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Preprint REVIEW | doi:10.20944/preprints202403.0553.v1

Exploring Sustainable Aquafeed Alternatives with a Specific Focus on the Ensilaging Technology of Fish Waste

Anastasiia Maksimenko, Leonid Belyi, Anna Podvolotskaya, Oksana Son, Liudmila Tekutyeva

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: ensiling technology; fish waste; fermentation; lactic acid bacteria; fish silage; hydrolysed proteins; biotransformation; aquafeed; circular aquaculture; sustainability; food waste valorization

Online: 11 March 2024 (08:58:48 CET)

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Preprint ARTICLE | doi:10.20944/preprints202404.0683.v1

Gamifying Cultural Heritage: The Digitization Journey of Genoa University Museum System (SMA-UniGe)

Lara La Tessa, Stefano Schiaparelli, Mauro Coccoli, Saverio Iacono, Gianni Vercelli, Daniele Zolezzi

Subject: Computer Science And Mathematics, Other Keywords: Digital Heritage; Gamification; User Experience

Online: 10 April 2024 (09:40:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.1550.v1

Cultural Heritage and Virtual Reality: A Setup for Balzi Rossi Museum

Saverio Iacono, Matteo Scaramuzzino, Luca Martini, Chiara Panelli, Daniele Zolezzi, Massimo Perotti, Antonella Traverso, Gianni Vercelli

Subject: Computer Science And Mathematics, Computer Vision And Graphics Keywords: Virtual reality; Cultural Heritage; 3D Reconstruction

Online: 26 March 2024 (07:27:47 CET)

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Preprint REVIEW | doi:10.20944/preprints202404.0312.v1

The Aftermath of COVID-19: Exploring Long-Term Effects on the Organ Systems

Maryam Golzardi, Altijana Hromić-Jahjefendić, Jasmin Šutković, Orkun Aydin, Pinar Aydin, Tea Bećirević, Elrashy M. Redwan, Alberto Rubio-Casillas, Vladimir N. Uversky

Subject: Medicine And Pharmacology, Pathology And Pathobiology Keywords: SARS-CoV-2; long-COVID; organ systems

Online: 3 April 2024 (17:00:10 CEST)

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Background: Post-acute sequelae of SARS-CoV-2 infection (PASC) is a complicated disease that affects millions of people all over the world. Previous studies have shown that PASC impacts 10% of SARS-CoV-2 infected patients of which 50-70% are hospitalized. It has also been shown that 10-12% of those vaccinated against COVID-19 were affected with PASC and its complications. The severity and the later development of PASC symptoms is positively associated with the early intensity of the infection. Results: The generated health complications caused by PASC involve a vast variety of organ systems. Patients affected by PASC have been diagnosed with neuropsychiatric and neurological symptoms. Cardiovascular system also has been involved and several diseases such as myocarditis, pericarditis, and coronary artery diseases were reported. Chronic hematological problems such as thrombotic endothelialitis and hypercoagulability were described as a condition that could increase the risk of clotting disorders and coagulopathy in PASC patients. Chest pain, breathlessness, and cough in PASC patients were associated with respiratory system in long COVID-19 causing respiratory distress syndrome. The observed immune complications were notable, involving several diseases. Renal system also was impacted and result in raising the risk of diseases such as thrombotic issues, fibrosis, and sepsis. Endocrine gland malfunction can lead to diabetes, thyroiditis, and male infertility. Symptoms such as diarrhea, nausea, loss of appetite and taste were also among reported observations due to several gastrointestinal disorders. Skin abnormalities might be an indication of infection and long-term implications such as persistent cutaneous complaints were linked to PASC. Conclusions: Long COVID is a multidimensional syndrome with considerable public health implications, affecting several physiological systems and demanding thorough medical therapy as well as more study to address its underlying causes and long-term effects.

Preprint ARTICLE | doi:10.20944/preprints202409.1134.v1

The Mother's Day Solar Storm of 11 May 2024 and Its Effect on Earth's Radiation Belts

Viviane Pierrard, Alexandre Winant, Edith Botek, Maximilien Péters de Bonhome

Subject: Physical Sciences, Space Science Keywords: geomagnetic storm; solar energetic particles; solar event; radiation belts; energetic protons; relativistic electrons

Online: 14 September 2024 (10:38:34 CEST)

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Preprint REVIEW | doi:10.20944/preprints202404.0958.v1

Unlocking the Potential of Mannosylerythritol Lipids: Properties and Industrial Applications

Joana Dias de Almeida, Miguel Figueiredo Nascimento, Petar Kekovic, Frederico Castelo Ferreira, Nuno Torres Faria

Subject: Engineering, Bioengineering Keywords: Mannosylerythritol lipids; Glycolipids; Biosurfactants; Cosmetics; Biomedical; Food; Bioremediation

Online: 15 April 2024 (13:55:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.0069.v1

An Attitude Adaptive Integral Sliding Mode Control Algorithm with Feedforward Compensation Disturbance Observer for Microsatellites to Track High-Speed Moving Targets

Xinyan Yang, Lei Li, Yurong Liao, Zhaoming Li

Subject: Engineering, Aerospace Engineering Keywords: Microsatellite; Attitude Control; Moving Target Tracking; Disturbance Observer; Sliding Mode Control

Online: 1 March 2024 (18:25:20 CET)

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Preprint ARTICLE | doi:10.20944/preprints202403.1668.v1

Utilization of Flotation Wastewater for Separation of Chalcopyrite and Molybdenite by Selective Surface Passivation

Guohua Gu, Yuwu Guo, Yisheng Zhang, Qingke Li, Su Liao, Yanhong Wang

Subject: Engineering, Mining And Mineral Processing Keywords: Chalcopyrite; Molybdenite; Flotation wastewater; Surface passivation; Flotation separation

Online: 27 March 2024 (10:33:26 CET)

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Preprint ARTICLE | doi:10.20944/preprints202404.1210.v1

Fabrication and Characterization of Porous PEGDA Hydrogels for Articular Cartilage Regeneration

Silvia Gonella, Margarida F. Domingues, Filipe Miguel, Carla S. Moura, Carlos A.V. Rodrigues, Frederico Castelo Ferreira, João C. Silva

Subject: Engineering, Bioengineering Keywords: Articular cartilage tissue engineering; Biocompatibility tests; Chondrogenic differentiation; Gas foaming; Hydrogels; Mesenchymal stem/stromal cells; Polyethylene glycol diacrylate

Online: 18 April 2024 (07:51:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.0394.v1

Computational Vision Algorithms on the Edge for Unpalleting System

Danilo Greco, Majid Fasihiany, Ali Varasteh Ranjbar, Francesco Masulli, Stefano Rovetta, Alberto Cabri

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: Unpalleting System; Computer Vision; Object Detection; Pattern Matching; Scale-Invariant Feature Transform (SIFT); Oriented FAST and Rotated BRIEF (ORB); Haar Cascade Classifiers; Industrial Automation; Robotic Manipulators; Machine Vision

Online: 4 July 2024 (06:58:17 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0914.v1

Timing and Graded BMP Signalling Determines Fate of Neural Crest and Ectodermal Placode Derivatives from Pluripotent Stem Cells

Keshi Chung, Malvina Millet, Ludivine Rouillon, and Azel Zine

Subject: Biology And Life Sciences, Cell And Developmental Biology Keywords: bone morphogenetic proteins; human pluripotent stem cells; human cell models; organoids; preplacodal ectoderm; otic lineage

Online: 12 September 2024 (07:41:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201612.0123.v1

Using Radiofrequency Identification Automated Technologies for Predictive Analytics of Signaling Factors to Determining In-Patient Post Treatment Sleep Quality

