BBC Russian

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202408.0209.v1

Determination of Ethanol Content in Alcoholic Products by LF-NMR

Gianluca Farine, Maria Scilinguo, Chiara Calvagna, Silvia Romano, Marco Polito, Salvatore Sgrò

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: Analytical chemistry; LF-NMR spectroscopy; Gascromatography; ethyl alcohol determination

Online: 3 August 2024 (08:14:32 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202206.0294.v1

Offices after the COVID-19 Pandemic and Changes in Perception of Flexible Office Space

Matus Barath, Dusana Alshatti Schmidt

Subject: Business, Economics And Management, Human Resources And Organizations Keywords: work environment; employers; office space; remote work; COVID-19

Online: 21 June 2022 (10:31:48 CEST)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202407.1026.v1

Nanopore Sequencing Allows Recovery of High-Quality Completely Closed Genomes of All Cronobacter Species From Powdered Infant Formula Overnight Enrichments

Narjol Gonzalez-Escalona, Hee Jin Kwon, Yi Chen

Subject: Biology And Life Sciences, Food Science And Technology Keywords: nanopore sequencing; foodborne pathogen; complete genomes; long read sequencing; Cronobacter; powdered infant formula

Online: 15 July 2024 (11:06:33 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202409.1460.v1

Usage of the Anemia Control Model Is Associated with Reduced Hospitalization Risk in Hemodialysis

Mario Garbelli, Maria Eva Baro Salvador, Abraham Rincon Bello, Diana Samaniego Toro, Francesco Bellocchio, Luca Fumagalli, Milena Chermisi, Christian Apel, Jovana Petrovic, Dana Kendzia, Jasmine Ion Titapiccolo, Julianna Yeung, Carlo Barbieri, Flavio Mari, Len Usvyat, John Larkin, Stefano Stuard, Luca Neri

Subject: Medicine And Pharmacology, Urology And Nephrology Keywords: End Stage Renal Disease (ESRD); anemia management; erythropoiesis stimulating agent (ESA); Artificial Intelligence (AI); Personalized Medicine

Online: 19 September 2024 (03:42:50 CEST)

Show abstract| Download PDF| Share

Introduction. The management of anemia in chronic kidney disease (CKD-An) presents significant challenges for nephrologists due to variable responsiveness to erythropoietin-stimulating agents (ESA), hemoglobin (Hb) cycling, and multiple clinical factors affecting erythropoiesis. The Anemia Control Model (ACM) is a decision support system designed to personalize anemia treatment, which has shown improvements in achieving Hb targets, reducing ESA doses, and maintaining Hb stability. This study aimed at evaluating the association between ACM-guided anemia management with hospitalizations and survival in a large cohort of hemodialysis patients. Methods. This mul-ti-center, retrospective cohort study evaluated adult hemodialysis patients within the European Fresenius Medical Care NephroCare network from 2014 to 2019. Patients treated according to ACM recommendations were compared to those from centers without ACM. Data on demographics, comorbidities, and dialysis treatment were used to compute a propensity score estimating the like-lihood of receiving ACM-guided care. The primary endpoint was hospitalizations during follow-up; the secondary endpoint was survival. A 1:1 propensity score-matched design was used to minimize confounding bias. Results. A total of 20,209 eligible patients were considered (reference group: 17,101; ACM adherent group: 3,108). Before matching, the mean age was 65.3±14.5 years, with 59.2% men. Propensity score matching resulted in two groups of 1,950 patients each. Matched ACM adherent and non-ACM patients showed negligible differences in baseline characteristics. Hospi-talization rates were lower in the ACM group both before matching (71.3 vs. 82.6 per 100 per-son-years, p<0.001) and after matching (74.3 vs. 86.7 per 100 person-years, p<0.001). During fol-low-up, 385 patients died, showing no significant survival benefit for ACM-guided care (hazard ratio = 0.93; p=0.51). Conclusions: ACM-guided anemia management was associated with a sig-nificant reduction in hospitalization risk among hemodialysis patients. These results further support the utility of ACM as a decision support tool enhancing anemia management in clinical practice.

Preprint ARTICLE | doi:10.20944/preprints202309.1002.v5

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

Kabir Umar

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

Online: 21 May 2024 (17:22:12 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202404.1240.v1

Hemodialysis Procedures for Stable Incident and Prevalent Patients to Optimize Hemodynamic Stability, Dialysis Dose, Electrolytes, and Fluid Balance

Stefano Stuard, Christophe Ridel, Mario Cioffi, Alijana Trost-Rupnik, Konstantin Gurevich, Marija Bojic, Yerkebulan Karibayev, Nilufar Mohebbi, Wojciech Marcinkowski, Vlasta Kupres, Jelena Maslovaric, Alon Antebi, Pedro Ponce, Mamdouh Nada, Maria Eva Baro Salvador, Jaroslav Rosenberger, Tomas Jirka, Kira Enden, Volodymyr Novakivskyy, Daniela Voiculescu, Martin Pachmann, Otto Arkossy

Subject: Medicine And Pharmacology, Urology And Nephrology Keywords: Hemodialysis procedures; hemodynamic stability; dialysis dose; dialysis electrolytes balance; dialysis fluid balance

