baber/WOPTO huggingface dataset:
Patent RU-2018161-C1 (RU)
Inventor: SEMOV ALEKSANDR E
IPC: G02B6/28
Filed: 1991-11-12
Granted: 1994-08-15
Abstract: FIELD: fiber optics. SUBSTANCE: device has two aligned drums for laying and fixing fibers, two mechanismsm for twisting and stretching fibers, heating unit movably mounted along the aixs of drums and including an electrode switch and holder on which four groups of electrodes are situated and arranged in pairs symmetrically relative to the plane orthogonal to the axis of the drums. Electrodes of each pair are disposed symmetrically relative to the axis of drums. Each group is composed of "n" electrodes each of which is connected to the switch capable of parallel connection of electrodes of pairs opposite with respect to the symmetry axis or electrodes of one of the pairs of electrode groups. EFFECT: improved quality. 2 cl, 3 dwg
Patent RU-2027111-C1 (RU)
Title: Combustible chamber
Inventor: AKULOV VLADIMIR A
IPC: F23R3/04
Filed: 1991-10-23
Granted: 1995-01-20
Abstract: FIELD: power engineering. SUBSTANCE: air directing branch pipes are located at definite distance from burners given in Description of invention; besides that, total passage area of branch pipes is determined depending on passage area of air swirlers. EFFECT: enhanced efficiency. 2 dwg
Patent RU-2089584-C1 (RU)
Title: Method for marking pavement, thermoplastic composition for marking pavement and marking pavement
Inventor: DE KEJZER NOEL REMON MORIS
IPC: E01F9/04
Filed: 1992-02-12
Granted: 1997-09-10
Abstract: A process for marking a pavement comprising melting a dry-blended thermoplastic pavement marking composition which contains an elastomer and a substantially cycloaliphatic and/or aliphatic hydrocarbon resin and applying the molten composition thus obtained to the pavement, wherein the elastomer is a block copolymer containing at least one predominantly poly(conjugated diene) block which may or may not have been hydrogenated and at least two predominantly poly(vinylaromatic) block, which block copolymer is present in the dry-blended composition in the form of a powder.
Patent RU-2111965-C1 (RU)
Inventor: LIANG PAUL HSIAO-TSENG
IPC: A01N47/36
Filed: 1987-12-04
Granted: 1998-05-27
Abstract: Изобретение относится к новым пиридинсульфонилмочевинам общей формулы I или их приемлемым для сельского хозяйства солям, обладающим гербицидной активностью, а также к способу их получения и композиции для борьбы с ростом нежелательной растительности. Описанные соединения формулы I имеют следующую структуру:      где R - H или CH 3 ; R 1  - R f  или R g ; R f  - H, C 1 -C 3 -алкил, C 1 -C 3 -галоалкил, галоген, C 1 -C 3 -алкоксил или C 1 - C 3 -алкилтио; R g  - C 1 -C 3 -галоалкил, C 1 -C 3 -алкил, замещенный C 1 -C 3 -алкоксилом, C 1 -C 3 -алкиламино, ди-C 1 -C 3 -алкиламино или W 2 R 11 ; R 2  - C 1 -C 4 -алкилсульфинил, C 1 -C 4 -алкилсульфонил,  SO 2 NH 2 , SO 2 NR d R e , SO 2 NR 7 R 8 , SO 2 NR' 7 R 8 , OSO 2 R 8 , CO 2 R 9 , CO 2 R' 9 , CF 2 H, CH 2 Cl, C 2 -H 4 -галоалкил или N 3 ; R 7  - H, R' 7  - C 1 -C 4 -алкил, R d  - C 1 -C 2 -алкил, R e  - C 1 -C 2 -алкоксил, R 8  - C 1 -C 4 -алкил или C 1 -C 4 -галоалкил; R 7  и R 8  вместе взятые, могут означать -(CH 2 ) 3 -, -(CH 2 ) 4 - или -(CH 2 ) 5 ; R 9  - C 3 -C 4 -алкинил, C 4 -C 7 -циклоалкилалкил, C 3 -C 5 -циклоалкил или -CH 2 CH 2 OH; R' 9  - C 1 -C 4 -алкил; R 11  - C 1 -C 3 -алкил или C 1 -C 3 -галоалкил; W 2  - O или S; X - C 1 -C 4 -алкил, C 1 -C 4 -алкоксил, C 2 -C 4 -галоалкоксил или галоген; Y - C 1 -C 4 -алкил, C 1 -C 4 -алкоксил, C 1 -C 3 -алкиламино или ди-C 1 -C 3 -алкиламино; Z - CH или N  при условии, что когда X означает галоген, то Z означает CH, а Y означает C 1 -C 4 -алкокси, C 1 -C 3 -алкиламино или ди-C 1 -C 3 -алкиламино; когда общее число атомов углерода X