3781results about How to "Cause damage" patented technology

The invention provides a battery heating control system for vehicles and a control method thereof. The battery heating control system comprises a heating control module and a battery heating unit; the heating control module is electrically connected with the battery heating unit; the battery heating unit is used for heating a battery; the heating control module is used for starting the heating ofthe battery by the battery heating unit when the condition of heating starting is met and stopping the heating of the battery by the battery heating unit when the condition of heating stop is met, wherein the starting of the battery heating unit meets the following conditions simultaneously that: the ambient temperature K ambient of the system reaches a temperature set value K1; the battery temperature K battery reaches a temperature set value K2; and the battery state of charge (SOC) reaches a set value SOC1 of the battery SOC. The battery heating control system for the vehicles and the control method can better protect the battery.

The invention discloses a regeneration fluid for an SCR denitration catalyst, which comprises the following components: 0.001 to 1 weight percent of penetration enhancer JFC, 0.001 to 1 weight percent of surfactant OP-10, 0 to 1 weight percent of peregal, 0.6 to 4 weight percent of ammonium metavanadate, 5.5 to 12.5 weight percent of ammonium paratungstate, 0 to 6.5 weight percent of ammonium paramolybdate, and the balance of deionized water and acid. The regeneration fluid has the advantages that the regeneration fluid can also supplement active ingredients during the washing, and the activity recovery of the catalyst after the regeneration is up to between 90 and 105 percent; a nonionic surfactant is added into the regeneration fluid, so that the regeneration fluid improves the cleaning capability on the catalyst and cannot cause the damage to a catalyst carrier and other effective ingredients; and the regenerated catalyst fully can continue to be normally used, and the service life can reach more than 95 percent of that of a new catalyst.

Embodiments in the invention provide an unlocking method for an electronic door lock, an electronic door lock and an electronic door lock system, relating to the field of electronic communication. The invention enables workers to open a lock in time and unnecessary unlocking cost to be avoided under the condition that security is guaranteed. The unlocking method comprises the following steps: sending key acquiring request information to a key management central server; receiving unlocking secret key sent by the key management central server and matching with the current door lock secret key of an electronic door lock; sending the unlocking secret key sent to the electronic door lock, wherein, when the current door lock secret key successfully matches with the unlocking secret key, the electronic door lock is opened. The embodiments in the invention are applicable to electronic locks.

The invention discloses an electric pressure cooker comprising a cooker cover and a cooker body. The cooker cover can move between an opening position and a close position corresponding to the cooker body; the electric pressure cooker further comprises a steam buffering device, a steam recovery device and a conduit; the steam buffering device can detachably installed on the cooker cover and communicated with the cooker body; the steam buffering device can be communicated with the steam recovery device via the conduit, so steam entering the steam buffering device via the inner part of the cooker body can be introduced to the steam recovery device. Less steam can be discharged; and noise produced during steam discharging can be reduced and damage to environment and human bodies by the exhausted steam can be reduced.

The invention discloses a fire-retardant polyolefin based wood plastic composite material and a preparation method thereof, and relates to a wood plastic composite material and a preparation method thereof, and the composite material and method provided by the invention can be used for solving problems that the existing fire-retardant wood plastic composite material has high heat release efficiency in burning and high smoke production, and can generate CO harmful gas easily. The flame-retardant polyolefin based wood plastic composite material is prepared from wood fiber materials, plastics, acoupling agent, a lubricant, an antioxidant, a nano inorganic fire retardant and a mineral filler. The method comprises the following steps: putting the wood fiber materials, the coupling agent and the lubricant into a high-speed mixing machine for hot mixing; then putting into a cold mixing machine for cold mixing, sending the plastics, the antioxidant, the nano inorganic fire retardant and the mineral filler into the cold mixing machine and then mixing; and then carrying out fusing and extruding for granulation by adopting extruding, injection, hot compressing or mold compression for molding, thus the fire-retardant polyolefin based wood plastic composite material is obtained. The wood plastic composite material provided by the invention has low heat release rate in burning and less smoke production, and is healthy and environmentally-friendly, and can be widely applied to the fields of indoor construction, decoration and furnishing materials and the like.

