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气源流量对所制备Me-DLC膜性能的影响
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作者 聂君兰 谷坤明 +2 位作者 汤皎宁 麦达宇 樊璠 《稀有金属与硬质合金》 CAS CSCD 2008年第1期34-37,共4页
介绍了一种新型的DLC膜制备方法——ECR(电子回旋共振)微波等离子体气相沉积结合磁控溅射的方法。采用该法通过溅射石墨靶和金属钛靶在不锈钢基底上制备了具有Ti/TiN/TiN(N,C)中间层结构的碳薄膜。研究了制备时不同气源流量对薄膜的表... 介绍了一种新型的DLC膜制备方法——ECR(电子回旋共振)微波等离子体气相沉积结合磁控溅射的方法。采用该法通过溅射石墨靶和金属钛靶在不锈钢基底上制备了具有Ti/TiN/TiN(N,C)中间层结构的碳薄膜。研究了制备时不同气源流量对薄膜的表面形貌、硬度、摩擦磨损性能、表面能等的影响。 展开更多
关键词 Me-DLC膜 ECR溅射镀膜 磁控溅射 气源流量
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Eutrophication of Aquatic Ecosystems: A Viewpoint on the Environmental Impact of Climate Change
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作者 Karim Morsy Amr Morsy +1 位作者 Mohamed Morsy Hoda Thakeb 《Journal of Environmental Science and Engineering(B)》 2017年第10期506-514,共9页
Environmental concerns associated with nutrient-oriented eutrophication phenomenon have become a serious issue and a major cause of water quality deficiency nowadays. This necessitated eutrophication to occupy a front... Environmental concerns associated with nutrient-oriented eutrophication phenomenon have become a serious issue and a major cause of water quality deficiency nowadays. This necessitated eutrophication to occupy a front seat in research accompanied with climate change. Climate change has revealed to be a key player and a main contributor in the occurrence of such phenomenon. This paper discusses the ever-growing concern about eutrophication as a cause of climate change. Climate change affects storms intensity, changing the precipitation regime and increasing temperature. These effects increase the nutrient loading diffusion and cause excessive nutrients accompanied with storm water runoff, domestic wastewaters, and agricultural discharges to pour into water bodies. Eutrophication conversely contributes in the global wanning by releasing greenhouse gases from deoxygenated waters and sediments. Some control and mitigation measures are needed to fight climate change and achieve desired water quality goals. These measures include mitigation of climate change causes, enhancement of natural ecohydrological processes, application of proper integrated water resource management and participation of communities and governments. 展开更多
关键词 EUTROPHICATION climate change aquatic ecosystems ecohydrological approach.
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