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채널 등화기를 내장한 2.0GS/s 5비트 전류 모드 ADC 기반 수신기
문종호,정우철,김진태,권기원,전영현,전정훈,Moon, Jong-Ho,Jung, Woo-Chul,Kim, Jin-Tae,Kwon, Kee-Won,Jun, Young-Hyun,Chun, Jung-Hoon 대한전자공학회 2012 전자공학회논문지 Vol.50 No.8
본 논문에서는 고속 직렬 링크에 사용할 수 있는 5비트 2.0GS/s 2-way time interleaved 파이프라인 ADC 기반의 수신기를 소개한다. 샘플링 주파수를 높이기 위해, ADC 각 단은 트랙킹과 증폭이 동시에 수행되는 전류 모드 구조를 사용하였다. 또한 ADC 각단에 1-tap FIR 등화기를 탑재하여 별도의 디지털 후처리 없이 채널의 ISI를 감소시켰다. 제안한 수신기는 110nm 공정을 사용하여 설계하였다. 메모리를 제외한 수신기는 $0.58{\times}0.42mm^2$의 크기를 갖고, 동작전압 1.2V에서 91mW의 전력을 소모한다. 시뮬레이션 결과 2.0GS/s 샘플링 주파수에서 20MHz의 입력 주파수와 Nyquist 주파수인 1.0GHz 입력신호에 대하여 동일하게 26.0dB의 SNDR과 4.0비트의 ENOB특성을 확보하였다. In this paper, a 5-bit 2-GS/s 2-way time interleaved pipeline ADC for high-speed serial link receiver is demonstrated. Implemented as a current-mode amplifier, the stage ADC simultaneously processes the tracking and residue amplification to achieve higher sampling rate. In addition, each stage incorporates a built-in 1-tap FIR equalizer, reducing inter-symbol-interference (ISI)without an extra digital post-processing. The ADC is designed in a 110nm CMOS technology. It comsumes 91mW from a 1.2-V supply. The area excluding the memory block is $0.58{\times}0.42mm^2$. Simulation results show that when equalizer is enabled, the ADC achieves SNDR of 25.2dB and ENOB of 3.9bits at 2.0GS/s sample rate for a Nyquist input signal. When the equalizer is disengaged, SNDR is 26.0dB for 20MHz-1.0GHz input signal, and the ENOB of 4.0bits.
신체활동 자율동아리 참여가 초등학생의 기초체력과 사회성 발달에 미치는 영향
문종호(Moon Jong Ho),이동우(Lee Dong Woo) 한국초등체육학회 2020 한국초등체육학회지 Vol.25 No.4
본 연구는 신체활동 자율동아리 활동에 참여한 학생들의 기초체력과 사회성 발달에 미치는 영향에 대해 알아보는 데 연구 목적이 있다. 이를 위해 참여에 자발적으로 동의한 G광역시 초등학교 5-6학년 남학생 68명을 대상으로 자율동아 리 활동에 참여한 학생 34명과 활동에 참여하지 않은 학생 34명을 각각 실험집단과 통제집단으로 구성하여 연구 대상 자로 선정하였다. 신체활동 자율동아리 참여 실험 처치 전과 후에 각각 기초체력과 사회성을 측정하여 자료를 수집하 였다. 자료 분석은 집단 간 동질성 검증을 위한 독립표본 t-검정(independent two sample t-test)을 실시하였으며, 활동 참여가 미치는 효과를 분석하기 위해 사전, 사후 검사 측정값으로 대응표본 t-검증(paired sample t-test)를 실 시하였다. 자료 분석을 통해 도출된 결과는 신체활동 자율동아리 활동에 참여한 학생은 참여하지 않은 학생들에 비해 기초체력의 하위요인 중 심폐지구력, 근력, 순발력에서 유의한 향상을 보였으며, 사회성의 하위요인 중 사교성, 지배성, 자발성, 활동성에서 유의한 변화가 나타났다. 학생의 신체활동 기회 보장이 강조되는 최근 학교체육 정책에 비추어 본 연구 결과는 자율동아리 형태의 단위학교 자율 체육프로그램 조직과 실행의 필요성을 시사하는 데 그 의의가 있다. The purpose of this study is to investigate the effects of participation in a voluntary physical activity club on elementary school students’ basic physical fitness and social development. Sixty-eight fifth- and sixth-grade boys in G Metropolitan City voluntarily agreed to participate. Of these, thirty-four formed the experimental group, participating in a voluntary physical activity club, and the other thirty-four formed the control group and did not participate in club activities. Data were collected by measuring basic physical fitness and sociality both before and after the experimental treatment. For data analysis, independent two sample t-tests were conducted to verify homogeneity between groups, and paired sample t-tests were performed to examine the effects of participation in a voluntary physical activity club. The experimental group showed more significant improvement in the sub-components of basic physical fitness (cardiorespiratory endurance, muscle strength, and power) compared to the control group. They also showed more significant development in the sub-factors of sociality (sociability, dominance, autonomy, and activity) compared to the control group. In conclusion, the findings imply the benefits of implementing a physical activity program structured as a voluntary activity in promoting school based voluntary physical education programs.
