183results about How to "Harmful" patented technology

The invention relates to a resistance wire heating device for non-burning cigarettes. The device comprises an outer shell, an insulation jacket and a heater, a cigarette inlet allowing tobacco products to be inserted in is formed at the front end of the outer shell, the rear end of the outer shell is connected with an air inlet, the heater is arranged in the outer shell, and the insulation jacket is arranged between the heater and the outer shell. A resistance wire heating element is adopted as the heater and comprises a resistance wire and a ceramic heat-conducting sleeve, the resistance wire is arranged on the outer surface of the ceramic heat-conducting sleeve, a heating chamber for accommodating the tobacco products is arranged in the middle of the ceramic heat-conducting sleeve, the front end of the heating chamber is communicated with the cigarette inlet, and the rear end of the same is communicated with the air inlet. The resistance wire heating device has the advantages of high heat efficiency, constant-temperature heating, high temperature control precision, good stability and long service life.

The invention discloses a method for comprehensive recovery of a heavy metal from a spent solder stripper, which mainly comprises steps as follows: a first step: adding pure ammonia to the spent solder stripper and adjusting pH to 9-10 to cause tin and iron to generate precipitation; a second step: obtaining a filter residue and a filtrate by filtration, wherein the main component of the filtrate is a copper ammonia solution; a third step: firstly breaking the filter residue obtained in the second step into small particles, then adding a sodium hydroxide solution to the filter residue under stirring conditions, finally reacting the tin with the sodium hydroxide completely to generate sodium stannate; a fourth step: obtaining the filtrate by filtering; a fifth step: adding sodium sulfide to the filtrate under stirring conditions, then making the solution rest and precipitating the solution; a sixth step: obtaining the filtrate by filtration; a seventh step: dewatering the filtrate obtained in the sixth step to obtain the sodium stannate. The spent solder stripper with high heavy metal content, great danger, complex component and big disposal difficulty is taken as an object. The spent solder stripper can be directly employed after the tin in the spent solder stripper is recovered. The method has good economic benefits and environmental benefits.

The invention relates to the field of molecular biology detection, in particular to detection of novel coronavirus, influenza A virus and influenza B virus. The invention provides a composition for detecting the viruses, and meanwhile, the invention further provides a kit containing the composition, application of the composition and a method for detecting and typing the viruses causing respiratory tract infection. The composition is combined with a fluorescent probe method, three viruses causing respiratory tract infection can be detected and typed at the same time in one tube, and the composition, the kit and the method have the advantages of being low in cost, high in flux, short in consumed time, easy and convenient to operate and capable of avoiding false positive caused by cross among samples and environmental pollution.

The invention discloses a method for dealkalizing red mud by uniting smoke and a basic material. The processing method comprises the following steps: grinding and smashing bayer's process red mud, wherein the particle size of the smashed red mud is 160-200 meshes; mixing the red mud and water to form a solid-liquid mixture, wherein the weight proportion of the red mud to the water is (1:3) to (1:10); adding a certain proportion of basic material (acetylene sludge or lime) to react, wherein the reaction temperature is 60 DEG C-100 DEG C and the time is 1-2h; introducing the smoke / simulated smoke to the solid-liquid mixture for acidizing reaction after reaction, wherein the flow of the introduced CO2 is 0.2-1L / min, the flow of SO2 is 20-60mL / min, the reaction time is 60 DEG-80 DEG C, and the time is 1-2h; and carrying out suction filtration on the obtained solid-liquid mixture to separate after the reaction is completed. Separated and processed residual can be used for recycling aluminum and iron and used as a building material with a large scale, the situation that scumming is generated by application of non-dealkalized red mud is solved, and the method provides a solving way for wide application of red mud in building material prospect.

The invention relates to an electromagnetic wave heating device for non-burning cigarettes. The device comprises an outer shell, a heat insulation sleeve and a heater. A cigarette inlet allowing tobacco products to be inserted in is formed at the front end of the outer shell, an air inlet is formed at the rear end of the outer shell connectively, the heater is arranged in the outer shell, an electromagnetic wave heating element is adopted as the heater and comprises a coil and an inner heating sleeve, the coil and the inner heating sleeve are matched to realize heating, the heat insulation sleeve is arranged between the coil and the inner heating sleeve, insulation washers are arranged at two ends of the electromagnetic wave heating element respectively, the inner heating sleeve is hollow to form a heating cavity for accommodating the tobacco products, the front end of the heating cavity is communicated with the cigarette inlet, and the rear end of the heating cavity is communicated with the air inlet. By the device, aroma components in the cigarettes can be removed by destructive distillation through an electromagnetic wave heating mode in stead of directly burning the cigarettes, harm of the cigarettes to human bodies is reduced, and a consumer is ensured to obtain a tobacco feature feeling.

