• The KIPS Transactions:PartC
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• v.12C no.5 s.101
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• pp.749-756
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• 2005

We developed the CNU nt emulator which is an development environment for WIPI applications, wireless Internet applications for cellular phones with the WIPI software platform. The CNU WIPI emulator provides stable memory management and ability of installing, executing, deleting or managing WIPI applications. WIPI WAM provides quick execution of applications and convenient debugging function. In this paper, we describe the design, implementation issues of the CNU WIPI emulator and show its correctness of executing and performance improvement over $25\%$ by comparing it with other WIPI emulators.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10c
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• pp.130-132
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• 2003

최근 이동 통신 기술의 발달과 모바일 단말의 급속한 확산으로 인하여 무선 인터넷 환경에서의 컨텐츠에 대한 관심이 부쩍 높아지고 있다. 이러한 흐름에 발 맞추어 컨텐츠 및 응용 프로그램의 개발을 용이하도록 하기 위한 무선 인터넷 플랫폼의 표준화 작업도 한창 진행되고 있으며, 우리나라에는 이에 해당 하는 WIPI (Wireless Internet Platform for Interoperability)라는 플랫폼 규격이 만들어졌다. 하지만 WIPI가 만들어 진지 얼마 되지 않았고, WIPI 플랫폼을 채택하고 이를 활성화 시키고 있는 단말기 제조 업체도 아직 그리 많지 않아 아직 이를 기반으로 하는 컨텐츠는 많이 부족한 상태이다. 본 논문에서는 WIPI를 기반으로 하는 하나의 컨텐츠로서, 다른 컨텐츠의 부분 기능으로써도 유용하게 제공될 수 있는 무선 단말에서의 공간 지리 정보 제공을 위한 시스템을 설계하고 구현한다. 이를 위해 본 논문에서는 1) 모바일 단말에서 지리 정보를 제공하기 위한 시스템에서 제공해 주어야 하는 기능을 분석하고 이를 위한 시스템을 설계하며, 2) 이를 WIPI 에뮬레이터(Emulator)를 사용하여 구현함으로써 설계된 내용의 유용성을 보인다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• v.2
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• pp.83-86
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• 2006

모바일 플랫폼이 WIPI라는 표준 플랫폼으로 2004년 2월 WIP2.0으로 규격화되어 컨텐츠 개발 시간 및 비용의 최소화와 빠른 단말기 개발 공정으로 원활한 단말기 공급 그리고 1회의 컨텐츠 개발로 모든 이동 통신 사업자에 공급등 여러 가지 측면에서 장점을 가지게 되었다. 이러한 WIPI의 우수성을 우리가 직접 사용해 눈으로 확인 해보기 위해 모바일 컨텐츠 중에서 가장 활발하게 개발되고 있는 게임을 제작해 보았다.

• Journal of Korea Society of Industrial Information Systems
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• v.13 no.2
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• pp.8-17
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• 2008

Since different methods or protocols have been used to manage various mobile terminals, it has been difficult to manage mobile terminals efficiently. OMA(Open Mobile Alliance), therefore, proposed OMA DM(Device Management) as a standard for device management. In this paper, in an effort to apply the OMA DM concept ta real application area a home-delivery service management system using OMA DM agents is designed and implemented. The home-delivery service management system is developed using SyncML Tool Kit 4.3, SK WIPI SDK and Embedded Visual-C++ under the environment of SK-WIPI Clet. Since the home-delivery service management system is developed using OMA DD which is expected to be installed in most of the mobile terminals, separate lower level program modules for the management system would not be necessary. In order to justify this world some experiments are performed using SK WIPI emulator 1.1., which provides the same execution environments as a real mobile terminals does. Experiments show that the home-delivery service management system developed in this paper, works properly.

• The Journal of the Korea Contents Association
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• v.7 no.4
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• pp.1-9
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• 2007

Cellular operators develop high speed mobile internet and multi-function cellular phones to activate new business model based on mobile internet services. Domestic cellular operators evolve their mobile networks from cdma2000-1x and EvDo to HSDPA to activate high speed mobile internet services. They also develop mobile internet platforms such as WIPI, BREW, and J2ME on multi-function cellular phones having multimedia solutions such as camera, MP3, MPEG, 3D game engine, DMB, PAN such as bluetooth, IrDA, W-LAN, and location information using GPS. But, content providers have problems of redevelopment of the same mobile internet application on different mobile internet platforms provided by cellular operators. In this paper, we develop conversion solutions for interoperability of mobile internet applications on WIPI and BREW using an one-pass compiler. We confirm the performance the proposed conversion solutions for the API conversion rate, the converted file size, and the full conversion time using the popular mobile games which are the killer applications on WiPI and BREW.

