中子形貌學 的英文怎麼說
中文拼音 [zhōngzixíngmàoxué]
中子形貌學
英文
neutron topography-
The changes in molecular weight, mass, mechanical strength, microstructure of fibers and ph value of the buffer solution with time in vitro had been studied. the study shows that degradation mechanism of pdlla / ha compound fiber was indicative of an autocatalysis process and simple noumenon hydrolysis
通過對試樣的性能測試和形貌觀察，研究了pdlla ha復合纖維在降解過程中其分子量、重量和力學性能以及緩沖溶液ph值等一系列參數的變化規律，並探討了復合纖維的降解機理。One of the branches is environmental archaeology. environmental archaeology development experienced three stages, linear model, early systematic model and later systematic model. four research areas, are formed gradually including geoarchaeology, archaeobotany, zooarchaeology and bioarchaeology
環境考古學的發展經歷了線形模式階段系統模式前階段和系統模式后階段3個時期，並逐漸形成4個主要的研究領域：地學考古植物考古動物考古和分子生物考古，其中地學考古涉及到地貌學沉積學土壤學和地質年代學。Applying the basic theories of spatial data mining and geomorphology, taking the loess plateau of north shaanxi province, china as the research area, this dissertation explored the theories and systematic structures of geomorphologic data mining and acknowledge discovery from dems, ascertained the systematic structures of topographic factors and synthetic topographic acknowledge, as well as systemically summarized mining algorithms from dems. the author pa id more attention also to analyze the principle and algorithm of flow length, curvature, relief, the earth ' s surface incision and gully density. in this research, the elementary constitutes and mining algorithms of regional character acknowledge in the loess plateau were probed
本研究在廣泛總結前人研究成果與研究經驗的基礎上，利用空間數據挖掘和地形地貌學的基本理論，以陜北黃土高原多地貌類型區為實驗樣區，以1 10000比例尺dem為樣本數據，探討了dem中地形地貌數據挖掘與知識發現的理論方法和體系結構；確定了宏觀和微觀地形因子、地形綜合特徵知識的體系結構；系統總結了dem基本地形因子的提取演算法，並重點對坡長、曲率、地形的起伏度、切割深度和溝壑密度因子提取的原理與演算法作了深入的分析；提出了黃土高原地區區域特徵知識的基本構成及其系統完整、科學可行的挖掘提取演算法；擴充了arcviewgis軟體平臺中dem空間分析的基本功能；實現了以delphi7 . 0為平臺的地形信息輔助挖掘系統的設計與開發；完成了對黃土高原多地貌類型區（樣區）地形信息空間分異特徵的分析。The effect of intensifier and other conditions on the mechanical properties of composite is studied for the sake of searching the optimal compounding and the optimal technological process. first, a series of composites are manufactured by means of different nonwoven fabric and different resin. the dissimilar methods are adopted including hand molding, vacuum - bag molding and vacuum assistant resin injection
本文在研究非織造布增強樹脂基復合材料的復合工藝、力學性能和破壞機理中，在運用材料學、工藝學、力學和宏觀測試手段的同時，注重採用微觀測試方法，主要採用掃描電子顯微鏡進行測試，觀察了復合材料拉伸斷口的微觀形貌，研究了不同類型的非織造布增強體，不同樹脂和不同工藝條件對宏觀力學性能的影響，從而選擇最佳的增強體和基體的組成、復合條件和工藝，以製成性能最佳的新型材料。And with the increased test time, the superiority of the low carbon high alloy steel was well illuminated. the worn surfaces of the three steels show that the mechanism of the low carbon high alloy steel is impact abrasion, the high manganese steel is impact - corrosion, and the medium carbon alloy steel is the heaviest impact - corrosion
最後通過hitachi - x - 650掃描電子顯微鏡考察了低碳高合金鋼、高錳鋼和中碳合金鋼試樣的沖擊腐蝕磨損表面形貌，並用olympus光學顯微鏡進行了光學金相分析，對這三種鋼的磨損機理進行一定的探討。In order to discuss the friction and wear mechanisms of mos2 nanoparticles, it was analyzed that the chemical status of elements existed on the rubbed surface by x - ray photoelectron spectroscope, and it was observed that the surface topography of wear zone by scanning electron microscope
