Search results for: Muhammad Qasim

Items from 1 to 20 out of 168 results

article

A generalized differential quadrature algorithm for simulating magnetohydrodynamic peristaltic flow of blood‐based nanofluid containing magnetite nanoparticles: A physiological application

Muhammad Usman Ashraf, Muhammad Qasim, Abderrahim Wakif, Muhammad Idrees Afridi, more

Numerical Methods for Partial Differential Equations > 38 > 3 > 666 - 692

In this article, the peristaltic flow of blood‐based nanofluid is examined numerically by employing the generalized differential quadrature method. The Casson constitutive model is adopted to depict the flow characteristics in a uniform wavy tube. Besides, the non‐Newtonian nature and heat transfer feature of the nanofluidic medium are also scrutinized properly in the presence of platelet magnetite...

article

Double‐diffusive flow in a porous right‐angle trapezoidal enclosure with constant heat flux

Zafar H. Khan, Waqar A. Khan, Muhammad Qasim, Min Du

Mathematical Methods in the Applied Sciences > 45 > 6 > 3305 - 3317

A computation analysis is performed to study double‐diffusive natural convection in a right‐angle trapezoidal cavity packed with a porous medium. The horizontal top and bottom boundaries are insulated and impermeable. The vertical left sidewall is kept at a constant heat flux and high concentration, whereas the inclined sidewall is held at lower temperature and concentration. The dimensionless nonlinear...

article

Ultrastructural and physicochemical characterization of pH receptive chlorhexidine‐loaded poly‐L‐glycolic acid‐modified orthodontic adhesive

Muhammad Abdullah Kamran, Abdulaziz Alshahrani, Abdullah A. Alnazeh, Samuel Ebele Udeabor, more

Microscopy Research and Technique > 85 > 3 > 996 - 1004

This study aims to evaluate the feasibility of chlorhexidine (CHX)‐loaded poly‐L‐glycolic acid (PLGA) nanoparticles as a modifier of a commercial orthodontic adhesive via the assessment of physicochemical, biological, and mechanical properties at tooth‐bracket interface. CHX‐loaded PLGA nanoparticles were synthesized using double emulsion‐solvent evaporation method and characterized using transmission...

article

Geochemical and geochronological studies of Abor volcanic rocks of eastern Himalaya

Upendra Baral, Lin Ding, Tapos Kumar Goswami, Mondip Sarma, more

Geological Journal > 57 > 2 > 482 - 502

The Indian Plate began drifting northward after the Gondwana breakup and collided with the Eurasian Plate during the Early Cenozoic, resulting in the consequential development of the Himalayan–Tibetan Orogeny. Several microcontinents were rifted from Gondwana and amalgamated with the Indian Plate, resulting in magmatism along the continental margin. The Abor volcanic rocks (AVRs) in the eastern Himalaya...

article

Natural convection in triangular fin‐shaped cavity with partially heated base using nanofluid

Zafar H. Khan, Waqar A. Khan, Ahmed M. R. Elbaz, Muhammad Qasim, more

ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für... > 101 > 12 > n/a - n/a

Computational analysis of convective heat transfer characteristics of Al₂O₃–Cu‐water hybrid nanofluid inside a triangular fin‐shaped cavity is performed. A heater of different lengths is attached to the base wall while the other walls are kept cold. The governing equations are modeled and transformed into dimensionless forms by utilizing dimensionless variables. For further investigation of the problem...

article

Influence of thiopheneyl‐based twisted backbone on the properties of α‐diimine nickel catalysts in ethylene polymerization

Daohong Liao, Shabnam Behzadi, Changwen Hong, Chen Zou, more

Applied Organometallic Chemistry > 35 > 11 > n/a - n/a

The modification of ligand sterics has become a prevalent strategy to tune the properties of α‐diimine‐type nickel catalysts. The majority of the works in this field focus on the modifications of the aniline moiety. In this contribution, we decide to explore the influence of backbone structures. Specifically, nickel complexes bearing 2,5‐dimethyl‐thien‐3‐yl and 2‐methyl‐5‐phenylthien‐3‐yl backbone...

