123results about How to "Improves strength and stability" patented technology

The invention teaches the use of a surgical instrument for creating and preparing a cavity in a bony intervertebral body. Asymmetrical cutting structures selectively open a cavity which has a relatively large surface area in the vertical direction.

Provided is a one-piece device and method of use of the device to enable a surgeon to bilaterally secure two vertebrae together in a manner that increases the stability and strength of the connection over that previously known in the art. Also provided is a kit including the device and ancillary instrumentation to facilitate the method of the present invention.

A surgical instrument for creating and preparing a cavity in a bony intervertebral body is provided with asymmetrical cutting structures. These asymmetrical cutting structures selectively open a cavity which has a relatively large surface area in the vertical direction. In one embodiment, the cutting structure includes a shearing element that sweeps out a cutting arc that is larger than the instrument delivery area.

This invention relates to an optical device such as a soft or rigid contact lens, intra ocular lens (IOL), ocular insert, or spectacle lens that improves visual acuity by reducing chromatic aberration. Chromatic aberration is reduced by filtering or blocking ultraviolet and high energy blue / violet light below about 455 nm and red and infrared light above about 655 nm. This is accomplished by including in the polymer formulations blue / violet absorbing colorants and ultraviolet light absorbers to filter or block light below about 455 nm; and red absorbing colorants and infrared absorbers to filter or block light above about 655 nm. When these materials are used for wavefront designed lenses, vision better than 20 / 20 is attainable.

Improved methods of preventing the flow-back of particulates deposited in subterranean formations with produced formation fluids are provided. The methods include extruding or injecting a solution or mixture of a particulate solid polymer through a plurality of small diameter ports into an aqueous carrier fluid containing suspended particulate material whereby polymer fibers and strands are formed in the carrier fluid. The polymer fibers and strands mix with the particulate material suspended in the carrier fluid as the carrier fluid is pumped into the subterranean formation. The mixture of the particulate material and the polymer fibers and strands is deposited in the subterranean formation so that the mixture forms at least one permeable pack that prevents the production of formation fines with fluids produced from the formation and prevents the flow-back of the deposited particulate solids, fibers or strands.

An insert bin for use with a rollout type waste container or cart. The insert bin limits the volume of refuse or recyclable material that a customer may deposit in the container. The insert bin is held in place within the interior of a waste cart without the use of separate mechanical components or a press fit. The insert bin instead takes advantage of the lift bar, which already exists on a waste cart providing a bin that is strong and easily attached to a waste container or cart.

The invention discloses a hoisting system and a hoisting construction method for large steel corridor trusses. The hoisting system comprises lifting points, hanging points and jack lifting equipment. The jack lifting equipment is mounted between the lifting points and the hanging points, the lifting points comprise first lifting frames and second lifting frames, the first lifting frames are connected with first main structures, the second lifting frames are connected with second main structures, four embedded steel beams which have equal heights and are parallelly arranged are arranged in the two lifting frames of each lifting point, the lifting points are arranged at the ends of the embedded steel beams, two box-shaped brackets are respectively welded on two sides of each beam body of each lifting point, a jack is mounted on each box-shaped bracket, and each torsion-resistant steel beam is welded between the two corresponding box-shaped brackets on the inner sides of the beam bodies of the corresponding lifting points; the four corresponding hanging points which vertically correspond to the lifting points on a frame are arranged on each steel corridor truss, and steel strands penetrate the box-shaped brackets from top to bottom and are fixed by the aid of anchors after descending and penetrating the hanging points. Each large steel corridor truss can be synchronously lifted by the aid of the four corresponding hanging points during construction. The hoisting system and the hoisting construction method have the advantages that the hoisting system is reasonable in design and easy to operate, and problems of large occupied land areas, heavy dead weights and poor balance in existing large steel corridor truss hoisting procedures can be effectively solved by the aid of the hoisting system and the hoisting construction method.

The invention relates to an in-situ heat regeneration remixing and paving technology of an asphalt pavement, which is characterized by particularly comprising the following steps of 1, construction preparation: 1) mechanical equipment and instrument debugging and maintenance preparation, 2) raw material preparation and technical index detection, and 3) pavement sweeping and guide line scribing, 2, paved antiskid layer asphalt mixture mixing, 3, paved antiskid layer asphalt mixture transport, 4, pavement heating, 5, pavement scarifying, 6, regenerant spraying and stirring, 7, spreading, 8, rolling, 9, traffic access, and 10, technical index check. The curing construction technology of the asphalt pavement can allow waste to be recycled; the original pavement is not required to be milled; the whole endurance and the service life of the pavement are improved and prolonged; the construction speed is high; the traffic access speed is high; the safety and the efficiency of the transport are improved; the cost is saved; occupational health is facilitated; and the technology is environment-friendly and energy-saving.

