Results 131 to 140 of about 182,132 (300)

Emergency relief venting of the infrared telescope liquid helium dewar, second edition [PDF]

An updated analysis is made of the emergency relief venting of the liquid helium dewar of the Spacelab 2 Infrared Telescope experiment in the event of a massive failure of the dewar guard vacuum.
Urban, E. W.
core   +1 more source

Swift Launch Fact Sheet [PDF]

, 2004
This brochure describes the science of NASA's Swift satellite mission. Swift's primary goal is to unravel the mystery of gamma ray bursts.

core  

Fully 3D‐Printed Wave‐Wound Electromagnetic Motors

Advanced Materials Technologies, EarlyView.
This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe, Sebastian Mettes, Eduardo Francke, Kenneth W. Allen, Yi Chen Mazumdar   +4 more
wiley   +1 more source

UTact: Underwater Vision‐Based Tactile Sensor with Geometry Reconstruction and Contact Force Estimation

Advanced Robotics Research, EarlyView.
Embedded flexible sensing technologies advance underwater soft robotics, yet most systems still suffer from hysteresis and limited perceptiveness. Instead, vision‐based tactile sensors provide reliable and rapid feedback essential for complex underwater tasks.
Qiyi Zhang, Zonghao Zuo, Haoxuan Wang, Bin Liu, Yilidusi Yilihamu, Li Wen   +5 more
wiley   +1 more source

A Sudden Fine-scale Bright Kernel Captured by Hi-C Flare in 11 MK Emission during an M1.6-class Solar Flare’s Postmaximum Phase

The Astrophysical Journal Letters
On 2024 April 17, the third successful Hi-C sounding rocket flight, Hi-C Flare, recorded coronal images in Fe XXI 129 Å emission from 11 MK plasma during the postmaximum phase of an M1.6-class solar flare, achieving unprecedented spatial (∼300 km) and ...
Sanjiv K. Tiwari, Navdeep K. Panesar, Ronald L. Moore, Sabrina L. Savage, Amy R. Winebarger, Genevieve D. Vigil, Juraj Lörinčík, Vanessa Polito, Bart De Pontieu, Leon Golub, Ken Kobayashi, Patrick Champey, Jenna Samra, Anna Rankin, Robert W. Walsh, Crisel Suarez, Christopher S. Moore, Adam R. Kobelski, Jeffrey W. Reep, Charles Kankelborg   +19 more
doaj   +1 more source

Isolation and Characterization of a Lytic Phage PaTJ Against Pseudomonas aeruginosa

Viruses
Pseudomonas aeruginosa is a major global threat to human health, and phage therapy has emerged as a promising strategy for treating infections caused by multidrug-resistant pathogens. In this study, we isolated and characterized a Pseudomonas lytic phage,
Jiayu Gu, Xinqiao Zhang, Tianlang Liu, Yunxue Guo   +3 more
doaj   +1 more source

TacScope: A Miniaturized Vision‐Based Tactile Sensor for Surgical Applications

Advanced Robotics Research, EarlyView.
TacScope is a compact, vision‐based tactile sensor designed for robot‐assisted surgery. By leveraging a curved elastomer surface with pressure‐sensitive particle redistribution, it captures high‐resolution 3D tactile feedback. TacScope enables accurate tumor detection and shape classification beneath soft tissue phantoms, offering a scalable, low‐cost ...
Md Rakibul Islam Prince, Sheeraz Athar, Pokuang Zhou, Yu She   +3 more
wiley   +1 more source

Personalized Human Astrocyte‐Derived Region‐Specific Forebrain Organoids Recapitulate Endogenous Pathological Features of Focal Cortical Dysplasia

Advanced Science
Focal cortical dysplasia (FCD) is a highly heterogeneous neurodevelopmental malformation, the underlying mechanisms of which remain largely elusive. In this study, personalized dorsal and ventral forebrain organoids (DFOs/VFOs) are generated derived from
Jinhong Xu, Yufei Kong, Nawen Wang, Huijuan Li, Yunteng Li, Zhuo Liu, Yuling Yang, Xiao Yu, Huihui Liu, Jing Ding, Yi Wang, Rui Zhao, Zhicheng Shao   +12 more
doaj   +1 more source

Manufacturing and test procedures for Aerobee 350 burst diaphragms [PDF]

Manufacturing and test procedures for fuel and oxidizer burst diaphragms for Aerobee 350 propellant start ...
Hungerford, W. J., Munford, J. A.
core   +1 more source

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

Advanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis, Luis Carlos Sanjuan Acosta, Shubh P. Mehta, Baiyan Qi, Yang Yang, Luis Solorio, Craig J. Goergen, David J. Cappelleri   +7 more
wiley   +1 more source