• Title/Summary/Keyword: assessment strategies

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Seismic Nonlinear Damage Assessment and Retrofit Strategies for Existing Bridges with Isolation System using Retrofit Slate Function (비선형 내진 손상도 평가 및 보강상태함수를 이용한 기존교량의 내진 보강 전략)

  • Cho, Hyo-Nam;Choi, Hyun-Ho;Eom, Won-Seok;Shin, Man-Kyu
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.6 no.1
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    • pp.179-191
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    • 2002
  • This paper presents a systematic approach to the seismic nonlinear analysis and retrofit strategies for existing bridges with isolation system using retrofit slate function newly proposed in this study. A seismic retrofit scheme using sliding base isolation system was presented to reduce the seismic hazard for bridge structures. In this study, two types of isolation systems such as lead bearings and sliding isolators were used. The behavior of sliding isolators was modeled by a triaxial interaction model. And three types of earthquakes such as El Centro, San Fernando, and the artificial were used as earthquake ground excitations. Seismic response analyses of the bridge before and after retrofit were effectively carried out by using a three-dimensional nonlinear seismic analysis program, IDARC-Bridge. Also, this paper proposes a retrofit state function for easily representing the efficiency of a retrofit scheme.

Environmentally-Friendly Hospital Management : Case Studies in 3 University Hospitals (친환경 병원경영 : 3개 대학병원 사례를 중심으로)

  • Kang, Jung-Kyu;Seo, Young-Joon
    • The Korean Journal of Health Service Management
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    • v.5 no.2
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    • pp.199-208
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    • 2011
  • The purpose of this study is to investigate the strategies and the experiences of 3 university hospitals relevant to environmentally-friendly strategy in their hospitals and to find out the implication for spreading the environmentally-friendly hospital management to other Korean hospitals. The study was progressed from October to November 2010 through the in depth interview with middle manager of the hospitals. Interview items about environmentally-friendly hospital management were selected from ISO 14001, Korean Green Management Certification Scheme, Green Guide Operation Version 2.2 of GGHC, Eco-ChecklistTM, Self-Assessment Tool of "Practice Greenhealth" and some accreditation credits of LEED, BREEAM, GreenStar. The case study result implies that the following strategies are so critical to settle environmentally-friendly hospitals in Korea: 1)understanding about fundamental concept of environmentally-friendly hospital, 2)organizing green teams, 3)purchasing environmentally-friendly goods, 4)benchmarking other successful hospitals, 5)adopting easy & reasonable policy first, 6)managing accumulated data & performance about energy efficiency, and 7)educating the employee about environmentally-friendly hospitals strategies. Hospitals have to keep in pace with the change in government policy and scheme like as GHG & Energy Target Management System, Korean Green Management Certification Scheme, ESCO, and so on for achieving the successful environmentally-friendly hospitals.

Water utilities vulnerability assessment and adaption strategies for climate change in Jeju province (제주도 기후변화 관련 상수도시설 취약성 평가 및 적응대책)

  • Kim, Jinkeun
    • Journal of Korean Society of Water and Wastewater
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    • v.32 no.6
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    • pp.517-526
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    • 2018
  • Climate adaptation strategies for water utilities including 16 water treatment plants(WTPs) in Jeju were investigated. Drought, heat wave, and heavy rain were among the most significant climate factors affecting water utilities in Jeju. Heat wave increases water temperature, which in turn increases the concentration of algae, color, and odor materials. Some adaption strategies for the heat wave can be strengthening water monitoring and introducing advanced water treatments. Heavy rain increases raw water turbidity in surface water. The 7 WTPs that take raw water from streams or springs had a maximum turbidity of less than 50 NTU under heavy rain. However, due to concerns of turbidity spike in treated water, some WTPs discontinued intaking raw water when raw water turbidity increased more than 2 NTU. They instead received treated water from other WTPs which took groundwater for water supply. This happens because of the low skills of employees. Thus, there needs to be an increase in operator competency and upgrade of water facilities for the adaption of heavy rain. To improve adaption for the drought, there should be an increase in the capacity of intake facilities of surface water as well as a decrease in water loss. In addition, water consumption per person should be decreased.

