模壓周期 的英文怎麼說
中文拼音 [móyāzhōuqī]
模壓周期
英文
clamping cycle-
It is necessary to control the mechanical stimuli precisely in the studies of cardiac mechano - electrical feedback ( mef ). in the present study a ventricular pressure - clamping system has been developed, which can be applied to isolated - perfused rabbit hearts. controlled by a computer, this system not only can make the left ventricle follow a command defining the same pressure wave as that during a beating cycle under physiological condition, but also deliver mechanical stimuli with a proper waveform to the ventricle at a particular time phase. this system integrates multiple functions, including perfusing, pacing, recording of electrocardiogram and monophasic action potentials, and clamping and measuring of ventricular pressures in isolated - perfused hearts. thus, it is a distinct system for investigating the phenomena and mechanisms of cardiac mef at organ level
在心臟機械電反饋的研究中準確控制機械刺激是非常重要的.本研究室構建了一套適用於離體家兔心臟的心室壓力鉗系統.該系統通過計算機控制壓力鉗，不僅能模擬正常生理條件下左心室的壓力波形，還能在心室活動周期的特定時相、以適當波形對心室施加機械刺激.該系統集心臟灌流與起搏、表面心電圖記錄、單相動作電位記錄、心室壓力鉗制與測定等多種功能於一體，特別適用於器官水平上觀察機械電反饋現象並探討其機制Abstract : it is necessary to control the mechanical stimuli precisely in the studies of cardiac mechano - electrical feedback ( mef ). in the present study a ventricular pressure - clamping system has been developed, which can be applied to isolated - perfused rabbit hearts. controlled by a computer, this system not only can make the left ventricle follow a command defining the same pressure wave as that during a beating cycle under physiological condition, but also deliver mechanical stimuli with a proper waveform to the ventricle at a particular time phase. this system integrates multiple functions, including perfusing, pacing, recording of electrocardiogram and monophasic action potentials, and clamping and measuring of ventricular pressures in isolated - perfused hearts. thus, it is a distinct system for investigating the phenomena and mechanisms of cardiac mef at organ level
文摘:在心臟機械電反饋的研究中準確控制機械刺激是非常重要的.本研究室構建了一套適用於離體家兔心臟的心室壓力鉗系統.該系統通過計算機控制壓力鉗，不僅能模擬正常生理條件下左心室的壓力波形，還能在心室活動周期的特定時相、以適當波形對心室施加機械刺激.該系統集心臟灌流與起搏、表面心電圖記錄、單相動作電位記錄、心室壓力鉗制與測定等多種功能於一體，特別適用於器官水平上觀察機械電反饋現象並探討其機制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。Using the particle - in - cell ( pic ) model, a 8 millimeter relativistic backward wave oscillator underlying superradiance mechanism was gotten, the influence on both operation frequency and radiation efficiency of the guiding magnetic field, the diode voltage, the beam current and the beam radius as well as the corrugation structure were also presented
採用pic方法，通過數值模擬優化設計了超輻射狀態下的8毫米相對論返波振蕩器，分析了引導磁場、二極體電壓、電子束流、電子束半徑、周期慢波結構等對器件的輻射功率及輻射效率的影響。The basin - formed mechanism, evolution model and petroliferous geological features of compresso - shear basins in the world are analyzed, by which six aspects of the features are summarized as follows : 1 ) in the compresso - shear process, the sedimentary speed of basin is high, forming thicker coarse - grained clastic rocks which normally shape good petroleum reservoir ; 2 ) the source rocks of basin tend to coming from the organic matter - enriched rocks formed in pre - compresso - shear stages, except that in intense compresso - shear process, deep water - semi deep water source rocks are possibly developed in pre - compresso - shear stages, e4xcept that in intense compresso - shear process, deep water - semi deep water source rocks are possibly developed in frontal of deep depression ( fore deep ) of thrust belt ; 3 ) the en echelon folds ( including anticline and fault - nose structure ) are generally as good oil traps ; 4 ) the compresso - shear process is helpful to hydrocarbon accumulation ; 5 ) it may promote the maturity and hydrocarbon - generating process of organic matte, and 6 ) the thrust belts in the surrounding areas of compresso - shear basin are favorable are favorable domains for petroleum concentration
