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cesium n.【化學】銫。

cesium clock

It is important that study gamma - ray spectrometry of field rock and soil in the earth ' s crust . its energies range between 30kev and 3000kev , where there is much information of natural radioactive nuclides , such as uranium , thorium , potassium , and information of artificial radioactive nuclides , such as cesium , americium , cobalt , and information of the results in interaction between gamma - ray and earth ' s crust 研究表明:野外地面射線能譜測量主要研究地殼巖石土壤中產生的能量約為30kev 3000kev的射線,這里面包含著鈾、釷、鉀等天然放射性核素信息,核工程活動產生的大量人工放射性核素信息以及射線與地殼相互作用產生的相關信息。

Technological innovation is the development of enterprises in the last word , i have always maintained the secretary rise in special wallssevered the forefront of the core system , in 2000 , the high - intensity of my invention cesium potassium glass chip . test success has been on the market seven years , 2007 to special ( fire ) glass wallsindoor fire glass partition , fire glass window design , construction and 10 years of deep - processing glass curtain wall designconstruction and constantly sum up experience and experiment , glass walls severed system to fire . high temperature must be within the framework of anti - bomb material support fixed glass in the event of fire . at the time of the explosion have enough time to ensure the integrity of the entire system . bullet - proof glass or glass does not fire in a short period of time due to damage fixed framework , a glass panel fell off , lost the fire or bomb - functional 企業不斷的技術創新是我們發展的硬道理,也是我司一直保持林立于特種幕墻、隔斷系統前沿的核心, 2000年,我司發明的高強度單片銫鉀防火玻璃,經試驗檢測成功推向市場以來已有7個年頭,七年來特種(防火)玻璃幕墻、室內防火玻璃隔斷、防火玻璃門窗的設計、施工及十多年來的玻璃深加工,幕墻設計、施工及不斷的經驗總結和試驗,玻璃幕墻、隔斷系統要防火、防炸彈沖擊波必須要有耐高溫高強度的框架材料固定支撐玻璃,在一旦發生火災、爆炸的時候要有足夠的時間保證整個系統的完整性,不至于防火玻璃或防炸彈玻璃在短時間內由于固定框架破壞,而玻璃脫落,失去了防火或防炸彈的功能。

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 )采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,并可方便地調節其負失諧量而無須對后續光路再作調整; 2 )建立了一套基于計算機程序控制的、銫原子激光冷卻與俘獲實驗所需的時序控制系統。

Analysis f k and na in nepheline were curried out with higher precision and repeatability by means of adding fluohydric acid during sample melting to remove sio2 , adjusting the ratio of k and na in the solution to reduce the mutual interference of the two elements , and adding cesium chloride to eliminate ionization interference 摘要本方法用于測定霞石中的鉀、鈉,主要通過在溶樣時加入氫氟酸除去二氧化矽,調整溶液中鉀、鈉的含量,消除互相之間的干擾,加入氯化銫消除電離因素的干擾,提高了分析結果的準確性和重現性,使測定結果更接近化學分析值。

Xinyu ganfeng lithium co . , ltd . is a hi - tech enterprise integrating research , production and trade , specialized in the development and manufacture of lithium , rubidium , cesium series products such as lithium metal for catalysts , lithium metal for batteries , lithium chloride , lithium fluoride , rubidium carbonate , cesium carbonate , etc . fengxin keyuan lithium co . , ltd is a subsidiary of ganfeng lithium co . , ltd , and keyuan lithium co . , ltd , it is located in fengxin county , 60 kilomiles away from nanchang of the capital of jiangxi province 新余市贛鋒鋰業有限公司是集科、工、貿于一體的高科技術企業,專業從事催化劑專用金屬鋰、電池金屬鋰、氯化鋰、氟化鋰、碳酸銣、碳酸銫等鋰、銣、銫系列產品的生產、開發工作。贛鋒鋰業在離江西省省會南昌60公里的奉新縣設有一子公司?奉新科源鋰業有限公司。

