scholarly journals LDA-Based Model for Defect Management in Residential Buildings

2019 ◽  
Vol 11 (24) ◽  
pp. 7201 ◽  
Author(s):  
Byeol Kim ◽  
Yonghan Ahn ◽  
Sanghyo Lee
Keyword(s):  
South Korea ◽  
High Frequency ◽  
Residential Buildings ◽  
Public Spaces ◽  
External Factors ◽  
Repair Cost ◽  
Loss Distribution ◽  
Defect Management ◽  
Warranty Period ◽  
Loss Distribution Approach

This study systematically analyzes various defect patterns that occur during the warranty period of residential buildings using the loss distribution approach (LDA). This paper examines 16,108 defects from 133 residential buildings where defect disputes occurred between 2008 and 2018 in South Korea. The analysis results showed that the defect losses were relatively high in reinforcement concrete (RC) work (3/5/10 years), waterproof work (5 years), and finish work (2 years). It is shown that RC work has a high frequency of defects, such as cracks in concrete in public spaces affected by external factors. In addition, it was analyzed that the type of defect needed high repair cost because the area where the defect—such as incorrect installation and missing task—occurred, needed construction again. According to the level of frequency and severity, losses were divided within four zones to provide detailed strategies (by period). This will effectively contribute to minimizing unnecessary losses from defects as quantifying the losses of defects.

scholarly journals Evaluating the Impact of Defect Risks in Residential Buildings at the Occupancy Phase

2018 ◽  
Vol 10 (12) ◽  
pp. 4466 ◽  
Author(s):  
Sanghoon Lee ◽  
Sanghyo Lee ◽  
Jaejun Kim
Keyword(s):  
Residential Buildings ◽  
Loss Distribution ◽  
Surface Appearance ◽  
Operational Risks ◽  
Loss Distribution Approach ◽  
Matrix Cell ◽  
Loss Distributions ◽  
The Cost ◽  
Water Problems ◽  
The Impact

This study investigated defect risks in residential buildings using the Loss Distribution Approach (LDA), a method of identifying and quantifying operational risks in economic terms. Analysis was performed on 7554 defects in 48 residential buildings where defect disputes occurred between 2008 and 2017. Defects were classified into eight types: affected functionality, broken items, corrosion, detachment, incorrect installation, missing task, surface appearance, and water problems. Work types were classified into seven groups: reinforced concrete (RC), masonry, finish, mechanical, electrical, and plumbing (MEP), door and windows, furniture, and miscellaneous. Using a risk matrix from these categories, the frequency distribution and severity distribution for each matrix cell was used to calculate loss distributions; these were combined to find the total loss distribution. The defect risks centered on RC and MEP. For RC, broken items and water leaks due to cracks or damage represented the most severe defects. For MEP, severe defects occurred owing to malfunctions in products and installation problems. Loss distributions can be used to create scenarios and corresponding response plans; thus, when a defect dispute occurs, the cost can be assessed. Furthermore, residential buildings’ loss distributions for each cell can be used to evaluate the types of work where defects occur and to verify relevant subcontractor’s abilities.

scholarly journals The Concept of Method of Detecting and Analyzing Construction Defects in Residential Buildings

2019 ◽  
Vol 65 (4) ◽  
pp. 81-95
Author(s):  
K. Zima ◽  
S. Biel
Keyword(s):  
Residential Buildings ◽  
Weighted Sums ◽  
Case Based Reasoning ◽  
Repair Cost ◽  
Defect Management ◽  
Criteria Weights ◽  
Definition Of ◽  
Global Similarity ◽  
Case Based ◽  
Construction Defects

AbstractThe authors developed the definition of construction defect and fault and construction defect management based on Polish and foreign publications. In order to assist identification of faults and their analysis in the process of home collection, the authors applied the Case Based Reasoning (CBR) method. In the paper, the authors used Case Based Reasoning (CBR) to support acceptance of apartments. The CBR method allows to determine the magnitude of global similarity for the problem under consideration between the new and old case from the Case Base, using weighted sums of local similarities using criteria weights as coefficients. As a result of CBR-based solutions, an Employer’s representative receives information about the type of construction defects that can be expected, their location and significance, occurrence frequency, and estimated repair cost.

Analysis of Current Practices of Organizing the Export of Medical Services in the United Kingdom, Italy, South Korea and China

2020 ◽  
pp. 30-42
Author(s):  
Arkady Nikolaevich Daykhes ◽  
Vladimir Anatolievich Reshetnikov ◽  
Olga Aleksandrovna Manerova ◽  
Ilya Aleksandrovich Mikhailov
Keyword(s):  
United Kingdom ◽  
South Korea ◽  
Medical Care ◽  
Medical Tourism ◽  
Value Added ◽  
External Factors ◽  
Medical Services ◽  
High Tech ◽  
Medical Organization ◽  
The United Kingdom

