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정현희,최경순 동의대학교 생활과학연구소 2000 生活科學論集 Vol.4 No.-
This study was to investigate the following research questions. (1) Are there any gender differences in the mother's socialization-patterns and child's self-concept? (2) Is there any relationship between mother's socialization-patterns and child's self-concept? (3) Is child's self-concept influenced by the mother's socialization-patterns and child's gender? The subjects of this study were 235 boys and 207 girls attending elementary schools in Busan. Lee, Kyung-Hee's questionnaires(1993) on mother's socialization patterns and Kim, Ki-Jung's questionnaires(1984) on child's academic self-concept and Kim, Hee-Kyung's questionnaires(1990) on child's physical, home, social self-concept were used. The results were as follows: 1)The mother's imperative mode for boys differed significantly from that for girls. Boys perceived mother's socialization-patterns as more imperative. And boy's physical self-concept and academic self-concept differed significantly from girl's. Boy had higher scores than girl in physical self-concept and academic self-concept. 2)There were significantly correlations between mother's position-oriented mode and boy's self-concept, between mother's poison-oriented mode and boy's self-concept. 3)The mother's poison-oriented mode was the predictor variable influencing on child's academic self-concept. And the mother's position-oriented mode and the mother's person-oriented mode were the predictor variables influencing on child's home self-concept.
영상신호의 상관관계를 이용한 CORDIC 기반의 DCT 설계
정현욱,김진상,조원경 경희-다반 ASIC 설계교육센터 2002 경희-다반 ASIC센터 논문집 Vol.3 No.-
We propose a novel low-power discrete cosine transform (DCT) architecture based on CORDIC processors. The CORDIC-based DCT algorithm is a good candidate for high performance applications because of its simple arithmetic operation. The proposed algorithm reduces conventional CORDIC-based DCT computation by exploiting the spatial correlation of image data. The proposed architecture can be used for the low-power applications like multimedia portable electronic devices.
신경주,곽경숙,최정신,심현숙 漢陽大學校 韓國生活科學硏究所 1991 韓國 生活 科學 硏究 Vol.- No.1
In this rapid changing period, the study about traditional life is necessary to preserve our culture. Un Moon Sa Buddist nuns' school was chosen for this study because that temple could be the last place to be affected by modern western culture. The purpose of this survey was to find out the change of traditional living pattern of Buddist nuns and lighting conditions of their school(Un Moon shool for Buddist nuns), and to compare it with last survey in 1985. The results of the survey were as follows. 1) Nuns' living area was enlarged as much as about 2.5 times since 1985 and leisure space too. 2) Students' living schedule was not changed so much since 1985, but the distance of moving trace was increased because of addition of working time. 3) Their private living pattern was almost sitting style on the floor as ever, but the public space such as ones for guests, leisure and kitchen were transferred to chair -using style. 4) The average rate of daylight of nuns' living space was 1.3% during day time and average illumination was 33 Lux during night time. So their lighting conditions was insufficient for reading books.
모 컴퓨터 회사 근로자 건강증진 사업 전개를 위한 수요조사
임현우,안병용,최환석,박정일,김경수,이강숙,김정아,구정완 가톨릭대학산업의학쎈타 산업의학연구소 1997 韓國의 産業醫學 Vol.36 No.4
Before conducting the health promotion program, we surveyed the health risk appraisal(HRA) of 210 workers (186 men and 24 women) in a computer company, for the need assessment, selection of target population, priority setting, and as a standard for comparision after performing the program. The smokers were 115(88.6%), and drinkers (over 1 bottle of Soju per week) were 91(44.8%) in men. Entire women and 148(78.0%) men never or irregularly exercise. Type A personality were 73(39.2%) in men, 8(33.3%) in women, and 26(14.0%) of men and 6(25.0%) of women were high stress risk group. 53(25.2%) of men and 2(8.3%) of women were obese (BMI ≥25kg/m²), and workers who consumed exess of total calory compared with recommendation were 142(76.3%) in men and 18(75%) of women. By the health risk appraisal, it was suggested that smoking cessation program, drinking counselling, exercise prescription, stress management, and weight control program should be conducted effectively for the high risk group.
기경현,강홍렬,김재현 순천대학교 2000 순천대학교 자연과학논문집 Vol.19 No.1
In the paper, the special characteristics of the system are emphasized regarding the nature of low frequency oscillations are discussed. This study reveal the emergence of an undamped swing mode involving the interaction of several machines and their controllers. Excitation systems with automatic voltage regulator(AVR) and governors and power system stabilizer(PSS) are installed locally within power plants and used for improvement of power system response to small and large disturbance. However an improperly tuned PSS and AVR could destabilize low frequency oscillation mode. This paper show that it is important to select the coefficients of AVR and PSS.
