全文获取类型
收费全文 | 109篇 |
免费 | 0篇 |
国内免费 | 5篇 |
专业分类
安全科学 | 4篇 |
废物处理 | 17篇 |
环保管理 | 3篇 |
综合类 | 10篇 |
基础理论 | 21篇 |
污染及防治 | 50篇 |
评价与监测 | 2篇 |
社会与环境 | 7篇 |
出版年
2023年 | 1篇 |
2022年 | 1篇 |
2021年 | 1篇 |
2019年 | 1篇 |
2018年 | 1篇 |
2017年 | 1篇 |
2016年 | 2篇 |
2015年 | 3篇 |
2014年 | 4篇 |
2013年 | 8篇 |
2012年 | 3篇 |
2011年 | 10篇 |
2010年 | 4篇 |
2009年 | 9篇 |
2008年 | 9篇 |
2007年 | 7篇 |
2006年 | 5篇 |
2005年 | 2篇 |
2004年 | 8篇 |
2003年 | 5篇 |
2002年 | 6篇 |
2001年 | 1篇 |
2000年 | 1篇 |
1999年 | 2篇 |
1998年 | 1篇 |
1996年 | 2篇 |
1995年 | 1篇 |
1993年 | 1篇 |
1991年 | 2篇 |
1990年 | 2篇 |
1989年 | 1篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1980年 | 3篇 |
1979年 | 1篇 |
1974年 | 1篇 |
1973年 | 1篇 |
1972年 | 1篇 |
排序方式: 共有114条查询结果,搜索用时 0 毫秒
111.
Apple farmers in Kazuno, northern Japan, have started to grow peaches in the northernmost climatic region suitable for peach farming. Here, we investigate the process from the initial introduction of peach cultivation to its diffusion focusing on the farmers’ perceptions of climatic and non-climatic stimuli and their actions to respond to these stressors. Interviews with the farmers identified three distinct groups. Four farmers (Group 1) initiated the transition to peach production, which then spread to other farmers (Group 2) via personal connections. Later, after the provision of various means of support from the local government and the producers’ cooperative, many more apple farmers (Group 3) decided to begin peach production. Most farmers recognized the risk of damages to apple production as a result of typhoons and drought. However, only Group 1 farmers, who depend on direct sales to customers, mentioned these climate-related damages as a reason to shift toward peach cultivation in order to maintain their customers. The peach fruit was specifically chosen as a replacement for apple because it is less vulnerable to these climatic stressors. For Group 3 farmers, the financial losses associated with these climate-related events could be compensated for by insurance. Their decision to grow peach is largely due to its higher price and immunity against a specific disease which affects apples but they only shifted once institutional support was available, thereby reducing the risk in cultivating a new species. Our findings suggest that the role of institutions was not to drive the process of the adaptation itself but rather to provide relevant support to farmers to enable them to shift to new crop varieties more easily. We argue that such process-based understanding is crucial in formulating strategies to increase adaptive capacity in agriculture. 相似文献
112.
Salzar RS Bass CR Kent R Millington S Davis M Lucas S Rudd R Folk B Donnellan L Murakami D Kobayashi S 《Traffic injury prevention》2006,7(3):299-305
OBJECTIVE: This article assesses the position-dependent injury tolerance of the hip in the frontal direction based on testing of eight postmortem human subjects. METHODS: For each subject, the left and right hemipelvis complex was axially loaded using a previously developed test configuration. Six positions were defined from a seated femur neutral condition, combining flexed, neutral, and extended femur positions with abducted, neutral, and adducted positions. RESULTS: Axial injury tolerances based on peak force were found to be 6,850 +/- 840 N in the extended, neutral position and 4,080 +/- 830 N in the flexed, neutral position. From the flexed neutral orientation, the peak axial force increased 18% for 20 degrees abduction and decreased 6% for 20 degrees adduction. From the extended, neutral orientation, the peak axial force decreased 4% for 20 degrees abduction and decreased 3% for 20 degrees adduction. However, as there is evidence that increases in loading may occur after the initiation of fracture, the magnitude of the peak force is likely related to the extent of injury, not to the initial tolerance. Using the axial femur force at the initiation of fracture (assessed with acoustic crack sensors) as a potentially more relevant indicator of injury may lower the existing injury criteria. This fracture initiation force varied by position from 3,010 +/- 560 N in the flexed, neutral position to 5,470 N in the extended, abducted position. Further, there was a large position-dependent variation in the ratio of fracture initiation force to the peak axial force. The initiation of fracture was 83% of the peak axial force in the extended, abducted position, but the ratio was 34% in the extended, adducted position. CONCLUSIONS: This may have significant implications for the development of pelvic injury criteria by automobile designers attempting to mitigate pelvis injuries. 相似文献
113.
Uchida Tatsuhiko Ato Toshiki Kobayashi Daisuke Maghrebi Mahmoud F. Kawahara Yoshihisa 《Environmental Fluid Mechanics》2022,22(6):1355-1379
Environmental Fluid Mechanics - The main objective of conducting numerical simulations of flows in rivers with vegetation is to investigate the complex flow dynamics involved in non-equilibrium... 相似文献
114.
Koyanaka Shigeki Kobayashi Kenichiro 《Journal of Material Cycles and Waste Management》2023,25(2):851-862
Journal of Material Cycles and Waste Management - To improve the recycling process of waste from electrical products, we developed a sensor-based sorting system using convolutional neural network... 相似文献