27results about How to "Avoid stuffy" patented technology

The utility model relates to the technical field of safety helmets, in particular to a safety helmet for constructional engineering supervision, which comprises a safety helmet main body, the rear end of the safety helmet main body is provided with a heat dissipation assembly, the heat dissipation assembly comprises a radiator and a controller, the radiator is electrically connected with the controller, and the controller controls the on-off of the radiator; a containing shell is further arranged on the safety helmet body, a mobile power source is inserted into the containing shell, a threaded through hole is formed in the containing shell, and the mobile power source is clamped and fixed through a bolt. According to the safety helmet for constructional engineering supervision, the design that the safety helmet and the cooling assembly are combined is adopted, the interior of the safety helmet can be cooled, and stuffiness is prevented; the mobile power supply is adopted to supply power, is replaceable, and is convenient to use and operate.

According to the technical scheme, the glasses and mask all-in-one machine is characterized in that the glasses and mask all-in-one machine comprises a glasses body and a mask body, a plurality of inserting holes are formed in the glasses body, a plurality of inserting blocks are correspondingly arranged on the mask body, first magnetic attraction blocks are arranged in the inserting holes, and second magnetic attraction blocks are arranged on the inserting blocks; a power supply and a control panel are arranged in the glasses body, the power supply is connected with the control panel, the control panel comprises a power interface, and the power interface is arranged in the jack and is linked with the insertion block; the two sides of the mask body are each provided with a filtering opening and a filter, the filters communicate with the power interface through the insertion blocks, and the glasses and mask all-in-one machine can effectively protect the eyes and the nasal cavity of a worker and is convenient to disassemble and assemble.

The utility model provides a kind of anti-cut multifunctional combined jacket, it is related to jacket technical field.The including basic jacket and waistcoat, basic jacket includes jacket body, sleeve and cap, sleeve is equipped in the top of both sides of jacket body, cap is fixedly connected on jacket body, the middle part of the front of jacket body is equipped with zipper;Waistcoat is set on the outside of basic jacket, flexible TPU shoulder pad is filled in the shoulder position of both sides of waistcoat, for dispersing backpack pressure;Left and right sides below waistcoat front lapel are equipped with buckle, for fixing backpack shoulder belt.The shoulder of both sides of waistcoat is equipped with flexible TPU shoulder pad by adopting the combination mode of basic jacket and waistcoat, the flexible TPU shoulder pad is adhered to shoulder curve, the surface area of its shoulder force increases, disperses backpack pressure, avoids shoulder sore caused by long time weight bearing;The buckle is equipped in the waist position of both sides of waistcoat, prevent backpack from sliding, reduce waist force, improve the stability of bearing.

This utility model relates to the field of transfer box technology and discloses a hollow board turnover box, comprising: a box body, which is composed of multiple hollow boards spliced ​​together, and the hollow boards have honeycomb-shaped hollow cavities inside; reinforcing columns are provided at the four corners of the box body, and the reinforcing columns are fixedly connected to the hollow boards, and the reinforcing columns also have hollow cavities inside; a groove is formed on the top of the box body; a protrusion is installed on the bottom of the box body, and the shape of the groove matches the shape of the protrusion; multiple ventilation holes are evenly formed on the side walls of the box body; and a moisture-proof net is installed in the ventilation holes. In this utility model, by setting the box body, groove, and protrusion, the honeycomb-shaped hollow cavities inside the box body ensure lightweight and high-strength support, while the embedded structure of the protrusion and groove and the design of the rubber anti-slip pad prevent lateral sliding or tipping during stacking, thereby improving the utilization rate of storage space and ensuring the stability of logistics transportation.

The utility model discloses a household music practice room which comprises a music practice room structure, an auxiliary sound insulation structure is detachably installed on the music practice room structure, a musical instrument assembly is placed in the music practice room structure, the music practice room structure comprises a household music room, and a sound insulation assembly is fixed on the household music room. The sound insulation assembly comprises a sound insulation felt layer, a sound absorption cotton layer is detachably installed in the sound insulation felt layer, a sound insulation plate layer is detachably installed in the sound absorption cotton layer, a sound absorption plate layer is detachably installed in the sound insulation plate layer, a sound absorption carpet is placed on the lower side of the interior of the sound absorption plate layer, and an illuminating lamp and a mute ventilating fan are detachably installed on a sound absorption ceiling plate. According to the household music practice room, the sound absorption effect is guaranteed through the arrangement of the sound insulation felt layer, the sound absorption cotton layer, the sound insulation plate layer, the sound absorption plate layer and the sound absorption carpet, internal stuffiness is avoided through the arrangement of the mute ventilator, and the ventilation effect is achieved.

