International Journals of Multidisciplinary
Research Academy (IJMRA)

Abstract:
Enhancement of heat transfer in solar air heater (SAH) by employingthe artificial roughness inabsorber plate and increasing heat discharge duration by assimilating phase change material (PCM)–paraffin wax were experimentally investigated. A study focused to raise the heat transfer rate at peak radiation and extending heat discharge duration from PCM in OFF sun radiation.The researchis done in two different types of absorber plates positioned in SAH (Type-I - Flat plate) and (Type-II Circular rib in plate) with and without PCM in SAH. Instantaneous thermal efficiency and hourly heat distribution parameters are taken to analyze the augmentation of heat transfer in charging and discharging. The result reveals that Type-II circular rib plate produces higher heat transfer than Type-I due to turbulence in fluid flow and heat discharge duration extend up to 8 pm Indian Standard Time (IST)at nominal temperature
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Abstract:
In this article we presented a concept of an eigenvalues on Riemannian manifolds, we estimated a value of aconstant 𝑐𝑚 [ 𝑔 ] that Korevaar [3 ], used it to estimated a value of 𝜆𝑘 𝑀, 𝑔 . We proved theorems 4 and 5 by theorem 2.1 of [1] and we applyed this theorem to the Steklov eigenvalue problem.
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Abstract:
Electrical circuits can be studied and simplified by using many well known theorems of Electrical Engineering. An electrical circuit can be represented by graph also. The circuit diagram can be converted to different matrices by using specific definitions. There are many matrix equilibrium equations which can be obtained from different laws of electrical circuits. The results of these equations can be verified by the existing theorems and graph theory. Some difficult problems become interesting and also look simple when represented using a graph. Graph theory is useful and powerful technique for solving real-world problems as it gives different kinds of optimization. It seems to be laborious to use the existing and traditional methods to find branch currents and loop currents of electrical circuits if it contains many branches. Using mathematical model this difficulty can be solved. In our previous paper we analysed currents in a circuit with all known resistances and voltages. In this paper, branch currents of an electrical circuit with unknown resistances and voltage are obtained using network equilibrium equations and then it will be verified by Thevenin’s theorem
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Abstract:
Now a days, in India having open first story in urban multi-storey building as an unusual feature. Primarily this space is adopted for parking purpose or used for reception lobbies in first storey, at the time of earthquake total seismic base shear is experienced by a building depend on its natural period, this seismic force distribution of building is dependent on the distribution of mass and stiffness along the height of building. In India there are many places where floating columns are used above the ground floor of building. In that structure some special girder are used like I- girder, etc. this girder transfer the load easily to the ground and there are more space available for parking purpose or for large hall purpose in ground floor. In earthquake zone the girders are designed with care and according to condition. In this beam load of floating column is act as a point load or concentrated load. In this analysis the floating column is pinned; so structure made monolithic structure. In this study we are analyzing a regular and irregular structure considering seismic zone II and V, soil type soft and Hard using analysis tool staad.pro. to determine the variation in structures in terms of forces, displacement and drift.
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Abstract:
Every research and analysis begins with a thorough review of the facts and data available. To reflect the project’s position in the city, we used basic documentation that included references to the urban environment. Pictures and plans, sections, and details from both eras of the structure’s existence have been included in the study of the structure’s history. Virtual models for each case study were also created.
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Abstract:
The best anthropometric measurements of obesity to use to predict the risk of cardiovascular disease (CVD) are either the general or central measures. The ability of obesity measures to diagnose those who are more likely to be above the treatment threshold has been studied. Each anthropometric parameter's connected increase in CVD risk above the mean was evaluated.The prediction of future cardiovascular disease events frequently uses risk functions. The anthropometric measures of patients do not, however, account for obesity or overweight, which are now understood to be vitalheart health issues.In order to identify persons with elevated absolute cardiovascular risk estimations in clinical practise, the study sought to determine the best acceptable anthropometric index to employ as an auxiliary measure.MethodsPatients who had their first cardiac event were selected to participate in this study.
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Abstract:
The goal of the present work is to analyze the disturbances in an isotropic, homogeneous, nonlocal half-space subjected to a mechanical load. The formulation is done in the frame of modified Green-Lindsay theory of generalized thermoelasticity with two-temperature. The normal mode method is adopted to obtain the exact expressions for the displacement components, stresses and temperature in the physical domain. Numerical results are evaluated and depicted graphically with the help of MATLAB software. Comparisons of the physical quantities are made to show the effects of nonlocal and time.
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