• Journal of IKEEE
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• v.22 no.4
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• pp.1202-1205
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• 2018

In this paper, we proposed ggNMOS based on 4H-SiC material and analyzed its electrical characteristics. 4H-SiC is a wide band-gap meterial, which is superior in area contrast and high voltage characteristics to Si material, and is attracting attention in the power semiconductor field. The proposed device has high robustness and strong snapback characteristics. The process consisted of SiC process and electrical characteristics were analyzed by TLP measurement equipment.

• Journal of Korean Philosophical Society
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• v.116
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• pp.465-484
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• 2010

In diesem Aufsatz werden die Si Dan(四端) in dem Mengtzu durch die Bedeutung des Abbruchs der Selbstliebe in der Kriktik der praktischen Vernunft projiziert und gelesen. Fuer Kant ist die Befriedigung der Neigungen die subjektiven Bestimmungsgruenden seiner Willkuer. Nach ihnen macht sich selbst das allgemeine Prinzip der Selbstliebe die eigene Glueckseligkeit "zum objektiven Bestimmungsgrund." Das moralische Gesetz schlaegt jenes subjektive Prinzip der Selbstliebe nieder, und das bedeutet die Si Dan(四端) in dem Mentzu. Die Si Dan sind die Bestimmungsgruende der menschlichen Wesen. Das Subjekt des moralischen Gesetzes bricht deswegen seine Selbstliebe ab und richtet sich an sozialen Gemeinschaft, weil die Selbstlibe fuer den Individualismus.

• Proceedings of the KIEE Conference
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• 1987.07a
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• pp.461-464
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• 1987

With the fabrication of Al-$Al_2O_3$-n(p) type Si devices, the analysis and measurement of various characteristics, this study presented the electric physical property theory for the charge distribution of MAS device $Al_2O_3$ films, and inquired out the devices available. In order to study them, Al-(450A)$Al_2O_3$-n(p) type Si was the main objects in the study. They were examined through carrier injection, C-V curves of devices on time, ${\Delta}V_{FB}$-t curves, I-V curves and $Al_2O_3$ film's breakdown characteristics.

• The Journal of Internal Korean Medicine
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• v.25 no.2
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• pp.195-201
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• 2004

Background and Purpose : Hypertension is one of the modifiable risk factors for stroke. Lowering blood pressure is a primary or secondary preventative measure for stroke. This study aims to assess the efficacy of Chunghyul-dan(Qingxue-dan) in stage 1 hypertensive patients who have suffered a stroke by 24 hour ambulatory blood pressure monitoring(24ABPM). Subjects& Methods : We enrolled 40 hospitalized stroke patients with stage 1 hypertension and divided them into 2 groups by stratified randomization; group A took 1200mg of Chunghyul-dan(Qingxue-dan) at 8:00 a.m. for two weeks without changing herbal medicine, and group B was the control group. 28 patients were included in the final analysis(15 in group A. 13 in group B). Blood pressure is monitored from 8:00 am to 7:30 am every 30 minutes for 24 hours. Blood pressure was monitored two times at baseline and again two weeks later. We used 3 parameters for evaluating the efficacy of Chunghyul-dan(Qingxue-dan); The first parameter is change from baseline to two weeks later in blood pressure and pulse rate. The second parameter is the trough/peak ratio(TPR) and smoothness index(SI). The third parameter is antihypertensive rate by antihypertensive efficacy guideline. Results : There is no significant difference in the baseline assessment hetween the two groups. Systolic blood pressure $(141.37{\pm}8.96\;mmHg\;vs\;132.28{\pm}9.46\;mmHg)$ decreased after two weeks of 1200mg(P=0.03) intake of Chunghyul-dan(Qingxue-dan). Systolic TPR and SI was 0.87 and 1.04 in group A. Antihypertensive rate was higher in group A. Conclusion: These results suggest that 1200mg doses of Clunghyul-dan(Qingxue-dan) is an effective antihypertensive agent on stage 1 hypertension patients who have suffered a stroke.

• Applied Chemistry for Engineering
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• v.10 no.3
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• pp.354-361
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• 1999

The films annealed after physical deposition of titanium and chemical deposition of amorphous silicon by plasma were formed Si-rich titanium silicide with a good quality of crystallinity and had the various lattice structures due to orientation of lattices for epitaxy growth during annealing process. Band gap of the titanium silicide had 1.14~1.165 eV and the films annealed after chemical deposition of a-Si:H by plasma were influenced by a-Si and the dangling bond offered by desorption of hydrogen. Urbach tail ($E_0$) of the films annealed after physical deposition of Ti was nearly constant within a range of 0.045~0.05 eV, and the number of defect in films annealed after chemical deposition of a-Si:H by plasma was about 2~3 times more than that in annealed Ti/Si films.

• Journal of Korean Classical Literature and Education
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• no.15
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• pp.421-461
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• 2008

Miss Ki, the heroine of (취유부벽정기) is the image on which Hong-saeng's mind is projected. And the mind of Hong-saeng(홍생) is the allegory of Kim, si-seop's(김시습) mind to king Dan-jong. So I think the mind of Ki who thinks patriotism is more important than her life is the allegory of Kim si-seop's patriotic sentiment to king Dan-jong. And I think the sorrow of Hong-saeng for the ruins of Ko-choseon(고조선) means sorrow of Kim, si-seop's(김시습) for the death of Dan-jong's. They felt sorrowful because values that they considered as absolute ones were damaged. However, everything in the world are fatally changed. Although people think the most important thing they think now is never changed, after long time they cannot but see all is changed. At last people realize the thing seemed most important will disappear in vain. So the writer of (취유부벽정기) made a image of Miss Ki who is a nymph of moon and was the princess of Ko-choseon to awaken Hong-saeng. He intended to change hong-saeng's mind to king Dan-jong with the change of Miss Ki's mind to her father. But the writer knew the fact that though Hong-saeng changed his mind, he could not become happy. So he wanted to transcend the real world, but he can't. After all he expressed his wants in fantastic lunar world.

