• 대한후두음성언어의학회지
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• 제11권1호
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• pp.39-45
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• 2000

Background and Objectives : Accent method is one of holistic approaches for behavior readjustment of voice therapy The aim of this study is to evaluate the efficacy of the accent method of voice therapy for the patients who have no improvement after LMS. Materials and Methods : Of the patients who had been undergone LMS during the period from Jan. 1999 to Dec. 1999, medical records of 38 patients who had not been improved were studied retrospectively. 19 patients(treatment group) were applied accent method and the other 19 patients(control group) refused voice therapy. The voice of all the patients of both group were analysed with CSL and Aerophone II programs in pre- and post operative period. The voice of treatment group were analysed with Visi-Pitch II program before the application of accent method and after the completion of accent method. Then, the results were compared using paired t-test. Results : The results of voice analysis were not different statistically between pre- and postoperative examination in both group. After application of accent method in the treatment group, fundamental frequency(F$_{0}$) of male, relative average pertubation, and shimmer were revealed significant differences(p＜0.01), and decrease in grade(G) scale and roughness(R) scale were statistically Important in perceptual analysis using GRBAS criteria(p＜0.01). But $F_0$ of female, maximal phonation time and S to Z ratio were not revealed significant differences. Conclusions : Accent method of voice therapy may be as a supplement- ary therapy in the patients who were not improved after surgery.

• 인터넷정보학회논문지
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• 제14권4호
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• pp.85-90
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• 2013

현재 전기화재 예측시스템은 제어용 마이크로프로세서로서 PIC(Peripheral Interface Controller)를 사용하고 있다. PIC는 DSP(Digital Signal Processor)보다 연산속도가 느려 실시간 연산능력이 부족하다. 그래서 아크 발생 시 나타나는 기본 특성파형을 기준 reference로 하여 이 reference와의 비교를 통해 아크로 인한 전기화재를 예측하여 경보한다. 기존의 전기화재 예측시스템은 이러한 경보를 원격의 중앙 서버에서 감시하고 후속 조치를 취할 수 있으나, 그 예측 에러율이 높을 뿐만 아니라, mobile 환경에서 원격제어를 하지 못하는 실정이다. 본 논문에서 시간영역, 주파수영역의 아크검출과 적응알고리즘을 변환영역에서 수행하는 웨이블릿 기반의 적응알고리즘"을 적용하여 새로운 실시간 아크검출 알고리즘이 탑재된 전기화재 예측시스템을 DSP를 이용하여 개발하였다. 또한 아크의 전기적 신호 및 전력품질 대한 원격 모니터링이 실시간으로 가능할 뿐만 아니라, iphone 환경기반의 App 개발을 통해 원격에서 제어가 가능하도록 구축하고 그 유용성을 확인하였다.

• 한국융합학회논문지
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• 제9권10호
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• pp.433-439
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• 2018

본 연구는 20세 이상의 남녀를 대상으로 녹내장 환자의 5년간의 안과 외래이용을 분석하여 한국인에서 녹내장 발병에 대한 변화추이를 조사하고자 시행하였다. 연구 자료는 한국의료패널의 2008년부터 2012년도의 연간자료를 활용하여 의료이용에 대한 빈도와 교차분석을 실시하였다. 녹내장환자의 안과외래 이용은 2008년 0.43%, 2009년 0.47%, 2010년 0.49%, 2011년 0.61%, 2012년 0.75%로 매년 유의하게 증가하였다(p<0.001). 안과외래를 이용한 녹내장 환자는 20대에서 70대까지 고 연령층으로 갈수록 더 높은 이용률을 보였고(p<0.001), 각 연령대에서 매년 증가하는 경향을 보였다(p<0.001). 이와 같은 결과에서 한국인에서 녹내장으로 인한 최근 의료이용은 매년 증가추세를 보여 각 연령대에 맞는 조기발견과 관리가 중요한 과제임을 알 수 있다.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2008년도 추계종합학술대회 B
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• pp.281-284
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• 2008

