熒光產量 的英文怎麼說
中文拼音 [yíngguāngchǎnliáng]
熒光產量
英文
fluorescence yield-
In my present study, changes in structure and function of all parts of non - leaf organs ( culms, paleae, lemmas, awns, and glumes ) were investigated during a series of developmental stages and in various cultivars. characterization of the culms of lodging - resistant wheat varieties lodging is a potential cause of yield reduction in cereal crops ( crook et al, 1994 )
其中，比較分析了非葉器官葉綠體超微結構的差異，測量了非葉器官的放氧和低溫熒光等生理指標，嘗試從結構與功能相結合的角度，探討非葉器官在提高作物產量中所起的重要作用。Some by - products of this work can be used as routine tools in the uv laser laboratory. commercial video ccd cameras are used to image uv laser and soft x rays, window glass as a fluorescer is used to indirectly measure the uv laser beam profile with high energy density, and a special glass which permits uv light to pass through while absorbs the visible, is introduced into the uv beam profiling in strong visible stray light environment
實驗中發展了一些測量技術，例如用可見光視頻ccd直接測量紫外激光的光束分佈和激光等離子體產生的x光二維圖象，利用窗玻璃作為熒光體測量能量密度較高的紫外光束分佈，利用可見吸收紫外透射玻璃製成的衰減器測量有嚴重背景光的紫外光束分佈，可以作為實驗室的常規測量工具，並有一定的推廣價值。Fluorescence quantum yield
熒光量子產率After the stolon had suffered from severing disturbance, clonal ramets could keep photosynthetic organ from being damaged through the plastic responses of the chlorophyll fluorescence traits, such as increasing nonphotochemical quenching of chlorophyll fluorescence ( npq ), decreasing actual photochemical efficiency of ps ii in the light ( f / fm " ) and photochemical electron transport rate ( etr ). moreover, the clonal ramets could also increase water use efficiency by means of decreasing stomatal conductance
在匍匐莖受到切斷干擾后，臭柏能通過提高非光化學猝滅（ npq ） 、降低ps實際光化學量子產量（ f fm 』 ）和表觀光合電子傳遞速率（ etr ）等葉綠素熒光特性的可塑性反應來保護小枝光合機構不被破壞，並且可以降低氣孔導度以提高水分利用效率。The fluorescence intensity of pb became weak when the crystal phase began to form in tha the lattice vibration absorbed the energy induced by the fluorescent transition
隨著體系中晶態的生成， pb離子進入晶格中，由於晶格振動所產生的聲子吸收了躍遷回落產生的發光能量， pb離子的熒光強度明顯下降。X - ray has been widely used in industry and medicine since it was found in 1895, such as nondestructive detection of cavities in objects using x - ray " s property of penetration, trace element analysis using x - ray fluorescence, radiation therapy using x - ray " s ability to damage protein, and so on
X射線源在生產和醫療上一直以來具有廣泛的應用。利用x射線的穿透性可進行無損探傷；利用x射線的熒光效應可對物質進行痕量分析；利用x射線使蛋白質變性可對腫瘤進行放療。By using dta, ir and xrd analysis, the result show that : in the gel glass of these two system, the phase change of the zirconia and the alumina are restricted because of the high content of silica which leads to the stabilization of the prepared materials. and the applications of these two materials is introduced briefly. by using absorption spetrum and fluorescence spetra analysis, the result show that : in the gel glass of the nd - doped sio2 - al2o3 gel bulk glass - ceramic, the strongest emmision is at about 1. 06u m, the clustering of nd3 + ion is controlled by the addition of alumina which creates the " cage effect " to nd3 + ion
同時分別對凝膠進行了dta 、 ir 、 xrd分析，結果表明：對於此兩個系統的凝膠玻璃-陶瓷，由於二氧化硅含量較高，使得氧化鋯及氧化鋁的相變受到約束，從而保證所制備材料的穩定化，同時對兩種材料的應用也作了簡單介紹；對摻釹sio _ 2 - al _ 2o _ 3激光玻璃-陶瓷進行了熒光及吸收光譜分析，結果表明：釹鋁共摻雜二氧化硅玻璃的最強發射處於1 . 06 m左右，加入的少量氧化鋁使釹離子產生「籠效應」 ，阻止釹的團聚。Their fluorescence emission properties were studied and their photolysis kinetics was investigated in different media by means of steady state photolysis method