The invention discloses a multifunctional comprehensive tester for testing mechanical characteristics of deformation of pavements and decks, which belongs to the test equipment of mechanical properties. The multifunctional comprehensive tester mainly comprises a supporting stand, a controllable temperature area, a vertical loading system, a vertical load boundary balancing system, a mechanical crank connecting rod circulatory loading system, a loading displacement sensor and an integrated control display system. The time variations of loading and deforming are recorded after the test begins. The multifunctional comprehensive tester can partially load indentation tests and partially load creep tests, and can do partial cyclic loading test through utilizing the vehicle load which is generated by the mechanical crank connecting rod circulatory loading system and is simulated and repeatedly acted by harmonic load. The multifunctional comprehensive tester can finish multinomial system tests without changing a cramping apparatus, can fully obtain the relative dynamic-static mechanical properties of pavements and decks, anti deformation capacity index and important parameter C, phi of anti-shearing property of material, and can solve the problem that a deformation stability integrated test and comprehensive evaluation can not be done on engineering sites.

The invention relates to an object detection method, and especially relates to a hazardous article detection apparatus, a detection method, and an application thereof. A passive THz hazardous articledetection apparatus includes a visible light image sensor, a THz imaging sensor, a processor, an image memory, an operation table and a displayer, wherein the processor is respectively connected to the visible light image sensor, the THz imaging sensor, the image memory and the displayer. In the invention, a problem that hidden hazardous articles, carried by people, cannot be quickly and accurately detected in the prior art is solved, so that the apparatus and method has important significance for fighting against high-dangerous behaviors, such as violence and terrorism, revenge on society, etc. The apparatus, if successfully applied, can make criminal offenders frightened in mind and can reduce generation of such cases fundamentally.

The inventive embodiment discloses a method realizing heartbeat mechanism, which includes the following steps: a server judges whether to need client identification, according to the heartbeat request information of logging response information sending by the client; if need, carry out client identification; if not, return heartbeat response information; and if pass the identification, return heartbeat response information. The invention also discloses a server realizing heartbeat mechanism, which includes a logging response information return unit, used to return logging response information; a client identification judgment unit, used to judge whether to need client identification, and carry out the client identification if so; a client identification unit, used to carry out client identification according to heartbeat request information; a heartbeat request response unit, used to generate heartbeat response information. The invention also discloses a system realizing heartbeat mechanism, which includes a client side and a server side. The invention can realize selective identification on the client side.

The invention relates to a non-combustion smoking device based on resistance wire heating. The non-combustion smoking device based on resistance wire heating comprises a heating segment, a control segment and a power supply. The heating segment comprises an outer shell, a heat insulating sleeve and a heater. The front end of the outer shell is provided with a tobacco inlet for tobacco to insert, and an air inlet hole is formed in the rear end of the outer shell in a connected mode. The heater is arranged in the outer shell, and the heat insulating sleeve is arranged between the heater and the outer shell. A resistance wire heating element is adopted in the heater and comprises a resistance wire and a ceramic heat conduction sleeve body. The resistance wire is arranged on the outer surface of the ceramic heat conduction sleeve body, and the middle of the ceramic heat conduction sleeve body is provided with a heating cavity for containing the tobacco. The front end of the heating cavity is communicated with the tobacco inlet, and the rear end of the heating cavity is communicated with the air inlet hole. An inner cavity is formed in the control segment, a controller is arranged in the inner cavity, and the controller is connected with the power supply. The non-combustion smoking device based on resistance wire heating has the advantages that the heat efficiency is high, constant-temperature heating is achieved, the control precision is high, stability is good, and service life is long.

