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Safety Ontology Modeling and Verification on MIS of Ship-Building and Repairing Enterprise
( Yumei Wu ),( Zhen Li ),( Lanjie Zhao ),( Zhengwei Yu ),( Hong Miao ) 한국인터넷정보학회 2021 KSII Transactions on Internet and Information Syst Vol.15 No.4
Shipbuilding and repairing enterprise has the characteristics of many hazards and accidents. Therefore, the safety management ability of shipbuilding and repairing MIS (management information system) must be effectively guaranteed. The verification on safety management is the necessary measure to ensure and improve the safety management ability of MIS. Safety verification can not only increase the safety of MIS, but also make early warning of potential risks in management to avoid the accidents. Based on the authoritative standards in the field of safety in shipbuilding and repairing enterprise, this paper applied modeling and verification method based on ontology to safety verification of MIS, extracted the concepts and associations from related safety standards to construct axiom set to support safety verification on MIS of shipbuilding and repairing enterprise. Then, this paper developed the corresponding safety ontology modeling and verification tool-SOMVT. By the application and comparison of two examples, this paper effectively verified the safety of MIS to prove the modeling method and the SOMVT can improve the safety of MIS in a much more effective and stable way to traditional manual analysis.
오옥매(Wu Yumei) 가천대학교 아시아문화연구소 2006 아시아문화연구 Vol.10 No.-
This article examined a way of using po?osa in the Pyojunkukeodaesajeon(표준국어대사전) which is compiled by kuklipkukeoyeonkuwon(국립국어연구원). The po?osa is a sort of postposition word. The kuklipkukeoyeonkuwon is a research institution for Korean and Pyojunkukeodaesejeon is a Korean dictionary with 500,000 entries. A dictionary's text structure can be divided into two parts - macrostructure and microstructure. This study examined a way of using po?osa in the Pyojunkukeodaessjeon from two points of text structure and pointed out the problem with po?osa description. From the point of macrostructure, entry word of po?osa, manner of it's presentation, criteria po?osa entries are selected, manner of a homonym and polysemy's description are examined. The entire number of po?osa listed in Pyojunkukeodaesajeon is 72. I used three criteria for selecting po?osa; 1) definition of po?osa, 2) sequential structure of 'po?osa + po?osa', 3) variation of po?osa. The Pyojunkukeodaesajeon has unity in description of the homonym and polysemy but it has many problems with the other part of description. From the point of microstructure, the information of part of speech, grammatical information, description of meaning, etymology are examined. In the presentation of grammatical information, the consistency of using terms is needed. In the description of meaning, I proposed supplement of 'po?osa + po?osa structure's meaning. The etymological information is in needed of supplement.
Zhiyi Wu,Yumei Wen,Ping Li,Jin Yang,Xianzhi Dai 한국자기학회 2011 Journal of Magnetics Vol.16 No.2
The magnetostrictive material is magnetized in magnetic field and produces a nonuniform demagnetizing field inside and outside it. The demagnetization is decided by the permeability of magnetostrictive material and its size. The magnetoelectric performances are determined by the synthesis of the applied and demagnetizing fields. An analytical model is proposed to predict the magnetoelectric voltage coefficient (MEVC) of magnetostrictive/piezoelectric laminate composite using equivalent circuit method, in which the nonuniform demagnetizing field is taken into account. The theoretical and experimental results indicate that the MEVC is positively connected with the permeability and the piezomagnetic coefficient of magnetostrictive material. To obtain the maximum MEVC, both the permeability and the piezomagnetic coefficient of magnetostrictive material should be taken into account in selecting the suitable magnetostrictive material.
BLOW-UP AND GLOBAL SOLUTIONS FOR SOME PARABOLIC SYSTEMS UNDER NONLINEAR BOUNDARY CONDITIONS
Guo, Limin,Liu, Lishan,Wu, Yonghong,Zou, Yumei Korean Mathematical Society 2019 대한수학회지 Vol.56 No.4
In this paper, blows-up and global solutions for a class of nonlinear divergence form parabolic equations with the abstract form of $({\varrho}(u))_t$ and time dependent coefficients are considered. The conditions are established for the existence of a solution globally and also the conditions are established for the blow up of the solution at some finite time. Moreover, the lower bound and upper bound of the blow-up time are derived if blow-up occurs.
Parametrial involvement and decreased survival of women with FIGO stage IIIC1 cervical cancer
Hong Chang,Ming Wang,Yang Liu,Yumei Wu 대한부인종양학회 2023 Journal of Gynecologic Oncology Vol.34 No.4
Objective: To evaluate the effect of parametrial status on FIGO stage IIIC1 cervical cancer. Methods: A retrospective study was conducted from June 1, 2009, to December 31, 2018.Patients with stage IIIC1 cervical cancer were included and stratified into two groups based on the status of parametrial involvement. Patients with IIIA or IIIB were selected as control. The primary outcomes are overall survival (OS) and progression-free survival (PFS). Results: Of 586 patients included, 377 patients were stage IIIC1 (group A) and 209 patients were stage IIIA/IIIB (group B). Compared control, stage IIIC1 was not associated with worse 5-year OS or PFS. Of the stage IIIC1 patients, 58.1% without parametrial involvement (group A1) and 41.9% with parametrial involvement (group A2). Patients of group A1 showed a better prognosis than group A2 both in 5-year rates of OS (79.09% vs. 59.43%, p<0.001) and PFS (73.27% vs. 56.95%, p=0.0002). However, patients of group A1 showed a better prognosis than group B both in OS and PFS. Also, patients of group A2 showed a comparable prognosis to group B both in OS and PFS. Conclusion: Reclassification of stage IIIC1 cervical cancer without parametrial into a new stage is more appropriate and improves discriminatory ability.