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41results about How to "Avoid difficult problems" patented technology

Method for determining 100% pure water spectrum through nuclear magnetic resonance logging spectrum T2

The invention discloses a method for determining the 100% pure water spectrum through the nuclear magnetic resonance logging spectrum T2. The method includes the following steps that firstly, the relation between the irreducible water saturation Swi of a reservoir stratum in an exploratory area and the geometric mean value T2g of the spectrum T2 is built according to known rock physical experiment characteristics, then the irreducible water saturation Swi of the logging spectrum T2 and the geometric mean value T2g of the spectrum T2 are calculated point by point by means of a bulb tube thin film model, the nuclear magnetic resonance centrifugal spectrum is built, and the 100% pure water nuclear magnetic resonance spectrum is built on the basis of the nuclear magnetic resonance centrifugal spectrum. A significant difference exists between a nuclear magnetic single and a 100% pure water nuclear magnetic signal when the reservoir stratum contains oil and gas, and accurate identification is carried out on fluid of the reservoir stratum by means of the difference. The 100% pure water spectrum is built through nuclear magnetic resonance logging information so that the real pore structure of the reservoir stratum can be reflected; in addition, by contrasting the difference between the actually measured nuclear magnetic resonance spectrum and the built pure water spectrum, the property of the fluid of the reservoir stratum is effectively identified, so that the problem that fluid identification during nuclear magnetic resonance logging is difficult due to crude oil properties and observing modes is solved, the application of the nuclear magnetic resonance logging information is improved, and the geological problem solving capacity is enhanced.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

A method and device for controlling text input in mobile device

The invention provides a method for controlling the text input in mobile equipment, which comprises a step of receiving voice information, a step of identifying the received voice information, and a step of displaying the text information corresponding to the voice information, wherein the text information is one or more types selected from western letter, Arabic number and special symbol. By repeating the steps, the process of inputting English word and the relevant Chinese pinyin is completed. The invention also provides a device for controlling the text input in mobile equipment, which comprises a voice reception module, a voice recognition module and a voice database. Additionally, the invention provides mobile equipment using the device, which may be mobile phone, personal digital assistant, pad computer, and so on. The invention can efficiently reduce the capacity of voice database and reduce the complexity of training process of voice recognition, and can be conveniently applied to various mobile equipment with good practicability.
Owner:YINGHUADA (SHANGHAI) ELECTRONIC CO LTD

Grids and method of manufacture

The invention relates to a method for manufacturing a grid. The method includes the following steps: a fundus of a semiconductor is provided; a first dielectric layer is generated on the fundus of the semiconductor; at least one second dielectric layer is generated on the first dielectric layer; a groove is generated between the first dielectric layer and the second dielectric layer, and the bottom of the groove exposes the surface of the fundus; the second dielectric layer is removed; an conductive layer is generated both in the groove of the first dielectric layer and on the first dielectric layer; an optical resist layer is reelingly coated on the conductive layer, and a graphic presentation is carried out to generate a grid graph which is arranged above the groove of the first dielectric layer; the conductive layer and the first dielectric layer which are not covered by the grid graph are removed in a corrosion way. The method can control the generated linewidth on the bottom of the grid more accurately.
Owner:SEMICON MFG INT (SHANGHAI) CORP +1

Novel short-process continuous copper smelting device and technology

The invention provides a novel short-process continuous copper smelting device and technology. The novel short-process continuous copper smelting device is composed of two fire refining furnaces, twoslag smelting furnaces and a multicomponent furnace, and all the furnaces are connected through sulfonium guiding pipes; the multicomponent furnace is located in the middle, and the fire refining furnaces and the slag smelting furnaces are arranged at the two ends of the multicomponent furnace correspondingly; all the furnaces are rotary horizontal cylinder-shaped furnace bodies and supported on afoundation through two supporting rollers, one of the supporting rollers is provided with a motor, and a gear drive mode is achieved; and the furnace bodies are arranged in the state of rotating around the axis, shells of the furnace bodies are made of steel plates, the furnace bodies are lined with refractory materials, and spraying guns are arranged at the bottoms in the furnace bodies. The novel short-process continuous copper smelting device and technology have the advantages that a large quantity of manpower and material resources are saved, the investment is low, and economic benefits are high; and the structure is simple, design is reasonable, the energy-saving and environment-friendly effects are achieved, and the great using and promotion value is achieved.
Owner:DONGYING FANGYUAN NONFERROUS METALS +2

