检索结果-南通市图书馆

Incidence and management of white grub, Schizonycha ruficollis on seedlings of teak （Tectona grandis Linn, f,）

Insect Science 2007年第5期14卷 411-418页

作者： NITIN kulkarni KAILASH CHANDRA PRAFULLA NARAHAR WAGH KAILASH CHANDRA JOSHI RAM BHAJAN SINGH Forest Entomology Division Tropical Forest Research Institute Jabalpur (M. P.) Central Regional Station Zoological Survey of India Vijay Nagar Jabalpur (M. P.) Forest Development Corporation of Maharashtra Nagpur India

In investigation was conducted annually from 2002 to 2005 between the second week of May and the end of September on the incidence of scarab beetle, Schizonycha ruficollis （Fabricius） in a teak （Tectona grandis L.f.） nursery at Ramdongari, Nagpur, India. The immature stages, that is white grubs of the scarab beetle damaged 14%-52% of teak seedlings in the nursery beds, whereas the adult of the species, that is scarab beetles, were recorded on three new host trees （ Ziziphus xylopyra, Acacia catechu and A. leucophloea） in addition to the reported hosts such as ziziphus （Z. jujuba and Z. mauritiana）. Beetles of the S. ruficollis started emerging from the nursery beds just after the pre-monsoon showers and continued for 10-18 days. While beetle of S. ruficollis defoliated tree hosts available in the surroundings, the immature stages of the beetle caused major damage by feeding on root systerfls of teak seedlings with symptoms of wilting and mortality in forest nursery beds. The result of chemical and biological treatments for the management of grubs of S. ruficollis in nursery beds indicated phorate 10% granular at the rate of 20 g/m^2 and chlorpyriphos 20% emulsifiable concentrate at the rate of 5.0 mL/m^2 to be effective. Grubs of S. ruficollis have not been recorded previously as a major pest of teak （T. grandis）. This is also the first report on occurrence of S. ruficollis adults on tree hosts such as Z. xylopyra, A. catechu and A. leucophloea. White grubs being pests of economic importance and the toughest insects to manage, information given in this paper on incidence, pest status and management of Schizonycha ruficollis is of importance to researchers and forest nursery managers.

关键词： bioecology Coleoptera field incidence forest nursery insect pest management,insecticides Melolonthinae Scarabaeidae

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

Comparing techniques for measuring corticosterone in tadpoles

引用

Current Zoology 2015年第5期61卷 835-845页

作者： Pablo BURRACO Rosa ARRIBAS Saurabh S. kulkarni Daniel R. BUCHHOLZ Ivan GOMEZ-MESTRE Department of Wetland Ecology Estacion Biologica de Dofiana (EBD-CSIC) C/Americo Vespucio s/n 41092 Sevilla Spain Department of Pediatrics Yale School of Medicine Yale University New Haven CT 0651 USA Department of Biological Sciences University of Cincinnati Cincinnati OH 45221 USA

Glucocorticoids play a key role in mediating stress responses in vertebrates. Corticosterone （CORT） is the main glucocorticoid produced in amphibians, birds, and reptiles, and regulates several metabolic functions. The most common methods for quantifying CORT are competitive binding immunoassays： radioimmunoassay （RIA） and enzyme immunoassay （EIA）. RIA has been broadly used since the 1980＇s but it requires radioactivity. Commercial EIA kits permit quantifying hormone levels without radioactivity although the requirement for a larger sample volume may be a strong limitation for measurements involving larval amphibians. Here we used Xenopus laevis tadpoles to compare the performance of three commonly used procedures for determination of CORT： RIA on a chloroform extract of whole-body homogenate, EIA on plasma, and EIA on supematant of whole-body homogenate. We treated tadpoles with exogenous CORT at 0, 25, 50, and 100 nM. RIA could distinguish between 0 and 25 nM, and EIA on plasma between 0 and 50 nM, whereas whole-body homogenate EIA only detected significant differences between 0 and 100 riM. Each procedure presents advantages and disadvantages regarding sensitivity, the use of radioactivity, sample size, handling time, and economic cost. RIA is preferred when studying small-bodied animals from which blood samples cannot be obtained. When CORT level differences are intermediate and blood sampling is possible, EIA on plasma is a good non-radioactive alternative. EIA on whole-body homogenates may be useful to assess qualitative changes in CORT levels when considerable differences are expected. Finally, we discuss our findings in the context of previous studies on CORT in amphibians [Current Zoology 61 （5）： 835-845, 2015].

