In conventional speaker identification methods based on mel-frequency cepstral coefficients (MFCCs), phase information is ignored. Our recent studies have shown that phase information contains speaker dependent characteristics. We propose a new extraction method to extract pitch synchronous phase information from the voiced section only. Speaker identification experiments were performed using t...

background: the study of specific genes expressed in the testis is important to understanding testis development and function. spermatogenesis is an attractive model for the study of gene expression during germ cell differentiation. spermatogenesis associated-19 (spata-19) is a recently-identified important spermatogenesis-related gene specifically expressed in testis. its protein product is in...

Under RFID sensor network environment, there are many situations to accommodate a number of RFID sensors within a specific area. In this paper, we build an analytical model of RFID sensor network and develop the analysis by using queuing system with ∞ / / 1 / / N M M . In order to study the application in RFID sensor network for the queue model, we give out long-run Time-average number of RFID ...

This paper presents an ultra-low embedded power temperature sensor for passive RFID tags. The temperature sensor converts the temperature variation to a PTAT current, which is then transformed into a temperature-controlled frequency. A phase locked loop (PLL)-based sensor interface is employed to directly convert this temperature-controlled frequency into a corresponding digital output without ...

In this thesis, I aim to build an accurate fine-grained retail product recognition system for improving customer in-store shopping experience. To achieve high accuracy, I developed a two-phase visual recognition scheme to identify the viewed retail product by verifying different types of visual features. The proposed scheme is robust enough to distinguish visually similar products in the tests....

A system simulation environment in Matlab/Simulink of RFID is constructed in this paper. Special attention is emphasized on the analog/RF circuit. Negative effects are concerned in the system model, such as phase noise of the local oscillator, TX-RX coupling, reflection of the environment, AWGN noise, DC offset, I/Q mismatch, etc. Performance of the whole system can be evaluated by changing the...

Recently, Alomair et al. proposed the first UnConditionally Secure mutual authentication protocol for lowcost RFID systems(UCS-RFID). The security of the UCSRFID relies on five dynamic secret keys which are updated at every protocol run using a fresh random number (nonce) secretly transmitted from a reader to tags. Our results show that, at the highest security level of the protocol (security p...

Design of controller for the process operation is typically based on the availability of the best model. Development of empirical model is incorporated with many assumptions and approximations. System identification is developed to alleviate this problem by considering the input and output data of the process for the model development. The cascaded tank process is highly nonlinear and non-minim...

Echo state networks (ESN) are a novel approach to recurrent neural network training. An ESN consists of a large, fixed, recurrent "reservoir" network, from which the desired output is obtained by training suitable output connection weights. Determination of optimal output weights becomes a linear, uniquely solvable task of MSE minimization. This article reviews the basic ideas and describes an ...

The present study evaluates four designs of XOR using our previously reported two-phase clocked adiabatic static CMOS logic (2PASCL) circuit techniques. 2PASCL XOR, which demonstrates the lowest power dissipation, is used for a 4ˆ4-bit array 2PASCL multiplier. Based on simulation results obtained using 0.18 —m standard CMOS technology, at transition frequencies of 1 to 100 MHz, the 4ˆ4-bit arra...