• 한국산업정보학회논문지
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• 제27권1호
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• pp.111-123
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• 2022

코로나19 판데믹 상황에서 컨테이너선 운임은 유례없는 큰 폭의 상승세를 보이고 있다. 컨테이너선 운임 상승 요인에 대해서 다양한 분석이 이루어지고 있으나, 비정형 데이터인 텍스트 자료를 활용한 분석은 전무한 상황이다. 따라서 본 연구에서는 관련 기사들을 대상으로 최근의 컨테이너선 운임 상승의 요인들을 텍스트 마이닝 기법중 하나인 네트워크 텍스트 분석과 LDA 토픽 모델링을 통해 파악하였다. 2020년 1월부터 2021년 7월까지 로이즈리스트에 게재된 기사들을 대상으로 텍스트 분석을 하였다. 분석 결과, 중국과 미국의 무역마찰, 글로벌 생산감소를 예측한 글로벌 선사들의 급격한 기항 횟수의 감소와 임시결항의 증가, 터미널 혼잡, 수에즈 운하 봉쇄와 같은 예기치 못한 사고들이 주요 원인으로 분석되었다.

• 한국보건간호학회지
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• 제23권1호
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• pp.113-128
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• 2009

Purpose: To explore the barriers and solutions of immunization programs for children among vulnerable classes in the position of service providers in Community health centers. Method: Data were collected through focus group interviews with 3 groups (17 providers), and were analyzed according to the analytic method of Morgan (1998) and Krueger (1998). Results: The following five categories were identified: difficulties in obtaining a list of children among vulnerable classes, difficulties in first contact with them, difficulties in up-to-date immunization, various difficulties according to the types of vulnerable family and suggestions of solution. These results indicated that there are many difficulties in providing expanded immunization service for children among vulnerable classes in terms of manpower, cooperation of departments in public health centers and linkages between health and welfare. Finally, the characteristics of the types of vulnerable family need to be elucidated. Conclusion: To increase immunization rates among children of vulnerable classes, policies need to be prepared at the public health organization itself and the linkages between health and welfare and need for hiring additional personnel.

• ETRI Journal
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• 제42권4호
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• pp.608-618
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• 2020

We present a novel GPU-based ray-casting algorithm for volume rendering of unstructured grid data. Our volume rendering system uses a ray-casting method that guarantees accurate rendering results. We also employ the per-pixel intersection list concept in the Bunyk algorithm to guarantee an accurate result for non-convex meshes. For efficient memory access for the lists on the GPU, we represent the intersection lists for all faces as an array with our novel construction algorithm. With the intersection lists, we perform ray-casting on a GPU, and a GPU thread handles each ray. To increase ray-coherency in a thread block and improve memory access efficiency, we extend a prior image-tile-based work distribution method to fit modern GPU architectures. We also show that a prior approach using a per-thread local buffer to reduce redundant computation is not appropriate for modern GPU architectures. Instead, we take an on-demand calculation strategy that achieves better performance even though it allows duplicate computations. We applied our method to three unstructured grid datasets with different characteristics. With a GPU, our method achieved up to 36.5 times higher performance for the ray-casting process and 19.7 times higher performance for the whole volume rendering process compared with the Bunyk algorithm using a CPU core. Also, our approach showed up to 8.2 times higher performance than a GPU-based cell projection method while generating more accurate rendering results. These results demonstrate the efficiency and accuracy of our method.

• 한국환경과학회지
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• 제26권11호
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• pp.1223-1233
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• 2017

The purposes of this study are to analyze the degree of satisfaction on forest experience among children, based on a survey of teachers and parents who lead them, and to make proposals based upon the findings. The survey was performed in forest experience for children at Apsan Park in Daegu. The results are as follows. First, there were 78 respondents comprising 34 teachers, 39 parents, and 5 others. The teachers' age groups were distributed evenly between the 20s and 40s and parents' 51.3% were in their 30s and 46.2% in their 40s. Second, all participants responded that forest experience is necessary for children. 80.8% of respondents required continually additional construction. Specifically, parents insisted that forest experience for children should be built up more than the teachers did. Third, as a result of the management and program satisfaction of forest experience for children, 38.5% of respondents wanted increased access and another 38.5% desired unlimited access. In addition, the older teachers preferred more flexible access. Fourth, the safe facility topped the list of the four facilities ranked by importance with 0.39 points, followed by the learning experience field, the shelter facility, and the discretional facility. This study aims to build up basic data in order to make and practically manage forest experiences for children. Therefore, through continuous research, forest experience for children should be established as a practical experience spaces for children.

