Search results for: Yongquan Zhang

Items from 1 to 20 out of 58 results

article

Improvements in the Magnesium Ion Transport Properties of Graphene/CNT‐Wrapped TiO₂‐B Nanoflowers by Nickel Doping

Jingshun Wang, Yongquan Zhang, Guang Liu, Tiandong Zhang, more

Small > 20 > 6 > n/a - n/a

Magnesium‐ion batteries are widely studied for its environmentally friendly, low‐cost, and high volumetric energy density. In this work, the solvothermal method is used to prepare titanium dioxide bronze (TiO₂‐B) nanoflowers with different nickel (Ni) doping concentrations for use in magnesium ion batteries as cathode materials. As Ni doping enhances the electrical conductivity of TiO₂‐B and promotes...

article

Age‐related alterations in the nutritional quality of Arctic grayling (Thymallus arcticus)

Kai Ma, Guangxiang Tong, Cheng Zhao, Jiasheng Yin, more

Journal of Food Science > 87 > 11 > 5107 - 5117

Abstract The biochemical composition of the muscle in Arctic graylings at three age stages was evaluated and compared. For conventional biochemical composition, there was no significant difference in the crude protein content among the three age stages, but the crude fat content in the 1 year old was significantly lower than that of the others (P < 0.05). For amino acids composition, there was...

article

Thermal and Electrical Properties of Epoxy Composites Filled with 3D h‐BN/TOCNF Fillers

Qingguo Chi, Jiaxue Wu, Chao Tang, Changhai Zhang, more

Macromolecular Materials and Engineering > 307 > 4 > n/a - n/a

Epoxy resin (EP) has been widely used in electronic packaging and electrical equipment due to its excellent electrical insulating properties. However, the low thermal conductivity (TC) of EP limits its wider application and needs to be further improved. In this study, 3D hexagonal boron nitride (3D h‐BN) is successfully synthesized by utilizing TEMPO oxidated cellulose nanofiber hydrogels (TOCNF)...

article

Single axonal morphology reveals high heterogeneity in spinocerebellar axons originating from the lumbar spinal cord in the mouse

Yongquan Zhang, Yuanjun Luo, Kazuma Sasamura, Izumi Sugihara

Journal of Comparative Neurology > 529 > 18 > 3893 - 3921

Among the spinocerebellar projections vital for sensorimotor coordination of limbs and the trunk, the morphology of spinocerebellar axons originating from the lumbar cord has not been well characterized compared to those from thoracic and sacral cords. We reconstructed 26 single spinocerebellar axons labeled by biotinylated dextran injections into the gray matter of the lumbar spinal cord in mice...

article

Designing of surface modification and sandwich structure: effective routs to improve energy storage property in polyimide-based composite films

Qingguo Chi, Bo Wang, Tiandong Zhang, Changhai Zhang, more

Journal of Materials Science: Materials in Electronics > 2019 > 30 > 22 > 19956- 19965

The energy density of the capacitors is determined by the breakdown strength and the relative dielectric constant. Polyimide (PI) has high breakdown strength, linear polarization property and high energy efficiency. However, due to the low dielectric constant of PI, its energy storage density is not high enough to satisfy the requirement. Therefore, seeking a method to improve the dielectric constant...

article

Multivariate orthogonal polynomial-based positioning error modeling and active compensation of dual-driven feed system

Meng Duan, Hong Lu, Xinbao Zhang, Zhangjie Li, more

The International Journal of Advanced Manufacturing Technology > 2019 > 104 > 5-8 > 2593-2605

The nonsynchronous error of the dual-driven feed system seriously affects the positioning and machining accuracy of CNC machine tools. Improving the positioning error is an extremely important task as it determines the geometric accuracy of the manufactured parts. In this paper, a Multivariate Orthogonal Polynomial Regression model has been developed to predict the positioning error in terms of motion...

article

Local failure probability of the anti-dip slope susceptible to flexural toppling

Ding-Jian Wang, Huiming Tang, Yongquan Zhang, Peiwu Shen

Stochastic Environmental Research and Risk Assessment > 2019 > 33 > 4-6 > 1187-1202

Anti-dip slope that fails in the form of flexural toppling is commonly encountered in rock engineering. This paper presents an approach to calculate the local failure probability of the anti-dip slope susceptible to flexural toppling. The realization of this approach consists of four major steps: (1) establishing geo-mechanical model of the slope and generating physical parameters randomly using Monte...

article

A standard PHD filter for joint tracking and classification of maneuvering extended targets using random matrix

