291results about How to "Reduced carrying capacity" patented technology

Device and method for generating brief strong current pulses in a coil for generating magnetic field pulses which according to the electromagnetic induction principle induce stimulation currents in the body tissue triggering an action potential of the nerve and / or muscle cells, where the coil is positionable close to the body tissue to be stimulated so that its magnetic field passes through the body tissue, and where the device comprises a power generating unit that can generate a freely selectable temporal course of the current through the coil during the current pulse. A method for determining an optimized temporal course of a brief strong current pulse through the coil, where the temporal course of the current pulse is calculated using a method which numerically simulates the electrical behavior of nerve and / or muscle cells and the coil and optimizes the course of the current pulse regarding at least one parameter, or which by means of stimulating the nerve and / or muscle cells with predetermined current pulses optimizes the temporal course of the current pulse regarding at least one parameter and therefrom determines essential parameters of nerve and / or muscle cells.

A stent for implantation in a body lumen is described comprising at least one strut having an inner surface, an outer surface, a first side surface disposed between the inner surface and the outer surface, and a second side surface disposed between the inner surface and the outer surface; wherein the first side surface and the second side surface converge toward one another in the direction of the outer surface; and a coating comprising a therapeutic agent disposed on at least a portion of a surface of the strut.

The nanometer vibration-reducing and noise-reducing self repairing material is prepared with nanometer level metal powder and natural ore powder as main material and through adding several kinds of supplementary material and certain technological process, and is added into lubricating oil or ultrasonic medium as high performance repair material. The present invention features that the high performance repair material can create high hardness self-repairing lubricating film fast on the surface of metal friction pairs to regulate the interval of the friction pair, reduce friction coefficient, raise bearing capacity, leveling the friction surface, reduce vibration and noise caused by the unbalance, friction and damage of the moving machine parts, and prolong the service life of the machine parts. The present invention may be used widely in improving performance of mechanical friction parts.

The invention discloses a magnetic suspension linear motion platform based on the combination of permanent magnets and electromagnets. The electromagnets are vertically installed in a suspensoid, array permanent magnets are arranged on the surface of a guide rail, the suspension of the suspensoid can be realized by utilizing the principle of holopolarity repulsion between the electromagnets and the permanent magnets; and meanwhile, an eddy current displacement sensor is combined to realize the stable suspension of the suspensoid above the guide rail; two pairs of electromagnets are horizontally installed in the suspensoid, which can provide guidance for the linear motion of the platform by combining with the eddy current displacement sensor; a linear motor stator is fixed on a base, a linear motor rotor is fixed on the suspensoid, a grating ruler is arranged on the surface of the guide rail, and the reading head of the grating ruler is installed on the suspensoid, thus the precise linear positioning motion of the suspensoid can be realized. The platform provided by the invention can realize the functions such as super cleaning, high speed, long stroke, precise positioning motion and the like, which can not be realized by the traditional scheme that a rotary servo motor is utilized to drive, a precise ball screw is utilized to transmit and a slide guide is utilized to support, and has the advantages of good load bearing characteristic and stable suspension performance.

Device and method for generating brief strong current pulses in a coil for generating magnetic field pulses which according to the electromagnetic induction principle induce stimulation currents in the body tissue triggering an action potential of the nerve and / or muscle cells, where the coil is positionable close to the body tissue to be stimulated so that its magnetic field passes through the body tissue, and where the device comprises a power generating unit that can generate a freely selectable temporal course of the current through the coil during the current pulse. A method for determining an optimized temporal course of a brief strong current pulse through the coil, where the temporal course of the current pulse is calculated using a method which numerically simulates the electrical behavior of nerve and / or muscle cells and the coil and optimizes the course of the current pulse regarding at least one parameter, or which by means of stimulating the nerve and / or muscle cells with predetermined current pulses optimizes the temporal course of the current pulse regarding at least one parameter and therefrom determines essential parameters of nerve and / or muscle cells.

