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Search Results: 1 - 10 of 21851 matches for " Myo Jeong Kim "
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Diagnostic Radiation Exposure of Injury Patients in the Emergency Department: A Cross-Sectional Large Scaled Study
Je Sung You, Hye-Jeong Lee, Yong Eun Chung, Hye Sun Lee, Myo Jeong Kim, Sung Phil Chung, Myeong-Jin Kim, Incheol Park, Ki Whang Kim
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0084870
Abstract: In contrast to patients with underlying cancer or chronic disease, injury patients are relatively young, and can be expected to live their natural lifespan if injuries are appropriately treated. Multiple and repeated diagnostic scans might be performed in these patients during admission. Nevertheless, radiation exposure in injury patients has been overlooked and underestimated because of the emergent nature of such situations. Therefore, we tried to assess the cumulative effective dose (cED) of injury patients in the emergency department. We included patients who visited the emergency department (ED) of a single tertiary hospital due to injury between February 2010 and February 2011. The cED for each patient was calculated and compared across age, sex and injury mechanism. A total of 11,676 visits (mean age: 28.0 years, M:F = 6,677:4,999) were identified. Although CT consisted of only 7.8% of total radiologic examinations (n=78,025), it accounted for 87.1% of the total cED. The mean cED per visit was 2.6 mSv. A significant difference in the cED among injury mechanisms was seen (p<0.001) and patients with traffic accidents and fall down injuries showed relatively high cED values. Hence, to reduce the cED of injury patients, an age-, sex- and injury mechanism-specific dose reduction strategy should be considered.
Adaptive Parallel Computation for Blind Source Separation with Systolic Architecture  [PDF]
Intelligent Information Management (IIM) , 2010, DOI: 10.4236/iim.2010.21006
Abstract: The purpose of Blind Source Separation (BSS) is to obtain separated sources from convolutive mixture inputs. Among the various available BSS methods, Independent Component Analysis (ICA) is one of the representative methods. Its key idea is to repetitively update and calculate the measures. However, dealing with the measures obtained from multi-array sensors causes obstacles for real-time use. In order to solve this problem, it is necessary to convert the software implementation of BSS algorithm into the hardware architecture. Through the use of hardware architecture, the BSS algorithm can efficiently work within a relatively short time. In this study, we investigate a practical method using a parallel algorithm and architecture for hardware use in a blind source separation. We design a feedback network for real-time speech signal processing. The network is composed of forward and updates algorithms. The architecture of the network is systolic and therefore it is suitable for parallel processing. We only have to add and connect modules for scaling. This paper covers the process from the systolic design of BSS to the hardware implementation using Xilinx FPGAs. The simulation results of our proposed implementation are also represented in the experimental section. In that section, our architecture returns satisfying results with robust qualities.
Performance Measurement for Construction CALS Application of Ubiquitous Technology Using the Process Chart Method  [PDF]
Tae Hak Kim, Seong Yun Jeong
Open Journal of Social Sciences (JSS) , 2013, DOI: 10.4236/jss.2013.15002
Abstract: From the industrial field that spearheaded IT created new added values and markets, and with the fusion of the traditional industry composition, researches are actively being conducted to steer advancement. The application possibility of the high-tech IT technique in the construction industry is increasing. Therefore, when a technique similar to this ubiquitous technique is applied to the Construction CALS system, the effectiveness of the business transaction is augmented, and a business that could reduce the various needed expenses is predicted. In this research, the exhibition features developed and detailed the features of the Construction CALS system to measure the effectiveness of the development so as to prove the validity of the Process Chart using techniques with detailed exhibition features, and will want to conduct quantitative performance measurement.
