The study was intended to compare typically developing children with autism or PDD (Pervasive Developmental Disability) children in sensory processing skills. To accomplish this goal, was translate and change of Short Sensory Profile(Dunn, 1999). The first step was perform factor analysis, items-total raw score relations and reliability of the scales. Then, the sensory processing skills of typically developing children and autism or PDD children was compared. Also, each two age groups of typically developing children and autism or PDD children were compared. Finally, gender of each typically developing children and autism or PDD children were compared. The subjects of the research were 186 typically developing children and 95 autism or PDD children aged 3 to 10 years. The result of the study have shown as follows: 1. There were significant differences between groups in total score and sub factor score. This results yielded significant differences between groups suggest that autism or PDD children had sensory processing difficulties. 2. There were no significant differences between two age groups differences of autism or PDD children but there were significant differences between two age groups of typically developing children on fore sub-factor score and total score. 3. There were no significant differences between each gender groups of typically developing children and autism or PDD children. In conclusion, this research proves the fact that differences between typical children and autistic PDD children in sensory processing skills. The scales utilized this study can be used to screening the autism or PDD children with sensory processing difficulties. It is expected that development of screening test tool for various disabilities children with sensory processing difficulties.

A bulk porous composite with plantinum nano-dispersion was synthesized in air atmosphere through the combination of several in situ reactions, including the pyrolysis of . A mixture of (dolomite), , and LiF (0.5 wt%, as an additive) was cold isostatically pressed at 200 MPa and sintered at for 2 h. The porous composite ( : Pt=99 : 1 in volume) had a uniformly open-porous structure (porosity: 56%) with three-dimensional (3-D) network and a narrow pore-size distribution, similarly to the porous composites reported before. Catalytic Properties (viz., NO direct decomposition and NO reduction by ) of the composite were investigated up to . In the absence of oxygen, the NO conversion rate reached ~52% for the direct decomposition and ~100% for the reduction by , respectively. The results suggest the possibility of the porous composite as a multifunctional filter, i.e., simultaneous hot gas-filtering and in one component.

An optimum route to fabricate the ferrous alloy dispersed nanocomposites such as /Fe-Ni and /Fe-Co with sound microstructure and desired properties was investigated. The composites were fabricated by the sintering of powder mixtures of and nano-sized ferrous alloy, in which the alloy was prepared by solution-chemistry routes using metal nitrates powders and a subsequent hydorgen reduction process. Microstructural observation of reduced powder mixture revealed that the Fe-Ni or Fe-Co alloy particles of about 20 nm in size homogeneously surrounded , forming nanocomposite powder. The sintered /Fe-Ni composite showed the formation of Fe phase, while the reaction phases were not observed in /Fe-Co composite. Hot-pressed /Fe-Ni composite showed improved mechanical properties and magnetic response. The properties are discussed in terms of microstructural characteristics such as the distribution and size of alloy particles.

This paper described the effect of subjective approach in case of the human sensibility experiments. The procedure is proceeded subjectively. Human faces are selected as the image presentation media. Pleasant and unpleasant images are selected directly by examiner, And also the image presentation system, which is executed with a computer and has the square-type black box monitor equipment, is manufactured. Images are presented with the step-variation time interval technique. questionnaire test and EEG signal detection data are analyzed. The analysis parameters are a “frequency band integral value” and a “band differential variation ratio”. he results show the high sensibility and fast response. The fact that image presenting repetition alleviates is verified.

구조물이 점점 더 커짐에 따라 그들을 분석하고 설계하는 것이 더 복잡해지고 더 많은 시간이 요구된다. 현재 사용되는 단일 프로세서를 가진 컴퓨터는 그와 같은 구조물을 해석하기에 효율적이지 못하다고 여겨진다. 이 논문에서는 거대규모의 구조물을 분석하기 위하여 컴포넌트 모우드법(CMM)과 메시지전달 시스템(MPI)을 이용함으로써 표준 병렬기법과 고도로 효율적이고 이식성 있는 프로그램을 새로 개발하였다. 이 연구에서는 구조물의 동적 해석을 위해 병렬처리기법을 지닌 컴퓨터 프로그램이 제시되고 새로 개발된 프로그램이 신뢰도를 갖고 있다는 것이 입증된다. 또한 이 프로그램은 상업용 프로그램보다 훨씬 처리속도가 빠르고 병렬처리 컴퓨터에서도 사용될 수 있다는 것을 보여준다.

Bacteriological quality of beef carcass and distributions of pathogens in beef processing environments were investigated to improve the hygienic quality of fresh beef. Total bacterial contamination of carcass surface in slaughtering process and cutting board in cut-meat process showed 10^5-10^6CFU/㎠ and l0^5CFU/㎠ in summer, respectively. The viable bacterial count of cotton glove was similar to that of cutting board during and entire period of year. Microbial contamination of carcass surface, cutting board, cotton glove and deboned meat showed the highest in summer and the lowest in winter during the year. Escherichia coli O157, Pseudomonas aeruginosa, Klebsiella. ornithinolytica, Staphylococcus aureus, E. coli, Tatumella. ptyseos, Serratia odorifera, Aeromonas sobria, Enterobacter cloacae and Flavimonas oryzihabitans were isolated from carcass surface during slaughter treatments. S. aureus, Listeria grayi and L. monocytogenes were isolated from cutting board and L. grayi, Erwinia spp. Salmonella spp. and S. aureus were isolated from cotton glove in cut-meat process environments. Citrobacter freundii, L. monocytogenes, and S. aureus were isolated from deboned meat.

