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Preprint ARTICLE | doi:10.20944/preprints202311.1392.v1

Deep-Learning-Based Hydrostatic Curve Modeling for Stability Calculation of Chine-Type Small Ships

Dongkeun Lee, Chaeog Lim, Sang-jin Oh, Minjoon Kim, Jun Soo Park, Sung-chul Shin

Subject: Engineering, Marine Engineering Keywords: hull form; deep learning model; hydrostatic curve modelling; small ships

Online: 22 November 2023 (06:31:44 CET)

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Preprint ARTICLE | doi:10.20944/preprints202409.0203.v1

Development of Urban Flood Forecasting System for Dhaka City Using MIKE+

Md Shahadat Hossain, Noshin Saiyara, Tarun Kanti Magumdar, Liton Chandra Mazumder, Shafiqul Islam, Md Sazzad Hossain, Sarder Udoy Raihan, Md Arifuzzaman Bhuyan

Subject: Engineering, Civil Engineering Keywords: Urban Flood; Dhaka; MIKE+; Real-time flood forecasting; Hydrodynamic modeling

Online: 4 September 2024 (04:50:55 CEST)

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Working Paper ARTICLE

Flattening COVID-19 Curve in Egypt: An Epidemiological Modelling

Ali Hasab

Subject: Medicine And Pharmacology, Epidemiology And Infectious Diseases Keywords: COVID-19; Egypt; Epidemic SIR Model; Pandemic; Flattening the curve

Online: 14 May 2020 (15:12:16 CEST)

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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)

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Preprint ARTICLE | doi:10.20944/preprints202112.0487.v1

Modelling Buildings in CityGML LOD1: Building Parts, Terrain Intersection Curve and Address Features

Evgeny Shirinyan, Dessislava Petrova-Antonova

Subject: Engineering, Architecture, Building And Construction Keywords: 3D City Model; CityGML 2.0; Spatial Data Integration

Online: 30 December 2021 (12:51:35 CET)

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Preprint ARTICLE | doi:10.20944/preprints202406.1592.v1

New Physically-Based Mathematical Model and Experiments for a Recently Invented Solar Pot

Márton Rátkai, Gábor Géczi, Richárd Kicsiny, László Székely

Subject: Engineering, Mechanical Engineering Keywords: solar cooking; solar pot; mathematical modelling; simulation results; measurements

Online: 24 June 2024 (08:16:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.1622.v1

Assessment of the Thermomechanical Behavior and Microstructure of AA 7075-T6 Aluminum Alloy Lap Joints at Optimal Predicted FSW Process Parameters

Oumayma Toumi, Romdhane Ben Khalifa, Alessia Teresa Silvestri, Ridha Ennetta, Fabio Scherillo, Umberto Prisco

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: FSW; AA 7075-T6 Aluminum alloy; lap joint; microstructure; thermomechanical proprieties

Online: 24 May 2024 (13:21:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0914.v1

Fungal Methane Production Under High Hydrostatic Pressure in Deep Subseafloor Sediments

Mengshi Zhao, Dongxu Li, Jie Liu, Jiasong Fang, Changhong Liu

Subject: Biology And Life Sciences, Life Sciences Keywords: Anaerobic; HHP; Schizophyllum commune 20R-7-F01; CH₄; transcriptomics; ROS

Online: 13 August 2024 (13:19:01 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202402.1061.v1

Enhancing Reliability in Wind Turbine Power Curve Estimation

Pere Marti-Puig, José Ángel Hernández, Jordi Solé-Casals, Moisès Serra-Serra

Subject: Engineering, Energy And Fuel Technology Keywords: Wind Power Curve Modeling; Artificial neural networks (ANN); Wind Turbine (WT); SCADA Data.; Industrial AI

Online: 19 February 2024 (12:24:46 CET)

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Preprint ARTICLE | doi:10.20944/preprints202403.1391.v1

Energy and Exergy Analyses of an Innovative Heat Recovery System from the LNG Regasification Process in Green Ships

Roberto Bruno, Vittorio Ferraro, Piero Bevilacqua, Piofrancesco Barone

Subject: Engineering, Energy And Fuel Technology Keywords: LNG, exergy potential, seawater freezing, ice production, air-conditioning, second law analysis, novel environmental analysis

Online: 22 March 2024 (14:49:21 CET)

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Preprint ARTICLE | doi:10.20944/preprints202408.0709.v1

Investigation of the Energy Dissipation Characteristics of a Nonlinear Suspension System

Uchenna Diala, Yunpeng Zhu, Rajintha Gunawardena

Subject: Engineering, Mechanical Engineering Keywords: vibration isolation system; nonlinear suspension system; OFRF; nonlinear systems; energy dissipation; nonlinear damping

Online: 9 August 2024 (13:17:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1528.v1

Assessing Nitrogen Fertilization in Processing Pepper: Critical Nitrogen Curve, and Crop Yield Response

Jose Maria Vadillo, Carlos Campillo, Valme Gonzalez, Henar Prieto

Subject: Biology And Life Sciences, Horticulture Keywords: horticulture; open field; vegetative development; fruit production

Online: 20 September 2024 (03:13:35 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202208.0156.v1

Static Load Characteristics of Hydrostatic Journal Bearings: Measurements and Predictions

Howon Yi, Hyunsung Jung, Kyuman Kim, Keun Ryu

Subject: Engineering, Mechanical Engineering Keywords: Hydrostatic bearings; Journal bearings; Static load characteristics; Measurements; Predictions

Online: 8 August 2022 (10:57:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201910.0213.v1

Quasi Cubic Trigonometric Curve and Surface

Guicang Zhang, Kai Wang

Subject: Computer Science And Mathematics, Computational Mathematics Keywords: Quasi Extended Chebyshev space; optimal normalized totally positive basis; high-order continuity; shape preserving; shape features

Online: 18 October 2019 (11:33:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201607.0017.v1

Elastic Wave Motions and an Electromagnetic Field for a Photothermal Theory with Two Temperature under Hydrostatic Initial Stress

Khaled Lotfy, Wafaa Hassan

Subject: Physical Sciences, Particle And Field Physics Keywords: photothermal theory; carrier density; magnetic field; the harmonic wave; two temperature

Online: 9 July 2016 (11:00:24 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.1529.v1

Another Trial of a Solar-Powered, Cooperative Sensor/Actuator, Opto-Acoustical, Virtual Road-Fence to Mitigate Roadkill in Tasmania, Australia

Steven Gregory Candy, James A Bunker, Bruce Englefield

Subject: Biology And Life Sciences, Animal Science, Veterinary Science And Zoology Keywords: wildlife vehicle collisions; roadkill; One Welfare; virtual fence; avoidance learning; animal welfare.

