منابع مشابه
[Research progress in post-fire debris flow].
The occurrence of the secondary disasters of forest fire has significant impacts on the environment quality and human health and safety. Post-fire debris flow is one of the most hazardous secondary disasters of forest fire. To understand the occurrence conditions of post-fire debris flow and to master its occurrence situation are the critical elements in post-fire hazard assessment. From the vi...
متن کاملa genre analytic study of research papers written by bilingual writers and their beliefs: a case of persian-english writers
تحقیق حاضر گزارشی است از تحلیل بخش مقدمه دو دسته از مقالات که عبارتند از: 11 مقاله از دو نویسنده دوزبانه فارسی زبان, که شامل مقدمه 4 مقاله به زبان انگلیسی و چاپ شده در مجلات بین المللی, مقدمه 3 مقاله به زبان انگلیسی و 4 مقاله به زبان فارسی چاپ شده در مجلات داخلی می شود؛ و 12 مقاله از محققان خارجی که در مجله applied linguistics به چاپ رسیده است. مبنای تئوری این تحلیل ها نظریه سوئلز (1990) یا هما...
15 صفحه اولWoody debris research: Overview
Fallen woody debris, standing dead trees (taller than 1.3 m) and stumps (shorter than 1.3 m) constitute a large portion of total above-ground carbon in tropical and temperate forests (Keller et al. 2004; Rice et al. 2004). In addition to being an important carbon pool, aboveground necromass is important in nutrient cycling, water retention, fuel load, and as resources for many organisms. Despit...
متن کاملMonitoring the propagation of a debris flow along a torrent
The results are presented of a field experiment on debris flow monitoring that were obtained in the summer of 1996 in a small mountain torrent in the Italian Alps. A network of seismic detectors was placed about one kilometre upstream of some previously existing gauging stations equipped with ultrasonic devices. In June and July two debris flows occurred, which were recorded both by the seismic...
متن کاملInfluence of rheology on debris-flow simulation
Systems of partial differential equations that include the momentum and the mass conservation equations are commonly used for the simulation of debris flow initiation, propagation and deposition both in field and in laboratory research. The numerical solution of the partial differential equations can be very complicated and consequently many approximations that neglect some of their terms have ...
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ژورنال
عنوان ژورنال: International Journal of Erosion Control Engineering
سال: 2009
ISSN: 1882-6547
DOI: 10.13101/ijece.2.1