284 results about "Cross bridge" patented technology

For the contact opening in advanced IC processing, it becomes critical to monitor the degree of overetching of the thin silicide layer and also to obtain the etching rate of the silicide layer. A method is disclosed which will allow the electrical measurements of the sheet resistance of the exposed (by the contact etch) silicide layer, thus allowing electrical measurements to the integrity as well as the thickness of the remaining silicide layer. A main feature of the disclosed test method is a modification of the conventional van der Pauw test structure, or of the cross-bridge structure (which will allow electrical measurement of the line width, in addition to the sheet resistance information). Contrary to the conventional van der Pauw structure or cross-bridge structure where the contact opening pattern is designed to expose only the specific areas needed for allowing electrical connection to the four measurement pads, the contact opening mask is designed to expose some or all of the van der Pauw or cross-bridge structure, thus allowing the electrical measurement of the degree of silicide overetching during contact opening. The disclosed test method and corresponding structure can be applied as an on-wafer process monitor tool following the complete normal process flow, thus serving as a convenient on-wafer monitor.

The invention discloses a weather-resistance bridge high-strength steel plate and a production method thereof. The weather-resistance bridge high-strength steel plate is prepared from the following components in percentage by weight: less than or equal to 0.11 percent of C, 0.30 to 0.50 percent of Si, 1.10 to 1.35 percent of Mn, less than or equal to 0.020 percent of P, less than or equal to 0.006 percent of S, 0.25 to 0.40 percent of Ni, 0.04 to 0.08 percent of V, 0.025 to 0.045 percent of Nb, 0.010 to 0.040 percent of Alt, 0.45 to 0.70 percent of Cr, 0.25 to 0.40 percent of Cu, 0.02 to 0.08 percent of Mo, 0.015 to 0.025 percent of Ti, less than or equal to 0.015 percent of N and the balance of Fe and inevitable impurities. The invention also relates to a production method of the weather-resistance bridge high-strength steel plate. The steel plate has excellent obdurability matching, high yield strength, high weather resistance and high cold-workability. The steel quality is purer, and the maximum thickness of the steel plate is up to 90 millimeters. The weather-resistance bridge high-strength steel plate is mainly used for manufacturing ocean platform and large sea-crossing bridge structural parts.

Laundry or cleaning composition comprising: (a) a catalytically effective amount, preferably from about 1 ppb to about 99.9%, of a transition-metal bleach catalyst which is a complex of a transition-metal and a cross-bridged macropolycyclic ligand; and (b) at least about 0.1% of one or more laundry or cleaning adjunct materials, preferably comprising an oxygen bleaching agent. Preferred compositions are laundry compositions and automatic dishwashing detergents which provide enhanced cleaning/bleaching benefits through the use of such catalysts.

The invention relates to a chitosan modified alginate hydrogel three-dimensional porous bracket with specific in-vitro degradability and a preparation method thereof. The method comprises the following steps: dissolving sodium alga acid serving as a raw material in phosphate buffer solution; performing amidation reaction of a carboxyl group in the sodium alga acid and an amino group in a cross-linking agent cystamine or dimethyl cystinate under the activation of water-soluble carbodiimide to form a chemically crosslinked hydrogel; performing freeze drying on the hydrogel to obtain a porous bracket material of the hydrogel; and performing surface modification on the porous bracket by using chitosan. In solution of a reducing agent such as cysteine with an appropriate concentration, a disulfide bond in a hydrogel cross-bridge is degraded through a disulfide bond-sulfydryl conversion reaction, so the porous bracket is decomposed and dissolved and disappears. Therefore, the porous bracket can be used as an in-vitro cell culture template material. The hydrogel porous bracket researched by the invention has the characteristics of simple preparation, rich raw material source, low cost and availability. Various physiochemical performances, mechanical strength, degradation rate and surface properties of the bracket material are controllable within a large range.

