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283results about How to "Mature processing technology" patented technology

Cooking utensil

The invention provides a cooking utensil. The cooking utensil comprises an outer pot, a temperature controller, an elastic part and a heating disc. Guide holes are formed in the outer pot, the temperature controller is put in the outer pot, supporting legs are arranged at the bottom of a shell of the temperature controller, and the supporting legs penetrate through the guide holes. The elastic part is arranged between the shell and the outer pot, and the upper end and the lower end of the elastic part abut against the shell and the inner bottom wall of the outer pot respectively. The heating disc is arranged in the outer pot and covers the temperature controller, a receding hole is formed in the heating disc, and the top of the temperature controller can protrude out of the receding hole.The supporting legs make contact with the guide holes tangentially, and the sizes of the cross sections of the guide holes are larger than those of the cross sections of the supporting legs. Accordingto the cooking utensil, the supporting legs make contact with the guide holes tangentially, and the sizes of the cross sections of the guide holes are larger than those of the cross sections of the supporting legs, it is effectively avoided that a main temperature controller greatly rubs with an outer pot in the moving process, so that the main temperature controller is jammed, thus, the problemof jamming of the temperature controller is conveniently and effectively solved, and the cooking utensil is simple in structure and beneficial for popularization.
Owner:FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD

Switching-controllable THz wave metamaterial perfect absorber and control method thereof

The invention relates to the field of metamaterial devices and provides a switching-controllable THz wave metamaterial perfect absorber (MPA) and a control method thereof. The switching-controllable THz wave metamaterial perfect absorber comprises a substrate, an MIT (metal-insulator transition) layer positioned on the substrate, a dielectric layer positioned on the MIT phase change layer and metal opening resonance units positioned on the dielectric layer and being in cyclic arrangement, and the on/off of the absorber at the resonance frequencies of the metal opening resonance units is realized through changing the conductivity of the MIT phase change layer. According to the invention, the variation of the conductivities of the MIT phase-change material before and after phase change is utilized to change the absorptivity of the absorber, so that the THz MPA can be turned on/off near the resonance frequency of the metal opening resonance units, initiative control of the electromagnetic transfer characteristics of THz wave bands at the specific frequency, and accordingly, a larger on-off ratio or modulation depth can be obtained; and the switching-controllable MPA adopting the substrate-vanadium dioxide-dielectric layer-SRRs (Split Ring Resonators) four-layer structure can control the conductivity of vanadium dioxide through an external field so as to control the absorptivity of the MPA.
Owner:HUAZHONG UNIV OF SCI & TECH

MEMS gas sensor and manufacturing method thereof

The invention relates to the technical field of gas detection, and in particular relates to an MEMS gas sensor. The MEMS gas sensor comprises a monocrystalline silicon substrate, a porous silicon layer which is formed on the upper surface of the monocrystalline silicon substrate and has thickness downwards, a heat insulation trough formed on the lower surface of the monocrystalline silicon substrate in an inverse manner, a lower insulation layer, a heating layer, an upper insulation layer and a gas sensitive layer, wherein the bottom surface of the heat insulation trough is positioned just under the porous silicon layer; the heat insulation trough comprises one or multiple trench groups; the lower insulation layer covers the porous silicon layer and the upper surface of the monocrystalline silicon substrate and comprises a first silicon dioxide layer, a second silicon dioxide layer and a silicon nitride layer from bottom to top in sequence; the heating layer, the upper insulation layer and the gas sensitive layer are arranged above the lower insulation layer. The invention also correspondingly discloses a manufacturing method of the MEMS gas sensor. By virtue of the structures of porous silicon and the heat insulation trough, the heat insulation effect is enhanced; the lower insulation layer effectively prevents the heat insulation layer warping to break away from the heating layer at high temperature; meanwhile, under the supporting of the porous silicon layer, deformation and cracks, which are caused by non-uniform stress, of the lower insulation layer are prevented, and thus the service life of the gas sensor is prolonged.
Owner:SUZHOU LEANSTAR ELECTRONICS TECH

Modular spatial curved surface folding and unfolding antenna mechanism based on rib mechanisms

