Results 51 to 60 of about 13,955,013 (337)

Theoretical analysis of the focusing of acoustic waves by two-dimensional sonic crystals [PDF]

, 2002
Motivated by a recent experiment on acoustic lenses, we perform numerical calculations based on a multiple scattering technique to investigate the focusing of acoustic waves with sonic crystals formed by rigid cylinders in air.
Bikash C. Gupta, C. Rubio, D. Caballero, D. Caballero, E. Yablonovitch, E.R. Brown, E.R. Brown, E.R. Brown, F. Cervera, H. Kosaka, J. Martorell, J.C. Chen, J.P. Dowling, J.V. Sánchez-Pérez, L. Sanchis, M. Sigalas, M.S. Kushwaha, M.S. Kuswahs, P. Halevi, P. Halevi, P. Rigby, P.W. Evans, R. Martínez-Sala, S. Gupta, S.-Y. Lin, S.-Y. Lin, T.F. Krauss, T.F. Krauss, V. Twersky, W.M. Robertson, Y.Y. Chen, Y.Y. Chen, Zhen Ye   +32 more
core   +1 more source

Exploiting disorder for perfect focusing

, 2009
We demonstrate experimentally that disordered scattering can be used to improve, rather than deteriorate, the focusing resolution of a lens. By using wavefront shaping to compensate for scattering, light was focused to a spot as small as one tenth of the
A Derode, A Derode, A Ishimaru, A. Lagendijk, A. P. Mosk, CK Hayakawa, EG van Putten, G Bartal, G Lerosey, GJ Foschini, I. M. Vellekoop, IM Vellekoop, IM Vellekoop, JW Goodman, M Tanter, MI Stockman, P Sebbah, R Pappu, RK Tyson, SH Simon, Z Yaqoob   +20 more
core   +2 more sources

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Anisotropic Metasurface With Asymmetric Propagation of Electromagnetic Waves and Enhancements of Antenna Gain

IEEE Access, 2021
An anisotropic metasurface that performs a reflectarray and transmitarray on each side is proposed. The proposed configuration comprises $15\times15$ unit cells that consist of polarization converters and a polarization filter.
Chia-Chi Chung, Fei-Peng Lai, Sheng-Xue Huang, Yen-Sheng Chen   +3 more
doaj   +1 more source

Multimode interference devices for focusing in microfluidic channels [PDF]

, 2011
Low-cost, compact, automated optical microsystems for chemical analysis, such as microflow cytometers for identification of individual biological cells, require monolithically integrated microlenses for focusing in microfluidic channels, to enable high ...
Ateya, Camou, Dongre, Godin, Hamish C. Hunt, Hunt, James S. Wilkinson, Moreno, Seo, Soldano   +9 more
core   +1 more source

Why and When Are Evidence‐Based Interventions Adopted in Paediatric Supportive Care? A Qualitative Exploration of the Determinants of Photobiomodulation Implementation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie, Kara A. Gray‐Burrows, Peter F. Day, Bob Phillips, Carl A. Thompson   +4 more
wiley   +1 more source

Focusing on Project Metrics [PDF]

, 2008
{Excerpt} The need to ensurethat scarce fundingis applied to effective projects is a goal shared by all. Focusing on common parameters of project performance is a means to that end.
Serrat, Olivier
core   +1 more source

On deflection fields, weak-focusing and strong-focusing storage rings for polar molecules

, 2011
In this paper, we analyze electric deflection fields for polar molecules in terms of a multipole expansion and derive a simple but rather insightful expression for the force on the molecules. Ideally, a deflection field exerts a strong, constant force in
Bethlem, Hendrick L., de Nijs, Adrian J.
core   +1 more source

Dexamethasone for Chemotherapy‐Induced Nausea and Vomiting Prevention in Pediatric Patients: International Consensus

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background An international Delphi panel of experts developed consensus statements to delineate the circumstances where the risks of dexamethasone as an antiemetic do and do not outweigh its benefits. Procedure Experts in supportive care of pediatric patients were invited to participate.
Negar Shavandi, Paula D. Robinson, Shana Jacobs, L. Lee Dupuis, the International Pediatric Dexamethasone Panel, Sameer Bakhshi, Tiene Bauters, Eva Brack, Simone Cesaro, Claire Fosbrook, Jason Freedman, Tamara MacDonald, Eloise Neumann, Venkatraman Radhakrishnan, Rod Rassekh, Florian Slimano, Johnathan Soggee, Joel Thompson, Marianne van de Wetering, Milena Villarroel, Jasper Wong   +20 more
wiley   +1 more source

Focusing Mirror with Tunable Eccentricity

, 2013
We present a new kind of varifocal mirror with independently adjustable curvatures in the major directions. For actuation we use two stacked piezo bending actuators with crossed in-plane polarization.
Brunne, Jens, Stürmer, Moritz, Wallrabe, Ulrike, Wapler, Matthias C.   +3 more
core   +1 more source