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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/preprints202308.1061.v1

Spatiotemporal Analysis and Multifactor Driving Mechanisms of Urban Blue Space in Beijing Using Remote Sensing

Ya Chen, Weina Zhen, Yu Li, Ninghui Zhang, Yishao Shi, Donghui Shi

Subject: Environmental And Earth Sciences, Water Science And Technology Keywords: urban blue space; spatio-temporal analysis; mechanism simulation; landscape analysis

Online: 15 August 2023 (03:02:23 CEST)

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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)

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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)

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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 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/preprints202403.0825.v1

Revitalising the Coastal Landscape of Qatar: The Urban Renewal Approach in Westbay

Shikha Patel, Deepthi John, Raffaello Furlan, Deepthi John

Subject: Engineering, Architecture, Building And Construction Keywords: coastal land reclamation; urban planning; urban policy; assessment framework; sustainable development; sustainability indicators.

Online: 14 March 2024 (05:58:15 CET)

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Preprint ARTICLE | doi:10.20944/preprints202404.1023.v1

A Contribution to the Integration of International, National and Local Cultural Heritage Protection through a Multilevel Approach to Planning: A Case Study of the Djerdap Area

Ana Niković, Božidar Manić, Nataša Čolić Marković, Nikola Krunić

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Djerdap; Danube; spatial plan; protected area; cultural heritage; multilevel approach

Online: 16 April 2024 (10:27:34 CEST)

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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)

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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 COMMUNICATION | doi:10.20944/preprints202404.0419.v1

Internal Details Corroborate the Occurrence of Flower Bud in the Lower Cretaceous of China

Weijia Huang, Xin Wang

Subject: Biology And Life Sciences, Plant Sciences Keywords: fossil; Lower Cretaceous; China; angiosperms; flower; bud

Online: 5 April 2024 (11:00:01 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 ARTICLE | doi:10.20944/preprints202405.2111.v1

Characteristics and Influencing Factors of Landscape Pattern Gradient Transformation of Small-Scale Agroforestry Patches (SAP) in Mountain Cities

Canhui Cheng, Zhong Xing, Lin Ye, Junyue Yang, Zhuoming Xie

Subject: Environmental And Earth Sciences, Ecology Keywords: mountain cities; small-scale agroforestry patches; urban-rural gradient; landscape pattern; woodland patches; cultivated land patches; garden land patches; influencing factors

Online: 31 May 2024 (09:10:12 CEST)

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Questions：SAP in mountainous cities of China serve as crucial carriers for species and wild food, constituting potential green infrastructure. These patches should be recognized as locally specific resources. This study investigates the transformation characteristics of the landscape patterns of SAP, along with their elements, across urban-rural gradients, providing foundational support for the planning of conservation and utilization strategies. Location: Yongchuan area of Chongqing in southwest China. Methods: The study investigated urban-rural gradient-based transformation of SAP. A four-direction transect space was selected and divided into uniform sample squares. Fragstats 4.3 calculated the landscape index of SAP, and Spearman correlation coefficients in SPSS were used to evaluate the influence of landform and artificial factors on agroforestry patch transformation. Results: 1) Patch area (PA), Plaque density (PD), and CLUMPY of SAP systematically transform, showing increased SAP areas and higher connectivity with greater distance from the city, resulting in reduced patch fragmentation. However, Edge density (ED) and Largest plaque index (LPI) exhibit irregular transformation patterns. 2) With increased distance from the city, woodland patch area and connectivity increase, leading to decreased fragmentation, dispersal, and lower fractal dimensions. Conversely, Cultivated land follows the opposite trend. garden land patch area, fractal dimension, fragmentation, and dispersal all increase, while connectivity decreases. 3) Landscape pattern transformations of SPA are significantly influenced by artificial factors. Woodland patches are influenced similarly by landform and artificial factors. In contrast, cultivated land and garden land patches are more significantly impacted by artificial factors. Conclusions: SAP exhibit differentiated conservation and utilization measures across urban-rural gradients. Small patches located far from urban centers may benefit from systematic conservation measures to prevent further fragmentation and erosion in peri-urban areas.

