A microfluidic device has a chamber; a fluidic access channel in fluidic connection with the chamber; a plurality of nozzle apertures in fluidic connection with the chamber; and an actuator, operatively coupled to the fluid containment chamber and configured to cause ejection of drops of fluid through the nozzle apertures in an operating condition of the microfluidic device. The chamber has an elongated shape, with a length and a maximum width, wherein an aspect ratio between the length and the maximum width of the chamber is at least 3:1. The nozzle apertures are configured to generate, in use, a plurality of drops having a total drop volume, wherein a ratio total drop volume to a chamber volume is at least 15%.

A microfluidic device has a chamber; a fluidic access channel in fluidic connection with the chamber; a plurality of nozzle apertures in fluidic connection with the chamber; and an actuator, operatively coupled to the fluid containment chamber and configured to cause ejection of drops of fluid through the nozzle apertures in an operating condition of the microfluidic device. The chamber has an elongated shape, with a length and a maximum width, wherein an aspect ratio between the length and the maximum width of the chamber is at least 3:1. The nozzle apertures are configured to generate, in use, a plurality of drops having a total drop volume, wherein a ratio total drop volume to a chamber volume is at least 15%.

Systems and methods for semiconductor fabrication are described. A spin coater comprises a spin chuck, a nozzle, a nozzle housing, a purge gas supply, and an organic solvent supply. The nozzle housing includes a lower housing including a solvent storage groove in which the organic solvent is stored, and an upper housing on the lower housing. The upper housing includes a nozzle insert hole on the solvent storage groove and receives the nozzle, and a gas supply hole connected to one side of the nozzle insert hole.

The invention relates to an atomizer unit of a minimal quantity lubricant system (2) for a cooling and/or lubricating function of a cutting-machining process. The atomizer unit (3) has a chamber assembly (8) with an injection chamber (9) and an atomizer chamber (10), wherein the injection chamber (9) is connected to the atomizer chamber (10) by a nozzle (11), and the atomizer unit (3) has at least one first feed channel (12) for feeding a first compressed air flow (13) into the injection chamber (9), at least one second feed channel (14) for feeding a second compressed air flow (15) into the atomizer chamber (10), and an injection valve (16) for injecting a coolant and/or lubricant (4) into the first compressed air flow (13) in the injection region (17) of the injection chamber (9). The atomizer unit (3) is designed such that the first compressed air flow (13) flows from the injection chamber (9) into the atomizer chamber (10) through the nozzle (11), is atomized in the atomizer chamber by the nozzle (11), is combined with the second compressed air flow (15) in the atomizer chamber (10) in order to form a transport flow (18) for transporting the injected coolant and/or lubricant (4), and can be conducted to the machining location (7). The atomizer unit (3) has a heater (20) which heats the coolant and/or lubricant (4), the first compressed air flow (13), the second compressed air flow (15), and/or the transport flow (18).

The invention relates to an atomizer unit of a minimal quantity lubricant system (2) for a cooling and/or lubricating function of a cutting-machining process. The atomizer unit (3) has a chamber assembly (8) with an injection chamber (9) and an atomizer chamber (10), wherein the injection chamber (9) is connected to the atomizer chamber (10) by a nozzle (11), and the atomizer unit (3) has at least one first feed channel (12) for feeding a first compressed air flow (13) into the injection chamber (9), at least one second feed channel (14) for feeding a second compressed air flow (15) into the atomizer chamber (10), and an injection valve (16) for injecting a coolant and/or lubricant (4) into the first compressed air flow (13) in the injection region (17) of the injection chamber (9). The atomizer unit (3) is designed such that the first compressed air flow (13) flows from the injection chamber (9) into the atomizer chamber (10) through the nozzle (11), is atomized in the atomizer chamber by the nozzle (11), is combined with the second compressed air flow (15) in the atomizer chamber (10) in order to form a transport flow (18) for transporting the injected coolant and/or lubricant (4), and can be conducted to the machining location (7). The atomizer unit (3) has a heater (20) which heats the coolant and/or lubricant (4), the first compressed air flow (13), the second compressed air flow (15), and/or the transport flow (18).

A smart shower head to regulate temperature of water being supplied is disclosed. The smart shower head comprises a showering section (101) for showering water, a shower head arm connecting the showering section (101) and supplying water to the showering section (101), and at least one compartmentalized nero-thermal coil 103 running through the length of the shower head arm (102) and the showering section (101).

Various examples are provided related to low pressure delivery, e.g., less than 250 psi at the point of application, of plural component system from unpressurized parts A and B material supplies. In one example, a system includes a polyurethane spray foam (“SPF”) raw material supply including parts A and B and a fluid handling system that can deliver the SPF raw material at low pressure to a metal spray gun in metered amounts through separate material fluid paths/conduits via a heated hose length and a whip hose. The fluid handling system can also deliver air at low pressure to the spray gun through separate air stream paths so that the air is communicated to the part A and B material conduits forward of the part A and B material input locations, where they are supplied separately to a mixing nozzle that is engaged at an end of the spray gun.

Various examples are provided related to low pressure delivery, e.g., less than 250 psi at the point of application, of plural component system from unpressurized parts A and B material supplies. In one example, a system includes a polyurethane spray foam (“SPF”) raw material supply including parts A and B and a fluid handling system that can deliver the SPF raw material at low pressure to a metal spray gun in metered amounts through separate material fluid paths/conduits via a heated hose length and a whip hose. The fluid handling system can also deliver air at low pressure to the spray gun through separate air stream paths so that the air is communicated to the part A and B material conduits forward of the part A and B material input locations, where they are supplied separately to a mixing nozzle that is engaged at an end of the spray gun.

A sanitary washing device includes a nozzle, a valve unit, a controller, and a casing. The nozzle is configured to discharge water toward an ano-genital region of a human body. The valve unit is provided on a pipe line between a water supply source and the nozzle. The valve unit includes an electromagnetic valve. The controller is configured to control operation of the nozzle and the valve unit. The casing stores the nozzle, the valve unit, and the controller. The valve unit is disposed further frontward than the controller.

A sanitary washing device includes a nozzle, a valve unit, a controller, and a casing. The nozzle is configured to discharge water toward an ano-genital region of a human body. The valve unit is provided on a pipe line between a water supply source and the nozzle. The valve unit includes an electromagnetic valve. The controller is configured to control operation of the nozzle and the valve unit. The casing stores the nozzle, the valve unit, and the controller. The valve unit is disposed further frontward than the controller.