角動量極 的英文怎麼說
中文拼音 [jiǎodòngliángjí]
角動量極
英文
pole of angular momentum-
Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account
依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型，對中國古代木結構中的典型構造如：柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究： （一）通過木柱石礎靜摩擦試驗，測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律； （二）通過單柱承載力試驗，測定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量； （三）通過柱架低周反復荷載試驗，測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數； （四）通過斗?低周反復荷載試驗和受壓試驗，測定了古建築木構件與木構件間摩擦系數，斗?抗側移剛度，斗?恢復力特性及滯回曲線，斗?抗壓極限承載力及受力變形規律； （五）通過抬梁式殿堂間架模型振動臺試驗，測定了殿堂木構架結構自振周期，地震反應振形、阻尼特性及阻尼比；按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量，對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。In theoretical analysis, the motion of radially - emitted electron beam in diode region and drift region has been analyzed, and the relation between radial momentum or current of electron beam and the guiding magnetic field has also been studied, then the possibility to optimize the guiding magnetic field has been derived. the motion of radially - emitted beam electrons in smooth bore magnetron and smooth bore milo has also been studied theoretically. at last, the motion of radially - emitted beam electrons in compound axial and azimuthal magnetic field has been studied
在理論分析中，初步分析了軸向發射條件下電子在二極體區域和漂移區的運動規律，電子徑向動量隨著外加磁場變化的規律，以及電子束電流隨著外加磁場的變化規律，還有二極體區域磁場優化的可能性;分別研究了有軸向磁場時以及有角向磁場時徑向發射的電子在光滑陽極結構中的運動規律，最後分析了在軸向和角向復合磁場中電子的運動規律。Under the supervisor ' s instruction, the author, setting out from the angles of e - business status quo in china and the development of international lawmaking of electronic signature, makes a comprehensive research and discusses in depth on legal effect of electronic signature, evidential function of electronic signature, authentication system and the legislation of electronic signature, etc. and draws the following conclusions :. it is necessary to emend the related laws of signing in effect, or to stipulate a new law to establish the legal status and legal effect of electronic signature, to regulate and standardize the usage of electronic signature, so as to promote the e - business in china
作者從我國電子商務的發展現狀及電子簽名國際立法動態的角度出發，在閱讀大量相關文獻、資料、專論的基礎上，積極借鑒國際先進立法實踐及經驗，在導師的指導下，對電子簽名的法律效力、證據力、認證制度及電子簽名立法等法律問題進行了廣泛且有一定深度的探討，並得出如下結論：一、有必要對我國現行的相關簽名法律進行修訂，或另行制定新法，確立電子簽名的法律地位和效力，調整和規范電子簽名的使用，以促進我國電子商務的發展。The effects of the energy, the angular momentum of particles and the mass quadrupole moment on the orbits of particles are discussed
討論了粒子的能量、角動量和質量四極矩對于粒子軌道的影響。The acceptability our rejection and the depiction of some content in the course " mechanisms and machine theory " is discussed, ( e. g., group dividing, solving steps of the graphical method for vector equation, versions and methods for analytical kinematic analysis, inversion design for linkage mechanisms, crank angle between the two limiting positions, design formulae for cam mechanisms, classification of combined mechanisms, formula of the radius of addendum circle of gear, balancing of machinery, etc. ) and some new opinions are presented
摘要就《機械原理》課程的某些內容（如：拆桿組的方法、矢量方程圖解法的解題步驟、運動分析解析法的版本和方法、連桿機構的反轉法設計、極位夾角、凸輪機構設計公式、組合機構的分類、齒輪齒頂圓半徑公式、機械的平衡等）的取捨和敘述進行探討，提出一些新的看法。The study of the effect of the momentun distribution of target nucleons on the scdw calculation is performed, which shows that the larger nucleon momentum compenents affect the double differential cross sections at backward and forward angles, while smaller nucleon momentum compenents affect the cross sections near the qes angle
