적응 콤 필터링을 이용한 이동 통신 환경에서의 강인한 음성 인식

박정식,정규준,오영환,Park Jeong-Sik,Jung Gue-Jun,Oh Yung-Hwan 대한음성학회 2003 말소리 Vol.46 No.-

In this paper, we employ the adaptive comb filtering for effective noise reduction in mobile communication environment. Adaptive comb filtering is a well-known method for noise reduction, but requires correct pitch period and must be applied just in voiced speech frames. To satisfy these requirements we use two kinds of information extracted from speech packets, one of which is the pitch period information measured precisely by a speech coder and the other is the frame rate information related to a decision on speech or silence frame. Experiments on speech recognition system confirm the efficiency of this method. Feature parameters employing this method give superior performance in noise environment to those extracted directly from output speech.

추나요법 건강보험 급여화 이후 추나요법 이용 현황 분석 (2019-2021)

박정식,임형호,Park, Jung-Sik,Lim, Hyung-Ho 한방재활의학과학회 2022 한방재활의학과학회지 Vol.32 No.4

Objectives The purpose of this study was to analyze the Chuna manual therapy usage status after the application of Chuna manual therapy health insurance. Methods This study analyzed the health insurance data (2019-2021). From April 2019 to December 2021, monthly data were collected by simple Chuna, complex Chuna (own expense 50%), complex Chuna (own expense 80%), and special (dislocation) Chuna. Results The major results are as follows. First, in hospital-level medical institutions, simple Chuna and complex Chuna (own expense 50%) occupied a similar proportion. In clinic-level medical institutions, simple Chuna occupies the largest proportion. Second, the amount of use decreased in all medical institutions after September, which is thought to be the result of restrictions on Chuna manual therapy health insurance. Conclusions Therefore, it is necessary to conduct research by receiving more detailed data onr Chuna manual therapy health insurance. Through this, an improved policy of Chuna manual therapy health insurance should be discussed.

근골격계 통증환자의 통증유형과 체형진단을 통한 신체지표 관련성 연구

박정식,박창현,송윤경,Park, Jung-Sik,Park, Chang-Hyun,Song, Yun-Kyung 척추신경추나의학회 2015 척추신경추나의학회지 Vol.10 No.1

Objectives : The purpose of this study is body parameters characteristics through posture analysis system of musculoskeletal problem patient Methods : Posture analysis system were performed for 164 patients to measure body parameters such as Q-angle, body inclination, neck inclination, PCMT(posterior cervical muscle tension), Knee flexion and posture balance. Statistical analysis using statistical analysis techniques and Pearson correlation coefficients was performed to assess the body parameters obtained by posture analysis system. Results : More than half of people out of 164 reported low back pain, 34.8% of the total was found to have neck pain. There was not a significant difference between genders from the characteristics of gender based body parameters expect for the statistical difference in Q angle, PCMT. There was a significant correlation between low back pain and multiple response status. There was a significant correlations between knee pain and Q angle. Also There was a significant correlations between pelvic pain and posture balance of ankle. Conclusions : Posture analysis system can be used to perform the analysis in place of X-ray measuring body posture and clinical parameters. The results of this study are expected to be the basis for further research on the clinical application of posture analysis system.

수학 문장제 표상능력 향상을 위한 웹 기반 시스템의 설계

박정식,고대곤,Park, Jung-Sik,Kho, Dae-Ghon 한국정보교육학회 2001 정보교육학회논문지 Vol.5 No.2

Elementary school students feel more difficult the mathematical word problems than the numberical formula. I think that this reason isn't the ability of mathematical calculation but the problems representation. It is demanded exactly understanding about the requirements of problem for improving ability of the mathematical word problem representation. It is necessary that we take multimedia data and communication for this, because web advances multimedia materialization and promotes mutual communication, then it gives us with the most environment for word problem representation learning. According to, this thesis is designed web-based system to improve ability of the mathematical word problem representation, applied the sixth grade it experimentally.

