نتایج جستجو برای: dfn model

تعداد نتایج: 2104440  

Journal: :Perspectivas em Diálogo: Revista de Educação e Sociedade 2022

A discussão sobre políticas de acessibilidade envolve várias possibilidades investigação e análise, quanto à chegada da pessoa com Deficiência Física Neuromotora/Paralisia Cerebral (DFN/PC) no ensino superior. Nesse contexto, o estudo tem como objetivo analisar acesso a permanência estudantes DFN/PC nesse nível ensino. metodologia contemplou pesquisa bibliográfica, por meio interpretação pressu...

Journal: :Geosciences 2022

The United Downs Deep Geothermal Project (UDDGP) is designed to utilize a presumably permeable steep dipping fault damage zone (constituting the hydrothermal reservoir in very low permeability granitic host rock) for fluid circulation and heat extraction between an injection well at 2.2 km depth (UD?2) production 5 (UD?1). Soft hydraulic stimulation was performed increase of reservoir. Numerica...

Journal: :IOP conference series 2021

Discrete Fracture Network (DFN) is a modeling framework for fractured rocks. The core element the description of geological medium as network discrete fractures that can be either generated from statistical distributions or imported deterministic surfaces. It an alternative to continuum methods with both advantages easily integrating properties fracture networks, and not assuming any homogeniza...

Journal: :Computer Networks 1987
Peter Kaufmann

Since the beginning of 1986 the Canadian Mailsystem EAN has been used in DFN. EAN is available for three operating systems: DEC-VMS, D E C U N I X B S D / U L T R I X , PCS-UNIX-V. About 40 installations are in operation, and about 20 further installations are in preparation (see Table 1). EAN does not fully conform with the C E N / CENELEC functional standard. There is a number of differences ...

Journal: :Eng 2023

The discrete fracture networks (DFN) have become indispensable tools for geomechanical modelling of jointed rock masses. technology creates a three-dimensional (3D) representation geometry used in the construction surface and subsurface engineering projects mining, civil engineering, fracturing reservoir oil gas industry. approach depends on accuracy data obtained during site investigation to c...

Due to existence of uncertainties in input geometrical properties of fractures, there is not any unique solution for assessing the stability of slopes in jointed rock masses. Therefore, the necessity of applying probabilistic analysis in these cases is inevitable. In this study a probabilistic analysis procedure together with relevant algorithms are developed using Discrete Fracture Network-Dis...

ژورنال: :نشریه علمی-پژوهشی مهندسی معدن 2014
قاسم شمس مصطفی شریف زاده مرتضی جوادی اصطهباناتی

یکی از مؤثرترین روش های مدل سازی رفتار هیدرولیکی توده سنگ و تحلیل جریان آب ورودی به درون حفریات زیرزمینی در محیط های سنگی دارای شکستگی، روش شبکه شکستگی مجزا (dfn) است. در بسیاری از مسائل تحلیل جریان با استفاده از روش dfn، دامنه مورد استفاده دارای چند صد تا چند هزار شکستگی است که وجود این تعداد شکستگی باعث پیچیدگی و افزایش شدید زمان محاسبات می شود. برای به کارگیری مؤثر این روش، لازم است که زمان ...

Journal: :Frontiers in Earth Science 2021

CORRECTION article Front. Earth Sci., 06 October 2021 | https://doi.org/10.3389/feart.2021.777904

2007
Beth L. Parker

This presentation provides an overview of a major field focused program of studies aimed at improved investigation methods and understanding organic contaminant source zones and plumes in fractured porous sedimentary rock. This research began in 1997, when intensive field studies were initiated at a TCE contaminated site on steeply dipping and faulted sandstone in California. Now, with collabor...

2003
Jürgen Vogel

Zusammenfassung: Das multimedia lecture board (mlb) ist ein sogenanntes Shared Whiteboard und ermöglicht die Präsentation und die gemeinsame Bearbeitung von Dokumenten in computergestützten Videokonferenzen. Es wurde im Rahmen des DFN-Projekts “ANETTE” speziell für den Einsatz in TeleteachingVeranstaltungen entwickelt und findet seit dem Sommersemester 2001 Verwendung an verschiedenen Universit...

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