通過x射線光電子能譜儀（ xps ）分析磨痕表面元素的化學狀態，掃描電子顯微鏡（ sem ）對磨痕的表面形貌進行分析，從而總結了納米二硫化鉬在n46機械油中的摩擦磨損機理。( 3 ) volume shrinkage of composite decreases greatly with wpu increasing, even can arrive a negative number, but thermal stability is still good. ( 4 ) toughening mechanism is that : the formation of high molecular linear amino formate construct is the toughening reason ; hydroxyl - terminated pu - prepolymer and pf react to produce chemical bond effect which participate cure ; carboxyl - terminated pu - prepolymer and pf form semi - ipn which make toughened pf occur maximum
（ 4 ）通過紅外光譜對pf / pu共混物分子結構進行的定性分析、以及掃描電鏡對沖擊斷面形貌進行的分析，可證明聚氨酯預聚物增韌酚醛樹脂的機理是：兩個體系都是由於高分子量的線形氨基甲酸酯結構而增韌；端羥基pu與pf在共固化中產生化學鍵效應，參與pf的固化；而端羧基pu則與pf形成半互穿網路而增韌。The properties of cn thin films such as their morphology, component, crystal structure and the bonding structure and the relation between those properties and the gas - phase reaction parameters were discussed, showing that the deposition of p - c3n4 thin film is the compete result of various reaction processes in the dynamics balance conditions ; the process of cn films depo sition is diagnosed in situ through the optical emission spectra technique, the effects of experimental parameters on the concentration of the precursors and the gas - phase reactions in the plasma have been obtained ; the main reaction precursors for film deposition identified ; the relation between the characteristics of cn thin films and the reaction process in the plasma is analyzed. the cn thin films deposition under different substrate temperatures in high pressure pe - pld shows that the si atom of the substrate has participated the cn films growth process, based on this the growth mode of cn thin films on the si substrate is proposed. the further experiment of cn thin films deposition on si substrate scratched by diamond as well as covered with fe catalyzer has been attempted, which indicates that changing the dynamics conditions of the surface reaction can alter the growth characteristic of the cn thin films and can enhance obviously the films growth rate
採用pld技術進行了碳氮化合物薄膜沉積，得到了含氮量為21at的cn薄膜；研究了襯底溫度和反應氣體壓強對薄膜結構特性的影響，給出了cn薄膜中n含量較小、 sp ~ 3鍵合結構成分較少和薄膜中僅含有局域cn晶體的原因；引入脈沖輝光放電等離子體增強pld的氣相反應，給出了提高薄膜晶態sp ~ 3鍵合結構成分和薄膜的含n量可行性途徑；應用pe - cvd技術以ch _ 4 + n _ 2為反應氣體並引入輔助氣體h _ 2 ，得到了含n量為56at的晶態cn薄膜；探討了cn薄膜形貌、成分、晶體結構、價鍵狀態等特性及其與氣體壓強和放電電流的關系，證明了- c _ 3n _ 4薄膜沉積為滿足動力學平衡條件的各種反應過程的競爭結果；採用光學發射譜技術對cn薄膜生長過程進行了實時診斷，得到了實驗參量對等離子體中活性粒子相對濃度和氣相反應過程的影響規律，給出了cn薄膜沉積的主要反應前驅物，揭示了cn薄膜特性和等離子體內反應過程之間的聯系；採用高氣壓pe - pld技術研究了不同襯底溫度條件下cn化合物薄膜的結構特性，揭示了si原子對薄膜生長過程的影響，給出了si基表面碳氮薄膜的生長模式；在金剛石研磨和催化劑fe處理的si襯底上進行cn薄膜沉積，證明了通過控制材料表面動力學條件可以改變碳氮薄膜結構特性，並可顯著提高晶態碳氮材料的生長速率。The studies on the influence of stretching process on the appearance and mechanical performances of camp fibers showed, that orientation of the molecular along the axis of the fiber was improved after stretching in the steam bath, and the mechanical performance were also improved
