nuclear threshold 中文意思是什麼
nuclear threshold
解釋
核門檻-
An analytical mosfet threshold voltage shift model due to radiation in the low - dose range has been developed for circuit simulations. experimental data in the literature shows that the model predictions are in good agreement. it is simple in functional form and hence computationally efficient. it can be used as a basic circuit simulation tool for analysing mosfet exposed to a nuclear environment up to about 1mrad. in accordance with common believe, radiation induced absolute change of threshold voltage was found to be larger in irradiated pmos devices. however, if the radiation sensitivity is defined in the way we did it, the results indicated nmos rather than pmos devices are more sensitive, especially at low doses. this is important from the standpoint of their possible application in dosimetry
該模型物理意義明確，參數提取方便，適合於低輻照總劑量條件下的mos器件與電路的模擬。並進一步討論了mosfet的輻照敏感性。結果表明，盡管pmos較之nmos因輻照引起的閾值電壓漂移的絕對量更大，但從mosfet閾值電壓漂移量的擺幅這一角度來看，在低劑量輻照條件下nmos較之pmos顯得對輻照更為敏感。 -
When the energy distribution of secondary neutron are represented by evaporation spectrum ( lf = 9 ), care must be taken in describing the nuclear temperature near the threshold
通過分析發現，評價次級中子能譜數據所採用的蒸發譜模型大都忽略了能級密度參數與激發能之間的關聯。 -
Historians often describe the discovery of nuclear power as a kind of threshold in human history ? a fire wall through which our culture has passed and cannot return
歷史學家們常常形容原子能的發現像是人類歷史的一扇門，通過了這堵火墻後人類的文明將成為歷史並一去不復返。 -
Detection limit and decision threshold for nuclear radiation measurements - part 5 : counting measurements by high resolution gamma spectrometry, neglecting the influence of sample treatment ; examples and comments
核輻射測量的探測極限和決策門限.不考慮試樣處理影響 -
“ in another type of prediction, an immediate alert, seismic waves above a certain threshold send an electronic alert, which, with a lead time of several seconds, can be used for such things as shutting down nuclear reactors, gas and electricity grids, and the like
「在另一種類型的預測中，即即震報警，超過一定限度的震波將發出電子報警，比發震時間有幾秒鐘的提前量，可以用於關閉核電站反應堆、燃氣和電力網等。
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