• 대한간호학회지
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• 제6권1호
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• pp.23-28
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• 1976

This study was undertaken to obtain information about selected characteristics and the degree of physical disability of patients with a diagnosis of cerebrovascular accident upon their discharge from a general hospital. It was hoped that this information would contribute to the assessment of their needs for follow-up nursing care. Nurse's and Physician's Progress Notes of all stroke patients discharged from five general hospitals in Seoul from January to December 1975 were analysed using a prepared check list. Patients with other complicating diagnosis such as diabetes, tuberculosis or heart disease were excluded from the sample. According to six factors used to grade the total sample of 334 stroke victims degree of physical ability at discharge, 144 (43%) of the Survivors had good functional ability, 72 (22%) fair, 62 (18%) poor, and 57(17%) very Poor. Certain clinical diagnosis correlated with the degree of physical ability. Intra cranial Hemorrhage and Subarachnoid Hemorrhage tended to be related to poor and very poor outcome categories. There was no significant correlation between nae and ability outcome, women had revealed a significantly positive correlation with poor and very poor ability outcomes. The hospitalization period was less than three days for 37.5% of the total group, and more than one month for 4.7%. Those patients with less than three days hospitalization accounted for the highest relationship with poor and very poor ability outcomes. Of the total groups 175(50.99%), were discharged with a diagnosis of condition improved (though not necessarily with good physical ability). The results suggest serious need for comprehensive follow- up nursing care for stroke survivors discharged a from general hospitals in Seoul.

• 한국한의학연구원논문집
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• 제14권3호
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• pp.137-148
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• 2008

Computerization is recognized as simple supporting tools up to recently but Information is made for the improvement of company's outcome beyond the assistant tools and is emerged as core tools of creating new opportunities for company in point of management strategy. But Information plays minor role in Korean Institute of Oriental Medicine(KIOM) yet. Information has not processed systematically because of lack of understanding and budget in KIOM. The purpose of this research is to make plan for knowledge information which is aimed to make effective supporting and strengthening the ability of KIOM's research, until 2013. Also we tried to find new project s for information and to apply the result to planned information projects. The final goal of this study is to make mid/long-term information plan of KIOM. We applied the general information strategy planning(ISP) method which is progressed as analysis of information technology, analysis of information status, design of future model and extraction of action plan order. First, we examined the information elements for the advanced management from analysis of management environment and analyzed information technology trends. Second, we list up the gaps and problems of KIOM's information status and define the future model to solve this problems. It is showed the road map of time and budget for future model to progress systematically inner-information of purpose. We hope that information of KIOM will be conducted successfully.

• 패션비즈니스
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• 제2권4호
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• pp.102-111
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• 1998

The purpose of this study is to present the basic material for the competitive, high-quality products by analyzing employees' attitude toward their job and some factors which influence the enhancement of productivity, education of workers, and facilities. This project was mainly conducted the conditions of women's wear manufacturing industries in Taegu by interviewing 143 employees in the sewing department. The result of this dissertation can be summarized as follows; 1. When it comes to the division of task in the sewing department, one team is composed of chairpersons (33.5%), assistant members (27.4%) and sub-assistant members (26.6%). The inspection of commodities as well as the enhancement of work on ironing for elaboration was divided as completion (12.6%) and finally the forms of task were made up of design sampling team (49%) and contracting team (51%). 2. Among the needle workers, as many as 60% employees had received technical education, which was by means of being passed down from the predecessors (81.6%). In terms of the period of education, from 2 to 5 years topped the list. The contents of education comprise patterning, sewing (65.2%) and ironing (20.3%). 3. The department of design takes charge of the report on working directions up to 88.2% and the working directions were used by 69.9 % of technicians. The directors of working conditions and methods were chiefs of designing department (37.7%) and those of sewing department (30.8%). The factors of defective goods were low-quality materials (50.0%), the deficiency in skills of workers. In terms of methods for preventing defects, technical education of workers, standardization of task and investment for factory automation were suggested. 4. As for their perception of present work, most of employees (80%) look upon it as a way of earning a living and 11% of them wanted to derive many things from their work. 59.2% of workers were satisfied with the product. When it comes to the incentive system provided by company, 67.0% responsed that it was not bad, and 23.9% evaluated it as 'satisfactory'.

