Abstract: An ultrasonic water jet apparatus includes a water accumulation part in which the water supplied from a water supply source is temporarily accumulated, a jet port that jets the water accumulated in the water accumulation part, and a piezoelectric vibration plate including a dome part that is disposed opposed to the jet port in the water accumulation part and propagates the ultrasonic vibration to the water accumulated in the water accumulation part, a flange part that projects outward in the radial direction from a peripheral edge of the dome part, and an annular plate that projects outward in the radial direction from a peripheral edge of the flange part.

Abstract: A rotary atomization device includes a housing, a blowing device, a rotating drive device, a rotating shaft, a gas tube and an atomizing structure. The housing has an atomization room and a containing room which are communicated by a gas channel. The blowing device is arranged in the containing room, and the rotating drive device is arranged in the containing room or the atomization room. A drive shaft of the rotating drive device is connected with the rotating shaft connected with the gas tube. One end of the gas tube is arranged in the atomization room and has a gas inlet, and the other end is extended out of the housing and has a gas outlet. The atomizing structure is disposed on the bottom of the atomization room, and the blowing device blows towards the gas channel. The rotary atomization device can realize rotary spraying.

Abstract: A mesh nebulizer that atomizes and ejects liquid through a mesh portion includes a vibration portion including a vibration surface facing upward, a liquid supply portion that supplies liquid toward the vibration surface of the vibration portion, a sheet including the mesh portion, and a support frame that supports a peripheral edge of the sheet. The support frame includes a bottom plate that supports a lower surface of the peripheral edge of the sheet, the bottom plate having a flat annular shape, and a larger inner diameter than a diameter of the vibration surface, and a protrusion radially protruding inward from the bottom plate. The sheet including the mesh portion faces the vibration surface at an inclination angle and is in contact with a first portion of a peripheral edge of the vibration surface.

Abstract: A dispensing apparatus, a liquid dispensing method, and a cell dispensing method which can dispense liquid with very high accuracy. A dispensing apparatus includes a glass pipette, a tubular elastic member, a rod-shaped member, and a piezoelectric element actuator. A portion of the tubular elastic member located adjacent to a first open end thereof covers a portion of the glass pipette located adjacent to an opening portion thereof. A portion of the tubular elastic member located adjacent to a second open end thereof covers at least a forward end portion of the rod-shaped member. When the piezoelectric element actuator pushes the rod-shaped member toward the opening portion of the glass pipette, the tubular elastic member deforms such that the volume of the internal space of the tubular elastic member decreases.

Abstract: There is provided a liquid discharge head, including: a nozzle member formed having nozzle rows extending in a first direction, the nozzle rows being arranged in a second direction; driving elements; a first channel member disposed at one side of the nozzle member in a third direction; a second channel member disposed at the one side of the first channel member in the third direction; and a third channel member disposed at the one side of the second channel member in the third direction.

Abstract: An electronic device for producing an aerosol for inhalation by a person includes a mouthpiece, a liquid container, and a mesh assembly having a mesh material and a piezoelectric material. The mesh material is in contact with a liquid of the container. The mesh material is configured to vibrate when the piezoelectric material is actuated, whereby the aerosol is produced. The aerosol may be inhaled through the mouthpiece. The device also includes circuitry and a power supply for actuating the mesh assembly. The mouthpiece, the container, and the mesh assembly are located in-line along a longitudinal axis of the device between opposite longitudinal ends of the device, with the mesh assembly extending between and separating the mouthpiece and the container. The mesh material has a rigidity that is sufficient to prevent oscillations of varying amplitudes during actuation of the piezoelectric material of the mesh assembly for consistently producing the aerosol.

Abstract: Multi-dose ocular fluid delivery devices are provided. Aspects of the fluid delivery devices include a fluid package and an actuator. The fluid package includes a reservoir of an ophthalmic formulation, an aperture and a valve member for sealing the aperture when fluid is not being ejected therethrough. The actuator is configured to operate the valve member so as to at least reduce, if not prevent, ingress of outside materials or contaminants into the reservoir, such that the ophthalmic formulation present in the reservoir does not require a preservative (e.g., where a preservative-free ophthalmic formulation is present in the reservoir). Also provided are methods of using the devices in fluid delivery applications, as well as a kit that includes components of the devices.

