80results about How to "Reduce waves" patented technology

A Mach-Zehnder type optical modulator having a ridge structure including a multiple quantum well wave guide layer expending both in a passive region and in an active phase modulation region on which an electrical field is applied, wherein the wave guide layer is selectively grown by a metal organic vapor phase epitaxy with use of dielectric stripe mask patterns having a large width in the active phase modulation region and a small width in the passive region so that the wave guide layer has a band gap wavelength equal to or near a wavelength of an incidental light in the active phase modulation region and a smaller band gap wavelength smaller than the wavelength of the incidental light in the passive region.

An artificial surfing facility for producing a standing wave, with an inclined ramp, to the upper end of which water is conveyed by at least one pump and at the lower end of which the water discharges into a wave pool. A standing wave is easily attained by there being an adjustable guide device in the wave pool at a distance from the bottom end of the ramp in the flow direction as a wave initiator. The wave pool, during operation of at least one pump, has a liquid level which is located above the liquid level of a main pool which surrounds the wave pool and the amount of water in the wave pool offers a defined resistance to the water flowing down the ramp so that the formation and height of the standing wave are influenced by the change of the flow velocity.

The invention relates to the technical field of wave prevention, in particular to an opened wave dissipation component structure comprising an opened component (1), a float unit (2) and a porous opened floating plate (3). The float unit (2) is installed on the opened component (1) to allow the opened component (1) to float on the water surface; the porous opened floating plate (3) is installed in the opened component (1) horizontally and is capable of swinging vertically. By the aid of the structure, the wave force can be reduced greatly, structure is simple, cost is low, and installation and operation are facilitated.

The invention discloses a folding hydrofoil device for an amphibious vehicle. The hydrofoil device is added on both sides of a crawler-type amphibious vehicle body. The device can be simplified into a six-bar linkage with one degree of freedom. When the amphibious vehicle sails in water, the hydrofoil device unfolds under the driving of a hydraulic cylinder, a flat connected on a folding mechanism is used as a hydrofoil to enlarge the upstream area when the amphibious vehicle sails in water, improve the born lifting power of the amphibious vehicle so as to raise the amphibious vehicle as soon as possible, thereby indirect realizing the purposes of reducing the born resistance of the amphibious vehicle and improving navigational speed. When the amphibious vehicle travels on land, the hydraulic cylinder retracts, the folding mechanism is folded, and the flat is parallel to the side edge of the vehicle body and in a vertical state, thus having the function of protecting amphibious vehicle motion devices. The invention has convenient realization technically, and mainly, the folding mechanism, the hydraulic cylinder and the like are added on both sides of the vehicle body, therefore, the structure is simple, the manufacturing cost is low and the speeding effect is significant.

A buffer circuit for shaping a waveform of a logic signal is arranged where a line for a logic circuit included in a recording-head substrate is divided into substantially equal portions, the line having an unignorable parasitic component due to its increased length. Therefore, the recording-head substrate, a recording head using the recording-head substrate, and a recording apparatus including the recording head are capable of minimizing the adverse effects of parasitic resistance and parasitic capacitance in lines even when the length of a heater array is increased.

The invention discloses a backing type multilayer energy dissipation floating breakwater which comprises a plurality of rectangular buoyancy tanks connected sequentially; the rectangular buoyancy tanks are connected with anchor piers through anchor chains; abutting balls are arranged at the peripheries of the rectangular buoyancy tanks; symmetrically arranged inverted-V-shaped backing wave dissipating structures are arranged on and under the rectangular buoyancy tanks; each inverted-V-shaped backing wave dissipating structure comprises a wave facing plate and a wave back plate which are arranged in an inverted-V-shaped manner; one end, far from the rectangular buoyancy tanks, of each wave facing plate is connected with one end, far from the rectangular buoyancy tanks, of one corresponding wave back plate through a hinge shaft; one end, close to one corresponding rectangular buoyancy tank, of each wave facing plate and one end, close to one corresponding rectangular buoyancy tank, of one corresponding wave back plate are anchored to the rectangular buoyancy tanks correspondingly; and wave dissipating holes are formed in the wave facing plates and the wave back plates. The backing type multilayer energy dissipation floating breakwater is simple in structure and good in wave dissipating effect, has the safety, can provide effective shielding for places like aquiculture areas, labor bathing beaches and marinas, and has wide practical prospects.

This publication discloses a harbour plant (10) for storage, loading and unloading of hydrocarbon products at sea, comprising a number of units (9) being mutually placed on the seabed so that a harbour plant is formed. The units (9) are placed independently at a given distance apart in sideways direction and having a front surface along which a vessel is intended to be moored, forming passage(s) for parts of the waves, and being configured to dampen a part of the incoming waves while allowing other parts of the waves and current to pass through the harbour plant. The sideways distances between two neighbouring units (9) is governed by the frequency of the waves to be dampened and the frequencies of the waves allowed to pass in between the units (9). The front surface of one of the units (9) is offset with a distance relative to the front surfaces of two neighbouring in a traverse direction away from said incoming waves, and/or that the units are configured in such way that the width of the passage between two neighbouring units increases or decreases in direction of the wave motion.

