物理驅動力 的英文怎麼說

中文拼音 [dòng]
物理驅動力 英文
physical driving force
  • : 名詞1 (東西) thing; matter; object 2 (指自己以外的人或與己相對的環境) other people; the outsi...
  • : Ⅰ名詞1 (物質組織的條紋) texture; grain (in wood skin etc ) 2 (道理;事理) reason; logic; tru...
  • : 動詞1. (趕) drive (a horse, car, etc. ) 2. (快跑) run quickly 3. (趕走) expel; disperse
  • : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
  • 物理 : 1. (事物的內在規律) innate laws of things2. (物理學) physics
  1. Many planets ( for example, ganymede, mercury, the earth, jupiter and saturn ) and stars ( for example, the sun ) possess intrinsic magnetic fields. the explanation for their existence and variation remains a great challenge to planetary scientists and astrophysicists. this article attempts to review some recent developments and difficulties in the study of magnetohydrodynamics for the electrically conducting fluid interiors of planets and stars. it is the fluid motions, usually driven by thermal convection, that generate and sustain magnetic fields through magnetohydrodynamic processes in planets and stars. in planets, the magnetohydrodynamic processes are strongly affected by the combined and inseparable effects of rotation, magnetic fields and spherical geometry. the key dynamics involves the interaction between the coriolis and lorentz forces. in the sun, it is the solar tachocline, a thin shear flow layer located at the base of the convection envelope, that plays an essential role in the solar magnetohydrodynamic processes which produce the 11 - year sunspot cycle. some results of a new nonlinear three - dimensional solar dynamo model are also presented

    許多行星(如木衛三,水星,地球,木星和土星)和恆星(如太陽)具有內部磁場.對這些磁場的存在和變化的解釋對行星科學家和天體學家是一個巨大的挑戰.本文試圖總結行星和恆星的導電流體內部磁流體學研究的新近發展和困難.一般由熱對流的流通過磁流體學過程產生並維持在行星和恆星中的磁場.在行星中磁流體學過程強烈地受到轉,磁場和球幾何位型的綜合影響.其學的關鍵方面涉及科里奧利和洛倫茲間的相互作用.在太陽中其流線,即處于對流層的薄的剪切流層在太陽的磁流體學過程中扮演了一個基本的角色,並由之產生了11年的太陽黑子周期.本文也給出了一個新的非線性三維太陽發電機模型
  2. This study run through the basic idea of ecoregional approach methodology and systematic design by integrating agronomy, ecology, environmental economics, resource economics and maths. the study methods included macro - and micro - analysis, qualitative and quantitative analysis, theoretical and case study, statistical analysis and model simulation and so on. resources shortage and environmental pollution casued by intensive agriculture were examined for a specific suburban area shunyi district beijingissues were systematically analyzed including landuse changes, landuse driving force, water - limited yield simulation with wofost model, ecological, environmental and economical analysis of landuse, as well as optimizing pattern of landuse with rcsadss model

    本研究立足於生態區域法的基本思路,採用系統設計的思想,通過農學、生態學、環境經濟學、資源經濟學、數學等多學科的交叉與融合,宏觀與微觀、定性與定量、論與實證研究等相結合的方法,運用統計分析、模型模擬等技術手段,在大量調研基礎上,針對目前大城市郊區農業用地中存在資源短缺、環境污染等問題,以北京市順義區為典例,從土地利用現狀與態、、 wofost模型產量模擬、生態環境經濟分析及種植業結構優化模式等方面進行了系統研究,獲得如下研究結果: ( 1 ) 2002年順義區的土地利用仍以農業用地為主,耕地、園地、林地和牧草地之和占總土地面積的56 ,農用地中糧食作仍佔43 。
  3. Based on the hydrodynamic energy transport model, the influence of variation of negative junction depth caused by concave depth on the characteristics of deep - sub - micron pmosfet has been studied. the results are explained by the interior physical mechanism and compared with that caused by the source / drain depth. research results indicate that with the increase of negative junction depth ( due to the increase of groove depth ), the threshold voltage increases, the sub - threshold characteristics and the drain current driving capability degrade, and the hot carrier immunity becomes better in deep - sub - micron pmosfet. the short - channel - effect suppression and hot - carrier - effect immunity are better, while the degradation of drain current driving ability is smaller than those with the increase of depth of negative junction caused by source / drain junction shallow. so the variation of concave depth is of great advantage to improve the characteristics of grooved - gate mosfet