The technological process of utilizing ferrous sulfate comprehensively in preparing industrial gypsum and iron with lime as main material has the key point of bridging effect of calcium chloride. The technological process includes the steps of: dissolving ferrous sulfate in water, adding calcium chloride solution to produce calcium sulfate precipitate and ferrous chloride solution, filtering to separate calcium sulfate precipitate, adding lime milk into the filtrate and heating via stirring to produce ferric hydroxide precipitate, filtering, stoving the filter slag to obtain ferric oxide, and returning the filtrate. The obtained ferric oxide may be used in smelting iron, preparing iron oxide red, etc. The present invention has relatively low cost of utilizing ferrous sulfate.

The invention discloses a traffic safety control method and system based on DPI and cloud synchronization. The method comprises the following steps: using DPI technology to perform depth analysis on each packet that flows through a router, distinguishing malicious traffic and normal traffic, intercepting the malicious traffic, jumping a user to a prompt interface, and reminding the user that web pages to be accessed are harmful; and if the malicious traffic is the severe malicious traffic, then directly performing an interception operation, and prohibiting the severe malicious traffic to communicate with a client. The traffic safety control method based on the DPI and the cloud synchronization provided by the invention fully considers the diversity of security threats and the continuous development of private information stealing means, stores malicious links in the way of cloud storage, and updates a malicious linked database regularly; and meanwhile, the method also considers the present situation that the user is very lack of information security knowledge, and transfers the responsibility of the user privacy protection from the user itself to a public WiFi system, so as to realize the private information protection of the user technically.

The invention provides a Bosea sp. AS-1 strain capable of tolerating pollution of arsenic and antimony and oxidizing As(III). The strain is preserved in the China Center for Type Culture Collection (CCTCC). The address of CCTCC is Wuhan university, Wuhan, China, and the postcode is 430072. The preservation date is April 11st, 2016. The preservation number is CCTCC No.2016190. The 16S rDNA sequence of the strain is represented by SEQ ID No.1. The provided strain is obtained by separating and screening, is capable of oxidizing As (III) into As (V), and thus greatly reduces the harm of As in the environment. The provided AS-1 strain has a strong oxidizing and adapting performance and can be used to treat arsenic pollution.

The invention relates to a novel method of extracting fluoroquinolone type medicines in faeces of livestock and poultry. The method includes 1) grinding a freeze-dried sample of faeces of livestock and poultry, and sieving; 2) weighing 0.50-1.00 g of the sample, adding into a centrifuge tube, adding 5-10 mL of a calcium chloride-hydrochloric acid buffer solution having a concentration of 50%, performing vortex mixing for 1 min, performing ultrasonic extraction for 15-30 min, centrifuging at a speed of 4500 r / min for 10 min, and collecting the supernate; 3) separately subjecting standard samples of one or more than two of the fluoroquinolone type medicines to qualitative analysis by a high performance liquid chromatography instrument, and determining retention time; 4) creating a standard curve for each fluoroquinolone type medicine compound by adopting peak area as a vertical coordinate and adopting a concentration (ng / mL) corresponding to each fluoroquinolone type medicine as a horizontal ordinate; and 5) measuring the content of each target compound in the sample to be measured by high performance liquid chromatography, determining the type of each target compound according to the retention time, and determining the content of each target compound according to the corresponding standard curve. The method is good in repeatability and high sensitivity.

The invention provides a battery or capacitor packaging housing, which comprises a housing body, a cover plate (including a simple cover plate and a combined cover plate) welded at two ends of the housing body, and an explosion-proof injection and suction device, wherein the housing is mainly made of aluminum alloy or magnesium alloy material. A plurality of post holes are formed on the combined cover plate; positive and negative posts of the battery or capacitor penetrate through the post holes; positive and negative electrode plates of the battery or capacitor are connected with the respective posts by screw-fastening, riveting or welding; a base of the explosion-proof injection and suction device can be arranged on the cover plate or on the housing body, and can be integrated with the cover plate or the housing body or connected with the cover plate or the housing body in other manners (such as wielding); an explosion-proof kernel of the explosion-proof injection and suction device can be disassembled and replaced repeatedly; and the explosion-proof injection and suction device can prevent the occurrence of harmful explosion caused by overlarge pressure in the battery or capacitor, and also can be used as a channel for taking or placing materials in the product fabrication or maintenance; and wire thread inserts can be mounted on one or more parts of the housing, where threads are arranged. The material of the battery or capacitor packaging housing has the excellent performances, such as high weldability, light weight, high strength, high corrosion resistance, and high resistance to extreme temperatures. The battery or capacitor packaging housing has better performance than the existing similar housing, and is more suitable for the large-size energy storage elements and mobile elements in the new energy industry and new energy vehicle industry. Accordingly, the battery or capacitor packaging housing has important application value.

