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Skin biopsies are frequently performed for the diagnosis of skin diseases. However, the invasive nature of biopsies confers many disadvantages. Non-invasive imaging using optical coherence tomography (OCT) with automated disease detection can help reduce requirements for biopsies. One of the features in skin diseases is abnormal epidermal thickness. Automated determination of epidermal thickness requires...
The optimal modified tracking performance of single-input single-output (SISO) discrete-time networked control systems (NCSs) with packet dropouts is investigated in this paper. An explicit expression is obtained by using the method of partial fraction and co-prime factorization. A new modified tracking performance index of NCSs is provided to present variations in the tracking error when there is...
With the scale of the city and the population rising in a very fast way, drainage system of cities in our country are facing huge challenge and pressure. For now, the drainage devices are overrunning and aging without timely maintenance which makes the whole drainage system running in a high risk. So there's a great need to establish a reliable evaluation system of the quantitative analysis and evaluation...
This study aims to carefully analyze the urban heat island (UHI). Using the LST images from the MODIS and LANDSAT 8, high spatial-temporal resolution LST from May to November in 2013 were generated with the Spatial and Temporal Adaptive Reflectance Fusion Model (STARFM). Furthermore, the relationships between urban LST and four Landscape Metrics were analyzed based on two GaoFen imageries. UHI effects...
Evapotranspiration (ET) is crucial to water resource management, and regional ET is usually estimated by remote sensing. However, ET estimates through remote sensing are instantaneous values that need to be converted into daily totals. The study proposed the Gaussian fitting method to convert instantaneous ET retrieved by remote sensing into daily ET in Northwest China. Results showed that the Gaussian...
Fingerprint recognition is a method commonly utilized for both personal identification and security control in practice. Based mainly on 2D surface topography analysis, however, most of the existing methods are prone to both spoofing attacks and fingertip surface conditions. To address such issues, we report on an internal fingerprint detection method based on the papillary layer anatomical structures...
Underwater target recognition is a challenging task due to the unrestricted environment of the ocean. With large datasets, deep learning methods have been applied with great success to the image recognition of objects in the air. However, it has been observed that deep neural networks (DNNs) easily suffer from overfitting with small samples. Underwater image acquisition always requires much manpower...
Drainage pumping station is an indispensable part of the drainage works, and the water hub for the urban drainage system's normal operation. The water cycle and transportation in urban drainage system are completed by a series of different functions of the drainage pumping stations, which burden the task of pumping the domestic sewage, industrial waste water and rainwater to the downstream pipe, water...
PoC is a group communication service using VoIP technology based on 3G cellular network packet domain carrier. ROHC can complete the header compression in PS domain of 3G network, which can improve the efficiency of wireless transmission. This paper analyzes the working principle and the operation modes of ROHC, designs the processing of the compressor and decompressor. Simultaneity an improved algorithm...
The Viterbi algorithms of the tail biting convolutional code in TD-LTE system is introduced. Aiming at the decoding commons for the convolutional codes of TD-LTE system, this paper presents an implementation program of Viterbi decoding algorithm based on the soft-decision, and validates the algorithm by means of FPGA in the Xinlinx's XC5VSX95T chip, the program simplifies some decoding operations...
Vehicular Ad hoc Networks (VANETs) using wireless multi-hop technology have recently received considerable attention. Because of frequent link disconnection caused by high mobility and signal attenuation due to obstacles (e.g. tall buildings) in urban areas, it becomes quite challenging to disseminate packets to destinations locating in a specified area. We proposed a novel geocast routing protocol...
A novel temperature analysis method for compound semiconductor integrated circuits based on iteration algorithm has been presented. The iteration algorithm has been developed with efficient numerical calculation in MATLAB. This method has been applied to a simple module including 9 devices and the calculated temperature distribution has been compared to the simulated result by 3D simulation tool....
A comprehensive behavioral model of Track-and-Hold Amplifier (THA) based on GaAs HBT, implemented in MATLAB-SIMULINK platform, is presented in this paper. The main error sources of the holding capacitor and non-linear on-resistance are investigated, and the relative non-idealities are modeled. With the behavioral model, SIMULINK simulations were performed to analyze the non-ideal error sources and...
We report the characteristics of HfO2/Al2O3 gate dielectric nanometer-stacks deposited on InAlAs at 245 °C by atomic layer deposition. The annealing effect on the interface and electrical properties of stack films was investigated by X-ray photoelectron spectroscopy, and electrical measurements. It is demonstrated that the resultant of As2O3 during annealing is suppressed by Al2O3 layer. The annealed...
In this article, the effect of proton irradiation on the DC characteristic of InP/InGaAs heterojunction is studied with varying fluences and proton energies. The current-voltage (I–V) before and after proton irradiation are compared. The result indicates that higher device current is caused by lower energy proton irradiation and the increase of fluences for the proton energy less than 3MeV. The density...
Cooperation is a fundamental aspect of biological systems and human society. In this work, we propose a generalized prisoner's dilemma quantum game and study the game on Watts-Strogatz small-world network (WS model) with different values of entanglement. Here entanglement is used as a metaphor to study relationship between players. In a single step, each player has three strategies to choose: cooperation,...
In this paper, a system solution is designed to improve the service efficiency of intersection. For the purpose, a method of trajectory prediction for vehicle is put forward, which is based on the basis of realize multi-targets tracking. The characteristics of traffic video, structural of road profile and movement of vehicles have been analyzed. We designed the multi-targets tracking algorithm based...
The in vivo assessment and visualization of skin structures can be performed through the use of high resolution optical coherence tomography imaging, also known as HD-OCT. However, the manual assessment of such images can be exhaustive and time consuming. In this paper, we present an analysis system to automatically identify and quantify the skin characteristics such as the topography of the surface...
Basal cell carcinoma (BCC) is the most common non-melanoma skin cancer. Conventional diagnosis of BCC requires invasive biopsies. Recently, a high-definition optical coherence tomography (HD-OCT) technique has been developed, which provides a non-invasive in vivo imaging method of skin. Good agreements of BCC features between HD-OCT images and histopathological architecture have been found. Therefore...
The Bat uses Frequency Modulated (FM) echolocation calls to accurately estimate range and resolve closely spaced as 2 us objects. In this paper, a modified echolocation model for multiple targets in 3-dimensional space using hyperbolic frequency modulation emission is proposed. The method to modify parameters in all blocks using LFM waveform echolocation model is given. The simulation results show...
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