Online: 18 April 2024 (10:04:00 CEST)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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/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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202403.0359.v1

Malaria Vaccine Introduction in Cameroon: Early Results 30 Days into the Rollout

Shalom Tchofke Ndoula, Franck Mboussou, Andreas Ateke Njoh, Raoul Nembot, Simon Franky Baonga, Arnaud Njinkeu, Joseph Biey, Mohamed Kaba, Adidja Amani, Bridget Farham, Jean-Christian Kouontchou, Christian Armel Kouakam, Konstantin Volkmann, Hilaire Dadjo, Phanuel Habimana, Benido Impouma

Subject: Public Health And Healthcare, Public Health And Health Services Keywords: Malaria vaccine; Cameroon; new vaccine introduction; Africa.

Online: 6 March 2024 (12:07:28 CET)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201610.0078.v1

Copernicus Sentinel-2 Calibration and Products Validation Status

Ferran Gascon, Olivier Thépaut, Mathieu Jung, Benjamin Francesconi, Jérôme Louis, Vincent Lonjou, Bruno Lafrance, Stéphane Massera, Angélique Gaudel-Vacaresse, Florie Languille, Bahjat Alhammoud, Françoise Viallefont, Jakub Bieniarz, Bringfried Pflug, Sébastien Clerc, Laëtitia Pessiot, Thierry Trémas, Enrico Cadau, Roberto De Bonis, Claudia Isola, Philippe Martimort, Valérie Fernandez

Subject: Environmental And Earth Sciences, Environmental Science Keywords: calibration; validation; optical; instrument; processing; imagery; spatial; operational

Online: 19 October 2016 (10:59:29 CEST)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202406.0026.v1

Exploring the Project Management Office for Hail Public Construction Projects, Saudi Arabia

Mohammed Alghaseb, Hisham Alali

Subject: Engineering, Architecture, Building And Construction Keywords: PMO models; construction; Vision 2030; Hail; Saudi Arabia

Online: 4 June 2024 (02:53:37 CEST)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202309.1609.v1

Unlocking the Potential: Lucid Dreaming as a Tool for Development and Innovation

Brigitte Holzinger, Severin Ableidinger

Subject: Arts And Humanities, Other Keywords: lucid dreaming practice; creativity; insights; martial arts; sport; interview; qualitative; lucid dreaming

Online: 26 September 2023 (02:52:24 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202407.2013.v1

Application of a Novel Groundwater Storage Analysis Tool to Assess Drought Impacts in a Groundwater-Driven Basin in the Klamath Watershed, Oregon, USA

Daniel Shepard, Norman L Jones, Gustavious P. Williams

Subject: Engineering, Civil Engineering Keywords: drought; climate change; groundwater; remote sensing; machine learning

Online: 25 July 2024 (07:35:19 CEST)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Supplementary Files| Share

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)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202408.2013.v1

On the Ionisation Tolerance of C₂₀ Fullerene in Ground and Excited Electronic States in Planetary Nebulae

SeyedAbdolreza Sadjadi, Quentin Andrew Parker

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: astrochemistry; C₂₀ fullerene; Ionisation; excited state; DFT; planetary nebulae

Online: 28 August 2024 (05:16:53 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202403.1305.v1

Assessment of HVAC Performance and Savings in Office Buildings Using Data-Driven Method

Anatolijs Borodinecs, Arturs Palcikovskis, Andris Krumins, Deniss Zajecs, Kristina Lebedeva

Subject: Engineering, Architecture, Building And Construction Keywords: Building management system; HVAC; energy efficiency; energy savings; optimization; data-driven

Online: 26 March 2024 (02:54:29 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202405.0433.v1

A Novel Algorithm for Classifying Vegetation and Non-Vegetation Using Red Edge Slope Coefficient with Hyperspectral LCTF Imaging

Bayarsaikhan Uudus, Bayartsetseg Oyungerel, Yukihiro Takahashi, Erdenebaatar Dashdondog, Turtogtokh Tumenjargal, Narangarvuu Dashdondog, Qinxue Wang, Hasi Bagan, Begzsuren Tumendemberel

Subject: Environmental And Earth Sciences, Ecology Keywords: Hyperspectral Imaging; Liquid Crystal Tunable Filter; Red Edge Slope Coefficient; Spectral Reflectance; Vegetation Classification; Remote Sensing Algorithms

Online: 8 May 2024 (15:28:55 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints201608.0178.v1

Bias Correction of Chinese Fengyun-3C Microwave Humidity and Temperature Sounder Measurements in Retrieval of Atmospheric Parameters

Qiurui He, Zhenzhan Wang, Jieying He

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: FY-3C/MWHTS; linear regression correction; neural networks correction; one-dimensional variational algorithm; atmospheric temperature and humidity profiles

Online: 19 August 2016 (09:22:31 CEST)