The invention relates to an antenna mechanism, in particular to a modular spatial curved surface folding and unfolding antenna mechanism based on rib mechanisms. The modular spatial curved surface folding and unfolding antenna mechanism aims to solve the problems that an existing unfolding-type parabolic cylinder antenna structure is low in molded surface precision, poor in stability and low in integral rigidity, an umbrella-shaped antenna structure is not suitable for reflecting surface stretch forming, and a truss antenna structure capable of being unfolded only can be unfolded unidirectionally but a parabolic cylinder can not be formed. The modular spatial curved surface folding and unfolding antenna mechanism comprises two speed-controlled motors, two longitudinal connection rib mechanisms, two folding and unfolding connection mechanisms, a plurality of transverse connection rib mechanisms, a plurality of single rib mechanisms, a plurality of single modular folding and unfolding mechanisms, a plurality of tensioning pull ropes and a plurality of modular connection mechanisms. Two transverse outer side supporting frames are arranged between the two longitudinal connection rib mechanisms in parallel and are respectively formed by connecting multiple transverse connection ribs in series, and the two folding and unfolding connection mechanisms, the single modular folding and unfolding mechanisms and the single rib mechanisms are arranged in the supporting frames. The modular spatial curved surface folding and unfolding antenna mechanism is applied to satellites, space stations and space probes.
Owner:HARBIN INST OF TECH

Elastic hinge driving truss type foldable unit and foldable supporting arm

The invention relates to truss type foldable units and foldable supporting arms formed by the same and particularly to an elastic hinge driving truss type foldable unit and a foldable supporting arm. The elastic hinge driving truss type foldable unit and the foldable supporting arm aim at solving the problems that the existing hinged supporting arm is complicated in driving mechanism, large in folding size and low in repeated unfolding accuracy and accordingly the structural weight is greatly increased and the unfolding reliability is low. The elastic hinge driving truss type foldable unit comprises an upper frame, a lower frame, N elastic hinge type folding arms and N groups of drawing cable assemblies; the upper frame and the lower frame are arranged in a parallel mode; N vertexes of the upper frame and N vertexes of the lower frame are arranged in an upper and lower corresponding mode; every two corresponding vertex angles formed between the upper frame and the lower frame are supported through the corresponding elastic hinge type folding arm and can be connected with each other in a rotating mode; every group of drawing cable assembly is arranged at the diagonal position in a rectangular plane which is formed by the upper frame, the lower frame and the two corresponding adjacent elastic hinge type folding arms. The elastic hinge driving truss type foldable unit and the foldable supporting arm are applied to a satellite, a space station and a space probe.
Owner:HARBIN INST OF TECH

Transparent broadband metamaterial absorber

The invention discloses a transparent broadband metamaterial absorber which comprises multiple periodically arranged unit structures. Each of the unit structures comprises an upper layer transparent resonant structure at the center of the unit structure, a middle layer transparent substrate, and a lower layer transparent reflection layer. The upper layer transparent resonant structure is above the middle transparent substrate, and the lower layer transparent reflection layer is under the middle layer transparent substrate. The upper layer transparent resonant structure is a symmetric figure which comprises a ring and a ring with a branch at the periphery of the ring. Both the upper layer transparent resonant structure and the lower layer transparent reflection layer are transparent conductive materials. According to the transparent broadband metamaterial absorber, the reflection rate of incident electromagnetic wave can be effectively attenuated in an X band, the transparent broadband metamaterial absorber is convenient to manufacture, the technology is mature, the light transmittance performance of the overall structure is excellent and a light transmittance rate is larger than or equal to 80% in a visible light range, and the transparent broadband metamaterial absorber has a good prospect in application.
Owner:JIANGSU SAIBO DEFENSE TECH CO LTD

Low-power consumption double module integrated humidity sensitive chip with heating function and its manufacture method

Disclosed is a dual module integrated humidity sensitive chip with heating function and low power consumption as well as a making method thereof, relating to a sensor chip and a making method. The chip and method improve the applicability to environment with fast changing of temperature and humidity of a humidity sensor having the integrated heating function and reduce the power consumption when heating, and the invention provides the dual module integrated humidity sensitive chip with heating function and low power consumption as well as the making method by adopting a mono-crystalline silicon material as a substrate and combining the semiconductor technique and the micro-machining technique. Two humidity sensor modules having the same structure are symmetrically arranged at both sides of a thermal isolation through groove on a symmetric axis of the sensor structured substrate, the bottom parts of the humidity sensor modules are provided with a heating resistor on which a humidity sensitive capacitor is arranged, and the two ends of the heating resistor, and a porous capacitance upper polar plate and a capacitance lower polar plate of the humidity sensitive capacitor are respectively led out by an electrode. The sensor chip of the invention has advantages of good reliability and stability, small volume, low cost and convenient processing in batches, and can be applied to the making of various humidity sensors.
Owner:NO 49 INST CHINESE ELECTRONICS SCI & TECH GRP