A support system for tents and other shelters. The support system includes base support members that are in the shape of an arch. These base support members are secured in a desired configuration by an upper support member that is in the shape of a circle or other geometrical shape. A roof support may be added as well. The size and configuration of the shelter may be easily changed by adding or deleting the number of base support members.

A collectable mounting device is configurable to a wall-mounted configuration, and a horizontal support surface (or shelf) mounted configuration. In the wall-mounted configuration, support members are secured together via a fastener through the adjustment slots such that support channels extend in the same direction to support the collectable on a wall. In the shelf-mounted configuration, the support members are fastened together such that the support channels extend in opposite directions, and a tensioning member is inserted between the support members in opposed tensioning member receiving slots to flex the support members away from each other. A packaging method includes stacking the support members and tensioning member to align holes therein; wrapping a label around the stacked support members and tensioning member to align holes in the label and holes in the support members and tensioning member; and inserting a fastener through the aligned holes.

The invention discloses a Stelmor line cooling method of a high-speed wire by taking temperature as a direct-control parameter, comprising the steps of: respectively arranging seven infrared thermo detectors at the first to sixth sections and a gathering coil of the Stelmor line and additionally arranging an environment temperature and humidity meter; additionally arranging a computer, an interface, a data collector, a cable and the like to realize integrally reasonable installation; establishing an assorted software system and forming a standard cooling curve and an actual cooling curve of the wire on the Stelmor line; establishing a Stelmor optimal cooling curve prediction model and a Stelmor line fan air volume set prediction model by using neural network technology; deriving the air volume set value of each fan; and eliminating the difference between the actual cooling curve and the standard cooling curve. By means of the invention, a Stelmor dynamic closed loop type cooling control system is established, the bad influences on the intensity caused by the chemical components and the fluctuation of the environment temperature are eliminated, the structure properties of various wire products can be optimized and the accurate control of the structure properties of the wire products is realized.

A support system for tents and other shelters. The support system includes base support members that are in the shape of an arch. These base support members are secured in a desired configuration by an upper support member that is in the shape of a circle or other geometrical shape. A roof support may be added as well. The size and configuration of the shelter may be easily changed by adding or deleting the number of base support members.

The invention provides a processing mechanism and a processing method of a main body component of a bicycle. The processing mechanism is characterized in that a water needle for injecting water into a cavity is arranged at a main cavity channel of the cavity of a mold, wherein the front part of the water needle is inserted into the cavity, and a material overflowing cavity for containing overflowed materials is communicated with the other end, opposite to the direction of the water needle, of the main cavity channel through an overflowing pipe; a closeable glue feeding member for injecting glue materials is further arranged at the side wall of the main cavity channel. According to the processing mechanism and the processing method, a water-assisted molding process is introduced into an injection molding process, the two processes are organically combined, and high pressure water is utilized for driving the redundant glue materials in a product out of the cavity, so that the component product is very rapid to cool, and pressure maintaining and cooling processes in the normal injection molding process can be omitted; furthermore, the product can be molded at a time, so that the efficiency is greatly improved, meanwhile, the strength is guaranteed, the wall thickness of the component is very uniform, the shape precision is greatly improved as well, the shapes of bicycle components such as bicycle frames having more braches are diversely designed, and the weights of the bicycle components are light.

There is provided an apparatus for rotating and / or displacing a rotor blade of a wind power installation. The apparatus has at least one main body for at least partially embracing the rotor blade with a longitudinal, at least one contact portion for bearing against the rotor blade and at least one main frame for receiving the main body for rotation of the main body about the longitudinal axis and / or for displacement of the main body. The main body has at least one pivotably mounted pivotal portion for engagement at at least one side of the rotor blade.

The invention relates to a prefabricated green building system and a construction method thereof, and belongs to the technical field of building construction industrialization. The prefabricated greenbuilding system includes a bottom plate, the bottom plate includes a plurality of first splicing strips spliced to each other, a first slot and a first inserting strip which are matched with each other are arranged on the opposite faces of every two adjacent first splicing strips, the cross section of each first slot is in a T shape, and each first inserting strip is arranged to be matched with the corresponding T-shaped first slot. The two ends of each of the multiple first splicing strips are provided with first covering strips for covering the two ends of each of the multiple first splicing strips, the cross section of each first covering strip is in a U shape, as the first slots and the first inserting strips are in the T shapes, the multiple first splicing strips are located on the same plane, and the fixing effect of the adjacent first splicing strips is improved. The ends of the multiple first splicing strips are covered with the first covering strips, deviations between the heights of the multiple first splicing strips along stand columns are prevented, and the strength and stability of the prefabricated building system are improved.

