• 한국조경학회:학술대회논문집
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• 한국조경학회 2007년도 Journal of Landscape Architecture in Asia Vol.3
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• pp.135-140
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• 2007

Landscape Architecture is the everlasting theme while the architecture is the concretionary symbol. In other words, greening system is the only living infrastructure in city. Sour of a city regional cultural connotation is decided by the city owners and presented as the exterior style and features by architecture, road, and context and landscape etc. This passage will discuss the outward manifestation and interior relationship, trend of development of Shanghai Style landscape and culture. In addition, trying to discern the progress trend of landscape in big city is also what will be talk about.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2010년도 춘계학술대회 초록집
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• pp.191.2-191.2
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• 2010

The conventional method to assess turbine performance is its model testing which becomes costly and time consuming for several design alternatives in design optimization. Computational fluid dynamics (CFD) has become a cost effective tool for predicting detailed flow information in turbine space to enable the selection of best design. In the present paper, Francis turbine of commercial small hydropower plants which is under 70kw is investigated. Solutions are investigated with respect to the hydraulic characteristics against an outward angle of guide vane, the number of guide vane and head (inlet velocity). By suitable modification of the runner shape, low pressure zone on the leading edge can be reduced. If the entire runner is to be optimized in this manner, flow simulation tests have to be carried out on a series of different geometrical shape.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2007년도 춘계학술대회A
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• pp.1416-1421
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• 2007

In this paper, a novel MR brake with permanent magnet is developed. This system consists of rotary disk, permanent magnet, spring and MR fluid. Permanent magnets are attached to the rotary disk and moves in the direction of radius. The magnets are linked to rotor axis by spring. As rotation speed increases, the magnets move outward from the center of the system by centrifugal force in the MR fluid. A proper design of stator or case makes the system have unique torque characteristics. To show the performance of the system, the research is performed by following procedure. First, the electromagnetic characteristic of the system is analyzed using FEM and commercial code, Maxwell is used for this analysis. Then, torque is calculated using the result of the electromagnetic analysis to validate the performance of the system.

• 한국CDE학회논문집
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• 제17권4호
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• pp.262-273
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• 2012

We present a novel GPU algorithm to compute outer cell boundaries of 3D arrangement subdivided by a given set of triangles. An outer cell boundary is defined as a 2-manifold surface consisting of subdivided polygons facing outward. Many geometric problems, such as Minkowski sum, sweep volume, lower/upper envelop, Bool operations, can be reduced to finding outer cell boundaries with specific properties. Computing outer cell boundaries, however, is a very time-consuming job and also is susceptible to numerical errors. To address these problems, we develop an algorithm based on GPU with a robust scheme combining interval arithmetic and multi-level precisions. The proposed algorithm is tested on Minkowski sum of several polygonal models, and shows 5-20 times speedup over an existing algorithm running on CPU.

• 국제초고층학회논문집
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• 제1권1호
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• pp.61-72
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• 2012

When Cole Porter wrote the song "Anything Goes" in 1934, he did not include skyscraper examples. The recently completed Chrysler and Empire State buildings followed decades of tall building development in a logical and predictable line. Today, dramatic improvements in materials and methods of analysis, design and fabrication have given architects and engineers freedom to imagine, and contractors to build, towers in configurations never seen before. If writing now, Porter would surely have mentioned such designs to demonstrate anything goes. Or does it? This article explores the possibilities and challenges of tall building structural design through current and proposed projects. Examples include engineering buildings with outward forms that appear structurally unfavorable and taking advantage of load reduction through shaping opportunities.

• 한국생산제조학회지
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• 제7권4호
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• pp.64-72
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• 1998

This paper a new approach to the design of machine vision technique with a camera modeling that accounts for major sources of geometric distortion, namely, radial, decentering, and thin prism distortion. Radial distortion causes an inward or outward displacement of a given image point from its ideal location. Actual optical systems are subject to various degrees of decentering , that is , the optical centers of lens design and manufacturing as well as camera assembly. It is our propose to develop the vision system for the pattern recognition and the automatic test of parts and to apply the line of manufacturing. The performance of proposed vision system is illustrated by simulation and experiment.

