• Title/Summary/Keyword: Operation status

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A Management Strategy Evaluation of the Current TAC (Total Allowable Catch) Regulation in Korea: The Case of Chub Mackerel Scomber japonicus Fisheries (관리전략평가(Management Strategy Evaluation) 방법에 의한 현행 TAC (Total Allowable Catch) 의사결정 검토: 고등어(Scomber japonicus) 어업의 경우)

  • Kim, Doyul;Seo, Young Il;Hyun, Saang-Yoon
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.55 no.6
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    • pp.946-953
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    • 2022
  • Using the management strategy evaluation methods and data on the Korea chub mackerel Scomber japonicus where the state-space logistic production model is used as the operation and the estimation model respectivley, we examined the effects of both Dorn's rule, α and the buffer value for ABC (allowable biological catch), which are used by the Korea fishery managers for decision rules. We set scenarios that have different pairs of buffer and α values, which include those currently used in the management in Korea. Under each sceanario, we projected the fish population biomass until year 2050, during which ABC is determined in each year with the decision rule. We used three kinds of performance measures: (i) whether the biomass in 2050 is overfished; (ii) the average of annual yields over the simulation period; and (iii) the variability of annual yields over the period. We found that the current practice (buffer=0.9, and α = 0.05) resulted in the best performance in terms of avoiding the "overfished" status. However, the current practice failed to reach the maximum average of the annual yields and led to larger uncertainty in the annual yields.

Sound PSD Image based Tool Condition Monitoring using CNN in Machining Process (생산 공정에서 CNN을 이용한 음향 PSD 영상 기반 공구 상태 진단 기법)

  • Lee, Kyeong-Min
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.26 no.7
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    • pp.981-988
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    • 2022
  • The intelligent production plant called smart factories that apply information and communication technology (ICT) are collecting data in real time through various sensors. Recently, researches that effectively applying to these collected data have gained a lot of attention. This paper proposes a method for the tool condition monitoring based on the sound signal generated in machining process. First, it not only detects a fault tool, but also presents various tool states according to idle and active operation. The second, it's to represent the power spectrum of the sounds as images and apply some transformations on them in order to reveal, expose, and emphasize the health patterns that are hidden inside them. Finally, the contrast-enhanced PSD image obtained is diagnosed by using CNN. The results of the experiments demonstrate the high discrimination potential afforded by the proposed sound PSD image + CNN and show high diagnostic results according to the tool status.

Gluteal Region Reshaping of Massive Weight Loss Patients-A Decision-Making Strategy

  • Mahgoub, Mohamed Ali;Zeina, Ahmed Mahmoud;El-Din, Ahmed Mohamed Bahaa;El-Sabbagh, Ahmed Hassan;Bassetto, Franco;Vindigni, Vincenzo
    • Archives of Plastic Surgery
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    • v.49 no.3
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    • pp.289-295
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    • 2022
  • Background Massive weight loss (MWL) is a very common presentation that you may face as a plastic surgeon. Each patient has his own individual criteria, so, you should work according to a well-organized plan, especially when such cases have concerns about their gluteal area contour that were neglected before by many surgeons. A decision-making strategy was used to give a personalized treatment for targeting gluteal region reshaping of MWL patients. Methods This study considered all patients with MWL subjected to buttock reshaping. There was no randomization in treatment; there was a case-by-case assessment. We analyzed the features of the buttocks, the type of surgery performed, the outcomes, and the complications. Results Fifty two patients were included (41 females and 11 males), ages ranged between 21 and 66 years. Demographic data, preoperative body mass index (BMI), duration of surgery, type of surgery, and postoperative complications were collected. Statistically significant improvements were observed in gluteal ptosis and patient satisfaction grades. Conclusion Aesthetic improvement of the buttocks involves either augmentation or contouring that may be obtained by liposculpture, surgical lifting, or combination. Patients with MWL have high expectations and are often treated with multiple procedures. Thus, an easy strategic approach personalized on each patient to treat multiple adjacent areas in one operation is necessary. Adipose tissue distribution, gluteal skin status, and BMI were the main factors that can forcefully affect our plan to guarantee reduction of unpleasant results and complications and improve patient satisfaction.

