• 한국실내디자인학회논문집
• /
• 제23권1호
• /
• pp.162-171
• /
• 2014

This study aimed to evaluate how universal design principles are embodied in the village community center. It will provide preliminary data on constructing a physical space of village community center as small community space in agricultural districts. To achieving the purpose in this study, the research conducted inspection using checklist to 25 village community centers at Hwasoon, Jeonnam province. The conclusion of this study is as follows: Living room and kitchen/dining room by supportive design urgently need installation of Western Style furniture and solutions of stair gap by accessible design, and also the evaluation is unsuited on a fire-gas alarm system and prevention of electric shook system on safety-oriented design. Entrance evaluated in principle for insufficient on safety handle by supportive design and spare chair by adaptable design, and also it unsuited on the solutions of door sill by accessible design and non-skid by safety-oriented design. Bathroom is insufficient lever handle and safety grip by supportive design, sink isn't suitable by adaptable design. Outdoor space information legislation staircase ramp installation and horizontal installation of the staircase was not built.

• 한국정밀공학회:학술대회논문집
• /
• 한국정밀공학회 2000년도 추계학술대회 논문집
• /
• pp.759-762
• /
• 2000

Rapid Prototyping (RP) techniques have their unique characteristics according to the working principles: stair-stepped surface of parts due to layer-by-layer stacking, low build speed caused by line-by-line solidification to build one layer, and additional post processing to improve surface roughness, so it is required very high cost to introduce and to maintain RP apparatus. The objective of this study is to develop and design a new RP process, Variable Lamination Manufacturing using expandable polystyrene foam sheet as part material (VLM-S), which can make up for the disadvantage of existing techniques, and to develop an apparatus to implement the process. In order to examine the possibility of practical utilization of the proposed VLM-S process for prototyping of a general three-dimensional shape, an auto-shift lever knob and a pyramid shape were fabricated.

• 한국정밀공학회:학술대회논문집
• /
• 한국정밀공학회 2000년도 추계학술대회 논문집
• /
• pp.763-766
• /
• 2000

Rapid Prototyping(RP) techniques have their unique characteristics according to the working principles: stair-stepped surface of parts due to layer-by-layer stackin, low build speed caused by line-by-line solidification to build one layer, and additional post processing to improve surface roughness, so it is required very high cost to introduce and to maintain RP apparatus. The objective of this study is to develop software for automatic generation of unit shape part (USP) for a new RP process, Variable Lamination Manufacturing using linear hotwire cutting technique and expandable polystyrene foam sheet as part material (VLM-S). In order to examine the applicability of the developed software to VLM-S, USP's of general three-dimensional shapes, such as an auto-shift lever knob and a pyramid shape were generated.

• 한국수학사학회지
• /
• 제23권3호
• /
• pp.121-140
• /
• 2010

본 논문은 속도, 온도, 농도, 밀도, 단가, 일인당 국민소득 등의 내포량의 평균을 구할 때, 내포량마다 다른 공식을 적용하여 구해야 하는 불편함을 해소하기 위하여, 지레의 원리를 이용하여 두 내포량의 평균 공식 $M=\frac{x_1f_1+x_2f_2}{f_1+f_2}$를 유도하였고, 이 공식의 관계적 이해를 돕기 위해 지레의 원리를 이용한 조작적 학습법을 제시하였다. 비의 의미의 분수는 그 수치만으로 덧셈을 할 수가 없어 비가법적이라고 한 것을 비중을 적용하여 계산할 수 있음을 보인 것이다. 또한 두 양에서뿐만 아니라 여러 양의 덧셈도 단 한번의 공식에의 적용으로 해결할 수 있도록 확장 적용시킨 $M=\frac{x_1f_1+x_2f_2+{\cdots}+x_nf_n}{N}$ (단, $f_1+f_2+{\cdots}+f_n=N$) 은 새로운 공식이 가중평균을 구하는 공식이었다는 것을 밝혔다. 또한 통계학에서 의문거리였던 하위 제표의 방향성과 다른 모습을 보이는 상위제표의 통계자료에 대한 심프슨의 파라독스의 의문점을 가중평균의 원리를 이용하여 밝혔다.

• International Journal of Computer Science & Network Security
• /
• 제22권7호
• /
• pp.359-365
• /
• 2022

Scholars are paying increasingly close attention to brain research and the creation of biological neural networks, artificial neural networks, artificial intelligence, neurochips, brain-computer interfaces, prostheses, new research instruments and methods, methods of treatment, as well as the prevention of neurodegenerative diseases based on these data. The authors of the study propose their hypothesis on the understanding of the phenomenon of consciousness that answers questions concerning the criteria of consciousness, its localization, and principles of operation. In the study of the hard problem of consciousness, the philosophical and scientific categories of consciousness, and prominent hypotheses and theories of consciousness, the authors distinguish "the area of the conscious mind", which encompasses several states of consciousness united by the phenomenon of integrated consciousness. According to the authors, consciousness is a kind of executor of the phenomenological idea of the "chalice", so the search for it should be conducted deeper than the processes in the power of thought consciousness and transconsciousness, to which integrated consciousness can act as a lever. However, integrated consciousness may have the capacity to transcend into lower states of consciousness, which requires further study.

• 한국정밀공학회지
• /
• 제32권12호
• /
• pp.1049-1054
• /
• 2015

Nowadays, there are many researches involving structural actuators, which have adjustable stiffness; they are also called variable stiffness actuators (VSA). The VSAs can adjust the characteristics of actuators for various functions and human-machine safety. This paper describes the design and analysis of two types of VSAs. To adjust stiffness, the actuators are controlled by a principle of lever ratio mechanism, by changing a pivot position or a spring position in the structure with springs. To make the principle workable, the designs are simplified by using a ball screw system with a motor. Each structure shows different static properties with variable rates of stiffness. We have also shown the experimental verification of the dynamic performance of the two types of VSAs. This research can be applied to various industrial fields, where humans work in conjunction with robots.

• 대한수학교육학회지:학교수학
• /
• 제7권4호
• /
• pp.391-402
• /
• 2005

도형의 무게중심에 대한 일반적인 고찰은 삼각형의 무게중심에 대한 오개념을 올바르게 이해하게 해 주며, 일반화와 특수화, 해의 존재성과 유일성, 실세계의 수학적 모델링, 공리적 방법론 등과 관련하여 교육적으로 유익한 논의를 유발시킨다 는 점에서 가치가 있다. 본 연구는 무게중심에 대한 오개념의 파악과 해소를 위한 수학적 분석을 제시했으며, 다각형의 무게중심을 구하는 학생들의 잘못된 전략을 분석하여 교육적인 시사점을 얻었다. 또한, 다각형 무게중심의 탐구과정에서 제기될 수 있는 논리적 문제를 밝히고 해결하였다.