Complex iron catalyst solution and preparation method thereof

The embodiment of the invention provides a complex iron catalyst solution and a preparation method of the complex iron catalyst solution. The complex iron catalyst solution is prepared from the following raw materials: an iron source containing sulfate radicals, an organic complexing agent, a pH regulator and a stabilizer, wherein the molar ratio of the organic complexing agent to the iron element in the iron source is 1.0-2.0, the molar ratio of the stabilizer to the iron element in the iron source is 1.0-2.0, and the pH value of the complexing iron catalyst solution is adjusted to 8.0-12.0 by the pH regulator. The complex iron catalyst solution disclosed by the embodiment of the invention can be used for removing hydrogen sulfide, that is, oxidizing hydrogen sulfide gas into elemental sulfur, and can improve the desulfurization efficiency.
Owner:德微科技有限公司

A taxi passenger lost article fetching system

The invention provides a taxi passenger lost article fetching system. The taxi passenger lost article fetching system comprises a plurality of camera identification devices. wherein the camera identification devices are arranged at the tops of the taxies with different vehicle information and used for recognizing the faces and carried objects of passengers so as to judge and obtain the face information and lost article information of the passengers; and the lost article storing and taking device used for storing lost articles and recognizing the faces of the passengers so as to take back the lost articles; a processing server which is in communication connection with the camera shooting recognition device and the lost article storage and retrieval device and used for processing the passenger information and the lost article information; And passenger terminals which are respectively held by passengers with different passenger information and are used for enabling the passengers to reserve the taxi.
Owner:UNIV OF SHANGHAI FOR SCI & TECH

Optical module

The invention relates to an optical module, which relates to the technical field of optical fiber communication. The optical module is used for receiving burst light, and comprises a light source device, an optical coupling device, a first photodetector, a first transimpedance amplifier, and a limiting amplifier. The light source device is configured to emit continuous light having a wavelength identical to that of the burst light. The optical coupling device is used for receiving continuous light and burst light, and outputting a first optical signal obtained by combining the continuous lightand burst light, wherein the optical power difference of the first optical signal is smaller than the optical power difference of the burst light. The first photodetector is configured to receive thefirst optical signal and convert the first optical signal into a corresponding current signal. A first transimpedance amplifier is electrically connected to the first photodetector for converting a current signal into a first voltage signal in a continuous mode. The limiting amplifier is electrically connected to the first transimpedance amplifier for converting a digital signal corresponding tothe burst light based on the first voltage signal.
Owner:HISENSE BROADBAND MULTIMEDIA TECH

Seal ring for roller washing machine

A seal ring for a roller washing machine is used for an outer tub of the roller washing machine. The roller washing machine comprises a machine body and outer and inner tubs arranged in the machine body, wherein the inner tub is rotatably arranged in the outer tub, the open position of the outer tub is sleeved with a seal ring, a pipeline support and an annular pipeline are arranged in the seal ring, the annular pipeline is fixed to the pipeline support and is provided with an air inlet and multiple air outlets, the multiple air outlets are uniformly formed in the annular pipeline in the peripheral direction around the axis. The machine body is provided with a wind inlet, the air inlet is connected with the wind inlet through a wind inlet pipeline, and a wind guiding element and a heatingelement are arranged in the wind inlet pipeline. The problem is solved that bacteria likely breeds and peculiar smell is likely produced on the inner wall of the washing machine seal ring due to the fact that the washing machine is located in a damp environment for long time.
Owner:刘雪松

Material conveying device, kitchen storage tool and cooking appliance

The invention provides a material conveying device, a kitchen storage tool and a cooking appliance. The material conveying device comprises a transition cavity and a blower device, and the transition cavity is provided with a feeding opening for materials to enter, an air inlet for airflow to enter and a discharging opening for the materials to flow out of; the blower device is connected with the air inlet and used for blowing air into the transition cavity. According to the material conveying device, wind power is utilized to drive the materials in the transition cavity to be discharged to the discharging opening and further drive the materials to be conveyed to receiving devices such as cooking utensils of the cooking appliance. Compared with the usage of hydraulic conveying in the prior art, dry materials are conveyed, so that the problem of material residues caused when materials are attached to the inner wall of a pipeline through the adoption of water for conveying is solved; compared with the usage of gravity falling conveying in the prior art, during conveying by wind power, the gravity of the materials can be overcome, and the materials can be conveyed and lifted, so that the material conveying device can be applied to conveying occasions with different demands.
Owner:FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD

