RCS/ISAR를 이용한 레이다 표적분석 기법 및 소프트웨어 개발

권경일,유지희,정명수,윤태환,Kwon Kyoung-IL,Yoo Ji-Hee,Chung Myung-Soo,Yoon Taehwan 한국군사과학기술학회 2004 한국군사과학기술학회지 Vol.7 No.2

A development of a software on radar target signature analysis is presented in this paper The target signature includes Radar Cross Section(RCS) prediction, Range Profile(RP) processing and Inverse Synthetic Aperture Radar(ISAR) processing. Physical Optics(PO) is the basic calculation method for RCS prediction and Geometrical Optics(GO) is used for ray tracing in the field calculation of multiple reflection. For RP and ISAR, Fast Fourier Transform(FFT) and Matrix Pencil(MP) method were implemented for post-processing. Those results are integrated into two separate softwares named as Radar Target Signature Generator(RTSG) and Radar Target Signature Analyser(RTSA). Several test results show good performances in radar signature prediction and analysis.

급성 과두 걸림의 치료에서 퍼티 고무 인상재로 제작한 임시 전방위치장치의 적용

송지희,김지현,권정승,안형준,Song, Ji-Hee,Kim, Ji-Hyun,Kwon, Jeong-Seung,Ahn, Hyung-Joon 대한안면통증구강내과학회 2012 Journal of Oral Medicine and Pain Vol.37 No.4

Disc dislocation without reduction, as known as closed lock, is a clinical condition in which the disc is dislocated from the condyle and does not return to normal position during condylar movement When the condition of disc dislocation without reduction is acute, the initial therapy should include an attempt to reduce or recapture the disc by manual manipulation. When patients report a history of being locked for 1 week or less, manual manipulation is usually successful. In patients with a longer history, success rate tends to decrease rapidly. If the disc has been successfully recaptured, placing an anterior positioning appliance is recommended to prevent clenching on the posterior teeth, which would likely redislocated the disc. But it is hard to make an appliance immediately in the clinic because it takes too much time. And making an appliance using self-curing acrylic resin is not very popular because of its discomfort by odor and working time. Also, if the patient has resin allergy or is under orthodontic treatment, or if it is impossible to control behavior of the patient, it has been restricted to make an appliance immediately. Therefore, to supplement this disadvantages, we tried to confirm about successful short term use of temporary anterior positioning splint made by using putty impression material after manual manipulation in this study. 폐구성 과두 걸림이라고도 하는 비정복성 관절원판변위는 관절원판이 과두로부터 전위되어 과두 운동 시에 정상위치로 되돌아가지 않는 임상상태를 말한다. 비정복성 관절원판변위가 급성으로 나타난 경우에는 초기 치료에서 수조작에 의한 관절원판의 정복을 시도하여야 한다. 일반적으로 과두 걸림 발생 후 1주일 이내에 수조작술을 시행하는 경우에는 대개 성공적으로 관절원판이 정복되는 경우가 많지만 그 이상 경과된 경우에는 성공률이 떨어지는 것으로 알려져 있다. 수조작술을 통해 관절원판의 정복이 일어난 이후에는 전방위치 교합장치를 즉시 장착시켜서 폐구성 과두 걸림이 다시 발생하지 않도록 하는 것이 좋다. 하지만 전방위치장치를 제작하는데 시간이 많이 소요되므로 임상에서 즉시 제작하여 장착하기는 현실적으로 어려운 경우가 많다. 또한 전방위치장치를 제작하기 전까지 자가 중합 아크릴릭 레진을 이용한 임시 전방위치 장치를 제작하여 사용하는 방법도 레진의 냄새로 인한 불편감 및 시간 소요 등으로 널리 이용되고 있지는 않다. 또한 레진 알러지가 있거나 교정 치료 중이어서 레진을 사용하기 어려운 경우, 또는 행동조절이 불가능한 일부 환자들에게는 이 장치를 적용하기 어렵다. 따라서, 수조작술을 통해 관절원판이 정복된 경우 레진 대신 퍼티 고무 인상재를 이용하여 임시 전방장치를 제작한 후 단기간 적용하여 폐구성 과두 걸림을 치료한 증례를 통해 그 효용성을 확인해 보고자 하였다.

