baber/WOPTO huggingface dataset:
Patent EP-0190852-A3 (EP)
IPC: A61K38/00
Filed: 1986-01-27
Abstract: There are disclosed dipeptide derivatives represented by 
the general formula: 
  
wherein R¹ is a radical selected from the group consisting of 
alkyl, aralkyl and aryl groups optionally containing one or 
more substituent groups, R² is a radical selected from the 
group consisting of hydrogen atoms and alkyl, aralkyl and 
aryl groups optionally containing one or more substituent 
groups, R³ is a radical selected from the group consisting of 
hydrogen atoms and alkyl, aralkyl and aryl groups optionally 
containing one or more substituent groups, R⁴ is a radical 
selected from the group consisting of hydrogen atoms and 
alkyl, aralkyl and aryl groups optionally containing one or 
more substituent groups, and R⁵ is a radical selected from 
the group consisting of hydroxyl, amino, hydroxyamino, 
alkyloxy, aralkyloxy, aryloxy, alkylamino, aralkylamino, ary­
lamino, alkyloxyamino, aralkyloxyamino, aryloxyamino, acy­
lamino and sulfonylamino groups, which alkyloxy, aralky­
loxy and aryloxy groups optionally containing one or more 
substituent groups; wherein R³ may be combined with R² or 
R⁴ to form an alkylene bridge optionally containing one or 
more oxygen atoms, sulfur atoms and nitrogen atoms and 
optionally containing one or more substituent groups. 
However, certain dipeptide derivatives within the above 
general formula are exclused from the invention. The 
dipeptide derivatives are useful for the treatment of hyper­
tension.
Patent EP-0219206-A3 (EP)
Title: Phase sensitive detection in multislice magnetic resonance imaging systems
IPC: G01R33/44
Filed: 1986-08-15
Abstract: In a magnetic resonance imaging system, the same reference signal is used for both radio frequency transmission and phase sensitive detection. The use of the same reference signal for both transmission and reception prevents phase unlock between the two events. However, this technique results in variation in the demodulated, frequency encoded information, which is corrected by digitally filtering the received signal information as a function of the demodulation frequency used.
Patent EP-0219226-A3 (EP)
Title: Dusting flour recycling system
IPC: B07B9/00
Filed: 1986-09-12
Abstract: A flour recycling system includes a compressed air and vacuum head (27) placed over a bakery product conveyor line (26). Flour is removed from the product units (25) and is conveyed through a vacuum hose (14) to the inlet of a remotely located dual stage separator (46) in which the flour with entrained dough particles is subjected to a two-stage vacuum induced centrifugal separating process. Cleansed flour is drawn by vacuum through two fine mesh sifter screens (56) into two reclaimed flour tanks (61) each containing a vortex eliminator (62) and each having an air release bag (64). Reclaimed flour is delivered to storage receptacles (66) beneath the tanks through elongated flexible chutes (67) which can be tied off and closed at desired elevations. The tanks (61), their air release bags (64) and flexible chutes (67) can be individually vacuum cleaned without shutting down the system merely by stopping the operation of one blower (55) while continuing to operate the other blower (55) of the dual blower system, one for each tank (61).
Patent EP-0241795-A3 (EP)
Title: Benzimidazolo-quinazolines
IPC: C07D487/04
Filed: 1987-03-30
Abstract: Benzimidazolo-quinazolines of the general formula    <IMAGE>  (I)  in which Y denotes a radical of the formula    <IMAGE> (IIa)   <IMAGE> (IIb)  or   <IMAGE> (IIc)  Y1 denotes hydrogen or alkyl, X and X1, independently of one another, denote hydrogen, alkyl, cycloalkyl, aryl or aralkyl, or X and X1, together with the nitrogen atom connecting them, denote a 5- or 6-membered ring, X2 denotes hydrogen, halogen, alkyl, alkoxy or alkoxycarbonyl, X3 denotes hydrogen, alkyl or aryl, X4 denotes hydrogen, cyano, halogen, alkyl or alkoxy, Z denotes hydrogen, alkyl, cycloalkyl or aralkyl, D denotes an optionally hydrogenated 5- or 6-membered ring, and m and n, independently of one another, denote 0 or 1, in which a double bond is in the positions labelled with 1 and 2 when m=0 and a single bond is in these positions when m=1, and in which the rings A, B and D are the radicals X, X1, X2, X3, X4 and Z may carry non-ionic substituents which are conventional in dyestuffs chemistry, are used as color formers in pressure- and heat-sensitive recording materials.
