共查询到20条相似文献,搜索用时 93 毫秒
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实践教学是高职院校培养"高素质、技能型、应用型、创新性"人才的重要手段,培训基地是实践教学的重要支撑平台。文章从专业体系产教对接、个性化培养模式、课程体系构建与教学资源建设、校企合作与教学环境建设、师资队伍与科技服务建设、创新发展等方面阐述如何着力打造独特的专业品牌,提高学校的核心竞争力、职业教育吸引力以及对产业发展的推动力。 相似文献
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农业机械化是农业现代化的重要标志,是改善农民生产生活条件,提高农业劳动生产率的重要措施;是缩小城乡差别,提高农业和农村经济水平的重要条件;是提高农业综合生产能力的重要内容。开发和推广应用先进、高效、适用、节能型农业机械,组织好农机社会化服务,提高农业机械使用与管理水平,对建设社会主义新农村、发展现代化农业和全面建设小康社会具有重要作用。 相似文献
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建设社会主义新农村,农业机械化起着基础性、主导性和决定性作用。农业机械化是农业生产发展的基础,它取代了人力畜力,为农村基础设施建设与村庄环境改善打下了坚实的基础。然而,农机安全生产工作是新农村建设中不容忽视的问题。从长远看,安全生产是农业机械化可持续发展的重要支撑,是促进农民增收、改善农民生产生活条件的重要保证。 相似文献
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从四个方面充分论证了农村发展沼气是社会主义新农村建设的重要内容之一。阐述了在做好沼气建设的同时,在服务管理上要做到的统一建档、统一建设、统一督查、统一服务,保证农村沼气建设快速、稳步发展。 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