Abstract: According to an embodiment, an estimation apparatus includes first to fourth obtainers and an estimator. The first obtainer obtains, for each slave node, a piece of synchronization information in a network configuration including: nodes including a master node serving as a time synchronization source, one or more slave nodes serving as time synchronization destinations, and relay nodes; and paths connecting the nodes. The second obtainer obtains, for each path, a piece of band information. The third obtainer obtains, for each path, a piece of traffic information. The fourth obtainer obtains, for each relay node, a piece of path information. The estimator estimates a predetermined relay node causing reduction of accuracy of time synchronization between the master node and the one or more slave nodes, based on the one or more pieces of synchronization information, the pieces of band information, the pieces of traffic information, and the pieces of path information.

Abstract: A SERS unit comprises a substrate; an optical function part formed on the substrate, for generating surface-enhanced Raman scattering; and a package containing the optical function part in an inert space and configured to irreversibly expose the space.

Abstract: A surface-enhanced Raman scattering element comprises a substrate having a principal surface; a molded layer having a support part formed on the principal surface of the substrate so as to extend along the principal surface and a fine structure part formed on the support part; and a conductor layer formed on the fine structure part and constituting an optical functional part for generating surface-enhanced Raman scattering; the molded layer being relatively thinner in a direction intersecting the principal surface of the substrate at a center edge part of a fine structure area formed with the fine structure part in the molded layer than at an outer edge part of the fine structure area.

Abstract: A method for making a surface enhanced Raman scattering device in accordance with one aspect of the present invention comprises a first step of forming a nanoimprint layer on a main surface of a wafer including a plurality of portions each corresponding to a substrate; a second step of transferring, by using a mold having a pattern corresponding to a fine structural part, the pattern to the nanoimprint layer after the first step, and thereby forming the formed layer including the fine structural part for each portion corresponding to the substrate; a third step of forming a conductor layer on the fine structural part after the second step; and a fourth step of cutting the wafer into each portion corresponding to the substrate after the second step.

Abstract: The present invention provides a hydrogen water generator capable of efficiently generating hydrogen with a structure in which anode electrode(s) and cathode electrode(s) are arranged in a container in an approximately vertical direction. The electrode portion 4 which includes two or more of anode electrodes 4A or cathode electrodes 4B is supported by a generator body cover portion 2. The generator body cover portion 2 is held and the electrode portion 4 is immersed in drinking water in a beverage container 12 such as a cup. Then, electrolysis is caused owing to that a controller 11 applies voltage obtained by boosting supply voltage from a battery 8 to the electrode portion 4 for a predetermined time. At this time, since a plurality of energizing paths between the anode electrode(s) and the cathode electrode(s) are formed, hydrogen can be effectively generated in the drinking water.

Abstract: A SERS unit comprises a substrate; an optical function part formed on the substrate, for generating surface-enhanced Raman scattering; and a package containing the optical function part in an inert space and configured to irreversibly expose the space.

Abstract: A surface-enhanced Raman scattering element comprises a substrate having a principal surface; a molded layer having a support part formed on the principal surface of the substrate so as to extend along the principal surface and a fine structure part formed on the support part; and a conductor layer formed on the fine structure part and constituting an optical functional part for generating surface-enhanced Raman scattering; the molded layer being relatively thinner in a direction intersecting the principal surface of the substrate at an outer edge part of a fine structure area formed with the fine structure part in the molded layer than at a center part of the fine structure area.

Abstract: A SERS unit comprises a substrate; an optical function part formed on the substrate, for generating surface-enhanced Raman scattering; and a package containing the optical function part in an inert space and configured to irreversibly expose the space.

Abstract: A SERS unit comprises a substrate; an optical function part formed on the substrate, for generating surface-enhanced Raman scattering; and a package containing the optical function part in an inert space and configured to irreversibly expose the space.

Abstract: There is provided a drive transmission device including: a belt member, a tension applying roller, a holder, an urging member, and a fastening member, wherein the holder includes: a contacting surface that is brought into contact with the fastening member in the case where the holder is fastened to the target member; and a raised portion that has a portion that is brought into contact with the fastening member earlier than the contacting surface in the case where the holder is fastened to the target member, the raised portion being provided on a side of an end portion of the hole in the tension adjusting direction, and the portion of the raised portion that is brought into contact with the fastening member is deformed by being pressed by the fastening member, and becomes a part of the contacting surface in the case where fastening is completed.

Abstract: According to one embodiment, a measuring apparatus includes a first calculation unit and a second calculation unit. The first calculation unit calculates, as a communication delay for each request packet, a half of a round trip time based on first time information included in the request packet and second time information included in a response packet, the request packet requesting a notification of a reference time, the response packet being a response to the request packet. The second calculation unit calculates one of one or more communication delays not more than a threshold among a plurality of communication delays as an estimated delay of each response packet to be transmitted from the one or more second devices.

