Abstract:
A method of generating a circular motion of a liquid in a chamber (10), in particular for generating bottom shear stress and flow control in a chamber (10), comprises the steps of providing a spinning device (20) rotating around a central axis (z) in the chamber (10), and subjecting the liquid to a driving force provided by the spinning device (20), so that a liquid column rotating around the central axis (z) is created, wherein the spinning device (20) comprises at least two rotating components (21, 22, 23, 24, 25, 26, 27) concentrically arranged in contact with the liquid, and the rotating components (21, 22, 23, 24, 25, 26, 27) being rotated with different angular velocities. Furthermore, a reaction device (100) is described, which in particular is adapted for subjecting a sample in a liquid to a predetermined shear stress.
Abstract:
A data recovery circuit has a delay locked loop circuit (22) for providing clock recovery from an input and generating a multi-phase clock signal (44). This is used to sample input data. A phase locked loop circuit (24) generates an output clock (50), and this is used to clock the output data. The data recovery circuit architecture uses both DLL and PLL circuits and takes advantage of the positive features of both PLL and DLL circuits, to provide correct sampling of received data as well as filtering out any phase jitter in the recovered clock signal.
Abstract:
Die Erfindung betrifft flüssigkristalline Verbindungen der Formel (I), worin R 1 , R 2 , A 1 , A 2 , A 3 , A 4 , Z 1 , Z 2 , Z 3 , a, b und c die in Anspruch 1 angegebenen Bedeutungen haben, sowie flüssigkristalline Medien enthaltend mindestens eine Verbindung der (I) und elektrooptische Anzeigen enthaltend ein solches flüssigkristallines Medium.
Abstract:
The invention relates to a process for the preparation of cinnamic acid derivatives which involves reacting chlorinated aromatic compounds and acrylic acid derivatives in the presence of palladium catalysts.
Abstract:
A process is disclosed for preparing compounds having general formula (I) by cross-coupling boric acids, borine acids or boric anhydrides derived therefrom having general formula (II), in which x1, x2, x3 and x4 represent independently from each other H, F, Cl, CF3, OCF3, OCF2H, PC2F5, COOH, OH, NH2, CN, NCS, R1 or R2, with a chlorine, bromine or iodine compound having general formula (III), in which Y stands for Cl, Br, or J and x1, x2, x3 and x4 have independently from each other the above mentioned meaning, in a solvent-water mixture in the presence of a transition metal catalyst and a water-soluble borate. In the formulae, R1, R2, A1, A2, Z1, Z2, m and n have the meaning given in the first claim.
Abstract:
Diphenylylethanes of formula (I), in which one of the residues R and R denotes X and the other residue R or R denotes R-Y-, where X denotes H, halogen, -CF3, -OCHF2, -OCF3, -CN, -NCS or -NO2, R denotes alkyl, fluoralkyl, alkenyl or oxaalkyl, Y denotes O, S, -CO-O-, -O-CO-, -O-CO-O-, a single bond or, if m = 1, also trans-1,4-cyclohexylene or (II), m = 1 or 2, Ph denotes identical or different residues chosen from the group consisting of 1,4-phenylene, 2-fluor-1,4-phenylene, 3-fluor-1,4-phenylene and 3,5-difluor-1,4-phenylene, L and L each denote H, or one of these residues denotes F, L , L and L each denote H or F, provided that in the case where X = CN or R = -NCS, Y denotes 1,4-cyclohexylene or (II), and/or m = 2 and/or one of the residues L , L and L denotes fluorine and/or denotes Ph-Cn-2-fluor-4-cyanphenyl or 3,5-difluor-4-cyanphenyl, are suitable as components of liquid crystalline phases.
Abstract:
A method of generating a circular motion of a liquid in a chamber (10), in particular for generating bottom shear stress and flow control in a chamber (10), comprises the steps of providing a spinning device (20) rotating around a central axis (z) in the chamber (10), and subjecting the liquid to a driving force provided by the spinning device (20), so that a liquid column rotating around the central axis (z) is created, wherein the spinning device (20) comprises at least two rotating components (21, 22, 23, 24, 25, 26, 27) concentrically arranged in contact with the liquid, and the rotating components (21, 22, 23, 24, 25, 26, 27) being rotated with different angular velocities. Furthermore, a reaction device (100) is described, which in particular is adapted for subjecting a sample in a liquid to a predetermined shear stress.
Abstract:
A method of generating a circular motion of a liquid in a chamber (10), in particular for generating bottom shear stress and flow control in a chamber (10), comprises the steps of providing a spinning device (20) rotating around a central axis (z) in the chamber (10), and subjecting the liquid to a driving force provided by the spinning device (20), so that a liquid column rotating around the central axis (z) is created, wherein the spinning device (20) comprises at least two rotating components (21, 22, 23, 24, 25, 26, 27) concentrically arranged in contact with the liquid, and the rotating components (21, 22, 23, 24, 25, 26, 27) being rotated with different angular velocities. Furthermore, a reaction device (100) is described, which in particular is adapted for subjecting a sample in a liquid to a predetermined shear stress.
Abstract:
A data recovery circuit has a delay locked loop circuit (22) for providing clock recovery from an input and generating a multi-phase clock signal (44). This is used to sample input data. A phase locked loop circuit (24) generates an output clock (50), and this is used to clock the output data. The data recovery circuit architecture uses both DLL and PLL circuits and takes advantage of the positive features of both PLL and DLL circuits, to provide correct sampling of received data as well as filtering out any phase jitter in the recovered clock signal.
Abstract:
Die Erfindung betrifft Formyltetrahydropyrane mit mesogenen Substituenten, Verfahren zu ihrer Herstellung sowie ihre Verwendung zur Herstellung von substituierten Tetrahydropyranderivaten.