The application discloses a municipal engineering construction integrated temporary office box house structure, which comprises a mounting frame, four groups of positioning plates are fixedly connected to one side of the mounting frame, wall plates are sleeved in the two groups of positioning plates on the same side, and the wall plates are fixedly connected with the positioning plates on the outer side; a window mounting groove is formed in the middle of one group of wall plates, a window frame is sleeved in the window mounting groove; a first supporting frame is fixedly connected between the two groups of positioning plates in the middle, a rotating groove is formed in the middle of the first supporting frame, a second supporting frame is rotatably connected in the rotating groove, and sticking plates are fixedly connected to the upper and lower sides of the second supporting frame, and the sticking plates are fixedly connected with the positioning plates on the two sides and in the middle; the welding and cutting operations are not complicated; most of the installation work can be completed by one person, the construction period of the box house is greatly shortened, the construction efficiency is improved, the box house can be repeatedly used after being disassembled, and the use cost is reduced.

The utility model discloses a high protective light diving suit, including diving suit coat and diving trousers, the lower extreme fixed connection of diving suit coat has diving trousers, the outer wall positioning of diving trousers installs the knee protection mechanism. The utility model discloses a high protective light diving suit, the knee protection mechanism of setting can strengthen the protection effect of diving suit coat knee, when diving, the knee can contact hard material, coral, rock and the like, and the knee protection mechanism can effectively prevent the knee from being injured, in some diving activities, such as cave diving or wreck exploration, the knee protection mechanism can provide additional security, prevent the knee from being injured in narrow space, in some diving activities that need walking on the sea bottom, the knee protection mechanism can provide better protection, adapt to different seabed topography, can effectively absorb the impact force, protect the knee.

The utility model belongs to the technical field of pet beds, and particularly relates to a pet bed for an automobile seat, which comprises a bed body, a first folding plate and a second folding plate, a user can unfold the whole pet bed through a support and a hinge, clamp an automobile safety belt to a gap where a spring is located, and then buckle the seat through a buckle, so that the pet bed can be folded. When a user wants to fold the whole pet bed, air is exhausted through the air outlet, then the telescopic handrail and the support are pressed to enable the three plates to be stacked together, the damage rate of the whole pet bed can be greatly reduced due to the existence of the silica gel bearing strip, and meanwhile the pet bed is convenient to use. The second folding plate and the bottom plate are fixed through the buckles, so that the folded pet bed can be conveniently stored in a trunk, the portability of the pet bed is higher, a magnetic attraction buckle belt is arranged on the air cushion, a telescopic handrail is arranged on the bottom plate, and the dual protection of the buckle belt and the handrail can ensure that a pet is prevented from rushing forwards during emergency braking; and the safety of the pet is ensured.

The invention relates to the technical field of massage equipment, in particular to intelligent wearable knee massage equipment which comprises a wrapping pad and a shell fixed to one side of the wrapping pad, two rows of elastic massage pipes are fixedly installed on the side, away from the shell, of the wrapping pad, and the two rows of elastic massage pipes are symmetrically distributed on the wrapping pad; each row of elastic massage pipes comprises a plurality of elastic massage pipes which are distributed up and down at intervals; a plurality of fixing straps are fixedly installed at the two ends of the wrapping pad, an annular heat dissipation pipe is fixedly installed in the middle of the wrapping pad, and the annular heat dissipation pipe is used for being arranged on the outer side of a knee joint in a sleeving mode; an execution assembly is arranged in the shell and comprises a liquid pressure barrel and a gas pressure barrel. According to the knee joint massage device, muscles at the knee can be massaged through expansion of the elastic massage pipes, gas entering the gas pressure barrel can be exhausted from the heat dissipation pipes, and the feeling of stuffiness and stickiness at the knee joints is avoided.

