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Alfin Hikmaturokhman, Kalamullah Ramli, Muhammad Suryanegara, Anak Agung Putri Ratna, Ibrahim Kholilul Rohman and Moinul Zaber
The Indonesian spectrum usage fees?the so-called Biaya Hak Pengguna Frekuensi Izin Pita Frekuensi Radio (BHP IPFR)?are currently calculated using a formula determined by the three following main parameters: the frequency band, the country?s economic para...
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Hamid Mirzahossein, Amir Abbas Rassafi, Zahra Jamali, Robert Guzik, Alessandro Severino and Fabio Arena
Today, automobile dependency constantly causes traffic congestion, delays, reduced access, increased fuel and energy consumption, and environmental emissions. Automobile dependency has caused many direct and indirect transportation problems that may infl...
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Naveed Ashraf, Ghulam Abbas, Nasim Ullah, Ahmad Aziz Al-Ahmadi, Ali Raza, Umar Farooq and Mohsin Jamil
Single-phase direct frequency converters are gaining attraction at the research and academic level as they are rapidly getting space over conventional multistage converters. The converters developed with a rectification and inversion process using a DC-l...
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Jorge Gil, Abílio de Jesus, Maria Beatriz Silva, Maria F. Vaz, Ana Reis and João Manuel R. S. Tavares
Metallic additive manufacturing processes have been significantly developed since their inception with modern systems capable of manufacturing components for structural applications. However, successful processing through these methods requires extensive...
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Mario García de Blas, Morten Andreas Geday, Jose Manuel Otón and Xabier Quintana Arregui
Electrically tunable phase gratings are able to steer an incoming light beam without employing movable parts. Here, we present the design and implementation of a 2D beam steering device by cascading two orthogonal 1D liquid crystal (LC) based phase grati...
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