The invention relates to a medlar picker, in particular to a medlar picker for picking up medlar from medlar trees. The medlar picker comprises a shell, wherein a handle and a power plug are sequentially arranged on one end of the shell; a slide block, a vibration fork clamping plate and a vibration fork are sequentially arranged on the other end of the shell; a guide rail is arranged in the shell; the slide block is arranged in the guide rail; the slide block is connected with a roller wheel arranged in the shell; the eccentric wheel is connected with a motor; and the motor is fixed in the handle through a fixed block and a plug. The invention can ensure that the picker has the advantages of unique structure, light weight, simple operation and high picking efficiency.

The invention provides a serum-free cell culture fluid suitable for enriching and culturing tumour stem cells. DMEM/f12 serves as the basic culture fluid of the serum-free cell culture fluid and transferrin, insulin and other substances are also added as the components of the serum-free cell culture fluid. The serum-free cell culture fluid provided by the invention can efficiently enrich tumour stem cells from malignant tumour cell strains and tumour tissues. In addition, the serum-free cell culture fluid can promote stable growth of the tumour stem cells and maintain fine cell activity and physiological properties of the tumour stem cells, thus being very suitable for research fields related to tumour cells and tumour stem cells.

The present invention discloses a chemical material. The formaldehyde catching agent is prepared with tea as main material and ethanol as solvent. Through soaking, filtering, extraction, distilling, drying and other steps, tea polyphenol is prepared and is further compounded into solution as the formaldehyde catching agent. The formaldehyde catching agent is added into paint or adhesive or sprayed to surface of furniture or ambient air to lower the formaldehyde content. It has no harm to human body.

The invention discloses an environment-friendly printing device. The device comprises a printing body and guide roller sets arranged at the feeding end and the discharging end of the printing body respectively and used for guiding paper, wherein printing rollers used for printing on the surface of paper are arranged at the feeding end of the printing body, ultraviolet drying lamps used for drying ink marks on the surface of printed paper are arranged in the printing body and on the right side of the printing rollers, clearing brushes used for clearing ash on the surface of paper and located between the left guide roller set and the printing rollers are further arranged in the printing body, and a dust absorbing assembly used for preventing waste gas produced during printing from overflowing is further arranged on the printing body. The environment-friendly printing device is improved to overcome defects of existing devices; the dust removal manner is optimized and dust is removed in a dust transfer manner, so paper cannot be damaged with increase of filtering time and flow of air in the printing body can also be facilitated, which contributes to drying of ink marks.

The invention discloses a method for replicating a metal relic with high fidelity, and the method comprises the following steps: (1) an original metal relic is scanned directly by utilizing a laser scanner and a three-dimensional (3D) model of the original metal relic is acquired by reverse engineering; (2) the real process of real investment shell casting is simulated by adopting a finite element method, and the 3D model is modified according to the simulation result (such as contraction); (3) according to the modified 3D model, an accurate wax model is produced by adopting a quick prototyping method; and (4) a shell is produced by utilizing the wax model and liquid metal is poured according to the best simulation technological parameters, thus obtaining the replication with high fidelity. In the method, the accurate wax model can be produced without touching the original relic, and therefore, the relic cannot be damaged; and the method also introduces reverse engineering, quick prototyping and casting process simulation technology into the replication of the metal relic, and compared with the traditional method, the produced metal relic replication has high fidelity and can achieve the effect of representing the relic verve.

Disclosed is a spin hall effect-based magnetic random access memory. The magnetic random access memory is characterized in that a non-magnetic heavy metal layer, an MTJ unit and a side electrode are all cuboid columnar and are perpendicular to a circular crystal substrate surface; an upper electrode, a bottom electrode and an insulation layer are parallel to the circular crystal substrate surface;meanwhile, the free layer of the MTJ unit is in direct contact with the non-magnetic heavy metal layer; the MTJ unit and the side electrode are isolated from the upper electrode and the bottom electrode through the insulation layer; and the non-magnetic heavy metal layer is in direct contact with the upper electrode and the bottom electrode. A spin hall effect-based SOT-MARM storage unit is characterized in that when a current flows through the non-magnetic heavy metal layer, a spin current is generated based on the spin hall effect; the spin current flows through the free layer to be acted on a free layer magnetic torque in a torque form to be subjected to turnover so as to complete information writing in; and in addition, when the current flows through the MTJ unit and flows to the sideelectrode through the bottom electrode, information reading in the storage unit is completed.

