• Title/Summary/Keyword: Tool life

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Evolution of the intellectual structure of clothing and textiles literature - A bibliometric study of RJCC - (의류학 연구 지적구조의 변화 - RJCC 계량정보학적 인용분석 -)

  • Seon, Joon-Ho;Kim, Seong Eun;Lee, Hyun-Jung;Lee, Kyu-Hye
    • The Research Journal of the Costume Culture
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    • v.27 no.4
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    • pp.299-309
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    • 2019
  • Citation frequency is an important factor in evaluating journal quality and is used as a measure of journal impact. The citation index of a paper plays an important role in linking papers with groups of other academic papers, forming a huge and complex network. This study examines the intellectual structure of apparel research through the bibliometric citation analysis of The Research Journal of the Costume Culture (RJCC). In order to analyze the changes in the intellectual structure of the RJCC, we used the Korea Citation Index's (KCI) data (highly citing journals and highly cited journals). The NodeXL, a social network analysis tool, was used to examine the connection structure between journals. In order to identify the academic influence of the RJCC, we used the KCI journal citation index. Our findings indicate that the RJCC has a high centrality index among the clothing-oriented journals in the same life sciences field. A look at the journals citing the RJCC and the journals cited within the RJCC also showed that more journals of diverse fields have been recently linked through their citations. This suggests that a convergence of interdisciplinary research is underway in the field of clothing. As a result of examining international journals cited in the RJCC, it was confirmed that they were cited in prominent international journals in various fields.

Derivation of Channel and Floodplain Width Regression Reflecting Korean Channel Shapes in SWAT Model (국내 하천 형상을 반영한 SWAT 모형 내 하천폭 및 홍수터폭 산정 회귀식 도출)

  • Lee, Hyeon-Gu;Han, Jeongho;Lee, Dongjun;Lim, Kyoung-Jae;Kim, Jonggun
    • Journal of The Korean Society of Agricultural Engineers
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    • v.61 no.4
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    • pp.33-42
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    • 2019
  • In this study, the channel and floodplain widths are indirectly measured for three different watersheds using satellite images to reflect the shape of Korean channels in the Soil and Water Assessment Tool (SWAT) model. For measuring the channel and floodplain widths, multiple satellite images were referred to ensure the widest width of certain points. In the single channel, the widths at the multiple points were measured. Based on the measured data, the regression equations were derived to estimate the channel and floodplain widths according to watershed areas. Applying these developed equations, this study evaluated the effect of the change of channel and floodplain widths on the SWAT simulation by comparing to the measured streamflow data. The developed equations estimated larger channel width and smaller floodplain compared with those calculated in the current SWAT model. As shown in the results, there was no considerable changes in the predicted streamflow using the current and developed equations. However, the flow velocity and channel depth calculated from the developed equations were smaller than those of the current equations. The differences were caused by the effect of different channel geometries used for calculating the hydraulic characteristics. The channel geometries also affected the water quality simulation in channels because the hydraulic characteristics calculated by the channel geometries are directly related to the water quality simulation. Therefore, application of the river cross-sectional regression equation reflecting the domestic stream shape is necessary for accurate water quantity / quality and water ecosystem simulation using hydrological model.

Application of simple and massive purification system of dsRNA in vivo for acute toxicity to Daphnia magna

  • CHOI, Wonkyun;LIM, Hye Song;KIM, Jin;RYU, Sung-Min;LEE, Jung Ro
    • Entomological Research
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    • v.48 no.6
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    • pp.533-539
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    • 2018
  • The RNA interference (RNAi) has been considered as an important genetic tool and applied to develop a new living modified (LM) crop trait which is an improvement of nutrient quality or pest management. The RNAi of DvSnf7 has been used for resistance to LM maize and the Western Corn Rootworm which is a major agricultural pest for the US Corn Belt. Most of the environmental risk assessments (ERA) of double strand RNA (dsRNA) have been performed using in vitro transcript products, and not in vivo expressed product. A large amount of dsRNA was required for the acute toxicity assay of water fleas. Therefore development of massive dsRNA purification techniques is critical. Daphnia, a freshwater microcrustacean, is a model organism for studying cellular and molecular mechanism involved in life history traits and ecotoxicology. In this study, we established the massive dsRNA purification method using Escherichia coli and implemented acute toxicity assays to Daphnia magna. As a result, the present RNase A and DNase I, dsRNA was efficiently purified without any special techniques or equipment. Even though purified dsRNA existed during the acute toxicity test, lethality or abnormal behavior were not observed in D. magna. These results indicated that GFP and DvSnf7 dsRNA were not significantly affected to D. magna due to their lack of sequence matching in its genome. The purification method of dsRNA and the acute toxicity assay of water fleas using purified dsRNA would be suitable for the toxicological studies of LMOs to aquatic non-target organisms.

