離子引發 的英文怎麼說
中文拼音 [líziyǐnfā]
離子引發
英文
ionic initiation-
In general ionic polymerization can be initiated through acidic or basic compounds.
一般來講，離子型聚合可以被酸類或堿類化合物所引發。Atp released from an axon was indeed triggering calcium influx into schwann cells
從軸突釋出的atp的確引發了鈣離子流入許旺氏細胞。To successfully isolate the coronavirus causing sars from civet cats, in collaboration with the center for disease control and prevention of shenzhen. our research findings showed that the genetic sequence of the human and the civet cat coronavirus were closely related
與深圳疾病控制及預防中心合作，成功從果子貍體內分離出引致sars的冠狀病毒，並發現其基因序列與人類體內所發現的非常吻合。Plasma technique was introduced in the research of high power microwave ( hpm ) sources in recent decade. the performance of hpm sources is improved much by filling plasma which is promising in this field. filled - plasma travelling - wave tubes ( fptwt ) is a part of them. it is the main task of this paper to research and design fptwt ' s electron optics system and simulate it
近十年來，在高功率微波的研究熱潮中，引入了等離子體技術。引入等離子體能顯著改善高功率微波源各方面的工作性能，已經成為高功率微波源發展一個頗有前景的新方向，等離子體行波管即是其一個典型代表。Launched into earth ' s orbit by an ariane - 5 booster rocket from kourou, french guiana, in september 2003, smart - 1 used its ion engine to slowly raise its orbit over 14 months until the moon ' s gravity grabbed it
2003年9月， 「智能1號」探測器從法國蓋亞那地區的庫魯基地由ariane五號火箭發射升空，在其離子引擎的推進下， 「智能1號」緩慢脫離運行軌道，在14個月後進入月球重力場。Radiation effect of cationic initiators
陽離子引發劑的輻射效應The discovery of the colossal magnetoresistance ( cmr ) in hole - doped perovskite manganites ra1 - xmxmno3 ( ra is a trivalent rare - earth ion and m is a metal ion ) has attracted much attention since 1989 due to not only its technological applications in magnetic recording and sensor, but also the effect of the strong correlation concerning metal - insulator transition in the field of basic research. since then, several physics models have been suggested to explain the mechanism of cmr. however, the exact mechanism of cmr remains to be done
自1989年在摻雜鈣鈦礦型錳氧化物ra _ （ 1 - x ） m _ xmno _ 3 （其中m為金屬離子， ra為三價稀土離子）中發現龐磁電阻（ cmr ）以來由於其在磁記錄、磁傳感器等方面潛在的應用前景，以及金屬?絕緣體相變等所涉及的強關聯效應，使該類化合物吸引了物理學界的廣泛注意。The former was related to mn doping, both of p - carries supplied by la3 + or oxygen hole and n - carries induced by changing mn4 + into mn3 + can be locally displaced and simultaneously response with external electric field., furthermore due to the overlaps between positive and negative carries. the latter was due to the phase transformation between orthorhombic and cubic, which was in fact the curie point
前者為la ~ （ 3 + ）和氧空位等產生的p型載流子和mn離子變價引入的n型載流子在外電場下發生局域重排產生的載流子極化，且由於正負載流子的迭加效應所致，該介電峰與mn離子的摻入相關；後者為體系出現相應的正交與立方結構的轉變所致，也即居里點。First, we studied the role of exogenous ca2 + ion in the hypocotyl phototropism. the curvature of hypocotyls was strongly depended on extracelluar ca2 + concentration. in the medium with low ca2 + ( < 200 nm ), hypocotyl curvature was significantly inhibited
胞外鈣離子對下胚軸向光彎曲影響的實驗結果表明，不同的胞外鈣離子濃度引起下胚軸向光彎曲角度發生變化。Abstract : this paper, by analyzing the effect of differences of mineral structure of 2 1 layer minerals, the properties of their interlayer charge and changes of some properties caused by weathering on the attractive force for interlayer cation, reached the conclusion that : the fixation capacity is determined by the ratio of the total amount of interlayer charge and that of tetrahedral charges. the relationship of interlayer cation fixation and octahedral structure of secondary minerals is probably different from that of primary minerals. the oxidation and reduction of variable valence cations can greatly influence the cation fixation capacity
文摘:分析2 1型礦物的結構差異、層間電荷性質以及在風化過程中某些性質的變化對層間陽離子吸引力的影響，對已有報道中一些矛盾的結果或不具普遍意義的結論進行了討論.得出幾個較為明確的結論：層間總電荷與四面體電荷所佔比例大小共同決定礦物對層間陽離子的固定能力；原生礦物中八面體結構與層間陽離子固定間的關系對次生礦物而言，也許並不一致；八面體中可變價陽離子的氧化還原，可導致礦物固定陽離子能力發生較大變化Water quality - determination of 33 elements by inductively coupled plasma atomic emission spectroscopy iso 11885 : 1996 ; german version en iso 11885 : 1997
