Acoustic metamaterials represent an exciting frontier in the control of waves and vibrations. The precise control of acoustic waves is fundamental for key technological applications, ranging from sound insulation to ...
The primary aim of this thesis is to develop adaptive control strategies tailored for specific categories of uncertain single-input single-output (SISO) and interconnected multi-input multi-output (MIMO) fractional-order ...
The primary objective of this thesis is to develop models and optimize the performance of optical switches and power splitters based on directional couplers. These devices are essential components in optical telecommunication ...
Photonic crystals are periodic dielectric structures, at the wavelength scale, and with high index contrast. In such a medium, the propagation of light exhibits properties, if not exotic, at least surprising. These ...
This thesis deals with the study of attitude control systems and the development of control laws to ensure the stabilization of the attitude system. This was achieved by combining the dynamic systems control theory and ...
In this PhD Thesis, we address the problem of automatic ship detection acquires from SAR (Synthetic Aperture Radar) images in complex marine environments. Assuming a non-Gaussian sea clutter with no prior knowledge about ...
The extreme volatility of volatile organic compounds (COVs) molecules gives them the ability to diffuse far from their source of emission, resulting in direct and indirect impacts on ecosystems and human health. The exposure ...
This work is a proposal for a new structure of voltage sensor based on photonic crystals; it is composed of U-shaped photonic crystal ring resonator placed between two waveguides. The sensors structures have been changed ...
In the face of climate challenges and the depletion of fossil resources, a transition to
renewable energy is imperative. In this context, Algeria is harnessing its considerable solar potential, particularly in agricultural ...
Corona discharge is widely used not only to modify the physical characteristics of dielectric materials surfaces, but also as a charging technique for the granular mixtures in view of their electrostatic separation. ...
RADAR (Radio Detection and Ranging) is a detection system that uses radio waves to determine the distance (ranging) angle or velocity of objects. Two tasks are very important in radar system; Parameters Estimation and ...
The aim of this thesis, being the electrothermal modeling and analysis of the self-heating ""Self Heating"" of a HBT SiGe realized in BiCMOS9MW0.13µm technology. The architecture used for the design of the BiCMOS9MW bipolar ...
Kara Mostefa, Zohra; Chaabi, Abdelhafid(Université Frères Mentouri Constantine 1, 2022-09-29)
This thesis work is part of a study of a heterojunction bipolaire phototransistor (HPT) NPN
InP/InGaAs. The phototransistor is modelled using a numerical method, and the results are presented and
discussed. This model ...
A communication system based on WDM wavelength division multiplexing technology is a
better approach to achieve the optimal utilization of fiber capacity in order to increase the
number of communication channels, research ...
Wireless capsule endoscopic (WCE) is a non-invasive device, introduced in 2000, that is used
by physicians in the diagnosis of diseases of the gastrointestinal (GI) tract. Despite these limited
resources, one capsule can ...
In this work, an experimental study and analysis of the effects of environmental relative
humidity (RH %) on the transport mechanisms of electrical charges in PI films have been
presented. The evolution of the surface ...
The major challenge in the new emerging technologies like IoT and 5G is the obtention of available and enough spectrum resources for their transmissions. Hence, it becomes necessary to optimize the actual spectrum utilization ...
The MIMO (Multiple Input/Multiple Output) concept has been very successful in telecommunications. It is based on the use of several antennas for transmission and
several antennas for reception, which enabled the ...
This thesis represents a biomedical study and research, where we designed and fabricated a device
for the generation of cold atmospheric pressure plasma jet, In addition to implementing this device for
the cleansing of ...
In this thesis, we propose a new methodology for the non-invasive detection of blood
glucose using an electronic nose based on WO3, SnO2 and ZnO transducers. This approach is
an indirect detection of blood glucose by ...