• 한국전문물리치료학회지
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• 제21권4호
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• pp.34-39
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• 2014

The purpose of this study was to examine the effect of three cognitive tasks on gait at a preferred walking speed, and at a fast speed, using dual-task methodology. A total of 29 stroke patients participated in the study. All 29 subjects performed 2 motor tasks (10-meter walk task and timed up and go task each at a preferred and a fast speed) and three cognitive tasks [Stroop, word list generation (WLG), serial subtraction (SS)] under dual-task conditions [cognitive-motor interference (CMI)] in a randomized order. Gait speeds were measured in six different conditions. A repeated-measure analysis of variance was employed to compare the results of the Stroop training, WLG, and SS tasks during preferred and fast walking. A Bonferroni adjustment use for post hoc analysis. The level of statistical significance was set at ${\alpha}=.05$. A CMI effect occurred for performance of a 10-meter walking task at two different speed and a cognitive task (p<.05). Stroop had a significantly greater effect than SS and WLG (p<.05). The timed up and go task was affected when performed with fast walking speed during Stroop cognitive task (p<.05), but was not affected if performed with preferred walking speed during a cognitive task (p>.05). This study showed that CMI of Stroop can be used as a rehabilitation program for stroke patients.

• 대한인간공학회지
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• 제31권4호
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• pp.515-523
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• 2012

Objective: The aim of this study is to investigate users' intuitive stereotypes on non-touch gestures and establish the gesture dictionary that can be applied to gesture-based interaction designs. Background: Recently, the interaction based on non-touch gestures is emerging as an alternative for natural interactions between human and systems. However, in order for non-touch gestures to become a universe interaction method, the studies on what kinds of gestures are intuitive and effective should be prerequisite. Method: In this study, as applicable domains of non-touch gestures, four devices(i.e. TV, Audio, Computer, Car Navigation) and sixteen basic operations(i.e. power on/off, previous/next page, volume up/down, list up/down, zoom in/out, play, cancel, delete, search, mute, save) were drawn from both focus group interview and survey. Then, a user participatory design was performed. The participants were requested to design three gestures suitable to each operation in the devices, and they evaluated intuitiveness, memorability, convenience, and satisfaction of their derived gestures. Through the participatory design, agreement scores, frequencies and planning times of each distinguished gesture were measured. Results: The derived gestures were not different in terms of four devices. However, diverse but common gestures were derived in terms of kinds of operations. In special, manipulative gestures were suitable for all kinds of operations. On the contrary, semantic or descriptive gestures were proper to one-shot operations like power on/off, play, cancel or search. Conclusion: The touchless gesture dictionary was established by mapping intuitive and valuable gestures onto each operation. Application: The dictionary can be applied to interaction designs based on non-touch gestures. Moreover, it will be used as a basic reference for standardizing non-touch gestures.

• 감성과학
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• 제15권1호
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• pp.97-104
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• 2012

최근에 사용자에 의한 대량의 텍스트 데이터가 발생하면서 사용자의 정보, 의견 등을 분석하는 오피니언 마이닝이 중요하게 부각되고 있다. 오피니언 마이닝 중 특히 정서 분석은 제품, 사회적 이슈, 정치인에 대한 호감 등에 대한 개인적 의견이나 정서를 분석하여 긍정, 부정이나 행복, 슬픔 등의 정서를 분석하는 연구 분야이다. 정서 분석을 위해서 정서 차원 이론의 정서가와 각성 차원의 2차원 공간을 사용하고, 이 공간에서 정서가 분포하는 영역을 설정하여 매핑하는 방법을 사용한다. 그러나 기존에는 정서의 분포 영역을 임의로 설정하는 문제가 있었다. 본 논문에서는 이 문제를 해결하기 위해, 한국어 정서 단어 목록을 사용해 사용자 설문을 실시하여 2차원 상에 12개 정서의 분포를 구성하였다. 또한 2차원 상의 특정 정서 상태가 여러 개의 정서에 중첩되는 경우, 정서에 소속될 확률을 사용한 룰렛휠 방법을 사용하여 하나의 정서를 선택하는 방법을 제안하였다. 제안한 방법을 사용하여 텍스트에서 정서 단어를 추출하여 텍스트를 정서로 분류할 수 있다.