SAR 영상을 이용한 템플릿 매칭 기반 자동식별 알고리즘 구현 및 성능시험

임호,채대영,유지희,권경일,Lim, Ho,Chae, Daeyoung,Yoo, Ji Hee,Kwon, Kyung-Il 한국군사과학기술학회 2014 한국군사과학기술학회지 Vol.17 No.3

In this paper, we have developed a target recognition algorithm based on a template matching technique using Synthetic Aperture Radar (SAR) images. For efficient computations, Radon transform-based azimuth estimation algorithm was used with the template matching. MSTAR data set was divided into two groups according to the depression angles, which were a train set and a test set. Template data were generated by rotating and cropping chips which were from MSTAR train set using the azimuth estimation algorithm. Then the template matching process between test data and template data was performed under various conditions. Performance variation according to contrast enhancement preprocessing which is scarce in open literature was also presented. The analysis results show that the target recognition algorithm could be useful for the automatic target recognition using SAR images.

Super Rabbit: 고전 게임을 응용한 모바일 게임

배현진 ( Bae Hyunjin ),권지희 ( Kwon Ji-hee ),양근아 ( Yang Geun-a ),오신혜 ( Oh Shinhye ),홍지원 ( Hong Jiwon ),노웅기 ( Loh Woong-kee ) 한국정보처리학회 2013 한국정보처리학회 학술대회논문집 Vol.20 No.2

Super Rabbit 게임은 고전 게임의 양식을 가지고 현대 사회의 유아들에게 흥미를 유발시킬 수 있는 귀엽고 다양한 캐릭터와 간단한 게임 방법을 이용하여 개발한다. 고전게임 특유의 간단한 조작방법과 짧은 여가 시간 내에 성공할 수 있는 게임을 개발하는 것이 본 연구의 목적이다.

천식동물모델에서 디젤분진이 기도과민성과 개형에 미치는 효과

김영은 ( Young Eun Kim ),권지희 ( Ji Hee Kwon ),이신화 ( Shin Hwa Lee ),임태연 ( Tai Youn Rhim ),이영목 ( Young Mok Lee ),박춘식 ( Choon Sik Park ),송현미 ( Hyun Mi Song ),장안수 ( An Soo Jang ),안미현 ( Mi Hyun Ahn ) 대한천식알레르기학회 2006 천식 및 알레르기 Vol.26 No.1

Background: Epidemiologic and clinical investigations have suggested a strong link between particulate air pollution and asthma. The purpose of this study was to evaluate an effects of air pollutants on a murine asthma model, focusing on diesel exhaust particles (DEP). Method: The Balb/c mice were sensitized intra-perito-neally (i.p.) with ovalbumin (OVA) at days 0 and 14 and challenged intranasally with OVA at days 21, 22, and 23 (group I). The Balb/c mice were sensitized i.p. with OVA at day 0, 14 and challenged with 6 mg/10 mL of DEP at days 21, 22, and 23 (group II). Group III were sensitized with OVA at days 0 and 14, together with 0.6 mg/50 uL of DEP every other day for 14 days and challenged with 150 ug /100 uL OVA and 6 mg/10 mL of DEP at day 21, 22, and 23. Saline sensitized-challenged mice were served as sham control. The mice were subjected to whole-body plethysmo-graphy and then killed for bronchoalveolar lavage and histology. Cytokines were measured by ELISA. Expression of goblet cell hyperplasia and smooth muscle hyperplasia in the lung tissue was detected by immunohistochemical staining. Result: DEP and OVA sensitized-challenge group had a significant increase in methacholine-induced AHR, compared to sham group and group I. The levels of IL-4, IL-5, and IFN-γ tended to increase in the BAL fluid in group III. Goblet cell hyperplasia and smooth muscle hypertrophy were more observed in group III than those in sham group, groups I and II. Conclusion: This study demonstrates that DEP may aggravate airway responsiveness and remodeling in a mouse asthma model. (Korean J Asthma Allergy Clin Immunol 2006;26:70-77)

사료용 옥수수 신품종 '양안옥'의 생육특성 및 수량성

손범영,백성범,김정태,이진석,구자환,김선림,정건호,권영업,지희정,허창석,박종열,Son, Beom Young,Baek, Seong Bum,Kim, Jung Tae,Lee, Jin Seok,Ku, Ja Hwan,Kim, Sun Lim,Jung, Gun Ho,Kwon, Young Up,Ji, Hee Jung,Huh, Chang Suk,Park, Jong Yeol 한국초지조사료학회 2013 한국초지조사료학회지 Vol.33 No.2

