The Combined Convection-Radiation air conditioning system using building structure is a system that combines the strengths of the TABS and convection systems. The purpose of this study was to ...investigate the specification of this system and determine its thermal performance. For the experiment, two concrete test specimens were prepared assuming this system and general TABS. The placement method for the pipes and the airflow conditions around the test specimens were varied, and a comparison of the changes in the thermal performance. This paper indicates the strengths and weaknesses of this system compared with general TABS.
Based on experimental studies of specimens of 12Kh18N10T stainless steel under a rigid (strain-controlled) deformation process, which includes a sequence of monotonic and cyclic loading modes, some ...features and differences between isotropic and anisotropic hardening under monotonic and cyclic loading are found. To describe these features in terms of the theory of plasticity (the Bondar model), the criterion of change of plastic deformation direction and a memory surface are introduced in the space of the plastic strain tensor, which allow one to separate the processes of monotonic and cyclic loading. To describe the transitional processes, evolutionary equations for isotropic and anisotropic hardening parameters are formulated. The change in the stress-strain state during monotonic and cyclic loading, obtained by calculation and experiment, is compared.
In this paper, the static constitutive model of rubber damping materials, the equipment needed in experiment and the method of experiment design optimization are studied, providing new experiment ...design and theoretical basis for accurate design and application of vehicle rubber damper.
A mathematical model of damage accumulation processes in structural steels is developed. This model considers degradation mechanisms that combine fatigue and creep of the material. The processes of ...viscoplastic deformation and damage accumulation in 08Х18Н10Т and 12Х18Н9 structural steels are numerically studied. The numerical results are compared with the data from full-scale experiments. The reliability of chosen defining equations describing combined effect of fatigue and creep mechanisms is confirmed.
Advancing higher education is an important goal within the scientific and medical communities. The Korean Endocrine Society has worked with medical researchers who hope to conduct molecular research ...in addition to their clinical education. Based on concepts developed at a 2016 educational workshop, this article summarizes the requirement for a strong foundation in the performance of molecular research. Specifically, recent articles in metabolic research are highlighted to provide examples of commonly used techniques in this field of study.
A mathematical model is developed within the framework of equations of damaged medium mechanics to describe the processes of viscoplastic straining and damage accumulation in structural steels with ...allowance for fatigue and creep of the material. A model of damage summation due to interaction of low-cycle fatigue and creep of the material is proposed. Material parameters and scalar functions of equations of mechanics of damaged media are determined. Viscoplastic straining and fatigue-induced damage accumulation in 08Kh18N10T and 12Kh18N9 are studied numerically, and the data obtained are compared with available results of physical experiments.
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