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4 results on '"Qing-ming Song"'

2. Permeabilities of Cement-Treated Geomaterials Subjected to Varying Water-Cement Ratios.

Author

Hai-lei Kou, Meng Yang, Wang-chun Zhang, Jing-kui Wang, and Qing-ming Song

Subjects
PERMEABILITY, PARTICLES, WATER seepage, BOND strengths, SAND
Abstract

The effect of cement-grouting plays an important role in the engineering property of cement-treated sands. To investigate the effect of different water-cement (w/c) ratios on sand cementation, one dimensional seepage test was conducted with different particle size in this study. The permeability coefficient and uniaxial compressive (UC) strength of treated samples were studied respectively. Test results indicated that with the increase of w/c ratio, the increase of permeability coefficient of sands with particle size 1.25-2.50 mm is larger than that of sands with particle size 2.50- 5.00 mm after 7 days curing time. The UC strength of treated samples decreases with the increase of w/c ratio. The larger the particle size, the smaller the reduction of UC strength. These phenomena are closely related to the formed bond strength between sand particles. [ABSTRACT FROM AUTHOR]

Published
2020

3. Research of the Web Information Extraction Technology on Tourism Theme

Author

Bo Chen, Qing Ming Song, and Qi Shen

Subjects
Web standards, Web analytics, Web server, medicine.medical_specialty, Web development, Web 2.0, computer.internet_protocol, Computer science, Dynamic web page, computer.software_genre, Social Semantic Web, Personalization, World Wide Web, Web design, Web page, Website Parse Template, medicine, Web navigation, Semantic Web Stack, XPath, business.industry, General Medicine, Web application security, Information extraction, Web mapping, Web service, business, Web intelligence, computer, Site map, Web modeling, Tourism
Abstract

With the development of web technology, the use of dynamic web pages and the personalization of page contents become more and more popular. Currently, the information of page is protean and the structures of different pages are vastly different, the traditional thinking of web information extraction technology has been difficult to adapt to the situation. In this paper, proposes a web information extraction method based on extended XPath policy through the analysis of structural features of web pages on tourist theme. This algorithm avoids the defects of traditional web information extraction technology; it is simple, practical, high cleaning efficiency, accuracy, and saving the overhead of the system.

Published
2014

4. Realization of a universal and phase-covariant quantum cloning machine in separate cavities

Author

Bao-Long Fang, Qing-Ming Song, and Liu Ye

Subjects
Physics, Quantum network, Photon, Cloning (programming), Quantum Physics, Atomic and Molecular Physics, and Optics, Quantitative Biology::Cell Behavior, Quantum mechanics, Covariant transformation, Quantum algorithm, Quantum cloning, Quantum information, Realization (systems), Computer Science::Databases
Abstract

We present a scheme to realize a special quantum cloning machine in separate cavities. The quantum cloning machine can copy the quantum information from a photon pulse to two distant atoms. Choosing the different parameters, the method can perform optimal symmetric (asymmetric) universal quantum cloning and optimal symmetric (asymmetric) phase-covariant cloning.

Published
2011

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