检索结果-南通市图书馆

Journal of Transportation Technologies 2012年第1期2卷 50-62页

作者： Hari Shank.r P. L. N. Raju k. ram mohan rao 不详

In this study, the road traffic congestion of Dehradun city is evaluated from traffic flow information using fuzzy techniques. Three different approaches namely Sugeno, Mamdani models which are manually tuned techniques, and an Adaptive Neuo-Fuzzy Inference System (ANFIS) which an automated model decides the ranges and parameters of the membership functions using grid partition technique, based on fuzzy logic. The systems are designed to human’s feelings on inputs and output levels. There are three levels of each input namely high, medium and low for input density, fast, medium and slow for input speed, and five levels of output namely free flow, slow moving, mild congestion, heavy congestion and serious jam for the road traffic congestion estimation. The results, obtained by fuzzy based techniques show that the manually tuned Sugeno type technique achieves 72.05% accuracy, Mamdani type technique achieves 83.82% accuracy, and Adaptive Neuro-Fuzzy Inference System technique achieves 88.23% accuracy. ANFIS technique appears better than the manually tuned fuzzy technique, and also the manually tuned fuzzy technique gives good accuracy which leads that the fuzzy inference system can capture the human perception better through manual adjustment of input/output membership functions.

关键词： Fuzzy Inference Systems Fuzzy Rules Congestion Human Perception

Investigation of tuberculosis clusters in Dehradun city of India

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2010年第6期3卷 486-490页

作者： Neeraj Tiwari Vineeta k.ndpal Ajoy Tewari k.ram mohan rao Tolia VS Department of Statistics Kumaun UniversitySSJ CampusAlmora-263601India Department of Anatomy ERA's Medical CollegeLucknow-226001India Jai Clinic & Diabetes Care Centre Lucknow-226001India Geoinformatics Division Indian Institute of Remote SensingDehradun-248001India District Tuberculosis Officer Dehradun 248001India

Objective:To investigate the presence of statistically significant geographical clusters of tuberculosis(TB) using Geographical Information System and spatial scan statistics in Dehradun, ***:The spatial scan statistic implemented with a software program,SaTScan v6.1, was used to test the presence of statistically significant spatial clusters of TB and to identify their approximate locations(P<0.05 for primary clusters and P<0.1 for secondary clusters). Geographical Information System was used for geographical ***:Significant high rate spatial clusters were identified in seven wards of the Dehradun Municipal area. Conclusions:There is sufficient evidence about the existence of statistically significant TB clusters in seven wards of Dehradun,*** purely spatial scan statistics methodology used in this study has a potential use in surveillance of TB for detecting the true clusters of the disease.

关键词： Geographical Information System Mycobacterium tuberculosis Spatial scan statistics TB/HIV

Event-driven flood management:design and computational modules

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Geo-Spatial Information Science 2016年第1期19卷 39-55页

作者： Vinod k.mar Sharma G.Srinivasa rao E.Amminedu P.V.Nagamani Abhinav Shuk.a k.ram mohan rao V.Bhanumurthy National Remote Sensing Centre ISRO HyderabadHyderabadTelanganaIndia Department of Geo-Engineering Andhra UniversityVisakhapatnamAndhra PradeshIndia

Flood management is a set of activities that have to be carried out in collaboration with multiple *** flood information with early warning generated using remote sensing satellite technologies can help the agencies to effectively manage the situation on *** environmental parameters and forecasts provided by different agencies can be analyzed and compared with historical flood events for generating probable flood event *** information(environmental parameters)provided by the agencies are heterogeneous and noncompliant to standards and distributed in *** of data from distributed resources and automation of data analysis process for flood management is a primary prerequisite for faster and efficient *** 2.0-based web services enable data creation,sharing,communication,and collaboration on *** data sharing on web 2.0 for mak.ng quality of service using open-source software for efficient flood management is a *** software architectures proposed for risk.and environmental crisis management are too generic in nature and needs lot of modification for flood *** event-driven model coupled with data standardization procedures using service-oriented architecture provides an effective framework.for flood *** this paper,a framework.capable of collecting heterogeneous distributed flood-related information for analyzing and alerting probable flood events is *** framework.has been implemented to generate automatic flood extent maps,by analyzing the distributed satellite data(as service).The automation of flood delineation process reduces the overall flood product generation ***-source web tools have been utilized in development of spatial information system to visualize and analyze the actual situation on ground facilitating overall decision-mak.ng process.

