Perspectives in science最新文献_第9页

Hindi vowel classification using QCN-MFCC features 基于QCN-MFCC特征的印地语元音分类

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.01.010

Shipra Mishra, Anirban Bhowmick, Mahesh Chandra Shrotriya

引用次数: 10

Random multiple key streams for encryption with added CBC mode of operation 随机多密钥流加密与添加CBC模式的操作

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.03.007

P. Penchalaiah, K. Ramesh Reddy

{"title":"Random multiple key streams for encryption with added CBC mode of operation","authors":"P. Penchalaiah, K. Ramesh Reddy","doi":"10.1016/j.pisc.2016.03.007","DOIUrl":"10.1016/j.pisc.2016.03.007","url":null,"abstract":"<div><p>There are many cryptographic systems that use complex operations involving substitutions and permutations to produce resistant ciphertext, even if the level of the security of these cryptosystems are good, there should be trade-off between security level and operation cost, and the ever increasing virtual infrastructure and mobile, cloud computing technologies creating much more complexities and demanding cost effective and secure cryptographic algorithms. A cryptographic system is said to be secure if the ciphertext does not contain adequate details to find out the matching plaintext. In fact, one can produce unbreakable ciphertext by supplying randomly generated key on each bit of data that is mathematically infeasible to break. Since different random bits or keys would not lead to any repeating patterns.</p><p>For the first time, in this paper, we present a construction method to generate multiple random keys from a core-key with highest possible immunity to crack. We are with a particular emphasis on novel technique to secure user data, we have designed a secure and cost effective new cryptosystem called Rbits (Random bits) cypher. In different directions we identify that Rbits having highest immunity to crack and presenting various analysis tests in support from this viewpoint and the analyzed results are reported.</p></div>","PeriodicalId":92112,"journal":{"name":"Perspectives in science","volume":"8 ","pages":"Pages 57-60"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.pisc.2016.03.007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86628507","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

Simultaneous consideration of TQM and TPM influence on production performance: A case study on multicolor offset machine using SD Model TQM和TPM对生产性能的影响&以SD型☆多色胶印机为例

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.01.005

Nagaraj H. Kamath , Lewlyn L.R. Rodrigues

引用次数: 20

Evaluation of engine performance and emission with methyl ester of Karanja oil Karanja油品甲酯对发动机性能及排放的评价

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.04.040

Shikha Gangil, Ranjana Singh, Priyanka Bhavate, Divya Bhagat, Bharat Modhera

{"title":"Evaluation of engine performance and emission with methyl ester of Karanja oil","authors":"Shikha Gangil, Ranjana Singh, Priyanka Bhavate, Divya Bhagat, Bharat Modhera","doi":"10.1016/j.pisc.2016.04.040","DOIUrl":"10.1016/j.pisc.2016.04.040","url":null,"abstract":"<div><p>Biodiesel has been considered as potential alternative to petroleum diesel with the renewable origin for the existing compression ignition engine. The main objective of the present work is evaluating performance and emission characteristics of diesel engine for various blends (B20, B40, B60, B80 and B100) of Karanja biodiesel and commercial diesel. The experimental investigation was carried out in IC (internal combustion) at variable loads and compared with conventional diesel fuel with respect to engine performance parameters i.e. brake specific fuel consumption (BSFC), brake specific power consumption (BSEC), brake thermal efficiency (η-B.Th), for varying load conditions. The results obtained indicated the better fuel properties and engine performance at B40. For all cases, BSFC reduced with increase in load. It can be observed that the BSEC for various blends is lower as compared with that of diesel fuel. The availability of oxygen in the Karanja oil methyl ester-diesel fuel blend may be the reason for the lower BSEC. Brake thermal efficiency is increased due reduced heat loss with increased in load. It was found that the emission level of CO and HC level decreased with increased in blend proportion in diesel fuel. NO<sub>x</sub> emission increased with increase in blend proportion in diesel fuel.</p></div>","PeriodicalId":92112,"journal":{"name":"Perspectives in science","volume":"8 ","pages":"Pages 241-243"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.pisc.2016.04.040","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79470195","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: 15

Introduction to porous spinel for refractory (high temp) material 介绍多孔尖晶石耐火(高温)材料

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.01.007

Kumar Saurav, Manas Ranjan Majhi, Vinay Kumar Singh

引用次数: 1

Crushed rock sand – An economical and ecological alternative to natural sand to optimize concrete mix 碎石砂-一种经济、生态的天然砂替代品，用于优化混凝土配合比☆

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.04.070

Sanjay Mundra , P.R. Sindhi , Vinay Chandwani , Ravindra Nagar , Vinay Agrawal

引用次数: 78

Energy loss minimization through peak shaving using energy storage 通过使用储能调峰使能量损失最小化

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.04.022

Vaiju Kalkhambkar, Rajesh Kumar, Rohit Bhakar

引用次数: 49

Effect of using fly ash as alternative filler in hot mix asphalt 粉煤灰在热拌沥青中替代填料的效果

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.04.061

Raja Mistry , Tapas Kumar Roy

引用次数: 86

Suitability of rubber concrete for railway sleepers 铁路轨枕橡胶混凝土的适用性

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.01.011

Afia S. Hameed, A.P. Shashikala

引用次数: 40

Comparison on effect of EDTA and citrate mediated on luminescence property of Eu3+ doped YPO4 nanoparticles EDTA和柠檬酸盐对Eu3+掺杂YPO4纳米粒子发光性能影响的比较

Perspectives in science Pub Date : 2016-09-01 DOI: 10.1016/j.pisc.2016.04.047

Heikham Farida Devi, Thiyam David Singh

{"title":"Comparison on effect of EDTA and citrate mediated on luminescence property of Eu3+ doped YPO4 nanoparticles","authors":"Heikham Farida Devi, Thiyam David Singh","doi":"10.1016/j.pisc.2016.04.047","DOIUrl":"10.1016/j.pisc.2016.04.047","url":null,"abstract":"<div><p>Nanoparticles of Eu<sup>3+</sup> doped YPO<sub>4</sub> have been prepared by co-precipitation method. The structure, morphology, composition and photoluminescence were characterized by X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS), IR Spectroscopy, and Scanning electron microscopy (SEM) and Photoluminescence spectroscopy (PL). In this method EG was used as a solvent, tri sodium citrate dihydrate and EDTA were used as a complexing agent. X-ray diffraction results show that the nanoparticles are crystalline in tetragonal structure and the presence of two phases, tetragonal and hexagonal phase for citrate mediated and EDTA complexed nanoparticles. The SEM image shows spherical nanoparticles which are non-agglomerated and highly dispersible in water. With the addition of citrate and EDTA, there is a slightly shift towards the lower wavelength in emission peaks. A broad peak at ̴250nm is observed due to the Eu<img>O charge transfer band in the excitation spectra. Emission intensity decreases with complexing agent because of decrease of particle size as well as decrease of number of Eu<sup>3+</sup> activators per unit volume. The emission spectrum of Eu<sup>3+</sup>doped YPO<sub>4</sub> nanoparticles clearly shows f–f transitions of Eu<sup>3+</sup>.</p></div>","PeriodicalId":92112,"journal":{"name":"Perspectives in science","volume":"8 ","pages":"Pages 267-269"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.pisc.2016.04.047","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81325021","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