• Journal of Environmental Science International
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• v.19 no.9
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• pp.1169-1175
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• 2010

A case study for the design of a wind farm in complex terrain was carried out using the wind farm site analysis software OpenWind, which has an open-source platform and is free to use. The Youngdeok Wind Farm, constructed on mountainous terrain in Korea, was chosen as a model site; the design process reproduced using OpenWind. A comparison of the positions of the wind turbine derived from the OpenWind optimization process and the current positions were in good agreement. The annual energy production predicted by OpenWind compared with the prediction by the micrositing software, WindSim, were also validated to within 1%. Therefore, it was confirmed that OpenWind can be used for a practical wind farm design project. It is also anticipating that this paper will provide a prototype process for the design of a wind farm site and offer a database for the post-evaluation of a constructed wind farm in Korea.

• Journal of the Korean Society of Physical Medicine
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• v.5 no.2
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• pp.143-150
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• 2010

Purpose : In this study, by recognizes the legal constraints of a independent physical therapy clinic open, the other countries's law on physical therapist and the expected effect of independent clinic open, we suggest the need for independent clinic open in South Korea. Methods : To recognize the necessity and expected effect of independent physical therapy clinic open, by comparing the system and situation in South Korea with the countries joined in The World Confederation for Physical Therapy. Results : Effects of the independent physical therapy clinic open were following; 1. it could be guaranteed the option of the medical consumer 2. reduce the economic and time burden 3. provide a good quality medical service Conclusion : Independent physical therapy clinic open will provide a better therapeutic environment for consumer and contribute much to improving the benefit of welfare part of the nation. For provide a good quality to medical consumer, independent physical therapy clinic open and the amendment of related law and institutional device are positively necessary.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.16 no.5
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• pp.1755-1777
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• 2022

The development of wireless communication technology has led to the underutilization of radio spectra. To address this limitation, an intelligent cognitive radio network was developed. Specific emitter identification (SEI) is a key technology in this network. However, in realistic non-cooperative scenarios, the system may detect signal classes beyond those in the training database, and only a few labeled signal samples are available for network training, both of which deteriorate identification performance. To overcome these challenges, a meta-learning-based open-set identification system is proposed for SEI. First, the received signals were pre-processed using bi-spectral analysis and a Radon transform to obtain signal representation vectors, which were then fed into an open-set SEI network. This network consisted of a deep feature extractor and an intrinsic feature memorizer that can detect signals of unknown classes and classify signals of different known classes. The training loss functions and the procedures of the open-set SEI network were then designed for parameter optimization. Considering the few-shot problems of open-set SEI, meta-training loss functions and meta-training procedures that require only a few labeled signal samples were further developed for open-set SEI network training. The experimental results demonstrate that this approach outperforms other state-of-the-art SEI methods in open-set scenarios. In addition, excellent open-set SEI performance was achieved using at least 50 training signal samples, and effective operation in low signal-to-noise ratio (SNR) environments was demonstrated.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2014.11a
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• pp.72-73
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• 2014

최근 통신 분야에서는 새로운 수익을 창출하기 위해 다양한 융합 서비스 개발이 이루어지고 있다. 이와 같은 융합서비스 개발은 통신 망이 갖고 있는 다양한 기능을 API 형태로 개방한 Open API 기술을 기반으로 이루어지고 있으며, API의 특징상 통신망의 프로토콜을 모르더라도 인터넷을 기반으로 다양한 융합 서비스를 쉽고 빠르게 제작할 수 있다. 최근에는 통신 뿐만 아니라, 통신과 방송이 융합된 서비스 개발을 위해 통신 분야의 Open API와, 방송 분야의 Open API를 융합하는 추세를 보이고 있다. 하지만, 국내에서는 이러한 Open API를 체계적으로 지원 해주는 플랫폼이 존재 하지 않기 때문에, 개발자들이 손쉽게 Open API를 사용하기 힘든 실정이다. 따라서 본 논문에서는 방송통신 융합서비스 플랫폼을 구축하기 위한 사전 연구로써, 현재 제공되고 있는 Open API들의 정보들을 공통적으로 정의하기 위해 메타데이터를 이용하여 정의하는 방법을 연구하였다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.5
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• pp.2353-2359
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• 2012

Today, the use of the open source software is rapidly increasing. But, it is also true that the quality aspect of the open source software is not being considered seriously enough. As we see, the future prospect of the open source software seems to demand the development of a set of quality assessment technology for the open source software due to the current status of quality problems and sustained growth in its usage. Therefore, in this study a set of open source assessment models are analyzed to establish evaluation criteria, with which the open source software are to be evaluated.

• Journal of the Korea Convergence Society
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• v.7 no.4
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• pp.173-180
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• 2016

OpenCV is a programming language used in digital image processing and computer vision. In this study, look at media arts made using OpenCV programming language and find out about the utilization possibilities. To this end, the first, look at OpenCV functions that are frequently used in media art, the examples of utilizing the functions. The second, discuss media arts using OpenCV. focused on the OpenCV functions, programming language for an production of media art. The third, analyze features of media arts using OpenCV, mainly focused on the functions and programming languages. The study may provide guidance to the artists to produce a media art using the OpenCV or programming language.

• The korean journal of orthodontics
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• v.4 no.1
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• pp.49-55
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• 1974

The author studied the open-bite of 16 males and 25 females aged 20-23 using profile cephalometric roentgenogram and compared with normal occlusion to determine the morphological pattern of open-bite. The following results are obtained. 1) Open-bite patients showed remarkable vertical development of jaws than normal occlusion. 2) Females indicated conspicuous characteristics than males in open-bite. 3) Anterior teeth disclosed low positions in open-bite patients. 4) Mandible revealed obvious morphological features than maxilla in open-bite patients.

• Communications of the Korean Mathematical Society
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• v.25 no.4
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• pp.623-628
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• 2010

Nakaoka and Oda ([1] and [2]) introduced the notion of maximal open sets and minimal closed sets in topological spaces. In this paper, we introduce new classes of sets called maximal $\theta$-open sets, minimal $\theta$-closed sets, $\theta$-semi maximal open and $\theta$-semi minimal closed and investigate some of their fundamental properties.

• Journal of Applied and Pure Mathematics
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• v.5 no.1_2
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• pp.121-128
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• 2023

The aim of this article is to extend hesitant fuzzy minimal open and hesitant fuzzy maximal open sets in hesitant fuzzy topological space. Further, we investigate some properties with these new sets.

• International Journal of Computer Science & Network Security
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• v.21 no.11
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• pp.97-104
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• 2021

The authors provide characteristics of the open educational platforms, classification and quantitative analysis regarding the availability of IT courses, teaching language, thematic directions on the following platforms: Coursera, EdX, Udemy, MIT Open Course Ware, OpenLearn, Intuit, Prometheus, UoPeople, Open Learning Initiative, Open University of Maidan (OUM). The quantitative analysis results are structured and visualized by tables and diagrams. The authors propose to use open educational resources (teaching, learning or research materials that are in the public domain or released with an intellectual property license that allows free use, adaptation, and distribution) for organization of independent work; for organization of distance or correspondence training; for professional development of teachers; for possibility and expediency of author's methods dissemination in the development of their own courses and promoting them on open platforms. Post-project activities are considered in comparing the courses content of one thematic direction, as well as studying the experience of their attending on different platforms.