The utility model relates to the field of bras, and discloses a breathable traceless chest pad which comprises a chest pad body, the side, close to the chest of a user, of the chest pad body is an inner surface, and the side, away from the chest of the user, of the chest pad body is an outer surface; a plurality of air holes are formed in the inner surface of the chest pad body and extend towards the direction of the outer surface to form an air-permeable unit, and the air holes are of a hexagonal structure; a plurality of connecting holes are formed in the outer surface of the chest pad body and extend in the direction of the inner surface to form a connecting unit, the connecting holes are of a conical structure, and at least part of the connecting holes of the connecting unit are communicated with the air holes; at least one magnetic therapy position is arranged on the inner surface of the chest pad body along the circumferential side of the chest pad body, an opening is formed in the upper portion of the magnetic therapy position, and a magnetic therapy body is placed in the magnetic therapy position through the opening. According to the scheme, through the honeycomb-shaped ventilation units, the hole diameter of the ventilation holes is increased, the chest pad body is lighter and thinner, the ventilation effect of the chest pad is better, and perspiration is facilitated.

The utility model discloses a load -bearing type's mountain climbing backpack, including the backpack body, the rear side of backpack body is sewed up cavity body, and the cavity body is built -in with the cushion of shock attenuation PVC, and the backpack body is equipped with the shoulder belt, and the shoulder belt is equipped with a plurality of shock attenuation air bag, and the shock attenuation air bag is connected through the gauze between the shock attenuation air bag, and the backpack body rear side lower part both sides are equipped with the widened load reduction waistband, and the backpack body rear side lower part middle is equipped with the support pad. The utility model discloses the shock attenuation air bag is set up on the shoulder belt upper portion of backpack body and is connected through the gauze between the shock attenuation air bag, has the cushioning effect, and the stress of shoulder is alleviated, and the gauze can make the shoulder belt with the good ventilation effect between the shoulder, avoids the stuffy heat, and the backpack body is set up the widened load reduction waistband on the rear side both sides and receives a part of gravity of backpack body, and the stress of shoulder belt is reduced, and the backpack body rear side is equipped with the cushion of shock attenuation PVC, and the ventilation seam is formed between the cushion of shock attenuation PVC and the backpack body, can avoid the backpack body and the back close -fit when the load -bearing and lead to the poor ventilation effect, effectively promote the comfort of load -bearing.

This utility model relates to an adaptive adjustable seat cushion, comprising a cushioning layer, an adaptive support layer, and a breathable adjustment layer. The cushioning layer is disposed on the frame; the adaptive support layer and the breathable adjustment layer are disposed above the cushioning layer. The adaptive support layer includes a sponge portion and an airbag portion; the sponge portion includes several pieces of sponge bonded together and an elastic support strip lining or under the sponge; the airbag portion includes several interconnected branch airbags, all of which are supplied with air by the same air pump; the breathable adjustment layer includes a breathable layer and a temperature-controlled breathable membrane arranged sequentially from top to bottom. A heating wire is also provided inside the seat cushion, and the heating wire is electrically connected to the vehicle's power supply. The adaptive support layer of this utility model automatically adjusts the support force according to the human body pressure distribution and body shape. The airbag adjustment system and the elastic support strip can adapt to the body curves of riders of different body types, meeting diverse needs and expanding the application scenarios.

The utility model discloses a kind of signal acquisition systems of self-adaptive film electrode patch for heart disease, it is related to medical instrument technical field, the signal acquisition system includes flexible substrate, nano electrode line, electrode patch and circuit module;The bottom surface of the flexible substrate is provided with adhesive layer, and there are antiallergic drugs in adhesive layer, and the flexible substrate is used for being attached on skin surface by adhesive layer;Multiple nano electrode lines are distributed in the adhesive layer of flexible substrate, and one end of multiple nano electrode lines is respectively arranged in detection point, and the other end of multiple electrode lines is connected with circuit module, and circuit module is used for outputting the electrical signal that electrode patch gathers;The electrode patch includes flexible conductive base layer and contact layer, one side of the flexible conductive base layer is provided with printed circuit, the contact layer is attached on printed circuit, the other side of flexible conductive base layer is used for being bonded on flexible substrate and located in detection point, and flexible conductive base layer is conducted with nano electrode line;The acquisition system is simple to operate, and solve existing lead wire easy to entangle, affect surgical field of vision and patch cause skin allergy and other problems;It has higher use value and popularization value.

