• Title/Summary/Keyword: jogging

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Subjective Evaluation of Frictional Sounds from Sportswear according to Speeds of Movements (운동 속도별 스포츠웨어용 직물의 마찰음에 대한 주관적 평가)

  • Yang, Yun-Jeong;Kim, Chun-Jeong;Jo, Gil-Su
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
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    • 2008.10a
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    • pp.25-29
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    • 2008
  • 본 연구에서는 스포츠웨어 착용 시 운동 속도별로 직물이 스치면서 발생하는 마찰음에 대한 음향특성과 주관적 감각 감성을 고찰하기 위하여, 3종류의 스포츠웨어용 직물 마찰음을 walking(0.63m/s), jogging(1.10m/s), running(0.98m/s)의 3가지 속도로 녹음한 후, 총음압(SPL)과 Loudness(Z), Sharpness(Z), Roughness(Z), Fluctuation Strength(Z)를 계산하였다. 이들 마찰음에 대한 주관적 평가는 9개 쌍의 형용사(시끄러운, 높은, 날카로운, 거친, 딱딱한, 탁한, 변화있는, 거슬리는, 불쾌한)에 대해 의미미분척도로 평가되었다. Jogging시 직물의 마찰음은 가장 시끄럽고 거슬리며 불쾌하게 평가되었고, running시의 직물 마찰음은 walking시나 jogging시의 마찰음보다 덜 시끄럽고 거칠기와 탁한 정도가 적으며 거슬리고 불쾌한 정도가 가장 적게 평가되었다.

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Frictional Sound Characteristics of vapor Permeable Water Repellent Fabric according to Finishing Methods at Different Frictional Speeds (투습발수 가공방법에 따른 직물의 마찰 속도별 소리 특성)

  • Han, A-Reum;Yang, Yun-Jeong;Jo, Gil-Su
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
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    • 2009.05a
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    • pp.131-134
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    • 2009
  • 본 연구는 가공방법이 다른 투습발수직물의 마찰 속도별 직물마찰음의 소리특성과 주관적 평가간의 관계를 분석하는 것을 목적으로 한다. 스포츠웨어용 투습발수직물 중 가공방법이 다른 4 종(PU 건식코팅, PU습식코팅, 시레가공, 라미네이팅)의 나일론 100% 시료를 대상으로 실험하였다. 마찰속도의 상세 설정이 가능한 직물소리 시뮬레이터 v. 4.0으로 제어가 되는 직물마찰음 발생장치를 사용하여 직물마찰음을 발생시켜 녹음하였다. 직물의 마찰 속도는 동작(walking, jogging, running)시 팔과 몸통 사이의 마찰속도를 분석하여 이 속도에 따라 직물마찰음을 발생시켰고, Sound quality system으로 7 가지(SPL, ${\triangle}L$, ${\triangle}f$, Loudness(Z), Sharpness(Z), Roughness(Z). Fluctuation Strength(Z)) 소리특성을 분석하였다. 주관적 평가는 9 개의 형용사 쌍에 대해 의미미분척도로 평가되었다. 소리특성 분석 결과, 속도별 소리특성은 가공방법에 따른 차이 없이 walking 시가 가장 덜 시끄러운 소리가 발생하였고, 가공방법에 따라서는 마찰속도에 따라 약간 차이가 있지만 라미네이팅가공을 한 시료가 가장 날카로운 소리를 발생시켰다. 주관적 평가 결과, '거슬리는'과 '불쾌한'의 감성에 대해서는 walking, jogging, running의 순서로, 시레가공, 라미네이팅, PU건식코팅, PU 습식코팅의 순서로 증가하였다.

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Development of The Moving Target Tracking Robot in Outdoor Environment (실외환경에서의 이동 목표 추종용 로봇의 개발)

  • 안철기;이민철
    • Journal of Institute of Control, Robotics and Systems
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    • v.8 no.11
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    • pp.954-962
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    • 2002
  • In a park or street, we can see many people jogging or walking with their dogs tracking their masters. In this study, an entertainment robot that imitates a dog's behavior is created. The robot's task is tracking a moving target that is recognized as the master. In order to design the robot, the ecological approach. in which the robot's goals and surroundings heavily influence its design, is used. A three-wheel type locomotion system is designed as the robot's physical structure which can follow a human jogging in outdoor space like a park. A sensor system which can detect the position of a master for the robot in the outdoor space, is developed. This sensor system consists of a signal transmitter which is at the hand of a master and some sensors which are mounted on the robot. The transmitter emits RF(radio frequency) and ultrasonic signals and the sensors detect the direction and distance from the robot to the transmitter by using the received signals. For the control architecture of the robot, a purely reactive behavior-based method is used in order to increase speed of response. The developed robot is evaluated through experiments conducted in indoor and outdoor environments.

