Abstract: In some examples, a system initiates an authentication procedure for a client device, and determines a group of client devices including the client device based on information associated with the client devices. The system assigns, to the client device, a community identifier as part of the authentication procedure, where the community identifier identifies the group of client devices that are able to communicate with one another over a virtual network.

Abstract: Disclosed is a method for extracting near-field incident waves of a fixed offshore engineering structure. The method includes the steps: calculating a dimensionless wave height parameter and a dimensionless water depth parameter based on measured wave information, and selecting applicable wave theories; obtaining analytic signals of measured waves at one or two wave measuring points according to classification of the wave theories; calculating components occupied by incident waves in disturbance waves based on a first-order diffraction theory and a second-order diffraction theory respectively according to the classification; separating the wavelet signal analytic signals according to a proportion of the components of the incident waves for wavelet inverse transformation, to obtain the near-field incident waves of the fixed offshore engineering structure. The present invention can effectively take into account both computational efficiency and accuracy.

Abstract: The present invention has the advantage of recovering high-purity lithium hydroxide from a discarded sagger that is to be scrapped, by pulverizing the discarded sagger and then recovering nickel oxide and cobalt oxide, which are positive electrode active materials, through wet magnetic separation, and removing impurities through Al and Si precipitation reactions and evaporative concentration. Therefore, by using the method for recovering a positive electrode active material and lithium hydroxide from a discarded sagger according to the present invention, high value-added lithium and positive electrode active materials may be recovered and recycled from a discarded sagger that is scrapped during the manufacturing process of lithium secondary batteries and thus the method is expected to reduce the manufacturing costs of lithium secondary batteries.

Abstract: One aspect can provide a system and method for fast Wi-Fi roaming. The system can identify forwarding data associated with a first active session of a first application running on a client device coupled to a home access point (AP), determine a number of neighboring APs comprising a target AP, maintain a roaming cache on each of the neighboring APs, and synchronize the identified forwarding data associated with the first active session to the roaming cache on each neighboring AP. In response to determining that the client device is roaming to the target AP, the system can access the roaming cache on the target AP to obtain the forwarding data associated with the first active session in order to continue the first active session on the client device with reduced roaming latency, thereby facilitating fast roaming of the client device from the home AP to the target AP.

Abstract: A volume liquid fixed-ratio multi-batch mixing valve includes a valve body, including a first inlet liquid chamber, a second inlet liquid chamber and a mixing chamber; a first valve core, controlling liquid inflow into the first inlet liquid chamber; a second valve core, controlling liquid inflow into the second inlet liquid chamber; a liquid drainage valve core, controlling liquid drainage; a rotary shaft includes a first impeller and a second impeller. The first impeller and the second impeller alternately control flow to the first inlet liquid chamber and the second inlet liquid chamber and to the second inlet liquid chamber and the mixing chamber. The first impeller and the second impeller are symmetrically about the rotary shaft; when the first inlet liquid chamber and the second inlet liquid chamber are communicated, the second valve core closes the second inlet liquid chamber and the mixing chamber.

Abstract: A display apparatus having a viewing angle control unit is provided. The viewing angle control unit may be disposed between a back-light unit and a liquid crystal panel. The viewing angle control unit may include a control liquid crystal layer disposed between a lower electrode and an upper electrode. The viewing angle control unit may be switched to a wide viewing angle mode or a narrow viewing angle mode according to voltage applied to the lower electrode and the upper electrode. In the narrow viewing angle mode, each liquid crystal particle of the control liquid crystal layer may be obliquely arranged with respect to the lower electrode and the upper electrode. Thus, an image provided by the display apparatus may be not recognized to peoples around a user, selectively.

Abstract: A volume liquid fixed-ratio multi-batch mixing valve includes a valve body, including a first inlet liquid chamber, a second inlet liquid chamber and a mixing chamber; a first valve core, controlling liquid inflow into the first inlet liquid chamber; a second valve core, controlling liquid inflow into the second inlet liquid chamber; a liquid drainage valve core, controlling liquid drainage; a rotary shaft includes a first impeller and a second impeller. The first impeller and the second impeller alternately control flow to the first inlet liquid chamber and the second inlet liquid chamber and to the second inlet liquid chamber and the mixing chamber. The first impeller and the second impeller are symmetrically about the rotary shaft; when the first inlet liquid chamber and the second inlet liquid chamber are communicated, the second valve core closes the second inlet liquid chamber and the mixing chamber.

Abstract: An access point (AP) in an AP cluster is provided. During operation, the AP can identify a set of Internet Protocol (IP) addresses of permitted devices in a virtual local area network (VLAN) of the AP cluster from a first set of packets. The AP can also identify a set of media access control (MAC) addresses corresponding to the set of IP addresses from a second set of packets. The AP can then generate a whitelist comprising the sets of IP and MAC addresses. The whitelist can indicate addresses of packets permitted to be forwarded via the wireless interface. The AP can identify a target IP address in an Address Resolution Protocol (ARP) request. If the target IP address is absent in the whitelist, the AP can preclude the wireless interface from forwarding the ARP request to clients wirelessly coupled to the wireless interface.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may measure a first energy level of a demodulation reference signal (DMRS). The UE may measure a second energy level of at least one of a tracking reference signal (TRS) or a synchronization signal block (SSB). The UE may determine, based at least in part on the first energy level and the second energy level, a DMRS signal-to-noise ratio (SNR). The UE may perform, based at least in part on the DMRS SNR, channel estimation for a physical channel associated with a communication to determine an estimated channel. The UE may perform, based at least in part on the estimated channel, demodulation processing for the communication. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may measure a first energy level of a demodulation reference signal (DMRS). The UE may measure a second energy level of at least one of a tracking reference signal (TRS) or a synchronization signal block (SSB). The UE may determine, based at least in part on the first energy level and the second energy level, a DMRS signal-to-noise ratio (SNR). The UE may perform, based at least in part on the DMRS SNR, channel estimation for a physical channel associated with a communication to determine an estimated channel. The UE may perform, based at least in part on the estimated channel, demodulation processing for the communication. Numerous other aspects are described.