Online: 26 March 2024 (08:17:02 CET)

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Preprint ARTICLE | doi:10.20944/preprints202404.1732.v1

Skills of Statistical Learning Algorithms in Thermal Stress Assessment Compared with the Expert Judgement Inherent to the Universal Thermal Climate Index (UTCI)

Peter Bröde, Dusan Fiala, Bernhard Kampmann

Subject: Biology And Life Sciences, Other Keywords: bio-meteorological index; heat stress; cold stress; high dimensional data; artificial intelligence; machine learning; UTCI

Online: 26 April 2024 (09:32:45 CEST)

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Working Paper ARTICLE

Hydrostatic Bandsaw Blade Guides for Natural Stone Cutting Applications

Ammar Ahsan, Jonas Kröger, Kyle Kenney, Stefan Böhm

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: Hydrostatic; Blade guides; Bandsaw; Diamond blade; Natural stone; Sawing

Online: 24 February 2020 (12:23:56 CET)

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Preprint ARTICLE | doi:10.20944/preprints201801.0090.v1

Clustering and Curve Fitting by Line Segments

Hrishikesh D. Vinod, Fred Viole

Subject: Business, Economics And Management, Econometrics And Statistics Keywords: clustering; curve fitting; nonparametric regression; smoothing data; polynomial approximation

Online: 10 January 2018 (09:48:23 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/preprints202107.0619.v3

Predicting Wealth using Intelligent Quotient, Emotional Awareness, and Culture

Azad Kabir, Raeed Kabir

Subject: Business, Economics And Management, Finance Keywords: Wealth curve; Intelligence quotient (IQ); Emotional Intelligence (EI); Emotional Awareness (EA)

Online: 23 April 2023 (06:05:04 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201804.0269.v1

Wind Turbine Power Curve Upgrades

Davide Astolfi, Francesco Castellani, Ludovico Terzi

Subject: Engineering, Mechanical Engineering Keywords: wind energy; wind turbines; SCADA; retrofitting; performance evaluation

Online: 20 April 2018 (14:11:15 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.1524.v1

Global Dynamics of Environmental Kuznets Curve: A Cross-Correlation Analysis of Income and CO2 Emissions

Dora Almeida, Luísa Carvalho, Paulo Ferreira, Andreia Dionísio, Inzamam Ul Haq

Subject: Business, Economics And Management, Economics Keywords: Environmental Kuznets curve; CO2 emissions; Economic growth; Cross-correlation analysis; Income levels; Sustainable development

Online: 19 July 2024 (06:35:19 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201612.0030.v1

Modelling and Optimization in Microgrids

Tobias Porsinger, Przemyslaw Janik, Zbigniew Leonowicz, Radomir Gono

Subject: Engineering, Electrical And Electronic Engineering Keywords: microgrid; classification; simulation; optimization; renewable energy sources; storage; electric vehicles

Online: 6 December 2016 (07:52:50 CET)

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Preprint ARTICLE | doi:10.20944/preprints202305.0955.v5

Decaying Turbulence as a Fractal Curve

Alexander Migdal

Subject: Computer Science And Mathematics, Analysis Keywords: Turbulence; Fractal; Anomalous dissipation; Fixed point; Velocity circulation; Loop Equations

Online: 6 July 2023 (10:17:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201609.0082.v1

Analysis of Inflection and Singular Points on Parametric Curve with a Shape Factor

Zhi Liu, Chen Li, Jieqing Tan, Xiaoyan Chen

Subject: Computer Science And Mathematics, Computational Mathematics Keywords: shape factor; singular points; inflection points; local convexity; global convexity

Online: 23 September 2016 (08:04:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202402.0247.v1

Process Analysis and Modelling of Operators Performance in Classical and Digitalized Assembly Workstations

Georgiana Cătălina NEACŞU (DOBRIŞAN), Eduard Laurenţiu NIŢU, Ana Cornelia GAVRILUŢĂ, Georgica Gheorghiţa VLAD, Elena Mădălina DOBRE, Marian GHEORGHE, Maria Magdalena STAN

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: lean learning factory; assembly workstations; DOJO; industry 4.0; regression analysis

Online: 5 February 2024 (13:34:58 CET)

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Preprint ARTICLE | doi:10.20944/preprints202402.1572.v1

Modelling of Energy Consumption in Manufacturing: A Practical Framework to Select the Modelling Approach

Akshay Ranade, José Ignacio Barbero, Lidia Parilla Benitez, Michele Gadaleta, Teresa Gutiérrez, Juha Virtanen, Andriy Hryshchenko, Alan McGibney, Ken Bruton

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: System Modelling; Sustainable Manufacturing; Energy Efficiency; Industry 4.0

Online: 27 February 2024 (15:38:35 CET)

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Preprint ARTICLE | doi:10.20944/preprints202011.0236.v1

Harnessing Wind Energy with Hydrostatic Transmission Coupled to an Electromagnetic Frequency Regulator

Ariel S. L. Patriota, Ricardo F. Pinheiro, Gabriel I. Medina T.

Subject: Engineering, Electrical And Electronic Engineering Keywords: Electromagnetic Frequency Regulator; Hydrostatic transmission; Wind turbines; Feedback linearization; Variable load; Induction machine; Slip

Online: 6 November 2020 (09:26:11 CET)

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Preprint ARTICLE | doi:10.20944/preprints202104.0453.v1

High Temperature and High Hydrostatic Pressure Cultivation, Transfer, and Filtration Systems for Investigating Deep Marine Microorganisms

Gina Carole Oliver, Anaïs Cario, Karyn Lynne Rogers

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: high-pressure microbiology; deep biosphere; cultivation devices; decompression

Online: 17 April 2021 (08:46:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0144.v1

Statistical Study on Crash Frequency Model Using GNB Models of Freeway Sharp Horizontal Curve Based on Interactive Influence of 3 Explanatory Variables

Yanjie Zeng, Xiaofei Wang, Lineng Liu, Xinwei Li, Caifeng Jiang

Subject: Engineering, Civil Engineering Keywords: freeway; crash prediction model (CPM); sharp horizontal curve segment (SHCS); interactive influence among three explanatory variables; generalized negative binomial (GNB)

Online: 15 August 2016 (09:47:37 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202307.1679.v1

Simultaneous Hydrostatic and Compressive Loading System for Mimicking the Mechanical Environment of Living Cartilage Tissue

Minki Chang, Yousuke Takahashi, Kyosuke Miyahira, Yuma Omuro, Kevin Montagne, Ryusei Yamada, Atsuki Gondo, Yu Kambe, Masashi Yasuno, Noriyasu Masumoto, Takashi Ushida, Katsuko S. Furukawa

Subject: Engineering, Bioengineering Keywords: Articular cartilage; Mechanical stimulation; Bioreactor

Online: 25 July 2023 (10:38:54 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202304.1251.v1

Improved Curve–Flattening for Flexible Space Robotics

Wenxin Li, Timothy Sands

Subject: Engineering, Aerospace Engineering Keywords: robotics; flexible; control; structural filter; space robotics

Online: 30 April 2023 (03:39:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202201.0435.v1

Flattening the Curve of Flexible Space Robotics

Timothy Sands

Subject: Engineering, Control And Systems Engineering Keywords: robotics; monitoring; repair; replace; infrastructure; space robotics; flexible; structural-controls interaction; trajectory shaping

Online: 28 January 2022 (12:12:26 CET)

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Preprint ARTICLE | doi:10.20944/preprints201704.0176.v1

Bézier Curve Modeling for Neutrosophic Data Problem

Ferhat Taş, Selçuk Topal

Subject: Computer Science And Mathematics, Mathematics Keywords: neutrosophic sets; neutrosophic logic; bézier curve

Online: 27 April 2017 (02:54:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0806.v1

The Impact of Forest Quality on Carbon Emission: A Study of China based on Environmental Kuznets Curve

Yuwen Zhang, Xiaolan Wu, Shengyuan Wang

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Forest quality; Environmental Kuznets Curve; Symbiotic System; Emission Reduction Pathway

Online: 10 September 2024 (11:13:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.1008.v1

Survey Data Processing for Modelling through Artificial Neural Networks (ANNs)

