緩發中子比 的英文怎麼說
中文拼音 [huǎnfāzhōngzibǐ]
緩發中子比
英文
delayed neutron fraction-
Besides, the sedimentary facies of upper ganchaigou and lower ganchaigou formation were also mapped in supersequences which are the main target strata for exploration. the high resolution sequence stratigraphic framework showed the genetic relationship between the distributions of sedimentary facies and their tectonic settings. the near - source sedimentary systems such as subaqueous alluvial fan and lake - floor fan are often deposed in rise - hemicycles in the steep slope background in the north, the coarse lithology of fan - delta prograded from north to south in fall - hemicycles, and the braided stream facies are formed in the rise - hemicycles in gentle slope background in the south, braided stream facies prograded from sorth to north in the fall - hemicycles, but the lacustrine facies and salt lake facies developed in the middle part of the area
詳細的沉積相研究發現，紅獅地區第三系發育有沖積扇、水下沖積扇、河流、三角洲、扇三角洲、湖泊和湖底扇7種主要沉積相類型，並對作為區內主要勘探目的層系的下乾柴溝組和上乾柴溝組進行了以超層序為單位的沉積相平面編圖，以較高的時間解析度揭示了區內沉積相帶的平面展布及其在不同構造背景中的分佈規律，比如在北部的凹陷陡坡背景下，上升半旋迴低水位期通常發育有水下扇、湖底扇等陡岸近源特徵的沉積體系，下降半旋迴高水位期，扇三角洲相粗碎屑巖由北向南進積;在南部的凹陷緩坡背景下，上升半旋迴主要發育辮狀河流相，下降半旋迴辮狀河三角洲相由南向北進積;而中部紅柳泉一獅子溝一帶則為湖泊相沉積和鹽類沉積。The expression efficiency difference between ped5 and pcdhfrl, a vector utilizing cmv enhancer / promoter ( pcmv - ie ) for foreign protein production, was analyzed using human interferon - p ( ifn - ) gene and human secreted alkaline phosphatase ( seap ) gene as reporters. when analyzed in transient expression, ped5 showed a little more protein produciton than pcdhfrl. however, in continuous expression, when serum concentration was lessened to slow down cell proliferation, ped5 expressed 3. 1 times more reporter proteins than pcdhfrl, which implied that pef - io was less affected by cell cycle status in contrast to pcmv - ie, making ped5 a good expression vector for foreign protein production
應用人-干擾素（ ifn - ）和人分泌型堿性磷酸酶（ seap ）基因作為報告基因，對含有巨細胞病毒即早期啟動子（ p _ （ cmv - ie ） ）的表達載體pcdhfr1和ped5表達外源蛋白的能力進行了比較，發現對于瞬時表達， ped5略好於pcdhfr1 ；在穩定表達中，通過降低血清濃度，使細胞增殖緩慢，這時ped5表達外源蛋白的能力較pcdhfr1高3 . 1倍。“ the cognitive development of their children is reduced, and their own cognitive development is impaired compared with those mothers with a later first birth, ” times online quoted the researchers, as saying
《泰晤士報》網站在報道中援引研究人員的話說： 「這造成孩子的認知發育減緩，與那些晚生育的女性相比，少女媽媽自身的智力發展也受到損害。 」Secondllv in the 1 d random traffic flow model. the relation function between the correlation and the creation. disappearance. brake probabilities of the vehicles is presented. according to the statistical mechanical approach to the spatial correlation functions. the theoretical results agree with that of the computer simulation. thirdh. based on the bml model. a main - road traffic flow model with two speeds on two dimensions is designed. this model simulate the traffic situation of one main road and several branches in the cit traffic lights placed on the crossing. vehicles breaking ~ vhile running and turning to other direction while jamming. we investigate the ~ ' e1ocitv and flo ~ ~ of the model when the initial densitvthe brake and turning probabilities. the green to signal rati3. thc number of the branches and the period of the signal are changed. then the reasons causing all the kinds of phenomena are analvzed. finallv. we simulate the bml model using the method of lattice boltzmann which ~ vas brought out by liu mu - renand obtain the velocity - density graph similar to the previous result. the upper critical densiw above which there are oniv jamming configurations. and the lo ~ ver critical density below which there are only moving configurations are the same as before. the boltzmann function which is on the lattices shows the moving and jaxmning transition obviouslv. thus it proves the possibilit of this method on the traffic research
接著，建立了和研究了二維二速的主幹道模型，該模型模擬了城市交通中一條主幹道，多條支道的交通情況，在幹道與支道的交叉路口設置紅綠燈，車輛在運行中可以有對突發事件發生反應的剎車，在發生堵塞時，路口的車輛可考慮通過轉向來緩解交通等各種實際情況的發生，給出了車輛演化的演化方程，並通過計算機模擬，研究模型在改變車輛的初始密度、剎車概率、轉向概率、支道數、紅綠燈信號的綠信比、紅綠燈信號周期等各種情況下支、主幹道車輛的速度、流量的變化，並分析在各種情況下交通狀況的成因，提出改善交通的有效措施。最後，在劉慕仁提出的用格子boltzmann方法研究一維決定論交通流的思路下，將此法推廣到對二維bml模型的模擬上，得到了與用以往方法的研究結果相類似的速度-密度圖線，且車輛從運動相到堵塞相轉變的上下臨界密度是一致的，同時分別給出車輛在處于暢通相和堵塞相時， boltzmann函數在格子上的分佈情況，進一步驗證了此法的可行性。分享友人