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Abstract. Introduction to Biosystems Engineering is a coherent, dynamic educational resource targeted at 1st- and 2nd-year university-level students. The chapters stimulate interest and curiosity across the breadth of Biosystems Engineering and provide an international perspective. Faculty anywhere in the world can select interesting and engaging chapters of local relevance. This resource will grow over time with chapters contributed by Biosystems Engineers around the world. While the inaugural chapters are aligned with six ASABE technical communities, contributions of new chapters across the full scope of ASABE technical communities are very welcome. See the Biosystems Engineering Textbook and Digital Library home page (https://www.asabe.org/BE) for more details.

General areas and chapters as of June, 2021, include:

--Energy Systems: Bioenergy Conversion Systems, Biogas Energy from Organic Wastes, Biodiesel from Oils and Fats, Baling Biomass

--Information Technology, Sensors, and Control Systems: Basic Microcontroller Use for Measurement and Control, Visible and Near Infrared Optical Spectroscopic Sensors for Biosystems Engineering, Data Processing in Biosystems Engineering

--Machinery Systems: Traction, Crop Establishment and Protection, Grain Harvest and Handling, Mechatronics and Intelligent Systems in Agricultural Machinery

--Natural Resources and Environmental Systems: Water Budgets for Sustainable Water Management, Water Quality as a Driver of Ecological System Health, Quantifying and Managing Soil Erosion on Cropland, Anaerobic Digestion of Agri-Food By-products, Measurement of Gaseous Emissions from Animal Housing

--Plant, Animal, and Facility Systems: Plant Production in Controlled Environments, Building Design for Energy Efficient Livestock Housing

--Processing Systems:Freezing of Food, Principles of Thermal Processing of Packaged Foods, Deep Fat Frying of Food, Irradiation of Food, Packaging

The entire textbook or individual chapters may be downloaded from https://vtechworks.lib.vt.edu/handle/10919/93254. It is also available as an at-cost print edition from Amazon at https://www.amazon.com/dp/1949373932.