Barometric effect in low level counting

1978 ◽  
Vol 56 (1) ◽  
pp. 45-46 ◽  
Author(s):  
J. Planinić
Keyword(s):  
Proportional Counter ◽  
Regression Line ◽  
Barometric Pressure ◽  
Low Level ◽  
Line Equation ◽  
Barometric Effect ◽  
Barometric Coefficient

The correlation between the proportional counter and the barometric pressure was examined. The barometric coefficient was estimated by means of the regression line equation and the measured background was corrected according to the standard barometric pressure.

scholarly journals The Marketing Mix Affect on the Consumer Buying Decision (Case Study of Sausage Products at PT. Aroma Denpasar)

2017 ◽  
Vol 1 (2) ◽  
pp. 65
Author(s):  
I Made Jaminyasa ◽  
I Made Pulawan ◽  
Anak Agung Media Martadiani ◽  
I Made Suniastha Amerta
Keyword(s):  
Linear Regression ◽  
Product Quality ◽  
Regression Coefficient ◽  
Regression Line ◽  
Positive Influence ◽  
Marketing Mix ◽  
T Test ◽  
Rejection Region ◽  
Line Equation

The more intense competition within the similar business as well as happened in the business of making sausages, especially in Denpasar city. PT. Aroma was one of the companies in Denpasar that produces sausages, corned beef, and nuggets. In an effort to attract consumers to buy sausages, companies pay attention to product quality, price, and promotion. The attitude of each consumer varies before buying and in buying products. Consumer considerations in buying the products that need to be considered by marketers, so that products that are marketed can be accepted and would be bought by the consumers. The linear regression line equation: Y = 0.1920 + 0.2145 X1 + 0.2592 X2 + 0.3828 X3 explains that there was a simultaneous positive influence between product quality, price, and promotion on the buying decision of sausage. The result of t-test of regression coefficient obtained t1-count was 3,3628, t2-count was 3,9879 and t3-count was 6,2641 bigger than t-table equal to 1,980 was in rejection region Ho, hence Ho rejected or Hi accepted. It meant it was true, that there was a positive influence simultaneously between the marketing mix and the consumer buying decision.

Quick estimation for pollution load contributions of aromatic organics in wastewater from pulp and paper industry

2018 ◽  
Vol 33 (3) ◽  
pp. 568-572 ◽  
Author(s):  
Zhimin Wei ◽  
Youming Li ◽  
Yi Hou
Keyword(s):  
Paper Industry ◽  
Regression Line ◽  
Pulp And Paper Industry ◽  
Organic Pollution ◽  
Pulp And Paper ◽  
Accurate Estimation ◽  
Molecular Formula ◽  
Pollution Load ◽  
Contamination Control ◽  
Line Equation

Abstract Quick and accurate estimation of organic pollution load such as COD in wastewater is very important for the implementation of cleaner production, especially in pulp and paper industry. In order to find the contribution of pollution load of aromatic organics, several non-aromatic and aromatic organics were studied. Results indicated that there was a good linear correlation between theoretical COD (ThOD) and composite parameters of ln(C + H)/O, which is calculated from the amount of C, H and O atoms in the molecular formula. From the regression line equation of ThOD vs ln(C + H)/O, it is found that the gradient of the aromatic ring regression line is lower than that of other acyclic compounds, which may be ascribed to aromatics which were hard to oxidize in measurements of COD. An actual COD well matched to the ThOD estimated for common aromatics with phenolic and non-phenolic structures often appeared for wastewater from pulp and paper industry, with a relative error rate of ± 5 %. Ideal recovery rates of these, 95 % to 105 %, were achieved. This work provides an effective method for quick and accurate estimation for pollution load contributions, which is important for contamination control and progress in industry.

scholarly journals UCLA Radiocarbon Dates III

Radiocarbon ◽  
1964 ◽  
Vol 6 ◽  
pp. 318-339 ◽  
Author(s):  
G. J. Fergusson ◽  
W. F. Libby
Keyword(s):  
Oxalic Acid ◽  
Barometric Pressure ◽  
Radiocarbon Dates ◽  
Counting Procedure ◽  
Carbonate Material ◽  
Barometric Effect ◽  
Energy Channels ◽  
Storey Building ◽  
Made In ◽  
Modern Standard

