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PDM에서 XML(eXtensible Markup Language)을 활용한 전자카탈로그 시스템 개발
추헌진,이건상,이강수 한국경영과학회 2001 한국경영과학회 학술대회논문집 Vol.- No.1(2)
As E-commerce has been brisk, Electronic Catalo very important because it is core of E-comm However to make E-Catalog they usually use diffe formats each other. So it is hard to make exc information with other E-catalogs or just show metadata in the search field. For solving that problem and middle tire of exchange information, is not only powerful tool to make it easy that p but useful method to search data on stru information with XML. In this paper, we propose to develop Electronic C for use product structure and configuration mana system using XML in the PDM
Propylthiouracil 투여에 의한 갑상선 기능저하 흰쥐 조직에서 알코올 탈수소효소 활성의 변화
백상현,김동선,이창범,박용수,안유헌,김태화,기춘석,강주섭 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.2
Background: Thyroid hormone has been known to affect hepatic alcohol dehydrogenase (ADH) activity. Although the liver is the principal site of ethanol metabolism, stomach is also responsible in part for ethanol oxidation. The effects of thyroid hormone on ADH activity in gastric mucosa and other tissues of rats had not been previously examined. Method: The effects of thyroid hormone on liver, stomach, lung, and kidney ADH activities (nM of NADH/min/mg of cytosolic protein) have been investigated in male Sprague Dawley rats treated with propylthiouracil (50 mg/kg) for 14 days. Results: Whereas hepatic ADH activities were not changed by treatment with PTU(42.9(8.6 vs 45.2 (10.1), gastric ADH activities in PTU-treated rats increased by 258.8% of control rat (6.3 ( 0.6 vs 2.2 ( 1.2, p〈0.001). In the activities of other tissues, PTU treatment decreased lung ADH activity by 59.7% of control, and increased kidney ADH activities by 247.1% of control rats. Conclusion: These data suggest that hypothyroidism causes an increase of gastric alcohol metabolism, and that the increase of gastric ADH activity can partly restore the first pass metabolism of ethanol in hypothyroid rats.
남성성기능장애 환자의 우울, 불안, 스트레스 지각 및 대응전략
정헌구,정상근,황익근,박종관 大韓神經精神醫學會 1997 신경정신의학 Vol.36 No.3
남성성기능장애 환자와 정상대조군을 비교한 우울, 불안, 스트레스 지각과 남성성기능 장애 환자의 스트레스 대응전략에서 다음과 같은 결과를 얻었다. 1) 남성성기능장애 환자에서 우울과 불안의 수준이 유의하게 더 높았다. 2) 남성성기능장애 환자에서 전반적 생활에서 느끼는 스트레스에 대한 지각이 유의하게 더 높았고 특히 일과 직업, 대인관계에서 스트레스를 더 많이 지각하고 있었으며 최근 1년간의 부정적 생활 사건의 빈도가 유의하게 더 높았다. 3) 남성성기능장애 환자의 대응전략으로는 지적추구, 재정립과 순응이 많았고 대부분이 취약성을 부정하는 경향을 보였다. 배우자가 없는 남성성기능장애 환자에 비해 배우자가 있는 남성성기능장애 환자자 적극적으로 대응하며 정서적 불안정성, 불안 및 두려움이 적었다. 남성성기능장애 환자의 가장 큰 지지원은 의사였다. Thirty-one male sexual dysfunctional patients were selected to investigate their depression, anxiety, stress perception, and coping strategy. Then were examined by Beck's Depression Inventory, State-Trait Anxiety Inventory, Symptom Checklist-90-Revised, Global Assessment of Recent Stress Scale an Coping Strategy. Twenty-seven healthy normal adults were selected as control group. The results were as follows: 1) Depression and anxiety scores were significantly higher in the patients. 2) Stress perception of usual life, especially work job and change in relationships, was significantly higher in the patients. Frequency of negative life events was significantly higher in the patients. 3) As coping strategy, intellectualisation, redefinition and compliance were most frequently used by the patients. Most of the patients showed tendency to deny their vulnerabilities. Patients who lived with spouse showed more active confrontation and less emotional turmoil, anxiety and fear than patients who lived without spouse.
