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김재윤,서용원,장철성,D. S. Kim,김대연,J. B. Kim,K-R Kim 한국물리학회 2007 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.50 No.I
Wheat mutants generated from a cultivar ``Geumgangmil"by using a $^{60}$Co source (gamma-ray) were developed for bentazone (3-isopropyl-2,1,3-benzo-thiadiazin-4-one-2,2-dioxide) resistance. Resistant M$_2$ plants were selected from seedlings and adult plants consecutively. Bentazone-resistant wheat plants were able to survive at up to 10 times (1,600 ppm) the commercially recommended concentration. The four plants with the highest bentazone resistance were selected. An AFLP (amplified fragment length polymorphism) analysis was applied to identify molecular markers for bentazone-resistant wheat mutants. Twelve polymorphic products, which were unique to bentazone-resistant plants, were identified, cloned, and sequenced. Among the twelve polymorphic bands, eight Sequence-tagged Sites (STS) primer sets were designed. Only one STS primer set (HRMW-08) was converted a ``Bentazone-resistant wheat-specific" STS marker. The wheat mutants and markers that we obtained could be employed in a cross-breeding program incorporated with marker assisted selection (MAS) in the early stages of population segregation.
김재윤,김경식,김석윤 ( J . Y . Kim,K . S . Kim,S . Y . Kim ) 한국열처리공학회 1996 熱處理工學會誌 Vol.9 No.4
The direct reaction method has been used for the fabrication of Al-Mg/Al₂O₃functionally gradient materials. It was found that the reaction layer of the Al-Mg/Al₂O₃powder compact at 900℃ under air atmosphere led to the formation of reaction layers with varying ceramic phase contents. As the results of experiments by using the TGA system, the characteristics and growth behavior of the reaction layers were affected by the reaction temperature, the gas flow rate, the Mg contents and the Al₂O₃contents.
김재윤,박영한,박돈목,박래준,Kim, Jae-Yoon,Park, Young-Han,Park, Don-Mork,Park, Rae-Joon 대한물리치료학회 2001 대한물리치료학회지 Vol.13 No.2
Until now, it has not been well known for Far-infrared(FIR) how to affect to the human body. We introduced and presumed the mechanism of FIR based on molecular biology in this study, as below. The human body is composed of proteins which get easily changed by a thermal factor (about 42 $^{\circ}$C over). FIR with low temperature can deeply penetrate on the human body composed things without troublesome, since FIR has effectively operated on the human body at low temperature (35-40 $^{\circ}$C). When FIR penetrated on the human body, it would inhibit the abnormal genes and cells expression, and then information of DNA and RNA would be reexpressed for arranging DNA and RNA abnormal state. As FIR's receptors in the body, it colud be presumed that N-glycosyl linkage of purine and deoxyribose, RNA splicing process, and heat shock protein.
A New Record of the Genus Ectopsocus McLachlan, 1899 (Psocodea: Ectopsocidae) from South Korea
김재윤,홍기정,이원훈,Jaeyun Kim,Ki-Jeong Hong,Wonhoon Lee Korean Society of Applied Entomology 2023 한국응용곤충학회지 Vol.62 No.2
The genus Ecopsocus is recorded from Korea for the first time with E. briggsi McLachlen, 1899. This species was collected on southern regions, Geoje-si, Jinju-si, Ulsan-si, and Jeju-do, in Korea. In this study, illustration of diagnostic characters of E. briggsi is provided.
COVID-19 팬데믹 상황에서 대학신입생의 회복탄력성: 자원 증진 프로그램의 개발
김재윤,이소영,박은영,마나,백준상,강민주,Kim, Jae Yoon,Lee, So Young,Park, Eunyoung,Mana, Mana,Baek, Joon Sang,Kang, Min Ju 대한가정학회 2022 Human Ecology Research(HER) Vol.60 No.2
Undergraduate freshmen are currently encountering numerous difficulties in adapting to college life due to the outbreak of the COVID-19 pandemic. Thus, several studies have underlined the need to develop interventions focused on undergraduate students' resilience during this situation. We adopted the service design method in identifying the difficulties faced by undergraduate freshmen during this pandemic, and also developed interventions for raising their resilience. The service design method is a person-centered approach which adopts the user's viewpoint in developing solutions, thereby enabling their requirements to be satisfied. Surveys and in-depth interviews revealed that undergraduate freshmen were experiencing psycho-emotional problems which were derived from schoolwork and college life. This is particularly the case with students who are experiencing greater levels of academic difficulty, and were insufficiently equipped with resources such as stress-coping strategies and social support. Four undergraduate freshmen were recruited online to test the effectiveness of a resource promotion program aimed at enhancing their resilience. This program has proved to be helpful in relieving daily/academic stress and in building relationships among freshmen, regarding which the participants showed a high level of satisfaction. The results were discussed by focusing on psycho-emotional difficulties and resources of college freshmen, as well as the effectiveness of the resource promotion program. Further research is required in order to verify the efficiency of the program and to confirm conclusions.
