Abstract: The present invention is a method for producing a modified cellulose including the following step A: step A: introducing a cellulose raw material with a substituent having 6 or more carbon atoms to a group in which a hydrogen atom is removed from a hydroxyl group of a cellulose backbone, in the presence of water and a surfactant. The present invention relates to a method for producing a modified cellulose having a high affinity of an organic solvent, a resin or the like, and a hydrophobic medium, using a reaction system with low environmental loads and with prospects of reduction in production costs.

Abstract: The fuel replenishment amount to a vehicle at each time is collected by a support server 10 through a smartphone 20. Then, information corresponding to calculation results such as the fuel remaining amount based on the information collected by the support server 10 is transmitted to a user through the smartphone 20. Thus, even when a terminal for transmitting the fuel replenishment amount to the smartphone 20 is not installed at a fuel supply station, information meaningful to the user in making a driving plan for the vehicle, such as the fuel remaining amount of the vehicle, can be provided to the user through this smartphone 20 at an appropriate timing.

Abstract: The fuel replenishment amount to a vehicle at each time is collected by a support server 10 through a smartphone 20. Then, information corresponding to calculation results such as the fuel remaining amount based on the information collected by the support server 10 is transmitted to a user through the smartphone 20. Thus, even when a terminal for transmitting the fuel replenishment amount to the smartphone 20 is not installed at a fuel supply station, information meaningful to the user in making a driving plan for the vehicle, such as the fuel remaining amount of the vehicle, can be provided to the user through this smartphone 20 at an appropriate timing.

Abstract: A projection display device is provided with: a light source portion including at least one light source that emits coherent light; an image light generation portion that generates image light by modulating the light emitted by the light source portion; a projection portion that projects the image light; a liquid crystal scattering element that is disposed on an optical path between the light source portion and the image light generation portion and temporally changes scattering state for passing light; a transparent electrode formed on each of opposing surfaces of a plurality of transparent substrates of the liquid crystal scattering element; and a liquid crystal layer that is sandwiched between the transparent electrodes and has liquid crystal of a smectic phase having spontaneous polarization in voltage applied state, and is characterized in that an AC voltage is applied to the liquid crystal layer through the transparent electrode.

Abstract: A hydrogen storage alloy for negative electrodes in an alkaline storage battery is disclosed. The alloy is represented by the general formula MmNi.sub.x M.sub.y, wherein Mm is a misch metal or a mixture of rare earth elements, and M is at least one element selected from the group consisting of Al, Mn, Co, Cu, Fe, Cr, Zr, Ti and V and wherein 5.0.gtoreq.x +y.gtoreq.5.5, and has a microstructure comprising a phase composed of a crystal structure of CaCu.sub.5 type and is capable of absorbing and desorbing hydrogen in a reversible manner, and at least one phase consisting mainly of an element or elements other than Mm, and incapable of storing hydrogen.