Development of a Pet Robot Chasing a Moving Person in Outdoor Environment

  • Ahn, Cheol-Ki;Lee, Min-Cheol;Aoshima, Nobuharu
    • International Journal of Precision Engineering and Manufacturing
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    • v.6 no.4
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    • pp.67-72
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    • 2005
  • In a park or street, we can see many people jogging or walking with their dogs that are chasing their masters. In this study, a pet robot that imitates dog's behavior is developed. The task of robot is to chase a person who is recognized as the master. The physical structure and the sensor system are designed for the task and environment. A three-wheel type locomotion system is designed as the robot's physical structure which can follow a person who is jogging in outdoor environment like a park. A sensor system, which can detect relative position of the master to the robot in highly dynamic and hazardous worlds, is developed. This sensor system consists of a signal transmitter which is held by the master and ultrasonic sensor array which are mounted on the robot. The transmitter emits RF (radio frequency) and ultrasonic signals simultaneously. The ultrasonic sensor array detects the signals and calculates direction and distance between the robot and the transmitter. The developed RF-ultrasonic sensor is evaluated through experiments. A purely reactive behavior-based control architecture is used for the robot. The behavior control performance of the robot is assessed in outdoor and indoor tests.

A study on the design features for sports bra styles according to treadmill running speeds and bra cup sizes (러닝 속도와 브라 컵 사이즈에 따른 스포츠브라 디자인 요소 선택에 관한 연구)

  • Jang, Yumi;Chun, Jongsuk;Lee, Haedong;Han, Boram
    • The Research Journal of the Costume Culture
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    • v.21 no.1
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    • pp.81-92
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    • 2013
  • Many women feel pain in their breasts while running due to an excessively large degree of breast movement. Therefore, most sports bras pursue a reduction in breast movement. The purpose of this study is to investigate the breast movement reduction effect of a selection of sports bra designs according to the intensity of the sport and the breast size of the wearer. The study measured differences in the vertical movement of the nipple with 4 types of sports bras and 3 exercise speeds(4km/h, 7km/h, and 10km/h). Subjects included women in their 20s with bra sizes of either B cup(n=3) or C cup(n=3). The results of the study are as follows. Breast movement differed according to running speed and breast size; breast movement significantly increased starting with jogging speed(7km/h), and the C-cup group had a larger degree of vertical movement than the B-cup group. A superior effect on breast movement during jogging(7km/h) and sprinting(10km/h) was observed differently by bra cup sizes. To C-cup group, encapsulation-style sports bra, which provides horizontal support across the upper breast and padding inside the shoulder strap and bra cup to ease impact was most effective and next effective style was the compression-style bra with a princess line to cover the breasts solidly. Most style sports bra were effective in the B-cup group. Besides aforementioned encapsulation-style sports bra, the compression-style bra with a band, which presses the breasts against the chest wall, reduced breast movement effectively.

A Development of the Prototypes of Smart Sportswear for Trekking and Jogging (트레킹 및 조깅을 위한 스마트 스포츠웨어의 프로토타입 개발)

  • Kim Young-Jun;Kim Hoo-Sung;Seo Jung-Hoon;Lee Sun-Young;Lee Joo-Hyeon;Hwang Eun-Soo;Cho Hyun-Seung
    • Science of Emotion and Sensibility
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    • v.8 no.3
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    • pp.213-220
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    • 2005
  • The purpose of this study is to develop a modular model of smart clothing which can integrate various digital devices in clothing, maintaining the inherent attribute of clothing. For achieving this purpose, several technological devices for the smart clothing for listening to music, bio-monitoring, and environment monitoring were developed, through multidisciplinary cooperation. As the result, total four design prototypes of smart sportswear(trekking wear, jogging wear) for the application of entertainment and health care were suggested.

