• Molecules and Cells
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• v.39 no.3
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• pp.179-185
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• 2016

Posttranscriptional regulation of RNA metabolism, including RNA processing, intron splicing, editing, RNA export, and decay, is increasingly regarded as an essential step for fine-tuning the regulation of gene expression in eukaryotes. RNA-binding proteins (RBPs) are central regulatory factors controlling posttranscriptional RNA metabolism during plant growth, development, and stress responses. Although functional roles of diverse RBPs in living organisms have been determined during the last decades, our understanding of the functional roles of RBPs in plants is lagging far behind our understanding of those in other organisms, including animals, bacteria, and viruses. However, recent functional analysis of multiple RBP family members involved in plant RNA metabolism and elucidation of the mechanistic roles of RBPs shed light on the cellular roles of diverse RBPs in growth, development, and stress responses of plants. In this review, we will discuss recent studies demonstrating the emerging roles of multiple RBP family members that play essential roles in RNA metabolism during plant growth, development, and stress responses.

• Magazine of the Korean Society of Agricultural Engineers
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• v.39 no.1
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• pp.41-47
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• 1997

A geographical resource analysis support system (GRASS) was incorporated to an input and output processor for the agricultural nonpoint source pollution (AGNPS) model. The resulting interface system, GIS-AGNPS was a user-friendly, menu-driven system. GIS-AGNPS was developed to automatically process the input and output data from GIS-based data using GRASS and Motif routines. GIS-AGNPS was consisted of GISAGIN which was an input processor for the AGNPS model, GISAGOUT a output processor for the AGNPS and management submodel. The system defines an input data set for AGNPS from attributes of basic and thematic maps. It also provides with editing modes so that users can adjust and detail the values for selected input parameters, if needed. The post-processor at the system displays graphically the outputs from AGNPS, which may he used to identify areas significantly contributing nonpoint source pollution loads.

• Proceedings of the Korean Information Science Society Conference
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• 2004.04a
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• pp.820-822
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• 2004

MPEG-4 디지털 콘텐츠는 통신, 컴퓨터, 방송, 모바일 등의 다양한 분야에서 멀티이디어 데이터를 처리하기 위한 표준으로 자리 잡고 있다. 하지만 저작권 보호 및 관리 시스템의 부재로 기업간 저작권 시스템의 문제와 관심이 대두되어 ISO/IEC의 산하기관인 MPEG에서는 MPEG-4 시스템 표준에 부합되는 IPMP(Intellectual Property Management and Protection) 시스템 인터페이스를 표준으로 제정하여 저작권을 보호하고 관리하는 공동 방법을 제공하였다. 이에 본 논문에서는 기존 MPEG-4 저작도구에 기반하여 MPEG-4 IPMP 시스템을 플러그인처럼 추가할 수 있는 확장 시스템 구현을 목적으로 두고 있다. 설계 부분은 IPMP 정보 저장부, IPMP 정보 변환부, 멀티미디어 처리부, XMT-A to MP4 컨버터, IPMP 정보 처리부로 구성하였고. 저작자가 IPMP 정보를 효율적으로 입력, 수정하고 시스템에서 처리되도록 구현하여 표준에 따라 보호 및 관리 신호를 갖는 MPEG-4 디지털 콘텐츠를 저작하였다.

• Geophysics and Geophysical Exploration
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• v.5 no.1
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• pp.1-5
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• 2002

We developed a modeling and visualization software that can analyze 3-dimensional spatial information in the ArcView environment. The software constructs and visualizes an object in 3 dimensional space from the input data given a number of horizontal cross-sections. The software can generate and visualize the cross-sections of the object in any azimuth and inclination. Utilizing the program users can modify the 3-D shape of the object by interactively editing the cross-sections.