The invention relates to a construction method for crossing bridge pile foundations by combining bridge underpinning with shield construction, which comprises bridge foundation underpinning construction and shield crossing construction. The bridge foundation underpinning construction method comprises the specific steps of: 1, reinforcement construction for bracing structure of foundation pits and underbridge jet grouting, and 2, underbridge soil excavation and base slab construction; and the shield crossing construction method comprises the specific steps of: 1, piles crossing by direct cutting, and 2, pile removal by explosion. In the method, before the shield crossing construction, a pile foundation of a bridge is underpinned into an enlarged plate type foundation, i.e. a deep foundation of the bridge is converted into a shallow foundation through the conversion of stress systems. After the conversion, all bridge piles which are met by a shield during advancing can be cut and removed without influencing the normal use of the bridge. The bearing capacity of shallow soil in Shanghai is lower so that the soil base below the base plate of the enlarged plate type foundation is obliged to be reinforced and the subsidence deformation of the foundation soil meets the technical standards specified for safety traffic on the bridge.

The invention discloses an overwater building construction platform and an erecting method thereof, as well as a method that uses the construction platform to conduct overwater building construction. The overwater building construction platform comprises a base, a longitudinal beam, a cross beam, a walkway board and a protective barrier. The erecting method of the overwater building construction platform comprises the steps of: steel pipe pile inserting and piling, cross bridging welding, longitudinal beam installing, cross beam installing, walkway board installing, and protective barrier installing. The method using the construction platform to conduct overwater building construction comprises the steps of: construction platform erecting, building pile foundation construction, building beam column construction, construction platform dismantling, and building floor slab construction. For the overwater buildings such as an overwater restaurant, a scenic pavilion and an overwater dock of which the structure bottom elevation above the pipe is higher than the water level elevation, which are located in inland rivers or lakes, the overwater building construction platform and erecting method and use method thereof adopt the cofferdam-free construction scheme, can effectively solve the disadvantages of cofferdam construction, reduces the construction costs, and shortens the construction period.

The invention relates to an adjustable suppression sowing machine used for burying fertilizers through twin axle type stubble-cleaning rotary tillage of stub land operation, and comprises a fertilizer can, a seed box, a fertilizer feeder, a fertilizer-feeding chain wheel, a suspension frame, a large beam, a main gear box, a supplementary gear box, a stubble-cleaning cutter, a rotary-tilling cutter, a planker, a suppressing wheel, a suppressing wheel chain wheel, a suppressing wheel support, a cross-bridge chain wheel, a seed-feeding chain and a fertilizer-feeding chain wheel and the like; the sowing machine adopts a composite oblique-angle furrow opener which can adjust the thickness of the layered seed and fertilizer, and the furrow opener is distributed in a single row with the distance of step-less regulation of 20 to 25cm; the suppressing wheel is whole floating pressure adjustable type; the suppression force is changed by changing the initial compression of the suppressing wheel which is also used as a ground wheel; the cross-bridge chain wheel is arranged on a support shaft of the suppressing wheel; and when the suppressing wheel floats up and down, the tension of the upper chain is not changed. The sowing machine can complete the operations of stubble cleaning, rotary tillage, fertilizer burying, sowing and suppression and the like simultaneously by entering into the field one time.

The invention discloses a descending bracket self-mobile model framework bridge fabrication machine, and relates to a bridge fabrication machine. A middle lifting point cross beam takes place and finishes primary blanking together with a C beam and a traveling trolley system, so that conversion of a stressing system from the lower part to the upper part is realized. The front end of a nose bridge is driven by a front supporting cross beam system to be jacked in place. A bracket is driven by the traveling trolley system to move out transversely, move longitudinally to travel and move transversely to take place. The middle lifting point cross beam and the C beam together finish secondary blanking, a middle lifting point cross beam lifting rod is removed, the mobile die framework moves transversely to open, moves longitudinally to travel, moves transversely to close and jacks in place, and the C beam 7 is removed; and finally concrete is poured. Thus, through stressing system conversion of the bracket, the traveling trolley system, the middle lifting point cross beam and the C beam, the use at construction sites of continuous beams at sites of intertidal zones, canyons, urban viaducts, river-crossing bridges and cross-sea bridges with limited construction conditions and high construction difficulty, where the auxiliary hoisting equipment cannot reach, can be realized.

