926results about How to "Avoid mechanical damage" patented technology

A design and a fabrication method for an intravascular imaging and therapeutic catheters for combined ultrasound, photoacoustic, and elasticity imaging and for optical and / or acoustic therapy of hollow organs and diseased blood vessels and tissues are disclosed in the present invention. The invention comprises both a device—optical fiber-based intravascular catheter designs for combined IVUS / IVPA, and elasticity imaging and for acoustic and / or optical therapy—and a method of combined ultrasound, photoacoustic, and elasticity imaging and optical and / or acoustic therapy. The designs of the catheters are based on single-element catheter-based ultrasound transducers or on ultrasound array-based units coupled with optical fiber, fiber bundles or a combination thereof with specially designed light delivery systems. One approach uses the side fire fiber, similar to the one utilized for biomedical optical spectroscopy. The second catheter design uses the micro-optics in the manner of a probe for optical coherent tomography.

A process for producing a color electro-optic display uses an electro-optic sub-assembly comprising an electro-optic layer and a light-transmissive electrically-conductive layer. This sub-assembly is laminated to a backplane comprising a plurality of electrodes with the electro-optic layer disposed between the backplane and the electrically-conductive layer. A flowable material is placed over the sub-assembly and a color filter array is placed over the electrically-conductive layer and aligned with the electrodes of the backplane to form the color electro-optic display.

The invention provides an embedded multilayer chip capacitor, and a printed circuit board having the same. The embedded multilayer chip capacitor comprises a capacitor body having a plurality of dielectric layers stacked one on another; a plurality of first and second internal electrodes formed inside the capacitor body, separated by the dielectric layers; and first and second vias extended vertically inside the capacitor body. The first via is connected to the first internal electrodes and the second via is connected to the second internal electrodes. The first via is led to a bottom of the capacitor body and the second via is led to a top of the capacitor body.

The invention relates to a medical six-degree-of-freedom automatic adjusting manipulator grinding and clamping device for surgical operation, which is high in control precision and can realize skull surgical operation at any pose and avoid the mechanical injury to brain tissues. The medical six-degree-of-freedom automatic adjusting manipulator grinding and clamping device comprises a base; a revolving table is installed on the base through a motor I and is connected with a hydraulic rod I through a motor II; the hydraulic rod I is connected with a hydraulic rod II; the front end of the hydraulic rod II is connected with a hollow shaft through a motor VIII; a motor III is installed at the tail end of the hollow shaft, and a main shaft of the motor III passes through the hollow shaft and is connected with a revolving shaft; the revolving shaft is connected with a T-shaped connecting rod through a motor IV; the T-shaped connecting rod is connected with a connecting rod II; the connecting rod II is connected with a connecting rod I; a hydraulic device is arranged at the end part of the connecting rod I, and a strain foil is arranged at the bottom of the connecting rod I and is connected with the hydraulic device through a feedback adjusting device; a transverse and longitudinal movement device is arranged at the front end of the connecting rod I; a clamping device is installed on the longitudinal movement device and consists of a catching device I and a catching device II, and a motor V for driving is arranged between the catching device I and the catching device II.

Disclosed is a third stage separator which includes two main clean gas outlets. One main clean gas outlet communicates with a power recovery unit such as an expander turbine while the second main clean gas outlet communicates with a conduit that bypasses the expander turbine. The present invention avoids use of the extra equipment, engineering and installation labor required to prevent the bypass conduit from placing a force load on the line to the power recovery unit.

The invention discloses a kiwifruit tree planting method. Connected greenhouses are used for cultivation, greenhouse films and arrangement of the greenhouses are adjusted along with change of seasons, the four-prevention measures including anti-freezing measures taken in winter and spring, rain sheltering and disease preventing measures taken in the rainy season, and cooling and sun blocking measures and windproof measures taken in midsummer are adopted, matched labor-saving tree cultivating management is performed, the capacity for coping with extreme weather in rainy and high-temperature areas in the south is effectively improved, and the high temperature and high humidity disease problem and the like which are difficult to solve in open field cultivation and traditional facility cultivation are solved. Due to the adoption of the method, the kiwifruit disease transmission route can be effectively cut off, input cost is low, manpower is saved, the survival rate of kiwifruit trees reaches 95.2%, the average single weight of red kiwifruits can reach 86 g under the situation that no swelling agents are applied, and the largest single fruit weight reaches 103.5 g; the soluble solid reaches 17.4% to 19.1%; the fruit cleanness is obviously improved, use of swelling agents and high-poison and mediate-poison pesticide is effectively eradicated, and quality safety of the fruits is guaranteed.

