检索结果-南通市图书馆

Advancement in biogas production from the solid waste by optimizing the anaerobic digestion

Waste Disposal and Sustainable Energy 2020年第2期2卷 85-103页

作者： Sunil Kumar srivastava Department of Environmental Science/Chemistry Jaypee University of Engineering and TechnologyRaghogarhGunaMP 473226India

The crisis of fossil fuel and their negative impact on the environment has caused concern among the scientific communities leading them to look around for renewable sources of *** review has emphasized the efficient utilization of organic municipal solid waste as well as agriculture waste in an anaerobic digester for the production of biogas as a sustainable renewable *** advances in biogas production along with previous research work have been discussed to offer a comprehensive synopsis of the accumulated *** review also elucidates about the design of an anaerobic digester,the prospect of anaerobic digestion and opportunity in new advances in *** is one of the most accepted sustainable renewable *** characterization,elimination of contaminants,pretreatment,anaerobic diges-tion in optimum condition and utilization of energy crops enhanced the efficiency of an anaerobic *** of segregated organic solid waste increased its putrescibility and further biogas *** optimized parameters in this review were pH,temperature,loading rate,C/N ratio and solid/liquid ratio of the *** flow rate of the feedstock was optimized according to the available volume of the digester,residence time and the characteristics of the *** design of an anaerobic digester should be preferably cylindrical in shape,with a diameter ranging from 6 to 40 m,the depth ranging from 7.5 to 15 m and the conical floor having a slope around 15%.A comprehensive reform in technical,economic,and social policies is essential to accomplish a sustainable energy system considering biogas as a future renewable *** flowsheet of the biogas and methanol production has been given in Fig.1.

关键词： Renewable energy Anaerobic digestion Biomass Biogas Energy crops Solid waste

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Varna-based optimization:a novel method for capacitated controller placement problem in SDN

引用

Frontiers of Computer Science 2020年第3期14卷 87-111页

作者： Ashutosh Kumar SINGH Saurabh MAURYA Shashank srivastava Department of Computer Science&Engineering Motilal Nehru National Institute of Technology AllahabadAllahabad 211004U.P.India

Recently,software defined networking(SDN)is a promising paradigm shift that decouples the control plane from the data *** can centrally monitor and control the network through softwarization,i.e.,*** controllers are a necessity of current SDN based *** multiple controllers in an optimum way is known as controller placement problem(CPP).Earlier,solutions of CPP only concentrated on propagation latency but overlooked the capacity of controllers and the dynamic load on switches,which is a significant factor in real *** this paper,we develop a novel optimization algorithm named varna-based optimization(VBO)and use it to solve *** the best of our knowledge,this is the first attempt to minimize the total average latency of SDN along with the implementation of TLBO and Jaya algorithms to solve CPP for all twelve possible *** experimental results show that TLBO outperforms PSO,and VBO outperforms TLBO and Jaya algorithms in all scenarios for all topologies.

关键词： SDN controller placement CPP latency VBO

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Synthesis and Biological Study of Some 4-oxo-Thiazolidine Derivatives of 2-Aminothiazole

引用

Chinese Journal of Chemistry 2011年第5期29卷 1001-1010页

作者： Samadhiya Pushkal Sharma Ritu srivastava Santosh K. srivastava Savitri D. Synthetic Organic Chemistry Laboratory Department of Chemistry Dr. H.S. Gour University (A Central University) Sagar M.P. 470003 India

Conventional and microwave assisted synthesis of new series of N-[2-{2-（substituted phenyl）-4-oxo- 5-（substituted benzylidene）-1,3-thiazolidine}-iminoethyl]-2-aminothiazole 5a-Sin have been developed. The cycloaddition reaction of thioglycolic acid with N-{2-（substituted benzylidenehydrazino）-ethyl}-2-aminothiazole 3a--3m in the presence of anhydrous ZnC12 afforded new heterocyclic compounds N-[2-{2-（substituted phenyl）- 4-oxo-l,3-thiazolidine}-iminoethyl]-2-aminothiazole 4a---4m. The later product on treatment with several selected substituted aromatic aldehydes in the presence of C2HsONa undergoes Knoevenagel reaction to yield 5a--Sin. The structures of compounds 1, 2, 3a--3m, 4a---4m and 5a--Sm were confirmed by IR, IH NMR, 13C NMR, FAB-Mass and chemical analysis. All above compounds were screened for their antimicrobial activities against some selected bacteria and fungi and antituberculosis study against M. tuberculosis.

