Results 131 to 140 of about 5,413 (290)

Fetal Brain Abnormalities Following Laser Surgery for Twin‐to‐Twin Transfusion Syndrome: Imaging Patterns and Evolution

open access: yesPrenatal Diagnosis, EarlyView.
ABSTRACT Introduction Severe brain injury has been reported following fetoscopic laser ablation (FLA) for twin‐to‐twin transfusion syndrome (TTTS), but imaging patterns and temporal evolution remain poorly defined. This study aimed to characterize the progression of severe brain injury after FLA. Methods We conducted a retrospective case series of TTTS
Yada Kunpalin   +8 more
wiley   +1 more source

Research on the Integration of Space Laser Communication and Ranging

open access: yesGuangtongxin yanjiu
【Objective】With the continuous advancements in satellite and communication technologies, the integration of space laser communication and ranging technology becomes more mature.
WANG Xi   +9 more
doaj  

Subcarrier intensity modulated free-space optical communication systems

open access: yes
This thesis investigates and analyses the performance of terrestrial free-space optical communication (FSO) system based on the phase shift keying pre-modulated subcarrier intensity modulation (SIM).
Popoola, Wasiu Oyewole
core  

Applications and prospects of artificial intelligence and digital medicine in pediatric nasal skull base tumors

open access: yesPediatric Investigation, EarlyView.
Pediatric nasal skull base tumors present diagnostic and therapeutic challenges due to their deep location, nonspecific symptoms, and the narrow nasal cavity in children. Although artificial intelligence (AI) and digital medicine have advanced early diagnosis, multidisciplinary treatment, and prognosis, their application in these rare tumors remains ...
Xiuping Wu   +5 more
wiley   +1 more source

Laser tracking and communication with satellites

open access: yes, 1968
Laser tracking and communication with ...
Plotkin, H. H.
core  

Proteomic Profiling of Myofiber Repair Annexins and Their Role in Duchenne Muscular Dystrophy

open access: yesPROTEOMICS, EarlyView.
ABSTRACT Myofiber regeneration and membrane repair play crucial roles in maintaining the continuous physiological functioning of the neuromuscular system. A swift and efficient repair mechanism enables the rapid restoration of sarcolemmal integrity following cellular impairment in damaged skeletal muscles.
Paul Dowling   +6 more
wiley   +1 more source

Control System for the Navigation of the Agricultural Robots: A Review

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Control systems for the navigation of autonomous agricultural robots—particularly those operating in uneven terrain and in the presence of static or dynamic obstacles—have advanced considerably in recent years. As conventional machinery evolves toward increasingly automated systems, the design of reliable navigation controllers has become ...
Edna Carolina Moriones Polanía   +3 more
wiley   +1 more source

Research on Topology Management and Routing for Navigation Constellations with Hybrid Laser/Microwave Links

open access: yes天地一体化信息网络
Hybrid laser/microwave links system can combine the advantages of high speed and low latency of laser links and the stability of microwave links in harsh environments to provide more reliable and efficient communication services for satellite navigation ...
Zhang Xinyi   +6 more
doaj  

Paper Session III-B - The Photon Satellite: A Demonstration of Satellite Laser Tracking and Communications

open access: yes, 1996
An alliance of Florida universities and companies are proposing to construct a small satellite to demonstrate the feasibility of laser communications for satellite to groundairborne receivers and ground-airborne to satellite receivers. The possibility of
Moldwin, Mark B., Phillips, Ronald L.
core  

The Evolution of Autonomous Systems for Planetary Cave Exploration: A Review

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT The exploration of Subsurface Access Points (SAPs), such as lava tubes on the Moon and Mars, has gained significant interest due to their potential as stable environments shielded from surface radiation and temperature extremes. These sites are considered high‐value targets for detecting water and signs of ancient life, and assessing their ...
Sarah Swinton   +4 more
wiley   +1 more source

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