• Korean Journal of Remote Sensing
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• v.18 no.5
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• pp.263-271
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• 2002

Recently, spatial information technologies using remotely sensed imagery and functionality of GIS (Geographic Information Systems) have been widely utilized to various types of transportation-related applications. In this study, extraction programs of some practical indices, to be effectively used in transportation reference planning problem, were designed and implemented as prototyped extensions in GIS development environment: traffic flow estimation (TFL/TFB), urban rural index (URI), and accessibility index (AI). In TFL/TFB, user can obtain quantitative results on traffic flow estimation at link/block using high-resolution satellite imagery. Whereas, URI extension provides urban-rural characteristics related to road system, being considered one of important factors in transportation planning. Lastly, AI extension helps to obtain accessibility index between nodes of road segments and surrounding district areas touched or intersected with the road network system, and it also provides useful information for transportation planning problems. This approach is regarded as one of RS-T (Remote Sensing in Transportation), and it is expected to expand as new application of remotely sensed imagery.

• Bulletin of the Korean Chemical Society
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• v.22 no.5
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• pp.455-462
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• 2001

The time-dependent tracking inversion method is studied to extract the potential energy surface of the electronic excited state in the photodissociation of triatomic molecules. Based on the relay of the regularized inversion procedure and time-dependent wave packet propagation, the algorithm extracts the underlying potential energy surface piece by piece by tracking the time-dependent data, which can be synthesized from Raman excitation profiles. We have demonstrated the algorithm to extract the potential energy surface of electronic excited state for NO2 molecule where the wave packet split on a saddle-shaped surface. Finally, we describe the merits of the time-dependent tracking inversion method compared with the time-independent inversion method and discussed several extensions of the algorithm.

• Annual Conference of KIPS
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• 2012.04a
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• pp.336-339
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• 2012

VTK is a free but professional development platform for images three-dimensional (3D) reconstruction and processing. It is powerful, open-source, and users can customize their own needs by self-development of great flexibility. To give the doctors more and detailed information by simulate dissection to the 3-D brain MRI image after reconstruction. A Visualization System (VS) is proposed to achieve 3D brain reconstruction and virtual dissection functions. Based on the free VTK visualization development platform and Visual Studio 2010 IDE development tools, through C++ language, using real people's MRI brain dataset, we realized the images 3D reconstruction and also its applications and extensions correspondingly. The display effect of the reconstructed 3D image is well and intuitive. With the related operations such as measurement, virtual dissection and so on, the good results we desired could be achieved.

• Cross-Cultural Studies
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• v.24
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• pp.99-111
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• 2011

This paper is a comparative study of English loans in Russian and Swahili. In the twenty first century, due to the advantage of English as a global language, a language of technology and business, it has had contact with many languages of the world and has become a major source of loans to many languages. Though very different from each other, both Russian and Swahili currently have English as their main source of loanwords. This study reports the extensive adaptation of English loans by Russian and Swahili and examines how these loan items are assimilated into the two languages. It concludes that besides the adaption of pure English loans they have both employed other strategies such as loan translations, semantic extensions and loanblends for vocabulary expansion.

• Journal of information and communication convergence engineering
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• v.17 no.2
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• pp.105-116
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• 2019

Recently, there has been an increase in research on wireless sensor networks (WSNs) because they are easy to deploy in applications such as internet-of-things (IoT) and body area networks. However, WSNs have constraints in terms of power, quality-of-service (QoS), computation, and others. To overcome the power constraint issues, wireless energy harvesting has been introduced into WSNs, the application of which has been the focus of many studies. Additionally, to improve system performance in terms of achievable rate, cooperative networks are also being explored in WSNs. We present a review on current research in the area of energy harvesting in WSNs, specifically on the application of simultaneous wireless information and power transfer (SWIPT) in a cooperative sensor network. In addition, we discuss possible future extensions of SWIPT and cooperative networks in WSNs.

• East Asian mathematical journal
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• v.35 no.1
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• pp.23-30
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• 2019

Since Mittag-Leffler introduced the so-called Mittag-Leffler function, a number of its extensions have been investigated due mainly to their applications in a variety of research subjects. Shukla and Prajapati presented a lot of formulas involving a generalized Mittag-Leffler function in a systematic manner. Motivated mainly by Shukla and Prajapati's work, we aim to investigate a generalized multi-index Mittag-Leffler function and, among possible numerous formulas, choose to present several formulas involving this generalized multi-index Mittag-Leffler function such as a recurrence formula, derivative formula, three integral transformation formulas. The results presented here, being general, are pointed out to reduce to yield relatively simple formulas including known ones.