Show abstract| Download PDF| Share

The Microwave Humidity and Temperature sounder (MWHTS) on board the Fengyun (FY)-3C satellite measure the outgoing radiance form the Earth surface and atmospheric constituents. MWHTS makes measurements in the isolated oxygen absorption line near 118 GHz and the vicinity of strong water vapor line around 183 GHz, can provide fine vertical distribution structure of both atmospheric humidity and temperature. However, in order to obtain the accurate soundings of humidity and temperature by the physical retrieval method, bias between the observed radiance and those simulated by radiative transfer model from the background or first guess profiles must be correct. In this study, two bias correction methods are developed through the correlation analysis between MWHTS measurements and air mass identified by the first guess profiles of the physical inversion, one is the linear regression correction (LRC) and the other is neural networks correction (NNC), representing the linear and nonlinear nature between MWHTS measurements and air mass, respectively. Both correction methods have been applied to MWHTS observed brightness temperatures over the geographic area (180° W-180° E, 60° S-60° N). The corrected results are evaluated by the probability density function of the difference between corrected observations and simulated values and the root mean square error (RMSE) with respect to simulated observations. The numerical results show that the NNC method perform better, especially in MWHTS channels 1 and 7-9 whose peak weight function heights are close to the surface. In order to assess the effects of bias correction methods proposed in this study on the retrieval accuracy, a one-dimensional variational system was built and applied to the MWHTS uncorrected and corrected brightness temperatures to estimated atmospheric temperature and humidity profiles, The retrieval results show that the NNC has better performance which is to be expected. An indication of the stability and robustness of NNC method is given which suggests that the NNC method has promising application perspectives in the physical retrieval.

Preprint ARTICLE | doi:10.20944/preprints202408.0961.v1

Research on Short‐Term Forecasting Model of Global Atmospheric Temperature and Wind in the Near Space Based on Deep Learning

Xingxin Sun, Ting Lan, Yi Liu, Chen Zhou, Jian Feng, Huiyun Yang, Yuqiang Zhang, Zhou Chen, Tong Xu, Zhong-Xin Deng, Zhengyu Zhao

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: Global atmospheric temperature and wind in the near space; ConvGRU; ConvLSTM; MERRA‐2 reanalysis dataset

Online: 13 August 2024 (14:41:57 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202402.0027.v1

CRISPR-Cas Associated Cells and Animal Mediated Biomedical Modelling

Taha Nazir, Hameed A. Mirza, Nida Rao

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: CRISPR-Cas System; Genome engineering; Biomedicine; Human disease; Animal models

Online: 2 February 2024 (06:37:12 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202402.0543.v1

Random Forest Classifier for Cloud Clearing of the Operational TROPOMI XCH4 Product

Tobias Borsdorff, Mari Carmen Martinez-Velarte, Maarten Sneep, Mark ter Linden, Jochen Landgraf

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: TROPOMI; CH4; SUOMI NPP; VIIRS; CLOUDS; Machine Learning; Random Forest Classifier

Online: 9 February 2024 (10:52:15 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202402.1382.v2

Acoustic Characterization of Potential Quiet Areas in Dortmund, Germany

Bryce T. Lawrence, Andreas Frücht, Damian Heying, Kai Schröer, Dietwald Gruehn

Subject: Social Sciences, Geography, Planning And Development Keywords: Noise Action Plan; Noise Mapping; Quiet Areas; Biophony Mapping; Diel Patterns; Noise Hot Spot; Multiple Decision Criteria Assessment; Linear Combination Suitability Mapping

Online: 11 March 2024 (13:17:11 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202407.2539.v1

Corrections of the Distribution of Nuclei Due to Neutron Degeneracy and Their Effects in the R-Process in Neutron Stars - Black Hole Mergers

Rita K. Y. Lau

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: nuclear astrophysics; nuclear reactions; neutron stars; black holes

Online: 31 July 2024 (14:04:38 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202406.0461.v1

Variations of VEGFR2 Chemical Space: Stimulator and Inhibitory Peptides

Claudiu N. Lungu, Ionel Mangalagiu, Gabriela Gurau, Mihaela Cezarina Hîncu

Subject: Medicine And Pharmacology, Cardiac And Cardiovascular Systems Keywords: peripheral artery disease; molecular modeling; docking; angiogenesis; vascular morphogenesis; chimeric protein

Online: 7 June 2024 (07:32:42 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202407.2285.v1

Comparative Study on the Interest of NURBS Representation Versus Polynomial Surface Description in Freeform TMA

Clément Freslier, Guillaume Druart, Alice Fontbonne, Thierry Lepine, Christophe Buisset, Tibor Agocs, Arnaud Hélière, Fanny Keller, Jean-Baptiste Volatier, Stéphane Beaussier, Paul Jougla

Subject: Physical Sciences, Optics And Photonics Keywords: optimization; freeform; NURBS; differential ray tracer; XY polynomials; TMA

Online: 29 July 2024 (10:14:59 CEST)

Show abstract| Download PDF| Share

Preprint CONCEPT PAPER | doi:10.20944/preprints202409.1063.v1

Fractal Calculus Facilitates Rethinking 'Hard Problems'; A New Research Paradigm

BRUCE West

Subject: Biology And Life Sciences, Other Keywords: Fractal Paradigm; fractal calculus; heart rate variability (HRV); Levy statistics; control hypothesis; sinoatrial node control

