Wir stellen relativ genaue allgemeine Aufwandsbetrachtungen an und erläutern die Meßergebnisse unserer Implementierung. Beide Angaben werden mit Werten für das verbreitete RSA-Signatursystem verglichen. Dabei stellt sich heraus, daß GMR nicht nur praktikabel, sondern in manchen Fällen sogar effizienter ist als RSA (in reiner Form). Stellt man hohe Sicherheitsanforderungen, ist GMR demnach eine ...

-In this paper, the suspended-membrane-type guided-mode resonance (GMR) filter based on silicon with a narrow bandstop spectrum is experimentally demonstrated. The resonance wavelength of proposed GMR filter is controlled at 1580.6 nm with a bandwidth less than 0.92 nm. The improved spectral performance including the sideband can be extended as far as 415 nm with the maximum transmittance great...

We have proposed and fabricated a new mid-infrared reflector using the guided-mode resonance (GMR). The GMR reflector consists of subwavelength Ge grating on GaAs substrate with a low-refractive-index SiOx layer in between. With a total thickness of about 2 μm, a near-100% reflectivity at 8 μm has been obtained both theoretically and experimentally.

In a self-consistent semi-empirical numerical approach based on abinitio-calculations for small samples, we evaluate the GMR effect for disordered (001)-(3–Fe/3–V)∞ multilayers by means of a Kubo formalism. We consider four different types of disorder arrangements: In case (i) and (ii), the disorder consists in the random interchange of some Fe and V atoms, respectively, at interface layers; in...

W consider a two-echelon inventory system with a capacitated centralized production facility and several distribution centers (DCs). Both production and transportation times are stochastic with general distributions. Demand arrives at each DC according to an independent Poisson process and is backlogged if the DC is out of stock. We allow different holding and backlog costs at the different DCs...

BACKGROUND It is necessary to evaluate the impact of hepatic impairment on the pharmacokinetic profile of direct-acting antiviral agents for the treatment of HCV infection. METHODS In this open-label, parallel group, multiple-dose study subjects (aged 18-70 years with a body mass index <35 kg/m(2)) with mild (n=6), moderate (n=6) and severe hepatic impairment (n=4) received asunaprevir 200 mg...

AIMS To describe patterns of ICD-10 classification of illicit drug-induced deaths (DID) in the General Mortality Register (GMR), to assess the applicability of the European criterion (which excludes the X44 code) to extract these deaths from the GMR, and to estimate drug-induced mortality in Spain by applying a correction index for underestimation. METHODS DID between 1999 and 2007 were extra...

Ritonavir-boosted darunavir with efavirenz may be considered a nucleoside-sparing regimen for treatment-naïve HIV-infected patients. However, the pharmacokinetics of this combination administered once daily have not been studied. We conducted a three-period interaction study with healthy volunteers. The subjects were given darunavir at 900 mg with ritonavir at 100 mg once daily for 10 days. Efa...

In this report we describe a new linear position transducer based on the giant magneto resistance (GMR) effect. The GMR effect is a phenomenon observed in multilayer structures consisting of ferromagnetic, antiferromagnetic and paramagnetic metal films. The transducer consists of four GMR elements configured in a Wheatstone bridge with 380 Ohms nominal resistance of each leg. GMR elements were ...

Nondestructive inspections involving multi-layered structures often require a reliable NDI methodology to estimate size and location of a flaw with quantitative information about width and depth. Compared to conventional wire-wound pick-up coil based eddy current NDI methods, Giant Magneto-resistive (GMR) sensor based eddy current methods have shown a much better sensitivity (20–50 times) for a...