[Objectives] This study was conducted to use the feeding value of wolfberry branches and to provide a basis for the rational use of its active ingredients and nutrients and the development of new feed resources. [Meth...[Objectives] This study was conducted to use the feeding value of wolfberry branches and to provide a basis for the rational use of its active ingredients and nutrients and the development of new feed resources. [Methods] Wolfberry branches and whole-plant corn were used to make mixed silage of wolfberry branches, which replaced different proportions of whole-plant corn silage for feeding hybrid mutton sheep, and the feeding effect of the mixed silage of wolfberry branches on hybrid mutton sheep was analyzed, which provides a technical basis for rational utilization of mulberry resources to ruminants. A single factor feeding comparison experiment was carried out. 32 hybrid mutton sheep of 8 months old with conform gender, age, body weight, physiological state and feeding management level were selected and divided into two groups, 16 in each group. [Results] The gross output value of weight gain of the experimental group was 18.06 yuan, which was higher than the CK(12.97 yuan) by 5.09 yuan. [Conclusions] The addition of the mixed silage of wolfberry branches to the diet had a positive effect on the increase of the weight gain of the hybrid mutton sheep and the reduction of the feed conversion ratio compared with the single whole-plant corn silage.展开更多
[Objectives] This study was conducted to investigate the effect of mixed silage of mulberry branches and leaves on the production performance of Tan Han hybrid mutton sheep and explore the feasibility in production. [...[Objectives] This study was conducted to investigate the effect of mixed silage of mulberry branches and leaves on the production performance of Tan Han hybrid mutton sheep and explore the feasibility in production. [Methods] Twenty-six Tan Han hybrid mutton sheep were selected and divided into two groups, 13 in each group. The experimental group was fed with the mixed silage and the control group(CK) was fed with whole-plant corn silage. [Results] The average daily weight gain per sheep of the experimental group was 9.2% higher than that of the CK(P<0.05), and the feed conversion ratio was decreased by 6.98%(P<0.05). The average daily weight gain per sheep in the 30 d improved the gross profit by 7.75 yuan, which meant an increase of 16.32%. [Conclusions] The mulberry mixed silage is feasible in the production, and it could significantly improve the production performance of the hybrid mutton sheep.展开更多
Although it is common to eliminate the singularity of parallel mechanism by adding the branched chain with actuation redundancy, there is no theory and method for the configuration synthesis of the branched chain with...Although it is common to eliminate the singularity of parallel mechanism by adding the branched chain with actuation redundancy, there is no theory and method for the configuration synthesis of the branched chain with actuation redundancy in parallel mechanism. Branched chains with actuation redundancy are synthesized for eliminating interior singularity of 3-translational and 1-rotational（3T1R） parallel mechanisms. Guided by the discriminance method of hybrid screw group according to Grassmann line geometry, all the possibilities are listed for the occurrence of interior singularities in 3T1R parallel mechanism. Based on the linear relevance of screw system and the principles of eliminating parallel mechanism singularity with actuation redundancy, different types of branched chains with actuation redundancy are synthesized systematically to indicate the layout and the number of the branched chainsinterior with actuation redundancy. A general method is proposed for the configuration synthesis of the branched chains with actuation redundancy of the redundant parallel mechanism, and it builds a solid foundation for the subsequent performance optimization of the redundant actuation parallel mechanism.展开更多
