نتایج جستجو برای: sem stress

تعداد نتایج: 501565  

2013
Y. C. Lu L. Dai J. Baur

Mechanical properties and deformation of the vertically aligned carbon nanotube arrays (VA-CNTs) has been examined with large-displacement indentation tests inside a scanning electronic microscope (SEM). The in-situ indentation allows for establishment of the load-depth responses and real-time observations of the deformation processes. Under a cylindrical, flat indenter, the VA-CNTs exhibit ela...

2012
M. Jalali Azizpour S. Norouzi D. Sajedipour

In this paper, the residual stress of thermal spray coatings in gas turbine component by curvature method has been studied. The samples and shaft were coated by hard WC-12Co cermets using high velocity oxy fuel (HVOF) after preparation in same conditions. The curvature of coated samples was measured by using of coordinate measurement machine (CMM). The metallurgical and Tribological studies has...

2014
Douglas Stauffer Sanjit Bhowmick

The studies of irradiation damage in silica are of significant interest because of its application in nuclear reactors, nuclear waste containers, optical fibers, and semiconductor devices [1,2]. Although there are a number of publication showing the effect of electrons, ions, protons, alpha-particles irradiation on microstructural changes of silica, understanding deformation behavior under appl...

Journal: :Microelectronics Reliability 2012
T. Nshanian P. N. Grillot M. Holub S. Watanabe W. Götz

0026-2714/$ see front matter 2012 Elsevier Ltd. A http://dx.doi.org/10.1016/j.microrel.2012.06.046 ⇑ Corresponding author. Tel.: +1 408 674 2779; fax E-mail address: [email protected] (T. N The EBIC mode of SEM was used to image individual dislocations and measure the effect of local stress on EBIC contrast of threading dislocations (TDs) in GaN LEDs. In this method, EBIC shows that l...

2012
Y. C. Lu J. Joseph Q. Zhang M. R. Maschmann L. Dai J. Baur

Mechanical properties and deformation of the vertically aligned carbon nanotube arrays (VA-CNTs) has been examined with large-displacement indentation tests inside a scanning electronic microscope (SEM). The in-situ indentation allows for establishment of the load-depth responses and real-time observations of the deformation processes. Under a cylindrical, flat indenter, the VA-CNTs exhibit ela...

Journal: :Multivariate behavioral research 1998
J Pearl

The authors have given us a lucid, concise, and accurate account of the TETRAD project, an account likely to clear much of the confusion over the philosophy of graph-based causal discovery methods. As one who has been active in the exploration and formulation of this philosophy, I am very pleased to see TETRAD arrive at this stage of development and now presented as a practical modeling tool fo...

Journal: :História da Historiografia 2023

O artigo se propõe a pensar Perder mãe: uma jornada pela rota atlântica da escravidão, de Saidiya Hartman, em diálogo com os seus ensaios “Tempo escravidão” e “Vênus dois atos”, como escrita história escravidão que concebe escravizados ancestrais à medida autora afirma descendente vive sobrevida escravidão. Situando-a na nova social no debate torno do caráternarrativo ficcional história, argume...

2013
Allison G. Hays Matthias Stuber Glenn A. Hirsch Jing Yu Michael Schär Robert G. Weiss Gary Gerstenblith Sebastian Kelle

OBJECTIVES Our objective is to test the hypothesis that coronary endothelial function (CorEndoFx) does not change with repeated isometric handgrip (IHG) stress in CAD patients or healthy subjects. BACKGROUND Coronary responses to endothelial-dependent stressors are important measures of vascular risk that can change in response to environmental stimuli or pharmacologic interventions. The eval...

2013
Dilna Damodaran Raj Mohan Balakrishnan Vidya K. Shetty

Optimum concentrations of heavy metals like copper, cadmium, lead, chromium, and zinc in soil are essential in carrying out various cellular activities in minimum concentrations and hence help in sustaining all life forms, although higher concentration of these metals is lethal to most of the life forms. Galerina vittiformis, a macrofungus, was found to accumulate these heavy metals into its fl...

Journal: :Journal of clinical psychology 2009
Qingbo Liu Toshiaki Nagata Masahiro Shono Toshinori Kitamura

To investigate the relationship among adult attachment style, life stress, and daily depression, a sample of 437 undergraduate students was prospectively studied. Insecure adult attachment and perceived life stress were related to their daily depressive mood. Further analyses using both multiple hierarchical regression and structural equation models (SEM) demonstrated that adult attachment styl...

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