Results 11 to 20 of about 371,940 (300)

“Bicycles and Tricycles” [PDF]

open access: yesNature, 1897
IN reading Mr. Boys' most interesting review of Mr. Sharp's book on “Bicycles and Tricyles” (NATURE, July 8), a few points occur to me as requiring further notice.
openaire   +1 more source

Bicycle patrols: an underutilized resource [PDF]

open access: yes, 2008
Foundational research on police use of bicycles for patrol. A participant/observation research design was used. A five-city, 32-shift study on the output of police bicycle patrols was conducted. Same and similar ride-alongs were conducted with bicycle
Menton, Chris
core   +2 more sources

Regulation vs. the Market: The Case of Bicycle Safety (Part I) [PDF]

open access: yes, 1991
This part of the article describes events leading to the creation of the Consumer Product Safety Commission - and the on-going debate between those who believe safety regulation is necessary and those who believe that market forces can achieve acceptable
Petty, Ross D.
core   +5 more sources

Research on hot extrusion forming of 7075 aluminum alloy wheel profile

open access: yesMetalurgija, 2023
Design the wheel mold according to the cross-sectional view of the lightweight aluminum alloy wheel profile, determine the length of its working belt and use HyperXtrude software to simulate it, verify the rationality of the working belt design, analyze ...
S. K. Shi   +5 more
doaj  

Parametric analysis of the stability of a bicycle taking into account geometrical, mass and compliance properties [PDF]

open access: yes, 2017
Some studies of bicycle dynamics have applied the Whipple Carvallo bicycle model (WCBM) for the stability analysis. The WCBM is limited, since structural elements are assumed to be rigid bodies.
Doria, Alberto   +3 more
core   +1 more source

Tire tracks and integrable curve evolution

open access: yes, 2018
We study a simple model of bicycle motion: a segment of fixed length in multi-dimensional Euclidean space, moving so that the velocity of the rear end is always aligned with the segment.
Bor, Gil   +3 more
core   +1 more source

Inhaled particle counts on bicycle commute routes of low and high proximity to motorised traffic [PDF]

open access: yes, 2012
Frequent exposure to ultrafine particles (UFP) is associated with detrimental effects on cardiopulmonary function and health. UFP dose and therefore the associated health risk are a factor of exposure frequency, duration, and magnitude of (therefore also
Cole-Hunter, Thomas   +4 more
core   +2 more sources

Modelling the Obstacles to using Bicycle Sharing Systems in the Tehran Metropolis: A Structural Analysis

open access: yesQuaestiones Geographicae, 2022
The main objective of the current research is to identify and prioritise the obstacles to using bicycle sharing systems (BSSs) in the Tehran metropolis. The methodology of this research is analytical-descriptive and it aims to achieve applied goals.
Akbari Majid   +4 more
doaj   +1 more source

Investigating impacts of environmental factors on the cycling behavior of bicycle-sharing users [PDF]

open access: yes, 2017
As it is widely accepted, cycling tends to produce health benefits and reduce air pollution. Policymakers encourage people to use bikes by improving cycling facilities as well as developing bicycle-sharing systems (BSS). It is increasingly interesting to
Hu, Xuke   +3 more
core   +4 more sources

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