关键词： Corticosterone Radioimmunoassay Enzyme immunoassay Glucocorticoids Amphibians Stress

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 Characterization of Advanced Red Mud and MWCNTs Based EMI Shielding Material via Ceramic Processing

引用

Materials Sciences and Applications 2016年第4期7卷 192-201页

作者： sarika Verma Sudhir Sitaram Amritphale Satyabrata Das Council of Scientific and Industrial Research-Advanced Materials and Processes Research Institute Bhopal India

For the first time in the world advanced multi layered Red Mud and MWCNTs (ARMC) based EMI shielding material has been developed at CSIR-AMPRI, Bhopal. Red mud provides oxides of titanium and iron as precursor and the MWCNTs provides electrical conductivity characteristics necessary for making desired EMI shielding materials. The novel process involves unique designing of chemical compositions and mineralogical phases of red mud, MWCNTs together with appropriate additive and solvent which results in the simultaneous and synergistic chemical reactions among various constituents thereby forming tailored precursor powder. Further, the ceramic processing of tailored precursor powder in appropriate environment enables formation of advanced ARMC shielding material having a variety of ceramic phases with multi elemental compositions and multi layered crystal structures. The synthesized material was characterized by various techniques namely XRD, PL, FESEM, EDXA. The reflection loss (R. L.) of the sample was calculated based on the measured complex permittivity and permeability. The advanced ARMC material with thickness t = 1.5 mm showed a minimum R. L. of -35.5 Db at 14.0 GHz with a response band width of 1.8 GHz. Thus, the developed advanced ARMC material acts as a good EMI wave absorber.

关键词： Red Mud MWCNTs EMI Shielding Ceramic Processing Multilayered Structure

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

Introduction of Damping,Synchronizing and Inertial Effects Using Controlled Power Injection Devices

引用

CSEE Journal of Power and Energy Systems 2017年第4期3卷 408-418页

作者： Kaustav Dey P.Agnihotri A.M.Gole A.M.kulkarni Department of Electrical Engineering Indian Institute of TechnologyBombayIndia Department of Electrical and Computer Engineering University of ManitobaCanada

This paper presents a theoretical study of damping,synchronizing and inertial control laws,implemented using controllable power injection devices like HVDC,FACTS or renewable-energy/storage systems which have power-electronic grid *** approach is to use a simplified dynamical model of a power system to arrive at generalized results regarding the effect of the strategies on the electro-mechanical dynamics of the *** results are not dependent on the size,network topology and operating condition of the power *** paper presents a differential-algebraic formulation and generalized eigenvalue analysis to facilitate a unified study of the effects of the control laws on the electro-mechanical *** damping,synchronizing and inertial control laws can themselves be extended to include the possibility of mutualdamping,synchronizing and inertial effects when multiple devices are *** control laws are not only simple and intuitive,but also are found to have a predictable and generally beneficial impact on the electro-mechanical dynamics of the grid,even when detailed models are considered.

关键词： Dynamic stability high voltage direct current(HVDC) inertia emulation power system control

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

Dual-step hybrid SERS scheme through the blending of CV and MoS_(2) NPs on the AuPt core-shell hybrid NPs

引用

Journal of Materials Science & Technology 2022年第12期107卷 1-13页

作者： Rutuja Mandavkar Shusen Lin Rakesh kulkarni Sanchaya Pandit Shalmali Burse Md Ahasan Habib Puran Pandey Sundar Kunwar Jihoon Lee Department of Electronic Engineering College of Electronics and InformationKwangwoon UniversityNowon-guSeoul01897South Korea

Along with a wide range of applications,the surface-enhanced Raman spectroscopy(SERS)is a promi-nent analytical technique to recognize and detect molecules and materials even at an extremely low mo-lar *** this work,a unique hybrid SERS platform is demonstrated by the incorporation of molybdenum disulfate(MoS_(2))nanoparticles(NPs)onto the core-shell AuPt hybrid NPs(HNPs)for the en-hanced molecular Raman vibration of crystal violet(CV).The hybrid platform takes the advantage of both the electromagnetic mechanism(EM)offered by the AuPt HNPs and chemical mechanism(CM)owing to the MoS_(2)*** distinctive core-shell morphology of AuPt HNPs with the high-density background Au NPs is attained by a unique two-step solid-state dewetting method,which can offer a high concentration of electromagnetic hot *** the same time,the MoS_(2)NPs can provide an ample charge transfer with abundant active *** the hybrid SERS approach,a dramatic SERS enhancement of CV Raman vibration is demonstrated,and the SERS capability is thoroughly *** addition,the finite-difference time-domain(FDTD)simulations provide a deeper understanding of the electromagnetic field distributions for various configurations of nanostructures and their hybrid combinations:i.e.,HNPs,alloy NPs,MoS_(2)/HNPs configurations.