Joaquín Texeira-Quirós, Maria do Rosário Texeira Justino, António José Gonçalves, Marina Godinho Antunes, Pedro Ribeiro Mucharreira

Subject: Business, Economics And Management, Econometrics And Statistics Keywords: survey; data; processing; modelling; neural networks; ANN

Online: 15 May 2024 (08:30:19 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202406.0497.v1

Evaluation of Mis-Selection of Boundary Vertebrae and Its Effect on Measuring Cobb Angle and Curve Length in Adolescent Idiopathic Scoliosis

José Hurtado-Avilés, Vicente J. León-Muñoz, Fernando Santonja-Medina, Paolo Raimondi, Francisco Martínez-Martínez

Subject: Medicine And Pharmacology, Orthopedics And Sports Medicine Keywords: adolescent idiopathic scoliosis; Cobb angle; measurement errors; radiographic Assessment; spine curvature

Online: 7 June 2024 (15:16:27 CEST)

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The Cobb angle is critical in assessing adolescent idiopathic scoliosis (AIS) patients. This study aimed to evaluate the error in selecting the cranial and caudal limit vertebrae on AIS digital X-rays of experienced and novice observers and its correlation with the error in measuring the Cobb angle and determining the length of the scoliotic curves. Using the TraumaMeter v.873 software, eight raters (four experienced and four novices) independently evaluated 68 scoliotic curves on 42 AIS X-rays across three sessions one month apart according to Hopkins’ criteria of absolute reliability. Two spine specialist experts using the Cobb method established the gold standard measurements. The percentage of error in the selection of the cranial vertebrae (the most-tilted vertebra above the apex) is higher than in the caudal vertebrae (the most-tilted vertebrae below the apex) (44.7%, CI95% 41.05-48.3 compared to 35%, CI95% 29.7-40.4). The error in the choice of the most tilted vertebrae, in number of vertebrae per scoliotic curve, was MBE (mean bias error) =0.45, CI95% 0.38-0.52 in the cranial and MBE=0.35, CI% 0.69-0.91 in the caudal. The percentage of errors in the choice of boundary vertebrae is lower for the experienced than for the novices, both in cranial and caudal. The experienced chose at least one boundary vertebrae incorrectly in 52% of the meas-urements and the novices in 65.1%. The error in the Cobb angle did not depend on the number of boundary vertebrae chosen incorrectly (r=0.198, p=0.111). Of the 50% of Cobb angle measurements closest to the actual value, 55.4% (454) were obtained by incorrectly selecting at least one boundary vertebra. There was a positive correlation (r=0.673, p=0.000) between the error in selecting the boundary vertebrae and the error in determining the length of the scoliotic curves. The error in quantifying the length of scoliotic curves was MBE=0.43, CI95% 0.35-0.51 vertebrae per curve. We can conclude that errors in selecting boundary vertebrae are common among experienced and novice observers, with a greater frequency of error in the cranial vertebrae. There is no correlation between the error in selecting the boundary vertebrae and the error in measuring the Cobb angle. Contrary to the consensus, the accuracy of determining the length of the scoliotic curve is limited by the Cobb method’s reliance on the correct selection of boundary vertebrae. Inappropriate choice of boundary vertebrae leads to an estimated error in determining the length of the scoliotic curves of 0.805 vertebrae for each boundary vertebra chosen incorrectly.

Working Paper ARTICLE

Physical Modelling vs. Numerical Modelling: Complementarity and Learning

José S. Antunes do Carmo

Subject: Engineering, Civil Engineering Keywords: physical modelling; numerical modelling; construction works; growing risks; safety requirements; hybrid modelling

Online: 26 August 2020 (08:54:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.0590.v1

Hydrostatic Equation of State of BCC Bi by Direct Solving the Partition Function

Yue-Yue Tian, Bo-Yuan Ning, Hui-Fen Zhang, Xi-Jing Ning

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: equation of state; bismuth; partition function; ensemble theory of equilibrium state; direct integral approach; hydrostatic condition

Online: 9 April 2024 (10:59:07 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints202311.0177.v1

Chloride Diffusion Investigation under Different Magnitudes of Hydrostatic Pressure for Pre-Cracked Concrete

Zhiqiang Yan, Luming Wu, Fenghui Lu, Jie Ren, Chuangzhou Wu

Subject: Engineering, Civil Engineering Keywords: concrete cracking; hydrostatic pressure; diffusion coefficient; chloride transportation

Online: 3 November 2023 (06:38:52 CET)

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Preprint ARTICLE | doi:10.20944/preprints201611.0022.v1

Mixing Time—Experimental Determination and Applications to the Modelling of Crystallisation Phenomena

Dragan D. Nikolić, Giuseppe Cogoni, Patrick Frawley

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: mixing time; LIF; CFD; SPH; stirred tank

Online: 3 November 2016 (09:22:18 CET)

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Performing optimisation and scale-up studies of crystallisation systems requires accurate and computationally efficient mathematical models. The assumption of the ideal mixing conditions in batch reactors typically produce inaccurate results while the computational expense of CFD models is still prohibitively high. Therefore, in this work, a new intermediary approach is proposed that takes into account the non-ideal mixing conditions in the reactor and requires less computational resources than full CFD simulations. Starting with the Danckwerts concept of the intensity of segregation, an analogy between its application to chemical reactions and the kinetics of the crystallisation phenomena (such as nucleation and growth) has been made. As a result, the modified kinetics expressions have been derived which incorporate the effect of non-idealities present in stirred reactors. This way, based on the experimental measurements of the mixing time using the Laser Induced Fluorescence (LIF) technique, computationally more efficient mathematical models can be developed in two ways: (1) the accurate semi-empirical correlations are available for standard mixing configurations with the most often used types of impellers, (2) CFD simulations can be utilised for estimation of the mixing time; in this case it is necessary to simulate only the mixing process. The benefits offered by the LIF experimental technique have been demonstrated and some frequent problems in its application analysed. The mixing time results for configurations with and without baffles for three types of impellers and four different rotational speeds have been presented. The false shorter mixing times in the non-baffled configurations have been observed and this phenomena explained by the existence of two segregated zones in the reactor and confirmed by additional experiments. The precise measurements in these cases have been shown as difficult using the LIF technique, particularly for higher rpms. The experimental data has been compared to the preliminary simulation results obtained from the Smoothed Particle Hydrodynamics method and the standard k-ε turbulence model with the modest success. The shortcomings of the SPH model have been recognized and the directions for the future work discussed.

