Tree filtering for high density airborne LiDAR data

A high resolution Airborne LiDAR data creates better opportunity for an individual tree measurement and provides valuable results for more precise forest inventory. This paper presents tree filtering approach that able to separate dominant tree and undergrowth vegetation. The results can be used for a detailed individual tree measurement. This...

Limiting factors for electron beam lithography when using ultra-thin hydrogen silsesquioxane layers

Multiple-description lattice vector quantization

In this thesis we construct and analyze index-assignment based multiple-description coding schemes.

Sub-10 nm structures written in ultra-thin HSQ resist layers, using Electron Beam Lithography

Isolated dots and lines with 6 nm width were written in 20 nm thick Hydrogen silsesquioxane (HSQ) layers on silicon substrates, using 100 keV electron beam lithography. The main factors that might limit the resolution, i.e. beam size, writing strategy, resist material, electron dose, development process, are discussed. We demonstrate that, by...

Simulation of Three Phase Flow in Porous Media Using a High-Resolution Central Scheme

This article aims to demonstrate the advantages of using a high resolution central scheme in the field of multiphase flow in porous media. The black oil model, used in the petroleum reservoir engineering, is employed as it generally provides an acceptable model for most reservoirs and recovery processes. The governing equations are split into a...

Modeling of the wave breaking with CICSAM and HRIC high resolution schemes

The paper concerns modeling of two-phase flow with the volume of fluid method (VOF) and two high-resolution advection schemes based on the normalized variable diagram (NVD). Compressive Interface Capturing Scheme for Arbitrary Meshes (CICSAM) and High Resolution Interface Capturing scheme (HRIC). Both considered schemes are used to discretize...

Large Eddy Simulation of Bifurcating and Transitional Suddenly Expanded Flows

Implicit Large Eddy Simulation (ILES) using high-resolution methods have been employed in the investigation of bifurcation and transition of flow through three dimensional suddenly-expanded channels. ILES refers to high-resolution methods employed in spatially under-resolved simulations of turbulent flows without the need to resort to turbulence...

A compact fast-neutron producing target for high resolution cross section measurements

A proper knowledge of neutron cross sections is very important for the operation safety of various nuclear facilities. Reducing uncertainties in the neutron cross sections can lead to an enhanced safety of present and future nuclear power systems. Accurate neutron cross sections also play a relevant role in many other disciplines such as...

Measuring the near-field of extra-ordinary transmission through a periodic hole-array

The knowledge of the near-field of extra-ordinary transmission through hole-arrays is mostly theoretical; there is less experimental validation of the theory. We study the near-field properties by measuring fluorescent molecules that are immersed in a solution and their Brownian motion. The measurements are performed by filling the space above...

A novel concept for a mid-field microscope

When light passes through a hole smaller than the wavelength of the light, the transmission is very low and the light is diffracted. This however changes if holes are arranged in a periodic array on metal. In that case the light couples to surface plasmons; this results in enhanced transmission, spectral selection and a small angular diffraction...

Toward the development of a Three-Dimensional Mid–Field Microscope

Recently, an extraordinary transmission of light through small holes (<200 nm) in a thin metallic film has been described. This phenomenon has been shown to be the result of the photon-plasmon interaction in thin films where a periodic structure (such as a set of holes) is embedded in the film. One of the extraordinary results is that the beam...

Electrical transport in monolayers of phthalocyanine molecular wires and AFM imaging of a single wire bridging two electrodes

Information extraction from multiple transmission electron microscopy images