Globally, humanity is at risk from the coronavirus disease (COVID-19). To address the shortage of beds in quarantining those infected with COVID-19, hospitals have prepared temporary beds. However, for temporary hospital beds, it is difficult to maintain a comfortable temperature due to lack of insulation and heat storage. Phase change materials (PCMs) are used to provide temperature stability and control for temporary structure. Therefore, this study aimed to conduct experiments that analyze the effect of room temperature stabilization using a PCM. The method of macro packed PCM (MPPCM) was used to apply the PCM to buildings. The MPPCM installation location was selected and the effect of reducing the box temperature was analyzed, according to the strength of the heat source. As a result, a maximum reduction of 4.9 °C in the box temperature was achieved. Therefore, the application of MPPCM to buildings give to stabilize the box temperature. And the result showed the possibility of providing a comfortable indoor space for temporary hospital beds.
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http://dx.doi.org/10.1016/j.buildenv.2021.108540 | DOI Listing |
Heliyon
January 2025
Department of Environmental Sciences, Southern Illinois University Edwardsville, 44 Circle Drive SW 2145, PO Box 1099, Edwardsville, IL, USA, 62026.
The designated uses of lakes connect individuals to the natural environment, but some can expose recreational users to pathogens associated with fecal contamination that cause waterborne illnesses. Routine monitoring of fecal indicators in surface waters helps identify and track sources of fecal contamination to protect public health. We examined fecal indicators ( and enterococci) and factors influencing recreational freshwater quality.
View Article and Find Full Text PDFHeliyon
January 2025
Department of Chemistry, School of Physical Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana.
Zeolite was successfully synthesized using a mixture of kaolinite clay (which served as the alumina source) and rice husk ash (silica source). The aim of this work was to synthesize highly efficient zelolite to remove methyle blue dye from aqueous solution. The synthesized adsorbent was characterised using Fourier Transform Infrared (FTIR) spectroscopy, powder x-ray diffraction (PXRD) analysis, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and pH at the point of zero charge (pHpzc).
View Article and Find Full Text PDFNanotechnology
January 2025
Experimentalphysik, Saarland University, Fachrichtung 7.2, Campus E2.6, 66123 Saarbruecken, Saarbrucken, Saarland, 66123, GERMANY.
Color centers are promising single-photon emitters owing to their operation at room temperature and high photostability. In particular, using nanodiamonds as a host material is of interest for sensing and metrology. Furthermore, being a solid-state system allows for incorporation to photonic systems to tune both the emission intensity and photoluminescence spectrum and therefore adapt the individual color center to desired properties.
View Article and Find Full Text PDFAMB Express
January 2025
Department of Agricultural Microbiology, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, P.O. Box 68, Cairo, 11241, Egypt.
Valorization of poultry waste is a significant challenge addressed in this study, which aimed to produce cost-effective and sustainable peptones from poultry waste. The isolation process yielded the highly potent proteolytic B.subtilis isolate P6, identified through 16S rRNA gene sequencing to share 94% similarity with the B.
View Article and Find Full Text PDFSci Rep
January 2025
School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, P.O. Box: 16765-163, Tehran, Iran.
In this study, Response Surface Methodology (RSM) and Artificial Neural Networks (ANN) were developed to estimate the equilibrium solubility and partial pressure of CO in blended aqueous solutions of diisopropanolamine (DIPA) and 2-amino-2-methylpropanol (AMP). In this study, several key parameters were analyzed to understand the behavior of the aqueous DIPA/AMP system for CO capture. Including DIPA (9-21 wt%), AMP (9-21 wt%), temperature (323.
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