Results 81 to 90 of about 15,866 (229)

Design and Implementation of Reliability-Centered Maglev Train Maintenance Management Information System

IEEE Access
With the rapid development of maglev transportation technology, maglev trains have entered the commercial operation stage worldwide. At present, the maintenance of maglev trains is shifting from traditional planned maintenance to preventive maintenance ...
Yong-Pan Hu, Zi-Kang Li, Peng-Fei Song, Guo-Bin Lin, Jun-Qi Xu   +4 more
doaj   +1 more source

The Impact of Obesity on Durable Left Ventricular Assist Device Implantation: A Systematic Review and Meta‐Analysis

Artificial Organs, EarlyView.
14 100 LVAD patients across 21 studies were analyzed. Findings indicated that obese LVAD recipients had lower short‐term mortality and higher risk of infection, thrombosis and right heart failure. There was no difference in long‐term survival between obese and non‐obese patients.
Hugh Jacobs, Olivia Frost, Arian Arjomandi Rad, Wing Kiu Chou, Sadeq Al‐Saegh, Alina Zubarevich, Alexander Weymann, Arjang Ruhparwar, Lukman Amanov, Peyman Sardari Nia, Antonios Kourliouros, Thanos Athanasiou   +11 more
wiley   +1 more source

Driveline Infections Among Patients Supported With Left Ventricular Assist Devices: A Single Center Sixteen‐Year Longitudinal Profile

Artificial Organs, EarlyView.
Our study of 1026 LVAD implants revealed HeartWare had lower driveline infection rates than other LVAD types. In addition, severe diabetes was associated with higher risk, while older age and coronary artery disease were linked to a lower risk of driveline infections.
Anh Nguyen, Alexis Shafii, Gabriel Loor, Andrew Civitello, O. Howard Frazier, Todd Rosengart, Kenneth Liao   +6 more
wiley   +1 more source

Linear Model Predictive Control and Back-Propagation Controller for Single-Point Magnetic Levitation with Different Gap Levitation and Back-Propagation Offline Iteration

Actuators
Magnetic suspension balance systems (MSBSs) need to allow vehicle models to levitate stably in different attitudes, so it is difficult to ensure the stable performance of the system under different levitation gaps using a controller designed with single ...
Ziyu Liu, Fengshan Dou
doaj   +1 more source

Large gap magnetic suspension system [PDF]

The design of a large gap magnetic suspension system is discussed. Some of the topics covered include: the system configuration, permanent magnet material, levitation magnet system, superconducting magnets, resistive magnets, superconducting levitation ...
Abdelsalam, Moustafa K., Eyssa, Y. M.
core   +1 more source

Disturbance Attenuation in a Magnetic Levitation System with Acceleration Feedback [PDF]

, 2011
The objective of this work is to demonstrate the use of acceleration feedback to improve the performance of a maglev system, especially in disturbance attenuation.
Kevin, Craig, Nagurka, Mark L., Tian, Feng   +2 more
core   +1 more source

Hemocompatibility and Long‐Term Outcomes in HeartWare Versus HeartMate II Versus HeartMate 3: Multicenter Real‐World Cohort

Artificial Organs, EarlyView.
Multicenter real‐world cohort (n = 327) comparing LVADs: HeartMate 3 (HM3), HeartMate II (HMII), and HeartWare (HVAD). HM3 showed superior long‐term survival versus legacy devices, driven by fewer hemocompatibility‐related adverse events, especially pump thrombosis and ischemic stroke, while major bleeding was similar across devices.
Hamza H. H. Ben Nasir, Ahmed F. A. Mohammed, Omar Allham, Alish Kolashov, Yusuf Shieba, Lachmandath Tewarie, Bernd Panholzer, Ajay Moza, Assad Haneya, Rashad Zayat   +9 more
wiley   +1 more source

Repulsive force support system feasibility study [PDF]

A new concept in magnetic levitation and control is introduced for levitation above a plane. A set of five vertical solenoid magnets mounted flush below the plane supports and controls the model in five degrees of freedom.
Abdelsalam, M. K., Boom, R. W., Eyssa, Y. M., Mcintosh, G. E.   +3 more
core   +1 more source

Does Gastrointestinal Bleeding Increase the Risk of Thromboembolic Events in Patients Supported With CF‐LVADs?

Artificial Organs, EarlyView.
Gastrointestinal bleeding significantly increases thromboembolic risk. Higher risk was also seen in patients aged ≥ 50 years, Black patients, and those with older CF‐LVAD models. ABSTRACT Background Gastrointestinal bleeding is a common complication in continuous‐flow left ventricular assist device (CF‐LVAD) patients. Managing gastrointestinal bleeding
Anh Nguyen, Alexis Shafii, Gabriel Loor, Subhasis Chatterjee, Andrew Civitello, O. Howard Frazier, Kenneth Liao   +6 more
wiley   +1 more source

Demonstration experiments for solid state physics using a table top mechanical Stirling refrigerator

, 2012
Liquid free cryogenic devices are acquiring importance in basic science and engineering. But they can also lead to improvements in teaching low temperature an solid state physics to graduate students and specialists.
, , , , , A Palacio Morales, Devoille L, H Suderow, J G Rodrigo, Lewowski T, M R Osorio, Ortuño M, Prester M, S Vieira, Saito Y, Timmerhaus K D, Tinkham M, White G K   +17 more
core   +1 more source