baber/WOPTO huggingface dataset:
Patent IT-RM940588-A1 (IT)
Title: Filtro piatto e relativo elemento di supporto
Inventor: GOOSSENS GUNTER
IPC: B01D/
Filed: 1994-09-16
Abstract: L'invenzione si riferisce ad un elemento di supporto di filtro (1) per supportare mezzi di filtro in filtri piatti, consistente di un organo composito dimensionalmente stabile comprendente strati (da 3 a 11) che sono sovrapposti in ranghi, presentano una struttura reticolata a maglie grosse, sono rigidamente intercollegati e consistono di elementi a forma di fili con una sezione retta affusolata. Secondo l'invenzione, la larghezza delle maglie e/o gli spessori degli elementi a forma di fili aumentano nella direzione del flusso e lo strato reticolato superiore (4) presenta una larghezza delle maglie inferiore alla dimensione minima della particella più fine del mezzo di filtro (2). Inoltre, questo strato a maglie fini (4) viene protetto per mezzo di una struttura reticolata (3) avente una larghezza delle maglie più grossolana e/o un maggiore spessore dei suoi elementi a forma di fili. L'invenzione inoltre si riferisce ad un filtro piatto nella cui camera l'elemento di supporto secondo l'invenzione viene inserito in modo tale che non rimanga alcuno spazio fra il canale (13) che riceve l'elemento di supporto e lo stesso elemento di supporto (1).(Figura 1).
Patent IT-RM950407-A1 (IT)
Title: Motore a due tempi con lavaggio del basamento.
Inventor: GLOVER STEPHEN BRIAN
IPC: F02B33/30
Filed: 1995-06-16
Abstract: Un motore a due tempi del tipo che ha il lavaggio del basamento comprende un pistone (8) montato mobile alternativamente in un cilindro (2) un'apertura di scarico (22), un'apertura di ammissione (16) disposta in maniera da alimentare aria di combustione al basamento (14) ed una apertura di trasferimento che comprende due o più passaggi di trasferimento (24, 26) che si estendono tra il basamento (14) ed il cilindro (2). L'apertura di trasferimento (24, 26) è disposta in maniera da aprirsi prima che si chiuda l'apertura di scarico (22), per cui, durante la utilizzazione, si ha il lavaggio del cilindro. Mezzi di dosaggio del carburante (28) sono in comunicazione con almeno uno (24) ma non con tutti i passaggi di trasferimento e sono disposti per alimentare carburante in detto passaggio di trasferimento (24) ad una velocità che è determinata direttamente dalla velocità di flusso della massa di aria attraverso l'apertura di ammissione (16). I mezzi di dosaggio del carburante (28) comprendono una valvola di dosaggio (30, 32) connessa a mezzi di attuazione (50), che sono disposti per modulare la valvola in risposta alla velocità del flusso di massa dell'aria attraverso l'apertura di ammissione (16) e mezzi di alimentazione del carburante (34, 36, 38, 40) disposti in maniera da alimentare carburante sotto pressione in continuo alla valvola di dosaggio (30, 32). Il passaggio di trasferimento (24) comprende una valvola di non ritorno (60) disposta per impedire il flusso di carburante dal passaggio di trasferimento (24) nel basamento (16).
Patent IT-RM950492-A1 (IT)
Title: Sistema di alimentazione di combustibile per un motore a due tempi ad  iniezione di combustibile.
Inventor: HALL DAVID J
IPC: F02M37/12
Filed: 1995-07-18
Abstract: Viene qui descritto un sistema di alimentazione di combustibile per un motore a combustione interna comprendente un serbatoio di combustibile a distanza, una prima pompa di combustibile azionata dal basamento includente una camera di pompaggio di combustibile avente un'entrata di combustibile comunicante con il serbatoio di combustibile ed un'uscita di combustibile, un separatore di vapore includente un'entrata di combustibile comunicante con l'uscita della prima pompa di combustibile, un'uscita di vapore di combustibile, un'uscita di combustibile liquido ed un'entrata di combustibile di ritorno, una seconda pompa di combustibile azionata dal basamento includente una entrata di combustibile comunicante con l'uscita del separatore di vapore, ed un'uscita di combustibile, ed un iniettore di combustibile includente un ugello atto a comunicare con una camera di combustione, un'entrata di combustibile comunicante con l'uscita di combustibile della seconda pompa di combustibile, ed un'uscita di ritorno comunicante con l'entrata di combustibile di ritorno del separatore di vapore.
