World Journal of Engineering: Volume 9 Issue 5

Fiber/wireless-optic and related microwave transmission using composite/nanomaterials-an overview

Otto Strobel, Jan Lubkoll, Christian Betz, Elke Dietrich

The idea of this paper is to present optical and microwave systems making use of new materials. Materials science as an interdisciplinary field has pushed on the development of…

Compacted nanosilica-talc /calcium carbonate polyacrylate composites prepared using accelerated sedimentation

Norlinda Daud, Robert Shanks, Ing Kong

The effectiveness of centrifugation as the compacting method in preparing high filler composites has been investigated. Different size and shape of fillers were used to ensure…

Sign changes of seebeck coefficients due to extrinsic-to-intrinsic transition for PbTe nanocrystals

Wenwen Zhou, Ting Sun, Huey Hng, Wenjing Zhang, Yang Zhao, Hua Zhang, Jan Ma, Qingyu Yan

Three types of PbTe samples, e.g. nanoparticles, nanowires and bulk ingots, have been prepared. The investigation of the Seebeck coefficient of PbTe nanoparticles and nanowires…

Study of nanostructured polymeric composites used for organic light emitting diodes and organic solar cells

Do Chung, Nguyen Dinh, Tran Thao, Nguyen Nam, Tran Trung, David Hui

Polymeric nanocomposite films from PEDOT and MEH-PPV embedded with surface modified TiO₂ nanoparticles were prepared, respectively for the hole transport layer (HTL) and emission…

Effect of web formation on properties of hydroentangled nonwoven fabrics

Paul Sawhney, Hiram Allen, Michael Reynolds, Ryan Slopek, Brian Condon, David Hui, Suhad Wojkowski

The aim of this study was to determine the effects of two popular web-forming technologies, viz., the Rando air-laid technology and the traditional carding and cross-laying…

Design and development of programmable frequency synthesizer for WiMAX/WiFi wireless communication

S. Devendra, K. Verma, P. Barhai

Rapid advancements in nanotechnology are going to bring radical changes in the society and particularly in wireless communication where small, smart and speedy systems are…

Properties and applications of non-shrinkage chemical grout for repairing and strengthening of concrete structures

H. Ju, D. Lee, K. Kim, D. Kim, J. Kwak

Epoxy resins are widely used in structural repairing and strengthening work, but most of them typically require primer works and are vulnerable to water. To overcome such limits…

Elastic buckling of web-post in cellular beams with various opening shapes

Mostefa Mimoune, Saad Siouane, Fatima Mimoune

This paper develops a finite-element model using ANSYS for the buckling analysis of perforated beams and uses it to investigate the effects of slenderness on the moment-gradient…

Reservoir history matching using a stochastic method

Xia Yan, Kai Zhang, Mudassir Nawaz, Sanchit Rai

In reservoir history matching the least square objective function is usually used to minimize the mismatch between the predicted production data and the observations. However, as…

Computational methods for vibrations and noise reduction of textile machines

Vlastimil Votrubec, Martin Pustka, Pavel Šidlof

This paper deals with computational methods that lead to vibrations and noise reduction of textile machines. The reduction is achieved by dynamic balancing of the machine and by…

Properties of knitted fabrics produced by kapok blended yarns

M. Üzümcü, Tuba ÜTE, Pınar Çelik, Nida Oğlakcioğlu, Hüseyin Kadoğlu

In need of improving the properties of textiles, researchers investigate how to obtain surface with better mechanical and physical characteristics. On the other hand, for clothing…

Optimization application of air-jet nozzle in ring spinning system

Guocheng Zhu, Sayed Ibrahim, Kremenakova

The application of air-jet nozzle in ring spinning system has been turned up in the last decade, and the greatest advantage reported is the reducing of hairiness. In this paper…