熱光常數 的英文怎麼說

中文拼音 [règuāngchángshǔ]
熱光常數 英文
thermo-optical constant
  • 光 : Ⅰ名詞1 （照耀在物體上、使人能看見物體的一種物質） light; ray 2 （景物） scenery 3 （光彩; 榮譽） ...
  • 數 : 數副詞（屢次） frequently; repeatedly
  1. The results indicate that ( a ) before heat treatment, with the increasing of substrate temperatures, content of lower valency ( tij + ) decreases, the stoichiometric proportion of o / ti in all samples is about 2 ; the films have amorphous incompact columnar fiber structure, and with the increasing of substrate temperature, the size of columnar fiber increases ; the films have good hyalescence in visible range and great absorbability at the wavelength of 350nm ; optical constants of the films are calculated from the transmittance spectrums in visible range by mathematical analysis of the orders of interference, the results show that the refractive ind

    研究結果表明， （ a ）熱處理前，隨著基片溫度的增加，薄膜中的低價氧化鈦含量逐漸減少，化學計量比趨于o ti = 2 ；薄膜具有非晶態不緻密的柱狀纖維結構，柱狀纖維的尺寸隨基片溫度的升高而增加;薄膜在可見光范圍內透明，在波長為35onzn時嚴重吸收，利用干涉級次法分析了薄膜的光學常數，結果表明，薄膜的折射率隨基片溫度的升高而增加，根據計算結果得到了tioz薄膜在不同基片溫度下的折射率色散曲線。
  2. At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength

    由於準相位匹配技術有其獨特的優勢，可以利用非線性光學晶體的最大二階極化張量，如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ （ 33 ） ，其有效非線性系數高出普通非線性光學介質（如bbo 、 lbo 、 ktp ）一個數量級，而且可以人為靈活設計調制周期，通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段，選擇無走離效應，解決了常規pm難以解決的問題，拓寬了非線性晶體的應用范圍，極大地提高了頻率轉換效率，已成為非線性光學材料和固體激光器的研究熱點之一。
  3. Several materials with large coefficient of expansion were selected to make packaging components, and it was found that the packaging materials have good temperature sensitivity and compatibility with optical fibers. experimental accuracy and repetition of fbg temperature sensitivity and compensation were discussed. have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber ; have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of fbg wave - length, have obtained the first step conclusion ; have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes

    本文所做的主要工作包括以下幾個內容：一、選取了常見的熱膨脹系數大的材料製作封裝元件，經過多次一80到80反復測試，封裝元件沒有出現老化開裂、封裝裂紋、空洞、離層等缺陷，封裝材料具有良好的溫敏穩定性及復用性，與光纖相容性較好；二、對光纖光柵進行簡單、實用的封裝處理，就封裝效果的優劣性、波長測量的準確度、重復性和封裝時產生的波長損失等方面進行了一系列的實驗，得出了初步的結論；三、對溫敏和溫度補償式封裝的實驗數據進行了詳細的分析和對比，從數字上對溫變過程中光纖光柵中心波長的改變及溫變曲線進行了定量的分析，在大量實驗數據分析結果的基礎上，總結出哪種材料封裝效果更好，以及如何有效的減小實驗誤差。
  4. Featured by wide band gap, high breakage electric field, high electron mobility, low dielectric constant, strong irradiation proof and excellent chemical stability, silicon carbide ( sic ), viewed as one of the most promising wide band gap semiconductors, is widely utilized in optoelectronic devices, high frequency and large power, high temperature electronic devices

    被譽為最有潛力的寬禁帶半導體材料一sic ，因其具有禁帶寬度大、擊穿電場高、熱導率大、電子飽和漂移速度高、介電常數小、抗輻射能力強、良好的化學穩定性等優異的特性，被廣泛地應用於光電器件、高頻大功率、高溫電子器件。
  5. This work was supported by the state science and technology ministry of p. r. china under the contact no. g20000683 - 06, and by the national natural science foundation of p. r. china under grant no. 60046001. gallium nitride is one of the 3rd generation semiconductor materials. from 1990 ' s, gan has attracted more and more attention and advanced rapidly, mainly due to its direct transition, wide band gap ( ~ 3. 4ev ) and other excellent characters

    Gan是直接躍遷的寬帶隙材料，具有禁帶寬度大（ 3 . 4ev ，遠大於si的1 . 12ev ，也大於sic的3 . 0ev ） ，電子漂移飽和速度高，介電常數小，導熱性能好等特點，在光電子器件和電子器件領域有著廣泛的應用前景。
  6. Vil gmagyars g _ hajl ka n h ny k p az pusztaszeri ki ll t sb l : magyarorsz g kir lyai, uralkod i, csal df i, c merei, t ? rt nete, t rk pek, mer tett pap r, plak t

    常州星光電子有限公司生產整流二極體引線，整流橋堆引線、數碼管引線、電感引線、電容器引線、耐熱合金圓銅線、高電導銅包鋼復合線纜，高精度圓銅線、鍍錫圓銅線。
  7. The research for the absorptance of materials is significant to the development of laser material processing. the measurement method is the foundation of the absorptance research. in this paper the lumped method based on heat transfer is established for the absorptance of laser, and the measuring apparatus is also built up. as examples, the absorptance of laser is measured for several ordinary engineering materials

