膜的分離效率 的英文怎麼說
中文拼音 [módefēnlíxiàolǜ]
膜的分離效率
英文
membrane separation efficiency- 膜 : 名詞1. [生物學] (像薄皮的組織) membrane 2. (像膜的薄皮) film; thin coating
- 的 : 4次方是 The fourth power of 2 is direction
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 離 : Ⅰ動詞1 (離開) leave; part from; be away from; separate 2 (背離) go against 3 (缺少) dispens...
- 效 : Ⅰ名詞(效果; 功用) effect; efficiency; result Ⅱ動詞1 (仿效) imitate; follow the example of 2 ...
- 率 : 率名詞(比值) rate; ratio; proportion
- 效率 : productiveness; efficiency; productivity; workpiece ratio
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It showed the effluence of composite film on the permeation rate of o2 is more obvious than that of n2 and co2. but there is no apparent effect on their separation. compare with host film, thermal - infrared radiance of composite film decreased
結果表明fe3o4 / pvdf復合膜對于o2滲透速率的影響較n2 、 co2大,但對於三者分離效果不明顯;納米fe3o4的引入使得復合膜相對于pvdf基膜,熱紅外輻射率有所降低,並具有一定的電磁波吸收能力。Poly ( vinylidene fluoride ) ( pvdf ) hollow - fiber porous membranes have excellent performances. but adsorption fouling will still be created on the hydrophobic surface when the membranes are used in aqueous solution separation systems. this can cause the decrease of the permeate flux and separation efficiency, thus the applications of the membranes are limited
聚偏氟乙烯( pvdf )中空纖維多孔膜具有優良的性能,然而由於其表面的疏水性,在用於水相體系分離時,仍會產生吸附污染,導致膜通量和分離效率下降,應用范圍受到限制。This article studies on a novel method about detector calibration and monochromator calibration by using silicon pin photodiode. the detector and the monochromator of one spectrum measurement system had been calibrated using the method, and the spectrum distribution of one laser - produced plasmas ( lpp ) source with jet gas target was measured. the use of a specific combination of the silicon photodiode and multiplayer reflect films is the notable character in monochromator calibration
本文研究了一種利用光電二極體傳遞標準探測器標定普通探測器和單色儀系統的方法,實際標定了所用的探測器和單色儀系統,測得了噴氣靶激光等離子體光源的相對光譜分佈,設計出絕對光譜分佈的測量方法,並且利用labview的g語言及相應的數據採集卡等硬體設備構造出一套智能化、高效率的測量系統,完成了多層膜反射率測量工作。The membrane properties were found to be dependent upon the content of styrene. the membrane physic - chemical properties compare to nafion 117 except that their chemical stability has to be further improved to make them acceptable for practical use in the proton exchange membrane fuel cell. the proton transport through the membrane follows the " liquid - like " proton conductivity mechanism y and the water balance is important for the working condition of the fuel cell
對磺化膜的研究分析表明:膜的性能參數如離子交換容量、吸水率、水合系數、形體穩定性、導電性能、化學與熱穩定性等依賴于膜中苯乙烯含量,且接枝苯乙烯相互間的位阻效應對膜性能影響很大;膜的性能可與nafion膜相比較;質子在膜中的傳導遵循「似液體」質子傳導機理;電滲析與擴散作用使膜保持水平衡。According the key factors we find, we bring forward a new conception : multilevel suppressor and design a new high performance suppressor whose ion - exchange membrane has bigger areas and using three electrodes including one cathode ( anode ) and two anodes ( cathode ), at the same time we fill the suppression compartment with one kind of ion exchange resin which has moderate exchange capacity. according to our experiment ' s results, we find the new type suppressor has quite high working current efficiency and suppressing capacity. in most cases, the suppressor ' s current efficiency is over 90 % ; the suppressor can transform the naoh ( concentration : 200mmol / l, flow rate : i. oml / min, conductance : over 10000 i - i s cm " ) to pure water ( conductance : 8. 9 it s cm in chapter 3, the high performance suppressor is applied in determination some trace - amounts ions in plating solution, sewage. in this chapter, we also have a research on the gradient ion chromatography