    基於能量輸運模型對由凹槽深度改變引起的負結深的變化對深亞微米槽柵pmosfet性能的影響進行了分析,對所得結果從器件內部機制上進行了討論,最後與由漏源結深變化導致的負結深的改變對器件特性的影響進行了對比.研究結果表明隨著負結深(凹槽深度)的增大,槽柵器件的閾值電壓升高,亞閾斜率退化,漏極減弱,器件短溝道效應的抑制更為有效,抗熱載流子性能的提高較大,且器件的漏極的退化要比改變結深小.因此,改變槽深加大負結深更有利於器件性能的提高
  4. Brief introduction the model kx920 wheel is one of the series leading products made in our works that is well received both at home and abroad for its reaso - nable design, beautiful contour, and advanced norms. by adopting of three - ele ment torque converter, fixed - axle type pcwer shifing transimission box, in = bub reduction, double - axle drive, hinged frame, all hydraulic steering, and clamping brade. the loader has such features as : large power reseve, fi - neaccelerating performace, comfortable operation, wide field of vision, it " s muti = function, high - effic ient and flexible engineering machinery. mor - eover, it can be equipped with many kinds of working attachments such as flat fort, muti - fnction bucket, and snow plow, so it may be used for loading and unloading, transporting, piling and leveling materials in various kinds of projects. mines, enterprises and city. welcome friends both at ho - me and abroad to visit our factory and to order our products

    Kx920裝載機是我公司生產的系列主導產品之一,該機設計合,外形美觀,指標先進,在國內外享有盛譽.它選用三元件液變矩器,定軸式換檔變速箱,輪邊減速,雙橋,鉸接式車架,全液壓轉向,汽液鉗盤式四輪制,手鉗盤式停車制,反轉連桿機構,儲備大,加速性能好,駕駛舒適,視野寬廣,是一種用途廣,效率高,機靈活的工程機械.備有平叉,圓木叉,多用途斗,推雪板,側翻,抓草機等多種工作裝置,因此廣泛用於各類工程,工礦企業和城鎮的料,垃圾裝卸,運輸,堆垛,平整等作業,歡迎國內外朋友們來公司參觀,選購
  5. A general stack equation of mobile robot based on analyzing the motion of planar motion object and the mathematical models of four different kinds of common wheels is developed, accordingly, the mobility of mobile robot is addressed and the forward and inverse solutions to speed for specific configuration driven by differential speed are derived. utilizing the muir and newman convention, the description of the posture transformation matrices between different coordinate frames and the solution for the speed of point located on these frames are introduced. according to posture estimation, a more accurate method, dead reckoning algorithm, is developed for a specified configuration characterized by differential speed motorization, and simulations of this algorithm and other traditional methods are carried out using matlab while traversing a circular path

    本文對兩輪差速機器人的運學及其本體緩沖設計進行了探討,在對平面運體運分析的基礎上結合四種常用車輪的數學模型,推導出了一個通用的移機器人堆積方程,在此基礎上分析了移機器人的移、並針對兩輪差速構型推導了速度正解與逆解;使用muir和newman的運學建模方法,推導了移機器人上點及連桿坐標系位姿、速度變換關系矩陣及求解方法;在移機器人位姿識別方法中結合差速構型對航位推演算法進行了分析:推導了一種論精度較高的航位推算演算法,並使用matlab對其與傳統的推算演算法在跟蹤圓弧軌跡情況下進行了模擬;最後針對本文所研究的機器人給出了一種比較系統、可靠的緩沖結構設計思路,較好地解決了移機器人作業過程中外界因素及本身設計中引入的各種不確定誤差問題;本論文研究成果已在本實驗室所開發的樣機上得到實現,經過應用與考核證明其中的分析與設計是切實可行的。
  6. So we invented this mixed controller. it was consisted of an intelligent voltage transfer, a single - microcomputer control centre, and circuits for driving motors. its principle was used sensors to measure the weight of materials. then sensors converted the weight to electrical signal. passing the transfer the signal processed by the sing - microcomputer controlled the drivers of motors working

