Results 21 to 30 of about 1,199,165 (253)

Intrinsic Instability of Perovskite Solar Cells: The Role of a Hole-Blocking Layer

open access: yesCrystals, 2023
Among the emerging photovoltaic technologies, perovskite solar cells (PSCs) are the most promising ones with efficiencies close to crystalline silicon. However, stability and reliability issues are still a limit for future applications of this technology.
Nicolò Lago   +4 more
doaj   +1 more source

Subtalar instability

open access: yesJournal of Orthopaedic Surgery, 2023
Subtalar instability is a confusing yet important condition in patients with lateral ankle instability. The author will explore subtalar kinematics, and how they are closely related to the joint stability of the subtalar joint, both with respect to its ...
Chin Yik Tan, Gowreeson Thevendran
doaj   +1 more source

Heat-loss effects on the chaotic behavior of cellular premixed flames generated by intrinsic instability

open access: yesJournal of Thermal Science and Technology, 2007
Heat-loss effects on the chaotic behavior of cellular premixed flames generated by intrinsic instability were studied by two-dimensional unsteady calculations of reactive flows based on the compressible Navier-Stokes equation.
Amornrat KAEWPRADAP, Satoshi KADOWAKI
doaj   +1 more source

Joint Effect of Heterogeneous Intrinsic Noise Sources on Instability of MEMS Resonators [PDF]

open access: yesElectronics, 2015
This article's focus is on the numerical estimation of the overall instability of microelectromechanical-system-based (MEMS) resonators, caused by intrinsic noise mechanisms that are different in nature (electrical, mechanical or chemical). Heterogeneous
Olga Jakšić   +6 more
doaj   +1 more source

Numerical Studies on Propagation Mechanisms of Gaseous Detonations in the Inhomogeneous Medium

open access: yesApplied Sciences, 2020
Numerical simulation of propagation mechanisms of gaseous detonations in the inhomogeneous medium is studied by using the reactive Euler equations coupled with a two-step chemical reaction model.
Jianguo Ning, Da Chen, Jian Li
doaj   +1 more source

Role of the intrinsic subtalar ligaments in subtalar instability and consequences for clinical practice

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Subtalar instability (STI) is a disabling complication after an acute lateral ankle sprain and remains a challenging problem. The pathophysiology is difficult to understand.
Frederick Michels   +7 more
doaj   +1 more source

Intrinsic instability of premixed flames in cryogenic environment (Effects of unburned-gas temperature and heat loss)

open access: yesNihon Kikai Gakkai ronbunshu, 2015
The effects of unburned-gas temperature and radiative heat loss on the intrinsic instability of premixed flames in cryogenic environment were studied.
Thwe Thwe Aung, Satoshi KADOWAKI
doaj   +1 more source

Instability of lean H2-O2-CO2 premixed flames on a flat burner

open access: yesNihon Kikai Gakkai ronbunshu, 2015
Global warming and air pollution mainly caused by emissions of CO2 and NOx are serious problems. We focus on a lean H2-O2 premixed flame because H2-O2 premixed flame emits no CO2 and NOx.
Toshiyuki KATSUMI   +3 more
doaj   +1 more source

What is intrinsic motivation? : a typology of computational approaches [PDF]

open access: yes, 2007
Intrinsic motivation, the causal mechanism for spontaneous exploration and curiosity, is a central concept in developmental psychology. It has been argued to be a crucial mechanism for open-ended cognitive development in humans, and as such has gathered ...
Frederic Kaplan   +3 more
core   +1 more source

An intrinsic behavioural approach to the double time axis paradox [PDF]

open access: yes, 2009
Behavioural theory is typically developed on the double time axis. On the other hand it is known that there are intrinsic difficulties with double time axis theorems in the input output context.
Bian, Wenming   +2 more
core   +2 more sources

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