baber/WOPTO huggingface dataset:
Patent FI-130131-B (FI)
Title: Precursor container
Inventor: BLOMBERG TOM
IPC: C23C16/455
Filed: 2021-09-07
Granted: 2023-03-09
Abstract: Precursor container (100, 300), comprising a first volume formed by a first chamber (104, 304) to house precursor material (105, 305), a second volume formed by a second chamber (102, 302) and separated from the first volume by a partition wall (107, 307), and a conduit (103, 303) passing through the partition wall (107, 307) and extending from the first volume to the second volume providing the precursor material (105, 305) housed within the first volume with a route to the second volume following a pressure increase in the first volume. The partition wall (107, 307) is a gas-permeable wall allowing gas from the first volume to permeate to the second volume.
Patent HK-1045047-B (HK)
Title: Transmission of gsm circuit-switched data over a cdma link
Inventor: RON NEVO
IPC: H04L12/66
Filed: 2002-08-29
Abstract: In a GSM mobile wireless telecommunications system (20), a method for conveying data from terminal equipment (46) to a network (48) via a CDMA air interface, including receiving the data as input from the terminal equipment (46) and transmitting the data at a CDMA data transfer rate over the CDMA air interface. The data are transferred to the network (48) over a GSM A-interface using a GSM circuit switched data protocol.
Patent HK-1045745-B (HK)
Title: Method and apparatus for adaptive class tap selection according to multiple classification
Inventor: KONDO TETSUJIRO
IPC: H04N19/895
Filed: 2002-09-28
Abstract: A method, apparatus, and article of manufacture for restoring a deteriorated signal to an undeteriorated signal. A deteriorated signal consists of a plurality of deteriorated and undeteriorated data points. For each deteriorated data point, a plurality of class types is created based upon characteristics of the area containing the deteriorated data point. The data point is classified with respect to one of the plurality of class types and assigned a corresponding input signal class. The undeteriorated signal is generated by adaptively filtering the deteriorated input signal in accordance with the input signal classification result. More than one classification method is used to create the plurality of class types. Created classes may include a motion class, an error class, a spatial class or a spatial activity class. An adaptive class tap structure is used to create the plurality of class types for improvement of classification quality. The spatial class taps can be selected adaptively according to the motion and or error class. The spatial activity class taps can be selected adaptively according to the motion and or error class.
Patent HU-182868-B (HU)
Title: Fungicide compositions containing synergistic mixture of triadimefon and chlortalonyl
Inventor: SCHWER JOSEPH F
IPC: C07D249/08
Filed: 1978-12-22
Abstract: A synergistic fungicidal composition containing as active ingredients appropriate amounts of each of triadimefon, or salts thereof, and chlorothalonil is described herein. Also described is a method for treating fungal infections of cultivated plants, especially cereals, using the synergistic fungicidal composition.
Patent HU-180289-B (HU)
Title: Process for producing s-triasihe derivatives
Inventor: DOUGLAS H GEORGE
IPC: C07D401/04
Filed: 1979-11-13
Abstract: Novel s-triazine compounds are prepared as derivatives of the corresponding amidinourea and amidinothiourea compounds by reacting with an activated form of an acid amide to give substituted s-triazinones and thiones respectively, of the formula   <IMAGE> The s-triazinones and thiones are useful derivatives in analyzing for the corresponding amidinourea or amidino thiourea precursors and also have useful pharmacological properties which make them suitable for a variety of medicinal purposes including use as antidiarrheal agents.
Patent IL-278369-B (IL)
Title: Scooter with automatic tilt of the steering post
Inventor: NIRI KLIER
Filed: 2020-10-28
Abstract: A scooter apparatus including a steering assembly having a pivotable steering post having a pivotal axis; a handle-bar securely attached to the steering post; a pair of front wheels; a steering mechanism configured to steer the front wheels; a wheel s-pivoting-mechanism configured to pivot the pair of front wheels; and a steering-tilt assembly configured to synchronously tilts the steering post towards the inside periphery of the turning curve, when pivoting the steering post. The rate of the tilt of the steering post, towards the inside periphery of the turning curve, is proportionally related to the pivoting rate of the steering post, and configured to vary depending on speed. The scooter further includes a deck assembly having a standing board and a rear wheel assembly. An interface assembly interconnecting the deck assembly with the steering assembly. The scooter is foldable and may include a detachable bag.
