281 results about "Volatile substance" patented technology

The invention discloses a switchable graded sampling pre-construction control method for dust and a detection device. The method comprises the following steps: synchronously acquiring data through multiple types of sensors, constructing a condensation risk prediction model, calculating a condensation risk index RI and dividing risk grades; based on the risk level, dynamically adjusting the target power of the heating wire, the blowback period of the air pump and the airflow speed, and cooperatively triggering an electrode cleaning and trapping filter screen switching program; after cleaning is completed, follow-up control parameters are dynamically adjusted; and closed-loop control is formed. According to the method, the temperature and humidity sensor is arranged in the external environment to obtain background parameters, the airflow velocity sensor is used for sensing the working condition change of the air pump, and a dynamic condensation risk prediction model is established, so that excessive heating is avoided fundamentally, and evaporation loss of semi-volatile substances is prevented; therefore, the accuracy of a dust concentration detection result is remarkably improved in an extreme humidity environment.

The invention relates to the technical field of agricultural microorganisms, in particular to trichoderma asperellum and application thereof.The trichoderma asperellum comprises at least one of the following trichoderma asperellum TA727, the trichoderma asperellum TA727 is preserved in the Guangdong Microbial Culture Collection Center, and the preservation number is GDMCC NO. 63859. The trichoderma asperellum has the advantages that the trichoderma asperellum can be used for preparing the trichoderma asperellum; the trichoderma asperellum is high in sporulation quantity and strong in acid resistance, and has a relatively good pathogenic bacterium inhibition effect under an acidic condition, and volatile substances of the trichoderma asperellum also have an antibacterial effect. The trichoderma asperellum can effectively inhibit pathogenic bacteria in an acid soil environment and soil-borne diseases caused by the pathogenic bacteria, meanwhile, industrial production can be facilitated, and the trichoderma asperellum has wide application prospects.

The application relates to a front exhaust battery cracking device, which comprises a cracking kiln containing a casing and a cracking furnace body, a feeding channel is arranged on one side of the casing, a material collecting container is arranged on the other side of the casing, the material collecting container is provided with a discharging port, an explosion-proof assembly contains a pressure relief pipe connected to the upper end of the material collecting container, the exhaust end of the pressure relief pipe is connected to a water body containing cavity, a front exhaust assembly contains an exhaust pipe connected to the exhaust port of the feeding channel, the exhaust pipe is connected to the air inlet end of a physical filtering device, the air outlet end of the physical filtering device is connected to the air inlet end of a fireproof container, the air outlet end of the fireproof container is connected to a cracking gas combustion furnace, a closing plate is arranged outside the air inlet end of the fireproof container through an elastic element, and the side of the closing plate not connected to the elastic element is fixed by a pull assembly made of combustible material. The application can effectively realize front discharge of cracking tail gas under the premise of ensuring the safety of tail gas treatment, so that the doping amount of volatile substances in the post-cracking material is reduced.

The diffusion device comprises a container (1) having a recess for containing a liquid containing a volatile substance, and a cover member (2) attached to the container (1). The cover member (2) comprises a membrane (21), a barrier layer (22) which is removed before the first use of the device, an intermediate layer (24) positioned between the membrane (21) and the barrier layer (22), and a peelable tab (25) that defines a mounting area (3). The mounting area (3) is the area between the peelable tab (25) and the rest of the cover member (2) where the cover member (2) is attached to the container (1). The membrane (21) has a gap (26) or a thin section in the mounting area (3), and the membrane (21) terminates in the mounting area (3). This makes it possible to remove the barrier layer before the first use, thereby strengthening the opening and maintaining the membrane welded to the container.

