Search results for: Zhi-chao ZHANG

Items from 1 to 20 out of 49 results

article

Fabrication of an antifouling GO‐TiO₂/PES ultrafiltration membrane

Wei Wang, Ya Ping Shi, Peng Zhang, Zhi Chao Zhang, more

Journal of Applied Polymer Science > 138 > 39 > n/a - n/a

PES ultrafiltration membrane is widely used in various fields due to its high‐filtration efficiency. However, due to its hydrophobicity, PES ultrafiltration membrane has poor antifouling performance, this reduced service life and increased industrial cost. Blending is a common method in ultrafiltration membrane hydrophilic modification. Adding a small amount of inorganic nanoparticles into the polymer...

article

Using entanglement more efficiently in distinguishing orthogonal product states by LOCC

Lv-Jun Li, Fei Gao, Zhi-Chao Zhang, Qiao-Yan Wen

Quantum Information Processing > 2019 > 18 > 11 > 1-16

In this paper, we mainly study the problem of locally distinguishing orthogonal product states using entanglement as a resource. We present methods to improve the previous results, presented by other authors, based on an ancillary two-qubit maximally entangled state instead of a high-dimensional entanglement ancillary resource. Concretely, we present a method to locally distinguish a set of $$2n-1$$...

article

Prediction of Forming Limit of Dual-Phase 500 Steel Sheets Using the GTN Ductile Damage Model in an Innovative Hydraulic Bulging Test

Xiao-Lei Cui, W. W. Zhang, Zhi-Chao Zhang, Yi-Zhe Chen, more

JOM > 2018 > 70 > 8 > 1542-1547

Advanced high-strength steel has great potential for application in automotive and high-speed rail industries owing to its excellent mechanical properties. To predict the forming limit of dual-phase 500 steel sheets (DP500), Banabic’s innovative hydraulic bulging test was conducted on them, and the Gurson–Tvergaard–Needleman (GTN) ductile damage model was used to determine their failure under different...

article

Study on the performance of the micropile-mechanically stabilized earth wall

Zhi-chao Zhang, Ronald Y. S. Pak, Yu-min Chen, Han-long Liu

Journal of Mountain Science > 2018 > 15 > 4 > 825-844

The Micropile-Mechanically Stabilized Earth (MSE) wall, specially designed for mountain roads, is proposed to improve the MSE wall local stability, global stability and impact resistance of roadside barriers. Model tests and the corresponding numerical modeling were conducted to validate the serviceability of the Micropile-MSE wall and the reliability of the numerical method. Then, a parametric study...

article

Three Phenoxo‐Bridged Dinuclear Lanthanide Complexes: Syntheses, Crystal Structures, and Magnetic Properties

Zhi‐Chao Zhang, Rui‐Peng Dai, Hui‐Ming Dong, Xiao‐Jun Zhao, more

Zeitschrift für anorganische und allgemeine Chemie > 644 > 5 > 293 - 300

Three dinuclear lanthanide complexes [Ln₂(H₂L)₂(NO₃)₄] [Ln = Dy (1), Tb (2), and Gd (3)] [H₃L = 2‐hydroxyimino‐N′‐[(2‐hydroxy‐3‐methoxyphenyl)methylidene]‐propanohydrazone] were solvothermally synthesized by varying differently anisotropic rare earth ions. Single‐crystal structural analyses demonstrate that all the three complexes are crystallographically isostructural with two centrosymmetric Ln^III...

article

A hybrid numerical scheme for aeroheating computation of hypersonic reentry vehicles

Zhen-Xun Gao, Hai-Chao Xue, Zhi-Chao Zhang, Hong-Peng Liu, more

International Journal of Heat and Mass Transfer > 2018 > 116 > C > 432-444

Hypersonic aeroheating simulations were conducted for three-dimensional (3D) reentry capsule for the Mars Science Laboratory (MSL) using the AUSM and the Roe schemes. The study confirms that AUSM family of schemes generate unphysical oscillations in the wall heat flux distributions due to the unstable simulation of the shock wave. And the wall heat flux is underpredicted by the Roe scheme due to excess...

