Results 31 to 40 of about 196,563 (286)

Rheo-diecasting AZ91D magnesium alloy [PDF]

open access: yes, 2007
Magnesium recycling has become more important in today’s environmentally aware society. To prompt the usage of recycled magnesium scrap and further improve casting structure and properties, a novel physical approach, the rheo-diecasting process (RDC ...
Fan, Z, Liu, G, Wang, Y
core  

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

open access: yesFEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini   +2 more
wiley   +1 more source

Mechanism of die soldering during aluminum die casting [PDF]

open access: yesChina Foundry, 2015
Soldering is a unique casting defect associated with die casting or metal mold casting of aluminum alloys. It occurs when molten aluminum sticks or solders the surface of the die steel and remains there after the ejection of the casting, causing a ...
Qing-you Han
doaj  

Numerical simulation of mold filling and casting solidification [PDF]

open access: yes, 2008
Cílem této diplomové práce je, na základě numerické simulace stávající technologie výroby hliníkového odlitku držáku kladky V9X, analyzovat příčiny vzniku vad typu zavaleniny a studené spoje.
Kolda, Vlastimil
core  

A design-for-casting integrated approach based on rapid simulation and modulus criterion [PDF]

open access: yes, 2009
This paper presents a new approach to the design of cast components and their associated tools. The current methodology is analysed through a case study and its main disadvantages underlined.
MARTIN, Lionel   +2 more
core   +5 more sources

Effect of Foot Orthoses on Midfoot Pain and the Volume of Bone Marrow Lesions in the Midfoot: A Randomized Mechanism of Action Study

open access: yesArthritis Care &Research, EarlyView.
Objective Foot orthoses are thought to improve pain by potentially modifying internal mechanical forces. To test this, we explored whether foot orthoses can modify patterns of bone marrow lesions (BMLs) in people with midfoot pain. Methods Forty‐two people were recruited with midfoot pain, and magnetic resonance imaging–confirmed midfoot BMLs ...
Jill Halstead   +4 more
wiley   +1 more source

A super-ductile alloy for the die-casting of aluminium automotive body structural components [PDF]

open access: yes, 2014
Super-ductile die-cast aluminium alloys are critical to future light-weighting of automotive body structures. This paper introduces a die-cast aluminium alloy that can satisfy the requirements of these applications.
Fan, Z, Ji, S, Watson, D
core   +1 more source

Does Long‐Term Lower Extremity Strength Training in Adults With Knee Osteoarthritis and Varus Alignment Reduce Knee Joint Loading During Gait?

open access: yesArthritis Care &Research, EarlyView.
Objective We examined whether 18 months of strength training in individuals with knee varus alignment and medial tibiofemoral osteoarthritis (OA) reduced knee joint loads during walking compared to an attention control group. Methods This study was a secondary analysis of a randomized clinical trial that compared the effects of strength training to a ...
Stephen P. Messier   +12 more
wiley   +1 more source

Effects of heat treatment on microstructure and mechanical properties of squeeze casting AlSi9Mg alloy flywheel housings formed with local supplementary pressure

open access: yesJournal of Materials Research and Technology
Targeted squeeze casting components of the thick-walled locations with local supplementary pressure (LSP) can effectively realize the local forced shrinkage, which is very significant for the elimination of shrinkage defects.
Jufu Jiang   +6 more
doaj   +1 more source

Temperature change and stress distribution analysis of die surface in Al-alloy die casting process and experimental study on die heat check [PDF]

open access: yesChina Foundry, 2008
The temperature change of the die surface in practical aluminum alloy die casting process was analyzed,and a 2D model was formulated on the basis of a deep concave round cavity without sliding core to analyze the stress distributions along the die ...
Hu Xinping, Zhao Guoqun, Wu Bingyao
doaj  

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