Results 31 to 40 of about 109,132 (281)

Optimization of ferroelectricity and endurance of hafnium zirconium oxide thin films by controlling element inhomogeneity

open access: yesJournal of Advanced Ceramics
Ferroelectric thin films based on HfO2 have garnered increasing attention worldwide, primarily due to their remarkable compatibility with silicon and scalability, in contrast to traditional perovskite-structured ferroelectric materials.
Fei Yan   +5 more
doaj   +1 more source

Dynamic Simulation for Diffusion of Satellite Detached Particles in Various Orbits [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2009
In this article the simulation of explosion and diffusion of debris consequent on explosion, in the space are studied. This method is simulated by the introduced code and the results are closely checked in accordance with different operational situations
E. Shafiee-Nejhad   +3 more
doaj  

Observational data and orbits of the asteroids discovered at the Baldone Observatory in 2015–2018

open access: yesOpen Astronomy, 2020
This paper is devoted to the discovery of 37 asteroids at the Baldone Astrophysical Observatory (MPC 069) from 2015 to 2018, and one of dynamically interesting Mars-crosser (MC) observed at the Baldone Astrophysical Observatory, namely 2008 LX16.
Wlodarczyk Ireneusz   +2 more
doaj   +1 more source

Uncertainty quantification of thermal barrier coatings lifetime on rotating turbine blades considering chemo-thermo-mechanically coupling failure

open access: yesMaterials & Design
The lifetime prediction of thermal barrier coatings (TBCs) on rotating turbine blades remains a significant challenge due to the complex service environment and multi-physics failure mechanisms.
Weiliang Yan   +6 more
doaj   +1 more source

Deformations of circle-valued Morse functions on 2-torus

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2021
In this paper we give an algebraic description of fundamental groups of orbits of circle-valued Morse functions on T2 with respect to the action of the group of diffeomorphisms of ...
Bohdan Feshchenko
doaj   +1 more source

Orbital Angiolipoma [PDF]

open access: yesArchives of Ophthalmology, 1988
Successful resection of an orbital angiolipoma in a 3-year-old child was performed. To our knowledge, this is the first report of angiolipoma in this site.
Feinfield, Robert E.   +2 more
openaire   +5 more sources

Displaced periodic orbits with low-thrust propulsion [PDF]

open access: yes, 2009
Solar sailing and solar electric technology provide alternative forms of spacecraft propulsion. These propulsion systems can enable exciting new space-science mission concepts such as solar system exploration and deep space observation.
Simo, Jules, McInnes, Colin R.
core   +3 more sources

On the stability of approximate displaced lunar orbits [PDF]

open access: yes, 2010
In a prior study, a methodology was developed for computing approximate large displaced orbits in the Earth-Moon circular restricted three-body problem (CRTBP) by the Moon-Sail two-body problem.
Simo, Jules, McInnes, Colin
core   +3 more sources

Global Efforts to Reduce Paediatric Cancer Care Disparities in Radiotherapy: A Decade Change

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background We present an update on the status, needs and challenges faced by paediatric imaging and radiotherapy (RT) programmes globally after a previous survey conducted by the International Atomic Energy Agency (IAEA) 10 years prior. Methods We developed and distributed a 121‐question survey to radiation oncologists, medical physicists and ...
Raymond B. Mailhot Vega   +10 more
wiley   +1 more source

Tuning the Phase Structure and Electrical Properties of BNKT‐Based Ceramics via Li+ Doping

open access: yesAdvanced Materials Interfaces
Bi0.5[Na0.84‐xK0.16Lix]0.5TiO3 (BNKT‐xLi) lead‐free piezoelectric ceramics were successfully prepared. The phase structure and domain engineering synergistic method were used to improve the piezoelectric properties, and the influence of Li+ doping on its
Guangzhi Dong   +9 more
doaj   +1 more source

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