Recent developments and advancements in solar air heaters: A detailed review

This is the final version. Available from MDPI via the DOI in this record. Data Availability Statement: Not applicable.The scientific literature extensively mentions the use of a solar air heater (SAH) by utilizing solar energy for heating purposes. The poor heat-transfer rate of an SAH with a flat plate is caused by developing a laminar sub-layer near the heated base plate. The plate temperatures improve significantly, resulting in losses and a decrease in performance. The passive approach entails the placement of fins/turbulators/pouring material/ribs to the surface where the boundary layer forms to disrupt it. Artificially roughened SAH for gathering and efficiently using solar radiations for thermal purposes is extensively described in the literature. This paper includes a thorough literature overview of the history, basics, roughness evolution, forms of SAH, and recent breakthroughs in thermal performance improvement techniques for SAH compiled by several researchers. This paper uses a comparative evaluation of several roughness geometries and kinds of SAH to uncover thermohydraulic performance factors that may be considered in future research to pick the optimal configuration

Re-examining the Unified Theory of Acceptance and Use of Technology (UTAUT): Towards a Revised Theoretical Model

YesBased on a critical review of the Unified Theory of Acceptance and Use of Technology (UTAUT), this study first formalized an alternative theoretical model for explaining the acceptance and use of information system (IS) and information technology (IT) innovations. The revised theoretical model was then empirically examined using a combination of meta-analysis and structural equation modelling (MASEM) techniques. The meta-analysis was based on 1600 observations on 21 relationships coded from 162 prior studies on IS/IT acceptance and use. The SEM analysis showed that attitude: was central to behavioural intentions and usage behaviours, partially mediated the effects of exogenous constructs on behavioural intentions, and had a direct influence on usage behaviours. A number of implications for theory and practice are derived based on the findings

2013 WSES guidelines for management of intra-abdominal infections

Peer reviewe

Mining allelic diversity associated with drought and salinity tolerance in reference subset of chickpea germplasm collections

Drought, salinity, and extreme variations in temperature are the major abiotic constraints to chickpea production worldwide. With support from GCP, we developed a global composite collection (3,000 accessions), profiled its structure and diversity using SSRs (50), and a reference set of 300 accessions (211 chickpea mini core + 89 additional diverse accessions) identified using DARwin-5.0. This reference set captured 78% (1403 alleles) of the 1791 alleles of the composite collection. Currently, we are saturating this reference set with additional SSRs and have plans to survey this reference set using DArT markers once the DArT technology is established at ICRISAT. Techniques for screening for drought (root traits) and salinity tolerance have been standardized. Published studies revealed genetic variability for traits associated with drought and salinity tolerance among chickpea mini core germplasm accessions. We plan to extensively evaluate this reference set (300 accessions) for drought and salinity tolerance besides agronomic and quality traits and associate this variation with allelic diversity present in the reference subset. The genetically diverse accessions with contrasting response to drought and salinity will be identified for diverse uses in chickpea genomics and breeding