Patent EP-0256246-A3 (EP)
IPC: C08L23/16
Filed: 1987-06-16
Abstract: An elastomer blend comprising:  
     (a) a polyolefin selected from the group consisting of (i) a 
copolymer of ethylene or propylene and silane; (ii) a silane 
modified polyethylene or polypropylene; silane grafted 
copolymer of ethylene and vinyl acetate; and a silane 
grafted copolymer of ethylene and ethyl acrylate wherein, in 
(i) through (iv), the silane is present in an amount of about 0.5 
percent to about 10 percent by weight based on the weight of 
the polyolefin; and  
     b) an ethylene-propylene-diene terpolymer rubber, with 
or without silane modification, said terpolymer rubber con­
taining about 30 to about 85 percent by weight ethylene, 
about 15 to about 70 percent by weight propylene, about 1 to 
about 10 percent diene, and 0 to about 10 percent silane, all 
percentages based on the weight of the terpolymer rubber, 
said blend having the following physical properties:  
     (i) Secant Modulus in the range of about 100 psi to about 
10,000 psi;  
     (ii) 100% Modulus in the range of about 100 psi to about 
1500 psi; and  
     (iii) Shore A hardness in the range of about 10 to about 
100.
Patent EP-0263951-A3 (EP)
IPC: C09B35/08
Filed: 1987-08-29
Abstract: Disazoverbindungen auf der Basis von 4,4′-Diaminodiphenylverbindungen, 
die mindestens 50 Gew.% einer Disazoverbindung der allgemeinen Formel 
    A-N=N-Z-N=N-B      (I)  
enthalten, in der Z für den Rest eines gegebenenfalls symmetrisch sub­
stituierten Diphenylens, A für einen Rest einer Kupplungskomponente eines 
1-Phenylpyrazolons oder eines Acetoacetarylids, worin der Phenyl- bzw. 
der Arylrest durch Sulfo- oder Carboxylgruppen substituiert ist, und B 
für einen Rest einer Kupplungskomponente auf der Basis 1-Phenylpyrazolon 
oder Acetoacetarylid, die frei von Sulfo- und/oder Carboxylgruppen sind, 
stehen.  
     Die Disazoverbindungen können durch Kupplung des tetrazotierten Diamins 
H₂N-Z-NH₂ auf die eine saure Gruppe enthaltenden Kupplungskomponente AH 
im mineralsaurem Medium und anschließender Kupplung mit BH in gepuffertem 
Medium (pH um 4) erhalten werden.  
     Die erfindungsgemäßen Disazoverbindungen sind als Zusätze zu Pigmenten, 
insbesondere Azo- und Disazopigmenten zur Verbesserung der Transparenz 
und der Temperaturstabilität der Pigmentteilchen und des Fließverhaltens 
geeignet.
Patent EP-0263330-A3 (EP)
IPC: C05F15/00
Filed: 1987-09-15
Abstract: Die Erfindung bezieht sich auf ein Verfahren zur Her­
stellung eines Komposts, der aus organischen Massen 
auch gezielt Papiere gleicher oder ungleicher Art als 
Ausgangsmaterial enthält. Dazu ist vorgesehen, daß or­
ganischer Müll aus Haushalt und/oder Gewerbe, von art­
fremden Stoffen befreit, zusammen mit Papieren in 
einem dynamischen Prozeß verrottet wird. Dabei wird be­
vorzugt, wenn bei Haushalten und Gewerbe organische 
Abfälle zusammen mit Papieren von anderen Stoffen 
gesondert gesammelt und gemeinsam fermentiert werden. 
Der Anteil an Papieren kann dabei zwischen 20 und 50%, 
vorzugsweise bei ca. 30% liegen. Die Beimischung von 
schadstoffarmen Klärschlamm und anderen bekannten 
Zuschlagstoffen ist möglich. Verweilzeit, Temperatur 
und Feuchtigkeitsgrad sind dabei regel- und einstell­
bar.