Post recruitment condition prediction method and device, computer equipment and storage medium

PendingCN110991709AGuaranteed objective reliabilityAvoid difficult problemsForecastingOffice automationSimulationThresholding
The invention discloses a post recruitment condition prediction method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring post requirement information of a post to be recruited; inputting the post requirement information into a preset resume delivery quantity prediction model to obtain a resume quantity estimated value meeting the post requirement to be recruited within a preset time period; and comparing the resume quantity estimated value with a preset resume quantity threshold, and guiding a recruiter to adjust the post requirement information according to a comparison result. According to the method, prediction is carried out by comprehensively considering various microscopic factors, so that a prediction result is objective and reliable, and a moderate resume screening passing rate is ensured in a resume screening process. Moreover, according to the method, corresponding post requirements and post description suggestions can beautomatically given according to the recruitment demand and urgency degree of the recruiter, and the problem that the post requirements are difficult to formulate due to the fact that the actual recruitment situation cannot be visually known is avoided.
Owner:平安金融管理学院

Transfer cavity, feeding system and cooking utensil

ActiveCN107296504AAvoid the problem of incomplete nestingAvoid residueCooking vessel constructionsEngineeringMechanical engineering
The invention provides a transfer cavity, a feeding system and a cooking utensil. The transfer cavity is provided with an inner cavity body, a material inlet, a material outlet and a fluid inlet are formed in the transfer cavity, and the inner cavity body is communicated with the material inlet, the material outlet and the fluid inlet, wherein the fluid inlet is formed in the bottom wall of the transfer cavity or the position, relatively close to the bottom wall of the transfer cavity, of the side wall of the transfer cavity. According to the transfer cavity in the technical scheme, gas can enter the transfer cavity approximately from the bottom position of the transfer cavity so that materials can be easily lifted and dispersed through wind power, the problems that the materials are stacked in the transfer cavity and accordingly the materials are difficult to drive and discharge and the like are avoided, it can be achieved that the materials are completely discharged from the transfer cavity and no residues exist, and the hygienic safety of the product is improved.
Owner:FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD

Design method of low-pass filter for rotating equipment characteristic signal acquisition

PendingCN111490753AImprove efficiencyConvenient for actual engineering needsDigital technique networkControl engineeringComputer science
The invention discloses a design method of a low-pass filter for rotary equipment characteristic signal acquisition. The design method comprises the following steps: S1, acquiring a rotary equipment characteristic signal, a highest frequency component required to be reserved by low-pass filtering and a lowest frequency component required to be filtered; S2, designing a group of low-pass filters according to the highest frequency component required to be reserved and the lowest frequency component required to be filtered in low-pass filtering; S3, adopting a low-pass filter to carry out filtering processing on the rotating equipment characteristic signals, and determining an optimal low-pass filter and a corresponding differential equation; and S4, establishing a low-pass filter differential equation comparison table under different filtering requirements. According to the method, the problem that derivation of an analog filter conversion digital filter is difficult to solve is avoided,and meanwhile the current situation that two parameters of the filter pass-band cut-off frequency and the stop-band cut-off frequency are selected according to experience is optimized; and a differential equation comparison table is established, so that the differential equation of the corresponding filter can be directly selected when actual engineering needs, and the purposes of high efficiencyand high feasibility are achieved.
Owner:沈阳科网通信息技术有限公司

Novel thermal inlet load dynamic prediction and regulation and control method

The invention relates to a novel thermal inlet load dynamic prediction and control method, mechanism and data hybrid driving is adopted, target energy consumption accurate control is taken as a core, a steady-state heat transfer equation and a machine language are fused for modeling, and the method is simple and feasible, has self-learning, self-adaption and self-optimization-approaching capacities, is suitable for time-division, time-division and temperature-division accurate heat supply, and has a wide application prospect. The condition of user side oversupply can be effectively avoided; and in combination with adjustment of the heat source side of the energy center, efficient operation of the whole system is facilitated, on-demand heat supply is achieved when the time scale and the space scale are small enough as much as possible, and energy conservation and emission reduction are remarkably achieved while the heat requirement of a user is met.
Owner:TIANJIN UNIV +1