    智能配料控制器主要由智能變送器、單片機控制器、電機電路等組成,主要工作原是用壓傳感器進行料的重量測量,傳感器把料的重量轉換成電信號,經變送器把信號送入單片機進行處,再由單片機發出料已稱足重量的信號去控制送料和卸料電機工作,同時單片機還可與pc機進行串聯通信,實現微機集成控制。
  7. Pcr analysis indicated that all lines had been integrated of ssmapkk. northern analysis revealed the presence of expression of ssmapkk mrna in transgenic lines. in principle, ssvp overexpression can increase proton electrochemical gradients across the vacuolar membranes, which permit the secondary active transport of na + and solute molecules

    論上, ssop的過量表達可增加轉基因植株細胞跨液泡膜的質子電化學梯度,為次級轉運提供,從而增加可溶性質和na十向液泡內的轉運,提高轉基因植株的抗旱和抗鹽性。
  8. The properties of cn thin films such as their morphology, component, crystal structure and the bonding structure and the relation between those properties and the gas - phase reaction parameters were discussed, showing that the deposition of p - c3n4 thin film is the compete result of various reaction processes in the dynamics balance conditions ; the process of cn films depo sition is diagnosed in situ through the optical emission spectra technique, the effects of experimental parameters on the concentration of the precursors and the gas - phase reactions in the plasma have been obtained ; the main reaction precursors for film deposition identified ; the relation between the characteristics of cn thin films and the reaction process in the plasma is analyzed. the cn thin films deposition under different substrate temperatures in high pressure pe - pld shows that the si atom of the substrate has participated the cn films growth process, based on this the growth mode of cn thin films on the si substrate is proposed. the further experiment of cn thin films deposition on si substrate scratched by diamond as well as covered with fe catalyzer has been attempted, which indicates that changing the dynamics conditions of the surface reaction can alter the growth characteristic of the cn thin films and can enhance obviously the films growth rate

    採用pld技術進行了碳氮化合薄膜沉積,得到了含氮量為21at的cn薄膜;研究了襯底溫度和反應氣體壓強對薄膜結構特性的影響,給出了cn薄膜中n含量較小、 sp ~ 3鍵合結構成分較少和薄膜中僅含有局域cn晶體的原因;引入脈沖輝光放電等離子體增強pld的氣相反應,給出了提高薄膜晶態sp ~ 3鍵合結構成分和薄膜的含n量可行性途徑;應用pe - cvd技術以ch _ 4 + n _ 2為反應氣體並引入輔助氣體h _ 2 ,得到了含n量為56at的晶態cn薄膜;探討了cn薄膜形貌、成分、晶體結構、價鍵狀態等特性及其與氣體壓強和放電電流的關系,證明了- c _ 3n _ 4薄膜沉積為滿足學平衡條件的各種反應過程的競爭結果;採用光學發射譜技術對cn薄膜生長過程進行了實時診斷,得到了實驗參量對等離子體中活性粒子相對濃度和氣相反應過程的影響規律,給出了cn薄膜沉積的主要反應前,揭示了cn薄膜特性和等離子體內反應過程之間的聯系;採用高氣壓pe - pld技術研究了不同襯底溫度條件下cn化合薄膜的結構特性,揭示了si原子對薄膜生長過程的影響,給出了si基表面碳氮薄膜的生長模式;在金剛石研磨和催化劑fe處的si襯底上進行cn薄膜沉積,證明了通過控制材料表面學條件可以改變碳氮薄膜結構特性,並可顯著提高晶態碳氮材料的生長速率。
  9. The electro - hydraulic load simulator of fin stabilizer is physical half - objective simulative system. its function is to simulate, under laboratory conditions, different kinds of hydrodynamic force exerted on the fin stabilizer so as to detect technical performance index of the driving system of fin stabilizer. thus the classical self - destructing all - objective experiment will be converted to half - objective forecasting experiment in laboratory to achieve the aims such as shortening lead time, saving developing funds, enhancing reliability and success proportion

