Complex impedance data were collected for eight sandstones at various levels of water saturation (S,) in the frequency range of 5 Hz to 4 MHz. The measurements were made using a two-electrode technique with platinum electrodes sputtered onto the flat faces of diskshaped samples. Presentation of the data in the complex impedance plane shows clear separation of the response due to polarization at...

We consider meta materials made from a two-dimensional dielectric rod-type photonic crystal. The magnetic response is studied within the recently developed homogenization theory and we in particular study the effects of topology and inhomogeneous broadening. While topology itself mainly affects the Mie resonance frequency we find that the dispersion in the topological radius R of the dielectric...

Anthocyanins are colorful plant pigments with promising applications as pharmaceuticals and colorants. In order to engineer efficient pigment biosynthesis in Escherichia coli, the activities of various dihydroflavonol 4-reductases (DFRs) were characterized for the three primary dihydroflavonol substrates. The biochemical assays demonstrated variable DFR activities for dihydroflavonol with one B...

With improvement in consumers’ environmental awareness and the level of design for remanufacturing (DfR), traditional supply chain is gradually changing into a closed-loop (CLSC). However, high will increase costs manufacturers, while also reducing cost remanufacturers. Moreover, manufacturers usually use patent barriers to restrict development The main aims this study were explore how remanufa...

The fovea ulnaris is considered to be the center of rotation on ulnar head during forearm rotation. purpose this study was investigate whether truly isometric in vivo. three-dimensional reconstruction models 21 wrist computed tomography images taken supination and pronation were investigated. superimposed so that two heads same position. Numerous points set surface with a mean distance 0.2 mm b...

We investigate the implications of collective and individual producer responsibility (CPR and IPR, respectively) models of product take-back laws for e-waste on manufacturers’ design for product recovery (DfR) choices and profits, and on consumer surplus in the presence of product competition. We show that IPR offers superior DfR incentives as compared to CPR, and provides a level competitive g...

Elastomeric dielectric material has recently become a new alternative for actuator technology. The characteristics of dielectric elastomers placed between two electrodes to withstand large strain when electrodes are charged has attracted the attention of many researcher to study this material for actuator technology. Thus, in the past few years Danfoss Ventures A/S has established their own die...

When a sinusoidal (ac) field is applied to a suspension containing nonlinear dielectric particles, the electrical response will generally consist of ac fields at frequencies of the higher-order harmonics. The situation is further complicated by an intrinsic dielectric dispersion which often occurs due to the surface conductivity or inhomogeneous structure of the particles. We perform a perturba...

Dielectric nonlinear response of (PbMg1/3Nb2/3O3)0.9(PbTiO3)0.1 (0.9PMN0.1PT) relaxor ceramics was investigated under different ac drive voltages. It was observed that: (i) the dielectric permittivity is independent on ac field amplitude at high temperatures; (ii) with increasing ac drive, the permittivity maximum increases, and the temperature of the maximum shifts to lower temperature; (iii) ...

We evaluated the dielectric permittivity and impedance characteristics of high dielectric constant polymer composite films. Such materials are being investigated by the electronic industry in response to the growing need for efficient integrated powerground de-coupling capacitance in microwave circuits and fast switching devices. In order to extend the dielectric measurements to the microwave r...