음향파를 이용한 균열위치 진단 system 개발

박정식(Jung Sik Park),오양균(Yang Gyun Oh),김양모(Yang Mo Kim) 대한전자공학회 1996 대한전자공학회 학술대회 Vol.1996 No.11

A Textual Analysis of Narratorship in A Portrait of the Artist as a Young Man and The Sun Also Rises -Modernism and Two Extreme Stylistics-

박정식 ( Jung Sik Park ) 한국현대영어영문학회 2007 현대영어영문학 Vol.51 No.2

중국비즈니스 실무자 양성을 위한 전문대학 교육방향

박정식 ( Jung-sik Park ) 한국고등직업교육학회 2004 한국고등직업교육학회논문집 Vol.5 No.3

The major goal of China business department in college is to train businessmen who has ability for Chinese language and business. The major course is composed of Chinese, China Business, and ManagementㆍTrading. The purpose of this study is to investigate the weight of courses of China related departments and to survey the opinion of the experts in Chinese, China economy, and China business area to find the proper way of direction of college education, The result shows that the weight of Chinese, China Business, and ManagementㆍTrading are 52.2%, 26.5%, 21.3% respectively, Students have to get HSK 3~5 grade forth as a premise. According to this results, if there are 20 hours in a week every semester, it will be suitable to give 10~11 hours to Chinese, 5 ~6 hours to China Business, and 4~5 hours to ManagementㆍTrading.

침수흔적조사를 위한 UAV 사진측량 기반 DEM의 추출 및 활용

박정식 ( Jung-sik Park ),최용진 ( Yong-jin Choi ),이진덕 ( Jin-duk Lee ) 한국지리정보학회 2023 한국지리정보학회지 Vol.26 No.4

Orthophotos and DEMs were generated by UAV-based aerial photogrammetry and an attempt was made to apply them to detailed investigations for the production of flood traces. The cultivated area located in Goa-eup, Gumi, where the embankment collapsed and inundated inundation occurred due to the impact of 6th Typhoon Sanba in 2012, was selected as rhe target area. To obtain optimal accuracy of UAV photogrammetry performance, the UAV images were taken under the optimal placement of 19 GCPs and then point cloud, DEM, and orthoimages were generated through image processing using Pix4Dmapper software. After applying CloudCompare's CSF Filtering to separate the point cloud into ground elements and non-ground elements, a finally corrected DEM was created using only non-ground elements in GRASS GIS software. The flood level and flood depth data extracted from the final generated DEM were compared and presented with the flood level and flood depth data from existing data as of 2012 provided through the public data portal site of the Korea Land and Geospatial Informatix Corporation(LX).

도시지역 검진수진자 40 , 698 명에서 NCEP - ATPⅢ 기준에 의한 대사증후군의 유병율

박정식(Jeong Sik Park),박현덕(Hyun Duk Park),윤중원(Jung Won Yun),정찬희(Chan Hee Jung),이원영(Won Young Lee),김선우(Sun Woo Kim) 대한내과학회 2002 대한내과학회지 Vol.63 No.3