Qi Hu, Hongbing Ji, Yongquan Zhang

Signal Processing > 2018 > 144 > C > 352-363

This paper presents a novel filter for jointly tracking and classification (JTC) of maneuvering extended targets using the standard probability hypothesis density (PHD) framework. For an extended target, the extended state that describes the target size, shape and orientation is also estimated, in addition to the kinematic state. Assuming that the target size information is known in advance, the presented...

article

A fast ellipse extended target PHD filter using box-particle implementation

Yongquan Zhang, Hongbing Ji, Qi Hu

Mechanical Systems and Signal Processing > 2018 > 99 > C > 57-72

This paper presents a box-particle implementation of the ellipse extended target probability hypothesis density (ET-PHD) filter, called the ellipse extended target box particle PHD (EET-BP-PHD) filter, where the extended targets are described as a Poisson model developed by Gilholm et al. and the term “box” is here equivalent to the term “interval” used in interval analysis. The proposed EET-BP-PHD...

article

Tracking of maneuvering non-ellipsoidal extended target with varying number of sub-objects

Qi Hu, Hongbing Ji, Yongquan Zhang

Mechanical Systems and Signal Processing > 2018 > 99 > C > 262-284

A target that generates multiple measurements at each time step is called the extended target and an ellipse can be used to approximate its extension. When the spatial distributions of measurements can reflect its true shape, in this situation the extended target is called a non-ellipsoidal extended target and its complicated extended state cannot be accurately approximated by single ellipse. In view...

article

Monitoring of Compression and Bending Process of Reactive Powder Concrete Using MWCNTs/PDMS Composite Sensors

Yongquan Zhang, Yong Ge, Yuanbo Du, Lili Yang

IEEE Sensors Journal > 2017 > 17 > 19 > 6153 - 6159

In the structural healthy monitoring of bridges, pavements of concrete or asphalt, flexible conductive sensors exhibit so many advantages, such as low cost, high durability, and large deformation monitoring. Herein, we report a low cost flexible composite sensor of multi-walled carbon nanotubes/Polydimethylsilosane (MWCNTs/PDMS) nanocomposites via solution casting method. Results show that MWCNTs/PDMS...

article

Determination of the embedded length of stabilizing piles in colluvial landslides with upper hard and lower weak bedrock based on the deformation control principle

Changdong Li, Junfeng Yan, Junjie Wu, Guoping Lei, more

Bulletin of Engineering Geology and the Environment > 2019 > 78 > 2 > 1189-1208

Several colluvial landslides have developed in the Jurassic strata region of Zigui County, a major landslide-prone region in the Three Gorges Reservoir Region of China. The bedrock in which stabilizing piles are placed in the landslide-prone Zigui region can be generally characterized as upper sandstone and lower silty mudstone. A site investigation of the Majiagou No. 1 landslide indicated that the...

chapter

An improved extended state estimation approach for maneuvering target tracking using random matrix

Qi Hu, Hongbing Ji, Yongquan Zhang

2017 20th International Conference on Information Fusion (Fusion) > 1 - 7

2017 20th International Conference on Information Fusion (Fusion)

The Gaussian inverse Wishart (GIW) filter is a promising filter for extended target tracking and draws tremendous attention in recent years. The Gaussian and the inverse Wishart distributions are used to describe the target's kinematical and extended states, respectively. However, the filter for estimating the extended state contains predicting position error and causes large error of the extended...

chapter

Gaussian mixture particle flow probability hypothesis density filter

Mingjie Wang, Hongbing Ji, Xiaolong Hu, Yongquan Zhang

2017 20th International Conference on Information Fusion (Fusion) > 1 - 8

2017 20th International Conference on Information Fusion (Fusion)

The probability hypothesis density (PHD) filter is a promising filter for multi-target tracking which propagates the posterior intensity of the multi-target state. In this paper, a Gaussian mixture particle flow PHD (GMPF-PHD) filter is proposed which uses a bank of particles to represent the Gaussian components in the Gaussian mixture PHD (GM-PHD) filter. Then a particle flow is implemented to migrate...

article

A preliminary study on the location of the stabilizing piles for colluvial landslides with interbedding hard and soft bedrocks

Changdong Li, Xiaoyi Wang, Huiming Tang, Guoping Lei, more

Engineering Geology > 2017 > 224 > C > 15-28

The paper presents a study on the location determination of stabilizing piles in colluvial landslides with the interbedding of hard and soft bedrocks. A double-arc model is proposed to describe the shape of sliding surface of colluvial landslides, and the corresponding slope surface can be divided into three types, namely the concave type, straight line type, and convex type, respectively. The driving...

chapter

Exploiting social influence for context-aware event recommendation in event-based social networks

