Search results for: Xuqing Zhang

Items from 1 to 20 out of 49 results

article

Prominent energy storage density and efficiency of Na_0.5Bi_0.5TiO₃‐based ceramics via multiscale amelioration strategy

Zhemin Chen, Yongping Pu, Yating Ning, Yiting Hui, more

Journal of the American Ceramic Society > 107 > 4 > 2360 - 2370

Eco‐friendly ceramic capacitors gradually become an important section of pulsed power devices. However, the synchronous realization of ultra‐high energy storage density (W_rec > 6 J/cm³) and efficiency (η > 90%) is difficult. Thus, a novel multiscale amelioration strategy in Na_0.5Bi_0.5TiO₃‐based ceramics is proposed to achieve ultra‐high energy storage density and efficiency. The multiscale amelioration...

article

A locking‐free shifted inverse iteration based on multigrid discretization for the elastic eigenvalue problem

Xuqing Zhang, Yidu Yang, Yu Zhang

Mathematical Methods in the Applied Sciences > 44 > 7 > 5821 - 5838

We propose a locking‐free shifted inverse iteration based on multigrid discretization and prove the error estimates of eigenvalues and eigenfunctions. Besides, we also present a multigrid correction scheme based on the multilevel correction. Numerical experiments coincide in our theoretical analysis and validate that our scheme is highly efficient.

article

Scene Classification of High-Resolution Remotely Sensed Image Based on ResNet

Mingchang Wang, Xinyue Zhang, Xuefeng Niu, Fengyan Wang, more

Journal of Geovisualization and Spatial Analysis > 2019 > 3 > 2 > 1-9

Remote sensing technology for earth observation is becoming increasingly important with advances in economic growth, rapid social development and the many factors accompanying economic development. High spatial resolution remote sensing images come with distinct layers, clear texture and rich spatial information, and have broad areas of application. Deep learning models have the ability to acquire...

article

Hierarchical MoS₂/Carbon Composite Microspheres as Advanced Anodes for Lithium/Sodium‐Ion Batteries

Wangjia Tang, Xiuli Wang, Yu Zhong, Dong Xie, more

Chemistry – A European Journal > 24 > 43 > 11220 - 11226

It is crucial to design advanced electrodes with large Li/Na‐ion storage capacities for the development of next‐generation battery systems. Herein, hierarchical MoS₂/C composite microspheres were constructed by facile template‐free self‐assembly sulfurization plus post‐carbonization. Cross‐linked MoS₂ nanosheets and outer carbon layer are organically combined together to form composite microspheres...

article

On‐treatment changes of liver stiffness at week 26 could predict 2‐year clinical outcomes in HBV‐related compensated cirrhosis

Shanshan Wu, Yuanyuan Kong, Hongxin Piao, Wei Jiang, more

Liver International > 38 > 6 > 1045 - 1054

Background & Aims It is unclear whether liver stiffness measurement (LSM) dynamic changes after anti‐HBV treatment could predict the risk of liver‐related events (LREs), particularly in patients with HBV‐related compensated cirrhosis. Methods Treatment‐naïve patients with HBV‐related compensated cirrhosis were enrolled. All patients were under entecavir‐based antiviral therapy, and followed...

article

Pretreatment microRNA levels can predict HBsAg clearance in CHB patients treated with pegylated interferon α-2a

Yanlin Yang, Ming Liu, Ying Deng, Yan Guo, more

Virology Journal > 2018 > 15 > 1 > 1-8

Background To investigate the predictive capability of microRNAs (miRNAs) prior treatment for HBsAg clearance in chronic hepatitis B (CHB) treated with pegylated interferon α-2a (PEG-IFNα-2a). Methods The treatment effect was determined by HBsAg clearance and subjects were classified into HBsAg clearance group and non HBsAg clearance group. Differential miRNAs expression in peripheral blood mononuclear...

article

Biomass-derived carbon/silicon three-dimensional hierarchical nanostructure as anode material for lithium ion batteries

Tong Shen, Dong Xie, Wangjia Tang, Donghuang Wang, more

Materials Research Bulletin > 2017 > 96 > P4 > 340-346

Three-dimensional hierarchical silicon/carbon nanostructure (3D AC-Si) is applied as the anode material for lithium-ion batteries (LIBs), where encapsulated Si NPs are uniformly bonded over interconnected carbon framework. The unique structure benefits from the binary functions of the naturally conductive network of biomass carbon and the in-suit carbon coating of dopamine. This 3D AC-Si composite...

article

Construction of Nitrogen‐Doped Carbon‐Coated MoSe₂ Microspheres with Enhanced Performance for Lithium Storage

Wangjia Tang, Dong Xie, Tong Shen, Xiuli Wang, more

Chemistry – A European Journal > 23 > 52 > 12924 - 12929

Exploring advanced anode materials with highly reversible capacity have gained great interests for large‐scale lithium storage. A facile two‐step method is developed to synthesize nitrogen‐doped carbon coated MoSe₂ microspheres via hydrothermal plus thermal polymerization. The MoSe₂ microspheres composed of interconnected nanoflakes are homogeneously coated by a thin nitrogen‐doped carbon (N‐C) layer...

