71results about How to "Reduce or even eliminate the impact" patented technology

The invention discloses an optoelectronic oscillator based on a multilayer film echo wall mode optical microcavity. A closed optoelectronic feedback loop consists of a laser (1), a polarization controller (2), a Mach-Zehnder intensity modulator (3), an RF amplifier (4), a filter (5), an optoelectronic detector (6), a multilayer film echo wall mode optical microcavity (7) and a laser frequency-locking module (8); and the closed optoelectronic feedback loop is the main structure of the optoelectronic oscillator. The optoelectronic oscillator provided by the invention can effectively reduce influence on the generated microwave frequency from temperature fluctuations and other external environment factors, and high-quality and steady microwave signals can be obtained; meanwhile, the signal noise can be weakened; and furthermore, the optoelectronic oscillator is small in size, light in weight, and easy to package and integrate.

The invention provides a downhole same-well injection-production gas-liquid separator. The gas-liquid separator is combined with an electric submersible pump, an overhead type electric submersible pump drainage gas production lifting system is adopted, and downhole separation of gas-liquid mixed flow can be achieved. The downhole same-well injection-production gas-liquid separator is characterized in that the gas-liquid separator is further provided with a gas-liquid separator body, a gas-liquid separating cover and a gas-liquid outer spiral body; the gas-liquid separator body is located in a cavity body surrounded by an upper housing, a liquid inlet housing and a lower housing, and formed in the mode that a gas-liquid separating body upper transmission shaft, a gas-liquid separating guide section, a gas-liquid separating body reverse cone section and a gas-liquid separating body lower transmission shaft are connected in sequence from top to bottom; a guide vane is welded outside the gas-liquid separating guide section; a gas inlet is formed in the gas-liquid separating body reverse cone section, and the outlet of a gas hole channel is located in the inner cavity of the upper housing; the gas-liquid separating cover is a hollow inverted frustum, and the gas-liquid outer spiral body is also the hollow inverted frustum.

The embodiment of the present invention discloses a display panel and a manufacturing method thereof and a display device. The display panel is divided into a display area and a non-display area. Thedisplay panel comprises a substrate; a light emitting device layer which comprises a first electrode layer, a light emitting layer and a second electrode layer which are laminated in turn from the substrate; an array circuit layer which is arranged between the first electrode layer and the substrate, wherein the array circuit layer comprises a gate driving circuit which is arranged in the displayarea; and a shielding layer which is arranged between the array circuit layer and the first electrode layer. The gate driving circuit comprises a clock signal line. The shielding layer at least coversthe clock signal line of the gate driving circuit in a direction perpendicular to the substrate so that the luminance of the light emitting device overlapping with the clock signal line and the luminance of the light emitting device not overlapping with the clock signal line tend to be the same in the direction perpendicular to the substrate, thereby improving the display uniformity of the display panel and the display effect.

The invention relates to polishing device and method of sapphire. The polishing device comprises a laser beam, a shoe plate, a worktable and a connecting piece, wherein the worktable is provided witha stepper motor driving the worktable to make X-direction movement and a stepper motor driving the worktable to make Y-direction movement, the connecting piece is fixed on the worktable, the shoe plate is arranged on the connecting piece, and a sapphire wafer to be polished is fixed on the shoe plate; the laser beam radiates to the sapphire wafer from the upward side of the sapphire wafer to be polished, and the stepper motor driving the worktable to make the X-direction movement and the stepper motor driving the worktable to make the Y-direction movement are respectively connected with a control device. The invention controls the X-direction movement and the Y-direction movement of a workpiece and the movement track of the workpiece relative to the laser beam by regulating the incident angle of the laser beam and controlling the worktable, thereby realizing the comprehensive scanning and polishing on the surface of the sapphire wafer. The invention can remove very little material, reduce and even eliminate the influence of heat on the sapphire material, thereby obtaining a polished surface with low surface roughness and low subsurface injury degree.

The present invention relates to a household appliance, in particular a refrigeration appliance. The household appliance comprises: a cabinet (2) defining a compartment (4), wherein the compartment (4) has a front opening (4a); and a storage unit (7) which is constructed independently from the cabinet (2) and is received within the compartment (4), wherein a gap (G) is formed between at least one side of the storage unit (7) and a corresponding side wall (2b) of the compartment (4). According to suggestions of the present invention, the household appliance further comprises a gap shielding member (50), which is located adjacent the front opening (4a) to cover at least a part of the gap (G).

The present invention discloses a grating displacement sensor based on second diffraction light interference. The sensor comprises a laser, a grating, a polarizing beam splitter, a quarter-wave plate,a backward reflector, a beam splitter, a photoelectric detector and an optical fiber. The method of second diffraction polarized light interference is employ to improve the resolution ratio of the system twice and improve the measurement precision; and an optical structure with symmetrical common paths is employed so that the optical path difference of two coherent lights is zero and the influence of an external environment on the system is reduced; and moreover the polarization optics features are utilized to improve the light application efficiency and improve the system reliability. The grating displacement sensor based on second diffraction light interference has important values for improvement of the measurement resolving power and the actual use precision of the grating displacement sensor.