关键词： conventional microwave synthesis 2-aminothiazole 4-oxo-thiazolidine antimicrobial antitubercular

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Synthesis of N1-3-{（4-Substituted aryl-3-chloro-2-oxo- azetidine）-iminocarbamyl}-propyl-6-nitroindazole Derivatives and Their Biological Significance

引用

Chinese Journal of Chemistry 2011年第8期29卷 1745-1752页

作者： Samadhiya, Pushkal Sharma, Ritu srivastava, Santosh K. srivastava, Savitri D. Synthetic Organic Chemistry Laboratory Department of Chemistry Dr. H. S. Gour University (A Central Univer- sity) Sagar M.P. 470003 India

Synthesis of N1-3-{（4-substitute daryl-3-chloro-2-oxo-azetidine）-iminocarbamyl}-propyl-6-nitroindazole 4a-- 4s was conducted by a conventional method. All the compounds were synthesized and characterized by IR, 1H NMR, 13C NMR, FAB-Mass techniques and chemical methods. All the final synthesized compounds were evaluated for their antimicrobial activity and antitubercular activity with MIC values against some selected microorganisms.

关键词： synthesis 6-nitroindazole 2-azetidinone biological activity

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Long noncoding RNA-mediated activation of androgen receptor in prostate cancer

引用

Asian Journal of Andrology 2014年第3期16卷 418-419页

作者： Gyorgy Petrovics Shiv srivastava Center for Prostate Disease Research Department ofSurgery Uniformed Services University of the HealthSciences Maryland USA.

Remarkable progress has been made in molecular characterization of prostate cancer （PCa） with continued innovations in high throughput technologies evaluating human cancer？-3 Since the completion of the Human Genome Project it has been estimated that only about 1.5%-2% of our genome codes for proteins. Various genome-wide approaches, e.g. the ENCODE project, revealed that a much larger percent of the genome is transcribed as non-protein coding （nc） RNA, including long noncoding （lnc） RNA （over 200bps long）. Although the biological roles of IncRNA （the ＇dark matter of the genome＇） are not nearly as well-understood as the protein coding mRNAs, it is increasingly clear that they play important roles in almost every aspects of biology, including cancer biology.4＇5 This is exemplified by recent genome-wide association studies revealing that over 80% of cancer-associated single nucleotide polymorphisms （SNPs） are in noncoding regions of the genome.

关键词： Remarkable progress androgen receptor characterization

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Development of STEP AP224 Extractor for Interfacing Feature Based CAPP to STEP-NC(AP238)

引用

International Journal of Automation and computing 2019年第5期16卷 655-670页

作者： Deepanshu srivastava Venkateswara Rao Komma Department of Mechanical Engineering Motilal Nehru National Institute of Technology

Manufacturing features represent area of interest on the machinable surface of a part, which can provide a unique set of removable volumes from part. Feature description in standard for exchange of product(STEP) AP224 is an efficient neutral format for the development of feature based process planning. Process planning information of features can be converted to numerical control(NC)code to have complete manufacturing information of part. STEP-NC code provides an efficient manufacturing information model compared to G-M codes. In this work, an interface is developed for extraction of feature information available in AP224(AIM) format and the ruled-based approach is used to select different process planning parameters. A graphical user interface(GUI) is developed for the interface for displaying features information as represented in AP224 file. Furthermore, the interface generates STEP-NC code in AP238 format. The developed interface has three modules. 1) Module I: Reading interface for STEP AP224 file and development of GUI. 2)Module II: Selection of feature based process planning parameters. 3) Module III: Writing interface for STEP-NC(AP238). The developed interface has been implemented in Java through Java standard data access interface(JSDAITM). The generated STEP-NC AP238 code for the test part has been successfully simulated on STEP-NC Machine TM, an AP238 simulator. This article also provides an in-depth view of application interpreted model(AIM) representation format of STEP for AP224 and AP238.

关键词： Standard for exchange of product (STEP) AP224 AP238 Java standard data access interface (JSDAITM) computer aided design(CAD)/computer aided process planning(CAPP)/computer aided manufacturing(CAM)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Evaluation of Inhibitory Effect of the Plant Phyllanthus amarus Against Dermatophytic Fungi Microsporum gypseum

引用

Biomedical and Environmental Sciences 2004年第3期17卷 359-365页

作者： ANURAG AGRAWAL SHALINI srivastava J.N.srivastava M.M.SRIVASAVA Department of Chemistry Faculty of Science Dayalbagh Educational Institute Deemed University Agra-282 005 IndiaDepartment of Chemistry Faculty of Science Dayalbagh Educational Institute Deemed University Agra-282 005 IndiaDepartment of Botany Faculty of Science Dayalbagh Educational Institute Deemed University Agra-282 005 IndiaDepartment of Chemistry Faculty of Science Dayalbagh Educational Institute Deemed University Agra-282 005 India

