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강현구 영남이공대학 1987 論文集 Vol.16 No.-
This paher shows a polyphonic key-switching in electronic musical instruments by means of key-assigning method. Key-assigner carried out the polyphonic sound generation successfully with Z-80A cpu and M112 tone-generator through developed program. This system can be used electronic musical instruments and adapted to other applications such as MIDI or automatic musical performances.
황체낭종우에서 Dinoprost 또는 Fenprostalene 치료에 대한 난소 및 낭종의 반응
강현구,김일화,백인석,손창호,이청산 한국임상수의학회 2004 한국임상수의학회지 Vol.21 No.2
This study was carried out to monitor the response of ovaries and cyst according to treatment with dinoprost or fenprostalene in dairy cows with ovarian luteal cyst. Twenty cows were diagnosed as luteal cysts by rectal palpation, ultrasonography and progesterone analysis. The cystic cows were treated with dinoprost or fenprostalene. All the animals were re-examined by ultrasonography and blood was collected for the measurement of plasma progesterone concentration at day 0 (the day of treatment), 3, 13 and 24, respectively. Mean plasma progesterone concentrations on day -11 and day -1 before treatment were 2.10.2 ng/ml and 2.80.3 ng/ml, respectively. On day 3 and day 13 were 0.3 0.1 ng/ml and 4.30.2 ng/ml, respectively. Mean cystic wall thickness on day -11 and day -1 were 3.20.2 mm and 3.90.2 mm, respectively. And on day 3 was 2.40.3 mm. The responses of luteal cyst after treatment noted during ultrasonography included dramatical degeneration of the luteal tissue of cystic wall on day 3 (all cows), slowly reduction of cyst size (cyst resolution) until last examination (8 cows), complete disappearance on day 13 (7 cows) and no changes of cyst size (5 cows). A group of 10 cows with luteal cysts injected fenprostalene compared with another 10 cows treated dinoprost showed a slightly higher pregnancy rate on first service after initial treatment (50.0 vs 30.0%). But treatment effects of dinoprost or fenprostalene did not significantly different results for each groups. This study suggested that the response of the cyst according to treatment revealed various types. Therefore, veterinarians should have attention on monitoring of the response of cystic ovaries after treatment, specially on no change of cyst size after treatment.
강현구 湖西大學校 國語國文學科 1996 湖西語文硏究 Vol.4 No.1
90년대에 들어와 급격히 진행된 사회주의의 몰락은 큰 세계사적 변환이었으며, 충격적 사건이었다. 특히 반공이데올로기가 여전히 사회적 역학관계의 중요한 바로미터가 되는 한국사회의 경우, 그 반응이 남달리 격렬했음은 주지의 사실이다.
Re-establishment of occlusal plane in a patient with a failed implant prosthesis
강현구,고경호,허윤혁,조리라,박찬진,Kang, Hyeon-Goo,Ko, Kyung-Ho,Huh, Yoon-Hyuk,Cho, Lee-Ra,Park, Chan-Jin The Korean Academy of Prosthodonitics 2018 대한치과보철학회지 Vol.56 No.2
계속적인 치아의 상실과 마모 및 보철물의 실패로 초래된 생리적이지 못한 교합평면은 비심미성, 저작 효율의 감소 및 교합 간섭와 같은 기능적인 문제을 야기할 수 있다. 따라서, 무치악 환자나 교합 평면이 붕괴된 환자의 보철 치료 시, 저작 기능과 조화로운 교합평면의 설정이 중요하다. 본 증례의 환자는 완전 무치악 상태인 상악을 임플란트 고정성 보철물로 수복하였다. 6년 경과 관찰 시, 기존 임플란트 보철물의 도재 파절, 마모, 나사풀림과 같은 기계적 합병증이 관찰되었고, 대합하는 전치의 마모 및 정출과 일부 구치부 치아의 상실로 인해 교합평면이 붕괴된 상태였다. 진단 과정을 거쳐 무치악 부위의 추가적인 임플란트 식립과 보철물의 재제작 및 모든 잔존 치아의 수복을 통해 전악구강회복을 시행하였다. A non-physiological occlusal plane caused by continuous tooth loss, occlusal wear, and failure of a prosthesis may result in an unattractive appearance and functional problems, such as reduced masticatory efficiency and occlusal interference. Therefore, when undertaking prosthetic treatment for edentulous patients or patients with a collapsed occlusal plane, it is important to establish an occlusal plane that is compatible with masticatory function. The patient in this case report had undergone restoration of a completely edentulous maxilla using an implant-supported fixed prosthesis. On follow-up examination in the following 6 years, mechanical complications were observed in the existing implant prosthesis, including porcelain chipping, occlusal wear, and screw loosening. Moreover, due to occlusal wear and supraeruption of the opposing anterior teeth, as well as loss of some posterior teeth, the occlusal plane had collapsed. Following diagnosis, the patient underwent full mouth rehabilitation, involving additional implant installation in edentulous sites, recreation of the existing prosthesis, and prosthetic restoration of all remaining teeth.
