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The Performance of Small Wind Power Generation Systems on Super High-rise Buildings
박설희,Jeong-Ha Park,박진철,이은택 한국강구조학회 2014 International Journal of Steel Structures Vol.14 No.3
This study was conducted on the application of small wind power generation systems to super high-rise buildings. Environmental factors considered in the application of small wind power generation systems to super high-rise buildings arethe wind speed, wind direction, maximum instantaneous wind speed, air flow turbulence, and noise and vibration in the targetregions and buildings. According to the results of fluid dynamics (CFD) simulations, square or rectangular shaped super highrisebuildings create turbulent air flows occurred uniformly on roofs and the sides of entire buildings, from the lowest floorto the highest. High wind speeds occurred on the sides of buildings. Few turbulent beds occurred in the case of round ortriangular shaped super high-rise buildings indicating that round and triangular shapes in plan are advantageous for theapplication of wind power systems. Electric power generation was measured in mock-up tests. When they were installed in arow, small wind power generation systems met the standards for noise and vibration from continuous rotation indicating thatthey would cause little damage to buildings through their noise and vibration.
박설희,정혜선,이미애 대한진단검사의학회 2015 Annals of Laboratory Medicine Vol.35 No.2
Coagulase-negative staphylococci (CoNS) are reported to be the leading cause of nosocomial bloodstream infections. Staphylococcus pettenkoferi is a novel member of CoNS that was first isolated from the human blood and bursitis wound in 2002. We have reported cases of 6 S. pettenkoferi strains isolated from blood specimens, including one pathogen and 5 contaminants and catheter colonizers. Brucker Biotyper (Brucker Daltonics, Bremen, Germany) and molecular typing with 16S rRNA gene sequencing confirmed the 6 isolates as S. pettenkoferi. The conventional phenotypic identification of these isolates is not reliable owing to their inconsistent biochemical characteristics. Five of the 6 isolates were found to be resistant to oxacillin, and all isolates showed susceptibility to vancomycin and linezolid. For accurate identification of this novel species, advanced methods by using Brucker Biotyper or molecular methods such as 16S rRNA gene sequencing are required.
박설희,정태동,홍기숙,허정원 대한진단검사의학회 2019 Laboratory Medicine Online Vol.9 No.2
Incidentally, hemoglobin (Hb) variants can be detected using HbA1c tests in clinical laboratories. We found 38 patients with Hb variants after reviewing a total of 29,398 HbA1c test results from January 2017 to December 2017. While reviewing the complete blood count results of the patients (N=36) using the Sysmex XN-9000 analyzer (Sysmex, Japan), 35 patients were flagged as unremarkable with respect to differential white blood cell (WBC) counts. However, 1 patient with a normal WBC count did not obtain a differential WBC count while being flagged for an abnormal WBC scattergram in the white blood cell differential (WDF) channel. The WBC histogram showed an abnormally low fluorescent signal in the WDF channel; however, the differential WBC count was normal upon microscopic examination. After testing the patient's buffy coat suspended in normal saline and removing red blood cells (RBCs), the WBC scattergram and differential WBC count returned to normal. This finding suggests that the presence of a patient's RBCs may affect WBC scattergrams and Hb variants may interfere with the fluorescent dye in the differential WBC count. Therefore, when an abnormal WBC scattergram with an abnormally low fluorescent signal is encountered on the Sysmex XN-9000 analyzer, the presence of an Hb variant can be suspected.
박설희,문영철,성주명,허정원 대한진단검사의학회 2020 Laboratory Medicine Online Vol.10 No.4
Emergence of new clonal chromosomal abnormality (CCA) has been reported in Philadelphia-negative cells in patients with chronic myeloid leukemia (CML) undergoing the tyrosine kinase inhibitor (TKI) treatment. However, the time of emergence and clinical significance of CCA remains to be elucidated. In this study, we report a CML patient undergoing TKI treatment who developed myelodysplastic syndrome (MDS) after 206 months since the diagnosis of CML. Results of droplet digital PCR performed with serial bone marrow samples revealed that monosomy 7 in Philadelphia-negative cells appeared at the time of MDS development that did not exist initially at the time of CML diagnosis.