• Title/Summary/Keyword: hands-on

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Basic Pattern Development of Haptic Gloves from 3D Data (3차원 데이터를 활용한 장갑형 햅틱(Haptic)용 기본 패턴 개발)

  • Kim, So-Young;Lee, Ye-Jin;Park, Hye-Jun
    • Journal of the Korean Society of Clothing and Textiles
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    • v.32 no.8
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    • pp.1226-1232
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    • 2008
  • Tight fitting glove pattern is necessary to convey oscillation to the skin from the sensors attached on the hands as found in the haptic device. However, it has been difficult to provide customized glove pattern for haptic device so far. The objective of the paper is to develop a 2D pattern that fit tightly to hands by adopting the recent 3D technology to the clothing science. In this study, the user graphic interface application software(2C-AN) for the semi-automatic garment pattern generation has been utilized to develop the methodology of construct tight-fitting glove pattern for the hand in natural position. A basic pattern was developed directly from the 3D images of hand and the verification of the proposed pattern was also provided.

Force Control of Robot Fingers using Series Elastic Actuators (직렬 탄성 액츄에이터 기반의 로봇 손가락의 힘 제어)

  • Lee, Seung-Yup;Kim, Byeong-Sang;Song, Jae-Bok;Chae, Soo-Won
    • Journal of Institute of Control, Robotics and Systems
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    • v.18 no.10
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    • pp.964-969
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    • 2012
  • Robot hands capable of grasping or handling various objects are important for service robots to effectively aid humans. In particular, controlling a contact force and providing a compliant motion are essential when the hand is in contact with objects. Many dexterous robot hands equipped with force/torque sensors have been developed to perform force control, but they suffer from the complexity of control and high cost. In this paper, a low-cost robot hand based on SEA (Series Elastic Actuator), which is composed of compression spring, stretch sensor, and wire, is proposed. The grasping force can be estimated by measuring the compression length of spring, which would allow the hand to perform force control. A series of experimentations are carried out to verify the performance of force control of the proposed robot hand, and it is shown that it can successfully control the contact force without any additional force/torque sensors.

Personal Hygiene Practices related to Genito-urinary Tract and Menstrual Hygiene Management in Female Adolescents (여자 청소년의 비뇨생식기 관련 개인위생과 월경기 위생 관리)

  • Ahn, Sukhee;Cho, Kyungmi
    • Women's Health Nursing
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    • v.20 no.3
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    • pp.215-224
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    • 2014
  • Purpose: The study was to survey personal hygiene practice related to genito-urinary tract and menstrual hygiene management in female adolescents in order to obtain basic information for health education. Methods: With a descriptive survey design, 389 adolescents were recruited via convenience sampling in Korea. Survey instrument was the feminine and menstrual hygiene practice and perception of vaginal douching. Data were collected from a self-administered structured questionnaire. Results: Mean age of adolescents was 16.09 and menarche was at 13.21. While washing hands after urination/defecation was highly performed, wipe front to back and wash with soap and water were reported as being not well done. Twenty-eight percent reported douching habit. More positive beliefs about douching were reported by adolescents who practiced douching. Menstrual hygiene management was very appropriate with changing sanitary pads regularly with hand washing; but less performed for limiting bathing activity during menstrual periods and washing hands after activity of genito-urinary area. Conclusion: Some adolescents practiced inadequate hygiene practices especially for body cleansing during menstrual period and vaginal douching. It is important to develop and implement school health education programs on feminine and personal hygiene for adolescents to help them perform adequate health behaviors.