It is shown that when backorders, setup times and dynamic demand are included in capacitated lot sizing problem, the resulting classical formulation and one of the transportation formulations of the problem (referred ...It is shown that when backorders, setup times and dynamic demand are included in capacitated lot sizing problem, the resulting classical formulation and one of the transportation formulations of the problem (referred to as CLSP_BS) are equivalent. And it is shown that both the formulations are “weak” formulations (as opposed to “strong” formulation). The other transportation version is a strong formulation of CLSP_BS. Extensive computational studies are presented for medium and large sized problems. In case of medium-sized problems, strong formulation produces better LP bounds, and takes lesser number of branch-and-bound (B&B) nodes and less CPU time to solve the problem optimally. However for large-sized problems strong formulation takes more time to solve the problem optimally, defeating the benefit of strength of bounds. This essentially is because of excessive increase in the number of constraints for the large sized problems. Hybrid formulations are proposed where only few most promising strong constraints are added to the weak formulation. Hybrid formulation emerges as the best performer against the strong and weak formulations. This concept of hybrid formulation can efficiently solve a variety of complex real life large-sized problems.展开更多
现有的分支预测模型无法完全准确预测处理器中各种指令的行为,导致处理效率受限。为此提出了两种混合预测解决方案,旨在结合多种分支预测模型,以提高预测的准确性和处理器的执行效率。将TAGE(tagged geometric history length)分支预测...现有的分支预测模型无法完全准确预测处理器中各种指令的行为,导致处理效率受限。为此提出了两种混合预测解决方案,旨在结合多种分支预测模型,以提高预测的准确性和处理器的执行效率。将TAGE(tagged geometric history length)分支预测模型与BATAGE(Bayesian tagged geometric history length)分支预测模型的预测结果转交Hybrid模型。在预测阶段中,Hybrid模型会根据TAGE和BATAGE的历史表现去选择表现最佳分支预测模型的预测结果。而在更新阶段中,Hybrid模型会根据设计的混合预测策略对需要更新条目的饱和计数器进行更新。在CBP(championship branch prediction)软件仿真平台提供的440个测试程序上进行实验,实验结果表明:与多种最新主流分支预测模型相比,两种混合预测解决方案的预测错误率均低于它们。该研究为预测所有指令模式行为问题提供了有效解决方案。在实际CPU的分支指令预测,该研究提供了一些实用价值。展开更多
基金Supported by Ningxia Key R&D Program(2019BBF02016)Special Fund for Agricultural Science and Technology Independent Innovation of Ningxia Academy of Agriculture and Forestry Sciences
文摘[Objectives] This study was conducted to use the feeding value of wolfberry branches and to provide a basis for the rational use of its active ingredients and nutrients and the development of new feed resources. [Methods] Wolfberry branches and whole-plant corn were used to make mixed silage of wolfberry branches, which replaced different proportions of whole-plant corn silage for feeding hybrid mutton sheep, and the feeding effect of the mixed silage of wolfberry branches on hybrid mutton sheep was analyzed, which provides a technical basis for rational utilization of mulberry resources to ruminants. A single factor feeding comparison experiment was carried out. 32 hybrid mutton sheep of 8 months old with conform gender, age, body weight, physiological state and feeding management level were selected and divided into two groups, 16 in each group. [Results] The gross output value of weight gain of the experimental group was 18.06 yuan, which was higher than the CK(12.97 yuan) by 5.09 yuan. [Conclusions] The addition of the mixed silage of wolfberry branches to the diet had a positive effect on the increase of the weight gain of the hybrid mutton sheep and the reduction of the feed conversion ratio compared with the single whole-plant corn silage.
基金Supported by Ningxia Key R&D Program(2019BBF02016)Special Fund for Agricultural Science and Technology Independent Innovation of Ningxia Academy of Agriculture and Forestry Sciences
文摘[Objectives] This study was conducted to investigate the effect of mixed silage of mulberry branches and leaves on the production performance of Tan Han hybrid mutton sheep and explore the feasibility in production. [Methods] Twenty-six Tan Han hybrid mutton sheep were selected and divided into two groups, 13 in each group. The experimental group was fed with the mixed silage and the control group(CK) was fed with whole-plant corn silage. [Results] The average daily weight gain per sheep of the experimental group was 9.2% higher than that of the CK(P<0.05), and the feed conversion ratio was decreased by 6.98%(P<0.05). The average daily weight gain per sheep in the 30 d improved the gross profit by 7.75 yuan, which meant an increase of 16.32%. [Conclusions] The mulberry mixed silage is feasible in the production, and it could significantly improve the production performance of the hybrid mutton sheep.
