atomic time system 中文意思是什麼
atomic time system
解釋
原子時間系統-
A common problem in theoretical chemistry, condensed matter physics and materials science is the calculation of the time evolution of an atomic scale system where, for example, chemical reactions and / or diffusion occur
一個在理論化學方面的很普通的問題，涉及到凝聚體物理學、材料科學，例如：化學反應和擴散發生的時間。 -
Early this year, the hko installed a high accuracy time transfer system which employed the global positioning system common - view method to provide time information of hko s atomic clock to bipm for utc determination
香港天文臺於今年初安裝了一套高準確度授時系統，並利用全球定位系統共視方法（ globalpositioningsystemcommon - viewmethod ） ，向國際度量衡局提供天文臺的原子鐘時間數據，參與訂定協調世界時。 -
We study the time evolution law of the atomic response in an open - type inversionless lasing system when the probe or driving field is off - resonance, and compare the law with that obtained when the probe and driving fields are resonant. we find that the detuning has considerable effects on the time evolution law : when the probe or driving fields is off - resonance, the dispersive responses for the probe and driving fields are no longer 0 and the two - photon coherence is no longer a pure real ; the variation of the probe detuning can make the time evolution law of the population distributions and the gain ( absorbtion ) of the driving field changing obviously ; with detuning increasing, the time evolution behavior of the gain ( absorbtion ), dispersion of the probe field and the two - photon coherence will gradually diviate from the evolution law of the standard damped oscillator ; with the driving detuning increasing, the oscillating time of the dispersion of the driving field becomes longer, the amplitude and the stationary value increase
研究了探測場或驅動場失諧情況下開放的型無粒子數反轉激光系統中原子響應的時間演化規律，並與探測場和驅動場都共振時的演化規律進行了比較.我們發現失諧對時間演化規律有顯著的影響;當驅動場或探測場失諧時，原子對探測場和驅動場色散的響應不再為零，雙光子相干不再是純實量;探測場失諧的變化將使粒子布居和驅動場增益（吸收）的時間演化規律明顯改變;隨著失諧的增大，探測場增益（吸收） 、色散和雙光子相干隨時間的演化行為逐漸偏離標準阻尼振子的演化規律;驅動場色散驅動場失諧量的增加而振蕩時間變長，振幅和穩定值變大 -
Using the microwave selective heating property for materials, by setup equivalent equation, and first time inducing the electromagnetic field perturbation theory to the design of heating materials for substrate in mpcvd, three temperature distribution modes were established, including temperature distribution comprehensive mode of inhomogeneous plasma, temperature distribution composite mode of composite substrate materials, temperature distribution perturbation mode of composite materials, which ii provided an whole new technology route to the design of substrate heating system in mpcvd and guided the preparation of heating materials for substrate. and then the heating materials for substrate were designed and optimized to obtain large area homogeneous temperature distribution even larger than substrate holder ' s diameter. as an important part, this thesis researched the nucleation and growth of diamond films in mpcvd, systematically researched the effects of substrate pretreatment, methane concentration, deposition pressure and substrate temperature etc experimental technologic parameters on diamond films " quality on ( 100 ) single crystal silicon substrate in the process of mpcvd, characterized the films qualities in laser raman spectra ( raman ), x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), infrared transmission spectra ( ir ), atomic force microscopy ( afm ), determined the optimum parameters for mpcvd high quality diamond in the mpcvd - 4 mode system
