Abstract : apply computer simulation to the distribution pattern of air - flow without considering the cold condition of the combustion and compare the flow patterns under different designed circumstances. and the effect of the design of the partition in the air way of the burner on the flow and mixture of gas and air is especially studied. the result shows that the design of partition plays a very important role in strengthening the mixture of gas and air, but increases the loss of the resistance in the air way and the total pressure of the air way in same working conditions needs increasing
文摘:應用計算機模擬的方法,在不考慮燃燒的冷態情況下,研究了熱風爐燃燒室內的氣流分佈規律.在此
基礎上,比較了2種不同設計方案的氣流流動特徵,尤其是研究了燃燒器空氣通道內阻流板的設置與否對空氣和煤氣的流動和
混合的影響.結果表明,阻流板的設計對加強空氣和煤氣的
混合有著極為重要的作用,同時也增加了空氣管道的阻力損失,在同樣的工況條件下需要提高管道系統的總壓力
Algorism studying for a kind of nonlinear programming
基於種族優生的進化規劃用於
混合非線性整數規劃
Schneiderite, for instance, consisting of a mixture of ammonium nitrate and dinitronaphthalene, is mixed in an edge runner in batches of 60kg.
例如,由硝酸銨和二硝
基組成的
混合炸藥施奈德萊特,便是以每批60公斤在輪碾機中
混合的。
Besides, the legislation of criminal scout behavior is amphiboles, also with the improper setting mode of governor organization and the procedural deficiency in criminal scout. only one kinds of criterion of distinguishing the public security organ ’ s double behaviors is not enough to answer the question and to solve the problem that these two kinds of behaviors making confusion with each other. so it is necessary to define its theoretical base further and erect some correlative mechanism to make easy for the body to distinguish double behaviors automatically and consequently to guarantee each of these double behaviors goes to its own legal orbit
至於如何真正將公安雙重行為分辨清楚,切實有效解決公安雙重行為相互
混淆的問題,僅提出一個分辨標準是遠遠不夠的,這只可能解決了能辨的問題;因此,還需進一步明晰其理論
基礎並完善和構建相關機制,使之易辨,並促使行為主體主動去辨,從而保證公安雙重行為在各自法定的軌道上正常運行。
Taking the andalusite from south africa and alumina fiber as raw materials, adding aluminum sulphate as binder, fabrication and properties of alumina fiber reinforced andalusite composite was studied through wet dispersion, mould pressing and sintering processes
以紅柱石和氧化鋁纖維為原料,用硫酸鋁作為結合劑,經過分散、
混合、半干法成型、高溫燒成工藝,對氧化鋁纖維增強紅柱石
基復合材料的制備及性能進行了研究。
Voltage reference is a vital basic module which is widely adopted in analog circuits ( mixed signal circuits ). its temperature stability and antinoise capability influence the precision and performance of the whole system
電壓
基準源是模擬電路(
混合信號電路)設計中廣泛採用的一個關鍵的
基本模塊,它的溫度穩定性以及抗噪性能影響著整個電路系統的精度和性能。
Chitosan could be used to prepare controlled - release medicine membrane, artificial skin, and anti - adhesion membranes for post - operative application, etc. however, few chitosan membranes have been used in clinical practice
因此,本文採用殼聚糖作為防術后粘連膜的
基體材料,研究了殼聚糖及其共
混膜的制備方法並進行了結構與性能的表徵。
Hyperbola model of mgo - mixed concrete ' s autogeny deformation, especially deduce of the model ' s parameter and building process of the model are analyzed in detail. ( 2 ) calculating method of autogeny deformation and creep are discussed. based on these, timely - simulation theory of dam body ' s temperature field stress field and pre - process back - process method are mainly studied
( 2 )對mgo
混凝土的自生體積變形及徐變變形的計算方法進行了探討,在此
基礎上,重點研究了壩體溫度場和應力場實時模擬的原理以及前後處理方法。
Our previous studies showed existence of apoplast cam in the plant cell and cam had many extracellular functions. so it supposed cam may be one of important extracellular polypeptides and trigger the intracellular signal transduction by binding the receptor. in this study, radiolabelled ligand is used to investigate the binding characteristic of cam and a. thaliana protoplasts. and chemical crosslinking is employed to explore binding proteins in the membrane. at first, ( 35 ) ~ s - cam was produced using ( 35 ) ~ s - labeled amino acid mixture in e. coli. sds - page and autoradiograph indicated high - purified, high - specific radioactivity ( 35 ) ~ s - cam was obtained. electrophoresis of ( 35 ) ~ s - cam is the same as that of unlabeled cam with ca ~ ( 2 + ) or egta ; a quatitive of protoplasts was prepared by enzymolysis
首先,用~ ( 35 ) s標記的氨
基酸
混合物喂養工程菌成功地制備了~ ( 35 ) s標記的擬南芥鈣調素( ~ ( 35 ) s - cam ) , ~ ( 35 ) s - cam純度高、放射活度高、 ca ~ ( 2 + )與egta存在時的電泳行為與未標記cam相同,可作為一種高靈敏性的探針用於進行受體學分析實驗;用擬南芥種子誘導愈傷,通過酶解制備了大量原生質體。
We describe the meaning of chaos > future idea of chaotic theory and influence on forecast ; introduce the character of chaotic time series, and point out the problem and shortage of the methods already existed computing character value which are fractal dimension and the largest lyapunov exponent and improve on it ; present the forecast principle of forecast method based on chaotic attractor, and point out the shortage of local field forecast method based on chaotic attractor and bring forward improved on methodo at the same time, we put forward a banausic algorithm and compare two models using practical example
論述了
混飩的含義與
混淪理論的未來觀及其對預測的影響;介紹了。
混飩時間序列的特徵,指出了己有的計算分形維及最大李雅譜諾夫指數這兩個特徵量的方法存在的問題與不足,並對此進行了改進;給出了
基於
混飩吸引子的預測方法的預測原理,指出了常用的
基於
混燉吸引子預測的局域法的不足並給出了改進方法,同時,給出了其實用演算法,並用實例進行了比較。
Based on computer simulations, different programs, such as madymo and ls - dyna, were used in this paper to develop simulation model of car - barrier crash with two kinds of barriers ( concrete barrier and w - beam barrier ) and two styles of cars ( ford and santana ) respectively
文章
基於計算機模擬技術,使用不同軟體(多剛體動力學模擬軟體madymo和有限元分析軟體ls - dyna )針對兩種護欄(
混凝土護欄和波形梁護欄)和兩種不同轎車車型( ford車和santana車)分別建立了轎車-護欄碰撞的模擬模型。
Mixed - base numeration system
混基命數系統
Base notation, mixed
混基數記法
Mixed base notation
混基記法
Mixed - base notation
混基記法