174results about How to "Reduced aesthetics" patented technology

The present invention includes an electronic cymbal assembly including a hi-hat clutch for mounting a hi-hat to a hi-hat stand post; a top cymbal; a self dampening trigger system attached to the underside of the top cymbal; a bottom cymbal; an input jack box mounted to the underside of the bottom cymbal; and a hi-hat cymbal mounting post. The cymbal assembly may be mounted using a magnetic ring configuration or a threaded pole configuration.

The invention relates to a roadside parking device without road occupancy, which is characterized in that a lifting parking platform is movably arranged on a single column provided with a vertical guide rail face and driven by a screw rod / nut combined or gear / rack combined lifting device and does a vertical lifting motion along the guide rail face of the column. By adopting the basic structures of single column support and vertical lifting of the parking platform, parking positions can be increased by smartly utilizing greenbelt spaces at roadsides of narrow streets and residential areas and around houses and the like, therefore, the parking without road occupancy is realized, the contradictions of roadside parking and road smoothness as well as the struggle for land with parking and greening are resolved, the dew absorption of plants at night can not be influenced, the adverse influence on the normal greening growth can not be brought, the high-suspension parking security is good, and scratching and stolen damages can be greatly reduced. The threaded-fit screw rod / nut lifting device not only has simple lifting structure and low cost, but also has good parking safety supportability. The parking device has simple structure, low cost and convenient setting.

The invention relates to the field of vibration control of a civil engineering structure, in particular to an assembled type current vortex tuned mass damper for a pedestrian bridge and a manufacturing method. A TMD rigidity element is formed by helical compression springs; TMD tuned mass blocks are connected in series through a plurality of steel plates, so that the maneuverability of the tuned mass damper which is artificially assembled is guaranteed; a TMD damping element is formed by a permanent magnet current vortex damper of which the magnetic circuit is optimized, is arranged in a tuned mass block steel plate chamber, and is compact in structure; the distances between permanent magnets fixed on a bottom plate and mass block steel plates are adjusted, so that the adjustment of TMD frequencies is realized. In addition, the integrated design of TMD is slender bar-shaped, the length of the TMD in the span direction of the pedestrian bridge is large, the lateral length of the TMD in the lateral width of the pedestrian bridge is small, and the TMD is conveniently mounted at railings of the pedestrian bridge, so that the influence of the TMD on the function and the appearance of the pedestrian bridge is reduced. The vertical current vortex damper TMD disclosed by the invention has the prominent characteristics of being compact in structure, easy in field assembly, good in durability, convenient to mount at the railings of the pedestrian bridge and the like, and the frequencies can be regulated continuously.

An electrical contact for use in an electrical connector, includes a contact body made of metal and having a contact head, a contact tail, and an anti-wicking region disposed between the contact head and the contact tail arranged to prevent wicking of a fusible material past the anti-wicking region in a direction toward the contact head. The anti-wicking region is defined by one of a laser-ablated portion, a laser marking material, a UV marking material, and an ink that is permanently disposed on the contact body.

The invention provides a plastic car seat back skeleton which is made from plastic material through one-step forming and is provided with a shell extending along the circumference, wherein the lateral section of the shell is n-shaped, the inside of the shell with the n-shaped section is provided with honeycomb reinforcing ribs; the position which bears larger stress, of the shell with the n-shaped section has larger thickness; and the honeycomb reinforcing ribs on the whole skeleton can have different height and / or thickness. The car seat back skeleton of the invention is made from plastic instead of metal so that the weight of the car seat back skeleton can be greatly reduced; in addition, the corrosion resistant of the plastic material is better so as to prolong the service life of the product.

The invention discloses a making method for loofah sponge cloth shoes. Making of the loofah sponge cloth shoes can be completed through the steps of early-stage preparation, cloth board making, sole making, sole smoking and upper sewing. The making method has the advantages that the loofah sponge cloth shoes can improve circulation capacity of blood of the feet, dispel pain in the feet, remove fatigue, kill bacteria on the feet, remove dermatophytosis, reduce breeding of bacteria, prevent foot diseases, prevent foot odor, simulate foot acupoints, achieve a massage effect, dredge the channel, improve the organ functions of the body and achieve a healthcare effect; besides, no chemical substance is adopted in the making process, and therefore the loofah sponge cloth shoes are ecological and environmentally friendly, will not harm the body, can protect the health of people and is good in ecology and healthcare effect and easy to popularize.

