Mehvish Taqi

Comparison on Single Basin Double Slope Glass Passive and Active Solar Still with Different Depths of Water Layer

Introduction Need of pure water is important in day-to-day life. The availability of drinking water per capita is shrinking because of population growth. The possible water sources are the rainwater, bore wells and river or lake water. This surface water must be purified for human consumption. This may involve removal of dissolved substances and harmful bacteria. Popular and generally used …

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The Era of Nanotechnology Applications

Introduction Nanotechnology, or nanotech, is the study and design of machines on the molecular and atomic level. To be considered nanotechnology, these structures must be anywhere from 1 to 100 nanometers in size. A nanometer is equivalent to one-billionth of a regular meter, which means that these structures are extremely small. Researcher K. Eric Drexler [1] was the first person …

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Comparative Analysis of Speech Pattern Recognition Algorithms for Efficient Speech Recovery

Introduction The various studies in speaking recognition field, as well as studies in other fields, follow two trends: fundamental research whose goal is to devise and test new methods, algorithms and concepts in a non-commercial manner and applied research whose goal is to improve existing methods, following specific criteria. This paper deals with isolated words recognition within applied research trends. …

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Study the Mechanical Properties of (PVA/Si) Composite Prepared by Casting Method

Introduction The sol-gel casting method is widely used in the preparation processes for inorganic/organic composites. The advantages of the sol-gel method are that the synthesis process is done at room temperature and organic polymer can be introduced at the initial stage in which the particles of solution kept in the homogeneous dispersed state1. PVA is a water-soluble synthetic polymer, due …

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Experimental Study of Flow Characteristics of a Symmetric Y-Shaped Intake Diffusing Duct with 600 mm Cl & 764 mm Rc at Different Cross Sections

Introduction Study of flow characteristics of aircraft intake ducts has become an interesting and challenging subject after rapid development of Jet engines and their performance. Air intake is a crucial component of the propulsion system of modern combat aircraft. The Y-shaped ducts are used as intake ducts in aircrafts as well as in air-conditioning ducts. These ducts fulfill the requirements …

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Design and Performance of A Biomass Briquette Based Throatless Downdraft Gasifier

Introduction The unstable political and economical relations between the gulf countries and other counties that import oil from them forces the latter to search for new options of energy generation. The renewable sources of energy are environmentally friendly. Bioresources comprise of over 220 billion oven-dry tonnes (about 4500 EJ) of annual production and are potentially the world’s largest sustainable source …

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Contribution Carriers over Satellite with Active Transponder Configuration

Introduction Contribution carriers over a transponder constitute uplinks from different ground terminals operating on the frequency division multiplexing mode for data transmission over predefined bandwidth on a transponder of a given satellite. The adapted circuit configuration for the contribution carriers through a satellite link is based on the fact that recent advances in the micro electronic technology have made it …

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Adaptation of Sustainable Neighbourhood Elements (Snes) in Malaysian Urban Neighbourhood Planning

Introduction In recent years, sustainability has been expressed as “development that meets the needs of the present without compromising the ability of future generations to meet their own needs”(Bartlett [1]). Sustainable development is the basic entity for all types of living styles. Putte [2] mentioned that the symptoms of unsustainable development are starting to appear in many places and at …

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Comparative Study of Structural and Optical Properties of Zno Nanoparticles Capped With Hexamine and Tetraoctylammonium Bromide as Surfactants

Introduction In the past, the formation of semiconductor nanostructures with controlled dimension and different morphologies is the point of research. Nanoscale structures are expected to be manipulated into well-defined configuration in order to build integrated systems. Different nanostructures synthesized from semiconductor materials are of particular interest primarily because of their unique physical properties. Among the promising optoelectronic semiconductors, ZnO with …

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