기계적 합금화 공정을 이용하여 열전재료FeSi2분말을 제조하여 열간압축법을 사용하여 성형하였다. 열간압축 성형된 FeSi2는 열전특성을 나타내는 β-FeSi2 상 및 상변태가 완료되지 않은 α-Fe2Si5와 ε-FeSi의 혼합상으로 이루어져 있음이 확인되었다. 열전재료로의 β-FeSi2 상변태 유도를 위해 항온열처리를 행하여 상변태 조건을 조사하였다. SEM, TEM, XRD, DTA 등을 이용하여 상변태 거동을 분석한 결과, 830˚C에서 24시간 진공 항온열처리 후 단상의 β-FeSi2 상을 얻을 수 있었다. 항온열처리 전의 열간압축 성형체와 상변태가 완료된 β-FeSi2의 기계적 성질과 열전 특성을 측정하여 비교 분석하였다.

졸-겔공정을 이용하여 SiO2 및 TEOS에 유기 고분자로서 PDMS가 도입된 PDMS/SiO2 xerogel을 제조하고 촉매로서 HCI과 NH4OH를 이용한 2 step acid/base catalyzed공정에 의해 SiO2 및 PDMS/SiO2 xerogel의 기공 크기 및 분포를 제어하였다. 촉매로서 HCl이 첨가된 SiO2 및 PDMS/SiO2 xerogel에서 PH는 2.3~2.5, gel화 시간 12~13일, xerogel의 모양은 Pellet형태를 나타내나 HCl/NH4OH 몰비가 증가하면 pH 및 gel화 시간은 급격히 감소하고 xerogel의 모양도 pellet형과 column형으로 뚜렷하게 구분된다. 이는 반응의 최종용액이 산성이면 가수분해속도가 축합속도보다 빠르게 진행되어 9el화에 오랜 시간이 소요되어 pellet형의 Xerogel이 되나 약산성에서는 축합속도가 가수분해속도보다 빠르게 되어 gel화 시간은 빨라지고 column형의 xerogel이 되기 때문이다 SiO2 및 PDMS/SiO2, xerogel의 표면적 및 평균기공크기는 HCl/NH4OH 몰비가 증가함에 따라 각각 400→600(m2/g)과 15→28Å 으로 변화하고 단일 기공크기분포를 갖는다. 이는 초기에 HCl에 의해 가수분해된 종이 NH4OH에 의해 축합속도가 촉진되어 silica의 골격구조가 낮은 온도에서 규칙적으로 형성되고 열처리에 의해 균일한 기공으로 되었기 때문이다.

본 연구는 한국조립금속업체들의 對中후속투자가 어떠한 요인들에 의해 결정되어 왔는가를 조직학습관점에서 통합적으로 분석하고 있다. 우선 Logit Model을 통해 어떠한 초기 조건하에서 후속투자가 수행되는가를 분석한 다음, Repeated Hazard Model을 통해 시간의 경과에 따라 여러 독립변수들이 후속투자 결정에 어떻게 다른 상대적 영향을 미치는가를 분석하였다. Logit Model 분석 결과, 시장 및 환경요인들 보다는 모기업의 국제활동 경험, 모기업의 매출액, 대기업 소속여부 등과 같은 기업요인 변수들이 초기투자기업들의 후속투자 결정에 더 유의한 영향을 미치는 것으로 나타났다. Repeated Hazard Model 분석 결과, 기업요인의 경우 조직학습을 통한 지식·경험의 활용 가능성을 알아볼 수 있는 모기업의 국제경험, 자회사 현지경험, 계열기업여부, 진입방식 등의 변수가 후속투자 결정에 유의하면서도 상대적으로 강한 영향을 미치는 것으로 나타났고, 모회사의 매출액, 자회사의 매출액변수도 통계적으로 유의한 영향을 미치고 있는 것으로 분석되었다. 즉, 모기업의 국제화 경험이 많을수록, 자회사의 현지시장 경험이 많을수록, 그리고 대기업에 속해 있는 자회사일수록 모기업과 여타 계열사의 국제화 경험·지식 등의 활용가능성이 높아 후속투자 가능성이 더 높음을 알 수 있었다. 반면 시장요인과 환경요인의 경우 소비증가 변수만이 유의하게 나타났는데, 한국조립금속업체들이 중국내 시장환경 변화에 대해 긍정적으로 반응하면서 후속투자를 행한다는 것을 알 수 있었다.

This study was conducted to investigate the application of ATP bioluminescence to measure the degree of microbial contamination from raw meat, meat processing and milk processing lines. Samples collected from slaughter house, meat and milk processing plants were tested for estimation of bacterial number by using ATP bioluminescence and conventional method. The former result was transffered to R-mATP value(log RLU/㎖), and the latter transffered to CFU(log/㎖). Correlation coefficient(r) between aerobic counts(CFU, log/㎖) and R-mATP(log RLU/㎖) value was 0.93(n=408). R-mATP of aerobic counts from beef, pork, chicken was 0.93(n=220), and that was 0.93(n=187) between meat processing and dairy processing plants. In addition, Correlation coefficient(r) between aerobic counts and R-mATP was 0.87(n=252) under 1 × 10^5/㎖ of bacterial count and 0.74(n=152) over l0^5 respectively.