    材料對激光吸收的研究工作對激光加工的發展有著非常重要的意義.而吸收率測量方法的研究是材料對激光吸收研究工作的基礎.從量熱的角度出發，利用傳熱學中的集總參數法建立了測量吸收率的方法，設計了相應的試驗裝置，並測量了幾種常用工程材料對激光的吸收率
  8. Furthermore, the exposure schedule for recording holograms with equalized diffraction efficiency is designed based on the above - mentioned optical erasure time constants

    並且依據上述兩種光擦除時間常數，為分批存儲熱固定多重全息圖的等衍射效率記錄設計了曝光時序。
  9. Laser thermal constants measurement equipment

    激光熱常數量測設備
  10. Based on the theoretical models of vaporizing and heat - killing therapy of cancer with laser, the theoretical calculations of three common thermal - effect lasers have been made, and the results are shown and compared in this paper. we discuss on the applied methods to get the irradiating time as short as possible under more large vaporizing area. these theoretical calculated data will be valuable for reference

    本文根據激光汽化兼熱殺癌腫瘤的理論模型1 ， 2 ，對三種常見熱效應激光進行了理論計算和結果對比，討論了在較大汽化域情況下盡可能減少照射治療時間的應用方法和措施，為激光治療較大腫瘤提供具體理論參考數據。
  11. Nonlinear constant r | could be calculated according to the numbers of the diffraction rings. the sample ' s optical limiting properties were discussed. according to the experimental results, we estimated that the main mechanism of the optical limiting was from the thermo - optic effect

    對2 -甲氧基5 -丁氧基取代ppv氯仿溶液進行了激光誘導自衍射實驗，根據衍射環的個數估算出了樣品的非線性常數；同時還對該樣品進行了光限幅特性的研究，由實驗結果分析得出：由光熱效應引起的自衍射是產生光限幅特性的主要機制。
  12. The definition of stability and repeatability of the laser frequency and factors affecting the stability of laser frequency were analysed. the normal methods used to stabilise frequency and produce double - frequency were explained. after analysing the working conditions and related parameters of the laser device, it was concluded that the laser tube should be put inside an insulating cover and an electric discharge tube with a bigger diameter and length, smaller wall thickness and a higher thermal conductivity coefficient should be chosen

    分析了激光頻率的穩定性、復現性的定義及影響激光頻率穩定的因素；介紹了常見的穩頻及產生雙頻的方法；分析論證了激光器雙縱模熱穩頻的使用條件和有關參數的關系，得到結論是：應將激光管裝在保溫罩內；選用放電管直徑及長度大、壁厚小、材料導熱系數大的放電管。
  13. According to the significant improvement in properties of ions and particles doped perovskite, tb and cnt doped pt materials were prepared, and the properties studied. tb and cnt doped pt powders and films were successfully prepared by sol - gel method. by differential thermal analysis ( dta ), scanning electron microscopy ( sem ), transmission electron microscopy ( tem ), x - ray diffraction ( xrd ), fluorescent analysis and dielectric constant analysis, the morphology and phase transformation, crystalline properties, fluorescent properties and dielectric properties of the materials were studied

    本研究中採用溶膠凝膠法制備了具有優良結晶性能的稀土離子tb及納米碳管摻雜的鈦酸鉛（ pt ）超細粉末和（ 100 ）取向生長的薄膜，並利用差熱分析、掃描電子顯微鏡、透射電子顯微鏡、 x射線衍射、熒光分析和介電常數等多種分析測試手段對摻雜后的pt薄膜及超細粉末的相結構、光學性能、結晶性能以及介電常數等進行了研究。
  14. Fortunately, with the improvement in the material growth, gap1 - xnx alloys with nitrogen concentration as high as several percentage have been successfully grown by molecular beam epitaxy ( mbe ) or metalorganic vapor - phase epitaxy ( movpe ). more and more attentions have been paid to this alloy for its distinct property such as the giant band gap and effect, for this reason, gap1 - xnx alloys are usually called abnormal alloys

    人們研究發現， gapn混晶具有一些獨特的光電性質，例如其帶隙不是gap和gan的線性內插值，而是存在著較大的帶隙降低和巨大的帶隙彎曲系數，因此gapn混晶又被稱為「反常」混晶，從而引起了人們越來越多的關注，並成為當前的一個研究熱點。
  15. Using remote sensing technology, this study explored the distribution of cultural treasures around the qin shihuang ' s mausoleum, interpreted the aerial hyperspectral remote sensing images and aerial panchromatic remote sensing images, extracted the cultural relic information, and discovered the high thermal anomalies of the pyramid - shaped mound and the westward mausoleum passage under the pyramid - shaped mound, and validated the function of the underground drainage ditch

    應用現代遙感技術在秦始皇陵區對文物遺存進行探測，對航空全色遙感圖像和航空高光譜遙感圖像進行數據處理、解釋，提取文物遺存信息，發現了封土堆熱異常，證實了阻排水渠的存在及其阻水效果，確認了西墓道的存在。
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