Results 61 to 70 of about 60,224 (140)

Provider selection and task allocation model in telecommunications with QoS degradation policy

, 2014
Telecommunications has become a very competitive environment with numerous providers, carriers, and services recently. Every firm uses telecommunication networks in different amounts and ways to carry out their daily operations such as video conferencing, voice over IP and data applications.
Kasap, Nihat, Turan, Hasan Hüseyin, Savran, Hüseyin, Sivrikaya, Berna Tektaş   +3 more
openaire   +1 more source

Advantages of regional development—A study on poverty alleviation in contiguous destitute areas

International Studies of Economics, EarlyView.
Abstract The 2011–2020 period is the final stage of poverty alleviation in China, which emphasizes regional development. Using county‐level panel data from 2006 to 2015, we explore the impact of regional poverty alleviation policy on economic growth of contiguous destitute areas (CDAs) in China.
Du Hongyu
wiley   +1 more source

Symbol signal-to-noise ratio loss in square-wave subcarrier downconversion [PDF]

This article presents the simulated results of the signal-to-noise ratio (SNR) loss in the process of a square-wave subcarrier down conversion. In a previous article, the SNR degradation was evaluated at the output of the down converter based on the ...
Feria, Y., Statman, J.
core   +1 more source

Optimized reconstruction of the absorption spectra of kidney tissues from the spectra of tissue components using the least squares method

Journal of Biophotonics, EarlyView.
The absorption coefficient spectra of healthy and cancerous kidney tissues were reconstructed from the absorption spectra of tissue components using constant weights. Both reconstructions allowed to calculate the concentrations of the tissue components and a comparison between the healthy and chromophobe renal cell carcinoma kidney showed an increase ...
Maria R. Pinheiro, Luís E. Fernandes, Isa C. Carneiro, Sónia D. Carvalho, Rui M. Henrique, Valery V. Tuchin, Hélder P. Oliveira, Luís M. Oliveira   +7 more
wiley   +1 more source

SEEA Revision: Accounting for Sustainability? [PDF]

The 1993 United Nations System for integrated Environmental and Economic Accounting (SEEA) aimed at measuring the - environmental - sustainability of economic performance and growth in terms of produced and natural capital maintenance.
Peter Bartelmus
core  

Optical Method for the Detection of Viral RNA Using an Optical Fiber Sensor

Journal of Biophotonics, EarlyView.
This study presents a fiber‐optic sensor with a microsphere tip functionalized with a gold layer and oligonucleotide probes for detecting SARS‐CoV‐2 RNA at concentrations as low as 10−12 M in near real time. ABSTRACT This study introduces a fiber‐optic sensor functionalized with a sensing probe for SARS‐CoV‐2 RNA detection.
Patryk Sokołowski, Paweł Wityk, Joanna Raczak‐Gutknecht, Wiktoria Brzezińska, Michał Sobaszek, Paweł Kalinowski, Sebastian Garcia‐Galan, Małgorzata Szczerska   +7 more
wiley   +1 more source

Mid‐infrared Frequency‐Swept Laser at 50 MScans/s Via Frequency Down‐Conversion of Time‐Stretched Near‐Infrared Pulses

Laser &Photonics Reviews, EarlyView.
A mid‐infrared frequency‐swept source operating is presented at 50 MScans s−1 using frequency down‐conversion of time‐stretched 1.5‐µm pulses generated from an Er‐doped mode‐locked fiber laser. The developed source enables high‐resolution gas‐phase MIR spectroscopy with a bandwidth of 15 cm−1 and a resolution of 0.086 cm−1 at a measurement rate of 50 ...
Makoto Shoshin, Takahiro Kageyama, Takuma Nakamura, Kazuki Hashimoto, Takuro Ideguchi   +4 more
wiley   +1 more source

High Performance 1.3 µm III–V Quantum Dot Lasers Grown on Silicon via all MOCVD Epitaxy

Laser &Photonics Reviews, EarlyView.
Epitaxial growth of III–V lasers on Si substrates is technologically important for numerous applications in photonics. All‐metal‐organic chemical vapor deposition (MOCVD)‐grown 1.3 µm InAs/GaAs quantum dot laser diodes are demonstrated on Si with record‐high performances in terms of threshold current density, maximum operation temperature, and device ...
Honghwi Park, Seungchul Lee, Won Seok Han, Daehwan Jung, HoSung Kim   +4 more
wiley   +1 more source

Bioleaching as an Eco‐Friendly Nano‐Factory for Sustainable Inorganic Waste Management: Current Advancements, Challenges, and Opportunities

ChemistryOpen, EarlyView.
The review explores the latest updates and information about the global trends and hazards of e‐waste and also discusses the bioleaching of metals and nanoparticles from various inorganic wastes. It also focuses on the mechanistic pathway of the bioleaching process and computational aspects. Inorganic waste management and metal recovery technology pose
Adhish Jaiswal, S. Irudhaya Raj, Adegoke Isiaka Adetunji, Latifa Negadi, Sangeeta Singh, Kaniki Tumba, Indra Bahadur, Imran Uddin   +7 more
wiley   +1 more source

A method for interference mitigation in space communications scheduling [PDF]

Increases in the number of user spacecraft and data rates supported by NASA's Tracking and Data Relay Satellite System (TDRSS) in the S and Ku bands could result in communications conflicts due to mutual interference.
Rash, James L., Wong, Yen F.
core   +1 more source