• Applied Chemistry for Engineering
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• v.10 no.1
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• pp.98-104
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• 1999

In this work, we investigated hydrogen content, bond structure, and electrical properties of a-Si:H films prepared by ECR plasma CVD as a function of pressure. In general, the photo sensitivity of a-Si:H films prepared by CVD method decreases as the deposition rate increases, but the photo sensitivity of a-Si:H films prepared by ECR plasma deposition method increases as the deposition rate increases. In the same condition of microwave power, the ratio of $SiH_4/H_2$, and pressure, though film thickness increases linearly with deposition time and hydrogen content in the film is constant, photo conductivity can be decreased because $SiH_2$ bond is made more than SiH bond in the short reaction time. According to increase pressure in the chamber, SiH bond in the film increase and optical energy gap decrease. So, photo conductivity can be increased. But photo sensitivity decreased as dark conductivity increase. It must be grown in the condition of low pressure and hydrogen gas for taking the a-Si:H film of high quality.

• Applied Chemistry for Engineering
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• v.10 no.3
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• pp.343-348
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• 1999

The iron silicide films were prepared by chemical vapor deposition method using rf-plasma in variations of substrate temperature. rf-power, and ratio of $SiH_4$ and Fe-precursor. While iron silicide films are generally grown by ion beam synthesis (IBS) method of multi-step process, it is confirmed that iron silicide or $\beta$-phase consolidated $Fe_aSi_bC_cH_d$ was formed by one-step process in this study. The characteristics of films is variable because the different amounts of carbon and hydrogen was involved in the films as a function of dilute ratio of Fe-precursors and silane. It was shown that the different characteristics of films in carbon and hydrogen following the ratio of Fe-precursor and silane. The optical gap energy of films fabricated according to substrate temperature was invariant because active site brought in desorption of hydrogen was limiled. When rf-power was above 240 watt, the optical gap energy turned out to have high values because of dangling bonds increased by etching.

• Journal of the Korean Society of Costume
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• v.56 no.1 s.100
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• pp.131-142
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• 2006

This research has been done based on the Jeon Si Gwa(田柴科) regulation, the monumental inscription material and the former studies. The background of adapting the official uniform regulation in the early Goryeo Dynasty has been surveyed. Differentiating criterion in the official uniform color like purple(紫衫), red(丹衫), red(緋衫), and green(綠衫) has been studied. The official rank had been classified by the color of the official uniform in the early Goryeo uniform regulation. The lower class had worn purple(紫衫). The purple wearing class had not been the government post but the official rank. Those who worked for the Palace had worn purple color since purple color represented the Imperial Palace on which TAI-IL(太一), that is, the highest one of gods dwelt. Those who had worn red(丹色) in the monumental inscription had worked for the job associated with the military service or Hanlim savant(翰林學士) of Kwangmun Academy(光文院) and Hanlim Academy(翰林元). Dan Seo(丹書) which recorded King's commands also means the monumental inscription. In the Goryeosa(高麗史), the military class had been only in Dan Sam(丹衫). That means those class worn Dan Sam(丹衫) could have been as the strong supportive class for the Dynasty. In the early Goryeo Dynasty, the four colored uniform regulation had followed the enforcing policy of the royal authority. It has been assumed that the uniform regulation had been used as a way of enrolling the new supporting class into the existing official system. Dan Sam(丹衫) which had been worn only in the early Goryeo can be seen as the special class for strengthening the royal authority.

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.11
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• pp.6245-6248
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• 2013

Aims: To study effects of down-regulation of pituitary tumor-transforming gene (PTTG) on proliferation and metastasis ability of the SCL-1 cutaneous squamous cell carcinoma (CSCC) cell line and explore related mechanisms. Methods: SCL-1 cells were divided into 3 groups (untreated, siRNA control and PTTG siRNA). Cell proliferation assays were performed using a CCK-8 kit and proliferation and metastasis ability were analyzed using Boyden chambers. In addition, expression of MMP-2 and MMP-9 was detected by r-time qPCR and Western blotting. Results: Down-regulation of PTTG could markedly inhibit cell proliferation in SCL-1 cells, compared to untreated and control siRNA groups (P < 0.05). Real-time qPCR demonstrated that expression levels of PTTG, MMP-2 and MMP-9 in the PTTG siRNA group were 0.8%, 23.2% and 21.3% of untreated levels. Western blotting revealed that expression of PTTG, MMP-2 and MMP-9 proteins in the PTTG siRNA group was obviously down-regulated. The numbers of migrating cells ($51.38{\pm}4.71$) in the PTTG siRNA group was obviously lower than that in untreated group ($131.33{\pm}6.12$) and the control siRNA group ($127.72{\pm}5.20$) (P < 0.05), suggesting that decrease of proliferation and metastasis ability mediated by PTTG knock-down may be closely correlated with down-regulation of MMP-2 and MMP-9 expression. Conclusion: Inhibition of PTTG expression may be a new target for therapy of CSCC.