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We report high quality InAsSb films grown on Ge substrates with a GaAs intermediate layer via metal-organic chemical vapor deposition. The properties of the grown InAsSb films are systematically analysed. It is found that the grown InAsSb films by this method have high quality with very smooth, mirror-like morphology, and high optical quality. In particular, strong PL peak at around 3550 nm can be...
Based on spectral domain method (SDM), an asymptotic approach to the investigation of the reflection of electromagnetic waves from a metal plane interface separating a vacuum half-space and a anisotropic plasmas layer is presented. Firstly, the spectral formulas of type I and type II waves existing in the plasmas are deduced. Then the boundary conditions at the top and bottom interfaces of the plasmas...
Modal filtering in nulling interferometer is based on the capability of single-mode waveguides to transmit only one complex amplitude function to eliminate virtually any perturbation of the interfering wavefronts. In this recherche, we focus on realizing single-mode waveguide of chalcogenide glasses in the thermal infrared range 6–20μm. The present paper aims at introducing the component requirements...
Aiming at the scatter problem in Cone Beam Computed Tomography (CBCT) system, an improved scatter correction method based on Beam Attenuation Array (BAA) was proposed. In this method, BAA and filter plate are used as the scatter detection devices to scan 3 times and acquire 3 sets of projection images. The scatter values on the projection centers of the small ball array of BAA are calculated by using...
Green roof is proved to be one of the best urban rainwater management means. This study is to evaluate the effect of an extensive green roof on rainwater retention and runoff process during individual rain storms under the climate of Central China. In situ tests was conducted on the simulated green roof plot together with a simulated conventional roof plot on a roof top of a Teaching building in Xiangfan...
In this article, a novel compact microstrip-fed slot antenna with dual band-notched characteristic is proposed. The proposed antenna consists of a circular patch and a multiple ground plane. By inserting two U-shaped slots to the circular patch and adjusting the dimensions of the slots, the antenna can reach a frequency band-width from 2.9 to 15.6 GHz for voltage standing wave ratio (VSWR) <; 2...
Wettability of growth media is an important practical factor in soilless culture. The study was conducted to improve the water absorbing ability for green waste compost (GWC) as growth media with wetting agent. The experiments were divided into two sections. First, compost maturity assessment was performed by germination bioassay using Lepidium sativum L. (cress) as an indicator and germination index...
Bio-and nano-material arrays have attracted significant attention due to their importance in a number of research and application fields, such as biology, sensors, devices, etc. How to generate these arrays in a controlled manner is critical. In this talk, we introduce several methods developed in our group to show how to control the growth of bio-and nanoarrays on patterned solid substrates. By using...
Bio- and nano-material arrays have attracted significant attention due to their importance in a number of research and application fields, such as biology, sensors, devices, etc. How to generate these arrays in a controlled manner is critical. In this talk, we introduce several methods developed in our group to show how to control the growth of bio- and nanoarrays on patterned solid substrates. By...
The classification and property of constructed wetland substrate has been reviewed, various substrates for phosphorus removal due to different P-adsorptive capacity have been summarized and the main influencing factor about substrates for phosphorus adsorption capacity has been investigated. At last, the paper puts forward prospect in development and selection media of constructed wetland imperatival...
A 2-D smart wind sensor with self-testing function was designed, fabricated and tested in this paper. It is composed of cross-structure heaters and four symmetrically located sensing parts. When the flow angle changes clockwise, the temperature differences among the four parts, namely T13 (T24) and T12 (T14) will be sine (cosine) functions of wind direction. Further study shows that the amplitudes...
A two dimensional wind sensor was designed, fabricated and packaged on ceramic substrate instead of silicon substrate. The Ti/Pt heater and thermistors were fabricated using single lift-off process. The gold bumps were then sputtered and patterned on the chip using lift-off process again. Correspondingly, the Pb/Sn bumps were fabricated on the FR4 substrate using stencil printing method after metallization...
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