Circuit breaker protection device with frame made of high-end equipment

The invention relates to the technical field of circuit breakers, and discloses a circuit breaker protection device with a frame made of high-end equipment, and the device comprises a housing, and theouter side of the housing is movably connected with a rotating button. The position of the placement plate can be changed according to actual needs, placement of the circuit breaker is facilitated, the problem of high operation difficulty caused by limited internal space of the protective shell is effectively avoided, the placement convenience of the circuit breaker is effectively improved, the actual use condition is better met, the position of the shielding tool is automatically changed through the combined action of the baffle, the first movable rod and the first rotary disc, the circuit breaker can be conveniently placed, and when the circuit breaker is moved to the protection shell, the placement opening is automatically shielded, dust is prevented from falling into the placement opening, the circuit breaker is effectively protected, and an electric wire of the circuit breaker is automatically fixed, so that the placement stability of the circuit breaker can be improved, and theconnection part of the electric wire and the circuit breaker can be prevented from being twisted; and the probability of wire breakage is increased, and normal use of the circuit breaker is not facilitated.
Owner:方光芝

Synthesis method of 1-phenyl-5-mercaptotetrazole

The invention relates to a synthesis method of 1-phenyl-5-mercaptotetrazole, which comprises the steps of (1) by using sodium anilino dithiocarboxylate and sodium azide as raw materials, water as a reaction solvent and an alkaline solution as a catalyst, carrying out heating reflux reaction, and neutralizing the reaction solution with an acid after the reaction is ended to obtain a 1-phenyl-5-mercaptotetrazole crude product; and (2) recrystallizing the 1-phenyl-5-mercaptotetrazole crude product obtained in the step (1) by using a recrystallization solution to obtain a 1-phenyl-5-mercaptotetrazole finished product, wherein the recrystallization solution is a mixed solution of toluene and water. The 1-phenyl-5-mercaptotetrazole prepared by the method is high in purity, safer in reaction process and suitable for industrial production.
Owner:河北凯力昂生物科技有限公司

Multi-round steam injection well high-strength filling sand control technology method

The invention discloses a multi-round steam injection well high-strength filling sand control technology method. The method comprises the following steps: 1, pulling out a borehole production pipe string, and then lowering in a sand flushing pipe string to perform sand flushing operation; 2, pulling out the borehole sand flushing pipe string, and then lowering in a drifting pipe string to carry out the drifting operation; 3, pulling out the borehole drifting pipe string, and then lowering in a sand control pipe string; 4, carrying out the filling operation; 5, carrying out the steam injectionoperation; and 6, lowering in a drill plug pipe string and removing a drillable sand filter pipe of the sand control pipe string. The method integrates a near borehole zone, a screen sleeve annulus and a sand filter pipe, solves the problem of reciprocating movement of gravel during multiple rounds of steam injection, and effectively improves the stability of a sand retaining barrier. After filling sand control, the sand control pipe string is easy to clear, and sufficient wellbore space for is provided for the later production of oil wells, especially a variable casing damaged well.
Owner:CHINA PETROLEUM & CHEM CORP +1

An edible fungus liquid spawn fermentation tank and application thereof

InactiveCN105075659AControl flow into productionMonitoring pollutionHorticultureBiotechnologyFilter system
The invention provides an edible fungus liquid spawn fermentation tank and application thereof. The edible fungus liquid spawn fermentation tank comprises a ventilation filter system, a main tank, an auxiliary tank and a sampling pipe. The edible fungus liquid spawn fermentation tank can be used for detecting whether edible fungus liquid spawns are contaminated in the cultivation process any time; the result indication can be judged directly, and the problem that contaminated spawns enter production because of manual misjudgment of observers is solved.
Owner:上海光明森源生物科技有限公司

