p generation 中文意思是什麼

p generation 解釋
親本世代
  • p :
  • generation : n. 1. 代〈約30年〉，世代，時代；同時代的人。2. 一代[一世]。3. 生殖，生育；發生，產生。4. 【數學】（面、體、線的）形成。5. 完善化階段，完善化方案，完善化的模型；發展階段。
  1. Di - on electrics service and products cover the power electric field including power generation transmission distribution, power equipment manufacturing, subway, utilites, ac dc metrology field as well, more than 500 units of electric power utilities and stations such as beijing power supply bureau, guangzhou power supply bureau, baosteel, three gorges power station and more manufacturers like siemens, abb, alstom, bicc, pirelii, toshiba and more and 30 units of metrology institutes in china like nim, tsinghua university and more are our user. di - on electric is sole and exclusive distributor for numerous famous companies like transinor doble norway, measurements international canada, ndb canada, schuetz germany, aan germany, dr. strauss germany and etc, taking care of their business and service in p. r. china including hongkong

    絕大多數員工擁有本科和研究生以上學歷，在電力系統和計量系統工作多年，從事電力檢測帶電監測和計量測試儀器的技術服務和市場銷售工作長達10年以上，為約500多家電力工業系統的發供電部門如北京供電局，廣州電力局，深圳供電局，三峽電廠，廣州抽水蓄能電廠，田灣核電站等等，科研調試部門如廣東省電力試驗研究所，湖北省電力試驗研究所等等與設備生產廠如siemens ， abb ， alstom ， toshiba等等提供了國際最先進可靠的測試技術和儀器設備為約30多家國內二級以上相關計量科研院所，包括國家計量院，清華大學，中國運載火箭研究院，空間技術研究院，航天二院，成飛，西飛和各省市計量院，電力試驗研究院所等提供了大量最先進可靠的計量檢測儀器。
  2. This work was supported by the state science and technology ministry of p. r. china under the contact no. g20000683 - 06, and by the national natural science foundation of p. r. china under grant no. 60046001. gallium nitride is one of the 3rd generation semiconductor materials. from 1990 ' s, gan has attracted more and more attention and advanced rapidly, mainly due to its direct transition, wide band gap ( ~ 3. 4ev ) and other excellent characters

    Gan是直接躍遷的寬帶隙材料，具有禁帶寬度大（ 3 . 4ev ，遠大於si的1 . 12ev ，也大於sic的3 . 0ev ） ，電子漂移飽和速度高，介電常數小，導熱性能好等特點，在光電子器件和電子器件領域有著廣泛的應用前景。
  3. All the indexes of the second generation in the soil microorganism quantity, biomass, biochemistry activity and the change of soil enzyme activity of p. massoniana under the same condition are higher than those of the first generation

    結果表明，二代馬尾松林土壤微生物數量、微生物生物量碳強度、呼吸作用強度、硝化作用強度、蔗糖酶以及過氧化氫酶活性均高於一代馬尾松林。
  4. By solving possion equation, the automotive generation of 3 - d body - fitted coordinates ( bfc ) grid system is completed with its density controlled by the distribulation functions p, q, r. 4. a detailed description of the solving mode

    用微分方程法生成計算網格，採用泊松方程完成無堵塞泵的三維貼體網格的自動生成，通過構造波松方程源項p 、 q 、 r分佈函數控制網格的疏密度； 4
  5. Result 1, human antisense cd40 rna eukaryotic expression vector was constructed successfully. 2, in the presence of cd40 / pcdna3, cd40 expression was significantly decreased, cell proliferation and antibodies generation were significantly restrained, compared to that of the controls ( p < 0. 01 )

    2 、與轉染pcdna3空載體組或未轉染質粒組相比較，轉染cd40 pcdna3的健康人及sle患者b細胞系cd40的表達均明顯減少，增殖能力明顯下降， ig的分泌受到明顯抑制。
  6. Firstly, this paper introduces the asynchronous motor model, and compares it with the dc motor ’ s. then the paper studies the principle of vector control, and proposes an improved current model of rotor flux observer. this paper also studies the three - level inverter ’ s topology, working principle, the neutral - potential unbalance mechanism and its controlling strategy. the paper especially studies the svpwm in details. the interface between the vector control and the three - level inverter is studied in details, including the generation of reference voltage vector, its judging of the sector and triangular regions, and the working mechanism after it sent into three - level inverter. when synthesizing the reference voltage vector, select the vector which only includes p and o states as the starting vector, thus eliminate the vector shift problem when sector changes. this paper fully takes advantages of the powerful functions of matlab / simulink to set up the simulation model. this construction is very explicit. the simulation results verify the inverter voltage output is correct, the rotor flux is steady, the asynchronous motor ’ s dynamic and steady state performances and speed modulation are excellent

