A Study on Winter Season Measurement Results to cope with Dynamic Pricing for the VRF System

The paper presents a study of air pollution caused by black carbon (BC) and fine particulate matter (PM) carried out in the rural area of the municipality of Loški Potok in the winter season of 2017/2018. Measurements of pollutants were performed at two different locations, one at Retje, a village at the bottom of a karst depression, and the other on the top of the Tabor hill in settlement Hrib. The measurement results exposed the main sources of black carbon air pollution in this area: domestic heating with biomass (almost 80% of all black carbon emissions) and unfavorable meteorological conditions for dilution of pollutants during temperature inversions. Three times higher concentrations were measured at Retje during temperature inversions than in the days of mixed atmosphere. In the winter of 2017/18, the average concentrations in the Retje hollow were even higher than those of Ljubljana, which calls attention to the problem of polluted air in rural areas too.

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METHOD OF TRANSMITTING THE COORDINATES OF THE TOTAL STATION TO THE POINTS OF THE INTERNAL CENTRAL NETWORK OF AN ENGINEERING CONSTRUCTION

Vestnik SSUGT (Siberian State University of Geosystems and Technologies) ◽

10.33764/2411-1759-2021-26-5-52-62 ◽

2021 ◽

Vol 26 (5) ◽

pp. 52-62

Author(s):

Georgij A. Ustavich ◽

◽

Nikolay S. Kosarev ◽

Dmitriy A. Barannikov ◽

Ivan A. Mezentsev ◽

...

Keyword(s):

Thermal Power ◽

Temperature Drop ◽

Winter Season ◽

Construction Sites ◽

Total Station ◽

Engineering Construction ◽

Engineering Structure ◽

Optical Media ◽

Air Turbulence ◽

Measurement Results

When creating an external planning and high-altitude justification on construction sites, and then internal center networks for the purpose of transmitting coordinates in a number of cases, geodetic measurements are performed through an optical medium, which in some areas has a different refractive index. This is the case when performing such measurements in the winter season, when the trans-mission is made through the technological gate of the temporary end of an engineering structure, for example, a nuclear or thermal power plant. The disadvantage of this method is the influence of significant air turbulence at the border of a sharp temperature drop in winter. To eliminate this influence, it is proposed to transmit coordinates inside the engineering structure through window openings. In this case, the total station can be located inside the engineering structure or outside it. When implementing the proposed method, the influence of a sharp temperature drop on the measurement results is almost completely excluded. Studies have established that when the coordinates are transmitted through the glass to the points of internal justification, a parallel transfer of the sighting beam occurs. To exclude it, the sighting must be performed at the horizontal position of the total station telescope. The article presents the results of studies of the accuracy of measuring distances and angles when the sighting (laser) beam of the total station passes through two optical media (air-glass-air) at different air temperature differences.

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How do we sedate children undergoing CSF opening pressure measurement? Results of a Germany-wide survey

Neuropediatrics ◽

10.1055/s-0031-1274037 ◽

2011 ◽

Vol 42 (S 01) ◽

Author(s):

D Tibussek ◽

F Distelmaier ◽

S Kummer ◽

E Mayatepek

Keyword(s):

Pressure Measurement ◽

Opening Pressure ◽

Measurement Results

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State special primary acceleration measurement standard for gravimetry GET 190-2019

Izmeritel`naya Tekhnika ◽

10.32446/0368-1025it.2020-7-3-8 ◽

2020 ◽

pp. 3-8

Author(s):

L.F. Vitushkin ◽

F.F. Karpeshin ◽

E.P. Krivtsov ◽

P.P. Krolitsky ◽

V.V. Nalivaev ◽

...

Keyword(s):

High Precision ◽

Free Fall ◽

Measurement Range ◽

Measurement Standard ◽

Acceleration Measurement ◽

Measurement Systems ◽

Free Fall Acceleration ◽

Investigation Methods ◽

Measurement Results ◽

Upper Level

The State special primary acceleration measurement standard for gravimetry (GET 190-2019), its composition, principle of operation and basic metrological characteristics are presented. This standard is on the upper level of reference for free-fall acceleration measurements. Its accuracy and reliability were improved as a result of optimisation of the adjustment procedures for measurement systems and its integration within the upgraded systems, units and modern hardware components. A special attention was given to adjusting the corrections applied to measurement results with respect to procedural, physical and technical limitations. The used investigation methods made it possibled to confirm the measurement range of GET 190-2019 and to determine the contributions of main sources of errors and the total value of these errors. The measurement characteristics and GET 90-2019 were confirmed by the results obtained from measurements of the absolute value of the free fall acceleration at the gravimetrical site “Lomonosov-1” and by their collation with the data of different dates obtained from measurements by high-precision foreign and domestic gravimeters. Topicality of such measurements ensues from the requirements to handle the applied problems that need data on parameters of the Earth gravitational field, to be adequately faced. Geophysics and navigation are the main fields of application for high-precision measurements in this field.

