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Journal articles on the topic 'Relative humidity'

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1

Martin, R. Bruce. "Relative Humidity." Journal of Chemical Education 76, no. 8 (1999): 1081. http://dx.doi.org/10.1021/ed076p1081.

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2

Purnama, Prasanti Mia, Nadia Fadila, Najmi Fajrin Baharsyah, Ulya Farahnas, and Mauilal Hasanah. "Prediksi Parameter Kelembapan Udara Berdasarkan Data Penyinaran Matahari Menggunakan Metode Aproksimasi Kuadrat Terkecil." Zeta - Math Journal 8, no. 2 (2023): 60–65. http://dx.doi.org/10.31102/zeta.2023.8.2.60-65.

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Humidity is the measure, generally expressed as a percentage, of water vapor that presents in the air. Each place has different percentage of humidity. It happens since humidity is affected by solar radiation intensity. In this study, the percentage of relative humidity is being predicted by applying least square method and Gauss elimination. The data used in this research is the data of relative humiditity and solar radiation intensity during 2018 until 2022 which have been collected by Trunojoyo Stationary of Meteorology. The result shows that the approximation function generated by linear s
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3

Coulon, G. M., and S. Ballas. "OUTDOOR RELATIVE HUMIDITY ESTIMATION." Acta Horticulturae, no. 304 (March 1992): 327–34. http://dx.doi.org/10.17660/actahortic.1992.304.37.

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4

Erhardt, David, and Marion Mecklenburg. "Relative humidity re-examined." Studies in Conservation 39, sup2 (1994): 32–38. http://dx.doi.org/10.1179/sic.1994.39.supplement-2.32.

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5

Bucher, Manfred. "Diagram for relative humidity." Physics Teacher 24, no. 6 (1986): 348. http://dx.doi.org/10.1119/1.2342041.

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6

Seguin, John. "Relative Humidity Under Radiant Warmers: Influence of Humidifier and Ambient Relative Humidity." American Journal of Perinatology 14, no. 09 (1997): 515–18. http://dx.doi.org/10.1055/s-2007-994325.

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7

Gierens, K., and K. Eleftheratos. "Upper-tropospheric humidity changes under constant relative humidity." Atmospheric Chemistry and Physics Discussions 15, no. 20 (2015): 29497–521. http://dx.doi.org/10.5194/acpd-15-29497-2015.

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Abstract. Theoretical derivations are given on the change of upper-tropospheric humidity (UTH) in a warming climate. Considered view is that the atmosphere, getting moister with increasing temperatures, will retain a constant relative humidity. In the present study we show that the upper-tropospheric humidity, a weighted mean over a relative humidity profile, will change in spite of constant relative humidity. The simple reason for this is that the weighting function, that defines UTH, changes in a moister atmosphere. Through analytical calculations using observations and through radiative tra
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8

Gierens, Klaus, and Kostas Eleftheratos. "Upper tropospheric humidity changes under constant relative humidity." Atmospheric Chemistry and Physics 16, no. 6 (2016): 4159–69. http://dx.doi.org/10.5194/acp-16-4159-2016.

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Abstract. Theoretical derivations are given on the change of upper tropospheric humidity (UTH) in a warming climate. The considered view is that the atmosphere, which is getting moister with increasing temperatures, will retain a constant relative humidity. In the present study, we show that the upper tropospheric humidity, a weighted mean over a relative humidity profile, will change in spite of constant relative humidity. The simple reason for this is that the weighting function that defines UTH changes in a moister atmosphere. Through analytical calculations using observations and through r
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9

Liedberg, H. G., M. R. Mnguni, and D. Jonker. "A Simple Humidity Generator for Relative Humidity Calibrations." International Journal of Thermophysics 29, no. 5 (2008): 1660–67. http://dx.doi.org/10.1007/s10765-008-0423-z.

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10

Matbabayev, M. "The Optoelectronic Sensor Relative Humidity." Bulletin of Science and Practice 6, no. 10 (2020): 244–52. http://dx.doi.org/10.33619/2414-2948/59/24.