The invention provides a surgical robot system. The surgical robot system comprises image fusion processing equipment, static imaging equipment, dynamic imaging equipment, mechanical arm equipment andvisual imaging equipment, wherein the static imaging equipment is used for transmitting 3D image information to the image fusion processing equipment; the visual imaging equipment is used for transmitting visual space information to the image fusion processing equipment; the image fusion processing equipment is used for fusing and extracting the information; the dynamic imaging equipment is usedfor transmitting dynamic information to the image fusion processing equipment, and the image fusion processing equipment is used for fusing the dynamic information to the 3D image information; and mechanical control equipment is used for driving a surgical instrument to move to execute a puncture interventional operation, and the dynamic imaging equipment can be further used for collecting a motion track of the surgical instrument in the body of a patient. According to the surgical robot system, a to-be-scanned object can be accurately positioned, so that the surgical instrument can arrive ata target region through puncturing once; and meanwhile, the deviation of the track of the surgical instrument can be avoided. The invention further provides a control method of the surgical robot system.

The invention discloses a method for transforming fatty acid ethyl ester into glyceride, which comprises the following steps of: mixing the fatty acid ethyl ester and glycerol in a material tank; making the material pass through a glycerol separator by using a pump to separate free glycerin; then putting the material in a reactor in which immobilized lipase is filled; and making the material passthrough a packed tower to remove ethanol; making the material finally flow back to the material tank for performing 6 to 300h circular reaction; then carrying out molecular distillation on the reaction product to remove the unconverted reactant so as to obtain glyceride products. The method can improve the stability and bioavailability of the products, and has high application value for transforming functional fatty acids such as ethyl ester fish oil, algae oil, conjugated linoleic acid, arachidonic acid and the like into glyceride products.

A method for detecting a loss of a phase in a multiphase rotating field machine, the method comprising providing a first electrical current into the machine windings to cause the current vector to assume a first current vector position, sensing a first current in at least one selected phase winding of the machine, comparing the sensed first current in the at least one selected phase winding with a first calculated current for the selected phase winding, and detecting that a first phase fault has occurred if the first calculated and sensed first currents differ by more than a predetermined value.

The invention provides an embedded multilayer chip capacitor, and a printed circuit board having the same. The embedded multilayer chip capacitor comprises a capacitor body having a plurality of dielectric layers stacked one on another; a plurality of first and second internal electrodes formed inside the capacitor body, separated by the dielectric layers; and first and second vias extended vertically inside the capacitor body. The first via is connected to the first internal electrodes and the second via is connected to the second internal electrodes. The first via is led to a bottom of the capacitor body and the second via is led to a top of the capacitor body.

The invention relates to an inner thermal storage solar low-temperature thermal power generation system. The power generation system comprises a compound parabolic heat collector system, a thermal storage system and an organic Rankine cycle power generation system, wherein, the compound parabolic heat collector system comprises a high-temperature end compound parabolic heat collector array and a low-temperature end compound parabolic heat collector array; the thermal storage system comprises a liquid storage tank, a coil and a phase-change material; and the coil is evenly distributed in the liquid storage tank and the coil is internally filled with the phase-change material. The organic Rankine cycle power generation system comprises an evaporator, a steam turbine, a motor, a heat regenerator, a condenser, two pumps and six valves. Compared with the traditional solar thermal power generation system, the inner thermal storage solar low-temperature thermal power generation system is characterized in that: an inlet end of the steam turbine is provided with a phase-change thermal storage system which usually has very small power of thermal storage and heat release, thus reducing the average heat-exchange temperature difference between the phase-change material and an organic working substance; and on the other hand, a two-stage evaporator of a two-phase region and a liquid region is adopted in the system, thus being capable of reducing heat transfer irreversibility between heat-transfer fluid and the organic working substance, and lowering the average operating temperature of the heat collectors.