According to the method for detecting the content of the volatile substances in the aquilaria sinensis, provided by the invention, through pretreatment steps such as extraction of an extraction solvent, heating reflux and filtration, a sample is selectively and preliminarily purified, and the matrix effect of subsequent detection and analysis is effectively reduced; an inert capillary column is used for separation, high-purity helium is used as carrier gas, and an optimized heating program and an MRM detection mode are combined; through the synergistic effect of the two components, comprehensive, accurate and high-repeatability qualitative and quantitative analysis of various volatile substances in the aquilaria sinensis, especially nookatone which is easy to leak in a conventional method, is realized, and a reliable technical means is provided for accurate identification and quality evaluation of the aquilaria sinensis.

The invention relates to the technical field of component content analysis, in particular to a method and system for detecting the content of volatile organic compounds in a curing agent, and the method comprises the following steps: determining gas transmission delay according to the no-load operation process of a target tunnel type oven; determining a comprehensive physical reference coefficient according to the physical volatilization operation process of the target tunnel type drying oven without chemical reaction, the gas transmission delay and an Antow empirical formula; determining a current molar evaporation enthalpy and a current pre-exponential factor; determining a physical volatilization benchmark reference value by combining the alignment temperature data at the current moment; and detecting the content of the organic volatile matters in the curing agent according to the physical volatilization benchmark reference value and the actually measured gas concentration data of each curing reaction temperature zone at the current moment. By analyzing the no-load operation process, the physical volatilization operation process without chemical reaction and the current curing reaction operation process of the tunnel type drying oven, the content of the volatile organic compounds in the curing agent is detected, and the detection accuracy is improved.

The invention provides a method for detecting redundancies in an air bearing, which solves the technical problem that the existing dynamic pressure air bearing motor is lack of detection of the redundancies after the air bearing and the motor are assembled, firstly, particles and volatile substances on the surface of the air bearing are removed, and the detection accuracy of the internal redundancies can be improved. A power meter is adopted to measure the power of the motor, the time length is combined, the theoretical motor synchronization time and the minimum starting voltage are determined, the theoretical motor synchronization time and the minimum starting voltage are compared with the actually measured synchronization time and starting voltage, whether redundancy exists or not is determined, and the method is suitable for detecting the redundancy of various types of air bearings; according to the detection method, multiple positions of the bearing can be detected by rotating the output shaft of the motor, and the detection accuracy can be improved; and the method has the advantages of simple operation and wide application range.

The application provides a method for optimizing the slaughter weight of Jinfen white pigs to produce high-quality flavor pork. Through systematic research on the influence of different slaughter weights on the pork quality and flavor of Jinfen white pigs, it is first determined that when the slaughter weight is 135.08±1.10 kg, the pork has the optimal comprehensive quality performance, which is specifically embodied in that the intramuscular fat content reaches (3.82±0.05)%, the shear force is (35.75±1.68) N, and the meat quality is excellent. At the same time, the pork of the weight group has the most total volatile substances, and the types of various volatile substances are relatively rich, and exhibits the best flavor characteristics. The application not only provides clear process parameters for the production of high-quality flavor pork of Jinfen white pigs, but also provides a reliable technical basis for the precise regulation of meat quality based on the slaughter weight.

Provided are processes for development of photopatterned metal or metal oxide-based thin film photoresists post-EUV exposure for removal of non-volatile species and deterring etch stop. Repeated cycles of alternating treatment with an etchant and an oxidizing agent; or treatment with an etchant followed by treatment with a wash agent are effective techniques for removal of the undesired unexposed portion of a photoresist.

Thermosensitive material for an overheat detection element, detection element, associated electrical equipment and electrical cabinet. This thermosensitive material is a hot injectable and electrically insulating material, the thermosensitive material including a polymer matrix, made of a thermoplastic polymer material or thermoplastic elastomer, a plasticizer, having a molar mass (M), and a charge in the form of particles, in particular carbon black.The molar mass (M) of the plasticizer is chosen based on a predetermined first temperature threshold (Ti), so that the heat-sensitive material is configured to release volatile species from the heated plasticizer and charge particles carried by the plasticizer when the material is subjected to a temperature above the first temperature threshold (Ti). These volatile species from the plasticizer and charge particles are detectable by a detection device. See Figure 3 for the abbreviation.