本文還分析了核子動量分佈對scdw模型雙微分截面計算的影響，發現大動量的核子成分的增加會導致截面計算值在大角度區域和極小角度區域的增大；小動量核子成分的減小會導致截面計算值在準彈性散射角附近的減小。This paper is consisted of two major parts : one deals with the general working performance of the fmghp by setting up mathematic model and developing computer procedure, getting the datum related to the capillary flow and heat transfer, analysing the working characteristics of fmghp in different working temperature, heat flux and inclination angle etc. in this part, the prediction of capillary and boiling limit are also included. the other major part studies the flow and heat transfer characteristics in the micro - film region formed by the meniscus attached on the metalic fin in the micro rectangular groove. investigations on the influence of width of groove and other factors on heat transfer in this region have been made. the importance of this micro - region in the heat transfer of the entire heat pipe has been unveiled. the heat transfer characteristics gotten by this research could be used in design and application and also optimization of this kind of fmghp
本文在大量查閱現有國內外文獻的基礎上，總結並綜合前人有關微槽平板熱管理論研究方面的成果，對單面刻有槽道的微槽平板熱管進行了較為深入和細致的研究。本文的研究共分兩大部分，其中第一部分考察了該型熱管的整體工作表現，通過建立數學模型和開發相應的計算程序，得到了熱管內部毛細流動和傳熱的數據，分析了熱管在不同工作傾角、不同加熱熱流以及不同工作溫度等情況下工作特性的變化規律，考察了汽液界面上的剪切作用對熱管傳熱量的影響，並且進一步在理論上預測了該型熱管的毛細和沸騰極限。The magnetic distribution of a - magnet is presented by analytic way and numeric simulation way. the single particle movement is studied in a - magnet and the movement rule of charged particle in ideal four poles magnetic field also is obtained. quantificational results of the incidence angle, trajectory length and the maximal distance in x direction are presented for ideal trajectory, and the equation indicates some important characters of a - magnet
論文對-磁鐵的有關物理問題進行了較為詳細的論述，從解析形式和數值模擬兩個方面給出了-磁鐵的磁場分佈，對單個粒子在-磁鐵中的運動進行了分析，利用數值求解方法研究了帶電粒子在理想四極磁場中的運動規律，提出了歸一化運動方程和理想軌道等物理概念，定量給出了消色散的入射角、軌道長度和x方向最大距離的解析表達式。In this application, the lorentz force generated by the interaction between the current in the wire and the geomagnetic field produces an electro - dynamic drag leading to a fast orbital decay. in this paper, we make an intensive study of the process of de - orbiting using electro - dynamic tether system. the concrete work includes : firstly, i have studied the basic principle of how to generate the electro - dynamic drag, modeled via accuracy geomagnetism, made a concrete analysis of the de - orbiting duration, the magnitude and direction of electro - dynamic drag under the action of the dipole and accurate geomagnetic models, set up a counterbalance between electro - dynamic torque and gravity gradient torque, emulate the de - orbiting process of spacecraft, and compared the change of six orbital factors and the de - orbiting duration under the action of the dipole and accurate geomagnetic models
本文對基於電動力纜繩的航天器離軌過程進行了深入研究，具體工作如下:首先，本文研究了電動力纜繩產生電動力拉力的基本原理，建立了精確地磁場模型;分別在偶極子模型和精確地磁場模型作用下，對電動力拉力的大小、方向、離軌時間及電動力纜繩傾角的大小進行了計算分析;建立了電動力力矩與纜繩系統重力梯度力矩的平衡關系;分析了電動力力矩為系統提供能量的原理;最後分別在偶極子地磁場模型和精確地磁場模型作用下，對受電動力纜繩作用的航天器的離軌過程進行模擬，分析了在不同精度地磁場模型下，航天器離軌過程中各軌道參數的變化情況，並比較了不同模型對離軌時間的影響。Meanwhile, the composition of the motor system is also given while the motor works as a starter. a mathematics model for doubly salient permanent magnet motor is constructed from the view of conversation of energy. on the base of linear disposal for permanent magnetic flux, some control strategies are put forward such as control mode i, angular advance control mode and control mode ii
首先介紹了所研究的雙凸極電機結構以及電動運行時系統構成情況，從能量守恆的角度構建了永磁式雙凸極電機的數學模型，在永磁磁鏈線性化處理的基礎上提出了控制方式一、角度提前方式、控制方式二等電動運行方式，並建立了各電動運行方式的模態方程，是對雙凸極電機進行進一步研究的基礎。Code division multiple access ( cdma ) communications systems being possessed of the merits of great capacity and soft hand - off and so on must have taken a significant role in future wireless communications systems. because pn sequences used in communications systems are been vertical completely, when numbers of user are more, there are multiple access interference ( mai ) in cdma and serving quality in communications systems is reduced
