33results about How to "Eliminate stiffness" patented technology

The present invention provides an absorbability article which has cubic effect, high buffering property, and can keep concave-convex form not only under drying condition but also under the condition of absorbing sap by improving the form retentivity of concave-convex embossed pattern. The absorbability article (1) is provided with an absorbing body (4) between permeating front side and back side thin sheets (3) and (2), wherein, the front side thin sheet (3) is a multi-layer sheet which at least comprises a nonwoven cloth layer (3A) forming the skin contacting surface and a plastic film layer(3B) laminated on the non skin contacting surface of the nonwoven cloth layer, the plastic film layer (3B) is composed of material with a melting point lower than the nonwoven cloth. Under the heating condition with a melting point higher than the melting point of the plastic film layer (3B) and lower than the melting point of the nonwoven cloth layer (3A), the concave-convex embossing process composed of a plurality of projecting parts (7, 7......) projecting outside is executed to the front side thin sheet (3), and the hole making process is executed to the top of the convex embossed pattern or the bottom of the concave embossed pattern of the concave-convex embossed pattern.

Negative-stiffness-producing mechanisms can be incorporated with structural devices that are used on spacecraft that provide thermal coupling between a vibrating source and a vibration-sensitive object. Negative-stiffness-producing mechanisms can be associated with a flexible conductive link (FCL) or “thermal strap” or “cold strap” to reduce the positive stiffness of the FCL. The negative-stiffness-producing mechanisms can be loaded so as to create negative stiffness that will reduce or negate the natural positive stiffness inherent with the FCL. The FCL will still be able to provide maximum thermal conductance while achieving low or near-zero stiffness to maximize structural decoupling.

An ankle-foot orthosis for aiding or enhancing a user's foot and ankle movement, wherein the orthosis comprises at least one strut member, a calf shell, a foot shell, and a plurality of segments. Gaps formed between adjacent segments, an uppermost segment and the calf shell, and a lowermost segment and the foot shell have gap widths, wherein gaps at a higher location have larger gap widths than those at a lower location. Therefore, in dorsiflexion, the gaps close in series from bottom to top, gradually increasing the orthosis stiffness, creating a progressive dorsiflexion stop, and decreasing the magnitude of loads transferred into the user. In plantar flexion, the gaps similarly decrease in series from bottom to top, gradually increasing the orthosis stiffness, creating a progressive plantar flexion stop, and decreasing the magnitude of loads transferred into the user.

A protective glove having an elastic substrate, a first pad segment attached to the elastic substrate, and a second pad segment attached to the elastic substrate independently from the first pad segment. The elastic substrate can be disposed over an area intended to substantially cover a forearm, a wrist, a back of a hand, a finger, and/or a thumb of a user wearing the glove. The elastic substrate can be stretchable in different directions and to different degrees in the areas around each pad segment, thereby enabling independent movement of the individually attached pad segments to accommodate any number of contours and flex points. Other embodiments provide methods for manufacturing a protective glove having independent pads.

The invention discloses a precast prestresed-concrete beam-type stair and a making construction method, and belongs to the technical field of constructional engineering. The precast prestresed-concrete beam-type stair structurally comprises a beam-type stair body, an upper stair beam and a lower stair beam, wherein the upper stair beam and the lower stair beam are used for supporting the beam-typestair body; the beam-type stair body comprises a stair-section slant beam and ladder-shaped steps, the stair-section slant beam is arranged in the length direction of the beam-type stair body, the two ends of the steps are supported on the stair-section slant beam, the two ends of beam-type stair body are connected with the upper stair beam and the lower stair beam respectively, a prestresed reinforcing steel bar is arranged at the lower portion of the stair-section slant beam in the length direction, an upper common reinforcing steel bar is arranged at the upper portion of the stair-sectionslant beam in the length direction, stirrups are arranged outside the prestresed reinforcing steel bar and the upper common reinforcing steel bar in the length direction at equal intervals, the prestresed reinforcing steel bar and the upper common reinforcing steel bar are located in the stirrups, and step distribution reinforcing steel bars are arranged in the steps. The precast prestresed-concrete beam-type stair and the making construction method have the advantages of being large in application span, good in crack resistance, light in self weight, convenient to hoist and transport, excellent in earthquake resistance and the like.

