Intended for good productivity and perfect operation of the solar power grid a failure-free system is required.Therefore,thermal image processing with the thermal camera is the latest non-invasive(without manual conta...Intended for good productivity and perfect operation of the solar power grid a failure-free system is required.Therefore,thermal image processing with the thermal camera is the latest non-invasive(without manual contact)type fault identification technique which may give good precision in all aspects.The soiling issue,which is major productivity affecting factor may import from several reasons such as dust on the wind,bird mucks,etc.The efficient power production sufferers due to accumulated soil deposits reaching from 1%–7%in the county,such as India,to more than 25%in middle-east countries country,such as Dubai,Kuwait,etc.This research offers a solar panel soiling detection system built on thermal imaging which powers the inspection method and mitigates the requirement for physical panel inspection in a large solar production place.Hence,in this method,solar panels can be verified by working without disturbing production operation and it will save time and price of recognition.India ranks 3rd worldwide in the usage use age of Photovoltaic(PV)panels now and it is supported about 8.6%of the Nation’s electricity need in the year 2020.In the meantime,the installed PV production areas in India are aged 4–5 years old.Hence the need for inspection and maintenance of installed PV is growing fast day by day.As a result,this research focuses on finding the soiling hotspot exactly of the working solar panels with the help of Principal Components Thermal Analysis(PCTA)on MATLAB Environment.展开更多
The synthesis and characterization of two new aluminate（Ⅲ） complexes with general formula K[AlCl3X] are reported. These compounds derived from aluminate trichloride and related salts. Potassium trichlorothiocyanoal...The synthesis and characterization of two new aluminate（Ⅲ） complexes with general formula K[AlCl3X] are reported. These compounds derived from aluminate trichloride and related salts. Potassium trichlorothiocyanoaluminate, PCTA, and potassium trichlorocyanatoalu-minate, PCCA, are two new ionic aluminate complexes. They can be easily synthesized in a nearly quantitative yield by using the direct reaction of AlCl3 and KX. The complexes were characterized by physico-chemical and spectroscopic methods. Theoretical calculations have been used for the extraction of structural and spectroscopic data of these new synthesized complexes. The antibacterial activities of such compounds were studied against the Staphylococcus aureus, Escherichia coli, Staphylococcus Epidermidis, Estreptococo B and Shigella.展开更多
Increases of QTc interval dispersion has been reported to be a marker for ischemia. The effects of coronary artery revascularization on QTc dispersion have not been previously reported. We studied QTc in 34 patients ...Increases of QTc interval dispersion has been reported to be a marker for ischemia. The effects of coronary artery revascularization on QTc dispersion have not been previously reported. We studied QTc in 34 patients with a mean age of 55 years (range 31～72) with coronary artery disease who underwent successful, uncomplicated coronary angioplasty (PTCA). We analysed 12 lead ECG 8 recorded 1 week before. 1 day and 1 week after the PTCA. QT intervals were measured by an observer who was blinded to the time the ECG was recorded, and to all other clinical information. QT intervals were corrected using Bazett's formula. QTc interval dispersion was calculated as the difference between the maximum and minimum of the 12 lead ECG QTc intervals. The QTc dispersion in a day (35±13)ms and a week (34±13)ms after PTCA was significant less reductive than the QTc dispersion (64±16)ms before PTCA (P<0 05). Successful revascularization by PTCA results in a significant reduction in QTc interval dispersion which persists over time. It may be a mechanism of benefit of PTCA therapy. Whether this measurement would predict restenosis in such patients requires further study.展开更多
文摘Intended for good productivity and perfect operation of the solar power grid a failure-free system is required.Therefore,thermal image processing with the thermal camera is the latest non-invasive(without manual contact)type fault identification technique which may give good precision in all aspects.The soiling issue,which is major productivity affecting factor may import from several reasons such as dust on the wind,bird mucks,etc.The efficient power production sufferers due to accumulated soil deposits reaching from 1%–7%in the county,such as India,to more than 25%in middle-east countries country,such as Dubai,Kuwait,etc.This research offers a solar panel soiling detection system built on thermal imaging which powers the inspection method and mitigates the requirement for physical panel inspection in a large solar production place.Hence,in this method,solar panels can be verified by working without disturbing production operation and it will save time and price of recognition.India ranks 3rd worldwide in the usage use age of Photovoltaic(PV)panels now and it is supported about 8.6%of the Nation’s electricity need in the year 2020.In the meantime,the installed PV production areas in India are aged 4–5 years old.Hence the need for inspection and maintenance of installed PV is growing fast day by day.As a result,this research focuses on finding the soiling hotspot exactly of the working solar panels with the help of Principal Components Thermal Analysis(PCTA)on MATLAB Environment.
基金the research Office of Azad Islamic University,Ardebil,for supporting this work
文摘The synthesis and characterization of two new aluminate（Ⅲ） complexes with general formula K[AlCl3X] are reported. These compounds derived from aluminate trichloride and related salts. Potassium trichlorothiocyanoaluminate, PCTA, and potassium trichlorocyanatoalu-minate, PCCA, are two new ionic aluminate complexes. They can be easily synthesized in a nearly quantitative yield by using the direct reaction of AlCl3 and KX. The complexes were characterized by physico-chemical and spectroscopic methods. Theoretical calculations have been used for the extraction of structural and spectroscopic data of these new synthesized complexes. The antibacterial activities of such compounds were studied against the Staphylococcus aureus, Escherichia coli, Staphylococcus Epidermidis, Estreptococo B and Shigella.
文摘Increases of QTc interval dispersion has been reported to be a marker for ischemia. The effects of coronary artery revascularization on QTc dispersion have not been previously reported. We studied QTc in 34 patients with a mean age of 55 years (range 31～72) with coronary artery disease who underwent successful, uncomplicated coronary angioplasty (PTCA). We analysed 12 lead ECG 8 recorded 1 week before. 1 day and 1 week after the PTCA. QT intervals were measured by an observer who was blinded to the time the ECG was recorded, and to all other clinical information. QT intervals were corrected using Bazett's formula. QTc interval dispersion was calculated as the difference between the maximum and minimum of the 12 lead ECG QTc intervals. The QTc dispersion in a day (35±13)ms and a week (34±13)ms after PTCA was significant less reductive than the QTc dispersion (64±16)ms before PTCA (P<0 05). Successful revascularization by PTCA results in a significant reduction in QTc interval dispersion which persists over time. It may be a mechanism of benefit of PTCA therapy. Whether this measurement would predict restenosis in such patients requires further study.
