Economic Feasibility Study of Photovoltaic Panels Installation by PVsyst 6.73 Simulator

The increasing pursuit of industry modernization presenting efficiency gains, productivity and cost reduction raises the discussion about the use of new technologies that promote, simultaneously, business sustainability and productive and economic efficiency for offshore companies, which operates in the Campos Basin, located at the municipality of Macaé, Rio de Janeiro State, Brazil. This paper presents an economic feasibility evaluation to use photovoltaic panels in order to measure the project costs and highlight its benefits; to this end, a local supplier was contacted to estimate a budget. The author ran the PVsyst 6.73 simulator to calculate the energy produced by the photovoltaic system and other parameters. Taking into account the Minimum Attractive Rate (MAR) of 8,3 percent, established by the board of directors, the results, by the Simple Payback and Discounted Payback (SPDP); Profitability Index (PI); Return on Investment (ROI); Net Present Value (NPV); and Internal Rate of Return (IRR) methods applied, proved the project is economically feasible and that this company has physical structure to install the equipment. As such, it is possible to have a great medium-and long-term financial economy, contributing to produce clean energy in the country

Strategic Management of a Work Safety Company with use of Bsc and Swot Matrix, in MACAÉ-RJ, Brazil

The purpose of this manuscript is to evaluate the importance of the use of the SWOT matrix, the competitive strategy of differentiation and the Balanced Scoredcard (BSC), in the construction of the strategic diagnosis, in a company of work safety training in Macaé-RJ, Brasl, Brazil. maintain or extend their competitive advantage. The results show that it is possible to perceive that the managers approve and consider important the use of the matrix swot the competitive strategy with a broad target in the differentiation and the Balanced Scoredcard (BSC) in the elaboration of the strategic diagnosis to maintain the competitive advantage of the company studied in the market. The conclusion of the present study was that the use of the swot technique, differentiation strategy and BSC are important for the success of strategic planning and the search for competitive advantage

The Waste Management Plan and its Efficacy in an offshore Company

The study of this paper was carried out in a company that serves several platforms of Petrobrás, in Macaé-RJ, Rio de Janeiro State, Brazil, where it has maritime chamber services, including food, cleaning, cleaning and general cleaning of the areas under the responsibility of the contractor, provision of bed linings, bath, cutlery, crockery, kitchen utensils in general and leisure items. The way to evaluate the effectiveness of the company studied was to observe compliance with the Waste Management Plan. It was found that workers had no evidence of training the less the sufficient knowledge about how to segregate the waste, and were unaware of the waste management program

Interaction Induced Quantum Valley Hall Effect in Graphene

We use Pseudo Quantum Electrodynamics (PQED) in order to describe the full electromagnetic interaction of the p-electrons of graphene in a consistent 2D formulation. We first consider the effect of this interaction in the vacuum polarization tensor or, equivalently, in the current correlator. This allows us to obtain the dc conductivity after a smooth zero-frequency limit is taken in Kubo's formula.Thereby, we obtain the usual expression for the minimal conductivity plus corrections due to the interaction that bring it closer to the experimental value. We then predict the onset of an interaction-driven spontaneous Quantum Valley Hall effect (QVHE) below a critical temperature of the order of $0.05$ K. The transverse (Hall) valley conductivity is evaluated exactly and shown to coincide with the one in the usual Quantum Hall effect. Finally, by considering the effects of PQED, we show that the electron self-energy is such that a set of P- and T- symmetric gapped electron energy eigenstates are dynamically generated, in association with the QVHE

Determination of metallic contaminants in human recombinant erythropoietin (EPO) formulations by adsorptive cathodic stripping voltammetry and UV photo-decomposition of samples

The contamination of renal failure patients by metals can be associated to the presence of toxic metals in the medication, since they can be absorbed by the organism. Among the possible contaminants, there are nephrotoxic metals such as aluminum, chromium and nickel. In the present work, the presence of Al, Cr and Ni as contaminants in erythropoietin formulations (EPO) was investigated by optimizing the adsorptive cathodic stripping voltammetric (AdCSV) method and the photo-decomposition of samples by UV irradiation. The UV irradiation of acidified EPO samples from 2 to 3 h in the presence of H2O2 allowed the efficient sample decomposition and the determination of the contaminants by AdCSV without matrix interferences. The method was applied for the determination of the metals in commercial EPO formulations used routinely in the treatment of anemia in patients undergoing chronic renal failure. The contamination levels determined in the samples ranged from 420.2 to 840.5 ng mL-1 (RSD 2-5%) for Al, 12.0 to 40.0 ng mL-1 (RSD 2-6%) for Cr and 4.1 to 8.2 ng mL-1 (RSD 3-8%). The results obtained by AdCSV were in good agreement with those obtained by the comparative GFAAS measurements. The contamination of EPO formulations with Al, Cr and Ni was shown to be a serious contamination source for anemic patients undergoing chronic renal failure