Patent EP-0251646-A3 (EP)
IPC: G11B20/02
Filed: 1987-06-23
Abstract: An audio production console has a plurality of input 
modules (11) connected between an input (in block 12 via 
buss 21) and a common output buss (22). The modules (11) 
are identical, and contain a plurality of circuits for 
carrying out functions on a signal from the corresponding 
input. A central control unit 15 is connected to each of 
the modules (11) and controls selected circuits of the 
units, to control the operation of the module. In this way 
the functions carried out by the modules (11) are freely 
selectable, and hence the switching of circuits within each 
module (11) may be simplified. This enables the normal 
separate monitor section of an audio production console to 
be omitted from each module, simplifying the module and the 
operation of the console as a whole.
Patent EP-0259057-A3 (EP)
IPC: G06F3/048
Filed: 1987-08-19
Abstract: A data assembler and serializer for use in bit 
mapped graphics systems where flexible windowing and 
panning are desired. The unit accepts display 
memory data as either one 8-bit word or two 4-bit 
words. Leading and trailing pixels not required in 
the final bit stream, as indicated by control data, 
are removed from the words. Remaining pixels are 
then shifted and concatenated to form a continuous 
stream of video data. The assembled data words are 
supplied to a FIFO buffer and from the buffer to a 
shift register for generating a serial output. 
Positioned between a display memory and a color 
palette or monitor, the system supports smooth 
panning and hardware windows on pixel boundaries.
Patent EP-0261930-A3 (EP)
IPC: B65D81/26
Filed: 1987-09-22
Abstract: A package is disclosed for natural products and 
comprises a first wall region of thermoplastic material and a 
second wall region which comprises a porous substrate 
hermetically sealed at its edges to the thermoplastic material 
and covered with a gas-permeable layer of polymethylpentene (14). 
The area of the porous substrate and its outer covering of 
polymethylpentene is selected in relation to the total area of 
the package and in dependence upon the natural products to 
permit a desired atmosphere to be maintained within the package 
as a result of respiration of the natural products and gas 
transfer through the porous substrate.
Patent EP-0247966-A3 (EP)
Title: Cylinder lock and key
IPC: E05B27/00
Filed: 1987-05-27
Abstract: A cylinder lock and key includes one or more lateral ribs extending from a flat key and formed of a shape memory material. Auxiliary lock pins arranged in a cylinder core read the shape of the lateral ribs of the key and enable the lock to be opened only when the memory material of the ribs responds to the application of energy.
Patent EP-0243305-A3 (EP)
IPC: E06B3/62
Filed: 1987-04-03
Abstract: Das Dichtungsprofil (3) weist glasseitig wenigstens zwei 
Dichtlippen (6, 7) auf. An den Ecken des Fensters ist das 
zwischen die Glasscheibe und den Fensterrahmen einzupres­
sende Dichtungsprofil (3) derart mit Einschnitten (9, 10, 
10′) versehen, dass sich wenigstens eine Dichtlippe (7) 
ununterbrochen über den Eckbereich erstreckt. Der dem Zen­
trum der Glasscheibe zugewandte Einschnitt (9) ist vorzugs­
weise etwa V-förmig ausgebildet. Mit dieser Bearbeitung des 
Dichtungsprofils werden aufwendige Klebearbeiten im Eckbe­
reich vermieden, ohne dass die Dichtwirkung beeinträchtigt 
wird.
Patent EP-0271483-A3 (EP)
Title: Process and device for protecting the inner walls of gas bottles against corrosion
IPC: F17C1/10
Filed: 1987-12-11
Abstract: 1. Method for the protection of the inner wall of gas cylinders (1), in particular for use with high purity gases, against corrosion while the gas cylinders are being transported or stored prior to their being filled with gas, characterized in that a plug (6) is provided for the gas cylinder (1) on which, or in which, respectively, a drying agent (9) is placed, whereafter the plug with the drying agent is placed into the cylinder opening with a gasket being put therebetween, and the cylinder such is held tightly closed until being filled.
Patent EP-0280190-A3 (EP)
IPC: B23Q11/04
Filed: 1988-02-18
Abstract: Bei einer Vorrichtung zum Bearbeiten von Formlingen aus 
Kunststoff mit einem im wesentlichen zylindrischen Grund­
rahmen und einer zentralen, dazu koaxialen Kurventrommel, 
die um ihre Längsachse drehar gelagert und außenseitig mit 
Arbeitskurven versehen ist, und mehreren entlang dem Umfang 
des Rahmens nebeneinander angeordneten Behandlungsstationen 
mit Werkzeugen zur Bearbeitung der Kunststoff-Formlinge 
sind die Werkzeuge von vertikal bewegbaren Schlitten 
getragen, von denen jeder durch einen in einer Kurve der 
Kurventrommel geführte Kurvenrolle auf- und abbewegt wird. 