Online: 13 September 2024 (08:24:23 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202407.1913.v1

Polar AUV Challenges and Applications: A Review

Shuangshuang Fan, Neil Bose, Zeming Liang

Subject: Engineering, Marine Engineering Keywords: polar AUVs; technological challenges; deployments and applications; Arctic and Antarctic

Online: 24 July 2024 (08:27:05 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202309.1531.v1

Malicious Office Macros Detection: Combined Features with Obfuscation and Suspicious Keywords

Xiang Chen, Wenbo Wang, Weitao Han

Subject: Computer Science And Mathematics, Security Systems Keywords: malicious document; VBA; macro; obfuscation; suspicious keywords; machine learning

Online: 22 September 2023 (09:12:01 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202407.0035.v1

Strip Adjustment of Multi-Temporal LiDAR Data - A Case Study at the Pielach River

Michael H. Wimmer, Gottfried Mandlburger, Camillo Ressl, Norbert Pfeifer

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: LiDAR; strip adjustment; multi-temporal; ALS; time series; orientation

Online: 1 July 2024 (08:11:57 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202404.1215.v1

Evaluating the VIIRS Imagery for Developing Near Real-Time Nationwide Vegetation Cover Monitoring in Indonesia

Yudi Setiawan, Kustiyo Kustiyo, Sahid Agustian Hudjimartsu, Judin Purwanto, Riva Rovani, Anna Tosiani, Basyiruddin Usman, Tatik Kartika, Novie Indriasari, Lilik Budi Prasetyo, Belinda Arunarwati Margono

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: change detection; temporal vegetation dynamics; open area index; multi temporal VIIRS

Online: 18 April 2024 (10:57:27 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202404.0122.v1

Landau Tidal Damping and Major-Body Clustering in Solar and Extrasolar Subsystems

Dimitris M. Christodoulou, Demosthenes Kazanas

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Dynamical evolution of planets and satellites; Extrasolar planets; Gravitation; Landau damping; Mean tidal field

Online: 2 April 2024 (09:18:05 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202408.1914.v1

Estimates for Certain Rough Multiple Singular Integrals on Triebel-Lizorkin Space

Hussain Al-Qassem, Mohammed Ali

Subject: Computer Science And Mathematics, Analysis Keywords: Triebel-Lizorkin space; singular integrals; Rough kernels; product spaces

Online: 27 August 2024 (17:06:35 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202406.1593.v1

Evolution of Dew and Rain Water Resources in Gujarat (India) between 2005 and 2021

Rupal Budhbhatti, Anil Roy, Marc Muselli, Daniel Beysens

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: Water resources; dew and rain increase; dew/rain ratio; dew/rain correlation; dew/rain mapping; Gujarat (India); climate change.

Online: 24 June 2024 (11:36:33 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202402.1670.v1

Understanding Microplastics Retention Efficiency and Sorption Dynamics in Porous Media

Hande Okutan, Çağdaş Sağır, Bedri Kurtuluş, Hasan Burak Özmen, Emrah Pekkan, Moumtaz Razack, Philippe Le Coustumer

Subject: Environmental And Earth Sciences, Environmental Science Keywords: microplastics; porous media; retention; transport; polyethylene; retention efficiency; numerical model; MT3DMS; MODFLOW

Online: 29 February 2024 (11:41:01 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints201608.0002.v1

Results of Long-Duration Simulation of Distant Retrograde Orbits

Gary Turner

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Distant Retrograde Orbit; DRO; orbits–stability; radiation pressure; orbits–resonance; dynamics

Online: 1 August 2016 (09:00:06 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202402.0697.v1

Quantifying Inhaled Concentrations of Particulate Matter, Carbon Dioxide, Nitrogen Dioxide, and Nitric Oxide Using Observed Biometric Responses with Machine Learning

Shisir Ruwali, Shawhin Talebi, Bharana Fernando, Lakitha O. H. Wijeratne, John Waczak, Prabuddha Madusanka Hathurusinghe Dewage, David J. Lary, John Sadler, Tatiana Lary, Matthew Lary, Adam Aker

Subject: Public Health And Healthcare, Public, Environmental And Occupational Health Keywords: Autonomic Response; Exposome; Micoenvironment; Air Quality; Biometric Observations; Machine Learning; Particulate Matter; CO2; NO2; NO

Online: 14 February 2024 (03:38:19 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202110.0201.v1

Cost Modelling from the Contractor Perspective: Application to Residential and Office Buildings

Francisco Pereira Monteiro, Vitor Sousa, Inês Meireles, Carlos Oliveira Cruz

Subject: Engineering, Civil Engineering Keywords: cost estimation; cost deviation; financial crisis; promotor-contractor; statistical modelling

Online: 13 October 2021 (12:48:56 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0414.v2

All-Cause Mortality According to COVID-19 Vaccination Status: an analysis of the UK Office for National Statistics Public Data

Marco Alessandria, Giovanni Malatesta, Giovanni Di Palmo, Marco Cosentino, Alberto Donzelli

Subject: Medicine And Pharmacology, Epidemiology And Infectious Diseases Keywords: COVID-19; COVID-19 vaccinations; all-cause mortality; Standardized Mortality Ratio

