還原率 的英文怎麼說
中文拼音 [háiyuánlǜ]
還原率
英文
degree of reduction-
In this thesis, in order to reducing the amount of the pt catalyst, improving the electrocatalytic activity of the pt catalysts and utilization ratio of pt, the electrochemical codeposition method by cyclic voltammetry ( cv ) was used to prepare a series pt / moox / glassy carbon ( gc ) composite electrodes with high dispersibility. the composite electrode, pt / moox / gc, was characterized to study its composition and its electro chemical behavior by cv. using the xrd and sem techniques, the size and the dispersion degree of the catalyst particles were studied in presence or absence of moox in the catalyst
為了降低主催化劑pt的用量、提高pt的活性和利用率,本論文利用循環伏安法共沉積制備高分散的pt moo _ x催化劑顆粒,利用循環伏安電化學表徵、 xrd和sem技術研究了引入moo _ x后的催化劑即pt moo _ x顆粒的粒子大小、分散狀態;利用icp - aes定量分析pt moo _ x催化劑顆粒的組成含量;並藉助于電化學方法分別評價了pt moo _ x gc電極催化劑的對甲醇的電催化活性和穩定性、氧還原電催化活性。( 4 ) tc is difficult to be desorbed when preequlibrated water is used as desorption solvent under aerobic and anaerobic conditions. under anaerobic condition, the desorption rate of tc rises with the increase of hach concentration it appears that the tc sorption process is dominated by oxidation - reduction mechanism
( 4 )在大氣和低氧條件下,以預平衡水做解吸劑時, tc難于解吸下來,隨著h2o2濃度的增大,解吸率升高,得出tc在花崗巖上的吸附為不可逆的氧化還原吸附機理。The results showed that the cucumber seeds soaked with extracts of total alkaloid, dissoluble alkaloid and fat - soluble alkaloid from p. multisectum ( maxim. ) bobr., the activities of amylase, protease and lipase during seed germination were inhibited, the seed vigor and germination rate were suppressed, and respiration rate of seedling was slackened ; root activity, chlorophyll content and activities of nitrate reductase, superoxide dismutase sod ) and peroxidase ( pod ) of cucumber seedlings during seedlings growth were increased
結果表明,多裂駱駝蓬總生物堿提取液、水溶性生物堿提取液和脂溶性生物堿提取液浸種均抑制黃瓜種子萌發過程中澱粉酶、蛋白酶和脂肪酶活性,種子活力和萌發速率降低,呼吸速率減慢;幼苗生長過程中根系活力、硝酸還原酶活性升高,葉綠素含量增加,超氧化物歧化酶( sod )和過氧化物酶( pod )活性提高。The formation of new phase such as mullite and gahnite by solid - phase reaction in multiphase materials can benefit the sintering of materials at 1700, decreased apparent porosity to less than 5 %. reducing atmosphere inhibited the synthesis of mullite and gahnite, played a negative role in the densification of multiphase materials
固相反應生成的鋅鋁尖晶石和莫來石具有較高的活性,使復相材料在1700燒后顯示出更好的燒結性能,其顯氣孔率降低到5以下;還原性氣氛阻礙了莫來石和鋅鋁尖晶石的生成,不利於復相材料的燒結和緻密化。The disquisition includes choice of algorithm, accomplish of algorithm, collection of learning sample, parameter of net, shortcoming of bp algorithm, extraction and reduction form line etc. referring to shortcoming of traditional bp algorithm, a modified learning factor with adaptation is introduced. because of every different font has robust, the way based chain coded and knaggy feature is used. a bizarre sample feature database is constructed for speeding up modified bp learning and classification
本文對人工神經網路理論進行了研究,探討了網路形式及演算法的選擇、演算法的實現、學習樣本的收集、網路參數選擇、 bp演算法缺陷、表格線提取、還原、生成及字元識別、還原生成等問題,並針對bp演算法的缺陷提出了和實現了改進型bp演算法,使網路學習效率提高,對不同人的不同字型字體有較強的魯棒性,採用了基於鏈碼特徵和凹凸分佈特徵的方法來抽取字元特徵。Code this control code of the recording s bit inside of the 16 the instruction to tell to put in the hdcd in the cd hdcd in the phonograph solution code, is central plains the number this of the high of that short restores out. like this, hdcd can in the cd of 44. 1 orotund number that khzs sampling frequency extreme limit inside, exceed the bandwidth 20 khzs re - appeared out
在hdcd編碼錄音的第16bit中的這個控制代碼指令告訴放在cd唱機中的hdcd解碼器,把訊號中原本的那個短促的陡高音還原出來。這樣, hdcd就能夠在cd的44 . 1khz的取樣頻率極限內,把頻寬超過20khz的聲音訊號重現出來了。Flumiclora - pentyl was prepared from p - fluorophenol as starting material via several steps such as chlorination, nitrification, reduction and condensation. the yield of the product was 50 %, and the purity was higher than 97 %
摘要以對氟苯酚為原料,首先與氯氣發生反應,生成2 -氟4 -氯苯酚,再經過硝化、還原、縮合等幾步反應得到氟胺草酯,反應總收率達到50 % ,產品純度大於97 % 。The correlation between the reducing sugar content in phloem and xylem and the ratio of damaged trees was not close
