DSpace Repository

# Faculty of Mathematics and Natural Sciences

## Recent Submissions

• (Elfitra, 2023-11)
This articel discusses the application of location-allocation model in optimizing the number and location of fire stations in Pekanbaru City. This quantitative locationallocation model is solved by formulating the Set ...
• (Elfitra, 2023-11)
This article project discusses a new family of optimal fourth-order iterative method to solve a nonlinear equation. Analytically using the Taylor expansion and geometric series that the iterative method has a convergence ...
• (Elfitra, 2023-11)
Decision support systems generally apply criteria weighting as an important stage in the resolution process. The method that applies weighting criteria is Multi-Attributive Border Approximation Area Comparison (MABAC). ...
• (Elfitra, 2023-11)
This article discusses a three-step iteration method obtained from the third-order Homeier method by adding a Newton step and approximating the derivative in last step of iteration by using linear interpolation. Convergence ...
• (Elfitra, 2023-11)
Palm shells (Elaeis gueneensis Jacq.) is one of the materials that can be used as a good raw material for making active charcoal. Active charcoal can be used as an adsorbent for metals, non-metals and organic compounds. ...
• (Elfitra, 2023-11)
This article discusses the formula determinant for the Lucas-Sylvester-Kac matrix of order n × n. In addition, this final project also aims to show how the Lucas- Sylvester-Kac matrix satisfies matrix centrosymmetric ...
• (Elfitra, 2023-11)
This article discusses the use of the Set Covering Problem (SCP) model in determining the optimal location and number of fire stations in Pekanbaru City. The SCP model includes Location Set Covering Problem (LSCP) and ...
• (Elfitra, 2023-11)
This article discusses the interaction between two populations namely prey and predators, which is then investigated using the Leslie type with an increased functional response. In the observed model, it is shown that ...
• (Elfitra, 2023-11)
This research aims to analyze the effect of activation on the characterization results of pineapple leaf charcoal and determine the optimum adsorbent dose and optimum contact time for the adsorption of activated pineapple ...
• (Elfitra, 2023-11)
This article discusses the alternative diagonalization process on the triangular fuzzy number matrix of size n×n in parametric form. Many forms of arithmetic operations have been given by the author, especially triangular ...
• (Elfitra, 2023-11)
"Magneto Impedance, as a promising alternative in detecting magnetic fields, has undergone rapid development in altering the electrical impedance experienced by conductors when exposed to magnetic fields. This research ...
• (Elfitra, 2023-11)
Indonesia has 42,210 rivers whose utilization has not been optimized 12,894 MW of water energy potential in 89 power generatim locations, and there are about 2,275 villages out of 74,961 villages in Indonesia that do not ...
• (Elfitra, 2023-11)
This article discusses the dynamics of the predator-prey model with prey refuge and considers the effect of fear. The observed model has four equilibrium points where two points are unstable and other points are stable ...
• (Elfitra, 2023-11)
Enterprise architecture planning aims to plan or manage all aspects of IS/IT and business processes in an agency or company. The Riau Province Tourism Office is one of the agencies that is a factor in economic growth and ...
• (Elfitra, 2023-11)
This article discusses the optimal second derivative-free iterative method to solve nonlinear equations obtained by approximating the second derivative of the Noor- Noor-Momani method using quadratic and cubic polynomials. ...
• (Elfitra, 2023-11)
Pineapple leaf were potentially used as an alternative source of adsorbent because of high cellulose content. This research aims to determine the characteristics of pineapple leaf carbon activated using microwave irradiation ...
• (Elfitra, 2023-11)
PT. AJB, a company that operates in the transportation rental sector and a company that collaborates with companies in the mining sector. This company has also started with 9 companies. Continuity of business partners ...
• (Elfitra, 2023-11)
Seeds circulating in Indonesia are required to have seed eligibility certificates regulated by PERMENTAN No. 12 of 2018. One of the processes to obtain seed feasibility certification is the purity analysis laboratory ...
• (Elfitra, 2023-11)
PT. Suka Fajar, Pekanbaru district, has a fairly high level of sales in a year, so a sales strategy is needed for the future. Therefore, predictions are made using the Double Exponential Smoothing method, with the results ...
• (Elfitra, 2023-11)
White jabon fruit (Anthocephalus cadamba Miq.) soaked in peat water which is rich in humic acid has the potential to be used as a biosorbent to adsorb lead(II) metal based on the cellulose content of jabon fruit and the ...