и Y больше четырех, общее число атомов углерода R 1  и R 2  меньше или равно шести и когда R 2  означает -CO 2 R' 9  или SO 2 NR' 7 R 8 , то R 1  означает R g , а когда R 2  отличен от -CO 2 R' 9  или -SO 2 NR' 7 R 8 , то R 1  означает R f . Способ получения этих соединений заключается в том, что сульфонамид формулы      где R 1  и R 2  имеют вышеуказанные значения, подвергают взаимодействию с фенилкарбаматом формулы      где R 1 , X, Y и Z имеют указанные выше значения в присутствии 1,8-диазабицикло[5.4.0] ундецен-7-ена и растворителя с последующим, в случае необходимости, переводом полученной пиридинсульфонилмочевины в соль, например, взаимодействием с гидроксидом щелочного или щелочноземельного металла или с соответствующим амином. Композиция включает 0,1 - 99 мас.% соединения формулы I и добавку, выбранную из группы, включающей поверхностно-активное вещество, твердый и жидкий инертные разбавители или их смеси. Описанные соединения обладают высокой активностью в качестве предвсходовых и послевсходовых гербицидов. 3 с. и 18 з.п. ф-лы, 23 табл.
Patent RU-2032100-C1 (RU)
Inventor: SHISHKIN VIKTOR V
IPC: F01B29/10
Filed: 1991-09-16
Granted: 1995-03-27
Abstract: Сущность изобретения: двигатель содержит корпус 1, оснащенный патрубком 2 с нагревателем 3. На рабочем валу 16 установлен барабан 10, оснащенный механизмом реверса. В корпусе и в патрубках закреплены концы гибких рукавов 8 и 14. Вторые концы рукавов соединены общей гибкой связью 9 с барабаном. Полость патрубка сообщена с полостью корпуса. 1 ил.
Patent RU-2026062-C1 (RU)
Inventor: KOVALEV EVGENIJ VIKTOROVICH
IPC: A61K6/70
Filed: 1991-12-13
Granted: 1995-01-09
Abstract: FIELD: medicine. SUBSTANCE: paste for treatment of parodontitis includes paste containing antibacterial substances, oil solution of vitamin E, chymotryppsin and additionally introduced dibunol and zinc oxide. Used as antibacterial substances are dioxidine, zinc sulfate and cobalt sulfate in the following amounts, mas.%: dioxidine 0.05-0.1; zinc sulfate 0.11-0.44; cobalt sulfate 0.12-0.38; dibunol 0.05-0.1; chymotrypsin 0.005-0.01; zinc oxide 45.0-50.0; the balance, oil solution of vitamin E. EFFECT: higher efficiency of treatment and reduced complications in treatment of paradontitis. 1 tbl
Patent RU-2021520-C1 (RU)
Inventor: STEPANOV VLADIMIR M
IPC: E21D11/36
Filed: 1991-07-08
Granted: 1994-10-15
Abstract: FIELD: mining. SUBSTANCE: aggregate roadway support has extreme front and extreme rear units successively connected by rams. Units have bases with stops connected with hydraulic props by clamps, roofing of cross-pieces and cappings attached to cross-pieces at sides of roofing, and longitudinal beams installed between cappings and secured to cross-pieces. Installed in extreme front and rear linear units are two longitudinal beams at distance of width of one longitudinal beam from cappings. Installed in extreme rear and front linear units are two longitudinal beams near cappings, and one longitudinal beam is installed in middle linear unit along unit longitudinal axis. Length of each longitudinal beam is three times as much as length of capping. Hinged beams of different heights may be attached to longitudinal beams to be inscribed into working outline. EFFECT: higher efficiency. 2 cl, 5 dwg
Patent RU-2068989-C1 (RU)
Inventor: GALITSKIJ LEONID IVANOVICH
IPC: G01M1/02
Filed: 1992-01-04
Granted: 1996-11-10
Abstract: Использование: относится к балансировочной технике и может быть использовано в горизонтальных балансировочных станках для балансировки роторов. Сущность изобретения: одна из частей крышки жестко закреплена на раме и снабжена емкостью для сбора масла, установленной на стойке станины емкость для сбора масла имеет возможность сообщаться с поддоном, а вторая - подвижная часть крышки выполнена разъемной. 3 ил.