A method of forming an electrical contact for use in an electrical connector that includes a contact body made of metal and having a contact head, a contact tail, and an anti-wicking region disposed between the contact head and the contact tail arranged to prevent wicking of a fusible material past the anti-wicking region in a direction toward the contact head. The anti-wicking region is defined by one of a laser-ablated portion, a laser marking material, a UV marking material, and an ink that is permanently disposed on the contact body.

An electrical contact for use in an electrical connector, includes a contact body made of metal and having a contact head, a contact tail, and an anti-wicking region disposed between the contact head and the contact tail arranged to prevent wicking of a fusible material past the anti-wicking region in a direction toward the contact head. The anti-wicking region is defined by one of a laser-ablated portion, a laser marking material, a UV marking material, and an ink that is permanently disposed on the contact body.

The invention discloses an ultralow-temperature heat source power generation and heat energy transfer system. The ultralow-temperature heat source power generation and heat energy transfer system comprises a positive cycle formed by connecting an evaporator, a compressor, an expansion machine, an engine, a condenser, a working medium pump and an expansion valve. According to the essence of the application of the ultralow-temperature heat source power generation and heat energy transfer system in the field of air conditioners, in summer, an indoor fan coil absorbs solar energy in air, part of heat energy is converted into electricity through the circulation of the system, and the other part of the heat energy is transferred and stored in the underground soil and underground water; in winter, the heat energy stored i the underground soil and the underground water is taken out, and heating is conducted. Namely, the solar energy is converted into electricity in summer and heat energy in winter, and accordingly a renewable environment-friendly energy utilization mode is achieved. The system is a revolutionary product of a central air conditioning system. The total manufacturing cost of the system is equal to that of a ground source heat pump central air conditioner, and the total power consumption of the system is 23% of that of a ground source heat pump heating-cooling central air conditioner and 14% of that of an ordinary heating-cooling central air conditioner. The system makes a great contribution for saving energy for public buildings.

The invention relates to a building curtain wall stretching aluminum veneer. The building curtain wall stretching aluminum veneer comprises a base plate and an outer veneer, and the base plate is connected with the outer veneer through a connecting piece. The problems that when dust cleaning is carried out on a large aluminum veneer curtain wall at present, a worker can conveniently clean the outer surface of the large aluminum veneer curtain wall, but the outer surface cleaning effect is difficult to achieve for internal cleaning, some or even no cleaning is carried out on the interior of thealuminum veneer curtain wall, a large amount of dust can be accumulated in the aluminum veneer curtain wall after a long time, the accumulated dust can corrode the aluminum veneer, the service life of the aluminum veneer curtain wall is shortened, the using effect of the aluminum veneer is further reduced after the aluminum veneer is corroded, and the attractiveness is further reduced are solved.

The present invention includes a method and apparatus for temporary dampening and temporary conversion of a wide range of an analog percussion surfaces into electronic percussive surfaces by means of a modular self-dampening trigger system attachable in an openly modular configuration to the underside of said analog percussive surfaces in a manner that allows physical variations to traverse different media and span distance and time and allowing for discrete detection and manipulation of said variations. A trigger system that is releasably attachable to an acoustic percussion element has a metal cover plate releasably affixable to an undersurface of the acoustic percussion element, the metal cover plate partially covering less than half of the undersurface. A plurality of piezo sensors are releasably affixable to the undersurface of the acoustic percussion element. A rubber dampening element with a footprint substantially similar to a footprint of the metal cover plate is formed from a flexible thin sheet of rubber with an opening corresponding to and aligned with each of the piezo sensors, the openings each sized slightly larger than the piezo sensor. The rubber dampening element is sandwiched between the undersurface of the cymbal and the metal cover plate.

The invention discloses a cap having a lighting function. The cap comprises a cap body; an outer wall of the cap body is provided with an electric box; the outer wall at the top of the cap body is provided with damping arcs and an alarm; an outer side of the electric box is provided with a sliding chute and an external connecting line; the electric box is in clamp connection with a lamp socket via the sliding chute; one side, far from the sliding chute, of the lamp socket is connected with a wheel shaft; the lamp socket is connected with a lamp post via the wheel shaft; the wall of the lamp post is provided with a switch, an interface, a hand rocking bar and a fixing rope; one end, far from the sliding chute, of the lamp post is connected with a lamp holder; an inner wall of the cap body is provided with an inner liner; the center of the inner side of the inner liner and the inner wall of the cap body are provided with health care layers; and the inner side of the cap body is provided with fixing bands. The cap is artistic and convenient to operate, the height angle of the lamp is adjustable, users can be well protected, and the cap is suitable for promotion and application.