Preprint ARTICLE | doi:10.20944/preprints202403.1328.v1

Sustainable Development of Rural Settlements on Stara Planina Mountain in Serbia through Preserving Its Built Heritage

Ana Niković, Božidar Manić

Subject: Environmental And Earth Sciences, Other Keywords: Serbia; Stara Planina Mountain; typical rural settlements; conservation; planning; sustainable development

Online: 21 March 2024 (16:21:59 CET)

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Preprint ARTICLE | doi:10.20944/preprints202403.0766.v1

Assessing Reliability, Resilience and Vulnerability of Water Supply from SuDS

Andrea Sulis, Martina Altana, Gianfranco Sanna

Subject: Engineering, Safety, Risk, Reliability And Quality Keywords: Stormwater flooding; Sustainable Drainage Systems (SuDS); Sustainable city; Urbanization; MODSIM; Supply indicators

Online: 13 March 2024 (07:16:38 CET)

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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 ARTICLE | doi:10.20944/preprints202406.1889.v1

The Correlation between Cycling Infrastructure and the Fatal Accident Rate of Cyclists – Comparison of Slovakia, Poland and the Netherlands

Marian Gogola, Šimon Senko

Subject: Engineering, Civil Engineering Keywords: cycling; traffic accidents; road safety; transport infrastructure; fatalities

Online: 26 June 2024 (14:14:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.1999.v1

Exploring Urban Amenity Accessibility Within Residential Segregation: Evidence from Seoul's Apartment Housing

Gyoungju Lee, Beomsoo Jeong, Seungwook Go

Subject: Social Sciences, Urban Studies And Planning Keywords: Residential segregation; Urban Amenity Accessibility; Segregation index

Online: 30 April 2024 (11:50:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201702.0092.v2

Variability of Darcian Flux in the Hyporheic Zone at a Natural Channel Bend

Shaofeng Xu, Jinxi Song, Weiwei Jiang, Guotao Zhang, Ming Wen, Junlong Zhang, Ying Xue

Subject: Environmental And Earth Sciences, Geophysics And Geology Keywords: hyporheic zone; Darcian flux; channel bend; vertical hydraulic conductivity; stream topography; grain size; porosity

Online: 26 February 2017 (10:07:31 CET)

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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: Physical Sciences, Astronomy And Astrophysics 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 ARTICLE | doi:10.20944/preprints202204.0170.v1

Care Ethics and the Feminist Personalism of Edith Stein

Petr Urban

Subject: Arts And Humanities, Philosophy Keywords: Edith Stein; care ethics; personalism; feminism; empathy; emotions; caring; phenomenology

Online: 18 April 2022 (11:41:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.1494.v1

Experimental Study on Flexural Bearing Capacity of RC Beam after Explosion Based on Piezoelectric Intelligent Aggregate

Kai Xu, Shilong Sheng, Ronghui Jiang, Qian Feng

Subject: Engineering, Civil Engineering Keywords: piezoelectric intelligent aggregate; explosion load; high strength concrete beam; bending resistance; damage monitoring; wavelet packet analysis ;

Online: 19 July 2024 (11:35:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.1585.v1

Development Strategy Based on Combination of Carbon Emission and Vibrancy Typology — a Multi-sourced Data-Driven Approach in Beijing, China

Jingyi Xia, Jiali Wang, Yuan Lai

Subject: Social Sciences, Urban Studies And Planning Keywords: Carbon emissions; Urban vibrancy; Development strategy

Online: 24 May 2024 (10:15:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.1538.v1

Economic Indicator Assessment and Prioritization in Yazd City: A Study of Learning City Development in Iran

Mohammad Hossain Saraei, Shahabadin Hajforoush, Aimal Formolly

Subject: Social Sciences, Geography, Planning And Development Keywords: lifelong learning; economic indicators; learning organization; learning city development; Yazd

Online: 26 March 2024 (10:08:29 CET)

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Preprint ARTICLE | doi:10.20944/preprints202402.1266.v1

Can Short-Term Online-Monitoring Improve the Current WFD Water Quality Assessment Regime? Systematic Resampling of High Resolution Data From Four Saxon Catchments

Jakob Benisch, Björn Helm, Xin Chang, Peter Krebs

Subject: Environmental And Earth Sciences, Water Science And Technology Keywords: Online monitoring, Sampling; Water Framework Directive; Event Analysis; Water Quality; Events

Online: 22 February 2024 (03:36:17 CET)

