Results 101 to 110 of about 7,350 (241)

Solvent‐Driven Pore Engineering in Coffee‐Derived Activated Hydrochar: Implications for Post‐Combustion CO2 Capture

open access: yesCarbon Energy, EarlyView.
Solvent washing of coffee‐ground hydrochars produces activated carbons with tunable pore sizes while maintaining surface area. Removing non‐polar contaminants enhances microporosity, increasing CO2 uptake by 40%. Moderate pore sizes (9–12 Å) yield optimal CO2:N2 selectivity, whereas smaller pores reduce selectivity due to stronger interactions between ...
Muhammad Irfan Maulana Kusdhany   +4 more
wiley   +1 more source

Congenital defects of the middle ear-uncommon cause of pediatric hearing loss [PDF]

open access: yes, 2014
INTRODUCTION: In children, hypoacusis, or conductive hearing loss, is usually acquired; otitis media with effusion is the most common etiology. However, in some cases this condition is congenital, ranging from deformities of the external and middle ear
Abrunhosa, J.   +4 more
core  

Noncopper Photocatalysts for Visible‐Light‐Driven Conversion of CO2 into C2+ Products

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Noncopper photocatalysts for visible‐light‐driven CO2 conversion to C2+ products with high production rates and selectivity have been reviewed and commented on, especially for the strategies to enhance photocatalytic efficiency. Photocatalytic CO2 fixation into value‐added chemicals can not only mitigate the greenhouse effect but also alleviate the ...
Fangshuai Chen   +6 more
wiley   +1 more source

Micro-endoscopic ear anatomy of guinea pig applied to experimental surgery [PDF]

open access: yes, 2014
PURPOSE:To describe topographic and endoscopic anatomy of guinea pig ear for development of surgical approaches in experimental studies.METHODS:Experimental study. Eight adult guinea pigs (Cavia porcellus) were used in this study.
Andrade, José Santos Cruz de   +6 more
core   +3 more sources

Phosphate and fluoride removal options for Hanford high‐level waste sludge processing

open access: yesEnvironmental Progress &Sustainable Energy, EarlyView.
Abstract High‐phosphate and high‐fluoride sludges represent some of the most challenging waste streams within the Hanford High‐Level Waste (HLW) inventory due to solubility constraints, impacts on glass loading, and corrosion risks during vitrification.
A. M. Westesen   +4 more
wiley   +1 more source

STS payload ground handling mechanism at John F. Kennedy Space Center [PDF]

open access: yes, 1985
The payload ground handling mechanism (PGHM), which lifts payloads out of the payload canister that brings them to the launch pad, is described. The PGHM then loads the payloads into the orbiter through the open payload bay doors.
Cassisi, V., Tatem, B. C., Jr.
core   +1 more source

Irreducible incoherence and intelligent design : a look into the conceptual toolbox of a pseudoscience [PDF]

open access: yes, 2010
The concept of Irreducible Complexity (IC) has played a pivotal role in the resurgence of the creationist movement over the past two decades. Evolutionary biologists and philosophers have unambiguously rejected the purported demonstration of “intelligent
Blancke, Stefaan   +2 more
core   +2 more sources

Malleostapedotomy in Patients With Stapes Fixation: A Systematic Review

open access: yesThe Laryngoscope, EarlyView.
This systematic review analyses the current evidence on malleostapedotomy as a primary or revision procedure in patients with stapes fixation. Twenty‐five studies comprising 632 operated ears were included. Malleostapedotomy proved to be a safe and effective alternative to incus‐anchoring stapedoplasty, with favorable hearing outcomes and a low ...
Matteo Alicandri‐Ciufelli   +4 more
wiley   +1 more source

The three surgical techniques for otosclerosis: a review of literature [PDF]

open access: yes, 1961
Thesis (Ed.M.)--Boston ...
Moran, Marie Spiers
core  

Additive Manufacturing of Cobalt Iron Oxide‐Based Photopolymer Resin Magnetoactive Polymer Composites Through Stereolithography

open access: yesMacromolecular Materials and Engineering, EarlyView.
In this study, novel resin/cobalt iron oxide magnetic actuation polymer composites (MAPCs) are synthesized and optimized for stereolithography (SLA)‐based 3D printing. Printing parameters are tuned for dimensional accuracy and print quality. Comprehensive physicochemical, mechanical, and magnetic characterization identifies the optimal formulation ...
Ambreen Afridi   +2 more
wiley   +1 more source

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