誘發裂變 的英文怎麼說
中文拼音 [yòufālièbiàn]
誘發裂變
英文
induced fission-
Many of the heaviest nuclei can be induced to break up into two fragments of intermediate size, a process called nuclear fission.
許多最重要的原子核能被誘發分裂為兩塊大小適中的碎片,這一過程稱為核裂變。The mice showed also ageing - associated decline in oocyte quality, as indicated by increased frequency of premature chromatid separation, spindle disruption and / or chromosome misalignments in mii oocytes of aged mice. the gv oocytes from aged mice normally matured in vitro. the percentages of pronuclear - stage embryos, 2 - cell embryos and blastocyst derived from mii oocytes of aged mice by in vitro fertilization ( ivf ) were comparable with ones of young mice, but pronuclei formed 1 h later in aged mice than in young mice
老齡小鼠gv期卵母細胞能正常體外成熟;老齡小鼠m期卵母細胞經體外受精后形成原核期胚、 2 -細胞期胚和囊胚的比率與年輕小鼠比較無顯著差異,但原核形成時間延遲1小時;在老齡小鼠卵母細胞,注射牛精子抽提物或sr ~ ( 2 + )處理時所誘發的ca ~ ( 2 + )振蕩以及在減數分裂成熟及早期胚胎中的pkc分佈未發生改變。The simulation can be divided into three processes sequentially : calculating the induced fission neutron rate of uranium and space distribution by mam - li neutron source, computing the total uranium fission neutron count rate and time distributions of 42 3he tubes, and calculating the neutron coincidence counting rate
第一步,以ain ? li源為中子源,計算鈾的誘發裂變中子產生二率及空間分佈;第二步,以鈾的誘發裂變中子為中子源,計算化根』 ne管的總中子計數率及時間分佈;第三步,計算中子符合計數率。Detecting nuclear warhead by counting delayed neutrons induced by neutron source is studied. the 2 - step calculation method is proposed to resolve the delayed neutron transportation issue. this method can save computer ' s calculation time, and is easy to operate
本文研究了用外中子源照射核彈頭,誘發其裂變材料裂變,探測緩發中子的方法,以此判斷高濃鈾與低濃鈾,從而為核查核彈頭的真偽提供依據。With the outer neutron source which can only induce 235u fission, it could possibly prove the presence of heu in a warhead by counting the coincidence neutrons. this method possibly provides one of necessary attributions in identifying the real nuclear warheads
本文研究了用中子符合探測方式測量能量低於1mev的外中子源在核彈頭中誘發的裂變數,以判別模型中是否含有高濃鈾,從而作為判斷核彈頭的真偽的可行性。The cell division element class plant growth regulator is one kind of promotion plant being of ability to promote the vegetable cell fission and the variation, delay the leaf blade senescence, promote lateral bud growth, break the apical dominance, induce injuries of the organization, split up the different organs and promote chloroplast growth and synthesis
細胞分裂素類植物生長調節劑是一種促進型植物激素,能夠促進植物細胞的分裂和變異,延緩葉片衰老;促進側芽發育,打破頂端優勢;誘導愈傷組織,分化成不同器官;促進葉綠體的發育和合成。The results shcw that the aggregation of inclusions is the internal cause of copper pipe cracking while the thermal stress formed during welding and bending deformation are another two important factors
結果表明,夾雜物局部偏聚是銅管斷裂的內在原因,焊接時產生的熱應力及彎曲變形是銅管斷裂的外部誘發因素。Most of them are fatigue cracks, which are mainly caused by the excessive alternating stress induced by fluid solid coupling resonance
大部分葉片裂紋是疲勞裂紋,主要由流固耦合共振誘發的過大交變應力引起。The method of numeral simulating the coincidence neutron detection is proposed with combining the neutron transportation and probabilistic calculation. the method is introduced and used to simulate the nuclear warhead induced fission by source neutrons with energy below 1 mev
推導並提出用中子輸運計算與概率方法結合計算符合中子計數,對能量低於1mev的外源中子照射核彈頭誘發裂變的符合中子測量作了數值模擬。In addition, the dna dsbs induced by heavy ions were also analyzed by gel electrophoresis technology, and compared with afm results
此外,使用凝膠電泳技術也對輻射誘發的dna鏈斷裂情況進行了分析,得到了dna分子形態隨劑量的變化規律,並與afm結果進行了比較。分享友人