該系統可通過沉積參數的精確控制，以控制沉積過程，減少金剛石膜生長過程中的缺陷，並採用光纖光譜儀檢測分析等離子體的可見光光譜以監測微波等離體化學氣相沉積過程；利用微波對材料的選擇加熱特性，通過構造等效方程，並首次將電磁場攝動理論引入到mpcvd的基片加熱材料的設計中，建立了非均勻等離子體溫度場綜合模型、復合介質基片材料的復合溫度場模型及復合介質材料溫度場攝動模型，為mpcvd的基片加熱系統設計提供了一條全新的技術路線以指導基片加熱材料的制備，並對基片加熱材料進行了設計和優選，以獲取大面積均勻的溫度場區，甚至獲得大於基片臺尺寸的均勻溫度區；作為研究重點之一，開展了微波等離體化學氣相沉積金剛石的成核與生長研究，系統地研究了在（ 100 ）單晶硅基片上mpcvd沉積金剛石膜的實驗過程中，基片預處理、甲烷濃度、沉積氣壓、基體溫度等不同實驗工藝參數對金剛石薄膜質量的影響，分別用raman光譜、 x射線衍射（ xrd ） 、掃描電鏡（ sem ） 、紅外透射光譜（ ir ） 、原子力顯微鏡（ afm ）對薄膜進行了表徵，確立了該系統上mpcvd金剛石膜的最佳的實驗工藝參數。 -
Finally, by means of time evolution operator and numerical calculations, the time evolution of the atomic population, the atomic dipole squeezing, the time evolution of the squeezing and coherence properties of the light in the system of the two identical two - level entangled atoms interacting with the coherent optical field have been studied
論文的第三部分工作是採用時間演化算符和數值計算方法，研究了兩全同二能級糾纏原子與相干態光場相互作用過程中，原子布居、原子偶極壓縮、光場的二階相干和光場壓縮性質的時間演化特性。 -
Hko s network time service allows people especially those engaged in e - business to calibrate their computer clocks. the e - certification system of the hong kong post is also synchronized to the atomic clock of the hko. in 2002, on average 5 computers were connected to the hko s network time service every second
其他服務方面，天文臺利用網際網路提供香港標準時間，讓市民尤其是電子商貿參與者校正電腦時鐘，郵政署的電子認證系統也是以天文臺的原子鐘定時的，在2002年平均每秒有五部電腦到天文臺校對時鐘。 -
Moreover, the findings also shows that system initial state entanglement has vast influence on the two entangiements ; in chapter 5, the influence of nolinear interaction on entanglement and the relation between atomic collapse - revive and entanglement are discussed in two - mode nolinear j - c model. the first result gives that when the kerr medium does not exist, the findings is the same as these in the chapter 4, but when the kerr medium exists, evolutions of entanglements are periodic, another new result is that time when atom is collapsing and reviving corresponds to the special entanglement
此外還討論了系統的初態對糾纏的影響；第五章研究了在雙光子非線性j - c模型中非線性作用對原子-雙模場及場模間糾纏的影響，探討了原子崩塌-回復和糾纏之間的關系，研究結果顯示：當類kerr介質不存在時，結果類似第四章的結果，原子和光場的糾纏及雙模場之間的糾纏沒有周期性 -
Technologies, including loading balance in distributed system, distributed transaction and oriented object methods, which discussed in this thesis, have been introduced in the designing and implementation of acs system. this thesis finish the following working : we analyze the theory of load balancing and provide a load balancing model. a load balancing agrithm based on overall expected delay routing is implemented in acs. the experiment results shows that the average response time of job and the system resource utilization can be optimized in acs, distributed transaction is designed and implemented for the roaming file ' s processing, two phase commit proctol is used, which can ensure the atomic of distributed transaction commit, recover the exception quickly and improve the system ’ s reliability
應用控制系統acs （ applicationcontrolsystem ）是針對中國移動漫遊清算系統而開發的面向對象的分散式中間件產品，論文討論了負載均衡、分散式事務、面向對象技術並介紹其在acs中的設計與實現，主要完成了以下的工作:分析了負載均衡的原理，提出了一種分散式動態負載均衡模型，在acs系統中成功實現了總體最小期望等待時間任務分配的動態負載均衡演算法，實驗證明這種演算法縮短了作業的平均響應時間，提高了系統的資源利用率。
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