The invention discloses an organic light emitting diode (OLED) pixel array. The OLED pixel array comprises a plurality of pixel units, wherein the pixel units are arranged side by side in a line direction of the pixel array; each pixel unit comprises an R sub pixel, a G sub pixel and a B sub pixel; in each pixel unit, the B sub pixel is an intermediate sub pixel, and the R sub pixel and the G sub pixel are end sub pixels; and adjacent end sub pixels of two adjacent pixel units are same-type sub pixels. The invention also discloses a method for evaporating the pixel array by using a fine metal mask, wherein adjacent same-color sub pixels of the adjacent pixel units are evaporated in the same mask opening. The method has the advantages that color mixing is prevented, the resolution is improved, and the mask operation is facilitated. The invention also discloses an OLED display panel and display device applying the pixel array.

The invention relates to a drug-loaded embolism microsphere with a developing function and a preparation method thereof, and belongs to the technical field of medical instruments. The preparation method of drug-loaded embolism microsphere with the developing function under X-rays comprises the following steps of step 1, preparing a reversed-phase suspension polymerization oil phase; step 2, preparing an aqueous phase of a reversed-phase suspension polymerization system; and 3, carrying out reverse suspension polymerization. The method has the advantages that iodide reacts with microsphere hostmolecules in the synthetic reaction process, a steric hindrance effect is avoided, the reaction is more sufficient, the iodine element is uniformly distributed in the microspheres, and a complete andclear development image is formed under X-ray fluoroscopy; the iodine-containing alcohol is used as an X-ray-impermeable substance, so that the safety risk caused by additional addition of an organicsolvent or addition of a toxic and difficult-to-remove organic solvent is avoided; the microspheres are high in hydrophilicity, good in expansion capacity and rapid in adsorption and drug loading capacity and high in drug loading capacity. The preparation method is simple and can be completed through one-time polymerization reaction, and grafting modification and then polymerization reaction arenot needed.

An antioxidizing peptide for marine biota is a micro-molecular polypeptide consisting of 7 amino acid and containing 8 amino acid residues. Its preparing process is also disclosed. Its advantages are strong antioxidizing activity, high water solubility, and no poison and by-effect. It is suitable for food, cosmetics, medicines, etc.

The invention discloses a method for rapidly screening highly-concerned chemicals in surface water and soil. The method comprises the steps of screening a highly-concerned chemical list, grouping substances, optimizing mass spectrum conditions and chromatographic conditions, constructing a mass spectrum library and rapidly screening the highly-concerned chemicals. According to the method, samplesin surface water and soil are rapidly screened by adopting ultra-high performance liquid chromatography-quadrupole rod / electrostatic field orbitrap high-resolution mass spectrum, and based on accuratemass number, retention time, characteristic fragments and isotope distribution proportion, the samples are searched and matched with a mass spectrum library of highly-concerned chemicals for rapid qualitative analysis. A screening result can be obtained within 70min, the sample detection and treatment time is greatly shortened, the detection efficiency is improved, and technical support is provided for risk assessment and risk management of highly-concerned chemicals.

The present invention relates to the preparation process and is especially the preparation process of powdered soybean phosphatide. The preparation process includes the steps of: mixing concentrated soybean phosphatide material with acetone of 2-30 times volume and the first homogeneous extraction to make soybean phosphatide dissolve in the solvent; solid-liquid separation to make liquid phase enter mixed oil tank and solid phase phosphatide second extracted; extraction in the second extractor with acetone; the second separation of mixed liquid after the second extraction in centrifuge; powdering solid soybean phosphatide; vacuum heating to dry soybean phosphatide; and recovering mixed oil in mixed oil tank. The present invention is used in producing high-quality medical soybean phosphatide.

