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角蛋白酶的结构、功能及应用 被引量:1
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作者 朱星潮 李其昌 +2 位作者 郭君慧 祁梅芳 谢浩 《生命的化学》 CAS 2023年第12期1818-1825,共8页
角蛋白是广泛存在于羽毛及毛发中的难溶性蛋白质。角蛋白酶可以催化角蛋白的降解,在畜牧、皮革加工、医疗等领域中具有较大的应用价值与潜力。近年来,研究人员对角蛋白酶的来源、分类、结构、功能优化等方面进行了大量的研究,并取得了... 角蛋白是广泛存在于羽毛及毛发中的难溶性蛋白质。角蛋白酶可以催化角蛋白的降解,在畜牧、皮革加工、医疗等领域中具有较大的应用价值与潜力。近年来,研究人员对角蛋白酶的来源、分类、结构、功能优化等方面进行了大量的研究,并取得了很多成果,为角蛋白酶的商业化应用提供了很好的基础。本文综述了角蛋白酶结构、功能、应用等方面的研究进展,并提出了今后的研究方向。 展开更多
关键词 角蛋白 角蛋白酶 结构/功能优化
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Eco-economic Background of Hilly-Gullied Loess Region and Optimized Eco-productive Paradigm of Small Watersheds 被引量:3
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作者 孔正红 张新时 朱桂杰 《Acta Botanica Sinica》 CSCD 2003年第10期1174-1185,共12页
A thorough analysis on its natural environment as well as social economic status of the hilly-gullied loess region is presented. A small watershed, the dominant landscape unit of the region, has been singled out for f... A thorough analysis on its natural environment as well as social economic status of the hilly-gullied loess region is presented. A small watershed, the dominant landscape unit of the region, has been singled out for further and specific study on landscape pattern and function, its social and economic distinctions. The authors proposed several principles based on its eco-economic background study, which includes water balance and efficient use principle, co-development of grass and agro-forestry principle, location optimization principle. Integrated with detailed analysis of a small watershed, an eco-productive paradigm for the loess land's development based on a small watershed scale was worked out. It consists of circle pattern with villages at core for high efficient agriculture production, hierarchical pattern along the slope for eco-economic development, point-axis pattern for commodity production and circulation in small watersheds and core-margin pattern for exchanges among watersheds. 展开更多
关键词 hilly-gullied loess region small watershed landscape pattern and function location optimization
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System analysis and path choice for modern agricultural development:a case study of Suzhou
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作者 Zhai Rongxin Liu Yansui 《Ecological Economy》 2009年第2期152-159,共8页
From the view of system theory, modern agriculture in a region embodies elements conformity, structure optimization, multi-functionality and sustainable development. This paper first expounds on the relationship among... From the view of system theory, modern agriculture in a region embodies elements conformity, structure optimization, multi-functionality and sustainable development. This paper first expounds on the relationship among agricultural elements, structure, function and development theoretically, compartmentalizes agriculture types based on human-land elements matching, and depicts the development path of agricultural multi-functionality. it shows that the matching of human-land elements is a key to agricultural types, and the multi-functionality is an indication of agricultural development stages. At last, as a case study of Suzhou in eastern coastal area, the paper analyzes the evolvement situation and developing mechanism and some typical models of modern agriculture which suit to agriculture system evolvement. The results .show that in Suzhou the agriculture productivity, has improved greatly; And along with the agriculture structure optimizing, agriculture function has translated from "production " to "non- production and production ". With simulation of agricultural trend in Suzhou, it is .found that Suzhou has a LP- dependence (labor productivity) on agricultural element, so Suzhou will has much more potential in land productivity. Based on the above analysis on agricultural system, some typical patterns on modern agriculture in Suzhou are brought up, such as export-oriented agriculture, enterprises-leading agriculture, science and technology, parks agriculture, stereoseopic agriculture, and tourism and sightseeing agriculture. 展开更多
关键词 Modern agriculture Agricultural .ststem PATH SUZHOU
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