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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)
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)
  • 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)
  • 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)
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)
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)
People can obtain information from heterogeneous data resources by semantic querying based on ontology. The difficult problem is how to reformulate a global query into multiple sub-queries over those local data bases. This paper presents a kind of uniform expression for queries of concept instances and a method in dividing the query expression into the(More)
  • Shu Jun, Li Jian
  • 2009
The 0-1 knapsack problem (KP) is a classical NP-hard problem with binary decision variables. The traditional differential evolution (DE) is an effective stochastic parallel search evolutionary algorithm and customized to continuous function optimization. To solve KPs, based on DE, a discrete binary version of differential evolution (DBDE) was employed,(More)
Power line communication is one of the most promising wired home-networking technologies. Home Plug 1.0 is the most popular power line communication technology which extends the random back off algorithm to improve the collision problem. We propose to study the performance of back off algorithm based on the Home Plug 1.0 especially in the multihop(More)
This clinical study was designed to evaluate the efficacy and safety of this therapy in the treatment of respiratory and urinary infections caused by ceftriaxone-resistant bacteria in comparison with the effect of cefoperazone/sulbactam on cefoperazone-resistant bacteria. A total of 285 patients aged from 18 to 65 years old, with a respiratory or urinary(More)