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      • KCI등재

        한국인의 방언 태도에 대한 추이 연구

        김덕호(Kim, Deok-Ho) 한국어문학회 2014 語文學 Vol.0 No.126

        According to the Framework Act on the National Language(2005)’s Article 9 languages Survey Section, the government shall conduct research of the korean’s language ability and language consciousness, language use environment. Accordingly, they are investigating the consciousness language of the people every five years. This study was attempted to investigate the change of attitude towards the dialect awareness among citizens of Korean consciousness. Especially since 2005, five years is a cycle consisting of language attitude survey is scheduled to be the third survey in the next year, I will predict the result before proceeding encounter while browsing the dialect attitude research part in the preliminary pilot study and had to find a complements. Also tried to use the Google Docs Form, an online survey method, while conducting a survey exploring new ways of surveys. Overall analysis that will be gradually increased affinity for the dialect. Also good and bad for the standard language and other dialects could find the attitude that becomes clear. There are also aware of the cultural heritage of the region dialect gradually increasing, we believe the public environment in the generous attitude toward acting and dialects used. Finally, this pilot study could think through the preliminary search study are as follows. First, I propose to put in the questionnaire survey to teenager participants to investigate the dialect poetry attitude. Second, in the case of dialect attitude image for their tongues and other tongues, and you have an in-depth investigation and research on the perception of dialects allow. Finally, I hope this research after 2015 this online survey conducted five years of planning and the language of the people in the interregnum period between consciousness and language policy by identifying the winds of change that can meet people’s attitude is making.

      • KCI등재

        힘 피드백 기반의 세포조작을 위한 세포막 침습력 측정

        김덕호,윤석,강현재,김병규,Kim, Deok-Ho,Yun, Seok,Kang, Hyun-Jae,Kim, Byung-Kyu 대한기계학회 2003 大韓機械學會論文集A Vol.27 No.12

        In biological cell manipulation, manual thrust or penetration of an injection pipette into an embryo cell is currently performed by a skilled operator, relying on visual feedback information only. Accurately measuring cellular forces is a requirement for minimally invasive cell injections. Moreover, the cellular force sensing is essential in investigating the biophysical properties for cell injury and membrane modeling studies. This paper presents cellular force measurements for the force feedback-based biomanipulation. Cellular force measurement system using piezoelectric polymer sensor is implemented to measure the penetration force of a zebrafish egg cell. First, measurement system setup and calibration are described. Second, the force feedback-based biomanipulation is experimentally carried out. Experimental results show that it successfully supplies real-time cellular force feedback to the operator at tens of uN and thus plays a main role in improving the reliability of biological cell injection tasks.

      • Adaptive Compensation Control of Vehicle Automatic Transmissions for Smooth Shift Transients Based on Intelligent Supervisor

        김덕호,한진오,신병관,이규일,Kim, Deok-Ho,Han, Jin-O,Sin, Byeong-Gwan,Lee, Gyu-Il 대한기계학회 2001 KSME International Journal Vol.15 No.11

        In this paper, an advanced shift controller that supervises the shift transients with adaptive compensation is presented. Modern shift control systems for vehicle automatic transmission are designe d to provide smooth transients for passengers' comfort and better component durability. In the conventional methods, lots of testing and calibration works have been done to tune gains of the controller, but it does not assure optimum shift quality at all times owing to system variations often caused by uncertainties in shifting hydraulic systems and external disturbances. In the proposed control scheme, an adaptive compensation controller with intelligent supervisor is implemented to achieve improved shift quality over the system variations. The control input pattern which generates clutch pressure commands in hydraulic actuating systems, is updated through a learning process to adjust for each subsequent shift based on continuous monitoring of shifting performance and environmental changes. The proposed algorithm is implemented and evaluated on the experimental test setup. Results from the experimental studies for several operation modes show both improved performance and adaptability of the proposed shift controller to uncertain changes of the shifting environment in vehicle power transmission systems.

      • KCI등재

        다중 시그니처 비교를 통한 트랜잭셔널 메모리의 충돌해소 정책의 성능향상

        김덕호,오두환,노원우,Kim, Deok-Ho,Oh, Doo-Hwan,Ro, Won-W. 한국정보처리학회 2011 정보처리학회논문지 A Vol.18 No.1

