正性變時作用 的英文怎麼說

中文拼音 [zhēngxìngbiànshízuòyòng]
正性變時作用 英文
positive chronotropic action
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  1. Collisonal quantum interference ( cqi ) was observed in the intramolecular rotational energy transfer in the experiment of the static cell, and the integral interference angles were measured. to observe more precise information, the experiment in the molecular beam should be taken, from which the differential interference angle can be obtained precisely. in this paper, the theoretical model of cqi is described in an atom - diatom system in the condition of the molecular beam, based on the first - born approximation of time dependent perturbation theory, taking into accounts the anisotropic lennard - jones interaction potentials. the method of observing and measuring correctly the differential interference angle is presented. the changing tendencies of the differential interference angle with the impact parameter, velocity, and et al. are discussed

    分子內部轉動傳能的靜態池實驗觀察到了碰撞量子干涉效應（ cqi ） ，並且測得積分干涉角，為了獲得更加精確的分子內部轉動傳能的碰撞量子干涉效應信息，實驗就必須要採用分子束實驗進行.本文理論上採用各項異性相互作用勢，應用含時微擾理論的一級波恩近似，假想在分子束實驗的條件下，建立在原子-雙原子分子體系中碰撞量子干涉的理論模型.理論上推導出微分干涉角具體表達式，通過計算定性地討論了微分干涉角隨著碰撞參數、速率等的變化趨勢，同時初步探討了實驗的正確觀測途徑，得出了採用分子束進行實驗觀測的實驗方法，為進一步進行分子束實驗提供了理論基礎，對實驗的進行起到了一定的借鑒作用
  2. The equations of motion governing the axisymmetric elastic deformation of finite orthotropic cylindrical shells, involving the effect of transverse shear and rotational inertia, are derived. by applying the reverberation method, the displacement and the resultant forces of the shell in the phase space are expressed. then the transient waves in the finite orthotropic cylindrical shell subjected to the axisymmetric impact are obtained by using inverse laplace transforms. furthermore, the transient solutions are decomposed to the generalized ray integrals and computed numerically

    分析了計及剪切變形和轉動慣性的有限長正交異性圓柱殼中彈性瞬態波的傳播問題，採用回傳矩陣法，在相空間中給出了位移和內力的表達式。再利用laplace逆變換，得到正交異性圓柱殼受軸對稱沖擊作用時彈性瞬態波解，然後將其分解為若干廣義射線積分之和，並用數值方法求解之。
  3. Based on the fem program on fracture of plane structure developed by professor fu xiaoling of ho hai university, a two demension damage and fracture finite program package which is programed in fortran 90 language is developed. the paper adopts the plane - eight - nodes isoparameters element and compute the developing law of the damage and macro - damage of plane structure under load. considering the original damage and tension and compression damage at the same time, the paper adopts the more reasonable concrete constitute relation of two demension and exponent function model

    在河海大學符曉陵副教授所編制的平面結構斷裂有限元程序（ dl08p4 ）基礎之上，本文用fortran90語言編制的二維損傷-斷裂有限元程序包，程序採用平面八結點等參數單元分析計算平面結構在外荷載作用下損傷及宏觀裂縫的發展規律，考慮了混凝土結構體內存在著初始損傷和同時存在的拉、壓損傷，並且採用更為合理的具有損傷含義的混凝土二維本構關系（即正交異性損傷模型中的本構方程）和指數函數模型建立的並可進行拉、壓損傷可比性換算的損傷演變方程，較為真實地反映了實際情況。
  4. The degradation of the electrical characteristics in sic pn junctions irradiated by neutron is attributed to the recombination centers and the electric field effect on the thermal emission of traps within the depletion region. the relationship of the ideality factor to the applied voltage is theoretically studied

    提出了中子輻照下sicpn結電特性退化的新的理論， pn結耗盡區中的輻照陷階在耗盡區電場的作用下熱發射效應得到加強，從而導致pn結正偏和反偏時的復合電流和產生電流的改變。
  5. Considering the similitude law for shaking table test, we study the test results and obtain some conclusions which are a ) generally, the silty soil in test box liquefies and the liquefied time has relation with the amplitude of acceleration, b ) when the intensity is on and above eight degree, the silty soil deposit will be liquefied dramatically, c ) the relationship of the pore water pressure is relevant to the cycle loading which represents when the cycle loading ranges from little to great, the relationship is represent as a concave curve, or else as a protruding curve and tends to stability. ( 3 ) based on the triaxial compression test and the resonant column test, some studies are made such as a ) the duncan - chang parameters of constitutive model, b ) the dynamic shear modulus ratio and c ) the damping ratio of the site soil deposits. in order to deal with the test data, a computer program is compiled

