124 Result(s)
within
**an-wen Zhang
Engineering
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Chapter
Adaptive Control of Linear Systems with Unknown Time Delay
This chapter discusses adaptive control of continuous time systems with unknown time delay. In the controller design, the delay is taken into consideration by using rational approximation. For the implementati...
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Article
A novel absorbing boundary condition for the frequency-dependent finite-difference time-domain method
A new absorbing boundary condition (ABC) for frequency-dependent finite-difference time-domain algorithm for the arbitrary dispersive media is presented. The concepts of the digital systems are introduced to t...
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Article
The electrochemical performance of Ml0.7 Mm0.3 Ni3.7 Co0.7 Mn0.4 Al0.2 nanocrystalline hydrogen storage alloy as metal hydride electrode
Ml0.7Mm0.3Ni3.7Co0.7Mn0.4Al0.2 nanocrystalline hydrogen storage materials are prepared by melt-spinning (MS). X-ray diffraction is used for the measurement of the nanocrystalline size. Compared to the electrode o...
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Article
Influence of graphite particle size and its shape on performance of carbon composite bipolar plate
Bipolar plates for proton exchange membrane fuel cell (PEMFC) where polymer is used as binder and graphite is used as electric filler were prepared by means of compression molding technology. Study on the effe...
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Article
Surface Ferrite Grain Refinement and Mechanical Properties of Low Carbon Steel Plates
Considering the specialities of the steel plate production, the TMCP study has been carried out with Gleeble 2000 tester to explore the possibility of fine grained ferrite in the low carbon steel plates with t...
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Article
Activation Energy for Superplastic Flow Above Critical Temperature of Die Steels
Some commercial cold working die steels GCr15 and CrWMn with ultra-fine grain size were chosen as tested materials to research the activation energy for superplastic flow at different temperatures and strain r...
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Article
Effects of Aquatic Vegetation on Flow in the Nansi Lake and Its Flow Velocity Modeling
Aquatic vegetation has significant effects on flow in waters. In this article, four types of water areas were analyzed according to the field survey on water depth and vegetation in the Nansi Lake for the East...
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Article
Intrinsic Features of Turbulent Flow in Strongly 3-D Skew Blade Passage of a Francis Turbine
The turbulent flow, with the Reynolds number of 5.9 × 105, in the strongly 3-D skew blade passage of a true Francis hydro turbine was simulated by the Large Eddy Simulation (LES) approach to investigate the spati...
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Article
Large-Eddy Simulation of Turbulent Flow Considering Inflow Wakes in a Francis Turbine Blade Passage
Turbulent flow in a 3-D blade passage of a Francis hydro turbine was simulated with the Large Eddy Simulation (LES) to investigate the spatial and temporal distributions of the turbulence when strongly distort...
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Article
Study on Turbulence Features Near an Oscillating Curved Wall
In pursuit of possibly true turbulent characters and for exploring a change in turbulence structures near an oscillating flexible wall-curved surface, a sinusoidal oscillation mode was forced to a curved wall,...
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Article
A reordered first fit algorithm based novel storage scheme for parallel turbo decoder
In this paper we discuss a novel storage scheme for simultaneous memory access in parallel turbo decoder. The new scheme employs vertex coloring in graph theory. Compared to a similar method that also uses unn...
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Article
Numerical Simulation and Analysis on the Hemodynamics of an Elastic Aneurysm
Intracranial aneurysms are pathological dilatations which endanger people’s health. Hemodynamics is thought to be an important factor in the pathogenesis and treatment of aneurysms. To date, the bulk of invest...
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Article
A co-rotational updated Lagrangian formulation for a 2D beam element with consideration of the deformed curvature
A tensor-based updated Lagrangian (UL) formulation for the geometrically nonlinear analysis of 2D beam-column structures is developed by using curvilinear coordinates, which has considered the effects of the d...
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Article
Pulse electrical arc stimulator based on single-electrode for active exercise in tail-suspension rat
To make rat do active exercise to counteract bone loss in the rat tail-suspension model, a pulse electrical stimulator based on single-electrode with a low-current and a high-voltage was designed. The stimulat...
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Article
Manganese removal from the Qiantang River source water by pre-oxidation: A case study
We evaluated several different pre-oxidation treatments, namely the introduction of either potassium permanganate (KMnO4), chlorine (Cl2), or both to remove manganese (Mn) from the Qiantang River source water. Ou...
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Article
Characterization of tricalcium phosphate solubilization by Stenotrophomonas maltophilia YC isolated from phosphate mines
The phosphate solubilizing characteristics of a strain YC, which was isolated from phosphate mines (Hubei, China), were studied in National Botanical Research Institute’s phosphate (NBRIP) growth medium contai...
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Article
Bioleaching of soluble phosphorus from rock phosphate containing pyrite with DES-induced Acidithiobacillus ferrooxidans
The effects of Acidithiobacillus ferrooxidans (At. f) mutated with diethyl sulfate (DES) as a mutagen on the bioleaching of soluble phosphorus (P) from rock phosphate (RP) were investigated. The results show that...
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Article
Mathematical Model for the Flow with Submerged and Emerged Rigid Vegetation
The article summarizes previous studies on the flow in open channels with rigid vegetation, and constructs a mathematical model for submerged and emerged rigid vegetation. The model involves the forces balance...
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Article
Particle filter for joint frequency offset and channel estimation in MIMO-OFDM systems
A particle filter is proposed to perform joint estimation of the carrier frequency offset (CFO) and the channel in multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) wireless...
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Article
Tests and Applications of a Boussinesq Model with Ambient Current
A new type Boussinesq model is proposed and applied for wave propagation in a wave flume of uniform depth and over a submerged bar with current present or absent, respectively. Firstly, for the propagation of ...
