A Simplistic Analytical Model for Hydrogen Surface Coverage Under the Influence of Various Surface-Related Processes and Ion Bombardment

The paper describes a simple analytical model that allows the calculation of hydrogen surface coverage under the influence of several processes that can co-occur during the ion-beam bombardment/sputter analysis of a sample surface, in particular during analysis by secondary ion mass spectrometry (SIMS). The model considers processes of dissociative adsorption, desorption, absorption from the surface into the sample volume, and removal by ion bombardment. After describing the model, we provide some examples of its practical applications for interpretation of the experimental results obtained during in situ SIMS studies of hydrogen interaction with the hydrogen-storage alloys TiFe, Zr2Fe, and with nickel. In the examples, some quantitative characteristics of surface-related processes involving hydrogen, such as hydrogen sputtering rate, activation energy of hydrogen desorption and absorption, have been successfully determined using various model approaches

Agricultural and Economywide Effects of the War in Ukraine

The war in Ukraine caused export disruptions that jeopardize the availability and affordability of agricultural and food products around the world. This research employs a computable general equilibrium modeling framework to understand the global economic effects of warinduced agricultural export declines under varying success of alternate transport from Ukraine given inability to export through the Black Sea. Results show net global welfare effects ranging from more than $5 billion to nearly$20 billion depending on the success of transport through European Solidarity Lanes

The Future of (Ag-) Trade and Trade Governance in Times of Economic Sanctions and Declining Multilateralism

Theme Day Session Summary. This IATRC Policy Brief summarizes the outcomes of the Annual Meeting Theme Day presentations

The Future of (Ag-) Trade and Trade Governance in Times of Economic Sanctions and Declining Multilateralism

Theme Day Session Summary. This IATRC Policy Brief summarizes the outcomes of the Annual Meeting Theme Day presentations