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낮은 턴온전압과 높은 방출 전류밀도를 가지는 수평형 전계방출 소자제작 및 전기적인 특성
이종현,서화일,권대혁,함성호,이명복,최규만,이재훈,이정희 경북대학교 전자기술연구소 2001 電子技術硏究誌 Vol.22 No.2
A lateral type poly-Si field emission device was fabricated by utilizing the LOCOS process. The fabricated device exhibited excellent electrical characteristics such as a very low turn-on voltage of 1 V and a high emission current of 64 μA/tip at the anode-to-cathode voltage of 13 V. These superior field emission characteristics was believed as a result of strong surface modification inducing a quasi-negative electron affinity and the increase of field emitting area due to local sharp protrusions by an appropriate activation treatment.
Effects on the Qualities of Proteolysis to Beef by Non-coating and Coating Protease Treatment
Kwang Il Kim,Sang Yoon Lee,Soo Jin Kim,Jae Hee Seo,Joong Kyu Lee,Jung Kue Shin,Hyung Yong Cho,Mi Jung Choi 한국축산식품학회 2016 한국축산식품학회지 Vol.36 No.1
This study was performed to improve the techniques used for tenderizing red meat as elderly food. Beef meat was immersed in liposome encapsulated enzyme solution and the effect of protease encapsulation on the beef properties was analyzed. The protease encapsulation properties were analyzed according to the size distribution and enzymatic activity. After enzyme reaction on the beef, the chemical properties of the meat such as pH, water holding capacity, shear rate, lipid oxidation and total volatile basic nitrogen (TVB-N) were analyzed. The pH of the beef increased during the reaction and coating protease (CP) was higher than non-coating protease (NCP). Total color differences were increased remarkably after 36 h and generally, the difference in CP was relatively lower than in NCP. WHC was significantly decreased within 24 h, and no effect from the protease coating was observed. Protease activity was significantly increased within 48 h and no differences in the enzyme coating were observed. The TVB-N value of NCP was increased within 24 h while CP was sustained for up to 36 h. The TVB-N value of protease treated meat increased after 36 h and no effect from the protease coating was detected. Consequently, liposome encapsulated protease was found to have similar properties as non-coated protease. Application of liposome seems to be an interesting option for injecting various functional materials without changing the properties of meat.
Effects on the Qualities of Proteolysis to Beef by Non-coating and Coating Protease Treatment
Kim, Kwang-Il,Lee, Sang-Yoon,Kim, Soo-Jin,Seo, Jae-Hee,Lee, Joong-Kyu,Shin, Jung-Kue,Cho, Hyung-Yong,Choi, Mi-Jung Korean Society for Food Science of Animal Resource 2016 한국축산식품학회지 Vol.36 No.1
This study was performed to improve the techniques used for tenderizing red meat as elderly food. Beef meat was immersed in liposome encapsulated enzyme solution and the effect of protease encapsulation on the beef properties was analyzed. The protease encapsulation properties were analyzed according to the size distribution and enzymatic activity. After enzyme reaction on the beef, the chemical properties of the meat such as pH, water holding capacity, shear rate, lipid oxidation and total volatile basic nitrogen (TVB-N) were analyzed. The pH of the beef increased during the reaction and coating protease (CP) was higher than non-coating protease (NCP). Total color differences were increased remarkably after 36 h and generally, the difference in CP was relatively lower than in NCP. WHC was significantly decreased within 24 h, and no effect from the protease coating was observed. Protease activity was significantly increased within 48 h and no differences in the enzyme coating were observed. The TVB-N value of NCP was increased within 24 h while CP was sustained for up to 36 h. The TVB-N value of protease treated meat increased after 36 h and no effect from the protease coating was detected. Consequently, liposome encapsulated protease was found to have similar properties as non-coated protease. Application of liposome seems to be an interesting option for injecting various functional materials without changing the properties of meat.
이선경 ( Seon Kyoung Lee ),노현경 ( Hyon Kyung Rho ),강규현 ( Kue Hyun Kang ),지정석 ( Jung Suk Jee ),김상용 ( Sang Yong Kim ),조태일 ( Tae Il Joe ),윤귀옥 ( Gui Okh Yoon ) 대한주산의학회 2007 Perinatology Vol.18 No.3
Heterotopic pregnancy with coexistiong intrauterine and extrauterine pregnancy, is a rare event in natural pregnancy. However, in recent years, the increase in the incidence of pelvic inflammatory disease and use of assisted reproductive technology had led to an increase in the frequency of heterotopic pregnancy. When the diagnosis of heterotopic pregnancy is delayed, maternal mortality and morbidity may be increased, and unwanted loss of intrauterine pregnancy may occur. Therefore, the early diagnosis of heterotopic pregnancy is clinically important, and clinicians have to consider the possibility of heterotopic pregnancy and conduct careful and thorough evaluation if suspected. We experienced a case of heterotopic pregnancy in a woman in the absence of the known risk factors. She underwent underwent spontaneous abortion of intrauterine pregnancy at postoperative 4th day, after laparoscopic salpingectomy for left tubal pregnancy. We report this case with brief review of literature.
AUC 변환공정에서 발생된 폐액으로부터 유가물질의 회수에 관한 연구
정경채,이규일,이동규 ( Kyung Chai Jeong,Kue Il Lee,Dong Kyu Lee ) 충북대학교 산업과학기술연구소 1996 산업과학기술연구 논문집 Vol.10 No.2
Abstract_Roman In this study, the methods for reeovery of uranium and fluorine which is useful element in wastes from AUC conversion plant were investigated. To recovery or treatment of a trace uranium in liquid waste, the AUC filtrates must be heated fo