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检索条件"任意字段=第四届国际计算机与计算技术在农业中的应用研讨会"

共 246 条记录，以下是141-150 订阅

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Spatial Statistical Analysis in Cow Disease Monitoring Based on GIS

Spatial Statistical Analysis in Cow Disease Monitoring Based...

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第四届国际计算机与计算技术在农业中的应用研讨会

作者： Lin Li Yong Yang Hongbin Wang Jing Dong Yujun Zhao Jianbin He School of Animal Husbandry and Veterinary Medicine Shenyang Agricultural University School of Information and Electrical Engineering Shenyang Agricultural University School of anima Medicine Northeast Agricultural University

In this paper,we analyze cow endemic fluorosis spatial distribution characteristics in the target district based on combination of spatial statistical analysis and *** disease geographical distribution relates closely to the environmental factors of habitats and the correct analysis of the spatial distribution of the disease for monitoring and prevention plays an important ***,the amount of monitoring spots is smaller and the monitored data are very *** to use the limited data to show the general spatial distribution of the disease is a key issue in building the efficient spatial monitoring *** use GIS application software ArcGIS9.1 to overcome the lack of data of sampling sites and establish a prediction model in estimation of the disease *** with the true disease distribution,the prediction model has a well coincidence and is feasible and provides a fundamental application for other study on space-related cow diseases.

关键词： Cow disease GIS Spatial statistic analysis

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Influences of Temperature of Vapour-Condenser and Pressure in the Vacuum Chamber on the Cooling Rate during Vacuum Cooling

Influences of Temperature of Vapour-Condenser and Pressure i...

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第四届国际计算机与计算技术在农业中的应用研讨会

作者： Tingxiang Jin Gailian Li Chunxia Hu School of Mechanical & Electricity engineering Zhengzhou University of Light Industry

The temperature of vapour-condenser below 0℃ and the final pressure in the vacuum chamber below 0.61 kPa during vacuum cooling were experimentally analysed in this *** temperature of vapour-condenser,-2℃,-35℃,-39℃ and-71℃,and the final pressure in the vacuum chamber,0.3kPa,0.4kPa,0.5kPa and 0.61 kPa,were *** experimental results showed that the cooling rate varies with the temperature of vapour-condenser and the final pressure in the vacuum *** vapour becomes the frost on the surface of vapour-condenser when the initial temperature of vapour-condenser is below0℃,which is helpful to trap water vapour for *** addition,the formation mechanism of frost at the surface of vapour-condenser was analysed in this *** cooling time for vacuum cooling can be reduced when the final pressure in the vacuum chamber varied from 0.4kPa to 0.61 ***,the surface temperature of cooked meat occurred freezing when the final pressure in the vacuum chamber was ***,in order to reduce the cooling time and avoid freezing,the temperature of vapour-condenser should be set around-30℃40℃ and the final pressure in the vacuum chamber can be defined at from0.4kPa to 0.61 kPa.

关键词： Temperature Pressure Vapour-condenser Vacuum cooling

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Research on the Method of Geospatial Information Intelligent Search Based on Search Intention Model

Research on the Method of Geospatial Information Intelligent...

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第四届国际计算机与计算技术在农业中的应用研讨会

作者： Jingbo Liu Jian Wang Bingbo Gao School of Automation University of Electronic Science and Technology of China Beijing Research Center for Information Technology in Agriculture

The paper,focusing on the problem that the overall correlation level of the research result is low in the current geospatial data search system,establishes users' search intention models,researches the intelligent and professional geospatial information search method,and makes use of spatial cognition theory and knowledge engineering methods to make up for the shortcomings of the lack of semantic information in the traditional keyword-based information *** geospatial information of towns and villages spatial planning field involves multitudinous theme and has complex structure and large *** has always been lack of appropriate method to complete the information search and processing *** paper takes geospatial data search in towns and villages spatial planning field for example,constructs the professional knowledge base by knowledge engineering,implements semantic reasoning and establishes users' search intentions model by combining the characteristics of geospatial *** ultimate goal is to understand users' search intentions as far as possible and improve the accuracy of geospatial data search.

关键词： geospatial information search knowledge engineering search intention model

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Analysis of Secretary Proteins in the Genome of the Plant Pathogenic Fungus Botrytis Cinerea

Analysis of Secretary Proteins in the Genome of the Plant Pa...

