65 results about "Air exposure" patented technology

An apparatus for continuous on-line measurement of chemical composition of aerosol particles with a fast time resolution is provided. The apparatus includes an enhanced particle size magnifier for producing activated aerosol particles and an enhanced collection device which collects the activated aerosol particles into a liquid stream for quantitative analysis by analytical means. Methods for on-line measurement of chemical composition of aerosol particles are also provided, the method including exposing aerosol carrying sample air to hot saturated steam thereby forming activated aerosol particles; collecting the activated aerosol particles by a collection device for delivery as a jet stream onto an impaction surface; and flushing off the activated aerosol particles from the impaction surface into a liquid stream for delivery of the collected liquid stream to an analytical instrument for quantitative measurement.

A method is provided for void-free copper (Cu) filling of recessed features in a semiconductor device. The method includes providing a patterned substrate containing a recessed feature, depositing a barrier film on the patterned substrate, including in the recessed feature, depositing a Ru metal film on the barrier film, and depositing a discontinuous Cu seed layer on the Ru metal film, where the Cu seed layer partially covers the Ru metal film in the recessed feature. The method further includes exposing the substrate to an oxidation source gas that oxidizes the Cu seed layer and the portion of the Ru metal film not covered by the Cu seed layer, heat-treating the oxidized Cu seed layer and the oxidized Ru metal film under high vacuum conditions or in the presence of an inert gas to activate the oxidized Ru metal film for Cu plating, and filling the recessed feature with bulk Cu metal. The exposure to the oxidation source gas can be an air exposure commonly encountered in semiconductor device manufacturing prior to Cu plating.

The present invention relates to a volume-adjustable micro-injection device. The device includes a base structure having a syringe positioning structure and a grip, in which the syringe positioning structure can flexibly accommodate injection syringes with different volumes; a holding structure capable of flexibly adjusting an injection angle of syringe content for easier operation; a qualitative controller capable of accurately controlling injection volume; a pressure pushing structure to hold and push a plunger; an injection controller interlinked with the qualitative controller and the pressure pushing structure; and an eject structure facilitating simple operation and easy replacement of injection syringes. In contrast to conventional structures, the present invention provides advantages that control injection volume more accurately, address better injection angle control, allow for the syringe contents to be free from air exposure, require no special syringes, and allow for single-handed replacement of the injection syringe.

A rotatable greens drying device that includes a lid, a rotatable colander, a drive mechanism for rotating the colander, and a receiving ring fan which transfers rotational force from the drive mechanism to the rotatable colander. The fast moving, drier air circulated by the receiving ring fan naturally helps evaporate moisture from the surface of the greens and it helps expel water through container holes. This embodiment also allows air exposure of the leafy contents via the perforations within the spinning colander which further reduces surface moisture.

Provided is a method of depositing an amorphous silicon thin film by chemical vapor deposition (CVD) to prevent bubble defect occurring when an amorphous silicon thin film is deposited on a substrate contaminated by air exposure. The deposition method includes cleaning a surface of the contaminated substrate with a reaction gas activated by plasma and depositing an amorphous silicon thin film on the cleaned substrate. Here, a vacuum state is maintained from the substrate cleaning step to the thin film deposition step in order to prevent contamination of the surface of the cleaned substrate by re-exposure to air.

A method is disclosed comprising exposing air to a sensor, collecting data from the sensor regarding one or more constituents in the air, analyzing the data to determine an analysis result, and displaying the analysis result.

Contaminated water is disinfected by admixture of a highly reactive gas stream containing ions of oxygen and nitrogen, formed by exposure of air to short-wavelength ultraviolet radiation, and of chlorine, formed by electrolysis of a brine solution. Solids removal can be accomplished by electrophoresis in the same unit employed for electrolysis of brine to release chlorine, or in a separate unit.

A method of cutting, thinning, welding and chemically functionalizing multiwalled carbon nanotubes (CNTs) with carboxyl and allyl moieties, and altering the electrical properties of the CNT films by applying high current densities combined with air-exposure is developed and demonstrated. Such welded high-conductance CNT networks of functionalized CNTs could be useful for device and sensor applications, and may serve as high mechanical toughness mat fillers that are amenable to integration with nanocomposite matrices.

The invention discloses in-vitro tissue preserving fluid and a preparation method thereof. Each 1,000 milliliters of preserving fluid comprises the following components by weight: 5 to 200 grams of osmotic pressure regulator, 0.2 to 40 grams of a pH value buffer pair, 3 to 15 grams of potassium chloride, 1 to 5 grams of sodium chloride, 10 to 300 milligrams of antibiotic, 5 to 100 grams of glucose and the balance of deionized water. In the invention, a non-CO2 dependent buffer pair is used to reduce the dependence on CO2 in transport and an air exposure process and reduce the fluctuations of the pH value; a hypertonic and high-potassium environment is used to reduce the swelling of cells and tissues and improve the activities of the cells and tissues; and the antibiotic used is free from causing hypersensitivity reaction. The preparation method is simple and in-vitro tissue preserving fluid has a remarkable in-vitro tissue preserving effect. The in-vitro tissue preserving fluid is low in cost, has low transport requirements, and can be stored at room temperature and conveniently.

