Abstract: A method for synthesizing and application embedded alkaline earth metal oxide solid alkali includes: firstly, synthesizing an alkaline earth metal organic skeleton with single or multiple alkaline earth metals (Mg, Ca and Sr) as central metal elements; and then controlling the heating process to carry out high-temperature pyrolysis in a non-oxidizing atmosphere, so that the alkaline earth metal oxide are embedded in the nano carbon sheet to obtain a solid alkali catalyst. Finally, the catalyst is used to catalyze the transesterification of palm oil and methanol to produce biodiesel. The active site of the solid alkali obtained by the method is anchored on the nano-like carbon sheet, so that the active site is directly exposed on the surface of the catalyst, the catalytic activity is improved, the loss of the active site is inhibited, and the stability of the solid alkali catalyst is enhanced.

Abstract: A method for synthesizing and application embedded alkaline earth metal oxide solid alkali includes: firstly, synthesizing an alkaline earth metal organic skeleton with single or multiple alkaline earth metals (Mg, Ca and Sr) as central metal elements; and then controlling the heating process to carry out high-temperature pyrolysis in a non-oxidizing atmosphere, so that the alkaline earth metal oxide are embedded in the nano carbon sheet to obtain a solid alkali catalyst. Finally, the catalyst is used to catalyze the transesterification of palm oil and methanol to produce biodiesel. The active site of the solid alkali obtained by the method is anchored on the nano-like carbon sheet, so that the active site is directly exposed on the surface of the catalyst, the catalytic activity is improved, the loss of the active site is inhibited, and the stability of the solid alkali catalyst is enhanced.

Abstract: Techniques for confirming an operator of a vehicle is drowsy are described. A vehicle computing system sends data (e.g., raw sensor data and/or alert data corresponding to an indication that a driver is impaired determined based on the raw sensor data) to a remote server(s). The remote server(s) confirms the driver is impaired based on the raw sensor data and/or other contextual data. The remote server(s) then receives output data from a speechlet and causes the vehicle computing system to present output audio corresponding to output data.

Abstract: Techniques for engaging a drowsy or otherwise impaired driver of a vehicle in a VUI dialog are described. A vehicle computing system sends data (e.g., raw sensor data and/or an indication that a driver is impaired determined based on the raw sensor data) to a remote server(s). The remote server(s) may separately determine whether the driver is impaired based on the raw sensor data and/or other contextual data. The remote server(s) selects a speechlet to provide output data based on the sensor data, contextual data, and or a level at which the driver is impaired. The remote server(s) then causes the vehicle computing system to present output audio corresponding to output data provided by the speechlet.