동기유발을 위한 ARCS이론을 적용한 수업이 수학과 문제해결력 신장에 미치는 영향

성열욱,김상운 한국학교수학회 2001 韓國學校數學會論文集 Vol.4 No.2

All men's achievement and behavior is always based on motivation. It has been reported that learning motivation plays an important role to get achievement of study to approximately 16∼38%. Therefore, a lot of researchers agree that learning motivation must be required for learning achievement. This study focuses on "How behavior induces learning motivation from learners?" I adapted "the Attention, Relevance, Confidence, Satisfaction" which is supported by John. M. Keller in the model of ARCS to the course of teaching-learning in order to improve them systematically. The effectiveness and results of adaptation must be considered to solve the math problems.

GSIS 자료기반부 설계를 위한 ACAD-SYSTEM의 활용방안에 관한 연구

박운용,이대명,차성렬 동아대학교 공과대학 부설 한국자원개발연구소 1994 硏究報告 Vol.18 No.1

GSIS is a system that contains spatially referenced data that can be analyzed and converted to information for a specific set of purpose,or application. The key of feature of a GSIS is the analysis of data produce new information. The history of using computers for mapping and spatial analysis shows that there have been paralled developments in automated data capture, data analysis, and presentation in several broadly related fields. Geo-spatial information systems do have a lot in common with auto computer aided drafting(ACAD) systems used for drafting a wide range of technical objects. This study aims to convert of GSIS database model by ACAD system.

컴퓨터 매핑시스템에 의한 국토정보관리 기본구상에 관한 연구

박운용,차성렬,신상렬 東亞大學校 大學院 1994 大學院論文集 Vol.19 No.-

Computer Mapping System(CMS) are being used in various government offices as well as coporates as a tool in decision making. Efforts are being made to implement computer mapping system databases to systematically and effectively carry out planning, management and monitoring in various fields. But the present dituation is that the database design itself is a big job since the methodology of planning and design of mapping systems are still being studied. This study is about the base conception of Land Information Management, which is an important and time consuming activity necessary in the implementation of such systems. The study was then applied to highway, environment, map management where the functions and data used in highway, environment, map management system were identified through system analysis and the computer mapping system database was designed based on this analysis. Also appplication systems were developed to support departments which used various maps and drawings. Conclusively, the techniques introduced in this study could serve as a useful tool not only in buiding more specific land evaluation system but also in collecting data necessary for Land Information Management System.

제조물책임법 시행에 따른 건설업체 대응방안

허성관,박동은,정종태 대구대학교 산업기술연구소 2003 産業技術硏究 Vol.15 No.1

PL(product liability) was put in forced in July 2002 to protect Consumer's light and to ensure manufacturer's liability. Product can be defined as manufactured or processed movable properties which are the component of estates and movable properties. PL laws was effect on processed movable properties but estate is exception to the rule. It means that the defect of building and land is exceptions to the rule. But, construction is composed of many continuous elements and it can be contained defective parts, which was caused consumer's damages. In this case, conflicts between consumer and constructor are inevitable. Business reliability will be damaged for construction delay and inevitable conflict.

혼합용매법에 의한 Mullite 전미분체 생성기구에 관한 연구

황운연,이정운,박형상,김용렬,구기갑 한국화학공학회 2003 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.41 No.4

Si-와 Al-알콕시드의 반응속도 차이를 조절하기 위한 부분 가수분해법과 입자 형태를 제조하기 위한 혼합용매법을 이용하여 구형의 미세한 mullite 전미분체를 제조하였다. Mie 이론을 적용시켜 반응시간에 따른 반응용액의 탁도 및 입자 수밀도의 변화를 측정하여 혼합용매법에 의한 입자 생성기구에 대하여 고찰하였다. 알콕시드와 옥탄올 용액에 아세토니트릴을 첨가하면 알콕시드의 용해도가 낮아지고 따라서 알콕시드의 일부가 액적을 형성하며, 액적은 안정화제 (HPC)에 의하여 구형을 유지하게 된다. 그리고 가수분해 및 축합중합 반응에 의하여 액적의 입자 크기는 감소하며, 동시에 혼합용액에 용해되어 있던 알콕시의 가수 분해 및 축합중합 반응에 의하여 미세 입자가 생성된다. 액적형태로 생성된 큰 입자와 미세 입자의 응집에 의하여 최종 입자가 생성되었다. In this study, spherical fine pre-mullite particles were prepared by partial hydrolysis method to control the reaction rate difference of two alkoxides, and by mixed solvent method to control the particle shape. Based on the adaptation of Mie theory, the formation mechanism of pre-mullite particle in alkoxide-octanol-acetonitile system has been investigated by measuring of the turbidity of solution, the number density and the size of the particles during the reaction. As the acetonitrile was added in the alkoxide-octanol solution, the solubility of the alkoxide decreased. A part of alkoxide was segregated from solution in the form of droplets. whereas the rest of the alkoxide existed as dissolved state in octanol. The droplets are stabilized with stabilizer (HPC). In the next step. hydrolysis and condensation reactions of the alkoxide droplets decrease the size of droplets and, at the same time, fine particles are formed from the alkoxide dissolved in octanol. Subsequently, the final particles are produced by aggregation between the large particles through the droplet form and the fine particles.