article

Comparative palynology and taxonomic implication of Jasminum L. (Oleaceae) species from Pakistan on the bases of scanning electron microscopy

Naeem Akhtar, Muhammad Qasim Hayat, Ishfaq Ahmed Hafiz, Nadeem Akhtar Abbasi, more

Microscopy Research and Technique > 84 > 10 > 2325 - 2336

Jasminum L. is the largest genus containing ~200 species found wild mostly in the tropical regions of the world. The comparative palynological study of nine Pakistani Jasminum species with SEM showed zonocolpus, trilobate, and tricolpus pollen types with simple endocolpus apertures which are plesiomorphic and conserved in the Jasminum species. The equatorial pollen view was prolate, subprolate, and...

article

Integrated provenance and tectonic implications of the Cretaceous–Palaeocene clastic sequence, Changla Gali, Lesser Himalaya, Pakistan

Muhammad Qasim, Jalil Ahmad, Lin Ding, Javed Iqbal Tanoli, more

Geological Journal > 56 > 9 > 4747 - 4759

This study documented the field relationship and integrated provenance of a clastic sequence exposed at the Mesozoic–Cenozoic boundary located in Changla Gali section, Lesser Himalaya, Pakistan, to provide an insight into Cretaceous tectonics of the northern Indian margin. This boundary sequence is represented by the Early Palaeocene Hangu Formation, which consists of shales in the lower part and...

article

Validation of ROS1 by immunohistochemistry against fluorescent in situ hybridisation on cytology and small biopsy samples in a large teaching hospital

Nadira Narine, Andrew Wallace, Jonathan Dore, Simon O’Leary‐Jackson, more

Cytopathology > 32 > 5 > 621 - 630

Objective Rearranged ROS1, present in 1%‐2% of non‐small cell lung cancer (NSCLC) patients, usually young, never or light smokers, is assessed by fluorescence in situ hybridization (FISH) to determine eligibility for tyrosine kinase inhibitors (TKI). Immunohistochemistry (IHC) for the protein product of ROS1 rearrangement, a cost‐effective alternative, is validated on cytology and small biopsy samples...

article

A framework infrageneric classification of Carex (Cyperaceae) and its organizing principles

Group, Eric H. Roalson, Pedro Jiménez‐Mejías, Andrew L. Hipp, more

Journal of Systematics and Evolution > 59 > 4 > 726 - 762

Phylogenetic studies of Carex L. (Cyperaceae) have consistently demonstrated that most subgenera and sections are para‐ or polyphyletic. Yet, taxonomists continue to use subgenera and sections in Carex classification. Why? The Global Carex Group (GCG) here takes the position that the historical and continued use of subgenera and sections serves to (i) organize our understanding of lineages in Carex...

article

Prevalence and associated risk factors of Shigella flexneri isolated from drinking water and retail raw foods in Peshawar, Pakistan

Iqbal Nisa, Muhammad Qasim, Arnold Driessen, Jeroen Nijland, more

Journal of Food Science > 86 > 6 > 2579 - 2589

Abstract This study was designed to investigate the prevalence and associated risk factors of Shigella flexneri isolated from drinking water and retail raw food samples in Peshawar, Pakistan. A total of 1,020 different samples were collected from various areas of Peshawar between January 2016 and May 2017, followed by identification of S. flexneri through biochemical, serological, and 16S rRNA gene...

article

Preparation of Metal Oxide‐based Oxygen Carriers Supported with CeO₂ and γ‐Al₂O₃ for Chemical Looping Combustion

