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Numerical Investigation of Magnetohydrodynamic Flow of Reiner– Philippoff Nanofluid with Gyrotactic Microorganism Using Porous Medium 多孔介质中陀螺微生物对Reiner - Philippoff纳米流体磁流体动力流动的数值研究
World Earthquake Engineering Pub Date : 2023-07-11 DOI: 10.37394/232025.2023.5.8
S. Lakshmi, S. Sreedhar, S. Devi
{"title":"Numerical Investigation of Magnetohydrodynamic Flow of Reiner– Philippoff Nanofluid with Gyrotactic Microorganism Using Porous Medium","authors":"S. Lakshmi, S. Sreedhar, S. Devi","doi":"10.37394/232025.2023.5.8","DOIUrl":"https://doi.org/10.37394/232025.2023.5.8","url":null,"abstract":"Nanoparticles facilitate the enrichment of heat transmission, which is crucial in many industrial and technical phenomena. The suspension of nanoparticles with microbes is another intriguing study area that is pertinent to biotechnology, health sciences, and medicinal applications. In the dispersion of nanoparticles, the conventional non-Newtonian fluid Reiner-Philippoff flows across a stretching sheet, which is examined in this article using numerical analysis. This study investigates the numerical investigation of Arrhenius reaction, heat radiation, and vicious variation variations on a Reiner-Philippoff nanofluid of MHD flow through a stretched sheet. Thus, for the current nanofluid, nanoparticles and bio-convection are highly crucial. The set of nonlinear differential equations is translated into Ordinary Differential Equations (ODEs) utilizing the requisite translation of similarities. These collected simple ODE are solved using the MATLAB computational tool bvp4c method. The graphical results for the velocity, concentration, motile microorganisms, and temperature profile are defined using the thermophoresis parameter and the Brownian motion respectively. Consider a tube containing gyrotactic microbes and a regular flow of nanofluid which is electrically conducted through a porous stretched sheet surface. This nonlinear differential problem is solved by a hybrid numerical solution method using fourth-order Runge-Kutta with shooting technique. The optimization method also performs well in terms of predicting outcomes accurately. As a result, the research applies the Bayesian Regularization Method (BRM) to improve the accuracy of the prediction results. Physical constraints are plotted against temperature, velocity, concentration, and microorganism profile trends and they are briefly described.","PeriodicalId":52482,"journal":{"name":"World Earthquake Engineering","volume":"94 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90981100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Mutual Effect Study of Horizontal and Vertical Loads on the Elastic Tank Partially Filled with Liquid 部分充液弹性罐水平与垂直荷载相互作用研究
World Earthquake Engineering Pub Date : 2023-06-26 DOI: 10.37394/232025.2023.5.6
O. Sierikova, E. Strelnikova, D. Kriutchenko, I. Hariachevska
{"title":"The Mutual Effect Study of Horizontal and Vertical Loads on the Elastic Tank Partially Filled with Liquid","authors":"O. Sierikova, E. Strelnikova, D. Kriutchenko, I. Hariachevska","doi":"10.37394/232025.2023.5.6","DOIUrl":"https://doi.org/10.37394/232025.2023.5.6","url":null,"abstract":"Modern equipment elements in the energy, chemical industry, transport, aviation, and space engineering work under conditions of increased technological loads, at high temperatures and pressure levels. At the same time, the equipment is usually exposed to external loads of various natures. Hydroelastic phenomena must also be taken into account in designing and modernizing tanks and storage facilities for flammable and combustible substances. Flammable and combustible liquid accumulation leads to the increased environmental and fire hazard of such objects. The possible dangerous liquid leakage and tank depressurization negatively affect the surrounding area environment state. A fire in the tank is one of the most dangerous emergencies that could lead both to significant material and environmental damage and to human casualties. The paper treats the environmental hazards reducing problem from liquid hydrocarbon spills from storage tanks, which lead to destructive effects on all environment components especially during emergency situations. It has been established for sufficiently thin tank elastic walls, the fundamental frequency during coupled oscillations could be much lower than the frequency of the fluid in the shell with rigid walls. As the thickness of the tank wall increases, this effect becomes insignificant, and the lower oscillation frequency of the shell with liquid approaches the oscillation frequency of the liquid in a rigid tank. Parametric resonance and sub-resonance effects have been treated.","PeriodicalId":52482,"journal":{"name":"World Earthquake Engineering","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89813907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advanced Manufacturing System 先进制造系统
World Earthquake Engineering Pub Date : 2023-05-24 DOI: 10.37394/232025.2023.5.5
D. Ghelase, L. Daschievici