不同楊樹品系韌皮部和木質部的還原糖含量與被害株率沒有相關性。The nitration and reduction of piperonal in different experiment conditions were investigated. thus, the high yield of medical intermediate 6 - aminopiperonal is obtained
以胡椒醛為原料,用不同的實驗條件探索胡椒醛的硝化和還原,從而得出產率高標題化合物的醫藥中間體Results the conjugation rate, high molecular conjugate content of and the antibody titer induced with pneumococcus type 1 conjugate vaccine prepared by cyanogen bromide activation were significantly higher than that by amine reduction
結果採用溴化氰活化法制備的結合物,較胺還原法具有較高的結合率及高分子結合物含量,免疫小鼠產生的抗體效價較胺還原法明顯提高。After saccharifying the residue of bran koji vinegar through multiple strain culture fermentation, the reducing sugar yield of the saccharified vinegar residue was as high as 27. 2 %
摘要經過多菌種發酵糖化麩曲醋渣后,糖化醋渣的還原糖生成率達到27 . 2 % 。Abstract : it is proposed that the sturdiness of silicic acid congealed gel is a key factor to make the reaction of producing “ " lead trees ” successful. the better conditions of preparing silicic acid congealed gel are detemined. the success rate of this oxidation - reduction equilibrium is raised by 90 %
文摘:提出了生成「鉛樹」反應成功的關鍵是硅酸凝膠的堅固性,找到了較好的硅酸凝膠的制備條件,使該氧化還原平衡移動的反應成功率提高了90以上Results : it was showed that the vessel loop deformity was increased, with prolonged vessel loop, narrowed vessel, slowed blood flow and increased erythrocyte aggregation in the patieats compared with the control
結果:中風組血流變的還原粘度、全血粘度的低切變率,中風組甲襞微循環管袢形態與對照組比較,差異顯著。Increased ratio of reducing sugar to soluble nitrogen is associated with genetic resistance of peas to acyrthosiphom pisum.
還原糖與可溶氮比率的增加同豌豆蚜蟲的遺傳抗性有關。And the kinetic parameters of mn ( iii ) / mn ( ii ) redox process were calculated to be ks = 1. 771 10 - 4cm ? s - 1, io = 4. 801ma ? cm - 2 and = 0. 234. the value of ks is sufficient to warrant further study to improve the reaction rate and to assess the feasibility of this couple as positive half - cell in a redox - cell system
Mn ( ) / mn ( )體系在鉑盤電極上的標準速率常數ks的值說明可進一步研究來提高其反應速率,從而將mn ( ) / mn ( )電對作氧化還原液流電池的正極材料。Because of the limitation of experimental conditions we failed to form foam lead grid in the experiment. copper draw net is used as anode grid and it can improve to some extent the utilization of pam. due to human errors in the experiment we have not used the same discharge current density
在實驗中我們試圖通過鑄造法、電鍍法和還原法等一系列的實驗辦法製作泡沫鉛板柵,由於實驗條件的限制,沒能夠成功制得泡沫鉛,而在使用銅拉網作為正極板柵的時候,能夠使電池的正極活性物質利用率有提高,但由於實驗時候的失誤,沒能夠使用相同的放電電流密度進行放電,我們無法利用實驗數據比較出具體能提高的數字。An arithmetic device with low power consumption includes master latches, a dynamic range detection unit, slave latches, an operation unit, and a word - length restoration unit
一種低功率消耗的算術裝置,其利用輸入主級閂、動態?圍偵測單元、控制轉換仆級閂、運算單元、位元數還原單元以構成。Major products : water quality testing monitoring instrument : ph meter, conductivity meter, tds meters, orp meter ; pna meter, salt meter ; rotary speed measurement of the machinery manufacturing equipment : many functions tachometer ; air quality testing instrument : thermometer, hygrometer ; others : refractometer, water pump
主要產品:水質檢測監控儀: ph酸度計ec電導率儀tds計orp氧化還原計鈉度計鹽度計機械製造設備轉速測量:多功能轉速表光電轉速表空氣質量檢測儀:數字溫度計溫濕度表光學檢測儀器:折射儀以及污水潛水泵。This paper introduces the methods for the treatment of the amd, sums up the mechanism and the influencing factors of srb ( sulfate - reducing bacteria ) in treating the amd, and probes into how to improve the treatment efficiency
介紹了煤礦酸性廢水( amd )治理的方法,重點總結了硫酸鹽還原菌( srb )處理酸性廢水的機理及其影響因素,探討了如何提高廢水處理效率。Some experts and scholars have discussed areas between city and countryside, but no one divided the idiographic boundary about it. second, as defined factors of rank and grade, it chose the factors affecting the city and countryside. finally, at the ways of evaluating land price, it spread the using scope of the profit, cost, and rating of reduction in the method of income reduction and the exploitation expenses of the land, the tax in the method of cost approach
在此之前,雖然有關專家和學者已對城鄉結合部作了不少論述,但均未曾劃分出具體界線;其次,確定定級因素時,選擇了對城市和鄉村均有影響的定級因素;最後,在土地估價方法中,拓寬了收益還原法中的土地總收益、總費用、還原率以及成本逼近法中的土地開發費、稅費等參數的應用范圍。分享友人