Patent NO-20101110-A1 (NO)
Title: Fremgangsmater og systemer med anvendelse av maksimal entropi
Inventor: WILLIAMS MICHAEL JOHN
IPC: G06F17/18
Filed: 2010-08-05
Abstract: Teknikker for en maksimum entropibasert metode for å tilordne sannsynligheter, omfattende de som anvendes i systemer og fremgangsmåter for historietilpasning basert på flere realiseringer, er beskrevet. For eksempel omfatter i en utførelsesform en fremgangsmåte det å innhente en eller flere tilgjengelige samplingsverdier Yi i tilknytning til et reservoar; beregne en maksimum entropitilordning Å av en eller flere diskrete sannsynligheter Pi(Yi) for hver av den ene eller de flere tilgjengelige samplingsverdiene Yi, der hver diskrete sannsynlighet Pi(Yi) representerer sannsynligheten for at en eller flere variabler Y vil ta et sett av gitte verdier Yi; og fatte minst en beslutning vedrørende reservoaret med bruk av maksimum entropitilordningen A, omfattende å tilnærme en kontinuerlig sannsynlighetsfordeling P(Y) med bruk av en sum av sannsynlighetsfordelinger Pi(Yi)+/-A.
Patent NO-20111211-A1 (NO)
Title: Blanding av uorganiske forbindelser, preparater inneholdende forbindelsene og anvendelse av forbindelsene
Inventor: ERITZLAND RUNE
IPC: A61K8/19
Filed: 2011-09-07
Abstract: Mineralblanding omfattende i det minste MgO og dennes likevekt med Mg(OH)2, og MgCl2, hvor MgO- Mg(OH)2 utgjør mellom 85 og 99, 99 vektprosent; og MgCl2 utgjør mellom 0,01 og 15 vektprosent av magnesiumforbindelsene i mineralblandingen. Det beskrives også preparater inneholdende saltblandingen og anvendelse av mineralblandingen for produksjon av et farmasøytisk preparat for prevensjon eller terapi av en tilstand hvor tilstanden er uønsket eksem eller psoriasis.
Patent NO-20130816-A1 (NO)
Title: Elektromagnetiske malinger med en sensorkabel med forbedrede egenskaper
Inventor: COMBEE LEENDERT
IPC: G01V3/165
Filed: 2013-06-11
Abstract: Å undersøke en undergrunnsstruktur med en gruppe med flere enn to EM-mottakere i et intervall som er målaksialavstanden langs en sensorkabel for å skaffe et elektromagnetisk (EM)-målesignal over EM- mottakerne med en målaksialavstand. Avstanden mellom minst en av de suksessive EM-mottakerne i en gruppe er mindre enn målaksialavstanden. EM- målingene skaffes ved bruk av EM-mottakere i gruppen.
Patent NO-20131231-A1 (NO)
Title: Termisk kompensert apparat for tilpasning av ventiler
Inventor: RICHARDSON JONATHAN W
IPC: F16K1/48
Filed: 2013-09-12
Abstract: Termisk kompensert ventiltilpasningsapparat er beskrevet. Et eksempelventiltilpasningsapparat inkluderer en ventilplugg med en utsparing, en foring festet i utsparingen og med en åpning deri. Foringen er laget i et materiale med en høyere styrke enn et andre materiale i ventilpluggen. Eksempelventiltilpasningsapparatet inkluderer også en ventilspindel med en gjenget ende arrangert i åpningen til foringen for å danne en ventilspindelforbindelse, og et avstandsstykke operativt koblet til ventilpluggen og ventilspindelen for å påvirke lasten påført på ventilspindelforbindelsen som respons til en endring i temperatur.
Patent NO-20160960-A1 (NO)
Inventor: HINDSGAUL KIM
IPC: G07F11/02
Filed: 2016-06-03
Abstract: A vending machine for seiling or dispensing products to a user, including a casing (10) for storing and displaying the products (30, 31). The casing (10) has side walls (21), a transparent portion (14) which måkes the products (30, 31) visible from outside the casing (10), and an aperture (15) for removing one or more products (30, 31) by hand. An aperture access enabling device (19) selectively enables or prevents access through the aperture (15) into the casing (10), and a weight recognition module (61) with one or ore weight sensors (24) recognizes products (30, 31) that are added to or removed from the vending machine. The one or more weight sensors (24) are positioned at the bottom of the casing (10), and a container (32) is positioned on top of the weight sensors (24). The container (32) has a base (52) and outer walls (50) that are substantially parallel With the side walls (21) of the casing (10) without interfering with the side walls (21).
