Volume 2, Issue 10, 2021

1. Nilpotent Adjacency Matrix of Graph of Fuzzy Topographic Topological Mapping


Fuzzy Topographic Topological Mapping (FTTM) is a novel mathematical model to determine the location of epileptic foci in epilepsy disorder patient. This model is composed into three mathematical algorithms using topological and fuzzy structures of recorded magnetic fields produced by electrical activity in the brain of people who suffer from epilepsy disorder. Later, new structure of FTTM; i.e. Graph of FTTM is established. In this paper, we will define the nilpotent adjacency matrix of fuzzy topographic topological mapping graph. Furthermore, the role and importance of the nilpotent adjacency matrix of FTTM graph is highlighted.

Keywords: Graph of Fuzzy topographic topological mapping; Adjacency matrix.

2. Effect of Molarity and Alkalin Liquid on Mechanical Properties of Geopolymer Mortar


The enhancement of cement alternatives in the industry of construction is one of the vital components for sustainable development. Geopolymerization can be defined as one of the new strategies that provide imaginative arrangements, and the existence of aluminum and silicon oxides in MK had supported its use as one of the source materials in the Geo-polymer, which might be utilized in a wide range of the applications.

The presented study provides experimental study for producing geo-polymer mortar and examines metakaoline geo-polymer mortar that has been reinforced by polypropylene fibers . In this study, an experimental investigation is conducted to study the mechanical and physical properties of metakaoline geo-polymer mortar that are made from base material available in the local market. The tests were made in this study workability test, compression test, tensile strength, non-destructive test (N.D. T) (dry density and apparent porosity).Sample is prepared with four different molarity(8M,10M,12M,14M) and Na2SiO3/NaOH ratio (2,2.5) and curing in the furnace at 70°C for three hours and then its curing under sunlight for 28 days.

Mortar, cement, and concrete blends have been considered to be fragile substances, which have been more grounded concerning the compression, whereas they have been weaker concerning the tension and flexure; therefore, we used polypropylene fibers (PF) in all mixtures.

Keywords:: Geo-polymer,Mortar,Molarity,Alkaline liquid,Compressive strength.

3. Optimization of diesel degrading bacteria for Biodegaradation of diesel oil using bacteria isolated from contaminated area


Petroleum products are complex combinations of organic compounds such as aromatic polycyclic hydrocarbons, complex branched aliphatic and cyclic alkanes as well as other residual substances. Some of these are termed recalcitrant because they do no degrade easily in nature despite being organic. They are mainly from anthropogenic sources and have become persistent pollutants. Biodegradation of diesel requires a diesel-tolerant microbe to reduce degradation time. Among the bacterial isolates (YSU01, YSU02, YSU03 and YSU04), YSU01 isolate was the potent degraders of diesel oil. The strain was observed to be maximum diesel oil utilizing ability. The strain showed optimal growth at 37oC with pH 7, was also able to show high degradation with 3% diesel oil and agitation of 150 rpm and time period (5days). The results revealed the possibility to use these strain for the reduction of complex hydrocarbon in ecosystems where they accumulate and cause contamination

Keywords: Optimization, Characterization and Diesel oil

4. Investigate Numerically the Distribution of Air Characteristics inside a Room with Different Locations of an Air Condition Unit


The main goal of present study is to investigate air charactristics such as variation in temperature, pressure and air stream velocity distribution inside a room. The air condition unit is illustrated at different locations. Computational fluid dynamics simulating forced draft air conditioner in the current study. A room was used and considered to use ANSYS Fluent. Four cases of study air conditioning room are taken in to consideration case one an aircondition unit installed on the longer side of the room 3m above the floor, in the case two air conditioniner located parallel to eachother on the longer side of the room, in the case three an air conditioner placed on the shorter side of the room, in the last case which was case four of study two aircondition units was located on the shorter side of the room. Amonge all the cases, finally made evaluation showed that case four provide best result regarding temperature, pressure, air streamline velocity and heat transfer coefficient.

Keywords: Air-conditioning Distributions, Thermal Comfort , CFD Analysis.