Abstract: According to an embodiment, a communication device includes a communicating unit, an estimator, a determiner, an application, and a transmitter. The communicating unit is configured to communicate with another communication device over a network at each first cycle. The estimator is configured to calculate an outgoing communication delay and an incoming communication delay in communication between the communication device and the another communication device at each first cycle, and estimate a communication delay between the communication device and the another communication device based on the outgoing communication delay and the incoming communication delay. The determiner is configured to determine whether the communication delay satisfies a predetermined precision. The application is configured to generate application data at each second cycle.

Abstract: According to an embodiment, an estimation apparatus includes first to fourth obtainers and an estimator. The first obtainer obtains, for each slave node, a piece of synchronization information in a network configuration including: nodes including a master node serving as a time synchronization source, one or more slave nodes serving as time synchronization destinations, and relay nodes; and paths connecting the nodes. The second obtainer obtains, for each path, a piece of band information. The third obtainer obtains, for each path, a piece of traffic information. The fourth obtainer obtains, for each relay node, a piece of path information. The estimator estimates a predetermined relay node causing reduction of accuracy of time synchronization between the master node and the one or more slave nodes, based on the one or more pieces of synchronization information, the pieces of band information, the pieces of traffic information, and the pieces of path information.

Abstract: According to an embodiment, a communication device includes an application, a transmitter, a communication unit, and an estimator. The application is configured to generate application data in each first cycle. The transmitter configured to transmit the application data to a network at a random timing within the first cycle in each first cycle. The communication unit is configured to communicate with another communication device via the network in each second cycle. The estimator is configured to calculate an outward communication time and a return communication time communication between the communication device and the other communication device in each second cycle, and estimate a communication delay time between the communication device and the other communication device based on the calculated outward communication times and the calculated return communication times.

Abstract: According to an embodiment, a management device includes a calculator and a notifier. The calculator calculates a time offset for each of a plurality of master devices each performing, when a measured time reaches a certain time, time synchronization with a slave device, which is a management target, at the measured time. The notifier notifies each master device of a change notification causing the master device to change the measured time in the master device to a time obtained by offsetting the measured time with the time offset.

Abstract: The present invention provides a permanent magnet with a composition ratio of RXT(100-X-Y)CY having a main phase with Nd5Fe17 type crystal structure, wherein: R is one or more rare earth elements including Sm as a necessary element, and the rare earth elements are Sm, Y, La, Pr, Ce, Nd, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu; and T is one or more transition metal elements including Fe or a combination of Fe and Co as necessary elements; and 15<X<40, 5<Y<15, 1.5<(100-X-Y)/X<4.

Abstract: According to an embodiment, a synchronization control device is connectable to a server via a network. The device includes an acquisition unit and a determination unit. The acquisition unit acquires one or more condition values relating to one or more conditions for determining at least one of a certain communication mode and a certain synchronization mode. The certain communication mode is a mode for communicating with the server and is used in time synchronization for synchronizing time between the synchronization control device and the server. The certain synchronization mode is a mode for synchronizing time of the synchronization control device with reference time measured by the server and is used in the time synchronization. The determination unit determines, by using the condition values, at least one of the certain communication mode out of a plurality of communication modes and the certain synchronization mode out of a plurality of synchronization modes.

Abstract: According to one embodiment, a communication device includes a clock to measure time, communication circuitry and processing circuitry. The communication circuitry transmits a request signal to the other communication device in a certain cycle, and receives a response signal transmitted in response to the request signal, from the other communication device. The processing circuitry changes a transmission timing of the request signal; compares first round-trip delay time with second round-trip delay time; and if a result of comparison shows that the second round-trip delay time is shorter than the first round-trip delay time, adjusts the time measured by the clock using a transmission time point of the second request signal and the reception time point of the second request signal in the other communication device, and the transmission time point of the second response signal from the other communication device and a reception time point of the second response signal.

Abstract: A printing apparatus comprises a feeding roller configured to feed a printing sheet, a conveyance roller configured to convey the printing sheet, a printing unit configured to print on the printing sheet, a conveyance control unit configured to control conveyance of printing sheets so that a trailing edge of a preceding sheet and a leading edge of a succeeding sheet overlap each other, a determination unit configured to determine whether the leading edge of the succeeding sheet overlaps the trailing edge of the preceding sheet, and a delay unit configured to delay conveyance of the preceding sheet when the determination unit determines that the leading edge of the succeeding sheet does not overlap the trailing edge of the preceding sheet.