World Journal of Engineering: Volume 9 Issue 3

High molecular weight soft segment based polyethylene shape memory polymers

Manzoor Ahmad, J. Luo, Ben Xu, Hendra Purnawali, Peter King, Paul Chalker, Yongqing Fu, Weimin Huang, Moshen Miraftab

Shape memory polyurethanes (SMPUs) are typically synthesized using polyols of low molecular weight, Mw, and high hydroxyl number as it is believed that high density of cross-links…

Computations of gas exchange, heat release and transfer processes in engine fuelled with diesel or CNG

Alberto Boretti

The paper focuses on the conversion of a Diesel engine to CNG, with emphasis on the use within Australia where the refueling network is scarce, and the developments needed in the…

Cascade of two-input nonlinear logic in designing space compression networks in VLSI

Sunil Das, Satyendra Biswas, Voicu Groza, Mansour Assaf

Realizing aliasing-free space compressor for built-in self-testing of very large scale integration circuits and systems is of immense practical significance, especially due to the…

Non-Markovian evolution approach to structural modeling of material fracture

V. Lepov, A. Loginov

The new multiscale non-Markov evolution modeling approach for damage accumulation and fracture processes of polycrystalline and ultra fine grained materials is proven by…

Advance of mining technology for coals under buildings in China

Yuzhuang Sun, Piaopiao Duan, Xinwang Li, Jinxi Wang, Xiaoli Deng

In China there are large amounts of coal located underneath buildings. In this article the severity of the problem is studied, and the characteristics of the mining technology…

Simulative analysis of flow through exhaust manifold for improved volumetric efficiency of multi cylinder petrol engine

V. Pravin, K. Umesh, K. Rajagopal, P. Veena

In internal combustion engines, exhaust system plays a vital role in the improvement of the combustion efficiency. A good conditioned exhaust manifold increase the performance of…

Study on evaluation of building energy efficiency rate using BIM based simulation tool

Sang-Tae No

Energy saving of buildings is a big issue because building energy occupies about 25% of national energy. To reduce building energy, many countries try to control building energy…

Poly(vinyl butyral)-zirconia hybrid films formed by sol-gel process

Koji Nakane, Kosuke Mizutani, Ruonan Zhang, Kenta Sugimoto, Nobuo Ogata

A sol-gel process has been successfully utilized to form hybrid materials of poly(vinyl butyral) (PVB) and zirconium dioxide (zirconia). The gelation occurred due to the…

Mechanical behavior and calculating methods of large diameter prestressed concrete cylinder pipe (PCCP)

Yuliang Wang, Yancang Li, Yongqing Bi

Prestressed Concrete Cylinder Pipe (PCCP) is a kind of high quality composite pipe, whose mechanical behavior is not uniform because of its complicated structure and work…

Improved Genetic Algorithm and its application in optimization of frame structures

Shujing Zhou, Beibei Yang

To overcome the problems of premature convergence and lower local search ability of the Genetic Algorithm (GA), an improved GA based on the Fish Algorithm was proposed. The new…

Morphological, electrical and optical properties of γ- copper (I) iodide thin films by mist atomization technique

M. Amalina, M. Rusop

This research focuses on the effect of molar concentration of CuI thin film deposited by mist atomization technique. The result shows the CuI thin film properties strongly depends…

New quantum key distribution study for world covers security communications

S. Aris, A. Messai, H. Mokhtari, M. Benslama

The use of LEO satellite systems has become widespread throughout the world, not only from the services standpoint but in large scale communication networks as well, as they make…