A Study on the Development of ICT Curriculum for Private Security Workers (민간경비 종사자의 ICT직무교육과정 개발에 관한 연구)

  • Sim, Hyun;Kwon, Gyeong-Ae
    • The Journal of the Korea institute of electronic communication sciences
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    • v.14 no.2
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    • pp.397-404
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    • 2019
  • This study developed the ICT curriculum focusing on apartment security guards and analyzed the actual application results. We developed the educational contents and it designed ICT job courseware for elder education by considering and that designed in consideration of the computer attitudes and physical and cognitive characteristics of the elderly. The educational program was applied to the experimental group and the satisfaction and the educational effect were analyzed through the pre and post test results. As a result of the analysis, the satisfaction level of the education program was higher than the average of 4.00 points. The elderly informal education program was examined by using the qualitative assessment test tool before and after the application of the education program. Internet self-efficacy of experiment group, improvement of internet utilization ability, usage of internet use, personal information willingness, life correction, elimination of conflict among generations, self-confidence, and internet stress increased statistically significantly. These results suggest that the "Private Expense ICT Job Training" program developed in this study can be effective for elderly informatization and can be applied to other elderly education programs and contribute to promotion.

Reliability and Validity of Measurement Using Smart Phone-Based Goniometer on Pelvic Tilting Angle in Standing and Sitting Position

  • Ha, Sung-Min;Jeon, In-Cheol
    • The Journal of Korean Physical Therapy
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    • v.31 no.1
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    • pp.35-39
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    • 2019
  • Purpose: The purpose of this study was to assess the intra-rater and inter-rater reliability and validity of pelvic tilting angle measurements using a smart phone-based inclinometer (Clino) compared to a palpation meter (PALM) in the standing and sitting position. This study used an interchangeable method with Clino to measure the pelvic tilting angle in the standing and sitting positions. Methods: Twenty healthy subjects were recruited. Measurements of the pelvic tilting angle in the standing and sitting positions were obtained by two examiners using the Clino and PALM. A resting session was conducted 10 minutes later to assess the intra and inter rater reliability. To assess validity of the measurement using Clino, a PALM was used as the gold standard. The intra-class correlation coefficient (ICC) was used to determine the intra and inter rater reliability of Clino and a PALM. To assess the validity, the Pearson correlation coefficients were used for two measurement techniques to measure the pelvic tilting angle in the standing and sitting positions. The statistical significance was set to ${\alpha}=0.05$. Results: Measurements of the pelvic tilt had high inter-rater reliability in the standing (ICC=0.82) and sitting (ICC=0.88) positions using Clino and intra-rater reliability in the standing (ICC=0.87) and sitting (ICC=0.91) positions using Clino. Measurements of the pelvic tilt had high validity by a comparison of PALM and Clino in the standing (r=0.83) and sitting (r=0.89) positions (p<0.05). Conclusion: The use of Clino can be recommended as a tool to replace the PALM and measure the pelvic tilt angle in the standing and sitting positions while maintaining the clinical reliability and validity.

An Analysis on the Status Quo of International Students' Media Information Literacy in Social Network Environment (소셜 네트워크 환경에서 국내 외국인 유학생의 미디어 정보 리터러시 현황분석)

  • Choi, Jin-Sik;Lee, Young-Suk;Uh, Je-Sun;Choi, Chul-Jae
    • The Journal of the Korea institute of electronic communication sciences
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    • v.13 no.6
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    • pp.1323-1332
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    • 2018
  • The purpose of this study is to analyze the level of Media Information Literacy of international students in K-university, who attend the courses in which the classes are delivered only in English. A survey was carried out to find out the level of media information literacy. In order to verify the validity and reliability of the measurement result gathered from the responses, an item analysis was carried out with SPSS21.0, a statistics analysis software, and the diversity of utilizing media information literacy was also measured according to the factors of each analysand group. The analysis result gathered through ${\chi}^2-test$, a frequency analysis tool, shows that international students use domestic media information literacy mainly for daily life activities such as the internet shopping and the bank transaction.

