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Preprint ARTICLE | doi:10.20944/preprints202409.0743.v1

Competitiveness Evaluation Method of Supersonic Civil Aircraft Based on Analytic Hierarchy Process

Jiazheng He, Rui Pan, Wenyuan Cheng, Chenxin Guo, Zhijun Meng

Subject: Engineering, Aerospace Engineering Keywords: supersonic civil aircraft; analytic hierarchy process; competitiveness; social acceptance

Online: 10 September 2024 (15:12:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0807.v1

RANS Simulation of Minimum Ignition Energy of Stoichiometric and Leaner CH4/Air Mixtures at Higher Pressures in Quiescent Conditions

Sooraj Paleli Vasudevan, Siva Muppala

Subject: Engineering, Mechanical Engineering Keywords: minimum ignition energy; single-step mechanism; minimum ignition power; density; high operating pressures; reactingFOAM solver; spherical flames; flame evolution; Arrhenius law

Online: 10 September 2024 (14:19:39 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0800.v1

The Importance of Weather Factors on the Resilience of Airport Flight Based on Kolmogorov-Arnold Networks (KANs)

Mingyang Song, Jianjun Wang, Rui Li

Subject: Engineering, Transportation Science And Technology Keywords: Airport Operations; Resilience Assessment; Weather Factors; Grey Relational Analysis; Kolmogorov-Arnold Network

Online: 10 September 2024 (11:21:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0789.v1

A Comparative Data Augmentation-Assisted Diagnostic Framework for Industrial Centrifugal Pumps

Dong-Yun Kim, Akeem Bayo Kareem, Daryl Domingo, Jangwook HUR

Subject: Engineering, Mechanical Engineering Keywords: centrifugal pump; data augmentation; electric motor; fault classification; gaussian noise; PHM

Online: 10 September 2024 (11:07:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0793.v1

A Comparison of Battery Equivalent Circuit Model Parameter Extraction Approaches Based on Electrochemical Impedance Spectroscopy

Yuchao Wu, Balakumar Balasingam

Subject: Engineering, Electrical And Electronic Engineering Keywords: Li-ion battery (LIB); battery parameters estimation; battery management system; electrochemical impedance spectroscopy (EIS); electrical equivalent circuit models (ECM); exhaustive search (ES); least squares (LS); Monte-Carlo run; nonlinear least squares (NLS)

Online: 10 September 2024 (10:59:01 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0797.v1

Impact of the Emissions Trading System (ETS) on Indian Shipping

Tanuja Bansal

Subject: Engineering, Marine Engineering Keywords: Emissions Trading System, Indian Shipping, Regulatory Impact, Economic Effects, Adaptation Strategies.

Online: 10 September 2024 (10:43:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0802.v1

The Process of Measuring the Dielectric Constant of An aqueous Solution for Different Samples of Sugar

Hawraa fadhil Abd, sayed mustafa Safavi, Yaser Norouzi

Subject: Engineering, Electrical And Electronic Engineering Keywords: Diabetes; sugar concentration; Dielectric Constant; Permeability; Inductor

Online: 10 September 2024 (10:42:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202401.1095.v2

Biomechanical Effects on Periodontal Ligaments during Expansion of the Maxillary Arch Using Thermoformed Aligners Modeled by Computational Methods

Gustavo Adolfo Rojas, Jose Isidro Garcia Melo, Juan Sebastian Aristizabal Mullet

Subject: Engineering, Bioengineering Keywords: amelocemental junction; FEM simulation; maxillary arch; thermo-formed aligners; complementary biomechanical attachments CBA

Online: 10 September 2024 (09:51:36 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0769.v1

Modeling Borehole Resistivity Logs with Exponentially Graded Multilayered Soil Inversion

Ricardo Páramo, Eduardo Faleiro, Jorge Moreno, Gabriel Asensio

Subject: Engineering, Electrical And Electronic Engineering Keywords: resistivity Logging; Inversion procedure; exponentially graded multilayered soils; soil modeling

Online: 10 September 2024 (09:47:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0738.v1

Role of Coalesced Bainite in Hydrogen Embrittlement of Tempered Martensitic Steels

Hee-Chang Shin, Sang-Gyu Kim, Byoungchul Hwang

Subject: Engineering, Metallurgy And Metallurgical Engineering Keywords: hydrogen embrittlement; tempered martensitic steels; microstructure; coalesced bainite

Online: 10 September 2024 (09:38:32 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0784.v1

Networking 3 K Logic Gate Quantum Processors to Approach 1 Billion Logic Gate Performance

Daniel Guidotti, Gee-Kung Chang, Xiaoli Ma

Subject: Engineering, Telecommunications Keywords: semiconductor; quantum; dot; entangled; photon; fiber; network; server; qubit; encrypt

Online: 10 September 2024 (09:36:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0779.v1

Performance Analysis of Glass Façade Cleaning Robot

Amuthakkannan Rajakannu, Abubacker K.M

Subject: Engineering, Control And Systems Engineering Keywords: Vacuum Cleaning Robot (VCR); Faç; ade Cleaning Robot (FCR); Random Walk Algorithm; Ultrasonic Sensors; Adhesion Mechanism

Online: 10 September 2024 (09:35:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0752.v1

Application of Artificial Intelligence in Condition Monitoring for Oil and Gas Industries

Amuthakkannan Rajakannu, Ramachandran K.P, Vijayalakshmi K

Subject: Engineering, Control And Systems Engineering Keywords: Artificial Intelligence; oil and gas sector; condition monitoring; Artificial Neural Network (ANN); Wavelet Packet Decomposition (WPD)

Online: 10 September 2024 (09:01:03 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0774.v1

Effect of Waste Plastic on Performance of Asphalt Mixtures

Mujasim ALi, Muhammad Ibrahim, Javeria Imran, Rana Muhammad Numan

Subject: Engineering, Transportation Science And Technology Keywords: Recycled Plastic; Sustainability; Plastic Bags; Asphalt mixtures; Plastic waste management; Road construction materials

Online: 10 September 2024 (08:11:15 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0771.v1

Part-Prototypes Models in Medical Imaging: Applications and Current Challenges

Lisa Anita De Santi, Franco Italo Piparo, Filippo Bargagna, Maria Filomena Santarelli, Simona Celi, Vincenzo Positano

Subject: Engineering, Bioengineering Keywords: Deep Learning; XAI; Interpretability-by-Design; Part-prototypes Models; Medical Imaging

Online: 10 September 2024 (07:35:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0718.v1

Reaction Molecular Dynamics Study of Combustion Mechanism in Heavy Oil Thermal Recovery

Tianfang Yang, Linsong Cheng, Zilong Liu, Zhigang Sun, Ronghao Zhou, Huan Wang, Hongbing Luo

Subject: Engineering, Energy And Fuel Technology Keywords: heavy oil: reaction path; combustion reaction kinetics; reaction rate

Online: 10 September 2024 (03:27:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0708.v1

A Proposed Algorithm Based on Variance to Effectively Estimate Crack Source Localization in Solids

Young-Chul Choi, Byun-Young Chung, Doyun Jung

Subject: Engineering, Mechanical Engineering Keywords: Acoustic emission; variance; source localization; crack wave; time of arrival difference

Online: 9 September 2024 (16:46:35 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0694.v1

Hybrid Biomechanical Design of Dental Implants: Integrating Solid and Gyroid TPMS Lattice Architectures for Optimized Stress Distribution

