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The 0-1 knapsack problem (KP) is one of the classical NP-hard problems with binary decision variables. The traditional differential evolution (DE) is an effective stochastic parallel search evolutionary algorithm for global optimization based on real valued crossover and mutation operations in continuous space. To solve KPs, based on DE, a discrete binary(More)
BACKGROUND Inorganic arsenic (iAs) is a well-known human carcinogen recognized by the World Health Organization and the International Agency for Research on Cancer. Currently, most iAs studies in populations are concerned with drinking water and occupational arsenicosis. In Guizhou province, arsenicosis caused by the burning of coal in unventilated indoor(More)
The resource planning and scheduling technology of payload is a key technology to realize an automated control for earth observing satellite with limited resources on satellite, which is implemented to arrange the works states of various payloads to carry out missions by optimizing the scheme of the resources. The scheduling task is a difficult constraint(More)
OBJECTIVE To evaluate the treatment efficacy and tolerance of anti-human T lymphocyte porcine immunoglobulin (p-ALG) plus cyclosporine A (CsA) in acquired severe aplastic anemia (SAA). METHOD Forty-eight SAA patients [31 males and 17 females; 17 with very SAA (VSAA)] were treated with p-ALG plus CsA and were analyzed retrospectively according to early(More)
BACKGROUND Pulmonary hypertension (PH) is a common complication of congenital heart disease and pulmonary vascular structural remodeling due to the high pulmonary blood flow is considered as the key pathologic process. In the present study the effects of L-arginine on the collagen metabolism of pulmonary arteries in rats with high pulmonary blood(More)
Wood is a kind of porous natural material with very poor electro-conductivity, and it has almost no function of electromagnetic shielding. The method of electroless nickel plating was used to produce wooden material with electrical and effective electromagnetic shielding properties. Ni−P alloy layer was obtained on wood surface. The surface feature of(More)
  • Li Jian
  • 2009
A modified genetic particle swarm optimization method (MGPSO) is employed to solve the capacitated vehicle routing problems (CVRP). MGPSO was derived from the standard particle swarm optimization (PSO) and incorporated with the genetic reproduction mechanisms, namely crossover and mutation. MGPSO employs an integer encoding and decoding representation,(More)
  • Shu Jun, Li Jian
  • 2009
A parameter automation strategy for particle swarm optimization (PSO) is introduced to enhance the performance to solve high dimensions objects. Initially, to maintain the diversities of the population, the concept of “individual coefficients” (IC) is employed, where each particle has the individual inertia weight and social acceleration(More)
Landing gear of aircraft is the key component. The magneto-rheological (MR) damper applied to landing gear can ensure stability and safety during the process of takeoff, landing and rollout. Because of landing gear is a nonlinear, multivariate and multi-degree of freedom system. The traditional PID control can't obtain ideal control effects. Based on the(More)
PURPOSE Dilated cardiomyopathy (DCM) is a chronic disease characterized by autoimmunity. Th17 cells are a distinct subset from Th1 and Th2 cells and play crucial regulatory functions in inflammatory and autoimmune processes. The current study was designed to investigate the possible involvement of Th17 cells in DCM. METHODS Th17 cells were detected in(More)