http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
허승덕,정동근,김리석,김광년,강명구,김재룡,김기련 한국음성과학회 2004 음성과학 Vol.11 No.3
This paper introduces a development of an electrical stimulator for auditory stimulation. The electrical stimulator is useful in neurotological diagnosis, audiological evaluation, candidate selection for cochlear implantation, optimal device selection and decision making of MAP strategy for severe-to-profound hearing impaired persons. The development was based on sound parameters of auditory brainstem responses and auditory electrophysiological characteristic such as effective firing of auditory nerve and recording evoked potentials during refractory period of neuron. Besides pulse parameter could adjustable by programming for more varied electrical stimulation evoked response audiometry. Using the electrical stimulator, electrical square pulse was applied to promontory, and electrically evoked auditory brainstem response and electrically middle latency response were successfully recorded in cats.
A Vascular Characteristic Index of Blood Pressure Variation using the Pulse Wave Signal
Kim, Gi-Ryon,Jung, Dong-Keun,Ye, Soo-Young,Jeon, Gye-Rok The Korean Institute of Electrical and Electronic 2008 Transactions on Electrical and Electronic Material Vol.9 No.5
Pulse waves continuously change with respect to the characteristics and status of the cardiovascular system and in relation to the blood pressure (BP) and the pulse wave velocity (PWV). Monitoring the vascular condition by analyzing the variations in pulse waveforms has been used to diagnose vascular disorders and in drug treatment of arteriosclerosis and peripheral circulatory obstruction. In this paper, we investigated the vascular characteristic index with regard to the BP and classified by pulse wave signals. The pressure pulse wave and photoplethysmography (PPG) were measured simultaneously while subjects exercised, producing changes in the BP, to analyze the variation in the vascular characteristic index. We investigated the correlation between the BP and vascular characteristic index with regard to the classification methods of the pulse wave. The reflection index (RI) and vascular stiffness index were correlated with the diastolic BP, but no correlation was found between these parameters and the systolic BP. These results suggest the possibility of estimating BP through simple measurements of pulse waves.
바이오센서를 위한 PC 기반의 휴대용 고속 임피던스 분석기 개발
김기련 ( Gi Ryon Kim ),김광년 ( Gwang Nyeon Kim ),허승덕 ( Seung Deok Heo ),이승훈 ( Seung Hoon Lee ),최병철 ( Byeong Cheol Choi ),김철한 ( Cheol Han Kim ),전계록 ( Gye Rok Jeon ),정동근 ( Dong Keun Jung ) 한국센서학회 2005 센서학회지 Vol.14 No.1
N/A For more convenient electrode-electrolyte interface impedance analysis in biosensor, a stand-alone impedance measurement system is required. In our study, we developed a PC-based portable system to analyze impedance of the electrochemical cell using microprocessor. The devised system consists of signal generator, programmable amplifiers, A/ D converter, low pass filter, potentiostat, I/V converter, microprocessor, and PC interface. As a microprocessor, PIC16F877 which has the processing speed of 5 MIPS was used. For data acquisition, the sampling rate at 40 k samples/sec, resolution of 12 bit is used. RS-232 with 115.2 kbps speed is used for the PC communication. The square wave was used as stimuli signal for impedance analysis and voltage-controlled current measurement method of three-electrode-method were adopted. Acquired voltage and current data are calculated to multifrequency impedance signal after Fourier transform. To evaluate the implemented system, we set up the dummy cell as equivalent circuit of which was composed of resistor, parallel circuit of capacitor and resistor connected in parallel and measured the impedance of the dummy cell: the result showed that there exist accuracy within 5 % errors and reproduction within 1 % errors compared to output of Hioki LCR tester and HP impedance analyzer as a standard product. These results imply that it is possible to analyze electrode-electrolyte interface impedance quantitatively in biosensor and to implement the more portable high speed impedance analysis system compared to existing systems.
Color Correction in Portable-type Urine Analyzer
Kim, Jae-Hyung,Park, Chang-Hee,Lee, Seung-Jin,Jeon, Gye-Rok,Kim, Gi-Ryon The Korean Institute of Electrical and Electronic 2002 Transactions on Electrical and Electronic Material Vol.3 No.4
Color correction methods of chromaticity coordinates using Color Matching Function (CMF) were studied to develop a device-independent portable-type urine analyzer. The reflection spectra were measured for the degrees of 10 test items of the urine reagent strip (urine strip) to develop a portable-type urine analyzer. A computer simulation was performed to quantitatively distinguish the color reactions of the urine system, by using the spectral power distribution of Light Emitting Diode(LED), the reflection of a urine strip, and spectral sensitivity of a photodiode. To develop a device-independent system, chromaticity coordinates were modified to reduce the color deviations in the urine strip, by using the temperature compensation of LED and the color transformation by CMF. The experimental values obtained by developed urine system exhibited the accuracy above 95% for all color samples.
