• Title/Summary/Keyword: Safeguard

Search Result 212, Processing Time 0.025 seconds

Large Steel Tank Fails and Rockets to Height of 30 meters - Rupture Disc Installed Incorrectly

  • Hedlund, Frank H.;Selig, Robert S.;Kragh, Eva K.
    • Safety and Health at Work
    • /
    • v.7 no.2
    • /
    • pp.130-137
    • /
    • 2016
  • At a brewery, the base plate-to-shell weld seam of a $90-m^3$ vertical cylindrical steel tank failed catastrophically. The 4 ton tank "took off" like a rocket leaving its contents behind, and landed on a van, crushing it. The top of the tank reached a height of 30 m. The internal overpressure responsible for the failure was an estimated 60 kPa. A rupture disc rated at < 50 kPa provided overpressure protection and thus prevented the tank from being covered by the European Pressure Equipment Directive. This safeguard failed and it was later discovered that the rupture disc had been installed upside down. The organizational root cause of this incident may be a fundamental lack of appreciation of the hazards of large volumes of low-pressure compressed air or gas. A contributing factor may be that the standard piping and instrumentation diagram (P&ID) symbol for a rupture disc may confuse and lead to incorrect installation. Compressed air systems are ubiquitous. The medium is not toxic or flammable. Such systems however, when operated at "slight overpressure" can store a great deal of energy and thus constitute a hazard that ought to be addressed by safety managers.

PLUTONIUM MANAGEMENT OPTIONS: LIABILITY OR RESOURCE

  • Bairiot, Hubert
    • Nuclear Engineering and Technology
    • /
    • v.40 no.1
    • /
    • pp.9-20
    • /
    • 2008
  • Since plutonium accounts for 40-50% of the power produced by uranium fuels, spent fuel contains only residual plutonium. Management of this plutonium is one of the aspects influencing the choice of a fuel cycle back-end option: reprocessing, direct disposal or wait-and-see. Different grades and qualities of plutonium exist depending from their specific generation conditions; all are valuable fissile material. Safeguard authorities watch the inventories of civil plutonium, but access to those data is restricted. Independent evaluations have led to an estimated current inventory of 220t plutonium in total (spent fuel, separated civil plutonium and military plutonium). If used as MOX fuel, it would be sufficient to feed all the PWRs and BWRs worldwide during 7 years or to deploy a FBR park corresponding to 150% of today' s installed nuclear capacity worldwide, which could then be exploited for centuries with the current stockpile of depleted and spent uranium. The energy potential of plutonium deteriorates with storage time of spent fuel and of separated plutonium, due to the decay of $^{241}Pu$, the best fissile isotope, into americium, a neutron absorber. The loss of fissile value of plutonium is more pronounced for usage in LWRs than in FBR. However, keeping the current plutonium inventory for an expected future deployment of FBRs is counterproductive. Recycling plutonium reduce the required volume for final disposal in an underground repository and the cost of final disposal. However, the benefits of utilizing an energy resource and of reducing final disposal liabilities are not the only aspects that determine the choice of a back-end policy.

Safeguard Memory Operation for LEO Stellite (저궤도위성 세이프가드 메모리 운영)

  • Chae, Dong-Seok;Yang, Seung-Eun;Cheon, Yee-Jin
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • 2012.11a
    • /
    • pp.8-10
    • /
    • 2012
  • 위성을 전체적으로 제어하는 탑재소프트웨어가 동작하는 주 메모리와는 별도로 세이프가드 메모리가 있다. 세이프가드 메모리는 주로 위성의 장애관리를 위해 사용되는 것으로 프로세서 리셋 시에 전체적으로 초기화가 수행되는 주 메모리와는 달리 별도의 전원을 사용하여 항상 Power-ON 상태를 유지하고 주/부 2개의 메모리가 주/부 프로세서와 Cross-Strap으로 연결되어 어느 프로세서에서든 접속이 가능하도록 구성되어 있다. 위성에 심각한 장애가 발생하여 정상적인 운영이 불가능한 경우, 위성은 Fail-over 과정을 거치게 되는데, Fail-over 과정에서 2개의 세이프가드 메모리의 비상운영데이터 영역에 장애 발생원인 및 프로세서 리셋 이후에 필요한 정보들을 기록하고, 미리 정해진 Backup 하드웨어를 이용하여 시스템 초기화가 수행된다. Backup 하드웨어를 통하여 프로세서가 정상적으로 Boot-up되면 세이프가드 메모리에 저장된 비상운영데이터를 이용하여 위성의 장애발생 원인을 파악하고, 정상운영모드로 복귀하는 절차를 거치게 된다. 본 논문은 저궤도 위성에서 사용되는 세이프가드 메모리 운영방식에 대해 기술한 것이다.