水質.採用引導耦合等離子體原子發射光譜法對33種元素The dark decay of the spectral change was also studied. two recovery time constants were obtained by fitting. one is 2. 5 hours and the other is longer
研究表明這種紫外光誘導的電荷遷移帶變化是由於eu ~ （ 3 + ）離子周圍局域環境發生的變化引起的。( 4 ) chapter vi. the theory of ion curren extraction of rf ion source is investigated, the reason of emission surface formation and its effect on ion curren extraction are reasearched emphatically
（ 4 ）對高頻離子源的束流引出原理作了理論推導和分析，著重研究了發射面的形成及其對引出束流特性的影響。Finally, the characteristics of ion curren extraction in different conditions are simulationed with magic software, and the parameter of best emission surface is obtained
最後，採用magic程序對高頻離子源不同引出參數下的束流引出特性進行了數值模擬，得到了獲得最佳的引出離子束所要求的等離子體發射面參數。The results of the uni - factor experiments and perpendicular experiments show their best mechanic synthesizing craft as followed : nvp ( 10 % wt ), kh570 ( 20 % wt ), hema ( 70 % wt ), initiator ( 0. 2 % wt ), crosslinker ( 20 % wt ), reacting 20 hours under 80 c. the factors which influenced organic silicon modified pvp hydrogel soft contact lens material ' s swelling capabilities were researched, which included temperature, monomer content, ion concentration etc. the experiments showed the equation swelling content ewc improved with the increase of nw, droped with the increase of kh570 and ion concentration, improved then droped with the raise of temperature, and hydrogels got the least ewc at 45 c. experiment carried on todiscuss water dehydration mechanism of organic silicon modified pvp hydrogel soft contact lens materials, which showed dehydration process could be divided into evaporating stage and diffusing stage
正交實驗結果表明， nvp ? hema ? kh570共聚物的機械性能最佳時，其合成工藝條件為： nvp用量10 （質量百分含量，下同） ， kh570用量20 ， hema用量70 ，引發劑aibn用量0 . 2 ，交聯劑nmba用量0 . 2 ，反應溫度為80 ，反應時間16h 。討論了單體配比、溶脹溫度、離子濃度等因素對有機硅改性pvp水凝膠軟接觸透鏡材料溶脹性能的影響。實驗得出：水凝膠材料的平衡溶脹度ewc隨單體nvp含量的增加而增大， ewc隨kh570用量的增加而減小，隨離子濃度的增大而略微降低，隨溶脹溫度的升高先稍微下降後有所提高， 45時平衡含水量最低。The ion beam implantation induced aberration of ml in many aspects. firstly, it was displayed dominantly in the germination rates
研究發現，離子束輻照擬南芥干種子引起了多方位的誘變效應。In this research, we obtained the results as follows : firstly, the germination vigor of m0, m, and m2 seeds irradiated by the different doses of low - energy n * were compared and analyzed in our experiments. the results showed that the germination and seedling formation rates of the treated seeds and their offspring seeds were lower than that of the control and the rates decreased with the implantation dose intensification. furthermore, the germination and seedling formation rates of the seeds treated with the dose of sox 1015n7cm2 were only 7
通過本文的研究，主要取得了如下的結果：首先，對不同劑量的低能n ~ +處理的擬南芥的m _ 0代、 m _ 1代和m _ 2代種子的萌發力進行了比較和分析，發現經不同劑量的低能離子處理的擬南芥的當代和後代的種子的發芽率和成苗率都比對照有不同程度的降低，降低關系與劑量成正相關，其中80次劑量處理的當代種子的發芽率和成苗率僅為對照的7 . 81和58 . 82 ，這表明低能離子注入可以引起種子的萌發力的下降。Polymerization of high molecular cationic polyacrylamide by using complex initiation system
採用復合引發體系制備高分子質量陽離子聚丙烯酰胺The chemiosmotic hypothesis describes the stomatal opening as a process in which the osmotic materials, mainly potassium, accumulate in guard cells, and as a result of the increase of osmotic pressure and the absorption of water into guard cells the stomata are driven to open. the energy for trans - membrane transport of k + is the hyperpolarized potential across plasmalemma, which is established by the proton extrusion
化學滲透假說認為氣孔開放是由外來滲透物質（主要是k ~ + ）等在保衛細胞中的累積造成的滲透壓上升所致，而離子跨膜運輸的動力是誘導氣孔開放的因子引發的保衛細胞向胞外泵出質子所造成的超極化膜電位。The methods and mechanisms of thermal, anionic, transition metal catalyzed ring - opening polymerization ( rop ), as well as the structure, property and potential applications of resultant polyferrocenophanes have been described
對熱引發、陰離子引發、過渡金屬催化等開環聚合方法及機理以及聚合物結構、性能及潛在應用作了介紹。分享友人