Temat: relative temperature - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Prognozowanie i kontrolowanie dynamicznych zjawisk metanowych w kopalniach węgla kamiennego na podstawie pomiaru temperatury względnej calizny węglowej
Forecasting and monitoring of dynamie methane phenomena in coal mines based on the relative temperature of unmined coal
Autorzy:: Kajewski, B.
Kobiela, Z.
Powiązania:: https://bibliotekanauki.pl/articles/340587.pdf
Data publikacji:: 2011
Wydawca:: Główny Instytut Górnictwa
Tematy:: calizna węglowa
kopalnia węgla kamiennego
temperatura względna
metoda pomiarowa
aparatura pomiarowa
metan
zagrożenie metanowe
zjawiska gazodynamiczne
desorpcja gazu
unmined coal
coal mine
relative temperature
measuring apparatus
measurement method
methane
methane hazard
gasodynamics phenomenas
gas desorption
Opis:: W artykule przedstawiono rezultaty wieloletnich badań autorów nad zmianą temperatury względnej węgla w pokładach pod wpływem desorpcji metanu, prowadzonych w Głównym Instytucie Górnictwa. Pozwoliły one na opracowanie kryteriów, metody i aparatury pomiaru temperatury względnej węgla w strefie okołoprzodkowej pod wpływem desorpcji metanu i zachodzących procesów endotermicznych. Przedstawiono propozycję zastosowania pomiaru temperatury względnej węgla w pokładach nasyconych metanem dla bieżącej oceny stanu zagrożenia metanem oraz zjawiskami gazogeodynamicznymi w strefie okołoprzodkowej. Przedstawiona metoda pomiarowa i aparatura pozwalają szybciej i dokładniej ocenić rzeczywiste zagrożenie metanowe i zagrożenie zjawiskami gazogeodynamicznymi w drążonych wyrobiskach, w pokładach nasyconych metanem.
The paper discusses the method and apparatus for non-contact measurement of temperaturę of the coal mass within prospecting boreholes, with the aim of making a current prognosis of the hazard due to the outburst of methane and rock in driven mine headings, and of determining the buffer zone to protect the heading against unexpected outbursts. The probe to control borehole temperature operates on the basis of non-contact measurement of temperaturę. It is designed to perform continuous measurements of the relative temperature along the walls of the prospecting borehole with the diameter of 50-90 mm, and to determine the outburst hazard zones in the coal headings of the mine workings. The measurement of temperature along the borehole, realised by means of the probe, is aimed at locating the hazard zone (HZ) in respect of the outburst, and at simultancous determining the buffer safety zone (BSZ). The determination of HZ and BSZ zones is of vital importance for safety of mining crews employed at driving the workings in coal seams endangered with outbursts of methane and rock. The HZ zone provides information on the location of oceurrence of the hazard zone in respect of the outburst ahead of the front of the driven working. In turn, the BSZ zone defines the thickness of the stress-relieved and degassed protective coal mass, protecting the heading against a direct contact with the BSZ zone.
Źródło:: Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa; 2011, 3; 37-48
1643-7608
Pojawia się w:: Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Characteristics of water temperature and salinity at Admiralty Bay (King George Island, South Shetland Islands Antarctic) during the austral summer1978/1979
Autorzy:: Szafrański, Zygmunt
Lipski, Maciej
Powiązania:: https://bibliotekanauki.pl/articles/2057653.pdf
Data publikacji:: 1982
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Admiralty Bay
temperature
salinity
relative density
Źródło:: Polish Polar Research; 1982, 3, 1-2; 7-24
0138-0338
2081-8262
Pojawia się w:: Polish Polar Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Optimizing the Protection Against the Physiological Burden of CBRN Clothing
Autorzy:: Brasser, P.
Powiązania:: https://bibliotekanauki.pl/articles/90890.pdf
Data publikacji:: 2010
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: protective clothing
protection
CBRN
physiological burden
NBC
temperature relative
humidity
vapour
air velocity
deposition
model
breakthrough permeable
whole
system
cylinder
optimize
mission specific
Opis:: Soldiers can wear chemical, biological, radiological and nuclear (CBRN) protective clothing to be protected agaist warfare agents. The disadvantage of that clothing is that higher protection introduces higher physiological burden. Therefore an optimum between comfort and protection must be found. Models of all relevant processes were created to find this optimum. The airflow profile around a cylinder with clothing—representing a dressed human body part—was modelled. This flow profile was used for calculating the agent vapour breakthrough through the clothing and for calculating the deposition of agents onto the skin (as indicators for protection). The flow profile was also used for calculating the temperature profile around the body part and the relative humidity underneath and in the clothing (as representative for physiological burden). As a result a tool was created, which can be used to identify the optimum properties of CBRN protective clothing, depending on the intended mission of the soldiers.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2010, 16, 2; 153-168
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Effects of Changes in Temperature, Rainfall and Relative Humidity on Banana Production in Ondo State, Nigeria
Autorzy:: Salau, Opeyemi R.
