豫北石板岩民居利用自然资源和应对环境的设计探讨

通过实地考察豫北石板岩地区高家台村和益伏口村,探讨了该地区民居建筑的村落选址、平面布局、空间组织及材料构造上应对环境和利用自然资源的模式和方法,总结出自然资源综合利用和自然环境主动应对的民居建造特点,以期从资源利用、环境应对的层面寻求设计的切入点。

城轨交通站域综合体应对周边环境设计策略

在分析郑州市桐柏路、西三环城市综合体项目的区位及周边环境的基础上,对轨道站域综合体进行分类;从轨道站域综合体的出入口近邻周边人流集散点、功能布局融合周边功能主体、空间界面巧借周边空间要素3个方面,探讨轨道站域综合体应对周边环境设计策略。

Countermeasures for Qinghai-Tibet Plateau to Cope with Climate Change and Ecological Environment Safety

The monitoring,prediction and assessment of status about climate changes and ecological environment at home and abroad were discussed in this study,and the scientific significance and countermeasures for Qinghai-Tibet Plateau to cope with these problems were also put forward.

浅析Lexus车系λ传感器工作原理及空燃比控制策略(一)

伴随经济的进步,社会的发展,当今的汽车工业技术有了质的飞跃,汽车的使用也呈现井喷式的增长,尾气作为汽车具有负面作用的环境问题,在最近的汽车技术方面,应对环境问题的重要性与日俱增,面对日益严峻的环境污染问题。

Application of Box-Behnken Design in Optimization of Allelopathic Effects of Potamogeton Pectinatus Against Microcystis Aeruginosa

Allelopathic effects of submerged macrophytes against algae are affected by many environmental factors which can only be measured one by one by traditional methods. Box-Behnken design of response surface methodology was used to optimize three environmental factors （temperature, light intensity and total dissolved solids） of allelopathic effects of Potarnogeton pectinatus against Microcystis aeruginosa at the same time. By solving the regression equation and analyzing the response surface contour plots, the optimal conditions of the relatively inhibitory rate of Microcystis aeruginosa were that the temperature was 23℃, the light intensity was 2 700 lx and the total dissolved solids were 4 415 mg/L. Under these conditions, the optimal value of relatively inhibitory rate of Microcystis aeruginosa was 81.9%. According to validation experiments, the results of analysis indicated that the experimental values fitted well with the predicted ones.

Seasonal variations in the phytoplankton community and the relationship between environmental factors of the sea around Xiaoheishan Island in China

Seasonal variations in the phytoplankton community and the relationship between environmental factors of the sea area around Xiaoheishan Island are investigated in the present study. Xiaoheishan Island is located at 37°58′14″N and 120°38′46″E in Shandong Province, China. A total of 65 species of phytoplankton belonging to three phyla and 27 genera were identified, with Bacillariophyta having the largest number of species. The annual average chlorophyll a concentration for this area was 3.11 μg/L, and there occurs a Skeletonema costatum bloom in winter. The Shannon-Weaver indexes(log_2) of the phytoplankton from all stations were higher than 1, and the Pielou indexes were all higher than 0.3. The results of the canonical correspondence analysis(CCA) indicated that water temperature, PO_4^(3ˉ) and Cu were the environmental factors that had the greatest influence on the distribution of the phytoplankton community throughout the entire year. Although the concentration of heavy metal is well up to the state standards of the first grade of China(GB 3097-1997), these metals still have an impact on the phytoplankton community from this area.

Applying a Process- and Dialogue-Centered Approach in Management Development at Loimaa Hospital

Management development has become a crucial element in the organizations function, and in the lives of their personnel, while working, learning. and developing have become more and more intimately interlinked. In a development-oriented working environment, there is a constant pressure to become ＂better＂, and this necessitates planned, strategic development programs. This paper examines the development of a process- and dialogue-centered approach and its implementation in a hospital environment. The production of information, learning, and professional expertise are seen as strongly dialogic and context-bound processes. During 2010-2011, a project to promote a patient-centered approach in nursing care and organizational reform was carried out at Loimaa Hospital, funded both from the Hospital＇s own resources and with the aid of a grant from the Finnish Work Environment Fund. The goals of the development process were： to reinforce the restructuring of services provision in the Hospital＇s departments; to support the spontaneously launched peer networking among charge nurses and assistant charge nurses; to model a patient-centered approach by means of mentoring; and to reinforce dialogic team working in pairs on the wards. This paper summarises the project＇s findings and describes the principles of the process-centered development.

Plant Communities and Factors Responsible for Vegetation Pattern in an Alpine Area of the Northwestern Himalaya

The study intended to describe the alpine vegetation of a protected area of the northwestern Himalaya and identify the important environmental variables responsible for species distribution.We placed random plots covering different habitats and altitude to record species composition and environmental variables.Vegetation was classified using hierarchical cluster analysis and vegetation-environment relationships were evaluated with Canonical Correspondence Analysis.Four communities,each in alpine shrub and meadows were delineated and well justified in the ordination plots.Indicator species for the different communities were identified.Maximum species richness and diversity were found in community IV among shrub communities and community II among the meadows.Studied environmental variables explained 61.5% variation in shrub vegetation and 59.8% variation in meadows.Soil variables explained higher variability (～35%) than spatial variables (～21%) in both shrubs and meadows.Altitude,among the spatial variables and carbon/nitrogen ratio and nitrogen among the soil variables explained maximum variation.About 40% variations left unexplained.Latitude and species diversity among the other variables had significant correlation with ordination axes.Study showed that altitude and C/N ratio played a significant role in species composition.Extensive sampling efforts and inclusion of other non-studied variables are also suggested for better understanding.

Analyzing Environmental Stress Counter-measures in Agricultural Heritage Sites in China

In recent years, with climate change, many agricultural systems are facing severe environmental stress, which are seriously threatening the food security and sustainable development of agricultural system. Although mainstream agro-system can effectively reduce the adverse agro-production effect rapidly by using modern technology, but many of them bring serious ecological crisis at the same time. For the sustainable development of agro-systems, the stress mitigation options must give full consideration to ecological protection. The Globally Important Agricultural Heritage Systems （GIAHS） sites, relying on its unique land use, water conservancy facilities, traditional crops, etc., form unique production system creating a better match with local natural conditions. Based on disaster mitigation system theory and practice, this paper analyzes environmental stress counter-measures of several GIAHS sites in China. The water requirement of milet, a drought-tolerant crop in Aohan Dryland Farming System （recognized as a GIAHS pilot site in 2012）, has a better match with local water conditions. By reducing vulnerability of crops, agriculture survived healthily in semi-arid regions. Honghe Hani Rice Terraces System （recognized as a GIAHS pilot site in 2010）, relying on the unique land and water use patterns, has successfully reshape disaster inducing environment, and effectively reduce the risk/effects of droughts. Besides, due to the high price, rich crop diversity and variety of income channel, the Agricultural Heritage sites can ensure the economic income and agro-system health when facing environmental stress. Stress counter-measures of traditional agricultural systems make full use of the regulation and spontaneity ability of the natural system, which is an important way to achieve sustainable development of ecological agriculture.