Results 21 to 30 of about 61,579 (120)
A New Approach for Liquid Scanners to Determine Flammable Liquid Concentration in Solutions
Hittite Journal of Science and Engineering, 2021 Strong liquid explosives were obtained by mixing some chemical liquids and these explosives were used in many terrorist attacks in crowded places such as airports, railway stations and shopping malls.
Ebru Efeoğlu, Gürkan Tuna
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IEEE Photonics Journal, 2022 This paper presents a photonics-based instantaneous microwave frequency measurement system. The system operates based on the frequency-to-power mapping technique.
Henghao Chen +2 more
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MicromachinesVisualizing the near-field distribution of microwave field in a monopole antenna is very important for antenna design and manufacture. However, the traditional method of measuring antenna microwave near field distribution by mechanical scanning has some ...
Xuguang Jia +5 more
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In-Situ Moisture Assessment in External Walls of Historic Building using Non-Destructive Methods
Environmental and Climate Technologies, 2019 In-situ measurements of a case study building located in Riga old town near the river Daugava has been carried out in this work. Performed measurements are moisture level of historic masonry, and interstitial monitoring of temperature and relative ...
Freimanis Ritvars +3 more
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Applied Sciences, 2017 This paper investigates a unified theory to derive vector network analyzer calibration algorithms based on the T-matrix representation, by which means the line-reflect-match (LRM), line-reflect-match-match (LRMM), and the line-reflect-reflect-match (LRRM)
Wei Zhao +11 more
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Development of a Solid and Flexible Matching Medium for Microwave Medical Diagnostic Systems
Diagnostics, 2021 This paper reports the development of a new composite material as a matching medium for medical microwave diagnostic systems, where maximizing the microwave energy that penetrates the interrogated tissue is critical for improving the quality of the ...
Amin Moradpour +5 more
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Precise measurement of complex permittivity of materials for telecommunications devices
Journal of Telecommunications and Information Technology, 2001 In order to obtain precise complex permittivity of the dielectric materials obtained from the perturbation method a correction curve is made using the electromagnetic field simulator which applies transmission line modeling (TLM) method.
Takayuki Nakamura, Yoshio Nikawa
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Realization of a compact mercury ion microwave clock with frequency stability of 6.3 × 10− 16
Scientific ReportsThe mercury ion microwave clock is considered to be one of the leading candidates for new generation satellite navigation atomic clocks due to its excellent long-term frequency stability, extremely low frequency drift rate, high reliability and good ...
Hao Liu +8 more
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Multi-Channel Radio-Over-Fiber Communication Systems Through Modulation Instability Phenomenon
IEEE Photonics JournalRecent advancements in Radio-over-Fiber (RoF) technology have positioned it as a promising solution for high-capacity wireless communications. This paper explores novel applications of RoF systems in enhancing phased array antenna (PAA) performance for ...
Rasul Azizpour +9 more
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APPLICATION OF FLOW GRAPHS IN THE MICROWAVE MEASUREMENTS SYSTEMS
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2016 Flow graphs are the effective tool for description of the complicated microwave measurement systems and usually are used in the process of creating measurement equation. The algorithm which can find this equation is known as the Mason's gain formula (MGF)
Przemysław Piróg
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