脈沖熒光 的英文怎麼說
中文拼音 [màichōngyíngguāng]
脈沖熒光
英文
pulse fluorescence-
X fluorescence can quickly carry out measurement without damage and motion. it was widely adopted in geology, mining, environmental - protection, archaeology and industrial - analysis. its principium is that in measurement of radioactivity, the pulse energy is directly proportional to pulse signal amplitude detected by the radiation detector
X熒光方法可以實現快速、原位、無損測量，被廣泛應用於地質、礦業、環保、考古、工業在線分析等領域，其原理是：在核能譜測量工作中探測器輸出的脈沖信號與入射粒子的能量成正比，通過測量脈沖信號幅度，得到入射粒子的能量。Fluorescence power transfer function, three - dimensional point spread function ( 3d - psf ) and three - dimensional optical transfer function ( sd - otf ) for the various fluorescent wavelength of the two kinds of fluorescence confocal scanning microscopy are calculated in this paper by using fourier imaging theory. the results show that the fluorescent wavelength has influence on imaging property of confocal microscopy such as spatial cut - off frequency, resolution and 3d - otf. there is a different missing - cone in the 3 - d space of otf when the ratio of excitation wavelength to fluorescent wavelength decreases
本文在sheppard和gumin等人的理論基礎上，利用fourier光學成像理論，討論了不同熒光波長對單光子和雙光子共焦顯微鏡成像特性的影響，導出了單光子和雙光子共焦顯微鏡的熒光功率傳輸函數、三維脈沖響應函數和三維光學傳遞函數，得到了它們在不同激發波長與熒光波長比值時具體的表達式，並且通過數值計算，得到了它們的曲線圖，結果表明：隨著激發波長與熒光波長比值的增加，焦斑的橫向分佈和縱向分佈變窄，橫向解析度和縱向解析度提高，系統的成像效果變好，當激發波長與熒光波長的比值下降到一定程度時，可以看到不同程度的失錐現象。Abstract : the determination of aminoglycoside antibiotics in the biological fluid has been reviewed. the methods mainly included bioassay, thin - layer chromatography, high - performance liquid chromatography ( hplc ) and a variety of immunoassay ( ia ), for example, enzyme immunoassay, fluorescence polarization immunoassay, quenching fluorescence immunoassay, chemiluminescent immunoassay ， etc., in which hplc and ia were used more often
文摘:綜述了氨基糖苷類抗生素的體內分析方法.主要有：生物學分析法；薄層色譜法；高效液相色譜法；差示脈沖極譜及各種免疫法，如酶免疫法，熒光偏振免疫法，膠乳凝集抑制速率比濁法等.其中高效液相色譜法和免疫法應用較多Aqueous fluid volume and [ c1 ~ j were assayed in samples withdrawn by micropipettes. intraocular pressure ( top ), pressure - dependent outflow, and anterior chamber compliance were determined from pressure measurements in response to pulsed and continuous fluid infusions into the anterior chamber using micropipettes. result : in wildtype mice ( gdi genetic background, age 4 - 6 weeks ), iop was 16. 0 ? 0. 4 mmhg, aqueous fluid volume was 7. 2 ? 0. 3 ul, aqueous fluid production was 3. 6 ? 0. 2 ul / hr, aqueous fluid outflow was 0. 36 ? 0. 06 ul / hr / mmhg, and anterior chamber compliance was 0. 036 ? 0. 006 ul / mmhg ( mean ? se, 8 - 10 eyes )
實驗方法包括：將熒光物質用電離子滲透的方法穿透角膜導入活體小鼠的前房中，然後應用共聚焦顯微鏡根據熒光強度變化測量房水生成率；通過顯微注射針吸取房水檢測房水容積和氯離子濃度；顯微玻璃管刺入前房測量眼內壓，並將生理鹽水分別以連續和脈沖兩種方式注入前房，測量房水間隙的順應性和房水排出與眼內壓的相關性。By the former experiment, we know that the fiber optic gas sensor with the pulse light of the blue light led can emit the steady fluorescence. so we can detect the density of oxygen through
技術方案上採用數字脈沖激勵led藍紫光源照射敏感元件獲得穩定的熒光信號，再通過測量熒光壽命檢測氧氣濃度。The sem and the pl observation showed that the surface of porous silicon prepared by pulsed etching was more uniform and the si particles were smaller. the intensity of pl formed by pulsed etching method was enhanced and the peak had blue shift comparing that formed by dc electrochemical etching method. at the same time, it was observed that the smaller the dimension of the porous silicon, the broader energy gap of the porous silicon
採用脈沖和直流電化學腐蝕兩種方法制備多孔硅，對這兩種方法制備的多孔硅樣品進行掃描電鏡和熒光光譜的測量，發現脈沖腐蝕制備的多孔硅樣品比直流腐蝕制備的多孔硅樣品表面均勻、顆粒尺寸小、發光強度大，而且發光峰位有明顯的藍移現象。分享友人