• Title/Summary/Keyword: Mitigation strategies

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Intellectual Capital and Its Role in Crisis Management During the COVID-19 Pandemic: An Empirical Study in Kuwait

  • ALNASSAFI, Fahd Marzouq
    • The Journal of Asian Finance, Economics and Business
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    • v.9 no.3
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    • pp.113-121
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    • 2022
  • The study aimed to assess the availability of intellectual capital in Kuwaiti private universities in terms of its three dimensions (human capital, structural capital, and relational capital), as well as its role in crisis management (crisis preparedness, crisis mitigation, confrontation, and response to the crisis, and learning from the crisis) during the COVID-19 pandemic. Members of the boards of trustees, university presidents, their deputies, and deans of the colleges were chosen as respondents to this study from a sample of (8) private universities in Kuwait, with the sampling unit consisting of leaders in these universities. The study revealed that all dimensions of intellectual capital play a statistically significant impact in executing crisis management during the COVID-19 pandemic at Kuwaiti private universities after conducting the data analysis process. The study concluded that universities should pay attention to intellectual capital in all its dimensions (human capital, structural capital, and relational capital) because of its role in improving their ability to implement crisis management strategies and strive to improve their capabilities to face crises by implementing crisis management strategies.

A Study on Variation and Development of Railroad Station Zones on Incheon Metro Train Rail Line 1 (인천 1호선전철 역세권의 변화 및 개발에 관한 연구)

  • Park, Man-Hee;Ahn, Kyung-Su
    • Journal of the Korean Society of Hazard Mitigation
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    • v.9 no.3
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    • pp.27-39
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    • 2009
  • The 1st Incheon Rapid Transit Line opened in October, 1999. However, the current development plans for areas near stations do not involve plans for the both urban planning and transportation together. As the focus on only the aspect of installing a new transportation mode, the developments even make the problems such as reckless development and traffic congestion gets worse. It is required to analyse status of the current land uses and land use plans in the future and consider distribution of functions of the areas near stations and aims of development plans so as to harmonize the functions of each region in view of making balance in the whole city. The aims of developments of areas near stations has to focus on the study follows steps to find and suggest aims and strategies for the revitalization plan for areas near stations with considering the both transportation and land uses together. The plans for the areas near stations of the Incheon 1st Rapid Transit Line are analysed and then the features and rational strategies are derived. The impact is analysed as applying the development strategies derived from the step into the areas near the stations of Incheon 1st Rapid Transit line.

Semiactive Control for Structural Vibration Mitigation (구조물 진동 저감을 위한 반능동 제어)

  • Changki Mo;Jaesoo Lee
    • Journal of KSNVE
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    • v.11 no.1
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    • pp.96-103
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    • 2001
  • Past research has repeatedly demonstrated the fact that hydraulic semiactive systems, if operated Properly, can provide levels of control authority in structural vibration control systems that are comparable to a fully active hydraulic damper. The performance of the semiactive system when used to provide vibration mitigation for a laboratory test structure is described in this paper Numerical and experimental verification of the effectiveness of the proposed bistate controller which relies on a Lyapunov approach that seeks to dissipate the energy of the system is also presented. The results based on the bistate control are compared with those of two different control strategies. The work indicates that hydraulic semiactive actuator provides a reliable, and inexpensive means of achieving structural control.

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Harmonic Effects and Consideration in Power Converter and Component (전력변환장치의 고조파 영향 및 연구동향)

  • Cho Sung-Joon;Kim Tae-Wan;Woo Myung-Ho;Seo Kwang-Duk
    • Proceedings of the KIPE Conference
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    • 2001.07a
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    • pp.467-470
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    • 2001
  • Power electronic converters generate the harmonic voltage and current, and these harmonics have the harmful effects on the various components. For example, passive components such as capacitor and inductor, transformer, motor and other components are mainly affected in the power electronic system. Thus, the design and manufacturing of the power converters, which have the harmonic-free or mitigation strategies, are required. In particular, the lifetime and durability of these components are main requirement for enhancing the overall stability of the system. So, in this paper, the harmonics-related problems to the neighbouring components and mitigation research trends are presented.

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Application of dithering control for the railway wheel squealing noise mitigation

  • Marjani, Seyed Rahim;Younesian, Davood
    • Smart Structures and Systems
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    • v.23 no.4
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    • pp.347-357
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    • 2019
  • A new methodology for mitigation of the wheel squealing is proposed and investigated based on the dithering control. The idea can be applied in railway lines particularly in urban areas. The idea is clearly presented, and applied to a validated model. A full-scale model including the vehicle, curved track and wheel/rail contact is developed in the time domain to analyze the possibility and level of wheel squeal noise. Comparing the numerical results with a field test, the model is validated in different levels namely i) occurrence, ii) squealing frequency and iii) noise level. Two different approaches are proposed a) dithering of the wheel with piezoelectric patches and b) dithering of the rail with piezoelectric stacks. The noise level as well as the wheel responses is compared after applying the control strategy. A parametric study is carried out and effect of the dithering voltage and frequency on the squealing noise is investigated. It is found that both the strategies perform quite effectively within the saturating threshold of piezoelectric actuators.