Dawit Bogale Alemayehu, Masahiro Todoh, and Song-Jeng Huang

Subject: Engineering, Mechanical Engineering Keywords: finite element method; implantology; biomechanical; additive manufacturing; dental implant; osseointegration; hybrid

Online: 9 September 2024 (13:03:49 CEST)

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Dental implantology has evolved greatly as a result of the application of biomechanical engineering concepts, notably the utilization of additive manufacturing technologies that recreate the intricate architecture of real bone. This technique intends to improve functional compatibility with bone tissue while also addressing continuing problems of stress distribution inside dental implants. The research examines two types of dental implants: fully gyroid latticed and hybrid gyroid latticed with a solid neck, comprising three different cell sizes—FI-111, FI-222, FI-333, and their hybrid equivalents HI-111, HI-222, and HI-333. Traditional solid implants often cause stress shielding, which reduces long-term osseointegration and implant durability. Developed using nTopology for lattice configuration and meshing, this design undergoes a comprehensive stress analysis using finite element analysis (FEA). The study seeks to determine the most efficient implant design by maximizing stress distribution and mechanical stiffness. Analyses suggest that hybrid latticed implants, notably the HI-222 type, possess superior mechanical characteristics. These implants successfully balance stiffness and flexibility, reducing stress concentrations and improving stress distribution throughout the implant structure. This balance is critical for decreasing micromotions at the bone-implant interface, boosting osseointegration, and, ultimately, increasing implant longevity and success rates in clinical settings. The paper describes a substantial redesign of dental implants by combining biomechanical engineering and modern additive manufacturing. The novel proposed hybrid structure not only addresses typical challenges such as stress shielding, but it also establishes new standards in implantology, potentially leading to better clinical results and patient quality of life. This complete approach emphasizes the ability of personalized implant designs to fulfill individual clinical demands, indicating a significant improvement in dental treatment technology.

Preprint ARTICLE | doi:10.20944/preprints202409.0690.v1

Impact of Model Knowledge on Acoustic Emission Source Localization Accuracy

Thomas Erlinger, Christoph Kralovec, Christoph Humer, Martin Schagerl

Subject: Engineering, Mechanical Engineering Keywords: acoustic emission; structural health monitoring; localization; model knowledge; dispersion

Online: 9 September 2024 (12:49:12 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0565.v1

An Analysis on the Conceptual and Functional Factors Affecting the Effectiveness of PEM Water Electrolysis

Gaydaa AlZohbi

Subject: Engineering, Energy And Fuel Technology Keywords: Water electrolysis; oxygen evolution reaction; hydrogen evolution reaction; electrocatalyst

Online: 9 September 2024 (12:38:36 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0671.v1

Fabrication of Laminated Flooring Decorated by Resin Impregnated Paper with Improved Flame Retardant, High Wear-Resistant, Low Formaldehyde Emission

Kankan Zhou, Jianhui Cheng, Minliang Fan

Subject: Engineering, Architecture, Building And Construction Keywords: Wood; laminated flooring; structural design; hot-pressing technology; wear-resistant layer

Online: 9 September 2024 (12:06:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0643.v1

Optimization Refined Palm Oil Biodiesel Production Using Hybrid Metaheuristic Algorithm (SAGAC)

Marco Antonio Campos Benvenga, Irenilza Nääs

Subject: Engineering, Energy And Fuel Technology Keywords: SAGAC; sustainability; biofuels; biodiesel; optimization; metaheuristics; algorithms

Online: 9 September 2024 (11:32:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0641.v1

Mitigating Distributed Denial of Service Attacks in Software-Defined Networking

Abdullah Alnajim, Faisal Alotaibi, Sheroz Khan

Subject: Engineering, Telecommunications Keywords: Software-Defined Networking (SDN); Distributed Denial of Service (DDoS) attack; sampling Flow (sFlow); OpenFlow; OpenDaylight controller

Online: 9 September 2024 (09:21:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0588.v1

Reverse Engineering: Modeling Exhaust Emissions in Older Vehicles in the Era of New Technologies

Maksymilian Mądziel

Subject: Engineering, Transportation Science And Technology Keywords: vehicles; emission; modeling; artificial intelligence; portable emission measurement system; combustion engines

Online: 9 September 2024 (09:17:40 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0601.v1

Hardware Testing Methodology for Wide Bandgap High Power Converters

Zibo Chen, Zhicheng Guo, Chen Chen, Alex Q. Huang

Subject: Engineering, Electrical And Electronic Engineering Keywords: Silicon Carbide (SiC); Dynamic Characterization; Double Pulse Test (DPT); Thermal Impedance Extraction; Partial Discharge (PD) Measurements; Power Cycling Test

Online: 9 September 2024 (09:17:11 CEST)

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Wide bandgap (WBG) power semiconductor devices are increasingly replacing silicon IGBTs in high-power and high-voltage power electronics applications. However, there is a significant gap in the literature regarding efficient testing methodologies for high-power and high-voltage converters under constrained laboratory resources. This paper addresses this gap by presenting comprehensive, hardware-focused testing methodologies for high-power and high-voltage WBG power semiconductor based converters, preceding the control evaluation phase. The proposed methods enable thorough evaluation and evaluation of converter hardware, including device switching characteristics, driving circuit functionality, thermal management performance, insulation integrity, and sustained operation at full power. We utilize the double pulse test (DPT) to characterize switching performance in a two-level phase leg configuration, extract circuit parasitics, and validate magnetic components. The DPT is further applied to optimize gate driving circuits, validate overcurrent protection mechanisms, and measure device on-resistance. Additionally, a multicycle test is introduced to rapidly assess steady-state converter performance and estimate efficiency. Recognizing the critical role of thermal management in high-power converters, our methodologies extend to the experimental extraction of key thermal parameters—such as junction-to-ambient thermal resistance and thermal capacitance—via a heat loss injection method. A correlation method between temperature sensor measurements and junction temperature is presented to enhance the accuracy of device temperature monitoring during tests. To ensure reliability and safety, dielectric withstand tests and partial discharge measurements are conducted at both component and converter levels under conventional 60 Hz sinusoidal and high-frequency PWM waveforms. Finally, we highlight the importance of testing converters under full voltage, current, and thermal conditions through power circulating tests with minimal power consumption, applicable to both non-isolated and isolated high-power converters. Practical examples are provided to demonstrate the effectiveness and applicability of these hardware testing methodologies.

Preprint ARTICLE | doi:10.20944/preprints202409.0595.v1

Research on Old Building Renovation Strategies by using Green Building Technologies

Zhang Feng, Minyue Ge, Qian Meng, Yixue Chen

Subject: Engineering, Architecture, Building And Construction Keywords: Building renovation, Green building strategies, Energy-efficient systems, Sustainable utilization.

