As an Extension specialist for more than seven years, I have had the privilege of working with producers and stakeholders throughout the Midwest. In addition to environmental management topics such as air quality, manure management, and wastewater treatment, my Extension activities have included agricultural structures, ventilation and insulation, energy analysis, and precision agriculture. Please do not hesitate to contact me with questions or concerns—I make every effort to respond within 24 hours.
Yang, X., Nafchi, A., Brennan, J., Mehan, S., Vandermark, L., Sellars, S., Smart, A., Chang, Y., Wang, Y. (2025). Protecting Your Data: The Role of Authentication and Encryption in Agricultural Cybersecurity, SDSU Extension.
Nafchi, A., Smart, A., Brennan, J., Sellars, S., Vandermark, L., Yang, X., Mehan, S. (2025). Cybersecurity Planning: Securing the Future, SDSU Extension.
Brennan, J., Vandermark, L., Mehan, S., Nafchi, A., Sellars, S., Yang, X. (2025). Be Cyber Aware: Text Message Cyber-Attacks (SMS Phishing - Smishing), SDSU Extension.
Yang, X., Nafchi, A., Brennan, J., Mehan, S., Sellars, S., Vandermark, L. (2024). Choosing the Right Wireless Network Technologies for Agricultural IoT Applications. SDSU Extension.
Yang, X., Nafchi, A. M., Mehan, S. (2024). Where Could Cyberattacks Occur in a Precision Agriculture System? An Outlook on the System Breakup. SDSU Extension.
Brennan, J., Vandermark, L., Sellars, S., Mehan, S., Nafchi, A. M., Yang, X. (2024). The Growing Threat of Cyber Attacks in Agriculture. SDSU Extension.
Nafchi, A., Smart, A, Yang, X., Mehan, S., Brennan, J. (2024). Cybersecurity Vulnerabilities in Precision Agriculture. SDSU Extension.
Mehan, S., Nafchi, A., Yang, X., Vandermark, L., Brennan, J., Mehan, S., Sellars, S. (2024). Ag Cybersecurity and Social Engineering 101. SDSU Extension.
Mehan, S., Nafchi, A., Yang, X., Sellars, S., Vandermark, L., Brennan, J., Mehan, S. (2024). What Should You Do Before or After Any Cybersecurity Breaches? SDSU Extension.
Sellars, S., Nafchi, A., Mehan, S., Vandermark, L., Brennan, J., Yang, X. (2024). Cyber Insurance for Agriculture. SDSU Extension.
Yang, X., Anderson, G. (2023). Post-snowstorm Building Inspection and Snow Removal. SDSU Extension.
Fronehlich, K., Yang, X. (2023). Sheep Facilities and Moisture. SDSU Extension.
Yang, X., Samuel, R., Thaler, R. (2023). Particle Size of Bioaerosols in Swine Barns. Pork Information Gateway.
Yang, X., Anderson, G. (2022). Wind Damage to Pole Barns: Things to Know. SDSU Extension.
Yang, X., Anderson, G., (2022). Inspecting Grain Bins after a Windstorm. SDSU Extension.
Yang, X., Samuel, R., Thaler, R. (2021). Air Hazards in Manure Pits. National Hog Farmers.
Yang, X., Thaler, R, Samuel, R. (2021). A Low-Cost Solution to Remote Monitoring of Animal Facility Thermal Environments. SDSU Extension.
Yang, X. (2020). Dry handling systems are being proactively discussed for livestock manure management. The Advocators (Q3, 2020). Sioux Nation Ag Center, Sioux Falls, SD.
Yang, X., Thaler, R, Samuel, R. (2020). South Dakota Odor Footprint Tool (SDOFT), Part I: Principles and Tool Formulation. SDSU Extension P-00178.
Yang, X., Thaler, R, Samuel, R. (2020). South Dakota Odor Footprint Tool (SDOFT), Part II: Examples. SDSU Extension P-00179.
Yang, X., Thaler, R., Samuel, R. (2020). Optical Dust Meters May Misestimate Dust Concentrations in Animal Barns. SDSU Extension P-00180.
Samuel, R., Yang, X., Zangaro, C., Darrington, J. (2020). Air Infiltration in Swine Barns. SDSU Extension P-01011.
Samuel, R., Yang, X., Zangaro, C., Darrington, J. (2020). Basic Ventilation System Design for Pork Producers. SDSU Extension P-01012.
Samuel, R., Yang, X., Zangaro, C., Darrington, J. (2020). Understanding Fan Performance Metrics and Variability. SDSU Extension P-01013.