熱中子的利用 的英文怎麼說
中文拼音 [rèzhōngzidelìyòng]
熱中子的利用
英文
thermal utilization-
Newcastle disease virus ( ndv ) strain 695, a thermostable nature avirulent strain, were replicated in embryonated chicken eggsand its rna was extracted from allantoic fluid. referred to the reported sequence of f gene, a pair of primers were designed and synthesized. f gene of ndv b95 strain was amplified by rt - pcr, the pcr products were checked by agrose gel electrophoresis and purified by agrose gel fracion method
利用從國外引進的新城疫熱穩定性天然弱毒b _ （ 95 ）株接種spf雞胚繁殖病毒，經處理后提取病毒的基因組rna ，參考國內外發表的ndv融合蛋白基因序列，設計一對特異性引物，經反轉錄聚合酶鏈式反應（ rt - pcr ）擴增出約1700bp大小的特異性片段，將此片段回收純化后，利用t - a克隆技術將其克隆到pgem - t - easy克隆載體中，再轉化大腸桿菌jm109感受態細胞，轉化后經分子量比較、 pcr鑒定和酶切分析篩選陽性克隆。By the methods of epn ( electronic probing needle ) 、 sem and xed, the formation mechanisms of the wear - resistant composite layer are studied, the results indicated that, molten iron has infiltrated into the alloying layer under capillary action. this caused ht powder, whose fusion point is low relatively, to be surperheated and formed a surface composite layer
利用電子顯微鏡及x射線衍射等試驗方法，研究了復合層形成機理，研究表明，復合層是在毛細力作用下，鐵液被吸入合金層中，致使低熔點ht粉過熱熔化而形成的，並與母材是冶金結合。In this thesis, the development of emulsion polymerization theory and related new technologies are comprehensively reviewed, and the synthetic technologies of acrylate latex modified by organosilicon both at home and abroad are also reviewed. based on the current development and research in this field, attentions of this study are focused on three ways for preparing novel acrylate latexes modified by organosilicons, that is, 1 ) the acrylate monomers are copolymerized with unsaturated silicons by emulsion copolymerization ; 2 ) a new latex with microphase separation morphology is synthesized, which shows a core - shell structure character ; 3 ) soap - free polymerization is explored for preparing a higher - performance latex using an unsaturated silicon monomer, different acrylates and a reactive emulsifier. by using techniques of delaying addition of organosilicon monomer and a hydrolysis inhibitor, the hydrolysis and condensation of 3 - ( trimethoxysilyl ) propyl methacrylate during polymerization can be effectively prevented, as a result, organosilicon content in the macromolecular chain is increased
同時採用有機硅單體延遲滴加及添加水解抑制劑等技術，有效防止了-甲基丙烯酰氧基丙基三甲氧基硅烷在乳液聚合過程中的過渡水解及縮合反應，提高了聚合物大分子鏈中有機硅鏈節的含量；利用紅外光譜與差示掃描量熱儀對產物分子結構進行了表徵，並通過對共聚產物力學和吸水率的測試，證實了本研究所制備的有機硅改性丙烯酸酯共聚物具有比純丙烯酸酯聚合物更優良的力學及耐水性能；從分子設計角度出發，利用醇解反應合成出水解、縮合反應速率較慢的兩種新型不飽和有機硅單體： ?甲基丙烯酰氧基丙基三乙氧基硅烷和?甲基丙烯酰氧基丙基三異丙氧基硅烷；利用核磁共振對新型硅烷單體結構進行了證實；研究表明利用新型硅烷單體可以制備出高硅烷含量的有機硅改性丙烯酸酯乳液，且其聚合產物具有較高的力學及耐水性能。The implements are ideal equipments that utilize the theory of centrifugal to get rid of ligh & heavy impuity in thick liquid material such as mixed sticky powder, sandstone, paraffin wax, heat melt glue, plastic pieces, dust, foam, gas, scrap iron and printing ink particle etc
組合式高效低濃輕重雜質除碴器是一種利用離心原理去除漿料中較大體積的混合膠粘物、沙石、石蠟、熱熔膠、塑料片、塵埃、泡沫、氣體、鐵屑、油墨粒子等重、輕雜質的理想設備。The implements are ideal equipments that utilize the theory of centrifugal to get rid of light & lheay impurity in thick liquid material such as mixed sticky powder, sandstone, paraffin wax, heat melt glue, plastics pieces, dust, foam, gas, scrap iron and printing ink particle etc
