http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Phong Shading 알고리즘을 적용한 3차원 영상을 위한 고속 그래픽스 가속기 연구
박윤옥,박종원,Park, Youn-Ok,Park, Jong-Won 한국인터넷방송통신학회 2010 한국인터넷방송통신학회 논문지 Vol.10 No.5
2차원 그래픽을 3차원 그래픽으로 변환하기 위한 삼차원 그래픽 알고리즘들은 복잡하고 다양한 기법의 사용으로 인하여 대규모의 반복 연산이 요구되고, 이로 인하여 실시간 삼차원 그래픽의 처리가 어려운 경우가 많다. 본 논문은 삼차원 그래픽 처리와 관련된 여러 가지 알고리즘 중에서 Phong Shading 알고리즘의 병렬처리 방법과 고속 하드웨어 처리를 위한 삼차원 그래픽 가속기에 관한 것으로, Park's 다중접근 기억장치와 다수의 연산기로 구성된 SIMD처리기를 사용한 삼차원 그래픽 가속기 구조를 제안하고 있으며, 제안된 가속기 구조를 HDL을 사용한 시뮬레이션을 통해 본 논문에서 제안된 삼차원 그래픽 가속기에 의해 복잡한 알고리즘을 갖은 어떠한 삼차원 그래픽 알고리즘도 병렬 처리 알고리즘을 적용하여 SIMD 가속기에 의한 실시간 처리가 가능함을 보였다. There are many algorithms for 2D to 3D graphic conversion technology which have the high complexity and large scale of iterative computation. So in this paper propose parallel algorithm and high speed graphics accelerator architecture using Park's MAMS(Multiple Access Memory System) for Phong Shading, one of many 3D algorithms. The Proposed SIMD processor architecture is simulated by HDL and simulated and got 30 times faster result. It means any kinds of 3D algorithm can make parallel algorithm and accelerated by SIMD processor with Park's MAMS for real time processing.
Salivary Mucocele with Osseous Metaplasia in a Dog
PARK, Jin-Kyu,HAN, Jung-Youn,HONG, Il-Hwa,HWANG, Ok-Kyung,HONG, Kyung-Sook,JI, Ae-Ri,KI, Mi-Ran,PARK, Se-Il,KIM, Tae-Hwan,CHOI, Dong-Hag,JEONG, Kyu-Shik Japanese Society of Veterinary Science 2009 The Journal of veterinary medical science Vol.71 No.7
<P>A 4-year-old, male, dachshund was referred to a certain local veterinary hospital because of a soft and fluctuant swelling in the left upper cervical region. The swelling was surgically removed and appeared to be filled with bloody mucus. Grossly, the swelling was identified as salivary mucocele and showed small multifocal whitish ossified tissue on its surface. Microscopically, the wall of salivary mucocele appeared as granulation tissue surrounding mucin, which was composed of loose edematous and vascularized connective tissue containing chronic inflammatory cells such as lymphocytes, plasma cells and macrophages. Characteristically, present case had ossifying components formed by metaplastic spindle cells in the wall of salivary mucocele. Therefore, the present case was diagnosed as salivary mucocele with osseous metaplasia in a dog.</P>
Park, Hae-Kyung,Woo, So-Youn,Lee, Eun-Ok,Cha, Je-Eun,Lee, Ko-Eun,Park, Hae-Sook,Lee, Seung-Joo The Korean Society for Microbiology 2011 Journal of Bacteriology and Virology Vol.41 No.4
In infants, urinary tract infections (UTIs) are quite common and primarily caused by bacterial pathogens. However, little research has been conducted regarding the relationship between uropathogenic bacteria, virulent genes, and uropathogenic viruses that might induce UTIs in infants. In this study, we evaluated infants with UTIs to determine the influence of bacterial virulent genes and type of viral infections on clinical aspects. First, we detected 44 cases of bacterial UTI from 600 suspected cases in infants and children. We detected E. coli urovirulence genes (kps, usp, pap, ireA, and cnf), two enteropathogenic E. coli genes (bfpA, and eae) and four S. aureus and S. epidermidis genes (mecA, pvl, bbp, and icaA) in urine samples from infant UTI cases. We also simultaneously detected hematuria-related adenovirus type 11, 21, and BK virus (BKV) in urine samples by PCR. As a result, E. coli was the most prevalent bacteria and in Dimercaptosuccinic acid (DMSA)-positive UTI cases, the uropathogenic E. coli virulence factor pap was significantly high. We found that BKV detection was significantly higher in DMSA-positive UTI infants (89%) compared with 50% of non-UTI (no bacteria detected) cases. These results are indicative of combined multiple bacterial and viral infections and show severe infant pyelonephritis.
