Results 11 to 20 of about 349,097 (165)
Considering science needs to deliver actionable science
Conservation Biology, Volume 37, Issue 1, February 2023., 2023 Abstract Conservation practitioners, natural resource managers, and environmental stewards often seek out scientific contributions to inform decision‐making. This body of science only becomes actionable when motivated by decision makers considering alternative courses of action.
Gustavo A. Bisbal, Mitchell J. Eaton
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Crisis management in practice: a dynamic process intertwined with daily work performance
Disasters, Volume 46, Issue 3, Page 720-741, July 2022., 2022 This paper explores how a social services unit in Sweden coped with the large influx of unaccompanied children during the refugee situation in 2015. Crisis management is approached using social practice theory to examine how everyday work practices and their constituent resources informed personnel's management of the chaotic circumstances.
Olof Oscarsson
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Review of Policy Research, Volume 39, Issue 3, Page 353-378, May 2022., 2022 Abstract How can agencies that have operational activities as a primary focus improve the procurement and transition of innovative technologies, particularly from the private sector? This study seeks to inform scholars and public‐sector managers about organizational design for innovation and technology acceleration using a systems approach. It examines
Patrick S. Roberts, Jon Schmid
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Policy &Internet, Volume 13, Issue 2, Page 209-232, June 2021., 2021 Are people more likely to become more politically active through social media when they observe that their friends are active? Previous research has shown that an individual's likelihood of engaging politically is influenced by observations of how friends act through social media, but relatively little is known about how such social influence through ...
Hanna Bäck +2 more
wiley +1 more source
, 2021 本实用新型属于轴承装配领域，具体地说是一种基于轴固定的轴承自动压装机组，轴承自动压装机组包括框架、安装在框架底座上的支撑台、安装于框架上的升降机构、安装于升降机构上的夹紧机构和压装机构，操作人员放好轴与轴承并启动设备后，升降机构下降，夹紧机构夹紧轴，由压装机构进行轴承内圈压装，之后夹紧机构松开轴，由压装机构进行轴承外圈压装。本实用新型实现轴承的自动压装，可保证轴承内圈与外圈同时压装到位，既减轻了操作者的劳动强度 ...
荣胜波 +5 more
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Gaoya dianqi, 2022 为提高真空断路器分合闸性能和智能化操作水平，提出了适用于真空断路器电机操动机构的RBF-PID控制方法，结合有限转角永磁无刷直流驱动电机动态数学模型，分析了驱动电机转速响应特性和运动过程可控性，构建了电机操动机构神经网络控制方程，对PID控制参数进行优化整定，分别计算分析常规PID和RBF-PID控制方法作用下真空断路器操作速度的跟踪特性。研制了电机操动机构速度控制系统，开展了真空断路器电机操动机构速度跟踪特性实验，结果表明，采用RBF-PID控制方法可以有效降低速度跟踪误差 ...
史可鉴 +5 more
doaj
Gaoya dianqi, 2020 为了抑制断路器合闸操作过程中的触头过冲与反弹现象,改善电机操动机构输出特性,文中通过分析电机操动机构断路器触头合闸运动过程,计算得到断路器动触头行程与驱动电机负载转矩之间数学关系,利用分段控制策略对电机操动机构驱动电机输出转矩进行调节,实现触头过冲与反弹的有效抑制。研制以数字信号处理器（DSP）为核心的控制装置,开展126 kV真空断路器电机操动机构合闸操作实验,对实验过程中的触头行程多组数据进行对比分析。结果表明:驱动电机在转动0°～10°,10°～36°,36°～64°角度时分别采用调制占空比1,0.
李少华 +6 more
doaj
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Photocatalysis has emerged as a promising approach for solar energy conversion and environmental remediation. However, its practical implementation is still hindered by limited charge‐separation efficiency, slow surface reaction kinetics, and insufficient catalyst stability.
Mengting Zhang +5 more
wiley +1 more source
Gaoya dianqi, 2022 操动机构是高压断路器的核心元件，其性能优劣显著影响着高压断路器分合特性。然而断路器故障时有发生，其中又以机械故障类型最为常见。因此需要提前发现潜伏性机械故障，进一步提高断路器的可靠性。针对这一问题，文中以ZN98型真空断路器弹簧操动机构为研究对象，采用Adams动力学仿真软件，建立了ZN98断路器弹簧操动机构的机械动力学仿真模型。仿真分析了操动机构各零部件运动情况，对断路器合闸与分闸过程分别进行了分析。将仿真得到的机械动力学特性作为操动机构正常工况的参照 ...
林婧 +7 more
doaj
Ten rules for using evidence to guide ecosystem restoration
Journal of Applied Ecology, Volume 63, Issue 9, September 2026.These 10 rules provide a guidance framework to put into action the best available evidence, ensuring that restoration benefits people and nature. We highlight the importance of knowledge brokering systems in this process, effectively informed and empowered to fulfil their emerging role across existing institutions and new ones dedicated to Science ...
Rafael B. Chaves +12 more
wiley +1 more source