Abstract: The present disclosure discloses an extremely high-temperature in-situ fretting fatigue experimental device for the mortise-tenon joint. The device includes: a loading member configured to support a tenon specimen and a mortise specimen, and apply a fatigue load; a heating member to heat the tenon specimen and the mortise specimen; a thermal insulation sleeve wrapping the heating member; a thermal insulation shield with an observation hole; and a control member configured to control opening or closing of the loading. Various measures including the using of heat-resistant materials for the gasket, thermal insulation shield and sleeve, reducing and shielding the thermal electrons, and decreasing the temperature in non-critical areas are adopted to improve the high-temperature imaging quality of the in-situ Scanning Electron Microscope (in-situ SEM) and enhance an upper limit of the in-situ SEM experimental temperature.

Abstract: A system for ultra-high temperature in-situ fretting fatigue experiment, includes a heat preservation cover defining a, a heating device arranged in the mounting space, a first test sample, a second test sample, and a clamping device arranged in the mounting space. The first test sample and the second test sample are arranged at an upper end of the heating device along a horizontal direction. A mortise is formed at an end of the first test sample facing towards the second test sample. A tenon mating with the mortise is formed at an end of the second test sample facing towards the first test sample. The clamping device is configured to be clamped at two ends of the mated first test sample and second test sample and to apply a periodically reciprocating loading along a length direction of the first test sample and the second test sample.

Abstract: A system for ultra-high temperature in-situ fretting fatigue experiment, includes a heat preservation cover defining a, a heating device arranged in the mounting space, a first test sample, a second test sample, and a clamping device arranged in the mounting space. The first test sample and the second test sample are arranged at an upper end of the heating device along a horizontal direction. A mortise is formed at an end of the first test sample facing towards the second test sample. A tenon mating with the mortise is formed at an end of the second test sample facing towards the first test sample. The clamping device is configured to be clamped at two ends of the mated first test sample and second test sample and to apply a periodically reciprocating loading along a length direction of the first test sample and the second test sample.

Abstract: The present invention provides an application of triacetyl-3-hydroxyphenyladenosine represented by formula (I) in preventing or treating non-alcoholic fatty liver disease. The triacetyl-3-hydroxyphenyladenosine can significantly reduce the levels of serum AST, ALT and TG, significantly improve liver functions, and alleviate liver steatosis. The invention provides significant curative effects for preventing or treating non-alcoholic fatty liver and has limited toxic side effects.

Abstract: The present invention provides an application of triacetyl-3-hydroxyphenyladenosine represented by formula (I) in preventing or treating non-alcoholic fatty liver disease. The triacetyl-3-hydroxyphenyladenosine can significantly reduce the levels of serum AST, ALT and TG, significantly improve liver functions, and alleviate liver steatosis. The invention provides significant curative effects for preventing or treating non-alcoholic fatty liver and has limited toxic side effects.