article

Performance Enhancement of a Sulfur/Carbon Cathode by Polydopamine as an Efficient Shell for High‐Performance Lithium–Sulfur Batteries

Xuqing Zhang, Dong Xie, Yu Zhong, Donghuang Wang, more

Chemistry – A European Journal > 23 > 44 > 10610 - 10615

Lithium–sulfur batteries (LSBs) are considered to be among the most promising next‐generation high‐energy batteries. It is a consensus that improving the conductivity of sulfur cathodes and impeding the dissolution of lithium polysulfides are two key accesses to high‐performance LSBs. Herein we report a sulfur/carbon black (S/C) cathode modified by self‐polymerized polydopamine (pDA) with the assistance...

article

Design, synthesis and SAR of a novel series of heterocyclic phenylpropanoic acids as GPR120 agonists

Xuqing Zhang, Chaozhong Cai, Michael Winters, Michele Wells, more

Bioorganic & Medicinal Chemistry Letters > 2017 > 27 > 15 > 3272-3278

A novel series of 5-membered heterocycle-containing phenylpropanoic acid derivatives was discovered as potent GPR120 agonists with low clearance, high oral bioavailability and in vivo antidiabetic activity in rodents.

article

Evaluation of anti-diabetic effect and gall bladder function with 2-thio-5-thiomethyl substituted imidazoles as TGR5 receptor agonists

Xuqing Zhang, Zhihua Sui, Jack Kauffman, Cuifen Hou, more

Bioorganic & Medicinal Chemistry Letters > 2017 > 27 > 8 > 1760-1764

A novel series of 2-thio-5-thiomethyl substituted imidazoles was discovered to be potent TGR5 agonists that possessed glucose-lowering effects while inhibiting gall bladder emptying in mice.

article

Carbon fiber-incorporated sulfur/carbon ternary cathode for lithium–sulfur batteries with enhanced performance

Xuqing Zhang, Dong Xie, Donghuang Wang, Tao Yang, more

Journal of Solid State Electrochemistry > 2017 > 21 > 4 > 1203-1210

Smart construction of advanced sulfur cathodes is indispensable for the development of high performance lithium–sulfur (Li–S) batteries. Hence, we report a novel modified sulfur cathode using conductive carbon black as carrier to load sulfur and vapor grown carbon fiber as bridges to connect sulfur/carbon black clusters. The carbon fiber-incorporated sulfur/carbon ternary electrode exhibits superior...

chapter

Lunar Crater Rims Detection from Chang’s Orbiter Data Based on a Grid Environment

Shengbo Chen, Xuqing Zhang, Shengye Jin

Lecture Notes in Computer Science > High Performance Computing and Applications > Contributed Papers > 102-107

The surface of the moon is scarred with millions of lunar crater, which are the remains of collisions between an asteroid, comet, or meteorite and the moon with different sizes and shapes. With the launch of Chang’s orbiter, it is available to detect the lunar crater at a high resolution. However, the Chang’s orbiter image is combined by different path/orbit images. In this study, a batch processing...

article

Preparation of polycarboxylate-based superplasticizer and its effects on zeta potential and rheological property of cement paste

Ming Liu, Jiaheng Lei, Yao Bi, Xiaodi Du, more

Journal of Wuhan University of Technology-Mater. Sci. Ed. > 2015 > 30 > 5 > 1008-1012

A series of polycarboxylate-based superplasticizers (PCs) with different structures were synthesized and the effects of chemical structure on zeta potential and rheological property of cement paste were studied. Residual monomers in each sample of PCs were quantitatively determined. The property of the polymers in cement was tested by micro-electrophoresis apparatus and R/S rheometer. Results showed...

article

The structural characteristics, age of origin, and tectonic attribute of the Erguna Fault, NE China

Han Zheng, XiaoMeng Sun, DeFeng Zhu, JingXiong Tian, more

Science China Earth Sciences > 2015 > 58 > 9 > 1553-1565

The Erguna Fault runs along the east bank of the Erguna River in NE China and is a large-scale ductile shear zone comprising granitic mylonites. This paper reports on the geometry, kinematic indicators, and ⁴⁰Ar/³⁹Ar biotite ages of the granitic mylonites,to constrain the structural characteristics, forming age, and tectonic attribute of the Erguna ductile shear zone. The zone strikes NE and records...

article

Texture and tectonic attribute of Cenozoic basin basement in the northern South China Sea

XiaoMeng Sun, XuQing Zhang, GongCheng Zhang, BaoLiang Lu, more

Science China Earth Sciences > 2014 > 57 > 6 > 1199-1211

Based on the drilling data, the geological characteristics of the coast in South China, and the interpretation of the long seismic profiles covering the Pearl River Mouth Basin and southeastern Hainan Basin, the basin basement in the northern South China Sea is divided into four structural layers, namely, Pre-Sinian crystalline basement, Sinian-lower Paleozoic, upper Paleozoic, and Mesozoic structural...

