Machine Systems/Agricultural Systems
This category focuses on the design of innovative eco-friendly agricultural equipment, or agricultural practices. These topics include feed processing and handling equipment for animal agriculture, construction and mining, forestry, lawn and ground care, and robotic applications in food and fiber production and processing. Students studying in fields related to agricultural sciences or engineering  may be interested in submitting to this category.

Biological Engineering and Food Processing
This category covers a diverse range of topics related to physics, chemistry and biological sciences and engineering to improve processes, handling, storage and quality of production and product development. Innovative design of materials and unit operations used in food, pharmaceutical and biochemical industries are the main stream focus of the field. Additional studies include treatment of food and chemical residues and their suitability to generate byproducts for composting and energy production. Students studying in fields related to food processing, biological, or chemical engineering may be interested in submitting to this category.

Environmental & Natural Resources Engineering 
This category covers a diverse range of topics related to our management of water, air, soil and other resources. A wide research interest encompasses water quality or water resource studies, livestock waste management, water management in agriculture, air or odor studies, ecology or environmental resource studies. Students studying in fields related to environmental sciences or engineering may be interested in submitting to this category.

Bio-energy 
This category covers a diverse range of topics related to the development of renewable energy sources. The focus of such research can include feedstock development and logistics, processing and conversion technology, microbiological engineering, process economics, environmental impact analysis, or transportation systems design. A few prominent examples of bio-energy are ethanol, biodiesel, biogas, or photosynthetic fuel cells. Students studying in fields related to renewable energy studies or engineering may be interested in submitting to this category.