Yajie Zhang

Shanxi Academy of Medical Sciences

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Jinghua Yin

State Key Laboratory of Polymer Physics and Chemistry

Zhihui Yin

Heilongjiang Academy of Forestry

Zhixiang Wei

National Center for Nanoscience and Technology

Yadong Jiang

University of Electronic Science and Technology of China

Huiling Tai

University of Electronic Science and Technology of China

Zaihua Duan

University of Electronic Science and Technology of China

Lifeng Chi

Soochow University

Bohao Liu

Xiangtan University

Qingxin Tang

Northeast Normal University

Wenping Hu

Collaborative Innovation Center of Chemical Science and Engineering Tianjin

Cooperative Institutions

Chinese Academy of Sciences

102

University of Chinese Academy of Sciences

Peking University

University of Science and Technology of China

Tianjin University

Soochow University

University of Electronic Science and Technology of China

Beijing National Laboratory for Molecular Sciences

Sichuan University

Xi'an Jiaotong University

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Preparation and characterization of ethylene‐propylene copolymer grafted with acrylamido tertiary butyl sulfonic acid

Journal of Applied Polymer Science (1997)

Zhihui Yin Yajie Zhang Xiaomin Zhang Tianhai Na Jinghua Yin

Grafting of acrylamido tertiary butyl sulfonic acid (ATBS) onto ethylene-polypropylene copolymer (EPM) was carried out by using a reactive processing method. The grafting copolymer was characterized by means of WAXD, FT-IR, ESCA, and DSC. Improved thermal stability was observed for graft copolymer. Effects of the monomer and the initiator concentrations, reactive temperature, and time on grafting degree were investigated. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 63: 1299–1302, 1997

Sulfonic acid

Polypropylene

Thermal Stability

10.1002/(sici)1097-4628(19970307)63:10<1299::aid-app8>3.3.co;2-f

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How Does the Hydrogen Bonding Interaction Influence the Properties of Furan-Based Epoxy Resins

Industrial & Engineering Chemistry Research (2017)

Xiaobin Shen Xiaoqing Liu Jinyue Dai Yuan Liu Yajie Zhang

A biobased epoxy 2,5-bis[(2-oxiranylmethoxy)methyl]-furan (BOF) together with its petroleum-based analogues, 1,4-bis[(2-oxiranylmethoxy)methyl]-benzene (p-BOB) and 1,3-bis[(2-oxiranylmethoxy)methyl]-benzene (m-BOB), have been synthesized. After their chemical structures were identified by nuclear magnetic resonance (1H NMR and 13C NMR), they were cured by the petroleum-based 4,4′-diaminodiphenylmethane and biobased 5,5′-methylenedifurfurylamine, respectively. Thermal and mechanical properties of the cured resins were investigated by differential scanning calorimetry, thermogravimetric analyzer and dynamic mechanical analysis. Especially, hydrogen bonding interactions in the different cured systems were studied by Fourier transform infrared spectroscopy. Based on the structure–properties relationship investigation, it could be concluded that it was the hydrogen bonding interaction playing a key role in determining the thermal properties of the furan-based epoxy resins.

Furan

Thermogravimetric analysis

Proton NMR

10.1021/acs.iecr.7b02901

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Citations (43)

Morphological, thermal, and mechanical properties of polypropylene/polycarbonate blend

Journal of Applied Polymer Science (1997)

Zhihui Yin Xiaomin Zhang Yajie Zhang Jinghua Yin

This work deals with the effect of compatibilizer on the morphological, thermal, rheological, and mechanical properties of polypropylene/polycarbonate (PP/ PC) blends. The blends, containing between 0 to 30 vol % of polycarbonate and a compatibilizer, were prepared by means of a twin-screw extruder. The compatibilizer was produced by grafting glycidyl methacrylate (GMA) onto polypropylene in the molten state. Blend morphologies were controlled by adding PP-g-GMA as compatibilizer during melt processing, thus changing dispersion and interfacial adhesion of the polycarbonate phase. With PP-g-GMA, volume fractions increased from 2.5 to 20, and much finer dispersions of discrete polycarbonate phase with average domain sizes decreased from 35 to 3 μm were obtained. The WAXD spectra showed that the crystal structure of neat PP was different from that in blends. The DSC results suggested that the degree of crystallization of PP in blends decreased as PC content and compatibilizer increased. The mechanical properties significantly changed after addition of PP-g-GMA. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 63: 1857–1863, 1997