Abstract: A handheld misting device has a housing having a dispensing window is arranged and configured to contain a sonic generator, a power source coupled to the sonic generator, a plurality of reservoirs, each containing a liquid, and a plurality of nozzles, each nozzle arranged and configured for removable coupling to the sonic generator. Each nozzle is associated with and in liquid communication with a single reservoir. The sonic generator includes a converter and an elongate horn having a proximal end coupled to the converter and a distal end, and the nozzle is removably coupled to the distal end of the horn. Thus, the device delivers the liquid through a delivery opening formed in the nozzle, and activating the sonic generator energizes the liquid in the nozzle to generate an aerosol plume that is delivered through the dispensing window.

Abstract: An atomizer device can include a container for storing liquid for atomization, the container defining a top portion and a bottom portion, the top portion defining a mist opening. An ultrasonic transducer can be located at the bottom portion of the container and configured to generate waves in the liquid. A sleeve can extend from the bottom portion toward the top portion of the container. The sleeve can be configured to direct the waves along a longitudinal axis of the sleeve. A float can be located within the sleeve and be configured to move along the longitudinal axis of the sleeve. The float can define a through hole, wherein the waves are concentrated toward a surface of the liquid by passing through the through hole.

Abstract: An aerosol delivery system that includes an aerosol generator that aerosolizes a fluid for delivery to a patient. The aerosol generator includes a housing with a fluid chamber that fluidly communicates with a housing inlet and a housing outlet. Within the housing, the aerosol generator includes a support plate with an aperture that fluidly communicates with the housing outlet. A vibratable member couples to the support plate across the aperture. A piezoelectric actuator also couples to the support plate, and in operation expands and contracts to vibrate the vibratable member, which aerosolizes a fluid. The aerosol generator receives fluid through a fluid conduit that couples to the housing.

Abstract: A method of controlling application of at least one material onto a substrate includes configuring a material applicator having an array plate with an applicator array. The applicator array has a plurality of micro-applicators with a first subset of micro-applicators and a second subset of micro-applicators. Each of the plurality of micro-applicators has a plurality of apertures through which fluid is ejected. The first subset of micro-applicators and the second subset of micro-applicators are individually addressable, and a liquid flows through the first subset of micro-applicators and a shaping gas, e.g., air, flows through the second subset of micro-applicators. The flow of shaping gas shapes the flow of the liquid from the first subset of micro-applicators to the substrate.

Abstract: In one arrangement, a vibration system includes a vibratable plate, a support member surrounding the vibratable plate, and a vibration-inducing member surrounding the support member. The vibration-inducing member is configured to radially expand and contract against the support member so as to produce axial vibration of the vibratable plate. In another arrangement, the vibratable plate has an outer circumference; a tubular member is concentrically disposed about the outer circumference of the plate, and an annular vibration-inducing member is concentrically disposed about the outer circumference of the tubular member. The vibration-inducing member is preferably a piezoelectric ring that is radially expandable and contractable against the wall of the tubular member to cause the plate to vibrate in the axial direction.

Abstract: A fog generator assembly includes a water vapor generator, a fragrance dispenser, and a mixing element fluidly coupled to the water generator and the fragrance dispenser. The mixing element is configured to mix a fog of water vapor from the water vapor generator with a fragrance from the fragrance dispenser to produce an aromatic fog.

Abstract: A fluid filling apparatus for filling containers with a fluid is provided. An ultrasonic frequency is used to vibrate a filling nozzle between successive container filling cycles. The vibrations break a liquid string filament formed at a discharge end of the filling nozzle at the end of each filling cycle. Methods and a fluid filling nozzle for filling containers with a fluid are also provided.