关键词： Surface-enhanced Raman spectroscopy(SERS) Hybrid core-shell nanoparticles Plasmonic nanoparticles MoS_(2)nanoparticles FDTD simulation

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

Recent Advances in Printed Thin-Film Batteries

引用

Engineering 2022年第6期8卷 238-261页

作者： Benoit Clement Miaoqiang Lyu Eeshan Sandeep kulkarni Tongen Lin Yuxiang Hu Vera Lockett Chris Greig Lianzhou Wang Nanomaterials Centre School of Chemical Engineering and Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandBrisbaneQLD 4072Australia Printed Energy Pty.Ltd. BrisbaneQLD 4001Australia Printed Energy Pty.Ltd. TempeAZ 85284USA Dow Centre for Sustainable Engineering Innovation School of Chemical EngineeringThe University of QueenslandBrisbaneQLD 4072Australia

The rapidly increasing demand for wearable electronic devices has motivated research in low-cost and flexible printed batteries with diverse form factors and *** the past,technological achieve-ments in the field have been emphasized,overlooking the industrial and market ***,different applications require different battery chemistries and formats,that greatly impacts the manu-facturing process and competition *** chemistries and formats should therefore be selected carefully to maximize the chances for commercial *** some of these technologies are starting to be marketed for portable electronics,there is a pressing need to evaluate different printing technologies and compare them in terms of the processing constraints and product requirements of specific electronic *** evaluating the intrinsic strengths and current limitations of printed battery technologies,development pathways can be prioritized,and potential bottlenecks can be overcome to accelerate the path to market.

关键词： Printed battery Electronic device Flexible battery Roll-to-roll printing Monolithic integration

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

Light weight HTPB-clay nanocomposites (HCN) with enhanced ablation performance as inhibition materials for composite propellant

引用

Defence Technology（防务技术） 2021年第2期17卷 559-570页

作者： Kavita Ghosh L.V.Gaikwad R.K.Kalal P.A.kulkarni Arvind Kumar Shaibal Banerjee Manoj Gupta High Energy Materials Research Laboratory SutarwadiPune411021India Defence Institute of Advanced Technology GirinagarPune411025India

In the present study,organically modified Montmorillonite clay with polar moiety,the Cloisite 30B,is used for preparation of Hydroxyl terminated polybutadiene(HTPB)-clay nanocomposites(HCN)by dispersion of nanoclay in polymer matrix under high shear *** nanocomposites thus prepared are evaluated in composite propellants as inhibitor material for their functional *** inhibition formulations containing 5 wt%-15 wt%of nanoclay,with or without the conventional filler Sb2O3,were *** these formulations were evaluated for their physical,mechanical,thermal,and ablative *** rate and density of the compositions containing Cloisite 30B is around 23%and 5%lower respectively in comparison of the base *** capability of these compositions is twofold higher than that of base *** compositions have also been evaluated for their smoke generation tendency by measuring infra red(IR)attenuation in the wavelength range 1.3 mm e5.6 mm and 8 mme13 mm and thereby compared with the base *** corresponding results confirmed that the compositions containing Cloisite 30B as filler have much lower IR attenuation than compositions with conventional filler,*** of 5%Sb2O3 by nanoclay showed 8%reduction in IR attenuation rate which further reduced to 16%on replacement of 15%of *** bonding of HCN based inhibitors is also comparable or even better than conventional ***,the nanoclay composites with Cloisite 30B as filler exhibit all desirable properties of an inhibitor.

