baber/WOPTO huggingface dataset:
Patent NL-8301073-A (NL)
IPC: H03F3/60
Filed: 1983-03-28
Abstract: A high-frequency circuit (11) having at least a semiconductor circuit element (12) which is arranged on a first surface (13) of an insulating substrate (14). At least one (19a, 19b) of the output terminals (17, 18a, 18b, 19a, 19b) of the semiconductor circuit element (12) is electrically coupled to a ground plane (16) through a capacitive element (20) and metallized holes (21, 22). According to the invention, the circuit element (12) is secured a plate (24) of a dielectric material provided with conductive elements (27, 28a, 28b, 29a, 29b) to which the output terminals are soldered. The conductive elements to which the terminals (19a, 19b) are secured are conductively connected to a metallic layer (30a, 30b) constituting a first plate of the capacitive element (20). A conductive layer (31) formed between the plate (24) and the substrate (14) constitutes a second plate of the capacitive element.
Patent NL-8304012-A (NL)
Title: Defect detector for underwater concrete structures - processes acoustic microscope output to produce video images of surface, showing cracks, pits, etc.
IPC: G01N29/04
Filed: 1983-11-22
Abstract: The acoustic microphone consists of a round transducer assembly (14) mounted on a carriage which is drawn across the surface under test (18). The assembly consists of a number of identical transmitting and receiving transducers mounted at such angles that the broad-band pulsed ultrasonic signals are reflected from the surface, received and processed to form an image on a VDU (15). Any pits or cracks in the surface cause a proportion of the longitudinal waves to travel along the surface as Rayleigh waves, following the profiles of the cracks. The angle between the transmitted wave and the surface is proportional to the ratio between the two wave propagation speeds.
Patent NL-9002254-A (NL)
Title: Polymer blend and articles formed therefrom
IPC: C08L69/00
Filed: 1990-10-17
Abstract: The invention relates to polymer blends which contain an aromatic polycarbonate, a graft copolymer, a polymer derived from methyl methacrylate units. By using a graft copolymer with a rubber-type graft base having a mean particle size of 0.05-0.1 micrometer and containing further units in addition to units derived from butadiene, a polymer blend is obtained having an improved combination of characteristics, in particular good impact strength at room temperature and at low temperatures, and a reduced tendency to whitening in the event of stresses and wrinkling or creasing.
Patent NL-9100715-A (NL)
Title: Algae-growing reactor - comprises porous component contg. heater and enclosed in inclined translucent tube
IPC: C12N1/12
Filed: 1991-04-25
Abstract: Algae are grown in a reactor on a substratum with liq. feeding base. The reactor comprises an inclined translucent tube contg. a porous component. Over roughly 240 deg. the latter leaves a gap of 3 to 12mm between itself and the tube wall, and it contains a central passage accommodating a tubular heat-transmitting component. Near the reactor ends the passage is connected to the space between the tube wall and the porous component. The reactor can be mounted parallel to the earth's axis, with the free space between tube and porous component toward the south. The porous component can be of expanded polystyrene foam with a specific gravity between 15 and 40 kg per cm.metre. Alternatively ceramic can be used.
Patent NL-9201466-A (NL)
Title: Binding machine
IPC: B65B27/10
Filed: 1992-08-17
Abstract: Binding machine for arranging a ribbon-like (tape-like, belt-like) binding strip 6 around objects A which are to be wrapped. The binding strip 6 is unwound from a reel 5 with the aid of a binding arm 3. The binding machine is equipped with means 9 for pulling the binding strip 6 taut in the ribbon rewinding direction when the binding arm 3 moves downwards, the rewound ribbon strip section being wound onto the reel 5 in order to avoid the formation of loops which, especially where adhesive tape is used, may lead to the adhesive tape becoming jammed in the guide means 7. <IMAGE>
Patent NL-9202260-A (NL)
Title: Arrangement for keeping a substrate in place electrostatically
IPC: B23Q3/15
Filed: 1992-12-24
Abstract: The present invention relates to an arrangement for keeping a conducting or semiconducting substrate or element in place electrostatically, the arrangement comprising: - one or more layers of insulating material; and - one or more strips or electrodes of conducting or semiconducting material which are embedded in the insulating material.