        다중 코어 프로세서가 널리 보급되면서 멀티 쓰레디드 프로그램 상의 동기화를 용이하게 구현할 수 있는 해결 방안으로 트랜잭셔널 메모리가 각광을 받고 있다. 이를 위해 고성능의 하드웨어 트랜잭셔널 메모리에 관한 연구가 활발히 진행되고 있으며, 대표적인 연구결과로 UTM, VTM, FastTM, LogTM, LogTM-SE 등이 소개되었다. 특히, 충돌 감지 정책으로 시그니처를 사용한 LogTM-SE는 효율적인 메모리 관리와 쓰레드 스케쥴링을 통해 고성능의 트랜잭셔널 메모리를 구현하였다. 하지만, 이 방식은 프로세서 내부의 코어 수가 증가하는 것에 비례하여 한 코어가 비교해야 하는 시그니처의 수가 증가하는 문제점을 갖고 있다. 이는 시그니처 처리 과정에서 병목현상을 야기하여 전체 성능을 저해하는 요인이 될 수 있다. 본 논문에서는 시그니처 비교 과정에서 나타날 수 있는 이러한 병목 현상을 개선하여 전체 트랜잭셔널 메모리의 성능 향상을 이루고자 다중 시그니처 비교 방식의 새로운 구조를 제안한다. As era of multi-core processors has arrived, transactional memory has been considered as an effective method to achieve easy and fast multi-threaded programming. Various hardware transactional memory systems such as UTM, VTM, FastTM, LogTM, and LogTM-SE, have been introduced in order to implement high-performance multi-core processors. Especially, LogTM-SE has provided study performance with an efficient memory management policy and a practical thread scheduling method through conflict detection based on signatures. However, increasing number of cores on a processor imposes the hardware complexity for signature processing. This causes overall performance degradation due to the heavy workload on signature comparison. In this paper, we propose a new architecture of multiple signature comparison to improve conflict detection of signature based transactional memory systems.

      • KCI등재

        An Efficient Parallelized Algorithm of SEED Block Cipher on Cell BE

        김덕호,이재영,노원우,Kim, Deok-Ho,Yi, Jae-Young,Ro, Won-Woo Korea Information Processing Society 2010 정보처리학회논문지 A Vol.17 No.6

        본 논문에서는 Cell BE 프로세서를 사용한 효율적인 병렬 블록 암호화 알고리즘을 제시한다. 제안하는 알고리즘은, 이종 프로세서인 Cell BE의 특성을 효율적으로 활용하기 위하여 PPE와 SPE에 서로 다른 부호화/복호화 방식을 적용하여 그 성능을 개선하였다. 본 논문에 제시된 구현 방식을 바탕으로 검증된 결과에 따르면, 제안하는 알고리즘은 고성능 네트워크 시스템을 지원할 수 있는 2.59Gbps의 성능을 보여준다. 이는, 다른 다중 코어 프로세서의 병렬 구현 방식과 비교할 때, 1.34배 증가된 성능의 부호화/복호화 속도를 제공한다. In this paper, we discuss and propose an efficiently parallelized block cipher algorithm on the CELL BE processor. With considering the heterogeneous feature of the CELL BE architecture, we apply different encoding/decoding methods to PPE and SPE and improve the throughput. Our implementation was fully tested, with execution results showing achievement of high throughput, capable of supporting as high network speed as 2.59 Gbps. Compared to various parallel implementations on multi-core systems, our approach provides speedup of 1.34 in terms of encoding/decoding speed.

      • KCI등재

        기타 초등교육 : 예비 초등교사들의 퇴적암 개념에 관한 연구

        김덕호 ( Deok Ho Kim ),홍승호 ( Seung Ho Hong ) 서울敎育大學校 初等敎育硏究所 2014 한국초등교육 Vol.25 No.2

        퇴적암은 과거 퇴적 당시의 환경을 추론할 수 있는 여러 가지 증거를 포함하고 있다. 이러한 과학적인 증거들은 지구의 역사와 지질시대의 환경을 해석하는데 중요한 역할을 하기 때문에 초등학생 때부터 퇴적암에 대한 개념을 바르게 이해할 필요가 있다. 이와 더불어 미래에 초등학생들을 가르치게 될 예비 초등교사의 퇴적암에 대한 인식도 매우 중요하다고 할 수 있다. 이에 본 연구는 예비 초등교사의 퇴적암에 대한 개념 정도를 알아보기 위하여 검사 문항을 제작하고, 이를 J 대학교 교육대학 3학년 학생 121명을 대상으로 조사하였다. 연구 결과, 전체 문항에 대한 평균 오답률이 30.2%로 나타나 여전히 퇴적암에 대한 오개념을 갖고 있다고 볼 수 있다. 선택형 문항을 분석한 결과 총 12개의 문항 중 5개의 문항에서 평균 이상의 오답률을 나타내었으며, 성별 간에서는 2개 문항에서 유의미한 차이를 나타내었다. 또한, 개방형 문항인 ‘퇴적암의 생성원인’, ‘퇴적암의 구분 기준’ 그리고 ‘퇴적 형태’에 대해서 응답을 유형별로 정리하여 개념 정도를 파악하였다. 결론적으로 예비 초등교사들의 퇴적암에 대한 오개념을 과학 개념으로 교정하기 위해 교육대학에서는 체험 학습이나 다양한 학습 자료 등을 적용한 효율적인 교수-학습 전략을 마련할 필요가 있다. Sedimentary rock have a number of evidences that can deduce the environment when it is deposited. Using this scientific evidences, it plays an important role in interpret the Earth`s history and the environment of geologic eras. So, it needs to be correctly recognize the concept of sedimentary rock from the elementary school students. Along with this, the understanding on sedimentary rock of pre-service elementary school teachers is very important, too. The purpose of this study is to develop the conception evaluation items to know conception understanding on sedimentary rock of pre-service elementary school teachers. And, the evaluation was carried out with 121 pre-service elementary school teachers of J National University. As the results, average percentage of incorrect answers for the entire evaluation items was 30.2%, they still had misconceptions on sedimentary rock. The results of analyzing the multiple choice questions, the 5 items of the 12 conception questions were higher than average percentages of incorrect answer. The significant differences were 2 items of between the gender. Also, ‘The formation of sedimentary rock’, ‘The classification criteria of sedimentary rock’ and ‘The process of sedimentation’ in open-type questions for the descriptive answers, identify the type of response and understand the recognition of sedimentary rock. In conclusion, it would be beneficial to offer efficient teaching and learning strategies using the inquiry learning or the experiential learning and a variety of learning materials in the teacher`s college, would help to correct misconceptions into scientific conceptions of pre-service elementary school teachers.

