Coal is mined by both surface and underground methods its extraction normally characterized numerous hazards that can lead to catastrophic accidents, which result in devastating effects such as injuries or fatalities, damage mining assets, destruction of mineral resources. These exist due the ability coal support combustion association with toxic, flammable, explosive gases. Underground entails...

tabas mines in iran have coal sources which are suitable for use in metallurgy industries as coking coal. but the high sulfur content of this coal imposes severe limitations on its utilization as the sulfur oxide gases evolved from the combustion of high sulfur coals result in acid rains and corrosion of equipments. in this work, attempts have been made to reduce sulfur from high sulfur coal of...

This paper deals with two relevant and interrelated directions of coal mining development. Firstly, the resource-saving complete extraction reserves, secondly, intensification activity through operations conducted on several seams. The objective overworking mine workings a real representation mining-and-geological mining-engineering conditions has been formulated. Five peculiarities geomechanic...

Microarray gene expressions provide an insight into genomic biomarkers that aid in identifying cancerous cells and normal cells. In this study, functionally related genes are identified by partitioning gene data. Clustering is an unsupervised learning technique that partition gene data into groups based on the similarity between their expression profiles. This identifies functionally related ge...

Particle sorting methods in microfluidic platforms are gaining momentum for various biomedical applications. Bioparticles are found in different shapes and sizes. However, conventional separation techniques are mainly designed for separation of spherical particles. Thus, there is a need to develop new methods for effective separation of spherical and non-spherical bioparticles for various appli...

This paper aimed to analyze stress distribution in human zygomatic pillar during masseter muscle contraction using three-dimensional finite element analysis. A three-dimensional model and hemi facial skull were produced based on CT-scan data. An adult male skull with structural anatomy integrity was used as model. Muscles forces were applied at origin of elevator muscles and supports was applie...

An advantage of separation platforms based on deterministic micro- and nano-fabrications, relative to traditional systems based on packed beds of particles, is the exquisite control of all morphological parameters. For example, with planar platforms based on lithographically-prepared pillar arrays, the size, shape, height, geometric arrangement, and inter pillar gaps can be independently adjust...

This paper develops a formal model of banking regulation where the interactions between the 3 pillars of Basel 2 can be analyzed. It also provides a formal analysis of the mandatory subdebt proposal and shows that, under certain conditions, Pillar 1 (solvency ratio) and Pillar 3 (market discipline) are partially substitutable. The same is true for Pillar 2 (supervisory action) and Pillar 3. Mor...

Cochlear hair cells (HCs) are mechanosensory receptors that transduce sound into electrical signals. HC damage in nonmammalian vertebrates induces surrounding supporting cells (SCs) to divide, transdifferentiate and replace lost HCs; however, such spontaneous HC regeneration does not occur in the mammalian cochlea. Here, we acutely ablate the retinoblastoma protein (Rb), a crucial cell cycle re...