Patent NL-9300056-A (NL)
IPC: F16B2/24
Filed: 1993-01-12
Abstract: Clip for holding together sheets of paper or other materials, or for placing on other articles of different kinds, comprising two clampingp legs (1, 2) made of sheet material which are movable resiliently relative to each other, and the two end edges (12, 13) of which cross each other at an angle and when in use form push-on edges with at least a part of their length, which edges define a substantially inverted V-shaped push-on space in accordance with an earlier patent application. At the position (14) where the two push-on edges (12, 13) cross each other, a space (15) is created between the legs (1, 2) as a result of the fact that at least one of the clip legs is provided with a non-angular depression (19). <IMAGE>
Patent NL-9400529-A (NL)
Title: Parking/traffic bollards provided with a flexible connecting piece and optionally fitted with an electric circuit for damage prevention/maintenance
Inventor: STAM JOHANNES-ANTONIUS
IPC: E01F9/627
Filed: 1994-04-05
Abstract: The invention relates to a parking/traffic bollard which at its bottom is provided with a flexible connecting piece (connector), for example with a steel spring, but optionally constructed using other flexible materials, e.g. a rubber or type of plastic, depending on the applicable conditions. If required, in particular, the hollow interior of this bollard could be used, in the event of a collision, to fit a circuit, in conjunction with a signal which is activated when the bollard is touched and moves back and forth by means of the flexible connecting piece.
Patent NL-9401693-A (NL)
Title: Method for washing surfaces, in particular the outside of a car body, and car wash
Inventor: EST NELIS VAN DER
IPC: B60S3/04
Filed: 1994-10-13
Abstract: The invention provides a brushless washing installation, in particular for washing cars. It is proposed for the electric or electrostatic charge of the cleaning water or the cleaning liquid to be adapted to the electric or electrostatic charge of the surface which is to be cleaned. In particular, the cleaning liquid is treated in such a manner that it acquires a positive electrostatic charge. This liquid is applied to the surface at elevated pressure, of approximately 80 bar. Reliable cleaning without the risk of damage to the surface is now possible.
Patent PT-72815-A (PT)
Inventor: BIGG DENNIS
IPC: C07D513/04
Filed: 1981-04-07
Abstract: Thiazole derivatives of the general formula:   <IMAGE>   wherein n represents 1 or 2 and each of X and Y independently of one another represents one or more substituents selected from hydrogen and halogen atoms, the trifluoromethyl radical and straight- or branched-chain alkyl and alkoxy radicals of 1 to 4 carbon atoms, are new therapeutically useful compounds, especially of interest in the treatment of depression.
Patent PT-74171-A (PT)
IPC: B06B1/06
Filed: 1981-12-21
Abstract: A circuit arrangement for a piezoelectric positioning element is formed of a series connection of a capacitive element, an inductance, and first switch to be controlled, said series circuit being connected across at least one piezoelectric body of the positioning element. The capacitive element, which may be another piezoelectric body of the same positioning element but which is operated in reverse phase, has at least approximately the same capacitance value as a capacitance of the first piezo-electrical body. The inductance is dimensioned sufficiently large in order to magnetically intermediately store substantially an entire energy increment to be transferred between the positioning element and the capacitive element. The first switch is connected to permit termination of a charge transfer. A series circuit is formed of an electrical energy source for charging and recharging and a second switch, said series circuit being connected parallel to the positioning element or the capacitive element. A controllable short-circuit switch is connected parallel to the capacitive element or parallel to the positioning element. In this way, the activation energy of the piezoelectric body is recovered on de-activation, for re-use on the next cycle.
Patent PT-75449-A (PT)
Title: Improved effluent treatment process
IPC: C02F/
Filed: 1982-08-20
Abstract: Proteinaceous waste H2O contg. solid impurities is clarified by feeding the H2O through a treatment zone where the following steps are effected: (a) solid impurities are coagulated in the zone; (b) a portion of the clarified prod. (20-50% by wt. of feed) is recirculated through the zone; (c) the recirculated clarified prod. is aerated to afford a continuous foam (contg. less than 10% by vol. of liq.) which is mixed with the waste H2O feed in or upstream of the treatment zone; (d) the foam is allowed to rise to, and float on, the surface of the H2O in the zone; and (e) the foam contg. entrapped coagulated solids is removed from the H2O surface in the treatment zone. Simple, effective method is suitable for the treatment of tannery waste H2O, and effluents from numicipal sludges and pig slurries, etc. In addn., the process is suitable for a wide variety of waters contg. solids with a range of particle sizes.
Patent PT-89733-A (PT)
Inventor: HO LOAN A
IPC: C08G59/68
Filed: 1989-02-16
Abstract: Advanced epoxy resins are prepared from glycidyl ethers of bisphenols or biphenols in the presence of cycloalkyl triphenyl phosphonium catalysts.
Patent PT-93016-A (PT)
IPC: B60R25/02
Filed: 1990-01-30
Abstract: A motor vehicle security system prevents unauthorized removal of a foot pedal-steering wheel lock by means of structural reinforcement of the steering wheel to prevent destructive severing of the wheel rim which would enable removal of the lock. A cut-resistant steel cable is embedded in the steering wheel rim to enhance the resistance of the wheel to severing.