• Tribology and Lubricants
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• 제18권5호
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• pp.364-370
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• 2002

In this paper, numerical analyses were undertaken to calculate the static and dynamic performances of step-pocket, inward pumping spiral grooved, outward pumping spiral grooved and herringbone grooved bearings. For each bearing, optimal values for various design parameters were obtained to maximize the load capacity and the stiffness and bearing performances were calculated. The optimized performances of these bearings were compared to conclude that the performance of step-pocket bearing is better than the other bearings.

• 한국실내디자인학회논문집
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• 제13권5호
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• pp.215-222
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• 2004

Buildings' outward appearances, sidewalks, and street lights have long been regarded as important factors identifying the street landscape of a city. On the other hand, the interior spaces of a building have been known to have less correlation with street landscape. This paper, which did not use standardized urban street landscape application methods, attempts, based on an experiment involving Pimatgol, to prove that small changes in interior design influence the street landscapes of cities and even provide new vigorousness. Pimatgol is a type of village that still possesses a traditional Korean lyrical atmosphere. This paper also attempts to, with the use of a physical model and a digital simulation of small changes interior design, such as changes in materials, size of the opening, location of furniture, or a change of lights, uncover positive changes in street landscape. Computer simulation is one of the extraordinarily useful techniques to predict lighting performance, changing interior space and present visual image. As a result, this study can be a valuable guideline for the future streetscape reform project to lead the demanding effects of the interior space.

• 방송공학회논문지
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• 제25권2호
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• pp.265-274
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• 2020

자유 시점 비디오 서비스는 사용자와의 상호작용을 통해 원하는 임의의 각도나 위치, 거리에서 시청할 수 있게 하는 기술이다. 본 논문에서는 사용자가 선택하여 시청할 수 있는 자유 시점 비디오 서비스를 Inward view, Outward view, 3D object view, First person view의 네 가지 시청 모드로 정의하였으며 하나의 플레이어에서 시청이 가능한 새로운 통합 프로그램을 개발 및 구현하였다. 아이돌 공연과 농구 경기 콘텐츠에 대해 각 시청 모드에 적합한 다시점 카메라를 설치하여 데이터를 확보하였으며, 서버에 저장된 데이터가 네트워크를 통해 스트리밍 됨으로써 시청이 가능하도록 하였다. 사용자는 자유롭게 네 가지의 시청 모드와 공간상의 위치, 각도 등을 선택할 수 있으며, 선택된 시점에 맞는 영상과 음향이 렌더링 되어 통합 플레이어에 표출된다. 이는 기존의 자유 시점 비디오 서비스를 포함한 다양한 시청 형태를 결합함으로써 사용자에게 몰입감과 현장감을 제공할 수 있을 뿐만 아니라 확장성이 있는 자유 시점 비디오 서비스 플레이어가 될 것으로 기대된다.

• 한국보육지원학회지
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• 제8권5호
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• pp.89-110
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• 2012

본 연구는 앞으로 더욱 발달되어 유아교육 현장에 보급될 교사보조 인간형 로봇의 개발에 도움이 되는 기초자료를 제공하기 위하여, 유아들이 선호하는 로봇의 전체, 얼굴, 몸통, 다리 등의 모습과 활용을 위한 모습 등을 분석하는 것을 목적으로 하고 있다. 이를 위해 만4세 유아 180명을 대상으로 하였으며, 이 중 남아는 95명이고 여아는 85명이다. 본 연구의 주요 결과는 다음과 같다. 첫째, 유아들은 곡선을 위주로 직선이 다소 가미된 그리고 부드러운 느낌을 주는 로봇을 선호하고 자기와 비슷한 크기의 로봇을 선호한다. 둘째, 유아들은 사람과 유사하게 가슴, 허리, 엉덩이가 구분되는 몸통을 선호한다. 셋째, 유아들은 두 다리나 탱크 바퀴 형태의 다리를 선호한다. 그러나 남아는 탱크 바퀴를 더 선호하고, 여아는 두 다리를 더 선호하고 있다. 넷째, 유아들은 실제적 얼굴 모습보다 보통 또는 좀 큰 로봇다운 눈을 가진 얼굴을 선호한다. 다섯째, 유아들은 놀이와 관련된 로봇을 가장 선호하고 또 스스로 조작할 수 있는 로봇을 선호하고 있다.