전통적 image의 형태적 요소를 이용한 정보통신기기 디자인연구

玄相勳 三陟大學校 1998 論文集 Vol.31 No.3

Thanks to the rapid development of technology in Electronics, Information and Communiciation, today all of the country including us are experiencing surrounding changes of the technology in the Information & Communication field to prepare for the high information age of 21C. Especially the world is in full-scale process of super high Information & Communication to support all kinds of its services and new medial ones. It is important not only to develop high developed machinery but also to have a sense of traditional design to appeal it. Referring to design, it can play an important role to distinguish our products from other country ones only when it is characterized with our special pattern and form in many parts of culture and arts and when we ger well accustomed to our climate. Until now, traditional fan applied to the Information & Communication machinery used traditional image in the formal factor has been found but our traditional fan's form has been greatly considered not only in the external form but also in the interior side by using the incantative form, design and color. As we observed, our products are very superior to others and have an infinite possibility to develop into the goods having an international design. So I looked at the Information & Communication machinery on the side of its design subjecting it of this study. And I used the formal factor of traditional image to make the machinery portable and usable easily and considered the functional side to carry its function as well as the emotional side to lessen the distance between the user and the machinery in orde people to gather information and share.

3-Acetamidophenyl Acetate의 Fries Rearrangement 반응 연구

김동현, 만노즈 마니캄, 풀라레디 보꾸, 이상윤, 조정석, 정상헌 충남대학교 약학대학 의약품개발연구소 2017 藥學論文集 Vol.32 No.-

Fries rearrangement has been known as highly useful reaction for the synthesis of ortho-or para-hydroxyacylbenzene from phenyl ester in the presence of Lewis acid catalyst. Conventionally, aluminum chloride was used as catalyst. For obtaining N-(4-acetyl-3-hydroxyphenyl)acetamide, 3-acetamidophenyl acetate was subjected to Fries Rearrangement reaction using aluminum chloride. Although the desired N-( 4-acetyl-3-hydroxyphenyl)acetamide was obtained, yield was very low. In addition, regioisomer N-(2-acetyl-5-hydroxyphenyl)acetamide and unexpected N-(2-methyl-4-oxo-4H-chromen-7-yl) acet-amide were obtained. NMR study and conversion to known compollnds confirmed the substitlltion pattern of these phenylacetamides and the structure of chromen-4-ones. Under this Fries Rearrangement condition, formation of chromen-4-one was newly discovered.

편심하중 작용시 극한해석 상계법을 이용한 얕은 기초의 지지력 분석

상현규,류권일,고영헌,김팔규 忠南大學校 産業技術硏究所 2001 산업기술연구논문집 Vol.16 No.2

In the study the bearing capacity of the eccentrically loaded shallow footing is estimated by means of the upper bound method of limit analysis. In the case of applying the upper bound, the results depend on the failure mechanism. So the failure surface is correctly studied through the model test using sand. New method is proposed to estimate the bearing capacity of the eccentrically loaded shallow footing by means of the upper bound method to apply the failure mechanism based on the model test. The propriety of new method is verified by the results of various methods. And the influences of the variables eccentricity, embedment depth, variations of contact width factor by model test using sand are also studied in this paper

한국주식시장의 규모효과 및 1월효과에 관한 실증연구

李憲相,崔同鉉 全北大學校 1996 論文集 Vol.42 No.-

Concerning stock market price behavior, several anomalies have been reported. Anomalies are systematic deviations from the predictions of the CAPM(Capital Asset Pricing Model) or the Efficient Market Hypothesis. The January effect is one of the most well-known anomalies. The size effect is that small size firm get higher stock return than any other size firm. The January effect is a phenomenon that the stock return is significantly higher in January than in ant other month. This study aims at testing the size effect and the January effect in the Korean Stock market. Based upon review of previous results and hypotheses to explain such an anomaly, we empirically test this effect. Futhermore, this study combines the analysis with the size effect.

