in this paper, a new and ecient approach is applied for numerical approximationof the linear dierential equations with variable coecients based on operational matriceswith respect to hermite polynomials. explicit formulae which express the hermite expansioncoecients for the moments of derivatives of any dierentiable function in terms of theoriginal expansion coecients of the function itse...

The implementation of economic projects by targeting the subsidies can have a great effect on the cost competitiveness of the industries and their products. The global steel industry has been considered as a basic key industry in the industrialized countries. It is also among the industries that may be seriously affected by the enforcement of subsidies. This industry, requiring energy and high-...

The paper presented a hybrid micro-grid renewable energy of different sources to generate uninterrupted electricity for the Agu-Amede village using PV, diesel, biogas, and battery. system optimization was performed determine techno-economic analysis generated HOMER software. by able meet demand load at all levels biomass production with surplus in each case when biogas varied between 0.5 tons 3...

in this paper smart operation of micro energy hub is presented. energy hub system consists of certain energy hubs and interconnectors that are coordinated by energy hub system operator. an energy hub contains several converters and storages to serve demanded services in most efficient manner from available energy carriers. in this paper, the flexibility of energy delivery point is enhanced u...

DSBNþ, a conjugated oligoelectrolyte (COE), was added to microbial electrolysis cells (MECs) to improve hydrogen recovery. The volume of hydrogen gas recovered in a fedbatch cycle of mixed culture MECs increased by 126 compared to controls (no COE addition), mainly by preventing the loss of hydrogen to methane production. Performance in pure culture MECs fed with Geobacter sulfurreducens increa...

Supercritical carbon dioxide (sCO2) cycles can achieve higher efficiencies than an equivalent steam Rankine cycle at turbine inlet temperatures (>550 °C) with a compact footprint (tenfold). sCO2 are low-pressure ratio (~4–7), therefore recuperation is necessary, which reduces the heat-addition temperature range. Integration of boiler requires careful management low-temperature heat to plant eff...

the implementation of economic projects by targeting the subsidies can have a great effect on the costcompetitiveness of the industries and their products. the global steel industry has been considered as a basickey industry in the industrialized countries. it is also among the industries that may be seriously affected by theenforcement of subsidies. this industry, requiring energy and high-tec...

We investigate the derivation and the mathematical properties of a Saint-Venant model with an energy equation and with temperature-dependent transport coe±cients. These equations model shallow water °ows as well as thin viscous sheets over °uid substrates like oil slicks, atlantic waters in the Strait of Gilbraltar or °oat glasses. We exhibit an entropy function for the system of partial di®ere...

The following problem arises in connection with checking the equivalence piecewise-linear (PL) sets. Consider two-variable polynomials with non-negative integer coe cients, and given two such polynomials, decide if they are equivalent to each other modulo the following equalities x = 2x + 1, y2 = 2y2 + y and y = x + y + 1. In this paper, we show that this problem can be solved in polynomials ti...