Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology最新文献_第2页

Impact of Material On Energy Efficiency of Distribution System 物料对配电系统能效的影响

Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology Pub Date : 2019-11-22 DOI: 10.33422/2nd.icrset.2019.11.790

P. Hrabovský

{"title":"Impact of Material On Energy Efficiency of Distribution System","authors":"P. Hrabovský","doi":"10.33422/2nd.icrset.2019.11.790","DOIUrl":"https://doi.org/10.33422/2nd.icrset.2019.11.790","url":null,"abstract":"The article focuses on technologies that are closely linked to the use of renewable energy sources. We are living at a time when the emphasis is on increasing the share of production and use of heat and electricity generated by technologies using the sun, wind, water and earth. By transforming energy from sources like the Sun and the Earth, we use solar, photovoltaic collectors, heat pumps and circulation systems. Energy production in these ways is limited, therefore the research and development of individual systems is pushing the possibilities of using renewable energy sources forward. The main objective of obtaining energy from renewable sources is to cover the energy performance of buildings and people’s requirements to ensure optimal thermal comfort with maximum use of energy from renewable sources. When designing the required technologies, it is necessary to emphasize the choice of construction material for individual parts of the energy system. If we want to extract energy from the earth it is necessary to design a material suitable for aggressive soil environment – the Earth’s shell. The negative impact of soil chemical and physical properties affects not only the material structure of a part of the technology, but also the overall efficiency of the energy system.","PeriodicalId":332246,"journal":{"name":"Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115329189","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

Frequency Analysis of Vibrations of Composite Sandwich Beams with Viscoelastic Core 粘弹性芯层复合材料夹层梁振动频率分析

Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology Pub Date : 2019-11-22 DOI: 10.33422/2nd.icrset.2019.11.781

Khadri Youcef, Tekili Sabiha, Karmi Yacine, Daya El Mostafa, Daouadji Ali

{"title":"Frequency Analysis of Vibrations of Composite Sandwich Beams with Viscoelastic Core","authors":"Khadri Youcef, Tekili Sabiha, Karmi Yacine, Daya El Mostafa, Daouadji Ali","doi":"10.33422/2nd.icrset.2019.11.781","DOIUrl":"https://doi.org/10.33422/2nd.icrset.2019.11.781","url":null,"abstract":"The present study is concerned with the dynamic analysis of sandwich beams, with a viscoelastic core between composite layers and subjected to a moving load. The governing equations are derived by application of Hamilton principle and solved by finite element method. The coupled system of equations is integrated numerically by the Newmark method. Facial composites are modeled using classical plate theory and the kernel using Timoshenko’s theory. This study deals with free and forced vibrations of the sandwich beams by considering the frequency according to the viscoelastic properties in frequency- domain and the numerical asymptotic method is employed in order to solve the complex eigenvalue problem. The influences of viscoelastic loss factor, orientation fiber of the composite layers and thickness ratio on the dynamic responses of sandwich beams are investigated. The results reported in this paper show that the viscoelastic loss factor has a significant effect on the vibration behavior involving the improvement of the damping of the structure. The influence of fiber orientation on vibration behavior showed that the damping of the structure could be improved by adopting a better configuration of the composite layers. The results obtained with the effect of the thickness ratio show that the sandwich structure has a greater dissipative vibratory energy capacity for the low viscoelastic thickness values.","PeriodicalId":332246,"journal":{"name":"Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128515198","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

Determination Of Proximate Composition And Crude Yeild Of Shrimp Shells(Peneaus Semisulcatus) 对虾壳(Peneaus semiulcatus)近似组成及粗产量的测定

Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology Pub Date : 2019-11-22 DOI: 10.33422/2nd.icrset.2019.11.777

