661 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 relates to the technical field of tourism services, in particular to a grease detection device and method for edible oil production and processing, and a system comprises a spectral data acquisition module, a component ratio calculation module, a spectral feature analysis module, a chemical component deviation evaluation module and a smell component fluctuation detection module. According to the method, accurate identification of edible oil component characteristics is improved by using the laser Raman spectrometer, fine analysis of complex components is realized by combining gas and liquid chromatograms and mass spectrometers, release of volatile substances is monitored by the electronic nose sensor, and environmental adaptability and dynamic response capability of data are enhanced. Through automatic abnormal data elimination and normalization processing, the data consistency and standardization level are improved, the accuracy of sample classification and edible oil safety assessment is further improved through multi-parameter ratio calculation and peak position offset analysis, the data processing flow is optimized, automation and intelligence of the detection system are enhanced, and the detection efficiency is improved. And the efficiency and the precision of edible oil detection are obviously improved.

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.

A coke product configured to be used in foundry cupolas to melt iron and produce cast iron products is disclosed herein. In some embodiments, the coke product has a Coke Reactivity Index (CRI) of at least 30% and an ash fusion temperature (A FT) less than 1316° C. Additionally or alternatively, the coke product can comprise a fixed carbon content of at least 80% and / or a volatile matter content of no more than 1.0%.

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 relates to the technical field of semiconductor gas sensors for gas detection, in particular to an in-situ construction method and application of a gas sensor for volatile aroma substance detection, and the in-situ construction method comprises the following steps: mixing an aqueous solution of zinc nitrate hexahydrate and an aqueous solution of 2-methylimidazole according to different molar ratios to obtain a precursor solution; upwards fixing a planar electrode on the surface of a glass slide, and then transferring the planar electrode into the precursor solution; carrying out hydrothermal reaction on the precursor solution at 90 DEG C for 4 hours, after the hydrothermal reaction is finished, cooling to normal temperature, taking out the glass slide, washing the surface of an electrode by using deionized water, removing impurities, and then carrying out drying treatment; calcining the obtained dried electrode in an air atmosphere at 500 DEG C for 2 hours to construct an in-situ growth semiconductor sensor; according to the present invention, the rapid sensing response on nine volatile aroma substances is achieved, and the excellent gas sensitive characteristic is represented in the gas sensitive research on the volatile substance ocimene in the volatile aroma substances.

The invention relates to the field of environmental monitoring, and discloses a system for collecting and preprocessing a volatile organic compound sample in water based on a headspace principle, which constructs a full-automatic physical execution chain through multi-thread interrupt control, PID closed-loop regulation and a mechanical arm state machine. Comprising the following steps: constructing a pre-packaged intelligent sample bottle, encrypting and storing a freeze-dried internal standard substance, a sealing parameter and a calibration curve in a UHF RFID tag, and eliminating the risk of manual intervention; on the basis of a multi-thread parallel control technology, constant-speed sampling, three-stage gradient filtering and environmental parameter binding are synchronously executed, and full-process automation of data acquisition is realized; a physical model is adopted to drive a state machine, balance time is dynamically calculated through a Henry constant, and nitrogen purging pressure closed-loop control is combined, so that the recovery rate of low-volatile substances is increased; a quantum random number generator and a topological data association technology are utilized to construct a structured data packet containing a timestamp, an environment parameter and a quantum check code, and it is ensured that data cannot be tampered.