    （ 2 ）利用小型振動臺進行了k _ 0固結狀態下粉土的振動液化模擬研究，通過分析正弦荷載作用下的試驗資料，驗證了粉土的孔隙水壓力增長模式的合理性；從微分方程推導了基於土體振動臺模型試驗的相似律，並從模型實體、孔壓時程曲線和相似律等方面做出了分析，得出了如下結論：在小型振動臺試驗中，模型箱中的粉土都發生了液化，液化的時刻和輸入加速度幅值有關，而對頻率的變化不太敏感；粉土在相當於8 9度地震烈度的加速度幅值作用下可能產生嚴重的液化；孔壓的增長曲線形狀與施加的荷載有關：當施加荷載為由小到大的形式時，曲線形狀為上凹的曲線；當施加荷載為等幅的正弦荷載或荷載幅值由大到小時，曲線形狀為上凸的曲線，且逐漸趨于穩定。
  6. The future wireless mobile communication systems are expected to provide ubiquitous, high - quality, and high - rate mobile multimedia transmission. however, hostile multipath fading radio conditions give rise to serious inter - symbol interference ( isi ) ; even worse, wireless channel are often time varying, which makes the system more vulnerable and more difficult to track the channel state. orthogonal frequency dvision multiplexing ( ofdm ), which is inherently resistant against isi, has invoked a popular research interest in recent years, and has been a promising candidate technology of the physical layer for future weideband high - date - rate wireless communications. notwithstanding, ofdm is much more vulnerable to errors of both time and frequency synchronization and to that of channel estimation, and how to obtain correct timing and channel estimation efficiently is highly critical to ofdm systems. the dissertation will focus on both of the aspects of ofdm systems mentioned above

    但是無線環境的多徑特性造成通信系統中嚴重的符號間干擾，同時無線通道的時變性使得通道特性跟蹤復雜。而正交頻分復用技術（ orthogonalfrequencydivisionmultiplexing ， ofdm ）正是一種解決符號間干擾的有效傳輸手段，因此ofdm技術作為未來寬帶高速率無線通信的物理層候選技術在當前引起了一股研究熱潮。但ofdm系統對定時同步誤差和通道估計誤差非常敏感，如何在ofdm系統中準確快速地實現符號同步和通道估計是至關重要的，本論文將重點針對這兩個問題進行討論。
  7. Several new physics experiments in 1998 were performed and analyzed to showthe subtlety of quantum theory, including the “ wave - particle duality ” and the nonseparability of two - particle entangled s tate. here it is shown that the measurement is bound to change the object by dest roying the original quantum coherence between the object and its environment. so the “ physical reality ” should be defined at two levels, the “ thing in itself ” and the “ thing for us ”. the wave function in quantum mechanics is just playing the role for connecting the two levels of matter via the fictitious measurement

    在1998年完成和分析的幾個新的物理實驗顯示了量子理論的微妙性，包括「波粒二重性」以及二粒子纏結態的不可分性.本文的分析表明：測量在破壞原來存在於客體及其環境間的量子相干性時必然要改變客體.因而「物理實在」應在兩個層次上定義： 「自在之物」與「為我之物」 .量子力學中的波函數則正起了通過「虛擬的測量」將這兩個層次的物質聯系起來的作用
  8. Abstract : several new physics experiments in 1998 were performed and analyzed to showthe subtlety of quantum theory, including the “ wave - particle duality ” and the nonseparability of two - particle entangled s tate. here it is shown that the measurement is bound to change the object by dest roying the original quantum coherence between the object and its environment. so the “ physical reality ” should be defined at two levels, the “ thing in itself ” and the “ thing for us ”. the wave function in quantum mechanics is just playing the role for connecting the two levels of matter via the fictitious measurement

    文摘:在1998年完成和分析的幾個新的物理實驗顯示了量子理論的微妙性，包括「波粒二重性」以及二粒子纏結態的不可分性.本文的分析表明：測量在破壞原來存在於客體及其環境間的量子相干性時必然要改變客體.因而「物理實在」應在兩個層次上定義： 「自在之物」與「為我之物」 .量子力學中的波函數則正起了通過「虛擬的測量」將這兩個層次的物質聯系起來的作用
  9. Some factors that exited in contemporary huizhou block some young people in huizhou from continuing their study after finishing nine - year compulsory education, these factors involved lack of educational funds, the values that men are superior to women and the influence of parents who think " it is no use studying " on their children. through comparison between the traditional and contemporary education, we find some new problems that existed in the present education of huizhou, and this article tries to pose some suggestions to solve these problems. first, strengthen the function of fundamental organizations of rural community, that is, with the aid of non - profit organizations, the community can develop kinds of rural education, and local political and economic organizations should provide support and encouragement in spiritual and material for the development of local education

