共查询到20条相似文献,搜索用时 171 毫秒
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那一天,我不得已上路,为不安分的心,为自尊的生存,为自我的证明,路上的辛酸已融进我的眼睛,心灵的困境已化作我的坚定。在路上,用我心灵的呼声;在路上,只为伴着我的人;在路上,是我生命的远行;在路上,只为温暖我的人,温暖我的人。在路上,用我心灵的呼声;在路上,只为伴着我的人;在路上,是我生命的远行;在路上,只为温暖我的人,温暖,我的人。 相似文献
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毒死蜱在豆角、辣椒和土壤中的残留动态 总被引:7,自引:0,他引:7
采用GC测定方法,对毒死蜱在广州和海口两地的豆角、辣椒及土壤中的残留动态进行了评价。两年的试验结果表明,毒死蜱在广州豆角中的半衰期为4.30d,在豆角土壤中的半衰期为6.02d,在辣椒中的半衰期为3.99d,在辣椒土壤中的半衰期为7.2ld;毒死蜱在海口豆角中的半衰期为4.45d,在豆角土壤中的半衰期为6.34d,在辣椒中的半衰期为4.78d,在辣椒土壤中的半衰期为8.2ld。毒死蜱在正常使用剂量下,有效成分在两地豆角、辣椒和土壤中的最终残留量均低于0.5mg/kg。 相似文献
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以腐植酸为原料合成了阳离子生物质水处理剂,并对其杀菌灭藻、阻垢、缓蚀性能进行了评价。结果表明,阳离子生物质的杀菌灭藻性能得到很大提高,在药剂质量浓度为20~30mg/L时,可与癸甲氯铵的杀菌灭藻性能相媲美,同时阻垢、缓蚀性能也得到较大幅度的改善。 相似文献
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Campbell BI La Bounty PM Roberts M 《Journal of the International Society of Sports Nutrition》2004,1(2):35-38
Arginine is a conditionally essential amino acid that is involved in protein synthesis, the detoxification of ammonia, and
its conversion to glucose as well as being catabolized to produce energy. In addition to these physiological functions, arginine
has been purported to have ergogenic potential. Athletes have taken arginine for three main reasons: 1) its role in the secretion
of endogenous growth hormone; 2) its involvement in the synthesis of creatine; 3) its role in augmenting nitric oxide. These
aspects of arginine supplementation will be discussed as well as a review of clinical investigations involving exercise performance
and arginine ingestion. 相似文献
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介绍了以煤及其延伸产品为原材料,通过机械粉碎、风选分级、表面处理、真空包装等流程生产改性煤系低密度填料的工业化方法,并简述了产品在塑料行业中的实际应用,简要展望了其在橡胶行业的应用前景。 相似文献
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石墨烯及复合材料具有比表面积大、电导率高、导热性能和力学性能良好等优点,在电极材料、传感器、储氢材料等领域具有广泛的应用。但以高碳含量的天然资源煤为前体制备煤基石墨烯及复合材料达到煤炭清洁高效利用的研究目前报道有限,尤其是将其作为电极材料应用到储能领域的研究较少。本文重点总结了以不同煤质及衍生物为原料构建不同形貌和结构的煤基石墨烯及复合材料的方法以及存在的问题,详细介绍了煤基石墨烯及复合材料在储能领域,尤其是超级电容器、锂离子电池及钠离子电池领域的应用研究现状,最后提出了当前煤基石墨烯及复合材料的主要研究方向。该综述旨在为煤基新型石墨烯及复合材料的制备开发以及在储能领域的应用提供一定的思路。 相似文献
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介绍模糊控制的概念,给出模糊控制的特点,总结模糊控制在生产生活中的应用现状,最后提出模糊控制未来的发展趋势。 相似文献
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Grace George K. K. Bhat Indira A. S. Murti D. P. Sen 《European Journal of Lipid Science and Technology》1986,88(6):238-243
Walnut (Juglans regia) kernel and its oil were found to reduce serum cholesterol, triglycerides, phospholipids and total lipids in cholesterol bilesalt stressed hypercholesterolaemic rats. Kernel was as effective as its oil (unrefined or refined); thus the efficacy of kernel was due to its oil content having about 70 % polyunsaturated fatty acids. Both unrefined and refined oils having different contents of unsaponifiable matter and sterols behaved in a similar way indicating that unsaponifiable matter and sterol contents of oil were not responsible for their efficacy. There was no difference in faecal cholesterol in animals given vanaspati, walnut kernel or its oil; thus hypolipidaemic effect observed with walnut kernel or its oil could not be attributed to any differences in faecal cholesterol. Serum SGO-T activity of animals of groups given vanaspati, walnut kernel, walnut oil and safflower oil was similar and normal. The blend of vanaspati and walnut oil (1:1) was as effective as walnut kernel and its oil. The study brings to light special value of walnut kernel as a food material in reducing serum lipid constituents. 相似文献
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陶瓷生产袋式除尘器参数的选择与设计 总被引:2,自引:0,他引:2
介绍了袋式除尘器的原理、特点及在陶瓷行业的应用.分析了袋式除尘器的主要设计参数对其除尘效率和安全可靠运行的影响,提出了袋式除尘器除尘主要参数的选择和设计方法,包括:滤袋材料结构、过滤速度、过滤面积、清灰方式等.针对目前一些陶瓷厂袋式除尘器的运行状态不良、除尘效率不佳的现状,指出了通过全面分析袋式除尘器各参数相互联系和相互作用的关系,优化组合设计参数,使除尘器的运行状态达到最佳的解决办法.为陶瓷企业袋式除尘器的设计、使用和维护提供了依据和参考. 相似文献