Machine tools for polygonal surfaces with chain drive

Considered the current design of the machine stand for processing fine-sized polygonal surfaces by kinematic adjustment. To coordinate and rotational movements of the tool parts used two chain transfer, one of which is made with adjustable gear ratio. Machine stand is designed for students laboratory work

The Cognitive-Behavioral Model of Clinical Aspiration for Hubristic Superiority

The article presents the results the clinical aspiration for superiority, which suggests: the constant aspiration to dominate in competitive struggle and achieve performance results that surpass the performance of other people or groups of people, the dependence of self-esteem on success in moving towards a goal, the implementation of which gives an advantage over competitors; the ignoring the negative consequences of competitive struggle - conflicts, emotional burnout, psychosomatization and the actualization of the feeling of envy. It was shown tat ciclic model of clinical aspiration for hubristic superiority consisits of the 1) dependence of self-esteem on the achievement of superiority over others, 2) choosing a goal to achieve superiority, 3) object selection for comparison / competitiveness, 4) nonflexible standards for achieving superiority - "rules of competitiveness", caused by 5) cognitive distortions and 6) behavior, associated with competitiveness and achievements giving the opportunity to compare themselves with others, 7) achieving or nonachieving superiority or refusal of comparison or competitive struggle, which lead to 8) narcissistic senses. This model considers as the base of cognitive-behavioral therapy of clinical aspiration for hubristic superiority

Effect of young basketball players’ self-regulation on their psychological indicators

One of the most important factors in the success of sports activities is the level of psychological readiness. The most significant indicator of psychological readiness is the ability to qualitatively regulate athlete’s activity, behavior, and mental state by their own psychic means (i.e., the ability to selfregulate). At the same time, there is not enough insightful research in sports science and in this area of knowledge.To determine the nature of the relationship and links between the psychological characteristics of young basketball players and the specific features of their self-regulation. A total of 160 basketball players (15-20 years old) participated in the study. The methods of selfregulation of sports activity, dispositional state of flow, basic beliefs, and dispositive optimism were used. Correlation links between the indicators of self-regulation of sports activities and the indicators of dispositional state of flow, basic beliefs, and dispositive optimism were revealed. The most significant link was defined with self-inductance and identified regulation. The differences between young basketball players with different peculiarities of self-regulation of sports activity were determined by almost all indicators of the dispositional state of flow, basic beliefs, and dispositive optimism. It was confirmed that the specificity of self-regulation of young basketball players is connected with the peculiarities of the dispositional state of flow, dispositional optimism, and basic beliefs. Through comparison, it is determined that young basketball players with autonomous sports self-regulation have the advantage of almost all indicators of the dispositional state of flow and they have more optimistic views on the future

Inward and Outward FDI Country Profiles, Second Edition

This second edition contains a series of 77 standardized country profiles dealing with the inward and outward foreign direct investment (FDI) performance of 40 economies. The profiles have been peer-reviewed by a global network of experts. The publication is intended to contribute to the analysis of trends in foreign direct investment and policy issues related to them. More specifically, the individual profiles discuss FDI trends and developments (country-level developments, the corporate players); effects of the recent global crises; and the policy scene. Each profile contains a standard set of tables, including on FDI stocks and flows, sectoral and geographical FDI distributions, the largest M&As and greenfield investments, the principal foreign affiliates (for inward FDI), and the principal multinational enterprises (for outward FDI). The standardized template used to produce the profiles allows cross-country comparisons. The volume is meant to be a reference tool for anyone interested in foreign direct investment

The development of long-range heat transfer surfaces for marine diesel engine charge air coolers

