Degradation and overstress failures occur in many electronic systems in which the operation load and environmental conditions are complex.The dependency of them called dependent competing failure process(DCFP),has bee...Degradation and overstress failures occur in many electronic systems in which the operation load and environmental conditions are complex.The dependency of them called dependent competing failure process(DCFP),has been widely studied.Electronic system may experience mutual effects of degradation and shocks,they are considered to be interdependent.Both the degradation and the shock processes will decrease the limit of system and cause cumulative effect.Finally,the competition of hard and soft failure will cause the system failure.Based on the failure mechanism accumulation theory,this paper constructs the shock-degradation acceleration and the threshold descent model,and a system reliability model established by using these two models.The mutually DCFP effect of electronic system interaction has been decomposed into physical correlation of failure,including acceleration,accumulation and competition.As a case,a reliability of electronic system in aeronautical system has been analyzed with the proposed method.The method proposed is based on failure physical evaluation,and could provide important reference for quantitative evaluation and design improvement of the newly designed system in case of data deficiency.展开更多
Some authors have studied a series of (Pd0.9965 Fe0.0035)1-xMnx alloys which exhibit distinctly different magnetic properties depending upon the Mn concentration x. It is attributed to the competing interaction in mag...Some authors have studied a series of (Pd0.9965 Fe0.0035)1-xMnx alloys which exhibit distinctly different magnetic properties depending upon the Mn concentration x. It is attributed to the competing interaction in magnetic systems, In general, for a large number of alloy systems with mixed ferro-antiferromagnetic interactions, the competition leads to a diversity of magnetic struetures and critical phenomena.展开更多
The human world is always changing; one generation is different from another. It is easy to do nothing, but rather difficult to do something without hurting the spirit. Only those who have no prejudice and do not insi...The human world is always changing; one generation is different from another. It is easy to do nothing, but rather difficult to do something without hurting the spirit. Only those who have no prejudice and do not insist on their own selves can follow the changes and not suffer. Everything has its natural ability. And as to human beings, the best way of protecting ourselves and getting an advantageous position in the human world is to forget what must be forgotten; to be"useless"; to let everything do its own work according to its own ability and have its own names.展开更多
基金supported by the National Natural Science Foundation of China(61503014,62073009)。
文摘Degradation and overstress failures occur in many electronic systems in which the operation load and environmental conditions are complex.The dependency of them called dependent competing failure process(DCFP),has been widely studied.Electronic system may experience mutual effects of degradation and shocks,they are considered to be interdependent.Both the degradation and the shock processes will decrease the limit of system and cause cumulative effect.Finally,the competition of hard and soft failure will cause the system failure.Based on the failure mechanism accumulation theory,this paper constructs the shock-degradation acceleration and the threshold descent model,and a system reliability model established by using these two models.The mutually DCFP effect of electronic system interaction has been decomposed into physical correlation of failure,including acceleration,accumulation and competition.As a case,a reliability of electronic system in aeronautical system has been analyzed with the proposed method.The method proposed is based on failure physical evaluation,and could provide important reference for quantitative evaluation and design improvement of the newly designed system in case of data deficiency.
文摘Some authors have studied a series of (Pd0.9965 Fe0.0035)1-xMnx alloys which exhibit distinctly different magnetic properties depending upon the Mn concentration x. It is attributed to the competing interaction in magnetic systems, In general, for a large number of alloy systems with mixed ferro-antiferromagnetic interactions, the competition leads to a diversity of magnetic struetures and critical phenomena.
文摘The human world is always changing; one generation is different from another. It is easy to do nothing, but rather difficult to do something without hurting the spirit. Only those who have no prejudice and do not insist on their own selves can follow the changes and not suffer. Everything has its natural ability. And as to human beings, the best way of protecting ourselves and getting an advantageous position in the human world is to forget what must be forgotten; to be"useless"; to let everything do its own work according to its own ability and have its own names.
