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김연수(Y . S . Kim),이중건(J . G . Lee),정윤철(Y . C . Jung),이진학(J . H . Lee),최영진(Y . J . Choi),안규리(C . Ahn),한진석(J . S . Han),김성권(S . Kim),김병국(B . K . Kim),이정상(J . S . Lee),이현순(H . S . Lee) 대한내과학회 1994 대한내과학회지 Vol.46 No.2
Castlemam's disease is an asymptomatic and benign lymph node hyperplasia which is frequently manifested as mediastinal mass in over 70% of cases. Amyloidosis is rarely associated with Castleman's disease. Recently we experienced a patient with nephrotic syndrome due to renal amyloidosis who had been previously diagnosed as Castleman's disease of retroperitoneal lymph node enlargement. A 47-year old woman was admitted because of generalized edema and chest tightness. Five months ago she diagnosed as Castlman's disease-plasma cell type, of retroperitoneal lymph node enlargement. The patient was followed up through outpatient department without any specific medication. Physical examination showed pale conjunctivae, palpable mass on epigastric area and pretibial pitting edema. The hemoglobin, leukocyte count and erythrocyte sedimentation rate were 96 g/L, 5.9×109/L and 127 mm/hour, respectively. The blood urea nitogen was 3.6 mmol/L and creatinine was 88 umol/L. The urinalysis showed 3 positive for albumin. Twentyfour hour urine contained 16.6 grams of protein. A computerized tomographic (CT) scan of the abdomen disclosed multiple lymph node enlargement at mesentery. Percutaneous needle biopsy of kidney showed massive infiltration of pale pinkish amorphous material in the glomerular tuft forming large nodules. Ultrastructural examination exhibited heavy deposition of amyloid fibrils in the mesangium and perpendicular to glomerular basement membrane. Polarizing microscopy with Congo-red stain revealed prominent yellow green birefringence in glomeruli, tubules and interstitium.
신동맥분지협착에 의한 신혈관성고혈압 예에서 캅토프릴투여후 99mTc - DMSA 신 스캔
양원석(W . S . Yang),김연수(Y . S . Kim),엄재호(J . H . Earm),김상은(S . E . Kim),이동수(D . S . Lee),한진석(J . S . Han),정준기(J . K . Chung),김성권(S . K . Kim),이명철(M . C . Lee),이정상(J . S . Lee),고창순(C . S . Koh) 대한핵의학회 1990 핵의학 분자영상 Vol.24 No.2
N/A Radionuclide renal scintigraphies were performed in a 24-year-old man with right renal artery branch stenosis. Captopril enhanced Tc-99m-DTPA renal scintigraphy revealed no abnormal finding in the right kidney But, Tc-99m-DMSA renal scintigraphy showed regional cortical photon deficient area corresponding to the area supplied by the stenotic branch artery. The defect size increased in captopril enhanced Tc-99m-DMSA renal scintigrphy and nearly disappeared after successful transluminal renal angioplasty. This case suggests that the captopril enhanced Tc-99m- DMSA renal scintigraphy may be a useful method in the evaluation of renovascular hypertension, especially due to branch renal srtery stenosis.
이정상(J. S. Lee),김종암(C. Kim),노오현(O. H. Rho) 한국전산유체공학회 2003 한국전산유체공학회지 Vol.8 No.2
In this work, we propose a new idea of flapping airfoil design for optimal aerodynamic performance from detailed computational investigations of flow physics. Generally, flapping motion which is combined with pitching and plunging motion of airfoil, leads to complex flow features such as leading edge separation and vortex street. As it is well known, the mechanism of thrust generation of flapping airfoil is based on inverse Karman-vortex street. This vortex street induces jet-like flow field at the rear region of trailing edge and then generates thrust. The leading edge separation vortex can also play an important role with its aerodynamic performances. The flapping airfoil introduces an alternative propulsive way instead of the current inefficient propulsive system such as a propeller in the low Reynolds number flow. Thrust coefficient and propulsive efficiency are the two major parameters in the design of flapping airfoil as propulsive system. Through numerous computations, we found the specific physical flow phenomenon which governed the aerodynamic characteristics in flapping airfoil. Based on this physical insight, we could come up with a new kind of airfoil of tadpole-shaped and more enhanced aerodynamic performance.
문성옥(S.M. Moon),이정상(J.S. Lee),김종암(C. Kim),노오현(O.H. Rho),홍승규(S.K. Hong) 한국전산유체공학회 2001 한국전산유체공학회 학술대회논문집 Vol.2001 No.-
An evaluation of one zero-equation and two one-equation eddy viscosity-transport turbulence closure models as implemented CFDS(Characteristic Flux Difference Splitting) code is presented herein. Comparisons of Baldwin-Lomax model as zero-equation and Baldwin-Barth and Spalart-Allmaras model as one-equation are presented for three test cases, first involving the 3 dimensional supersonic flow at M=1.98 over tangent ogive cylinder, second involving the 2 dimensional transonic flow at M=0.79 over RAE 2822 airfoil, third involving the 3 dimensional transonic flow at M =0.84 over ONERA M6 wing. The numerical results of CFDS code will also examined through direct comparison with experimental data.
진호준(H . J . Chin),안규리(K . L . Ahn),오국환(K . H . Oh),오윤규(Y . K . Oh),김연수(Y . S . Kim),한진석(J . S . Han),김성권(S . K . Kim),이정상(J . S . Lee) 대한내과학회 1997 대한내과학회지 Vol.52 No.4
It has been known that most patients with Korean Hemorrhagic Fever (KHF) were recovered without any significant renal complication. But several cases of renal hypertension, chronic pyelonephritis, and chronic renal failure after KHF have been reported. Recently, we experienced one case of chronic pyelonephritis as a sequela of KHF, which has been diagnosed at the 78th month of illness. This case showed reduced thickness of renal parenchyme, small and irregular shaped kidney, focal loss of normal cupping of calyces, and accumulation of radiacontrast media at distal calyes by IVP. This case suggested that chronic pyelonephritis may develop as a sequela of KHF,