Results 21 to 30 of about 138,754 (265)

Plastic and the work of the biodegradable [PDF]

, 2013
This chapter was originally presented at the seminar, 'Accumulation: The Material Ecologies and Economies of Plastic, co-organised with Gay Hawkins at the University of Queensland and Mike Michael through the Centre for Invention and Social Practice at Goldsmiths, University of London (21 June 2011).\ud \ud Plastics are material substances often ...
openaire   +3 more sources

The Structural and Strength Changes Resulting from Modification of Heat Treatment of High Carbon Steel

Archives of Metallurgy and Materials, 2016
Pearlitic steels containing from some 0,8 to 0,95% C belong to the group of unalloyed steels intended for cold drawing or rolling. One of the problems discussed in literature is cracking of pearlitic steel subjected to plastic working, caused by high ...
Grygier D., Rutkowska-Gorczyca M., Jasiński R., Dudziński W.   +3 more
doaj   +1 more source

The influence of cooling rate and heat treatment on microstructure and mechanical properties of Al-Si-Cu alloy castings made in gypsum molds

Metalurgija, 2021
The influence of cooling rate and heat treatment on the mechanical properties of Al-Si-Cu alloy castings made in gypsum molds were presented in the article.
L. Bernat
doaj  

Pressure-Relief Mechanism and Application of Large-Diameter Boreholes in Coal Seams with Rockburst Hazard

Geofluids, 2021
Drilling of large-diameter boreholes is regarded as an effective measure for rockburst prevention. By investigating the morphological characteristic and evolution of plastic zone in borehole surrounding rock, the pressure-relief mechanism of large ...
Zhen Hao, Guangzhong Sun, Haihang Wei, Jiayu Liu, Maolin Tian, Shuaiyi Liu, Yikun Xu   +6 more
doaj   +1 more source

The Development and Numerical Analysis of the Conical Radiator Extrusion Process

Archives of Metallurgy and Materials, 2017
The article presents a newly developed method for single-operation extrusion of conical radiators. This is the author’s radiator manufacturing method being the subject of a patent application.
Michalczyk J.
doaj   +1 more source

Study on Plastic Zone Distribution Characteristic of Coal and Rock Mass in Excavation from Crosscut Coal

Geofluids, 2020
Coal and gas outburst is a serious disaster in the mining, and crosscut coal is the most prone to cause the coal and gas outburst. In order to study the mechanism of outburst, this paper studied the stress distribution characteristics in front of the ...
Chengwu Li, Xiaoqian Zhang, Chengmin Wei, Yao Nie   +3 more
doaj   +1 more source

The Plastic Surgery Workforce and Its Role in Low-income Countries

Plastic and Reconstructive Surgery, Global Open, 2021
Background:. Plastic surgery varies in scope, especially in different settings. This study aimed to quantify the plastic surgery workforce in low-income countries (LICs), understand commonly treated conditions by plastic surgeons working in these ...
Paul Truche, MD, MPH, Ellie Moeller, BS, Taylor Wurdeman, MD, MPH, Kathrin Zimmerman, BA, Norma Cruz, MD, Kiran Nakarmi, MS, MCh, Shankar M. Rai, MBBS, MS, Yegeremu Eado, MD, Laura Pompermaier, MD, PhD, John G. Meara, MD, MBA, D. Scott Corlew, MD, MPH   +10 more
doaj   +1 more source

Influence of Preaging Treatment on Bake-Hardening Response and Electrochemical Corrosion Behavior of High Strength Al-Zn-Mg-Cu-Zr Alloy

Metals, 2019
The influence of preaging (PA) treatments on the bake hardening (BH) response of a AlZnMgCuZr aluminum alloy which served as automotive body structures were studied in this paper.
Hui Li, Xiao-Teng Liu, Jia-Yi Wang
doaj   +1 more source

Seasonal Rise in Plastic Surgery during Ramadan: A Cross-sectional Survey

Plastic and Reconstructive Surgery, Global Open, 2022
Background:. While demand for plastic surgery continues to rise worldwide, there are no known seasonal differences in plastic surgery volume. This study aimed to evaluate whether Ramadan was associated with a measurable rise in demand for plastic surgery.
Adnan G. Gelidan, MD, FRCSC, FACS
doaj   +1 more source

Grain Damage in Low­Speed Collision with the Surfaces of the Hoisting­and­Transport Machines Working Parts

Сельскохозяйственные машины и технологии, 2020
To reduce the damage level of wheat grains during its post-harvest processing, it is proposed to replace steel working parts in lifting and transporting machines with polymer ones.(Research purpose) Experimentally determine the dependence of the degree ...
V. I. Pakhomov, S. V. Braginets, E. V. Benova, O. N. Bakhchevnikov, D. S. Podlesnyy   +4 more
doaj   +1 more source