Charge air cooling is essential for the efficient operation of marine diesel engines. This work presents the results of research on the characteristics of long-range heat transfer surfaces for marine diesel engines. Elliptical and flat-oval tubes were considered. This study was carried out using mathematical models that consisted of the equations for energy conservation, motion, continuity, and state. The RSM turbulence model was used to close the system of equations. To solve the resulting system of equations, the RANS approach was used, which was implemented in the software package Code Saturne with a free license and the SimScale cloud service. The mathematical model was verified by comparing the model results with the experimental results obtained using a prototype heat-exchange surface of a charge air cooler at a test bench. The discrepancy between the theoretical and experimental heat transfer coefficient α was ≤ 8.3%. An estimate of the compactness of smooth elliptical and flat-oval tube banks compared with round ones was carried out. A 19.6% increase in compactness was obtained for elliptical tubes and 17.5% for flat-oval tubes. Based on the profiled finning surfaces, it is possible to improve their thermohydraulic characteristics by up to 40% when using them together with elliptical tubes compared with round ones and up to 26% when using them with flat-oval tubes

Transverse-momentum and pseudorapidity distributions of charged hadrons in pppp collisions at s\sqrt{s} = 7 TeV

Charged-hadron transverse-momentum and pseudorapidity distributions in proton-proton collisions at $\sqrt{s} = 7$~TeV are measured with the inner tracking system of the CMS detector at the LHC. The charged-hadron yield is obtained by counting the number of reconstructed hits, hit-pairs, and fully reconstructed charged-particle tracks. The combination of the three methods gives a charged-particle multiplicity per unit of pseudorapidity \dnchdeta|_{|\eta| < 0.5} = 5.78\pm 0.01\stat\pm 0.23\syst for non-single-diffractive events, higher than predicted by commonly used models. The relative increase in charged-particle multiplicity from $\sqrt{s} = 0.9$ to 7~TeV is 66.1\%\pm 1.0\%\stat\pm 4.2\%\syst. The mean transverse momentum is measured to be 0.545\pm 0.005\stat\pm 0.015\syst\GeVc. The results are compared with similar measurements at lower energies.Charged-hadron transverse-momentum and pseudorapidity distributions in proton-proton collisions at sqrt(s) = 7 TeV are measured with the inner tracking system of the CMS detector at the LHC. The charged-hadron yield is obtained by counting the number of reconstructed hits, hit-pairs, and fully reconstructed charged-particle tracks. The combination of the three methods gives a charged-particle multiplicity per unit of pseudorapidity, dN(charged)/d(eta), for |eta| < 0.5, of 5.78 +/- 0.01 (stat) +/- 0.23 (syst) for non-single-diffractive events, higher than predicted by commonly used models. The relative increase in charged-particle multiplicity from sqrt(s) = 0.9 to 7 TeV is 66.1% +/- 1.0% (stat) +/- 4.2% (syst). The mean transverse momentum is measured to be 0.545 +/- 0.005 (stat) +/- 0.015 (syst) GeV/c. The results are compared with similar measurements at lower energies

Measurement of the charge ratio of atmospheric muons with the CMS detector

We present a measurement of the ratio of positive to negative muon fluxes from cosmic ray interactions in the atmosphere, using data collected by the CMS detector both at ground level and in the underground experimental cavern at the CERN LHC. Muons were detected in the momentum range from 5 GeV/ c to 1 TeV/ c . The surface flux ratio is measured to be 1.2766±0.0032(stat.)±0.0032(syst.) , independent of the muon momentum, below 100 GeV/ c . This is the most precise measurement to date. At higher momenta the data are consistent with an increase of the charge ratio, in agreement with cosmic ray shower models and compatible with previous measurements by deep-underground experiments.We present a measurement of the ratio of positive to negative muon fluxes from cosmic ray interactions in the atmosphere, using data collected by the CMS detector both at ground level and in the underground experimental cavern at the CERN LHC. Muons were detected in the momentum range from 5 GeV/c to 1 TeV/c. The surface flux ratio is measured to be 1.2766 \pm 0.0032(stat.) \pm 0.0032 (syst.), independent of the muon momentum, below 100 GeV/c. This is the most precise measurement to date. At higher momenta the data are consistent with an increase of the charge ratio, in agreement with cosmic ray shower models and compatible with previous measurements by deep-underground experiments