Abstract: An object is to provide a device that can measure a moving time (velocity) of a single particle with high accuracy, and an ion current measuring apparatus and a zeta potential measuring apparatus with the device, and an ion current measuring method and a zeta potential measuring method. The object can be achieved by a device used for measurement of ion current, the device including: a substrate; and a channel formed in the substrate. The channel includes a sample liquid supply channel, a sample collection channel, and constricted channel formed between the sample liquid supply channel and the sample collection channel. The constricted channel includes three or more constricted parts each formed with a protrusion part, the three or more constricted parts are formed substantially straight in a direction from the sample liquid supply channel to the sample collection channel, and when the width of each of the constricted parts is defined as 1, the spacing between adjacent constricted parts is 0.5 to 3.

Abstract: Provided is a polyether polycarbonate diol, wherein the ratio of the total number of terminal alkoxy groups and terminal aryloxy groups to the total number of all terminal groups is 0.20% or more and 7.5% or less. Controlling the ratio of the total number of terminal alkoxy groups and terminal aryloxy groups to the total number of all terminal groups included in the polyether polycarbonate diol to fall within the preferable range enables a polyurethane having an intended molecular weight to be produced while the occurrence of rapid polymerization reaction is reduced.

Abstract: A method of forming an acupuncture needle includes forming an acupuncture needle having a needle body having a needle tip portion at a leading end thereof, and a needle grip attached to a base end portion of the needle body. A cross-sectional shape crossing a longitudinal direction of the acupuncture needle at a middle of the needle grip in the longitudinal direction is an ellipse. A groove portion is provided along an outer circumference of the needle grip. When using as an acupuncture needle with a long needle grip, the needle grip is maintained without being separated at the groove portion. When using as an acupuncture needle with a short needle grip, the needle grip is bent with a bending load direction in a minor axis direction of the ellipse to separate the needle grip at the groove portion.

Abstract: An acupuncture needle is an acupuncture needle including a needle body having a needle tip portion at a leading end thereof, and a needle grip attached to a base end portion of the needle body. A cross-sectional shape crossing a longitudinal direction of the needle grip is an ellipse.

Abstract: A polyalkylene ether glycol composition including a polyalkylene ether glycol including an alkoxy group serving as a terminal group. The polyalkylene ether glycol composition has a hydroxyl value of 220 or more and 750 or less. The ratio of the number of alkoxy group terminals of the polyalkylene ether glycol included in the polyalkylene ether glycol composition to the number of hydroxyl group terminals of polyalkylene ether glycols included in the polyalkylene ether glycol composition is 0.00001 or more and 0.0040 or less. Provided is a polyalkylene ether glycol composition having excellent compatibility with low-molecular-weight polyols, having suitable reactivity when used as a raw material for polyurethanes, and capable of achieving intended physical properties.

Abstract: To provide a delivery management method that is based on resource conservation, energy conservation, ecology and the like. [Resolution Means] Host computers (10 and 20) that provide the steps of: selecting between a packaging mode using a cardboard box and a packaging mode using a return box that goes back and forth between a delivery destination and a product delivery center without the use of the cardboard box with regards to the packaging of a product when an order for a product is received from a terminal device (S103); assigning a return box and a pickup location of a delivery company in a zone that includes the delivery destination of the product when the packaging mode using the return box is selected using a selection screen (S111); stowing the product in the assigned return box at the product delivery center (S115); delivering the return box from the product delivery center (S116); and returning the return box to the product delivery center after the return box has been delivered (S119).

Abstract: An object of the present invention is to provide high-purity gamma-butyrolactone (GBL) capable of preventing occurrence of reaction other than the object at the time of use, which reaction is caused due to a high acidity of GBL, and the present invention relates to a gamma-butyrolactone composition containing gamma-butyrolactone and a nitrogen-containing compound, wherein a content of the gamma-butyrolactone is 99.0% by mass or more, and a total content of the nitrogen-containing compound is 0.1 ppm by mass to 1,000 ppm by mass as converted to a nitrogen atom.

Abstract: An object of the present invention is to provide high-purity gamma-butyrolactone (GBL) capable of preventing occurrence of reaction other than the object at the time of use, which reaction is caused due to a high acidity of GBL, and the present invention relates to a gamma-butyrolactone composition containing gamma-butyrolactone and a nitrogen-containing compound, wherein a content of the gamma-butyrolactone is 99.0% by mass or more, and a total content of the nitrogen-containing compound is 0.1 ppm by mass to 1,000 ppm by mass as converted to a nitrogen atom.

Abstract: To provide a delivery management method that is based on resource conservation, energy conservation, ecology and the like. [Resolution Means] Host computers (10 and 20) that provide the steps of: selecting between a packaging mode using a cardboard box and a packaging mode using a return box that goes back and forth between a delivery destination and a product delivery center without the use of the cardboard box with regards to the packaging of a product when an order for a product is received from a terminal device (S103); assigning a return box and a pickup location of a delivery company in a zone that includes the delivery destination of the product when the packaging mode using the return box is selected using a selection screen (S111); stowing the product in the assigned return box at the product delivery center (S115); delivering the return box from the product delivery center (S116); and returning the return box to the product delivery center after the return box has been delivered (S119).

Abstract: A mobile station 200 includes a receiving field level detecting unit 213 to convert a level of a wireless signal into an RSSI output, and a wireless frame timing deciding unit 214 to decide a wireless frame timing from the transient characteristic of the RSSI output. By deciding the wireless frame timing from the RSSI output, synchronous establishment can be realized even when the mobile station 200 does not include a demodulation circuit. The mobile station can perform the synchronous establishment without being increased in size.

