Browse 769,100+ sketch wallpaper stock illustrations and vector graphics available royalty-free, or start a new search to explore more great stock images and vector art. Grainy blue frame with spray ...

Abstract: In this paper, circular area movement optimization (CAMO), a novel global search algorithm, and its hybridization with the pattern search method (PSM) are proposed to solve the multimodal ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

Abstract: This paper presents the design of a microstrip line-fed substrate-integrated waveguide (SIW) ring antenna designed to excite a sixth-order circularly polarized conical radiation pattern.

This repository contains 5 different pattern-making programs written in Python. Each program prints a unique pattern using loops, making it a great resource for beginners to practice Python logic.

Preface / Rachel Moss, Felicity O'Mahony and Jane Maxwell -- Bernard Meehan : a personal recollection / Peter Fox -- Hagiography or history? : early medieval approaches to establishing origin and ...

Imagine taking an Olympic swimming pool and flipping it on its head. That’s how tall Hadlow Tower is – an extraordinary English castle that stands over 53 metres tall. It is the tallest Victorian ...

At the University of North Carolina at Asheville, the day-to-day outfits seen around campus reflect the many personalities of the students and faculty. While fashion may not always be considered an ...