熱差電性 的英文怎麼說

中文拼音 [rèchādiànxìng]
熱差電性 英文
thermoelectricity
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  1. Linio2 - based compounds were promising candidates of cathode materials for lithium ion batteries. but they still possessed various problems such as the difficulty of preparation, the poor heat stability and the dissatisfactory cycleability performance and so on, which insolubility for its practical applications, so it must be optimized synthesis and changed perfomance

    鋰鎳氧系列電極材料是當前鋰離子電池新一代正極材料的研究熱點之一，但是由於該系列材料存在著諸如制備困難、熱穩定性差、循環性能差等問題而不能實際應用，必須對其進行合成優化和性能改性。
  2. The thickness of the silver plating layer is in the range of 0. 2 m ~ 0. 5 m. through dta, it is proved that the metal plating layer is compatible with the substrate very well. the research on the testing of the complex decoy ' s properties is detailed below

    該文還重點分析了影響鍍層導電性的因素；確定了鍍銀層厚度大致范圍在0 . 2 m 0 . 5 m ；通過差熱試驗，證實了鍍層金屬與基片是完全相容的性質。
  3. In this article, physical equations and relative three - dimensional finite - difference formulae in cylindrical and spherical geometries were derived and two - and three - dimensional code in cylindrical and spherical geometries for direct - drive by laser was made, based on the lared - s code in planar geometry. it consisted of the processes such as the inverse bremsstrahlung absorption, electic heat conduction and fluid dynamics

    本論文在lared - s程序平面版本基礎上，推導了三維柱和球幾何中激光驅動的物理方程和相應的差分方程，編制了二維和三維柱和球幾何中激光驅動流體不穩定性的lared - s程序版本，主要物理過程包括：激光逆軔致吸收、電子熱傳導和流體運動。
  4. Because of its good electrical conductivity, cfrc specimens will engender joule effect when a relatively low voltage was added to them. if there are flaws inside, the surface temperature distribution of the specimens should be uneven. therefore, infrared thermograph ndt can be conducted

    利用碳纖維混凝土良好的導電性，通過對碳纖維混凝土試件施加較低的電壓，使其產生焦耳效應，如果試件內部存在缺陷，將在表面產生溫度差，從而可以利用紅外熱像技術進行無損檢測。
  5. The disperse degree of the ceramic can greatly affect uniformity of the composite, which limit the poling voltage and affect the piezoelectricity. in this paper, the relationships among constitutes, microstructures, dielectric and piezoelectric properties were calculated by employing the banno unit cell mode ; pzt ceramic were synthesized by the hydrothermal method and the appropriate solution was selected according the adsorption of pvdf on the ceramic particle surface ; then, relationships between the disperse degree and the fabrication process were studied. base on these, the pzt / pvdf composites intermingled some pan were prepared and the microstructures were investigated

    論文首先利用bannounitcell模型，計算了pzt pvdf壓電復合材料的組成、結構、與其壓電和介電等性能之間的關系；針對壓電復合材料存在的均勻分散性差的缺點，選用水熱法制備的粒度均勻的pzt陶瓷粉末，並採用溶液混和法與聚合物pvdf進行分散復合，重點研究了不同工藝條件下陶瓷的均勻分散性及其與材料微觀結構之間的關系。
  6. Aiming at such problems in combustion system of homemade middle and miniature boiler, as a complex system with the character of dead zone, time variation, serious non - linearity, large time delay, coupling and a lot of disturbance, this paper presents a new set of optimal control resources. by using well - matched control method on system, stable automatic running is realized. having the serious divulgence coals difference a lot from each other in character, instability of chemistry, value of lowest emission of heat, home - made boiler controller is not at all ideal. instead of traditional model that controls the ratio based on proportional control or with the correct signal of the amount of oxygen, this paper, combined with intellect control theory - - fuzzy control and self - optimizing concept, propounded a kind of fuzzy self - optimizing controller to be used in air supplying system of the boiler, and expatiates on the idea of dividing the control process into two parts, dynamic and static to realize, thus meets the demand of homemade boiler economic running

    本設計針對國產中、小型電站鍋爐燃燒系統參數時變、嚴重非線性、干擾因素復雜、耦合嚴重、模型不易確定的特點，提出多變量協調控制方案，解決了系統可控性差，難以實現穩定自動運行的問題；在此基礎上，改變以往以煙氣含氧量控制送風的傳統模式，針對國產電站鍋爐設備主體及一、二次送風迴路泄露嚴重，煤種混雜、成分不穩定、燃燒發熱值低、燃燒效率不高等問題，應用智能控制理論中的模糊控制技術，結合自尋最優控制的思想，設計了一種模糊自尋優控制器，應用在電站鍋爐送風控制系統上，並闡述了動靜態兩種實現途徑，通過在線優化風煤配比，實現最佳經濟燃燒，切實保障了鍋爐的經濟運行。
  7. The major performances of concrete and mortars, which are mixed with different quantities of expansion admixtures under the same mix proportions, are studied systematically and deeply in this work. sulphoaluminate mixed with a type of new expanding component by use of the composite methods are studied in the laboratory, and some achievements have been obtained. the service conditions, the characteristics and the shortcomings of expansion admixture in the concrete engineering are analyzed and summarized based on literatures, and the expanding mechanism of concrete is discussed

