نتایج جستجو برای: risk zonation
تعداد نتایج: 944747 فیلتر نتایج به سال:
از آنجا که پدیده های واقعی همواره فازی، نادقیق و مبهم هستند. آنچه در ارزیابی این پدیده ها مهم به نظر می رسد امتیازدهی صحیح شاخص ها به منظور دستیابی به نتایج قابل استناد می باشد. فرسایش بادی نیز به عنوان یک پدیده واقعی واجد شاخص هایی هست که ساختار کیفی یا ساختار نامشخصی دارند که نمی توانند به دقت اندازه گیری شوند. در چنین مواردی به منظور دستیابی به ماتریس ارزشیابی می توان از اعداد فازی استفاده ک...
The extended Kalman filter (EKF) has long been recognized as a powerful, yet computationally intensive, methodology for stochastic parameter estimation. Three improvements to traditional algorithms are presented and applied to heterogeneous transmissivity estimation. First, the costly EKF covariance updates are replaced by more efficient approximations. Second, the zonation structure of the dis...
this paper is devoted to compiling a site geology map for town of amiriyeh, from seismic macro-zonation point of view using geophysical methods of shallow seismic, down-hole seismic and resistivity surveys. in this map site geology has been classified based on shear wave velocity, according to the criteria for site geology classification offered in the iranian code of practice for seismic resis...
In this chapter several approaches towards zonation and continuity of biocommunities in streams are analyzed. In older literature, rivers were described in well defined stretches from source to mouth. The biocommunities were described as entities in those stretches. Later, American scientists claimed that a river is a continuum with gradually changing conditions and henceforth gradually changin...
Goudemand et al. replot a subset of our well-constrained data using a new Early Triassic biostratigraphic scheme based on a lower-resolution ammonoid zonation scheme and hypothetical ammonoid-conodont correlation to produce a less distinct seawater temperature history. We dispute their unsubstantiated correlation and, consequently, their allegations.
Sarroud Dam is located in the north of Khorasan Razavi Province in the city of Kalat. Being located in a fault zone, it is necessary to inject the cut-off wall. Using remote sensing techniques, geographic information system, Landsat satellite imagery and field observations in this research, it was specified that the dam has been located within the range of the Sarroud Fault. According to this, ...
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