瞬發中子 的英文怎麼說
中文拼音 [shùnfāzhōngzi]
瞬發中子
英文
instantaneous neutron-
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。There is no sky in june so blue that it does not point forward to a bluer, no sunset so beautiful that it does not waken the vision of a greater beauty, a vision which passes before it is merely a bad joke, life a vulgar flare amid the cool radiance of the stars, and existence an empty laugh braying across the mysteries ; if these intimations of a something behind and beyond are not evil humor born of indigestion ; or whimsies sent by the devil to mock and madden us ; if, in a word, beauty means something, yet we must not seek to interpret the meaning
沒有任何一片六月的天空可以碧能夠藍得如此完美無法再藍，沒有任何一輪落日能夠如此美麗，得令人無法再激起更美的視覺感受，即使因為那視覺感覺立足未穩便是轉瞬即逝，只在飄過的葉子里留下無法言傳的渴望與遺憾；但是如果這個世界不只是一個惡作劇，如果生命不只是群星冷清的光輝中一束人間的火花，如果存在不只是在解釋神秘時發出的刺耳冷笑；如果對于在我們身後和另一邊的世界給我們的這些提示並非不是由於無法理解的邪惡本性而產生的失望心情；也並非不是惡魔派來愚弄和逼瘋我們的古怪念頭的話；總而言之，如果即使美麗有其意義，但我們也不允許決不要苛求試圖去解釋它。The expression efficiency difference between ped5 and pcdhfrl, a vector utilizing cmv enhancer / promoter ( pcmv - ie ) for foreign protein production, was analyzed using human interferon - p ( ifn - ) gene and human secreted alkaline phosphatase ( seap ) gene as reporters. when analyzed in transient expression, ped5 showed a little more protein produciton than pcdhfrl. however, in continuous expression, when serum concentration was lessened to slow down cell proliferation, ped5 expressed 3. 1 times more reporter proteins than pcdhfrl, which implied that pef - io was less affected by cell cycle status in contrast to pcmv - ie, making ped5 a good expression vector for foreign protein production
應用人-干擾素（ ifn - ）和人分泌型堿性磷酸酶（ seap ）基因作為報告基因，對含有巨細胞病毒即早期啟動子（ p _ （ cmv - ie ） ）的表達載體pcdhfr1和ped5表達外源蛋白的能力進行了比較，發現對于瞬時表達， ped5略好於pcdhfr1 ；在穩定表達中，通過降低血清濃度，使細胞增殖緩慢，這時ped5表達外源蛋白的能力較pcdhfr1高3 . 1倍。In particular, it is found that static instantons are just domain wall solutions in the magnetic film. stability of the domain walls is also investigated in terms of the instanton theory
我們發現靜態周期瞬子正是鐵磁膜中的疇壁，用相應的瞬子理論討論了疇壁的穩定性。It is the main purpose of this paper to calculate the energy splitting of ground state and excited states induced by thermally assisted quantum tunneling. first, a brief introduction is given for the theoretical and experimental studies on the magnetic macroscopic quantum effects. then, spin tunneling in a uniaxial ferromagnetic particle in transverse magnetic field is converted to a pseudoparticle moving in effective double - well potential with the help of the effective potential description of quantum spin systems developed by ulyanov and zaslavskii. finally using the periodic instanton method we evaluate the transition amplitude, energy shift and prefactor of wkb exponential and the energy splitting of ground state and the tunneling rate for excited states induced by thermally assisted quantum tunneling are obtained
文章首先對磁性宏觀量子效應的理論和實驗方面作了簡單介紹，然後藉助于ulyanov和zaslavskii發展的一種等效勢描述方法，把外磁場沿難磁化軸方向時的自旋隧穿約化成在等效雙勢阱中運動的粒子，利用瞬子方法給出基態能級劈裂，最後利用周期瞬子方法分別計算了隧穿幅、能級移動以及wkb前因子，從而給出由於熱助量子隧穿引起的激發態的隧穿率。The results show that the method is better than the method of counting prompt neutrons in distinguishing real and fake nuclear warheads
