Results 41 to 50 of about 12,674 (311)

High‐Resolution and Real‐Time In Situ Generation of Cellular Spheroids by Laser‐Assisted Bioprinting for Guided Microvascularization

open access: yesAdvanced Functional Materials, EarlyView.
Micro‐injection laser‐assisted bioprinting enables ultrafast and precise patterning of small endothelial cell spheroids by injecting a highly concentrated single‐cell suspension into GelMA/ColMA hydrogels. In co‐culture with fibroblasts, controlled pre‐vasculogenic network formation is obtained at microscale resolution.
Charles Handschin   +9 more
wiley   +1 more source

Automated monitoring of parking infrastructure using machine learning and computer vision methods

open access: yesTransportation and Information Technologies in Russia
Background. The article examines the current problem of parking space shortage in modern urban conditions. The authors have developed an innovative solution based on an automated monitoring system using computer vision and deep learning methods.
Alla E. Krivonogova, Alexey G. Isavnin
doaj   +1 more source

Characteristics, Impacts and Trends of Urban Transportation

open access: yesEncyclopedia, 2022
Economic growth, urban development and the prosperity of the automobile industry have driven a huge shift in global urban transportation from walking to public transportation and then to automobiles.
Yuan Gao, Jiaxing Zhu
doaj   +1 more source

Road Expansion and Urban Highways: Consequences Outweigh Benefits in Kathmandu [PDF]

open access: yes, 2017
Rapid urbanization has transformed Kathmandu Valley, Nepal, one of the fastest growing metropolitan regions in South Asia. This urbanization, in turn, is leading to considerable social, economic, and environmental stress.
Chand, Priyankar Bahadur   +2 more
core   +1 more source

Dispensing Volumetric Additive Manufacturing

open access: yesAdvanced Functional Materials, EarlyView.
Dispensing volumetric additive manufacturing (DVAM) prints 3D structures inside a photocurable resin droplet suspended from the tip of a glass pipette, enabling sequential printing without resin vats or manual part removal. Real‐time droplet profiling and ray‐tracing‐based correction compensate for optical distortion at the curved resin‐air interface ...
Hongryung Jeon   +5 more
wiley   +1 more source

Economic and Infrastructure Determinants of Road Traffic Fatalities: Panel Evidence from the Visegrad Countries

open access: yesCommunications
In this study are analysed the determinants of road traffic fatalities in the Visegrad Group countries during 2000-2024, using a balanced panel and fixed-effects models with Driscoll-Kraay standard errors.
Adela Poliaková   +3 more
doaj   +1 more source

Transportation policy profiles of Chinese city clusters: A mixed methods approach

open access: yesTransportation Research Interdisciplinary Perspectives, 2019
Chinese cities have experienced diverse urbanization and motorization trends that present distinct challenges for municipal transportation policymaking.
Joanna Moody   +4 more
doaj   +1 more source

Selective wear of cuttings elements of working organs of tillage machines with realization of self-sharpening effect [PDF]

open access: yes, 2013
The clause of strengthening of cuttings elements is conditioning and realization of such selforganization process as a self-sharpening. Sharpening of horizontal and vertical cuttings elements of working organs of tillage machines (CE WOTM) is considered ...
Aulin, V.   +2 more
core  

Swelling‐Programmed Topographical Guidance for Dynamic Spheroid Self‐Assembly via a Mechanochemical Hydrogel Niche

open access: yesAdvanced Functional Materials, EarlyView.
A swelling‐programmed micropatterned hydrogel guides adherent cells through a controlled transition from cell–matrix anchoring to cadherin‐mediated cell–cell compaction, enabling rapid assembly of high‐viability spheroids with defined size and morphology.
Han Gyeol Nam   +8 more
wiley   +1 more source

Information presentation and physical motorization: the mediating role of embodied learning

open access: yesCogent Education
Online learning has become a daily mode of modern education, and its effect on learning outcomes has also been widely discussed. Engagement, satisfaction and academic performance are often used to measure learning outcomes, while factors such as physical
Chenmu Xie, Yiyu Ouyang
doaj   +1 more source

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