Role of angular position of the seat in control of posture in response to external perturbation

2021 ◽  
Author(s):  
Adeolu Ademiluyi ◽  
Huaqing Liang ◽  
Alexander S. Aruin
Keyword(s):  
Angular Position ◽  
External Perturbation

scholarly journals Gear Tooth Failure Detection by the Resonance Demodulation Technique and the Instantaneous Power Spectrum Method – A Comparative Study

2011 ◽  
Vol 18 (3) ◽  
pp. 503-523 ◽  
Author(s):  
Ahmad Ghasemloonia ◽  
Siamak Esmaeel Zadeh Khadem
Keyword(s):  
Power Spectrum ◽  
Gear Tooth ◽  
Angular Position ◽  
Failure Detection ◽  
Diagnostic Methods ◽  
Time Averaging ◽  
Instantaneous Power ◽  
Gearbox Vibration ◽  
Power Spectrum Method

The role of gears in industry for speed and torque variation purposes is obvious. The gearbox diagnostic methods have been improved quickly in recent years. In this paper, two of the newest methods, the resonance demodulation technique (R.D), and the instantaneous power spectrum technique (IPS) are applied to gearbox vibration signals and their capabilities in fault detection are compared. Yet, the important role of time averaging should not be dispensed with, as it is the primary step for both techniques. In the present study, the mathematical method of these techniques, according to the mathematical vibration model of gears, is introduced, these techniques are applied to the test rig data, and finally the results of both methods are compared. The results indicate that in each method, the location of fault can be estimated and it is located in the same angular position in both methods. The IPS method is applicable to severe faults, whereas the resonance demodulation technique is a simple tool to recognize the fault at each severity and at the early stages of fault generation.

scholarly journals THE ROLE OF ENERGY–MOMENTUM CONSERVATION IN EMISSION OF CHERENKOV GLUONS

2008 ◽  
Vol 23 (12) ◽  
pp. 863-867
Author(s):  
I. M. DREMIN
Keyword(s):  
Refractive Index ◽  
Cherenkov Radiation ◽  
Angular Position ◽  
Emission Angle ◽  
Momentum Conservation ◽  
Upper Limit ◽  
Index Value ◽  
Energy Momentum Conservation

The famous formula for the emission angle of Cherenkov radiation should be modified when applied to hadronic reactions because of recoil effects and the color nature of the participants. They impose an upper limit on the energy of the gluon emitted at a given angle. Also, it leads to essential corrections to the nuclear refractive index value as determined from the angular position of Cherenkov rings.

scholarly journals What is the functional role of delay-related alpha oscillations during working memory?

2021 ◽  
Author(s):  
Michael J. Wolff ◽  
Elkan G. Akyurek ◽  
Mark G. Stokes
Keyword(s):  
Working Memory ◽  
Secondary Analysis ◽  
Low Frequency ◽  
External Perturbation ◽  
Oscillatory Activity ◽  
Published Data ◽  
Storage Mechanism ◽  
Eeg Data ◽  
Term Storage

“Activity-silent” working memory (WM) has been proposed as an energy-efficient short-term storage mechanism that does not require persistent spiking. Previously we developed a novel experimental approach to test its key predictions and showed that an external perturbation results in a subtle but reliable readout of the information in WM, even for unattended memories that otherwise do not exhibit persistent neural activity during maintenance. More recently, there has been intense interest in what differentiates attended and unattended items in WM, with diverse suggestions ranging from storage in different brain areas, reversed neural codes or that both are stored in low-frequency oscillatory activity. Here we specifically consider this latter suggestions, as proposed by Barbosa et al. based on their secondary analysis of our freely available EEG data. We are pleased that our previously published data have contributed to new and potentially important findings, but we also note that this oscillatory correlate raises further questions, and does not necessarily disqualify activity-silent models of WM.

Role of dactinomycin in the improved survival of children with Wilms' tumor

JAMA ◽  
1966 ◽  
Vol 195 (12) ◽  
pp. 1005-1009 ◽  
Author(s):  
D. J. Fernbach
Keyword(s):  
Wilms Tumor

Role of the allergist in diagnosis and management of patients with uveitis

JAMA ◽  
1966 ◽  
Vol 195 (3) ◽  
pp. 167-172 ◽  
Author(s):  
T. E. Van Metre
Keyword(s):  
Diagnosis And Management

The power of norms to sway fused group members

2018 ◽  
Vol 41 ◽  
Author(s):  
Winnifred R. Louis ◽  
Craig McGarty ◽  
Emma F. Thomas ◽  
Catherine E. Amiot ◽  
Fathali M. Moghaddam
Keyword(s):  
Evolutionary Anthropology ◽  
Normative Systems ◽  
Violent Extremism ◽  
Identity Fusion ◽  
Group Members

AbstractWhitehouse adapts insights from evolutionary anthropology to interpret extreme self-sacrifice through the concept of identity fusion. The model neglects the role of normative systems in shaping behaviors, especially in relation to violent extremism. In peaceful groups, increasing fusion will actually decrease extremism. Groups collectively appraise threats and opportunities, actively debate action options, and rarely choose violence toward self or others.

Elaborating the role of reflection and individual differences in the study of folk-economic beliefs

2018 ◽  
Vol 41 ◽  
Author(s):  
Kevin Arceneaux
Keyword(s):  
Decision Making ◽  
Individual Differences ◽  
Cognitive Processes ◽  
Evolutionary History ◽  
Behavioral Responses ◽  
History Of ◽  
Economic Beliefs

AbstractIntuitions guide decision-making, and looking to the evolutionary history of humans illuminates why some behavioral responses are more intuitive than others. Yet a place remains for cognitive processes to second-guess intuitive responses – that is, to be reflective – and individual differences abound in automatic, intuitive processing as well.

The role of affect in feelings of obligation

2020 ◽  
Vol 43 ◽  
Author(s):  
Stefen Beeler-Duden ◽  
Meltem Yucel ◽  
Amrisha Vaish
Keyword(s):  
Positive Emotions ◽  
The Creation ◽  
Sense Of Obligation

Abstract Tomasello offers a compelling account of the emergence of humans’ sense of obligation. We suggest that more needs to be said about the role of affect in the creation of obligations. We also argue that positive emotions such as gratitude evolved to encourage individuals to fulfill cooperative obligations without the negative quality that Tomasello proposes is inherent in obligations.

Refining our understanding of the “elephant in the room”

2020 ◽  
Vol 43 ◽  
Author(s):  
Andrew Whiten
Keyword(s):  
Social Cognition ◽  
Cultural Evolution ◽  
Cognitive Abilities ◽  
Critical Factors ◽  
Technological Culture

Abstract The authors do the field of cultural evolution a service by exploring the role of non-social cognition in human cumulative technological culture, truly neglected in comparison with socio-cognitive abilities frequently assumed to be the primary drivers. Some specifics of their delineation of the critical factors are problematic, however. I highlight recent chimpanzee–human comparative findings that should help refine such analyses.

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