Browsing by Author "Muhammad Zubair"

Filter results by typing the first few letters
Now showing 1 - 4 of 4
  • No Thumbnail Available
    Item
    Birds Store Of Pakistan
    (Library Information Services, COMSATS University Islamabad, Lahore Campus, 2021) Muhammad Zubair; SP17-BCS-121; Dr. Muhammad Hussnain Ch; LHR TP 7491
    The Birds Store of Pakistan is a platform in which customers can buy Medicines, Vitamins, Toys and different products related to birds like cages and customer can buy birds from this website. People can post their adds also for selling their birds and products like cages, vitamins and toys of birds. In this website there are two main features. We as an admin can post birds adds and other add and the second main feature is people can also post their adds. And as an admin we can approve or reject add of people after analysis. Duplicate adds will be remove immediately just like olx and pakwheels. And customer can buy other people products also from one website only. This will be the first website in Pakistan that will use these two features. Customers can contact us for information via our contact no and they can see vet doctors nearby from their location. The best vets in each city will be show in high priority. It all depends on customers. If they want to go to vet nearby their location then they can view easily from just one click and if they want the best doctors then they can contact best vet or doctors in each city.
  • No Thumbnail Available
    Item
    COMMUNITY BUILT THROUGH BRIDGING OLD AND NEW
    (Library Information Services, COMSATS University Islamabad, Lahore Campus, 2021) Muhammad Zubair; CIIT/FA16-BAR-063/LHR; Dr. Waqar Aziz, Assistant Profesor; LHR TP 7092
    people live in a particular society. but actually, they do not live in society, because some pseudo factors are forcefully put in the society in the form of technology, material and building language. regional activities, feelings and spaces are circumscribed by cultures and this is part of a particular community. It means community discourse between the above three things and culture is the identity of the region, where the issue is monoculture occupies regional culture and it becomes a radial envelope around the community like a tree annual ring. Monoculture creates a layer and border in society. I am trying to bridge all tangible and intangible layers and borders of a community through a mooring thread that can inform the architectural program, space, architectural language and material. It does help to stitch the community layers and borders with each other and enclose them in the regional tent
  • No Thumbnail Available
    Item
    The Mechanical Strength Effects in terms of Conductivity and Fuel Cell Performance for low Temperature Solid Oxide Fuel Cell (LTSOFC)
    (Library Information Services, COMSATS University Islamabad, Lahore Campus, 2019) Muhammad Zubair; CIIT/FA17-RPH-066/LHR; Dr. Ghazanfar Abbas; LHR TP 5740
    Energy is one of the essential factors for human progress and is the bedrock of present-day improvement, however there is an extraordinary setback in the supply of energy assets everywhere throughout the world because of increment sought after of energy. There are two fundamental energy assets that are utilizing to satisfy our energy necessity. These are, Non-sustainable energy source assets are limited and environmentally poison then again sustainable energy source assets are unlimited and friendly for environment. The overarching energy crises on the planet must be handled by utilizing reasonable energy sources. Fuel cell is one of the sustainable energy source assets which could be the elective energy source with no natural issue. This theory gives a methodology how to grow new nanocomposite electrolyte and cathode materials for low temperature strong oxide energy component (LTSOFC) based on nanocomposite way to deal with lower the working temperature of SOFC. Nano composite electrolyte ‘samarium doped Ceria (SDC)’ has been synthesized for LTSOFC by using co-precipitation method with precipitating agent of (sodium carbonates). Li, Ni, Cu carbonates are mixed with zinc nitrate by using solid state reaction method for solid oxide fuel cell electrodes. The structure and morphology of the synthesized nanocomposite electrolyte and electrode was examined by X-Ray diffraction (XRD). The Fuel Cell Performance was tested at temperature (300-650 °C). The Ionic Conductivity of the sintered nanocomposite was measured by four probe DC method. XRD patterns of the samples reveal that synthesized materials are nanostructured. The SDC has single phase material of cubic structure while the LNCZ material has two phase material, first phase is zinc oxide (ZO) of hexagonal structure and second is nickel oxide (NiO) of cubic structure. The ionic conductivity of 0.13S/cm at 650°C for 𝐶𝑒0.8𝑆𝑚0.2 and 1.65 S/cm at 650°C for (𝐿𝑖0.18𝐶𝑢0.18𝑁𝑖0.32𝑍𝑛0.32) has been achieved. The fuel cell performance was checked at the temperature of 400 °C to 650 °C with three layers of cell in which smarium based nanocomposite material as an electrolyte. It gives excellent performance with maximum power density 525mW𝑐𝑚−2 at 650 °C temperature.
  • No Thumbnail Available
    Item
    Voltage And Frequency Regulation For Distribution
    (Publisher COMSATS University Islambad Lahore Campus, 2021) Muhammad Zubair; , SP17-REE-007; : Dr. Sobia Baig, Assistant Profesor [Supervisor]; LHR TP 5632
    Microgrids comprising the renewable energy resources are the new face of modern elec tricity infrastructure. These grids work autonomously, have their own control architecture and give support to the utility grid in case of any failure. Most of the energy resources in microgrids are renewable like solar, wind etc. These resources have an intermittent nature making the control architecture an essential tool for its better performance. The induction of excessive renewable resources in the utility grid causes serious stability problems as these resources have intermittent nature. Therefore, an efficient control system is the main priority in these types of grids. The control system that is designed for microgrids requires to control some important parameters like voltage and frequency, active/reactive power bal ancing, power flow etc. Regulation of voltage and frequency within its nominal values is the most important parameter that ensures the stability of microgrid. The disturbance in voltage and frequency occurs due to variation in both generation and load. A centralized control approach is adopted in this research work using classical PID con troller to tackle this problem of voltage and frequency regulation. An isolated microgrid model is integrated in a Simulink interface tool using solar, wind and battery as resources. The centralized PID controller is implemented on load bus bar of 0.4 KV. This PID con troller is then tuned with closed loop PID autotuner block in real time as load and gen eration of the isolated microgrid are not constant. A detailed comparison of simple PID and PID with autotuner block is done using the frequency and voltage response of both techniques in constant and varying load scenarios. Results and calculation of various pa rameters shows that the PID working with closed loop autotuner has better performance compared to the simple PID whose gains are calculated at the start using conventional technique like Ziegler-Nichols method. This is because the PID used with autotuner block has its gains updated by observing the real time response of the system whereas simple PID tries to tackle the constantly varying load conditions based on its initial gain values. The performance of control strategy is also observed using real site data of solar and wind for Nooriabad, a city of Sindh Province in Pakistan