Reliability Allocation to I&C Sub-Systems: A Practical Methodology

Author(s):  
Dheenadhayalan Rajamani ◽  
John Arul Arokiaswamy ◽  
Madhusoodanan Kanakkil ◽  
Chellapandi Perumal

As part of probabilistic safety assessment for a nuclear plant, regulators around the globe specify global limits for frequency of nuclear incidents like core damage frequency (CDF), lethal dose to the public, etc. Further allocation of individual targets to subsystems of the plant is left to plant designers normally. In this paper, a workable methodology for reliability allocation is illustrated with Instrumentation and Control (I&C) sub-systems of a Fast Breeder Reactor (FBR). Here, plant I&C is modeled as a set of systems grouped into four categories namely 1) control systems 2) mitigating systems 3) support systems 4) Plant protection systems. From the global limit on core damage frequency, the reliability allocation for I&C subsystems are done based on the hypothesized demand from the subsystems for plant protection. It is illustrated that all I&C sub-systems with varying functions can be linked to the global target directly or indirectly. A case study with entire I&C subsystems which are designed based on functional consideration in Prototype Fast Breeder Reactor is shown as a proof of concept. While it is widely agreed that probabilistic approach is supplementary to deterministic approaches for enhanced safety, the paper argues that probabilistic targets have to be plant wide to have maximum benefits.

Author(s):  
Joseph Kawuki ◽  
Quraish Sserwanja ◽  
Nathan Obore ◽  
Johnson Wang ◽  
Joseph Lau

Abstract Objective: COVID-19 being a rapidly evolving pandemic, early lessons from the first deaths must be learnt to help feed into the public health guidelines. This study, therefore, aims to present the first two deaths due to COVID-19 in Uganda and their public health relevance.Cases: The first case was a 34-year female and support staff at a health center II. She first presented with COVID-19 like symptoms before dying on 21st July 2020. The second case was an 80 years old female, who also presented with COVID-19 like symptoms before dying on 24th July 2020. The postmortem samples of both cases were confirmed positive for COVID-19. Conclusion: This study identifies a need for timely identification and testing of COVID-19 suspects, strengthening of health center capacity, as well as more awareness for effective prevention and control of COVID-19.


2019 ◽  
Vol 11 (10) ◽  
pp. 2953 ◽  
Author(s):  
Tzu-Ming Liu ◽  
Chia-Mei Tien

This study uses discrete choice experiments to evaluate and reduce the environmental impact of negative externalities of managing invasive alien species (IAS), such as “ecological shock”, “health risk”, “waiting time” “tour range” and “prevention and control fee”, on the support of IAS prevention and control. We used data from Taiwan’s Shei-Pa National Park and its visitors for the case study and obtained 602 valid questionnaires. The results indicate that visitors consider that each unit of externality of IAS prevention and control measures significantly reduces their utility, and the magnitude equals the estimated value of externality. However, although negative externalities are inevitable, the support for IAS prevention and control measures could be maximized by adjusting the types and proportions of negative externalities. For example, visitors are willing to sacrifice up to 1.41% of the tour range in exchange for a 1% reduction in ecological shock. This study summarizes the negative externalities of IAS prevention and control measures and proposes to adjust the combination of negative externalities to reduce the shocks of those IAS prevention and control measures on the public, so as to increase the public support for IAS policies and increase the sustainability of tourism.


