Results 101 to 110 of about 55,529 (261)

Low-Cost QCM Sensor System for Screening Semen Samples [PDF]

, 2010
Artificial insemination is a well-established part of modern agricultural practice. A viable semen sample is judged by the total number of spermatozoa (sperm) in the sample and the motility of the sperm.
Hughes, David, Carl R. Evans, Atherton, Shaun, Simon M. Stanley, Stanley, Simon, Newton, MI, Morris, Robert, Atherton, S, McHale, Glen, Evans, CR, Michael I. Newton, Newton, Michael, Evans, Carl, Morris, RH, Stanley, SM, Glen McHale, McHale, G, Robert H. Morris, Shaun Atherton, Hughes, DC, David C. Hughes   +20 more
core   +1 more source

Measurement and Analysis of Stick-Slip and High-Frequency Torsional Coupled Oscillations of Drill String

Shiyou jixie
The self-excited torsional oscillation of the drilling system can reduce the contact force between the bit and the formation or the relative velocity of the cutting force.To mitigate the impact of this mechanism,the torsional oscillation of the drill ...
Li Yumei, Deng Yanglin, Zhang Tao, Yu Liwei, Liu Ming   +4 more
doaj  

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

Advanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri, Oliver Paull, Ralph Bulanadi, Yasuhiro Sakamoto, Shintaro Yasui, Mikayla Lord, Mahak Chhabra, David Walker, Patrycja Paruch, Shery Chang, Nagarajan Valanoor, Daniel Sando   +11 more
wiley   +1 more source

Pilot-induced oscillation detection and mitigation [PDF]

, 2012
The aim of this thesis is to develop a real time PIO detection and mitigation system that consists of a detector based on short time Fourier transform(STFT) and autoregressive model(ARX) with exogenous inputs, together with an adaptive controller based
Liu, Qingling
core  

Flow over a cylinder subjected to combined translational and rotational oscillations [PDF]

, 2012
The experimental research reported here employs particle image velocimetry to extend the study of Nazarinia et al. (2009a), recording detailed vorticity fields in the near-wake of a circular cylinder undergoing combined translational and rotational ...
Mark C. Thompson, Mehdi Nazarinia, Lo Jacono, David, Thompson, Mark C., John Sheridan, David Lo Jacono, Nazarinia, Mehdi, Sheridan, John, Nazarinia, Mehdi; id_orcid   +8 more
core   +1 more source

Design and Optimization of a High-Frequency Oscillation Suppression Strategy for the Grid-Connected Inverter of a Permanent Magnet Direct Drive Wind Turbine

Energies
With the development of the new power system with a high proportion of new energy and a high proportion of power electronic equipment, various problems caused by high-frequency oscillation will seriously affect the daily normal operation of the power ...
Zhaoyang Liu, Yubo Yuan, Chuang Liu, Cong Sun, Zijun Bin   +4 more
doaj   +1 more source

High-Frequency Oscillation for ARDS [PDF]

New England Journal of Medicine, 2013
Ralf M, Muellenbach, Markus, Kredel, Peter, Kranke   +2 more
openaire   +9 more sources

Microfabricated Anisotropic Myobundles for the Scalable Production of Cardiac Tissue Grafts

Advanced Functional Materials, EarlyView.
Controlling the anisotropy of cardiac tissue remains an outstanding challenge in the field of cardiac tissue engineering. Here, we introduce an approach to generate anisotropic cardiac myobundles using cell‐adhesive, synthetic, electrospun fibers and stem cell‐derived cardiac fibroblasts.
Maggie E. Jewett, Javiera Jilberto, Margaret E. Stanley, David O. Ntim, Siddhi M. Bhirud, Avianna T. Schroeder, Gonzola X. Anyosa Galvez, Jingyi Xia, Samuel J. DePalma, Emmanouil Agrafiotis, Susan S. Xi, Amanda S. Bluem, Courtney M. Lestock, Adam S. Helms, David A. Nordsletten, Brendon M. Baker   +15 more
wiley   +1 more source

Experience with high frequency oscillation ventilation during the 2009 H1N1 influenza pandemic in Australia and New Zealand

, 2011
During the 2009 H1N1 pandemic, large numbers of patients had severe respiratory failure. High frequency oscillation ventilation was used as a salvage technique for profound hypoxaemia.
Thomas, J., McGuiness, S., Beca, J., Lassig-Smith, Melissa, Howe, B., Bass, F., Sherring, C., Shehabi, Y., Lipman, Jeffrey, Anthony, A., Long, D., Seppelt, I.M., Boyd, R., Boots, Robert J., Erickson, S., Stachowski, E.R., Weisbrodt, L., Parke, R., Stephens, DP   +18 more
core   +1 more source

Experimental Study and Numerical Simulation of Oscillation Phenomena in a Pressure Swirl Injector

Aerospace
In this study, experiments and numerical simulations were conducted to investigate the oscillation phenomena in a pressure swirl injector. The flow field was captured using high-speed photography, and the gray values were analyzed using the Matlab image ...
Juan Liu, Yifan Han
doaj   +1 more source