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마이크로프로쎄서를 利用한 直流分捲發電機의 無負荷特性 測程에 關한 硏究
李興浩,盧泰天 충남대학교 공업교육연구소 1981 論文集 Vol.4 No.2
This paper provides experimental results, obtained by using a microprocessor kit, from the no-load characteristics of the dc shunt generator. Although there are some errors in the experimental resuls because of limitations of A/D converter, it is considered that this study will be useful for the characteristic measurements of electric machines.
Kim, Jeong-Ah,Kim, Won-keun,No, Jin Sun,Lee, Seung-Ho,Lee, Sook-Young,Kim, Ji Hye,Kho, Jeong Hoon,Lee, Daesang,Song, Dong Hyun,Gu, Se Hun,Jeong, Seong Tae,Park, Man-Seong,Kim, Heung-Chul,Klein, Terry Public Library of Science 2016 PLoS neglected tropical diseases Vol.10 No.6
<▼1><P><B>Background</B></P><P>Hantaan virus (HTNV), a negative sense tripartite RNA virus of the Family <I>Bunyaviridae</I>, is the most prevalent hantavirus in the Republic of Korea (ROK). It is the causative agent of Hemorrhagic Fever with Renal Syndrome (HFRS) in humans and maintained in the striped field mouse, <I>Apodemus agrarius</I>, the primary zoonotic host. Clinical HFRS cases have been reported commonly in HFRS-endemic areas of Gyeonggi province. Recently, the death of a member of the ROK military from Gangwon province due to HFRS prompted an investigation of the epidemiology and distribution of hantaviruses in Gangwon and Gyeonggi provinces that border the demilitarized zone separating North and South Korea.</P><P><B>Methodology and Principal Findings</B></P><P>To elucidate the geographic distribution and molecular diversity of HTNV, whole genome sequences of HTNV Large (L), Medium (M), and Small (S) segments were acquired from lung tissues of <I>A</I>. <I>agrarius</I> captured from 2003–2014. Consistent with the clinical incidence of HFRS established by the Korea Centers for Disease Control & Prevention (KCDC), the prevalence of HTNV in naturally infected mice in Gangwon province was lower than for Gyeonggi province. Whole genomic sequences of 34 HTNV strains were identified and a phylogenetic analysis showed geographic diversity of the virus in the limited areas. Reassortment analysis first suggested an occurrence of genetic exchange of HTNV genomes in nature, ROK.</P><P><B>Conclusion/Significance</B></P><P>This study is the first report to demonstrate the molecular prevalence of HTNV in Gangwon province. Whole genome sequencing of HTNV showed well-supported geographic lineages and the molecular diversity in the northern region of ROK due to a natural reassortment of HTNV genomes. These observations contribute to a better understanding of the genetic diversity and molecular evolution of hantaviruses. Also, the full-length of HTNV tripartite genomes will provide a database for phylogeographic analysis of spatial and temporal outbreaks of hantavirus infection.</P></▼1><▼2><P><B>Author Summary</B></P><P>Hemorrhagic Fever with Renal Syndrome (HFRS) and Hantavirus Pulmonary Syndrome (HPS) are endemic zoonotic infectious diseases caused by hantaviruses that belong to the Family <I>Bunyaviridae</I> containing negative-sense tripartite RNA genomes. Hantaviruses pose a critical emerging public health threat, with up to 200,000 clinical cases reported annually worldwide with 1–36% case fatality rates. In humans, hantavirus-borne diseases are contracted by the inhalation of viruses aerosolized from rodent excreta. However, there is no effective therapeutic or vaccine to prevent from the disease. Whole genome sequences of Hantaan virus (HTNV) were acquired from lung tissues of <I>Apodemus agrarius</I> captured in HFRS-endemic areas of the Republic of Korea (ROK). Phylogenetic analyses demonstrated that sequences of the HTNV tripartite genomes clustered geographically, showing broad diversity of HTNV throughout the areas surveyed. Reassortment analysis first suggested a natural occurrence of the HTNV genetic exchange in the ROK. These observations contribute to a better understanding of the genetic diversity and molecular evolution of hantaviruses in HFRS-endemic regions. The complete sequences of HTNV genomes will provide a database for the phylogeographic analysis and surveillance of endemic hantavirus-borne diseases.</P></▼2>
전화상담 추후관리가 체외충격파 쇄석술 환자의 치료지시이행에 미치는 영향
노흥진,이영숙,권혜진 중앙대학교 의과대학 간호학과 간호과학연구소 2003 중앙간호논문집 Vol.7 No.2
