Results 41 to 50 of about 156,071 (279)

Micro- and macroscopic simulation of periodic metamaterials [PDF]

open access: yesAdvances in Radio Science, 2008
In order to characterize three-dimensional, left-handed metamaterials (LHM) we use electromagnetic field simulations of unit cells. For waves traveling in one of the main directions of the periodic LHM-arrays, the analysis is concentrated on the ...
R. Schuhmann   +3 more
doaj  

Experimental Study on the Influence of Coarse Particle on the Yield Stress of Debris Flows

open access: yesApplied Rheology, 2016
Former studies show that the coarse particle plays a very important role in the determination of the yield stress of fluid-solid mixtures such as debris flows. The characteristics of the coarse particle in these mixtures include particle size, gradation,
Yu Bin, Chen Yuanjing, Liu Qinghua
doaj   +1 more source

Pengaruh Pendekatan Konflik Kognitif Terhadap Penguasaan Konsep Fisika Peserta Didik

open access: yesJPFT (Jurnal Pendidikan Fisika dan Teknologi), 2018
This research aimed at measure the effect of cognitive conflict approach on the mastery of physics concept of students. Cognitive conflict is an approach consisting of preliminary, conflict, and settlement phases.
Martina Nur Larasafitri   +2 more
doaj   +1 more source

Analysis and research on solution method of metal layer stress in fiber metal laminates

open access: yesMaterials Research Express, 2020
As a new type composite material, fiber metal laminates (FMLs) have been widely applied in the aerospace field. To further develop and apply this new composite material, a stress prediction method for the metal layer in the laminates was examined.
Xiaochen Zhang   +4 more
doaj   +1 more source

The Equivalent Material Concept: Application to failure of O-notches

open access: yesEngineering Solid Mechanics, 2013
Article history: Received March 20, 2013 Received in Revised form September, 14, 2013 Accepted 18 September 2013 Available online 18 September 2013 The novel equivalent material concept, proposed originally by the author, was utilized together with the mean stress and the point stress failure concepts to predict the load-carrying capacity of O-notched ...
openaire   +1 more source

Simulation of Optical Fiber Amplifier Gain Using Equivalent Short Fibers [PDF]

open access: yes, 2020
Electromagnetic wave propagation in optical fiber amplifiers obeys Maxwell equations. Using coupled mode theory, the full Maxwell system within an optical fiber amplifier is reduced to a simpler model.
Gopalakrishnan, Jay   +3 more
core   +1 more source

Ductile Failure Prediction of Friction Stir Welded AA7075-T6 Aluminum Alloy Weakened by a V-notch [PDF]

open access: yesJournal of Stress Analysis, 2019
With increasing applications of the Friction Stir Welding (FSW), a proper study of the fracture behavior is required. In this research, fracture behavior of AA7075-T6 alloy joint made by FSW is investigated by evaluat-ing a fracture test on the ...
A. Nouri, M. Kazemi Nasrabadi
doaj   +1 more source

The Relationship Between Physical Activity and Left Ventricular Remodeling in Childhood Cancer Survivors Treated With Anthracyclines: A Cross‐Sectional Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Anthracycline‐related cardiac remodeling precedes heart failure in childhood cancer survivors. The objectives of this study were to determine the relationships between patient‐specific factors, moderate‐to‐vigorous physical activity (MVPA), and cardiac remodeling.
Hari K. Narayan   +15 more
wiley   +1 more source

The equivalent fundamental-mode source [PDF]

open access: yes, 1996
In 1960, Hansen analyzed the problem of assembling fissionable material in the presence of a weak neutron source. Using point kinetics, he defined the weak source condition and analyzed the consequences of delayed initiation during ramp reactivity ...
Busch, R. D.   +3 more
core   +1 more source

Natural Killer Cells in Paediatric Soft Tissue Sarcomas: A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Paediatric soft tissue sarcomas (pSTS) are a rare and heterogeneous group of malignant tumours arising in tissues of mesenchymal origin. The role of natural killer (NK) cells in pSTS remains poorly understood, with evidence fragmented across small preclinical studies and early‐phase clinical trials.
Raya Dean   +7 more
wiley   +1 more source

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