酸度常數 的英文怎麼說
中文拼音 [suāndùchángshǔ]
酸度常數
英文
acidity constant-
Fourth, the electrorheoldgical fluids composed of pan / batio3 nanocomposite and chlorated paraffin oil are prepared and the relationship between dielectric performance and electrorheological effect are discussed. fifth, the advantage and disadvantage of electrorheological fluids composed of different structure pan - batio3 nanocomposite are compared, which put a favorable basis for farther design and prepare electrorheological fluid with high performance
研究結果表明:鈦酸鋇納米粉末在900處理時為最佳,隨熱處理溫度的升高,粒徑長大,而其介電常數隨著粒徑長大,逐漸降低,在相同條件下,隨溫度的升高,鈦酸鋇納米粉末的介電常數在120出現最大值。So it can be used as both sensor component and driving component. pzt have better electromechanical coupling coefficient, piezoelectric constant, mechanical quality factor, curie temperature and stability, etc. so, pzt can be used widely in smart materials and structure
與其它壓電陶瓷相比,鋯鈦酸壓電陶瓷( pzt )有較好的機電耦合系數、壓電常數、機械品質因數、居里溫度和穩定性等,因此, pzt能廣泛應用於智能材料結構中。The result showed that non - enzymatic browning of greengage juice could be inhibited and natural primrose yellow could be kept in the plasming of greengage by adding 0. 2 % ( mass fraction ) sodium erythorbate ; non - enzymatic browning of greengage juice was restrained more remarkably by vacuum concentration than by normal pressure concentration ; the non - enzymatic browning of greengage juice increased and the color darkened with the increase of concentration and processing temperature ; non - enzymatic browning of greengage juice in the storage could be inhibited under the condition of low temperature, and frozen storage was the best store method of greengage concentrated juice
摘要結果表明:在青梅果打漿時加入質量分數為0 . 2 %的異抗壞血酸鈉,可防止果汁氧化褐變而保持天然淡黃色澤;減壓濃縮較常壓濃縮明顯抑制了非酶褐變的發生;隨著果汁含量和加工溫度的提高,非酶褐變加快,色澤加深;低溫有利於青梅濃縮汁的貯藏,冷凍貯藏是最佳的貯藏條件。The measurement of activity product of thiamine nitrate
硝酸硫胺活度積常數的測定On - site measurements of parameters such as temperature, ph, turbidity and dissolved oxygen are made using the multiparameter water quality measuring probe, and recorded in the data logger. the readings obtained are then compared against the normal ranges from that station, and any unusual readings result in a second set of measurements being made to check the validity of the initial reading
另外,工作人員利用多參數水質計量儀實地量度多項水質參數,包括水溫酸鹼度混濁度及溶解氧,將測量結果記錄在數據記錄器內,再與該監測站的正常參數范圍比較,核實數據的真實性。In this article, the steel fibre is a kind of industrial wastes - stainless steel fibre dregs. the use of it is helpful in comprehensive utilization of resource and environment protection. the author of this article used orthogonal test design, arranged the test scheme scientifically, selected material, at last yield a high strength concret, whose strength exceeded c60, mainly by using 42. 5 ordinary portland cement, silica fume, superplasticizers, stainless steel fibre dregs and so on
本文所用的鋼釬維是一種工業廢料?不銹鋼纖維渣,它的應用有利於資源的綜合利用和生態環境的保護本文在廣泛閱讀國內外有關資料的基礎上,採用正交設計,科學地安排試驗方案,精心選擇材料,用42 . 5普通硅酸鹽水泥、硅灰、高效減水劑、不銹鋼纖維渣等材料,採用常規工藝配製出了強度達到c60的高強混凝土,並且通過對試驗數據的分析,給出了最優配比方案。To device a primer pairs and amplify the full length pstvd by rt - pcr, the positive rna extraction from tuber sample was used as template. the product of rt - pcr was purified and connected to the plasmid pmd 18 - t vector