Online: 17 June 2024 (07:57:23 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0162.v2

The Interference of Light As Photon Pair Interaction Mediated by Matter Under the Assumption of Alternative (“Classical”) Photon Paths in Multi-path Experiments

Wolfgang Tiefenbrunner

Subject: Physical Sciences, Quantum Science And Technology Keywords: double-slit experiment; multi-path experiment; Einstein's radiation laws; photon, light interference; Copenhagen interpretation

Online: 5 March 2024 (10:24:10 CET)

Show abstract| Download PDF| Share

Light can interfere like a wave in a multi-path experiment, but it also has particle properties when interacting with matter. In a closer look, the interference pattern is created by many individual detections ("clicks"), which do not all occur simultaneously. An established assumption is therefore that a single light particle is capable of interfering with itself by superimposing all possibilities to get from the source to the detector. This is in stark contrast to our experience with macroscopic objects, which always "decide" in favour of only one of the alternative paths.In 2010, Jin et al. (Ref. 15) described an event-based model which allowed the authors to show that an interference pattern consisting of clicks can arise in a multi-path experiment even if photons, like macroscopic objects, only follow one path. To do this, photons must be able to transmit the information about their travelling duration to the detector and the detector must have a basic memory. A threshold function uses the message of several light quanta to decide whether a single detection is initiated, which is not the evidence for a single photon. In this "proof of principle", the authors do not claim that the detector function is a realistic one.In the present paper, this detector is replaced by a material consisting of ionizable molecules whose interaction with light takes place according to a modified version of Einstein's radiation laws. Based on this, a photon pair interaction mediated by matter takes place, which in a multi-path experiment generates an interference pattern of clicks at the detector, even if an arbitrary amount of time elapses between the individual detections. In the present model an interference pattern with minima that have less than half the intensity of the maxima is the result of a peculiar behaviour of the detector: In this case, the entirety of its electrons must be described as a unit (a “field”) with many equidistant energy levels. The results of a simulation are presented which enable the model to be tested in experiments.

Preprint ARTICLE | doi:10.20944/preprints202402.1275.v1

The Interference of Light as Photon Pair Interaction Mediated by Matter under the Assumption of Alternative („classical”) Photon Paths in Multi-path Experiments

Wolfgang Tiefenbrunner

Subject: Physical Sciences, Quantum Science And Technology Keywords: double-slit experiment; multi-path experiment; Einstein's radiation laws; photon; light interference; Copenhagen interpretation

Online: 22 February 2024 (07:49:58 CET)

Show abstract| Download PDF| Supplementary Files| Share

Light can interfere like a wave in a multi-path experiment, but it also has particle properties when interacting with matter. In a closer look, the interference pattern is created by many individual detections ("clicks"), which do not all occur simultaneously. An established assumption is therefore that a single light particle is capable of interfering with itself by superimposing all possibilities to get from the source to the detector. This is in stark contrast to our experience with macroscopic objects, which always "decide" in favour of only one of the alternative paths.In 2010, Jin et al. (Ref. 15) described an event-based model which allowed the authors to show that an interference pattern consisting of clicks can arise in a multi-path experiment even if photons, like macroscopic objects, only follow one path. To do this, photons must be able to transmit the information about their travelling duration to the detector and the detector must have a basic memory. A threshold function uses the message of several light quanta to decide whether a single detection is initiated, which is not the evidence for a single photon. In this "proof of principle", the authors do not claim that the detector function is a realistic one.In the present paper, this detector is replaced by a material consisting of ionizable molecules whose interaction with light takes place according to a modified version of Einstein's radiation laws. Based on this, a photon pair interaction mediated by matter takes place, which in a multi-path experiment generates an interference pattern of clicks at the detector, even if an arbitrary amount of time elapses between the individual detections. In the present model an interference pattern with minima that have less than half the intensity of the maxima is the result of a peculiar behaviour of the detector: In this case, the entirety of its electrons must be described as a unit (a “field”) with many equidistant energy levels. The results of a simulation are presented which enable the model to be tested in experiments.

Preprint REVIEW | doi:10.20944/preprints202208.0347.v1

The Uncertainty Principle and the Minimal Space-Time Length Element

David Escors, And Grazyna Kochan

Subject: Physical Sciences, Quantum Science And Technology Keywords: General relativity; uncertainty principle; geodesics; black hole singularity; quantum gravity; Planck star; Lorentz invariance violations.