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This paper discusses the main characteristics of atmospheric air, the selected closed object on which the relative humidity depends to a certain extent, as well as a laboratory installation for studying the principle of constructing an optoelectronic sensor for measuring relative humidity. A description and diagram of the air humidity sensor, a block diagram of the installation for continuous monitoring of air humidity in the controlled object, a device for calibrating humidity sensors, and an algorithm for calibrating humidity sensors are given.
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11

Batirovich, Khayriddinov Akmal. "Relative humidity in green houses." ACADEMICIA: AN INTERNATIONAL MULTIDISCIPLINARY RESEARCH JOURNAL 11, no. 1 (2021): 823–28. http://dx.doi.org/10.5958/2249-7137.2021.00157.9.

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12

Gradon, Lewis. "Relative Humidity With Heating Wire." Critical Care Medicine 21, no. 10 (1993): 1613. http://dx.doi.org/10.1097/00003246-199310000-00036.

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13

Salib, Emad, and Nicola Sharp. "Relative humidity and affective disorders." International Journal of Psychiatry in Clinical Practice 6, no. 3 (2002): 147–53. http://dx.doi.org/10.1080/136515002760276072.

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14

Michalski, Stefan. "A relative humidity control module." Museum International 37, no. 2 (1985): 85–88. http://dx.doi.org/10.1111/j.1468-0033.1985.tb00556.x.

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15

Raymond, William H. "Moisture Advection Using Relative Humidity." Journal of Applied Meteorology 39, no. 12 (2000): 2397–408. http://dx.doi.org/10.1175/1520-0450(2000)039<2397:maurh>2.0.co;2.

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16

Nour, Elhouda Bakri, Bouchoucha Khaled, Nagara Walid, and Djemali M'Naouer. "Enhancing honeybee breeding for sustainable agriculture through temperature and relative humidity monitoring." World Journal of Advanced Research and Reviews 21, no. 2 (2024): 286–92. https://doi.org/10.5281/zenodo.13996572.

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Through their vital role in pollination, honeybee colonies play a crucial part in sustaining biodiversity and ensuring global food security. This paper aims to: 1) assess temperature and relative humidity variations within the hive and at the brood level; 2) determine genetic parameters for these traits; and 3) predict Breeding Values (PBVs) for honeybee colonies. Temperature and relative humidity data, during the period 2020-2023, were collected in Northern Tunisia using sensors placed inside hives and at the brood level. A dataset comprising 214,128 records for temperature and relative humid
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17

N. N. SRIVASTAVA, V.U.M. RAO, U. S. SAIKIA, P. VIJAYA KUMAR, and A.V.M. SUBBA RAO. "Modelling diurnal pattern of relative humidity from daily air temperature and relative humidity data of Hyderabad." Journal of Agrometeorology 13, no. 1 (2011): 25–30. http://dx.doi.org/10.54386/jam.v13i1.1329.

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This study presents a simple methodology to estimate diurnal patterns in dew point temperature/relative humidity on weekly basis from mean minimum temperature or the morning relative humidity under semi-arid climatic conditions of Hyderabad. The sinusoidal and exponential models for day time and night time temperature pattern have been utilized in working out the diurnal patterns of the relative humidity on weekly basis at Hyderabad. Diurnal variation in dew point has been found to have, by and large, a set pattern depending upon the morning dew point temperature. Diurnal relative humidity pat
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18

Lee, Sang-Wook, Young-Suk Lee, and Byung-Il Choi. "Relative Humidity Transducer Proficiency Test for KOLAS Humidity Calibration Laboratories." JOURNAL OF SENSOR SCIENCE AND TECHNOLOGY 32, no. 6 (2023): 447–54. http://dx.doi.org/10.46670/jsst.2023.32.6.447.

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19

Jain, Rajeev Kumar, Archa Sharma, Jaya Lalwani, Deepti Chaurasia, and Nagaraj Perumal. "Impact of relative humidity on SARS-CoV-2 RNA extraction using Nextractor automated extraction system." Journal of Biological Methods 11, no. 2 (2024): e99010012. http://dx.doi.org/10.14440/jbm.2024.0001.

