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SCF를 이용한 시간지연 회로의 설계 및 제작기술 개발
황준원,박종연,장목순 江原大學校 産業技術硏究所 1996 産業技術硏究 Vol.16 No.-
This paper deals with the tapped time delay circuit with SCF(Swiched Capacitor Filters). This filter is composed fo lossless discrete integrator and the SCF has 2-phase clocks. Experimental results have shown that telephone signals (0~4kHz) could be delayed in the range of sampling frequency 80kHz.But above the range, operational amplifiers and analog switchs have been difficult in the normal operating condition
FSK 변조에 의한 CPM DS-SS 통신시스템의 단일주파수 잡음에 대한 성능평가
박종연,황준원 江原大學校 産業技術硏究所 1997 産業技術硏究 Vol.17 No.-
This paper has analyzed the performance against a single tone jamming for the CPM DS-SS system with a Binary FSK Modulation. The CPM DS-SS system designed with the different phase shift of the same pseude-noise code has the advantage of reducing the jamming and interference effects on multi-users communication environment. Analytical results show that the system preformance improves by increasing parrallel users in he presence of the coherent single-tone, which is the worst interference since the jamming signal has the same frequency as a carrier.
朴基榮,李浚龜,金永一,朴泰均,辛泳一,黃載然,李賢,李秉烈 대전대학교 한의학연구소 2002 한의학연구소 논문집 Vol.10 No.2
As mentioned above, I have acquired some valuable results about medical treatment with acupuncture and Moxibustion of " Flank pain" after studying oriental medical books . The results Were like below: 1. Medical treatment with acupunctures of Flank pain belonged to the Urinary Bladder Meridian of Foot Taiyang, the Liver Meridian of Foot Jueyin, the Gall Bladder Meridian of Foot Shaoyang. 2. Medical treatmcnt with acupunctures of Flank pain used to Yang-laung-chan(陽陵泉), Gi-gu(支溝), Gi-mun(期門), Kan-su(肝兪) in turn. 3. Medical treatment with Ear acupunctures of Flank pain used to Dam(膽), Sin-Mun(神門), Gan(肝)in turn 4. Acupuncture point of Flank pain were lowrer limb part. chest and abdominal part, back part in turn. 5. Medical treatment with Moxibustion of Flank pain was the most Jang-mun(章門)
Trigger point를 利用한 口眼괘斜 患者 10例에 대한 臨床的 考察
鄭榮敦,李浚龜,金永一,朴泰均,辛泳一,黃載然,李賢,李秉烈 대전대학교 한의학연구소 2002 한의학연구소 논문집 Vol.10 No.2
From July 1th 2001 to October 31th 2001, the Clinical investigation studies were carried out 10 cases of patient with Bell's palsy using Trigger point treatment group, who had been treated in Han-seung Oriental Medical Clinic. The results were like below : 1. The distribution of sex : Male were 4cases, female were 6case and the female to male ratio was 1.5 : 1. 2. The distribution of contributing factor : Unknown reason was most predominant 4 cases, and then were revealed to labor too hard, menttal stress(3 cases), trauma·common cold(1 case) in turn. 3. The distribution of perid to fall ill : Under a week was the most number 6cases, and then were revealed a week under two weeks(3 cases), over two weeks(1 case) in turn. 4. About period of treatment : The Trigger point treatment group is shorter than the Acupuncture treatment group. 5. The distribution of grade on admission in descending order : GrⅠ was the most number and then GrⅡ, GrⅢ in turn. 6. The distribution of clinical symptoms on adimission : Mastoid pain was the most number 9 cases and then lacrimal gland disorder 8 cases, dysgeusia 4 cases, hyperacusis 2 cases, the others 2 cases in turn. 7. About effect of treatment : The Trigger point treatment group is more excellent than the Acupuncture treatment group. 8. The more patient age is young, the more effect of treatment was excellent, had nothing to do with both groups. 9. The more perid to fall ill is short, the more effect of treatment was excellent, had nothing to do with both groups. 10. About period of improved frontal belly : The Trigger point treatment group is more excellent than the Acupuncture treatment group.
주의력결핍과잉행동장애와 Alpha-1C-Adrenergic 수용체 유전자와의 연관성에 대한 연구
조수철,김재원,김붕년,황준원,박미라,김순애,조대연,유희정,정운선,손정우,박태원 大韓神經精神醫學會 2008 신경정신의학 Vol.47 No.1
Objectives : Neurobiological and pharmacological research has suggested that the dysregulation of the central noradrenergic systems might be involved in the pathophysiology of ADHD. The aim of this study was to examine the association of the alpha-1C-adrenergic receptor gene (ADRA1C) with ADHD in Korean subjects. Methods : In a case-control study, we assessed 186 DSM-IV ADHD probands and 150 normal controls. One hundred and eight trios were studied in a family-based association analysis. Psychiatric diagnoses were derived through structured diagnostic interviews. For the clinical evaluation of the ADHD subjects, the Child Behavior Checklist (CBCL), the ADHD Rating Scale-IV (ARS) and the Junior Temperament and Character Inventory (JTCI) were administered. A computerized continuous performance test (CPT) was used to measure the inattention and impulsivity of the ADHD children. Results : There were no significant differences in the genotype or allele frequencies of the ADRA1C PstI polymorphism between the ADHD and control group (p>0.05). The transmission disequilibrium test (TDT) analysis observed no evidence for biased transmission of any of the alleles of the PstI polymorphism. There were no significant differences in the CPT or JTCI profiles between those ADHD subjects with the CC genotype and those with the other (CT+TT) genotypes at the PstI polymorphism. Conclusion : The results of this study do not support the ADRA1C as a major genetic susceptibility factor in ADHD.