Patent IT-1249164-B (IT)
Title: Device with operating knob suitable for adjusting the spring fitted in armchairs with rocking seats and backrests
Inventor: ZAPPA GIANPIETRO
IPC: A47C/
Filed: 1991-02-19
Granted: 1995-02-18
Abstract: The present invention relates to a new device, provided with a knob or handwheel, suitable for manual adjustment of the spring which controls the rocking surface carrying the seat of a chair or armchair, wherein the said handwheel, located in the correct position and easily accessible, is used and operated directly by the person concerned and therefore in accordance with the requirements and the weight of the person using it. <IMAGE>
Patent IT-1252810-B (IT)
Title: Single-use syringe for hypodermic injections having an automatically retracting plunger which contains the hypodermic needle after its use
Inventor: NACCI GAETANO
IPC: A61M/
Filed: 1991-10-08
Granted: 1995-06-28
Abstract: A syringe is described, having a coupling device which can be operatively connected, at the end of the piston's travel, to the hypodermic needle and to a mechanical or pneumatic actuator, preferably of vacuum type, in which said actuator is activated at the moment of use of the syringe itself and is able to automatically retract, after use, said needle into an appropriate chamber of the piston, rendering it nonreusable and avoiding dangerous accidental wounding. <IMAGE>
Patent IT-1259641-B (IT)
Title: Method for the fabrication of hollow wires of precious metal
IPC: A44B/
Filed: 1992-04-03
Granted: 1996-03-25
Abstract: A method for the fabrication of hollow wires of precious metal, comprising a next to last phase of drawing or rolling of the coupled wirelike work and a final phase of chemical dissolving of the internal metal support, which comprises, previously, the following operations in order: making an insert of nonprecious metal in the form of a profiled piece with a broad wing 22 of rectangular cross section and a core whose cross section is a mixed-linear profile, with a bulb 23 and a rib 25 axially emerging from the bulb 23; placing onto a sheet 1 of precious metal the wing 22 of said profiled piece 2, with the edges 20 parallel and equally spaced from the longitudinal edges 10 of the sheet 1; tightly bending with a 90 degree double bend the longitudinal flaps 11 of the sheet 1 projecting from the profiled piece 2 about the edges 20 of the wing 22, while the remaining portion is kept adhering to the wing 22, so as to obtain a true and proper folded seam; bending inwards the wing 22 of the coupled piece 3 thus obtained, around and against the bulb 23 and in such a way that the folded edges 11 of the sheet 1 adhere strongly to the flanks 250 of the rib 25 and to the adjacent zones 200 of the bulb 23. <IMAGE>
Patent IT-1257467-B (IT)
Title: Metodo per l'azionamento sincronizzato di unita' operative, in particolare a funzionamento alternato, per mezzo di un comune motore principale e dispositivo per la sua attuazione.
Inventor: BALBONI ALESSANDRO
IPC: F16D/
Filed: 1992-12-23
Granted: 1996-01-25
Abstract: Il metodo ed il dispositivo secondo l'invenzione per l'azionamento sincronizzato di unità operative, in particolare di più unità operative a funzionamento alternato provvista di un gruppo (T) di trasformazione del moto continuo in moto alternato, per mezzo di un comune motore principale a funzionamento continuo, prevedono che il moto continuo del motore principale (1) venga trasmesso a ciascuna unità operativa (U) per mezzo di un rotismo epicicloidale (2) comprendente almeno due ruote d'estremità (14, 16) ed almeno un portasatellite (9), con almeno un satellite (13) dinamicamente collegato alle dette due ruote d'estremità (14, 16). Il rotismo epicicloidale (2) viene controllato da un motore di comando (3) per l'azionamento a rotazione di uno dei detti tre elementi (9, 14, 16) del rotismo epicicloidale (2) stesso, in modo tale per cui una variazione del numero di giri del motore di comando (3) determina, mediante una variazione del rapporto di trasmissione, l'accoppiamento e/o il disaccoppiamento sincronizzato fra la rispettiva unità operativa (U) ed il motore principale (1) o l'inversione della trasmissione.