Analysis of Safety Management Operations of Fire Risk Factors in Small-Scale Construction Sites (소규모 건설현장 화재 위험요인 안전관리 운영실태 분석)

  • Moon, Pil-Jae;Kong, Ha-Sung
    • The Journal of the Convergence on Culture Technology
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    • v.8 no.6
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    • pp.775-785
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    • 2022
  • By analyzing the operation status of fire safety management of small construction site workers, deriving problems, and suggesting improvement measures, this study was conducted to present practical basic data for their efficient use in the future, and the following conclusions were drawn. First, it was analyzed that small construction site workers are elderly in the age group of construction workers, have short construction skills, most of the jobs are working in the construction industry, and the employment type is non-regular workers. Second, the fire safety management improvement plan of small construction site workers is systematized, fire safety manager is deployed to manage fire risk, fire escape routes and emergency warning facilities are provided to inform all workers at the construction site. In addition, measures to reduce industrial accidents are needed through realistic evacuation training, fire VR training, and interesting educational programs.

Implementation of Git's Commit Message Complex Classification Model for Software Maintenance

  • Choi, Ji-Hoon;Kim, Joon-Yong;Park, Seong-Hyun
    • Journal of the Korea Society of Computer and Information
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    • v.27 no.11
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    • pp.131-138
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    • 2022
  • Git's commit message is closely related to the project life cycle, and by this characteristic, it can greatly contribute to cost reduction and improvement of work efficiency by identifying risk factors and project status of project operation activities. Among these related fields, there are many studies that classify commit messages as types of software maintenance, and the maximum accuracy among the studies is 87%. In this paper, the purpose of using a solution using the commit classification model is to design and implement a complex classification model that combines several models to increase the accuracy of the previously published models and increase the reliability of the model. In this paper, a dataset was constructed by extracting automated labeling and source changes and trained using the DistillBERT model. As a result of verification, reliability was secured by obtaining an F1 score of 95%, which is 8% higher than the maximum of 87% reported in previous studies. Using the results of this study, it is expected that the reliability of the model will be increased and it will be possible to apply it to solutions such as software and project management.

A Study on Records Management of the University Museum Experience Program (대학박물관 체험프로그램 기록관리 방안에 관한 연구)

  • Lee, Kyeong-hee;Kwon, Sun-young
    • Journal of Korean Society of Archives and Records Management
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    • v.22 no.3
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    • pp.1-19
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    • 2022
  • In the recent changes in the museum industry, one trend that can be observed is museums' attempt to expand their role scope from the collection and preservation of historically valuable materials to utilization and recreation through the introduction of the concept of an archive for museum data management and utilization. Data generated by the experience program at the university museum is expected to grow in size and increase the value of use, but there has been no area where records management for the experience program has been systematically established and operated. Therefore, this study conducted a survey on the operation status of domestic and foreign university museum experience programs and the person in charge of them. Based on the analysis of the results, it proposed a method for handling the records of the university museum experience program to systematically collect related records and manage them efficiently.

Perception on necessity to introduce public out-of-hours pharmacies and operation plan: A Gyeongsangbuk-do case (공공심야약국 도입 필요성에 대한 인식 및 운영방안: 경상북도 사례)

  • Oh, Nan Suk;Yoo, Wang-Keun;Lee, Iyn-Hyang
    • Korean Journal of Clinical Pharmacy
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    • v.32 no.2
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    • pp.93-105
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    • 2022
  • Objectives: This study aimed to identify the opinions of Gyeongsangbuk-do residents on out-of-hours (OOH) pharmacies and to examine the operating experiences of pharmacists who are operating OOH pharmacies in other areas. Methods: Cross-sectional survey was carried out for 1,000 Gyeongbuk residents employing a questionnaire via online or face-to-face, and 82 pharmacists who currently operate OOH pharmacies employing a postal questionnaire. Out of eighty-two, 46 pharmacists replied (response rate 56.1%). Results: As for the necessity of introducing OOH pharmacies in Gyeongsangbuk-do, 84.9% answered more than necessary. 86.1% favored the local government support for OOH pharmacies. The necessity of OOH pharmacies was highly evaluated among participants who experienced to be unable to use medicines or services in out of service hours, regardless of their characteristics or health condition. County residents consistently put a positive opinion for the necessity of OOH pharmacies if they have elderly family member(s), while city residents had significant differences across subgroups depending on their conditions (family members, household economics, health status, etc.). Almost all (95.7%) pharmacist participants highly evaluated the necessity of OOH pharmacies and the majority of them (63.0%) felt satisfied. However, 60.9% of participants have ever considered closing their OOH pharmacy business due to private, business management and professional reasons. Conclusion: This study made suggestions to address anticipated issues for the Gyeongbuk-style OOH pharmacy model.

