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Dynamics of Particles Around a Regular Black Hole with Nonlinear Electrodynamics

Jawad, Abdul; Ali, Farhad; Jamil, Mubasher (2016-01-01)

We investigate the dynamics of a charged particle being kicked off from its circular orbit around a regular black hole by an incoming massive particle in the presence of magnetic field. The resulting escape velocity, escape ...

Radiation-Induced Nano-Explosions at the Solid Surface: Near Surface Radiation Damage in CR-39 Polymer

Rana, Mukhtar Ahmed (Chinese Physical Society and IOP Publishing Ltd, 2011-01-01)

New measurements of fission fragment and alpha particle induced surface damage in the most sensitive and commonly used nuclear track detector CR-39 are presented here. Precisely designed and optimized exposure and chemical ...

Nitriding molybdenum: Effects of duration and fill gas pressure when using 100-Hz pulse DC discharge technique

Ikhlaq, U.; Ahmad, R.; Shafiq, M.; Saleem, S.; Shah, M. S.; Hussain, T. (Chinese Physical Society and IOP Publishing Ltd, 2014-08-20)

Molybdenum is nitrided by a 100-Hz pulsed DC glow discharge technique for various time durations and fill gas pressures to study the effects on the surface properties of molybdenum. X-ray diffractometry (XRD), scanning ...

A Variant of the Classical Von Kármán Flow for a Couple Stress Fluid

Farooq, A. A.; Siddiqui, A. M.; Rana, M. A.; Haroon, T. (Chinese Physics Letters, 2012-01)

We present an attempt to study the influence of couple stresses on the flow induced by an infinite disk rotating with a constant angular velocity. The governing equations of motion in three dimensions are treated analytically ...

Adaptive step-size modified fractional least mean square algorithm for chaotic time series prediction

Shoaib, Bilal; Qureshi, Ijaz Mansoor; Shafqatullah; Ihsanulhaq (Chinese Physics B, 2014-01-01)

This paper presents an adaptive step-size modified fractional least mean square (AMFLMS) algorithm to deal with a nonlinear time series prediction. Here we incorporate adaptive gain parameters in the weight adaptation ...

Dispersion of radionuclides released into a stable planetary boundary layer using a Monte Carlo model

Basit, Abdul; Raza, S Shoaib; Irfan, Naseem (Journal of Radiological Protection, 2006-01-01)

In this paper a Monte Carlo model for describing the atmospheric dispersion of radionuclides (represented by Lagrangian particles/neutral tracers) continuously released into a stable planetary boundary layer is presented. ...

Groundwater Quality Assessment Using AveragedWater Quality Index: A Case Study of Lahore City,Punjab, Pakistan

Shahid, Syed Umair; Iqbal, Javed (Earth and Environmental Science, 2016-01-01)

Water quality is considered as a major issue in mega cities of developing countries. The city of Lahore has over 10 million populations with the highest population density in the Punjab Province, Pakistan. Groundwater is ...

Study of the reaction K-p→ηΛ

Fazal -e-Aleem; Saleem, Mohammad; Qureshi, Imtinan Elahi (Communications in Theoretical Physics, 1983-01-01)

It is shown that at high energy all available data for differential and integrated cross sections and Λ-polarisation in the reaction K-p→ηΛ can be fitted by using a simple Regge pole model with phenomenological residue ...

Comparative study of SVPWM (space vector pulsewidth modulation) & SPWM (sinusoidal pulse widthmodulation) based three phase voltage sourceinverters for variable speed drive

Ahmed, Waheed; Ali, Syed M Usman (Materials Science and Engineering, 2013-01-01)

We have performedcomparative studies of Space Vector Pulse Width Modulation (SVPWM) and Sinusoidal Pulse Width Modulation (SPWM)techniques utilizing MATLAB tools. During these investigations, we ...

Wireless Control of Miniaturized Mobile Vehicle forIndoor Surveillance

Saquib, Sye d M Taha; Hameed, Sarmad; Ali, Syed M Usman; Jafri, Raza; Amin, Imran (Materials Science and Engineering, 2013-01-01)

This work is based upon electronic automation and Smart Control techniques, which constitute the bDVLV of Control Area Network (CAN) and Personal Area Network (PAN). Bluetooth technology has been interfaced ...