Polycarbonate

Polypropylene

Glycidyl methacrylate

Thermal Stability

10.1002/(sici)1097-4628(19970328)63:13<1857::aid-app19>3.0.co;2-v

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Citations (35)

Two-tier price membership mechanism design based on user profiles

Electronic Commerce Research and Applications (2022)

Li Hu Yajie Zhang S.H. Chung Wang Lei

Value (mathematics)

Mechanism Design

Price mechanism

10.1016/j.elerap.2022.101130

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Citations (14)

Recent progress on surface chemistry I: Assembly and reaction

Chinese Chemical Letters (2024)

Xin Li Zhen Xu Donglei Bu Jinming Cai Huamei Chen

Biomolecule

Chirality

10.1016/j.cclet.2024.110055

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Citations (8)

Model test and discrete element method simulation of shield tunneling face stability in transparent clay

Frontiers of Structural and Civil Engineering (2021)

Huayang Lei Yajie Zhang Yao Hu Yingnan Liu

10.1007/s11709-020-0704-6

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Citations (27)

Research developments in cultivation modes for microalgae.

Liling Jiang Yajie Zhang Xiaoping Li Rongbo Guo

Cultivation modes are important for improvement of microalgae growth rate.Batch pro-cess、fed-batch process、semi-continuous process and continuous process are the four main culti-vation modes widely used for microalgae culture.This paper reviewed the recent developments of the four cultivation modes and summarized their applications and actual impacts on increasing mi-croalgae growth rate.This review will be helpful for the developments and improvements of mass cultivation techniques of microalgae,which should be very important for the application of appro-priate cultivation strategy in microalgae cultivation for biofuel production.

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Hybrid bipolar transistors and inverters of nanoribbon crystals

Applied Physics Letters (2009)

Yajie Zhang Qingxin Tang Hongxiang Li Wenping Hu

A “hybrid” structure based on organic (p-type) and inorganic (n-type) single crystalline nanoribbons was introduced for the fabrication of organic bipolar field-effect transistors and inverters. The devices were fabricated based on individual organic single crystalline nanoribbon of copper phthalocyanine as p-channel and individual inorganic single crystalline nanoribbon of zinc oxide as n-channel. All transistors exhibited high performance and nice bipolar behavior with hole mobility up to ∼0.62 cm2/V s. With the integration of n- and p- transistors together organic single crystalline complementary inverters were fabricated. The maximum gain of the inverters reached 29. The high performance of the transistors and inverters indicated the potential application of the hybrid structure and nanoribbon crystals for organic electronics.

Heterostructure-emitter bipolar transistor

10.1063/1.3141734

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Citations (16)

3DT-CM: A Low-complexity Cross-matching Algorithm for Large Astronomical Catalogues Using 3d-tree Approach

Research in Astronomy and Astrophysics (2023)

Yifei Mu Ce Yu Chao Sun Kun Li Yajie Zhang

Abstract Location-based cross-matching is a preprocessing step in astronomy that aims to identify records belonging to the same celestial body based on the angular distance formula. The traditional approach involves comparing each record in one catalog with every record in the other catalog, resulting in a one-to-one comparison with high computational complexity. To reduce the computational time, index partitioning methods are used to divide the sky into regions and perform local cross-matching. In addition, cross-matching algorithms have been adopted on high-performance architectures to improve their efficiency. But the index partitioning methods and computation architectures only increase the degree of parallelism, and cannot decrease the complexity of pairwise-based cross-matching algorithm itself. A better algorithm is needed to further improve the performance of cross-matching algorithm. In this paper, we propose a 3d-tree-based cross-matching algorithm that converts the angular distance formula into an equivalent 3d Euclidean distance and uses 3d-tree method to reduce the overall computational complexity and to avoid boundary issues. Furthermore, we demonstrate the superiority of the 3d-tree approach over the 2d-tree method and implement it using a multi-threading technique during both the construction and querying phases. We have experimentally evaluated the proposed 3d-tree cross-matching algorithm using publicly available catalog data. The results show that our algorithm applied on two 32-core CPUs achieves equivalent performance than previous experiments conducted on a six-node CPU-GPU cluster.

Tree (set theory)

10.1088/1674-4527/acee50

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A miniaturized colorimetric-photoacoustic dual-mode device for point-of-care testing of ascorbic acid and ascorbate oxidase

Analytica Chimica Acta (2025)

Yajie Zhang Baiyan Zhang Zhiliang Guo Siyu Lu Yun‐Lan Li

Point-of-Care Testing

Dehydroascorbic acid

Point of care

10.1016/j.aca.2025.343685

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