166results about How to "Convenience constraints" patented technology

A cellular communication phone with integral headset retraction device is provided. The headset retraction device is integrally molded to a lower portion of the rear side of the phone. The headset retraction device includes a housing which serves to store a cable reel having a cable retracting mechanism and an electrical conducting cable. The electrical conducting cable includes a micro-sized microphone connected between an audio receiver earpiece and an auxiliary plug connector. An auxiliary plug storage receptacle is provided in order to prevent free suspension of the auxiliary plug connector. A cable guidance column is provided to aid in directing the electrical conducting cable into the retraction housing when being wound therein. An earpiece retention jacket is disclosed for supporting the audio receiver earpiece.

The invention relates to a multi-time-scale flexible load scheduling method for handling wind power uncertainties. The method comprises the following steps: a scheduling center predicting a power system load and wind power generation on different time scales; the scheduling center establishing a wind power predication uncertainty model, making a thermal power/hydropower set scheduling plan and releasing power system operation information and flexible load scheduling need information; load agents, according to response characteristics of different types of flexible controllable loads, and based on a multi-agent technology, marking quotation models facilitating their own benefits for reporting to the scheduling center; the scheduling center, according to schedulable capabilities and quotation information reported by the load agents, carrying out optimization scheduling on schedulable load resources of the multiple load agents, and sending load adjusting instructions and final compensation prices to the load agents; and the load agents adjusting the electricity power of managed loads through an electricity price mechanism or a stimulation mechanism. According to the invention, the method enriches the scheduling modes for the wind power uncertainties and enhances the adjusting capability of a power network.

A payout for controlling the unwinding of a coil of wire from a wire drum which has an outer drum body and an inner core substantially coaxial with the drum body includes a first planar ring juxtaposed the top of the wire coil and having a first inner edge closely adjacent to the core and a first outer edge spaced from the first inner edge and a second planar ring juxtaposed the top of the wire coil and having a second outer surface closely adjacent the drum body and a second inner surface spaced from the first outer surface of the first ring to define a continuous circular gap above the wire coil such that the wire passes upwardly through the gap as it is withdrawn from the wire coil. A third ring overlies the first and second rings and is laterally displacable relative thereto and eccentrically relative to the drum axis to further control payout of the wire. The second and third rings along can be used to control payout of the wire.

The invention discloses a modeling system of a proton exchange membrane fuel cell (PEMFC) and an intelligent predictive control method thereof. The modeling system at least comprises an input-output nonlinear function structuring and implementing module and an intelligent predicative control module, wherein the input-output nonlinear function structuring and implementing module is used for structuring an input-output nonlinear function relationship and identifying the function by using a least square support vector machine method; and the intelligent predicative control module is used for carrying out nonlinear rolling optimization on a predicated target function by using a particle swarm optimization algorithm to acquire the optimal controlled quantity so as to realize the intelligent predicative control over the PEMFC. According to the invention, by means of establishing an output power characteristic model of a PEMFC stack by using input-output data, a complex reaction mechanism inside the PEMFC stack is avoided, and the modeling speed and the modeling precision are high.

This invention puts forward an uncoupling test device for the scale factor and input shaft distortion angle of a gyro including a hexahedron frame, a holding strip, a baseplate and a holding down plate, in which, the hexahedron frame supports the holding strip, which restricts the baseplate, the gyro tilts to a certain angle along with the baseplate and 8 accurate location bolts are set on the baseplate, a test device is set on the level mesa of a single shaft rate swing table to provide an input angle velocity, the value of the tilted angle is got by testing the distance from the location bolt to the swing table mesa by a test device to uncouple the parameters based on the computation model.

The invention is a variable section conversion node for profiled steel concrete framework-steel support structure, interconnecting in-pillar profiled steel, in-beam profiled steel, steel support, in-pillar reinforced concrete and in-beam reinforced concrete and pouring then into an organic whole, where the steel support is orthogonally connected with in-pillar an in-beam profiled steel flange plates by section conversion, the web of the in-beam profiled steel in the node connection position is converted into heightening variable section web and the top surface of the heightening variable section web is welded with widening variable section upper wing plate, the bottom surface of the heightening variable section web is welded with widening variable section lower wing plate; the shape of the steel support in the node connecting position is converted into structure of variable section node conversion region and two flange plates of the steel support in variable section conversion region are orthogonally connected with the in-pillar and in-beam profiled steel respectively. And the invention intensifies fore bearing performance of node regions of the profiled steel concrete framework-steel support structure and ability of cooperating of profiled steel and reinforced concrete.