간경변증 환자의 말초혈액단핵구에서 중합효소연쇄반응법을 이용한 Cytomegalovirus DNA 의 검출
문종호(Jong Ho Moon),유창범(Chang Beom Ryu),박철호(Cheol Ho Park),류권호(Kwon Ho Ryu),박찬욱(Chan Wook Park),이준성(Joon Sung Lee),이문성(Moon Sung Lee),조성원(Sung Won Cho),황승덕(Seung Deok Hwang),심찬섭(Chan Sup Shim),이희발(Hi Ba 대한내과학회 1995 대한내과학회지 Vol.49 No.6
N/A Objectives: Human cytomegalovirus(CMV) infections are common and usually asymptomatic, but fatal infections occur frequently in immunocompromised patients. In Korea, CMV infection is common and patients with liver cirrhosis are frequently in a condition of immunosuppression, may predispose to the frequent occurrence of CMV infections. The purpose of this study was to investigate the prevalence of CMV infection in patients with liver cirrhosis and to evaluate the relationship between the status of C3:IV infection and liver function. Methods, The subjects of this study were 36patients with liver cirrhosis, 4patients with non A, non B, non C(NANRNC) hepatitis, and 13normal controls. IgG and IgKI antibodies to CMV were measured using a microparticle enzyme immunoassay(MEIA). Specimens of urine were cultured for CMV using shell vial culture method. Peripheral blood mononuclear cells(PBMC) were investigated for the presence of CMV-DNA using PCR. Rusults: In CMU antibody test, IgM and IgG antibodies were detected in 7(19.4%) of 36patients with liver cirrhosis, IgG antibody was detected in the other 29patients and all control subjects. In shell vial culture, CMV was cultured in 1(2.8%) of 36patients with liver cirrhosis(IgM and IgG positive). CMV DNA was detected by PCR in 19(52.8%) of 36patients with liver cirrhosis, but 1(7.7%) of 13 control subjects (p<0.05). CMV DNA was detected in 6(85.7%) of 7cirrhotic patients with IgM and IgG antibodies positive, 13(44.8%) of 29cirrhotic patients with IgG antibody positive. CMV DNA positive cirrhotic patients show 5(26.3%) in Child A, 6(31.6%) in Child H, 8(42.1%) in Child C. CMV DNA negative cirrhotic patients show 4(23.5%) in Child A, 12(70.6%) in Child B, 1(5.9%) in Child C(p<0.05). CMV DY:A positive cirrhotic patients showed the tendency of more frequent detection of HBsAg and HBeAg than CMU DNA negative cirrhotic patients(p<0.05). Conclusion: These results suggest that CMV infection is common in cirrhotic patients and the CMV DNA positive patients with liver cirrhosis have more impairment of liver function than the CMV DNA negative patients with liver cirrhosis.
Cyclophosphamide와 Prednisolone 병합요법에 치료반응을 보인 다발성 근염에 동반된 간질성 폐질환
문종호 ( Jong Ho Moon ),박준영 ( Jun Young Park ),이상우 ( Sang Moo Lee ),김현태 ( Hyeon Tae Kim ),어수택 ( Soo Taek Uh ),정연태 ( Yeon Tae Chung ),김용훈 ( Yong Hoon Kim ),박춘식 ( Choon Sik Park ),이경수 ( Kyung Soo Lee ),강대영 대한결핵 및 호흡기학회 1993 Tuberculosis and Respiratory Diseases Vol.40 No.2
문종호 ( Jong Ho Moon ) 대한내과학회 2010 대한내과학회지 Vol.79 No.6
The diagnosis of hilar cholangiocarcinoma (CCA) is usually accomplished through a combination of imaging modalities and endoscopic examination including tissue sampling. Although high quality cross-sectional imagings provide evidences for hilar obstruction and a malignancy arising from the bile duct, a definitive diagnosis and staging often obtained through the use of endoscopic procedures. It can provide complementary information for accurate tumor extension and tissue acquisition for histologic confirmation. These informations are important in determining therapeutic options. However, despite the various available techniques, the diagnosis and accurate staging of hilar CCA is often still challenging. Newly developed adjunctive diagnostic endoscopic techniques including intraductal ultrasound and cholangioscopy improve the accuracy of endoscopic diagnosis of this lesion. Multiple endoscopic modalities can be tried to obtain accurate assessment of the tumor. Therefore, endoscopy will continue to occupy an important position in assessment of the hilar CCA. (Korean J Med 79:613-622, 2010)
유기템플레이팅 실리카막을 이용한 이성분 및 사성분 수소 분리
문종호(Moon, Jong-Ho),배지한(Bae, Ji-Han),정종태(Chung, Jong-Tae),이재욱(Lee, Jae-Wook),이창하(Lee, Chang-Ha) 한국신재생에너지학회 2007 한국신재생에너지학회 학술대회논문집 Vol.2007 No.06
The transport mechanisms of the MTES (methyltriethoxysilane) templating silica/a-alumina composite membrane were evaluated by using four binary and one quaternary hydrogen mixtures through permeation experiments at unsteady- and steady-states. Since the permeation flux in the MTES membrane, through the experimental and theoretical studies, was affected by molecular sieving effects as well as surface diffusion properties, the kinetic and equilibrium separation should be considered simultaneously according to molecular properties. In order to depict the transient multi-component permeation on the templating silica membrane, the GMS (generalized Maxwell-Stefan) and DGM (dust gas model) were adapted to unsteady-state material balance.