Abstract: A working vehicle includes a steering device to steer a vehicle body, a working device connected to the vehicle body, an automatic steering controller to perform automatic steering of the steering device based on a difference between a scheduled traveling line and a position of the vehicle body, and a parameter changer to change a control parameter of the automatic steering depending on the working device connected to the vehicle body.

Abstract: A working vehicle includes a steering handle, a vehicle body to travel with either manual steering by the steering handle or automatic steering of the steering handle based on a traveling reference line, an operator provided to the vehicle body, and a controller to terminate the automatic steering when the operator is operated under the automatic steering.

Abstract: A thermoelectric conversion material includes: a base material that is a semiconductor composed of a base material element; a first additional element that is an element different from the base material element, has a vacant orbital in a d orbital or f orbital located internal to an outermost shell of the first additional element and forms a first additional level in a forbidden band of the base material; and a second additional element that is an element different from both of the base material element and the first additional element and forms a second additional level in the forbidden band of the base material. A difference is 1 between the number of electrons in an outermost shell of the second additional element and the number of electrons in at least one outermost shell of the base material element.

Abstract: A coated body is obtained by providing a surface layer of a coating composition on a substrate, wherein the surface layer contains cerium oxide particles having an oxygen-deficient fluorite structure and having an average crystallite diameter of 10 nm or less, and the cerium oxide particles have, in a Raman spectrum, a peak that is attributed to the F2g vibration mode of a Ce—O bond and that is offset by more than 2 cm?1 toward the lower wavenumber from a peak that is attributed to the F2g vibration mode of a Ce—O bond and that is obtained when a standard substance is measured. This coated body significantly suppresses fungal growth inside of a door and algal growth outside of a door for a long period of time.

Abstract: A thermoelectric conversion material includes: a base material that is a semiconductor composed of a base material element; a first additional element that is an element different from the base material element, has a vacant orbital in a d orbital or f orbital located internal to an outermost shell of the first additional element and forms a first additional level in a forbidden band of the base material; and a second additional element that is an element different from both of the base material element and the first additional element and forms a second additional level in the forbidden band of the base material. A difference is 1 between the number of electrons in an outermost shell of the second additional element and the number of electrons in at least one outermost shell of the base material element.