Abstract: This invention is in the field of medical devices. Specifically, the present invention provides portable medical devices that allow real-time detection of analytes from a biological fluid. The methods and devices are particularly useful for providing point-of-care testing for a variety of medical applications.

Abstract: In one aspect, embodiments of the present invention provide an aerosolization device for ensuring proper delivery of an aerosolized medication to a user's respiratory system. The aerosolization device may include a conduit, an aerosol generator, a restrictor disposed within the conduit, and an indicator mechanism. The conduit may include a mouthpiece end by which a user may cause inspiratory flow through the conduit. The aerosol generator may include a vibratable mesh. The restrictor may define a plurality of apertures disposed along an outer periphery of the restrictor configured to provide an increase in pressure differential that varies with an inspiratory flow rate within the conduit and to provide a relatively laminar flow downstream of the restrictor compared to upstream of the restrictor. The indicator mechanism may indicate to a user a state of a parameter of the inspiratory flow relative to a predefined desired range.

Abstract: A door access control method includes detecting whether a person is intending to pass through a door access control device. Then, it is identified whether a body temperature of the person near the door access control device exceeds a threshold value. The door access control device carries out an unlocking judgment procedure when the body temperature is below the threshold value. The unlocking judgment procedure is not carried out when the body temperature is not below the threshold value. Next, it is identified whether the person is qualified to pass through the door access control device based on the unlocking judgment. The door access control device remains in a locking state when the person is identified as not qualified to pass through the door access control device. The unlocking state is lifted when the person is identified as qualified to pass through the door access control device.

Abstract: Provided is a valve device which can precisely adjust the flow rate while ensuring the flow rate of the fluid. A valve device includes a main actuator which receives a pressure of a supplied drive fluid and moves an operating member to an open position or closed position; an adjusting actuator arranged to receive at least a part of a force generated by the main actuator and for adjusting the position of the operating member positioned at the open position; and a pressure regulator provided in a feed path of the drive fluid to the main actuator and for regulating the pressure of the supplied drive fluid to suppress fluctuation of the pressure of the drive fluid supplied to the main actuator.

Abstract: An acoustic isolation device includes a sleeve having a length, central axis along the length, a first end and a second end and an interior between the first end and second end, the cylindrical sleeve further comprising at least one resiliently deformable section between the first end and the second end along a least a portion of the length of the cylindrical sleeve allowing the cylindrical sleeve to be deflected, and a tab stop structure positioned along the length of the deformable section of the cylindrical sleeve and having at least one tab stop positioned in the sleeve, the cavity providing a gap around one or more sides of the at least one tab stop, wherein the at least one tab stop is movable within the cavity as the sleeve is deformed but restricts the sleeve from being deformed by more than a predetermined amount or estimated amount.

Abstract: The invention relates to a submersible-type humidifier that adding water from upper portion, comprising a lower water tank and a top cover connected thereto, the lower water tank and the top cover are detachably connected, an electric appliance chamber is arranged in inner chamber of the top cover, an air blower and a display control panel are arranged inside the electric appliance chamber, an energy gathering atomization pipe is provided on bottom of the top cover, an ventilation portion is provided on outer side of the energy gathering atomization pipe, air blower is connected to the ventilation portion, inner chamber of the energy gathering atomization pipe is respectively connected with the ventilation portion and mist outlet of the top cover, an atomization component is provided on bottom of the energy gathering atomization pipe, the atomization component and the air blower are respectively electrically connected to the display control panel.

Abstract: An apparatus is provided for nebulising a liquid from a liquid supply through a membrane comprising first and second surfaces and a plurality of apertures extending through the membrane. The apparatus comprises an area for receiving a liquid supply, arranged to deliver a liquid to the first surface of the membrane, a vibrator member, arranged to vibrate the membrane to eject liquid droplets from the front surface of the membrane on vibration; and a mechanical coupling means, arranged to provide a removable mechanical clamping force for clamping the membrane to the vibrator member. Various means for implementing the mechanical coupling are provided, and liquid containers and membranes for use in the device are proposed.

