Results 121 to 130 of about 230,956 (294)

Weather radar detection of planetary boundary layer and smoke layer top of peatland fire in Central Kalimantan, Indonesia. [PDF]

open access: yesSci Rep, 2021
Rahman MA   +7 more
europepmc   +1 more source

Communicational Radar Detection Technology

open access: yesLeida xuebao, 2020
With the emergence of stealth and jamming technology, traditional radar systems are facing great challenges in terms of innovation, number, and energy. It is necessary to develop novel detection systems, explore the initiative of cooperative detection, and utilize the dimensions of information to adapt to new air defense operations in the future.
Longfei SHI   +3 more
openaire   +1 more source

Constraint of Lignin–Carbohydrate Complex Orchestrated on Polyphenol in Oil–Water Interface Targeting Ulcerative Colitis Therapy

open access: yesAdvanced Science, EarlyView.
This study constructed the W1/O/W2 emulsion–based targeted therapy delivery system for ulcerative colitis (UC) utilizing LCC as surfactant for the first time. This multifunctional emulsion offered certain therapeutic advantages for UC, including targeted colonic delivery of active compounds, synergistic modulation of gut microbiota through combined ...
Qian Wu   +9 more
wiley   +1 more source

Palomar Planet-Crossing Asteroid Survey (PCAS) January 1990 - February 1991 [PDF]

open access: yes
Several of our near-Earth asteroid (NEA) discoveries made relatively close approaches to the Earth allowing successful radar observations to be made. Detection of echoes from these asteroids provides otherwise unavailable information about their physical
Helin, Eleanor F.
core   +1 more source

Endometrial Epithelial Lactate Deficiency Drives CD8+ T‐Cells Dysregulation in Unexplained Recurrent Implantation Failure

open access: yesAdvanced Science, EarlyView.
Unexplained recurrent implantation failure (RIF) represents a significant clinical challenge. Our results demonstrate that reduced lactate production in the RIF endometrium impairs the suppression of cytotoxic CD8+ T‑cells, allowing their proliferation and thereby disrupting the local immune balance essential for successful embryo implantation.
Yuanlin He   +18 more
wiley   +1 more source

Study to investigate and evaluate means of optimizing the Ku-band combined radar/communication functions for the space shuttle [PDF]

open access: yes
The performance of the space shuttle orbiter's Ku-Band integrated radar and communications equipment is analyzed for the radar mode of operation. The block diagram of the rendezvous radar subsystem is described. Power budgets for passive target detection
Alem, W., Udalov, S., Weber, C. L.
core   +1 more source

Hierarchical Reconfigurable Metasurface Based on Scenario‐Guided Functional Modules and Programmable Core

open access: yesAdvanced Science, EarlyView.
This paper proposes a hierarchical reconfigurable metasurface architecture (HRMA) to achieve comprehensive electromagnetic parameter modulation and on‐demand polymorphic function switching. The reconfigurable metasurface is divided into a programmable core (PC) and scenario‐guided functional modules (FMs), exhibiting significant flexibility and ...
Lihao Zhu   +11 more
wiley   +1 more source

Full-pulse Multi-jammer Cooperative Jamming Method for Active-passive Radar Composite Detection

open access: yesLeida xuebao
In an increasingly complex electromagnetic environment, the composite detection of active-passive radar, with its excellent complementary advantages, has become an important working mode for enhancing the combat capability and anti-interference ...
Wen JIANG   +6 more
doaj   +1 more source

Discovering Interpretable Semantics from Radio Signals for Contactless Cardiac Monitoring

open access: yesAdvanced Science, EarlyView.
This study presents a semantic representation framework for clinically interpretable cardiac monitoring from contactless radio signals. It formulates radio semantic learning as an information‐bottleneck problem and approximates the objective via intra‐modal compression and cross‐modal alignment, structuring radio measurements into meaningful semantic ...
Jinbo Chen   +10 more
wiley   +1 more source

Tramway obstacles detection based on information fusion of MMV radar and machine vision

open access: yes物联网学报, 2017
A method of obstacle detection based on information fusion of millimeter wave radar and machine vision sensor was proposed.Firstly,the millimeter wave radar and camera calibration,image and radar realize spatiotemporal data synchronization,the target ...
Guang-yao ZHAI   +5 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy