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.

The invention provides a triangular-section power draft-increase ballast-free semi-submersible conveying ship. The ship comprises a main ship body, a power draft-increase system and a control system. The main ship body comprises an upright rounded-triangular-cross-section parallel body, a flow inflow section and a flow removal section, the upright rounded-triangular-cross-section parallel body is designed in an optimized mode to adapt to underwater near-surface sailing, the flow inflow section and the flow removal section downward incline to a blunt bow and a conical stern respectively. The power draft-increase system is a multi-wing combined system, comprises board side fixed negative lift horizontal wings, a controllable main lift adjusting wing combined appendage and stern lift adjusting horizontal wings, and is used for adjusting vertical force of the ship body under various loading conditions to achieve the optimal semi-submersible draft. The control system comprises a variable wing type section forward-leaning upright column, an inward-leaning light invisible upper construction part, shallowly submerged piercing hydrofoils and a stern controllable vertical wing, and is used for controlling the course and stability of the ship body. The ship is novel in type and high in subsequent expansion performance, is a tool for navy land battle force hiding, quick delivery and emergency transport of special civil materials in a route, and has certain research and application value in military and civil fields.

The invention discloses a folding hydrofoil device of a running system of an evasive crawler-type amphibious vehicle. When the amphibious vehicle sails in the water, the hydrofoil device is driven by a hydraulic cylinder to be unfolded, and a flat plate connected with a folding mechanism is used as a hydrofoil, thereby increasing the upstream area of the amphibious vehicle travelling in the water, improving the lift borne by the amphibious vehicle, enabling the amphibious vehicle to rise from the water as quickly as possible, indirectly reducing the resistance borne by the amphibious vehicle, and improving the cruise speed. When the amphibious vehicle travels on the ground, the hydraulic cylinder retracts, the folding mechanism is retracted under the auxiliary action of a spring, and the flat plate is in an upright state parallel with the side of the vehicle body and can indirectly protect the mobile devices of the amphibious vehicle. Because a connecting rod between the hydraulic cylinder and a beam is eliminated, the evolution mechanism can prevent the mobile devices such as the crawler and the like from generating interference and can meet the requirement of compact assembly of the running devices of the amphibious vehicle.

The invention discloses a high-precision detection device for river discharge. The key point of the technical scheme is as follows: the high-precision detection device for river discharge comprises acurrent meter, the current meter comprises a detection head, as well as a reference frame fixedly installed in a cross section of a river, a detection platform is arranged above the reference frame, afirst floating plate is arranged in the reference frame below the detection platform, the width of the first floating plate is the same as an inner-frame width of the reference frame, a connecting piece is arranged between the detection platform and the first floating plate, and the first floating plate can adaptively move along the vertical direction according to the water level in the river; and the detection head is located below the first floating plate. Through the detection device, the personnel can accurately calculate the cross-sectional area of river water, and the detected river discharge is relatively accurate; by disposing the first floating plate, a mesh plate and a second floating plate, water surface waves can be reliably reduced, and the surface energy of the water is relatively flat, and the accuracy of measuring the cross-sectional area of the river is improved; and by disposing multiple detection heads, comprehensive detection can be performed on the flow velocitiesat various locations on the cross section of the river, and the accuracy of measuring the flow velocity of the river is improved.

The invention provides a back coating process of a titanium anode plate for producing electrolytic copper foils, and belongs to the technical field of the electrolytic copper foils. The back coating process comprises the following steps of (1) selecting materials and carrying out annealing; (2) pickling; (3) coating; (4) drying and sintering; (5) cooling and annealing to obtain a titanium anode plate semi-finished product A with a back coating; (6) coating again, drying and sintering to obtain a titanium anode plate semi-finished product B with a back coating; and (7) repeating the step (6) one to ten times, and cooling to room temperature to obtain a finished product. According to the coating process, the generation of wave folding of the electrolytic copper foils is reduced, the currentdensity is uniform, the polarization reaction speed of each part of the titanium anode plate is uniform, the service life of the titanium anode plate is prolonged, the contact resistance of the titanium anode plate is reduced, the electricity is saved, and the energy consumption is reduced.

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 floating breakwater, in particular to a floating plate type breakwater elastically supported. The breakwater comprises floating plates of horizontal structures, rubber springsupports, vertical guide rails and mooring systems, and the floating plates are connected to rubber springs; horizontal plates of an upper layer are used for preventing high waves, and horizontal plates of a middle layer are used for reducing waves of different cycles; horizontal plates of a lower layer are used for protecting the breakwater, and the horizontal plates of each layer reciprocate inthe axial direction of the guide rails under the spring supports; and the energy dissipation efficiency is improved while the stress is reduced, and the floating breakwater is fixed to designated waters through the mooring systems. According to the novel breakwater, the protective effect of deep sea waves can be improved effectively, and especially the novel breakwater has good protective effectfor medium and long-period waves; and the safe operation of offshore structures and facilities behind the breakwater is ensured, and guarantee is provided for construction of ocean engineering and development of marine resources.

