正反應常數 的英文怎麼說
中文拼音 [zhēngfǎnyīngchángshǔ]
正反應常數
英文
forward rate constant-
The important meaning in which this direction studied has lain in establishing the connection between the material science of concrete and civil engineering, analyse the strength in terms of material microcosmic or the mesoscopic, have important meaning to understanding, know the essential law of the strength of concrete. this text divides six chapters altogether. chapter one reviewed the pore structure in nowadays domestic and international research current situation, including the concrete examines research, research of the pore structure model and the research current situations of pore structure and strength relation of the pore method, have introduced some most important achievements of structure research of pore ; chapter two narrated much yardstick of the material mesoscopic structure of concrete and principle of examining pore technology of material of concrete, and the commonly used sign parameter in discussedding the pore and material pore of quito of cement and analyse, have explained that the influence factor of mip to the result of study of pore, has pointed out the limitation in mip in the pore structure ; analyse porosity and strength relation development course of model emphatically, and has carried on comparative analysis to the existing model, has pointed out the weak point of the original model ; on the basis of " ing integrate synthetically ", propose concrete pore structure compound body model and pore physical model of systemlex body ; chapter five carried on the corresponding test data to compares to the model parameter appearing in model of chapter four with and analyses, have received k value of the characteristic of strength of matrices of reflecting according to the method to return to analysis, and calculate the influence produced on the strength of concrete in revision that can probed into the content of cement, elastic mould and surface energy, exactness of the inspection model ; chapter six is the conclusion, according to studying the survey this text to some research conclusions of the pore structure and making corresponding prospect to the structure development of pore
第一章回顧了孔結構在當今國內外的研究現狀，包括混凝土測孔方法的研究、孔結構模型的研究及孔結構與強度關系的研究現狀，介紹了孔結構研究方面的一些最重要的成果；第二章敘述了混凝土材料細觀結構的多尺度性及混凝土材料測孔技術的原理，並討論了水泥基多孔材料孔隙分析中常用的表徵參數，也說明了壓汞法測孔對研究結果的影響因素，指出了壓汞法在孔結構研究中的局限性；第三章是著重分析了孔隙率與強度關系模型的發展歷程，並對已有的模型進行了比較分析，指出了原有模型的不足之處；第四章在「綜合集成」的基礎上，提出了混凝土孔結構復合體模型和孔系統的物理模型，並模擬了該模型下由各單體並聯形成的復合體的斷裂過程，最後根據所建模型編制了相應的計算程序，可根據輸入的孔徑分佈與水泥含量等參數，實現混凝土理論強度的計算；第五章對第四章模型中出現的模型參數進行了相應的試驗數據對比分析，根據回歸分析的方法得到了反映基體強度特徵的k值，並從理論上探討了水泥含量、彈性模量和表面能的修正對混凝土強度計算產生的影響，檢驗模型的正確性；第六章是結論與展望，根據研究綜述了本文對孔結構的一些研究結論並對孔結構發展作了相應的展望。Therefore, sequential research on chf is necessary. when in accidental conditions of nuclear reactor, the mass flux of coolant is very low. in such condition, the steam quality is high, and the mechanism of chf is mainly controlled by bulk flow, whereas microcosmic parameters near the chf area are affected by the flow conditions in whole tube which called " upstream memory effect "