摘要通過對世界上壓扭性盆地的成盆機制、演化模式和油氣地質特點分析，總結壓扭性盆地具有6個方面的石油地質特徵：壓扭作用期間盆地的沉積速率較高，一般形成較厚的粗碎屑沉積，它們常構成很好的油氣儲集層：盆地的烴源巖往住來自於前壓扭期砂成的富含有機質的巖石，但在強烈的壓扭作用期間，在沖斷帶的前緣深坳陷（前淵）中有可能發育深水半深水相的烴源巖；壓扭（張扭）作用期間形成的雁行式褶皺（包括背斜和斷鼻等）往住是很好的油氣圈閉；壓扭作用易於成藏；壓扭作用可以促進有機質的成熟生烴作用；壓扭性盆地的周邊沖斷帶是油氣賦存的有利部位。Based on an engineering background, through numerical simulation of the flow field in the hp turbine of the energy efficient engine ( e3 ), the article research the unsteady flow in a transonic turbine stage, the unsteady phenomena in the stage include the shockwave, wake, shedding vortex, endwall vortex, passage vortex and leakage vortex, etc. there are two shockwaves generated on the vane the tailing edge, one on suction side is named moving shockwave, and name another on pressure side steady shockwave
本文首先對于研究的意義和國內外研究的現狀做了簡要的介紹，再從某工程背景出發，通過對e3發動機高壓渦輪內流場的數值模擬，研究了干涉的周期性的問題，以及渦輪級內常見的非定常現象：激波、尾跡、脫落渦、根腳渦、通道渦、漏流渦。導向器尾緣會出現兩道激波，在吸力面的激波可稱為「運動」激波，壓力面的激波可稱為「定常」激波。Rapid prototyping technology changed the traditional pattern of product design, which could offer product sample for the designer, reduced design cycle and quicken the schedule of new product design, and it gave the decision - makers visual feeling. ; rp technology provided kinds of molds including resin - boncled mold laminate mold, investment mold and lost foam casting mold and so on for sand casting investment casting and cavityless casting, it could also use direct shell production casting to make pattern dies metal dies die - casting dies injection dies directly, and it could even produce casting products in small scales. the applications of fdm technology in plaster precision casting and the rapid casting technology based on sls technology were introduced, the organic combination between rapid prototyping tecnnology and foundry process, which initiated a new period of rapid manufacturing metal parts, by using advanced new technology alternated traditional foundry industry to make it looked brand - new, thus, the competition of foundry industry would be improved ; rapid prototyping technology offered a rapid economical feasible technical method, common processes of using rapid prototyping technology to produce dies were discussed, in the paper it explored that. the problem of combining rapid prototyping technology with electric arc metal - spraying technology to make metal dies and technics in dies manufacturing of combining rapid prototyping technology with precision casting, rapid tooling based on rapid prototyping, integrated advanced new technology and tradition technology of rapid prototyping manufacture, each superiority were exerted, rapid prototyping technology had been an efficiency measure to rapid update products and develop new product, and to middle -
快速成型技術改變了傳統的產品開發模式，可以為設計者提供產品樣件，縮短設計周期，加快新產品的開發進度，為決策者提供直觀性；快速成型技術迅速提供砂型鑄造、熔模鑄造、實型鑄造用的各種模樣，包括樹脂模、層壓模、熔模和消失模等，還可採用直接制殼鑄造法直接製造熔模鑄造用的壓型、金屬型、壓鑄型、注塑模，甚至直接製造小批量鑄件，介紹了熔積成型技術在石膏型精密鑄造上的應用和基於選擇性激光燒結技術的快速鑄造技術，快速成型技術與鑄造工藝的有機結合，開創了快速製造金屬零件的新階段，對用高新技術改造傳統的鑄造工業，使其面貌煥然一新，增強鑄造行業的競爭能力；快速成型技術為母模的製造提供了一條快速、經濟、可行的技術途徑，討論了利用快速成型技術製造模具的一般工藝方法，探討了將快速成型技術與金屬電弧噴鍍技術結合起來快速製造金屬模具問題，以及快速成型技術與精密鑄造技術相結合的模具製造工藝，基於快速成型製造的快速模具技術，集成了快速成型製造高新技術和傳統技術，發揮各自優勢，已成為產品快速更新換代和新產品開發及中、小批量生產的有效手段之一。Semi - solid forming of aluminum is finding its main niche today in its growing ability to 1 ) control metal viscosity and hence mold filling behavior, 2 ) reduce die casting cycle time, 3 ) improve die life, 4 ) improve casting soundness and quality, and 5 ) produce parts at acompetitive cost