양안옥은 다수성 사료용 옥수수 품종 개발을 목표로 2012년에 농촌진흥청 국립식량과학원에서 자식계통 KS164과 KS163을 교잡하여 육성한 다수성 단교잡종이다. 양안옥의 종피색은 황오렌지색이며 입질은 중간종이다. 양안옥은 2007~2008년 동안 생산력검정시험을 거쳐, 2009~2012년까지 3년간 4지역에서 지역적응시험을 실시하였다. 그 결과 우수성이 인정되어 2012 농작물 직무육성 신품종으로 결정되었고 양안옥으로 명명하였다. 양안옥의 출사일수는 대비 품종인 광평옥보다 2일 빠르다. 간장은 광평옥과 유의한 차이는 없으나 착수고율은 광평옥보다 높고 도복은 광평옥과 비슷한 정도로 강하며 후기녹체성과 이삭비율도 광평옥과 유의한 차이는 없다. 양안옥의 깨씨무늬병은 광평옥과 비슷한 중강의 저항성을 보이며, 그을음무늬병도 광평옥과 같이 강한 편이다. 검은줄오갈병, 이삭썩음병 및 조명나방도 광평옥과 같이 중 정도의 저항성을 보인다. 양안옥의 건물수량은 17.45 톤/ha이며, TDN수량은 11.96 톤/ha로 광평옥과 유의한 차이는 없었다. 양안옥의 종실수량은 8.32 톤/ha로 장다옥과 유의한 차이는 없었다. 4 : 1 (모본 : 부본) 재식비율로 동시 파종하여 채종 시험한 결과 모본의 출사기와 부본의 화분비산기간이 일치하며 채종수량은 1.79 톤/ha이었다. 양안옥은 전국적으로 재배가 가능하다. Yanganok, a new single cross variety, was developed by the maize breeding team at the National Institute of Crop Science (NICS), RDA in 2012. This hybrid, which has a high yield of grain was produced by crossing two inbred lines, KS164 and KS163. KS164 is the seed parent and KS163 is the pollen parent of Yanganok. It is a yellow-orange intermediate maize hybrid (Zea mays L.). After a preliminary yield trial and advanced yield trial of Yanganok (Suwon180) in Suwon for 2 years, a regional yield trial was carried out for its growth characteristics, and yields were determined at 4 different locations from 2009 to 2012, with the exception of 2010. It was named 'Yanganok'. The silking date of Yanganok is 2 days earlier than that of the check hybrid, Kwangpyeongok. Plant height of Yanganok is similar to Kwangpyeongok, but its ear height ratio is higher than that of Kwangpyeongok. It has resistance to lodging. Stay-green features of Yanganok are similar to those of Kwangpyeongok. The ear ratio of Yanganok is similar to Kwangpyeongok. It has moderate resistance to southern leaf blight (Bipolaris maydis) and strong resistance to northern leaf blight (Exserohilum turcicum). It has moderate resistance to black streaked dwarf virus (BSDV), ear lot and corn borer. The dry matter yield of Yanganok, 17.45 ton/ha, was similar to that of Kwangpyeongok. The total digestible nutrients (TDN) yield of Yanganok, 11.96 ton/ha, was similar to that of Kwangpyeongok. The grain yield of Yanganok, 8.32 ton/ha was similar to that of Jangdaok. Seed production of Yanganok went well due to a good match during crossing between the seed parent, KS164, and the pollen parent, KS163, in Yeongwol, and F1 seed yield was 1.79 ton/ha. Yanganok would be a suitable cultivar to all plain areas in the Korean peninsula.

세드롤과 콜라겐 유래 펩타이드의 피부노화 개선효과

류종성 ( Jong Seong Ryu ),조환일 ( Hwan Il Cho ),원지희 ( Ji Hee Won ),전미나 ( Mi Na Jeon ),권오선 ( Oh Sun Kwon ),원보미 ( Bo Mi Won ),임준만 ( Jun Man Lim ),이상화 ( Sang Hwa Lee ) 대한화장품학회 2015 대한화장품학회지 Vol.41 No.3

