溶液流速 的英文怎麼說
中文拼音 [róngyèliúsù]
溶液流速
英文
solution flow rate- 溶 : 動詞(溶化; 溶解) dissolve
- 液 : 名詞(液體) liquid; fluid; juice
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 速 : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
- 溶液 : solution; liquor; scald; aqua
- 流速 : [機械工程] velocity of flow; strength; [水文] current velocity; current speed; flow rate流速管 pi...
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( i ) in the procession of preparing na2feo4 by electrolyzing and oxidizing anodic iron in the high concentration solution of naoh, the current efficiency is directly proportional to both of the temperature and the alkaline concentration of the anolyte, and the growth rate of the na2feo4 concentration of anolyte is directly proportional to both of the electrolyzing speed and the alkaline concentration of anolyte.,
主要結論如下: ( 1 )在濃naoh溶液中直流電解氧化鐵陽極生成na _ 2feo _ 4溶液的過程中,電解液溫度、陽極液堿濃度與電流效率成正函數關系;電解速度、陽極液堿濃度與陽極液中na _ 2feo _ 4濃度的增長速度成正函數關系。For electrodeposition by dc methods, the metals deposite uninterrupted and the particles were also embeded uninterrupted into the coatings ; for electrodeposition by pc method, the particles with biggish volume were desorbed from the coatings and returned to the electrolyte again owing to the presence of pulse interval ; for electrodeposition by prc method, the particles carried positive charges are much more easy to desorb from the coatings owing to the effecf of reverse pulse current combined with pulse interval, in addition, the reverse pulse current also could dissovle the metals, further accelerates the desorption of particles, thus the particles size embeded in the coatings by prc method is the least
直流電沉積時,基質金屬的沉積連續進行,粒子在電極表面不間斷嵌入鍍層;單脈沖電沉積由於脈沖間歇的存在使得具有較大體積的粒子會脫附,重新回到溶液中;採用周期換向脈沖時,反向脈沖電流使表面荷正電的較大的粒子更易從電極表面脫附,同時,反向脈沖電流對基質金屬的溶解作用,也會促進粒子的脫附,因此鍍層中復合粒子尺寸最小。隨著鍍層中粒子復合量的增加,三種鍍層的晶粒都明顯細化,說明al _ 2o _ 3的存在阻止了晶粒的長大,提高了電沉積過程中晶核的形成速率。The method of obtaining high concentration of na2feo4 solution by quick electrolysis mainly contains four aspects : adoption of either a diaphragm or an ionic membrane electrolytic cell in which a thin anodic cell lying between the two cathodes, ( 2 ) using an iron anode that has larger specific surface area, ( 3 ) keeping suitable concentration of naoh in the anodic cell, adoption of lower current density and higher electrolyzing speed. the practical technique parameters follow a s below : the naoh solution of 14 - 16mol / l, the temperature of 303 - 308k, the surface anodic current density of 300a / m2, the unit electrolyzing speed of efficiency larger than 6. 0a / l
快速電解獲取高濃度na _ 2feo _ 4溶液的方法,主要包括四個方面:採用兩陰極室夾一厚度較小的陽極室的隔膜(或離子膜)電解槽;使用比表面積較大的鐵網陽極;保持陽極室中有適宜濃度的濃naoh溶液;採用較低的電流密度和較高的電解速度。具體工藝參數是: 14 16mol / lnaoh溶液、溫度303 308k 、表觀陽極電流密度300a m ~ 2 、有效單位電解速度6 . 0a / l 。Changes of the longitudinal and transversal wave velocities in different directions and the rock velocity anisotropy as a function of confining pressure have been studied under laboratory ultrasonic frequency for shale and sandstone with marked foliation, which had been saturated by the fluids with different viscosity kerosene and vacuum pump oil and salinity distilled water, 50000
