Zobrazeno 1 - 10
of 3 732
pro vyhledávání: '"Slots"'
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
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
Publikováno v:
East European Journal of Physics, Iss 3, Pp 451-456 (2023)
The problem of connecting three electrodynamic volumes with ideally conducting walls through electrically narrow rectilinear connecting slots and a radiating slot is solved by the generalized method of induced magnetomotive forces (MMF). The solution
Externí odkaz:
https://doaj.org/article/759eab3cd1c94ca08086a3534106e302
Autor:
Unal Aras, Tahesin Samira Delwar, P. Durgaprasadarao, P. Syam Sundar, Shaik Hasane Ahammad, Mahmoud M. A. Eid, Yangwon Lee, Ahmed Nabih Zaki Rashed, Jee-Youl Ryu
Publikováno v:
Micromachines, Vol 15, Iss 7, p 809 (2024)
This study uses annular circular rings to create multi-band applications using crescent-shaped patch antennas. It is designed to be made up of five circular, annular rings nested inside of each other. Three annular rings are positioned and merged on
Externí odkaz:
https://doaj.org/article/1ef044b186eb4d4e8bf91cbabf4160b4
Publikováno v:
Symmetry, Vol 16, Iss 6, p 741 (2024)
This article presents a vibration model of neighboring rolling parts that takes into account non-smooth symmetric collisions. This model was used to examine the motion state of the rolling element and the collision force between nearby rolling elemen
Externí odkaz:
https://doaj.org/article/d59be47228c94fbf803af539b758c37b
Autor:
Shengchao Yang, Shuangshuang Jin
Publikováno v:
Journal of Infrastructure Preservation and Resilience, Vol 4, Iss 1, Pp 1-18 (2023)
Abstract This paper proposes a novel multi-grids steel plate shear wall with inclined slots (called MSPSW). This MSPSW composed of the steel plates with inclined slots, precast concrete panels, the transverse and longitudinal (T&L) connecting stiffen
Externí odkaz:
https://doaj.org/article/66dd421f1a894a9db3428f905d6b5eb3
Publikováno v:
Düzce Üniversitesi Bilim ve Teknoloji Dergisi, Vol 11, Iss 2, Pp 1094-1104 (2023)
Bu çalışmada içeriden beslemeli X bandında çalışan yeni bir dikdörtgen yama anten yapısı önerilmiştir. Üzerinde yapılan tasarım işlemleri ile antenin, tek bantta çalışan geleneksel mikroşerit yama antenden X bandı ve Ku bandınd
Externí odkaz:
https://doaj.org/article/c9ab5060d2b146249a9102e909ba5fe3