检索结果-南通市图书馆

Composition, structure and diversity characterization of dry tropical forest of Chhattisgarh using satellite data

Journal of Forestry Research 2014年第4期25卷 819-825页

作者： Tarun Thakur S.L. Swamy ajit singh nain Department of Forestry Indira Gandhi Agricultural University (IGAU) Raipur Chhattisgarh India

The purpose of this study was to characterize the land use, vegetation structure, and diversity in the Barnowpara Sanctuary, Raipur district, Chhattisgarh, India through the use of satellite remote sensing and GIS. Land cover and vegetation were spatially analyzed by digitally classifying IRS 1D LISS III satellite data using a maximum likelihood algorithm. Later, the variations in structure and diversity in different forest types and classes were quantified by adopting quadratic sampling proce- dures. Nine land-cover types were delineated： teak forest, dense mixed forest, degraded mixed forest, Sal mixed forest, open mixed forest, young teak plantation, grasslands, agriculture, habitation, and water bodies. The classification accuracy for different land-use classes ranged from 71.23% to 100%. The highest accuracy was observed in water bodies and grass- land, followed by habitation and agriculture, teak forest, degraded mixed forest, and dense mixed forest. The accuracy was lower in open mixed forest, and sal mixed forest. Results revealed that density of different forest types varied from 324 to 733 trees ha-l, basal area from 8.13 to 28.87 ***-1 and number of species from 20 to 40. Similarly, the diversity ranged from 1.36 to 2.98, concentration of dominance from 0.06 to 0.49, species richness from 3.88 to 6.86, and beta diversity from 1.29 to 2.21. The sal mixed forest type recorded the highest basal area, diversity was highest in the dense mixed forest, and the teak forest recorded maximum density, which was poor in degraded mixed forests. The study also showed that Normalized Difference Vegetation Index （NDVI） was strongly cor- related to with the Shannon Index and species richness.

关键词： forest Shannon Index species richness RS and GIS landuse NDVI

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 and analysis of cutting speed, wire wear ratio, and dimensional deviation of wire electric discharge machining of super alloy Udimet-L605 using support vector machine and grey relational analysis

引用

Advances in Manufacturing 2018年第2期6卷 225-246页

作者： Somvir singh nain Dixit Garg Sanjeev Kumar Department of Mechanical Engineering National Institute of Technology Kurukshetra 136119 India Department of Mechanical Engineering PEC University of Technology Chandigarh 160012 India

The current study investigates the behavior of wire electric discharge machining （WEDM） of the super alloy Udimet-L605 by employing sophisticated machine learning approaches. The experimental work was designed on the basis of the Taguchi orthogonal L27 array, consid- ering six explanatory variables and evaluating their influ- ences on the cutting speed, wire wear ratio （WWR）, and dimensional deviation （DD）. A support vector machine （SVM） algorithm using a normalized poly-kernel and a radial-basis flow kernel is recommended for modeling the wire electric discharge machining process. The grey rela- tional analysis （GRA） approach was utilized to obtain the optimal combination of process variables simultaneously, providing the desirable outcome for the cutting speed, WWR, and DD. Scanning electron microscope and energy dispersive X-ray analyses of the samples were performed for the confirmation of the results. An SVM based on the radial-basis kernel model dominated the normalized poly- kernel model. The optimal combination of process vari- ables for a mutually desirable outcome for the cutting speed, WWR, and DD was determined as Ton1, Toffa, Ip1, WT3, SV1, and WF3. The pulse-on time is the significant variable influencing the cutting speed, WWR, and DD. The largest percentage of copper （8.66%） was observed at the highest cutting speed setting 7.05% of copper at the low of the machine compared to cutting speed setting of the machine.