김재윤,강동명,안상욱,김광배,강인찬 ( Jae Yun Kim,Dong Myoung Kang,Sang Uk Ahn,Kwang Bae Kim,In Chan Kang ) 한국주조공학회 1991 한국주조공학회지 Vol.11 No.3
N/A The present study was conducted to estimate the fatigue crack growth rate of the Mo-Ni alloyed ductile cast iron for the influence of austempering temperature and time. The fatigue crack growth rate was affected by retained austenite. Retained austenite volume were higher with the ductile cast irons which were austempered at 360℃ than austempered at 260℃, and the fatigue crack growth rate of the former was lower than that of the latter. Also, the fatigue growth rate of the former was the lowest at austempering for 1hour and that of the latter was the lowest at austempering for 3hours.
원적외선이 자가면역성 관절염 흰쥐모델의 산화질소정량에 미치는 영향
김재윤,박규현,박영한,김진상,박래준,Kim Jae Yoon,Park Kyu Hyun,Park Young Han,Kim Jin-Sang,Park Rae Joon 대한물리치료학회 2002 대한물리치료학회지 Vol.14 No.2
OBJECTIVE: This study was Far infrared(FIR) irradiating to a rat collagen-induced autoimmune arthritis and observed nitric oxide level of spine. METHODS: Type II collagen(CII) in adjuvant was injected into rats on day 0. The results showed that rats injected with CII plus adjuvant had signs of autoimmune arthritis on day 14. Thereafter, Far infrared(FIR) irradiation was begun on day 15. The rats were irradiated FIR twice per day for 20 min each time. RESULTS: Seven days later(Day 22), the level of NO at FIR irradiated group(FRG; Arth+FIR) was decreased more than FIR-non irradiated group(FNRG; Arth). Twenty-one days later(Day 36), the level of NO at FRG was more closed to the control group's NO level than the FNRG. CONCLUSION: These results indicated that Far infrared irradiating appears to reduce the nitric oxide level at a rat model of autoimmune arthritis induced.
김재윤,박래준,Kim, Jae-Yoon,Park, Rae-Joon 대한물리치료학회 2001 대한물리치료학회지 Vol.13 No.3
Hershel found out Infrared for the first time, in the Industrial Revolution the Infrared and FlR had been begun to use making products. FIR with low temperature can deeply penetrate on the human body composed things without troublesome. since FIR has effectively operated on the human body at low temperature (35-40$^{\circ}$C). When FIR penetrated on the human body, it would inhibit the abnormal genes and cells expression, and then information of DNA and RNA would be reexpressed for arranging DNA and RNA abnormal state. As FIR's receptors in the body, it colud be presumed that N-glycosyl linkage of purine and deoxyribose, RNA splicing process. and Heat shock protein. To radiate optimized FIR, in this study, we made the FIR radiation compound and instrument for unharming biological things. According to the results, the FIR radiation to E. coli., it did not induce genetic mutations and change the survival rate of E.coli.
김재윤,박승규,김진상,박래준,Kim, Jae-Yoon,Park, Seung-Kyu,Kim, Jin-Sang,Park, Rae-Joon 대한물리치료학회 2001 대한물리치료학회지 Vol.13 No.3
IR classified by wavelength three parts NIR, MIR. FIR. There is FIR which is radiated from healthy human body the wave length is 8-14m. The Sun's ray is composed of Infared(49%), Visible light(40%) and Ultra violet(11%), however the ray getting to the earth is FIR(60%), IR(20%), and UV(20%). Human beings has utilized FIR already from time immemorial. Hershel found out Infrared for the first time, in the Industrial Revolution the Infrared and FIR had been begun to use making products. FIR with low temperature can deeply penetrate on the human body composed things without troublesome, since FIR has effectively operated on the human body at low temperature (35-40 $^{\circ}$C). In this study, we experimented in the specific temperature FlR radiation intensity. water consumption rate, feed consumption rate. survival rate and mean of weight balance with FlR radiation instrument. According to the results, the FlR radiation to the mice assisted to increase the survival rate.