Results 81 to 90 of about 3,072 (244)

Modelling the response rate of Apache web server using extreme value theory

Scientific African
Delay in response is associated with servers used in processing data particularly when there is large number of users. Consequently, the performance of web servers plays a crucial role in the digital ecosystem, necessitating analysing their tail ...
Hamed Akintayo Rafiu, Olumide Sunday Adesina, Kayode Samuel Adekeye   +2 more
doaj   +1 more source

Towards Defect Phase Diagrams: From Research Data Management to Automated Workflows

Advanced Engineering Materials, EarlyView.
A research data management infrastructure is presented for the systematic integration of heterogeneous experimental and simulation data required for defect phase diagrams. The approach combines openBIS with a companion application for large‐object storage, automated metadata extraction, provenance tracking and federated data access, thereby supporting ...
Khalil Rejiba, Sang‐Hyeok Lee, Christina Gasper, Martina Freund, Sandra Korte‐Kerzel, Ulrich Kerzel   +5 more
wiley   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Equilibrium Strategies in an M_n/M/1 Queue with Server Breakdowns and Delayed Repairs

Mathematics
Ophthalmic units use sophisticated equipment to enable accurate diagnosis of refractive errors. This equipment is subject to two types of breakdowns.
Yingying Pan, Jingchuan Zhang, Zaiming Liu   +2 more
doaj   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

An M/G/1 Queue with Server Breakdown and Multiple Working Vavation

, 2015
This paper deals with the steady state behavior of an M=G=1 multiple working vacation queue with server breakdown. The server works with different service times rather than completely stopping service during a vacation.
Bala Murugan, S. P., Santhi, K.
core  

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

Breakdown localisation in a pulsed DC electrode system

, 2020
Breakdown localisation is an important diagnostic for studies of vacuum arcs in high electromagnetic field systems such as DC electrodes and radio frequency (RF) accelerating structures.
Calatroni, Sergio, Stragier, Xavier, Kandratsyeu, Aleh, Wuensch, Walter, Profatilova, Iaroslava, Rodriguez Castro, Enrique   +5 more
core   +1 more source

Evaluation of soluble junctional adhesion molecule-A as a biomarker of human brain endothelial barrier breakdown [PDF]

, 2010
Background: An inducible release of soluble junctional adhesion molecule-A (sJAM-A) under pro-inflammatory conditions was described in cultured non-CNS endothelial cells (EC) and increased sJAM-A serum levels were found to indicate inflammation in non ...
Romero, Ignacio, Deiß Annika, Deiß, Annika, Buttmann, Mathias, Weksler Babette, Rieckmann, Peter, Ignacio Romero, Mathias Buttmann, Prochaska, Jürgen, Couraud, Pierre-Olivier, Jürgen Prochaska, Haarmann, Axel, Peter Rieckmann, Buttmann Mathias, Weksler, Babette, Axel Haarmann, Stoll, Guido, Najbauer, Joseph, Pierre-Olivier Couraud, Annika Deiss, Couraud Pierre-Olivier, Prochaska, Juergen, Stoll Guido, Guido Stoll, Förch, Christian, Romero Ignacio, Foerch, Christian, Prochaska Jürgen, Christian Foerch, Rieckmann Peter, Babette Weksler, Foerch Christian, Haarmann Axel   +32 more
core   +1 more source

Performance Optimization of M/M/1 Queues with Working Vacations and Server Breakdowns in Wireless Communication Systems

Journal of Telecommunications and Information Technology
This paper presents a unified analytical and simulation framework for optimizing the performance of M/M/1 queueing systems that incorporate differentiated working vacations, server breakdowns, and customer balking behavior.
S. Muthukumar, J. Ebenesar Anna Bagyam, K. Basarikodi   +2 more
doaj   +1 more source