The invention provides a face recognition method, a medium and electronic equipment. The face recognition method comprises the steps: acquiring a first image and a second image; obtaining a public non-occlusion area of the first image and the second image; obtaining a first feature vector according to a public non-occlusion area in the first image; obtaining a second feature vector according to apublic non-occlusion area in the second image; and obtaining the similarity between the first image and the second image according to the first feature vector and the second feature vector, and obtaining a face recognition result according to the similarity. According to the face recognition method, the accuracy of face recognition can be improved.

A roller taper defect treatment method for a four-high rolling mill mainly includes the following steps executed by a computer of 1 collecting basic device parameters; 2 collecting basic rolling process parameters of products of typical specifications; 3 defining an optimal roller inclining calculation process variable, a roller inclining amount, a roller inclining optimal step size, an objective function, an initial value of the objective function, a working roller channeling amount, a working roller bending force and an optimal roller inclining amount; 4 calculating the working roller channeling amount, the working roller bending force, the roller inclining amount and lateral distribution values of front tension of strips at an outlet of the rolling mill; 5 calculating the objective function; 6 completing the calculation after obtaining the roller inclining amount. The roller taper defect treatment method for the four-high rolling mill can achieve quantitative compensation for roller taper defects, minimizes or even eliminates the impact of the roller taper defects on the shape of the strips, solves the problem that the treatment of strip shape defects caused by roller taper is almost entirely dependent on experience of field operators and improves the accuracy quality of rolled strips.

The invention discloses a bundled pipe device and a bundled pipe conveying device for underground coal gasification. The bundled pipe device includes at least two continuous pipes and a fixing piece. A plurality of continuous pipes are connected in parallel to the fixed pipe. On the component, the axes of the continuous tubes are arranged in parallel, and there is a predetermined gap between the outer walls of any two adjacent continuous tubes. In the bundled tube device and bundled tube conveying device for underground coal gasification provided by the present invention, a plurality of coiled tubes are arranged side by side with a predetermined gap between them, so that when different coiled tubes deform with different amplitudes, the Even eliminate the impact on other coiled tubing, thereby reducing or even eliminating the negative impact on normal operation.

The invention relates to a load control method for stabilizing fluctuations of a distributed power supply. The load control method comprises the steps of: determining static load information, and establishing a static load model; determining output power of the distributed power supply; determining static load voltage set value; and tracing the output power of the distributed power supply. The load control method traces output of the distributed power supply through changing load magnitude by adjusting voltage, so as to reduce even eliminate adverse effects of output power fluctuations of the distributed power supply on a power grid. The load control method focuses on active and reactive joint optimization of the power system, has broad application prospect, and has a certain guiding significance to the intelligent development of the power grid.

The door and window frame installing method includes the steps of: machining vertical stile, decorating bar, rim and other parts; assembling and fixing vertical stile; driving wooden wedges into wall, jetting expanding glue between the vertical stile and the wooden wedges; installing decorating bar; and supporting and positioning until the glue becomes dry. The said construction process uses factory fabricated parts, and has the features of simple construction process, no noise, etc.

The invention discloses a multi-node cooperative interference and secure spectrum sensing method in spectrum sensing. In the multi-node cooperative interference method, a current sensing environment and an interference target are learnt by nodes, an optimal interference strategy is selected, the execution of the interference strategy is monitored in real time and is adjusted in real time, and the cooperative interference of PUEA and SSDF is fully used to increase the interference success probability. Meanwhile, the invention further discloses a secure spectrum sensing method used in a PUEA and SSDF cooperative interference environment. Trusted SU and untrusted SU are distinguished by identity identification values, and based on a sensing result of the trusted SU to a previous sensing time slot of a PU signal, the identity identification value of the SU of the next sensing time slot is modulated in real time to determine the SU that can enter a merging state of FC. By adopting the secure spectrum sensing method disclosed by the invention, in a comprehensive and complex sensing environment where PUEA and SSDF coexist, the influence of the PUEA and SSDF can be reduced and even eliminated at the same time, so that the entire sensing network keeps better sensing performance.

The invention discloses a tunnel supporting structure, and relates to the technical field of tunnel supporting. The tunnel supporting structure comprises an outer-layer lining, an inner-layer lining and a filling material, wherein, The outer side face of the outer layer lining is used for corresponding to an active fault zone of surrounding rock and is arranged on the inner layer lining in a sleeving mode, and the filling material is steel beads and is arranged between the outer layer lining and the inner layer lining. The tunnel supporting structure can adapt to large-scale shear deformation and tension, compression, bending, shear and torsion combined deformation, and the inner layer lining of the tunnel structure cannot be damaged by slab faulting after an earthquake.

