Results 81 to 90 of about 35,455 (302)

The Feasibility of Reclaiming Shell Material from Investment Casting [PDF]

open access: yes, 1992
This report examines the feasibility of investment shell component reclamation. Shell material components and their compositions are investigated with an industry survey, a study of the available literature, and analysis of specimen shell materials ...
Peters, Timothy M., Twarog, Daniel L.
core  

Copper–Collagen Interactions Regulate the Mechanical and Invasive Properties of Tumor Spheroids

open access: yesAdvanced Healthcare Materials, EarlyView.
Ionic copper is investigated as a modulator of tumor spheroid growth and invasiveness in a 3D microfluidic glioblastoma model. Copper exposure alters metabolic activity, cytoskeletal organization, protrusion dynamics, and EMT‐related phenotypes in a dose‐ and timing‐dependent manner, revealing how copper bioavailability shapes tumor aggressiveness ...
Paula Guerrero‐López   +5 more
wiley   +1 more source

Copyright, Copyleft, and Shakespeare After Shakespeare [PDF]

open access: yes, 2017
Much critical ink has been spilled in defining and establishing the terms of discussion: appropriation, adaptation, off-shoot, recontextualization, riff, reworking, and so on have been used interchangeably or under erasure.
Sujata Iyengar
core   +1 more source

Piezoelectric Surface Charge and Dynamic Stimulation Synergize to Promote Cardiac Myoblast Alignment and Maturation

open access: yesAdvanced Healthcare Materials, EarlyView.
Surface polarization of PVDF films combined with mechanical stimulation generates piezoelectric electrical cues that modulate cardiomyoblast behaviour. Non‐poled and poled PVDF substrates provide distinct electroactive microenvironments influencing cell adhesion, proliferation, and differentiation.
Rafaela M Meira   +3 more
wiley   +1 more source

The prehistoric individual, connoisseurship and archaeological science: The Muisca goldwork of Colombia [PDF]

open access: yes, 2015
Unlike art historians, archaeologists rarely make systematic attempts at attributing artefacts to individual artisans - they stop at the broader category of 'provenance regions' or 'technical styles'.
Martinón-Torres, M, Uribe-Villegas, MA
core   +1 more source

Tuning the Testicular Microenvironment for Enhancing Human Sertoli Cells Maturation and Functionality In Vitro

open access: yesAdvanced Healthcare Materials, EarlyView.
An in vitro testicular model is developed by generating connective tissue equivalents from human dermal fibroblast‐derived microtissues and coupling them with human Sertoli cells or human Sertoli cell spheroids. This engineered microenvironment supports Sertoli cell maturation and functionality, providing a promising platform for studying human ...
Annachiara Scalzone   +4 more
wiley   +1 more source

New research on the Cleveland Apollo

open access: yesDissertationes Archaeologicae: Ex Instituto Archaeologico Universitatis de Rolando Eötvös Nominatae
This paper presents new technical details on the original manufacture and modern reconstruction of the Cleveland Apollo, a nearly life-size ancient bronze sculpture of the youthful god acquired by the Cleveland Museum of Art in 2004.
Seth Pevnick, Colleen Snyder
doaj   +1 more source

Sandblasting nozzle [PDF]

open access: yes, 1981
A nozzle for use with abrasive and/or corrosive materials is formed of sintered ceramic compositions having high temperature oxidation resistance, high hardness and high abrasion and corrosion resistance.
Pawlik, E. V.   +2 more
core   +1 more source

Physicochemical Reinforcement Unlocks Sterilization‐Stable Anisotropic Hydrogels for Cell‐Compatible Mock Arteries

open access: yesAdvanced Healthcare Materials, EarlyView.
ABSTRACT In vitro arterial models offer ethical and robust alternatives for vascular research but require cytocompatible materials that replicate physiological mechanics. Poly(vinyl alcohol) (PVA) hydrogels produced by directional freezing and salting‐out (PVA DFSO) are anisotropic yet lack stability for cell culture. Herein, methacrylated PVA (PVA‐MA)
Javiera Sanhueza Ortega   +4 more
wiley   +1 more source

Prospect of Making Ceramic Shell Mold by Ceramic Laser Fusion [PDF]

open access: yes, 2004
Manufacturing prototypical castings by conventional investment casting not only takes several weeks, but also is prohibitively expensive. Z Corporation in USA, EOS GmbH and IPT in Germany employ the techniques of 3DP and SLS respectively to make ...
Lin, Z. Y.   +3 more
core   +1 more source

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