The invention relates to the technical field of building curtain walls, and provides a photovoltaic photo-thermal curtain wall assembly and a curtain wall system.The photovoltaic photo-thermal curtain wall assembly comprises curtain wall vertical keels which are installed on a building structural beam and assembled in a segmented mode, and the multiple curtain wall vertical keels are distributed in parallel; a plurality of curtain wall transverse keels are installed between every two adjacent curtain wall vertical keels at equal intervals; the heat preservation assemblies are arranged on the left side and the right side of the rear portion of the curtain wall vertical keel, fixedly installed on the left side and the right side of the building structural beam and used for separating heat transfer between the curtain wall vertical keel and the building. And the thermal insulation assembly is mounted at the rear part of the curtain wall transverse keel and is used for isolating heat transfer of heat in the curtain wall transverse keel and the building. When the curtain wall component is used, heat in a building is prevented from being absorbed, transmitted and lost by the curtain wall vertical keel by utilizing the assembly and effect of the heat preservation component, the vertical plate partition piece and the transverse plate partition piece, and the curtain wall component does not occupy too much available space in the building while normal operation is guaranteed.

This invention relates to the field of fabric technology, specifically to a breathable antibacterial fabric and its preparation process, and sportswear made from this fabric. The preparation process of the breathable antibacterial fabric includes: preparation of a composite antibacterial agent, preparation of multifunctional polyester fibers, amination modification of phenolic lignin, modification treatment of polyacrylonitrile, and preparation of the breathable antibacterial fabric. The breathable antibacterial fabric of this invention consists of inner, middle, and outer layers: the inner layer is a blend of modal and other materials, which is skin-friendly, moisture-wicking, and antibacterial; the middle layer is a polyurethane film layer; the outer layer contains polyacrylonitrile composite fibers, which are antibacterial, crisp, and breathable. A composite antibacterial agent made of chitosan, cysteine, and copper nitrate imparts dual antibacterial properties to the fabric, reducing bacterial resistance. Ethylene treatment enhances the bonding of components, improving wash resistance and antistatic properties; the co-spinning of amination-modified phenolic lignin and polyacrylonitrile increases fiber strength, breathability, and UV resistance. This fabric is suitable for sportswear.

The invention discloses a traditional Chinese medicine permeation treatment device for nephropathy treatment in the traditional Chinese medicine internal medicine, and relates to the technical field of medical instruments. A plurality of notches are formed in a back strap; the permeation frame is arranged in the notch and penetrates through the back strap; the physical therapy box is detachably connected with the permeation frame, one end, connected with the permeation frame, of the physical therapy box is an open end, and the physical therapy box is hermetically connected with the permeation frame; the number of the connecting frames is two, and the two connecting frames are connected to the two ends of the back strap respectively. The two ends of the bellyband penetrate through the connecting frame, and the bellyband is used for tensioning the two connecting pieces. The multiple notches are formed, the permeation frames are arranged in the notches, and the physiotherapy boxes are arranged at multiple positions of the back strap to conduct traditional Chinese medicine permeation treatment on a user, so that the device can be suitable for being used by users with various waistlines, and medicine in the physiotherapy boxes can directly make contact with the skin of the kidney of the user; ventilation space can be provided for a user at the position not in contact with medicine, and stuffiness of the skin during use is prevented.

The utility model discloses a blanket down quilt capable of being adjusted to be a sleeping bag, and belongs to the technical field of textiles. The technical problems that in the prior art, a traditional sleeping bag and a blanket quilt are functionally separated, the use scene is limited, and storage is redundant are solved. According to the technical scheme, the blanket down quilt comprises a quilt body, a two-way zipper system, a drawing rope groove and a drawing rope belt, two zipper belts of the two-way zipper system are arranged on the two long side edges of the quilt body respectively, and the two-way zipper system further comprises two oppositely-arranged zipper pullers used for controlling the two zipper belts to be combined and separated; the two pulling rope grooves are annularly formed in the two short edge sides of the quilt body respectively, the two pulling rope belts are arranged in the two pulling rope grooves respectively, and the two ends of each pulling rope belt extend out of the pulling rope grooves respectively and are connected with the zipper pullers on the same side. According to the blanket down quilt, the form conversion of the blanket down quilt and the sleeping bag can be achieved, the blanket flexibility and the wrapping performance of the sleeping bag are both considered, the use requirements of all scenes at home, outdoors and emergencies are met, and the storage size is effectively reduced.

