Now showing items 281-300 of 572

    • Multi-level inviter design and topologies 

      Taposh, Asif Nahin; Islam, MD. Tarequl; Howlader, Timon Ponkoj; Arpon, Waheed Ali (BARC University, 2017-12)
      AC power is most widely used power sources both in household appliances and industrial machines. But when AC supply is not available for a certain period of time at that time we need to convert stored DC power in to AC ...
    • Performance comparison between fixed panel, single-axis and dual-axis sun tracking solar panel system 

      Chowdhury, Kamrul Islam; Alam, Md.Iftekhar-ul; Bakshi, Promit Shams (BRAC University, 2017-12)
      Solar energy is one of the most reliable alternative energy source in this modern era. Thousand researches on improving the efficiency of photovoltaic (PV) system are ongoing to make it more competitive among all other ...
    • Single molecular transistor 

      Mitra, Kangkan; Hossain, Farheen (BRAC University, 2017-12)
      Eectron transport through single particles is emphatically influenced by single-electron charging and the vitality level quantization. In this proposition, we research electron transport in single particle transistors made ...
    • Silver nanoparticle synthesis, characterization, properties 

      Bayazid, G.M. Asik; Shamma, Shahla Samim; Razy, Alim Al; Bosu, Rajib (BRAC University, 2017-12)
      Nanoparticle is a part of ultrafine particle and it has at least one dimension with lengths in between 1nm to 100nm, which shows different properties to the bulk materials for its greater surface area per weight. Now a ...
    • Intelligent Character Recognition system for visually impaired people 

      Alam, Md. Sabbir; Faisal, Bhuiyan Washek; Hasan, Mohammad Al Imran (BARC University, 2017-12)
      The project is to develop a system, which use optical character recognition (OCR) software to detect words, line and paragraph, pronounce that accordingly. Furthermore to help a visually impaired people. We also added few ...
    • SAN advancement for central depository systems 

      Sakib, Mashrur (BRAC Univeristy, 2017-06)
      Large data storage has become one of the main problems in the development of network because of rapid increase of data storage. Storage Area Network devices are capable of processing the mass capacity, high I/O transfer ...
    • Bimetallic Au-Ag nanorod dimers as plasmonic biosensors 

      Rahman, Md Ahnaf; Hossain, Aishik; Hossain, Mohammed Shadman (BRAC University, 2017-08)
      Abstract Fano resonance, discovered by Italian-American physicist Ugo Fano, is a general wave phenomenon and is seen throughout many areas of engineering and physics. It is a kind of resonant scattering occurrence that ...
    • The performance analysis of single and dual axis sun tracking system: a comparative study 

      Fahad, Hussain Mohammad; Islam, Aporajita; Hasan, Md. Fahim; Fariha, Wasima (BRAC University, 2017-08-20)
    • An extended model for a punch through (PT) insulated gate bipolar transistor (IGBT) and its transient characteristics 

      Saif, Omar; Pavel, Md. Fazle Rabbi; Hasan, Md. Akib; Shah, Asif (BRAC University, 2017-08-20)
      The IGBT (Insulated gate bipolar transistor) is driven by MOSFET and has been modeled as a wide-base bipolar junction transistor (BJT). In our thesis we are proposing to make a new physical-base model for a punch though ...
    • Localized surface plasmon resonance based bowtie nanoantenna for optical biodetection 

      Kalam, Fateen Bin; Biswas, Sushmita; Shakib, Fatema (BRAC University, 2017-08)
      Local Surface Plasmon Resonance is now considered one of the most promising topics due to its various applications in optics, photo catalysis, medicine and photovoltaics. Among these, Plasmonic nanoantennas have attracted ...
    • Digital pen with keyboard functionality 

      Raju, Yadil Alam; Rimon, Rakib Hassan; Mehedi, Md.Mohiuddin (BRAC University, 2017-08-20)
      Proposal for building a wireless digital pen, which can work like a keyboard but more elegantly with the help of gyro sensor and C++ program be used for writing in classrooms, conferences, at presentation or anywhere. This ...
    • Eshtablishment of "BRAC Onnesha" nano sattelite ground station and comparative analysis of different types of antenna as a portable low earth orbit sattelite ground station receiving antenna 

      Haque, Md. Arafat; Arifin, Jamil (BRAC University, 2017-08)
      BRAC ONNESHA is the first Nano-Satellite of Bangladesh which opened path for students to start research in space engineering. BRAC Onnesha Ground station is the first Nano-Satellite Ground station of Bangladesh assembled ...
    • Analysis of bulk negative capacitance field effect transistor 

      Rahman, Towfiqur; Khan, Antara Fairooz; Nawal, Nowshin (BRAC University, 2017)
      In this work, a comprehensive analysis of bulk Negative Capacitance Field Effect (NCFET) transistor has been done. The objective of the paper is to show if a ferroelectric insulator is introduced in MOSFET structure, it ...
    • Over and under voltage protection using GSM module 

      Sajid, Rohan Zaman; Khan, Mehedi Rahman; Ahmad, Saquif (BRAC University, 2017)
      Automation in the distribution field permits utilities on actualize all the adaptable control for distribution systems, which can be used to upgrade efficiency, reliability, quality of electric service. Automation not only ...
    • Transparent and flexible coplanar antenna for 5G mobile communication 

      Rahman, Sahariar; Siddique, Nazmu Shahadat; Haque, Majedul (BRAC University, 2017)
      Over the few decades wireless mobile communication technology has developed tremendously although the inception of this is not so ancient. Recently the electronic device fabrication technologies are moving towards ...
    • Portable non-invasive cardiac health monitoring device 

      Rahman, Akhlakur; Jahangir, Tameem; Khaled, Kazi Omar (BRAC University, 2017-08-20)
      Recent technological advancements have accelerated public healthcare sector by developing biomedical devices with advanced functionalities. New innovations have made it possible for the consumers to use portable devices ...
    • Band structure study of graphene and transition metal dichalcogenides heterostructures 

      Ahmed, Saif; Ahmed, Nafisa Nowshin; Nur, Juhayer An (BRAC University, 2017)
      According to Moore’s Law, it is predicted that the number of transistors –the building blocks of any modern electronic device– on integrated circuits per square inch will double every year. However studies show that the ...
    • Optimization of a solar powered water pump for crop irrigation 

      Shafiq, Nahian; Navall, Nafisa; Shoshi, Sanjida; Rahman, Afnan Rudabe (BRAC University, 2017-08)
      The main aim of this thesis is to design a solar powered water pump that can provide water for irrigation without the use of batteries or generators. We have designed the system such that necessary power can be obtained ...
    • Modeling a DC to DC converter and design a controller for the converter 

      Haque, Ayman Mahmud; Sutradhar, Dipanwita; Islam, Md Istiakul; Ferdous, Zarmin (BRAC Univeristy, 2017)
      DC-DC converters are some of crucial power electronic circuits. They are widely used in the power supply equipment for most electronic instruments and also in specialized high-power applications such as battery charging, ...
    • Novel design for shifted radiation pattern of rectangular microstrip patch antenna loaded with metamaterial 

      Nahiyan, Swad Al; Salehin, Ahmed Raisu; Shuvho, D. Golam Mehdy Hassan; Liaqat, Sheikh Minhaj (BRAC University, 2017)
      Microstrip patch antenna is one of the popular types of antenna in the field of antenna manufacturing and designing. It is a narrow band wide beam antenna, which can be mounted on flat surfaces. This type of antenna has ...