由於鋁半固態成型技術能更好地1 ）控制金屬粘性和模具填充性能2 ）減少壓鑄生產周期3 ）增加模具壽命4 ）改善壓鑄質量5 ）使生產的零件價格具有競爭性，因此目前有重要的使用價值。This paper analyzes the character of the transformer load and presents the control means to reduce the comprehensive power loss to minimum by controlling the transformer operation status, which forecasts the daily load of transformer by periodical auto - regression model ( par ) and divides the daily flow line automatically into two typical phases. then, this paper simulates the par by matlab. at last, a real intelligent control device based on the ti ’ s tms320lf2407 dsp has been completed
論文分析了配電變壓器的負載特點；提出採用周期自回歸模型預測配電站用電日負荷，根據負荷預測結果和用電時段，以綜合功率損耗最小為目的變壓器經濟運行控制方法；以ti公司的tms320lf2407dsp為基礎，完成了配電站變壓器經濟運行智能監控裝置的研製。Due to the low mechanical efficiency and long circulating period of the down - charging system of cold bed in bar production line, this paper puts forward the improving project, which adopts ethernet supplemented by dp network, applies the fm350 - 2 advanced counter and suitable maths model and combines the technique of the transducer and hydraulic pressure drive control to realize auto - control
摘要針對棒材生產線上冷床下卸鋼系統機械效率低、運行周期長，不能適應快節奏生產的現狀，採用以工業以太網為主、 dp網為輔的網路通訊，應用西門子fm350 - 2高速計數器，通過有效的數學計算模型，結合變頻器和液壓傳動控制技術，實現網路自動化控制。Drawing piece unfold size is one basic condition under the calculation on coefficient, number of drawing, handbooks or books of press are not given, practice press production, die designer designs drawing die by experience calculation, after testing, according to deformation, state, defect shape of testing blank, shape and unfold size is revising, finally, unfold size and shape of blank are determined, designing period is longer, cost of die and work piece is to raise, economic benefit is to reduce
拉深件展開尺寸是拉深可行性分析中計算拉深系數與拉深次數的前提條件，現有沖壓手冊或教材對于復雜拉深件的展開尺寸計算尚未論述。復雜拉深件的沖壓生產中，模具設計者憑經驗估計拉深可行性，設計製造拉深模進行反復試壓，根據試壓件的形變狀態，缺陷形貌，制定坯料展開尺寸和形狀，周期較長，因而生產成本高，經濟效益不佳。In the wave trough of the pressure curve, the pressure may be then if the rocket is accelerating or if it has assembling defects, the early explosion of the grenade on the ballistic may be caused
該模型的微分方程計算結果表明微小彈簧在彈道上的振動過程會使導電桿的受壓產生周期性變化，尤其是在一些波谷處，導電桿幾乎不受壓力，此時如果有火箭加速和其它裝配缺陷等因素的影響，就會引起彈丸在彈道上的早炸。Its vertices are located at all points of the form ( i1, i2 ) or each vertex has six neighbors. the six neighbors of the vertex v are the set of vertices the set of edges e the model of the hexagonal lattice the usual way to imbed the hexagonal lattice is such that its face are regular hexagons. the vertices are the points. the origin is in the center of one of the hexagons and the periods are (, 0 ) and ( 0, 3 )
頂點集合為為整數邊的集合為相鄰}正六邊形點格模型為：平面是由正六邊形點格組成，它的頂點坐標為其中，原點在一個正六邊形的中心，周期為（ 3 ~ （ 1 / 2 ） ， 0 ）和（ 0 ， 3 ）我們可以把它在豎直方向壓縮1 3 ~ （ 1 / 2 ）倍使它成為周期圖。The results show that the light field is squeezed regularly, and that the collapse - and - revival of the atomic rabi oscillation appears under the detuning. when the initial squeezed light - field factor r is weak, photon bunching alternates with photon antibunching, and the detuning leads to the reduction of photon antibunching ; to the contrary, the factor r is strong, photon statistical properties are steady bunching, and the detuning makes two - mode correlation properties steady
數值計算結果表明：光場呈現出較規則的壓縮現象；失諧量使原子rabi振蕩呈現周期性崩塌與復甦現象；當r較小時，光子的聚束效應與反聚束效應交替出現，失諧量將削弱光子的反聚束效應；當r較大時，光子呈現恆定的聚束效應，失諧量增強光場兩模非經典相關的穩定性。So experimental study of dual - mode scramjet engines puts higher demands on simulating capability of ground test facilities and measurement technology, and greatly increases test cost and time
