輻射離解 的英文怎麼說
中文拼音 [fúshèlíjiě]
輻射離解
英文
radiative dissociation-
No other gases would be present to prevent ultraviolet solar radiation dissociating water vapour at the top of the atmosphere.
沒有其他的氣體去阻止紫外太陽輻射離解大氣層頂的水汽。Since there exists ill - posedness in reconstructing velocity on the surface and reconstructing pressures in the field, this paper attempts to introduce an iterative regularization method to resolve such inverse problems
由輻射聲壓重構結構表面振動速度和聲場聲壓存在解的離散病態問題，試圖利用一種迭代正則化方法來解決此類逆問題。In our algorithm, we separate out the singly scattered radiation and apply the normal four - stream approximation of stamnes " s discrete - ordinate - method to the multiply scattered radiation alone
我們將單次散射輻射分離出來單獨求解，對于多次散射，單次散射作為其輻射源，用kuntstamnes的離散縱標法作四流近似計算。This effects can be explained as follows : the radiation conditions are actually impedance matching condition in terms of microwave network, for a fixed dimension of a resonator and output transformer, only below the critical plasma density ", the matching condition can be satisfied in the smith circle map
我們提出，這一現象可從阻抗匹配的角度來解釋。對於一確定尺寸的腔體、阻抗變換器，存在一個等離子體密度的臨界值，只有在等離子體密度低於這個臨界值時，腔體的輸出阻抗和波導的特性阻抗才能滿足匹配，即滿足所謂的輻射條件。Based on the viewpoint of interaction between waves in plasmas, the partial differential equation that causes the spectral lines broadening has been deduced from radiation transfer equation of high - frequency electromagnetic waves in plasmas. the numerical solution has been obtained by using the fortran program we compiled. we concretely calculated the spectral lines widths of and fraunhoferx 3704 in corona, fj / a4923. 9 in dwarf nova oy car and f. / a4934 in the variable star rr lyrae
本文從等離子體波與波相互作用觀點出發，由高頻電磁波輻射轉移方程導出了引起譜線寬度變化的偏微分方程，編寫fortran程序求解偏微分方程的數值解，具體計算了日冕綠線f _ exiv 5303和夫朗禾費線3704 、矮新星oycarf _ eii 4923 . 9 、天琴rr型變星f _ ei 4934的譜線加寬值，對以上各譜線加寬中的等離子體致寬效應作了初步計算。It proves that the accuracy of the obtained photon fluence by this kind of method is acceptable. overall, pulse photon fluences in the pulse accelerator and the radiation field caused by pulse reactor have been obtained by strict experimental studies and theoretical calculation in this paper. it provides the technological support to calibration of detectors for physical diagnosis in nuclear exploding
簡而言之，通過嚴格的實驗研究和理論計算，本文測得了12mv脈沖加速器的x射線譜和liftld對較寬能區的中子的let效應因子值，並通過研製的均勻固體電離室測得了脈沖加速器和脈沖堆輻射場的光子注量，解決了幾個相關的技術難題，為核爆診斷探測器的標定提供了技術支撐。Recently, a new gene dr0167 ( pprl or irre ) that serves as a general switch for downstream dna repair and protection pathways via its regulatory function on the gene expression of reca, ppra was discoveried. expression of d. radiodurans pprl also promotes dna repair and protection pathways and enhances the radioresistance of e. coli. this finding provides a new clue to understand the mechanism of dna repair, especially double strand break ( dsb ) repair
最近我們實驗室在耐輻射球菌電離輻射敏感株中鑒定了一個與電離輻射抗性相關的基因ppri ，該基因可能通過調控dr細菌reca 、 ppra等基因的表達加速對電離輻射引起的dna損傷修復，而在大腸桿菌中表達ppri基因能促進reca 、 soda等表達水平顯著提高，使其抗輻射和抗氧化能力明顯增強，這將為我們理解其特殊抗性機制，特別是雙鏈斷裂修復提供新的線索。Determination of the detection limit and decision threshold for ionizing radiation measurements - fundamentals and application to counting measurements by high resolution gamma spectrometry, without the influence of sample treatment
電離輻射測量用探測限值和判斷閾的確定.基本原則和對不經過樣品處理的高解析度能譜法計數測量的應用It is important to find a precise and fast algorithm for solar radiative transfer in the atmosphere. in this paper, we present, based on stamnes " s discrete - ordinate - method, an analytical four - stream approximation algorithm
我們在knutstamnes的離散縱標法（ 1988 ）的基礎之上，提出了一種輻射傳輸四流近似計算方法，並且該演算法可以得到一個解析解。In order to meet the requirements of radioactive waste management and nuclear facilities decommissioning, implementations of some stipulations of the 《 basic standards for protection against ionizing radiation and for the safety of radiation sources 》, such as exclusion, exemptions, clearance, discharge, disposal of spent sealed source, decontamination, minimization of radioactive waste and protection optimization, etc, and it is indicated that some of these issues need to be further investigated
摘要從滿足放射性廢物管理和核設施退役工作的需要出發，討論了《電離輻射防護與輻射源安全基本標準》中有關排除、豁免、解控以及排放、廢源處置、去污、廢物最少化、防護最優化等幾項規定的實施問題，並對其中一些問題提出了繼續深入研究的意見。Numerical characteristic parameters of meshless method have been investigated in solving radiative heat transfer problem. meshless method is also extended to solve the transient radiative transfer equation. the main work includes the following four aspects of investigations
本論文主要研究內容包括以下四個方面: 1 .在輻射傳遞的離散坐標方程基礎上，建立了均勻折射率介質內輻射傳遞方程求解的局部彼得羅夫伽遼金無網格法。These methods can be divided into two types. one is the methods based on the ray - tracing technique, such as monte - carlo method, zone method, discrete transfer method ; the other is methods based on the discretization of radiative transfer equation, such as discrete ordinate method, finite volume method, finite element method and so on
目前輻射傳遞問題的求解方法可分為兩類，一類是以射線蹤跡為基礎的方法，如蒙特卡洛法、離散傳遞法、區域法等;另一類是基於輻射傳遞方程離散的方法，如離散坐標法、有限體積法、有限單元法等。Plasma erosion opening switch ( peos ) is a critical device used in the pulsed power apparatus for modern radiation physics and inertial confinement fusion research. there is no perfect theoretical description or model for pegs presently, and the switching phenomena differ from system to system. in addition, there is still much to do for the improvement of performance
等離子體融斷開關（ peos ）是現代輻射物理和慣性約束聚變等研究領域中脈沖功率技術的關鍵部件之一，其工作機理目前尚無完善的理論解釋和物理模型描述，實驗現象因裝置的多樣性而差別較大，開關性能則有待進一步的提高。Abstract : the steady temperature field in irregular plane domain with radiation heat exchange boundary is analyzed by the boundary, discrete method, and the solution in form of series is obtained
文摘:採用邊界離散方法對具有輻射換熱邊界的平面非規則域內穩態溫度場進行了分析，得到了級數形式的解。分享友人