激冷作用 的英文怎麼說
中文拼音 [jīlěngzuòyòng]
激冷作用
英文
chilling action-
If the velocity of atoms is near to zero, the light for ces will tend to confine the atoms near to nodes and antinodes. the stability depends on the magnitude of the negative slope of the light force, the depth of the potential well and the momentum diffusion coefficient. it is important to select the parameters, e. g
如果通過激光冷卻能使原子速度降至很小甚至為零，光壓力的作用將使原子被較穩定地囚禁于激光駐波場的節點和反節點處，其穩定程度取決于該處光壓力曲線負斜率的大小、對應勢能的勢阱深度以及動量擴散系數的大小，因此，如何在實驗中合理選擇激光強度、失諧量等顯得尤為關鍵。Based on the epwp and wpwp in conjunction with abnormal north and west wind, a new possible iii mechanism is provided for the evolution of the 1997 / 1998 el nino. to be specific, the warm kelvin wave propagating to east excited by the abnormal west wind can suppress the cold upwelling flow in the eastern pacific, which, in turn, is favorable to the eastern pacific sst increase ; abnormal west wind can make the warm water of the wpwp east edge extend to east, which is conductive directly to eastern pacific sst increase ; the abnormal west wind propagating to east can make the sea surface warm water near two equatorial laterals converge to the equator by ekman drifting, which, in rum, strengthens the downwelling flow near the equator, leading to eastern pacific sst increase
將東、西太平洋暖池及異常北風、西風一併結合起來考慮，提出1997 1998elnino事件發生、發展的一種新的可能機制：異常西風激發東傳的暖kelvin波對東太平洋的冷上翻流有抑制作用，從而有利於東太平洋海表溫度增加；異常西風驅動西太平洋暖池東端暖水向東伸展直接有利於東太平洋海表溫度增加；東傳的異常西風可以通過埃克曼漂流效應將赤道兩側的海表暖水向赤道輻合從而加強了赤道附近的下沉流，也有利於東太平洋赤道附近海表溫度增加。However, the disadvantage of laser welding is the so - called post - weld - shift ( pws ). the end result is a reduction in light coupling efficiency. the shrinkage force generated by the solidification process is so great that no known mechanical structure can counteract the shrinkage from shifting the joint ? at least at the micron level
這種封裝技術最大的缺點是會使激光二極體的封裝產生焊後偏移（ pws ） ，很少有一種機械的方法可以校正這種焊後偏移到亞微米級別，目前激光錘被證明是一種很有效的校正方法，激光錘校正作用過程就是利用金屬熔化凝固冷卻產生的內應力來恢復焊後偏移的過程。The above analysis showed that this heavy rainfall event took on obvious meso - scale characters and was the combination of the three flows, so we can deduce : ( 1 ) surface southeasterly wind and topography may play the main role in this event ; ( 2 ) the easterly cold air rushing into the southern shaanxi province in the lower troposphere was strongly relative to the form of surface cold - front type of occlusion ; ( 3 ) there were two reasons for the secondary circulation ' s strengthen in the evening, one was the effect of a mountain - valley wind and the other may be latent heat leading to ascending motion ; ( 4 ) the shape of potential instability stratification corresponded well with the development of the warm - moisture advection ; and ( 5 ) the vapor providing essential thermodynamics was transported by a southwesterly low - level jet from the bay of bengal and the south china sea. furthermore, with the effect of terrain, the southern shaanxi province became the center of this extremely heavy rain process
中尺度結構分析表明，本次暴雨具有明顯的中尺度特徵，是由三支氣流共同作用的結果，分析發現（ 1 ）地面東南風和地形在這次大暴雨過程起主要作用； （ 2 ）東路冷空氣主要是通過中低層侵入陜南地區的，並與地面冷式錮囚鋒的形成密不可分； （ 3 ）夜博士論文:中尺度地形對陜南暴雨的影響研究間垂直次級環流發展加強可能有兩個原因，一個是由於地形山谷風的作用，另一個是降水的潛熱釋放激發了上升運動: （ 4 ）位勢不穩定層結的形成與低層暖濕平流的發展有很好的對應關系; （ 5 ）本次暴雨的水汽主要靠偏南風急流將孟加拉灣和中國南海的水汽輸送至西北地區東部，為暴雨的發生提供了必要熱力條件。In the paper, the master light source is a compact no water - cooled er - doped yag solid laser, developed by ourselves
本論文中，利用自行研製的小型化，無水冷的摻鉺yag固體激光器作為核心光源。In the first part, we describe the designing and construction of vapor cell magneto - optical trap ( vcmot ) in our lab. then, show the optical dipole trap of cesium based on the work of vcmot. in the third part, some preparation works for cavity qed research are presented
本文的工作主要包括以下三方面：第一，採用汽室磁光阱實現了銫原子的激光冷卻與俘獲；第二，在實現磁光阱基礎上，採用紅移行波偶極阱實現了銫原子的光學偶極俘獲；第三，開展了一系列腔qed前期實驗準備工作。Based on the different requirements on the operating mode, the back surface cooling package style by impinge cooler and the module package style by micro - channels coolers were studied respectively