Haley Hudson, Erick Jones, Dawit Aberra, Shalini Gupta, Felicia Jefferson

Subject: Public Health And Healthcare, Other Keywords: EMG; EEG; ECG; EOG; polysomnography

Online: 25 December 2016 (08:34:20 CET)

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Preprint ARTICLE | doi:10.20944/preprints202404.1704.v1

Vision System for the Mars Sample Return Capture, Containment and Return System (CCRS)

Brent Jon Bos, David Donovan, John Capone, Chen Wang, Terra Hardwick, Dylan Bell, Yuqing Zhu, Robert Podgurski, Bashar Rizk, Ireneusz Orlowski, Rachel Edison, David Harvey, Brianna Dizzon, Lindsay Haseltine, Kristoffer Olsen, Chad Sheng, Robert Bousquet, Luan Vo, Georgi Georgiev, Kristen Washington, Michael Singer, Stefan Ioana, Anloc Le, Elena Georgieva, Michael Hackett, Michael Ravine, Michael Caplinger, Phillip Coulter, Erin Percy, Charles Torisky, Jean Lauenstein, Kaitlyn Ryder, Michael Campola, Dillon Johnstone, William J. Thomes, Richard G. Schnurr, John McCloskey, Eugenia DeMarco, Ellen Lee, Calinda Yew, Bo Yang, Mingyu Han, Bartosz Blonski

Subject: Engineering, Aerospace Engineering Keywords: Mars; cameras; sample return; space optics

Online: 26 April 2024 (09:33:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202406.1287.v1

SE-CBAM-YOLOv7: An Improved Lightweight Attention Mechanism-Based YOLOv7 for Real-Time Detection of Small Aircraft Targets in Microsatellite Remote Sensing Imaging

Zhenping Kang, Yurong Liao, Shuhan Du, Haonan Li, Zhaoming Li

Subject: Engineering, Aerospace Engineering Keywords: aircraft detection; YOLOv7; CBAM; SENet; microsatellite

Online: 18 June 2024 (15:09:54 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.0113.v1

Geomagnetic Field Measurements based Adaptive Cubature H-infinity Filter for Microsatellite Autonomous Orbit Estimation

Zhaoming Li, Xinyan Yang, Lei Li, Yurong Liao

Subject: Engineering, Aerospace Engineering Keywords: autonomous orbit estimation; microsatellite; cubature Kalman filter; robust; geomagnetic field

Online: 1 July 2024 (13:54:09 CEST)

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Preprint REVIEW | doi:10.20944/preprints202405.1167.v1

Advancements in Bioengineering for Descemet Membrane Endothelial Keratoplasty (DMEK)

Sarah Barbara Zwingelberg, Gizem Karabiyik, Paul Gehle, Melanie von Brandenstein, Sabina Eibichova, Christian Lotz, Florian Groeber-Becker, Daniel Kampik, Ula Jurkunas, Gregor Lang

Subject: Medicine And Pharmacology, Ophthalmology Keywords: Descemet Membrane Endothelial Keratoplasty (DMEK); biofabrication; tissue engineering; corneal endothelium; regenerative medicine; Fuchs Endothelial Corneal Dystrophy; corneal endothelial cells; Descemet's membrane

Online: 17 May 2024 (15:29:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.1876.v1

Assessment of Particulate Organic Carbon in the Mediterranean Sea Based on Dual-Optimization Random Forest

Chao Li, Huisheng Wu, Chaojun Yang, Long Cui, Ziyue Ma, Lejie Wang

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: particle organic carbon; Mediterranean; machine learning; tuneRanger R package; geographic detector

Online: 28 May 2024 (14:28:22 CEST)

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Preprint REVIEW | doi:10.20944/preprints202407.1424.v1

The Past, Present and Future of Plant Activator Targeting Salicylic Acid Signal Pathway

Misbah Naz, Dongqin Zhang, Kangcen Liao, Xulong Chen, Nazeer Ahmed, Jing-Jiang Zhou, Zhuo Chen

Subject: Biology And Life Sciences, Plant Sciences Keywords: plant activator; salicylic acid signal pathway; systemic acquired resistance; plant resistance; action mechanism

Online: 17 July 2024 (11:39:53 CEST)

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Plant activators have emerged as promising alternatives to conventional pesticides for crop disease manage-ment due to their unique mode of action. By priming the plant's innate immune system, these compounds can induce systemic acquired resistance against a broad spectrum of pathogens without directly inhibiting their proliferation. Key advantages of plant activators include prolonged defense activity, lower effective dosages, and negligible risk of developing pathogen resistance. Among the various defensive pathways tar-geted, the salicylic acid (SA) signaling cascade has been extensively explored, leading to the successful devel-opment of commercial activators like benzothiadiazole for widespread application in crop protection. While the action sites of many SA-targeting activators have been preliminarily mapped to different steps along the pathway, a comprehensive understanding of their precise mechanisms remains elusive. This review provides a historical perspective on plant activator development and outlines diverse screening strategies employed across multiple levels, from whole-plant bioassays to molecular and transgenic approaches. We expound on the intricate components, biological relevance, and regulatory circuits governing the SA pathway, while criti-cally examining the structural features, bioactivities, and proposed modes of action of classical activators such as benzothiadiazole derivatives, salicylic acid analogs, and other small molecules. Insights from field trials as-sessing their practical applicability are also discussed. Furthermore, we highlight the current status, challenges, and future prospects in the realm of SA-targeting activator development globally, with a focus on recent en-deavors in China. Collectively, this comprehensive review aims to synthesize existing knowledge and provide a roadmap for future research toward developing more potent and mechanistically understood plant activa-tors that fortify crop immunity against disease.

Preprint ARTICLE | doi:10.20944/preprints202406.0090.v1

Effects of Salinity on Physicochemical Properties, Flavor Compounds, and Bacterial Communities in Broad Bean Paste-Meju Fermentation

Qingyan Guo, Jiabao Peng, Jingjing Zhao, Jie Lei, Yukun Huang, Bing Shao

Subject: Biology And Life Sciences, Food Science And Technology Keywords: broad bean paste; salinity; microbial community; flavor compounds; correlation

Online: 3 June 2024 (13:51:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0286.v1

Microbial Biodiversity in Amuyo Ponds Sediments, Three Andean Hydrothermal Lagoons in Northern Chile

Claudia Vilo, Francisca Fabrega, Benito Gómez-Silva

Subject: Biology And Life Sciences, Life Sciences Keywords: Amuyo Ponds; Atacama Desert; biodiversity; extreme environments; metagenomics; microbial and viral communities

Online: 4 September 2024 (12:51:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.1002.v6

Dark Energy and Dark Matter from Extra Dimensional Symmetry as Different Manifestations of Vacuum Energy

Kabir Umar

Subject: Astronomy And Astrophysics, Physical Sciences Keywords: chirality; dark energy; dark matter; extra dimension; gravity; neutrino; vacuum energy

Online: 23 September 2024 (12:19:15 CEST)

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Preprint REVIEW | doi:10.20944/preprints202408.0822.v1

3D Organoid Models in Cancer Immunotherapy: Bioengineering Approach for Personalized Treatment

Syarifah Tiara Noorintan, Chelsie Angelius, Fuad Gandhi Torizal

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: 3D organoid models; Cancer immunotherapy; Personalized treatment; Bioengineering; Culture methods

Online: 12 August 2024 (12:49:00 CEST)

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Preprint REVIEW | doi:10.20944/preprints202407.1028.v1

Biomaterials in Drug Delivery and Clinical Applications

Nadia Islam, Aiša Galijatović, Selma Kozarić, Adna Hrapović, Ajla Tipura, Boris Kovalenko, Maida Hajdarpašić, Asmaa Al Bourghli, Haris Lokvančić, Abas Sezer, Alaa A. Aljabali, Murtaza M. Tambuwala, Altijana Hromić-Jahjefendić, Vladimir N. Uversky

