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exothermic adj.放熱的 (=exothermal)。

exotic

This paper discussed the thermal equilibrium and critical condition in exothermic reaction system , and deduced the values of dynamic parameters such as the judging criterion for thermal runaway , the ignition temperature and extinction temperature in the critical state of thermal runaway when there is no consumption of reaction materials 摘要討論化學放熱系統的熱穩定性和臨界條件,用化學反應物無消耗的假設推導化學放熱系統熱失控(熱爆炸)時的動力學參數臨界值,得到熱失控的判據、臨界點火溫度和熄火溫度。

Noticing that strong exothermic reaction due to large negative enthalpy of mixing can occur among major components of ti - zr - based quasicrystal alloy systems and zr - based bulk amorphous alloy systems , we developed for the first time a new technique for fabricating both ti - zr - ni systems quasicrystal materials and zr - al - ni - cu systems amorphous - based composite materials using laser - induced self - propagating reaction synthesis ( lsrs ) 注意到構成ti - zr基準晶合金體系和zr基大塊非晶合金體系的主要組元之間具有很大的負混合焓,因而能夠發生很強的放熱反應。利用這一特點,我們首次開展了激光誘導自蔓延反應合成ti - zr - ni系準晶材料和zr - al - ni - cu系非晶復合材料的探索研究。

The concrete added organic water - reduce and plastic agent , called yj , would improve concrete workability , and reduce slump loss , decrease the exothermic rate at the early stage and postpone the arrival time of the highest temperature . lt is compatible to cement well , and had good retarding property , and some air - entrained effect 81mpa提高到3 28mpa ; 28d抗壓強度比為135 ;拌和物工作性能優良。應用klfs ,成功配制出c50 c70復合抗裂防滲高性能混凝土,并在實際工程中得到應用。

High performance concrete is a good example of the application of high performance cement - based materials . superplasticizer has played the vital roles in the high performance of concrete . the systematical study on the rheological characteristics 、 hydration exothermic reaction 、 electrical property 、 early microstructure and shrinkage performance of the fresh cement paste with different superplasticizers were conducted in order to analyze the impact of superplasticizer to the hydration process of cement , by researching the different property of fresh cement with superplasticizer 本文選擇摻有不同類型高效減水劑的新拌水泥漿體的流變特征、水化熱性能、電性能、早期微觀結構以及收縮性能等作為研究課題,旨在通過系統地研究含高效減水劑的新拌水泥漿體的各項性能,分析高效減水劑對水泥水化過程的影響,指導水泥、混凝土及減水劑的生產實踐。

The mechanism of dual activation reactive milling is discussed . according to the mechanism , the mechanical activation from ma and thermal activation from the second high - exothermic reaction system ( ti - c ) are utilized for synthesizing of nanometer - sized tic powder from low - cost tio2 powders . in the process , the mechanical activation is a fundamental 在“雙重激活反應研磨”機制中,利用ma過程中的機械激活作用以及所引入的ti - c高放熱反應體系所帶來的熱激活作用,以低成本的tio _ 2為原料合成納米tic粉末。

400 - 432 exothermic peak in dta curve of remainders and 460 - 490 weight loss peak in dtg curve appeared at the decaying process in oasis ecosystem , but did n ' t appear in desert ecosystem . the weight loss rate of dta 300 peak was correlative to qv outstandingly ; the weight loss rate of dta 450 peak was not correlative to qv 綠洲生態條件下,腐解過程中玉米秸和大豆秸的dta曲線中出現了400 - 432的小放熱峰, dtg曲線中出現了460 - 498的小失重峰,而荒漠生態條件下則沒有出現。

With the increase of - cyclodextrin concentration , the decrease of temperature and prolongation of time , the inclusion complexes of - cyclodextrin with these aromatic ami no acids became more stable . these results showed that the inclusion was a reversible equilibrium process and the inclusion of - cyclodextrin with these aromatic amino acids was exothermic 從紫外光譜和熒光光譜測試結果表明, ?環糊精用量的增加、溫度的降低、時間的延長,有利于?環糊精與這三種芳香族氨基酸形成較為穩定的包合物。

During the course of ball milling , there was a rise of temperature , which accord with the value of theory well and proved that there was a exothermic reaction which happened suddenly and completed soon . this ball milling reaction was a sudden and fast self - propagating reaction , not a gradually diffusing reaction 在球磨過程中,檢測到有溫度突然升高的現象,而且與理論計算值符合很好,可以證明球磨時存在一個突然發生、瞬間完成的放熱反應;該球磨反應的是一個突然爆發的自蔓延反應,是瞬間合成過程,而不是一個逐漸擴散的反應過程。