Diagnosis of McKenzie Mechanical Syndromes for Patient with Low Back Pain : Focused on mechanical loading strategies (요통 환자를 위한 멕켄지의 역학적 증후군 진단 : 역학적 부하 전략을 중심으로)

  • Kim, Minhee
    • Archives of Orthopedic and Sports Physical Therapy
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    • v.14 no.2
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    • pp.109-115
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    • 2018
  • Purpose: McKenzie is a widely-used and conventional clinical therapeutic exercise for patients with mechanical lower back pain. It is a well-designed assessment and classification system for the spine. Main issue: Patients with mechanical lower back pain are classified into one of three mechanical syndromes (posture, dysfunction, or derangement syndrome) by mechanical loading strategies. These methods evaluate symptomatic and mechanical responses during repeated end-range movement and sustained postures. The goal of McKenzie mechanical syndrome diagnosis is to determine directional preferences. Directional preference is a phenomenon of preference for posture or movement in one direction, which reduces or centralizes pain. However, in Korea, there is a lack of awareness of basic McKenzie mechanical syndromes diagnostic concepts. Koreans tend to think of the McKenzie method as a simple lumbar extension exercise. However, an accurate diagnosis of a mechanical syndrome must precede the application of McKenzie exercise. Conclusions: Thus, in this study, I present a classification method of McKenzie mechanical syndrome diagnosis and clinical characteristics of each mechanical syndrome.

Knowledge Assessment of Teachers of Students with Autism Spectrum Disorder from Applied Behaviour Analysis Perspective

  • Saigh, Budor H.;Bagadood, Nizar H.
    • International Journal of Computer Science & Network Security
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    • v.22 no.1
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    • pp.288-294
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    • 2022
  • This study aims to assess the knowledge of teachers working with students with autism spectrum disorder (ASD) regarding applied behaviour analysis (ABA). The study was concerned with teachers' knowledge of ABA, its application in the classroom, barriers to its use and desired training opportunities and/or resources to enhance teacher application of ABA strategies in the classroom. Data were collected via an online survey completed by 190 teachers with students diagnosed with ASD in British schools. The results revealed overall knowledge of ABA strategies for classrooms, with only some teachers uninformed about the broad use and some key elements, and general familiarity with skills crucial for applying ABA. Actual knowledge of ABA was found to be high. In terms of application of ABA, the majority of the teachers employed a wide range of known strategies. A number of barrier to the application of ABA were noted including a lack of knowledge and training, a lack of administrative support and a lack of time and physical resources. Theoretical knowledge is crucial for practical applications; however, practical training was found to be important to ensure intervention efficacy.

Deep reinforcement learning for optimal life-cycle management of deteriorating regional bridges using double-deep Q-networks

  • Xiaoming, Lei;You, Dong
    • Smart Structures and Systems
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    • v.30 no.6
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    • pp.571-582
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    • 2022
  • Optimal life-cycle management is a challenging issue for deteriorating regional bridges. Due to the complexity of regional bridge structural conditions and a large number of inspection and maintenance actions, decision-makers generally choose traditional passive management strategies. They are less efficiency and cost-effectiveness. This paper suggests a deep reinforcement learning framework employing double-deep Q-networks (DDQNs) to improve the life-cycle management of deteriorating regional bridges to tackle these problems. It could produce optimal maintenance plans considering restrictions to maximize maintenance cost-effectiveness to the greatest extent possible. DDQNs method could handle the problem of the overestimation of Q-values in the Nature DQNs. This study also identifies regional bridge deterioration characteristics and the consequence of scheduled maintenance from years of inspection data. To validate the proposed method, a case study containing hundreds of bridges is used to develop optimal life-cycle management strategies. The optimization solutions recommend fewer replacement actions and prefer preventative repair actions when bridges are damaged or are expected to be damaged. By employing the optimal life-cycle regional maintenance strategies, the conditions of bridges can be controlled to a good level. Compared to the nature DQNs, DDQNs offer an optimized scheme containing fewer low-condition bridges and a more costeffective life-cycle management plan.

