State of Water in Supersaturated Nitrate Aerosols Disclosed by the Raman Difference Spectra

2009 ◽  
Vol 113 (1) ◽  
pp. 215-220 ◽  
Author(s):  
Li-Jun Zhao ◽  
Qing-Xuan Zeng ◽  
Yun-Hong Zhang
Keyword(s):  
Difference Spectra ◽  
State Of Water

The state of water in acclimating vegetative buds from Malus and Amelanchier and its relationship to winter hardiness

1992 ◽  
Vol 86 (4) ◽  
pp. 503-511 ◽  
Author(s):  
Christina W. Vertucci ◽  
Cecil Stushnoff
Keyword(s):  
Winter Hardiness ◽  
The State ◽  
Vegetative Buds ◽  
State Of Water

ELECTRODYNAMIC SENSOR FOR ASSESSING TRANSFORMATIONS OF THE STATE OF WATER IN BIOLOGICAL OBJECTS

2018 ◽  
Vol 77 (12) ◽  
pp. 1103-1112
Author(s):  
Ch. Liu ◽  
I. N. Bondarenko ◽  
A. Yu. Panchenko ◽  
N. I. Slipchenko
Keyword(s):  
The State ◽  
Biological Objects ◽  
State Of Water

ELECTRODYNAMIC SENSOR FOR DETERMINING THE STATE OF WATER IN BIOLOGICAL OBJECTS

2019 ◽  
Vol 78 (9) ◽  
pp. 801-811
Author(s):  
Ch. Liu ◽  
I. N. Bondarenko ◽  
A. Yu. Panchenko ◽  
N. I. Slipchenko
Keyword(s):  
The State ◽  
Biological Objects ◽  
State Of Water

CONSIDERATION OF THE VALIDITY OF THE STATISTICAL CHARACTERISTICS OF pH IN SURFACE WATERS

2019 ◽  
Vol 13 (2) ◽  
pp. 52-58
Author(s):  
V. B. Korobov ◽  
I. V. Miskevich ◽  
A. S. Lokhov ◽  
K. A. Seredkin
Keyword(s):  
Field Measurements ◽  
Heavy Precipitation ◽  
The State ◽  
Statistical Characteristics ◽  
Mean Values ◽  
River Waters ◽  
Ph Values ◽  
State Of Water ◽  
Environment Temperature ◽  
Unit Characteristic

Abstract: pH is one of the most important parameters characterizing the state of water systems. The arithmetic mean values of samples are often used when averaging serial pH measurements in water bodies, as is usually done for other characteristics of the state of the natural environment (temperature, salinity, oxygen concentrations, suspended solids, etc.). However, in this case such an operation is illegal, since the addition of logarithms, which by definition are pH, is non-additive. The authors conducted a study to determine the extent to which pH variability in natural objects such an operation would not distort the results. For this, several samples of the pH index were generated in various ranges of its theoretically possible and natural variability. It was established that with pH variability of less than a unit characteristic of marine pH values, the statistical characteristics of the indicator and [H+ ] concentrations differ slightly, and the medians of the samples coincide. It is concluded that with such ranges characteristic of the waters of the oceans, there is no need to recalculate previously obtained results. However, for the estuaries of rivers flowing into tidal seas, as shown by field measurements, the pH variability in the mixing zone of sea and river waters is several times higher. Similar situations may occur when heavy precipitation falls on the water surface, as well as during floods. In these cases, a simple averaging of the pH values will no longer be correct. In such cases, the use of other averaging algorithms and the choice of stable statistical characteristics are required.

Review of research in the field of hygiene safety of recreational and drinking water use of the population of the Top Don basin

2020 ◽  
pp. 63-72
Author(s):  
Igor Mekhantiev
Keyword(s):  
Drinking Water ◽  
Water Use ◽  
Current System ◽  
Water Supply Systems ◽  
State Monitoring ◽  
Scientific Publications ◽  
Chemical Indicators ◽  
State Of Water ◽  
Supply Systems ◽  
Regional Problems

The article provides an overview of regional studies addressing the hygienic safety of recreational and drinking water use of the population of the Upper Don basin, conducted on the territory of the Voronezh region. The results of dissertation research for 1997–2019 and materials of modern scientific publications on the studied problem for 2015–2019, showing priority regional problems of water use of the population of the Upper Don Basin are considered. The data of scientific and practical work and state monitoring on the inconsistency of water quality with current standards in places of recreation at water bodies and drinking water of centralized water supply systems for sanitary and chemical indicators and microbiological safety indicators are presented. A description of the current system for monitoring the state of water resources is presented and attention is drawn to the need for its improvement.

To the problem of the state of water adsorbed on X-type zeolites

1972 ◽  
Vol 37 (2) ◽  
pp. 513-517 ◽  
Author(s):  
V. Bosáček ◽  
Z. Tvarůžková
Keyword(s):  
The State ◽  
State Of Water

scholarly journals Ultraviolet Difference Spectra of Tyrosine Groups in Proteins and Amino Acids

1958 ◽  
Vol 233 (6) ◽  
pp. 1421-1428 ◽  
Author(s):  
Donald B. Wetlaufer ◽  
John T. Edsall ◽  
Barbara R. Hollingworth
Keyword(s):  
Amino Acids ◽  
Difference Spectra
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