碼分多址（ cdma ）通信系統以頻譜利用率高、系統容量大、頻率管理容易，軟切換、移動臺發射功率低、通道的傳輸速率高等優點代表了新一代移動通信，在未來的無線通信系統中必將扮演極為重要的角色。Based on a large number of literature references, combining the facts of chinese telecommunication operating enterprises development and the long - term practice of author in telecommunication administrative department, the article expatiates on related theories of strategic management in detail ; analyzes the development status in quo and existing primary problems of chinese telecommunication operating enterprises ; conducts strategic analysis and evaluation to chinese telecommunication enterprises with swot method, and analyzes the trade competition condition of chinese telecommunication operating enterprises from the point of industrial structure ; puts forward generic competitive strategy, stock system reform, multiple operation strategy, marketing strategy, enterprise innovation strategy and multinational operation strategy for choice by chinese telecommunication operating enterprises ; and puts forward strategy implementation measures in three aspects including starting up business process reengineering ( bpr ) as soon as possible, gradually establishing flexible organization under dynamic competitive condition, and actively driving development and management of human resource in knowledge enterprises
本文結合我國電信運營企業發展的實際，及本人長期在電信管理部門工作的實踐，在查閱了大量文獻資料的基礎上，對戰略管理相關理論進行了較為詳盡的闡述；分析研究了中國電信運營企業的發展現狀和存在的主要問題；運用swot分析法對中國電信企業進行了戰略分析與評價，並從產業結構的角度對中國電信運營企業的行業競爭情況進行了分析；提出了可供我國電信運營企業選擇的一般競爭戰略、股份制改造、多元化經營戰略、市場營銷戰略、企業創新戰略、跨國經營戰略；並從盡早啟動企業業務流程重組（ bpr ） 、逐步建立動態競爭條件下的柔性組織、積極推進知識型企業人力資源的開發與管理三個方面，提出了戰略實施的措施。Objects grazing the ergosphere could in some circumstances be catapulted outwards at great speed, extracting energy ( and angular momentum ) from the hole, hence the name ergosphere ( " sphere of work " ) because it is capable of doing work
擦過能層的物體就會在某個情形下以極大的速度彈射出去，從黑洞里提取能量（與角動量） ，因此叫能層（ 「做功的球）因為它有能力作功。It finds extensive applications in science research, engineering design, trail analysis on the criminal investigation spot, online detection automatically, quality control, machine vision, medicine diagnosis and etc. this thesis analyzes and summarizes the domestic and international researchers ’ work about stereo vision, and then concentrates on the research on some key techniques of stereo vision, such as camera calibration, corner detection, 3 - d matching and 3 - d reconstruction
隨著科學技術和工業生產的發展，三維形面測量在現代工業及實際生產中起著越來越重要的作用，在科研、工程設計、刑事偵查現場痕跡分析、自動在線檢測、質量控制、機器視覺、醫學診斷等方面有著極其廣泛的應用前景。本文在分析和總結了當前國內外立體視覺研究工作的基礎上，針對其中的攝像機標定、角點檢測、立體匹配和三維重建四個關鍵技術部分開展研究，其主要成果如下: 1 .提出了一種改進的攝像機標定方法。We presented the theoretical model of collisional quantum interference on rotational energy transfer in atom - diatom system, using the theories of time dependent born approximation and quantum inelastic scattering, and taking into account the long - range interaction potentials. the key factors in the determination of the differential and integral interference angles are obtained. co a1 ( v = 0 ) ~ e3 - ( v = l ) system in collision with he is calculated, the calculated values are consistent with the experimental results, but for the partners being ne and ar, the calculated values are not so good
