Surface Modification by a Flexible Tool. 2. Practical Use of Coating Application by Rotary Wire Brushes

The influence of various factors on the strengthening, restoration and strengthening of metal surfaces by frictional cladding is investigated. Applying electric current intensifies the process. The coating thickness and plasticity are also increased.     

Optical and Magnetic Behaviors of Ru-Doped ZnO Nanoparticles

Journal of Superconductivity and Novel Magnetism - This work uses the co-precipitation method for the synthesis of Zn1-xRuxO nanoparticles, with (0?≤?x?≤?0.04)....     

Life of Slip Bearings in the Supporting Roller System of Section Rolling Mills

Russian Engineering Research - A new bearing is proposed for the input roller system in stands of the 170 section rolling mill at PAO MMK. A model of slip-bearing wear establishes the...     

Additive Technology in Restoring the Worn Spherical Surface of Crusher Cones

Russian Engineering Research - Abstract—Restoration of the spherical surface of a steel 35L cone housing by mechanized surfacing in protective gas is proposed. The method employed does not...     

45CrNiMoVA钢堆焊修复层组织及摩擦学性能

利用脉冲熔化极气体保护焊技术,采用UTP A DUR600耐磨焊丝,在45CrNiMoVA钢上制备耐磨堆焊层,用带有能谱仪(EDS)的扫描电子显微镜(SEM)观察分析堆焊层的组织形貌,测定堆焊层的硬度,评价堆焊层的耐磨性.结果表明:堆焊层的主要组织为奥氏体和二次渗碳体,堆焊层的硬度较基体有了较大提高,堆焊层较基体有更加优良的耐干滑动摩擦磨损的性能,堆焊层中二次渗碳体的存在,奥氏体的加工硬化以及碎屑在摩擦作用下的碎化、动态氧化和热压烧结,是堆焊层具有更优异磨损性能的原因.     

An Adaptation of Kubista's Method for Spectral Curve Deconvolution

A chemometric approach to spectral curve deconvolution is described, evaluated, and applied to micellar systems. The technique is based on the method of principal component analysis of a spectral matrix followed by transformation of the abstract vectors into real spectra and concentrations. The approach reported here is similar to that of Kubista et al. (Anal. Chem. 1993, 65, 994-998). In the present study, however, more spectral information is known about the system of interest. This information is included in the deconvolution, which should, in general, increase the reliability of the method. From this method we obtain very reliable (noise-insensitive) λ(max) values of indicator molecules in the micellar pseudophase free from contributions of the indicator in the aqueous phase. The water-to-micelle partition coefficients are also determined. The effects of noise and the extent of indicator partitioning on the reliability of the method are evaluated using model data. The application of the method to the study of eight indicators in a prototypical micellar system (sodium dodecyl sulfate) is presented. Extension of the method to other types of chemical studies such as the determination of kinetic rate constants and product spectra is briefly discussed.