Results 121 to 130 of about 63,330 (315)

Thrust Vectoring Control for Heavy UAVs, Employing a Redundant Communication System. [PDF]

Sensors (Basel), 2023
Ale Isaac MS, Ragab AR, Luna MA, Ale Eshagh Khoeini MM, Campoy P.   +4 more
europepmc   +1 more source

Discovery and validation of a urinary extracellular vesicle protein signature for the diagnosis of renal allograft fibrosis

Interdisciplinary Medicine, EarlyView.
Discovery and validation of a urinary extracellular vesicle protein signature for the diagnosis of renal allograft fibrosis. Abstract Interstitial fibrosis is the best indicator of irreversible or ongoing renal injury after kidney transplantation and faces considerable diagnostic challenges.
Wenxuan Zhao, Yang Xu, Yuewen Wang, Shihao Jin, Wenhui Wang, Zeming Yu, Yanwen Zhang, Yuxin Zhang, Deling Kong, Bing Wang, Zhenzhou Wu, Jie Zhao, Yuebing Wang   +12 more
wiley   +1 more source

Mathematical modeling of the reverse feeding system of a turbofan with ultra-high bypass ratio

Авіаційно-космічна техніка та технологія
This study investigates a ducted propfan in reverse mode, considering the influence of air bypass from outside the duct or air leakage after the propfan impeller.
Dmytro Plakushchyu, Mykhailo Mitrakhovych   +1 more
doaj   +1 more source

The Application Value of Transvaginal Three‐Dimensional Ultrasonography in the Diagnosis of Adenomyosis of the Uterus

Journal of Clinical Ultrasound, EarlyView.
In this study, 3D‐TVS measurements of the uterine junction zone (JZ) in 120 patients showed that a JZmax threshold of ≥ 0.45 cm yielded 77% sensitivity and 89% specificity for adenomyosis diagnosis. Notably, JZ thickness varies minimally with age, demonstrating its stability and excellent diagnostic performance.
Mengyu Li, Zhen Zong, Xiaoman Wang, Hebin Zhang   +3 more
wiley   +1 more source

An experimental comparison of controllers for a vectored thrust, ducted fan engine [PDF]

, 1995
Experimental comparisons between four different control design methodologies are applied to a small vectored thrust engine. Each controller is applied to three trajectories of varying aggressiveness.
Bendotti, Pascale, Bodenheimer, Bobby, Kantner, Michael, Murray, Richard M.   +3 more
core  

Differences in Right Hepatic Duct Length Among Left‐Sided Hepatectomies: Conventional Hepatectomy Versus Extended Hepatectomy Versus Trisectionectomy

Journal of Hepato-Biliary-Pancreatic Sciences, EarlyView.
ABSTRACT Background Left‐sided hepatectomy for perihilar cholangiocarcinoma includes conventional left hepatectomy (C‐LH; H1234‐B), extended left hepatectomy (E‐LH; H12345′8′‐B‐MHV), and left trisectionectomy (LT; H123458‐B). The anatomical characteristics of the resected length of the right hepatic duct (RHD) in E‐LH remain unclear.
Kota Sugiura, Mihoko Yamada, Takashi Mizuno, Shunsuke Onoe, Nobuyuki Watanabe, Shoji Kawakatsu, Junpei Yamaguchi, Masaki Sunagawa, Taisuke Baba, Tomoki Ebata   +9 more
wiley   +1 more source

Response Surface Methodology-Driven Design Optimization for Ducted Fans

Aerospace
Due to the complexity of aerodynamic coupling between the duct and propeller, the overall design and optimization of ducted fans often require extensive experience and time.
Weijie Gong, Kaihua Fu, Hong Chen
doaj   +1 more source

Experimental Investigation of a Morphing Nacelle Ducted Fan [PDF]

The application of Circulation Control to the nacelle of a shrouded fan is proposed as a means to enhance off-design performance of the shrouded fan. Typically, a fixed geometry shroud is efficient at a single operating condition.
Kondor, Shayne A., Moore, Mark
core   +1 more source

Clinical Applications of Electrical Conductivity Imaging Using MRI

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Magnetic resonance imaging (MRI) has emerged as a noninvasive technique for probing the electrical properties of biological tissues: electrical conductivity and relative permittivity. This review focuses on the electrical conductivity and provides a comprehensive overview of applications across both low‐ and high‐frequency regimes.
Stefano Mandija, Khin Khin Tha, Nitish Katoch, Cihan Göksu, Ulrich Katscher, Rosalind Sadleir, Kyu‐Jin Jung, Jierong Luo, Ilias I. Giannakopoulos, Dong‐Hyun Kim, Karin Shmueli, Riccardo Lattanzi, Yusuf Ziya Ider, Axel Thielscher, Cornelis van den Berg   +14 more
wiley   +1 more source

NMPC-Based Trajectory Optimization and Hierarchical Control of a Ducted Fan Flying Robot with a Robotic Arm

Drones
Ducted fan flying robots with robotic arms can perform physical interaction tasks in complex environments such as indoors. However, the coupling effects between the aerial platform, the robotic arm, and physical environment pose significant challenges ...
Yibo Zhang, Bin Xu, Yushu Yu, Shouxing Tang, Wei Fan, Siqi Wang, Tao Xu   +6 more
doaj   +1 more source