What is the physical mechanism by which space contracts due to motion? Theory of relativity is reluctant to answer this question. The reason is that this physical mechanism threatens the principle of relativity. The side effects of theoretical mathematical form system have not be...
Open access
Research Article10.9734/psij/2021/v25i1130291
This paper presents a numerical study of the air-conditioning of a room by a two-phase thermosyphon loop using meteorological data from the Mamou region (Guinea). The room is composed of a rectangular roof and a passenger compartment in the form of a parallelepiped. In addition,...
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Research Article10.9734/psij/2021/v25i1130289
The geometry of curved ‘three-dimensional’ absolute intrinsic metric space (an absolute intrinsic Riemannian metric space) \(\varnothing\hat{\mathbb{M}}^3\), which is curved (as a curved hyper-surface) toward the absolute time/absolute intrinsic time ‘dimensions’ (along the verti...
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Research Article10.9734/psij/2021/v25i1030287
Jacques Nébié, Sidiki Zongo, Augustin S. Zongo, Guy C. Tubreoumya, Zacharie S. Kam, Serge W. Igo, Tizane Daho, Ilyassé Konkobo, Antoine Béré & Belkacem Zeghmati·Physical Science International Journal·2021
The present work reports the thermal performance of a box-type solar cooker insulated with kapok wool, a local plant with a low thermal conductivity. The experimental results obtained indicate that the absorber plate reached a maximum temperature of 155.2 °C. Moreover, the maximu...
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Research Article10.9734/psij/2021/v25i1030286
Boureima Kaboré, Germain Wende Pouiré Ouedraogo, Moctar Ousmane, Vincent Zoma, Belkacem Zeghmati, Xavier Chesneau, Sié Kam & Dieudonné Joseph Bathiebo·Physical Science International Journal·2021
In the Sahelian zone, air cooling in house by air-soil heat exchanger is an alternative in the context of insufficient of electrical energy. This work is about cooling of a habitat in Ouagadougou by numerical approach. Numerical results provided a better understanding of the infl...
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Research Article10.9734/psij/2021/v25i1030285
This work is a contribution of a modelling of air conditioner by adsorption for a habitat in a tropical climate. The system mainly consists of a captor adsorber powered by a geothermal pump, a condenser and an evaporator. We use the zeolite/methanol couple and the different thres...
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Research Article10.9734/psij/2021/v25i930283
Two classes of three-dimensional metric spaces are identified. They are the conventional three-dimensional metric space and a new ‘three-dimensional’ absolute intrinsic metric space. Whereas an initial flat conventional proper metric space IE′3 can transform into a curved three-d...
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Research Article10.9734/psij/2021/v25i1030284
In this paper, using a suitable change of variable and applying the Adomian decomposition method to the generalized nonlinear Schr¨odinger equation, we obtain the analytical solution, taking into account the parameters such as the self-steepening factor, the second-order dispersi...
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Research Article10.9734/psij/2021/v25i930282
Loop Quantum Gravity is a theory that attempts to describe the quantum mechanics of the gravitational field based on the canonical quantization of General Relativity. According to Loop Quantum Gravity, in a gravitational field, geometric quantities such as area and volume are qua...
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Research Article10.9734/psij/2021/v25i930279
In this work, the pulse propagation in a nonlinear dispersive optical medium is numerically investigated. The finite difference time-domain scheme of third order and periodic boundary conditions are used to solve generalized nonlinear Schr¨odinger equation governing the propagati...
Open access
Research Article10.9734/psij/2021/v25i930280
We show here that entropic information is capable of unifying all aspects of the universe at all scales in a coherent and global theoretical mathematical framework materialized by entropic information framework, theory and formulas, where dark matter, dark energy and gravity are...
Open access
Research Article10.9734/psij/2021/v25i930281
Taking into account the interaction between the engine oil and the crankshaft to model crankshaft thermomechanical behavior under dynamic loading is very important. In particular, when the crankshaft is working in severe conditions. This paper deal with an air cooled direct injec...
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Research Article10.9734/psij/2021/v25i830278
For long time the nature of spacetime had been the subject of debate, here another version will be discussed in the form of space and time fields where a new concept of energy constraining can explain the interactions between those fields. This model comes in three parts: energy...
Open access
Research Article10.9734/psij/2021/v25i830277
The main objective of this work is to find a material that attenuates heat transfer and provides an acceptable indoor environment in the habitat of countries with a hot and dry climate like Burkina Faso. The absence of thermal regulations in Burkina Faso leads to the development...
Open access
Research Article10.9734/psij/2021/v25i830275