Abstract: A valve for adjusting a fluid flow includes a valve cartridge with at least one first fluid opening, at least one second fluid opening, a preliminary stage with a first valve seat and a first closing element, and a main stage with a second valve seat and a second closing element. The first valve seat is at a first axial through-opening of the second closing element, which is at least partly in a preliminary stage sleeve. The first valve seat is within the preliminary stage sleeve, and a flow path from the at least one first fluid opening to the preliminary stage leads through at least one inflow opening, which is radially introduced in the preliminary stage sleeve. An axial filter gap formed between an actuation element and the preliminary stage sleeve overlaps the at least one inflow opening at least in some regions and together form a filter.

Abstract: An atomiser device for dispensing a fragrance composition into the air. The device comprising an ultrasonic atomiser and a refill comprising a fragrance composition. The invention also includes a method of fragrancing the air utilising the atomiser device. A refill of the fragrance composition suitable for use in the atomiser device.

Abstract: A fuel injection device is provided with a valve body, a nozzle needle, a movable plate, and a support spring. The valve body has a control chamber therein. The control chamber is defined by a defining wall which has a dividing wall portion. The dividing wall portion divides the control chamber into an accommodation chamber and a backpressure chamber. The accommodation chamber accommodates a movable plate and a support spring. A fuel pressure in the backpressure chamber is applied to the nozzle needle. The dividing wall portion has a restriction hole fluidly connecting the accommodation chamber and the backpressure chamber with each other, and a support surface supporting the support spring.

Abstract: A method of depositing single particles onto a target includes loading a particle suspension to a droplet dispenser having a suspension reservoir and a nozzle section, detecting particles in the nozzle section, testing a single particle condition of the droplet dispenser, and determining whether an ejection region of the nozzle section includes one single particle. The method further includes operating the droplet dispenser for dispensing a droplet such that the droplet is dispensed onto the target if the single particle condition is fulfilled, or the droplet is dispensed into a collection reservoir if the single particle condition is not fulfilled. The step of testing the single particle condition further includes determining whether a sedimentation region adjacent to the ejection region is free of particles. A dispenser for performing the method is also provided.

Abstract: Various apparatus and methods for the atomization of fluid are disclosed herein. In one aspect, an apparatus for atomization of fluid includes a piezoelectric transformer comprising an electrode which is in communication a source of alternating current (AC) voltage at a proximate end of the piezoelectric transformer. A wick which is capable of absorbing a liquid is in contact with the piezoelectric transformer at the distal end, and the piezoelectric transformer is capable of inducing an electrospray of the liquid at the distal end.

Abstract: A nozzle plate (201) for use in a liquid droplet production apparatus and such apparatus, the nozzle plate comprising a flexible substrate having a linear array of nozzles that extend through said plate, said nozzles being arranged in at least one line, forming thereby a nozzle-bearing region, wherein the substrate is curved so as to impart an increased longitudinal stiffness to it. The apparatus comprises a piezo actuator (202, 203), which may have slots (211) separating fingers acting on the nozzle plate (201). The nozzle plate may be separable form the actuator.

Abstract: An adjustable misting system and method for treating a region of a biological surface is presented. In an embodiment, a reconfigurable misting nebulizer includes a first misting panel having a plurality of apertures configured to atomize a formulation, and a second misting panel coupled to the first misting panel having a plurality of apertures configured to atomize the formulation. In some embodiments, a relative position of the first misting panel with respect to the second misting panel is adjustable.

Abstract: A mesh nebulizer includes a main body including a recess with a shape that is open upward. The main body includes a vibration portion with a vibration surface, and a liquid supply portion that supplies the liquid onto the vibration surface. The mesh nebulizer also includes a cap that openably and closeably covers the upper portion of the main body, and a replacement member that is separate from the main body and the cap and detachably mounted in the recess of the main body in advance when the nebulizer is to be used. The replacement member includes a film mesh portion, a bottom plate portion, and a side wall portion. When the cap is closed with respect to the main body, the protrusion portion of the cap presses the bottom plate portion of the replacement member toward the bottom surface of the recess, thus positioning the replacement member in the vertical axis direction of the main body.