    本文通過傳統與當代徽州教育及教育價值觀念的比較，從經濟、政治方面對其變遷進行社會學的思考，並試圖提出發展當代徽州農村社區教育的對策與建議： 1 、強化農村社區基層組織的功能：藉助社區事業組織開展多種樣式的鄉村教育，同時，社區政治組織、經濟組織應為當代徽州農村社區的教育發展提供物質上和精神上的支持和鼓勵； 2 、通過對崇文重教行為的宣傳，發揮大眾傳播媒介對人們正確價值觀的樹立及活動的導向和暗示作用，以促進當代徽州農村社區教育文化的建構； 3 、發展農村社區職業教育，興辦一些鄉村手工業技術培訓班，為山區的副業就地開辟一條新路，並充分發揮社會教育的作用，使徽州農村教育社會化與農村社會教育化統一併融合起來，實現徽州農村社區教育與社會的良性互動。
  10. The sequence of two patterns presence is changed alternately, that is, one pattern will appear at the second pulse of total pattern in this half cycle if it appears at first pulse in last half cycle. the stability of square pattern was studied by considering the interaction among the wall charges. the discharge moments of individual filament alternate from long one to short in the square pattern, which can been explained by using the breakdown and quench model through considering the wall discharge accumulated on the dielectric layers

    實驗研究了正方網格斑圖與混合氣體的比例及外加電壓的關系，給出了班圖類型隨上述條件變化的相圖；實驗採用光學方法對正方網格斑圖進行了時空動力學測量，發現正方網格斑圖是由兩套正方網格斑圖相互嵌套而成，其中一套的微放電絲位於另一套正方形單元的中心，這兩套微放電絲交替進行放電；考慮到壁電荷之間的相互作用，研究了正方網格斑圖的穩定性；實驗發現正方網格斑圖的微放電絲放電時間間隔是長短交替變化的，考慮到電介質表面積累的壁電荷的作用，使用擊穿?熄滅方程很好的解釋了該現象。
  11. The article intend to analysis the precess, character and motivion of development in traditional street space in which contain abundant cultural heritage. through investigation the writer should analysis the characte r, form and the relationship with each other, and furthermore find the pattern of the space in the fulture. what the most important is to summarize the spitits in traditional street space, such as activition, fuction, cultural elements, social customs and quatity of space. in order to put these elements to the exploit of new street space and find how these elements should be used, the writer regards some streets as the examples such as wenming street in kunming, xinhua street in lijiang jianshe rode in luxi. through research the writer find problems which exist in not only traditional but also in new street and express individual viewpoint about how to solve the problems. there are several ways to keep the new street exploition success. in the first place, we shoule know about all kinds of influences and synthesized elements. secondly mastering the mechanism of the development by oneself is indispensable. in the last place, it is necessory not to imitate some certain model which is plausible in other place. in the l ast of the article, the writer uses a new project to further illustrate the way to put the theory what have mentioned above into the practice

    並從自然，社會，經濟及社會文化方面分析產生的根源，發展動力，其次通過實際調查，對現有傳統商住的物質形態要素進行分析，從商空間及住空間的基本特徵，型制入手，探索傳統商住街區的空間形態，結構組成，商與住空間關系，空間性質及空間如何相互轉化。以此來尋找傳統商住街區物質形態特徵，同時結合具體實例強調在傳統商住街區改造、新區的規劃設計中應當重視非物質要素內涵的提取、如活動者及社會結構、功能意義、空間品質、文化氣息，保持歷史傳統的延續性的必要性與可行性。在文章的後半部分，有針對性的對遺留下來的傳統商住街區-昆明文明街、麗江新華街、瀘西建設路的物質形態特徵和非物質形態特徵的分析，找出現存的問題，並針對問題發表個人的觀點，指出引導現代商住街區的開發與改造中，保持形態合理發展的正確途徑是了解影響形態發展與演變的各種因素及其綜合作用，把握好形態演交的內在機制，而不應刻意追求某種特定的模式。
  12. Followed this purpose, the paper used the orthogonal design method, combined the materials and the mathematical statistics knowledge, analyzed the range of intensity and anti - frozen as well as action mechanism contrastively under the single factor function and the multi - factors correlation. proposed that when we mixed two or more extra materials into concrete, we cann ’ t purely increase the quantity of the one to enhance some concrete ’ s performances, which guided by the single factor function. on the contrary, we determined the quantity of this kind of extra material must by the conclusion of specific experiment under the multi - factors correlation