Online: 18 August 2022 (11:06:06 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202403.1861.v1

Stability Analysis and Dynamic Simulations for Gravity Gradient of a Large Rigid Space Structure

Chenglei Tang, Jialiang Sun, Dongping Jin

Subject: Engineering, Aerospace Engineering Keywords: Stability analysis; Gravity gradient; Large rigid space structure; Orbit dynamics; Natural coordinate formulation

Online: 29 March 2024 (13:45:30 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202406.0082.v2

A Field-Theory Approach for Modeling Dissipative Relativistic Fluids

Nils Andersson, Thomas Celora, Gregory Comer, Ian Hawke

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: relativistic fluids; dissipation; field theory

Online: 16 July 2024 (05:26:47 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202405.0755.v1

Combined Response of Ocular Cyclotorsion and Head Tilt during Body Tilt

Se Joon Woo, Sang-Ho Hwang, Ki Young Chung, Hee Kyung Yang, Sang Beom Han, Jeong-Min Hwang

Subject: Biology And Life Sciences, Life Sciences Keywords: cyclotorsion; tilt; vestibulo-ocular reflex; cervico-ocular reflex; optokinetic reflex

Online: 13 May 2024 (12:15:38 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Working Paper ARTICLE

Office Building Tenants’ Electricity Use Model for Building Performance Simulations

Andrea Ferrantelli, Helena Kuivjõgi, Jarek Kurnitski, Martin Thalfeldt

Subject: Engineering, Automotive Engineering Keywords: building simulation; office buildings; energy performance; energy modelling; HVAC; analytical modelling; statistical analysis

Online: 1 October 2020 (15:40:25 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201908.0285.v1

The Detection of Pre-Diabetic Patients in the Dental Office

Hamda AlMesmar, Shiamaa AlMashhadani, Nadia Saleh, Khaled Farghali

Subject: Medicine And Pharmacology, Dentistry And Oral Surgery Keywords: oral health , pre-diabetic, diabetic, oral systemic, screening, H1A1c, Findrisk , periodontal

Online: 27 August 2019 (11:58:44 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202407.1751.v1

CP Violation: Differing Binding Energy Levels of Quarks and Antiquarks, and their Transitions in Λ-baryons and B-mesons

Dimitris M Christodoulou, Demosthenes Kazanas

Subject: Physical Sciences, Particle And Field Physics Keywords: CP Violation; Flavor Symmetries; Properties of Hadrons; Quark Masses; Quark-Gluon Plasma

Online: 22 July 2024 (14:44:53 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202211.0197.v1

Food Literacy and Dietary Intake in German Office Workers: A Longitudinal Intervention Study

Svenja Meyn, Simon Blaschke, Filip Mess

Subject: Social Sciences, Education Keywords: health literacy; food literacy; dietary intake; nutrition; office workers; health promotion

Online: 10 November 2022 (10:14:31 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201811.0290.v1

Effects of Warming Climate on Overheating and Energy Use in Urban Office Buildings

Tanvir Morshed, Monjur Mourshed

Subject: Engineering, Architecture, Building And Construction Keywords: climatic change; office buildings; overheating; carbon emissions; energy consumption; mixed-mode ventilation; natural ventilation

Online: 13 November 2018 (04:15:59 CET)

Show abstract| Download PDF| Share

Preprint HYPOTHESIS | doi:10.20944/preprints202402.1074.v1

A New Theory of Tree Sap Flow

András Török, Domokos Máthé, Imre Hegedus

Subject: Biology And Life Sciences, Forestry Keywords: plant water transport, suction-pressure pipe, pulsating system, different time-phase cycle, aquaporin

Online: 19 February 2024 (16:46:00 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201608.0069.v1

Comparison of Pixel- and Object-Based Approaches in Phenology-Based Rubber Plantation Mapping in Fragmented Landscapes

Deli Zhai, Jinwei Dong, Georg Cadisch, Mingcheng Wang, Weili Kou, Jianchu Xu, Xiangming Xiao

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Rubber (Hevea brasiliensis) plantation; phenology; Xishuangbanna; Landsat; object-based approach; pixel-based approach

Online: 6 August 2016 (11:54:28 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202404.1554.v1

Exogenous Cytokinin 4-PU-30 Modulates the Response of Wheat and Einkorn Seedlings to UV-B Radiation

Elisaveta Kirova, Irina Moskova, Vasilissa Manova, Yana Koycheva, Zoia Tsekova, Denitsa Borisova, Hristo Nikolov, Ventzeslav Dimitrov, Iskren Sergiev, Konstantina Kocheva

Subject: Biology And Life Sciences, Plant Sciences Keywords: antioxidant gene expression; flavonoids; oxidative stress; phenolic compounds; phenylurea-cytokinin; proline; remote sensing; ROS; spectral reflectance

Online: 24 April 2024 (08:58:18 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202312.0013.v1

On the Asymptotic of Solutions of Odd Order Two-Term Differential Equations

Yaudat T. Sultanaev, Nur F. Valeev, Elvira A. Nazirova

Subject: Computer Science And Mathematics, Mathematics Keywords: asymptotic methods; oscillating coefficients; singular differential equations; Campbell’ s identity

Online: 1 December 2023 (03:14:02 CET)

Show abstract| Download PDF| Share

Preprint COMMUNICATION | doi:10.20944/preprints202305.1495.v1

Reduced Rumen Methane Eructation in Smallholder Cattle and Buffalo by Dietary Supplementation with a Plant Tannins and Citral Extract

Peter Andrew Windsor, Julian Hill, Daniel Olsson, Alex Cameron, Susan Martin

Subject: Biology And Life Sciences, Animal Science, Veterinary Science And Zoology Keywords: greenhouse gas emissions; methane abatement; Asiatic swamp buffalo (Bubalus bubalis), dairy; beef; concentrate supplement; tannins