Die Kurvenrolle wird von einem Antriebsschlitten getragen. 
Werkzeugschlitten und Antriebsschlitten sind jeweils für 
sich am Gehäuse geführt und über nicht-starre Verbindungs­
mittel miteinander verbunden. Die vertikal verlaufenden 
Führungsmittel für beide Schlitten sind in der Projektion 
auf eine Ebene senkrecht zur Bewegungsrichtung des Schlit­
tens zwischen Kurvenrolle und dem Punkt angeordnet, an 
welchem die aus der Behandlung des Formlings resultierende 
Reaktionskraft am Arbeitsschlitten angreift.
Patent EP-0280371-A3 (EP)
Title: Method of processing a cathode ray tube
IPC: H01J9/44
Filed: 1988-02-22
Abstract: In the processing of cathode ray tubes, both 
the incidence of dark center cathode and residual gas can 
be reduced by including the step of scanning the mask and 
screen of the tube with a weak, defocussed electron beam, 
carried out after getter flashing and preferably prior to 
ageing.
Patent EP-0299898-A3 (EP)
Title: Process and device for automatically cleaning air filter bags
IPC: B01D46/04
Filed: 1988-07-06
Abstract: A process for an air filter with bags in which a filtration enclosure (1) comprising a plurality of parallel cells, each comprising at least one filter bag, is subjected to reduced pressure, the air to be freed from dust is allowed to enter at one end of the enclosure, the air from which dust has been removed is extracted at the other end and the cells are deblocked in sequence, the said process being characterised in that in the case of each cell and for a predetermined time, the downstream end of the filter bags of the said cell is isolated from the source of reduced pressure and, simultaneously, atmospheric air is brought into contact with the downstream surfaces of the bags so as to create in the wall of the latter a rinsing in a direction opposite to the normal direction of filtration. Application to bag air filters. <IMAGE>
Patent EP-0298009-A3 (EP)
Title: Thermostatic switch construction
IPC: H01H37/04
Filed: 1988-03-03
Abstract: In a snap-acting thermostat with a snap disc (30), a stationary contact support carrying a stationary contact (55) and a moveable contact support arm (48) with a moveable contact (49) on it, a bumper (35) mounted for translation by the disc (30) and operatively connecting the disc (30) and the moveable contact (49) and a case (5) housing the snap disc (30), stationary contact (55), moveable contact (49) and bumper (35), interior side walls of the case (5) have guide channels (16,17) outboard of the stationary and moveable contacts (55,49). The bumper (35) has a part substantially circular in section, extending within the compass of the guide channels (16,17) outboard of the contacts (55,49). The case (5) has a closed top (6) through which two contact terminals extend, and an open bottom (14) through which the elements enclosed by the case (5) can be mounted.
Patent EP-0288411-A3 (EP)
IPC: F02C7/232
Filed: 1988-04-21
Abstract: A pressure regulating valve(10)determines a fixed 
constant pressure drop across a metering valve(16)at a 
given altitude by comparing ambient pressure with a 
vacuum. Evacuated bellows(76)reacts with changes in 
altitude to bias a poppet(54)via rod (90),adjusting 
screw(100)and lever(66)towards or away from outlet(54).
Patent EP-0296126-A3 (EP)
Title: Device for supporting and moving the work-tool table on automatic machines for polishing the rounded edges of marble, granite plates and the same
IPC: B24B9/06
Filed: 1988-05-19
Abstract: The mechanism comprises two identical articulated parallelogram mechanisms (1) located at the two ends of the tool holder table (4) and supporting it. Each of the parallelogram mechanisms is in the form of two balance arms (1a). A bar (1b) has a central hole for a pin (3) linked to the table (4). The pin passes through a gear (3a) driven by a chain or a motor unit (7).
