نتایج جستجو برای: slope protection
تعداد نتایج: 231921 فیلتر نتایج به سال:
This paper introduces the problem of non-coal mine open pit waste dump in Shandong province, puts forward plant ecological restoration mode as solution, analyzes through adopting GIS and RS technology, from four aspects: elevation, slope, slope direction sensitivity design area, combines field investigation to carry out structural reinforcement on abandoned dump, design. The different species l...
خاک های مرتعی از دید اکولوژیکی دارای اهمیت فوق العاده ای می باشند. مراتع حدود نیمی از اراضی دنیا را پوشانده و وجود ارتفاعات زاگرس در استان چهار محال و بختیاری پوشش متنوعی از مراتع را به وجود آورده است که به دلیل ویژگی و موقعیت خاص جغرافیایی، شرایط آب و هوایی و همچنین تشکیلات زمین شناسی از اهمیتی حیاتی برخوردار می باشند. ماده ی مادری و پستی بلندی جزو فاکتورهای ذاتی کیفیت خاک محسوب می شوند ولی هن...
Precast concrete block slope protection is widely used due to its advantages of easy detection and laying, ease organization, the limited time required for construction. In order prevent soil or gravel bedding precast from being subjected wind wave pressures, joints between blocks are usually filled with mortar. However, existing standards do not specify width material joints. Furthermore, exce...
Superimposed current components contain effective information, which can be employed to enhance the dependability and security of busbar protection relays. This study aims investigate use slope degree grey incidence analysis model design a methodology for protection. A grey-based criterion has been established inspect similarities superimposed currents measured by nearby CTs inside zone. It is ...
BACKGROUND Recent reports indicated that the slope of the foveal depression influences the macular pigment (MP) spatial profile. MP has been shown to confer possible protection against age-related macular degeneration (ARMD) because of its antioxidant properties. AIMS To study the configuration of foveal slope and the foveal thickness in fellow eyes of subjects with unilateral neovascular ARMD....
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