A Comparative Performance Study of Speech Coders for Three-Way Conferencing in Digital Mobile Communication Networks

이미숙,이윤근,김기철,이황수,조위덕,Lee, Mi-Suk,Lee, Yun-Geun,Kim, Gi-Cheol,Lee, Hwang-Su,Jo, Wi-Deok The Acoustical Society of Korea 1995 韓國音響學會誌 Vol.14 No.e1

In this paper, we evaluated the performance of vocoders for three-way conferencing using signal summation technique in digital mobile communication network. The signal summation technique yields natural mode of three-way conferencing, in shich the mixed voice signal from two speakers are transmitted to a third person, though there has been no useful speech coding technique for the mixed voice signal yet. We established Qualcomm code term prediction (RPE-LTP) vocoders to provide three-way conferencing using signal summation techinique. In addition, as the conventional speech quality measures are not applicable to the vocoders for mixed voice signals, we proposed two kinds of subjective quality measures. These are the sentence discrimination (SD) test and the modified degraded mean opinion score (MDMOS) test. The experimental results show that the output speech quality of the VSELP vocoder is superior to other two. 본 논문에서는 이동통신망에서 신호 가산방식을 이용한 삼자회의에서의 음성 부호화기 성능을 평가하였다. 두 사람의 섞인 목소리가 다른 회의 참가자에게 전달되는 신호 가산방식은 가장 자연스러운 삼자회의 방식이지만, 아직까지 두 사람의 섞인 목소리를 부호화할 수 있는 유용한 방법은 없다. 본 논문에서는 삼자회의에 신호 가산방식을 적용하기 위해 QCELP, VSELP, RPE-LTP 보코도를 구현하여 평가를 수행하였다. 또한 두 화자의 목소리가 섞인 음성신호에 대한 부호화기의 성능평가를 위해 기존의 음질 평가법을 그대로 사용할 수 없으므로, 본 논문에서는 두 가지 주관적 평가법을 제안하였다. 제안된 방법은 문장 식별법(SD)과 수정된 DMOS(MDOMS) 방법이다. 실험결과에 의하면 VSELP 보코더의 출력음질이 다른 두 보코더에 비해 좋게 나타났다.

태음인 조열병증(燥熱病證)으로 진단한 원인불명의 팔다리 저림 및 위약감 환자 치험 1례

이미숙,배나영,Lee, Mi-Suk,Bae, Na-Young 사상체질의학회 2015 사상체질의학회지 Vol.27 No.3

Objectives The aim of this study was to report significant improvement of paresthesia and weakness in the limbs of unknown cause after treatment with Mangeummoonmu-tang and Cheongeummoonmu-tang in a Taeeumin patient. Methods The patient was diagnosed as Taeeumin Dry-Heat (Joyeol) pattern and treated with Mangeummoonmu-tang, Cheongeummoonmu-tang and acupuncture. The patient's subjective symptoms of paresthesia and weakness were observed using Global Assessment Scale (GAS) during the treatment period. Results and Conclusion The symptoms of paresthesia and weakness decreased from GAS 100 to GAS 0 for two weeks. Furthermore, the patient's symptoms of fatigue and xeroderma were reported to be improved after treatment. In conclusion, this study shows that Sasang constitutional medicine can be effective treatment for Taeeumin patient with paresthesia and weakness in the limbs of unknown cause.

업계 탐방 - "KFPA 화재안전 우수건물" (주)한화63시티 대한생명 부산사옥

이미숙,Lee, Mi-Suk 한국화재보험협회 2011 防災와 保險 Vol.143 No.-

KFPA는 화재안전점검을 실시한 특수건물 중에서 화재위험도가 매우 낮고 안전관리가 우수한 건물에 대하여 "KFPA 화재안전 우수건물 인정패"를 건물 입구에 부착하는 "KFPA 화재안전 우수건물 인정제도"를 2011년 6월부터 실시하고 있다. 이번 호에서는 (주)한화63시티의 체계적인 관리를 통해 화재안전 우수건물로 선정된 대한생명 부산사옥을 방문하여 안창발 소장을 만나보았다.