Author(s):  
Benny Wahyudi H. ◽  
Bachruddin Ali Akhmad ◽  
Dan Mahyuni

Persuasive communication is very important in improving the quality of government in socialization and developing information about regional regulations and policies. The aim of this research is to find out the implementation of Regional Regulation Number 16 of 2012 concerning the Prevention and Control of Abuse and Illicit Narcotics, Psychotropics and Other Addictive Substances (P4GN) in Banjarmasin City (Case Study of Drug Prevention by the National Narcotics Agency). The research method uses a qualitative approach and descriptive type. The research instrument is the researcher himself. Data collection techniques in this study are observation, interviews and documentation. The data analyses are using data reduction, data presentation and verification. The validity of the data is using credibility test technique. The results showed that the implementation of Regional Regulation Number 16 of 2012 concerning the Prevention and Control of the Abuse and Illicit Narcotics, Psychotropics and Other Addictive Substances (P4GN) in Banjarmasin City (Case Study of Drug Prevention by the National Narcotics Agency) has not been implemented optimally. Due to the four implementation factors, according to Edward III's theory, only one factor has been successfully implemented, namely the resource factor. Meanwhile, the factors of communication, disposition and bureaucratic structure have not been successfully implemented, because there are indicators in each factor which cannot be maximally implemented. As in the communication factors, only consistency indicator is successfully implemented. In the disposition factor, there is staff indicator that has not been implemented and in the bureaucratic structure, the two indicators have not been successfully implemented. From this research, BNN Banjarmasin City is suggested to conduct socialization more frequently to the public about P4GN, including legal basis and contents of legal basis. Meanwhile, the community can help BNN in overcoming the problem of drug abuse and trafficking such as stop misusing narcotics. <p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/edu_01/0774/a.php" alt="Hit counter" /></p>


2021 ◽  
Vol 92 (4) ◽  
pp. 461-477
Author(s):  
Lilian van Karnenbeek

Governments are increasingly facing conflicting land uses in cities. Many governments strongly aspire to provide green spaces for the public, yet simultaneously stimulate private preferences for real-estate development. This paper argues that examining the interrelationship between land ownership and control over land clarifies the provision of green spaces in the context of private preferences for development. It presents a case study of the Carré de Soie urban development in which the government aspires to an abundance of green but concurrently encourages the market to take the initiative. The findings show that the lack of public land ownership combined with private actors having a say in control over land fell short in satisfying public aspirations for green spaces. This paper concludes that if cities need to become greener, recognising the role of the government to act in the public interest is of utmost importance.


Through the experience gained by Algeria and the Maghreb Commission for Desert Locust control during the past recession and the present plague (1987, 1989), especially in the use of operational meteorological products of the World Weather Watch of the World Meteorological Organization for improved forecasts of swarm movement, an integrated acridometeorological watch system is suggested for the whole Saharan breeding area to avoid any surprise in the future. This permanent monitoring system should be built and operated jointly by the meteorological and the plant protection services at the national level. The regional and international coordination by the Food and Agriculture Organization of this Desert Locust monitoring could make use of the now experienced and integrated system of the World Weather Watch. The system proposed is not only useful for Desert Locust survey and control, but for the realistic use of the Saharan environment for a better life for nomads and the newly settled peasants.


2021 ◽  
pp. 140349482110562
Author(s):  
Pernille Tanggaard Andersen ◽  
Natasa Loncarevic ◽  
Maria Busk Damgaard ◽  
Mette Winge Jacobsen ◽  
Farida Bassioni-Stamenic ◽  
...  

Aim: This study investigates the non-medical public health and surveillance policies and actions for tackling the community spread of COVID-19 pandemic in Denmark, Serbia and Sweden during the first five months of the pandemic in 2020. Method: The study is inspired by a process-tracing design for case study with a focus on the non-medical measures and surveillance strategies implemented by the three countries. The comprehensive collection and study of national documents formed the basis of the document analysis. Results: The Danish strategy was to prolong the transmission period, preventing high numbers of infected cases from impacting their healthcare capacity. The government’s strategy was characterized by strict governance elements, health guidelines and behavioural recommendations. In Serbia, the main strategy was to prevent the spread and control of the infectious disease by shifting all human and material resources towards the function of controlling the spread. Serbia applied the strictest measures in the fight against coronavirus in relation to other countries in the region and in Europe. The Swedish strategy focused more on recommendations than requirements to motivate the public to modify their behaviours voluntarily. Sweden’s loose pandemic strategy implementation focused on voluntary and stepwise action rather than legislation and compulsory measures. Conclusions: The public health policies and actions implemented to prevent community spread of COVID-19 in Denmark, Serbia and Sweden varied during the first five months of the pandemic. The differences in their response were due to delays in implementation, inconsistencies in perspectives towards the outbreak and the capacity of each country in terms of their pandemic preparedness and response.


