裂變子體 的英文怎麼說
中文拼音 [lièbiànzitǐ]
裂變子體
英文
decay daughter-
In spermatogenous cell, we could find dilated cytolemma, dilated nuclear membrane and fused crista of mitochondria. most of the sperm ' s cellular membrane dissolved and broke down into pieces. the central granule and mitochondrion showed little dissolving
久效磷可以使金魚精子細胞質膜溶解,出現間斷性斷裂;有的精子頭部變形,頂部出現凹陷;少量精子頸部中心粒復合體溶解;精子頸部線粒體有溶解現象,精子尾部的膜結構斷裂。Using the young seedlings of wild type ( wt ) and four mutants ( phya, phyb, phyaphyb and hy4 ) of arabidopsis thaliana as plant materials, the effects of light quality and kinetin ( kt ) on some photomorphogenesis responses such as cotyledon enlargement, hypocotyl growth inhibition, accumulation of chlorophyll and anthocyanin were investigated in the present study. photoreceptor functions and interaction of light and kt in the responses was examined and discussed
本文以擬南芥( arabidopsisthaliana )野生型( wt )和四種光突變體phya 、 phyb 、 phyaphyb和砂hy4為材料研究不同光質與細胞分裂素( kt )對幼苗子葉擴大、下胚軸伸長、葉綠素和花色素苷積累的影響,分析光受體參與的反應以及探討光與kt在調節各種反應中的相互關系。On land, meridional, a bispherical moon, revealed in imperfect varying phases of lunation through the posterior interstice of the imperfectly occluded skirt of a carnose negligent perambulating female, a pillar of the cloud by day
陸地上,朝著南方,以雙球體的月亮為標志:一個正徜徉著的豐腴邋遢女人那沒有完全遮住的裙子後面,從裂縫里露出太陰月那不完整起著變化的月相。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。It seems the ncz silicon has a higher bdt temperature compared with cz silicon ' s. it is suggested that the elastic effects and the electronic effects of nitrogen doped in silicon made the bdt temperature higher. the observation of fracture surface showed that it was curves at high temperature in brittle fracture, but smooth planes at room temperature
當溫度升高達到硅材料的脆塑轉變時,材料的斷裂強度有個很大的提高,但是首次發現含氮硅單晶卻不明顯,而且摻氮的硅單晶脆塑轉變溫度比普通單晶高,可能是氮的摻入改變了硅材料的內部晶體結構及電子結構。This paper mainly aims at the strategic demands for large - aperture lightweight mirror proposed by high - tech development. its main research contents are : select material blank for lightweight mirror according to physical and chemical properties of optical glass ; analyze and calculate the deformation quantity of the mirror with finite element method ; design and optimize mirror body structure of 400 lightweight plane mirror and 450 lightweight spherical mirror, analyze glass cutting principle, design specisl - use grinding wheel structure, select reasonable technological parameters to implement the processing of weight reduction holes on 400 plane mirror ; analyze etching mechanism of hydrofluoric acid, look for the technological parameters such as the optimal acid concentration and etching time etc. ; eliminate the stress of weight reduction holes and micro - cracks on 400 lightweight plane mirror ; discuss the processing principle and
本論文的研究主要是瞄準國家高技術對大口徑輕型鏡的戰略需求而開展的。主要研究內容是:根據光學玻璃的物理與化學性能,選擇輕型鏡坯材料;用有限元法對鏡子的變形進行分析、計算,找出變形規律,優化設計400mm輕型平面鏡、 450mm輕型球面鏡鏡體結構;分析玻璃切削原理,設計專用磨輪結構,選擇合理工藝技術參數,完成400mm平面鏡輕量化減重孔的加工;分析氫氟酸腐蝕光學玻璃機理,尋找最佳酸濃度、腐蝕作用時間等工藝參數,實現400mm平面鏡減重孔應力與微裂紋的消除;討論分離器加工原理和工藝技術特點,完成400mm平面輕型鏡面形加工。The geological conditions are very complicated in hejiazhai tunnel which is located in guizhou shuibo railway, this tunnel is named " mashed tunnel " with the most difficult geological conditions such as the high dense gas and developed karst and gushing water assembled together, the geological hazards like the gushing water and sand, the collapse of tunnel, surface subsidence and slide, cracking of tunnel lining were often happened during construction period