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The European Union Water Framework Directive (2000/60/EC; WFD) aims to achieve a good ecological and chemical status of all bodies of surface water by 2027. The development of an integrated guidance on surface water chemical monitoring (e.g. WFD Guidance Document No. 7/19) has been transferred into national German law (Ordinance for the Protection of Surface Waters, OGewV). For the majority of compounds, this act requires a monthly sampling frequency to assess the chemical water quality status of a surface water body. To evaluate the representativeness of the sampling strategy under the OGewV, high-frequency online monitoring data is investigated under different sampling scenarios and compared with current, monthly grab sampling strategy. About 23 million data points were analyzed for this study, three chemical parameters (dissolved oxygen, nitrate-nitrogen, chloride concentration) and discharge data were selected from four catchment of different sizes ranging from 51391 km² to 84 km² (Elbe, Vereinigte Mulde, Neiße and two stations at Lockwitzbach). In this paper we proposed short-term online-monitoring (STOM) as a sampling alternative. STOM considers the placement of online sensors over a limited duration and return interval. In general we: (I) compare the results of conventional grab sampling with STOM, (II) investigate the different performance of STOM and grab sampling using discharge data as proxy for analyzing event-mobilized pollutants and (III) investigate the related uncertainties and costs of both sampling methods. Results show, that STOM outperforms grab sampling for parameters where minimum/maximum concentrations are required by law as the probability to catch a single extreme value is higher with STOM. Furthermore, parameters showing a pronounced diurnal pattern, like dissolved oxygen, are also captured considerably better. The performance of STOM showed no substantial improvements for parameters with small concentration variability, as nitrogen-nitrate The analysis of discharge events as a proxy parameter for event-mobilized pollutants proved that the probability of capturing samples during events is significantly increased by STOM.

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/preprints202402.0891.v1

Determinants of College and Graduate Students’ Commute Time to School. Is the Residential Dwelling Type Related to School Commute Time?: The Case of Seoul Metropolitan Area

Saizu Wang, Chang Gyu Choi

Subject: Social Sciences, Urban Studies And Planning Keywords: Commute time to school; Dwelling type; Household travel diary survey; College and graduate students; Multiple linear regression model

Online: 16 February 2024 (07:06:46 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 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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Working Paper ARTICLE

Effects of Temporary Color Steel Buildings on Urban Development and Urban Space Form in China

Shuwen Yang, Haowen Yan, Yikun Li, Yi He

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: color steel buildings; urban space form; high-resolution satellite imagery; Lanzhou

Online: 1 April 2019 (13:56:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.0082.v1

Effects of Nitrogen Application at Different Levels by a Sprinkler Fertigation System on Crop Growth and Nitrogen-Use Efficiency of Winter Wheat in the North China Plain

Keke Wang, Haijun Liu, Zhuangzhuang Gao

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: winter wheat; nitrogen application rates; nitrogen adsorption curve; water and fertilizer use efficiency

Online: 1 April 2024 (12:25:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1136.v1

Circular Maker Cities: Maker space typologies and circular urban design

Reham Elwakil, Ingrid Schroder, Koen Steemers

Subject: Arts And Humanities, Architecture Keywords: maker spaces; circular cities; urban manufacturing; circular economy; reuse; repair; craft; fabricate; distribute.

Online: 18 October 2023 (08:30:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.1710.v1

Beyond Multidimensional Vulnerability Approach: A Triple Network Notion for Urban Cohesion in At-Risk Neighborhoods of Jaen’s Historic Center

Juan L. Rivas-Navarro, Belén Bravo-Rodríguez

Subject: Social Sciences, Urban Studies And Planning Keywords: urban vulnerability; integrated urban regeneration; social cohesion; public space; sustainable planning; urban environment

Online: 28 March 2024 (06:56:42 CET)

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Preprint ARTICLE | doi:10.20944/preprints202409.1187.v1

Brilliant Blue Discoloration by Ozonation. Kinetic Modelling

Crisciu Adrian Victor, Ligia Stoica, Carolina Constantin, Maria Marcvart (Tiron), Anamaria Hanganu, Maria Gratiela Ianos (Craioveanu)

Subject: Environmental And Earth Sciences, Water Science And Technology Keywords: Brilliant Blue; discoloration; ozonation; kinetic modelling

Online: 16 September 2024 (10:15:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0746.v1

Value Extraction and Integrated Utilization of Spatial Assets in Old Communities Regeneration: A Case Study of Central Guangzhou, China

