구어산출 메커니즘 협응을 이용한 말더듬 치료 전·후 전두엽 피질 영역의 활성화 양상 비교

안종복(Jong Bok Ahn) 한국언어치료학회 2017 言語治療硏究 Vol.26 No.2

Purpose: Current studies have looked at brain activation patterns of subjects with stuttering using functional infrared imaging (fNIR) as a new brain imaging instrument. The aim of this study was to recognize the fluency improvement of pre- and post-treatment using speech production mechanism coordination and how to alter the activation pattern of the frontal lobe cortex using fNIR (functional near-infrared spectroscopy). Methods: This study used a pre- and post-treatment on one male high school senior and one male high school junior. In other words, comparing fluency improvement aspects by using the pre- and post-treatment in spoken language, and simultaneously comparing the frontal lobe cortex activation using fNIR. To recognize fluency improvement through stuttering frequency, speech rates, changing of stuttering, and oxy and deoxy hemoglobin measurements in the frontal lobe cortex were taken. Results: First, in terms of fluency improvement, after using the speech production mechanism coordination in this treatment, both subjects decreased stuttering frequency, increased speech rates, and the main form of stuttering appeared as a whole repetition of words. Secondly, in terms of aspects of frontal lobe cortex activation, after using the speech production mechanism coordination treatment, subjects increased oxy and deoxy hemoglobin measurements. Conclusions: Using the speech production mechanism coordination treatment is not only effective in improving fluency, but also changing the activation pattern of the frontal lobe. These changes were verified objectively through fNIR.

통합교육 환경의 말더듬 학생에 대한 초등학교 교사의 인식 연구

안종복 ( Jong Bok Ahn ) 한국특수아동학회 2013 특수아동교육연구 Vol.15 No.1

아버지 양육참여에 대한 언어발달지연 자녀의 부·모간 인식 차이 연구

안종복(Jong Bok Ahn) 한국언어치료학회 2015 言語治療硏究 Vol.24 No.1

Purpose: This study aimed to investigate differences between fathers and mothers of children with language development delay about the fathers' parenting participation. Methods: Questionnaires were distributed and collected to discover differences in the said difference between fathers and mothers of children whose chronological age was 24-48 months, but language age was 12 months or less. Results: First, it was found that there was a significant cognition difference between the two groups concerning the fathers' participation related to communication with their children. Second, generally there was no significant cognition difference between the two groups concerning the fathers' participation related to play activities. Third, generally there was no significant cognition difference between the two groups concerning the fathers' participation related to understanding their children's language problems. Fourth, there was a significant cognition difference between the two groups concerning the fathers' participation related to daily life guidance. Lastly, generally there was no significant cognition difference between the two groups concerning the fathers' participation related to parenting attitude. Conclusions: It may be concluded that there was a significant cognition difference in some spheres between the two groups concerning the fathers' participation related to parenting children that have been delayed in language development and that fathers regarded themselves as more lenient concerning parenting their children.

우반구 손상인의 우리말 속담 표현 특성

안종복(Jong Bok Ahn) 한국언어치료학회 2011 言語治療硏究 Vol.20 No.1

This research investigates the ability of individuals with right hemisphere damage to express Korean proverbs, which are widely used as semantic and pragmatic expressions of language. Investigations were made into if subjects could express Korean proverbs appropriately based on the syntax and meaning of the proverbs and not on the dichotomous division of right versus wrong. After showing 20 proverbs and related pictures to 20 people with right hemisphere damage, whose average age was 54.8 years and who were treated as inpatients or outpatients in hospitals in Busan City and South Gyeongsang Province, and to 20 healthy people whose average age was 51.1 years and giving both of them relevant explanations, they were asked to recall corresponding proverbs. The results suggested that there was a significant difference in the scores of individuals with right hemisphere damage and healthy people to express Korean proverbs; that there was a significant difference in the scores of the two groups to express the syntax of Korean proverbs; that the abnormal people could express two or three syntactic phrases of proverbs that they already understood; that there was a significant difference in the scores of the two groups to express the meanings of Korean proverbs; and that the individuals with right hemisphere damage could express 60% or 70% of the meanings of the proverbs they already understood. It can be concluded that people with right hemisphere damage have a poorer ability to express Korean proverbs than healthy people but still they can express, to some extent, the syntax and meanings of the proverbs they understand.

압전소자를 이용한 유량센서 신호처리기술에 관한 연구

안종복(Jong-Bok Ahn) 산업기술교육훈련학회 2011 산업기술연구논문지 (JITR) Vol.16 No.3

The flow meter detects the vortex made by the bluff body which is inside of the pipe that has flowing fluids and calculate the velocity of the fluid. The sensor was manufactured using sensor body and piezo ceramics as the result of the creative design in engineering. The preexistence was analyzed and considered manufacture process and experiment. The sensor body was made after modifying sensor housing and transmitter. Using an elastic tape, copper foil and electric wire, first experiment was conducted. After holding with a vise, impulse was given to the transmitter and signal was captured. Scale is the 100㎳/dev for horizontal direction, 100㎷/dev for vertical direction. And the signal of the preexistence and proto-type was similar with its amplitude and period. Also, through frequency analysis, piezo ceramics’ thickness was selected and it can reduce the cost and error from development step. The experiments include impulse and periodic impulse test.

