輻照前 的英文怎麼說

中文拼音 [fúzhàoqián]
輻照前 英文
pre irradiation
  • 輻 : 名詞（車輪中車轂和輪圈的連接物） spoke
  • 照 : Ⅰ動詞1 （照射） illuminate; light up; shine 2 （反映） reflect; mirror 3 （拍攝） take a picture ...
  • 前 : Ⅰ名詞1 （在正面的） front 2 （次序在先的） first; top 3 （過去的; 較早的） ago; before; preceding...
  1. Determination of ferulic acid content in angelica sinensis before and after irradiation by hplc

    高效液相色譜法測定當歸輻照前後阿魏酸的含量
  2. Abstract : the article introduces the application of cold sterilization, super high pressuer sterilization, sterilization system of hydrogen peroxide - peroxidase - glucose oxidase, uht, htst, radioactive sterilization and lysozyme sterilization to the production of tea beverage ， and predicts their future prospect

    文摘:介紹了冷滅菌、超高壓殺菌、過氧化氫-過氧化氫酶-葡萄糖氧化酶體系殺菌、超高溫殺菌、高溫瞬時殺菌、輻照殺菌和溶菌酶殺菌等技術在茶飲料生產上的應用，展望了其應用前景。
  3. The article introduces the application of cold sterilization, super high pressuer sterilization, sterilization system of hydrogen peroxide - peroxidase - glucose oxidase, uht, htst, radioactive sterilization and lysozyme sterilization to the production of tea beverage ， and predicts their future prospect

    介紹了冷滅菌、超高壓殺菌、過氧化氫-過氧化氫酶-葡萄糖氧化酶體系殺菌、超高溫殺菌、高溫瞬時殺菌、輻照殺菌和溶菌酶殺菌等技術在茶飲料生產上的應用，展望了其應用前景。
  4. In this study, dna strand breaks in jm109 cells caused by - rays and the protective effect of lexa protein of deinococcus radiodurans have been studied by fluorometric assay of dna unwinding., the results indicated that the rate of dna strand breaks increased with the increase of - rays dose. however, when the concentration of lexa protein from 0. 1 g / ml to 10 g / ml, it still showed no protective effect on dna strand breaks, then lexa protein of deinococcus radiodurans was n ' t radioprotector

    本研究採用了dna解旋熒光法檢測由射線所致的dna鏈斷裂的損傷程度以及抗輻射菌lexa蛋白的輻射防護作用，在輻照前加入不同濃度的lexa蛋白，檢測dna鏈的斷裂，結果表明dna鏈的斷裂程度隨著射線輻照劑量的增加而增強，抗輻射菌lexa蛋白對射線所致dna鏈斷裂的修復不起作用，進一步說明抗輻射菌lexa蛋白不起輻射防護作用。
  5. The studies on optical properties and irradiation effect of heavy ion implanted samples are very important from both theoretical and applied view points. in this work, the optical properties and defect structures in xe + - implanted ysz and ni + - implanted al2o3 were studied by using optical spectroscopy, tem, xps and trim 96 calculation. it was found that 1 ) a broad absorption band centered at 522 nm was observed in 1 1016 cm - 2 xe + - implanted ysz

    離子注入是一種重要的表面改性技術， ysz （ yttria - stabilizedcubiczirconia ）和- al _ 2o _ 3是兩種性能優良的陶瓷，前者是目前發現的最抗輻照的絕緣體，而後者則是抗輻照最差的絕緣體材料之一，研究重離子注入對其光學性能的影響並以此研究輻照效應，有重要的理論意義和應用價值。
  6. Developing status and prospect of organic food at home and abroad

    輻照食品保鮮技術的現狀及前景
  7. 3. by using the shack - hartmann wavefront sensor, the thermal distortion of the substrate, the single - layer dielectric thin films with different thickness, and the multilayer dielectric thin films with different multilayer thin films ( ybf3 / znse ) irradiated by co2 laser were studied experimentally. 4

