Results 71 to 80 of about 24,012 (230)
Economic Analysis of Options for Food Aid Policy in Honduras [PDF]
economics, food policy, Latin America, nutrition, Agricultural and Food Policy, Food Consumption/Nutrition/Food Safety, Food Security and Poverty,
Boland, Michael A., Brautigam, Alena
core +1 more source
Revista Brasileira de Ciência do Solo, 2005 A possibilidade de utilização de normas obtidas em determinado local, para diferentes condições de clima e solo, pode conferir aos métodos de diagnose do estado nutricional um caráter de universalidade. Neste sentido, por meio da aplicação dos métodos: Sistema Integrado de Diagnose e Recomendação (DRIS), DRIS modificado (M-DRIS) e Diagnose da ...
Gualter Guenther Costa da Silva +3 more
openaire +1 more source
Using Thermodynamics and Microstructure to Mitigate Overfitting in Pellet Reduction Models
steel research international, EarlyView.A in time and space discretized, thermodynamically sound model for direct reduction of iron oxide pellets is described. The number of fitting parameters is drastically reduced compared to existing models. Nevertheless, fitting kinetic parameters based on conversion degree data alone leads to overfitting, which can be mitigated by correlating the ...
Ömer K. Büyükuslu +4 more
wiley +1 more source
steel research international, EarlyView.The melting behavior of hot briquetted iron (HBI) is observed and compared with FactSage computing simulation. When using HBI in an electric arc furnace process, a proper design of intrinsic carbon content in HBI, charging ratio of HBI, and addition of lime are proposed to be essential to control the slag volume, maintain slag basicity, and mitigate ...
Min Joo Lee, Joo Hyun Park
wiley +1 more source
DRI Factsheet No. 11: Web Archiving and the DRI
Guidance on the creation of web archives, and the preparation of archive files for publication in the DRI.
openaire +1 more source
steel research international, EarlyView.The study presents a dynamic zonal model for hydrogen plasma smelting reduction (HPSR) in direct current arc furnaces, predicting time‐dependent behavior of metal, slag, and off‐gas. The study considers various industrial scenarios to quantify energy demand, hydrogen utilization, degree of reduction, and other operational sensitivities.
Tristan K. Wickham +4 more
wiley +1 more source
steel research international, EarlyView.The study investigates the reoxidation behavior of DRI pellets (Midrex and H2‐reduced) under realistic conditions, considering the test parameters of temperature, humidity, storage duration, particle size (including fine fraction), and container geometry. The samples are analyzed based on mass changes.
Bernd Taferner +4 more
wiley +1 more source
Can Food Stamps Do More to Improve Food Choices? An Economic Perspective [PDF]
Food stamp recipients, like other Americans, struggle with nutrition problems associated with choice of foods, as well as amounts. This series of Economic Information Bulletins compiles evidence to help answer the question of whether the Food Stamp ...
Andrews, Margaret S. +10 more
core +1 more source
steel research international, EarlyView.The experiments and simulations demonstrate that, in general, alternative carbon sources can decrease fossil CO2 without adversely impacting EAF process and product. High plastics and tires ratios cause unsafe conditions and poor slag foaming. Hydrogen in EAF burners decreases CO2 but increases water vapor, which can raise the hydrogen content in ...
Ismael Matino +7 more
wiley +1 more source