Unit Root and Cointegration Tests of Puraching Power Parity in the Pacific Rim

Kim, Jin_ock 제주대학교 1992 논문집 Vol.34 No.1

구매력평가설(Thory of Purchasing Power Parity)에 관한 문헌을 개관하여 보면 구매력평가설이 성립하기 위한 가정의 적합성에 관하여 상당한 논란의 여지가 있음을 알 수 있다. 지금까지 행해진 경험적 분석들은 미국·유럽 및 일본경제에 있어서 구매력 평가설의 성립여부를 검정한 것 들이었다. 이러한 검정결과들은 구매력평가설이 성립하는 것을 옹호하는 편이지만, 그 암묵적 가정은 구매력평가설이 유사한 산업구조를 갖고 있는 국가들 사이에 성립한다는 것이다. 그러나 이러한 가정은 적절하지 못하다. 이러한 관점에서, 한국경제를 주축으로 한 환태평양지역에서 구매력평가설의 성과를 규명코자 시계열분석의 일환인 공적분 검정(Cointegration Test)과 단위근 검정(Unit Root Test)을 하였다. 공적분 검정결과에 의하면 태국을 제외한 국가들(미국, 독일, 일본, 필리핀, 인도)에 있어서 구매력평가설은 성립하지 않았다. 즉 한국경제에 있어서 구매력평가설은 성립하지 않음을 알 수 있다. 전형적인 이론에 의하면, 단기에 있어서 통화공급충격은 구매력평가의 편차를 야기하지만, 장기에 있어서 이러한 편차는 소멸된다. 반면에 실질충격(Oil Shock, 정부지출)은 단기 또는 장기에서 구매력평가의 편차를 야기한다. 따라서 본 논문의 항후 연구과제는 환태평양지역에서 구매력평가설이 성립하지 않음을 이론적으로 재규명하고 동시에 경험적 분석을 하는 데 있다.

Scrambling of Adjunct and Last Resort

Cho, Jai Hyoung,Kim, Ock Hwan 대한언어학회 1999 언어학 Vol.7 No.2

Cho, Jai-Hyoung and Kim, Ock-Hwan. 1999. Scrambling of Adjunct and Last Resort. Linguistics 7-$ 39-59. This paper deals with long-distance scrambling of adjuncts in Korean and Japanese with respect to the Last Resort principle. It is claimed that long-distance scrambled arguments are base-generated in the surface non-θ IP-adjoined position and that they must be obligatorily lowered into their θ-position at LF to check their θ-role feature, which is regarded as a movement-driving formal feature. Long-distance scrambled adjuncts are also argued to be base-generated in the IP-adjoined position. Unlike their argument counterparts, they are licensed there since adjuncts do not have any Case or θ-requirement. Thus, they must not be lowered into the embedded clause which they modify, otherwise the Last Resort principle would be violated. (Ajou University)

제3세대 시스템을 위한 무선접속방식의 비교-Ⅰ : TDMA 및 CDMA 기반 무선접속기술

남옥우,이순규,김재형 창원대학교 산업기술연구소 2001 産技硏論文集 Vol.15 No.-

In this paper, we persents an overview of worldwide air interface research activities and result of performance comparison analysis which regards to CDMA and TDMA based multiple access schemes for third generation mobile communication named IMT-2000. Considering systems are CDMA based FRAMES FMA2 and CODIT and TDMA based FREAMES FMA1 and ATDMA. As a result of performance comparison analysis, CDMA and TDMA schemes show almost equal performance. But the decisive factor is advanced technique such as interference cancellation methods which applied to receiver.