The invention relates to an oil paint capable of being cured by ultraviolet rays and a preparation method thereof. The oil paint is prepared from the following raw materials in parts by weight: 40-60 parts of an active polymer, 20-30 parts of an ionic compound, 3-5 parts of a special group polymer, 0.2-2 parts of an addition agent, 1-10 parts of a solvent and 10-20 parts of added resin. The preparation method comprises the following steps: stirring the active polymer, the ionic compound, the special group polymer, the addition agent, 60-80 wt% of the solvent and the added resin in a reaction container for 15-30 minutes, and adjusting the solid content to be not less than 85 wt% by the residual solvent to obtain the oil paint capable of being cured by the ultraviolet rays. Compared with the prior art, the oil paint has the advantages of better environmental protection performance, high curing efficiency, relatively strong adhesive force and the like.

The invention relates to a high-carbon-residue high-molecular emulsion microsphere and a manufacturing method thereof. The outer side of the high-molecular emulsion microsphere is a water-soluble high-molecular polymer, and the inner side of the high-molecular emulsion microsphere contains acrylonitrile or methacrylonitrile of over 40 wt% and other organic elements of below 60 wt%. The high-molecular emulsion microsphere is obtained through the method including the steps that under the condition of dispersion stability of the water-soluble high-molecular polymer with over 1000 molecular weights, emulsion dispersoids manufactured from 40-90 wt% acrylonitrile monomers or methacrylonitrile monomers and 10-60 wt% another kind of or kinds of copolymerized unsaturated monomers are subjected to emulsion polymerization on the premise that peroxide initiators and organic alcohols exist, and then the high-molecular emulsion microsphere is synthesized. The high-molecular emulsion microsphere can be applied to surface modification of inorganic powder materials, especially the surface modification of lithium ion battery anode materials and lithium ion battery cathode materials.

The invention provides a method for removing the surface and impurities of quartz ore. The method comprises the following steps: firstly, placing crushed stones into a plastic storage bin and closing the plastic storage bin; then adding an acid solution which is heated to 50-110 DEG C and has the concentration of more than 25% by mass percent into the storage bin through a pipeline; producing an acid gas through an atomizer; recovering the acid gas and the acid solution after the high-temperature acid gas and the acid solution react with the surface and impurities of quartz stone in the closed storage bin, and washing the crushed stones with water; obtaining clean quartz stone, neutralizing waste water generated by washing the crushed stones with alkali or lime, and performing cyclic utilization or standard emission. The method provided by the invention is simple in process, high in efficiency, low in cost, good in effect, free from environmental pollution and suitable for wide popularization and application.

The invention discloses a metal coated adhesive and a preparation method thereof, wherein the adhesive is characterized by comprising following materials: 30-45 parts of acrylate monomers, 55-65 parts of solvent, 0.3-1 parts of an initiator, 0-5 parts of modified resin, 0-5 parts of fumed silica and 0-10 parts of a flame retardant. The adhesive has the advantages of energy save, environment protection, low cost and excellent performance.

The invention relates to a Trojan virus analysis technique based on network conversation. The technique comprises the following operating steps: (1) obtaining a network data package through a bottom layer package capturing technique; (2) decoding the network data package and recombining IP block packages; (3) recombining TCP data flows; (4) tracking TCP conversation status, and respectively marking the conversation status to be semi-connection status, connected status, closed statue and deletion of TCP conversion according to whether the connection is completed or not; (5) when a received data package request is to disconnect the conversion connection, checking whether the current conversation status is connected right now, wherein if the current conversion status is semi-connection status, the host address of the source is a nonexistent host possibly, at the moment, recording an abnormal behavior host right now, and then counting; (6) when the stored count of the abnormal host in one minute is greater than 30, determining the host to be a host infected with Trojan virus.

The invention discloses an energy internet super-real-time state studying and judging algorithm,which comprises the following steps of allocating state studying and judging tasks to a local edge computing platform or a system center cloud platform for respectively carrying out the state studying and judging tasks on the basis of the frequency (support degree and confidence degree) of state data ofan energy internet system,and forming a state-based system operation strategy,wherein the strategy of the local edge computing platform is only executed locally,so that the accuracy and effectivenessof the strategy can be ensured; the cloud platform studies and judges the state of the whole system,the generated strategy is used for controlling and coordinating the operation state of the whole energy internet,and robustness and reliability are achieved; and state research and judgment and strategy generation mainly adopt an artificial intelligence technology. Through cooperation of a local strategy and a global strategy,stability,high efficiency and timeliness of energy internet operation are guaranteed.

