• Journal of Computing Science and Engineering
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• 제10권2호
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• pp.39-50
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• 2016

In this paper, we present a comparative study of spatial domain features for writer identification and verification with different ink width conditions. The existing methods give high error rates, when comparing two handwritten images with different pen types. To the best of our knowledge, we are the first to design the feature with different ink width conditions. To address this problem, contour based features were extracted using a chain code method. To improve accuracy at higher levels, we considered histograms of chain code and variance in bins of histogram of chain code as features to discriminate handwriting samples. The system was trained and tested for 1,000 writers with two samples using different writing instruments. The feature performance is tested on our newly created dataset of 4,000 samples. The experimental results show that the histogram of chain code feature is good compared to other methods with false acceptance rate of 11.67%, false rejection rate of 36.70%, average error rates of 24.18%, and average verification accuracy of 75.89% on our new dataset. We also studied the effect of amount of text and dataset size on verification accuracy.

• 대한한의학원전학회지
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• 제33권3호
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• pp.63-89
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• 2020

Objectives : To suggest conditions that will allow for change in Traditional Korean Medicine (TKM) curricula through analysis of the failure of widespread acceptance of the integrated curriculum into all Traditional Medicine Colleges. Methods : First, the process of change between TKM education and medical education was compared. Next, the conditions that would stimulate change in TKM curricula were analyzed in three levels: structure, policy, and actor. Results : TKM colleges have not experienced a structural change from the six-year to four-year structure. The accreditation standards of TKM education (KAS2021) should be more supportive instead of forcing change, and the goals should be reset to education improvement instead of meeting the standards of WFME. The deans' leadership and professors' ownership over their subjects need to be modified. A group of professionals that could lead change is required, while other factors such as full-time professorships, clinical practice hours, obligatory teaching hours and overall teaching environment need to be improved. Conclusions : It would be ideal if individual TKM colleges created success models of curricula change-despite the time and effort that is required-that could spread to other colleges. After the new curriculum has been accepted in more that half of the total eleven TKM colleges, an institutional isomorphism can be demanded.

• 기본간호학회지
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• 제25권3호
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• pp.185-196
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• 2018

Purpose: The purpose of this study was to investigate the alopecia experience in adults and to explain the process of their experiences. Methods: Using a grounded theory methodology, 18 interviews were performed with fourteen men and four women, 34~57 years of age, suffering from alopecia. Data were analyzed using the constant comparative analysis method. Results: The core category emerged as "inescapable fetters". adults with alopecia engaged in three stages: embarrassment, seeking solution, and acceptance phase. Causal conditions were a vicious cycle of stress, biological factors and poor life style. Contextual conditions were recognition of irreversibleness, negative social awareness, and marriage. The central phenomenon of the adaptation process among the adults with alopecia was withdrawn life due to negative body image. Action/Interaction strategies included rely on medical treatment, efforts to take good care of hair, research for information treatment, efforts to cover up hair loss, and mind control. Intervening conditions were time cost, economic cost, support of surrounding people. Consequences was burden of unfinished lifetime homework. Conclusion: When caring for these adults, it is important to identify needs, allow patients to express what they want at that moment and support them in maintaining a daily life.

• Nuclear Engineering and Technology
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• 제55권9호
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• pp.3164-3182
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• 2023

The CRUD on the fuel cladding under the pressurized water reactor (PWR) operating condition causes several issues. The CRUD can act as thermal resistance and increases the local cladding temperature which accelerate the corrosion process. The hideout of boron inside the CRUD results in axial offset anomaly and reduces the plant's shutdown margin. Recently, there are efforts to revise the acceptance criteria of emergency core cooling systems (ECCS), and additionally require the modeling of the thermal resistance effect of the CRUD during the performance analysis. There is an urgent need for the evaluation of the effect of the CRUD deposition on the cladding heat transfer under PWR operating conditions, but the experimental database is very limited. The experimental facility called DISNY was designed and constructed to analyze the CRUD-related multi-physical phenomena, and the performance analysis of the constructed DISNY facility was conducted. The thermal-hydraulic and water chemistry conditions to simulate the CRUD growth under PWR operating conditions were established. The design characteristics and feasibility of the DISNY facility were validated by the MARS-KS code analysis and separate performance tests. In the current study, detailed design features, design validation results, and future utilization plans of the proposed DISNY facility are presented.