Cdna核酸斑點雜交反應( nash )檢測pstvd方法準確、靈敏度高,一次檢測樣品數量多,且對于異地樣品檢測非常方便,是以往其它檢測方法的有效補充。The pure sample with spinel structure can be easily prepared by optimizing the processing parameters. the typical product is limnio4 with the cell constant a = 8. 235 and the powder size belongs to nanometer and sub - micrometer
表明用改進的檸檬酸配合法可以合成出單相正尖晶石limn _ 2o _ 4 ,其典型的試樣組成為limn _ 2o _ 4 ,晶格常數= 8 . 235 ,粒度大小為納米級。In young chickens aev induces paralysis, ataxia and muscular dystrophy, while in older chickens, infection is usually subclinical, resulting in a decline in egg production and hatchability. infectivity was shown to remain unaffected by chloroform, low ph, pepsin, trypsin and deoxyribonuclease. magnesium cations were shown to stabilise preparations of the virus against heat inactivation. the buoyant density of virions are 1. 31g / ml. the diameter of the virion was estimated to be 22 to 30nm. the aev can be adapted to grow in chicken embryo. the inability of aev to grow effeciently in most cell cultures
幼雞感染該病毒后,引起麻痹、頭頸震顫甚至共濟失調,而成雞常呈亞臨床感染或導致產蛋量和孵化率下降。病毒的感染性不受氯仿、低ph 、胃蛋白酶、胰酶和脫氧核糖核酸酶的影響,鎂離子可增強病毒對熱的穩定性,病毒的浮密度為1 . 31g ml ,直徑為22 - 30nm ,該病毒主要在雞胚中增殖,在大多數細胞培養物中不生長。Abstract : an imidazole - catalyzed acylation method of phthalic anhydride is applied to the determination of hydroxyl values of reinforcing agent is211. the analytical error is 5. 0 10 - 3. the relative standard deviation of the method is less than 0. 04 and its coefficient of variation is not more than 5. 0 10 - 3. hydroxyl values determined in different batch samples meet the design requirement completely. this method is rapid and simple, it is adaptable to conventional analysis
文摘:以咪唑催化鄰苯二甲酸酐酰化的方法測定增強劑is211的羥值,準確度高,分析誤差為5 . 0 10 - 3 ;方法精密度好,標準偏差小於0 . 4 ,變異系數不大於5 . 0 10 - 3 ,測定不同批號試樣的羥值完全符合商標值,方法快速、簡便,適用於常規分析。By means of chemical - displacement and orthogonal test method, the various technological parameters of the colorant for steel at normal temperature are determined. and simultaneously their effect regulation for steel of various state and constituent on coloring film quality are also discussed in detail. a new bronze - colored treating solution and technology for steel at normal temperature has been developed with stable and high quality performance
運用化學置換法和正交試驗法測定常溫著色液的溫度、酸度、成分、含量等參數及其對不同狀態及成分的鋼鐵色膜質量的影響規律,研製出了一種性能優良的鋼鐵常溫古銅色處理液及處理新工藝。Abstract : by means of chemical - displacement and orthogonal test method, the various technological parameters of the colorant for steel at normal temperature are determined. and simultaneously their effect regulation for steel of various state and constituent on coloring film quality are also discussed in detail. a new bronze - colored treating solution and technology for steel at normal temperature has been developed with stable and high quality performance