Method for treating specific pollutants through high-temperature melting technology

The invention provides a method for treating specific pollutants through a high-temperature melting technology. The specific pollutants comprise electroplating sludge, sludge containing metal and/or incineration disposal residues. The method comprises the steps that pretreatment is carried out, wherein the specific pollutants are pretreated, the water content of the specific pollutants is reduced to be 10 wt% or lower, and dry specific pollutant materials are obtained; burdening, blending and granulating are carried out, wherein regulating components are added as needed, mixed and granulated, and a granulated mixture is obtained; melting is carried out, wherein the granulated mixture is melted at the melting temperature ranging from 1,200 DEG C to 1,800 DEG C; and products are obtained, wherein the melted metal is settled on the lower layer and is discharged to obtain a metal alloy, and slag and a small part of metal float above the melted metal and are discharged to obtain glassy-state slag. After the specific pollutants are treated through the method, harmless and pollution-free resource materials can be obtained, and the method can be used for resource recycling, and is good in economic benefit and beneficial to commercial popularization.
Owner:SHANGHAI LVCHENG ENVIRONMENTAL PROTECTION TECH

Telescopic truss type binary optical space camera and on-orbit work method thereof

The invention provides a telescopic truss type binary optical space camera and an on-orbit work method thereof and belongs to the field of spaceflight space repeatable unfolding. The telescopic truss type binary optical space camera aims to solve the problems that an existing space foldable and spreadable framework type supporting arm is complicated in structure, heavy and difficult to repeatedly fold and unfold. A partitioned type spreadable optical main lens of the telescopic truss type binary optical space camera is installed on a supporting arm through three ball hinges. The supporting arm comprises multiple framework type foldable units. The on-orbit work method comprises the steps that during launching, the supporting arm and the partitioned type spreadable optical main lens are in a folded mode, and the optical camera is in a launch closed mode; after injection, the supporting arm is switched to a unfolding mode and is unfolded; after the supporting arm is unfolded appropriately, the space camera is switched to an on-orbit operation mode, and the partitioned type spreadable optical main lens is unfolded; when the space camera is switched to an on-orbit closed mode, the supporting arm is folded, and the partitioned type spreadable optical main lens is unfolded. The telescopic truss type binary optical space camera is a large-caliber space camera.
Owner:HARBIN INST OF TECH

Underactuation self-adaptive capturing device capable of being folded and unfolded

The invention relates to a capturing device, in particular to an underactuation self-adaptive capturing device capable of being folded and unfolded. The underactuation self-adaptive capturing device capable of being folded and unfolded aims to solve the problems that an existing space robot is high in weight, complex in structure and poor in reliability and is provided with a great number of driving motors. According to the underactuation self-adaptive capturing device capable of being folded and unfolded, a single-finger root joint shaft is arranged on the upper surface of one end of a substrate, a two-finger root shared joint shaft is arranged on the upper surface of the other end of the substrate, a driving assembly is arranged on the lower surface of the substrate, a first transmission shaft is arranged on the lower surface of the substrate through a first bearing block, the single-finger root joint shaft is sleeved with a first synchronous belt wheel, the first transmission shaft is sleeved with a second synchronous belt wheel, the first synchronous belt wheel is connected with the second synchronous belt wheel through a synchronous belt, the middle of the two-finger root shared joint shaft is sleeved with a first gear, and the first gear is connected with the driving assembly. The underactuation self-adaptive capturing device capable of being folded and unfolded is used for the aerospace field.
Owner:HARBIN INST OF TECH