The measurements reported in this list have been made in the Isotope Laboratory of the Institute of Geophysics during 1963 and are a continuation of the work reported previously (UCLA I and UCLA II). The same counting procedure—CO2 proportional counting at 1 atm pressure in a 7.5 L counter with three energy channels—continues in use. No barometric effect on the background has been observed, presumably because of the combination of fairly constant barometric pressure in this area and the location of the equipment on the ground floor of a five storey building. Dates continue to be calculated on the basis of a C14 half life of 5568 yr according to the decision of the 1962 Cambridge Conference (Godwin, 1962). The modern standard has been taken as 95% of NBS oxalic acid for all organic samples, while for carbonate material such as shells and tufa, dates have been computed on the basis of estimates of the corresponding contemporary C14 activity (Broecker and Walton, 1959) as indicated in the description accompanying the results.

scholarly journals University of New South Wales Radiocarbon Dates I

Radiocarbon ◽  
1965 ◽  
Vol 7 ◽  
pp. 162-165 ◽  
Author(s):  
J. H. Green ◽  
Josephine Harris ◽  
J. W. G. Neuhaus ◽  
D. K. B. Sewell ◽  
Maureen Watson
Keyword(s):  
Stainless Steel ◽  
Proportional Counter ◽  
New South ◽  
Barometric Pressure ◽  
Filling Pressure ◽  
Active Volume ◽  
Neutron Shielding ◽  
Radiocarbon Dates ◽  
South Wales ◽  
Large Fluctuations

The dates listed were obtained using a stainless steel counter with an active volume of 1.3 L and a background of 16.3 cpm at an absolute filling pressure of 152 cm Hg. The present proportional counter in use is made of O.F.H.C. copper, and has an active volume of 1.25 L and a background of 5.2 cpm, at an absolute counter filling pressure of 152 cm Hg. CO2 is used as the counting gas and the counter is filled to a pressure of between 76 cm and 228 cm of Hg (depending on the sample size) at a temperature of 23 ± 0.3°C. The counter is shielded, starting from the top, by 5 cm of lead and 26 cm of iron, and is surrounded by an array of 22 Geiger tubes, and then finally by 2.5 cm of mercury. The thickness of the sides and base is greater than 10 cm of iron. As yet no neutron shielding is used and this probably accounts for the large fluctuations of background with barometric pressure (0.32 cpm per 1 cm Hg change in the pressure).

Cosmic Ray Measurements between Australia and Japan

1949 ◽  
Vol 2 (4) ◽  
pp. 493
Author(s):  
PG Law ◽  
CD McKenzie ◽  
HD Rathgeber
Keyword(s):  
Standard Deviation ◽  
Temperature Effects ◽  
Cosmic Ray ◽  
Barometric Pressure ◽  
Temporary Increase ◽  
Wide Angle ◽  
Latitude Effect ◽  
The Difference ◽  
Barometric Effect ◽  
Diurnal Period

Cosmic ray results obtained on a journey to and fro between Australia and Japan are described. The apparatus was that used previously on the H.M.A.S. Wyatt Earp(l), but since modified, and extended to record showers. A latitude effect of 20 per cent. was found for rays of vertical incidence. The difference between electron and meson components did not exceed the statistical errors of 2 per cent. For wide angle coincidence telescope measurements the latitude effect reduces to 13 per cent. Further it has been found that a latitude effect of some 10 per cent. exists for extensive showers of an average spread of 1 metre. An observed latitude effect of penetrating extensive showers falls, however, within the standard deviation of the measurements. The above results were not corrected for barometric and temperature effects nor for variations in height of the meson-producing layer. Evidence is presented of the existence of a semi-diurnal variation at the equator and at Kure of opposite phase to the barometric pressure variations and of about twice the coefficient of the normal barometric effect. The maximum of the diurnal period occurs at Kure at 2 hours local time and at the equator at 19 hours. A temporary increase of between 2 and 3 per cent. in cosmic rag intensity during the period July 29-31, 1948, is noted.

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