The invention relates to natural lipstick, which comprises the following components in part by mass: 38 to 47.5 parts of water-phase Chinese redbud extracting solution, 0 to 0.03 part of edible carmine, 41 to 49.5 parts of oil-phase castor oil, 10 to 12 parts of bee wax, 0.46 to 0.48 part of preservative ethyoxyl ethyl propionate (EEP), wherein according to the Chinese redbud extracting solution,Chinese redbud and honey are used as raw materials, the density of the honey is between 39 and 41 baume degree, and the using amount of the honey is 1.8 to 2.5 times that of the Chinese redbud. A preparation method for the natural lipstick comprises the following steps of: cleaning the selected Chinese redbud by using purified water, disinfecting at the temperature of 100 DEG C for 3 to 5 minutes, cooling to the temperature of 65 DEG C, putting the disinfected Chinese redbud into a disinfected glass container, heating to the temperature of less than or equal to 65 DEG C in a water-resisting mode, standing for 36 hours to obtain filtrate serving as the Chinese redbud extracting solution; and heating the castor oil and the bee wax to the temperature of between 60 and 85 DEG C, heating the Chinese redbud extracting solution, the edible carmine to the temperature which is the same as that of an oil phase, adding the oil phase into a water phase with stirring, continuing to stirring until the mixture is emulsified, separating the materials from a heat source, cooling naturally to the temperature of below 50 DEG C, adding the EEP, cooling naturally to room temperature, and filling into a hose.

The invention discloses a Chuzhou chrysanthemum petal suspension beverage containing galacto-oligosaccharides. A formula of the Chuzhou chrysanthemum petal suspension beverage comprises deionized water, Chuzhou chrysanthemum leaching solutions, Chuzhou chrysanthemum petals, the galacto-oligosaccharides, honey, citric acid and a suspension stabilizer; the suspension stabilizer is prepared from gellan gum, calcium lactate and sodium citrate; the Chuzhou chrysanthemum petals are in a suspension state in the liquid beverage. According to the Chuzhou chrysanthemum petal suspension beverage containing the galacto-oligosaccharides and a preparation method thereof, the compound functional beverage which has the advantages of being low in sugar, fresh and cool in mouthfeel, attractive in appearance and capable of clearing heat and loosening the bowels to relieve constipation is developed by taking the Chuzhou chrysanthemum petals, the galacto-oligosaccharides and the honey as the main raw materials and scientifically matching the three components for the problems that in existing varieties of beverages are generally high in sugar content, not beneficial for digestive system balance if the beverage is drunk for a long term and capable of inducing human health hazards such as hyperglycemia.

The invention provides a high-gloss high-adhesion heat insulation coating for an outdoor steel structure. The high-gloss high-adhesion heat insulation coating for the outdoor steel structure is prepared from the following raw material components in parts by weight: 40 to 60 parts of waterborne acrylic emulsion, 5 to 8 parts of hollow glass bead, 8 to 12 parts of nanometer titania, 1 to 3 parts ofa silane coupling agent, 0.1 to 0.3 part of an antiseptic antimildew agent, 0.1 to 0.3 part of a wetting agent, 0.3 to 0.8 part of a dispersing agent, 0.1 to 0.3 part of an anti-flash rust agent, 0.1to 0.3 part of a defoaming agent, 3.0 to 5.5 parts of a coalescing agent, 0.1 to 0.3 part of a thickening agent, 1 to 3 parts of a flatting agent, and 20 to 30 parts of deionized water.

