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السجلات المعروضة 1 -- 13 من 13
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A new chaos-based image-encryption and compression algorithm
( Hindawi Publishing Corporation , 2012 , Article)We propose a new and efficient method to develop secure image-encryption techniques. The new algorithm combines two techniques: encryption and compression. In this technique, a wavelet transform was used to decompose the ... -
A sensitivity analysis approach to identify key environmental performance factors
( Hindawi Publishing Corporation , 2014 , Article)Life cycle assessment (LCA) is widely used in design phase to reduce the product's environmental impacts through the whole product life cycle (PLC) during the last two decades. The traditional LCA is restricted to assessing ... -
An Experimental and Kinetic Study of the Sorption of Carbon Dioxide onto Amine-Treated Oil Fly Ash
( Hindawi Publishing Corporation , 2016 , Article)A new CO2 adsorbent is produced from waste oil fly ash (OFA). Ammonium hydroxide solution is used to convert OFA to activated carbon. Then, the product is used for the adsorption of CO2 from a nitrogen/carbon dioxide ... -
Automatic prediction of age, gender, and nationality in offline handwriting
( Hindawi Publishing Corporation , 2014 , Article)The classification of handwriting into different categories, such as age, gender, and nationality, has several applications. In forensics, handwriting classification helps investigators focus on a certain category of ... -
An Autonomous Packet Transmission Strategy for Opportunistic Wireless Sensor Networks
( Hindawi Publishing Corporation , 2012 , Article)We consider a wireless sensor network that comprises a single hop between the sensor nodes and the central controller node with multiple antennas. In this system model, we concentrate on the single-beam opportunistic ... -
Continuous-Time ΣΔ ADC with Implicit Variable Gain Amplifier for CMOS Image Sensor
( Hindawi Publishing Corporation , 2014 , Article)This paper presents a column-parallel continuous-time sigma delta (CTSD) ADC for mega-pixel resolution CMOS image sensor (CIS). The sigma delta modulator is implemented with a 2nd order resistor/capacitor-based loop filter. ... -
Control of Power Converters for Emerging Applications of Power Electronics
( Hindawi Publishing Corporation , 2016 , Article)With the skyrocketed development in semiconductor devices, power electronics converters, either at system-level or at device-level, are receiving special attention in different applications as renewable energy sources, ... -
Cross-Layer Optimal Rate Allocation for Heterogeneous Wireless Multicast
( Hindawi Publishing Corporation , 2009 , Article)Heterogeneous multicast is an efficient communication scheme especially for multimedia applications running over multihop networks. The term heterogeneous refers to the phenomenon when multicast receivers in the same session ... -
Mechanical and Electrical Properties of Styrene-Isoprene-Styrene Copolymer Doped with Expanded Graphite Nanoplatelets
( Hindawi Publishing Corporation , 2015 , Article)The molecular dynamics of a triblock copolymer and of expanded graphite nanoplatelets were investigated. Composites were prepared using the solution technique. The effects of filler addition and of filler-matrix interactions ... -
Optimal inconsistency repairing of pairwise comparison matrices using integrated linear programming and eigenvector methods
( Hindawi Publishing Corporation , 2014 , Article)Satisfying consistency requirements of pairwise comparison matrix (PCM) is a critical step in decision making methodologies. An algorithm has been proposed to find a new modified consistent PCM in which it can replace the ... -
Optimization and Prediction of Mechanical and Thermal Properties of Graphene/LLDPE Nanocomposites by Using Artificial Neural Networks
( Hindawi Publishing Corporation , 2016 , Article)The focus of this work is to develop the knowledge of prediction of the physical and chemical properties of processed linear low density polyethylene (LLDPE)/graphene nanoplatelets composites. Composites made from LLDPE ... -
Text-dependent writer identification for arabic handwriting
( Hindawi Publishing Corporation , 2012 , Article)This paper proposes a system for text-dependent writer identification based on Arabic handwriting. First, a database of words was assembled and used as a test base. Next, features vectors were extracted from writers' word ... -
Thin, flexible supercapacitors made from carbon nanofiber electrodes decorated at room temperature with manganese oxide nanosheets
( Hindawi Publishing Corporation , 2013 , Article)We report the fabrication and electrochemical performance of a flexible thin film supercapacitor with a novel nanostructured composite electrode. The electrode was prepared by in situ coprecipitation of two-dimensional ...