The invention discloses a cement-based material carbon sequestration internal curing agent as well as preparation and application thereof. The internal curing agent is modified biochar or a compound of the modified biochar and light aggregate and / or super absorbent resin; and the modified biochar is biochar powdery particles obtained by soaking biochar obtained by pyrolyzing biomass under high-temperature and oxygen-limited conditions in an alkaline solution, drying and grinding. The rich pore structure and the strong hydrophilic performance of the biochar enable the biochar to achieve the internal curing effect of the cement-based material, and the good stability can ensure the long-term and stable development of the performance of the cement-based material; the biochar is sealed in the cement-based material, so that the release of CO2 can be reduced, and the effects of carbon sequestration and emission reduction are achieved; and the biochar modified by the aqueous alkali can make the cement more fully hydrated, and when the biochar is matched with the lightweight aggregate and / or the super absorbent resin for use, the internal curing effect is stronger. After the internal curing agent provided by the invention is doped, the compressive strength and bending strength of the cement-based material at the age of 28 days are improved, and the self-constriction is effectively reduced.

There is provided an apparatus for rotating and / or displacing a rotor blade of a wind power installation. The apparatus has at least one main body for at least partially embracing the rotor blade with a longitudinal, at least one contact portion for bearing against the rotor blade and at least one main frame for receiving the main body for rotation of the main body about the longitudinal axis and / or for displacement of the main body. The main body has at least one pivotably mounted pivotal portion for engagement at at least one side of the rotor blade.

A printed sheet for flooring material to be disposed between a backer layer and a top sheet in a flooring material, wherein: the printed sheet for flooring material comprises at least a urethane type resin layer, a printed layer, and a first composite material layer; the printed sheet for flooring material comprises the urethane type resin layer and the first composite material layer in this order from a side of the backer layer in the printed sheet; and the first composite material layer comprises at least an EMAA resin layer and a first polyethylene resin layer in this order from a side of the top sheet in the printed sheet.

As per the World Health organization (WHO) requirement, the water for drinking purposes should be 100% virus free. This invention reports a polymer impregnated porous substrate membrane and method for the preparation of said membrane for capturing viruses from water. The water filtered through the membrane prepared by the process of the present invention has been tested to be virus free and fully potable based on the tests carried out at the Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India and Sriram Institute for Industrial Research (an ISO 9001 R&D Organization), New Delhi, India. The invention will be of immense use especially for the developing countries and third world countries which are subjected to the problem of unsafe drinking water. This invention is useful also for the developed countries for use in water treatment plants due to highly industrialized nature and existence of a variety of manufacturing units like chemicals and fertilizers.

The invention provides a high efficiency and energy saving fly ash sintered brick making method. The optimization of granularity graduation of shale powder and the introduction of a single layer drying process capable of realizing large-scale continuous production solve the problems of low strength and easy deformation of green bricks in the drying process of ultrahigh-content fly ash sintered bricks, and multi-time mixing, forced mixing, heat insulation time prolongation processes further improve the product stability, so the large-scale industrial production of ultrahigh-content fly ash sintered bricks is successfully realized, the sintered bricks obtained in the invention has high yield, excellent strength and reduced weight, and energy consumed by sintering is effectively reduced. The selection of a kiln top and a hanging structure made of a sintered refractory material improves the acid corrosion resistance of a kiln body, can effectively adapt to the production of high--sulfur high-carbon fly ash sintered bricks, solves the problem of difficult utilization of fly ash from a circulating fluidized bed power plant, and improves the resource utilization rate.

The invention discloses a foam concrete preparation system, which comprises a cement slurry stirring device, a cement slurry delivery device, a high-pressure air delivery device and a foam concrete generating device; a slurry inlet and an air inlet are formed in one end of the foam concrete generating device; a finished product delivery outlet is formed in the other end of the foam concrete generating device; the cement slurry stirring device communicates with the slurry inlet of the foam concrete generating device through a cement slurry delivery pipeline; and the outlet of the high-pressure air delivery device communicates with the foam concrete generating device. The invention also provides a foam concrete preparation method. The foam concrete preparation system and the foam concrete preparation method disclosed by the invention have the beneficial effects: after being mixed with a foaming agent, the cement slurry is mixed with high-pressure air to prepare foam concrete; cells in the foam concrete are evenly distributed; difference between sizes of the cells is not big; difference between density levels is relatively small; water cement ratio is stable; and the problem that a large amount of foam is generated due to the fact that a cement slurry body is mechanically mixed with foam in a traditional method is avoided.