NEW PHARMACOLOGICAL, CLINICAL, MICROBIOLOGICAL AND ANALYTICAL TESTS MADE WITH VARIOUS GINSENG PREFARATIONS OF THE WORLD MARKET

  • Rueckert Karl Heinz
    • Proceedings of the Ginseng society Conference
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    • 1978.09a
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    • pp.85-92
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    • 1978
  • The aim of the double blind test was to assess the prophylactic and therapeutic efficacy of the preparation GINSANA, containing the standardized ginseng extract PHARMATON G115,. The determination was carried out with special emphasis on the following features : general physical condition, physical performance, mental performance, enjoyment of life/mood, concentration and memory, as well as sleeping habits. Sixty test persons took part in the study, men and women between the ages of 22 and 80. The 90-day test was carried out in the form of a double blind experiment. Experimental measurements were made and the persons were also questioned. The reaction time, the optical merging threshold, the coordination of both hands and the recovery quotients, as well as the recovery rates were analyzed. The results for the serum group were clearly better than those for the placebo group, particularly for the characteristics: general physical condition, physical performance and sleeping habits. The results of the test methods used, especially with regard to the reaction time, the coordination of both hands, the recovery quotient and the recovery period, permit the following conclusion to be drawn: when administered for several weeks, GINSANA has a positive action, in the sense of an activation of the entire personality by the ginseng glycosides contained in the standardized Extracts G115.

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Comparison of Manual Chest Compression and Chest Compression Using AutoPulseTM Device in Pre-Hospital Simulation Cardiac arrest

  • Ko, Jang-Sik;Kim, Yong-Seok;Lim, Se-Young;Kim, Soo-Tae;Kim, Keun-Hee;Hwang, Sung-Hoon;Cho, Byung-Jun
    • Journal of the Korea Society of Computer and Information
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    • v.23 no.10
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    • pp.151-156
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    • 2018
  • The purpose of this study was to find more effective method through comparison of manual chest compression and chest compression using $AutoPulse^{TM}$ device in pre-hospital simulation cardiac arrest. In order to achieve the purpose of the study, ambulance workers did two different style CPR in pre-hospital simulation cardiac arrest. Data analyzed by T test and ANOVA. Findings of this study are as follows. Firstly, manual chest compression is more effective than chest compression using $AutoPulse^{TM}$ device on scene. Secondly, chest compression using $AutoPulse^{TM}$ device is more effective manual chest compression in ambulance and in elevator. In conclusion, these findings provide strong evidence for the importance of hands off time and stable CPR before hospital arrival in explaining patient's prognosis. Therefore, strategies to conduct precise hands off time and stable CPR are needed to improve patient's prognosis.

Robot Mobile Control Technology Using Robot Arm as Haptic Interface (로봇의 팔을 햅틱 인터페이스로 사용하여 로봇의 이동을 제어하는 기술)

  • Jung, Yu Chul;Lee, Seongsoo
    • Journal of IKEEE
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    • v.17 no.1
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    • pp.44-50
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    • 2013
  • This paper proposed the implementation of haptic-based robot which is following a human by using fundamental sensors on robot arms without additional sensors. Joints in the robot arms have several motors, and their angles can be read out by these motors when a human pushes or pulls the robot arms. So these arms can be used as haptic sensors. The implemented robot follows a human by interacting with robot arms and human hands, as a human follows a human by hands.

The survey study on working conditions and industrial safety & health of foreign workers (외국인근로자의 근로환경 및 안전보건실태 조사 연구)

  • Yi, Kwan-Hyung;Cho, Hm-Hak
    • Journal of the Korea Safety Management & Science
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    • v.14 no.1
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    • pp.53-63
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    • 2012
  • The purpose of this study is to grasp foreign worker's industrial safety and health state, which find out the improvement to secure the basic safety net for foreign workers. We have investigated 2,050 workers through direct interviews during the period from April 12, 2010 to May 31, 2010. And the result of analysis, foreign worker's daily average working time is 10.6 hours(40.8% workers in total work 10~12 hours), the extent of exposure to harmful and dangerous working environment is 'the position which cause pain in neck, waist, hands, shoulders, legs'(69.3%), 'repetitive hands and arms movement'(66.1%). It showed 'experience of accident damage or disease related work'(27.3%), 'never apply for industrial accident compensation' is revealed high at 73%. As a result of completing a safety health education for a year, it showed 'never educated'(40.2%), 'the institute that foreign workers have used for help and advice is the foreign worker's support center'(61.9%) Thus, hiring foreign workers in the company are small in site, the environment is too harmful and dangerous. In addition, no safety and health managers, legally blind spot located in the health and safety, because it is an urgent meet for these measures to improve.