A bar code reader has an integrated scanning component module which is mountable on a printed circuit board. In one embodiment, the module may include the digitizer / decoder electronics, enabling the module to be used with a generic PCB. In some embodiments, the module includes a high speed optical scanning arrangement having an optical element which extends longitudinally of a flexible member, secured at one end. In other embodiments, the invention extends to a hand-held optical scanner having a scanning assembly, detector and data transmission coupling all mounted to a common printed circuit board, preferably located within a manually-graspable handle. In yet a further embodiment, an abuse-detector or accelerometer is provided for determining when the device is exposed to deceleration above a predetermined limit, and optionally for automatically shutting down applications programs and for providing a black-box-record of a short time frame before the device was exposed to an unexpected shock. Preferably, the reader is shock protected by a thermo-plastic elastomer housing section. An outgoing light beam is directed at a non-orthogonal angle relative to the PCB.

The invention relates to a device and method for cleaning, activating or pre-treating workpieces by blasting a carbon dioxide snow which is produced from pressurised CO2-containing fluids and at least one type of carrying compressed gas and is accelerated by means of a discharge nozzle (14), wherein a two-phase carbon dioxide mixture of a carbon dioxide gas and carbon dioxide particles is produced in an agglomeration chamber (8) by agglomerating and compressing carbon dioxide snow crystals which are radially added to the carrying gas in a multistage mixing chamber (10, 11, 12) comprising a central jet pipe (4), around which the carbon dioxide mixture circulates and which is used for supplying said carrying gas in such a manner that a high-energy turbulent gas flow for processing a workpiece is obtainable.

The invention discloses a method and a device for detecting and selecting laser-induce enhanced Raman spectrum in a liquid. The method comprises the following steps of: focusing the inducing light on a suspending to-be-detected sample and forming a three-dimensional light well in liquid; enriching metal nanoparticles on the surface of the to-be-detected sample; and coinciding the focuses of exciting light and inducing light, thereby forming a laser-induce enhanced Raman signal. The realizing method disclosed by the invention is simple and convenient, is obvious in spectrum enhancing effect and is fit for quick detection for in-situ Raman spectrum of a biological sample under a liquid environment; the to-be-detected sample and the metal nanoparticles are hatched together; the method is especially fit for the field of quick detection for diseases, epidemic situation, food safety, and the like; the toxic damage to the biological sample caused by the metal nanoparticles is greatly reduced, so that the true physiological status of living cell can be extremely reflected; the optical tweezers formed according to the method provided by the invention can be used for sorting, extracting and eluting, can realize the function of identifying and sorting Raman spectrum of a single living cell, and is beneficial to the follow-up study on the biological sample.

The invention discloses a SERS sensor of a sandwich structure for detecting tyrosinase, and a preparation and detection method thereof. The SERS sensor utilizes the specific recognition principle of the tyrosinase antigen antibody, and a solid phase antibody-to-be-detected antigen-labelled antibody sandwich structure is formed through the combination of the solid-phase antibody on a substrate andthe labelled antibody with the antigen through the adsorption of the magnetic substrate and the enhancement effect of the surface-enhanced Raman probe, the content of the tyrosinase is analyzed by recognizing a labelled molecular SERS signal, and then a surface-enhanced Raman analysis method for detecting the tyrosinase is established. The detection method disclosed by the invention has the advantages of being quick, sensitive, simple and less in sample consumption. Furthermore, the sensor for detecting the tyrosinase has good linearity, the detection limit is low, and can reach 1ng / mL. And meanwhile, the adding standard recovery rate of the tyrosinase in the human serum sample is in the range of 96.0%-136.0%. Therefore, the SERS sensor is expected to be an effective method for clinicallydetecting tyrosinase.

