Results 81 to 90 of about 81,818 (284)

First wide field-of-view X-ray observations by a lobster eye focusing telescope in orbit [PDF]

open access: green, 2022
C. Zhang   +77 more
openalex   +1 more source

2.5 m wide-field and high-resolution telescope [PDF]

open access: yesSCIENTIA SINICA Physica, Mechanica & Astronomica, 2019
We propose to construct a 2.5 m wide-field and high-resolution telescope (WeHiT).It will be the first facility in the world with a special innovative design and can conduct bothhigh-resolution solar observations and the wide-field night sky survey. Its scientific objectivescover solar physics, time-domain astronomy, galactic astrophysics, and exoplanet
FANG Cheng   +14 more
openaire   +1 more source

A Robotic Urinary Bladder Enabling Volume Monitoring and Assisted Micturition

open access: yesAdvanced Intelligent Systems, EarlyView.
An implantable robotic bladder is presented that can store urine in an origami‐designed enclosure. An inductance sensing principle can monitor and transfer the urine volume in real‐time. It can actively expand based on the amount of urine collected from kidneys and apply on‐demand mechanical compression to assist urination.
Izadyar Tamadon   +4 more
wiley   +1 more source

Zwicky Transient Facility and Globular Clusters: The Period–Luminosity and Period–Wesenheit Relations for SX Phoenicis Variables in the gri Band

open access: yesThe Astronomical Journal, 2023
SX Phoenicis (SXP) variables are short-period pulsating stars that exhibit a period–luminosity (PL) relation. We derived the gri -band PL and extinction-free period–Wesenheit (PW) relations, as well as the period-color and reddening-free period-Q-index ...
Chow-Choong Ngeow   +6 more
doaj   +1 more source

Multimodal Locomotion of Soft Robots

open access: yesAdvanced Intelligent Systems, EarlyView.
This review comprehensively surveys recent advances in multimodal locomotion within soft robotics. Typical locomotion modes are summarized and categorized. Furthermore, the underlying mechanisms enabling multimodal locomotion are discussed and classified into three primary categories: active control‐based, reconfiguration‐based, and environment ...
Zihao Yuan   +4 more
wiley   +1 more source

Myoelectric Origami‐Based Soft Robotic Knee Exoskeleton to Enhance Sit‐to‐Stand Assistance in Elderly Populations

open access: yesAdvanced Intelligent Systems, EarlyView.
This work presents a lightweight Miura‐origami soft knee exoskeleton powered by vacuum actuation and integrated with a multimodal physiological intent‐recognition system, providing real‐time assistance during sit‐to‐stand movement to reduce muscle effort and improve user comfort.
Yuchuan Jia   +5 more
wiley   +1 more source

Understanding pulsar magnetospheres with the SKAO

open access: yesThe Open Journal of Astrophysics
The SKA telescopes will bring unparalleled sensitivity across a broad radio band, a wide field of view across the Southern sky, and the capacity for sub-arraying, all of which make it the ideal instrument for studying the pulsar magnetosphere. This paper
Lucy S Oswald   +24 more
doaj   +1 more source

Multi-Fiber Spectroscopy by Wide-Field Telescopes [PDF]

open access: yesSymposium - International Astronomical Union, 1995
Fiber-fed multi-object systems are now the preferred instruments for gathering spectroscopic data on survey scales. The technique lends itself particularly well to telescopes with fields of 30 arcminutes or more. This paper gives a broad overview of the instrumental considerations involved in its implementation.
openaire   +1 more source

Animal models of benign airway stenosis: Advances in construction techniques, evaluation systems, and perspectives

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Currently, the animals commonly used to establish animal models of benign airway stenosis (BAS) include mice, rats, pigs, dogs, rabbits, and ferrets. The establishment methods involve one or a combination of two methods such as mechanical injury, tracheal cautery, cuff overpressure intubation, laser injury, and endoscopic silver nitrate cauterization ...
Wusheng Zhang   +6 more
wiley   +1 more source

Real-time Collision-free Motion Planning for Next-generation Fiber Positioners in LAMOST

open access: yesThe Astronomical Journal
Multiobject fiber-fed spectrographs have thousands of fiber positioners packed on a focal plane with shared working space to move the fiber-ends in parallel, which maximizes observation time.
Guifeng Chen   +4 more
doaj   +1 more source

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