學習者 變因의 相互關係 探索

金龍來,丘星淑 弘益大學校 敎育硏究所 1991 敎育硏究論叢 Vol.- No.7

The purpose of this research was to examine the interrelations among learner-related variables(IQ, academic self-concept : Asc, school-related adjustment : Sad and academic achievement : Aa) (LRV), the mutual differences by levels of LRV and the effect of LRV on each variables. This research were investigated through the following problems. 1) What significant interrelation coefficients are there among learner-related variables(LRV : IQ, Asc, Sad, Aa)? 2) What significant differences are there between high and low level of LRV respectively and each learner's variables? 3) What the combined and relative effects are there LRV and LRV's subfactors on each variables? The subjects for this research were 627(M : 333, F : 294) and selected randomly from secondary school(Middle : 293, High : 334) in Seoul area. And instruments used for this research were 'Self-concept scale'(Kim, Y. R., & Koo, S. S., 1989), 'School-related adjustment scale'(Kim, Y. R., & Koo, S. S., 1991), 'Teacher-made test' and various kinds of 'Standardization intelligence test'. The collected data were processed simple correlation, differences and regression analysis through SPSS program. The major findings of this research were as follows : 1) The correlation coefficients between learner-related variables(IQ, Asc, Sad and Aa) and one variable among learner-related variables(LRV) were statistically significant positives as the range of .1885(IQ and Sad)~.6699(Asc and Sad)(p<.01) respectively, and especially the correlation Asc and Sad was the highest(r=.6699, p<.01). And the correlations IQ and Asc's sub-factors were statistically significant positive coefficients respectively as range of. 1842(Sgs)~.3489(Aas)(p<.01), and also correlation coefficient with Sad were .4156(Acs)~.7280(Sgs)(p<.01), with Aa were .2711(Sgs)~.5096(Acs)(p<.01). Besides, the correlations between Sad's sub-factors and IQ were as range of .1406(Sen)~.2072(Sin)(p<.01), and correlations with Aa were .1368(Sen)~.3138(Sin)(p<.01), With Asc were as range of .4082(Sfr)~.6388(Sin)(p<.01). 2) There was a significant difference in Asc and Sad's sub-factors(adjustment toward school life : Sli, adjustment toward school environment : Sen, adjustment toward school teacher : Ste, adjustment toward school instruction : Sin, adjustment toward school friend : Sfr) by sex and level of school. And male students were higher than female students in Aas, Ins, Acs and Sms among achievement self-concept : Acs, academic ability self-concept : Aas and subject-matter self-concept : Sms) and well adjusted than female students in Sen and Ste among Sad's sub-factors. And middle school students were higher than high school students in Sgs, Ins, Acs and Sms among Asc's sub-factors and well adjusted than high school students in Sli, Sen and Ste among Sad's sub-factors. On the other hand, the well adjusted learner was high in IQ, Aa and Aas, Sms, Ins and Sgs among Asc's sub-factors, and learner who got higher level Aa was high in Asc and well adjusted toward Sli, Sen, Sfr and Ste among Sad's sub-factors than others(p<.01). The R^2(combined effect) of LRV(Sad, Aa and IQ) on Asc was 55.35%, and there were significantly relative effects of LRV on Asc respectively(Sad : 44.88%, Aa : 10.47, p<.01). And there were significantly relative effects of Sad's sub-factors on Asc respectively(Sin : 40.81%, Ste : 8.30% and Sli : 1.09%), the combined effect(R^2) of these sub-factors on Asc was 50.20%. There were significantly relative effects of LRV on Sad respectively(Asc : 44.88%, Aa : 0.8%), and the combined effect if these variables on Sad was 45.76%. There were significantly relative effects of Asc's sub-factors on Sad respectively(Sgs : 53.00%, Ins : 6.99%, Sns : 0.66%), and the combined effect(R^2) of these variables on Sad was 60.65%. Finally, the R^2 of LRV(IQ, Sad, Asc) on Aa was 44.92%, and the relative effects were 37.02%(IQ), 7.30%(Asc) and 0.60%(Sad). And there were significantly relative effects of Acs(25.97%) and Sms(2.79%) among Asc's sub-factors, and only Sin(9.85%) among Sad's sub-factors on Aa.