Online: 9 September 2024 (09:14:39 CEST)

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Preprint CASE REPORT | doi:10.20944/preprints202409.0620.v1

Design and Development of a Low-Cost Parabolic Type Solar Dryer and Its Performance Evaluation in Drying of King Fish – Case Study in Oman

Talal Al Haddabi1, Amuthakkannan Rajakannu

Subject: Engineering, Energy And Fuel Technology Keywords: Solar Energy; Parabolic Solar trough; Solar dryer; evacuated copper tube absorber; Specific heat

Online: 9 September 2024 (08:43:09 CEST)

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Dry Fish is a rich source of proteins and nutrients and can be eaten in many forms. Oman is one of the important fish producers in the world and having high demand in neighboring countries for Oman’s fish. Fishery sector is considered as one of the important economic development sector in sultanate of Oman. In the fishery sector, use of technology is not up to the mark because of less awareness of technology application among Omani fishermen. Also, there is a demand for a greater number of cold storages in different regions to store fresh fishes which is not materialized yet. Similarly, there is a demand of perfect and cheap technology in Oman to dry fishes to improve the profit to the fishermen. Solar energy is abundantly available in Oman and there are high possibilities in Oman to use solar energy in domestic and industrial applications. Since the sunlight is available throughout the year, it is possible to convert in to thermal energy or electrical energy. Electricity can be produced from photovoltaic principle (PV) or indirectly with concentrated solar power. Similarly, we can use solar concentrators for many thermal applications. The solar dryer is a device which is used to dry fruits, vegetables, leaves, clothes etc. If any of the items are dried with the help of solar energy, then we can save lot of non-renewable source of energy and can help to improve economy of the country. The sun can, at least seasonally at Oman’s latitudes, provide a substantial part of the energy needed for various applications. In this work, we used solar dryer to make dry fish with high quality. Use of parabolic type concentrator to dry the fish is an effective solution which is an innovative idea to the fishermen. The temperature variation in dryer is directly proportional to the intensity of solar. The tracking mechanism is a combination of electronic and mechanical design which tracks the sun automatically. In this work, a parabolic concentrator with automatic tracking mechanism was designed and the performance analysis have been done. In the design, copper tubes are used for heat transfer and then the hot fluid is circulated in the box which is used to dry the fishes. As per the experiment, fish drying efficiency obtained from solar dryer is 77.9% and it took 3 days to dry king fish of 20kg. There are many advantages in parabolic type solar concentrators relate to the quality of dryness in the fishes and time taken to dry the fishes which are elaborately discussed in this paper. This solar dryer technology will improve green environment and also will save non-renewable sources of sultanate of Oman for longer period of time.

Preprint ARTICLE | doi:10.20944/preprints202409.0608.v1

Comparing the Ground Reaction Forces, Toe Clearances, and Stride Lengths of Young and Older Adults Using a Novel Shoe Sensor System

Hide Matsumoto, Masaki Tomosada, Toshiaki Nishi, Yoshinori Sasaki, Ryota Sakurai, Takeshi Yamaguchi

Subject: Engineering, Bioengineering Keywords: shoe sensor system; aging; gait; ground reaction force; stride length; toe clearance

Online: 9 September 2024 (08:43:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0055.v2

Current Mirror Improved Potentiostat (CMIPot) for Three Electrode Electrochemical Cell

Alexandre Kennedy Pinto Souza, Carlos Augusto de Moraes Cruz, Élvio Carlos Dutra e Silva Júnior, Fagnaldo Braga Pontes

Subject: Engineering, Electrical And Electronic Engineering Keywords: Potentiostat CMOS; Amperometric Sensors; Electrochemical Sensor

Online: 9 September 2024 (08:42:56 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0638.v1

Enhanced Acoustic Mixing in Silicon-Based Chips with Sharp-Edged Micro-Structures

Mehrnaz Hashemiesfahan, Pierre Gelin, Han Gardeniers, Wim De Malsche

Subject: Engineering, Chemical Engineering Keywords: sharp corners; fast mixing; acoustofluidics

Online: 9 September 2024 (08:30:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0604.v1

Co-optimisation of mechanical properties and radiopacity through radiopaque filler incorporation for medical tubing applications

Alan Nugent, Joseph Molloy, Declan Mary Colbert

Subject: Engineering, Other Keywords: Medical device; Tubing; PEBAX; X-Ray; Radiopacity

Online: 9 September 2024 (08:28:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0606.v1

New Method to Obtaining the Final Elements of Hyper-Spectral Images

Hassanin mohammed Hamza, sayed mustafa Safavi, Yaser Norouzi

Subject: Engineering, Electrical And Electronic Engineering Keywords: hyperspectral; SAR; RDA; SENMAV; OMP

Online: 9 September 2024 (08:27:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0578.v1

Point of Common Connection Voltage Modulated Direct Power Control with Disturbance Observer to Increase of Renewable Energy Acceptance in Power System

Yong Woo Jeong, Woo Young Choi

Subject: Engineering, Electrical And Electronic Engineering Keywords: Grid voltage modulated power control; Point of common connection; Energy storage system; Voltage source inverter; Disturbance observer; Total harmonic distortion

Online: 9 September 2024 (08:00:22 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0520.v1

Data-Aided Sensing for Semantic Communication: A Brief Survey

Muhammad Awais

Subject: Engineering, Telecommunications Keywords: semantic communication; Data-aided Sensing; Communication

Online: 9 September 2024 (02:39:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0555.v1

High-Frequency Test of Electric Locomotive Arrester and Its PHM Design

Xinping Peng, Huanqing Zou, Pengfei Wang, Kejian Song, Ganghui Xie

Subject: Engineering, Electrical And Electronic Engineering Keywords: Arrester; Electric locomotive; Electrical characteristic; Harmonic resonance overvoltage; High-frequency test; Prognostics and health management; Zinc oxide valve plate

Online: 6 September 2024 (16:54:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0547.v1

An Ensemble of Machine Learning Models for the Classification and Selection of Categorical Variables in Traffic Inspection Work of Importance for the Execution of Events

Aleksandar Đukić, Milorad K. Banjanin, Mirko Stojčić, Tihomir Đurić, Radenka Đekić

Subject: Engineering, Transportation Science And Technology Keywords: traffic inspection work, cognitive continuum of knowledge, data, information, applied knowledge, intelligence, wisdom, knowledge capacity for sharing, skills and values, human agent learning, memory and consciousness, ambient intelligence, algorithms and software procedures and specifications, machine learning, artificial intelligence, big data, data warehouse, culture and strategy, event execution log, stacking ensemble of machine learning models

Online: 6 September 2024 (12:37:39 CEST)

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Traffic Inspection (TI) work in this article is positioned as a specific module of road traffic with its primary function oriented towards monitoring and controlling safe traffic and the execution of significant events within a particular geographic area. Exploratory research on the significance of event execution in simple, complicated and complex traffic flow and process situations is related to the activities of monitoring and controlling functional states and performance of categorical variables, which include objects and locations of road infrastructure, communication infrastructure and networks of traffic inspection resources. It is emphasized that the words “work” and “traffic” have the semantic status as synonyms (in one world language), which is explained in the design of the Agent-based model of the complexity of content and contextual structure of TI work at the singular and plural level with 12 points of interest (POI) in the thematic research. An Event Execution Log (EEL) was created for on-site data collection with eight variables, seven of which are independent (event type, activities, objects, locations, host, duration-period and periodicity of the event) and one dependent (significance of the event) variable. The structured data set includes 10,994 input-output vectors in 970 categories collected in the EEL created by 32 human agents (traffic inspectors) over a 30-day period. An algorithmic presentation of the methodological research procedure for preprocessing and final data processing in the ensemble of machine learning models for classification and selection of TI tasks is given. Data cleaning was performed on the available dataset to increase data consistency for further processing. Vector elimination was carried out based on the Location variable, such that the total number of vectors equals the number of unique categories of this variable, which is 636. The main result of this research is the Classification modeling of the significance of events in TI work based on machine learning techniques and the Stacking ensemble. The created machine learning models for event significance classification modeling have high accuracy values. To evaluate the performance metrics of the Stacking ensemble of models, the confusion matrix, Precision, Recall, ND F1-score are used.

