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Search Results: 1 - 10 of 5554 matches for " 白玉媛 "
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职业经理人价值评价模式探讨
白玉
武汉理工大学学报 , 2002,
Abstract: ?职业经理的出现是西方“经理革命”的产物。在西方,职业经理阶层已经形成,而在我国,职业经理正处于培养过程之中。如今,职业经理市场化已经成为职业经理人建设的唯一可靠途径。要真正实现职业经理的市场化,最基本的前提就是要能确定职业经理的价值。从职业经理人的价值构成出发,构建了职业经理人价值评价的指标体系,并提出了具有可操作性的评价方法
我国私营企业活力评价及对策研究
白玉
武汉理工大学学报 , 1999,
Abstract: ?在给出了企业活力的评价指标的标准值的基础上,通过与标准值、不同类型企业的活力状态之间的相互比较,对我国私营企业活力进行现状分析,并提出相应的对策。
信息时代的网络营销
白玉
武汉理工大学学报 , 2001,
Abstract: ?随着信息技术的迅速发展,极大地改变了原有市场营销理论和实务存在的基础。从网络营销的内涵出发,着重在产品、价格、渠道、促销等方面阐述了网络营销在现代市场营销中的作用以及实施程序
论品牌经营的基本功能及其战略模式的选择
白玉
武汉理工大学学报 , 2002,
Abstract: ?品牌经营是现代企业的一种新的竞争战略,从品牌经营的概念入手,分析了品牌经营的四大基本功能,提出了可供企业选择的多种品牌经营战略模式。
我国民营企业公司治理模式研究
白玉
武汉理工大学学报 , 1999,
Abstract: ?分析了民营企业公司治理中存在的缺陷,通过借鉴国外公司治理模式的优点,提出我国民营企业公司治理的目标模式
从企业并购看多元化经营的风险
白玉
武汉理工大学学报 , 2000,
Abstract: ?在分析和研究企业通过并购实施多元化经营战略的风险的基础上,论述了企业通过并购实施多元化经营战略的前提,阐明了企业运用并购实施多元化经营应注意的问题
电解分离低碳钢中非金属夹杂物的研究
莊育智,白玉,李静,李代锺
金属学报 , 1956,
Abstract: 木文叙述对电解分离低碳鋼非金属夾杂物进行系统试验的结果,并针对现有电解分离夾杂物方法提供了某些改进的意见.对分离稳定夹杂物而论,试验结果指出用硫酸亚鉄法(一种溶液)进行电解再用过硫酸铵法或硝酸法破坏碳化物是较为适当的;对分离不稳定夾杂物则以用亚硫酸钠法(两种溶液)较为满意.应用上述方法并结合金相检查对某种低碳结构鋼材进行试验,得到了有意义的结果.
地月空间航天器绕飞接近跟踪控制
Tracking control for cislunar spacecraft asymptotic fly-around

王毓,白玉,许展鹏,赵勇,陈小前
控制理论与应用 , 2018, DOI: 10.7641/CTA.2018.80103
Abstract: 在圆形限制性三体问题的框架下研究了地月空间航天器绕飞接近跟踪控制方法. 首先,以圆形限制性三体问题为基础建立了地月空间航天器相对运动模型, 并通过无量纲化和线性化方法对模型进行了简化. 接着, 将地月空间航天器绕飞接近跟踪控制问题转化为模型参考输出跟踪问题, 并结合模型参考输出跟踪理论和线性二次型最优控制理论设计绕飞接近跟踪控制器. 最后, 通过数学仿真验证控制器的有效性和可行性, 仿真结果表明该方法能够实现地月空间航天器绕飞接近跟踪控制, 对位置和速度的初始状态误差能够快速收敛.
This paper investigates the tracking control problem on cislunar spacecraft asymptotic fly-around, in the framework of circular restricted three-body problem. Firstly, based on the circular restricted three-body formation dynamics, the model of relative motion for cislunar spacecraft formation is developed, and the it is simplified by way of normalization and linearization soon afterwards. Then, the problem of asymptotic fly-around control is transformed into the problem of tracking the reference trajectory, and the controller is developed to achieve the problem according to the model reference output tracking theory and linear quadratic optimal theory. Finally, a numerical simulation is carried out to indicate that the method is effective; the results show that the proposed controller can realize asymptotic fly-around tracking control for deputy spacecraft in cislunar space, and the initial error of position and velocity can be converged rapidly.
循环microRNA在乳腺癌诊治中的应用
The Diagnostic and Therapeutic Application of Circulating microRNAs in Breast Cancer
 [PDF]

薛丽, 白玉
Medical Diagnosis (MD) , 2015, DOI: 10.12677/MD.2015.53010
Abstract: 微小核糖核酸(microRNAs, miRNAs)是一类具有调控功能的小分子非编码核糖核酸,与肿瘤的发生有密切关系。大量研究也充分证实了miRNAs在乳腺癌中的作用。循环miRNAs (circulating miRNAs)指存在于血液或其他体液中的细胞外游离microRNAs,具有稳定性好、取材方便、创伤小,可反复取样检测等优点,且与肿瘤发生和发展相关,因此被认为是最具潜力的肿瘤标志之一。本综述主要总结循环miRNAs在乳腺癌早期诊断、预后预测及指导治疗等方面研究及其临床应用进展,并探讨循环miRNAs临床应用所面临的挑战和需解决的问题。
MicroRNAs (miRNAs) are a class of short non-coding regulatory RNAs with an etiological contribution to carcinogensis. The involvement of miRNAs in breast cancer has been reiterated and irrefutably proved by many studies. Circulating miRNAs refer to the cell free miRNAs in the blood or other body fluids, with characteristics such as remarkable stability, ease of access, minimal invasiveness, possibility of repeated sampling, and proven roles in cancer development and progression, so it has been regarded as one of the most potential biomarkers of tumor. This review focuses on recent-finding of circulating miRNAs as biomarkers in early diagnostic, prognostic indications and treatment selection, along with an appraisal of the translational implication of this field. We also addressed the future and the problems and challenges that need to be overcome to achieve clinical implementation of circulating miRNAs.
Practical Automatic Test Generation Software for Digital Circuits
数字电路自动测试生成实用化软件

BAI Yu-yuan,YANG Shi-yuan,WANG Hong,
白玉
,杨士元,王红

计算机应用研究 , 2006,
Abstract: An automatic test generation software for digital circuits that named OCTOPUS100 has been introduced. For the sake of application of ATE and development of TPS, an ATPG system that can automatically generate fault diagnostic data for digital circuit on the Windows NT has been developed. This system is cheaper and easier to spread than earlier ATPG software. This software has the characteristics of flexibility, practicality and generality and its high practical value for the fault diagnostic has been validated by the experiments and probation.
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