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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク EconMult ： ウィキペディア英語版 EconMult EconMult is a general fleet model to be used in fisheries modelling. EconMult has been developed since 1991 as a part of the Multispecies management programme by the Norwegian Research Council at the Norwegian College of Fishery Science (University of Tromsø, Norway). ==Model resolution and key variables== EconMult is a discrete time simulation model where the fleet activity is controlled by two variables: ''Number of vessels (v)'' (within each fleet segment) and ''Number of fishing days d)'' (within each time interval). ''The biomass units'' (''x'') are exogenous variables. The model resolution is determined by four structural variables: ''Number of fleet groups j)'', ''Number of targeted species n)'', ''Number of biomass units i)'' (which may be more than one within each targeted species) and ''Period length'' (time step in the simulation). The number of vessels and fishing days therefore are presented in fleet (columns)-targeted species (rows) matrices, while the biomass units is presented in a column vector (''X''): & \cdots & v_ \\ \vdots & \ddots & \vdots \\ v_ & \cdots & v_ \end | style="padding-left:2em" | $$ D = \begin d_ & \cdots & d_ \\ \vdots & \ddots & \vdots \\ d_ & \cdots & d_ \end | style="padding-left:2em" | $X\; =\; \backslash begin\; x\_\; \backslash \backslash \; \backslash vdots\; \backslash \backslash \; x\_\; \backslash end$ | style="padding-left:2em" | $i\; \backslash ge\; n\; >\; 0$ $j\; >\; 0\; \backslash ,\backslash !$ |} 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「EconMult」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.