Results 71 to 80 of about 9,922,164 (241)

Picosecond Laser Micro-welded Similar and Dissimilar Material [PDF]

, 2014
We report the successful picoseconds laser welding of a range of similar and dissimilar materials. The welds are formed by a tightly focused 1030 nm, 5.9 ps, 400 kHz laser system which induces microplasma formation.
Thomson, Robert R, Carter, Richard; id_orcid, Shephard, Jonathan D; id_orcid, Hand, Duncan Paul; id_orcid, Chen, Jianyong   +4 more
core  

Numerical Investigation of Enhanced High-Intensity Laser–Matter Interactions in Nanowire-Coated Conical Targets

Nanomaterials
Nanostructured targets are increasingly used as key components in high-power laser–matter interaction experiments due to their ability to substantially enhance laser absorption, increase ion/electron generation, or boost the secondary radiation (THz, X ...
Laura Ionel, Cristian Viespe
doaj   +1 more source

Using fluorescence fluctuation spectroscopy to quantify molecular dynamics within cells

FEBS Open Bio, EarlyView.
Microscopy techniques like fluorescence correlation spectroscopy (FCS) and number and brightness analysis (N&B) allow to quantify concentrations, diffusion rates, and oligomerization of fluorescently labeled molecules in the living cell. In this protocol the principles of how to set up these types of experiments are described including calibration ...
Mark A. Hink
wiley   +1 more source

PHYSICAL SEQUENTIAL MODELS FOR LASER CUTTING

Nonconventional Technologies Review, 2016
Laser cutting of composite materials requires improving physical models applied to laser cutting process. In setting of machining parameters knowledge of physical phenomena occurring in the material plays important role.
Remus Boboescu, Richard Herman
doaj  

Material-specific beam-plume interactions during deep-penetration laser welding of stainless steel, aluminum, and copper

Journal of Advanced Joining Processes
During deep-penetration laser welding, a hot vapor plume is emitted from the keyhole which, on cooling, condenses into a particle cloud that surrounds the weld zone.
Johannes Wahl, Christian Frey, John Powell, Michael Haas, Simon Olschok, Uwe Reisgen, Christian Hagenlocher, Thomas Graf   +7 more
doaj   +1 more source

Peripheral Neutrophil Activation and Extracellular Trap Formation in Amyotrophic Lateral Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
Markers of neutrophil activation are increased in plasma during ALS, and markers of NET formation associate with ALS survival. ABSTRACT Objectives Peripheral neutrophil levels in amyotrophic lateral sclerosis (ALS) inversely correlate with survival, suggesting a role for neutrophils in disease progression.
Lillia A. Baird, Haley McQuown, Jihyun Park, Samuel J. Teener, Ian F. Webber‐Davis, Andrew D. Carter, Dae‐Gyu Jang, Eva L. Feldman, Stephen A. Goutman, Benjamin J. Murdock   +9 more
wiley   +1 more source

Laser-Induced Damage Features and Flow Interference of Coating Materials in Ma=6 Airflows

气体物理
Aimed at the new application scenario of laser, a test platform was established to study the coating material da-mage features induced by the interaction of the Ma=6 tangential air flow and the continuous laser irradiation.
Jian LIN, Lili LIU, Hongbo LU, Shuai WEN, Haiyan LI, Hongzhi LU, Song FU   +6 more
doaj   +1 more source

Incidence, Risk Factors and Management of Adverse Events in Contemporary Real‐World Care of Children with Juvenile Idiopathic Arthritis

Arthritis Care &Research, Accepted Article.
Objective We describe the frequency, risk factors, severity, and management of actionable and serious adverse events (AAE and SAE) in children with newly diagnosed Juvenile Idiopathic Arthritis (JIA) in Canada. Methods We enrolled patients within 3 months of JIA diagnosis in the Canadian Alliance of Pediatric Rheumatology Investigators (CAPRI) Registry,
Bashayer Alnuaimi, Roberta A. Berard, Jean‐Philippe Proulx‐Gauthier, Heinrike Schmeling, Michelle Batthish, Gilles Boire, Adam M. Huber, Dax G. Rumsey, Jaime Guzman, Gaëlle Chédeville, The CAPRI registry Investigators   +10 more
wiley   +1 more source

Physical twin of an industrial quad-laser powder bed fusion machine for high-speed multi-modal sensing measurements

Materials & Design
To faithfully capture the laser-material interaction and subsequent process dynamics during the industrial laser powder bed fusion process, we developed a Quad-laser in situ and operando process replicator (or the Quad-ISOPR) – a physical twin that ...
Samy Hocine, Sebastian Marussi, Andrew Farndell, Elena Ruckh, Rubén Lambert-Garcia, Anna C.M. Getley, Kwan Kim, Nick Jones, Maureen Fitzpatrick, Marta Majkut, Alexander Rack, Peter D. Lee, Chu Lun Alex Leung   +12 more
doaj   +1 more source

β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations

Advanced Biology, Volume 9, Issue 3, March 2025.
Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio, B. Spedicato, G. Corallo, A. Inguscio, M. Greco, D. Musarò, D. Vergara, A. F. Muro, G. De Sabbata, L. R. Soria, N. Brunetti Pierri, M. Maffia   +11 more
wiley   +1 more source