Momoh, Marvelous
Olaleye, Oluwatosin A.
Owoeye, Rufus S.
Powiązania:: https://bibliotekanauki.pl/articles/1190205.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Banana
Plantain
Rainfall
Temperature
Agriculture
Relative Humidity
Opis:: The effects of climate change on agriculture may have strong impacts on the world’s food economy and are likely to threaten both the welfare of the world’s population and the economic development of the global society. Hence, the impacts of changes in important climate variables like temperature, rainfall and relative humidity on the production of a major food commodity called banana is investigated using the data obtained within 1998-2012 from Ondo State, Nigeria. The results suggest that excessive rainfall and extremely high temperature can reduce banana productivity while the production is also small when both rainfall and temperature are very low with poor humidity. On the average, the findings show that a mean temperature of about 26 °C and average rainfall of around 1891mm with relative humidity of approximately 77% will lead to good annual banana production above 61,000 tons in Ondo State. Since these climate variables will fluctuate under a future climate change condition, the coping strategies recommended for farmers in the area and in similar places might include planting of drought- and disease resistant banana types, monitoring of weather conditions, use of irrigation and chemicals. Improved storage facilities are also important while transportation of banana should be done under controlled conditions to avoid spoiling the quality.
Źródło:: World Scientific News; 2016, 44; 143-154
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The Changes in Temperature and Relative Humidity in Lagos State, Nigeria
Autorzy:: Salau, Opeyemi R.
Powiązania:: https://bibliotekanauki.pl/articles/1182945.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: temperature
relative humidity
rainfall
global warming
heat stroke
lagos
Opis:: The variability in the temperature and Relative Humidity (RH) observed within Lagos State, a coastal region in Nigeria, is investigated using data from Nigeria Meteorological Agency (NIMET) for 1980 to 2010. The results reveal an annual mean value of 27.20°C and 83.01% for the temperature and RH respectively and an increasing trend in RH over the study period while such rising trend in the mean temperature is reversed from 2005 to 2010. The findings show an inverse relationship between the temperature and RH while it further indicates that low temperature is associated with increased rainfall under the accompanying cloudy condition and vice versa. These observations are supported by the strong correlation coefficients between the RH and the rainfall (0.72) and that between the RH and the temperature (-0.95) while -0.59 is obtained between the rainfall and the corresponding temperature. The correlations show that the impacts of the precipitation on RH are stronger than the effects it has on the temperature while both temperature and RH strongly depends on each other. Hence, under a future global warming, extremely warm atmospheric condition characterized by high RH in the coastal region could cause heat stroke, discomfort and health problems among the inhabitants. However, the area becomes conducive and attractive to tourists under moderate RH and good temperature.
Źródło:: World Scientific News; 2016, 49, 2; 295-306
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Evaluation of models for the dew point temperature determination
Autorzy:: Górnicki, K.
Winiczenko, R.
Kaleta, A.
Choińska, A.
Powiązania:: https://bibliotekanauki.pl/articles/298023.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:: dew point temperature
relative humidity
model
artificial neural networks
Opis:: The accuracy of the available from the literature models for the dew point temperature determination was compared. The proposal of the modelling using artificial neural networks was also given. The experimental data were taken from the psychrometric tables. The accuracies of the models were measured using the mean bias error MBE, root mean square error RMSE, correlation coefficient R, and reduced chi-square χ² . Model M3, especially with constants A=237, B=7.5, gave the best results in determining the dew point temperature (MBE: -0.0229 – 0.0038 K, RMSE: 0.1259 – 0.1286 K, R=0.9999, χ² : 0.0159 – 0.0166 K² ). Model M1 with constants A=243.5, B=17.67 and A=243.3, B=17.269 can be also considered as appropriate (MBE=-0.0062 and -0.0078 K, RMSE=0.1277 and 0.1261 K, R=0.9999, χ² =0.0163 and 0.0159 K² ). Proposed ANN model gave the good results in determining the dew point temperature (MBE=-0.0038 K, RMSE=0.1373 K, R=0.9999, χ² =0.0189 K² ).
