Water is the most abundant molecular compound on Earth: it is omnipresent and essential for life. Water is a very stable compound because of its high formation enthalpy of 286 kJmol , and thus the splitting of water into dihydrogen and dioxygen is a high-energy process—the thermal splitting of water requires temperatures above 2500 8C, and is still incomplete. Although the electrochemical split...

a constitutive model based on two–dimensional unstructured galerkin finite volume method (gfvm) is introduced and applied for analyzing nonlinear behavior of cracked concrete structures in equilibrium condition. the developed iterative solver treats concrete as an orthotropic nonlinear material and considers the softening and hardening behavior of concrete under compression and tension by using...

CONTEXT Relationships between socio-environmental factors and obesity are poorly understood due to a dearth of longitudinal population-level research. The objective of this analysis was to examine 45-year trends in time-use, household management (HM) and energy expenditure in women. DESIGN AND PARTICIPANTS Using national time-use data from women 19-64 years of age, we quantified time allocati...

At the HERA collider, electrons (positrons) and protons are collided at a center of mass energy of about √ s = 318GeV (300GeV before 1998), directly probing new physics in eq interactions at the highest energies. Since 1994, integrated luminosities of about L = 115pb−1 in e+p and L = 15pb−1 in ep scattering have been collected by the two experiments H1 and ZEUS. The most recent data collected i...

Microgrid is a new power system concept consisting of small-scale distributed energy resources; storage devices and loads. It is necessary to employ a simplified model of microgrid in the simulation of a distribution network integrating large-scale microgrids. Based on the detailed model of the components, an equivalent model of microgrid is proposed in this paper. The equivalent model comprise...

Introduction: Greenhouse gas (GHG) emissions have caused environmental effects. Food production is one of the sources of GHGs. This study aimed to suggest dietary scenarios for decreasing GHG emissions. Materials and Methods: GHG emissions in the target population of Urmia city, Northwest Iran, were investigated using a modeling approach. Three dietary scenarios were modeled and analyzed to ev...