重庆菜袁路隧道模拟设计

本文论述应用平面变形条件下的模型试验结果,分析研究重庆菜袁隧道的初步设计,确定喷射混凝土和岩石锚杆的尺寸和二次衬砌的厚度,以及选择适合的施工方法。     

山水草堂:中式庭园低密度住宅规划及设计方案

该项目位于西安市南郊秦岭北麓环山生态旅游区内,距西安市中心30余km。中式庭园低密度住宅区是山水草堂项目一期的一部分.位于总征地范围的东侧。其用地方整.地形南高北低.北侧为环山公路及其林带.南侧为黑河输水管道控制用地(绿化带).西侧为区内公园.东侧为外围道路,用地中部有一山中溪流由南至北通过。总建筑面积63507m2.总户数342户。     

QDCORS在青岛地铁控制网中的应用研究

提出以QDCORS作为青岛地铁卫星定位控制网的起算基准,介绍外业观测时的注意事项及数据解算时的流程,结合其在青岛地铁控制网中的应用和数据分析说明了用CORS作为城市地铁控制网的起算数据可以有效保证各条地铁线路空间基准的统一性。     

Effects of Air Inlet Configuration on Forced-Ventilation Enclosure Fires on a Naval Ship

The effects of air inlet configuration on pool fire behavior in a mechanically ventilated cabin were investigated. The closed cabin used was a model of a certain machinery cabin on a naval ship. Two air inlet configurations of one vent and two vents were taken into account together with five different elevations of air inlet. In one-vent cases, mass loss rate and gas temperature were lower and oxygen concentrations were higher than those of two-vent cases. With the increase of air inlet elevation, a sudden drop in average mass loss rate and peak temperature were found in the two-vent cases at the air inlet elevation of 1.56 m. In one-vent cases, a similar drop in average mass loss rate was found at the air inlet elevation of 0.88 m, while the peak temperature was almost unaffected by inlet elevation. According to temperature profiles and the characteristic parameter of the smoke layer stability, the formation of the smoke layer was destroyed by increasing the air inlet elevation or reducing the air inlets, and furthermore a more uniform distribution could be found. For the current cabin, the one-vent case with a lower air inlet elevation was recommended for smoke control, and the inlet should be set away from the essential equipment and the entrances of the cabin.     

灰色系统理论下的建筑形态分析——以滇南传统建筑为例

20世纪80年代以来,灰色系统理论1）提出以后,便以一种有力的姿态立于科学之林,在学术界引起了较大的反响,并受到广泛关注。目前这一理论和方法已应用于不同学科及领域的研究之中,并获得相应的丰硕成果。文章以灰色系统理论为基础,以其模糊与不确定的特性切入建筑学学科领域的研究,通过灰色系统理论的植入及建筑“灰”的决定因素进而到建筑“灰”的形态,从空间的营造、形体的塑造、功能的使用、材料的应用等方面进行了较为深入系统的研究,探寻其蕴含的设计思想和营造理念,试图以灰色系统理论来探索建筑设计理论。     

新型集成化光学陀螺技术

介绍了新型集成化光学陀螺的概念和特点,总结了新型集成化光学陀螺的研究方案和研究进展,指出未来新型集成化光学陀螺可能的发展方向和发展前景.     

弹道计算中正常重力的计算方法分析

针对弹道计算中正常重力的计算问题,分析了两种正常重力计算方法的特点,认为拉普拉斯方法的缺点是大地水准面形状确定困难而斯托克斯方法缺少地球表面外空间的正常重力算法.根据斯托克斯方法所定义的正常重力模型,将索米里安公式推广到地球表面的外空间,从而得到了一种正常重力的精确算法.通过计算对比这两种重力计算方法的差异,得出在使用拉普拉斯方法计算正常重力并取合适的球谐级数项时,可直接采用正常地球椭球面作为大地水准面,不会对弹道计算造成大的计算误差.     

Effects of Ca2+, Mg2+, Na+, and K+ substitutions on the microstructure and electrical properties of GdCoO3 ceramics

Journal of Electroceramics - GdCoO3-δ, Gd0.975Na0.025CoO3-δ, Gd0.98K0.02CoO3-δ, Gd0.98Ca0.02CoO3-δ, and GdCo0.99Mg0.01O3-δ ceramics were prepared via a solid-state reaction...     

Feature analysis of women's wedding dresses in new,style weddings in the Wu culture region in modern times北大核心CSCD

To further clarify the features of wedding dresses in new, style weddings in cities and towns of the Wu culture region, the author sorted out and made a statistical analysis of modern journals and periodicals as well as conducted a comparison in combination with diaries of celebrities and novels in modern times to collect 368 wedding photos in total in the Wu culture region. The analysis results indicate that wedding dresses in the Wu culture region were mainly of modified styles from 1859 to 1949, the development of wedding dresses went through the stages of unitary styles, mixed styles and diversified styles, in each of which there were also representative regular ways of matching. In general, wedding dresses were in simple, elegant and delicate styles, and the silhouettes kept up with popular western styles, showing a high level of acceptance of foreign cultures. The colors of wedding dresses tended to combinations of light colors, while traditional colors were gradually reduced. Besides, patterns of flowers and plants with thin stems and leaves were mainly used to decorate wedding dresses, showing the distribution features of scattering and covering. © 2018 China Silk Association. All rights reserved.     

振动沉管灌注桩的沉管贯入阻力及沉桩可能性分析

简述了影响振动沉管灌注桩施工过程中沉管的主要因素,根据振动沉管灌注桩的沉管贯入机理,提出了沉管过程中贯入阻力的估算公式,并通过具体实例进行了分析,以合理选择施工桩机与施工顺序,从而达到设计要求。