Patent PE-12297-A1 (PE)
Title: Articulo absorbente que tiene propiedades mejoradas
Inventor: ANDERS GUSTAFSSON
IPC: A61F13/49
Filed: 1995-12-28
Abstract: QUE COMPRENDE: A) UNA HOJA EXTERIOR PERMEABLE AL LIQUIDO DISPUESTA SOBRE UNA PRIMERA SUPERFICIE DEL ARTICULO; B) UNA HOJA EXTERIOR IMPERMEABLE AL LIQUIDO DISPUESTA SOBRE UNA SEGUNDA SUPERFICIE DEL ARTICULO; Y C) UN CUERPO ABSORBENTE QUE ESTA ENCERRADO ENTRE LAS DOS HOJAS ENVOLVENTES Y QUE INCLUYE UN ESPACIO RECEPTOR PARA LIQUIDO CORPORAL QUE COMPRENDE AL MENOS UNA CAVIDAD O REGION DE DENSIDAD MAS BAJA QUE LA DENSIDAD DE UNA PARTE DEL CUERPO ABSORBENTE, SITUADA ADYACENTE AL ESPACIO RECEPTOR Y QUE SE EXTIENDE GENERALMENTE EN EL MISMO PLANO QUE ESTE, CARACTERIZADO PORQUE EL ESPACIO RECEPTOR ESTA DISPUESTO EN UNA CAPA DE ALMACENAMIENTO EN EL CUERPO ABSORBENTE; Y PORQUE PARTES DE LA CAPA DE ALMACENAMIENTO ADYACENTES A LA CAPA RECEPTORA INCLUYEN UN MATERIAL QUE AL SER MOJADO AUMENTA DE VOLUMEN EN DIRECCION GENERALMENTE PERPENDICULAR A LA PRIMERA SUPERFICIE DEL ARTICULO. SE USA EN PANALES, PROTECTORES DE INCONTINENCIA Y SIMILARES
Patent PL-267813-A1 (PL)
Title: The method of self-supporting ceramic solid body and a self-supporting ceramic solid body
IPC: C04B35/65
Filed: 1987-09-17
Abstract: There is disclosed a method for producing a self-supporting ceramic body by oxidation of a molten precursor metal with a vapor-phase oxidant to form an oxidation reaction product and inducing a molten flux comprising said molten precursor metal through said oxidation reaction product. A second metal is incorporated i  said molten flux during the oxidation reaction. The resulting ceramic body includes sufficient second metal such that one or more properties of said ceramic body are at least partially affected by the presence and properties of said second metal.
Patent PL-285383-A1 (PL)
Title: Polymeric composition for making biodegradable plastic products and method of obtaining such composition
Inventor: BASTIOLI CATIA
IPC: C08L3/02
Filed: 1990-05-29
Abstract: A polymer composition usable for the production of articles of biodegradable plastics material includes an ethylene/vinyl alcohol copolymer and destructured starch. Preferably, the composition is obtainable by mixing the ethylene/vinyl alcohol copolymer, in a heated extruder, with a starch component constituted by a destructured starch composition produced beforehand by mixing starch with a high-boiling plasticizer, such as glycerine and a destructuring agent, preferably constituted by urea, in an extruder. Alternatively, the composition can be obtained by mixing the ethylene/vinyl alcohol copolymer with starch and a plasticizer in an extruder, with water added as appropriate and possibly with a suitable destructuring agent. The composition is particularly useful for the production of films with good resistance to perforation and tearing and moulded articles with improved mechanical strength. The products made from this composition are also good oxygen and carbon dioxide barriers.