article

Adaptive optics compensation of orbital angular momentum beams with a modified Gerchberg–Saxton-based phase retrieval algorithm

Huan Chang, Xiao-li Yin, Xiao-zhou Cui, Zhi-chao Zhang, more

Optics Communications > 2017 > 405 > C > 271-275

Practical orbital angular momentum (OAM)-based free-space optical (FSO) communications commonly experience serious performance degradation and crosstalk due to atmospheric turbulence. In this paper, we propose a wave-front sensorless adaptive optics (WSAO) system with a modified Gerchberg–Saxton (GS)-based phase retrieval algorithm to correct distorted OAM beams. We use the spatial phase perturbation...

chapter

The SOC estimation and simulation of power battery based on self-recurrent wavelet neural network

Ai-Yun Gao, Feng-Li Zhang, Zhu-Mu Fu, Zhi-Chao Zhang, more

2017 Chinese Automation Congress (CAC) > 4247 - 4252

2017 Chinese Automation Congress (CAC)

Improving the accuracy of power battery state of charge (SOC) estimation is an important basis for formulating and optimizing the control strategy of hybrid electric vehicle. Aiming at the problem of the traditional SOC large estimation error, a SOC estimation method based on self-recurrent wavelet neural network (SRWNN) is proposed. Firstly, the equivalent model of power battery and its SOC estimation...

article

Tighter uncertainty principles for linear canonical transform in terms of matrix decomposition

Zhi-Chao Zhang

Digital Signal Processing > 2017 > 69 > C > 70-85

Uncertainty principles of the linear canonical transform (LCT) are of importance in optics and signal processing. Thanks to the positive definite property of the spread matrix for arbitrary signals, this study discusses the lower bound of uncertainty product of complex signals in two LCT domains through using this matrix's rotation orthogonal decomposition mainly. We formulate two kinds of lower bounds,...

article

Multichannel sampling expansions in the linear canonical transform domain associated with explicit system functions and finite samples

Zhi-Chao Zhang, Tao Yu, Mao-Kang Luo, Ke Deng

IET Signal Processing > 2017 > 11 > 7 > 814 - 824

Focusing on two issues associated with the existing multichannel sampling expansions (MSEs) of the linear canonical transform (LCT), those are, the implicit expression of system functions possibly leads to the inconvenience of reconstructing signals in practical situations, and the reconstruction of the original signal from its finite samples, the authors first propose a novel MSE in the Fourier transform...

article

Numerical investigation on the impact resistance of road barriers of Micropile-MSE Wall for subgrade

Zhi-chao Zhang, Yu-min Chen, Han-long Liu

Computers and Geotechnics > 2017 > 82 > C > 249-265

The Micropile-MSE Wall, specially designed for mountain roadways, is used to simultaneously increase the MSE wall’s local stability, global stability and impact resistance of road barriers. Model tests were conducted first to validate the viability of the Micropile-MSE Wall. The impact resistance of the road barrier is then studied numerically. The test results indicate that the surcharge-induced...

article

A sampling theorem of chirp periodic and non-bandlimited signals from finite set of samples associated with the fractional Fourier transform

Zhi-Chao Zhang

Optik - International Journal for Light and Electron Optics > 2017 > 129 > C > 212-216

Recently, Shi et al. constructed a class of function spaces and proposed a sampling theorem without band-limiting constraint for the fractional Fourier transform (FRFT) in this kind of function spaces. The authors also investigated the truncation error of the sampling theorem. In this paper we consider a small class of signals in the function spaces, that is, the chirp periodic signals associated...

article

A thermo-mechanical coupled constitutive model for clay based on extended granular solid hydrodynamics

Zhi-Chao Zhang, Xiao-Hui Cheng

Computers and Geotechnics > 2016 > 80 > C > 373-382

The thermo-mechanical (T-M) coupling behavior of clay can be difficult to predict due to its complicated coupling mechanism, irreversibility and OCR dependency. To date, several constitutive models were proposed based on the phenomenological theory of elasticity and plasticity, which are able to simulate some of the T-M coupling behavior but lacks the fundamental description of coupling dissipation...