{"title":"Advanced Manufacturing System","authors":"D. Ghelase, L. Daschievici","doi":"10.37394/232025.2023.5.5","DOIUrl":"https://doi.org/10.37394/232025.2023.5.5","url":null,"abstract":"In order to address the present-day changes and tendencies, the industrial enterprise has advanced in its manner of approaching the manufacturing processes by performing a high integration of operations, functions and compartments. One can say that we are dealing with a single structure, with no organising levels, of the enterprise which reacts to inputs and manufactures the requested product by almost immediately adapting to the customers’ requirements or to the requirements of other interested parties.","PeriodicalId":52482,"journal":{"name":"World Earthquake Engineering","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76591444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Selection of Organizational Structure of the Company in the Period of Digital Transformation Using the SCARF Model 基于围巾模型的数字化转型时期公司组织结构选择
World Earthquake Engineering Pub Date : 2023-04-27 DOI: 10.37394/232025.2023.5.4
N. Mamedova, Elena I. Belyakova, A. Urintsov
{"title":"Selection of Organizational Structure of the Company in the Period of Digital Transformation Using the SCARF Model","authors":"N. Mamedova, Elena I. Belyakova, A. Urintsov","doi":"10.37394/232025.2023.5.4","DOIUrl":"https://doi.org/10.37394/232025.2023.5.4","url":null,"abstract":"The article is devoted to the problem of selecting the organizational structure of the company during its implementation of digital transformation of business processes. The hypothesis of the study was that consideration of the needs of decision-makers can and should influence the choice of organisational structure changes during the transition to digital transformation of business processes. The decision makers for managing the integration of digital technologies into key aspects of a company's business activities have been shown to be CIOs. Motivational filters that characterize the needs of CIOs according to the SCARF model were presented in a hierarchical combination along with the types of company strategies that can be implemented during the digital transformation of business processes. The SCARF model, the Saaty hierarchy analysis method and the mixed-methods strategy provided the methodological basis for the study. The results demonstrate a justified choice of optimal organizational structure based on the factors of organizational behavior of IT directors and strategic priorities of the company. The presented results can be used to justify the decision to change the organizational structure of the company and to assess the social needs of decision makers.","PeriodicalId":52482,"journal":{"name":"World Earthquake Engineering","volume":"106 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79181769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical Study on Wind Pressures Caused by the Variation of the Rounding Radii of the Industrial Shed Eaves 工业棚屋屋檐圆角半径变化引起的风压数值研究
World Earthquake Engineering Pub Date : 2023-04-25 DOI: 10.37394/232025.2023.5.2
Guilherme S. Teixeira, M. de Campos
{"title":"Numerical Study on Wind Pressures Caused by the Variation of the Rounding Radii of the Industrial Shed Eaves","authors":"Guilherme S. Teixeira, M. de Campos","doi":"10.37394/232025.2023.5.2","DOIUrl":"https://doi.org/10.37394/232025.2023.5.2","url":null,"abstract":"This work approached a typical industrial shed with varied rounded eaves, which is pointed out, in the few papers on it, as favorable to structural safety against the action of the winds. Since the literature has neglected this building configuration, the external pressure coefficients were obtained by CFD with the aid of the Ansys Workbench software, applying tetrahedral meshes in the domain discretization. Furthermore, the boundary layer around the building was modeled for greater accuracy in data capture. Using the RNG K-Epsilon model, were determined the turbulent flow effects. The results indicated a reduction in the pressure coefficients in the most sensitive regions and prone to accidents caused by wind on the roof. Finally, the flow pattern can be measured using the presented velocity fields.","PeriodicalId":52482,"journal":{"name":"World Earthquake Engineering","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78084192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical Simulation in the Wind Action Analyses in Logistic Sheds with a Bridge Vent 桥式通风口物流棚风作用分析的数值模拟
World Earthquake Engineering Pub Date : 2023-04-25 DOI: 10.37394/232025.2023.5.3
L. Mendes, M. de Campos
{"title":"Numerical Simulation in the Wind Action Analyses in Logistic Sheds with a Bridge Vent","authors":"L. Mendes, M. de Campos","doi":"10.37394/232025.2023.5.3","DOIUrl":"https://doi.org/10.37394/232025.2023.5.3","url":null,"abstract":"Using Ansys Fluid Flow software, a numerical investigation was to study the wind distribution around logistic sheds with a bridge vent. Then, were considered several wind directions - direct approaching, oblique, oblique opposing, lateral, and opposing - and neighborhood conditions. The Shear Stress Transport turbulence model and rectangular mesh were employed. The application validation of the CFD technique occurred in the logistic shed without a bridge vent, and the results showed good concordance with the literature. Results analyzed areas characterized by suction and overpressure, as well as the attachment points and the recirculation zones in the flow visualization.","PeriodicalId":52482,"journal":{"name":"World Earthquake Engineering","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91363700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sensorless Adaptive Observers for Linearly Parameterized Class of Induction Machine 线性参数化感应电机类无传感器自适应观测器
World Earthquake Engineering Pub Date : 2023-04-10 DOI: 10.37394/232025.2023.5.1
A. Chouya