Auxiliary coiling device for thick metal strip

ActiveCN113020317AIncrease frictionMaximum rolling thicknessMetal stripsEngineering
The invention discloses an auxiliary coiling device for a thick metal strip. A wrapping and clamping belt is wound on a sleeve, the head end of the wrapping and clamping belt is connected with the sleeve, and the rest part of the wrapping and clamping belt is used for wrapping and clamping the strip head of the metal strip, so that the strip head of the metal strip generates friction force to drive the metal strip to be coiled. The auxiliary coiling device is arranged at one side of the sleeve and comprises a swing arm frame with one hinged end, and the free end of the swing arm frame is connected with a first clamping roller; at least one hinged frame is hinged to the swing arm frame, the free end of the hinged frame is connected with a second clamping roller, and the hinged frame is connected with the swing arm frame through a tension spring; the first clamping roller and the second clamping roller abut against each other and are used for winding the rest part of the wrapping and clamping belt. According to the auxiliary coiling device, the friction force generated on the metal strip is large, the coiling thickness is large, the device is especially suitable for coiling thicker or higher-rigidity strips, and the pain point in the industry is solved; and in addition, the problem of a strip head impression is solved, and great loss to strip production caused by cutting off the impressions at two ends of the metal strip is avoided.
Owner:SHANGHAI WUXING COPPER CO LTD +1

A guide rail support for an electric power maintenance robot

The invention discloses a guide rail support of an electric power maintenance robot, which comprises a mobile support and a displacement adjustment device arranged on the top of the mobile support. The displacement adjustment device is used for installing a maintenance mechanical arm and for adjusting The position is adjusted. The displacement adjustment device includes an orbital ring and a driving device installed on both sides of the mobile support. The orbital ring is driven by a first servo motor and rotates on the top of the mobile support. The orbital ring It includes a fixed section and a support section that is rotatably connected with the fixed section. When in use, the position of the mounting support can be controlled by controlling the cooperation of the screw and the track ring, and the track ring can be stored in the mobile when not in use. The two sides of the support further ensure that the mechanical arm can move freely in a large space, and at the same time avoid the problem that its large volume makes it difficult to pass through mountains or narrow roads in the wild.
Owner:GUANGDONG POWER GRID CO LTD DONGGUAN POWER SUPPLY BUREAU +1

Multi-layer flat tube bag rapid dehydration system and dehydration method for mud treatment

ActiveCN112592009BLarge water sectionAccelerate dehydration and consolidationSludge treatmentCement slurryMechanical engineering
The invention relates to a multi-layer flat pipe bag rapid dehydration system and dehydration method for mud treatment. The dehydration system includes a drainage platform, and the drainage platform is arranged with a slope; a water collection tank is arranged around the drainage platform. The sump is set at the lower edge of the slope of the drainage platform, and the water on the drainage platform is drained to the sump through the slope; several layers of pipe bags are stacked on the drainage platform, and the pipe bags are filled with water-containing For mud, an interlayer water-conducting layer is arranged between each layer of pipe bags, and a filling port for filling mud into the pipe bags is arranged on the pipe bags; a bottom is provided between the drainage platform and the bottom pipe bag Water guide layer; a water bag is arranged above the top layer tube bag, and the water bag is filled with water. The dewatering system adopts the combination of multi-layer flat tube bag stacking, water bag ballasting and increasing the drainage boundary of the tube bag to achieve rapid dehydration and consolidation of mud.
Owner:HOHAI UNIV

A longitudinal island detection device

The invention discloses a vertical island detection device, which includes a current control terminal, a grid-connected inverter, a voltage detection module, a data analysis unit, a passive detection module, a channel selection unit, a monitoring unit, a processor, a display unit, a storage unit, an alarm unit and a management unit; the present invention can switch the passive detection module at any time through the detection unit and the channel selection unit and use the data analysis unit to analyze whether the islanding effect occurs, avoiding the singleness of the traditional detection method. It is a relatively difficult problem; after obtaining the quantitative data corresponding to the island effect, and releasing the analysis of the quantitative data by the processor, it is possible to obtain the overall quality of the power supply network of the piece and whether the island effect of a single location is frequent, and aim at Frequent locations remind staff to pay attention to investigation.
Owner:杭州继保电力设备有限公司

