4240results about How to "Reduce humidity" patented technology

A sealed battery enclosure to extend the life of the batteries contained therein is provided, the sealed battery enclosure significantly reducing contamination from water or other liquids and gases.

A system for microbially and/or chemically decontaminating a room such as a hotel room includes a vapor generator which supplies a decontaminant vapor, such as hydrogen peroxide vapor to the room. The room is then aerated to a level at which it is safe for normal occupants to enter. By using a two step aeration, with a second step at lower humidity than the first, the concentration of residual hydrogen peroxide is reduced rapidly to safe levels of 1 ppm or less, typically about 0.5 ppm, in under four hours. The room is rendered substantially free of contaminants, such as those responsible for Severe Acute Respiratory Syndrome (SARS), Norwalk virus, and unpleasant odors.

A roof top cooling unit has an evaporative cooling section that includes at least one evaporative module that pre-cools ventilation air and water; a condenser; a water reservoir and pump that captures and re-circulates water within the evaporative modules; a fan that exhausts air from the building and the evaporative modules and systems that refill and drain the water reservoir. The cooling unit also has a refrigerant section that includes a compressor, an expansion device, evaporator and condenser heat exchangers, and connecting refrigerant piping. Supply air components include a blower, an air filter, a cooling and/or heating coil to condition air for supply to the building, and optional dampers that, in designs that supply less than 100% outdoor air to the building, control the mixture of return and ventilation air.

A method of sterilizing an article by sequentially exposing the article to hydrogen peroxide and ozone is disclosed. The article is exposed under vacuum first to an evaporated aqueous solution of hydrogen peroxide and subsequently to an ozone containing gas. The exposure is carried out without reducing the water vapor content of the sterilization atmosphere, the water vapor content being derived from the aqueous solvent of the hydrogen peroxide solution and from the decomposition of the hydrogen peroxide into water and oxygen. The complete sterilization process is carried out while the chamber remains sealed and without removal of any component of the sterilization atmosphere. For this purpose, the chamber is initially evacuated to a first vacuum pressure sufficient to cause evaporation of the aqueous hydrogen peroxide at the temperature of the chamber atmosphere. The chamber is then sealed for the remainder of the sterilization process and during all sterilant injection cycles. Keeping the chamber sealed and maintaining the hydrogen peroxide and its decomposition products in the chamber for the subsequent ozone sterilization step results in a synergistic increase in the sterilization efficiency and allows for the use of much lower sterilant amounts and sterilization cycle times than would be expected from using hydrogen peroxide and ozone in combination.

An interface for positive pressure therapy includes a mask assembly, a headgear assembly and a connection port assembly. The mask assembly comprises a seal member that has an upper portion movably connected to an integrated lower portion, wherein the upper portion rolls during hinging movement of the upper portion relative to the lower portion. The headgear assembly allows connection to the mask assembly in a direction substantially normal to a direction of strap tension. The connection port assembly includes a swivel elbow with a valve member that controls flow through a port that opens toward the user.

A ventilation controller including at least one humidity sensor for controlling the humidity of a room. The ventilation controller incorporates a housing sized and shaped to replace, or be placed in, a standard electrical junction box. Circuitry in the controller receives data from the sensor(s). The controller automatically switches on power to an exhaust fan when either the humidity exceeds a manually set humidity level and/or a rapid increase in humidity is observed. When a plurality of sensors is employed, the humidity level from a first sensor is compared by logic circuitry to the humidity levels detected at a reference sensor(s). When the humidity at the first sensor exceeds the humidity at the reference sensor(s), the ventilation controller switches on power to the exhaust fan.

A refrigerated unit is well suited for storing fruits and vegetables. A household-sized refrigerated unit includes a storage space for retaining fruits and vegetables. The temperature within the storage space is controllable within a range of approximately 40-65 degrees Fahrenheit. The humidity level within the storage space is regulated to prevent unnecessary desiccation of the fruit and vegetables, and to prevent excessive condensation. The unit is provided with a mechanism for regulating the level of ethylene gas within the storage space to either retard or accelerate ripening, as desired.

An HVAC system includes a desiccant wheel, wherein the wheel's speed varies with airflow, the wheel is energized for at least a set period at startup, and/or a heat recovery system (e.g., an air-to-air heat exchanger) upstream of the wheel enhances the system's ability to dehumidify air.