윤종학,여만구,김상헌 한국공작기계학회 1996 한국생산제조학회지 Vol.5 No.3
This study is focused on the prediction of appropriate tool life by clarifying the correlation between progressive tool wear and AE(Acoustic Emission) signals, while cutting stainless steel by end mill on te machining center. The results of this study were that RMSAE tends to increase linearly along with the incrase of the cutting speed, and it was more sensitive to depth of cut than to the variation of feed rate at the same cutting conditions, and RMSAE increases around 0.21mm flank wear hereby AE-HIT also increases. AE signals depend upon tool wear and fracture from the above results. Therefore, the AE signals can be utilized in order to monitor the tool condition.
Solution Viscosity and Relative Reactivity of Branched and Linear Polycarbonates
Sang-Pil Kim,Bong-Hee Lee,Sang-Hern Kim,Whan-Gi Kim 한국유화학회 2000 한국응용과학기술학회지 Vol.17 No.2
The relative reactivities of branched and linear polycarbonates were investigated by measuring unreacted chloroformate concentration. It was found that the polymerization for the branched polymer proceeded ca. 10 times faster than that for the linear polymers. The effect of catalyst on a condensation step was studied by changing the amount of TEA (triethylamine) at t0 and t60 with keeping constant amount of TEA. The viscosity average molecular weight for the obtained branched polycarbonates were measured and compared with those of linear polycarbonates. It was found that the viscosity molecular weights of the obtained polymers decreased nonlinearly as wt % of added oligomer increased. The solution viscosities in methylenechloride for linear and branched polycarbonate increased nonlinearly as the content of polymer increased.
Characterization of Transparent Conducting Al-Doped ZnO Thin Films and Device Applications
Sang Hern Lee,Tae Hoon Kim,정세영,Young Moon Yu 한국물리학회 2007 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.51 No.II
In order to apply AZO thin film as transparent conducting electrode in the field of LEDs, AZO thin films were deposited by RF magnetron sputtering on various substrates, such as sapphire, p-GaN, n-GaN and TJ GaN-based LEDs, respectively. The AZO showed high transparency ($>$90 \% at 460 nm) and low resistivity (3.9 $\times$ 10$^{-4}$ $\Omega$$\cdot$cm). Especially, the AZO grown on n-GaN and TJ GaN-based LEDs exhibited good ohmic behavior with annealing at 500 $^{\circ}$C for 1$-$2 min under N${_2}$ ambient. The forward voltage of the TJ GaN-based LEDs with AZO contact was about 4.1 V and the light intensity was enhanced by more than 30 \% compared to that of conventional LEDs with Ni/Au contact. This result shows that AZO is a promising material for transparent conducting electrode in LED applications.
신증후성 출혈열에 이환된 후 발생한 뇌하수체 기능저하증 1예
성윤경,김동선,홍철호,이창범,박용수,최웅환,안유헌,김태화 한양대학교 의과대학 2002 한양의대 학술지 Vol.22 No.2
A 53-year-old Korean man presented with several years history of easy fatigue and general weakness. Twenty-five years ago, he was treated for hemorrhagic fever with renal syndrome (HFRS) complicated with acute renal failure. Afterwards, his libido and pubic hair were gradually decreased. To determine the function of he anterior pituitary gland, hormonal levels of target glands and pituitary gland were measured and combined pituitary stimulation test was performed, They revealed anterior pituitary insufficiency. In the magnetic resonance imaging, the anterior pituitary gland was contracted and sella was partially empty. But no hypothalamic or other pituitary lesion was observed. After 6 months hormonal replacement therapy, his symptoms were subsided and hormonal levels were normalized. HFRS is an acute febrile disease caused by Hantaan virus or Seoul virus. Hemorrhage and infarct-like necrosis of anterior lobe of the pituitary gland is one of the characteristic findings of the autopsied cases of HFRS patients, but clinically overt anterior hypopituitarism is rare. Recenty, we experienced a patient of hypopituitarism who had recovered from HFRS. We conclude that HFRS should be included in the differential diagnosis of hypopituitarism and physicians must consider the possibility of hypopituitarism in the acute stage of HFRS and after recovering from it.