Precision Seconds Pulse Timing System

1955 ◽  
Vol 26 (12) ◽  
pp. 1132-1133 ◽  
Author(s):  
R. Dean Taylor ◽  
John E. Kilpatrick
Keyword(s):  
Timing System ◽  
Pulse Timing

scholarly journals Scintillation Observations of Strong Northern Pulsars

2001 ◽  
Vol 182 ◽  
pp. 57-60
Author(s):  
Na Wang ◽  
R.N. Manchester ◽  
Aili Yusup ◽  
Xinji Wu ◽  
Jin Zhang ◽  
...  
Keyword(s):  
Radio Emission ◽  
Interstellar Medium ◽  
Astronomical Observatory ◽  
Pulsar Radio ◽  
Pulsar Timing ◽  
Timing System ◽  
Dynamic Spectra ◽  
Pulse Timing ◽  
Pulsar Radio Emission

AbstractScintillation of pulsar radio emission provides information about the interstellar medium along the path to the pulsar and the velocities of pulsars. It also affects the precision of pulse timing observations. Using a pulsar timing system developed at the Urumqi Astronomical Observatory 25 m telescope, we observed diffractive scintillation dynamic spectra for several strong northern pulsars. This paper introduces the observing system and discusses the observational results.

Testing Pulse Timing Devices Using Arbitrary Function Generators

2020 ◽  
Vol 54 (5) ◽  
pp. 466-473
Author(s):  
V. A. Bespal’ko ◽  
I. Burak ◽  
A. S. Rybakov
Keyword(s):  
Arbitrary Function ◽  
Pulse Timing ◽  
Function Generators

Circadian rhythms, sleep, and anti-cancer treatments

2018 ◽  
Author(s):  
Pasquale F. Innominato ◽  
David Spiegel
Keyword(s):  
Quality Of Life ◽  
Circadian Rhythms ◽  
Biological Functions ◽  
Cancer Treatments ◽  
Anti Cancer ◽  
Timing System ◽  
Physical Wellbeing ◽  
Circadian Timing System ◽  
Chemotherapy Agents

The circadian timing system temporally regulates biological functions relevant for psycho-physical wellbeing, spanning all the systems related to health. Hence, disruption of circadian rhythms, along with sleep cycles, is associated with the development of several diseases, including cancer. Moreover, altered circadian and sleep functions negatively impact on cancer patients’ quality of life and survival, above and beyond known determinants of outcome. This alteration can occur as a consequence of cancer, but also of anti-cancer treatments. Indeed, circadian rhythms govern also the ability of detoxifying chemotherapy agents across the 24 hours. Hence, adapting chemotherapy delivery to the molecular oscillations in relevant drug pathways can decrease toxicity to healthy cells, while increasing the number of cancer cells killing. This chronomodulated chemotherapy approach, together with the maintenance of proper circadian function throughtout the whole disease challenge, would finally result in safer and more active anticancer treatments, and in patients experiencing better quality and quantity of life.

scholarly journals Speeds of Sound in Methanol at Temperatures from 233.33 to 353.21 K at Pressures up to 20 MPa

2021 ◽  
Vol 42 (5) ◽  
Author(s):  
Christian W. Scholz ◽  
Roland Span
Keyword(s):  
Equation Of State ◽  
Path Length ◽  
Speeds Of Sound ◽  
Pulse Timing ◽  
Combined Uncertainty ◽  
Pulse Echo

AbstractWe report experimental speeds of sound in methanol. Measurements were conducted at temperatures from 233 to 353 K with pressures up to 20 MPa using the double-path length pulse-echo technique. The relative expanded combined uncertainty (k = 2) in measurement was estimated to vary from 0.012 to 0.014%, considering contributions from temperature, pressure, path length calibration, pulse timing, and purity of the sample. Experimental speeds of sound gained in the scope of this work were compared with the equation of state by de Reuck and Craven, as well as with further data from literature.

Effects of pulse timing parameters on bulk Erbium laser operation in the eyesafe region

2008 ◽  
Author(s):  
E. Georgiou ◽  
N. Lazarides ◽  
O. Musset ◽  
J. P. Boquillon
Keyword(s):  
Laser Operation ◽  
Erbium Laser ◽  
Pulse Timing
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