在反應堆事故工況下，冷卻劑流量很低，含汽量很高，其臨界機制與正常運行工況下的臨界機制有所不同，不僅是一種主流控制臨界工況，更由於其局部的各微觀參數受上游流道的累積效果的影響而存在上游記憶效應。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。Ion objective : to investigate effect of nd : yag laser irradiating root canals on periapical tissue. methods : three minipigs were used in this study, deciduous premolars were opened, pulps were extracted, root canals were enlarged, then irradiated with nd : yag laser 30s and filled conventionally. the changes of periapical tissue were observed after 1, 3, 7 and 15 days. results : after one day, periapical tissue showed enlargement and engorgement of blood vessel and a few of leukocyte, the changes were more serious than in control. after 3 and 7 days, there were minor reactions in periapical tissue and same as the control group. after 15 days, periapical membrance in most specimens was normal. slight inflammatory reaction was found in the test group as same as in control group. conclusion : there was little damage to periapical tissue with the laser irradiation
目的:觀察激光在根管內照射后對根尖周組織的作用.方法:選3隻小型豬，全麻下將乳前磨牙開髓、抽髓，根管擴大后，激光照射30秒，做常規根管充填.對照組為常規根管充填. 1天、 3天、 7天和15天後觀察根尖周組織的變化.結果:激光照射后1天，根周膜血管充血、輕度炎癥，對照組只有根尖周膜充血.激光組組織反應比對照組稍重.激光照射后3天和7天，少數病例根周組織有輕度的刺激與對照組的病理表現相近.激光照射后15天部分標本根周膜正常，部分標本有輕度炎癥反應，與對照組結果基本相似.結論:本激光照射條件對根尖周組織沒有明顯損傷作用，可供臨床應用時參考The present studies aimed to find the responses of neurons and glias in the target and other brain areas of the linear accelerator - irradiated rats. in the first experiment, time - dependent neurons changes in the brain after hemispheric irradiation at an single - fraction maximal dose of 20 gy were observed by investigating the expression of an immediate early gene, fos protein. the results shown : compared with that of the un - radiated rats, the expression of fos protein in the irradiated brain decreased distinctly 24 hours and 1 week after irradiation
首先，利用即刻早期基因fos的表達，做了同一照射劑量（ 20gy ）照射大鼠半腦后不同存活期間（ 1d ， 7d ， 14d ， 2ld ， 28d ）大鼠全腦神經元動態變化的觀察，發現：受照射后1d 、 7d大鼠腦內各部位fos蛋白表達均明顯減少，隨著時間的延長，其fos免疫反應性細胞數量逐漸增加，照射后28d ，延髓、第四軍醫大學碩士學位論文腦橋內hs免疫陽性細胞數量恢復並超過正常對照組水平，但中腦、間腦及端腦內未恢復到正常對照組水平。The minority of those who display only positive manifestations frequently function quite well ? holding jobs, having families and suffering relatively little cognitive decline over time ? if they stick with their medicines
少數只表現正性癥狀的患者通常對治療的反應也相當好，只要持續用藥，他們可以工作、成家，認知能力逐漸下滑的程度也有限。Some significant results were obtained. 4. on the basis of statistical analysis, effect coefficients of the platform values and the characteristic periods for three kinds of soil layer construction were obtained by comparing them with those of norm profiles 5
將不同土層結構的計算結果，按不同地震動輸入和場地類別分組統計，然後與其對應的不含軟夾層的正常剖面的計算結果進行比較，統計得到不同土層結構對反應譜平臺值和特徵周期的影響系數。The random mathematical model is described using equivalent markov equations. the time and state parameters are discrete. based on the model, the flow rate distributions along radial and average at any height can be calculated directly, moreover, the probability transition matrix of the flow can be determined via the statistic character of the random cumulate particles, and be corrected by s. cd the random theoretical model shown in fig. l, the section of the bed of tbr is divided into a series of concentric circles
一、在常溫和常壓下進行滴流床反應器流率分佈的研究，以狀態離散、時間離散的齊次markov過程描述了滴流床在滴流區的流率分佈，建立了滴流床在滴流區流率分佈的隨機模型，根據此模型可以： 1 、可直接確定任一高度下的液體徑向流率分佈及平衡流率分佈； 2 、液體流動的概率轉移矩陣可由隨機堆積顆粒的統計特性確定，以參數s修正。The main results are as follows : 1. dynamical behavior in coupled map lattices with regular topology are investigated by using lyapunov componet. 2. dynamical behavior in coupled map lattice with scale - free topology are investigated in detail. our strategy is to apply three feedback control methods, including constant feedback and two types of time - delayed feedback, to a small fraction of network nodes to reach desired synchronous state