Double-layer annular truss antenna mechanism based on passive drive

The invention provides a double-layer annular truss antenna mechanism based on passive drive and relates to double-layer annular truss type expandable antenna mechanisms. The problems that an existing large-caliber single-ring annular truss antenna is small in rigidity, the use rigidity requirement can not be met, an existing annular truss antenna mechanism is complex in drive structure and large in weight, inhaul cables are prone to be twisted after being used for unfolding the mechanism, and the unfolding reliability is low are solved. The double-layer annular truss antenna mechanism comprises multiple inner and outer truss foldable unit modules, multiple inner transition folding assemblies and multiple outer transition folding assemblies. Each inner and outer truss foldable unit module comprises an inner folding unit module, an outer folding unit module and two inner and outer connection truss assemblies. Inner supporting vertical rods and outer supporting vertical rods which are opposite are connected through the inner and outer connection truss assemblies. After the inner and outer truss foldable unit modules are unfolded, an inner and outer double-layer annular truss polyhedron is formed. The double-layer annular truss antenna mechanism is used for a satellite, a space station and a space probe.
Owner:HARBIN INST OF TECH

Electromagnet driven gyroscope based on nanometer film quantum tunneling effect

The invention relates to a micro-mechanical gyroscope, in particular to an electromagnet driven gyroscope based on a nanometer film quantum tunneling effect, solving the problem of the existing micro-mechanical gyroscope that an applied drive mode, an applied detection mode and the structures corresponding to the drive mode and the detection mode limit the performance of the gyroscope to be further improved. The gyroscope comprises a carrier plate embedded with a permanent magnet and a gyroscope tube core, wherein the gyroscope tube core is internally enveloped with a gyroscope sensitive mechanism which comprises a support frame body, a glass base plate, a composite beam and a mass block; the composite beam is formed by a detection beam and pentacle-shaped drive beams symmetrically positioned at the two sides of the detection beam; the connection place between the detection beam and support frame body is provided with a nanometer film quantum tunneling apparatus; the mass block is provided with a feedback lead wire and a drive lead wire; a connection lead wire at the two ends of the feedback lead wire and the drive lead wire, which is positioned along the composite beam, is connected with a lead wire pad corresponding to the support frame body. The gyroscope has simple, rescannable and compact structure, is suitable for microminiaturization, and greatly improves performance parameters such as sensitivity, and the like, compared with the existing micro gyroscope.
Owner:ZHONGBEI UNIV

High voltage and ultra-high voltage direct current (DC) cross-linked polyethylene insulated sea electric power cable

The invention relates to a high voltage and ultra-high voltage direct current (DC) cross-linked polyethylene insulated sea electric power cable, comprising a waterproof conductor, a conductor shielding layer, an insulating layer, an insulating shielding layer, a semi-conductive waterproof buffer layer, a metal shielding layer, a semi-conductive plastic reinforcing protective layer, filling strips, a cabling strapping tape, a metal armoring layer and an outer coating respectively from inside to outside in sequence. The high voltage and ultra-high voltage DC cross-linked polyethylene insulated sea electric power cable adopts a positive and negative DC transmission wire core integrated cabling structure, and avoids the polarized electric field corrosion effect of the metal armoring layer, and the metal armoring layer of the cable can be manufactured by using a common galvanized mild steel wire. Simultaneously, a dual-core DC high voltage sea electric power cable is more convenient to lay than a single-core DC high voltage sea electric power cable, and occupies less tidal flat laying route resource. The DC high voltage sea electric power cable can adopt a single solid core aluminum conductor, and has low manufacturing cost and better water-tightness.
Owner:宜昌联邦电缆有限公司 +1

Terahertz artificial birefringence device based on periodic chirped grating

The invention discloses a terahertz artificial birefringence device based on a periodic chirped grating. According to the terahertz artificial birefringence device, an artificial birefringence effect is formed through etching a submillimeter-scale relief grating structure on the surface of a high-resistance silicon chip, thereby realizing functions of terahertz wave phase shift and polarization state transition. According to the device, a specific period chirped structure is adopted. Not only is periodicity of the grating kept, but also the chirped structure is introduced. Compared with a common periodic grating, the terahertz artificial birefringence device is advantageous in that the birefringence coefficient and the birefringence bandwidth of the device are improved; a high birefringence coefficient which is larger than 0.35, broadband birefringence flatness and a good linear phase shift characteristic are realized in a terahertz waveband; a highest phase shift coefficient reaches deltaphi=1.6pi; and polarization conversion rate exceeds 99% when the terahertz artificial birefringence device is used as a one-half wave plate. Compared with a metal grating and a metal hypersurface structure, the terahertz artificial birefringence device is made of a full dielectric material and greatly improves transmittance of the device; low loss and broad band are realized; and the terahertz artificial birefringence device can be widely used for regulating terahertz wave phase and polarization.
Owner:NANKAI UNIV