數值模擬表明，這種方法比計數瞬發中子總數有較大的優點，可用來探測鈾為彈芯的核彈頭。Since polymer light - emitting diodes ( pleds ) were invented, much efforts have been made to improve the brightness and efficiency of its electroluminescence for realizing pled commercial application. we investigated several factors influencing the brightness, efficiency and spectrum characteristics of pleds el, especially focused our attention on the processes of carrier injection, transport, recombination and annihilation factors influencing brightness efficiency of organic electroluminescence ( oel ) in doped single and double - layer pleds
本文以提高聚合物器件的效率和亮度為目標，提出了提高及b幾種方案，研究了材料性質，器件結構，它們的穩態及瞬態特性及發光機理，特別關注了以兼具電子空穴傳輸能力的分子及摻雜聚合物作成的單雙層摻雜聚合物發光器件中的載流子注入、遷移、復合及湮滅等。High spin states in neutron - rich ~ { 104, 106, 108 } mo nuclei have been studied by measuring the prompt - rays emitted after their formation in the spontaneous fission of 252cf. the measurement was carried out at the lawrence berkeley national laboratory
本論文利用在berkeleygammasphere探測裝置上進行的252cf自發裂變產生的瞬發譜實驗測量得到的三維符合數據，對豐中子~ { 104 ， 106 ， 108 } mo核進行了高自旋研究。By measuring high - fold prompt - ray coincidence events following the spontaneous fission of 252cf, the high spin states in very neutron - rich 113ru nucleus have been studied. furthermore, some isomers in neutron - rich odd - a nuclei 107 ， 109 ， 111 ， 113ru have been analyzed
通過對252cf自發裂變產生的瞬發譜的測量，對極端豐中子核113ru的高自旋態進行了研究，並對豐中子奇a核107 ， 109 ， 111 ， 113ru的低激發態同質異能態進行了分析。Working principle : using the low - voltage high - frequency current rtansform from high - tech molectron, conbne traditional energy - channel theory from china, it gets through the energy - channel of body in a breath stimulate bicelectricity of body for therapy, have efficacy of through but indolence it ` s able to adjust metaboilsm, eliminate subhealth, reforning bone, skin etc, fast supply energy for body, at the same time, you can got beauty, health and happiness
工作原理：採用通過尖端電子集成技術轉化的低壓高頻電流，結合中國傳統的經絡理論，瞬間打通人體經絡，激發人體生物進行治療，以達到「通而不痛」的功效，調整代謝，調動潛在的生命能量，消除亞健康，重整經，骨，皮等器官，快速補充人體生命能量，通經活洛，平衡陰陽，增強體內含氧量，調理臟腑，同時美膚修身，以達到身心健康，美好，快樂的境界！This thesis measured the vibration signals of 1 # and 2 # running turbine - generator sets in a generating plant and their vibration signals that are indispensable to the study are gained. firstly, the low frequency faults of machine stand in generator side, rotor unbalance, misalignment, oil whirl, oil whip are diagnosed by fft analysis. secondly, applying wavelet theory to probing the instantaneous abnormal phenomena of the signals and to show their components
首先應用fft分析診斷出1 #和2 #汽輪發電機組存在的發電機側機座松動、轉子失衡、不對中、油膜渦動、油膜振蕩等故障，再運用小波分析探測信號中的瞬態反常現象並展示其成分，比較精確地診斷出了該發電廠運行中的1 #和2 #汽輪發電機組存在的碰摩故障。Baijia people will maintain the vision which throughout takes a long - range approach, strives for perfection the spirit which, innovates unceasingly, in grows, in rapidly the fast changing electronic world the self - perfection, the self - development, by the good faith, the practical manner, anticipates and the user community creates prosperous enterprise