摘要貴州水柏鐵路何家寨隧道,工程地質條件極其復雜,集「高瓦斯、強巖溶、大涌水」為一體,施工期間曾發生多次涌水涌砂、洞內坍方、地表塌陷與滑坡、支護襯砌開裂變形等地質災害,堪稱水柏鐵路施工難度最大的「爛洞子」 。With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion
研究結果表明:通過對rpc各組分摻量變化的研究,可以找到rpc的最優配合比;試件成型后的熱養護制度對rpc的性能影響巨大; rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況,剛纖維的摻入可以大幅改善rpc的韌性; rpc在成型后存在較大的收縮,而其中的化學收縮要遠遠大於乾燥收縮; rpc具有很強的抗氯離子滲透性能,漿體的密實度很高;通過x射線衍射實驗,可以發現rpc的膠凝體中ch晶體已經幾乎不存在,膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成;在抗溶液侵蝕的實驗中,摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件,酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用,但是機理各有不同。Main content in simulation is the spatio - temporal evolution of the set of descriptive variables characterizing tectonic mineralization state under coupling of various processes as following : ( 1 ) variables related to forming and property of ore - forming fluid, such as dissolution rate of minerals ( include metal minerals ) in rock, concentration and saturation of aqueous species in fluid, temperature, pressure, and ionic strength etc. ; ( 2 ) variables related to structural deformation and fluid flow, such as stress, deformation rate, fracture network, porosity, fracture permeability ; ( 3 ) variables related to precipitation and mineralization, such as nucleation rate of gangue and metal minerals, accumulation precipitation of various minerals, etc. ; ( 4 ) spatio - temporal coupling relation of various variables above, such as the coupling relationship between spatio - temporal evolution of fracture permeability and flow and focus of fluid and ore - forming
模擬的主要內容是在各種過程耦合作用下,以下描述構造成礦體系的主要變量的時空演化:與成礦流體的形成和性質有關的變量,如地層中礦物(包括成礦物質)的溶解速率、流體中各組分的濃度與飽和度、流體溫度、壓力、離子強度等;與構造變形和流體運移有關的各變量,如應力與變形速率、巖石孔隙度、構造(斷裂)滲透率等;與沉澱成礦有關的變量,如礦物(金屬礦物和脈石礦物)的成核速率、各礦物的沉澱量等;上述各有關變量間的時空耦合關系,如斷裂滲透率時空演化與流體流動、匯聚和成礦的耦合關系等。Nuclear criticality safety for fissile materials outside reactors safety requirements for the use of fixed neutron absorbers
反應堆外易裂變材料的核臨界安全固定中子吸收體的應用安全要求Other nonlinear phenomena we studied include spiral wave dynamics in chemical reaction ( chi - keung chan ) ; pattern formation in fracture phenomena ; collective behavior of driven and self - propelled particles ( kwan - tai leung ) ; and jamming of granular flow in hoppers ( kiwing to )
另外,我們也研究物質斷裂中之裂紋路徑與網路圖型形成機制,及因自我或被驅動之粒子的集體運動行為所產生的相變現象(梁鈞泰) 。In addition, considering the essential characteristics of the fusion - fission hybrid reactor, the preliminary analysis and research of the mhd pressure drop of liquid metal that flow through the fuel packed pebble bed - based blanket are given
另外,基於聚變中子源驅動的次臨界清潔核能系統,針對聚變?裂變嬗變混合堆的本質特點,對液態金屬球床包層進行初步地探討和研究,進行了球床液態金屬溢流的磁流體動力學流動的建模分析和計算。When the stress at the tip of crack is inflicted on the m - type ferrite particle dispersed in matrix as a second particle, not only the toughness of composites will be pro ved because of the non - elastic area produced by the particle but also the strength change of magnetic field and the stress distribution in the structural ceramics will be detected by the strength of spontaneous magnetization varying while magnetic materials being pressed or drawn
