52 Result(s)
within
**ang-Jun Lu
Engineering
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Article
Image block feature vectors based on a singular-value information metric and color-texture description
In this work, image feature vectors are formed for blocks containing sufficient information, which are selected using a singular-value criterion. When the ratio between the first two SVs are below a given thre...
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Article
An integrated classification method for thematic mapper imagery of plain and highland terrains
The classification of thematic mapper imagery in areas with strong topographic variations has proven problematic in the past using a single classifier, due to the changing sun illumination geometry. This often...
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Article
Discussion on rheology in petroleum and nature gas teservoir stimulation
Petroleum and nature gas not only are important resources, but also are important strategic materials of our country. All methods the enhancing the producing degree of petroleum and natural gas reservoir, incr...
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Article
Fabrication and anodic polarization behavior of lead-based porous anodes in zinc electrowinning
A new type of lead-based porous anode in zinc electrowinning was prepared by negative pressure infiltration. The anodic polarization potential and corrosion rate were studied and compared with those of traditi...
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Chapter and Conference Paper
Wall Following of Mobile Robot Based on Fuzzy Genetic Algorithm of Linear Interpolating
Traditional fuzzy controller has some disadvantages, such as inferiorly adaptability due to the invariable membership function parameters and too many subjective factors and so on. So in this paper, we firstly...
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Article
Effect of do** Bi on oxygen evolution potential and corrosion behavior of Pb-based anode in zinc electrowinning
A new anodic material of ternary Pb-0.8%Ag-(0–5.0%)Bi alloy for zinc electrowinning was obtained by do** Bi. The anodic oxygen evolution potential, corrosion rate, surface products after polarization, and mi...
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Article
Modeling of the vehicle shimmy system with consideration of clearance of the steering linkage mechanism
The mechanism of vehicle shimmy has been paid much attention in the past decades. In which, the clearance of the steering linkage is usually neglected. Yet the prior research of the authors proved that the cle...
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Article
Wall-following of mobile robot based on fuzzy genetic algorithm to linear interpolating
Traditional fuzzy controller has some disadvantages, such as inferiorly adaptability due to the invariable membership function parameters and too many subjective factors. So in this paper, we firstly put forwa...
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Article
Centrifuge modeling of dynamic behavior of pile-reinforced slopes during earthquakes
A series of centrifuge model tests of sandy slopes were conducted to study the dynamic behavior of pile-reinforced slopes subjected to various motions. Time histories of accelerations, bending moments and pile...
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Article
Nonlinear dynamics of flexible rotor system supported on fixed-tilting pad combination journal bearing
Based on the Reynolds equation with Reynolds boundary conditions, the Castelli method was employed to solve the Reynolds equation for oil lubrication upon bearings. By doing so, a profile of nonlinear oil film...
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Article
Influences of stochastic perturbation of parameters on dynamic behavior of gear system
Gear systems are commonly used in vehicles, and the vibration of the gear system was paid more attention in recent years. In this paper, the dynamic behavior of gear system with stochastic perturbation of syst...
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Article
Changes in permafrost environments caused by construction and maintenance of Qinghai-Tibet Highway
The sideward permafrost along the Qinghai-Tibet Highway (QTH) contains massive ground-ice and is at a relatively high temperature. Under the influence of the steady increase of human activities, the permafrost...
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Article
Generalized projective lag synchronization between different hyperchaotic systems with uncertain parameters
Generalized projective lag synchronization (GPLS) is characterized by the output of the drive system proportionally lagging behind the output of the response system. In this paper, GPLS between different hyper...
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Chapter and Conference Paper
A Novel PSO k-Modes Algorithm for Clustering Categorical Data
The k-modes is a classical clustering algorithms for categorical data set. Its principle is simple, but it is easy to converge to a local optimum. PSO (Particle Swarm Optimization) algorithm is an effective to...
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Article
22Cr High-Mn-N Low-Ni Economical Duplex Stainless Steels
A new family of economical duplex stainless steels in which N or Mn was substituted for Ni with composition of 22Cr-8. OMn-xNi-1. OMo-0. 7Cu-0. 7W-0. 3N (x = 0. 5–2. 0) have been developed by examining the micro-...
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Article
Identification of sources of pollution and contamination in water distribution networks based on pattern recognition
An intrusion of contaminants into the water distribution network (WDN) can occur through storage tanks (via animals, dust-carrying bacteria, and infiltration) and pipes. A sensor network could yield useful obs...
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Article
Field observation and analysis of wave-current-sediment movement in Caofeidian Sea area in the Bohai Bay, China
In order to study the mechanism of flow-sediment movement, it is essential to obtain measured data of water hydrodynamic and sediment concentration process with high spatial and temporal resolution in the bott...
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Article
Hydrodynamic performance of distributed pump-jet propulsion system for underwater vehicle
A type of distributed pump-jet propulsion system (DPJP) is developed with two or four specially designed pump-jet pods located around the axisymmetric underwater vehicle body symmetrically. The flow field is n...
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Article
Analysis and design of resistance-wire heater in MOCVD reactor
Metal organic chemical vapor deposition (MOCVD) is a key equipment in the manufacturing of semiconductor optoelectronic devices and microwave devices in industry. Heating system is a vital part of MOCVD. Speci...
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Article
Stochastic fatigue life and reliability prediction based on residual strength
A randomized approach is developed to solve a deterministic equation. The method uses random deterministic approach to achieve the fatigue life based on residual strength and S-N curve. We propose a one-to-one tr...