주의력결핍/과잉행동장애와 양극성장애 공존 환아군과 주의력결핍/과잉행동장애 환아군의 비교연구
정동선,하규섭,정희연,구훈정,황준원,김붕년,신민섭,조수철,홍강의 大韓神經精神醫學會 2006 신경정신의학 Vol.45 No.6
Objective : Attention deficit hyperactivity disorder (ADHD) is frequently comorbid with a variety of psychiatric disorders. Among them, bipolar disorder (BPD) has especially attracted growing interest. This is partly due to the fact that early onset BPD has been frequently misdiagnosed as ADHD because of symptomatic overlap. The aim of the present study is to find the differences in demographic data and clinical features of ADHD+BPD and ADHD in children and adolescents. Method : Children and adolescents patients participating in the present study have been enrolled at the child psychiatric clinic since 2004. 14 patients meeting the DSM-IV chteria for ADHD+BPD and 19 patients meeting the criteria for ADHD and 15 healthy comparison subjects were recruited. All groups were evaluated through the Schedule for Affective disorders and Schizophrenia for School-Age Children-Present and Life Time version-Korean version (K-SADS-PL-K). Demographic data and clinical charactehstics of the subjects were also collected. Parents were asked to complete the Child Behavior Check List(CBCL) and the Toddler Temperamental Scale (TTS) clinical ratings were obtained using the Young Mania Rating Scale(YMRS), the Children's Depression Iventory (CDI) and the Dupaul ADHD scale. Clinical variables between ADHD+BPD and ADHD were analyzed using the Mann-Whitney U test. YMRS, CDI, Dupaul ADHD scale (inattention and hyperactivity), CBCL, and TTS among the three groups were analyzed using the Kruskal-Wallis test with post-hoc Mann-Whitney U test. Results : 1) ADHD+BPD group had an earlier onset age of ADHD than ADHD group 2) ADHD+BPD group had more co-morbid psychiathc disorders than ADHD group. 3) Compared to ADHD group, ADHD+BPD had more psychiathc family history, especially mood disorders. 4) ADHD+BPD group had prodromal symptoms such as irritability, anger dyscontrol and academic dysfunction, compared to ADHD group who rarely showed prodromal symptoms. 5) ADHD+BPD group had higher ADHD scores than the ADHD group in the Dupaul ADHD inattentive scale. 6) In global functions of CBCL, ADHD+BPD group showed more impaired functions at home and school than ADHD group. 7) In Attention diagnostic system (ADS), ADHD+BPD group had more omission and commission errors than ADHD group, especially in the visual system. 8) In the subtests of the IQ profile, ADHD+BPD group had lower arithmetic and block design scores than ADHD group. Conclusion : Clinicians have to rule out underlying bipolarity in children and adolescents with ADHD who show earlier age of onset and severe clinical features. Bipolarity should be explored intensively in ADHD children and adolescents who have early onset of symptoms and severe functional impairment.
Clopidogrel에 의해 발생된 전신 염증 반응 증후군 1례
김민환,김종훈,박경일,박혜연,황철웅,김의석,도준형,남궁준,이성윤,이원로 白中央醫療院 2005 仁濟醫學 Vol.26 No.1
Clopidogrel bisulfate, a widely used inhibitor of platelet aggregation, is considered at least as safe as aspirin. We describe a 61 year old male patient who developed a systemic inflammatory response syndrome consisting of high fever, rash, chills, impaired liver function, and mild leukopenia after receiving clopidogrel after coronary angiography and stent implantation. The reaction resolved promptly after withdrawal of the drug, thus making the diagnosis of a clopidogrel induced reaction highly probable.
Hwang, Jun Yeon,Banerjee, Rajarshi,Diercks, David R.,Kaufman, Michael J. Korean Society of Microscopy 2013 Applied microscopy Vol.43 No.3
The heterogeneous nucleation of the ${\Theta}^{\prime}$ phase on nanoscale precipitates has been investigated using a combination of three-dimensional atom probe tomography and high-resolution transmission electron microscopy. Two types of ${\Theta}^{\prime}$ phases were observed, namely small (~2 nm thick) cylindrical precipitates and larger (~100 nm) globular precipitates and both appear to be heterogeneously nucleated on the nanoscale precipitates. The composition and crystal structure of precipitates were directly analyzed by combination of two advanced characterization techniques.