• Title/Summary/Keyword: Arm

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A Clothing-Ergonomics Study on the Variation of Upper Arm Skin Surface According to Arm Movements - on the arm movements to the vertical direction in front and in side - (신체동작에 따른 상지형태변화에 관한 피복인간공학적 연구 - 전방수직동작과 측방수직동작을 중심으로 -)

  • Kim Hae-Kyung;Park Eun-Joo;Jeon Eun-Kyung
    • Journal of the Korean Society of Clothing and Textiles
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    • v.13 no.1 s.29
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    • pp.49-58
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    • 1989
  • A clothing-erogonomics study was performed to investigate the difference of the upper arm skin skin surface and the relationship among the three aspects of upper arm (height of sleeve rap, sleeve width and armhole girth) by changing arm movements. Plaster cast was used for this experimental research. Arm movements consist of 9 types; just carmly standing on ($0^{\circ}$), and each 4 types ($45^{\circ},\;90^{\circ},\;135^{\circ},\;180^{\circ}$) to the vertical direction in front and in side. The results were as follows; 1) As the arm-movement angle increased, the height of sleeve cap decreased and that ratio was largest in the portion A-B3. 2) The steeve width was enlarged with the increment of movement angle in all portions of upper arm except B1-B5. 3) As increasing the movement angle, the whole armhole girth decreased and the ratio o(front armhole girth (F-A) was larger than that of back. 4) In the vertical direction in front, the height o( the sleeve caps was larger, the sleeve widths were smaller than in the vertical direction in side in all movement types, but there was no significant difference in arm-hole girth between the two cases. 5) There were significantly negative relationships between measurements in height of sleeve cap and those in sleeve width, and also between those in height of sleeve cap and in arm-hole girth. And significantly positive relationships were found between neasurements in height of sleeve cap and those in arm-hole girth.

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Dose Comparison between Fast Low Dose C-arm CT and DSA (Fast Low Dose C-arm CT와 DSA의 선량 비교)

  • Kim, Chan-woo;Kim, Jae-Seok
    • Journal of the Korean Society of Radiology
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    • v.14 no.5
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    • pp.613-618
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    • 2020
  • The average dose of Fast Low Dose C-arm CT used during hepatic arterial chemoembolization was compared with the average dose of DSA, and the exposure dose was analyzed by analyzing the average dose for each test technique in the total accumulated dose. 50 patients were randomly selected at our clinic and compared with Fast Low Dose C-arm CT, DAP and Air Kerma of DSA, and the accumulation of four test techniques (DSA, Fast Low Dose C-arm CT, Roadmap, Fluoroscopy) The proportion of dose (DAP, Air Kerma) was analyzed. For statistical comparative analysis, the corresponding sample T test and ANOVA test (post hoc test: Tukey) were performed using the statistical program SPSS 20.0. Fast Low Dose C-arm CT showed statistically significantly lower average dose (DAP, Air Kerma) than DSA. Reducing the number of tests for DSA can reduce the patient's exposure to medical radiation.

Profile Guided Selection of ARM and Thumb Instructions at Function Level (함수 수준에서 프로파일 정보를 이용한 ARM과 Thumb 명령어의 선택)

  • Soh Changho;Han Taisook
    • Journal of KIISE:Software and Applications
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    • v.32 no.3
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    • pp.227-235
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    • 2005
  • In the embedded system domain, both memory requirement and energy consumption are great concerns. To save memory and energy, the 32 bit ARM processor supports the 16 bit Thumb instruction set. For a given program, the Thumb code is typically smaller than the ARM code. However, the limitations of the Thumb instruction set can often lead to generation of poorer quality code. To generate codes with smaller size but a little slower execution speed, Krishnaswarmy suggests a profiling guided selection algorithm at module level for generating mixed ARM and Thumb codes for application programs. The resulting codes of the algorithm give significant code size reductions with a little loss in performance. When the instruction set is selected at module level, some functions, which should be compiled in Thumb mode to reduce code size, are compiled to ARM code. It means we have additional code size reduction chance. In this paper, we propose a profile guided selection algorithm at function level for generating mixed ARM and Thumb codes for application programs so that the resulting codes give additional code size reductions without loss in performance compared to the module level algorithm. We can reduce 2.7% code size additionally with no performance penalty

Study on the Classificaition of Shoulder-Arm Pain in the Pre-Studies on Clinical Treatment of Shoulder-Arm Pain (견비통 치료 관련 선행연구에서 견비통의 유형 분류에 관한 연구)

