共查询到20条相似文献，搜索用时 62 毫秒
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我国农机工业在国家对农业的重视下走出了有中国特色的农业机械化发展道路,本文从以技术创新促进、绿色设计带动、提高标准化在农机研制及生产过程中的作用等角度提出促进农机企业的可持续发展的思路对对策。 相似文献
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在分析我国农机制造业发展现状和存在的问题的基础上,指出我国农机制造业的可持续发展最终要靠技术创新来实现,并提出了促进我国农机制造业技术创新的对策. 相似文献
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由于农机产品产量大、使用面广,又与水、空气、地表及土壤有着密不可分的关系,所以在其设计过程中必须考虑资源问题及环境属性.绿色设计以节约能源和保护环境为设计理念,农机企业开展产品的绿色设计是企业适应可持续发展社会的必然要求.为此,论述了绿色设计的概念、内容和方法;分析了农机产品绿色设计的内涵;指出了绿色设计是农机产品可持续发展的根本保障,是一项社会化的系统工程. 相似文献
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于金伟 《农业装备与车辆工程》2007,(7):30-31
绿色设计以节约能源和保护环境为设计理念,因此,农机企业开展产品的绿色设计是企业适应可持续发展社会的必然,而可拆卸性设计是产品绿色设计的主要内容之一。本文介绍了可拆卸性设计的内涵、特点和方法,阐述了农业机械产品可拆卸性设计的关键技术和实施途径,并指出今后要注重农业机械的可拆卸性设计。 相似文献
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浅谈绿色加工技术在汽车制造业的应用 总被引：1，自引：0，他引：1
唐梦柔 《农业装备与车辆工程》2011,(4):43-44,58
绿色制造是企业以及人类社会可持续发展的根本途径,对汽车制造企业绿色加工技术进行了分析,介绍了我国汽车制造企业实施绿色加工的现状及面临的挑战。 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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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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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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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