Muhammad Qasim, Muhammad Ayoub, Aqsha Aqsha, Muhammad Zulfiqar

Chemical Engineering & Technology > 44 > 4 > 782 - 787

The development of efficient oxygen carriers (OCs) in chemical looping combustion (CLC) exhibited tremendous achievement considering inherent CO₂ capture. The selectivity of CO₂ in the CLC process depends on the performance of employed OCs during multiple redox cycles. Different types of OCs were prepared, including 5wt%Ni/5wt%Ce/γ‐Al₂O₃, 5wt%La/5wt%Ce/γ‐Al₂O₃, and 5wt%Pr/5wt%Ce/γ‐Al₂O₃, using the...

article

Automated design for recognition of blood cells diseases from hematopathology using classical features selection and ELM

Muhammad Attique Khan, Muhammad Qasim, Hafiz Muhammad Junaid Lodhi, Muhammad Nazir, more

Microscopy Research and Technique > 84 > 2 > 202 - 216

In the human immune system, the white blood cells (WBC) creates bone and lymphoid masses. These cells defend the human body toward several infections, such as fungi and bacteria. The popular WBC types are Eosinophils, Lymphocytes, Neutrophils, and Monocytes, which are manually diagnosis by the experts. The manual diagnosis process is complicated and time‐consuming; therefore, an automated system is...

article

Stimuli‐Responsive Dynamic Metaholographic Displays with Designer Liquid Crystal Modulators

Inki Kim, Muhammad Afnan Ansari, Muhammad Qasim Mehmood, Won‐Sik Kim, more

Advanced Materials > 32 > 50 > n/a - n/a

Flat optics, realized by the artificially created 2D material platform called optical metasurfaces, is currently undergoing a science‐to‐technology transition. However, “real‐time” active operations of such flat optical devices remain yet unresolved. Here, liquid crystals (LCs)‐integrated metaholograms for ultracompact dynamic holographic displays are proposed. The anisotropic nature of the LCs allows...

article

Meta‐Holographic Displays: Stimuli‐Responsive Dynamic Metaholographic Displays with Designer Liquid Crystal Modulators (Adv. Mater. 50/2020)

Inki Kim, Muhammad Afnan Ansari, Muhammad Qasim Mehmood, Won‐Sik Kim, more

Advanced Materials > 32 > 50 > n/a - n/a

A touch‐responsive meta‐holographic display, which is promising for interactive holographic displays with touch sensing or motion recognition is presented by Young‐Ki Kim, Junsuk Rho, and co‐workers in article number 2004664. According to an applied surface pressure with a gentle finger touch, the floating holographic images encoded in a metasurface can be switched in real‐time. The liquid‐crystal‐integrated...

article

Application of Perov type fixed point results to complex partial differential equations

Ishak Altun, Muhammad Qasim

Mathematical Methods in the Applied Sciences > 44 > 2 > 2059 - 2070

In this paper, we characterize a new generalization of Perov fixed point result via Λ‐admissibility and Ψ‐contractivity on vector‐valued metric space and provide a comparative example. Then we investigate the existence of solution of a complex partial differential equation of the form, via obtained new fixed point results under suitable conditions.

article

Fabrication of polycaprolactone nanofibrous membrane‐embedded microfluidic device for water filtration

Muhammad Qasim, Duong Duy Duong, Ji Yi Lee, Nae Yoon Lee

Journal of Applied Polymer Science > 137 > 40 > n/a - n/a

In this study, we fabricated a plastic microfluidic device embedded with polycaprolactone (PCL) nanofibrous membrane for use as a filter for the removal of bacteria from contaminated water. A microfluidic device was fabricated by sandwiching an electrospun PCL nanofibrous membrane between two layers of poly(methyl methacrylate) (PMMA) substrates. On the top PMMA layer, a serpentine microchannel was...

article

Early Cretaceous to Eocene magmatic records in Ladakh arc: Constraints from U–Pb ages of Deosai volcanics, northern Pakistan

