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이유경,임동정,이윤희,박용일,Lee, Yoo-Kyung,Lim, Dong-Jung,Lee, Yoon-Hee,Park, Yong-Il The Korean Society of Phycology 2006 ALGAE Vol.21 No.1
Three different forms of Undaria pinnatifida, the southern form (U. pinnatifida f. typica), the northern form (U. pinnatifida f. distans), and Samcheok form (recently cultivated strain), were examined for the contents and compositions of fucoidans. Fucoidans were extracted from the dried edible portions of three forms of U. pinnatifida in low pH condition, mainly by ethanol precipitation and CaCl2 treatment. It was shown that Samcheok form contains 1.8 and 3.5 times more fucoidans than the northern and the southern forms, respectively. The monosaccharide compositions of individual fucoidans were also varied. The fucoidans from the southern and the northern forms were shown to be composed of mainly fucose and galactose with the molar percentage ratios of 83.5%:16.5% and 87.4%:12.6%, respectively, indicating that these are F-type fucoidans. The fucoidan from Samcheok form, however, consisted of fucose (62.7%), galactose (32.9%), and small amount of glucose (4.4%). The results of this study showed that both amount and monosaccharide compositions of fucoidans are variable depending on U. pinnatifida forms.
행지(行遲)로 진단된 하지부 운동발달지연 환아의 치험 1례 보고
이유경,채중원,Lee, Yu-Gyoung,Chae, Jung-Won 대한한방소아과학회 2007 대한한방소아과학회지 Vol.21 No.3
Objectives This is the clinical report about 1 case of patient with delayed motor development in lower limbs. Methods The herb medication, acupuncture therapies were applied for treating delayed motor development from June 9 to November 20, 2007. Results After 5 months treatment, the patient's delayed motor development were improved by oriental medical therapy. Conclusions We report the good results of oriental medical therapy on a pediatric patient with delayed lower limbs motor development. For more accurate studies, further studies would be needed with more cases.
ATM망에서 위반 셀을 이용한 트래픽 제어에 관한 연구
김대영,김장형,이유경 濟州大學校 工科大學 産業技術硏究所 1998 尖端技術硏究所論文集 Vol.9 No.1
In this paper, we proposed priority scheduling and buffer assignment algorithm using two finite buffers and multiple threshold values as a priority cell scheduling mechanism to serve efficiently multimedia traffic in ATM networks. Multimedia traffics can be categorized into four classes based on their real time properties and loss tolerance. we analysed priority control mechanisms to achieve the cell loss rate requirements and the delay requirements of each service class using an ATM switch with output buffer. Basic concept of proposed priority control scheme is flexible to serve the four classes service using double buffers in ATM Adaptation Layer(AAL) The service classes of our concern are satisfied with the CBR(Constant Bit Rate) class and VBR(Variable Bit Rate) class. The CBR is applied to Push Out cell loss priority method and the VBR is applied PBS to method with two thresholds. The performance of the proposed method is to firstly discard the tagged cell from the UPC parameter using two threshold is better than the VBR with one threshold.
이유경,이건수 충남대학교 의과대학 지역사회의학연구소 2001 충남의대잡지 Vol.28 No.1
It is known that 10-20% of childhood epilepsy is refractory to anticonvulsants. Recently, a few new anticonvulsants has been introduced. This study has been done to investigate the effect of topiramate as an add-on therapy in the refractory childhood epilepsy. We have evaluated 50 cases of intractable childhood epilepsy who were treated at Chungnam National University Hospital from January 1985 to June 2000. 1. There was no significance in effect and number of anticonvulsant, duration of seizure, frequency of seizure, but there was mild reverse correlation between the duration and frequency of seizures. 2. Seizures free rate was 34%(17cases). Patients of 50% or more reduction in sezure frequency were 34 cases(68%) of total patients. Percents of 50% or more reduction in sezure frequencies were 66.7%(4/6) of complex partial seizure, 66.7%(2/3) of simple partial seizure, 72.2%(13/18) of secondary geneneralized seizure, 75%(3/4) of clonic seizure, 50%(3/6) of tonic seizure, 50%(1/2) of myoclonic seizure, 100%(3/3) of atonic seizure, 75%(3/4) of Lennox-Gastaut syndrome and 50%(2/4) of infantile spasm. 10 out of 50 cases showed no changes or increased frequencies of seizure. 3. Adverse effects of topiramate were noted in 19 cases(38%). Adverse effects were somnolence, anorexia, nausea/vomiting, weight loss, lethargy, behavior problem, ataxia, dizziness, fatigue, nervousness and emotional lability, but most adverse effects were mild. We conclude that topiramate as add-on therapy is effective and well tolerated in the treatment of refractory epilepsy.
Gunn 다이오드를 利用한 레이다用 MIC 도플러 모듈에 關한 硏究
朴漢奎,李裕景 연세대학교 산업기술연구소 1980 논문집 Vol.12 No.1
In this paper Doppler Module detecting the moving objects with the Doppler effect in the microwave was integrated to MIC. The oscillator, detecting and antenna circuits are fabricated on Epsilan-10 microstrip substrate. The stabilization is achived by coupling a transmission cavity to the main cavity mounted Gunn diode and mode jumping problem was solved by coupling a third cavity to a transmission cavity. The microwave power by the Gunn diode oscillator was 16.8[mW] at 9.5[GHz]. Doppler signal level by the zero-biased Schottky barrier diode was detected with 47mV?? at Г=0.33 and minimum detectable power was -31.9dBm. In this module, microstrip dipole antenna was used and its radiation pattern was nearly symmetrical around the normal axis with a half-power angle of about 40。.