유방통을 호소하는 한국 여성에서 Gamma Linolenic acid의 임상적인 효과

정재헌,김권천,조현진,민영돈,김성환,김정용,장정환 조선대학교 부설 의학연구소 2000 The Medical Journal of Chosun University Vol.25 No.1

Background and Objectives : Recently, the incidence of breast cancer is gradually increasing in korea. Many patients visit the hospital with a fear of breast cancer, if she had the pain in her breast. But Breast pain is not a cardinal sign of breast cancer. Only 7% of patient in breast cancer has breast pain. Materials and Method : To know the clinical effects of gamma-linolenic acid(GLA), we analyzed the medical records of 55 cases with breast pain, who visited the outpatient clinic of Chosun university hospital, between July of 1999 to December of 1999. Of the 55cases of breast pain, we analyzed 26 cases of patient with breast pain who was treated with GLA for 2 month and we excluded patients of breast pain who had breast mass or were treated with other drug. Results : 2 Patients we are dropped out because nausea and vomiting were developed, 4 Patient with breast pain were treated with GLA for 1 month, and relieved completely from mastalgia and 8 patients with breast pain were treated with GLA for 2 months and breast pain was relieved completelys. 4 patient had treatment for 2 months, were relieved slightly. But 8 patients with breast pain didn't reveal the relief of symptom after the intake of GLA. Conclusion : We conclude that GLA could be considered a first line drug in patients with mastalgia.

Junctional Rhythm을 보인 한국형 출혈열 1례

이성원,이수훈,최대현,손영기,차광수,손춘희,정원태,김성은,김종성 동아대학교의과대학 1997 동아의대학술지 Vol.9 No.1

연근의 열수 추출물이 흰쥐의 국소 뇌혈류량과 혈압에 미치는 영향

박성혜,신언환,구재근,이태헌,한종현 동아시아식생활학회 2005 동아시아식생활학회지 Vol.15 No.1

The purpose of this study was to measure the changes of regional cerebral blood flow(rCBF) and blood pressure(BP) in rats, following the intravenous injection of Nelumbo nucifera water extract. The measurement was continually monitored by laser-doppler flowmeter and pressure transducer in anesthetized adult Sprague-Dawley rats for about 2 to 2 and half hours through the data acquisition system composed of MacLab and Macintosh computer, The results of this experiment were as follows. Nelumbo nucifera significantly increased the changes of rCBF in rats. The rCBF of Nelumbo nucifera was not changed by pretreated propranolol, atropine, L-NNA and indomethacin. But the rCBF of Nelumbo nucifera was decreased by pretreated methylene blue. Nelumbo nucifera decreased the BP significantly, The BP of Nelumbo nucifera was not changed by pretreated propranolol, atropine, L-NNA and indomethacin. But the BP of Nelumbo nucifera was decreased by pretreated methylene blue. These results indicated that Nelumbo nucifera might increase the rCBF and decrease the BP which related to guanylyl cyclase activity.

