Cardiac looping is a vital morphogenetic process that transforms the initially straight heart tube into a curved tube normally directed toward the right side of the embryo. While recent work has brought major advances in our understanding of the genetic and molecular pathways involved in looping, the biophysical mechanisms that drive this process have remained poorly understood. This paper exam...

Chemical looping combustion (CLC) is a novel concept that transfers oxygen from air to fuel using an carrier circulates between reactor and reactor. Thus, the products, H2O CO2, are obtained in separate flow, ideally, pure CO2 gas stream after condensation of H2O. Consequently, CLC has unique potential for avoiding high costs energy penalties capture. Further, NO emissions can potentially be av...

Waste heat recovery from high temperature slags represents the latest potential way to remarkably reduce the energy consumption and CO2 emissions of the steel industry. The molten slags, in the temperature range of 1723–1923 K, carry large amounts of high quality energy. However, the heat recovery from slags faces several fundamental challenges, including their low thermal conductivity, inside ...

The techno-economic aspects of coal drying with cost effective waste heat recovery mechanism is one of the challenging issues faced while using lignite or high ash brown coal for direct combustion in coal fired thermal power plant. Coal being hygroscopic in nature, re-adsorbs considerable moisture even after conventional drying post wet coal washing condition affecting boiler performance. Parti...

Comment 1: “This article presents some interesting conclusions regarding the chemical mixing state of particles produced from the combustion of pulverised coal. It would be useful, however, to expand the discussion to cover differences between the single particle mass spectra reported here and those obtained for power generation-related coal combustion and domestic coal combustion in other prev...

In this work, an integrated conversion system of coal to ammonia (NH3) is developed with the objectives total energy efficiency maximization and process simplification. The integrates drying, chemical looping hydrogen production, cryogenic nitrogen separation, NH3 synthesis, power generation. Due integration, exergy destruction from each individual process, as well whole system, can be reduced ...

Globally, coal-fired power plants are the largest industrial source of carbon dioxide (CO2). CO2 emissions from flue gas have potential for direct mineralization with electrostatic precipitator fly ash particles in the field. Demonstration scale accelerated mineral carbonation (AMC) studies were conducted at the Jim Bridger Power Plant, a large coal fired power plant located in Wyoming, USA. AM...

Robust Ru nanoparticles created by exsolution enhanced the chemical looping methane reforming performance for stable syngas production and CO2 splitting

The geometric phase is shown to control the outcome of an ultracold chemical reaction. The control is a direct consequence of the sign change on the interference term between two scattering pathways (direct and looping), which contribute to the reactive collision process in the presence of a conical intersection (point of degeneracy between two Born-Oppenheimer electronic potential energy surfa...