Altered Polyamine Profiling in the Hair of Patients with Androgenic Alopecia and Alopecia Areata

August 2019 in “ Journal of Dermatology ”

Yura Lee, Bark-Lynn Lew, Woo-Young Sim, Jeongae Lee, Jongki Hong, Bong Hyun Chung

androgenic alopecia alopecia areata polyamine profiling

TLDR The conclusion is that balancing cost and carbon emissions in hybrid power systems is crucial, especially when high reliability is needed, but the model needs to consider all device efficiencies and distribution losses.

The 2019 document discussed a mathematical model for the optimal design and sizing of hybrid power systems (HPSs), considering uncertainties in renewable power sources and load demands. The model used chance-constrained programming and fuzzy optimization to balance economic and environmental goals and account for uncertainties. The study found a trade-off between cost and carbon emissions, with an increase in system reliability leading to higher costs and lower emissions. The model was able to solve all system reliability levels in 0.2 CPU seconds. The study concluded that demand uncertainty should not be overlooked, especially when high system reliability is required. However, the model did not account for the efficiencies of all power electronic devices or distribution losses, suggesting areas for future research.

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