들깨(Perilla ocimoides L .) 종자의 단백질 분리에 따른 Phytate 와 질소의 용해도

이재하,윤형식 한국농화학회 1989 Applied Biological Chemistry (Appl Biol Chem) Vol.32 No.4

Nitrogen and phytate solubility of perilla seed flour were influenced by the following factors: pH, centrifugal force, temperature and the presence of salt. The nitrogen solubility of perilla seed flour was minimum(17.1∼18.0%) at the pH range of 4.0∼5.0 and maximum(92.3%) at pH 11.0, while phytate solubility was the highest(48.5%) at pH 4.8 and lowest(8.3%) at pH 11.0. The phytic acid content in the extract decreased with an increase in centrifugal force. However, the nitrogen content was not affected by centrifugal force. The solubility of nitrogen and phytate gradually increased as the temperature was increased from 5℃ to 60℃ The addition of calcium(0∼50mM) at pH 5.0 decreased the phytate solubility, but increased nitrogen solubility. The solubility of nitrogen and phytate of perilla seed protein isolate was gradually increased as pH raised further. The protein and phytate contents of the perilla seed protein isolate were 1.1 and 89.6%, respectively, compared to 5.0 and 60.1% for perilla seed flour.

亞鉛-鐵 合金電析에 있어서 電解條件이 析出助成 및 陰極電流 效率에 미치는 影響

李在夏,尹正模 전북대학교 공업기술연구소 1983 工學硏究 Vol.13 No.-

The effects of the electrolysis condition on the composition of deposits and cathode current efficiency were investigated in the electrodeposition of zinc-iron alloy. Zinc-iron alloy was elestrdeposited from sulfate solutions and the cocentration of electrolytic solution, current density, temperature and pH were varied in order to examine these effects. Zinc sulfate. iron sulfate and glue were contained in sulfate solutions and sulfuric acid was used to control the pH of this solution. The results obtained in this study were summarized as follows; 1) The percentage of iron deposition was increased as the iron ion in electrolytic solution increased. 2) Base Zinc was preferentially deposited than noble iron with the incraese of current density, because zinc hydroxide film was formed on cathode. 3) The percentage of iron deposition was increased as the temperature of electrolytic solution increased. 4) The percentage of iron deposition was little changed as pH increased. Cathode current efficiency was found to be varied similarly with the deposits.

地理學에 있어서 地圖의 活用

朴炳守,李宰夏 大邱大學校 社會科學硏究所 1987 社會文化硏究 Vol.6 No.-

This paper reexamines the academic relationships between geogrephy and cartography or map, and the desirable usage of maps for geographic study. Geography and cartography share a central concern with spatial patterns ans spatial analysis of the earth's surface. And most of cartographic education is offered by department of geography in colleges and universities. Especially, the pedagogic goals and roles of cartographic education for geographers include the development of map interpretation skills and a facility for using the map as an anlytical tool. This means that the values and usefulness of maps is well established as a tool or technique for geographic study. When geographers use maps as a tool, they should pay regard to the map elements and their uasge. There are eleven fundamental map elements for map-reading & map-reading. They are title, orientation, autor, date fo drawing, symbols, legend, scale, prohection, grid, index, and source of information. These elements would help map readers understand it more easily or make it more "map-like." But these map elements are not always needed to every map and are used differently according to the use of map. Most maps need title, orientation, author, date, symbols, legend, and scale. Therefore, map-user should focus on these seven elements and their usage.

計量分析模型을 통한 主要 製造産業의 硏究生産性分析

이재하 남서울대학교 1995 남서울대학교 논문집 Vol.1 No.-

The main objectives of this study are 1) to identify the Time-lag structure between input and output in corporate activities. 2) to extract the major effect factors among the input factors. We take electric·electronic, machinery and total manufacturing industries in the period 1976-1993 as a range of analysis in this study. Input Factors are included in R&D expenditure, R&D manpower, Production expenditure, Production manpower, Marketing expenditure. Technology Import Payment, and the Number of manpower classifed by an academic degree. Output Factors are prescribed the number of Patents Applied & Granted as direct outcomes. In this study, the following results have been gained by carrying out the various multi-variate analysis. 1) The time - lag (1∼3 years) period is shorter than that the established foreign studies. 2) Patents Applied & Granted are affected by the Technology Import as much In-house R&D as ever. 3) Direct outcomes are affected by the Expenditure (R&D, Production) than by the Manpower(R& D, Production). It is expected that these results will be useful in establishing technology investment policy in Korean manufacturing industries.

技術需要 調査事業의 展開方向에 관한 硏究

이재하 남서울대학교 2001 남서울대학교 논문집 Vol.7 No.-

A nation's technology policy is based on the broad principles that govern the allocation of its technological resources. But the cost of inadequate investments in technology development is particularly high in today's globally-competitive environment where continued where continued technological advancements are critical to sustain. This paper presents a methodology for searching the new and /or advanced technologies to promote Korea's technological and economic competitiveness by industrial technology policy. The conceptual framework of industrial technology development, which is the main focus of this paper, was designed using both Top-down and Bottom-up approach. And the technology classification system was modified reviewing its previous system. The technology supported by the government is categorized as the three key technology : proprietary technology, generic technology, infra-technology. The conditions essential for survival in advanced economical situations will admittedly depend upon technology-based strategies that emphasize the integration of these category of industrial technology.

ICAO 소음 인증기준에 따른 틸트로터 항공기의 소음 레벨 예측법에 관한 연구

이재하,이욱,최종수 한국항공우주학회 2007 한국항공우주학회 학술발표회 논문집 Vol.- No.-

로터 실험 장치용 Rotating Balance의 설계 및 성능 검증에 관한 연구

이재하,이욱,최종수 한국항공우주학회 2008 한국항공우주학회 학술발표회 논문집 Vol.- No.-

루터의 <요한 1서 주석(1527)>에 나타난 성화 개념

이재하 대학복음화학회 2004 대학과 복음 Vol.0 No.10

주차안전시설물 중소제조기업의 품질경영 만족수준이 재 구매 및 타인 추천에 미치는 영향에 관한 연구

이재하,김인숙 남서울대학교 2005 남서울대학교 논문집 Vol.11 No.1

The purpose of this study is to examine the relationship between quality management satisfaction and product repurchasing and recommendation in small sized manufacturing industry which produce parking safety products. The categories for quality management satisfaction level are classified into product management, order disposal and quick delivery, and the extend of communication between manufacturer and buyer. The major findings of this study are as follows enterprise. 1) It has a positive relationship statistically significant between the quality management level and product repurchasing or product recommendation to another buyers. 2) The level of quality management & control and order disposal and quick delivery of parking safety product industry is not high. 3) Product repurchasing and recommendation were more affected by the extend of communication than the product management and order disposal and quick delivery. 4) It has a positive relationship statistically significant between product re-purchasing and recommendation. Concurrently, the results of this study will be useful guidelines for QMS framework in medium and small-sized parking safety product

기업연구소에서 대학으로의 이직선호에 관한 연구

이재하 남서울대학교 경영연구센타 2003 경영연구 Vol.5 No.-

This paper investigates empirically the reasons for changing their job from enterprise research institute to University. This paper is focused on the finding motivations to absorb their effort in their job. Through the analysis of 34 mail questionnaires and individual free interview, data was collected from professors who had worked in electronic R&D laboratory as key member of research & development division. This study obtains the practical informations on the turnover reasons and their understandings of past research organization. The result shows that the major reasons for turnover are to improve job stability and develop their career. And the result indicates that many of them haven't find their visions and future model in their past research organization.