Results 131 to 140 of about 5,335,934 (384)

Electrical and Mechanical Properties of Chick Embryo Heart Chambers [PDF]

open access: bronze, 1959
Robert J. Boucek   +2 more
openalex   +1 more source

Phase estimation as a quantum nondemolition measurement [PDF]

open access: yes, 2002
The phase estimation algorithm, which is at the heart of a variety of quantum algorithms, including Shor's factoring algorithm, allows a quantum computer to accurately determine an eigenvalue of an unitary operator. Quantum nondemolition measurements are
Milburn, G. J.   +2 more
core   +1 more source

Hydrogel‐Based Capacitive Sensor Model for Ammonium Monitoring in Aquaculture

open access: yesAdvanced Engineering Materials, EarlyView.
Traditional techniques for monitoring aquaculture water quality, particularly ammonium levels, harm fish. This work presents a novel capacitive sensor with an ionic hydrogel transducer to monitor ammonium concentration in real time based on the ammonium‐induced hydrogel dissociation and osmotic pressure. Monitoring aquaculture water quality, especially
Mohammad Mirzaee   +3 more
wiley   +1 more source

The International Society for Heart and Lung Transplantation/Heart Failure Society of America Guideline on Acute Mechanical Circulatory Support.

open access: yesThe Journal of Heart and Lung Transplantation, 2023
A. Bernhardt   +4 more
semanticscholar   +1 more source

Topological modes bound to dislocations in mechanical metamaterials

open access: yes, 2015
Mechanical metamaterials are artificial structures with unusual properties, such as negative Poisson ratio, bistability or tunable vibrational properties, that originate in the geometry of their unit cell.
A Stern   +18 more
core   +1 more source

Development of Ternary Magnesium Alloys for Laser Powder Bed Fusion: Optimizing Oxide Layer Thickness

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing of magnesium alloys by laser is difficult because the melting point of the oxide layer is much higher than the evaporation temperature of the metal underneath. Making the oxide layer thinner can solve this problem. Alloying magnesium with strontium makes the oxide layer thinner, especially at 0.5 wt%.
Elmar Jonas Breitbach   +8 more
wiley   +1 more source

Outcomes related to hospital characteristics of heart transplant centers: A National Readmission Database analysis

open access: yesJHLT Open
Background: This study showcases an analysis performed using the National Readmission Database (NRD) from 2016 to 2019 to analyze the impact of ownership, location, size, and teaching status of transplant centers on cardiac transplant outcomes.
Farshad Amirkhosravi, MD, MPH   +9 more
doaj  

Performance evaluation of a pulsatile ventricular assist device under non physiologic pumping frequencies by means FEM and 2D approach [PDF]

open access: yes, 2017
A ventricular assist device (VAD) is a blood pump that works in parallel with heart. It is used as a mechanical assistance for patients that suffer cardiac insufficiency: as a therapy, as a bridge to transplant or to extend life.
Di Paolo, José, Fríes, Exequiel R.
core  

A Novel Approach to Produce Metal–Metal Composites by Leveraging Immiscibility: Laser Powder Bed Fusion of Nanosilver‐Dispersed Titanium

open access: yesAdvanced Engineering Materials, EarlyView.
Incorporating nanosized silver into titanium for antimicrobial materials exploits the metastable miscibility gap between silver and titanium. Silver nanoparticles are synthesized via pulsed laser ablation in liquid. Silver addition refines the microstructure, increases hardness by 30%, and reduces Staphylococcus capitis microbial adhesion by 70%, with ...
Hamed Shokri   +4 more
wiley   +1 more source

Successful management of left main coronary artery thrombus with intracoronary thrombolysis

open access: yesTürk Kardiyoloji Derneği Arşivi, 2014
The management of valvular heart diseases with mechanical valves has been performed for several years. Warfarin has been used in patients with mechanical heart valves to protect against thromboembolic complications; nevertheless, in these patients ...
Ufuk Gürkan   +3 more
doaj   +1 more source

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