检索结果-南通市图书馆

维普期刊数据库

Role of MgF2 addition on high energy ball milled kalsilite:Implementation as dental porcelain with low temperature frit

在线全文

学校读者我要写书评

暂无评论

Journal of Advanced Ceramics 2014年第4期3卷 332-338页

作者： Pattem Hemanth KUMAR Abhinav SRIVASTAVA Vijay KUMAR Nandini JAISWAL Pradeep KUMAR vinay Kumar singh Department of Ceramic Engineering Indian Institute of Technology(BHU)VaranasiIndia Department of Chemical Engineering Indian Institute of Technology(BHU)VaranasiIndia

Porcelain fused to metal(PFM)has received great attention over the last few years due to its importance in the ***(K_(2)O·Al_(2)O_(3)·SiO_(2))is a high thermal expansion porcelain,suitable for bonding to ***,kalsilite is a metastable phase which gets converted into crystalline leucite upon *** the current work feasibility of developing stable kalsilite phase,dispersion of MgF2 in it as an additive and using mechanochemical synthesis are *** fine dental material has been formulated by mixing prepared kalsilite with low temperature frit(LTF)in different *** crystalline phases evolved in fired powders are characterized by powder X-ray diffraction(XRD)*** with different ratio of LTF has been cold pressed and heat treated to examine its coefficient of thermal expansion(CTE),flexural strength,apparent porosity(AP),bulk density(BD)and *** indicate that MgF_(2) addition and high milling duration help in kalsilite *** also plays an important role in this stabilization,and at 1100℃single phase kalsilite formation is *** outcomes demonstrate that it is easily possible to synthesize a stable single phase kalsilite with desirable properties.

关键词： kalsilite porcelain fused to metal(PFM) dental ceramic mechanochemical synthesis thermal expansion X-ray diffraction(XRD)

A Holistic,Proactive and Novel Approach for Pre,During and Post Migration Validation from Subversion to Git

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2021年第3期66卷 2359-2371页

作者： vinay singh Mohammed Alshehri Alok Aggarwal Osama Alfarraj Purushottam Sharma K.R.Pardasani School of Computer Science University of Petroleum&Energy StudiesDehradunIndia Department of Information Technology College of Computer and Information SciencesMajmaah UniversityMajmaah11952Saudi Arabia Computer Science Department Community CollegeKing Saud UniversityRiyadhSaudi Arabia Amity School of Engineering&Technology Amity UniversityUttar PradeshNoidaIndia Department of Mathematics Bioinformatics&Computer ApplicationsMaulana Azad National Institute of TechnologyBhopal462003India

Software development is getting a transition from centralized version control systems(CVCSs)like Subversion to decentralized version control systems(DVCDs)like Git due to lesser efficiency of former in terms of branching,fusion,time,space,merging,offline commits&builds and repository,*** is having a share of 77%of total VCS,followed by Subversion with a share of 13.5%.The majority of software industries are getting a migration from Subversion to *** a few migration tools are available in the software ***,these too lack in many features like lack of identifying the empty directories as premigration check,failover capabilities during migration due to network failure or disk space issue,and detailed report generation as post-migration *** this work,a holistic,proactive and novel approach has been presented for pre/during/post-migration validation from Subversion to *** scripts have been developed and executed run-time over various projects for overcoming the limitations of existing migration software tools for a Subversion to Git *** premigration,none of the available migration tools has the capability to fetch empty directories of Subversion,which results in an incomplete migration from Subversion to *** Scripts have been developed and executed for pre-migration validation and migration preparation,which overcomes the problem of incomplete *** was conducted in SRLC Software Research Lab,Chicago,*** the migration process,in case of loss of network connection or due to any other reason,if migration stops or breaks,available migration tools do not have capabilities to start over from the same point where it *** Scripts have been developed and executed to keep the migration revision history in the cache(elastic cache)to start from the same point where it was left due to connection *** post-migration,none of the available version control migration tools generate a detailed repo

关键词： Databases and information systems subversion Git version control system trunk tag translational settings author mapping

Dual Source Double-low Dose CTA with Iso-osmolar Contrast Material for Craniocervical Arteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Dual Source Double-low Dose CTA with Iso-osmolar Contrast Ma...

