Muhammad Khalid

Balochistan University of Information Technology, Engineering and Management Sciences

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Zaheer Abbas Gilani

Balochistan University of Information Technology, Engineering and Management Sciences

Junaid Kareem Khan

NED University of Engineering and Technology

H. M. Noor ul Huda Khan Asghar

Balochistan University of Information Technology, Engineering and Management Sciences

Ali Dad Chandio

NED University of Engineering and Technology

Ghulam Mustafa

University of Management and Technology

Mumtaz A. Qaisrani

University College Dublin

Jinjia Wei

Xi'an Jiaotong University

Muhammad Saeed Akhtar

University of Education

Sameen Aslam

Balochistan University of Information Technology, Engineering and Management Sciences

Jiabin Fang

Xi'an Jiaotong University

Cooperative Institutions

Balochistan University of Information Technology, Engineering and Management Sciences

Islamia University of Bahawalpur

Xi'an Jiaotong University

NED University of Engineering and Technology

University of Karachi

King Saud University

University of the Punjab

Government College University, Faisalabad

University of Balochistan

Quaid-i-Azam University

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Lanthanum doped Manganese-Zinc spinel ferrite nanoparticles for microwave and soft magnet applications

Journal of Materials Science Materials in Electronics (2023)

G. Mustafa Muhammad Khalid Junaid Kareem Khan Zaheer Uddin Mohammad Ashiq

Dielectric loss

10.1007/s10854-022-09700-w

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Citations (8)

EFFICIENCY ANALYSIS OF POLYCRYSTALLINE AND AMORPHOUS SOLAR CELLS IN CLOUDY SKY CONDITIONS OF QUETTA

European Scientific Journal ESJ (2015)

Sunila Bakhsh Shoibullah Khan Muhammad Khalid

Amongst the renewable energy resource solar energy has achieved a high remark. The solar energy being a sustainable energy source is used now-a-days for power generation. There are several ways to employing the solar energy directly. For example the use of PV technology for direct conversion of sunlight into electricity and the other method is the use of solar thermal systems e.g. solar collectors. Researchers around the world showed that the efficiency of the solar cells is greatly affected by the climate of a particular region, such as Omubo-Pepple et al. (2009) showed that there exists a strong relationship between solar irradiance and cell temperature on the efficiency of solar cells. Mieke (1998) compared the efficiency of two different types of solar cells for a hot climate of Jilkminggan (Australia). In this research paper the efficiencies of the p-si and a-si technology are compared in a cloudy sky condition.

Solar Power

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Comparative optical performance investigation of Cross Compound Parabolic Concentrators designed with the elimination of multiple reflections principle

Solar Energy (2023)

Muhammad Khalid Jinjia Wei Sunila Bakhsh Mumtaz A. Qaisrani Muhammad Sohail

Acceptance angle

Aperture (computer memory)

Nonimaging optics

Concentrator

Numerical aperture

10.1016/j.solener.2023.04.064

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Citations (2)

Study of lanthanum ions (La3+) doped Manganese-Cobalt (Mn-Co) based spinel ferrite nanoparticles for technological applications

Applied Physics A (2022)

Junaid Kareem Khan Muhammad Khalid G. Mustafa Zaheer Uddin Murtaza Saleem

Nanocrystalline material

Ionic radius

Lanthanum

Superparamagnetism

10.1007/s00339-022-06106-7

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Citations (6)

Intensity modulated radiation therapy: A review of current practice and future outlooks

Journal of Radiation Research and Applied Sciences (2018)

Jalil Ur Rehman Zahra Nisar Ahmad Muhammad Khalid H. M. Noor ul Huda Khan Asghar

Intensity Modulated Radiotherapy (IMRT) is a modern type of external beam radiotherapy that conforms high radiation dose to the target with minimum dose to the organs at risk (OARs), making it an embellishment of every developed institution. The earlier publications didn't have much proofs of the clinical superiority of IMRT over other radiotherapy techniques. It was considered a complicated and expensive treatment technique but the advent of modern treatment and imaging modalities have made its rapid clinical implementation unquestionable. Now IMRT have grown up, it is not the technique in which non uniform beam intensities were generated just by metal compensators, now it has multileaf collimators (MLCs), rotational fan and cone beam delivery systems and robotic arm linear accelerators to cure the life threatening cancer diseases. IMRT with all its advances have some limitations including its high cost, increased staff work, increased time for its planning, and risks of marginal misses.