Preprint ARTICLE | doi:10.20944/preprints202409.0447.v1

A Zinc Oxide Nanorod-Based Electrochemical Biosensor for the Detection of Tumor Markers in Saliva

Junrong Li, Yihao Ding, Yuxuan Shi, Zhiying Liu, Jun Lin, Rui Cao, Miaomiao Wang, Yushuo Tan, Xiaolin Zong, Zhan Qu, Liping Du, Chunsheng Wu

Subject: Engineering, Bioengineering Keywords: carcinoembryonic antigen; oral squamous cell carcinoma; electrochemical; biosensor; saliva

Online: 6 September 2024 (12:01:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0528.v1

Four-channel integrated high-voltage power supply for dielectric elastomer actuators

Haoyue Xing, Qun Hao, Cancan Yao, Zitong Zhang, Jiafu Li, Yang Cheng

Subject: Engineering, Electrical And Electronic Engineering Keywords: Dielectric elastomer actuators; Electric amplifier; High voltage; DC-DC converter

Online: 6 September 2024 (10:57:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0512.v1

Plastic Design of Metal Thin-Walled Cross-Sections of Any Shape Under Any Combination of Internal Forces

Antonio Aguero, Ivan Balaz, Torsten Hoglund, Yvona Kolekova

Subject: Engineering, Civil Engineering Keywords: plastic design; thin-walled cross-sections; Eurocodes; EN 1993-1-1:2022; EN 1999-1- 1:2023; any cross-section shapes; any combination of internal forces; free available programmes

Online: 6 September 2024 (09:39:42 CEST)

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The introduction provides an overview of beginning the development of a plastic design of metal thin-walled cross-sections. This large study investigates in detail together 14 steel and four extruded aluminium cross-sections. Six groups of various shaped cross-sections that consist of: four I-shaped doubly symmetric sections (two I-sections, one I-section with lips, one H-section); three monosymmetric sections with axis of symmetry z (monosymmetric I-section, T-section, diamond section); four monosymmetric sections with axis of symmetry y (two channels, channel with inside lips, channel with outside lips); two point symmetric sections (Z-section with and without lips); four asymmetric sections (L-profile, sigma section, two closed sections: oblique and irregular sections; non-warping sections along midline, but with negligible warping along the element's thicknesses: Tsection and L-profile are included in the above groups. Four extruded aluminium cross-sections are: I 200a section, diamond section and closed oblique and irregular sections. For all 18 cross-sections, the plastic section moduli of three kinds were calculated: Wpl,y,nB, Wpl,z,nB for bimoment not considered to be constraint; Wpl,y, Wpl,z, Wpl,wfor bimoment considered to be restraint; maximum values Wpl,y,max, Wpl,z,max, Wpl,w,max. The values of cross-section plastic resistances Npl, Mpl,y,Rd, Mpl,z,Rd and Bpl are also calculated in numerical examples. The values of cross-section properties are calculated in different ways to verify the correctness of the results. The following ways of calculations are used: the rules in Eurocode EN 1993-1-1: 2022; own MathCad programmes; own software. Recommendations for educational institutes and designers in practice are provided, including simple formulae for all the cross-sectional properties for the doubly and monosymmetric I-shaped sections, channels and Z-sections. Formulae are presented in six tables containing formulae in the dimensionless form, which are useful for parametrical studies and formulae for direct designs. The background of the Eurocode rules in EN 1993-1-1: 2022 is explained together with recommendations about how to avoid problems with using them.

Preprint ARTICLE | doi:10.20944/preprints202409.0507.v1

White Hydrogen (H₂) from Scrap Aluminium (Al³⁺) Dross: Transformation of Industrial Waste into a Fuel Source for the Future

Rahul Jarariya, Pyarimohan Dehury

Subject: Engineering, Energy And Fuel Technology Keywords: aluminium dross; waste management; sustainable resources; hydrogen gas; fuel cells; zero emission

Online: 6 September 2024 (05:56:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0466.v1

Compression Molding of PE Matrix/GF Fabric Reinforced Thick Laminates

Fabrizio Quadrini, Giorgio Patrizii, Alice Proietti, Leandro Iorio, Denise Bellisario, Loredana Santo

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: thermoplastic composites; glass fabrics; fiberglass; low density polyethylene; compression molding; recycling; repairing

Online: 6 September 2024 (03:46:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0467.v1

Investigation on the Performances of Esterified Waste Cooking Oil Recycling Agent and Recycled Asphalt

Junhui Wang, Qunshan Ye, Lingyi Fan, Cheng Xie, Haobin Liu

Subject: Engineering, Civil Engineering Keywords: recycled asphalt; waste cooking oil; glycerol esterification; thermo-oxidative stability; anti-aging properties

Online: 6 September 2024 (03:40:55 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0473.v1

Sulfur-Based Energy Storage Technologies

Syed Adnan Ali

Subject: Engineering, Energy And Fuel Technology Keywords: Sulfur-based batteries; Lithium-sulfur batteries; Energy storage technologies; Sodium-sulfur batteries; Magnesium-sulfur batteries; Hybrid sulfur flow batteries; Solid-state sulfur batteries; Sulfur-carbon nanocomposites; Polysulfide shuttle effect; Battery performance enhancement

Online: 6 September 2024 (03:40:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0454.v1

Evaluating the Educational Effectiveness of Radar Systems Laboratory Sessions in the Undergraduate Curriculum

Bengisu Yalcinkaya, Mohamed Benzaghta, Remziye Busra Coruk, Ali Kara

Subject: Engineering, Electrical And Electronic Engineering Keywords: educational technology; engineering education; frequency modulated continuous wave; radar systems

Online: 5 September 2024 (12:41:59 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0429.v1

Drying Goat's Milk by Spray Dryer: Physical-Chemical Characterization of Goat's Milk in Natura, in Powder and Reconstitutedle

Juanne Queiroz Farias, Mario Eduardo Rangel Moreira Cavalcanti-Mata, Maria Elita Martins Duarte, Francisca Moisés de Sousa, Viviane Brasileiro de Holanda, Manoel Tolentino Leite Filho, Alexandre da Silva Lúcio, Mylena Olga Pessoa Melo

Subject: Engineering, Other Keywords: atomization; preservation; statistica

Online: 5 September 2024 (12:36:03 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0385.v1

Enhanced Vital Parameter Estimation Using Short-Range Radars with Advanced Motion Compensation and Super-Resolution Techniques

Sewon Yoon, Seungjae Baek, Inoh Chioi, Soobum Kim, Bontae Koo, Youngseok Baek, Jooho Jung, Sanghong Park, Min Kim ---

Subject: Engineering, Electrical And Electronic Engineering Keywords: Vital sign estimation; Motion compensation; Multiple signal classification, Short-range radar; Principal component analysis

Online: 5 September 2024 (12:30:32 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0386.v1

Electromovility and Energy Transition in Cuba

Miguel Castro Fernández, Miriam Vilaragut Llanes, J.C. Hernandez

Subject: Engineering, Electrical And Electronic Engineering Keywords: electromobility; energy transition; renewable energy

Online: 5 September 2024 (12:29:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0455.v1

Efficient Design of Reversible Adder and Multiplier Using Peres Gates

PREMANAND KISANRAO KADBE, Shriram Markande

Subject: Engineering, Electrical And Electronic Engineering Keywords: Carry Save Adder; Carry Skip Adder; Look Ahead Carry Adder; Multiplier; Peres Gates; Ripple Carry Adder; Reversible Logic

Online: 5 September 2024 (12:10:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0464.v1

Efficient Large-Scale Urban Parking Prediction: Graph Coarsening Based on Real-Time Parking Service Capability

Yixuan Wang, Zhenwu Chen, Kangshuai Zhang, Yunduan Cui, Lei Peng

Subject: Engineering, Transportation Science And Technology Keywords: Large-scale urban parking prediction; Real-time parking service capacity; Graph coarsening; Temporal convolutional autoencoder; Graph attention.