Patent EP-0326070-A3 (EP)
IPC: G01N3/30
Filed: 1989-01-24
Abstract: Werden lackierte und unlackierte Kunststoffe im Kfz-Karosserie­
bereich eingesetzt, müssen sie auf Schlagzähigkeit im Tempera­
turbereich + 23° C bis - 30° C geprüft werden. Dies erfolgt als 
instrumentierte Schlagzugprüfung in Anlehnung an DIN 53 448, 
oder als instrumentierter Durchstoßversuch nach DIN 53 443. Lack­
hersteller und Kunststoffverarbeiter als Zulieferer der Kfz-­
Industrie sind vielfach mittelständische Betriebe. Hydraulische 
Universalprüfmaschinen, mit denen die beschriebenen Versuche 
begrenzt durchgeführt werden können, liegen sowohl in der An­
schaffung als auch im Betrieb außerhalb des Kostenrahmens dieser 
Betriebe.  
Ein Prüfmaschinensystem mit einem hydraulischen Antrieb mit den 
kennzeichnenden Merkmalen der Patentansprüche kann das Problem 
lösen.  
In einem Gehäuse (1) ist konzentrisch zu einem Arbeitskolben 
(2) ein Vorschubkolben (3) angeordnet. Öffnet das Servoventil 
(5), wird der Vorschubkolben (3) in Richtung Arbeitskolben (2) 
mit einer durch die Drossel (4) vorgegebenen Geschwindigkeit 
verschoben, und nimmt den Arbeitskolben (2) mit, wodurch die 
Schlagzugprobe (11) gedehnt und zerrissen wird. Die Druckkammer 
(7) dämpft den Aufschlag und verhindert Prellschwingungen, die 
das Kraftsignal stören würden.  
Beim Durchstoßversuch ist der Funktionsablauf gleich, nur wird 
hier die Kolbenstange (8) aus dem Gehäuse (1) gestoßen.
Patent EP-0326088-A3 (EP)
IPC: H02K15/03
Filed: 1989-01-25
Abstract: There is provided a method of preparing and bonding 
neodymium-boron-iron magnets in a motor field assembly. 
In the preferred embodiment, the neodymium-boron-rion 
magnet material is cleaned and then neutralized and 
coated in a zinc phosphate process. Advantageously, the 
zinc phosphate neutralizes surface effects of contaminants 
and provides a relatively large surface area having 
numerous mechanical interlocking sites receptive to ad­
hesives and coatings. The zinc phosphate coated magnet is 
bonded to a substrate using a flexible epoxy adhesive. 
In the preferred embodiment a durable, corrosion resistant 
coating such as amide imide is applied to the exposed, 
non-bonded surfaces of the coated magnet.  
     The resulting structure is a magnet 10 coated on all 
sides with a zinc phosphate coating 12, bonded on one 
side thereof by a flexible epoxy adhesive 14 to a sub­
strate 16 and coated on the remaining sides thereof with 
a protective amide imide layer 18.
Patent EP-0337358-A3 (EP)
Title: Percutaneous absorption type preparation and process for preparing the same
IPC: A61L15/16
Filed: 1989-04-10
Abstract: A percutaneous absorption type preparation and a process for preparing the same are disclosed. The preparation comprises a substantially drug-impermeable backing having provided thereon an adhesive layer comprising a pressure-sensitive adhesive containing therein a percutaneous absorption type drug (solid at room temperature) in an amount greater than the saturated solubility in the adhesive, wherein the excess amount of the drug greater than the saturated solubility is present in the adhesive in a continuous recrystallized state and a substantially network state.
Patent EP-0341447-A3 (EP)
IPC: G01P5/14
Filed: 1989-04-15
Abstract: Am Fahrzeug (10) sind Drucksonden (1 bis 6) angeordnet, 
deren Signale unter Bildung von Differenzen bzw. 
Differenzen-Quotienten verknüpft werden. Damit können 
von einem Rechner (11) Größen erzeugt werden, die den 
Einfallwinkel sowie den Staudruck des Seitenwindes 
widerspiegeln.
Patent EP-0347597-A3 (EP)
IPC: C08K3/00
Filed: 1989-05-23
Abstract: Filler blends of electroconductive particles with 
electrically non-conductive particles are provided which are 
useful in making electromagnetic shielding resins for 
encapsulating electronic devices.