Patent RU-2066003-C1 (RU)
Title: Rivet
Inventor: GREBENIKOV ALEKSANDR GRIGOREVI
IPC: F16B19/06
Filed: 1992-01-27
Granted: 1996-08-27
Abstract: FIELD: mechanical engineering. SUBSTANCE: rivet has rod and manufactured head made up as a trancated circular cone and cylinder conjugated with it. The small base of the trancated cone abuts against the rod. The end face of the cylinder is provided with a compensator made up as a straight circular cylinder whose diameter is equal to the diameter of the cylinder of the head. EFFECT: enhanced reliability. 3 dwg
Patent RU-2038555-C1 (RU)
Title: Well-type drying chamber for drying loose material
Inventor: DOLGOPOLOV IGOR SERGEEVICH
IPC: F26B9/06
Filed: 1991-07-01
Granted: 1995-06-27
Abstract: FIELD: chemical industry. SUBSTANCE: drying chamber has two groups of plastic grids with controlled inclination to the horizon. One side of each grid of the first group is coupled with the housing walls. One side of each grid of the second group is pivotally secured at the central axis of the chamber. The others sides of the grids of both the groups are fixed within the range of natural cone angles of loose material. The grids of the first group are secured to the housing. A system for feeding a drying agent has central passageway and two side passageways of triangle cross-section. EFFECT: improved quality of drying. 1 dwg
Patent RU-2023564-C1 (RU)
Title: Apparatus for arc welding of slit sifts with rigidity ribs
Inventor: SHUGUROV ALEKSANDR N
IPC: B23K37/047
Filed: 1992-03-26
Granted: 1994-11-30
Abstract: FIELD: welding equipment. SUBSTANCE: apparatus has supports 2 with mandrel 1. Struts 9, spring-loaded relative to supports 2, are mounted with possibility of rotation on a base. Struts 9 support carrying plate 6, limiting plate 7 and overlapping plate 8. EFFECT: enhanced serviceability. 3 cl, 2 dwg
Patent RU-2030332-C1 (RU)
Title: Helicopter external load sling system
Inventor: ABASHIN ALEKSANDR A
IPC: B64D9/00
Filed: 1992-03-30
Granted: 1995-03-10
Abstract: FIELD: aeronautical engineering. SUBSTANCE: external load sling system for securing loads to helicopter 1 has slings 2 and 3 with grips 4 and 5, support 6, load-bearing beam 8 and unit 7 for orientation of load in horizontal plane. Support 6 and load-bearing beam 8 are secured to helicopter 1 and slings 2 and 3 are secured on load-bearing beam 8 which is made for rotation about support 6 in horizontal plane; unit 7 for orientation of load in horizontal plane is made in form of drive arranged on support 6 and kinematically linked with load-bearing beam 8. Besides that, drive is made in form of two winches 12 and 13 located on support 6 at diametrically opposite points and connected by means of two flexible couplings 14 and 15 with two sections of drum 16 secured axially on load-bearing beam 8. EFFECT: improved operational characteristics and ease in use through orientation of load in wide range of angles in horizontal plane. 2 cl, 3 dwg
Patent RU-2050559-C1 (RU)
Inventor: GAVRILOV ALEKSANDR M
IPC: G01S15/02
Filed: 1992-04-14
Granted: 1995-12-20
Abstract: Изобретение относится к акустическим локационным системам и предназначено для поиска объектов вблизи протяженной поверхности раздела в рыбном промысле придонной и приповерхностной рыбы, для поиска плавающих объектов, в морской археологии, геологии (поиск железно-марганцевых конкреций), для контроля подводных коммуникаций (трубопроводы, кабели и т. п.) и др. Для повышения надежности обнаружения полупогруженных и погруженных объектов, увеличения дстанции поиска, повышения производительности и снижения трудоемкости поисковых работ в устройство, содержащее генаратор низкой частоты и генератор высокой частоты, приемник, индикатор, последовательно соединенные ключ, усилитель мощности, коммутатор прием-излучение и обратимый электроакустический преобразователь, предварительный усилитель, вход которого подключен к второму выходу коммутатора, стабилизированную платформу, механически соединенную с обратимым электроакустическим преобразователем, введены балансный модулятор, два входа которого соединены с выходами генераторов, низкочастотный звукоприемник, к выходу которого подключен приемник, соединенный с индикатором, к выходу индикатора подключены импульсный генератор и измеритель временных интервалов, к выходу которого последовательно подключены преобразователь время-напряжение и усилитель постоянного тока, выход которого соединен с управляющим входом генератора низкой частоты, пороговая схема, включенная между выходом предварительно усилителя и вторым входом измерителя временных интервалов, выход импульсного генератора соединен с управляющим входом ключа. 3 ил.