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This study investigated the influence of relative humidity (RH) on the efficiency of SARS-CoV-2 RNA extraction using the Nextractor automated system. Experiments employing clinical samples demonstrated satisfactory sensitivity and reproducibility for RNA extraction at low humidity (below 50% RH). Conversely, extractions at high humidity (above 70% RH) resulted in complete failure of reverse transcription-polymerase chain reaction assays, with neither SARS-CoV-2 RNA nor the human RNase P gene (internal control) detected. Analysis suggested that residual ethanol, incompletely evaporating due to
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20

Baiti, Hidayati, Irawan Ferry, and Biola Herawati Yolanda. "ANALISIS KELEMBABAN UDARA PADA AC SPLIT WALL USIA PAKAI 8 TAHUN DENGAN KAPASITAS 18000 Btu/hr." AUSTENIT 13, no. 1 (2021): 8–12. https://doi.org/10.5281/zenodo.4735758.

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<em>Ordinary air conditioners known as air conditioners are increasingly circulating because it can provide comfort to humans. To obtain comfort in humans have a limit of temperature and humidity, many factors that can affect human comfort both temperature and humidity. Based on this research, the cooling system will affect the temperature, RH (Relative Humidity) and humidity ratio in air conditioners with a capacity of 18000 Btu / hr with a room volume of 200m3. Based on the results of the research can be that the cooling machine that is already 8 years old is still able to maintain the tempe
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21

Lin, X., and K. G. Hubbard. "Uncertainties of Derived Dewpoint Temperature and Relative Humidity." Journal of Applied Meteorology 43, no. 5 (2004): 821–25. http://dx.doi.org/10.1175/2100.1.

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Abstract This paper presents an evaluation of derived dewpoint temperature and derived relative humidity, in which the dewpoint temperature is calculated using measured ambient air temperature and measured relative humidity variables and the derived relative humidity is calculated from measured dewpoint temperature. The derived dewpoint temperature and relative humidity are calculated using algorithms provided by the World Meteorological Organization. The method of uncertainty analysis, provided by the National Institute of Standards and Technology, is applied to calculate the uncertainties of
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22

Sujau, M., I. Merts, and D. J. Cleland. "RELATIVE HUMIDITY CONTROL IN REFRIGERATED FACILITIES." Acta Horticulturae, no. 687 (July 2005): 313–20. http://dx.doi.org/10.17660/actahortic.2005.687.38.

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23

Kärcher, B., and W. Haag. "Factors controlling upper tropospheric relative humidity." Annales Geophysicae 22, no. 3 (2004): 705–15. http://dx.doi.org/10.5194/angeo-22-705-2004.

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Abstract. Factors controlling the distribution of relative humidity in the absence of clouds are examined, with special emphasis on relative humidity over ice (RHI) under upper tropospheric and lower stratospheric conditions. Variations of temperature are the key determinant for the distribution of RHI, followed by variations of the water vapor mixing ratio. Multiple humidity modes, generated by mixing of different air masses, may contribute to the overall distribution of RHI, in particular below ice saturation. The fraction of air that is supersaturated with respect to ice is mainly determine
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24

Denson, Eleanor, Conrad Wasko, and Murray C. Peel. "Decreases in relative humidity across Australia." Environmental Research Letters 16, no. 7 (2021): 074023. http://dx.doi.org/10.1088/1748-9326/ac0aca.

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25

Cho, G. J., K. H. Ahn, L. Y. Kim, et al. "Effect of relative humidity on preeclampsia." Clinical and Experimental Obstetrics & Gynecology 44, no. 2 (2017): 264–67. http://dx.doi.org/10.12891/ceog3462.2017.

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26

Parrott, L. J. "Factors influencing relative humidity in concrete." Magazine of Concrete Research 43, no. 154 (1991): 45–52. http://dx.doi.org/10.1680/macr.1991.43.154.45.

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27

Xie, Jingrui, Ying Chen, Tao Hong, and Thomas D. Laing. "Relative Humidity for Load Forecasting Models." IEEE Transactions on Smart Grid 9, no. 1 (2018): 191–98. http://dx.doi.org/10.1109/tsg.2016.2547964.

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28

David Suits, L., TC Sheahan, LA Oldecop, and EE Alonso. "Testing Rockfill Under Relative Humidity Control." Geotechnical Testing Journal 27, no. 3 (2004): 11847. http://dx.doi.org/10.1520/gtj11847.