第二章首先以xyz - 1型電化學抑制柱為例,分析了電化學抑制柱的抑制過程得出影響抑制容量的主要因素主要是抑制柱的電流效率和離子交換膜的極限電流密度,因此採用中等交換能力的離子交換樹脂作為抑制室的填料以提高電流效率,在通常情況下電流效率可達到90以上;在選用同種離子交換膜的前提下,可通過增加離子交換膜的有效面積達到提高極限電流的目的從而提高抑制柱的抑制容量,因此提出了多級抑制的概念並據此研製了共電極式高容量電化學抑制柱,該抑制柱最高可將流速為1 . 0ml / min ,濃度為200mmol / l電導率超過10000 s ? cm ~ ( - 1 )氫氧化鈉溶液抑制為電導率低至8 . 9 s ? cm ~ ( - 1 )的純水,並且具有穩定性高、分析結果準確等優點。This paper presents the effects of some features on the productivity of raw c60 materials, such as distance and approaching speed of electrodes, helium partial pressure and arc current etc. then we separate and purify the raw materials and obtain pure solid c60 of 99. 9 % and compare the purification efficiency and effect of different fluxion phase and fixed phase and discuss the effects of the experimental conditions, such as the depositing speed, the type of the substrate, the surface structure of the substrate and the temperature of the substrate. finally, we use xps, afm, ultraviolet, infrared and raman to analyze the component, structure and feature of the films qualitatively and quantitatively
本文首先研究了氦氣分壓、弧電流大小、電極間距以及電極推進速度等實驗條件對制備c _ ( 60 )粗品產率的影響;接著選用柱色譜法分離提純得到了純度大於99 . 9的c _ ( 60 )固體,比較了不同流動相和固定相的提純效率和效果;然後採用自己改進后的真空鍍膜機,利用電阻式加熱蒸鍍方法,得到了純c _ ( 60 )薄膜和不同摻雜比的銀摻雜薄膜;探討了沉積速率、襯底種類、襯底表面結構以及襯底溫度等實驗條件對薄膜結構的影響;最後通過xps , afm ,紫外,紅外,拉曼對薄膜的成分、結構和特性作了定性和半定量分析。According to the current problems such as low quantum efficiency. limited available sun energy spectrum range, and inefficient recovery, resulted from the practical using of photocatalysis, using the narrowband semiconductor cds ( eg = 2. 5ev ) to compound with tio2 seems to be an effective solution. since it will not only enlarge the region of the absorption with the proper narrow band of cds but also improve the photodegradation efficiency on account of the band overlap of the two, which makes the photo induced electron and holes separate more easily
本文針對光催化技術應用中存在的tio _ 2光催化量子效率低,吸收利用太陽能光譜范圍有限,催化劑回收困難等問題,通過窄禁帶半導體cds ( e = 2 . 5ev )的復合,對納米tio _ 2進行了改性研究,一方面,由於cds的窄禁帶寬度可以擴展薄膜的光譜吸收范圍,另一方面,由於能帶的交疊,提高了光生電子和空穴的分離效率,從而提高了薄膜的光催化降解效率。The recovery can reach 95 % after it extracts once, rsd % is lower than 10 %, the detection limit of zirconium is 1. 3u. g / ml. and increasing the application of film in xrf is studied. the method of using organic sample to make resource after extracted by tta can be used to determine zirconium in simulated p rocess solution of spent fuel reprocessing quickly and veraciouly
萃取一次便可達到理想的萃取效果,回收率可達95 ,相對標準偏差10 ,鋯的檢出限為1 . 30 g / ml ,同時改進了薄膜法在x射線熒光光譜法中的應用范圍,此方法採用tta萃取分離的有機相直接制源可快速、準確地對測定purex模擬工藝料液中的鋯含量。Through the flux / retention experiments it was shown that when the applied pressure rises, both volume flux and rejection increase, too ; and that the higher the feed salt concentration, the lower rejection and volume flux. the charged mosaic membranes could permeate mono - valent and bi - valent inorganic salts, but reject the low - molecular - weight organics. furthermore, sem was used to observe the surface and the cross section of the composite membrane
另外,膜性能表徵結果顯示:隨著操作壓力的增加,膜通量及膜對電解質的截留率均趨增加;而隨著原料液濃度的增加,通量和截留率都有所降低;膜對低分子有機物和無機電解質混合體系(如:亞硝基紅鹽與naci混合體系;蔗糖與nazso ;混合體系等)的選擇性較高,能實現其有效分離。分享友人