• Proceedings of the Korean Society of Computer Information Conference
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• 2019.07a
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• pp.325-326
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• 2019

본 논문은 퍼스널 컴퓨팅 환경의 성능 향상을 위한 인피니밴드 네트워크 기반 인메모리 스토리지 시스템의 구조를 제안한다. 성능평가를 위해 100Gbit/s을 지원하는 MCX455A-ECAT 한 쌍을 MCP1600-E02A 케이블로 직결한 x86-64 architecture의 인피니밴드 네트워크를 구성하고 Target 시스템에 iSCSI Extensions for RDMA(iSER)을 적용한 RAM disk를 생성하였다. CentOS virt-manager에서 생성한 Initiator 시스템의 Windows 가상 머신에는 Target 시스템의 RAM disk를 VirtIO 방식으로 연결한다. 이 구조는 시스템 종료 후 초기화되는 종래 RAM disk의 일반적 특성을 개선한다. 마지막으로 스토리지 성능평가를 통해 향후 출시될 PCI Express 4.0 이상의 시스템과 퍼스널 컴퓨팅 스토리지 성능 향상 측면에서 해당 구조의 적합성을 보인다.

• Annual Conference of KIPS
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• 2004.05a
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• pp.1537-1540
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• 2004

이동 Ad-hoc 네트워크는 기존의 인프라스트럭쳐 네트워크가 없이 이동 노드들이 자율적으로 다수의 홉을 통해 통신하는 네트워크다. 이동 Ad-hoc 네트워크의 이동 노드는 스스로 호스트나 라우터가 되며 능동적인 연결 설정이 가능하고 네트워크의 참여 또는 이탈이 자유롭고 베터리로 운영되어 에너지원의 공급이 제한되고 무선 망 특성에 따른 잦은 환경 변화에 의해 네트워크의 토폴로지가 자주 변하는 특성을 가진다. 이러한 Ad-hoc 네트워크의 특성 때문에 기존의 고정적인 유선 망 관리에 비해 Ad-hoc 네트워크에서의 망 관리는 더 힘들고 어려운 연구분야다. 특히, 기존의 중앙 집중식 망 관리와 같은 구조는 Ad-hoc 네트워크의 특성에 적합하지 않다. 이 논문에서는 Ad-hoc 네트워크의 특성에 맞는 자동적이고 적응력 있는 지적 망 관리 구조를 제시한다. 제시한 관리 구조는 JMX(Java Management Extensions)와 Mobile Agent 프레임웍을 이용한 분산 망 관리 구조이다.

• Bulletin of the Korean Mathematical Society
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• v.56 no.3
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• pp.745-756
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• 2019

We obtain Lipschitz type characterization and double integral characterization for Fock-type spaces with the norm $${\parallel}f{\parallel}^p_{F^p_{m,{\alpha},t}}\;=\;{\displaystyle\smashmargin{2}{\int\nolimits_{{\mathbb{C}}^n}}\;{\left|{f(z){e^{-{\alpha}}{\mid}z{\mid}^m}}\right|^p}\;{\frac{dV(z)}{(1+{\mid}z{\mid})^t}}$$, where ${\alpha}>0$, $t{\in}{\mathbb{R}}$, and $m{\in}\mathbb{N}$. The results of this paper are the extensions of the classical weighted Fock space $F^p_{2,{\alpha},t}$.

• Kyungpook Mathematical Journal
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• v.61 no.3
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• pp.487-494
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• 2021

In this paper, we study rings with Noetherian spectrum, rings with locally Noetherian spectrum and rings with t-locally Noetherian spectrum in terms of the polynomial ring, the Serre's conjecture ring, the Nagata ring and the t-Nagata ring. In fact, we show that a commutative ring R with identity has Noetherian spectrum if and only if the Serre's conjecture ring R[X]_U has Noetherian spectrum, if and only if the Nagata ring R[X]_N has Noetherian spectrum. We also prove that an integral domain D has locally Noetherian spectrum if and only if the Nagata ring D[X]_N has locally Noetherian spectrum. Finally, we show that an integral domain D has t-locally Noetherian spectrum if and only if the polynomial ring D[X] has t-locally Noetherian spectrum, if and only if the t-Nagata ring $D[X]_{N_v}$ has (t-)locally Noetherian spectrum.