468 results about "Volatile substance" patented technology

The present application discloses a continuous dynamic and efficient devolatilization method for a polymer / volatile system based on high mass transfer interfaces, including the following steps: providing a dynamic single-screw devolatilizer, feeding a polymer solution to the devolatilizer, wherein the polymer solution includes polymer and volatile substances with small molecule weight, and the volatile substances include organic solvents, residual monomers, water or reaction by-products; conveying and compressing polymer materials by the screw downstream a devolatilization section, and extruding the polymer materials out of the dynamic single-screw devolatilizer directly; or providing a side-feeding extruder downstream of the devolatilization section and feeding plastic additives into a devolatilized polymer melt, and then melt blending the plastic additives with the devolatilized polymer melt at an end of the dynamic single-screw devolatilizer before exiting the dynamic single-screw devolatilizer.

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.

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.

The invention discloses a strain of saccharomyces cerevisiae CPJ-02 with high acid resistance, high ethanol content and strong ester aroma generation and application of the saccharomyces cerevisiae CPJ-02, the strain of the saccharomyces cerevisiae CPJ-02 has been preserved in China Center for Type Culture Collection on June 27, 2024; the preservation number of the strain is CCTCC NO: M 20241388. The saccharomyces cerevisiae CPJ-02 strain is milky white to faint yellow after being cultured on a YPD solid plate for 48 hours, the surface is dry and matte, the texture is slightly rough, and the colonial morphology is round. The saccharomyces cerevisiae CPJ-02 strain has prominent high ethanol tolerance, and still has activity greater than or equal to 92% in a 12% ethanol environment; and the fermentation product is rich in aroma and high in ethyl caprylate and phenethyl alcohol content, more than or equal to 25 volatile substances are detected by GC-MS (gas chromatography-mass spectrometry), and the fermented product is rich in fruit fragrance and has ester flower fragrance. The saccharomyces cerevisiae CPJ-02 strain is suitable for production of high-concentration wines and directional production of low-concentration healthy fermented beverages, fermented foods and aroma compounds.

The invention discloses a control system of a device for drying metal powder containing combustible volatile substances, and belongs to the technical field of automatic control. In the system, a first subtracter generates a sequence first error signal according to the weight of two pieces of metal powder provided by a weighing sensor at an interval of a time step length; the second subtracter generates a sequence second error signal according to the actually measured temperature and the set temperature in the drying cavity provided by the temperature sensor; the reinforcement learning module respectively generates a first state and a second state according to the sequence first error signal and the sequence second error signal, and generates a control strategy of a PID controller for controlling the working state of the heater according to the first state and the second state; and the fire detection model estimates the probability value of the fire in the drying cavity according to the oxygen concentration in the drying cavity, the concentration of the volatile matter and the actually measured temperature, and if the probability value exceeds a threshold value, the stored inert gas is injected into the drying cavity to reduce the probability of the fire. The explosion risk caused by combustible gas accumulation is avoided.

The invention belongs to the technical field of aerosol generation, and provides aerosol generation equipment and a control method and equipment thereof, a medium and a program product, the aerosol generation equipment comprises a shell, and further comprises a heating element arranged outside a heating cabin in the shell and used for heating an aerosol matrix or residual substances in the heating cabin; the adsorption element is detachably arranged in the heating cabin and is used for adsorbing volatile substances in the residual substances under the condition that the heating element performs heating operation on the residual substances; the controller is connected with the heating element and is configured to execute the following operations: under the condition that a cleaning instruction is received, the heating element is controlled to execute heating operation on the residual substance, and the heating temperature of the heating operation is higher than the melting point temperature of the residual substance and lower than the temperature-resistant temperature of the adsorption element; and when the heating temperature of the heating operation reaches the preset temperature range and the heating duration reaches the preset duration, the heating element is controlled to stop the heating operation.

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.

1. The name of this design product: Nasal Aspirator. 2. Purpose of this product design: It is used to insert volatile substances into the nostrils for breathing and absorption. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

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 invention belongs to the field of plant protection, and discloses a method for inducing bemisia tabaci by a persicaria orientalis volatile matter and a related application of the persicaria orientalis volatile matter to the bemisia tabaci. A Y-type olfactometer behavior experiment shows that the bemisia tabaci has a remarkable chemotactic reaction on the red-knees herb, and the preference of the bemisia tabaci is obviously higher than that of a common host tomato. Furthermore, solid phase microextraction (SPME) is combined with gas chromatography-mass spectrometry (GC-MS) to analyze the smell components of the polygonum hydropiper, and various volatile substances possibly participating in chemotaxis are screened out. The method can be used for developing a plant source smell attractant and improving the pest monitoring and green prevention and control efficiency.

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.