2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Musa Musa

This research was conducted to determine the Effectiveness of Jakarta Siaga 112 Emergency Services in Fire Management by UPT. Disaster Data & Information Center of BPBD DKI Jakarta Province by paying attention to aspects contained in the Effectiveness of the Jakarta Siaga Emergency Service Program 112. The research method was carried out with a case study method with data collection techniques using interview methods and document review. Interviews were conducted on 10 (ten) key informants, document review focused on documents related to the Jakarta Emergency Alert Service 112 Effectiveness research in Fire Management. The results showed that the Effectiveness of Jakarta Siaga 112 Emergency Services in Fire Management by UPT. The Center for Disaster Data & Information BPBD DKI Jakarta Province Its effectiveness is still low, due to the Implementation of Emergency Services Jakarta Standby 112 in Fire Management implemented by UPT. Disaster Data & Information Center of BPBD DKI Jakarta Province in terms of the Target Group Understanding of the Program, the Achievement of the Program Objectives aspects, and the Program Follow-up aspects. It is recommended to continue to disseminate this Emergency Service to the public, it is necessary to increase the firm commitment of the Head of 8 SKPD related to fire management so that all units play a role in accordance with the Standard Operating Procedures (SOPs) for Fire Management and the evaluation and follow-up of program services that are held periodically 3 once a month.Keywords: Effectiveness, Emergency Services, Fire Handling


2017 ◽  
Vol 16 (3) ◽  
pp. 587-595
Author(s):  
Vasile Mircea Cristea ◽  
Ph.m Thai Hoa ◽  
Mihai Mogos-Kirner ◽  
Csavdari Alexandra ◽  
Paul Serban Agachi

2019 ◽  
Author(s):  
Onsardi Onsardi

The title of this study is the Strategy of Increasing Consumer Food Loyalty in CurupCity, Rejang Lebong Regency (Case Study in "Henvian" Typical Food Industry). Thisresearch is based on the importance of strategies in increasing business and consumerloyalty to products sold.Strategies to increase business and consumer loyalty can bedone with a SWOT analysis. Place of this research is the "Henvian" shop that sellstypical Rejang lebong food. The method used in this study is descriptive qualitative.Informants in this study were people who were considered to know for certain about theHENVIAN Specialty Food Store in Curup City, Rejang Lebong Regency. The dataanalysis technique used in this study is a SWOT analysis to determine the strengths,weaknesses, opportunities and threats in a typical Rejang Lebong food business.By using SWOT analysis techniques that consist of strengths (weakness), weaknesses(weakness), opportunities (opportnity) and threats (threath). The results of this studycan be concluded that the internal factors that are the strength of the marketing strategyare the quality of the product that is good at a price affordable to the public andtourists, service that is friendly and responsive to consumer needs, as well astechnological advancements that facilitate the promotion of business. Internal factorsthat are a weakness are often lack of stock, there are some products that do not meet thestandard packaging, the product shelf life is short, employees do not use uniforms.External factors that become opportunities are a fairly high economic community,abundant raw materials while external factors that are a threat are the manycompetitors, an unstable economy, the price of basic needs increases. Based on theresults of the SWOT analysis of internal and external factors, the strategy used is toimprove product quality by improving the appearance of packaging and quality ofcontent and quality of service by providing uniforms to employees and providingstandards of service to consumers. .Keywords: Strategy, Consumer Loyalty, SWOT


2019 ◽  
Vol 67 (4) ◽  
pp. 315-329
Author(s):  
Rongjiang Tang ◽  
Zhe Tong ◽  
Weiguang Zheng ◽  
Shenfang Li ◽  
Li Huang

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