Preprint ARTICLE | doi:10.20944/preprints202408.0922.v1

An Efficient Process for the Management of Deterioration and Conservation of Architectural Heritage. The HBIM Project of the Duomo of Molfetta (Italy)

Juan Enrique Nieto-Julián, Silvana Bruno, Juan Moyano

Subject: Engineering, Architecture, Building And Construction Keywords: Architectural heritage; Conservation of the Duomo di Molfetta; Deterioration of masonry; HBIM; Semantic segmentation; Scan to BIM

Online: 13 August 2024 (13:10:15 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201607.0051.v1

Search for QPOs in the Light Curve of the Blazar OJ287: Preliminary Results from 2015/16 Observing Campaign

S. Zola, M. Valtonen, G. Bhatta, A. Goyal, B. Debski, A. Baran, J. Krzesinski, M. Siwak, S. Ciprini, A. Gopakumar, H. Jermak, K. Nilsson, D. Reichart, K. Matsumoto, K. Sadakane, K. Gazeas, M. Kidger, V. Piirola, F. Alicavus, K.S. Baliyan, A. Berdyugin, D. Boyd, M. Campas Torrent, F. Campos, J. Carrillo Gomez, D.B. Caton, V. Chavushyan, J. Dalessio, D. Dimitrov, M. Drozdz, A. Erdem, A. Escartin Perez, V. Fallah Ramazani, A.V. Filippenko, F. Garcia, F. Gomez Pinilla, M. Gopinathan, J.B. Haislip, J. Harmanen, G. Hurst, K.M. Ivarsen, M. Jelinek, A. Joshi, M. Kagitani, N. Kaur, N. Karaman, W.C. Keel, A.P. LaCluyze, B.C. Lee, E. Lindfors, J. Lozano De Haro, J.P. Moore, R. Naves Nogues, A.W. Neely, R.H. Nelson, W. Ogloza, S. Okano, J.C. Pandey, M. Perri, P. Pihajoki, G. Poyner, J. Provencal, T. Pursimo, A. Raj, R. Reinthal, S. Sadegi, T. Sakanoi, J.-L. Salto Gonzales, T. Schweyer, F.C. Soldan Alfaro, E. Sonbas, I. Steele, J.T. Stocke, J. Strobl, L.O. Takalo, T. Tomov, L. Tremosa Espasa, J.R. Valdes, J. Valero Perez, F. Verrecchia, J.R. Webb, M. Yoneda, M. Zejmo, W. Zheng, J. Telting, J. Saario, T. Reynolds, A. Kvammen, E. Gafton, R. Karjalainen, P. Blay

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: galaxies: active; BL Lacertae objects: individual (OJ 287); super massive black holes

Online: 18 July 2016 (10:46:26 CEST)

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Preprint REVIEW | doi:10.20944/preprints202402.1601.v1

Transmission Modelling for Human Schistosomiasis Incorporating Vaccination: Guiding Decision- and Policymaking

Ursula Panzner

Subject: Public Health And Healthcare, Other Keywords: Schistosoma; schistosomiasis; transmission dynamics; prediction; simulation; vaccination; policymaking

Online: 28 February 2024 (03:15:44 CET)

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Schistosomiasis, acquired by skin-penetrating cercariae of dioecious digenean schistosomes during freshwater contact, afflicts nearly 260 and 440 million people with active infections and residual morbidity, respectively; about 10 million women at reproductive age contract schistosomiasis during gestation every year. Acute schistosomiasis is characterized by pre-patent pro-inflammatory CD4+ T-helper 1 or CD4+ Th1/T-helper 17 reactivity against immature schistosomulae. Chronic schistosomiasis is dominated by post-patent anti-inflammatory CD4+ T-helper 2 reactivity against ova epitopes; flukes co-exist in immunocompetent definitive hosts as they are capable of evading their defense mechanisms. Preventive measures should be complemented by vaccination, inducing long-term protection against transmission, infection, and disease recurrence, given the latest advancements in schistosomal vaccines. Transmission models incorporating vaccination available in PubMed, Embase and Web of Science up to December 31, 2023 are presented. Besides conceptual model differences, predictions meant to guide decision- and policymaking reveal continued worm harboring facilitating transmission besides residual infections, and increased susceptibility to re-infection and rebound morbidity, both shifted to later life stages following the intervention. Consequently, a vaccination schedule is pivotal considering the optimal age for initial immunization, i.e., pre-schoolchildren or schoolchildren, in a cohort-based or population-based manner while incorporating potential non-adherers promoting ongoing transmission; longevity over magnitude of vaccine protection to antigenic schistosomal moieties is crucial including accounting for existing pre-acquired immunity from natural exposure, in utero priming besides herd immunity, and induced by chemotherapy. Combining as one multi-component approach long-term effects of vaccination with short-term effects of chemotherapy as regular repeated vaccine-linked therapy in contrast to a single-component intervention seems most promising for achieving WHO’s endpoints of transmission elimination and morbidity control.

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/preprints202307.0259.v1

Numerical Simulation of PMMA Impact Based on J-C Constitutive and Damage Model under Hydrostatic Pressure Loading

Qinghai Du, Fengyou Liu, Qi Lei

Subject: Engineering, Marine Engineering Keywords: PMMA; J-C constitutive Model; Impact; Loss and Damage; Numerical Simulation

Online: 5 July 2023 (08:50:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.0850.v1

Combined Experimental and Numerical Modelling of the Electrical Behaviour of Laser Soldered Steel Sheets

Andor Körmöczi, Gábor Horváth, Tamás Szörényi, Zsolt Geretovszky

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: laser soldering; filler material; lap geometry; electrical measurement; numerical modelling

Online: 13 May 2024 (11:54:40 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201805.0326.v1

Curve Path Detection in Autonomous Vehicle using Deep Learning

Balasriram Kodi, Manimozhi M

Subject: Engineering, Automotive Engineering Keywords: autonomous vehicles, lane detection, curve path detection, convolutional neural networks, deep learning

Online: 24 May 2018 (04:56:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201801.0061.v1

Curve Number Applications for Restoration the Zarqa River Basin

Maisa'a W. Shammout, Muhammad Shatanawi, Jim Nelson

Subject: Environmental And Earth Sciences, Environmental Science Keywords: water scarcity; watershed restoration; land use distribution; soil type; curve number; Zarqa River’s flow simulation; end-users

Online: 8 January 2018 (09:59:13 CET)

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Preprint ARTICLE | doi:10.20944/preprints202003.0157.v1

Stress Tensor and Gradient of Hydrostatic Pressure in the Contact Plane of Axisymmetric Bodies Under Normal and Tangential Loading

Emanuel Willert, Fabian Forsbach, Valentin L. Popov

Subject: Engineering, Mechanical Engineering Keywords: stress state; pressure gradient; normal contact; tangential contact; friction; axial symmetry; method of dimensionality reduction

Online: 10 March 2020 (03:22:49 CET)

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

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

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

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

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

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Preprint ARTICLE | doi:10.20944/preprints202406.0277.v1

Modelling of Granular Sediment Transport in Steady Flow Over a Mobile Sloped Bed

Jarosław Biegowski, Magdalena Pietrzak, Iwona Radosz, Leszek M. Kaczmarek

Subject: Engineering, Civil Engineering Keywords: granular mixture; steady flow; sediment transport rate; sediment velocity; sediment concentration; mobile sloped bed

Online: 5 June 2024 (10:12:37 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0359.v1

Enhancing the Quality of Polypropylene Recyclates: Predictive Modelling of Melt Flow Rate and Shear Viscosity

Lukas Seifert, Lisa Leuchtenberger-Engel, Christian Hopmann

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: polypropylene; recycling; Melt Flow Rate; shear viscosity; symbolic regression; predictive modelling

Online: 5 August 2024 (23:27:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.0587.v1

Modelling of Propagation Characteristics of Acoustic Pulse from Partial Discharge in Polymeric Insulating Materials

Abdul Samad, Wah Hoon Siew, Martin J. Given, Igor V. Timoshkin, John Liggat

Subject: Engineering, Electrical And Electronic Engineering Keywords: Acoustic Emission; PD detection; High Voltage Insulation; Acoustic Propagation; Acoustic Reflections

Online: 8 April 2024 (17:21:39 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202307.0773.v1

A New Definition of Dual Spline Curves for Curve Modeling and Geometry Defeaturing

Baotao Chi, Shengmin Bai, Qianjian Guo, Yaoming Zhang, Wei Yuan, Can Li

Subject: Computer Science And Mathematics, Geometry And Topology Keywords: Dual spline curves; Adaptive curve refinement; Curve modeling; Geometry defeaturing