article

Efficient Low‐Temperature Solution‐Processed Lead‐Free Perovskite Infrared Light‐Emitting Diodes

Wei‐Li Hong, Yu‐Chi Huang, Che‐Yu Chang, Zhi‐Chao Zhang, more

Advanced Materials > 28 > 36 > 8029 - 8036

Lead‐free perovskite infrared light‐emitting diodes are achieved by using a halide perovskite CsSnI₃ as an emissive layer. The film shows compact micrometer‐sized grains with only a few pinholes and cracks at the grain boundaries. The device exhibits maximum radiance of 40 W sr⁻¹ m⁻² at a current density of 364.3 mA cm⁻² and maximum external quantum efficiency of 3.8% at 4.5 V.

article

An approximating interpolation formula for bandlimited signals in the linear canonical transform domain associated with finite nonuniformly spaced samples

Zhi-Chao Zhang

Optik - International Journal for Light and Electron Optics > 2016 > 127 > 17 > 6927-6932

In the past literature, with the reproducing property of the reproducing kernel, Zhao et al. proposed an interpolation formula for bandlimited signals in the linear canonical transform (LCT) domain associated with finite set of irregularly spaced samples. Although the authors have discussed the reconstruction error of the formula, they did not investigate the conditions that lead to the error tends...

article

Orexin-A facilitates emergence of the rat from isoflurane anesthesia via mediation of the basal forebrain

Li-Na Zhang, Cen Yang, Peng-Rong Ouyang, Zhi-Chao Zhang, more

Neuropeptides > 2016 > 58 > C > 7-14

Previous studies have demonstrated that orexinergic neurons involve in promoting emergence from anesthesia of propofol, an intravenous anesthetics, while whether both of orexin-A and orexin-B have promotive action on emergence via mediation of basal forebrain (BF) in isoflurane anesthesia has not been elucidated. In this study, we observed c-Fos expressions in orexinergic neurons following isoflurane...

article

New convolution structure for the linear canonical transform and its application in filter design

Zhi-Chao Zhang

Optik - International Journal for Light and Electron Optics > 2016 > 127 > 13 > 5259-5263

The convolution and product theorem for the Fourier transform (FT) plays an important role in signal processing theory and application. The linear canonical transform (LCT), which is a generalization of the FT and the fractional Fourier transform (FRFT), has found many applications in optics and non-stationary signal processing. Recently, some scholars have formulated a series of convolution and product...

article

New convolution and product theorem for the linear canonical transform and its applications

Zhi-Chao Zhang

Optik - International Journal for Light and Electron Optics > 2016 > 127 > 11 > 4894-4902

The convolution theorem for the linear canonical transform (LCT) is of importance in signal processing theory and application. Recently, some attempts at extending the convolution theorem in the Fourier transform (FT) domain to the LCT domain have derived many important results, which are very useful and effective in filter design and signal reconstruction, but none of them generalize very nicely...

article

Reverse deep drawability of 5A06 aluminum alloy plate at elevated temperatures

Zhi-chao ZHANG, Yong-chao XU, Shi-jian YUAN

Transactions of Nonferrous Metals Society of China > 2016 > 26 > 6 > 1538-1545

In order to avoid the occurrence of fracture at room temperature in reverse deep drawing of aluminum alloy plate, the warm reverse deep drawing method was proposed. The experiments were conducted at room temperature, 280 and 360 °C with a 4.5 mm thick 5A06 aluminum alloy plate. The effect of temperature, blank-holding force and gap on the fracture and wrinkle of the reverse deep drawing process was...

article

Novel Wigner distribution and ambiguity function associated with the linear canonical transform

Zhi-Chao Zhang

Optik - International Journal for Light and Electron Optics > 2016 > 127 > 12 > 4995-5012

The Wigner distribution (WD) and ambiguity function (AF) associated with the linear canonical transform (LCT) attract much attention in the literature. For this, many generalized time-frequency distributions are currently derived, for example the WD and AF in the LCT domain (WDL, AFL), the unified WD and AF in the LCT domain (UWA, WAL), and the WD and AF based on the generalized convolution in the...

