Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Abdelhameed Sharaf"'
Publikováno v:
Nanomaterials, Vol 12, Iss 3, p 305 (2022)
This paper proposes a new graphene gamma- and beta-radiation sensor with a backend RF ring oscillator transducer employed to convert the change in the graphene resistivity due to ionizing irradiation into a frequency output. The sensor consists of a
Externí odkaz:
https://doaj.org/article/c3b2cdc83f844f5aa3215a97453cde45
Autor:
Abdelhameed Sharaf
Publikováno v:
Arab Journal of Nuclear Sciences and Applications.
Publikováno v:
2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers).
Graphene-based RF ring oscillator sensor was demonstrated as a high gauge factor (GF) strain sensor. CVD-grown graphene monolayer on a flexible Cu layer was integrated on a five-stage RF ring oscillator platform and utilized to measure elastic strain
Publikováno v:
Journal of Electronic Materials. 48:7302-7311
This research article focuses on investigating the relation between carbon nanotube network (CANET) parameter adoption and data flow, then encoding. The phase angle and angle division play an important role for encoding the data between the transmitt
Publikováno v:
Sensors and Actuators A: Physical. 232:329-340
We present a key idea of using the graphene-based Schottky junction to achieve high sensitivity and wide detection range radiation sensors. Nanostructured Schottky junction is formed at the interface between a graphene, metal electrode, and a semicon
Publikováno v:
Micro & Nano Letters. 8:775-778
A novel sensor that deploys opto- and electrochemical techniques for the rapid and highly sensitive separation and detection of metal ions in aqueous media is reported. The sensor comprises a porous membrane coated with an ultra-thin porous layer of
Autor:
Sherif Sedky, Abdelhameed Sharaf
Publikováno v:
Microsystem Technologies. 19:1153-1163
This paper presents a new micromachined z-axis accelerometer as well as a new method to sense the out-of-plane displacement capacitively via comb finger arrays. The new design built the z-accelerometer using eight folded beam suspension to minimize t
Publikováno v:
Journal of Physics: Conference Series. 34:464-469
This paper reports on a new decoupled micromachined gyroscope. The proposed sensor is a dual mass type, electrostatically driven to primary mode oscillation and senses, capacitively, the output signal. Full decoupling between drive and sense modes mi
Publikováno v:
2013 IEEE SENSORS.
A novel NEMS radiation sensor optimized for ultrahigh sensitive and isotropic detection of gamma irradiation is presented. The sensor is designed as a 3D symmetrical array of nanostructured platinum nanorod capacitor with 20 to 50 nm silicon oxide di
Autor:
Hani H. Tawfik, Ahmed Abdel Aziz, Sherif Sedky, Abdelhameed Sharaf, A. M. Elshurfa, Mohamed Serry
Publikováno v:
2013 Transducers & Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII).
This paper presents two novel architectures for realizing high performance bulk micromachined gyroscopes based on Silicon-on-Insulator (SOI) technology. The designs have a simulated Brownian noise floor of to 0.014 °/hr, a sensitivity 115 mV/°/s, a