• 한국의학물리학회지:의학물리
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• 제29권1호
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• pp.8-15
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• 2018

This work reports the acceptance testing and commissioning experience of the Robotic Intensity-Modulated Radiation Therapy (IMRT) M6 system with a newly released $InCise^{TM}2$ Multileaf Collimator (MLC) installed at the Yonsei Cancer Center. Acceptance testing included a mechanical interdigitation test, leaf positional accuracy, leakage check, and End-to-End (E2E) tests. Beam data measurements included tissue-phantom ratios (TPRs), off-center ratios (OCRs), output factors collected at 11 field sizes (the smallest field size was $7.6mm{\times}7.7mm$ and largest field size was $115.0mm{\times}100.1mm$ at 800 mm source-to-axis distance), and open beam profiles. The beam model was verified by checking patient-specific quality assurance (QA) in four fiducial-inserted phantoms, using 10 intracranial and extracranial patient plans. All measurements for acceptance testing satisfied manufacturing specifications. Mean leaf position offsets using the Garden Fence test were found to be $0.01{\pm}0.06mm$ and $0.07{\pm}0.05mm$ for X1 and X2 leaf banks, respectively. Maximum and average leaf leakages were 0.20% and 0.18%, respectively. E2E tests for five tracking modes showed 0.26 mm (6D Skull), 0.3 mm (Fiducial), 0.26 mm (Xsight Spine), 0.62 mm (Xsight Lung), and 0.6 mm (Synchrony). TPRs, OCRs, output factors, and open beams measured under various conditions agreed with composite data provided from the manufacturer to within 2%. Patient-specific QA results were evaluated in two ways. Point dose measurements with an ion chamber were all within the 5% absolute-dose agreement, and relative-dose measurements using an array ion chamber detector all satisfied the 3%/3 mm gamma criterion for more than 90% of the measurement points. The Robotic IMRT M6 system equipped with the $InCise^{TM}2$ MLC was proven to be accurate and reliable.

• 한국식품영양학회지
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• 제17권4호
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• pp.405-411
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• 2004

명태식해를 제조하여 온도조건(5$^{\circ}C$, 2$0^{\circ}C$, 변온조건)에 따른 관능적 특성을 비교 분석하였다. 기계적 조직감의 변화는 5$^{\circ}C$의 경우 경도, 부착성, 응집성 및 씹힘성에서는 증감은 있었으나 유의적 차이가 없었다. 2$0^{\circ}C$에서는 경도, 응집성 및 씹힘성이 전반적으로 숙성 12일까지 증가하다가 그 후로는 감소하였으나, 변온에서는 유의적으로 감소하였고, 감소폭도 적었다. 숙성 온도별에 따른 기호도의 변화를 살펴보면 5$^{\circ}C$, 2$0^{\circ}C$ 및 변온은 각각 14일, 9일 및 13일이 관능적으로 가장 좋았으며, 종합적 기호도가 5점 이상점을 유지하는 시점은 각각 14일, 12일 및 21일로 변온의 경우가 가장 양호하였다. 그리고 관능적 조직감은 씹힘성과, 전반적 기호도는 맛과 높은 양의 상관관계를 가졌다. 정량적 묘사분석(QDA) 결과 일정 숙성기간 후에 변온조건으로 저장함으로써 신맛과 신냄새는 일정 강도를 유지한 반면에 5$^{\circ}C$에서는 오히려 감소하는 경향을 보였다. 결론적으로 변온조건이 다른 온도조건에 비해 관능적 품질(조직감 및 기호도)의 유지가 양호하였으며, 종합적 기호도(5점 이상)가 저장 21일까지 유지되어 5$^{\circ}C$의 14일, 2$0^{\circ}C$의 12일에 비해 연장효과가 있었다. 따라서 산업화를 위한 명태식해 제조에서는 저온저장의 고려는 필수적이라고 생각되었다.

• Safety and Health at Work
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• 제14권3호
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• pp.250-258
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• 2023

The effectiveness of mindfulness techniques in addressing mental health conditions in workers is uncertain. However, it could represent a therapeutic tool for workers presenting with such conditions. Our objective was to assess the effects of mindfulness-based practices for workers diagnosed with mental health conditions. We conducted a systematic review of randomized controlled trials. Participants included were workers with a mental health condition. Interventions included any mindfulness technique, compared to any nonmindfulness interventions. Outcomes were scores on validated psychiatric rating scales. A total of 4,407 records were screened; 202 were included for full-text analysis; 2 studies were included. The first study (Finnes et al., 2017) used Acceptance and Commitment Therapy (ACT) associated or not with Workplace Dialogue Intervention (WDI), compared to treatment as usual. At 9 months follow-up, for the ACT group, depression scores improved marginally (standardized mean difference [SMD]: -0.06, p = 0.021), but anxiety scores were worse (SMD: 0.15, p = 0.036). Changes in mental health outcomes were not statistically significant for the ACT + WDI group. In the second study (Grensman et al., 2018), no statistically significant change in mental health scales has been observed after completion of mindfulness-based cognitive therapy compared to cognitive behavioral therapy. Substantial heterogeneity precluded meta-analysis. This systematic review did not find evidence that mindfulness-based practices provide a durable and substantial improvement of mental health outcomes in workers diagnosed with mental health conditions.