Umair Khan Jadoon, Lin Ding, Upendra Baral, Muhammad Qasim

Geological Journal > 55 > 7 > 5384 - 5397

This research provides a detailed U–Pb geochronological record of Deosai volcanics in the western Himalaya. The volcanics comprise basalt, andesite, dacite, and rhyolite and are part of the Kohistan–Ladakh arc, exposed east of the Nanga Parbat–Haramosh Massif. Based on the U–Pb ages, this volcanic suite is classified into three chronostratigraphic units: (a) Chota Pani volcanics, (b) Shatung Nala...

article

Does financial availability sustain financial, innovative, and environmental performance? Relation via opportunity recognition

Aasma Memon, Zhang Yong An, Muhammad Qasim Memon

Corporate Social Responsibility and Environmental Management > 27 > 2 > 562 - 575

Traditionally, firms tend to incline toward financial performance and profitability to surge shareholder's wealth. In the modern day, in addition to financial performance, innovative and environmental performance has also become a central effort. However, all firms are not flourished in the achievement of financial, innovative, and environmental performance, particularly small‐ and medium‐sized enterprises...

article

Ultrasound-assisted forward osmosis desalination using inorganic draw solutes

Muhammad Qasim, Faisal W. Khudhur, Ahmed Aidan, Naif A. Darwish

Ultrasonics Sonochemistry > 2020 > 61 > C

Internal concentration polarization (ICP) represents a serious challenge in forward osmosis (FO) desalination since it causes a significant decline in the water flux across the membrane. Mitigation of ICP is cumbersome since the phenomenon occurs within the membrane porous support layer and mitigation procedures such as inducing turbulence or changing the hydrodynamic conditions tend to be ineffective...

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INFONA - science communication portal

Search results for: Muhammad Qasim

A generalized differential quadrature algorithm for simulating magnetohydrodynamic peristaltic flow of blood‐based nanofluid containing magnetite nanoparticles: A physiological application

Double‐diffusive flow in a porous right‐angle trapezoidal enclosure with constant heat flux

Ultrastructural and physicochemical characterization of pH receptive chlorhexidine‐loaded poly‐L‐glycolic acid‐modified orthodontic adhesive

Geochemical and geochronological studies of Abor volcanic rocks of eastern Himalaya

Natural convection in triangular fin‐shaped cavity with partially heated base using nanofluid

Influence of thiopheneyl‐based twisted backbone on the properties of α‐diimine nickel catalysts in ethylene polymerization

Comparative palynology and taxonomic implication of Jasminum L. (Oleaceae) species from Pakistan on the bases of scanning electron microscopy

Integrated provenance and tectonic implications of the Cretaceous–Palaeocene clastic sequence, Changla Gali, Lesser Himalaya, Pakistan

Validation of ROS1 by immunohistochemistry against fluorescent in situ hybridisation on cytology and small biopsy samples in a large teaching hospital

A framework infrageneric classification of Carex (Cyperaceae) and its organizing principles

Prevalence and associated risk factors of Shigella flexneri isolated from drinking water and retail raw foods in Peshawar, Pakistan

Preparation of Metal Oxide‐based Oxygen Carriers Supported with CeO₂ and γ‐Al₂O₃ for Chemical Looping Combustion

Automated design for recognition of blood cells diseases from hematopathology using classical features selection and ELM

Stimuli‐Responsive Dynamic Metaholographic Displays with Designer Liquid Crystal Modulators

Meta‐Holographic Displays: Stimuli‐Responsive Dynamic Metaholographic Displays with Designer Liquid Crystal Modulators (Adv. Mater. 50/2020)

Application of Perov type fixed point results to complex partial differential equations

Fabrication of polycaprolactone nanofibrous membrane‐embedded microfluidic device for water filtration

Early Cretaceous to Eocene magmatic records in Ladakh arc: Constraints from U–Pb ages of Deosai volcanics, northern Pakistan

Does financial availability sustain financial, innovative, and environmental performance? Relation via opportunity recognition

Ultrasound-assisted forward osmosis desalination using inorganic draw solutes

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