剪斷壁體의 有孔形態에 따른 應力變化에 관한 比較 硏究

구해식,안용덕 경남대학교 공업기술연구소 2001 硏究論文集 Vol.19 No.-

본 연구에서는 전단벽체에 건물의 기능상 설치되는 다양한 형태의 개구부로 인하여 발생되는 응력집중과 이에 따른 내력과 강성이 저하되는 정도를 SAP2000 Solid Element를 이용하여 분석함으로 효율적인 구조해석 및 구조계획이 될 수 있도록 기초자료를 제공하고자 한다. 음력을 단면손실율과 비교해 본 결과 WT형은 주각부에서 음력이 제일 크며 나머지 형태는 우각부와 최상단에서 크게 나타났다. 따라서 응력면에서는 음력집중이 적게 발생하는 WC형과 WB2형을 설치하는 것이 바람직하다. 공간활용면에서는 WT형이 통행에 불편을 줄 수 있으며 WB1형은 응력집중 현상이 나타나므로 WC, WB2, WB3형을 설치하는 것이 좋다. 아파트 시공을 위한 작업통로는 음력집중이 발생하는 WBI형보다 우각부에 필렛을 둔 WC, WB2, WB3형 개구부를 설치하는 것이 좋으며 물량면에서는 WT형이 가장 유리한 것으로 나타났다. By analysing the stress concentration occurred by various openings which is installed at shear wall for function, analyzing the degree of reduction in the internal force and rigidity with the SAP2000 solid element, the purpose of this study is to offer the basic data for the efficient design in the structual analysis and the architectural planing. Type WT is high at the part of column base, but the rest of openings are high at the part of right angle and the top. Type WC and Type WB2 are better than Type WT in considering the stress concentration. Type WT has poor passing and Type WBI Is remarkable in the stress concentration. Therefore the shape of WC, WB2, WB3 is profitable for the opening. The working way is profitable to install at the shape of WC, wB2, WB3 put fillet at the part of angle. In view of the amount of material, Type WT is lower at 15th floor and over than Type WS.

朴木月의 詩世界 考察

具勇秀 朝鮮大學校 敎育大學院 1986 敎育論叢 Vol.2 No.2

고성능 BiCMOS의 전기적 특성에 관한 연구

구용서 서경대학교 1994 論文集 Vol.22 No.2

이중 매몰층, 1.5㎛ 에피두께, 이중 well, LOCOS 소자격리, LDD MOS 소자와 이중 다결정실리콘 전극을 갖는 바이폴라 소자에 의하여 구성된 BiCMOS 소자를 설계, 제작하였다. 제작된 소자를 측정 및 분석한 결과, 31단 CML 바이폴라(A_E=2×8μ㎡)링 발진기와 31단 CMOS(A_E=1.25×5μ㎡) 인버터 링 발진기로부터 94㎰/5V와 330㎰/12V의 게이트 전달지연시간/소자 강복전압을 갖는 바이폴라 및 MOS 소자특성을 얻을 수 있었다. 또한 BiCMOS 소자의 경우, 31단 BiCMOS 링 발진기로부터 약 700㎰의 게이트 전달 지연시간을 얻었으며, 출력부하의 증가에 따른 속도의 감속비가 완만한 전기적 특성을 얻을 수 있었다.

클러스터링을 이용한 실시간 주문형 멀티미디어 시스템에 관한 연구

丘龍完 水原大學校 1999 論文集 Vol.17 No.-

A MOD server is most important element in MOD system. It stores massive multimedia data in storage device such as disk array. When a MOD client requires a certain video play-back, MOD server retrieves it and transmits client. Hence, in this thesis, we analyse requirements to be considered for a MOD server and then design an efficient Soft Real-Time MOD server system using clustering.

