核合成 的英文怎麼說

中文拼音 [hégěchéng]
核合成 英文
nuclear synthesis
  • 核 : 核構詞成分。
  • 合 : 合量詞（容量單位） ge, a unit of dry measure for grain （=1 decilitre）
  • 成 : Ⅰ動詞1 （完成; 成功） accomplish; succeed 2 （成為; 變為） become; turn into 3 （成全） help comp...
  1. Studies on heterobinuclear complexes of ln3 and zn2 with acyclic polyether schiff base

    異雙核配合物的合成和表徵
  2. In general, ba stars belong to binary system, and their heavy - element overabundances are due to the accreting material from the companions ( the former tp - agb stars and the present white dwarfs ). carrying out a series of monte - carlo simulations, the changes of orbital elements of binaries are recalculated for wind accretion scenario of the total angular momentum conservation

    研究表明，鋇星應該屬于雙星系統，其重元素超豐來自雙星吸積，它的伴星已經經歷了s -過程核合成，而且由在以前發生的同其伴星（以前是agb星，現已演化為白矮星）的質量傳輸過程中，從伴星那裡獲得了富含重元素的物質，這樣造成了鋇星的重元素超豐。
  3. Brief introduction of three quarantine diseases in maize

    超重核合成理論模型簡介
  4. By observing the energy band of hard x - ray, people not only can expand a series of studies to celestial bodies or phenomena of nova and supernova ' s breaking out, nucleus ' s compose, but also many interactional process of thermal braking radiation, synchronal radiation

    硬x射能區的天文觀測一方面可以研究一系列的天體目標或超新星和新星的爆發、核合成等現象，另一方面也可以研究一系列的相互作用的過程：熱韌致輻射、同步輻射等。
  5. Big - bang nucleosynthesis

    大爆炸核合成
  6. Topics include : planets, planet formation ; stars, the sun, " normal " stars, star formation ; stellar evolution, supernovae, compact objects ( white dwarfs, neutron stars, and black holes ), plusars, binary x - ray sources ; star clusters, globular and open clusters ; interstellar medium, gas, dust, magnetic fields, cosmic rays ; distance ladder ; galaxies, normal and active galaxies, jets ; gravitational lensing ; large scaling structure ; newtonian cosmology, dynamical expansion and thermal history of the universe ; cosmic microwave background radiation ; big - bang nucleosynthesis

    課程的主題包含了：行星、行星形成；恆星、太陽、正常的恆星、恆星形成；恆星演化、超新星、緻密天體（白矮星、中子星及黑洞） 、波霎、雙x -射線源；星團、球狀及疏散星團；星際介質、氣體、塵埃、磁場、宇宙射線；距離階梯；星系、正常及活躍星系、噴流；重力透鏡；大尺度結構；牛頓宇宙學、宇宙的動力膨脹及溫度發展歷史；宇宙背景微波輻射；大霹靂核合成。
  7. Moreover, we compute the change against neutron irradiation of heavy element abundance in typical branching point 85kr of s - process and result is good agreement with the former too

    重元素的核合成中最重要的因素之一是中子源問題，穩定的中子源是重元素的核合成必要保證。
  8. ( 2000 ). the neutron irradiation is assumed to derive primarily by the reaction 13c ( a, n ) i60 with a minor contribution from the marginal burning of 22ne through the channel 22ne ( a n ) 23mg in the final, high temprature phase of each flash. and we considered the influence of the various parameters such as the initial core mass, the envelope mass, the mass - loss rate, the overlap factor and the delution factor etc., and we vary their value with the pulse number

    本文採用分叉s -過程反應通道，以~ （ 13 ） c （ ， n ） ~ （ 16 ） o 、 ~ （ 22 ） ne （ ， n ） ~ （ 25 ） mg為雙脈沖中子源，用最新的中子俘獲截面，利用gallino和busso等人給出的agb星三殼層核合成模型，考慮到核心質量、挖掘程度、重疊因子、稀釋因子及星風質量損失率隨脈沖數的變化，詳細計算和研究了各個金屬豐度情況下的3m 。
  9. The average abundance distributions of heavy elements in metal - poor stars can provide fairly direct and detailed information on the nucleosynthesis in every stage after the formation of galaxies. furthermore, it can put more accurate constraints on the chemical evolution of neutron - capture elements. the solution to this problem will have important effect on the solution to a series of problems about nuclear astrophysics and the galactic evolution

