다채널 근전도 신호를 이용한 체감형 게임 인터페이스 개발

김강수(Kim, Kang-Soo),한용희(Han, Yong-Hee),정원범(Jung, Won-Beom),이영호(Lee, Young-Ho),강정훈(Kang, Jung-Hoon),최흥호(Choi, Heung-Ho),문치웅(Mun, Chi-Woong) 한국게임학회 2010 한국게임학회 논문지 Vol.10 No.5

본 논문에서는 생체 신호를 이용하는 체감형 게임 인터페이스 개발을 위하여 근전도 신호로부터 사용자의 동작 의도를 실시간으로 인식할 수 있는 장치를 개발하여 방향성을 필요로 하는 게임에 적용하였다. 근전도 신호를 획득하기 위한 장치는 4 채널로 이루어지며, 정의되는 손목동작으로는 Up, Right, Down, Left로 규정하였다. 각각의 동작으로부터 획득한 신호를 문턱치와 채널 간의 비교를 통하여 사용자의 의도를 인식하게 하였다. 방향성 분류 결과를 통하여 키보드의 방향키를 제어하고, 게임에 적용하게 된다. 개발된 장치는 재미와 흥미를 유도하여 효과적인 운동을 기대할 수 있으며, 상용화된 게임에도 적용할 수 있다. In this paper, we developed the device for an interactive game interface using bio signals which were able to recognize user's motion intention using EMG signals and it was applied to the games which need the information of the muscle motion directions. The module for acquiring EMG signals consists of 4-Ch, wrist-motions were defined as up, right, down and left state. The user's intent was recognized through thresholding and comparing signals of each channel. The classification result of the motion directions could control the arrow keys on the keyboard of PC and it was applied on the various games. This proposed game device can be expected to induce an effective exercise with an interesting and enjoyment, and it can use both self-developed or commercial games.

Zr-2.5Nb 압력관 크랙선단에서 수소화물의 응력해석

김강수(Kang Soo Kim),김영석(Young Suk Kim),정용무(Yong Moo Cheong),안상복(Sang Bok Ahn),임경수(Kyoung Soo Im) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.3

Delayed Hydride Cracking (DHC) tests are conducted by using CT specimens of Zr-2.5Nb at 250℃. The test data is inputed for the FEM model. The stresses of the hydride and Zr-2.5Nb elements near the crack tip of the FEM model are examined. Also, the plastic zone size and average stresses near the crack tip are calculated for checking the effects of the plastic constraint. The material behavior of the elements near a crack tip, the hydride expansion stress, the hydride fracture strength and the size of the plastic zone according to each K are found. Also, Stage Ⅰ and Stage Ⅱ of the unique DHC phenomenon can be explained through an analysis of the plastic constraint force in the plastic zone.

