有機衰減 的英文怎麼說

中文拼音 [yǒushuāijiǎn]
有機衰減 英文
organic decay
  • : 有副詞[書面語] (表示整數之外再加零數): 30 有 5 thirty-five; 10 有 5年 fifteen years
  • : machineengine
  • : 衰動詞(衰弱) decline; wane
  • 有機 : organic organic
  • 衰減 : attenuation; decay; damping; reduction; rejection; weakening; deamplification; dampening; dying o...
  1. The last part of the thsis presents a novel fast response digital variable optical attenuator. this device is driven by two electromagnetic driving units rather not stepper motors. a wide attenuation ( 40db ) was fully digitized and can be set by a certain number of driving pulses

    論文最後針對現數字可調光器均由步進電驅動,體積龐大,造價高昂且速度緩慢的缺點,利用微反射單元設計了一種高速數字式可調光器。
  2. The investigation of a lot of parameters about treated sandstone, brick materials and earthen materials with fluorited polymers has been carried out, such as the formation of polymer, the penetration depth, porosity, capillary absorption and penetration coefficient, water uptake, compressive strength, drilling resistance, absorption isotherms of water vapor, water vapor diffusion, color changes as well as resistance to desegregation of water, frizzing - throwing cycles, worming - cooling cycles, and so on. in addition, the influence of salt crystallization, acid and base, and uv aging have also been assessed in order to better understand the protection effects and utilization possibility of two fluorinated polymers, mainly according to astm standard and the combination of international methods together with general technological

    分別以國家級文物保護單位的土質、砂巖和磚材文物樣品為對象,依據astm標準及國際通用文物保護研究方法與評估準則相結合,通過膠化物形成周期、滲透深度、孔隙度、毛細吸水和滲透系數、持水量、抗壓強度、抗鉆強度、吸附水蒸氣的能力、透氣性、外觀顏色等系列參數的測定,及凍融、冷熱循環、酸堿腐蝕后抗壓強度的、可溶鹽對保護效果的影響、酸堿及光照對表面保護效果的影響,對兩種含氟聚合物及其與硅的共混物在文物加固保護和表面防護中的可行性和保護效果給予了系統研究。
  3. Its main contributions include the following several aspects : firstly, the dissertation constructs the mathematic model of short baseline orientation determination using two geostationary satellites and analyses the applicable conditions of carrier phase interferometry. orientation determination precision is analysed in depth through both the conventional linearized method and monte - carlo computer simulation method, and the mathematical simulation results show that the linearized method has the shortcoming of fairly low elevation error analysis precision in high latitude area so as not to be very appropriate there. by analyzing the definite factors influencing orientation precision, the dissertation develops the concept of orientation dilution of precision, which uncovers the internal cause of exotic error behavior of bi - satellite orientation, and has important guiding significance for practical engineering applications

    本文系統地研究了基於「北斗一號」衛星載波相位干涉測量原理實現地球靜止雙星定向的相關技術,主要研究成果包括以下幾方面:首先,建立了利用兩顆地球靜止軌道衛星進行短基線定向的數學模型,分析了載波相位干涉測量的適用條件;採用傳統的線性化解析法及蒙特卡洛隨模擬法兩種途徑對雙星定向的精度進行了詳細分析,數學模擬結果表明在高緯度地區線性化解析法由於俯仰角誤差分析精度略下降而不太適合;在分析定向精度確定性影響因素的基礎上,提出了雙星定向精度因子odop的概念,揭示了雙星定向誤差特殊表現的內部理,對實際工程應用具重要的指導意義。
  4. After that, a fuzzy neural network control design with mixed performance was proposed aiming at different requirement to uncertainty, which separately compensate parameter uncertainties and external disturbances of robot system. this method can ensure the robust stability that under a prescribed attenuation level for the external disturbance, and also strengthens compensation to parameter uncertainties. the theory of hybrid force / position control is clear, however, it is difficult to implement

    針對實際應用中對不確定的不同要求,又提出了一種具混合/性能指標的神經網路控制方法,對器人不確定性(包括參數不確定性和外部擾動)分別進行補償,保證了系統對外界干擾在給定的干擾度下具魯棒穩定性的同時,還增強了系統對參數不確定性的補償。
  5. It is indicated that the hydration process of cement - based materials with slag, fly ash and silica fume is different in some degree from that of neat cement because of the difference in mineral structure and hydration mechanism. the periods of accelerating, decelerating and terminating are prolonged and hydration reaction decelerates. the second peak of rate curve of the heat evolution could be divided into two small peaks, which are contributed to the hydration of clinkers and mineral mixtures at the temperature of 30 but when temperature comes to 50, the two small peaks combine into one and the reaction accelerates