Patent IT-1249313-B (IT)
Title: Programmable peripheral station for data acquisition
Inventor: BADALAMENTI BENEDETTO
IPC: G01V/
Filed: 1991-05-23
Granted: 1995-02-22
Abstract: Programmable peripheral station for the acquisition and long-distance transmission of geochemical data, essentially comprising a power supply card 1, a microprocessor card 2 with a plurality of alarm inputs, containing a connector 8 for connection to a recorder for reading or writing the stored data, a connector 9 for direct communication with a computer, a card 3 with a plurality of analog inputs and digital outputs, a modem card 4 for converting the digital signals to SKF type signals suitable for the input of a radio transceiver and vice versa, and an expansion card 5 if necessary. <IMAGE>
Patent IT-1248029-B (IT)
Title: Process of extracting a signal synchronous with the frequency of an amplitude- or angle-modulated carrier
Inventor: MARENGON ROBERTO
IPC: H04B/
Filed: 1991-06-11
Granted: 1995-01-05
Abstract: The invention relates to a process of extracting a signal (Fref) synchronous with the frequency (Fr) of an amplitude- or angle- modulated carrier, in which the carrier is transmitted by a reference transmitter and received by a conventional heterodyne receiver, which is suitably modified. The resulting synchronization signal (Fref) is locked directly to the nominal frequency (Fr) of the transmitter, independently of any angle or amplitude modulation imparted by an audio signal. This process provides a synchronization quality which is markedly better than that of systems used at present, for example those which attach a low frequency synchronization signal to a radio carrier. <IMAGE>
Patent IT-1256628-B (IT)
Title: Distributore di sostanze fluide, con testa deformabile
IPC: B05B11/00
Filed: 1992-12-04
Granted: 1995-12-12
Abstract: Un distributore di sostanze fluide, con testa deformabile (1) comprendente un contenitore (2) delimitante una camera (3) allungata atta a contenere la sostanza fluida e chiusa ad una estremità (3A) da un pistone ed all'altra estremità da una parete fissa trasversale (6) da cui si estende in una camera di compressione (10) prevista superiormente al contenitore almeno una appendice allungata (13) la cui estremità libera (13A) è posizionata in corrispondenza di almeno un foro (14) ricavato in un cappuccio deformabile (9) delimitante con la parete fissa la camera di compressione. Il bordo (9A) del cappuccio in corrispondenza di tale foro (14) è elasticamente premuto a fare tenuta sulla estremità (13A) nelle condizioni di riposo del cappuccio (9). L'insieme della porzione del cappuccio in corrispondenza del suo foro e della adiacente porzione di estremità dell'appendice costituiscono sia un ugello di scarico (11) che un organo di chiusura (12) dell'ugello stesso.
Patent IT-1272602-B (IT)
Title: Trap for wash-basin drains formed by a box-type container and at least two inlet dip tubes
Inventor: LANFRANCHINI BENITO
IPC: A47K/
Filed: 1993-09-10
Granted: 1997-06-26
Abstract: Trap, especially for wash-basins, of the type consisting of a container with a drain opening at the top and at least one inlet opening, the latter extending inside the box in a dip tube which terminates in proximity to the bottom of the container itself. According to the invention, said container is created in the form of a flat box body with at least two openings side by side which extend in a similar number of vertical dip tubes located side by side. <IMAGE>
Patent IT-1271155-B (IT)
Title: Assembly of sections, used together for the production of frames, in particular for shutters or the like
Inventor: GIACOMELLI MARIO
IPC: E06B/
Filed: 1994-03-21
Granted: 1997-05-27
Abstract: The subject of the present invention is an assembly of sections used together for the production of frames, in particular for shutters or the like, that comprises upright sections and beam sections assembled together to produce the surrounding frame for a shutter or the like. The upright sections have, on the sides designed to face each other in the surrounding frame, longitudinal runners for guide sections having along their length housings for the ends of sections with bars that can be assembled to the guide sections before they are inserted into the longitudinal guide seats. <IMAGE>
Patent IT-1269796-B (IT)
Title: Processo per la preparazione di articoli formati antigraffio e antiabrasione,a base di polimeri acrilici
Inventor: RIGAMONTI MARCO
IPC: C08J7/046
Filed: 1994-05-19
Granted: 1997-04-15
Abstract: L'invenzione riguarda un processo per rendere antigraffio e antibrasione articoli formati a base di polimeri acrilici termoplastici consistente nel rivestire l'articolo con una composizione comprendente a) 40-90,5% in peso di almeno un monomero e/o oligomero (met) acrilico avente almeno due doppi legami polimerizzabili,b) 1-20% in peso di almeno un monomero e/o oligomero (met) acrilico contenente gruppi polari,c) 0,5-10% in peso di un fotoiniziatore UV,opzionalmente silice colloidale, stabilizzanti UV e tensionattivi non ionici, e nel polimerizzare e reticolare in sito detta composizione alla luce ultravioletta, a temperatura di 20-95°C.
