• 여성건강간호학회지
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• 제29권2호
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• pp.91-103
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• 2023

Purpose: This study aimed to construct a structural equation model to explain and predict factors affecting the health-related quality of life (QoL) in female rheumatoid arthritis (RA) patients based on the health-related QoL model by Ferrans et al. (2005) and a literature review. Methods: Patients (N=243) who were either registered members of an internet cafe composed of patients with RA or rheumatology outpatients at two tertiary general hospitals in Busan, Korea, were recruited via convenience sampling. Data were collected from July 2 to September 9, 2021, and the survey was conducted using a web-based questionnaire. The data were analyzed by SPSS and AMOS 26.0. Results: The goodness-of-fit statistics of the final model exhibited good results (χ²/degree of freedom=2.68, Turker-Lewis index=.94, comparative fit index=.96, standardized root mean-squared residual=.04, root mean- square error of approximation=.08), and 11 out of 14 paths of the model were supported. The squared multiple correlation, which reflected the explanatory power of the environmental characteristics, symptoms, functional status, and perceived health status on health-related QoL, was 80%. In the hypothesis model, 10 paths had significant direct effects, 6 paths had significant indirect effects, and 12 paths had significant total (direct and indirect) effects. Conclusion: Considering that factors directly affecting the health-related QoL of female patients with RA were social support, symptoms (fatigue and depression), resilience, and perceived health status, and that resilience was the most influential factor, clinicians can encourage resilience. Hence, to improve the health-related QoL of female patients with RA, continuing management is necessary, using various intervention methods that focus on enhancing resilience from the early stage to the end of treatment for RA.

• 한국의상디자인학회지
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• 제25권2호
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• pp.61-82
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• 2023

This is a study about the patterns depicted on the reliefs at Taq-i Bustan built during the Sasanian Dynasty of Persia. This study aims to understand the costume culture of the Sassanian Dynasty by analyzing the patterns depicted on the reliefs at Taq-i Bustan. As a research method, a literature survey and a comparative analysis of empirical data collected through historical site exploration was synthesized. The results of this study are as follows: Patterns appearing on the reliefs at Taq-i Bustan include pearl patterns, flower patterns, and animal patterns such as ducks, boars, and simurghs. The themes of these patterns appear differently depending on the social status, so it is assumed that the patterns were used as a means of symbolizing social status in the Sasanian Dynasty. The pearl pattern was a typical pattern that appeared in royal iconography, and the flower pattern appeared in multiple variations, and was a pattern commonly observed in the kings and his servants. Among the animal patterns, the Simurgh(Semurv) pattern is a representative pattern, which symbolizes the fertility and fecundity of the earth and this pattern was observed only on the clothes of kings. Therefore, the Simurgh(Semurv) pattern was understood as a pattern symbolizing the king's wish for the well-being of nature and the people. The patterns of other animals were mainly observed on the king's servants. Through the analysis of the patterns depicted on the reliefs at Taq-i Bustan, the life and the social aspects of the Sassanian Dynasty could be examined.

• 대한토목학회논문집
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• 제29권6D호
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• pp.703-709
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• 2009

본 연구는 교통약자의 이동시설에 대한 실태 및 의식조사를 바탕으로 향후 지하철역사에 추가 도입될 교통약자 시설 개선의 전략 수립시 기초자료를 제시하는 것이 목적이다. 본 연구를 위해 선행연구와 교통약자의 이동편의 증진법의 이동시설 관련 평가항목을 선정하고, 설문조사 및 변형된 중요도-만족도(M-IPA) 분석을 수행하였다. 본 연구는 장애인이 시급히 개선을 요구하는 사항에 대한 개선전략을 수립하는 것이 목적이므로 장애인을 중심으로 결과를 서술하였다. 첫째, 종합적인 측면의 M-IPA 분석결과 장애인은 안내시설에 대한 개선이 필요한 것으로 나타났다. 둘째, 세부적인 측정지표별 M-IPA 분석결과를 살펴보면 보행접근로, 안내방송 및 표지판, 경보 및 피난시설, 장애인화장실에 대한 시설개선이 필요한 것으로 나타나 일반인들에 비해 지하철 역사로의 접근과 정보제공에 대한 부분이 중점적으로 부각되는 것을 알 수 있었다. 따라서 장애인들을 위한 시설개선시 접근과 정보제공에 대한 시설을 시급히 개선하는 것이 지하철 역사의 접근과 이동성 제고를 위해 가장 우선순위 높은 개선사항이라 할 수 있을 것이다.

