New Approaches in Engineering Research Vol. 15最新文献

Study on Designing New Stilling Basin Model for Dam Pipe Outlet 大坝出口新型消力池模型设计研究

New Approaches in Engineering Research Vol. 15 Pub Date : 2021-09-30 DOI: 10.9734/bpi/naer/v15/13432d

H. Tiwari, Kamal Singh

引用次数: 0

An Advanced Approuch: One Holistic Vision of the Future Energy Systems 一种先进的方法:未来能源系统的整体愿景

New Approaches in Engineering Research Vol. 15 Pub Date : 2021-09-30 DOI: 10.9734/bpi/naer/v15/4213f

Capatina Octavian

{"title":"An Advanced Approuch: One Holistic Vision of the Future Energy Systems","authors":"Capatina Octavian","doi":"10.9734/bpi/naer/v15/4213f","DOIUrl":"https://doi.org/10.9734/bpi/naer/v15/4213f","url":null,"abstract":"The aging energy infrastructure, politically controlled fossil resources, the rise of renewable technologies, the geographical distribution feature of renewable energy, climate change exigencies, the increase in domestic electricity consumption have forced the power industry to examine the status and health of the electrical systems. The advancements in real-time processing and computing power made searching for new approach regarding energy systems possible. Some former solutions are partial, exceeded, or unclear like smart grid, enernet, and microgrid. In our turn, we proposed another view to the energy systems and, at the same time, a holistic vision, and an analogy with the autonomous functioning of the biological cells. In our view, the energy systems must be thought firstly as part of the nature; secondly the system must be conceived as a whole that includes consumers, generators, storage facilities, metering infrastructures, grids and rules; thirdly, to get safety and efficiency it must be modular/cellular and able to do its best as well as part of an ensemble as well as stand alone. To achieve this final require we have made an analogy with the DNA of the biological cell, and the result are the so-called Intelligent Energy Cells/Systems. Because the arrival of carbon-free energy in the future will be done through the massive use of solar energy, the advantages of this intermittent and fluctuating energy are presented, too.","PeriodicalId":184970,"journal":{"name":"New Approaches in Engineering Research Vol. 15","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123332240","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

Study on Manufacturing Based on Feature Recognition Using NX 基于NX特征识别的制造业研究

New Approaches in Engineering Research Vol. 15 Pub Date : 2021-09-30 DOI: 10.9734/bpi/naer/v15/10674d

I. Stǎnǎşel, F. Blaga, T. Buidoş

引用次数: 0

Performance Evaluation of Reinforced Geopolymer Concrete as Earthquake Resistant Composite 加筋地聚合物混凝土抗震复合材料性能评价

New Approaches in Engineering Research Vol. 15 Pub Date : 2021-09-30 DOI: 10.9734/bpi/naer/v15/12620d

N. B. Mahantesh

{"title":"Performance Evaluation of Reinforced Geopolymer Concrete as Earthquake Resistant Composite","authors":"N. B. Mahantesh","doi":"10.9734/bpi/naer/v15/12620d","DOIUrl":"https://doi.org/10.9734/bpi/naer/v15/12620d","url":null,"abstract":"With the increasing challenges of ground vibrations due to seismic activity and an ever-increasing threat possibility of blast loadings on structures, it has become more than a mere necessity to incorporate robust design strengths into structure without affecting the serviceability life. The performance of structural elements is well appreciated, when their ability to absorb and dissipate energy by post elastic deformations subjected to several cycles of these loading are naturally imbedded at low cost. Ductility of flexural element is the only chief governing property for healthy performance of structural element. Although numerous factors contribute towards ductility of Reinforced Geopolymer Concrete (RGPC), low calcium-based fly ash and GGBS have chemical proportions which make RGPC develop significant ductility along with steel reinforcement, when they are mixed in an intelligent way satisfying structural and economic conditions. In the present research work influence of low calcium fly ash, GGBS, River sand, M-sand, Steel Grade, manufactured fibers and natural fibers on ductile behavior of RGPC are studied by load testing 51 under reinforced flexural elements. Similar tests done by other researchers on the flexural ductilites of Ordinary Portland Cement based flexural elements indicate Reinforced Geopolymer Concrete Structural Elements are highly comparable and appreciated.","PeriodicalId":184970,"journal":{"name":"New Approaches in Engineering Research Vol. 15","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127411425","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: 1

Determining the Mechanism on Ventilation for Thermal Comfort in Residential Buildings: A Case of Government Housing Estates in Nigeria 住宅建筑热舒适通风机制的确定——以尼日利亚政府住宅小区为例

New Approaches in Engineering Research Vol. 15 Pub Date : 2021-09-30 DOI: 10.9734/bpi/naer/v15/4197f

