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적응 궤환 제거가 강조된 보청기 알고리즘과 하드웨어 모듈 개발
정선용,지윤상,김인영,박영철,김남균,이상민,Jung, Sun-Yong,Ji, Yun-Sang,Kim, In-Young,Park, Young-Cheol,Kim, Nam-Gyun,Lee, Sang-Min 대한의용생체공학회 2006 의공학회지 Vol.27 No.5
We have developed a multi band digital hearing aid algorithm emphasizing feedback cancellation and a hardware module to evaluate the performance of our algorithm. The hearing aids should be able to compensate for individual hearing loss characteristics of hearing impaired person. Thus hearing aids need the function of multi-bands amplification and the capabilities of feedback cancellation that can remove howling caused by acoustic feedback. In this paper, we proposed a digital hearing aid algorithm which has multi-bands compensation using modified discrete cosine transform (MDCT) and can efficiently remove acoustic feedbacks. Moreover, we have developed digital hearing aid hardware module, which can evaluate hearing aid algorithms in real time operation. The developed algorithm and hardware module were verified through computer simulation and clinical tests. Through operational experiments, good performances in real time operation environment and an efficient howling cancellation were also observed. The developed hardware module can operate in stable condition and it is expected to become a good hardware platform for developing hearing aid algorithms.
이광춘,정선국,정선용,조영태,박정훈,Li, Guang-Chun,Jung, Sun-Kook,Chung, Seon-Yong,Jo, Young-Tae,Park, Jeong-Hun 한국지하수토양환경학회 2011 지하수토양환경 Vol.16 No.3
The experimental studies for remediation of diesel contaminated soils were performed using subcritical water in laboratory scale. Contaminated soils from industrial area and artificially contaminated soils were utilized for soil remediation. Experimental system was composed for subcritical water to flow upward through the soil packed column for extracting contaminants. 10 g of contaminated soil was packed into the column and water flow rate was 2 mL/min. To evaluate the effects of temperature, pressure and treatment time on the removal efficiency, temperature was changed from 100$^{\circ}C$ to 350$^{\circ}C$, pressure from 50 bar to 220 bar and treatment time at the predetermined temperature from 0 min to 120 min. The purification efficiency increased as temperature increased. However, the effect of pressure and treatment time was low. Temperature 250$^{\circ}C$, pressure 50 bar and treatment time 30 min were selected for optimal operating condition for this study.
일개 보건소에서 시행한 불면증에 대한 한약치료의 효과분석
정인호 ( In-ho Jung ),권찬영 ( Chan-young Kwon ),김종우 ( Jong-woo Kim ),정선용 ( Sun Yong Chung ) 대한한방신경정신과학회 2017 동의신경정신과학회지 Vol.28 No.4
Objectives: We conducted a public health promotion program in Korean medicine for participants suffering from chronic insomnia in 2016∼2017. A significant improvement effect was obtained through the 8-week herbal medicine treatment program. The object of this study is to report the results of this public health promotion program. Methods: Seventy patients diagnosed with chronic insomnia participated in the program, 49 of whom completed the program. Participants were treated with the herbal medicine for insomnia treatment for 8 weeks. A sleep diary was used to assess the total sleep time, sleep latency, and number of times the participants woke. The treatment satisfaction was then evaluated. Results: Through the 8-week herbal medicine treatment program, the total sleep time was significantly increased by 109.59±70.77 minutes, the sleep latency was significantly decreased by 63.53±47.79 minutes, and the number of times the participants woke was significantly decreased by 1.54±1.19 times compared to the baseline (all, p=0.000). Among the 24 patients who were examined for the treatment satisfaction, the average score was 4.33 points of a total of 5 points. Six patients had adverse events. Except for one patient, the symptoms of other patients were mitigated by changing or discontinuing the herbal medicine. Conclusions: For patients with chronic insomnia, the 8-week herbal medicine treatment program was effective, with few side effects and high treatment satisfaction. This study has significance as this is the first report in Korea on the effect of a herbal medicine treatment program for chronic insomnia through Korean medicine public health promotion.
