40results about How to "Reasonable form" patented technology

It is an object of the invention to provide a droplet ejection apparatus capable of detecting whether or not a missing dot (absence of a pixel) actually occurs on a formed image. The droplet ejection apparatus of the invention has a driving circuit, a reciprocating mechanism and a plurality of droplet ejection heads. Each head includes a cavity filled with a liquid, a nozzle communicated with the cavity and an actuator, and ejects the liquid within the cavity through the nozzle in the form of droplets by driving the actuator by means of the driving circuit to change an internal pressure of the cavity while moving the plurality of droplet ejection heads relatively with respect to a droplet receptor by the reciprocating mechanism so that the ejected droplets land on the droplet receptor. The droplet ejection apparatus includes ejection failure detecting means 10 for detecting an ejection failure of the droplet ejected through each of the nozzles. The ejection failure detecting means 10 detects the ejection failure with respect to a droplet ejection operation of each droplet ejected through the nozzles when the plurality of droplet ejection heads eject the droplets onto the droplet receptor.

A droplet ejection apparatus includes ejection failure detecting means for detecting an ejection failure, counting means for counting the number of ejection failures, and droplet receptor transporting means which carry out discharge and feed of the droplet receptor. The ejection failure detecting means detect the ejection failure with respect to a droplet ejection operation when the plurality of droplet ejection heads eject the droplets onto the droplet receptor. In the case where the number of ejection failures exceeds a predetermined reference value, the droplet ejection apparatus stops the droplet ejection operation and operates the droplet receptor transporting means to discharge the droplet receptor from and feed another droplet receptor to the droplet ejection apparatus to carry out a new and same droplet ejection operation with respect to the fed droplet receptor.

The invention discloses a biocompatible nano-conductive fiber and a preparation method thereof. The biocompatible nano-conductive fiber comprises the following three components in part by mass: 100 parts of polylactic acid, 5 to 10 parts of carbon nano tubes and 1 part of sodium dodecyl sulfate. The three components are prepared into spinning solution by utilizing compound solvents, i.e. chloroform and dimethyl sulfoxide, and an electrostatic spinning device is used to spray to prepare the biocompatible nano-conductive fiber, wherein the fiber diameter is between 200 and 500nm; the carbon nano tubes are coated uniformly with the polylactic acid and are orderly arrayed in the fiber; the surfaces of the carbon nano tubes are subjected to hydroxylation; the mass percentage of hydroxy is 3.06 weight percent; the diameter of the carbon nano tubes is between 10 and 20nm; the length of the carbon nano tubes is 30mum; the purity of the carbon nano tubes is over 95 weight percent; and the specific surface area of the carbon nano tubes is over 200m<2> / g. The invention has advanced and simple process and reasonable formula. The prepared nano-conductive fiber has good biocompatibility and has wide application prospect.

The invention discloses an automatic three-dimensional modeling method based on a contour line of an ore body. The automatic three-dimensional modeling method comprises obtaining a contour line of an ore body, cutting the ore body into Q planes, and obtaining Q contour line sets, where Q is a preset positive integer and the planes are prospecting line profiles or midplanes; obtaining volume data of the ore body according to the contour line sets; extracting a contour surface of the ore body according to the volume data; and generating an ore body three-dimensional model according to the contour surface. The automatic three-dimensional modeling method based on the contour line of the ore body is used for modeling of an ore body with an outer surface contour, and establishing an ore body model automatically through the contour line of the ore body. The method has the characteristics of high computer automation degree, high robustness, high modeling quality and the like.

The invention relates to a female intrauterine contraception apparatus, in particular to a nanometer memory alloy intrauterine contraception device which comprises a memory alloy stent and a composite material body which is connected with the stent. An anal filament can be provided or not. The female intrauterine contraception apparatus is characterized in that the composite material body is compounded and manufactured by contraception activity materials and polymer materials. The contraception activity materials comprise at least one of nanometer copper oxide particles and micron copper oxide particles. The intrauterine contraception device of the invention has the advantages of low abscission rate, high contraception rate, long-term usage, small stimulation on endometrium, insignificant side effects and high usage of the copper, which can equably and steadily release copper ions, is suitable for relatively anoxic environment of uterus and can be placed in a conveyor for long time, etc. In addition, the female intrauterine contraception apparatus has unexpected effect that the composite materials help the memory alloy stent to prevent the abscission, so that the abscission rate of the intrauterine contraception device of the invention is lower.