The invention discloses a precast prestressed-concrete slab-type stair and a making construction method, and belongs to the technical field of constructional engineering. The precast prestressed-concrete slab-type stair structurally comprises a slab-type stair body aslant arranged, an upper stair platform, a lower stair platform, an upper stair beam and a lower stair beam; the upper stair platformis connected with the upper stair beam, the lower stair platform is connected with the lower stair beam, and the two ends of the slab-type stair body are connected with the upper stair beam and the lower stair beam respectively; ladder-shaped steps are arranged on the slab-type stair body; a prestresed reinforcing steel bar is arranged at the lower portion in the slab-type stair body in the length direction, an upper common reinforcing steel bar is arranged at the upper portion in the slab-type stair body in the length direction, and annular distribution reinforcing steel bars are arranged inthe middle in the slab-type stair body in the length direction at equal intervals, and are located between the prestresed reinforcing steel bar at the lower portion and the upper common reinforcing steel bar at the upper portion. The precast prestressed-concrete slab-type stair and the making construction method have the advantages of being large in application span, good in crack resistance, light in self weight, convenient to hoist and transport, excellent in earthquake resistance and the like.

The top (6) of a disposable weight-reducing suction cup (1) adapted to be intimately contacted with a weigh-reduction subject portion (8) is provided with a projection (24) and a thin-walled portion (35) disposed in the region of the inner surface of the cup (1) opposed to the projection (24). The cup (1) is intimately contacted with the weight-reduction subject portion (8), and then it is evacuated for suction by a pressure reducing valve (16) to dissipate the subcutaneous fat in the weight-reduction subject portion (8). After suction, this projection (24) is bent to destruct the thin-walled portion (35) to form a hole in the top (6), thereby equalizing the pressure in the cup with the outside pressure. This allows easy removal of the cup (1) from the weight-reduction subject portion (8). The absence of a complicated reduced pressure releasing mechanism results in an inexpensive disposable weight-reducing suction cup. Further, the barrel (4) of the weight-reducing suction cup (1) to be intimately contacted with the weight-reduction subject portion (8) is provided with a deformable portion (25) composed of a recess (20) and a thin-walled portion (18). The deformable portion (25) serves as a pressing portion adapted to be easily inwardly deformed and crushed when the interior (42) of the cup (1) is evacuated, and to laterally press the weight-reduction subject portion (8) to effectively dissipate subcutaneous fat.

The present invention relates to a composition comprising (a) pilocarpine or pharmaceutically acceptable salts thereof, (b) at least one alpha-stimulant agonist or pharmaceutically acceptable salts thereof and/or (c) at least one nonsteroidal anti-inflammatory agent (NSAID) or pharmaceutically acceptable salts thereof wherein (a) is present in a percentage by weight lower than 0.40%, (b) and/or (c) is present in a percentage by weight lower than 0.090% based on the total volume of the composition.

The invention discloses a non-contact pneumatic excitation device which is used for pneumatic excitation on flexible structures such as an aeroelastic model and the like. The non-contact pneumatic excitation device mainly comprises an air pump, pipelines, air nozzles and electromagnetic valves, wherein an air cylindersupplied with air by the air pump is connected with branch air pipelines through an air pipeline brancher; the air nozzles controlled by the electromagnetic valves are arranged at the end parts of the branch air pipelines; the electromagnetic valves and the air nozzles are integrally arranged and supported below the aeroelastic model by tripods; the electromagnetic valves are electrically connected with a control unit; the air pump inputs compressed air into air inlet ends of the electromagnetic valves through the branch air pipelines, and the electromagnetic valves receive pulse signals sent by a control unit to realize periodic opening and closing and output pulse airflow for excitation on the aeroelastic model. The device is not contacted with a model, influence of additional rigidity and additional quality of an excitation device and a displacement measurement device on dynamic characteristics of the aeroelastic model is eliminated, and the device is simple, convenient and low in cost; the non-contact pneumatic excitation device can be used for modal testing on various flexible aeroelastic models of a cable-stayed bridge, a suspension bridge and the like.

