192results about How to "Practical design" patented technology

The present invention relates to a method and structure for controlling plasma uniformity in plasma processing applications. Electron thermal conductivity parallel and perpendicular to magnetic field lines differs by orders of magnitude for low magnetic fields (on the order of 10 gauss). This property allows the directing of heat flux by controlling the magnetic field configuration independent of ions since the effect of modest magnetic fields upon the transport of ions themselves is minimal. Heat is preferentially conducted along magnetic field lines with electron temperatures on the order of 0.1 to 1 eV/cm being sufficient to drive kilowatt-level heat fluxes across areas typical of plasma processing source dimensions.

The invention relates to an ocean thematic drawing automatic compilation method based on a task flow. The method comprises steps of (1) ocean thematic symbol database preparation which divides ocean thematic symbols into 14 classes; (2) ocean thematic element symbolization which comprises ocean thematic drawing classification, data loading and classification drawing symbolization; and (3) diagram finishing which comprises drawing template design, drawing template and drawing type loading, metadata information filling and diagram outputting. The invention firstly unifies standard preparation of ocean drawings, integrates complex ocean elements which cannot be achieved on the GIS platform on a general GIS platform, changes the present situations that lots of drawing software are simultaneously used and drawing data formats are not uniform, and fills gaps of standard, normal and rapid preparation in the domestic ocean thematic drawing field.

The invention discloses a roof steel structure for a cement production line clinker warehouse and a construction method thereof. The warehouse is a reinforced concrete circular silo of which the diameter is 40 meters, and comprises a roof steel structure, an H-shaped welded steel part annular beam, an equipment steel platform and a warehouse top house, wherein the roof steel structure consists of18 sloping beams, an inclined support, a horizontal support, a Z-shaped steel purlin and a brace; a circular steel plate is paved on the H-shaped welded steel part annular beam; the equipment steel platform consists of a bracket, a rectangular main beam and a planar steel plate; and the warehouse top house consists of steel upright posts and roof beams, wherein the lower port of each sloping beamis connected with a pre-embedded connecting piece on the top of a silo wall in a bolting and welding way; the upper port of each sloping beam is welded with the annular beam; and roof colored steel plates are paved on all roofs. The problems of large roof load and easiness in damaging are solved; and the problems of overhead central point positioning of the annular beam and overhead axial positioning of each sloping beam are solved. The roof steel structure for the cement production line clinker warehouse has a reasonable and practical structural design; and a method for hoisting members witha QTZ63 tower crane and a 50t crawler crane is adopted during construction, so that the roof steel structure is more suitable for building a cement production line clinker warehouse roof in remote places or places without sufficient building equipment.

A charge transfer transistor includes: a first diffusion region and a second diffusion region; a gate for controlling a charge transfer from the first diffusion region to the second diffusion region by a control signal; and a potential well incorporated under the gate, wherein the first diffusion region is a pinned photodiode. A pixel of an image sensor includes: a photodiode for generating and collecting a photo generated charge; a floating diffusion region for serving as a photo generated charge sensing node; a transfer gate for controlling a charge transfer from the photodiode to the floating diffusion region by a control signal; and a potential well incorporated under the transfer gate.

The invention discloses a trajectory tracking control method and system based on longitudinal and transverse coordination. The trajectory tracking control method comprises the steps of information perception, trajectory planning, control layer modeling and driving execution. According to information perception, traffic environment information and vehicle state information of the intelligent vehicle are collected in real time; according to path planning, an expected path is planned according to information perception data; according to control layer modeling, a longitudinal and transverse coordination strategy is established according to a preview principle, an expected longitudinal and transverse control instruction is processed and the expected longitudinal and transverse control instruction is converted into an executable control instruction physical value; and according to driving execution, an execution mechanism of the vehicle is executed according to the physical value of the control instruction to realize the overall control of the vehicle. According to the method, a simple two-wheel dynamic model and kinematics are adopted for modeling the unmanned vehicle, feedback and feedforward steering control is designed through a backstepping method principle according to road information and vehicle motion characteristics, and compared with traditional PID control and nonlinearmodel prediction control, the accuracy and the real-time performance are improved.

The invention is applicable to the field of air cold medium pre-heating and particularly relates to a self-supporting wide gap heat exchanging element. The self-supporting wide gap heat exchanging element comprises a plurality of plate pairs which are overlapped layer by layer; each plat pair comprises upper and lower plate sheets which are arranged oppositely; a plurality of rows of convex ripples and concave ripples are distributed on the upper surfaces of the plate sheets along the same axis direction; the convex ripples and concave ripples are obtained by upwards and downwards pressing and molding the plate sheets; the convex ripples and concave ripples are distributed at intervals; the positions of the convex ripples and concave ripples on the upper plate sheets in the plate pairs correspond to the positions of the convex ripples and concave ripples on the lower plate sheets in the plate pairs; one group of opposite edges of the plate sheets are upwards folded and are transited into planes; the other group of opposite edges of the plate sheets are downwards folded and are transited into planes; the two adjacent folding edges in each plate pair are welded to form an air channel; the two adjacent plate pairs are symmetrical up and down, and the adjacent folding edges between the two adjacent plate pairs are welded to form a flue gas channel. The self-supporting wide gap heat exchanging element has the advantages that a wide gap channel can be combined, dirt and dust are not easy to deposit, the resistance fall also can be reduced and the heat exchanging efficiency is sufficiently improved.

The disclosed management method for file in FLASH comprises: building index as the first attribute of FLASH file, operating the file by user as the index. This invention overcomes the defect in prior art, eliminates potential threat, and has well stability and generality.