태음병 황달증으로 진단한 소음인 황달 환자 치험 1례

이미숙,배나영,Lee, Mi-Suk,Bae, Na-Young 사상체질의학회 2016 사상체질의학회지 Vol.28 No.3

Objectives This case study is about a Soeumin patient with jaundice identified as Greater-Yin accompanied Jaundice pattern. In this study, we report significant improvements of anorexia, dyspepsia, fatigue and weight loss after treatment with Hyangsayangyi-tang, Insambaekhaogwanjung-tang and acupuncture.Methods The patient was identified as Greater-Yin accompanied Jaundice pattern and treated with Hyangsayangyi-tang, Insambaekhaogwanjung-tang and acupuncture. The Global Assessment Scale (GAS) was used to assess the improvements of anorexia, dyspepsia, fatigue and pelvic pain after the treatment. And the liver function test was performed to measure the overall function of the liver.Result and Conclusion The symptoms of anorexia, dyspepsia, fatigue and pelvic pain were improved from GAS 100 to GAS 0-10 for four months. And The liver function test showed improved the response to treatment. The levels of AST (aspartate aminotransferase)/ALT (alanine aminotransferase) decreased from 43/42 to 29/14 IU/L. The level of total bilirubin was decreased from 2.7 to 1.9 mg/dL. Furthermore total weight gain was 8 kg from starting weight of 36.5 kg for four months. In conclusion, this study shows that Sasang constitutional medicine can be effective and safe treatment for the Soeumin patient with jaundice.

Ki-1 양성 역형성 대세포 림프종의 체액 세포학적 소견 - 1예 보고 -

이미숙,이미자,정유경,임성철,기근홍,전호종,Lee, Mi-Sook,Lee, Mi-Ja,Jeong, Yu-Kyung,Lim, Sung-Chul,Kee, Keun-Hong,Jeon, Ho-Jong 대한세포병리학회 1995 대한세포병리학회지 Vol.6 No.2

Ki-1 positive anaplastic large cell lymphoma is a newly described high-grade lymphoma and is defined by histopathological and immunologic criteria. We experienced a case of systemically involving Ki-1 positive anaplastic large cell lymphoma in a 44 year-old female which initially manifested as pleural effusion. Abdominopelvic CT scan showed the evidence of marked lymphadenopathy in retroperitoneal and both external and inguinal lymph nodes. On cytologic examination of pleural fluid, tumor cells revealed pleomorphic large isolated cells with prominent nucleoli and abundant cytoplasms. The nuclei were large with irregular profiles including some deep invaginations. Also, occasional multilobed/multinucleated and binucleated nuclei were seen. Immunohistochemical examination was performed to differentiate from the undifferentiated adenocarcinoma, Hodgkin's disease, non-Hodgkin's lymphoma and malignant histiocytosis. The neoplastic cells were positive for leukocyte common antigen, CD3, CD30(Ki-1) but negative for cytokeratin, epithelial membrane antigen, and CD15. A histologic diagnosis of Ki-1 positive anaplastic lymphoma was made by biopsies of the inguinal lymph node, polypoid lesions of the stomach and cecum.

탐방 - Hotel Interburgo

이미숙,Lee, Mi-Suk 한국화재보험협회 2002 防災와 保險 Vol.92 No.-

기립성 저혈압이 있는 진행된 파킨슨병 태음인 환자 치험 1례

이미숙,박유경,배나영,Lee, Mi-Suk,Park, Yu-Gyeong,Bae, Na-Young 사상체질의학회 2016 사상체질의학회지 Vol.28 No.2