The Effects of Relaxation Music on the Body Flexibility and Stress (이완음악이 신체유연성과 스트레스에 미치는 영향)

  • Lee, Kwang-jae;Kim, Dong-hun
    • Journal of Korean Physical Therapy Science
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    • v.22 no.2
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    • pp.37-42
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    • 2015
  • Background : The purpose of this study is to identify how the relaxation music listening during exercise influences body flexibility and stress. Methods : Twenty healthy adults 20s and 30s who lack of body flexibility were recruited and each subjects performed exercise during the relaxation music listening or no listening. Bach, aria of linear G was used as the relaxation music. The experiment was conducted for 4 weeks. In this study, PASW ver 18.0 was utilized to perform non-parametric tests for comparisons. Result : The result with respect to the dependent variables are as follows: When non-parametric tests were conducted to compare body flexibility at the test of the right ear touch behind head by left hand and the stretching hands test between the two groups after exercise, they showed significant differences in statistical terms (p<.05). Conclusion : From the above results of the study it was found that the application of the relaxation music during the exercise is effective, it improved the body flexibility of the right ear touch behind head by left hand and the stretching hands more than the exercise without the relaxation music did. The outcome of the experiment may provide basic data for developing an effective way to increase body flexibility.

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A Design of Multi-channel Speech Pickup Embedded System for Hands-free Comuunication (핸즈프리 통신을 위한 다중채널 음성픽업 임베디드 시스템 설계)

  • Ju, Hyng-Jun;Park, Chan-Sub;Jeon, Jae-Kuk;Kim, Ki-Man
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.11 no.2
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    • pp.366-373
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    • 2007
  • In this paper we propose a multi-channel speech pickup system for calling quality enhancement of hands-free communication using ALTERA Nios-II processor. Multi-channel speech pickup system uses Delay-and-Sum beamformer with zero-padding interpolator. This paper implements speech pickup system using the Nios-II processor with real-time I/O data processing speed. The proposes speech pickup embedded system shows a good agreement with those of computer simulation(MATLAB) and conventional DSP processor(TMS320C6711) result. The proposed method is effective more than previous methods in cost and design processing time. As a result, LE(Logic Element) of hardware used 3,649/5,980(61%) on a chip.

Analysis of Working Posture for Construction Workers Using OWAS Method (OWAS 기법을 활용한 건설업 근로자의 작업 자세 분석)

  • Eom, Ran-i;Lee, Yejin
    • Fashion & Textile Research Journal
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    • v.20 no.6
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    • pp.704-712
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    • 2018
  • This study analyzed working postures using the Ovako Working Posture Analysis System (OWAS) to improve work clothes for construction workers. A video taken at a construction work site was stopped at regular intervals and the postures of relevant body parts proposed by OWAS was recorded. Additionally, based on analysis of the working postures code, the level of work action for each postures was classified from stage I to IV. General workers frequently straightened or bent forward at the waist, and used their legs to stand, bend, or walk. Wood workers moved extensively from the waist, keeping their legs relatively straight and their arms held below their shoulders, repeatedly tapping with a hammer weighing less than 10.0kg. Rebar bending workers mainly bent forward at the waist, with both legs bent or standing with one leg bent. Rebar transport and fixing workers walked with the waist straight, and occasionally one or both hands held above the shoulders. Their work also involved holding a hook, which weigh less than 10.0kg, in their hands, and the difficult task of lifting and placing long rebars, which weigh from 10.0 to 20.0kg or more. Concrete pouring workers bent or twisted their back to the side. Therefore, this study suggests that design goals should be different when developing workwear for each type of worker.