    本文試圖從膨脹劑不同摻量研究其對混凝土和砂漿主要性能的影響，進行了一系列宏觀力學性能試驗研究；利用差熱分析（ dta ） 、掃描電子顯微鏡（ sem ）等分析手段對鈣礬石等水化產物的結晶和生成量、形貌特徵進行微觀分析；並採用復合方法摻加新型膨脹組分對硫鋁酸鹽類膨脹劑（ uea ）進行了改性試驗研究，根據多因素模糊綜合評價方法就各類膨脹劑的主要性能進行綜合評價，得出摻加新型膨脹組分pt的膨脹劑性能較優，取得了明顯的效果。
  8. However, both of them have disadvantages. mo tip feas is fabricated by evaporating tip cathodes on base, so it has bad coherence with the base. on the other hand, the characteristics of silicon result in the bad heat stability, bad emission reliability, and low current density

    然而，這兩種陰極存在各自的缺點，如鉬尖錐是蒸鍍在基底上的，所以與基底的附著力不強;而硅的特性又決定了其熱穩定性差，發射的可靠性低，發射電流有限。
  9. With the increasing of cu contents, flie resistivity of composite samples nd _ ( 0. 67 ) sr _ ( 0. 33 ) mn _ ( 1 - y ) cu _ ( y ) o _ ( 3 ) ) _ ( 0. 7 ) / ( nife _ ( 2 ) o _ ( 4 ) ) o. 3 changes rapidly and the mr gets better ; 6. as for the composite samples composed of nd _ ( 0. 67 ) sr _ ( 0. 33 ) mn _ ( 0. 8 ) cu _ ( 0. 2 ) o _ ( 3 ) of different sizes, with the increasing of heat treatment temperature, the grain size becomes larger, so the resistivity decreases and the capability of mr gets worse ; 7

    6 .經不同溫度熱處理后的n斷67sr033mn0 . scu0203粉體與nifezo ;復合制得的困衡67sr033mno . scu0203 ） 0袱困ifezo4 ） 03復合樣品，隨著粉體熱處理溫度的升高， nd067sr033mnoscu02o3顆粒粒徑逐漸增大，從而導致復合體系電阻率減小，同時磁電阻性能逐漸變差。
  10. Based on nanometer powders, cajc cvbased oxides were synthesized by constant sintering, cold isostate pressure and hot pressure methods. it can be found that sintering methods have a great influence on thermoelectric performances : the sample synthesized by hot pressure method is most dense and has the best thermoelectric performances. the microstructures and thermoelectric properties of cascog - based oxides doped by four dopants have been investigated

    採用不同的后續工藝制備最終的熱電材料，研究不同工藝對熱電性能的影響發現：熱壓燒結制備出的熱電材料最緻密，其熱電性能也最好；先冷等靜壓成型后常壓燒結方法次之；直接常壓燒結法燒出的樣品氣孔最多，性能也最差。
  11. Abstract : on the basis of the principle of equivalent enthalpy drop, the online calculating model on the influence of every heater end temperature difference on the unit economy is established which shows the online influence degree. therefore, it provides the theory basis for overhaul workers

    文摘:以等效焓降理論為基礎，建立了各級加熱器端差對機組經濟性影響的在線計算模型.通過該計算模型可以在線顯示每級加熱器端差對機組熱經濟性影響的程度，從而為運行檢修人員提供了理論依據，對電廠節能有一定的現實意義
  12. On the basis of the analysis of fundamental principle of thermoelectric refrigeration, the steady state mathematical model of the thermoelectric system was founded. according to the model, the theoretical analysis and calculation are made on various working conditions, and analyzed theoretically the effects on thermoelectric system which caused by hot and cold temperature difference, the device ’ s effective system figure of merit, the properties of the heat changers, which established theoretical basic for the opening up and design of the thermoelectric system and its performance test

    在分析熱電製冷基本原理的基礎上，建立了熱電裝置的穩態系統數學模型，並依據該模型對熱電裝置系統進行了不同的工作狀態下的熱力分析計算，並就熱電裝置的冷熱端溫差、電堆片的優值系數、散熱器的散熱性能與熱電熱泵裝置性能的影響進行了理論分析，為熱電裝置的開發設計和現有熱電裝置的性能測試建立計算理論基礎。
  13. According to negative temperature coefficient of vbe and positive temperature coefficient of vt, a framework of band - gap voltage reference is investigated. the reference offer a source of pir, distributed three voltage, one as upper - threshold voltage of dual - threshold comparator, the other as lower - threshold voltage of comparator, the other as direct current voltage for second band - pass filter amplifier

