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2月22日,2008年全区农机化工作会议在南宁邕州饭店召开,自治区副主席陈章良出席会议并讲话。他指出全区农村农业工作会议刚结束,就立即召开全区农机化工作会议,是自治区农机化局重视传达学习,贯彻区农村农业工作会议精神的表现,陈章良副主席强调2008年广西农机化要着重抓好几方面工作: 相似文献
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2007年12月24日,全国农业工作会议农机专业会在京召开。这次会议的主要任务是:认真贯彻党的十七大和中央农村工作会议精神,深入贯彻落实科学发展观,分析当前农机化发展形势,总结交流2007年农机化工作成效,研究部署2008年工作思路和重点任务。农业部张宝文副部长出席会议并发表了题为《推动农业机械化又好又快发展, 相似文献
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2月22日,2008年全区农机化工作会议在南宁邕州饭店召开,自治区副主席陈章良出席会议并讲话。他指出全区农村农业工作会议刚结束,就立即召开全区农机化工作会议,是自治区农机化局重视传达学习,贯彻区农村农业工作会议精神的表现,陈章良副主席强调2008年广西农机化要着重抓好几方面工作:一、重点抓好甘蔗生产机械化工作,尤其是对甘蔗收获机械的开发研制。陈章良副主席指出,广西是全国最大的蔗糖生产地区,中国60%的蔗 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