Abstract: A media access control (MAC) address allocation method and device are disclosed. The method includes: a wireless access point device sending a notification message on a wireless medium. The notification message includes at least one candidate virtual MAC address. The wireless access point device receiving, on the wireless medium, a request message from a terminal device. A source address of the request message is a first virtual MAC address. The first virtual MAC address is one of the at least one candidate virtual MAC address.

Abstract: Provided are a data acquisition system and method. The system includes: data acquisition units, to acquire a plurality of pieces of data related to a target object within a data acquisition period; and a controller, communicatively connected to the data acquisition units, to set, according to an ith data acquisition period, a sampling interval time of the ith piece of data, and to set a polling interval time according to a minimum data acquisition period of the data acquisition units. Upon the controller starting to perform polling on the data acquisition units through n_1 polling interval times until a condition is satisfied for the first time, the controller performs first polling, for the ith piece of data, on a data acquisition unit of the data acquisition units for acquiring the ith piece of data.

Abstract: A method for determining thickness of layers of the tear film includes reconstructing a full- or hyper-spectral interference pattern from an imaged multi-spectral pattern. Tear film thickness can then be estimated from the full- or hyper-spectral interference pattern. Using a full- or hyper-spectral interference pattern provides a greater number of frequency sampling points for increased tear film thickness estimation accuracy, without traditional time consuming techniques.

Abstract: Gas distribution apparatuses, e.g., showerheads, comprise passages having a first conical bore section, a small bore section, and a second conical bore section. The first conical bore sections comprise a first non-perpendicular wall angle relative to a back surface of a faceplate. The second conical bore sections comprise a second non-perpendicular angle to a front surface of the faceplate. The conical sections including non-perpendicular angles are effective to mitigate and/or eliminate changes in flow parameters through the passages after bead blast processes.

Abstract: A water outlet device for different water sprays from a same nozzle comprises a water outlet portion, and a control mechanism, the water outlet portion comprises a water outlet nozzle, the water outlet nozzle comprises a water outlet, the water outlet nozzle further comprises at least two water inlets, flow directions of the at least two water inlets are not parallel to a flow direction of the water outlet, the control mechanism is connected to the at least two water inlets to control a water inlet condition of each of the at least two water inlets, the water inlet condition comprises at least one of a flow volume or whether the water is flowing or not flowing, and the control mechanism controls the water inlet condition of each of the at least two water inlets to enable the water outlet nozzle to discharge the different water sprays.

Abstract: Variable optical attenuator assisted control of optical devices is provided. A device comprises: an uncooled laser and ring resonator modulator, an optical waveguide configured convey an optical signal of the laser from an input to an output, a heater that heats the ring resonator modulator, a variable optical attenuator that attenuates the optical signal on the optical waveguide, one or more power monitors and a controller. The controller is configured to: in response to determining that one or more of: heater power overhead is unavailable to reduce heater power for laser wavelength tracking; and the heater power is at or below a given lower heater power; and determining that that laser current is increased to assist with ring resonator modulator control for the laser wavelength tracking: control, using the one or more power monitors, attenuation of the VOA to control the output power into a target output power range.

Abstract: A method of forming a compound having the formula: includes the reaction: n the presence of a base comprising teat-butyl lithium, lithium diisopropylamide, sodium hydroxide, potassium hydroxide, lithium hydroxide, a potassium alkoxide or a sodium alkoxide to achieve a yield of at least 90%, wherein X is a halo atom selected from the group consisting of Cl, Br and I.

Abstract: This application discloses a method for performing secure boot based on a redundant cryptographic algorithm and a device. The method includes: obtaining first indication information and second indication information, and updating first baseline information based on the first indication information and the second indication information. The first indication information uniquely identifies a first cryptographic algorithm, the second indication information is used to instruct a network device to update the first cryptographic resource baseline information stored in a secure storage entity, and the first cryptographic resource baseline information is used to perform integrity verification on a first cryptographic resource used by the network device in a secure boot process.

Abstract: An interferometric method of identifying the thickness of an object that is too thin to be resolved by a Fourier transform of the interference signal includes applying a harmonic frequency modulation to an envelope of the interference signal. Where the object is a tear film, this method may be utilized to determine a thickness of the lipid layer of the tear film.

Abstract: Apparatus for processing a substrate are provided herein. In some embodiments a showerhead assembly includes a gas distribution plate having a plurality of apertures; a holder having a wall, an radially inwardly extending flange extending from a lower portion of the wall and coupled to the gas distribution plate, and a radially outwardly extending flange extending from an upper portion of the wall, wherein the wall has a thickness between about 0.015 inches and about 0.2 inches; and a heating apparatus disposed above and spaced apart from the gas distribution plate, wherein the heating apparatus includes a heater configured to heat the gas distribution plate.

Abstract: The present disclosure may provide a radio frequency transmission device. The radio frequency transmission device may include: a radio frequency power amplifier (RFPA) configured to produce a radio frequency signal; and a transmitter coil status selection module configured to transmit the radio frequency signal to at least one of a plurality of radio frequency coils. The RFPA and the transmitter coil status selection module may be housed in a device chamber.