Analysis of Closed School Utilization and Activation Factors as Urban-Rural Base Space (도농공존거점공간으로의 폐교 활용방안 및 활성화 요인 분석)

  • Koo, Hee-Dong;Bae, Seung-Jong;Kim, Dae-Sik
    • Journal of Korean Society of Rural Planning
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    • v.28 no.3
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    • pp.95-109
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    • 2022
  • This study attempted to suggest the factors that facilities that aim to exchange urban-rural coexistence base spaces with urban-rural areas should have. In order to derive factors, 15 literatures preceded by similar studies were investigated, and systematic classification was attempted. Finally, the factors for activating urban and rural base facilities were organized into 3 categories, 9 sectors, and 30 activation factors. The three major categories consisted of resources and facilities, content and programs, operational status. As a result of the AHP survey, in the survey area, which is a categories, resources and facilities composed of hardware factors originally possessed by the facility showed the highest score of 48.9. In the sectors, the convenience of facility use was 25.7 points, and the rich state of tangible and intangible resources was 13.3 points in order. In the sectors, income from paid experience programs at facilities was 8.3 points, physical accessibility to facilities was 8.2 points, and the type of areas where the facilities were located was 7.7 points in order. It showed high importance in the order of resources and facilities composed of hardware factors, content and programs composed of software factors, and manpower and operation composed of humanware factors. In general, it was shown that the physical factors of the place when using urban and rural base facilities were judged as the main factors.

Improving the Performance of Blood Transfusion Management Division (수혈관리실의 역할 수행에 따른 개선 효과)

  • Ho-Keun CHOI;Kyung-Suk CHOI
    • Korean Journal of Clinical Laboratory Science
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    • v.55 no.1
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    • pp.65-70
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    • 2023
  • The effect of improvement by keeping the former as the priority was examined through an evaluation of the role of the blood transfusion management (BTM) division. This division manages the status of blood for transfusion, evaluates the adequacy of blood transfusion (EABT), monitors and responds to the occurrence of transfusion-related side effects, and performs other tasks necessary for BTM. Although the establishment and operation of the BTM division can lead to the efficient evaluation of transfusion adequacy, there are disadvantages in that it takes time for EABT and it is difficult for the staff in charge of the BTM division to evaluate the adequacy of all the blood. In the future, it is essential to introduce a BTM division and committee specific to Korean patients to implement safe and appropriate BTM in medical institutions, and to assist medical institutions in training their personnel.

A Methodology on System Implementation for Road Monitoring and Management Based on Automated Driving Hazard Levels (위험도 기반 도로 모니터링 및 관리 시스템 구축 방안)

  • Kyuok Kim;Sang Soo Lee;SunA Cho
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.21 no.6
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    • pp.299-310
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    • 2022
  • The ability of an automated driving system is based on vehicle sensors, judgment and control algorithms, etc. The safety of automated driving system is highly related to the operational status of the road network and compliant road infrastructure. The safe operation of automated driving necessitates continuous monitoring to determine if the road and traffic conditions are suitable and safe. This paper presents a node and link system to build a road monitoring system by considering the ODD(Operational Design Domain) characteristics. Considering scalability, the design is based on the existing ITS standard node-link system, and a method for expressing the monitoring target as a node and a link is presented. We further present a technique to classify and manage hazard risk into five levels, and a method to utilize node and link information when searching for and controlling the optimal route. Furthermore, we introduce an example of system implementation based on the proposed node and link system for Sejong City.