Results 91 to 100 of about 59,812 (299)

Planetary Bistatic Radar [PDF]

open access: yes, 2018
Planetary radar observations offer the potential for probing the properties of characteristics of solid bodies throughout the inner solar system and at least as far as the orbit of Saturn.
Brozovic, M.   +4 more
core   +1 more source

Bioinspired Tissue Transparency: Achieving Sclera‐to‐Cornea Transplantation

open access: yesAdvanced Science, EarlyView.
A bioinspired decellularization‐compression‐locking tactic (DCLT) is developed to transform human sclerae into transparent corneal substitutes. These clear, robust, and pro‐regenerative substitutes are capable of repairing complex corneal injuries, including chemical burns, keratoconus, and penetrating wounds, demonstrating their clinical potential to ...
Xiuli Sun   +8 more
wiley   +1 more source

Radar reflection off extensive air showers

open access: yesEPJ Web of Conferences, 2013
We investigate the possibility of detecting extensive air showers by the radar technique. Considering a bistatic radar system and different shower geometries, we simulate reflection of radio waves off the static plasma produced by the shower in the air ...
Werner F.   +26 more
doaj   +1 more source

A Study of MMW Collision Avoidance Radar System for Trains

open access: yesLeida xuebao, 2013
Collision avoidance radar for trains is pregnant for safety transportation. In order to realize low cost and high performance of azimuth accuracy, we have developed MMW (Milli-Meter Wave) radar, which employs switched phased array and frequency stepped ...
Liu Hai-bo   +2 more
doaj   +1 more source

Hot Electron‐Assisted Noble‐Metal‐Free Synergistic Photothermal Catalyst for Solar‐Driven Wastewater Remediation and Microbial Disinfection

open access: yesAdvanced Science, EarlyView.
A multifunctional Bi2Te3@CdS hybrid system is presented for solar‐driven wastewater remediation and indoor disinfection. The catalyst coated on PU foam efficiently harvests visible‐NIR light to generate heat and reactive oxygen species, enabling the rapid mineralization of organic pollutants.
Manish Kumar Sharma   +10 more
wiley   +1 more source

Gallium Nitride Semiconductor Resonant Tunneling Transistor

open access: yesAdvanced Science, EarlyView.
Three‐terminal GaN semiconductor resonant tunneling transistors (RTTs), which comprise an double‐barrier AlN/GaN/AlN resonant tunneling diode integrated with a GaN high‐electron‐mobility transistor (HEMT) through epitaxial growth in series and parallel configuraions, respectively.
Fang Liu   +15 more
wiley   +1 more source

Improving physical layer security in distributed multiple‐input multiple‐output dual‐function radar‐communication systems

open access: yesIET Radar, Sonar & Navigation
A distributed multiple‐input multiple‐output (MIMO) dual‐function radar‐communication (D‐MIMO DFRC) system is composed of multiple distributed dual‐function transmitters, multiple radar receivers and multiple communication receivers, which is capable of ...
Safieh Jebali   +2 more
doaj   +1 more source

Recent Developments of Reflectarray Antennas in Dual-Reflector Configurations

open access: yesInternational Journal of Antennas and Propagation, 2012
Recent work on dual-reflector antennas involving reflectarrays is reviewed in this paper. Both dual-reflector antenna with a reflectarray subreflector and dual-reflectarrays antennas with flat or parabolic main reflectarray are considered.
Carolina Tienda   +2 more
doaj   +1 more source

Nanodiamond Regulated Electrolyte Enhances Thermal, Chemical and Structural Properties for Highly Reversible Zn Metal Anodes

open access: yesAdvanced Science, EarlyView.
Nanodiamond additives are dispersed in the aqueous electrolyte to organize water molecules, suppress gas evolution and metal corrosion, and guide zinc to deposit more uniformly. Together with enhanced thermal conductivity for fast heat removal, this strategy reduces temperature rise and degradation, enabling safer, more durable rechargeable zinc metal ...
Jiayan Zhu   +7 more
wiley   +1 more source

MR‐DELTAnet: A Longitudinal MRI‐Transformer Model Predicting Pathological Complete Response and Revealing Immune Microenvironment via scRNA‐seq in Locally Advanced Rectal Cancer

open access: yesAdvanced Science, EarlyView.
The MR‐DELTAnet model utilizes longitudinal MRI to predict treatment response after neoadjuvant chemoradiotherapy in locally rectal cancer patients, accurately identifying patients likely to achieve pathological complete response for personalized management.
Wuteng Cao   +14 more
wiley   +1 more source

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