Results 91 to 100 of about 7,938,372 (253)
Variable velocity notch moving target indication
, 1963 The RCAF considers chaff to be one of the main threats in an air attack because of the presentation of a large number of false alarms to a PPI operator or to the automatic data transmission equipment (the AN/FST-2). Normally, MTI is not effective because
Hunt, F. R.
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Distributed Velocity Control in Cooperative Multi-Agent Moving Source Seeking
, 2023 This paper uses distributed velocity control to address the agent-based moving source-seeking problem. The source is represented by a scalar field. In cooperative multi-agent seeking, agents communicate with one another using a communication topology to ...
Mochammad Sahal (20252802) +3 more
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Electromagnetic black holes with controllable composite right/left-handed transmission lines
Scientific ReportsGiven that the Hawking radiation from celestial black holes is extremely weak and thus difficult to be practically detected, a series of analogue black holes have been constructed to observe the relevant analogue Hawking radiations in the laboratory ...
Qing Tang +3 more
doaj +1 more source
Subjective Cognitive Concerns and Cognitive Trajectories in Parkinson's Disease: Biomarker Impact
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To examine the relationship of subjective cognitive concerns (SCC) with biomarkers of Alzheimer's disease (AD), neurodegeneration, and Parkinson's disease (PD) and domain‐specific cognitive trajectories among cognitively unimpaired persons with de novo PD. Method Cognitively unimpaired participants with SCC (n = 294) and without SCC (
Francesca V. Lopez +5 more
wiley +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Biallelic FIG4 variants classically cause distinct conditions characterized by peripheral neuropathy (Charcot‐Marie‐Tooth disease type 4J) or skeletal dysplasia (Yunis‐Varón syndrome). However, central nervous system involvement is increasingly recognized. The prevalence and specific characteristics of movement disorders within FIG4‐
Andrea Gangfuß +22 more
wiley +1 more source
Unsteady separation past moving surfaces [PDF]
, 1998 Unsteady boundary-layer development over moving walls in the limit of infinite Reynolds number is investigated using both the Eulerian and Lagrangian formulations.
Degani, AT, Smith, FT, Walker, JDA
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Four‐Year Cognitive Outcomes in Multiple Sclerosis: Associations With Lesion Myelin Integrity
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objectives Cognitive impairment is prevalent in patients with multiple sclerosis (MS) but whether lesion myelin integrity influences future cognitive outcomes remains unclear. We investigated the relationship between baseline lesion myelin water fraction (MWF) and cognitive performance 4 years later.
Iliana Pliska‐Bloch +9 more
wiley +1 more source
Dynamic Modeling of a Novel Multi-Loop Multi-Body Mechanism of Face-Shovel Excavator
Chinese Journal of Mechanical EngineeringCurrently, research in multi-body dynamics predominantly focuses on symmetric parallel mechanisms with multiple branches. However, for the working mechanism (WM) of a face-shovel hydraulic excavator, an asymmetric mechanism with multiple closed loops ...
Jisong Ding, Huafeng Ding, Wenjian Yang
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Arthritis Care &Research, EarlyView.Objective Systemic sclerosis (SSc) is characterized by cardiovascular risk excess not fully explained by traditional factors. Whether the severity of microvascular damage correlates with structural subclinical atherosclerosis remains unclear. We investigated the relationship between nailfold videocapillaroscopy (NVC) abnormalities and carotid ...
Eugenio Capparelli +13 more
wiley +1 more source
Research on Heat Transfer Process of the Quick Freezing of the Fresh Unripe Maize and Freezing Time
Zhileng xuebao, 2006 In the study, fresh unripe maize ear was modeled by a two - layer coaxial infinite cylindrical shell based on different physical properties of kernels and cob. The mathematical model is built and solved by the method of improving the enthalpy manner. The
曲春民, 孙勇, 陈忠海, 冀卫兴
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