Browsing by Author "Ahmed, Bulbul"

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Android - Based Smart Guardian Assistant
(Daffodil International University, 2020-09-19) Sagor, Md. Mehedi Hasan; Al-Kafi, Md.; Ahmed, Bulbul
This project name is Android and IOS – based smart guardian assistant. We know the present era of the internet with the passage of time the digital platform has become so popular at almost every phase of our life. Mainly we want to make our educational life digital also that was the driving force for us to develop a system that can be used. We try to arrange a way of communication between teacher and guardian to inform guardian about the student’s activities and results. This project makes a more user-friendly fee transaction. Guardians can check the balance of ID with students can pay the bills of the canteen without any hassle. Our project saves enough time for students, guardians also teachers because this project creates a more appropriate attendance system. One part is for user application And The second part is for the admin panel can control the transactions. This project will be very useful because it will make good communication between Teacher and guardian with reduce time.
Design Simulation an analysis of Slotted Micro strip Patch Antenna
(East West University, 2018-12-19) Rana, Masud; Prity, Asora Khatun; Ahmed, Bulbul
The study of Slotted microstrip patch antennas has made great progress in recent years. Compared with conventional antennas, slotted microstrip patch antennas have more advantages and better prospects. They are lighter in weight, low volume, low cost, low profile, smaller in dimension and ease of fabrication and conformity. Moreover, the slotted microstrip patch antennas can provide dual polarization (circular and linear polarizations), dual-band operation, frequency agility, broad band-width, feedline flexibility, beam scanning omnidirectional patterning. In this thesis we investigated the performance of an inset-feed slotted microstrip patch antenna. It is found that the percentage bandwidth of the designed antenna is 10.52%and a return loss of -12 dB. The volume of the antenna is 9208.6 mm3. These results are comparable even better compared with those found in literature.
Secret Knock Detecting Door Locker
(Daffodil International University, 2018-12-24) Imam, Mahadi; Ahmed, Bulbul
The Project idea was to build a knock detecting door locker which can identify the specific knocking pattern and unlock the door if the pattern is correct. This door locking system provides much security than systems which are currently using. When there are many users who use the door, error may occur because there is only one key to open the door. But here in this door locking system this kind of errors may not occur because the users who know the knocking pattern can open the door any time without a key.