    3 .利用夏克一哈特曼波前傳感器，對基底樣品以及不同厚度的介質單層膜樣品和不同膜系的ybf3 / znse介質多層膜樣品在c02激光輻照下的熱畸變進行了實驗研究。
  8. It is known that high intense pulsed ion beams ( hipib ) have a high viability to be used as an efficient energetic source for rapid film deposition and direct surface modification. up to now, however, there is still lack of a systematic work to reveal the influence of hipib on the film deposition and material modification although there are lots of papers have been published in the field. in the present work, these two practical applications of hipib were all investigated in detail

    根據強流脈沖離子束（ highintensepulseionbeam ? hipib ）技術具有快速沉積薄膜和材料表面輻照處理改性的特點，而目前對其薄膜沉積和材料輻照處理缺乏系統研究，本論文的工作分為兩部分，其一是類金剛石薄膜（ diamondlikecarbon ? dlc ）沉積，其二是高速鋼直接輻照處理表面改性。
  9. The band was previously associated with f - type color centers and v - type color centers, as analyzed in x - ray irradiated ysz sample. however, the absorption band observed in our experiments has a shift towards the longer wavelength ( red shift ) as comparing with that in the x - ray or neutron irradiated ysz spectra. this shift may mainly due to large local distortions near the f - type centers and the v - type centers and the presence of multiple color centers

    本文通過光吸收、光熒光、 tem 、 xps測試及trim96計算分別研究了不同注量xe ~ +注入ysz前後光學性能和缺陷形態變化，以及ni ~ +注入對不同摻雜單晶al _ 2o _ 3結構和光學性能的影響，得到以下結果： （ 1 ） ysz注量達到10 ~ （ 16 ） cm ~ （ - 2 ）時，開始出現由f型和v型色心重疊而產生的吸收帶，與x射線、中子輻照相比，重離子輻照產生了更為復雜的缺陷復合體而導致吸收峰紅移。
  10. The intensity at the. irradiated site decreased linearly with the power density of the irradiation light. this means that the light - induced change is a one - photon process. irradiations at different wavelengths indicate that the spectral change is frequency - selective

    暗恢復過程的研究表明，光輻照后光譜的強度有恢復到輻照前強度的趨勢，擬合發現存在兩個恢復常數，一個為2 . 5小時，另外一個特別長。
  11. Abstract : the reflective characteristics of sea and sky background radiation, which have important effect on the infrared signature from flight vehicle above sea, are studied in the paper. the statistical distribution of wave facet directions is discussed, the effects of randomly riging and falling sea wave on the sea surface radiation and on the sun light reflection are also discussed. calculation methods of irradiance from sea surface radiation and reflected sun light on observation point are derived in the paper. finally a computation example is given, which shows the sea and sky background radiation has important effect on infrared characteristic especially in the front area of a flight vehicle

    文摘:研究了對近海飛行體的紅外特性有重要影響的海空背景輻射的反射特性.討論了波浪面起伏隨機規律，隨機起伏對海面自身輻射及對陽光反射的影響，推演了此種隨機起伏波浪面的自身輻射及反射的陽光在觀測點形成的輻照度的計算方法.給出的算例結果表明，海空背景對飛行體的紅外特性尤其對其前半球的紅外特性有重要的意義
  12. The effective disturbance of laser to imagining track system is validated by two experiments. one is laser irradiates ccd detectors and the other is laser disturbs ccd imaging track evaluation system. the energy of laser disturbing ir imagining guided system effectively is estimated. the guidance error sources are analyzed and the hitting probabilities are calculated before the disturbance and after it by utilizing the formula about single missile shot percentage

    首先通過激光輻照面陣ccd探測器和激光干擾ccd成像跟蹤系統的兩個實驗，證明激光對成像跟蹤系統能形成有效干擾;然後對激光有效干擾紅外成像制導系統所需的能量進行估算;分析了制導誤差的來源，根據建立的導彈命中概率計算公式，具體計算激光干擾前後導彈命中概率。
  13. The effect of ultrasound microbubble on permeability of rat prostate

