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Carpathian-Balkan Geological Association

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Episodes 2006年第1期29卷 74-75页

作者： Prof. dr. Aleksandar Grubic President Carpathian Balkan Geological Association Faculty of Mining and Geology Kamenicka 6 11001 Beograd

Carpathian-Balkan Geological Association （CBGA）, according to its Statute, ＂is non-governmental, international, scientific, non-political and non-profit making union of geoscientists working in the Carpathian-Balkan realm＂ and surrounding areas. The membership of CBGA is collective and it is ＂open to geoscientists of all countries of the Carpathian-Balkan＂ and neighboring countries. Application of collective membership ＂should be submitted by competent scientific bodies＂.

关键词：喀尔巴阡山脉巴尔干半岛地质环境地质条件地质协会

Commission for the Management ＆ Application of Geoscience Information （CGI）

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Episodes 2006年第3期29卷 231-233页

作者： dr. Kristine Asch Ian Jackson Bundesanstalt fiir Geowissenschafien und Rohstoffe （Federal Institute for Geosciences and Natural Resources） Stilleweg 2 D - 30655 Hannover Germany British Geological Survey Kingsley Dunham Centre Keyworth Nottingham NG12 5GG UK

An introduction to CGI Information in general and digital information in particular, underpins all of the IUGS strategic objectives. CGI is helping to address a growing need to improve the quality and range of both information content and the applications that are used to acquire, analyse, process and disseminate geoscience data. It will do this by the exchange of knowledge and best practice and the support for standards. CGI is a new （strictly speaking, re-activated） Commission, founded by the lUGS in late 2002 following the demise of an earlier information Commission, COGEOINFO. Early tasks for CGI were to establish its objectives, set up its structure and modus operandi, elect its Council and establish a web presence. The new Commission was formally ratified by the IUGS at the IGC in Florence in 2004 and also held its first full Open Meeting there.

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HYdrOGENOLYSIS　OF　ARYL　HALIDES　WITH　POWDERS　OF　ALKALI　METAL　HYdrIDES　OF　NANOMETRIC　SIZE

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Chinese Chemical Letters 1995年第8期6卷 735-738页

作者： Zhang, YP Liao, SJ Xu, Y Yu, dr Chinese Acad Sci Dalian Inst Chem Phys Dalian 116023 Peoples R China Chinese Acad Sci Shanghai Inst Organ Chem Organomet Chem Lab Shanghai 200032 Peoples R China

Superfine powders of alkali metal hydrides of nanometric size exhibit very high reactivity in the hydrogenolysis of aryl halides.

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Accelerated engineering properties of high and low volume fly ash concretes reinforced with glued steel fibers

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Frontiers of Structural and Civil Engineering 2013年第4期7卷 429-445页

作者： Vallarasu Manoharan SOUNTHARARAJAN dr.Anandan SIVAKUMAR Structural Engineering Division School of Mechanical and Building SciencesVIT UniversityVellore 632014India

The present study focuses on the improvement of pozzolanic reaction of fly ash particles with the cement hydration *** and high volume fly ash concrete mixtures were studied systematically with the addition of accelerating admixtures and accelerated curing of the concrete specimens in a steam chamber for 18 h at 75℃.Also,the reinforcing effects of glued steel fibers addition on the compressive and flexural performance of fly ash concrete were *** test results indicated that the addition of accelerator improved the rate of hardening and the inclusion of steel fibers provided higher flexural ***,it can be noted that the high volume fly ash(50%)addition in concrete showed a reduction in strength;however,the addition of accelerator has compensated the deceleration in strength *** proper selection of concrete ingredients,addition of accelerator and initial steam curing for 18 h showed better improvement on the engineering properties in fly ash concrete.A maximum increase(41.7%)in compressive strength of fly ash concrete around 52.90 MPa was noticed for 25%fly ash substitution and 1.5%steel fibers *** elastic modulus was also calculated in loaded concrete specimen using ultrasonic pulse velocity test and showed a good agreement with the experimental value.

关键词： fly ash pozzolanic index steam curing superplasticizer accelerator steel fibres elastic modulus

A role of computer vision in fruits and vegetables among various horticulture products of agriculture fields: A survey

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Information Processing in Agriculture 2020年第2期7卷 183-203页

作者： Mukesh Kumar Tripathi dr.Dhananjay D.Maktedar Department of CSE Guru Nanak Dev Engineering CollegeBidarKarnatakaIndia

Computer vision is a consistent and advanced technique for image processing,with the propitious outcome,and enormous potential.A computer vision has been strongly adopted in the heterogeneous domain including *** the study of existing research on the role of computer vision in fruits and vegetables among various horticulture products of agriculture fields it is noticed that,the existing survey paper has not focused properly on mathematical framework,feature descriptor,defect detection on multiple datasets of fruits and vegetables *** has motivated us to undertake an extensive *** this paper,we examine the paper broadly related to fruits and vegetables among various horticulture products of agriculture fields,specific model,data pre-processing,data analysis method and overall value of performance accuracy by using a particular performance ***,we study the different type of disease present in various fruit and *** have also focused on the comparison of different machine learning approach with respect to different performance metrics on the same ***,we have found that among all existing machine learning techniques SVM give better classification accuracy.A generalized framework to grade the quality and defect detection of multiple fruits and vegetables is also proposed in this *** paper covers the survey of ninety-eight papers closely related to computer vision in the agricultural *** the survey,we have found that computer vision plays an important role and has a large potential to address the challenges related to the agricultural fields.

关键词： Computer vision Agriculture Survey Pre-processing Descriptor Data-analysis Defect detection Monitoring

SYNERGIC　EFFECT　OF　POLYMER　SUPPORTED　Pd－Pt　BIMETALLIC　CATALYSTS　ON　THE　HYdrOGENATION　OF　NITROAROMATICS

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Chinese Chemical Letters 1996年第7期7卷 663-664页

作者： Yang, B Yu, ZK Xu, Y Liao, SJ Yu, dr CHINESE ACAD SCI DALIAN INST CHEM PHYSDALIAN 116023PEOPLES R CHINA

s: Hydrogenation of nitroaromatics has been carried out under mild conditions using poly-N-vinyl-2-pyrrolidone supported Pd-Pt bimetallic catalysts (PdCl2 and H2PtCl6 as catalyst precursors).The catalytic activities of the bimetallic catalysts are significantly higher than those of themonometallic Pd or Pt catalyst especially in the case of the hydrogenation of substitutednitroaromatics due to a remarkable synergic effect. The ratio of Pd to Pt in the catalyst influences theactivity of the catalyst.

关键词： SELECTIVE HYdrOGENATION