Determining Environmental Impacts for Sensitive Species: Using Iconic Species as Bioindicators for Management and Policy

Environmental assessment of impacts, management, and policy are important aspects of protection of human health and the environment. Assessing the impacts of human activities requires selection of bioindicator species that can be used to assess, manage, and develop public policies that ensure ecosystem integrity, and therefore sustainability of social, cultural, and economic systems. With the use of Chinook Salmon (Oncorhynchus tshawytscha), Pacific Cod (Gadusmacrocephalus), Mallard (Anas platyrhynchos), and Red Knot (Calidris canutus rufa), we explore assessment and measurement endpoints, and their relationship to management and development of public policy. This combination of fish and birds provides a diversity of life histories, ecosystem roles, human values, and resource use to explore their use as bioindicators and endpoints. It also allows examination of 1) conservation and protection of species and biodiversity, 2) protection of ecosystems, 3) provision of goods and services, and 4) societal well-being.

冷热通道气流遏制对数据中心温度和效率的影响(上)

冷热通道气流遏制均可显著提高传统数据中心制冷系统的可预测性和效率。尽管两种方式均可消除冷、热气流的混合,但在实际的实施和运营中两者仍存在差别,而且这种差别将对作业环境、PUE和节能冷却模式运行的时间产生显著的影响。采用热通道气流遏制系统的策略会比采用冷通道气流遏制的策略多取得43%的节能效果,由此在年度PUE上会有15%的改善。本文将对这两种策略进行研究,并着重阐述为什么热通道气流遇制系统对于新建数据中心是最佳实践。

冷热通道气流遏制对数据中心温度和效率的影响(下)

冷热通道气流遏制均可显著提高传统数据中心制冷系统的可预测性和效率。尽管两种方式均可消除冷、热气流的混合,但在实际的实施和运营中两者仍存在差别、而且这种差别将对作业环境、PUE和节能冷却模式运行的时间产生显著的影响。采用热通道气流遏制系统的策略会比采用冷通道气流遇制的策略多取得43%的节能效果,由此在年度PUE上会有15%的改善。本文将对这两种策略进行研究,并着重阐述为什么热通道气流遏制系统对于新建数据中心是最佳实践。