Based on the current situation of the operation and maintenance management of the pilot base in many chemical parks in China,this paper conducts an in-depth exploration of the operation and maintenance management and ...Based on the current situation of the operation and maintenance management of the pilot base in many chemical parks in China,this paper conducts an in-depth exploration of the operation and maintenance management and innovation mode of the pilot base from the aspects of the evaluation of the pilot project entering the park,safety and environmental protection supervision,pilot mode,and industrialization mode of the pilot test results,so as to provide solutions for accelerating the process and industrialization of the pilot project and realizing the innovation value of the pilot base.展开更多
In view of the problem that the practical teaching in engineering colleges is out of line with the needs of enterprises, this paper probes into the practical teaching model based on the pilot-scale industry-university...In view of the problem that the practical teaching in engineering colleges is out of line with the needs of enterprises, this paper probes into the practical teaching model based on the pilot-scale industry-university cooperation base. Through the exploration of the practical teaching mode of industry-university cooperation with the pilot-scale base as the core, the students' learning enthusiasm, practical ability, innovative thinking, professional quality and other aspects have been greatly improved, which meets the current demand of enterprises for applied engineering talents and has strong employment competitiveness.展开更多
On June 21, the presentation ceremony for China Home textile Color Application Pilot Base took place in Rui’an Municipal Conference Center of Zhejiang province. Distinguish vips, like Mr. Yang Donghui, Vice Preside...On June 21, the presentation ceremony for China Home textile Color Application Pilot Base took place in Rui’an Municipal Conference Center of Zhejiang province. Distinguish vips, like Mr. Yang Donghui, Vice President of China National Textile and展开更多
How to obtain accurate channel state information(CSI)at the transmitter with less pilot overhead for frequency division duplexing(FDD) massive multiple-input multiple-output(MIMO)system is a challenging issue due to t...How to obtain accurate channel state information(CSI)at the transmitter with less pilot overhead for frequency division duplexing(FDD) massive multiple-input multiple-output(MIMO)system is a challenging issue due to the large number of antennas. To reduce the overwhelming pilot overhead, a hybrid orthogonal and non-orthogonal pilot distribution at the base station(BS),which is a generalization of the existing pilot distribution scheme,is proposed by exploiting the common sparsity of channel due to the compact antenna arrangement. Then the block sparsity for antennas with hybrid pilot distribution is derived respectively and can be used to obtain channel impulse response. By employing the theoretical analysis of block sparse recovery, the total coherence criterion is proposed to optimize the sensing matrix composed by orthogonal pilots. Due to the huge complexity of optimal pilot acquisition, a genetic algorithm based pilot allocation(GAPA) algorithm is proposed to acquire optimal pilot distribution locations with fast convergence. Furthermore, the Cramer Rao lower bound is derived for non-orthogonal pilot-based channel estimation and can be asymptotically approached by the prior support set, especially when the optimized pilot is employed.展开更多
文摘Based on the current situation of the operation and maintenance management of the pilot base in many chemical parks in China,this paper conducts an in-depth exploration of the operation and maintenance management and innovation mode of the pilot base from the aspects of the evaluation of the pilot project entering the park,safety and environmental protection supervision,pilot mode,and industrialization mode of the pilot test results,so as to provide solutions for accelerating the process and industrialization of the pilot project and realizing the innovation value of the pilot base.
文摘In view of the problem that the practical teaching in engineering colleges is out of line with the needs of enterprises, this paper probes into the practical teaching model based on the pilot-scale industry-university cooperation base. Through the exploration of the practical teaching mode of industry-university cooperation with the pilot-scale base as the core, the students' learning enthusiasm, practical ability, innovative thinking, professional quality and other aspects have been greatly improved, which meets the current demand of enterprises for applied engineering talents and has strong employment competitiveness.
文摘On June 21, the presentation ceremony for China Home textile Color Application Pilot Base took place in Rui’an Municipal Conference Center of Zhejiang province. Distinguish vips, like Mr. Yang Donghui, Vice President of China National Textile and
基金supported by the National Natural Science Foundation of China(61671176 61671173)the Fundamental Research Funds for the Center Universities(HIT.MKSTISP.2016 13)
文摘How to obtain accurate channel state information(CSI)at the transmitter with less pilot overhead for frequency division duplexing(FDD) massive multiple-input multiple-output(MIMO)system is a challenging issue due to the large number of antennas. To reduce the overwhelming pilot overhead, a hybrid orthogonal and non-orthogonal pilot distribution at the base station(BS),which is a generalization of the existing pilot distribution scheme,is proposed by exploiting the common sparsity of channel due to the compact antenna arrangement. Then the block sparsity for antennas with hybrid pilot distribution is derived respectively and can be used to obtain channel impulse response. By employing the theoretical analysis of block sparse recovery, the total coherence criterion is proposed to optimize the sensing matrix composed by orthogonal pilots. Due to the huge complexity of optimal pilot acquisition, a genetic algorithm based pilot allocation(GAPA) algorithm is proposed to acquire optimal pilot distribution locations with fast convergence. Furthermore, the Cramer Rao lower bound is derived for non-orthogonal pilot-based channel estimation and can be asymptotically approached by the prior support set, especially when the optimized pilot is employed.