超硬合金의 放電과 超音波複合 加工에 관한 硏究

尹聖雲 조선대학교 동력자원연구소 1991 動力資源硏究所誌 Vol.13 No.1

The combination of two machining processes may result in the increase of productivity. This is an approach worthy to be tried, especially for the machining of so-called difficult to machine materials. In this study, ultrasonic machining(USM)is combined with electric discharge machining(EDM)for the machining of cemented carbide. It is confirmed through the experiments that this new machining process is effective in attaining a high material removal rate.

패각분말의 소성가공 특성에 관한 연구

이상은,오성규,김종오 경상대학교 환경보전연구소 2000 環境保全硏究所報 Vol.8 No.-

The objective of this study was to investigate the proper calcination conditions of powdered oyster shell. The physical and chemical characteristics such as particle size distribution. calcium contents, pH, and CEC(Cation Exchinge Capacity) were also examined. The following results were obtained. 1. As the powdered oyster shell was ignited in high temperature of 650℃ to 950℃, the calcination reactions was effectively progressed. The amount of weight loss during calcination would be matched with the generation of carbon dioxide gas. 2. In the calcination of powdered oyster shell. the amount of weight loss increased according to the increase of calcination temperature and retention time. It was founded that the proper temperature and retention time of calcination was 850℃ and 40 minute.

직무만족 및 직무성과에 대한 기업문화특성의 영향

박운성,박승동 慶北大學校 1997 經商論集 Vol.25 No.1

수치지형모형에 의한 도시계획 지구의 정지표고 산정에 관한 연구

박운용,차성렬,신상철 동아대학교 공과대학 부설 한국자원개발연구소 1994 硏究報告 Vol.18 No.1

The use of digital terrain model has been enlarged in calculation of earthwork plays a major rule in plan or design of many civil engineering projects, and thus it has become very important to advance the accuracy of earthwork calculation. The earthwork volume,an important factor in the field of civil engineering,could be counted with the computerized by the use of simpson's 1/3 and 3/8 rules. The thesis is the earthwork volume could be counted by the measurement of HAEUN-DAE-GU topograph data.

한국 재래산양에서 Bovine Viral Diarrhea, Bovine Herpesvirus-1, Parainfluenza Type-3 바이러스에 대한 혈청학적 연구

한동운,권용국,문진산,윤소라,위성환,장환,탁동섭,이태욱,강문일 한국수의공중보건학회 2003 예방수의학회지 Vol.27 No.3

The 948 goat sera were serologically tested for ten pathogens including bovine viral diarrhea (BVD), bovine herpes virus type-1 (BHV-1) and parainfluenza virus type-3 (PI-3). By viral neutralizaion test, three pathogens including BVD virus, BHV-1, PI-3 were applied for screening each neutralizing antibody and its titration. Among 948 sera, there were 215 seropositives (22.7%) against BVD virus, 25 (2.6%) against BHV-1 virus, and 161 (17.0%) against PI-3 virus, respectively. In the seropositive cases to BVD virus, provincial prevalence of them were recorded as Gyeongnam(30.8%) for the highest one, while as Jeonbuk (15.8%) and Gyeongbuk(l6.7%) relatively for the lower ones. Among them, higher than 1:8 in antibody titration was classified as 74 cases (34.4%) which were suspected the cycle of its infection in their herds. Among the seropositives to BHV-1, it was relatively lower prevalence rate ranging from 1.7% to 6.7% that those of BVD virus and PI-3, but more importantly they were prevailing across the country. Most of the seropositive cases (42.9%) to PI-3 were classified as 1:4-1:16 in titration, but also distributed all around the country. The prevalence in goats varied according to areas (15.8 to 30.8%). Related to the provincial prevalence of three viral agents in Korean goats, it seemed that three viral pathogens would be directly or indirectly involving in various disorders as primary or secondary causative agents resulting in decreased productivity.