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: biomaterials; drug delivery; clinical applications; ethics

Online: 15 July 2024 (10:48:08 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.1025.v1

Assessment of Adolescent Soccer Players' Physical Performance Using Inertial Measurement Units and Principal Component Analysis

Giacomo Villa, Foivos Papaioannou, Manuela Galli, Veronica Cimolin

Subject: Engineering, Bioengineering Keywords: Soccer players performance; objective physical measurements; Inertial Measurement Units; Principal Component Analysis; wearable sensors; medical software

Online: 15 July 2024 (11:10:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201609.0088.v1

Multi-range Conditional Random Field for Classifying Railway Electrification System Objects

Jaewook Jung, Leihan Chen, Gunho Sohn, Chao Luo, Jong-Un Won

Subject: Engineering, Civil Engineering Keywords: classification; railway; power line; mobile laser scanning data; conditional random field; layout compatibility

Online: 26 September 2016 (09:33:05 CEST)

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Railway has been used as one of the most crucial means of transportation in public mobility and economic development. For efficiently operating railways, the electrification system in railway infrastructure, which supplies electric power to trains, is essential facilities for stable train operation. Due to its important role, the electrification system needs to be rigorously and regularly inspected and managed. This paper presents a supervised learning method to classify Mobile Laser Scanning (MLS) data into ten target classes representing overhead wires, movable brackets and poles, which are recognized key objects in the electrification system. In general, the layout of railway electrification system shows a strong regularity of spatial relations among object classes. The proposed classifier is developed based on Conditional Random Field (CRF), which characterizes not only labeling homogeneity at short range, but also the layout compatibility between different object classes at long range in the probabilistic graphical model. This multi-range CRF model consists of a unary term and three pairwise contextual terms. In order to gain computational efficiency, MLS point clouds is converted into a set of line segments where the labeling process is applied. Support Vector Machine (SVM) is used as a local classifier considering only node features for producing the unary potentials of CRF model. As the short-range pairwise contextual term, Potts model is applied to enforce a local smoothness in short-range graph. While, long-range pairwise potentials are designed to enhance spatial regularities of both horizontal and vertical layouts among railway objects. We formulate two long-range pairwise potentials as the log posterior probability obtained by Naïve Bayes classifier. The directional layout compatibilities are characterized in probability look-up tables which represent co-occurrence rate of spatial relations in horizontal and vertical directions. The likelihood function is formulated by multivariate Gaussian distributions. In the proposed multi-range CRF model, the weight parameters to balance four sub-terms are estimated by applying the Stochastic Gradient Descent (SGD). The results show that the proposed multi-range CRF can effectively classify detailed railway elements, representing the average recall of 97.66% and the average precision of 97.07% for all classes.

Preprint ARTICLE | doi:10.20944/preprints201703.0124.v1

Assessing and Resolving Model Misspecifications in Metabolic Flux Analysis

Rudiyanto Gunawan, Sandro Hutter

Subject: Engineering, Bioengineering Keywords: metabolic flux analysis, model misspecification, constraint-based model, stoichiometric model, Chinese hamster ovary cell culture

Online: 16 March 2017 (17:38:36 CET)

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Preprint ARTICLE | doi:10.20944/preprints202402.0890.v1

Characterization of Industrial High-Strength Aluminum Alloys by Laser-Induced Breakdown Spectroscopy, With Special Emphasis on the Detection of Low Contents of Mg, Mn, Cr, Cu, Zn and Sensing of Molecular Diatomic Emission of AlO During Ablation

Svetlana Rytchkova, Luc Lévesque

Subject: Physical Sciences, Optics And Photonics Keywords: Laser-induced breakdown spectroscopy (LIBS); Aluminum (Al); Magnesium (Mg); Manganese (Mn); Chromium (Cr); Copper (Cu); Zinc (Zn); Aluminum Monoxide (AlO).

Online: 16 February 2024 (07:01:12 CET)

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Preprint ARTICLE | doi:10.20944/preprints202405.2089.v1

The Entropy of the Collapsing Molecular Cloud

Gemechu Muleta Kumssa

Subject: Physical Sciences, Space Science Keywords: Entropy; Gravity; Turbulence; Molecular cloud; Star formation

Online: 31 May 2024 (08:10:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.1383.v1

A Peak Finding Siamese Convolutional Neural Network (PF-SCNN) for Aero-engine Hot Jet FT-IR Spectrum Classification

Shuhan Du, Wei Han, Zhenping Kang, Fengkun Luo, Yurong Liao, Zhaoming Li

Subject: Engineering, Aerospace Engineering Keywords: infrared spectrum detection; FT-IR; aero-engine hot jet; siamese convolutional neural network networks; peak finding

Online: 17 July 2024 (13:41:29 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202406.1279.v1

CWT-AM-CNN: A Lightweight Feature Extraction Network with Attention Mechanism Based on CWT Peak Seeking Method for Aero-Engine Hot Jet FT-IR Classification

Shuhan Du, Wei Han, Zhenping Kang, Xiangning Lu, Yurong Liao, Zhaoming Li

Subject: Engineering, Aerospace Engineering Keywords: Infrared Spectral detection; FT-IR; Aero-engine hot jet; deep learning; Attention Mechanism

Online: 20 June 2024 (12:51:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202406.0062.v1

Development and Testing of a Smart Ice Control System Using Machine Learning Models

Dario Farina, Hatim Machrafi, Patrick Queeckers, Patrice Desire Dongo, Carlo Saverio Iorio

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: aerospace icing prevention; risk mitigation in aviation; graphene-based sensors; dynamic ice sensing; de-icing; conductive polymer applications; smart sensors; pedot:pss polymers; 2D materials; micromachines

Online: 3 June 2024 (10:41:17 CEST)

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Preprint REVIEW | doi:10.20944/preprints202206.0402.v1

Biotechnology, Bioengineering and Applications of Bacillus Nattokinase

Li Yuan, Chen Liangqi, Tang Xiyu, Li Jinyao

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: Bacillus nattokinase; Physiological and biochemical characteristics; Molecular structure; Molecular modifcation; Functional food and clinical application

Online: 29 June 2022 (09:39:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202406.0839.v1

Lifetime of Long-Lived Sunspot Groups

Judit Muraközy

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Solar physics; Sunspots; Sunspot groups; Sunspot cycle; Solar magnetic fields; Solar active region magnetic fields

Online: 12 June 2024 (12:21:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.2044.v1

Evaluation of Solid Phase Joining Using Friction Stir Welding Technique between Aluminum 6061 and Polymer-Based Composites

NOUMAN ALI, Zain ul Abadeen, Yumna Qureshi

Subject: Chemistry And Materials Science, Other Keywords: FSW (Friction Stir Welding); IMc (Intermetallic Compounds); UTM (Universal Testing Machine); RPM (Revolutions Per Minute); HAZ (Heat Affected Zone); WZ (Weld Zone); BM (Base Metal); CNC (Computer Numeric Control); EDM (Electrical Discharge Machine)

Online: 29 August 2024 (16:58:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0030.v1

Surface Ages in the Vicinity of the Chang’e-6 Landing Site

Li Zhang, Jianzhong Liu, Gregory Michael, Ping Ge, Kaichang Di, Congzhe Wu, Kai Zhu, Xiaoxi Kang

Subject: Environmental And Earth Sciences, Geophysics And Geology Keywords: Chang’ e-6; CSFD measurements; absolute model age; Apollo basin

Online: 2 September 2024 (08:54:01 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0299.v1

A New Tool for Extracting Static and Dynamic Parameters from [¹⁸F]F-DOPA PET/CT in Pediatric Gliomas