고층사무소건물의 매스구성을 위한 전문가 시스템의 개발에 관한 연구

서정훈,박상현,권종욱 영남대학교 환경문제연구소 2000 環境硏究 Vol.20 No.1

건축에서의 전문가 시스템은 설계자에게 많은 가상적인 해결안을 반복해서 수집해야할 수고를 줄여주고 모델링이나 정보제공과 같은 정형적인 측면과 설계의 판단, 상황별 특성과 같은 비정형적인 측면을 연결시키는 도구로 작용한다. 본 연구는 고층사무소건물의 설계과정 중 매스 구성 단계에서 중요한 역할을 하는 요소를 찾아내고, 그 요소들의 정형화 및 표준화 작업을 통해 고층사무소건물의 매스구성을 보조하는 전문가 시스템을 개발하는데 그 목적을 두었다. 본 연구에서 얻어진 결론을 요약해보면 다음과 같다. 건축설계작업 중 매스구성 단계를 제한조건을 만족시켜나가는 제한조건 만족모델로 인식할 수 있었으며, 이 제한조건의 일부를 체계화하여 건물의 매스구성을 보조할 수 있는 시스템을 개발하는 것이 가능하였다. 또, 개발된 시스템을 실제 사례를 통해 평가해 본 결과 타당성 있는 결과물을 산출할 수 있었다. In architecture, the expert system helps architects reduce unnecessarily repeated process. It also serves as a tool of linking patterned processes such as medeling and information provision, with unpatterned processes like decision-making process which can produce different results depending on the situation. This study is devoted to develop an expert system which is helpful to find out the important factors in massing process and to assist the massing of high-rise office buildings through patternization and standardization. The conclusion from the study as follows; It is definitely possible to make the expert system recognize the massing process as a process of meeting all the constraints on a step-by-step basis. So, the developed expert system can assist the massing process by systemizing parts of the constraints. It also proved that the developed knowledge-based system can produce proper outputs as its test showed during the study.

표면 Micromachining법을 이용한 MIMIC용 ZnO-FBAR(Thin-Film Bulk Acoustic Wave Resonator)의 제조 및 그 특성

김상호,조인귀,이석헌,최현철,이용현 경북대학교 센서기술연구소 1997 센서技術學術大會論文集 Vol.8 No.1

FBAR(Thin-Film Bulk Acoustic wave Resonator) is monolithically integrable with semiconductor device, leading to small size and low cost, high Q rf circuit elements with applications in the radar and communications area. FBAR with Air-gap used in high frequency range(GHz range) was fabricated by surface micromachining technique. Zinc Oxide(ZnO) thin film was used as piezoelectric material and was deposited by rf magnetron sputtering. The thickness of ZnO thin film was about 1 μm. Thin metal film(Ni-Cr:50 Å/Au:1000 Å) was used as top and bottom electrodes to reduce acoustic wave loss. The measured resonant frequency of the FBAR was 2.95 GHz and S_(11) value(forward reflection value) was -18.912 dB.

Lymphangioma에 의한 거설증을 지닌 환자의 개교합 증례보고 : A CASE REPORT

윤희훈,이상대,김영재,장기택,한세현,이상훈 大韓小兒齒科學會 2004 大韓小兒齒科學會誌 Vol.31 No.2

Lymphangioma는 림프관에 나타나는 양성종양으로 림프관의 증식을 특징으로 한다. 이 종양의 대부분은 출생 시에 나타나며 종양의 95%정도가 10세 이전에 나타난다. 구강 내에 발생하는 경우에는 혀에서 가장 호발하며 거설증을 야기한다. 대개 양측성으로 혀의 전방 2/3부위에 나타나며 불규칙한 회색과 핑크빛을 띤 소절형태를 보인다. 본 증례 모두에서 환아들은 출생당시 혀에 lymphangioma를 지니고 태어나 거설증을 보였으며 이로 인해 개교합과 하악과성장 양상을 나타내었다. Lymphangioma에 의한 비정상적인 혀의 비대에 의해 환아의 구강과 두개안면부의 주위조직에 대한 적응 결과로 나타난 소견을 관찰하고 관련문헌을 고찰하여 다소의 지견을 얻었기에 보고하는 바이다. Lymphangioma is a benign tumor of lymphatic vessels. The majority of cases are present at birth and 95% of the tumors aroused before the age of 10 years. Oral lymphangioma may occur at various sites but are most frequent on the anterior two thirds of the tongue, where they often result in macroglossia. The lesions present nodularity with gray and pink projections. In the present cases, all the patients who had the macroglossia combined with lymphangioma showed openbite and mandibular prognathism. The purpose of this paper was to report the dental and craniofacial findings of macroglossia combined with lymphangioma and review the pertinent literature through the cases.