World Journal of Engineering: Volume 11 Issue 2

Effects of electrode type on the mechanical properties of weldments of some steel samples produced in Nigeria

Bayo Okediran, Danjuma Yawas, Ibraheem Samotu, I. Dagwa, David Obada

The effects of electrode types on the mechanical properties of weldments produced from three steel samples made locally in Nigeria have been investigated. Oerlikon, Santan, Power…

Evaluation of change in color of denim fabric after various industrial washing processes with different fiber composition

Mushtaq Mangat, A. Abbasi, Jakub Wiener

Traditional denim made by using 100% cotton and novel denim made by using cotton in warp and spun PP in the weft were treated in 11 different ways on industrial garment washing…

Nanoprofiles of TiO2 films deposited by PLD using an evanescent light method

N. Mirchin, A. Peled, J. Azoulay, L. Duta, G. Dorcioman, A. Popescu, I. Mihailescu

TiO₂ thin films were deposited by Pulsed Laser Deposition (PLD) on glass substrates at 27°C and 100°C. The extraction efficiency of evanescent light from the deposited nanolayers…

Effect of heat treatments on the residual stresses in a welded joint

M. Zaoui, N. Menasri

The welds are the site of high residual stresses, localized in the vicinity of the weld cracks. Their presence caused many type of damage mode as stress corrosion, fatigue, sudden…

Comparison of high temperature oxidation of nanocrystalline FeCr alloy consolidated by spark plasma sintering and hot pressing

D. Sebayang, Deni Khaerudini, M. Othman, S. Hasan, S. Mahzan, D. Fredrick, T. Sujitno, P. Untoro

The oxidation kinetics and microstructure characteristics of oxide scales thermally grown on the surface of developed FeCr alloy were investigated at 900 °C. The influence of…

The influence of thermal treatment conditions on the properties of TiO2 ceramics

Inga Narkevica, Jurijs Ozolins, Kristaps Rubenis, Janis Kleperis, Janis Locs, Liga Berzina-Cimdina

The influence of thermal treatment conditions on titanium dioxide ceramics phase transformation, microstructure, physico-mechanical and electrical properties was studied. TiO₂…

Wear behaviour of polyurethane composites with respect to the other mechanical properties

Anna Porąbka, Vasiliki-Maria Archodoulaki, Wolfgang Molnar, Jadwiga Laska

Two series of polyurethane matrix composites were prepared. As generally resistant to wear, the PUs can be used as matrices for wear protective and load-bearing composites. The…

Quantitative identification and research of mixed-source natural gas-example of natural gas in Jingbian gas field

Yifeng Wang, Jian Li, Jianfa Chen, Chengshan Li

It is shown in natural gas proportion mixing experiments that a mixed-source natural gas is the physical combination of end member gas. Both the carbon and hydrogen isotopes in…

Coupling remote sensing data and eco-hydrological model to evaluate Non-point source pollution risk for water resource management

Shudong Wang, Lifu Zhang, Xia Zhang, Wanqing Li, Tong Shuai, Haitao Zhu, Xiaoping Chen

Non-point source pollution risk assessment for surface drinking water catchments is an important basis and premise for the scientific management over water environment, while…

Study on distributed privacy preserving data mining

Binli Wang, Yanguang Shen

Recently, with the rapid development of network, communications and computer technology, privacy preserving data mining (PPDM) has become an increasingly important research in the…

Basic garment pattern design and the development for the standard figure

Amal Fayoomy, Ahmad Tahan

It is common that the measurements of any human Figure are differing from the others with same size. Based on the parameters of flat curves and measurements of the flat pattern…

Analysis and design of a PWM chopper-on/off control via a second order filter

Abdelouahab Zaatri, Souad Belhour

This paper presents the analysis of a nonlinear on/off control system including a filter of a second order in the closed loop. The proposed system is capable of generating a pulse…

Impact of stitch length on sewing needle temperature

Adnan Mazari, Antonin Havelka

In this article the sewing needle heat is measured without sewing thread and with sewing thread at different stitch density (stitches per inch or SPI) of lock stitch sewing…