文摘:運用化學置換法和正交試驗法測定常溫著色液的溫度、酸度、成分、含量等參數及其對不同狀態及成分的鋼鐵色膜質量的影響規律,研製出了一種性能優良的鋼鐵常溫古銅色處理液及處理新工藝。Organic - inorganic nanocomposite, which are the complex of inorganic nanopraticles with organic compound, is a popular study subject in nanoscale composite. the nanocomposite can not only take advantage of several advantage, but also produce new properties. in this thesis, taking account of the problems in electrorheological fluids such as high leakage current, low yield stress and stability, the pan - batio3 nanocomposite with different structure are prepared by in - situ complex technology and modified sol - gel method
根據目前電流變液中出現的問題(如屈服應力不夠高,漏電流密度不夠低,穩定性不夠好等問題) ,基於聚苯胺有較高的熱穩定性,且密度又小,特別是聚苯胺的介電常數和電導率均可按需調整,此外,鈦酸鋇無機納米粒子作為一種無機鐵電體,在電場作用下具有自發極化的能力,一方面可以為體系提供高的介電常數,另一方面又可保證體系的絕緣性能。However, although prechlorination efficiently removed algae, its effect was directly related to the quantity of algae and was more obvious in the period of algae bloom. with regard to yellow river water in winter with low temperature and low turbidity, it was discovered that preozonation did not result in a substantial removal of total organic carbon ( toc ), but a remarkable uv254. it was further revealed that preozonation changed the characteristics and structure of organic matters and then enhanced removal efficiencie s of them by subsequent processes
對于夏季高藻期水質,高錳酸鉀預氧化對有機物有一定的去除能力,並能提高后續工藝出水水質;預氯化能顯著去除藻類,但后續工藝出水水質受藻類數量影響明顯,預氯化只有在高藻期才能提高后續常規處理工藝出水水質;對于冬季低溫低濁水,預臭氧化雖不能降低水中有機物濃度,但能顯著提高后續常規處理單元出水水質。The study on the kinetics of the enzyme showed that the enzymatic reaction with lactic acetate as the substrate accorded with the michaelis - menten equation. it michaelis constant km was 5. 77, and the maximum velocity was 0. 45 u mol / l min
酶動力學研究表明:該酯酶在以乳酸乙酯為底物的酶促反應符合米氏方程,米氏常數為km : 5 . 77 ,最大反應速度vmax為: 0 . 45 mol l ? min 。( 2 ) xrd analysis showed that phenolic resin molecules could insert into the interlayer of organic - montmorillonite, but there are some differences of the behavior of intercalation between thermosetting phenolic resin and thermoplastic phenolic resin. ( 3 ) the cure kinetics parameters of epoxy resin / org - mmt / deta, epoxy resin / org - mmt / toa and epoxy resin / org - mmt / mz nanocomposites were investigated by differential scanning calorimetry ( dsc ). some kinetics parameters including the reaction order and activation energy were caculated with kissinger method
( 3 ) dsc研究了環氧樹脂二乙烯三胺蒙脫土、環氧樹脂桐油酸酐蒙脫土、環氧樹脂咪唑蒙脫土固化體系在不同org - mmt配比( 0 , 5 , 10 )及不同溫度下的固化動力學,除了運用常見的kissinger和crane方法求出活化能和反應級數等動力學參數外,還嘗試了用修正的avrami方程和自催化動力學模型研究了環氧樹脂蒙脫土體系的固化動力學。Barium strontium titanate ( bst ) film has been investigated extensively for the application in the high density dynamic random access memories ( drams ). one of the most crucial electrical parameters of these films has been the leakage current level of dram cells
鈦酸鍶鋇( ba _ ( 1 - x ) sr _ xtio _ 3或bst )以其高介電常數、低損耗,介電響應快、疲勞強度大等優點,在下一代動態隨機存儲器( dram )上的應用前景非常廣闊,是近年來人們研究的熱點。While aerobic distance work should be a primary training focus, an aerobic training and speed training will improve your performance times since they enable you to function at higher intensities and to endure high lactic acid levels ( a by - product of short bursts of exercise )
有氧跑步是訓練的主要項目,有氧訓練和速度訓練將增加你的運動次數,因為他們可以使你的身體器官在更高強度運動下正常運作,並能忍受肌肉中的高乳酸(短期劇烈運動的副產品) 。分享友人