• Steel and Composite Structures
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• 제45권2호
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• pp.205-218
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• 2022

Proper calculation of splitting tensile strength (STS) of concrete has been a crucial task, due to the wide use of concrete in the construction sector. Following many recent studies that have proposed various predictive models for this aim, this study suggests and tests the functionality of three hybrid models in predicting the STS from the characteristics of the mixture components including cement compressive strength, cement tensile strength, curing age, the maximum size of the crushed stone, stone powder content, sand fine modulus, water to binder ratio, and the ratio of sand. A multi-layer perceptron (MLP) neural network incorporates invasive weed optimization (IWO), cuttlefish optimization algorithm (CFOA), and electrostatic discharge algorithm (ESDA) which are among the newest optimization techniques. A dataset from the earlier literature is used for exploring and extrapolating the STS behavior. The results acquired from several accuracy criteria demonstrated a nice learning capability for all three hybrid models viz. IWO-MLP, CFOA-MLP, and ESDA-MLP. Also in the prediction phase, the prediction products were in a promising agreement (above 88%) with experimental results. However, a comparative look revealed the ESDA-MLP as the most accurate predictor. Considering mean absolute percentage error (MAPE) index, the error of ESDA-MLP was 9.05%, while the corresponding value for IWO-MLP and CFOA-MLP was 9.17 and 13.97%, respectively. Since the combination of MLP and ESDA can be an effective tool for optimizing the concrete mixture toward a desirable STS, the last part of this study is dedicated to extracting a predictive formula from this model.

• 한국생활환경학회지
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• 제25권1호
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• pp.90-97
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• 2018

The purpose of this study is to compare and analyze the air infections in middle and small hospitals with the facilities of large national hospitals that have air-borne infection isolation (AII) wards through actual condition investigation and airflow analysis simulation (CFD) and to provide basic data for prevention. The method and scope of the study are as follows. First, through literature review, data related to prevention of infection spread in domestic medical institutions were investigated. Second, we conducted a survey on the status of isolation facilities to prevent the spread of infectious diseases in large hospitals and small and medium - sized clinics in Korea. Third, airflow analysis simulation (CFD) was carried out using the isolation ward of the nationally designated inpatient ward and the data of the plane and facility system of the small clinic. As a result of the study, it is found that regulations applicable to small and medium-sized clinics are insufficient. In addition, the simulation results show that the infectious disease virus is likely to spread to other patients in the hospital.

• 수완나부미
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• 제6권1호
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• pp.193-221
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• 2014

Archipeligiality, a concept continuously being developed by the scholar, is one that attempts to articulate the Filipino sense of place as discoursed in/through its literatures. As a country composed of 7,107 islands, the very fragmentation and division of the country, as well as its multiculturality and multilinguality, have become the very means by which Filipino writers have "imagined" so to speak-that is, also, constructed, into a singular, united frame-the "nation." This, the author supposes, is an important aspect to explore when it comes to discoursing the larger Southeast Asian imagination, or poetic, as similar situations (i.e. Indonesia, Malaysia, and Singapore), may soon compel for a comparative critico-literary perspective. This paper continues this exploratory "geoliterary" discourse by looking at a Filipino canonical work in English by Cirilo F. Bautista, the epic The Trilogy of Saint Lazarus, the title of which already signals a geographic allusion to the first map-name granted by the Spanish colonizer to the Philippines in the region, and consequently the first signification of the country's subjected existence in the colonial imagination. The work, published between 1970 and 1998, is composed of three parts: The Archipelago, Telex Moon, and Sunlight on Broken Stones, which won the 1998 Philippine Independence Centennial Literary Prize. In these epics, notions of Philippine history and situation were discoursed, and Filipino historical figures were engaged in dialogue by the poet/the poet's voice, with the end of locating the place [where history and time had brought it; or its direction or trajectory as a nation, being true to the Filipino maxim of ang di lumingon sa pinanggalingan, di makararating sa paroroonan (the one who does not look back to his origins would not reach his destination)]. of the Philippines not only in the national imagination, but in this paper, in the wider regional consciousness. The paper proposes that the archipelagic concept is an important and unique characteristic of the Southeast Asian situation, and thus, may be a means to explicate the clearly connected landscapes of the region's imagination through literature. This paper focuses on Sunlight on Broken Stones.

• 대한간호학회지
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• 제53권6호
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• pp.652-665
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• 2023

Purpose: This study aimed to develop a nursing clinical judgment scale (NCJS) and verify its validity and reliability in assessing the clinical judgment of nurses. Methods: A preliminary instrument of the NCJS comprising 38 items was first developed from attributes and indicators derived from a literature review and an in-depth/focus interview with 12 clinical nurses. The preliminary tool was finalized after 7 experts conducted a content validity test based on a data from a preliminary survey of 30 hospital nurses in Korea. Data were collected from 443 ward, intensive care unit, emergency room nurses who voluntarily participated in the survey through offline and online for the verification of the construct validity and reliability of the scale. Results: The final scale comprised 23 items scored on a 5-point Likert scale. Six factors - integrated data analysis, evaluation and reflection on interventions, evidence on interventions, collaboration among health professionals, patient-centered nursing, and collaboration among nurse colleagues - accounted for 64.9% of the total variance. Confirmatory factor analysis supported the fit of the measurement model, comprising six factors (root mean square error of approximation = .07, standardized root mean square residual = .04, comparative fit index = .90). Cronbach's α for all the items was .92. Conclusion: The NCJS is a valid and reliable tool that fully reflects the characteristics of clinical practice, and it can be used effectively to evaluate the clinical judgment of Korean nurses. Future research should reflect the variables influencing clinical judgment and develop an action plan to improve it.