The invention discloses a test piece component for an III-type dynamic fracture toughness test of a fragile material and a test method. The test piece component comprises a test piece body with grooves and pressing heads propping against the test piece body, wherein the test piece body is a square planer block; the four grooves in same shape are formed in the test piece body; the grooves are respectively located at the positions of two symmetric lines of the test piece body planes on four side walls of the test piece body; the directions of the grooves are along the thickness direction and symmetric line direction of the test piece body; groove openings are extended into the test piece body and penetrated through the upper and lower planes of the test piece body; four pressing heads are in same shape and are in point contact with the test piece body plane; two pressing heads are symmetrically located on a same diagonal line of one lateral plate of the test piece body; the other two pressing heads are symmetrically located on another diagonal line of another lateral plate of the test piece body. According to the test method, the test piece component and a hopkinson pressure bar are used together for testing.

The invention discloses a robotic fish with an independent chain-shaped tail support and a snorkeling method of the robotic fish. The robotic fish with the independent chain-shaped support comprises a head, a middle supporting plate, a tail, a pectoral fin and a tail fin. The head comprises a left head shell, a right head shell, a trapezoid partitioning plate, a pectoral fin rudder support, a pectoral fin rudder, a planar double-rocking-bar mechanism, a pectoral fin shaft, a pectoral fin shaft supporting pat, a battery and a circuit board, and the tail comprises the chain-shaped tail support, a fish skin, a first joint, a second joint, a third joint, a first linkage disc, a second linkage disc, a rudder fixing part and a tail fin clamp. The tail fin comprises a tail fin piece and a tail fin insertion part. The pectoral fin comprises a left pectoral fin piece and a right pectoral fin piece. The robotic fish is beautiful, exquisite and vivid in shape and can be kept in a reasonable form when swimming and turning. The independent chain-shaped tail support is compact in structure, convenient to machine and low in cost and allowed to be independently detached and can keep the robotic fish in the form well when swimming underwater.

The invention discloses a round aluminum alloy pipe concrete compound column, comprising a hollow cylindrical pipe body which adopts an aluminum alloy material, wherein a connecting piece is arranged on the inner wall of the pipe body, and concrete is filled in the pipe body. In the structural style of the round aluminum alloy pipe concrete compound column, due to the passive hoop effect of the aluminum alloy pipe on the concrete, the characters of concrete that the intensity is greatly improved and the ductility is increased under a three-way compression condition can be fully exerted and utilized, so that the intensity and ductility of the structure are greatly improved. The aluminum alloy has good durability without need of preservative treatment or later maintenance, thereby greatly reducing the construction processes and welding work load. Meanwhile, the aluminum alloy has an esthetic structure, has no need of extra renovation and saves the renovation cost, which is an obvious advantage as compared with round steel pipes. The round aluminum alloy pipe concrete compound column has good integrate technical advantage.

The invention discloses a novel atrial septal defect closure device. The novel atrial septal defect closure device comprises a thin film barrier layer, a first stent body, a second stent body, a first fixed connection part and a second fixed connection part. According to the novel atrial septal defect closure device disclosed by the intention, a novel concept of closing atrial septal defects is provided; edges of the atrial septal defect are effectively and tightly clamped by utilizing a clamping force between the closure devices; a phenomenon that an existing closure device commonly has a fixed waist size and the atrial septal defects are closed through tightly clamping the edges of the atrial septal defects is avoided.

The invention discloses a method for detecting wind speed-power abnormal data of a wind generating set. The method comprises the steps of collecting the operation state data of the set, and performing first anomaly detection on the abnormal data according to the set operation state corresponding to the wind speed-power data; performing second anomaly detection on the data passing the state detection according to the constructed normal data main band range; constructing a DBSCAN model, and performing third anomaly detection on the data passing the state detection and the power detection; performing independent anomaly detection on the data above a rated wind speed; and outputting normal data passing the detection. According to the technical scheme, the physical mechanism and data morphological characteristics are formed by integrating the abnormal data to construct the technical scheme, preliminary detection of the wind speed-power abnormal data is achieved, further detection is conducted through the DBSCAN model, final detection of the abnormal data is achieved in combination with a credibility mechanism and detection of the data above the rated wind speed, and therefore, the detection of the wind speed-power abnormal data of the wind generating set has higher accuracy.

