Results 21 to 30 of about 3,685 (215)
Drivers of bat researchers’ intent to adopt field hygiene practices
Conservation Biology, EarlyView.Abstract Infectious disease is a growing threat to wildlife, with zoonotic transmission most likely at the human–wildlife interface. One underappreciated activity at this interface is fieldwork with wild animals, but associated risks can be mitigated through field hygiene (FH) practices, such as using personal protective equipment and other appropriate
Joanna L. Coleman +6 more
wiley +1 more source
, 2007 2004年12月-2005年5月武汉市月湖水生植被重建过程中,对浮游植物进行逐月调查.结果表明,在营养盐浓度较高的条件下,浮游植物仍保持较低的生物量和密度,浮游植物的生长与温度保持一定的相关性,但与湖水营养盐浓度并不存在相关关系.菹草和伊乐藻能使水体的透明度保持较高的状态.浮游植物主要由隐藻和硅藻组成,能形成水华的一些常见种类并未随温度升高而出现,可能与这两种沉水植物的存在改变了浮游植物的群落结构有关.因此 ...
吴振斌 +6 more
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Evaluating synthetic substitutes to reduce illegal harvesting and support species recovery
Conservation Biology, EarlyView.Abstract Providing synthetic substitutes is a widely promoted strategy to shift consumer demand away from wildlife products derived from threatened species. Yet, there is little evidence on whether product substitution prevents illegal or unsustainable harvesting and contributes to the recovery of threatened populations.
Aditya Shekhar Malgaonkar +17 more
wiley +1 more source
Powerful representation of the poor? German welfare associations' narrative advocacy during COVID‐19
Policy Studies Journal, EarlyView.Abstract The COVID‐19 pandemic sparked unprecedented experimentation in the German social assistance system, leading to changes previously considered impracticable by policymakers. This included a sanctions moratorium, easier access to benefits, and temporary cash transfers, all of which were advocated by welfare associations—key organized interests ...
Christopher Smith Ochoa
wiley +1 more source
Design and Implementation of Contract Management Information System for an Enterprise [PDF]
, 2016 随着我国企业信息化水平的提高，我国的管理软件的现状可说是机遇与挑战并存，巨大的市场需求给信息发展技术提供了机遇，同时相对薄弱的信息基础，与国外管理水平进一步拉大了水平差距。传统的合同管理，多采用手工的形式，繁琐且容易出差错，随着电子技术的发展，合同管理开始进入了信息化管理时代，从而做到了准确、快捷。现在企业管理的重要组成部分是合同管理，企业的合同管理应该永远全面的管理。合同管理制度，从而成为企业信息化建设，合同的审批流程化，查询和信息技术，标准支持合同相关业务的监督管理的重要组成部分 ...
杨璐
core
Emotion and the Advocacy Coalition Framework: An Affective Dynamics Perspective
Policy Studies Journal, EarlyView.ABSTRACT Despite extensive evidence that emotion and cognition are deeply intertwined, the Advocacy Coalition Framework (ACF) lacks an analytically independent emotional mechanism in its causal architecture—an omission that may be particularly consequential in policy subsystems structured around morally charged, identity‐laden policy disputes.
Moshe Maor
wiley +1 more source
Shiyou jixie, 2014 鉴于传统修井设备存在环境污染大，功率利用率低,维护和保养费用高等诸多问题，研制了TJ12/70B型双动力轮式通井机。该轮式通井机采用双动力技术，利用油田电网驱动高压调速电动机驱动绞车实现通井机修井作业，当电网断电或高压电机发生故障及特大载荷时，可以安全切换到柴油机驱动绞车进行修井作业，实现了高压调速电动机和柴油发动机双驱动的型式。开关磁阻电控系统与主机一体化安装，有利于控制作业成本、降低噪声及提高作业的可靠性。试验及现场应用结果表明，该轮式通井机电网驱动作业工况比柴油机驱动工况年碳排放减少984.68 ...
朱文琪 +4 more
doaj
Paleoenvironment and East Asian summer monsoon rainfall evolution in southern Taiwan during last deglaciation and early Holocene [PDF]
, 2017 末次冰消期一直以来是古气候研究的热点，这一时期地球气候系统发生了一系列剧烈的快速气候变化事件（H1冰阶-H1，Bølling-Allerød暖期-BA和新仙女木事件-YD），研究这些气候事件有助于我们认识全球气候系统的演变及其驱动机制。东亚季风是全球气候系统的重要一环，在全球和区域水汽循环中都扮演着重要作用。东亚季风的盛衰影响着东亚地区降水分布与生态环境演化，进而影响着季风区社会经济发展和文明演替。因此研究东亚季风的演化还具有重大的现实意义。 台湾位于东亚季风的前缘区 ...
丁晓东
core
Resource Substitution: Local Governments' Issue Attention and Policy Reinvention
Policy Studies Journal, EarlyView.ABSTRACT Research on policy reinvention, where a government modifies rather than replicates policy innovations introduced by other governments, has progressed significantly, but how it is influenced by the government's issue attention has not been thoroughly examined.
Yingxin Zhang, Yixue Yao, Kaifeng Yang
wiley +1 more source
Gaoya dianqi, 2017 为克服现有快速接地开关受环境影响大等缺点,设计研究了一套电机直驱式操动机构。电机直驱式操动机构包括机械传动部分、电机主电路部分、用于控制的数字信号处理器（DSP）极其外围电路。电机主电路部分包括整流电路、电容储能电路、逆变电路。DSP采用TMS320F28335,其外围电路包括IGBT功率驱动板、电流采集电路、速度和位置采集电路。在MATLAB/Simulink中搭建了整个系统的控制算法,仿真结果表明设计的电机直驱式操动机构能满足FES合闸操作的要求,同时配置有该电机直驱操动机构的FES进行了特性试验 ...
白世军 +6 more
doaj