Electronics

Design of 64-bit squarer based on vedic mathematics
"Vedic mathematics" is the ancient methodology of mathematics which has a unique technique of calculations based on 16 "sutras" (formulae). A Vedic squarer design (ASIC) using such ancient mathematics is presented in this paper. By employing the Vedic mathematics, an (N × N) bit squarer implementation was transformed into just one small squarer (bit length ≪ N) and one adder which reduces th...


Soft error rate estimation for combinational logic in presence of single event multiple transients
Fast and accurate estimation of soft error rate in VLSI circuits is an essential step in a soft error tolerant ASIC design. In order to have a cost effective protection againt radiation effects in combinational logics, an accurate and fast method for identification of most susceptive gates and paths is needed. In this paper, an efficient, fast and accurate method for soft error propagation prob...
Analysis of sub-THz radiation detector built of planar antenna integrated with MOSFET
In this paper an approach to analysis of responsivity of MOSFET-based detectors of THz radiation has been presented. The authors have analyzed the substrate modes that affect performance of antennas that are always used as a part of detecting structures, and should be accounted for by proper choice of the substrate geometry. Then, a methodology to combine extracted properties of an arbitrary an...


Pulse shrinking time-to-digital converter for UWB application
A kind of architecture of Time-to-Digital Converter (TDC) for Ultra-WideBand (UWB) application is presented. The proposed TDC is based on pulse shrinking, and implemented in a Field Programmable Gate Array (FPGA) device. The pulse shrinking is realized in a loop containing two Programmable Delay Lines (PDLs) or a two-channel PDL. One line (channel) delays the rising edge and the other line (cha...
4-element planar array antenna for UWB application
A novel low-cost 4-element planar array antenna directly fed by a coaxial cable for Ultra-WideBand (UWB) application is presented. The proposed antenna consists of 2×2 bowtie elements and a simple 1:4 power divider feeding network. Compared to the basic bowtie element, the impedance bandwidth of the array antenna has a significant improvement that the low cut-off frequency is extended from 6 G...


Timing slack optimization approach using FPGA hybrid routing strategy of rip-up-retry and pathfinder
To improve the path slack of Field Programmable Gate Array (FPGA), this paper proposes a timing slack optimization approach which utilizes the hybrid routing strategy of rip-up-retry and pathfinder. Firstly, effect of process variations on path slack is analyzed, and by constructing a collocation table of delay model that takes into account the multi-corner process, the complex statistical stat...
Ultralow-Power SOTB CMOS Technology Operating Down to 0.4 V
Ultralow-voltage (ULV) CMOS will be a core building block of highly energy efficient electronics. Although the operation at the minimum energy point (MEP) is effective for ULP CMOS circuits, its slow operation speed often means that it is not used in many applications. The silicon-on-thin-buried-oxide (SOTB) CMOS is a strong candidate for the ultralow-power (ULP) electronics because of its smal...

A Practical Multirobot Localization System
We present a fast and precise vision-based software intended for multiple robot localization. The core component of the software is a novel and efficient algorithm for black and white pattern detection. The method is robust to variable lighting conditions, achieves sub-pixel precision and its computational complexity is independent of the processed image size. With off-the-shelf computational e...
A physics-based scheme for potentials of a-Si:H TFT with symmetric dual gate considering deep Gaussian DOS distribution
Taking deep Gaussian and tail exponential distribution of the density of states into account, a novel scheme for potentials of amorphous silicon thin film transistor using symmetric dual gate has been present. The proposed scheme, valid from below to above threshold regimes, provides a completed solution of the potentials at the surface and mid of the layer without solving any transcendental eq...

A threshold voltage model of short-channel fully-depleted recessed-source/drain (Re-S/D) UTB SOI MOSFETs including substrate induced surface potential effects
In this paper, a threshold voltage model of short-channel recessed-source/drain (Re-S/D) ultra-thin body (UTB) SOI MOSFETs has been presented considering the substrate induced surface potential (SISP) to improve the model accuracy over wide ranges of device parameters and substrate bias. The potential distribution of the front and the back surfaces of the Si-body have been derived using the eva...
Charging and exciton-mediated decharging of metal nanoparticles in organic semiconductor matrices
Gold nanoparticles (Au-NPs) were deposited on the surface of n- and p-type organic semiconductors to form defined model systems for charge storage based electrically addressable memory elements. We used ultraviolet photoelectron spectroscopy to study the electronic properties and found that the Au-NPs become positively charged because of photoelectron emission, evidenced by spectral shifts to h...

Day-ahead dispatch strategy for integrated system of wind/photovoltaic/pumped-storage/gas-turbine-power/energy storage based on multi-frequency scale of PWP
A day-ahead dispatch strategy for the integrated system of wind/photovoltaic/pumped-storage/gas-turbine-power/energy storage is proposed based on the multi-frequency scale power of wind/photovoltaic (PWP). First, filter analysis of the PWP is carried out according to the control target of the system to get the components of PWP under different frequency scales; thus, the power output of differe...
Multi-period service restoration of distribution systems incorporating interruptible load
A multi-period service restoration optimization method incorporating interruptible load is presented, which considers operational constraints based on the practical requirements of dispatching interruptible load, such as notification time, interruption duration and interruption capacity. The Node-Depth Encoding (NDE) technique is introduced into the Non-Dominated Sorting Genetic Algorithm-II. T...
Towards new competitive electricity markets based on information transparency: Hypaethral market
There has been growth research interest in the area of competitive electricity markets. The studies mostly concentrate on the type of competitive electricity markets and the structure of active institutions in this field. In the competitive electricity markets, supplier information is an important parameter. Therefore, having more information from the other competitors results in the ability of...
A novel method to prevent incorrect operation of synchronous generator loss of excitation relay during and after different external faults
This paper presents a novel method for synchronous generator loss of excitation (LOE) protection during and after different external faults. This method is based on the variation of the magnetic flux linkage in the air gap combined with negative sequence current. Extensive simulations show that the proposed method has various distinct features that are advantageous over existing schemes. Speed ...