The invention provides a throat-clearing and lung-moistening food for smokers. The throat-clearing and lung-moistening food is prepared from tea leaves, radix platycodonis, pericarpium citri reticulatae, radix puerariae, dried radix notoginseng stalks and leaves and bamboo leaf flavone. A preparation method of the throat-clearing and lung-moistening food comprises the following steps: a, extracting the tea leaves, the radix platycodonis, the pericarpium citri reticulatae, the radix puerariae and the dried radix notoginseng stalks and leaves with water; cooling an extracting solution; carryingout centrifugal treatment and filtering; b, taking filtrate and adding the bamboo leaf flavone; adding auxiliary materials and an additive according to a conventional method to prepare a product. Thethroat-clearing and lung-moistening food provided by the invention has remarkable anti-inflammatory effect and anti-oxidization effect; the anti-inflammatory and anti-oxidization capabilities of organisms can be enhanced; the throat-clearing and lung-moistening food has a helping effect on throat discomfort, respiratory system dysfunction or hypofunction of the long-term smokers; the throat-clearing and lung-moistening food has a very good effect of preventing chronic diseases of a respiratory system and diseases of a whole body from occurring. The throat-clearing and lung-moistening food canbe prepared into products including various beverages, tablet candies, gum-based candies, hard candies, solid beverages and the like. The throat-clearing and lung-moistening food has the advantages ofreasonable prescription, strong pertinence, remarkable effect, low cost, diversified product forms and simplicity and feasibility in processing; the throat-clearing and lung-moistening food is especially suitable for the smokers.

The invention discloses an anti-floating anchor rod structure of a raft board. The anti-floating anchor rod structure comprises an anchor rod (1) and is characterized in that two anchor rod ribs (2) having the same length with the anchor rod (1) are symmetrically arranged in the anchor rod (1). The anchor rod ribs (2) are exposed to the outside of the upper portion of the anchor rod (1), short anchor ribs (3) are welded in lateral mode at the upper ends of the anchor rod ribs (2) through the double-face overlapping welding process, and the short anchor ribs (3) are axially parallel to the anchor rod ribs (2). The anti-floating anchor rod structure is simple in structure and ingenious in design, increases the plane operation space of a basic construction stage on the premise that the construction technical requirement of a building base plate is met, and does not need to arrange split head ribs additionally to temporarily support the distributed ribs on the upper surface of the foundation.

The invention relates to a horizontal-axis tidal-current-energy water turbine impeller, belonging to the field of development of ocean-energy renewable sources of energy. According to the water turbine impeller, an included angle (a) between each blade connecting seat and a hub is 6-8 degrees, each blade connecting seat is of a grooved structure, the middle of the hub is of a hollow structure, blades are of hollow streamline structures, a blade connecting block is fixedly connected to the root of each blade, the blade connecting blocks are matched with the blade connecting seats adopting the grooved structures, and the blade connecting blocks are fixedly arranged in the grooved structures of the blade connecting seats through hub locating pins; a rotation control mechanism is arranged in the hollow hub and the blades and is provided with a bearing supporting structure; a controller controls servo motors to control the opening / closing of attached wings sequentially through a driving shaft, a driving shaft gear, a driven shaft gear and a driven shaft according to the revolving speed of the impeller. The water turbine impeller has the advantages that the overall performance of a horizontal-axis tidal-current-energy water turbine is improved, tidal current energy capture capability is improved, the blade form is reasonable, the efficiency is high, and the running is safe, stable and reliable.