Michele Mureddu, Thomas Funck, Giovanni Morana, Andrea Rossi, Antonia Ramaglia, Claudia Milanaccio, Antonio Verrico, Gianluca Bottoni, Francesco Fiz, Arnoldo Piccardo, Marco Massimo Fato, Trò Rosella

Subject: Engineering, Bioengineering Keywords: automatic pipeline; brain gliomas; [¹⁸F]F-DOPA PET imaging; FLAIR MRI; pediatric gliomas

Online: 4 September 2024 (18:11:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0750.v1

Highly Sensitive and Flexible Capacitive Pressure Sensors Combined with Porous Structure and Holes Array by Sacrificial Templates and Laser Ablation

Yibin Zhao, Jingyu Zhou, Chenkai Jiang, Tianlong Xu, Kaixin Li, Dawei Zhang, Bin Sheng

Subject: Engineering, Electrical And Electronic Engineering Keywords: flexible capacitive pressure sensor; porous structure; array of holes; polymer; laser ablation

Online: 12 August 2024 (04:10:59 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1432.v1

Application of Artificial Intelligence and Machine Learning in Expert Systems for the Mining Industry: Literature Review of Modern Methods and Technologies

Natalya Mutovina, Margulan Nurtay, Alexey Kalinin, Aleksandr Tomilov, Nadezhda Tomilova

Subject: Computer Science And Mathematics, Computer Science Keywords: Machine Learning; Artificial Intelligence; Mining Industry; deep learning; Internet of Things; Predictive Analysis; reinforcement learning

Online: 20 August 2024 (08:47:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.0282.v1

Green-Powered Electric Public Mobility: Integrating Urban and Interurban Routes – A Case Study Analysis

Alessandro Franco, Giovanni Lutzemberger, Marco Giorgio Bevilacqua, Francesco Giuseppe Quilici, Matilde Vezzani

Subject: Engineering, Transportation Science And Technology Keywords: Electrification; Renewable energy integration; Public transit; Photovoltaic systems; Sustainable urban development; Energy independence; Modular solution.

Online: 3 April 2024 (10:34:08 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.0928.v1

Transmission Spectroscopy Along the Transit of Venus: A Proxy for Exoplanets Atmospheric Characterization

Alexandre Baptista Branco, Pedro Machado, Olivier Demangeon, Sarah Amelia Jaeggli, Thomas Widemann, Paolo Tanga

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Venus; Solar Transit; High-resolution transmission spectroscopy; Radiative transfer; Cross-correlation; Carbon dioxide; Carbon monoxide; Ozone; Venus-like exoplanets

Online: 11 July 2024 (08:37:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202401.0608.v2

Global Symmetry of Quantum Systems Involving Space

Yuanxin Li

Subject: Physical Sciences, Theoretical Physics Keywords: symmetry; quantum system; gravitational effective mass

Online: 15 January 2024 (08:17:22 CET)

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Preprint ARTICLE | doi:10.20944/preprints202408.1366.v1

Pore Characteristics of Hydrate-Bearing Sediments from Krishna-Godavari Basin, Offshore India

Wen Guan, Hailin Yang, Xindi Lu, Hailong Lu

Subject: Environmental And Earth Sciences, Oceanography Keywords: hydrate-bearing sediments; microporous structure; Krishna-Godavari Basin; pore characterization

Online: 20 August 2024 (03:39:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.0039.v1

Water Recuperation from Regolith at Martian, Lunar & Micro-gravity during Parabolic Flight

Dario Farina, Hatim Machrafi, Patrick Queeckers, Christophe Minetti, Carlo Saverio Iorio

Subject: Engineering, Aerospace Engineering Keywords: regolith hydration; water extraction technologies; parabolic flight simulation; ice-regolith interaction; substrate condensation efficiency; in-situ resource utilization (ISRU); thermal condensation processes; micro-gravity experiments; surface properties and water recovery; space resources; space mining

Online: 1 May 2024 (09:56:06 CEST)

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Preprint REVIEW | doi:10.20944/preprints202407.0134.v1

Revitalizing BCG Immunotherapy for Bladder Cancer: Nanotechnology and Bioengineering Approaches

Maoxin Lv, Shihao Shang, Kepu Liu, Yuliang Wang, Peng Xu, Hao Song, Jie Zhang, Zelong Sun, Yuhao Yan, Zheng Zhu, Hao Wu, Hao Li

Subject: Medicine And Pharmacology, Medicine And Pharmacology Keywords: nano-based drug delivery systems; bladder cancer; immunotherapy; BCG; anticancer nanoparticles

Online: 2 July 2024 (02:21:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.1734.v1

Metabolic and Transcriptional Analysis Reveals Flavonoid Involvement in the Drought Stress Response of Mulberry Leaves

Guo Chen, Dong Li, Pei Yao, Fengyao Chen, Jianglian Yuan, Bi Ma, Zhen Yang, Biyue Ding, Ningjia He

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: drought stress; mulberry; flavonoids biosynthesis; diversified utilization

Online: 27 May 2024 (10:33:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.0133.v1

A Systemic Approach on Product Life Cycle for Product Development Process in Agriculture

Franciele Lourenço, Marcelo Gonçalves, Osiris Canciglieri Júnior, Izamara Palheta Dias, Guilherme Benitez, Elpidio Nara

Subject: Business, Economics And Management, Econometrics And Statistics Keywords: Sustainability Practices; Life-Cycle Assessment; Product Development Process; Market Perfor-mance; Systemic approach.

Online: 2 April 2024 (16:05:11 CEST)

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For a long time, a company's Product Development Process (PDP) was seen as supporting the operations department, although PDP decisions and mistakes have a considerable impact on market performance. This is critical even in agriculture where bad habits and practices in the PDP can lead rural producers to great losses. Therefore, this research investigated the effect on the market performance of rural products (banana) in the southern region of Brazil, based on two analyses: (i) how sustainability practices support the PDP phases and (ii) how the phases of the Product Life Cycle Assessment (LCA) mediate sustainability practices and PDP phases. This study presents a quantitative analysis using Confirmatory Factor Analysis (CFA) and hierarchical ordinary least squares (OLS) regression of data obtained from a survey of 110 rural producers who directly participate in the banana production and planning process in southern Brazil. Our results shows that sustainability practices support the PDP, and we confirm that the product development and post-development phase has an effect on market performance. In addition, we identified that in the pre-development phase of the PDP, dealing with rural products (bananas), the maturity stage of the LCA mediates sustainability. In the PDP development phase, we concluded that rural families that develop economic and environmental practices with their products in the market growth phase may have reduced results. As for the post-development phase of the PDP, we conclude that when companies invest in environmental and social practices, there is a complete mediation of the effect, where these practices lose strength if the product is in the introduction and maturity phases in the market. As originality, our study contributed to demonstrate value on the product life cycle for the product development process in agriculture using sustainability practices through a systemic approach, filling the gap in the literature due to the lack of research on these areas seen in an integrated way.

Preprint ARTICLE | doi:10.20944/preprints202407.0238.v1

VOGDB - Database of Virus Orthologous Groups

Lovro Trgovec-Greif, Hans-Joerg Hellinger, Jean Mainguy, Alexander Pfundner, Dmitrij Frishman, Michael Kiening, Nicole Webster, Patrick Laffy, Michael Feichtinger, Thomas Rattei

Subject: Biology And Life Sciences, Virology Keywords: protein families; orthologous groups; databases; viruses; phages

Online: 2 July 2024 (13:13:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.1446.v1

Hardware in the Loop Simulation of Gas Turbines: How Real Time Control System Design Tools Can Be Exploited Also to Generate Fault Cases to Train and Tune Data Based Diagnostic Systems.

