Abstract: A battery with no roll groove comprising a cap, an outer washer, a casing and a rolled core, wherein the rolled core is accommodated in the casing, and the cap is electrically connected to the rolled core; a top portion of the casing is bent inward and tightly presses the outer washer against the cap, thereby fixing the rolled core in the casing; the casing has no roll groove structure. The outer washer comprises an outer washer top portion, the outer washer top portion being an annular structure, and the cap being exposed through a central round opening; and an outer washer bottom portion, disposed between the cap and the casing.

Abstract: A method for assisting in the installation of wireless sensors. The method is performed by a computing device and may include presenting, on a display interface of the computing device, a graphical element of the wireless sensor. An orientation of the graphical element in a displayed scene on the display interface is consistent with an installation orientation of the wireless sensor in an actual scene. The method may include presenting, on the display interface, an indication of an installation status of the wireless sensor. The installation status includes the installation orientation being correct or incorrect. The method may include presenting, on the display interface, a second indication of an adjustment suggestion for the installation orientation of the wireless sensor while the indication indicates that the installation orientation is incorrect. The adjustment suggestion includes an orientation adjustment direction and an orientation adjustment angle for the wireless sensor.

Abstract: A method and apparatus for estimating an occurrence location of an event of interest, and computing devices. The method may include: determining a location determination delay time period based on a first time point at which the event of interest occurs and a second time point at which motion information is acquired earliest; acquiring pieces of motion information at sampling time points with a predetermined sampling interval, each piece of motion information includes a motion speed, a motion direction, and a location of the moving vehicle at a respective sampling time point; determining a motion change rate of the moving vehicle based on the pieces of motion information; and estimating the occurrence location of the event of interest based on the motion information at an ordinal first one sampling time point of the sampling time points, the motion change rate, and the location determination delay time period.

Abstract: A method and associated device for estimating revolutions of a bearing on an object is disclosed. The method includes receiving a plurality of measurement data from a plurality of sensors. Each of the plurality of measurement data has a corresponding time stamp. The method includes determining a total travelled distance of the object based on the plurality of measurement data and determining a travelled distance offset of the bearing. The travelled distance offset of the bearing is a distance that the object has travelled when the bearing is installed on the object. The method includes determining the revolutions of the bearing based on the determined total travelled distance of the object and the determined travelled distance offset of the bearing.

Abstract: A method and associated device for estimating revolutions of a bearing on an object. The method includes receiving a plurality of measurement data from a sensor. Each of the plurality of measurement data has a corresponding time stamp. The plurality of measurement data is measured by the sensor waking up based on a first time interval. During running of the object, the first time interval changes based on a running status of the object. The method includes determining a total travelled distance of the object based on the plurality of measurement data and determining a travelled distance offset of the bearing. The travelled distance offset is a distance that the object has travelled when the bearing is installed on the object. The method includes determining the revolutions of the bearing based on the determined total travelled distance of the object and the determined travelled distance offset of the bearing.

Abstract: Disclosed herein is a composite material suitable for use in surface-enhanced Raman scattering, the material comprising a substrate layer having a surface; a plurality of layers of core-shell particles formed on the surface of the substrate layer, wherein the core is formed from a plasmonic metal nanoparticle, and the shell is formed from a metal-organic framework (MOF), and wherein the plurality of layers of core-shell particles provide a thickness of from 0.5 to 10 um on the surface of the substrate layer. In specific embodiments, the plasmonic metal nanoparticles are silver nanocubes, and the MOF is ZIF-8.

Abstract: A battery cap and a battery including the battery cap. The battery cap comprises a top cover; an anti-explosion valve plate, the anti-explosion valve plate being arranged below the top cover and electrically connected to the top cover, and an outer periphery dimension of the anti-explosion valve plate being smaller than an outer periphery dimension of the top cover; an orifice plate, the orifice plate being arranged below the anti-explosion valve plate, and the orifice plate and the anti-explosion valve plate being electrically connected at a central position, and being separated at a peripheral position with a gap; and an internal washer, the internal washer being used for sealing the gap between the outer peripheries of the anti-explosion valve plate and the orifice plate. The present invention may effectively seal electrolyte under normal operating conditions, and quickly and effectively relieve pressure in an emergency situation.

Abstract: A passive sensor device and a passive sensor system are disclosed, wherein the passive sensor device comprises a sensing control module configured to operatively perform a detection process on a device to be detected and generate a detection result; an energy harvesting module mounted on a main body of the device to be detected and configured to convert the harvested vibration energy from the device to be detected into alternating current energy; a power management module configured to receive the alternating current energy from the energy harvesting module, convert the alternating current energy to direct current energy, and supply power to the passive sensor device based on the direct current energy.

Abstract: A portable device and method for determining communication performance metrics are provided. The portable device communicates with the cloud and includes a control device and storage. The control device records and/or processes communication-related data for determining the corresponding metric. The control device acquires communication-related data of a predetermined communication performance metric based on the configuration information, and determines and records the predetermined communication performance metric of the to-be-tested cellular module based on the communication-related data, or records the communication-related data; and uploads the predetermined communication performance metric or the communication-related data to the cloud via the to-be-tested cellular module when the data is required and able to be uploaded to the cloud.

Abstract: The present invention relates generally to methods and systems that can be used to analyse the mouth condition of an individual. The methods and systems can be used in the identification of an oral condition or disease to provide a personalised holistic treatment care plan for the individual. More particularly, the present invention relates to methods and systems that employ artificial intelligence capabilities for generating a treatment plan for an identified oral condition or disease.

