Nec Corporation

Kazuki Ihara

Hideaki Numata

Chenhui Huang

Kenichiro Fukushi

Noriyuki Tonouchi

Fumiyuki Nihey

Ryota Yuge

Mayumi Kosaka

A method for separating a single-walled carbon nanotube mixture includes: preparing a dispersion liquid containing the single-walled carbon nanotube mixture and a surfactant; and separating the single-walled carbon nanotube mixture contained in the dispersion liquid, wherein in the separating the single-walled carbon nanotube mixture, a dispersion liquid in which a physical property of the dispersion liquid is within a prescribed range is used.

Method for separating single-walled carbon nanotube mixture and single-walled carbon nanotube dispersion liquid

Provided is an information processing device including an acquisition unit configured to acquire motion information of a foot of a user measured by a motion measurement device and a determination unit configured to determine whether or not the user is in a pedaling state in which the user pedals a bicycle based on an angle between a sole and a ground generated from the motion information.

Information processing device, state determination system, energy calculation system, information processing method, and storage medium

A discrimination device includes: a log acquisition unit that acquires sensor data including acceleration acquired by a sensor placed in a shoe, a storage unit that stores log data of the sensor data, a log calling unit that calls the log data stored in the storage unit, a discrimination unit that distinguishes a walking state from a waveform of the log data, a threshold setting unit that retains a first threshold and a second threshold, and sets the first threshold and the second threshold based on a discrimination result, and a transmission unit that transmits the discrimination result. When acceleration in the log data has not exceeded the second threshold within a discrimination time, the discrimination device outputs a discrimination result of being erroneous activation, and updates the first threshold based on a value of the acceleration in the traveling direction in the log data according to the discrimination result.

Discrimination device, discrimination method, and program recording medium

A walk discrimination device includes: a data reception unit that receives sensor data including an acceleration and an angular velocity acquired by a sensor installed in a shoe; an acceleration determination unit that determines whether the acceleration included in the sensor data is positive or negative; an attitude angle calculation unit that calculates an attitude angle by use of the acceleration and the angular velocity included in the sensor data; an attitude angle determination unit that determines whether the attitude angle calculated by the attitude angle calculation unit has exceeded a threshold, and determines whether a peak of the attitude angle has been detected; a walk discrimination unit that discriminates a walk based on a determination order by the acceleration determination unit and the attitude angle determination unit; and an output unit that outputs a discrimination result by the walk discrimination unit.

Walk discrimination device, walk discrimination method, and program recording medium

A nanocarbon separation device includes a separation tank that is configured to accommodate a dispersion liquid including nanocarbons, a first electrode provided at an upper part in the separation tank, a second electrode provided at a lower part in the separation tank, an evaluation unit that is configured to evaluate a physical state or a chemical state of the dispersion liquid, and a determination unit that is configured to determine a separation state between metallic nanocarbons and semiconducting nanocarbons included in the dispersion liquid from the physical state or the chemical state.

Nanocarbon separation device and nanocarbon separation method

Provided is a method for stably storing a nanocarbon dispersion liquid comprising a surfactant for a long period of time. One aspect of the present invention relates to a method for storing a nanocarbon dispersion liquid comprising a low-temperature storage step of storing the nanocarbon dispersion liquid at 10&#xb0; C. or lower and/or a surfactant concentration adjustment step of adjusting a concentration of the surfactant in the nanocarbon dispersion liquid so as to be less than 100 times of a critical micelle concentration and equal to or more than the critical micelle concentration.

Method for storing a nanocarbon dispersion liquid

A nanocarbon separation device includes a separation tank that is configured to accommodate a dispersion liquid including nanocarbons, a first electrode that is provided at an upper part in the separation tank, a second electrode that is provided at a lower part in the separation tank, an evaluation unit that is configured to evaluate a physical state or a chemical state of the dispersion liquid, and a fractionation unit that is configured to fractionate the dispersion liquid based on the physical state or the chemical state.

A nanocarbon separation device includes a separation tank which is configured to accommodate a dispersion liquid including a nanocarbon, a first electrode that is provided at an upper part in the separation tank, a second electrode that is provided at a lower part in the separation tank, and a partition member that is provided between the first electrode and the second electrode in the separation tank, and the partition member partitions the separation tank into a plurality of regions.

Nanocarbon separation device, nanocarbon separation method, and nanocarbon recovery method

A nanocarbon separation device of the present invention includes a separation tank which is configured to accommodate a dispersion liquid including a nanocarbon, a first electrode that is provided at an upper part in the separation tank, a second electrode that is provided at a lower part in the separation tank, and a porous structure that is provided between the first electrode and the second electrode in the separation tank.

Nanocarbon separation device, nanocarbon separation method, nanocarbon recovery method

A method for separating a nanocarbon material includes a step in which a dispersion solution of the nanocarbon material which is dispersed into nanocarbon micelle groups having a plurality of different electric charges, and a retaining solution having a different specific gravity from the nanocarbon material, are introduced into an electrophoresis tank to form a layered state disposed in layers in a predetermined direction; and a step separating the nanocarbon micelle groups into at least two nanocarbon micelle groups by means of applying direct current voltage in series across the dispersion solution and the retaining solution which had both been introduced and disposed in layers.

Method for separating nanocarbon material, separation device, and separated nanocarbon dispersion solution

This invention provides a semiconductor element which uses a plurality of carbon nanotubes as a current path, can reduce contact resistance of its electrode contact part, and has excellent electrical characteristics. This semiconductor element is characterized in that the semiconductor element includes a current path () comprised of a plurality of carbon nanotubes () and not less than two electrodes () connected with the current path, wherein at least one or more of the electrodes is made of a mixture of a metal and a carbon material () having SPhybridized orbital, such as a multi-walled carbon nanotube, a glassy carbon, and graphite particles.

Growing community of inventors

Tokyo, Japan

Kazuki Ihara