variable adj. 1.易變的,變化無(wú)常的,無(wú)定的 (opp. constant, steady)。 2.可變的,能變的;變換的。 3.【數(shù)學(xué)】變量的;【天文學(xué)】變光的;【生物學(xué)】變異的。 Prices are variable according to the exchanges. 物價(jià)跟著匯率變動(dòng)。 a man of variable character 反復(fù)無(wú)常的人。 a rod of variable length (伸縮)如意棒。 a word of variable construction 可以作種種解釋的詞。 variable capital 可變資本。 a variable budget 臨時(shí)預(yù)算。 n. 1.易變的東西。 2.【數(shù)學(xué)】變量,變數(shù),變項(xiàng),變?cè)?(opp. constant);【天文學(xué)】變星 (=variable star);【航?!?方向不定的)變風(fēng),不定風(fēng) (opp. trade wind); 〔pl.〕 (貿(mào)易風(fēng)帶中的)變風(fēng)帶。 adv. -ably ,-ness n.
structure n. 1.構(gòu)造,結(jié)構(gòu);組織;石理,石紋。 2.建造物。 3.【化學(xué)】化學(xué)結(jié)構(gòu)。 4.【心理學(xué)】(直接經(jīng)驗(yàn)中顯現(xiàn)的)結(jié)構(gòu)性,整體性;整體結(jié)構(gòu)。 military structures 工事。 adj. -d ,-less adj.
This dissertation presents an improved method to study distribution network reconfiguration ( dnrc ) based on a refined genetic algorithm ( rga ) . structure variable dissipated network ( svdn ) is applied as simplified model of distribution network 采用變結(jié)構(gòu)耗散網(wǎng)絡(luò)作為配電網(wǎng)簡(jiǎn)化模型,并在該模型的基礎(chǔ)上實(shí)現(xiàn)了網(wǎng)絡(luò)接線分析、網(wǎng)絡(luò)輻射狀和無(wú)孤島判斷算法。
The influences of structure variables such as impeller types , baffle configurations , gas sparger , and operational variables such as gas rate , particle fraction on critical suspension speed of floating particle in an agitated vessel were investigated 摘要探討了攪拌槳型、擋板和氣體分布器等結(jié)構(gòu)因素及氣體流量、顆粒質(zhì)量分?jǐn)?shù)等工藝因素對(duì)下沉顆粒三相體系臨界攪拌轉(zhuǎn)速的影響。
Under distributing fault centralizing mode , constucting the mathematic mode of distribution network based on the theory of structure variable dissipated network . structure variable dissipated network is a new algorithm which can actualize distribution automation efficiently 在配電網(wǎng)采用故障集中控制模式下,通過(guò)簡(jiǎn)化的配電網(wǎng)模型,以變結(jié)構(gòu)耗散網(wǎng)絡(luò)理論為基礎(chǔ)建立配電網(wǎng)的數(shù)學(xué)模型,并在此模型下實(shí)現(xiàn)配電網(wǎng)饋線故障區(qū)域定位的功能。
Authors used auto - correlation method and took longhua area , shenzhen city , as working area to study the spatial structure characteristics of landscape pattern and their contributing factors . the results indicated that all the landscape structure variables , which were used in the analysis process , expressed good structure features . it means that the landscape pattern of working area was formed by some kinds of driving forces which could not only cover the whole area , but also had good continuity . detailed analysis resulted that the elevation differences were only the background impact factor of the landscape spatial pattern , but the intensive artificial landscape reforming of the fast urbanization process was the main contributing factor , which made the significant differences of landscape structure between 1988 and 1996 . since 1990 , the landscape of working area has gradually changed to a landscape dominated by human impact 利用空間自相關(guān)分析方法,以深圳市華地區(qū)為例,對(duì)快速城市化景觀的空間結(jié)構(gòu)特征及其成因進(jìn)行了研究。參與分析的景觀結(jié)構(gòu)變量均表現(xiàn)出較好的結(jié)構(gòu)性,表明該地區(qū)景觀是在一種既可以覆蓋全區(qū),又具有良好連續(xù)性的驅(qū)動(dòng)機(jī)制作用下形成的。進(jìn)一步詳細(xì)分析結(jié)果表明,工作區(qū)內(nèi)的地形條件差異是景觀空間分布格局成因的背景性因素,而快速城市化過(guò)程中人類活動(dòng)的強(qiáng)烈改造作用,是導(dǎo)致1988年和1996年景觀結(jié)構(gòu)特征發(fā)生顯著差異的根本性影響因素。
Combined with the practical situiation in distribution network , it ' s suitable to select graph algorithm as the theoretical algorithm base . based on structure variable dissipated network theory , this thesis detailedly discusses the transforms of base - to - shape , shape - to - base , vertex - to - arc , arc - to - vertex , over - heated arc dectection , load allotting , load balancing and optimum restoration 本論文基于變結(jié)構(gòu)耗散網(wǎng)絡(luò)理論,詳細(xì)討論了基形變換、形基變換、點(diǎn)弧變換、弧點(diǎn)變換、過(guò)熱弧搜尋、負(fù)荷分配、負(fù)荷均衡化以及優(yōu)化恢復(fù)非故障停電區(qū)域供電等一系列與饋線自動(dòng)化功能相關(guān)的處理算法。