Zobrazeno 1 - 10
of 3 781
pro vyhledávání: '"Slots"'
Publikováno v:
Engineering Reports, Vol 6, Iss 12, Pp n/a-n/a (2024)
Abstract A simple wideband magneto‐electric (ME) dipole antenna is presented in this letter. In particular, two pairs of L‐shaped slots with different sizes are successively etched out of the pair of horizontal patches of electric dipole, which c
Externí odkaz:
https://doaj.org/article/cc292e0e869143748690ca6bb4c14499
Autor:
Abdelaaziz El Ansari, Sudipta Das, Tanvir Islam, Varakumari Samudrala, Naglaa F. Soliman, Abeer D. Algarni, Najiba El Amrani El Idrissi
Publikováno v:
Heliyon, Vol 10, Iss 18, Pp e37575- (2024)
A graphene-based 1 × 2 array antenna with circular polarization for terahertz applications is prescribed in this article. Initially, a novel concept of a folded quarter wave impedance transformer is utilized in the design process of a single element
Externí odkaz:
https://doaj.org/article/c8a0bedbd7404b2fb69a4c7b3df4689b
Autor:
Adeel Tariq, Syed Waqar Ahmed, Masri Bin Baharom, Khurram Altaf, Ghulam Hussain, Abdullah Jamil, Salah E. Mohammed, Hafiz Muhammad Ali
Publikováno v:
Alexandria Engineering Journal, Vol 89, Iss , Pp 149-171 (2024)
This study analyses Compound Fins (CFs) in turbulent airflows using numerical and experimental methods. CFs combine Novel Plate Fin Heatsinks (NPFHSs) [1] and Slotted fins (S8 and S9) [2] and are compared to plain plate fins. Numerical modelling of t
Externí odkaz:
https://doaj.org/article/7d5d8901171e4582a6bced60372c1c55
Autor:
El Ansari, Abdelaaziz a, Das, Sudipta b, ⁎, Islam, Tanvir c, Samudrala, Varakumari d, Soliman, Naglaa F. e, Algarni, Abeer D. e, ⁎⁎, Amrani El Idrissi, Najiba El a
Publikováno v:
In Heliyon 30 September 2024 10(18)
Publikováno v:
IEEE Access, Vol 12, Pp 185250-185264 (2024)
Multiphase induction machines are investigated as competitive magnet-free candidates for high torque-density, overload-capable, and wide torque-speed range applications. These benefits are enabled by torque-enhancing harmonic injection and phase-pole
Externí odkaz:
https://doaj.org/article/fb280c0573d9489eae5ce2dc49ba1839
Autor:
Seyed Ramin Emadian, Changiz Ghobadi
Publikováno v:
IEEE Access, Vol 12, Pp 170079-170088 (2024)
A miniaturized end-fire microstrip patch antenna with enhanced bandwidth and high-gain characteristics is presented. The design uniquely integrates complementary circular split-ring resonators (CCSRRs) in the rectangular radiation patch and an optimi
Externí odkaz:
https://doaj.org/article/9f843ed6d7ac4f59a94ce408ff8b2ebb
Autor:
Minghu Yu, Yuqiu Zhang
Publikováno v:
IEEE Access, Vol 12, Pp 133221-133233 (2024)
The electromagnetic (EM) vibration noise of fractional-slot permanent magnet synchronous motors (PMSMs) has become increasingly prominent. This paper initiates by deriving the spatial and frequency characteristics of radial EM force density (REMFD) a
Externí odkaz:
https://doaj.org/article/b5a33aeee5d94b0a80c6d5e1468bc11d
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 3, Pp 673-685 (2024)
A compact dual-band reconfigurable elliptical-shaped patch antenna designed in this article. The proposed patch antenna with rectangular strip lines and an elliptical with half-moon slots presented to operate dual bands. To achieve the reconfigurabil
Externí odkaz:
https://doaj.org/article/6dd6e0c774e947a8a71a3215c7766179
Publikováno v:
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", Vol 7, Iss 4, Pp 15-24 (2023)
Leakage of the working substance in the compressor's flow gaps accounts for a large share of its volumetric losses. The optimality of calculated and approximated characteristics depends on the accuracy of quantitative component determination. Accor
Externí odkaz:
https://doaj.org/article/7b8fe12c0387446bbe296193b1ce7b96
Publikováno v:
Chinese Journal of Mechanical Engineering, Vol 36, Iss 1, Pp 1-16 (2023)
Abstract Mechanical agitation in baffled vessels with turbines plays a vital role in achieving homogeneous fluid mixing and promoting various transfer operations. Therefore, designing vessels with optimal energy efficiency and flow dynamics is essent
Externí odkaz:
https://doaj.org/article/166bdf3681204c1e8a3511a872c0cb4d