Results 51 to 60 of about 15,169 (268)

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

open access: yesAdvanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan   +9 more
wiley   +1 more source

Variable Stiffness Flexure Structures Enabled by Phase‐Change Gallium and Adhesive Interfacial Locking for Soft Robotic Applications

open access: yesAdvanced Engineering Materials, EarlyView.
A flexure‐based variable stiffness structure is developed by integrating phase‐change modulation and adhesive interfacial locking of gallium. The design enables a wide stiffness variability, transitioning from soft, flexible behavior to rigid, load‐supporting performance.
Sungjin Kim   +2 more
wiley   +1 more source

New generation intelligent operation and control management system enhancing metro station operations

open access: yesJournal of Highway and Transportation Research and Development
This article discusses the need for digitalization, as well as the concept and features of a next-generation intelligent operation and control management system (IOCMS) based on digitalization.
Jiabin Zhu
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

Demand-driven Design Method for Rail Transit Vehicles

open access: yesChengshi guidao jiaotong yanjiu
[Objective]To address the diverse design needs of different products and meet customer requirements for quick design and manufacture of high-speed trains, it is necessary to study demand-driven design methods for rail transit vehicles.
ZHANG Gongbin   +3 more
doaj   +1 more source

Ultrasonic transit time flowmetry in robotic totally endoscopic CABG

open access: yesHeart Views, 2011
Successful use of transit time flowmetry in robotic totally endoscopic coronary bypass operation is reported to demonstrate its applicability and ease of use in evaluating the function of grafts in such operations.
Amer Chaikhouni, Abdulwahid Almulla
doaj   +1 more source

Determination of the Skip-Stop Scheduling for a Congested Transit Line by Bilevel Genetic Algorithm [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2011
This study focuses on how to determine the skip-stop scheduling for a congested urban transit line during the morning rush hours. A transit schedule with uneven headways and skip-stop operations is adopted to match the time-dependent demands and ...
Huimin Niu
doaj   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

open access: yesAdvanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Assessing the Benefits of On-demand Transit Service in a Small US Urban Region

open access: yesFindings
This study analyzes Trip Connect, an on-demand transit service offered in Johnson County, Iowa. The modeling suggests that while it would have been possible to complete 16.6% of weekday Trip Connect requests using the existing fixed-route transit network,
Bogdan Kapatsila   +2 more
doaj   +1 more source

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

open access: yesAdvanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

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