The invention discloses a lifting type power equipment maintenance device and a using method thereof. The lifting type power equipment maintenance device comprises a lifting device, a limiting deviceand an operation platform, wherein the operation platform is installed on the limiting device, the lifting device is installed at the bottom of the limiting device, the limiting device is composed ofU-shaped limiting grooves, a limiting motor and a limiting gear shaft, the number of the U-shaped limiting grooves is two, the two U-shaped limiting grooves each are provided with a stretching rack, two rack limiting pieces are symmetrically arranged at the bottom of the operation platform, openings of the two U-shaped limiting grooves are reversely formed in the operation platform, the stretchingracks on the two U-shaped limiting grooves are located on the two rack limiting pieces, the output end of the limiting motor is vertically arranged downwards, the limiting gear shaft is arranged between the two stretching racks and is in transmission connection with the limiting motor, and the limiting gear shaft is engaged with the two stretching racks. According to the lifting type power equipment overhauling device and the using method thereof, an operator can carry out maintenance operation on transformer equipment conveniently.

The invention relates to a composite functional type flos chrysanthemi bee pollen suspension beverage containing galacto oligosaccharides. The formula of the composite functional type flos chrysanthemi bee pollen suspension beverage comprises deionized water, bee pollen granules, cane sugar, galacto oligosaccharides, honey, citric acid, a suspension stabilizing agent and edible essence, wherein the suspension stabilizing agent comprises gellan gum, calcium lactate and sodium citrate. In order to solve the problems that the sugar content of conventional varieties of beverages is generally high, so that if people drink the conventional beverages for a long term, the balance of the digestive system of people can be destroyed, and a hidden danger to the health of human bodies, such as constipation, is caused, the products of the composite functional type flos chrysanthemi bee pollen suspension beverage disclosed by the invention are developed; flos chrysanthemi bee pollen which is the special local product in the Chuzhou region, the galacto oligosaccharides and the honey are used as main raw materials, and the three kinds of ingredients are scientifically matched, so that the composite functional type beverage is low in sugar, refreshing in mouth feel and artistic in appearance and has the efficacy of preventing the constipation.

The invention provides a manufacturing technological method of a toilet bowl with an artificial stone housing and a ceramic liner integrally molded. The technological method comprises two major parts, namely technological steps and technological conditions, wherein the technological steps are conducted in three flows, namely a first flow (1-6) of making the artificial stone housing, a second flow (1'-12') of making the ceramic liner and a third flow (6-18) of combining the housing and the liner, and a technological step of '6, conducting placing and mating' is a connecting point of the three flows. In comparison with overall ceramic toilet bowls and overall artificial stone toilet bowls on the current market, the toilet bowl with the artificial stone housing and the ceramic liner integrally molded, in accordance with the manufacturing technological method, is universal in functions and parts, so that the finished toilet bowl product is simpler in manufacturing mode, higher in production efficiency and lower in manufacturing cost, and it is conducive to the improvement of product's market competitiveness; and moreover, the generation of a great amount of waste gas and wastewater as well as solid pollutants can be avoided, and a sintering process is omitted, so that the manufacturing technological method is quite beneficial for improving natural ecological environment.

The invention discloses a surface cover of a door fingerprint lock of a manager room. The surface cover of the door fingerprint lock of the manager room comprises a lock cover body, wherein a window is formed in the outer surface of the lock cover body, and fingerprints can penetrate through the window. The surface cover of the door fingerprint lock of the manager room further comprises a gear reducer and a cover plate which is used for covering the window in an overturned mode, wherein the gear reducer comprises a box body and a gear train installed in the box body, the output end of the gear train is connected with the cover plate, a driving gear which extends out of the box body is arranged at the output end of the gear train, and is installed on an output shaft of the gear train, a blind hole is formed in the output shaft, a notch is formed in an inner hole, corresponding to the blind hole, of the driving gear, a spring is arranged in the blind hole, a clamping ball is clamped between the spring and the notch, one end of the clamping ball extends into the blind hole, and the other end of the clamping ball extends into the notch. The surface cover of the door fingerprint lock of the manager room is simple in structure, capable of preventing overload, small in size, low in cost and beneficial to installation and use.