The invention relates to a requirement responding scheduling method for wind power uncertainty. The method comprises a scheduling trading center predicts a benchmark load curve and a wind power generation curve and releases scheduling information to load agents; the load agents perform learning and decision making according to scheduling requirement information, system operation information and historical trading information and formulate bidding strategies and reports to strategies to the scheduling trading center; the scheduling trading center performs optimal scheduling on generation and consumption power resources with the lowest scheduling cost as the target after obtaining load agent bidding information and generator set calling cost information and sends scheduling instructions and final compensation price to the load agent and the generator set; the load agents adjust consumption power by means of electricity price adjusting and stimulation with the lowest scheduling cost as the target after obtaining final scheduling instructions. According to the method, an effective way is provided for wide-area distributed medium and small volume load resources to participate in system scheduling, the wind power volume load admitting capacity is improved, and the scheduling cost is reduced.

The invention relates to a space-borne plasma antenna generation and emission device and a communication method. The device comprises a discharge tube, solenoid coils, an antenna, an air chamber, a radio frequency (RF) power source, a VLF/ELF wave feed source and a matching network. Space-borne plasma antenna submarine communication is used, and super-long plasma jet flows are jetted from a low-orbit satellite to be used as the VLF/ELF transmitting antenna, so that the device has high elusiveness, flexibility and maneuverability, weaknesses of foundation/shore-based submarine communication are prevented, and communication requirements of strategic nuclear submarines are fully met.

The invention relates to the technical field of planning and design of power dispatching systems, in particular to a wind-light-water complementary power generation plan calculation method based on power grid structure and cascade hydropower station hydraulic connection coupling in a mutual compensation operation mode of water power generation, wind power generation and photovoltaic power generation. The method comprises the following steps: establishing a layered structure covering a basin hydropower station, a wind power and photovoltaic physical power station and a power supply set according to a power delivery channel of the wind power, photovoltaic and cascade hydropower stations in the basin; on the basis of the established power station and power supply layered structure, establishing a wind-light-water complementary scheduling model which comprehensively considers a power station sending-out channel in a drainage basin and hydraulic connection between hydropower stations; and solving the models according to a hierarchical coordination method to meet the requirements of the cascade hydropower station and basin wind power and photovoltaic power complementary power generationoperation and plan making oriented to power grid operation.

The invention relates to a stirring friction connecting device capable of reducing workpiece deformation and removing flashes. The stirring friction connecting device is composed of a stirring shaft (1), a pressure block (2), roller retainers (3), rollers (4) and a sleeve (5). The sleeve (5) achieves moving and restraining effects on a workpiece through downward pressing force transmitted by the pressure block (2), so that it is guaranteed that the workpiece can be restrained at the optimal state at every moment in the welding process, and workpiece deformation is effectively reduced; in addition, in the downward pressing process of the sleeve (5), the flashes generated in the welding process can be effectively removed, and the subsequent milling process is simplified.

The invention relates to an operation method of a human-machine cooperative ophthalmic microsurgery auxiliary robot system, and relates to the operation method of the robot system. The present invention aims to solve the problem of poor accuracy and stability of the surgical operation of surgical instruments in the prior art. The method comprises the following steps: step 1: a rough positioning stage: in the rough positioning stage of the ophthalmic microsurgery, manually dragging the end effector of a double-operation arm robot by a hand-held mode, perceiving the direction of force through asix-dimensional force sensor, and controlling the double-operation arm robot to move so as to realize the rough posture adjustment on the surgical end effector; step 2: a fine positioning stage: stepping on a pedal switch, enabling a surgical syringe to enter perforation membrane on the sclera of a patient's eye with the help of a 3D microscopic device and by using a rocker on a surgeon's controlpanel, and adjusting the posture of the surgical syringe under the illumination of the light source on a sub-operating arm until the syringe aims at focus position; and step 3: drug injection. The method is used for fundus microsurgery.

The invention discloses a credit evaluation method based on tax big data analysis, and relates to the technical field of administrative management. Aiming to solve the problem of lagging of the existing tax payment credit evaluation, the method of the technical scheme comprises the steps of extracting and processing the tax data; performing the significant feature extraction on the evaluation subject of the tax data; analyzing the tax data, selecting and verifying the indexes, and scenarizing the extracted significant features; establishing an index system hierarchical structure based on the AHP; constructing a judgment matrix based on the hierarchical structure; calculating a normalized feature vector corresponding to the maximum feature value of the judgment matrix; calculating the weight of each index further, wherein each criterion and each index have a weight coefficient, and the sum of the weight coefficients of each layer is equal to 1; setting an initial value according to the influence degree of each index; and constructing and training a credit scoring model to obtain a new credit scoring model capable of directly outputting a scoring result. According to the invention, the taxpayer behaviors can be embodied through the credit scores more accurately and timely.

