Adhesion Technologies of Bio-Inspired Climbing Robots: A Survey

Climbing robots are special mobile robots proposed for engineering tasks such as surveillance and maintenance activities in human inaccessible areas. These robots comprise of responsive gaits, efficient adhesion mechanisms, actuators, and intelligent sensors. Conventional climbing robots have limitations of overweight, specific deployment issues, and flexibility. Bio-inspired climbing robots have the versatility because robots can take up specific feature of natural creatures. Adhesion methods of bio-inspired robots have been represented in this paper. Classifications of such robots are prepared from their adapted adherence. Adhesion techniques of animals and small insects are also overviewed. Resemblance of grasping technique between natural species and climbing robots is discussed. Finally, robots are compared from their design aspects and presented for searching better adhesion system of robots

Alumina-supported Mn(III) and Fe(III) complexes of tridentate Schiff base ligand having ONO-donor sites: Syntheses, characterization and olefin epoxidation study

Two new mononuclear Schiff base complexes, [MLCl(H2O)2] [M = Mn(III) or Fe(III); H2L = 2-phenoliminomethylphenol], have been prepared and characterized by elemental analysis, thermogravimetric analysis, UV-vis and FT-IR spectroscopy, cyclic voltammetry and ESI-MS analyses. Both complexes show excellent alkenes epoxidation activity and thus these complexes have been infused over neutral active alumina to prepare the heterogeneous catalysts. These catalysts are characterized by solid UV-vis and FT-IR spectroscopy, thermogravimetric and powder XRD and FE-SEM studies. Finally, the catalysts have been studied for the epoxidation of different types of olefins in presence of terminal oxidants (PhIO and t-BHP) and are easily recyclable