    圍繞這個目的，論文採用正交設計方法，結合材料學和數理統計學知識，對單因素作用下和多因素交互作用下混凝土強度及抗凍性的變化幅度及作用機理進行了對比分析，提出在混凝土中摻入兩種或兩種以上外摻料時，不能單純以單因素作用下的實驗結果作為指導，用提高某一種外摻料的摻量來改變混凝土的某項性能時，必須以具體試驗得出的結論來判定該種外摻料的用量。
  13. Total factor analysis of health production function indicates that there has been great changes in influential factor of the health since the open and reform policy was implemented : ( 1 ) economic factors promote the development of health ; ( 2 ) urbanization improves the health, but the increase of female proportion reduces the health level ; ( 3 ) in the sanitation factors, the increase of doctors reduces the health, the elasticity of the sickbeds is negative ; ( 4 ) education significantly improves the health ; ( 5 ) the living factors exhibit certain negative contribution to health

    全因素分析表明，改革開放后，健康的影響因素發生了深刻的變化： （ 1 ）經濟因素對健康具有促進作用； （ 2 ）社會因素中，城市化率提高促進了健康的改善，女性比例的提高反而降低了健康水平； （ 3 ）衛生因素中，醫生和門診的增加引起健康水平總體下降，而病床數起到了改善健康的作用，疾病預防對健康正貢獻的時滯性減弱； （ 4 ）教育因素對健康的促進作用明顯； （ 5 ）生活因素對健康表現出一定的負貢獻。
  14. In this paper i calculate the reasonable possession quantity of port handling machineries with chance - constrained linear programming. first in the paper is the background and meaning of this research ; then analysis present situation of port machinery management both in practice and theory ; in chapter 3, i qualitatively discusses characters influencing machinery quantity, which include lifting ton, intact rate and using rate, age of machinery, machinery purchase and working cost and so on. in chapter 4, i take the influencing characters to mathematic model of chance - constrained linear programming, aiming to maintain the need of production and reduce machinery cost

    文章首先介紹了選題的背景、意義以及主要工作；第2章介紹了港口機械管理在港口企業管理中的地位與作用，以及我國港口機械設備管理與配置現狀，並簡要介紹目前港機合理擁有量的理論研究方法；第3章從技術與經濟角度定性分析了各種因素對港機擁有量的影響，其中主要包括機械起運量、完好率與利用率、機械設備役齡、購置與營運成本等；第4章將各種影響因素引入模犁，提出以完成生產任務、機械成本最低為目標，應用隨機線性規劃模型計算港口流動機械合理擁有量的方法；第5章以大連港大港區為例對模型進行應用，選擇四種型號叉車為研究對象，對其歷史經濟與技術數據進行統計分析，其中重點對隨機變量單位臺時維修費用進行了正態分佈擬合。
  15. We deduce easily the coherent term of quantum dynamical model ( the off - diagonal of reduced density matrix ) by improving the nature of displace operator and the nature of coherent states. then, the interaction is energies of a two - photon mechanism and the usual one - photon or liner driving mechanism. we deduce the coherent term by improving the nature of squeezing operators, displace operators and canonical transformation

    其一，僅有阻尼相互作用和勢能相互作用，此時利用位移算符的性質和相干態的性質很方便地推導了量子動力學模型的相干項（約化密度矩陣的非對角元） ；其二，考慮的是既有單光子相互作用又有雙光子相互作用，這時利用相干態、壓縮算符及正則變換等的性質推導出相干項。
  16. Part two : organizing strategy of cooperative learning in implementation of new mathematical curriculum this part analyzes the problem in the process of implementing of cooperative learning in new mathematical curriculum by observing in classroom and studying case. six problems is : ( 1 ) the group activity stay on the formal, and lack the material cooperation ( 2 ) individual duty diffuse, " take a ride " phenomenon have the occurrence ; ( 3 ) student social intercourse technical lack. ( 4 ) no change in teacher ' s role, lacking guidance to student ; ? ividing group difficultly for big class formation, fulling of too much noisy in classroom ; ? valuation system is not well, group cooperation exist in name only, provides six suggestions for these problems : ( 1 ) dividing group scientificly and vividly ; ( 2 ) leading student active cooperative learning ; ( 3 ) increasing the individual duty ; ( 4 ) cultivating students " cooperative method and social intercours technical ; ( 5 ) enhancing management in classroom ; ( 6 ) handling a few relations rightly ; finally, puts forward the principle and program of orgnizing cooperative learning in new mathematical curriculum

