Neubau der Kultur‐ und Gesellschaftswissenschaftlichen Fakultät der Universität Salzburg

Mit der Planung und Errichtung des Neubaus für die Kultur‐ und Gesellschaftswissenschaftliche Fakultät (KGW) der Universität Salzburg entsteht ein Gebäude, das dank seiner exponierten und herausfordernden Architektur, aber auch wegen der Problematik des anstehenden Baugrunds höchste Anforderungen an die Aus‐ und Durchbildung des gesamten Tragwerks stellt, über das zu berichten lohnt. Dabei bedingen die unterschiedlichsten gestalterischen und funktionalen Anforderungen des Gebäudes bauteilkonkret spezifische Antworten, die frühzeitig in der Planung an zudenken und bezüglich ihrer Wirtschaftlichkeit zu bewerten waren. Die entwurfsbedingt weitgehende Freistellung der mittleren Geschosse des Baus von Stützelementen erfordert die Ausbildung weitspannender Tragwerke in den Obergeschossen, wobei hier nur begrenzt Platz für die Erzielung statischer Höhen zur Verfügung stand. Andererseits mussten die konzentriert angreifenden, beträchtlichen Lasten der Obergeschosse mit weit gespannten Gründungskonstruktionen verteilt und in den begrenzt tragfähigen Baugrund abgeleitet werden. The new building for the Faculty of Cultural & Social Sciences of the University of Salzburg — A remarkable building with an exceptional supporting structure. Due to its prominent and provocative architecture as well as because of the difficult ground conditions the new building for the Faculty of Cultural & Social Sciences (KGW) of the University of Salzburg becomes a building that requires the highest standards for the development and reali zation of the static superstructure, which is worth to mention. The most different design and functional requirements of the building call for component‐specific answers which had to be tackled early in the design and to be assessed regarding their economics. The design‐related extensive clearance of the middle floors from supporting elements requires the construction of large‐span supporting structures in the upper floors leaving only limited space to achieve static heights. Contrary to that, the immense acting forces of the upper floors had to be distributed through large‐span foundations and transferred into the inadequate loadbearing ground.     

跨国公司的崛起与我国企业走向世界

文章从国际跨国公司形成特点着手,阐述了我国企业走向世界,发展跨国公司是势在必行,但也存在着诸多挑战与问题。     

Testing the robustness of the dysphoria factor of the Simms et al. (2002) model of posttraumatic stress disorder.

The Simms et al. (2002) four-factor structure of posttraumatic stress disorder (PTSD) has been supported in many factor analytic studies, and the specificity of the dysphoria factor has been questioned because of its strong associations with measures of depression and anxiety. This study addressed this issue by conducting a confirmatory factor analysis while controlling for the symptoms of major depression (MD) and generalized anxiety disorder (GAD). Data from individuals who satisfied Criterion A of the diagnostic criteria for a Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM–IV) diagnosis of PTSD (n = 12,467) in the 2004–2005 National Epidemiologic Study on Alcohol and Related Conditions (NESARC) were used in the analysis. The results showed that after controlling for MD and GAD, the factor loadings for dysphoria items were significantly attenuated, although they remained relatively high and statistically significant. The present findings contribute to the debate regarding how PTSD should be conceptualized and assessed in future issues of the DSM. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

水力机械内部流动计算的一种新奇点法

提出了一种适用于奇点法解水力机械内部流动的进口边界条件给定方法，建立了直接解离散点涡方法计算薄翼平面环列翼栅的数学模型和算法，开发了相应的计算程序。实例计算结果与流场可视化实验结果对比分析表明，给出的方法较准确地描述了设计工况时叶栅进、出口的流动状态。     

油液光谱分析比例模型的建立

针对油液光谱分析中数学分析模型的建立问题，分析了现有光谱数据数学分析模型的不足，提出了比例模型的概念，介绍了比例模型的建立过程，给出了比例模型界限值的制定方法，并应用比例模型对某型发动机进行实际磨损状态监测。     

Optimisation of solar-hydrogen power system for household applications

A numerical method was developed for optimising solar–hydrogen energy system to supply renewable energy for typical household connected with the grid. The considered case study involved household located in Diyala Governorate, Iraq. The solar–hydrogen energy system was designed to meet the desired electrical load and increase the renewable energy fraction using optimum fuel cell capacity. The simulation process was conducted by MATLAB based on the experimental data for electrical load, solar radiation and ambient temperature at a 1-min time-step resolution. Results demonstrated that the optimum fuel cell capacity was approximately 2.25 kW at 1.8 kW photovoltaic power system based on the average of the daily energy consumption of 6.8 kWh. The yearly renewable energy fraction increased from 31.82% to 95.82% due to the integration of the photovoltaic system with a 2.25 kW fuel cell used as a robust energy storage unit. In addition, the energy supply, which is the economic aspect for the optimum system, levelised electricity cost by approximately $0.195/kWh. The obtained results showed that the proposed numerical analysis methodology offers a distinctive property that can be used effectively to optimise hybrid renewable energy systems.     

规划让城市更美好 都江堰灾后重建中规划思想之回顾

文章以都江堰三年重建中亲历的过程为素材,试图对其规划思想进行一次梳理,通过部分富有启发性的案例,解析其中蕴含的规划思想。     

浅析城市文化景观的环境基础及其核心特质——以东北地区为例

该文借用文化生态学的观点,认为城市像自然界的生物一样,其生存环境对它的产生、发展有很大的影响和决定作用.因此针对东北城市文化景观,该文从研究其文化生态环境八手,着重分析了对城市产生、发展影响较大的自然环境、社会环境和经济环境.通过对城市文化景观环境的分析,总结了东北地区城市文化景观的核心特质,并指出城市设计师要合理利用...     

国产重氮盐感光胶SF性能的分析与研究

国产重氮盐感光胶SF的性质是影响花版质量的一个方面,而网丝的规格、品种、前处理条件等均会影响花版上胶膜强度。本文通过系统测试研究,提出了可靠数据,旨在对工厂实际生产有所帮助。     

急性、分次及慢性γ线照射诱发猕猴生物效应的比较研究

本文就高剂量率急性一次(223mGy/min)、分次累积(223mGy/min,每周照射一次,0.25Gy/次)及低剂量率慢性连续(每周照射5天,50mGy/d)γ射线照射时,在0—2Gy 累积剂量范围内,对猕猴造血、免疫及细胞遗传学方面某些生物效应进行了比较研究。不同方式照射时机体损伤程度和特性不一,急性照射组各类效应均比其它受照组明显;而分次和慢性照射组的剂量-效应规律则比较相似。在低剂量率慢性照射情况下,PHA 激活淋巴细胞微核、淋巴细胞染色体无着丝点断片及总断裂数在累积剂量为0.25Gy 时就出现了明显增高(p<0.05),且与受照剂量呈线性正相关。它们的剂量-效应曲线尾部(在1—2Gy 区)均呈现有“坪”的现象。停照后一年中动态观察的结果表明,各照射组动物受照时所诱发的效应,绝大多数是可恢复的。急性组恢复至正常所需时间较其它组长,其中免疫和造血机能的恢复呈显著波动性,而细胞遗传学效应随停照后时间的延长逐步恢复。