考察了其熒光光譜特性，發現甲氧基苯甲酰亞甲基光產堿劑的熒光量子效率較低，而萘甲酰亞甲基光產堿劑較高。In order to overcome problems arisen from the application of x fluorescence analysis into complex spectrum produced by archaeological ceramic fragments with multi - element, low content and thick ground, we have employed the artificial neural network into the research of x fluorescence archaeology and conducted three kinds of research works. as the first one, we have applied the linear olam network ( optimal linear association memory network ) and the non - linear bp network ( back - propagation network ) respectively to analyze the complex x fluorescence spectrum of archaeological samples, and taken both results of spectrum analysis to compare with each other. the second, the method of pattern recognition of bp network was tentatively used to perform intelligent identification of production places of these archaeological samples
針對科技考古中對大量考古陶片進行產地研究時x熒光分析對多元素、低含量、厚基底考古陶片產生的復雜譜分析的問題，將人工神經網路引入x熒光考古中，進行了三方面的研究工作：一是用線性olam網路（最優線性聯想網路）和非線性bp網路（誤差反傳導網路）分別對考古樣品的x熒光復雜譜進行解譜，並比較二者的解譜效果；二是用bp網路模式識別方法對考古樣品的產地進行智能識別；三是為了提高網路運算的可靠性和減小基體效應及電噪聲的干擾和影響，研究並提出了三種網路學習前的譜數據預處理方法。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。The characterization on those nano sulfide qds are also presented in the thesis. as nanoparticles with core shell structure have much higher fluorescence quantum efficiency, base on cds of synthesis, some efforts have also been put into the experiment on synthesis of cds / zns core - shell particles
由於具有核/殼結構納米顆粒能夠實現較高熒光量子產率，在納米cds量子點制備的基礎上，本文對核/殼結構cds / zns量子點的制備工藝進行了初步的探索研究。The company has advanced equipment, computer cad system, precise mould processing equipment, high speed punch, various electroplating production line and precise projection equipment, universal tool microscope, 3 coordinates measuring meters, fluorescent x - ray coating thickness thickness inspecting instruments
公司設備先進，擁有計算機輔助設計系統，精密模具加工設備，高速精密沖床、各種鍍種的電鍍生產線以及精密投影儀、萬能工具顯微鏡、三坐標測量儀、熒光x線鍍層測厚儀等檢測設備。Based on the theoretical analysis and experimental researches, it is presented that the wider spectra are resulted from the many fluorophores with large numbers of vibrational energy levels on the ground level in the blood cells, and the reduction of the spectral intensity is due to the reabsorption of the blood cells and the energy transfer of the collisions between the fluorophore and another one or other macromolecule. on the other hand, when the concentration of the blood cells is increased, the reabsorption of the blood cells, the secondary fluorescence due to the reabsorption and the influence of the concentration on the energy levels of fluorophores are all the factors of the red - shifted spectral peaks
在進行理論分析和研究的基礎上，提出了因血細胞中存在多種熒光團，且這些熒光團的電子能級上又存在大量的不同的振動能級，從而導致被激發的熒光團發出較寬的熒光光譜；血細胞濃度的增大，熒光團以及其他大分子之間的距離變小，造成它們之間因碰撞的能量轉移概率加大，因而易產生熒光猝滅，結果導致熒光強度的變小；血細胞溶液中重吸收所導致的熒光猝滅和二次熒光發射，以及血細胞濃度的變化對其中熒光團能級系統的影響都是導致熒光峰值波長「紅移」的原因；進而研究了led光誘導血細胞產生熒光光譜的機理。Determination of trace arsenic in aquatic foods by hydride generation - atomic fluorescence spectrometry
氫化發生原子熒光光譜法測定水產食品中的微量砷Zbd model whiteness measurement meter is mainly applicable to measurement of the whiteness of colourless even surface objects and powder, such as paper, pulp, ceramics, enamel, plastics, enamel, plastics, various fiber and fabric, wheat flour, talcum powed, starch, coating and chemicals etc. it canalso measure comparatively accurately the fluorescent whiteness of the objects with fluorescentbrighterner
Zbd型白度測定儀主要用於測量非彩色表面平整的物體及粉末的?白度? ，如紙張，紙漿，陶瓷，搪瓷，塑料，個種織維及其織品，麵粉，滑石粉，澱粉，塗料及化工產品等，對于添加熒光增白劑的物品，本機也能比較準確的測量其?熒光白度? 。1 the spectral power distribution of light from fluorescent uv lamps is significantly different from that produced in light and water exposure devices using other light sources