The invention discloses a system for observing and simulating a wind-wave-flow coupling field for a sea-crossing bridge, and the system comprises a wind observation system, a wave flow observation system, a tide level observation system, a data collection and storage system, and a wind-wave-flow coupling field numerical analysis system. The wind observation system comprises a plurality of wind observation stations, and the wind observation stations are located on the lands of two shores for gradient wind observation. The wave flow observation system comprises a plurality of wave flow observation stations, and the wave flow observation stations are located in nearby water areas for continuous observation of wave surfaces and layered flowing speeds. The tide level observation system comprises a plurality of tide level observation stations, and the tide level observation stations are located in water areas which are located at the place of the bridge and nearby the shores. The observation data of the spatial correlation among wind, wave, ocean current and tide level and the time synchronization and continuous observation data are stored in the data collection and storage system. Based on the above observation data, the wind-wave-flow coupling field numerical analysis system builds a wind-wave-flow coupling field numerical simulation model. The wind-wave-flow coupling field characteristic parameters which are spatially correlated and synchronous in time and act on the bridge are analyzed through combining with historical observation data after verification and correction.

The invention relates to a multi-dimension separating damping bearer used in large crossing structure damping projects. It is made up of sliding steel board, energy consumption steel board, energy consumption bearer core tray, vertical energy consumption machine, inserted bolt, and energy consumption bearer down steel board. It has simple structure, good energy consumption effect, low cost and convenient to construct. It could synchronously insulate shock and consume damping energy while separating external excitation. It could be widely used in large crossing gridding structure and bearer separating damping of large crossing bridge structure.

A chemical vapor deposition reactor system includes one or more tube filaments connected to a bridge, each tube filament being connected to a chuck. The chuck-to-filament connection can include a seed formed on an end of the tube filament, the seed being connected to a protrusion of the chuck, or the filament may be formed directly onto the chuck. For the bridge-to-filament connection, a flat cross bridge or a rectangular bridge is connected with corresponding openings in the filament. Use of these connections can maintain electrical connectivity and thus resistive heating of the tube filaments during operation of the reactor system.

Catalytic systems and methods for oxidizing materials in the presence of metal catalysts (preferably manganese-containing catalysts) complexed with selected macropolycyclic rigid ligands, preferably cross-bridged macropolycyclic ligands. Included are using these metal catalysts in such processes as: synthetic organic oxidation reactions such as oxidation of organic functional groups, hydrocarbons, and heteroatoms, including enantiomeric epoxidation of alkenes, enynes, sulfides to sulfones and the like; oxidation of oxidizable compounds (e.g., stains) on surfaces such as fabrics, dishes, countertops, dentures and the like; oxidation of oxidizable compounds in solution, dye transfer inhibition in the laundering of fabrics; and further in the bleaching of pulp and paper products.

The invention relates to building telescopic devices and provides a modular multidirectional displacement telescopic device which comprises a joint crossing beam and one or more comb plate assemblies, wherein the joint crossing beam comprises a supporting panel, two steel ball supports and at least one cambered surface support seat plate; the two steel ball supports and the cambered surface support seat plate are respectively positioned on the two sides of a structural joint; one steel ball support is a fixed support and the other steel ball support is a bi-directional movable support; the comb plate assemblies are arranged on one side of the joint crossing beam in sequence; adjacent comb plate assemblies are connected through rigid body elastic elements; the invention further discloses a bridge; the bridge comprises the telescopic device. The joint crossing beam of the telescopic device provided by the invention mainly eliminates influences generated by the angle rotation and displacement in the vertical direction and the comb plate assemblies and the rigid body elastic elements can eliminate influences of the bridge stretching and retraction change generated in the direction along the bridge and angle rotation in the cross-bridge direction, three-directional displacement, stretching and retraction, and rotation of the bridge caused by temperature, wind force and loads can be met, a continuous traffic bearing surface can be provided for vehicle running and noise reduction and vibration prevention effects are good.

