Results 41 to 50 of about 20,582 (174)
Conservation Biology, EarlyView.Abstract The design of experiments to investigate the combined effects of multiple stressors requires exposing target organisms to multiple combinations of stressor doses. Concurrent manipulation of stressors is often infeasible with wildlife, but long‐lasting health effects allow individual health to be used as an integrator of prior stressor exposure.
Enrico Pirotta +24 more
wiley +1 more source
Guangtongxin yanjiu, 1984 本文阐述了制作光纤预制棒MCVD工艺石英管管径在线测量装置的测量原理;在线测量的特殊问题;信号处理方法和测量误差分析。对控制系统进行了分析,论证了控制系统的控制方案。最后介绍计算机DDC系统的接口和控制程序。系统达到的控制指标<±0.5mm。
陈建妫, 黄国强
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Learning Styles, Engagement and Anxiety in AI‐Mediated Writing: A Multimodal Feedback Study
International Journal of Applied Linguistics, EarlyView.ABSTRACT Artificial intelligence (AI) tools now permeate English academic writing. However, evidence on how feedback modalities align with student differences and with psychological mechanisms remains limited. Prior work often reduced learning styles to simple matches with delivery modes and treated learning engagement and writing anxiety as peripheral.
Yi Ren +3 more
wiley +1 more source
Shiyou jixie, 2012 电磁波随钻测量技术是气体、泡沫等非液相钻井的重要测量技术手段。以CEM-1型MWD系统为基础，介绍了系统的构成和工作原理，分析说明了该测量系统的井下发射机系统、非对称偶极子钻杆天线模型、地面接收系统等关键技术，重点分析了低频电磁衰减规律。将该系统在大牛地气田D66-129井进行现场应用，应用结果表明，CEM-1型电磁波随钻测量系统能在钻井液钻井中的循环、起钻和下钻过程中测量和传输数据，并且不受钻井液性质的影响，在电阻率大于4 Ω·m的地层传输深度可达3 081 m，工作时间约216 h ...
刘科满, 王立双, 宋朝辉
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Genomic responses to increased temperature and pollinator selection in Brassica rapa L.
New Phytologist, EarlyView.Summary Rapid environmental change reshapes both abiotic stress and biotic interactions, yet it remains unclear how these combined forces structure plants' genomic adaptation. In particular, the joint influence of temperature and pollinator identity, two ecological axes undergoing simultaneous global shifts, has rarely been quantified at genomic ...
Yanqian Ding, Florian P. Schiestl
wiley +1 more source
Gaoya dianqi, 2017 高压直流输电系统直流侧谐波电压的测量对于直流侧滤波器的设计和继电保护设备的配置具有重要意义。为此,文中以±1 100 kV直流输电系统为例,在分析其直流侧谐波电压的产生原因和谐波的特性的基础之上,研究了特高压直流输电系统直流侧谐波电压的测量方法,构建了一套直流侧谐波电压测量系统。同时,在实验室条件下,搭建了该测量系统的测试平台,对它的测量准确度和频率特性进行了验证,并研究了一套完整的数据处理算法。测试结果表明,配合该数据处理算法,直流侧谐波电压测量系统可以对501 200 ...
汪本进 +5 more
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The Research on Multi-Sensors Calibration of Mobile Mapping Systems [PDF]
, 2014 人们从外界获取的信息绝大部分来源于视觉。人们通过眼睛将获取的信息传入到大脑，再由大脑对其进行相应的处理与分析。随着传感器与计算机技术的迅速发展，计算机视觉逐渐实现了替代人眼与大脑实现对周围环境的简单识别与理解。计算机视觉的研究目标是让计算机能像人那样通过视觉观察和理解世界，这不仅要求计算机能够感知三维环境中物体的几何信息（物体的形状、位置、姿态等），还需要对它们进行存储、描述、识别与理解。相比于直接在三维环境中通过各种机械量测工具、测角和测距设备等实现三维环境信息的描述、存储等 ...
李迪龙
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
基于CORBA架构和LabVIEW的分布式电能质量在线监测系统
Gaoya dianqi, 2006 提出了一种基于CORBA架构和LabVIEW的分布式电能质量在线监测系统实现的框架结构来实现对电能质量的指标测量和监控。监测系统由数字测量仪器组成实现数据采集、分析处理、诊断和报警等功能。数字测量仪器采用虚拟仪器技术即LabVIEW软件开发实现硬件测量功能,在网络通信中采用CORBA架构技术实现异构环境下中心控制站与各个监测仪间的远程访问和控制。系统的仿真研究和现场测试均表明该系统能够基本实现电能质量各项指标的监测和分析功能。
张霖, 关根志, 兰国良, 吉磊
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