• Title/Summary/Keyword: Joint development

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Reliability Analysis of Finger Joint Range of Motion Measurements in Wearable Soft Sensor Gloves (웨어러블 소프트 센서 장갑의 손가락 관절 관절가동범위 측정에 대한 신뢰도 분석)

  • Eun-Kyung Kim;Jin-Hong Kim;Yu-Ri Kim;Ye-Ji Hong;Gang-Pyo Lee;Eun-Hye Jeon;Joon-bum Bae;Su-in Kim;Sang-Yi Lee
    • PNF and Movement
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    • v.21 no.2
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    • pp.171-183
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    • 2023
  • Purpose: The purpose of this study was to compare universal goniometry (UG), which is commonly used in clinical practice to measure the range of motion (ROM) of finger joints with a wearable soft sensor glove, and to analyze the reliability to determine its usefulness. Methods: Ten healthy adults (6 males, 4 females) participated in this study. The metacarpophalangeal joint (MCP), interphalangeal joint (IP), and proximal interphalangeal joint (PIP) of both hands were measured using UG and Mollisen HAND soft sensor gloves during active flexion, according to the American Society for Hand Therapists' measurement criteria. Measurements were taken in triplicate and averaged. The mean and standard deviation of the two methods were calculated, and the 95% limits of agreement (LOA) of the measurements were calculated using the intraclass correlation coefficient (ICC) and Bland-Altman plot to examine the reliability and discrepancies between the measurements. Results: The results of the mean values of the flexion angles for the active range of motion (AROM) of the finger joints showed large angular differences in the finger joints, except for the MCP of the thumb. In the inter-rater reliability analysis according to the measurement method, the ICC (2, 1) value showed a low level close to 0, and the mean difference by the Bland-Altman plot showed a value greater than 0, showing a pattern of discrepancy. The 95% LOA had a wide range of differences. Conclusion: This study is a preliminary study investigating the usefulness of the soft sensor glove, and the reliability analysis showed a low level of reliability and inconsistency. However, if future studies can overcome the limitations of this study and the technical problems of the soft sensor glove in the development stage, it is suggested that the measurement instrument can show more accurate measurement and higher reliability when measuring ROM with UG.

Experimental Study on the Precast Concrete Joint using Re-bar Debonding and Cutting Technique (철근 비부착 및 절단 기법을 사용한 PC 접합부의 실험적 연구)

  • Yi, Waon-Ho;Moon, Jung-Ho;Lee, Yong-Jae;Lee, Han-Jun
    • Journal of the Korean Society of Hazard Mitigation
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    • v.2 no.4 s.7
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    • pp.131-141
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    • 2002
  • Precast concrete (PC) panels are often used as retaining walls to support soil pressure. In such a case, the panels should be connected at the location where PC panels meet with a buttress. However, it is not easy to provide enough development length for the reinforcing steels due to the limited width of the buttress. If it happens, the width of buttress should be increased as large enough although it is not desirable. The critical section required for providing the development length is always located where the flexural moment is maximum. Thus it is the place the buttress width ends. Also it is the place that the reinforcing steels stressed to maximum. However, it is possible to make differentiate between the maximum moment location and the most stressed location of reinforcing steels. It means that the most stressed location of reinforcing steels, the critical section, can be moved to the other place where the moment is not maximum. New critical location will have less moment than that of buttress width ends. In consequence, the development length would be longer than that of the typical way of construction. Debonding or cutting technique make it possible to reduce the moment strength of a section. Therefore reinforcing steels are debonded or cut to have a desired flexural strength at a desired place. In this study, five test specimens in full scale were erected to examine the effects of critical section movement in PC panel joints. Test parameters were the length variations of debonded and cut reinforcing steels. The test results showed that the debonding or cutting technique could be used to lengthen the development length in the joint of PC panels.

A Study on the Change of Environment in East Asia and the Development Strategy of Korean Shipping and Shipbuilding Industry in Busan Port (동아시아의 환경변화와 한국해운·조선산업의 중흥과 부산항의 발전전략에 관한 연구)