테녹시캄과 β-시콜로멕스트린 간의 고체분산체 형성에 의한 용출 증가

박옥선,전인구 동덕여자대학교 종합약학연구소 2001 동덕약학연구지 Vol.5 No.-

The purpose of this study is to investigate the interaction of tenoxicam with various cyclodextrins (CDs) in the aqueous solution and in solid state, and finally to formulate a tablet with enhanced dissolution rate. CDs used in solubility studies were α-, β- and γ -CD, 2-hydroxypropyl-β-CD (HPCD), sulfobutyl ether-β-CD (SBCD), dimethyl-β-CD (DMCD) and trimethyl-β-CD (TMCD). The effect of CDs on the solubility of tenoxicam was observed. Solid dispersions were prepared with β-CD using solvent evaporation and freeze-drying process and physical mixtures were prepared by trituration in a mortar. The ratios of drug to carrier were 1:1 and 1:2 molar ratio. These solid dispersions were evaluated by differential scanning calorimetry (DSC), Fourier-transform infrared spectroscopy (FT-IR) and dissolution studies. Solid dispersions were also formulated to tablets and then dissolution rates were compared with that of a commercial product. In aqueous solution, complex formation with α- and β-CD gives rise to Bs type solubility phase diagram, and DMCD, TMCD, HPCD and SBCD showed AL type diagrams. The solubility increase of tenoxicam was in the order of SBCD>γ-CD>β-CD>HPCD>DMCD>α-CD>TMCD. The presence of water soluble polymers such as povidone and hydroxypropyl methylcellulose in β-CD solution did not increase the solubility of tenoxicam. DSC and FT-IR studies confirmed the formation of an solid complex of tenoxicam with β-CD. Dissolution of solid dispersion was about 4-fold higher than that of drug alone and about 2-fold higher than that of physical mixture within 10 min at pH 1.2. As the ratio of carrier to drug increased, dissolution rate became faster. The dissolution rate of tenoxicam from the tablets prepared using freeze-dried solid dispersion at 1:2 molar raio was fast; more than 80% was dissolved within 15 min at pH 1.2. All tenoxicam tablets prepared using tenoxicam-β-CD solid dispersions showed more rapid dissolution rates than commercial tablets. Therefore, the solid dispersion technique is an effective method for increasing the dissolution rate of poorly water soluble tenoxicam. β-CD was thought to be a candidate carrier for preparing solid dispersion with tenoxicam.

고상추출카트리지를 이용한 잔류농약 다중분석과정에서 정제용매에 따른 회수율 비교

두옥주,정보경,김경식,정의근,김진곤,김명희 한국환경농학회 2002 한국환경농학회지 Vol.21 No.2

채소류 중 비교적 matrix효과가 적고, 수분 함량이 적절하여 회수율이 양호한 오이를 대상으로 하여 총 16종의 농약 성분을 A, B 두 group으로 나누어, 농약의 동시 다성분 분석의 전처리 과정 중 정제에 사용하는 용출용매로서 5%~20%의 acetone/hexane과 5%~20%의 ethyl acetate/hexane을 사용하여 각각의 회수율을 분석하여 얻은 결과는 다음과 같다. Acetone/hexane을 사용한 경우 5% acetone에서 총 16종의 농약 성분 중 ethalfluralin, trifluralin, chlorothalonil 등 11종의 농약은 높은 회수율을 보였으나, alachlor와 iprodione, endosulfan sulfate, bifenthrin, fenarimol은 매우 낮은 회수율을 나타내었고, 10% 이상의 acetone/hexane에서는 bifenthrin과 fenarimol 제외한 14종의 농약에서 높은 회수율을 얻을수 있었다. 그러나 bifenthrin은 20%의 acetone/hexane을 사용한 경우는 용출되지 않았고, fenarimol은 10% 이하의 acetone/hexane을 사용하였을 때는 낮은 회수율을 나타냈었다. Ethyl acetone/hexane을 사용하여 총 16 종의 농약 성분의 회수율 분석을 한 결과, 5% ethyl acetone에서 ethalfluralin, α-endosulfan, β-endosulfan (A group), vinclozolin, tetradifon, cyprethrin, fenvalerate (B group)에서만 70% 이상의 회수율을 얻었다. 10%의ethyl acetone/hexane을 사용하여 분석한 경우는 trifuralin, chlorothalonil, α-endosulfan, β-endosulfan, endosulfan sulfate(A group), vinclozolin, procymidone, tetradifon, cypermethrin, 그리고 fenvalerate(B group) 에서는 70% 이상의 회수율을 얻었고, 20%의 cthyl acetone/hexane 을 사용하여 분석한 경우는 5%나 10%의 ethyl acetone/hexan 을 사용하여 분석했을 때보다 좋은 결과를 나타내어 전체 16종의 농약 중 14종에서 75% 이상의 회수율을 얻었으나, alachlor와 bifenthrin은 매우 낮은 회수율을 보여서 ethyl acetate 와 hexane의 혼합용매가 이들 두 농약성분의 분석에는 적합하지 않은 용출 용매임을 알 수 있었다. A study was carried out to optimize the cleanup step using a solid-phase extraction (SPE) cartridge, SupelClean^(TM) Florisil, for multiresidue analysis of 16 pesticides in cucumber matrix. Eluting efficiencies of two solvent systems including acetone/n-hexane and ethyl acetate/n-hexane mixtures were critically evaluated by recoveries of target anaytes from the SPE Florisil column. Based on the recovery as a measure of eluting efficiency, an acetone/n-hexane (20/80,v/v) mixture provided more than 80% recovery for 15 pesticides except bifenthrin. In case of ethyl acetate/n-hexane, 14 pesticides showed recoveries higher than 75%, while those for alachior and bifenthrin were less than 30%.

