Results 101 to 110 of about 305,392 (312)

Estudo da degradação térmomecânica e fotooxidativa de poli(acrilonitrila-butadieno-estireno) para fins de reciclagem primária [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Fderal de Santa Catarina, Centro Tecnologico, Programa de Pós-Graduação em Ciências e Engenharia de Materiais, Florianópolis, 2009O interesse da reciclagem primária do copolímero de acrilonitrila, butadieno estireno (
Klein, Fernando Roberto
core  

New thermal study of polymerization and degradation kinetics of methylene diphenyl diisocyanate [PDF]

open access: yes, 2018
This work investigates the thermal polymerization process of a methylene diphenyl diisocyanate (MDI) monomer as well as its thermal degradation following the ICTAC recommendations.
Rafael Turra Alarcon   +17 more
core   +1 more source

Light‐Assisted 3D Printing Techniques and Photocrosslinking Strategies: Recent Advances in Musculoskeletal Tissue Engineering

open access: yesAdvanced Engineering Materials, EarlyView.
In this review, the current state of light‐assisted 3D printing as it pertains to engineering musculoskeletal tissues including bone, cartilage, skeletal muscle, tendon, and ligaments is summarized. Common printing techniques, photoreactive materials, and study design choices are compiled and reviewed.
Meagan Morgan, Bin Zhang, Roger Narayan
wiley   +1 more source

Moisture Accumulation and Its Impact on the Thermal Performance of Pipe Insulation for Chilled Water Pipes in High Performance Buildings [PDF]

open access: yes, 2012
Mechanical pipe insulation systems are commonly applied to cold piping surfaces in most industrial and commercial buildings in order to limit the heat losses and prevent water vapor condensation on the pipe exterior surfaces.
Cremaschi, Lorenzo   +2 more
core   +1 more source

Thermo-Mechanical and Data-Driven Assessment of Sustainable Concrete Incorporating Waste Tire Aggregates and Recycled Steel Fibers

open access: yesBuildings
This study examines the impact of recovered steel fibers (WTSFs) and waste tire aggregates of varying sizes—fine (FWTR), small coarse (SCWTR), and large coarse (LCWTR)—on the compressive strength of concrete subjected to elevated temperatures.
Yasin Onuralp Özkılıç   +7 more
doaj   +1 more source

PYROLIGNEOUS LIQUOR PRODUCED FROM ACACIA MEARNSII DE WILD WOOD UNDER CONTROLLED CONDITIONS AS A RENEWABLE SOURCE OF CHEMICALS

open access: yesQuímica Nova, 2015
Acacia mearnsii de Wild (black wattle) is one of the most important trees planted in Southern Brazil for tannin extraction and charcoal production. The pyrolysis of the black wattle wood used for obtaining charcoal is performed in brick ovens, with the ...
Carolina M. Furtado   +8 more
doaj   +1 more source

Variable Stiffness Flexure Structures Enabled by Phase‐Change Gallium and Adhesive Interfacial Locking for Soft Robotic Applications

open access: yesAdvanced Engineering Materials, EarlyView.
A flexure‐based variable stiffness structure is developed by integrating phase‐change modulation and adhesive interfacial locking of gallium. The design enables a wide stiffness variability, transitioning from soft, flexible behavior to rigid, load‐supporting performance.
Sungjin Kim   +2 more
wiley   +1 more source

THERMAL AND PHOTOCHEMICAL DEGRADATION OF DODECYL-SULFATE DOPED POLYPYRROLE [PDF]

open access: yes, 2015
The authors report on the changes of the electrical, morphological, chemical and electrochemical properties of polypyrrole dodecylsulfate films aged at 100-degrees-C or exposed to a solar simulator light source.
GAZOTTI, WA, DEPAOLI, MA, JULIANO, VF
core   +1 more source

Thermal Stability of Aqueous Polyurethanes Depending on the Applied Catalysts

open access: yesSensors, 2006
The thermal stability of aqueous polyurethanes has been measured applying thethermogravimetric analysis. The aqueous polyurethanes (aqPUR) with catalysts of differentselectivity have been studied by use of the dynamic method.
Miroljub Barac   +6 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

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