The invention belongs to the technical field of food flavor engineering, and discloses a Maotai-flavor Baijiu flavor composite essence based on a non-volatile substance release promoting effect, and the composite essence is composed of a volatile aroma substance, a non-volatile organic acid and an amino acid. Aiming at the technical bottlenecks of rapid attenuation of aroma intensity of volatile components and single flavor dimension in the existing Maotai-flavor Baijiu flavor compound essence blending technology, the invention creatively constructs a molecular synergistic system of volatile and non-volatile flavor components. By adding non-volatile substances, the effect of enhancing the flavor of the Maotai-flavor Baijiu flavor composite essence is achieved. The technology not only completely reproduces the flavor structure of the traditional solid-state fermented Maotai-flavor liquor, but also endows the compound liquor and flavor foods (such as Maotai-flavor baked products, compound seasonings and non-alcohol ready-to-drink beverages) with a continuous and stable aroma releasing characteristic, and provides a molecular-level regulation and control scheme for upgrading the sensory quality of liquor flavor standardization and food industrial production.

The invention relates to the technical field of microorganisms, in particular to saccharomyces cerevisiae CEC NW94 and application thereof. The invention provides the Saccharomyces cerevisiae CEC NW94, and the Saccharomyces cerevisiae CEC NW94 is used for brewing the wine, so that the contents of glycerol and lactic acid can be increased, and the yield of volatile acid can be reduced; the synthesis of volatile substances such as ethyl 2-methylbutyrate, isoamyl alcohol and linalool is promoted, and the generation of acetic acid is inhibited, so that the wine presents complex aroma of black fruits, mushrooms and the like, and the odor of herbaceous plants, herbal medicines, vinegar and the like is effectively reduced; in addition, the strain can improve the umami of the grape wine, and improve the aroma purity, the aroma concentration, the wine body, the aftertaste and the complexity. According to the method, the flavor substances of the dry red wine are controlled through a microbial metabolism regulation and control technology, and a new technical scheme is provided for high-quality wine production.

The invention belongs to the technical field of bioengineering, and particularly relates to an application of EcorOBP7 in combination with odor information molecules, and the nucleotide sequence of the EcorOBP7 is as shown in SEQ ID NO.1; the odor information molecules comprise at least one of (E)-beta-farnesene, (E)-beta-myrcene, 3-methylbutyraldehyde, (Z)-beta-ocimene, linalool and cis-acetamino acetate. The odor information molecules are used for detecting the odor of the odor information molecules, and the odor information molecules comprise at least one of (E)-beta-farnesene and (E)-beta-myrcene. The invention finds that EcorOBP7 is a broad-spectrum binding protein, can interact with various information molecules, and can be strongly bound with substances such as (E)-beta-farnesene and cis-acetamido acetate, so that EcorOBP7 can sense odor molecules in the environment through EcorOBP7 highly expressed on antennas of EcorOBP7. Female insects can find proper hosts and spawning sites by distinguishing volatile substances of plants, male insects can find the female insects for mating through perceptual pheromones, and it is indicated that the protein can adjust the foraging and spawning behaviors of eutrophus maculans.

The invention relates to the technical field of aquatic animal living body transportation, and discloses a sea urchin long-distance transportation synergistic method based on dry transportation and anhydrous volatile anesthesia, which comprises the following steps: placing sea urchin in a closed container, using a natural volatile substance as an anesthetic, loading and volatilizing through an adsorption material, and performing anhydrous anesthesia on the sea urchin; the anesthetized sea urchin is inversely placed on a fixing support with a mesh structure in a transportation container in the posture that the mouth face faces upwards and the thorns face downwards, and the sea urchin is prevented from rolling over in the transportation process through the self-locking effect of the thorns and meshes; a functional interlayer is arranged in the fixing support, and a temperature control material and a moisturizing material are placed in the functional interlayer at the same time to maintain the temperature and humidity of the transportation environment; after transportation, the sea urchins are placed in seawater containing the cactus extract for initial recovery and then transferred to flowing natural seawater to complete unified recovery, a whole-process collaborative protection chain of anhydrous anesthesia loss prevention, dry transportation steady state maintenance and rapid water phase restoration can be constructed, and the dry transportation survival rate and quality are remarkably improved.

