So we speculate that the phenomena have n ' t connection with system ' s boundary 分析了覆蓋率與系統(tǒng)粒子數(shù)以及邊界之間的關(guān)系。
Under chinese current agricultural management system , the fanner ' s household couldn ' t connection with the market , contractual management couldn ' t meet the requirements for industrial extension , and the service function couldn ' t be realized 摘要我國(guó)現(xiàn)行農(nóng)業(yè)經(jīng)營(yíng)體制使得小農(nóng)戶與大市場(chǎng)無(wú)法對(duì)接,承包經(jīng)營(yíng)難以適應(yīng)產(chǎn)業(yè)延伸要求,服務(wù)功能難以到位。
In the brief introduction to geographical information system ( gis ) , this dissertation proves that by combining reliable management with gis technology , presents a method which built the power structure model and math calculation model by using spatial data in a good interface between computer and user . this dissertation makes a number of target for calculating the distribution system , mainly aimed at circumstances which have an effect on power station repair , switch breaker , type of t connection , and double lines supply via the usage of system reliability calculation . at the same time , it provides the projected estimatio n when power station or transmission line will be added into the power system , and furnishes the theoretical information that the professional needs for power structure programming , design and equipment management 通過(guò)建立輸變電設(shè)施管理信息系統(tǒng)( mis ) ,真實(shí)地反映出油田電網(wǎng)輸變電設(shè)施的運(yùn)行管理現(xiàn)狀,為網(wǎng)絡(luò)可靠性計(jì)算提供可靠的計(jì)算依據(jù);在簡(jiǎn)述地理信息系統(tǒng)( gis )技術(shù)的基礎(chǔ)上,論證了可靠性管理與電力gis技術(shù)結(jié)合的可能性,創(chuàng)立了在簡(jiǎn)潔的人機(jī)圖形界面下利用空間數(shù)據(jù)建立網(wǎng)絡(luò)結(jié)構(gòu)模型及可靠性計(jì)算模型的方法;通過(guò)建立網(wǎng)絡(luò)可靠性計(jì)算系統(tǒng),進(jìn)行了計(jì)及變電所檢修影響、切換開關(guān)、 t接點(diǎn)及雙回線供電情況下的可靠性指標(biāo)計(jì)算分析,對(duì)油田電網(wǎng)及變電所(線路)的改(擴(kuò))建方案、增強(qiáng)性措施及接入系統(tǒng)的可靠性給予了工程評(píng)估,為電網(wǎng)規(guī)劃、設(shè)計(jì)及日常的設(shè)備管理提供分析決策依據(jù)。