Effect of Thermohydrogen Treatment on the Structure and Properties of Titanium Alloy Castings

Metal Science and Heat Treatment -     

Designing linear electric drives

Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 11, pp. 12–13, November, 1991.     

The classification of diseases of the temporomandibular joint

There were 2040 patients with temporomandibular joint (TMJ) diseases in the investigation including clinical, physiological, X-ray methods of research, contrast arthrotomography, computer arthrotomography and magnetic resonance tomography. The changes of structure in different lesions were estimated. The result of received data was elaboration of classification of TMJ internal derangements with estimation of clinical forms in according with structural changes and characteristics of syndromes.     

Ignition of a fuel-air mixture with a high-speed plasma jet

The conditions of ignition and the velocities of propagation of a flame along a tube in combustible mixtures prepared in advance upon ignition with a spark and a high-speed pulsed plasma jet are experimentally investigated.Chuvash State University, Cheboksary, Russia. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 67, Nos. 5–6, pp. 424–427, November–December, 1994.     

Macrokinetic equations for a phase transition of the first sort

Differential equations are derived for phase transition kinetics. Analytic solutions are obtained for linear dependence of new phase growth rate on the degree of completion of the phase transition.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 54, No. 1, pp. 117–121, January, 1988.     

Mechanism of Singeing Flame Excitation for a Homogeneous Mixture

The effect of vortex formation and the role of mixture flow rate in the excitation and sustenance of the self-oscillatory combustion regime of a kinetic singeing flame was studied experimentally. Using holographic interferometry and the Mies dispersion method, it is found that in the boundary layer at the burner exit, vortices arise periodically, which interact with the flame front to change the flame surface area and the heat release rate. It is shown that the main feedback mechanism is periodic vortex formation, and the occurrence of concentration regions of excitation and silence is related to the change in the number of waves falling on the flame height. It is found that in combustion of oxygen-rich fuel-air mixtures, acoustic oscillations arise at higher harmonics. Key words: singeing flame, hologram, vortices, coherent structures, physical mechanism.     

Alkali Cellulose as a Regulator of the Rheological Behavior of Solutions of Dyes

The characteristics of the rheological properties of dispersions of alkali cellulose are investigated and the possibility of using it as an effective regulator of the rheological properties of printing inks is demonstrated. Power- and resource-saving technology for printing textiles with active dyes based on the use of mixed alkali cellulose—starch as the printing ink thickener are proposed.     

Properties of maraging steels after high-temperature treatment

Conclusions For the optimal structure of austenite in maraging steels they should be subjected to rolling with a final rolling temperature not over 900°, rapid heating to Ac₃+30°, and rapid cooling.Institute of Solid State Physics, Academy of Sciences of the USSR. I. P. Bardin Central Scientific-Research Institute of Ferrous Metallurgy. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 4, pp. 31–33, April, 1981.