关键词： Support vector machine (SVM) Greyrelational analysis (GRA) Wire electric dischargemachining (WEDM) Udimet-L605 Scanning electronmicroscope (SEM) Wire wear ratio (WWR)

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

Staphylococcus aureusβ-hemolysin-neutralizing single-domain antibody isolated from phage display library of Indian desert camel

引用

Asian Pacific Journal of Tropical Medicine 2010年第1期3卷 1-7页

作者： Jangra Pooja singh ajit Immunology Section Department of Veterinary MicrobiologyCh.Charan Singh Haryana Agricultural University

Objective:To isolate and characterize Staphylococcus aureus(***)β-hemolysinneutralizing dAbs from phage display library of Indian desert ***:Phage display library of 5×10 dAb clones of LPS-immunized Indian desert camel constructed in our laboratory was used for selection of *** exotoxin-specific clones by panning *** of Ag-specific clones in successive rounds of panning was assessed by phage-ELISA and phage *** dAb clones binding to *** exotoxin Ags were expressed with C-terminal 6×His tag in *** and purified by Ni-chelate *** expression was verified by SDS-PAGE and western *** purified clones were tested for inhibition of ’hot-cold’ hemolytic activity in *** to thermal inactivation of the dAb clones was studied by observing the effect of heat treatment from 50℃to 99℃for 30 min on the ’hot-cold’ hemolytic activity in ***:Several dAb clones binding to *** exotoxins were isolated and enriched by three rounds of *** soluble dAb clones were approximately～16 kDa in size and reacted with 6×His tag specific murine monoclonal antibody in western *** of the Ni-chelate affinity purified dAb.6×His clones,inhibited ***β-hemolysin activity in vitro and resisted thermal inactivation upto ***:An ***β-hemolysinneutralizing dAb clone of possible therapeutic potential has been isolated.

关键词： Staphylococcus aureus β-hemolysin neutralization Single domain antibodies Phage display library Indian desert camel

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

Effect of climate change on seasonal monsoon in Asia and its impact on the variability of monsoon rainfall in Southeast Asia

引用

Geoscience Frontiers 2015年第6期6卷 817-823页

作者： Yen Yi Loo Lawal Billa ajit singh School of Bioscience University of Nottingham Malaysia Campus School of Geography University of Nottingham Malaysia Campus

Global warming and climate change is one of the most extensively researched and discussed topical issues affecting the *** there are enough historical evidence to support the theory that climate change is a natural phenomenon,many research scientists are widely in agreement that the increase in temperature in the 20 th century is anthropologically *** associated effects are the variability of rainfall and cyclonic patterns that are being observed *** Southeast Asia the link between global warming and the seasonal atmospheric flow during the monsoon seasons shows varying degree of *** study investigates the impact of climate change on the seasonality of monsoon Asia and its effect on the variability of monsoon rainfall in Southeast *** comparison of decadal variation of precipitation and temperature anomalies before the 1970 s found general increases which were mostly *** beyond the 1970 s,global precipitation anomalous showed increases that almost corresponded with increases in global temperature anomalies for the same *** are frequent changes and a shift westward of the Indian summer *** precipitation is observed to be 70%below normal levels,in some areas the topography affects the intensity of *** shifting phenomenon of other monsoon season in the region are impacting on the variability of rainfall and the onset of monsoons in Southeast Asia and is predicted to delay for 15 days the onset of the monsoon in the *** variability of monsoon rainfall in the SEA region is observed to be decadal and the frequency and intensity of intermittent flooding of some areas during the monsoon season have serious consequences on the human,financial,infrastructure and food security of the region.

关键词： Climate change Temperature anomalies Precipitation anomalies Seasonal monsoons Rainfall variability Southeast Asia

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

Study of intermolecular interactions in binary mixtures of methyl acrylate with benzene and methyl substituted benzenes at different temperatures:An experimental and theoretical approach

引用

Chinese Journal of Chemical Engineering 2022年第4期35卷 212-238页

作者： Anil Kumar nain Department of Chemistry Dyal Singh College(University of Delhi)New Delhi 110003India

The ultrasonic speeds,u and viscosities,ηof the binary mixtures of methyl acrylate with benzene,toluene,o-xylene,m-xylene,p-xylene,and mesitylene over the whole mole fraction range were measured at six different temperatures and at atmospheric *** the experimental data,the excess isentropic compressibility,κ_(s)^(E),excess ultrasonic speed,u^(E),excess molar isentropic compressibility,K_(s,m)^(E),excess specific impedance,Z^(E)and deviations in viscosity,Δηhave been *** partial molar isentropic compressions,K_(s,m,1) and K_(s,m,2),and excess partial molar isentropic compressions,K_(s,m,1)^(-E) and K_(s,m,2)^(-E) over the whole composition range,partial molar isentropic compressions,K_(s,m,1)^(-)and K_(s,m,2)^(-),and excesspartial molar isentropic compressions,K_(s,m,1)^(-E) and K_(s,m,2)^(-E)of the components at infinite dilution have also been *** results specified the existence of weak interactions between unlike molecules,and these interactions follow the order:benzene>toluene>p-xylene>m-xylene>o-xylene>mesityle *** magnitude of interactions was found to be dependent on the number and position of the methyl groups in these aromatic hydrocarbons.