An opening in a building wall is closed by a building closure such as a window or door. A mounting part of the closure arrangement is received in a space between two countersupport surfaces formed by a U-channel or opposite L-members that protrude perpendicularly from the sill or jamb surface of the wall bounding the opening. Mounting brackets secure the U-channel or L-members to the wall. On one or both sides, a respective damping element is interposed between the mounting part and the respective adjacent countersupport surface. The damping element may be a plastically deformable metal strip. When an explosion force acts on the closure arrangement, the damping element is first plastically deformed to absorb energy, before the remaining force is transmitted into the building wall. The two damping elements on opposite sides damp forces from the positive and negative pressure waves of the explosion.

PCT No. PCT / GB96 / 01215 Sec. 371 Date Jan. 27, 1998 Sec. 102(e) Date Jan. 27, 1998 PCT Filed May 21, 1996 PCT Pub. No. WO96 / 40525 PCT Pub. Date Dec. 19, 1996A method of screen printing on to a hard non-absorbent substrate (1) involves using a screen (10) which has an ink permeable area (B) whose pattern corresponds to whatever is to be printed. The area B is divided into two parts (X and Y). Part X is of normal, maximum, ink carrying capacity and part Y is of reduced ink carrying capacity. The ink carrying capacity of the reduced ink carrying capacity part Yis determined by the extent to which it is coated with ink / impenetrable emulsion (20), the size of the pores (18) in the screen (10) and the type of ink used. The ink carrying capacity of the part Y reduces with distance away from part X. The emulsion coating (20) may be in the form of dots (200), with the dots (200) increasing in diameter with distance away from part X. During printing, the reduced ink carrying capacity part Y is located over the edge region (E) of the substrate (1), and the substrate is printed up to but not on to its edge (6).

The invention provides a space capturing and locking device. The space capturing and locking device comprises a driving structure and a driven structure. The driving structure comprises a shell assembly, a driving assembly, a transmission assembly, an upper plate auxiliary assembly and three sets of finger assemblies. The shell assembly is used for supporting and being connected with the driving assembly, the transmission assembly, the upper plate auxiliary assembly and the finger assemblies. The upper plate auxiliary assembly comprises rollers. The finger assemblies comprise four-bar mechanisms. The driving assembly drives the transmission assembly, the transmission assembly converts rotational motion into linear motion, the transmission assembly controls the finger assemblies to move upwards and downwards, the three sets of finger assemblies are closed due to compression of the rollers when moving downwards, and then the driven structure matched with the driving structure is clamped. The four-bar mechanism is in linkage when the finger assemblies move upwards, the finger assemblies are driven to be opened, and then the driven structure is released. The space capturing and locking device can be used for capturing and locking of a space mechanical arm on a small aircraft, and the advantages of being low in weight, small in size, large in tolerance and diverse in capture object are achieved.

The invention aims at providing a cold metal transition welding method and a device thereof. The device consists of an MAG (Metal Active Gas) welding wire automatic feeding unit, a vibration wire feeding unit and an argon arc hot wire welding gun unit; the MAG welding wire automatic feeding unit is connected with the vibration wire feeding unit; the vibration wire feeding unit is connected with the argon arc hot wire welding gun unit through a hose; the argon arc hot wire welding gun unit comprises a straightener, an auxiliary arc welding gun and a main TIG (Tungsten Inert Gas) arc welding gun; and the auxiliary arc welding gun and the main TIG arc welding gun compose a heating source of the argon arc hot wire welding gun unit. The welding method comprises the following steps of: switching on a welding main circuit, and initiating a main TIG arc to heat a welding workpiece; and starting the MAG welding wire automatic feeding unit and a vibrating motor after the arcing of an auxiliary arc is stable. According to the cold metal transition welding method and the device thereof, the welding process is stable, the welding quality is even, the wire-feeding speed and the welding current are independently adjusted, the device is simple, and the cost is low. Based on the ordinary MAG welding wire feeding and arc wire-heating equipment, the vibration wire feeding unit is introduced, thewire heating manner is changed, thus, the cold metal transition welding is realized.