A Review on Emission and Mitigation of N2O in Biological Wastewater Treatment (생물학적 하폐수처리과정에서 N2O 배출 및 저감에 관한 고찰)

  • Cho, Kyung-Suk
    • Microbiology and Biotechnology Letters
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    • v.46 no.3
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    • pp.181-193
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    • 2018
  • Nitrous oxide ($N_2O$) is a potent greenhouse gas as well as an ozone-depleting substance. $N_2O$ is emitted during the biological nitrogen removal process in wastewater treatment systems (WTSs), and has significant environmental impacts. In this study, $N_2O$ emission in WTSs was comprehensively reviewed to better understand the effects of key parameters on $N_2O$ emission and obtain useful guidelines for $N_2O$ mitigation strategies in WTSs. Three biological pathways leading to $N_2O$ emission are hydroxylamine oxidation, nitrifier denitrification, and heterotrohic denitrification. Measurements at lab-, pilot- and full-scale WTSs have shown large variations in $N_2O$ emission (0-95% of N-loaded) during wastewater treatment. In the full-scale WTSs (0-14.6% $N_2O$ of N-loaded), the average and median values were 1.95% and 0.2% of N-loaded, respectively. Dissolved oxygen, nitrite concentrations, and chemical oxygen demand (COD)/N ratio are the most important parameters leading to $N_2O$ emission. A variety of operational strategies have been suggested to minimize $N_2O$ emission from WTSs. A new $N_2O$ mitigation strategy involving the introduction of microorganisms with high $N_2O$ reductase activity or oxygenic denitrification ability has been proposed as an alternative canonical denitrification.

Performance Estimation and Maintenance Method for Road Pavement Sections (국도 포장의 장기 공용성 추정 및 유지관리 방안)

  • Lee, Young-Uk;Do, Myung-Sik;Lee, Jong-Dal;Jang, Min-Keun
    • 한국방재학회:학술대회논문집
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    • 2007.02a
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    • pp.125-129
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    • 2007
  • In this paper, a PMS(Pavement Management System) application is presented to control the LCC(Life Cycle Cost) of road pavement. The aim of this paper is to provide the decision makers with the planning information regarding maintenance strategies for efficient road pavement management. The validity of PMS application presented in this paper is investigated through case studies for conducted for 22 national highway road sections in Korea.

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Air Pollution Reduction Strategies of World Major Ports

  • Han, Chul-Hwan
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.48
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    • pp.27-56
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    • 2010
  • Pollution emissions from international shipping and port activities have a significant impact on public health and global climate changes. The purpose of this paper is to review the status of pollution mitigation measures implemented to date in port industry and find out some implications for Korean ports. For this aim, the clean air strategies of the world major ports including six USA ports (Los Angeles/Long Beach, Now York/New Jersey, and Seattle and Tacoma), two European ports (Rotterdam and Gothenburg) and Busan Port were considered. Various measures to reduce emission from ports are evaluated by sectors-ocean going vessels, cargo handling equipments, truck and rail-, on the basis of categories such as reduction control technologies, operational changes and market-based measures. The policy implications of this paper are as follows. First, Clean Air Act Plans of Korean ports are required as soon as possible. Second, integrated approach is required to reduce emission effectively. Finally, the effect of port-related emission reduction can be maximized when various measures are conducted on a regional basis including neighboring ports. Furthermore, regional or global-based approach is useful to guarantee the level playing field among ports.

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Mitigating Antibiotic Resistance at the Livestock-Environment Interface: A Review

  • Ma, Zhengxin;Lee, Shinyoung;Jeong, K. Casey
    • Journal of Microbiology and Biotechnology
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    • v.29 no.11
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    • pp.1683-1692
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    • 2019
  • The rise of antimicrobial resistance (AR) is a major threat to global health. The food animal industry contributes to the increasing occurrence of AR. Multiple factors can affect the occurrence and dissemination of AR in the animal industry, including antibiotic use and farm management. Many studies have focused on how the use of antibiotics in food-producing animals has led to the development of AR. However, a few effective mitigating strategies for AR have been developed in food-producing animals, especially those exposed to the environment. The aim of this review is to summarize potential strategies applicable for mitigating AR at the environment-livestock interface.

Multitasking Façade: How to Combine BIPV with Passive Solar Mitigation Strategies in a High-Rise Curtain Wall System

  • Betancur, Juan
    • International Journal of High-Rise Buildings
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    • v.6 no.4
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    • pp.307-313
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    • 2017
  • This paper outlines the processes and strategies studied and selected by the team during the design stages of the project for the incorporation of BIPV into the tower's façade. The goal was to create a system that helps reduce internal heating and cooling loads while collecting energy through photovoltaic panels located throughout the building. The process used to develop this façade system can be broken down into three stages. 1. Concept: BIPV as design catalyst for a high-rise building. 2. Optimization: Balancing BIPV and Human comfort. 3. Integration: Incorporating BIPV into a custom curtain wall design. The FKI Project clearly illustrates the evolution building enclosures from simple wall systems to high performance integrated architectural and engineering design solutions. This design process and execution of this project represent the design philosophy of our firm.