Advances in the synthesis of nearly monodisperse colloidal nanoparticles have made it possible
to fabricate crystalline arrays of nanoparticles (known popularly as Colloidal Nano Crystalline
Arrays (NCAs)) with lattice parameters close to the wavelength of light. Light travelling through
such crystals experiences a period variation of refractive index, analogous to periodic potential
energy of an electron in an atomic crystal. This variation in refractive index in three dimensions
Hybrid lead halide perovskites (LHPs) have been emerged as an efficient material for superior solar energy conversion during the last decade, due to their following unique properties: large absorption coefficient in the visible, low charge carrier (electron/hole) recombination rates, and sufficiently long carrier diffusion length.1-3 Understanding fundamental photophysics behind such high power conversion efficiency requires a thorough understanding of the following phenomena: dissociation excitons to free carriers, hot carriers cooling, and recombination dynamics.
Learning and cognition in radar applications
Protein post-translational modifications (PTMs) refer to the covalent addition of functional groups onto a protein. They offer another dimension to the functional diversity of the proteins and allow them to do chemistry that is otherwise difficult. Thus, a deeper understanding on the regulatory mechanism of different PTMs can provide critical insights into various underlying cellular processes. In this talk, I will share two PTM-related stories from a chemical biology standpoint.
Structure and function of proteins in aqueous medium can be altered by the presence of cosolvents such as salts or osmolytes (osmoytes: small organic compounds which maintain cellular osmotic stress). Denaturing osmolytes such as urea or denaturing salts such as guanidinium chloride (GdmCl) destabilize the functional conformations of the cellular proteins. In contrast, protein protective osmolytes such as trimethylamine N-oxide (TMAO) stabilize proteins’ native structures. In cellular environment, proteins are exposed to mixtures of many cosolvents.
Carbon emission is one of the most important challenges of the 21st century. A significant source of carbon emission is the road freight sector. This talk will cover some of the research activities in Sustainable Road Freight with the aim of reducing carbon emission. The second part of the talk will explain a level 3 autonomous driving technology called Cooperative Adaptive Cruise Control. Design of a Fault Tolerant Cooperative Adaptive Cruise Control will also be covered.
In sensor networks, the absence of infrastructure mandates the use of ad-hoc network architectures. In these architectures, nodes are required to route data to gateway nodes over a multi-hop network. In the first half of the talk, Dr. Sunny will present a unified framework that can be used to compare different deployment scenarios, and provide a means to design efficient large-scale energy harvesting multi-hop wireless sensor networks.