Results 111 to 120 of about 856,870 (289)

RF design and optimization of the high-energy linac for the FCC-ee injector complex

Physical Review Accelerators and Beams
The high-energy linac of the Future Circular Collider electron-positron (FCC-ee) injector complex requires high-performance rf accelerating structures to efficiently accelerate beams up to 20 GeV while ensuring operational stability.
A. Kurtulus, A. Grudiev, A. Latina, S. Bettoni, P. Craievich, J.-Y. Raguin   +5 more
doaj   +1 more source

Beam loading

, 2013
We begin by giving a description of the radio-frequency generator-cavity-beam coupled system in terms of basic quantities. Taking beam loading and cavity detuning into account, expressions for the cavity impedance as seen by the generator and as seen by ...
Gamp, Alexander
core   +1 more source

Hepatopulmonary syndrome in children and adolescents with portal hypertension in Brazil: A multicenter study

Journal of Pediatric Gastroenterology and Nutrition, EarlyView.
Abstract Objectives To describe the clinical and laboratory characteristics and outcomes of pediatric hepatopulmonary syndrome (HPS) secondary to portal hypertension (PH) in Brazil. Methods Fifty‐four pediatric patients diagnosed with PH and HPS according to the European Respiratory Society criteria were included in this multicenter retrospective study.
Leticia Drumond Alberto, Eleonora Druve Tavares Fagundes, Adriana Teixeira Rodrigues, Thaís Costa Nascentes Queiroz, Gustavo Valverde de Castro, Carlos Oscar Kieling, Sandra Maria Gonçalves Vieira, Natália Lamounier dos Martires Guerra, Natascha Silva Sandy, Gilda Porta, Irene Kazue Miura, Maria Ângela Bellomo Brandão, Gabriel Hessel, Adriana Maria Alves de Tommaso, Alexandre Rodrigues Ferreira   +14 more
wiley   +1 more source

Metamaterial Polarization Converter Analysis: Limits of Performance

, 2012
In this paper we analyze the theoretical limits of a metamaterial converter that allows for linear-to- elliptical polarization transformation with any desired ellipticity and ellipse orientation.
A. Drezet, A. Pors, A. Roberts, A.C. Strikwerda, A.C. Strikwerda, Andrei Andryieuski, Andrei V. Lavrinenko, C. Sabah, D. Molter, D.-H. Kwon, Dmitry L. Markovich, F. Wang, J. Hao, J. Hao, J.B. Masson, J.K. Gansel, J.Y. Chin, J.Y. Chin, M. Mutlu, M. Tonouchi, Maksim Zalkovskij, P. Weis, P.U. Jepsen, R. Singh, Radu Malureanu, S.C Saha, S.X. Li, T. Arikawa, T. Kleine-Ostmann, T. Li, W. Sun, X.G. Peralta, Y. Zhao   +32 more
core   +1 more source

Brazilian Society of Surgical Oncology: Guidelines and Consensus Statement for Palliative Surgery in Oncology

Journal of Surgical Oncology, EarlyView.
ABSTRACT Background and Objective Palliative surgery in oncology aims to relieve symptoms, improve quality of life, and respect patient autonomy in advanced cancer. This study aimed to develop evidence‐based recommendations for safely indicating and performing palliative surgeries in Brazil, considering clinical, ethical, and multidisciplinary aspects.
Audrey Cabral Ferreira de Oliveira, Jordana Henz Hammes, Isabela Maria Alves de Almeida Oliva, Lara Andrade Mendes Mangieri, Ronald Enrique Delgado Bocanegra, Marcos Gonçalves Adriano Junior, Ana Caroline Fonseca Alves, Eliel Oliveira de Araujo, Jairo Cerqueira de Almeida Teixeira, Patricia Isabel Bahia Mendes Freire, Larissa de Jesus Almeida, Raquel Lacerda Dantas de Farias, Heládio Feitosa e Castro Neto, Alexandre Ferreira Oliveira, Reitan Ribeiro, Rodrigo Nascimento Pinheiro   +15 more
wiley   +1 more source

862: Circular shunt physiology in recipient twins is associated with increased risk for postnatal right ventricular outflow tract obstruction [PDF]

, 2015
Ramen H. Chmait, Jay D. Pruetz, Jodie K. Votava‐Smith, Lisa M. Korst, Arlyn Llanes, Hikmat R. Chmait   +5 more
openalex   +1 more source

The Atmosphere Explorer power subsystem [PDF]

The design and operation of the power subsystem for the Atmospheric Explorer spacecraft are discussed. The additional functional redundancy which was added in several component areas to improve the overall subsystem reliability is analyzed.
Bacher, J., Callen, P., Obenschain, A.
core   +1 more source

Circular-geometry oscillators [PDF]

, 2004
5.3GHz 0.18μm CMOS circular-geometry oscillator exploits high Q of slab inductors. The oscillator draws 10mA from 1.4V with a phase noise of -147.3dBc/Hz at 10MHz offset. A second 5.4GHz circular-geometry VCO has a tuning range of 8% with phase noise of -
Aparicio, R., Hajimiri, A.
core   +1 more source

Pre‐ and Post‐Interventional Hemodynamic Characterization of the Femoropopliteal Artery Using Vector Flow Imaging in Peripheral Arterial Occlusive Disease

Journal of Ultrasound in Medicine, EarlyView.
Objectives The femoropopliteal (FP) artery is the most frequently revascularized segment in peripheral artery disease (PAD), followed by the iliac segment. Wall shear stress (WSS) is a key local factor implicated in both atherosclerotic plaque formation and restenosis after angioplasty.
Jan Lukas Prüser, Gisela Winkelbauer, Wulf Dieker, Abdulkader Adler, Klaus Amendt, Martin Sigl   +5 more
wiley   +1 more source

A Rare Pulmonary Arterio-venous Malformation with Circular Shunting Due to Inferior Phrenic Artery Supply with Pulmonary Venous Drainage: a Case Report [PDF]

, 2021
James Whiteley Dobson, Edem Barnor-Ahiaku, Sapna Puppala, Simon McPherson   +3 more
openalex   +1 more source