The invention discloses a combined box girder sea-crossing bridge and a construction method thereof. The sea-crossing bridge comprises bridge piers and combined box girders supported by the bridge piers; each combined box girder is defined by a high-strength concrete top slab, a superhigh performance concrete bottom plate and a pair of superhigh performance concrete webs; internal and external prestress steel beams are arranged in each combined box girder along the longitudinal direction of the bridge; the combined box girder sea-crossing bridge is simple in structure and good in durability. The construction method comprises the following steps of S1, performing construction of pier foundations, bearing platforms and the bridge piers and precasting channel girders; S2, pouring the high-strength concrete top slab to form one section of combined box girder, and tensioning the internal and external prestress steel beams in the combined box girder; S3, hoisting the combined box girder onto a temporary support; S4, mounting permanent supports and casting adjacent sections of wet jointing seams in situ; S5, demolishing the temporary supports and finishing the system conversion; S6, tensioning internal prestress steel beams in adjacent sections of wet joining seams to form a multi-section continuous girder structure; S7, finishing the bridge surface paving and accessory facility construction. The construction method is simple in process and portable and fast in construction.

The invention provides a stayed cable of a cable stayed bridge and a steel girder anchor plate type anchoring structure which relates to a stayed cable and steel girder anchoring connecting structure. Two sides of an anchor plate 1 welded on the top surface of the steel girder are provided with anchor plate stiffening ribs along the direction of the stayed cable. The bottom of the stiffening rib is welded with a head plate of the steel girder. A notch in the middle of the anchor plate is hung with the stayed cable; an anchor pipe which is made of a seamless pipe is embedded into a notch on the upper part of the anchor plate; an anchor backing plate is welded on the lower end of the anchor pipe. The anchor plate is connected with the lower end of an anchor tube. By adopting the invention, the anchor plate is directly welded to the top surface of the steel girder corresponding to a girder web plate to become a main stress unit in the 'anchor plate type' cable beam anchoring structure with great supporting force; the force of a bracing cable first passing through the anchor backing plate on the bottom of the anchor pipe is sent to the anchor pipe and then is sent to the anchor plate from the anchor pipe, the force is finally sent to the steel girder through a welding line, which can meet the requirement of a local stress at the position of an anchor point of the stayed cable; a stiffening rib plate is arranged in the direction of the cross-bridge, the stability is good; the invention has a novel structure, low cost, good economy and the strong spanning capacity of the bridge, thereby meeting the requirements of the bridge construction in China.

The invention discloses a construction method for carrying large-scale box girder by tire type gantry crane, which comprises the following steps: 1): running empty wagons to collimating position: 2) lifting the beam; 3) running the double machine linked lifting beam longitudinally; 4) turning the wheel group by 90 degrees; 5) running the double machine linked lifting beam transversely; 6) placing the beam into the target position. The construction method of the invention for carrying large-scale whole hole prefabricated box girder in box girder fabrication yard is advanced, safe, reliable and efficient, and meets the requirement of large tonnage box girder prefabrication in the sea-crossing bridge tidal flat area in Hangzhou Bay.

A single column or multiple column support structure for car wash installations. Each column is a hollow aluminum extrusion having a cross-section defining a smooth rounded figure such as an oval and a pair of longitudinally continuous external channels formed in opposite sides of the column to provide routes for wires and hoses. Snap in plastic covers are associated with the channels. Interior channels received fastener inserts for assembling the columns to base plates, top plates, cross-bridges and the like. Two or more columns may be assembled in parallel spaced relationship with spacers therebetween.

The invention relates to a construction method of a steel cofferdam used for reinforcing an underwater pier, which utilizes a steel frame hung on a bridge girder body to complete the on-site assembly and the overall subsidence construction of the steel cofferdam used for reinforcing the underwater pier and comprises the following construction steps of: A. designing and processing the steel frame according to the characteristics of the cross section of the pier with need of reinforcement and the characteristics of the steel cofferdam; B. arranging a hanging strip on the girder body at the top of the pier with need of reinforcement and completing the installation of the steel frame; C. using a crane to hoist and hang the cross-bridge directional steel cofferdam block sections block by block on the steel frame; D. using the crane to hoist and hang the bridge directional steel cofferdam block sections block by block on the steel frame; E. completing the connection among the steel cofferdam block sections hung on the steel frame and arranging guide devices on the inner wall of the steel cofferdam; F. arranging a pulley block used for the sinking of the steel cofferdam on the steel frame and the steel cofferdam; and G. starting the pulley block used for the sinking of the steel cofferdam and leading the steel cofferdam to sink in place. The method resolves the difficult problem in the construction of the steel cofferdam used for reinforcing the underwater pier.