Sökning: "Muhammad Ray"

Hittade 4 uppsatser innehållade orden Muhammad Ray.

  1. 1. Cargo inspection by means of electromagnetic radiation

    Master-uppsats, Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Författare :Muhammad Shakeel Arshad; [2021]
    Nyckelord :Cargo inspection by means of electromagnetic radiation;

    Sammanfattning : This study is based on a detailed literature review of the approaches that are being used for inspecting cargos. It was concluded that especially X-rays are suitable for precise inspection of cargos due to high-quality output images. The images captured with X-Ray scanning methods are sufficient for discriminating various materials. LÄS MER

  3. 2. Quantifying relationships between X-ray imaged macropore structure and hydraulic conductivity

    Master-uppsats, SLU/Dept. of Soil and Environment

    Författare :Muhammad Arslan Ahmad; [2016]
    Nyckelord :critical pore diameter; modelling; pedotransfer functions; physics based approaches; SoilJ; 3-D visualization; soil characterization;

    Sammanfattning : Computer based simulation models which estimate hydraulic properties of soil usually make use of statistical approaches such as multiple regressions that relate hydraulic properties to widely measured soil properties like textural fractions, organic matter content and bulk density. The problem is that hydraulic properties are usually only weakly correlated to these properties, because it is more strongly dependent on the characteristics of larger pores in the soil. LÄS MER

  4. 3. Implementation and performance analysis of star-based mesh network

    Master-uppsats, JTH, Data- och elektroteknik; Tekniska Högskolan

    Författare :Muhammad Haq; [2011]
    Nyckelord :WSN; PAN-coordinator; Full-function device; Reduced-function device; Mesh topology; Beacon Network simulator; NS-2; Shadowing model;

    Sammanfattning : The goal of the thesis is to design the star-based mesh topology by introducing multiple pan-coordinators (hub/switches) under a multipath-fading environment and to improve the data transaction rate of a network which usually gets worst when there is a single pan-coordinator for synchronization of devices in conventional mesh topology; also reduce the hop-count as least as possible. Most of the work has been done on NS-2 network simulator; therefore the research model which has been used here is a simulation model. LÄS MER

  5. 4. Growth of Pt/Mg Multilayer X-ray Mirrors : Effects of Sputter Yield Amplification

    Master-uppsats, Institutionen för fysik, kemi och biologi

    Författare :Hafiz Muhammad Sohail; [2009]
    Nyckelord :Multilayer; X-ray mirror; Pt Mg; DC magnetron sputtering; sputter yield amplification; backscattered neutrals; X-ray reflectivity; XRD; TRIM; IMD.;

    Sammanfattning : This thesis report is focused on the growth of Pt/Mg multilayers and the studies of the sputter yield amplification effect in these. The main application is to use the multilayers as X-ray mirrors reflecting an X-ray wavelength of 17 Å. LÄS MER