Online: 12 July 2023 (05:50:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0767.v1

Isometric Force-Time Curve Assessment: Accuracy, Precision and Repeatability of a Mobile Application and Portable and Lightweight Device—The DINABANG^®

Dario Santos, Alfredo Bravo-Sánchez, Leonardo Alexandre Peyré-Tartaruga, Franco Simini, Rodrigo Zacca

Subject: Public Health And Healthcare, Physical Therapy, Sports Therapy And Rehabilitation Keywords: exercise; health; physical fitness; rehabilitation; physical therapy; strength assessment; exercise physiology; sports biomechanics; digital technology

Online: 12 August 2024 (09:58:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.0439.v1

Phytoplankton Bloom Localized by Sentinel-2 Images and Hydrodynamic Modelling – Sulejów Reservoir, Pilica River, Poland

Peshang Hama Karim, Monika Kalinowska, Aleksandra Zieminska-Stolarska, Artur Magnuszewski

Subject: Environmental And Earth Sciences, Pollution Keywords: eutrophication; phytoplankton blooms; Sentinel-2; hydrodynamic modelling; Pilica River; Sulejow Reservoir; NDCl; CCHE2D

Online: 5 April 2024 (12:09:49 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints202210.0466.v1

R-Curve Behavior of Polyhedral Oligomeric Silsesquioxane (POSS)–Epoxy Nanocomposites

Kunal Mishra, Raman Singh

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: Polymer matrix composites; POSS; Fracture mechanics; J-integral; Stress intensity factor; Scanning electron microscopy

Online: 31 October 2022 (06:19:34 CET)

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Preprint REVIEW | doi:10.20944/preprints202407.2328.v3

An Assessment of Agent-Based Modelling Tools for Community-Based Adaptation to Climate Change

Tom Selje, Rayhan Islam, Boris Heinz

Subject: Social Sciences, Other Keywords: Community-based adaptation; climate change adaptation; agent-based modelling; simulations; tool assessment

Online: 16 September 2024 (09:35:14 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1326.v1

Hydrological Modelling and Its Implication in Sustainable Water Resource Management in Gumti River Basin in Bangladesh

Maiesha Nujhat, Md. Rayhan, Md. Khairul Amin

Subject: Environmental And Earth Sciences, Water Science And Technology Keywords: Gumti River; HEC-HMS; Hydrological Modeling; Calibration; Parameters; Management Practices

Online: 19 August 2024 (12:11:03 CEST)

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Preprint REVIEW | doi:10.20944/preprints202406.0550.v1

The Impact of Industrial Fires in Urban Settings: Monitoring, Modelling, Health, and Environmental Justice Perspectives

Michael Edward Deary, Simon David Griffiths

Subject: Environmental And Earth Sciences, Pollution Keywords: Industrial fires; airborne pollution; public health hazard; particulate matter (PM); Monitoring techniques; dispersion modelling; emergency response; waste management; landfill; guideline values

Online: 10 June 2024 (07:53:47 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.1255.v1

Research on the Modelling Design of Warmth Perception for Elderly Companion Robots Based on Kansei Engineering

Qi Li, Jiahui Zhang

Subject: Social Sciences, Cognitive Science Keywords: Warmth perception; styling design; Kansei Engineering; Elderly Companion Robots

Online: 16 July 2024 (04:28:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202103.0613.v1

Measurement of Continuous Cooling Transformation Curve and High Temperature Mechanical Properties for 12Mn Steel

Sheng tao Qiu, Jun Wei

Subject: Engineering, Automotive Engineering Keywords: 12Mn steel; round billet; thermal mechanical simulation; CCT curve; diatometer method; JmatPro; tensile strength; the reduction of area; stress-strain curve; Thermal-cal software

Online: 25 March 2021 (11:44:06 CET)

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Preprint REVIEW | doi:10.20944/preprints202012.0672.v1

Problem Solving and Mathematical Modelling

Michael Gr. Voskoglou

Subject: Social Sciences, Education Keywords: mathematics education; problem solving; mathematical modelling; application-oriented teaching of mathematics

Online: 25 December 2020 (17:25:56 CET)

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Preprint ARTICLE | doi:10.20944/preprints202401.0618.v1

Enhancing Privacy in the Internet of Vehicles via Hyperelliptic Curve Cryptography

George Routis, Panagiotis Dagas, Ioanna Roussaki

Subject: Computer Science And Mathematics, Security Systems Keywords: Internet of Things (IoT); Internet of Vehicles (IoV); Vehicular Ad-hoc Networks (VANETs); vehicle privacy; digital certificates; digital signatures; ECC; HECC; energy consumption; message size; Arduino; Zigbee

Online: 8 January 2024 (10:52:59 CET)

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Preprint ARTICLE | doi:10.20944/preprints202010.0609.v1

To Bend the Curve of Terrestrial Biodiversity, Place Agency Centre Stage

Claude Garcia, Sini Savilaakso, Marieke Sassen, Natasha Stoudmann, René W. Verburg, Fabien Quétier, Miguel B. Araújo, Jean-François Bastin, Laurence Boutinot, Hélène Dessard, Anne Dray, Philip Fernbach, Scott Francisco, Jaboury Ghazoul, Laurène Feintrenie, Babak Naimi, Johan Oszwald, Stephan A. Pietsch, Brian E. Robinson, Plinio Sist, Steven A. Sloman, Terry Sunderland, Cédric Vermeulen, Lucienne Wilmé, Sarah J. Wilson, Patrick O. Waeber

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: agency; transition; cognition; land-use change; games; democracy

Online: 29 October 2020 (11:24:42 CET)

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Preprint BRIEF REPORT | doi:10.20944/preprints202004.0353.v1

Can Innate Immunity Flatten the Curve? Covid-19 – A Case Study

Sangam Banerjee

Subject: Biology And Life Sciences, Immunology And Microbiology Keywords: COVID-19; innate immunity

Online: 19 April 2020 (16:54:43 CEST)

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Preprint REVIEW | doi:10.20944/preprints202406.1392.v1

Hydrostatic Pressure as a Tool for the Study of Semiconductor Properties – an Example of III-V Nitrides

Iza Gorczyca, Tadek Suski, Piotr Perlin, Izabella Grzegory, Agata Kaminska, Grzegorz Staszczak

Subject: Physical Sciences, Condensed Matter Physics Keywords: Hydrostatic pressure; semiconductors; III-V nitrides; optoelectronic devices

Online: 20 June 2024 (08:30:51 CEST)

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Using the example of III-V nitrides crystallizing in a wurtzite structure (GaN, AlN, InN), this review presents the special role of hydrostatic pressure in studying semiconductor properties. Starting with a brief description of high pressure techniques for growing bulk crystals of nitride compounds, we focus on the use of hydrostatic pressure techniques in both experimental and theoretical investigations of special properties of nitride compounds, their alloys and quantum structures. The band gap pressure coefficient is one of the most important parameters in semiconductor physics. Trends in its behavior in nitride structures, together with trends in pressure-induced phase transitions, are discussed in the context of the behavior of other typical semiconductors. Using InN as an example, the pressure-dependent effects typical of very narrow bandgap materials, such as conduction band filling or effective mass behavior, are described. Interesting aspects of bandgap bowing in In-containing nitride alloys, including pressure and clustering effects, are discussed.Hydrostatic pressure also plays an important role in the study of native defects and impurities, as illustrated by the example of nitride compounds and their quantum structures. Experiments and theoretical studies on this topic are reviewed. Special attention is given to hydrostatic pressure and strain effects in short periods nitride superlattices. The explanation of the discrepancies between theory and experiment in the optical emission and its pressure dependence from InN/GaN superlattices led to the well-documented conclusion that InN growth on the GaN substrate is not possible. The built-in electric field present in InGaN/GaN and AlGaN/GaN heterostructures crystallizing in wurtzite lattice can reach several MV/cm, leading to drastic changes in the physical properties of these structures and related devices. It is shown how hydrostatic pressure modifies these effects and helps to understand their origin.