Predictive Optimization Adjusted With Pseudo Data From A Missing Data Imputation Technique (결측 데이터 보정법에 의한 의사 데이터로 조정된 예측 최적화 방법)

  • Kim, Jeong-Woo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.2
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    • pp.200-209
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    • 2019
  • When forecasting future values, a model estimated after minimizing training errors can yield test errors higher than the training errors. This result is the over-fitting problem caused by an increase in model complexity when the model is focused only on a given dataset. Some regularization and resampling methods have been introduced to reduce test errors by alleviating this problem but have been designed for use with only a given dataset. In this paper, we propose a new optimization approach to reduce test errors by transforming a test error minimization problem into a training error minimization problem. To carry out this transformation, we needed additional data for the given dataset, termed pseudo data. To make proper use of pseudo data, we used three types of missing data imputation techniques. As an optimization tool, we chose the least squares method and combined it with an extra pseudo data instance. Furthermore, we present the numerical results supporting our proposed approach, which resulted in less test errors than the ordinary least squares method.

The Effect of Traditional Medicine for Lymphedema in Breast Cancer Patients: A Systematic Review (유방암 환자의 림프부종에 대한 한의학적 치료 : 체계적 문헌 고찰)

  • Park, Chan-ran;Lee, Ga-young;Son, Chang-gue;Cho, Jung-hyo;Lee, Nam-hun
    • The Journal of Internal Korean Medicine
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    • v.40 no.3
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    • pp.343-355
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    • 2019
  • Objectives: Traditional oriental medicine is used in treating breast cancer-related lymphedema to alleviate symptoms. Upper limb lymphedema is a symptom that is frequently observed in patients with breast cancer, and it impairs their quality of life. This systematic review aimed to summarize the current available evidence to evaluate the effect of traditional oriental medicine on upper limb lymphedema in breast cancer patients. Methods: The review evaluated randomized controlled trials (RCTs) measuring the effect of herbal medicine, acupuncture, and moxibustion on upper limb lymphedema in breast cancer patients within four electronic databases. The Cochrane risk of bias (ROB) tool was used to assess the quality of the RCTs. Results: In total, 23 RCTs met the inclusion criteria. Among them, 22 studies reported that the rate of severity of lymphedema improved after treatment in the traditional treatment group using herbal medicine, acupuncture, or moxibustion better than in the conventional medicine group. The methodological quality of the RCTs was insufficient with an unclear and high ROB. Conclusions: Traditional oriental medicine may have a potential to improve lymphedema in patients with breast cancer. To confirm the clinical recommendation, further research with a rigorous study design is required to support the effects of traditional oriental medicine.

Research on how IoT can be taken into account when start encouraging Startups for the elderiy (고령층 일자리연계를 위한 드론테크산업 교육에 관한 연구)

  • Kim, Ki-hyuk;Ahn, Gwi-Im;Lim, Hwan-Seob;Jung, Deok-Gil
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2016.10a
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    • pp.430-432
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    • 2016
  • It seems that the hottest UAV drone market shows a similar move to that of smartphone. Depart from a communication medium, smartphone incorporates the role of cameras and game players. Likewise, drone will be versatile in the future. For example, drone was developed as war weapons but now it is getting close to our real life as toy or tool for aerial photography. In this paper, we studied how to bring the aging population to drone industry. Previously, controlling skills and taking aerial photography seemed to have nothing to do with citizen seniors. However, we try to show any positive relationship between those, thus creating more job opportunities in this paper.

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Association of Health Outcomes with Frailty in Community-Dwelling Korean Older Adults: An Integrative Review (국내 지역사회 거주 노인의 허약과 건강결과 간의 관계에 대한 통합적 고찰)

  • Son, Youn-Jung;Lee, Suk Jeong;Choi, Yu Ri
    • Journal of Home Health Care Nursing
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    • v.26 no.1
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    • pp.5-18
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    • 2019
  • Purpose: Frailty is associated with an increased risk of adverse health outcomes. We aimed to review the relationships between frailty and health outcomes in community-dwelling Korean elderly individuals. Methods: Whittemore and Knafls' framework for conducting integrative reviews was used. PubMed, Cumulative Index to Nursing and Allied Health Literature, and six Korean databases were searched. For analysis, the study included articles written in English and Korean published between January 1960 and June 2018. Of the total 1,488 studies found in the databases, we analyzed 15 studies that met the quality of the evaluation criteria. Results: The prevalence of frailty in Korean elderly individuals ranged from 6.5% to 11.7% when divided into three levels of frailty. The health outcomes assessed in relation to frailty were divided into five domains: quality of life, physical health, psychosocial health, health behavior, and health care quality. Frailty was negatively associated with all five domains. Conclusions: Our study suggested that nurses should be aware of the limitations in the physical and cognitive functions of frail elderly individuals and provide tailored interventions for Korean elderly individuals. Furthermore, a large-scale study is needed to develop the Korean model of the frailty assessment tool and to verify the conceptual model of this study.