A foldable box includes a floor having a fixed exterior wall extending from the floor in a vertical direction upwards and an exterior wall having a shaft arranged in the base area of the exterior wall. The foldable box further includes a guide opening in the fixed exterior wall area in which the shaft is arranged, the guide opening including an opening section extending basically in the vertical direction through which the shaft may be guided out from the top, and a lateral opening section extending in a lateral direction from an outside of the fixed exterior wall area inwards, in which the shaft may be shifted basically in a lateral direction. A cam arranged in the base area of the exterior wall has a cam contour which is implemented such that the cam contour, when erecting the exterior wall, gets into contact with a contact surface arranged at the fixed exterior wall area such that the shaft is moved inwards in the lateral opening section.

The invention provides an aircraft wing, comprising a fixed wing and a wing tip device at the tip. The wing tip device is configurable between: (i) a locked flight configuration for use during flight and (ii) a ground configuration for use during ground-based operations. The wing further comprises a locking mechanism for locking the folding wing tip device in the locked flight configuration. A rotatable locking member is associated with one of the folding wing tip device and the fixed wing, and a locking pin associated with the other. The rotatable locking member comprises a guide surface to guide the locking pin to a locked configuration, in which the guide surface is shaped such that the locking pin is urged toward the rotation axis of the rotatable locking member by a camming action of the guide surface on the locking pin, thereby preloading the locking mechanism.

Disclosed is a method of preparing a collagenous construct comprising casting a support matrix comprising fibrin and viable collagen-producing cells onto a support material, wherein said cells include human dermal fibroblasts, incubating in situ said support matrix in a collagen-inducing medium thereby, inducing or enhancing collagen production by said cells to form a collagenous construct, and degrading said fibrin, and rendering said collagenous construct free of said viable collagen-producing cells.

A multi-axes exercise machine for strengthening muscles surrounding shoulder joint of a user allows the user a range of motions about lines of motion perpendicular to an arc of circumduction of the shoulder joints. A pair of handholds is suspended from an arcuate guide plate, which extends above a user station. By moving the point of securing the handholds along the length of the arcuate guide plate, the user can re-position the upper ends of the handholds from a location above the user station to a position behind the user station. At all times, the axes of rotation of the handholds are parallel to each other and extend along a plane that contains the axis of circumduction of the user's shoulders. A centerline of each handhold passes through the center of the corresponding glenohumeral joint of the user during the exercise.

The invention belongs to the technical field of sulfur-tolerant shift, and relates to a low-cost sulfur-tolerant shift catalyst and a preparation method thereof. The catalyst is prepared by performing roasting pretreatment on attapulgite clay for obtaining a carrier, then loading active components such as Mo, Co and Mn, and performing kneading, molding, air drying and roasting. The catalyst comprises the following chemical compositions: in percent by mass, 0.5-1% of CoO, 1-2% of MoO, 1-2% of MnO, and the balance attapulgite clay subjected to roasting pretreatment. According to the technical scheme, the purpose of reducing catalyst production cost is realized, the catalyst is good in stability, has the shit, dust-resisting and position-removing functions, helps to provide a relatively effective utilization approach for wide-source low-cost attapulgite clay, and has good economic benefit and application prospect.

The invention discloses a multi-head branch-control 3D printer. Longitudinal guide rails are two guide rails symmetrically distributed along the middle positions of transverse guide rails. Each longitudinal guide rail is symmetrically provided with two printing head mounting sliding blocks, wherein a 3D printing head is mounted on each printing head mounting sliding block. The four 3D printing heads on the two longitudinal guide rails complete printing in four areas of a printing platform. Every time printing of one layer is completed, the printing platform is driven by a power mechanism to rotate by 3.6 degrees, and therefore the printing areas corresponding to the four printing heads are stacked at the joint of the two adjacent printing areas of the lower layer. The four printing heads of the multi-head branch-control 3D printer work at the same time and do not generate interference to one another, and the printing efficiency is greatly improved; and the printing platform is arranged to be rotatable, and therefore after printing work of one layer is completed every time, the printing platform rotates by a certain angle, the printing area of each printing head is changed, staggered stacking between the different printing layers is formed, and the strength and stability of printed products are improved.

A multi-axes exercise machine for strengthening muscles surrounding shoulder joint of a user allows the user a range of motions about lines of motion perpendicular to an arc of circumduction of the shoulder joints. A pair of handholds is suspended from an arcuate guide plate, which extends above a user station. By moving the point of securing the handholds along the length of the arcuate guide plate, the user can re-position the upper ends of the handholds from a location above the user station to a position behind the user station. At all times, the axes of rotation of the handholds are parallel to each other and extend along a plane that contains the axis of circumduction of the user's shoulders. A centerline of each handhold passes through the center of the corresponding glenohumeral joint of the user during the exercise.