根據對二極體激光器不同工作模式要求，分別研究了採用沖擊式冷卻器的背冷式二維陣列封裝和微通道冷卻的模塊化封裝。Customer optional cooling water machine for laser tube, greatly prolonging the working life of the tube and bettering engraving effect
用戶可選的激光管專用冷水機，大大提高激光管的工作壽命和雕刻效果。The main works and results we have accomplished are as follows : 1 ) red - detuned locking of cooling / trapping laser to the cycling transition of cesium cooling has been accomplished by means of a double - passed acoustic - optical frequency shifting system and the technique of saturated absorption spectroscopy. the short - term residual frequency jitter is less than 350khz ; 2 ) automatic controlling system by computer programs has been established for laser cooling and trapping and cavity qed experiment. the laser and magnetic fields can be controlled by the acoustic - optical modulator and the electronic - controlled logic gate respectively
具體如下： 1 ）採用了往返兩次通過的聲光頻移系統結合飽和吸收光譜技術的實驗方案，實現了冷卻俘獲激光頻率相對于銫原子冷卻循環躍遷的負失諧鎖定，短期頻率穩定度約在350khz以內，並可方便地調節其負失諧量而無須對后續光路再作調整； 2 ）建立了一套基於計算機程序控制的、銫原子激光冷卻與俘獲實驗所需的時序控制系統。In the field of fundamental research, such as quantum optics, blue light can be used as a pump source of optical parametric oscillator ( opo ) to generate the neoclassical light fields around wavelength of 860nm, which can be detected with 99. 9 % of quantum efficiency, the highest efficiency in the measurement of neoclassical light as known yet it is also possible to generate the squeezed vacuum state at 852nm, which is the resonance wavelength of the transition line d2 of cesium atoms and can be supposed to investigate the properties of atomic radiation in the interaction between atoms and quantum state of light fields
在量子光學中，該藍光作為下轉換的泵浦源，可以產生860nm非經典光場，其探測效率可達99 . 9 ，高於目前產生的其他任何波段的非經典光場。同時通過溫度調諧，可望產生與銫原子d2線作用的852nm波段的壓縮真空態，從而開展非經典光場與冷原子的相互作用等方面的實驗研究。本文主要通過knbo _ 3晶體外腔諧振倍頻技術來產生藍色激光光源。Therefore, by exerting controllable atomic array and quantum states, it is possible for physical realization of a quantum computer and the communication of quantum states. it is shown that a negative detuning of the laser field from the atomic resonance will lead to nonzero light pressure forces and reduce velocities along the laser beam axis
研究結果表明，當選擇負失諧時，原子將受到來自激光場的阻滯力，在它的作用下，原子沿激光束方向的運動速度大大減小，溫度降低，表現為冷卻效應。Considering the practical manufacturing condition, an oxygen - free copper microchannel heatsink consisting of five copper sheets is designed and fabricated utilizing the technology of deep photolithography, mechanical machining, and bonding with medium
根據實際製作條件，設計了五層結構微通道熱沉，採用深層光刻分離曝光化學腐蝕技術、機械加工技術和銅直接粘接技術（ dbc ）制備出冷卻大功率半導體激光器迭陣的無氧銅微通道熱沉。Anti - stress, has very good role of resistance to both cold and heat stress factors
抗應激，對冷熱應激因素均有很好的抵抗作用。The roles of salicylic acid in inducing plants resistance to abiotic stress such as heavy metals, ozone, ultraviolet radiation, chilling, heat shock, water deficit and salt stress are reviewed and the possible physiological and molecular action mechanisms of salicylic acid are discussed
摘要本文綜述了水楊酸在誘導植物抗（耐）非生物脅迫如重金屬、臭氧、紫外輻射、過冷、熱激、水分虧缺和鹽脅迫等方面的進展，並探討了水楊酸作用的分子、生理機制。In this dissertation the operation mechanism of pulsed - preionization diffusive cooling co _ 2, laser is studied. pulsed preionization technology is put forward to improve the stability of discharge, decrease the operating voltage, and enhance the electro - optical efficiency
本文研究了脈沖預電離的擴散冷卻co _ 2激光器的運轉機理，提出採用脈沖預電離技術改善縱向脈沖放電的穩定性、降低工作電壓和提高電光轉換效率。The smoking patients to quit resolutely to reduce smog throat of the department of direct stimulation, in addition to the premises clean, reduce dust and maintain indoor humidity to a certain extent, we must pay attention to keep warm, especially in winter, cold air is often induced by stimulating factors
吸煙的患者要堅決戒煙，以減少煙霧對咽喉部的直接刺激作用，另外，注意居室清潔、減少灰塵、保持居室有一定的濕度，還要注意保暖，尤其是冬季，冷空氣的刺激常是誘發的因素。分享友人