Perspectives in science最新文献_第10页

Analysis of multi cloud storage applications for resource constrained mobile devices 资源受限移动设备的多云存储应用分析

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.04.052

Rajeev Kumar Bedi , Jaswinder Singh , Sunil Kumar Gupta

引用次数: 10

Optimal allocation of solar based distributed generators in distribution system using Bat algorithm 基于Bat算法的太阳能分布式发电机组在配电网中的优化配置

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.04.048

Suresh Kumar Sudabattula, Kowsalya M

引用次数: 67

Design optimization of gating and feeding system through simulation technique for sand casting of wear plate 利用模拟技术对磨损板砂型铸造浇注系统进行了优化设计

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.03.001

Sachin L. Nimbulkar , Rajendra S. Dalu

{"title":"Design optimization of gating and feeding system through simulation technique for sand casting of wear plate","authors":"Sachin L. Nimbulkar , Rajendra S. Dalu","doi":"10.1016/j.pisc.2016.03.001","DOIUrl":"10.1016/j.pisc.2016.03.001","url":null,"abstract":"<div><p>Casting is a manufacturing process to make complex shapes of metal materials; during mass production, we may experience many defects, such as gas porosity, pin holes, blow holes, shrinkages and incomplete filling that may occur in sand casting. Porosity is one of the defects most frequently encountered in ductile iron casting. Porosity impacts cost by scrap loss and limits the use of cast parts in critical high strength applications. The amount of porosity is closely related to the parameter of sand casting process. The gating/riser system design plays a very important role for improving casting quality. Many researchers reported that 90% of the defects in casting are obtained only because of improper design of gating and feeding system. The main objectives were to study the existing design of gating and feeding system, to optimize the gating and feeding system using Auto-CAST X1 casting simulation software, to prepare the sand mold and cast the part, to compare the simulated result and experimental results, to reduce rejection rate and to enable the company to again start the production.</p></div>","PeriodicalId":92112,"journal":{"name":"Perspectives in science","volume":"8 ","pages":"Pages 39-42"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.pisc.2016.03.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83160033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 75

An efficient algorithm for distinct inversions and isomorphism detection in kinematic chains 一种高效的运动链不同逆和同构检测算法

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.03.022

Syed Shane Haider Rizvi , Ali Hasan , R.A. Khan

引用次数: 20

Sensibility of polyaniline nanofibers to biomarker of benzene recognized as a carcinogen 聚苯胺纳米纤维对致癌物质苯生物标志物的敏感性

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.04.053

Sarika Bukkawar , Nisha Sarwade , B.N. Thorat , H. Muthurajan

{"title":"Sensibility of polyaniline nanofibers to biomarker of benzene recognized as a carcinogen","authors":"Sarika Bukkawar , Nisha Sarwade , B.N. Thorat , H. Muthurajan","doi":"10.1016/j.pisc.2016.04.053","DOIUrl":"10.1016/j.pisc.2016.04.053","url":null,"abstract":"<div><p>Alarming situation of toxic substances such as benzene and its analogs in the environment and workplaces, making it important to monitor these chemicals and their metabolites in order to evaluate risk hazards and potential problems caused by exposure to toxic compounds. Benzene is omnipresent in usage across industries. International Agency for Research on Cancer (IARC) which is a part of World Health Organization (WHO) has classified Benzene as a human carcinogen. <em>trans-trans</em> Muconic acid (<em>tt</em>MA) is the most important biomarker of benzene for biomonitoring of its low level exposure. In this paper the sensing ability of polyaniline (PANI) to <em>tt</em>MA is investigated for development of cheap, portable and effective electrochemical biosensor. To take this ahead for biosensor device application, successful self-assembling of PANI nanofibers of 40–70nm range on SS 304 working electrode was achieved. Fourier transform infrared spectroscopy and X-ray diffraction was used to characterize the chemical structure of PANI. Morphology of sample was observed by field emission gun scanning electron microscopy (FEG-SEM). The detection potential of <em>tt</em>MA in phosphate buffer solution of pH 5.8 acting as a supporting electrolyte was found to be at 0.26V by linear sweep voltammetry.</p></div>","PeriodicalId":92112,"journal":{"name":"Perspectives in science","volume":"8 ","pages":"Pages 283-286"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.pisc.2016.04.053","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88299364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

CFD analysis of rewetting vertical nuclear fuel rod by dispersed fluid jet impingement 分散流体射流冲击重润湿垂直核燃料棒的CFD分析

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.04.010

Ajoy Debbarma, Krishna Murari Pandey, Deepak Sharma, Gautam Choubey

引用次数: 2

Simulation and parametric optimisation of thermal power plant cycles 火电厂循环仿真与参数优化

