粒子能譜 的英文怎麼說
中文拼音 [lìzinéngpǔ]
粒子能譜
英文
particle spectrum-
Radiation spectrums of relativistic charged particles in a dipolar magnetic field were studied numerically in detail by using the current density of moving charged particles in this paper
摘要從運動的荷電粒子產生的流密度出發,研究了在地球偶極磁場中運動的相對論性荷電粒子的輻射能量譜,並對其進行數值計算。Elastic collision and inelastic collision are considered in oxygen molecule, nitrogen molecule by electron impart. the mail simulation results were as follow : ( 1 ) the variations of drift velocity and the average energy of electron with the e / n in o2 and n2 are obtained. the number of electrons for excitation, ionization, dissociation and dissociative ionization collision with the e / n and the energy of electron are analyzed emphatically
考慮了各種彈性和非彈性碰撞過程,在純氧氣、純氮氣中,給出了不同簡化場e n條件下的電子漂移速度和平均電子能量的變化;著重分析了激發、電離、分解及分解電離碰撞的粒子數隨e n 、電子能量的變化,同時計算了激發發射光譜的波長。The electronic temperature, intensities of all lines and continuous spectra gradually increased with the increment of laser energy, and they got to maximum at different laser energy. our results of copper and aluminum show that there are possibly different thresholds of laser energy to electronic temperature and intensities of emission spectra of laser ablated plasma. at the different environmental gas pressure, spatial emission intensity distribution is explained by the competition among " heat reservoir effect ", " confined effect " and " s hadow effect "
認為cu等離子體羽的發光機制是由電子與粒子的碰撞傳能、電子與離子的復合形成的;隨激光能量的增加, cu等離子體特徵輻射(分立譜) 、連續背景輻射(連續譜) 、電子溫度都出現最大值;結合對al的實驗結果說明:激光燒蝕金屬產生的等離子體,其特徵輻射、連續輻射、電子溫度可能都存在一定的能量閾值;背景氣壓對激光燒蝕等離子體譜線的影響,其機理可以認為是「熱庫效應」 、 「約束效應」及「陰影效應」相互競爭的綜合結果。Abstract : the effect of correction of self - consistent potential on electronic structure in simple cubic nanocrystal particles is calculated by means of the green ' s function method in the tight - binding approximation, taking only the nearest neighbor matrix elements into account. the numerical results show that the electronic energy spectrum is shifted, the chemical potential is not equal to the atomic energy level, the electronic density at each lattice point is changed, and the variation of electronic density at surface lattice point is the largest
文摘:在緊束縛近似下,只計及最近鄰的矩陣元,採用格林函數計算了自洽勢修正對簡立方納米晶體顆粒的電子結構的影響,發現電子能譜發生了移動,化學勢不等於格點原子能級,各格點的電子密度也發生了變化,其中以表面格點的電子密度變化最大。In chapter one, we make a review of particle acceleration theory and the use in solar corona. in chapter two, first we get the spectrum of synchrotron radiation then obtain the electron energy spectrum. in last chapter, we select the typical solar active region parameter to compare our result to the observation and discuss the acceleration mechanism
本文第一章對粒子加速理論以及目前各種加速理論在太陽日冕中的應用作了介紹;第二章通過理論計算得到同步加速輻射譜以及電子能譜;第三章選取太陽日冕中典型參數,對同步加速輻射加速日冕快電子作了簡單討論。The absorption of this radiation in various lines followed by cascade transitions to lower levels might ultimately produce an anomalously high population for the excited levels of these molecules.