The invention provides a compound feed capable of enhancing immunity of goldfish. The compound feed comprises the specific components in parts by weight: 15-20 parts of fish meal, 10-15 parts of shrimp powder, 10-15 parts of corn protein powder, 5-10 parts of soybean meal, 20-25 parts of wheat flour, 10-15 parts of alpha-starch, 15-18 parts of dehydrated carrot granules, 1-2 parts of astragalus polysaccharide, 1-2 parts of lentinan, 20-30 parts of an additive and 20-30 parts of pure water, wherein the additive comprises components in parts by weight: 2-4 parts of arginine, 1-3 parts of glutamic acid, 15-20 parts of casein and 1-3 parts of dicalcium phosphate. The compound feed capable of enhancing immunity of goldfish provided by the invention is comprehensive and rich in nutrients and high in food calling properties, and contains two kinds of traditional Chinese medicine polysaccharide, so that the immune level of the goldfish can be effectively increased; and besides, the raw materials of the compound feed are reasonable in shape, and making and processing are facilitated.

The invention belongs to the technical field of sanitary ware, and particularly relates to a bilaterally-rotating shower room. The bilaterally-rotating shower room is characterized by comprising an upper annular fixing frame and a lower annular fixing frame; annular glass doors located at the two ends are fixed between the upper annular fixing frame and the lower annular fixing frame, a movable glass door located between the annular glass doors is arranged on the lower annular fixing frame and can slide along the upper annular fixing frame and the lower annular fixing frame, the movable glass door and the annular glass doors form a containing cavity after the movable glass door slides to the end of the upper annular fixing frame, a storage mechanism is arranged in the containing cavity, and the two ends of the upper annular fixing frame are provided with first stopping mechanisms capable of stopping the movable glass door from sliding to the ends of the upper annular fixing frame. The bilaterally-rotating shower room has the advantages that the structure is simple, bilaterally-rotating movement can be achieved, storage is convenient, and shower tools or laundry on the storage mechanism is not prone to being wet by water.

The invention relates to a module-assembled rolling writing board, which comprises a main body frame and flexible board surfaces of the writing board, wherein the flexible board surfaces of the writing board are wrapped outside an upper rotating shaft and a lower rotating shaft in circularity. The writing board is characterized in that the main body frame is a left upright post and a right upright post; the upper rotating shaft is hinged with the main body frame; the lower rotating shaft is matched with the main body frame in a rolling way through a connecting set; an assembled substrate consisting of at least two hard substrates is arranged between the upper rotating shaft and the lower rotating shaft and connected with the main body frame in an inserting way or a screwing way; and the writing board is formed by connecting at least two flexible board surfaces which surround a head end and a tail end outside the upper rotating shaft and the lower rotating shaft and are connected into the circularity through a connecting device, and the whole writing board has a module-assembled structure. The writing board makes larger writing equipment realize miniaturized package volume and package form applicable to transportation. The writing board has the advantages of convenient product circulation, wide usage, low cost, long service life, convenient operation, easy maintenance, and no necessary requirements on electric power. During using, air pollution of flying dust to lecturers and audiences can be avoided.

The invention discloses an aluminum alloy pipe concrete composite column with an internal restraining plate. The aluminum alloy pipe concrete composite column is structured as follows: an aluminum alloy pipe forms a column body, sealing covers are fixedly connected to the two ends of the column body, and connecting pieces are arranged on the outer sides, relative to the column body, of the sealing cover; each connecting piece is a square body with a through sidewall, bottom walls are provided with threaded holes, and are fixedly connected with the sealing covers through reinforcing screws, and threaded holes are formed in top walls and the sidewalls, and are connected with composite beams penetrating through the connecting pieces through the reinforcing screws; the restraining plate is integrally formed in the column body, and cavities of the aluminum alloy pipe and the restraining plate are filled with concrete; the aluminum alloy pipe has a thickness b and a pipe wall thickness d, the pipe wall is d, the wall thickness of the restraining plate is t, and in order to ensure the stability of the whole structure, d=(1 / 25-1 / 40)*b and t=(1 / 40-1 / 50)*b. The aluminum alloy pipe concrete composite column with the internal restraining plate is high in structure bearing capacity and durability, easy to construct, attractive in design, light in weight and low in cost, and has high economic value and practical value.