這是因為當結構陶瓷中裂紋尖端的應力作用在彌散於基體內的鐵磁體二相粒子上時,鐵磁粒子不僅在裂紋尖端周圍產生的非彈性區域使復合材料的韌性提高;而且還能利用鐵磁材料在外應力作用下自發磁化強度發生變化的性質,通過測量復合材料在應力作用下磁場強度的變化,探測出結構陶瓷中的應力分佈情況。Over - expression of yggg retarded the cell cycle, on the point after dna partition, resulting in accumulation of diploid as bacteria stop division and sequentially went to death. this appearance is similar to that of the era mutants, including the partially defective in era gtpase activity or the reduced in the synthesis of wild - type era which bacteria become arrested in the cycle at the predivisional two - cell stage
在熒光顯微鏡下細菌形態的變化,以及dapi染色和透射電子顯微鏡觀察, yggg的表達與era突變(使era功能降低時)對細菌分裂的影響有類似之處,即細菌dna合成,子代dna分離后;分裂停滯,形成細菌繁殖受阻時, 2 - 4倍體的出現。In the laboratory experiment part, human peripheral blood, cultured cells and icr mice were study objects. the changes of mitotic chromosome numbers were measured by human metaphase chromosome counts and statistic analyzed used x2 - test. the changes of meiotic chromosome numbers were measured by mice one - cell zygote chromosome counts and statistic analyzed usedx2 - test. the effects of low dose ionizing radiation on the expression of topoisomerase ii were measured by immunocytochemistry, western blot and rt - pcr
流行病學結果顯示長期小劑量輻射接觸與染色體不分離呈正相關,為進一步在細胞遺傳學和分子生物學方面研究小劑量電離輻射與染色體不分離關系及其機制,本課題第二部分以外周血、培養細胞、 icr小鼠為研究對象,用外周血染色體計數和單細胞受精卵染色體計數的方法研究小劑量輻射和拓撲異構酶復旦大學2000級博士生學位論文11a抑制劑及其二者的協同效應對有絲分裂和減數分裂染色體不分離的影響,用免疫細胞化學染色、 westernblot 、 rt pcr等方法研究了電離輻射引起拓撲異構酶a表達變化。Each control rod assembly consists of a number of absorber rods attached to a spider assembly and coupled to the control rod drive mechanism. the absorber rods are made up of neutron absorbers such as silver, indium and cadmium. hence, by adjusting the position of the control rods, the number of neutrons and thus the fission rate in the reactor can be controlled
及控制反應堆的核裂變,部份燃料組件裝配有控制棒,控制棒組件由星型架及多根含銀( ag ) 、銦( in )和鎘( cd )的中子吸收體棒所組成,因此移動控制棒的上下位置就可以控制反應堆內中子的數目與及核裂變。And allow control of the fission rate inside the reactor, some fuel assemblies are fitted with control rods. each control rod assembly consists of a number of absorber rods attached to a spider assembly and coupled to the control rod drive mechanism. the absorber rods are made up of neutron absorbers such as silver, indium and cadmium
及控制反應堆的核裂變,部份燃料組件裝配有控制棒,控制棒組件由星型架及多根含銀ag銦in和鎘cd的中子吸收體棒所組成,因此移動控制棒的上下位置就可以控制反應堆內中子的數目與及核裂變。In addition, the fission rate in the pwr can also be controlled by adjusting the boron a neutron absorber concentration in the primary coolant circuit
此外,壓水式反應堆的核裂變也可透過調節一迴路內冷卻劑中的硼濃度來控制硼亦是一種中子吸收體。In addition, the fission rate in the pwr can also be controlled by adjusting the boron ( a neutron absorber ) concentration in the primary coolant circuit
此外,壓水式反應堆的核裂變也可透過調節一迴路內冷卻劑中的硼濃度來控制(硼亦是一種中子吸收體) 。During plasma disruption, the variation of magnetic field will induce eddy current in the internal thermal shield of ht - 7u tokamak
當等離子體破裂時,其產生的變化磁場會在托卡馬克裝置的內冷屏上產生感應電流。分享友人