Abstract: A compact apparatus for atomisation of fluid samples comprises a sonotrode (11), placed so that an ultrasonic wave emitted by the sonotrode is directed through a channel (25) in a separate channel device (21) and reflected by from the interface (26) in a high-low impedance transition zone (Tz), so that a standing wave is formed within the channel. A positive air flow through the channel, driven by a pressure differential at each end of the channel, interacts with the working fluid or slurry being delivered by a fluid delivery device (30) to atomise it. The speed of the air flow and the dispersal, homogeneity, and size of particles in the slurry sample can be controlled by varying the shape of the channel outlet.

Abstract: Apparatuses, systems, methods, and computer program products are disclosed for a diffuser and interchangeable cover. A complete diffuser includes a diffuser element that disperses a liquid into air within a diffuser chamber of the complete diffuser. A complete diffuser includes a lid shaped to at least partially enclose an upper opening of a diffuser chamber. A cover is removably couplable to a complete diffuser over a diffuser lid so that a dispersed liquid passes through one or more openings in the cover. A cover includes one or more decorative features having a different external shape than a complete diffuser that receives the cover.

Abstract: An assembly for use in a liquid droplet apparatus comprises a vibrating element (201), an aperture plate (205) and a vibrating platform (203). The vibrating platform is positioned between the vibrating element and the aperture plate for conveying vibrations from the vibrating element to the aperture plate. The vibrating platform (203) is structured such that the aperture plate (205) is located within a cavity (202) formed in the vibrating platform.

Abstract: A piston device having an inlet through which the piston device can receive liquid and an outlet through which the piston device can inject pressurize liquid. A main body (28) of the piston device defines an inner chamber and an upstream duct placing the inner chamber in fluidic communication with the inlet. A valve having a valve plate, which is movable along a plate actuation path, between at least an opened position of the plate and a closed position of the plate. The plate actuation path extending at least in part inside the upstream duct.

Abstract: Disclosed is an essence atomizer having an integrally formed universal connector, comprising: an atomizer universal connector integrally formed into a pipe piece, and an outer shell. Wherein, the pipe port of the first end portion is greater than the pipe port of the second end portion. On the pipe port of the first end portion is disposed inward in sequence a front connection port, the inner threads, and a bottom groove for placing a rubber ring. While on the pipe port of the second end portion is disposed an expansion ring connected to an atomizer plate, an oil prevention pad, and a nozzle cover. The essence atomizer is compact in size and simple in structure Since the essence atomizer is integrally formed into a piece, so it requires less components, and the production process can be reduced.

Abstract: The jet apparatus includes a nozzle having an injection reference position, an impact force distribution measuring body including a measurement reference position corresponding to the injection reference position, and a plurality of impact force detectors arranged in a lattice pattern on a plane, each impact force detector detects an impact force per unit area of the jet, and a control device including a threshold storage unit, an impact force distribution measuring unit measuring an impact force distribution based on the impact force detected by the impact force detectors when the jet collides with the impact force distribution measuring body, an evaluation value extraction unit extracting an evaluation value based on the impact force distribution, and an evaluation unit determining whether or not the nozzle is adaptive based on comparison result of the evaluation value and the threshold.

Abstract: Disclosed is an adjustable ultrasonic micro-jet nozzle array with minimal quantity lubrication, relating to cooling of machining. The array-type nozzle includes an inlet conduit, a recycle conduit and a cooling body having a microjet ejection assembly and a recycling assembly. The cooling body includes a microjet ejection chamber which is closed. The inlet conduit is provided at a top of the cooling body and communicates with the microjet ejection chamber. The recycle conduit is located in the microjet ejection chamber, and connects the recycling assembly and an external vacuum machine. The adjustable ultrasonic micro jet nozzle array of the present invention has the advantages of simple structure and being convenient to use. A flow rate of trace cooling fluid is increased to improve the cooling and lubricating effect. A cooling fluid mist is recycled by the vacuum suction to reduce the consumption of the lubricating fluid while ensuring the cooling effect.