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29

Smith, R. D. "Seed storage, temperature and relative humidity." Seed Science Research 2, no. 2 (1992): 113–16. http://dx.doi.org/10.1017/s0960258500001215.

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30

APHALO, P. J., and P. G. JARVIS. "Do stomata respond to relative humidity?" Plant, Cell and Environment 14, no. 1 (1991): 127–32. http://dx.doi.org/10.1111/j.1365-3040.1991.tb01379.x.

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31

Rooke, E. A., and L. van den Berg. "Equilibrium Relative Humidity of Plant Tissue." Canadian Institute of Food Science and Technology Journal 18, no. 1 (1985): 85–88. http://dx.doi.org/10.1016/s0315-5463(85)71725-7.

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32

Białobrzewski, I. "Neural modeling of relative air humidity." Computers and Electronics in Agriculture 60, no. 1 (2008): 1–7. http://dx.doi.org/10.1016/j.compag.2007.02.009.

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33

Lovell-Smith, J. W., and H. Pearson. "On the concept of relative humidity." Metrologia 43, no. 1 (2005): 129–34. http://dx.doi.org/10.1088/0026-1394/43/1/018.

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34

Sohoni, V. V., M. M. Paranjpe, and S. K. Banerji. "Fog and relative humidity in India." Quarterly Journal of the Royal Meteorological Society 60, no. 253 (2007): 15–22. http://dx.doi.org/10.1002/qj.49706025304.

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35

Panitz, J. K. G., L. E. Pope, J. E. Lyons, and D. J. Staley. "The tribological properties of MoS2 coatings in vacuum, low relative humidity, and high relative humidity environments." Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 6, no. 3 (1988): 1166–70. http://dx.doi.org/10.1116/1.575669.

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36

Skupin, A., A. Ansmann, R. Engelmann, P. Seifert, and T. Müller. "Four-year long-path monitoring of ambient aerosol extinction at a central European urban site: dependence on relative humidity." Atmospheric Chemistry and Physics Discussions 15, no. 8 (2015): 12583–616. http://dx.doi.org/10.5194/acpd-15-12583-2015.

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Abstract. The ambient aerosol particle extinction coefficient is measured with the Spectral Aerosol Extinction Monitoring System (SÆMS) along a 2.84 km horizontal path at 30–50 m height above ground in the urban environment of Leipzig (51.3° N, 12.4° E), Germany, since 2009. The dependence of the particle extinction coefficient (wavelength range from 300–1000 nm) on relative humidity up to almost 100% was investigated. The main results are presented. For the wavelength of 550 nm, the mean extinction enhancement factor was found to be 1.75 ± 0.4 for an increase of relative humidity from 40 to 8
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37

Rouadi, Philip, Fuad M. Baroody, David Abbott, Edward Naureckas, Julian Solway, and Robert M. Naclerio. "A technique to measure the ability of the human nose to warm and humidify air." Journal of Applied Physiology 87, no. 1 (1999): 400–406. http://dx.doi.org/10.1152/jappl.1999.87.1.400.

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To assess the ability of the nose to warm and humidify inhaled air, we developed a nasopharyngeal probe and measured the temperature and humidity of air exiting the nasal cavity. We delivered cold, dry air (19–1°C, &lt;10% relative humidity) or hot, humid air (37°C, &gt;90% relative humidity) to the nose via a nasal mask at flow rates of 5, 10, and 20 l/min. We used a water gradient across the nose (water content in nasopharynx minus water content of delivered air) to assess nasal function. We studied the characteristics of nasal air conditioning in 22 asymptomatic, seasonally allergic subject
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38

Liu, Ying, Hongbo Mo, and Xiaolin Wang. "Influence Factors and Uncertainty Analysis of Relative Humidity Measured by Psychrometer." Journal of Physics: Conference Series 2500, no. 1 (2023): 012006. http://dx.doi.org/10.1088/1742-6596/2500/1/012006.