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Studies on the Quality of Domestic Industrial Products(I) (Jogger and Tennis shoes) (국내유통공산품(國內流通工産品)의 품질조사연구(品質調査硏究)(I) (조깅화와 테니스화))

  • Huh, D.S.;Kim, J.S.;An, B.K.;Seo, S.K.;Kim, K.J.
    • Elastomers and Composites
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    • v.21 no.4
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    • pp.309-322
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    • 1986
  • This survey reports on the extensive examination of the qualify of 14 jogging and tennis shoes separately, availavable in the domestic market, Both jogging and tennis shoes were catagorised in two groups, namely the general goods(less expensive ones) and the exclusive goods(expensive models). The detailed classification are shown below; The domestic products meet the general purpose just as that of the foreign products. Due to the adhesion technology, the domestic tennis shoes consist of rubber sole with natural leather upper;In fact, the desirable combination, as foreign products, must be polyurethane/natural leather. The expensive models were heavier than the less expensive ones. The greater weight difference of right and left shoes are shown in the expensive models than that of the less expensive ones. The moisture absorption ratio of the expensive model is far superior in comparison with the less expensive model. The reason is identified by the material supplyed to produce the expensive model consisted of the natural leather and proper parts. The abrasion resistance of the expensive models were excellent that of the less expensive ones, because the rubber soles were showed the properties better than polyurethane sole which was used in the less expensive model.

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Design and Manufacturing of Clean Room Garments Required at Ultra Clean Environment - Based on comparative analysis of Particle Release- (고청정 작업환경에 적합한 방진복 디자인 개발 -파티클 발생량을 중심으로-)

  • 박상희;송명견
    • Journal of the Korean Society of Clothing and Textiles
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    • v.25 no.6
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    • pp.1037-1045
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    • 2001
  • This research is done to design and manufacture prototype clean room garments to improve the product yield of the clean room processing. To assist the research, other papers and references on the same subject were collected for analysis. Also the researcher made interviews with the workers at the clean room. The prototype garments made for this project was compared against the commercially available clean room garments used in the industry. A set of test was conducted to measure particle release from the garments. The prototype clean room garments was manufactured after having considered all the aspects stated above, and tested for the level of particle release. The test subjects performed 4 different movements(marching, arms stretch, squat and rise, and jogging) while wearing the prototype garments and commercially available clean room garments. Particle counts produced by each movement were measured. The data collected was statistically analyzed. The followings are the result of the test. 1) Overall, the prototype garments yielded less particle release.(p<0.001) 2) It showed greatest difference of particle counts for jogging(p<0.001) and squat and rise(p<0.001). In the arms stretch test. the prototype garments was also more effective in controling the particle, however, in the marching test. no significant difference was detected. 3) The prototype garments had less particle release in upper(p<0.001), middle(p< 0.001), and lower level(p<0.01) than the commercially available clean room garments. Manufacturing a new fabric for the clean room processing is important, but this research proves that the design of the clean room garments also determines the efficiency garments in the particle control. Therefore the same fabric can perform differently according to how it is designed. Improving the design will also improve the 7article control and reduce the cost of research. Eventually, the manufacturers will increase the product yield.

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Development and Verification of the System for Heart Rate Detection During Exercise (운동 중 심박수 검출 시스템 개발 및 검증)

  • Jeon, Young-Ju;Shin, Seung-Chul;Jang, Yong-Won;Kim, Seung-Hwan
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.56 no.9
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    • pp.1688-1693
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    • 2007
  • The aim of this paper is to develop and verify the system which can detect heart rate during exercise by using conductive fabric electrode and transportable measurement module. The experiment was performed under 4 conditions(resting, walking, jogging, running) and 18 subjects data are used. By using the ECG measurement system used in cardiac stress testing as reference value in order to verify the accuracy of the developed system, the relative error and correlation coefficient was calculated for each subject at every 3 seconds. The results have shown that the high correlation between the developed system and the reference system for detecting heart rate during exercise. Relative error and correlation coefficient are 2.27% and 0.9877, respectively. 7 subjects data are omitted in these calculations because of severe noises. Therefore, it is expected that this system could be used as a health monitoring system in ubiquitous environment in the future.

Real-time Fall Detection with a Smartphone (스마트폰을 이용한 실시간 낙상 감지)

  • Hwang, Soo-Young;Ryu, Mun-Ho;Kim, Je-Nam;Yang, Yoon-Seok
    • Journal of Information Technology Services
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    • v.11 no.sup
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    • pp.113-121
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    • 2012
  • In this study, a real-time fall detection system based on a smartphone equipped with three-axis accelerometer and magnetometer was proposed and evaluated. The proposed system provides a service that detects falls in real time, triggers alarm sound, and sends emergency SMS(Short Message Service) if the alarm is not deactivated within a predefined time. When both of the acceleration magnitude and angle displacement of the smartphone attached to waist belt are greater than predefined thresholds, it is detected as a fall. The proposed system was evaluated against activities of daily living(walking, jogging, sitting down, standing up, ascending stairs, and descending stairs) and unintended falls induced by a proprietary pneumatic-powered mattress. With the thresholds of acceleration magnitude 1.7g and angle displacement $80^{\circ}$, it showed 96.5% accuracy to detect the falls while all the activities of daily living were not detected as fall.