2016results about How to "Reduce rigidity" patented technology

The present invention relates to a prosthetic mitral valve device for implanting at the native mitral valve region of a heart. The prosthetic mitral valve coaptation enhancement device comprises a main body consisting of a stentframe and a valve element attached thereto, wherein the main body has a sealing section and a valve-bearing section, the valve-bearing section; the shape of the sealing section of the main body, in the compressed state, has a form that is adapted to the coaptation zone of the native mitral valve during systole, and the sealing section of the main body, the radial rigidity of the stentframe is lower than the radial rigidity of the valve-bearing section; the prosthetic mitral valve coaptation enhancement device further comprises at least one anchoring element, which anchoring element is coupled to the main body and is capable to anchor the main body within the native mitral valve region of a heart.

The invention provides a solid golf ball having a solid core and a cover layer that encases the core and has an outermost layer on an outside surface of which are formed a plurality of dimples. The solid core is formed of a rubber composition composed of 100 parts by weight of a base rubber that includes 60 to 100 parts by weight of a polybutadiene rubber having a cis-1,4 bond content of at least 60% and synthesized using a rare-earth catalyst, 0.1 to 5 parts by weight of an organosulfur compound, an unsaturated carboxylic acid or a metal salt thereof, an inorganic filler, and an antioxidant. The solid core has a deformation, when compressed under a final load of 130 kgf from an initial load of 10 kgf, of 2.0 to 4.0 mm, and has a specific hardness distribution. The cover layer is formed primarily of a polyurethane material and has a thickness of 0.5 to 2.5 mm, a Shore D hardness at the surface of 50 to 70 and a flexural rigidity of 50 to 300 MPa. The golf ball has a deformation, when compressed under a final load of 130 kgf from an initial load of 10 kgf, of 2.0 to 3.8 mm. The solid golf ball is advantageous overall in competitive use.

A glass ceramics composition for recording disk substrate consists essentially, expressed in terms of weight percent on the oxide basis, of from 65 to 80 wt % of SiO2, from 3 to 15 wt % of Al2O3, from 3 to 15 wt % of Li2O, from 0.2 to 5 wt % of P2O5, and from 0.1 to 15 wt % of ZrO2, wherein a value of ZrO2/P2O5 is within a range from 1.1 to 8.5, expressed in terms of weight percent on the oxide basis.

The invention relates to an electronic device 60 comprising a flexible display arranged to be alternated between a collapsed state and an extended state, said flexible display comprising edge portions, the flexible display being further provided with an edge protector cooperating with the edge portions, wherein the edge protector is conceived to be alternated between a collapsed state and an extended state. In the electronic device 60a the flexible display 65 is conceived to be wound about a roller 61. The edge protector comprises rigid segments 63a, 63b, 63c, 62a, 62b, 62c, 62c interconnected by suitable means 64a, 64b, 64c. Wiring, pins, bars may be used for interconnecting means 64a, 64b, 64c. In the embodiment 60a an extended position of the edge protector is shown. In the embodiment 60b a collapsed state of the edge protector is shown comprising aggregations of segments 62′, 62″. The bars 64a, 64b, 64c partly protect the back surface of the display. The invention further relates to the electronic device comprising a flexible display wherein the flexible display is provided with an edge protector attached at least partially to the edge portions of the flexible display.

Improved compositions and methods for AAV mediated gene therapy are disclosed.

The invention discloses a high-flexibility melamino-formaldehyde foam material and a preparation method thereof. The preparation method comprises: firstly, preparing melamino-formaldehyde prepolymer modified by polyol into aqueous solution with definite weight concentration; weighting 100 parts by weight of prepolymer aqueous solution; adding 0-15 parts by weight of surfactant, 1-20 parts by weight of foaming agent, 0-10 parts by weight of accelerator and 0-10 parts by weight of curing agent to be fully stirred and mixed to prepare foaming liquid; filling foaming liquid into a microwave chemical reactor or a high-temperature oven; and foaming for 30s-15min at the temperature of 100-300 DEG C to prepare the foam material. The melamino-formaldehyde foam material disclosed by the invention solves the problems of big brittleness, poor flexibility, easy duslting of foam, complex preparation technology, high production cost and the like of the existing melamino-formaldehyde foam material and has wide application prospect.

A goggles structure reduces its overall weight and rigidity to improve the comfort of wearing, which provides better ventilation and prevents its wearing without a lens. The goggles comprise a goggles frame including a frame and a connecting section, a lens, a pair of head strap connecting means, and a head strap. At least one hanging hook is protruded from the top of the frame. A plurality of hanging holes corresponding to the hanging hooks is disposed at the top and bottom of the lens for fixing the lens onto the frame. The head strap latches the head strap connecting means onto both sides of the lens for preventing the lens from falling out accidentally. When the goggles are not used, the latching force disappears and allows its removal for cleaning. A ventilation structure disposed inside the lens is provided to prevent splattering.

Disclosed is a magnetorheological fluid speed bump. At least one rectangular channel is arranged in a direction perpendicular to the lane length direction on the entry side of a lane speed zone. A piston cylinder is disposed in each channel; a piston in the piston cylinder is provided with through holes; a spring is elastically compressed between the bottom wall of a cylinder block and the piston; the cylinder block is full of magnetorheological fluid below the piston; a solenoid coil is disposed around the magnetorheological fluid in a cavity of the channel; a piston rod at the top of the piston upwardly penetrates through the top of the cylinder block of the piston cylinder, and a speed bump is fixed at the top of the penetrating end; the speed bump covers an opening of the channel; the speed bump can horizontally move up and down in the channel. A speedometer is installed on the lane on the entry side of the speed bump and is in signal connection with an electric control unit. The rigidity of the speed bump is flexibly variable, rigid contact and stress between the speed bump and vehicles can be reduced within an allowable speed range, the vehicles and the speed bump are protected effectively, driving comfort is improved, and the speed of the vehicle exceeding the allowable speed range can be limited effectively.