Energy-saving and environment-friendly aggregate centralized feeding system

The invention provides an energy-saving and environment-friendly aggregate centralized feeding system. The energy-saving and environment-friendly aggregate centralized feeding system comprises a discharging mechanism, a conveying mechanism, an aggregate collecting mechanism and an aggregate metering mechanism; the discharging mechanism comprises a discharging hopper, a dust removal device and a water storage tank; a top opening of the discharging hopper is in sealed connection with the dust removal device; a dust removal cloth bag is arranged in the dust removal device; an opening with a rubber strip curtain mounted at the top is formed in one side of the dust removal device for feeding; the conveying mechanism comprises a dust cover and a conveying part; the conveying part comprises a conveying track and a trolley; a dust scraping device is further arranged on the inner wall of the conveying part; the aggregate collecting mechanism comprises a dustproof bin, at least three stock bins arranged in the dustproof bin and a distributing device; and the stock bins are distributed below the distributing device in a surrounding mode and can rotate. According to the system, by means of the discharging mechanism, the conveying mechanism, the aggregate collecting mechanism and the aggregate metering mechanism, automatic control over the aggregate feeding process is achieved. The problems that in the feeding process, flying dust is large; noise is large; energy consumption is high; and clean production cannot be achieved are solved.
Owner:GUANGXI DADU CONCRETE GROUP

Grids and method of manufacture

A method for manufacturing a gate, comprising: providing a semiconductor substrate; forming a first dielectric layer on the semiconductor substrate; forming at least a second dielectric layer on the first dielectric layer; Forming a groove in the second dielectric layer, the bottom of the groove exposes the substrate surface; removing the second dielectric layer; forming a conductive layer in the groove of the first dielectric layer and on the first dielectric layer layer; spin-coat a photoresist layer on the conductive layer and pattern it to form a gate pattern, and the gate pattern is located above the groove of the first dielectric layer; The conductive layer and the first dielectric layer covered by the pole pattern. This method can more accurately control the line width of the bottom of the formed gate.
Owner:SEMICON MFG INT (SHANGHAI) CORP +1

A petrol drill for glacier drilling

The invention relates to a gasoline drill for glacier drilling. The gasoline drill for glacier drilling is characterized in that a gasoline engine is connected with a variable speed gear, an annular handle is connected with a connecting board, the gasoline engine is fixedly connected with the variable speed gear through the connecting board, a variable speed controller is arranged on the annular handle and connected with the variable speed gear, a gasoline tank is located at the lower portion of the gasoline engine and is connected with the gasoline engine, the gasoline engine is provided with a cord switch, one end of a drill rod penetrates through the connecting board, a pin is plugged into a pin hole in the connection position of the drill rod and the variable speed gear for fastening at the joining position of the drill rod and the variable speed gear, the other end of the drill rod passes through a drill rod bayonet hole, a pin is plugged for fixing when a pin hole in the position, connected with a drill bit, of the drill rod and a pin hole in the position, connected with the drill rod, of the drill bit coincide, and a biconical blade is welded to the embedment port of the drill bit. The gasoline drill for glacier drilling is light and convenient to assemble and disassemble, gasoline serves as a power source of the drill, energy reduction of drills at the cold highland area is avoided, manpower and material resources are saved, and the gasoline drill for glacier drilling is suitable for ice and snow drilling of high cold and high altitude areas.
Owner:NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS

Respirator and working method thereof

PendingCN111760141AShortness of breath feelingReduce labor intensityRespiratorsMedical devicesOxygen tankRespirator
The invention discloses a respirator. The respirator comprises a machine shell, wherein an oxygen generating device, an oxygen filtering device and an oxygen humidifying device are arranged in the machine shell; the oxygen generating device comprises an air compressor and an oxygen generating tank; an air outlet and an air inlet are formed in the upper end and the lower end of the oxygen generating tank respectively; an exchange membrane is arranged in the oxygen generating tank; the exchange membrane divides the oxygen generation tank into an upper cavity and a lower cavity; a safety valve isarranged on the side wall of the oxygen generating tank and communicates with the lower cavity; and the air compressor is fixedly arranged at the bottom of the machine shell, and the outlet end of the air compressor is connected with the air inlet through a pipeline. The beneficial effects have the advantages that the structure is compact, suffocation feeling is avoided, oxygen can be moistened,oxygen can be generated automatically, and an oxygen bottle does not need to be replaced.
Owner:耿超玮