Xiaoyong Yin, Yiming Tang, Lei Yuan, Yongjun Ai, Yan Tang

Subject: Social Sciences, Urban Studies And Planning Keywords: old communities; spatial assets; value extraction; integrated utilization; Guangzhou; China

Online: 10 September 2024 (05:48:58 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/preprints202105.0693.v1

Measuring and Evaluating the Quality of Urban Walkways from the Perspective of the Creative Urban Space

Ameneh Ekrasardashti, Hassan Sajadzadeh, Farshid Aram

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: Urban walkways; Creative city, Urban Space

Online: 28 May 2021 (10:57:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.1080.v1

Energy, Exergetic and Thermoeconomic Analyses of Hydrogen-Fueled 1-kW Proton Exchange Membrane Fuel Cell

Yungpil Yoo, Sang-Yup Lee, Seok-Ho Seo, Si-Doek Oh, Ho-Young Kwak

Subject: Engineering, Energy And Fuel Technology Keywords: Entropy generation rate; Gouy-Stodolar theorem; Proton exchange membrane fuel cell (PEMFC); Lost cost flow rate

Online: 16 May 2024 (10:44:09 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0051.v1

Assessment from Multilevel Mixed-Effects Structural Equation Modelling into Urban Resilience

Chich-Ping Hu

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Multilevel Mixed-Effects Structural Equation Modelling; urban resilience; urban service functions; real estate market; social equity

Online: 2 September 2024 (09:02:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.2120.v1

Assessing the Appropriation of Space in Urban Green Spaces Before the COVID-19 Pandemic: Three Case Studies in Downtown Shanghai

Marcus Vinicius Sant’Anna, Wuzhong Zhou

Subject: Social Sciences, Urban Studies And Planning Keywords: use of space; appropriation of space; behavior mapping; urban green space

Online: 26 September 2024 (14:48:36 CEST)

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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 ARTICLE | doi:10.20944/preprints201807.0144.v1

Extension of Space Syntax Methods to Generic Urban Variables

Roberto D'Autilia, Marco Spada

Subject: Environmental And Earth Sciences, Other Keywords: space syntax; graph theory; city

Online: 9 July 2018 (13:35:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.1598.v1

Determining the Urgency of Greening by Estimating the Amount of Greenery Resources in the Place of Residence

Adam Bielecki, Krzysztof Będkowski

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: greenery; remote sensing; LiDAR; formula

Online: 24 May 2024 (10:17:08 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0026.v1

Propose of Mix Design Method for CO₂ Reduction Concrete Using the Regression Analysis

Tae Hyoung Kim

Subject: Engineering, Civil Engineering Keywords: concrete; sustainability; regression analysis mix design; CO2 emission; cost

Online: 3 August 2016 (06:05:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.2014.v1

The Identification and Characteristics of Korea's Depressed Regions from a Sustainability Perspective

Seung-Seok Han, Jeong-hyeon Choi

Subject: Social Sciences, Geography, Planning And Development Keywords: depressed region; region sustainability; depopulation; spatial analysis; population aging

Online: 28 August 2024 (08:00:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.0602.v1

The Misalignment between the Strategic Asset Allocation and ESG Investment Target of Institutional Investors

Seonghun Min

Subject: Business, Economics And Management, Finance Keywords: ESG Investment; Sustainable Investment; Strategic Asset Allocation; ESG Investment Target; Misalignment

Online: 8 July 2024 (09:49:22 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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Working Paper ARTICLE

Promoting Exercise in Urban Area: Importance of Green Space and Facility Accessibility

John W.M. Yuen, Katherine K.P. Chang, Frances K.Y. Wong, Fiona Y. Wong, Judy J. Siu, H.C. Ho, M.S. Wong, Janice Y.S. Ho, K.L. Chan, Lin Yang

Subject: Environmental And Earth Sciences, Environmental Science Keywords: physical activity; exercise; green cover; open space; Metabolic Equivalent of Task; International Physical Activity Questionnaire; health promotion

Online: 20 March 2019 (10:46:23 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/preprints202409.1700.v1

Ionospheric Absorption Variation Based on Ionosonde and Riometer Data and the NOAA D-RAP Model over Europe During Intense Solar Flares in September, 2017

Veronika Barta, Tamás Bozóki, Dávid Péter Süle, Daniel Kouba, Jens Mielich, Tero Raita, Attila Buzás

