Results 31 to 40 of about 257 (137)

Diverse reactivity of maleimides in polymer science and beyond

Polymer International, Volume 74, Issue 4, Page 296-306, April 2025.
This mini‐review provides a thorough overview of maleimide chemistry, highlighting its diverse reactivity in polymer and materials science applications. Abstract Maleimides are remarkably versatile functional groups, capable of participating in homo‐ and copolymerizations, Diels–Alder and (photo)cycloadditions, Michael additions, and other reactions ...
Bruce E Kirkpatrick, Kristi S Anseth, Tayler S Hebner   +2 more
wiley   +1 more source

Accurate Feature Extraction from Historical Geologic Maps Using Open-Set Segmentation and Detection

Geosciences
This study presents a novel AI method for extracting polygon and point features from historical geologic maps, representing a pivotal step for assessing the mineral resources needed for energy transition. Our innovative method involves using map units in
Aaron Saxton, Jiahua Dong, Albert Bode, Nattapon Jaroenchai, Rob Kooper, Xiyue Zhu, Dou Hoon Kwark, William Kramer, Volodymyr Kindratenko, Shirui Luo   +9 more
doaj   +1 more source

DARPA Robotics Grand Challenge Participation and Ski-Type Gait for Rough-Terrain Walking

Engineering, 2015
In this paper, we briefly introduce the history of the Defense Advanced Research Projects Agency (DARPA) Grand Challenge programs with particular focus on the 2012 Robotics Challenge.
Hongfei Wang, Shimeng Li, Yuan F. Zheng
doaj   +1 more source

Key Technical Fields and Future Outlooks of Space Manipulators: A Survey

SmartBot, EarlyView.
This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen, Zeyuan Huang, Ying Yan, Xiaokang An, Zhikai Zhao, Jirong Lin, Xiangrong Zhao, Xianyuan Gao, Junyi Zong, Xuewen Jia, Zhipeng Yao, Jianliang Liao, Ning Ji   +12 more
wiley   +1 more source

Are carfentanil and acrylfentanyl naloxone resistant?

Frontiers in Psychiatry
The rapid rise in deaths since 2012 due to opioid poisoning is correlated with the proliferation of potent synthetic opioid agonists such as fentanyl, acrylfentanyl, and carfentanil.
Michael G. Feasel, Theodore S. Moran, Boyle C. Cheng, Saadyah Averick   +3 more
doaj   +1 more source

Numerical Investigation of Tip Vortex Cavitation Inception and Noise of Underwater Propellers of Submarine Using Sequential Eulerian–Lagrangian Approaches

Applied Sciences, 2020
In this study, the high-fidelity numerical methods are developed to investigate the tip vortex cavitation (TVC) inception and noise of underwater propellers, namely, Model-A and Model-B, which are designed to investigate the effects of sweep angle on ...
Garam Ku, Cheolung Cheong, Ilryong Park, Hanshin Seol   +3 more
doaj   +1 more source

Numerical Investigation of the Maneuvering Forces of Different DARPA Suboff Configurations for Static Drift Condition

Journal of Eta Maritime Science, 2023
In this study, the maneuvering forces and moments of the DARPA Suboff submarine model were determined under static drift condition using computational fluid dynamics (CFD) methods.
Hasan Öztürk, Kadir Beytulllah Gündüz, Yasemin Arıkan Özden   +2 more
doaj   +1 more source

Understanding and Mitigating Bias From Artificial Intelligence in Otolaryngology: A State‐of‐the‐Art Review

World Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.
ABSTRACT Objective To provide an overview of potential biases resulting from the utilization of artificial intelligence (AI) in otolaryngology and techniques to mitigate them. Data Sources Literature review and expert opinion. Conclusions AI promises to fundamentally transform medicine.
Matthew T. Ryan, David A. Gudis
wiley   +1 more source

Complete aortic thrombosis in a ruptured mycotic aneurysm due to infection with Burkholderia pseudomallei

Indian Journal of Vascular and Endovascular Surgery, 2019
Complete thrombosis of the aorta in patients with abdominal aneurysms is extremely rare. The risk factors, natural history, and rupture risk are not well known.
Darpa Narayan Hazra, Indrani Sen, Amit Mahajan, Sunil Agarwal   +3 more
doaj   +1 more source

DARPA: the Differentiator

, 2020
today the U.S. is facing many internal and external challenges. Internally, productivity growth rate has slowed down significantly in the past 15 years; externally, rising powers, such as China and Russia, are challenging American hegemony. In this article we argue that the Defense Advanced Research Projects Agency (DARPA) is the differentiator that ...
openaire   +3 more sources