의복 구성학의 연구 경향 분석

함옥상,박정숙,이경남 啓明大學校 生活科學硏究所 1998 科學論集 Vol.24 No.-

In this dissertation we have examined a thematic item from a published thesis of a scientific journal, such as Journal of the Korean Society of Clothing and Textiles, Journal of Korean Home Economics Association. The Journal of Korean Costumes since 1977. The study runs as follows. 1. If we analyze a published year and order of this dissertation, we will team the sharp increase of a thesis of scientific journal since 1991. 2. In high frequency on a study of thematic item, A dissertation on a bodily study holds the first place. 3. In the study on a role of clothing, A dissertation of a role on a change of bodily appearance and the test of habiliment stands first. 4. In the style of clothing of modern style, because of increasing ready-made clothes, A dissertation on establishment of measure occupies rans first. 5. In a study on work of pattern, A dissertation on bodice pattern holds the first place. 6. In a study on a bodily study, A dissertation on upper body stands first. 7 In a study used CAD system, A dissertation on upper garment holds the first place.

重患者室(ICU)患者에 關한 臨床看護學的 觀察

이옥숙 全北大學校 醫科大學附設 看護專門大學 1982 논문집 Vol.8 No.-

We have analyzed 1,117 patients who were admitted to the I.C.U. for intensive care during a period of 1 years from Jan, 1981, to December, 1981 in Jeonbug National university Hospital. The results are as follows : 1. The proportion to the total in patients number was 1.0% and mortality rate was 16.4%. 2. 50% of the patients were in the 21 to 50 year age group. The highest mortality rate occurred in the 71 age(25.9%) 3. The occupied bed days of the majority of the patient(78.2%) were below 5 days comprising 79.2% of the total expired patients. 4. The mortality rates of the departments of the medicine was 16.9%, general surgery 22.4%, and neurosurgery 29.5%. 5. The number of patients admitted to the department of neurosystem was 30.2%, cardiovascular system 18.3%, respiratory system 8.2%, and urinary system 4.3%. 6. All I.C.U. patients have been divided into two categories, operative and non-operative. The operative cases were 560(50.1%) and non-operative 557(49.9%). The mortality rate of the non-operative cases (21.9%) was higher than operative(10.9%).

정보써어비스의 새로운 추세와 적용문제에 관한 고찰

노옥순 韓國圖書館學會 1986 圖書館學 Vol.13 No.1

The purpose of this article is to take a look into the past twenty years and to evaluate the changes in the organization of the library and the information function during this time period. Academic and special libraries are the ones that have made an impressive progress and innovations to keep pace with a changing environment. New technologies and ideas have brought strong supporters of offering various specialized information services to the library users. The different approaches and experiments to better perform this professional role in the library and in turn, the efforts in the educational institutions to meet the challenges were reviewed through the literature. Much of the literature available regarding the reference and information function deals mainly with the trends in the u.s. libraries. The implications of these trends to Korean libraries and library education are sought in view of our social, economic, and educational circumstances as well as our user behavior

인문과학자의 연구진행특성과 도서관 : 정보요구와 정보관리의 제 현상에 관한 분석

노옥순 이화여자대학교 한국문화연구원 1989 韓國文化硏究院 論叢 Vol.55 No.-

The main intention of this paper is to look into the matters affecting the library that deals with the humanities. Based on comprehensive literature survey and analysis, information needs of scholars in the humanities and the role of the library as an information center are reconsidered in some detail. In fact, the behavioral research on scientists and social scientist in their scholarly communication and use of libraries has long been of interest to those in library and information science field. The research results have implied much on library operations and services. Types of materials acquired, use of subject specialist system, and better secondary services are some of the examples affected by the findings. Similar research efforts on the humanities began to be regularly reported in the 70 's. They treat mainly the difference between the aims, methods and styles of research people in the humanities as distinct from other disciplines. This disparate nature of knowledge and its communication suggests accordingly different approaches in various library policies and decision-making. The subject of this paper, therefore, is not the content of scholarship in the humanities, but information transfer. Special concern is on storage, retrieval and dissemination of information. Library as one of the most important information transfer institution comes naturally in the center of the subject. General characteristics of the humanities studies are observed first. Information needs of the scholars are analyzed along with their communication and research processes in the next section. What follows is the materials they need. These are reviewed in terms of quantity, quality, life span, and other aspects. Outstanding difficulties and problems that the humanities library face are brought out with some suggested ways to improve the situation. Collection management, inter-library cooperation, and secondary services (bibliographies, indexes, abstracts) are areas that still remain to be investigated for improvement.

芭蕉의 '사비'小考

유옥희 啓明大學校 國際學硏究所 日本硏究室 1999 日本學誌 Vol.19 No.-