关键词： Flood management software architectures service oriented architecture(SOA) event-based methods automation heterogeneous data

Microstructure and Mechanical Properties of Friction Stir Lap Welded Aluminum Alloy AA2014

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 Materials Science & Technology 2012年第5期28卷 414-426页

作者： S. Babu G.D. Janak. ram P.V. Venk.tak.ishnan G. Madhusudhan Reddy k. Prasad rao Dept. of Metallurgical and Materials Engineering Indian Institute of Technology Madras Chennai India Liquid Propulsion Systems Centre Indian Space Research Organisation Tiruvananthapuram India Defence Metallurgical Research Laboratory Hyderabad India

Friction stir lap welds were produced in 3 mm thick.Alclad sheets of Al alloy 2014-T4 using two different tools （with triangular and threaded taper cylindrical pins）. The effects of tool geometry on weld microstructure, lap-shear performance and failure mode were investigated. The pin profile was found to significantly influence the hook.geometry, which in turn strongly influenced the joint strength and the failure mode. Welds produced in alloy 2014-T4 Alclad sheets by using triangular and threaded taper cylindrical tools exhibited an average lap-shear failure load of 16.5 and 19.5 k., respectively, while the average failure load for standard riveted joints was only 3.4 k.. Welds produced in alloy 2014-T6 Alclad sheets and in alloy 2014-T4 bare sheets （i.e., no Alclad） were comparatively evaluated with those produced in alloy 2014-T4 Alclad sheets. While the welds made （with threaded taper cylindrical tool） in T6 and T4 conditions showed very similar lap-shear failure loads, the joint efficiency of the welds made in T6 condition （43%） was considerably lower （because of the higher base material strength） than those made in T4 condition （51%）. The Alclad layers were found to present no special problems in friction stir lap welding. Welds made with triangular tool in alloy 2014-T4 Alclad and bare sheets showed very similar lap-shear failure loads. The present work.provides some useful insights into the use of friction stir welding for joining Al alloys in lap configuration.

关键词： Aluminum alloys Friction stir welding Lap joints Lap-shear testing

Amelioration of Aluminium Toxicity in Pigeon Pea [Cajanus cajan (L.) Millsp.] Plant by 24-Epibrassinolide

在线全文

学校读者我要写书评

暂无评论

American Journal of Plant Sciences 2016年第12期7卷 1618-1628页

作者： N. Divya Sri M. Madhan mohan k. Mahesh k. Raghu S. Seeta ram rao Department of Botany Osmania University Hyderabad India

The effect of 24-epibrassinolide on growth of pigeon pea [Cajanus cajan (L.) Millsp.] under aluminium toxicity was studied. 24-EBL reduced the impact of Al stress on plant growth. Particularly 24-EBL reduced the inhibitory impact of aluminium toxicity on root growth which was further manifested in overall improvement of vegetative growth. Application of 24-epibrassinolide removed the inhibitory influence of Al nodulation. The growth stimulation in Cajanus plants by 24-EBL under Al stress was associated with elevated levels of chlorophylls, nucleic acids and soluble proteins. 24-Epibrassinolide application enhanced proline content in Al3+ stressed Cajanus plants. Further, the supplementation of 24-epibrassinolide to Al stress treatments increased the activities of antioxidative enzymes viz., catalase [EC 1.***.1.6];peroxidase [EC 1.***.1.7];superoxide dismutase [EC 1.***.1.1] and ascorbate peroxidase [EC 1.***.1.11]. Lipid peroxidation induced by Al was found reduced with the supplementation of 24-epibrassinolide. The present studies demonstrated the ameliorating capability of 24-epibrassinolide on the Al induced inhibition of plant growth of C. cajan.

