Results 71 to 80 of about 21,183 (172)
Research on Off-line Truing and Measuring Technology of Bonnet Polishing Tool [PDF]
, 2014 非球面光学元件以其优异的性能被广泛应用于军用和民用产品中，其性能和精度要求也日渐提高。抛光是非球面元件精密加工的最重要和最终的工序，对非球面的加工质量具有重要的影响，但传统的抛光技术存在明显的缺点。气囊抛光技术是一种新兴的、具有发展潜力的抛光技术，其具有吻合性好、精确可控等优点。气囊抛光工具作为与工件直接接触的部件，其尺寸精度和形状精度影响抛光加工的精度。为保证抛光加工过程的稳定性和精确可控性，在抛光加工中需要对气囊抛光工具进行精密修整。 根据气囊抛光机床及气囊抛光工具的组成和结构特点 ...
白志扬
core
Study on multi-parametric texture analysis for quantifying brain magnetic susceptibility in patients with Parkinson′s disease [PDF]
Objective·To quantify brain iron content in Parkinson′s disease (PD) patients by using quantitative susceptibility mapping (QSM) based on phase linearity fitting.
PEI Mengchao, ZHAO Xinxin
core +1 more source
Backdoor detection in embedded system firmware without file system [PDF]
, 2013 Any embedded system firmware without file system will integrate its system code and user application code into a single file.This setting has brought some additional difficulties to analyze them.Aimed at this kind of firmware,the problem of library ...
Chao-jian HU +3 more
core +1 more source
Conservation Biology, Volume 40, Issue 1, February 2026.The graphical abstract highlights the research collaboration with fishers through interviews to record fishers' knowledge and participatory monitoring, to provide data on small‐scale fisheries in three clear water rivers (Trombetas, Tapajos and Tocantins).
Renato A. M. Silvano +10 more
wiley +1 more source
Dianci bileiqi, 2015 海南岛是我国典型的雷击高发区,以海南电网雷电定位系统2005-2010年监测数据为基础,分析海南岛雷电活动的时间、空间、电流强度分布特征,对空间分布参数雷电日和地闪密度进行系统比较,并进一步研究了地闪密度等典型雷电参数在防雷工程中的应用方法。结果表明:海南岛中北部雷电活动最强烈,向四周发展雷电活动逐渐减弱,全岛雷电流幅值普遍较小;地闪密度相比雷电日参数更加科学适用;地闪密度可用于线路的引雷性能、易击段分析,结合雷电流参数可进行线路的易闪段分析及差异化防雷性能评估 ...
童雪芳, 陈家宏, 陈钦柱
doaj
Analysis of coal permeability model and influencing parameters based on volume strain [PDF]
To investigate the evolution of coal permeability during the process of gas pressure change, four different forms of permeability models were derived based on the correlation between mesoscale parameters of coal representative elementary volume (REV) and
Jinhao YU +6 more
core +1 more source
International Journal of Applied Linguistics, Volume 36, Issue 1, Page 162-174, February 2026.ABSTRACT Translanguaging theory and practices have enabled multilingual spaces where students’ full linguistic repertoires are valued, explored, and utilized by educators as resources across educational settings. However, research reporting supervision pedagogies incorporating international doctoral students’ multilingualism as intellectual resources ...
Wei Liu +3 more
wiley +1 more source
Gaoya dianqi, 2004 对目前在接地工程中相关参数取值存在的问题进行了分析和探讨,分析研究了目前在接地设计和改造中存在的误区,用技术经济分析的方法对接地装置采用的形式,主要参数的控制范围,以及对运行的影响进行了研究。
李景禄 +3 more
doaj
Applications of high-sensitivity flow cytometry for single mitochondria analysis [PDF]
, 2012 线粒体是细胞生命活动的控制中心，它不仅是细胞的能量中心，而且在多种诱因引发的细胞凋亡信号转导中起着重要的调节作用。以线粒体为切入点的信号转导研究，无论对于揭示细胞凋亡发生过程的分子机制，还是研究小分子化合物诱导肿瘤细胞凋亡的作用机理，均具有重要价值。与全细胞分析相比，单个线粒体水平上的分析能够排除其他细胞器的干扰，揭示线粒体功能之间的异质性，并有助于线粒体亚类的发现。然而，由于线粒体尺寸微小，与其功能相关的生化物质含量低以及缺乏灵敏的检测手段等原因，单个线粒体水平上的检测一直以来都是一个富有挑战性的课题。
张舒越
core
SWEET1‐mediated glucose transport is crucial for energy availability in Arabidopsis
New Phytologist, Volume 249, Issue 4, Page 1816-1830, February 2026.Summary The stress‐responsive hormone abscisic acid (ABA) is known for its inhibitory effects on various physiological processes, including seed germination, often resulting in energy deprivation. Interestingly, ABA‐induced germination inhibition can be alleviated by exogenous glucose (Glc), mimicking a functional interplay between ABA and sugar ...
Xueyi Xue +3 more
wiley +1 more source