Results 41 to 50 of about 110,257 (303)

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

Management and relocation of nests of Podocnemis expansa (Schweigger, 1812) (Testudines, Podocnemididae) on the Crixás-Açu river, Brazil

Brazilian Journal of Biology
Podocnemis expansa nests in the sandbanks of the Crixás-Açu River in central Brazil during the dry season. With the return of the rainy season, the river banks are once again inundated, flooding nests and eggs and drowning hatchlings.
AS. Gomes, PD. Ferreira Júnior
doaj   +1 more source

Molecular Studies of Piscine Hatching Enzymes: Choriolysin gene structure and expression. [PDF]

, 2007
L’elaborato mostra gli ultimi 558 nucleotidi dei 786 totali che compongono la sequenza genica (cDNA), trovati con le tecniche di Polymerase Chain Reaction (PCR) e Rapid Amplification of cDNA ends (RACE) -PCR.
Orsetti, Valeria
core  

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Effect of temperature on hatching and growth of cuban gar (Atractosteus tristoechus) larvae / Efecto de la temperatura en la eclosión y el crecimiento de las larvas de manjuarí (Atractosteus tristoechus)

Ecosistemas y Recursos Agropecuarios, 2014
Hatching success, growth, development and survival of Cuban gar (Atractosteus tristoechus) larvae were examined at different temperatures (26, 28 and 30 °C) up to 18 days after hatching (DAH).
Yamilé Comabella, Andrés Hurtado, Javier Canabal, Tsai García-Galano   +3 more
doaj  

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

Matrix Metalloproteinase 13 Activity is Required for Normal and Hypoxia-Induced Precocious Hatching in Zebrafish Embryos

Journal of Developmental Biology, 2020
Hypoxia induces precocious hatching in zebrafish, but we do not have a clear understanding of the molecular mechanisms regulating the activation of the hatching enzyme or how these mechanisms trigger precocious hatching under unfavorable environmental ...
Christopher D. Small, Megan el-Khoury, Ghislain Deslongchamps, Tillmann J. Benfey, Bryan D. Crawford   +4 more
doaj   +1 more source

Hatching: Piranesi & Tafuri [PDF]

, 2018
This book presents an interpretation and a critical design proposal, it was inspired by Manfredo Tafuri’s essay The Wicked Architect: G.B. Piranesi, Heterotopia and the Voyage.
Watson, V.A.
core  

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Use of weed plants against Meloidogyne incognita in spinach involves reduction of gall disease from roots

Acta Agriculturae Scandinavica. Section B, Soil and Plant Science, 2021
In the present study, weed plants viz., Calotropis procera, Ricinus communis, Lantana camara, Achyranthes aspera, Wedelia chinensis, and Colocasia esculenta were evaluated against Meloidogyne incognita affecting spinach.
Mudassara Hasan, Faheem Ahmad, Pieter Malan, Hera Nadeem, Mohd Asif, Amir Khan, Mansoor A. Siddiqui   +6 more
doaj   +1 more source