組合式高效低濃輕重雜質除渣器是一種利用離心原理去除漿料中較大體積的混合膠粘物、沙石、石蠟、熱熔膠、塑料片、塵埃、泡沫、氣體、鐵屑、油墨粒子等重、輕雜質的理想設備。Driven by the cauliflower mosaic virus ( camv ) 35s promoter, the er - shsp over - expressed constitutively. the growth and the phenotype of transgenic plants can be used for researching the function of er - shsp in improving tomato ' s cold resistance and the er - shsp chaperones function in vivo. after degested by kpnl and xbal enzymes from the pbs - er plasmid, the gene er - shsp - lehsp21. 3 was inserted into the prokii vector to construct an eukaryotic expressing vector
利用基因工程方法，將內質網小分子熱激蛋白基因（ endoplasmicreticulum - locatedsmallheatshockproteingene ， er - shspgene ） - lehsp21 . 3導入到番茄體內，使之在植物體中組成性表達（ constitutiveexpression ）內質網小分子熱激蛋白（ er - shsp ） ，觀察轉基因番茄在低溫條件下的生長和表型反映，研究er - shsp在提高植物耐寒性中的作用，同時為體內研究er - shsp的分子伴侶機制提供依據。Again, because the ion influx technique have a little damnification on the skin - deep structure for the cdte thin films, among the experiment, we have let the doped cdte thin films be annealed a hour with n2 atmosphere at 500, and then slowly cooled until the room temperature. via the test and analyse, heat treatment has very important effect on the comeback of crystallattice surface disfigurements. finally, the films were characterized by x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), ultraviolet visible ( uv ) and the hall effect measurement
再次，由於離子注入會對薄膜表面的結構造成損傷，本實驗把被注入離子的cdte薄膜在n2氣氛中500下退火1個小時，然後緩慢冷卻至室溫。經測試分析，熱處理對晶格表面缺陷的恢復有很重要的作用。最後，利用xrd 、 sem 、紫外可見分光光度計及hall測試系統研究其結構，表面形貌和光電性能。Only in recent years, some section has used plc, but the computer control level drops behind. according to the actual problem of production, this paper intent to build a real - time monitored control system for defibrator in mdf based on the advanced control system, which, finally, becomes a sub - system of the whole production
針對這些情況，本課題旨在利用先進的控制系統的基礎上，建立一個mdf熱磨工段的實時監控系統，使之最終成為中密度纖維板整條生產線全面綜合自動化系統的一個子系統，為構建中密度纖維板管控一體化的目標打下基礎。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 voltage of lithium - intercalation reaction, impedance and structural stability of intercalation - type cathode material were analysed and calculated. theoritical results show that the reaction voltage depends on the content of lithium and the bond energy, and that the key ways to lower the electrode impedance are to increase the electronic conductivity of the electrode and the diffusion coefficient of lithium ion in the host and to decrease the size of powder. in addition, the thermal stability of lithium - insertion structure can be improved by using crystallographic co - lattice theory and doping treatment
本文從嵌入式陰極材料的嵌鋰反應的電壓、阻抗及結構穩定性的分析和理論計算著手，得到了電壓取決于基體中各種離子間的鍵能及鋰含量、降低電極阻抗的關鍵是提高電子型導電性和li ~ +在基體中的擴散系數及減小粉末粒度的理論依據及其利用晶體的共格原理和摻雜改性的方式來提高材料嵌鋰結構的熱穩定性的設計思路。The main contents are as follows : ( 1 ) by employing the direct method, the soliton periodic amplification system in optical fiber link with loss is considered, and the adiabatic solution ( slowly varying portion ) and first - order correction ( rapidly varying portion ) for a single soliton case are presented