The invention discloses a modification undertaking system. After a mobile management entity (MME) receives the modified access point name- aggregate maximum bit rate (APN-AMBR), the sum of the APN-AMBR of all activated APNs and the minimum value of the signed user equipment-aggregate maximum bit rate (UE-AMBR) are adopted as the newly set UE-AMBR; when the newly set UE-AMBR is inconsistent with the originally set UE-AMBR, a downlink network attached storage (NAS) transmission message which is sent by the MME to an evolved Node B (eNodeB) carries the newly set UE-AMBR; and the eNodeB modifies the UE-AMBR according to the newly set UE-AMBR in the downlink NAS transmission message. The invention simultaneously discloses a modification undertaking method. Through the scheme of the invention, when the modification is undertaken, the independent modification to the context of the UE does not need to be carried out, so that the chance of network signaling interaction and failure in modification undertaking is reduced.

An opening in a building wall is closed by a building closure such as a window or door. A mounting part of the closure arrangement is received in a space between two countersupport surfaces formed by a U-channel or opposite L-members that protrude perpendicularly from the sill or jamb surface of the wall bounding the opening. Mounting brackets secure the U-channel or L-members to the wall. On one or both sides, a respective damping element is interposed between the mounting part and the respective adjacent countersupport surface. The damping element may be a plastically deformable metal strip. When an explosion force acts on the closure arrangement, the damping element is first plastically deformed to absorb energy, before the remaining force is transmitted into the building wall. The two damping elements on opposite sides damp forces from the positive and negative pressure waves of the explosion.

The invention relates to a novel vibration isolation buffer with a high-static-low-dynamic-stiffness characteristic, in particular to a bladder type molecular spring vibration isolation buffer. The bladder type molecular spring vibration isolation buffer comprises an upper end plate, a bladder body and a lower end plate, wherein the bladder body is arranged between the upper end plate and the lower end plate and is filled with molecular spring mixed media, the spring mixed media are formed by mixing of water and porous hydrophobic particles with nanoscale pores, and the bladder body changes along with the change of the distance between the upper end plate and the lower end plate. The bladder type molecular spring vibration isolation buffer has the advantages of being high in bearing capacity and low in inherent frequency, is widely applied to equipment in the engineering field, and can meet the vibration isolation requirement of heavy-duty mechanical equipment especially. Due to the fact that the porous hydrophobic particles adopted are high in porosity, deformation required by vibration isolation can be achieved by means of an extremely small number of molecular spring mixing media.

A solid rocket engine with a high thrust ratio comprises a combustion chamber shell. A heat insulated layer is pasted to the inner surface of the combustion chamber shell. A heat insulated sleeve is bonded to the outer surface of a grain and forms a whole with the grain. The grain with the heat insulated sleeve is arranged in the combustion chamber shell with the heat insulated layer in a free-filling mode. A spray pipe is arranged at the outlet end of the combustion chamber shell. The grain comprises a booster-stage three-arm type grain body and a cruising-stage end-burning grain body which are connected in series to form the integrated grain. The booster-stage three-arm type grain body and the cruising-stage end-burning grain body are grain bodies for four-component hydroxy-terminated polyb propellants of the same formula. By means of the solid rocket engine with the high thrust ratio and a manufacturing method thereof, the problem of a small thrust ratio can be solved, the high thrust ratio can be provided, working is table, and the structure and performance are reliable.

The invention relates to a heat exchanger, particularly for a heating or air conditioning unit of a motor vehicle, comprising several flat pipes which are arranged parallel to each other and are penetrated by a heat-transmitting medium. An electrically operated heating element (114) which is mounted once the heat exchanger has been soldered is assigned to at least one part of the flat pipes as an additional heating device. Said heating element (114) is fixed to the heat exchanger by means of a holding element (115The inventive heat exchanger is characterized by the fact that each heating element (114) is mounted in front of the corresponding flat pipe and parallel thereto by means of the holding element (125) which also runs parallel to the flat pipe.

The invention relates to an artificial knee joint. The artificial knee joint comprises a femoral condyle prosthesis, a tibial platform prosthesis and a joint gasket, wherein the femoral condyle prosthesis is movably placed on the tibial joint surface of the joint gasket through the femoral joint surface after being assembled; a projection in the middle of the joint gasket extends into a square hole in the middle of the femoral condyle prosthesis to limit the motion range of the knee joint and prevent the dislocation of the joint; a protrusion part of the joint gasket is movably mounted on a profiled groove of the femoral condyle prosthesis; and a gibbosity part of the joint gasket is movably mounted on a middle circular groove of the tibial platform prosthesis. Due to the adoption of the structure, the technical problem of mismatching of anatomic forms of the conventional artificial knee joint product and the oriental knee joint due to different anatomic forms of the oriental knee joint and the occidental knee joint is solved. The artificial knee joint is suitable for the orientals or the oriental patients requiring total knee arthroplasty.