利用不同黏度煤油和真空泵油不同礦化度蒸餾水50mg l和150mg l的nacl溶液的流體對頁巖和具有明顯層理的砂巖進行飽和,在實驗室超聲頻率下研究樣品不同方向縱橫波速度以及各向異性參數With gelatin liquor as adhesive and wheat meal as granulation material, the effects on spray granule ' s strength of fluidizing gas velocity, bed temperature, nozzle air pressure and adhesive concentration were studied experimentally in a batch conical fluidized bed spray particle generator
本文在一間歇錐形流化床噴霧造粒器中,以食用小麥澱粉為原料,以明膠的水溶液為粘結劑,實驗研究了流化氣速、床層溫度、噴嘴霧化空氣壓力、粘結劑濃度對噴霧造粒顆粒強度的影響。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。Wide - spectrum sterilizing effects. can be widely used for the sterilizing of home, hospital, restaurant, hotel., foodstuff processing, beauty and hairdressing as well as the cleaning of color stains and white clothes
本品為次氯酸鈉溶液與特殊表面活性劑復配而成,具有殺毒及洗滌作用,能迅速殺滅肝炎流感等多種傳染病毒,具有快速高效廣譜的殺菌效果,可廣泛用於家庭賓館飯店醫院食品加工美容美發等用具的消毒和有色污漬白色衣物的漂洗。A method of rapid determination of manganese in gasoline by fia with microemulsion improving solubility
微乳液增溶流動注射分析法快速測定汽油中的錳As for the method of preparing solid potassium ferrate from electrolytic synthesis of sodium ferrate solution, it is compared that the effects of the main procession facts of electrolysis upon both the anodic current efficiency and the relative concentration of na2feo4. one method was put forward to obtain high concentration of na2pe04 in the high concentration of alkaline by quick electrolyzing iron anode
針對由電解法合成na _ 2feo _ 4溶液進而制備固態k _ 2feo _ 4的方法,通過比較研究電解過程中主要工藝因素對陽極電流效率和相應na _ 2feo _ 4濃度的影響,提出了在濃堿液中快速電解鐵源陽極獲取高濃度na _ 2feo _ 4溶液的方法。In the paper quantitative analysis is done by high performance liquid chromatography to crude anthracene and the separated products, and the hplc conditions : inspected wavelengh : 254nm ; flow velocity : lml / g ; the volume ratio of the methanol / water solution : 81 / 19 ; and inspected temperature : room temperature
本文用高效液相色譜法( hplc )對粗蒽及分離以後的產物進行了定量分析, hplc的分析條件為:檢測波長: 254nm ;甲醇水溶液的體積比81 19 ;流速: 1ml g ;檢測溫度:室溫。Electrospinning origins from that electrically charged fluid is forced jets in the high voltage electrostatic field. electrospinning occurs when the electrical forces at the surface of a polymer solution or melt overcome the surface tension and cause an electrically charged jet to be ejected. when the jet dries or solidified, an electrically charged fiber remains
電紡絲技術是基於高壓靜電場下導電流體產生高速噴射的原理發展而來,其基本過程是:聚合物溶液或熔體在幾千至幾萬伏的高壓靜電場下克服表面張力而產生帶電噴射流,溶液或熔體射流在噴射過程中乾燥、固化,並保持一定電荷量,最終落在接收裝置上形成纖維氈或其它形狀的纖維結構物。After finished the cyclic voltammetry experiments, the results showed that iron steel grid can act as good current collector in the aqueous electrolyte. while the scan rate was fall in the range of 0. 5 - 4. 0mv / s, electrochemical reaction of the lithium insertion / extraction in the solid phase was kinetically limited by the diffusion of lithium ions. after 40 cycles in aqueous electrolyte the discharge capacities of sample of s13 reached 77mah / g, and showed good cycle performance