A method of predicting a displacement range of a wire harness, includes the steps of: designing a basic route of the wire harness; fixing the wire harness at least two different fixing points on the basic route; computing a displacement range of the wire harness between the fixing points, based on a length of the basic route between the fixing points including a dimensional tolerance, fixing positions and fixing directions of the wire harness at the fixing points, and a minimum bending radius of the wire harness; and displaying the displacement range of the wire harness in three dimensions.

A differential pulse detecting apparatus for terahertz wave time domain information and a differential pulse detecting method are provided. The apparatus includes a femtosecond laser generating unit with a certain repetition frequency, a beam splitting unit, a terahertz pulse generating unit, a unit containing a sample to be detected, a terahertz pulse collecting unit, a detecting laser pulse focusing unit, a detecting unit, a spatial light modulation unit and a terahertz pulse reduction unit. As the spatial light modulation unit can regulate the spatial optical path difference between a terahertz pulse and a detecting laser pulse, the difference between the terahertz pulse and the detecting laser pulse simultaneously reaching the detecting unit is an integral multiple of an adjacent pulse interval, and therefore the method can regulate the optical path difference in real time according to the size of a detected object under a condition that a whole optical path system is determined, a design of the overall system is not limited to the size of the detected object, and limitation of traditional terahertz time-domain spectroscopy systems on the size of the detected object is got rid of.

This invention relates to a deaf-mute cell phone including: a deaf-mute inputs content of phone into an EMS memory of the cell phone by the keyboard and writing column of short messages in the screen to press the sending key, and the memory sends the phone content to a deaf-mute to receive it in the way of short message in one way, and the other is to convert it to audio signal by a short message audio converter to be coded and transmitted to be received by the deaf-mute cell phone and ordinary man, when a deaf-mute receives the phone and the cell phone receives CSM or CDMA codes, it converts the phone to a digital circuit by a decode circuit then to convert it to word display by the digital circuit.

The invention discloses a multi-earphone volume control circuit and a control method. The multi-earphone volume control circuit comprises a coder-decoder for performing digital-to-analogue conversion on audio signals, and a single chip; the audio output end of the coder-decoder is simultaneously connected with the audio input ends of a plurality of earphone amplifiers, respectively; the audio output end of each earphone amplifier is correspondingly connected with an earphone; the single chip comprises a plurality of volume regulating command output ends which are correspondingly connected with the volume regulating command input ends of the earphone amplifiers one to one; one volume regulating command output end of the single chip is connected with the control signal input end of the coder-decoder. The multi-earphone volume control circuit and the control method have the advantages that the plurality of earphone amplifier are correspondingly connected with the corresponding earphones, respectively, and used for processing the audio signals of the earphone connected with the earphone amplifiers, and therefore, the volume of each earphone is controlled separately, individual difference can be eliminated and the design is more practical.

Based on the path search method of a complex network quotient space model, the invention is characterized in that equivalence relation is used for gradually classifying the coarsening of a network, so as to form a hierarchical quotient space chain, and obtain the quotient space model of the hierarchical number of each node. Then, the hierarchical numbers of the starting node and the end node to be searched for can be found in the quotient space model; according to the quotient spaces from fine to coarse in the corresponding hierarchical quotient space chain, comparison is made from the last number, the communication path between two nodes begins to be searched for from the coarsest quotient space, and then fine quotient spaces are searched for in the relatively coarse quotient spaces, until the finest quotient space. According to the hierarchical numbers of any two nodes, the distribution of 'the optimal path' between the two nodes can be found visually; further 'the optimal path' between any two nodes in the network can be found according to the hierarchical quotient space chain; then based on the model, the communication path between two nodes begins to be searched for from the coarsest quotient space to the finest quotient space after gradual refinement, until 'the optimal path' is found.

The invention provides a high-power high-speed rotating rectifier assembly. The high-power high-speed rotating rectifier assembly comprises a flat plate type rectifier and further comprises a structural frame, a cross-over block, a lower copper bar, an upper copper bar, a leveling cushion block, a disk spring, an inverted T-shaped guide post, a ball head bolt, an anode aluminum block and a cathode screw. The structural frame is formed by connecting a plurality of conductive screws with conductive screw holes in an upper pressing plate and a lower pressing plate, and the appearance of the structural frame is similar to a cylinder. The lower copper bar and the cross-over block are respectively and wholly of a T shape, and the lower portion of the cross-over block is fixed to a trapezoid through hole in the center of the lower pressing plate in an interference fit mode. A traditional bolt type rectifier is abandoned, a flat plate type rectifier tube is boldly adopted as a core device, a press-fitting structure is ingeniously designed according to the structural features of the device, it is guaranteed that the flat plate type device can still normally work on high-speed rotating occasions, and therefore the problem of application of the flat plate type rectifier to the high-speed rotating occasions is solved.

The invention relates to a pulley guide loading device, in particular to a pulley guide loading device for testing an airplane structure. The pulley guide loading device comprises anchor bolts, a first actuating cylinder mounting seat, fixing bolts, an actuating cylinder, a sensor, double connecting lugs, connecting bolts, a steel wire rope, a guide pulley seat, a pulley, pressing beams, gaskets, a turn buckle, double fixing lugs and a second actuating cylinder mounting seat. According to the pulley guide loading device, the perpendicular loading of a near-surface downward loading point of a test piece is converted into horizontal ground loading, so that the problem that the actuating cylinder cannot be perpendicularly arranged or a reserved stroke of a piston rod of the actuating cylinder is insufficient after the actuating cylinder is perpendicularly arranged, and a perpendicular test load cannot be applied due to the fact that the near-surface download loading point of the test piece is close to the ground in a test in the airplane structure is solved.