Results 21 to 30 of about 5,786,713 (305)

The Marine-Derived Fungus Clonostachys rosea, Source of a Rare Conjugated 4-Me-6E,8E-hexadecadienoic Acid Reducing Viability of MCF-7 Breast Cancer Cells and Gene Expression of Lipogenic Enzymes

Marine Drugs, 2015
A marine-derived strain of Clonostachys rosea isolated from sediments of the river Loire estuary (France) was investigated for its high lipid production. The fungal strain was grown on six different culture media to explore lipid production changes.
Ana Camila Dos Santos Dias, Nicolas Ruiz, Aurélie Couzinet-Mossion, Samuel Bertrand, Muriel Duflos, Yves-François Pouchus, Gilles Barnathan, Hassan Nazih, Gaetane Wielgosz-Collin   +8 more
doaj   +1 more source

High-speed pulse train amplification in semiconductor optical amplifiers with optimized bias current [PDF]

, 2017
In this paper, we have experimentally investigated the optimized bias current of semiconductor optical amplifiers (SOAs) to achieve high-speed input pulse train amplification with high gain and low distortion.
Ghafouri-Shiraz, H., Hou, Lianping, Kelly, Anthony E., Xia, Mingjun   +3 more
core   +1 more source

Experimental and Numerical Investigation of an Overheated Aluminum Droplet Wetting a Zinc-Coated Steel Surface

Metals, 2017
Wetting steel surfaces with liquid aluminum without the use of flux can be enabled by the presence of a zinc-coating. The mechanisms behind this effect are not yet fully understood.
Marius Gatzen, Peer Woizeschke, Tim Radel, Claus Thomy, Frank Vollertsen   +4 more
doaj   +1 more source

Full field measurement of guided ultrasonic waves using lensless digital holography and structure function analysis [PDF]

EPJ Web of Conferences
This work discusses the full-field measurement and characterization of guided ultrasonic waves (GUWs) on technical surfaces. The measurement is realized by a lensless digital holography approach with stroboscopic coherent illumination.
Gutiérrez-Cañas Pazos Beñat, Falldorf Claas, Koerdt Michael, May David, Bergmann Ralf B.   +4 more
doaj   +1 more source

Dry metal forming of high alloy steel using laser generated aluminum bronze tools

MATEC Web of Conferences, 2015
Regarding the optimization of forming technology in economic and environmental aspects, avoiding lubricants is an approach to realize the vision of a new green technology. The resulting direct contact between the tool and the sheet in non-lubricated deep
Freiße Hannes, Köhler Henry, Seefeld Thomas, Vollertsen Frank   +3 more
doaj   +1 more source

Mechanical Properties of High Strength Aluminum Alloy EN AW-7075 Additively Manufactured by Directed Energy Deposition

Metals, 2020
A manifold variety of additive manufacturing techniques has a significant positive impact on many industry sectors. Large components are often manufactured via directed energy deposition (DED) instead of using powder bed fusion processes (PBF).
Anika Langebeck, Annika Bohlen, Rüdiger Rentsch, Frank Vollertsen   +3 more
doaj   +1 more source

Verification bias [PDF]

BMJ Evidence-Based Medicine, 2018
This article is part of the Catalogue of Bias series. We present a description of verification bias, and outline its potential impact on research studies and the preventive steps to minimise its risk. We also present teaching slides in the online supplementary file.
O'Sullivan, J, Banerjee, A, Heneghan, C, Pluddemann, A   +3 more
openaire   +3 more sources

Scale-dependent Galaxy Bias [PDF]

, 2007
We present a simple heuristic model to demonstrate how feedback related to the galaxy formation process can result in a scale-dependent bias of mass versus light, even on very large scales.
Babul A, Coles P, Layzer D, Matarrese S, Mo H, Mo H, Peter Coles, Pirin Erdoğdu, Pritchard J R Furlanetto S R Kamionkowski M, Rees M J, Smith R E Scoccimarro R Sheth R K, Smith R E Scoccimarro R Sheth R K, Swanson M E C Tegmark M Blanton M Zehavi I   +12 more
core   +1 more source

An Experimental Approach for the Direct Measurement of Temperatures in the Vicinity of the Keyhole Front Wall during Deep-Penetration Laser Welding

Applied Sciences, 2020
The formation of defects such as pores during deep-penetration laser welding processes is governed by the melt pool dynamics and the stability of the vapor capillary, also referred to as the keyhole.
Ronald Pordzik, Peer Woizeschke
doaj   +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