Results 111 to 120 of about 156,828 (341)

2D Metalorganic Ferromagnets

open access: yesAdvanced Science, EarlyView.
The single‐layered 2D metalorganic coordination network Ni‐TCNE, made from Ni atoms and tetracyanoethylene molecules on a gold surface, is established as a ferromagnet with a high magnetic remanence and coercive field. Its Curie temperature is between 10 and 20 kelvin.
Egzona Isufi Neziri   +7 more
wiley   +1 more source

The use of transcatheter aortic valve replacement vs surgical aortic valve replacement for the treatment of aortic stenosis

open access: yesResearch Reports in Clinical Cardiology, 2015
Hanna A Jensen, Lillian L Tsai, Vinod H Thourani Division of Cardiothoracic Surgery, Joseph B Whitehead Department of Surgery, Structural Heart and Valve Center, Emory University School of Medicine, Atlanta, GA, USA Abstract: Severe aortic stenosis (AS)
Jensen HA, Tsai LL, Thourani VH
doaj  

Massive TAVR

open access: yesJACC: Case Reports, 2020
A 65-year-old woman with a large adnexal mass was found to have severe bicuspid aortic valve stenosis. Transcatheter aortic valve replacement was chosen rather than surgical aortic valve replacement because of concerns over risks.
Siddharth Chauhan, MD   +4 more
doaj  

Resilient and Flexible Electrohydrodynamics Pumps for Human–Machine Interfaces

open access: yesAdvanced Science, EarlyView.
This study introduces resilient and flexible electrohydrodynamic (EHD) pumps designed to enhance human–machine interfaces. These pumps are both quiet and compact, featuring a unique electrode configuration that overcomes the typical limitations associated with dielectric breakdowns and subsequent permanent failures.
Yu Kuwajima   +13 more
wiley   +1 more source

Flight Testing of Latch Valve with Lightweight LV-Servo Direct Drive Mechanism [PDF]

open access: yesarXiv
In the field of rocket technology, the latch valve assumes a pivotal role in regulating the flow of fuel gases and liquids to ensure the requisite energy supply. This project endeavors to innovate by replacing the conventional step motor mechanism with a servo motor for latch valve control.
arxiv  

Tricuspid Valve Replacement [PDF]

open access: yesOperative Techniques in Thoracic and Cardiovascular Surgery, 2003
Donald B. Doty, John R. Doty
openaire   +1 more source

Bioinspired Mechanisms and Actuation of Soft Robotic Crawlers

open access: yesAdvanced Science, EarlyView.
Researchers have been developing soft materials and robotic crawlers inspired by soft‐bodied animals to mimic effective crawling in complex environments. This review explores the state‐of‐the‐art in soft crawlers, highlighting the interaction between materials, crawling mechanisms, actuation, and applications. The review concludes by providing insights
Min Pan   +6 more
wiley   +1 more source

A Bayesian homogeneity test for comparing Poisson populations

open access: yesApplied Stochastic Models in Business and Industry, Volume 38, Issue 6, Page 1158-1171, November/December 2022., 2022
Abstract For a wide class of daily applications in industrial quality control, there may be interest in comparing several Poisson means. A large catalogue of frequentist procedures for this hypothesis testing problem is available. However, some common drawbacks of them are their low power, interpretation of the p$$ p $$‐values for multiple comparison ...
Francisco Javier Girón   +2 more
wiley   +1 more source

All-cause procedural readmissions following transcatheter aortic valve replacementCentral MessagePerspective

open access: yesJTCVS Open, 2023
Objective: With expanding eligibility criteria, transcatheter aortic valve replacement is being performed on patients with longer life expectancy, and subsequent procedures after index transcatheter aortic valve replacement are inevitable.
Paige Newell, MD   +10 more
doaj  

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