This paper simulates the density and temperature fields in the process of mixture formation with two combustion modes in a Diesel engine. The computational simulations and experiments show that in the normal combustion mode, the density and temperature of mixtures change greatly in the combusting sprays so that there are premixed combustion and diffusion combustion simultaneously, which results...

The MAV ’08 competition in Agra, India focused on the problem of using air and ground vehicles to locate and rescue hostages being held in a remote building. Executing this mission required addressing a number of technical challenges. The first such technical challenge was the design and operation of a micro air vehicle (MAV) capable of flying the necessary distance and carrying a sensor payloa...

Ground hardmetals are exposed to high temperatures during both processing (e.g. coating deposition) and use (e.g. as a cutting tool). However, studies on thermally induced changes of surface integrity are limited. Here we address this by means of FIB/FESEM and EBSD investigation, with special focus on the binder phase characterization. Our findings indicate that thermal treatment causes two mai...

To investigate the kinetics of methanol synthesis from a mixture CO2/CO/H2, computational fluid dynamics model has been developed, incorporating two distinct kinetic models, one which includes CO hydrogenation and does not.

Automatic taggers describe music in terms of a multinomial distribution over relevant semantic concepts. This paper presents a framework for improving automatic tagging of music content by modeling contextual relationships between these semantic concepts. The framework extends existing auto-tagging methods by adding a Dirichlet mixture to model the contextual co-occurrences between semantic mul...

In this study, a high energy planetary ball milling technique was used to synthesize nano-crystalline Mo-Cu alloys. Molybdenum trioxide (MoO3) and copper oxide (CuO) were used as the starting materials. Carbo-thermal co-reduction of mixed Mo and Cu oxides powders was done with milling followed by a heat treatment at a high temperature. Differential thermal analysis/thermogravimetric (DTA/TG) wa...

Objective(s) Erythropoietin has been shown to exert neuroprotective effects in a variety of CNS injury models. Elevation of serum S100β, as a glial damage marker and myelin basic protein (MBP) has been reported to occur in acute carbon monoxide (CO) poisoning. The aim of this study was to evaluate the effect of erythropoietin (EPO) on serum S100β and MBP levels after CO poisoning in rats. Mat...

For the Ti-Al-0-C-system it is shown that it is possible to produce good quality deposits of both single-phase TiAlOC or A1203-layers and heterogeneous layers of TiAlOC and A1203 under normal pressure-CVD-conditions using a reaction gas mixture of TiC14, AlC13, H2 and a CO/C02-mixture.

We study the non-equilibrium dynamics of a one-dimensional interacting particle system that is a mixture of the voter model and exclusion process. With the process started from a finite perturbation of the ground-state Heaviside configuration consisting of 1s to the left of the origin and 0s elsewhere, we study the relaxation time τ , that is, the first hitting time of the ground-state configur...

We consider the problem of learning object arrangements in a 3D scene. The key idea here is to learn how objects relate to human poses based on their affordances, ease of use and reachability. In contrast to modeling object-object relationships, modeling human-object relationships scales linearly in the number of objects. We design appropriate density functions based on 3D spatial features to c...