The invention relates to the technical field of tank trucks, in particular to a wave prevention device in a tank body of a tank truck, and the tank truck with the wave prevention device. The wave prevention device comprises a shell with a cavity, wherein through holes are formed on the outer surface of the shell; and the shell is spherical, square, cylindrical, conical, triangular pyramid-shaped, or rectangular pyramid-shaped and made of polyamide, thermoplastic resins, plastic or rubber. Compared with the prior art, the wave prevention device has the advantages that waves can be prevented in a three-dimensional space; a wave prevention effect is greatly enhanced; the service life of a wave prevention plate and the safety performance of the tank truck are improved.

The invention discloses a liquid level stabilizing structure for controlling an electrode water level tank in a semi-immersed electrode boiler, and belongs to the technical field of boiler structures.The liquid level stabilizing structure can stably supplement water, reduce waves of the liquid level of an inner cylinder, and then reduce the occurrence rate of zero-sequence current, thereby improving the heat supply effect and prolonging the service life of a boiler, and is simple in structure and convenient to use. The liquid level stabilizing structure comprises a boiler body; a boiler innercylinder fixedly mounted with the boiler body is arranged at the upper end in the boiler body; multiple electrodes are arranged at the top end of the boiler; the electrodes penetrate through part ofthe boiler body to extend into the boiler inner cylinder; an overflow pipe movably connected with the boiler inner cylinder in a sleeving manner is arranged at the middle end of the boiler inner cylinder; the top end of the overflow pipe communicates with the boiler inner cylinder, and the bottom end of the overflow pipe communicates with the boiler body; a water inlet pipe communicating with theboiler inner cylinder is arranged at the bottom end of the boiler inner cylinder; a flow stabilizing separation plate for stabilizing the flowing rate is arranged on the boiler inner cylinder above the water inlet pipe; and a water outlet pipe matched with the water inlet pipe for use is arranged at the bottom end of the boiler body.

The invention discloses a rotary wave absorbing device and a wave absorbing method. The device comprises an anchor block sinking into the sea and a floating body floating in the sea. The floating bodyis fixedly connected to a sliding part which sleeves a fixed rod and can slide up and down along the fixed rod through a rigid rod; a cylindrical wave absorbing rotor is arranged between the floatingbody and the anchor block; two through holes are symmetrically formed in the center of the cylindrical wave absorbing rotor; a rope is threaded in each through hole; one end of the two ropes which are twisted together is fixedly connected to the anchor block while the other end is fixedly connected to the floating body; more than two rigid round bars are arranged in an equally spaced manner circumferentially on the side face of the cylindrical wave absorbing rotor; and a wave breaking ball body is mounted at the tail end of each rigid round bar. The rotary wave absorbing device disclosed by the invention is simple in structure, does not consume energy resources in operation, is good in economical benefit, high in efficiency and free of secondary pollution, and is significant for protecting marine buildings by cutting down waves by means of wave energy.

The invention discloses a trapezoid floating breakwater with waste tires. The trapezoid floating breakwater comprises a breakwater body with the isosceles trapezoid cross section, a wave wall arrangedon the top of the breakwater body, a grid, a truss, multiple waste tires arranged on the truss, heave plates arranged on the bottom of the breakwater body, vertical plates with rounded-corner rectangular openings and an anchoring system used for fixing the breakwater, wherein the grid and the truss are arranged on the front and rear slopes of the breakwater body. By adopting the trapezoid breakwater body and the grid, waves are more likely to be smashed when climbing along the slopes of the breakwater body. By arranging the truss and the waste tires, the resistance of water flow can be increased, and the spreading trajectory of the waves can be disturbed. By arranging the wave wall, the waves are prevented from getting over the breakwater. By arranging the vertical plates with the openings, most waves are rebounded, only a small quantity of waves are allowed to pass, so as to reduce the load of the mooring force, and the integrated safety of the breakwater is improved. By arranging the heave plates, the heaving motion of the breakwater can be reduced, so as to achieve an optimal wave absorbing effect.

