We introduce a method to enhance the luminescence of GaN-based LEDs by combining the direct heteroepitaxy laterally overgrowth (DHELO) technique with selective wet etching process. The epitaxial overgrowth of GaN layers on sapphire substrate with SiO2 micro-rods array exhibited a reduced dislocation density and improved the crystal quality. The EL intensity of LEDs with SiO2 micro-rods array wa...

Dual membrane hybrid systems generally produce reclaimed water for non-potable uses by blending microfiltered biologically treated sewage effluent (BTSE) and reverse osmosis (RO) permeate. This is found to contain a significant amount of micro-pollutants, which possibly cause toxicity effects aquatic organisms plants when exposed it. Therefore, removing such pollutants from the before reaching ...

With development of technology and science and continuous increase in productivity, product life cycles are shortened and customer demands are more personalized and diversified, which makes companies face with ever changing and unpredictable competitive environment. Therefore, rapid response to market competition has become one of the main focuses and the competitive advantages. Today, one of t...

The chance to influence the lives of a million children comes once in a generation. With the partnership between the BBC and several technology companies, a small device, the BBC micro:bit will be given to a million children in the UK in 2016. Moreover, using the micro:bit will be part of the curriculum. This demo describes the BBC micro:bit together with its software platform, based on Microso...

The trend to miniaturization cannot be overseen. The use of very small electronic and electro-optical components in a variety of consumer and investment goods is leading to an increasing demand for small-scale servo actuators for micro assembly applications in production equipment. The previous generation of micro gears and micro actuators was not suited to this type of application, because of ...

Overexploitation and climate change accelerate the degradation of Jordan's arid rangelands. Uncovered crusted soils increase runoff erosion hinder emergence native vegetation. Micro water harvesting combined with shrub-seedling plantation have been widely applied to reverse land trends. However, consequential soil vegetation dynamics rarely assessed, which constrains further out-scaling rehabil...

akin type (asymmetric) reverse osmosis membranes undergo an irreversible osmotic dehydration upon coming into contact (skin side) with salt solutions. the extent of consequent changes (in appearance; decrease in linear dimension, water flux and salt rejection) are dependent on the salt concentration. these observations are correlated with the expected morphological changes taking place during d...

nowadays cmm machines are widely used in surface measurement and inspection. as inspection results from cmm machine are obtained by the means of measuring surfaces with direct contact, they are more precise than non-contact method (like optical measurement). however, cmm machines give more reliable and accurate results rather than non-contact methods but also these results come with error when ...

background: l-menthol [(1r,3r,4s)-(-)-menthol] is a flavoring that is the main component of mint herb essential oils, especially of the mentha piperita and mentha arvensis species. its low solubility in aqueous systems makes precise formulation necessary in the final products. of the methods available for fabrication of nanoparticles for use in pharmaceuticals, electrospraying is easy and requi...

as it is seen, by passing the evolutionary process of banding of orthodontic attachments to the bonding ones, orthodontics have witnessed many developments, such as application of new adhesives, optimized base designs, new bracket materials, curing methods and more efficient primers. the studies often address the morphological, micro-leakage, and shear bond tests to evaluate bond efficacy. amon...