    超聲輻照微泡對大鼠前列腺增生組織通透性的影響
  14. Standard lamp and diffusers are very important calibration elements, in chapter three, first uv and vuv radiometric standard for calibration are introduced. then the fabrication and characteristics of baso4 diffuser and alminium diffuser are researched, the baso4 diffuser ' s hemispheric reflectance and bi - directional reflectance distribution function were measured and compared with lambtian surface, and the deviation from that of lambtian surface is given. in the experiment, al diffuser ' s brdf is researched, obtain the change of spectral characteristic of al diffuser, compare al diffuser ' s brdf before and after coated with al + mgf2, and different al diffusers with different surface roughness

    鋁漫反射板作為一個漫反射光學元件安裝在太陽紫外光譜監視器的入射狹縫前，太陽紫外光譜監視器在軌測量時，太陽輻射入射到鋁漫反射板后進入入射狹縫，光譜輻照度的角度是變化的，本章測量了鋁漫反射的相對雙向反射分佈函數，研究了鍍膜（ al + mgf _ 2 ）前後光譜反射率的變化，漫反射的光譜特性及漫反射板表面粗糙度對相對雙向反射分佈函數的影響，使得測量數據反演成為可能。
  15. Before 1990, more than a dozen of overseas nations had founded the standard of spectral irradiance and spectral radiance in succession. the standard of spectral irradiance and spectral radiance in this country founded in 1980s has not met the measurement accuracy required by the research development of national defence

    在90年代以前，國外陸續有十幾個國家先後建立了光譜輻照度、輻亮度標準，我國國家計量院於80年代左右建立的光譜輻照度和光譜輻亮度標準已遠不能滿足國防科研發展對測量精度的要求。
  16. In this thesis, we studied optical properties of eu3 + and mn2 + doped zns nanocrystallites. the new results are as follows : 1. zns : mn2 + ethanol colloids were synthesized and dispersed into pvb film. the luminescence enhancement of mn2 + was observed after ultraviolet irradiation

    制備出納米zns : mn2 +乙醇溶膠和pvb薄膜樣品，均觀察到紫外光輻照下的熒光增強現象，增長倍數超過20倍，高於以前的報導，並發現樣品在固體薄膜和溶膠中有不同的熒光增強行為。
  17. The treatment of extensive deep burn wound is mainly by transplantation of razor - thin graft or split - thickness skin autograft in clinic. but the lack of dermis makes the wound heal with scarring and contraction. we can prepare a new kind of acellular dermal matrix ( adm ) by the method of naoh - maceration. first the acellular dermal matrix became vascularized within 3 weeks after implantation into full thickness skin defects in sd rats, then auto - split - thickness skin was overlaid on it. by animal experiments, we observed that the new kind of composite skin can reduce scarring and contraction of transplantation of razor - thin or split - thickness skin autograft

    目前在臨床上治療大面積深度燒傷的方法是移植刃厚或斷層自體皮，但因缺乏足夠的真皮成分，常造成疤痕和攣縮，本實驗用naoh消蝕法研製出一種新的真皮基質（ adm ） ，先將其移植于全厚皮膚缺損的大鼠背部創面，外覆蓋輻照豬皮保護3周，使其血管化，再在其上移植斷層自體皮，經動物實驗我們觀察到這種新型復合皮膚，可以減少單純移植刃厚或斷層自體皮造成疤痕和攣縮。
  18. Based on statistical data from radiotherapy patients and atomic bomb survivors in japan, the induction of leukemia has a maximum at several years after the irradiation and will return to the normal incident level after about 25 years

    根據放射治療病人及日本原子彈倖存者的觀察資料，輻射誘發白血病的發生率在受照后幾年達到最高峰，經過大約25年後恢復到受照前水平。
  19. As a wide bandgap semiconductor material, silicon carbide is an exellent material with superior thermal, electrical, mechanical and chemical properties for the fabrication of high temperature, high power, high frequency and radiation hardening electronic devices

    Sic是一種寬帶隙半導體材料、第三代半導體材料的代表，是製造高溫、高頻、大功率、抗輻照等半導體器件的優選材料，又被稱為極端電子學材料，在微電子學領域具有廣闊的應用前景。
  20. The attractive characteristics and the excellent electric properties of sic has led us to the fabrication of electronic devices used in strong radiation environments

    目前sic作為一種在抗輻照領域有著巨大應用前景的極端電子學材料而倍受人們關注。
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