Influence of shape and position harmonics of the frictional surfaces in slip bearings on the nutation of the shaft

The correlation of shape and position harmonics of the frictional surfaces in slip bearings with the nutation of the shaft is considered. With different combinations of harmonics, the amplitude of shaft motion may vary by a factor of 8–10.     

Evaluation of Permittivity and Thickness Gaging for Anisotropic Dielectric Coatings by the Method of Surface Electromagnetic Waves

Russian Journal of Nondestructive Testing - The widespread use of anisotropic composite dielectric coatings operating in the microwave range in various science-intensive areas has led to the search...     

Blast-Furnace operation with conical charging equipment at OAO Zaporozhstal

The operation of blast furnaces at OAO Zaporozhstal’ with a Tarasov charging system is considered. This system ensures an axial channel at the center of the furnace for gas transmission. The efficiency of the system is demonstrated.     

Ultrasonic densitometer using a multiple reflection technique

This work presents recent improvements in a density measurement cell with a double-element transducer that can eliminate diffraction effects. A new mechanical design combined with the use of more appropriate materials has resulted in better parallelism between interfaces, more robust assembly, and chemical resistance. A novel method of signal processing, named the energy method, is introduced to obtain the reflection coefficient, reducing sensitivity to noise and improving accuracy. The measurement cell operation is verified both theoretically, using an acoustic wave propagation model, and experimentally, using homogeneous liquids with different densities. The accuracy in the density measurement is 0.2% when compared with the measurements made with a pycnometer.     

Volitional facilitation of difficult intentions: Joint activation of intention memory and positive affect removes Stroop interference.

Removal of Stroop interference was obtained after exposure to words eliciting positive affect. This effect was predicted by personality systems interactions (PSI) theory, which assumes that (a) an abstract (high-level) representation of a difficult intention is generated in intention memory under certain conditions (e.g., when an action plan contains more than 1 step); (b) positive affect releases the inhibition of the pathway between intention memory and its output system. Interference removal is interpreted in terms of volitional facilitation. This effect posits a challenge to current cognitive models of the Stroop effect. Compared with alternative explanations, PSI theory can explain the data in a broader context: Implications of volitional facilitation and volitional inhibition for the study of prospective memory, alienation, procrastination, and rumination in depression are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Motivation, affect, and hemispheric asymmetry: Power versus affiliation.

In 4 experiments, the authors examined to what extent information related to different social needs (i.e., power vs. affiliation) is associated with hemispheric laterality. Response latencies to a lateralized dot-probe task following lateralized pictures or verbal labels that were associated with positive or negative episodes related to power, affiliation, or achievement revealed clear-cut laterality effects. These effects were a function of need content rather than of valence: Power-related stimuli were associated with right visual field (left hemisphere) superiority, whereas affiliation-related stimuli were associated with left visual field (right hemisphere) superiority. Additional results demonstrated that in contrast to power, affiliation primes were associated with better discrimination between coherent word triads (e.g., goat, pass, and green, all related to mountain) and noncoherent triads, a remote associate task known to activate areas of the right hemisphere. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

PRIZMA.D computational investigation of physical processes in the IGR reactor

It is shown for one experiment that the physical processes occurring in the-core of a pulsed uranium-graphite reactor IGR can be investigated by a computational method using the PRIZMA.D program and correlated results in multivariant calculations. 7 figures, 1 table, 7 references. Translated from Atomnaya énergiya, Vol. 88, No. 2, pp. 83–88, February, 2000.     

Ensuring the reliability of liquid-friction bearings for rolling mills

Means of ensuring the reliability of liquid-friction bearings are considered on the basis of spectral analysis of discrepancies in the shape and mutual position of the contact surfaces and supporting pins of rollers. The amplitude and phase spectra of the discrepancies in shape and mutual position of the basic bearing surfaces within the roller assembly are shown to influence the oscillatory motion of the common axis and the reliability of the components.