The present invention relates to one kind of floating tank ship, which includes one hull, floating tanks below the hull to support the hull and connecting units for connecting between the hull and the floating tanks detachably. During running, especially running in high speed, the floating tank ship is subjected to relatively small resistance, and this causes less waves and high running speed. At the same time, the floating tanks are subjected to great flotage and divided into several independent compartments, so that the floating tank ship has less sink risk and high safety.

The invention discloses a reversely bevelled flip bucket, which consists of a bottom plate and side walls erecting along two sides of the bottom plate and is characterized in that: length of one side wall and the bottom plate on one side of a mountain massif is shorter than that of the side wall and the bottom plate on the side close to a river so that the edge of the bottom plate positioned between two side wall end heads forms a bevel edge. The side walls of the bevelled flip bucket can be straight lines or curves; the bottom plate can be a curved surface or a warped surface with constant curvature; and the bottom plate can also be equal or unequal in width. The reversely bevelled flip bucket provided by the invention can diminish an included angle between water flow and the opposite bank under the action of the side wall close to one side of the river so as to weaken the impact the water flow on the opposite bank of the river, can increase the distance from the underwater water flow close to one side of the mountain massif to the opposite bank so as to increase energy consumption, and enables the water flow close to one side of the river to directly flow to the river bottom and form a water wall in the centre of the river, wherein the water wall prevents another part of the water flow flowing to the opposite bank so that flushing of the water flow to the opposite bank of the river can be weakened and the safety of a levee of the opposite bank is guaranteed.

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.

A multilayer casing device for attenuating electromagnetic waves is made of at least one textile material, at least one metal material. The device is made up of a stack provided with at least, consecutively from the inside to the outside: a first diamagnetic metal material layer at least partially made of copper, a second textile layer at least partially made of wool or cotton, a third layer made of a ferromagnetic material, and a fourth textile layer at least partially made of wool and cotton. The device is also made up of a complementary stack of identical layers (the second textile layer, the third ferromagnetic layer and the fourth textile layer) extending symmetrically in relation to the first copper layer.

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.

The invention provides an offshore electrical platform pile-sleeve foundation structure with an anti-caisson structure. The offshore electrical platform pile-sleeve foundation structure comprises a jacket and a sleeve, an anti-caisson is arranged at the bottoms of the jacket and the sleeve, a grouting system is arranged between the jacket and the sleeve, a grouting connecting section is arranged on the sleeve, a steel bar reinforcing structure is arranged at the bottom of the grouting connecting section and in the sleeve, and a passive grouting separator is arranged below the steel bar reinforcing structure; and the anti-caisson comprises a top plate on the top layer, a panel is welded to the lower portion of the top plate, a plurality of apron boards are welded to the periphery of the topplate, and a plurality of rib plates are arranged on the inner sides of the apron boards at intervals. According to the offshore electrical platform pile-sleeve foundation structure, the stability ofthe offshore electrical platform foundation during bottom setting can be effectively improved, the bearing capacity of the grouting connecting section and a pile foundation of the platform structurein the bearing strength limit state is guaranteed, and a new thought is provided for offshore electrical platform design.

The invention provides a see-through pile plate combined type sea inlet road structure which comprises reinforced concrete tubular piles, reinforced concrete baffle plates, ripraps, cushion caps and faceplates. The see-through pile plate combined type sea inlet structure is characterized in that the reinforced concrete tubular piles are transversely arranged with one another side by side, each row of the reinforced concrete tubular piles comprises at least two reinforced concrete tubular piles, every two rows of the reinforced concrete tubular piles are taken as a roadbed buttress, the reinforced concrete tubular piles of each roadbed buttress are symmetrically arranged with one another, the lower end of each reinforced concrete tubular pile is inserted into a mud surface of a sea bottom, the upper end of each reinforced concrete tubular pile is embedded into a circular groove of the bottom surface of the cushion cap, each reinforced concrete baffle plate which is inserted into the mud surface of the sea bottom is arranged on the inner side face of each roadbed buttress to form a rectangular space, and the rectangular space is internally filled with the ripraps; the faceplates are arranged on the cushion caps among the roadbed buttresses, two ends of the faceplates are embedded in the middle of the cushion caps, and water passing culverts are formed between the faceplates and the mud surface of the sea bottom; and the roadbed buttresses are symmetrically designed in the shape of a horizontal line, and the heights of the roadbed buttress which are exposed out of the water surface are on one horizontal line. After the see-through pile plate combined type sea inlet structure is adopted, the sea inlet road quick construction problem and the ground movement reuse problem can be solved.

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.

Particulates are removed from a gas stream by contact with a liquid. The gas stream is conveyed through an inlet channel, towards a liquid reservoir which is located below a perforated sheet. Gas flowing through holes in the sheet creates a pressure drop between the inlet channel and an outlet area above the sheet. This pressure drop draws liquid up from the reservoir, through a relatively narrow liquid transfer channel, so that the liquid covers the sheet. Gas flowing through holes in the sheet therefore encounters a layer of liquid located immediately above the sheet. Particulates in the gas are captured by the liquid in this layer. The device requires no pump for moving the liquid through the system, the liquid being transferred solely as a result of the pressure drop induced by the flow of gas.

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.