The invention provides a self-adaptive artificial arm, and relates to the technical field of artificial limbs, the self-adaptive artificial arm comprises a palm part and an arm part, the palm part and the arm part are connected with each other, a cavity is formed in the arm part, the cavity is used for connecting an arm, the self-adaptive artificial arm further comprises a diameter adjusting device, and the diameter adjusting device is used for adjusting the diameter of the palm part. The diameter adjusting device is arranged in the cavity of the arm part, and the diameter adjusting device is driven to fix the arm. During use, the second expansion part and the skin limiting groove are arranged in the arm part, the expansion degree of the second expansion part and the skin limiting groove is controlled through the micro air pump, and when different users use the device, the device is inserted into the arm part by different depths according to the amputation position, so that the amputation effect is improved. Then a micro air pump is started, so that a second expansion part and a skin limiting groove are expanded and attached to the arm of the human body, the palm part and the arm part are connected with the arm of the human body, the adaptability is improved, and most patients do not need to customize any more.

The utility model relates to the technical field of heat radiation, in particular to a clothes heat radiation isolation structure which comprises a protective layer, a reflecting layer fixedly connected to the rear end of the protective layer, an internal air circulation layer fixedly connected to the rear end of the reflecting layer, and a heat insulation layer fixedly connected to the rear end of the air circulation layer. The rear end of the heat insulation layer is fixedly connected with an elastic supporting layer. Through the arrangement of the protective layer, the reflecting layer, the air circulation layer, the heat insulation layer, the elastic supporting layer and the skin attaching layer, in the using process, the reflecting layer is fixed through the protective layer and used for preventing friction damage on the outer layer, the reflecting layer is used for reflecting most of heat radiation, and the heat insulation layer is installed through the air circulation layer. The air circulation layer enables internal air to circulate without stuffiness, the heat insulation layer is used for second heat radiation protection and temperature isolation, the elastic supporting layer is used for enabling the whole garment to have elasticity, finally, the skin attaching layer is installed, comfort is achieved when the garment is attached to the skin, and therefore the effect of reflecting heat radiation is achieved.

The utility model discloses a kind of compression fixing devices for cardiac pacemaker postoperative, including back pad, the two sides of the back pad are equipped with left annular belt and right annular belt, the upper end of the back pad is connected with the one end of upper shoulder strap, the other end of the upper shoulder strap is connected with net bag, the net bag is connected with the one end of lower shoulder strap, the lower shoulder strap, left annular belt and right annular belt are connected with three item inserts respectively.The utility model newly adds a back pad in patient back position, the contact area with sickbed is increased by enlarged back pad, and the pressure of annular belt and shoulder strap to back, waist, shoulder can also be dispersed, prevent long time braking from producing blood stasis and scar, through net bag design, it can be guaranteed that fixed compression bag carries out compression to wound, and also can observe whether there is cyanosis and exuding blood etc. in surgical incision, through three item inserts, annular belt and shoulder strap are connected, avoid the problem of discomfort and inconvenient operation that multiple connection positions bring to patient.

The invention discloses a flame-retardant heat-insulating electric heating carbon fiber composite fabric and a preparation method thereof, and belongs to the field of fiber fabrics, the composite fabric comprises a glass fiber substrate layer, a carbon fiber electric heating layer and a flame-retardant heat-insulating coating covering the surface of the carbon fiber electric heating layer; according to the carbon fiber electric heating layer, carbon fibers are fixed to the glass fiber base layer according to a preset path through a customized fiber laying technology, so that a conductive heating network is formed. The flame-retardant heat-insulating coating is a vinyl silicone rubber-based composite coating and comprises vinyl silicone rubber VMQ-14, vinyl silicone rubber VMD-10k, white carbon black, aluminum hydroxide, zinc borate flame-retardant filler, a platinum catalyst, a hydrogen-containing silicone oil cross-linking agent and an inhibitor.

