• 전기학회논문지
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• 제66권4호
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• pp.709-714
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• 2017

The curved panel is widely used for display of TVs and smart phones. This paper proposes a new auto-focusing method for curved panel inspection system. Since the distance between the camera and the panel varies with the curve position, the camera should change its focus at every inspection time. In order to reduce the focusing time, we propose an effective focusing method that considers the mathematical model of panel curve. The Lagrange polynomial equation is applied to modeling the panel curve. The foci of initial three points are used to get the curve equation, and the other foci are calculated automatically from the curve equation. The experiment result shows that the proposed method can reduce the focusing time.

• 한국정밀공학회지
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• 제26권4호
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• pp.128-133
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• 2009

Focused-ion-beam (FIB) system is capable of both machining and measuring in nano-scale; hence nano-scale focusing quality is important. This paper investigates design parameters of two electrostatic lenses in order to achieve the best ion beam focusing performance. Commercial SIMION simulator is used to optimize the dimensions of the condenser and objective lenses and investigate the influence of assembly error on focusing quality The simulation results show that the beam focusing quality is not influenced by angle deviation within ${\pm}0.02\;deg$ and geometrical eccentricity within ${\pm}50$ micrometers.

• 비파괴검사학회지
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• 제31권6호
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• pp.635-641
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• 2011

In ultrasonic testing of dissimilar metal welds, application of phased array technique in terms of incident beam focusing is not easy because of complicated material structures formed during the multi-pass welding process. Time reversal(TR) techniques can overcome some limitations of phased array since they are self-focusing that does not depend on the geometrical and physical properties of testing components. In this paper, we test the possibility of TR focusing on a defect within anisotropic, heterogeneous austenitic welds. A commercial simulation software is employed for TR focusing and imaging of a side-drilled hole. The performance of time reversed adaptive focal law is compared with those of calculated focal laws for both anisotropic and isotropic welds.

• 한국정밀공학회지
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• 제21권3호
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• pp.74-82
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• 2004

This paper proposes a fast zooming and focusing technique for implementing a real-time surveillance camera system which can capture a face image in less than 1 second. It determines the positions of zooming and focusing lenses using two-step algorithm. In the first step, it moves the zooming and focusing lenses simultaneously to the positions calculated using the lens equations for achieving the predetermined magnification. In the second step the focusing lens is adjusted so that it is positioned at the place where the focus measure is the maximum. The camera system implemented for the experiments has shown that the proposed algorithm spends about 0.56 second on average fur obtaining a focused image.

• 대한치과의료관리학회지
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• 제10권1호
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• pp.76-83
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• 2022

This study was undertaken to confirm the relationship between the manner of focus and job performance of clinical dental hygienists. A survey was conducted, and the results of the survey were analyzed using multiple regression analysis. As a result, in the correlation between job performance ability and focusing manner and appreciation of the experience process, which are sub-factors of job performance ability and focusing manner, r=.161 (p<0.1) and appropriate distance r=.229 (p<0.1) indicated a positive (+) correlation. Multiple regression analysis revealed that the factors that have the greatest influence on job performance are type of workplace (β=-0.381), focusing attitude (β=0.166), marital status (β=-0.156), and age (β=0.152). Therefore, by confirming the relationship between focusing and job performance ability, we intend to provide the basic data necessary to prepare measures to improve dental hospital management and job performance.

• 대한지구과학교육학회지
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• 제7권1호
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• pp.133-143
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• 2014

