Results 81 to 90 of about 23,834 (285)

Numerical modeling of the power losses in geared transmissions: Windage, churning and cavitation simulations with a new integrated approach that drastically reduces the computational effort

open access: yesTribology International, 2016
Abstract Energy savings and efficient design are the new global trends. Gears are the main components in many applications like vehicle transmissions, industrial gearboxes etc. and although they are already highly efficient, there is still margin for improvement.
CONCLI, FRANCO, GORLA, CARLO
openaire   +1 more source

Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation

open access: yesAdvanced Materials, EarlyView.
Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju   +7 more
wiley   +1 more source

Use of Logistic Regression for Understanding and Prediction of Customer Churn in Telecommunications [PDF]

open access: yesStatistika: Statistics and Economy Journal, 2019
Customer churn, loss of customers due to switch to another service provider or non-renewal of commitment, is very common in highly competitive and saturated markets such as telecommunications.
Jan Manďák, Jana Hančlová
doaj  

Numerical modeling of the churning power losses in planetary gearboxes: An innovative partitioning‐based meshing methodology for the application of a computational effort reduction strategy to complex gearbox configurations

open access: yesLubrication Science, 2017
AbstractThanks to the recent developments in the computer science, simulations are becoming an increasingly widespread approach that can help the designers in the development of new products. In the specific field of gearboxes, simulations are used mainly for structural evaluations.
Concli, Franco, Gorla, Carlo
openaire   +1 more source

Design comparison of cesium and potassium vapor turbine-generator units for space power [PDF]

open access: yes
Design comparison of cesium and potassium vapor turbogenerator units for space power ...
Burton, D. W.   +3 more
core   +1 more source

Roadmap to Precision 3D Printing of Cellulose: Rheology‐Guided Formulation, Fidelity Assessment, and Application Horizons

open access: yesAdvanced Materials Technologies, EarlyView.
This critical review presents a comprehensive roadmap for the precision 3D printing of cellulose. Quantitative correlations link ink formulation and rheological properties to print fidelity and final material performance. This framework guides the development of advanced functional materials, from biomedical scaffolds to electromagnetic shielding ...
Majed Amini   +3 more
wiley   +1 more source

2010 State New Economy Index [PDF]

open access: yes, 2010
Measures states' economic structures on twenty-six indicators of their competitiveness in the New Economy: the prominence of knowledge jobs, globalization, economic dynamism, transformation to a digital economy, and technological innovation ...

core  

Nanoporous Microelectrodes for Neural Electrophysiology Recordings in Organotypic Culture

open access: yesAdvanced Materials Technologies, EarlyView.
The highly porous microelectrodes have been designed and printed on culture membranes, allowing to record electrophysiological neural activity for rodent brain slices. To keep the biocompatible nanoporous structure, the microelectrodes and insulative layer are fabricated on the bottom of culture membranes with only small connector pads added on the top.
Petro Lutsyk   +3 more
wiley   +1 more source

A Review on Microreactor Design for Effective Fischer–Tropsch Process Intensification

open access: yesAdvanced Materials Technologies, EarlyView.
Design strategies for effective Fischer–Tropsch process intensification are summarized based on experimental and simulation experiences. Recommendations for catalyst loading of packed‐bed and wash‐coated microchannel, microtube, micromonolith, and microstructured reactors are discussed.
Yangjun Wei   +5 more
wiley   +1 more source

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