Patent IT-1270204-B (IT)
Title: Winding unit for operating pack-type blinds, with means of positioning along the lines of gravitational force
Inventor: DI PAOLO ANTONIO
IPC: A47H/
Filed: 1994-06-09
Granted: 1997-04-29
Abstract: The subject of this invention is a winding unit for operating pack-type blinds, with means of positioning along the lines of gravitational force, characterised by the fact that it comprises a support bracket for each winder, associable with a fixed structure by means of oscillation around a first horizontal axis. Each winder is associated with the respective bracket by means of means of translation along a vertical plane. The operating bar of the winding reels of each winder is revolvable around a second horizontal axis, substantially perpendicular to the first axis. The operating bar control unit is also supported by one of the brackets, and can move in the same way as the winders. <IMAGE>
Patent IT-1272847-B (IT)
Title: Metallic radiator of plate type with water circulation
Inventor: DE LONGHI GIUSEPPE
IPC: F24D/
Filed: 1994-11-25
Granted: 1997-06-30
Abstract: The metallic radiator of plate type with water circulation comprises a body having on the inside at least one ventilator able to generate a flow of air for the forced heating of a room and being accommodated in a conduit for the passage of the air flow from at least one entry mouth to at least one exit mouth of the body. <IMAGE>
Patent IT-1254356-B (IT)
Title: Pellicola polarizzante contenente un colarante dicroico e procedimento per la sua preparazione.
IPC: G02B5/30
Filed: 1992-05-08
Granted: 1995-09-14
Abstract: Oggetto dell'invenzione è una pellicola polarizzante la quale è una pellicola di resina contenente da 0,001a 15 parti in peso di un colorante dicroico rappresentato dalla formula I: (FORMULA I) in cui Q rappresenta -N=N- oppure -CH=CH-, R1, R2 rappresentano gruppi alchilici a catena diritta o ramificata contenenti da 1 a 10 atomi di carbonio e R3 rappresenta idrogeno o gruppi metilici, basata su 100 parti in peso di una resina idrofuga, caratterizzata dal fatto che detto colorante dicroico è orientato nella resina idrofuga.
Patent IT-1251206-B (IT)
Title: Impianto elettrico di un autoveicolo, comprendente almeno un supercondensatore.
Inventor: PIZZI PIETRO
IPC: B60R16/03
Filed: 1991-09-18
Granted: 1995-05-04
Abstract: L'impianto comprende almeno un dispositivo utilizzatore elettrico ausiliario (L) per la cui attivazione è necessaria un'elevata potenza per un tempo breve,una batteria (1) ricaricabile,un generatore elettrico (2) atto a ricaricare la batteria (1), e almeno un supercondensatore (C), atto ad immagazzinare un'energia sufficiente per l'attivazione di tale dispositivo utilizzatore (L).L'accoppiamento del supercondensatore (C) al dispositivo utilizzatore (L) è controllato da un'unità elettronica (Q) in funzione dello stato di carica del supercondensatore e della temperatura del dispositivo utilizzatore (L).
Patent IT-1257543-B (IT)
Title: Sistema di demultiplazione ottica.
IPC: H04J14/08
Filed: 1992-05-26
Granted: 1996-01-30
Abstract: SISTEMA DI DEMULTIPLAZIONE OTTICA, IN CUI DA UNA PORTANTE OTTICA MODULATA MEDIANTE UN FLUSSO DATI TDM SI ESTRAE IL TRIBUTARIO VOLUTO SOTTO FORMA DI SEGNALE OTTICO. IL SISTEMA FA USO DI UN AMPLIFICATORE OTTICO A SEMICONDUTTORE, IL CUI GUADAGNO VIENE MODULATO PER EFFETTO DI SATURAZIONE. ALL'AMPLIFICATORE SONO INVIATE SIA LA PORTANTE OTTICA MODULATA, SIA UNA O PIU' PORTANTI OTTICHE DI CAMPIONAMENTO, CON LUNGHEZZA D'ONDA DIVERSA DA QUELLA DELLA PORTANTE MODULATA. UNO O PIU' FILTRI OTTICI FORNISCONO IN USCITA I TRIBUTARI ESTRAENDO ALL'USCITA DELL'AMPLIFICATORE LE PORTANTI DI CAMPIONAMENTO MODULATE DAL SEGNALE DATI.
