Results 1 to 10 of about 2,313 (106)
Bayesian Time‐Series Models in Single Case Experimental Designs: A Tutorial for Trauma Researchers
Abstract Single‐case experimental designs (SCEDs) involve obtaining repeated measures from one or a few participants before, during, and, sometimes, after treatment implementation. Because they are cost‐, time‐, and resource‐efficient and can provide robust causal evidence for more large‐scale research, SCEDs are gaining popularity in trauma treatment ...
Prathiba Natesan Batley +2 more
wiley +1 more source
全链路仿真常用于验证柔性直流换流阀阀控系统全部板卡接入时的功能和性能。文中基于全链路仿真实验结构分析,提出了一种全链路仿真实验的优化方法,在满足阀控动态性能实验要求的基础上,降低了仿真系统的复杂度。分析全链路仿真系统结构,提出仿真实验结构优化方案;对比实际换流阀及全链路仿真试验延时,提出仿真实验延时优化方法;最后,搭建工程实验系统进行验证。实验结果显示,该优化方法具有实验回路复杂度低和链路延时小的优点,可满足阀控功能性测试和动态性能测试的需要。
蒋妮娜 +4 more
doaj
目的 本国际临床指南由欧洲残疾儿童学会(the European Academy of Childhood Disability,EACD)牵头制定,旨在解决发育性协调障碍(developmental coordination disorder,DCD)的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题,通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础,以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类,最终转化为指南建议。并由国际 ...
Jing Hua +6 more
wiley +1 more source
基于集中式与分布式的信息物理融合微电网电压频率二次恢复控制仿真研究 [PDF]
随着分布式清洁能源的普及,通信技术在协调各个分布式电源的控制中显得尤为重要。在电力信息传输的过程中,不同的网络状态下表现出不同的通信特性,严重的甚至会发生信息错乱丢包等行为,这对电网的实时控制产生严重影响。为研究信息系统对电力物理系统的实时影响,搭建了电力信息物理融合仿真平台,运用RT-LAB与OPNET两款实时仿真器,通过TCP/IP进行数据交互,对微电网电压、频率的集中式恢复与分布式恢复问题展开研究。仿真结果表明,该平台能有效地反映通信网络对电网控制的影响 ...
张文浩 +4 more
doaj +1 more source
ABSTRACT In conventional piezoceramics, the coordinated change between the dielectric constant (εr) and the piezoelectric charge constant (d33) usually limits the piezoelectric voltage constant g33 (g33 = d33/εr), a critical figure of merit for piezoelectric sensors.
Xiaoying Feng +7 more
wiley +1 more source
虚拟仿真(Virtual Reality)技术是20世纪40年代伴随着计算机发展而形成的实验研究新技术。人体形态学虚拟仿真实验教学平台的建设,主要是借助计算机虚拟仿真软件、多媒体、数据库等多种现代化信息技术手段,建设丰富的实验教学资源,为学生提供更为全面的多学科资源。学生可以利用虚拟仿真实验教学平台,同时进行多学科的交叉学习,融会贯通所需掌握基础知识点。在建设虚拟仿真实验教学平台的实践中对提高教学质量做了探索。
王丹 +6 more
doaj
ABSTRACT Regulating negative parameters of metacomposites is mainly limited by their unclear mechanisms, which affects their practical applications in new sensing, communication, electromagnetic (EM) protection and other fields. This work proposes a dual‐functional competitive design strategy based on the waste corncob‐derived carbon/polyaniline ...
Qiuyun Yang +4 more
wiley +1 more source
ABSTRACT Objectives Placental insufficiency contributes to many obstetric pathologies, but there is no bedside clinical tool to evaluate placental perfusion. We have developed a method to acquire multiple three‐dimensional (3D) power Doppler (PD) ultrasound (US) volumes of placental vasculature, with infrared camera tracking of the precise spatial ...
A. Xue +5 more
wiley +1 more source
为解决现有的变压器振动噪声仿真方法存在计算量过大、难以求解、对工程实际的参考价值较小的问题,文中提出一种基于Comsol Multiphysics有限元仿真软件的变压器振动噪声分步有限元仿真方法。首先,考虑硅钢片各向异性修正铁心材料参数,计算铁心在磁致伸缩效应影响下的形变仿真结果;其次,根据实际形态及彼此配合关系,考虑辐向油道,构建绕组、油箱、铁心和垫块的二维模型,获得绕组的振动仿真结果;最后,构建变压器整体三维模型,将铁心在磁致伸缩效应影响下的形变仿真结果以及绕组振动的形变结果引入声场仿真中,并将铁心、
谢璐佳 +7 more
doaj
Abstract Simulation studies are essential tools to assess statistical methods. Functioning as controlled experiments, simulations generate data from known underlying processes. However, unclear or incomplete reporting of simulation studies can impact their interpretability and reproducibility, potentially leading to the misuse of statistical methods ...
Coralie Williams +6 more
wiley +1 more source