因此，雙模態沖壓發動機的研究對地面設備的試驗能力和測量技術提出了更高的要求，也大幅度地增加了試驗的周期和費用。( 2 ) each state of the total switching period has been studied in detail, in which the voltage of block capacitor and current of leakage inductance of main transformer and keeping time of each state have been discussed, then the condition of zero voltage switching is attained, which gives theory guidance for setting reasonable dead time, finally, the possibility of zero voltage switching is proved by simulation of saber software
（ 2 ）對不對稱半橋在一個完整的開關周期內各個狀態分析，描述了隔直電容電壓和變壓器漏感電流的變化規律，各個狀態的持，然後得出實現zvs的條件，從而為設置合理的死區時間提供了理論指導，最後用saber軟體進行了模擬，驗證了零電壓開關實現的可能性。A model of letting out of no oil ubricated double whirlpools vortex air compressor was set up, the length of leak line of one cycle was calculated the change of the leak line at work, the change of the length of leak line varying with the crank corner, and the change of the leak amount varying with the pressure of revealing atmospheric and crank corner were analyzed
摘要建立了無油潤滑雙渦圈渦旋壓縮機的泄露模型，根據型線的幾何理論計算了一個周期內泄漏線的長度，分析了在工作過程中泄漏線的變化，泄漏線長度隨曲柄轉角的變化，以及泄露量隨排氣壓力，曲柄轉角的變代情況。Obtained by emtp program and the egm, this paper studies on lightning protection performance on 500kv double circuit transmission line the distributed parameter model of tower is built when analyzing the back stroking lightning protection performance for double circuit line, it can truly reflect the spreading course of lightning current on the tower, furthermore, considering the randomness of working voltage ' s phase when lightning strokes the top tower and supposing the probability of lightning appearing arbitrary phase in a cycle of ac is equal, this paper brings forward the statistical method to calculate the rate of back stroking on double circuit line
本文利用emtp程序、擊距法對500kv同桿雙回線路的耐雷性能進行了研究。在分析同桿雙回線路的反擊耐雷性能時，建立了桿塔的分佈參數計算模型，此模型可以真實地反映雷電流在桿塔上的傳播過程。並針對雷擊塔頂時，導線運行電壓相位角的隨機性，本文假定雷擊出現于交流一周期的任一角度區間內的概率相等，提出了利用統計法計算同桿雙回線路的反擊跳閘率。The twelve kinds of modes and equivalent circuits within one high frequency switching period are carefully analyses. by using the state - space averaging approach, the converter ' s averaging model is presented, the output characteristic curve and design criterion of key circuit parameters such as output voltage, filtering inductance, common conduction time, uni - polarity spwm waveform ' s duty cycle etc are given
詳細分析了這類變換器在一個高頻開關周期內的十二個工作模式及其等效電路。採用狀態空間平均法建立了變換器平均模型，獲得了輸出電壓、濾波電感電流、共同導通時間、單極性spwm波占空比等關鍵電路參數的設計準則和變換器的外特性曲線。The results show that under the condition of the squeezing - power - number being an any even number or the pruduct of the squeezing - power - number and the total cavity - mode - number being an any even number, if some certain and fixed conditions are satisfied respectively by the initial phase of each mode in the state or the sum of the initial phase of each mode in the same state mentioned above, by the initial phase difference between any two components in the state, and by the sum of mean photon - numbers, which are modulated by the initial phase of each mode in the state mentioned, of all the single mode coherent states light field, the state can always display the effect of generalized nonlinear equal - power n - th power y - squeezing, or present the effect of generalized nonlinear equal - power n - th power h - squeezing, that changes alternatively and periodically
結果發現：在壓縮次數取偶數或者壓縮次數與腔模總數這兩者之積取偶數的條件下，若各模的初始相位或者各模的初始相位和、態間的初始相位差以及受各模的初始相位調制的各單模相干態光場的平均光子數之總和等分別滿足一定的取值條件，則態| ~ （ （ 4 ） ） _ q的第一和第二這兩個正交相位分量總可分別呈現出周期性變化的、西北人學碩{ _學位論文摘要廣義非線性等冪次n次方y壓縮或者等冪次n次方h壓縮效應。分享友人