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Mid-Infrared High-Power InGaAsSb/AlGaInAsSb Multiple-Quantum-Well Laser Diodes Around 2.9 μm
Published 2025-01-01“…The quantum wells exhibit high crystalline quality, as evidenced by distinct satellite peaks in XRD curves with a full width at half maximum (FWHM) of 56 arcseconds for the zeroth-order peak, a smooth surface with a root mean square (RMS) roughness of 0.19 nm, room-temperature photoluminescence with high luminous efficiency and narrow FHWM of 35 meV, and well-defined interfaces. These attributes effectively suppress non-radiative recombination, thereby enhancing internal quantum efficiency in the antimonide laser. …”
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62
An Adaptive Photovoltaic Topology to Overcome Shading Effect in PV Systems
Published 2015-01-01“…Shading in photovoltaic systems can cause many undesired effects. When shading occurs, the power generated from the PV system is much less than nominal power, increasing the electrical mismatching losses between PV system components. …”
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Mutual Coupling Effect on Ultrawideband Linear Antenna Array Performance
Published 2011-01-01“…Two fabricated array prototypes with corporate feed are fabricated and tested to validate the theoretical analysis. The effect of using T-junction power divider is clear on the reflection coefficient |S11|. …”
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Theoretical Study of the Pre-Plasma Density Scale Length’s Influence on the Absorption Efficiency in Laser–Solid Interaction at Relativistic Laser Intensities for PW-Class Lasers...
Published 2025-01-01“…This work studied the pre-plasma that builds up in interactions of focused high-power PW-class lasers with solid targets at the target surface facing the laser beam, and its impact on the global laser absorption efficiency as well as on the spectral cut-off energy of laser-generated proton beams. …”
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Effects of Absorber Emissivity on Thermal Performance of a Solar Cavity Receiver
Published 2014-01-01“…Solar cavity receiver is a key component to realize the light-heat conversion in tower-type solar power system. It usually has an aperture for concentrated sunlight coming in, and the heat loss is unavoidable because of this aperture. …”
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Performance Investigation of Air Velocity Effects on PV Modules under Controlled Conditions
Published 2017-01-01“…Additionally, the results were also determined at two different module angular positions: at 0° angle, that is, parallel to air direction and at 10° angle with the direction of coming air to consider the effects of tilt angles. Afterwards, the thermal analysis of the modules was performed using Ansys-Fluent in which junction temperature and heat flux of modules were determined by applying appropriate boundary conditions, such as air velocity, heat flux, and solar radiation. …”
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Annealing Effects on GaAs/Ge Solar Cell after 150 keV Proton Irradiation
Published 2020-01-01Get full text
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70
Photodegradation of Rhodamine B Using the Microwave/UV/H2O2: Effect of Temperature
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Maximizing Energy Output of Photovoltaic Systems: Hybrid PSO-GWO-CS Optimization Approach
Published 2023-09-01“…BSD also causes a series of a peak in the power-voltage characteristics of the PV array, trapping traditional maximum Power Point Tracking (MPPT) methods in local peaks. …”
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The Effect of Additional TiO2 Nanofluid on Heat Transfer Rate and Thermal Resistance on Processor Cooling with Ultrasonic Vibration
Published 2022-10-01“…This has an impact on the power consumed by the processor will increase, along with increasing power, the heat emission generated will also increase. …”
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Effects of Homeopathic Arsenicum Album, Nosode, and Gibberellic Acid Preparations on the Growth Rate of Arsenic-Impaired Duckweed (Lemna gibba L.)
Published 2010-01-01“…It may also be useful to investigate the influence of external factors (e.g., heat, electromagnetic radiation) on the effects of homeopathic preparations.…”
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Comparison of plasma start-up with high Z and low Z first wall in WEST
Published 2025-01-01“…Finally, analysis of the legacy of B powder drops on a number of start-up plasmas suggests that it is less effective at reducing radiated power when the first wall is covered with W.…”
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Automatic Calibration Using a Modified Genetic Algorithm for Millimeter-Wave Antenna Modules in MIMO Systems
Published 2020-01-01“…Herein, we adopt a design example involving a 64-element MIMO antenna array arranged in a triangular lattice (instead of the commonly used rectangular lattice) to achieve a 3°dB enhancement in effective isotropic radiated power. Analyzing a grating lobe diagram indicates a scan volume of ±60°/±45° in the azimuth/elevation direction. …”
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Metallic Nanotube Array Enabling Far Infrared Thermal Emitter Performance Enhancement
Published 2024-01-01“…Experimental validation via Fourier Transform Infrared (FTIR) measurements confirms a pronounced wavelength filtering effect, primarily centered at 10.2 μm. The device incorporating stainless steel MeNTA exhibits 1.4 times improvement in luminous efficiency, reaching 7.45 × 10<sup>−3</sup>, accompanied by a radiated power of 11.034 mW and 0.681 mW/mm<sup>2</sup> radiated power per area. …”
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Metrics and Methods for Evaluation of Over-The-Air Performance of MIMO User Equipment
Published 2012-01-01“…The variety of different MIMO operating modes and the almost unlimited choice of possible multipath channel conditions under which UE performance may be evaluated are not accounted for by established Single Input-Single Output (SISO) Over-The-Air (OTA) performance metrics like Total Isotropic Sensitivity (TIS) and Total Radiated Power (TRP). As pointed out in this contribution, meaningful metrics and cost-effective, low-complexity measurement methods can, nevertheless, be derived by focusing on characterization of the physical attributes of UE and by adopting statistical metrics. …”
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