Passenger evacuation simulation considering the heeling angle change during sinking

  • Kim, Hyuncheol;Roh, Myung-Il;Han, Soonhung
    • International Journal of Naval Architecture and Ocean Engineering
    • /
    • v.11 no.1
    • /
    • pp.329-343
    • /
    • 2019
  • In order to simulate the evacuation simulation of a ship during a sinking, the slope angle change of the ship must be reflected during the simulation. In this study, the passenger evacuation simulation is implemented by continuously applying the heeling angle change during sinking. To reflect crowd behavior, the human density and the congestion algorithm were developed in this research and the walking speed experiment in the special situation occurring in the inclined ship was conducted. Evacuation simulation was carried out by applying the experimental results and the change of the walking speed according to the heeling angle of the ship. In order to verify the evacuation simulation, test items suggested by International Maritime Organization (IMO) and SAFEGUARD Validation Data Set conducted on a large Ro-PAX ferry (SGVDS 1) which performed real evacuation trial in full-scale ships were performed and the results of simulation were analyzed. Based on hypothetical scenario of when a normal evacuation command is delivered to the passengers of MV SEWOL in time, we predicted and analyzed the evacuation process and the number of casualties.

Family Business and Risk Management: Perspectives of SMEs Entrepreneurs in Indonesia

  • TAN, Jacob Donald;SUGIARTO, Sugiarto;BUDHIJONO, Fongnawati
    • The Journal of Asian Finance, Economics and Business
    • /
    • v.8 no.5
    • /
    • pp.851-861
    • /
    • 2021
  • This study aims to explore the specific risks in family small-medium enterprises (SMEs) and explain how they manage these risks to sustain and expand. In Indonesia, family business composes around 95 percent of all businesses and contributes about 80 percent to the country's economy. SMEs contribute approximately 57.8 percent to the nation's gross domestic product. Risk management poses challenges to the family business's survival, as family members do not take actions on risk. The assessment of risk is difficult and family businesses lack the ability to determine risk management priorities, including risk management review processes to evaluate risk, thus leading to family business failures. Applying the case study approach, in-depth semi-structured interviews were conducted in seven family SMEs comprising fifteen informants. Additionally, a focus group discussion consisting of three experts is conducted to reaffirm the findings from the interviews, observations, and field notes. The research identified the specific risks and how the family owners strategize to safeguard against these risks such as cash flow deficiency, operations dysfunction, cultural frailty, disharmony, transgenerational entrepreneurship failure, political uncertainty, and unprofessionalism. Comprehending these risks and their strategic decisions elucidated in this research could enable the family owners and key non-family professionals to work hand-in-hand to thrive over the family business risks together. Further avenues of research regarding family business risk management are also suggested in this study.

A Comparative Study of International Norms and Korea Legal system related to the Concept of Spatial Safeguarding in Cultural Heritage (국제규범과 국내 법제도의 문화재 공간 보호개념 비교연구)

  • Han, Na-Lae
    • Journal of the Architectural Institute of Korea Planning & Design
    • /
    • v.35 no.4
    • /
    • pp.103-114
    • /
    • 2019
  • From the "Recommendation on the Safeguarding of the Beauty and Character Landscapes and Sites"(1962) to the "ICOMOS-IFLA Document on Historic Urban Public Parks"(2017), 'the spatial safeguarding Concept of Cultural Heritage' in International Norms has manifested in various types. In this article, 24 types of International Norms that reflect 'the concept of Spatial Safeguarding in Cultural Heritage' and Korea legal system such as 'Historical and Cultural Environment' were analyzed in the following two aspects. The first aspect is 'Object Type to safeguard' and analyzed in four types such as 'Groups of buildings(A type)', 'Surrounding, Environment, Setting(B type)', 'Cultural landscape(C type)', 'Historic area and Historic towns(D type)'. The second aspect is 'Safeguarding value(analysis elements)' and analyzed in the following tree elements ; 'Landscape value' such as skyline, 'Intangible value' such as the functions of cultural customs, and 'Ecological value' that should preserve life itself. As a result of the study, 'the concept of Spatial Safeguarding in Cultural Heritage' including C and D type and three value which are trends of International Norms are reflected in Korea legal system, and concrete safeguarding methodology is also implemented systematically in case of ecological value. However, intangible values are not specific to the methodology in both International norms and Korea legal systems, and should be developed in the future.

The Impact of Market Discipline on Charter Value of Commercial Banks: Empirical Evidence from Pakistan Stock Exchange

  • AKHTAR, Muhammad Naveed;SALEEM, Sana
    • The Journal of Asian Finance, Economics and Business
    • /
    • v.8 no.4
    • /
    • pp.249-261
    • /
    • 2021
  • To tranquilize the devastating impact of unnecessary risk-taking behavior of banks towards the economy for maximizing their profits that usually arises due to widely known 'moral-hazard' problem originating from market competition and intensified by bank's limited liability, the banking system is strongly monitored across all countries of the world. The goal of controlling would become more feasible if there exist some self-discipline and motivations which could safeguard the banks' charter value through the mechanism of market discipline. Therefore, our study is aimed to scrutinize the relation between market discipline and charter value of local commercial banks that are registered on the Pakistan Stock Exchange by analyzing a balanced panel data from the year 2007 to 2019. Deposit growth, interbank deposits, and subordinate debt are taken as proxies to measure market discipline whereas Tobin's Q theory is applied for calculating the charter value. Generalized Least Square Regression with Fixed Effect Model is used for evaluation. The outcomes reveal that in the existence of control variables, all proxies of market discipline have a significant positive impact on bank charter value. Our research has important policy implications for monitoring and supervising financial intermediaries for their stability and soundness by offsetting the complications of moral-hazard in the financial systems.

