• 한국정보통신학회논문지
• /
• 제27권1호
• /
• pp.76-86
• /
• 2023

항공기에 탑재되는 레이다는 연속적으로 I/Q 데이터를 획득하는 동안 주어진 시간 내에 신호처리를 완료하는 실시간성을 반드시 유지해야 하며, 공대공부터 공대지, 공대해, Ground Map까지 다양한 모드와 기능을 수행해야 하는 특징을 가지고 있다. 따라서 개발이 진행될수록 레이다 신호처리 SW를 구성하는 코드의 구조가 복잡해진다. 또한 여러 모드를 순차적으로 구현하는 과정에서 기존 코드를 재활용하기도 하고 신호처리 알고리즘의 일부분만 바뀌기도 한다. 이와 같은 이유로 실시간성을 유지하며 코드의 재사용과 부분 교체가 편리한 모듈화의 장점을 이용해야 할 필요가 있다. 본 논문에서는 공대지/해를 구성하는 모드의 신호처리 과정을 통해, 실시간성을 유지하며 항공기 레이다 신호처리 SW에 적용 가능한 모듈화 Framework의 설계 방안을 제시한다.

• 한국측량학회:학술대회논문집
• /
• 한국측량학회 2004년도 춘계학술발표회논문집
• /
• pp.507-512
• /
• 2004

Research that establish new cadastral survey model that use GPS to introduce GPS observation technique in cadastral survey and research that develop connection technologies are gone abuzz. The purpose of this research is to keep in step in such trend and grasp present condition and performance of surveying connection to common use GPS data processing software, and analyze data processing algorithm, and develop suitable GPS data processing software in our real condition regarding GPS data processing and result of control point calculation. This research studies analysis common use software and error occurrence by data processing method that college and company have. Also, It analyzes algorithm that is applied to existing GPS data processing software. After that we study algorithm that is most suitable with cadastral survey and then develop cadastral survey calculation software for new cadastral control points

• 대한전자공학회:학술대회논문집
• /
• 대한전자공학회 2002년도 ITC-CSCC -1
• /
• pp.149-151
• /
• 2002

We had been developing the variety of parallel processing systems in order to improve the processing speed of visual media applications. These systems were using multi-access memory system(MAMS) as a parallel memory system, which provides the capability of the simultaneous accesses of image points in a line-segment with an arbitrary degree, which is required in many low-level image processing operations such as edge or line detection in a particular direction, and so on. But, the performance of these systems did not give a faithful speed because of asynchronous feature between MAMS and processing elements. To improve the processing speed of these systems, we have been investigated a pipelined parallel processing system using MAMS. Although the system is considered as being the single instruction multiple data(SIMD) type like the early developed systems, the performance of the system yielded about 2.5 times faster speed.

• 아동학회지
• /
• 제20권3호
• /
• pp.231-244
• /
• 1999

This study examined the effects of short and long term playing of video gamer on children's visual parallel processing. All of the 64 fourth grade subjects were above average in IQ. They were classified into high and low video game users. Instruments were a visual parallel processing task consisting of imagery integration items, computers, and the arcade video game, Pac-Man. Subjects were pre-tested with a visual parallel processing task. After one week, the experimental group played video games for 15 minutes, but the control group didn't play. Immediately following this, all children were post-tested by the same task used on the pretest. The data was analyzed by ANCOVA and repeated measures ANOVA. The results showed that relaying short-term video games improved visual parallel processing and that long term experience with video games also affected visual parallel processing. there were no differences between high and low users in visual parallel processing after playing short term video games.

• 한국지역사회생활과학회:학술대회논문집
• /
• 한국지역사회생활과학회 2005년도 춘계학술대회 자료집
• /
• pp.155-155
• /
• 2005

• 대한기계학회:학술대회논문집
• /
• 대한기계학회 2007년도 춘계학술대회A
• /
• pp.751-755
• /
• 2007

The purpose of this study is to find the optimization processing on expanded tube using Taguchi method which was generally used to analyze the effects of various control factors. Mini-Tab is a good for program that is making a selection using Taguchi method. The results of experimental test and analysis are as follows. Optimization processing on a expanded tube is dependent on lubrication condition. The slight eccentricity of expanded tube was obtained a good results on the expanded tube. When expending processing on the expanded tube was performed, the test specimens were almost unaffected by changing pressure loading. The tendencies of test results were related to lubrication condition and eccentricity in expending processing. As a result, a proper lubrication condition and eccentricity in the step of design will improve the optimization processing of expanded tube.

• 한국유기농업학회지
• /
• 제26권2호
• /
• pp.181-202
• /
• 2018

Most of eco-friendly agrifood processing enterprises in Korean rural area are small and medium-sized business. For this reason, it's hard for eco-friendly agrifood processing enterprises to neither analyze business performance for efficient business management nor establish their own business plan for rational decision-making. Therefore it's necessary to design effective mathematical programming model and to make practical application which can support rational management decision-making ensuring the stable business activity of eco-friendly agrifood processing enterprises. Accordingly this paper focuses on the designing and its application of multi-objective mathematical programming model using goal programming to support rational decision-making of eco-friendly agrifood processing enterprise. Hansalimanseongmachum Food Inc. which runs soy bean processing business making tofu based on regional-based soybean farms around Anseong City will be the specific case to apply multi-objective mathematical programming model in practice. And it will suggest measures to support rational management decision-making of other eco-friendly agrifood processing enterprises.

• 한국식생활문화학회지
• /
• 제1권3호
• /
• pp.219-229
• /
• 1986

The consumption of meat processing products in was creased in Korean recently. Morever the demand of tasted meat processing products being gradual increase in general tendency, and so we expect that in the continuing of westernizing for food life and universalizing of urvanism, the demand of meat processing products. In order to improve the marketing strategies for the meat processing industries, consummeris particular behaviors were analyzed as for consummer's recognition, recognition of problem, the evaluation of substitutional proposal, the decision of purchasing intention an purchasing behavior and the evaluation of post-purchasing to the meat processing products.

• International Journal of Contents
• /
• 제12권1호
• /
• pp.60-64
• /
• 2016

As new applications of cloud data management system (CDMS) such as online games, cooperation edit, social network, and so on, are increasing, transaction processing capabilities for CDMS are required. Several transaction processing methods for cloud data management system (CDMS) have been proposed. However, existing transaction processing methods have some problems. Some of them provide limited transaction processing capabilities. Some of them are hard to be integrated with existing CDMSs. In this paper, we proposed a new concurrency control method to support transaction processing capability for CDMS to solve these problems. The proposed method was designed and implemented based on Spark, an in-memory distributed processing framework. It uses RDD (Resilient Distributed Dataset) model to provide fault tolerant to data in the main memory. In our proposed method, database stored in CDMS is loaded to main memory managed by Spark. The loaded data set is then transformed to RDD. In addition, we proposed a multi-version concurrency control method through immutable characteristics of RDD. Finally, we performed experiments to show the feasibility of the proposed method.

• 소성∙가공
• /
• 제16권5호통권95호
• /
• pp.406-411
• /
• 2007

The microstructure and the hardness of interstitial free steel processed by equal channel angular pressing (ECAP) was investigated experimentally. ECAP processing of route A and route C was compared with regard to grain refinement by transmission electron micrographs. Micro hardness evolution was correlated with the gram structure produced by ECAP. Especially, the effects of the ECAP processing temperature and the number of processing passes were discussed in terms of grain refinement.