Online: 5 September 2024 (12:07:32 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0456.v1

Design of Small-Type Permanent-Magnet Linear Motors and Drivers for Automation Application

Chia-Hsiang Ho, Jonq-Chin Hwang

Subject: Engineering, Electrical And Electronic Engineering Keywords: small-type permanent-magnet linear motor; end effects; cogging force; field-oriented control; S-curve motion trajectory control

Online: 5 September 2024 (11:12:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0388.v1

An Interdisciplinary Double-Diamond Design Thinking Model for Urban Transport Product Innovation: A Design Framework for Innovation Combining Mixed Methods for Developing the Electric Microvehicle “Leonardo Project”

Sara Viviani, Michelangelo-Santo Gulino, Alessandra Rinaldi, Dario Vangi

Subject: Engineering, Transportation Science And Technology Keywords: interdisciplinary design model for urban transport product innovation; double-diamond design thinking model; interdisciplinary research methods; mixed-methods; electric microvehicle; micromobility; sustainable mobility

Online: 5 September 2024 (11:04:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0404.v1

Further Development and Validation of an Interpretable Deep Learning Model for IR Image Based Breast Cancer Diagnosis

Yerken Mirasbekov, Nurduman Aidossov, Aigerim Mashekova, Vasilios Zarikas, Yong Zhao, Eddie Yin Kwee Ng, Anna Midlenko

Subject: Engineering, Bioengineering Keywords: Breast cancer; Bayesian Networks; Convolutional Neural Network; Explainable artificial intelligence; Machine Learning; Thermography

Online: 5 September 2024 (11:00:11 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0442.v1

Evaluation of Trenchless Pressure Pipeline Inspection Methods

Wei Zhang

Subject: Engineering, Civil Engineering Keywords: Pressure pipes; Trenchless; Pipelines; Inspection; Underground; Water

Online: 5 September 2024 (10:59:02 CEST)

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Within the research of pressure pipeline inspection methods there is an industry that is constantly growing and becoming more efficient. The purpose of inspection methods on pressure pipelines comes back to the issue of resolving leaks, corrosion, and inability of a pipeline to function (eventually). Evidently, these issues can hurt the environment, the public using the material being carried out by these pressure pipelines such as natural gas or petroleum and can hurt the pockets of pipeline companies that did not react quick enough to their pipeline solely for the reason that they may have not noticed there was an issue with their pressure pipeline. In-line inspection methods are continuously growing and have already made an impact to prevent the catastrophes that occur when a pipeline is not maintained. Technology such as smart pigs, MFLs, and ultrasounds are the future of pressure pipeline inspection. This research paper explains their pros and cons and how they’re overall more efficient and preferred as the primary inspection method for a pipeline. Older, more traditional methods such as aerial inspection, by-foot inspection, hydrostatic pressure testing, and Direct Assessment does not cover every base of inspection like in-line inspection technology does and this research explains why that is and the areas of where in-line inspection technology can be improved and deemed not as useful. This is where trenchless renewal and replacement methods come into play with inspection methods and determining the characteristics of a pipeline that matches with which inspection method and which trenchless method to use. The future of inspection methods for pressure pipelines is attainable and is somewhat already here, this research discusses the new emerging technologies and how designing in-line inspection technology to be cheaper and more versatile with pipeline characteristics can make everyone a winner in the future. A winner as far the environment being safe, neighborhoods near pressure pipelines being safe, companies being able to install in-line inspection technology at a fraction of the cost of today and the efficiency of pipelines by monitoring the characteristics with this new technology.

Preprint ARTICLE | doi:10.20944/preprints202409.0390.v1

Polarization-Enhanced Underwater Laser Range-Gated Imaging for Subaquatic Applications

Shuaibao Chen, Peng Liu, Wei He, Dong Luo, Yuguang Tan, Liangpei Chen, Jue Wang, Qi Zhao, Guohua Jiao, Wei Chen

Subject: Engineering, Marine Engineering Keywords: range-gated image; polarized light; image enhancement; underwater application

Online: 5 September 2024 (10:56:55 CEST)

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Preprint CONCEPT PAPER | doi:10.20944/preprints202409.0402.v1

Optimized Fabrication of Adams Pulse Motor Integrated with Arduino Microcontroller for Ease of Operations

Nachiketh Nadig, Aditya Gautam, Navya Moolrajani, Ajin Branesh Asokan, Gurmail Singh Malhi

Subject: Engineering, Aerospace Engineering Keywords: Adams Pulse Motor; Arduino Microcontroller; Sustainability; Electromagnetism

Online: 5 September 2024 (08:20:40 CEST)

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The search for more sustainable and efficient propulsion & power systems has become a focal point in aerospace engineering, driven by the necessity to reduce carbon emissions and mitigate environmental impact. In response, this paper explores the optimized fabrication of an Adams pulse motor integrated with an Arduino microcontroller, aiming to enhance performance while addressing the specific demands of aerospace applications. The Adams pulse motor, renowned for its simplicity and efficiency, serves as the basis of this study. Operating on the principles of electromagnetism, the motor comprises a stator and rotor configuration. When given electricity in pulses, the magnetic fields generated by stators interact with the rotor, inducing rotational motion. This simplicity makes the Adams pulse motor an attractive candidate for aerospace propulsion systems, where reliability and fuel efficiency are very important. Integration with an Arduino microcontroller introduces sophisticated control capabilities, enabling real-time adjustment of motor parameters such as speed, torque, and direction. Furthermore, the Arduino facilitates sensor feedback integration, allowing for autonomous operation and fault detection. This level of control not only enhances performance but also contributes to overall system reliability. One of the key highlights of this study is the application of the optimized Adams pulse motor integrated with an Arduino microcontroller in the aerospace industry. Aircraft propulsion systems are undergoing a shift towards more sustainable alternatives. The integration of the Adams pulse motor with Arduino aligns with this motive, offering a greener and more efficient propulsion/ power solution for aerospace applications. In conclusion, the optimized fabrication of Adams pulse motors integrated with Arduino microcontrollers holds tremendous promise for the aerospace industry. As the demand for sustainable propulsion solutions continues to grow, this integrated system presents a compelling option for future aircraft propulsion systems.