The invention provides an automatic turning mechanism for a welding fixture, which is characterized in that it includes a workbench, a driving shaft mounting frame, a driven shaft mounting frame, etc., a moisture-proof pad is arranged on the workbench, and the two sides of the moisture-proof pad are arranged There is a driving shaft mounting frame and a driven shaft mounting frame, the driving shaft mounting frame is provided with a rack, the outside of the rack is provided with an assembly plate, the rack is meshed with a gear, and the gear is provided with a drive Shaft sleeve. The invention uses a nitrogen cylinder to push the rack to drive the active gear meshed with the rack to rotate to drive the fixture to turn over, replacing the existing way of turning over the manipulator, which saves electric energy, is convenient to operate, fast in response, strong in operation stability, and low in production cost; The inside of the contact is provided with a thread, which is connected with compression through the thread. When the metal contact is damaged or the surface is uneven, it can be disassembled and replaced without replacing the buffer device, which saves energy consumption for production, and reduces cleaning and maintenance costs.

The invention discloses an embedded manhole cover. The embedded manhole cover comprises a mounting seat and a cover body, wherein the mounting seat is fixed in a manhole of a deck, and the cover body is detachably arranged on the mounting seat. A compression plate assembly used for covering a gap between the deck and the cover body is arranged on the cover body, and the compression plate assembly comprises an annular compression plate and a fastening piece, wherein the fastening piece is used for detachably fixing the compression plate on the deck. When the compression plate and the cover body are fixed, one side, in the width direction, of the compression plate abuts against a first floor glue arranged on the cover body and the other side, in the width direction, of the compression plate abuts against a second floor glue arranged on the deck so that the first floor glue is compressed on the cover body. Compared with the prior art, the embedded manhole cover has the advantages of being simple in structure and convenient to open and close, not only is effective connection between the manhole cover and the floor glue guaranteed and attractiveness of a channel ensured, but also the construction difficulty is reduced.

The invention relates to a manufacturing process of high-brightness chromium-containing glass. The manufacturing process comprises the following steps of: (1) taking silica sand, dolomite, limestone, albite, lithium carbonate, sodium nitrate and lead nitrate, mixing, uniformly stirring, then adding potassium dichromate, and then stirring uniformly to obtain glass batch; (2) melting; (3) carrying out secondary crystallization on the glass; and (4) cooling and forming to obtain a glass product. The process method of the chromium-containing glass manufactured by the invention has the advantages that by selection of a reasonable glass material formula and strict control for the heating rate in the melting process, the glass batch can be fully melted, the operation of twice crystallization is adopted, the manufactured chromium-containing glass is high in brightness and looks more sparkling, and the problem of poor brightness of the chromium-containing glass is solved.

The invention discloses a highlight three-dimensional vein material and a preparation method thereof. The highlight three-dimensional vein material is prepared from the following ingredients in partsby weight: 70 to 90 parts of ABS resin, 5 to 20 parts of three-dimensional framework filing materials, 2 to 5 parts of compatibilizers, 0.2 to 0.5 part of light stabilizing agents, 0.2 to 0.5 part ofantioxidants, 0.5 to 1 part of lubricating agents and 3 to 5 parts of metal texture color powder. A three-dimensional framework filling material with high length-diameter ratio is used as filling; inthe injection molding shaping process, a space structure framework is formed; the flaky metal texture color powder achieves the orientation guiding effect; the prepared material has a visual angle change effect. The prepared highlight three-dimensional vein material has good three-dimensional vein effects; meanwhile, the vein three-dimensional effect has the angle change features; in addition, thematerial injection molding element has the high luster degree and low shaping defects. The highlight three-dimensional vein material can be widely applied to the appearance material in the fields ofautomobiles and electronic electric appliances.

The invention relates to a purification method and an application of recombinant allosteric collagenase and discloses a method for preparing high-purity single-mutant collagenase ColH and a product prepared by virtue of the method. The method for preparing high-purity single-mutant collagenase ColH comprises the steps: expressing an E451D single-point-mutation ColH allosteric collagenase protein by virtue of specific host bacteria BL32(DE3), and carrying out low-temperature culture induction so as to increase the yield of the target protein. By virtue of five-step purification as follows: Capto Phenyl HS hydrophobic chromatography, Capto Q anion exchange chromatography, CaptoOctyl hydrophobic chromatography, Phenyl HP hydrophobic chromatography and Source 15Q anion exchange chromatography,the target protein with a purity over 98% is acquired. A biological experimental result shows that allosteric collagenase produced by virtue of the method is high in purity and good in stability; andcompared with collagenase commodities in the prior art, allosteric collagenase has obvious superiorities, and the specific enzyme activity is remarkably increased.