Patent PL-310225-A1 (PL)
Title: Novel derivatives of alkyl-benzoyl guanidine, method of obtaining them and pharmaceutic preparation and method of preparing same
Inventor: GERICKE ROLF
IPC: C07C317/44
Filed: 1995-08-30
Abstract: Alkylbenzoyl guanidine derivs. of formula (I) and their salts are new. R1 = A, CF3, CH2F, CHF2, C2F5, CN, NO2, halo, C  IDENTICAL  CH or XR4; R2, R3 = H, halo, A, XR4, CN, NO2, CF3, CH2F, CHF2, C2F5, CH2CF3, Ph, OPh or Het; R4 = H, A, 5-7C cycloalkyl, 6-8C cycloalkylmethyl, CF3, CH2F, CHF2; Alk = 1-8C alkyl, 3-8C cycloalkyl (opt. substd.); Het = mono- or binuclear opt. unsatd. or aromatic heterocycle contg. 1-4 N, O and/or S, bonded via N or C (opt. substd.); A = 1-6C alkyl; halo = F, Cl, Br or I; X = O, S or NR5; Ph = phenyl opt. substd.
Patent PL-314427-A1 (PL)
Title: Soil sealing method
Inventor: KUEGLER JOST-ULRICH
IPC: C09K17/02
Filed: 1995-09-18
Abstract: Process for sealing ground formations, in which a mineral sealing layer of cohesive earth and an additive is coated on the ground formation and then mechanically compacted, is novel in that dry clear or aq. sludge with a dry substance content of at least 70 wt. % in an amt. of 5-50 wt. % based on sludge dry substance and calculated on the dry wt. of the earth is used as the additive.
Patent PL-316383-A1 (PL)
Title: Surface finishing apparatus for car bodies
Inventor: HECKMANN NORBERT
IPC: B05C3/10
Filed: 1995-03-24
Abstract: PCT No. PCT/EP95/01125 Sec. 371 Date Dec. 12, 1996 Sec. 102(e) Date Dec. 12, 1996 PCT Filed Mar. 24, 1995 PCT Pub. No. WO95/26311 PCT Pub. Date Oct. 5, 1995In a simple car body surface treatment device, the car body (16) is brought into and taken out of the treatment bath (1) exclusively by rotation of a revolving device (2). The car body (16) arranged on a loading carriage (11) is detachably connected to the revolving device (2). In addition, conveyors (12, 13, 17, 18) are provided for carrying the loading carriage (11) on to or away from the revolving device (2). The device is characterized by the conveyors (12, 13, 17, 18) being located outside of the treatment bath (1). The conveyors (17, 18) located in the area of rotation of the revolving device (2) may be moved out of and into this area.
Patent PL-321960-A1 (PL)
Title: Method of phosphate treating incuding final washing with metal solutions
Inventor: WICHELHAUS WINFRIED
IPC: C23C22/83
Filed: 1996-03-20
Abstract: A process for phosphating metal surfaces in which a nitrite- and nickel-free zinc-containing phosphating solution is applied to the metal surfaces which, if desired, are then rinsed and subsequently after-rinsed with an aqueous solution with a pH value of 3 to 7 which contains 0.001 to 10 g/l of one or more of the cations of Li, Cu and Ag.
Patent PL-323628-A1 (PL)
Title: Amorphous coloured panel made of crystallisable thermoplastic material
Inventor: MURSCHALL URSULA
IPC: B29C48/90
Filed: 1996-05-21
Abstract: The invention relates to an amorphous, dyed plate with a thickness in the 1 to 20 mm range, in which the main component is a crystallisable thermoplastic and at least one organic and/or inorganic dye, a process for its production and its use. The plate of the invention may also contain a u/v stabiliser.
Patent PL-337361-A1 (PL)
Title: Chalkones of antiproliferative activity
Inventor: BOMBARDELLI EZIO
IPC: A61K31/40
Filed: 1998-06-12
Abstract: PCT No. PCT/EP98/03558 Sec. 371 Date Dec. 8, 1999 Sec. 102(e) Date Dec. 8, 1999 PCT Filed Jun. 12, 1998 PCT Pub. No. WO98/58913 PCT Pub. Date Dec. 30, 1998The invention relates to a novel class of compounds that have structures related to certain naturally occurring or synthetic chalcones. The invention also relates to pharmaceutical compositions comprising the compounds and methods for treating certain disorders using the pharmaceutical compositions. The invention further relates to process for synthesizing the novel class of compounds.