Abstract: A massage apparatus in this invention comprises a massage mechanism, an actuator, and a controller. The massage mechanism has at least three rotational or translational joints to which an applicator is connected for contact with a human body. The actuator is configured to drive each of the joints independently from each other. The displacement detection means is configured to detect a displacement of each of the joints. The controller is provided for controlling the actuators. The controller is configured to provide a predetermined trace control plane. The controller comprises a position control means and a force control means. The position control means is provided for controlling a tracing path of the applicator in the trace control plane. The force control means is provided for controlling a force exerted by the applicator in a normal direction to the trace control plane.

Abstract: A time-division multiplexing radio system controls transmission power based on an adjacent-channel leakage power ratio with precision and stability. The system has a directional coupler arranged at an output stage of a power amplifier in a transmitter and that has outputs directed to an antenna and a receiver, and a reception RF switch arranged at an input stage of a frequency converter in a receiver and that has inputs directed to the antenna and the coupler. Under transmission, the switch is switched over to the coupler so that the receiver receives the present channel to detect transmission power thereof. Also the receiver is set to receive an adjacent channel under transmission, so that adjacent-channel leakage power is detected. Based on those pieces of detected information, the ratio is calculated. To make the power ratio meet a specified condition, the transmission power of the transmitter is controlled.

Abstract: A massage machine includes a backrest having a support surface for sustaining a back of a user, the support surface having an opening, a massage member for making contact with the back of the user through the opening of the support surface to perform a massage and a drive unit for causing the massage member to perform the massage. In the massage machine, a first intensity adjustment unit is arranged for changing the position of the massage member to adjust the massage intensity of the massage member and a second intensity adjustment unit is arranged for changing the position of the support surface to adjust the massage intensity of the massage member. A control circuit controls the operation of the drive unit, the first intensity adjustment unit and the second intensity adjustment unit.

Abstract: A massage machine includes a massage member for massaging a back of a user's body and an operation unit for changing a massage force of the massage member applied to the user's body. A massage machine further includes a control unit for controlling the operation unit to adjust the massage force. The control unit adjusts the massage force of the massage member based on values set such that a massage force applied to a scapular region on the back of the user's body is smaller than a massage force applied to other regions of the user's body.

Abstract: A mobile station 200 includes a receiving field level detecting unit 213 to convert a level of a wireless signal into an RSSI output, and a wireless frame timing deciding unit 214 to decide a wireless frame timing from the transient characteristic of the RSSI output. By deciding the wireless frame timing from the RSSI output, synchronous establishment can be realized even when the mobile station 200 does not include a demodulation circuit. The mobile station can perform the synchronous establishment without being increased in size.

Abstract: Herein disclosed is a radio signal receiving apparatus for receiving radio signals each having a base band signal component, comprising: radio signal amplifying means for amplifying the radio signals each having a signal level; base band signal producing means for producing base band signals respectively indicative of the base band signal components of the radio signals amplified by the radio signal amplifying means, the base band signals each having a signal level; controlling means for controlling the radio signal amplifying means to have the radio signal amplifying means amplify the radio signals in response to the signal level of each of the base band signals to be produced by the base band signal producing means; base band signal selecting means for periodically selecting one of the base band signals from among the base band signals produced by the base band signal producing means in response to the signal level of each of the radio signals; and base band signal outputting means for outputting the base b

Abstract: Herein disclosed is a bidirectional digital wireless system transmitting and receiving asymmetric transmission frames comprising: a mobile station for transmitting a plurality of uplink transmission frames each including a guard frame portion and a data frame portion carrying a main information segment; and a base station for receiving the uplink transmission frames, and generating and transmitting a plurality of downlink transmission frames each including an information frame element carrying a subsidiary information segment to the mobile station, whereby the base station is operative to divide the information frame element into a predetermined number of information frame portions respectively corresponding to the guard frame portions of the uplink transmission frame with respect to time length, and generate and transmit a plurality of downlink transmission frames each including the information frame portions collectively forming an information frame element carrying a subsidiary information segment to the m

Abstract: Herein disclosed is a wireless microphone system comprising a plurality of wireless microphones each having a microphone storage area having a unique global identification element stored therein, each of the wireless microphones operative to collect a voice, convert the voice thus collected into an audio signal, and transmit the audio signal and the global identification element; and a voice receiving apparatus for receiving the audio signal and the global identification element from a wireless microphone. The voice receiving apparatus includes a storage section for storing an identification table including a plurality of local identification elements in association with a plurality of global identification elements.

Abstract: An apparatus having a band-separating filter bank for separating a digital signal into a plurality of sub-band signals, to be processed or transmitted, and a band-combining filter bank for subsequently combining the resultant sub-band signals into a single digital signal, wherein each of the band-separating filter bank and band-combining filter bank incorporates a FIR low pass filter having an asymmetric impulse response, as the prototype filter of the filter bank. A significant reduction can thereby be achieved in the amount of overall group delay that results from the processing performed by these filter banks.

Abstract: An apparatus having a band-separating filter bank for separating a digital signal into a plurality of sub-band signals, to be processed or transmitted, and a band-combining filter bank for subsequently combining the resultant sub-band signals into a single digital signal, wherein each of the band-separating filter bank and band-combining filter bank incorporates a FIR low pass filter having an asymmetric impulse response, as the prototype filter of the filter bank. A significant reduction can thereby be achieved in the amount of overall group delay that results from the processing performed by these filter banks.