Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Seyed Ali Razavi"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract This paper presents and applies a new concept of gap-RGW to develop a new configuration for RGW H-plane horn antennas. The proposed antenna is fully metallic and can generate a very low side-lobe level along with a flat gain response over a
Externí odkaz:
https://doaj.org/article/14560882e9424adeb4717729f67af39c
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 18, Iss 6, Pp 430-438 (2024)
Abstract In the design of horn array antennas, usually there is a challenge with the grating lobe problem and consequently quite low aperture efficiency. A new configuration for horn array antennas is presented which introduces high aperture efficien
Externí odkaz:
https://doaj.org/article/96793fe7c8444a9ea933c59f2fbf2269
Publikováno v:
Heliyon, Vol 10, Iss 8, Pp e29068- (2024)
Hydrogen sulfide (H2S) is known as a harmful pollutant for the environment and human health, and its emission control is a high priority. Non-thermal plasma is an effective technology in this field. In this study, for the first time, the performance
Externí odkaz:
https://doaj.org/article/5101819e432d4deb8100b728a5786b87
Publikováno v:
Heliyon, Vol 10, Iss 4, Pp e26280- (2024)
Metal-organic frameworks (MOFs) as carbon dioxide adsorption in combination with metal oxides have shown catalyst application in CO2 conversion. Herein, the MgO/HKUST-1 catalyst is synthesized to direct conversion of CO2 upon dilution by argon in a c
Externí odkaz:
https://doaj.org/article/693e5116d4d34df6a753e891d46ee3ca
Autor:
Malihe Kabusi, Seyed Ali Razavi Nasab, Elham Saber, Reyhaneh Ivanbagha, Behzad Khedri, Zahra Khezerlou, Tayebeh Ilaghinezhad Bardsiri, Zahra Shafiei, Maryam Ebrahimpour Roodposhti, Anahita Zandi, Hamid Hoseyni, Abbas Ghodrati Torbati, Maliheh Eshaghzadeh, Samaneh Eshaghzadeh
Publikováno v:
Iranian Rehabilitation Journal, Vol 21, Iss 2, Pp 223-230 (2023)
Objectives: Social anxiety disorder (SAD) is one the most prevalent psychiatric disorders and generates severe negative effects on patients' mental, individual, and social health. Decreased responsibility, absenteeism, and poor life quality can be th
Externí odkaz:
https://doaj.org/article/67e8ae5b7a42444cb1007a55a9813dc5
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 16, Iss 5, Pp 272-282 (2022)
Abstract In this paper, two H‐plane horn antennae are designed using groove and ridge gap waveguide (GGW and RGW) techniques. In the proposed structures, the gap waveguide is partially filled with a dielectric to control the amplitude and phase dis
Externí odkaz:
https://doaj.org/article/a97b5c885e5c40fb87accdfa31e8bf03
Autor:
Maryam Sadat Mirabedini, Hamideh Pakniat, Mohammad Mahdavi, Seyed Ali Razavi, Ali Emami, Ali Sarbazi Golezari
Publikováno v:
The Journal of Qazvin University of Medical Sciences, Vol 25, Iss 4, Pp 231-236 (2022)
Background: Preeclampsia is one of the common disorders in pregnancy. It is characterized by hypertension and proteinuria in the second half of pregnancy. It is also one of the three main causes of death in pregnant women. Objective: This study inve
Externí odkaz:
https://doaj.org/article/25ad9318f3a3416e9d4ab85ede6e4cb1
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 16, Iss 2-3, Pp 113-123 (2022)
Abstract This study presents a new structure for planar aperture antennas with a very simple configuration by making use of gap waveguide technology. Applying the concept of H‐plane horn in both feeding network and radiating layer results in a flat
Externí odkaz:
https://doaj.org/article/a0152d8ab1c244f8a2498efc42cae7f3
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 15, Iss 14, Pp 1813-1820 (2021)
Abstract In this work, a symmetric pillbox antenna with low side lobes is designed, simulated and fabricated by using gap waveguide technology. The proposed antenna operates on the basis of the reflector antenna principle and provides a fan‐beam ra
Externí odkaz:
https://doaj.org/article/d14db5370cd943f8bc65045a308d14c1
Publikováno v:
Petroleum, Vol 7, Iss 2, Pp 152-159 (2021)
Loss of drilling fluid is a common problem during the drilling of wells and it restricts the appropriate functionality of muds. Drilling fluid loss significantly increases drilling costs and non-productive time as well as the drilling operation risks
Externí odkaz:
https://doaj.org/article/4dfb412be12d483e8148856f55704a72