作者： vinay PRATAP singh 江苏大学

学位级别：硕士

Objective: To evaluate the image quality and radiation dose of head and neck CT angiography（CTA）using low tube voltage and low volume of isotonic contrast ***: A total of eighty patients who underwent head and neck CTA were randomly assigned into 2 groups: group A（double low-dose group,40 cases）with 80/Sn140 k Vp,sinogram-affirmed iterative reconstruction（SAFIRE）and 32 ml of 270 mg I/ml contrast material,and group B（conventional group,40 cases）with 100/Sn140 k Vp,filtered back-projection reconstruction（FBP）and 40 ml of 370 mg I/ml contrast *** values were measured from the center of specific arterial segments using regions of *** CT attenuation,effective dose（ED）,image noise,signal-to-noise ratio（SNR）and contrast-to-noise ratio（CNR）of each arterial segment were compared between the two protocols using the Student t *** between both protocols was ***: Both groups of CTA achieved comparable CT attenuation,image noise,SNR and CNR in each arterial segments（P ＞0.05）,except for the image noise of ascending aorta（P＜ 0.01）.Using the double low-dose mode,the ED was reduced by about 23.8 %（t=-8.295,P（27）0.001）,and iodine intake of patients in group A was reduced by 41.6%（8.6g versus 14.8g）.There was no significant difference in image quality between the two groups（t=-0.777,P＞0.05）.The consistency between the two observers was good（kappa value = 0.626,P（27）0.001）.Conclusion: In head and neck 3dual-source CTA,using low tube voltage and low volume of isotonic contrast material not only provided images of diagnostic quality but also reduced both radiation dose and iodine intake during ***: To compare the image quality,radiation dose and iodine load of cervico-cerebral CTA in the same group of *** and Method: A retrospective study was performed in 18 patients of head and neck CTA using different protocols in interval of *** patients first underwent conventional cervico-cer

关键词： CTA iso-osmolar contrast materia craniocervical arteries

Enzyme inhibition by molluscicidal agents of Bauhinia variegata and Mimusops elengi in the nervous tissue of Lymnaea acuminata

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Journal of Coastal Life Medicine 2015年第10期 805-808页

作者： Kanchan Lata singh D.K.singh vinay Kumar singh Malacology Laboratory Department of ZoologyDeen Dayal Upadhyay Gorakhpur UniversityGorakhpur 273009U.P.India

Objective:To evaluate the effect of enzymatic activity in the nervous tissue of snail Lymnaea acuminata(***)by Bauhinia variegata(***)and Mimusops elengi(***)and their active molluscicidal components quercetin and ***:Treatment of sublethal concentration(40%and 80%of 96-h LC_(50))in vivo of column-purified fraction of *** leaf and *** bark and their molluscicidal agents quercetin and saponin inhibit the acetylcholinesterase(AChE),acid and alkaline phosphatase(ACP and ALP)activities in the nervous tissue of ***:AChE activity was more inhibited than ACP and ALP in snail exposed to column-purified fraction of *** bark and *** all the treatments the highest inhibition in AChE activity(27.77%)was noted in snail *** exposed to 80%of 96-h LC_(50)of saponin at 96-h exposure ***:It can be concluded from the present study that inhibition of AChE,ACP and ALP by *** leaf(quercetin)and *** bark(saponin)in snail *** could be the cause of snail mortality.

关键词： Fasciolosis Quercetin Saponin Enzyme Fresh water snail

Application of Modified Benders Decomposition to Single-Stage Multi-Commodity Multi-Period Warehouse Location Problem: An Empirical Investigation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

American Journal of Operations Research 2016年第3期6卷 245-259页

作者： Renduchintala Raghavendra Kumar Sharma Ankita Malviya Vimal Kumar vinay singh Pritee Agarwal Department of Industrial & Management Engineering Indian Institute of Technology Kanpur India ABV Indian Institute of Information Technology & Management Gwalior India Department of Mathematics & Statistics Indian Institute of Technology Kanpur India

In the past, researchers have applied Bender’s decomposition to distribution problem and used feasibility constraint to speed up the performance of Bender’s decomposition. Further, the application of Branch and Bound to single-stage multi-commodity single-period warehouse location problem (SSMCSPWLP) with strong constraints has shown that they are more effective. It was also shown in the previous research (in the context of Branch and Bound Methodology) that hybrid formulation for the single-stage single-period multi-commodity warehouse location problem yielded superior results. In this paper we apply Benders’ decomposition to strong and weak formulations of single-stage multi-commodity multi-period warehouse location problem (SSMCMPWLP). As suggested in the previous literature we put feasibility constraints in the pure integer sub- problem to speed up the performance of Benders’ decomposition. We also develop an additional cut (constraint that is again added to pure integer sub-problem) and show that it further speeded up Benders’ Decomposition. This research led to the possibility of applying Benders’ Decomposition to the hybrid formulation of SSMCMPWLP in future.

