Results 41 to 50 of about 324,390 (306)

A 4W Doherty power amplifier in GaN MMIC technology for 15GHz applications [PDF]

, 2017
This letter presents an integrated Doherty power amplifier (PA) in 0.25- μm GaN on SiC process. Designed for 15-GHz point-to-point radios, the PA exhibits an output power of 36 ± 0.5 dBm between 13.7 and 15.3 GHz, while at 14.6 GHz, it shows a 6-dB ...
Camarchia, Vittorio, Ghione, Giovanni, Moreno Rubio, Jorge, Pirola, Marco, Quaglia, Roberto   +4 more
core   +3 more sources

Prevalence and impact of prescribing cascades in community‐dwelling adults: Longitudinal analysis of the Irish longitudinal study on ageing (TILDA)

British Journal of Clinical Pharmacology, EarlyView.
Prescribing cascades occur when medication is prescribed to prevent/treat the adverse effects of another medication and may be intentional/unintentional. This study examines the prevalence of nine prescribing cascades (ThinkCascades) in The Irish Longitudinal StuDy on Ageing (TILDA).
Ann Sinéad Doherty, Rose Anne Kenny, Frank Moriarty, Fiona Boland, Barbara Clyne, Tom Fahey, Denis O' Mahony, Emma Wallace   +7 more
wiley   +1 more source

Differences Among Subtropical Surface Salinity Patterns [PDF]

Oceanography, 2015
The subtropical ocean, exposed to evaporation excess over precipitation, is characterized by regional sea surface salinity maxima (SSS-max). Ocean circulation and mixing processes inject freshwater, establishing a quasi-steady state, though imbalances ...
Arnold Gordon, Claudia Giulivi, Julius Busecke, Frederick Bingham   +3 more
doaj   +1 more source

Design of Power Efficient Power Amplifier for B3G Base Stations. [PDF]

, 2010
yesFourth generation systems require the use of both amplitude and phase modulation to efficiently utilize the available spectrum and to obtain high data rates, hence imposing stringent requirements on the power amplifier in ...
Abd-Alhameed, Raed A., Gwandu, B.A.L., Hussaini, Abubakar S., Rodriguez, Jonathan   +3 more
core   +1 more source

Exploring personality traits and mental toughness in early career teachers in England

British Educational Research Journal, EarlyView.
Abstract While some teachers thrive, in similar circumstances other teachers encounter considerable difficulties. This is particularly concerning in England, where high numbers of teachers with five or fewer years' experience leave the profession to take another job outside of teaching, and pupil numbers are outpacing teacher numbers (Bryan & Price ...
Joanne E. Taberner, Sarah MacQuarrie
wiley   +1 more source

School readiness and the good level of development: Policy constructions in English early childhood education

British Educational Research Journal, EarlyView.
Abstract This paper critically analyses how school readiness has been historically and discursively constructed in Early Childhood Education (ECE) policy in England over the past four decades. Using Bacchi's ‘What's the Problem Represented to be?’ framework and Foucauldian concepts of governmentality, the paper explores how school readiness has shifted
Louise Kay
wiley   +1 more source

Dynamic Power Splitting in a Hybrid Common-Emitter/Common-Base Doherty Amplifier for High Average Efficiency Above 100 GHz Using an InP HBT Process

IEEE Journal of Microwaves
A Doherty power amplifier is introduced that uses a hybrid combination of common-emitter (CE) and common-base (CB) devices for operation above 100 GHz. The use of CE and CB devices demonstrates dynamic input power splitting between a main and auxiliary ...
Eythan Lam, James F. Buckwalter
doaj   +1 more source

Two-Port Network Theory-Based Design Method for Broadband Class J Doherty Amplifiers

IEEE Access, 2019
This paper proposes a new methodology for designing wideband Class J Doherty power amplifiers (DPAs). The paper begins by presenting a network analysis that leads to a set of design equations to govern the synthesis of the combiner network parameters ...
Yue Li, Xiaohu Fang, Ayman Jundi, Hai Huang, Slim Boumaiza   +4 more
doaj   +1 more source

The impacts of biological invasions

Biological Reviews, EarlyView.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock, Teun Everts, Neil Angelo S. Abreo, Jamie Bojko, Victor Deklerck, James W. E. Dickey, Ana Clara S. Franco, Emili García‐Berthou, Stelios Katsanevakis, Natalia I. Kirichenko, Stefano Mammola, Martin A. Nuñez, Ben Parker, Riccardo Scalera, Ismael Soto, Diederik Strubbe, Ali Serhan Tarkan, Lorenzo Vilizzi, Tim Adriaens, Paride Balzani, Dagmara Błońska, Elizabeta Briski, Rein Brys, Amy L. Burgess, James E. Byers, Carlos Cano‐Barbacil, Giuseppe Castaldelli, Jaimie T.A. Dick, Victoria Dominguez Almela, Romina D. Dimarco, Margarita Florencio, Antonín Kouba, Melina Kourantidou, Irmak Kurtul, Irene Martín‐Forés, Olivier Morissette, Julian D. Olden, Bruno E. Soares, Jakub Truszkowski, Hugo Verreycken, Marc Kenis, Ronaldo Sousa, J. Robert Britton   +42 more
wiley   +1 more source

Reading hominin life history in fossil bones and teeth: methods to test hypotheses regarding its evolution

Biological Reviews, EarlyView.
ABSTRACT Human life history is derived compared to that of our closest living relatives, the great apes. It has been suggested that these derived traits are causally related to aspects of our ecology, social behaviour and cognitive abilities. However, resolving this requires that we know the evolutionary trajectory of our distinctive pattern of growth,
Paola Cerrito, Judith M. Burkart, Carel van Schaik   +2 more
wiley   +1 more source