Abstract: Systems and methods are provided for determining the organic silicon content of petroleum fractions, such as refinery fractions. This can be achieved in part based on performing solvent-enhanced selective filtration on a hydrocarbonaceous sample to substantially remove inorganic silicon from the sample while retaining at least a substantial portion of the organic silicon in the sample. After the solvent-enhanced selective filtration, the organic silicon content of the filtered sample can be determined. The ability to determine the organic silicon content of a sample can be used to identify crude fractions and/or refinery fractions that may cause contamination problems within a refinery while reducing or minimizing the occurrence of false positive tests that could result from detection of inorganic silicon.

Abstract: A volatile material dispenser may include a housing adapted to hold a refill containing a volatile material and a nebulizer in communication with the refill and the volatile material within the refill, wherein the nebulizer is adapted to volatilize and emit the volatile material as nebulized particles. The nebulizer may include a piezoelectric element having a central aperture and first and second opposing surfaces and an orifice plate disposed adjacent the first surface of the piezoelectric element.

Abstract: The invention relates to a method of manufacturing a vibratable head (1) for an aerosol generator (2), the vibratable head (1) comprising a support member (4), a vibratable membrane (6) supported by the support member (4) and a vibrator (8) configured to vibrate the vibratable membrane (6). The method comprises the steps of providing the support member (4), roughening a surface portion (10) of the support member (4) by laser structuring, applying an adhesive (9) to at least a part of the roughened surface portion (10) of the support member (4) and attaching at least one element to the support member (4) by at least a portion of the adhesive (9). Further, the invention relates to a vibratable head (1) manufactured by this method, an aerosol generator (2) comprising such a vibratable head (1) and a method of manufacturing such an aerosol generator (2).

Abstract: A measurement device for a human respiratory system function comprises a respiration measurement device (20). The respiration measurement device (20) receives a respiratory air flow and senses the respiratory air flow to generate a set of sensing signals, and performs calculation according to the sensing signals to generate a human respiratory system parameter, the sensing signals comprising at least an absolute pressure of the respiratory air flow. The respiration measurement device (20) comprises a respiration measurement channel (21). The absolute pressure generated by a respiratory air flow of a user in the respiration measurement channel (21) that is in a single-end sealed state is measured. The absolute pressure corresponds to the pressure in the lung of the user.

Abstract: An electronic device includes a casing, a speaker enclosure and an actuating and sensing module. The casing has an opening. The speaker enclosure is disposed within the casing to enclose a speaker. The speaker enclosure is in communication with the opening of the casing. The actuating and sensing module is disposed within the speaker enclosure. The actuating and sensing module comprises a fluid transportation device and a sensor. The fluid transportation device is driven to transport a fluid from outside the casing into the speaker enclosure through the opening of the casing to make the fluid sensed by the sensor.

Abstract: An ultrasonic medical treatment probe has a head with a distal-most circular rim extending along an endless uninterrupted perimeter around a broad recess and formed with a series of serrations or teeth. The rim is thin in comparison to the width of the recess. The serrations or teeth preferably extend continuously along an entire circumference or length of the rim. The probe head is provided along the rim with a plurality of notches or openings communicating with the recess.

Abstract: A synthetic jet actuator and a method for optimizing a synthetic jet actuator to meet operating requirements and physical constraints may include estimating dimension and a resonance frequency of an air cavity of the synthetic jet actuator, and using the estimated resonance frequency to the estimate dimensions of a piezoelectric actuator of the synthetic jet actuator. Individual simulations of the air cavity and piezoelectric actuator, and a coupled simulation may be performed using the estimated dimensions, and the dimensions may be revised and simulations re-executed to match the resonance frequencies of the air chamber and the piezoelectric actuator. The method maybe yield a synthetic jet actuator having a resonance frequency of the piezoelectric actuator that is approximately equal to a quarter-wavelength resonance frequency of the air cavity.