本文的主要內容如下： （ 1 ）利用直接擾動方法對周期放大系統進行了理論分析，給出孤子周期放大系統的絕熱近似解和一級修正解的積分表達式，結果分析表明孤子在放大過程中一部分能量以色散波的形式流失，而這一色散波主要由孤子周期放大系統的一級修正解來刻畫。To investigate the space / time distributions and occurrence and evolution of such events, the diffusion pattern over deserts, turbulent transfer features in sandstorm weather, the particle size distribution, mass concentration and its distribution, optic properties, chemical composition and physical factors responsible for the initiation of raising sands, we made integrative observation and sounding of sandstorms deep in the large - scale desert area, including tengri, badanjilin and maowusu, with the items consisting of micrometeorological measurement, 3d wind observation, data from kb - 120 and anderson samplers of mass concentrations of sands with their spectrum, the distribution of aerodynamic particle sizes from the aps3310a, retrieval of aerosols " optic depth from sunphotometer data, assay of the chemical composition by means of neutron activiation analysis ( naa ) and integrated study of all related factors for causing sandstorm to occur, based on the observations of all kinds
利用所取資料，系統分析了不同強度沙塵天氣條件下沙塵氣溶膠質量濃度和質量濃度譜、粒子譜分佈、光學厚度、化學組分等特徵；綜合分析了影響沙塵起動的諸物理因子在沙塵起動中的作用；用沙塵輸送模式對一次沙塵暴天氣造成的泥雨過程的形成機制進行了模擬。歷史氣象資料統計分析表明，沙塵暴有其高發期（ 4 、 5月）和高發時段（ 14 - 20時） ， 14時到20時之間發生的沙塵暴約占沙塵暴總次數的66 。揚沙和沙塵暴天氣條件下，湍流動量通量和湍流感熱通量都是重要的湍流交換，沙塵暴發生前近地層的超絕熱不穩定對沙塵暴天氣有加強作用。Up to now, research on strong interaction with theory model, such as the diagnosing the signal of quark - gluon plasma existence, mostly based on quark - gluon plasma system in high energy heavy ion collision is in chemical and thermal equilibrium
我們知道，到目前為止，利用理論模型進行的強相互作用方面的研究（比如：得到qgp存在的信號廠多以在高能重離子碰撞中的夸克膠子系統是處于化學平衡和熱平衡的為基礎的。This dissertation focuses on how to develop a high performance damping mechanism based on multi - energy transitions, which is independent or little dependant with the viscoelasticity of polymer matrix. three sections are mainly included in this dissertation as follows : chlorinated polyethylene ( cpe ) / piezoelectric ceramic ( pzt ) / vapor grown carbon fiber ( vgcf ) composites ; cpe / 2, 2 ' - methylene - bis - ( 4 - methyl - 6 - cyclohexylphenol ) ( zkf ) / vgcf composites ; organic hybrids made from cpe and small molecules cpe / pzt / vgcf composites : the damping composites of multi - energy transitions mechanism were produced by mixing pzt and vgcf into cpe. in this system, the mechanical vibration energy that was transmitted to cpe was found to convert into joule ' s heat through conduction paths between vgcf in the polymer matrix, so the vibration fades away
本論文主要包括三個方面的研究內容： ?氯化聚乙烯（ cpe ） /壓電陶瓷（ pzt ） /氣相生長碳纖維（ vgcf ）復合材料； ? cpe /雙[ （ 2 -羥基- 3 -環己基- 5 -甲基） -苯基]甲烷（ zkf ） / vgcf復合材料； ? cpe基有機小分子混雜型復合材料cpe / pzt / vgcf減振復合材料：利用壓電和導電填料填充高聚物基體，當復合材料受到機械振動時，通過高聚物基體將機械振動能傳遞到壓電陶瓷粒子上，利用壓電陶瓷的壓電效應，將機械能轉換成電能，則電流在導電粒子產生的迴路中流動，由於導電迴路具有一定的電阻，所以電能又轉變成熱能耗散掉，從而起到減振的目的。Microstructural change and thermal shock performance of metal / ceramic graded thermal barrier coatings in thermal shock experiments were studied by scanning electron microscope and energy - dispersive spectrometry. the results showed : 1 ) metal microstructure kept intact while ceramic microstructure had been destroyed ; 2 ) thermal shock performance of coatings was interrelated with its function to relax residual stresses, therefore thermal shock performance of gradient thermal barrier coatings was better than that of terraced thermal barrier coatings ; 3 ) thermal shock performance was concerned with metal content in metal / ceramic thermal barrier coatings, which would be improved when metal content was increased
