Results 231 to 240 of about 91,818 (318)

A load balancing algorithm using radio signal strength and sensitivity for the multipath source routing protocol

, 2004
Hadeel T. El Kassabi
openalex   +2 more sources

Adaptive Cell Relay Routing Protocol for Mobile Ad Hoc Networks [PDF]

, 2006
Xiang Du, Dapeng Wu
openalex   +1 more source

Plasmonic and Photonic Modes in Colloidal CuS Nanocrystals

Advanced Optical Materials, EarlyView.
Copper sulfide in the covellite phase (CuS) can exhibit exceptional optoelectronic properties with plasmonic and photonic absorption in its monolithic nanomaterial form. In this work, the phenomenon of near‐infrared (NIR) to visible electromagnetic field localization in ultrathin crystalline quasi‐2D CuS nanocrystals is demonstrated by mapping ...
Kenan Elibol, Fatemeh Davoodi, Urvi Parekh, Masoud Taleb, Stefan Scheel, Marko Burghard, Peter A. van Aken, Christian Klinke, Nahid Talebi, Rostyslav Lesyuk   +9 more
wiley   +1 more source

Routing protocols in satellite networks

, 2018
Routing protocols provide basic connectivity for the Internet. Routing is the action of nodes finding paths to deliver data packets. The mobile ad hoc network (MANET) is a self-configuring network, based on mobile nodes and wireless transmission.
openaire   +1 more source

Femtosecond Direct Laser Writing of Conductive and Electrically Switchable PEDOT:PSS Optical Nanostructures

Advanced Optical Materials, EarlyView.
Commercial femtosecond direct laser writing (Nanoscribe GT) is utilized to fabricate electrically switchable PEDOT:PSS nanostructures on ITO‐coated glass substrates, as well as underneath and on top of 3D‐printed structures and demonstrates beam‐switching at 1550 nm. Abstract Microscale three‐dimensional (3D)‐printing, with its remarkable precision and
Dominik Ludescher, Pavel Ruchka, Leander Siegle, Yanzhe Huang, Philipp Flad, Monika Ubl, Sabine Ludwigs, Mario Hentschel, Harald Giessen   +8 more
wiley   +1 more source

Hydrofluoroether Synthesis through One‐Pot Anodic Iodoalkoxylation of Alkenes

Advanced Synthesis &Catalysis, EarlyView.
Abstract The incorporation of carbon‐fluorine bonds can profoundly influence the chemical and physical properties of drugs, agrochemicals, and materials. Different methods allow the installation of CF3, CF2H units and C−F bonds including trifluoro‐ and difluoromethoxylations, reflecting the limited diversity of reactions available to synthetic chemists.
Martin Becerra‐Ruiz, Bethan Winterson, Edwin G. Pérez, Thomas Wirth   +3 more
wiley   +1 more source

Enzymatic Asymmetric Synthesis of All Stereoisomers of Aliphatic, Vicinal Diols in Conventional and Non‐Conventional Media

Advanced Synthesis &Catalysis, EarlyView.
Abstract Chiral, vicinal diols are of high interest for academic research and industrial applications. For synthesizing chiral diols, enzymes are important catalysts due to their high selectivity and ability to work under tolerable temperature and no pressure.
Maria Nicolas, Jan‐Dirk Küsters‐Spöring, Chiara Aufderheide, Helen Traving, Carina Ronja Kipp, Victoria S. Pfennig, Carsten Bolm, Petra Siegert, Dörte Rother   +8 more
wiley   +1 more source

Brønsted Acid‐Catalyzed Enantioselective and Para‐Selective Addition of Phenols to 1‐Alkynylnaphth‐2‐Ols

Advanced Synthesis &Catalysis, EarlyView.
Abstract A chiral Brønsted acid‐catalyzed synthesis of axially chiral alkenes was developed via an enantioselective and para‐selective Friedel–Crafts reaction between phenols and 1‐alkynylnaphth‐2‐ols. This methodology features an efficient hydroarylation with high functional group tolerance, complete para‐selectivity, excellent yields (up to 99%), and
Anjali Dahiya, Kalyan Dhara, Jordan Garo, Julien Gicquiaud, Alexandre Karnat, Murielle Berlande, Philippe Hermange, Jean‐Marc Sotiropoulos, Patrick Y. Toullec   +8 more
wiley   +1 more source

Double‐Sided Control of Product Type Preference in the Visible‐Light Initiated Reaction of 1,3‐Dicarbonyl Compounds with Alkenes

Advanced Synthesis &Catalysis, EarlyView.
Abstract The demonstrated light‐initiated addition of radicals formed on an active methylene group to styrene derivatives exhibits a product selectivity influenced by the presence of a protic solvent. Under protic conditions, the predominant products are branched compounds with the alkene moiety attached to the methylene group.
Małgorzata Pałyga, Jan Rzepiela, Sebastian Baś   +2 more
wiley   +1 more source

Tunable Preparation of β‐Substituted Alkenoate Esters via Radical Alkenylation of C(sp3)–H Bonds with Allenoates

Advanced Synthesis &Catalysis, EarlyView.
Abstract A photocatalytic strategy for the radical alkenylation of aliphatic C(sp3)–H bonds with 2,3‐allenoate esters is described. The protocol takes place upon irradiation of the reaction mixture in the presence of the decatungstate anion, which triggers C−H cleavage in the chosen aliphatic substrates.
Alexandra Jorea, Roberto Chessa, Davide Ravelli   +2 more
wiley   +1 more source