• Journal of KIISE:Computing Practices and Letters
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• v.14 no.4
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• pp.363-368
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• 2008

Mobile devices become more complex and harder to manage due to the advance of technologies. In this paper, we designed and implemented the DM Agent based on OMA(Open Mobile Alliance) DM(Device Management) which is a standard for mobile device management. The proposed DM Agent basically can manage parameter configuration through the commands ADD, DELETE, REPLACE and GET currently. Each module of the agent was designed and implemented separately for additional functions such as error reporting and software management. So the additional functions can be added by modifying Adaptor part which processes the management commands instead of modifying other modules which analyze or generate management commands. The DM Agent proposed in this paper is implemented based on WIPI(Wireless Internet Platform for Interoperability), therefore portability of the agent can be improved. In addition, this research can give a development example for dissenminating OMA DM as well as verify functional compatibility of WIPI platform. SK WIPI SDK and a Funambol DM test server are used to test operations of the implemented DM Agent.

• The Korean Journal of Physiology and Pharmacology
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• v.20 no.6
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• pp.573-580
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• 2016

Caspases, a family of cysteine proteases, cleave substrates and play significant roles in apoptosis, autophagy, and development. Recently, our group identified 72 genes that interact with Death Caspase-1 (DCP-1) proteins in Drosophila by genetic screening of 15,000 EP lines. However, the cellular functions and molecular mechanisms of the screened genes, such as their involvement in apoptosis and autophagy, are poorly understood in mammalian cells. In order to study the functional characterizations of the genes in human cells, we investigated 16 full-length human genes in mammalian expression vectors and tested their effects on apoptosis and autophagy in human cell lines. Our studies revealed that ALFY, BIRC4, and TAK1 induced autophagy, while SEC61A2, N-PAC, BIRC4, WIPI1, and FALZ increased apoptotic cell death. BIRC4 was involved in both autophagy and apoptosis. Western blot analysis and luciferase reporter activity indicated that ALFY, BIRC4, PDGFA, and TAK1 act in a p53-dependent manner, whereas CPSF1, SEC61A2, N-PAC, and WIPI1 appear to be p53-independent. Overexpression of BIRC4 and TAK1 caused upregulation of p53 and accumulation of its target proteins as well as an increase in p53 mRNA levels, suggesting that these genes are involved in p53 transcription and expression of its target genes followed by p53 protein accumulation. In conclusion, apoptosis and/or autophagy mediated by BIRC4 and TAK1 may be regulated by p53 and caspase activity. These novel findings may provide valuable information that will aid in a better understanding of the roles of caspase-related genes in human cell lines and be useful for the process of drug discovery.

• Journal of Digital Contents Society
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• v.8 no.1
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• pp.17-25
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• 2007

Recently, the ubiquitous computing environment being able to connect all kinds of computing elements at anytime anywhere becomes widespread in human life. In this paper, we focus on a PC remote control system using cellular phones. Especially, we design and implement an mobile e-mail transmission system using PC remote control technique. By using our remote controller, cellular phone users can login into their own PC, and then send any file to others by e-mail attachment. To show the correct running of our system, real demonstration results are presented. We are sure that by opening our source code to the public our results can play an important role to encourage development of the various mobile remote control functionalities.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.8
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• pp.3541-3546
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• 2011

Autophagy is an evolutionarily conserved lysosomal pathway for degrading cytoplasmic proteins, macromolecules, and organelles in addition to recycling protein and ATP synthesis. Although autophagy is very important during embryogenesis, the mechanism underlying the dynamic development during this process remains largely unknown. In order to obtain insights into autophagy in early embryo development, we analyzed gene expression levels of autophagy-related genes (ATGs) in mouse embryos developing in vitro. Using real time RT-PCR technique, ATGs including Atg2a, Atg3, Atg4b, Atg5, Atg6, Atg7, Atg9a, and Wipi3, as maternal transcripts, were only up-regulated in 1-cell embryo stage before zygotic genomic activation (ZGA), and then expression decreased from 2-cell to blastocyst embryo stage. ATGs including Dram and Atg9b were expressed abundantly in 1-cell embryo state and in blastocyst embryo stage, athough Atg8 and Ulk1 were constantly expressed during preimplantation stage. However, Atg4d were only up-expressed from 4-cell to blastocyst stage. These results suggest that autophagy is related in mouse embryo, which possibly gives an important role for early development.

• Electronics and Telecommunications Trends
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• v.23 no.1 s.109
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• pp.44-53
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• 2008

모바일 플랫폼은 단말기에 탑재되어 단말기의 하드웨어 기능을 상위 계층에서 사용할 수 있도록 하여 주고, 상위 응용 계층에는 프로그래밍 환경 및 실행 환경을 제공하는 역할을 한다. CDMA 진영에서는 운영체제와 구분되어 사용되기도 하나 단말기 하드웨어의 성능이 향상되고 다양한 기능이 요구되어 운영체제로부터 애플리케이션 프레임 워크까지의 모든 소프트웨어를 일컫는 말로 사용되고 있다. WIPI, BREW, J2ME, Symbian 등 기존의 모바일 플랫폼 영역에 2007년에는 애플의 새로운 스마트폰인 iPhone과 구글의 새로운 플랫폼인 Android가 등장하여 모바일 플랫폼 경쟁은 더욱 심화되고 있다. 본 논문에서는 모바일 플랫폼 중 비중이 급격히 확대되고 있는 스마트폰용 모바일 플랫폼의 동향을 분석하고, 국내외의 모바일 플랫폼 동향을 예측해 본다.