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익상견갑에 대한 전거근 운동 : 증례 보고 1 Case Study
장준혁,구봉오,김선엽 대한정형물리치료학회 2003 대한정형도수물리치료학회지 Vol.9 No.2
Objective: The purpose of this study is to describe the effect of the serratus anterior muscle exercise in a patient with winging of the scapular. Background and Purpose: The patient was a 33-year-old man with an 3 years history of the left deltoid region. He had not responded to previous treatments of rest, TENS and medicine. Materials and Methods: After Surgical operation of the shoulder, the patient was treated for 6 months in 144 visits. treatment consisted of push-up with plus in the standing position with his hands against the wall and unique push-up with quadruped position at mat. Also, Sling exercise therapy was utilized to control scapular stabilization and reduce stress on the scapulohumeral joint. Result: Following 104 physical therapy visits, the patient was able to full range of motion of the shoulder without shrug motion Conclusion and Discussion : Scapular winging and serratus anterior muscle function are important consider in the rehabilitation of the shoulder dysfunction. Therefore, specific exercise program for people with the winging scapular should be considered.
Hygrolansamycins A-D, O-Heterocyclic Macrolides from Streptomyces sp. KCB17JA11
( Jun-pil Jang ),( Byeongsan Lee ),( Kyung Taek Heo ),( Tae Hoon Oh ),( Hyeok-won Lee ),( Sung-kyun Ko ),( Bang Yeon Hwang ),( Jae-hyuk Jang ),( Young-soo Hong ) 한국미생물생명공학회 2022 Journal of microbiology and biotechnology Vol.32 No.10
Six ansamycin derivatives were isolated from the culture broth of Streptomyces sp. KCB17JA11, including four new hygrolansamycins A-D (1-4) and known congeners divergolide O (5) and hygrocin C (6). Compounds 1-5 featured an unusual six-membered O-heterocyclic moiety. The isolation workflow was guided by a Molecular Networking-based dereplication strategy. The structures of 1-4 were elucidated using NMR and HRESIMS experiments, and the absolute configuration was established by the Mosher’s method. Compound 2 exhibited mild cytotoxicity against five cancer cell lines with IC<sub>50</sub> values ranging from 24.60 ± 3.37 μM to 49.93 ± 4.52 μM.
Design of Flexible Wearable Energy Harvesting System Using PVDF Vibration Sensor
( Jun-hyeok Jang ),( Jooyong Kim ) 한국감성과학회 2023 한국감성과학회 국제학술대회(ICES) Vol.2023 No.-
Energy harvesting is a subject of extensive research across various fields, driven by environmental and energy-efficient considerations. In particular, wearable energy harvesting has gained increasing significance due to the lightweight and flexible nature of wearable devices. In this study, we propose a novel wearable energy harvesting system that harnesses vibrations and Polyvinylidene fluoride (PVDF). The designed harvesting system consists of a PVDF vibration sensor, a silver-coated conductive thread for power transmission, a rectification chip with four embedded diodes for AC to DC conversion, and a wristband. The process involves periodically vibrating the PVDF using an Arduino servo motor to identify the reference resistance at the maximum power output. Finally, we calculate the overall energy efficiency by comparing the electrical energy harvested relative to the kinetic energy of the servo motor's motion. The result demonstrates a high energy harvesting efficiency of 4.75%. These findings hold promise for more efficient power utilization in various wearable devices and contribute to reducing environmental pollution, showcasing the positive aspects of this research.
옥준혁 ( Jun-hyeok Ok ),장홍준 ( Hong-jun Jang ),김병욱 ( Byoungwook Kim ) 한국정보처리학회 2023 한국정보처리학회 학술대회논문집 Vol.30 No.2
영어 공인 시험에서 영어 어휘는 가장 중요한 요소 중 하나이다. 그러나 기존 영어 어휘 학습 시스템은 단순히 어휘 교재의 콘텐츠를 디지털화한 것에 그치고 있다. 영어 어휘 학습에서 동의어에 대한 학습은 언어 능력을 향상시키고 다양한 상황에서 효과적으로 의사소통할 수 있는 능력 향상에 도움이 된다. 본 연구에서는 학습자들이 영어 어휘 학습을 효과적으로 할 수 있도록 동의어 및 반의 어를 활용할 수 있는 학습 시스템을 제안한다. 본 시스템은 동의어와 반의어에 대한 정보가 필요한 영어 어휘를 입력으로 받아 생성형 AI에서 동의어 및 반의어에 대한 정보를 생성한 후에 반환하는 기능을 수행한다. 본 시스템은 학습자들이 어휘 평가에서 오답으로 답한 어휘에 대해 동의어 및 반의어에 대한 추가적인 어휘와 예문을 제공하여 영어 어휘 학습의 효율성을 높일 수 있을 것이다.