China
Africa
Explore chapters and articles related to this topic
Lighting
Published in Stephen A. Roosa, Steve Doty, Wayne C. Turner, Energy Management Handbook, 2020
Eric A. Woodroof, Stan Walerczyk, Fred Hauber
Foot-lambert: Unit of luminance. One footlambert is equal to 1/π candelas per ft2 or 3.426 candelas per m2. Named after Johann Heinrich Lambert (1728-1777), a Swiss-German mathematician, physicist and astronomer.
Visual Displays
Published in Julie A. Jacko, The Human–Computer Interaction Handbook, 2012
Christopher M. Schlick, Carsten Winkelholz, Martina Ziefle, Alexander Mertens
The unit of luminance is lumen per steradian per square meter or candela per square meter (cd/m2). In some cases, the unit foot-lambert (fL) is used to describe luminance (1 fL = 3426 cd/m2).
A preliminary census of copies of the first edition of Newton’s Principia (1687)
Published in Annals of Science, 2020
Mordechai Feingold, Andrej Svorenčík
Provenance: (tp) Early eighteenth century autograph L. T. Corfrii Maj., crossed out. Stamped with his coat of arms. Lambert Friedrich von Corfey (1668–1733).(tp) handwritten ex-libris Collegii Coloniensis Societatis Jesu 1715.The copy was seized in Köln, Germany, during the Revolution and entered into the Bibliothèque nationale between 1792 and 1803.
Fixed time stability and optimal stabilisation of discrete autonomous systems
Published in International Journal of Control, 2023
The form of the Lambert W function was first introduced by Euler (1783) as a special case of the Lambert transcendental equation (Lambert, 1758). Although the Lambert W function cannot be expressed by elementary functions, it provides a useful closed-form expression for the solution to a large-class of transcendental functions involving exponentials. In particular, it is widely used in circuit analysis (see Batzelis et al., 2014; Bernardini et al., 2016) as well as system thermodynamics (Shafee, 2007), where it is used to define the system entropy.