关键词： Ultrasonic speed Viscosity Methyl acrylate Aromatic hydrocarbon Excess properties Intermolecular interactions

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

Ethnobotanical survey of medicinal plants used in the management of cancer and diabetes

引用

Journal of Traditional Chinese Medicine 2020年第6期40卷 1007-1017页

作者： Garima singh ajit Kumar Passari Marcy D Momin Sakthivel Ravi Bhim Pratap singh Nachimuthu Senthil Kumar Department of Biotechnology Mizoram UniversityAizawl 796004India Department of Botany Pachhunga University CollegeAizawl 796001India Departamento de Biologia Molecular y Biotecnologia Instituto de Investigaciones BiomedicasUniversidad Nacional Autonoma de Mexico(UNAM)Ciudad de Mexico-04510Mexico Department of Agriculture&Environmental Sciences(AES) National Institute of Food Technology Entrepreneurship&Management(NIFTEM)SonepatHaryanaIndia

OBJECTIVE:To conduct an ethnobotanical survey and document the traditional anticancer and antidiabetic plants used by the local tribes of Mizoram,Northeast ***:A systematic survey was conducted in rural and urban areas of Mizoram by interviewing traditional practitioners,and cancer and diabetes patients.A detailed literature search was carried out using MEDLINE and SCOPUS and available literatures were selected and included in the *** use value(UV)of the selected plants was calculated based on the number of citations per species given by ***:Data was obtained for 201 traditional medicinal plants from Mizoram,Northeast *** plants were from 72 different families and belonged to 140 *** these,103 plants were reported for the first time as possessing either anticancer or antidiabetic potential,and 105 plants were identified that were used for the treatment of both *** plants(Phlogacanthus thysiformis,Solanum gilo and Lobelia angulata)with antidiabetic potential,and six plants(Dillenia scabrella,Circium sinesis,Eupatorium nodiflorum,Pratia begonifolia,Vernonia teres and Plantago erosa)with both as anticancer and antidiabetic potential were documented for the first ***:In this study,we documented several explored and unexplored medicinal plants that may be useful for the management of cancer and *** study suggests that there is a broad scope fordeveloping potent anticancer and antidiabetic agent from the flora of Mizoram,Northeast India.

关键词： Plants medicinal Antineoplastic agents Hypoglycemic agents Ethanobotanical survey Traditional knowledge

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

Insight into solute-solute and solute-solvent interactions of semicarbazide hydrochloride in water and D-glucose/D-sucrose+water solutions at temperatures(293.15 to 318.15)K

引用

Chinese Journal of Chemical Engineering 2020年第12期28卷 3086-3095页

作者： Ankita Dinesh Chand Anil Kumar nain Department of Chemistry Dyal Singh CollegeUniversity of DelhiNew Delhi 110003India Department of Chemistry University of DelhiDelhi 110007India Department of Chemistry Amity University Dubai CampusDubai International Academic CityDubaiUAE

The solute-solute and solute-solvent interactions of drug semicarbazide hydrochloride with carbohydrates(Dglucose/D-sucrose)are investigated by using volumetric,viscometric and acoustic *** measurements of the densitiesρ,ultrasonic speeds u,and viscositiesη.of semicarbazide hydrochloride in 5% and 10%D-glucose/D-sucrose+water(w/w)solutions were carried out at temperatures(293.15-318.15)K and at pressure,p=101 *** apparent molar volumes,Vϕ,limiting apparent molar volumes,V°ϕ,apparent molar compressibilities,Ks,ϕ,limiting apparent molar compressibilities,K°s;ϕ,partial molar expansibilities,E°ϕ,transfer volumes,V°ϕ;tr and transfer compressibilities,K°s;ϕ;tr have been calculated from the experimental *** viscosity data were examined by using the Jones-Dole equation and the viscosity A and B coefficients were *** results are discussed in terms of solute-solute and solute-solvent interactions in these *** structure making/breaking ability of semicarbazide hydrochloride is examined using the sign of temperature derivative of Bcoefficient,dB/dT.