基金Supported by Research Fund for the Doctoral Program of Higher Education,China(Grant No.20131333110008)
文摘Although it is common to eliminate the singularity of parallel mechanism by adding the branched chain with actuation redundancy, there is no theory and method for the configuration synthesis of the branched chain with actuation redundancy in parallel mechanism. Branched chains with actuation redundancy are synthesized for eliminating interior singularity of 3-translational and 1-rotational（3T1R） parallel mechanisms. Guided by the discriminance method of hybrid screw group according to Grassmann line geometry, all the possibilities are listed for the occurrence of interior singularities in 3T1R parallel mechanism. Based on the linear relevance of screw system and the principles of eliminating parallel mechanism singularity with actuation redundancy, different types of branched chains with actuation redundancy are synthesized systematically to indicate the layout and the number of the branched chainsinterior with actuation redundancy. A general method is proposed for the configuration synthesis of the branched chains with actuation redundancy of the redundant parallel mechanism, and it builds a solid foundation for the subsequent performance optimization of the redundant actuation parallel mechanism.
文摘It is shown that when backorders, setup times and dynamic demand are included in capacitated lot sizing problem, the resulting classical formulation and one of the transportation formulations of the problem (referred to as CLSP_BS) are equivalent. And it is shown that both the formulations are “weak” formulations (as opposed to “strong” formulation). The other transportation version is a strong formulation of CLSP_BS. Extensive computational studies are presented for medium and large sized problems. In case of medium-sized problems, strong formulation produces better LP bounds, and takes lesser number of branch-and-bound (B&B) nodes and less CPU time to solve the problem optimally. However for large-sized problems strong formulation takes more time to solve the problem optimally, defeating the benefit of strength of bounds. This essentially is because of excessive increase in the number of constraints for the large sized problems. Hybrid formulations are proposed where only few most promising strong constraints are added to the weak formulation. Hybrid formulation emerges as the best performer against the strong and weak formulations. This concept of hybrid formulation can efficiently solve a variety of complex real life large-sized problems.
文摘现有的分支预测模型无法完全准确预测处理器中各种指令的行为,导致处理效率受限。为此提出了两种混合预测解决方案,旨在结合多种分支预测模型,以提高预测的准确性和处理器的执行效率。将TAGE(tagged geometric history length)分支预测模型与BATAGE(Bayesian tagged geometric history length)分支预测模型的预测结果转交Hybrid模型。在预测阶段中,Hybrid模型会根据TAGE和BATAGE的历史表现去选择表现最佳分支预测模型的预测结果。而在更新阶段中,Hybrid模型会根据设计的混合预测策略对需要更新条目的饱和计数器进行更新。在CBP(championship branch prediction)软件仿真平台提供的440个测试程序上进行实验,实验结果表明:与多种最新主流分支预测模型相比,两种混合预测解决方案的预测错误率均低于它们。该研究为预测所有指令模式行为问题提供了有效解决方案。在实际CPU的分支指令预测,该研究提供了一些实用价值。
文摘随着大量直流电源和负荷的接入,交直流混合的配电网技术已成为未来配电网的发展趋势.然而,源荷不确定性及可调度设备的类型多样化给配电网调度带来了巨大的挑战.本文提出了基于分支决斗深度强化网络(branching dueling Q-network,BDQ)和软演员-评论家(soft actor critic,SAC)双智能体深度强化学习的交直流配电网调度方法.该方法首先将经济调度问题与两智能体的动作、奖励、状态相结合,建立经济调度的马尔可夫决策过程,并分别基于BDQ和SAC方法设置两个智能体,其中,BDQ智能体用于控制配电网中离散动作设备,SAC智能体用于控制连续动作设备.然后,通过集中训练分散执行的方式,两智能体与环境进行交互,进行离线训练.最后,固定智能体的参数,进行在线调度.该方法的优势在于采用双智能体能够同时控制离散动作设备电容器组、载调压变压器和连续动作设备变流器、储能,同时通过对双智能体的集中训练,可以自适应源荷的不确定性.改进的IEEE33节点交直流配电网算例测试验证了所提方法的有效性.
