• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.21 no.5
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• pp.79-87
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• 2021

This study suggests a design process for vibrotactile interface that can apply haptic perception factors reflecting human tactile mechanisms. This process consists of 4 stages: the haptic sense requirement analysis stage, the haptic element analysis stage, the haptic perception factor analysis stage, the haptic requirement detailed design, and the prototype implementation stage. The advantage of this design process is that unnecessary tasks can be excluded in deriving and implementing user requirements, by applying haptic perception factor analysis, and the biggest feature is that research results on ergonomic mechanisms can be reflected in the haptic design, completes prototype development simultaneously while determining the haptic requirements statement by performing user evaluation, usability testing, and haptic feature optimization tasks simultaneously. This design process includes all stages from user requirements to haptic function detailed design and prototype implementation, so it is expected that general developers who lack expertise in haptic will also be able to design user-centered designs, enabling design and implementation of haptic functions at a certain level.

• Journal of Korean society of Dental Hygiene
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• v.2 no.1
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• pp.43-61
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• 2002

The purpose of this study was focus on development of educational objectives by using oral health education in the elementary school from now on. Based on the results of analysis compared with a model of educational objectives and contents by reflecting the programs for analysis were the oral health education programs of the Ministry of health and social Affairs in Korea, and the programs of two states in u.s. in order to construct goals and contents of oral health education in school. The results in this study can be arranged as follows: First, an analysis on the educational objectives of dental health education program resulted that, from a viewpoint of Bloom's taxonomy of educational objectives, in case of domestic, most learning objectives expressed in the handbook of Ministry of Health and social Welfare were given too much emphasis to the cognitive domain of 37 an items in all. Affective domain were appeared the lack of balance of the development domain. Second, the result of analysis for the programs of two states of America, the cognitive domain were the most abundant of 48 an items in all, and were not significantly different to those of Korea in the form of objectives domain or statement. However a big different was shown that they organized the same objectives domain as a pattern of repeating and deepening at every grade. Third, in this study, 10 educational objectives of dental health education were established, based on the result of analyzing those existing educational programs as central figure. Those are oral cavity, brushing, nutrition of teeth, fluoride, flossing, teeth injury, dental decay, periodontal disease, malocclusion, routine dental visits. And general objectives and specific objectives of each learning area were stated and arranged grade by grade.

• Culinary science and hospitality research
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• v.15 no.4
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• pp.212-226
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• 2009

This study attempted to analyze the correlation between financial ratio and operating performance of foodservice companies, using the financial data by DART service. Financial ratio is an index to identify the management of foodservice companies from calculating the ratio associating two accounts in the financial statements. Managers, creditors and investors often have different purposes for using the ratio analysis to evaluate the contents of the financial statements. According to the analysis of financial ratio and operating performance, listed food and beverage companies proved to have a high correlation in all except for interest coverage. However, foodservice companies showed a high correlation in stability and growth ratio. Therefore, managers of the foodservice companies will need to improve operating performance for using efficient utilization plans of debt from assets and operating expenses(cost of goods sold, general and other expenses).

• The Journal of Korean Academy of Prosthodontics
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• v.43 no.6
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• pp.736-744
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• 2005

Statement of problem. Initial stability of implant is an important factor for predicting osseointegration. It requires a rapid, non-invasive, user-friendly technique to frequently assess the implant stability and the degree of osseointegration. Purpose. The aim of this study was to evaluate the correlation between the resonance frequency analysis (RFA) and the radiographic method for peri-implant bone change under in vitro conditions. Material and Method. Twenty implants of 3.75 mm in diameter(Neoplant, Neobiotech, Korea) were used. To simulate peri-implant bone change, 2 mm-deep $45^{\circ}$ range horizontal defect and 2 mm-deep $90^{\circ}$ range horizontal defect area were serially prepared perpendicular to the X-ray beam after conventional implant insertion. Customized film holding device was fabricated to standardize the projection geometry for serial radiographs of implants and direct digital image was obtained. ISQ values and gray values inside threads were measured before and after peri-implant bone defect preparation. Results. Within a limitation of this study, ISQ value of resonance frequency analysis was changed according to peri-implant bone change (p<0.05) and gray value of radiographic method was changed according to peri-implant bone change (p<0.05). There was no correlation between the ISQ value and the gray value for peri-implant bone change (p>0.05). But, in horizontal defect condition, relatively positive correlation were between ISQ and gray values(r=0.663). Conclusion. This results provided a possibility that peri-implant bone change may be evaluated by both RFA and radiographic method.