The invention discloses an annular floating pipe type water-surface photovoltaic power generation system and a mounting method. The system comprises a platform unit, wherein the platform unit comprises an annular floating pipe group, a bottom bracket, a photovoltaic element support component, a photovoltaic plate and a connecting piece; the annular floating pipe group consists of a plurality of annular floating pipes which are different in curve diameter and are concentrically arranged; the bottom bracket is arranged at the upper side of the annular floating pipe group; the bottom bracket and the annular floating pipe group are fixed through the connecting piece; the bottom bracket consists of main brackets and auxiliary brackets; the main brackets and the auxiliary brackets are orthogonally arranged at the upper side of the annular floating pipe group, and the auxiliary brackets are parallelly arranged between the main brackets; the main brackets and the auxiliary brackets are fixedly connected with the photovoltaic element support component; the photovoltaic plate and the photovoltaic element support component are in embedded snap joint with each other. The photovoltaic power generation system adopts high modularization thinking; the floating pipes are connected into a plurality of concentric annular shapes different in radius, so as to serve as a module main floating body. In such a design, the connecting piece is reduced; the photovoltaic power generation system can be lifted to get into water after being installed on the land, so that the mounting difficulty is greatly reduced, and the overall stability and local stability are increased.

The invention discloses a preliminary recirculating filtering device for sewage treatment and a use method and relates to the technical field of sewage treatment. The device comprises a bracket, wherein a first filter tank and a second filter tank are fixed to the top of the bracket, the side face of the first filter tank communicates with the second filter tank through an overflow pipe, an impurity filter screen is fixed to the top of the internal wall of the first filter tank, an impurity discharging mechanism matched with the impurity filter screen is fixed to one side face of the first filter tank, a dosing pipe penetrates through the other side face of the first filter tank, a supporting plate is fixed to the side face of the first filter tank, and a stirring mechanism is fixed onto the supporting plate. According to the device and the method, through carrying out recirculating precipitation treatment on sewage, chemical-treated sewage can be subjected to precipitation treatment again, so that suspended pollutants are effectively removed from the sewage, and the efficiency of sewage treatment is increased while sewage treatment effect is guaranteed.

A female member of a snap fastener with tape comprising a female button made of synthetic resin which is integrally molded on front and back faces of the tape so as to hold a peripheral edge of an attachment hole of the tape having at least one attachment hole and which has an engaging opening to be engaged with a male button at a substantially center portion of the female button. The female button has at least one mold hole extending in a front and back direction of the tape, and at least one portion of the tape extends to an inside of the female button across the mold hole. At least one cut-out recessed in a diameter direction of the female button is defined in a portion of an inner peripheral engaging face of the engaging opening, and a gate burr is formed at a bottom face of the cut-out. Therefore, in the snap button with tape, and a manufacturing method and a mold of the snap button, in spite of a mold with a simple structure having a small number of pairs of pin members, gate burrs are not exposed on a surface, and the snap button can be easily manufactured without a special step for removing the gates, and the button can be firmly secured to the tape.

The invention relates to a three-stage protective screen ecological wall, and relates to the field of ecological environment engineering. The invention mainly adopts a technical scheme that the three-stage protective screen ecological wall comprises a first protective screen, a second protective screen, a third protective screen and a biomimetic wall body, wherein the bottom of the first protective screen is inserted into submarine mud, and the distance from the top of the first protective screen to the perennial low water level of shallow-water rivers and lakes is 10-20cm; the second protective screen comprises potamogeton crispus and water chestnuts; the bottom of the third protective screen is inserted into submarine mud, the top of the third protective screen is 30-50cm lower than the top of the first protective screen, a predetermined distance is reserved between the third protective screen and the first protective screen, and the second protective screen is arranged between the first protective screen and the third protective screen; the biomimetic wall body comprises a plurality of artificial water plants and a plurality of floating beds in predefined specifications; one end of each artificial water plant is connected with the top of the third protective screen, the other end of each artificial water plant is connected with the corresponding floating bed, and a plurality of floating beds float on the water surface. The three-stage protective screen ecological wall disclosed by the invention can reduce stormy waves of rivers and lakes, and can increase the transparency of water bodies at the same time.

The invention discloses a catamaran. Each sheet body adopts straight line type boat case at the front inner side of a middle, and the curve-shaped boat case transition is adopted at the back inner side of the middle. The catamaran has a small flow inlet angle, in addition, the mutual interference of waves at the inner sides of the sheet bodies and the wave making are little, the boat running resistance is small, and the navigation speed is high. In addition, the space between the two sheet bodies can be small, and the building cost of the catamaran can be greatly reduced.

The invention belongs to the field of ecological support of a water conservancy project, and provides a wave elimination structure and an installation method thereof. According to the technical scheme, steel pipe piles are inserted into an underwater soil layer and are arranged in multiple rows; and a bamboo row is arranged between the adjacent steel pipe piles as a retaining wall and is arrangedabove the mud surface of the underwater soil layer. The wave elimination structure suitable for an area with large waves in the lake district and the installation method thereof are provided, waves are reduced effectively, and economically feasible is realized.

A sensing method for a sensing electrode cluster is provided. The sensing electrode cluster includes a plurality of groups, each comprising a plurality of bars. The sensing method includes scanning each of the groups according to a first scanning sequence, and scanning each of the groups according to a second scanning sequence, and determining a sensing position according to the first position and the second position. The first scanning sequence is different from the second scanning sequence.