A throat-clearing food for smokers, which consists of tea leaves, platycodon grandiflorum, tangerine peel, kudzu root, dried notoginseng stems and leaves, and bamboo leaf flavonoids. Its preparation method: a, tea leaves, platycodon root, tangerine peel, kudzu root, dried notoginseng stems and leaves, water extraction, cooling of the extract, centrifugation, and filtration; b, taking the filtrate and adding bamboo leaf flavonoids, adding auxiliary materials and additives according to conventional methods for the product. The present invention has obvious anti-inflammation and anti-oxidation effects, can enhance the anti-inflammation and anti-oxidation ability of the body, is helpful for long-term smokers' throat discomfort, abnormal or decreased function of the respiratory system, and prevents chronic diseases of the respiratory system and the whole body. The occurrence of disease also has a good effect. The invention can be made into various beverages, tablet candies, gum-based candies, hard candies, solid beverages and other products. The invention has reasonable composition, strong pertinence, remarkable effect, low cost, various product forms, simple and easy processing, and is a throat-clearing food especially suitable for smokers.

The invention relates to a module-assembled rolling writing board, which comprises a main body frame and flexible board surfaces of the writing board, wherein the flexible board surfaces of the writing board are wrapped outside an upper rotating shaft and a lower rotating shaft in circularity. The writing board is characterized in that the main body frame is a left upright post and a right upright post; the upper rotating shaft is hinged with the main body frame; the lower rotating shaft is matched with the main body frame in a rolling way through a connecting set; an assembled substrate consisting of at least two hard substrates is arranged between the upper rotating shaft and the lower rotating shaft and connected with the main body frame in an inserting way or a screwing way; and the writing board is formed by connecting at least two flexible board surfaces which surround a head end and a tail end outside the upper rotating shaft and the lower rotating shaft and are connected into the circularity through a connecting device, and the whole writing board has a module-assembled structure. The writing board makes larger writing equipment realize miniaturized package volume and package form applicable to transportation. The writing board has the advantages of convenient product circulation, wide usage, low cost, long service life, convenient operation, easy maintenance, and no necessary requirements on electric power. During using, air pollution of flying dust to lecturers and audiences can be avoided.

The invention relates to a numerically-controlled planar drill for processing round and square plates. The drill comprises a lathe bed component and is characterized in that a working table component is mounted on the lathe bed component; a gantry component which can move in the left-right direction of the lathe bed component is mounted on the lathe bed component; a movable sliding table which can move in the fore-and-aft direction of the lathe bed component is mounted on the gantry component; a drill bit component is mounted on the movable sliding table; two ends of the gantry component areconnected with a left bracket and a right bracket of the lathe bed component; the left bracket and the right bracket are mounted on a first linear guide rail pair; a first servomotor is mounted on the lathe bed component; the power output end of the first servomotor is connected with the gantry component through a first ball screw pair; a second linear guide rail pair arranged in the fore-and-aft direction of the lathe bed component is arranged above the gantry component; and the movable sliding table is arranged on the second linear guide rail pair. The drill provided by the invention adopts multiple stations, can process single and multiple pieces and is suitable for overlapping processing of multiple pieces.

The invention discloses a UCPS-based CPS evaluation fine allocation system. The system comprises a machine-set dynamic cataloging module, a machine-set UCPS fine electric quantity computing module, a UCPS fine amount computing module, a single-machine-set UCPS fine allocation factor computing module and a monthly single-machine-set CPS fine allocation amount computing module which are connected in series in sequence, and further comprises a UCPS fine allocation amount computing module and a CPS monthly fine amount and UCPS allocation amount computing module which are connected between the machine-set dynamic cataloging module and the monthly single-machine-set CPS fine allocation amount computing module. The invention combines the UCPS standard and the CPS standard, utilizes the scientific index to quantize the main proportion of the single machine-set to the CPS total fine amount, calculates the CPS fine allocation amount, has a simple and reasonable structure, can effectively identify and quantize the influence of all the electric generating sets on the area control performance standard fine amount, fully develops the resources at the power supply side for adjustment and improves the control performance of the electric network.