The invention discloses a zero-return-difference harmonic gear transmission device. The zero-return-difference harmonic gear transmission device comprises a rigid gear, a flexible gear and a wave generator; the wave generator is composed of a flexible bearing and an elastic cam; the flexible gear is located in the rigid gear; the upper end and the lower end of the flexible gear mesh with the upper end and the lower end of the rigid gear; the flexible bearing is located between the elastic cam and the flexible gear; the shape of the elastic cam is oval; a shaft hole is formed in the center of the elastic cam; and two structural holes used for forming thin walls of the cam at the two ends in the long axis direction of the elastic cam are formed in the positions, located on the two sides of the shaft hole, in the long axis direction of the elastic cam respectively. The zero-return-difference harmonic gear transmission device is simple in structure, reasonable in design and convenient to implement, backlash in circular teeth can be effectively eliminated, the transmission return difference can be effectively eliminated, in addition, the torsional rigidity can be guaranteed, the service life can be long, the application range can be wide, the practicability can be high, and the popularization and application values can be high.

The invention discloses a satellite carbon fiber composite plane frame suspension state machining clamping method. The method comprises following steps: supporting points of a certain number can be fixed to the to-be-machined face of a frame, a carbon fiber composite plane frame is suspended, and the gravity direction and the frame mounting plane are kept parallel to a certain degree; the supporting points are subject to measuring, trimming or adjusting, and the surfaces of the supporting points can reach certain coplanarity under the suspension state; the supporting point plane serves as the clamping standard, and the frame is clamped on a machine tool in a flat manner. Through the clamping method, the mounting face of the plane frame is machined, the variable, caused by gravity, of the product can be controlled within the index allowable range, the influence of the curing stress of the composite plane frame on the plane is reduced, and the planeness of the machined product mounting face meets the precision requirement under the space weightlessness environment.

The invention relates to the field of medicine preparation, in particular to a traditional Chinese medicine composition for treating gout. The traditional Chinese medicine composition is characterized by comprising, by weight, 8-11% of pine nodular branch, 7-9% of Herba Sarcandrae, 7-9% of Herba Abri, 7-9% of Herba Commelinae, 2-5% of Herba Siegesbeckiae, 2-5% of Herba Lycopodii, 6-9% of Herba Glechomae, 2-4% of Radix Zanthor Nu lum Nitidum, 3-5% of Rhizoma Cibotii, 3-5% of Caulis Sargentodoxae, 3-5% of Rhizome Dioscorea Nipponica, 2-4% of Caulis Trachelospermi, 4-7% of Carapax et Plastrum Testudinis, 2-4% of Rhizome Panacis Majoris, 2-3% of Radix Gentianae Macrophyllae, 6-9% of Rhizoma Smilacis Glabrae, 2-4% of Pheretima, 1-2% of Valeriana jatamansi, 2-3% of Bulbus Allii Macrostemonis, 2-3% of Bombyx Batryticatus, 2-4% of Lignum Sappan and 2-4% of Caulis Piperis Kadsurae. A preparation method of the traditional Chinese medicine composition includes soaking the raw materials with water, decocting and then filtering residues to obtain filter liquor. The traditional Chinese medicine composition has the advantages of low cost, high efficacy in treating gout and no toxic and side effect and avoids diseases recurrence.

A vertical-motion vibration isolator utilizes negative-stiffness-producing mechanism which includes a plurality of compressed flexures, each having a particular length in the compressed direction of the flexure and being oriented in a horizontal direction, wherein the plurality of compressed flexures are positioned relative to each other such that the length of each compressed flexure substantially overlaps the length of each of the other compressed flexures. At least some of the plurality of compressed flexures can be positioned in a stacked arrangement. The arrangement of compressed flexures forming a portion of the negative-stiffness mechanism can reduce the size of the isolator without compromising vibration isolation performance.

The invention relates to the technical field of straddle type monorails, in particular to an automatic measurement and control adjusting method for a PC track beam. The method comprises: suspending the top end of a side die on a frame cross beam, the side edge of the side die being connected with a side die numerical control adjusting device, and a bottom die being connected with a bottom die horizontal adjusting device; arranging a numerical control laser range finder and a laser level on the measuring instrument bracket to respectively detect the side edge position information of the side mold and the height position information of the bottom mold trolley; adjusting the side edge position state of the side mold according to the side edge position information, and adjusting the height position of the bottom mold according to the height position information to be flush with the reference surface. The measurement and control device is separated from the prefabrication adjusting device,measurement and control data are not affected by the prefabrication process, and the measurement data are accurate. And in combination with a measurement and control system, dynamic adjustment of theside formwork is automatically conducted, influences of factors such as formwork rigidity, formwork splicing gaps, adjusting device rigidity and concrete dead weight can be eliminated, and the prefabricating precision is effectively improved. And a numerical control method is adopted to automatically measure and correct the template, so that the track beam prefabrication precision is ensured.