Attilio Brighenti, Chiara Brighenti

Subject: Engineering, Mechanical Engineering Keywords: HIL model(s); Dynamic simulation(s); Data-based modelling; Predictive diagnostics; Fault detection and isolation (FDI)

Online: 25 March 2024 (08:30:18 CET)

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Preprint REVIEW | doi:10.20944/preprints202305.0057.v1

Bioengineering Microbes for Improved Nutritional Value and Health Benefits.

Jatan Pandya, Rachana S Adiga, Akash K, Chadhmika C H, Niveditha K, Debasish Kar

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: bioengineered; recombinant; E. coli; insulin; penicillin; cancer; vitamin B12; replacement therapy; nutrition; mABs

Online: 2 May 2023 (05:04:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.1792.v1

Unsupervised Characterization of Water Composition with UAV-based Hyperspectral Imaging and Generative Topographic Mapping

John Waczak, Adam Aker, Lakitha O. H. Wijeratne, Shawhin Talebi, Ashen Fernando, Prabuddha M. H. Dewage, Mazhar Iqbal, Matthew Lary, David Schaefer, Gokul Balagopal, And David J. Lary

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Hyperspectral Imaging; Remote Sensing; Unsupervised Classification; Endmember Extraction; Generative Topographic Mapping

Online: 3 June 2024 (17:09:23 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.1271.v1

Exploring the Impact of Environmental Conditions and Bioreactors on Microalgae Growth and Applications

Sally Do, Zhi-Yan Du

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: bioreactors; photobioreactors; microalgae; cultivation factors; incubation factors

Online: 17 September 2024 (09:56:35 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.0239.v1

Mitigating Large Language Model Bias: Automated Dataset Augmentation and Prejudice Quantification

Devam Mondal, Carlo Lipizzi

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: natural language processing; large language models; dataset augmentation; computational social science

Online: 6 May 2024 (07:24:03 CEST)

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Preprint REVIEW | doi:10.20944/preprints202402.1154.v1

3D Printing Modules for Self-Assembling Space Systems

Alex Ellery, Abdurr Elaskri

Subject: Engineering, Aerospace Engineering Keywords: additive manufacturing; 3D printed electric motors; self-assembly; reconfigurable robotics; flat-pack space structures; space debris resources

Online: 20 February 2024 (14:25:26 CET)

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Preprint ARTICLE | doi:10.20944/preprints202403.1444.v1

Environmental Chamber Characterization of an Ice Detection Sensor for Aviation Using Graphene and PEDOT:PSS

Dario Farina, Marco Mazio, Hatim Machrafi, Patrick Queeckers, Carlo Saverio Iorio

Subject: Engineering, Aerospace Engineering Keywords: Ice Formation; Aircraft Ice Detection; Hazard Management; Graphene Sensors; In-Flight Safety Technology; Real-time Ice Monitoring; Resistance Signal Analysis; Pedot:PSS; Climatic chamber

Online: 25 March 2024 (08:47:38 CET)

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Preprint ARTICLE | doi:10.20944/preprints202404.0140.v1

Design of an Axial-type Magnetic Gear with Auxiliary Flux-enhancing Structure

Fang Li, Hang Zhao, Xiangdong Su

Subject: Engineering, Electrical And Electronic Engineering Keywords: Axial magnetic gear; permanent-magnet machine; flux-enhancing effect; mapping relation; parameter optimization

Online: 2 April 2024 (09:23:32 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.1919.v1

Outlier Detection by Energy Minimization in Quantized Residual Preference Space for Geometric Model Fitting

Zhang Yun, Yang Bin, Zhao Xi, Shiqian Wu, Luo Bin, Liangpei Zhang

Subject: Computer Science And Mathematics, Computer Vision And Graphics Keywords: geometric model fitting; outlier detection; quantized residual; energy minimization

Online: 30 April 2024 (03:47:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.2092.v1

Design and On-Orbit Performance of Ku-Band Phase-Array SAR Payload System

Wei Yan, Xiaomin Tan, Jiang Wu, Mingze Yuan, Hongxing Dang, Wujun Chang

Subject: Engineering, Aerospace Engineering Keywords: Ku band; SAR system; payload; Taijing-4(03); on-orbit; application; micro-nano; satellite

Online: 29 August 2024 (07:14:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0110.v1

WebTraceSense - A Framework for the Visualization of User Log Interactions

Dennis Paulino, André Thiago Netto, Walkir A.T Brito, Hugo Paredes

Subject: Computer Science And Mathematics, Computer Science Keywords: User Log; Behavior Identification; Web Platform; DevOps; Statistical Analysis

Online: 2 August 2024 (12:27:22 CEST)

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The current surge in the deployment of web applications underscores the need to consider users' individual preferences in order to enhance their experience. In response to this, an innovative approach is emerging that focuses on the detailed analysis of interaction data captured by web browsers. This data, which includes metrics such as the number of mouse clicks, keystrokes, and navigation patterns, offers insights into user behaviour and preferences. By leveraging this information, developers can achieve a higher degree of personalization in web applications, particularly in the context of interactive elements such as online games. This paper presents the WebTraceSense project, which aims to pioneer this approach by developing a framework that encompasses a backend and frontend, advanced visualization modules, a DevOps cycle, and the integration of AI and statistical methods. The backend of this framework will be responsible for securely collecting, storing, and processing vast amounts of interaction data from various websites. The frontend will provide a user-friendly interface that allows developers to easily access and utilize the platform’s capabilities. One of the key components of this framework is the visualization modules, which will enable developers to monitor, analyse, and interpret user interactions in real-time, facilitating more informed decisions about user interface design and functionality. Furthermore, the WebTraceSense framework incorporates a DevOps cycle to ensure continuous integration and delivery, thereby promoting agile development practices and enhancing the overall efficiency of the development process. Moreover, the integration of AI methods and statistical techniques will be a cornerstone of this framework. By applying machine learning algorithms and statistical analysis, the platform will not only personalize user experiences based on historical interaction data but also infer new user behaviours and predict future preferences. In order to validate the proposed components, a case study was conducted which demonstrated the usefulness of the WebTraceSense framework in the creation of visualizations based on an existing dataset.

Preprint ARTICLE | doi:10.20944/preprints202408.0590.v1

Exploring Senolytic and Senomorphic Properties of Medicinal Plants for Anti-Aging Therapies

Monika Imb, Zsolt Véghelyi, Michael Maurer, Harald Kühnel

Subject: Biology And Life Sciences, Plant Sciences Keywords: inflammation; herbal extracts; senolytics; senomorphics; chamomile; etoposide

Online: 8 August 2024 (08:37:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1263.v1

CFD Simulation of Dynamic Temperature Variations Induced by Tunnel Ventilation in a Broiler House

Lak-yeong Choi, Kehinde Favour Daniel, Se-yeon Lee, Chae-rin Lee, Ji-yeon Park, Jinseon Park, and Se-woon Hong

Subject: Biology And Life Sciences, Animal Science, Veterinary Science And Zoology Keywords: Poultry heat production; thermal gradients; microclimate; inlet baffles; CFD validation

Online: 17 September 2024 (00:41:41 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.1284.v1

Robust Wideband Interference Suppression Method for GNSS Array Antenna Receiver via Hybrid Beamforming Technique

Zhenxing Xu, Qijia Dong, Shenyang Li, Fuzhan Yue, Meng Wang, Zhenghuan Xia, Xiao Chen, Shuangna Zhang, Guoji Zou, Huizheng Wang

Subject: Engineering, Aerospace Engineering Keywords: wideband interference; anti-jamming; hybrid beamforming; hybrid array; digital array

Online: 18 April 2024 (15:42:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.2062.v1

IFU Spectroscopic Study of the Planetary Nebula Abell 30: Mapping the Ionization and Kinematic Structure of the Inner Complex

