Results 31 to 40 of about 20,769,954 (368)

CFI: Control Flow Integrity or Control Flow Interruption?

open access: yes2019 IEEE East-West Design & Test Symposium (EWDTS), 2019
Runtime memory vulnerabilities, especially present in widely used languages as C and C++, are exploited by attackers to corrupt code pointers and hijack the execution flow of a program running on a target system to force it to behave abnormally. This is the principle of modern Code Reuse Attacks (CRAs) and of famous attack paradigms as Return-Oriented ...
Maunero N., Prinetto P., Roascio G.
openaire   +3 more sources

Comparative Study of Dynamic Stall between an Aircraft Airfoil and a Wind Turbine Airfoil in an Air–Particle Flow

open access: yesApplied Sciences, 2021
Dynamic stall in clean air flow has been well studied, but its exploration in air–particle (air–raindrop or air–sand) flow is still lacking. The aerodynamic performance loss of aircraft (NACA0012) and wind turbine (S809) airfoils and their differences ...
Junjun Jin   +4 more
doaj   +1 more source

Supersonic flow control [PDF]

open access: yesShock Waves, 2015
Shock wave-induced boundary layer interactions are unavoidable in high-speed flows. The strong adverse pressure gradient imposed by the shock on the incoming undisturbed boundary layer may result in flow separation that is associated with low-frequency oscillations of the separation shock.
Verma, S., Hadjadj, Abdellah
openaire   +5 more sources

Marking function of Stokes number on airfoils’ aerodynamic penalties in a gas–solid flow

open access: yesIET Renewable Power Generation, 2021
This paper aims to employ the Stokes number to mark aerodynamic penalties of airfoils caused by particles, which is crucial to implement their scaling experiments in a gas‐solid flow.
Junjun Jin   +4 more
doaj   +1 more source

Numerical Research on the NS-SDBD Control of a Hypersonic Inlet in Off-Design Mode

open access: yesAerospace, 2022
The overall performance of a scramjet inlet will decline while entering off-design mode. Active flow control using nanosecond surface dielectric barrier discharge (NS-SDBD) can be a novel solution to such inlet–unstart problems.
Yilun Yan, Jiangfeng Wang
doaj   +1 more source

Flow control by a hybrid use of machine learning and control theory [PDF]

open access: yesInt. J. Numer. Meth. Heat Fluid Flow 34, 3253-3277 (2024), 2023
Flow control has a great potential to contribute to the sustainable society through mitigation of environmental burden. However, high dimensional and nonlinear nature of fluid flows poses challenges in designing efficient control laws. This paper aims to propose a hybrid method (i.e., machine learning and control theory) for feedback control of fluid ...
arxiv   +1 more source

Investigation of active flow control of jet deflection rate in passive secondary flow thrust vectoring nozzle

open access: yesAIP Advances, 2022
Jet deflection rate is an essential index in the research of thrust vector control technology. The vectoring deflection of the jet is an unsteady flow.
Shaoqing Chi   +3 more
doaj   +1 more source

On 1-D PDE-Based Cardiovascular Flow Bottleneck Modeling and Analysis: A Vehicular Traffic Flow-Inspired Approach [PDF]

open access: yesarXiv, 2021
We illustrate the potential of PDE-based traffic flow control in cardiovascular flow analysis, monitoring, and control, presenting a PDE-based control-oriented formulation, for 1-D blood flow dynamics in the presence of stenosis. This is achieved adopting an approach for modeling and analysis that relies on the potential correspondence of 1-D blood ...
arxiv  

Phase-based control of periodic fluid flows [PDF]

open access: yes, 2020
Fluid flows play a central role in scientific and technological development, and many of these flows are characterized by a dominant oscillation, such as the vortex shedding in the wake of nearly all transportation vehicles. The ability to control vortex shedding is critical to improve the aerodynamic performance of these unsteady fluid flow systems ...
arxiv   +1 more source

Toward Adaptive and Scalable OpenFlow-SDN Flow Control: A Survey

open access: yesIEEE Access, 2019
Software-defined networking (SDN) is an emerging network architecture that promises to simplify network management, improve network resource utilization, and boost evolution and innovation in traditional networks.
Mohammed Alsaeedi   +2 more
semanticscholar   +1 more source

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