    二、新數學課程實施中合作學習的組織策略本部分在對實驗區數學課堂觀察和個案研究的基礎上，分析得出了新數學課程實施中合作學習存在的6個問題：小組活動留于形式，缺乏實質性合作；個體責任擴散， 「搭車」現象時有發生；學生社交技能欠缺，合作效率低下；教師對自己角色轉變認識不清，指導作用沒有跟上；大班額分組困難，課堂過于喧嘩混亂；評價體系沒有跟上，小組合作名存實亡。針對這些問題，對新數學課程實施中開展合作學習提出了6方面建議：科學靈活地分組；引導學生主動合作學習；提高個體責任：重視對學生合作方法、社交技能的培養；加強合作學習中課堂管理；正確處理幾對關系。最後提出了新數學課程實施中合作學習的組織的原則和組織序列。
  17. With laplace transforms, the question can be solved in laplace domain. with the aid of impedance transmit functions, an analytical solution for the impedance function in laplace domain is yielded, so is the corresponding analytical solution for the impedance function in frequency domain, semi - analytical solution of velocity response in time - domain subjected to a semi - sine exciting force and mobility at the level of the pile head

    利用拉普拉斯變換，將定解問題轉化到拉普拉斯域內求解，結合阻抗函數的傳遞性，得到了拉普拉斯域內的樁頂阻抗函數解析解，進而得到了頻域內的樁頂阻抗函數解析解、半正弦脈沖激振力作用下的速度時域響應半解析解和速度導納。
  18. As call centers become more complex, the importance of “ having the right staff and supporting resources in the right places at the right times ” becomes ever more crucial to success

    隨著呼叫中心變得越來越龐大和復雜， 「在正確的時間把正確數量的人員和相匹配的資源放在正確的地點」的重要性愈加凸顯，對呼叫中心的成功運營起著更加重要的作用。
  19. This paper stated the application of parallel link mechanism in modern machine tools, set up the error analysis as to parallel link mechanism in the virtucal - axis machine tool, derived the double triangular error equations of parallel link mechanicsm in its horizontal posture, analyzed the linearity and non - singularity of the error equations, thus giving the normal splution to the horizontal posture error. the error distribution law is simulated as to the center line in the workplace, and the error distribution curves are drawn as well

    該文對並聯機構在現代機床上的應用作了論述，建立了虛擬軸機床並聯機構的一種誤差分析方法，應用坐標變換原理導出了雙三角並聯機構水平姿態時的誤差方程組；分析了誤差方程組的線性和非奇異性，給出了水平姿態時的位姿誤差正解；對工作空間中心線的誤差分佈規律進行了模擬，繪制了其誤差分佈曲線。
  20. Power bond graph is used to established the bond graph model of the lifting and dropping of hydraulic pile hammer and state space equation in the paper for hydraulic pile hammer is perplexing nonlinear system. in order to attain the graph that pressure, position, velocity, acceleration vary with time in the course of driving pile simulation procedure solving state space equation is designed on the basis of combining four - order runge - kutta method with predicator - corrector method, dynamic simulation of the hydraulic system is studied in matlab 6. 5. it is convenient to analyse dynamic characteristics of the hydraulic syste m, beneficial to the design and parameter optimization of the hydraulic system. in the final part of the paper, under detailed analysis of the control characteristics for double - acting hydraulic pile hammer with double cylinders, control system based on the programmable logic controllers founded on technology of modern compute is designed

    由於液壓打樁錘液壓系統是一個復雜的非線性系統，本文採用功率鍵合圖法建立液壓打樁錘上行、下降的鍵合圖模型和狀態空間方程，通過四階龍格?庫塔法和預估?校正法相結合編制了模擬程序對狀態空間方程求解，在matlab6 . 5中進行液壓系統的動態模擬，獲得液壓打樁錘運動過程中壓力、位移、速度、加速度等隨時間變化的曲線圖。此曲線圖方便了對液壓系統動態特性分析，為液壓系統的設計和參數優化提供了有益的借鑒。最後，在深入分析雙缸雙作用液壓打樁錘控制系統的功能要求后，採用了以現代計算機技術為基礎的新型工業控制裝置? plc可編程式控制制器，設計出了雙缸雙作用液壓打樁錘的電器控制系統。
分享友人
分享到 Line

分享到臉書