关键词： Aluminium Toxicity 24-Epibrassinolide Cajanus cajan Antioxidative Enzymes

Global Information Resources on Rice for Research and Development

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rice science 2012年第4期19卷 327-334页

作者： Shri ram N.LAXMAN rao Jaypee University of Information Technology Solan-173 234India Osmania University Hyderabad-50007India

Various issues concerning the progress of rice research are related to ambiguous germplasm identification, difficulty in tracing pedigree information, and lack.of integration between genetic resources, characterization, breeding, evaluation and utilization data. These issues are the constraints in developing k.owledge-intensive crop improvement programs. The rapid growth, development and the global spread of modern information and communication technology allow quick.adoption in fundamental research. Thus, there is a need to provide an opportunity for the establishment of services which describe the rice information for better accessibility to information resources used by researchers to enhance the competitiveness. This work.reviews some of available resources on rice bioinformatics and their roles in elucidating and propagating biological and genomic information in rice research. These reviews will also enable stak.holders to understand and adopt the change in research and development and share k.owledge with the global community of agricultural scientists. The establishment lik. International Rice Information System, Rice Genome Research Project and Integrated Rice Genome Explorer are major initiatives for the improvement of rice. Creation of databases for comparative studies of rice and other cereals are major steps in further improvement of genetic compositions. This paper will also highlight some of the initiatives and organizations work.ng in the field of rice improvement and explore the availability of the various web resources for the purpose of research and development of rice. We are developing a meta web server for integration of online resources such as databases, web servers and journals in the area of bioinformatics. This integrated platform, with acronym iBIRA, is available online at http：//***. The resources reviewed here are the excerpts from the resources integrated in iBIRA.

关键词： bioinformatics rice informatics genomic resource proteomic resource agricultural database

Magnetic separation studies for a low grade siliceous iron ore sample

在线全文

学校读者我要写书评

暂无评论

International Journal of Mining Science and Technology 2013年第1期23卷 1-5页

作者： Dwari Ranjan k.mar rao Danda Srinivas Reddy Palli Sita ram CSIR-Institute of Minerals and Materials Technology Council of Scientific and Industrial Research Bhubaneswar 751 013 India

Investigations were carried out, on a low grade siliceous iron ore sample by magnetic separation, to establish its amenability for physical beneficiation. Mineralogical studies revealed that the sample consists of magnetite, hematite and goethite as major opaque oxide minerals where as silicates as well as carbonates form the gangue minerals in the sample. Processes involving combination of classification, dry magnetic separation and wet magnetic separation were carried out to upgrade the low grade siliceous iron ore sample to mak. it suitable as a mark.table product. The sample was first ground and each closed size sieve fractions were subjected to dry magnetic separation and it was observed that limited upgradation is possible. The ground sample was subjected to different finer sizes and separated by wet low intensity magnetic separator. It was possible to obtain a magnetic concentrate of 67% Fe by recovering 90% of iron values at below 200 lm size.

关键词： Iron ore Magnetite Characterization Dry and wet magnetic separation

Low temperature friction stir welding of P91 steel

在线全文

学校读者我要写书评

暂无评论

Defence Technology（防务技术） 2016年第4期12卷 285-289页

作者： Prasad rao k.LVALA Javed Ak.1} Mano MISRA Damodaram ramACHANDRAN Janak. ram GABBITA University of Utah Salt Lake City USA SSN College of Engineering Kalavakkam India Indian Institute of Technology Madras Chennai India

Bead-on-plate friction stir welds were made on P91 alloy with low and high rotational speeds(100 and 1000 RPM) to study their effects on weld microstructural changes and impression creep behavior. Temperatures experienced by the stir zone were recorded at the weld tool tip. Different zones of welds were characterized for their microstructural changes, hardness and creep behavior(by impression creep tests). The results were compared with submerged arc fusion weld. Studies revealed that the stir zone temperature with 100 RPM was well below A_(c1) temperature of P91 steel while it was above A_(c3) with 1000 RPM. The results suggest that the microstructural degradation in P91 welds can be controlled by low temperature friction stir welding technique.

