激微波 的英文怎麼說
中文拼音 [jīwéibō]
激微波
英文
maser-
Microwave amplification by stimulated emission of radiation
受激幅射式微波放Changes in the gain could occur if the length of the maser changed because of turbulent gas motions.
氣體的湍流運動使微波激射區的長度改變時,增益就可能發生改變。At low temperatures, the difference in population of atoms between two energy levels, which is the basis of maser action, is greater.
在低溫下,作為微波激射作用基礎的兩個能級之間原子數的差別較大。The region is otherwise undistinguished at optical and radio wavelengths, but it does contain a number of oh and maser sources.
此區在光學和射電波段是不著名的,但卻包含有許多OH和微波激射源。During the early nineteen-fifties a remarkable device known as the maser came into being through the efforts of a number of scientists.
在本世紀五十年代初,通過許多科學家的努力,出現了一種引人注目的器件,叫做微波激射器。The most likely and obvious radiative connection between the infrared and the masers is through the mechanism of radiative pumping of the maser.
紅外輻射及微波激射間最可能而又明顯的輻射聯系是通過微波激射的輻射抽運機制實現的。Atomic hydrogen maser
氫原子微波激射器" for fundamental work in the field of quantum electronics, which has led to the construction of oscillators and amplifiers based on the maser - laser principle
在量子電子學領域的基礎研究成果,為微波激射器激光器的發明奠定理論基礎The main use of chinese medicine, the cooperation of chinese and western medicine treats the acute and chronic gastritis, the stomach precancerous lesion, difficult curative digestive ulcer, the ulcerous colitis, irritable colon syndrome, and cures stoma narrowness, the benign and malignancy narrowness of esophagus cardiac and gastriointestinal tract polyps under the electronic stomach and intestines mirror with the laser and microwave
中醫為主、中西醫結合治療急、慢性胃炎、胃癌前期病變、難治性消化性潰瘍、潰瘍性結腸炎、腸易激綜合癥,並能夠在電子胃腸鏡下用激光、微波治療吻合口狹窄、食管賁門良惡性狹窄及胃腸道息肉。< uk > the region is otherwise undistinguished at optical and radio wavelengths, but it does contain a number of oh and maser sources. < / uk >
< uk >此區在光學和射電波段是不著名的,但卻包含有許多oh和微波激射源。 < / uk >In addition, ba6 - 3xnd8 + 2xti18o54 ( bnt ) ceramics is another important microwave dielectric material due to its applications in antenna duplexor, but the characteristics of bnt thin films have rarely been reported
同時,我們採用激光脈沖沉積法制備了ba6 - 3xnd8 + 2xti18o54 ( bnt )薄膜。 bnt是另一類被廣泛研究的微波介質材料。Laser physics is compositive synthesis of the quantum theory, wireless technology, microwave spectroscopy and solid physics, and it ? also the brilliant production of close - knit combine in science and technology, theoretics and practice. after the naissance, the developments of laser physics emerge rapidly, our living, behavior and concept were affected and influenced by laser
激光物理的創立,是人類認識自然道路上的一座里程碑。它是現代物理學的一項重大成果,是20世紀量子理論、無線電電子學、微波波譜學以及固體物理學的綜合產物,也是科學與技術、理論與實踐緊密結合產生的燦爛成果。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。We considered the frequency chosen character of erf and its modulatory ability may be owe to the coupling of microwave and the polaritons. at the same time there may be other coupling effect and excitation too
初步認為頻率選擇性及透過強度可調控性與電流變液和微波之間的相互作用導致的極化激元之間的禍合有關。Numerical simulations were done to show the distortion of the wavefront and the interference pattern under several kinds of typical plasma density distributions. the ray path in plasma was calculated by the numerical solution of the vector equation of light ray, when the plasma density was closing to the critical electron density of the laser frequency. through the simulations, the factors that influence the measurement were found out under different density distributions and shapes of plasma
在此基礎上,採用數值模擬的方法,計算了在幾種典型的等離子體密度分佈下,激光波面的變化和產生的干涉圖樣;並用光線矢量微分方程的數值解法計算了當等離子體密度接近光頻臨界電子密度時,光線在等離子體中的傳播路徑,從中掌握了在不同的等離子體密度和形狀下,進行干涉測量所應估計到的因素。Because of the nonlinear effect, the imaging property of two - photon confocal microscopy is very different from that of the conventional confocal microscopy. that the fluorescent wavelength equals to the excitation wavelength has been discussed theoretically as we know
在僅有的理論研究中,絕大多數文獻都只是討論了熒光波長等於激發波長這一特殊情況,很少討論不同熒光波長對共焦顯微鏡成像特性的影響。Neurophones and similar ( more advanced ) technologies - satellite or ground based. these can deliver aural harassment via microwaves or lasers aimed at the target
腦聽器以及類似的(更先進的)技術-衛星或地面為基礎的。這些能傳遞聽覺騷擾通過微波或激光對準目標。In this dissertation, researching from the basic concept of large signal network analysis, we discuss the measurement theory and technology of rf network nonlinearity and the characterization technology of intermodulation distortion in detail, and analyse some nonlinear characteristic excited with a one tone or multi - tone, such as am - am, harmonic distortion, intermodulation distortion, adjacent channel power ratio and how to qualitatively analyse nonlinearity of rf network to make the measurement and calibration
本課題從大信號網路分析的基本概念出發,詳細討論了射頻網路非線性的測量理論和技術以及互調失真表徵技術,分析了在單頻音和多頻音信號激勵下的一些非線性特性,如am - am , am - pm ,諧波失真,互調失真( imd )和臨近通道功率比( acpr )等,以及根據包絡域方法定性地分析射頻微波網路的非線性特性,以此來進行射頻網路的非線性測量和校準。This led to the first amplification and generation of electromagnetic waves by stimulated emission in early 1954. they called this device a maser ( microwave amplification by stimulated emission of radiation )
光來放大媒質的儀器,並於一九五四年成功研製成第一臺微波激射放大器,稱為maser ( microwaveamplificationbysimulatedemissionofradiation ) 。As the key component of the beam - wave interaction of a traveling wave tube ( twt ) for exciting microwave energy, the slow - wave structure ( sws ) basically determines the performance of the twt
慢波系統作為行波管注波互相作用以激勵微波能量的核心部件,它的優劣直接決定了行波管的性能。分享友人