• 문화기술의 융합
• /
• 제5권4호
• /
• pp.51-60
• /
• 2019

본 연구의 목적은 인공지능과 사물인터넷이 주도하는 스마트 지능정보화사회에서 예상 가능한 쟁점들을 고찰하고 쟁점 해결의 방안을 공공PR의 측면에서 고찰하는 것이다. 연구결과 다음과 같은 결과를 얻었다. 첫째, 예상가능한 쟁점은 크게 3가지로 분류된다는 것이다. 둘째, 쟁점 해결을 위해서는 소외되는 공중을 위한 새로운 패러다임을 만들고 이에 동참하게 하는 공익캠페인 수행이 필요하다는 것이다. 셋째, 쟁점 해결 대안으로 복지기술을 고려해 볼 수 있으며 복지기술이 제도적으로 뒷받침되고 사회전반에 뿌리 내리기 위해서는 정책PR을 포함하는 공공PR이 중요한 역할을 담당해야 한다는 것이다.

• Steel and Composite Structures
• /
• 제48권4호
• /
• pp.419-428
• /
• 2023

In this paper, dynamic and static bending of ball modelled by nanocomposite microbeam by nanoparticles seeing agglomeration is presented. The structural damping is considered by Kelvin-Voigt model. The agglomeration effects are assumed using Mori-Tanaka model. The football ball is modeled by third order shear deformation theory (TSDT). The motion equations are derived by principle of Hamilton's and energy method assuming size effects on the basis of Eringen theory. Using differential quadrature method (DQM) and Newmark method, the static and dynamic deflections of the structure are obtained. The effects of agglomeration and CNTs volume percent, damping of structure, nonlocal parameter, length and thickness of micro-beam are presented on the static and dynamic deflections of the nanocomposite structure. Results show that with increasing CNTs volume percent, the maximum dimensionless dynamic deflection is reduced about 17%. In addition, assuming CNTs agglomeration increases the dimensionless dynamic deflection about 14%. It is also found that with increasing the CNTs volume percent from 0 to 0.15, the static deflection is decreased about 3 times due to the enhance in the stiffness of the structure. In addition, with enhancing the nonlocal parameters, the dynamic deflection is increased about 3.1 times.

• 융합경영연구
• /
• 제12권1호
• /
• pp.65-75
• /
• 2024

Purpose: Through this study, first, we try to understand the characteristics of SNS beauty advertising using SNS. Second, focusing on S-O-R Theory, we aim to confirm the impact of SNS beauty advertising characteristics on positive emotions, commitment, and voluntary word-of-mouth intentions. Third, we intend to suggest measures related to effective SNS beauty advertising operation. Research design, data and methodology: To analyze the data collected of 308 questionnaires, the SPSS and AMOS statistical program was used, and the SNS beauty advertising characteristics were reclassified after analyzing the credibility and validity of the responses. Results: It was found that all SNS beauty advertising characteristics (interactivity, entertainment, credibility, and irritation) had a significant effect on positive emotions. However, entertainment and irritation did not have a significant effect on commitment. In addition, it was found that positive emotions had a positive effect on commitment, and commitment had a positive effect on voluntary word-of-mouth intentions, and positive emotions had no significant effect on voluntary word-of-mouth intentions. Conclusions: In order to improve consumers' commitment in SNS beauty advertising, it is important to secure trust through interaction, and it is judged that the more commit in SNS beauty advertising through positive emotions, the more spontaneous and positive word-of-mouth effect can be created.

• 한국전산구조공학회논문집
• /
• 제13권1호
• /
• pp.129-138
• /
• 2000

새로운 공학재료의 하나인 복합재료는 뛰어난 역학적 성질로 인해 공학 전 분야에 걸쳐 사용이 점진적으로 증가하고 있다. 이 복합재료에 대한 개발뿐만 아니라 정적 혹은 동적 하중을 받는 복합 구조물의 연구는 많이 수행되어 왔고 대부분 가해지는 하중은 확정적인 것으로 가정되었다. 그러나 실제 많은 상황에 있어 구조물에 가해지는 하중의 성질은 불규칙적이다. 본 연구에서는 불규칙 진동을 받는 복합적층판의 비선형 해석을 유한요소법에 의거하여 해석하였으며 고전 판 이론과 전단변형을 고려한 1차, 3차 이론을 비교 분석하였다. 많은 복합재료들은 전단 변형에 있어 재료적인 비선형을 나타내므로 이를 본 연구에 포함하였다.

• 대기
• /
• 제26권1호
• /
• pp.185-192
• /
• 2016

In this paper, I studied about historical seasonal subdivision system and a theory of traditional monthly order, which was used for so long from Koryo dynasty to the late of Choseon dynasty in Korean histoy. Especially, I took note of the fact that there used the table of solar terms and meteorological observation what we called the table of Kihoo-pyo in the historical Sunmyung-calendar and the Soosi-calendar during the Koryo dynasty. This table of Kihoo was developed for explaining meteorological change during a year at that time. Here are largely four elements related meteorological nature : the first is the list of 24 solar terms, and the second is 12 monthly seasonal terms and 12 monthly central terms, the third is about four right hexagon based I-ching, the fourth is 72 meteorological observations called 72-hoo. Among them, the 72-hoo system is important to know how premodern people observed natural materials including animals and plants, weather, climate about meteorological phenomena according to the seasonal change or solar terms' change during a year. I argued in this article to need developing modern new table of Kihoo system like that, in order to show common people to recognize annual meteorological change more easy and clear. I also argued to need a distinct definition of meteorological seasons from a view point of modern meteorology.

