Results 41 to 50 of about 40,906 (270)

Management of Sacral Tumors Requiring Spino-Pelvic Reconstruction with Different Histopathologic Diagnosis: Evaluation with Four Cases [PDF]

open access: yesAsian Spine Journal, 2015
In this retrospective study, surgical results of four patients with sacral tumors having disparate pathologic diagnoses, who were treated with partial or total sacrectomy and lumbopelvic stabilization were abstracted.
Murat Arıkan   +5 more
doaj   +1 more source

Ionic Liquid-Nanostructured Poly(Methyl Methacrylate)

open access: yesNanomaterials, 2019
Here, ionic liquids (ILs) based on imidazolium and ammonium cations were used as modifying agents for poly(methyl methacrylate) (PMMA) by extrusion. The effects of the chemical nature of the cation and/or counter anion on the resulting properties of IL ...
Clarice Fedosse Zornio   +3 more
doaj   +1 more source

Thermal and mechanical studies of nanochitosan incorporated polymethyl methacrylate-based composite electrolytes

open access: yesJournal of Engineering and Applied Science, 2022
The composite solid polymer electrolytes based on Polymethyl methacrylate–Lithium triflate with nanochitosan as inert nanofiller were prepared by membrane hot-press method. Nanochitosan was synthesized from shrimp shell. The obtained polymer membrane was
P. M. Shyly   +2 more
doaj   +1 more source

Development of transparent polymer armour based on high-strength polyethylene films

open access: yesJournal of Materials Research and Technology
Impact-resistant and anti-ballistic composite materials for personal protection are typically either non-transparent, such as those made from ultra-high molecular weight polyethylene and aramid fibres or transparent materials like laminated glass, which ...
Muhammad Rehan Asghar Bhatti   +4 more
doaj   +1 more source

Spectroscopic characterizations of the mixed Langmuir-Blodgett (LB) films of 2,2'-biquinoline molecules: evidence of dimer formation

open access: yes, 2008
This communication reports the -A isotherms and spectroscopic characterizations of mixed Langmuir and Langmuir-Blodgett (LB) films of nonamphiphilic 2, -biquinoline (BQ) molecules, mixed with polymethyl methacrylate (PMMA) and stearic acid (SA). The pi-A
Acharya   +17 more
core   +1 more source

Evaluation of flexural and impact strength of heat-cured poly methyl methacrylate, acrylic, and vertex resins after immersion in different disinfection solutions

open access: yesJournal of the Pakistan Medical Association
Objective: To evaluate the flexural and impact strength of heat-cured polymethyl methacrylate acrylic and vertex resins after disinfection with alkaline peroxide and sodium hypochlorite solution.
Zarah Siddiqui   +6 more
doaj   +1 more source

Stretching the Printability Metric in Direct‐Ink Writing with Highly Extensible Yield‐Stress Fluids

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces “drawability” as a new metric for assessing printability in direct‐ink writing, focusing on gap‐spanning performance and speed robustness. By designing yield‐stress fluids with high extensibility, we demonstrate that extensional strain‐to‐break significantly enhances printability.
Chaimongkol Saengow   +9 more
wiley   +1 more source

Fabrication and Characterization of Core Offset Waveguide Optical Sensor for Refractive Index Measurement

open access: yesIndonesian Journal of Applied Physics, 2022
Refractive index is important parameter in various fields, such as environmental, chemical, industrial, and medical. Measurement of refractive index can be done using optical sensor based buried waveguide core offset.
Dhea Paradita   +2 more
doaj   +1 more source

Disordered Carbon Shells Enable Shape Dependent Fluorescence Enhancement in Nanodiamond Quantum Sensors Revealed by Correlative TEM–Fluorescence Microscopy

open access: yesAdvanced Functional Materials, EarlyView.
Molten KNO2 treatment induces a lowrefractive index disordered carbon shell on fluorescent nanodiamonds, enhancing fluorescence emission while preserving spin coherence. Machine learningassisted correlative TEMPL enables direct single‐particle resolution of this enhancement relative to air‐oxidized nanodiamonds of similar morphology, establishing a ...
Parkarsh Kumar   +10 more
wiley   +1 more source

Optoelectrical Devices for Neural Interfacing: Engineering Integration, Stability, and Multimodal Sensing

open access: yesAdvanced Healthcare Materials, EarlyView.
Implantable optoelectrical devices are an effective resource for the modulation and monitoring of neural activity with high spatiotemporal resolution. This review discusses current challenges faced by these devices and outlines future perspectives for the development of next‐generation neural interfaces targeting chronic, multisite, and multimodal ...
Stella Aslanoglou   +4 more
wiley   +1 more source

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