Ayeni Conqueror Ayoariyo, A. Atolagbe

引用次数: 1

PID Gain Tuning for Robust Control of PMDC Motor with Tracking and Disturbance Rejection through H∞: A Recent Study 基于H∞跟踪和抗扰的PMDC电机鲁棒控制的PID增益整定研究

New Approaches in Engineering Research Vol. 15 Pub Date : 2021-09-30 DOI: 10.9734/bpi/naer/v15/8923d

Prashanth Venkatareddy, N. Prashanth

{"title":"PID Gain Tuning for Robust Control of PMDC Motor with Tracking and Disturbance Rejection through H∞: A Recent Study","authors":"Prashanth Venkatareddy, N. Prashanth","doi":"10.9734/bpi/naer/v15/8923d","DOIUrl":"https://doi.org/10.9734/bpi/naer/v15/8923d","url":null,"abstract":"Due to their great efficiency, simple mechanism, and low cost, permanent-magnet (PM) motors are used in a wide range of industrial control applications. In the majority of cases, either the plant model is incorrectly established or the plant characteristics are subject to change over time. In addition, most applications demand both good tracking and good disturbance rejection, which are two competing objectives. The controller must account for parameter fluctuations as well as ensure stable performance in the face of external disturbances, necessitating a robust control approach to controller design. To achieve the robustness requirements, a classical PID controller with no robustness requirements is supplemented with H optimization based gain tuning. The H(infty) optimization approach is used to develop a PID controller in this research. PID controller does not inherently provide enough robustness to internal and external disturbances. Different performance goals for tracking and disturbance rejection are defined and PID gains are tuned to meet the goals in H(infty) sense. For modelling and simulation, a commercial Maxon RE35 motor is chosen.","PeriodicalId":184970,"journal":{"name":"New Approaches in Engineering Research Vol. 15","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124334684","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

Performance Evaluation of Nonlinear IM/DD Optical OFDM with New SLM Scheme 基于新SLM方案的非线性IM/DD光OFDM性能评价

New Approaches in Engineering Research Vol. 15 Pub Date : 2021-09-30 DOI: 10.9734/bpi/naer/v15/13404d

Chhavi Sharma

引用次数: 0

Electrical Resistivity and Mechanical Properties of Tungsten Carbide Reinforced Copper Alloy Composites: Experimental Investigation 碳化钨增强铜合金复合材料的电阻率和力学性能:实验研究

New Approaches in Engineering Research Vol. 15 Pub Date : 2021-09-30 DOI: 10.9734/bpi/naer/v15/4577f

B. M. Girish, B. Basawaraj, B. Satish, D. Somashekar

{"title":"Electrical Resistivity and Mechanical Properties of Tungsten Carbide Reinforced Copper Alloy Composites: Experimental Investigation","authors":"B. M. Girish, B. Basawaraj, B. Satish, D. Somashekar","doi":"10.9734/bpi/naer/v15/4577f","DOIUrl":"https://doi.org/10.9734/bpi/naer/v15/4577f","url":null,"abstract":"The electrical, mechanical, and physical properties of Cu-WC composites are described in this paper. Copper is widely used as a material for electrical contacts on account of its high electrical and thermal conductivities, low cost and ease of fabrication. By stirring molten alloy to obtain vortex using a steel stirrer covered with alumina and rotating at 500 rpm, composites of copper alloy containing 0–8 weight percent WC were manufactured utilising the liquid metallurgical approach. The experimental results demonstrated that as the WC content in the composites increases, the density of the composites increases, which is consistent with the values calculated using the mixtures rule. Cu–WC composites' hardness and ultimate tensile strength improved as the WC concentration in the matrix increased, while ductility decreased. For ultimate tensile strength and hardness, a model analysis of composites was performed, and it was discovered that the approximate mechanics of materials prediction Paul model is consistent with experimental results. The experimental values were consistent with the theoretical results of electrical resistivity of composites estimated using the P.G Klemens model.","PeriodicalId":184970,"journal":{"name":"New Approaches in Engineering Research Vol. 15","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123299774","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

Rational Evaluation of Bone Grafts for Different Intraosseus and Heterotopic Implantations in Various Animal Models 骨移植在不同动物模型中不同骨内和异位植入的合理评价

New Approaches in Engineering Research Vol. 15 Pub Date : 2021-09-30 DOI: 10.9734/bpi/naer/v15/12617d

C. Weinand

引用次数: 0

Optimal Collector Grid Design for Wind Farm Based on Genetic Algorithm 基于遗传算法的风电场集热器网格优化设计

New Approaches in Engineering Research Vol. 15 Pub Date : 2021-09-30 DOI: 10.9734/bpi/naer/v15/6679d

P. R. Monteiro, T. T. Borges, André F. Schiochet

引用次数: 0