The invention discloses a real-time sensing and intelligent regulating system of the testee respiratory capacity and an implementation method of the real-time sensing and intelligent regulating system. The real-time sensing and intelligent regulating system comprises a vent valve, a flow sensor, a pulse sensor, a converter, a simulation operating system and a control chip, wherein the flow sensorwhich is used for monitoring the flow of a gas inlet is arranged in the gas inlet, the pulse sensor is used for monitoring the heart rate, the converter is used for converting the gas flow speed of the gas inlet and the heart rate monitoring result data, and is adapted through a computing storage to transmit the data to the simulation operating system; the simulation operating system is used for conducting fitting operations on the heart rate data and the respiratory capacity data according to a preset heart rate-respiratory capacity control model and assigning values of related relations to the control chip; the control chip is used for calculating the respiratory capacity according to the heart rate value which is transmitted in real time, comparing the respiratory capacity with actually-measured respiratory capacity, and sending a control instruction to a control valve. By means of the real-time sensing and intelligent regulating system of the testee respiratory capacity and the implementation method of the real-time sensing and intelligent regulating system, a precise estimation and automatic control system of a crowd behavior mode can be built, and a scientific basis is provided for accurately obtaining important parameters for monitoring air exposure behaviors of a tested crowd.

The invention discloses a preservation method for corneal limbus tissue. The method comprises a step of disinfecting fresh corneal limbus tissue and a step of air exposure preservation of the disinfected fresh corneal limbus tissue. The step of air exposure preservation is as follows: the fresh corneal limbus tissue is placed on a permeable covering film, preservation liquid or a cell culture medium capable of providing nutrients to the corneal limbus tissue is arranged below the covering film, epitheliums of cornea directly contact with air, the temperature of a culture environment in the step is 0 to 37 DEG C, and oxygen concentration is 0 to 20%. Compared to immersion preservation in the prior art, the preservation method provided in the invention has the following advantages: the structure of the preserved corneal limbus tissue is more integral; obvious apoptosis of the epitheliums of cornea does not occur; stem cells of corneal limbus can maintain high activity; and process flow is simple and reliable, is easy to implement, costs little and has other efficacy.

The invention discloses a prefabricated lifting fish-belly corrugated steel web internal-prestress combined box beam. A fish-belly-shaped beam section is adopted in the midspan position of the box beam. The bottom flange of the fish-belly-shaped beam section is a concrete flange. A corrugated steel web is used as the web of the fish-belly-shaped beam section in the midspan position. Concrete box beams which are equally high are used as support beam sections. Internal-prestress tendons which are equally long are tensioned in a concrete box beam web of a support beam section of the lower flange of the midspan fish-belly-shaped beam section. Based on the prefabricated lifting fish-belly corrugated steel web internal-prestress combined box beam, a corresponding construction method is established, and the construction is safe, convenient and fast through the construction method. By means of the prefabricated lifting fish-belly corrugated steel web internal-prestress combined box beam and the construction method thereof, the rigidity of a beam body is improved substantially, the air exposure of prestressed cables of the corrugated steel web combined beam is avoided, the durability and reliability of a combined beam structure are improved substantially, and an obstacle for widely popularizing the corrugated steel web combined beam is eliminated.

The invention discloses a making method of an operation vessel for preparation of pig ICSI zygotes. The making method comprises the steps that an operation liquid microdroplet of a set size, a PVP microdroplet for braking, an injection needle treatment microdroplet and a semen culture microdroplet are sequentially made on a phi 60-mm disposable cell culture dish; the semen culture microdroplet comprises a first semen culture microdroplet of an H-shaped structure, a semen screening bridge and a second semen culture microdroplet, and a large quantity of high-quality sperms are selected under the action of the semen screening bridge. The purpose of realizing a large amount of pig ICSI operation in a short time is achieved, time for selecting the sperms in the pig ICSI operation process is shortened, air exposure time of oocytes is shortened, and the survival rate of pig ICSI embryos is increased.

The invention discloses application of agaro-oligosaccharide in porphyra haitanensis immunopotentiator. The invention also discloses an application method of agaro-oligosaccharide in porphyra haitanensis immunopotentiator. Agaro-oligosaccharide is uniformly mixed with seawater to obtain agaro-oligosaccharide seawater solution with concentration of 50 to 250 Mug/ml stirring, or the agaro-oligosaccharide is uniformly sprinkled onto seawater crystals to obtain the agaro-oligosaccharide seawater solution with the final concentration of agaro- oligosaccharide in the seawater crystals being 50 to 250Mug/ml; and the prepared agaro-oligosaccharide seawater solution is used for sprinkling frond of porphyra haitanensis in an air exposure period which is cultured in a sea area or for soaking the porphyra haitanensis which is cultured in a laboratory, and the treatment time is 0.5 to 2h. Due to the adoption of the application method, weaknesses of the present technology for preventing the diseases and putridness of the porphyra haitanensis can be overcome, a growth status of the porphyra haitanensis can be improved through a method of immunology, and the resistance of the porphyra haitanensis to pathogenic microorganisms and severe environments can be enhanced.

The invention provides a carrier plate and film coating equipment. The carrier plate is provided with at least one hollow groove, and each hollow groove is internally provided with a supporting component so that a part to be machined can be placed in the hollow groove. When the carrier plate and the film coating equipment are applied, in the film coating process, silicon wafer turning is not needed, therefore, repeated vacuum breaking is not needed, silicon wafers are prevented from being affected by air exposure in the film coating process, the probability that the silicon wafers are pollutedis reduced, the problems that working procedures for preparing two-face solar cell pieces in the prior art are tedious, therefore, the cell piece preparation efficiency is low, and the electric performance is poor are solved, the film layer quality of the cell pieces can be improved, the cell piece preparation time can be shortened, and therefore working efficiency is improved.