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Abstract Based on the measurement principle of psychrometer and experimental data, the influence of wind speed on humidity measurement is analyzed, and the uncertainty of humidity measured by psychrometer is evaluated by GUM method. The research results show that under the condition of high temperature and high humidity, the relative humidity measured by psychrometer is not sensitive to wind speed. When the relative humidity is 90%RH and air temperature is 85°C, the difference of relative humidity calculated by using different psychrometer coefficients is 0.03% RH. With the decrease of dry-bul
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39

Fleming, Rex J. "A Note on Temperature and Relative Humidity Corrections for Humidity Sensors." Journal of Atmospheric and Oceanic Technology 15, no. 6 (1998): 1511–15. http://dx.doi.org/10.1175/1520-0426(1998)015<1511:anotar>2.0.co;2.

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40

Zhan, Xiancheng, Yingli Wang, Lan Cao, Linli Li, and Chengrong Li. "Determining critical relative humidity by measuring air humidity in equilibrium directly." European Journal of Pharmaceutical Sciences 41, no. 2 (2010): 383–87. http://dx.doi.org/10.1016/j.ejps.2010.07.002.

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41

Wichert, Rex A., Robert Bozsa, Ronald E. Talbert, and Lawrence R. Oliver. "Temperature and Relative Humidity Effects on Diphenylether Herbicides." Weed Technology 6, no. 1 (1992): 19–24. http://dx.doi.org/10.1017/s0890037x00034230.

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The influence of temperature and relative humidity on the activity of acifluorfen, fomesafen, lactofen, and acifluorfen plus bentazon on prickly sida, pitted and entireleaf morningglory, and common cocklebur was evaluated in a growth chamber. Reduced control of all species was observed at 50% relative humidity as compared to 85% relative humidity when temperatures were higher (32/55 C day/night). Similar response to relative humidity was observed at the lower temperature (25/15 C) when treatments were applied 14 days after emergence (DAE). Changes in temperature at the same relative humidity d
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42

Akinyemi, Oluwadare, Sunday O. Imoni, J. Ayodele Kupolusi, and Felix Okutu. "STATISTICAL ANALYSIS OF RELATIVE HUMIDITY PATTERNS OF LOKOJA, NIGERIA." FUDMA JOURNAL OF SCIENCES 9, no. 2 (2025): 298–304. https://doi.org/10.33003/fjs-2025-0902-3273.

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This study focuses on the management of moisture and the monitoring of relative humidity (RH) patterns in order to maintain optimal conditions for finished products and human comfort. High humidity levels in homes can lead to issues such as the growth of dust mites, causing various irritations and allergies. The research emphasizes the importance of considering relative humidity values in the planning of tropical humid cities to create healthy and comfortable urban environments. Statistical measures and methods are employed to analyze the trend and project future relative humidity measurements
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43

Cheng, Yun, Weijing Xie, Xun Yu, Hong Lu, and Minghong Yang. "Optical coatings on f iber for relative-humidity sensing applications." Chinese Optics Letters 11, S1 (2013): S10404. http://dx.doi.org/10.3788/col201311.s10404.

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44

Luampon, Ratinun, and Suparerk Charmongkolpradit. "Temperature and relative humidity effect on equilibrium moisture content of cassava pulp." Research in Agricultural Engineering 65, No. 1 (2019): 13–19. http://dx.doi.org/10.17221/112/2017-rae.

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The purpose of this research was to study the effect of temperature and relative humidity on the equilibrium moisture content of cassava pulp. In experiments, cassava pulp was tested with a static method that controlled the temperature at 30, 50 and 70°C and controlled relative humidity in a range 10–90% with standard saturated salt solutions as LiCl, MgCl2, NaBr, NaCl and KNO3. Five equations of equilibrium moisture isotherm were analysed to predict the equilibrium moisture content, which was a guideline to develop a new isotherm equation. The experimental results showed that the equilibrium
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45

Jaiyeola, O. Paul, and Ayegba Abdullahi. "The Impact of Temperature and Relative Humidity Elevation on Mental Health of In Patient Admitted Into Jos Teaching Hospital Jos, Plateau State, Nigeria." International Journal of Trend in Scientific Research and Development 4, no. 2 (2020): 125–36. https://doi.org/10.5281/zenodo.3843002.