在光和水老化設備中所用的紫外熒光產生的光的光譜能量分佈與別的光源有著顯著差異。Our company is strong in technology, advanced production equipment, product quality, the service integrity, steadfast, a scientific system of production management and services to continually improve the ability of enterprises to innovate, is a totally independent production of fluorescent lamp, clean up lights, inductance ballasts, fluorescent tubes, three ? lights and various accessories lampholders integrated enterprise, and the company ' s products have full access to the country “ ccc ” mandatory product certification
公司技術力量雄厚，生產設備先進，產品質量穩定，服務誠信踏實，一整套科學的生產管理及服務體系使企業創新能力不斷提高，是一家完全能夠自主生產各類熒光燈、凈化燈、電感鎮流器、熒光燈管、三防燈及各類燈座配件的綜合性企業，並且本公司產品已全面獲得了國家「 ccc 」強制性產品認證。Abstract : polyphenylacetylenes were synthesized by rn ( nbd ) cl 2 and wcl6 / ph4sn catalyst systems in n2 at room temperature. polymers with high yield and high molecular weight were obtained. their structures were characterized by uv, ir, nmr and gpc, respectively. the fluorescence of the polymer solution with different concentration was investigated using variable excitation wavelength from uv to visible region. the relation between fluorescence and polymer structure was studied. the results showed that the molecular chain structure has great influence on fluorescence of the polymers. the emitting peak wavelength of fluorescence for the polymer of high stereoregularity is independent of solution concentration and excitation wavelength. the emitting peak wavelength of fluorescence for the polymer with disordered molecular chain arrangement varies with changing the solution concentration and excitation wavelength, and different emission sites in molecular chains and low emitting yield are shown. the measurement and analysis of fluorescence spectroscopy of polyphenylacetylenes may provide some useful information to judge the molecular chain arrangement in some conjugated polymers
文摘:使用有機金屬銠、金屬鎢/四苯基錫催化劑體系聚合苯乙炔，分別獲得了高產率和高分子量的聚苯乙炔.使用uv ， ir ， nmr ， gpc等分別對聚合物結構進行了表徵.採用不同波長的激發光對聚合物熒光性能進行研究，詳細分析了聚合物結構與熒光性能之間的關系.研究結果發現，不同聚合物結構對聚合物熒光性能產生很大影響，規整性高的聚合物，將有較高的發光量子效率；聚合物規整性差，將可能導致多個熒光發光結構點，其熒光強度降低.聚合物熒光光譜研究將對某些共軛聚合物結構的規整性分析提供一些有用的信息This part emphasizes the synthesis of nanoarrays, aiming at controlling the size and distance of nanocrystallites using calixarene derivatives by altering the size, length and chemical structure of the organic molecules ; 2. this part emphasizes in situ synthesis strategy for fabrication of polymer network of zns based nanopowder, aiming at size controls, coating and preventing agglomeration following " one - pot " synthesis ; this method fits to low cost, large scale production ; 3. according to development in zno nanomaterials, we first report on the synthesis, characterization of amorphous zno, aiming at describing the principles and approaches of synthesis techniques, optical properties, spatial structure and doped effect ; the amorphous zno displays cage - like structure, showing a strong ultraviolet emission while the visible emission is nearly fully quenched, a potential uv - emission material ; 4
本論文以量子結構自組裝為出發點，提出利用杯芳烴及其衍生物的化學受限反應實現尺寸可調半導體納米粒子自組裝；提出有機聚合網路原位組裝zns基納米熒光粉方法，把熒光粉的納米化、包敷、防團聚在「一鍋」反應中完成，適于低成本，批量生產；根據當前zno的研究情況，我們首次合成了非晶zno ，研究了它的光學性質，確定了它的結構，並對其摻雜進行了初步的研究，非晶zno表現出強的深紫外發光特性，而可見發射非常弱，是一種有巨大潛在應用價值的深紫外發光材料；利用非晶zno的亞穩特性，對晶化過程中非晶zno納米晶zno三維受限量子結構特性，界面特性進行了深入的研究；利用固相熱分解一般受擴散控制特性，實現了尺寸可控的zno三維量子結構的自組裝；利用非晶zno的高度分散性，容易均勻成膜特性，實現了非晶籽晶誘導低溫液相外延自組裝生長高取向zno晶體薄膜。Standard test method for sulfur in petroleum and petroleum products by energy - dispersive x - ray fluorescence spectrometry
用能量擴散x -射線熒光光度法測定石油和石油產品中硫含量的標準試驗方法分享友人