Objective: Different categories are available for estimating of radiation dose. Radioisotopes with the same energy and almost the same physical properties have similar effects. Monte Carlo technique is a computerized method based on mathematical simulation of physical processes. The main purpose of this study is to show that beta particles are not able to penetrate deep into the water. also dif...

Quantum-dot Cellular Automata (QCA) has emerged as one of the alternative technologies for current CMOS technology. It advantage computing at a faster speed, consuming lower power, and work Nano- Scale. Besides these advantages, QCA logic is limited to its primitive gates, majority voter inverter only, results in limitation cost-efficient circuit realization. Numerous designs have been proposed...

moving towards nanometer scales, quantum-dot cellular automata (qca) technology emerged as a novel solution, which can be a suitable replacement for complementary metal-oxide-semiconductor (cmos) technology. the 3-input majority function and inverter gate are fundamental gates in the qca technology, which all logical functions are produced based on them. like cmos technology, making the basic c...

This paper is based on analysis of a common source - common gate low noise transconductance amplifier (CS-CG LNTA). Conventional noise analyses equations are modified by considering to the low output impedance of the sub-micron transistors and also, parasitic gate-source capacitance. The calculated equations are more accurate than calculated equations in other works. Also, analyses show that th...

introduction: breast milk is a complete food for growing children until 6 months of age, and mothers, as the most important child health care, play a decisive role in their growth. so promoting  their attitude toward the benefits of breastfeeding ensures guarantee child health in the future. this study aimed to assess maternal knowledge and attitude of mashhad toward exclusive bmf in the first ...

Background: Exclusive breastfeeding is the best pattern for feeding infants in the first 6 months of life. On the other hand, lactation patterns may be influenced by cultural factors. The present study aimed to determine relationships of Hofstede's cultural dimensions and lactation patterns in lactating mother. Material...

In this work, the design and analysis of new Level Shifter with Gate Driver for Li-Ion battery charger is proposed for high speed and low area in 180nm CMOS technology. The new proposed level shifter is used to raise the voltage level and significantly reduces transfer delay 1.3ns (transfer delay of conventional level shifter) to 0.15ns with the same input signal. Also, the level shifter with g...

the present analytical study was designed to determine the factors associated with exclusive breastfeeding in primary health centers of kermanshah in 2007. 168 mothers with infants aged 6-12 months, with or without exclusive breastfeeding were studied. data analysis was carried out using descriptive and analytic statistics. in exclusive breastfeeding group the respiratory and gastrointestinal d...