    貧金屬星的中子俘獲元素豐度分佈能提供星系形成后各個階段核合成的較為直接和詳細的信息，並為星系化學演化的研究提供更為準確的約束，這一問題的解決將對核天體物理及星系化學演化的一系列問題的解決產生重要影響。
  10. Synthesis and characterization of rare earth tb3 - trimesic acid fluorescence complexes

    過程核合成的場所和重元素豐度的離散
  11. It is very significant for ba stars to heavy - element nucleosfynthesis and galactic chemical evolution

    鋇星對于重元素核合成及星系化學演化的研究都有非常重要的意義。
  12. Nuclear astrophysics involves study of the synthesis of elements and the evolution of cosmic sites where such syntheses occur

    核天體物理學的中心內容是元素核合成及其天體演化的研究。
  13. Big bang nucleosynthesis

    大爆炸核合成
  14. S - process nucleosynthesis may be a useful constraint for the evolution and convection in massive stars

    過程核合成可以為大質量星的演化和對流提供有用的約束。
  15. In this dissertation, the theory of radiative capture reaction and the s - process of nucleosynthesis of heavy element of astrophysics have been investigated

    本文研究了輻射俘獲反應理論和天體重元素核合成的s ?過程。
  16. Among the evolution is the chemical evolution of the galaxy showing its exceeding importance. the recognize to the galaxy chemical evolution build up the basement of understanding the whole galaxy evolution. and it can restrict and constrain the evolution and ncleosyhthesis of the stellar

    其中銀河系的化學演化在其中更是具有極其重要的地位，對銀河系化學演化的認識是理解整個銀河系演化的基礎，並對恆星演化與核合成理論提供約束。
  17. Adopting single pulse neutron exposure 22ne ( a, n ) 2dmg and the updated neutron cross section, making use of the core helium burning model of the single neutron exposure theory, we calculate the s - process nucleosynthesis in massive stars at different mettalicity and compare the results with the solar s - weak component

    我們採用單脈沖中子源『 zne （ a ， n ） zsmg ，採用最新發表的中子俘獲截面，用中心氦燃燒模型計算了各金屬豐度情況下15m m叼0m 。的大質量星的s過程核合成，並將所得結果與太陽的s刁分量進行比較。
  18. This letter aiming at this respect, hints for neutron capture element are derived : 1. based on the adopted galactic evolution scenario, together with the three - zone multi - phase model, observational features of the solar vicinty region can be well reproduced. among those are particuly g - dwarf problem. the g - dwarf problem in halo and thin - disk can be solved

    本文正是從這方面著手，對中子俘獲元素進行了研究，得到如（ 1 ） r過程元素核合成產量隨著超新星前身星的質量的增加而單調增加， r -過程核合成場所是sn ，質量范圍是18m _ m 50m _ ，這與mathews 、 tsujimoto和travaglio等人的結果完全不同。
  19. Simultaneously, enhancement of the cross section must has had been played an important role in astrophysical nuclear process. we investigate the s - process of nucleosynthesis of heavy element of astrophysics and give a group of analytic solutions for the s - process. to check up the analytic solutions, we calculate the n distributing of the heavy element of s - process in solar system and the result is good agreement with astronomic measurement

    我們研究了天體重元素核合成的s ?過程，給出了s ?過程網路方程的一個解析解，作為對本文解析解的檢驗，我們計算了太陽系的s ?過程重元素豐度的n分佈，計算結果與天文觀測符合的較好；另外，我們還計算了s ?過程的典型分叉點~ （ 85 ） kr處各個核素的豐度變化，與已有的結果符合的較好。
  20. The dissertatation consists of two sections. the first one mainly intrduce the chemical evolution model and observational constrain, and the second mainly intrduce the ncleosyhthesis of r - process and the chemical evolution of ba peak elements the formation and evolution of the galaxy has long been a basic and important branch and one of the most active frontiers in the fields of astrophysics

    本文分二部分，第一部分重點介紹星系的化學演化模型和觀測約束，第二部分重點介紹r - process核合成和ba峰元素r - process的星系化學演化。
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