Patent EP-0347714-A3 (EP)
IPC: A61M1/28
Filed: 1989-06-13
Abstract: Dialysier- und Spül-Lösungen zur intraperitonealen Verabreichung 
mit üblicher Elektrolytzusammensetzung in physiologischen Mengen und 
einem Aminosäuregemisch als osmotisch wirksame Substanz sowie 
gegebenenfalls zusätzlich organische Säure bzw. Salze derselben und 
gegebenenfalls weiteren Zusatzstoffen.
Patent EP-0389668-A3 (EP)
Title: Tire building drum
IPC: B29D30/24
Filed: 1989-06-20
Abstract: A novel tire building drum (10) is provided herein, which is formed of rigid synthetic plastic material. The drum is hollow, and is provided with a central core (12) adapted to be non-rotatably fixed to the rotating shaft of a conventional tire building machine. The central core (12) is connected to the interior of the hollow drum by a plurality of radially-outwardly-extending ribs (17, 30, 20, 33, 23, 36, 26 & 39) which extend along the longitudinal axis of the drum.
Patent EP-0351822-A3 (EP)
Title: Tricyclic cyclohexenyl cyclohexane derivative
IPC: C07C43/188
Filed: 1989-07-19
Abstract: A tricyclic cyclohexenyl cyclohexane derivative is 
disclosed. This compound is capable of lowering the Δn value 
of mixed liquid crystals, which have been obtained by adding 
said compound to nematic liquid crystals widely used as matrix 
liquid crystals, and elevating the N-I point thereof. Thus it 
is highly useful in the production of liquid crystal display 
cells.
Patent EP-0354395-A3 (EP)
Title: Intramedullary rod targetting device
Inventor: SOHNGEN GARY W
IPC: A61F2/46
Filed: 1989-07-20
Abstract: An intramedullary rod (20) targeting 
device for guiding drilling of distal 
fastener screw passages (24, 26) in the femur 
of a patient during the installation 
in the patient's femur of an intramedullary (20) rod is disclosed.
Patent EP-0355615-A3 (EP)
IPC: C08L51/06
Filed: 1989-08-11
Abstract: Die Erfindung betrifft leitfähige Abmischungen aus 
Polyarylensulfiden (PAS), vorzugswiese Polyphenylen­
sulfid (PPS) mit Kautschuken, leitfähigem Ruß und 
Graphit.
Patent EP-0358974-A3 (EP)
IPC: C01G29/00
Filed: 1989-08-17
Abstract: Film of a compound metal oxide of a 
specific composition can be formed by dissolving 
organic acid salts of Bi, Ca, Sr and Cu in the 
same content ratio with respect to metals as that 
in the object compound in a solvent which dissolves 
all of said salts, coating a substrate with the 
thus formed solution and subjecting the substrate 
to heat-treatment at a temperature between 750°C 
and 900°C. The thus formed film is free from voids 
or unreacted phases and is of high density.
Patent EP-0363795-A3 (EP)
IPC: C08F4/40
Filed: 1989-10-04
Abstract: Herstellung von Polymerisaten aus olefinisch ungesättigten Monomeren in 
wäßrigem Medium mit Hilfe eines in diesem Medium löslichen 
radikalbildenden Initiatorsystems aus einem Oxidationsmittel, einem 
Reduktionsmittel und einem Eisensalz, indem man zusätzlich zu diesem 
eisenhaltigen Redoxinitiatorsystem ein entsprechendes Redoxinitiatorsystem 
verwendet, welches ein Vanadinsalz enthält sowie Absenkung des Gehaltes an 
olefinisch ungesättigten Restmonomeren in wäßrigen Polymermischungen oder 
-lösungen nach diesem Verfahren.
Patent EP-0371470-A3 (EP)
Title: Method for recording and erasing a visible image on a card
IPC: B42D15/10
Filed: 1989-11-29
Abstract: A method for recording and erasing a visible image on 
a card having a recording area with a smooth surface of a 
synthetic resin, which comprises a step of subjecting the 
smooth surface in the recording area to frosting 
treatment at a temperature within a range of from the 
glass transition temperature to the melting point of the 
synthetic resin, to form a frosted surface having a 
strain, and a step of defrosting the frosted surface by 
heating it at a temperature higher than the temperature 
for the frosting treatment, to return it to a smooth 
surface, whereby a visible image is formed in the 
recording area by the contrast between the frosted 
surface and the smooth surface.