Results 51 to 60 of about 6,853,746 (262)

A 3D Bioprinted Spheroid‐Laden dECM‐Enriched Osteosarcoma Model for Enhanced Drug Testing and Therapeutic Discovery

open access: yesAdvanced Healthcare Materials, EarlyView.
A 3D biomimetic OS model was developed by bioprinting an OS‐cell‐derived dECM‐enriched bioink with OS spheroids incorporated. The model showed upregulation of known OS prognostic markers and increased resistance to doxorubicin, compared to 2D cultures and scaffold‐free spheroids, making this a more clinically relevant platform for drug discovery ...
Margarida F. Domingues   +6 more
wiley   +1 more source

Analysis of Flexible Output Power Adjustment for Traction Substation inElectrified Railway

open access: yesKongzhi Yu Xinxi Jishu, 2020
The catenary of electrified railway adopts single-phase single-side power supply mode, the power supply capacity of transformer winding supplying power to each power supply section is fixed, and it is difficult to support each other between power supply ...
HAO Zuolin   +3 more
doaj  

Efficiency of adjustable few-stage filter compensating installations in AC traction network

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2018
The paper gives comparative characteristic of a continuously adjustable and stepwise adjustable (switchable) filter-compensating installations (FCI) in the traction network of AC railways.
L. A. German
doaj   +1 more source

Spatial Patterning of Modular Gelatin‐Peroxide Microspheres in Melt‐Electrowritten Scaffolds Provides Controlled Oxygen Generation and Mitigates Hypoxia and Cytotoxicity

open access: yesAdvanced Healthcare Materials, EarlyView.
A bioassembly approach is described using photo‐crosslinked gelatin‐based microgels containing calcium peroxide (CaO2) to generate oxygen (O2) and enhance cell survival in hypoxic conditions (1% O2). Bioassembly enables spatial patterning of individual CaO2‐laden and mesenchymal stem cell (MSC)‐laden microgels and allows for decoupling and mitigating ...
Axel E. Norberg   +5 more
wiley   +1 more source

A Novel Power Supplying Method for Electrified Railway Based on HVDC

open access: yesKongzhi Yu Xinxi Jishu, 2013
It presented a novel power supplying method of electrified railway based on HVDC according to the energy efficiency issues of traditional traction network such as low power factor, high harmonic contents, insufficient grid-voltage and high energy loss ...
HE Bojun   +4 more
doaj  

Melt Electrowriting High Resolution Poly(ethylene‐co‐vinyl acetate) Scaffolds for Soft Tissue Engineering

open access: yesAdvanced Healthcare Materials, EarlyView.
This work pioneers melt electrowriting (MEW) of polyethylene vinyl acetate (PEVA) to fabricate ultra‐compliant, high‐resolution scaffolds. By integrating microscale precision with soft tissue‐like biomechanics, PEVA overcomes stiffness‐driven limitations of conventional MEW polymers, establishing a mechanically biomimetic platform for soft tissue ...
Finn Snow   +9 more
wiley   +1 more source

Impact analysis of traction loads on power grid based on probabilistic three-phases load flow

open access: yesThe Journal of Engineering, 2019
Electrified railway traction power supply system is directly powered by 110 kV or 220 kV (some 330 kV) high-voltage power grid. The uncertainty, non-linearity, and asymmetry of traction loads like the electric locomotives and electric multiple units ...
Yulong Che   +5 more
doaj   +1 more source

Common Signatures of Altered Gene Regulation and Invasiveness of Different Breast Cancer Cell Lines after Matrix Interface Crossing

open access: yesAdvanced Healthcare Materials, EarlyView.
Interface transmigration reprograms triple‐negative breast cancer cells, triggering a shared switch toward more aggressive and invasive phenotypes. Using a collagen I interface model, this study identifies shared transcriptional changes involving proliferation, chromatin remodeling, and DNA repair pathways.
Cornelia Clemens   +3 more
wiley   +1 more source

Study on self-adaptive real-time dynamic modeling approach of metro traction power supply system

open access: yes机车电传动, 2022
The varying number and location of traction substations along urban rail transit system lines, the time-varying characteristics of the DC traction power supply system network structure caused by continuous operation of trains, the DC traction network ...
TAO Yan
doaj  

Energy accounting in AC substations in case of transit currents flowing through the contact network

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2017
The purpose of the work is to clarify the methodology for determining the electric power consumption of traction substations of AC electric power for the transit of external power supply.
V. M. Varentsov   +2 more
doaj   +1 more source

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