Products : rectifers , high silicon cast iron anodes , mmo anodes ( rod , tubularribbon ) , titanium conductor bar , sacrificial anodes ( aluminum , magnesiumzinc ) , magnesiumzinc ribbon anodes , zinc grounding cell , reference electrodes , test postjunction boxes , thermite ( corrtech exothermic weld metal ) mold , cathodic protection system utilizing solar energy , cp data remote monitoring system , and other accessories 我們的產品:恒電位儀、高硅鑄鐵陽極、鈦基混合金屬氧化物陽極(帶狀、棒狀、管狀) 、鈦導電片、鋅合金陽極、鎂合金陽極、鋁合金陽極、鋅帶鎂帶、長效硫酸銅參比電極、高純鋅參比電極、鋅接地電池、陰極保護測試樁、鋁熱焊模具和焊劑、太陽能陰極保護系統、陰極保護參數遠程監測控制系統等全系列陰極保護系統配套產品。

It showed that qv was mainly decided by the amounts of pyrolysis parts at lower exothermic peak ( 300 ) . the h300 / h450 ratio at dta curve and w320 / w500 ratio at dtg curve have the similar tendency of changes . both can be used as the index to describe the decaying process Dta曲線中h300 h450的比值與dtg曲線中w320 w500比值的變化趨勢基本一致,經相關分析,兩者的相關系數為0 . 8035 ( n = 32 ) ,達極顯著相關水平,兩者都可作為熱分析方法表征腐解進程的指標。

The research of this text is about stopping “ alkali - aggregate reaction “ , reducing concretes exothermic peak , controling the internal concrete adiabatic storage and using the microexpansivity of magnesia to make up the shrinkage production in the later harden 本文從防止“堿集料反應” 、降低水泥水化放熱峰、控制混凝土內部絕熱溫升和利用mgo微膨脹補償水泥石硬化后期產生的收縮等方面進行研究與探討。

Xt - yb - 1 is a development of the new company and quartz sand mixed casting artificial marble ( genus said : quartz resin ) resin , the resin curing exothermic peak at the low shrinkage of small , high surface hardness of products , not radioactive 1是我公司新開發的一種和石英沙混合澆鑄人造大理石(屬稱:石英樹脂)樹脂,該樹脂固化時放熱峰低、收縮率小,制品表面硬度較高,沒有放射性。

Finally , paper takes the decomposing explosion of methyl nitrate as an example to illustrate how to use this approach to quantitatively evaluate the potential dangers in such exothermic reaction system with possibility of thermal explosion 用硝酸甲酯分解爆炸實例,說明如何利用安全指數對具有熱爆炸可能性的系統的潛在危險性進行定量評價,其預測結果與實驗結果一致。

The effectiveness of the proposed multiple linear model predictive control with state estimation is demonstrated through its application to the exothermic chemical reactor , which is a typical nonlinear unstable process 最后,將所發展的多重模式預測控制技術應用于典型非線性不穩定的化學反應制程控制問題上,以證實其效能。

It is based on the exothermic reaction of the corresponding metal nitrates with a reducing agent and yields extremely fine - grained ashes that readily convert into pure znfe2o4 when treated thermally 該法是在還原條件下,以相應的金屬硝酸鹽的放熱反應為基礎從而產生了超細粉末,然后通過加熱使其轉化為純的znfe _ 2o _ 4相。

Then an approach was put forward to evaluate the potential risk of thermal runaway in exothermic reaction system by use of system safety index , and the equilibrium region of exothermic reaction systems was analyzed 提出用系統安全指數概念來評價放熱反應系統發生熱爆炸的潛在危險性,分析化學放熱系統的平衡域。

The high temperature exothermic peak of nh4clo4 added 5wt % and 10wt % is respective 63k and 130k lower than the pure nh4clo4 . the “ segregation of solute model ” is established and discussed 添加5wt %和10 % wt冷凍干燥技術制備的超細鎳粉的高氯酸銨,它們的高溫分解放熱峰溫度分別比純的高氯酸銨降低了63k和130k 。

Through numerical simulations on the composition control for an exothermic chemical reactor system , the comparative evaluation between the proposed control and the nonlinear model predictive control ( nmpc ) are given 藉由數?模擬一放熱反應器系統內的組成控制,將提出控制方法與非線性模式預測控制做比較性評價。

For example , if the energy from an exothermic chemical reaction is absorbed in a container of water , the change in temperature of the water provides a measure of the amount of heat added 舉例來說,如果能由一個放熱化學反應所吸收,在一個貨柜內的水,這一變化在水溫提供了一個衡量的數額熱量補充。