The utility model discloses a swimsuit for women. The swimsuit comprises an upper swimsuit, lower swimming trunks and hip pads, the upper swimsuit is detachably connected with the lower swimming trunks through a connecting piece, a hip pad made of an elastic material and matched with the radian of the hip of a human body is detachably and fixedly arranged on the inner side of the hip of the lower swimming trunks, and a plurality of air holes are evenly formed in the surface of the hip pad. According to the swimsuit for women, the problems that in the prior art, an existing one-piece swimsuit is prone to generating a vacant position at the buttocks, so that the existing one-piece swimsuit cannot smoothly upwarp, the overall aesthetic feeling is reduced, and the shaping effect cannot be achieved are solved.

The application relates to the field of intelligent temperature control clothes, and discloses an intelligent temperature control clothes integrating human body state sensing and environment parameter monitoring, which comprises a clothes body, a heating cloth, a plurality of temperature and humidity sensors, an acceleration sensor, a main controller and a flexible battery, microenvironment data and instantaneous acceleration components are respectively collected and input into the main controller for calculation to obtain average temperature, average humidity and human body motion state, the main controller is preset with a maximum humidity threshold value, when the average humidity is greater than the maximum humidity threshold value, a conventional regulation branch is locked and the output power of the heating cloth is limited; when the average humidity is less than or equal to the maximum humidity threshold value, the output power of the heating cloth is dynamically adjusted in combination with the average temperature and the motion state, and a composite packaging layer composed of a nylon mesh cloth and a microporous waterproof film covers the outside of the sensor. The application builds a dehumidification priority mechanism and a self-adaptive energy compensation model, avoids the risk of stuffiness caused by continuous heating, and simultaneously meets the waterproof and breathable requirements of the sensor and the machine washing requirement.

The utility model relates to the technical field of cushion, disclose a kind of novel cushion of being fixed and hygroscopic and ventilated easily, comprising: cushion main body, upper equidistance is equipped with several groups of sensitive block, same group of sensitive block equidistance distribution has several, adjacent group of sensitive block between form ventilated area, each ventilated area is equipped with several air holes;Anti -skidding component, including non -slip washer and sucking disc, non -slip washer is fixedly arranged in the edge of cushion main body bottom surface, and sucking disc is fixedly arranged in the four corners of cushion main body bottom surface, and it is arranged in the outside of non -slip washer;Hygroscopic pad, detachably arranged in the place below each ventilated area of cushion main body bottom surface.The utility model has the advantages that good anti -skidding effect is obtained when using, and has good ventilating and hygroscopic effect.

The utility model provides a convenient adsorption type sandal which comprises a sandal base, anti-skidding lines are arranged at the bottom of the sandal base, an installation pad is fixedly installed on the outer side of the sandal base, a fixed suction cup is fixedly installed on the outer side of the installation pad, and a toe sleeve is fixedly installed on the top of the sandal base. An adsorption assembly is arranged on the outer side of the mounting pad, a connecting belt is arranged at the top of the adsorption assembly, and a vent hole is formed in the top of the connecting belt. According to the convenient adsorption type sandal, the adsorption assembly, the fixed suction cup on the outer side and the movable suction cup in the adsorption assembly are arranged, a pressing base drives the movable suction cup to generate adsorption force through deformation of an elastic spring, and compared with traditional sandals mostly through shoelaces, hook-and-loop fasteners, buckles and the like, the convenient adsorption type sandal is more convenient to use; and the adsorption assembly fits human engineering, so that the constraint feeling of toes can be reduced, stuffiness caused by long-time wearing can be avoided, and long-term stable work of the adsorption assembly is ensured.

The utility model relates to the technical field of shading fabrics, in particular to a double-faced chenille yarn crocheting yarn which comprises a surface layer and a middle layer, the surface layer comprises chenille yarn and crocheting yarn, the surface layer is of a warp knitting mesh structure woven by the chenille yarn and the crocheting yarn, the middle layer is made of black yarn cation polyester, and the surface layer is of a warp knitting mesh structure woven by the chenille yarn and the crocheting yarn. The surface layers and the middle layer are woven in a double-warp single-weft weaving mode, the surface layers are located on the upper side and the lower side of the middle layer, and the surface layers on the upper side and the lower side serve as the front face and the back face of the fabric are consistent in touch feeling and color. According to the double-faced chenille yarn crocheting yarn, the chenille yarn and the crocheting yarn are woven through the warp knitting mesh structure, the ventilation effect of the fabric is guaranteed, indoor stuffiness is avoided on the basis that the shading performance of a curtain is kept, and the air circulation capacity is improved.