首次得到了從理論中計算干涉相位角的方法，得出了干涉相位角和實驗條件中各相關量的關系，並計算了coa ~ 1 （ v = 0 ） e ~ 3 ~ - （ v = 1 ）和he碰撞誘導轉動能量傳遞過程中量子干涉效應的實驗，計算結果和實驗符合的很好，但是對于碰撞伴是ne和ar的實驗，計算結果不是很好，原因是隨著碰撞伴質量和極化率的增大，相互作用勢更強，應該考慮短程相互作用勢的貢獻。Now the electrical power system is developing the big and gigantic scale dynamo on the base of saving the energy and reducing the wastage, but on the base of protecting environment, from now on the small and the middle water electric power will be developed, so the auto excitation regulator fit for the small electrical power has the great market potentialities
雖然目前電力系統從節能降耗的角度正積極發展大型機組、巨型機組，但從積極發展小型電站和增強環保意識的國策上看，今後小水電、中小型熱電廠將大量發展，因此對高性能的實用於小型機組的自動勵磁調節器具有巨大的市場潛力。The results indicate that the value of squeezed component of the atomic dipole, squeezed frequency, amplitude and squeezed direction of the atomic information entropy ca be controlled by choosing the atomic initial state, the velocity of atomic motion, the field structure and the squeezing factor of field and the squeezing phase angle of the field, respectively
結果表明，通過選擇原子初態，原子運動速度、場模結構，場壓縮因子和場壓縮相位角可以分別控制原子信息熵壓縮的偶極矩分量值、壓縮頻率、壓縮幅度和壓縮方向。Through the analysis, the paper reaches the following basic conclusions : the quantity of chaoyang district ' s transient population will increase continuously, residential period will prolong gradually and renting house will still be the major residential way of transient population ; transient population play a positive role in the district ' s socioeconomic development, but on the other side they make city infrastructures more difficult to bear the existent heavy burden, difficulty in city management is increased ; transient labor force mainly undertake the supplementary role of the district labor force, but along with the open of the labor force market step by step and the further improving of the quality of transient labor force, the competition between transient labor force and local labor force tends to be intense ; the current management policy of transient population in beijing exists some problems, which stresses management and makes light of service, stresses duties and makes light of rights and interests, stresses planning and makes light of market, stresses outside and makes light of inside, but the policy is tending to the developing direction that is helpful for transient population to flow
最後總結了本研究的基本結論，並從外來人口管理體制及制度創新、管理措施的改進和維護外來人口權益，健全社會保險體系三方面提出了改革建議。文章通過分析得出以下基本結論：朝陽區外來人口的數量還會繼續增長，居住時間逐漸延長，租住房屋仍然是外來人口最主要的居住方式；外來人口在為本區社會經濟發展起到積極作用的同時，也使城市基礎設施不堪重負，城市管理難度加大；外來勞動力主要承擔著本區勞動力的補充角色，但隨著勞動力市場的逐步開放和外來人口素質的進一步提高，外來勞動力與本地勞動力的競爭趨于激烈；北京市現行的外來人口管理政策存在著重管理而輕服務、重義務而輕權益、重計劃而輕市場、重外部而輕內部的問題，但正趨于有利於外來人口流動的方向發展。The explicit method is widely used for its simpleness and little memory consumed with local time step and variable coefficients implicit residual smooth to accelerate the convergence procedure. according to yoon and jameson ' s ideas, an efficient implicit lu - sgs algorithm is carefully constructed by combing the advantages of lu factorization and symmetric - gauss - seidel technique in such a way to make use the l and u operators scalar diagonal matrices, thus the numeric algorithm requires only scalar inversion. the computational efficiency is greatly improved with this scheme
顯式方法具有簡單，消耗內存小等優點，並採用當地時間步長、變系數隱式殘值光順等加速收斂措施，在定常流動的模擬中得到了廣泛的應用;根據yoon和jameson提出的簡化正、負矩陣分裂，構造的l 、 u運算元只需進行標量對角陣求逆，極大提高了流場數值求解過程的計算效率;採用newton類型的偽時間子迭代技術使時間推進精度提高至二階。Fast and high - quality document clustering algorithms play an important role towards this goal as they have been shown to provide both an navigation / browsing mechanism by organizing large amounts of information into a small number of meaningful clusters as well as to greatly improve the retrieval performance either via cluster - driven dimensionality reduction or term - weighting
快速和高質量的文本聚類技術在實現這個目標過程中扮演了重要的角色。通過將大量信息組織成少數有意義的簇，這種技術能夠提供導航瀏覽機制，或者，通過聚類驅動的降維或權值調整來極大地改善檢索性能。分享友人