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Keywords

LINEAR CANONICAL TRANSFORM (8)
AMBIGUITY FUNCTION (2)
CONVOLUTION AND PRODUCT THEOREM (2)
CRYSTAL STRUCTURE (2)
INTERPOLATION (2)
LANTHANIDES (2)
LOCAL DISTINGUISHABILITY (2)
LOCAL OPERATIONS AND CLASSICAL COMMUNICATION (2)
MAXIMALLY ENTANGLED STATES (2)
MICROPILE (2)
MODEL TEST (2)
NUMERICAL SIMULATION (2)
ONE-WAY (2)
SAMPLING THEOREM (2)
SIGNAL RECONSTRUCTION (2)
5A06 ALUMINUM ALLOY (1)
8-OXO-8H-ACCNAPHTHO[1,2-B)]PYRROLE-9-CARBOXYLIC ACID ESTERS (1)
ADAPTIVE OPTICS (AO) (1)
AEROHEATING (1)
ALUMINUM ALLOY (1)
ALZHEIMER'S DISEASE (1)
ANISOTROPY ENERGY BARRIER (1)
APPROXIMATION (1)
ASH DEPOSITION (1)
ASYMMETRIC CATALYSIS (1)
ASYMMETRISCHE KATALYSE (1)
ATMOSPHERIC TURBULENCE (AT) (1)
AUTOPHAGY (1)
BANDLIMITED SIGNAL (1)
BASAL FOREBRAIN (1)
BATTERIES (1)
BCL-2 (1)
BETA-AMYLOID PROTEIN (1)
BH3 MIMETIC (1)
BLENDS (1)
BLUNT BODY (1)
CARBENE (1)
CARBENES (1)
CARBON DISULFIDE (1)
CHANNEL DISTORTION (1)
CHIRAL PROTON SHUTTLE (1)
CHIRAL Α‐AMINOKETONES (1)
CHIRALE PROTONENÜBERTRÄGER (1)
CHIRALE Α‐AMINOKETONE (1)
CHIRP PERIODIC (1)
CHIRP PERIODIC SIGNALS (1)
CLAY (1)
COMPUTATIONAL COMPLEXITY (1)
CONSTITUTIVE MODEL (1)
CONVENTIONAL SYNTHESIS (1)
CORRELATION (1)
COUPLING EFFECT (1)
CYTOTOXICITY (1)
DEEP DRAWING (1)
DEW POINT CORROSION (1)
DIAZO COMPOUNDS (1)
DIAZOVERBINDUNGEN (1)
DIPHOSPHOPENTAMOLYBDATE (1)
ELECTROLUMINESCENCE (1)
EMERGENCE TIME (1)
ER STRESS (1)
ERLANG MOUNTAINOUS CHICKEN (1)
ESTIMATION ERROR (1)
EXPLICIT SYSTEM FUNCTIONS (1)
FILTER DESIGN (1)
FILTERING THEORY (1)
FINITE SAMPLES (1)
FORMING DEFECT (1)
FOURIER TRANSFORM (1)
FOURIER TRANSFORMS (1)
FRACTIONAL FOURIER TRANSFORM (1)
FREE FATTY ACID (1)
FREE SPACE OPTICAL (FSO) (1)
GABOR׳S SIGNAL EXPANSION (1)
GENERALIZED AMBIGUITY FUNCTION (1)
GENERALIZED TRANSLATION (1)
GENERALIZED WIGNER–VILLE DISTRIBUTION (1)
GEOCHEMISTRY (1)
GERCHBERG–SAXTON (GS) ALGORITHM (1)
HERPES SIMPLEX KERATITIS (1)
HYDROPHILIC POLYMERS (1)
HYPERSONIC (1)
IMPACT RESISTANCE (1)
INFRARED (1)
INTEGRAL TRANSFORM (1)
INTER-FRAME ERROR PROPAGATION (1)
INTERCALATION (1)
INTERFERON GAMMA (1)
INTERNALIZATION (1)
ISOFLURANE ANESTHESIA (1)
KEGGIN CLUSTER (1)
LANTHANIDE COMPLEXES (1)
LCT-BAND (1)
LEAD‐FREE (1)
LIGHT‐EMITTING DIODES (1)
LIPID ACCUMULATION (1)
LIQUID DIFFUSION METHOD (1)
LOCAL DISCRIMINATION (1)
LOCAL NUMERICAL RANGE (1)
LOW-DENSITY LIPOPROTEIN RECEPTOR-RELATED PROTEIN 1 (1)
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Quantum Information Processing (5)
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Computers and Geotechnics (2)
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Angewandte Chemie (1)
Angewandte Chemie International Edition (1)
Applied Organometallic Chemistry (1)
Applied Thermal Engineering (1)
Cancer Letters (1)
Chemical Research in Chinese Universities (1)
Chinese Journal of Analytical Chemistry (1)
Chinese Journal of Traumatology (1)
Digital Signal Processing (1)
Gene (1)
Hepatology Research (1)
IET Signal Processing (1)
Inorganic Chemistry Communications (1)
Inorganica Chimica Acta (1)
International Journal of Biochemistry and Cell Biology (1)
International Journal of Heat and Mass Transfer (1)
JOM (1)
Journal of Applied Polymer Science (1)
Journal of Asian Earth Sciences (1)
Journal of Chromatography A (1)
Journal of Molecular Neuroscience (1)
Journal of Mountain Science (1)
Journal of Solid State Chemistry (1)
Journal of Zhejiang University-SCIENCE A (1)
Journal of the American Chemical Society (1)
Neuropeptides (1)
Optics Communications (1)
Solid State Sciences (1)
The International Journal of Advanced Manufacturing Technology (1)
Transactions of Nonferrous Metals Society of China (1)
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INFONA - science communication portal