  • Kim, Hong-Jae;Kim, Myung-Dong
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.25 no.1
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    • pp.8-18
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    • 2011
  • To have effective treatment for shoulder arm pain, we searched the cause, symptom, etiology, classification of the pain areas, acupuncture points, and muscles along the meridians, and acquired the following results. Shoulder-pain is mainly divided into the malfunction of viscera and entrails, damage due to the weakness of essence and qi, abnormal status of muscle function, change of joints, disease in the nerve and vessel, and the internal injury due to seven modes of emotions. Pain of shoulder joints are pain in the local area of shoulder joints, referred pain of shoulder, neck, and shoulder-arm, numbnes and swelling of muscle, and muslce weakness. Shoulder-arm pain is classified as four types of pain: shoulder-joint pain, shoulder-back pain, shoulder-chest pain, and shoulder-arm-elbow pain. And shoulder-arm-elbow pain is again divided into the shoulder-blade pain, shoulder-arm pain, shoulder-elbow pain. The related meridians on shoulder pain are the three yin meridians of hand, Kidney Meridian, Conception Meridian, three yang meridians of hand, Bladder Meridian, Governor Meridian Acupuncture points for shoulder pain are in the acupuncture points of the 10 meridians and a-shi points. Thre related meridian muscles on shoulder-pain are the three yin and yang meridians of hand, and their related muscles are the ones that are connected with the front, back, and chest side muscles of shoulder joints, and the ones that are connected with the front and back side muscles of arm.

Risk assessment of vibriosis by Vibrio cholerae and Vibrio vulnificus in whip-arm octopus consumption in South Korea

  • Oh, Hyemin;Yoon, Yohan;Ha, Jimyeong;Lee, Jeeyeon;Shin, Il-Shik;Kim, Young-Mog;Park, Kwon-Sam;Kim, Sejeong
    • Fisheries and Aquatic Sciences
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    • v.24 no.6
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    • pp.207-218
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    • 2021
  • This study evaluated the risk of foodborne illness from highly pathogenic Vibrio spp. (Vibrio vulnificus and V. cholerae) by raw whip-arm octopus (Octopus minor) consumption. In total 180 samples of raw whip-arm octopus were collected from markets and examined for the prevalence of V. vulnificus and V. cholerae. Predictive models describing the kinetic behavior of Vibrio spp. in raw whip-arm octopus were developed, and the data on amounts and frequency of raw whip-arm octopus consumption were collected. Using the collected data, a risk assessment simulation was conducted to estimate the probability of foodborne illness raw whip-arm octopus consumption using @RISK. Initial contamination levels of Vibrio spp. in raw whip-arm octopus were -3.9 Log colony-forming unit/g, as estimated by beta distribution fitting. The developed predictive models were appropriate to describe Vibrio spp. in raw whip-arm octopus during distribution and storage with R2 values of 0.946-0.964. The consumption frequency and daily consumption amounts of raw whip-arm octopus per person were 0.47% and 57.65 g, respectively. The probability of foodborne illness from raw whip-arm octopus consumption was estimated to be 8.71 × 10-15 for V. vulnificus and 7.08 × 10-13 for V. cholerae. These results suggest that the risk of Vibrio spp. infection from raw whip-arm octopus consumption is low in South Korea.

Design and Control of a Wearable Robot (Wearable Robot Arm의 제작 및 제어)

  • Jeong, Youn-Koo;Kim, Yoon-Kyong;Kim, Kyung-Hwan;Park, Jong-Oh
    • Proceedings of the KSME Conference
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    • 2001.06b
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    • pp.277-282
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    • 2001
  • As human-friendly robot techniques improve, the concept of the wearability of robotic arms becomes important. A master arm that detects human arm motion and provides virtual forces to the operator is an embodied concept of a wearable robotic arm. In this study, we design a 7 DOF wearable robotic arm with high joint torques. An operator wearing this robotic arm can move around freely because this robotic arm was designed to have its fixed point at the shoulder part of the operator. The proposed robotic arm uses parallel mechanisms at the shoulder part and the wrist part on the model of the human muscular structure of an upper limb. To reduce the computational load in solving the forward kinematics and to prevent singularity motions of the parallel mechanism, yawing motion of the parallel mechanisms was separated using a slip ling mechanism. The total weight of the proposed robotic arm is about 4 kg. An experimental result of force tracking test for the pneumatic control system and an application example for VR robot are described to show the validity of the robot.