Preprint REVIEW | doi:10.20944/preprints202409.0403.v1

Identification of Technical Requirements for the Initial Design of an Autonomous Fruit-Harvesting Robot

Maxwell Salazar, Paola Portero, Juan Rubin

Subject: Engineering, Electrical And Electronic Engineering Keywords: Agricultural robotics; Computer vision; Autonomous harvesting

Online: 5 September 2024 (08:20:31 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0431.v1

Blind Cyclostationary Based Carrier Number and Spacing Estimation for Carrier-Aggregated Direct Sequence Spread Spectrum Cellular Signals

Ali Görçin

Subject: Engineering, Electrical And Electronic Engineering Keywords: cyclostationary feature detection; blind parameter estimation; wireless signals; direct sequence spread spectrum; carrier aggregation

Online: 5 September 2024 (08:15:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0432.v1

Research on Longitudinal Control of Electric Vehicle Platoons Based on Robust UKF-MPC

Jiading Bao, Zishan Lin, Hui Jing, Huanqin Feng, Xiaoyuan Zhang, Ziqiang Luo

Subject: Engineering, Automotive Engineering Keywords: Electric Vehicle; Platoon Longitudinal Control; Model Predictive Control; Unscented Kalman Filter

Online: 5 September 2024 (08:11:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0428.v1

An Experimental and Numerical Study on the Lateral Stiffness Limits of Straddle-type Monorail Tour-transit Systems

Hong Zhang, Pengjiao Wang, Qin Li, Junhui Jin, Shiqi Wei, Fengqi Guo, Cheng Feng, Qun Deng

Subject: Engineering, Civil Engineering Keywords: monorail tour-transit system; lateral stiffness; co-simulation; dynamic response; sensitivity analysis

Online: 5 September 2024 (08:09:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0340.v1

Enhancing Aerodynamic Performance in UAV Design: CFD Analysis

Mohamed Hamed Moustafa, Hood Salem Khashwain, Sharul Sham Dol, Ahmad Al Ramahi

Subject: Engineering, Mechanical Engineering Keywords: Unmanned Aerial Vehicles (UAV); Aerodynamic Forces; Lift-to-Drag Ratio; CFD

Online: 5 September 2024 (04:51:11 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0380.v1

Evaluating the Effects of Offshore Wind Farms: Environmental and Social Perspectives from Uruguay

Milagros Forastiero, Rodrigo Gutierrez, Franciele Weschenfelder, Everton de Almeida, Jesús C. Hernández

Subject: Engineering, Energy And Fuel Technology Keywords: Environmental impacts; Social impacts; Offshore Wind Farms

Online: 5 September 2024 (02:44:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0377.v1

Parameters Variation of Natural Gas Hydrate with Thermal Fluid Dissolution Based on Multi-field Coupling under Pore-Scale Modeling

Zhengyi Li, Zhiyuan Wang, Hongfei Ji

Subject: Engineering, Mining And Mineral Processing Keywords: Natural Gas Hydrate; Thermal Fluid Injection; LBM; Effective Heat Conductivity; Reaction Rate

Online: 5 September 2024 (00:31:03 CEST)

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

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

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

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

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

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Preprint ARTICLE | doi:10.20944/preprints202409.0293.v1

A Model-Free Adaptive Positioning Control Method for Underactuated Unmanned Surface Vessels under Unknown Ocean Currents

Zihe Qin, Feng Zhang, Wenlin Xu, Yu Chen, Jinyu Lei

Subject: Engineering, Marine Engineering Keywords: unmanned surface vehicle; positioning control; underactuated system; disturbance observer; virtual anchor

Online: 4 September 2024 (18:01:04 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0324.v1

Optimal Design and Analysis of Wide-band Near-infrared Hybrid Dielectric Gratings with High Transmission Efficiency

Ye Wang, Yongyi Chen, Li Qin, Lijun Wang

Subject: Engineering, Electrical And Electronic Engineering Keywords: Near-infrared; Transmission grating; Multilayer dielectric; Fabrication Tolerance

Online: 4 September 2024 (16:20:20 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0184.v2

A Review of Vehicles for Fire Suppression

Osman Acar, Eija Honkavaara

Subject: Engineering, Mechanical Engineering Keywords: Wildfire; Firefighting technology; Firefighting vehicles

Online: 4 September 2024 (12:03:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0360.v1

Research on Electric Vehicle Power Systems Based on Digital Twin Technology

Chong Li, Mei Jian Lei, Liangyi Yang, Wei Xu, Yong You

Subject: Engineering, Automotive Engineering Keywords: Digital twin; Powertrain system; Para model; Functional testing; Fault injection

Online: 4 September 2024 (11:23:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0351.v1

Stochastic Plantwide Optimizing Control for an Acrylic Acid Plant

Andrés Felipe Duque Amaya, Ricardo Andres Tusso-Pinzón, Silvia Ochoa

Subject: Engineering, Chemical Engineering Keywords: plantwide control; stochastic plantwide optimizing control; acrylic acid

Online: 4 September 2024 (09:22:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0337.v1

Sustainable Charging Stations for Electric Vehicles

Carlos Armenta-Déu, Luis Sancho

Subject: Engineering, Energy And Fuel Technology Keywords: Electric vehicle; Charging station; Technology; Modular design; PV power plant; Simulation; Sizing

Online: 4 September 2024 (08:43:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0319.v1

Compensation Function Observer-based Backstepping Sliding Mode Control of Uncertain Electro-hydraulic Servo Systems

Changzhong Pan, Yanjun Wang, Simon X. Yang, Zhijing Li, Jinsen Xiao

Subject: Engineering, Control And Systems Engineering Keywords: Lyapunov function; electro-hydraulic servo system; compensation function observer (CFO); backstepping; sliding mode control; observer-based control

Online: 4 September 2024 (08:41:43 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints202409.0330.v1

Precise Frequency Detecting Technology Based on Group Period Synchronization

Baoqiang Du, Yangfan Su

Subject: Engineering, Electrical And Electronic Engineering Keywords: frequency detecting; group quantization; phase synchronization; group period

Online: 4 September 2024 (08:39:54 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0345.v1

Researches on Orthogonal Experiments of Submersible Proportional Short-Circuit Blowing Model Test Bench and BP Neural Network Prediction&Pearson Correlation Analysis

Xi-guang He, Bin Huang, Li-kun Peng, Jia Chen

Subject: Engineering, Marine Engineering Keywords: submersible; proportional short-circuit blowing model; orthogonal experiments; statistical researching methods; back propagation neural network; statistical evaluation indicator; pearson correlation method

Online: 4 September 2024 (08:35:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0318.v1

A New-Type Dynamic Vibration Fiber Sensor

I-Nan Chang, Chih-Chuan Chiu, Wen-Fung Liu

Subject: Engineering, Electrical And Electronic Engineering Keywords: fiber Bragg grating; vibration wave sensors; fiber sensors

Online: 4 September 2024 (08:34:36 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0310.v1

Evaluating Mobility in Parkinson’s Disease through Wearable Sensors: A Systematic Review of Digital Biomarkers

Carlos Polvorinos-Fernández, Luis Sigcha, Luigi Borzì, Gabriella Olmo, César Asensio, Juan Manuel López, Guillermo de Arcas, Ignacio Pavón

Subject: Engineering, Bioengineering Keywords: Parkinson’ s disease; digital biomarkers; motor symptoms; ; wearables; body-worn sensors; machine learning

Online: 4 September 2024 (08:32:41 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0228.v1

Challenges and Issues of Life Cycle Assessment of Anaerobic Digestion of Organic Waste

Kasun Gimhana Jayawickrama, Rajeev Ruparathna, Rajesh Seth, Niharendu Biswas, Hisham Hafez, Edwin Tam

Subject: Engineering, Other Keywords: Life cycle assessment; Anaerobic digestion; Organic waste; Review

Online: 4 September 2024 (04:58:16 CEST)

