俄歇电子能谱数据采集及数据处理系统

本文主要介绍Ａｐｐｌｅ　Ⅱ微机在俄歇电子能谱数据采集及数据处理中硬件和软件的设计．本 系统软件包括数据采集、数据快速显示和分段处理、数据平滑、扣本底、谱图微分与积分等．此 外还配有一个常用的数据库．本系统的最大特点是成本低、功能强、使用简单、方便．     

二态体系中的量子循环条件

在推导一个二态体系中的几何相对，强调了一般非绝热近似的循环条件，对于自旋1／2粒子在转动磁场中的特例则讨论了严格解。     

泥炭好食性链孢霉固体发酵饲料的研究

通过对泥炭原料、生产菌种、培养条件和后加工工艺路线的优选，建立了我国第一条年产３０００吨泥炭固体发酵饲料的工业生产线。利用草本泥炭等原料，采用选育的好食性链孢霉固体发酵制成饲料，其粗蛋白可达１８％以上。经毒理测定和喂养试验表明，安全无毒，动物喂养效果好，并能以泥炭取代部分精饲料，节约粮食，符合国情，“两效益”显著，易于推广应用。     

考虑双向限制弹性地基墙板的温度应力计算

本文对弹性地基上有垂直与水平方向约束的混凝土结构提出了一种计算温度应力的近似解析方法。通过计算机程序分析出板中温度应力随各种不同参数变化的规律。本文强调软土地基,尤其是上海淤泥质土上基础板的非均匀温度应力,它区别于硬岩地基,因为在硬岩地基上,当板的高跨比较小时,非均匀温度应力可以忽略不计。     

鲫和金鲫鳃表面亚显微结构特征的扫描电镜比较研究

应用扫描电镜对鲫和金鲫鳃表面亚微结构进行了详细的观察,并对二者鳃表面结构进行了比较.结果表明:鲫和金鲫虽然同属鲤科,但它们的鳃表面结构存在着很大差异.在鳃丝、鳃小片、鳃弓和鳃耙的上皮细胞方面,鲫和金鲫都有各自不同的形态特点;在鳃小片的排列方式及表面形态上,鲫和金鲫也存在较大差异;在鳃耙上,金鲫也没有鲫所具有的较为复杂的滤食结构;并且金鲫鳃耙表面腺体的大小与其附着结构也与鲫的有所不同.这些特征差异可能与鲫和金鲫在不同的生活环境中进行不同的生理功能是相关的.     

Analyses of the predicted changes of the global oceans under the increased greenhouse gases scenarios

A new climate model (ECHAM5/MPI-OM1) developed for the fourth assessment report of the Intergovernmental Panel on Climate Change (IPCC) at Max-Planck Institute for Meteorology is used to study the climate changes under the different increased CO2 scenarios (B1, A1B and A2). Based on the corresponding model results, the sea surface temperature and salinity structure, the variations of the thermohaline circulation (THC) and the changes of sea ice in the northern hemisphere are analyzed. It is concluded that from the year of 2000 to 2100, un- der the B1, A1B and A2 scenarios, the global mean sea surface temperatures (SST) would increase by 2.5℃, 3.5℃ and 4.0℃ respectively, especially in the region of the Arctic, the increase of SST would be even above 10.0℃; the maximal negative value of the variation of the fresh water flux is located in the sub- tropical oceans, while the precipitation in the eastern tropical Pacific increases. The strength of THC de- creases under the B1, A1B and A2 scenarios, and the reductions would be about 20%, 25% and 25.1% of the present THC strength respectively. In the north- ern hemisphere, the area of the sea ice cover would decrease by about 50% under the A1B scenario.     

The barrier layer in the southern region of the South China Sea

By analysing the CTD data in the southernregion of the South China Sea gathered during six cruisesbetween 1989 and 1999, a barrier layer with seasonalvariation just like what exists in the equatorial oceans isfound in this region. It is the first discovery in such amarginal sea yet. It is strong in autumn and a little weak in summer and winter. The thicker the barrier layer, the higher the average temperature of the upper mixed layer. The region with the thicker barrier layer overlaps the region with thehigher average temperature of the upper mixed layer, andaccords with the thicker region of the warm pool in the South China Sea got from the Levitus data. The barrier layer in the southern region of the South China Sea has significantinfluence on the heat storage of the upper ocean there.     

各种能源采暖方式运行费用的估算方法与比较

随着各种新的采暖方式的出现,需要对其运行费用进行综合分析与比较。通过分析采暖运行费用的组成,给出采暖运行费用的估算方法。结合燃料的实时价格、热值及热能利用效率等计算得出燃料的单位有效能源的耗资,同时给出了单位建筑整个采暖季的所需能耗。最后结合沈阳某酒店工程对采用各种热源采暖时的运行费用进行了分析比较,结果表明该方法对工程确定采暖方案具有一定的参考价值。     

新型采集凝固热热泵技术及系统综合供热性能分析

针对寒冷地区冬季地表水水温过低和干渠污水水流量不足等水源状况,提出了新型采集凝固热热泵技术,即在高峰热负荷下采集水源的凝固热为建筑物供热.为有效地提取凝固热,在介绍专用设备凝固换热器原理的基础上,初步分析了热泵系统的重要参数及综合性能指标.对4个典型城市的应用分析表明,采集凝固热热泵系统供热季节性能系数在4.05～4....     

液压阀阀体内流场的数值分析与可视化

液压滑阀是液压控制系统中控制液压油流动方向和流量的重要元件,阀体内流场特性直接影响阀的工作性能．按照实际使用中的参数,建立了滑阀的三维几何模型,利用CFD软件对其阀体内液体的流动状态进行了仿真分析,其结果对阀体结构的设计和性能优化都有重要的实际意义．