A method is presented for determining a likelihood of an ignition hazard. The method comprises receiving a current waveform for a lightning strike event at a conductive member that forms an interface with a decomposable member. Material parameter inputs for the conductive member and the decomposable member are received. Based at least on one or more of the received material parameter inputs and an energy from the current waveform, a heating of the decomposable member is resolved, and a quantity of volatiles within the interface volume are determined. A total pressure generation within the interface volume is determined. A probability of ignition hazard by the lightning strike event is output based on a comparison of the total pressure generation and a containment pressure threshold for the interface volume.

The invention discloses a soybean germplasm resource viability small sample classification prediction method, system and device, and relates to the technical field of soybean germplasm resource viability classification, and the method comprises the steps: obtaining a multi-modal data set of sample soybean germplasm resources; the multi-modal data set is preprocessed; based on the preprocessed multi-modal data set, training a soybean germplasm small sample viability detection model to obtain a soybean seed viability detection model; hyperspectral data and volatilization data of the soybean seeds to be detected are obtained, the soybean seed viability detection model is used for carrying out viability detection on the soybean seeds to be detected, and the viability detection result of the soybean seeds to be detected is obtained. According to the method, the hyperspectral data and the volatilization data of the soybean seeds to be detected are integrated, and the internal chemical characteristics and the volatile substances released from the outside of the soybean seeds are comprehensively considered, so that the vitality of the soybean seeds is more comprehensively and accurately evaluated.

The present invention relates to the technical field of physiotherapy equipment, and particularly to an infrared pulsating moxibustion instrument, which includes an installation box, a connecting arm and a physiotherapy lamp. The connecting arm is rotatably connected to the installation box, and the physiotherapy lamp is rotatably connected to the connecting arm. The physiotherapy lamp includes a housing, a moxibustion unit, a circulation mechanism and a heat insulation net. The housing is fixedly connected to the connecting arm, the moxibustion unit is arranged in the housing, the circulation mechanism is arranged in the housing and is in transmission connection with the moxibustion unit, and the heat insulation net is connected to the bottom of the housing. The purpose is: during moxibustion treatment, the volatile substances generated by the combustion of moxa wool are combined with infrared irradiation treatment to treat the part to be physiotherapied. There is no need to use the heat generated by the combustion of moxa wool. The whole device is simple to operate, smokeless, non-burning and has no side effects, and it is convenient to process the heated moxa wool, which is simple and convenient.

The invention relates to the technical field of preparation processes, and discloses ancient Huangtai liquor, which is prepared from the following components in percentage by weight: 50 to 55 percent of base liquor, 10 to 15 percent of medicinal and edible traditional Chinese medicinal material extract, 2 to 4 percent of honey, 0.1 to 2 percent of flavor regulator and the balance of purified water, the medicinal and edible traditional Chinese medicinal materials comprise at least one of angelica sinensis, lily, radix ophiopogonis, Chinese dates, Chinese wolfberry fruits, American ginseng, rhizoma polygonati, papayas, astragalus membranaceus and poria cocos, and the liqueur is prepared through the processes of stepped extraction, compound blending, ultrasonic-assisted homogenization, dynamic ageing and membrane filtration. According to the invention, through a stepped extraction process, temperature and time are regulated and controlled in stages, volatile components are preferentially extracted at low temperature, and then non-volatile substances are extracted at medium temperature, so that effective components in the traditional Chinese medicinal materials are fully extracted, the natural flavor of the traditional Chinese medicinal materials is retained, the extraction rate of the effective components is improved, and the flavor level of the liqueur is enriched.