本論文正是對具有無標度拓撲結構的耦合映象格子的動力學行為進行了研究，主要內容和創新點如下: 1 .利用lyapunov指數對具有規則網路結構的耦合映象格子系統的動力學行為進行研究; 2 .對具有無標度網路結構的耦合映象格子系統的動力學行為進行了詳細研究;為了使系統達到同步，我們的策略是應用三種反饋方法（常數反饋和兩種時延反饋）對系統的部分節點進行控制以達到我們期望的狀態。On the other hand, quite a number of practical systems with numerous dimensions may have some fast variables taking on singular impulse characteristic, such as electric power system, control system of rolling mill assembly, biochemical process, nuclear reactor, control system of airplane and rocket, and chemical diffused reaction, etc. so, it is important to study the problem of robust control of singular system i n the domain of control theory
一般這些不確定性並非不可度量的，通常能給出這些不確定性大小的某種約束，魯棒控制理論正是處理系統模型具有不確定性的有效方法。另一方面，在大多數維數很大的實際系統中，都有呈現奇異攝動特性的快變變量，如電力系統，冷軋機的工業控制系統，生物化學過程，核反應堆，飛機和火箭系統，以及化學擴散反應等。And use relative fitting error to measure statistical data non - uniform error ; then introduce the method systematically of using the fuzzy comprehensive evaluation method to carry on the overall superior test of the government statistical data quality. includes the establishment of step level appraisal target system, target weight determination, calculates the factor weight in various levels, uniform test of judgment matrix, and built up the final fuzzy comprehensive evaluation model of the government statistical data quality according to the above - mentioned standard ; finally selects the partial main social economy total quantity target from chinese statistics yearbook 2003 to carry on the real diagnosis analysis : ( 1 ) confirm these social economy total quantity targets using the description statistics and the k - s inspection method to obey the lognormal normal distribution. ( 2 ) according to the two levels of inspection methods which this article proposed to carry on accuracy and the overall superior test for these social economy total quantity targets
本文首先從統計數據及質量的涵義出發，全面系統的介紹了統計數據質量的概念;其次，從研究統計數據的分佈規律入手，對統計數據準確性檢驗問題進行了探討，利用對數正態分佈檢驗對反映研究對象規模大小的統計數據的質量及異常數據進行定量檢查和識別，並利用相對擬合誤差計量統計數據的非一致性誤差;接著系統介紹了利用模糊綜合評價方法對政府統計數據質量進行整體優度檢驗的思路，具體包括建立遞階層次的評價指標體系，指標權重的確定，計算各層次中因素的權重，判斷矩陣的一致性檢驗，並根據上述標準建立了最終的政府統計數據質量模糊綜合評價模型;然後通過從2003年中國統計年鑒資料中選取部分主要的社會經濟總量指標進行實證分析: （ 1 ）利用描述統計和k - s檢驗法來驗證這些社會經濟總量指標服從對數正態分佈的規律; （ 2 ）按照本文提出的二級檢驗法來對這些社會經濟總量指標進行準確性和整體優度檢驗，從而達到綜合評價政府統計數據質量的目的;最後對這種二級檢驗法的優點和不足進行小結，提出今後應該努力改進的方向。The infrared results showed that the ir characteristic value l080cm - lof cubic crystal sio, and the absorption peak 460cm - l of mgf, caused by the interaction between f - - mg ' + - p elastic vibration and photon radiation, appeared in the ir spectra. ellipsometric analysis showed that the typical absorption peaks 58lnm, 589nm and 606nm, resulting from the surface plasma resonance of cu panicles and reflecting the absorption on composite film system, appeared in the extinction coefficient k curves of cu ( voll5 % ) mgf, cu ( vol20 % ) mgf, and cu ( vol30 % ) mgf, cermet films, respectively. with the component of cu increasing, the peak site presented red shift, which was in accordance to the results of ultraviolet - visible spectra
橢偏測試分析表明： cu （ vol15 ） mgf _ 2 、 cu （ vol20 ） mgf _ 2和cu （ vol30 ） mgf _ 2樣品的消光系數k曲線中出現了反映復合金屬陶瓷體系吸收的由cu金屬顆粒表面等離子體共振引起的吸收峰，峰位分別為581nm 、 589nm和606nm ，呈現紅移，這些與紫外-可見光譜測試結果相一致；此外， cu - mgf _ 2復合納米金屬陶瓷薄膜光學常數的實驗值與考慮尺寸效應修正過的mg理論值總體上符合得很好。Extension of yoshizawa periodic solution theorem is mentioned in the third part. nonautonomous three species predator - prey delay diffusion system with michaelis - menten response function is studied. we obtain not only existence of periodic solution of the system, but also sufficient condition of positive periodic solution
