D1100-11型造气鼓风机技术改造

针对国内采用煤制气工艺的部分中氮肥生产厂发生的造气鼓风机出力不足的现象，根据不同的系统工作状况对原风机的叶轮进行重新设计施工，不改变机组其余部分，以起到增压扩容的效果，从而实现增产降耗的目的。     

短纤维增强透气性莫来石/铁(A3S2/Fe)复合材料烧结特性的研究

本文研究了A₃S₂/Fe复合材料的烧结特性、透气性和纤维增强效果,分析了烧结过程中材料宏观结构和微观组织的形成机理.实验结果表明:纤维增强A₃S₂/Fe复合材料在900～1000℃具有良好的烧结性能,烧成后表层存在一定厚度的硬化层;纤维增强效果显着.材料抗压强度达17～23MPa,相对透气系数为4.30～9.69cm3/(cm2·s·atm).已能满足实际应用的需要.     

电脑—探针微孔测量方法研究

本文讨论了微孔自动化测量装置的原理与结构。电接触探针在微机控制下,在X方向找中心,在Y方向进行孔径测量。该系统不仅能实现测量过程自动化和测量结果自动显示,而且能自动消除测量工作台丝杠螺母反向间隙对测量精度的影响。     

Direct-flow two-bath steelmaking furnace with high-powdered gas-oxygen roof burners

Orsk-Khalilovo Metallurgical Combine. Scientific-Research Institute of Metallurgy. Translated from Metallurg, No. 3, pp. 43–45, March, 1988.     

Determination of the thermal conductivity of amorphous metallic alloys

Two techniques are suggested for identifying the temperature dependence of the thermal conductivity of a new class of materials. The results have been obtained for the metallic glass Co₇₇Fe₄Cr₇Si₈B₄.Institute for the Problems of Mechanical Engineering, Kharkov. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 63, No. 3, pp. 314–320, September, 1992.     

基于虚拟仪器技术的多线程数据采集系统

本文论述了如何利用虚拟仪器技术以及多线程技术来进行数据采集，并介绍了在工业中的实际应用。     

纳米羟基磷灰石的合成及分散性能研究

采用中和反应制备羟基磷灰石（HA），在反应过程中添加了六偏磷酸钠、三聚磷酸钠和“快易”作分散剂。采用X射线衍射仪（XRD）、扫描电镜（SEM）、透镜电镜（TEM）、热重和差示扫描分析（TG-DSC）等测试手段对所合成的粉末进行了表征。结果表明：分散剂添加的时间对合成粉末的粒径没有明显的影响；三种分散剂中六偏磷酸钠和三聚磷酸钠的均有较好的分散效果，粉末粒径达到纳米级。     

Three-dimensional inverse scattering of a dielectric target embedded in a lossy half-space

A modified iterative Born method is applied for three-dimensional inversion of a lossless dielectric target embedded in a lossy half-space. The forward solver employs a modified form of the extended Born method, and the half-space Green's function is computed efficiently via the complex-image technique. Example results are shown, with all scattering data based on a computational model, utilizing a rigorous forward solver distinct from that employed in the inversion. In addition, distinct gridding schemes are used in the forward and inverse solvers. Simple Tikhonov regularization is found to yield adequate results for inversion of noisy data.     

Exciton photoluminescence in doped quasi-1D structures based on silicon

The dependence of carrier density in silicon quantum wires sheathed with SiO₂ on the wire diameter and the position of impurity atoms in respect to the wire center is analyzed theoretically. It is shown that, as the diameter of wires and nanocrystals decreases, the ionization energy of a dopant increases; therefore, the free carrier density decreases, and the screening of the Coulomb attraction becomes ineffective. As a result, the photoluminescence is defined by the radiative recombination of excitons even in the case of heavily doped Si. These conclusions are supported by the data of experimental study of spectral, excitation-power, and temperature dependences of photoluminescence in porous silicon structures fabricated on lightly and heavily doped Si substrates.     

用两亲聚合物制备大颗粒苯丙乳液

分别以两亲聚合物P(C9-AA)和P(DCPD-St-α-St-AA)作乳化荆，研究了制备大颗粒(约1μm)及具有一定稳定性的苯丙乳液的方法，讨论了乳化剂，温度及引发剂用量对乳液性能的影响。结果表明，以P(C9-AA)作乳化剂时，引发剂用量为单体质量的1．2％，90℃时可以合成性能良好的苯丙乳液；以P(DCPD-St-α-St-AA)作乳化荆时，引发剂用量为单体质量的1．2％，80℃时可以合成性能良好的苯丙乳液。