Results 111 to 120 of about 18,359 (304)

Fast Electrical Balance Duplexer Tuning Using Neural Networks for RF Self-Interference Cancellation in In-Band Full-Duplex Systems

IEEE Access
In in-band full-duplex systems, the self-interference of radio frequency poses a significant challenge that limits the operational efficiency of modern telecommunications infrastructure.
Hyunjin Kim, Kabseok Ko, Kuduck Kwon, In-Chul Hwang, Seungyoung Park   +4 more
doaj   +1 more source

By‐product of heparin extraction as a sustainable alternative to enhance the use of nitrogen in agriculture

Environmental Progress &Sustainable Energy, EarlyView.
Abstract This study evaluates the potential of a new organic fertilizer derived from porcine intestinal mucosa (designated BHE), a by‐product of the heparin extraction process, as a sustainable nitrogen (N) source for agriculture. The work was conducted in two stages: (i) chemical and spectroscopic characterization of BHE compared with poultry litter ...
Aline Zanquetti, Felipe Augusto Bueno Rossi, Jonatas Thiago Piva, Larissa Macedo dos Santos‐Tonial   +3 more
wiley   +1 more source

A Deep Learning Framework for Forecasting Medium‐Term Covariance in Multiasset Portfolios

Journal of Forecasting, EarlyView.
ABSTRACT Forecasting the covariance matrix of asset returns is central to portfolio construction, risk management, and asset pricing. However, most existing models struggle at medium‐term horizons, several weeks to months, where shifting market regimes and slower dynamics prevail.
Pedro Reis, Ana Paula Serra, João Gama
wiley   +1 more source

DC-DC Boost Converter with Constant Output Voltage for Grid Connected Photovoltaic Application System [PDF]

, 2010
The main purpose of this paper is to introduce an approach to design a DC-DC boost converter with constant output voltage for grid connected photovoltaic application system.
Chan, Pui Weng
core  

High Performance, Continuously Tunable Microwave Filters using MEMS Devices with Very Large, Controlled, Out-of-Plane Actuation

, 2018
Software defined radios (SDR) in the microwave X and K bands offer the promise of low cost, programmable operation with real-time frequency agility. However, the real world in which such radios operate requires them to be able to detect nanowatt signals ...
Beacken, Marc, Bishop, David J., Chang, Jackson, Holyoak, Michael, Imboden, Matthias, Kannell, George   +5 more
core   +1 more source

Geochemical and Geological Investigation of Skarn‐Type Pb–Zn Mineralization in Hastanetepe (Balya‐Balıkesir, Türkiye): An Approach Based on Fluid Inclusions, Sulphur Isotopes and Geochemical Data

Geological Journal, EarlyView.
Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley   +1 more source

Placement of Distributed Generation and Shunt Capacitor in Distribution Network using Cuckoo Search Algorithm

Nigerian Journal of Technological Development, 2020
This work aims at reduction in active and reactive power loss reduction in distribution networks as well as to improve the voltage stability of the networks.
Moses Uchendu
doaj  

A DAQ System for Linear Collider TPC Prototypes based on the ALEPH TPC Electronics

, 2004
Within the international studies of a high energy linear electron positron collider, several groups are developing and testing prototypes for a Linear Collider TPC.
Ball, M., Ghodbane, N., Janssen, M., Wienemann, P.   +3 more
core   +1 more source

Rapidly pulsed, high intensity, incoherent light source [PDF]

, 1974
A rapid pulsing, high intensity, incoherent light is produced by selectively energizing a plurality of discharge lamps with a triggering circuit. Each lamp is connected to a capacitor, and a power supply is electrically connected to all but one of the ...
Brandhorst, H. W., Jr., Evans, J. C., Jr.   +1 more
core   +1 more source

Revisiting the Nexus Between Trade Liberalisation and Income Inequality: The Case of Sub‐Saharan African Countries

International Journal of Finance &Economics, EarlyView.
ABSTRACT This paper examines the impact of trade liberalisation on income inequality across 24 Sub‐Saharan African (SSA) countries from 2000 to 2020. Using IV‐Tobit and 2SLS models, we consistently find that greater trade openness significantly exacerbates inequality in the region. Critically, we document an inverted U‐shaped relationship between trade
Guivis Zeufack Nkemgha, Le Roi Nso Fils, Ulrich Kevin Kamwa   +2 more
wiley   +1 more source