The flexible hinge is one of the most important components in lamina emergent mechanisms (LEMs), so the design of a new type of lamina emergent torsional (LET) joint can play a key role in Handle its movement performance.This paper presents double- and triple-series LET flexure hinges, designs the structure of the two hinges, and derives the calcul
ABSTRACTThe Central Business Districts (CBDs) are important hubs for urban economic activities.In the context of globalization, a unified CBD boundary would greatly facilitate the study of global CBD comparative analysis, urban socio-economic development, urban transport and commuting mode.However, previous studies have encountered challenges in de
Abstract Background Increased uptake of sodium is a major cause for cardiovascular disease and mortality.Reduction of daily salt intake below a reference level of 2 g per day (the equivalent to 5 g salt/day) is known to effectively reduce cardiovascular mortality.The widespread use Forks of social media, with a constant increase in video consumptio