• Journal of East-West Nursing Research
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• v.8 no.1
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• pp.126-134
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• 2003

Purpose: The purpose of this study is to supply the basic materials for the development of objective tools to measure 'Hwa-byung' and for the development of the theories and statements associated with 'Hwa-byung' by making clear the meaning and characteristics of 'Hwa-byung' and by analyzing the concept of 'Hwa-byung'. Method: The concept analysis of Hwa-byung was proceeded according to the concept analysis process of Walker and Avant(1995). Result: The conceptual characteristics of Hwa-byung resulted from the research are like these : (1) Injustice (2) Anger (3) Rumination (4) Anxiety. Therefore, we can describe Hwa-byung as the feeling repeatedly accumulated through the heavy mental pain, injustice, and anger and it is appeared with the physical and behavioral symptoms. Conclusion: Through this concept analysis, we propose as followings ; First, there's need of the objective tools which make it possible to assess Hwa-byung through the theory development and the statement associated with Hwa-byung. Second, there's need of interdisciplinary approach in the development of nursing intervention to coordinate the characteristics of Hwa-byung by understanding the total nature of Hwa-byung and finding the variables associated with Hwa-byung.

• Annals of Hepato-Biliary-Pancreatic Surgery
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• v.27 no.1
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• pp.28-39
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• 2023

We aimed to compare resection and survival outcomes of neoadjuvant chemoradiotherapy (CRT) and immediate surgery in patients with resectable pancreatic cancer (RPC) or borderline resectable pancreatic cancer (BRPC). In compliance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement standards, a systematic review of randomized controlled trials (RCTs) was conducted. Random effects modeling was applied to calculate pooled outcome data. Likelihood of type 1 or 2 errors in the meta-analysis model was assessed by trial sequential analysis. A total of 400 patients from four RCTs were included. When RPC and BRPC were analyzed together, neoadjuvant CRT resulted in a higher R0 resection rate (risk ratio [RR]: 1.55, p = 0.004), longer overall survival (mean difference [MD]: 3.75 years, p = 0.009) but lower overall resection rate (RR: 0.83, p = 0.008) compared with immediate surgery. When RPC and BRPC were analyzed separately, neoadjuvant CRT improved R0 resection rate (RR: 3.72, p = 0.004) and overall survival (MD: 6.64, p = 0.004) of patients with BRPC. However, it did not improve R0 resection rate (RR: 1.18, p = 0.13) or overall survival (MD: 0.94, p = 0.57) of patients with RPC. Neoadjuvant CRT might be beneficial for patients with BRPC, but not for patients with RPC. Nevertheless, the best available evidence does not include contemporary chemotherapy regimens. Patients with RPC and those with BRPC should not be combined in the same cohort in future studies.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.34 no.1
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• pp.31-40
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• 2024

Recently, static analysis-based signature and pattern detection technologies have limitations due to the advanced IT technologies. Moreover, It is a compatibility problem of multiple architectures and an inherent problem of signature and pattern detection. Malicious codes use obfuscation and packing techniques to hide their identity, and they also avoid existing static analysis-based signature and pattern detection techniques such as code rearrangement, register modification, and branching statement addition. In this paper, We propose an LLVM IR image-based automated static analysis of malicious code technology using machine learning to solve the problems mentioned above. Whether binary is obfuscated or packed, it's decompiled into LLVM IR, which is an intermediate representation dedicated to static analysis and optimization. "Therefore, the LLVM IR code is converted into an image before being fed to the CNN-based transfer learning algorithm ResNet50v2 supported by Keras". As a result, we present a model for image-based detection of malicious code.

• Annals of Hepato-Biliary-Pancreatic Surgery
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• v.28 no.2
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• pp.115-124
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• 2024

