نتایج جستجو برای: chiral twisted nematic

تعداد نتایج: 57701  

2011
Florent Lalys Claire Haegelen Alexandre Abadie Pierre Jannin

Movement disorders in patients with Parkinson's disease may require functional surgery, when medical therapy isn’t effective. In Deep Brain Stimulation (DBS), electrodes are implanted within the brain to stimulate deep structures such as SubThalamic Nucleus (STN). This paper describes successive steps for constructing digital atlases gathering patient’s location of electrode contacts and clinic...

2012
Cédric Pralet Gérard Verfaillie

Simple Temporal Networks (STN) allow conjunctions of minimum and maximum distance constraints between pairs of temporal positions to be represented. This paper introduces an extension of STN called Time-dependent STN (TSTN), which covers temporal constraints for which the minimum and maximum distances required between two temporal positions x and y are not necessarily constant but may depend on...

2016
Gilberto Colangelo Alessio Vaghi

We study the effects of a finite cubic volume with twisted boundary conditions on pseudoscalar mesons. We first apply chiral perturbation theory in the p-regime and calculate the corrections for masses, decay constants, pseudoscalar coupling constants and form factors at next-to-leading order. We show that the Feynman-Hellmann theorem and the relevant Ward-Takahashi identity are satisfied. We t...

Journal: :RAIRO - Operations Research 2013
Cédric Pralet Gérard Verfaillie

Simple Temporal Networks (STN) allow conjunctions of minimum and maximum distance constraints between pairs of temporal positions to be represented. This paper introduces an extension of STN called Time–dependent STN (TSTN), which covers temporal constraints for which the minimum and maximum distances required between two temporal positions x and y are not necessarily constant but may depend on...

Journal: :Liquid Crystals Today 1997

2002
Fernando Ely Adailton J. Bortoluzzi Hugo Gallardo Aloir A. Merlo

Synthetic manipulations were carried out with the aim of obtaining an advanced linear fragment for production of thermotropic liquid crystals. The chiral fragment synthesised was introduced in a tolanbenzoate mesogenic core by coupling of Sonogashira. The nal chiral tolans showed smectic A and C and nematic liquid crystalline phases. The crystallographic structure of lactone from (-) menthone i...

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