• Electronics and Telecommunications Trends
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• v.31 no.1
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• pp.134-145
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• 2016

최근 3D 프린팅이 제조업의 혁신을 이끌 새로운 키워드로 주목을 받으면서 하드웨어인 3D 프린터를 비롯해 각종 프린팅 재료, 프린팅 대상을 만들 수 있는 3D 저작 및 편집 소프트웨어에 이르기까지 관련 분야에 대한 관심과 지원이 빠르게 확산되는 추세다. 특히, 개인의 아이디어를 3D 프린터로 직접 출력할 수 있다는 점이 강조되면서 개인용 3D 콘텐츠 제작을 위해 필요한 저작/편집도구의 수요가 급격히 증가하고 있다. 더불어 3D 프린팅 출력 대상이 개인화되고 사용자의 기호에 따른 맞춤형으로 변하면서, 3D 콘텐츠 제작에 필수적인 소프트웨어 개발 업체의 영향력이 하드웨어 제조사보다 더욱 커지고 있다. 3D 프린팅 관련 세계적 기술 및 수요 변화에 발맞춰 본고에서는 3D 프린팅용 콘텐츠를 제작할 수 있는 3D 저작/편집도구 및 연구동향을 살펴보고, 다양한 응용을 목적으로 ETRI에서 개발 중인 3D 프린팅용 편집기술을 소개하고자 한다.

• Proceedings of the IEEK Conference
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• 2002.06d
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• pp.77-80
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• 2002

In this paper, We have studied for guaranteeing the clear display of MPEG-2 video sequence when conduct splicing of MPEG-2 system streams. we focus on the PES domain splicing considering video sequence. And we wish to make a base on the TS or PS domain splicing considering video sequence. For that, first, we compared and analyzed problems that is raised when different two PES streams are spliced and effects that affect the video sequence. And based on this analysis, we have searched for methods that resolve the cause of problems that can be happened in the display of video sequence directly in PES domain.

• Korean Journal of Computational Design and Engineering
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• v.3 no.3
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• pp.154-160
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• 1998

In this study, we implement the prototype modeler with non-manifold data structure using Open Inventor. In these days, Open Inventor is a popular tool for computer graphics applications, even though Open Inventor could not store topological information including a non-manifold data structure which can represent an incomplete three dimensional shape such as a wireframe and a dangling surface during designing. Using Open Inventor, our modeler can handle a non-manifold model whose data structure is based on the radial edge data structure. A model editor is also implemented as an application which can construct a non-manifold model from two dimensional editing.

• Korean Journal of Computational Design and Engineering
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• v.7 no.4
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• pp.269-279
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• 2002

Geometric shape morphing is an interesting geometric operation that interpolates two geometric shapes to generate in-betweens. It is well known that Minkowski operations can be used to test and build collision-free motion paths and to modify shapes in digital image processing. In this paper, we present a new geometric modeling technique to control the morphing on geometric shapes based on Minkowski sum. The basic idea develops from the linear interpolation on two geometric shapes where the traditional algebraic sum is replaced by Minkowski sum. We extend this scheme into a Bezier-like control structure with multiple control shapes, which enables the interactive control over the intermediate shapes during the morphing sequence as in the traditional CAGD curve/surface editing. Moreover, we apply the theory of blossoming to our control structure, whereby our control structure becomes even more flexible and general. In this paper, we present mathematical models of control structure, their properties, and computational issues with examples.

• Journal of Korea Game Society
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• v.17 no.4
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• pp.17-24
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• 2017

This paper describes the general process of making augmented reality game for real objects without markers. In this paper, point cloud data created by using slam technology is edited using a separate editing tool to optimize performance in mobile environment. Also, in the game execution stage, a lot of load is generated due to the extraction of feature points and the matching of descriptors. In order to reduce this, optical flow is used to track the matched feature points in the previous input image.

• Industrial Engineering and Management Systems
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• v.9 no.1
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• pp.20-27
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• 2010

The purpose of this study was to compare the consistency of external ear measurements obtained by electronic digital caliper, photocopier scanning and digital photographic methods. Photogrammetric measurements were made after image editing software was used to optimize the brightness, contrast, size and image clarity. The CorelDRAW dimension tool was used to create a dimension line that measured the vertical and horizontal length between any two landmarks. Results of repeated measures analysis of variance revealed no significant differences in length and width of the pinna between the three methods. The reliability of the three measurement techniques showed a high degree of consistency. Further study and efforts could be extended to measurement hands, foots and facial dimensions by present techniques.