The invention discloses a microwave-assisted subcritical essential oil extracting method. The microwave-assisted subcritical essential oil extracting method includes the steps that fresh plant tissues are frozen and then are smashed; 1,1,1,2-tetrafluoroethane is used as an extraction solvent and is led into the smashed plant tissues to perform microwave extraction; during microwave extraction, the extraction temperature is controlled to be 8-12 DEG C, the extraction pressure is controlled to be 0.8-6 Mpa, the microwave frequency is controlled to be 300-2400 MHZ, and the power is controlled to be 200-1200w; after a liquid phase in the system is separated out and microwave extraction is completed, the 1,1,1,2-tetrafluoroethane is recovered from the liquid phase, and the rest of the liquid phase is an essential oil stock solution; the essential oil stock solution is subjected to molecular distillation to obtain essential oil. By the adoption of the microwave-assisted subcritical essential oil extracting method, the essential oil free of any residual solvent can be obtained at lower temperature, the effective ingredients of the essential oil are not destroyed, and the natural quality of the essential oil can be kept to the most degree.

The invention discloses a high-sensitivity local defect diagnosis method for a power cable. According to the method, on the basis of a power cable reflection coefficient spectrum of a frequency domain, a reflection coefficient spectrum of a power cable is measured and analyzed by using a non-destructive test technology; positioning of a local defect of a power cable is realized by combining a strobing gate and a modern digital signal processing technology; and a wave velocity obtained by a rear part or a virtual part of the reflection coefficient spectrum after conversion, of the measured cable is compared with a wave velocity of a new cable and the difference between the reflection coefficient spectrum value after conversion and a corresponding simulated fitting curve are combined, thereby realizing evaluation on the severity degree of the local defect. Compared with the prior art, positioning of a local defect with a weak changing degree and multi-defect identification are realized; and the severity degree of the local defect of the power cable can be evaluated.

The invention discloses a pneumatic soft pole-climbing robot. The pneumatic soft pole-climbing robot comprises a soft robot body, an electromagnetic clamping device, a driving control system and remote control equipment. The soft robot body is in an annular shape with an opening; and the section of the soft robot body is circular. A central accommodating cavity and a plurality of sealed air cavities are formed in the soft robot body. Three material layers with gradually increased rigidity are arranged on the soft robot body; and the three material layers are a deformation layer, a middle layer and a restriction layer. The electromagnetic clamping device comprises an electromagnet A and an electromagnet B which are arranged on two open end surfaces. The driving control system is arranged in the central accommodating cavity; and the driving control system comprises an inflation control valve, an air pump, a micro controller and a portable power supply. The portable power supply is used for supplying power to the electromagnet A and the electromagnet B; and the remote control equipment is in wireless connection with the micro controller. As the pneumatic soft pole-climbing robot is built by using a soft material, the pneumatic soft pole-climbing robot has very high adaptive capacity of the robot to environment, can be applied to climbing within or outside pole-shaped tubes, and can climb pipes which are bent to a certain extent.

The invention provides a device for measuring the volume of an irregular object in a non-contact mode and a measurement method. The device is provided with a first camera, a second camera, a line laser arranged between the first camera and the second camera and a driving mechanism, wherein the first camera and the second camera are electrically connected with a computer, the driving mechanism comprises a stepping motor, an objective table fixedly arranged at the top end of an output shaft of the stepping motor, and a driving unit, and the driving unit is composed of a driver matched with the stepping motor and a control chip for controlling the driver to work. The measurement method includes the steps that an image is acquired, a point cloud model is built, and the volume is calculated. The volume of the irregular object, such as an object like a wooden product, a paper product and a ceramic cultural relic made of special materials, can be measured in the non-contact mode, and no damage is caused to the detected object. Operation is easy, speed is high, and accuracy is high.