김광년,김기련,엄상희,kim, Gwang-yeon,kim, Gi-Ryon,Eum, Sang-Hee 한국정보통신학회 2018 한국정보통신학회논문지 Vol.22 No.12
응급 상황에서 응급 구조사는 외상 평가와 치료가 주요 업무이다. 하지만 응급 처치를 할 수 있는 범위가 협소하며 병원의 응급실로 이송하는 일을 주로 수행하고 있다. 응급 상황에 맞는 전문의를 연결하여 원격 의료 지도를 통한 응급 처치가 이루어진다면 정확한 진단과 적절한 치료에 도움을 줄 수 있다. 본 논문에서는 응급 의료 서비스를 위한 원격 의료 지도를 지원하기 위한 앱을 개발하였다. 개발된 스마트 앱은 응급 구조사가 원격지에 있는 의사를 호출하여 응급 환자의 상태를 생체 신호와 영상으로 실시간 전송할 수 있다. 이를 통하여 환자의 상태를 정확하게 진단하는데 도움을 줄 수 있다. 또한 응급 치료를 지도할 수 있으며 응급실에서의 대응이 신속하게 이루어질 수 있도록 할 수 있다. In emergency situations, first aid workers are the main task of trauma evaluation and care. However, the scope of first-aid treatment is small and they are mainly carried out to the emergency room of the hospital. If a specialist who is in charge of an emergency situation is connected and emergency medical treatment through remote medical direction is performed, accurate diagnosis and appropriate care can be helped. This paper has developed an smart application(app) to support remote medical direction for emergency medical services. The developed smart app allows emergency rescuers to call a doctor at a remote location and transmit real-time status of emergency patients to vital sign and video. This will help to diagnose the patient's condition accurately. In addition, emergency care can be instructed and response in the emergency room can be made quickly.
김광년,정동근,김기련,최병철,이정태,전계록,Kim Gwang-Nyeon,Jung Dong-Keun,Kim Gi-Ryon,Choi Byeong-Cheol,Lee Jung-Tae,Jeon Gye-Rok 한국시뮬레이션학회 2004 한국시뮬레이션학회 논문지 Vol.13 No.4
The modelling and simulation of the activation process for the heart system is meaningful to understand special excitatory and conductive system in the heart and to study cardiac functions because the heart activation conducts through this system. This thesis proposes two dimensional cellular automaton(CA) model for the activation process of the myocardium and conducted simulation by means of discrete time and discrete event algorithm. In the model, cells are classified into anatomically similar characteristic parts of the heart and each of cells has a set of cells with preassigned properties. Each cell in this model has state variables to represent the state of the cell and has some state transition rules to change values of state variables executed by state transition function. The state transition rule is simple as follows. First, the myocardium cell at rest stay in passive state. Second, if any one of neighborhood cell in the myocardium cell is active state then the state is change from passive to active state. Third, if cell's state is an active then automatically go to the refractory state after activation phase. Four, if cell's state is refractory then automatically go to the passive state after refractory phase. These state transition is processed repeatedly in all cells through the termination of simulation.
엄상희(Sang-hee Eum),김기련(Gi-Ryon Kim),김광년(Gwang-nyeon Kim),남재현(Jae-hyun Nam) 한국정보통신학회 2021 한국정보통신학회 종합학술대회 논문집 Vol.25 No.2
성대 질환과 관련한 측정 기술은 기술 축적이 늦은 상태이며, 전기성문전도(electroglotograph : EGG) 측정 장비는 외산에 의존적이다. 본 논문에서는 발성에 있어서 중요한 성대의 진동 상태, 즉 성대의 접촉양상을 간편하게 측정하여 모니터링할 수 있는 착용형 무선 전기성문전도 측정 단말기를 설계하고자 하였다. Measurement technology related to vocal cord disease is in a late state of technology accumulation, and electroglotograph(EGG) measuring equipment is dependent on foreign production. This paper seeks to design a wearable wireless electrical gate conductivity measurement terminal capable of easily measuring and monitoring the vibration state of the vocal cords, that is, the contact pattern of the vocal cords, which is important in vocalization.
간세포암의 부분 간절제술 후 한방치료로 복수를 동반한 간경변 증상이 호전된 환자 증례보고
김효린,정혜련,장철용,우찬,하예진,문구,백동기,Kim, Hyo-rin,Jeong, Hye-ryon,Jang, Chul-yong,Woo, Chan,Ha, Ye-jin,Moon, Goo,Baek, Dong-gi 대한한방내과학회 2015 大韓韓方內科學會誌 Vol.36 No.3
Objectives The purpose of this study is to report the possibility of treatment of liver cirrhosis with traditional Korean medical treatment. Methods A 57-year-old man diagnosed with hepatocellular carcinoma and liver cirrhosis was admitted to Wonkwang University Oriental Medical Hospital in August 2014. He underwent liver lobectomy and later experienced abdominal pain, anorexia, and insomnia. To control cirrhotic ascites and prevent relapses, he opted to receive HangAmDan-B (HAD-B) and cultivated wild ginseng herbal acupuncture therapy. Results After treatment, the volume of ascites decreased and the patient&’s symptoms such as abdominal pain and anorexia improved. Conclusions This report suggests that HAD-B and cultivated wild ginseng herbal acupuncture therapy may play a therapeutic role in liver cirrhosis occurring after liver lobectomy.