Patent IT-1257089-B (IT)
Title: Apparecchiatura portatile di prova per verificare l'efficienza di una unita' elettronica di controllo di un sistema installato a bordo di unautoveicolo.
IPC: G01R31/00
Filed: 1992-09-04
Granted: 1996-01-05
Abstract: L'apparecchiatura consente di verificare l'efficienza di un'unità elettronica di controllo (ECU) di un sistema installato a bordo di un autoveicolo.L'apparecchiatura comprende un dispositivo simulatore di anomalie o guasti (S), interponibile tra detta unità di controllo (ECU) e dispostivi (D1, D2 ... Dn) del sistema. Tale dispositivo simulatore (S) include una pluralità di linee di collegamento (11, 12... 1n) atte a stabilire una continuità di collegamento fra detta unità di controllo (ECU) ed i dispositivi (D1, D2... Dn) del sistema, dispositivi commutatori (A, B, C) atti a simulare interruzioni o corto-circuiti su tali linee, un dispositivo di interrogazione/acquisizione (FT) collegabile alle uscite di diaqnosi (L'") di detta unità di controllo (ECU), e un terminale di controllo a microprocessore (T) utilizzabile da un operatore per proqrammare il tipo, il numero, la durata, la sequenza ed eventualmente la frequenza delle anomalie o guasti che si desiderano simulare, e le informazioni di diagnosi che si intendono acquisire attraverso il dispositivo di interrogazione/acquisizione (FT).(Figura 2)
Patent IT-1259276-B (IT)
Title: Device for automatically loading trolleys with superimposed movable shelves
Inventor: SOTTORIVA CLAUDIO
IPC: B65G/
Filed: 1992-05-08
Granted: 1996-03-11
Abstract: The invention relates to a device for the automatic loading of a trolley 2 with superimposed movable shelves 1 for use in the field of breadmaking in particular. In particular provision is made for the presence of a fixed structure 4 placed alongside trolley 2 on the side on which the shelves are inserted. A frame 5 which has pick-up, supporting and movement means 7, 8, 11 for individual shelves is capable of moving vertically on the said structure. The products which are placed on the shelves are in turn moved from a plane 12 which moves horizontally towards the shelf which has to be filled, which is located at a lower level than that of the aforesaid plane when it is being filled (fig. 1). <IMAGE>
Patent PT-103827-B (PT)
Title: Sistema e método para melhorar o rendimento de culturas agrícolas
Inventor: OLIVEIRA JOSE ARTUR MOTA VAREL
IPC: A01C23/02
Filed: 2007-09-20
Abstract: ESTA INVENÇÃO REFERE-SE A UM SISTEMA E MÉTODO PARA MELHORAR O RENDIMENTO DE CULTURAS AGRÍCOLAS, EM PARTICULAR DE CULTURAS HORTÍCOLAS. O SISTEMA COMPREENDE OS SEGUINTES COMPONENTES: PELO MENOS UM RECIPIENTE (2A, 2D) DE ARMAZENAMENTO DE FLUIDOS, PELO MENOS UM DISPOSITIVO (3) DE COMPRESSÃO, UM EQUIPAMENTO DE REGULAÇÃO DOS REFERIDOS FLUIDOS COMPREENDENDO VÁLVULAS (4), PELO MENOS UM EQUIPAMENTO (5, 6, 7, 7¿) DE DISTRIBUIÇÃO DOS REFERIDOS FLUIDOS, PELO MENOS UM DISPOSITIVO DE TRATAMENTO DE FLUIDOS E UM SISTEMA DE CONTROLO COMPREENDENDO SENSORES, SENDO O SISTEMA CARACTERIZADO POR OS REFERIDOS FLUIDOS