To compare the outcomes of low central venous pressure (CVP) to standard CVP during laparoscopic liver resection. The study design was a systematic review following the PRISMA statement standards. The available literature was searched to identify all studies comparing low CVP with standard CVP in patients undergoing laparoscopic liver resection. The outcomes included intraoperative blood loss (primary outcome), need for blood transfusion, mean arterial pressure, operative time, Pringle time, and total complications. Random-effects modelling was applied for analyses. Type I and type II errors were assessed by trial sequential analysis (TSA). A total of 8 studies including 682 patients were included (low CVP group, 342; standard CVP group, 340). Low CVP reduced intraoperative blood loss during laparoscopic liver resection (mean difference [MD], -193.49 mL; 95% confidence interval [CI], -339.86 to -47.12; p = 0.01). However, low CVP did not have any effect on blood transfusion requirement (odds ratio [OR], 0.54; 95% CI, 0.28-1.03; p = 0.06), mean arterial pressure (MD, -1.55 mm Hg; 95% CI, -3.85-0.75; p = 0.19), Pringle time (MD, -0.99 minutes; 95% CI, -5.82-3.84; p = 0.69), operative time (MD, -16.38 minutes; 95% CI, -36.68-3.39; p = 0.11), or total complications (OR, 1.92; 95% CI, 0.97-3.80; p = 0.06). TSA suggested that the meta-analysis for the primary outcome was not subject to type I or II errors. Low CVP may reduce intraoperative blood loss during laparoscopic liver resection (moderate certainty); however, this may not translate into shorter operative time, shorter Pringle time, or less need for blood transfusion. Randomized controlled trials with larger sample sizes will provide more robust evidence.

• Korea Journal of Hospital Management
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• v.11 no.3
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• pp.1-18
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• 2006

The purpose of this study is to analyze the relationship between intangible asset items and company value by empirical research in the medical industry, which may enhance usefulness of the results of other empirical research on intangible asset and company value. In order to attain the purpose of this study, the stock price is taken as the independent variable and all of intangible asset items reported to a balance sheet except the development expenditures and other development expenditures, and advertisement expenses, ordinary research & development expenditures reported on the income statement are taken as the dependent variables. In the following, I carried out four meaningful results from the analysis. First, research hypothesis 1; Book value of intangible asset reported in balance sheet bears positive relationship with company value shows that development expenditures 1 variable gives positive association in a significant level while a group of \10,000-above-company shows no relationship with company value, the other group of below-\10,000-company supports a consistently significant association. All this considering, we have to keep in mind that lack of prudence may leads to wrong results when we try to analyze. Second, research hypothesis 2; Intangible asset and other intangible asset expenditures reported on the income statement gives positive effect on company value shows that R&D accounts variables give insignificance in a statistical level to all company, including entire group, \10,000-above and below consistently. These results testify that current accounting system is valid. Third, in the case of other intangible asset, it requires further examination of current KAS because statistical results show negatively significant value or insignificant value in a statistical level. That means the more intangible assets, the less company value or nothing. Last, in the case of advertisement expenditure variables of above-\10,000 and entire company shows insignificances in a statistical level consistently while below-\10,000-company shows significant result coherently. We should regard accounting information on the advertisement expenditures of \10,000-below-company with caution. The results of this study provide controversial points whether intangible asset items reported on B/S, excluding development expenditures, should be regarded as asset. To facilitate the utility of accounting information on intangible asset, it seems necessary to regard advertisement expenditures reported on I/S as asset accounts. There are further arguments on the way of dealing with intangible asset under KAS that might be considered.

• Journal of Environmental Impact Assessment
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• v.12 no.3
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• pp.171-188
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• 2003

Environmental Impact Assessment(ElA) in Korea has been used to improve environmental conservation and decision-making since environmental impact statement(EIS) was introduced in 1981 with the promulgation of the Environmental Preservation Act in 1977. which replaoed the Pollution Control Act legislated in 1%3. Together with a rapid growth of environmental perception as well as the diversification of development activities, however, it has recently bring about a strong demand for a new assessment process related to the strategic level of policies, plan, programs. In order to overcome such a limit in ElA system, Prior Environmental Review System(PERS) was introduced for assessment of administrative plans mainly concerned with development projects in 1993. In 1999. the regulations for PERS have been established by an amendment of the Basic Environmental Policy Act.Therefore the foundation of EIA system to integrate environmental concerns in planning processes and project works has been refonned. However the results of the execution of PERS were somewhat insuffident due to the institutional and technical matters. As the world's attention turns to sustainability and the considerations of cumulative effects, the concept of strategic envirorunental assessment(SEA) has taken on more significance and urgency and increasing number of countries and international organizations now undertake some form of SEA. The term SEA, however, is variously defined and understood, generally it means a formal process of systematic analysis of the envirorunental effects of development policies, plans, programmes and other proposed strategic actions. This process extends the aims and principles of EIA upstream in the decision-making process, beyond the project level and when major alternatives are still open. In this paper, we are discussing the significance of SEA and its relevance to EIA and the international trends and institutionalization of SEA. In conclusion we are discussing the comprehensive developing plan for SEA in Korea, then proposing a plan to make institutional arrangements for its application.