Results 71 to 80 of about 4,558,660 (292)

Research on Dynamic Modeling and Transition Flight Strategy of VTOL UAV

open access: yesApplied Sciences, 2019
A vertical take-off and landing (VTOL) unmanned aerial vehicle (UAV) can meet both VTOL and horizontal flight performance, but how to achieve a safe and stable transition is a research focus of this type of aircraft.
Chunyang Wang, Zhou Zhou, Rui Wang
doaj   +1 more source

Phase diagram of the restricted solid-on-solid model coupled to the Ising model

open access: yes, 1996
We study the phase transitions of a restricted solid-on-solid model coupled to an Ising model, which can be derived from the coupled XY-Ising model. There are two kinds of phase transition lines.
B. Berge   +26 more
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Quantum phase transition in the Yukawa-SYK model

open access: yesPhysical Review Research, 2020
We study the quantum phase transition upon varying the fermionic density ν in a solvable model with random Yukawa interactions between N bosons and M fermions, dubbed the Yukawa-SYK model.
Yuxuan Wang, Andrey V. Chubukov
doaj   +1 more source

Transition in the complex and chaotic international systems: Iran [PDF]

open access: yesFaṣlnāmah-i Pizhūhish/hā-yi Rāhburdī-i Siyāsat, 2018
Transition in the international system is a prevalent and inevitable process and theories of international relations really pay attention to this. But development of international system and emergence of complex and chaotic system make a change in power ...
فرهاد قاسمی
doaj   +1 more source

Quantum Phase Transition in Lattice Model of Unconventional Superconductors

open access: yes, 2007
In this paper we shall introduce a lattice model of unconventional superconductors (SC) like d-wave SC in order to study quantum phase transition at vanishing temperature ($T$).
Broun   +17 more
core   +2 more sources

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

A holographic model of quantum Hall transition

open access: yesNuclear Physics B, 2016
We consider a phenomenological holographic model, inspired by the D3/D7 system with a (2+1)-dimensional intersection, at finite chemical potential and magnetic field.
Andrea Mezzalira, Andrei Parnachev
doaj   +1 more source

A symmetry-based length model for characterizing the hypersonic boundary layer transition on a slender cone at moderate incidence

open access: yesAdvances in Aerodynamics, 2022
The hypersonic boundary layer (HBL) transition on a slender cone at moderate incidence is studied via a symmetry-based length model: the SED-SL model. The SED-SL specifies an analytic stress length function (which defines the eddy viscosity) describing a
Wei-Tao Bi   +3 more
doaj   +1 more source

Quantum Phase Transition in a Graphene Model

open access: yes, 2008
We present results for the equation of state of a graphene-like model in an effort to understand the properties of its quantum phase transition. The N_f fermion species interact through a three dimensional instantaneous Coulomb potential. Since there are
Costas Strouthos, Creutz M, Simon Hands
core   +1 more source

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