Physicochemical Properties and Fibrinolytic Activity of Ginseng Powder Fermented with Bacillus subtilis Isolated from Cheonggukjang  [PDF]
Jiyun Jeong, Youngkyoung Rhee, Sungsoo Kim
American Journal of Plant Sciences (AJPS) , 2017, DOI: 10.4236/ajps.2017.88126
Abstract: In order to obtain all the properties of fermented ginseng, we fermented ginseng using Bacillus subtilis (B. subtilis) isolated from Cheonggukjang. A sterilized ginseng medium was made with 4-year-old ginseng powder and distilled water (300% ginseng powder [w/w]), and the ginseng was fermented by B. subtilis (1% ginseng medium) followed by incubation at 37°C for 3, 5, 7, and 10 days. The growth of B. subtilis in the ginseng medium significantly increased up to 9 log CFU/g, but no significant difference was observed after 3 days. As the fermentation progressed, the ginsenoside Rd and Rg+Rh1 contents increased by 255.3% - 322.5% and 165.6% - 228.6%, respectively, whereas the Rc, Re, and Rg1 contents decreased by 30.7% - 39.6%, 10.5% - 12.8%, and 16.2
A mixing dynamical system on the cantor set
Jeong H. Kim
International Journal of Mathematics and Mathematical Sciences , 1995, DOI: 10.1155/s0161171295000767
Abstract: In this paper we give mixing properties (ergodic, weak-mixng and strong-mixing) to a dynamical system on the Cantor set by showing that the one-sided (12,12)-shift map is isomorphic to a measure preserving transformation defined on the Cantor set
Taxonomic Review of the Genus Euodynerus (Hymenoptera: Vespidae: Eumeninae) in the Korean Peninsula
Jeong-Kyu Kim
Animal Systematics, Evolution and Diversity , 2012, DOI: http://dx.doi.org/10.5635/ased.2012.28.3.161
Abstract: Korean species of the genus Euodynerus Dalla Torre were taxonomically reviewed. Four species were confirmed: E. trilobus, E. dantici violaceipennis, E. nipanicus nipanicus, and E. quadrifasciatus atripes. The specimens previously identified as E. dantici brachyotomus and E. notatus pubescence form North Korea were re-examined, and corrected to E. dantici violaceipennis and E. nipanicus nipanicus, respectively. Euodynerus quadrifasciatus atripes was re-described for future researchers. After careful reading previous descriptions, Euodynerus seuli Radoszkowski was tentatively supposed to be conspecific with E. nipanicus.
Evolution to a Renowned
Jeong Tae Kim
Archives of Plastic Surgery , 2012, DOI: http://dx.doi.org/10.5999/aps.2012.39.1.1
ttˉ $tar t$ pair production cross section measurement at the LHC
Kim Tae Jeong
EPJ Web of Conferences , 2012, DOI: 10.1051/epjconf/20122805002
Abstract: Measurement of ttˉ $tar t$ pair production cross sections with an integrated luminosity of around 1 fb 1 at √s = 7 TeV obtained with the ATLAS and CMS detectors are reported. The inclusive cross sections in dilepton (ee, eμ, μμ and μτ), lepton+jets (e, μ) and all hadronic decay modes are measured. In addition to inclusive cross section measurement, the study of jet multiplicity with additional jets are also presented, which is important to constrain the initial state radiation. Measurement of the charge asymmetry at the LHC is also presented. All measurements are compatible with Standard Model predictions.
Tsallis entropy and entanglement constraints in multi-qubit systems
Jeong San Kim
Physics , 2009, DOI: 10.1103/PhysRevA.81.062328
Abstract: We show that the restricted sharability and distribution of multi-qubit entanglement can be characterized by Tsallis-$q$ entropy. We first provide a class of bipartite entanglement measures named Tsallis-$q$ entanglement, and provide its analytic formula in two-qubit systems for $1 \leq q \leq 4$. For $2 \leq q \leq 3$, we show a monogamy inequality of multi-qubit entanglement in terms of Tsallis-$q$ entanglement, and we also provide a polygamy inequality using Tsallis-$q$ entropy for $1 \leq q \leq 2$ and $3 \leq q \leq 4$.
Polygamy of Entanglement in Multipartite Quantum Systems
Jeong San Kim
Physics , 2009, DOI: 10.1103/PhysRevA.80.022302
Abstract: We show that bipartite entanglement distribution (or entanglement of assistance) in multipartite quantum systems is by nature polygamous. We first provide an analytic upper bound for the concurrence of assistance in bipartite quantum systems, and derive a polygamy inequality of multipartite entanglement in arbitrary dimensional quantum systems.
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