Results 61 to 70 of about 21,882 (195)
Simulate and Analysis the Performance of the Adjust Focus Voice-coil Actuator in Measuring Ptical Path [PDF]
, 2009 对测量光路中调焦音圈电机的特性进行了分析,通过对音圈电机特性的仿真,定性分析音圈电机设计参数对电机特性的影响情况。从建立音圈电机的数学模型出发,利用仿真软件SIMulInk实现音圈电机的建模、特性仿真。得到仿真结果后,通过适当调整电机的设计参数,分析电机特性的变化。仿真结果表明,音圈电机动子质量、磁钢磁密等参数的变化都对电机的响应时间、平稳性、稳态误差有较大的影响。在原设计的基础上,可适当地增加电机动子的质量以及磁钢磁密来减小响应时间和稳态误差。这些分析结果为音圈电机的加工 ...
张建寰, 洪盈传
core
Impact resistance performance of rockbolt system with(out) rubber cushion energy absorbing and buffering components [PDF]
The practice of impact resistance support in dangerous roadways has shown that energy absorbing and buffering components can improve the impact resistance performance of rockbolt support systems. A rubber cushion layer was used as an energy absorbing and
Fuqiang GAO +8 more
core +1 more source
Performance evaluation and improvement strategy for FTP servers in campus network [PDF]
, 2013 FTP is one of the important application systems in campus network.But most FTP servers have bottleneck in their performances,which causes low utilization to the resource.Therefore,according to the actual demand of the network in high schools,the working ...
Feng YU, Gang LI, Wei LIU
core +1 more source
Study on optical fiber multi-parameter sensor [PDF]
, 2020 Based on the principle of fiber Bragg grating detection,an optical fiber sensor for detecting wind speed and temperature and humidity in underground space was designed.The designed optical fiber wind speed sensor was based on the thermal flow detection ...
Fuqi WANG +6 more
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Organic phosphorus mineralization is a critical process in the phosphorus cycle, governing phosphorus bioavailability for plants. The PhoD gene, which encodes the key enzyme alkaline phosphatase, serves as a valuable biomarker for this process.
Sandhya Mishra +3 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2012 目的探讨呼出气冷凝液（EBC）收集方式,EBC保存时间与吸烟等对EBC内pH值、一氧化氮（NO）、过氧化氢（H2O2）测定结果的影响,从而确定EBC收集的条件,提高EBC内物质检测结果准确性。方法应用自行研制的EBC收集器对20名健康受试者进行EBC的收集。收集的受试者分别采用不同呼吸方式、不同冷却温度、不同通气管等进行样本收集。EBC的pH值测定应用pH仪,NO和H2O2测定分别采用化学分析法进行测定。结果 pH值检测主要受到EBC采集时呼吸方式的影响,NO检测受到EBC采集时呼吸方式 ...
吕晓红, 李丹, 袁海波, 华树成
doaj
, 2011 提出了一种基于时间事件模型的实时系统时序分析方法。该方法以仿真为基础对目标系统进行分析,不仅可以描述实时系统的周期和非周期任务,各种同步事件以及与时间有关的行为特征,而且还能够刻画实时系统中多个任务间的通信与同步特性;通过基于优先级的可抢占式的任务调度算法对目标模型进行仿真执行,并基于仿真结果对其进行时序分析,如任务响应时间和执行时间等,避免了形式化分析方法存在的状态空间爆炸问题 ...
徐晓峰, 李晓潮, 郭东辉, 陈艳
core
Research on switch migration method based on minimum cost path [PDF]
, 2020 In order to protect the controller,especially the controller in backbone network,from security threats and attacks,improve the security of the software-defined network (SDN) control plane,a switch migration algorithm based on minimum cost path was ...
Jing LIU, Yewei PU, Yingxu LAI
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Studies have shown that organisms may adjust metabolic rates in response to thermal variability, highlighting metabolic plasticity as a key adaptive mechanism. Understanding the extent of metabolic plasticity of an organism is key to predicting its adaptation to climate
Qian Hu +6 more
wiley +1 more source
The Hour that Never Comes and the Time that Remains
Journal of Analytical Psychology, EarlyView.Abstract This essay proposes a symbolic and clinical investigation of psychic temporality through two archetypal experiences of time: the hour that never comes and the time that remains. Drawing on analytical psychology, trauma theory and aesthetic philosophy, text explores how certain forms of suffering resist chronological resolution and persist as ...
Daniel Françoli Yago
wiley +1 more source