Results 91 to 100 of about 3,936,282 (345)

Wind-shearing in gaseous protoplanetary disks

, 2010
One of the first stages of planet formation is the growth of small planetesimals and their accumulation into large planetesimals and planetary embryos. This early stage occurs much before the dispersal of most of the gas from the protoplanetary disk. Due
Hagai B. Perets, Ormel, Ruth Murray-Clay
core   +1 more source

Comparative Wear and Friction Analysis of Sliding Surface Materials for Hydrostatic Bearing under Oil Supply Failure Conditions

Advanced Engineering Materials, EarlyView.
Hydrostatic bearings excel in high‐precision applications, but their performance hinges on a continuous external supply. This study evaluates various material combinations for sliding surfaces to mitigate damage during supply failures or misalignment and to discover the most effective materials identified for enhancing the reliability and efficiency of
Michal Michalec, Lukáš Daněk, Jan Foltýn, Petr Svoboda, Carsten Gachot, Martin Hartl, Ivan Křupka   +6 more
wiley   +1 more source

Analisis Performa Link Stability dari Faktor Kecepatan untuk Dinamisasi Zona pada Zone Routing Protocol

Jurnal Rekayasa Elektrika, 2020
Zone dynamization is carried out in the Zone Routing Protocol to allow the adaptation of the routing protocol to VANET network conditions. Zone dynamization is accomplished by periodically updating the radius within a configured time period. The value of
Muhsin Bayu Aji Fadhillah, Radityo Anggoro, Arif Mudi Priyatno   +2 more
doaj   +1 more source

Stability radius and internal versus external stability in Banach spaces: an evolution semigroup approach

, 1999
In this paper the theory of evolution semigroups is developed and used to provide a framework to study the stability of general linear control systems.
Clark, Stephen, Latushkin, Yuri, Montgomery-Smith, Stephen J., Randolph, Tim   +3 more
core   +2 more sources

Trans‐Conductive Melt Pool Scaling and its Implications for Parameter Transfer in Laser Powder Bed Fusion for Metals with High Thermal Diffusivity

Advanced Engineering Materials, EarlyView.
Developing process parameters for the laser‐based Powder Bed Fusion of metals can be a tedious task. Based on melt pool depth, the process parameters are transferable to different laser scan speeds. For this, understanding the melt pool scaling behavior is essential, particularly for materials with high thermal diffusivity, as a change in scaling ...
Markus Döring, Matthias Gehring, Michael Schmidt   +2 more
wiley   +1 more source

Stability of Liquid Bridges between Unequal Disks under Zero-Gravity Conditions [PDF]

, 1995
The stability, of axisymmetric equilibrium shapes of a liquid bridge between two coaxial disks of different radii under zero-gravity conditions is investigated. The stability regions have been evaluated for different values of the ratio of the disk radii
Gomez, M., Perales Perales, José Manuel, Slobozhanin, L.A.   +2 more
core   +1 more source

Stability window and mass-radius relation for magnetized strange quark stars

, 2008
The stability of magnetized strange quark matter (MSQM) is investigated within the phenomenological MIT bag model, taking into account the variation of the relevant input parameters, namely, the strange quark mass, baryon density, magnetic field and bag ...
A Pérez Martínez, Cardall C Y, Duncan R, Hansel P, Kharzeev D E MacLerran L D Warriga H J, Nice D J, Ozel F, R González Felipe, Renxin Xu, Selyuzhenkov I V   +9 more
core   +1 more source

Analysis of Temperature and Stress Distribution on the Bond Properties of Hybrid Tailored Formed Components

Advanced Engineering Materials, EarlyView.
Hybrid materials enable high‐performance components but are challenging to process. This study explores an inductive heating concept with spray cooling for steel–aluminum specimens in a two‐step process including friction welding and cup backward extrusion.
Armin Piwek, Eduard Ortlieb, Caner‐Veli Ince, Julius Peddinghaus, Hendrik Wester, Johanna Uhe, Annika Raatz, Kai Brunotte   +7 more
wiley   +1 more source

Wind-shearing in gaseous protoplanetary disks and the evolution of binary planetesimals

, 2011
One of the first stages of planet formation is the growth of small planetesimals. This early stage occurs much before the dispersal of most of the gas from the protoplanetary disk. Due to their different aerodynamic properties, planetesimals of different
Andrews, Chiang, Hagai B. Perets, Murray-Clay, Naoz, Nesvorný, Noll, Paraskov, Parker, Perets, Perets, Ruth A. Murray-Clay, Shen, Weidenschilling, Whipple, Youdin   +15 more
core   +1 more source

Advances in Hybrid Icing and Frosting Protection Strategies for Optics, Lens, and Photonics in Cold Environments Using Thin‐Film Acoustic Waves

Advanced Engineering Materials, EarlyView.
This article provides a comprehensive overview of fundamentals and recent advances of transparent thin‐film surface acoustic wave technologies on glass substrates for monitoring and prevention/elimination of fog, ice, and frost. Fogging, icing, or frosting on optical lenses, optics/photonics, windshields, vehicle/airplane windows, and solar panel ...
Hui Ling Ong, Zhangbin Ji, Luke Haworth, Yihao Guo, Jaime del Moral, Stefan Jacob, Ana Borras, Agustin R. Gonzalez‐Elipe, Jikai Zhang, Jian Zhou, Glen McHale, Yong‐Qing Fu   +11 more
wiley   +1 more source