A roller body for a roller bearing includes at least one cavity extending from an end face of the roller body, at least one retaining element is disposed in the cavity, and at least one sensor is disposed in the cavity, such as in or on the retaining element. The sensor is at least partially surrounded by an elastic material in a protective manner.

The invention discloses a relay node non-access stratum processing method and equipment. The method comprises the steps that after access equipment is determined to be a relay node by a mobility management entity, when the access cell of the mobility management entity and the relay node on an evolved node B supports the relay node, the evolved node B is informed about that a network has been already prepared; after the evolved node B is determined to be selected as a serving gateway / packet data network gateway for the relay node, an indication that the network has been already prepared is transmitted to the relay node; when the relay node is informed about that the network has been already prepared, the relay node keeps the built connection with a packet data network; and when the relay node is not informed about that the network has been already prepared, the relay node conducts a detaching process to release the existing connection with the packet data network and conducts an attaching process to rebuild new connection with the packet data network. The relay node non-access stratum processing method and the equipment have the advantages that the starting process of the relay node can be simplified, the starting time of the relay node is shortened and the unnecessary signaling process and bearer management are reduced.

The invention discloses a combined ball shock insulation support. The combined ball shock insulation support comprises an upper connecting plate, a limiting plate, a positioning plate, a ball cover plate, balls, a ball distance limiting plate, a base plate, reset rubber, a limiting positioning column, a reset positioning bolt, a positioning ball, a positioning ball support, a positioning spring, a movable lever, a movable lever support and the like. An earthquake time fixed layer is formed by the upper connecting plate, the positioning plate and the ball cover plate, an integral is formed by the earthquake time fixed layer and a building, an earthquake time moving layer is formed by the base plate, the movable lever support and the movable lever, an integral is formed by the earthquake time moving layer and the ground, a rolling shock insulation layer is formed by the balls and the ball distance limiting plate, the shock insulation capacity is high, the energy produced by the earthquake can be isolated by the rolling shock insulation layer and is not transmitted to the building, the balls can be isolated through the ball distance limiting plate, and damage of the balls due to friction and extrusion is avoided. The movable lever is pressed on the limiting plate, the tension resisting capacity is greatly improved, and the overall bearing intensity is large. A pencil lead is added into the reset rubber, and therefore the reset performance of the reset rubber is greatly improved.

The invention discloses a bamboo bridge deck, which comprises prestressed ribs and a plurality of superposed bridge deck sheets, wherein the prestressed ribs penetrate through the bridge deck sheets; two ends of the prestressed ribs penetrate through shim plates and are fixed and tightened by using anchorage devices to constrain the bridge deck sheets; and each bridge deck sheet is formed by sequentially joggling a plurality of single bridge decks made of bamboo veneers end to end, and the joggled parts of the two adjacent bridge deck sheets are staggered. The required width of the bridge deck is achieved in the transverse direction by the method for sequentially joggling the single bridge decks end to end in the cross section width of a bridge. The basic single decks of the bamboo bridge deck can be conveniently prefabricated in a factory and assembled on site to form the bamboo bridge deck; the construction process is simple and fast, and the construction materials are environment-friendly and are easily reclaimed; and the bamboo bridge deck is suitable for a combined structural bridge, and is a bridge deck capable of meeting the using functions and the durability.