Abstract: A curable film-forming composition is provided, comprising: (a) a polymeric binder comprising reactive functional groups; (b) a curing agent comprising functional groups that are reactive with the reactive functional groups of (a); and (c) a polysiloxane resin comprising aromatic functional groups and terminal active hydrogen groups. In certain examples of the present invention, the polymeric binder (a) comprises an acrylic polyol prepared from a monomer mixture comprising a hydroxyl functional monomer, and the curable film-forming composition further comprises a rheology modifier comprising: (1) a non-aqueous dispersion of an internally crosslinked organic polymer; (2) a silica dispersion; and/or (3) a reaction product of an amine and an isocyanate. Also provided are coated substrates that include the curable film-forming compositions described above and methods for forming a composite coating on a substrate.

Abstract: Systems and methods for improving output stability of an RFPA. The systems may obtain an initial radio frequency signal to be amplified by the RFPA. The systems may also generate a compensated radio frequency signal by performing, based on a preset compensation rule and a set of compensation parameters, a gain compensation operation for the initial radio frequency signal. The set of compensation parameters may include a supply voltage of the RFPA and a transistor junction temperature of the RFPA. The systems may further generate, by performing a non-linear correction operation on the compensated radio frequency signal, a corrected radio frequency signal, which is transmitted to the RFPA.

Abstract: A method for content caching in information centric network virtualization includes receiving, by a first node, a first data packet; in response to a cache distance identifier hop of the first data packet being less than a preset maximum cache distance, setting hop=hop+1 and sending the first data packet to a next node by the first node; in response to the hop being not less than the preset maximum cache distance and there being available cache space in the first node, setting hop=0, storing the first data packet, and sending the first data packet to the next node by the first node. The node determines whether to cache a data packet based on the cache distance identifier of the data packet, which comprehensively considers the cache energy consumption caused by caching the data packet in the node and the transmission energy consumption caused by transmission of the data packet in the link, thereby effectively reducing the total energy consumption of the network.

Abstract: Techniques for improving complex database queries are provided. A determination is made whether to adopt a static or dynamic query execution plan for a received database query based on metrics. When a dynamic query execution plan is adopted, the database query is separated into query fragments. A plan fragment is generated for each query fragment and executed to generate feedback for the plan fragment. The feedback from the execution of each plan fragment is used to initiate query rewrite rules to simplify the corresponding query fragments. The rewritten query fragments are combined to generate the dynamic query plan.

Abstract: A method for shutting off water that is applied to a water outlet device, which comprises enabling a volume of a variable chamber to increase to form a negative pressure chamber to suck residual water in a water outlet chamber into the negative pressure chamber by releasing negative pressure at a connection of the variable chamber and the water outlet chamber when the water is shut off. A method for shutting off water that is applied to a water outlet device, which comprises enabling a water shut-off sealing member to hermetically seal a connection of a water outlet hole and a water outlet chamber by a volume of air in the water outlet chamber of the water outlet device increasing to generate negative pressure when the water is shut off. A water outlet device is provided.

Abstract: A computer-implemented method includes: monitoring, by a computing device, performance of currently deployed virtual machines (VMs) that implement particular services; determining, by the computing device, optimal configuration options for deployment of new VMs that implement one or more of the particular services based on the monitoring the performance of the currently deployed VMs; and outputting, by the computing device, information regarding the optimal configuration options to a user requesting the deployment of a new VM implementing one or more of the particular services.

Abstract: A biological analysis device for performing capillary electrophoresis includes a voltage section configured to generate a voltage differential across a cathode connector and an anode connector, an optical detector system configured to detect light emission from a sample, a temperature regulation section, and a cartridge holding portion configured to receive at least a portion of a removable cartridge comprising one or more capillaries and a separation medium container. The biological analysis device may include one or more actuators configured to actuate components of the removable cartridge when the removable cartridge is received in the cartridge holding portion. Devices and methods relate to biological analysis.

Abstract: A bubble water generating device, including: a flow divider, a mixer, an air intake runner, and a water outlet cover the flow divider includes at least one first water inlet hole; a first chamber is formed between the mixer and the flow divider; the mixer includes at least one second water inlet hole corresponding to the at least one first water inlet hole one by one, and at least one return hole; the flow area of each second water inlet hole is greater than that of the corresponding first water inlet hole, the return hole, the first water inlet hole and the second water inlet hole are all communicated with the first chamber; the air intake runner is communicated with the first chamber; a second chamber communicating with the second water inlet hole and the return hole is formed between the water outlet cover and the mixer.

Abstract: The present disclosure discloses a waterway switching mechanism comprising a mounting portion, a water dividing plate, and a driving mechanism. The mounting portion comprises at least one water dividing passage, and the water dividing plate cooperates with the at least one water dividing passage to switch a waterway through rotation of the water dividing plate. A third upper guiding surface of the movable block contacts and couples to a first inner guiding surface of the water dividing plate to enable the movable block to move to drive the water dividing plate to rotate in a first direction. The movable block cooperates with a fixing guiding surface of an upper matching portion of the mounting portion to enable the push rod to move to drive the movable block and the water dividing plate to rotate in the first direction.