Abstract: A display device includes: a plurality of pixels, where each of the pixels includes a light emitting device and a pixel circuit coupled to the light emitting device; a scan driver which supplies a scan signal to the pixel circuit; a data driver which supplies a data signal to the pixel circuit; a power supply which supplies a voltage to the pixel circuit; a timing controller which controls the scan driver; a first signal generator which provides a first clock signal to the timing controller; and a second signal generator which provides a second clock signal to the timing controller.

Abstract: The present invention provides use of a soy hull polysaccharide in the preparation of drugs for modulating intestinal flora, reducing blood glucose and blood lipid, and resisting inflammation, and of foods for special medical purpose (FSMPs), and the present invention belongs to the technical field of use of a soy hull polysaccharide. The soy hull polysaccharide provided in the present invention, with an interfacial activity in the intestinal tract, can slow down the absorption of cholesterol or the like; and has the activities for modulating intestinal flora, reducing blood glucose and blood lipid, and preventing intestinal inflammation. The soy hull polysaccharide can be used for preparing drugs for modulating intestinal flora, reducing blood glucose and blood lipid, and preventing and/or treating intestinal inflammation, and for preparing FSMPs.

Abstract: A display apparatus includes a display panel, a data driver, and a power voltage generator. The display panel includes a plurality of pixels and configured to display an image. The data driver is configured to apply a data voltage to the display panel. The power voltage generator is configured to provide a power voltage and an initialization voltage to the display panel. The power voltage generator is configured to receive a feedback initialization voltage from the display panel and configured to compensate the initialization voltage based on the feedback initialization voltage.

Abstract: A display apparatus includes a display panel, a data driver, and a power voltage generator. The display panel includes a plurality of pixels and configured to display an image. The data driver is configured to apply a data voltage to the display panel. The power voltage generator is configured to provide a power voltage and an initialization voltage to the display panel. The power voltage generator is configured to receive a feedback initialization voltage from the display panel and configured to compensate the initialization voltage based on the feedback initialization voltage.

Abstract: A display device includes: a plurality of pixels, where each of the pixels includes a light emitting device and a pixel circuit coupled to the light emitting device; a scan driver which supplies a scan signal to the pixel circuit; a data driver which supplies a data signal to the pixel circuit; a power supply which supplies a voltage to the pixel circuit; a timing controller which controls the scan driver; a first signal generator which provides a first clock signal to the timing controller; and a second signal generator which provides a second clock signal to the timing controller.

Abstract: Provided is a sweeping device for a photovoltaic panel, applied to a photovoltaic unit composed of a plurality of photovoltaic panel arrays arranged in sequence, the sweeping device comprises a guide rail mechanism composed by an upper rail and a lower rail respectively disposed on an upper side and a lower side of respective photovoltaic panel arrays and a plurality of scraper mechanisms for sweeping the plurality of photovoltaic panel arrays, and each photovoltaic panel array corresponds to one scraper mechanism at most, the respective scraper mechanisms are slidably disposed on the guide rail mechanism to which an arbitrary photovoltaic panel array corresponds; the sweeping device further comprises a pull rope mechanism for driving the respective scraper mechanisms to reciprocate on the photovoltaic unit, and a driving mechanism connected with the pull rope mechanism.

Abstract: The semiconductor package according to the present invention comprises: an integrated substrate; a bottom chip stack, which is mounted on the integrated substrate, has multiple memory semiconductor dies stacked chip-on-chip, and takes charge of a part of the whole memory capacity; at least one top chip stack, which is mounted on the bottom package, has multiple memory semiconductor dies mounted therein, and takes charge of the rest of the whole memory capacity; an integration wire for electrically connecting the bottom chip stack and the top chip stack(s); and an integration protection member for sealing the integration wire.

Abstract: A wearable smart device of the present invention comprises: a main body on which a basic module is mounted; a band on which at least one auxiliary module is mounted, which is selectively attached and detached to the main body made of a polymer material or a rubber material to be bent; a connector electrically connecting the main body and the band; and a coupler physically connecting the main body and the band. According to a configuration of the present invention, the present invention is possible in realizing a high-capacity and high-performance smart device.

Abstract: Provided is a sweeping device for a photovoltaic panel, applied to a photovoltaic unit composed of a plurality of photovoltaic panel arrays arranged in sequence, the sweeping device comprises a guide rail mechanism composed by an upper rail and a lower rail respectively disposed on an upper side and a lower side of respective photovoltaic panel arrays and a plurality of scraper mechanisms for sweeping the plurality of photovoltaic panel arrays, and each photovoltaic panel array corresponds to one scraper mechanism at most, the respective scraper mechanisms are slidably disposed on the guide rail mechanism to which an arbitrary photovoltaic panel array corresponds; the sweeping device further comprises a pull rope mechanism for driving the respective scraper mechanisms to reciprocate on the photovoltaic unit, and a driving mechanism connected with the pull rope mechanism.

Abstract: The present invention concerns a method for polishing a phosphate glass or fluorophosphate glass substrate comprising polishing the surface of said substrate using at least a formulation having a pH comprised between 7 and 14 comprising at least a cerium containing abrasive, an anionic water-soluble polymer dispersant, an anti-caking agent, optionally a co-dispersant and water.