Adipsic hypernatremia associated with anomaly of corpus callosum
( Youn Jung Park ),( Min Young Lee ),( Yu Seon Yun ),( Young Ok Kim ),( Sun Ae Yoon ) 대한내과학회 2011 대한내과학회 추계학술대회 Vol.2011 No.1
Introduction: Adipsic hypernatremia is characterized by chronic and recurrent episodes of severe hypernatremia associated with a lack of thirst and often associated abnormal development of the midline structures of the proencephalon, including corpus callosum, septum pellucidum. We report a rare case of adipsic hypernatremia associated with congenital defect of the corpus callosum and mental retardation. Case report: We report a 31-year-old male patient presenting with asymptomatic hypernatremia. He had been previously diagnosed with inguinal hernia. He was visited to our hospital for inguinal hernia operation. Laboratory values were as follows: serum Na, 166 mEq/L; blood urea nitrogen(BUN) 20.1 mg/dL; creatinin(Cr) 1.39 mg/dL; Physical examination revealed an alert mental status with mental retardation. The patient was reffered to division of nephrology for evaluation of hypernatremia. On admission, serum Na 167 mEq/L, blood urea nitrogen(BUN) 23 mg/dL, creatinin(Cr) 1.36 mg/dL, serum osmolality 347mOsm/Kg, urine osmolarity 869mOsm/kg. but he did not report thirst, weakness, polyuria. His vital sign was stable including pulse pressure. On physical examination, body weight, height and sexual development were normal. A MRI scan of the brain demonstrated anomalous corpus callosum and non-visualized septum pellucidum. And sex hormone, combined pituitary function test were normal. A water deprivation test and water load test were comducted. Plasma arginine vasopressin (AVP) level was low, and neither stimulated by hyperosmolality nor suppressed by hypoosmolality. He was diagnosed a hypothalamic adipsic hypernatremia associated with corpus callosum defect. He was educated about the importance of water intake and we got him to drink more water. 1 month later, the follow-up serum Na, osmolality decreased gradually to 137mEq/L, 281mOsm/Kg. Conclusion: we report an unusual case that showed hypothalamic adipsic hypernatremia, congenital defect of corpus callosum and mental retardation. This case suggests hypothalamic adipsic hypernatremia must be suspected when a dehydrated patient denies thirst and that there is a need to hormone study and forced hydration in these patients including brain images.