The invention provides a composite gear and a gear shaft comprising the combined gear. The composite gear comprises a gear body and an anti-abrasion layer. The gear body is made of fiber reinforcement polyamide composite material in an injection molding mode, and anti-abrasion composition is arranged on the outer surface of the gear body to form the anti-abrasion layer in an injection molding, or spraying or blade coating mode. A double-element structure comprising the gear body and the anti-abrasion layer is adopted for the composite gear, the gear body is made of the fiber reinforcement polyamide composite material, and therefore needed high mechanical strength, a small hot linear expansion coefficient and good flame retardant and anti-static capacity are provided for the anti-abrasion layer. The anti-abrasion layer is made of the anti-abrasion composition. The purpose is that mechanical strength of the composite material is provided, more importantly, the anti-abrasion performance is improved, the friction coefficient of the composite gear is low, and the anti-abrasion performance and self-lubrication performance are good. The reasonable material and reasonable technology enable the gear body and the anti-abrasion layer to be excellent in adhesive force and enable the composite gear to have good comprehensive performance.

The invention provides disk type test tube cleaning equipment. The disk type test tube cleaning equipment comprises a second water inlet pipe, a water outlet pipe of an annular water tank, the annularwater tank, a water spray pipe, a rotary shaft, a driven gear, a driving gear and test tubes, wherein two bearings which are rotatably inlaid in the top end and the tail end of a transmission shaft at the center of the driven gear are correspondingly mounted in bearing mounting holes which are formed in a bearing supporting base and in a cleaning cylinder base plate in a penetrating mode separately, and a sealing ring is inlaid in the bearing mounting hole formed in the cleaning cylinder base plate in the penetrating mode so that cleaning water can be sealed. A rubber fixing ring is fixedly inlaid in the inner wall of each test tube fixing ring, and the test tubes are inserted into the test tube fixing rings and fixedly pressed through friction of the rubber fixing rings in the test tubefixing rings. According to the disk type test tube cleaning equipment, the rotary shaft is arranged, and under the rotation effect of the rotary shaft, bristles which are evenly distributed on brush sleeves in an array mode can wipe and clean the inner walls of the test tubes, and thus residual substances or dirt on the inner walls of the test tubes can be completely cleared away.

The invention discloses a reversibly piezochromic security element for the forgery-protection of value documents, the security element being characterized in that it comprises a collection of optically contrasting pigment particles in a film or a coating layer of an elastic polymer. In a particular embodiment, the particles are optically variable pigment flakes, oriented in a position which is substantially different from an alignment in the plane of the film or coating layer.

The invention concerns a process for generating a feed-through in a semiconductor wafer, which has electric circuitry embedded in a front surface whereby the hole for the feed-through is generated by the combined use of a front side protection layer and a wet KOH etch process etching the hole from the back side of the wafer, where a photomasking process is subsequently used do define the via followed by deposition of the via material.

The invention relates to a solar-energy low-temperature thermal power-generation and photovoltaic power-generation combination system, comprising a compound parabolic collector system, a heat storage system, an organic rankine cycle power-generation system, a photovoltaic module and a photovoltaic power-supply system, wherein the compound parabolic collector system comprises a high-temperature end compound parabolic collector array and a low-temperature end compound parabolic collector array, and the photovoltaic module is arranged on the upper part of a heat absorber of the compound parabolic collector; the heat storage system comprises a liquid storage tank in which coil pipes are equally arranged, and PCM (phase change material) is filled in the coil pipes; the organic rankine cycle power-generation system comprises an evaporator, a steam turbine, a generator, a heat regenerator, a condenser, two pumps and six valves. The total power-generation efficiency of the combination system is greatly enhanced; and the adoption of the heat storage system avoids the application of additional accumulators and complicated tracking devices, thus reducing cost; and the adoption of two-class evaporator reduces non-reversibility of heat transmission of heat-exchanging fluid and organic work-medium so as to reduce average running temperature, thus being in favor of prolonging service life of photovoltaic cells.