Adapting to the Unpredictable: Companies' Strategies with Business Continuity in the Pandemic Era

  • Choongik CHOI
    • East Asian Journal of Business Economics (EAJBE)
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    • v.12 no.1
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    • pp.23-33
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    • 2024
  • Purpose: This paper explores the nuanced approaches undertaken by private companies in formulating and implementing business continuity plans (BCPs) in response to the unprecedented challenges posed by the global COVID-19 pandemic. Research design, data, and methodology: Utilizing a mixed-methods research design, the study delves into the multifaceted strategies employed by private sector entities, ranging from risk assessment and remote work policies to supply chain diversification and employee well-being initiatives. Result: The findings contribute to a deeper understanding of the evolving landscape of business continuity planning during a pandemic, offering valuable insights for academia, industry practitioners, and policymakers. The research findings present a detailed account of how private companies have tailored their business continuity plans in response to the unique challenges posed by the pandemic. Conclusion: This academic exploration sheds light on the dynamic landscape of business continuity planning in private companies responding to the global pandemic. Insights into the effectiveness of remote work policies, supply chain diversification, employee safety measures, and financial strategies contribute to the understanding of best practices and areas requiring further attention. These recommendations aim to inform future business continuity planning efforts, enhance organizational resilience, and mitigate the impact of global health crises on private sector operations.

Implementation of Decision Making Process for Long-Term Preservation Strategy of Electronic Records (전자기록의 장기보존 전략을 위한 의사결정 프로세스 구현)

  • Cha, Hyun Chul
    • Journal of Korea Multimedia Society
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    • v.23 no.9
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    • pp.1201-1209
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    • 2020
  • Based on the risk factor evaluation for the file format, this paper defines the procedures for presenting the long-term preservation plan for that format and the technical information registry necessary for building the system. This is a procedure to perform a risk assessment for the format, evaluate the risk, and select a long-term preservation strategy based on the information registered in the registry and information on the external signature and internal signature of the electronic record. We also reviewed the criteria for selecting appropriate long-term preservation strategies in the process and provided the criteria for adopting each detailed strategy of migration and emulation, which are long-term preservation strategies. And we implemented this process as a long-term preservation decision support system. This system can be used to provide guidelines for the maintenance, management, service and long-term preservation of information resources of electronic records in public institutions such as National Archives of Korea and Libraries.

Development of a Platform to resolve the Mismatch between Job and Competence in Recruitment Market (채용시장 직무와 역량 간 미스매치 해소를 위한 플랫폼 개발)

  • Kim, Jongho
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.12 no.3
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    • pp.11-24
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    • 2016
  • The purpose of this study is to develop a recruiting platform resolving the mismatch between corporate job and job finder's competence in recruitment market. For this, we investigated technological trends and limitation on recruit platform. Based on the findings, this study investigates the trends and directions related to recruiting platform evolution and identified critical success factors and development strategies for successful development of recruiting platform. Two development strategies include employment of online resume and construction of database assessing job finder's competence. We also proposed target system architecture incorporating job database, competency assessment form, capability oriented resume. To analyze user requirement national competency standards and core job capability evaluation model were analyzed. Next, we designed integrated database, user interfaces, and dynamic functionalities using the forms developed in earlier stage. Finally, we assessed the fidelity of form item, integrity of database, and the usability of interface to evaluate the effectiveness of the system.

Physical Therapy Strategies for the Patient With Hysterical Motor Paralysis Disorder : A Case Report and Literature Review

  • Oh, Duck-Won;Yoo, Eun-Young
    • Physical Therapy Korea
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    • v.11 no.4
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    • pp.43-49
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    • 2004
  • It is not common in rehabilitation situation to encounter patients exhibiting paralysis or other disabilities which have no apparent organic basis. Even without organic causes for their signs and symptoms these patients often require comprehensive treatment and management. Patients with conversion disorder often pose particular difficulties because of diagnostic confusion and the lack of therapeutic strategies for rehabilitation management. We feel that systematic functional rehabilitation is helpful in resolving symptom and recovering normal function in the patient suffering from conversion disorder since it provides motivation and reduces reinforcements which contribute to sustained disabled state. This report describes the patient with hysterical motor paralysis who is successfully treated with structured physical therapy. The objectives of this report are to provide therapeutic guidelines for physical therapy and to emphasize the role of physical therapist in the assessment and treatment of hysterical paralysis.

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