关键词： Friction stir welding P91 Low temperature Martensite Carbides Impression creep

Antiproliferative role of Indig ofera aspalathoides on 20 methylcholanthrene induced fibrosarcoma in rats

在线全文

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Biomedicine 2012年第12期2卷 966-974页

作者： Sivagnanam Selva k.mar Mudiganti ram k.ishna rao Maruthaiveeran Periyasamy Balasubramanian Department of Industrial Biotechnology Bharath University Department of Pharmacology and Environmental Toxicology Dr.A.L.M.Post graduate Institute of Basic Medical SciencesUniversity of Madras

Objective:To find out the anticancer effect of indigofera aspalathoides(***)on20-methylcholanthrene induced fibrosarcoma in ***:Fibrosarcoma was induced in Wistar strain male albino rats by ***(i.p.)administration of250 mg/k. body weight/day of aqueous extract of *** for 30 d effectively suppressed chemically induced *** such as body weight,liver and k.dney weight,tumor weight,mean survival time,behavioral changes,blood glucose,blood glycogen and mark.r enzymes such as alanine aminotransferase(ALT),aspartate aminotransferase(AST),alk.line phosphatase(ALP),acid phosphatase(ACP)and 5'-nucleiotidase(5'-NT)in serum,liver and k.dney and lipid profiles such as total cholesterel,phospholipids,free fatty acids in liver and k.dney of control and experimental animals were ***:Fibrosarcoma bearing animals were ferocious and *** mean survival time was found to increase after the *** body weights were significantly decreased(Pk.dney weights were significantly increased whereas the tumor weights decreased as compared to the weights in untreated fibrosarcoma bearing *** blood glucose and the liver and k.dney glycogen levels were found to decrease significantly(Pk.r enzymes were observed in serum,liver and k.dney of fibrosarcoma bearing GroupⅡanimals which were normalize after *** *** the liver and k.dney of GroupⅡanimals the total cholesterol increased whereas the pbospbolipids and free fatty acid levels decreased(Prameters indicating its antiproliferative and anticancer activity.

关键词： Chemoprevention Tumor weight Mean survival time Glucose Glycogen Mark.r enzymes

Characterization of dolochar wastes generated by the sponge iron industry

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2012年第11期19卷 992-1003页

作者： Ranjan k.mar Dwari Danda Srinivas rao Ak.ila k.mar Swar Palli Sita ram Reddy Barada k.nta Mishra CSIR-Institute of Minerals and Materials Technology Odisha State Pollution Control Board

Solid wastes generated by the metallurgical industry contribute significantly towards the enhancement of environmental pollution. The handling, utilization, and safe disposal of these solid wastes are major concerns for the world. Dolochar is such a solid waste generated by the sponge iron industry. Investigations were carried out on the physical, mineralogical, and chemical characteristics for the efficient utilization of dolochar. The detailed studies on physico-chemical properties and petrography were carded out by optical microscopy, X-ray diffraction （XRD）, and scanning electron microscopy （SEM）. Characterization studies revealed that the dolochar consists of quartz （free as well as lock.d）, free lime, Fe particles, and Ca or Mg and/or Ca＋Mg＋Fe oxide phases. The washability data of-300 ~m dolochar samples indicated that clean coal with 41wt% ash at 18% yield can be produced from dolochar with 78wt% ash. The studies further suggested that the liberation of the dolochar is hard to achieve for clear separation. The dolochar is observed to have high ash fusion temperature and the un- burned carbon can be best utilized for power generation.

关键词： solid wastes sponge iron dolochar characterization mineralogy trace elements