Abstract: The invention relates to a gas valve for metering a gaseous fuel into an intake tract of an internal combustion engine, comprising an electromagnet (1) for acting on an armature (2), which can be moved in a reciprocating manner and which is loaded in the direction of at least one valve seat (3) by the spring force of a spring (4). According to the invention, a damping device (5) is provided for reducing the speed of the armature (2) at least over a partial range of the stroke of the armature, which damping device comprises at least one fluid-filled variable damper volume (5.1, 5.2), which is separated in a gas-tight manner from a region (30) into which the gas to be metered in is admitted.

Abstract: An aerosol generation device includes an ergonomically correct unibody within which an aerosol generation device is enclosed. The unibody integrates components of the aerosol generation device into a sleek form factor designed for portability, whereby each component blends into the aesthetics defined by the unibody while providing reusable functionality. Airflow detection is used to activate aerosol generation and spacial orientation detection is used to activate status updates such as battery charge level and solution fill level. A user may define a rate of atomized solution that may be produced by the aerosol generation device through external control of the frequency of operation of the aerosol generation device. Use of medical-grade stainless steel and other hygienically correct components contribute to reusability and, therefore, the reduction of non-biodegradeable waste.

Abstract: An ejector device and method of delivering safe, suitable, and repeatable dosages to a subject for topical, oral, nasal, or pulmonary use is disclosed. The ejector device includes a housing, a reservoir disposed within the housing for receiving a volume of fluid, and an ejector mechanism in fluid communication with the reservoir and configured to eject a stream of droplets, the ejector mechanism comprising an ejector plate coupled to a generator plate and a piezoelectric actuator; the piezoelectric actuator being operable to oscillate the ejector plate, and thereby the generator plate, at a frequency and generate a directed stream of droplets.

Abstract: Personal care devices (or apparatuses) are described to deliver/activate a bioactive compound/botanical compound/biologically active molecule (including a regulatory protein/growth factor) or a mixture of bioactive compounds/botanical compounds/biologically active molecules (including regulatory proteins/growth factors) for growth and protection of hair or rejuvenation and protection of skin, which utilizes nanoencapsulation/nanoemulsion and/or activation/photoactivation. Such devices (or apparatuses) utilize a light low intensity module/x-ray and nanooptical elements/three-dimensionally (3-D) printed micro/nanostructures.

Abstract: A liquid ejecting apparatus includes a drive circuit that outputs a drive signal, a criterion voltage circuit that outputs a criterion voltage signal from a criterion voltage-signal output terminal, a piezoelectric element that includes a first electrode to which the drive signal is supplied and a second electrode to which the criterion voltage signal is supplied, a cavity, and a vibration plate which is provided between the cavity and the piezoelectric element. The criterion voltage circuit includes a voltage generation unit that generates the criterion voltage signal, and a voltage detection unit that detects a voltage value of the criterion voltage signal. In a case where the voltage value of the criterion voltage signal is greater than a first threshold, the voltage detection unit stops an operation of the voltage generation unit and electrically connects the criterion voltage-signal output terminal and a ground terminal to each other.

Abstract: The invention discloses a low-frequency electrostatic ultrasonic atomization nozzle that relates to an electrostatic atomizer in the field of agricultural engineering. The low-frequency electrostatic ultrasonic atomization nozzle comprises a transducer back cover, piezoelectric ceramics, a transducer front cover, an ultrasonic horn and a fastening screw. Furthermore, the fastening screw is set through the transducer back cover, the piezoelectric ceramics and the center round hole of the transducer front cover in sequence; a liquid inlet channel is designed in the axial center of the ultrasonic horn; an air intake channel is designed in a position that deviates from the axial center; the top of the ultrasonic horn is machined as a concave spherical surface; and a suspended ball is arranged on the concave spherical surface.

Abstract: Nebulization systems to generate a mist of microdroplets of a liquid for the purpose of refreshing the atmosphere. Such nebulization systems are sized for mounting on a sales display for humidifying and refreshing fresh products displayed for sale.