Patent PL-339351-A1 (PL)
Title: Tarpaulin reinforcement
IPC: D04H3/04
Filed: 1998-05-08
Abstract: A fabric for reinforcement of canvasses having a plastic coating includes a warp and a weft which form meshes. The meshes have a maximum dimension ranging from 5 cm to 30 cm with at least one of the warp or the weft being formed by a strip which comprises a matrix of a thermoplastic material which is adherable to the plastic coating of the canvasses. The strip includes two or more elongated metal members and has a cross-sectional average thickness ranging from 0.50 mm to 3.0 mm and a cross-sectional width ranging from 3 mm to 25 mm. The metal members provide the canvasses sufficient resistance against the cutting action of a knife or against the action of a pair of shears.
Patent PL-350612-A1 (PL)
Title: Refuse collection container
Inventor: SKONAGER JENS PETER
IPC: B65F1/14
Filed: 1999-06-22
Abstract: A refuse collection container (1), (Figs. 1-3) is embodied with a hand grip (13), which is mounted displaceably in the upward and downward directions on a rearward limiting surface (6) of the container (1) between an upper operational position in which the upper part (14) of the hand grip is raised a distance above the top edge (9) of the container (1) and a lower position in which the upper part (14) of the hand grip is approximately level with the edge (9) as there are means (19-23 and 27), (Fig. 4) co-operating with the upper edge (9) for the locking - and unlocking - of the hand grip (13) in the upper position. The hand grip does not obstruct the opening and closing of lids (12) on the top of the container nor the charging of material. Furthermore, a space problem is avoided during the storing and transportation of containers.
Patent PL-355307-A1 (PL)
Title: Union piece for connecting a helically corrugated metal tube with a pipe union
Inventor: HOMANN JOERN
IPC: F16L25/00
Filed: 2002-08-01
Abstract: Connection between the end of a metal tube (1) having a screw-like thread and a connecting piece (4) comprises a pressure ring (2) with a corresponding thread (2a) screwed onto the end of the metal tube. The pressure ring has a sleeve-like adapter (2b) having an internal thread (2c) and a greater internal diameter than the metal tube thread. The connecting piece with its outer thread (4a) on its outer surface is screwed into the internal thread of the sleeve-like adapter. The connecting piece has a hollow cylindrical adapter (4b) protruding into the end of the metal tube and an outer diameter that is the same or slightly smaller than the internal diameter of the metal tube. A hollow space in which a graphite sealing ring (3) is arranged is formed between the pressure ring, the sleeve-like adapter, a side surface of the connecting piece, and the end of the metal tube. The sealing ring is compressed on screwing on the connecting piece and completely fills the subsequent ly reduced hollow space.
Patent PL-358485-A1 (PL)
Title: Surveillance and remote alarm system for persons subject to limitation of freedom of movement
Inventor: BOCCACCI ROBERT
IPC: G07C9/00
Filed: 2000-12-13
Abstract: A surveillance and remote alarm system for persons subject to limitation of freedom of movement includes a fixed unit placed in the area within which the person can move and a personal bracelet element attached to the person subject to limitation of freedom of movement. The fixed unit is arranged to establish an electromagnetic connection with the personal element and a connection via a telephone line to an operations center. The fixed unit is equipped with a CPU associated with a fingerprint reader and a radio receiver arranged to interact with a similar radio transmitter fitted in the personal element together with a CPU that controls its operation. A sensor is provided to detect any interruption and/or anomalies in the connection between the fixed unit and the personal element and to send an alarm to the operations center.
Patent PL-372447-A1 (PL)
Title: Optically variable element
Inventor: SCHILLING ANDREAS
IPC: G07D7/12
Filed: 2003-05-09
Abstract: The present invention relates to an optically variable element having surface portions with achromatic surface structures and different scatter, diffraction and reflection characteristics. The achromatic surface structures are combined with a thin-film structure, whereby upon turning or tilting the optically variable element, it is not the impression of a continuous color transition, but a defined, almost discrete color change that is produced for the viewer.
