Results 41 to 50 of about 162,243 (282)

Sample-efficient estimation of nonlinear quantum state functions

Communications Physics
Estimating nonlinear functions of quantum states is essential for quantum information processing tasks such as entropy quantification, fidelity estimation, and entanglement spectroscopy.
Hongshun Yao, Yingjian Liu, Tengxiang Lin, Xin Wang   +3 more
doaj   +1 more source

The interplay between geometry and numbers of blade in ducted propeller systems

Aviation
This study designs and optimizes a ducted propeller (DP) via graphical and numerical methods. Ducted propellers with a thrust-to-omega ratio ranging between 0.12 and 0.20 and blade optimizations at the design point were obtained. The geometric selection
Muhammad Dzulfikar, Helmy Purwanto, Muhammad Abdul Wahid, Prima Adhi Yudhistira   +3 more
doaj   +1 more source

Transient Hydrodynamic Characteristics of a High-Speed Axial Flow Water-Jet Pump during Variable Speed Process

Journal of Marine Science and Engineering, 2023
To investigate the transient characteristics of high-speed axial flow water-jet pumps during start-up and emergency acceleration as well as to analyze how different accelerations affect the performance of internal flow, the k–ω turbulence model of the ...
Rongsheng Zhu, Wenhao Shi, Gongchang Gan, Huairui Li, Dawei Yang, Yuchen Duan, Qiang Fu   +6 more
doaj   +1 more source

PANoptosis in the pathogenesis of myelodysplastic syndromes

Molecular Oncology, EarlyView.
PANoptosis, a combination of three types of programmed cell death, is mediated by a large protein complex called a PANoptosome. In healthy bone marrow hematopoietic cells, PANoptosis is restricted by inhibitory signaling. In MDS, bone marrow cells become sensitive to the PANoptotic stimuli due to the aberrant inactivation of inhibitory signaling or ...
Rohit Thalla, Jyoti Lamichhane, Cameron Lewis, Peter Breslin, Jiwang Zhang   +4 more
wiley   +1 more source

Structure, optimality, and symmetry in shadow unitary inversion

Communications Physics
Reversing unknown quantum dynamics is vital for quantum control and learning, yet full unitary inversion requires a resource-intensive O(d 2) queries. Because many applications only require the reversed evolution for a given observable, a critical gap ...
Guocheng Zhen, Yu-Ao Chen, Mingrui Jing, Jingu Xie, Xin Wang, Ranyiliu Chen   +5 more
doaj   +1 more source

Experimental study of the characteristics of a device for measuring thrust in continuous and pulse operating modes of rocket engine

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
The results of experimental studies on the creation of a force measuring device for measuring thrust during firing tests of rocket engines in continuous and pulse modes are presented.
A. V. Taratorin, L. Yu. Yashnov
doaj   +1 more source

Structural Design and Numerical Analysis of Hoisting Device of Test Bed for Aircraft Engine

Applied Mechanics, 2023
In this work, a test bed and stand structure were designed for the thrust test of an aircraft. The engine test rig consists of a thrust stand, test bed, transport system, and hoisting device. In this study, structural design and analysis of the stand and
Hyunbum Park
doaj   +1 more source

Somatostatin receptor 4 (SSTR4) is a tumor suppressor in cutaneous and head & neck squamous cell carcinomas

Molecular Oncology, EarlyView.
This study identifies somatostatin receptor 4 (Sstr4) as a critical tumor suppressor against skin and head/neck cancers (HNSCC, cSCC, and BCC). The loss of Sstr4 removes a check on cell growth, causing hyperactivation of the MAPK‐ERK signaling pathway (↑).
Ali Taqvi, Tuan Khang Huynh, Adway Kadam, Zahra Kardan, Yue Yan, Amina Jamal Laham, Sampath Kumar Loganathan   +6 more
wiley   +1 more source

Rethinking solvent regeneration pathways for maritime carbon capture

Nature Communications
Maritime transport is difficult to decarbonize, and onboard carbon capture has emerged as a promising option. However, adapting land-based capture systems may not suit the space, energy, and weight constraints of ships. Here we show that shifting solvent
Zhenrong Shi, Xiang Cao, Yongxin Hu, Teng Zhou   +3 more
doaj   +1 more source

The Associations Between the Swimming Speed, Anthropometrics, Kinematics, and Kinetics in the Butterfly Stroke

Bioengineering
There is scarce information about what characterizes the swimming speed in the butterfly stroke and the role of thrust in its characterization and prediction.
Mafalda P. Pinto, Henrique P. Neiva, Tatiana Sampaio, João P. Oliveira, Daniel A. Marinho, Tiago M. Barbosa, Jorge E. Morais   +6 more
doaj   +1 more source