Results 91 to 100 of about 37,035 (297)

Vortex rope instabilities in a model of conical draft tube

EPJ Web of Conferences, 2017
We report on experimental studies of the formation of vortex ropes in a laboratory simplified model of hydroturbine draft tube. Work is focused on the observation of various flow patterns at the different rotational speed of turbine runner at fixed flow ...
Skripkin Sergey, Tsoy Mikhail, Kuibin Pavel, Shtork Sergey   +3 more
doaj   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Effects of cutting the blade on the performance and pressure pulsation of a centrifugal pump

Energy Science & Engineering, 2020
To solve the severe flow‐induced vibration during the pump operation, the impeller cut is a reasonable and operable approach. In the present study, effects of cutting the blade on the pump performance, especially for pressure pulsations, are conducted by
Ning Zhang, Bo Gao, Xiaojun Wang, Xiaokai Liu, Dan Ni   +4 more
doaj   +1 more source

Consumed by Abdominal Distention

Arthritis Care &Research, Accepted Article.
Abimbola Fadairo‐Azinge, James Grenert, Brian Haas, Mary Margaretten   +3 more
wiley   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Laboratory modeling of flow regimes in a draft tube of Francis hydro-turbine

EPJ Web of Conferences, 2017
The paper reports on some results of the experimental study of flow and pressure pulsations in a laboratory model of the draft tube (DT) of Francis-99 hydro-turbine over a broad range of operating regimes. Velocity distributions at the model inlet varied
Shtork Sergey, Litvinov Ivan, Mitryakov Andrey, Hanjalic Kemal   +3 more
doaj   +1 more source

Ventriculoperitoneal Shunt Drainage Increases With Gravity and Cerebrospinal Fluid Pressure Pulsations: Benchtop Model. [PDF]

Neurosurgery, 2021
Koueik J, Iskandar BJ, Yang Z, Kraemer MR, Armstrong S, Wakim V, Broman AT, Medow J, Luzzio C, Hsu DA.   +9 more
europepmc   +1 more source

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

Advanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann, Christoph Findler, Michael Olney‐Fraser, Lev Kazak, Fedor Jelezko   +4 more
wiley   +1 more source

Analysis and Experiment of Damping Characteristics of Multi-Hole Pressure Pulsation Attenuator

Machines
Aviation hydraulic systems operate under high pressure and large flow rates, which induce significant fluid pressure pulsations and hydraulic shocks in pipelines.
Shenghao Zhou, Na Zhou, Yukang Zhang, Guoshuai Wang, Xinyu Li, Hui Ma, Junzhe Lin   +6 more
doaj   +1 more source

Author Correction: Decade-long monitoring of seismic velocity changes at the Irpinia fault system (southern Italy) reveals pore pressure pulsations. [PDF]

Sci Rep, 2022
De Landro G, Amoroso O, Russo G, D'Agostino N, Esposito R, Emolo A, Zollo A.   +6 more
europepmc   +1 more source