The invention relates to a brush head (3) of an electric toothbrush, which is provided with a brush hair support (4); brush hair (5, 6) is fixed in the brush hair support (4); and the brush hair moves when the electric toothbrush works. According to the invention, at least part of the brush hair is a variable tip brush wire (5) which is arranged on the brush hair support (4), so that a tip (5a) moves for a given maximum stroke dmax at most when the electric toothbrush works. Therefore, the toothbrush can be prepared through a benefiting way, the toothbrush has better cleaning effect particularly to minimum structures of between teeth and on the tooth surface, and simultaneously the mechanical load and the wear to the variable tip brush wire (5) caused thereby are minimum. The invention also relates to the electric toothbrush and a method for manufacturing the brush head (3).

The invention discloses a concrete restrained contraction ring crack resistance test device and a test method. The device comprises a restrained contraction ring component, automatic maintenance equipment and an intelligent test and control system; the restrained contraction ring component comprises a bottom plate, a restrained contraction ring and an outer mould; an anti-arc mould is arranged on the inside surface of the outer mould; the automatic maintenance equipment comprises a maintenance box and a temperature/humidity automatic adjustment system; the maintenance box is formed by a first box body which is used for placing a concrete testing piece, and a second box body which is used for placing the temperature/humidity automatic adjustment system; and the intelligent test and control system comprises a plurality of micro strain sensors, a signal conditioning circuit module, a microprocessor and a computer. The method comprises the steps of: 1. forming, 2. maintaining, 3. assembling the crack resistance test device, and 4. carrying out a concrete testing piece crack resistance test in two different temperature/humidity change conditions. The concrete restrained contraction ring crack resistance test device is reasonable in design, convenient to use and operation, high in test precision and high in reliability, has the advantage of relatively scientifically evaluating the crack resistance of concrete and has high popularization and application values.

The invention discloses a stable high-restraint high-frequency small-amplitude boundary local die operation method suitable for a fusion reactor. On the condition of optimized high inner resistance, high boundary safety factor, high polarized specific voltage and high triangulation, high plasma energy storage and high plasma core restraint are obtained, and small-amplitude high-frequency boundary local die is obtained. The high core restraint facilitates sustaining of high parameter of the plasma core part and facilitates realization of a fusion reaction. A high-frequency small-amplitude boundary local die facilitates settlement of a first wall transient heat load problem, and furthermore has relatively high particle eliminating capability, thereby preventing a plasma impurity core polymerization problem. The operation parameter interval which is required by the method is compatible with the operation interval of a future fusion reactor. Furthermore stable state operation of the plasma can be realized. The stable high-restraint high-frequency small-amplitude boundary local die operation method has low breakage risk, excellent robustness and high repeatability. The stable high-restraint high-frequency small-amplitude boundary local die operation method has a relatively ideal operation mode which may be used for the reactor grade.

The invention discloses a method for manufacturing a multi-layer hollow structure through a closed section pipe blank and relates to a method for manufacturing the multi-layer hollow structure to solve the problems existing in an existing method for manufacturing the multi-layer hollow structure, improve the light weight degree of the multi-layer hollow structure and expand the application range of the multi-layer hollow structure. The method includes the main steps that firstly, structural design is conducted; secondly, technology design is conducted; thirdly, prefabricated blanks are prepared, wherein a skin blank and a core pipe blank are formed to the needed skin prefabricated blank and the needed core pipe prefabricated blank; fourthly, assembling is conducted, wherein the formed skin prefabricated blank and the formed core pipe prefabricated blank are assembled into a corresponding assembling structure according to design of the multi-layer hollow structure and a decomposing structure; and fifthly, connecting is conducted, wherein the obtained skin prefabricated blank and the obtained core pipe prefabricated blank in the assembling structure are mutually connected to form an integral connecting piece through a connecting method. The method is used for manufacturing of the multi-layer hollow structure.

The invention provides an FRP pipe composite bar sea sand concrete column and a preparation method thereof. The concrete column includes an FRP-steel composite bar cage, an FRP pipe and concrete. TheFRP steel-composite bar cage is formed by an FRP-steel composite bar and a spiral stirrup wound around the outside of the FRP-steel composite bar. The FRP steel-composite bar includes a steel bar andan FRP fiber layer coated on the outer surface of the steel bar. When the concrete column is subjected to axial pressure, the steel bar in the FRP-steel composite bar exerts the compression resistance. When the column is biased, the FRP-steel composite bar placed on the tension side can not only exert high tensile strength of an FRP material but also take advantages of the high tensile strength and good ductility of the steel. Correspondingly, the steel bar in the FRP-steel composite bar on the pressure side exerts the compression resistance, high modulus of elasticity, good ductility and outstanding anti-corrosion performance can be achieved, and seawater and sea sand not desalinated can be used directly.

