乳化液浓度自动检测配比系统

本文论述了乳化液浓度自动检测配比系统。文章给出了阻容型浓度、液位传感器的原理、结构和测试电路，以及实现乳化液浓度自动检测与自动配比的系统硬件和软件。系统样机通过了型式试验、防爆和工业性试验。研究结构表明，本系统性能优良，达到了煤矿监控产品技术标准，对提高煤机械自动化程度具有重要意义，推广应用前景广阔。     

智能化劳厄定向法

提出了晶体劳厄定向的智能化方法；简述了有关的Ｘ射线衍射理论、数学模型和运行步骤；讨论了该方法的可靠性和实用性．     

辐射对血液流变效应的研究及动物全身照射后全血粘度的变化规律

本文结果表明经一次大剂量全身照射后的机体血液流变的主要特性为全血表观粘度先高粘后低粘的双向性变化,从照后第一天起即升高。随着放射病病程的发展,在早期有一个高粘峰,其峰均值比照前升高47.80％。但因不同动物、不同剂量、不同均速,不同血源而变化不同。     

水润滑赛龙轴承及其润滑性能综述

赛龙以其抗冲击、耐泥砂、耐磨损、承载力高而逐渐成为一种新兴的水润滑轴承材料。本文简单介绍了水润滑赛龙轴承材料的分类，论述了水润滑赛龙轴承的发展现状以及其结构、特性和优点，并阐述了水润滑赛龙轴承的研究现状和推广应用前景。     

Investigation of electrode and hydrogen induced crack in welded joint of dissimilar steel

The welded joint of dissimilar heat-resisting steels 20Crl2MoV(F12)and 12 Cr2MoWVTiB(102)generally works around 600°C.In this paperthree kinds of ferritic electrodes are used for testing.They are R817 high-strength electrode(CrllMoVNi),R347 low-strength electrode(Cr2MoVWB)and newly-developed R507MoNb medium-strength electrode.The study on theinfluence of those three different electrodes on carbon migration,HIC and hy-drogen diffusion shows that medium-strength electrodes can well control thecarbon migration,and that the tendency to HIC in the joint formed by R817 issmaller than that by R347 instead.Considering the effect of weld metal transfor-mation on the restraint stress and hydrogen concentration of a joint,the hydro-gen distribution in the heat-affected zone(HAZ)is calculated by using finite ele-ment method(FEM)with stress and strain changing,and so the effect of thetransformation behaviour on HIC is revealed.In addition,newly-developedR507MoNb electrodes,tested the elevated-temperature property,oxidation re-sistance and creep rupture strength,have fulfilled the technical standards con-cerned and passed the examination of on-the-spot operation.     

Fluorescence spectra of ARE2I5 and AREI3 in the solid state (A ≡ K, Rb, Cs, Ti; RE ≡ Sm, Eu)

The fluorescence spectra of ARE₂I₅(s) and AREI₃(s) (A ≡ K, Rb, Cs, Tl; RE ≡ Sm₁ Eu) have been studied systematically. The regular shift of the central wavelengths is discussed in a preliminary manner on the basis of crystal lattice field and covalence effects.