結晶學結構 的英文怎麼說
中文拼音 [jiējīngxuéjiēgòu]
結晶學結構
英文
crystallographic texture- 結 : 結動詞(長出果實或種子) bear (fruit); form (seed)
- 晶 : Ⅰ形容詞(光亮) brilliant; glittering Ⅱ名詞1. (水晶) quartz; (rock) crystal 2. (晶體) any crystalline substance
- 學 : Ⅰ動詞1 (學習) study; learn 2 (模仿) imitate; mimic Ⅱ名詞1 (學問) learning; knowledge 2 (學...
- 構 : Ⅰ動詞1 (構造; 組合) construct; form; compose 2 (結成) fabricate; make up 3 (建造; 架屋) bui...
- 結晶 : 1 (析出晶體) crystallize2 (晶體) crystal 3 (成果) crystallization; fruit; product; quintess...
- 結構 : 1 (各組成部分的搭配形式) structure; composition; construction; formation; constitution; fabric;...
-
Now, in a study that took more than five years to complete, rockefeller university researchers, in collaboration with a team of bacteriologists at the university of wisconsin, madison, have become the first to solve the structure of a protein complex that protects these cells from singlet oxygen
現在,洛克菲勒大學的研究人員與威斯康星大學的細菌學家一同協作,歷經5年多時間的研究,首次獲得了一種能夠保護細胞免受單態氧損傷的蛋白復合體的晶體結構。Electron crystallography study on structure determination for minute crystals
微小晶體結構測定的電子晶體學研究Abstract : starting from the crystal structural characteristics and through the theoretical calculation of the chemical bonds of diasporite and kaolinite structures and the study of the flotability of the flotation systems of anionic collector ( sodium oleate ) and cationic collector ( dodecylamine ), the relationship between the crystal structural characteristics and the flotability of diasporite and kaolinite and the main causes for the difference in their flotability are analysed by the crystal chemical theory of minerals
文摘:從一水硬鋁石和高嶺石的晶體結構特徵出發,通過對一水硬鋁石和高嶺石結構中化學鍵的理論計算及陰離子捕收劑(油酸鈉) 、陽離子捕收劑(十二胺)浮選體系中可浮性的研究,採用礦物晶體化學理論分析了礦物晶體結構特徵與可浮性之間的關系,以及產生一水硬鋁石和高嶺石可浮性差異的主要原因。Synthesis, spectroscopic properties and crystal structure of ni ssp oc10h
譜學性質與晶體結構In this thesis, previous research works on mg - based hydrogen storage materials have been reviewed. on this basis, the following works have been carried out : firstly, the part of ni in mg2ni alloys was partial substituted by the transition element cr. the effect of element cr and mechanical alloying on the phase structure and hydrogen storage properties of mg2nii. xcrx ( x = 0, 0
本文在對國內外鎂基儲氫材料的研究進展進行了文獻綜述的基礎上,著重對以下兩方面內容進行了研究: ( 1 )用過渡族元素cr對mg _ 2ni合金進行了元素替換,研究了mg - ni - cr三元合金的晶體結構、微觀特徵以及吸氫動力學性能。The inperfect crystal structure and its analysis for materials, is an elective course for the master graduate student, which include the crystallology principle, development of crystal diffraction, crystal determination and computer simulation of new phase, analysis of solid solution and superstructure, correction of crystal structure and bondvalent theory, analysis of inperfect crystal structure, analysis of amorphous structure and so on
材料不完整晶體結構及其分析方法,為材料科學及工程等專業碩士研究生的選修課,內容包括晶體學基礎、晶體衍射技術最新進展、新相晶體結構測定與數值模擬、固溶體與超結構分析、晶體結構修正與價鍵理論、不完整晶體結構分析、非晶結構分析等。The effects of the fabrication conditions on the crystal structure, grain size, micromorphology and electrochemical performance of these materials have been studied in depth. the reaction mechanism of the low - heating solid - state reaction method has also been investigated. in addition, a novel electrochemical method ( rpg method ) based on the concept of " ratio of potentio - galvano - charge capacity " has been for the first time developed to determine the diffusion coefficient of lithium - ion within insertion - host materials on the basis of the spherical diffusion model
本論文較系統地考察了低熱固相反應法合成鋰離子電池正極材料的可行性問題,研究了工藝條件對材料的晶體結構、晶粒尺寸、微觀形貌及電化學性能等的影響,探討了低熱固相反應的機理,並通過引進「恆壓-恆流充電容量比」的概念,給出了一種測定鋰離子嵌入脫出固相擴散系數的新方法。All my samples with good orientation are prepared by rf sputtering. then we invest surface morphology and crystal structure, optical and electrical properties of zno films by afm, xrd, hall testing, ultraviolet - visible spectrum photometer and xps et al. zno films are fabricated on gaas substrate
本文用射頻反應磁控濺射制備了高度c軸擇優取向的zno薄膜,採用原子力顯微鏡( afm ) 、 x射線( xrd ) 、 hall測試儀、紫外?可見分光光度計和x光電子能譜等分析測試手段,研究了樣品的表面形貌、晶體結構、光學和電學性能等。A super acylation catalyst, 4 - dimethylamino pyridine ( dmap ), was prepared and used to synthesize cholesteryl ester compounds. four kinds of cholesteryl ester compounds such as cholesteryl p - alkoxyl benzoate, cholesteryl dicarboxylate, cholesteryl lumequeic ester and coattail - like cholesteryl ester were synthesized by acylation method and super acylation catalyst method. chemical structures and liquid crystal behaviors of the synthesized samples have been characterized by using element analysis, ftir, dsc and polarized microscopy with a hot stage
