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129 results on '"Farrok, Omar"'

6. Oceanic Wave Energy Devices

Author

Howlader, Tanwi, Farrok, Omar, Kabir, Md Ahsan, Abdullah-Al-Mamun, Md., Ali, Md Sawkat, Farrok, Omar, editor, and Islam, Md Rabiul, editor

Published
2024
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7. Pelamis Wave Energy Converter

Author

Shipon, Mushfiqur Rahman, Ali, Md Sawkat, Kabir, Md Ahsan, Abdullah-Al-Mamun, Md., Farrok, Omar, Farrok, Omar, editor, and Islam, Md Rabiul, editor

Published
2024
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22. SwingBoard: introducing swipe based virtual keyboard for visually impaired and blind users.

Author

Ahmed, Iftekhar and Farrok, Omar

Subjects
*SMARTPHONES, *MATHEMATICS, *COGNITIVE processing speed, *WORD processing, *DESCRIPTIVE statistics, *ASSISTIVE technology, *LONGITUDINAL method, *KEYBOARDS (Electronics), *COMMUNICATION devices for people with disabilities, *BLINDNESS, *HUMAN error, *USER interfaces, *SENSITIVITY & specificity (Statistics)
Abstract

Nowadays, typing is considered as one of the highly important aspects of accessibility that the visually impaired and blinds struggle with the most as existing virtual keyboards are complex and slow. This paper proposes a new text entry method named SwingBoard for visually impaired and blind smartphone users to solve their accessibility problem. It supports a–z, 0–9, 7 punctuations, 12 symbols, and eight keyboard functionalities that are arranged in 8 zones (specific range of angles), four segments, two modes, and different gestures. The proposed keyboard is suitable for the either single-handed or both-handed operation that tracks swipe angle and length to trigger any of the 66 key events. The key triggering process is based on only swiping the finger at different angles with different lengths. Typing speed of SwingBoard is increased by including some effective features such as the quick alphabet and number mode shifting, haptic feedback feature, talkback on swipe to learn the map quickly, and customizable swipe length feature. At the end of 150 one-minute tests, seven blind participants reached an average of 19.89 words per minute (WPM) with an 88% accuracy rate which is one of the fastest-ever recorded average typing speeds for the blind. Almost all users found SwingBoard effective, easy to learn and want to keep using it. SwingBoard is a handy virtual keyboard for visually impaired people with amazing typing speed and accuracy. Rehabilitation would be easier for a visually impaired/disabled person who can adapt the current technology-oriented world and use communication tools easily. As visually impaired and blind people faced a lot of problems in their regular life because of their inability to see things, coping with the evolving world's demands from a person to do a certain task using smart devices would be easier for them with the proposed virtual keyboard topology. As the number of visually impaired and blind users of smartphones rises, faster typing becomes a vital aspect of the smartphone experience. Deaf-blind communities are expanding but solutions for them are not increasing at the same pace because of the limitation of implication. Research on a virtual keyboard with the proposed eyes-free swipe-based typing operation and ears-free reliability on haptic feedback would enable others to create new solutions. [ABSTRACT FROM AUTHOR]

Published
2024
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36. A critical review on control mechanisms, supporting measures, and monitoring systems of microgrids considering large scale integration of renewable energy sources

Author

Hasan, Mahmudul, Mifta, Zannatul, Salsabil, Nafisa Atia, Papiya, Sumaiya Janefar, Hossain, Mehnaz, Roy, Paromita, Chowdhury, Nahid-Ur-Rahman, and Farrok, Omar

Abstract

The numerous obstacles to large-scale integration of renewable energy sources (RESs) and the mitigating steps that need to be taken to overcome them in smart grid technology implementation are extensively discussed in this review article. Main focus is given on the control techniques in Microgrids, different supporting measures such as electric vehicles (EVs), energy storage systems (ESSs), and the monitoring techniques of Microgrid considering large scale renewable energy integration. The absence of physical factors like reactive power and frequency makes the DC microgrid less difficult than the AC microgrid. A comparison of the characteristics of centralized, decentralized, and distributed control arrangements reveals that the microgrid central controller (MGCC) bears the majority of the computational load and the cost of computation in centralized control, whereas local controllers (LCs) bear the least of the load and the cost of computation in completely decentralized control. Centralized and decentralized control also have less difficult implementations than distributed control, which has more complexity. Due to a number of challenges that are discussed in this article, the EV scenario in Bangladesh is rather challenging. The transportation sector has chosen vehicle to grid (V2G) approaches over other technologies due to a number of its advantages. In the event that a home energy storage system and an emergency backup storage system are required, V2G can reduce the cost of EVs and be modified for the local community. An autonomous power generation and distribution system is the main emphasis of a smart micro grid in this age, and internet of things (IoT) is utilized in various applications, such as micro grids, intelligent buildings, and intelligent control devices, for monitoring and tracking crucial data. Based on the topics that are presented in this article, it clearly demonstrates the state-of-the-art research in the area in question.

Published
2023
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41. Contributors

Author

Ahmed, Kawsar, Ahsan Kabir, Md, Alam, K.C.A., Ali, Md Sawkat, Arévalo, Paul, Arif, M.T., Azad, Abul Kalam, Barraza-Botet, César, Benhelal, Emad, Cantillo, Nelly M., Chakrabarty, Pranto, Chandratilleke, Tilak T, Chanthakett, Apinya, Chen, Jinyi, Cobo, Martha, Colmenar-Santos, Antonio, Farrok, Omar, Farzam, R., Galvis, Felipe, Gunawardane, Kosala, Hoseinpour, Marziye, Hossain Khan, M. Saddam, Icaza-Álvarez, Daniel, Islam, Roubaiath, Jahan, Israt, Jurado, Francisco, Kabir, Md Ahsan, Karami, Rahim, Khan, Mohammad Masud Kamal, Mahadi Hasan, Md., Manrique, Juan M., Marufuzzaman, Mathew, Arun, McTaggart-Cowan, G., Mirvakili, Azadeh, Muhammad Sayem, Abu Shadat, Nadim, Nima, Paul, Sanjoy Kumar, Peláez-Peláez, Sofía, Qiu, Yue, Quiroga, Eliana, Rashid, Muhammad Imran, Riveros, Paula, Rodríguez-Fontalvo, David, Rosales-Asensio, Enrique, Saddam Hossain Khan, M., Safavi, S.R., Saha, Suvash C., Salam, Md Abdus, Sánchez, John, Sánchez, Néstor, Sawkat Ali, Md, Subhani, Mahbube, Tostado-Véliz, Marcos, Tuhin, Rashedul Amin, Zhou, Suyang, and Zhuang, Wennan

Published
2024
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