The invention discloses a method for discriminating the freshness of green tea based on Raman spectroscopy and relates to the field of tea quality discriminating. The method comprises the following steps of 1, the boiling water being added into the green tea, and the green tea being covered and placed in a water bath kettle at the temperature of 70-100 DEG C for water bath; the ratio of the mass of the green tea to the volume of the boiling water being (1-3): (50-100); (2) preparing nano-silver colloid; (3) mixing the tea soup with nano-silver colloid in an equal amount, dripping the mixture on a glass slide, air-drying the mixture, and performing Raman detection in a collection range of 300-1800cm<-1>; and (4) carrying out baseline removal and smoothing pretreatment on the Raman spectrum, then carrying out OPLS-DA analysis on data, and carrying out discrimination according to spectral difference. Compared with the prior art, the method is advantaged in that the tea soup is simply brewed and used for Raman detection, then freshness of the green tea is judged, the sample pretreatment method is simple, the most original style of the tea soup is reserved, and the method can be widely applied to the fields of tea quality identification and the like.

The invention relates to a hot rolling method for improving the surface quality of a steel plate. The hot rolling method comprises the following steps of slab continuous casting, heating furnace heating, first-time high-pressure water descaling, roughing rolling unit rolling (attached type vertical roll edge closing), head cutting flying shear head cutting and tail cutting, second-time high-pressure water descaling, seven-rack finishing rolling unit rolling, cooling treatment and coiling machine coiling, the vertical roll side pressure amount of vertical roll edge closing ranges from 15 mm to 35 mm, and cooling treatment adopts strip steel laminar cooling. Edge defects can be effectively reduced and even eliminated through vertical roll edge closing; the r value is increased, so that the formability of a strip steel is better; the roughness of a working roll of a F7 rack is improved, and the influence of grinding knife patterns on the surface of the strip steel is eliminated; working rollers from a F1 rack to a F4 rack are high-speed steel rollers, and rolling oil input is controlled, so that the surface quality of strip steel is improved, and the pressing-in defect of oxide scales is avoided; and rapid cooling can reduce the cooling difference between the edge and the core of the strip steel, and the uniformity of the structure and crystal grains of the strip steel is improved.

A test pile comprises a hollow pile body. The lower portion of the pile body is located underground, and the pile body is located above or beside an underground pipeline. A test block pipe is installed in the pile body. A cabin door is arranged on the pile body. A wiring board is installed in the pile body. A test block is installed in the test block pipe. A reference electrode is installed in the pile body. The test block, the reference electrode and the pipeline are connected with the wiring board. The lower portion of the test pile is inserted underground, the test block is installed in the test block pipe, the reference electrode is installed in the lower end of the test pile, and therefore the lower portion of the test pile can be used as a reference pipe, and it is unnecessary to additionally install a reference pipe; installation and layout are simple, and the cost of whole pipeline cathode protection engineering is also reduced. When the reference electrode is calibrated, a working electrode for calibration can be conveyed to an underground position through the test pile, the working electrode is made to be close to the reference electrode to be calibrated as much as possible, and calibration is more accurate; the reference electrode to be calibrated can also be taken out to an overground position from the underground position along an inner cavity of the test pile, the reference electrode directly gets close to the working electrode on the ground, calibration is conducted, and therefore calibration accuracy is improved; moreover, the reference electrode and the test block can be taken out from the underground position and are convenient to replace and maintain.

The invention discloses a lead clothes wearing walking device and using methods, and belongs to the technical field of medical instruments. The lead clothes wearing walking device comprises shoulder supporting parts, a waist and hip connecting part and walking parts, and conversion of a following walking mode, a self-service walking mode and a sitting posture mode can be achieved through electricpush rods and sliding connecting pieces. The using methods of the lead clothes wearing walking device comprise the using method of the following walking mode, the using method of the self-service walking mode and the using method of the sitting posture mode. The influence of the load of lead clothes on medical personnel can be effectively reduced or even eliminated, and the medical personnel can keep a better working state during interventional therapy due to the conversion of the multiple use modes.

The invention provides a movement guiding method and system, a readable storage medium and a surgical robot system. The movement guiding method comprises the following steps: acquiring a virtual model of a first target object; according to the virtual model of the first target object and a preset first area division standard, a first target area related to the first target object is divided, and the first target area is displayed in a real scene in an overlapping mode so as to guide a moving object to move outside the boundary of the first target area. The movement guiding method can be applied to an operation executed by a surgical robot system and is used for guiding a moving object to move in an operating room, and the situation that the moving object mistakenly enters a first target area to interfere with the operation is avoided.

The invention discloses a gas injection device eliminating the sidewind influence. The device comprises a sintering machine trolley, a gas injection device body and an injection cover. The sintering machine trolley is located in the injection cover. The gas injection device body is located above the sintering machine trolley. Two side wallboards of the injection cover are located on the two sidesof the sintering machine trolley. A louver type sidewind-prevention top plate device is arranged at the top of the injection cover and comprises a connecting rod and louver boards. One end of the connecting rod extends out of the side face of the injection cover. The louver boards are connected with the connecting rod. The louver type sidewind-prevention top plate device is arranged at the top ofthe injection cover, by adjusting the louver type sidewind-prevention top plate device, the influence of sidewind on gas injection in a sintering machine is eliminated, and the injection device and acontrol method which can change along with changes of site sidewind conditions and flow field conditions in the cover are developed for achieving the purposes of stable production, smooth production and high yield of a whole production line.