A5102945343- Advanced Data Storage Technologies
- Distributed and Parallel Computing Systems
- Scientific Computing and Data Management
- IPv6, Mobility, Handover, Networks, Security
- Particle physics theoretical and experimental studies
- Energy Efficient Wireless Sensor Networks
- Caching and Content Delivery
- Software Testing and Debugging Techniques
- Mobile Ad Hoc Networks
- Wireless Communication Networks Research
- Multimedia Communication and Technology
- Advanced Wireless Network Optimization
- Software Engineering Research
- Internet of Things and Social Network Interactions
- Technology and Data Analysis
- Complex Network Analysis Techniques
- Mobile Agent-Based Network Management
- Advanced Software Engineering Methodologies
- Recommender Systems and Techniques
- Algorithms and Data Compression
- Web Applications and Data Management
- Industrial Automation and Control Systems
- Autonomous Vehicle Technology and Safety
- Smart Grid Security and Resilience
- Authorship Attribution and Profiling
Hongik University
2002-2016
University of Edinburgh
2003-2005
Columbia University
2003
University of Maryland, College Park
1990
The GridPP Collaboration is building a UK computing Grid for particle physics, as part of the international effort towards Large Hadron Collider. project, funded by Particle Physics and Astronomy Research Council (PPARC), began in September 2001 completed its first phase 3 years later. collaboration approximately 100 researchers 19 university physics groups, Central Laboratory Councils CERN, reflecting strategic importance project. In with other European US efforts, project demonstrated...
The QCDSP and QCDOC computers are two generations of multithousand-node multidimensional mesh-based designed to study quantum chromodynamics (QCD), the theory strong nuclear force. (QCD on digital signal processors), a four-dimensional mesh machine, was completed in 1998; that year, it won Gordon Bell Prize price/performance category. Two large installations—of 8,192 12,288 nodes, with combined peak speed one teraflops—have been operation since. QCD-on-a-chip (QCDOC) utilizes six-dimensional...
Applications supporting various multimedia data in wireless sensor networks (WMSNs) have specific QoS requirements on bandwidth, delay, and/or packet loss. Perception of applications' and detection link states are indispensable for the design QoS-aware routing mechanism. Software defined networking (SDN) is suitable purpose since it provides visibility network resources programmable interfaces. OpenFlow most recognized realization SDN. We propose a mechanism OpenFlow-enabled WMSNs. The...
For a wireless sensor network (WSN) with large number of inexpensive nodes, energy efficiency is the major concern in designing structure and related algorithms. If collects data using mobile sinks, object tracking mechanism must consider nodes networks as whole. Recently research works on WSNs sinks apply prediction techniques for sink order to improve precision while keeping active minimum. In this paper, we analyze existing WSN propose P-LEACH that cluster-based technique sinks....
While the discovery of non-zero neutrino masses is one most important accomplishments by physicists in past century, it still unknown how and what form these arise. Lepton number-violating neutrinoless double beta decay a natural consequence Majorana neutrinos many BSM theories, experimental efforts are involved search for processes. Understanding would manifest nuclear environments key understanding any observed signals. In proceedings we present an overview set one- two-body matrix...
After a brief overview of quantum chromodynamics (QCD), the fundamental theory strong interactions, we describe QCDOC computer, its architecture, construction, software and performance. Three 12K-node, 4 Teraflops (sustained) computers have been constructed, two at Brookhaven National Lab one University Edinburgh. The present status these machines their first physics results objectives are discussed catalytic role SciDAC program in enabling effective use this new architecture by US lattice...
Cell-phones functions have advanced so rapidly and they are now called `smart-phones.` Typical approach to optimization the performance of a smartphone is increasing speed device acquiring more free memory. In this paper, we propose relatively simple techniques that average users can apply their devices optimize performance. For upgrade, proposed an over-clocking technique usually used by computer manufacturers. memory optimization, deleting unnecessary apps replacing with better-functioning...
증강현실은 가상현실의 한 분야로 실제 환경에 가상 사물을 합성해 원래의 존재하는 사물처럼 보이 도록 하는 컴퓨터 그래픽 기법이다. 스마트 폰이 사람들에게 널리 보급되면서 우리에게 친숙하게 다가왔 고 이를 이용한 다양한 애플리케이션은 선풍적인 인기를 끌고 있다. 우리는 오픈 소스인 Mixare를 이용하 여 위치정보를 실시간으로 서비스하는 증강현실 기술을 애플리케이션을 개발하였다. 이 논문은 앤드로이드 폰 용 위치정보 서비스 애플리케이션 ‘홍대에 가면~’의 개발에 대하여 기술한다. 앱은 폰으로 학교주변의 건 물을 비추면 그 건물에 관한 상세 정보를 화면에 겹쳐 보여준다.
We present state-of-the-art results from a lattice QCD calculation of the nucleon axial coupling, $g_A$, using M\obius Domain-Wall fermions solved on dynamical $N_f = 2 + 1 1$ HISQ ensembles after they are smeared gradient-flow algorithm. Relevant three-point correlation functions calculated method inspired by Feynman-Hellmann theorem, and demonstrate significant improvement in signal for fixed stochastic samples. The is performed at five pion masses $m_\pi\sim \{400, 350, 310, 220,...
In mobile SCTP, a terminal has two or more network interfaces and vertical handover occurs when it moves from one to another. The delay due the process slow-start phase of SCTP's congestion control after cause substantial performance degradation. If node goes back forth frequently, excessive handovers occur data transmission quality deteriorates. order provide required level QoS for on-going application, frequency should be kept minimized. this paper, we propose transport layer mechanism...