The Thimble King cashmere and wool overcoats made by the Gold Thimble Fashion Company in Dandong City, Liaoning Province, are of international fashion, unique style, selected materials and superb craftsmanship. With t...The Thimble King cashmere and wool overcoats made by the Gold Thimble Fashion Company in Dandong City, Liaoning Province, are of international fashion, unique style, selected materials and superb craftsmanship. With their style and quality in perfect harmony, the overcoats are comfortable and elegant. The company has adopted展开更多
Irradiation assisted stress corrosion cracking(IASCC)behavior and irradiated microstructural features of coldworked 316 stainless steel flux thimble tube specimens were investigated in 340℃simulated PWR primary water...Irradiation assisted stress corrosion cracking(IASCC)behavior and irradiated microstructural features of coldworked 316 stainless steel flux thimble tube specimens were investigated in 340℃simulated PWR primary water.It covers three dose levels(~40,~60 and~100 dpa)and five stress levels(35%,40%,50%,60% and 70% of irradiated yield strength at high temperature.Crack initiation in highly irradiated materials occurred rapidly in 33 failed specimens at high-stress level.A clear dose dependence for IASCC initiation was observed.The susceptibility to IASCC initiation reached saturation around 40–60 dpa.Fracture surface of different dose level O-ring specimens showed that intergranular cracking was the main fracture mode.Discrete slip steps were observed on intergranular fractured regions of each dose level specimens,which is associated as evidence of dislocation channeling.A threshold stress level which was close to 30% yield strength was determined on various testing results from literature and this study.Data scatter was observed for those results from different studies but all agreed on that the failure rate increases with stress level and neutron dose.展开更多
Starting from the free field realization of Kac-Moody Lie algebra,we define a generalized Yang-Yang function.Then for the Lie algebra of type An,we derive braiding and fusion matrix by braiding the thimble from the ge...Starting from the free field realization of Kac-Moody Lie algebra,we define a generalized Yang-Yang function.Then for the Lie algebra of type An,we derive braiding and fusion matrix by braiding the thimble from the generalized Yang-Yang function.One can construct a knots invariant H(K)from the braiding and fusion matrix.It is an isotropy invariant and obeys a skein relation.From them,we show that the corresponding knots invariant is HOMFLY polynomial.展开更多
文摘The Thimble King cashmere and wool overcoats made by the Gold Thimble Fashion Company in Dandong City, Liaoning Province, are of international fashion, unique style, selected materials and superb craftsmanship. With their style and quality in perfect harmony, the overcoats are comfortable and elegant. The company has adopted
基金financially supported by the National Key R&D Program(2019YFB1900902)
文摘Irradiation assisted stress corrosion cracking(IASCC)behavior and irradiated microstructural features of coldworked 316 stainless steel flux thimble tube specimens were investigated in 340℃simulated PWR primary water.It covers three dose levels(~40,~60 and~100 dpa)and five stress levels(35%,40%,50%,60% and 70% of irradiated yield strength at high temperature.Crack initiation in highly irradiated materials occurred rapidly in 33 failed specimens at high-stress level.A clear dose dependence for IASCC initiation was observed.The susceptibility to IASCC initiation reached saturation around 40–60 dpa.Fracture surface of different dose level O-ring specimens showed that intergranular cracking was the main fracture mode.Discrete slip steps were observed on intergranular fractured regions of each dose level specimens,which is associated as evidence of dislocation channeling.A threshold stress level which was close to 30% yield strength was determined on various testing results from literature and this study.Data scatter was observed for those results from different studies but all agreed on that the failure rate increases with stress level and neutron dose.
文摘Starting from the free field realization of Kac-Moody Lie algebra,we define a generalized Yang-Yang function.Then for the Lie algebra of type An,we derive braiding and fusion matrix by braiding the thimble from the generalized Yang-Yang function.One can construct a knots invariant H(K)from the braiding and fusion matrix.It is an isotropy invariant and obeys a skein relation.From them,we show that the corresponding knots invariant is HOMFLY polynomial.