利用掃描電子顯微鏡和能譜成分分析技術研究了金屬/陶瓷梯度熱障塗層在熱震過程中的顯微組織變化及其抗熱震性能.結果表明： 1 ）金屬顯微組織保持完好，陶瓷顯微組織有明顯的破壞； 2 ）塗層抗熱震性能與其熱應力緩和功能密切相關，梯度熱障塗層比階梯熱障塗層具有更高的抗熱震性能； 3 ）金屬/陶瓷熱障塗層抗熱震性能與其中金屬相含量有關，金屬相含量增加可改善塗層抗熱震性能Microstructure of the composite layer was analyzed with help of optical microscope, scanning electronic microscope ( sem ), electronic probe microanalysis ( epma ) and x - ray diffraction ( xrd ). the compacting of the billet and the forming mechanism of the carbide reinforcement were studied based on thermodynamics and kinetics of reaction, sintering theory and the result of dta. at the same time, the wear - resistance of the composite layer was studied under condition of dry sliding friction
利用光學顯微鏡、掃描電子顯微鏡、電子探針以及x -射線衍射儀，分析了表面復合層的基體組織結構；運用反應熱力學、動力學、粉末燒結理論和燃燒合成理論，結合差熱分析結果，探討了表面復合層壓坯的燒結緻密化原理和碳化物增強相的形成機理；利用坯塊在真空燒結爐不同溫度下的燒結出來的顯微組織分析，模擬出坯塊的燒結過程中的化學反應過程。By increasing the h2 dilution ratio, it is found that atomic hydrogen can selectively etch amorphous phase and stabilize crystalline phase. from the study on the distance from substrate to catalyzer, choosing a proper distance can ensure the gas fully decomposed, while a relatively low substrate temperature can cause the nanocrystalline particles to lose mobility and keep their sizes. the pre - carbonization process can enhance the nucleation density and make the growth of high quality nanocrystalline p - sic films much easier
實驗結果表明：隨著工作氣壓的減小，薄膜的晶粒尺寸有所減小；通過提高氫氣稀釋度，利用原子氫在成膜過程中起的刻蝕作用，可以穩定結晶相併去除雜相；選擇適當的熱絲距離能保證反應氣體充分分解，又使襯底具有較高的過冷度，是形成納米薄膜的重要條件；採用分步碳化法可以提高形核密度，有利於獲得高質量的納米- sic薄膜；襯底施加負偏壓可以明顯提高襯底表面的基團的活性，因負偏壓產生的離子轟擊還能造成高的表面缺陷密度，形成更多的形核位置。By means of plant genetic engineering, foreign insects resistance gene can be transferred into plant cell. we cloned the cpti gene and transferred it into mustard by agrobacterium - mtdi & ted transformation method. and obtained the transgenic mustard plants. the main results are as follows : 1. isolation of cpti gene total rna was isolated from cowpea seedss cotyledons and leaves. the cpti gene fragment was amplified by rt - pcr using sequences of its two sides as primers
本實驗是利用植物基因工程獲得抗蟲的轉基因芥菜植株，結果如下： 1豇豆胰蛋白酶抑制劑基因的分離分別提取豇豆種子、子葉及葉片的總rna ，逆轉錄成cdna 。以豇豆胰蛋白酶抑制劑基因兩端的序列為引物，用rt - pcr的熱啟動方法從上述cdna中擴增出目的基因片斷。The passive location and tracking system, which uses electromagnetic wave emitted by target, has proved its merits of self - hiding and far - distance detecting in modern electronic warfare ( ew ) and information warfare. and it is now the hotspot in the field of non - linear tracking and estimation
在現代電子戰、信息戰環境中，由於利用目標輻射電磁信息的無源探測定位系統具有自身隱蔽和探測距離遠等優點，因此它具有重要的應用價值，並已成為當今非線性跟蹤與估計研究領域的熱點問題。Activities include : use the air gun to shoot out invisible bullets that carry energy ; try to boil liquid by using your palm ; create loud sound simply by rubbing the metal bar with your fingers, etc. after participating these activities, you will discover the wonders of energy and have a deeper understanding about the conversion of energy
其中包括：利用空氣手槍射出蘊含能量的無形子彈嘗試以手掌的熱力令液體沸騰利用手指與金屬管的磨擦產生清脆的聲音等等。當你參與這些活動時，定可察覺能量是如此奧妙，並對能量之間的轉換有更深入的認識。分享友人