Search results for: Zhi-chao ZHANG

Fabrication of an antifouling GO‐TiO₂/PES ultrafiltration membrane

Using entanglement more efficiently in distinguishing orthogonal product states by LOCC

Prediction of Forming Limit of Dual-Phase 500 Steel Sheets Using the GTN Ductile Damage Model in an Innovative Hydraulic Bulging Test

Study on the performance of the micropile-mechanically stabilized earth wall

Three Phenoxo‐Bridged Dinuclear Lanthanide Complexes: Syntheses, Crystal Structures, and Magnetic Properties

A hybrid numerical scheme for aeroheating computation of hypersonic reentry vehicles

Adaptive optics compensation of orbital angular momentum beams with a modified Gerchberg–Saxton-based phase retrieval algorithm

The SOC estimation and simulation of power battery based on self-recurrent wavelet neural network

Tighter uncertainty principles for linear canonical transform in terms of matrix decomposition

Multichannel sampling expansions in the linear canonical transform domain associated with explicit system functions and finite samples

Numerical investigation on the impact resistance of road barriers of Micropile-MSE Wall for subgrade

A sampling theorem of chirp periodic and non-bandlimited signals from finite set of samples associated with the fractional Fourier transform

A thermo-mechanical coupled constitutive model for clay based on extended granular solid hydrodynamics

Efficient Low‐Temperature Solution‐Processed Lead‐Free Perovskite Infrared Light‐Emitting Diodes

An approximating interpolation formula for bandlimited signals in the linear canonical transform domain associated with finite nonuniformly spaced samples

Orexin-A facilitates emergence of the rat from isoflurane anesthesia via mediation of the basal forebrain

New convolution structure for the linear canonical transform and its application in filter design

New convolution and product theorem for the linear canonical transform and its applications

Reverse deep drawability of 5A06 aluminum alloy plate at elevated temperatures

Novel Wigner distribution and ambiguity function associated with the linear canonical transform

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