Executive Summary Biochar is an increasingly popular topic in environmental management due to its potential effects on several ecosystem functions. Specifically, biochar has been linked to significant reductions in greenhouse gas emissions, including nitrous oxide, carbon dioxide and methane when used as a soil amendment. It has also been suggested as a long term mechanism to sequester carbon i...

We present a technique for extracting structural features from cursive Arabic script. After preprocessing, the skeleton of the binary word image is decomposed into a number of segments in a certain order. Each segment is transformed into a feature vector. The target features are the curvature of the segment, its length relative to other segment lengths of the same word, the position of the segm...

In this study, ash transformation and release of critical ash-forming elements during single-pellet combustion different types agricultural opportunity fuels were investigated. The work focused on potassium (K) phosphorus (P). Single pellets poplar, wheat straw, grass, grain residues combusted in a macro-thermogravimetric analysis reactor at three furnace temperatures (600, 800, 950 °C). order ...

In this paper we begin a classification of simple and semisimple totally antiflexible algebras (finite-dimensional) over splitting fields of char. ^2, 3.. For such an algebra A , let P be the largest associative ideal in A and let /V+ be the radical of P. We determine all simple and semisimple totally antiflexible algebras in which N ■ N =0. Defining A to be of type (m, n) if N is nilpotent of ...

To improve the flame retardancy of bamboo materials, layer by (LbL) self-assembly phytic acid (PA)-polyethyleneimine (PEI) on surface shaving super specimens with different solution concentrations PA-PEI and times LbL was completed in this study. Fourier transform infrared analysis results showed that PEI well assembled to a hydrogen bond PA as intermediation. The application significantly prom...

as dyes are the most important pollutants of many industrial wastewaters. a large amount of reactive black 5 enters the environment in iran because of the use of this dye in iran's textile industries, so the goal of this study was to survey the catalytic ozonation process with bone char in removal of reactive black 5 dye from synthetic wastewater. in this experimental study bone char (bc) was p...

An action of a finite dimensional Hopf algebra H on a noncommutative associative algebra A is considered. Properties of A , the subalgebra of invariants in A, are studied. It is proved that if A is integral over Z(A), the centre of an algebra A, then A is integral over Z(A) H , the subalgebra of invariants in Z(A), for each of three cases: 1. the coradical H0 is cocommutative and char k = p > 0...

Measuring and comparing performance, cost, and other attributes of SpaceWire networks is a significant challenge. A new benchmark for SpaceWire-based satellites is presented. The benchmark contains a potential architecture of a multi-mission satellite, as well as specifications of the traffic flow. The proposed benchmark is demonstrated on an OPNET-based network simulation for various network c...