نتایج جستجو برای: composite face sheets

تعداد نتایج: 306941  

2016
Mao Du Shimin Xiong Tianhui Wu Deqiang Zhao Qian Zhang Zihong Fan Yao Zeng Fangying Ji Qiang He Xuan Xu

A novel Ag-reduced graphene oxide (rGO)-bismuth vanadate (BiVO₄) (AgGB) ternary composite was successfully synthesized via a one-step method. The prepared composite was characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), Brunauer-Emmett-Teller (BET) surface area measurement, Raman scattering spectro...

2016
Yu Bian Beihai He Junrong Li

A facile approach for producing fluorescent composite paper containing nitrogen-doped graphene quantum dots (N-GQDs) and graphene on the surface of the modified fibers was implemented from the exfoliation of graphite oxide (GO) using a one-step hydrothermal method. The properties of the composite paper were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanni...

Journal: :Acta crystallographica. Section C, Crystal structure communications 2004
David E Turkington George Ferguson Alan J Lough Christopher Glidewell

In rac-1-phenylethanaminium rac-malate(1ÿ), C8H12N C4H5O5 ÿ, (I), the anions are linked by two inter-anion OÐ H O hydrogen bonds into sheets generated by a glide plane and hence containing both enantiomers of the anion. The cations are linked to the anion sheets by three NÐH O hydrogen bonds, such that cations of R con®guration are bonded to one face of the sheet and cations of S con®guration a...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1981
C Chothia J Janin

When beta-pleated sheets pack face to face in proteins, the angle between the strand directions of the two beta-sheets is observed to be near -30 degrees . We propose a simple model for beta-sheet-to-beta-sheet packing in concanavalin A, plastocyanin, gamma-crystallin, superoxide dismutase, prealbumin, and the immunoglobin fragment V(REI). This model shows how the observed relative orientation ...

In this paper, a unified beam theory is developed and applied to study the buckling response of two types of functionally graded sandwich beams. In the first type (Type A), the sandwich beam has a hardcore whereas in the second type (Type B), the sandwich beam has a softcore. In both the type of beams, face sheets are made up of functionally graded material. The material properties of face shee...

Journal: :Journal of composites science 2022

Sandwich structures benefit from the geometrical stiffening effect due to their high cross-sectional area moment of inertia. Transferred carbon fiber-reinforced plastic (CFRP) components, needed amount fiber (CF) material can be reduced and with it CO2 footprint. The combination a light foam core continuous face sheets is suitable for lightweight design. Traditionally, CFRP sandwich are manufac...

2004
F. Côté

Stainless steel square-honeycombs have been manufactured by slotting together steel sheets and then brazing the assembly. Their out-of-plane compressive response has been measured as a function of the relative density, the ratio of specimen height to cell size, and the degree of constraint associated with bonding of the honeycomb to face-sheets. It has been found that, for the practical range o...

2015
Keith J. Flanagan Mathias O. Senge

In the title compound, C8H9BO4, the meth-oxy-carbonyl group is rotated out of the plane of the benzene ring by 7.70 (6)°. In the crystal, mol-ecules are linked via pairs of O-H⋯O hydrogen bonds, involving the boronic acid OH groups, forming inversion dimers. The dimers are linked via O-H⋯O hydrogen bonds, involving a boronic acid OH group and the carbonyl O atom, forming undulating sheets paral...

Journal: :Nano letters 2007
Supinda Watcharotone Dmitriy A Dikin Sasha Stankovich Richard Piner Inhwa Jung Geoffrey H B Dommett Guennadi Evmenenko Shang-En Wu Shu-Fang Chen Chuan-Pu Liu SonBinh T Nguyen Rodney S Ruoff

Transparent and electrically conductive composite silica films were fabricated on glass and hydrophilic SiOx/silicon substrates by incorporation of individual graphene oxide sheets into silica sols followed by spin-coating, chemical reduction, and thermal curing. The resulting films were characterized by SEM, AFM, TEM, low-angle X-ray reflectivity, XPS, UV-vis spectroscopy, and electrical condu...

Journal: :Journal of neuropsychology 2008
Adéläide de Heering Bruno Rossion Chiara Turati Francesca Simion

People tend to perceive identical top halves (i.e., above the nose) of two face stimuli as being different when they are aligned with distinct bottom halves. This composite face illusion is generally considered as the most compelling evidence that facial features are integrated into a holistic representation. Here, we recorded eye-movements during the composite face illusion in a delayed matchi...

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