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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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Preprint ARTICLE | doi:10.20944/preprints202409.0200.v1

Prediction Models for the Milling of Heat-Treated Beech Wood Based on the Consumption of Energy

Peter Koleda, Tomáš Čuchor, Pavol Koleda, Ľubomír Rajko

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: milling; heat-treated wood; energy consumption; regression model

Online: 4 September 2024 (04:45:04 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0235.v1

Innovative Polyelectrolyte Multilayer Nanofiltration Membrane Fabricated Through Spin-Spray Assisted Layer-by- Layer Assembly

Farid Fadhillah, Karim Kriaa, Fekri Abdulraqeb Ahmed Ali, Saad Aljlil

Subject: Engineering, Chemical Engineering Keywords: spin-spray coating; layer-by-layer; nanofiltration; reverse osmosis; fouling resistance; polyelectrolyte; multilayer; thin film composite

Online: 4 September 2024 (03:00:33 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0255.v1

The Potential Challenges and Limitations of Implementing Modern Office Design Features in Residential Spaces: A SPAR-4-SLR Approach

James Olabode Bamidele Rotimi, Taofeeq Durojaye Moshood, Funmilayo Ebun Rotimi

Subject: Engineering, Architecture, Building And Construction Keywords: Challenges; Home office; Limitations; Modern office design; Office buildings; Residential

Online: 3 September 2024 (23:34:54 CEST)

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The COVID-19 pandemic has significantly altered how people work, with an increasing number transitioning to working-from-home (WFH). This paradigm shift has raised various challenges in adapting living spaces to meet the needs of remote work. Dedicated workspaces or home offices need to be customised for creativity and productivity. Thus, this systematic literature review explores the potential challenges and limitations of implementing modern office design features in residential environments. The study synthesises findings from 108 peer-reviewed articles published within the last decade, focusing on ergonomics, productivity, work-life balance, and spatial constraints. The study found several challenges in translating office design features to home settings. Firstly, spatial limitations in residential areas often restrict the implementation of open-plan layouts and collaborative zones, which are hallmarks of modern office designs. Secondly, the integration of ergonomic furniture and adjustable workstations are limited by budget constraints and the dual-purpose nature of many home spaces. Furthermore, the review highlights the psychological challenges of maintaining work-life boundaries when professional and personal spaces overlap. Noise pollution and distractions emerge as significant factors impacting productivity in home offices, which contrasts controlled modern office environments. The review suggests that the complete replication of modern office design in homes may be impractical, a hybrid approach that adapts key features to residential constraints could enhance home office productivity. Potential solutions could include modular furniture designs, the simulation of collaborative spaces, and the development of noise-cancelling technologies specifically for home environments. This study contributes to the growing body of knowledge on remote work environments and provides valuable insights for enhancing work-life balance, environmental sustainability, and economic growth.

Preprint ARTICLE | doi:10.20944/preprints202409.0266.v1

Sensorless Detection of Mechanical Unbalance in Servodrive with Elastic Coupling

Tomasz Pajchrowski, Bartłomiej Wicher, Pawel Ewert

Subject: Engineering, Electrical And Electronic Engineering Keywords: unbalance; artificial neural network; two-mass system

Online: 3 September 2024 (23:33:24 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0264.v1

Toward Smart SCADA Systems in the Hydropower Plants through Integrating Data Mining-based Knowledge Discovery Modules

Gheorghe Grigoras, Razvan Garbea, Bogdan-Constantin Neagu

Subject: Engineering, Energy And Fuel Technology Keywords: smart SCADA; Knowledge Discovery; Data Mining; Clustering; Hydropower plants

Online: 3 September 2024 (23:31:41 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0263.v1

Flagellar Microswimmer with One-point Actuation: Effects of Non-uniform Mass and Elasticity on Propulsion

Moisés Bolívar-Vivas, Andrés Joaquín Serrano-Balbontín, Inés Tejado, Blas M. Vinagre

Subject: Engineering, Control And Systems Engineering Keywords: microrobot; swimmer; one-point actuation; flagellum; flexible; mass; elasticity; distribution; bioinspired

Online: 3 September 2024 (18:14:47 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0243.v1

Artificial Neural Networks and Ensemble Learning for Enhanced Liquefaction Prediction in Smart Cities

Yuxin Cong, Shinya Inazumi

Subject: Engineering, Civil Engineering Keywords: artificial neural networks; bagging technique; ensemble learning; geotechnical engineering; liquefaction prediction; machine learning in geology; smart cities; urban resilience

Online: 3 September 2024 (18:10:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0240.v1

Safeguarding Personal-Identifiable Information (PII) after Smartphone Pairing with Connected Vehicle

Jason W Carlton, Hafiz Malik

Subject: Engineering, Transportation Science And Technology Keywords: connected vehicles; connected vehicle architecture; data privacy; data security; infotainment system; personable identifiable information (pii); ride sharing; software; technology; rental vehicles

Online: 3 September 2024 (17:55:23 CEST)

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The integration of connected autonomous vehicles into the transportation system introduces significant enhancements in driving experience and convenience. Yet, it simultaneously raises important concerns regarding the security and privacy of passenger data. As individuals increasingly depend on these connected vehicles, particularly rental cars with advanced infotainment systems, safeguarding their personal information becomes a paramount imperative, presenting significant challenges that must be addressed to maintain user trust and comply with privacy regulations. This paper investigates risks associated with personal information stored in connected vehicle technology, emphasizing the importance of robust security and privacy practices. In the advent of cyber threats and the need for data protection, we examine a risk management framework (RMF) as suggested by NIST, which aims to address these quintessential concerns preemptively. Our research moves beyond the limitations of manual safeguarding methods, supporting the necessity for an advanced automated technical solution. To address these issues, we introduce and meticulously assess the efficacy of “Vehicle Inactive Profile Removal” (VIPR), an innovative technical solution conceived to actively eliminate the risks and potential oversights that stem from the prevalent tendency of renters to leave personal data unerased in the infotainment systems of rented connected vehicles. We provide a thorough evaluation of VIPR through various scenarios, including vehicle return to a rental depot, subsequent rentals, and ridesharing contexts. Our proof of concept includes an array of experiments to demonstrate how VIPR proficiently and autonomously removes previous renters’ “Inactive” profiles from a simulated infotainment system. The results highlight how VIPR constitutes a critical step towards enhancing the privacy and security of personal data, thereby promoting a safer, more responsible use of connected vehicle technology in society.

