A5004567396- Plasma Diagnostics and Applications
- Metal and Thin Film Mechanics
- Diamond and Carbon-based Materials Research
- Magnetic confinement fusion research
- Plasma Applications and Diagnostics
- Laser-induced spectroscopy and plasma
- Ion-surface interactions and analysis
- Ionosphere and magnetosphere dynamics
- Particle accelerators and beam dynamics
- Mass Spectrometry Techniques and Applications
- High-pressure geophysics and materials
- GaN-based semiconductor devices and materials
- Asphalt Pavement Performance Evaluation
- Infrastructure Maintenance and Monitoring
- Magnetic Field Sensors Techniques
- Laser-Plasma Interactions and Diagnostics
- Chronic Myeloid Leukemia Treatments
- Dust and Plasma Wave Phenomena
- Superconducting Materials and Applications
- Eosinophilic Disorders and Syndromes
- Electrohydrodynamics and Fluid Dynamics
- Chronic Lymphocytic Leukemia Research
- Advanced Statistical Methods and Models
- Advanced Semiconductor Detectors and Materials
- Surface Treatment and Coatings
Pakistan Institute of Nuclear Science and Technology
2008-2023
Quaid-i-Azam University
2003-2022
Tokamak Energy (United Kingdom)
2014-2015
International Islamic University, Islamabad
2015
Pakistan Atomic Energy Commission
2014
Pakistan Institute of Medical Sciences
2011-2013
University of Agriculture Faisalabad
2011
COMSATS University Islamabad
2011
Government College University, Lahore
2006-2011
King Khalid University
2011
This study presents the synthesis, structural characterization, and application potential of strontium-dextrin metal-organic frameworks (Sr-MOFs) using a single-step crystallization mechanism. In synthesis process, Sr atom functions as pivotal connecting node, directly bonding with both carbon atoms organic linker to form framework. The reaction between corresponding strontium bromide precursor yields brown crystalline Sr-MOFs. Following crystals were collected, characterized, evaluated for...
Trace rare-gas–optical emission spectroscopy is carried out to characterize the nitrogen plasma as a function of discharge parameters. The functional dependence N2(CΠu3) and N2+(BΣu+2) excited states monitored by measuring intensities bandheads second positive first negative systems. excited-state population density N atoms N2 molecules, extracted from their optical emission, related ground-state after normalizing changes for excitation cross section electron energy distribution actinometry....
The room temperature nitriding of titanium is accomplished by utilizing nitrogen ion beams delivered a 2.3 kJ plasma focus discharge. Titanium samples are exposed to ions at different axial positions (3, 5, 7 and 9 cm from the focus) in order correlate their surface properties with beam parameters such as energy, number density, current density energy flux (energy deliverance per unit time volume). A BPX65 photodiode detector employed measure using flight technique. X-ray diffraction...
Background BCR-ABL kinase domain mutations are infrequently detected in newly diagnosed chronic-phase chronic myeloid leukemia (CML) patients. Recent studies indicate the presence of pre-existing a higher percentage CML patients when CD34+ stem/progenitor cells investigated using sensitive techniques, and these associated with imatinib resistance disease progression. However, such were limited to smaller number Methods We from 100 by multiplex allele-specific PCR sequencing at diagnosis....
Triple Langmuir probe (TLP) diagnostic system with its necessary driving circuit is developed and successfully applies for time-resolved measurement of plasma parameters in the negative glow region pulsating-dc discharge. This technique allows instantaneous electron temperature [T−], number density [n−] as well fluctuations without any voltage or frequency sweep. In TLP configuration two probes are differentially biased serve a floating symmetric double whereas third simply into to measure...
Optical Emission Spectroscopy (OES) is used to investigate the effect of argon gas mixing on electron temperature, degree nitrogen dissociation and active species concentration in a 13.56 MHz radio frequency (RF) sustained plasma. The temperature determined from Ar-I emission line intensities by using modified Boltzmann's plot method found be increased with monitored terms (0–0) bands second positive first negative systems respectively. along N2-dissociation appreciably enhanced signifying...
Abstract The optical emission spectroscopy technique is used to determine the vibrational temperature of second positive band system, $$ N_{2} (C,\upsilon^{^{\prime}} - B,\upsilon^{^{\prime\prime}}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msub> <mml:mi>N</mml:mi> <mml:mn>2</mml:mn> </mml:msub> <mml:mo>(</mml:mo> <mml:mi>C</mml:mi> <mml:mo>,</mml:mo> </mml:mrow> <mml:msup> <mml:mi>υ</mml:mi> <mml:mrow/> <mml:mo>′</mml:mo> </mml:msup> <mml:mo>-</mml:mo>...
The carburizing of titanium (Ti) is accomplished by utilizing energetic ion pulses a 1.5 kJ Mather type dense plasma focus (DPF) device operated in methane discharge. X-ray diffraction (XRD) analysis confirms the deposition polycrystalline carbide (TiC). samples carburized at lower axial and angular positions show an improved texture for typical (200)TiC plane. Williamson–Hall method employed to estimate average crystallite size microstrains Ti surface. Crystallite found vary from ∼ 50 100...
Spectroscopic and Langmuir probe measurements are presented to characterize the argon glow discharge plasma generated by a cost-effective 50 Hz AC power source. Optical emission spectra (400–700 nm) recorded for different gas flow rates filling pressures at constant level. The parameters (electron temperature density) deduced from relative intensities of Ar-I Ar-II lines. variation in intensity ratio selected lines, electron density is studied as function rate pressure. Slight increase I 2...
Plasma nitriding of aluminium in a 50 Hz pulsed-dc glow discharge is studied for different ion-current densities (2.0-5.0 mA cm-2) by keeping the corresponding parameters such as treatment time, chamber pressure, substrate temperature and gas composition same. The treated samples are analysed changes induced surface properties using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), Vickers's micro-hardness testing. XRD showed downshift...
The symmetric and asymmetric double Langmuir probe systems with their necessary driving circuits are developed for characterization of low pressure inductively coupled nitrogen plasma, generated sustained 13.56 MHz RF source an automatic impedance matching network.First all, the plasma parameters such as ion saturation current, electron temperature number density determined system at different input powers, filling gas pressures radial distance