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由于热带特色水果物流系统基础设施不完善、中间环节繁多、物流渠道复杂、物流结点散乱、运作效率低下,导致热带特色水果物流过程中损耗严重,安全事故频发.为此,介绍了海南热带特色水果的种植情况和收获情况等,根据热带特色水果易腐易烂的特征,需要在冷链环境下进入物流.采用RFID技术,初步构建了热带特色水果的低碳物流信息管理系统,实现了对冷链物流环境中的温度等重要因子进行采集和监控,可以实现对冷链物流的指导,提高热带特色水果的物流质量和效率,减少物流中废气废物的排放,使热带特色水果的物流实现低碳化. 相似文献
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基于信息门户的农产品物流信息平台研究 总被引:5,自引:0,他引:5
农产品物流信息化是农业现代化发展的客观要求.为此,分析了我国传统农产品物流信息链模式,提出了基于信息门户(Information Portal,IP)的农产品物流信息平台,对农产品物流信息平台的概念进行了定义;同时,分析了农产品物流信息平台功能结构和运营模式,并提出实施农产品物流平台的建议. 相似文献
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为高效、实时和透明地管理农产品物流运输信息,采用基于元数据设计模式,标准化、开放性、安全性和实用性设计原则,结合物联网技术、北斗/GPS车辆定位技术和地图信息展示技术开发了企业级农产品物流运输订单管理系统。在不影响公司目前业务操作的前提下,对成品物流运输流程进行优化,提升物流配送环节信息传递效率,用户体验大幅提高,最终实现了物流运输精细化管理的目标。 相似文献
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物流信息技术通过对各要素的合理组合与利用,有效把零散数据变为商业智慧,赋予了物流配送新型的生产要素一信息,提高了物流过程的预测和管理能力.将物流信息技术应用于农产品的配送领域,实现对配送过程的跟踪监管,对于保证农产品质量安全、提高农产品流通速度,推进农业现代化进程具有重要意义. 相似文献
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农产品物流信息化建设是提高农产品竞争力的重要举措,通过分析在“互联网+”背景下陕西省农产品物流信息化建设存在的基础设施建设不足、物流信息资源匮乏和物流信息服务水平不高等原因,提出政府应当在信息化建设中的起主导地位、优化农业信息服务体系以及加大人才培养力度等措施。 相似文献
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《Journal of Agricultural Engineering Research》1998,69(3):249-254
A model to represent the discolouration of dried powder of carrots as a function of temperature was developed. Two types of carrots, Asian and European, containing large amount of lycopene and β-carotene, respectively, were tested. The dried powder was stored under an atmosphere with O2and at three different temperatures, 5,20 and 35°C. The surface colour of the powder was monitored during storage by a Hunter colour ratioa/b. In the proposed model, the rate of oxidation was assumed to be represented by the product of the fraction of concentration of oxidized pigment at arbitrary time and a specific rate of oxidation of pigment. The rate parameters in the proposed model were calculated by fitting the experimental data with smooth curves by trial and error at the end of the induction period but before discolouration took place. The frequency constant and activation energy, expressing the temperature dependence of the rate parameters, were expressed by the Arrhenius relation. The simulation results of a Hunter colour ratioa/bof dried powder at 25°C showed good agreement with the experimental data, suggesting that the proposed model was effective for the prediction of discolouration of dried powder of both types of carrot. The use of the induction period in the manner described may enable the shelf life of dried powder to be predicted. 相似文献
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感官检验棉花的品级,这是农村常见的一种检测手段.它的一个主要特点就是存在不确定性.这是由于检验员的品级检验水平存在一定的差异,其中有很多因素制约着检验的结果.文章对影响感官检验结果的因素进行了系统的分析. 相似文献
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The fractional outflow rate of water from the rumen, measured as the rate of disappearance of the chromium complex of ethylenediamine tetra-acetic acid, was related to a number of dietary factors. A multiple regression equation was derived which expressed fractional outflow rate as a function of the intakes of dry matter, ash, acid-detergent fibre and crude protein.The data analysed consisted of 243 observations for sheep on 59 diets, including forage, concentrate and mixed diets. The ranges covered by the data were: fractional outflow rate 0.7–3.6 day?1; dry matter intake 560–1400g/day; ash 4–30%, acid-detergent fibre 7–41%, crude protein 5–26 % of dry matter; there were no observations for sheep of less than 34 kg liveweight.The equation accounted for 56·3 % of the total variance. Between-sheep variance could not be calculated for the whole of the data but was undoubtedly substantial since, for a sixth of the data, it was known to account for 38 % of the total variance. 相似文献
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从灾害经济学的角度探讨了城镇供水优化调度的必要性和可能性,认为在缺水不可避免的情况下,对供水进行优化调度可以减小缺水带来的损失,产生较好的减灾效益,特别是可以大大减小严重干旱的灾害效应。并根据水资源的特性,提出了缺水损失的计算模式以及优化调度的原则和方法。 相似文献