Subject: Environmental And Earth Sciences, Space And Planetary Science Keywords: space weather; solar flare; ionosphere; ionospheric absorption; ionosonde data; HF radio wave absorption; radio fade-out; riometer; D-RAP model

Online: 23 September 2024 (12:16:33 CEST)

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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/preprints202311.1683.v1

Participatory Design of Urban Green Space to Improve Residents’ Health

Bram Oosterbroek, Joop De Kraker, Sandra Akkermans, Paola Esser, Pim Martens

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Spatial model; Urban Green Space; Human health; Ecosystem services; Ecosystem disservices; Participatory design, GIS; Quantitative assessment

Online: 27 November 2023 (11:17:02 CET)

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Preprint ARTICLE | doi:10.20944/preprints201607.0091.v1

Quantifying the spatiotemporal patterns of urbanization along urban-rural gradient with a roadscape transect approach: a case study in Shanghai, China

Zhonghao Zhang, Yao-Jen Tu, Xin Li

Subject: Social Sciences, Geography, Planning And Development Keywords: urban-rural gradient; spatiotemporal patterns; landscape metrics; a roadscape transect approach; rapid urbanization; Shanghai

Online: 29 July 2016 (08:06:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1538.v1

System, Life and Modernity: Study on the Design of the Collective Residential Buildings of the People’s Commune in the Early Stage of P.R.C

Fei Yu, Lu Ye, Yi Zhu

Subject: Arts And Humanities, Architecture Keywords: Rural construction; People’ s commune; collective housing; courtyard; sideline

Online: 19 September 2024 (16:47:23 CEST)

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Preprint ESSAY | doi:10.20944/preprints201701.0056.v1

The Implementation of Green Infrastructure: Relating a General Concept to Context and Site

Gunilla Lindholm

Subject: Social Sciences, Urban Studies And Planning Keywords: green infrastructure; sustainable urban development; urban planning; landscape representations

Online: 11 January 2017 (07:44:52 CET)

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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/preprints202403.1525.v1

Can High-Standard Farmland Construction Reduce Carbon Emissions from Agricultural Land Use?—Evidence from China

Fangsheng Liu, Jian Lin

Subject: Social Sciences, Geography, Planning And Development Keywords: High-standard farmland construction(HSFC); Land consolidation; Carbon emissions from agricultural land use (CEALU); Difference-in-difference (DID)

Online: 26 March 2024 (08:36:18 CET)

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Preprint ARTICLE | doi:10.20944/preprints202405.1120.v1

Air Traffic Controllers’ Rostering: Sleep Quality, Vigilance, Mental Workload, and Boredom: A Report of Two Case Studies

Michela Terenzi, Giorgia Tempestini, Francesco Di Nocera

Subject: Social Sciences, Psychology Keywords: fatigue; vigilance; workload; boredom; rostering

Online: 17 May 2024 (07:59:47 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202402.0819.v1

Residents' Travel Choice under Public Health Events and the Optimal Strategies of the Travel Environment for Active Mobility: A Case Study of Harbin, China

Lin Tan, Dewei Fang, Lixuan Zhao, Yang Xue, Shan Sun, Jingxu Lan, Xue Wang

Subject: Social Sciences, Urban Studies And Planning Keywords: Active Mobility; travel environment; satisfaction; gradient boosting decision trees; impact-asymmetry analysis

Online: 14 February 2024 (14:24:29 CET)

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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/preprints202407.1654.v1

Evaluation of Medium-Deep Geothermal Resources Based on Seismic Imaging Technology: A Case Study of the Midu Basin in Yunnan Province

Jie Li, Xuebin Zhang, Chao Xu, Chuan Li, Hui Tan, Ziye Yu, Yunpeng Zhang

Subject: Environmental And Earth Sciences, Geophysics And Geology Keywords: geothermal resources; seismic tomography imaging; velocity ratio; Midu basin; genesis mechanism

Online: 22 July 2024 (09:11:19 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/preprints202308.0968.v1

Waterjet Cutting Vibration Analysis of Difficult to Cut Materials

Michał Leleń, Katarzyna Biruk-Urban, Jerzy Józwik

Subject: Engineering, Mechanical Engineering Keywords: abrasive water-jet cutting; difficult-to-cut materials; vibration measurements

Online: 14 August 2023 (09:18:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0621.v1

Suburban Public Open Space – Types of Gathering and Recreation Places Developed under Mature Urban Planning. A Case Study of Bunnik Commune, the Netherlands