Sutharshiny Sathyaruban, Shivatharsiny Yohi, Sivashanthini Kuganathan

{"title":"Determination Of Proximate Composition And Crude Yeild Of Shrimp Shells(Peneaus Semisulcatus)","authors":"Sutharshiny Sathyaruban, Shivatharsiny Yohi, Sivashanthini Kuganathan","doi":"10.33422/2nd.icrset.2019.11.777","DOIUrl":"https://doi.org/10.33422/2nd.icrset.2019.11.777","url":null,"abstract":"The present study was carried out to determine the proximate composition of green tiger prawn and to select the suitable solvent system for carotenoid extraction. Samples (P. semisulcatus) were purchased from the landsites and transported to the laboratory in an ice box. The whole shrimp were peeled manually, and the residues, consisting head, tail and shells are separated. The moisture content, total lipid, protein, and ash content were quantified using standard methods. Weight of extracted crude of shrimp shells and retention factor (Rf) for the shrimp shell powder were determined using different pure and mixed organic solvents. Moisture content of the fresh shrimp shells was found to be 76.40 ± 0.92 %. In the present study, quantification showed that the shrimp shells are significantly rich in ash content (25.52 ± 0.06 % in dry weight). Significantly (p < 0.05) the highest crude yield of 10.24 ± 0.02 % was obtained from shrimp shells, when the dried shrimp shells powder was dissolved with the mixture of acetone and ethanol (1:1) than the other solvents. The lowest crude yield (2.32 ± 0.01 %) was extracted with ether. The highest Rf was obtained when the shrimp shell crude was dissolved with the mixture of acetone and ethanol (1:1). It can be recommended from our findings that the dried shrimp shells of Peneaus semisulcatus would be directly utilized for formulations of poultry animal feeds and sea cucumber juvenile feeds due to its high ash content. The mixture of the acetone and ethanol (1:1) would be the better choice for obtaining the highest crude yield from the shrimp shells.","PeriodicalId":332246,"journal":{"name":"Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124275869","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

Application of Optimization Based Finite Element Model Updating Method On 3d Printed Model Structures 基于优化的有限元模型更新方法在3d打印模型结构中的应用

Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology Pub Date : 2019-11-22 DOI: 10.33422/2nd.icrset.2019.11.780

Mohammed Kashama Guzunza, O. Ozcelik, U. Yucel, Ozgur Girgin

{"title":"Application of Optimization Based Finite Element Model Updating Method On 3d Printed Model Structures","authors":"Mohammed Kashama Guzunza, O. Ozcelik, U. Yucel, Ozgur Girgin","doi":"10.33422/2nd.icrset.2019.11.780","DOIUrl":"https://doi.org/10.33422/2nd.icrset.2019.11.780","url":null,"abstract":"Nowadays it becomes trend in studying of dynamic behavior on complex structure. Model updating is one of the tools developed for verifying accuracy of finite element models. In this paper, method for computing model updating on finite element model and effective the experimental modal analysis of structural systems is developed. The identification method developed in this study is based on time-domain system identification numerical techniques. The case study considered in this work is a 3D printed structure that be modeled as a two-story shear building system with irregular torsion. A preliminary numerical model of the two-story shear building system is developed by using SAP2000 and the experimental modal parameters data are collected in the laboratory buy some test then are modeled by Artemis modal pro. After obtaining the results from numerical modal and experimental modal, it was brought to FEMtools software to improve the match between the dynamic properties of an initial structure and the experimentally estimated modal data for updating. After updating, it’s shown that optimization was done, that some unknown material parameters (such as mass density and young modulus) of materials and/or boundary conditions were optimized by FEMtools Optimization that provides the possibility to perform design optimization on updated finite element models.","PeriodicalId":332246,"journal":{"name":"Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127545859","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

Quantitative Analysis Of Trace Metal In Water And Soft Tissues Of Balanus Amphitrite In Nandikadal Lagoon, Sri Lanka 斯里兰卡南迪卡达尔泻湖水和两栖动物软组织中微量金属的定量分析

Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology Pub Date : 2019-11-22 DOI: 10.33422/2nd.icrset.2019.11.778

Sivashanthini Kuganathan, Dhanushka Dilini Jayaweera Shivatharshini Yohi, Kuttithamby Gunaalan

