atomic radiation 中文意思是什麼
atomic radiation
解釋
原子放射，原子輻射-
The study of the radiation emitted by atoms was largely responsible for the growth of modern ideas about atomic structure.
對原子發出的輻射的研究在很大程度上導致現代的原子結構概念的發展。 -
The mechanical environment is described in the paper and then the environments in three different orbits are proposed, called leo ( low earth orbits ), meo ( medium earth orbit ) and geo ( geosynchronous earth orbits ). the influence produced by the atomic oxygen, micrometeorites and debris, ionizing radiation and cold welding under vacuum is presented in the paper. some principles are proposed, which can be as the method to choose materials of the mechanism in space environment
空間環境中力學環境對可動結構的影響直接關繫到機構的設計問題，所以本文第四章中嶽建如：中文摘要浙江大學博士學位論文20024首先詳細論述了空間環境中的力學環境，然後給出了空間環境的三種軌道環境劃分，及每一種環境影響因素對空間可動結構設計的影響，包括原子氧、離子射線、溫度、微隕石和碎片以及真空冷焊現象等環境因素，提出了材料選擇的原則，為可動結構材料選擇提供了一定的依據。 -
The results show : ( 1 ) that the dynamical properties in the system depend on the degree of entanglement of the initial two identical two - level entangled atoms and the intensity of the coherent optical field, and the atomic dipole moment can be completely squeezed via choosing optimal degree of entanglement of the initial atoms in the feeblish optical field ; ( 2 ) that the quantum properties of the system also depend on the degree of entanglement of the initial two identical two - level entangled atoms and the intensity of the coherent optical field, and the radiation field can be effectively squeezed via choosing optimal degree of entanglement of the initial atoms in the fee blish optical field
（ 2 ）相干態光場的強度和兩原子的初始糾纏度對光場的量子特性也有很大的影響。光場的二階相干性質（聚束與反聚束）和光場的壓縮效應均與光場強度和兩原子糾纏度相關聯。在弱光場中，選擇合適的兩原子初始糾纏度，光場壓縮深度和時間可達到最大。 -
An atom on an excited upper level can execute a downward transition not just spontaneously but also when photons of the radiation field surrounding the atomic interact with it.
處在較高的激發態上的原子不只可以自發地而且可以在它與原子系統周圍輻射場的光子相互作用時發生向下的躍遷。 -
First the emission spectrum of an atom in a grey - body cavity is stuided. the influences of the incident field photon - number distribution, the cavity absorptivity and the system temperature on the atomic emission spectrum are discussed in detail. it is found that the influence of cavity radiation on the atomic emission spectrum could be reduced through diminishing the absorptivity of the cavity and lowering the temperature of the cavity
我們首先研究了灰體腔中二能級原子和型三能級原子的發射譜，詳細討論了入射場光子數分佈、腔體吸收系數以及系統溫度對原子發射譜的影響，指出在實驗上可以通過減小腔體吸收系數、降低系統溫度來減小腔體輻射對原子發射譜的影響。 -
It is derived the hamiltonian for the interaction of a - type three - level atom with a two - mode quantum cavity field from the general interaction hamiltonian between a multi - level atom and a multi - mode radiation field, and reduce it into an effective two - mode raman - coupled mode under large detuning condition. it is proposed a modified effective hamiltonian for the two - mode raman - coupled model. it is found the time - dependent state vectors and present validity conditions for the involved interaction hamiltonians. it is shown that in the study of the two - mode raman - coupled model it is not enough to retain only the usually used effective hamiltonian, one must also take into account the ac stark shift of the atomic levels ( at least one of the levels ). finally, it is studied the atomic dynamics in the interaction of a - type three - level atom with a two - mode quantum cavity field and in the two - mode raman - coupled model. it is found that the number of collapse - revivals, the collapse time and the revival time show new characteristics
從多能級原子與多模光場的相互作用哈密頓量出發，導出了型三能級原子與雙模光場的相互作用哈密頓量.在大失諧條件下將其化成等效的二能級形式雙模喇曼耦合模型.提出了該模型的一個改進型等效哈密頓量.該哈密頓量由兩部分構成：一部為通常所謂的等效哈密頓量，另一部分描述原子能級的動態斯塔克移動.研究表明，在雙模喇曼耦合模型的研究中，只考慮前者是不夠的，還必須考慮後者.最後，我們研究了該系統中原子的動力學行為，發現崩塌-復甦的數目、崩塌時間和復甦時間均呈現新的特性 -
