核子動量 的英文怎麼說
中文拼音 [hézidòngliáng]
核子動量
英文
nucleonic momentum-
Tumor necrosis factor ( tnf ), a cytkine that exerts many pro - atherosclerotic effects in vivo, causes up - regulation of acat - 1 gene expression in human blood monocytes. by luciferase activity assay, tnf - a enhanced acat - 1 p7 promoter activity in thp - 1 monocytic cell line
細胞因子tnf -即腫瘤壞死因子大量存在於人動脈粥樣硬化斑塊中,本實驗通過熒光素酶活性和rt - pcr測定結果表明, tnf -處理人血單核細胞和單核細胞株thp - 1均增強acat - 1基因p7啟動子活性。In analyzing the neutron active detection, the neutron multiplication in the nuclear warheads induced by outer neutron source with different neutron energys is studied with numeral simulation, and the feasibility of through counting neutrons to determine the presence of high enrichment uranium ( heu ) in nuclear warhead has been proved. the method of detecting the warhead which contains heu pit by counting the released neut rons whose energy is higher than that of source neutron is studied. the feasibility of this method has been studied
對幾種主動探測核彈頭方法進行的研究中,首先對不同能量各向同性外源中子照射核彈頭的中子增殖行為進行了數值模擬,檢驗了用外源中子照射核彈頭后,通過測量瞬發中子在核彈頭中的增殖量,來證明核彈頭中高濃鈾存在的可行性;研究了用能量低於1mev的外中子源照射核彈頭,用測量核彈頭中裂變產生的高於源中子能量中子數的方法探測核彈頭,通過數值模擬分析了可行性。During its brief existence, the pion carries momentum from one nucleon to the other.
在它短暫的存在期間內,它將動量從一個核子帶到另一個核子。Electron has an intrinsic angular momentum in addition to the orbital angular momentum due its motion about the nucleus.
電子除了繞原子核運動的軌道角動量外還有內在的角動量。Based on the revers kinetic intermediate energy heavy ion collision in which much more intermediate mass fragments are emitted towards forward angles, a sensitive observable on isospin effects in heavy ion collisions is investigated by means of using isospin dependent quantum molecular dynamics ( iqmd )
摘要在重離子碰撞過程中,基於重質量的彈核轟擊輕質量靶核有大量中等質量碎片向前發射的逆運動學效應,利用同位旋相關的量子分子動力學觀察和研究了重離子碰撞過程中同位旋效應的靈敏性。Considering the diffuseness of the n - n scattering in the forward direction results in an increased reaction cross section. and also the angular distributions calculated in the glauber theory including these two corrections are in good agreement with the experiment data. in the investigation of the halo nucleus reaction with a loosely bound structure, one has to consider the strong spatial correlations among its constituents
考慮了低動量轉移的核子?核子兩體散射在朝前方向上的彌散,使計算得到的反應截面增大,而且我們從彈性角分佈的分析中得到考慮了有限力程修正的效應無論是在峰的位置還是角分佈的絕對值都能更好地符合實驗。Since in the few - body glauber theory the core and valence nucleons of a halo nucleus are treated separately, the obtained expressions of the reaction cross section, the nucleon removal cross section and the momentum distribution are all involved in multidimensional integrations
由於在少體近似glauber模型中暈核被分成核芯和暈核子來處理,所以得到的暈中國原子能科學研究院博士學位論文核散射反應截面、核子逃逸截面以及動量分佈的計算公式均包含高重積分。Our nations must demonstrate a global leadership on these critical environmental challenges, perhaps the most dangerous current one and that is climate change. the united states and china are leading producers of greenhouse gases
不過,我們也必須預防,萬一我們的軍力、武器管制協定及核子嚇阻力量,仍無法阻止一些狂熱國家對美國或其武裝部隊發動飛彈攻擊。The study of the effect of the momentun distribution of target nucleons on the scdw calculation is performed, which shows that the larger nucleon momentum compenents affect the double differential cross sections at backward and forward angles, while smaller nucleon momentum compenents affect the cross sections near the qes angle
本文還分析了核子動量分佈對scdw模型雙微分截面計算的影響,發現大動量的核子成分的增加會導致截面計算值在大角度區域和極小角度區域的增大;小動量核子成分的減小會導致截面計算值在準彈性散射角附近的減小。That is the following in essence. a sufficient mass of cold matter will necessarily collapse to a black hole, and stars with different mass will evolve into the white - dwarf - star, the neutron - star or the black - hole eventually because of the radiation of the burning core. the collapse of stars with sufficient mass leads to a black hole endowed with mass and charge and angular momentum, no other adjustable parameters : " a black hole has no hair.