최유진 ( Yu-jin Choi ),권찬영 ( Chan-young Kwon ),장재순 ( Jae-soon Jang ),정하영 ( Ha-young Jung ),김윤나 ( Yun-na Kim ),정선용 ( Sun-young Chung ) 대한한방신경정신과학회 2016 동의신경정신과학회지 Vol.27 No.3
Objectives: This study was performed to review the research trends in the treatment of posttraumatic stress disorder in traditional Chinese medicine. Methods: We searched articles in the China National Knowledge Infrastructure (CNKI) using keywords, “Posttraumatic stress disorder”, and “PTSD” in Traditional Chinese Medicine, Traditional Chinese Medicinal Herbs and Combination of Traditional Chinese Medicine and the Western Medicine field. We selected 16 studies after excluding non-clinical or unrelated studies. Results: Four pre-post comparison studies and 12 controlled clinical trials were performed in patients with PTSD in China. Herbal medicine, acupuncture, and moxibustion therapy were used for the treatment of PTSD. Most of the studies showed positive results, and they reported that the treatment groups had fewer side effects than the control group. However, the quality of these clinical studies was low. Conclusions: According to this study, TCM for PTSD would be an effective and safe intervention. Therefore, based on this study, more clinical
한약(韓藥) Extract제제의 투여로 호전을 보인 광장공포증을 동반한 공황장애 환자 1례(例) -계지가룡골모려탕(桂枝加龍骨牡蠣湯)과 작약감초탕(芍藥甘草湯)-
서현욱 ( Hyun Uk Suh ),황은영 ( Eun Young Hwang ),정선용 ( Sun Young Jung ),김종우 ( Jong Woo Kim ) 대한한방신경정신과학회 2010 동의신경정신과학회지 Vol.21 No.4
Objectives: This case report presents a 33-year-old male patient who complained chest pain and anxiety, diagnosed with panic disorder with agoraphobia improved by Herbal Extracts, SRP(Stress Reduction Program) and Acupuncture treatment. Methods: In early treatment period, we evaluated his general psychological state through interview and self-questionnaires(STAI, SCL-90-R, STAXI, BDI) for treatment planing. And then we had prescribed herbal extracts for 20 weeks with applying SRP and acupuncture treatment. After 20 weeks we assessed his psychological symptoms with same evaluation tools. Results: After 20 weeks, We found that patient`s somatic and psychological symptoms(anxiety, depression, anger) were alleviated. Frequency and severity of panic attacks were reduced also. Conclusions: Herbal extracts, especially Gyejigayonggolmoryo-tang(桂枝加龍骨牡蠣湯) and Jakyakgamcho-tang(芍藥甘草湯), may be useful therapeutic tool for control of panic attack symptoms and anxiety.
한국형 마음챙김 명상기반 스트레스 완화 프로그램(K-MBSR)이 유방암 환자의 심리적 증상, 수면 및 삶의 질에 미치는 효과
박경(Kyung Park),전진수(Jin-Soo Jun),정선용(Sun Young Jung) 대한스트레스학회 2013 스트레스硏究 Vol.21 No.3
본 연구에서는 유방암 환자들에게 K-MBSR의 효과를 검증하였다. 연구기간은 2월말에서 8월 9일까지이며, 실험집단 2집단 15명(1차 9명, 2차 6명), 통제집단 1집단(6명)으로 구성되었다. K-MBSR을 마친 실험 집단 가운데 추후검증에 참여한 환자는 6명이다. 실험집단 2집단에게 일주일 4시간씩 6주간의 K-MBSR이 실시되었으며, 통제집단은 대기집단으로 무처치 집단으로 사전, 사후에 측정도구를 실시하였다. 프로그램 사전 사후에 실시한 측정도구는 RRS, PSQI, EROTC-BR23, SCL-90-R, FFMQ, K-CCQ, K-TPGI이며 혈압도 함께 측정하였고, 타액검사를 실시하였다. 우선 실험집단 및 통제집단의 연구 참여자들의 동질성 가정에 대한 검토를 한 결과, 실험집단 15명과 통제집단과는 사전점수 비교에서 유의하게 나타난 척도가 없어 동질성 가정이 확인되었다. 프로그램 6회기를 모두 마친 실험집단의 K-MBSR 효과검증 결과는 MBSR 프로그램에 의한 유방암 환자들의 반추양식과 수면 질 그리고 삶의 질에서의 신체증상 및 우울과 대인관계 민감성과 적대감이 감소되었다. 실험 집단 가운데 추후연구에 참여한 실험집단 6명과 통제집단 5명의 사전, 사후의 비교는 명수의 제한 때문에 일반화하기에는 한계가 있으나, 실험집단의 경우, 사전-사후간 우울은 유의하게 감소하였다. 이는 유방암 환자들이 흔히 보고하고 호소하는 우울의 문제가 마음챙김 훈련에 통해 장기적이고 지속적으로 효과가 있다는 고무적인 결과이다. 본 연구의 결과 여러 심리적 신체적 변인에 긍정적인 효과를 확인 할 수 있었다. 그러나 연구 대상자 수 및 기간의 제한 등으로 마음챙김의 장기적 효과에 대한 검증은 향후 재검토 해야 할 과제 중 하나이다. 본 연구 결과를 토대로 향후 연구방향에 대해 논의하였다. This study investigated the effects of K-MBSR in Korean breast cancer patients. research period was from the end of Feb. to 9th of Aug. in 2012. 20 breast cancer patients were participated in this program. 5 were assigned in non-treatment control group and 15 were assigned in experiment group. And 6 of experimental group who engaged in first experiment were participated in follow-up study. K-MBSR was implemented to experimental group for 4 hours for every week during 6 weeks. The control group did not have any treatment. The test instruments for pre-post experiment were RRS, PSQI, EROTC-BR23, SCL-90-R, FFMQ, K-CCQ, K-TPGI, Blood Pressure, and Salivary Test in this program. As the results of hypothesis pre-tests for homogeneity between experimental and control group, all the null hypothesis were accepted. However, after the 6 times K-MBSR treatments, several null hypothesis were denied, and research hypothesis were accepted such as Ruminative Response, Sleep Quality, physical symptoms of Quality of Life, Depression Hostility, Interpersonal Sensitivity, and Anxiety. This means that experimental group patients experienced some reduction for the tested issues. Especially depression in pre-post of experiment group showed significant reduction. Especially depression in pre-post of experiment group was a significant reductions. Although the number of cases was small, these results implies that the K-MBSR can contribute reductions for the rumination, physical symptoms, Sleep Quality, and Quality of Life of the breast cancer patients in Korea. For the future research, large sample experiment is needed to make more confident result for K-MBSR.
