Results 91 to 100 of about 13,229 (248)

Emerging Trends in Organic Photoreactions Utilizing Disulfides

European Journal of Organic Chemistry, EarlyView.
Disulfides are versatile, nontoxic alternatives to metal photocatalysts. This review explores their role as photoactivated thiyl‐radical precursors and bifunctional catalysts (HAT/electron shuttling) in diverse transformations. Strategies for electronic tuning and development into recyclable heterogeneous materials are highlighted for sustainable ...
Sunil Kumar, Bolormaa Bayarkhuu, Hong Y. Cho, Jeehye Byun   +3 more
wiley   +1 more source

The High Voltage Feedthroughs for the ATLAS Liquid Argon Calorimeters [PDF]

, 2007
The purpose, design specifications, construction techniques, and testing methods are described for the high voltage feedthrough ports and filters of the ATLAS Liquid Argon calorimeters.
, A Talalaevskii, ASTM, ATLAS collaboration, ATLAS collaboration, B Botchev, Douglas Electrical Components (formerly Douglas Engineering Company), G Finocchiaro, Ground-R-Guide, HABIA Cable, J Farrell, J Hoffman, J Steffens, J.R. Perkins, Kynar, M Rijssenbeek, M Thioye, M Zdrazil, Mylar by DuPont, NASA, NOVACAP, NOVACAP, Product no. 0037, R L McCarthy, S Kan, T. Droege, Tefzel, TRA-CON   +27 more
core   +2 more sources

Chemical Syntheses of 3′ and 5′ Phosphorylated Oligonucleotides: An Overview

European Journal of Organic Chemistry, EarlyView.
This review provides an overview of the various chemical methods employed in the synthesis of oligonucleotides bearing a phosphate group at their 3′ or 5′ end. Notably, it presents modified phosphoramidites and supports developed for this purpose. Oligonucleotides (ON) with a phosphate monoester group at their 3′ or 5′ end have applications in many ...
Rémy Lartia
wiley   +1 more source

Tribology of natural Poly-Ether-Ether-Ketone (PEEK) under transmission oil lubrication

Polímeros
High performance polymeric materials such as poly-ether-ether-ketone (PEEK) are increasingly being used for challenging tribological applications in order to replace metal parts in vehicle engines and transmissions.
Thiago Fontoura de Andrade, Helio Wiebeck, Amilton Sinatora   +2 more
doaj   +1 more source

Review on Modification of Sulfonated Poly (-ether-ether-ketone) Membranes Used as Proton Exchange Membranes

Medžiagotyra, 2015
The proton exchange membrane fuel cell (PEMFC) is a type of modern power, but the traditional proton exchange membranes (PEM) of PEMFC are limited by high methanol permeability and water uptake.
Xiaomin GAO, Yonghua LIU, Jinlong LI
doaj   +1 more source

Effect of dispersion state of Cloisite15A® on the performance of SPEEK/Cloisite15A nanocomposite membrane for DMFC application [PDF]

, 2011
The introduction of 2,4,6-triaminopyrimidine (TAP) into sulfonated poly(ether ether ketone) (SPEEK)/Cloisite15A® nanocomposite membranes were investigated for the purpose of maintaining low methanol permeability and suppressing swelling in direct ...
Ismail, Ahmad Fauzi, Jaafar, Juhana, Matsuura, Takeshi   +2 more
core   +1 more source

Flavour Ester Synthesis by Immobilized Lipases: A Research Overview With Industrial Relevance

Flavour and Fragrance Journal, EarlyView.
Research landscape of flavour ester synthesis by immobilized lipases, highlighting enzymatic routes, major research themes and aspects related to industrial relevance, including enzyme reuse, solvent‐free systems, process intensification and scale‐up potential.
Nicole Marasca, Francisco Lucas Chaves Almeida, Rebeca Luana Carneiro, Marcus Bruno Soares Forte   +3 more
wiley   +1 more source

Synthesis and characterization of polysulfone/layered double hydroxides nanocomposite membranes for fuel cell application [PDF]

, 2014
In the present study, sulfonated polysulfone (SPSU)/layered double hydroxide (LDH) composite membranes for use in proton exchange membrane fuel cells (PEMFCs) were investigated.
Galván Sierra, Juan Carlos, Herrero, M., Levenfeld Laredo, Belén, Martos Gómez, Ana María, Várez Álvarez, Alejandro   +4 more
core   +2 more sources

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

FlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan, Hao Li, Mengna Yu, Huiyin Wang, Jiangqiang He, Menghan Wu, Quanyou Feng, Linghai Xie   +7 more
wiley   +1 more source

Direct spun aligned carbon nanotube web-reinforced proton exchange membranes for fuel cells [PDF]

, 2014
A composite membrane prepared by electrospinning SPEEK and direct spinning of CNTs is more robust than SPEEK alone and outperforms SPEEK and Nafion 212 membranes.
Caruso, Rachel A., Choi, Jonghyun, Hawkins, Stephen C., Huynh, Chi P., Jeon, Yukwon, Kyratzis, Ilias L., Lee, Chanmin, Park, Jeongho, Shul, Yong-Gun, Truong, Yen B.   +9 more
core   +1 more source