Źródło:: Technical Sciences / University of Warmia and Mazury in Olsztyn; 2017, 20(3); 241--257
1505-4675
2083-4527
Pojawia się w:: Technical Sciences / University of Warmia and Mazury in Olsztyn
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Development of Selected Parameters of Microclimate in a Stand Alone Cellar Plunged into Soil
Autorzy:: Nawalany, G.
Sokołowski, P.
Herbut, P.
Angrecka, S.
Powiązania:: https://bibliotekanauki.pl/articles/123949.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: cellar plunged into soil
air temperature
air relative humidity
soil
Opis:: The thesis presents the analysis of development of selected parameters of microclimate in a standalone cellar plunged into soil. The scope of studies included measurement of air internal and external temperature and relative humidity of internal and external air. The thesis also concerns the analysis of heat exchange of cellar compartments with the surrounding soil. The studies were carried out from July 11, 2012 to July 10, 2013. The analysis of the obtained results of studies proved that the internal air temperature in the examined cellar was mainly formed by the external air temperature as well as by the surrounding soil. For 42% of storage period, the thermal conditions in the cellar plunged into soil were unfavorable which disqualifies the cellar’s purpose for storage of vegetables, e.g. potatoes. Too high temperature was observed in the initial and final period. Favorable storage conditions were experienced only in the period from December 14, 2012 to April 11, 2013. To adjust this kind facility for storage of vegetables, thermal insulation of compartments and installation of cooling units is required.
Źródło:: Journal of Ecological Engineering; 2017, 18, 3; 156-161
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Variation in Direct Solar Irradiation with Relative Humidity and Atmospheric Temperature
Autorzy:: Wazwaz, Aref
Khan, Mohd Shariq
Powiązania:: https://bibliotekanauki.pl/articles/124148.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: solar irradiation
pyranometer
relative humidity
atmospheric temperature
accumulative solar flux
Opis:: A class first Pyranometer was used to measure the direct solar irradiation and the obtained results were analyzed. Separate sensors were used to measure the relative humidity and the atmospheric temperature (RH/AT sensors). The measurements were conducted for the whole year of 2013. The author analyzed the collected solar data during one day, month, and year. The maximum, minimum, average, and accumulative solar irradiation (SR) were calculated and analyzed with connection to relative humidity and atmospheric temperature. The author found that April was characterized by the average maximum solar irradiation (SR= 1112±1W/m²), May had the maximum SR accumulation (13276552± 1W/m²). The maximum average percentage relative humidity found in July (% RH = 97± 3%), while the minimum average % RH is in December (% RH = 25± 3%). In May, the maximum average atmospheric temperature was 36.0 ± 0.6°C, while the average minimum was in January (AT= 19.1 ± 0.6°C). The total accumulation of solar flux during the year 2013 is 222 ± 1MW/m².
Źródło:: Journal of Ecological Engineering; 2019, 20, 9; 38-43
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Raschetnyjj metod opredelenija rezhimov oroshenija s ispolzovaniem klimaticheskikh pokazatelejj
Calculating method for defining irrigation modes using climatic indices
Autorzy:: Karaiev, A.
Susho, S.
Gorbach, N.
Powiązania:: https://bibliotekanauki.pl/articles/76631.pdf
Data publikacji:: 2015
Wydawca:: Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:: calculation method
watering
irrigation
air temperature
relative air humidity
precipitation
climate index
Źródło:: Motrol. Motoryzacja i Energetyka Rolnictwa; 2015, 17, 9
1730-8658
Pojawia się w:: Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Influence of Environment Conditions on Ultrasonic and Electrostatic Precipitation of Aerosols of Wood Flour
Autorzy:: Stepkina, Maria
Kudryashova, Olga
Antonnikova, Alexandra
Powiązania:: https://bibliotekanauki.pl/articles/177035.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: dispersive medium
relative humidity
temperature
ultrasonic radiation
electrostatic field
finely-dispersed aerosol particles
Opis:: The risk of human exposure to finely-dispersed aerosol particles being airborne indoors is determined by the size and the number concentration of particles, the intensity of an aerosol emission source, the air filtration and ventilation efficiency, etc. The emphasis in this article is on behaviour patterns of aerosol particles when exposed to ultrasonic and electrostatic fields in different conditions of air temperature and relative humidity. Wood flour having sizes of interest (characteristic particle diameter about 10 μm) is chosen as a model aerosol. The article considers a physical and mathematical model presenting the evolution of aerosol particles in external fields, taking into account the moisture content and the temperature of a dispersive medium. The efficiency of ultrasonic and electrostatic precipitation in different relative humidity and temperature conditions in an enclosed space was studied using optical measurement methods of particle size and concentration.
Źródło:: Archives of Acoustics; 2020, 45, 1; 29-34
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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