Online: 22 May 2023 (10:05:32 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202404.0146.v1

Bayesian Inference for Multiple Datasets

Renata Retkute, William Thurston, Christopher A. Gilligan

Subject: Computer Science And Mathematics, Probability And Statistics Keywords: parameter estimation; adaptive multiple importance sampling; effective sample size; wind direction; pest invasion

Online: 2 April 2024 (07:17:01 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202409.1350.v1

Comparation of CALPUFF and CFD Modeling of Toxic Gas Dispersion in Mountainous Environments

Mei Li, ChoHo Lo, Dongou Yang, Yuanchen Li, Zhe Li

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: Mountainous Environment; High Sulphur Gas; CALPUFF; CFD; Atmospheric Dispersion Model

Online: 18 September 2024 (12:11:14 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202307.0505.v1

Microbreak Exercise Interventions on Middle-Aged Office Workers: A Systematic Review

Irene Drizi, Maria Moutzouri, Panayota Sourtzi, Vasiliki Sakellari

Subject: Public Health And Healthcare, Public, Environmental And Occupational Health Keywords: exercise microbreaks; office workers; middle-aged; musculoskeletal disorders; workplace

Online: 7 July 2023 (15:47:26 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint CASE REPORT | doi:10.20944/preprints202403.1325.v2

Deep Learning-based Approach for Optimizing Urban Commercial Space Expansion Using Artificial Neural Networks

Dawei Yang, Jiahui Zhao, Ping Xu

Subject: Business, Economics And Management, Economics Keywords: Commercial space; Points of interest; Deep learning; BP Neural Network

Online: 7 April 2024 (13:58:27 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202408.1675.v1

Emotional Agility and Social Intelligence: Unravelling Entrepreneurs’ Behavior in Omani SMEs

Abdullah M. Al-Ansi, Mohammed Jaboob, Ali Said Jaboob, Ali Mohsin Salim Ba Awain

Subject: Business, Economics And Management, Business And Management Keywords: Emotional Agility; Social Intelligence; Openness to experience; Thriving at workplace; SMEs; Omani Entrepreneurs

Online: 23 August 2024 (08:37:37 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202403.1570.v1

Comparative Analysis of Biofilm Removal Efficiency and Tooth Wear between Mechanical Electric and Bioelectric Devices

Jihyun Lee, Hyun M. Park, Young Wook Kim

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: Bioelectric effect; oral health; plaque formation; plaque removal; tooth wear; gingival index

Online: 26 March 2024 (10:28:34 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201712.0090.v1

Analyze PFG Anomalous Diffusion via Real Space and Phase Space Approaches

Guoxing Lin

Subject: Computer Science And Mathematics, Probability And Statistics Keywords: PFG anomalous diffusion; fractional derivative; NMR; MRI

Online: 14 December 2017 (11:27:15 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202404.0003.v1

A Comparative Analysis of Naïve Exosomes and Enhanced Exosomes with a Focus on the Treatment Potential in Ovarian Disorders

Mohammad Mousaei Ghasroldasht, Farzana Liakath Ali, Hang-Soo Park, Morteza Hadizadeh, Shao Huan Samuel Weng, Allen Huff, Somayeh Vafaei, Ayman Al-Hendy

Subject: Biology And Life Sciences, Other Keywords: enhanced exosomes; ovarian cancer; polycystic ovary syndrome; poor ovarian reserve; premature ovarian insufficiency

Online: 1 April 2024 (09:53:22 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202106.0324.v1

Assessment of Air Quality Perception and Its Effects on Users’ Thermal Comfort in Office Buildings

Candi Citadini de Oliveira, Ricardo Forgiarini Rupp, Enedir Ghisi

Subject: Engineering, Architecture, Building And Construction Keywords: air quality; carbon dioxide (CO2); thermal comfort; office buildings; mixed-mode buildings.

Online: 11 June 2021 (14:55:27 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202407.1155.v1

Belgrade’s Sustainable Transition: Reflections by Urban Planners on Change in Planning Urban Green Space

Sladana Milovanovic, Ivan Cvitković, Katarina Stojanović, Ante Klečina

Subject: Engineering, Architecture, Building And Construction Keywords: urban green space; urban planner; urban governance; sustainable transition; Belgrade

Online: 15 July 2024 (12:09:04 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202402.0706.v1

A Comparison of the Attractiveness of Grape Juice after Different Fermentation Times for Drosophila suzukii and D. simulans in a Field Experiment

Irmgard Tiefenbrunner, Wolfgang Tiefenbrunner

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: Drosophila suzukii; Drosophila simulans; Saccharomyces cerevisiae; Pinot Blanc; grape juice; fermentation; attractant liquid; attractant trap

Online: 13 February 2024 (08:17:01 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202408.0212.v1

Cross-Sectional Study of the Fad Diet among Office Workers in Mongolia

Narkhajid Davaanyam, Bata Róbert

Subject: Public Health And Healthcare, Other Keywords: fad diet; diet

Online: 3 August 2024 (08:33:22 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202311.0511.v2

Improving Eating Habits at the Office: An Umbrella Review of Nutritional Interventions