Kam Ling Chan, Quentin Andrew Parker, Andreas Ritter

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Planetary nebulae; Abell 30; Integral spectroscopy; Kinematics; velocity maps; Binary system; born-again scenario; wolf rayet central star; hydrogen deficient CSPN

Online: 30 May 2024 (13:43:19 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1396.v1

Precision Ice Detection on Power Transmission Lines: A Novel Approach with Multi-Scale Retinex and Advanced Morphological Edge Detection Monitoring

Nalini Rizkyta Nusantika, Jin Xiao, Xiaoguang Hu

Subject: Computer Science And Mathematics, Computer Vision And Graphics Keywords: Power Transmission Line Icing; Ice Detection; Image Segmentation; Edge Detection; Multi-Scale Retinex; Morphological Operations; Ice Thickness Measurement; Binocular Cameras; Monitoring Systems

Online: 20 August 2024 (09:23:10 CEST)

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Background: Ice formation on power transmission lines presents significant risks, including structural damage and power outages. Traditional methods for detecting ice on these lines have limitations, particularly in challenging environmental conditions. This study aims to enhance ice detection accuracy by introducing a novel image segmentation and edge detection methodology using improved multi-scale Retinex and advanced morphological operations. Method: The proposed method integrates multi-stage image processing techniques, including image enhancement, grayscale conversion, thresholding, segmentation, object isolation, and edge detection. High-resolution binocular cameras were used to capture images of ice formations on transmission lines. The effectiveness of the method was assessed through a series of metrics, including accuracy, sensitivity, specificity, and precision, and compared with existing methodologies. Results: The proposed method demonstrated superior performance in both ice detection and thickness measurement. The method effectively identified and isolated ice formations under various conditions with an average accuracy of 98.35%, sensitivity of 91.63%, specificity of 99.42%, and precision of 96.03%. Additionally, the analysis of ice thickness measurements further highlighted the method’s accuracy, with a notably low root mean squared error (RMSE) of 1.20 mm and mean absolute error (MAE) of 1.10 mm, along with a strong R-squared value of 0.95. These statistical metrics show that the proposed method not only outperforms previous methods in consistency and alignment with manual measurements but also stands out as the most reliable option for tasks requiring precise measurements, offering significant advancements in accuracy and reliability over existing methodologies. Conclusions: The enhanced image segmentation and edge detection approach provides a more accurate and reliable method for monitoring ice formations on power transmission lines.

Preprint ARTICLE | doi:10.20944/preprints202405.2020.v1

Safe Robust Adaptive Motion Control for Underactuated Marine Robots

G. Reza Nazmara, A. Pedro Aguiar

Subject: Engineering, Control And Systems Engineering Keywords: Marine Robots; Funnel Control; Backstepping Control; Fuzzy Systems; Finite-time Stability

Online: 30 May 2024 (13:16:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.1323.v1

Impact of Temperature, Solar Irradiation and Wind Dust on the Production of Solar Energy and the Assessment of Water Quality Used for Cooling and Cleaning Photovoltaic Panels

Ali Ait Ali, Youssef Ouhassan, Mohcine Abouyaakoub, Mbarek CHAHBOUN, Hicham Hihi

Subject: Engineering, Energy And Fuel Technology Keywords: impact; temperature; quality analysis; dust; photovoltaic panels; groundwater; cooling

Online: 22 March 2024 (05:08:51 CET)

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Preprint ARTICLE | doi:10.20944/preprints202403.1728.v1

Variable Doppler Starting Point Keystone Transform for Radar Maneuvering Target Detection

Wei Jia, Yuan Feng, Xingshuai Qiao, Tianrun Wang, Tao Shan

Subject: Engineering, Telecommunications Keywords: maneuvering target detection; range migration (RM); keystone transform (KT); sinc interpolation; variable Doppler starting point keystone transform (VDSPKT)

Online: 28 March 2024 (08:46:23 CET)

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Preprint ARTICLE | doi:10.20944/preprints201609.0056.v1

The Impacts of Different Green Manure on Soil Microbial Communities and Crop Health

Hongwu Yang, Jiaojiao Niu, Jiemeng Tao, Yabing Gu, Chao Zhang, Siyuan She, Wu Chen, Hongqi Yang, Huaqun Yin

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: green manure; soil microbial communities; crop health; Illumina sequencing

Online: 18 September 2016 (08:56:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202406.1264.v1

Microwave Corona Breakdown Suppression of Microstrip Coupled-Line Filter Using Lacquer Coating

Ming Ye, Shaoguang Hu, Rui Wang, Yong Zhang, Yongning He

Subject: Engineering, Electrical And Electronic Engineering Keywords: coupled-line filter; dielectric coating; microstrip circuits; microwave corona breakdown suppression ;

Online: 18 June 2024 (13:36:03 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.0844.v1

Web Application for Retrieval-Augmented Generation: Implementation and Testing

Irina Radeva, Ivan Popchev, Lyubka Doukovska, Miroslava Dimitrova

Subject: Computer Science And Mathematics, Software Keywords: Retrieval-augmented generation (RAG); open-source large language models (LLMs); 30 Antelope blockchain; IPFS; Ollama; LangChain; smart agriculture

Online: 15 March 2024 (14:38:51 CET)

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Preprint ARTICLE | doi:10.20944/preprints202402.1546.v1

Effective Evolutionary Principles for System-of-Systems: Insights from Agent-Based Modeling in Vehicular Networks

Jun-Jie Liu, Jun-Xian Liu, Meng-Meng Zhang

Subject: Engineering, Control And Systems Engineering Keywords: system-of-systems; evolutionary principle; agent-based model; internet of vehicles

Online: 27 February 2024 (11:52:06 CET)

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Preprint ARTICLE | doi:10.20944/preprints202406.1818.v1

An Insight into Perfusion Anisotropy within Solid Murine Lung Cancer Tumors

Antonio Martino, Rossana Terracciano, Bogdan Milićević, Miljan Milosevic, Vladimir Simić, Blake C. Fallon, Yareli Carcamo-Bahena, Amber Lee Rose Royal, Aileen Ayme Carcamo-Bahena, E. Brian Butler, Richard C. Willson, Miloš Kojić, Carly Sue Filgueira

Subject: Biology And Life Sciences, Other Keywords: Lung Cancer; Solid Tumors; Perfusion; Vascularity; Finite Element Computational Model; Smeared Physical Fields; Kojic Transport Model

Online: 26 June 2024 (14:43:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1334.v1

New Spectrophotometric Visible (VIS) Analysis to determine Sodium Valproate from Tablets

CRISTIAN-CATALIN GAVAT

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: Sodium valproate; antiepileptic drug; spectrophotometric quantitative analysis method; light yellow azo dye; official declared pure amount; quantitative color reaction; statistical validation procedure

Online: 19 August 2024 (14:27:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.0862.v1

Enabling Low-Dose In Vivo Benchtop X-ray Fluorescence Computed Tomography through Deep Learning-Based Denoising

Naghmeh Mahmoodian, Mohammad Rezapourian, Asim Abdulsamad Inamdar, Kunal Kumar, Melanie Fachet, Christoph Hoeschen

Subject: Engineering, Bioengineering Keywords: Deep learning; Artificial Intelligence; Xray Fluorescence; XFCT; AI; DL

Online: 14 March 2024 (12:26:34 CET)

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Preprint ARTICLE | doi:10.20944/preprints202402.0545.v1

Global Generalized Mersenne Numbers: Definition, Decomposition, and Generalized Theorems

Vladimir Pletser

Subject: Computer Science And Mathematics, Algebra And Number Theory Keywords: Mersenne numbers; Generalized Mersenne numbers; divisibility and congruence properties

Online: 9 February 2024 (10:50:56 CET)

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Preprint ARTICLE | doi:10.20944/preprints201607.0008.v1