Zhibo Wang, Yongquan Zhang, Yijie Li, Qian Wang, more

IEEE INFOCOM 2017 - IEEE Conference on Computer Communications > 1 - 9

IEEE INFOCOM 2017 - IEEE Conference on Computer Communications

Event-based Social Networks (EBSNs) which bridge the gap between online and offline interactions among users have received increasing popularity. The unique cold-start nature makes event recommendation more challenging than traditional recommendation problems, since even for two events with the same content, they may not happen at the same time, the same location, or be organized by the same host...

article

Effects of the particle-size distribution on the micro and macro behavior of soils: fractal dimension as an indicator of the spatial variability of a slip zone in a landslide

Sha Lu, Huiming Tang, Yongquan Zhang, Wenping Gong, more

Bulletin of Engineering Geology and the Environment > 2018 > 77 > 2 > 665-677

A field investigation of the Huangtupo landslide in the Three Gorges Reservoir area, China, indicated that the particle-size distribution—characterized by an index termed the fractal dimension—varied along the main sliding direction: the fractal dimension tended to increase in this direction. A preliminary study of the spatial variability of the slip zone based upon the fractal dimension was performed...

article

A box-particle implementation of standard PHD filter for extended target tracking

Yongquan Zhang, Hongbing Ji, Qi Hu

Information Fusion > 2017 > 34 > C > 55-69

This paper presents a box-particle implementation of the standard probability hypothesis density (PHD) filter for extended target tracking, called the extended target box-particle PHD (ET-Box-PHD) filter. The proposed filter can dynamically track multiple extended targets and estimate the unknown number of extended targets, in the presence of clutter measurements, false alarms and missed detections,...

article

Smale’s mean value conjecture for finite Blaschke products

Tuen-Wai Ng, Yongquan Zhang

The Journal of Analysis > 2016 > 24 > 2 > 331-345

Motivated by a dictionary between polynomials and finite Blaschke products, we study both Smale’s mean value conjecture and its dual conjecture for finite Blaschke products in this paper. Our result on the dual conjecture for finite Blaschke products allows us to improve a bound obtained by Dubinin and Sugawa for the dual mean value conjecture for polynomials.

article

Spiral tool path generation based on symbolic computation for machining of non-axisymmetric curved surface

Yongquan Zhang, Hong Lu, Xinbao Zhang, Wei Fan, more

The International Journal of Advanced Manufacturing Technology > 2017 > 91 > 9-12 > 3911-3924

Bent mandrel, which consists of non-axisymmetric curved surface (NACS), has been widely used as precise mold in automobile industry, shipping industry, and aviation industry. To improve the versatility and efficiency of turning method of the NACS with fixed rotational center, a machining method of non-axisymmetric curved surface using symbolic computation is proposed in this paper. A spiral tool path...

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INFONA - science communication portal

Search results for: Yongquan Zhang

Improvements in the Magnesium Ion Transport Properties of Graphene/CNT‐Wrapped TiO₂‐B Nanoflowers by Nickel Doping

Age‐related alterations in the nutritional quality of Arctic grayling (Thymallus arcticus)

Thermal and Electrical Properties of Epoxy Composites Filled with 3D h‐BN/TOCNF Fillers

Single axonal morphology reveals high heterogeneity in spinocerebellar axons originating from the lumbar spinal cord in the mouse

Designing of surface modification and sandwich structure: effective routs to improve energy storage property in polyimide-based composite films

Multivariate orthogonal polynomial-based positioning error modeling and active compensation of dual-driven feed system

Local failure probability of the anti-dip slope susceptible to flexural toppling

A standard PHD filter for joint tracking and classification of maneuvering extended targets using random matrix

A fast ellipse extended target PHD filter using box-particle implementation

Tracking of maneuvering non-ellipsoidal extended target with varying number of sub-objects

Monitoring of Compression and Bending Process of Reactive Powder Concrete Using MWCNTs/PDMS Composite Sensors

Determination of the embedded length of stabilizing piles in colluvial landslides with upper hard and lower weak bedrock based on the deformation control principle

An improved extended state estimation approach for maneuvering target tracking using random matrix

Gaussian mixture particle flow probability hypothesis density filter

A preliminary study on the location of the stabilizing piles for colluvial landslides with interbedding hard and soft bedrocks

Exploiting social influence for context-aware event recommendation in event-based social networks

Effects of the particle-size distribution on the micro and macro behavior of soils: fractal dimension as an indicator of the spatial variability of a slip zone in a landslide

A box-particle implementation of standard PHD filter for extended target tracking

Smale’s mean value conjecture for finite Blaschke products

Spiral tool path generation based on symbolic computation for machining of non-axisymmetric curved surface

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