본 논문에서는 멀티미디어 SoC 플랫폼의 ASIC 설계에 대해 기술한다. 구현된 플랫폼은 32비트 OpenRISC1200 마이크로프로세서, WISHBONE 온 칩 버스, VGA 제어기, 디버그 인터페이스, SRAM 인터페이스 및 UART로 구성된다. 32 비트 OpenRISC1200 프로세서는 명령어 버스와 데이터 버스가 분리된 하버드 구조와 5단 파이프라인 구조를 가지고 VGA 제어기는 메모리로부터 읽은 이미지 파일에 대한 데이터를 RGB 값으로 CRT 혹은 LCD에 출력한다. 디버그 인터페이스는 플랫폼에 대한 디버깅 기능을 지원하고 SRAM 인터페이스는 18비트 어드레스 버스와 32비트 데이터 버스를 지원한다. UART는 RS232 프로토콜을 지원하는 시리얼 통신 기능을 제공한다. 본 플랫폼은 Xilinx VIRTEX-4 XC4VLX80 FPGA에 설계 및 검증되었다. 테스트 코드는 크로스 컴파일러로 생성되었고 JTAG 유틸리티 소프트웨어와 gdb를 이용하여 패러럴 케이블을 통해 FPGA 보드로 다운로드 하였다. 이 플랫폼은 최종적으로 Chartered 0.18um 공정을 이용하여 단일 ASIC 칩으로 구현 되었으며 100MHz 클록에서 동작함을 확인하였다.

• 한국의상디자인학회지
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• 제17권2호
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• pp.207-222
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• 2015

The purpose of this study is to set up the theoretical foundation for neon colors by recognizing them as important elements of sensitive design and by comprehending their existence as a color fashion responsive to psychological and social background. As the subject of the present the researcher has selected important oversea collections of these five years during which neon colors have fully emerged as popular colors of fashion. The procedure of research was to examine the concept and traits of colors and investigate the utility of neon colors in various fields. The important facts which are acquired from the present study are as follows. First, the analysis of frequency has found out the following color arrangements: neon color only-8.6%(35), neon color+colorless-58.3%(236), neon color+ colored -14.8%(60),neon color+colorless+colored-18.3%(74), and others. The case of neon color used as monochromatic (color) was distinguished into two: single neon color all through and the same color used differently. Color arrangements were divided into analogous arrangement, separation arrangement, dominant arrangement, multi-color arrangement, and accent arrangement. Second, the internal significance of neon colors expressed in fashion can be interpreted into three: emphasis, optical Illusion, and amusing. This study has attempted to raised up the aesthetic value of various color expression and to expand fashion image by interpreting the trends of color fashion together with the traits and aesthetic meaning of color in fashion. The future study intends to expand the expression area of fashion design and to interpret molding beauty through the image of color arrangement and through fashion style utilizing neon colors.

• 대한세포병리학회지
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• 제5권2호
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• pp.90-98
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• 1994

There has been a marked increase in the utility of aspiration cytology for pathologic diagnosis. It may be applied to any kinds of organs and substitutes surgical biopsy. Be cause of the high risk of complication and difficulties In localization, aspiration cytology in the central nervous system (CNS) has been used with less frequency compared to other sites. However, with the advent of sophisticated imaging instruments, aspiration cytology of lesions in the CNS is being used increasingly. We present cytologic features of brain tumors as well as corresponding histologic findings. Eight types of tumors were aspirated intraoperatively and stained with the Papanicolaou method; 1 anaplastic astrocytoma, 1 glioblastoma multiforme, 1 ependymoma, 1 malignant ependymoma, 1 central neurocytoma, 1 primitive neuroectodermal tumor, 1 benign neurogenic tumor and 1 germinoma. Cytologic features of the CNS neoplasms were quite similar to those of histology except one spindle cell tumor. Reviewing various CNS neoplasms, it appears that cytology may be a useful diagnostic method.

• 융합신호처리학회논문지
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• 제10권3호
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• pp.170-175
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• 2009

본 논문은 PDA 디바이스에서 개인정보를 보호하기 위한 자동화자확인 시스템을 제안한다. 최근 M-커머스와 같은 모바일 환경을 위한 PDA의 용량이 확장되고 사용이 증가되고 있다. 그러나 너무 많은 계산량 때문에 PDA 디바이스에서 자동화자확인의 실질적인 응용은 여전히 많은 어려움이 존재한다. 본 논문에서는 이러한 문제점을 해결하기 위해서 음성발성 동안 스펙트럼 차감법과 음성 검출과 같은 전처리를 수행함으로써 계산량을 줄일 수 있는 방법을 적용하였다. 또한 빠른 처리 결과를 얻기 위한 은닉마코프모델의 최적 상태 정합과 시퀀스 확률비 테스트를 적용하였다. 전체적인 시스템은 PDA디바이스의 제한된 메모리와 낮은 CPU 속도에 적합하도록 간결하게 구현하였다.