Preprint REVIEW | doi:10.20944/preprints202407.1186.v1

Uncertainties in Plant Species Niche Modelling Under Climate Change Scenarios

Isabel Passos, Albano Figueiredo, Alice Maria Almeida, Maria Margarida Ribeiro

Subject: Environmental And Earth Sciences, Ecology Keywords: climate change; plant species; range shift; &field1=keywords">species distribution models

Online: 15 July 2024 (19:48:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202311.1744.v1

High Hydrostatic Pressure Applied to Pre- and PostRigor Jack Mackerel (Trachurus murphyi) and the Assessment of Their Physicochemical Properties under Cold Storage

Liliana Zura-Bravo, Doina Solís, Klaudia Masztalerz, Gipsy Tabilo-Munizaga, Mario Pérez-Won, Roberto Lemus-Mondaca

Subject: Biology And Life Sciences, Food Science And Technology Keywords: Chilean jack mackerel; high hydrostatic pressure; rigor mortis; biochemical changes; cold storage; physicochemical properties.

Online: 28 November 2023 (09:23:58 CET)

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Preprint ARTICLE | doi:10.20944/preprints201610.0066.v1

Modelling Crack Propagation in Aluminium-Alloys 2524-T3 and 7050-T7452 Subjected to Fatigue Loading at Low Temperature

J. J. Xiong, M. D. Liu

Subject: Engineering, Mechanical Engineering Keywords: fatigue; crack growth; low temperature; residual life; aluminum-alloy

Online: 17 October 2016 (11:27:13 CEST)

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Preprint REVIEW | doi:10.20944/preprints202405.1442.v1

Revalidation of DNA Fragmentation Analyses for Human Sperm—Measurement Principles, Comparative Standards, Calibration Curve, Required Sensitivity, and Eligibility Criteria for Test Sperm—A Step-by-Step Approach to Cohort Studies with Multivariable Analyses

Satoru Kaneko, Yuki Okada

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: DNA fragmentation; single-cell pulsed-field gel electrophoresis; human sperm; sperm chromatin structure assay; sperm chromatin dispersion test; comet assay; quantitative analysis

Online: 23 May 2024 (08:19:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1520.v1

Analytical and Computer Modelling of Chaotic Advection of Stokes Flow Inside a Rectangular Cavity under Constant Velocities

Valentyn Sobchuk, Oleksandr Kurylko, Oleksandr Boryseiko, Oleg Perehuda, Iryna Lebedyeva, Olena Vashchilina

Subject: Computer Science And Mathematics, Applied Mathematics Keywords: stokes flow; chaotic advection; mixing; rectangular cavity; computer modelling

Online: 21 August 2024 (07:39:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202010.0516.v1

Frequency Response Characteristic (FRC) Curve and Fast Frequency Response Assessment in High Renewable Power Systems

Shutang You

Subject: Engineering, Energy And Fuel Technology Keywords: Frequency response characteristic (FRC) curve; frequency response; renewable generation; governor

Online: 26 October 2020 (11:40:43 CET)

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Preprint ARTICLE | doi:10.20944/preprints202304.1137.v1

V2G Strategies to Flatten the Daily Load Curve in Seoul, South Korea

Sangbong Choi, Changsoo Kim, Backsub Sung

Subject: Engineering, Electrical And Electronic Engineering Keywords: V2G strategie; daily load curve; charging location; discharging location; time-of-use (TOU); system marginal price (SMP)

Online: 28 April 2023 (07:25:40 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202202.0157.v1

Identify the Mathematical Models Generated by the Table Curve 3 D Program

Emilian Mosnegutu, Mirela Panainte-Lehadus, Valentin Nedeff, Claudia Tomozei, Narcis Barsan, Dana Chitimus, Marcin Jasinski

Subject: Computer Science And Mathematics, Mathematics Keywords: mathematical models; Table Curve 3D; correlation coefficient

Online: 11 February 2022 (08:35:16 CET)

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Working Paper REVIEW

Bending the Curve of Global Freshwater Biodiversity Loss – An Emergency Recovery Plan

David Tickner, Jeff Opperman, Robin Abell, Mike Acreman, Angela H. Arthington, Stuart E. Bunn, Steven J. Cooke, James Dalton, Will Darwall, Gavin Edwards, Ian Harrison, Kathy Hughes, Tim Jones, David Leclère, Abigail J. Lynch, Philip Leonard, Michael E. McClain, Dean Muruven, Julian D. Olden, Steve Ormerod, Rebecca E. Tharme, Michele Thieme, Klement Tockner, Mark Wright, Lucy Young

Subject: Environmental And Earth Sciences, Ecology Keywords: River restoration; wetlands; freshwater conservation; Sustainable Development Goals; Convention on Biological Diversity

Online: 29 October 2019 (11:13:47 CET)

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Preprint ARTICLE | doi:10.20944/preprints201703.0065.v1

Modelling of Spatio-temporal Zero Truncated Patterns in Infectious Disease Surveillance Data

Oyelola Adegboye, Denis Leung, You-Gan Wang

Subject: Business, Economics And Management, Econometrics And Statistics Keywords: generalized estimating equations; overdispersion; poisson; spatio-temporal; Leishmaniasis

Online: 13 March 2017 (09:30:11 CET)

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Preprint ARTICLE | doi:10.20944/preprints202406.1443.v1

Bayesian Modelling of Travel Times on the Example of Food Delivery: Part 2 - Model Creation and Handling Uncertainty

Jan Pomykacz, Justyna Gibas, Jerzy Baranowski

Subject: Engineering, Control And Systems Engineering Keywords: online food delivery (OFD); delivery time estimation; Bayesian inference; generalized linear models

Online: 20 June 2024 (14:28:15 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0798.v1

3D Modelling of HPV-Related Tumors and Their Microenvironment

Sema Tugce Aydin, Burak Kizilca, Muharrem Okan Cakir, G. Hossein Ashrafi, Mustafa Ozdogan, Betul Karademir-Yilmaz

Subject: Medicine And Pharmacology, Oncology And Oncogenics Keywords: 3D-cell culture; tumor microenvironment; HPV-induced cancers

Online: 10 September 2024 (10:42:31 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1445.v1

Influence of AC-DC-AC Cycling with Hydrostatic Pressure on Accelerated Protective Performance Test of Glass Flake Epoxy Coating

Yong Shen, Likun Xu, Yilong Liu, Yonghong Lu, Haibo Xu, Rongrong Zhao, Shuangfeng Bai, Yonglei Xin, Jian Hou, Xuehui Liu, Feng Liu

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: epoxy coating; protective performance; EIS; AC-DC-AC; hydrostatic pressure

Online: 23 October 2023 (16:07:29 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201612.0054.v1