Agnieszka Kępkowicz

Subject: Environmental And Earth Sciences, Other Keywords: Sustainable suburbs; public open space typology; suburban community; livable urban planning; natural, rural and build environment; urban-rural planning

Online: 9 August 2024 (02:49:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.0993.v1

Inclusion of Quillaja Saponin Clarity Q Manages Growth Per-Formance, Immune Response, and Nutrient Transports of Broilers During Subclinical Necrotic Enteritis

Candice E.C. Blue, Nima K. Emami, Mallory B. White, Staci Cantley, Rami A. Dalloul

Subject: Biology And Life Sciences, Animal Science, Veterinary Science And Zoology Keywords: Necrotic enteritis; saponin; chicken; performance; tight junctions

Online: 14 June 2023 (05:36:32 CEST)

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Necrotic enteritis (NE) is an intestinal disease that results in poor performance, inefficient nu-trient absorption, and has a devastating economic impact on poultry production. This study evaluated the effects of a saponin-based product (Clarity Q [CQ]) during a NE challenge. A to-tal of 1,200 male chicks were randomly assigned to four dietary treatments (10 pens/treatment; 30 birds/pen): treatment 1 (NC): a non-medicated corn-soybean basal diet; treatment 2 (PC) NC + 50 g/metric ton (MT) of Bacitracin methylene disalicylate (BMD); treatments 3 (CQ15) and 4 (CQ30) NC + 15 and 30 g/MT, respectively. On day (d) of placement, birds were challenged by a coccidia vaccine to induce NE. On d 8, 14, 28, and 42, performance parameters were measured. On d 8, three birds/pen were necropsied for NE lesions. On d 8 and d 14, jejunum samples from one bird/pen were collected for mRNA abundance of tight junction proteins and nutrient trans-porter genes. Data were analyzed in JMP (JMP Pro, 16) and significance (P ≤ 0.05) between treatments identified by Fisher’s least significant difference (LSD) test. Compared to PC and NC, CQ15 had higher average daily gain (ADG), while CQ30 had lower average daily feed in-take (ADFI) and feed conversion ratio (FCR). NE lesions in the duodenum were lower in CQ15 compared to all other treatments. On d 8, mRNA abundance of CLDN1, CLDN5, AMPK, PepT2, GLUT2, and EAAT3 were significantly greater in CQ30 (P < 0.05) compared to both PC and NC. On d 14, mRNA abundance of ZO2 and PepT2 was significantly lower in PC when compared to all treatments, while that of ANXA1, JAM3, and GLUT5 was comparable to CQ15. In summary, adding Clarity Q to broiler diets has the potential to alleviate adverse effects caused by this enteric disease by improving performance, reducing intestinal lesions, and positively modulating the mRNA abundance of various tight junction proteins and key nutrient transporters during peak NE infection.

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/preprints202310.0946.v1

The Impact of Green Space on Urban Well-Being - A Comprehensive Analysis

ADEOYE OLUGBENGA ADEWOLU

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Green Areas, Urban Environment, Green Spaces, Neighbourhoods, Urban Planning

Online: 16 October 2023 (10:21:10 CEST)

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Preprint CASE REPORT | doi:10.20944/preprints202404.1910.v1

Exploring the Spatio-Temporal Evolutionary Characteristics of Paomo Restaurants in Xi’an’s Central Urban Area Through POI Data Analysis

Dawei Yang, Ping Xu, Xiaojuan Yang

Subject: Social Sciences, Geography, Planning And Development Keywords: POI Data, Paomo Restaurants, Spatio-temporal Evolution Characteristics, Xi'an

Online: 29 April 2024 (10:06:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201703.0056.v1

Ag/MgAl₂O₄nanoparticles Prepared by a Modified Hydrothermal for Photocatalytic Degradation of Methylene Blue

Zhengru Zhu

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Ag/MgAl2O4; characterization; activity; Photocatalytic degradation; Methylene blue

Online: 10 March 2017 (10:37:46 CET)

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Preprint ARTICLE | doi:10.20944/preprints202204.0239.v1

Gray Public Space Under Urban Bridge - A Case Study of Public Arts Space Micro-Transformation Focusing on "Regional Culture" and "Art for All"