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The paper examined the impact of temperature and relative humidity escalation on mental health of in patient admitted into Jos Teaching Hospital JUTH Jos, Plateau State, Nigeria. The main independent variables of interest were temperature and relative humidity we also employed two derived parameters heat index and overlapping effect in our analysis in which we used four years 2011 2014 data of psychiatric cases and in patient that were admitted in the hospital, ex post facto research design was adopted for the study. The population of the study comprised 2073 in patient that was admitted in th
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46

Sui, Xue Min, Xu Zhang, and Guang Hui Han. "Design Range of Indoor Relative Humidity in Radiant Cooling Environment." Advanced Materials Research 243-249 (May 2011): 4905–8. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.4905.

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Relative humidity is an important micro-climate parameter in radiant cooling environment. Based on the human thermal comfort model, this paper studied the effect on PMV index of relative humidity, and studied the relationship of low mean radiant temperature and relative humidity, drew the appropriate design range of indoor relative humidity for radiant cooling systems.The results show that high relative humidity can compensate for the impact on thermal comfort of low mean radiant temperature, on the premise of achieving the same thermal comfort requirements. However, because of the limited com
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47

Schoenbaum, Mark A., Jeff J. Zimmerman, George W. Beran, and Dorothy P. Murphy. "Survival of pseudorabies virus in aerosol." American Journal of Veterinary Research 51, no. 3 (1990): 331–33. http://dx.doi.org/10.2460/ajvr.1990.51.03.331.

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SUMMARY The survival of pseudorabies virus in an aerosol was studied under different environmental conditions of temperature and relative humidity. Pseudorabies virus decayed logarithmically with mean half-lives of 17.4 (85% relative humidity, 22 C), 18.8 (25% relative humidity, 22 C), 27.3 (85% relative humidity, 4 C), 36.1 (55% relative humidity, 22 C), and 43.6 (55% relative humidity, 4 C) minutes. Virus survival was significantly improved in environments at 55% relative humidity, compared with those at 85% relative humidity (P = 0.017). Rates of survival were improved in environment at 4 C
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48

CHAKRABARTY, KK. "Diurnal variation of relative humidity over Calcutta (Alipore) and a statistical approach for forecasting minimum relative humidity." MAUSAM 39, no. 1 (1988): 97–102. http://dx.doi.org/10.54302/mausam.v39i1.3198.

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A case study on diurnal variation of relative humidity over Calcutta (Alipore) for 1981 reveals (i) Driest period of RH &lt;40% around 1500 IST between mid-December to mid February and also around 1400 IST in the month of November, (ii) Moist period of RH&gt;90 % around 0600 IST during the whole year. The variability of the hourly RH values IS lowest during monsoon. moths In the early morning, however, the highest variability during a day in any month does not coincide with time of occurrence of the minimum RH of that month.&#x0D; Pentad normal of minimum and maximum RH over Alipore through th
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49

S. R. BHAKAR, RAJ VIR SINGH, NEERAJ CHHAJED, and ANIL KUMAR BANSAL. "Stochastic modelling of relative humidity at Banswara." Journal of Agrometeorology 10, no. 1 (2008): 53–58. http://dx.doi.org/10.54386/jam.v10i1.1171.

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Study was conducted to develop stochastic model for monthly minimum and maximum relative humidity using 12 years (1992-2003) data of Banswara. The performed statistical test indicates that the series of monthly minimum and maximum relative humidity data are trend free. Their periodic components can be presented satisfactorily by the second harmonics. The stochastic components of both monthly minimum and maximum relative humidity follow second order Markov model. Validation of generated was made with measured series. A high correlation coefficient of 0.9980 and 0.9976 for mean monthly minimum a
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50

JASWAL, A. K., and A. L. KOPPAR. "Recent climatology and trends in surface humidity over India for 1969-2007." MAUSAM 62, no. 2 (2021): 145–62. http://dx.doi.org/10.54302/mausam.v62i2.270.

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Annual and seasonal trends in specific humidity, relative humidity and dry bulb temperature based upon 215 stations across India are studied. The results of trend analysis show evidence of an increase in air moisture content over India during 1969-2007 with more than 90% stations showing increasing trends in specific humidity. Climatological means of specific humidity and relative humidity for the country are 14.1 g/kg and 63.9% respectively and trends are significantly increasing for all periods except for relative humidity in monsoon season. Annual trends in specific humidity, relative humid
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