  • Seo, Munsung
    • Journal of Korea Port Economic Association
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    • v.35 no.1
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    • pp.139-162
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    • 2019
  • In the case of Korea, policy support for shipping companies is limited, and the financial support should address the scale and period of support. Comprehensive measures are needed to boost the chances of reviving the industry. In order to secure competitiveness, the shipping companies need to make continuous efforts, prepare for the future by strengthening environmental regulations, and ensure that they have the ability to be flexible in their responses. The shipbuilding industry witnessed some improvement last year amid severe recession, but reforms are needed to address external and internal structural problems; further, to gain the characteristics of future leading industries, it is necessary to secure core technologies, as well as differentiated and specialized industrial competitiveness among rival countries through joint government intervention and joint R&D investment. Taking these steps will ensure that it has environment-friendly vessels and economic shipbuilding capabilities. The competitiveness of Busan Port should enable the utilization of the geopolitical characteristics of East Asia and contribute to: regional economic revitalization; development of its status as hub port; and securing the position of developed countries in East Asian logistics. For this purpose, it is necessary to establish a strategy to: expand the usability of shipowners/carriers; improve the quality of port operations; improve the portability of the smart system; expand the port of mega-ocean carriers; speed up port operations; and create low-cost ports. The establishment of a network of four countries will also require long-term global linkages. For example, there is a need to establish a logistics network between Eurasia and the European region, which will use the Russian Land Bridge System, as well as that of China.

A study about development of hand-piece for orthopedic surgery drived by battery (배터리 구동방식 정형외과용 핸드피스 개발에 대한 연구)

  • Son, Chang-Woo;Jang, Sung-Hui;Jang, Young-Ju;Seo, Tae-Il
    • Design & Manufacturing
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    • v.9 no.1
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    • pp.31-35
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    • 2015
  • Recently, life expectancy increased in the development of medicine, the need for health has increased. Market for medical equipment is growing rapidly to an increase in the interest in health and aging worldwide. It is a device intended for ultra sensitive cleavage process of bone during joint replacement surgery on a technical advanced surgery, finishing, and hole. Domestic demand of the hand piece is a necessary condition on an ongoing basis. However, hand piece was made on the basis of the experience of many years in the country Japan, Germany, and the United States has spread to more than 90% domestic market. Feel the need for the development of the hand piece in the country, many companies are trying to in-house production hand piece. In an attempt to solve the problems with the hand piece of the present, in this paper, it was supposed to be a study of rechargeable hand piece to replace the existing pneumatic.

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A Study on the Factors Influencing the Satisfaction of Online Service System on the International Research Cooperation

  • Noh, Younghee;Chang, Rosa
    • International Journal of Knowledge Content Development & Technology
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    • v.10 no.2
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    • pp.71-90
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    • 2020
  • Recently, as the pandemic COVID-19 has been spread worldwide, international research cooperation has come to the fore to overcome the crisis and develop treatments. Currently, in Korea, with the support from the Ministry of Education and the Korea Research Foundation, the International Research Cooperation Information Center operates an online service system for international research cooperation as a venue for sharing results among international research cooperation researchers and invigorating such research. However, since Korea's performance in international research cooperation is still poor, actively pursuing measures to improve professionalism and diversity based on international cooperation is deemed necessary. Therefore, in this study, factors influencing the level of satisfaction with international research cooperation online service systems were identified, and measures to increase the satisfaction of international research cooperation online service were proposed based on the analysis results. Design of the system quality factors, accuracy and consistency of the information quality factors, and professionalism of the service quality factors were verified to have a significant effect on the satisfaction with international research cooperation online service systems. Accordingly, further strengthening the aspects of design, accuracy, consistency, and professionalism was proposed as a way to increase the satisfaction of international research cooperation online service systems.

The Analysis of Factors Affecting Test and Evaluation in Domestic Purchase Program (국내 구매사업 시험평가에 미치는 영향요인 분석)

  • Park, Jong Wan
    • Journal of Applied Reliability
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    • v.15 no.4
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    • pp.222-232
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    • 2015
  • Purpose : The purpose of this study is to analyse affecting factors of Test and Evaluation and to improve the institution of Test and Evaluation in the Domestic purchase program. Methods : The domestic acquisition program is currently small in terms of size, but it is gradually increasing every year. Still, the domestic purchase program has insufficient regulations and procedures compared to the other procurement methods including research & development. Various problems are likely to occur between test and evaluation group, and defense industries regarding the regulations during Test & Evaluation. Therefore, the regulations and methods need to be amended to upgrade the current domestic purchase program into an effective and flawless one. In this paper, six variables have been chosen by the help of experts working in Ministry of National Defense (MND), Joint Chiefs of Staff (JCS), Army Headquarters and DAPA. Results : The six variables are effectiveness of proposal evaluation, fairness of test and evaluation, sufficiency of operational capabilities, seasonal period of test and evaluation, fulfillment in Integrated Logistics Support (ILS) of the industries, and guaranteeing appropriate environment for related enterprises' participation. Conclusion : This paper can help defense industries to enhance their development capabilities, and to perform tests more fairly and effectively considering the key factors identified in this research.