Ting Liu Liu, Wu Cao, Yuyi Liu

Subject: Arts And Humanities, Art Keywords: Urban grey space; Space under bridge; Public Art; Micro-transformation; Regional culture; Art for all

Online: 26 April 2022 (10:55:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0323.v1

Molecular Composition of Exogenous Dissolved Organic Matter Regulates Dissimilatory Iron Reduction and Carbon Emissions in Paddy Soil

Haibo Wang, XiPeng Liu, Yuchen Shu, Gang Li, ChengLiang Sun, Davey Jones, YongGuan Zhu, Xianyong Lin

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Greenhouse gas emissions; Biochar; Dissimilatory iron reduction; C sequestration; Organic amendments; Soil microbiome

Online: 4 September 2024 (12:04:52 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.1614.v1

Impacts of Land Use Transition on Ecosystem Services in the Dongting Lake Area

Xuan Shi, Qimeng Ning

Subject: Environmental And Earth Sciences, Sustainable Science And Technology Keywords: ecosystem service; Dongting Lake area; land use transitions; InVEST model; GWR

Online: 1 May 2024 (04:24:11 CEST)

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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/preprints202408.1629.v1

Interstitial N-Doped TiO2 for Photocatalytic Methylene Blue Degradation under Visible Light Irradiation

Dezheng Li, Vilanculo Clesio Calebe, Yuqiao Li, Huimin Liu, Yiming Lei

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: TiO2; nitrogen doping; photocatalytic activity; methylene bule degradation; visible light

Online: 22 August 2024 (08:57:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202406.1121.v1

Monitoring Earthquake Risks in Nador, Northeast Morocco

Mohammed Hlal, Rida Azmi, El Bachir Diop, Meriem Adraoui, Seyid Abdellahi Ebnou Abdem, Imane Serbouti, Mariem Bounabi, Jérôme Chenal

Subject: Environmental And Earth Sciences, Geography Keywords: earthquake; risk management; urban environment; vulnerability; Nador; Morocco

Online: 17 June 2024 (08:39:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202312.1206.v1

A Dynamic Prediction Framework for Vitality of Urban Public Space - From hypothesis to algorithm and verification

Yue Liu, Xiangmin Guo

Subject: Social Sciences, Urban Studies And Planning Keywords: Urban vitality 1; Algorithm 2; Crowd-frequency 3

Online: 15 December 2023 (16:30:37 CET)

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Preprint ARTICLE | doi:10.20944/preprints202402.1335.v1

Facile and economical preparation method of TiO₂/activated carbon for photocatalytic degradation of methylene blue

Phuoc Huu Le, Tran Thi Thuy Vy, Vo Van Thanh, Duong Hoang Hieu, Quang-Thinh Tran, Ngoc-Van Thi Nguyen, Ngo Ngoc Uyen, Nguyen Thi Thu Tram, Nguyen Chi Toan, Ly Tho Xuan, Le Thi Cam Tuyen, Nguyen Trung Kien, Yu-Min Hu, Sheng-Rui Jian

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: TiO₂/activated carbon, mass mixing ratio, photocatalyst, methylene blue.

Online: 23 February 2024 (09:54:38 CET)

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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)

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Preprint ARTICLE | doi:10.20944/preprints202403.0382.v1

Bicarbazole-benzophenone based twisted donor-acceptor derivatives as potential blue emitters for OLEDs

Iram Siddiqui, Prakalp Gautam, Dovydas Blazevicius, Jayakumar Jayakumar, Sushanta Lenka, Daiva Tavgeniene, Ernestas Zaleckas, Jwo-Huei Jou, Saulius Grigalevicius

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: donor-acceptor derivatives; blue organic light emitting diode; high efficiency; blue emission; thermal analysis

Online: 7 March 2024 (09:34:59 CET)

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Preprint ARTICLE | doi:10.20944/preprints202402.1427.v1

Your Favourite Park Is Not My Favourite Park: A Participatory Geographic Information System Approach to Improving Urban Green and Blue Spaces – a Case Study in Edinburgh, Scotland

Charlotte Wendelboe-Nelson, Yiyun Wang, Simon Bell, Craig W McDougall, Catharine Ward Thompson

Subject: Biology And Life Sciences, Behavioral Sciences Keywords: urban green and blue space; community engagement, co-production; public participation; spatial analysis; community health; health & wellbeing

Online: 26 February 2024 (10:51:04 CET)

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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)

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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/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)

