Abstract: An object of the present technology is to provide a technology that enables control of an odor. The present technology provides an odor presentation module including a first opening that first airflow containing an odor exits, and a second opening that second airflow exits, in which the first opening and the second opening are provided so that movement of the first airflow exiting the first opening is able to be controlled by the second airflow. The present technology also provides an odor presentation device and an odor presentation system including the odor presentation module. Further, the present technology provides an odor presentation method including a first airflow generation step of emitting first airflow containing an odor from a first opening, and a second airflow generation step of generating second airflow exiting a second opening or second airflow entering the second opening, in which movement of the first airflow exiting the first opening is controlled by the second airflow.

Abstract: A gas detection method according to an embodiment of the present technology includes heating a semiconductor sensor that includes an absorption layer that includes a metal oxide; measuring a resistance value of the semiconductor sensor in an air atmosphere in which there exists a reducing gas; and determining that the reducing gas includes a detection-target substance when the measured resistance value is larger than another resistance value in a first temperature range, and when the measured resistance value is smaller than the other resistance value in a second temperature range in which a temperature is higher than a temperature in the first temperature range, the other resistance value being a resistance value of the semiconductor sensor in an air atmosphere in which there exists no reducing gas.

Abstract: [Object] An actuator includes an actuator body that includes a first surface and a second surface that face each other; a first constraining member that is provided on the first surface, and constrains the first surface from expanding and contracting; and a second constraining member that is provided on the second surface, and constrains the second surface from expanding and contracting. The actuator body includes a first electrode, a second electrode that faces the first electrode, and an elastomer layer that is provided between the first electrode and the second electrode. The first electrode is a pattern electrode. The first constraining member and the second constraining member are provided correspondingly to the first electrode.

Abstract: A handheld instrument for endoscope surgery includes a shaft, a jaw, a handle, a phased array ultrasonic sensor, and a signal wiring. The jaw is placed at one end of the shaft and has a holding function. The handle is placed at the other end of the shaft and includes an operation mechanism for operating the jaw. The phased array ultrasonic sensor is mounted on the jaw and has an imaging function. The signal wiring is provided to the shaft and connects the ultrasonic sensor and the handle.

Abstract: [Object] An object of the present technology is to provide a handheld instrument for endoscope surgery having an ultrasonic imaging function with a practicable spatial resolution. [Solving Means] A handheld instrument for endoscope surgery according to the present technology includes: a shaft; a jaw; a handle; a phased array ultrasonic sensor; and a signal wiring. The jaw is placed at one end of the shaft and has a holding function. The handle is placed at the other end of the shaft and includes an operation mechanism for operating the jaw. The phased array ultrasonic sensor is mounted on the jaw and has an imaging function. The signal wiring is provided to the shaft and connects the ultrasonic sensor and the handle.

Abstract: Disclosed herein is an information processing device including a voltage measuring unit and a determining unit. The voltage measuring unit measures a voltage across the positive and negative terminals of a set of a plurality of dye-sensitized solar cells connected in series. The determining unit determines the number of the dye-sensitized solar cells not generating electricity according to the amount of voltage drop across the positive and negative terminals from the voltage across the positive and negative terminals in the initial state in which all the dye-sensitized solar cells of the set generate electricity at the voltage measured by the voltage measuring unit.

Abstract: Disclosed herein is an information processing device including a voltage measuring unit and a determining unit. The voltage measuring unit measures a voltage across the positive and negative terminals of a set of a plurality of dye-sensitized solar cells connected in series. The determining unit determines the number of the dye-sensitized solar cells not generating electricity according to the amount of voltage drop across the positive and negative terminals from the voltage across the positive and negative terminals in the initial state in which all the dye-sensitized solar cells of the set generate electricity at the voltage measured by the voltage measuring unit.