    結果表明,與硅酸鹽水泥相比,由於礦物摻合料與水泥熟料在活性和水化理上的差異,水化歷程較大的改變:多組分體系誘導期、加速期和期延長,水化反應速率明顯降低;低溫時,水化放熱速率曲線上的第二放熱峰細化成分別對應于熟料和礦物摻合料水化的兩個小峰;高溫時,反應速率加快,雙峰合併;進一步研究發現,摻合料的種類與摻量對水化歷程也較大的影響;建立了適用於多組分水泥基材料不同水化階段的水化動力學方程。
  6. The reaction mechanism for methanol oxidation at pt / moox / gc composite electrode involved the proton spillover effect from hydrogen molybdenum bronze, and a bifunctional reation mechanism for methanol oxidation by providing a hydrous molybdenum oxide to oxidize the intermediates, coads, for keeping cleaning platinum surface and make it easier for methanol to be oxidized on the clean platinum

    通過計時電流圖中的電流情況和cv實驗結果比較可得出, pt moo _ x gc電極催化劑具一定的抗- co -中毒性能。 pt moo _ x gc的甲醇氧化理是通過提供水合的氧化物來提高抗co中毒催化性能和質子溢出效應,從而加快甲醇氧化速度的。
  7. With the increase of the gptms, the luminescence intensity of l. omol % eu3 + and 3. 0mol % dbm co - doped gels increase gradually, which indicated that the increase of the gptms promoted in - situ synthesis of the dbm : eu3 + complexes in the gels

    在不同比例的gptms / teos凝膠中雙摻dbm和eu ~ ( 3 + ) ,隨著gptms在基質中浙江大學研士學過被文所佔比例的升高,稀土配合物在其中的熱溫度亦逐漸降低。
  8. It also has been validated by the test result. on the basis of reduced stress attenuation formula, the paper elicit theoretical calculation expressions of jam lengths in hole blasting and space between charges in linear charge blasting. linear charge blasting at the net of highway to zhuhai aerodrome and the hole blasting at underground stope in gaofen mining company have been design by the expressions

    根據建立的條形藥包爆破徑向應力方程,得出了淺孔爆破堵塞長度和條形硐室藥包爆破藥室間距理論計算公式;按推導的計算式設計了珠海西區場路埡口條形藥包爆破和高峰礦業限責任公司地下采場淺孔爆破。
  9. A quantitative analysis on the surface of the plate composite membranes with various polymerization tune was made on the basis of the feature absorption to ir by means of attenuated total reflection - fourier transform infrared spectroscopy. the results showed that polyamide functional layer grew thick with the polymerization time going on. this indicates that the polyamide functional layer formed on the interface cannot separate the w / o phases to stop the reaction

    利用全反射-傅立葉變換紅外( ftir - atr )對不同聚合時間的平板復合膜表面進行了特徵吸收定量分析,研究發現,聚酰胺功能層隨聚合時間不斷增厚,這說明已形成的聚酰胺功能層不能屏障兩相而終止反應,相反由於哌嗪單體的分子量遠低於納濾截留分子量的范圍,很易擴散穿過功能層達到兩相界面,繼續與相單體酰氯反應。
  10. If the drums will be hit medium to hard, you ' ll usually want to enable the mic ' s built - in attenuation ( “ pad ” ) switch. this helps minimize the chance of distortion

    如果鼓被越來越力度的擊打,我們經常會希望把麥克內置的開關打開,這樣會幫助少失真的會。
  11. Compared with the traditional curve - based method, this method can calculate the currents with high accuracy and little user effort. it can automatically calculate the periodic components of varying short circuit currents at anytime, and the aperiodic components of the symmetric short circuit currents

    該計算演算法大大輕了傳統運算曲線演算法的工作量,且具較高的準確度,能夠自動完成系統短路時任意時刻電流周期分量的求解,及對稱短路時短路電流非周期分量的求解。
  12. Like the linear motor the angular motor can be set explicitly, and has magnitude / direction, a timescale, and a decay timescale

    和線發動一樣,角發動可以直接設置,幅度/方向,時標,時標等參數
  13. Nearly all engines are equipped with air cleaners, which help reduce the air inlet noise to a secondary sound source

    一般發動均裝空氣濾清器,進氣噪聲即可較大,成為次要聲源。
  14. Study on the attenuating model of detonation shock wave in the pmma gap

