Scientific Inquiry Review <p>Scientific Inquiry and Review is a peer reviewed multidisciplinary journal providing knowledge about the research updates in various fields of science that is published Quarterly. It is a source of authentic information for scientific personnel covering wide range of research aspects.</p> School of Science,University of Management & Technology, Lahore, Pakistan en-US Scientific Inquiry Review 2521-2427 Multi-Criteria Decision-Making for Airport Operation Performance Using Triangular Fuzzy Numbers <p>This paper advocates Multi-Criteria Decision-Making (MCDM) which evaluates the operation performance of airports using Fuzzy Simple Additive Weighting (FSAW) method. Assigned weights by decision- makers were in a linguistic form. These linguistic forms were converted into triangular fuzzy numbers. We chose three airports designated as A1, A2 and A3 and examined by four decision makers D1, D2, D3 and D4 under a fuzzy environment for performance against the chosen criteria. FSAW method gives similar decision results which shows that this method is effective, relevant and reliable for this kind of MCDM.</p> Adeel Ahmad Sana Akram Muhammad Farhan Tabassum Alia Kausar Nousheen Ilyas Copyright (c) 2019 Scientific Inquiry Review 2019-09-20 2019-09-20 3 3 01 15 10.32350/sir.33.01 Fuzzy Logic Controller <p>In this research paper, the impact of water pH on detergent was measured by constructing a Fuzzy Logic Controller (FLC) based on Intuitionistic Fuzzy Numbers (IFNs) by incorporating three linguistic inputs and one output as taken by Saeed. M. et al. [1]. The inference process was carried out using MATLAB fuzzy logic toolbox and the results were compared with FLC based on fuzzy numbers. The objective of the study was the comparison of FLC based on intuitionistic and fuzzy numbers. The results showed that FLC based on IFNs is approximately the same but has more precise values. So, IFNs based FLC can be used in the Instinctive Laundry System.&nbsp;</p> Muhammad Saqlain Kashaf Naz Kashf Gaffar Muhammad Naveed Jafar Copyright (c) 2019 Scientific Inquiry Review 2019-09-20 2019-09-20 3 3 16 29 10.32350/sir.33.02 Representation of Soft Set and Its Operations by Bipartite Graph <p>The idea of soft set was initiated by Molodstov. Soft sets have been used for decision making in dealing vague ideas. In this paper, soft sets are represented by bipartite graph. Operations on soft sets are also represented by bipartite graph.</p> Faiz Farid Muhammad Saeed Muzammil Ali Copyright (c) 2019 Scientific Inquiry Review 2019-09-20 2019-09-20 3 3 30 42 10.32350/sir.33.03 Two New Equilateral Triangles Associated with a Triangle <p>In this short paper, we study two new equilateral triangles associated with an arbitrary triangle and further generalizations.</p> Dasari Naga Vijay Krishna Copyright (c) 2019 Scientific Inquiry Review 2019-09-20 2019-09-20 3 3 43 54 10.32350/sir.33.04 Enhancing Concrete Properties by Adding Shred-like Steel Fibres and Steel Dust <p>In this research, fine and coarse aggregates present in the concrete were replaced with steel dust and shred-like steel fibres respectively in different ratios and the effect of their replacement on the properties of concrete was studied. Eight batches of concrete were mixed, each with the mix proportion of 1:2:4 and water- cement ratio of 0.52. Batch A was of normal concrete. In batches B, C, and D, 5%, 10%, and 15% of sand was replaced with steel dust, respectively. In batches, E, F, and G, 2%, 5%, and 8% of coarse aggregates were replaced with steel fibres. In the last batch H, 5% of sand and 5% of coarse aggregates were replaced with steel fines and steel fibres, respectively. British as well as American standards were followed during the research. Slump test was performed in the fresh state of each mix to find the effect of these replacements on its workability. 12 cubes of 150mm × 150mm × 150mm for compressive strength test and 12 cylinders of 150mm diameter and 300mm height for tensile strength test were made for each batch to check their strength after every 3, 7, 14, and 28 days. It was found that the workability of fresh concrete decreases while the density of fresh as well as hardened concrete increases with these replacements. They also result in an increase in initial compressive strength and a decrease in final compressive strength as compared to those of normal concrete. As far as tensile strength is concerned, an increase in initial as well as final strength was observed.</p> Ali Ajwad Abdullah Muhammad Usman Shakir Ahmad Usman Ilyas Abdul Waqar Akhtar Bilal Zahid Copyright (c) 2019 Scientific Inquiry Review 2019-09-20 2019-09-20 3 3 55 68 10.32350/sir.33.05