RETRACTED ARTICLE: Optimized power generation in solar using carbon substrate for reduced greenhouse gas effect

Multiple valued logic (MVL) can represent an exponentially higher number of data/information compared to the binary logic for the same number of logic bits. Compared to the conventional devices, the emerging device technologies such as Graphene Nano Ribbon Field Effect Transistor (GNRFET) and carbon nanotube field effect transistor (CNTFET) appears to be very promising for designing MVL logic gates and arithmetic circuits due to some exceptional electrical properties such as the ability to control the threshold voltage. This variation of the threshold voltage is one of the prescribed techniques to achieve multiple voltage levels to implement the MVL circuit.This work presents a 4-input ternary adder using carbon nanotube field effect transistor (CNTFET). Many researchers have been done work on implementation of ternary adders and multipliers. But no one has done the comparison of this proposed ternary adder with different types of nano transistors. Hence this work has been proposed a design of low power and high speed 4-input adder which will be useful for designing of fast ternary multipliers. All the proposed designs have been simulated using emerging device such as CNTFET at 32nm technology node. From the simulations, we have calculated the power consumptions of the proposed designs, carry propagation delay and power delay product for the CNTFET circuits. It has been observed that CNTFET based proposed logic circuits given a better performance than the conventional logical circuits.

Section: Results Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance analysis of 4-bit ternary adder and multiplier using CNTFET for high speed arithmetic circuits

Venkataiah¹,

Y.²,

Jayamma³

et al. 2023

“…So, researchers found the novel use of this waste as a replacing material for the concrete. It is known fact that the cement production emits carbon dioxide into the atmosphere leaving a substantial carbon footprint on the environment where as this material ferrock is a carbon negative material which means that carbon dioxide is removed from the atmosphere by the ferrock material [6].…”

Section: Introductionmentioning

confidence: 99%

Optimization of solids composition in ferrock mortar

Shaik¹,

Krishna²,

Satyanarayana³

et al. 2023

Ferrock is the commercial name given by the Dr Stone working with university of Arizona which holds the patent on this novel material. This is an alternative material developed for structural applications in place of concrete. In this paper, ferrock mortar is prepared with various solids such as iron powder, iron dust, cement and fly ash to establish the optimum combinations of solids for preparing the high strength ferrock systems. Iron dust in the form of powder (size less than 90 microns) and fine aggregate (size between 150 microns to 2.36mm) is used in the study to develop the iron carbonate matrix which is major binding material in ferrock. For the process of iron carbonation, carbon dioxide is prepared from the chemical reaction of sodium bicarbonate and acetic acid. Iron dust cubes are carbonated to form iron carbonation matrix upon fusion. This material has very high strength than the references cement mortar samples.

“…Those particles known as nanoparticles have at least one dimension that is less than 100 nanometers (nm) [2]. Due to their strong reactivity, nanoparticles can serve as heterogeneous nuclei for cement pastes, accelerating cement hydration further, and as nano-filler, densifying the microstructure and reducing porosity [3][4][5]. Numerous nanoparticles, including nano-clay, nano-fly ash, nano-limestone, nano-TiO2, nano-Fe3O4, nano-Al2O3, and nano-SiO2, have been used to enhance the properties of cementitious composites as of late [6].…”

Section: Introductionmentioning

confidence: 99%

Effect of particle size of colloidal nano-silica on the properties of the SCM based concrete

Kumar

Rao²,

Reddy³

et al. 2023

In the current study, effect of particle size of colloidal nano-silica on the properties of the SCM based concrete is studied. The nano-silica particle sizes adopted for the study are 30nm, 60nm and 90 nm. The M20 grade concrete system is made up of cement (C), fly ash (FA), micro-silica (mS) and nano-silica (nS). Compressive strength test at 60 days and pore structure analysis are carried out for C-FA-mS-nS system. The hydration of Portland cement is significantly influenced by the colloidal nanosilica (CNS) particle size. High doses of nS content boost the pozzolanic reaction and the creation of CSH and CASH gels, but they also have a negative impact on the strength development of the material by increasing microcracking due to the self-desiccation effect. The addition of nanosilica to concrete can significantly enhance its qualities after hardening because it ensures the pozzolanic reaction, the seeding effect, which both increase the degree of hydration, and the filling effect, which can fill the internal porosity defects. The cement-mS system's impermeability was greatly improved by the nS because it improved the microstructure, increased the complexity of the pore structure, and refined the pore structure.