在各譜線處對這種輻射的吸收以及接著向低能級的級聯躍遷最終可能使這些分子的激發能級產生異常高的粒子數。The entropy or number of states of system or subsystem are closely related to interaction of particles and energy level distribution, therefore, to study the temperature dependence of the specific heat may supply some important and useful microscopic information which may play an important role in understanding electronic structure, density of state, phonon spectrum etc. the specific heat measurements at low temperatures also play important roles in the finding of the third law of thermodynamics, the quantum theory of solid and bcs theory for superconducting etc. moreover, specific heat measurements help us to understand the different kinds of phase transitions ( such as : structural phase transition, magnetic phase transition, superconducting phase transition etc. ) and the scaling behavior near the critical point
系統、子系統的熵或微觀狀態數與微觀粒子間的相互作用及能級分佈密切相關,因此研究比熱與溫度的依賴關系能夠提供被測量系統許多極其有用的微觀信息,對理解固體的電子結構、電子態密度、聲子譜等起著十分重要的作用。低溫比熱的測量和研究對熱力學第三定律、固體量子理論和超導bcs等理論的建立起到了積極的推動作用。比熱研究還有助於認識各類相變如結構相變,磁性相變,超導相變等及臨界點附近的標度規律。At the other hand, we can perform the rrpa calculation with the continuum replaced by a set of outgoing single particle resonances, it indicates that the resonances in the continuum play an important role in the description of nuclear dynamical processes, such as collective giant resonances. energies, widths and wave functions of the single particle resonant continuum are determined by solving scattering states of the dirac equation with proper asymptotic conditions for the continuous spectrum in the r ' elativistic mean field theory. the relativistic regular and irregular coulomb wave functions are calculated numerically
在進行相對論無規位相近似計算時將連續譜中所有的正能態用單粒子共振態來代替,並且在計算中採用單粒子共振態的真實寬度,利用這種方法我們計算了核的同位旋標量巨八極共振響應函數,並且和考慮了連續譜中所有正能態貢獻的結果進行比較,計算結果表明,連續譜中只考慮單粒子共振態對核的集體激發的貢獻時,給出的響應函數基本上能夠重現考慮了所有正能態貢獻時的計算結果,這說明了在核的集體激發中,連續譜中主要是單粒子共振態的貢獻。Scattered ions from the au foil passing through the q3d magnetic spectrometer, recoiled au ions were deflected, pure ions with single energy and single linear energy transfer were obtained
經過q3d磁譜儀的磁偏轉,去掉反沖au離子和其它雜散粒子,得到具有單一線傳能密度( let )值的離子。Our research aims to research and design an spectrometer - identificator to simultaneously or separately detect the fluxes and spectra of protons, alpha particles, oxygen and iron ions distributed in space
為了滿足當前空間環境的探測需要,需要研製一臺全頻道的空間帶電粒子探測譜儀,該譜儀能夠同時測量空間質子、粒子和重離子的能譜和通量分佈。The mechanical modifying equipment was used to prepare compounded micro - spheres from pmma particles and ps particles with metal particles and tio2 nano - particles. the sem was used to observe the images of particles and x - ray photoelectron spectroscopy ( xps ) is used to obtain surface spectrum. herein the tio2 nano - particles can be dispersed on larger polymer particles and their surface morphology is different by using different polymer particles
使用掃描電鏡和光電子能譜對制得的復合微粒子進行表徵,發現該方法可以使納米tio _ 2粒子呈很好的分散狀態復合在聚合物微球及金屬粒子上,而且隨著聚合物微球原料的不同,納米tio _ 2粒子能在高聚物的表面的復合狀態也不同。Angular distribution and energy spectrum of the high - energy particles produced during the interaction of ultra - short ultra - intense ( us - ui ) laser pulse with plasma are studied in this paper
本論文研究了超短超強( us - ui )激光與等離子體相互作用中高能粒子發射的角分佈和能譜。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。Energy levels of single particle in 3 - dimensional and symmetrical deformed harmonic oscillator potential energy
