We have reached a point in time where the antediluvian ways have either been completely forgotten or are simply ignored for loss of necessity. This fast progressing world owes everything to the researchers and innovators responsible for the ever changing paradigm of technology. My capability as an engineer, however, to be truly able to understand how the various design aspects behind each innovation, helping me ponder over the numerous ways in which it can be implemented for technological betterment
A resurfacing procedure is considered to be any treatment that removes a layer of skin or layers of skin. Resurfacing treatments can include and are not limited to micro-dermabrasion or the more intense dermabrasion, laser resurfacing with different types of laser or intense pulsed lights and chemical peels ranging in different depths (Philips & Hughes, 1998). After any type or resurfacing procedure, whether it would be a chemical peel or micro-dermabrasion, collagen formation is activated in the
INTRODUCTION In 1906, L.D Forest invented the first vacuum tube which was used for rectifying, amplifying and switching electrical signals [1]. Vacuum tubes had played an important role in the development of electronics before the advent of semiconductor transistor. In 1947, J. Brattain and W. Bardeen invented the first point contact junction transistor [2,3] and in 1948 W. Schokley proposed bipolar junction transistor (BJT) [4]. In 1951, W. Shockley invented junction field-effect transistor (JFET)
Chapter-2 Efficient ZnO NPs catalyzed Friedlander annulations in the synthesis of diverse quinolin-2(1H)-ones 2.1.1 INTRODUCTION OF QUINOLINONES AND QUINOLINES The quinolinone and quinoline ring is highly prevalent in natural compounds. There are synthetic and potential agents, which show various pharmacological properties (Priya et al., 2012). Quinolinones are important structural intermediates for synthesis of functionalized quinolines (Baston et al., 2000). Quinolines have demonstrated various