    減搖鰭電液負載模擬臺是一種半實模擬系統,其功能是在實驗室的條件下,模擬船舶航行過程中減搖鰭所受的海浪水載荷譜,從而檢測減搖鰭系統的技術性能指標,將經典的自破壞全實實驗轉化為在實驗室條件下的半實預測性實驗,以達到縮短研製周期、節約研製經費、提高可靠性和成功率的目的。
  10. Zheng, h. n. and wang, s., 1992, magnetic reconnection in the earth ' s distant magnetotail ( ii ) effects of local driven force, chinese j. geophys., 35, 457

    鄭惠南,王水, 1992 ,地球遠磁尾中的磁場重聯( ii )局地的影響,地球學報, 35 , 667
  11. The ntu " khpi " scientific schools are known beyond the boundaries of the country primarily thanks to such scientific chairs as metals physics, high technologies of metal working, electric drive, internal combustion engines, tank - building, ceramics and composites, synthesis of nitric acid, oil fuel, electric chemistry, space apparatus control systems, industrial and medical electronics, information equipment, control systems and so on

    哈爾科夫工業大學享有較高的國際聲譽,主要是由於其在金屬學研究,金屬處,電,內燃機,坦克製造,制陶和復合材料,氮酸合成,燃油,電化學,空間裝置控制系統等高新技術方面。
  12. Utilizing their shape memory effect ( sme ), titanium - nickel ( tini ) shape memory alloy ( sma ) films have the potential to become high performance actuating materials for microelectromechanical systems ( mems ) due to their ability to generate large forces with large power - to - volume ratio, high recoverable strain, low power consumption, biocompatible property, and long lifetime

    利用其形狀記憶效應原, tini形狀記憶合金( sma )薄膜以其大的輸出和變位、高的功率密度、良好的生相容性、低功耗以及長壽命,有望成為微機電系統( mems )中高性能的微材料。
  13. The zijinshan fluid system and the gonglang fluid system were driven by the stress of extrusion nappe onto the basin and the thermal driving force of magmatism. when the fluids cycling in the basin encountered the boundary of reduction - oxidation or underwent fluid mixing, phase separating and fluid boiling caused by fault - induced pressure reducing, the physical chemistry condition abruptly changed and mineralization then took place

    在盆地兩側擠壓推覆構造應及巖漿作用熱下,紫金山背斜和公郎弧兩大流體系統的流體在盆地中運,當遇到氧化還原界面或遭受流體混合、相分離及斷裂導致的減壓沸騰時,因化學條件發生重大變化而導致成礦作用的發生。
  14. On the basis of this, the paper puts forward and creates three model of land resources allocation with sustainable development, which is material model according to theory of extenics, land use basic competition model according to land income border effect theory and macro analysis model according to land use veriety motive power theory. the author hope this paper can supply scientific and useful thoughts and methods for carrying out land resources allocation with sustainable development

    在此基礎上,提出並構建了可持續發展的土地資源配置的三種模型,即依據可拓學原元模型、依據土地收益邊際效用原的土地利用基本競爭模型和依據土地利用變化的宏觀分析模型,希望能夠為實施可持續發展的土地資源配置提供科學適用的思路和方法。
  15. State observer is a realizable dynamic system in practice. it is driven by the input signal and output signal of the observed system. its output can trace the state variable of the observed system properly

    所謂狀態觀測器就是一個在上可以實現的系統,它在被觀測系統的輸入輸出信號的下,產生一組輸出,使得該輸出能夠很好地逼近被觀測系統的狀態變量輸出。
  16. This task intent to establish the warehouse logistics management information system and decision - making system, which aims at improving the response speed and emergency ability, reducing the inventory cost and increasing economy benefit, which is on the basis of information technique, computer technique and advanced management conception, which is droved by costumes, of which the order management, program management and warehouse management are the main content

    本課題研究的目的是結合華中流快運公司倉庫的實際情況進行庫場流系統分析和優化,建立一個以加快響應速度、降低庫存成本、提高經濟效益和應變能為主要目的;以信息技術、計算機技術和先進的管思想為基礎;以客戶要求為;以定單管、計劃管、倉庫管等為主要內容的具有開放系統結構的易於維護的庫場流管信息與決策支持系統。
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