VOLUME 9 ISSUE 10, 2021 VOLUME 9 ISSUE 10, 2021 1. Power Quality Enhancement Using Multi-Level Inverter with Reduced Number of Switching Devices & Minimum Standing Voltage T Sreenivasa Murthy, B Balaji Babu, K Gopi Nadh, K Madhava Rao, K Kannamatha, M Pravallikaa QIS College of Engineering & Technology PAGE NO: 1-13 DOI:10.37897.QUADERNS.2021.V9I10.21.40179 2. Image Retrieval with Bit Selection Technique using Image Processing Nidamanuri Srinu #1, Vallepu Venkatesh #2, Eedula Raja Mohan #3 QIS College of Engineering & Technology PAGE NO: 14-22 DOI:10.37897.QUADERNS.2021.V9I10.21.40180 3. Protection of Load and Charge in Solar Power Management K Samba Siva Rao, M Sravani, A Sai Lakshmi, Sai Kartheek I, T Karthik, B Triveni QIS College of Engineering & Technology PAGE NO: 23-32 DOI:10.37897.QUADERNS.2021.V9I10.21.40181 4. SBVLC:Secure Barcode Based Visual Light communication for Smart Phones P Pushpa Rani, P Narapareddy, D Sai Akash, K Lokesh, P Venkata Ajay Kumar, P Bala Ramakrishna QIS College of Engineering & Technology PAGE NO: 33-40 DOI:10.37897.QUADERNS.2021.V9I10.21.40182 5. WOMEN SAFETY DEVICE WITH GPS TRACKING AND ALERTS USING ARDUINO J. SriRam Pavan, Ch. Usha, Y. Lahari, U. Manisha, S. Navya Sri QIS College of Engineering & Technology. PAGE NO: 41-48 DOI:10.37897.QUADERNS.2021.V9I10.21.40183 6. Modelling and Simulation of MPPT Controller for Photovoltaic DC/DC Converter Applications Sanjay Kumar Dewangan Govt. Engineering College Bilaspur, Chhattisgarh, India PAGE NO: 49-53 DOI:10.37897.QUADERNS.2021.V9I10.21.40184 7. Construction of Pavers Using Demolished and Waste materials Pradeep Kumar Chaudhary, Prakhar Singh, Sajjad Alam, Prof. Nikhil MIET, Meerut, UP,India PAGE NO: 54-62 DOI:10.37897.QUADERNS.2021.V9I10.21.40185 8. V Hire an Android App for Job Recruitment Shaik Firoz Khan, Shaik Karimulla, Chintalapudi Swarnamukhi, Kota Prasanna, Adusumalli Meenakshi, T Ravi Bhargav QIS College of Engineering & Technology PAGE NO: 63-70 DOI:10.37897.QUADERNS.2021.V9I10.21.40186