{"title":"Quantitative Analysis Of Trace Metal In Water And Soft Tissues Of Balanus Amphitrite In Nandikadal Lagoon, Sri Lanka","authors":"Sivashanthini Kuganathan, Dhanushka Dilini Jayaweera Shivatharshini Yohi, Kuttithamby Gunaalan","doi":"10.33422/2nd.icrset.2019.11.778","DOIUrl":"https://doi.org/10.33422/2nd.icrset.2019.11.778","url":null,"abstract":"Due to long–term military activities carried out in Nandikadal lagoon situated at Mullaitivu, Sri Lanka, there are high possibilities to impact water and biota with heavy metals. Balanus amphitrite (Barnacles) has been found as a strong candidate for biomonitoring of trace metals. Therefore, the present study describes the impacts of trace metal pollution on water and the soft tissues of Balanus amphitrite. Water samples and barnacles were collected from two locations of the lagoon for four months during the dry and wet seasons. Quantitative analysis of trace metals (Cd, Cu, Cr, Pb and Zn) were detected in the water and tissue samples using flame atomic absorption spectrometry. Cd, Cr, Pb and Cu found in tissues of barnacles were several times higher than the International recommended level except for Zn. The concentration of Pb in tissues of barnacles showed a significant (p < 0.05) spatial variation. The Cd and Cu concentrations obtained in soft tissues showed significant (p < 0.05) seasonal variations. The concentration of Cr in water showed a significant (p < 0.05) spatial variation and other trace metals (Pb,Cd) except Zn, showed significant (p < 0.05) seasonal variations. There were significant positive correlations between water and soft tissues with respect to Cd (p=0.000 & r = 0.893) and Pb (p=0.002 & r=0.435). Zn found in samples showed negative correlation between water and soft tissues. According to this results Balanus amphitrite has an ability to accumulate trace metals several times greater than in the lagoon water. Therefore, Balanus amphitrite is a strong net–accumulator of Cd, Pb, Zn, Cu, Cr. Hence, it is a good choice to be used as a bioindicator organism to find the level impact of trace metal contamination.","PeriodicalId":332246,"journal":{"name":"Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123719578","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

Identifying Effective Safety Planning Tasks for Construction Management 确定施工管理中有效的安全规划任务

Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology Pub Date : 2019-11-08 DOI: 10.33422/2nd.rsetconf.2019.09.620

Kang, Sang Hun Kim, D. Young

引用次数: 0

Estimation of Solar Power Generation of aquavoltaic System through Field test and Simulations 通过现场试验和模拟估算光伏系统的太阳能发电量

Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology Pub Date : 2019-11-08 DOI: 10.33422/2nd.rsetconf.2019.09.622

Geun Ho Gim, Deok Sung Kim, Bong suck Kim, Sung-Gu Kang, C. Lim

引用次数: 0

Selection of Access Network using Cost Function Technique in Heterogenous Network 基于成本函数技术的异构网络接入网选择

Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology Pub Date : 2019-11-08 DOI: 10.33422/2nd.rsetconf.2019.09.621

Abdullah H. Al-Ghushami, Abdulghani Ali Ahmed

引用次数: 0

The Effect of Tartaric Acid New Derivatives against the Multidrug Resistant Opportunistic Pathogenic Soil Strains of Pseudomonas Fluorescens 酒石酸新衍生物对多药耐药荧光假单胞菌土壤条件致病性菌株的影响

Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology Pub Date : 2019-11-08 DOI: 10.33422/2nd.rsetconf.2019.09.618

B. Babayan, A. Mikaelyan, Nona Asatryan, S. A. Bagdasaryan, M. Melkumyan

引用次数: 0

A Study on the Effects of Fiber Orientation on Woven Glass Fiber Composite Structures 纤维取向对编织玻璃纤维复合材料结构影响的研究

Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology Pub Date : 2019-11-08 DOI: 10.33422/2nd.rsetconf.2019.09.619

Rokesh Laishram, Bisheshwar H, Shivakumar N.D, Bharadwaj Amrutur, T. Reddy

{"title":"A Study on the Effects of Fiber Orientation on Woven Glass Fiber Composite Structures","authors":"Rokesh Laishram, Bisheshwar H, Shivakumar N.D, Bharadwaj Amrutur, T. Reddy","doi":"10.33422/2nd.rsetconf.2019.09.619","DOIUrl":"https://doi.org/10.33422/2nd.rsetconf.2019.09.619","url":null,"abstract":". Scholars have studied hybrid composites for decades in the search of finding some good outcome which could be used for different purposes. The present study is focused on studying the effects of fiber orientation through mechanical testing on coupons made according to ASTM standards and through dropped weight test on tubes made of the same configuration. Initially, the tensile experiments of laminas; normal [0/90] and oriented [+45/45] are conducted as a preliminary study and a distinctive behaviour could be seen. The oriented one shows low tensile strength and low modulus but very high failure strains while the other one having high tensile strength and modulus but low failure strain. In the laminate of 3 plies [(0/90) 3 ] and [(0/90)/(+45/-45)/(0/90)], upon comparing the results, it is found that the tensile and compressive stress-strain results are almost similar but the shear experimental result shows some interesting behaviour due to the addition of a (+45/-45)ply in the middle of the later laminate. Axial Dropped weight tests on circular tubes made of the same configuration are also conducted for comparing the energy absorption characteristics and failure behaviours.","PeriodicalId":332246,"journal":{"name":"Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129068535","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