Determination of the two Elements of the Orbit, from the Approximate Perihelion Distance, and Time of Arrival at the Perihelion, before found

2014 ◽  
pp. 144-153
Author(s):  
Henry Englefield
Keyword(s):  
Time Of Arrival ◽  
Perihelion Distance

TEST METHODS FOR MEASURING MINIMUM HOLDING TIMES IN CONTINUOUS EGG PASTEURIZERS1

1968 ◽  
Vol 31 (10) ◽  
pp. 310-314 ◽  
Author(s):  
Vern F. Kaufman ◽  
George W. Putnam ◽  
Kosuke Ijichi
Keyword(s):  
Temperature Change ◽  
Test Methods ◽  
Positive Sample ◽  
Normal Operation ◽  
Time Of Arrival ◽  
Leak Detector ◽  
Immersion Freezing ◽  
Time Required ◽  
Flow Stream

Two test methods that may be used in commercial egg pasteurizers while in normal operation are described. Either may be used without damage to the product and with almost no disturbance to regular plant procedures. These tests have been needed to help determine the degree of compliance with pasteurization requirements. The first method requires injection of a cold shot into the flow stream entering the holding tube and determination of the time required for the first of this material to arrive at the outlet of the holding tube. The cold shot is introduced into the line by use of a by-pass loop. The arrival of the cold shot at the end of the holding tube is detected by use of a sensitive recorder to indicate the temperature change. The second method is based on the use of a fluorocarbon compound as a tracer. The compound is dissolved in yolk, which is injected into the flow stream entering the holding tube. Samples taken at the end of the holding tube are checked with a fluorocarbon leak detector of the type used in the refrigeration industry. The first positive sample is taken as the time of arrival of the injected tracer. Fluorocarbon compound 12 which is permitted in the immersion freezing of foods may be used and has no effects on the functional properties of the products.

scholarly journals Method for the diagnosis of high-voltage dielectric elements during operation based on dynamic registration of electromagnetic radiation

2020 ◽  
Vol 216 ◽  
pp. 01061
Author(s):  
Dmitry Ivanov ◽  
Tatyana Galieva ◽  
Marat Sadykov ◽  
Alexander Golenischev-Kutuzov ◽  
Anatoly Naumov
Keyword(s):  
High Voltage ◽  
Residual Life ◽  
Technical Condition ◽  
Time Of Arrival ◽  
Frequency Method ◽  
Diagnostic Parameters ◽  
Reliable Assessment ◽  
The Difference ◽  
The Moment

Complex remote monitoring and the developed non-contact diagnostic device (NDD) allow monitoring the technical condition and revealing the residual life of high-voltage dielectric elements. It is based on non-contact remote periodic measurement of a set of diagnostic parameters (characteristics of electrical discharges emitted by insulators during operation) necessary for a reliable assessment of the operating state of high-voltage dielectric equipment at the moment of operation and determination of its residual life. NDDs are installed on each phase conductor and used to measure diagnostic parameters, followed by computer processing of the accumulated information signals. An analysis of the set of necessary diagnostic parameters makes it possible to form a conclusion on the degree of performance of dielectric elements. The paper considers a method for detecting defective high-voltage insulators using the developed non-contact diagnostic devices by the radio frequency method and assessing the difference in time of arrival of a partial discharge signal.

scholarly journals Immediate outcome and risk factors determining the outcome of status epilepticus in children attending tertiary care centre

2017 ◽  
Vol 4 (4) ◽  
pp. 1289
Author(s):  
Murali Thandavarayan ◽  
Sureshkumar Ramaswamy ◽  
Priyadarsini Bose ◽  
Sivaraman Thirumalaikumarasamy
Keyword(s):  
Risk Factors ◽  
Status Epilepticus ◽  
Tertiary Care ◽  
Medical Emergency ◽  
Time Of Arrival ◽  
Care Hospital ◽  
Tertiary Care Centre ◽  
College Hospital ◽  
Medical College

Background: Status epilepticus (SE) is a paediatric and neurological medical emergency, continuous seizure lasting more than 30 min, or two or more seizures without full recovery of consciousness between any of them. Determination of immediate outcome of SE in children in a tertiary care hospital and to identify the risk factors influencing the outcome was the objectives of the present study.Methods: A study was conducted in Dept of Pediatrics, Tirunelveli Medical College Hospital among the children from 1 month to12 years of age, who had admitted for SE in hospital’s pediatric causality from October 2009 to October 2010 were selected for the study.Results: Out of 92 patients, total 87 patients completed the study and out of those 74 have recovered and 13 have died. The risk factors significantly affecting the outcome were hypoxia at the time of arrival, decompensated shock, respiratory failure requiring intubation and acidosis.Conclusions: Proper prehospital therapy, early referral, proper care while transporting, anticipitating risk factors involved, and protocol based approach uniformly at all hospital can reduce the mortality due to status epilepticus in children. 