Disclosed herein is a composite comprising an elastomer with an embedded network of liquid metal inclusions. The composite retains similar flexibility to that of an elastomer but exhibits electrical and thermal properties that differ from the properties of a homogeneous elastomer. The composite has applications for wearable devices and other soft matter electronics, among others.

The invention relates to an intramedullary nail used for treating fractures of the femur. It comprises a distal end, which is appointed for insertion into the marrow cavity channel, a proximal end, and a longitudinal axis. A first bore is located adjacent the proximal end and extends through the proximal end and transversely intersects the longitudinal axis, and serves to accommodate a femoral head screw. The center axis of the first bore forms an angle with the longitudinal axis that ranges from 110° to 150°. A second bore is located between the first bore and the proximal end and extends through the proximal end and transversely intersects the longitudinal axis, and serves to accommodate a hip pin. The second bore is at least partially shaped as an oblong hole or slot with a width B and a length L>B, and the length L of the oblong hole extends in the direction of the longitudinal axis.

A walking control apparatus of a robot includes a joint portion provided in each of a plurality of legs of the robot, a pose sensing unit to sense the pose of the robot, a walking state determination unit to determine a walking state from the pose of the robot, a knot point compensation value calculator to determine a Center Of Mass (COM) of the robot from the pose of the robot and to calculate a knot point compensation value, a desired angle trajectory generator to generate a reference knot point of the joint portion corresponding to the walking state, to compensate for the reference knot point using the knot point compensation value so as to generate a desired knot point, and to generate a desired angle trajectory of the joint portion using the desired knot point. The knot point which is the angle command of the joint portion of each of the legs to perform the next step is compensated for based on the COM, and the compensated desired knot point is smoothly connected using the spline curve such that the robot walks similar to a human. In addition, in order to maintain balance while walking, the angle of the joint portion of the intermediate point of the current step is fed back and the knot point of the next step is predicted and adjusted, such that the robot stably and smoothly walks.

A glass ceramics composition for recording disk substrate consists essentially, expressed in terms of weight percent on the oxide basis, of from 65 to 80 wt % of SiO2, from 3 to 15 wt % of Al2O3, from 3 to 15 wt % of Li2O, from 0.2 to 5 wt % of P2O5, and from 0.1 to 0.8 wt % of ZrO2.

A pillar structure which includes a pillar member connected to an upper potion and a lower portion of a transversely outer vehicle body. The pillar member is formed into a channel open toward a compartment, with a transversely outer base wall, and a pair of side walls which are thinner than the base wall and extend from both front and rear sides of the base wall. Each side wall is formed to have a first tapered portion gradually reducing in thickness from a base end portion of the side wall to a substantially center portion of the width thereof. Stiffening projections are formed on an inner surface of each side wall at predetermined intervals in a pillar longitudinal direction, and extend from a distal end portion of the side wall to the base end portion thereof.

A polypropylene-based resin composition comprising: (1) 55 to 75% by weight of a polypropylene-based resin (A) selected from the following (i) and (ii); (i) a crystalline propylene-ethylene block copolymer composed of a propylene homopolymer portion as a first segment and a propylene-ethylene random copolymer as a second segment, and (ii) a mixture of the crystalline propylene-ethylene block copolymer (i) and a crystalline propylene homopolymer; (2) 10 to 15% by weight of an ethylene-octene copolymer rubber (B) having a melt flow rate (measured according to JIS-K-6758, 190 DEG C.) of 0.5 to 10 g/min., an octene content of 20 to 25% by weight and a density of 0.860 to 0.875; and (3) 15 to 30% by weight of talc (C) having an average particle diameter of not more than 3 mu m, the total amount of (A), (B) and (C) being 100% by weight, wherein said polypropylene-based resin composition satisfies the following expression:0.25</=(A)'/[(A)'+(B')]</=0.40in which (A)' represents an amount by weight of the second segment of the crystalline propylene-ethylene block copolymer (i) in the polypropylene-based resin composition and (B') represents an amount by weight of the ethylene-octene copolymer rubber (B) in the polypropylene-based resin composition, and further has a specific flexural modulus, Izod impact strength, elongation, melt flow rate and density.

In a track with a rotatable bushing which is brought into engagement with a sprocket of a track-type vehicle, it is intended that strength is enhanced rationally by link functionality sharing and by combination of such assigned functional tasks for achieving further improvements in rotatable bushing function. To this end, a track link comprises a combination of an external link and an internal link; a coupler pin hole is provided through the external link; a bushing hole is provided through the internal link, and the thickness dimension of a bushing hole formation part of the internal link is made greater than that of a coupler pin formation part of the external link.

The heat insulating mortar powder contains cementing material, foamed modified polystyrene grain, modified expanded pearlite, cementing material modifier and fiber. The foamed modified polystyrene grain contains foamed polystyrene grain, foamed polystyrene modifier and flyash; the modified expanded pearlite contains expanded pearlite, expanded pearlite modifier and sodium hydroxide; and the cementing material modifier contains polymer adhesive, air entraining and water reducing agent and flyash activator. The preparation process includes preparing foamed modified polystyrene grain, preparing modified expanded pearlite, preparing cementing material modifier, and mixing all the materials in certain proportion. The present invention has the advantages of small heat conducting coefficient, high compression strength, good construction performance, high adhering strength, etc.