BACKGROUND Flow cytometric sorting can be used to separate sperm based on sex chromosome content. Differential fluorescence emitted by stained X- vs. Y-chromosome-bearing sperm enables sorting and collection of samples enriched in either X- or Y-bearing sperm for use to influence the likelihood that the offspring will be a particular sex. Herein we report the effectiveness of flow cytometric so...

Four different magnet bearing configurations, with varying number of combined radially and axially magnetized rings, are studied both experimentally using the modeling framework MagTense. First, optimal vertical position ring is determined numerical model. Then, model validated experimental data. Finally, we show that a where rotor stator each consist single magnets has smallest radial force pe...

the persian walnut (juglans regia l.) is one of the most important horticultural crops grown in iran. this research was conducted to determine the variation in walnut germplasm grown in the arak region of iran during the 2007-2008 growing seasons. all of the selected genotypes originated from seed, and their phenological and pomological characteristics were evaluated. results indicated that the...

The sex-ratio trait, reported in a dozen Drosophila species, is a type of naturally occurring meiotic drive in which the driving elements are located on the X chromosome. Typically, as the result of a shortage of Y-bearing spermatozoa, males carrying a sex-ratio X chromosome produce a large excess of female offspring. The presence of sex-ratio chromosomes in a species can have considerable evol...

Squeeze Film Dampers (SFD) are commonly used for passive vibration control of rotor-bearing systems. The Magnetorheological (MR) and Electrorheological (ER) fluids in SFDs give a varying damping characteristic to the bearing that can provide active control schemes for the rotor-bearing system. A common way to model an MR bearing is implementing the Bingham plastic model. Adding this model to th...

Earth reinforcing techniques have become useful and economical to solve problems related to difficult grounds and provide satisfactory foundation performance. In this context, this paper uses radial basis function neural network (RBFNN) for predicting the bearing pressure of strip footing on reinforced granular bed overlying weak soil. The inputs for the neural network models included plate wid...

PURPOSE To determine the effectiveness and safety of interventions used for rehabilitation after open reduction and internal fixation of ankle fractures. METHODS A systematic review and meta-analysis was performed using both randomized trials and cohort studies. The effect of mobilization, weight-bearing, and unprotected weight-bearing as tolerated on postoperative recovery was compared using...

This study used a finite element analysis approach employing Plaxis 3D to analyze the stress concentration ratio, critical parameter in geotechnical engineering, examine stresses operating on stone columns and soft soils. also looked at effect of stiffness ratio between column neighboring soil. With same length three different diameters, 0.8 m, 1.0 1.2 or area replacement ratios ranging from 7%...

Results are presented for laboratory model tests conducted to determine the ultimate bearing capacity of an eccentrically loaded strip foundation supported by geogridreinforced sand. Only one type of sand at one relative density of compaction and one type of geogrid were used for the tests. The depth of the foundation was varied from zero to B (width of foundation). Based on the laboratory test...

This study gives the reliability analysis of bearing capacity of large-diameter piles under osterberg test. The limit state equation of dimensionless random variables is utilized in the reliability analysis of vertical bearing capacity of large-diameter piles based on Osterberg loading tests. And the reliability index and the resistance partial coefficient under the current specifications are c...