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theory of solids中文是什么意思

  • 固體理論

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  • 例句與用法
  • Band theory of solid
    固體能帶論
  • The band theory of solids is used to calculate the absorption and gain of semiconductor media
    固態(tài)能帶理論用來計算半導(dǎo)體介質(zhì)的吸收與增益。
  • Physics of solids i provides an introduction to the basic concepts of the quantum theory of solids . this website features comprehensive problem sets
    固態(tài)物理提供一個固態(tài)量子理論的基本觀念的簡介。本網(wǎng)頁提供了相當深入的作業(yè)習(xí)題。
  • The photo - induced phase transition of the different light intensities , photo - energies and directions of the polarized light is investigated . it suggested that the photo excites the down spin eg electrons and destroys the spin order system of the thin films . the relation between the he - ne laser reflectivity of the thin film , applied current and resistance was analyzed by the optics theory of solid state physics
    光子通過激發(fā)e _ g向下電子的躍遷，從而改變材料自旋極化方向，影響體系的輸運行為；首次研究了cmr薄膜的激光反射率和偏置電流的關(guān)系，并用固體光學(xué)理論對其定性分析，表明反射率的變化是由于電場引起材料的晶格畸變，改變了極化率，從而導(dǎo)致材料的折射率和反射率發(fā)生改變。
  • The following results are achieved : ( 1 ) in accordance with the empirical electron theory of solids and molecules , considering the number of covalent bond pairs on the strongest bond in a segregation structure na , the elements for matrix - strengthening can be chosen . ( 2 ) on the basis of the available phase - equilibrium thermodynamics calculation of alloy system and phase diagrams , which have been worked out , the contents of alloy elements can be identified with reference to the types , quantity and phase - transformation of carbides . ( 3 ) both the values relating to toughness ( including bending strength , yield strength , impact value of unnotched samples ) and hardness of new dm9 die steel are higher than those of crl2mov die steel
    結(jié)果得出： ( 1 )根據(jù)固體與分子經(jīng)驗電子理論，利用偏聚結(jié)構(gòu)單元的最強共價鍵上的共用電子對數(shù)n _ a ，可以選擇工模具鋼基體相的強化元素； ( 2 )根據(jù)合金系相平衡熱力學(xué)計算及已有的相圖，可以碳化物類型、數(shù)量及其相變確定合金元素含量； ( 3 )新型dm9鋼在強韌性(抗彎強度、屈服強度、無缺口沖擊值)和硬度方面均高于cr12mov鋼； ( 4 )以dm9鋼與6crw2si 、 7cr2wmovsi ( dm7 ) 、 h13和cr12mov四種模具鋼的實驗比較，進一步驗證了上述冷作模具鋼合金設(shè)計方案是合適的。
  • Through recognizing and matching 2d view feature to construct 3d solid , consequently it gets ready for transforming from 2d to 3d . chapter 3 firstly introduces the basic theory of solid modeling system generally , and then elaborates on 3d solid ' s all kinds of descriptive modes in computer inside . on the basis of this it analysis the technology of autocad ' s solid modeling system
    在第三章中，首先系統(tǒng)地介紹了實體造型理論的基礎(chǔ)，然后詳細介紹了三維實體在計算機內(nèi)部的各種表示方法，在此基礎(chǔ)上，進行了autocad內(nèi)部實體造型技術(shù)的剖析，為本文的算法進行重構(gòu)的實體部分的生成奠定理論基礎(chǔ)，最后詳細介紹了以往的重構(gòu)技術(shù)。
  • Topics covered include : crystal lattices , electronic energy band structures , phonon dispersion relatons , effective mass theorem , semiclassical equations of motion , and impurity states in semiconductors , band structure and transport properties of selected semiconductors , and connection of quantum theory of solids with quasifermi levels and boltzmann transport used in device modeling
    被覆蓋的論題包括：晶格、電子能帶結(jié)構(gòu)、聲子色散關(guān)系、有效質(zhì)量理論、半經(jīng)典運動方程和半導(dǎo)體中的非純態(tài)、選擇性半導(dǎo)體的帶結(jié)構(gòu)和輸運性質(zhì)固體量子理論與準費米能級以及用于器件建模的玻爾茲曼輸運理論之間的聯(lián)系。
  • The entropy or number of states of system or subsystem are closely related to interaction of particles and energy level distribution , therefore , to study the temperature dependence of the specific heat may supply some important and useful microscopic information which may play an important role in understanding electronic structure , density of state , phonon spectrum etc . the specific heat measurements at low temperatures also play important roles in the finding of the third law of thermodynamics , the quantum theory of solid and bcs theory for superconducting etc . moreover , specific heat measurements help us to understand the different kinds of phase transitions ( such as : structural phase transition , magnetic phase transition , superconducting phase transition etc . ) and the scaling behavior near the critical point
    系統(tǒng)、子系統(tǒng)的熵或微觀狀態(tài)數(shù)與微觀粒子間的相互作用及能級分布密切相關(guān)，因此研究比熱與溫度的依賴關(guān)系能夠提供被測量系統(tǒng)許多極其有用的微觀信息，對理解固體的電子結(jié)構(gòu)、電子態(tài)密度、聲子譜等起著十分重要的作用。低溫比熱的測量和研究對熱力學(xué)第三定律、固體量子理論和超導(dǎo)bcs等理論的建立起到了積極的推動作用。比熱研究還有助于認識各類相變?nèi)缃Y(jié)構(gòu)相變,磁性相變,超導(dǎo)相變等及臨界點附近的標度規(guī)律。
  • The stress state in the stainless steel pipe - titanium alloy pipe - nitinb shape memory alloy connector system is analyzed by using the theory of solid mechanics and the recovery rules of nitinb shape memory alloy with constrains on the basis of analysis of the structure of the connector system and the all steps in the preparation and the service . a mathematical model for the strength was proposed . the temperature dependence of connecting force and the maximal stress intensity in the pipe connector in the process of preparation and service was studied by programming and computing . the computing results show that the difference of heat expansile coefficient between the coupling material and the pipe material leads to the strength of connector system at room temperature less than the strength at high temperature
    通過分析管接頭結(jié)構(gòu)以及制備、使用的各個步驟，運用固體力學(xué)的基本理論，結(jié)合nitinb形狀記憶合金在約束下的回復(fù)規(guī)律，對不銹鋼- -鈦合金管- -四川大學(xué)碩士論文nitinb形狀記憶合金管接頭系統(tǒng)內(nèi)的應(yīng)力狀態(tài)進行了理論分析，建立了強度的數(shù)學(xué)模型，通過編程計算，研究了不銹鋼一鈦合金管一nitinb形狀記憶合金管接頭系統(tǒng)裝配及使用過程中的抱緊力以及最大應(yīng)力強度隨溫度變化的規(guī)律。
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