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Joint Replenishment and Delivery Problem with Resource Constraint for Deteriorating Item
Chengyan Li,Jun Gao,Chuang Wang 보안공학연구지원센터 2016 International Journal of Multimedia and Ubiquitous Vol.11 No.2
The joint replenishment and delivery model with deterministic resource restriction for deteriorating item is developed. The model is formulated as cost minimization problem, including the ordering cost, the inventory holding cost, the transportation cost, the customer waiting cost and the deterioration cost. Differential evolution (DE) algorithm is proposed to solve the model. Numerical illustrations of the model and algorithm are presented and the sensitivity analysis with respect to deterioration rate of item is performed. The comparison between DE and genetic algorithm (GA) for solving the model are also made.
Li Chengyan,Gao Jun,Zhang Tianwei,Wang Xiaotian 보안공학연구지원센터 2015 International Journal of Hybrid Information Techno Vol.8 No.5
The joint replenishment problem with deterministic resource restriction is considered. We present a differential evolution (DE) algorithm that uses indirect grouping strategy to solve constrained joint replenishment. The procedure and structure of the DE algorithm is proposed. Extensive computational experiments are performed to compare the performances of the DE algorithm with results of genetic algorithm (GA) and heuristic algorithm CRAND. The experimental results indicate that the DE algorithm performs relative to CRAND and superior to GA.
The Research and Implementation of Temporal Quasi-order Data Index
Xiuqin Deng,Hongyan Xing,Chengyan Fang,Xiaoping Ye 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.1
This study proposed a quasi-order-based temporal data structure (QOTDS) which differed from conventional, algebraic data management models. Based on this QOTDS, a temporal data index called the temporal quasi-order index (TQOindex) was established. Firstly, the study proposed the concepts of temporal quasi-order (TQO) and linear order partitioning (LOP) of time period sets and discussed the construction algorithm of LOP and the optimum (minimum) properties. On this basis, a temporal data structure was established based on LOP. This structure realized the set-at-a-time data operation-like relational data structure and improved the inquiry efficiency by using multiple threads. Subsequently, in the structural framework of TQO, we discussed the temporal data index (TQOindex) based on quasi-order extensions. This index was effectively applicable to various conventional database platforms depending on the disk (external memory)-based data management and also to big data dynamic index technology relying on the incremental updating mechanism. Finally, a corresponding experimental simulation and comparative evaluation were designed to verify the feasibility and effectiveness of TQOindex. Research and experiments showed that QOTDS were effective at temporal inquiry and management in cases involving the temporal processing and integration mechanisms in new data, such as semantic data, XML data, and moving object data.
Olive Leaf Extract Facilitates Healing of Experimental Cartilaginous Injuries in Rabbits
Dezheng Gong,Chengyan Geng,Liping Jiang,Lihui Wang,Hiroyuki Yoshimuram,Laifu Zhong 한국식품영양과학회 2011 Journal of medicinal food Vol.14 No.3
We investigated the restorative effect of orally administered olive leaf extract (OLE) on experimentally produced cartilaginous injuries in rabbits. In total, three holes in the left stifle joint, including one in the medial trochlear ridge and two in the trochlear sulcus (proximal and distal) of articular cartilage, were prepared surgically using a drill. For the control group only tap water alone was administered daily, and for the OLE group a water-based solution of OLE (500 mg/kg/day) was administered daily. The injured areas were observed macroscopically and histologically at 3 weeks after the operation. The results indicate that OLE facilitated healing of the three holes and increased the weight of the biceps femoris muscle. Histological examination revealed that in the OLE group, matured cartilage tissues and connective tissues were mixed with regenerated or maturing cartilage tissues with massive proliferation in the injured parts, around which the proliferation of undifferentiated blast cells and the tissue with cartilage substrates were observed. The histological score of the OLE group was significantly lower than that of the control group. The percentage of proliferating cell nuclear antigen–positive cartilage cells in the OLE group was higher than in the control group. Mean density of the restored area observed with Safranin O staining was higher in the OLE group than in the control group. Therefore, OLE is effective for enhancing the healing of cartilaginous injuries. OLE may also have a beneficial effect of slowing and reducing the pathogenesis of degenerative joint diseases in humans.