第二章簡單介紹一下「黑洞無毛」理論形成,即足夠質量的冷物質能夠塌縮成黑洞,不同質量的恆星由於核燃燒輻射最終會演化成為白矮星、中子星或黑洞,以及黑洞的終態系統唯一地由質量、電荷和角動量確定,而無其它物理參數,此即為「黑洞無毛」理論。Discusses in detail the microscopic nature of various physical quantities characterizing the intrinsic attributes of hydrogen atom to prove that the hydrogen atom ' s quantum energy, the inner quantum orbital momentum of electron and the relative quantum distance between atomic nucleus and electron all relate to the quantum state of the atomic system
摘要闡述了表徵氫原子內在屬性的各種物理量的微觀本質,證明氫原子系統的量子能量、系統內部電子的量子軌道動量及原子核和電子的量子相對距離均與原子系統所處的量子狀態有關。These experimental results show that < q12 > is independent of the dimuon mass and logitudinal momentum, and imply the scattering of the incident quark within the target nucleus. by means of the glauber model, the difference of the mean transverse momentum squared < qt2 > is studied for the dependence of the incident proton energy and nucleus. the theoretical results are in good agreement with the fnal e772 experimental data
本文利用多重散射的glauber模型,討論了入射夸克在原子核中傳播的多重散射效應,給出了兩個不同的核drell - yan過程產生的末態輕子對橫動量平方平均值的差值對入射粒子能量核靶核的依賴性關系,計算結果與e772組的實驗數據符合甚好。Particularly an analytical expression for the longitudinal momentum distribution is derived if the density distribution of halo nucleons is assumed as a gaussian type function. a direct connection of the width of the momentum distribution to the bound state wave function of halo nucleons is established
特別是在暈核子的縱向和橫向密度分佈可分離的情況下,如高斯密度分佈,進一步求解了縱向動量分佈寬度的解析形式,建立了分佈寬度與暈核子束縛態波函數之間的直接聯系。This paper introduced a following technicque. the problem of continuously measuring the material level in a wide range using a point radiation source can be solved perfectly with this technique
摘要介紹了一種隨動跟蹤技術,採用該技術的核子料位計較好地解決了利用點輻射源進行大量程連續物位測量的問題。For example, a single electron in an unexcited atom is pictured classically as a particle moving in a circular trajectory around the atomic nucleus, whereas in quantum mechanics it is described by a static, spherically symmetric wavefunction surrounding the nucleus
例如,單個電子在不活躍原子里被經典描述為粒子圍繞原子核圓形運動,但是在量子力學里它通過用靜止、圍繞核子的球對稱波函數來描述。The improved pick - up mechanism is still employed to calculate composite particle emission in this model
在這一模型中,整個核反應粒子發射過程中嚴格遵守了角動量,宇稱守恆和能量守恆。Although we only worked on two toy models, the methods and some of the results can be used to study medium effects in more realistic systems, such as nuclear matter ( hadronic dynamic models ), electromagnetic plasma ( hot qed ) and qgp ( hot qcd )
雖然_ 6 ~ 3和標量qed是兩個理想模型,但是其研究方法和某些結果亦可運用於實際的研究系統中。比如,核物質(強子動力學模型) 、電磁等離子體(熱qed )和夸克膠子等離子體(熱qcd ) 。The operation and first collisions of au nuclei in the relativistic heavy ion collider ( rhic ) at brookhaven national laboratory ( bnl ) during year 2000 began a new era in the study of nuclear matter at high energy density and the search of quark - gluon plasma ( qgp )
原子核又是由核子通過強相互作用而結合在一起的。強相互作用的基本理論,量子色動力學( qcd ) ,指出所有參與強相互作用的基本粒子都是夸克( q )及反夸克( ( ? ) )的束縛態。There are several ways to obtain the dbhf self - energy from the g matrix used before, such as a simple method, where the dirac structure of the nucleon self - energy is obtained from the momentum dependence of the single - particle energy, and a projection method. all of them have their drawbacks
通常的從動量依賴的單粒子能量中提取自能的辦法和投影方法都具有一定的局限性,最近,由schiller和muether發展了提取核子自能dirac結構的新方法,即把g矩陣分解為裸相互作用部分v和關聯效應部分g 。A nuclear dependence of the qt distributions, should also occur for high - mass pairs produced in nuclear drell - yan process. in 1987, the na10 collaboration in cern present the first clear evidence for a nuclear dependence of the transverse momentum distribution of massive muon pairs produced in hadronic interactions
在高能強子反應中,末態強子的大橫動量分佈具有明顯的核相關性,這種效應也應出現在高能核drell - yan過程的大質量輕子對產生過程中。分享友人