Results 51 to 60 of about 2,179 (234)

Synergistic mechanisms foster declines in native fish community stability following the introduction of non‐native species

Ecography, EarlyView.
Non‐native species introductions profoundly alter freshwater communities, yet the mechanisms by which non‐native fishes affect native community stability remain unclear. Using a multi‐decadal dataset on fish community composition and abundance collected across France, we quantified native community stability and decomposed this metric into its main ...
Chengzong Tian, Mengzhen Xu, Congcong Wang, Wei Xin, Xiongdong Zhou, Jorge García‐Girón   +5 more
wiley   +1 more source

A New Paradigm: 46 Structural Cell Types Function as Environment‐Supporting Innate Immune Cells, With Endothelial and Vascular Smooth Muscle Cells as Key Prototypes

iNew Medicine, EarlyView.
ABSTRACT The scope, organization, and biological significance of innate immune functions across structural cell types remain poorly defined. To address these fundamental knowledge gaps, we analyzed experimental data of transcriptomes generated by our group and others.
Juanjuan Liu, Gayani K. Nanayakkara, Yifan Lu, Fatma Saaoud, Keman Xu, Ying Shao, Bo Yuan, Shih‐Yu Hung, Haiyan Xiang, Xianwei Wang, Sadia Mohsin, Sheng Wu, Xiaolei Liu, Juncheng Wei, Zhengjie Zhou, Beata Kosmider, Mingui Fu, Laisel Martinez, Roberto Vazquez‐Padron, Wenhui Hu, Shuping Ge, Hong Wang, Xiaofeng Yang   +22 more
wiley   +1 more source

Doherty Amplifier for 433MHz [PDF]

, 2016
Im Rahmen der vorliegenden Arbeit wird die technische Konzeption eines Doherty Verstärkers vorgestellt. Es werden die Baugruppen 90-Hybridkoppler und Hauptverstärker in Microwave Office simuliert und berechnet.
Weixer, Rebekka
core  

Extension of Quasi-Load Insensitive Generalized Class-E Doherty Operation with Complex Load Trajectories

Chips
This paper extends the quasi-load insensitive (QLI) Class-E Doherty power amplifier (PA) design methodology to address Doherty PA combiners with complex load impedance trajectories.
Mehdi Otmani, Ayssar Serhan, Jean-Daniel Arnould, Estelle Lauga-Larroze, Pascal Reynier, Alexandre Giry   +5 more
doaj   +1 more source

A Current-Mode Multiphase Digital Transmitter With a Single-Footprint Transformer-Based Asymmetric Doherty Output Network

IEEE Open Journal of the Solid-State Circuits Society, 2023
This article introduces a current-mode multiphase digital transmitter with a single-footprint transformer-based asymmetric Doherty output network. The proposed multiphase architecture overcomes the bandwidth expansion associated with the polar power ...
Jay R. Sheth, Linsheng Zhang, Xiaochuan Shen, Vinay Iyer, Steven M. Bowers   +4 more
doaj   +1 more source

Harmonic load modulation in Doherty amplifiers [PDF]

Electronics Letters, 2008
In a Doherty amplifier employing a class-B main amplifier and a class-C peaking amplifier, harmonics are normally suppressed at each amplifier. If odd harmonic currents generated by the peaking amplifier are permitted to flow into the main amplifier, the loadline of the main amplifier is shaped in such a manner as to allow a lower supply voltage to be ...
Eccleston, K.W., Smith, K.J.I,, Mann, S.I., Gough, P.T.   +3 more
openaire   +2 more sources

Effect of age class on the survivorship and spatial movement patterns of headstarted Texas horned lizards soft‐released into an urban population

The Journal of Wildlife Management, EarlyView.
When compared to resident lizards of the corresponding age class, juvenile headstarted Texas horned lizards soft‐released into an urban population exhibited more favorable responses to short‐term translocation objectives (i.e., daily movement rates, home range sizes, and survival rates) than did conspecifics headstarted to the adult age class ...
Forrest P. Nielsen, Raymond W. Moody, Rebecca J. Snyder, Cameron R. Forehand, Katharine A. Marske, Hayley Lanier, Jessa L. Watters, Cameron D. Siler   +7 more
wiley   +1 more source

New Compact Load Network for Doherty Power Amplifiers Based on L-Section Matching Network of the Carrier Amplifier and Post-Matching Network

IEEE Access, 2023
This paper presents a new compact load network for Doherty power amplifiers (DPAs) with only two matching networks, such as an output matching network of the carrier amplifier, and the post-matching network (PMN), even in the presence of parasitic ...
Yifei Chen, Woojin Choi, Jaekyung Shin, Hyeongjin Jeon, Sooncheol Bae, Soohyun Bin, Sunwoo Nam, Young Chan Choi, Hyunuk Kang, Kang-Yoon Lee, Keum Cheol Hwang, Youngoo Yang   +11 more
doaj   +1 more source

Crisis Preparation, Capacity Building, and Community Resilience: Lessons From Maui

Nonprofit Management and Leadership, EarlyView.
ABSTRACT The 2023 Maui wildfires provide a unique context to explore the impact of nonprofit crisis networks taking a proactive role in community crisis response, leveraging resources, expertise, and networks. The Hawaiʻi Community Foundation (HCF) has been a key player in Maui's local response, providing critical support, mobilizing volunteers, and ...
Lauren Azevedo, Kaila Witkowski, Ratna Dougherty, Christa Remington   +3 more
wiley   +1 more source

Optimised Doherty power amplifier with auxiliary peaking cell

, 2018
The Doherty power amplifier has the most attractive architecture to improve the efficiency for amplifying a signal with a high peak-to-average power ratio.
Junghwan Son, Kim, B, Juyeon Lee
core   +1 more source