在水溶液中不銹鋼網可以作為電極的集流體,在0 . 5 - 4 . 0mv / s的掃描速度范圍內,鋰離子在尖晶石鋰錳氧化物的嵌入和脫嵌的電化學反應在動力學上是受鋰離子在固相中的擴散所控制,充放電實驗顯示樣品s13在水電解液中經過40個循環后達到77mah / g的放電容量,具有很好的循環穩定性。Based on the dc diffusion model, we build a duplex diffusion layer model which is composed of inner pulse diffusion layer and outer stable diffusion layer. in inner pulse diffusion layer, the concentration of ions fluctuates with frequency of pulse current ; in outer stable diffusion layer, the transport speed of ions is almost stable all the time, the main purpose is to transport the ions from the mass to the pulse diffusion layer
在直流電沉積的擴散理論基礎上,建立了脈沖電沉積的雙擴散層模型,靠近電極為脈沖擴散層,擴散層內金屬離子的濃度隨脈沖電流的頻率而波動;脈沖擴散層外麵包圍著一層穩態擴散層,其中離子的擴散速度在整個過程中基本是穩定的,作用是將主體溶液中的離子不斷向脈沖擴散層中補充。The effectiveness of a membrane mass exchanger increases with the increase in the so solute mass transfer coefficient, ultrafiltration flux and dialysate flow rate, as well as with the decrease in the retentate flow rate
薄膜質量交換器之效率隨溶質質傳系數、超過濾濾速、及透析液流量之增加,或隨保留液流量之降低而增加。We first expand the nonlinear temperature - dependent convective and radiative heat transfer coefficient about the ambient temperature by taylor - series method, and then the crystal temperature and the pull rate as well as the bulk melt temperature are determined by the perturbation techniques in a simply analytical manner
分析之過程為首先將隨溫度變化之對流系數及輻射系數做泰勒級數展閉,再以攝動理論之技巧,同時求解晶圓棒之溫度、拉伸速度及溶解液之溫度。In air - water system, the influence of gas superficial velocity on hydrodynamic parameters and volumetric mass transfer coefficient ( k, a ) is investigated. in order to simulate microorganism, a series doses of solid particle are added into water. in such an air - water - solid particle system, the influence of solid concentration on hydrodynamic parameters and volumetric mass transfer coefficient are studied
在空氣-水體系研究了表觀氣速對流體動力學參數和傳質動力學參數的影響;以固體顆粒模擬生物相、以柔性填料模擬生物填料床在空氣-水-固體顆粒和空氣-水-填料體系中研究固含率對流體動力學參數和傳質動力學參數的影響;以cmc溶液模擬實際操作中的液相介質研究液相粘度對上述參數的影響; 4In this paper, an experimental investigation of the removal of volatile organic compounds ( voc ) from dilute aqueous solutions was presented by vacuum membrane distillation ( vmd ). experiments were carried out using aqueous mixtures of ethanol with hollow fiber module. the influences of operating variables such as feed concentration, flow rate, temperature and downstream pressure on the flux and separation factor were investigated
本文對膜蒸餾脫除水溶液中的揮發性有機化合物( voc )進行了試驗研究;文中以乙醇水溶液為研究對象,採用真空膜蒸餾法,膜材料為中空纖維膜,研究膜通量及分離因子與原料液的溫度、濃度、流速,冷側壓力的關系,並對真空膜蒸餾的傳熱傳質機理進行了初步探討。A low detonation velocity explosive with medium density ( lg / cm3 ) and proper power ( > 320ml ). which made from obsolete propellant by controlling the granularity and adding the inhibitor, is studied in this thesis ; the distribution of water in the powdery propellant is described, the effect of detonation velocity from different granularity of powdery propellant is studied and the simulated mathematical model on leakage of water in low detonation velocity explosive is also showed furthermore, the method involved in controlling the leak of water in explosive is provided. meanwhile the effect of inhibitor is experimented some of formulations and processes of low detonation velocity explosive are given in details
廢棄發射藥可直接用來製造凝膠炸藥,在發射藥顆粒的空隙中加入氧化劑和高分子的混合溶液,經過一段時間后氧化劑溶液變成凝膠狀態即可制得灌注炸藥,該灌注炸藥具有密度較高( 1 . 4g / cm ~ 3 ) 、抗水、爆速較高的特點;文中對灌注液所涉及的材料、工藝流程進行了研究;分析了灌注炸藥的力學性能;利用灌注炸藥的高爆速及發射藥的低爆速組成一定形狀可用來形成特殊的爆轟波,利用matlab程序設計出了平面波發生器並對影響因素進行了討論。分享友人