Results 21 to 30 of about 10,280,410 (290)

Mineral-and-energy clusters of the Russian Аrctic and prospects for expanding the outer boundary of its continental shelf

Руды и металлы, 2022
The project of organizing mineral-and-energy clusters with spatial conjugation of deposits of solid minerals (SM) and hydrocarbons (HC) localized on the continental margin and shelf of the Arctic zone of the Russian Federation is substantiated.
Alexander A. Kremenetsky, Igor G. Spiridonov, Alexey G. Pilitsyn, Ludmila I. Veremeeva   +3 more
doaj   +1 more source

Transposable elements

Current Biology, 2022
Transposable elements are known by many names, including 'transposons', 'interspersed repeats', 'selfish genetic elements', 'jumping genes', and 'parasitic DNA', but here we will refer to them simply as transposable elements. Many biologists will have heard of transposable elements and their ability to transpose (change position) within the genome. But
Hayward, Alexandre, Gilbert, Clement
openaire   +3 more sources

Towards Holistic System Models Including Domain-Specific Simulation Models Based on SysML

Systems, 2021
In the face of the rapid growth in the scale and complexity of multidisciplinary systems, being able to develop reliable systems under ever-faster changing and more individual market requirements is becoming more and more challenging.
Yizhe Zhang, Gregor Hoepfner, Joerg Berroth, Gerwin Pasch, Georg Jacobs   +4 more
doaj   +1 more source

Matrix Elements of Light Quarks [PDF]

, 2001
Lattice results for matrix elements of light quark operators are reviewed. The discussion is focused on recent theoretical progress and new numerical calculations which appeared after the Lattice 2000 Conference.Comment: 11 pages, 8 ...
Aoki, Aoki, Aoki, Aoki, Becirevic, Becirevic, Becirevic, Bernard, Bernard, Bernard, Bernard, Bernard, Bertolini, Bertolini, Blum, Bochicchio, Buras, Cirigliano, Cirigliano, Ciuchini, Ciuchini, D'Ambrosio, Dawson, Dawson, Donini, Donoghue, Donoghue, Donoghue, G. Martinelli, Glazov, Golterman, Golterman, Golterman, Golterman, Hambye, He, Hinds, Isgur, Isgur, Kaplan, Kaplan, Knecht, Knecht, Lellouch, Lellouch, Lüscher, Lüscher, Lüscher, Lüscher, Lüscher, Maiani, Maiani, Maiani, Martinelli, Martinelli, Martinelli, Martinelli, Masiero, Mikulec, Narayaran, Narayaran, Narayaran, Narayaran, Neuberger, Neuberger, Pallante, Pallante, Peris, Pokorski, Shamir, Sint, Truong   +71 more
core   +2 more sources

A Novel Reciprocating Tribometer for Friction and Wear Measurements with High Contact Pressure and Large Area Contact Configurations

Lubricants, 2021
There are many moving machine assemblies with conformal tribological contacts at very high contact pressures, e.g., sliding bearings, propeller shaft bearings and machine guideways.
Kim Berglund, Maria Rodiouchkina, Jens Hardell, Kalle Kalliorinne, Jens Johansson   +4 more
doaj   +1 more source

A smart friction control strategy enabled by CO2 absorption and desorption

Scientific Reports, 2019
Intelligent control of friction is an attractive but challenging topic and it has rarely been investigated for full size engineering applications. In this work, it is instigated if it would be possible to adjust friction by controlling viscosity in a ...
Jing Hua, Marcus Björling, Mattias Grahn, Roland Larsson, Yijun Shi   +4 more
doaj   +1 more source

Precise control of operating conditions in tribotesting with respect to trace humidity and contact temperature

MethodsX, 2021
Research in tribology are often connected to tribosystems operating in specific environments, where climate chambers are needed for tribotesting to resemble the environmental conditions in the real application.
Pontus Johansson, Kalle Kalliorinne, Pär Marklund, Marcus Björling   +3 more
doaj   +1 more source

A characterization of Dynkin elements [PDF]

, 2003
We give a characterization of the Dynkin elements of a simple Lie algebra. Namely, we prove that one-half of a Dynkin element is the unique point of minimal length in its N-region. In type A_n this translates into a statement about the regions determined
Gunnells, Paul E., Sommers, Eric
core   +5 more sources

CAD Representation of the Mullins Effect from the SEGE 80 Flexible Coupling Model

Engineering Proceedings
A Mullins simulation was conducted to analyze the effects of loading and unloading of a flexible-type SEGE coupling with a nominal torque of Tnom=80 Nm and maximum torque of Tmax=120 Nm.
Stefan Tenev, Ismail Mehmedov, Aleksandrina Bankova, Nina Nedeva, Stefan Stefanov, Rosen Hristov, Asparuh Atanasov, Plamen Nikolov, Svetoslav Petrov   +8 more
doaj   +1 more source

Modeling and Simulation of Cage Wear in Solid-Lubricated Rolling Bearings

Tribology Online, 2020
Cage not only separates the rolling elements but play an essential role of lubricant supplier in solid lubricated rolling bearings, thereby lubricating the rolling contacts.
Rahul Dahiwal, Stefan Thielen, Bernd Sauer   +2 more
doaj   +1 more source