The system has its own style . the trapping beams can be independently adjustable and three double - passed circularly polarized cooling / trapping beams intersect at the center of mot . about 1 107 cesium atoms with equivalent temperature of ~ 270 k are successfully trapped in our vcmot 在每束冷卻俘獲光的光強約4 . 9mw cm ~ 2 、失諧量為- 10mhz 、軸向磁場梯度約11 . 6gauss cm的條件下得到的冷原子樣品中典型的原子數約1 10 ~ 7個,溫度約270 k左右。

Offers cesium metal and compounds , sophisticated zirconium , titanium and barium metal powders , hydrides and metal alloys as well as minor metals for the manufacture of special alloys -鋼鐵冶煉鋼材軋制其他金屬冶煉及其壓延加工銷售,燒結礦焦炭化工產品的生產電子產品機械冶金設備制造。

We have studied theoretically the optical properties of the interaction between ultrashort pulses and the nonlinear optics crystal cesium lithium borate ( cslib _ ( 6 ) o _ ( 10 ) ) 論文從理論上對超短激光脈沖與非線性cslib _ 6o _ ( 10 ) ( clbo )晶體相互作用的光學性質進行了研究。

Engineers are currently planning a two - stage ion exchange process to extract radioactive cesium and technetium from the soluble part of the alkaline tank waste 工程師目前正在規劃一個兩階段離子交換過程,將具有放射性的銫與?從鹼性的廢料溶液中萃取出來。

The detuning of the trapping laser is 120ghz and laser power near the focus is about 300m w . the dipole trap is characterized via the fluorescence of trapped cesium atoms 俘獲光相摘要對艷原子dz線負失諧120ghz ,俘獲光功率約300mw ,聚焦腰斑半徑約巧腳。

Determination of lithium , sodium , potassium and cesium in uranium dioxide dioxide powders and pellets by atomic absorption spectrophotometry flame emission spectrophotometry 二氧化鈾粉末和芯塊中鋰鈉鉀銫的測定原子吸收分光光度法火焰發射光譜法

In the synthesis of organic intermediate compounds , cesium carbonate could be used as a mild and efficient reagent for deprotection [ 1 ] and as a base reagent [ 2 ] 在有機中間體合成過程中作為一種溫和的脫保護基基團[ 1 ]以及一種有效的堿性試劑[ 2 ] 。

Cesium carbonate is packaged by polyethylen bottle containing 1000g , the bottles in a carton , the net weight of a carton should be no more than 20kg 包裝:產品用聚乙烯塑料瓶包裝,再置于硬箱中,每瓶凈重1000g ,每箱凈重不超過20kg 。

Methods for chemical analysis of lithium , rubidium and cesium ores - determination of rubidium content - flame atomic absorption emission spectrophotometric method 鋰礦石銣礦石銫礦石化學分析方法火焰原子吸收發射分光光度法測定銣量

Methods for chemical analysis of lithium , rubidium and cesium ores - determination of lithium content - flame atomic absorption emission spectrophotometric method 鋰礦石銣礦石銫礦石化學分析方法火焰原子吸收發射分光光度法測定鋰量

So scientists keep working on the tunneling technology and finally perfect it , first teleporting a single atom of cesium in a lab 所以科學家仍然努力研發著量子通道技術并且最終將其變得理想化了,第一次是在實驗室傳送單個銫院子。

Methods for chemical analysis of lithium rubidium and cesium ores - determination of cesium content - flame atomic absorption emission spectrophotometric method 鋰礦石銣礦石銫礦石化學分析方法火焰原子吸收發射分光光度法測定銫量

Purpose : a base material of various cesium compounds , used in glass , ceramics , catalyst and chemically analytics reagents 用途:制取各種銫鹽的基礎原料,用于生產特種玻璃、催化劑、特種陶瓷及用作分析試劑。

Application : a raw material for producing of various cesium compounds , widely used in the catalyst , special glass and ceramics etc 用途:取制各種銫鹽的基礎原料,在催化劑,特種玻璃,陶瓷方面有廣泛用途。