Abstract:在α-SiC和β-SiC超细粉末中,以Al、B、C为烧结助剂,分别添加0～24vol%WC,研究了SiC—WC复相陶瓷的力学性能和显微结构,获得了一种室温弯曲强度和断裂韧性分别达700MPa和8.6MPa·m(1/2)的SiC-WC复相陶瓷.

Abstract:The study is on utilizing the pretreated alkaline soapstock waste water of daily chemical plant to desulfurize flue gas. After pumping the waste water the wet type dust removal system of industrial boiler, the effluent can be reused after dynamic micropor

Abstract:设a>1,R_G=R_G(a)表示Grotzsch环,它的余集分支由单位球|x|≤1和射线a≤x_1<∞,x_2=x_3=…x_m=0组成,它的模modR_G(a)记为logΦ(a),本文证明了关于模函数Φ(a)的若干不等式.

Abstract:在pH为6.3的六次甲基四胺—盐酸介质中,铜(Ⅱ)-O-NPF-CTMAB络合物的最大吸收波长为595nm,摩尔吸光系数值ε为1.25×10~5L·mol~(-1)·cm~(-1).铜浓度在0～7μg/25ml范围内服从比耳定律.用本法测定了铝合金和天然水中微量铜.

Abstract:In this paper de Morgan subalgebra and product algebra of topology are introduced and investigated, Among the interesting special cases are subspaces and product spaces in point-set topology.

Abstract:In the numarical solution of elliptic partial differential equation,M-matrices and Stieltjes matrices are often met, For extending the concept M-matrices,we discuss in this paper the property of M-matrices and generalized M-matrices. Their application to

Abstract:Some convergence proofs are given for asynchronous parallel successive overrelaxation algorithms for the linear complementarity problem,The convergence theorems we get may be considered as an extension of the previous results of Mangasarian, and De leone.

Abstract:This paper discussed the minimization problem of a kind of functional with obstacle constraint,the boundedness and partial regularity of the solutions were obtained.

Abstract:The motion law of the particles propagating in one-dimensional random force medium under the action of extra driven force is studied and the AC response of these systems is found out in this paper. The unusual power of relationship between susceptibility

Abstract:In this paper,in the light of symmetrical properties of space-time,the relation between symmetry and conservation law is discussed,a few symmetrical methods used frequently in physics are introduced. Moreover,the significance of symmetry and symmetrical m

Abstract:A bioselective membrane electrode sensistive to adrenine has been prepared and made in flow type by means of banana tissue covering an oxygen electrode. The response properties of the electrode and the influence of experiment conditions and parameters are

Abstract:The Ni-W-WC-WO_3 composite cathode was obtained by electroplating on nickel cathode substrate. Its exchange current density i_0 greatly increases and its hydrogen overvoltage greatly decreases than Ni and Fe. The surface area of Ni-W-WC-WO_3 cathode is tw

Abstract:This paper summed up the work of the development of synthol liquid fuel,which is suitable to HZ-2 style synthol fuel even developed by a new production development and research institute. This fuel mainly consists of semi-finished methanol, It stated the

Abstract:In this paper we report that a new soluble-water porphyrin and its metalloporphyrins are synthesized. These compounds are characterized by IR,UV and elemental analysis. The reaction condition is also discussed.

Abstract:Smoke exhausted from diesel engine is one of the main atomosphere pollution sources. In this paper, authors have summarized the progress made on the research about engine exhauting blue and white smoke home and abroad, and put forward some siginificant pr

Abstract:That the stiffness of the follower lever set is a function of rotational displacement of cam is considered in this paper. The variable cofficient model of cam train is set up. The displacement of follower lever motion is determined by perturbation method,

Abstract:By introducing current-mode circuits technology into neural networks (NN)theory, a current-mode NN threshold processing element is proposed. On the basis of which the current-mode Hopfield NN is constituted. The signals in this network are all presented i

Abstract:In this paper, a new non-linear constrained optimization model of single tunned filter of partial tunned type is proposed. The big system theory is introduced to programme single tunned filter and high pass filter coordinateiy. The practical computation s

Abstract:It is pointed out that even a single multiplication in the so-called new fast algorithm for circular convolution put forward by Wang in reference[3] is actually not faster than the whole computation for circular convolution in direct multiplication. If th

Abstract:The real polynomial type public key cryptosystem is evaluated with the essential requirements of public key cryptosystem, and an algorithm which can be used to entirely attacked the system is designed. Furthermore this paper points out that the realizatio

Abstract:The relationship between the modulus of resilience and California bearing ratio and their measurement are diseased, and a large number of field measure is carried on a sample road in Xinyang region of Henan. A relation expression between the modulus of re

Abstract:The Rayleigh-Ritz method is used to determine the torsional-flexural buckling load of singly symmetric thin-walled open sections under axial thrust and unequal terminal moments. Three kinds of common boundary conditions are taken into consideration, and t