The present application relates to a method for inhaling water steam, usually mixed with volatile substances, by capturing the steam in immediate proximity of the hot free surface of the water-based liquid by means of a portable, handheld, mouth-inhaler. The inhalation occurring by means of an air tube having its lower opening in proximity of said hot liquid surface, at adjustable distance and inclination, for an optimal inhalation experience. According to the invention, pure water steam or water steam mixed with volatile substances can be inhaled, the latter originating from substances immersed in the water-based liquid. During inhalation no energy supply (batteries, network) is needed, thanks to high thermal insulation quality of the body of the inhaler. Fast heating of the water or water-based liquid occurs in-between inhalation periods, by placing the inhaler on its holder, the latter providing for energy supply. The inhalation is performed for health, well-being or pleasure purposes.

The invention discloses a method for analyzing aroma components of cooking wine based on molecular docking and an odor activity value and application. According to the method, cooking wine aroma is taken as a research object, volatile substances are detected by gas chromatography-mass spectrometry (GC-MS) and headspace gas chromatography-ion mobility spectrometry (HS-GC-IMS), and by combining with odor activity value (OAV) analysis, the combining capacity of aroma molecules and olfactory receptors is simulated through molecular docking, characteristic aroma compounds are screened, and the aroma of the cooking wine is detected. And finally, constructing a recombinant aroma model according to the characteristic aroma compounds, carrying out sensory evaluation, and evaluating the aroma similarity of the recombinant aroma model and the natural cooking wine sample to determine the characteristic aroma components of the cooking wine. The method can be used for analyzing aroma substances of cooking wine and performing standardized flavor management.

The invention relates to the technical field of traditional Chinese medicine decocting equipment, in particular to decocting, filling and packaging whole-course airtight vacuum centrifugal decocting equipment which comprises decocting pans, a bagging assembly, a first compensation part and a second compensation part, and the two decocting pans convey liquid medicine obtained after medicine of different attributes is decocted into a bagging tank of the bagging assembly through a liquid guide pipe; volatile substances can be generated in the medicine decocting process of the decocting pot, the first compensation part can convey the volatile substances into the bagging tank, and the first compensation part can further extrude the volatile substances entering the bagging tank out of the bagging tank in the subpackaging and filling process. In the process that the medicine is fried in the frying pan, oxygen in air can oxidize the medicine, so that the medicine effect of the medicine is affected, the second compensation piece reduces the oxygen content in the frying pan and the bagging tank, it is ensured that the probability that the medicine is oxidized after subpackaging and filling can be reduced, and the medicine effect is improved. Therefore, the problems of high loss of volatile components and low dissolution rate of insoluble components in the medicine decocting process of existing medicine decocting equipment are solved.

The container for diffusing volatile substances comprises a transparent container body (1) for a material impregnated with volatile substances and provided with an opening (2); a permeable membrane (3) that closes the opening (2) of the container body (1); and a barrier layer (4) removably connected to the permeable membrane (3); wherein the permeable membrane (3) is sealed with the container body (1) in a sealing zone (6), the permeable membrane (3) being transparent in the sealing zone (6).It permits to provide a container for diffusing volatile substances with an improved or high-performance membrane that allows at first sight to see that the sealing of the container is correct.

The present invention provides a film formation composition for forming a film formed of fibers directly on the skin by electrostatic spraying, the formed film being excellent in sebum resistance. The present invention relates to a film formation composition containing components (a), (b), (c), and (d) below. (a) a polymer having a film formation ability; (b) one or more volatile substances selected from the group consisting of alcohols and ketones; (c) a plasticizer; (d) a non-volatile oil other than the component (c) having a viscosity of 50 mP·s or more and 3000 mP·s or less at 35°C in an amount of 3% by mass or more and 15% by mass or less.