Patent RU-2010104-C1 (RU)
Title: Electronic ignition system
Inventor: TATAUROV VALERIJ F
IPC: F02P3/04
Filed: 1992-01-09
Granted: 1994-03-30
Abstract: FIELD: pulse technology. SUBSTANCE: system has one voltage converter on one transistor 1, two resistors 2, 3, one transformer 4 with four windings 5, 6, 7, 8. Moreover, the system has one stabilizing unit on two diodes 9, 13 one stabilizer diode 10, one thyristor 11, one capacitor 12. The system also has a control unit on three diodes 14, 15, 23, two capacitors 16, 21, one transistor 17, three resistors 18, 20, 22, one interrupter 19, one pulse transformer 24. Moreover, the system has one discharge unit of a storage capacitor on one capacitor 27, two resistors 28, 29, three diodes 30, 31, 32, one thyristor 33. The device has ignition coil 34. EFFECT: improved structure. 1 dwg
Patent RU-2046265-C1 (RU)
Title: Automatic weapon gas-extraction engine with gas extraction from barrel muzzle end
Inventor: ADOV ALEKSANDR B
IPC: F41A5/18
Filed: 1992-06-05
Granted: 1995-10-20
Abstract: FIELD: arms. SUBSTANCE: gas-extraction engine with gas extraction from barrel muzzle end has muzzle cap 3, gas vent and gas cylinder 7 with piston 8. The gas vent is made as duct 4 in muzzle cap 3 and gas tube 6 connecting duct 4 in muzzle cap 3 to gas cylinder 7. Muzzle cap 3 is provided with gas lock 5 having cut-out a installed for turning and locking duct 4; and gas cylinder 7 with piston 8 is shifted towards bore breech end 1 over the length of gas tube 6. EFFECT: improved design. 1 dwg
Patent RU-2060947-C1 (RU)
Title: Method for production of arsenides of ferrum
Inventor: MILKE EDGARD GENRIKHOVICH
IPC: C01G28/02
Filed: 1992-06-23
Granted: 1996-05-27
Abstract: FIELD: inorganic chemistry. SUBSTANCE: powder arsenopyrite and metallic ferrum are mixed, their mass ratio being 1:0.35; 1:0.51; 1:0.68. Thus obtained mixture is affected by heat treatment within 60-90 min at 600-700 C in inert atmosphere. Calcine is alkalized with the help of 10 % hydrochloric acid, ratio of liquid and solid phases being 3:1. Arsenides of ferrum having formulae Fe 2 As, FeAs and FeAs 2  are prepared at yield 95.6-98.2 %, their composition depends upon the ratio of origin reagents. EFFECT: improves efficiency of method. 2 tbl
Patent RU-2046986-C1 (RU)
Title: Fuel supply system for internal combustion engine
Inventor: FOLOMIN ANATOLIJ A
IPC: F02M41/16
Filed: 1992-06-30
Granted: 1995-10-27
Abstract: FIELD: engine engineering. SUBSTANCE: system has at least one pump-nozzle with hydraulic drive connected to the fuel dispenser, main fuel tank, main fuel pump with the delivery pipe line connected with the accumulating chamber, make-up fuel pump connected to the main fuel tank by its sucking pipe line, and additional fuel tank. The sucking pipe line of the main pump, delivery pipe line of make-up pump are connected with the additional fuel tank. The accumulating chamber is connected with the additional fuel tank through the reduction valve. The delivery and sucking pipe lines of the main pump and accumulating chamber are connected with the fuel dispenser. The fuel is fed to the pump-nozzle via two passageways simultaneously in periodically changeable directions. The fuel dispenser directly controls the nozzle. EFFECT: enhanced reliability. 2 cl, 1 dwg
Patent RU-2032581-C1 (RU)
Title: Velovehicle
Inventor: MAKAROV YURIJ A
IPC: B62K5/00
Filed: 1992-05-20
Granted: 1995-04-10
Abstract: FIELD: ecologically oriented transport. SUBSTANCE: vehicle has second driving wheel with reverse-overrunning clutch and second pedal pair forming autokinematically acting group. EFFECT: enlarged operating capabilities owing to optimized use of biofactor multidimensionality. 2 dwg
Patent RU-2093879-C1 (RU)
Title: Method for recording and processing of three- dimensional image and corresponding camera
