Devices for generating and releasing vapor. In particular, described herein are portable devices for generating a low-temperature inhalable vapor having an elongated tubular body containing a vaporization chamber and a battery-powered heater, a removable mouthpiece covering the vaporization chamber, a display configured to indicate the temperature of the vaporization chamber; a microcontroller configured to regulate the temperature of the vaporization chamber, and a control to select from among a variety of temperature settings.

An ultrafine bubble generating apparatus and an ultrafine bubble generating method capable of efficiently generating an ultrafine bubble-containing liquid with high purity are provided. In order to this, a heating element provided in a liquid is caused to generate heat, and film boiling is made on an interface between the liquid and the heating element. A film boiling bubble is generated by the film boiling, and ultrafine bubbles are thus generated near the film boiling bubble.

An ultrafine bubble generating apparatus and an ultrafine bubble generating method capable of efficiently generating an ultrafine bubble-containing liquid with high purity are provided. In order to this, a heating element provided in a liquid is caused to generate heat, and film boiling is made on an interface between the liquid and the heating element. A film boiling bubble is generated by the film boiling, and ultrafine bubbles are thus generated near the film boiling bubble.

Systems and methods for extracting an analyte from a sample. The system includes a reaction vessel for receiving the sample and a reaction solution, a mixer for mixing the sample with the reaction solution, a filter and a drain for passing soluble components from the reaction mixture, including the dissolved analyte, from the reaction vessel. A purification vessel is located below the reaction vessel. A selective sorbent is disposed in the purification vessel for retaining contaminants from the soluble components from the reaction mixture and passing a purified analyte. An evaporation container is located below the purification vessel. A heater heats the evaporation chamber and evaporates the solvents from the purified analyte, which can then be quantitatively measured.

A fuel cell system comprising a fuel cell stack, an evaporator for evaporating a mixture of methanol and water to be forwarded through a catalytic reformer for producing portions of free hydrogen. The fuel cell stack being composed of a number of proton exchange membrane fuel cells each featuring electrodes in form of an anode and a cathode for delivering an electric current. The system provides an enhanced system for evaporating the liquid fuel using a pre-evaporator, which partly evaporates the fuel, followed by a nozzle, which atomizes the fuel into a fine mist, before being passed to the final evaporation zone. This configuration ensures minimal fuel accumulation in the system and fast load transition's.

A hybrid compound for insulating a substrate is formed by dispersing functionalized inorganic nanomaterials in a non-toxic reagent at a controlled pH using volatile bases to form an aqueous dispersion. The aqueous dispersion is then stirred to form the hybrid compound. The compound is then applied to a substrate and dried to from an insulating layer. The insulating layer protects the substrate from temperatures exceeding 1200 degrees Fahrenheit.

A system of generating an aerosol, by: (a) placing a liquid into a liquid chamber in an ultrasonic nebulization system having a cylindrical aerosol production chamber received within a cylindrical master chamber, and having top and bottom ultrasonic transducers; (b) passing air up through the aerosol production chamber; and (c) producing acoustic standing waves above the surface of the liquid with the top and bottom ultrasonic transducers, thereby generating an aerosol of the liquid by action of the standing waves.

Provided is a method of producing an ultrafine bubble-containing liquid containing ultrafine bubbles generated by causing film boiling in a liquid with a heat generation member, including: detaching a solid present at a liquid contact surface of the heat generation member in a form of a microscopic substance by using the film boiling; and generating ultrafine bubbles with the detached microscopic substance as a core.

Provided is a method of producing an ultrafine bubble-containing liquid containing ultrafine bubbles generated by causing film boiling in a liquid with a heat generation member, including: detaching a solid present at a liquid contact surface of the heat generation member in a form of a microscopic substance by using the film boiling; and generating ultrafine bubbles with the detached microscopic substance as a core.

A system for detecting a possibility of boiling over and preventing said boiling over, the system comprising a vessel (101) having a lid (102), the lid (102) being characterised in that it is configured: to receive information on an initial level of a vessel content and a current level of the vessel content; and based on a difference between the initial level and the current level as well as the time of a creation of said difference: to instruct, by means of a controller (203), a height actuator (207) of the lid (102) to extend said lid (102) vertically, in order to extend the height of said vessel (101); and to instruct, by means of a controller (203), an aperture actuator (206) to create an aperture in a top of the lid (102) in order to facilitate exchange of heat.