Patent PL-378915-A1 (PL)
Inventor: SIEPENKORT GERHARD
IPC: E21C35/08
Filed: 2006-02-08
Abstract: Wynalazek dotyczy konstrukcji mechanizmu przyłączeniowego do pozycjonowania płaszczyzny urabiania maszyny urabiającej, zwłaszcza struga węglowego, znajdującego zastosowanie przy eksploatacji ścianowej pokładów węgla w górnictwie podziemnym. Mechanizm przyłączeniowy (8) posiada dwa, równoległe względem siebie i wyposażone w otwory sworzniowe (11) na sworzeń przegubowy (7) ramiona (10), które połączone są ze sobą podstawą. Wewnętrzne powierzchnie tych ramion (10) biegną ku powierzchniom czołowym (21) poprzez ścięcia (20) bądź sfazowania. Ścięcia (20) lub sfazowania rozciągają się na obszarze co najmniej 180° wokół otworów sworzniowych (11), natomiast ścięcie (20) lub sfazowanie usytuowane jest w stosunku do strefy środkowej wewnętrznej powierzchni pod kątem zawartym między 20° a 35°. Przyłącze przegubowo-korytkowe składa się z co najmniej jednego segmentu (16) mogącego stanowić jednoczęściowy element składowy korpusu podstawowego mechanizmu przyłączeniowego (8) oraz przynajmniej jeszcze jednego segmentu (18) łączonego z korpusem podstawowym za pomocą złącza śrubowego (17).
Patent PL-396067-A1 (PL)
Inventor: ZIAJA EDWARD
IPC: F01K13/02
Filed: 2011-08-23
Abstract: Przedmiotem wynalazku jest sposób automatycznej regulacji mocy czynnej i częstotliwości cieplnych bloków energetycznych, uczestniczących w automatycznej regulacji częstotliwości i salda wymiany mocy krajowego systemu elektroenergetycznego. Sposób regulacji bloków energetycznych tworzących blok zastępczy i uczestniczących w regulacji grupowej, w którym wykorzystuje się tryby pracy bloków energetycznych "prowadzi kocioł" lub "prowadzi turbina", charakteryzuje się tym, że spośród bloków energetycznych do pracy w grupie wybiera się bloki pracujące na wspólne szyny zbiorcze i równocześnie w trybie "prowadzi kocioł" tworząc z nich blok zastępczy, regulowany regulatorem grupowym mocy czynnej (NRZRG), którego wartość uchybu mocy minimalizuje się przełączając przemiennie struktury bloków z trybu "prowadzi kocioł" na tryb "prowadzi turbina", a przy przełączaniu struktur bloków uwzględnia się wartość uchybu mocy regulatora grupowego, uchybu mocy i uchybu ciśnienia pary świeżej bloków energetycznych pracujących w grupie oraz znaki tych wielkości. Sposobem regulacji uzyskuje się wymaganą przepisami dokładność regulacji mocy czynnej bloku zastępczego, zmniejsza się liczbę zbędnych procesów regulacji, ułatwia spełnienie wymagań dotyczących ekologii oraz likwiduje się znaczącą część zakłóceń wewnętrznych bloku zastępczego, nie przenosząc ich do systemu elektroenergetycznego.
Patent PL-403012-A1 (PL)
Inventor: Skupiński Wincenty
IPC: C08G63/08
Filed: 2013-03-06
Abstract: Sposób otrzymywania α,ω-dihydroksylowych pochodnych polikaprolaktonu o wzorze ogólnym H-[Ax]-O-R-O-[By]-H, w którym A i B oznaczają grupę -O-(CH2)5-CO, R oznacza alkil o co najmniej dwóch atomach C, x, y są liczbami naturalnymi wynoszącymi odpowiednio x ≥ 1, y ≥ 0, w reakcji polimeryzacji ε-kaprolaktonu w rozpuszczalniku organicznym lub bez rozpuszczalnika, w obecności inicjatora, polega na tym, że reakcję polimeryzacji prowadzi się w obecności kompleksów tytanu(IV) jako inicjatorów polimeryzacji o wzorze ogólnym [Z2(L)Ti]2(ORO), w którym ligand L oznacza grupę cyklopentadienylową lub pentametylocyklopentadienylową, Z oznacza F, Cl, Br, J, zaś R ma wyżej podane znaczenie, w temperaturze od 100°C do 160°C, przy czym stosunek molowy Ti do monomerów wynosi od 1:10 do 1:1000. Otrzymane α,ω-dihydroksylowe pochodne polikaprolaktonu znajdują zastosowanie w syntezie wielu polimerów jako składnik poliolowy, np. w syntezie poliuretanów, poprawiając m.in. ich biodegradację.