百嘉人將始終保持高瞻遠矚的目光，以精益求精、不斷創新的精神，在急速增長、瞬息萬變的電子世界中自我完善，自我發展，以誠信、務實的態度，期待與廣大用戶共創事業之繁榮。The maximum heating rate of absorber is o. skw. ? h / ? inside experiment fuel rod is much lower than that outside experiment device. influence of absorber movement on thermal neutron flux decreases, as radial distance between absorber and measuring point increases
給出了硼不銹鋼和銀分別做為吸收體的兩種方案的計算結果，即有效增殖因子keff 、中子通量密度分佈、燃料棒功率、吸收體組分及其發熱，並進行了分析、比較，為瞬態試驗裝置的設計提供了參數。So far, existing brain function evaluation techniques includes electroencephalogram ( eec ), magnetoencephalogram ( meg ), positron emission tomography ( pet ), functional magnetic resonance imaging ( fmri ) etc. among them, the technique using event - related potential ( erp ) contained in eeg features high temporal resolution, low costs and convenient application
到目前為止，探測大腦活動的方法有eeg （腦電圖） ， meg （腦磁圖） ， fmri （功能磁共振成像） ， pet （正電子發射斷層掃描）等。其中利用包含在eeg中的erp （事件相關電位）進行的研究，能達到毫秒級的高時間解析度，而且器械成本低應用方便，對探索人腦瞬息萬變的信息處理機能（認知機能）無疑是很有幫助的一項技術。It can be seen from the deformation courses of the tubes that the local dents firstly occur at the beginning of impact. with the growth of the dents, the stiffness decreases, and the rigid - body translations and the whole deformations take place. the initial kinetic energy of the missile decreases rapidly to approximate zero during the course of impact, and the energy is transferred to internal energy and kinetic energy of the tube
同時，也得到了一些實驗中沒有觀察到的現象：從模擬的管梁的變形歷程可以看出，在沖擊瞬時，管梁先發生局部凹陷，隨著局部凹陷的加大，管梁的抗彎剛度減小，然後太原理工大學碩士學位論文剛體平動和整體變形發生，而且速度越大，這種現象越明顯;子彈的入射動能在撞擊過程中急劇減小，撞擊結束后減小到可以忽略不計。It is thought that the exciplex ' s emission is eliminated completely by modulating the transient excited state of exciplex thought varying the ratio of two molecules and by action from the excited state level of rare - earth ions
對于稀土配合物，可以通過控制混合層中的分子比率調制激基復合物的瞬間激發態能級位置，使其與稀土離子的激發態能級匹配，將激基復合物完全消除。In order to extend the exploration depth of the transient electromagnetic instrument, the authors have successfully developed the strong field source transient electromagnetic instrument on the basis of adsorbing ripe technology in electron industry
摘要為加大瞬變電磁儀的勘探深度，通過吸收電子工業中成熟的技術成功研發出了強場源瞬變電磁儀。In the foreign country, neutron induced prompt gamma - ray analysis ? ipga was used to analyze the elements in substance and has been used in real production and industry " s analysis on line now. in our country, the method has been studied and used from 70 " s and has been more and more perfect. however, the neutron source they used is the isotope source
在國外，早已開始採用中子感生瞬發射線分析法（ nipga ）對物質進行元素分析，如今這種方法已經應用於實際生產和工業在線分析，國內在八十年代也開始研究、應用這種方法，如今已日趨完善，然而，他們使用的中子源絕大多數仍然是同位素中子源，做為一種可行性實驗方法研究，我們採用脈沖中子發生器做為中子源，自行研製的線性門電路和多道脈沖幅度分析器相配合，獲取非彈性散射和俘獲譜，對物質進行元素分析。This disseration focuses on a sub - project of the spot responder in the china train control system ( ctcs ). the design objective is to reseach and implement the fsk signal transmitter and receiver with low power cost and high reliability, according to the fsk signal characteristics in the spot responder system
本論文所研究的課題是中國鐵路控制系統（ chinatraincontrolsystem ， ctcs ）點式應答器的子課題，其目標是根據列車控制信號的特點，對點式應答器系統中的瞬時、低功耗、高可靠性的fsk信號發射機和fsk信號接收機的關鍵技術進行研究與實現。分享友人