Results 1 to 10 of about 8,015 (147)

Research on middle beam pin shaft node of hydraulic support test bench based on AHP-Fuzzy analysis model [PDF]

open access: yes, 2023
In order to improve the situation of discontinuity in the range of stresses caused by pin deformation, the mathematical theoretical model of peak contact stresses after pin node deformation in the test rig was established based on the Hertzian contact ...
Biao JIANG   +4 more
core   +1 more source

Impacts of regreening on soil microbial community and its assembly process in open-pit mining area of the Loess Plateau [PDF]

open access: yes, 2023
Vegetation restoration is an important indicator of ecosystem health in a mining area. Understanding the impact of vegetation restoration on the characteristics and assembly process of soil microbial community is very important to explore the resilience ...
Dong XIAO   +5 more
core   +1 more source

Review of Community Detection in Complex Brain Networks [PDF]

open access: yes, 2023
The brain network community detection algorithm has become a highly regarded topic in recent years within the fields of neuroscience and network science, widely employed to unveil patterns of structural and functional connectivity in the brain.
WEN Xuyun, NIE Ziyu, CAO Qumei, ZHANG Daoqiang
core   +1 more source

考虑数据中心和分布式能源接入的配电网双层规划方法 [PDF]

open access: yes, 2023
在大数据时代背景下,社会对数据处理需求的增加导致电网中数据中心的负荷不断增长,若按数据中心原始负荷接入电网,会对配电网运行产生较大的负担。而数据中心的批处理负载与配备的储能设备决定了其可以作为灵活性负荷接入电网参与需求响应。通过选取包含数据中心、常规负荷与光伏机组的配电网作为研究对象,采用双层规划方法建立了考虑数据中心运行灵活性和分布式光伏接入的配电网规划模型,上层模型以最小化配电网系统的规划与运行成本为目标,对配电网线路以及其内部的光伏机组与燃气轮机容量进行规划 ...
徐衍会   +4 more
core   +1 more source

TSL:predicting popularity of Facebook content based on tie strength [PDF]

open access: yes, 2019
The rapid development of online social networks leads to an explosion of information,however,there are great differences in the popularity of different messages,and accurate prediction is always a great difficulty is the current study.Popularity ...
Binxing FANG   +3 more
core   +1 more source

Differentiated protection strategy with dynamic traffic grooming based on clustering [PDF]

open access: yes, 2015
To make dynamic traffic grooming faster and more efficient,and achieve an intelligent differentiated protection,a differentiated protection strategy with dynamic traffic grooming based on clustering(DPS-DTGC)was proposed.The whole network topology was ...
Jian-bo TANG   +4 more
core   +1 more source

Blockchain trading mechanism based on attached chain for the delay tolerant network [PDF]

open access: yes, 2020
In order to deploy a blockchain on the non-continuous connectivity delay tolerant network,a blockchain trading mechanism was designed,which could run on this type of network.First,the identifier was introduced into the existing block structure and a ...
Lingling ZI, Xin CONG
core   +1 more source

带不同顶底连接件高强螺栓连接铝合金梁柱节点抗震性能研究

open access: yesJianzhu Gangjiegou Jinzhan, 2022
为研究高强螺栓连接铝合金框架梁柱节点的抗震性能,对带双腹板角型连接件的顶底角型件连接节点(节点SL)、顶底T形件连接节点(节点ST)、顶底加肋角型件连接节点(节点SC)进行循环加载试验研究,分析节点的滞回特性、刚度退化、承载能力及耗能能力等。结果表明:三类节点变形性能良好,最大层间位移角均超过0.03 rad,满足美国规范FEMA 350的延性设计要求;节点SL和节点ST的延性系数均大于3.0,破坏形态为连接件发生断裂,二者在保证充分耗能后应按连接件的极限承载力进行设计 ...
张铮, 陈培旭, 廖仁生, 张其林
doaj  

International clinical practice recommendations on the definition, diagnosis, assessment, intervention, and psychosocial aspects of developmental coordination disorder – Chinese (Mandarin) translation

open access: yesDevelopmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019
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

模块化建筑钢结构模块间新型节点及其承载性能

open access: yesJianzhu Gangjiegou Jinzhan, 2022
提出了一种模块化建筑钢结构模块间螺栓-抗剪键节点,并分析了其受力性能。该节点的构造形式一方面实现了竖向承载与水平承载方式的分离,便于节点进行设计和分析;另一方面使得模块间连接操作在室内就可以完成,适用于多种安装位置。通过理论分析得到了双模块连接节点抗拉承载力、抗剪承载力和抗弯承载力的计算方法。使用ABAQUS建立该节点的有限元模型并进行数值模拟,验证节点承载力计算方法的有效性。通过对比双模块连接节点和四模块连接节点的数值模拟结果,说明了共用连接板对节点受力性能影响较小 ...
陈红磊, 陈琛, 李国强
doaj  

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