differential absorption 中文意思是什麼
differential absorption
解釋
差色吸收- differential : adj 1 差別的，區別的；特定的。2 【數學】微分的。3 【物、機】差動的，差速的，差示的。n 1 （鐵路不...
- absorption : n. 1. 吸收，合併。2. 專心，一心不亂，熱中 （in）。3. 〈口語〉飲食。
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Two fundamental approaches, differential optical absorption spectra ( doas ) and wavelength modulation harmonic measurement, for gas light absorption detection are discussed
分析了波長調制諧波檢測技術和差分吸收檢測技術兩種弱信號檢測方法。 -
Based on the principle of differential optical absorption spectrometry ( doas ), a set of detecting instrument for indoor air quality is proposed
摘要基於差分光學吸收光譜法原理，研究了一套室內空氣質量檢測裝置。 -
Since applied in atmosphere monitoring at the end of 1970 ` s, differential optical absorption spectroscopy （ doas ） have made quiet great progress
差分吸收光譜技術（ doas ， differentialopticalabsorptionspectroscopy ）自20世紀70年代末被人們應用於大氣氣體監測以來，在這方面已經取得了長足的發展。 -
To ensure the charging pump working reliably, the following measures should be adopted : ( 1 ) adopting modified circular casing to reduce the radial force of the impeller and decrease the seal clearance ; ( 2 ) using radical ribs on impeller and helical sealing on shaft to realize minor pressure differential ; ( 3 ) using back pressure stuffing box to ensure sealing under small packing force ; ( 4 ) adopting self - lubricant flexible graphite stuffing for absorption of solids entering in the graphite in case of leaking
為確保灌注泵可靠工作，提出改進措施： （ 1 ）採用改型環形泵體降低葉輪的徑向力，減小軸封間隙，抑制泄漏； （ 2 ）採用背葉片降低葉片根部壓頭，獲得微壓，使軸封兩端承受較小壓差； （ 3 ）採用螺旋密封降低軸封兩端壓差，在保持微壓的同時避免出現負壓，密封效果更好； （ 4 ）採用反壓式填料密封結構，在很小的壓緊力下，即可保證密封； （ 5 ）採用具有潤滑功效的柔性石墨填料，即使發生軸封泄漏，進入石墨內部的固相顆粒也將隨著石墨的消耗而被鉆井液吸收。 -
The thesis has done the widespread investigation and study to the domestic and foreign ’ s technologies of analogy low voltage and low power, and analyzes the principles of work, merts and shortcomings of these technologies, based on the absorption of these technologies, it designs a 1. 5v low power rail - to - rail cmos operational amplifier. when designing input stage, in order to enable the input common mode voltage range to achieve rail - to - rail, it does not use the traditional differential input pair, but use the nmos tube and the pmos tube parallel supplementary differential input pair to the structure, and uses the proportional current mirror technology to realize the constant transconductance of input stage. in the middle gain stage design, the current mirror load does not use the traditional standard cascode structure, but uses the low voltage, wide - swing casecode structure which is suitable to work in low voltage. when designing output stage, in order to enhance the efficiency, it uses the push - pull common source stage amplifier as the output stage, the output voltage swing basically reached rail - to - rail. the thesis changes the design of the traditional normal source based on the operational amplifier, uses the differential amplifier with current mirror load to design a normal current source. the normal current source provides the stable bias current and the bias voltage to the operational amplifier, so the stability of operational amplifier is guaranteed. the thesis uses the miller compensate technology with a adjusting zero resistance to compensate the operational amplifier
本論文對國內外的模擬低電壓低功耗技術做了廣泛的調查研究，分析了這些技術的工作原理和優缺點，在吸收這些技術成果基礎上設計了一個1 . 5v低功耗軌至軌cmos運算放大器。在設計輸入級時，為了使輸入共模電壓范圍達到軌至軌，不是採用傳統的差動輸入結構，而是採用了nmos管和pmos管並聯的互補差動輸入對結構，並採用成比例的電流鏡技術實現了輸入級跨導的恆定;在中間增益級設計中，電流鏡負載並不是採用傳統的標準共源共柵結構，而是採用了適合在低壓工作的低壓寬擺幅共源共柵結構;在輸出級設計時，為了提高效率，採用了推挽共源級放大器作為輸出級，輸出電壓擺幅基本上達到了軌至軌;本論文改變傳統基準源基於運放的設計，採用了帶電流鏡負載的差分放大器設計了一個基準電流源，給運放提供穩定的偏置電流和偏置電壓，保證了運放的穩定性;並採用了帶調零電阻的密勒補償技術對運放進行頻率補償。 -
The main studies of this thesis have been focused on the mass transport phenomenon in the hollow fiber membrane contactor, including the development of the model of the gas diffusion through the microporous membrane, the analytical solution of the shell side mass transfer differential equation in an orderly packed parallel flow module, the calculation of the shell side flow distribution in a randomly packed module, the estimation of the influence of the random arrangement of the fibers on the shell side mass transfer, and the experiments of the absorption of co2 into water
膜接觸器是一種通過膜作為兩相之間的分離界面而實現相間傳質的雜化膜過程。本論文主要研究中空纖維膜接觸器的傳質行為，研究內容包括氣體通過微孔膜擴散模型的建立、中空纖維膜均勻分佈的平行流組件殼程傳質微分方程的解析求解、中空纖維膜不均勻分佈組件中流體分佈的數學計算、中空纖維膜不均勻分佈對殼程傳質影響的估算以及co _ 2氣體吸收實驗。 -
Error analysis and improvement method of concentration measurement of trace gas in the atmosphere by differential optical absorption spectroscopy
基於可調諧二極體激光吸收光譜學對二次諧波檢測噪聲分析研究 -
Differential optical absorption spectroscopy method for online emissions monitoring system
差分吸收光譜法在線測量排放煙氣濃度研究 -
Study on differential optical absorption spectrometry for atmospheric pollutants monitoring
差分光學吸收光譜法測量大氣污染氣體的研究 -
Using the new technique, the zero, the first and the second differential pas of some persons " blood was measured, the result shows : the new technique is more sensitive than the common pas technique. the pas of many persons " blood has absorption peak around the wavelength of 637nm and 664nm
並用導數光聲光譜技術測量了各種人血的零階，一階，二階導數，實驗表明：導數光聲光技術比普通光聲吸收光譜技術具有更高的檢測靈敏度；許多人的血液的光聲譜在637nm和664nm附近有吸收峰。 -
Dual - end differential absorption laser system and its measureme nt for the atmospheric pollution
雙端差分吸收激光雷達及其大氣污染測試 -
Co2 laser - based differential absorption lidar ( dial ) systems have been used extensively for the remote sensing measurement of molecular species in the atmosphere and trace gases, therefore, have important value in military and civilian fields
基於二氧化碳激光器的差分吸收激光雷達（ co2dial ）系統被廣泛地應用於對大氣分子種類以及微量氣體進行遙感的測量之中，具有非常重要的軍事和民用價值。 -
The results show that v5 + whose valence changes is an acceptor impurity and after heat treatment especially at 655. the phenomenon is consistent with the result of the dta ( differential thermal analysis ). the result of dta indicates that v2o5 has a phase transformation absorption peak at 655 while the signal of esr of low valence of v ion is the strongest
結果表明v離子是一種受主雜質，熱處理后，其價態產生了變化，尤其是在655熱處理時價態變化程度最明顯，與v2o5的差熱分析（ dta ）結果相吻合，差熱分析也顯示， v2o5在655存在一相變吸熱峰，此時樣品的低價態v離子的esr信號最強。
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