The application discloses a cherry freshness detection device based on volatile substance concentration proportion time sequence model, which comprises a handheld detection instrument main body and a sampling bottle. The detection instrument main body comprises a micro air pump, a micro air chamber and a micro processing unit. The micro processing unit is integrated with a data acquisition module, an algorithm module and a calculation detection module. The algorithm module is integrated with concentration proportion time sequence models of various volatile substances. The calculation detection module compares the concentration data of various volatile substances and the concentration proportion time sequence models to determine the picking time and freshness of cherries. Compared with the traditional method, the application has the advantages of rapid determination, and the single test time is 4 min. Compared with artificial and single alcohol detection instrument, the application uses multiple characteristic volatile substance contents as test objects, and has higher precision and repeatability.

The invention discloses a strain of bradyrhizobium guangzhouense APHBXY-23-1 with functions of efficiently promoting growth and strongly inhibiting aspergillus flavus and application of the strain of bradyrhizobium guangzhouense APHBXY-23-1. The preservation number of the strain of bradyrhizobium guangzhouense APHBXY-23-1 is CCTCC (China Center for Type Culture Collection) M 20253048. The invention not only retains the core functions of the strain as rhizobium for efficient symbiotic nitrogen fixation and crop growth promotion, but also reveals that the strain can significantly inhibit the growth of aspergillus flavus by releasing a volatile substance dimethylbutyric acid for the first time. The discovery breaks through the technical limitation that the traditional rhizobium only has a growth promoting function and lacks a biocontrol effect, the two agricultural microorganism core functions of nitrogen fixation and growth promotion and biocontrol bacteriostasis are endogenously integrated into the same microorganism carrier for the first time, and a novel rhizobium resource with double functions is successfully constructed; a new species of growth-promoting rhizobium with a biocontrol function is created, and the growth-promoting rhizobium has important innovative value in theory and application levels.

This invention discloses a fermented wine made from Gastrodia elata, its preparation method, and its applications, belonging to the field of fermented wine preparation technology. This invention discovered that *Saccharomyces cerevisiae* SY exhibits faster fermentation speed, the lowest proportion of bitter amino acids, a higher proportion of umami amino acids, and a higher sensory score when preparing fermented wine from Gastrodia elata. It also retains the characteristic volatile substances of Gastrodia elata in moderate amounts, has minimal impact on the aroma of the wine, and produces a richer aroma profile, making it more suitable for producing fermented wine from Gastrodia elata. Furthermore, the fermentation process was optimized through single-factor experiments and response surface methodology. Finally, based on actual conditions, the optimal fermentation process was determined to be a fermentation temperature of 26.3℃, an initial sugar content of 21.5 °Bx, and a yeast addition of 0.14%. Under these fermentation conditions, the resulting fermented wine from Gastrodia elata has a bright yellow color, a strong fruity aroma, and a well-integrated flavor between the Gastrodia elata and the wine aroma, resulting in a distinct flavor profile. This invention provides technical support for developing fermented wines from Gastrodia elata with unique flavor and stable quality, promoting the application of Gastrodia elata in the field of deep processing.

The invention discloses a volatile substance packaging container which comprises an outer pipe body, an inner pipe body and an inner pipe body. The inner pipe body is rotatably assembled in the outer pipe body, and a second release opening corresponding to the first release opening is formed in the side wall of the inner pipe body; at least part of the storage element is arranged in the inner pipe body, the part of the storage element is provided with a third release port, and when the first release port, the second release port and the third release port are communicated, the packaging container forms a channel for dissipating the volatile substances outwards; and a linkage mechanism is arranged between the driving piece and the inner pipe body. When the packaging tube needs to be opened for use, the driving piece is operated to move, the inner tube body can correspondingly rotate due to the action of the linkage mechanism, the first release opening and the second release opening are aligned, volatile substances can be volatilized outwards from the channel, the operation is simple and convenient, and compared with a packaging tube in the forms of rotation, uncovering and the like, the interestingness is increased; and the experience feeling of consumers is improved.