Inventor: ZHAN-MISHEL MARTINYUZZI
IPC: G03B19/02
Filed: 1992-06-26
Granted: 1997-10-20
Abstract: FIELD: satellites observations. SUBSTANCE: method involves determination of screened plane P by means of two perpendicular to coordinate X and Y, recording image by means of camera which has transfer modulation function H u (f) with cutting frequency f cu  in direction U (U = x, y) of plane P. F is three-dimensional frequency. First stage of method involves recording image with sampling frequency f cu  in direction U is equal to Kf cu , where k is integer which is greater than 1. Second stage of method involves processing of recorded image by means of application of development operation in frequency region for each direction U. This is achieved by multiplication of inverse value of transfer modulation function H u (f) by tuned clipping function 1 and (f). Corresponding camera 100 has matrix 120 of elementary detectors 121 which are designed as charge-coupled devices located in focus of lens 110. EFFECT: increased functional capabilities. 6 cl, 6 dwg
Patent RU-2063504-C1 (RU)
Title: Method for improving seismic stability of the existing buildings
Inventor: BEZRUKOV YURIJ I
IPC: E04H9/02
Filed: 1992-04-06
Granted: 1996-07-10
Abstract: FIELD: improving seismic stability of the existing buildings. SUBSTANCE: U-shaped frames of modular blocks are installed from outside the building. Gap between the blocks and building is filled with damping material. EFFECT: improving seismic stability. 3 dwg
Patent DE-10053651-C1 (DE)
Title: Assembly to draw warp yarns through a double reed comprising two fixing blades with slits at one side of the reed are moved in a cycled action to engage and disengage the rows of reed dents to work with the drawing-in hooks
Inventor: GREINER PETER
IPC: D03J1/14
Filed: 2000-10-28
Granted: 2002-06-06
Abstract: An assembly to draw warp yarns (2) through a double reed (1) has two fixing blades (4,5), with slits (10), at one side of the reed. They are brought in and out of the reed, in a cycled movement, to engage with the reed dents and the gaps (10) between neighboring reed dents in a row (6) of reed dents. An assembly to draw warp yarns (2) through a double reed (1) has two fixing blades (4,5), with slits (10), at one side of the reed. They are brought in and out of the reed, in a cycled movement, to engage with the reed dents and the gaps (10) between neighboring reed dents in a row (6) of reed dents. The gap between one fixing blade on one side, and the other fixing blade and the drawing-in hooks on the other side, is varied by cycles by a half-interval. A disengaged fixing blade is moved away from the other fixing blade when it is engaged and draws in the hooks. The other disengaged fixing blade is drawn towards the first when it is engaged.
Patent DE-10054156-C1 (DE)
Title: Process for heat treating e.g. copper foils used in the production of capacitor foils comprises guiding the foils simultaneously over two convex surfaces using gas cushions producing an egg shape cross-section
Inventor: KRAMER CARL
IPC: F27B9/14
Filed: 2000-11-02
Granted: 2002-06-27
Abstract: Process for heat treating two foils made from rolled metal strips comprises guiding the foils (11, 11') simultaneously over two convex surfaces (24, 24') using gas cushions producing an egg shape cross-section. Heat transfer occurs by forced convection with the aid of gas streams leaving openings (28, 28') in the convex surfaces.  An Independent claim is also included for a device for heat treating two foils made from rolled metal strips. Preferred Features: Lubricants and/or separating emulsions adhered on the foils during rolling are vaporized during the heat treatment and the vapors formed are removed together with the gas.
