Erosional cyclic steps governed by plunge pool erosion: A parametric study based on field, laboratory, and model data

Author(s):  
Xin Zeng ◽  
Astrid Blom ◽  
Matthew J. Czapiga ◽  
Chenge An ◽  
Gary Parker ◽  
...  
2020 ◽  
Vol 19 (4) ◽  
pp. 197-205
Author(s):  
He Ding ◽  
Xixi Chu

Abstract. This study aimed to investigate the relationship of employee strengths use with thriving at work by proposing a moderated mediation model. Data were collected at two time points, spaced by a 2-week interval. A total of 260 medical staff completed strengths use, perceived humble leadership, self-efficacy, and thriving scales. The results of path analysis showed that strengths use is positively related to thriving, and self-efficacy mediates the relationship of strengths use with thriving. In addition, this study also found perceived humble leadership to positively moderate the direct relationship of strengths use with self-efficacy and the indirect relationship of strengths use with thriving via self-efficacy. This study contributes to a better understanding of how and when strengths use affects thriving.


2020 ◽  
Vol 2 (1) ◽  
pp. 19-24
Author(s):  
Sakhr Mohammed Sultan ◽  
Chih Ping Tso ◽  
Ervina Efzan Mohd Noor ◽  
Fadhel Mustafa Ibrahim ◽  
Saqaff Ahmed Alkaff

Photovoltaic Thermal Solar Collector (PVT) is a hybrid technology used to produce electricity and heat simultaneously. Current enhancements in PVT are to increase the electrical and thermal efficiencies. Many PVT factors such as type of absorber, thermal conductivity, type of PV module and operating conditions are important parameters that can control the PVT performance. In this paper, an analytical model, using energy balance equations, is studied for PVT with an improved parallel flow absorber. The performance is calculated for a typical sunny weather in Malaysia. It was found that the maximum electrical and thermal efficiencies are 12.9 % and 62.6 %, respectively. The maximum outlet water temperature is 59 oC.


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