高原地域因素财藏族民居室内窒间影响探究

该文从高原地域因素,即自然环境、社会文化和经济技术三个方面分析对藏族民居室内空间布局、空间组织和视觉塑造的影响,以期从理论上进行经验总结,为当地民居的发展提供科学理论依据。     

Electrochemical polishing of monocrystalline silicon with specific crystallographic planes

In this study, an electrolytic polishing experimental system was developed to obtain a uniform, flat-surfaced monocrystalline silicon with specific crystallographic planes. Several key factors reflecting specific electrolytic polishing on monocrystalline silicon with specific crystallographic planes were summarized. These factors, including electrolyte, conduction mode, Schottky barrier, semiconductor body resistance, and unidirectional conductivity, were analyzed comprehensively through energy spectrum analysis, theoretical modeling, and potential simulation. The effects of electrolytic polishing process were obtained, and corresponding solutions were proposed. Finally, the electrolytic polishing experiment for monocrystalline silicon with specific crystallographic planes was conducted. A uniform, flat-surfaced monocrystalline silicon with no metamorphic layer was then obtained. The flatness error of the center area was less than 0.201 µm. Furthermore, the crystallographic planes of monocrystalline silicon wafers showed no change.     

Manipulating user resistance to large-scale information systems through influence tactics

This study examines how influence tactics can be used to manipulate user resistance and subsequent usage behaviors in the context of large-scale, newly implemented information systems (IS). To do so, we integrate the theory of interpersonal influence and leadership, adaptive structuration theory, and the literature on user resistance and behavioral IS theories, and develop a comprehensive theoretical model anchored in (a) social influence tactics, (b) IT artifact perceptions, and (c) user resistance and subsequent behaviors. The resultant theoretical model explains how influence tactics modulate user perceptions, user resistance to the system, and ultimately the unfaithful use of the system. This model is tested in the context of an electronic medical record (EMR) system implementation, with a sample of 442 clinicians who were exposed to various influence tactics and with the use of SEM techniques. The results indicate that certain influence tactics are beneficial in reducing user resistance while others can unintentionally increase resistance. Resistance, in turn, drives adaptive user behaviors in the form of unfaithful use of the system. Thus, it is possible to manipulate resistance and resultant adaptive behaviors through influence tactics, without necessarily altering the IT artifact. This is particularly important, as many off-the-shelf IT artifacts cannot be substantially modified.     

"中国热"与"新中国热"时期中国古典园林艺术对西方园林发展影响的研究

在回顾中国传统园林理论对西方园林影响的历史的基础上,从中国园林西渐历程“、中国热”时期对西方园林的影响等方面深入研究了中国园林在西方第一次传播与影响的过程与结果;进而从造园思想、园林布局、造园要素等方面的具体影响进行更为深入的分析,来获取对中国传统园林更为客观、真实的认识与评价,以求能在面对西方“强势文化”巨大冲击的时候重新确立正常的交流心态,并结合当前中国风景园林事业的发展现状和中国传统园林对西方影响启示的总结,积极探讨中国风景园林现代化进程的未来发展道路。     

热湿存储环境下须状晶体的生长机理与影响因素

纯哑锡表面的晶须特性已经成为IC封装中无铅焊接工艺实施的主要影响因素之一。由于其它替代方法,例如预先在引脚上镀Ni/Pd/Au层,会导致成本无法预估以及可靠性下降等问题,因此,目前的关注点是进一步减少纯锡表面须状晶体的生长。     

Generalized weighted likelihood density estimators with application to finite mixture of exponential family distributions

The family of weighted likelihood estimators largely overlaps with minimum divergence estimators. They are robust to data contaminations compared to MLE. We define the class of generalized weighted likelihood estimators (GWLE), provide its influence function and discuss the efficiency requirements. We introduce a new truncated cubic-inverse weight, which is both first and second order efficient and more robust than previously reported weights. We also discuss new ways of selecting the smoothing bandwidth and weighted starting values for the iterative algorithm. The advantage of the truncated cubic-inverse weight is illustrated in a simulation study of three-component normal mixtures model with large overlaps and heavy contaminations. A real data example is also provided.     

中国加入WTO对煤炭工业的影响与对策

从我国煤炭工业的现状和竞争力出发，分析了加入WTO后对促进我国煤炭工业的发展带来机遇的同时，也面临着严峻的挑战，提出了减少不良影响应采取的对策措施。     

论平巷掘进施工的成本控制措施

通过分析平巷施工成本构成，探讨了炮眼利用率、超挖及欠挖、炮眼数目、单位炸药消耗量、炮眼深度、工序安排、巷道作业面的数目、巷道的掘进速度等影响平巷成本的因素，提出通过采用2．5m深炮眼、光面爆破技术、选择合理的炮眼密集系数和炮眼装药满度系数，组织多头平行作业等措施控制成本。     

热因素对机床空间误差的影响分析

随着数控机床制造业的快速发展,热因素对数控加工精度的影响也越来越大。以华中8型数控系统的XHK715三轴立式加工中心为主要研究对象,通过对不同温度条件下机床各项误差的测量,分析了热因素对机床误差的影响,建立了热因素与误差影响的数学模型,推算出了热误差曲线拟合方程,得出热因素对机床各项误差的影响关系,为机床热误差控制提供了指导。     

密封器件压氦和预充氦细检漏过程中环境氦分压的影响

分别推导和分析了环境大气氦分压对压氦法的影响,地球干洁大气氦分压对预充氦法和预充氦密封器件压氦法复检的影响.证明对于压氦法,不需要考虑地球干洁大气氦分压的影响.但是如果候检室环境大气氦分压显著升高,对于内腔有效容积大,且等效标准漏率小的密封器件,会加大测量漏率值,所以压氦后,被检器件应尽快离开压氦设备所在的房间.对于预充氦法,地球干洁大气氦分压会使测量漏率通过极大值后出现极小值,且当候检时间与内腔有效容积之比大于100 h/cm3时,极小值点的气流仍处于分子流状态,不能靠粗检鉴别,所以需压氦法复检加粗检,才能防止漏检.另外,地球干洁大气氦分压会使预充氦法候检时间的第一特征点变大,从而扩大了需压氦法复检加粗检的范围,但第二特征点不变,也不影响压氦法复检加粗检的结果.