Method for pickling pork head meat

The invention relates to a method for pickling pork head meat. The reasonable-process method for pickling pork head meat, capable of being used for making the pickling pork head meat with the unique flavor does not exist in the prior art. The method provided by the invention comprises the work procedures of raw material meat processing, pickling, rinsing, baking, cooking, packing and sterilization. In the raw material meat processing work procedure, pork heads are used as raw materials, pork tongues and pork faces are taken down, the pork heads are cut into halves, and the pork brain is taken out to obtain the port cranium; in the pickling work procedure, the pork cranium, the port tongues and the pork faces are pre-cooled to the temperature below 10 DEG C, pepper salt is smeared on the pork cranium, the port tongues and the pork faces, the picking is carried out for 28 to 32 days, the jar turning is carried out every day in the early four days, and the jar turning is carried out every three days from the fifth day; the cooking work procedure is carried out after rinsing and baking, the pork cranium is placed into boiling water to be boiled for 42 to 48 minutes to obtain pork cranium meat, the pork noses, the pork tongues and the pork faces are steamed for 18 to 22 minutes by 100-DEG C steam, and the pork ears are steamed for 28 to 32 minutes by 100-DEG C steam; and the finished products of pickled pork head meat are obtained through the work procedures of packing and sterilization. The method has the advantages that the process is reasonable, and the manufactured pork head meat has unique flavor.
Owner:ZHEJIANG QINGLIAN FOOD

Center-adjustable ball spherical hinge joint and center adjusting method of center-adjustable ball spherical hinge joint

The invention discloses a center-adjustable ball spherical hinge joint and a center adjusting method of the center-adjustable ball spherical hinge joint. Due to machining and assembling errors, a spherical hinge joint is in an eccentric state usually. Supporting ball guide holes are formed in a supporting ball socket of the ball spherical hinge joint. A displacement sensor is installed in a sensor installation hole of the supporting ball socket. Restraining ball guide holes are formed in a restraining ball socket. Double-thread center adjusting mechanisms are installed in the supporting ball guide holes and the restraining ball guide holes to adjust ball steel balls. The center adjusting method includes the steps that the center-adjustable ball spherical hinge joint is installed; when the double-thread center adjusting mechanisms are installed, main threaded columns and auxiliary threaded columns rotate in the opposite directions, and the restraining ball steel balls and the supporting ball steel balls are quickly located; and when centering adjustment is conducted by the double-thread center adjusting mechanisms, the main threaded columns and the auxiliary threaded columns rotate in the same direction. The double-thread structures rotate in the opposite directions when the eccentric error is relatively large, and the eccentric error is quickly reduced; and the double-thread structures rotate in the same direction when the eccentric error is relatively small, and the centering condition of the balls and the ball sockets are finely adjusted.
Owner:HANGZHOU DIANZI UNIV

MEMS (micro electro mechanical system) silica-based micro-hotplate provided with thermal insulation channels and processing method of MEMS silica-based micro-hotplate

The invention relates to the field of silica-based micro-hotplates, and discloses an MEMS (micro electro mechanical system) silica-based micro-hotplate provided with thermal insulation channels and a processing method of the MEMS silica-based micro-hotplate. The MEMS silica-based micro-hotplate comprises a monocrystal silicon substrate, the thermal insulation channels, a lower insulation layer, a heating layer and an upper insulation layer, wherein one or more groups of thermal insulation channels with certain depths are formed in the upper surface of the monocrystal silicon substrate, and each group of channels comprises a plurality of parallel straight channels; the thermal insulation channels and the upper surface of the monocrystal silicon substrate are covered with the lower insulation layer; and the heating layer and the upper insulation layer are arranged above the lower insulation layer. According to the micro-hotplate, a film on the lower insulation layer as well as the heating layer and the upper insulation layer above the film on the lower insulation layer can be stably supported by the thermal insulation channels, and the heating layer is prevented from falling off due to the fact that the lower insulation layer deforms and warps during high-temperature work of a device; and meanwhile, the surfaces of the thermal insulation channels are covered with the silicon dioxide film, the silicon dioxide film can have a better thermal insulation effect, the detection sensitivity of the micro-hotplate is increased, and the service life is prolonged.
Owner:SUZHOU LEANSTAR ELECTRONICS TECH
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