Results 51 to 60 of about 278,148 (293)

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

open access: yesAdvanced 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   +10 more
wiley   +1 more source

Catalyzing Connections: The State of Miami's Startup Ecosystem [PDF]

open access: yes, 2016
Few U.S. cities have transformed the way that Miami has in recent years. In addition to its evolution as a year-round arts and culture location, there has been an increased focus on entrepreneurship as essential to the city's future growth. But what does

core  

The Most Entrepreneurial Metropolitan Area? [PDF]

open access: yes, 2013
This report is based on federal government data -- available to the public for the first time -- on business startups at the metropolitan area level. By decomposing into four population size classes, this report can provide more effective peer-to-peer ...
Jared Konczal
core   +1 more source

Recent Progress in the Phase‐Controlled Synthesis of Ruthenium Nanocrystals for Catalytic Applications

open access: yesAdvanced Materials, EarlyView.
Template effect and kinetic control enable crystal‐phase engineering of Ru nanocrystals, granting access to either metastable fcc‐Ru or stable hcp‐Ru with distinct surface structures, thermal stabilities, and catalytic behaviors. Moreover, the hcp‐Ru can further serve as an epitaxial template to direct Pd and Rh nanocrystals into the metastable hcp ...
Jianlong He   +3 more
wiley   +1 more source

Production of n-propyl acetate by reactive distillation : experimental and theoretical study [PDF]

open access: yes, 2007
First steps of the development of a catalytic reactive distillation process for the production of n-propyl acetate based on experiments and simulations are proposed.
Bart   +22 more
core   +2 more sources

Gold Nanorods in Cardiac Millitissues: Assessing Mechanical and Contractile Dynamics in a Living Engineering Myocardium Model

open access: yesAdvanced Materials Technologies, EarlyView.
This study presents a novel platform for assessing the active mechanical behavior of living cardiac microbundles through localized nanoindentation, integrated with temperature regulation and dual‐camera imaging systems. The developed system enables quantitative evaluation of dynamic micromechanics in engineered cardiac tissues in vitro, offering ...
Lihua Lou   +4 more
wiley   +1 more source

Date Fruit and Seed in Nutricosmetics

open access: yesCosmetics, 2021
Many recent studies in the field of cosmetics have focused on organically sourced substances. Products made from organic materials are safe, high quality, cruelty-free, and more effective than those made from synthetic materials.
Khlood Lafi Alharbi   +2 more
doaj   +1 more source

Tech Starts: High-Technology Business Formation and Job Creation in the United States [PDF]

open access: yes, 2013
New and young businesses -- as opposed to small businesses generally -- play an outsized role in net job creation in the United States. But not all new businesses are the same -- the substantial majority of nascent entrepreneurs do not intend to grow ...
Ian Hathaway
core   +1 more source

Scalable Layer‐by‐Layer Electrospray‐Assisted Interfacial Polymerization: Enabling Large‐Area Polyamide Membrane Fabrication

open access: yesAdvanced Materials Technologies, EarlyView.
We report a multi‐jet, layer‐by‐layer electrospray‐assisted interfacial polymerization (LBL‐EAIP) approach for the scalable fabrication of polyamide reverse osmosis (RO) membranes. The method enables precise control of polymerization, uniform polyamide coverage, and tunable polyamide film thickness, while delivering consistently high filtration ...
Yue Feng   +5 more
wiley   +1 more source

Chemically Doped Conductive Polymers for Wearable Health Monitoring

open access: yesAdvanced Materials Technologies, EarlyView.
Among conductive polymers, poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), polyaniline (PANI), and polypyrrole (PPy) are the most studied and applied. Chemical doping significantly boosts intrinsic conductivity and mechanical robustness.
Mengdi Zuo   +5 more
wiley   +1 more source

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