Rafiq Islam - Academia.edu (original) (raw)

Papers by Rafiq Islam

Applied Mathematics and Computation, 2003

... and non-linear systems of Volterra integral equations of the second kind [2 and 3]. Following... more ... and non-linear systems of Volterra integral equations of the second kind [2 and 3]. Following them we are using the Adomian decomposition method to solve systems of Volterra integral equations of the first kind [4]. A system of integral equation of the first kind can be presented ...

The International Journal of Political Theory is currently accepting submissions for its 2017 Feb... more The International Journal of Political Theory is currently accepting submissions for its 2017 February issue, Volume 1, Issue 2, by the deadline of January 1st 2017. See our scope and published subjects and themes on our home page. All submissions undergo a double-blind peer-review process that can take several weeks. The IJPT is an open-access political theory journal and is available without cost online. Articles are indexed and advertised on major search engines based upon provided keywords for the submissions. The editorial board asks that prospective authors list recommended reviewers (although their use is not guaranteed), and discuss the importance of the article in the contemporary world. Most importantly, the journal is looking for works that highlight the uniqueness and provocativeness of the new argument made in the work. Papers should be sent to the Editor: IJPT@Emertec.ca.

Communications in Soil Science and Plant Analysis

Journal of Petroleum Science and Engineering, 2002

An elasto-plastic, fully coupled fluid flow and deformation finite element model is proposed for ... more An elasto-plastic, fully coupled fluid flow and deformation finite element model is proposed for modeling both tensile and shear-induced failure around deep wellbores in oil and gas reservoirs. The problem is of significant interest to the industry as the usual filter measures undertaken (e.g., liners and gravel packs) to prevent solids production (tensile failure) are not only very expensive but

International Journal of Petrochemistry and Research, 2017

Reconstituting the Curriculum, 2013

This chapter contains sections titled: Introduction The HSS®A® (Honey Sugar Saccharin® Aspartame®... more This chapter contains sections titled: Introduction The HSS®A® (Honey Sugar Saccharin® Aspartame®) Pathway IntroductionThe HSS®A® (Honey Sugar Saccharin® Aspartame®) Pathway

The currently used humanity model is chaotic, devoid of logic or coherence. In Part 1 of this two... more The currently used humanity model is chaotic, devoid of logic or coherence. In Part 1 of this two-part paper, we examined human traits of a scientific model in absence of ‘born sinner’ starting point. We demonstrated that the so-called ‘viceroy model’ that is characterized as scientifically sustainable can replace the existing models that are based on fear and scarcity. Part Two of the paper deals with adequate definition of moral campus that conforms to the viceroy model. In this paper, it is shown that the talk of morality or a moral compass is aphenomenal in absence of strict necessary and sufficient conditions. It also follows that natural justice can only be followed after defining the term ‘natural’ with the same scientific rigor as that of the viceroy model. Once these terms are consistently defined, one is well poised to talk about inalienable rights, moral compass, environmental sustainability, and humanity. The immediate consequence of this model is the demonstration that ...

