A novel method for performance estimation of photovoltaic module without setting reference condition

Author(s):  
Yunpeng Zhang ◽  
Peng Hao ◽  
Hao Lu ◽  
Tingkun Gu ◽  
Ming Yang
2013 ◽  
Vol 36 ◽  
pp. 1222-1231 ◽  
Author(s):  
Ababacar Ndiaye ◽  
Cheikh M.F. Kébé ◽  
Pape A. Ndiaye ◽  
Abdérafi Charki ◽  
Abdessamad Kobi ◽  
...  

Author(s):  
Azadeh Maroufmashat ◽  
Farid Seyyedyn ◽  
Ramin Roshandel ◽  
Mehrdad Boroushaki

Hydrogen is a flexible energy carrier and storage medium and can be generated by electrolysis of water. In this research, hydrogen generation is maximized by optimizing the optimal sizing and operating condition of an electrolyzer directly connected to a PV module. The method presented here is based on Particle swarm optimization algorithm (PSO). The hydrogen, in this study, was produced using a proton exchange membrane (PEM) electrolyzer. The required power was supplied by a photovoltaic module rated at 80 watt. In order to optimize Hydrogen generation, the cell number of the electrolyser and its activity must be 9 and 3, respectively. As a result, it is possible to closely match the electrolyzer polarization curve to the curve connecting PV system’s maximum power points at different irradiation levels. PSO is a novel method in optimization inspiring from observation of bird flocking and fish schooling. Comparing to other optimization method, not only PSO is more efficient and require lower functions of evaluations, but it leads to better results, as well.


2013 ◽  
Vol 115 ◽  
pp. 21-28 ◽  
Author(s):  
Yong Sin Kim ◽  
Sung-Mo Kang ◽  
Bruce Johnston ◽  
Roland Winston

Solar Energy ◽  
2021 ◽  
Vol 224 ◽  
pp. 327-340
Author(s):  
Yunpeng Zhang ◽  
Jialei Su ◽  
Chen Zhang ◽  
Zhe Lang ◽  
Ming Yang ◽  
...  

Author(s):  
M.A. Gregory ◽  
G.P. Hadley

The insertion of implanted venous access systems for children undergoing prolonged courses of chemotherapy has become a common procedure in pediatric surgical oncology. While not permanently implanted, the devices are expected to remain functional until cure of the primary disease is assured. Despite careful patient selection and standardised insertion and access techniques, some devices fail. The most commonly encountered problems are colonisation of the device with bacteria and catheter occlusion. Both of these difficulties relate to the development of a biofilm within the port and catheter. The morphology and evolution of biofilms in indwelling vascular catheters is the subject of ongoing investigation. To date, however, such investigations have been confined to the examination of fragments of biofilm scraped or sonicated from sections of catheter. This report describes a novel method for the extraction of intact biofilms from indwelling catheters.15 children with Wilm’s tumour and who had received venous implants were studied. Catheters were removed because of infection (n=6) or electively at the end of chemotherapy.


GeroPsych ◽  
2012 ◽  
Vol 25 (4) ◽  
pp. 235-245 ◽  
Author(s):  
Katja Franke ◽  
Christian Gaser

We recently proposed a novel method that aggregates the multidimensional aging pattern across the brain to a single value. This method proved to provide stable and reliable estimates of brain aging – even across different scanners. While investigating longitudinal changes in BrainAGE in about 400 elderly subjects, we discovered that patients with Alzheimer’s disease and subjects who had converted to AD within 3 years showed accelerated brain atrophy by +6 years at baseline. An additional increase in BrainAGE accumulated to a score of about +9 years during follow-up. Accelerated brain aging was related to prospective cognitive decline and disease severity. In conclusion, the BrainAGE framework indicates discrepancies in brain aging and could thus serve as an indicator for cognitive functioning in the future.


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