Results 51 to 60 of about 18,209,815 (307)

The key technologies of tiltrotor pylon conversion actuator

Hangkong gongcheng jinzhan
Tiltrotor which combines the advantages of helicopters and fixed wing aircraft，is a key direction for future aviation equipment development. The key component of tiltrotor-pylon conversion actuator is focused.
LI Hailin, SI Jun, DANG Kexin, ZHANG Wei, LIU Longfei, WANG Xudong   +5 more
doaj   +1 more source

PERFORMANCE TEST ON UAV-BASED PHOTOGRAMMETRIC DATA COLLECTION [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
UAVs are becoming standard platforms for applications aiming at photogrammetric data capture. Since these systems can be completely built-up at very reasonable prices, their use can be very cost effective.
N. Haala, M. Cramer, F. Weimer, M. Trittler   +3 more
doaj   +1 more source

MARK4 enhances stress granule formation under oxidative stress and increases tau accumulation

FEBS Open Bio, EarlyView.
MARK4 (red dots) localizes to stress granules (orange dots) and promotes their formation under oxidative stress by modulating TIA1 (blue dots). MARK4 and TIA1 synergistically increase tau (purple) accumulation, and the reduction of the TIA1 ortholog suppresses neurodegeneration in a fly model.
Sho Nakajima, Kotone Watanabe, Grigorii Sultanakhmetov, Aoi Fukuchi, Keiya Ito, Sawako Shimizu, Taro Saito, Akiko Asada, Kanae Ando   +8 more
wiley   +1 more source

High‐Resolution MRI Revealed Different Etiology‐Specific Associations With Cerebral Infarction in Adult Moyamoya Vasculopathy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective High‐resolution MRI enables detailed assessment of intracranial vessel wall pathology in moyamoya vasculopathy. We aimed to classify adult moyamoya vasculopathy etiologies using high‐resolution MRI and to examine subtype‐specific associations between high‐resolution MRI features and ischemic infarction.
Guangsong Han, Jiachun Pan, Yuehui Hong, Xiaoyuan Fan, Ming Yao, Lixin Zhou, Yicheng Zhu, Feng Feng, Jun Ni   +8 more
wiley   +1 more source

Research on Aircraft Surface Taxi Path Planning and Conflict Detection and Resolution

Journal of Advanced Transportation, 2021
Aircraft surface taxiing conflict avoidance is mostly adopted by waiting and rerouting methods, but this method does not consider the difference in total taxiing time that may be caused by different strategies.
Ningning Zhao, Nan Li, Yu Sun, Lei Zhang
doaj   +1 more source

Research on Wiener Degradation Model and Failure Mechanism of Interconnect Solder Joints Under Random Vibration Load

IEEE Access, 2021
Electronic packaging solder joints are the key parts of mechanical fixation and electrical interconnection between electronic chips and printed circuit boards, which are prone to failure and lead to electronic device failures under the action of ...
Jiayan Dong, Yingli Long, Xiaoxuan Jiao, Yifeng Huang   +3 more
doaj   +1 more source

Flight control mechanisms of a comet

International Journal of Combinatorial Optimization Problems and Informatics, 2020
The growth of technology and the demand for the use of renewable resources has unleashed the interest of researchers to generate knowledge to obtain resources of this type. For this they have built different proposals, one of them is the generation of energy through wind resources.
Aridelci Ángeles-Meneses, José Gerardo Benítez Morales, Javier Hernández Pérez, Ocotlán Díaz-Parra, Mario Alberto Magaña-Méndez   +4 more
openaire   +2 more sources

Global Rather Than Vertical‐Selective Saccadic Abnormalities in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To test whether vertical saccades are preferentially affected in Progressive Supranuclear Palsy (PSP). Methods PSP patients (n = 24) were compared to age‐matched controls (n = 94) and two degenerative groups (Alzheimer's disease, n = 20; Lewy body disease, n = 50).
Duy Duan Nguyen, Mark Paine, Soohyun Lee, Amir Fazlollahi, Baibin (Ben) Wang, John D. O'Sullivan, Peter J. Nestor   +6 more
wiley   +1 more source

Re‐Purposing Sapropterin (Kuvan) for ACTA2‐Related Multisystemic Smooth Muscle Dysfunction Syndrome: A Translational Mechanistic and First‐In‐Human Therapeutic Report

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Multisystemic smooth muscle dysfunction syndrome (MSMDS) is an ultra‐rare, ACTA2‐related disorder characterized by severe cerebrovascular disease, aortic aneurysms, and smooth muscle dysfunction. Using molecular dynamics simulations and in silico drug screening, we identified that sapropterin dihydrochloride (Kuvan) is a candidate capable of ...
Moran Hausman‐Kedem, Noa Bielopolski, Vijai Krishnan, Shane Wald‐Altman, Shelly I Shrian, Omer Bar‐Yosef, Livia Kapusta, Claire Shamber, Patricia L. Musolino, Miguel Weil   +9 more
wiley   +1 more source

Autonomous Planning, Navigation and Control for Lightweight Unmanned Aerial Vehicles in Cluttered Environments

Guidance, Navigation and Control
This paper proposed an autonomous planning, navigation and control framework for lightweight unmanned aerial vehicles (UAVs) in obstacle-dense environments with limited computational resources.
Pengxiao Wang, Hang Su, Zhaoyu Zhang, Mengzhen Huo   +3 more
doaj   +1 more source