The purpose of this study was to examine the effect of scientific discussion classes focusing problem finding on the primary school students' scientific creative problem solving ability, science process skills and attitude toward science class. To verify this research problem, the subject of this study was fifth-grade students selected from four classes of M elementary school located in Busan city. For four months, the experimental group of 51 students was taught using the "scientific discussion classes focusing problem finding". The control group also of 53 students was taught in normal classes which used a text-book. All students were given pre and post test to verify the effects of scientific discussion classes focusing problem finding on the primary school students' scientific creative problem solving ability, science process skills and attitude toward science class. The results from this study are as the following. First, the scientific discussion classes focusing problem finding were effective in scientific creative problem solving ability among the primary school students. It is possibly because in the process where one student compare his/her own thoughts with the others' ones and discuss them. Second, the scientific discussion classes focusing problem finding were effective in science process skills among the primary school students. Third, the scientific discussion classes focusing problem finding were effective in attitude toward science class. In conclusion, the scientific discussion classes focusing problem finding had positive effects on improvement of primary school students' scientific creative problem solving ability, science process skills and also could lead to a change in students' cognition about science class to a positive way. Therefore, the scientific discussion class focusing problem finding is hopefully to be provided as an effective instructive strategy of science class in school in the future.

• 한국콘텐츠학회논문지
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• 제20권7호
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• pp.451-463
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• 2020

본 연구는 한 상담자의 포커싱 워크숍 경험을 통한 포커싱적 태도 훈련 체험에 대한 내러티브적 묘사이다. 연구 참여자들이 3차원적 내러티브 탐구 공간(시간, 장소, 상호작용)에 따라 삶의 이야기를 어떻게 경험하게 되는지, 그리고 그 경험의 의미는 어떻게 구성되는지를 탐색하였다. 본 연구로부터 얻은 결론은 한 상담자의 포커싱 훈련을 통한 자기 자신 경험과의 접촉(자기인식과정)은 심리치료과정에서 내담자 자신의 경험적 접촉을 촉진할 수 있었으며 그 결과 내담자와 깊이 있는 관계를 맺을 수 있도록 유도할 수 있었다. 포커싱 훈련을 통해 신체가 느끼는 '감각느낌'을 '있는 그대로' 느끼며 알아차리는 자기인식 과정인 포커싱적 태도는 자기 틀에서 벗어나 삶에 대해 다양한 관점을 가질 수 있는 자아확장의 계기가 되었다. 본 연구의 목적은 한 상담자의 포커싱 훈련을 통해 확보된 포커싱적 태도는 어떤 의미를 가지는지 알아보고 앞으로 더욱 진전될 수 있는 포커싱 워크숍 준비를 위한 연구로써 그 의의가 있다.

• 근관절건강학회지
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• 제30권3호
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• pp.208-217
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• 2023

Purpose: The aim of this study was to investigate the degree of stress, resilience, focusing manner, and quality of life among burn rehabilitation patients. Furthermore, it seeks to identify factors affecting the quality of life in this patient group. Methods: The participants of this study were 129 burn patients, aged 19 or older, who received treatment at the rehabilitation of a university hospital in Seoul. Data were collected from June 22 to August 31, 2022 through self-report questionnaires covering stress, resilience, focusing manner and quality of life.The data were analyzed using the SPSS 29.0 program. Results: Multiple regression analysis showed that education level, cause of burn, area of burn, pain, stress, and focusing manner significantly affected the quality of life, explaining 74.5% of the variance. Conclusion: In particular, focusing manner was a major factor affecting the quality of life in burn rehabilitation patients. Therefore, there is a need to develop intervention programs aimed at increasing focusing manner in this patient group.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 학술대회 논문집 정보 및 제어부문
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• pp.595-597
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• 2004

In this paper range measurement systems using ultrasonic and visual sensors are designed. By varying the focus of a camera, the range to a target pattern is computed. Pour different methods are tested for the focusing-based range measurement. The best result is obtained when counting edge pixels found by Laplacian operator. Higher accuracy can be obtained by fusing the measurement of camera focusing with that of ultrasonic sensor. The system designed is experimented within the range of 300-450mm.

• 한국음향학회:학술대회논문집
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• 한국음향학회 1984년도 추계학술발표회 논문집
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• pp.78-82
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• 1984

The purposed of this paper is to realize two dimensional acoustic image using focusing method. In the experiment, it consists of phase delay part, 14 analog multiplexers, multi-amplifiers, A/D converter, DMA interfacing parts, two linear arrays(resonance frequency 25 KHz, radius 0.75 Cm diac type). Finally in this experimental result, both electrical deflection and dynamic focusing are realized and gets two dimensional acoustic image using focusing method.