引用

第四届国际计算机与计算技术在农业中的应用研讨会

作者： Zhang Yue Yang Jing Liu Lin Su Yuan Xu Ling Zhu Youyong Li Chengyun Key Laboratory of Agro-biodiversity and Pest Management of the Education Ministry of China Yunnan Agricultural University

The signal peptides prediction algorithm SignalP v3.0,subcellular protein location prediction algorithm ***.l,potential GPI-anchor sites prediction algorithm big-PI predictor,trans-membrane domains prediction algorithm TMHMM v2.0 and bioinformatics algorithm MEME were used to analyze 16446 protein sequences of Botrytis *** results showed that there were 579 deduced secretary *** these proteins,the minimum and maximum of open read frame were 102 bp and 4848 bps respectively and mean score was 1271 *** signal peptides’ length was concentrated to 16-39 amino acids and the average length was 21.122 of these proteins contain the highly conserved host-targeting-motif RxLx within 100 residues adjacent to the signal peptide cleavage *** to PEDNAT and COG of GenBank database,this motif’s functions include metabolism modification and cell secretion *** blast those putative secretary proteins with RxLx motif in GenBenk and found 47.54%of them have highly conserved homologues in other species,among them 74.1%have putative protein *** means these proteins may be more stable or earlier *** suppose these proteins are candidate participating in the pathogenesis of Botrytis cinerea but we still need more experimental evidence to confirm their definite functions.

关键词： Botrytis cinerea signal peptide secretary protein host-targeting-motif

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Chlorimuronethyl Resistance Selectable Marker Unsuited for the Transformation of Rice Blast Fungus(Magnaporthe Grisea)

Chlorimuronethyl Resistance Selectable Marker Unsuited for t...

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第四届国际计算机与计算技术在农业中的应用研讨会

作者： Chang Qing Yang Jing Liu Lin Su Yuan Li Jinbin Zhu Youyong Li Chengyun Key Laboratory of Agro-biodiversity and Pest Management of the Education Ministry of China Yunnan Agricultural University

Chlorimuronethyl resistance gene is increasingly used as a selectable marker for transformation,especially fungal *** grisea is an important model organism for investigating fungal pathogenicity,and Agrobacterium tumefaciens-mediated transformation(ATMT) is used for functional mutagenesis of the ***,our results showed that rice blast strains collected from infectious rice fields have highly conserved resistance to chlorimuronethyl,even comparable to transformants which carrying chlorimuronethyl resistance genes as selectable marker in laboratory *** results showed that all tested field strains presented the amplified products of the same size as the selectable marker amplified from plasmid carrying chlorimuronethyl *** analysis of PCR products amplified from field strains confirmed that field strains harbored the highly identity homolog of chlorimuronethyl resistance *** search in GenBank suggested that the fragment is presenting in reference genome sequence of 70-15,but it is not a wide-spread gene in other organisms,excepted for Herpetosiphon *** the origin and reason of the conserved chlorimuronethyl resistance gene in field isolates of blast fungus is unclear,the ecological function of the gene is noteworthy.

关键词： Magnaporthe grisea chlorimuronethyl resistance gene selectable marker fungi transformation

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A Metadata Based Agricultural Universal Scientific and Technical Information Fusion and Service Framework

A Metadata Based Agricultural Universal Scientific and Techn...

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第四届国际计算机与计算技术在农业中的应用研讨会

作者： Cui Yunpeng Liu Shihong Sun SuFen Zhang Junfeng Zheng Huaiguo Key Laboratory of Digital Agricultural Early-warning Technology Ministry of Agriculture Agriculture Sci-Tec information institute of Beijing Academy of Agriculture and Forestry Science

The paper introduced a metadata based Agricultural scientific and technical Information fusion and Services *** Agricultural scientific and technical Information dataset core metadata and Services core metadata,the distributed and platform-independent Information fusion can be implemented,based on the information fused resources in base layer of the framework,many applications can be developed,such as mobile communication based mobile Information service,voice text converter based voice information service,smart Q & A application etc.,and the solution is an available and effective solution for the fusion and services of agricultural scientific and technical information resources,because the solution can integrate the data with different format from different data sources,so the solution can be used to construct the data layer of agricultural scientific and technical universal information services.

关键词： Information fusion Metadata Agricultural scientific and technical Information service

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Effects of Different Physical Characteristics on the Compression Molding Quality of Dried Fish Floss

Effects of Different Physical Characteristics on the Compres...