The purpose of this study was to identify the effect of telephone call follow-up on the compliance for the patients with extra coporeal shock wave lithotripsy and then to use it as the basic data of nursing intervention to progress the compliance and care satisfaction in the outpatient procedures. The research design was a nonequivalent control group post-test design. The data were collected from May 21 to September 15, 2003. The data was analyzed using descriptive statistics, x^2-test, t-test, one-way ANOVA. The results of this study were as follows ; 1. It was accepted that the experimental group who received the telephone call follow-up will have a higher level of the compliance than the control group who did not receive the telephone call follow-up. 2. It was accepted that the experimental group who received the telephone call follow-up will have a higher level of the care satisfaction than the control group who did not receive the telephone call follow-up. The care satisfaction was divided and analyzed into the two areas with caring subscale and teaching subscale. The results show that the experimental group in both areas have a higher level of the care satis- faction than the control group especially there is all the difference between the experimental group and the control group in the teaching subscale rather than in the caring subscale. The telephone call follow-up increases the compliance and the care satisfaction, and the above findings show that the telephone call follow-up is the effective nursing intervention plan to increase the care satisfaction for the teaching subscale of, especially, the outpatient procedures.
Dry Electrode-Based Fully Isolated EEG/fNIRS Hybrid Brain-Monitoring System
Lee, Seungchan,Shin, Younghak,Kumar, Anil,Kim, Minhee,Lee, Heung-No IEEE 2019 IEEE Transactions on Biomedical Engineering Vol.66 No.4
<P>A portable hybrid brain monitoring system is proposed to perform simultaneous 16-channel electroencephalogram (EEG) and 8-channel functional near-infrared spectroscopy (fNIRS) measurements. Architecture-optimized analog frontend integrated circuits (Texas Instruments ADS1299 and ADS8688A) were used to simultaneously achieve 24-bit EEG resolution and reliable latency-less (<;0.85 μs) bio-optical measurements. Suppression of the noise and crosstalk generated by the digital circuit components and flashing NIR light sources was maximized through linear regulator-based fully isolated circuit design. Gel-less EEG measurements were enabled by using spring-loaded dry electrodes. Several evaluations were carried out by conducting an EEG phantom test and an arterial occlusion experiment. An alpha rhythm detection test (eye-closing task) and a mental arithmetic experiment (cumulative subtraction task) were conducted to determine whether the system is applicable to human subject studies. The evaluation results show that the proposed system is sufficiently capable of detecting microvoltage EEG signals and hemodynamic responses. The results of the studies on human subjects enabled us to verify that the proposed system is able to detect task-related EEG spectral features such as eye-closed event-related synchronization and mental-arithmetic event-related desynchronization in the alpha and beta rhythm ranges. An analysis of the fNIRS measurements with an arithmetic operation task also revealed a decreasing trend in oxyhemoglobin concentration.</P>
Depth-estimation-enabled compound eyes
Lee, Woong-Bi,Lee, Heung-No Elsevier 2018 OPTICS COMMUNICATIONS - Vol.412 No.-
<P><B>Abstract</B></P> <P>Most animals that have compound eyes determine object distances by using monocular cues, especially motion parallax. In artificial compound eye imaging systems inspired by natural compound eyes, object depths are typically estimated by measuring optic flow; however, this requires mechanical movement of the compound eyes or additional acquisition time. In this paper, we propose a method for estimating object depths in a monocular compound eye imaging system based on the computational compound eye (COMPU-EYE) framework. In the COMPU-EYE system, acceptance angles are considerably larger than interommatidial angles, causing overlap between the ommatidial receptive fields. In the proposed depth estimation technique, the disparities between these receptive fields are used to determine object distances. We demonstrate that the proposed depth estimation technique can estimate the distances of multiple objects.</P>