Concept

Cotton

Related publications (36)

Shear buckling of GFRP beams webs

Thomas Keller, Anastasios Vassilopoulos, Julia De Castro San Roman Fest, Behzad Dehghan Manshadi

Slender webs of glass fiber-reinforced polymer (GFRP) beams are sensitive to shear buckling. Shear buckling can bee seen as an in-plane biaxial compression-tension buckling problem. The transverse tensile load thereby delays the onset of buckling and incre ...

Springer-Verlag New York, Ms Ingrid Cunningham, 175 Fifth Ave, New York, Ny 10010 Usa2010

An Enantiomerically Pure Alleno-Acetylenic Macrocycle: Synthesis and Rationalization of Its Outstanding Chiroptical Response

Pablo Rivera Fuentes

First enantiomerically pure alleno-acetylenic macrocycles were synthesized. The origin of the main CD band proposed by calcns. was found to be in accordance with the exptl. conclusion obtained from the g-factor plot. The unique combination of geometric and ...

2009

Self-cleaning modified TiO2-cotton pretreated by UVC-light (185 nm) and RF-plasma in vacuum and also under atmospheric pressure

César Pulgarin, Juan Kiwi

Two new innovative findings presented in this study are: (a) TiO2-cotton fabrics obtained by pretreatment with UVC-light (185nm) at atmospheric pressure introduced functionalities into the cotton surface enabling the chelation/binding of TiO2. This was pos ...

2009

Chiral Induction from Allenes into Twisted 1,1,4,4-Tetracyanobuta-1,3-dienes (TCBDs): Conformational Assignment by Circular Dichroism Spectroscopy

Pablo Rivera Fuentes

The mechanism of chiral induction in an optically pure 1,3-diethynylallene, from the central chiral allene moiety into directly adjacent TCBD chromophores, was confirmed and clarified. Only one low-energy conformer is found in calcns. of the potential ener ...

2009

Stiffness of Aligned Wood Fiber Composites: Effect of Microstructure and Phase Properties

Razvan Cristian Neagu

The effect of wood fiber anisotropy and their geometrical features on wood fiber composite stiffness is analyzed. An analytical model for an N-phase composite with orthotropic properties of constituents is developed and used. This model is a straightforwar ...

2008

Towards Textile-Based Fiber Reinforced Thermoplastic Nanocomposites: Melt Spun Polypropylene-Montmorillonite Nanocomposite Fibers

John Christopher Plummer, Martyn Douglas Wakeman, Chrystèle Houphouet-Boigny Favre

The present work is aimed at assessing the feasibility of integrating thermoplastic polypropylene nanocomposite matrices into conventional fiber-reinforced composites based on hybrid textiles that incorporate both the matrix and glass-fiber yarns, in order ...

2007

Scanning and transmission electron microscopy for evaluation of order/disorder in bone structure

Philippe Buffat, Elena Suvorova Buffat

A comparative characterization of the structure of normal and abnormal (osteoporotic) human lumbar and thoracic vertebrae samples was carried out to reveal the type of possible disorder. Samples from the bone fragments extracted during the surgery due to v ...

2007

Performance and characterization of Ag-cotton and Ag/TiO2 loaded textiles during the abatement of E. coli

César Pulgarin, Juan Kiwi, Danièle Laub

The bacterial inactivation of Escherichia coli on Ag–cotton textiles were investigated under different experimental conditions with novel Ag-nanoparticles fixed on cotton textiles. The evaluation of the bactericide performance of the Ag–cotton was compared ...

2006

Self-Cleaning cotton textiles surfaces modified by photoactive SiO2/TiO2 coating

Danièle Laub

The photocatalytic activity of TiO2–SiO2-coated cotton textiles was investigated through the self-cleaning of red wine stains. It was shown that a TiO2–SiO2 species could be produced at temperatures of 100 °C with acceptable photo-activity on non-heat resi ...

2006

Electronique de puissance : Méthodologie et convertisseurs élémentaires

Philippe Barrade

L’électronique de puissance est aujourd’hui une discipline en plein essor, notamment grâce aux nouveaux champs d’applications liés au développement durable et aux énergies renouvelables. Ses bases reposent sur plusieurs décennies d’activités de recherche e ...

Presses polytechniques et universitaires romandes2006

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