Results 71 to 80 of about 1,023,809 (331)

Carbon Shell‐Encapsulated PtFe Catalysts in High Temperature Polymer Electrolyte Membrane Fuel Cells: Balancing Molecular Sieving and Diffusion for Enhanced Reactant Access

open access: yesAdvanced Functional Materials, EarlyView.
Scanning electrochemical microscopy reveals reactant diffusion through porous carbon shells to PtFe cores, while the carbon‐encapsulated PtFe enables high‐performance HT‐PEMFC operation by sieving phosphate ions that induce catalyst poisoning. ABSTRACT High‐temperature polymer electrolyte membrane fuel cells (HT‐PEMFCs) operating at 160°C on phosphoric
Myeong‐Geun Kim   +9 more
wiley   +1 more source

Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review

open access: yesAdvanced Healthcare Materials, EarlyView.
Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro   +8 more
wiley   +1 more source

Space management in category management: A comparative analysis of retailers in the subcategory of pickled and preserved vegetables [PDF]

open access: yesStrategic Management, 2017
With raising number of products offered by manufacturers, and the same or smaller sales space, retailers are in constant quest for optimal model of allocating limited shelf space to list of products in assortment that will insure highest possible profit ...
Dujak Davor   +2 more
doaj  

Enhanced Endoscopic Internal Drainage of Gastric Abscess Through Additively Manufactured Stents

open access: yesAdvanced Healthcare Materials, EarlyView.
Postoperative gastric leaks are often treated with off‐label biliary double‐pigtail stents, yet conventional extruded designs are not optimized for leak anatomy, can migrate, and may limit abscess evacuation. PETALS is introduced to optimize transmural drainage geometry and enable patient‐specific 3D‐printable stents.
Parima Phowarasoontorn   +14 more
wiley   +1 more source

Lewis revisited : tropical polities competing on the world market 1830-1938 [PDF]

open access: yes, 2016
Since the seminal work by W.A. Lewis, exports of primary products have been deemed the main or sole source of growth in tropical countries before the Great Depression. This conventional wisdom, however, relies on very limited evidence.
Absell   +51 more
core   +2 more sources

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

The Export Performance of the Euro Area countries in the period 1996-2007 [PDF]

open access: yes
This paper studies the export performance of the Euro Area and the majority of the Euro Area countries through a Constant Market Share Analysis. We keep a special focus on the three largest countries: Germany, France and Italy.
Cafiso, Gianluca
core   +1 more source

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

open access: yesAdvanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil   +14 more
wiley   +1 more source

Situation factors in purchasing organic food [PDF]

open access: yesActa Agriculturae Serbica
Despite the lack of information and the insufficient level of consumer knowledge, the organic food market has recorded constant growth in the last twenty years and has an increasing share in the total food and beverage market.
Čolović Milica, Mitić Vladimir
doaj   +1 more source

A disaggregated analysis of the export performance of some industrial and emerging countries [PDF]

open access: yes
The paper describes the evolution of export shares and quantifies the contribution of the geographical and sectoral specialization for some industrial and emerging market economies between 1985 and 2003.
Finicelli, Andrea   +2 more
core   +1 more source

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