Aleksandra Hyży, Mariusz Jaworski, Ilona Cieślak, Joanna Gotlib, Mariusz Panczyk

Subject: Public Health And Healthcare, Public, Environmental And Occupational Health Keywords: workplace nutrition; behavioral interventions; cognitive interventions; employee well-being; organizational productivity

Online: 12 December 2023 (03:43:38 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints201609.0055.v1

Cultural Heritage Sites in Danger—Towards Automatic Damage Detection from Space

Daniele Cerra, Simon Plank, Vasiliki Lysandrou, Jiaojiao Tian

Subject: Arts And Humanities, Archaeology Keywords: change detection; Cultural Heritage; texture analysis

Online: 18 September 2016 (08:38:10 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202404.0057.v1

Numerical Analysis of the Influence of Typical Perturbation Forces on LEO Satellites Orbit Prediction at Different Altitudes

Yang Zhang, Shengmao He, Chao Peng, Yuchang Xu, Deyong Xian, Ran Li, Guang Yang, Hong Yuan

Subject: Engineering, Aerospace Engineering Keywords: LEO constellations; Perturbation force; Gravitational field order; orbit prediction; Atmospheric density model

Online: 1 April 2024 (13:30:31 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202403.0117.v2

Emergence of Time from Primordial Space and Expansion of Space with Time

Eckhard Rebhan

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: space-time; generic space expansion; emergence of time; dark energy; quantum grav-ity; Wheeler-de Witt-equation; volume quantisation; friction by information transfer; information quantum

Online: 28 May 2024 (14:26:25 CEST)

Show abstract| Download PDF| Share

A model of space-time is presented, whose origin is set before the appearance of any universe. It uses concepts of previous work, a central one being that the information about the laws of nature is stored locally everywhere in space such that all physical processes obey them. Since information storage is bound to matter or energy, space is assumed to consist of dark energy (DE), which thus assumes an importance far beyond its function as a stopgap for an energy deficit in our universe ( U ). The primordial state (PS) is a timeless and relatively large space of 3 dimensions described by a Wheeler DeWitt (WDW) equation, whose solution is interpreted as an arrangement of very many space quanta and possesses properties that remind of the time-honored concept of the unmoved mover. The comparison of WDW solutions belonging to different mass densities of the DE favors one in which the space quanta are mini black holes. This allows the space quanta to be imagined as mass points which are kept at a distance compatible with the quantum volume by the Pauli principle or something equivalent. Triggered by a dramatic increase in probability, the PS is followed by a time-controlled sequence of quantized expansion states (ES i ). The concomitant emergence of time occurs in a lightning huge crash, consuming almost all DE of the PS. The subsequent quantized ES i emerge from a WDW equation, novelly derived from a solution of the modified cosmic momentum equation, which classically describes an exponential space expansion (CS). The huge volme of the ES i is also used as size of the PS. Information is assumed to be geometrically stored in arrangements of space quanta similar to how genetic information is stored in DNA molecules. During the CS information must be transferred from already existing "information quanta" to new ones. This requires time, slows down the expansion and is taken into account by a friction term in the cosmological momentum equation thus modified. Since the Friedmann-Lemaître (FL) equation remains fully valid, the model is widely based on recognized equations, so that some results may be understood as interpretations.

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)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202407.0927.v2

Changes in Soil Organic Matter Associated with Land Use of Arenosols from Southern Botswana

Donald Kgathi, Mogodisheng Sekhwela, Gonzalo Almendros

Subject: Environmental And Earth Sciences, Soil Science Keywords: arenosols; C sequestration; humic acid; Kalahari sands; organic matter

Online: 30 July 2024 (08:54:40 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202406.1197.v1

Preparation and Characterization of a Novel Hydroxyapatite-Capsaicin Composite Intended for the In-Office Dental Bleaching Use

Karine Letícia da Silva, Diego Hortkoff, Michael William Favoreto, Marcia Rezende, Jessica Mendes Nadal, Ana Armas-Vega, Alessandro D. Loguercio, Paulo Vitor Farago

Subject: Medicine And Pharmacology, Dentistry And Oral Surgery Keywords: dental enamel permeability; tooth bleaching; hydrogen peroxide; tooth sensitivity; TRPA-1 receptors.

Online: 18 June 2024 (09:33:23 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.1808.v1

Multi-sensor Based Occupancy Prediction in a Multi-zone Office Building with Transformer

Irfan Qaisar, Kailai Sun, Qianchuan Zhao, Tian Xing, Hu Yan

Subject: Engineering, Architecture, Building And Construction Keywords: Occupancy prediction; Deep learning; Multi-sensor fusion; Transformer

Online: 26 June 2023 (11:50:04 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201805.0161.v1

A Case Study of Smart Grid Station in Guri Branch Office of KEPCO

Jaehong Whang, Woohyun Hwang, Yeuntae Yoo, Gilsoo Jang

Subject: Engineering, Energy And Fuel Technology Keywords: smart grid; Smart Grid Station; renewable energy sources; energy management system

Online: 10 May 2018 (08:47:19 CEST)

Show abstract| Download PDF| Share

Search Results

38260 articles found