金碩鉉,韓鏡秀,姜晋鎬 慶尙大學校 1985 論文集 Vol.24 No.2
國內外에서 蒐集한 찰보리의 栽培 可能性을 檢討하고 몇가지 品質特性을 메성보리와 比較하기 위하여 慶尙大學校 田作圃場에서 메보리 8品種, 찰보리 7品種과 맥주보리 4品種을 試驗栽培하여 分析한 結果를 要約하면 다음과 같다. 1. 收量은 찰보리가 메보리 보다 낮고 導入찰보리인 Wanubet와 Wafranubet가 各各 73%, 77%로서 標準品種안 창녕 보다 낮다. 2. Amylose 含量은 맥주보리, 피과맥 메성, 찰보리의 順이며 導入철보리와 國內에서 育成한 찰보리 간의 差異는 없다. 3. 炊飯吸水率과 밥白度는 찰성이 메성보다 높다. 4. Amylogram 의 粘性에서 糊化溫度와 最高粘度時溫度는 찰성이 메성보다 낮고 最高粘度는 활성이 메성 보다 높다. 導入찰성과 國內에서 育成한 찰성보리간에는 差異를 認定 할 수 없다. Changes in the grain quality were examined in 8 non-waxy, 7 waxy and 4 malting barley cultivars(Hordeum,vulgare L.) collected from Korea and the U.S.A. Yield was higher in non-waxy barley. Wanubet and Wafranubet collected from the U.S.A. were 73 and 77%, respectively, of Changyeong in the yield. Malting and non-waxy barley contained more amylose than waxy types. No significant difference was observed in amylose content between Korea and U. S. A. cultivars. Waxy barley showed a higher water absorption ratio and cooking whiteness than non-waxy barley. Gelatinization temperature and the temperature at which maximum viscosity was lower in waxy than non-waxy barley. The reverse was true ill maximum viscosity. There was no significant difference in the viscosity of amylogram between Korea and U. S. A. cultivars.
꿩에서 분리된 Newcastle Diesase Virus 내열성주 (CBP)의 Fusion(F) 유전자 클론닝과 염기서열 분석
장경수,전무형,송희종,김귀현,박종현 충남대학교 생물공학연구소 1999 생물공학연구지 Vol.7 No.-
The gene encoding F protein of CBP-1 strain, a heat-stable Newcastle disease virus (NDV) isolated from the diseased pheasants in Korea, was characterized by reverse transcriptionpolymerase chain reaction (RT-PCR), nucleotide and amino acid sequences. Virus RNA was prepared from the chorioallatoic fluid infected with NDV CBP-1 virus and cDNA was amplified by RT-PCR, cloned and sequenced to analyze. The PCR was sensitive as to detect the virus titer above 2^5 hemagglutination unit. 1.7kb (1,707bp) size of the cDNA was amplified and cloned into BamHI site of pVL1393 Baculo transfer vector. The uncleotide sequences for F protein were determined by dye terminator cyclic sequencing using four pairs of primers, and 553 amino acid sequences were predicted. In comparison of the nucleotide sequence of F gene of CBP-1 with those of other NDV strains, the homology revealed 88.8%, 98.5% and 98.7% with Kyojungwon (KJW), Texas GB and Beaudette C strains, respectively. As the deduced 553 amino acid sequences of F protein of CBP-1 were compared with those of other NDV strains, the homology appeared 89.9%, 98.7% and 98.9% with KJW, Texas GB and Beaudette C strains, respectively. The putative protease cleavage site (112-116) was R-R-Q-K-R, indicating that CBP-1 strain is velogenic type. The amino acid sequences include 6 sites of N-asparagine-linked glycosylation and 13 cysteine residues. These data indicate that the genotype of CBP-1 strain is more closely associated with the strains of Texas GB and Beaudette C than KJW strain.
급속응고된 N-type Bi₂Te_(2.75)Se_(0.15) 열전재료의 미세조직과 열전특성에 미치는 압출비의 영향
김태경,이상일,임종호,손현택,김택수,천병선 대한금속재료학회 2005 대한금속·재료학회지 Vol.43 No.1
The n-Type thermoelectric compounds of Bi₂Te_(2.75)Se_(0.15) doped with 0.1 wt% SbI₃ were fabricated by gas atomization process and extruded under ratio of 16:1 and 28:1 at 450℃. The effect of extrusion ratio on the microstructures and thermoelectric properties were investigated by a combination of microscopy, XRD and thermoelectric properties. Grains of extruded bars are smaller than those of heated powder at extrusion temperature (450℃) due to the dynamic recrystallization but with increasing the amount of plastic deformation, grains of specimen extruded with 28:1 were slightly coarse. The compressive strength of hot extruded bar under 28:1 is 160 MPa and with decreasing the extrusion ratio to 16:1, the value is 250 MPa. The Seebeck coefficient a and electrical resistivity p were decreased with increasing ratio, while thermal conductivity x was increased. this results from decrease of carrier scattering and increase of carrier mobility. Extruded bar under ratio of 16:1 shows the higher value of figure of merit (Z=2.50x10^(-3)/K) than that of 28:1 (Z=2.07x10^(-3)/K). (Received June 24, 2004)
김경수,김기환,김현만,윤지원,강엽 아주대학교 1997 아주의학 Vol.2 No.2
IDDM (Insulin dependent diabetes mellitus) is believed to be an autoimmune disease and characterized by the immune activation against insulin-producing pancreatic beta cell. The identification and characterization of new autoantigens reactive with an activated immune System would heip to elucidate the pathogenic mechanism of this disease. Several autoantigens are trying to apply for diagnosis and prevention of IDDM. The NOD (non obese diabetic) mice have been the best model for studying the pathogenesis of human IDDM. To identify new autoantigens reactive with activated humoral immunity of NOD mice, the lambda gt11 cDNA library was constructed from NOD-derived pancreatic beta cell (MIN6N8a: mouse insulinoma cell) and screened with prediabetic NOD sera. Mine positive dones were selected from 2x10^(5) phage plaques. The 5'-end sequencing and homology searching showed that six clones from nine clones had over 98% sequence homolgy with the retroviral envelope gene. Full sequendng reveated that the cloned gene was a fragment of ecotropic retrovirus (emv-3) envelope gene. To confirm the immunoreactivity of doned retroviral envelope protein, the cloned gene fragment was expressed in an E.coli expression vector System. Western blotting showed that the recombinant envelope protein fragment also reacted with prediabetic NOD sera.