인공 신경망에 의한 GIS 변전소의 고장점 표정

안종복(Jong-Bok Ahn),박철원(Chul-Won Park) 한국조명·전기설비학회 2018 조명·전기설비학회논문지 Vol.32 No.6

This paper deals with fault location of GIS substation using artificial neural network. First, the configuration analysis of the target GIS substation and the operation status of the circuit breaker and the IED are examined. Using Weka software, we construct and learn an artificial neural network to determine the fault location of GIS substation, and check the result of fault location. The results of this study can be used for fault restoration and substation reconstruction in future.

컴솔 멀티피직스를 이용한 양극형 1회선 HVDC의 전계 해석

안종복(Jong-Bok Ahn),박철원(Chul-Won Park) 한국조명·전기설비학회 2018 조명·전기설비학회논문지 Vol.32 No.9

Recently, there has been an increasing interest in HVDC(High Voltage Direct Current) transmission as a core technology required for a Super grid. Compared with HVAC(High Voltage Alternating Current) transmission, HVDC transmission has no loss due to skin effect and reactance components, so long-distance power transmission is possible, and asynchronous power system can be interconnected. Also, in case of a DC electric field, there is no induction phenomenon. However, the human body may cause irritation such as electrostatic discharge and discomfort, therefore electric field analysis through simulation is absolutely necessary. In this paper, electric field simulation was performed using COMSOL Multiphysics, a multi-physics analysis program, for a Bipolar single line DC ±400kV, DC ±500kV, DC ±800kV model. In order to verify the validity of the simulation, comparative analysis with the related literature was conducted.

신경회로망을 이용한 154kV 변전소의 고장 위치 판별 기법

안종복(Jong-Bok Ahn),강태원(Tae-Won Kang),박철원(Chul-Won Park) 대한전기학회 2018 전기학회논문지 Vol.67 No.9

Recently, researches on the intelligence of electric power facilities have been trying to apply artificial intelligence techniques as computer platforms have improved. In particular, faults occurring in substation should be able to quickly identify possible faults and minimize power fault recovery time. This paper presents fault location technique for 154kV substation using neural network. We constructed a training matrix based on the operating conditions of the circuit breaker and IED to identify the fault location of each component of the target 154kV substation, such as line, bus, and transformer. After performing the training to identify the fault location by the neural network using Weka software, the performance of fault location discrimination of the designed neural network was confirmed.

우리말 속담에 대한 우반구 손상 환자의 이해력 연구

안종복(Jong-bok Ahn) 한국음성학회 2008 음성과학 Vol.15 No.3

This study was intended to analyze how well people with right hemisphere damage can understand Korean proverbs. This study used a between-subject design and within-subjects design where all subjects participate in the three experiments for 10 hospitalized patients of whose average age is 66.1 years old and 10 normal adults in the same age range. Experiment 1 was to make up Korean proverb related stories and suggest it in written, Experiment II was to suggest a picture presenting a Korean proverb and the proverb itself directly, and Experiment III was to make up a story related to a Korean proverb and tell it auditory. Five Korea proverbs were used for each experiment; 15 in total. The results were as follows: First, there was a significant difference in understanding of Korean proverbs between normal adults and people with right hemisphere damage. Second, there was no significant difference of understanding between them by stimulating methods to suggest Korean proverbs. Third, people with right hemisphere damage had a tendency to interpret Korean proverbs literally as a total wrong reaction was composed of 55.36%. Considering the above the results, it can be said that people with right hemisphere damage have less understanding of Korean proverbs than normal adults, which is not affected by a way of or a condition of suggesting Korean proverbs in people with RHD, and they are inclined to make literal interpretation of Korean proverbs as they are.

DC 송전선로와 지장물의 이격거리 계산 비교

안종복(Jong-Bok Ahn),박철원(Chul-Won Park) 한국조명·전기설비학회 2018 조명·전기설비학회논문지 Vol.32 No.3

Compared to AC transmission system, DC transmission system has low transmission loss. In addition, DC transmission can interconnect asynchronous power systems. Therefore, many overseas countries are operating DC transmission lines and ±500kV DC transmission lines will be constructed in South Korea. So, in this paper, we try to compare the clearances of obstacles when constructing a DC transmission line in a foreign country for the purpose of calculating the optimal clearance in South Korea. The comparison countries are the United States, Japan, Canada, China, South Africa, and India. As a result of the optimal clearance analysis, it is appropriate to apply the Japanese standard when considering various environmental aspects in South Korea.