Abstract: A driving assistance device of an embodiment includes a recognizer configured to recognize a surrounding situation of a mobile object, a determiner configured to determine, on the basis of the surrounding situation, whether to prompt a driver of the mobile object to perform a steering operation and whether there is a possibility of a risk occurring for the mobile object, and a notification controller configured to cause a speaker to output a guidance sound prompting the driver of the mobile object to perform a steering operation and a warning sound with respect to the risk on the basis of a result of the determination by the determiner, in which the notification controller causes output modes for the guidance sound and the warning sound to be different from each other.

Abstract: According to an embodiment, a driving assistance device includes a recognizer configured to recognize a surrounding situation of a mobile object, a decider configured to decide whether or not to prompt a driver of the mobile object to perform acceleration or deceleration on the basis of the surrounding situation, and a notification controller configured to cause a speaker to output a notification sound for prompting the driver of the mobile object to perform the acceleration or deceleration on the basis of a decision result. The notification sound is a notification sound obtained by continuously changing a structure of a sound.

Abstract: A mixed gas separation method includes a step of supplying a mixed gas to the separation membrane and causing a gas with high permeability in the mixed gas to permeate through the separation membrane. In the step, when ?P is a difference between a gas pressure on the primary side of the separation membrane, i.e., a feed pressure, and a gas pressure on the secondary side of the separation membrane, i.e., a permeate pressure, and A is a Joule-Thomson coefficient, a difference ?T between a gas temperature on the primary side of the separation membrane, i.e., a feed temperature, and a gas temperature on the secondary side of the separation membrane, i.e., a permeate temperature, is made less than 90% of A·?P by setting the Nu number in the mixed gas to be greater than or equal to 2 and less than or equal to 10.

Abstract: A control device for a mobile object including one or more imaging devices, the control device includes an image acquisition unit configured to acquire an image of an external environment of the mobile object from the one or more imaging devices, a correction unit configured to perform distortion reduction processing for reducing distortion of an image for each of one or more regions included in an image acquired from the one or more imaging devices, and a recognition unit configured to recognize the external environment of the mobile object based on an image on which the distortion reduction processing has been performed. The correction unit is configured to determine the one or more regions to be a target of the distortion reduction processing in accordance with a predetermined rule according to a moving scene of the mobile object.

Abstract: A membrane heat treatment method includes a process of raising the temperature of a membrane to an intermediate heating temperature (step S21), a process of heating and keeping the membrane at the intermediate heating temperature (step S22), a process of raising the temperature of the membrane to a main heating temperature higher than the intermediate heating temperature (step S23), and the process of heating and keeping the membrane at the main heating temperature (step S24). A first recovery amount R1 that is a difference in permeability of the membrane between after step S22 and before step S21 is 50% or more and 95% or less of a second recovery amount R2 that is a difference in permeability of the membrane between after step S24 and before step S21.

Abstract: A driving assistance device of an embodiment includes a recognizer that recognizes a surroundings situation of a vehicle, and a display controller that causes an image for assisting an occupant driving the vehicle to be displayed in a plurality of preset display modes on a display device, the plurality of display modes include display modes corresponding to at least a display mode corresponding to a mode in which the vehicle travels on a narrow road, and the display controller causes transition to any one of the plurality of display modes to be performed on the basis of the surroundings situation recognized by the recognizer.

Abstract: A control device acquires a speed of another vehicle and a position of the other vehicle, selects a determination scheme according to the speed of the other vehicle from among a plurality of determination schemes, applies the position of the other vehicle to the selected determination scheme to determine whether the other vehicle enters a second lane adjacent to a first lane in which the other vehicle travels from the first lane, and controls the vehicle based on a result of the determination.

Abstract: A driving assistance device includes a storage medium storing computer-readable instructions and a processor connected to the storage medium, the processor executing the computer-readable instructions to generate a target operation amount profile that is a time-series change in a target acceleration operation amount when a mobile object merges into a main lane, and cause an information output device to output information when an actual acceleration operation amount that is an amount of acceleration operation performed on an acceleration operator by a driver of the mobile object has deviated from a prescribed range including the target acceleration operation amount. Generating the target operation amount profile includes changing the target operation amount profile based on a driving tendency of the driver.

Abstract: A driving assistance device includes a storage device storing a program and a hardware processor connected to the storage device. The hardware processor reads and executes the program stored in the storage device to recognize a risky physical object located near a mobile object on the basis of an output of a physical object detection device, cause at least one speaker to output a notification sound on the basis of a position of the risky physical object, and when the notification sound is output, cause the at least one speaker to output a first notification sound if the risky physical object is located in a first region including a region in front of the mobile object and cause the at least one speaker to output a second notification sound if the risky physical object is located in a second region including a region behind the mobile object. The first notification sound is a sound having a pitch different from that of the second notification sound.

Abstract: A driving assistance device includes a storage device configured to store a program and a processor connected to the storage device. The processor executes the program stored in the storage device to acquire information about a target position decided on as a position relative to another moving object located in a second lane when a host moving object merges or changes lanes from a first lane to the second lane and cause a speaker to output a sound obtained by combining a basic sound for acceleration guidance with an additional sound for the acceleration guidance having a higher frequency than the basic sound for the acceleration guidance when the host moving object should accelerate such that position alignment related to a traveling direction of the host moving object is performed with respect to the target position.