Journal of Industrial and Environmental Chemistry, 2019

SPE Annual Technical Conference and Exhibition, 2000

Proceedings of SPE/DOE Symposium on Improved Oil Recovery, 2004

Currently, fluid flow in porous media is mostly calculated by utilizing the well known diffusivit... more Currently, fluid flow in porous media is mostly calculated by utilizing the well known diffusivity equation based on Darcy&#39;s law. This diffusivity equation is the core fluid flow equation in all modern reservoir simulators used to predict flow behaviors. Inaccurate predictions of reservoir simulators have been reported nevertheless, history matching has been achieved. This dilemma led to questioning the adequacy of the basic governing equation of fluid flow behavior in porous media. This paper suggesting a new governing equation that includes Darcy&#39;s viscous term, Forchheimer&#39;s inertial term and Brinkman&#39;s viscous term all in one model called the Modified Brinkman Model &quot;MBM&quot;. MBM proven to accurately describe fluid flow in porous media in both Darcian and non-Darcian domains and can be used in both oil and gas reservoirs for both matrix and fracture systems. A genuine mathematical solution &quot;Adomian decomposition technique&quot; has been successfully employed to solve the partial differential model with great deal of accuracy and ease. The proposed MBM is expected to have wide applications in oil, gas and underground water reservoirs. Introduction To date, the diffusivity equation derived from the famous Darcy law1 is in use to describe fluid flow in porous media. Darcy&#39;s basic assumption at the time he introduced his equation is that the compressibility of both flowing fluid and the media are constant with low spatial velocity flow. Despite the wide spread and the modifications introduced to Darcy&#39;s empirical equation to suite different flow schemes, this equation has been debated for over one and a half century. In 1901, Forchheimer2 depicted that flow in porous media is not always traveling at low velocity; he argued that Darcy&#39;s model cannot describe such cases and added another inertial term to Darcy&#39;s viscous term to correct that deficiency. Brinkman3 disagreed with Forchheimer&#39;s modification and instead he added another viscous term to Darcy&#39;s model. Others observed the inadequacy of Darcy&#39;s model and they suggested that turbulence flow is taking place in porous media at high velocity flow causing deviation from the Darcian linear behavior. They determined that Forchheimer flow resistance and dispersion, which they believe it takes place at high Reynolds number, can be interpreted by using the concept of laminar flow theory4–9. Vafai and Tien4 considered the Forchheimer flow resistance as an inertial effect of flow offered through the solid matrix &quot;from drag&quot;. In addition to these speculations there are many experimental studies10–16 in which the deviation from Darcy&#39;s linear trend is observed at about Re=10 and not only the effect of Forchheimer flow resistance, but also the effect of the dispersion, gradually become predominant as the Reynolds number become higher. At high porosity porous media, Lee and Howell17 introduced another model that considers the same eddy viscosity for porous media as one which is commonly used for pure fluid. Travkin et al.18 developed a model for high porosity media along with a statistical and numerical methodology. On the other hand, the argument that punched holes in the essence of adapting turbulence flow phenomena in porous media is the problematic determination of Reynolds number caused by lack of suitable definition to the length parameter. In addition, recent studies19 revealed that even if we consider the length parameter as the media length, diameter or the square-root of the permeability, Reynolds number proven to fluctuate rather than taking a definite value at the point of deviation from Darcy&#39;s trend. Also, the deviation from the linear to the non-linear behavior in porous media is gradual unlike the sharp change from laminar to turbulence flow in the case of fluid flow in conduits. It has been believed that the main cause of deviation from the Darcian behavior is related to other factors different than those contributed to turbulence behavior takes place in flow between two plates or in a pipe. Judging from above, it seems reasonable to assume that non-Darcy flow is occurring at high spatial velocity in porous media as a consequent to a number of factors rather than attributing this behavior to &quot;turbulence&quot; phenomena.

Energy Sources, 2005

Abstract Disinfection with solar energy has been in practice for centuries. This article uses thi... more Abstract Disinfection with solar energy has been in practice for centuries. This article uses this old technology and builds on some of its unique features in order to develop an effective method of bioremediation. Recently, a strain of thermophilic bacteria was isolated from the ...

Energy Sources, 1999

Several strains of thermophilic bacteria were isolated from the environment of the United Arab Em... more Several strains of thermophilic bacteria were isolated from the environment of the United Arab Emirates. These bacteria show extraordinary resistance to heat and have their maximum growth rate around 60 80 C. This article investigates the potential of using these facultative ...

Chemical Engineering Communications, 2006

Removal of lead and cobalt cations from both industrial and municipal water is of extreme importa... more Removal of lead and cobalt cations from both industrial and municipal water is of extreme importance for waste water disposal standards. Using fish scales as an adsorbent, 95% of the lead cations and 70% of the cobalt ions can be removed. The processes related to the removal of the cations include adsorption and precipitation. The effect of precipitation of the

No USA president in history has received as much opposition as Donald Trump has from all three co... more No USA president in history has received as much opposition as Donald Trump has from all three components of the Establishment, namely the financial establishment, the political establishment and the corporate media establishment. The election of Donald Trump to the office of presidency is marked with dozens of historical first events that are anything but lackluster, yet a bleak picture of Fascism has been painted to describe Trump. This is an extraordinary piece of disinformation, as no modern president has been more consistent in plainly saying what he will do regarding US military and geopolitical goals, both outside and in office. This, even though his stated position is clearly opposite to the wishes of the dominant cabal, supported by both parties, and to US foreign policy since WWII. USA history is not very long, but Trump presidency and his inaugural speech marked a historic starting point for this 'democracy'. Every sentence of Donald J. Trump's inaugural speec...

