Radiative imaging of pulverised coal combustion in the blast furnace raceway plays an increasingly important role working state diagnosis and monitoring real time. This paper presents a new method for calculating radiation three‐dimensional (3D) flames based on Monte Carlo charge coupled device (CCD) imaging. The relationship between two‐dimensional radiative image 3D radiant energy was studied by numerical simulation process this study. images obtained from blow pipe peephole tuyere not...

Based on the laser triangulation and machine vision technology, a three-dimensional quantitative inspection method for continuous cast slab surface defects was established, which adopted one two array charge coupled device cameras an optimal stripe imaging algorithm. In addition, scanning system establishing is described in detail this paper. A edge shape extraction proposed that utilises improved model accordance with camera frame frequency. The detection accuracy control algorithm...

In this paper, a scanning laser system based on an array couple charged detector (CCD) has been developed to detect and measure quantitatively the morphology depth of defects continuously cast billet (CC billet) surface at high temperatures. The technique, linear light scattering method, employs low power He–Ne conventional CCD probe enables narrow line beam be projected test across width direction CC surface. relative between probe, one-dimensional image acquired by sensor given shutter...

To provide a flexible calibration method and make an accurate machine vision (MV) based flatness measurement strategy reality in routine production line, area scan charge coupled device (CCD) laser stripe scanning approach is presented. The applicability of the proposed not tied to strip exclusively. First, we devise automatic imaging quality evaluation through analysing characteristics image grey gradient stripe, which prerequisite for precisely extracting modulated information hot or...

Various methods of detecting surface defects are being used in automated industrial manufacturing environments. This work presents the design and development a laser charged couple device (CCD) displacement scanning system. The defect detection method using CCD sensor is derived from an idea which such as cracks, inclusions holes three‐dimensional morphology characteristics compared to normal especially continuous casting slabs. Some novel research have been applied develop system used:...

Storage tanks after earthquake disaster may create the serious consequence, so their anti-seismic problems have drawn greater attention, and seismic response become focus of research. Considering liquid-solid coupling interaction between foundation storage tanks，three different volumes that liquid height were simulated under using software ADINA. The sloshing wave height, peak acceleration tank wall hydrodynamic pressure analyzed. results show shows a rising trend basically with increase...

With the development of hot charging and direct rolling technology in continuous slab casting, there are increasing demands for surface quality continuously cast evoked by modern metal material fabrication. In order to reduce noise, which is caused scale, water film oscillation marks, during on-line detection defects, a sinusoidal phase grating projection method presented detect depth profile cracks casting. This technology, based on deformed projected pattern, carries three-dimensional...

In order to better extract image feature and recognition, a novel extraction algorithm of the binary processing using Otsu combined with normalized moment inertia (NMI) is put forward. Firstly, processed into target area effectively segmented utilizing based on criteria maximal variance between-class , secondly, NMI extracted, finally, used in recognition. Experimental results show that have ability anti-geometric distortions (translation, rotation scaling, TRS), anti-brightness distortions,...

Summary This paper focuses on the research of a new method to enhance oil recovery in fault-block reservoirs at high water cut stage. Through three-dimensional flooding experimental analysis and Nuclear Magnetic Resonance (NMR) analysis, distribution remaining stage fault block reservoir is clarified from macro micro aspect. Although development has stepped into ultra-high stage, there still great potential for with two kinds oil. One located top tectonic structures which hardly swept by...

In hot slab continuous casting (CC) process, the Machine Vision (MV) inspection method for surface defects has been becoming a research focus with development of charge-coupled device (CCD) camera imaging technologies. To acquire informative and reliable image is prerequisite that means maximum detection rate minimum false recognition in next processing stage. this paper, based on CCD principle definition evaluation algorithm, radiation feature at high temperature optical properties had...

Abstract After the oil field enters stage of “double ultra-high” development, development potential turns to reservoir with worse and it is more difficult identify remaining oil. In order meet requirements tapping under new situation achieve accurate tapping, conventional fracturing technology has been continuously developed improved by strengthening analysis oil, optimizing scheme design other methods, effectively making up for decline production old wells. At same time, on basis...

Graphene is a two‐dimensional material with excellent performance and unique structure. Since its successful manufacturing in 2004, it has quickly become research hotspot the fields of materials, chemistry, physics, engineering. This article focuses on study exfoliated single‐layer graphene based dispersed carbon nanotubes understands related theories basis literature data. The mathematical model simulation calculation method are analyzed, then, effect peeling tested, mainly to experimental...

Defect of continue casting slab is closely related with technology and working conditions, one productive condition usually leads to the same type defect. So it has a great practical significance evaluate operative process by effective recognition defect types. In this paper, damped oscillating signal acquired differential method. The continues preliminary qualitative detected via three eigenvalue, wave peak value(called WPV below), lagging time peak(called LTP below) value difference...

This paper attempts to combine the image features of shape, movement and color, taking oval as shape model target immediately catch edge target, using feature light stream technology obtain information target. The color can be obtained histogram mean shift algorithm. In tracking SDA spatial selection algorithm is introduced improve background differentiation. Then, above would integrated through particle filtering technology. self-adapting integration used, each weight decided according its...

The current paper verifies the event-triggered finite-time tracking control of a fully actuated unmanned surface vessel under unmodeled dynamics and external disturbances. Radial basis function neural networks (RBFNNs), nonlinear disturbance observers (NDO), mechanism (ETM) are utilized to design new type finite time controller (FFTC). proposed utilizes dynamic (DSC) approach resolve "differential explosion" issue virtual laws. Prescribed performance functions (PPFs) (FFC) technique specify...

Micellization of surfactant solutions is a self-assembly process governed by complex interplay solvent-mediated interactions. However, quantitative modeling micelle formation and its effect on oil-water interface are not yet completely understood. In this work, dissipative particle dynamics simulations were used to investigate the behavior anionic surfactants alcohol alkoxy sulfate (AAS) structural influence interfacial properties at mesoscopic scale. Our results indicate that with increase...