http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
임형래,박솔,조병록,Lim, Hyung-Rae,Park, Sol,Cho, Byung-Lok 한국정보처리학회 1999 정보처리논문지 Vol.6 No.2
본 논문에서는 양방향 LMDS(LOcal Multipoint distribution Services)의 역방향 채널에 CDMA(Code division Multiple Access)를 적용하기 위한 CDMA 역방향 채널구조로 시분할 다중화된 파일롯을 각 사용자마다 할당받아서 동기복조를 하는 방식을 제안한다. 제안한 방식은 역방향 CDMA 채널에서 파일롯 채널을 이용한 동기방식의 변복조를 적용하여 비동기 방식에 의한 성능열화를 개선함과 동시에 파일롯 채널에 의한 간섭량을 최소로 줄인다. CDMA 역방향 채널에 동기를 위한 파일롯을 사용하면 파일롯에 의해 간섭이 증가하고 채널용량이 감소하기 때문에 파일롯의 간섭량을 최소로 줄이는 것이 상당히 중요하다. 파일롯을 사용하지 않는 비동기 방식과 연속된 파일롯을 사용하는 동기방식과 제안한 방식의 세 가지 역방향 채널 방식에 대해 비교, 분석하였다. 그 결과 제안된 파일롯 채널이 다른 두 경우에 비해 상당한 용량의 증가를 보이는 것을 확인하였다. In this paper, we propose the method using coherent detection with time division multiple pilot signal for each users I reverse CDMA channel as the structure of reverse CDMA channel to apply CDMA to upstream channel of bidirectional LMDS. By using coherent detection with pilot signal in reverse CDMA channel, capacity can be improved when compared with noncoherent detection, but it is required to allocate pilot signal for all user. And then interference is increased due to allocate continuously the pilot signals. In this case channel capacity is decreased. The method f pilot allocation is needed that reduce this interference and keep synchronization effect using coherent detection, In the reverse link, the pilot allocated to each users at different time and not overlapped is possible solution for it. this pilot is proposed and analyzed its performance and capacity. The result is that proposed method has more increased capacity compared wit others.
임형래(Lim Hyung Rae),조병록(Cho Byung Lok) 한국정보처리학회 1999 정보처리학회논문지 Vol.6 No.2
In this paper, we propose the method using coherent detection with time division multiple pilot signal for each users in reverse CDMA channel as the structure of reverse CDMA channel to apply CDMA to upstream channel of bidirectional LMDS. By using coherent detection with pilot signal in reverse CDMA channel, capacity can be improved when compared with noncoherent detection, but it is required to allocate pilot signal for all user. And then interference is increased due to allocate continuously the pilot signals. In this case channel capacity is decreased. The method of pilot allocation is needed that reduce this interference and keep synchronization effect using coherent detection. In the reverse link, the pilot allocated to each users at different time and not overlapped is possible solution for it. This pilot is proposed and analyzed its performance and capacity. The result is that proposed method has more increased capacity compared with others.
진춘조,박형석,조화상,유광하,유종길,이경영,임형래,이순일 대한소화기학회 1998 대한소화기학회지 Vol.32 No.1
Cystic disease of the liver is observed with increasing frequency because of the common use of computed tomography and ultrasonography. Hepatic cyst does not present particular symptoms. However, depending on its size and location, symptoms like abdominal distension, or pressure effects on adjacent organs including bile ducts causing intermittent jaundice could appear. Patients with hepatic cyst usually show no elevation of liver enzyme, bilirubin, or liver function tests. Jaundice usually can occur in the patients when the cyst becomes large enough to cause exrtahepatic blocking of bile duct. We receotly experienced a 57-year old female complaining of generalized pruritus, which was diagnosed as non-parasitic liver cyst with obstructive jaundice. The diagnosis was confirmed by abdominal US, CT, ERCP and operation. Unroofing of hepatic cyst was performed, and 3 months later, she was asyrnptomatic and total bilirubin was normalized. We report this case with a review of the relevant literatures.
신부전이 동반된 신실질의 Malakoplakia 1 예
김경수,이현순,이순일,유태석,조화상,조영일,전혜정,유종길,임형래,허원만,유광하 대한내과학회 1996 대한내과학회지 Vol.51 No.6
Malakoplakia is a rare chronic granulomatous disease generally confined to the urinary bladder, but occasionally occuring in other tissue. Since the initial case of Michaelis-Gutmann in 1902, about 200 cases have been reproted. Among these cases, renal parenchymal malakoplakia accounts for only 16M. It is most common in middle-aged females with chronic urinary tract infection. The pathogenesis of malakoplakia is unclear, but defective killing and impaired digestion of phagocytosed bacteria as a result of a low GMP/AMP ratio is believed to contribute to its pathogenesis, Improperly digested bacteria becomes mineralized, leading to the formation of the pathognomonic Michaelis-Gutmann bodies. Renal parenchymal malakoplakia is very rare, and occurs bilateral in about 50% of the cases. Although conservative medical management with an intracellularly active antibiotics, ascorbic acid and a cholinergic agonist has been recommended for unilateral renal malakoplakia, nephrectomy has been advocated as the treatment of choice. Bilateral renal malakoplakia behaves as a progressive, destructive, and fatal disease, and little is known about the satisfactory treatment for it. We experienced a case of renal parenchymal malakoplakia with renal insufficiency in a 66-year-old man. He was admitted for surgery of anal prolapse. On preoperative evaluation, azotemia, pyuria, and an enlarged right kidney were incidentally detected. A percutaneous renal biopsy was performed and the specimen showed the characteristic Michaelis Gutmann bodies, After long-term therapy with antibiotics, renal function was recovered partially, pyuria disappeared and the enlarged kidney decreased in size. Herein, we report this case with a review of the literatures.
김현준,김석,이순일,유태석,조영일,허원만,유종길,왕준호,임형래,이승철,송종오 대한내과학회 1997 대한내과학회지 Vol.53 No.1
We present a case of a 19-year-old male with portal vein gas embolism resulting from accidental ingestion of 35% hydrogen peroxide. Hydrogen peroxide is a commonly used germicidal cleansing agent. When it is applied to tissues, catalase causes its rapid molecular decomposition with the release of oxygen bubbles. The patient recovered without sequelae. Hyperbaric oxygenation may be of benefit in patients with respiratory compromise or central nervous system symptoms from gas embolism in hydrogen peroxide ingestion.