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is:xk+1=Axk+(k,yk=Cxk+ηkThe optimum performance index of the systemfor tracking problem is:Jmin=minEr[(1/2)sum from k=0 to m e’kOek sum from k=0 to m-1 u’kRuk]The authors have deduced the optimal......
of assessment models of system risk, a new type of fuzzy pattern recognized model was put forward based on entropy and least generalized distance square sum of weight, which can realize subordinated vector dispersed of system safety grades. Two methods of defined balanced parameters were given between entropy and broad sense distance sum of weight. Examples showed that these methods have advantages......
the research, the development law and deformation property of axial force of pile body, shaft resistance of pile, and cumulative settlement of pile head under vertical cyclic dynamic loads were concluded. Through the comparison and analysis of the test results of dynamic models, the test results of Poulos (1989) and cumulative settlement model of the single pile under cyclic loads were confirmed......
and toughness of low alloy steel plates in which sum of [P], [N], T[O] is less than 8x10 5 and the effect of T[O] on strength and toughness of the steel plates in which sum of [S], [P], [N] is less than......
: The mechanical properties and microstructural evolution of zircaloy-4 subjected to cumulative strains of 1.48, 2.96, 4.44 and 5.91 through multiaxial forging (MAF) at cryogenic temperature (77 K) were investigated. The mechanical properties of the MAF treated alloy were measured through universal tensile testing and Vickers hardness testing equipment. The zircaloy-4 deformed up to a cumulative......
. The relationship between crack population and stress was reported by statistical distributions and the cumulative probability for cast Al alloys fail at a certain stress could be predicted by combination... [36] and crack closure model [37, 38] have been applied to explain the small-crack effects. TING et al [39] pointed that the total fatigue life (NT) is the sum of the crack nucleation life (Nn......
of acoustic emission was researched.Also the fracture morphology was examined by S-4700 SEM after tensile tests to prove the damage mechanism.The results indicate that the cumulative energy of acoustic......
-recrystallized structure with an average grain size of 0.4 μm was finally evolved after large cumulative strain.The results suggested that structural change was connected with thermal strain,where......
Mises stress and the maximal Von Mises stress and displacement vector sum of pile clamping mechanism were elicited. The simulation results were analyzed. The simulation results show that the distributions of Von Mises stress and displacement vector sum of pile clamping mechanism in the process of pile driving are differ from the distributions in the process of pile clamping. Reducing becomingly pile......
and compared. The highest cumulative methane yield of 286.3 mL/gsubstrate is obtained in C2, which is 40.11% higher than that of C0. The cumulative H2S yields of C1, C2 and C3 are 32.67%, 44.66% and 53.21... were also fitted by the Modified Gomperz equation, which was written as [29] where P(t) is the cumulative total methane yield (mL/gsubstrate); P is the total methane production potential (mL/gsubstrate......