    爆轟沖擊波在隔板中模型的研究
  15. ( c ) land natural productivity increase from 7843 kg / ( hm2 - a ) to 17335 kg / ( hm2 - a ) relate to altitude closely, and the mean rate of enhancing yield is 23. 53 percent in this region with annual enhancing - rate of 0. 64 percent in last 15 years. ( d ) there are many facters that have been influe ncing soil effective coefficient that ' s soil organic matter, total nitrogen, effective phosphine and soil texture in turn. in a word, attenuation cause of land productivity is the result of water and soil. ( e ) the forestland potential productivity change from 3986 kg / hm2 to 15034 kg / hm2, but it has a high distinction between southern aera and north area in yaan city. ( f ) the grassland potential productivity increase from 4085 kg / ( hm2 - a ) to 16973 kg / ( hm2 - a ), but it has a high classification of potential productivity, ( g ) ditribution map was formed of potential land productivity. ( h ) it could be act as decision support for agriculture development, national land planning and ecotop constructive, etc

    5 、土地自然生產潛力水平的主要土壤限制因素為質、全氮,其次為速效磷和土壤質地;區域潛在生產力差異的制約因素,主要為土壤,次為水分,水、土兩項合計為45 . 99 ,石棉、漢源兩縣水、土達到60左右。 6 、林地潛力在3986 15034kg / hm ~ 2之間,高等級林地比重小,以大相嶺為界,北部的各縣林地生產力水平高,南部的兩縣林地生產力水平較低。 7 、天然草地生產潛力水平高,潛力在16973 4085kg / ( hm ~ 2 ? a )之間,以高產的一、二、三級草地為主,且近10年來該比例變化不大。
  16. Signal can not be created but be enhanced by attenuating many kinds of noise from field by processing, so, is ridiculous to say, " do n ' t worry, we can get anything we want by processing "

    值得說明的是,迭代法噪音、迭代法振幅補償和串聯反褶積這三個處理過程不是彼此孤立的,而是相互聯系的,這三個處理過程也是的組合,起到互補效果。
  17. In this paper the injection dispersion in an oscillatory flow mixer has been studied by using the flow visualization technique with a solution of blue dye as the tracer. the process of injection dispersion was monitored with a digital camera connecting to a computer that treated the video data stream synchronously to obtain the attenuation curve of relative deviation of the flow image ' s gray scale values

    實驗採用以藍色染料為示蹤劑的流動顯形技術,由攝像頭實時攝取注入分散過程的動態圖像,計算同步分析視頻流數據,從而以在線監測的方式獲得流場圖像的灰度相對方差隨時間的曲線。
  18. Based on the above work, the optical absorption and photoluminescence ( pl ) properties of a - sinx : h films with different compositions are studied through ultraviolet - visible spectroscopy ( uv - vis ) and time - resolved photoluminescence ( tr - pl ), the dependence of pl intensity decay on emission photon energy is found, the luminescence mechanism of nanosilicon embedded in silicon nitride matrix is presented, finally, the effective approaches to improving the luminescence efficiency of a - sinx : h films are discussed

    在此基礎上,通過紫外-可見光譜( uv - vis )技術,時間分辨光致發光譜技術研究了不同組分的富硅a - sin _ x : h薄膜的光吸收和光輻射特性,得到了材料光致發光和輻射光子能量之間的關系,提出了鑲嵌在氮化硅中的納米硅的發光制,進而探討了提高納米硅薄膜發光效率的效途徑。
  19. According to the electromagnetic induction theory, abrupt variation of current in the transmitter loop will induce magnetic field around it, which is called the first field. in the transmission of the first field, when it meets good conductor target, induce current will be created, which is called erratic current of second current. because the second current changes with time, so it will create new magnetic field, which is called

    對于接收部分,由於瞬變信號具早期信號幅度大、快,而中晚期信號幅度小、慢的大動態范圍的特點,必須設計適應這種大動態范圍信號的採集電路;為了適應野外工作,系統主控部分採用具功耗低、高速處理的dsp ,通過高速通用串列介面usb與上位通訊,實現對整個探測系統的控制。
  20. 5. experiment about researches on sppc totally internal reflection mechanism were done when ce : batio3 is performed in cw titanium laser at 790nm wavelength. we compared the grating decay of tir mechanism with that of spb - fwm mechanism

    並且進行了位相共軛光柵存儲實驗,實驗中發現790urn時位相共軛光柵的要比532urn時慢得多,這可能與位相共軛建立制不同關。
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