    本文首先介紹了異步電機的數學模型，在此基礎上將異步電機的數學模型與直流電機的數學模型進行了比較;然後介紹了矢量控制的基本原理，採用了一種改進的轉子磁鏈電流型觀測模型;對三電平逆變器的電路拓撲、工作原理、中點電位不平衡的機理及控制方法進行了介紹，詳細分析了空間矢量脈寬調制策略。本文對異步電機的矢量控制與三電平逆變器之間的介面進行了詳細的研究，包括:參考電壓矢量的形成、所落扇區與具體小三角形區域的判斷、送入逆變器之後的工作機理。在參考電壓矢量的合成時，選擇只包含p 、 o狀態的空間電壓矢量作為起始矢量，解決了扇區切換時的矢量突變問題。
  7. In this paper, i will present some algorithms of polyhedral visual hull reconstruction : ( 1 ) polyhedral v isual h ull generation a igorithm b ased one dge - pool - searching, which constrains the 3 - d intersections into the 2 - d planes intersection via the epipolar theory to reduce the complexity a nd c an r educe t he t imes f or c ones t o b e p rejected o nto t he i mage p lanes, i n which we induced the index list to every points on the surface of object, and connected the related points to get sub polygons on surface and in turn get the mesh model, we replace triangulation process of disordered points cloud by edge - pool searching. ; ( 2 ) reconstruction based on degenerated - polygon - intersection, which have the following improvements on traditional bull intersection : using degenerated polygon to orga nize intersected area on cone face, which may be discontinuous ; a fast intersection algorithm of polygons on the cone face based on degenerated polygons, which is consistent between the continuous polygons and the discontinuous ones. the intersection of degenerated polygons is similar to the convergence of two ordered lists, which is comparably simple to the bull operation ; ( 3 ) reconstruction algorithm based on ray - tracing, in which all the rays that run through the vertex on silhouette of object will intersect with all the cones correspondent to other silhouette, and we have to calculate the intersection of all such line segments, the endpoints of which are considered to lie on the surface of object and we will get the point cloud on the surface of object

    同時利用共極線原理把三維計算投影到二維平面以降低求交計算的復雜度，該演算法可以減少光錐向圖像平面投影計算的次數，以邊池搜索取代散亂點集上進行的三角剖分； （ 2 ）基於退化多邊形求交的多面體可見殼模型重構，系統引入退化多邊形的概念，把錐體平面的交集中不連通的部分用一個退化多邊形來表示，並引入了新的基於退化多邊形的求交演算法，與傳統多面體可見殼重構相比，該演算法有以下幾點創新：在圖像平面以退化多邊形組織投影錐體和物體輪廓的交集，把任意錐面與物體輪廓的交集歸一到一個退化多邊形；基於退化多邊形的二維平面上多邊形快速相交演算法，該演算法在一定程度上就是兩個有序鏈表的合併，大大簡化了先前的布爾求交計算； （ 3 ）基於光線跟蹤的演算法，該演算法中所有通過輪廓頂點的光線和對應其它圖像輪廓的光錐進行求交計算，最後得到每次求交計算得到線段的交集，該線段的頂點就認為是物體表面點，從而得到物體表面的點雲。
  8. Generation and its characteristics analysis for gps p - code

    碼產生與特性分析
  9. A service - centric ip quality of service architecture for next generation networks. in ieee network operations and management symposium, 2002, ieee ifip, noms 2002, florence, italy, april 15 - 19, 2002, pp. 139 - 154. 7 trimintzios p, andrikopoulos i, pavlou g et al

    在diffserv機制下，每一個業務都有一個業務類，在路由器和ds域中，可以通過控制業務類的最大負荷來控制它的服務質量，級別越高的業務類應該具有比較低的最大負荷。
  10. 4 feigenbaum e a, mccorduck p. the fifth generation, artificial intelligence and japan s computer challenge to the world

    T是一組類型組合規則，規定了哪些類型可以組合，以及組合后的新類型是什麼。
  11. A novel homogeneous immunoassay system, cloned enzyme donor immunoassay system ( cedia ), has been developed by henderson in 1986 on the basis of a - complementation reaction of 3 - galactosidase ( e. coli ). in the cedia test, genetic engineering was used for the generation and selection of enzyme acceptor ( ea ) and enzyme donor ( ed ) of p - galactosidase

    Henderson等人在1986年利用基因工程技術生產大腸桿菌-半乳糖苷酶酶受體（ ea ）和酶供體（ ed ） ，並利用其-互補功能創立了克隆酶供體免疫分析（ cedia ）技術。
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