Results 21 to 30 of about 2,174 (175)
Bone Cement Leakage-Induced Pulmonary Embolism: A Case Report. [PDF]
Clin Case RepABSTRACT Pulmonary cement embolism (PCE) is a rare but potentially fatal complication of bone cement augmentation procedures. We report a 61‐year‐old woman who developed profound hypoxemia immediately after lumbar decompression, fusion, and bone cement augmentation.
Xv Y, Bo Y.
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Following the Beat: Imaging the Valveless Pumping Function in the Early Embryonic Heart
Journal of Cardiovascular Development and Disease, 2022 In vertebrates, the coordinated beat of the early heart tube drives cardiogenesis and supports embryonic growth. How the heart pumps at this valveless stage marks a fascinating problem that is of vital significance for understanding cardiac development ...
Shang Wang, Irina V. Larina
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Achieving Full Forward Flow of Valveless Piezoelectric Micropump Used for Micro Analysis System
Actuators, 2022 The valveless piezoelectric micropump has the advantages of simple structure, high precision and low cost, which can realize the directional transport of micro-fluid and wildly be applied in a micro analysis system. However, backflow at the outlet cannot
Kai Li +6 more
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Development of an automated high-temperature valveless injection system for online gas chromatography [PDF]
Atmospheric Measurement Techniques, 2014 A reliable method of sample introduction is presented for online gas chromatography with a special application to in situ field portable atmospheric sampling instruments.
N. M. Kreisberg +5 more
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Valveless On-Chip Aliquoting for Molecular Diagnosis
Micromachines, 2023 The detection of nucleic acids as specific markers of infectious diseases is commonly implemented in molecular biology laboratories. The translation of these benchtop assays to a lab-on-a-chip format demands huge efforts of integration and automation.
Andersson A. Romero Deza +2 more
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Modeling of Valveless Micropumps [PDF]
Numerical Heat Transfer, Part A: Applications, 2009 There are two difficulties encountered in modeling valveless micropumps using lumped-element methods. The pressure loss coefficient for fluidic diodes used in valveless pumps to rectify flow depends on the flow direction. A problem arises in choosing the proper loss correlation because the flow direction is not known a priori.
Yeng-Yung Tsui, Shin-En Wu
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Valveless Pumping at Low Reynolds Numbers
Physical Review Applied, 2023 Pumping at low Reynolds number is a ubiquitously encountered feature, both in biological organisms and engineered devices. Generating net flow requires the presence of an asymmetry in the system, which traditionally comes from geometric flow rectifiers.
Amselem, Gabriel +2 more
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Journal of Cardiovascular Development and Disease, 2017 Valveless pumping phenomena (peristalsis, Liebau-effect) can generate unidirectional fluid flow in periodically compressed tubular conduits. Early embryonic hearts are tubular conduits acting as valveless pumps.
Florian Hiermeier, Jörg Männer
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Actuators, 2023 The valveless micropump based on dual synthetic jets is a potential fluid pumping device that has the ability to transport fluid continuously. In order to improve the performance of this device, a novel valveless continuous micropump based on dual ...
Jian-Yuan Zhang +5 more
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Vertebral Vascular Canal Dysplasia in Three Brachycephalic Breeds and Its Relationship With BOAS Grade. [PDF]
Vet Radiol UltrasoundABSTRACT The relationship between vertebral vascular canal dilation and raised intra‐abdominal and intrathoracic pressures has been observed in humans. Vertebral vascular canal dysplasia (VVCD) has recently been reported as a vertebral anomaly in brachycephalic dogs.
de Almeida Coelho M +3 more
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