• 제목/요약/키워드: Multiple Effect

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A Study on Infant Compliance According to the Types of Care and Multiple Attachments (타인양육 유형과 다중애착안정성 유형에 따른 영아의 순응성 연구)

  • Baek, Ji-Hye;Cho, Bok-Hee
    • Korean Journal of Child Studies
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    • 제31권1호
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    • pp.147-162
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    • 2010
  • The purpose of the present study was to investigate the effect of the types of care and multiple attachments on the issue of infant compliance. The subjects of this study were 52 infants (1-2 years old) and their caregivers (grandparents, baby sitters, daycare teachers) and their mothers. The results of this study are as follows : (1) The type of care and multiple attachments types affected infant compliance in relation to the mother. In the daycare center, the infants showed more signs of compliance than whilst in the care of the grandparents. Moreover, with the secure-secure, secure-insecure types, the infant showed more signs of compliance than with the insecure-secure, insecure-insecure types. (2) The types of care affected infant compliance in relation to the caregiver. In the daycare center, the infant showed more signs of compliance than in the care of both the grandparents or baby sitter. (3) Multiple attachment types were found to affect infant compliance in relation to strangers.

NON-SYNDROME MULTIPLE SUPERNUMERARY TEETH : A CASE REPORT (NON-SYNDROME MULTIPLE SUPERNUMERARY TEETH의 증례보고)

  • Lee, Dong-Hyuck;Kim, Hyun-Jung;Nam, Soon-Hyeun;Kim, Young-Jin
    • Journal of the korean academy of Pediatric Dentistry
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    • 제24권3호
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    • pp.487-494
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    • 1997
  • It is rare to find multiple supernumerary teeth in individuals with no other associated diseases or syndromes. 'Non-Syndrome multiple supernumerary teeth' reviewed by Yusof(1990) have more frequency of occurrence in the mandibular region. Especially, mandibular premolar region appears to be the site of predilection for no n-syndrome multiple supernumerary teeth. Also, these may develop after most permanent teeth have erupted, thus their effect upon the occlusion is limited. In this case, the patient had 20 supernumerary teeth without other associated diseases or syndromes. All of the supernumerary teeth were impacted, and thirteen of them were found in the premolar region. In the radiographic and clinical finding, other specific complication resulted from the supernumerary teeth weren't observed.

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Multiple shRNA expressing vector enhances efficiency of gene silencing

  • Song, Jun;Giang, An;Lu, Yingchun;Pang, Shen;Chiu, Robert
    • BMB Reports
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    • 제41권5호
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    • pp.358-362
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    • 2008
  • RNA interference (RNAi) is the process of sequence-specific gene silencing. However, RNAi efficiency still needs to be improved for effective inhibition of target genes. We have developed an effective strategy to express multiple shRNAs (small hairpin RNA) simultaneously using multiple RNA Polymerase III (Pol III) promoters in a single vector. Our data demonstrate that multiple shRNAs expressed from Pol III promoters have a synergistic effect in repressing the target gene. Silencing of endogenous cyclophilin A (CypA) or key HIV viral genes by multiple shRNAs results in significant inhibition of the target gene.

Fracture Mechanics Analysis of Multiple Load Path Plate (다중 균열 보강 판재에 관한 파괴 역학적 해석)

  • Han, Moon-Sik;Lee, Yang-Sub
    • Journal of the Korean Society for Precision Engineering
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    • 제18권10호
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    • pp.109-115
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    • 2001
  • The compliance approach to the problem of load sharing between a cracked plate and multiple plate used to bridge the crack. The theory is validated by using calculated stress intensity factors for the multiple load path plate to reduce experimentally observed growth rate to a common base. Calculations are them made on the effect of multiple load path plate width on fatigue crack retardation in order to demonstrate the predictive capability of the technique.

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Implementation of RS232C Serial Communication by CSMA protocol (충돌검지 다중접속(CSMA) 프로토콜에 의한 RS232C 직렬통신의 구현)

  • Kwak, Hee-Soo;Han, Kyong-Ho
    • Proceedings of the KIEE Conference
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    • 대한전기학회 1998년도 하계학술대회 논문집 G
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    • pp.2473-2475
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    • 1998
  • In this paper, we implemented RS232C serial communication by the 2 wires(Data,GND), and multiple access, by the applying Collision Sensing Multiple Access(CSMA) Protocol. Multiple access is implemented by assigning a unique ID to each controller. The multiple access control operation starts by sending a command packet from a host to another host and the command packet is composed of ID bytes of source and target host computer, data bytes and the check sum, byte. In host computer, after sending command packet, the collision from loop back data. If collision is detected, it means a command packet was collided with another command packet for another host. The packet communication of the controller enables the multiple acces of the controller through the common serial data link. The application of this serial communication through CSMA protocol and the usage of two wires, have an effect on saving the wires and convenient of layout work.