关键词： Benders Decomposition SSMCMPWLP Strong and Weak Formulation Warehouse Location Distribution

Removal of Malathion from Aqueous Solutions and Waste Water Using Fly Ash

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Water Resource and Protection 2010年第4期2卷 322-330页

作者： vinay K. singh Ravi S. singh Prem N. Tiwari Jai K. singh Fethiye Gode Yogesh C. Sharma 不详

Fly ash, obtained from a thermal power plant, Anpara, Sonebhadra, India has been used as an effective ad-sorbent for the removal of malathion from aqueous solutions. The time required to attain equilibrium was found to increase from 40 to 60 minutes as the initial malathion concentration increases from 1 to 10 mg/L. The optimum pH value for adsorption was 4.50. The removal of malathion increased by increasing the tem-perature indicating endothermic nature of removal process. The fly ash exhibited first order rate kinetics and followed both Langmuir and Freundlich isotherm models. Endothermic nature of adsorption process was further supported from increasing values of Langmuir and Freundlich constants with increase in temperature. The adsorbent can be used as an economical product for the removal of malathion from wastewater also. A comparison of the adsorption capacity of fly ash with other adsorbents shows that fly ash can be used for the removal of malathion from aqueous solutions.

关键词： Adsorption Wastewater Removal Fly Ash Malathion

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

印度

科学观察 2010年第3期 6-9页

作者： Jonathan Adams Christopher King vinay singh Director Research EvaluationHealthcare&Science Business of Thomson Reuters India office Healthcare&Science business of Thomson Reuters Managing Editor Science WatchHealthcare&Science Business of Thomson Reuters

与其他自2000年以来科研发展几乎停滞不前的国家相比,印度近年的科研水平可以说是突飞猛进。然而,众多的观察家注意到印度的发展轨迹是一条上升的弹道曲线。数据分析表明,印度在科研发展初始阶段的低谷仅仅是蛰伏,随后的快速发展展露出... 详细信息

与其他自2000年以来科研发展几乎停滞不前的国家相比,印度近年的科研水平可以说是突飞猛进。然而,众多的观察家注意到印度的发展轨迹是一条上升的弹道曲线。数据分析表明,印度在科研发展初始阶段的低谷仅仅是蛰伏,随后的快速发展展露出印度"沉睡巨人"的本质。

关键词：印度人亚洲新兴论文数量

Exploring the role of N-acetyltransferases in diseases:a focus on N-acetyltransferase 9 in neurodegeneration

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第10期20卷 2862-2871页

作者： Prajakta Deshpande Anuradha Venkatakrishnan Chimata Amit singh Department of Biology University of DaytonDaytonOHUSA Premedical Program University of DaytonDaytonOHUSA Center for Tissue Regeneration and Engineering at Dayton(TREND) University of DaytonDaytonOHUSA Integrative Science and Engineering Center University of DaytonDaytonOHUSA Center for Genomic Advocacy(TCGA) Indiana State UniversityTerre HauteINUSA

Acetyltransferases,required to transfer an acetyl group on protein are highly conserved proteins that play a crucial role in development and *** acetylation is a common post-translational modification pivotal to basic cellular *** to 80%-90%of proteins are acetylated during translation,which is an irreversible process that affects protein structure,function,life,and *** this review,we have discussed the various N-acetyltransferases present in humans,their function,and how they might play a role in ***,we have focused on N-acetyltransferase 9 and its role in microtubule *** have shed light on how N-acetyltransferase 9 and acetylation of proteins can potentially play a role in neurodegenerative *** have specifically discussed the N-acetyltransferase 9-acetylation independent function and regulation of c-Jun N-terminal kinase signaling and microtubule stability during development and neurodegeneration.

关键词： acetyl-coenzyme A Alzheimer’s disease animal models cell death drosophila eye human disease c-Jun N-terminal kinase signaling N-Acetyltransferases N-acetyltransferase 9 neurodegeneration

维普期刊数据库

Fibrinogen’s potential role in connecting cerebrovascular abnormalities with glymphatic dysfunction in Alzheimer’s disease

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第1期20卷 203-204页

作者： Vishal singh Arnab Choudhury Hyung Jin Ahn Department of Pharmacology Physiology and NeurosciencesRutgers-New Jersey Medical SchoolNewarkNJUSA Brain Health Institute Rutgers UniversityPiscatawayNJUSA

Alzheimer’s disease(AD)stands out as the primary manifestation of age-related dementia,portraying a chronic neurodegenerative disorder distinguished by the accumulation of fibrillar amyloid-β(Aβ)plaques and neurofibrillary tangles of hyperphosphorylated ***,from a clinical standpoint,AD presents itself as a complex condition with a spectrum of dysfunctions rather than a singular pathological *** often-overlooked aspect of the disease is the presence of extensive cerebrovascular abnormalities,given that the majority of AD patients experience altered cerebral blood flow,damaged vasculature,increased microinfarcts and *** models of AD further support this observation,showing cerebrovascular dysfunction such as impaired cerebral blood flow and altered cerebrovascular reactivity(Tataryn et al.,2021;Gareau et al.,2023).

关键词： cerebrovascular dysfunction Alzheimer

维普期刊数据库