Abstract: Disclosed herein is a composite superhydrophobic material comprising: a substrate layer comprising a set of positively or negatively charged functional groups; a metal nanoparticle coating on top of the substrate layer, comprising a set of negatively or positively charged functional groups; a metal layer on top of the metal nanoparticle coating; and a first superhydrophobic layer on top of the metal layer. Also disclosed herein is a method of making said material, and a method of predicting increased risk of spontaneous miscarriage using said material.

Abstract: An optical collection apparatus including one or more elongated light transmissive prismatic optical reflector and one or more planar bifacial solar cells. The one or more elongated light transmissive optical reflectors are shaped and positioned to transmit light to the planar bifacial solar cells. In some embodiments, each planar bifacial solar cell has a first photovoltaic side and a second photovoltaic side, where the first photovoltaic side is positioned to receive direct light having been reflected by a corresponding elongated light transmissive optical reflector.

Abstract: Method, system, and programs for measuring user engagement with content items. In one example, a query is received. A set of content items related to the query is obtained. A presentation of at least one content item of the set of content items is provided on a user interface. A user activity related to the at least one content item is determined. An amount of time between a time at which the presentation of the at least one content item is provided on the user interface and a time at which the user activity occurred is determined. A score associated with the content item is determined based on the amount of time. Information related to user engagement with the set of content items is generated based on the score.

Abstract: Method, system, and programs for measuring user engagement with content items. In one example, a query is received. A set of content items related to the query is obtained. A presentation of at least one content item of the set of content items is provided on a user interface. A user activity related to the at least one content item is determined. An amount of time between a time at which the presentation of the at least one content item is provided on the user interface and a time at which the user activity occurred is determined. A score associated with the content item is determined based on the amount of time. Information related to user engagement with the set of content items is generated based on the score.

Abstract: An optical collection apparatus includes a plurality of light transmissive optical reflectors and a plurality of planar bifacial solar cells. Each light transmissive optical reflector is configured to transmit indirect light impinging on first and second collection sides thereof. First and second photovoltaic sides of each of the plurality of bifacial solar cells are positioned to collect indirect light impinging thereon. The planar bifacial solar cells are arranged such that at least one light transmissive optical reflector of the plurality of light transmissive optical reflectors is positioned between consecutive ones of the planar bifacial solar cells. Each light transmissive optical reflector of the plurality of light transmissive optical reflectors is configured to reflect direct incoming light impinging on the first collection side thereof towards the first photovoltaic side of a corresponding one of the planar bifacial solar cells. A solar collection and shading system is also contemplated.

Abstract: A vehicle chassis health evaluation method and apparatus is disclosed. The method for health evaluation of vehicle chassis may include monitoring the vibration of at least one of the wheel end and the reducer by a vibration sensor. The vibration sensor is installed in the wheel end and/or the reducer. The method may include obtaining total mass information of the vehicle, based on the monitored vibration of at least one of the wheel end and the reducer and the total mass information of the vehicle to perform the health evaluation of the vehicle chassis. By using the health evaluation method of the vehicle chassis, the real-time state of the vehicle chassis can be provided even when the vehicle is driving, and critical safety accidents caused by the chassis can be avoided.

Abstract: A vehicle chassis health evaluation method and apparatus is disclosed. The method for health evaluation of vehicle chassis may include monitoring the vibration of at least one of the wheel end and the reducer by a vibration sensor. The vibration sensor is installed in the wheel end and/or the reducer. The method may further include, based on the monitored vibration of at least one of the wheel end and the reducer, performing the health evaluation of the vehicle chassis. The health evaluation method of the vehicle chassis of the present disclosure allows the real-time state of the vehicle chassis to be determined, even when the vehicle is driving, and critical safety accidents caused by the chassis can be avoided.

Abstract: Methods, systems, and computer programs are presented for displaying a customized news stream. One method includes an operation for identifying dwell times spent by users while accessing a first plurality of items, each item belonging to one media type from a plurality of media types (e.g., news articles, videos, slide shows, etc.). In addition, the method includes operations for determining statistical parameters for each media type based on the identified dwell times, and for detecting a news corpus having a second plurality of items. A priority for each item in the news corpus is determined based on the media type of the item, the corresponding statistical parameters for the media type of the item, and the profile of a user. The news stream is sent to the user for presentation on a display, the news stream being sorted based on the priority of the items in the news corpus.

Abstract: The present disclosure provides an installation device for installing a sensor to a component. The installation device includes a first and second clamps connected together for clamping onto the component. A first adjuster is movably assembled to the first and second clamps. A second adjuster is movably assembled to the first adjuster and includes an installing portion for installing the sensor. The first adjuster and the second adjuster can move along different adjusting directions to adjust the direction of the sensor. The sensor installation device has good adaptability and the installing position can be adjusted according to the actual needs. The installation reliability and connection rigidity can be ensured by various ways such as bolt fastening, fastener fixation or adhesion etc., and the vibration signal transmission path is improved. This makes the installation device especially suitable for installation of vibration sensors and ensures vibration sensors optimally collect vibration signals.

Abstract: A guide roller for a continuous casting machine includes a roller seat having bearings, a roller shaft mounted for rotation in the roller seat and at least one roller body mounted on the roller shaft and configured to support a billet. A passive optical sensor is mounted to the roller seat and configured to output optical signals, and an optical fiber extends from the passive optical sensor and is configured to convey the optical signals to a processor configured to determine one or more physical parameters of an installation position of the passive optical sensor based on the optical signals.