5,437 research outputs found

    Коэффициент технической эффективности АТС: моделирование и расчёт

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    For the English abstract and full text of the article please see the attached PDF-File (English version follows Russian version).ABSTRACT The purpose of the research presented in the article is to refine the vehicle’s technical efficiency coefficient and to estimate the range of its values in the proposed design model, taking into account the different variants of configuration of cars of the same brand and under different driving regimes. The modeling schemes used and the evaluation criteria are based on the data of the author’s scientific analysis and are supported by operational practice. Keywords: vehicles, coefficient of efficiency, coefficient of technical efficiency, calculation methods, numerical modeling.Текст аннотации на англ. языке и полный текст статьи на англ. языке находится в прилагаемом файле ПДФ (англ. версия следует после русской версии).Цель представленного в статье исследования - уточнение коэффициента технической эффективности автотранспортного средства и оценка диапазона его значений в предлагаемой расчётной модели с учётом различных вариантов комплектации автомобилей одной марки и при различных режимах движения. Используемые схемы моделирования и оценочные критерии имеют в основе данные сделанного автором научного анализа и подкреплены эксплуатационной практикой

    Twinning of alloy VT1-0 after total annealing

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    Twinning, that occurs in titanium VT1-0 crystals under the action of a concentrated stress, is studied by microindentation methods, recording of acoustic signals and probe microscopy. Some parameters and description of forms of a twinned interlayer in polycrystalline titanium VT1-0 are provided. The possibility of studying this process by recording acoustic emission signals is demonstratedyesBelgorod State Universit

    Characteristics of ZrB₂-ZrO₂-MoSi₂-Al coating on carbon/carbon composite obtained by a new multi-chamber detonation accelerator

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    The ZrB₂-ZrO₂-MoSi₂-Al coating was prepared by a new multi-chamber detonation accelerator on carbon/carbon (C/C) composites without adhesion sublayer. The microstructure of the coating showed the laying characteristics of completely molten and partially molten areas had as lamellar-like structure. The coating was dense, homogeneous, and well connected with C/C composite substrate without sublayer. Void content in coating is 0.5±0.05% as determined by image analysi

    COSMETOLOGICAL SIGNIFICANCE PROBLEMS OF ANATOMY, EMBRYOLOGY AND STRUCTURAL AND FUNCTIONAL UNITS OF SKIN (TO HELP PRACTICING PHYSICIANS: PART 2)

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    The subject of the study – the features of skin’s embryology and histology. The purpose of a work – to present the problematic issues of skin’s anatomo-hystological structure. The analysis of modern scientific studies testifies to necessity for scrupulous accountancy of skin’s structure components development both in pre- and postnatal periods of human life. It will allow to avoid many clinical mistakes and provide pathogeneticly well-grounded correction of skin’s variable changing, both pathological and «cosmetological».Keywords: skin, histology. Предмет исследования – особенности гистологии кожи. Цель – представить врачам проблемные вопросы анатомо-гистологического строения кожи. Анализ современных научных исследований свидетельствует о необходимости тщательного учета развития структурных компонентов кожи на этапах как пре- так и постнатального периодов жизни человека. Это позволит избежать многих клинических ошибок и проводить патогенетически обоснованную коррекцию различных ее изменений, как патологических, так и «косметологических».Ключевые слова: кожа, гистология

    New Measurements of Nucleon Structure Functions from CCFR/NuTeV

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    We report on the extraction of the structure functions F_2 and Delta xF_3 = xF_3nu-xF_3nub from CCFR neutrino-Fe and antineutrino-Fe differential cross sections. The extraction is performed in a physics model independent (PMI) way. This first measurement for Delta xF_3, which is useful in testing models of heavy charm production, is higher than current theoretical predictions. Within 5% the F_2 (PMI) values measured in neutrino and muon scattering are in agreement with the predictions of Next-to-Leading-Order PDFs (using massive charm production schemes), thus resolving the long-standing discrepancy between the two measurements.Comment: 3 pages, Presented by Arie Bodek at DPF2000 Conference, Columbus, Ohio, Aug. 200
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