研究了拉伸工藝對camp纖維形貌及力學性能的影響。結果表明， camp纖維在蒸氣浴中進行高倍拉伸后，大分子沿纖維軸向取向程度提高，纖維的力學性能得到改善。Aim : to analyze the mechanism, thermadynamic theoretical basis, dynamic mechanism and influencing factors of thermally induced phase separation ( tips ) in order to completely grasp the factors affecting the size, distribution and form of pores, so that the adjusted range of pore can be widened and the preparation of porous membrane can be repeated and controlled. methods : considering from the structural characteristics of tissue engineered materials, the methods of preparing porous membrane using tips technique, the hermadynamic theoretical basis, dynamic mechanism and influencing factors were analyzed, the problems and investigative directions in the future were also analyzed. tips technique is a process of phase separation of polymer homogenous solution under quenching, and it is suitable for diameter and structural form of the micropore materials prepared using tips are closely correlated with the kind and dispensing proportion of polymer attrnuant, polymer concentration and polymer molecular mass, etc. conducted, including determination of polymer - solvent system phase diagram, study of form and appearance of porous membrane of different thickness, study of form and appearance of porous membrane prepared with systems of different x, which is the parameter of polymer - solvent interaction
目的:分析熱致相分離成膜過程的機理、熱力學理論基礎、動力學機制以及影響因素，以便充分掌握影響孔度大小、分佈、形態的因素，使孔度調控范圍得以拓寬，使多孔膜的制備能重復可控.方法:從組織工程材料結構特點出發，分析熱致相分離聚合物多孔膜的制備方法及該法成膜的熱力學理論基礎、動力學機制以及影響因素.並分析實驗中存在的問題及今後的研究方向.結果:以熱致相分離法可制備聚合物多孔膜.熱致相分離法制備多孔膜是高聚物均相溶液在淬冷條件下發生相分離的過程，它適用於上臨界共溶溫度型聚合物一稀釋劑二元體系.熱致相分離法成膜的過程，可以認為是旋節線機理佔主導地位.熱致相分離法制備的微孔材料，其孔隙率、孔徑大小、結構形態與聚合物稀釋劑的種類、組成配比、聚合物濃度、聚合物分子量等因素密切相關.結論:可採用熱致相分離技術制備多孔膜，通過改變不同的成膜條件可獲得一系列不同孔徑尺寸和孔徑分佈的多孔膜材料.對熱致相分離成膜過程中聚合物-溶劑體系的相圖測定，不同厚度的多孔膜形貌研究，不同x （聚合物-溶劑相互作用參數）體系所制備的多孔膜形貌等需深人研究The complex model of luminescence centers and quantum confinement has been proposed to interpret the origin of the green and red - emitting of the ps after modification. the deduction is supported by analyzing the morphology and the surface species of the modified samples through afm, sem, and ftir, xps
通過afm 、 sem及ftir 、 xps對這兩種多孔硅樣品進行表面形貌和化學成分分析，採用發光中心（ lc ）量子限制效應的復合模型對上述修飾多孔硅的pl峰移現象進行了理論說明。The morphology examination by sem and tem showed that the carbon nanotubes were arranged in the array uniformly and paralleled, with smooth walls, the outside diameter of 120 nm and the inside diameter of 110 nm. from the cyclic voltammetry, the array electrodes in an acidic electrolytic solution had greater capacitance than the case in a neutral electrolytic solution. the specific capacitance of 365 f / g was achieved with the discharge current density of 210 ma / g in the solution of 1 mol / l h2so4
掃描電子顯微鏡和透射電子顯微鏡對碳納米管陣列電極的形貌表徵表明碳納米管形狀規整，排列有序，尺寸均勻，管壁光滑，外徑約為120nm ，內徑約為110nm ；循環伏安實驗表明mwnts陣列電極在酸性溶液中比在中性溶液中具有更好的電容性能；根據恆電流充放電法得出mwnts陣列電極在1mol / lh _ 2so _ 4水溶液中，在210ma / g的放電電流密度下的比電容可達353f / g ，比目前報道的無序碳納米管和活性炭電極的比容量都高得多；其它電化學實驗顯示該電極具有很低的內阻和良好的充放電循環穩定性。By measuring the mechanical property of the polymers and observing the section morphology of flexural sample by sem, we found that : after treated, the silica particles can better interface with pvc compared with the untreated silica particles
通過對復合材料進行力學性能測試和掃描電鏡觀察復合材料的斷面形貌，結果發現，改性后納米二氧化硅粒子pvc的界面結合情況有所改善。二氧化硅能夠較均勻地分散在pvc當中。分享友人