Preprint ARTICLE | doi:10.20944/preprints202409.0250.v1

Impact of Wetting and Drying Cycles on the Hydromechanical Properties of Soil and Stability of the Earth Infrastructure

Syed Samran Ali Shah, Kanishka Sauis Turrakheil, MUHAMMAD NAVEED

Subject: Engineering, Civil Engineering Keywords: wetting-drying cycles; soil water characteristics; saturated hydraulic conductivity; shear strength of soil; slope stability analysis

Online: 3 September 2024 (16:58:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0282.v1

A Novel Methodological Approach to Simulating the Growth of Photosynthetic Organisms Using Long-Term Meteorological Sequences: A Case Study of a Microalgae (Chlorella vulgaris)

Ousmane Wane, Luis F. Zarzalejo, Francisco Ferrera-Cobos, Ana A. Navarro, Rita X. Valenzuela

Subject: Engineering, Other Keywords: Long-term meteorological sequences; Simulation; Photosynthetic organisms; Wastewater treatment; High-rate algae pond

Online: 3 September 2024 (16:55:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0281.v1

Recovered Foam Impact Absorption Systems

Sara Marcelino-Sádaba, Pablo Benito Hernandez, Miguel Angel Martin Antunes, Pedro Maria Villanueva Roldan, Fernando Veiga

Subject: Engineering, Mechanical Engineering Keywords: foam; impact absorption; recycling; sustainability

Online: 3 September 2024 (16:55:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0249.v1

Research on Flicker Effect in Modern Light Sources Powered from Electrical Network

Romuald Masnicki, Janusz Mindykowski, Beata Palczynska, Dawid Werner

Subject: Engineering, Electrical And Electronic Engineering Keywords: light flicker; modern light sources; light flicker standards, light intensity measurement system

Online: 3 September 2024 (14:12:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0215.v1

IoT Integration of Failsafe Smart Building Management System

Hakilo Sabit, Thit Tun

Subject: Engineering, Electrical And Electronic Engineering Keywords: Internet of Things (IoT); Building Energy efficiency; Building Management System (BMS); MATLAB simulation model; Auxiliary bypass system; BMS Reliability; Smart buildings

Online: 3 September 2024 (11:52:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0214.v1

Curriculum Design and Sim2Real Transfer for Reinforcement Learning in Robotic Dual-Arm Assembly

Konstantin Wrede, Sebastian Zarnack, Robert Lange, Oliver Donath, Tommy Wohlfahrt, Ute Feldmann

Subject: Engineering, Control And Systems Engineering Keywords: Reinforcement learning; curriculum learning; simulation-to-reality; dual-arm robots; robotic assembly; peg-in-hole

Online: 3 September 2024 (11:50:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0143.v1

Development of Potential Slip Surface Identification Model for Active Deep-seated Landslide Sites: A Case Study in Taiwan

Shih-Meng Hsu, Chun-Chia Hsiung, Yu-Jia Chiu, Yi-Fan Liao, Jie-Ru Lin

Subject: Engineering, Civil Engineering Keywords: disturbed rock formation; landslide slip surface; hydraulic conductivity; principle component analysis; geological indicators

Online: 3 September 2024 (11:35:27 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.0184.v1

A Review of Vehicles for Fire Suppression

Osman Acar, Eija Honkavaara

Subject: Engineering, Mechanical Engineering Keywords: Wildfire; Firefighting technology; Firefighting vehicles

Online: 3 September 2024 (10:58:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0180.v1

An Approach On Building Envelope-isolation From Water Reinforcements And Their Sustainability In Traditional Residential Architecture

Reyhan Akat, Birgül çakıroğlu

Subject: Engineering, Architecture, Building And Construction Keywords: Isolation from water; Rain gutter; Eave; Roof; Material; Structure; Traditional housing; Sustainability

Online: 3 September 2024 (10:46:50 CEST)

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Roof and roofings built to protect the housing and homeowner from undesirable rainwater, have been seen an important structural element throughout history in the entire of housing. In this research, structural and spatial relationships between building envelope with isolation from water in traditional housing architecture are analyzed. Roof, eaves and rain gutters which are isolation from water items were investigated according to shapes, slope direction, materials, carrier systems and covering materials. The qualification of the roofing, eave and rain gutter elements which are equipment elements related to the comfort of the building envelope and the extent of changes in these elements were examined at the traditional housing level. Exemplary, the traditional housing in the city of Trabzon in Turkey were selected. During the completion process of the working, detailed aims related to structure-health reinforcements were specified with the relevant literature review. The chart form has been developed for compilation of information about the general characteristics of the housing in the research area and the building-health reinforcements within the aim of the research. Exemplary houses were selected by external observation technique and the data obtained as a result of observations, interview and determinations related to general characteristics and building-health reinforcements of these housing were handled into a chart form. By evaluating the data obtained; harmony and contrasts in system level practices, the dimensional properties of the elements at the spatial level, the greatness and accuracy levels preferred in various fittings, the harmony and contrasts in the materials, dimensions and practices of the elements at the system and spatial level, harmony and contrasts of applications of new opportunities at the level of building-health reinforcements in traditional housing, conclusions were drawn to identify special and general situations at the level of building-health reinforcements and to obtain information about the comfort requirements of traditional housing. Nowadays, where the health of the building, which is mostly ignored, is gaining importance day by day, concrete and applicable solution data are presented and interpreted for new designs to be made in this direction.

Preprint ARTICLE | doi:10.20944/preprints202409.0171.v1

Identifying High-Risk Patterns in Single-Vehicle, Single-Occupant Road Traffic Accidents: A Novel Pattern Recognition Approach

Tabea Fian, Georg Hauger

Subject: Engineering, Transportation Science And Technology Keywords: accident analysis; statistical methods; road safety; pattern recognition; accident prevention

Online: 3 September 2024 (09:51:52 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0208.v1

A New Concept of Reconfigurable Antenna Structure Based on an Array of RF-MEMS Switches

Massimo Donelli, Jacopo Iannacci, Mohammedhusen Manekiya

Subject: Engineering, Telecommunications Keywords: reconfigurable antennas; RF-MEMS; MEMS antennas; mm-wave antenna

Online: 3 September 2024 (09:46:24 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0216.v1

Data-Driven Sparse Sensor Placement Optimization on Wings for Flight-by-Feel: Bioinspired Approach and Application

Alex Hollenbeck, Atticus Beachy, Ramana Grandhi, Alexander Pankonien

Subject: Engineering, Aerospace Engineering Keywords: Optimization; Sparse Sensing; Flow Sensors; Flight Control; Fly-by-Feel; Artificial Hair Sensors; Data Reduction

Online: 3 September 2024 (09:05:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0182.v1

Multi-objective Optimization of Energy-Efficient Multi-stage, Multi-level Assembly Job Shop Scheduling

Yingqian Dong, Weizhi Liao, Bizhen Bao, Weigang Xu, Guodong Xu

Subject: Engineering, Control And Systems Engineering Keywords: multi-stage and multi-level; assembly job shop; energy-efficient scheduling; decoding design; Q-learning

Online: 3 September 2024 (07:29:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0053.v1

Unveiling the Fatigue Behavior of Lateral Piles with Open Cross-Sections in Cohesive Soils

José A. Pérez, Alberto Ponce-Torres, José D. Ríos, Estíbaliz Sánchez-González

Subject: Engineering, Civil Engineering Keywords: laterally loaded piles; thin-walled open-ended piles; fatigue loading; cyclic loading; pile foundations

Online: 3 September 2024 (05:11:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0098.v1

Demystifying DFT-Based Harmonic Phase Estimation, Transformation, and Synthesis

Marco Oliveira, Vasco Santos, André Saraiva, Aníbal Ferreira

Subject: Engineering, Electrical And Electronic Engineering Keywords: phase estimation; harmonic phase structure; harmonic magnitude and phase parametric modeling; harmonic signal processing

Online: 3 September 2024 (03:28:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0107.v1

Enhancing Virtual Reality Exposure Therapy for Social Anxiety Disorder Using Generative Adversarial Networks: A Personalized and Adaptive Approach

Samuel Duraivel

Subject: Engineering, Other Keywords: Virtual Reality Exposure Therapy (VRET); Social Anxiety Disorder (SAD); Generative Adversarial Networks (GANs); Personalized Therapy; Artificial Intelligence in Mental Health

Online: 3 September 2024 (02:48:04 CEST)

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