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WATER LEAKAGE DIAGNOSIS IN METRO TUNNELS BY INTERGRATION OF LASER POINT CLOUD AND INFRARED THERMAL IMAGING
Tunnel Infrared Thermal Imaging Laser Scanning Intensity Data Water Leakage Diagnosis
2018/5/16
Diagnosis of water leakage in metro tunnels is of great significance to the metro tunnel construction and the safety of metro operation. A method that integrates laser scanning and infrared thermal im...
THERMAL TEXTURE GENERATION AND 3D MODEL RECONSTRUCTION USING SFM AND GAN
infrared images structure from motion generative adversarial networks object recognition deep convolutional neural networks
2018/6/4
Realistic 3D models with textures representing thermal emission of the object are widely used in such fields as dynamic scene analysis, autonomous driving, and video surveillance. Structure from Motio...
Consideration of enhancement of thermal rectification using metamaterial models
Heat transfer Near-field Metamaterials Radiative Thermal rectification
2015/8/6
We present a systematic study to highlight some of the fundamental physics that governs metamaterial based electromagnetic thermal rectifiers. In such thermal rectifiers, the rectification arises from...
UA Researchers are Creating Better Thermal-Imaging Lens From Waste Sulfur
UA Researchers Creating Better Thermal-Imaging Lens Waste Sulfur
2014/5/13
A UA-led research team has developed a new use for the sulfur left over from oil and natural gas refining: made into a plastic polymer, the material can be made into cheap and lightweight lenses for i...
Temporal coupled mode theory for thermal emission from a single thermal emitter supporting either a single mode or an orthogonal set of modes
Temporal coupled thermal emission single thermal emitter supporting either
2015/8/7
We propose a temporal coupled mode theory for thermal emission from a single emitter supporting either a single mode or an orthogonal set of modes. This temporal coupled mode theory provides analytic ...
Enhancing far-field thermal emission with thermal extraction
Enhancing thermal emission thermal extraction
2015/8/7
The control of thermal radiation is of great current importance for applications such as energy conversions and radiative cooling. Here we show theoretically that the thermal emission of a finit...
Three-dimensional self-assembled photonic crystals with high temperature stability for thermal emission modification
Three-dimensional self-assembled photonic crystals temperature stability thermal emission modifi cation
2015/8/7
Selective thermal emission in a useful range of energies from a material operating at high temperatures is required for effective solar thermophotovoltaic energy conversion.Three-dimensional metallic ...
Ultrahigh-contrast and large-bandwidth thermal rectification in near-field electromagnetic thermal transfer between nanoparticles
Ultrahigh-contrast large-bandwidth thermal electromagnetic thermal transfer between nanoparticles
2015/8/7
We exploit the unique properties of optical waves in nanophotonic structures to enhance the capabilities for active control of electromagnetic thermal transfer at nanoscale. We show that the near-@...
Negative differential thermal conductance through vacuum
Negative differential thermal conductance through vacuum
2015/8/7
We propose a scheme for achieving negative differential thermal conductance in near-field electromagnetic thermal transfer. As an example, we show that the scheme can be implemented with two sla...
Effects of ApertureWall on the Readout Signal of Erasable Thermal Phase Change Super Resolution (EPSR) Disks
erasable thermal phase change super resolution disk (EPSR) optical super resolution mask layer recording layer below-diffraction-limited aperture aperture wall pulse readout
2011/11/30
A 揵elow-diffraction-limited?aperture within the readout spot for high-density recording can be achieved on erasable thermal phase change super resolution (EPSR) disks. Compared to the large aperture w...
Reduction of hybrid silicon laser thermal impedance using Poly Si thermal shunts
Optoelectronics Lasers and laser optics Optical devices
2015/5/26
We present a hybrid silicon evanescent laser that uses poly-silicon thermal shunts to reduce the device thermal impedance from 41.5 to 33.5 deg. C/W.
Synthesis and Luminescent Properties of LuAG∶Ce3+ Transparent Ceramics by Solvo-Thermal Method
Solvo-thermal LuAG∶Ce3+ Transparent ceramics
2011/5/13
The precursor powders of LuAG∶Ce3+ transparent ceramics were synthesized by solvo-thermal method. The crystal structure and morphology of powders were analyzed by means of Fourier transform infrared s...
Numerical study on thermal stress cutting of silicon wafer using two-point pulsed laser
brittle materials thermal stress laser cutting
2011/5/5
Laser cutting using the controlled fracture technique has great potential to be used for the separation
of brittle materials. In this technique, thermal stress is used to induce the crack and the mat...
We propose a mechanism for photon mediated thermal rectification through vacuum relying only on the temperature dependence of electromagnetic resonances. We also propose an example implementatio...
Exponential suppression of thermal conductance using coherent transport and heterostructures
Exponential suppression thermal conductance coherent transport heterostructures
2015/8/10
We consider coherent thermal conductance through multilayer photonic crystal heterostructures, consisting of a series of cascaded nonidentical photonic crystals. We show that thermal conductance can b...