• 품질경영학회지
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• 제50권1호
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• pp.43-61
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• 2022

Purpose: The purpose of this study was verifying factors that affect to intention to use AI financial services and finding a way of building an user oriented AI ecology. Methods: This study used the UTAUT (Unified Theory of Acceptance and Use of Technology) model with independent variables such as performance expectancy, effort expectancy, social influence, facilitating conditions, trust, personal innovativeness and AI understanding as moderating variable. The data was collected through online & offline survey with questionnaire from 330 financial customers. Results: As a result, the analysis suggested that the performance expectancy, social influence, facilitating conditions, personal innovativeness are statistically significant to the intention to use AI. It was also found that AI knowledge of users differently influence the intention to use through the moderating effect on the facilitating conditions. Conclusion: Performance expectancy, social influence, facilitating conditions, personal innovativeness have positive causation to the intention to use in AI financial service. On the facilitating conditions, unlike other variables, it was found that the user's intention to use was different by the level of AI understanding. It means that customers could have the strong intention to use AI even though they don't have enough pieces of knowledge on the factors. Customers seem to be of recognition that the technology has certain benefits for themselves. The facilitating factors are significantly affected by AI understanding and differently effect on the intention to use AI.

• 한국식품영양과학회지
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• 제33권4호
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• pp.730-735
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• 2004

Cook-chill 및 sous vide 콩나물무침과 콩나물국을 단체급식소에 적용시키기 위해 3$^{\circ}C$에서 1일, 3일, 5일간 냉장 저장시킨 후 비타민의 보존율을 분석하였고 소비자 검사를 통해 기호도를 조사하였으며 이에 대한 결과는 다음과 같다. 3$^{\circ}C$에서 저장한 cook-chill 콩나물무침의 thiamin 함량은 1일 저장 후 0.027 mg%,3일 저장 후에는 0.033 mg% 5일 저장 후에는 0.029 mg%이었고 riboflavin 함량은 1일 저장 후 0.060 mg%, 3일 저장 후에는 0.063 mg%, 5일 저장 후에는 0.061 mg%를 나타냈다. Ascorbic acid 함량은 1일 저장 후 4.18 mg%, 3일 저장 후 4.45 mg%, 5일 저장 후 4.42 mg%이었다. 3$^{\circ}C$에서 저장한 cook-chill 콩나물국의 thiamin 함량은 1일 저장 후 0.027 mg%, 3일 저장 후에는 0.035 mg%, 5일 저장 후에는 0.022 mg%이었고 riboflavin 함량은 1일 저장 후 0.027 mg%, 3일 저잘 후에는 0.035 mg%, 5일 저장 후에는 0.025 mg%를 나타냈다. Ascorbic acid 함량은 1일 저장 후 1.32 mg%, 3일 저장 후 1.63 mg%, 5일 저장 후 1.01 mg%이었다. 소비자 검사에서, 콩나물무침은 급식소에서 즉석에서 만든 콩나물무침의 소비자 기호도는 총 평균 3.73점이고 cook-chill콩나물무침의 기호도는 총 평균 3.67점이었다. 콩나물국은 급식소에서 즉석에서 만든 콩나물국의 소비자 기호도는 372점이고 cook-chill콩나물국은 3.54점이었으나 유의적인 차이는 나타나지 않았다. 그러나 cook-chill 콩나물국이 전통적인 콩나물국보다 색(p＜0.05)과 전체적인 수응도 (p＜0.01)에서 유의적으로 낮은 기호도를 보였다.

• 대한간호학회지
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• 제43권5호
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• pp.669-680
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• 2013

Purpose: This study was done to explore the process of accepting CATs among nurses who experienced CATs in Korea. Methods: Grounded theory methodology was utilized. Data were collected from 10 nurses during individual in-depth interviews. Theoretical sampling was used until the data reached saturation. Data were analyzed using the constant comparative analysis method. Results: The core category emerged as "resolving the doubt and integrating" explaining the process of accepting CATs. The nurses engaged in three stages: need awareness, look for solution and integration. Causal conditions were interest as a nursing intervention and orthodox medical limitations. Context was lack of basis for application and increase in social interest. Strategies were new knowledge acquisition, having a strong will, combined with existing knowledge, and individualized intervention. Intervening conditions were others' eye, exhaustion for nurses and physical environment. Consequences were expanding of the nursing role and improved nurse satisfaction. Conclusion: The results of the study should facilitate application of CATs in nursing practice. To help nurses who are interested in CATs, there is a need for education programs, and further research on CATs.