The invention discloses a robotic fish with an independent chain-shaped tail support and a snorkeling method of the robotic fish. The robotic fish with the independent chain-shaped support comprises a head, a middle supporting plate, a tail, a pectoral fin and a tail fin. The head comprises a left head shell, a right head shell, a trapezoid partitioning plate, a pectoral fin rudder support, a pectoral fin rudder, a planar double-rocking-bar mechanism, a pectoral fin shaft, a pectoral fin shaft supporting pat, a battery and a circuit board, and the tail comprises the chain-shaped tail support, a fish skin, a first joint, a second joint, a third joint, a first linkage disc, a second linkage disc, a rudder fixing part and a tail fin clamp. The tail fin comprises a tail fin piece and a tail fin insertion part. The pectoral fin comprises a left pectoral fin piece and a right pectoral fin piece. The robotic fish is beautiful, exquisite and vivid in shape and can be kept in a reasonable form when swimming and turning. The independent chain-shaped tail support is compact in structure, convenient to machine and low in cost and allowed to be independently detached and can keep the robotic fish in the form well when swimming underwater.

The invention discloses an active and passive combined evaporation cooling system for a data center. The system includes a dew point indirect evaporative cooling air conditioning unit arranged in thedata center, and a fresh air inlet, a secondary air outlet and an air outlet that are formed in the wall of the data center; the dew point indirect evaporative cooling air conditioning unit is connected with the fresh air inlet through a fresh air pipe, the dew point indirect evaporative cooling air conditioning unit is further connected with the secondary air outlet through a secondary air outletpipe, and the secondary air inlet pipe is connected with an air return pipe; a plurality of server cabinet groups are arranged in the data center, each server cabinet group is composed of two servercabinets, and the air outlet sides of the two server cabinets are oppositely arranged, and a closed heat passage is formed between the air outlet sides of the two server cabinets, and the closed heatchannel is connected with the air outlet through an outlet pipe. According to the evaporation cooling system, the temperature and humidity in the machine room can be effectively adjusted at low energyconsumption.

The invention discloses an electronic belt scale frame which comprises an outer framework and an inner framework, wherein one end of the inner framework is connected with one end of the outer framework through a shaft and a bearing; and the other end of the inner framework is connected with a support frame fixed at the other end of the outer framework through two suspension type tension sensors. Therefore, the electronic belt scale frame is simple and stable in structure, reliable in operation and convenient to use; and by means of the suspension type tension sensor, the electronic belt scale frame is reasonable in type and structure, has a good force transmission system, can overcome occurring of the original horizontal force, and is high in weighing accuracy; the electronic belt scale frame adopts the integrated inner framework, is high in strength, good in rigidity and small in flexibility, deflection and deformation; the electronic belt scale frame is simple in structure, convenient to manufacture and maintain, low in cost, light in weight, small in dust stratification horizontal area, wide in field installation adaptability and convenient and easy in field installation and debugging.

The invention provides a self-locking anchoring fiber anchor rod and a construction method and belongs to the technical field of rock and soil anchoring. The self-locking anchoring fiber anchor rod is composed of a fiber bag, a base plate and a euphroe. The fiber bag is internally provided with a locating rack in a sleeving mode. The locating rack extends into the bottom of the fiber bag. The fiber bag is tightly clamped and fixed to the locating rack from the outer side of a cylinder through a metal clamp. According to the euphroe, a central tube is arranged in a support in a sleeved mode; ratchets are mounted on the left side and the right side of the central tube respectively and located at the outer side of the support; racks matched with the ratchets are hinged to the support through shaft pins; a rope hook is fixed to the central tube; a round hole is formed in one end of the central tube and located at the outer side of the support, and a thrust rod is inserted into the round hole. A grout body is grouted into the fiber bag through a sleeve valve under the action of pressure, the fiber bag expands, the grout body coagulates, solidifies and is anchored in a stable layer; the euphroe is fixed to the base plate through bolts, and the rope-form fiber bag is bundled to the rope hook of the euphroe. The self-locking anchoring fiber anchor rod is light in structure, anti-corrosive, high in durability and quick and convenient to construct and solves the problems of traditional FRP bar tensioning and anchoring, and prestress compensation is convenient.

