Results 31 to 40 of about 16,450,513 (295)

Using hydrogen isotopes of freshwater fish tissue as a tracer of provenance

Ecology and Evolution, 2016
Hydrogen isotope (δ2H) measurements of consumer tissues in aquatic food webs are useful tracers of diet and provenance and may be combined with δ13C and δ15N analyses to evaluate complex trophic relationships in aquatic systems. However, δ2H measurements
David X. Soto, Keith A. Hobson, Leonard I. Wassenaar   +2 more
doaj   +1 more source

Analytical Solutions of Viscoelastic Nonlocal Timoshenko Beams

Mathematics, 2022
A consistent nonlocal viscoelastic beam model is proposed in this paper. Specifically, a Timoshenko bending problem, where size- and time-dependent effects cannot be neglected, is investigated.
Francesco Paolo Pinnola, Raffaele Barretta, Francesco Marotti de Sciarra, Antonina Pirrotta   +3 more
doaj   +1 more source

Tunable NaBH4 Nanostructures Revealing Structure‐Dependent Hydrogen Release

Advanced Energy & Sustainability Research, 2021
Borohydrides are promising candidates for hydrogen storage and generation assuming these can be tuned to reversibly deliver hydrogen under practical conditions.
Muhammad Saad Salman, Aditya Rawal, Kondo-Francois Aguey-Zinsou   +2 more
doaj   +1 more source

Entropy and Effective Support Size [PDF]

Entropy, 2006
Notion of Effective size of support (Ess) of a random variable is introduced. A smallset of natural requirements that a measure of Ess should satisfy is presented. The measure withprescribed properties is in a direct (exp-) relationship to the family of R ́nyi’s α-entropies which eincludes also Shannon’s entropy H. Considerations of choice of the value
openaire   +3 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

Laser Textured Surfaces for Mixed Lubrication: Influence of Aspect Ratio, Textured Area and Dimple Arrangement

Lubricants, 2017
Unidirectional sliding experiments with polished and laser textured steel surfaces were carried out to investigate the effects of different textured area densities, aspect ratios and dimple arrangements.
Johannes Schneider, Daniel Braun, Christian Greiner   +2 more
doaj   +1 more source

Size‐dependent static bending of anisotropic rectangular nanoplates with cubic crystal structures

Micro & Nano Letters, 2021
Here, size‐dependent static bending of anisotropic rectangular nanoplates is investigated based on surface elasticity theory. The governing equations of the nanoplate are derived considering the most common boundary conditions in MEMS/NEMS.
Abbas Assadi, Hossein Najaf, Mostafa Nazemizadeh   +2 more
doaj   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan, Michael Abele, Calogero Virgone, Michaela Kuhlen, Ricardo Lopez‐Almarez, Tal Ben‐Ami, Ewa Bien, Maja Cesen, Malgorzata A. Krawczyk, Andrea Ferrari, Gianni Bisogno, Yves Reguerre, Dominik T. Schneider, Louise Galmiche, Jorg Fuchs, Sarah Braungart, Bilgehan Yalcin, Ines B. Brecht, Daniel Orbach   +18 more
wiley   +1 more source

When Scale Matters: Size‐Dependent Mechanics of Architected Lattices for Implants and Beyond

Small Structures
Architected materials offer bright possibilities to achieve specialized mechanical properties that are not possible with most engineering and natural materials. For example, they allow the design of personalized metal medical implants with reduced stress
H. C. V. M. Shyam Veluvali, Sidharth Beniwal, Grigor Nika, Joep Kraeima, Patrick R. Onck, Anastasiia Oleksandrivna Krushynska   +5 more
doaj   +1 more source

Stiffening Effect of Bolt-On Transducers on Strain Measurements

Latin American Journal of Solids and Structures
The strain of a structural element is often measured indirectly by determining the strain of a transducer that is supposed to follow the deformation of the element perfectly, and with negligible interaction, around the mounting point.
Mauro Borri-Brunetto, Marco Alessio, Monica Barbero, Fabrizio Barpi, Valerio De Biagi, Oronzo Pallara   +5 more
doaj   +1 more source