Results 71 to 80 of about 2,096,695 (356)
A Variational Beam Model for Failure of Cellular and Truss‐Based Architected Materials
Advanced Engineering Materials, EarlyView., 2023 Herein, a versatile and efficient beam modeling framework is developed to predict the nonlinear response and failure of cellular, truss‐based, and woven architected materials. It enables the exploration of their design space and the optimization of their mechanical behavior in the nonlinear regime. A variational formulation of a beam model is presented
Konstantinos Karapiperis +3 more
wiley +1 more source
Differential Geometry and its Applications, 2005 AbstractWe consider multiple-integral variational problems where the Lagrangian function, defined on a frame bundle, is homogeneous. We construct, on the corresponding sphere bundle, a canonical Lagrangian form with the property that it is closed exactly when the Lagrangian is null. We also provide a straightforward characterization of null Lagrangians
Michael Crampin, David Saunders
openaire +2 more sources
Null hypersurfaces in Lorentzian manifolds with the null energy condition [PDF]
Journal of Geometry and Physics, 2020 9 ...
Shintaro Akamine +3 more
openaire +3 more sources
IRSF/SIRIUS JHKs near-infrared variable star survey in the Magellanic Clouds
, 2009 We carried out a NIR variable star survey toward the Large and Small Magellanic Clouds using the InfraRed Survey Facility (IRSF) at Sutherland, South African Astronomical Observatory.
Joyce Ann Guzik +4 more
core +1 more source
Double Longitudinal Spin Asymmetry in Neutral Pion Production in Polarized p+p Collisions at sqrt(s)=200 GeV at PHENIX [PDF]
, 2007 A major goal of the RHIC spin program is to measure \Delta g, the gluon contribution to the proton's spin. Measurements by PHENIX of the double longitudinal spin asymmetry, A_LL, of the neutral pion production at mid-rapidity in polarized proton ...
Kieran Boyle, null null
core +3 more sources
Advanced Engineering Materials, EarlyView., 2023 A numerical scheme is presented to design a lattice support for metallic components additively built via laser powder bed fusion. Results show that thermal‐induced distortion can be respectively reduced by 69%, 58%, and 50% in comparison to a uniform lattice, a fully solid support, and a truss‐based lattice support.
Jiazheng Hu +2 more
wiley +1 more source
The effect of the curriculum integration approach on the academic achievement of fourth grade female students in Khash city [PDF]
مطالعات روانشناسی تربیتی, 2019 The purpose of this study was to investigate the effect of the curriculum integration approach on the academic achievement of fourth grade female students in Khash city. The research method is quasi-experimental.
tahere hashemnejad +2 more
doaj +1 more source
Population Ecology, EarlyView.In the process of captive breeding and reintroduction of endangered animal species, it is crucial to minimize familial bias in reproductive success during the reintroduction phase to preserve genetic diversity. In this study, we attempted to identify the familial lineage of individuals of the endangered bagrid fish Tachysurus ichikawai born at the ...
Hinano Mizuno +5 more
wiley +1 more source
Effectiveness of group metaphor model on school satisfaction and resilience of students with academic failure [PDF]
مطالعات روانشناسی تربیتی, 2019 The purpose of this study was to investigate the effect of metaphoric therapy on school satisfaction and resilience of students with decreasing academic performance in the second grade secondary school of Lenjan, 96-95.
abbas roohani, hamid eshraghi
doaj +1 more source
A review of international oil and gas pipeline agreements and its implication in the Iranian legal system [PDF]
Faṣlnāmah-i Pizhūhish-i Huqūq-i ̒Umūmī, 2020 Pipelines are one of the most commonly used means for onshore transportation of oil and gas. In general, there are two different approaches which can be used to form the legal framework for the construction and operation of international pipelines: the ...
Mehdi Piri +2 more
doaj +1 more source