Spectral and Polarization Signatures of Relativistic Shocks in Blazars

Markus Boettcher

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: active galaxies; blazars; jets; polarization; shock acceleration

Online: 8 July 2016 (03:03:04 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.0201.v1

Market Potential of Applying Autonomous Vehicles in the Shared Mobility Market: Opportunities and Challenges

Lin Tu, Min Xu

Subject: Social Sciences, Transportation Keywords: autonomous vehicle; shared mobility; SWOT analysis; PESTLE analysis; Porter’s Five Forces

Online: 2 July 2024 (10:36:09 CEST)

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Preprint REVIEW | doi:10.20944/preprints202404.0813.v1

Learning to Communicate through Multi-Agent Reinforcement Learning (MARL): A Systematic Literature Review

Ali Beikmohammadi

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: Reinforcement Learning; POMDP; Learn to Communicate; Systematic Literature Review; Quantitative Methods; Qualitative Methods

Online: 17 April 2024 (03:29:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.2031.v1

Towards Air Quality Protection in an Urban Area—Case Study

Zbigniew Nahorski, Piotr Holnicki, Andrzej Kałuszko

Subject: Environmental And Earth Sciences, Environmental Science Keywords: urban air pollution; residential emission; road traffic emission; low emission zone; environmental impact

Online: 26 July 2024 (03:24:40 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202402.1550.v1

Rectification for Stitched Images with Deformable Meshes and Residual Networks

Yingbo Fan, Shanjun Mao, Mei Li, Zheng Wu, Jitong Kang, Ben Li

Subject: Computer Science And Mathematics, Computer Vision And Graphics Keywords: image rectangular; deformable mesh; width residual network; global loss function

Online: 28 February 2024 (13:00:12 CET)

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Preprint ARTICLE | doi:10.20944/preprints202409.0006.v1

Regulatory Role of IL-6 in Immune-Related Adverse Events During Checkpoint Inhibitor Treatment in Melanoma

Krishna Pal Singh, Anuj Singh, Olaf Wolkenhauer, Shailendra Kumar Gupta

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: Melanoma metastasis; Ulcerative Colitis; Crohn's Disease; Rheumatoid arthritis; Integrated bioinformatics analysis; Virtual screening; Molecular docking; Molecular dynamic simulation

Online: 2 September 2024 (13:12:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.1448.v1

Protein Bioengineering of a Crucial Biopharmaceutical for Acute Lymphoblastic Leukaemia: Improving Toxicogical, Immune and Inflammatory Responses to Asparaginase

Grace Verónica Ruiz Lara, Tales Alexandre Costa-Silva, Jorge Javier Muso Cachumba, Johanna Cevallos-Espinel, Marina Gabriel Fontes, Mitla Garcia-Maya, Khondaker Miraz Rahman, CARLOTA OLIVEIRA RANGEL-YAGUI, Gisele Monteiro

Subject: Medicine And Pharmacology, Pediatrics, Perinatology And Child Health Keywords: E. coli asparaginase; bioengineer; leukaemia; nonclinical assays

Online: 22 April 2024 (18:07:38 CEST)

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Preprint REVIEW | doi:10.20944/preprints202406.0616.v1

Is There a Link between the Microbiome and Autoimmune Aspects of Long COVID-19?

Altijana Hromić-Jahjefendić, Lejla Mahmutović, Abas Sezer, Tea Bećirević, Alberto Rubio-Casillas, Elrashdy M. Redwan, Vladimir N. Uversky

Subject: Biology And Life Sciences, Virology Keywords: SARS-CoV-2; autoimmunity; autoantibodies; ACE2; microbiome

Online: 11 June 2024 (15:49:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.0786.v1

Entropy-Driven Crystallization of Hard Colloidal Mixtures of Polymers and Monomers

Olia Bouzid, Daniel Martínez-Fernández, Miguel Herranz, Nikos Ch. Karayiannis

Subject: Chemistry And Materials Science, Physical Chemistry Keywords: Monte Carlo; Athermal Mixture; Crystallization; Entropy-driven Phase Transition; Colloids; Polymer; Face Centered Cubic; Hexagonal Close Packed, Molecular Simulation; Dense Packing; Hard Sphere

Online: 10 July 2024 (04:15:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.0564.v1

A Novel Mastadenovirus from N. noctula which Represents a Distinct Evolutionary Branch of Viruses Infecting Bats in Europe

Anna S. Speranskaya, Alexander V. Dorokhin, Elena V. Korneenko, Ivan K. Chudinov, Andrei E. Samoilov, Sergey V. Kruskop

Subject: Biology And Life Sciences, Virology Keywords: Chiroptera; European bat mastadenoviruses; novel species; viral distribution; Vespertilionidae; Nyctalus noctule; Pipistrellus nathusii

Online: 9 May 2024 (07:16:14 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.0107.v1

Getting Hold of the Tobamovirus Particle – Why and How? Purification Routes over Time and a New Customizable Approach

Tim Wendlandt, Beate Britz, Tatjana Kleinow, Katharina Hipp, Fabian J. Eber, Christina Wege

Subject: Biology And Life Sciences, Virology Keywords: tobacco mosaic virus (TMV); turnip vein clearing virus (TVCV); plant virus; history; purification; isolation; precipitation; ultracentrifugation; density gradients; iodixanol

Online: 1 April 2024 (14:56:36 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.1413.v1

Modelling of the Evapotranspiration Portion Calculation of the Water Footprint: A Global Sensitivity Analysis in the Brazilian Serra Gaúcha

Gustavo Mendes Platt, Vinícius Kuczynski Nunes, Paulo Roberto Martins, Ricardo Gonçalves de Faria Corrêa, Francisco Bruno Souza Oliveira

Subject: Environmental And Earth Sciences, Sustainable Science And Technology Keywords: Water footprint; Brazilian Viticulture; Sensitivity Analysis; Evapotranspiration

Online: 25 March 2024 (08:03:21 CET)

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Preprint ARTICLE | doi:10.20944/preprints202403.0008.v1

Instruments Detection and Descriptive Gesture Segmentation on a Robotic Surgical Maneuvers Dataset

Irene Rivas-Blanco, Carmen López-Casado, Juan María Herrera-López, José Cabrera-Villa, Carlos Pérez-del-Pulgar

Subject: Engineering, Bioengineering Keywords: robotic dataset; instrument detection; gesture segmentation; surgical robotics

Online: 1 March 2024 (07:55:59 CET)

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Preprint ARTICLE | doi:10.20944/preprints202406.1725.v1

Ionosonde Measurements Comparison during an ICME- and a SIR/CIR-Driven Geomagnetic Storm over Europe

Kitti Alexandra Berényi, Loredana Perrone, Dario Sabbagh, Alessandro Ippolito, Carlo Scotto, Árpád Kis, Veronika Barta

Subject: Environmental And Earth Sciences, Space And Planetary Science Keywords: space weather; geomagnetic storms; ionosphere; ionospheric storm; ICME; SIR/CIR; ionosonde; Digisonde; rTEC; TIMED/GUVI

Online: 25 June 2024 (07:15:52 CEST)

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Preprint ESSAY | doi:10.20944/preprints201801.0060.v1

Some Potentially Strategic Considerations for the Sex-Bot Industry

Glenn W. Smith

Subject: Social Sciences, Gender And Sexuality Studies Keywords: sexually-enable robot; sex-bot

Online: 8 January 2018 (09:56:06 CET)

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Preprint ARTICLE | doi:10.20944/preprints202402.1220.v2

Hydrogen Gas Compression for Efficient Storage: Balancing Energy and Density

Alessandro Franco, Caterina Giovannini

Subject: Engineering, Energy And Fuel Technology Keywords: Hydrogen storage; Gaseous Compression; Multi-Stage Configuration; Energy analysis; Efficiency