Petroleum resources continue to dominate the energy sectors with no sign of a decline. Petroleum ... more Petroleum resources continue to dominate the energy sectors with no sign of a decline. Petroleum reserves, however, are dwindling in view of fewer new discoveries and increased production level. It is important to determine petroleum reserves accurately in order to correctly forecast energy budget in the future. The most commonly used methods to describe the fluid flow in oil reservoirs employ constant rock properties. However, these methods are not applicable to reservoirs that undergo changes in the rock properties due to variation in pore pressure. Common characteristics of fractured reservoirs are sensitivity of permeability and porosity to effective stress. The in-situ stress, in itself, can be of mechanical or thermal origin. The thermal stress can be significant in thermal enhanced oil recovery schemes such as injection of cold fluid in hot formation during water flooding or wastewater disposal, or even during hydraulic fracturing. Unfortunately, the most commonly literature ...

The currently used humanity model is chaotic, devoid of logic or coherence. In Part 1 of this two... more The currently used humanity model is chaotic, devoid of logic or coherence. In Part 1 of this two-part paper, we examined human traits of a scientific model in absence of 'born sinner' starting point. We demonstrated that the so-called 'viceroy model' that is characterized as scientifically sustainable can replace the existing models that are based on fear and scarcity. Part Two of the paper deals with adequate definition of moral campus that conforms to the viceroy model. In this paper, it is shown that the talk of morality or a moral compass is aphenomenal in absence of strict necessary and sufficient conditions. It also follows that natural justice can only be followed after defining the term 'natural' with the same scientific rigor as that of the viceroy model. Once these terms are consistently defined, one is well poised to talk about inalienable rights, moral compass, environmental sustainability, and humanity. The immediate consequence of this model is...

Applied Mathematics and Computation, 2003

Communications in Soil Science and Plant Analysis

Journal of Petroleum Science and Engineering, 2002

International Journal of Petrochemistry and Research, 2017

Reconstituting the Curriculum, 2013

Journal of Industrial and Environmental Chemistry, 2019

SPE Annual Technical Conference and Exhibition, 2000

Proceedings of SPE/DOE Symposium on Improved Oil Recovery, 2004

Energy Sources, 2005

Energy Sources, 1999

Chemical Engineering Communications, 2006

The currently used humanity model is chaotic, devoid of logic or coherence. In Part 1 of this two... more The currently used humanity model is chaotic, devoid of logic or coherence. In Part 1 of this two-part paper, we examined human traits of a scientific model in absence of 'born sinner' starting point. We demonstrated that the so-called 'viceroy model' that is characterized as scientifically sustainable can replace the existing models that are based on fear and scarcity. Part Two of the paper deals with adequate definition of moral campus that conforms to the viceroy model. In this paper, it is shown that the talk of morality or a moral compass is aphenomenal in absence of strict necessary and sufficient conditions. It also follows that natural justice can only be followed after defining the term 'natural' with the same scientific rigor as that of the viceroy model. Once these terms are consistently defined, one is well poised to talk about inalienable rights, moral compass, environmental sustainability, and humanity. The immediate consequence of this model is...

Information age marks revolutionary changes in all aspects, but most notably in the domain of nan... more Information age marks revolutionary changes in all aspects, but most notably in the domain of nanotechnology. The technological revolution involves nanomaterials, engineered or otherwise, that have great mechanical stability, high thermal conductivity, large current carrying ability, and tremendous flexibility in terms of compatibility with other materials. Unfortunately, much of the excitement about nanotechnologies has been diminished due to the fact that most of these technological products are inherently toxic to the environment. As such, they are unsustainable. In this paper, the origins of unsustainability in selected technologies are revealed through sustainability analysis based on a comprehensive criterion. A newly developed scientific theory, which is free from paradoxical assumptions of the currently used theories, is used to construct a guideline for sustainable material development. An array of novel materials for a wide range of applications is proposed. Sustainability analysis of these materials is performed. It is shown that these materials are technologically more effective than their conventional counterparts. In terms of environmental sustainability, they are shown to be inherently beneficial to the environment. As a consequence, the engineering problem becomes that of maximizing value addition instead of minimizing waste. This material conversion instead of waste disposal opens up the prospect of zero waste engineering. With this double dividend, products of nanotechnology satisfy simultaneously all economical and environmental constraints, thus removing century old misconception that environmental sustainability must come with an economic cost.