Results 61 to 70 of about 166,225 (314)

Pengaruh Penambahan Cacahan Limbah Plastik Jenis High Density Polyethylene (Hdpe) Pada [PDF]

, 2012
Waste is a very complex problem in urban area. Plastic waste is increasing every year. Kupang with population of 291,794 people generate waste reaches 926 m3/day. Organic waste to 700 m3 and inorganic waste about 226 m3.
Da Costa, Bernad D, Sina, D. A. (Dantje), Udiana, I. M. (I)   +2 more
core  

MAGTWIST: A Magnetically‐Driven Rotary Actuator Using a Traveling‐Wave With Integrated Stiffness Tunability

Advanced Functional Materials, EarlyView.
MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler, Jean‐Paul P.M. de Vries, Sarthak Misra, Venkatasubramanian Kalpathy Venkiteswaran   +3 more
wiley   +1 more source

Flexural strength of hydrogen plasma-treated polypropylene fiber-reinforced polymethyl methacrylate denture base material

The Journal of Indian Prosthodontic Society, 2018
Objectives: The present study aimed to evaluate flexural strength of hydrogen plasma-treated polypropylene fibers-reinforced polymethyl methacrylate (PMMA) polymer composite.
Merin Mathew, Kamalakanth Shenoy, K S Ravishankar   +2 more
doaj   +1 more source

Comparison of Porcelain Surface and Flexural Strength Obtained by Microwave and Conventional Oven Glazing [PDF]

, 2009
Statement of problem. Although the superior qualities of microwave technology are common knowledge in the industry, effects of microwave glazing of dental ceramics have not been investigated. Purpose.
Brewer, Jane D., Davis, Elaine L., Kim, Hyeongil, Monaco, Jr., Edward A., Prasad, Soni   +4 more
core   +1 more source

Novel Functional Materials via 3D Printing by Vat Photopolymerization

Advanced Functional Materials, EarlyView.
This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov, Patrick Fesser, Boris A. Bulgakov, Ulrich S. Schubert   +3 more
wiley   +1 more source

Effect of thermocycling on flexural strength of dental CAD/CAM ceramics of variable thicknesses and structures: an in vitro study [version 2; peer review: 1 approved, 2 approved with reservations, 1 not approved]

F1000Research
Background This study examined the effect of thermocycling on the flexural strength properties of four CAD/CAM ceramic materials at different thicknesses.
Shahad T. Alameer, Laila Al Dehailan, Sultan Akhtar, Turki Alshehri, Nourhan M. Aly, Yousif A. Al-Dulaijan, Passent Ellakany   +6 more
doaj   +1 more source

From Clinic to Computation: Multiscale Bioengineering Strategies for Durable Biological Aortic Valve Replacements

Advanced Functional Materials, EarlyView.
Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco, Pierfrancesco Gaziano, Serena Anglese, Simone Morganti, Carlo de Vincentiis, Ferdinando Auricchio, Michele Marino, Michele Conti   +7 more
wiley   +1 more source

Investigating the mechanical properties of wood flour/ polypropylene/ nanoclay composite [PDF]

تحقیقات علوم چوب و کاغذ ایران, 2013
The effect of nanoclay and coupling agent contents on the mechanical properties of wood flour/ polypropylene/ nanoclay composites was investigated. Wood flour content was constant at 40%, maleic anhydride at two levels of 2 and 4% and nanoclay (Cloisite ...
Habib alah Khademi eslam, Zahra Yoosefnia, Esmaeil Ghasemi, Mohammad Talaeipoor   +3 more
doaj   +1 more source

Ammonium Salts as Curing Agents to Obtain Ionic Epoxy Resins With a Thermoplastic‐to‐Thermoset Transition

Advanced Materials, EarlyView.
Ionic epoxy networks are prepared using ammonium salts as hardeners, leading to a two‐stage curing process with a thermoplastic‐like intermediate. This uncommon behavior enables extrusion and fabrication of thermoplastic prepregs that can be cured into thermoset composites.
Izabela Kurowska, Leire Unanue, Itxaso Calafel, Dorleta Otaegui, Jorge L. Olmedo‐Martínez, Lourdes Irusta, Daniel Vinagre, Nora Aranburu, Nerea Casado, Ibon Odriozola, David Mecerreyes   +10 more
wiley   +1 more source

Influence of fabrication methods on the flexural strength of two glass-ceramics with different chromas

Brazilian Dental Science
Objective: To investigate whether different methods of preparing the specimens for three-point flexural strength testing influence the flexural strength values of lithium disilicate (LD) and zirconia-reinforced lithium silicate (ZLS) of two chromas (A1 ...
Victor Mosquim, Brunna Mota Ferrairo, Flavia Carvalho Nery de Souza, Raphael Freitas de Souza, Lucas Azevedo Silva, Ana Flávia Sanches Borges   +5 more
doaj   +1 more source