피부 노화는 피부 표면에 나타나는 현상으로 피부 표면의 미세구조와 연관이 있다. 피부 미세구조의 변화는 주름형성, 피부 톤 저하 등 다양한 피부 노화 현상을 유발하는 요인이 된다. 본 연구는 주름 기능성 성분인 세드롤(Cedrol)과 콜라겐 유래 펩타이드 성분을 이용하여 시험관 수준(in vitro)에서 타입Ⅲ 콜라겐 합성 시너지 효과를 평가하였다. 여성 피시험자를 대상으로 4주 동안 상기 원료가 함유된 크림제품을 사용한 후 피부 미세 구조, 스타 형상(star configurations), 보습, 탄력, 피부 밝기, 윤기, 피부 톤, 투명도를 평가하였다. 시험관 수준의 세드롤과 펩타이드를 동시에 처리하면 우수한 수준의 타입Ⅲ 콜라겐 합성 시너지효과를 나타내었다. 그리고 크림제형을 이용한 인체적용 시험에서는 사용 4주 후부터 피부 미세구조, 스타형상, 윤기, 피부 톤, 보습, 탄력을 개선시켰으나, 피부 밝기 개선 효능은 나타나지 않았다. 본 연구를 통하여 기존 주름 기능성 성분인 세드롤과 콜라겐 유래 펩타이드는 세포 수준에서 타입Ⅲ 콜라겐 합성 시너지 효과가 있음을 확인하였고 이를 화장품에 적용하여 시험한 결과 피부 노화 개선에 도움을 주는 성분임을 확인하였다. Skin aging is the phenomena finally expressed on the skin surface and related to the changes in the microstructure of the skin texture. Which is resulted in wrinkle formation and uneven tone of skin and so on. In this study, the synergy effect of Cedrol and a collagen-derived peptide in type Ⅲ collagen synthesis was evaluated by in vitro test. The physiological skin state of 22 female volunteers was measured after using the cosmetics for 4 weeks. Results showed that Cedrol and a collagen-derived peptide had the excellent synergy effect in type Ⅲ collagen synthesis. The cosmetics improved skin microrelief, star configurations, skin gloss, skin tone, hydration and elasticity except skin lightening. In conclusion, this study proved that Cedrol and collagen-derived peptide had the synergy effect of type Ⅲ collagen synthesis in the cell level and cosmetics with those was improved skin aging in human volunteer test.

내도복 단교잡 사료용 옥수수 신품종 ‘청다옥’

손범영(Beom-Young Son),백성범(Seong-Bum Baek),김정태(Jung-Tae Kim),이진석(Jin-Seok Lee),김선림(Wook-Han Kim),정건호(Jae-Hwan Roh),김욱한(Sun-Lim Kim),노재환(Gun-Ho Jung),권영업(Young-Up Kwon),지희정(Hee-Jung Ji),허창석(Chang-Suk Huh) 한국육종학회 2014 한국육종학회지 Vol.46 No.2

Cheongdaok, a new single maize (Zea mays L.) variety, was developed by the maize breeding team at the National Institute of Crop Science (NICS), RDA in 2010. This high-yielding hybrid was produced by crossing two inbred lines, KS159 and KS155. KS159 is the seed parent and KS155 is the pollen parent of Cheongdaok. It is a yellow dent maize hybrid. After the preliminary yield trial and advanced yield trial of Cheongdaok in Suwon for two years, the regional yield trial was subsequently carried out for evaluation of its growth characteristics and yield at four different locations from 2008 to 2010. The silking date of Cheongdaok is one day earlier than that of the check hybrid, Kwangpyeongok. Compared to Kwangpyeongok, Cheongdaok show short in plant height and low in ear height ratio. It has resistance to lodging. The stay-green degree and the ear ratio of Cheongdaok are similar to Kwangpyeongok. It has moderate resistance to southern leaf blight (Bipolaris maydis) and strong resistance to northern leaf blight (Exserohilum turcicum). It has moderate resistance to black streaked dwarf virus(BSDV), ear lot, and corn borer. The dry matter yield 20.24 ton/ha and the total digestible nutrient (TDN) yield (13.80 ton/ha) of Cheongdaok were similar to Kwangpyeongok. The grain yield (8.51 ton/ha) of Cheongdaok was higher than that of Jangdaok. The seed production of Cheongdaok was well processed due to a good synchronization of flowering period during crossing between the seed parent KS159 and the pollen parent KS155, and the F1 seed yield was 1.8 ton/ha in Yeongwol.