由於許許多多現實問題往往都可歸結為尋求以微分方程（常微分方程、泛函微分方程）為數學模型的周期解、概周期解，因此本文在第三部分運用yoshizawa型周期解定理的推廣，研究了以下具有michaelis ? menten型反應函數的非自治三種群時滯擴散捕食系統的周期解的存在性，給出存在正周期解的充分性條件。It is approved that the deficiency level keeps relatively the lowest and the dielectric constant however shows the highest, if the contents of mn3 + and la3 + are comparatively the same. on the contrary, the dielectric constant decreases with increasing the contents difference of mn3 + and la3 + ions. the effect of overlap appeared when the dielectric loss was aroused due to the activation of positive and negative carries at certain temperature, which brought abnormally high dielectric loss
證實了材料在mn ~ （ 3 + ）含量與la ~ （ 3 + ）含量相當時體系中產生的缺陷相對最少，其介電常數最大，反之隨兩者含量偏差的增大而下降；材料中由正負兩種局域載流子在一定溫度下激活過程中產生的損耗出現了迭加效應，給出了異常的高損耗值;材料中隨著mn摻量的增大，體系提供的3d電子數增多，電子輸運通道改善，導電性提高。But it was, as those working in the foreign exchange market often tell us, one of those psychological levels that might trigger unusual market reaction, not just in the forward exchange rate of the renminbi, but also in the spot and forward exchange rates of the currencies of jurisdictions having a close economic relationship with the mainland, notably the hong kong dollar
8除了是個整數，並與發字諧音之外，本身沒有甚麼特別意義。但正如外匯市場人士經常說，八算是其中一個可能觸發市場異常反應的心理關口，而且不單人民幣本身的遠期匯率如此，就連與內地經濟關系密切的地區的貨幣其中當然包括港元的現貨及遠期匯率也會受到影響。( 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。With anti - t - jgy establishing a radioimmunoassay, the quality of anti - t4 igy was appraised : litres was 1 : 25 00, permitting rang of litres in the ria was from 1 : 2500 to 1 : 5000 ; the degree of cross reactivities with ta was 1. 28 % ; affinity constants was 2. 13 x 109l / mol
本文應用蛋黃正丁醇去脂獲得的抗t4 igy建立了放免檢測方法，對抗t4igy的質量進行鑒定：抗體滴度為1 ： 2500 ，工作濃度在1 ： 2500至1 ： 5000范圍內；與t3的交叉反應為1 28 ；親和常數為2 13x109l m 。On the basi s of these results, time - dependent glias changes in the brain were observed with the same model by investigating the expression of s - 100 protein, a specific marker for glias, mainly for astrocytes. our results shown : compared with those of the unradiated rats, the number of s - 100 protein immunoreactive positive glial cells in the brains of the irradiated rats increased gradually. more s - 100 - positive glial cells with multiple long processes and hypertrophic cell bodies were also observed in these areas
在此基礎上，又做了同一照射劑量（ 20gy ）照射大鼠半腦后不同存活期間（ id ， 7d ； 14d ， zld ， 28d ）大鼠全腦s 100動態變化的觀察，發現其規律如下：在上述時間點大鼠腦內各部位卜刁m蛋白免疫反應細胞數量進行性增加，伴有s 100免疫陽性細胞的胞體逐漸增大和交起增多，與正常對照組具有明顯的差異。Only a few patients, especially those who have received large dosage of radiation at a time, may have some side effects, such as, headache, naupathia, vomit, fever and so on. it is mostly caused by damage of capillary vessel, edema or infection due to radiation. however, the side effects just lasts a short period of time and they can disappear more quickly with the assistant of medicines such as dehydrator
少數病人特別是接受單次較大劑量照射的病人可能會出現一些副反應，如照射后幾天內出現輕度頭痛惡心嘔吐發燒等，這多半是由照射引起的毛細血管損傷水腫和炎性反應，時間短暫，一般都可自行恢復正常，適當用一些藥物如脫水劑等治療，效果更佳。This thesis makes a new digital controller with two pieces of tms320f240 dsp base on the old digital controller in our lab, the new controller have two kinds of functions. firstly, two dsp can deal with all signal together, secondly, when a dsp is damaged and does n ' t work, another dsp will immediately take actions and deal with all signal alonely. which makes the system runs in gear
經過調試，該數字控制器不僅可以實現兩dsp分擔處理傳感器信號的功能，即在兩晶元都正常工作的情況下，其中一晶元處理兩路信號，另一晶元處理餘下的三路信號；同時該設計還具有容錯功能，當其中某一晶元出現故障而不能處理信號時，另一晶元將迅速做出反應並獨立肩負起全部信號的處理任務。分享友人