An improvement to a roadside sprayer fixates spray nozzles on a registration plate. The registration plate may include integral tabs depending on the application. Inclination of the tabs is adjustable to place streams and droplets in a desired swath coverage. With the nozzles rigidly mounted onto the plate, the entire plate is nutated. The use of the registration plate in a spray unit creates a uniform nutation among the nozzles, thereby reducing variability in droplet placement, and providing a more predictable spray from the nozzles. In other embodiments, the spray unit is utilized in a spray system adaptable to service vehicles, and may be utilized in conjunction with a vegetation engagement device, such as a cutter to engage multiple zones of a roadway right-of-way. Additionally, an improved spray unit includes an electromagnetic field and an attractor to generate plate motion.

A sprayer including a fluid carrier having an inlet configured to receive water from a water source and an outlet for emitting water, and including a vibration source coupled to a portion of the fluid carrier between the inlet and the outlet. When the sprayer is in a first mode of operation, water is emitted from the outlet in a first pattern; and when the sprayer is in a second mode of operation, the vibration source is configured to oscillate the fluid carrier such that water is emitted from the outlet in a second pattern.

Disclosed is an ultrasonic electronic cigarette atomizer. An atomizer shell, an atomization piece and a liquid guide structure are arranged in the atomizer shell. The liquid guide structure communicates with a liquid storage cavity in the atomizer shell. A heating body is further arranged in the atomizer shell. Both of the atomization piece and the heating body are in contact with the liquid guide structure, and both of the heating body and an atomization surface of the atomization piece communicate with an airflow passage, and a positive electrode and a negative electrode of the heating body are respectively connected with one end and the other end of a power supply. The heating body can not only quickly heat the tobacco tar to approach to its atomization temperature, but also can transfer a part of heat to the atomization piece, so that the atomization piece atomizes the tobacco tar quickly, shortening the atomization time.

A surface condensation process and device for efficiently removing coal combustion fly ash micro spheres are provided. The device is comprised of a patterned-plate type atomizer, a flow meter, an ultrasonic drive power source, an automatic temperature controller, a heat-tracing pipeline, a condensation sleeve, an electrically heated water storage tank, a water pump and an electrostatic precipitator.

A microfluidic cartridge and a microfluidic delivery device having a housing and a microfluidic cartridge releasably connectable with the housing are provided. The microfluidic cartridge includes a reservoir for containing a fluid composition, a first face, and a second face joined with the first face. The electrical circuit has a first end portion and a second end portion. The first end portion of the electrical circuit is disposed on the first face and the second end portion of the electrical circuit is disposed on the second face. The first end portion includes electrical contacts and one or more circuit minor openings that are configured to mate with minor guideposts on the housing of a microfluidic delivery device. The microfluidic cartridge may include one or more major openings that are configured to mate with major guideposts on the housing. The microfluidic cartridge includes a microfluidic die disposed on the second face.

An ultrasonic vibrator driving apparatus performs driving by applying an alternating voltage as a drive voltage to an ultrasonic vibrator that includes a piezoelectric element and has a unique resonance frequency. The drive voltage is generated with a variable frequency in a frequency range including the resonance frequency of the ultrasonic vibrator. The frequency of the drive voltage is repeatedly swept with a predetermined sweep width and a predetermined sweep period so as to include the resonance frequency, based on a reference frequency set according to the resonance frequency of the ultrasonic vibrator. The sweep period and the sweep width are restricted by being associated so as to fall within a predetermined allowed range on a two-dimensional map divided by the sweep period and the sweep width.

A diffuser assembly includes a case having multiple inlets defined through the bottom thereof. A reception space and a first room are respectively defined in the case. The first room communicates with the inlets and the reception space. A cup is received in the reception space of the case and includes a second room. An ultrasonic oscillator is connected to the cup and located corresponding to the second room. A fan is located in the first room so as to suck outside air into the first room, the slot and the second room via the inlets. The cup and the ultrasonic oscillator are able to be separated from the case for maintenance.

An electronic cigarette atomizer employing an ultrasonic atomizing unit (6), which comprises an outer tube (1), a liquid storage cup (2), a porous supporting sheet (3), a cigarette liquid permeation sheet (4), an ultrasonic atomizing unit (6), an atomizing seat (7), and a power connector (8). An inside of the atomizing seat (7) is provided with the ultrasonic atomizing unit (6), which includes a liquid guiding stick (61), an atomizing sheet (62), and an ultrasonic oscillating sheet (63); the ultrasonic oscillating sheet (63) can ultrasonically atomize the cigarette liquid conducted from the cigarette liquid permeation sheet (4) and the liquid guiding stick (61) to the atomizing sheet (62). The ultrasonic atomizing unit (6) is employed to atomize the cigarette liquid, which prevents the burning and deformation of the components of the electronic cigarette atomizer due to heating at high temperature.

A piezoelectric dispenser having a uniform dispensing quality of a viscous liquid by calibrating an operation stroke of a valve rod discharging a viscous liquid (vertical operation displacement of the valve rod) by setting the operation stroke of the valve rod to an initial value during use, and a method of calibrating the operation stroke of the piezoelectric dispenser. Accordingly, a uniform dispensing accuracy of viscous liquid may be maintained, and degradation of the dispensing quality of a viscous liquid due to abrasion of components may be reduced.

A cotton-free ultrasonic atomizer and electronic cigarette, comprising a tobacco tar cup, an air inlet passage, a tobacco tar smoke outlet passage and an atomization component; the atomization component includes a first atomization piece and a second atomization piece; an atomization cavity is formed between the first atomization piece and the second atomization piece, and an ejection end of the first atomization piece aligns to an atomization surface of the second atomization piece; the first atomization piece communicates with a tobacco tar outlet of the tobacco tar cup, the air inlet passage communicates with the atomization cavity, and the atomization cavity communicates with the tobacco tar smoke outlet passage.