This decommissioned ERA site remains active temporarily to support our final migration steps to https://ualberta.scholaris.ca, ERA's new home. All new collections and items, including Spring 2025 theses, are at that site. For assistance, please contact erahelp@ualberta.ca.
Search
Skip to Search Results- 118Chemical and Materials Engineering, Department of
- 113Chemical and Materials Engineering, Department of/Research Articles and Materials (Chemical and Materials Engineering)
- 8Surgery, Department of
- 8Surgery, Department of/Orthopaedic Surgery
- 5Chemical and Materials Engineering, Department of/Process Systems Engineering
- 3Human Ecology, Department of
- 14Rapid Solidification
- 12Impulse Atomization
- 11Undercooling
- 8Cryopreservation
- 7Atomization
- 7Microstructure
-
Evaluation of Cold-Wire Addition Effect on Heat Input and Productivity of Tandem Submerged Arc Welding for Low-Carbon Microalloyed Steels
Download2016-01-01
Mohammadijoo, M., Ivey, D.G., Collins, L., Henein, H.
The addition of a cold wire in conventional tandem submerged arc welding (TSAW), i.e., the CWTSAW process, is proposed to improve the productivity of pipeline manufacturing by increasing welding travel speed and deposition rate, while retaining adequate joint geometry without increasing the...
-
Microstructure and Mechanical Characterization of Rapidly Solidified Cr-C Tool Steel - Annealing Effects
Download2016-01-01
Delshad Khatibi, P., Phillion, A.B., Henein, H.
The effect of isochronal annealing on D2 tool steel powder, rapidly solidified via both Impulse Atomization and Water Atomization, has been evaluated using high-resolution scanning electron microscopy and Vickers microhardness. The amount of supersaturation of the alloying elements inside the...
-
2016-01-01
Bedel, M., Reinhart, G., Bogno, A.-A., Gandin, Ch.-A., Jacomet, S., Boller, E., Nguyen-Thi, H., Henein, H.
The Impulse Atomization process developed at the University of Alberta (Canada) enables metallic powders to be solidified with well controlled process parameters. The inner microstructure of several droplets of Al-4.5wt.%Cu alloy produced by this technique has been investigated by using both...
-
2016-01-01
Bogno, A.-A., Riveros, C., Henein, H., Li, D.
This paper investigates amorphous phase formation and rapid solidification characteristics of a CoCr alloy. High cooling rate and high undercooling-induced rapid solidification of the alloy was achieved by impulse atomization in helium atmosphere. Two atomization experiments were carried out to...
-
Efficient photoinduced charge transfer in chemically-linked organic-metal Ag-P3HT nanocomposites
Download2016-01-01
Feng, Lin, Chen, Ming, Zheng, Fei, Niu, Meng-Si, Zhang, Xuehua, Hao, Xiao-Tao
A novel nanocomposite of P3HT and Ag nanoparticles (Ag-P3HT) has been synthesized by laser ablation. The fluorescence wavelength of the nanocomposite can be tuned by varying the ablation duration. The steady-state emission maximum at 580 nm for pristine P3HT shows significant blueshift to...
-
A Long-Short Term Memory Recurrent Neural Network Based Reinforcement Learning Controller for Office Heating Ventilation and Air Conditioning Systems
Download2017-08-18
Yuan wang, Kirubakaran Velswamy, Biao Huang
Energy optimization in buildings by controlling the Heating Ventilation and Air Conditioning (HVAC) system is being researched extensively. In this paper, a model-free actor-critic Reinforcement Learning (RL) controller is designed using a variant of artificial recurrent neural networks called...
-
2017-01-01
Valloton, J., Herlach, D.M., Henein, H., Sediako, D.
Rapid solidification of D2 tool steel is investigated experimentally using ElectroMagnetic Levitation (EML) under terrestrial and reduced gravity conditions and Impulse Atomization (IA), a drop tube type of apparatus. IA produces powders 300 to 1400 μm in size. This allows the investigation of a...
-
2017-01-01
Zhang, Lijuan, Zhang, Yuebin, Cheng, Jie, Wang, Lei, Wang, Xingya, Zhang, Meng, Gao, Yi, Hu, Jun, Zhang, Xuehua, Lü, Junhong, Li, Guohui, Tai, Renzhong, Fang, Haiping
Biologically inert gases play important roles in the biological functionality of proteins. However, researchers lack a full understanding of the effects of these gases since they are very chemically stable only weakly absorbed by biological tissues. By combining X-ray fluorescence, particle...
-
2017-01-01
Spinelli, J.E., Hearn, W., Bogno, A.-A., Henein, H.
Understanding the influence of rapid solidification conditions on the formed microstructure is important to determine how process conditions affect the final mechanical properties. In this work the rapid solidification of hypoeutectic and hypereutectic Al-xSi (x=10wt. %, 18wt %) alloys was...