Objective The antifungal activity of various solvent extracts (such as ether, chloroform, ethyl acetate and ethyl alcohol) of the plant Phyllanthus amarus against dermatophytic fungi Microsporum gypseum was observed. Method Antifungal bioassay in terms of reduction in weight, colony diameter and sporulation of the target fungal colony was carried out using Broth Dilution method. Results Root part of the plant, extracted in various organic solvents did not show any noticeable antifungal activity. The percentage inhibition observed in different solvent extracts of aerial part was found as reduction in weight: chloroform [50.3%], ethyl acetate [27.7%] and ethyl alcohol [12.1%], reduction in colony diameter: chloroform [53.4%], ethyl acetate [31.4%] and ethyl alcohol [15.0%] and reduction in sporulation: maximum inhibition in chloroform extract, at test concentration of 4000 ppm at incubation period of 8 days. Conclusion Chloroform fraction of the aerial part of the plant P. amarus shows significant inhibitory effect against dermatophytic fungi M. gypseum and requires chemical characterization for its bioactive principle.

关键词： Phyllanthus amarus Antifungal activity Microsporum gypseum Skin infections

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Spaces of vector-valued Dirichlet series in a half plane

引用

Frontiers of Mathematics in China 2014年第6期9卷 1239-1252页

作者： Akanksha G.S. srivastava Department of Mathematics Jaypee Institute of Information TecnologyNOIDA-201307 Uttar Pradesh India

Dirichlet series with real frequencies which represent entire functions on the complex plane C have been investigated by many authors. Several properties such as topological structures, linear continuous functionals, and bases have been considered. Le Hai Khoi derived some results with Dirichlet series having negative real frequencies which represent holomorphic functions in a half plane. In the present paper, we have obtained some properties of holomorphic Dirichlet series having positive exponents, whose coefficients belong to a Banach algebra.

关键词： Vector-valued Dirichlet series abscissa of convergence norm,topology

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Performance Analysis of Silicon and Blue Phosphorene/MoS2 Hetero-Structure Based SPR Sensor

引用

Photonic Sensors 2019年第3期9卷 284-292页

作者： Akash srivastava Y. K. PRAJAPATI Department of Electronics and Communication Engineering Motilal Nehru National Institute of Technology Allahabad Allahabad 211004 Uttar Pradesh India

Surface plasmon resonance (SPR) sensor based on the blue phosphorene/MoS2 hetero-structure is presented to enhance the performance parameters, i.e., sensitivity, detection accuracy, and quality *** blue phosphorene/MoS2 hetero-structure works as an interacting layer with the analyte for the enhancement of the sensitivity of the sensor. It is observed that the sensitivity of blue phosphorene/MoS2 based sensor (i.e., structure-Ⅱ) is improved by 5.75%, from the conventional sensor (i.e., structure-Ⅲ). Further, an additional silicon nanolayer is introduced between the metal layer and blue phosphorene/MoS2 hetero-structure. The sensitivity of the proposed blue phosphorene/MoS2 hetero-structure with a silicon layer SPR sensor, i.e., structure-Ⅰ, is enhanced by 44.76% from structure-Ⅱ and 55.75% from structure-Ⅲ due to an enhancement in the evanescent field near the metal-analyte interface. Finally, it is observed that at the optimum thickness of silicon between the gold layer and blue phosphorene/MoS2, performance parameters of the sensor are enhanced.

关键词： Surface plasmon blue phosphorene M0S2 sensitivity

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A Thorough Investigation on Image Forgery Detection

引用

Computer Modeling in Engineering & Sciences 2023年第3期134卷 1489-1528页

作者： Anjani Kumar Rai Subodh srivastava Department of Electronics&Communication Engineering NITPatnaIndia

Image forging is the alteration of a digital image to conceal some of the necessary or helpful *** cannot be easy to distinguish themodified region fromthe original image in *** demand for authenticity and the integrity of the image drive the detection of a fabricated *** have been cases of ownership infringements or fraudulent actions by counterfeiting multimedia files,including re-sampling or *** work presents a high-level view of the forensics of digital images and their possible detection *** work presents a thorough analysis of digital image forgery detection techniques with their steps and *** methods have identified forgery and its type and compared it with state of the *** work will help us to find the best forgery detection technique based on the different *** also shows the current issues in other methods,which can help researchers find future scope for further research in this field.

关键词： Forgery detection digital forgery image forgery localization image segmentation image forensics multimedia security

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：