CALPUFF model과 ISCST3 model을 이용한 악취모델링 기법 연구

구윤서,김성태,김용규,송선호 안양대학교 산업기술연구소 2002 自然科學硏究 Vol.9 No.-

악취는 인간의 후각기관에 의해 감지되기 때문에, 대상 지역의 평균농도(Average Concentration) 보다는 악취의 특성상 순간적인 농도인 첨두농도(Peak Concentration)가 중요한 의미를 갖는다. 따라서 이것을 모델링에 적용하기에는 많은 어려움이 있다. 이를 해결하는 것이 이 연구의 주된 과제라 할 수 있다. 현재 국내에서 환경영향평가에 많이 사용되고 있는 ISCST3 Model (Industrial Source Complex Short Term 3 Model)과 CALPUFF Model (California Puff Model)을 사용하여 첨두농도(Peak Concentration)를 고려한 관능악취도(Odor Intensity)를 두 가지 방법으로 산정 하였다. 첫 번째로는 오염원에서 배출되는 물질의 농도를 이용하는 방법과 다른 하나는 종합악취도 개념으로 악취농도(Odor Concentration)를 이용하여 관능악취도를 산정하는 것이다. 위의 두 가지 방법을 ISCST3 Model과 CALPUFF Model에 적용하여 모델링을 수행한 후 나온 기여농도를 첨두농도로 환산한 후 관능악취도를 계산하였다. 이와 같은 이론 배경을 바탕으로 현장 적용성을 파악하기 위해서 수도권매립장의 한 지점에서 가상의 가스배제공이 있다고 가정하고, ISCST3 Model과 CALPUFF Model에 동일한 조건으로 모델링을 수행하여 매립장 주변에 미치는 관능악취도를 각각 산출해 비교 검토하였다. 그 결과 두 모델에서의 차이는 크지 않았으나 기여농도와 첨두농도 사이에는 상당한 차이를 보였다. 결과적으로 악취모델링을 수행함에 있어서 기여농도만을 고려하는 것은 관능악취도를 과소평가 할 우려가 있으므로 배출원 특성을 고려한 첨두농도로 관능악취도를 평가하는 것이 타당하다고 판단된다. In order to manage the odor related public complains effectively, the estimation of peak ground-level concentration which is capable of predicting the intermittent maximum response less than 10 seconds is very important. However, peak rather than 3 minute or 1 hour average concentrations are not easily predicted by current air dispersion models such as SCST3 (Industrial Source Complex Short Term - version 3) and CALPUFF (CALifornia Puff) models. According to the field and wind tunnel measurements, the intensity of the peak concentration depends on the emission source type, downwind distance and atmospheric stability. The odor modeling methods to predict the peak concentration were reviewed and the detailed procedure for the odor modeling was explained in this study. In order to compare the conventional air dispersion models with the oder models, the odor concentrations with various modeling techniques under the identical emission and meterological conditions were calculated. The peak concentration shows highest value than the 3 minutes or 1 hour average concentrations. The predicted odor concentrations by the CALPUFF model are higher than those predicted by the ISCST3 model since the CALPUFF model reflects the time-dependent movement of the plume. It is recommended that using the peak concentration with the CALPUFF model rather than 3 minutes or 1 hour average concentrations is more reasonable approaches to manage the odor problems.

수직적 안모형태와 치아성숙도의 상관관계에 대한 연구

구용한,현홍근,김정욱,장기택,이상훈,한세현,김종철 大韓小兒齒科學會 2010 大韓小兒齒科學會誌 Vol.37 No.1

본 연구는 수직적 안모형태와 치아성숙도의 관계를 평가하고 이러한 연관성에 대한 사춘기 성장의 영향을 평가하기 위한 것이다. 이번 연구를 위해 7세에서 9세, 13세에서 15세 환자 1306명을 Ricketts의 VERT index를 이용하여 수직적 안모 형태를 분류하였고 환자들의 치령을 Demirjian법으로 평가하여 다음과 같은 결과를 얻었다. 1. 모든 군에서 치령이 역령과 비교 시 통계적으로 유의한 수준에서 크게 측정되었다. 2. 사춘기 연령군에서 brachyfacial type의 경우가 dolichofacial type 보다 치아성숙도가 크게 나타나는 경향을 보였다. 여성의 경우는 통계적으로 유의성있게 차이가 나타났으며, 남성의 경우는 통계적 유의성은 보이지 않았다. 3. Brachyfacial type의 경우 사춘기전 군들과 비교 시 사춘기 군들에서 치아성숙도가 유의성있게 높게 나타났으며, dolichofacial type의 경우는 연령층간 치아성숙도의 차이를 보이지 않았다. The purpose of this investigation was to study the relationship between vertical facial pattern and dental maturation in children in pubertal and pre-pubertal periods. The material consisted of lateral head films and panoramic radiographs of 1306 patients. The subjects were selected according to Ricketts's VERT index and other including criteria. These subjects were divided by VERT index to brachyfacial group and dolichofacial group. In each selected subject, dental age was determined according to Demirjian's dental maturity score. All subjects were distributed according to age, vertical facial type and sex, mean and standard deviation of chronological age, dental age and age difference were determined in each group. And the data were analysed to find the difference of tooth maturation by facial pattern. Findings of this study include: 1. In all groups, dental age was determined higher than chronological age in statistically significant level. 2. Compared by vertical facial pattern, in pubertal age groups, it seems that subjects with brachyfacial type presented the tendency to have an advanced dental maturation, only in female group. 3. Compared by pubertal period, brachyfacial groups presented more advanced dental maturation in pubertal groups than pre-pubertal groups.