An innovative method for automatic determination of time of arrival for Lamb waves excited by impact events

2017 ◽  
Vol 26 (5) ◽  
pp. 055013 ◽  
Author(s):  
Junxiao Zhu ◽  
Seyed Mohammad Parvasi ◽  
Siu Chun Michael Ho ◽  
Devendra Patil ◽  
Maochen Ge ◽  
...  
Keyword(s):  
Lamb Waves ◽  
Time Of Arrival ◽  
Automatic Determination ◽  
Innovative Method ◽  
Impact Events

ANALYSIS AND PROCESSING OF RECEIVED SIGNALS IN BOREHOLES

2001 ◽  
Vol 09 (02) ◽  
pp. 447-459 ◽  
Author(s):  
JENS M. HOVEM ◽  
HEFENG DONG ◽  
ODDVAR LOTSBERG
Keyword(s):  
Geological Structure ◽  
P Wave ◽  
Resonance Structure ◽  
Time Of Arrival ◽  
Reflected Waves ◽  
Sensor Signals ◽  
The Individual ◽  
Spatial And Temporal Characteristics ◽  
Plane P Wave

This study is a part of a project to develop a borehole sonar for acoustic imaging of the geological structure of the rock formation near to a deviated or horizontal borehole performed while drilling. The purpose of the sonar is to provide a direct measure of the distance and the direction to bed boundaries parallel to the borehole. This paper gives a theoretical analysis of the effect of the borehole and the drillstring on the received response on sensors positioned on the drillstring and proposes a method for processing the received signal to enable the determination of the direction of an incoming plane wave and time of arrival. In the first part of this paper, the response at any position in a fluid filled borehole is determined for an incoming plane P-wave. It is shown that the response is quite complicated and consists of several vibrating modes with resonance structure. Secondly, the paper presents how the received signals can be decomposed and the individual modes can be resolved by utilizing the orthogonal properties of the mode functions. The individual mode functions are resolved by performing a spatial Fourier transform of the sensor signals. A requirement is that the sensors are uniformly distributed around the circumference of the drillstring and that the number of sensors is at least two times the number of significant modes. It is demonstrated that the spatial and temporal characteristics of the resolved modes can then be exploited to determine the time of arrival and the angle of direction of the incoming reflected waves.

scholarly journals Position determination of acoustic source using higher-order spectral analysis for time of arrival estimation

2019 ◽  
Vol 69 (3) ◽  
pp. 41-48
Author(s):  
Ivan Pokrajac ◽  
Miodrag Vračar ◽  
Tamara Šević ◽  
Vasilija Joksimović
Keyword(s):  
Spectral Analysis ◽  
Higher Order ◽  
Time Of Arrival ◽  
Acoustic Source ◽  
Position Determination

scholarly journals Influence of Frequency and Distance on Acoustic Emission Velocity Propagating in Various Dielectrics

2020 ◽  
Vol 10 (9) ◽  
pp. 3305
Author(s):  
Daria Wotzka
Keyword(s):  
Acoustic Emission ◽  
Nonlinear Regression ◽  
Modulation Frequency ◽  
Partial Discharges ◽  
Time Of Arrival ◽  
Dielectric Liquids ◽  
Signal Parameters ◽  
Two Factors ◽  
Ae Signal

The results obtained for the measurements of acoustic emission (AE) signal parameters emitted in three dielectric liquids are presented in this paper. In particular, the velocity of AE wave was calculated based on the time of arrival of the AE signal. A frequency modulated signal was generated by a piezoelectric transducer and measured at various distances by a hydrophone. The changes in velocity values at particular distances and for different frequencies were investigated. The analyses include the determination of the dependency of the velocity values from the distance between the communicating devices. A nonlinear regression model was calculated, and the differences between AE velocities propagating in the considered dielectrics were determined. Similarly, the influence of modulation frequency on the AE velocity was determined using nonlinear regression. Based on the calculation data, it can clearly be stated that the velocity of AE wave depends significantly on the frequency and distance at which it is registered. These two factors may have an important influence on the localization of partial discharges (PD) occurring in these types of dielectric liquids.

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