Development of Nitrogen Charging Trailer for Aircraft Improved Operability (운용성을 개선한 항공기용 질소충전트레일러 국산화 개발)

  • Park, Hyo-Jin
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.46 no.6
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    • pp.513-518
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    • 2018
  • Nitrogen charging trailer applied to KUH-1 is a device to charge Nitrogen in main front wheel buffer, tail bumper buffer, brake accumulator and tire of aircraft. As the name suggests, it is a device that has mobility along with nitrogen charging. Originally supplied by Tronair in the United States, it was imported from Korea, and the locally developed product not only satisfies the performance of the existing product, but also designed to be easier than the product introduced in the operation. It was selected as the joint investment project of the 15th civilian government building, and development needs analysis and test evaluation were carried out under the support of development and management of Korea Aerospace Industries and Defense Agency for Technology and Quality.

Implication from Technology Innovation, Growth Strategy and Industrial Policy of Chinese Automobile Industry (중국 자동차 산업의 기술혁신, 성장전략 및 산업정책의 시사점)

  • Baek, Seoin;Lee, Seongmin;Chang, Hyunjoon
    • Knowledge Management Research
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    • v.17 no.2
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    • pp.75-101
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    • 2016
  • Since 2009, China has become biggest automobile supplier and consumer all over the world. Chinese government and automobile firms have been executed strategic and aggressive industry policy and business strategy for nurturing automobile industry as a core manufacturing industry. However, can we assure that all of these policy and strategy have positive effect on Chinese automobile industry? For fulfilling this gab, our research examined the government policy and firm's strategy in different development stage of Chinese automobile industry. According to research result, at initial stage(1983-1996), Chinese automobile industry has grown by technological learning and reverse engineering from Soviet Union, Japan and Germany. In rapid growing stage(1996-2009), Chinese automobile firms have succeed to develop and produce own brand product with 100% own technology. And this kind of quantum jump in technology development was conducted by joint venture policy and M&A strategy. However, at the fourth stage(2010-), Chinese government and firms have over invested and focused on Electric Vehicle manufacturing without developing core technology or SW. Overall, the old-fashioned policy and strategy module in manufacturing industry of China could have negative effect on its industry development.

Landscape Analysis on simulation studies are used to deliberation landscape - Focuse on the Apartment Gyeonggi-do landscape simulation analysis - (경관심의에 사용되는 경관시뮬레이션 실태분석 연구 - 경기도 공동주택사업 경관시뮬레이션 분석을 중심으로 -)

  • Lee, Im Jung;Choi, Joo Young
    • KIEAE Journal
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    • v.14 no.4
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    • pp.69-79
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    • 2014
  • Adverse effects resulting from the development of the environment and to minimize damage to the natural environment and the desire for pleasant scenery and the sense of raising more awareness about May 17, 2007 in accordance with the scenery method is established by each municipality landscape management and landscape planning committee Configure the district planning officer for development projects, including enhancing deliberation scenery method 7 February 2014 and revised in urban areas is more than $30,000m^2$ urban planning landscape projects are all considered by a committee mandated to landscape receive a defined landscape plan for the development was enhanced. Gyeonggi Province in 2007 after the enactment of the scenery method for district planning and landscape planning by strengthening the district planning consideration during deliberations landscape simulation by selecting the view that the proposed mandatory hearing officer from the Joint Committee on Urban construction was done. In this study, Gyeonggi-do district planning business point of view the characteristics of the landscape planning and landscape planning of the center of analysis and as a basis for the evaluation presented.

Investigation on the Organizational Structure for Overseas Conservation Centers - Focused on the Italian Conservation Centers - (해외 문화재보존기관 운영현황 -이탈리아 문화재보존기관을 중심으로-)

  • Yi, Hyeon-Ju;Yu, Jae-Eun;Seo, Min-Seok
    • 보존과학연구
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    • s.29
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    • pp.239-254
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    • 2008
  • In this division, regarding the establishment of operation system of Conservation Science Center, we have tried to find out research trends and advanced operation system of Italian conservation centers, which play an active part in the field of restoration of cultural properties internationally. And the results will be utilized for the establishment of Conservation Science Center. Italy is a country having a long history of restoring cultural properties. In this field, it is largely divided into research & development institutes. And restoration institute and they are operated under system in which research & development institute implement research projects for restoring cultural properties and restoration specialists take receive the results and utilize them. They have different business processing system compared to Conservation Science Center which will implement research-development and restoration(conservation treatment) concurrently. Each institute, carrying out differentiated and specialized research projects per region, maintains smooth cooperative relationship with national institutes, neighboring universities and even afflated schools through horizontal-mutual collaboration joint research, and sharing of equipments, in the field of cooperation between national institutes, cooperation with neighboring universities, and connection to belonging schools. There institutes show us a good example which can be utilized in the future organizational structure of Conservation Science Center. It is expected that their operation system and possessed technologies such as utilization of human resources pool and cooperation with relevant fields can be used usefully in the management and operation of Conservation Science Center.

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