chemical quenching 中文意思是什麼
chemical quenching
解釋
化學猝滅-
It measures the density of oxygen by detecting the life - span of the fluorescence quenching. the so - called fluorescence quenching is a kind of physics or chemistry process that the fluorescence material has chemical or physical reactions with certain substance is selected here. it has the advantage of good stability of fluorescence, long life span and the strong quenching effect
本課題光纖氧氣傳感器檢測系統是基於熒光猝滅效應的檢測機制，通過測定熒光壽命從而檢測氧氣濃度的，熒光猝滅效應所引起的熒光壽命具有很好的穩定性、猝滅效果以及系統使用壽命長。 -
The preparation of optically active composite is a promising alternative to obtain a kind of new and competitive sensing membrane for fiber optic sensors, and has attracted the global attention. in this thesis, the modified sol - gel sensing membranes based on fluorescence quenching have been prepared by using tetraethoxysilane ( teos ) and dimthyldimethoxysilane ( dds ) as the main material, formamide as the drying control chemical additive ( dcca ), ru ( phen ) 3cl2 and ru ( bpy ) 3cl2 as the indicator. this kind of membranes is crack - free and has low indicator - leaking rate
本文以四乙氧基硅烷（ teos ） 、二甲基二乙氧基硅烷（ dds ）為主要原料，以甲酰胺為控制乾燥劑，二價釕離子絡合物釕（ ） ?聯吡啶（ ru （ bpy ） _ 3cl _ 2 ）和釕（ ） ?菲咯啉（ ru （ phen ） _ 3cl _ 2 ）為熒光指示劑，採用改進的溶膠凝膠技術，通過添加控制乾燥劑和有機摻雜兩種手段，制備了基於熒光猝滅原理的光纖氧敏感膜。 -
The most widely used techniques for the preparation of amorphous alloy catalyst are classified into rapid quenching method, chemical reduction method and impregnation - chemical reduction method
通過驟冷法、化學還原法、浸漬還原法可以得到滿足不同催化反應需要的非晶態合金催化劑，並可以通過制備條件的變化調變催化劑的性能。 -
The reason of this may be as follows, firstly, the model has not including some important physical process such as gap effect, wall quenching extinction effect, which may greatly influence the emissions ; secondly, the emissions formation in the cylinder are not all of equilibrium process but the process controlled by the chemical kinetics
原因之一是本模型未考慮諸多對排放具有顯著影響的物理過程，如縫隙效應、壁面激冷淬熄效應等，其次說明發動機的缸內的過程並不全是平衡過程，許多排放物的生成受化學反應速度，即化學動力學的控制。 -
It was pointed out that with different chemical composition and different iso - quenching temperature, the structure morphologies of the bainite transition products are different from each other, the ferrite is the indispensable constituent, and whether there is or not carbide existing is not the necessary criterion to discern the bainite
指出不同化學成分和不同等溫溫度時貝氏體相變產物的組織形態不同，鐵素體是貝氏體中不可缺少的組成部分，以及碳化物的存在與否不是判斷貝氏體的必要依據。 -
On - line monitoring of dissolved oxygen in water by a fiber - optic chemical sensor based on fluorescence quenching
基於熒光猝滅原理的光纖化學傳感器在線監測水中溶解氧 -
We consider that surface state act as quenching centers. with the irradiation, the surface state decreases and therefore luminescence of mn2 + increases. reduction of quenching centers is the result of chemical change by obtaining energy from zns excited by uv light
熒光增強的原因是由於zns基質向mn2 +離子和表面態的能量傳遞是兩個相互競爭的過程，紫外光輻照下表面猝滅中心數目不斷減少從而mn2 +離子的發光增強。
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