한글대장경 웹 검색 시스템의 구현

구현우,선수림,박미화,이재수,이용규,이금석,홍영식,한보광 동국대학교 전자불전연구소 2007 전자불전 Vol.9 No.-

본 연구는 한글대장경 전산화 6차 사업으로 한글대장경 30책 분량을 전산화하여 검색 시스템을 구축하는데 목적이 있다. 고려대장경의 우리말 번역본인 한글대장경을 전산화하기 위해 개역된 고문헌을 입력하여 데이터베이스로 구축하고, 인터넷을 통해 그 내용을 검색할 수 있도록 한다. 한글대장경 고문헌은 확장한자, 누락문자, 특수문자 등을 포함하고 있어서, 본 연구에서는 효과적인 입력과 저장을 위해 유니코드(Unicode)를 사용하며, 유니코드로 표현하지 못하는 문자들은 이미지 폰트를 생성하여 표현한다. 데이터베이스를 구축하기 위해서 DBMS로는 MS-SQL 7.0을 사용하고, 운영체제로는 윈도우 2000 서버를, 웹 서버로는 IIS(Internet Information Server)를 사용하여 검색 시스템을 구축하였다. 또한 다양한 검색 방법을 제공하는 검색 엔진을 개발하여, 유니코드로 저장된 한글대장경 고문헌의 내용을 웹(http://ebtc.dongguk.ac.kr/)을 통해 보다 쉽게 전 세계에서 접근할 수 있도록 한다. This research aims for constructing retrieval system by digitizing thirty books quantities of Hangul Tripitaka in the 6th Hangul Tripitaka Digitization Project. For digitizing Hangul Tripitaka which is a Korean version of the Tripitaka Korean, we can input, store the retranslated archaic documents in database, and search their contents through the Internet. Because the archaic documents of Hangul Tripitaka includes extension characters of Chinese origin, missing characters and special characters, we input and store documents use Unicode and make image fonts that cannot be represented by Unicode. Also, for developing retrieval system in this research, we use MS-SQL 7.0 and IIS(Internet Information Server) on Windows 2000 Server. By developing search engine which provides variety of retrieval methods, people who concern the archaic documents in the whole world can access Hangul Tripitaka saved as Unicode using the Web.

한약재가 Aspergillus parasiticus R-716의 生育과 aflatoxin 生成에 미치는 影響

구성회,이용욱,정덕화,김종규 한국식품위생학회 1988 식품위생학회지 Vol.3 No.2

한의원에서 오래 前부터 사용되어 오고 있는 몇 종의 한약재를 구입하여 이들을 chloroform으로 추출하여 추출물을 조제한 다음 공시균(Aspergillus parasiticus R-716)의 生育과 aflatoxin 生成에 미치는 影響을 조사한 결과 다음과 같은 結論을 얻었다. 1. 목단 추출물 첨가군에서 가장 현저하게 공시균의 生育이 저해되었고 그외의 첨가군에서도 강황, 봉출, 향부자, 백작액, 백출의 順으로 저해되었다. 2. Aflatoxin 生成은 백출과 강황 추출물 첨가군에서만 저해되었고, 나머지 첨가군에서는 오히려 증가되거나 효과가 적었다. 3. 백출 추출물 0.2ml첨가시 3일째부터 菌體 生成을 시작하여 9일째에 0.953g/30ml이었고, aflatoxin 함량은 792㎍으로서 대조군에 비해 약 50%가 감소되었다. 菌體 g當 aflatoxin 함량은 992㎍으로서 대조군의 1,467㎍에 비해 역시 크게 감소되었으며 NADPH oxidase 活性은 대조군보다 높아 백출 추출물이 공시균의 生育과 aflatoxin 生成에 저해 효과가 있는 것으로 나타났다. The possible effects of some oriental herbs, which have been used to treat cancerlike disease in Korea, on growth and aflatoxin production by Aspergillus parasiticus R-716 were investigated. Zedoaria rhizoma, Curcuma longa, Cyperus rotundus, Angelica gigas, Paeonia albiflora, Paeonia mountan, Atractylis ovata, and Pulsatilla koreana were extracted with chloroform. Among them the extract of Paeonia mountan was remarkably effective on the growth inhibition, and Curcuma longa, Zedoaria rhizoma, Cyperus rotundus, Paeonia albiflora, Atractylis ovata also inhibited the growth. The extract of Atractylis ovata and Curcuma longa, also inhibited the aflatoxin production but the others showed no effect at all or sometimes stimulated effect. With the addition of 0.2ml extract of Atractylis ovata in 30ml SLS medium, the growth was delayed for about 2 days, and after 9 days, mycelium weight was 0.953g, and total aflatoxin was reduced 50%(792㎍)of that produced in the control(1547㎍). Aflatoxin per mycelium weight was decreased 32%(992㎍)of that produced in the control(1467㎍), but NADPH oxidase was higher as compared to the control. The extract of Atractylis ovata appeared to have a inhibitory effect on the growth and aflatoxin production of Aspergillus parasiticus R-716.

실시간 운영체계를 위한 통신 메카니즘에 관한 연구

丘龍完 水原大學校 1987 論文集 Vol.5 No.-

This paper described the modification and complement of XINU operating systems to allow possible real time operating systems. The IPC machanism was developed. It is not onle optimally inserted into the communication layer of kernel for efficient synchronyzation of the processors which exist many site, but also applied to workstation based on LAN. For these purpose, the events and semaphores are introduced and designed for solving the synchronization and cooperation problems.