The invention discloses a wind turbine blade manufacturing method. Rigid cushion blocks are embedded into a blade root pavement layer to inhibit the deformation of a soft fibre-reinforced fabric. The rigid cushion blocks are divided a bolt sleeve lower cushion block and a bolt sleeve upper cushion block because of different forms of the rigid cushion blocks; a lower rigid control cushion block is manufactured by taking a blade root cylindrical section of a blade mould as a mould, so that the obtained cushion block shape has good matching property with the blade mould; an upper rigid control cushion block is manufactured by adopting a special mould; through reasonable design of the mould, the fit property between the cushion block and a bolt sleeve upper pavement layer can be ensured. The cushion block is manufactured by adopting pouring resin and the fibre-reinforced fabric which are used for producing the blade, so that the compatibility between the cushion block and the blade can be effectively ensured; an interface problem is avoided. The cushion block surface is perforated, so that the resin can penetrate through the cushion block smoothly and permeate a fabric pavement layer below; the resin pouring process of the blade is not affected. The upper surface and the lower surface of the cushion block are both protected by de-moulding cloth, so that the pollution of dust can be effectively avoided, and the cushion block is beneficial to storing for a long time.

The invention relates to a shear wall structure configured with crossed slant internal prestress. The shear wall structure comprises a shear wall body, horizontal steel bars of the shear wall body and vertical steel bars of the shear wall body, wherein a shear wall tooth plate and a prestress tension end anchor tool are respectively arranged at the left upper corner and the right upper corner of the shear wall body, prestress anchoring end anchor tools are respectively arranged at the left lower corner and the right lower corner of the shear wall body, and a crossed slant prestress steel beam and a crossed slant prestress pipeline are arranged between the prestress anchoring end anchor tool and the prestress tension end anchor tool at the opposite corners. A construction method of the structure comprises steps of shear wall template erection and binding of ordinary steel beams of the wall body; crossed slant prestress pipeline arrangement and installation; prestress steel beam penetration and prestress anchor tool installation; shear wall concrete casting and maintenance; and prestress tension, pipeline grouting and end part anchor sealing. The shear wall structure greatly improves the anti-seismic performance of the shear wall.

The invention relates to a processing method of a fiber strengthening composite corrugated board and belongs to the technology field of corrugated board processing. The processing method includes the steps of suppressing fiber on a face board paper in a wire rod or gridding mode, applying paper plastic adhesive on the fiber, and then compositing the fiber with a corrugated paper, conducting drying and cooling to finalize the design, slitting, creasing, transversely cutting and stacking. The paper plastic adhesive is mixture of additive, borax, caustic soda liquid, corn starch and water. The processing method of the fiber strengthening composite corrugated board has the advantages of being simple in procedure, convenient to implement, high in intensity of obtained paperboards, good in mechanical property of the obtained paperboards, relatively low in cost, capable of being applied to the fields such as corrugated paperboard processing and the like.

The invention discloses a roll gap of a multi-roll straightener, and belongs to the technical field of steel plate straightening. The roll gap equation of a third straightening roll is: k = 1+p-p2 / 2; R=E.t.(1-p) / sigmas, wherein E represents the elasticity modulus of the strip steel, t represents the thickness of the strip steel; and sigmas represents the yield strength of the strip steel, and p represents the proportion of the plastically deforming area in the cross section of the strip steel in a thickness direction. The roll gap is applicable to development of on-line control models. The models developed by using the roll gap are simple and practical; and when the roll gap is used, the residual stress in the strip steel can be eliminated effectively, the quality of the strip profile of the strip steel can be improved, the bearing capacity of the equipment can be lowered, and economic benefits can be increased.

The invention relates to a method and device for orienting magnetisable particles (4) in a kneadable material (3), in particular steel fibres or rings in unhardened concrete by means of an orienting body (1) provided with a non-magnetic wall comprising a front face section (1a) and a rear face section (1b). A kneadable material (33) and the front face section (1a) of the orientation body (1) are first and foremost displaced with respect to each other. The orientation body (1) is also provided with a magnetic unit (2) which is disposed on the internal side of said front face section (1a) and generates a periodically variable magnetic field acting on the kneadable material in order to orient the magnetisable particles (4). Said invention is characterised in that said magnetic field is divided into at least two areas (I II) containing the partial fields exhibiting different forces and / or different directions of force lines. The partial field of the first area (I) applies long trajectory orientation and attractive forces on the particles, the partial field of the second area (II) releasing orientedly positioned particles.