Aim of the study. Analysis of medical tourism’s organizational features based on the example of the large medical organizations in the United Kingdom, South Korea, Italy and China. Materials and methods. The data were collected by the authors by interviewing the heads of medical organizations and their deputies in the United Kingdom, South Korea, Italy and China (3–4 respondents per medical organization) using the developed questionnaire to identify the main mechanisms and tools for organizing the export of medical services. SWOT-analysis (Strengths; Weaknesses; Opportunities; Threats) was performed in order to comprehensively evaluate the received information. Results. Along with weaknesses and threats that slow down the development of medical services exports, strengths (internal factors) and opportunities ( external factors) that contribute to the development of medical tourism were also identified: the widespread popularity of the brand of medical organizations abroad which is associated with the provision of premium medical services; versatility and ability to conduct high-tech surgical operations; the presence of a separate premium class building and an international department for working with foreign patients and promoting a medical organization in the world market; well-established business relationships with assistance companies; foreign medical personnel who speak foreign languages and possess necessary skills to treat foreign patients; developed electronic medical care system; developed system of quality control of medical care; the presence of branches in other countries; the presence of a medical visa in the system of legislation; established cooperation with many countries at the embassy level; state licensing and accreditation for the provision of medical services to foreign citzens; the availability of a state website on the provision of medical assistance to foreign citizens; the possibility of the age of value added tax. Conclusion. We identified main patterns in the organization of export of medical services that can be applied to develop this direction in medical organizations of the Russian Federation during the analysis the strengths and weaknesses of four large medical organizations abroad, as well as external factors that affect the work of these medical organizations.

scholarly journals Vaccine-Related Errors in Reconstitution in South Korea: A National Physicians’ and Nurses’ Survey

Vaccines ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 117
Author(s):  
Young Hwa Lee ◽  
Rebecca C. Harris ◽  
Hong Won Oh ◽  
Yongho Oh ◽  
Juan C. Vargas-Zambrano ◽  
...  
Keyword(s):  
South Korea ◽  
High Frequency ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Vaccine Preparation

Vaccine-related errors (VREs) result from mistakes in vaccine preparation, handling, storage, or administration. We aimed to assess physicians’ and nurses’ experiences of VREs in South Korea, focusing on reconstitution issues, and to understand the barriers to and facilitators of preventing them. This was a cross-sectional study using an internet-based survey to examine experiences of reconstitution-related errors, and experience or preference with regard to ready-to-use vaccines (RTU) by physicians and nurses. A total of 700 participants, including 250 physicians and 450 nurses, responded to the questionnaire. In total, 76.4% and 41.5% of the physicians and nurses, respectively, reported an error related to reconstituted vaccines. All errors had been reported as experienced by between 4.9% and 52.0% of physicians or nurses. The errors were reported to occur in more than one in 100 vaccinations for inadequate shaking of vaccines by 28.0% of physicians and 6.9% of nurses, incomplete aspiration of reconstitution vials by 28.0% of physicians and 6.4% of nurses, and spillage or leakage during reconstitution by 20.8% of physicians and 6.9% of nurses. A total of 94.8% of physicians had experience with RTU vaccines, and all preferred RTU formulations. In conclusion, this study highlights the high frequency and types of reconstitution-related errors in South Korea. RTU vaccines could help reduce the time needed for preparation and reduce the risk of errors in South Korea.

scholarly journals Architectural Objects and Public Spaces Connected with Industry. A Contribution to the Discussion on Artistic and Aesthetic Values

2017 ◽  
pp. 41-51
Author(s):  
Ewa Waryś
Keyword(s):  
Subject Matter ◽  
Cultural Landscape ◽  
Residential Buildings ◽  
Conservation Status ◽  
Building Design ◽  
Public Spaces ◽  
The Subject ◽  
The Relationship ◽  
The City ◽  
Aesthetic Values

The article presents the contemporary cultural landscape of the historical workers’ settlements, located within the current administrative boundaries of the city of Katowice. Selected building complexes are standardized in terms of typology and building design, but differ in terms of the conservation status and forms of protection. The aim of the discussion is to show the relationship between the artistic and architectural aesthetics and public spaces related to the industry. The subject matter is an attempt to draw attention to the problem of the conservation status of most parts of the historical complexes of residential buildings in Upper Silesia, their untapped potential and declining values.

scholarly journals Mobile application tool for individual maintenance users on high-rise residential buildings in South Korea

2018 ◽  
Vol 167 ◽  
pp. 01002 ◽  
Author(s):  
Hee-Sung Cha ◽  
Jun Kim ◽  
Do-Hee Kim ◽  
Jia Shin ◽  
Kun-Hee Lee
Keyword(s):  
South Korea ◽  
Mobile Application ◽  
Residential Buildings ◽  
Prototype System ◽  
Repair Work ◽  
High Rise ◽  
Building Maintenance ◽  
Rapid Economic Growth ◽  
Feedback Structure ◽  
Online Feedback

Since 1980’s, the rapid economic growth resulted in so many aged apartment buildings in South Korea. Nevertheless, there is insufficient maintenance practice of buildings. In this study, to facilitate the building maintenance the authors classified the building defects into three levels according to their level of performance and developed a mobile application tool based on each level’s appropriate feedback. The feedback structure consisted of ‘Maintenance manual phase’, ‘Online feedback phase’, ‘Repair work phase of the specialty contractors’. In order to implement each phase the authors devised the necessary database for each phase and created a prototype system that can develop on its own. The authors expect that the building users can easily maintain their buildings by using this application.

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