軸對稱變形諧振子勢中的單粒子能譜The a particle spectrum is monitored with the associated particle method is analyzed. the factors to effect the neutron fluence rate are theoretically analyzed and calculated
對伴隨粒子法監測的粒子譜進行了分析,對各種可能出現的譜進行了討論,對影響中子注量的一些干擾因素進行了理論分析和計算。Furthermore, we compared the mechanical properties between the modified nano - cac03 / pp and unmodified nano - cac03 / pp. we have investigated the composites by means of mechanical testing, dsc, xrd, ft - ir, tem, sem, etc. the relation between the structure and property of the composites has been discussed in this thesis. we studied the nano - particles by means of ls particles size analysis, we also studied the modified nano - cac03 by means of ft - ir
論文中對caco _ 3粒子進行了粒度與比表面測試分析,對經鈦酸酯偶聯劑表面改性的納米caco _ 3粒子進行了紅外吸收光譜分析,對改性后的復合材料進行了力學性能測試、差熱掃描量熱分析、 x射線衍射譜、紅外吸收光譜、透射電鏡、掃描電鏡等分析,討論了樣品中結構和性能之間的關系。In order to understand the origin of lead in air, proton microprobe was used to measure pm10 environmental monitoring samples of wusong district, shanghai city, and lead pollution origin of this district was studied with micro - pixe spectrum " fingerprint " combined with pattern recognition technique
摘要為?解空氣中鉛的來源,用質子微探針測量了上海市吳淞地區空氣pm10環境監測樣品,用微束質子激發單顆粒x射線能譜「指紋」結合模式識別技術研究了該地區鉛污染的來源。Thus mechanical properties, heat resistance properties and solvent resistance properties of pu are greatly enhanced. crystal forms of composite materials, surfacial reactivity and adsorption assemble properties of zeolite are discussed in this paper by means of xrd, ftir and tg etc. the test results of xrd prove that mmt can be exfoliated into nanocomposites in pu / mmt, while zeolite keep its original crystal structure in pu / zeolite. the spectras of ftir prove that tdi can graft on the surface of the zeolite
Xrd測試結果證實了有機蒙脫土在聚氨酷體系中能夠剝離成納米粒子,而聚氨醋/沸石分子篩復合材料中分子篩仍保持原來的晶型結構; ftir譜圖驗證了異氰酸酷( tdi )可太原理工大學碩士學位論文摘要與沸石分子篩表面的硅經基進行接枝反應形成穩定的化學鍵;而tg分析結果則進一步證實了分子篩的穿孔機理。In the present research, scanning electron microscope ( sem ), laser raman spectroscopy ( lrs ), x - ray photoelectron spectroscopy ( xrs ), x - ray diffraction ( xrd ) and electron probe micro analysis ( epma ) were utilized to investigate the difference in micro - structure and elements distribution between domestic and foreign pdcs. combined with analysis on current manufacturing process, the mechanism for the difference was discussed. scanning electron microscope ( sem ), laser granularity analysis, atom emission spectroscopy ( aes ) and plasma emission spectroscopy ( icpaes ) are also utilized to investigate the grain shape and impurities of key material - diamond power
本課題採用掃描電鏡、拉曼光譜、光電子能譜、 x -射線衍射分析、電子探針等方法分析了國內外聚晶金剛石-硬質合金復合片在微觀組織結構、元素成分分佈方面的差異,結合對現有燒結工藝的分析,研討了造成這些差異的機理;採用掃描電子顯微鏡、激光粒度分析、原子發射光譜、等離子發射光譜等方法對關鍵原材料-金剛石微粉的晶形、雜質含量進行了比較分析測試。The effective method of nucleation and growth of nanoparticles as applied to synthesize w - and mo - containing polyoxometalates nanoparticles in precursor films by making use of their acidity or oxidative property. the controllable synthesis of nanoparticles can be achieved by increasing synthetic cycle of polyoxometalates. the composition, structure, and properties of the as prepared composite films have been characterized in detail by uv - vis, ftir, x - ray photoelectron spectra, scanning electron microscopy, atomic force microscopy, transmission electron microscopy and cycle voltammograms
利用有效的在前體膜中成核、生長納米粒子的方法,使用keggin型鎢系、鉬系多酸,有目的地利用其酸性,強氧化性,在膜中發生反應,從合成出基於多酸的納米粒子,通過增加多酸的反應循環數,我們可以實現了納米粒子的可控合成,採用uv - vis光譜、 ftir光譜、 x -射線光電子能譜、掃描電子顯微鏡、原子力顯微鏡、透射電子顯微鏡、循環伏安對所制備的納米復合膜進行了組成、結構和性質表徵。分享友人