Critical Issues in Modelling Lymph Node Physiology

Dmitry Grebennikov, Raoul van Loon, Mario Novkovic, Lucas Onder, Rostislav Savinkov, Igor Sazonov, Rufina Tretyakova, Daniel J. Watson, Gennady Bocharov

Subject: Computer Science And Mathematics, Applied Mathematics Keywords: computational model; lymph node; multiscale structure; vascular network; fibroblastic reticular cells; conduit network; lymph flow; destruction of conduits

Online: 9 December 2016 (10:19:20 CET)

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Preprint ARTICLE | doi:10.20944/preprints202407.1776.v1

Modelling the Herbicide-Resistance Evolution in Lolium rigidum (Gaud.) Populations at the Landscape Scale

Lucia Gonzalez-Diaz, Irene Gonzalez-Garcia, Jose L. Gonzalez-Andujar

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: explicit genotype mode; dispersal vectors; gene flow; population dynamics; operational factors; spatially explicit model

Online: 23 July 2024 (10:02:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.2137.v1

Hardware Implementations of Elliptic Curve Cryptography Using Shift-Sub Based Modular Multiplication Algorithms

Yamin Li

Subject: Computer Science And Mathematics, Security Systems Keywords: elliptic curve cryptography; affine, projective, and Jacobian coordinates; modular multiplication; hardware security module; Verilog HDL; FPGA; cost/performance evaluation

Online: 31 August 2023 (09:35:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202211.0192.v1

Evaluation of the Daily Load Curve by Taking V2G of PEVs into Consideration

Sangbong Choi, Chang soo Kim, Back sub Sung

Subject: Engineering, Electrical And Electronic Engineering Keywords: Charging location; Discharging location; Time of Use(TOU); System Marginal Price(SMP)

Online: 10 November 2022 (05:59:59 CET)

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Preprint ARTICLE | doi:10.20944/preprints202407.0886.v1

A New Test Method of “Nuclear Magnetic Resonance + High-Speed Centrifugation” for Gas-Water Relative Permeability Curve of Low-Permeability and Tight Sandstone

Fenglai Yang, Huaxun Liu, Shusheng Gao, Sijie He, Feifei Fang, Cuili Wang, Liyou Ye, Kun Zhou, Xuejun Yang, Weiguo An

Subject: Physical Sciences, Fluids And Plasmas Physics Keywords: Low permeability and tight sandstone; Nuclear magnetic resonance (NMR); High speed centrifugation; Micro pore structure; Gas-water relative permeability curve

Online: 11 July 2024 (08:28:50 CEST)

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Gas-water relative permeability curve is the foundation of gas reservoir dynamic analysis and numerical simulation. It is generally obtained through gas displacing water experiment. Referring to the existing national standards, gas-water relative permeability test is carried out for low-permeability and tight sandstone. The flow is discontinuous and the curve smoothness is poor, which affects the application of gas-water relative permeability curve. Based on the comparative analysis of a large number of mercury injection and NMR experimental results of low-permeability and tight sandstone, a method to characterize the throat radius distribution of low-permeability tight sandstone based on NMR T2 spectrum is explored. Combined with high-speed centrifugal experiment, the calculation formulas of core water saturation, phase relative permeability of gas-water under different centrifugal force are established. A new method of "nuclear magnetic resonance + high-speed centrifugation" for gas-water relative permeability curve test of low-permeability and tight sandstone is formed, and the test is carried out on Sulige low-permeability tight sandstone core. The results show that: (1) The shape of cumulative distribution curve of throat radius by mercury injection method is basically consistent with that of T2 relaxation time by NMR, and there is a good corresponding relationship between them. (2) The centrifugation process is similar to the gas displacing water process. With the decrease of water saturation, water centrifugation in rock core becomes more and more difficult until it become irreducible. (3) The test process of the new method is unified and standard and up to 6 cores can be tested at the same time. The calculation results of water saturation and relative permeability curve are reliable and the integral curve is smooth, which greatly improves the test efficiency of gas-water relative permeability curve in low-permeability and tight sandstone. The new method can be widely used to study the gas-water two-phase seepage law in low-permeability and tight sandstone gas reservoir.

Preprint ARTICLE | doi:10.20944/preprints202403.0519.v1

Numerical Modelling of a Female Brain: Effect of the Dura Mater

Joana R Pinto, Sofia M Gonçalves, Fábio A. O. Fernandes, Gustavo Carmo, Matthew B. Panzer, Ricardo Alves de Sousa

Subject: Engineering, Mechanical Engineering Keywords: Finite Element Model; Brain; Traumatic Brain Injury; Female Head Model; Dura Mater

Online: 8 March 2024 (10:28:53 CET)

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Preprint ARTICLE | doi:10.20944/preprints202308.2126.v1

Echocardiographic-Fluoroscopic Fusion Imaging Improves Interventionalists´ Learning Curve for Percutaneous Left Atrial Appendage Closure

Dominika Anna Kanschik, Houtan Heidari, Kathrin Klein, Amin Polzin, Verena Veulemans, Jürgen Leick, Malte Kelm, Christian Jung, Tobias Zeus, Shazia Samreen Afzal

Subject: Medicine And Pharmacology, Internal Medicine Keywords: structural heart disease; left atrial appendage closure; fusion imaging; learning curve

Online: 31 August 2023 (10:36:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.1821.v1

Point-of-Care Ultrasound (POCUS) Assessment, Including Learning Curve: Developing a Dynamic Simulation Model

Sandra Patricia Usaquén-Perilla, Laura Valentina Bocanegra-Villegas, José Isidro García-Melo

Subject: Engineering, Bioengineering Keywords: System dynamics; Health Technology Assessment (HTA); Point-of-care ultrasound (POCUS); dengue

Online: 26 May 2023 (03:06:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201611.0012.v1

Application of the Lagrangian Meshfree Approach to Modelling of Batch Crystallisation: Part II—An Efficient Solution of Integrated CFD and Population Balance Equations

Dragan Nikolić, Patrick Frawley

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: CFD; SPH; population balance; NVidia CUDA; OpenMP

Online: 2 November 2016 (05:31:48 CET)

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The second article in the series presents the application of the Smoothed Particle Hydrodynamics (SPH) method to modelling of batch crystallisation in stirred tanks. A methodology to integrate the population balance equations (PBE) in parallel and independently from the Navier-Stokes equations is demonstrated. The benefits of the proposed methodology in terms of computational requirements, accuracy and availability of the crystal size distribution are discussed. The specific formulation of the SPH equations where the resulting system of ordinary differential equations is solved using the weighted contributions rather than numerically by solving a linear system of equations allows for massive parallelisation and a very loose coupling of the population balance and the fluid dynamics. It has been demonstrated, that the population balance equations can be solved on a Shared Memory Architecture (SMA) system using the OpenMP interface while the fluid dynamics equations being computed independently on a General Purpose Graphics Processing Unit (GPGPU) using the NVidia CUDA technology. This way, a significant portion of the computational overhead due to the large number of additional transport equations resulting from the discretisation of the population balance was removed: the SPH simulation coupled with 200 population balance equations was only 40% slower compared to SPH-only simulation. Two methods for the solution of population balance equations that preserve full crystal size distribution were implemented: discretised population balance (DPB) and method of characteristics (MOCH). The DPB equations are solved using the high-resolution finite-volume method with flux limiter and the effect of a large number of different flux limiters have been investigated. Both methods were validated using the case studies from the literature where an analytical solution can be derived. The developed models were applied to a numerical solution of coupled computational fluid dynamics and population balance equations to model a batch crystallization process. The effect of the hydrodynamics on the local temperature/supersaturation and the resulting crystal size distribution was captured and compared to the ideal mixing case. The simulation results from the DPB and MOCH methods were compared in terms of computational requirements and accuracy and MOCH selected as computationally more efficient and accurate.