개정 국어과 교육과정에 나타난 문제점 짚어보기 - 초등과정을 중심으로

김강수(Kim Kang-soo) 우리말교육현장학회 2007 우리말교육현장연구 Vol.1 No.-

  이 글은 개정 국어과 교육과정의 개발과정과 내용체계들을 초등현장 교사의 입장에서 살펴보고 그것이 교육 현장에서 어떻게 구현될 수 있을 것인가, 어떤 문제점을 낳을 수 있을 것인가를 구체적으로 논의해보려는 목적으로 쓴 것이다.<BR>  교육과정은 교육현장의 교사들에게 가르치는 목표와 내용, 방법 등에 관한 지침의 구실을 하지만, 내용과 방법을 포괄적으로 기술할 뿐 아니라 전체적인 체계에서 통일성을 고려하다보니 대단히 추상적인 말로 정리되어 있다. 따라서 현장의 교사는 교육과정 문서만으로는 새로운 교육과정이 구체적으로 어떻게 실현될 것인가에 대해서는 쉽게 가늠하기가 어렵다. 현장의 교사들이 개정 교육과정을 쉽게 이해하고 함께 논의해볼 수 있도록 하려면 현장의 경험을 바탕으로 이야기를 풀어가야 한다고 생각한다.<BR>  이 글은 현장의 경험을 바탕으로 개정 교육과정의 내용 영역을 통합해야 하는 필요성, 지역화 교육이 이루어져야 하는 이유와 구체적 실현 방법, 내용의 적정성과 위계성에 대한 문제를 제기하고 있다. 즉 그것들이 개정 교육과정에서 문제가 되고 있으며, 교육과정의 현실적인 적용을 어렵게 하고 있다는 생각을 담고 있다. 현장의 경험을 바탕으로 논의를 펼쳐나가기 때문에 객관성이나 체계성이 떨어질 수는 있지만, 초등 교육 현장을 실천적으로 반영한 글로 읽히기를 바라며, 현장의 교사들이 개정 교육과정에 대해 적극적으로 이해하고 논의할 수 있는 기회가 되기를 바란다.   The object of this essay is to discuss problems that may arise from revised Korean language curriculum and how the curriculum can be effectively realized in actual teaching environment after due consideration of how the curriculum was developed and put together from an elementary school teacher’s point of view.<BR>  Educational curriculums act as teachers’ guide to help them with teaching contents or teaching methods, but since they include wide range of information and because they were put together considering unity of the information, the contents are very abstract. That is why, teachers cannot easily figure out how the revised curriculum should be practiced with the documents only. In order to discuss how teachers can understand the revised curriculum, I believe it is best to write from actual experience.<BR>  This essay discuss problems in necessity of uniting revised curriculum contents, reason for necessity of localized education system and details of how it is achieved, and propriety of contents. I believe that these are obstacles for practicing revised curriculum and they are holding back actual application of the curriculum. This essay might lack objectivity and systemicity because it is written on the base of one’s experience, but I hope that this essay is read knowing that this essay is reflecting actual practice of education. I also hope that this essay will provide a chance for teachers to understand and discuss revised curriculum education process.

통신 시스템 환경에서 NAND Flash Memory 를 위한 Flash File System 에 관한 연구

김강수(Kim Kang Soo) 한국통신학회 2010 한국통신학회 학술대회논문집 Vol.2010 No.2

Zr-2.5Nb 압력관에서 Hydride 파괴해석

김강수(Kang Soo Kim),김영석(Young Suk Kim),정용무(Yong Moo Cheong),안상복(Sang Bok Ahn),임경수(Kyoung Soo Im) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.8

The objective of this study is to suggest the new mechanism of DHC. At the stage Ⅰ of DHC, DHC velocity increase quickly and that is constant at the stage Ⅱ even if the stress intensity factor(K) increase. Also, the striation spacing on the fractured surface of DHC CT specimen is firstly wide and becomes gradually narrow according to increasing K value. Finally, that becomes constant at the stage Ⅱ. The new DHC model suggested can explain the above situation. To this end, CT specimen is modelled using FEM and the behavior of the elements near the crack tip is examined. Also, the direction of the principal stress, the maximum shear stress and the plastic zone size near the crack tip is calculated.

이종재료 Butt 용접에 대한 Overlay 용접의 잔류응력해석

김강수(Kang Soo Kim),이호진(Ho Jin Lee),이봉상(Bong Sang Lee),정인철(In Chul Jung),변진귀(Jin Gwi Byeon),박광수(Kwang Soo Park) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.11

In recent years, the dissimilar metal, Alloy 82/182 welds used to connect stainless steel piping and low alloy steel or carbon steel components in nuclear reactor piping system have experienced cracking due to primary water stress corrosion(PWSCC). It is well known that one reason of the cracking is the residual stress by the weld. But, it is difficult to estimate exactly weld residual stress due to many parameters of welding. In this paper, the analysis of 3 FEM models made by ABAQUS Code is performed to estimate exactly the weld residual stress on the dissimilar metal weld. 3 FEM models are Butt model, Repair model and Overlay model and are the plane?strain 2D model. The thermal analysis and the stress analysis are performed on each model and the residual stresses on each model were calculated and compared respectively. Also, the specimen of Butt model was made and the residual stresses were measured by X-Ray method and Hole Drilling Technique. These results were compared with the FEM result of Butt model.

