Results 51 to 60 of about 8,428,364 (222)

Ising Model on Networks with an Arbitrary Distribution of Connections

open access: yes, 2002
We find the exact critical temperature $T_c$ of the nearest-neighbor ferromagnetic Ising model on an `equilibrium' random graph with an arbitrary degree distribution $P(k)$.
A. Bekessy   +28 more
core   +1 more source

Global Buckling Resistance of Cold-Formed Steel Beams with Omega-Shaped Sections

open access: yesApplied Sciences
The absence of analytical expressions in current codes for evaluating the critical moment for lateral–torsional buckling of cold-formed beams with omega-shaped sections presents a fundamental challenge when assessing their resistance to global buckling ...
Rita Peres   +5 more
doaj   +1 more source

A Study on Calculation Method and Influence Factor of Critical Speed of Helicopter Tail Drive Shaft

open access: yesJixie chuandong, 2022
For the helicopter transmission shaft system,it is usually necessary to carry out a variety of scheme comparison and influence parameter analysis during the design stage to obtain a relatively better design scheme.
De Ni, Cheng Duan, Miaofei Cao, Jing Wei
doaj  

Local buckling failure analysis of high-strength pipelines

open access: yesPetroleum Science, 2017
Pipelines in geological disaster regions typically suffer the risk of local buckling failure because of slender structure and complex load. This paper is meant to reveal the local buckling behavior of buried pipelines with a large diameter and high ...
Yan Li   +4 more
doaj   +1 more source

Required Moment Sets: Enhanced Controllability Analysis for Nonlinear Aircraft Models

open access: yesApplied Sciences, 2021
Attainable moment sets (AMS) are a powerful method to assess aircraft controllability. However, as attainable moment sets only take into account the achievable moment set of the control effectors, they do not assess the required moment set to fulfill the
Max Söpper   +3 more
doaj   +1 more source

Local fluctuations in quantum critical metals

open access: yes, 2003
We show that spatially local, yet low-energy, fluctuations can play an essential role in the physics of strongly correlated electron systems tuned to a quantum critical point.
A. Abanov   +79 more
core   +1 more source

Posthuman COV-llaboration: Enfleshing Encounters of Connectedness Through Imaging Memory

open access: yesInternational Journal of Qualitative Methods, 2021
Caught up in the “COVID moment and distancing-isolation,” the authors came together through a Collective Memory Work initiative to inquire into what solidarity during the COVID moment meant to each of them and collectively assemble understandings about ...
Daisy Pillay   +3 more
doaj   +1 more source

Shaping gender inequalities: critical moments and critical places [PDF]

open access: yesEquality, Diversity and Inclusion: An International Journal, 2015
Purpose– There is much scientific interest in the connection between the emergence of gender-based inequalities and key biographical transition points of couples in long-term relationships. Little empirical research is available comparing the evolution of a couple’s respective professional careers over space and time.
Riaño, Yvonne   +4 more
openaire   +1 more source

Inference for Parameters Defined by Moment Inequalities: A Recommended Moment Selection Procedure [PDF]

open access: yes
This paper is concerned with tests and confidence intervals for partially-identified parameters that are defined by moment inequalities and equalities. In the literature, different test statistics, critical value methods, and implementation methods (i.e.,
Donald W.K. Andrews, Panle Jia
core   +3 more sources

Revealing the transformatory moment of learning technology: the place of critical social theory

open access: yesResearch in Learning Technology, 2011
In revealing the transformatory moment of learning technology, a holistic andongoing critique that is related to a range of socio-cultural factors is required.This critique further uncovers the social relations that frame the place of learningtechnology ...
Richard Hall
doaj   +1 more source

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