The utility model discloses a fin type multi-effect evaporation and concentration device, which comprises a first-effect evaporation and separation device, a second-effect evaporation and separation device, a third-effect evaporation and separation device and a fourth-effect evaporation and separation device, wherein the first-effect evaporation and separation device is used for heating liquid feed to evaporation temperature to evaporate volatile substances so as to realize separation and obtain primary feed; the first-effect fin type heat exchanger is used for evaporation and compression; the second-effect evaporation and separation device is used for further evaporating and separating the vaporized liquid; a coil heat exchanger for evaporation and compression is arranged; and the matching device is used for controlling the first-effect evaporation separation device and the second-effect evaporation separation device. According to the utility model, the spiral plate type heat exchanger is arranged in the heater to collect residual steam of fresh steam in evaporation and concentration, and the heat of the residual steam is used for heating feed liquid, so that the heat exchange efficiency is improved.

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 relates to the technical field of green prevention and control of agricultural pests, in particular to a nerolidol-based female bactrocera cucurbitae attractant and application thereof. The female bactrocera cucurbitae attractant takes nerolidol as a single active ingredient, the effective concentration is 0.01 mg / mL, and a solvent is selected from distilled water, dimethyl sulfoxide (DMSO) or corn oil. Experiments show that the attractant has a high attraction rate on female adult bactrocera cucurbitae under the concentration, and keeps stable activity in a high-temperature environment of 26-35 DEG C. When the attractant is applied, a trapping carrier is coated with the attractant and placed in a field trapping device. The specific taxis of female bactrocera cucurbitae to nerolidol which is a plant rot characteristic volatile matter is utilized for the first time, the limitation of chemical pesticide resistance is broken through, and the method has environmental friendliness and high-temperature adaptability and can be widely applied to pest monitoring and green prevention and control in melon fruit and vegetable planting areas.

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 invention discloses a cricket abnormal smell detection device which comprises a detection cylinder, an upper cover is inserted into the upper end of the detection cylinder, a rubber sealing ring is arranged at the insertion position of the detection cylinder and the upper cover, the detection cylinder is connected with a base and the upper cover through a threaded cylinder in a threaded or buckled or pressure contact mode, and a detection assembly is arranged in the base. A gas inlet is formed in the center of the upper end of the upper cover, a gas inlet filtering assembly is arranged in the gas inlet, and a position adjusting hole is formed in the right side of the upper end of the detection cylinder. The second detection channel accurately recognizes components of volatile substances, such as insect pheromones or irritant chemical substances, through the spectral analysis technology, the detection accuracy and reliability are improved through the double-channel design, it is ensured that rapid preliminary screening and accurate qualitative detection can be achieved, and cheating of the crickets participating in the competition by smearing violation substances is effectively prevented.

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 drying oven device which is used for preparing semiconductor products and comprises a drying oven body and an exhaust assembly. The oven body is provided with a first containing cavity used for containing a semiconductor structure and conducting high-temperature baking. The exhaust assembly is arranged on the outer side of the top of the drying oven body and provided with an exhaust pipe communicating with the first containing cavity, and the exhaust pipe comprises a connecting pipe section which is connected to the top of the drying oven body and extends vertically and a flow guide pipe section which is connected to the upper end of the connecting pipe section and extends transversely. The flow guide pipe section is provided with a flow guide bottom wall inclining downwards in the direction away from the connecting pipe section from the upper end of the connecting pipe section, and a drainage opening is formed in the end, away from the connecting pipe section, of the flow guide bottom wall. According to the drying oven device, when the volatile matter is gathered into liquid foreign matter in the exhaust pipe, the liquid foreign matter can flow to the drainage port through the flow guide pipe section to be discharged, and the problems of product pollution and difficult cleaning caused by the fact that the liquid foreign matter flows back into the drying oven body are reduced or even avoided. The service cycle and the cleaning cycle of the exhaust pipe can be prolonged, and cost is reduced.

The present invention relates to a portable breath gas and volatile substance analyzer, which includes a breath input part for inputting breath into the analyzer by blowing, a breath delivery part connected to the breath input part, a breath storage part connected to the breath delivery part, a sensor provided in the breath storage part for detecting breath, and a microcontroller connected to the sensor, and the microcontroller is used to receive breath data from the sensor to analyze data of gases and volatile substances.