皮质类固醇在鼻息肉围手术期治疗中的不良反应

目的探讨鼻息肉、鼻息肉病患者围手术期全身应用肾上腺皮质激素后快速发生的不良反应及原因。方法回顾分析我院2002年2月至2005年5月204例鼻息肉、鼻息肉病住院病人中21例不良反应的发病情况。结果胃肠道症状7例,轻度睡眠障碍4例,顽固性呃逆5例,血压升高3例,血糖升高2例。结论短程全身应用正常剂量肾上腺皮质激素可发生不良反应,严格遵守用药原则及用药期间对患者宣教同等重要。     

Study of Physical Properties of SiCw/Al Composites During Unloaded Thermal Cycling

The thermal expansion coefficient of SiCw/Al composites squeeze cast during unloaded thermal cycling was determined and analyzed. The study had shown that the thermal expansion coefficient of SiCw/Al composites reduced greatly with temperature raising. The thermal expansion coefficient of artificial ageing treatment SiCw/Al composites during unloaded thermal cycling reduced gradually, while the thermal expansion coefficient of squeezing SiCw/Al composites increased gradually. In addition, the thermal expansion coefficient of SiCw/Al composites reduced drastically with fiber fraction increasing.     

温度箱期间核查方法及其探析

为了及时掌控温度箱的工作状态,保证温度箱的技术性能稳定可靠,确保检测结果准确有效,两年一次对温度箱的计量校准远远不够,定期或不定期的期间核查是定期校准的补充,也是解决上述问题的有效途径.期间核查是在两次检定(校准)之间,严格按规定的程序或规范对其进行技术参数检查,使其满足检测(校准)工作要求,保证检测结果准确有效.由于对期间核查的重要性认识不够,仍有部分实验室没有对设备/仪器进行期间核查,也没有开展期间核查的规定程序或核查方法研究和探索,仅依赖定期检定(校准).本文就这一问题对环境实验室温度箱的期间核查方法进行探讨,提出了一种直观、简便、有效的期间核查方法,以与同仁探析.     

混合氡子体浓度测定和最小二乘法

本文介绍采样时和采样后测量混合氡氢子体浓度的方法,编成多用途计算机程序,计算给出了最佳采样和测量时间,用逆矩阵和加权最小二乘法处理测量数据,得到了较精确的测定结果。     

Thermo-Mechanical Analysis of Water-Cooled Gun Barrel During Burst Firing

The thermo-mechanical stress and deformation of water-cooled gun barrel during burst firing are studied by finite element analysis （FEA）. The problem is modeled in two steps： 1） A transient heat transfer analysis is first carried out in order to determine temperature evolution and to predict the residual temperatures during the burst firing event; 2） The thermo-mecha-nical stresses and deformation caused by both the residual temperature field and the gas pressure are then calculated. The results show that the residual temperature field tends to a steady state with the increasing of rounds. The residual temperature field has much effect on the gun barrel stress and deformation, especially on the assembly area between barrel and water jacket. The gage between the barrel and water jacket is the critical factor to the thermo- mechanical stress and deformation. The results of this analysis will be very useful to develop the new strength design theory of the liquid-cooled gun barrel.     

乐昌峡水利枢纽导流洞汛期封堵设计与施工

乐昌峡水利枢纽工程导流洞是少有的在汛期下闸封堵的大型工程,从2012年3月23日下闸至同年11月7日封堵体周边灌浆结束,历时7个多月,期间经历了几次洪水尤其是“6.23洪水”考验,仍顺利完成了封堵任务,满足了蓄水发电时间节点要求.该文从封堵体方案设计、为满足汛期下闸封堵采取的措施、施工安排及效果分析等方面,完整的介绍了乐昌峡导流洞封堵全过程,希望对类似工程起到借鉴作用.     

Ozone Generation from Oxygen and Air: Discharge Physics and Reaction Mechanisms

Industrial ozone generation uses a special high pressure, low temperature electrical discharge which is referred to as the dielectric barrier discharge or silent discharge. The filamentary structure of this discharge and the properties of individual microdischarges are discussed. The main reaction paths for the excited atomic and molecular species in oxygen and air are identified. Possible approaches to obtain high power densities, high ozone generating efficiencies or high ozone concentrations are discussed.     

油气场所施工防火防爆问题探讨

以油气场所为对象,根据不同性质的危险区域,着重分析了油田施工动火方面的防火防爆问题及采取的安全措施。     

高店双曲拱坝原型观测系统设置及蓄水前观测资料分析

简述高店水库工程双曲拱坝观测仪器的布置、选型及埋设施工情况,并对大坝在蓄水前所取得的观测资料进行了初步分析,为掌握大坝施工期的运行性态及工程的后期运行管理提供了依据,可供类似工程借鉴.     

国民革命阵亡将士公墓建筑规划意匠

国民革命阵亡将士公墓是利用灵谷寺旧址所建的大型纪念建筑群,在长达1公里中轴线上,顺山势布局。在巧妙继承、利用原有寺院传统规划空间格局、建筑设计元素甚至直接利用原有建筑（无量殿）基础上,运用钢筋混凝土、钢结构等新材料,＂中体西用＂,并通过空间转换、体型组合、色彩运用、材料表现和细部处理等手法,表达出庄重而又肃穆的氛围,以缅怀先烈。