    同時利用pnp晶體管發射結電壓的負溫度特性和發射結差值電壓的正溫度特性設計了一個帶隙基準電壓源。此帶隙基準電壓源本身作為熱釋電紅外傳感器的電源電壓，同時分壓提供雙限電壓比較器的上限電平和下限電平以及第二級帶通濾波放大器的直流電平。
  14. Measurement error of thermistor compensated by nonlinear inverse filtering

    熱敏電阻測量誤差的非線性逆濾波器補償
  15. The maximal power outputs of 37. 0 mw / cm2 and 30. 0 mw / cm2 for the p - and n - type laminated materials respectively at the temperature difference 490 have been experimentally obtained, which are about 2. 5 and 3. 0 times those of - fesi2. chemical analyses show that the interface failure between the bridge alloy and the semiconductor bi2te3 results mainly from the eutectic mixtures with low melting point and brittle compounds formed during welding and long time annealing at 190. it is found that the electrical properties of a laminated structure are mainly controlled by the wettability of the bridge alloy on the semiconductor surface

    發現： 1 ）疊層材料具有明顯優于均質材料的熱電性能，在490溫差下， p -型和n -型疊層材料的最大輸出功率分別達到37 . 0和30 . 0 （ mw / cm ~ 2 ） ，是同類型均質- fesi _ 2的2 . 5和3倍； 2 ）在焊接過程和190長時間退火處理過程中，焊接過渡層合金和基體半導體（特別是bi _ 2te _ 3 ）之間存在明顯的元素相互擴散，從而在過渡層中形成一些低熔點共晶體和脆性化合物，這是導致疊層材料破壞的主要原因； 3 ）焊接過渡層合金與半導體基體之間的潤濕性是影響界面層電性能的主要因素。
  16. The simulation system includes the optics, chopper control, driving signal design, image data acquisition based on vi technology and image processing including image difference, non - uniformity correction ( nuc ), image intensification and dynamic display, etc. according to the corresponding theories, the author designed all these software modules. the research on the pyroelectric imaging technology through this experiment is of great importance to practical thermal imaging system in the future

    根據熱釋電焦平面成像原理，用sspa器件在可見光條件下設計了基於虛擬儀器技術的熱釋電凝視焦平面成像模擬系統，包括光學系統、斬波控制、驅動信號設計、基於虛擬儀器技術的圖像數據採集和相關的圖像處理技術，如圖像差< wp = 5 >分、非均勻性校正、圖像增強和動態顯示等。
  17. Because of the crystalline leading to the piezoelectricity of pvdf, pvdf fiber and pvdf / pa11 fiber ' s structures and crystalline were investigated and analyzed by means of wide angle x - ray diffraction, differential scanning calorimetry, fourier transmittance infra - red spectroscopy and scanning electron microscopy, etc. it was shown that there are two kinds of crystalline - a phase and b phase in pvdf fiber

    由於pvdf的壓電性與晶體結構有關，於是利用紅外光譜、差熱分析、廣角x光衍射和掃描電鏡等測試手段對純pvdf纖維以及pvdf pa11共混纖維的結構性能及晶型轉變進行了深入的研究。
  18. The suitable preparing condition of the composite has been set down by a series of experiments. the clay / poly - acrylamid superabsorbent composite is characterized by infrared ( ir ), thermogravimetry, analysis ( tga ), differential scanning, calorimetry ( dsc ) and x - ray diffraction analysis ( xrd )

    在理論研究方面，利用x射線粉晶衍射光譜、紅外吸收光譜、熱重分析法、示差掃描量熱法、電化學分析等方法對超吸水性復合材料的吸水性能與超吸水性復合材料的組成基團以及結構關系進行了深入探討。
  19. At present, the crystal growth equipment is equipped with vacuum tube hf ( lmhz - 2. 5mhz ) induction heating power supply. while this supply has many disadvantages, such as low reliability, short longevity of vacuum tube, operational safety, low transfer efficiency

    目前，用於晶體生長的區熔式單晶爐配套使用的是國外進口或國內生產的真空電子管式高頻感應加熱電源，存在諸如可靠性差、電子管使用壽命短、操作不安全、變換效率低等問題。
  20. While this kind of power supply has many disadvantages, such as low reliability, short longevity of vacuum tube, operational safety and low transfer efficiency, existing huge capacity solid induction heating power supply cannot replace them to meet industrial needs

    目前，國內用於晶體生長的區熔式單晶爐配套使用的是國外進口或國內生產的真空電子管式高頻感應加熱電源，存在諸如可靠性差、電子管使用壽命短、操作不安全、變換效率低等問題。
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