輻射壽命 的英文怎麼說
中文拼音 [fúshèshòumìng]
輻射壽命
英文
radiative lifetime-
Compared with traditional mechanical and optic gyros, hrg has such advantages as no high speed circumvolving or moving parts in structure, no warm - up time and short start - up time, wide signal band in frequency, low excursion noises, great endurance in over loading, nuclear radiation and short time power off, small bulk, light weight, low power cost and long life, which is suitable for space applications
與傳統的機械陀螺和光學陀螺相比，半球諧振陀螺具有如下優勢:結構上無高速轉子、無活動部件;不需預熱，啟動時間短;信號頻帶寬，漂移噪聲低;能承受大的機動過載;抗核輻射，並可經受短時間電源中斷的影響;體積小，重量輕，功耗低，壽命長，非常適合空間應用。By introduction of two lif layers, the adjustment of the position of thin layer alq3 in the microcavity is achieved and the effect of the coupling strength between the emissive dipole and vacuum electric - field on the emission intensity in ( / 2 - length microcavity is studied for the first time
在帶有dbr結構的高q值微腔中，觀察熒光壽命變短輻射速率提高的現象。通過使用填充層，來實現對薄層alq在腔中位置的調節，研究了輻射偶極子同光電磁場的耦合強度對輻射強度的影響。Aerostatic bearings have been applied widely on the ultra - precision in the aviation, aerospace and the main axes and the slide of the precision measuring instrument and inertial measuring apparatus because of high rotation accuracy, calm operation, low friction and long life - span etc. they can also be used in fields range from both high and low temperature to both high and low velocity, sometime even to environment full of radioelement
氣體靜壓軸承回轉精度高、運轉平穩、摩擦小、使用壽命長，可以在極高和極低的溫度、超低到超高的速度下，以及輻射環境中工作，因此在航空、航天領域以及精密測量和慣性測試設備上得到廣泛應用。It is designed according to electrical stove or microwave oven request. heating pipe adopts high temperature resistance mgo powder as the insulation medium and the stainless steel case is passed oxidation deal through the advanced web band protection oven 1050c in order to become the a special oxidation layer and improve the high temperature oxidation and bittern corrosive performance of the heating pipe. the heating tube has high power density and strong heat radion. this product with good safe performance can work normally after 3000hrs life test
加熱管選用耐高溫氧化鎂作絕緣介質，不銹鋼外殼經過先進的網帶氣體保護爐1050的氧化處理，形成一種特殊的氧化層，提高電熱管的抗高溫氧化及鹽鹵的腐蝕性能。電熱管的功率密度較高，熱輻射能力強。產品經長達3000h的壽命試驗后，仍能正常工作，安全性能好。By using the multi - configuration dirac - fock ( mcdf ) method, the effects of relaxation and correlation on the transition energies and probabilities of electric - dipole allowed ( el ) resonance and intercombination transitions for 2p53s3 - 2p6 in neutral neon have been systematically studied firstly. and the results of the transition energies and probabilities ( lifetimes ) in length and velocity gauge have been presented. during the calculation, in order to consider the rearrangement effects of the bound - state density and some important correlations, the asfs of transition initial - and final - states were divided according to their angular - momentum and parity and calculated, and different number of csfs were included in the expansion of asfs
本文利用多組態dirac - fork （ mcdf ）理論方法，通過對輻射躍遷初、末態電子波函數的獨立計算以及在原子態波函數的展開中考慮不同數量的組態波函數，系統地研究了弛豫和相關效應對中性ne原子2p ~ 53s ~ （ 1 . 3 ） p _ 1 ~ o - 2p ~ 6 ~ 1s _ 0電偶極共振和復合躍遷的能量以及躍遷幾率的影響，給出了長度和速度兩種不同規范下激發態的能量和輻射壽命；以中性ne原子的研究為基礎，進一步研究了類ne等電子系列離子（ z = 11 - 18 ）較低的激發組態2p ~ 53s和基組態2p ~ 6的能級結構以及各能級間的輻射躍遷特性。At present, the solar cells used on space aircrafts are still mainly si and gaas solar cells. however, the radiation resistance ability of these two materials is poor. since the photoelectric conversion efficiency attenuates rapidly with the radiation, the lifetime of si and gaas solar cells is short and their stability is not satisfied for space applications at van allen belt
目前國內外用於航天器上的太陽電池主要為si和gaas太陽電池，但這兩種材料的抗輻射能力較差，其光電轉換效率由於高空輻射衰減很快，因而壽命短，穩定性差，不能滿足用於vanallen強輻射帶的空間應用需要。The electric heat components and heated components in resistor furnace were regarded as research object, the simplified model was provided on the basis of simplification of studied objects, the thermotechnical theoretical calculation and analysis for it were done by utilizing radiation heat transfer theory, some main factors influencing the temperature of electric heat component were obtained on condition that the hot load for the heated component be constant, thermotechnical engineering scheme by which the service life for resistor component could be prolonged, was raised