• Structural Engineering and Mechanics
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• 제89권1호
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• pp.33-46
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• 2024

The present research delves into the analysis of nonlinear free and forced vibrations of porous functionally graded (FG) shallow shells reinforced with oblique stiffeners, which are embedded in a nonlinear elastic foundation (NEF) subjected to external excitation. Two distinct types of PFG shallow shells, characterized by even and uneven porosity distribution along the thickness direction, are considered in the research. In order to model the stiffeners, Lekhnitskii's smeared stiffeners technique is implemented. With the stress function and first-order shear deformation theory (FSDT), the nonlinear model of the oblique stiffened shallow shells is established. The strain-displacement relationships for the system are derived via the FSDT and utilization of the von-Kármán's geometric assumptions. To discretize the nonlinear governing equations, the Galerkin method is employed. The model such developed allows analysis of the effects of the stiffeners with various angles as desired, in addition to the quantitative investigation on the influence of the surrounding nonlinear elastic foundations. To numerically solve the problem of vibrations, the 4th-order P-T method is used, as this method, known for its enhanced accuracy and reliability, proves to be an effective choice. The validation of the present research findings includes a comprehensive comparison with outcomes documented in existing literature. Additionally, a comparative analysis of the numerical results against those obtained using the 4th Runge-Kutta method is performed. The impact of stiffeners with varying angles and material parameters on the vibration characteristics of the present system is also explored. The researchers and engineers working in this field may use the results of this study as benchmarks in their design and research for the considered shell systems.

• 대한치과기공학회지
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• 제46권2호
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• pp.21-27
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• 2024

Purpose: This study aimed to analyze the stress distribution and deformation in implant abutments made from titanium (Ti-6Al-4V), zirconia, and polyetheretherketone (PEEK), including their screws and fixtures, under various loading conditions using finite element analysis (FEA). Methods: Three-dimensional models of the mandible with implant abutments were created using Siemens NX software (NX10.0.0.24, Siemens). FEA was conducted using Abaqus to simulate occlusal loads and assess stress distribution and deformation. Material properties such as Young's modulus and Poisson's ratio were assigned to each component based on literature and experimental data. Results: The FEA results revealed distinct stress distribution patterns among the materials. Titanium alloy abutments exhibited the highest stress resistance and the most uniform stress distribution, making them highly suitable for long-term stability. Zirconia abutments showed strong mechanical properties with higher stress concentration, indicating potential vulnerability to fracture despite their aesthetic advantages. PEEK abutments demonstrated the least stress resistance and higher deformation compared to other abutment materials, but offered superior shock absorption, though they posed a higher risk of mechanical failure under high load conditions. Conclusion: The study emphasizes the importance of selecting appropriate materials for dental implants. Titanium offers durability and uniform stress distribution, making it highly suitable for long-term stability. Zirconia provides aesthetic benefits but has a higher risk of fracture compared to titanium. PEEK excels in shock absorption but has a higher risk of mechanical failure compared to both titanium and zirconia. These insights can guide improved implant designs and material choices for various clinical needs.

• 수완나부미
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• 제16권1호
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• pp.39-80
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• 2024

Guided by the prism of cultural studies, this paper takes a look at the Manila Korea Town in Malate, Manila. The location, Manila Korea Town, figures as the paper's object of study by exploring, theorizing, and reflecting on its presence and location within the horizon of the signifying powers of Korea-Philippine relations in the contemporary period. With the subject position of this essay, the paper theorizes by responding to the following questions: How does the meaning-making of South Korea fare with other Koreatowns in the world from the scale of Koreatown in Manila? Subsequently, what happens to a place when a global cultural phenomenon evolves into a form of placemaking in a different nation and territory? As Koreatown finally grounds itself in the anarchic lifeworld of Manila, what does this historical development in our urban lives reveal about our contemporary times? Responding to this set of questions led this paper to foreground the idea of a modular imagined community within a four-part discussion. The body of the essay begins by theorizing on the concept that this paper proposes, modular imagined community, and such a concept work draws from the theories of nationalism by Benedict Anderson and Partha Chatterjee. Subsequently, the antinomy between Anderson and Chatterjee is pursued by looking at the history of such a place, and through this step, the paper unravels the character of the place of Manila Korea Town, which explains the conditions of possibility of such social and communitarian formation. Yet as the public is caught by the presence of such development especially at the heart of Manila, the paper expands the scale and viewpoint by shining light on the globality of South Korea in relation to the Philippines. Lastly, this paper closes with a discussion on the food culture facilitated by this recent development, which also pushes us to imagine its potential, especially in light of the critique raised against South Korea and the popular culture associated with this phenomenon.