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Preprint ARTICLE | doi:10.20944/preprints202201.0417.v1

Space-based Deformation Monitoring of Coastal Urban Areas: The Case of Limassol’s Coastal Front

Kyriaki Fotiou, Dimitris Kakoullis, Marina Pekri, George Melillos, Ramon Brcic, Michael Eineder, Diofantos G. Hadjimitsis, Chris Danezis

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: Deformation Monitoring; Land Subsidence; Coastal Areas; PSI; SAR; Cyprus

Online: 27 January 2022 (11:30:23 CET)

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Preprint ARTICLE | doi:10.20944/preprints202406.1173.v1

Evaluation of GPM IMERG Early, Late, and Final Run in Precipitation Estimation and their Capability in Representing Extreme Rainfall Indices in Southwestern Iran

Mohammad Sadegh Keikhosravi-Kiany, Robert C. Balling Jr

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: Precipitation estimation; Extreme precipitation indices; Southwestern Iran; GPM IMERG

Online: 17 June 2024 (15:46:10 CEST)

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Preprint BRIEF REPORT | doi:10.20944/preprints202405.0979.v1

Multiplicity of Human Scent Signature in Identification of Persons by Computer-Based Olfactronics

Luděk Bouška, Štěpán Urban, Ulrika Mala

Subject: Chemistry And Materials Science, Applied Chemistry Keywords: GCxGC-MS; forensic; olfactronic; scent signature; digital scent sample; identification of persons; chromatogram; multiplicity

Online: 15 May 2024 (10:18:38 CEST)

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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)

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Preprint ARTICLE | doi:10.20944/preprints202405.1756.v1

Designating Airsheds in India for Urban and Regional Air Quality Management

Sarath K Guttikunda

Subject: Environmental And Earth Sciences, Environmental Science Keywords: India; NCAP; Air Quality Management; Airsheds; Regional Air Quality; Urban Air Quality

Online: 28 May 2024 (11:11:50 CEST)

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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)

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Preprint ARTICLE | doi:10.20944/preprints201607.0083.v1

Low Carbon Urban Transitioning in Shenzhen: A Multi-Level Environmental Governance Perspective

Zhanglan Wu, Jie Tang, Dong Wang

Subject: Social Sciences, Political Science Keywords: urban sustainability; environmental governance; energy policy

Online: 27 July 2016 (05:56:56 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.0478.v1

The City and its Stream: Blue Urban Acupuncture as a Method for Neglected Spaces Regeneration in Lebanese Riversides: The Case of Beirut River

Aya Chehab, Baher Farhat

Subject: Environmental And Earth Sciences, Other Keywords: Blue Urban Acupuncture; Aqua-puncture; Neglected Space; Water Quality; Biodiversity; Regeneration

Online: 8 March 2024 (10:32:19 CET)

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Urban rivers and waterfronts play a vital role in the ecological, social, and economic fabric of cities, providing not only aesthetic value but also serving as important ecosystems that contribute to the overall well-being of urban environments. However, many urban rivers, including the Beirut River in Lebanon, face challenges such as pollution, neglect, and the loss of recreational and ecological value due to urbanization and industrialization. According to the Lebanese MOE (Ministry of Environment), almost 70% of Lebanese rivers are polluted due to untreated waste management systems and which leads to undrinkable water and possible flooding disasters if not treated. This study addresses the problem of abandoned and degraded spaces along the Beirut River riverside through the application of urban acupuncture, a strategic approach that targets specific points in the urban environment to stimulate positive change and regeneration. The aim of the study is to assess the effectiveness of implementing small-scale ‘sensitive urban points’ known as urban acupuncture as the method for regenerating the Beirut River riverside, with the hypothesis that targeted interventions through Blue Urban Acupuncture or Aqua-puncture- can lead to significant improvements in the ecological, social, and economic aspects of the area that re-connect the people of Beirut with its river. The methodology involves a multidisciplinary approach that integrates urban design, and community engagement, and analysing similar examples of different approaches through creating a comparative table. Data collection includes environmental assessments of water quality, biodiversity, and ecosystem health, as well as social surveys to understand community needs and perceptions. By applying urban acupuncture principles to the Beirut River riverside, this study seeks to demonstrate how strategic interventions can lead to the regeneration of abandoned spaces, improve the overall quality of the urban environment, and create sustainable and inclusive riverside landscapes that benefit both the environment and the community.

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)

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