946 research outputs found

    Charging mechanism in a SiO 2 matrix embedded with Si nanocrystals

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    One of the applications of a Si nanocrystals (nc-Si) embedded in a Si O2 matrix is in the area of nonvolatile memory devices based on the charge storage in the material system. However, whether the charge trapping mainly occurs at the nc-SiSi O2 interface or in the nc-Si is still unclear. In this work, by x-ray photoemission spectroscopy analysis of the Si 2p peaks, the concentrations of both the nc-Si and the Si suboxides that exist at the nc-SiSi O2 interface are determined as a function of thermal annealing, and the charging effect is also measured by monitoring the shift of the surface C 1s peak. It is observed that the annealing-caused reduction of the total concentration of the interfacial suboxides is much faster than that of both the C 1s shift and the nc-Si concentration. In addition, the trend of the C 1s shift coincides with that of the nc-Si concentration. The results suggest that the Si nanocrystal, rather than the nc-SiSi O2 interface, plays the dominant role in the charging effect. © 2006 American Institute of Physics.published_or_final_versio

    多天线GPS软件系统

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    Author name used in this publication: 黄丁发, HUANG Ding-faAuthor name used in this publication: 丁晓利, DING Xiao-liAuthor name used in this publication: 陈永奇Title in Traditional Chinese: 多天線GPS軟體系統Journal title in Traditional Chinese: 科學通報2000-2001 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

    Dynamic model for landsliding monitoring under rigid body assumption

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    Author name used in this publication: 朱建军Author name used in this publication: 丁晓利, DING Xiao-liAuthor name used in this publication: 陈永奇Journal title in Traditional Chinese: 中國有色金屬學會會刊 (英文版)2000-2001 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

    Application and evaluation of a GPS multi-antenna system for dam deformation monitoring

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    Author name used in this publication: Yongqi Chen2004-2005 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

    Potential benefits of GPS/GLONASS/GALILEO integration in an urban canyon – Hong Kong

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    Author name used in this publication: Yongqi Chen2010-2011 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

    Novel OCRL mutations in children with Lowe Syndrome

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    Background: Lowe syndrome is a rare X-linked recessive hereditary disease caused by mutations of the OCRL gene, which encodes an inositol polyphosphate-5-phosphatase. The disease is clinically characterized by congenital cataracts, psychomotor retardation, and proximal tubulopathy. Methods: We retrospectively reviewed three unrelated Chinese patients with Lowe syndrome, clinically diagnosed by the abnormalities of eyes, nervous system, and kidneys. Genetic analysis of the OCRL gene was done for the three patients as well as their family members. Results: Three OCRL gene mutations were detected in our study. Two of the mutations, g.1897delT in exon 18 (patient 1) and g.1470delG in exon 15 (patient 2), were novel. A missense mutation (p.Y513C) in exon 15, which had been reported previously, was found in patient 3. The mothers of all patients were heterozygous carriers of the respective mutations. Conclusion

    使用InSAR建立DEM的试验研究

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    Author name used in this publication: 刘国祥Author name used in this publication: 丁晓利, DING Xiao-liAuthor name used in this publication: 陈永奇Author name used in this publication: 李志伟, LI Zhi-weiTitle in Traditional Chinese: 使用InSAR建立DEM的試驗研究Journal title in Traditional Chinese: 測繪學報Author name used in this publication: LI Zhi-lin2001-2002 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

    Deformation analysis of the unified lunar control networks

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    2009-2010 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

    星载SAR复数图像的配准

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    Author name used in this publication: 刘国祥Author name used in this publication: 丁晓利, DING Xiao-liAuthor name used in this publication: 陈永奇Author name used in this publication: 章国宝Title in Traditional Chinese: 星載SAR複數圖像的配准Journal title in Traditional Chinese: 測繪學報2000-2001 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
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