목적 : 대사증후군은 그 진단기준의 다양함으로 인해 이 질환 군의 통계학적인 정보나 그에 따른 치료의 접근에 혼돈을 유발하여 왔다. 1988년 WHO에서는 이 질환 군을 대사증후군으로 명명하고 기준치를 제시한 바 있고, 2001년 NCEP-ATPⅢ (The Third report of the National Cholesterol Education Program Expert panel on detection, evaluation and treatment of high blood cholesterol in adults (Adults Treatment PanelⅢ))에서는 대사증후군에 대한 그 구성 인자와 기준치를 WHO기준보다 간결하고 더욱 엄격히 제시하였다. 최근 미국인을 대상으로 한 NCEP-ATP III 기준에 따른 유병율에 대한 보고가 발표된 바 있으나, 아시아인에서의 연구는 거의 없는 실정이어서 한국인에서 이 기준에 의한 대사증후군의 유병율을 알아보고 연령 및 성별에 따른 대사증후군의 비교위험도를 알아보고자 하였다. 또한 2000년 아시아-태평앙 지역의 복부비만(또는 비만)의 기준에 의한 분석과 비교하고자 하였다. 방법 : 2001년 1월부터 12월까지 1년간 서울의 강북삼성병원 종합건진센터에 건강진단을 받은 20세 이상 성인 수진자 40,698명(남자 26,528명, 여자 14,170명)을 대상으로 하였다. 참여자의 평균 연령은 41.2±9.2세(남자 41.4±8.6세, 여자 41.1±10.5세)였다. 키, 체중, 허리둘레, 수죽기와 이완기 혈압, 혈청 포도당 농도, 혈청 총 콜레스테롤 농도, 혈청 중성지방 농도, 혈쳥 고밀도지단백콜레스테롤 농도를 측정하여 NCEP-ATPⅢ 기준과 아시아-태평앙지역의 허리둘레와 체질량지수의 기준에 의한 유병율을 비교하였다. 결과 : NCEP-ATPⅢ 기준에 의한 대사증후군의 연령 보정한 유병율은 6.8%(남자 5.2%, 여자 9.0%)였고, 아시아-태평양 지역의 허리둘레 기준에서 대사증후군의 연령 보정한 유병율은 10.9%(남자 9.8%, 여자 12.4%)였으며, 아시아-태평앙 지역의 체질량지수 기준에서 대사증후군의 연령 보정한 유병율은 13.1%(남자 13.2%, 여자 13.1%)였다. 연령대별 대사증후군의 유병율을 보면, NCEP-ATPⅢ 기준에서 20대, 30대, 40대, 50대, 60대, 70세 이상에서 각각 1.4%, 2.5%, 5.2%, 11.5%, 19.5%, 22.2%, 아시아-태평양 지역의 허리둘레 기준에서 각각 2.4%, 5.4%, 9.4%, 18.2%, 27.5%, 31.3%, 아시아-태평앙 지역의 체질량지수 기준에서 각각 3.2%, 8.4%, 13.0%, 21.0%, 29.0%, 30.6%로 연령증가에 따라 대사증후군의 유병율이 증가하는 양상을 관찰하였다. NCEP-ATPⅢ 기준에 의한 대사증후군에서 20대에 대한 70세 이상에서의 대사증후군의 체질량지수를 보정한 비교위험도는 13.8 (95% CI 8.2∼23.2)였고, 남자에 대한 여자의 대사증후군의 체질량지수 및 연령을 보정한 비교위험도는 1.4(95% CI 1.2∼1.5)였다. 결론 : 미국 NHANESⅢ (The Third National Health and Nutrition Examination Survey)에서 보고한 유병율과 비교할 때 본 연구의 유병율과는 차이가 있었다. 향후, 한국인에서 적용될 수 있는 대사증후군의 새로운 진단기준이 필요할 것으로 생각된다. Background : The definition of metabolic syndrome was different in each studies and thus the results of each studies were variable. In 2001 years, the third report of the national cholesterol education program expert panel on detection, evaluation and treatment of high blood cholesterol in adults (NCEP-ATP III) emphasized the importance of treating patients with the metabolic syndrome to prevent cardiovascular disease. In year 2000, the criteria to define obesity in Asia-Pacific region was proposed. However, limited information is available about the prevalence of the metabolic syndrome according to NCEP-ATP III in Korea. We compared the prevalence of the metabolic syndrome in the urban Korean population by criteria of ATP III report and Asia-Pacific region and estimated the effect of age and sex on the development of metabolic syndrome. Methods : Total 40,698 participants (26,528 men, 14,170 women) underwent medical check-up from Jan. to Dec. 2001, aged 20-82 years (mean±SD: 41.2±9.2), were included in this study. Age, sex, height, body weight, waist circumference, blood pressure, blood cholesterol, triglyceride, HDL cholesterol and fasting glucose levels were measured. Results : By the definition of ATPⅢ, the age-adjusted prevalence of metabolic syndrome for Koreans was 6.8% in total, 5.2% in men, 9.0% in women. In Asia-Pacific definition with waist circumference, 10.9% in total, 9.8% in men, 12.4%. In Asia-Pacific definition with body mass index (BMI) instead of waist circumference, 13.1% in total, 13.2% in men, 13.1% in women. By the definition of ATP III, the prevalence among participants aged 20 through 29 years, 30 through 39 years, 40 through 49 years, 50 through 59 years, 60 through 69 years, and over 70 years were 1.4%, 2.5%, 5.2%, 11.5%, 19.5% and 22.2%, respectively. By the Asia-Pacific definition with waist circumference, 2.4%, 5.4%, 9.4%, 18.2%, 27.5% and 31.3%, respectively. By the Asia-Pacific definition with BMI instead of waist circumference, 3.2%, 8.4%, 13.0%, 21.0%, 29.0% and 30.6%, respectively. With BMI-adjusted logistic regression analysis, the odds ratio of participants with the metabolic syndrome aged over 70 years against aged 20 through 29 years was 13.8(95% CI 8.2∼23.2). With age and BMI-adjusted logistic regression analysis, the odds ratio of women with the metabolic syndrome for men was 1.4(95% CI 1.2∼1.5). Conclusion : The prevalence of the metabolic syndrome on NHANES III (The Third National Health and Nutrition Examination Survey) report in USA displayed much difference with our report. Therefore, adequate criteria of the metabolic syndrome for Koreans should be needed.(Korean J Med 63:290-298, 2002)

정신지체학생의 여가교육에 대한 교사의 인식

박정식 ( Jung Sik Park ) 한국정신지체아교육학회 2007 지적장애연구 Vol.9 No.4