The Relationship between Green Marketing and Firm Reputation: Evidence from Content Analysis

  • WOO, Eun-Jung
    • The Journal of Asian Finance, Economics and Business
    • /
    • v.8 no.4
    • /
    • pp.455-463
    • /
    • 2021
  • The purpose of this study is to identify the relationship between firm's green marketing approach and firm's reputation improvement among customers. To investigate the object of the current study and provides adequate material to fill a gap in the literature, the current author collected abundant textual data from numerous extant literature. Because the author needed to augment about reliability and validity, textual data from trusted peer-reviewed sources was obtained from numerous databases. Based on a large body of literature, this study suggests that companies have to declare their stand based on their positioning to safeguard their reputation as an entity and that of its products and services. The five components of a company adopting a recognized environmental marketing strategy include product strategy, demand strategy, pricing strategy, distribution strategy, and labeling strategy Thus, firms' environmental marketing strategies have to be designed with the complete intent of transformation as a solution to enhance their reputation. The current study concludes that the comparison of environmental marketing strategies does not correctly help in ranking the concern in an effective way, and describe the exact details needed in each of the five categories for a company to carry its operations in a sustainable fashion.

Safe clinical photography: best practice guidelines for risk management and mitigation

  • Chandawarkar, Rajiv;Nadkarni, Prakash
    • Archives of Plastic Surgery
    • /
    • v.48 no.3
    • /
    • pp.295-304
    • /
    • 2021
  • Clinical photography is an essential component of patient care in plastic surgery. The use of unsecured smartphone cameras, digital cameras, social media, instant messaging, and commercially available cloud-based storage devices threatens patients' data safety. This paper Identifies potential risks of clinical photography and heightens awareness of safe clinical photography. Specifically, we evaluated existing risk-mitigation strategies globally, comparing them to industry standards in similar settings, and formulated a framework for developing a risk-mitigation plan for avoiding data breaches by identifying the safest methods of picture taking, transfer to storage, retrieval, and use, both within and outside the organization. Since threats evolve constantly, the framework must evolve too. Based on a literature search of both PubMed and the web (via Google) with key phrases and child terms (for PubMed), the risks and consequences of data breaches in individual processes in clinical photography are identified. Current clinical-photography practices are described. Lastly, we evaluate current risk mitigation strategies for clinical photography by examining guidelines from professional organizations, governmental agencies, and non-healthcare industries. Combining lessons learned from the steps above into a comprehensive framework that could contribute to national/international guidelines on safe clinical photography, we provide recommendations for best practice guidelines. It is imperative that best practice guidelines for the simple, safe, and secure capture, transfer, storage, and retrieval of clinical photographs be co-developed through cooperative efforts between providers, hospital administrators, clinical informaticians, IT governance structures, and national professional organizations. This would significantly safeguard patient data security and provide the privacy that patients deserve and expect.

Practical Suggestions for Promoting of Virtual Hearings in International Arbitration (국제중재에서 화상심리의 활성화를 위한 실무적 제언)

  • Kim, Yong Il;Hwang, Ji Hyeon
    • Journal of Arbitration Studies
    • /
    • v.32 no.2
    • /
    • pp.115-133
    • /
    • 2022
  • This article examines the Practical Suggestions for Promoting of Virtual Hearings in International Arbitration. COVID-19 had an prompt and meaningful impact on the practice of international arbitration. Nevertheless arbitral institutions, arbitral tribunals, and other participants learned quickly how to deal with this new challenge. The use of virtual or online hearings has been gaining popularity during the COVID-19 pandemic. Either with the help of arbitral institutions or by themselves, the parties realized that the only way to safeguard a hearing at all was to run it virtually. In fact, hearings by video conference or other technical means seemed to be the magic solution. One of the leading arbitration institutions, i.e. the International Chamber of Commerce in Paris has amended its Arbitration Rules to accept the subjects of recent international arbitration practice. Other arbitral institutions have similarly amended their respective rules. Many recent and adaptable institutional arbitration rules, either expressly or implicitly, allow for hearings to be conducted remotely. The trend has already been set by the leading institutions as ICC, LCIA, ICSID, SCC SIAC, and many more will follow. In short, enthusiasts of virtual hearings even believe that virtual hearings are "the new normal".