scholarly journals Evaluation of the noise disturbance and noise limit from a riding horse shooting competition

2016 ◽  
Author(s):  
Juan Montoya
Keyword(s):  
Noise Disturbance ◽  
Noise Limit

EFFECT OF CELLULAR MEMBRANE RESISTIVITY INHOMOGENEITY ON THE THERMAL NOISE-LIMIT

2015 ◽  
Vol 11 (3) ◽  
pp. 3171-3183
Author(s):  
Gyula Vincze
Keyword(s):  
Field Strength ◽  
Thermal Noise ◽  
Cellular Membrane ◽  
Thermal Limit ◽  
Low Frequencies ◽  
Membrane Resistivity ◽  
Noise Limit ◽  
The Asymmetry ◽  
Characteristic Field

Our objective is to generalize the Weaver-Astumian (WA) and Kaune (KA) models of thermal noise limit to the case ofcellular membrane resistivity asymmetry. The asymmetry of resistivity causes different effects in the two models. In the KAmodel, asymmetry decreases the characteristic field strength of the thermal limit over and increases it below the breakingfrequency (10  m), while asymmetry decreases the spectral field strength of the thermal noise limit at all frequencies.We show that asymmetry does not change the character of the models, showing the absence of thermal noise limit at highand low frequencies in WA and KA models, respectively.

scholarly journals Surpassing the shot-noise limit by homodyne-mediated feedback

2016 ◽  
Vol 41 (17) ◽  
pp. 3932 ◽  
Author(s):  
Guofeng Zhang ◽  
Hanjie Zhu
Keyword(s):  
Shot Noise ◽  
Noise Limit ◽  
Shot Noise Limit

scholarly journals Overcoming detection loss and noise in squeezing-based optical sensing

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Gaetano Frascella ◽  
Sascha Agne ◽  
Farid Ya. Khalili ◽  
Maria V. Chekhova
Keyword(s):  
Shot Noise ◽  
Optical Sensing ◽  
Detection Efficiency ◽  
Signal To Noise Ratio ◽  
Real Life ◽  
Squeezed States ◽  
Squeezed Light ◽  
Noise Limit ◽  
Imaging And Spectroscopy ◽  
Shot Noise Limit

AbstractAmong the known resources of quantum metrology, one of the most practical and efficient is squeezing. Squeezed states of atoms and light improve the sensing of the phase, magnetic field, polarization, mechanical displacement. They promise to considerably increase signal-to-noise ratio in imaging and spectroscopy, and are already used in real-life gravitational-wave detectors. But despite being more robust than other states, they are still very fragile, which narrows the scope of their application. In particular, squeezed states are useless in measurements where the detection is inefficient or the noise is high. Here, we experimentally demonstrate a remedy against loss and noise: strong noiseless amplification before detection. This way, we achieve loss-tolerant operation of an interferometer fed with squeezed and coherent light. With only 50% detection efficiency and with noise exceeding the level of squeezed light more than 50 times, we overcome the shot-noise limit by 6 dB. Sub-shot-noise phase sensitivity survives up to 87% loss. Application of this technique to other types of optical sensing and imaging promises a full use of quantum resources in these fields.

scholarly journals Experimental test of entropic noise-disturbance uncertainty relations for three-outcome qubit measurements

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Stephan Sponar ◽  
Armin Danner ◽  
Vito Pecile ◽  
Nico Einsidler ◽  
Bülent Demirel ◽  
...  
Keyword(s):  
Experimental Test ◽  
Uncertainty Relations ◽  
Noise Disturbance

scholarly journals A cross-sectional survey of stigma towards people with a mental illness in the general public. The role of employment, domestic noise disturbance and age

2021 ◽  
Author(s):  
S. C. C. Oudejans ◽  
M. E. Spits ◽  
J. van Weeghel
Keyword(s):  
Depressive Disorder ◽  
Social Services ◽  
Psychotic Disorder ◽  
Social Distance ◽  
Community Integration ◽  
Mental Illnesses ◽  
Public Stigma ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Noise Disturbance

Abstract Introduction Stigmatization impedes the social integration of persons recovering from mental illnesses. Little is known about characteristics of the stigmatized person that lessen or aggravate public stigma. Purpose This study investigates which characteristics of persons with mental illnesses (i.e. with a depression or a psychotic disorder) might increase or decrease the likelihood of public stigma. Methods Over 2,000 adults read one of sixteen vignettes describing a person with a depressive disorder or a psychotic disorder and answered a set of items measuring social distance. Results The person who was employed (vs. unemployed), or whose neighbors did not experience domestic noise disturbance (vs. disturbance) elicited significantly less social distance. Also persons with a depressive disorder elicited less social distance, vs. persons with a psychotic disorder. Conclusion Employment and good housing circumstances may destigmatize persons coping with mental illnesses. Mental health and social services should encourage paid employment, quality housing and other paths to community integration.

scholarly journals Nano-Kelvin Thermometry and Temperature Control: Beyond the Thermal Noise Limit

2014 ◽  
Vol 112 (16) ◽  
Author(s):  
Wenle Weng ◽  
James D. Anstie ◽  
Thomas M. Stace ◽  
Geoff Campbell ◽  
Fred N. Baynes ◽  
...  
Keyword(s):  
Temperature Control ◽  
Thermal Noise ◽  
Noise Limit

Optimization of Detectability in Laser-Based Polarimeters

1989 ◽  
Vol 43 (8) ◽  
pp. 1337-1341 ◽  
Author(s):  
Xiaobing Xi ◽  
Edward S. Yeung
Keyword(s):  
Shot Noise ◽  
Experimental Verification ◽  
High Frequency ◽  
Ohmic Heating ◽  
Unit Length ◽  
Power Input ◽  
Upper Limit ◽  
High Modulation ◽  
Noise Limit ◽  
Shot Noise Limit

To optimize the performance of a laser-based polarimeter, a mathematical simulation was performed. High-modulation currents allow a corresponding increase in signal. However, the effect of ohmic heating puts an upper limit on the power input to the solenoid. With this constraint, one can systematically choose the wire diameter and the number of turns per unit length. An experimental verification of the optimized parameters provided performance approaching the shot-noise limit. By using higher modulation currents, one can operate at 1 kHz to achieve detectability in the microdegree range, without the complications of high-frequency (100 kHz) modulation.

scholarly journals Investigating the Intrinsic Noise Limit of Dayem Bridge NanoSQUIDs

2014 ◽  
pp. 1-1
Author(s):  
Trupti Patel ◽  
Bo Li ◽  
John Gallop ◽  
David Cox ◽  
Karen Kirkby ◽  
...  
Keyword(s):  
Intrinsic Noise ◽  
Noise Limit
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