Results 131 to 140 of about 31,249,109 (227)

[E-scooter, e-bike and bicycle injuries in the same period-A prospective analysis of a level 1 trauma center]. [PDF]

Unfallchirurgie (Heidelb), 2023
Meyer HL, Kauther MD, Polan C, Abel B, Vogel C, Mester B, Burggraf M, Dudda M.   +7 more
europepmc   +1 more source

Iron‐Photocatalyzed Alkene Chloroaminoxylation: A Platform for Orthogonally Activatable Building Blocks

Angewandte Chemie, EarlyView.
An iron‐photocatalyzed unsymmetrical 1,2‐hetero(atom)difunctionalization of alkenes enables to install orthogonal C–Cl and C–O (alkoxyamine) handles which provides access to diverse nucleophiles via complementary reactivity (SN and photoredox) at two distinct sites. Detailed mechanistic studies elucidate interesting features of the iron catalytic cycle.
Amrita Chaudhuri, Meghana Aladahalli Shekar, Mohammad Zafar, Marianne Engeser, Gregor Schnakenburg, Ala Bunescu   +5 more
wiley   +2 more sources

Risk Factors for Road-Traffic Injuries Associated with E-Bike: Case-Control and Case-Crossover Study. [PDF]

Int J Environ Res Public Health, 2022
Zhong Z, Lin Z, Li L, Wang X.
europepmc   +1 more source

Digitalization and sustainability in e-bike industry

LAUREA MAGISTRALELa rapida crescita dell'industria delle e-bike offre opportunità significative per promuovere la sostenibilità urbana attraverso la digitalizzazione e le strategie di economia circolare (EC). Questo studio affronta tre questioni chiave:
SALEM, OMAR YASSER ALI ELBAHLOUL ALI
core  

Ring‐Retentive Allylation of Cyclopropanols Through Interception of Enolized Homoenolates by π‐Allylpalladium

Angewandte Chemie, EarlyView.
Cyclopropanols undergo palladium‐catalyzed, zinc‐mediated allylation with allyl acetates: the ring opens transiently to an enolized homoenolate, is intercepted by π‐allylpalladium, and recloses to furnish β‐allylated cyclopropanols. This formal “allylic cyclopropylation” broadens the reaction space for ring‐retentive functionalization of cyclopropanols.
Kento Tsukiji, Sena Miura, Naohiko Yoshikai   +2 more
wiley   +2 more sources

FEM and Circuit Simulation-Optimized WPT With Magnetic In-Band Communication for E-Bike Applications

IEEE Access
Coil optimization methodology and magnetic in-band communication-based control strategies tailored for electric bike (E-bike) inductive power transfer (IPT) systems are proposed in this paper.
Eun S. Lee
doaj   +1 more source

Impact of Helmet-Wearing Policy on E-Bike Safety Riding Behavior: A Bivariate Ordered Probit Analysis in Ningbo, China. [PDF]

Int J Environ Res Public Health, 2022
Zhou J, Zhou J, Zheng T, Dong S, Mao X, Ma C.   +5 more
europepmc   +1 more source

Chemical Switching Between B2N and B2C Homoaromaticity

Angewandte Chemie, EarlyView.
We report the synthesis of homoaromatic 1‐aza‐2,4‐diazadiboretane with a bicyclic four‐membered NB2C motif and demonstrate experimentally and theoretically that the homoaromatic delocalization can also be chemically shifted from the B2N to the B2C moiety by deprotonation of the ring carbon atom.
Tim Wiesmeier, Philipp Grewelinger, Carsten Präsang, Bernd Morgenstern, Diego M. Andrada, David Scheschkewitz   +5 more
wiley   +2 more sources

High‐Tg Polythioesters From Isomerization Ring‐Opening Polymerization of a Renewable Oxanorbornane‐Fused Thionolactone

Angewandte Chemie, EarlyView.
A biobased tricyclic thionolactone undergoes selective isomerization ring‐opening polymerization to yield a high‐molecular‐weight polythioester with an exceptionally high Tg of 171°C, exceeding that of the analogous polyester. The polythioester efficiently depolymerizes through backbiting, while its hydrolysis and methanolysis reveal the critical ...
Eva Harsevoort, Henk‐Jan Akkerman, Martin Lutz, Arnaud Thevenon, Pieter C. A. Bruijnincx   +4 more
wiley   +2 more sources

The combination of e-bike-sharing and demand-responsive transport systems in rural areas: A case study of Velenje. [PDF]

Res Transp Bus Manag, 2021
Bruzzone F, Scorrano M, Nocera S.
europepmc   +1 more source