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第四届国际计算机与计算技术在农业中的应用研讨会

作者： Hongmei Xu Li Zong Shengfa Yuan College of Engineering and Technology Huazhong Agricultural University

The compression molding of dried fish floss is of great significance to the development of fish product and the storage and transport of *** this issue,the compression ratio,relaxation ratio and shatter resistance are selected as the evaluation indicators,effects of particle size,moisture content,amount,and processing methods(whether cooked or not) on the compression molding quality of dried fish floss are *** results showed that:1) the moisture content and amount of dried fish floss have a significant impact on the thickness of molding block,and the lower the moisture content is,the larger the thickness of molding block is,the thickness of molding block decreases with the amount of dried fish floss;2) processing methods have great effect on the relaxation ratio of molding block,the relaxation ratio of molding block will increase if the dried fish floss is cooked;3) the amount and moisture content affect the shatter resistance of molding block observably,the greater the amount and moisture content of dried fish floss,the better the shatter resistance of molding block is when the amount and moisture content respectively varies in the range of 3g-5g and 5.13%-23.57%.

关键词： Dried Fish Floss Compression Molding Relaxation Ratio Shatter Resistance Moisture Content Particle Size

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Experimental Study of the Parameters of High Pulsed Electrical Field Pretreatment to Fruits and Vegetables in Vacuum Freeze-Drying

Experimental Study of the Parameters of High Pulsed Electric...

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第四届国际计算机与计算技术在农业中的应用研讨会

作者： Yali Wu Yuming Guo College of Engineering Shanxi Agricultural University

High pulsed electrical field as pre-processing step for fruits and vegetables in the vacuum freeze drying could increase drying rate efficiency and preserve nutritional ingredients in ***,high pulsed electrical field pretreatment has been successfully used to solve practical problems in the vacuum freeze drying,such as energy consumption,high production costs and long drying time *** drying experiments were conducted with apples which were pretreated by high pulsed electrical field,and the results showed that high pulsed electrical field pretreatment could increase the drying rate *** to the range analysis,the optimal parameters of high pulsed electrical field for drying were obtained as follows:pulse strength was 1000V·cm,pulse time was 120 μs,and pulse number was *** using the above optimal conditions,energy consumption per unit of water was reduced by17.74%,freeze drying time was shortened by 22.50%,and productivity per unit area was increased by 28.50%than results of the untreated *** addition,it was found that the most important physical factors of high pulsed electrical field which affected the vacuum freeze drying were the pulse duration,pulse strength and pulse number.

关键词： high pulsed electrical field freeze-drying fruits and vegetables optimization of process parameters

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A Digital Management System of Cow Diseases on Dairy Farm

A Digital Management System of Cow Diseases on Dairy Farm

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第四届国际计算机与计算技术在农业中的应用研讨会

作者： Lin Li Hongbin Wang Yong Yang Jianbin He Jing Dong Honggang Fan School of Animal Husbandry and Veterinary Medicine Shenyang Agricultural University School of anima Medicine 1 Northeast Agricultural University School of Information and Electrical Engineering Shenyang Agricultural University

A digital management system of cow diseases is presented in this paper,which based on standardization disease management *** can manage dairy cow disease from each stage including cow file creation,routine monitoring,disease prevention and *** electronic medical records was set up,which based on medical records include cow basic information and routine monitoring results and disease prevention information and can implement statistical analytic function of disease rate and guide cow *** Unique numbers and integrated medical records information of every cow will lay the foundation for food of animal origin *** system includes four subsystems,cow basic information management subsystem,cow individual health monitoring and evaluation subsystem,cow electronic medical records subsystem and cow disease prevention and control *** the help of system analysis and software design techniques,it is can manage cow disease on dairy farm effectually.

关键词： Digital management cow diseases dairy farm

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Design and Implementation of Crop Potential Model System Based on GIS and Componentware Technology

Design and Implementation of Crop Potential Model System Bas...

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第四届国际计算机与计算技术在农业中的应用研讨会

作者： Hao Zhang Li Ding Guang Zheng Xin Xu Lei Xi Xinming Ma College of Information and Management Science Henan Agricultural University College of Agronomy Henan Agricultural University

Based on SuperMap *** and the empirical models about crop potential output,the paper firstly designed the model system of crop potential output by using componentware method based on distributed computing architecture under network ***,the paper implemented crop potential model components by using componentware ***,with the abstract mechanism of interface,the paper integrated crop potential output models and loosely coupled model components with SuperMap *** results show that the model system as a component container about crop potential output model integrated empirical and mechanism models and provided a dynamic management for crop potential output models and dynamic methods call,which solved the issues of integration and expansion,and the system has the characteristics of wide applicability and good independence,which provides ADM and technical support for the construction of major grain-producing areas,crop production management and potential mining.

关键词： Componentware Crop potential output GIS UML

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