Objectives This case study is about a Taeeumin patient with advanced Parkinson's disease identified as Dry-heat (Joyeol) pattern. In this study, we report significant improvement of non-motor and motor symptoms after treatment with Cheongsimyeonja-tang.Methods The patient was identified as Taeeumin Dry-heat (Joyeol) pattern and treated with Cheongsimyeonja-tang and acupuncture. The Unified Parkinson Disease Rating Scale (UPDRS) was used to assess the overall functions of the patient. And the global assessment scale (GAS) was used to assess the improvements of dizziness, bradykinesia and tremor after the treatment.Result and Conclusion The UPDRS total score decreased from 138 points to 86 points after 5 weeks treatment. And symptoms of dizziness caused by hypotension, bradykinesia, and tremor showed significant improvement in GAS after the treatment. Furthermore, sleep disturbance and constipation were reported to be improved after the treatment. In conclusion, this study shows that Sasang constitutional medicine can be effective treatment for Taeeumin patient with advanced Parkinson's disease having orthostatic hypotension.

KHI-6의 일반적 특징과 해독 효과 고찰

이미숙,Lee, Mi-Suk 한국방위산업진흥회 2001 國防과 技術 Vol.- No.264

우리 군도 2000년 6월 전략화 심의를 통과한 후, 2006년부터 도입될 신형 해독제 주사기인 KHI-6에 대한 개발을 업체가 추진하고 있다. 이 HI-6 과련 해독제는 기존 PAM 관련 KMARK-1 보다 Soman 신경 작용제에 해독 능력이 증강되고, LD50 수치가 높고(자체 독성이 낮음을 의미), 이원화 자동 주사기로써 간편성을 더한다고 한다. 이에 우리도 신형 해독제 주사기에 대한 기본 구조와 해독 효과, 장점과 단점, 도입에 관련된 사전 지식, 외국군의 운용 실태 등에 대해 알아보았다

PBL(문제 중심 학습)을 적용한 방재안전분야의 재해 심리 수업사례 연구

이미숙,김수진,Lee, Mi-Suk,Kim, Soo-Jin 한국방재안전학회 2018 한국방재안전학회 논문집 Vol.11 No.2

본 연구는 재해심리학 수업에서 문제중심학습을 적용한 수업을 설계하고, 실제 교육현장에 적용한 뒤 학생들이 느끼는 교육적 경험을 분석하였다. 연구대상은 재해심리 수업을 수강한 56명의 대학생이다. 재해심리 수업은 강의식 수업과 문제중심학습 방식을 혼합하여 실시하였고, 문제중심학습 수업은 3주간 진행되었다. 수업에 대한 결과물은 문제분석지, 조별활동일지, 성찰일기, 조별평가지이고 이러한 자료를 토대로 반복비교법, 삼각측정법을 통해 질적 자료를 분석하였다. 분석 결과 전문지식 습득, 다각적 분석을 통한 자신감, 실제적 문제해결력, 타인의 관점 수용을 통한 의사소통능력, 직업적 소명의식, 유사상황 대처에 대한 효능감, 관점의 변화라는 7가지 범주의 역량이 확인되었다. 본 연구는 문제중십학습 수업 모델 적용 사례를 소개하여 향후 후속 수업적용과 연구를 기대하게 한다. The purpose of this study is designed to apply the model of the problem-based learning in the class of Disaster Psychology and then analyze the experiences that its students felt. The participants in this research are 56 undergraduates. The class of Disaster Psychology was conducted with blended learning using lecture and PBL. The PBL problem should be solved just for 3 weeks. The data collected after the class is an analysis of the PBL problem, log on group activities, personal reflection diary, Group evaluation. Then, each data should be collected and analyzed quantitatively through the repetitive comparison, and the triangle-measurement. The findings suggest that there is a remarkable educational learning experience in seven categories: acquire expertise, confidence, practical problem-solving skill, communication ability, roles of calling, efficacy, change in perspective. This study introduces a case of PBL course development and expects subsequent applications and research.

논문편 : 부인의 취업유무와 직종에 따른 부부의 가사수행

이미숙,유안진 ( Mi Sook Lee,An Jin Yoo ) 대한가정학회 1997 Human Ecology Research(HER) Vol.35 No.1