{"title":"Sensorless Adaptive Observers for Linearly Parameterized Class of Induction Machine","authors":"A. Chouya","doi":"10.37394/232025.2023.5.1","DOIUrl":"https://doi.org/10.37394/232025.2023.5.1","url":null,"abstract":"In this paper a new adaptive flux, speed, load torque and rotor resistance observer is proposed for induction machine drive system. The structure of the proposed observer is simple and it is able to give rise to different observers among which adaptive high gain and adaptive sliding mode. We adopt a mild change of coordinates that allows to easily design of adaptive observer. Computer simulation results verify the validity of the proposed estimation algorithm.","PeriodicalId":52482,"journal":{"name":"World Earthquake Engineering","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79342090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Aerodynamic Study and Design of Fixed Wing and Multi-copter Combination 固定翼与多旋翼组合的气动研究与设计
World Earthquake Engineering Pub Date : 2022-12-31 DOI: 10.37394/232025.2022.4.12
Mohamed Alhammadi, Mehran Alavi, Ali Alameri, Sharul Sham Bin Dol
{"title":"Aerodynamic Study and Design of Fixed Wing and Multi-copter Combination","authors":"Mohamed Alhammadi, Mehran Alavi, Ali Alameri, Sharul Sham Bin Dol","doi":"10.37394/232025.2022.4.12","DOIUrl":"https://doi.org/10.37394/232025.2022.4.12","url":null,"abstract":"This project aims to design a hybrid drone with fixed wing for the stable cruising as well as multi-copters for the vertical take-off and landing (VTOL) operations. Drones are utilized for number of applications leading from transportation to the surveillance purposes. Some drones are popular for their stable operation, while other for optimum landing and takeoff. Therefore, numerical analysis was performed on propeller, landing gear as well as on whole structure of the drone. The observed result from CFD analysis show that the velocity distribution had maximum velocity of 40 m/s at the mid span of the drone. In addition, the maximum stress obtained was on the landing gear with approximate value of 185 MPa which is due to the weigh and payload of the drone. The final model was built after the analytical and numerical analysis in order to achieve sustainable and reliable prototype.","PeriodicalId":52482,"journal":{"name":"World Earthquake Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90938076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ant Bee Colony for Automated black-box testing of RESTful API 蚁群用于RESTful API的自动化黑盒测试
World Earthquake Engineering Pub Date : 2022-12-31 DOI: 10.37394/232025.2022.4.10
S. Ahmed, A. Hamdy
{"title":"Ant Bee Colony for Automated black-box testing of RESTful API","authors":"S. Ahmed, A. Hamdy","doi":"10.37394/232025.2022.4.10","DOIUrl":"https://doi.org/10.37394/232025.2022.4.10","url":null,"abstract":"Recently, RESTful APIs are widely utilized in a variety of web applications; developers utilize Restful APIs as a blacked-out component in micro-services. Black box testing for Restful APIs is essential as neither of the API’s source code nor its compiled binary is always available for public access. A handful number of research studies were conducted for the automatic generation of test suite for RESTful APIs based on black box testing. However, to our knowledge, none of them considered the test coverage criteria or the test suite optimization. This paper proposed adapting the Artificial Bee Colony (ABC) swarm intelligence algorithm for the automatic generation of test suites for Restful APIs based on Open API Specification (OAS); whilst also maximizing the API test coverage (path, operation, parameter, input value and status code). Experiments were conducted on six APIs that differ from each other in the number of routes, operation types, input values, and how well the API is documented. The experiments showed that the ABC algorithm can generate test suites that achieve high coverage criteria.","PeriodicalId":52482,"journal":{"name":"World Earthquake Engineering","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78508146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
COVID -19 Pandemic Effect on the Solar Irradiance: Case Study Ma`an Development Area 新冠肺炎疫情对太阳辐照度的影响——以马安开发区为例
World Earthquake Engineering Pub Date : 2022-12-29 DOI: 10.37394/232025.2022.4.9
Ahlam. M. Alsaidat, Mohamed Reda Ramadan Gomaa
{"title":"COVID -19 Pandemic Effect on the Solar Irradiance: Case Study Ma`an Development Area","authors":"Ahlam. M. Alsaidat, Mohamed Reda Ramadan Gomaa","doi":"10.37394/232025.2022.4.9","DOIUrl":"https://doi.org/10.37394/232025.2022.4.9","url":null,"abstract":"Solar Photovoltaic (PV) Panels are converting solar radiation into an electrical form of energy, the performance, and efficiency of PV Panels are affected by several factors including environmental factors represented by air pollutants) typically includes PM10, fine PM2.5, NOx, Sox, and dust), as many studies have found that the efficiency of PV panels cell decrease when the concentration of air pollutant increase, in these study Air pollutant concentration and solar radiation data, were collected during the COVID-19 Pandemic, the result showed that a huge decrease in air pollutant concertation in Jordanian cities and slightly change in the percentage of solar radiation in study area MDA, the recommend to do the study again in an industrial or densely populated area, where pollution rates will be greater, which means a greater impact on the efficiency of solar PV Panels.","PeriodicalId":52482,"journal":{"name":"World Earthquake Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79264693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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