Ethylene Oxide 처리와 Gamma 선 조사가 건조 농산물의 품질에 미치는 영향

김영재,양재승,조한옥,권중호,변명우 한국식품위생안전성학회 1986 한국식품위생안전성학회지 Vol.1 No.2

Gamma irradiation as a new physical treatment was applied to comparative researches with a conventional chemical fumigant on the microbiological and physicochemical qualities of selected agricultural products such as powdered hot pepper soybean paste, oyster mushroom powder, carrot flake, and raw sesame. The microorganisms contaminated in the sample, including total bacteria, thermophiles, acid tolerant bacteria, fungi, osmophilic molds and coliforms were sterilized with irradiation doses of 7-10 kGy, while ethylene oxide (E.O) fumigation proved insufficient for the destruction of them. An optimum dose of irradiation was less detrimental than E.O. fumigation to the physicochemical properties of the sample. Sensory evaluation after three months of storage at room temperatures showed that the overall acceptability of irradiated sample was higher than that of the nontreated control as well as E.O. fumigated samples.

A Study on the Effect of Using a Flattening Filter in a Medical Linear Accelerator on the Dose Distribution

김영재,동경래,정운관,임창선,Cheon-Soo Jeong,서윤정 한국물리학회 2014 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.64 No.6

This study compared the dependence of the tissue maximum ratio (TMR) and the beam profileon the use of a flattening filter when a linear accelerator is used for radiation exposure of a smallfield size. To examine change according to the field size, we limit the collimator size to 1, 2 and 3cm. A water phantom and an ion chamber are used to measure each TMR while a diode is used toobtain the beam profile. The TMR is approximately 4% higher at a depth of 10 cm in the normalmode than it is in the stereotactic radiosurgery (SRS) mode and approximately 8% higher at adepth of 20 cm in the normal mode than it is in the SRS mode. According to the measurementresults for the beam profile, the dose decreases slightly faster in the SRS mode than in the normalmode. On the other hand, the two modes do not show any significant difference because similarshapes are observed in the two modes. According to the analysis results for the TMR and the beamprofile for a small field size, there are almost no differences between the normal mode and the SRSmode. Therefore, the SRS mode can be used to increase the dose rate in radiation treatments thatuse a small field size and to reduce the time for treatment.

勤勞者의 意思決定參加가 職務態度, 組織沒入, 勞使關係의 雰圍氣에 미치는 影響

金永在 동국대학교 경주대학 1994 東國論集 Vol.13 No.-

The purpose of this study is to analyze the present situation and organizational impact of worker participation in decision making from the perspectives of organizational behavior. On the base of reviewing the literature of existing studies, this research set two hypotheses and empirically examined them. The sample consists of 576 employees of 13 textile and machinery firms, which are located in four cities in Korea. In data analysis, first, reliability and validity tests were conducted, followed by T-tests. Through statistical testing, we found the following results. First, a joint consultation is the prevalent system of worker participation in decision making, and a degree of worker participation is lower than we expect, less than the average(3 point). Second, the group of employees who perceive a high degree of participation in decision making has shown higher job satisfaction, job involvement, organizational commitment and a better labor-management relationship climate than group with lower participation in the same areas. Third, the group of employees who perceive a high degree of activeness in the operation of worker participation plans has also shown the same results above. In conclusion, worker participation in decision making seems to directly affect worker attitude toward job, organization, and labor-management relationship climate. From the above findings, we can draw the following managerial conclusions, that is, a firm must increase the level fo participation and activate participation plans in order to improve organizational effectiveness through participation in decision making.

남북한 통일정책의 변천

김영재 청주대학교 국제문제연구원 2000 國際文化硏究 Vol.18 No.-

남북한 통일정책의 변천

김영재 청주대학교 사회과학연구소 2000 한국사회과학연구 Vol.21 No.-

리더쉽의 本質과 促進策

김영재 경기대학교경영대학원 1991 最高經營者課程 經營硏究 Vol.2 No.-

스포츠 심상훈련에서 가상현실 기법의 활용 모색

김영재,김재훈 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.2

This study is focused on the concept and theory of image training and its characteristics and actual effect along with the virtual reality. For image training to take effect and lead to the improvement in competitive power. both athletes and instructors should always try to find out ways to practice image training in a theoretical way, while working out to find out a psychological preparation method for each of the athlete, with more comprehensive point of view. Virtual reality technology is very useful for the sports science 21C, and is able to contribute to the development of new teaching and learning methods in sports science. One of these computer-based technologies. virtual reality, is possible to use in many directions. Virtual reality is defined as a highly interactive. computer-based. multimedia environment in which the user becomes the participant, with the computer in a virtual real world. A key feature of virtual reality is real- time interactivity, in that the computer is able to detect user inputs and instantaneously modify the virtual world. It is being used in a wide variety of fields including physics. chemistry, human biology. biomedical sciences, military. architecture, industry and the entertainment. In field. using sports science program developed by virtual reality technology can increase the interests of athletes, promote understanding of sports science concepts, help sports activity, and encourage creative learning. The Future of virtual reality in sports activity is bright.

강원도 삼척시 근덕면 궁촌항 방파제 확장 전, 후의 해안선 변화

김영재,황상일,윤순옥 한국지형학회 2019 한국지형학회지 Vol.26 No.2

This study tries to reveal influence of artificial structure construction on shoreline change using DSAS 4.3. Before breakwater extension at the Gungchon Port, beaches at the study area were dominated by long-term erosion and especially, severe shoreline retreat was prevailed at the Wonpyeong Beach that is opened to offshore. During 2 years after the extension leading formation of shadow zone, the Gungchon Beach was rapidly developed due to sand supply to the shadow zone and then stabilized. The shadow zone only affected the northern part of the Wonpyeong Beach, while beaches from the southern part of the Wonpyeong Beach to the Munam Beach was little affected. Beach nourishment and groin construction led beach development at the northern part of the Wonpyeong Beach, while beach erosion from the southern part of the Wonypeong Beach to the Munam Beach was caused by the groin. This study suggests that sufficient consideration before coastal structure construction should be made regardless of purposes.

소아의 연령감정에 대한 증례보고

유종만,이상호,김영재 大韓小兒齒科學會 1988 大韓小兒齒科學會誌 Vol.15 No.1

The Purpose of this case report is a determination of original age based on the growth, development and eruption of teeth. Three children were selected for the determination of original age and panoramic view of each subject was taken. Determination of age was performed by comparison stages of development of teeth by Schour & Massler and Nolla and stage of development on panormic view. The results were as follows: Case 1. : 5.5 years ±6months. Case 2. : 7.5 years ±6months. Case 3. : 6 years ±6months. In future, continuous study for stage of the development of teeth in relating to korean children is needed to reduce error for the determination of age.

강원도, 충정도 지역 언어의 건축 관련 어휘에 대한 고찰 - 주거 관련 방언을 중심으로 -

김영재 한국건축역사학회 2020 한국건축역사학회 학술발표대회논문집 Vol.2020 No.11