Peiman Keshavarzian

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Carbon Nanotube filed-effect transistor (CNFET) is one of the promising alternatives to the MOS transistors. The geometry-dependent threshold voltage is one of the CNFET characteristics, which is used in the proposed Full Adder cell. In this paper, we present a high speed Full Adder cell using CNFETs based on majority-not (Minority) function. Presented(More)
In this paper two ultra high speed carbon nanotube FullAdder cells are presented. First design uses two transistors, two resistors and seven capacitors and the second one uses four transistors and seven capacitors. The first design is faster and the second one consumes less power. Simulation results illustrate significant improvement in terms of speed and(More)
Breast cancer is regarded as one of the most frequent mortality causes among women. As early detection of breast cancer increases the survival chance, creation of a system to diagnose suspicious masses in mammograms is important. In this paper, two automated methods are presented to diagnose mass types of benign and malignant in mammograms. In the first(More)
In a VLSI circuit, about 70 percent of area occupies by Interconnection. Such a large number of area occupation leads to many limitations of fabricating and applying in binary circuit implementation. Multiple-valued logic is one of the most proper way to improve the ability of value and data transferring in binary systems. Nowadays as small portable devices(More)
Krill herd optimization algorithm is a biological optimized algorithm which simulates Krill group social behavior in order to solve global optimization problems. The position of each krill in time period is dependent on induced movement of other krills, foraging activity and physical diffusion. In this paper, chaos theory is combined with KHA to improve(More)
Presenting a novel full adder cell will be increases all the arithmetic logic unit performance. In this paper, We present two new full adder cell designs using carbon nanotube field effect transistors (CNTFETs). In the first design we have 42 transistors and 5 pull-up resistance so that we have achieved an improvement in the output parameters. Simulations(More)
In this paper, we propose new universal designs of ternary-valued logic (TVL) with high-speed, low-power and full swing output using carbon nanotube FETs (CNTFETs). All of the TVL functions (3 functions) can be implemented in these designs. Ternary value logic is a promising alternative to binary logic due to the reduced integrated circuit (IC)(More)
Into an era of nanotechnology, molecular devices are becoming promising alternatives to the existing silicon technology. Carbon nanotube field effect transistors (CNFETs) are being extensively studied as possible successors to Silicon MOSFETs. Research has started in the earnest to understand the device physics of CNFETs as well as to explore possible(More)