Results 31 to 40 of about 2,129,327 (343)

CREATION OF AFTERBURNING TURBOFAN ENGINE – HISTORY AND PRESENT

Авіаційно-космічна техніка та технологія, 2020
The main problems of the creation of afterburning turbofan engines, among which the irremovable surge of the compressor, is disclosed by historical analysis.
Volodymyr Gerasimenko, Vadym Datsenko, Mikhail Shevchenko   +2 more
doaj   +1 more source

Prediction of Stall Phenomenon in Blade-to-Blade Passage of Axial Flow Compressor [PDF]

Engineering and Technology Journal, 2009
The flow field between two blades was analyzed numerically by solving thesteady, two dimensional and incompressible (time-mass averaged Navier- Stokesequations).
Arkan K. Al-Taie, Abbas Abdul-Hussein
doaj   +1 more source

Polio Surge Capacity Support Program Contributions to Building Country Capacities in Support of Polio Outbreak Preparedness and Response: Lessons Learned and Remaining Challenges

Pathogens
Despite coordinated efforts at global level, through the Global Polio Eradication Initiative (GPEI), poliomyelitis disease (Polio) is still a major public health issue.
Fikru Abebe, Victor Anochieboh Eboh, Mesfin Belew Weldetsadik, Ibrahima Kone, Tessema Assegid Kebede, Paul Thomas Harries, Veh Kesse Fabien Diomande   +6 more
doaj   +1 more source

The Effect of DC Voltage Pre-Stress on the Breakdown Voltage of Air under Composite DC and LI Voltage and Test Circuit: Design and Application

Energies, 2022
The use of HVDC systems is increasing in number due to technological innovations, increasing power capacity and increasing customer demand. The characteristics of insulation systems under composite DC and LI voltage must be examined and clarified.
Mehmet Murat Ispirli, Özcan Kalenderli, Florian Seifert, Michael Rock, Bülent Oral   +4 more
doaj   +1 more source

A Model of Surge [PDF]

Symposium - International Astronomical Union, 1980
This paper reports on the application of a siphon flow model to the late stage of a surge observed in the UV radiation by the S055 experiment on board Skylab. The MgX λ625 and OVI λ1032 emissions from the density distributions occurring in flows which become supersonic at the top of the loop agree with the observations, indicating a pressure drop ...
openaire   +2 more sources

Monsoon-Induced Surge during High Tides at the Southeast Coast of Vietnam: A Numerical Modeling Study

Geosciences, 2019
In this study, monsoon-induced surge during high tides at the Southeast coast of Vietnam was analyzed based on the observed tide data at the Vung Tau station in the period between 1997—2016.
Nguyen Ba Thuy, Tran Quang Tien, Cecilie Wettre, Lars Robert Hole   +3 more
doaj   +1 more source

Unstable Flow Structures Present at Different Rotational Velocities of the Centrifugal Compressor

Energies, 2020
Unstable flow structures cause inevitable energy losses in all power energy systems, including turbomachines. In this study, a set of analyses was conducted with the use of spectral maps on the pressure signals obtained from an industrial centrifugal ...
Grzegorz Liśkiewicz, Kirill Kabalyk, Andrzej Jaeschke, Filip Grapow, Michał Kulak, Mateusz Stajuda, Władysław Kryłłowicz   +6 more
doaj   +1 more source

Obtaining Information about Operation of Centrifugal Compressor from Pressure by Combining EEMD and IMFE

Entropy, 2020
Based on entropy characteristics, some complex nonlinear dynamics of the dynamic pressure at the outlet of a centrifugal compressor are analyzed, as the centrifugal compressor operates in a stable and unstable state.
Yan Liu, Kai Ma, Hao He, Kuan Gao
doaj   +1 more source

Oyster shells as history books [PDF]

, 2003
[FIRST PARAGRAPH] A collaborative project was established in 2002 that has brought together geochemistry and archaeology in order to investigate environmental change and the harvesting strategies of ancient peoples.
Milner, N., Surge, D.
core  

From omics to AI—mapping the pathogenic pathways in type 2 diabetes

FEBS Letters, EarlyView.
Integrating multi‐omics data with AI‐based modelling (unsupervised and supervised machine learning) identify optimal patient clusters, informing AI‐driven accurate risk stratification. Digital twins simulate individual trajectories in real time, guiding precision medicine by matching patients to targeted therapies.
Siobhán O'Sullivan, Lu Qi, Pierre Zalloua   +2 more
wiley   +1 more source