The invention discloses a preparation method for a glutinous-rice adhesive with insusceptibility to wrinkling and good adhesion for a paper lantern. The preparation method comprises the following steps: uniform mixing glutinous rice flour, starch sodium octenylsuccinate and water under stirring, adding Tween 60 and urea, and carrying out heating under stirring so as to obtain a first prefabricatedmaterial; uniformly mixing lignin fiber, diatomite and acetone, adding epoxidized soybean oil, carrying out uniform mixing under stirring, adding coco-hydroxyethyl sodium sulfate, water and maltitol,and carrying out heating under stirring so as to obtain a second prefabricated material; and adding the second prefabricated material, an epoxy resin adhesive, an antifoaming agent, glycol and a bactericide into the first prefabricated material, and carrying out uniform mixing so as to obtain the glutinous-rice adhesive with insusceptibility to wrinkling and good adhesion for the paper lantern. The glutinous-rice adhesive prepared by using the preparation method provided by the invention has high adhesion force; paper adhered by the glutinous-rice adhesive is not liable to generate the phenomenon of wrinkling after curing; meanwhile, the glutinous-rice adhesive has good toughness and high tensile strength, can effectively avoid artistic appearance of paper from decreasing due to high hardness after curing, has good wetting effect at the same time, and effectively prevents the phenomenon of crusting from occurrence.

The invention relates to a method for producing natural stone brick plate, including following steps: a making method of natural stone brick plate with solided state, arranging plural natural stones in parallel with approximately bending face. The invention has advantages of exceeding single landscape and fitting to natural environment, such as, effectively using land resource under the supporting of guard wall and effectively using river and lough under bank protection of the guard wall, with high efficiency of project in building the curving road and the guard wall of river, realizing greatly reducing of rebuilding engineering cost of the guard wall with semipermanent intensity and durability, realizing possible to become world legacy of tunnel, bridge, roof, air-raid shelter, water slot and so on with semipermanent durability, and improving the nature balance and landscape around the guard wall and so on buildings.

The invention relates to the field of black tea, and particularly relates to agilawood black tea and a making process thereof. The method comprises the following steps of: sequentially withering freshleaves of agilawood, slitting, rolling, fermenting, primarily drying and primarily drying, wherein the relative humidity of fermentation is greater than or equal to 95%, and the temperature is 25-35DEG C. The agilawood black tea is simple in preparation process and relatively low in equipment parameter requirement, agilawood leaves are easy to strip in the rolling process, meanwhile the bitter taste of agilawood tea grass can be eliminated, the loss of the special agilawood smell of the product is reduced, the agilawood black tea is smooth and mellow in taste, substances in the agilawood black tea can be further fermented along with the storage time, and a smooth and mellow taste can be achieved. In addition, the agilawood black tea prepared by using the process is capable of effectivelyretaining active substances in the agilawood leaves. Under a preferable condition, the agilawood black tea is made into small tea cakes by using a cake pressing technique, so that the attractivenessis improved, and the agilawood black tea is convenient to store.

The invention discloses an Internet of Things remote control vehicle navigation integrated machine which comprises a main controller arranged in a housing, and an audio module, a negative ion generating module, a display module, a navigation module, a power supply module, a remote control module, a wireless communication module and a GSM module which are connected with the respectively main controller. The Internet of Things remote control vehicle navigation integrated machine disclosed by the invention is precise in navigation and positioning, capable of generating negative ions to reduce fatigue of a driver, preventing theft, achieving remote control, detecting real-time vehicle faults, and exchanging data with a remote external device mutually, so that the machine has the wide market value and application prospect.

The invention discloses a gradient degradation skin filler and a preparation method thereof, and relates to the field of tissue filling and medical biological materials. In the filling agent disclosed by the invention, a gel matrix phase serving as a carrier is subjected to secondary crosslinking, so that primary crosslinking gel particles with relatively high crosslinking degree can be uniformly dispersed in a matrix material with relatively low crosslinking degree, and a gel particle matrix formed by the filling agent is high in central crosslinking degree and low in peripheral crosslinking degree; in addition, by compounding degradable or non-degradable microspheres, self collagen regeneration is stimulated. The filler prepared by the secondary crosslinking process has excellent rheological mechanical properties, not only has deformation resistance and durability endowed by high-crosslinking-degree gel, but also has softness and natural aesthetics brought by low-crosslinking-degree gel.