• Journal of the Korea Society of Computer and Information
• /
• v.12 no.2 s.46
• /
• pp.9-19
• /
• 2007

In recent, development of wireless internet technology gradually has increased multimedia application in mobile device. Specially, application of grand capacity multimedia contents has increased in mobile environment gradually. MPEG-7 can search multimedia data using various type. But in restricted grand capacity of multimedia, MPEG-7 is used to be limited in desktop computer system mostly. Therefore, management of grand capacity multimedia data has become very important researching topic in mobile environment, and so embedded DBMS based on MPEG-7 for multimedia data management in client-server environment is needed. The system supports restricted hardware resource for multimedia application in mobile device. In this paper, we propose a method for MPEG-7 data clustering that included MPEG-7 data property. On the base of the clustering result, we also develop the embedded multimedia database management system based on MPEG-7 scheme(EMDS:MPEG-7 Scheme Based Embedded Multimedia Database Management System) in mobile device such as PDA.

• The Journal of Korean Association of Computer Education
• /
• v.13 no.4
• /
• pp.69-75
• /
• 2010

As several users use a system simultaneously, a job management system is used to prevent exclusive uses in the system by a certain user and share entire resources for all users. The job management system is a type of scheduler that distributes limited resources for each job inquire efficiently. The system can be classified as different types and is to be properly selected according to the characteristics of systems and jobs. An NEC system is a job management system and usually applies NQS. The job management system has several queues, which are able to process jobs through distributed resources in which the efficiency of such job processing can be varied according to the composition of these queues. This study designs and configures differentiated queues according to service levels in order to improve the efficiency of the entire system as NQS is designed and that performs job processing. Also, this study analyze the performance of the job processing.

• Journal of Environmental Policy
• /
• v.12 no.3
• /
• pp.49-71
• /
• 2013

Nanomaterials, which have the issues related to toxicity, environmental exposures, and human health, have been focused on significance of their safety management. Regarding their higher applicability for multiple sectors from chemicals to consumer products, the most important thing is to consider international policy cases categorized by regulatory intensities, applicable sectors, and substance types for establishing of convincing safety management system on nanomaterials. For minimizing the nanomaterials' risk potential, developing the system that underlines a precautionary principle is also needed. Regulatory system on nanomaterials should be applicable to the status quo and be a proactive approach to rapidly changing international trends.

• Proceedings of the Korea Water Resources Association Conference
• /
• 2007.05a
• /
• pp.31-39
• /
• 2007

In this study we developed a turbidity management system to support the operation for effective turbid water management. The decision-making system includes various models for prediction of turbid water inflow, effective reservoir operation using the selective withdrawal facility, analysis of turbid water discharge in the downstream. The system is supported by the intensive monitoring devices installed in the upstream rivers, reservoirs, and downstream rivers. SWAT and HSPF models were constructed to predict turbid water flows in the Imha and Andong catchments. CE-QUAL-W2 models were constructed for turbid water behavior prediction, and various analyses were conducted to examine the effects of the selective withdrawal operation for efficient high turbid water discharge, turbid water distribution under differing amount and locations of turbid water discharge. A 1-dimensional dynamic water quality model was built using Ko-Riv1 for simulation of turbidity propagation in the downstream of the reservoirs, and 2-dimensional models were developed to investigate the mixing phenomena of two waters discharged from the Andong and Imha reservoirs with different temperature and turbidity conditions during joint dam operation for reducing the impacts of turbid water.

• The KIPS Transactions:PartD
• /
• v.10D no.6
• /
• pp.1017-1024
• /
• 2003

Jini is a promising HomeNetworking middleware of computing environment based on Java Technology. To support Homenetwork service based on Jini, Jini device requires a successive operation and complicated management. In this paper, our service management system is a service provider component and lookup service component including automation module. Our automatin module privide searching and setting function of a library, runtime environment and class file system cinfiguration information for Jini service. Our system can be accomplished by automation of runtime environment, simplification of service management structure, visualization of service execution.

