Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Sunanda Roy"'
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 1, Pp 130-139 (2024)
This paper presents the design of fully metallic 3D Vivaldi antenna that can be used for wireless power transmission applications. The 3D antenna consists of 1) a tapered profile, 2) a rectangular cavity, and 3) a horizontal slot cut that is used as
Externí odkaz:
https://doaj.org/article/1d30b47125e84b5c867429bc8b006b77
Publikováno v:
IEEE Access, Vol 9, Pp 39303-39321 (2021)
This article addresses the design and implementation of a novel quad-band electromagnetic (EM) and solar energy scavenging system, ensuring energy harvesting from ambient RF environment with excellent “cold start” power level. The proposed scaven
Externí odkaz:
https://doaj.org/article/a715f3dd803d481db07c5d958cda4ae8
Publikováno v:
IEEE Access, Vol 9, Pp 77464-77481 (2021)
This article proposes a quad-band multiport harvester that can scavenge ambient radio frequency (RF) energy of available frequency bands (i.e. GSM-900, GSM-1800, 3G and Wi-Fi) efficiently. This design’s novelty is the use of frequency-dependent mul
Externí odkaz:
https://doaj.org/article/e74e2158b6414310aa6b3d3184ee98f8
Autor:
Hossain Mahmood, Chameli Saha, Md. Sazzad Hossain, Md. Towhidur Rahman, Md. Seikh Sadiul Islam Tanvir, Sunanda Roy, Abul Bashar, Fozlay Rabby, Shah Newaz Ahmed, Md. Hazrat Ali
Publikováno v:
Environmental Challenges, Vol 4, Iss , Pp 100201- (2021)
A 1320-Megawatt capacity coal-fired power plant is establishing near the Ecologically Critical Area of the Sundarbans, Bangladesh. This power plant will generate 0.71 million tons of coal fly ash annually. Most of the previous studies concentrated on
Externí odkaz:
https://doaj.org/article/6207660eefb744a5948a2e3de35ca769
Autor:
Hossain Mahmood, Chameli Saha, Narottam Paul, Shraboni Deb, S.M. Rubaiot Abdullah, Md. Seikh Sadiul Islam Tanvir, Abul Bashar, Sunanda Roy, Fozlay Rabby, Shah Newaz Ahmed, Md. Hazrat Ali
Publikováno v:
Environmental Challenges, Vol 3, Iss , Pp 100048- (2021)
The Rohingya refugee camps in Bangladesh are located in the forest areas of the Cox's Bazar South Forest Division. The construction of refugee camps has caused detrimental changes in the natural vegetation and soil quality of the campsites. The objec
Externí odkaz:
https://doaj.org/article/09fa4a4c387740b3865c37f8858b5051
Autor:
Sunanda Roy, Jun-Jiat Tiang, Mardeni Bin Roslee, Md. Tanvir Ahmed, Abbas Z. Kouzani, M. A. Parvez Mahmud
Publikováno v:
Sensors, Vol 22, Iss 2, p 424 (2022)
For low input radio frequency (RF) power from −35 to 5 dBm, a novel quad-band RF energy harvester (RFEH) with an improved impedance matching network (IMN) is proposed to overcome the poor conversion efficiency and limited RF power range of the ambi
Externí odkaz:
https://doaj.org/article/d7b8d147bdbf48d88cd9d45c1a833166
Autor:
Sunanda Roy, Jun Jiat Tiang, Mardeni Bin Roslee, Md Tanvir Ahmed, Abbas Z. Kouzani, M. A. Parvez Mahmud
Publikováno v:
Sensors, Vol 21, Iss 23, p 7838 (2021)
RF power is broadly available in both urban and semi-urban areas and thus exhibits as a promising candidate for ambient energy scavenging sources. In this research, a high-efficiency quad-band rectenna is designed for ambient RF wireless energy scave
Externí odkaz:
https://doaj.org/article/e283abe2c2264b1ea1a56af38ae1aac7
Autor:
Sunanda Roy, Author
The book studies a set of mathematical tools and techniques most necessary for undergraduate economics majors as they transition from largely non-technical first-year principles courses into calculus-based upper-level courses in economics. The book's
Publikováno v:
IEEE Transactions on Antennas and Propagation. 71:3204-3215
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2752ad59a78e54078e013bee17ef037c
https://doi.org/10.1109/tap.2023.3243852
https://doi.org/10.1109/tap.2023.3243852
Autor:
Sunanda Roy, Barnali Dasgupta Ghosh, Kheng Lim Goh, Jaehwan Kim, Hyeok Jun Ahn, Young-Wook Chang
Publikováno v:
Carbon. 206:422-433
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b8d5338b9eb247e37c21b1b9874f5fe
https://doi.org/10.1016/j.carbon.2023.02.040
https://doi.org/10.1016/j.carbon.2023.02.040