A brake system, especially for a generator, including a rotor assembly, a stator assembly and a rotation axis is disclosed. The rotor assembly includes an outer portion which is located radially outward of the stator assembly. The outer portion includes a brake disc, and the stator assembly comprises at least one frictional member operatively configured for frictionally engaging at least a portion of the brake disc.

The invention discloses a method for deacidifying and refining high-acid value fish oil by using an enzyme method, comprising the following steps of: firstly, selectively esterifying free fatty acid reacting with alcohol in the fish oil by adopting immobilized lipase as a catalyst, and then neutralizing to obtain the refined fish oil. Compared with the traditional chemical refining method, because the method greatly reduces the acid value of grease, the refining yield is greatly improved, and the method has better economical efficiency and environmental protection feature.

Apparatus, methods, and system for wireless remote monitoring and controlling a sucker rod pump for producing hydrocarbons, providing self-adjusting methods for operation over a wide-range of operating conditions according to algorithms that automatically compensate for offset and amplitude drift in sensor data, automatically identify pump off conditions, and automatically optimize hold down time.

The invention relates to the technical field of automobiles, particularly to a control method for an AMT (automated mechanical transmission) power takeoff unit. The invention aims to provide the control method, a driver only needs to press a power takeoff button of the power takeoff unit, put into a gear or step on an accelerator according to the prompt of a display, the purpose of taking off power can be realized. The processes of putting into the gear and picking the gear for the power takeoff unit are simple and convenient, the structure is simple and reasonable, a control flow is clear, and the operation and the control are convenient. The method is characterized by comprising the following steps that a switch of the power takeoff unit is controlled, so that a signal is input into an AMT control unit; the AMT control unit controls an electromagnetic valve of the power takeoff unit, a range gear electromagnetic valve and a clutch, so that a piston on a cylinder of the power takeoff unit movably controls a position switch of the power takeoff unit; the position switch of the power takeoff unit transmits a state signal of the power takeoff unit to the AMT control unit; and the AMT control unit transmits a prompt signal to the display to prompt the driver for operation.

The invention provides a fully automatic transplanting combined machine. The machine includes traction equipment, operation equipment and a control system. The operation equipment is installed on a main machine frame and towed behind the traction equipment. The machine is characterized in that the operation equipment includes a rotary tillage ditching system, a micro soil preparation narrow-ditch formation system, a transplanting system and a soil covering and pressing system. The transplanting system includes more than one transplanting units. The combined machine can perform ordered rotary tillage stubble cleaning on an untilled land, bed surface leveling, ditch formation, narrow slit formation, transplanting, soil covering and compacting at a time, the soil condition required by high-speed transplanting of blanket seedlings of crops such as rapeseed is met, soil is not easily attached onto working parts for tillage and soil preparation, the transplanting quality can still be guaranteed under the condition of high-speed transplanting, structure configuration is reasonable, production, manufacturing, management and maintenance are easy, and the machine is suitable for application and popularization.

Provided is a motor driving apparatus including a motor drive unit including a plurality of transistors which are repeatedly turned on and off in response to a pulse having a pulse width modulated at a first carrier frequency to control driving of a motor in a normal operation state and which supply a drive current to the motor; and a control unit that controls the plurality of transistors to be turned on and off in response to a pulse having a pulse width modulated at a second carrier frequency higher than the first carrier frequency, when a voltage applied between input terminals of the motor drive unit rises to a predetermined value.

A method of detecting enclosure leakage of an electrodynamic loudspeaker mounted in an enclosure or box may include applying an audio signal to a voice coil of the electrodynamic loudspeaker through an output amplifier and detecting a voice coil current flowing into the voice coil. A voltage across the voice coil may be detected and an impedance or admittance of the loudspeaker across a predetermined audio frequency range may be detected based on the detected voice coil current and voice coil voltage. A fundamental resonance frequency of the loudspeaker may be determined based on the detected impedance or admittance and compared with a nominal fundamental resonance frequency of the loudspeaker representing a sealed state of the enclosure. Acoustic leakage of the enclosure may be detected based on a deviation between the determined the fundamental resonance frequency and the nominal fundamental resonance frequency of the electrodynamic loudspeaker.