The invention discloses a multifunctional cutting machine comprising a frame, a worktable, a seat, a lifting mechanism, a power assembly, and a saw blade, wherein the worktable is arranged on the front portion of the frame; the seat is arranged on the worktable; the saw blade is disposed on the power assembly; the lifting mechanism includes a lifting guide seat, a lifting guide pillar, and a lifting power device, and is characterized in that a vertical guide pillar hole is disposed in the lifting guide seat, the lifting guide seat is disposed on the frame, the lifting guide pillar is disposedin the guide pillar hole, and the power assembly is disposed on the upper portion of the lifting guide pillar, the lifting power device is disposed between the lifting guide seat and the power assembly, the lifting guide pillar and the power assembly are vertically lifted and lowered by the lifting power device, and the saw blade disposed on the power assembly moves from top to bottom so as to cuta material on the surface of the worktable. The multifunctional cutting machine has various forms, and is versatile and powerful in functions.

The invention discloses a test piece component for an III-type dynamic fracture toughness test of a fragile material and a test method. The test piece component comprises a test piece body with grooves and pressing heads propping against the test piece body, wherein the test piece body is a square planer block; the four grooves in same shape are formed in the test piece body; the grooves are respectively located at the positions of two symmetric lines of the test piece body planes on four side walls of the test piece body; the directions of the grooves are along the thickness direction and symmetric line direction of the test piece body; groove openings are extended into the test piece body and penetrated through the upper and lower planes of the test piece body; four pressing heads are in same shape and are in point contact with the test piece body plane; two pressing heads are symmetrically located on a same diagonal line of one lateral plate of the test piece body; the other two pressing heads are symmetrically located on another diagonal line of another lateral plate of the test piece body. According to the test method, the test piece component and a hopkinson pressure bar are used together for testing.

The invention discloses a robotic fish with an independent ring tail support and a snorkeling method of the robotic fish. The robotic fish with the independent ring tail support comprises a head, a middle supporting plate, a tail, a pectoral fin and a tail fin. The head comprises a left head shell, a right head shell, a trapezoid partitioning plate, a pectoral fin rudder support, a pectoral fin rudder, a planar double-rocking-bar mechanism, a pectoral fin shaft, a pectoral fin shaft supporting part, a battery and a circuit board, and the tail comprises the ring tail support, a fish skin, a first joint, a second joint, a third joint, a first linkage disc, a second linkage disc, a rudder fixing part and a tail fin clamp. The tail fin comprises a tail fin piece and a tail fin insertion part. The pectoral fin comprises a left pectoral fin piece and a right pectoral fin piece. The robotic fish is beautiful, exquisite and vivid in shape and can be kept in a reasonable form when swimming and turning. The independent ring tail support is good in adaptability and low in cost and allowed to be independently detached and can keep the robotic fish in the form well when swimming underwater.

The invention provides a self-locking anchoring fiber anchor rod and a construction method and belongs to the technical field of rock and soil anchoring. The self-locking anchoring fiber anchor rod is composed of a fiber bag, a base plate and a euphroe. The fiber bag is internally provided with a locating rack in a sleeving mode. The locating rack extends into the bottom of the fiber bag. The fiber bag is tightly clamped and fixed to the locating rack from the outer side of a cylinder through a metal clamp. According to the euphroe, a central tube is arranged in a support in a sleeved mode; ratchets are mounted on the left side and the right side of the central tube respectively and located at the outer side of the support; racks matched with the ratchets are hinged to the support through shaft pins; a rope hook is fixed to the central tube; a round hole is formed in one end of the central tube and located at the outer side of the support, and a thrust rod is inserted into the round hole. A grout body is grouted into the fiber bag through a sleeve valve under the action of pressure, the fiber bag expands, the grout body coagulates, solidifies and is anchored in a stable layer; the euphroe is fixed to the base plate through bolts, and the rope-form fiber bag is bundled to the rope hook of the euphroe. The self-locking anchoring fiber anchor rod is light in structure, anti-corrosive, high in durability and quick and convenient to construct and solves the problems of traditional FRP bar tensioning and anchoring, and prestress compensation is convenient.

The invention provides an object fixing device for cars. The object fixing device is characterized by comprising a bracket fixed on a vehicle body, and an elastic bandage connected with the bracket, wherein the bracket consists of a base part used for supporting objects, and a backrest part vertical to the base part. The device is simple in structure, is capable of fixing bottled objects effectively so as to avoid the abnormal sound or damage caused by rolling of bottled objects when the car runs, and the occupied space is small, so that the device is widely suitable for the object fixing filed of cars.