The invention discloses a neutron beam injector ion source field reverse configuration plasma radio frequency driver, which comprises a vacuum cavity. Outside the vacuum cavity, two coils arranged in parallel are used as a radio frequency power supply antenna. Each coil consists of windings with 1.5 turns or more. The distance between the two coils is larger than the maximum gap between any windings. The two coils are connected with the same phase RF current and the magnetic fields generated by the coils share the same direction, and a metal Faraday cup is arranged at the inner side of the vacuum cavity. The present invention overcomes the shortcomings of the conventional plasma radio frequency driver of neutron beam injector ion source, which uses a uniform magnetic field confinement plasma mode. The driver of the invention utilizes an alternating non-uniform magnetic field and the driven self-magnetic field of the annular plasma current and establishes a field reversal configuration plasma confinement mode, therefore, preventing the Faraday cup from being in direct contact with the high temperature plasma and benefiting the temperature rise and the constraint of the plasma.

The invention discloses a skirt-type supporting device provided with embedded parts and used for a reactor pressure vessel. The skirt-type supporting device comprises a skirt-type supporting base, the embedded parts and stopping blocks, the upper end of the skirt-type supporting base is connected with the reactor pressure vessel, the lower end of the skirt-type supporting base is fixed to the embedded parts, and the stopping blocks penetrate through the embedded parts to be embedded into a concrete foundation. According to the skirt-type supporting device provided with the embedded parts and used for the reactor pressure vessel, the skirt-type supporting base is arranged, the upper end of the skirt-type supporting base and the reactor pressure vessel are welded, the lower end of the skirt-type supporting base is fixed to the embedded parts at the bottom of a reactor through foundation bolts, the pressure vessel can be effectively supported and fixed, the outer surface of the reactor pressure vessel is exposed to the maximum degree, in-service inspection is conveniently carried out on the pressure vessel when the reactor runs, and the requirement for supporting the periphery of the pressure vessel is met.

The invention provides a vortex pump impeller with a groove structure. The impeller comprises impeller blades, a rear cover plate, a hub and back blades, wherein the impeller blades are located on oneside of the rear cover plate, the back blades are located on the other side of the rear cover plate, grooves are formed in the rear cover plate, each groove is formed in the middle of a blade passageway between every two impeller blades, and the grooves are consistent with the blades in shape. The vortex pump impeller has good hydraulic performance, and the grooves are additionally formed in therear cover plate, so that the constraint of the impeller on fluid is enhanced, and losses are reduced.

The invention provides portable multifunctional flushing equipment for medical use in the ophthalmology department. The equipment includes a head fixing band, an eyelid supporting base structure, a portable box structure, an adjustable fixing base structure, a liquid spraying ball structure, an adjusting buckle, a blinder, a liquid outlet nozzle, a liquid return pipe, a liquid accumulation bottle,connection holes, a water spraying pipe, an adjusting valve, a three-way pipe and a connecting belt, wherein the head fixing band is connected to the outer side of the upper surface of the blinder through glue; the eyelid supporting base structure is connected to the middle of the inner side of the front surface of the blinder through glue. Through arrangement of a storage box, more convenience is provided for collecting and placing the flushing equipment, the equipment is convenient to carry, and the placement space is saved at the same time. Through arrangement of an upper eyelid supportingbase and a lower eyelid supporting base, the upper and lower eyelids are opened separately and conveniently, a user is prevented from winking, and it is ensured that cleaning operation is accuratelycarried out. Through arrangement of a U-shaped clamping base, the liquid accumulation bottle is fixed conveniently and prevented from shaking, and influence on reflux of liquid is avoided.

The invention discloses an anchor cable mounting device. The anchor cable mounting device comprises a bottom conveyor, an anchor cable machine assembly, a guide device and a top conveyor, the top conveyor is arranged at the top of the anchor cable machine assembly and used for conveying an anchor cable upwards at the top of the anchor cable machine assembly, the bottom conveyor is arranged at the bottom of the anchor cable machine assembly and used for conveying anchor cables to the top conveyor, and the guide device is arranged between the top conveyor and the bottom conveyor and used for guiding the anchor cables conveyed by the bottom conveyor to move to the top conveyor along a guiding path between the top conveyor and the bottom conveyor. The bottom conveyor and the guide device are arranged, so that the anchor cable can be conveyed to the top conveyor only by operating at the bottom of the anchor cable machine assembly; and by means of the restraining effect of the guide device, the anchor cable can be well restrained, the anchor cable is prevented from swinging or shaking at will, and therefore workers are prevented from being injured, and property damage is avoided.