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Retaining Teachers Of Color:A Pressing Problem And A Potential Strategy For "Hard-to-Staff" Schools
teachers of color retention diversity new teachers
2015/11/9
Given calls to diversify the teaching workforce, this review examines research on retention and turnover of teachers of color, focusing on new teachers because they leave at disproportionately high ra...
Different techniques of oil extraction are applied in Jordan, including traditional press, two- and three-phase systems. Results of the study indicated that there is a significant difference in olive ...
Determination of the pressing parameters of spruce water-resistant plywood
veneer plywood construction statistical evaluation
2015/3/6
The paper summarizes results of operations aimed at determining the pressing parameters of spruce water-resistant plywood and testing the suitability of particular constructions of plywood. Constant a...
Effects of different pressing conditions on properties of spruce plywoods
plywood plywood density bending strength
2015/3/3
The paper presents results of an institutional research aimed at assessing the effect of different technological
conditions in pressing on physical and mechanical properties of plywood sheets. Spruc...
Optimization of Oil Extraction from Nigella sativa Seeds by Pressing Using Response Surface Methodology
Nigella sativa Seeds Pressing
2016/6/2
The oil of Nigella sativa seeds was extracted using hydraulic press. The pressure, temperature and thickness of cake have been optimized, using the Response Surface Methodology to obtain a high oil yi...
Quality of wheat germ oil obtained by cold pressing and supercritical carbon dioxide extraction
fatty acid profile α -tocopherol
2014/2/24
Laboratory-prepared wheat germ oil was obtained by cold pressing and supercritical CO2 extraction. The main objective was to compare the quality of both oil samples obtained, with emphasis on their fa...
Grain refinement in AZ31 alloy processed by equal channel angular pressing
AZ31 magnesium alloys Equal channel angular processing Grain refinement Microstructure
2010/8/16
Magnesium alloys, as a one of the lightest structural materials known as an energy-saving “green materials”, are increasingly used in many industries, particularly in automotive, electronics and aeros...
Investigation of Influences of Pressing Pressure and Sintering Temperature on the Mechanical Properties of Al-Al4C3 Composite Materials
Mechanical alloying Aluminum Carbide Mechanical properties
2009/10/12
In this study, Al powders containing 3% wt carbon black were mechanically alloyed in a high energy ball mill for 20 h. Mechanically alloyed powders were compacted at various pressures (400, 500, 600, ...
对葵花籽散粒体侧限压榨下的应力—应变关系和侧向压力进行了试验。根据侧限压榨符合三次幂曲线模型的试验结果，采用Kuhn屈服准则并结合实际侧限压榨过程中的粘弹塑性过程，确定主要塑性模型的参数,建立了基于增量理论的葵花籽散粒体侧限压榨本构方程。并通过试验得出了葵花籽应变的理论计算值与试验实测值最大相对误差为19.7%，平均相对误差5.3%，验证了基于Kuhn屈服准则建立的压榨模型能较好地描述葵花籽压榨过...
Deformation Behavior of Wood by Roller Pressing
wood roller press compression deformation behavior bending property
2009/3/6
We investigated the deformation behavior of wood being pressed perpendicular to the grain and the bending properties of the wood after pressing. Sugi (Cryptomeria japonica D. Don) flat-sawn timber pr...
Liquid Impregnation of Green Wood using a Roller-pressing Method
refractory wood green wood roller press impregnation cyclic compression
2009/3/6
Phenol-formaldehyde resin (PF resin) solution was impregnated by a roller-press into Sugi (Cryptomeria japonica D. Don) sapwood, spruce (Picea spp.) heartwood, and Douglas-fir (Pseudotsuga menziesii F...
How Pressing is it to Revisit the Treatment of Capital Gains?
Revisit the Treatment Capital Gains
2014/8/5
In 2006, the federal government affirmed an objective of reducing taxes on savings, including those which result from capital gains. Since that time, a number of well-received tax relief measures have...
LAND USE REGULATIONS SHOULD PRESERVE ONLY VITAL AND PRESSING GOVERNMENTAL INTERESTS
LAND USE REGULATIONS natural resource private marketplace
2008/11/27
The Failure of Planning
Land is a precious and scarce natural resource. It should be used
to best provide for the needs and desires of the people. This objective
will best be realized if the use an...
Microstructure evolution and mechanical behavior ofAZ31 Mg alloy processed by equal-channel angular pressing
AZ31 Mg alloy equal-channel angular pressing(ECAP) superplasticity microstructure
2010/3/17
AZ31 Mg alloy bar was subjected to 8-pass equal-channel angular pressing(ECAP) at 623 K. Microstructure evolution was observed by optical microscopy(OM) on cross section and X-ray diffraction analysis...
Pressure During Pressing of 290-Kilogram Stirred-Curd Cheddar Cheese Blocks
pressure curd whey cheese
2008/3/22
Pressure in the center and side of 290-kg stirred-curd Cheddar cheese blocks was determined during 2 h of pressing at 12 kPa of cheese surface pressure. A strain-gauge pressure transducer and data log...