Online: 25 April 2024 (10:39:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201703.0113.v1

Limitations and Constraints of Eddy-Current Loss Models for IPM Motors with Fractional-Slot Concentrated Windings

Hui Zhang, Oskar Wallmark

Subject: Engineering, Automotive Engineering Keywords: automotive applications; concentrated windings; eddy current losses; fractional-slot windings; interior permanent-magnet motors

Online: 16 March 2017 (09:02:53 CET)

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Preprint ARTICLE | doi:10.20944/preprints202208.0177.v1

Towards A Model-Based Pattern Language for New Space-Based Systems

Bhushan Lohar, Robert J Cloutier

Subject: Engineering, Control And Systems Engineering Keywords: model-based system engineering (MBSE); model-based systems architecting (MBSA); model-based pattern language (MBPL); system architecture; logical architecture; SysML patterns; pattern library; systems engineering (SE); pattern language; logical decomposition

Online: 9 August 2022 (09:26:54 CEST)

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Preprint REVIEW | doi:10.20944/preprints201808.0355.v1

High-speed Orbital Angular Momentum Multiplexed Free-space Optical communication systems

Zhen Qu, Ivan Djordjevic

Subject: Engineering, Electrical And Electronic Engineering Keywords: Orbital angular momentum; free-space optical communications; turbulence mitigation

Online: 20 August 2018 (12:34:41 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.0708.v1

Industrial Decarbonization through Blended Combustion of Natural Gas and Hydrogen

Alessandro Franco, Michele Rocca

Subject: Engineering, Energy And Fuel Technology Keywords: Blended combustion; Hydrogen-methane mixture; Industrial burners; Thermodynamic analysis; Decarbonization

Online: 9 July 2024 (07:00:15 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202406.1454.v1

Assessment of the potential for sustainable sugarcane production for bioenergy in Angola

Adilson João Matias, Luiz Augusto Horta Nogueira, Eric Alberto Ocampo Batlle

Subject: Engineering, Energy And Fuel Technology Keywords: Angola; Sugarcane; Sustainable land use

Online: 20 June 2024 (15:05:35 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.2279.v1

A New Computer Aided Diagnosis for Breast Cancer Detection of Thermograms using Metaheuristic algorithms and Explainable AI

Dihmani Hanane, Bousselham Abdelmajid, Bouattane Omar

Subject: Computer Science And Mathematics, Other Keywords: breast cancer detection; thermography; XAI; HPSO; HSMO; Feature extraction; feature attribution; multi-objective optimization; continuous; binary; feature selection; hyperparameter tuning

Online: 31 August 2024 (18:19:31 CEST)

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Advances in early detection of Breast cancer and treatment improvements have significant-ly increased survival rates. Traditional screening methods, including mammography, MRI, ultrasound, and biopsies, while effective, often come with high costs and risks. Recently, thermal imaging has gained attention due to its minimal risks compared to mammography, although it is not widely adopted as a primary detection tool since it depends on identifying skin temperature changes and lesions. The advent of machine learning (ML) and deep learning (DL) has enhanced the effectiveness of breast cancer detection and diagnosis using this technology. In this study a novel methodology for developing an interpretable computer-aided diagnosis (CAD) system for breast cancer detection, leveraging explaina-ble Artificial Intelligence (XAI) throughout its various phases. To achieve these goals, we proposed a new multi-objective optimization approach named Hybrid Particle Swarm Optimization algorithm (HPSO) and Hybrid spider Monkey Optimization algorithm (HSMO). These algorithms simultaneously combine the continuous and binary representations of PSO and SMO to effectively manage trade-offs between Accuracy, feature selection and hyperparameter tuning. We evaluate several CAD models and investigate the impact of handcrafted methods such as Local Binary Patterns (LBP), Histogram of Oriented Gradients (HOG), Gabor filters, and edge detection. We further shedding light on the effect of feature selection and optimization on feature attribution and model decision-making processes using the SHapley Additive exPlanations (SHAP) framework, with a particular emphasis on cancer classification using the DMR-IR dataset. The results of our experiments demonstrate in all trials that the performance of the model is improved. Also with HSMO our models achieved a high accuracy of 98.27% and F1- score of 98.15% while selecting only 25.78% of the HOG features. This approach not only boosts the performance of CAD models but also ensures comprehensive interpretability. This method emerges as a promising and transparent tool for early breast cancer diagnosis.

Preprint ARTICLE | doi:10.20944/preprints202408.0356.v1

Dominik Scholtes, Ralf-Kilian Zäh, Benedikt Faupel, Stefan Seelecke, Paul Motzki

Subject: Engineering, Mechanical Engineering Keywords: actuator; joining; sensor; shape memory alloy; welding

Online: 6 August 2024 (10:39:35 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.0520.v1

An Experimental Approach to Improve the Geometric Accuracy of Micro-features Fabricated by Stereolithography (SLA)

Francesco Giovanni Modica, Vito Basile, Irene Fassi

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: Additive Manufacturing; Stereolithography; Surface microtexturing; Micro-features; Micro-pores; Micro porous structures; Surface functionalization; Functionally graded materials.

Online: 8 March 2024 (13:19:53 CET)

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In this paper, we present an experimental procedure to enhance the dimensional accuracy of fabrication via Stereolithography (SLA) of features at the micro-scale. Using a custom benchmark part, deviations in feature dimensions (micro-pores diameters and depths) were detected and measured by confocal microscopy. Samples characterization and experimental observations allowed the identification of inaccuracy sources, mainly due to the laser beam scanning strategy and to the incomplete removal of uncured liquid resin in post-processing (i.e., IPA washing). As a technology baseline, the measured dimensional errors on pores diameters were up to -46%. A compensation method of the nominal laser spot diameter (85m) was defined and implemented resulting in relevant improvements in dimensional accuracy of 9.8% and 11.3% on full-open pores diameter and depth, respectively. Further investigation was performed on a customized test part to adjust the calibration procedure. The measurements revealed that the estimate of the laser beam spot size is 968m. Measurements on micro-pores having different sizes revealed that a constant compensation parameter (i.e., C=85, 96, 120m) is not fully effective at the micro-scale, where average errors still remain at -24%, -18.8%, and -16% for compensations equals to 85, 96 and 120m, respectively. A further experimental campaign allowed the identification of an effective nonlinear compensation law where the compensation parameter depends on the micro-feature size C= f (D). Results show a sharp improvement in dimensional accuracy on micro-pore fabrication, with errors consistently below +8.2%. The proposed compensation method can be extended for the fabrication of any micro-features without restrictions on the specific technology implementation. Concerning the inaccuracy introduced by the laser path, experimentation with a customized part allowed the optimization of the part orientation to reduce the errors and their differences along the X and Y machine axes.

Preprint ARTICLE | doi:10.20944/preprints202309.1584.v1

Bioengineering and Assessment of Antibacterial Potential for Silver Nanoparticles Derived from Synechococcus sp.

Reem Mohammed Alharbi, Neveen Abdel-Raouf, Rania Omar, Sherif Hassan, Khaled N.M. Elsayed, Ibraheem Borie M. Ibraheem

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: Synechococcus; silver nanoparticles; biogenic; antibacterial agents

Online: 25 September 2023 (05:36:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202312.2189.v1

State-Space Modelling and Stability Analysis of Solid-State Transformers for Resilient Distribution Systems

Dillip Kumar Mishra, Mohammad Hossain Abbasi, Mohsen Eskandari, Saroj Paduel, Sourav Kumar Sahoo, Jiangfeng Zhang, Li Li

Subject: Engineering, Electrical And Electronic Engineering Keywords: solid-state transformer; smart grid; stability analysis; state space model; resilience ;

Online: 28 December 2023 (11:23:33 CET)

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