MyMedR

Displaying all 3 publications

Abstract:

Sort:

Sweating distribution and active sweat glands on the scalp of young males in hot-dry and hot-humid environments

Jung D, Kim YB, Lee JB, Muhamed AMC, Lee JY

Eur J Appl Physiol, 2018 Dec;118(12):2655-2667.
PMID: 30209544 DOI: 10.1007/s00421-018-3988-7

PURPOSE: We investigated the effects of humidity on regional sweating secretion and active sweat gland density on the scalp during passive heating in hot environments.
METHODS: Eight male subjects shaved their heads prior to expose to dry (30%RH; H30%) and humid (85%RH; H85%) conditions at an air temperature of 32 °C. Total sweat rate, local sweat rates (frontal, vertex, temporal, and occipital regions), active sweat glands on the scalp (2 frontal, 2 parietal, 2 temporal, 1 occipital, and 1 vertex), and rectal and skin temperatures were measured during leg immersion in 42 °C water for 60 min.
RESULTS: (1) Total sweat rates were greater for H30% (179.4 ± 35.6 g h-1) than for H85% (148.1 ± 27.2 g h-1) (P
Fulltext MXene Based Nanocomposites for Recent Solar Energy Technologies

Alhamada TF, Azmah Hanim MA, Jung DW, Saidur R, Nuraini A, Hasan WZW

Nanomaterials (Basel), 2022 Oct 18;12(20).
PMID: 36296856 DOI: 10.3390/nano12203666

This article discusses the design and preparation of a modified MXene-based nanocomposite for increasing the power conversion efficiency and long-term stability of perovskite solar cells. The MXene family of materials among 2D nanomaterials has shown considerable promise in enhancing solar cell performance because of their remarkable surface-enhanced characteristics. Firstly, there are a variety of approaches to making MXene-reinforced composites, from solution mixing to powder metallurgy. In addition, their outstanding features, including high electrical conductivity, Young's modulus, and distinctive shape, make them very advantageous for composite synthesis. In contrast, its excellent chemical stability, electronic conductivity, tunable band gaps, and ion intercalation make it a promising contender for various applications. Photovoltaic devices, which turn sunlight into electricity, are an exciting new area of research for sustainable power. Based on an analysis of recent articles, the hydro-thermal method has been widely used for synthesizing MXene-based nano-composites because of the easiness of fabrication and low cost. Finally, we identify new perspectives for adjusting the performance of MXene for various nanocomposites by controlling the composition of the two-dimensional transition metal MXene phase.
Fulltext A Brief Review of the Role of 2D Mxene Nanosheets toward Solar Cells Efficiency Improvement

Alhamada TF, Azmah Hanim MA, Jung DW, Nuraini AA, Hasan WZW

Nanomaterials (Basel), 2021 Oct 15;11(10).
PMID: 34685175 DOI: 10.3390/nano11102732

This article discusses the application of two-dimensional metal MXenes in solar cells (SCs), which has attracted a lot of interest due to their outstanding transparency, metallic electrical conductivity, and mechanical characteristics. In addition, some application examples of MXenes as an electrode, additive, and electron/hole transport layer in perovskite solar cells are described individually, with essential research issues highlighted. Firstly, it is imperative to comprehend the conversion efficiency of solar cells and the difficulties of effectively incorporating metal MXenes into the building blocks of solar cells to improve stability and operational performance. Based on the analysis of new articles, several ideas have been generated to advance the exploration of the potential of MXene in SCs. In addition, research into other relevant MXene suitable in perovskite solar cells (PSCs) is required to enhance the relevant work. Therefore, we identify new perspectives to achieve solar cell power conversion efficiency with an excellent quality-cost ratio.

Filters

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links