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  1. No Access

    Article

    Prediction of Shale Gas Production by Hydraulic Fracturing in Changning Area Using Machine Learning Algorithms

    Machine learning has been widely used for the production forecasting of oil and gas fields due to its low computational cost. This paper studies the productivity prediction of shale gas wells with hydraulic fr...

    Dongshuang Li, Shaohua You, Qinzhuo Liao, Mao Sheng… in Transport in Porous Media (2023)

  2. No Access

    Article

    Multilevel Declassification Method for Geographic Vector Field Data: A Geometric Algebra Approach

    There is increasing demand for multi-level declassification of geographic vector field data in the big data era. Different from traditional encryption, declassification does not aim at making the original data...

    Wen Luo, Yun Wang, Xueying Zhang, Dongshuang Li… in Advances in Applied Clifford Algebras (2022)

  3. No Access

    Chapter and Conference Paper

    Geometric Algebra-Based Multilevel Declassification Method for Geographical Field Data

    The diversity of GIS application patterns leads to the demand for multilevel GIS data declassification. For example, Publicly used data must be declassified to hide confidential spatial information. The revers...

    Wen Luo, Dongshuang Li, Zhaoyuan Yu, Yun Wang… in Advances in Computer Graphics (2020)

  4. No Access

    Article

    MVTree for Hierarchical Network Representation Based on Geometric Algebra Subspace

    Most hierarchical representation methods are designed from engineering perspectives, lacking an appropriate mathematical foundation to integrate different problem definitions. To solve this problem, a hierarch...

    Shuai Zhu, Shuai Yuan, Dongshuang Li, Wen Luo… in Advances in Applied Clifford Algebras (2018)

  5. No Access

    Article

    Synthesis of hyperbranched copolymers by combining enzymatic ring-opening polymerization and ATRP from a novel bifunctional initiator

    The hyperbranched aliphatic polyester P(ε-CL) was synthesized by means of Novozyme435-catalyzed ring-opening polymerization (ROP) of BHB (2, 2-bis(hydroxymethyl) butyric acid). The chains ended with hydroxyl o...

    Peng Al, Liang Chen, Dehua Hu, Yanhua Chen, Dongshuang Li… in Chinese Science Bulletin (2006)

  6. No Access

    Article

    Synthesis and characterization of triblock copolymer by combining enzymatic condensation polymerization and ATRP

    The polyester poly(1,10-decanediol /1, 10-sebacate) (PSD) was synthesized by means of Novozyme 435 catalyzed condensation polymerization of 1,10-decanediol and 1,10-sebacic acid. Both hydroxyl chain ends of th...

    Dongshuang Li, Ke Sha, Yapeng Li, Shuwei Wang, **gyuan Wang in Chinese Science Bulletin (2006)

  7. No Access

    Article

    Synthesis of diblock copolymer poly(10-hydroxydecanoic acid)/polystyrene by combining enzymatic condensation polymerization and ATRP

    The diblock copolymers poly(10-hydroxydecanoic acid)-block-polystyrene (PHDA-b-PSt) were synthesized by combining enzymatic condensation polymerization of 10-hydroxydecanoic acid (HDA) and atom transfer radical p...

    Dongshuang Li, Ke Sha, Yapeng Li, **aotian Liu, Wei Wang, Shuwei Wang… in Polymer Bulletin (2006)

  8. No Access

    Article

    Synthesis and characterization of diblock copolymer by enzymatic ring-opening polymerization and ATRP from a novel bifunctional initiator

    A new method is reported for synthesizing AB-type diblock copolymer polycaprolactone-block-polystyrene (PCL-b-PSt) from a novel bifunctional initiator 2.2.2-trichloroethanol (TCE) by combining two different polym...

    Ke Sha, Dongshuang Li, Shuwei Wang, Lu Qin, **gyuan Wang in Polymer Bulletin (2005)

  9. No Access

    Article

    Synthesis and characterization of diblock and triblock copolymer by enzymatic ring-opening polymerization of ε-caprolactone and ATRP of styrene

    Diblock and triblock copolymer of ε-caprolactone(ε-CL) and styrene(St) were obtained by the combination of two different polymerization process, namely enzymatic ring-opening polymerization(ROP) and atom trans...

    Ke Sha, Lu Qin, Dongshuang Li, **aotian Liu, **gyuan Wang in Polymer Bulletin (2005)