Results 81 to 90 of about 22,855 (300)

"Finite element analysis and validation of nuclear equipment personnel airlock sealing structure"

Hecheng xiangjiao gongye
The Mooney-Rivlin model was used to perform finite element analysis of sealing structure of double-channel O-ring seal for personnel airlock in nuclear power plant, the von Mises stress and contact stress of the O-ring seal at different compression size ...
SHEN Yong-jian, SHEN Guang-yao, XU Dao-ping, ZHANG Zhen-yu, CHEN Xiu-ming
doaj   +1 more source

The Use and Effect of Attic Seals [PDF]

Classical Philology, 1908
The use of seals was very common not only in Greece but throughout the Orient, even in remote antiquity. In Zakro several hundreds of clay seal impressions which belong to the Mycenaean period were found.' "These may have been attached to bales of goods and were preserved as a record of commercial transactions."2 There is no evidence for the use of ...
openaire   +1 more source

Optimization of the Production of Rubber Compounds Using Mathematical Models

Advanced Engineering Materials, EarlyView.
Rubber compounds were mixed in a batch internal mixer, and symbolic regression was used to derive mathematical models linking recipe and process parameters to ram path, torque, and mixing quality (incorporation, dispersion, distribution). Subsequent optimization with evolutionary algorithms identified operating conditions that reduce specific energy ...
Anke Bardehle, Andreas Limper, Ulrich Giese, Carlos Lucke, Mario Beiner, Christoph Gögelein, Lisa Leuchtenberger‐Engel, Christian Hopmann   +7 more
wiley   +1 more source

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

Advanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho, M. Naeem, T. H. C. Costa, M. S. Libório, J. C. A. Queiroz, C. B. B. Luna, R. R. M. Sousa, P. S. Vieira, E. M. Araújo   +8 more
wiley   +1 more source

Nondestructive Testing of Welded Composite Metal Foams

Advanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva, Aman Kaushik, Afsaneh Rabiei   +2 more
wiley   +1 more source

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

Advanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca, Patrick Villechaise, Malik Durand, Arnaud Longuet, Florent Coudon, Loïc Signor, Julien De Jaeger, Dominique Eyidi, Nathalie Bozzolo, Jonathan Cormier   +9 more
wiley   +1 more source

Effectiveness of marginal sealing of temporary restorative materials

, 2023
INTRODUCTION: Temporary restorative materials are an important prerequisite for success of endodontic treatment, because their main task is to close the cavity and prevent microleakage that is to disable fluid percolation and penetration of ...
Popović-Bajić, Marijana, Ajdini, Maja, Manojlović, Dragica, Stašić, Jovana, Jovanović-Medojević, Milica, Opačić-Galić, Vanja   +5 more
core  

Design and Experimental Test of a self-sealing component for reciprocal motion of MR fluid based device

Results in Engineering
This research presents a novel approach to sealing components by proposing an optimized design and experimental evaluation of a magneto-rheological fluid (MRF) sealing component for reciprocal motion, with a specific focus on MR dampers.
Van Cuong Vo, Hai Zy Zy Le, Qui Duyen Do, Quoc-Hung Nguyen   +3 more
doaj   +1 more source

“Energy devices in gynecological laparoscopy – Archaic to modern era”

Gynecology and Minimally Invasive Therapy, 2017
The introduction of newer vessel sealing systems has revolutionized techniques of hemostasis during laparoscopic surgery. These devices allow for rapid sequential tissue and vessel sealing, coagulation, and transection. Despite of widespread use of newer
Amruta Jaiswal, Kuan-Gen Huang
doaj   +1 more source

Enhancing Bubble Removal in Geometry‐Optimized Electrodes

Advanced Engineering Materials, EarlyView.
3D‐printed lattice electrodes outperform stochastic foams in alkaline water electrolysis despite 20%–25% lower surface area. Straight flow channels generate Venturi‐like bubble entrainment, suppressing gas accumulation that renders foam interiors electrochemically inactive.
Florian Wiesner, Peter Förster, Alexander Limper, Anselm Brodersen, Matthias Wessling, John Linkhorst   +5 more
wiley   +1 more source