      • KCI등재

        STEAM 프로그램을 적용한 과학수업이초등학생의 창의성과 과학교과 흥미도에 미치는 영향

        김덕호 ( Deok Ho Kim ),고동국 ( Dong Gook Ko ),한명재 ( Myeong Jae Han ),홍승호 ( Seung Ho Hong ) 한국과학교육학회 2014 한국과학교육학회지 Vol.34 No.1

        과학 기술 경쟁 시대라는 시대적 흐름에 따라 세계 주요 국가들이STEAM 교육에 주목하고 있다. 우리나라 과학교육의 목적이 과학적 소양을 지닌 창의적 인재 육성이라는 점에서 보면 STEAM 교육의 필요성은 부정할 수 없는 사실이다. 이에 본 연구에서는 초등학교6학년 과학 교과에서 활동과 흥미를 고려한 주제 중심의 STEAM통합교육 프로그램을 개발하여 초등학생의 창의성 및 과학교과 흥미도에 어떤 영향을 주는지 알아보고자 하였다. 본 연구에서 개발한STEAM 교육 프로그램은 6학년 각 단원별 마무리 활동에 단원 정리 및 심화. 보충활동으로 적용할 수 있도록 개발하였다. 주제별 활동중심의 프로그램으로 학생들의 과학 학습을 통해서 창의성 및 과학교과흥미 도를 높이는데 주안점을 두었다. 개발한 STEAM 프로그램을 J도내 3개 초등학교 학생들에게 사전. 사후에 투입한 결과, 실험 집단은 비교 집단에 비해 초등학생들의 창의성 및 과학 교과 흥미도가 유의미하게 향상되었다. 따라서 지속적이며 체계적인 STEAM 프로그램의 개발이 요구되며, 더 나아가서는 초등학교 전 학년에 걸쳐 적용할 수 있는 STEAM 프로그램을 개발하고 교육현장에서 적극적으로 활용하려는 노력이 이루어져야 할 것이다. According to trends in scientific technical competition, many countries around the world are interested in and focused on the STEAM integrated education. By observing the fact that the goal of our country`s science education is to cultivate creative workers who have scientific knowledge, the need for STEAM integrated education cannot be denied. Therefore, the purpose of this study was to develop the STEAM integrated program focused on themes that considered activities and interest in the grade 6 science subject in order to identify its influence on the creativity and interest levels of elementary students. The STEAM integrated education program in this study was developed so that it can be applied as a unit review or reinforcement activities in the closing activities per unit in grade 6. The focus was placed on heightening students` creativity and interest in science subject learning through a program focused on activities per theme. As a result of applying the developed STEAM integrated program in prior and post conditions on 3 elementary school`s students in J Province, it was discovered that significant improvement was found in the creativity and scientific interest of elementary students in the experimental group, compared to the control group. Therefore, continuous and systematic development of the STEAM integrated education program is required, and moreover, it must be developed for all elementary grade levels and efforts should be put into actively applying the program in the field of education.

      • KCI우수등재
      • KCI등재

        동력전달용 기계부품의 물성 확보를 위한 인라인 인산염 피막처리 공정기술개발

        김덕호 ( Deok-ho Kim ),구영진 ( Young-jin Ku ) 한국산업융합학회 2022 한국산업융합학회 논문집 Vol.25 No.2

        The steel wire or steel bar processing process applied to the manufacture of various bolts and power transmission shafts was improved by applying in-line phosphate film treatment technology. By applying a polymer lubricant for a non-reactive metal forming process and a non-reactive non-phosphorus lubricating coating agent, the film formation for each process time was comparatively analyzed and reviewed. Compared to the nine processes applied previously, the in-line phosphate film treatment technology applied with only two processes has been effectively improved in terms of reduction of treatment time, reduction of facility installation area, prevention of water pollution due to wastewater, and non-use of ozone-depleting substances. In addition, it was found that it can have an important effect on productivity improvement and price competitiveness from the simplification of quality control and process control as well as improvement of the working environment.

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