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Effect of Soil Factors on Vegetation Values of Salt Marsh Plant Communities: Multiple Regression Model

  • Ihm, Byung-Sun;Lee, Jeom-Sook;Kim, Jong-Wook;Kim, Joon-Ho
    • Journal of Ecology and Environment
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    • 제29권4호
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    • pp.361-364
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    • 2006
  • The objective of the current study was to characterize and apply multiple regression model relating to vegetation values of the plant species over salt marshes. For each salt marsh community, vegetation and soil variables were investigated in the western coast and the southern coast in South Korea. Osmotic potential of soil and $Cl^-$ content of soil as independent variable had positive and negative influences on vegetation values. Multiple regression model showed that vegetation values of 14 coastal plant communities were determined by pH of soil, osmotic potential of soil and sand content. The multiple regression equation may be applied to the explanation of distribution and abundance of plant communities with exiting ordination plots.

3D Environmental Walkthrough Using The Integration of Multiple Segmentation Based Environment Models (다중 분할 기반 환경 모델의 통합에 의한 3차원 환경 탐색)

  • Ryoo, Seung-Taek
    • The Journal of Korean Association of Computer Education
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    • 제8권1호
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    • pp.105-115
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    • 2005
  • An environment model that is constructed using a single image has the problem of a blurring effect caused by the fixed resolution, and the stretching effect of the 3D model caused when information that does not exist on the image occurs due to the occlusion. This paper introduces the registration and integration method using multiple images to resolve the above problem. This method can represent parallax effect and expand the environment model to represent wide range of environment. The segmentation-based environment modeling method using multiple images can build a detail model with optimal resolution.

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Study on the Wake Roll-up Behind Multiple Wings in Formation Flight (편대비행 하는 항공기 날개들에서 발생하는 후류말림 연구)

  • Han, Cheolheui
    • Journal of Institute of Convergence Technology
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    • 제10권1호
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    • pp.1-5
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    • 2020
  • The wake shapes behind wings in formation flight are very important to the aerodynamics and performances of aircrafts. In the present study, a discrete vortex methood is extended to handle the wake rollups behind multiple wings. It was found that the relative distance between the wings and the rotational direction of the wingtip vortices have significant effect on the movement of the wingtip vortices. When the wings are close to each other, the wingtip vortices moved faster than the wings of large relative distances. The vortex pair of opposite signs generated from each wingtip has an effect of moving the wingtip vortices upward. The relative height between the wings has an effect of moving the wingtips along the centerline of each vortex. The wakeshape behind multiple wings is a function of the relative distances and thus is dependent on the configuration of the formation flight. In the futhre, a study on the vortex movement pattern will be studied.

Multiple Imputation Reducing Outlier Effect using Weight Adjustment Methods (가중치 보정을 이용한 다중대체법)

  • Kim, Jin-Young;Shin, Key-Il
    • The Korean Journal of Applied Statistics
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    • 제26권4호
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    • pp.635-647
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    • 2013
  • Imputation is a commonly used method to handle missing survey data. The performance of the imputation method is influenced by various factors, especially an outlier. The removal of the outlier in a data set is a simple and effective approach to reduce the effect of an outlier. In this paper in order to improve the precision of multiple imputation, we study a imputation method which reduces the effect of outlier using various weight adjustment methods that include the removal of an outlier method. The regression method in PROC/MI in SAS is used for multiple imputation and the obtained final adjusted weight is used as a weight variable to obtain the imputed values. Simulation studies compared the performance of various weight adjustment methods and Monthly Labor Statistic data is used for real data analysis.

Analysis for the magneto-optical Kerr effect of metal multilayers by optical multiple reflection (다중반사에 의한 금속다층막의 자기광학 Kerr 효과 분석)

  • 최영준;서용원
    • Journal of the Korean Magnetics Society
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    • 제4권4호
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    • pp.307-312
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    • 1994
  • The magneto-optical Kerr effect due to the (Fe,Co)/(Pd,Pt,Cu,Ag) multilayer film is calculated considering of multiple reflection effect, and the calculated Kerr spectrum is compared to the reported experimental value. In case of Co/Pd, the reliance of composition and the variable tendency of magneto-optical Kerr rotation angle for Co thickness fully coresponds to experimantal and theoretical value. The theoretical Kerr spectrum of Fe/Cu and Fe/Ag multilayer films show the peaks near the Cu and Ag optical ansorption band in accordance with the experiment. But in case of Co/Pt, the increase tendency of Kerr rofation with decreasing wavelength reported by experiments could not be explained by the optical multiple interference. This difference of theoretical and experimental Kerr spectrum of Co/Pt film might be related with the change of electronic structure of Co and/or Pt from their bulk state.

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