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We present a new descriptor for spontaneous facial expression recognition from videos acquired by a thermal sensor. Previous descriptors mostly compute features from RGB videos. It is difficult to process mixed and varied spontaneous expressions with a large ambiguity of facial appearances. In contrast, thermal imaging can measure autonomic activities, which are the physiological changes evoked by...
Graphene oxide, a kind of nano-fillers with desirable thermal and electrical properties, could be added to epoxy resin and achieve satisfactory dispersion status due to its hydrophilicity, which lend great help to the preparation of samples. Graphene oxide could be mixed with water since its functional groups, O-H is in harmony with water's functional groups. Furthermore, epoxy resin, flexibilizer,...
Carbon nanotube (CNT) was modified with TDI molecules in order to improve the dispersion of carbon nanotube fillers in organic phase. Semi-conductive layer prepared by epoxy matrix with 0.045 phr CNT was second-time bonded to the neat epoxy for preparing double-layer composite. Broadband dielectric spectroscopy was performed to measure the complex permittivity of neat epoxy, epoxy — CNT/epoxy double-layer...
Epoxy resin impregnated crepe paper (ERICP) composites is the main insulating material of the ultra-high voltage direct current (UHVDC) dry bushing. The moisture in the environment may intrude into the ERICP composites in the manufacturing process of the bushing, which would affect the quality of the bushing. In order to investigate the diffusion process of moisture in the ERICP composites during...
There are more and more converter transformers, bushings, smoothing reactors use epoxy resin or epoxy/insulating paper composite materials as the main insulating medium, in the UHVDC transmission projects. In practice, there are many interfaces between epoxy and insulating paper exist in paper/paper insulation system. Compared with epoxy resin, there are a lot of traps in paper. The structure of the...
The absorbed moisture of epoxy resins (ER) and epoxy resin impregnated paper (ERIP) composites have a great influence on the insulation of ultra-high voltage direct current (UHVDC) bushings. The ER and ERIP samples were prepared according to a certain formulation. The moisture absorption behaviors of ER and ERIP in deionized water were determined by measuring periodically the change of weight. Through...
In order to fulfill flow control of liquid sample caused by the microfluidic biochip, realize the miniaturization and integration of the microfluidic biochip, this paper proposed a research on the micro-liquid flow sensor. Based on the principle of thermal distribution, the micro flow sensor fabricated in this paper was composed of a sensor chip and a micro-channel chip. The sensor chip consisted...
Epoxy resin has been widely used in dry-type insulation application, such as dry-type bushings. This study focuses on the temperature effect on the space charge characteristics and dielectric properties of epoxy resin. The space charge distribution measurement has been performed at different electric fields and temperatures by the PEA method, ranging from 2kV/mm to 60kV/mm at 291K, 313K and 343K respectively...
Air conditioners possess a large proportion of the energy consumption in a building for both heating and cooling functions. The purpose of this paper is to present the work in progress which uses simple and cheap sensor nodes mounting on the external unit of air conditioners to automatically sense the usage pattern. This work is part of the project called Cyber IVY, which provides means of building...
The reduction of particulate matter (PM) emission from Diesel engines is an important challenge due to their adverse effects on human health and environment. Therefore, Diesel particulate filters (DPF) are used to trap PM in the gas exhaust lines. DPF must be regenerated periodically by burning off the PM deposit in order to prevent high back pressure level. It is well known that Balance Point Temperature...
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