Clinical Practice

10.1016/j.jrras.2018.07.006

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Citations (54)

Critical Review on Modification of TiO2 for the Reduction of CO2

HAL (Le Centre pour la Communication Scientifique Directe) (2018)

Muhammad Khalid Tahir Iqbal

With the passage of time the consumption of fossil fuels is increasing which causes to eliminate more and more greenhouse gases such CO2 in our atmosphere. CO2 is much harmful for us causes energy Crises etc. One of the best solution to reduce the quantity of CO2 into valuable sources such as CH4, HCO2H, CH2O, and CH3OH by preparing metal oxide semiconducting materials with the use of metal doping and coupling with other metal oxides. Metal oxide (TiO2) has been used for the photo catalytically reduction of CO2 due its non-toxicity, cheapness and environmentally friendly. Modification of TiO2 has concerned many interests due to maximum light absorption, decrease recombination rate, increase surface area to volume ratio, increase CO2 adsorption ability and enhanced activity of TiO2 for the conversion of CO2 into valuable sources. In this review paper, recent work on TiO2 has been presented including doping of metals and non-metals, coupling with metal oxides and heterojunction composites.

Environmentally Friendly

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Ca_n neutral clusters: a two-step G₀W₀ and DFT benchmark

Beilstein Journal of Nanotechnology (2024)

Sunila Bakhsh Sameen Aslam Muhammad Khalid M. Sohail Sundas Zafar

Electronic and structural properties of calcium clusters with a varying size range of 2-20 atoms are studied using a two-step scheme within the

Benchmark (surveying)

10.3762/bjnano.15.82

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Synthesis and Characterization of Lanthanum doped Co-Zn Spinel Ferrites Nanoparticles by Sol-Gel Auto Combustion Method

Research Square (Research Square) (2021)

Zaheer Abbas Gilani Amir Farooq H. M. Noor ul Huda Khan Asghar Muhammad Khalid Furhaj Ahmad Shaikh

Abstract Spinel ferrites nanoparticles play a significant role in our everyday lives. In the current work, La 3+ doped Co-Zn ferrites with chemical formula Co 0.5 Zn 0.5 La x Fe 2−x O 4 (x = 0.00 to x = 0.2 with step size 0.04) was effectively prepared by sol gel technique. The formation of FCC spinel structure was confirmed by X-Ray diffraction (XRD) analysis. The average crystallite size were calculated to be in the 8 nm to 13 nm range. The lattice parameters were found to be decreased with the doping of lanthanum (La 3+ ) contents. X- Ray density is analyzed to increase as the concentration of (La 3+ ) doping increases, this is due to the fact that La 3+ ion has a higher molar weight than Fe 3+ ion. The spinel phase structure was affirmed by using FTIR.The two main absorption bands ν 1 and ν 2 are referred to tetrahedral stretching band and octahedral stretching band respectively, is found to be in the range of at around 400–530 cm − 1 . Spinel ferrites, such as Co-Zn spinel ferrites, have dielectric features that make them ideal for use in high-frequency applications. With new potential applications being investigated all the time. Physical properties, synthesis method, as well as sintering temperature and time, are all important factors in regulating the properties of dielectric materials. The dielectric features were measured in the frequency of 1 MHz to 3 GHz range. Lowered dielectric parameters studied across a higher frequency range recommend that such nano crystalline ferrites could be used to fabricate the equipment needed to perform at GHz frequencies.

Lanthanum

10.21203/rs.3.rs-670525/v1

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Citations (4)

Characterization of the vertical structure of tidal currents in the Golden Gate (San Francisco) inlet

Muhammad Khalid

Abstract : In the Golden Gate (San Francisco) inlet, tidal currents are dominant and have complex spatial and temporal variations owing to the large size of estuary connected through the narrow channel and the shallow ebb shoal (bar) at the mouth. To capture such variations, shipboard ADCP profiling is a technically viable approach that can yield unique insight into the vertical structure of currents. Shipboard ADCP data from four cruises conducted by the R/V Point Sur in the San Francisco Bight are used in this study. Transects along the channel axis were automatically extracted from the irregularly sampled underway data using changes in speed and heading in combination with geographic criteria. Processed data contains transects traversed in various tidal conditions. Flood currents are bottom intensified with more strength in the relatively deeper area of the channel. In low tidal range conditions, the directions and speed of surface currents are nearly uniform along the entire channel. Ebb currents are surface intensified, decreasing from the Golden Gate to the bar. In low tidal range, near-surface and bottom currents flow in opposite directions. The tidal currents exhibit cross channel variations in strength. Ebb results in surface outflow mainly along the northern part of entrance, whereas the flood flow is strongest along the southern part.

Shoal

Tidal range

Outflow

Point bar

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Impact of aluminum substitution on the structural and dielectric properties of Ni–Cu spinel ferrite nanoparticles synthesized via sol–gel route

Optical and Quantum Electronics (2020)

Kiran Shahzadi Ali Dad Chandio Ghulam Mustafa Muhammad Khalid Junaid Kareem Khan

Lattice constant

Dielectric loss

Dissipation factor

10.1007/s11082-020-02304-w

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Citations (37)