Results 51 to 60 of about 147,812 (217)

Dynamic spectrum allocation strategy with probabilistic feedback mechanism and performance analysis

Tongxin xuebao, 2015
By introducing probabilistic feedback mechanism and energy detection threshold to cognitive radio networks,a novel dynamic spectrum allocation strategy is proposed to trade off the throughput and average delay of secondary users,as well as meet various ...
Shun-fu JIN, Shi-ying GE, Zhan-qiang HUO
doaj   +2 more sources

Research on performance and potential of distributed heating system for peak shaving with multi-energy resource

Scientific Reports
Climate change and its negative effects are driving the global shift from fossil fuels to renewable energy sources. To tackle the dependency on traditional energy sources in harsh winter regions and improve heating quality during periods of thermal ...
Tianyang Zhang, Bart Julien Dewancker, Weijun Gao, Xueyuan Zhao, Xindong Wei, Zu-An Liu, Weilun Chen, Qinfeng Zhao   +7 more
doaj   +1 more source

Fundamental Limitations in Energy Detection for Spectrum Sensing

Journal of Sensor and Actuator Networks, 2018
A key enabler for Cognitive Radio (CR) is spectrum sensing, which is physically implemented by sensor and actuator networks typically using the popular energy detection method.
Xiao-Li Hu, Pin-Han Ho, Limei Peng
doaj   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Simulation of a Natural Gas Solid Oxide Fuel Cell System Based on Rated Current Density Input

Energies
Solid Oxide Fuel Cells (SOFCs) offer high-efficiency electrochemical conversion of fuels like natural gas, yet detailed modeling is crucial for optimization.
Wenxian Hu, Xudong Sun, Yating Qin
doaj   +1 more source

Research on sustainable supply capacity of critical metals in China’s new energy vehicles under coupled allocation of primary and secondary resources [PDF]

Ziyuan Kexue
[Objective] This study aims to explore the impact trends of future new energy vehicle development on the demand and sustainable supply capacity of critical metals such as lithium, cobalt, and nickel in China. From the perspective of coupled allocation of
DONG Xuesong, CHEN Jinyu, HU Meimei
doaj   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Versatile vector tools for efficient protein screening across multiple expression systems

FEBS Open Bio, EarlyView.
A unified vector toolkit enables rapid protein expression screening across E. coli, insect, and mammalian cells. A single primer pair amplifies the target gene, which is inserted into any vector via a standardized interface. This streamlined workflow eliminates repeated cloning steps, accelerating the identification of optimal expression conditions for
Zhimin Zhu, Yaqing Liu, Lei Qin, Feng Yu, Qisheng Wang, Yahui Liu   +5 more
wiley   +1 more source

Preliminary Aircraft Design for Hybrid Electric Propulsion Architectures: A Focus on Critical Loss of Thrust

Aerospace
Hybrid electric propulsion architectures offer a promising solution for reducing fuel consumption and emissions in aviation. However, the introduction of dual-energy carriers adds complexity to preliminary aircraft design, particularly in terms of power ...
Jonas Mangold, Andreas Strohmayer
doaj   +1 more source