갭요소를 사용한 최적 H형 지지격자 스프링의 유한요소해석

김강수(Kang Soo Kim),윤경호(Kyung Ho Yoon),송기남(Kee Nam Song) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.11

The spring characterization test of 16 by 16 spacer grid assembly were conducted by using Universal Tensile Testing Machine and the displacement-load curve of the spring was obtained. 4 FEM models were made by IDEAS code for simulating the spring characterization test. The results of the characterization test were compared with those of FEM analysis by ABAQUS code. 8 by 9 cell model included many more cells for the height direction showed more flexible characterization. The result of 5 by 5 cell model, which the load was applied at the top plate of the assembly, showed a good agreement in comparing with the result of the spring characterization test. Therefore, when the new spring is designed, the result of the appropriate FEM model is to be used as the spring characterization data without the spring characterization test.

친환경 인증 자연채광 평가기준의 비교 분석에 관한 연구

김강수(Kim Kang-Soo),정회영(Jung Hoe-Young) 대한건축학회 2009 대한건축학회논문집 Vol.25 No.11

The purpose of this study was to provide the guidelines of Daylighting Criteria for the Green Building Certification in Korea. First, the base model (6m×9m×2.7m) was used to analyze design alternatives (window-wall-ratio, visible transmittance and overhang) by Radiance simulations. Results showed that CASE 4 (wwr - 60%, OH - 120cm) has proper average illuminance levels and higher illuminance uniformities. Second, the base model was evaluated by LEED 2.1 & 2.2, BREEAM and CASBEE daylighting criteria. As a result, BREEAM evaluate the daylight factor and the illuminance uniformity together, and this method can contribute to make up for the weakness of daylight factor index only. So BREEAM is the most effective criteria to evaluate daylight quantity and quality based on the model study in this research.

CDSS 실용화를 위한 ArdenML XSLT 개발 -VB.NET을 활용한-

김강수 ( Kang Soo Kim ),채영문 ( Yong Moon Chae ),김석일 ( Suk Il Kim ),이병화 ( Byung Hwa Lee ) 한국보건정보통계학회(구 한국보건통계학회) 2015 보건정보통계학회지 Vol.40 No.1

Objectives: The ArdenML is an HL7 standard language for an XML-based representing medical knowledge as logic statements. Problems related to execution of ArdenML are the curly braces problem and the compiler problem, which may be resolved by the introduction of XML-based techniques. This study was aimed at develop an ArdenML based XSLT conforming to HL7 standard. Methods: There were several structural differences in three approaches: Arden Syntax is category; ArdenML is tag; and Visual Basic is comment, function, events, class, and procedure. XSLT was developed by analyzing three approaches. Based on XSLT, ArdenML was translated into Visual Basic and the interface module was developed to allow communicating with legacy systems. Results: Most of the CDSS are independently developed and run, to require reentry of rules. But this system makes it easier to interface with the existing systems simply by translating or compiling rules. Two hundred sixty five of the 285 rules were showed the success after compiling, and 6 errors for the operater query, 14 warnings related to data type were resolved by data re-modeling. Conclusions: ArdenML has been converted into executable files using standard transforms written in the eXtensible Stylesheet Language Transformation (XSLT) in visual basic language. Development of Arden Syntax compiler requires not only a lot of time and efforts, but also reorganization of existing systems according to the MLM. It also has curly brace problem and problem of requiring additional compiler.

예비타당성조사 도입 성과 분석: 교통량 예측 오차를 중심으로

김강수(KIM, Kang-Soo),백승한(BAEK, Seunghan) 대한교통학회 2020 교통 기술과 정책 Vol.17 No.4