• 복식
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• 제43권
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• pp.125-142
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• 1999

This research was aimed to present a model of clothing products evaluation nd to classify the effect of extrinsic cues on clothing products evaluation. In order to accomplish following subjects were established. First it is to find the effect of extrinsic cues -price brand store - on perceived quality perceived risk perceived value and purchase intention of clothing products. Second it is to formulate a model of clothing products evaluation and find the relation among the variables such as extrinsic cues perceived quality perceived risk perceived value and purchase intention. This research was mainly divided into theoretical and empirical part. In the theoretical part previous theories and studies on clothing products cues clothing products evaluation perceived quality perceived risk and perceived value were examined to establish a research model and to present a theoretical frame for clothing products evaluation. In the empirical research a questionnaire was developed and statistical data were collected from during July 1997. The subjects were 862 women in the age of 20-35 living in Seoul and kyungki region. SAS and LISREL were used to analyze the collected data. frequency percentage factor analysis ANOVA duncan test correlation analysis regression analysis and LISREL were applied. The results of this research are as follows: First perceived quality consists of performance quality external quality and utility quality in a form of multi dimensional structural. Perceived risk is structured by social/resultant risk financial/fashionable risk and performance/management risk. Second this research proved that extrinsic cues are influenced by each individual variable and extrinsic cues interact with each other through the variable. The perceived quality is influenced most by price Among the perceived risk social/resultant risk by brand financial/fashionable risk by price and performance/management risk by store. respectively. Perceived value is inflenced by price and brand. Third in evaluating process consumer use extrinsic cues to first formulate perceived quality and perceived risk of clothing products and then formulate perceived value ot decide on purchase intention.

• Smart Structures and Systems
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• 제4권6호
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• pp.727-740
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• 2008

A down hole vertical seismic array is a sequence of instruments installed at various depths in the earth to record the ground motion at multiple points during an earthquake. Numerous studies demonstrate the unique utility of vertical seismic arrays for studying in situ site response and soil behavior. Examples are given of analyses made at two sites to show the value of data from vertical seismic arrays. The sites examined are the Lotung, Taiwan SMART1 array and a new site installed at Jingliao, Taiwan. Details of the installation of the Jingliao array are given. ARX models are theoretically the correct process models for vertical wave propagation in the layered earth, and are used to linearly map deeper sensor input signals to shallower sensor output signals. An example of Event 16 at the Lotung array is given. This same data, when examined in detail with a Bayesian inference model, can also be explained by nonlinear filters yielding commonly accepted soil degradation curves. Results from applying an ARMAX model to data from the Jingliao vertical seismic array are presented. Estimates of inter-transducer soil increment resonant frequency, shear modulus, and damping ratio are presented. The shear modulus varied from 50 to 150 MPa, and damping ratio between 8% and 15%. A new hardware monitoring system - TerraScope - is an affordable 4-D down-hole seismic monitoring system based on independent, microprocessor-controlled sensor Pods. The Pods are nominally 50 mm in diameter, and about 120 mm long. An internal 16-bit micro-controller oversees all aspects of instrumentation, eight programmable gain amplifiers, and local signal storage.

• 전력전자학회논문지
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• 제14권1호
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• pp.72-81
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• 2009

본 논문에서는 대기압 플라즈마 발생용 정현파펄스형 교류 전원 장치에 대한 연구를 진행하였다. 정현파펄스형 전원장치는 기존의 LC공진을 이용한 교류 전원장치보다 높은 dv/dt를 갖게 되므로 안정적인 플라즈마 공급이 가능하며 펄스형에 비해 고조파 노이즈가 적고, 정전류 턴온-영전압 턴오프 형태로 동작하므로 매우 높은 효율을 갖는다. 또한 플라즈마 점화 기능을 강화하고 안정적인 전압제어를 위해 3상 부스트형 컨버터를 입력단에 사용하여 입력 역률이 매우 높은 시스템을 구성할 수 있다. 실험실 수준의 10kW부하시설을 사용하여 본 연구의 결과를 입증하였다.