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Development of reference materials with the composition of propyl and isopropyl alcohol solutions

Izmeritel`naya Tekhnika ◽

10.32446/0368-1025it.2020-6-66-72 ◽

2020 ◽

pp. 66-72

Author(s):

Irina A. Piterskikh ◽

Svetlana V. Vikhrova ◽

Nina G. Kovaleva ◽

Tatyana O. Barynskaya

Keyword(s):

Reference Materials ◽

Measurement Errors ◽

Isopropyl Alcohol ◽

Certified Reference Materials ◽

Toxic Substances ◽

Biological Objects ◽

Margin Of Error ◽

Measurement Results ◽

And Control ◽

Characteristic Mass

Certified reference materials (CRM) composed of propyl (11383-2019) and isopropyl (11384-2019) alcohols solutions were created for validation of measurement procedures and control of measurement errors of measurement results of mass concentrations of toxic substances (alcohol) in biological objects (urine, blood) and water. Two ways of establishing the value of the certified characteristic – mass consentration of propanol-1 or propanol-2 have been studied. The results obtained by the preparation procedure and comparison with the standard are the same within the margin of error.

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Problems of ensuring metrological traceability of measurement results of indicators of quality for food products and food raw materials

Izmeritel`naya Tekhnika ◽

10.32446/0368-1025it.2020-3-64-70 ◽

2020 ◽

pp. 64-70

Author(s):

Mariya Y. Medvedevskikh ◽

Anna S. Sergeeva

Keyword(s):

Reference Materials ◽

Mass Fraction ◽

Nutritional Value ◽

Animal Feed ◽

Raw Materials ◽

Meat Products ◽

Metrological Traceability ◽

Food Products ◽

Freeze Dried ◽

Measurement Results

The article raises the problem of ensuring metrological traceability of the measurement results of indicators of quality and nutritional value for food products and food raw materials: water (moisture), nitrogen (protein, crude protein), fat, ash and carbohydrates. The problem under consideration can be solved by applying reference materials of food composition, traceable to state primary measurement standards GET 173-2017 and GET 176-2019 and primary reference measurement procedures (PRMP), for attestation of measurement procedures and accuracy checking of measurement results. The article discusses the results of the PRMP development of mass fraction of fat, ash and carbohydrates in food products and food raw materials, as well as mass fraction of crude fat (oil content) in oil crops seeds and products based on them. The paper also presents metrological characteristics of reference materials of composition of dry dairy products, grain-milk dry porridges for nutrition of babies, grain dry porridges for nutrition of babies, egg powder, freeze-dried meat products, animal feed. The results of the work allow for building a chain of metrological traceability from GET 173-2017, GET 176-2019 and PRMP to routine measurement procedures, thereby ensuring the uniformity of measurements of nutritional value of food products.

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PREVALENCE OF PSEUDOINVERTA ORAIENSIS IN FRESH WATER FISH, CLARIAS BATRACHUS

FLORA AND FAUNA ◽

10.33451/florafauna.v25i1pp66-68 ◽

2019 ◽

Vol 25 (1) ◽

Author(s):

ADITYA NARAYAN

Keyword(s):

Fresh Water ◽

Monsoon Season ◽

Winter Season ◽

Uttar Pradesh ◽

Summer Season ◽

Clarias Batrachus ◽

Fresh Water Fish ◽

Water Fish

The present investigation deals with the prevalence of infection of cestode, Pseudoinverta oraiensis19 parasitizing Clarias batrachus from Bundelkhand Region (U.P.) India. The studies were recorded from different sampling stations of Bundelkhand region of Uttar Pradesh. For this study 360 fresh water fish, Clarias batrachus were examined. The incidence of infection, monsoon season (17.50%) followed by winter season (20.00%) whereas high in summer season (30.00%).

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STUDY ON DIVERSITY AND DISTRIBUTION OF ANTS (HYMENOPTERA: FORMICIDAE) IN URBAN AND PERIURBAN AREAS OF AURANGABAD CITY, MAHARASHTRA, INDIA

FLORA AND FAUNA ◽

10.33451/florafauna.v23i2pp404-410 ◽

2017 ◽

Vol 23 (2) ◽

Author(s):

S. D. CHATE ◽

R. J. CHAVAN

Keyword(s):

Rainy Season ◽

Winter Season ◽

Seasonal Abundance ◽

Urban Region ◽

Ant Community ◽

Community Variation

The present study deals with the ant community variation in and around Aurangabad city. During the study total 16 species of ants belonging to twelve genera and four subfamilies were reported in eight habitat from urban and periurban regions. Abundance of ants was more in peri-urban region as compared to urban region. Subfamily myrmicinae was more dominant as compared to other subfamilies. Seasonal abundance of ants was seen to be more in winter season and less in rainy season.

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