Supported desulfurization catalyst and preparation method thereof

The embodiment of the invention provides a supported desulfurization catalyst and a preparation method of the supported desulfurization catalyst. The supported desulfurization catalyst comprises, for example, a porous alumina carrier and aminocarboxylic acid complex iron ions supported on the surface of the porous alumina carrier. The specific surface area of the porous alumina carrier is 50-500 square meters per gram, the average pore volume of the porous alumina carrier is 0.05-0.8 cubic centimeters per gram, and the average pore size of the porous alumina carrier is 0.5-50 nanometers. The supported desulfurization catalyst provided by the embodiment of the invention is suitable for desulfurization of to-be-desulfurized gas containing hydrogen sulfide and oxygen, can oxidize hydrogen sulfide into elemental sulfur, has higher desulfurization performance, and is suitable for a desulfurization environment with higher reaction temperature and higher oxygen concentration.
Owner:德微科技有限公司

A kind of synthetic method of 1-(2-dimethylaminoethyl)-1h-5-mercapto-tetrazolium

The present invention relates to a synthetic method of 1‑(2‑dimethylaminoethyl)‑1H‑5‑mercapto‑tetrazolium, comprising the following steps: (1) using N,N‑dimethylethylenediamine Sodium dithiocarboxylate and sodium azide are raw materials, water is used as a reaction solvent, and an alkali solution is used as a catalyst. After heating and reflux, after the reaction is completed, the reaction solution is neutralized by an acid to obtain 1‑(2‑dimethyl (2) 1-(2-dimethylaminoethyl)-1H-5-mercapto-tetrazolium crude product obtained in step (1) The crude product is recrystallized through a recrystallization solution to obtain a finished product of 1-(2-dimethylaminoethyl)-1H-5-mercapto-tetrazolium, and the recrystallization solution is a mixed solution of toluene and water. The product prepared by the invention has high purity, high yield, safer reaction process, and is a more green and environment-friendly synthesis process.
Owner:河北凯力昂生物科技有限公司

An intelligent detection and cleaning robot for storage tanks

The invention relates to the technical field of industrial robots, and relates to an intelligent automatic detection robot, in particular to an intelligent storage tank detection and cleaning robot, which includes a body that adopts permanent magnet adsorption and is provided with a crawler walking mechanism; the body is provided with a flushing mechanism and The camera mechanism can wash the dirt on the inner and outer walls of the storage tank, and the image data of the washing area can be transmitted in real time through the camera mechanism, and the image processing module of the control terminal can intelligently identify whether the washing is completed and whether the area needs washing; the present invention The walking mechanism adopts the design of two sets of four parallel crawlers, and an adjustable liquid-pneumatic suspension mechanism is set on the inner crawler, so that the crawler can better fit the curvature of the wall and increase the stability and safety during walking. The stable transmission of image information provides conditions for intelligent analysis and recognition; the invention also sets waste liquid recovery and drying mechanisms, which can further keep the storage tank clean.
Owner:梧州科润润滑科技有限公司

Interventional contrast imaging device and method

PendingCN113274228AAvoid the inconvenience of handlingAvoid difficult problemsOperating tablesStretcherEngineeringWorkbench
The invention provides an interventional contrast imaging device and method, which are used for solving the problems that a patient is inconvenient to transport and the patient needs to change a bed body back and forth for examinations of different positions during a current contrast examination. The interventional contrast imaging device comprises a workbench; one end of the workbench is provided with a contrast imaging device; the workbench comprises a supporting plate; a working plate is arranged on the supporting plate in a sliding manner; first supporting rods are arranged on the periphery of the bottom face of the supporting plate; the lower end of each first supporting rod is fixed to a hydraulic cylinder; the contrast imaging device comprises a bent rod; one end of the bent rod is connected with a base with a first self-locking wheel, and the other end of the bent rod is rotationally provided with a contrast imaging main body; the contrast imaging main body extends to a position above the working plate; and a working face of the contrast imaging main body is provided with detachable covering cloth. The interventional contrast imaging device is reasonable in design and convenient to install; the sliding working plate is arranged, and a patient can be placed on the working plate and slide to the workbench, so that the problem that the patient is inconvenient to carry is solved, and precious time is won for treatment.
Owner:XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV
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