• 대한건축학회논문집:계획계
• /
• 제35권12호
• /
• pp.93-104
• /
• 2019

This study set out to analyze the architectural trends in Bell's works and spaces by applying the Gaze theory of Jacques Lacan to his minimalism works, concept changes in their changing process, and the development of exhibition spaces related to him. The findings were as follows: first, his early glass cube works sought after the reproduction of the Real Order through the repeating eyes of viewers and objects by using exhibition lighting; second, his works in the Standing Wall category pursued the reproduction of the Real Order through the repeating eyes of many different viewers around objects; third, his Nesting Boxes tried to reproduce the Real Order of a higher competition level in the perception aspects, making the repetitive elements of Standing Walls converge and including even external environmental elements; fourth, there is no decisive gaze sought after by Judd or the Key Signifiant as the core of Lacan's philosophy in Bell's formative works; and finally, Bell's works pursue the completion of Simulacrum through the infinite repetition of Derrida's Deconstruction Philosophy through the infinite visual repetition sought after by Gehry and Moss in the LA School of Architects who shared the same area and period with him.

• 한국통신학회논문지
• /
• 제30권11A호
• /
• pp.1104-1109
• /
• 2005

본 논문에서는 주파수 채배기 이론에 근거하여 단일 능동소자로 입력된 기본 LO 주파수($f_{LO}$)의 3차 고조파 성분($3f_{LO}$)의 진폭이 최대가 되는 바이어스 전압을 선택하여 두 입력신호($f_{RF}$, $f_{LO}$)에 대해서 고차 출력신호성분($f_{RF}{\pm}3f_{LO}$)이 최대가 되는 고조파 먹서(harmonic mixer)를 설계 및 제작하였다. 제안된 설계 방법에 의해서 제작된 고조파 먹서는 플라스틱(Plastic) 패키지의 MESFET 소자를 사용하여 기존 Ka-대역에서 동작하는 믹서 회로들이 나타내는 높은 부품 가격, 생산성 및 회로의 복잡도 문제를 해결할 수 있었으며 RF 주파수신호($f_{RF}$=33.5GHz)에 대해서 LO 주파수 신호($f_{LO}$=11.5 GHz)의 3차 고조파 신호($3f_{LO}$=34.5 GHz)가 최대가 되는 게이트 바이어스 전압을 선택하여 중간주파수($3f_{LO}-f_{RF}$=1.0GHz)에서 -10 dB의 낮은 변환 손실 특성을 나타내었다.

• 대한지리학회지
• /
• 제49권4호
• /
• pp.601-614
• /
• 2014

이 연구의 목적은 주요 지리 개념에 관한 고등학생들의 대표적 오개념을 조사하고 그 형성 메커니즘을 고찰하는 것이다. 연구자들은 오개념 형성 메커니즘을 틀(framework) 이론, p-prim(phenomenological primitive) 이론, 범주화(categorization) 이론으로 설명하는데 어떤 이론이 오개념 형성 메커니즘을 설명하기에 적절한지는 학문이나 개념의 성격에 따라 달라질 수 있다. 이에 본 연구에서는 지리 개념 세 가지(1차 2차 산맥, 부심과 위성도시, 푄 현상과 높새바람)를 선정하여 이와 관련된 학생들의 주요 오개념을 조사하고, 그것들의 형성 메커니즘을 설명하기 위해 어떤 이론을 적용하는 것이 적절한지를 논의하였다. 이 연구에서 발견한 주요 오개념은 다음과 같았다. 첫째, 학생들은 1차 2차 산맥에서 숫자 1, 2를 산맥의 형성순서로 이해하였다. 둘째, 부심과 위성도시의 경우, 주요 기능의 차이에도 불구하고 학생들은 두 가지를 하나의 범주로 묶어 동일한 기능을 수행하고 유사한 영향을 미친다고 이해하는 경우가 많았다. 셋째, 학생들은 높새바람과 푄 현상을 동일한 위계에 속한다고 이해하였다. 나아가 본 연구에서는 학생들이 각 개념을 올바른 온톨로지 트리에 위치시키지 못하는 범주화 오류의 관점에서 이들 지리 오개념 형성 메커니즘을 설명하였다.

• Steel and Composite Structures
• /
• 제25권3호
• /
• pp.337-346
• /
• 2017

Sandwich shells made of composite materials are the main focus on recent literature parallel to the requirements of industry. They are commonly chosen for the modern engineering applications which require moderate strength to weight ratio without dependence on conventional manufacturing techniques. The investigations on hyperbolic paraboloidal formed sandwich composite shells are limited in the literature contrary to shells that have a number of studies, consisting of doubly curved surfaces, arbitrary boundaries and laminations. Because of the lack of contributive data in the literature, the aim of this study is to present the effects of curvature on hyperbolic paraboloidal formed, layered sandwich composite surfaces that have arbitrary boundary conditions. Analytical solution methodology for the analyses of stresses and deformations is based on Third Order Shear Deformation Theory (TSDT). Double Fourier series, which are specialized for boundary discontinuity, are used to solve highly coupled linear partial differential equations. Numerical solutions showing the effects of shell geometry are presented to provide benchmark results.

• 지식경영연구
• /
• 제7권1호
• /
• pp.81-96
• /
• 2006

The purpose of this study is to survey what strategy BACHE, a bathtub manufacturing company, chooses to implement knowledge management. Generally speaking, the success factors of this case company is follow-up management. The first factor is to use linguistic metaphors for employees to understand difficult knowledge management terms easily. The second one is that CEO tries to set and lead pro-knowledge management corporate culture. The third one is based on the CKO's competence to read business circumstances and apply the theory of knowledge management to the workplace. The fourth one has something to do with a way of knowledge creation, for example, a suggestion system and QC circle. The fifth one depends upon CKO's mission to share knowledge invented from his own company's with the rivals and large companies which order bathtubs so that overall bathtub industry can upgrade knowledge management.