article

Pharmacological characterization of an imidazolopyrazole as novel selective androgen receptor modulator

Xuqing Zhang, George F. Allan, Pamela Tannenbaum, Tifanie Sbriscia, more

Journal of Steroid Biochemistry and Molecular Biology > 2013 > 134 > Complete > 51-58

Selective androgen receptor modulators (SARMs) are androgens with tissue-selective activity. SARMs that have anabolic activity on muscle while having minimal stimulatory activity on prostate are classified as SARM agonists. They can be used to prevent the loss of lean body mass that is associated with cancer, immunodeficiency, renal disease and aging. They may also have anabolic activity on bone;...

article

Reservoir space types and the factors influencing the characteristics of spherulite in rhyolite

JingXiong Tian, XiaoMeng Sun, XuQing Zhang, YongCheng Shou

Science China Earth Sciences > 2013 > 56 > 5 > 748-755

Oil-gas reservoir space types involving spherulite in pyromeride rocks are common in the Lower Cretaceous Shangkuli Formation, the Hailar Basin, China. The main types include interspherulite fissures, interlayer fissures, intraspherulite concentric rings and net microcracks, cavity pores, dissolution pores, and devitrification pores. The first two were found to restrict the effective plane porosity...

article

The discovery of novel cyclohexylamide CCR2 antagonists

James C. Lanter, Thomas P. Markotan, Xuqing Zhang, Nalin Subasinghe, more

Bioorganic & Medicinal Chemistry Letters > 2011 > 21 > 24 > 7496-7501

As a result of further SAR studies on a piperidinyl piperidine scaffold, we report the discovery of compound 44, a potent, orally bioavailable CCR2 antagonist. While having some in vitro hERG activity, this molecule was clean in an in vivo model of QT prolongation. In addition, it showed excellent efficacy when dosed orally in a transgenic murine model of acute inflammation.

article

Design, synthesis and SAR of indazole and benzoisoxazole containing 4-azetidinyl-1-aryl-cyclohexanes as CCR2 antagonists

Xuqing Zhang, Heather Hufnagel, Cuifen Hou, Evan Opas, more

Bioorganic & Medicinal Chemistry Letters > 2011 > 21 > 20 > 6042-6048

A novel series of 4-azetidinyl-1-aryl-cyclohexanes containing indazole or benzoisoxazole moiety have been identified as potent CCR2 antagonists with high selectivity versus hERG.

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INFONA - science communication portal

Search results for: Xuqing Zhang

Prominent energy storage density and efficiency of Na_0.5Bi_0.5TiO₃‐based ceramics via multiscale amelioration strategy

A locking‐free shifted inverse iteration based on multigrid discretization for the elastic eigenvalue problem

Scene Classification of High-Resolution Remotely Sensed Image Based on ResNet

Hierarchical MoS₂/Carbon Composite Microspheres as Advanced Anodes for Lithium/Sodium‐Ion Batteries

On‐treatment changes of liver stiffness at week 26 could predict 2‐year clinical outcomes in HBV‐related compensated cirrhosis

Pretreatment microRNA levels can predict HBsAg clearance in CHB patients treated with pegylated interferon α-2a

Biomass-derived carbon/silicon three-dimensional hierarchical nanostructure as anode material for lithium ion batteries

Construction of Nitrogen‐Doped Carbon‐Coated MoSe₂ Microspheres with Enhanced Performance for Lithium Storage

Performance Enhancement of a Sulfur/Carbon Cathode by Polydopamine as an Efficient Shell for High‐Performance Lithium–Sulfur Batteries

Design, synthesis and SAR of a novel series of heterocyclic phenylpropanoic acids as GPR120 agonists

Evaluation of anti-diabetic effect and gall bladder function with 2-thio-5-thiomethyl substituted imidazoles as TGR5 receptor agonists

Carbon fiber-incorporated sulfur/carbon ternary cathode for lithium–sulfur batteries with enhanced performance

Lunar Crater Rims Detection from Chang’s Orbiter Data Based on a Grid Environment

Preparation of polycarboxylate-based superplasticizer and its effects on zeta potential and rheological property of cement paste

The structural characteristics, age of origin, and tectonic attribute of the Erguna Fault, NE China

Texture and tectonic attribute of Cenozoic basin basement in the northern South China Sea

Pharmacological characterization of an imidazolopyrazole as novel selective androgen receptor modulator

Reservoir space types and the factors influencing the characteristics of spherulite in rhyolite

The discovery of novel cyclohexylamide CCR2 antagonists

Design, synthesis and SAR of indazole and benzoisoxazole containing 4-azetidinyl-1-aryl-cyclohexanes as CCR2 antagonists

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