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This paper presents a thermal THz detector based on commercial CMOS technology working at room temperature consisting of a loop antenna and a NMOS temperature sensor. The THz electromagnetic wave is absorbed by the loop antenna at first, then the absorbed energy is converted into heat via a resistor. The temperature rise of the resistor is finally detected by a NMOS temperature sensor. The physical...
Using laser ablation method, we taper photonic crystal fiber (PCF) with keeping its inner structure well and then we achieved the TPG where the phase matching point PW is 512nm and THG is 1536nm with effective refractive index is 1.1314. Finally we calculate the evolution of the conversion efficiency as a function of the fiber length.
This paper proposes a novel method for two-dimensional (2-D) direction-of-arrival (DOA) estimation of multiple signals employing a sparse L-shaped array structured by a sparse linear array (SLA), a sparse uniform linear array (SULA) and an auxiliary sensor. In the proposed method, the elevation angles are estimated using the SLA and an improved MUSIC method. The azimuth angles are estimated by two...
This paper presents device and mixed-mode simulations of single photon avalanche diode (SPAD) device. Device simulations show that the breakdown mechanism of our diode is indeed avalanche. Mixed-mode simulations can accurately simulate the ignition of the detector due to photon absorption, the fast avalanche current build-up, the self-sustaining charge-multiplication process, and the self-quenching...
A novel least square (LS) localization method for wireless sensor networks (WSNs) using received signal strength indicator (RSSI) is proposed in this paper. Unlike previous LS methods, the proposed method performs location calculation with the aid of the condition number of coordinate matrix to avoid the appearance of outliers. The threshold of condition number is introduced in this paper to avoid...
In this paper, a novel method for two-dimensional (2-D) direction-of-arrival (DOA) estimation employing a sparse L-shaped array is proposed. The array composed of one traditional uniform linear array (ULA), one sparse ULA and an auxiliary sensor. In the proposed method, the elevation angles are estimated by two steps. The first step is to estimate the ambiguous elevation angle by the ESPRIT-like method...
In this paper, we propose a novel greedy pursuit algorithm for direction-of-arrival (DOA) estimation of multiple moving sources with time-variant DOAs. A prior support set of DOAs and a metric information are assumed to be available. Different from the traditional greedy pursuit algorithms which don't exploit prior support but select entries over the entire signal index set, or exploit the prior statically,...
Lysine (K) acetylation refers to transfer of the acetyl moiety from acetyl-CoA to the ε-amino group of a lysine residue. This is posttranslational and reversible, with its level dynamically maintained by lysine acetyltransferases (KATs) and deacetylases (KDACs). Traditionally, eukaryotic KDACs have been referred to as HDACs (histone deacetylases). Recent proteomic studies have revealed that hundreds...
The dynamic interchange of information within a cell, which subsumes the regulation of protein function, activity and multiprotein complex membership, depends upon the flux of the sets of modifications of proteins present in a specific cell at defined times, and the actions of various modules recruited to the resulting interaction platforms. These modifications interact functionally with each other...
Based on a pure electric vehicle power system and battery box arrangements, static and modal performance sensitivity analysis of the vehicle passenger compartment floor assembly was conducted. The results showed that the floor strengthening beams contributed little to the vehicle performances, which indicated the necessity of floor beam redesign. The topology optimal design of floor strengthening...
With the development of the Wireless Sensor Network (WSN), the number of sensor nodes in WSN is so large while one single node's resource is quite limited. One of the key goals of designing routing protocol of WSN is to reduce the energy consumption and maximize the networks' overall survival time. ICCA presents one cluster heads choosing algorithm based on the Low-Energy Adaptive Clustering Hierarchy...
The paper presents modern PLC's network to Physiological parameter monitoring technology. In this paper a founding method and implement of the system for personal and real-time monitoring is described, including the operation of the whole system. The tests demonstrate that the system is stable, reliable as well as high timely and accuracy. This paper accords with the trend that the network is becoming...
For the complexity of calculating and analyzing the guided wave propagation and defect reflection in steel pipes, and the instructional role on studying the characters of T(0,1) mode guided wave to experimental studies, a method associating guided wave theory with numerical solution was applied to simulate T(0,1) mode guided wave propagation and defect reflection in steel pipes by building models,...
In a pot experiment, different measures were conducted to improve coal waste rock contaminated soil and explored growth, photosynthesis and yield traits of soybean under different improvement measures. Three improvement measures were employed: A (filled with fly ash), B (filled with dairy manure), C (filled with fly ash and dairy manure), the control (CK) is mixed soil (topsoil and coal waste rock)...
Digital Video image scaling is a full-fledged technology, and can be found everywhere in our daily life. However, the appearance of HDTV brought some problem between the new display devices and the old video signals. In this paper, a novel method of nonlinear scaling is proposed, aim to overcome the compatibility problem. Different from traditional linear approaches, in which the interpolate points...
Acoustic emission (AE) signal of pipeline leak carries the feature information of structure integrity (the dimension and location of leak source), whereas it is stochastic and uncertain. It belongs to random and non-stationary signals in its statistics. Because of the background noise and the complexity of AE signal transmission, it is very difficult to identify the AE source. Presented in this paper...
Leaks in gas pipelines cause unnecessary waste of limited resources and produce danger factors, thus leak testing is necessary. Acoustic emission (AE) technology is one of the promising methods for pipeline leak testing. AE signals of pipeline leak carry the feature information of structure integrity (the dimension and location of leak source, etc.), which are stochastic and uncertain, and belongs...
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