Preprint ARTICLE | doi:10.20944/preprints201706.0093.v2

The Open Energy Modelling Framework (oemof) - A New Approach to Facilitate Open Science in Energy System Modelling

Simon Hilpert, Cord Kaldemeyer, Uwe Krien, Stephan Günther, Clemens Wingenbach, Guido Plessmann

Subject: Engineering, Energy And Fuel Technology Keywords: decision support; energy system modelling; optimization; collaborative development; open science

Online: 27 March 2018 (05:34:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.0035.v1

Targeting Mycobacterial Polyketide Synthase Pks13-TE Domain with Small Organic Molecular Scaffolds: QSAR-Driven Modelling Studies to Identify Novel Inhibitors

Jagriti Malhotra, Shovonlal Bhowmick, Mohammad K. Okla, Pritee Chunarkar Patil, Rupesh V. Chikhale

Subject: Chemistry And Materials Science, Medicinal Chemistry Keywords: Mycobacterial Polyketide Synthase; QSAR; Multiple Linear Regression; Docking; Molecular Dynamics Simulations

Online: 1 May 2024 (16:46:55 CEST)

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This study presents a detailed computational investigation aimed at identifying and evaluating potential small organic molecular scaffolds as inhibitors targeting the Pks13 protein, a critical enzyme in tuberculosis (TB) drug discovery. Our approach integrates multiple computational techniques, including quantitative structure-activity relationship (QSAR) modelling, compound library generation, molecular docking, biological activity prediction, re-evaluation of screened compounds, molecular dynamics (MD) analysis, and binding free energy estimation using the MM-GBSA approach. We developed a robust QSAR model using multiple linear regression (MLR) techniques, specifically tailored to predict the minimum inhibitory concentration (MIC) values of potential anti-TB agents. This model demonstrated excellent predictive performance, validated through rigorous internal and external validation procedures. Through molecular docking simulations, we identified five promising inhibitors Ethyl (R,Z)-2-(2-((2-chlorobenzyl) oxy)benzylidene)-5-(4-chlorophenyl)-7-methyl-3-oxo-2,3-dihydro-5H-thiazolo [3,2-a] pyrimidine-6-carboxylate (PKD1), (7R,9aR)-7-(2-hydroxyphenyl)-4-(2-methoxyphenyl)-3-methyl-7,8,9,9a-tetrahydroisoxazolo[5,4-b]quinolin-5(6H)-one (PKD2), (7-(4-methoxy phenyl)-2-methyl-3-phenylpyrazolo[1,5-a]pyrimidin-5-yl)(4-(3-(trifluoromethyl)phenyl) piperazin-1-yl)methanone (PKD3), (8S,10S)-10-(((2R,4S,5S,6S)-4-amino-5-hydroxy-6-methyl tetrahydro-2H-pyran-2-yl)oxy)-6,8,11-trihydroxy-8-(2-hydroxyacetyl)-1-methoxy-7,8,9,10-tetra-hydrotetracene-5,12-dione (PKD4), 3-(3,4-dimethylphenyl)-5-((2-(4-fluorophenyl)-2-oxoethyl) thio)-6-phenyl-2-thioxo-2,3,5,7a-tetrahydrothiazolo[4,5-d]pyrimidin-7(6H)-one (PKD5)with high binding affinities, prioritizing them based on their binding energies. These selected compounds were further assessed for their biological activity predictions, guiding the selection of candidates for experimental validation. Subsequent re-evaluation using absolute binding free energy estimation and MD simulations provided insights into the stability and dynamics of the protein-ligand complexes over time. Our findings highlighted the potential of identified compounds as stable binders within the Pks13-TE domain binding pocket, underscoring their viability as drug candidates. Additionally, binding free energy analysis using MM-GBSA reaffirmed the strong affinity of the proposed compounds towards Pks13. Our integrated computational approach offers a systematic and detailed framework for the identification and characterization of potential Pks13 inhibitors with specific relevance to TB drug discovery.

Preprint ARTICLE | doi:10.20944/preprints202301.0060.v1

The Environmental Kuznets Curve hypothesis for Colombia: impact of economic development on greenhouse gas emissions and ecological footprint

Jorge A Acevedo, Carlos Felipe Valencia, Carlos Darío Valencia

Subject: Business, Economics And Management, Econometrics And Statistics Keywords: carbon dioxide emissions; Ecological footprint; Economic growth; EKC hypothesis; Environmental degradation; ARDL; Methane emissions

Online: 4 January 2023 (03:44:17 CET)

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Preprint ARTICLE | doi:10.20944/preprints201708.0070.v1

Stretch-Shortening Cycle in Countermovement Jump: Exclusive Review of Force-Time Curve Variables in Eccentric and Concentric Phases

Mahdi Cheraghi, Javad Sarvestan, Masoud Sebyani, Elham Shirzad

Subject: Public Health And Healthcare, Physical Therapy, Sports Therapy And Rehabilitation Keywords: stretch-shortening cycle; countermovement jump; force-time curve variables; eccentric; concentric; volleyball

Online: 21 August 2017 (09:08:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.1249.v1

Predictive Modelling and Optimization of the Mechanical Properties of Laser-Coated NB/SiC/Ni Welds Using an ANFIS

Zhe Zou, Juan Chen, Ming-Der Jean

Subject: Physical Sciences, Applied Physics Keywords: SiC/BN/Ni welds; ANFIS; hardness properties; metal-matrix composite; laser cladding

Online: 18 April 2024 (14:13:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202312.1915.v1

Modelling and Measuring Trust in Human-Robot Collaboration

Erlantz Loizaga, Leire Bastida, Sara Sillaurren, Ana Moya, Nerea Toledo

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: Human-Robot Collaboration (HRC); trust dimensions; trust dynamics; experimental process

Online: 26 December 2023 (04:24:01 CET)

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Preprint ARTICLE | doi:10.20944/preprints202304.1179.v1

Phenylalanine Losses in Neutralization Dialysis: Modelling and Experiment

Anton Kozmai, Mikhail Porozhnyy, Violetta Gil, Lasaad Dammak

Subject: Chemistry And Materials Science, Physical Chemistry Keywords: ion-exchange membrane; neutralization dialysis; modelling; phenylalanine losses; amino acid; demineralization

Online: 28 April 2023 (11:37:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201912.0097.v1

Modelling and Mitigation Strategy of IoT Botnet Propagation

Mohammed Ibrahim, Mohd Taufik Abdullah, Azizol Abdullah, Thinagaran Perumal

Subject: Computer Science And Mathematics, Information Systems Keywords: IoT (Internet of Things); bot; botnet; propagation; nodes; sensor; infectious; mitigation

Online: 7 December 2019 (17:03:34 CET)

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Preprint ARTICLE | doi:10.20944/preprints201702.0055.v1

Addressing Energy System Modelling Challenges: The Contribution of the Open Energy Modelling Framework (oemof)

Simon Hilpert, Stephan Günther, Cord Kaldemeyer, Uwe Krien, Guido Plessmann, Frauke Wiese, Clemens Wingenbach

Subject: Engineering, Energy And Fuel Technology Keywords: open source; energy system modelling; energy system optimization

Online: 15 February 2017 (11:20:31 CET)

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