The invention discloses breeding of a pichia kluyverovii strain with high yield of beta-lyase and application of the pichia kluyverovii strain in beer fermentation, and belongs to the technical field of bioengineering. The pichia kluyveri B21 is preserved in the China General Microbiological Culture Collection Center, and the preservation number of the pichia kluyveri B21 is CGMCC (China General Microbiological Culture Collection Center) No.34028. The strain can produce high-yield beta-lyase, and the beta-lyase is catalyzed to produce volatile mercaptan and endows beer with fruity flavor. The contents of ethyl acetate, isoamyl acetate, isobutyl acetate, ethyl nonanoate, ethyl caprate, phenethyl acetate, linalool and nerol generated by the pichia kluyveri B21 in a hops simulated culture medium are relatively high, and the volatile substances can increase the fruit fragrance and flower fragrance of beer and enrich the flavor of the beer. The pichia kluyveri B21 is expected to be added into production of other food and beverages so as to enrich flavor substance components.

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 invention discloses a preparation device of a PVC environment-friendly calcium-zinc liquid heat stabilizer, and relates to the technical field of PVC heat stabilizer production. The device comprises a bottom plate, a mounting structure is fixedly connected to the upper end face of the bottom plate, lifting structures are symmetrically and fixedly connected to the middle of the upper end face of an inner cavity of the mounting structure, inclined telescopic structures are symmetrically and fixedly connected to the upper end face of the inner cavity of the mounting structure with the lifting structures as the center line, and a heating structure is arranged on the lower portion of the inner cavity of the mounting structure; a stirring driving structure is arranged in the middle of the lower end face of the bottom plate, through an inclined telescopic structure and a reaction structure on the inclined telescopic structure, a stirring structure is installed and placed in the using process, then preparation raw materials are stored and processed through a sealing frame and a sealing plate, the safety of the operation environment is guaranteed, and volatile substances are prevented from leaking out; the environment-friendly requirement is met, waste is reduced, personnel can conveniently store and take the reaction structure through the sliding frame, thorough cleaning is facilitated, and cross contamination is prevented; the modular structure is convenient to replace or maintain, and the service life of equipment is prolonged.

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 relates to the technical field of polymer modified material preparation, and discloses a polymer modified material preparation device and process, the polymer modified material preparation device comprises a screw extruder, a drying and mixing mechanism is arranged on the top surface of the screw extruder, and a stretching and winding mechanism and a cutting mechanism are arranged on the right side surface of the screw extruder. Through the drying and mixing mechanism, materials are put into a mixing barrel through a feeding pipe by utilizing the mixing barrel in the mixing part, meanwhile, a power line of a heating plate is connected with a power supply for heating, meanwhile, a fan is started to suck the materials outwards through a filter plate, and the sucked materials are heated through the heating plate, enter a conveying pipe and finally enter the mixing barrel for drying; meanwhile, a heat-resistant motor is started, the heat-resistant motor reaches a rotating rod I, so that the rotating rod I drives mixing blades to mix and dry, when a filter plate is blocked, the filter plate is pulled, the filter plate and a sliding groove slide to be pulled out of the drying box, water or volatile substances in the raw materials are removed, and the modification effect and the product quality are improved.

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 kind of high-efficiency preparation methods of precision temperature control liquid metal heat dissipation gasket, it is related to heat dissipation gasket preparation technical field, the specific steps of the preparation method are as follows: S100, material preparation: liquid metal material selects gallium-indium alloy, reinforcing fiber selects carbon fiber, adhesive selects high-temperature-resistant organic silicon adhesive, the application is carefully designed and accurately controlled by being set with multiple heating stages, and the temperature, heating time and temperature rising rate of each stage, in initial stage, lower temperature and slower temperature rising rate are used, material is gradually preheated, and volatile substances in it are effectively removed, lay a good foundation for subsequent reaction, after entering intermediate stage, temperature is increased to promote the full mixing and reaction of liquid metal and other materials, the microstructure of gasket is optimized, to improve its performance, in last stage, gasket is solidified by reducing temperature Forming, this process ensures the structural stability and performance reliability of gasket.

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.

The invention provides a preparation method of a precursor of a lithium ion battery negative electrode material. A core of the precursor is pre-carbonized. The invention also provides a precursor obtained by the preparation method of the precursor of the lithium ion battery negative electrode material. The invention further provides the pre-carbonization furnace used in the preparation method of the precursor of the lithium ion battery negative electrode material. According to the method, volatile substances in the petroleum coke are removed, a graphite-like lamellar structure is formed through high-temperature pretreatment, the coating tightness of the asphalt and the petroleum coke is improved, and gradient heating in the coating process is achieved, so that the problem of interlayer spacing reduction of the coated precursor at a high temperature is relieved, and the problems of coating layer falling, air holes and bumps are relieved at a low temperature; therefore, the performance of the negative electrode material is improved.