This invention discloses one small sample product reliability validation method based on maximum entropy method, which comprises the following steps: a, determining product load or load ability even value mu and even variance sigma to determine proper load strengthen parameter K; b, according to product reliability need R and credulity require r by use of needed sample computation formula to get needed sample N; c, processing success test on N sample; d, testing the product reliability.

The invention discloses a pulley system of a variable power crane hoisting hook and an integrated system thereof. The pulley system comprises fixed pulley blocks, hook pulley blocks, a hook group, a steel wire rope and a winding winch, wherein the hook pulley blocks are connected onto the hook group; the hook group is configured with maneuverable pulley blocks which can be used as a component of crane pulley blocks, the maneuverable pulley blocks and the hook group adopt a detachable connection structure, a fixed frame of movable pulley blocks with the same number as that of the maneuverable pulley blocks is arranged at the part of the fixed pulley blocks or below the fixed pulley blocks, when the maneuverable pulley blocks are dismantled and released from the hook group, the maneuverable pulley blocks is automatically lifted by the steel wire rope to the fixed frame of the corresponding movable pulley blocks to be fixed, and at the moment, the positions of the fixed maneuverable pulley blocks and the paired fixed pulley are kept relatively unchanged. When the multiplying power of the pulley system is adjusted, the connecting pin and other parts of the maneuverable pulley blocks are only needed to be dismantled, so the workload is small, and the utilization rate of a crane is not influenced.

The invention discloses a tilting-pad sliding bearing nozzle with elastic thermal oil partition devices. A bearing is a tilting-pad sliding bearing; a bearing retaining body is arranged outside tilting-pad broken pads; an annular oil supplying tank is arranged on the bearing retaining body; holes are formed in the oil supplying tank to enable lubricating oil to flow into nozzle bodies; oil inlet channels are formed in the nozzle bodies to correspond to the holes in the oil supplying tank, and thus a cold oil way is unblocked; oil spraying holes are oblique by 45 degrees; and the multiple oil spraying holes are formed in the nozzle bodies at equal intervals to cover the whole pad width. T-shaped grooves are formed in the nozzle bodies; counter bores are formed in the bottoms of the T-shapedgrooves; elastic elements are mounted in the counter bores; the thermal oil partition devices are mounted on the elastic elements; and holes are formed in the tops of the thermal oil partition devices to store a part of the lubricating oil, and it is guaranteed that when the thermal oil partition devices generate friction with a rotor, full lubricating can be achieved. The mixing ratio of the thermal lubricating oil and the new cold lubricating oil can be effectively adjusted, the oil inlet temperature can be significantly decreased, the cooling efficiency is improved, and it is guaranteed that the situation that after an oil film is formed, lubricating grease is damaged by the high temperature, and consequently the bearing capacity is reduced is avoided.

The invention relates to a composition material for bearing, a preparation method and tray application thereof. The composition material for bearing is prepared from a reclaimed material containing fly ash, ferrosilicon ash and polyvinyl chloride as well as fine particle calcium carbonate, wood flour, a stabilizer, a modifier, a foaming agent, a foaming regulator, a first lubricant, a second lubricant and the like added according to need. A tray is prepared by assembling the composition material for bearing. The composition material for bearing has a simple preparation method, low cost, high added value of products and wide application prospects, and can obtain good environmental benefit.

The invention relates to a Venus probe configuration which comprises an upper cabin and a lower truss structure. The upper cabin further comprises a top plate, a plurality of side plates and middle composition boards; the side plates are interconnected; the top plate is connected to the top part of each side plate; the middle composition boards are respectively arranged inside each side plate and are connected with the top plate; the lower truss structure comprises a truss separator; and the truss separator is connected to the bottom of each side plate. According to the invention, the installing and using requirements of parts such as an atmosphere levitron, a synthetic aperture radar, high-capacity storage boxes and the like can be met; and the Venus probe configuration is suitable for the research requirement on the Venus detection in the future and has the advantages of small transverse enveloping size and large bearing capacity. Moreover, the truss structure adopts a combination structure, the expansibility is strong, a graphite shaft is also adopted and the system thermal stability is high. Moreover, the Venus probe configuration also has the advantages of low longitudinal mass center, small response, small change of the rotational inertia, easiness for control and the like.