关键词： Density Ultrasonic speed Viscosity Semicarbazide hydrochloride Carbohydrates Solute-solvent interactions

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

Education System & Emerging Technologies

引用

Psychology Research 2019年第12期9卷 497-503页

作者： ajit singh Patna Women’s College BiharIndia

The Internet has evolved from connecting people and later videos,photos,and text to more recently physical *** sensors,physical objects can“talk”(transmit data)to each other and even command each other to perform a physical *** things and people become more connected,such objects will also become part of social networks,much in the same way that people tag photos on *** this way,the value of such objects will increase for both research and *** IOT and Cloud computing technologies can provide solutions for the above mentioned problems in education *** computing enables users to control and access data via the *** main users of a typical higher education cloud include students,Faculty,administrative staff,Examination Branch,and Admission *** the main users of the institution are connected to the *** login is provided for all the users for their respective *** can upload their class tutorials,assignments,and tests on the cloud server through which students will be able to access all the teaching material provided by the teachers via Internet using computers and other electronic devices both at home and college and *** paper focuses on the integration of Cloud and IOT for education *** devices can help make life easier for students with special *** of the daydreams for IOT in education involve students taking advantage of new technologies to complete cool new projects.

关键词： the IOT and cloud technologies education system implementation

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

Implementing Augmented Reality in Learning

引用

Psychology Research 2019年第4期9卷 172-177页

作者： ajit singh Patna Women’s College BiharIndia

Technologies are changing and ever *** of the newest developing technologies is augmented reality(AR),which can be applied to many different existing technologies,such as computers,tablets,and *** technology can also be utilized through wearable components,for example,*** this paper review on AR,the following aspects are discussed at length:research explored,theoretical foundations,applications in education,challenges,reactions,and *** different types of AR devices and applications are discussed at length,and an in-depth analysis is done on several studies that have implemented AR technology in an educational setting.

关键词： augmented reality learning and development educator flow theory just-in-time learning

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

Cardiovascular implications of inflammatory bowel disease: An updated review

引用

World Journal of Cardiology 2023年第11期15卷 553-570页

作者： Arshia Bhardwaj Arshdeep singh Vandana Midha ajit Sood Gurpreet singh Wander Bishav Mohan Akash Batta Department of Gastroenterology Dayanand Medical College and HospitalPunjabLudhiana 141001India Department of Internal Medicine Dayanand Medical College and HospitalPunjabLudhiana 141001India Department of Cardiology Dayanand Medical College and HospitalPunjabLudhiana 141001India

Emerging data highlights the heightened risk of atherosclerotic cardiovascular diseases(ASCVD)in patients with chronic inflammatory disorders,particularly those afflicted with inflammatory bowel disease(IBD).This review delves into the epidemiological connections between IBD and ASCVD,elucidating potential underlying ***,it discusses the impact of current IBD treatments on cardiovascular ***,the cardiovascular adverse effects of novel small molecule drugs used in moderate-to-severe IBD are investigated,drawing parallels with observations in patients with rheumatoid *** article aims to comprehensively evaluate the existing evidence supporting these *** achieve this,we conducted a meticulous search of PubMed,spanning from inception to August 2023,using a carefully selected set of *** search encompassed topics related to IBD,such as Crohn’s disease and ulcerative colitis,as well as ASCVD,including coronary artery disease,cardiovascular disease,atrial fibrillation,heart failure,conduction abnormalities,heart blocks,and premature coronary artery *** review encompasses various types of literature,including retrospective and prospective cohort studies,clinical trials,meta-analyses,and relevant guidelines,with the objective of providing a comprehensive overview of this critical intersection of inflammatory bowel disease and cardiovascular health.

关键词： Inflammatory bowel diseases Cardiovascular disorders Pericarditis myocarditis Thromboembolism Chronic inflammation Oxidative stress Endothelial dysfunction

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：