If we render textures using bi-linear interpolation we will observe aliasing artifacts in ray-traced images. Intuitively, we can avoid such problems by averaging the texture over the area of a pixel instead of evaluating it at a single point. To implement such a procedure we have to solve two problems: First, we need to compute the region in the texture that corresponds to the pixel area. We ca...

Serial matrices are a preferred choice for building diffusion layers of lightweight block ciphers as one just needs to implement the last row of such a matrix. In this work we analyze a new class of serial matrices which are the lightest possible 4 × 4 serial matrix that can be used to build diffusion layers. With this new matrix we show that block ciphers like LED can be implemented with a red...

An 18 4R38 radial-ply tractor drive tyre was operated at 10% travel reduction, at three correctly inflated combinations of dynamic load and inflation pressures on a structured clay soil and at another combination of load and inflation pressure on a loose sandy loam and a loose clay loam soil. Soil–tyre interface pressures on the face of one lug and on an undertread region between two lugs were ...

extended abstract 1. introduction tourism industry is known as one of the most thriving, attractive, job- creating and greatest industries in third millennium. the growth of this industry, despite its many positive economic advantages for hosting communities, has had some adverse consequences particularly on environmental aspects that have led to increased concerns among the experts and planner...

The mathematical determinants of vertebrate organ growth have yet to be elucidated fully. Here, we utilized empirical measurements and a dynamic branching process-based model to examine the growth of a simple organ system, the mouse lens, from E14.5 until the end of life. Our stochastic model used difference equations to model immigration and emigration between zones of the lens epithelium and ...

With this UFOPLAN project on land use indicators, the German Federal Environment Agency aimed at further developing indicators from a consumption perspective in support of Germany’s sustainability strategy, covering both area-based and impact-oriented land footprint indicators. The project also aimed at calculating selected land footprint indicators for Germany and the EU. These indicators shou...

This paper chose Eastern China area, Central China area, Western China area and Northeast China area as the study object and chose landuse classifications as the basic ecological system unit. It roughly estimated the regional ecological system service value. The theory of ecosystem service value, the method of ecological footprint and ecological carrying capacity are applied to analyze the cros...

We present Footprint, a system for delivering online services in the “integrated” setting, where the same provider operates multiple elements of the infrastructure (e.g., proxies, data centers, and the wide area network). Such integration can boost system efficiency and performance by finely modulating how traffic enters and traverses the infrastructure. But fully realizing its benefits require...

The explosion of an improvised nuclear device (IND), in any American city, would cause devastating physical and social impacts. These impacts would exceed the response capabilities of any city, state or region. The potential loss and suffering caused by an IND detonation can be dramatically reduced through informed planning and preparedness. By incorporating estimates of the impacts associated ...