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Multi-Function RFID Reader be based on ARM920T Platform (ARM920T 기반의 다기능 RFID Reader Platform 기술 개발)

  • 이상신;김영길
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2004.05b
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    • pp.37-40
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    • 2004
  • This paper is about Multi-function RFID Reader Platform that receives RF TAC data and transfer data to HOST PC through Blue-Tooth USB, RS-232 and Ethernet. This Reader system is composed of RFID Module, ARM Processor, RS-232, US5 and Ethernet Interface, etc.. The information of Tag stretches the RFID module through the antenna and is received at the ARM processor. ARM processor accomplishes the facility to deliver these informations at the PC server using the Blue-tooth Interface for the wireless and the RS-232, USB and Ethernet MAC Interface for the wire.

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Analysis on the Change of Hand Grip Strength as per the Circumference of Upper Arm and Forearm and the Muscle Activity of Upper Arm and Forearm as per the Duration of Gripping

  • Jeong, Yoo Ahn;Min, Ji Hee;Yun, Young Dae;Choi, Jung Hyun;Yoo, Kyung Tae
    • Journal of International Academy of Physical Therapy Research
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    • v.4 no.1
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    • pp.532-538
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    • 2013
  • The purpose of this study is to analyze the grip strength by the girth of upper arm and forearm and their muscle activities by duration of grip strength. The subjects were consisted of 20 healthy adults(10 males & 10 females) who had no medical history of neurological and surgical problems with their arms. Girth of upper arm/ forearm and maximum grip strength for 4sec and 30sec were measured. Muscle activity was by wireless electrode EMG system. Co-relation of girth of upper arm/ forearm was significantly high. Upper arm's muscle activity performed for 4sec and 30sec was significantly high. In this study. It suggests that training of upper arm should be performed with the training of grip strength because both of upper arm and forearm affected grip strength.

A Study on the Triple Module Redundancy ARM processor for the Avionic Embedded System (항공용 임베디드 시스템을 위한 Triple Module Redundancy 구조의 임베디드 하드웨어 신뢰성 평가)

  • Lee, Dong-Woo;Kim, Byeong-Young;Ko, Wan-Jin;Na, Jong-Whoa
    • Journal of Advanced Navigation Technology
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    • v.14 no.1
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    • pp.87-92
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    • 2010
  • The design of avionic embedded systems requires high-dependability. In this paper, we studied the dependability of the triple modular redundancy (TMR) hardware for highly reliable aviation embedded system. In order to evaluate the dependability of the base ARM processor and the TMR ARM processor, we developed the simulation model of the reduced ARM and TMR ARM processors and performed the simulation fault injection for the analysis of the dependability of the two targets. In the fault injection experiments, we calculated the error recovery rate of the two the processor models. From the experimental results, we could confirm that the reliability of the TMR ARM processor was greater than the single ARM processor by ten times in some cases.

The Influence of Restricted Arm Swing on Symmetry, Movement of Trunk and Pelvis Rotation according to Using a Mobile Phone

  • Chu, Jae-Hyeung;Kim, Yun-Jin;Ko, Yu-Min;Park, Ji Won
    • The Journal of Korean Physical Therapy
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    • v.29 no.1
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    • pp.33-38
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    • 2017
  • Purpose: This study was conducted to investigate the effects of variations in arm swing during gait on movement of the trunk and pelvis. During the gait task, the angle of the trunk and pelvic rotation were analyzed according to arm swing conditions. Methods: Seventeen healthy males participated in this study. All subjects were analyzed for gait on a treadmill three times each under three different types of arm swing conditions - natural arm swing, restricted arm swing using a phone, restricted swing in both arms. 3-D motion analysis systems were used to collect and analyze the kinematic data of trunk and pelvic movements, and repeated one-way ANOVA was used to compare the trunk and pelvic kinematic data and symmetry index. The level of significance was ${\alpha}=0.05$. Results: The results showed kinematic differences in trunk and pelvic during gait based on the arm swing conditions. Specifically, there were significant differences in trunk rotation, left and right trunk rotation and symmetry index of trunk rotation during gait among the three arm swing conditions. ROM was used to calculate a symmetry index (SI) based on the average left and right trunk rotation in which a value closer to zero indicated better balance. The SI obtained for arm swing restricted with the phone was closer to -1 than the other conditions. Conclusion: Restricted arm swing due to use of a phone had the possibility to induce instability of postural control while walking, which could be seen to suggest a risk of falling during gait.