This invention discloses a method for preparing difluorooxalate borate. The method includes the following steps: S100, placing the reactants in a mechanochemical reaction apparatus for a staged solid-phase transformation reaction to obtain crude difluorooxalate borate. The reactants are tetrafluoroborate and oxalic acid or oxalate. During the reaction, volatile substances generated are removed and recovered. S200, the crude difluorooxalate borate obtained in step S100 is subjected to crystallization treatment to obtain the difluorooxalate borate product. The method for preparing difluorooxalate borate provided by this invention uses tetrafluoroborate and oxalic acid or oxalate as reactants in a mechanochemical reaction apparatus. It does not require a large amount of reaction solvent, obtains the target product in one step without generating a large amount of waste liquid, and has a simple post-processing procedure. Byproducts are continuously removed during the reaction, promoting the forward reaction. This is a green and efficient method for preparing difluorooxalate borate.

The application belongs to the technical field of biology, and discloses application of CmPHL1 transcription factor in inhibition of citrus leaf oil cell formation and regulation of volatile substances. In view of the problem of insufficient research on existing citrus oil cell formation and essential oil synthesis, a pGBI-CmPHL1 overexpression vector is constructed, and positive strains are obtained by means of Agrobacterium-mediated transformation of citrus. Experiments prove that overexpression of CmPHL1 can significantly reduce the number of oil cells and the content of monoterpenes, sesquiterpenes and other volatile substances. CmPHL1 targets the molecular regulation network of oil cell development, accurately regulates and is heritable, provides a new gene target for citrus quality improvement and breeding, is in line with the direction of green agriculture, and has important economic and ecological benefits.

The application discloses a preparation method and system of sodium difluorophosphate. The preparation method of sodium difluorophosphate comprises the following steps: S100, in a water-free or low-water environment, a solid-phase reaction is generated between diphosphorus pentoxide and ammonium fluoride to obtain an ammonium difluorophosphate intermediate, and volatile substances generated in the reaction process are removed and recovered; S200, in a water-free organic solvent, the ammonium difluorophosphate intermediate obtained in the step S100 is reacted with a sodium salt to obtain sodium difluorophosphate. The preparation method of sodium difluorophosphate provided by the application uses diphosphorus pentoxide and ammonium fluoride as reaction raw materials to obtain an ammonium difluorophosphate intermediate, and then reacts to obtain sodium difluorophosphate. The obtained sodium difluorophosphate has high purity and few impurities. The preparation method of sodium difluorophosphate has the advantages of cheap and easily obtained raw materials, stable chemical properties, few by-products generated in the reaction, and easy recovery, and is a green and safe preparation method of sodium difluorophosphate.

The invention relates to the technical field of Korla bergamot pear detection, and discloses a Korla bergamot pear organic acid content nondestructive detection method, which comprises: collecting a bergamot pear sample with consistent maturity, no damage and complete surface layer; the surface is wiped with absolute ethyl alcohol and then naturally air-dried, only the surface layer is subjected to vacuum freeze drying and smashing, and the integrity of a main body is reserved; according to the method, ICP-MS, HT-IRMS and GC-MS / EMIS are combined with an HS-HPME extraction technology, multi-dimensional detection of mineral elements, isotope contents and ratios and volatile components is carried out, and an isotope and element characteristic database and a regional characteristic volatile substance fingerprint spectrum are constructed; analyzing and screening characteristic indexes through orthogonal partial least squares, and eliminating interference factors; and establishing a linear discrimination model, forming an organic acid content detection and origin identification integrated technical system, and optimizing detection parameters. According to the method, rapid and nondestructive testing and source area traceability are realized, and reliable technical support is provided for quality evaluation of the Korla bergamot pears.