지능장애를 동반한 근긴장성 이양증 환자에서 보인 앞쪽 측두엽 백질의 병변
강현구,정주리,이학승,장혁 圓光大學校 醫科學硏究所 2008 圓光醫科學 Vol.23 No.1
In myotonic dystrophy(MD), a characteristic myopathy is accompanied by abnormalities of other systems, including the brain. The pathogenesis of MD has not been clearly explained. Sometimes white matter lesion was noted on brain MRI, but its causative roles and association with intellectual impairment in MD was not clea yet. We report a case of myotonic dystrophy with intellectual impairment and temporal white matter lesions.
InGaN UV bare칩을 이용한 $CaAl_{12}O_{19}:Mn^{4+}$ 형광체의 적색 발광다이오드 제조
강현구,박정규,김창해,최승철,Kang, Hyun-Goo,Park, Joung-Kyu,Kim, Chang-Hae,Choi, Seung-Chul 한국마이크로전자및패키징학회 2007 마이크로전자 및 패키징학회지 Vol.14 No.4
A $CaAl_{12}O_{19}:Mn^{4+}$ red phosphor showed the highest emission intensity at a concentration of 0.02mole $Mn^{4+}$ and the high crystallinity and luminescent properties were obtained at $1600^{\circ}C$ firing temperature for 3hr. The synthesized phosphor showed a broad emission band at 658nm wavelength. Red light-emitting diodes(LEDs) were fabricated through the integration of on InGaN UV bare chip and a 1:3 ratio of $CaAl_{12}O_{19}:Mn^{4+}$ and epoxy resin in a single package. This coated LED can be applicable to make White LEDs under excitation energy of UV LED. [ $CaAl_{12}O_{19}:Mn^{4+}$ ] 적색 형광체는 $Mn^{4+}$이온이 0.02 mol 첨가되었을 때 최대 발광 세기가 관찰되었고 $1600^{\circ}C$, 3시간 소성조건에서 우수한 결정성과 발광 효율을 나타내며 중심 파장이 658 nm에서 관찰되었다. 본 연구에서 개발된 $CaAl_{12}O_{19}:Mn^{4+}$ 형광체를 에폭시와 함께 1:3으로 혼합하여서 InGaN UV 발광체의 Bare 칩 위에 코팅하여 중심파장이 658 nm인 적색 LED를 제조하였다. 적색 형광체를 이용하여, 기존의 UV LED를 여기 광원으로 다양한 느낌의 백색 발광체를 설계 할 수 있을 것이다.
姜賢求 홍익대학교 동북아기업경영연구소 2004 企業經營硏究 Vol.1 No.-
This paper was written to understand the characteristic of economical policy which the 4th generation leaders of China had by watching historical tasks, actual problems and solutions ,had been made in Hujintao era, on a extended line of the long period development plan.
강현구,김성환,어기준,장영규,이수호,윤창노,최민수,김진상,조원경 경희대학교 경희정보통신 SoC연구소 2010 경희정보통신SOC연구소 논문집 Vol.11 No.-
반도체 산업은 1958년 세계 첫 IC가 개발된 이후로 현재까지 꾸준한 집적기술의 발달을 바탕으로 SSI, MSI, LSI 시대를 거쳐 VLSI시대에 이르렀다. 하지만 그 설계 또한 복잡해져감에 따라 기존의 FULL CUSTOM ASIC방식에 비해 SEMI CUSTOM ASIC, Programmable ASIC 방식의 필요성이 커지게 되었다. 본 논문에서는 SEMI CUSTOM 방식을 이용하여 선형 위상 특성을 갖는 FIR 디지털 필터를 설계하였다. optimal design method를 이용하여 필터의 성능을 향상시켰으며 학사과정에서 배운 verilog-HDL, Logic Synthesis과정에서 더 나아가 Astro Tool을 이용한 P&R과정까지 진행하여 SOC설계 전반에 대한 이해를 높일 수 있도록 하였다.