Park, Hae-Kyung,Woo, So-Youn,Jung, Yun-Jae,Lee, Eun-Ok,Cha, Je-Eun,Park, Hye-Sook,Lee, Seung-Joo The Korean Society for Microbiology 2008 Journal of Bacteriology and Virology Vol.38 No.4
While methicillin-resistant Staphylococcus aureus (MRSA) isolated from urinary tract infection (UTI) has recently increased in elderly adult urology patients, it has been only rarely reported in infants. Therefore, in this study to understand whether MRSA may be involved in UTI of infants who run fever without other apparent causes, we identified and counted S. aureus and S. epidermidis in suprapubic urine from 750 febrile infants via microbiological methods, and confirmed the counts via multiplex PCR. And we also detected four virulence genes, mecA, PVL, bbp and icaA genes for S. aureus and S. epidermidis via multiplex PCR in the same specimens. S. aureus (28 cases) counts were as follows: $>10^4\;CFU/ml$ (3/28), $10^2{\sim}10^3\;CFU/ml$ (1/28) and $<10^2{\sim}10^3\;CFU/ml$ (24/28). S. epidermidis (26 cases) counts were as follows: $>10^4\;CFU/ml$ (2/26), $10^2{\sim}10^3\;CFU/ml$ (4/26) and $10^2{\sim}10^3\;CFU/ml$ (20/26). S. aureus virulence genes were detected in 26 cases as mecA (16/26, 59.3%), PVL (17/26, 63.0%), bbp (7/26, 26.9%) and icaA (20/26, 76.9%). S. epidermidis virulence genes were detected in 22 cases as mecA (17/22, 81.0%), PVL (15/22, 71.4%), bbp (3/22,13.6%) and icaA (13/22, 50.1%). Therefore, mecA, PVL and icaA genes of MRSA and MRSE were detected with high positivity in urines from infants with fever. The results demonstrate that community-acquired MRSA or MRSE may be responsible for UTI incidence in febrile infants.
Park, Wan Beom,Cho, Joo-Youn,Park, Sang-In,Kim, Eun Jung,Yoon, Seonghae,Yoon, Seo Hyun,Lee, Jeong-Ok,Koh, Youngil,Song, Kyoung-Ho,Choe, Pyoeng Gyun,Yu, Kyung-Sang,Kim, Eu suk,Bang, Su Mi,Kim, Nam Joon Elsevier 2016 INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS Vol.48 No.1
<P><B>Abstract</B></P> <P>Few data are available on whether adjusting the dose of posaconazole syrup is effective in patients receiving anti-cancer chemotherapy. The aim of this prospective study was to analyse the impact of increasing the frequency of posaconazole administration on optimal plasma concentrations in adult patients with haematological malignancy. A total of 133 adult patients receiving chemotherapy for acute myeloid leukaemia or myelodysplastic syndrome who received posaconazole syrup 200 mg three times daily for fungal prophylaxis were enrolled in this study. Drug trough levels were measured by liquid chromatography–tandem mass spectrometry. In 20.2% of patients (23/114) the steady-state concentration of posaconazole was suboptimal (<500 ng/mL) on Day 8. In these patients, the frequency of posaconazole administration was increased to 200 mg four times daily. On Day 15, the median posaconazole concentration was significantly increased from 368 ng/mL [interquartile range (IQR), 247–403 ng/mL] to 548 ng/mL (IQR, 424–887 ng/mL) (<I>P</I> = 0.0003). The median increase in posaconazole concentration was 251 ng/mL (IQR, 93–517 ng/mL). Among the patients with initially suboptimal levels, 79% achieved the optimal level unless the steady-state level was <200 ng/mL. This study shows that increasing the administration frequency of posaconazole syrup is effective for achieving optimal levels in patients with haematological malignancy undergoing chemotherapy.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Increasing the frequency of posaconazole syrup is effective for adjusting drug levels. </LI> <LI> Optimal drug levels are not achieved when steady-state level is <200 ng/mL. </LI> <LI> In only 5.3% (6/114), drug levels remained suboptimal despite dose adjustment. </LI> </UL> </P>
Park, Hun-Jun,Jung, Hae Ok,Min, Jinsoo,Park, Mahn Won,Park, Chan Seok,Shin, Dong Il,Shin, Woo-Seung,Kim, Pum Joon,Youn, Ho-Joong,Seung, Ki-Bae Foundation for Advances in Medicine and Science [e 2011 Clinical cardiology Vol.34 No.2
<P>Combined interpretation of late diastolic mitral annulus velocity (A') with left atrial volume index (LAVi) may have additional benefits in the assessment of diastolic dysfunction.</P>