분노증세를 동반한 심인성 진전 환자에 대해 이완요법과 한방치료를 실시한 1례 보고
김상호 ( Sang Ho Kim ),박소정 ( So Jung Park ),변순임 ( Soon Im Byun ),김지영 ( Ji Young Kim ),김종우 ( Jong Woo Kim ),정선용 ( Sun Yong Chung ),황의완 ( Wei Wao Hwang ),김지혁 ( Ji Hyouck Kim ) 대한한방신경정신과학회 2006 동의신경정신과학회지 Vol.17 No.3
Psychogenic neurological conditions account for 1% to 9% of admissions at neurological unit. They are considered manifestations of underlying psychiatry disorders such as somatoform disorders and factitious disorders or malingering. Diagnosis for psychogenic tremor is difficult because mimic tremor is occurred at the secondary of the organic disorders or coexist in a patient with tremors of organic origin. A patient in this case report was diagnosed as psychogenic tremor, and she also complained the severe anger. A patient did not improved with the chemical medication for a long time. The patient received relaxation training, herbal medication and acupuncture for 20 days and showed short-term alleviation on tremor and decreased anger problem and other somatic problems.
한의학 정신요법을 이용한 소아 전환장애 환자 1례 -지언고론요법(至言高論療法), 지지적 정신치료와 행동치료-
서현욱 ( Hyun Uk Suh ),서진우 ( Jin Woo Suh ),황은영 ( Eun Young Hwang ),김종우 ( Jong Woo Kim ),정선용 ( Sun Young Jung ) 대한한방신경정신과학회 2009 동의신경정신과학회지 Vol.20 No.4
Objectives: This case report presents a 7-year-old female patient diagnosed with conversion disorder improved by application of oriental medical psychotherapy, the Giungoroen. Her chief complaint was dysesthesia of anal. Methods: Through interview and several psychological testing such as HTP test, DAF test, JTCI 7-11, we assessed her psychological state and seek for the psychological reason induced her physical symptom, dysesthesia of anal. After assessment we concluded her main psychological problem was loss of love relationship with her parents. So we decided to use supportive psychological therapy and behavioral therapy-like changing upbringing attitudes of her parents, for example- with Herbal medicine treatment. Results: After 2-month of therapeutic period, chief physical symptom of patient-dysesthesia of anal-was reduced to 20% compared with first visit day. Conclusions: The Giungoroen corresponds to supportive psychotherapy and behavioral therapy. And this oriental medical psychotherapy is fairly effective on the treatment of conversion disorder in childhood.
이상은(Sang Eun Lee,),이근열(Geun Yeol Lee),정선용(Young Sun Jung),이장훈(Jang Hoon Lee) 호서대학교 공업기술연구소 2009 공업기술연구 논문집 Vol.28 No.1
This study made check of the water pollution status and pollution source at some points around A-City local rivers such as 3rd point of main flow of Gokkyo River, 4th Point of a branch stream of Anyang River and 1st point of branch stream of Sapkyo Lake, analyzed the loading of pollution materials through calculation of loading of pollution and studied the loading of pollution in A-City. The water quality test for each rivers showed the average BOD5 for Eumbong River was the best as 2.55m g//,T-N 1.05mg//, T-P 0.43mg/1 , which means the second class quality and the water class of the rest rivers except the main branch of Gokgyo and Onyang River mostly belonged to 4th 〜 6th class. The test by flow speed-size method showed that the main branch of Gokgyo had increasingly high values influenced by branch streams but there was decrease of water flux in the downstream of Gokgyo River due to installation of water storage appratus and agricultural use.