The utility model relates to the technical field of radioactive waste treatment, and provides a semi-volatile substance trapping device. The semi-volatile substance trapping device comprises: a heater having a first heating section and a second heating section; the heating pipe penetrates through the heater, the heating pipe is provided with a volatilization area and a trapping area, the volatilization area is arranged corresponding to the first heating section, and the trapping area is arranged corresponding to the second heating section; the first heating section is used for heating a solid-state semi-volatile substance in the volatilization area, so that the solid-state semi-volatile substance is converted into a gaseous-state semi-volatile substance; the trapping material support is located in the trapping area, the trapping material support is used for containing trapping materials, and the gaseous semi-volatile substances can flow to the trapping area from the volatilization area and are trapped by the trapping materials. According to the semi-volatile substance trapping device, the trapping effect of the semi-volatile substances is improved, and deep exploration and research of volatilization and trapping characteristics of various semi-volatile substances in nuclear waste are promoted.

The invention relates to the technical field of biological information processing and automatic sorting, and discloses a chick gender automatic identification method and system based on multi-modal fusion, and the method comprises the steps: collecting original three-dimensional point cloud data through a three-dimensional form sensing module, and calculating the key region coordinates of chicks; based on the coordinates, controlling the addressable micro sampling array to execute active sampling adaptation, and obtaining measurement response time sequence data of the target volatile matter; acquiring background response time sequence data by utilizing a background channel sensor array; and performing differential processing on the two to generate a differential biochemical response time sequence vector. And then, respectively extracting morphological feature vectors and biochemical fingerprint feature vectors, inputting the morphological feature vectors and the biochemical fingerprint feature vectors into respective independent classifiers to obtain prediction categories and confidence coefficients, finally, judging a bimodal prediction result through preset cross validation gating fusion logic, outputting a final decision, and controlling a sorting execution module to complete physical sorting. And the accuracy of biochemical sampling is improved through active sampling adaptation.

Disclosed is a carbon fiber precursor treatment agent that contains a carbon nanostructure and a surfactant. The carbon nanostructure is present in the nonvolatile matter of the carbon fiber precursor treatment agent at a content of 10 ppm or more and less than 50,000 ppm.

The invention discloses a biological material with an efficient peculiar smell removal function, which is prepared from the following raw material components in parts by mass: 8 to 12 parts of manganese precursor, 0.8 to 1.2 parts of soluble metal salt, 4000 to 5000 parts of dispersing agent and 90 to 100 parts of conditioning agent. The composite nano material which takes small-particle-size thorn convex manganese dioxide as a core and loads metal ions is prepared by simple processes such as mixing, reaction, centrifugation and the like. The material can efficiently remove bad breath through a dual synergistic mechanism; small-particle-size manganese dioxide captures odor-producing bacteria through physical adsorption; meanwhile, released metal ions and hydrogen sulfide are subjected to chemical reaction to generate substances difficult to volatilize. Through the synergistic effect of physical interception and chemical conversion, the dual effects of blocking generation of peculiar smell from the source and immediately eliminating the peculiar smell are achieved. The product disclosed by the invention has biocompatibility and a long-acting peculiar smell removal function, can be widely applied to oral care products such as toothpaste and mouth wash, and provides an innovative solution for solving the problem of bad breath.

A multi-layer article includes a non-active state and an active state. The multi-layer article includes at least one layer that includes a volatile material therein. The multi-layer article is folded along an axis so that an upper portion of the multi-layer article is disposed on a lower portion of the multi-layer article.

The invention provides a method for reducing the content of residual impurities in solution polymerized styrene-butadiene rubber, which comprises the following steps: adding halide into a glue solution after polymerization is terminated, and stirring for reaction to generate volatile substances and halide salt; removing and recovering the volatile substances by using a steam flash evaporation technology; and recovering the halide salt by adopting a solid-liquid separation and evaporation technology, and carrying out drying treatment to obtain the rubber particles. According to the method, the residue of lithium byproducts is remarkably reduced, lithium resources can be effectively recycled, the wastewater treatment cost is reduced, the overall production efficiency is improved, and green, economical and efficient production of the solvent styrene butadiene rubber is realized.