cavity cell 中文意思是什麼

According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d

本文首先介紹了ld泵浦nd ： yag激光器的發展狀況、主要特性及其應用，從四能級速率方程出發，推導了ld泵浦nd ： yag激光器的閾值、輸出功率和斜效率的表達式，並簡述了激光器的工作原理、結構型式和倍頻方法；其次，以空間相關的速率方程為基礎，提出了ld端面泵浦nd ： yag激光器的設計方法，給出了一定泵浦耦合方式下，振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據，以此為依據，設計了自聚焦透鏡耦合小功率ld泵浦nd ： yag激光器和透鏡組耦合高功率ld泵浦nd ： yag激光器，對激光器的輸出功率和功率穩定性等特性進行了實驗研究；再次，在帶尾纖輸出的高功率ld泵浦nd ： yag激光腔內插入一隻空液晶盒，觀察到了激光器以單縱模運轉；最後，根據泵浦光焦斑端面位置對激光輸出功率的影響規律，提出了ld端面泵浦nd ： yag激光位移傳感新方法，並進行了理論和實驗研究，研究結果表明：當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時，激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律，測量范圍和靈敏度依賴于泵浦功率，隨著泵浦功率的增加，測量范圍擴大，靈敏度提高，當端面泵浦功率為7 . 24w （最大輸出功率為1 . 926w ）時，激光位移傳感器的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。

A small angular cavity or pit, such as a honeycomb cell

小窩，蜂巢小窩或小泡，如蜂房的巢室

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。

Method : the effects of portulaca extracts towards normal rats on the function of macrophage cell in abdominal cavity, the formation of hemolysin and hemolysis void and transformation of hemolysis void were observed

方法：觀察馬齒莧提取物對小鼠腹腔巨噬細胞吞噬功能、濃血素形成、溶血空斑形成及淋巴細胞轉化功能的作用。

Usage : it is the intermediate of human body sugar suppression, it could be absorbed by organize through cell membrane when the human body lacks of the insulin promotion, and could promote the liver glycogen synthesize, improve the liver function, it is the ideal medicine for the diabetic and hepatitis complication ; at the same time, it is not used by the bacterium that could bring about dental caries in the oral cavity, it could prevent the dental caries ; it could be used in food, healthy food, medicine, and light industry broadly

是人體糖代謝的中間體，在人體缺少胰島素促進的情況下，木糖醇也能透過細胞膜被組織吸收利用，並能促進肝糖元合成，改善肝功能是糖尿病和肝炎並發癥病人的理想藥物；同時，本品不被口腔中產生齲齒的細菌所利用，能防止齲齒；廣泛用於食品，保健品，醫藥，輕工等

There were clinical and histological similarities among verrucous hyperplasia ( vh ), verrucous carcinoma ( vc ) and squamous cell carcinoma ( scc ) of the oral cavity, especially, in those cases with borderline morphology

摘要口腔之疣狀上皮增生、疣狀癌及鱗狀細胞癌在臨床及組織學上的變化相當類似，特別是那些組織形態呈現邊緣型者。

The smell of the upside after olfactory receptor is located in nasal cavity is epithelial inside, experience a cell to be smell cell

嗅覺感受器位於鼻腔後上部的嗅上皮內，感受細胞為嗅細胞。

We know, odour is formed by volatile element action of material, when the person is inspiratory, wave come loose to be gotten into nasal cavity in aerial odour element, encounter with the olfactory cell inside

我們知道，氣味是由物質的揮發性分子作用形成的，當人吸氣時，飄散在空中的氣味分子鉆進鼻腔，與裏面的嗅覺細胞相遇。