Which variables are essential for renewable energies?

Essential Variables are defined as a minimal set of variables that explain the state of the system.They are crucial for predicting its developments, and support metrics that measure its evolution.The variables should be relevant to meet requirements of stakeholders and be technically and economically dozy dinkum moppet feasible for systematic obser

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Visual quality analysis using the Chinese Catquest-9SF scale following different spherical aberration IOL implantation

PurposeBased on the Chinese version of the Catquest-9SF scale, the contrast sensitivity meter and wavefront aberrometer were used to evaluate the visual quality of cataract patients implanted with different spherical aberrations IOL.DesignRetrospective Observational Study.MethodsPatients who had the lens implantation in our department from January

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