Results 91 to 100 of about 24,810 (288)

Sand, mould, pattern and matrix

open access: yes, 2013
Il s’agit ici de reconsidérer des données concernant un procédé de fonte au sable filmé au Maroc il y a plus d’une dizaine d’années. Partant du double constat de la rareté des traces historiques laissées par cette technique et de sa relative rétivité à une analyse technologique classique en anthropologie filmique (en raison du constant changement d ...
openaire   +1 more source

Microrobotic Catheterization of the Ophthalmic Artery for Targeted Treatment of Retinoblastoma

open access: yesAdvanced Intelligent Systems, EarlyView.
A microrobotic platform is presented that allows teleoperated and autonomous navigation of flow‐driven magnetic microcatheters, MagFlow, into the ophthalmic artery for superselective intra‐arterial infusion of chemotherapy to treat retinoblastoma. Extensive benchtop validations with patient‐derived biomimetic phantoms under optical and fluoroscopic ...
Artur Banach   +5 more
wiley   +1 more source

Study Cum Research on Effect of Addition of Organic and Inorganic Acids in Naturally Bonding Sand Used in Metal Casting

open access: yesNUST Journal of Engineering Sciences, 2014
We have investigated the effect of addition of some of the inorganic and organic acids, in the naturally bonding sands taken from the bank of river Ravi, Lahore, Pakistan, on quality of casting and on mechanism of their reinforcement in the moulding sand.
Pervaiz Habibullah, Zafar Abbas Hashmi
doaj   +1 more source

Assessment Criteria of Bentonite Binding Properties [PDF]

open access: yes, 2012
The criteria, with which one should be guided at the assessment of the binding properties of bentonites used for moulding sands, areproposed in the paper.
S. Żymankowska-Kumon
core  

Enabling Metal‐Based Soft Robotics Through Investment Casting

open access: yesAdvanced Intelligent Systems, EarlyView.
Vacuum investment casting enables manufacturing of compliant soft robotic structures out of AA7075 high‐strength aluminum alloy. Additively manufactured patterns are converted into metal soft robotic structures addressing long lasting challenges like durability and nonlinearity of elastomer‐based soft robotics.
Felix Pancheri, Tim C. Lueth, Yilun Sun
wiley   +1 more source

Modified polysaccharides as alternative binders for foundry industry

open access: yesMetalurgija, 2016
Polysaccharides constitute a wide group of important polymers with many commercial applications, for example food packaging, fibres, coatings, adhesives etc. This review is devoted to the presentation of polysaccharide application in foundry industry. In
K. Kaczmarska   +5 more
doaj  

Formula of Moulding Sand, Bentonite and Portland Cement toImprove The Quality of Al-Si Cast Alloy

open access: yesJournal of Mechanical Engineering Science and Technology, 2017
A binder is any material used to strengthen the bonding of moulding sand grains. The primary function of the binder is to hold the moulding sand and other materialstogether to produce high-quality casts. In this study, there were four binder compositions
Andoko Andoko   +3 more
doaj   +1 more source

Faience: the ceramic technology of ancient Egypt [PDF]

open access: yes, 2012
Faiences are ancient Egyptian ceramic materials, considered as "high-tech" products. The paper discussed the method by which the faiences were produced and the application of SEM and Raman spectroscopy to their ...
Sparavigna, Amelia Carolina
core  

Liquid Jetting‐Based Miniature Robotic Navigation in Confined Fluidic Spaces

open access: yesAdvanced Intelligent Systems, EarlyView.
We introduce a new class of liquid‐jetting‐based miniature robots (JetBots) ranging in size from mm‐to‐cm, featuring a unified approach in design, fabrication, and actuation. They demonstrate fast locomotion (30.3 cm/s), rapid steering (648.8°/s), and diverse functions, such as puncturing soft materials and unlimited cargo sampling and delivery, paving
Debasish Roy, Tianlu Wang
wiley   +1 more source

Criteria for an advanced assessment of quality of moulding sands with organic binders and reclamation process products [PDF]

open access: yesChina Foundry, 2013
Reclamation of used moulding and core sands has been defined as a treatment of waste moulding refractory materials, enabling a recovery of at least one of the components having properties similar to those of the fresh component, and reuse for production ...
R. Dańko
doaj  

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