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Ping Zhang, Haisheng Liu, Shengli Hou, Nanping Wang and Nianqiao Fang
Natural thermoluminescence (TL) from the core of MD81349 marine calcareous biological ooze samples in the Ninetyeast Ridge of the equatorial northeast Indian Ocean and from the core of IODP306-U1312B in the high latitudes of the North Atlantic Ocean was ...
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Vasileios Manouras and Ioannis Papananos
This paper deals with the design, analysis, and implementation of a Ka-band, single-stage, quasi-inverse class F power amplifier (PA). A detailed methodology for the evaluation of the active device?s output capacitance is described, enabling the designin...
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Di Zhao, Pengxian You, Jing Yang, Junhong Yu, Hang Zhang, Min Liao and Jianbo Hu
Femtosecond hard X-ray pulses generated by laser-driven plasma sources are eminently suitable to probe structural dynamics due to the angstrom spatial resolution and sub-picosecond time resolution. However, the insufficient flux of X-ray photons and high...
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Rebecca M.E. Williams,B.M. Hynek
Pág. 147 - 168
Punctuated lake level drops at Lake General Carrera, Chile, over the last ~13 ka are recorded in multiple stacked deltas that differ in scale. Fifteen delta terrace suites are studied to examine the factors that influence deposit morphology. Surprisingly...
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Pavel Makeev, Yuri Ignatkin and Alexander Shomov
Numerical studies of the aerodynamic characteristics of the coaxial main rotor of the Kamov Ka-32 helicopter in steep descent modes, including the area of the vortex ring state (VRS) modes, have been performed. Used in this paper is an original free vort...
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Paolo Viotti, Giuseppe Sappa, Fabio Tatti and Francesca Andrei
Zerovalent iron nanoparticles (nZVI) are becoming one of the most widely recommended nanomaterials for soil and groundwater remediation. However, when nZVI are injected in the groundwater flow, the behavior (mobility, dispersion, distribution) is practic...
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Ali S. Haider, Ted K. A. Brekken and Alan McCall
An increase in wave energy converter (WEC) efficiency requires not only consideration of the nonlinear effects in the WEC dynamics and the power take-off (PTO) mechanisms, but also more integrated treatment of the whole system, i.e., the buoy dynamics, t...
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Branimir Jaksic, Dragisa Miljkovic, Vladimir Maksimovic, Mile Petrovic, Branko Gvozdic
Pág. e44957
This paper considers the characteristics of satellite television transmission in the world. An overview of the development of satellite television is given through the following characteristics: broadcasting systems - analog and digital (SDTV, HDTV, UHDT...
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Christina Giamali, George Kontakiotis, Efterpi Koskeridou, Chryssanthi Ioakim and Assimina Antonarakou
A multidisciplinary study was conducted in order to investigate the environmental factors affecting the planktonic foraminiferal and pteropod communities of the south Aegean Sea. Aspects of the Late Quaternary paleoceanographic evolution were revealed by...
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Ednardo Rodrigues, Ricardo S. T. Pontes, João Bandeira and Victor P. B. Aguiar
HVDC systems are becoming more common worldwide, specially in Brazil, since the adoption of such system for Itaipu’s hydroelectric complex in the 1980’s. Today, the country has the Xingu-Estreito bipole, with length of 2375 km. This system cr...
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