关键词： Nanocomposite Inhibitor Composite propellant Ablation

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

A New Species of Euphlyctis (Amphibia, Anura, Dicroglossidae) from the West Coastal Plains of India

引用

Asian Herpetological Research 2016年第4期7卷 229-241页

作者： Hebbar PRITI Chandrakanth Rukkappa NAIK Kadaba Shamanna SESHADRI RamitSINGAL Madhava kulkarni VIDISHA Gudasalmani RAVIKANTH KotambyluVasudeva GURURAJA Ashoka Trust for Research in Ecology and the Environment (ATREE) Royal Enclave Sriramapura Jakkur (P.O) Bangalore 560054 India Manipal University Manipal 576104 India Wildlife Range Kumbaravada Nujji Section Dandeli Anshi Tiger Reserve Joida Taluk 581187 India Department of Biological Sciences National University of Singapore 14 Science Drive 4 Block S3 Singapore Independent Researcher B-14 Law Apartments Karkardooma Delhi 110092 India Gubbi Labs LLP Science and Media Center WS-5 I Floor Entrepreneurship Center Indian Institute of Science Campus Bengaluru 560012 India Srishti Institute of Art Design and Technology N4 Yelahanka New Town Bengaluru 560064 India

The genus Euphlyctis is widely distributed across Southwestern Arabian Peninsula into parts of Southeast Asia. Five of the seven known Euphlyctis species are found within the Indian subcontinent. Here, we describe a new species, Euphlyctis karaavali sp. nov. from South-west coast of India, which was discovered during surveys engaging citizens. This species was identified to be distinct based on molecular and morphological evidence. We provide a detailed description of this species along with its call description and compare it with closest congeners. Previous studies in the region had identified this species as E. hexadactylus but suggested the possibility of it being cryptic. Genetically E. karaavali sp. nov. is distinct from E. hexadactylus with a genetic divergence of 9.2% （12S and 16S） and shows a high divergence with E. kalasgramensis and E. ehrenbergii （13.04% each）. Our findings are discussed in the context of cryptic species discovery, citizen engagement in scientific progress and conservation measures while suggesting future directions.

关键词： Karaavali skittering frog citizen science molecular identification agriculture cryptic species

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

用于吖内酯合成的二氧化钛纳米晶体材料(英文)

引用

催化学报 2014年第2期35卷 196-200页

作者： Priyanka Anandgaonker Ganesh kulkarni Suresh Gaikwad Anjali Rajbhoj Department of Chemistry Dr. Babasaheb Ambedkar Marathwada University

Titanium dioxide nanoparticles were prepared by a electrochemical reduction method using para-meters such as current density, solvent polarity, distance between electrodes, and concentration of stabilizers to control the size of the nanoparticles. The nanoparticles were characterized by UV-Vis spectroscopy, X-ray diffraction, scanning electron microscopy and transmission electron microsco-py, and their catalytic performance was tested for the synthesis of a series of 4-aryldiene-2-phenyl-5(4)-oxazolones from the cyclodehydration and condensation of the respec-tive aldehyde, hippuric acid and acetic anhydride. Easy availability, reusability and eco-friendliness were some prominent features of the nanocrystalline titanium dioxide catalyst.

关键词：二氧化钛纳米颗粒二氧化钛催化剂合成吖内酯 UV-Vis光谱透射电子显微镜扫描电子显微镜 X-射线衍射

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

Drugs for Non-alcoholic Steatohepatitis (NASH): Quest for the Holy Grail

引用

Journal of Clinical and Translational Hepatology 2021年第1期9卷 40-50页

作者： Mithun Sharma Madhumita Premkumar Anand V kulkarni Pramod Kumar D Nageshwar Reddy Nagaraja Padaki Rao Department of Hepatology Asian Institute of GastroenterologyHyderabadIndia Department of Hepatology PGIMERChandigarhIndia Department of Gastroenterology Asian Institute of GastroenterologyHyderabadIndia

Nonalcoholic fatty liver disease (NAFLD) is a global epidemic that is likely to become the most common cause of chronic liver disease in the next decade, worldwide. Though numerous drugs have been evaluated in clinical trials, most of them have returned inconclusive results and shown poorly-tolerated adverse effects. None of the drugs have been approved by the Food and Drug Administration for treating biopsy-proven non-alcoholic steatohepatitis (NASH). Vitamin E and pioglitazone have been extensively used in treatment of biopsy-proven nondiabetic NASH patients. Although some amelioration of inflammation has been seen, these drugs did not improve the fibrosis component of NASH. Therefore, dietary modification and weight reduction have remained the cornerstone of treatment of NASH;moreover, they have shown to improve histological activity as well as fibrosis. The search for an ideal drug or ‘Holy Grail’ within this landscape of possible agents continues, as weight reduction is achieved only in less than 10% of patients. In this current review, we summarize the drugs for NASH which are under investigation, and we provide a critical analysis of their up-to-date results and outcomes.

关键词： Fatty liver NAFLD NASH Obeticholic acid Saroglitazar

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：