Quantum Corrections to Thermopower and Conductivity in Graphene

The quantum corrections to the conductivity and the thermopower in monolayer graphene are studied. We use the recursive Green's function method to calculate numerically the conductivity and the thermopower of graphene. We then analyze these weak localization corrections by fitting with the analytical theory as function of the impurity parameters and the gate potential. As a result of the quantum corrections to the thermopower, we find large magnetothermopower which is shown to provide a very sensitive measure of the size and strength of the impurities. We compare these analytical and numerical results with existing experimental measurements of magnetoconductance of single layer graphene and find that the average size and strength of the impurities in these samples can thereby be determined. We suggest favorable parameter ranges for future measurements of the magnetothermopower

A Distinctionless Distinction: why the RCS/ECS Distinction in the Stored Communications Act Does Not Work

The article focuses on the Stored Communications Act (SCA) and the amendments proposed to the SCA. It discusses cases related to the application of the SCA with contradictory results including George Theofel v. Alwyn Farely-Jones, Ernest Flagg v. City of Detroit, Michigan and Quon v. Arch Wireless Inc. It states that SCA protects the privacy of electronic communication through Fourth Amendment and sets the framework for the disclosure

A Distinctionless Distinction: why the RCS/ECS Distinction in the Stored Communications Act Does Not Work

The article focuses on the Stored Communications Act (SCA) and the amendments proposed to the SCA. It discusses cases related to the application of the SCA with contradictory results including George Theofel v. Alwyn Farely-Jones, Ernest Flagg v. City of Detroit, Michigan and Quon v. Arch Wireless Inc. It states that SCA protects the privacy of electronic communication through Fourth Amendment and sets the framework for the disclosure

From non-symmetric particle systems to non-linear PDEs on fractals

We present new results and challenges in obtaining hydrodynamic limits for non-symmetric (weakly asymmetric) particle systems (exclusion processes on pre-fractal graphs) converging to a non-linear heat equation. We discuss a joint density-current law of large numbers and a corresponding large deviations principle.Comment: v2: 10 pages, 1 figure. To appear in the proceedings for the 2016 conference "Stochastic Partial Differential Equations & Related Fields" in honor of Michael R\"ockner's 60th birthday, Bielefel

Concept for classifying facade elements based on material, geometry and thermal radiation using multimodal UAV remote sensing

This paper presents a concept for classification of facade elements, based on the material and the geometry of the elements in addition to the thermal radiation of the facade with the usage of a multimodal Unmanned Aerial Vehicle (UAV) system. Once the concept is finalized and functional, the workflow can be used for energy demand estimations for buildings by exploiting existing methods for estimation of heat transfer coefficient and the transmitted heat loss. The multimodal system consists of a thermal, a hyperspectral and an optical sensor, which can be operational with a UAV. While dealing with sensors that operate in different spectra and have different technical specifications, such as the radiometric and the geometric resolution, the challenges that are faced are presented. Addressed are the different approaches of data fusion, such as image registration, generation of 3D models by performing image matching and the means for classification based on either the geometry of the object or the pixel values. As a first step towards realizing the concept, the result from a geometric calibration with a designed multimodal calibration pattern is presented