نتایج جستجو برای: relative recovery percentage humidity

تعداد نتایج: 715708  

2016
Arif OZBEK

In this study, the equations obtained non-iteratively are presented for moist air thermodynamic properties as a function of dry-bulb temperature and relative humidity. In this regard, an artificial neural network (ANN) was performed by using MATLAB software. In the ANN, dry-bulb temperature and relative humidity were specified as inputs, and water vapor saturation and partial pressures, wet-bul...

2017
Min Zhang Shunhang Wei Wei Ren Rong Wu

A gray TiO₂/SrTiO₃ composite nanocrystalline sensor with narrow band-gap was successfully prepared through a facile wet chemical method. The precursor was calcined in N₂ flow under atmospheric pressure and thereafter, a humidity sensor based on the composite was fabricated. The sensor showed high resistive sensitivity and varied by more than four orders of magnitude with an increase in relative...

2017
Kook In Han Seungdu Kim In Gyu Lee Jong Pil Kim Jung-Ha Kim Suck Won Hong Byung Jin Cho Wan Sik Hwang

Cylindrical silk fiber (SF) was coated with Graphene oxide (GO) for capacitive humidity sensor applications. Negatively charged GO in the solution was attracted to the positively charged SF surface via electrostatic force without any help from adhesive intermediates. The magnitude of the positively charged SF surface was controlled through the static electricity charges created on the SF surfac...

B Soltani M Ansari M Rezaeifar

the physicochemical properties of Iranian acetyl salicylic acid(ASA) tablets,including the products of 10 manufacturers with 14 products,from each 3 batches,totally 42 products have been studied.the properties under investigation are hardness,friability percintage,humidity percentage,free salicylic acid,content uniformity,amount of ASA disintegration time,and released percentage.the results ind...

2018
Wei Li Chao Ding Yun Cai Juyan Liu Linlin Wang Qingying Ren Jie Xu

The sensitivity of silicon nanopillar array for relative humidity (RH) with UV illumination was investigated in this work. The silicon nanopillar array was prepared by nanosphere lithography. Electrical measurements were performed on its sensing performance with and without UV irradiation. It was found that UV light improved the humidity sensitivity with different UV light wavelengths and power...

2012
Ahmed Zainelabdin Gul Amin Siama Zaman Omer Nur Jun Lu Lars Hultman Magnus Willander G. Amin S. Zaman L. Hultman

We demonstrate hydrothermal synthesis of coral-like CuO nanostructures by selective growth on ZnO nanorods (NR) at low temperatures. During the hydrothermal processing the resultant hydroxylated and eroded surface of ZnO NR becomes favorable for the CuO nanostructures growth via oriented attachments. Heterojunction p-n diodes fabricated from the CuO/ZnO nanocorals (NC) reveal stable and high re...

Climatic conditions affect the performance of photovoltaic panels. In this study, the effect of ambient air temperature and relative humidity on the performance parameters of two types of silicon photovoltaic solar panels, including mono-crystalline silicon (mc-Si) and polycrystalline silicon (pc-Si), were studied in the laboratory scale. The experiments were carried out by the performance test...

Journal: :environmental resources research 0
mehdi sarparast , gorgan university of agricultural sciences and natural resources muosa hesam gorgan university hamidraza asgari gorgan university

the fact that water is the most important factor of life on earth is not a new concept. alteration and reduction in the amount of precipitation, population explosion and contamination of underground water pressurize governments severely to find solution for water resources. the air moisture is one of fresh water resources which has not been noticed and well exploited. in this study proper place...

2003
W. Haag B. Kärcher J. Ström A. Minikin U. Lohmann A. Stohl

Freezing thresholds and cirrus cloud formation mechanisms inferred from in situ measurements of relative humidity W. Haag, B. Kärcher, J. Ström, A. Minikin, U. Lohmann, J. Ovarlez, and A. Stohl Deutsches Zentrum für Luftund Raumfahrt (DLR), Institut für Physik der Atmosphäre (IPA), Oberpfaffenhofen, Germany Stockholm University, Institute of Applied Environmental Research (ITM), Stockholm, Swed...

2010
W. Ingram Y. Tsushima M. Satoh M. Roberts P. L. Vidale P. A. O'Gorman Steven C. Sherwood William Ingram Yoko Tsushima Masaki Satoh Malcolm Roberts Pier Luigi Vidale Paul A. O’Gorman

[1] Key climate feedback due to water vapor and clouds rest largely on how relative humidity R changes in a warmer climate, yet this has not been extensively analyzed in models. General circulation models (GCMs) from the CMIP3 archive and several higher‐ resolution atmospheric GCMs examined here generally predict a characteristic pattern of R trend with global temperature that has been reported...

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