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.04.060

P. Ravindra Kumar , V. Ramachandra Raju , N. Ravi Kumar

{"title":"Simulation and parametric optimisation of thermal power plant cycles","authors":"P. Ravindra Kumar , V. Ramachandra Raju , N. Ravi Kumar","doi":"10.1016/j.pisc.2016.04.060","DOIUrl":"10.1016/j.pisc.2016.04.060","url":null,"abstract":"<div><p>The objective of the paper is to analyse parametric studies and optimum steam extraction pressures of three different (subcritical, supercritical and ultra-supercritical) coal fired power plant cycles at a particular main steam temperature of 600°C by keeping the reheat temperature at 537°C and condenser pressure at 0.09bar as constant. In order to maximize the heat rate gain possible with supercritical and ultra-supercritical steam conditions, eight stages of feed water heater arrangement with single reheater is considered. The system is optimized in such a way that the percentage exergetic losses are reduced for the increase of the exergetic efficiency and higher fuel utilization. The plant cycles are simulated and optimized by using <span>Cycle Tempo 5.0</span> simulation software tool. From the simulation study, it is observed that the thermal efficiency of the three different power plant cycles obtained as 41.40, 42.48 and 43.03%, respectively. The specific coal consumption for three different power plant cycles are 0.56, 0.55 and 0.54Tonnes/MWh. The improvement in feed water temperatures at the inlet of steam generator of respective cycles are 291, 305 and 316°C.</p></div>","PeriodicalId":92112,"journal":{"name":"Perspectives in science","volume":"8 ","pages":"Pages 304-306"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.pisc.2016.04.060","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73355243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 18

Testing of Dhoulath's method to speed up diagnose by separating up crying sound of a baby from normal heart beats – ‘An innovative time saving technique’ Dhoulath通过将婴儿哭声与正常心跳分离来加快诊断速度的方法的测试——“一项节省时间的创新技术”

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.01.012

J. Dhoulath Beegum, D. Chitraprasad

引用次数: 5

An Efficient Backbone Based Quick Link Failure Recovery Multicast Routing Protocol 一种高效的基于骨干的链路故障快速恢复组播路由协议

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.04.016

Deepika Vodnala , S. Phani Kumar , Srinivas Aluvala

{"title":"An Efficient Backbone Based Quick Link Failure Recovery Multicast Routing Protocol","authors":"Deepika Vodnala , S. Phani Kumar , Srinivas Aluvala","doi":"10.1016/j.pisc.2016.04.016","DOIUrl":"10.1016/j.pisc.2016.04.016","url":null,"abstract":"<div><p>MANET is a set of independent mobile devices which communicate through constrained wireless links over a relative bandwidth. Due to the mobility of devices, the topology of the network may change rapidly and unpredictably over time, making multicast routing and route maintenance a very crucial task. Plenty of protocols have been proposed for the construction of virtual backbone, but they have limitations in terms of control overhead, delay, throughput, energy consumption and mobility. As a part of multicast routing, virtual backbone construction has been proposed and classified into three different techniques: tree-based virtual backbone, cluster-based virtual backbone and dominating set-based virtual backbone. Upon this classification, plenty of protocols are available, and each protocol has some limitations in terms of control overhead, delay, throughput, energy consumption and mobility. Besides this, no existing backbone protocol has the scope of recovery of link failures. In order to overcome the limitations of existing protocols, our proposed protocol An Efficient Backbone Based Quick Link Failure Recovery Multicast Routing Protocol, it is a four phase protocol: Group Formation, Backbone Construction, On-demand Route Discovery and Route Maintenance. The main aim of the proposed protocol is to construct an efficient robust backbone to overcome the limitations of existing protocols and to provide a mechanism for the quick recovery of link failures by generating an alternate path from the point of failure to the destination, which can be adoptable in any sort of environment.</p></div>","PeriodicalId":92112,"journal":{"name":"Perspectives in science","volume":"8 ","pages":"Pages 135-137"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.pisc.2016.04.016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75527116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Experimental evidences of methanolic extraction of Cressa cretica Linn. on alloxan induced hyperglycemic Wistar rats cresa cretica Linn甲醇提取的实验证据。四氧嘧啶诱导的高血糖Wistar大鼠

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.04.027

B. Lalitha Kumari , K.P.N.V. Satya Sree , S.M. Roy Choudri , P. Naga Ajay Babu

{"title":"Experimental evidences of methanolic extraction of Cressa cretica Linn. on alloxan induced hyperglycemic Wistar rats","authors":"B. Lalitha Kumari , K.P.N.V. Satya Sree , S.M. Roy Choudri , P. Naga Ajay Babu","doi":"10.1016/j.pisc.2016.04.027","DOIUrl":"10.1016/j.pisc.2016.04.027","url":null,"abstract":"<div><p>In the present study, the physico-metabolic parameters measured were: serum insulin, serum lipid profile, serum biomarker enzymes and anti-oxidant enzymes, total cholesterol, HDL cholesterol, triglycerides, LDL cholesterol, VLDL cholesterol, total proteins, alanine transaminase (ALT), aspartate transaminase (AST), creatinine, insulin assay (RIA), for in vivo anti-oxidant activity of MECC was measured in liver tissue homogenate (LTH) by malondialdehyde (MDA), glutathione (GSH), superoxide dismutase (SOD) enzymes and histopathological examination of pancreas were also observed. Previously, the methonolic extract of <em>Cressa cretica Linn.</em> effect on alloxan induced hyperglycemic Wistar rats was proved by taking the parameters like body weight, blood glucose, glycogen content in liver and muscle. Oral administration of MECC (200mg/kg, 400mg/kg) for 28 days exhibited a significant reduction in blood glucose, serum ALT, AST, CR, lipid profile and hepatic MDA levels. The improvement of hepatic enzymes such as GSH, serum TP, HDL, insulin levels were also observed. The results of this work also suggest that MECC may possess anti-hyperglycemic and anti-oxidant property.</p></div>","PeriodicalId":92112,"journal":{"name":"Perspectives in science","volume":"8 ","pages":"Pages 179-182"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.pisc.2016.04.027","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75863082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2