SEREM SELECCIONADOS DO GRUPO COMPREENDENDO AR QUENTE, AR FRIO, ANIDRIDO CARBÓNICO E VAPOR DE ÁGUA, E SE COLOCAR, OPCIONALMENTE, UMA COBERTURA (8) SOBRE A CULTURA. O MÉTODO COMPREENDE: A REGULAÇÃO DA ENTRADA DOS REFERIDOS FLUIDOS NUM EQUIPAMENTO (5, 6, 7, 7¿) DE DISTRIBUIÇÃO DOS REFERIDOS FLUIDOS, A INJECÇÃO DOS REFERIDOS FLUIDOS DIRECTAMENTE NAS REFERIDAS MANGAS (6), TUBOS OU FITAS (7, 7¿), ATRAVÉS DA UTILIZAÇÃO DE UM DISPOSITIVO (3) DE COMPRESSÃO QUE INJECTA OS REFERIDOS FLUIDOS COM A PRESSÃO ADEQUADA; SENDO O MÉTODO CARACTERIZADO POR, OPCIONALMENTE, A RETENÇÃO DOS REFERIDOS FLUIDOS NA VIZINHANÇA DAS CULTURAS SER EFECTUADA PELA COBERTURA EXISTENTE. O MÉTODO COMPREENDE AINDA, OPCIONALMENTE, O TRATAMENTO DE FLUIDOS ATRAVÉS DE, PELO MENOS, UM DISPOSITIVO DE TRATAMENTO DE FLUIDOS E A INTRODUÇÃO DOS REFERIDOS FLUIDOS NUM RECIPIENTE (2A, 2D) PARA AÍ SEREM ARMAZENADOS.
Patent PT-115235-B (PT)
Title: Dispositivo para aparelhos eletrodomésticos.
Inventor: DANIEL COVITA
IPC: G01K7/00
Filed: 2018-12-28
Abstract: A INVENÇÃO BASEIA-SE NUM DISPOSITIVO PARA APARELHOS LETRODOMÉSTICOS (10) COM, PELO MENOS, UM TUBO DE FLUIDO (12) PARA A PASSAGEM DE UM FLUIDO, COM PELO MENOS UMA UNIDADE DE SENSOR (14) PARA O APURAMENTO DE UM PARÂMETRO DO FLUIDO, SOBRETUDO A TAXA DE VAZAMENTO PELO TUBO DE FLUIDO, E COM PELO MENOS OUTRA UNIDADE DE SENSOR (16) PARA O APURAMENTO DE OUTRO PARÂMETRO DO FLUIDO FORMADO DIFERENTEMENTE DO PARÂMETRO DE FLUIDO, SOBRETUDO A TEMPERATURA. PROPÕE-SE QUE O DISPOSITIVO PARA APARELHOS ELETRODOMÉSTICOS (10) APRESENTE, PELO MENOS, UM ELEMENTO DE SENSOR (18) COMUM À UNIDADE DE SENSOR (14) E À OUTRA UNIDADE DE SENSOR (16) PARA QUE HAJA A DETEÇÃO EM COMUM DO PARÂMETRO DE FLUIDO E DO OUTRO PARÂMETRO DE FLUIDO.
Patent TW-211557-B (TW)
Title: Method of preparing ?hydroxyisobutylamide
Inventor: KARAZAWA MINAUTO
IPC: B01J23/34
Filed: 1992-12-15
Granted: 1993-08-21
Abstract: Method of preparing `-hydroxyisobutylamide in liquid phase, containing the hydration of acetone cyanohydrin catalyzed by manganese dioxide to produce `-hydroxyisobutylamide in a continuous process, and an oxide selected from (1) to (4) in the reaction solution as its characteristic: (1) the formula as follows: M1sOt*aH2O (1) in which M1 represents an element with valence m, a is a positive number, integer s and t satisfied m*s=2*t, and M1 is selected from aluminum, silicon, germanium, antimony and niobium; (2) the formula as follows: HxM1yOz (2) in which M1 represents an element with valence m, integer x, y and z satisfied 2*z=m*y+x, and M1 is selected from boron, aluminum, silicon, germanium, tin, lead, arsenic, antimony, vanadium, niobium, molybdenum, and tungsten; (3) the formula as follows: HxM1sM2tOy (3) in which M1 represents an element with valence m, M2 represents an element with valence n, integer s, t, x and y satisfied 2*y=m*s+n*t+x, M1 is selected from silicon, germanium, phosphorus and arsenic, and M2 is selected from vanadium, molybdenum and tungsten; and (4) the salt selected from the alkali metal salt and alkali earth acid.