• KIISE Transactions on Computing Practices
• /
• v.22 no.12
• /
• pp.632-645
• /
• 2016

The enterprise environment, various interface systems are utilized for business processes and for exchange of messages. In the interface communication environment, as business complexity increases, the interface system is connected with numerous systems. With increasing number of linked systems, there is a proportional increase in the workforce, leading to a rise in numerous risks (inconsistency of information, non-compliance with standards, etc.). To solve the problem, we propose a system for managing and centralizing information of the message based interface system. The proposed system enables information integration management, message information distribution, standard code generation, risk management and risk evasion. Using the proposed system, the in development environment user can prevent inconsistent information, analyze risk, avoid risk, distribute information automatically and create a standard code. Ultimately, there is an increase in user productivity and it is possible to evade the risks involved.

• Journal of Digital Convergence
• /
• v.3 no.1
• /
• pp.165-182
• /
• 2005

Development of integration management system needs to operate and manage internet shopping mall for customer, sale, product, stock, account management. The purpose of this paper implements of small shopping mall logistics management system as a plan to raise efficiency of management of the Internet shopping mall which was a representative business form of electronic commerce. Logistics management system operates an Internet shopping mall, progressed with the aim of construction of the management system that systematizes a member, a product, a stock, customer management, and can efficiently manage a total stock grasp and the amount of transaction of a product based on Web by real time.

• Journal of Korean Society on Water Environment
• /
• v.35 no.6
• /
• pp.520-538
• /
• 2019

In this study, it was proposed that a method of setting the target water quality for TOC using the watershed model and the load duration curves to manage non-biodegradable organics in the total water load management system. To simulate runoff and water quality of the watershed, the HSPF model is used which is appropriate for urban and rural areas. Additionally, the load duration curve is used to reflect the variable water quality correlated with various river flow rates in preparing the TMDL plans in the U.S. First, the model was constructed by inputting the loads calculated from the pollutant sources in 2015. After the calibration and verification process, the water quality by flow conditions was analyzed from the BOD and TOC simulation results. When the BOD achieved the target water quality by inputting the target year loads for 2020, the median and average values of TOC were proposed for the target water quality. The provisional method of TOC target water quality for the management of non-biodegradable organics, which is one of the challenges of the total water load management system, was considered. In the future, it is expected to be used as basic data for the conversion of BOD into TOC in the total water load management system.

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.9 no.2
• /
• pp.63-71
• /
• 2013

WAVE(Wireless Access for Vehicular Environment) System is a communication technology to monitor system failure and vehicle functions and management services to prevent possible incidents of driving a vehicle. In this paper, we have designed and implemented the mutual message processing through parameter between WME management module that manages WAVE system and MLME that manages the upper layer MAC(Media Access Control) module. Also, in order to verify the validity, we have carried out experiments to compare the speed of data processing by dividing data of 1Mbyte, 2Mbyte, 3Mbyte into the packets of 2KByte and 4KByte. Experiments data processing speed of 2KByte packet were shown about 173.62ms in 1MByte, 2MByte about 352.61ms, 3MByte about 550.13ms and, data processing speed of 4KByte packet, 1MByte approximately 87.56ms, 2MByte about 177.94ms, 3MByte about 277.18ms. Therefore, in WAVE system, the mutual messages processing through the parameters between WME and MLME module can be utilized in the various service of ITS(Intelligent Transportation Systems) depending on the speed of data processing.

• The Journal of the Korea Contents Association
• /
• v.15 no.8
• /
• pp.18-23
• /
• 2015

Recently, in Korea, private education is being dramatically developed, and the number of small- and medium-sized academies is increasing exponentially. Therefore, academies are building their own management system to realize efficient management appropriate for their situations. Also, the academy management system is more needed in mobile environment nowadays on account of severe competition among academies and necessity for differentiated instruction and systematic and efficient management. In this study, a mobile academy management prototype app has been developed in order to reduce small-and medium-sized academies' temporal and economic costs by supporting their students' attendance management and communication among parents, students, academies, and instructors in mobile environment.