Scope for biological sensing technologies in meatproduction and export in northern Pakistan

Qureshi, M S; Qureshi, I H (Materials Science and Engineering, 2013-01-01)

The Khyber Pakhtunkhwa province of Pakistan is rich in livestock resources, including 14.84 million sheep and goats (valued at US$1.60 billion) and a 27% share of the national poultry sector(having an investment ...

Fabrication and Structural Characterization of Co-implanted Ultra Shallow Junctions for Integration inPiezoresistive Silicon Sensors Compatible withCMOS Processing

Ahmed, S; Mustafa, R (Materials Science and Engineering, 2013-01-01)

Fabrication and structural characterization of Indium and Carbon imp lanted n -type Silicon layers forming ultra-shallow junction for integration in piezoresistive sensors compatible with CMOS processing ...

On the Inclination of Planetary Orbits

Mian, Z.U.; Qadir, Asghar; Quamar, Jawaid (China Ocean Press, 1989-01-01)

Assuming that planets were formed in the equatorial plane of the Sun and that there was a small perturbation at the start, it is shown that relativistic effects could lead to the planetary orbit tilting observed. On the ...

Photodetachment of H− near a Hard Spherical Surface

Haneef, M.; Ahmad, Iftikhar; Afaq, A.; Rahman, A. (Chinese Physical Society and IOP Publishing Ltd, 2012-01-01)

The photodetachment of a hydrogen negative ion (H−) near a hard spherical surface is investigated by using the theoretical imaging method. The surface is oriented in such a fashion that the laser polarization direction is ...

Efficiency of plasma focus for argon K-series line radiation emission

Zakaullah, M; Alamgir, Khalid; Murtaza, G; Waheed, A (Institute of Physics, 2000-01-01)

X-radiation emission from a low-energy Mather-type plasma focus operated with argon is investigated. Attention is paid to finding the pressure range for the highest argon K-series line emission. The argon line radiation ...

Variations of PM2.5, PM10 mass concentrationand health assessment in Islamabad, Pakistan

Mehmood, Tariq; Ahmad, I; Akram, W (Institute of Physics, 2018-01-01)

Sparse information appears in lack of awareness among the people regarding the linkage between particulate matter (PM) and mortality in Pakistan. The current study is aimed to investigate the seasonal mass ...

Nonplanar Electrostatic Solitary Waves in a Relativistic Degenerate Dense Plasma

Ata-ur-Rahman; Mushtaq, A.; Ali, S.; Qamar, A. (Institute of Physics, 2013-01-01)

By employing the reductive perturbation technique, the propagation of cylindrical and spherical ion acoustic solitary waves is studied in an unmagnetized dense relativistic plasma, consisting of relativistically degenerate ...

Photodetachment of a Homo-Nuclear Linear Tetra-Atomic Negative Molecular Ion

Rahman, A.; Ahmad, Iftikhar; Afaq, A. (Institute of Physics, 2012-01-01)

The photodetachment of a homo-nuclear linear tetra-atomic negative molecular ion is studied theoretically for an arbitrary laser polarization. An expression for the total cross section is obtained by using an extended ...

Non-Thermal Effects on CO–NO Surface Catalytic Reaction on Square Surface: Monte Carlo Study

Khalid, M.; Qaisrani, A. U.; Ahmad, W. (Chinese Physical Society and IOP Publishing Ltd, 2005-01-01)

A Monte Carlo simulation of the CO–NO heterogeneous catalytic reaction over a square surface has already been studied with a model based on the Langmuir–Hinshelwood (LH) mechanism. The results of this study are well known. ...

Confined focused sheet beam flow of a thermionic linear electron source

Alvi, A.; Iqbal, M.; Rehman, A.; Islam, G. (Institute of Physics, 2019-01-01)

A magnetically confined sheet beam has been designed and tested for its uniform transmission. The beam is fully immersed in a uniform magnetic field of 50 Gauss which bends and focuses the beam throughout in a uniform ...

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