Off-axis electron holography has been used to measure the width of depletion region in a series tunnel junction GaN light emitting diodes that have prepared using different growth processes for blue emission. The total measured potentials are combinations mean inner potential, dopant and piezoelectric contributions. potential unmixed from such junctions can be measured. experimental results the...

Symmetric edge polytopes, a.k.a. PV-type adjacency associated with undirected graphs have been defined and studied in several seemingly independent areas including number theory, discrete geometry, dynamical systems. In particular, the authors are motivated by study of algebraic Kuramoto equations unmixed form whose Newton polytopes symmetric polytopes. The interplay between geometric structure...

An in vitro model has been devised so that mixtures of human tumor cells can be grown together for studies related to drug-induced or -selected changes in sensitivity. In the studies reported here, two human astrocytoma clones, one sensitive and one resistant to 1-(2-chloroethyl)-3-(4-methylcyclohexyl)-1-nitrosourea (MeCCNU), were carefully matched for doubling times, cell cycle phase distribut...

Home composting systems (HC) are known to facilitate municipal solid waste management, but little is known about their environmental impact including their greenhouse gas emissions (GGE). The present research focused on selecting HC configuration producing the least CH(4) and N(2)O. Thus, 4 HC types were used to compost food and yard waste for 150 days and monitored for CO(2), CH(4) and N(2)O a...

In the last chapter of his book ”The Algebraic Theory of Modular Systems ” published in 1916, F. S. Macaulay developped specific techniques for dealing with ”unmixed polynomial ideals ” by introducing what he called ”inverse systems ”. The purpose of this paper is to extend such a point of view to differential modules defined by linear multidimensional systems, that is by linear systems of ordi...

This letter proposes a fast yet efficient method to solve the hyperspectral unmixing problem in challenging unsupervised context, i.e., when endmember spectral signatures are unknown. First, coarse approximation of image is computed by spatially averaging neighboring pixels, which significantly reduces amount pixels be handled. reduced set unmixed derive solutions problem, estimates and corresp...

The updraft speed is correlated to the total lightning flashes a storm produces. Shear along gradients one of mechanisms responsible for production turbulence kinetic energy (TKE). Thus, radar-estimated eddy dissipation rate (EDR) overlapped with Lightning Mapping Array (LMA) data used evaluate storm's kinematic and electrical relationship. majority sampled shows higher intensities close initia...

Biofuel is an option to reduce CO2 generated by vehicles. In this study, synthetic crude furfural from cassava stems was blended as fuel additive gasoline (Pertalite) and then induced electromagnetic field. Analysis were carried out on engine performance exhaust emissions produced Kohler engines. Variations formed samples commercial (C5H4O2), time variations of induction for 0 30 minutes. The b...

All process industries involve the usage of heat exchanger equipment and understanding its performance during design phase is very essential. The present research work specifies a pure cross flow in terms dimensionless factors such as number transfer units, capacity rate ratio, effectiveness. Steady state sensible was considered analysis. matrix approach that established earlier used study. res...