摘要以電阻爐中的電熱元件和被加熱元件為研究對象，經過簡化提出簡化模型，運用輻射換熱理論對其進行了熱工方面的理論計算和分析，在被加熱元件熱負荷一定的情況下，得出了影響電熱元件溫度的幾大要點，提出了延長電熱元件使用壽命的熱工技術方案。From some characteristics observed, such as the short lift time, narrow frequency band, fast frequency drift, quasi - periodic pulsation, spike event and complex magnetic structure, it is considered that the radiation mechanism of these events may be principally due to the electromagnetic waves magnified directly by the instable electronic cyclotron
從它們的觀測特徵：短壽命，窄頻帶，頻率快速漂移，及尖峰事件與磁結構復雜的大黑子活動區密切相關等，認為這些事件的輻射機制可能是電子迴旋脈澤不穩定直接放大電磁波所致。Test method for lifetime of infrared heater
紅外輻射加熱器壽命試驗方法The sample with low emitter efficiency has completed as the method of above. this lead to the greatly decrease of the reverse recovery time and the low reverse leakage and forward voltage, especially the excellent temperature character of the leakage. the test date shows that the samples reach the first class of international level
本論文作者通過模擬測試，驗證了課題研究的理論設想，並設計製作了具有低陽極發射效率結構的高壓功率frd ，利用局域鉑摻雜和電子輻照相結合的壽命控制方式，實現器件反向恢復時間的極大減小，並且反向漏電流、軟度因子、正向壓降等關鍵參數也較理想，且具有極佳的漏電溫度特性，達到器件綜合性能的優良折衷，達到國際先進水平。The electron radiation experiment for mosfet ' s is done with general linear accelerator and the simple method to predict the device lifetime by the electron radiation experiment is given
此外，還利用普通；掙山加速器進行了mosfet的電子輻射實驗，並提出了運用電子輻射實驗預測器件壽命的方法。After measuring dark current, photocurrent and response to x pulse of gaas detector before and after 1. 7 mev electronic radiation, the response tune, fall time of trailing edge, full width of half maximum ( fwhm ), sensitivity, carrier life, mobility are researched and contrasted. the result shows that the response speed of detector, time resolution ratio and nonlinear of back edge of output signal have been improved greatly after electronic radiation. though sensitivity of the detector reduces, its measuring range can be widened
為了使探測器的性能得到進一步的提高，我們對其進行了電子輻照改性，並測量了本徵砷化鎵探測器和經過1 . 7mev電子輻照的探測器的暗電流、光電流及對x射線的脈沖響應，並對其響應時間，后沿下降時間，半高寬（ fwhm ） ，載流子壽命，靈敏度進行對比，研究，結果顯示經電子輻照后的探測器的性能得到了改善，使響應速度，分辯率進一步提高，並消除了探測器輸出信號后沿的非線性，雖靈敏度有所降低，反而使其測量范圍得以拓寬。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Long lived radiation
長壽命輻射Vanadium is a candidate element for the first wall material of iter project. so its neutron data are very important. this is the main reason we did such measurement
~ （ 51 ） v是iter工程中第一壁材料的候選核素，在強的14mev中子輻照下長壽命剩餘放射性較少，是重要的結構材料，因此它的一些中子核數據是必須的。The spectra parameters of these crystals can be calculated by the f - l formula, which show that the crystals are applicable for the tunable laser and femtosecond laser because of their large emission broadband ( fwhm 50nm )
用f ? l公式計算了晶體yb3 +的2f7 / 2 2f5 / 2能級躍遷的發射截面、輻射躍遷幾率、輻射壽命等光譜參數。Nx series oscillating plies are made of impored superior stainless steel. the radiation area of the osscillating box is processed specially and the longebity of the box can be prolonged ober 50 % with the same effect. the products can be widely used in preor after processing for electric plating, inbruing and lacquer covering. they have the advantages of cleaning thoroughlu and operating convenientlu without collision
Nx振板系列產品振盒採用進口優質不銹鋼製作，振盒輻射面經過特殊處理，在不影響超聲效果的情況下，振盒壽命增加50 %以上，產品廣泛應用與電鍍、塗裝、電泳、噴漆等工藝的前處理和后處理工序，具有操作方便，清洗徹底，工件之間不碰撞等特點。Based on the actual application experience from more than twenty years in wisco, the favorable effects of saving energy, increasing production and prolonging furnace life - span were gained through reasonably selecting infrared radiant coating with excellent properties for the particular producing conditions of different industrial furnaces
根據武鋼20多年的實際應用經驗，針對不同工業爐具體的工況條件，合理選擇性能優良的紅外輻射塗料，能夠取得良好的節能、增產和延長爐子使用壽命的效果。分享友人