Results 131 to 140 of about 18,604,702 (305)

Fault Diagnosis of the Traction System Based on Wavelet Analysis and Deep Belief Network

open access: yesKongzhi Yu Xinxi Jishu, 2019
A novel fault diagnosis method based on wavelet analysis and deep belief network was proposed to locate faults of traction system accurately. Locomotive traction system data was collected and preprocessed, including those under normal and failure mode ...
TANG Lizhe   +3 more
doaj  

Real‐Time Monitoring of Mass and Mechanical Properties in Single Cells and Multicellular Spheroids

open access: yesAdvanced Science, EarlyView.
This study introduces photothermally actuated microcantilevers combined with optical microscopy to simultaneously measure morphology, mass, and mechanical properties of cellular systems in real‐time. The findings link cytoplasm‐dominated mechanical energy dissipation to the Q‐factor as a novel biophysical parameter.
Ilaria Incaviglia   +8 more
wiley   +1 more source

DC Traction Power Supply System Reliability Evaluation and Robust Design

open access: yes, 2019
Traction power supply system is one of the most important part of the railway system, which is responsible for providing electricity to power the running trains and other operating equipment.
Yilin Chen   +9 more
core   +1 more source

A Robust Bio‐Supportive Hydrogel Patch for Full‐Thickness Repair of Gastroesophageal Defects

open access: yesAdvanced Science, EarlyView.
Gastroesophageal defect repair remains a formidable clinical challenge plagued by high leakage and life‐threatening complications. We develop a double‐disc, highly crystalline PVA‐based RBS hydrogel patch featuring suture‐free sealing, robust acid/enzyme resistance and mechanical durability.
Xingqi Song   +13 more
wiley   +1 more source

Determining the Switching Frequency of a Transistor Converter for a Traction Collector Motor

open access: yesЗбірник наукових праць Державного університету інфраструктури та технологій: серія "Транспортні системи і технології"
The purpose of this work is to determine the switching frequency of a transistor converter for a traction collector motor of a locomotive based on the criterion of permissible current ripple. The stated goal is achieved by solving the following problem:
Ihor Kostenko   +3 more
doaj  

Intervention of Traction System

open access: yes, 2017
Trains and railways are influence our lives in a variety of ways we may not always realize. Passengers traveling across country get their destination safely and quickly with the use of trains and railway systems. Urban cities came up with importance of railways and railway stations in particular.
openaire   +1 more source

Experimental Evidences in Bearing Diagnostics for Traction System of High Speed Trains

open access: yes, 2013
Rolling element bearings are the most critical components in the traction system of high speed trains. Monitoring their integrity is a fundamental operation in order to avoid catastrophic failures and to implement effective condition based maintenance ...
Pennacchi, Paolo   +6 more
core   +1 more source

In Situ CO2‐Induced Hydrogels for Enhancing Carbon Sequestration in Saline Aquifers

open access: yesAdvanced Science, EarlyView.
A novel integrated method that combines in situ CO2‐induced phase‐transition hydrogels formed by a C22‐tailed tertiary amine dispersion with tailored deep eutectic solvents to increase CO2 sequestration in saline aquifers. ABSTRACT Carbon sequestration in saline aquifers underpins global net‑zero emission goals, yet existing CO2 storage capacity ...
Fuchuan Liu   +5 more
wiley   +1 more source

In Situ Photo‑Crosslinked Functional Bilayer Hydrogel Modulates Local Microenvironment and Remyelination After Optic Nerve Injury

open access: yesAdvanced Science, EarlyView.
A blue‐light‐crosslinked bilayer hydrogel was developed for local optic nerve repair. The adhesive GM‐Odex outer layer seals and anchors the lesion, while the non‐adhesive GM‐imid inner layer releases MPDA‐Cle without obstructing CSF flow. This system modulates oxidative and inflammatory microenvironments, supports oligodendrocyte differentiation and ...
Tonghe Pan   +13 more
wiley   +1 more source

FAK Mediated Coordination of Extracellular Matrix Remodeling and Cellular Mechanics Impairs Nanomedicine Delivery in Solid Tumors

open access: yesAdvanced Science, EarlyView.
FAK orchestrates a mechanical barrier limiting nanomedicine accumulation in solid tumors by coupling ECM remodeling with cytoskeletal tension. Genetic or pharmacological FAK inhibition dismantles this barrier, enhances clathrin‐mediated uptake and penetration, and overcomes delivery limitations to improve antitumor efficacy.
Tian Zhao   +11 more
wiley   +1 more source

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