Abstract: A zeolite membrane complex comprises: a support; and a zeolite membrane formed on the support. The membrane is of SAT-type zeolite, and in an X-ray diffraction pattern obtained by X-ray irradiation to the zeolite membrane, a peak intensity around 2?=13.9° is 1.5 times or more a peak intensity around 2?=8.5°.

Abstract: The monolithic separation membrane structure includes a monolithic base, an intermediate layer and a separation membrane. The monolithic base has a plurality of filtration cells extending from a first end face to a second end face. The intermediate layer is formed on an inner surface of the filtration cells. The separation membrane is formed on an inner surface of the intermediate layer. An inner diameter not including the intermediate layer and the separation membrane of the plurality of respective filtration cells is greater than or equal to 1.0 mm to less than or equal to 2.0 mm. A partition wall thickness not including the intermediate layer and the separation membrane of the shortest portion of two adjacent filtration cells of the plurality of filtration cells is greater than or equal to 0.05 mm to less than 0.2 mm. A thickness of the intermediate layer is greater than or equal to 20 ?m to less than 100 ?m.

Abstract: Seed crystals are crystals of zeolite to be attached onto a support in production of a zeolite membrane complex including the support and a zeolite membrane formed on the support. The specific surface area of the seed crystals is not smaller than 10 m2/g and not larger than 150 m2/g. The strength obtained from a crystal component at a diffraction angle 2? indicating a maximum peak in a range of diffraction angle 2? from 12° to 25° in an X-ray diffraction pattern obtained by emitting X-ray to the seed crystals is not less than once and not more than 30 times that obtained from an amorphous component. It is thereby possible to improve adherence of the seed crystals to the support.

Abstract: A control device for a mobile object including one or more imaging devices, the control device includes an image acquisition unit configured to acquire an image of an external environment of the mobile object from the one or more imaging devices, a correction unit configured to perform distortion reduction processing for reducing distortion of an image for each of one or more regions included in an image acquired from the one or more imaging devices, and a recognition unit configured to recognize the external environment of the mobile object based on an image on which the distortion reduction processing has been performed. The correction unit is configured to determine the one or more regions to be a target of the distortion reduction processing in accordance with a predetermined rule according to a moving scene of the mobile object.

Abstract: A mobile object control device acquires an image obtained by imaging an outside space of a mobile object, determines whether the mobile object is in a merging lane closer to a merged lane between two merging lanes, determines whether another mobile object is in a merging lane farther from the merged lane between the merging lanes in front of the mobile object when it is determined that the mobile object is in the closer merging lane, sets one or more merging position candidates at which merging of the mobile object to the merged lane is completed and which are positions between mobile objects in the merged lane, and selects a merging position at which the merging of the mobile object to the merged lane is completed from the one or more merging position candidates.

Abstract: A moving object control device includes a storage device storing a program and a hardware processor. The hardware processor executes the program stored in the storage device to acquire an image by imaging a space outside of a moving object, determine whether or not the moving object is traveling in a merging lane on the basis of the image, detect a first reference object and a second reference object according to image processing when it is determined that the moving object is traveling in the merging lane, virtually set a plurality of third reference objects extending parallel to the first reference object at a first prescribed width in a hypothetical plane virtually viewed from above, and derive information about a location where the merging lane disappears on the basis of at least a first intersection between the second reference object and the plurality of third reference objects.

Abstract: A zeolite membrane complex includes a support and a zeolite membrane formed on the support. The zeolite membrane is of an SAT-type zeolite. Among particles on the surface of the zeolite membrane, particles that have aspect ratios higher than or equal to 1.2 and lower than or equal to 10 account for 85% or more of the area of the surface of the zeolite membrane. This improves the orientations of the particles and also reduces the interstices among the particles. As a result, the denseness of the zeolite membrane is improved. Accordingly, for example, high gas separation performance can be obtained when the zeolite membrane complex is used as a gas separation membrane.

Abstract: A peak intensity of a (002) plane is greater than or equal to 0.5 times a peak intensity of a (100) plane in an X-ray diffraction pattern obtained by irradiation of X-rays to a membrane surface of the ERI membrane.

Abstract: A silica membrane filter 10 includes an ultrafiltration membrane 15, which is disposed on a support body 14 and which contains an element 14 as a primary component, and a silica membrane 18 which is disposed on the ultrafiltration membrane 15 and which has an aryl group. The ultrafiltration membrane 15 has a structure infiltrated by Si of the silica membrane 18, the atomic ratio A (=Si/M) of Si to the element M in a membrane-side region 16, which is a region corresponding to 25% of the ultrafiltration membrane 15 from the silica membrane 18, satisfies 0.01?A?0.5, and the ratio A/B of the atomic ratio A to the atomic ratio B (=Si/M) in a base-material-side region 17, which is a region corresponding to 25% from the support body 14, is within the range of 1.1 or more.

Abstract: Part of a zeolite membrane of a zeolite membrane complex is set in pores of a support over a boundary surface between the zeolite membrane and the support. With respect to a main element constituting the zeolite membrane, a distance in a depth direction perpendicular to the boundary surface between a position at which a ratio (B/C)/A is 0.8 and the boundary surface is preferably not smaller than 0.01 ?m and not larger than 5 ?m. B/C is a value obtained by dividing an atomic percentage B of the main element inside the support by a porosity C of the support. The ratio (B/C)/A is a ratio of the value to an atomic percentage A of the main element in the zeolite membrane.