Patent DE-10064364-C1 (DE)
Title: Multi-piece soft top for car has drive branching device in form of rail guide with two carriage guide track each with drive carriage and two coupling connecting carriages
Inventor: SALZ WOLFRAM
IPC: B60J7/20
Filed: 2000-12-21
Granted: 2002-06-20
Abstract: The soft top has its setting devices driven via a drive branching device in the form of a rail guide with two carriage guide tracks each with a drive carriage and two connecting carriages for coupling to the drive carriage. The corresponding connecting carriages can be moved by opposed displacement devices.
Patent DE-10101152-C1 (DE)
Title: Clothing for stoma patients comprises a belt consisting of fabric sections of textile material increasing in width from the base plate of a stoma to the connection with the clothing
Inventor: MILITELLO MARICA
IPC: A61F5/449
Filed: 2001-01-12
Granted: 2002-10-10
Abstract: Clothing for stoma patients, especially underwear, comprises a belt on each side of the stoma for the base plate (28) of the stoma supply. The belt consists of fabric sections (GAR, GAL) of textile material increasing in width from the base plate to the connection with the clothing.  Preferred Features: The textile material is the same as the clothing material. The fabric sections are cut out of a closed fabric surface of the clothing. The narrow ends (ER, EL) of the fabric sections pass through belt guides of fastening elements.
Patent DE-10109882-C1 (DE)
Inventor: KORTHAEUER MANFRED
IPC: C03B37/012
Filed: 2001-02-22
Granted: 2002-08-01
Abstract: The invention relates to a device for imprinting a strip (1) or labels (2) adhering to a strip (1), according to which  the strip is rolled off from a supply roll (3) and is fed to a printing unit (4). The supply roll is held by a support device and the printing unit (4) is opened to insert a strip and is closed to imprint the strip or the labels adhering to said strip. In order to make insertion or change of the strip easier, the printing unit (4) is provided with an automatic adjustment device that automatically opens the printing unit in response to a signal. A securing device that secures the supply roll (3) on the support device during printing is automatically actuated by the automatic adjustment device or another automatic adjustment device in response to said signal or in response to another signal so that the holding device releases the supply roll (3).
Patent DE-10129059-C1 (DE)
Title: Backrest frame for motor vehicle seat, has stiffening rod which is inserted into and welded to the edge region of frame side beams
Inventor: BEJ MIRCEA
IPC: B60N2/68
Filed: 2001-06-15
Granted: 2002-10-02
Abstract: The backrest frame comprises a stiffening rod (5,5') which is inserted into and welded to an edge region (3a,3b,4a,4b) of the backrest frame side beams (3,4). The edge region forms a longitudinal channel which partially encompasses the stiffening rod along the longitudinal edge. The stiffening rod has a bent section which is welded to a bottom cross-beam (2).
Patent DE-10147208-C1 (DE)
Inventor: KOLB STEFAN
IPC: A61M1/02
Filed: 2001-09-25
Granted: 2003-04-30
Abstract: The user section (includes bar code reader, keypad and indicators) is raised in relation to the holder for the blood dispensing unit.
Patent DE-10150616-C1 (DE)
Title: Connection between an inner jacket of steering column of a motor vehicle and sleeve-like holder comprises on the jacket two radially protruding stops and a form-locking element interacting with counter form-locking element on holder
Inventor: SCHMIDT JOACHIM
IPC: B62D1/181
Filed: 2001-10-12
Granted: 2003-02-06
Abstract: Connection between an inner jacket (1) of a steering column of a motor vehicle and a sleeve-like holder (2) on which an adjusting device for the jacket is fixed comprises on the jacket at least two axially separated radially protruding stops (5, 7) on which lie facing sides of the holder with a stop edge (6), and at least one form-locking element (13) interacting in a locking manner with a counter form-locking element (14) arranged on the holder. One of the stops on the jacket is formed by a step of a step-like concentric expansion (10) of the jacket.  An Independent claim is also included for a process for producing the above connection. Preferred Features: The front stop of the jacket is formed by a peripheral annular collar. The form-locking element is in the form of a dome-shaped nub and the counter form-locking element has a corresponding recess.