An interface for positive pressure therapy includes a mask assembly. The mask assembly comprises a mask seal that is adapted to underlie the nose. The mask seal extends up the lateral sides of the nose. The mask seal has a primary seal below the nose and a secondary seal alongside the nose. The mask seal comprises a rolling hinge that permits one portion of the mask seal to deform relative to another portion of the mask seal. In one configuration, the portion of the mask seal that underlies the nose is configured to deform relative to a lower portion of the mask seal.

The invention discloses a temperature and humidity control method of an air conditioner, which comprises: when the air conditioner is cooling, heating or dehumidifying, obtaining a target moisture content based on the indoor set temperature and indoor set humidity; When the preset comfortable temperature is reached, the current moisture content is obtained based on the current indoor ambient temperature and the current indoor air humidity; the difference between the current moisture content and the target moisture content is calculated; when the difference is less than or equal to the first preset value , the air conditioner is controlled to perform humidification processing, and when the difference is greater than the second preset value, and the air conditioner is cooled or dehumidified according to the automatic wind speed, the air conditioner is controlled to perform dehumidification processing. The invention also discloses a temperature and humidity control device of the air conditioner. The invention realizes the humidification process when the humidity of the indoor environment is too low during the cooling, heating or dehumidification process of the air conditioner, or performs the dehumidification process when the humidity of the indoor environment is too high, thereby improving the efficiency of the user when using the air conditioner. of comfort.

A system for the detection of nitric oxide in a gas sample includes a converter for oxidation of nitric oxide to nitrogen dioxide, a nitrogen dioxide sensor including nanostructures and a filtering device to remove at least carbon dioxide from the gas sample positioned upstream of the converter. The nitrogen dioxide sensor can, for example, include a recognition layer on the nanostructures adapted to enhance sensitivity to nitrogen dioxide. A method for detecting nitric oxide in exhaled breath includes detecting nitric oxide in the exhaled breath using a nitric oxide sensor including nanostructures. Another method for detecting nitric oxide in exhaled breath includes filtering the breath to remove at least carbon dioxide from the breath, oxidizing nitric oxide in the exhaled breath to nitrogen dioxide and detecting the nitrogen dioxide using a nitrogen dioxide sensor including nanostructures.

The invention is an apparatus and methods for optimizing the performance and protecting one or more aerosol generating transducers from deterioration while operating in a chemically reactive aqueous solution by utilizing one or more protective barrier techniques to eliminate chemical interaction between the aqueous solution and the transducers, among other features of the generator including these transducers. The method of the present invention produces an aerosol producing transducer with the transducer housing and assembly to be constructed in such a way as to assure its efficient and effective long-term and problem free operation in an aqueous solution that is chemically reactive.

A tamper alert band is provided that includes a strap with conductive and non-conductive elements or layers. The tamper alert band includes an electronic or RFID device that is configured to communicate with RFID readers and/or exciters. The strap may be a single unitary body that has a conductive layer and a non-conductive layer

A tungsten oxide/titanium dioxide photocatalyst coating oxidizes contaminants in the air that adsorb onto the coating into water, carbon dioxide, and other substances. The tungsten oxide forms a monolayer on the titanium dioxide. When photons of the ultraviolet light are absorbed by the tungsten oxide/titanium dioxide photocatalyst coating, an electron is promoted from the valence band to the conduction band, producing a hole in the valence band. The holes in the valence band react with water applied on the tungsten oxide/titanium dioxide photocatalyst coating, forming reactive hydroxyl radicals. When a contaminant in the air is adsorbed onto the tungsten oxide/titanium dioxide photocatalyst, the hydroxyl radical attacks the contaminant, abstracting a hydrogen atom from the contaminant. The hydroxyl radical oxidizes the contaminant, producing water, carbon dioxide, and other substances. The tungsten oxide/titanium dioxide photocatalytic coating has low sensitivity to humidity variations.

The invention provides an air conditioning device which can maintain indoor air environment and save energy with good effect even when the air-exchange amount is small. The air conditioning device is used for discharging carbon dioxide from the indoor. The air conditioning device is set in that the return air from a room (6) is cooled through an evaporator (10) of a heat pump cycle system; the cooled air passes through the adsorption zone (3) of a honeycomb type rotor (1) having the function of carbon dioxide absorption; outer air (OA) whose temperature increases by passing through a condenser (14) of the heat pump cycle system passes through a desorption zone (4) of the honeycomb type rotor (1). In this case, carbon dioxide contained in the air in the room (6) can be adsorbed to the honeycomb type rotor (1) and be discharged to the outside, thereby the internal environment of the room (6) can be maintained even the air exchange is in small amount.

