1.435   Artículos

 
en línea
Nikola Pfauserová, Ondrej Slavík, Pavel Horký, Jitka Kolárová and Tomá? Randák    
The introduction of non-native species and human-altered habitats are currently the main threats to freshwater ecosystems. Due to predation and competition, biological invaders can cause extinctions and imperil the status of native species, and this phen... ver más
Revista: Water    Formato: Electrónico

 
en línea
Roberto Humeres Solar    
Los orígenes del Urbanismo â??como los de todas aquellas ciencias que tienen su raigambre en las necesidades fundamentales de la sociedad humanaâ?? remontan a las más lejanas civilizaciones.  Bástenos recordar la ciudad de Kahun, construída por Sesostris... ver más
Revista: Revista de urbanismo    Formato: Electrónico

 
en línea
Peberlin Parulian Sitompul, Pakhrur Razi, Timbul Manik, Mario Batubara, Musthofa Lathif, Farahhati Mumtahana, Rizal Suryana, Ibnu Nurul Huda, Taufiq Hidayat, Yana Taryana and Farhan Sobirin    
After years of preparation, the Indonesia National Observatory, located in Mount Timau, Kupang Regency, is currently in the completion stage of research in astronomy and astrophysics and related subjects. An optic telescope with a 3.8 m diameter is expec... ver más
Revista: Aerospace    Formato: Electrónico

 
en línea
Omar Serghini, Hayat Semlali, Asmaa Maali, Abdelilah Ghammaz and Salvatore Serrano    
Spectrum sensing is an essential function of cognitive radio technology that can enable the reuse of available radio resources by so-called secondary users without creating harmful interference with licensed users. The application of machine learning tec... ver más
Revista: Future Internet    Formato: Electrónico

 
en línea
Ryunosuke Masaoka, Gia Khanh Tran, Jin Nakazato and Kei Sakaguchi    
Nowadays, wireless communications are ubiquitously available. However, as pervasive as this technology is, there are distinct situations, such as during substantial public events, catastrophic disasters, or unexpected malfunctions of base stations (BSs),... ver más
Revista: Future Internet    Formato: Electrónico

 
en línea
Sojeong Roh, Trong Danh Nguyen and Jun Seop Lee    
Radio Frequency Identification (RFID) technology, capable of wirelessly processing large amounts of information, is gaining attention with the advancement of IoT technology. RFID systems can be utilized as Wireless Sensor Network (WSN) technology by intr... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Mihai Petru Stef and Zsolt Alfred Polgar    
With the constant growth of software-defined radio (SDR) technologies in fields related to wireless communications, the need for efficient ways of testing and evaluating the physical-layer (PHY) protocols developed for these technologies in real-life tra... ver más
Revista: Information    Formato: Electrónico

 
en línea
Chuanzhe Gao, Shidang Li, Mingsheng Wei, Siyi Duan and Jinsong Xu    
With the rapid development of wireless communication networks and Internet of Things technology (IoT), higher requirements have been put forward for spectrum resource utilization and system performance. In order to further improve the utilization of spec... ver más
Revista: Information    Formato: Electrónico

 
en línea
Ivan di Stefano, Daniele Durante, Paolo Cappuccio and Paolo Racioppa    
The exploration of Uranus, a key archetype for ice giant planets and a gateway to understanding distant exoplanets, is acquiring increasing interest in recent years, especially after the Uranus Orbiter and Probe (UOP) mission has been prioritized in the ... ver más
Revista: Aerospace    Formato: Electrónico

 
en línea
Gursu Gurer, Yaser Dalveren, Ali Kara and Mohammad Derawi    
The automatic dependent surveillance broadcast (ADS-B) system is one of the key components of the next generation air transportation system (NextGen). ADS-B messages are transmitted in unencrypted plain text. This, however, causes significant security vu... ver más
Revista: Aerospace    Formato: Electrónico

« Anterior     Página: 1 de 100     Siguiente »