Results 181 to 190 of about 92,101 (311)

Implementing bicycle improvements at the local level.

open access: yes, 1998
"September 1998."Performed by the Bicycle Federation of America.Author: John Williams et al.Cover title.Includes bibliographical references.Final report.Sponsored by Federal Highway Administration.Mode of access ...
Bicycle Federation of America.   +2 more
core  

Mechatronic Bicycle Storage : Rotary bicycle storage developed for bicycle rooms

open access: yes
This bachelor thesis is aimed at creating an improved version of traditional two-story bicycle racks, common in bicycle rooms. The purpose is to remove the need for heavy lifting when loading and unloading bicycles, while simultaneously enhancing safety and utilization. The solution presented in this project is to create an automated rotary system that
Andrén Jakobsson, Martin   +1 more
openaire   +1 more source

The Investigation of the Deactivation of the Metal‐Modified ZSM‐5 Zeolites for the Catalytic Dehydration of Glycerol

open access: yesCarbon and Hydrogen, EarlyView.
During the glycerol dehydration over ZSM‐5 zeolite, the modification by metal promoters results in the suppression of the bicyclic and tricyclic aromatics over the modified ZSM‐5 zeolite catalysts. However, the issue of the fast deactivation still remains an apparent challenge, which requires more different perspectives to understand the deactivation ...
Yonghua Yu   +7 more
wiley   +1 more source

Effects of bicycle infrastructure interventions on physical activity in the general population: rapid review. [PDF]

open access: yesBMC Public Health
Stähler L   +5 more
europepmc   +1 more source

Pd(II)‐Catalyzed Strategies for the β‐Arylation of α‐Amino Acids: An Overview

open access: yesChemistry – A European Journal, EarlyView.
The graphical abstract summarizes the review “Pd(II)‐Catalyzed Strategies for the β‐Arylation of α‐Amino Acids: An Overview”, highlighting representative Pd(II)‐catalyzed methods for the β‐arylation of α‐amino acids. Key mechanistic features, substrate diversity, and synthetic relevance of these transformations are showcased. Abstract Metal‐catalyzed C─
Davide Illuminati   +4 more
wiley   +1 more source

Methyl on the Bridge: 2‐Methyl Propellane as Precursor for 1,3‐Substituted 2‐Methylated Bicyclo[1.1.1]Pentanes

open access: yesChemistry – A European Journal, EarlyView.
The synthesis of 2‐methyl propellane and its conversion to various 1,2‐ and 1,2,3‐di‐ and trisubstituted bicyclopentanes is reported. Abstract Bicyclo[1.1.1]pentanes (BCPs) have emerged as isosteric replacements for mono‐ and para‐substituted benzene rings in medicinal and materials applications, involving substitution at the BCP bridgehead (1,3 ...
Sean R. Verschaeve   +4 more
wiley   +1 more source

Self‐Immolative Gels: Programmable Degradation Using Self‐Immolative Linkers and Polymers

open access: yesChemistry – A European Journal, EarlyView.
Self‐immolative linkers and polymers undergo bond‐cleaving reaction cascades in response to specific stimuli. Their incorporation into gels can be harnessed to release cargo, induce property changes, or trigger degradation in a highly controlled manner. These functions can be employed in applications such as sensing and drug delivery.
Chuanfeng Li, Elizabeth R. Gillies
wiley   +1 more source

Home - About - Disclaimer - Privacy