The invention belongs to the field of an upper limb exoskeleton rehabilitation robot, and discloses a flexible exoskeleton glove system for hand rehabilitation training. The flexible exoskeleton glove system comprises a finger data collecting glove, a decision driving module and a flexible exoskeleton glove; the finger data collecting glove comprises a first glove main body, a flexible sensor and a wireless sending module; the decision driving module comprises a decision module and a driving module; the decision module comprises a microcontroller and a wireless receiving module connected with the microcontroller; the driving module comprises a module supporting bracket, an air pump and an electrical proportional valve installed on the module supporting bracket commonly; the flexible exoskeleton glove comprises a second glove main body and a flexible bending driver; the flexible bending driver comprises a Kevlar fiber wire, a silicone tube, a glass fiber cloth and a pneumatic sealing joint. In the invention, fingers can be independently moved or coordinately moved, thus the hand rehabilitation training effect and wearing comfort of patients are improved.

The invention provides a turbotype electrical respirator comprising an air inlet (1), a turbine (2), an oxygen inlet (17), an air-oxygen mixing chamber (8) and a suction end (12), wherein the turbine (2) sucks the air entering from the air inlet (1); the air-oxygen mixing chamber (8) is used for mixing the air sucked by the turbine (2) and the oxygen supplied by the oxygen inlet (17); the suction end (12) is communicated with the air-oxygen mixing chamber (8) so as to convey the mixed gas to a terminal (18). The electrical respirator is characterized in that the oxygen inlet (17) is directly communicated with the air-oxygen mixing chamber (8). According to the invention, the turbine is not damaged by the electrical respirator and the mixed gas with high oxygen concentration can be acquired at a patient end, the flow rate of air and oxygen can be controlled by using a simple method and the precise oxygen concentration of the mixed gas which is input to the terminal, i.e. the patient end, can be ensured.

The invention relates to the technical field of laser equipment, in particular to a fiber laser cleaning machine. The fiber laser cleaning machine comprises a laser system, a laser transmission system, a light beam adjusting system, a dust collecting system, a monitoring system, a control system and a mobile platform. The light beam adjusting system, the dust collecting system and the monitoring system are arranged on the mobile platform. The laser system is connected with the laser transmission system; and the light beam adjusting system is arranged at the front end of the laser transmission system. An air port of the dust collecting system is formed in the front side of a workpiece. The monitoring system is connected with the control system; and the control system is connected with the light beam adjusting system, the dust collecting system and the mobile platform. The fiber laser cleaning machine, provided by the invention, has the advantages of good cleaning effect, high efficiency and high automation degree. The fiber laser cleaning machine, provided by the invention, cannot damage the workpiece. In addition, the fiber laser cleaning machine, provided by the invention, is further provided with the dust collecting system, so that impurities generated in the cleaning can be timely absorbed to prevent the cleaned workpiece from generating secondary pollution.

The invention discloses a factory biologic degumming process of kenaf bast. The process comprises the following steps: firstly, rolling kenaf bast till the kenaf bast loosens without damaging kenaf fiber, and carrying out activation and augmentation treatment of Erwinia carotovora microbial agent to obtain bacterial suspension; diluting the bacterial suspension and then carrying out immersion vaccination or spraying vaccination of the kenaf bast; carrying out immersion fermentation or wet fermentation of the kenaf bast till the kenaf bast turns blue and transversely torn kenaf pieces are in a network structure; inactivating the fermented kenaf bast by hot water; and then, cleaning the kenaf bast by high-pressure water while rolling the kenaf bast till kenaf fiber is obtained. The degumming process has the advantages of short degumming cycle, low production cost, less investment, less land occupation, low labor intensity, environmental protection, no pollution, stable product quality, and the like.

The invention relates to a method for repairing oxidized graphene by an organic matter containing an amino group at low temperature, which is characterized by comprising the following steps of: reducing the oxidized graphene with defects by an organic matter containing an amino group; filtering all matters after reduction and removing an excessive reducing matter without any matter retained on the graphene; and finally drying. The invention has simple, convenient and easily-applied operation, low reaction temperature and non-toxic reaction system. The reaction can be carried out in a solid phase and a liquid phase, and the operating process can not introduce a new matter or group and cause damage in other ways to the graphene. The graphene repaired by the method greatly has greatly reduced carbonyl content and the conducting performance improved by more than six magnitude orders. Furthermore, the method can be also used for repairing a graphene conducting thin film so that the graphene conducting thin film is changed into a conductor from an insulator. The invention has general applicable significance for fully exerting various specific physical and chemical performance of the graphene.