The invention discloses a closed dustproof light brick cutting machine which comprises a machine base, a workbench and a blade. The machine base comprises a support and supporting legs. The workbench is connected to the support in a sliding mode. A closed dust hopper is arranged below the support. An opening of the closed dust hopper is located on the support. A nozzle is connected to the side face of the dust hopper. A bearing block assembly is connected to the support and the blade is fixedly connected to the bearing block assembly. A sliding wheel shelf is arranged on the support and sliding idler wheels are arranged below the workbench, so that the workbench is connected to the support in sliding mode. The upper end of the workbench is connected to a front shield and a rear shield. The supporting legs comprise the first supporting leg and the second supporting leg. The lower end of the first supporting leg is connected to a movable idler wheel and the lower end of the second supporting leg is connected to an adjusting bolt. Generated dust can be deposited and discharged through the water spraying action, so that a large amount of dust is prevented from entering air in the cutting process. Meanwhile, due to an adjustable bolt structure and a movable idler wheel structure, the problems that on-site movement is inconvenient and the stability of the machine is difficult to adjust rapidly are solved.

The invention discloses a method for determining the content of bismuth in iron ores by a hydride generation-atomic fluorescence spectrometry method. The method comprises the following steps of preparing a sample solution and a blank solution of an iron ore sample, and preparing a bismuth standard solution; introducing the blank solution into an atomic fluorescence spectrophotometer, and determining the fluorescence intensity of the bismuth in the blank solution; introducing the sample solution into the atomic fluorescence spectrophotometer after blank value compensation, determining the fluorescence intensity of the bismuth in the sample solution, and acquiring the content of the bismuth in the sample solution according to the fluorescence intensity measured by the bismuth standard solution with known concentration. The content of the bismuth in the iron ores can be determined rapidly and accurately by utilizing the technical scheme provided by the invention.

The invention discloses a method for determining a lead content in iron ore through hydride generation-atomic fluorescence spectrometry. The method comprises the steps of preparing a sample solution of an iron ore sample and a blank solution of the sample, and preparing a lead standard solution; introducing the blank solution to an atomic fluorescence photometer, and testing fluorescence intensity of lead in the blank solution; and introducing the sample solution to the atomic fluorescence photometer after blank value compensation, testing fluorescence intensity of lead in the sample solution, and obtaining content of the lead in the sample solution according to the fluorescence intensity which is tested depending on the lead standard solution with known concentration. According to the technical scheme disclosed by the invention, the content of the lead in the iron ore can be rapidly and accurately determined.

The invention relates to the technical field of biology, in particular to a biosynthesis method for beta-alanine, and provides an enzyme which can convert acrylic acid into the beta-alanine. Biosynthesis of the beta-alanine is performed with the enzyme, so that high-temperature and high-pressure reaction related to a chemical method can be avoided, and a side reaction is controlled well; the use of acrylonitrile is avoided; the acrylonitrile has high toxicity and does great harm to the environment; while the crylic acid is taken as a raw material in the biosynthesis method, and the crylic acidhas low toxicity, and has a slight influence on the environment; and compared with an existing biological method, the biosynthesis method only needs one-step reaction, so that the reaction course isshortened, the beta-alanine can be prepared within 24 hours, and the preparation efficiency is increased.

The invention discloses azadirachtin-containing botanical insect aerosol and a preparation method thereof and aims at solving the problem that the effect of the existing insect aerosol is not ideal. The azadirachtin-containing botanical insect aerosol comprises the following components in percentage by weight: 0.1-3% of azadirachtin, 1-20% of neem oil, 0.1-3% of a surface active agent, 8-15% of a cosolvent, 1-10% of an emulsifying agent and the balance of a solvent. The azadirachtin-containing botanical insect aerosol has the advantages that azadirachtin and neem oil are botanical natural active substances, high efficiency, low toxicity, no residue and safety for a human body are realized, indoor environment is not polluted, the requirement of people for environmental friendliness of a hygienic insecticide is met, and the azadirachtin-containing botanical insect aerosol is applicable to control of health pests in places to live, working places, dining places and the like.