Cdse, a ii - vi compound with direct transition, wide - band - gap and high atomic number ( 48, 34 ), is regarded as a new effective materials for room temperature nuclear radiation detectors and photoconductive devices, and can be used in many fields
Prince提出的優良室溫核輻射探測器材料必須具備的要求，因而被認為是制備室溫核輻射探測器的最有前途的新材料之一，可廣泛應用於探礦、無損檢測、核醫學、環境監測、軍事和空間宇航技術等領域。 -
The steel plastic pipe has strong erosion resistance, longer service life, as well as prevent atomic radiation to raise the safety of plant
倍多原子能發電廠用鋼塑管輸送液體，不僅防腐能力強，使用壽命大幅度提高，而且可防核輻射，增加核電廠的安全其他諸如天然氣 -
United nation science committee of effect of atomic radiation ( unscear ) pointed out in its 1993 report : the collective dose from nature radiation exposure is 76. 6 % of the total collective dose from all radiation exposure
聯合國原子輻射效應科學委員會（ unscear ） 1993年報告書指出：天然輻射產生的輻射照射集體劑量占總集體劑量的76 6 % 。 -
The problem of possible genetic damage to human populations from radiation exposures, including those resulting from the fallout from testing of atomic weapons, has quite properly claimed much popular attention in recent years
人類由於面臨輻射威脅，包括原子武器實驗產生的放射性散落物所造成的輻射威脅在內，因此很可能遭到基因損傷，這一問題近年來已經理所當然地引起了人們廣泛重視。 -
Many international organizations including the international atomic energy agency iaea, the united nations scientific committee on the effects of atomic radiation unscear, and the organization for economic co - operation and development nuclear energy agency oecd nea have published reports on the event, death toll, radiation dose and impact on health and environment
多個國際組織例如國際原子能機構iaea聯合國原子輻射效應科學委員會unscear及經濟合作與發展組織核能機構oecd nea都對事故過程，傷亡情況，輻射劑量和健康及環境影響作出報告。本文參考多個報告的內容，就切爾諾貝爾核事故作一概要介紹。 -
The starting is about copper vapor lasers ( cvls ). we begin with the discussion on the atomic radiation transitions in the cvls, followed by the review of the progresses in the cvls in recent years
概述了銅蒸汽激光器的基本工作原理，簡述了銅蒸汽激光輻射原子躍遷，論述了銅蒸汽激光研究的發展與現狀 -
United nations scientific committee on the effects of atomic radiation unscear 2000 report
聯合國原子輻射效應科學委員會unscear第2000年報告 -
United nations scientific committee on the effect of atomic radiation
聯合國原子輻射效應科學委員會 -
As a result of exposure to atomic radiation, he finally collapssed at work
由於受到原子輻射，他最終在工作時倒下了。 -
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。 -
It possess many of the physical properties such as high atomic number ( z ), large enough band gap, high resistivity, relatively low leakage currents, and high intrinsic mobility - lifetime ( ut ) product, which are required for room - temperature nuclear radiation detectors. so it is widely used in nuclear medical imaging system, space engineering, and astrophysics, environmental monitoring, and so on. in addition, it is the best substrate for lattice matched epitaxial growth of hg1 - xcdxte ( mct ) thin films and solar cells
用單晶czt製成的探測器可在室溫下工作，工作溫度范圍寬（ - 20 40 ） ，能量探測范圍寬（ 10kev 6mev ） ，對x射線、射線能量解析度高，在x射線、射線成像、天體物理研究、工業探測、安全檢測、核輻射探測、核廢料監控、 x射線熒光分析（ xrf ） 、 x射線斷層掃描和核醫學等方面有重要用途。 -
Luminescence is caused by chemical, biochemical, or crystallographic changes, the motions of subatomic particles, or radiation - induced excitation of an atomic system
發冷光是由化學，生化或結晶變化，亞原子顆粒的運動，或原子系統的輻射產生的。 -
Some 250 commercial and military satellites now orbit in the lowest altitudes, according to the satellite industry association, and most of them are defenseless against the radiation that would be released by a high - altitude atomic burst
數目不斷增加的人造衛星為我們提供通訊、導航、無線與有線電視，以及地面攝影與天氣預報等服務。 -
Water quality - determination of total mercury by flameless atomic absorption spectrometry - part 2 : method after pretreatment with ultraviolet radiation
水質.用無火焰原子吸收光譜法測定總汞含量.第2部分:用超聲波輻射預處理后的方法
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