The invention discloses a measuring device and method for a trap parameter of solid dielectric. The solid dielectric material is charged by using a three-electrode corona discharge system; a material sample to be tested is placed below a single-needle electrode and a metal mesh electrode; the sample is adhered to a metal disc electrode through conductive silicone grease and is charged by the three-electrode system; after charging is ended, an external voltage is removed, and short circuit discharge is performed to remove surface free loads; surface potential of the measured sample is attenuated; and the trap energy level and the trap density parameter of the material can be calculated through a signal conditioning circuit and a data acquisition system. The measuring device comprises a constant temperature box, the three-electrode coronate charging system, a surface potential measuring system, a sample preheating system, a rotary electrode and a temperature and humidity control system. The invention provides an effective analysis means for research in representation of an aging condition of a polymer insulating material and an aging rule of polymer by the trap parameter and research in aspects such as a solid dielectric surface electrification phenomenon and surface flashover performance influence.

The invention relates to a high-precision and constant temperature and humidity cabinet, which is used for storing special articles. The temperature and humidity in the cabinet can be controlled within designated scope automatically and constantly. In the invention, a cooling/heating semiconductor high-temperature stacking is used as a temperature control and dehumidification executive component, an ultrasonic wave humidifier is used as a humidification executive component, and an electric temperature/humidity sensor, a series of fans, keys, a display, a controller and the like are mounted, thereby realizing constant temperature and humidity. When temperature inside the cabinet is higher than preset target temperature, the temperature control semiconductor high-temperature stacking generates forward current to reduce the temperature inside the cabinet; when temperature inside the cabinet is lower than the preset target temperature, the temperature control semiconductor high-temperature stacking generates reverse current to raise the temperature inside the cabinet to the preset target temperature; when humidity inside the cabinet is higher than preset target humidity, the dehumidification semiconductor high-temperature stacking generates forward current to reduce the temperature of a condensation block in the cabinet to be below the dew point, so as to enable moisture in the cabinet to condensate and flow into a water tank to realize dehumidification effect; and when humidity inside the cabinet is lower than preset target humidity, an ultrasonic wave humidifier sprays water mist to raise the humidity in the cabinet to the preset target humidity.

The temperature control system includes heat elimination air flue including air inlet and air outlet, and reflow dual flue including first air inlet and first air outlet. The first air inlet and first air outlet of reflow dual flue are connected to the air outlet and air inlet of the heat elimination air flue. Heat elimination fan system is setup in the heat elimination air flue. Circulating fan system is setup in the reflow dual flue. Under environment in normal temperature, the invention does not need of using additional heating unit. Using heat consumption of equipment self, the invention carries out heating to reduce relative humidity in cabinet, inhibit corrosion, save energy, and guarantee reliable heat elimination for equipment.

Disclosed are non stoichiometric Copper Alkaline Earth Silicate phosphors activated by divalent europium for using them as high temperature stable luminescent materials for ultraviolet or daylight excitation. The phosphors are represented as the formula (Ba_uSr_vCa_wCu_x)_3-y(Zn,Mg,Mn)_zSi_1+bO_5+2b:Eu_a. The nonstoichiometric tetragonal silicate is prepared in a high temperature solid state reaction with a surplus of silica in the starting mixture. Furthermore, luminescent tetragonal Copper Alkaline Earth Silicates are provided for LED applications, which have a high color temperature range from about 2,000K to 8,000K or 10,000K showing a CRI with Ra=80˜95, when mixed with other luminescent materials.

A microscope stage capable of always heating the entire culture vessel even when the culture vessel is moved in two-dimensional directions, and allowing an object lens and a condenser even in a high-power microscope to approach an object of observation such as a cell until they come into focus. A heating unit (58) faces a well plate (37) on a drive base (49) even when the drive base (49) is driven to any position in two-dimensional directions. Therefore, all the cells A in the small compartments (45) of the well plate (37) are always heated. Since the microscope stage (25) is constituted such that a lower-side base (71) houses an upper-side base (73) and a fixed base (47) in recessed portions, its thickness is considerably small. Accordingly, an object lens (5) and a condenser (3) can approach close to the cells A. Therefore, it is possible for high-power object lens (5) and condenser (3) to focus on the cells A.