本文合成了高效酰化催化劑4 -二甲基氨基吡啶( 4 - dimethylaminopyridine , dmap ) ,採用酰氯化法和高效酰化催化劑法分別合成了對烷氧基苯甲酸膽甾醇酯、對稱脂族二羧酸膽甾醇酯、烯酸膽甾醇酯及燕尾型膽甾醇酯四類膽甾醇酯衍生物,並進行了化學結構和液晶性能的表徵。The enhanced photoconductive effect from small amount of tnf facilitates the preparations of new organic photoconductive devices under the drive of low fields. in the fourth chapter, inclpc nanoparticles embedded in poly ( n - vinylcarbzaole ) ( pvk ) were prepared successfully by dissolving inclpc in aprotic organic solvent / lewis acid with great concentration for the formation of electron donor - acceptor complexes, i. e., the method of complexation - mediated solubilization. the fabricated inclpc nanoparticles were characterized by means of uv / vis absorption, x - ray diffraction pattern, and tem
論文的最後一章中,我們合成了具有較好的電子傳輸性能的化合物』一二苯基四竣酸花酚亞胺( ddp ) ;研究了其溶解性、熱穩定性、晶體結構、紅外光譜、紫外吸收光譜和蒸鍍薄膜的屬性,並用量子化學計算方法模擬其單分子的空間構型;載流子遷移率測試的結果約為ix10 「 、 m 』 v 」 』 ? s 「 』 。The phenomena were interpreted from the view of crystalline structure
並從晶體學結構上對它們長度和直徑變化進行解釋。During the calculation of crystallography, we always need to make some calculation such as vector length, angle between vectors or planes etc. this is a group of scilab functions which can make some common calculation
晶體學計算過程中經常需要計算矢量長度、矢量夾角等。此scilab工具箱提供了一組適用於任何晶體結構的函數,可以在輸入晶格常數的前提下,計算一些常用的晶體學數據。Most studies of these crystals have focused on the chemical makeup of the zircon itself
很多針對這些晶體的研究側重在鋯石自身的化學結構上。Main curricula : thermodynamic of material, crystal structure and the technology of x - ray, the principle of the solid state phase transition, the force behavior of material, metal material science, surface engineering, mate and engineering, the application of computer in material science
主要課程:材料熱力學,晶體結構和x射線學,固態相變原理,材料力學性質,金屬材料學,表面工程,材料成型原理與工藝,計算機在材料科學中的應用Srtio _ 3 ( sto ) thin films exhibit a large electric field dependence of dielectric permittivity. the microwave surface resistance of yba2cu3o7 - x ( ybco ) is much lower than that of the normal conductor. the typical value of rs for ybco epitaxial thin film is smaller than 1 m
在低溫下, srtio _ 3 (簡寫為sto )薄膜具有強烈的非線性介電性質,即:介電常數隨外加直流電場變化而變化; yba2cu3o7 - x (簡寫為ybco )具有極低的微波表面電阻, rs ( 10ghz , 77k ) < 1m ,而且它們的晶體結構相似,晶格常數匹配以及化學性質相容。Geologists refer to these trace elements as incompatible ? that is, they do not fit well into the crystal structures of common rock - forming minerals
地質學家指出,這些微量元素不相容,意即它們不相容於一般形成巖石的礦物晶體結構內。There are two main factors resulting in fading capacity and poor cyclability, one is the john - teller distortion of mn3 +, and the other is mn dissolution to electrolyte. the main objects of this paper are to resolved these key problems effecting on the performance of batteries. during the research of suppressing jahn - teller distortion, low valence cation ( al 、 mg ) and anion ( f ) doped method are usually adopted
針對limn2o4正極材料在電化學循環過程中發生jahn - teller畸變和mn在電解液中溶解這兩個導致容量衰減和循環性能劣化的關鍵問題,分別採用al 、 mg陽離子摻雜和al / f 、 mg / f陰陽離子復合摻雜兩種措施,對尖晶石結構limn2o4正極材料進行了改性研究。The significant capacity loss of the spinel limn2o4 during cycling hereby prevents its wider use as cathode materials for lithium secondary batteries. there are two main factors resulting in fading capacity and poor cyclability, one is the jahn - teller distortion of mn3 +, and the other is mn dissolution to electrolyte. the main objects of this paper are to resolved these key problems effecting on the performance of batteries
針對limn _ 2o _ 4正極材料在電化學循環過程中發生jahn - teller畸變和mn在電解液中溶解這兩個導致容量衰減和循環性能劣化的關鍵問題,分別採用陰陽離子復合摻雜和尖晶石晶粒表面包裹兩種措施,對尖晶石結構limn _ 2o _ 4正極材料進行了改性研究。No87 : two - stage image processing in high resolution electron microscopy, f. h. li, proc. intern. congress on electron microscopy, paris ( 1994 ) vol. 1, 481 - 4
高分辨電子顯微術與電子衍射相結合測定晶體結構,李方華,自然科學進展- - -國家重點實驗室通訊, 3 ( 1993 ) 385 - 394Abstract : the light atom imaging method in high resolution transmission electron microscopy ( hrtem ) and its application in crystal structure analysis for a series of metastable oxides of copper, nickel and silver is described. the idea stemming from this method has been extended to show the possibility of observing surface structure in a series of rather thick films with the hrtem plan - view imaging mode
文摘:介紹了利用高分辨電子顯微學進行晶體結構分析的一種方法輕原子成像法的建立過程及其在銅、鎳、銀等金屬的初期氧化(硫化)產物結構分析中的應用.介紹了利用輕原子成像法的思想解決厚膜上觀察表面結構的可能性問題的新進展分享友人