With a Little Help of Humans. An Exploratory Study of Delivery Robots Stuck in Snow

50 PECAM-FY4A&B: Precipitation Estimation Using Chromatographic Analysis Method by Merging Enhanced Multispectral Infrared Observations From FengYun-4A and 4B 50 PECA-FY4A: Precipitation Estimation using Chromatographic Analysis methodology for full-disc multispectral observations from FengYun-4A/AGRI 50 SKGC: A General Semantic-Level Knowledge Guided Classification Framework for Fetal Congenital Heart Disease 40 Accurate Structural Time-Varying Frequency Estimation by Employing Data-Driven AdaptiveVariational Nonlinear Chirp Mode Decomposition Approach 40 Bio-Magnetically Tailored Spin Configurations in Ni-Doped FeS Pre-Catalysts for Alkaline Water Splitting 10 INDUSTRIAL SYMBIOSIS: Literature and Taxonomy 10 Embossing-Free Permeate Carrier for Ultrahigh Pressure Reverse Osmosis 20 A ultra-high-temperature free-piston thermoacoustic Stirling heat pump capable of achieving above 200 °C 20 A novel hybrid semi-closed supercritical CO2 power cycle with zero emissions driven by both concentrated solar thermal energy and oxy-fuel combustion 10 Contract Selection Decision of Hybrid Energy Power Supply Chain Under Cap-and-Trade: Perspective of Supply Disruption Risk