Patent PT-95598-A (PT)
Inventor: JOHNSTON ROBERT WILLIAM
IPC: A23L27/60
Filed: 1990-10-15
Abstract: This invention relates top polyol fatty acid polyester compositions having improved physiological properties, organoleptic properties (i.e. mouth feel), liquid/solid stability and chemical stability. These polyol fatty acid polyesters are characterized in that (a) not more than about 0.6% of the fatty acid groups contain three or more double bond, not more than about 20% of the fatty acid groups contain two or more double bonds, and not more than about 35% of the fatty acid double bonds are trans double bonds; (b) the polyesters have an iodine value between about 15 and about 60; and (c) the solid fat content/liquid solid stability ratio is not greater than 0.25. This invention also relates to a process for preparing these improved polyol polyester compositions.
Patent PT-96902-A (PT)
Inventor: LEONE LUPARINI
IPC: E04D3/36
Filed: 1991-02-27
Abstract: A supporting and load-distributing element (3) is disposed between a roof decking (under-roofing) (2) made from corrugated panels and roofing battens (5,9) which are perpendicular to it and which are capable of permitting the fastening of flat tiles. This element (3) consists of a tubular spacer disposed in a concave corrugation (2a) of the roof decking (under-roofing) (2), in contact on the one hand with a roofing batten (5,9) and on the other hand with the bottom of the said concave corrugation (2a). In addition, one end (3a) of the said spacer (3) comprises a retention lug (12) extending radially in order to butt up against a roofing batten (5,9) in an introduction direction (F) directed downwards from the slope of the roof. Application to the production of roofs made from flat tiles. <IMAGE>
Patent PT-98694-A (PT)
Inventor: KOVESDI IMRE
IPC: C07K14/00
Filed: 1991-08-16
Abstract: The invention relates to novel DNA and amino sequences for a human MK protein. Also described are expression vectors and host cells useful in a method for production of the MK protein.
Patent PT-99004-A (PT)
Inventor: NEUMILLER PHILLIP J
IPC: A61K47/06
Filed: 1991-09-19
Abstract: This invention relates to the field of aqueous emulsion systems and the use of such systems for dispensing aerosols from pressurized containers and more particularly to an improved emulsion system which contains vesicle structures that can be used to provide a reservoiring effect for the propellant component of an aerosol delivery system.
Patent PT-99114-A (PT)
Title: Process for the preparation of monoclonal antibodies directed against complexes formed by thrombin and thrombin inhibitors
Inventor: SCHLAEPPI JEAN-MARC
IPC: C12N5/00
Filed: 1991-09-30
Abstract: The present invention relates to a process for the preparation of monoclonal antibodies which are directed against the thrombin/hirudin complex and derivatives thereof and of cell lines of hybridomas which secrete said monoclonal antibodies.  The invention is also related to the use of monoclonal antibodies and/or derivatives thereof for the determination of the thrombin/hirudin complexes as well as test kits containing said monoclonal antibodies and/or derivatives thereof. More concretely, the present invention essentially relates to a process for the preparation of a monoclonal antibody which is directed against the thrombin/hirudin complex, and of a derivative thereof which maintains the specificity of the antibodies from which they are derived, which consists in the cells of a hybridoma cell line which secretes said antibody being propagated in vitro or in vivo and, when necessary, the monoclonal antibody obtained being isolated and/or converted into a derivative thereof.
Patent PT-99118-A (PT)
Inventor: BLACK ROY A
IPC: C07K5/065
Filed: 1991-09-30
Abstract: There is disclosed an isolated polypeptide and derivatives thereof having protease biological activity for human precursor IL-1 beta  and for a substrate comprising : R1-Asp-R2-R3 wherein R1 and R3 are independently any D or L isomer amino acid, R2 is Ala or Gly, and wherein the specific protease cleavage site is between Asp and R2. Inhibitor compounds, compositions and methods for inhibiting Interleukin 1 beta  protease activity are also disclosed. The inhibitor compounds comprise an amino acid sequence of from 1 to about 5 amino acids having an N-terminal blocking group and a C-terminal Asp residue connected to an electronegative leaving group, wherein the amino acid sequence corresponds to the sequence Ala-Tyr-Val-His-Asp.
Patent SI-9100016-A (SI)
Title: Segmentic tube type low-voltage current conductors
IPC: F21V21/00
Filed: 1991-12-19
Abstract: The supply rail is in the form of a moulded body (4) of insulating material of profiled section (13,14) elastic enough for tubes of conducting material (15) to be inserted and returned. Other features on the body are in the form of projecting lugs (11) with elements (17,18) that securely latch conducting rails (2,3) against the body. The outer surface of the rails have facets against which take-off contacts are located. Pins engage the internal tubes. ADVANTAGE - Provides flexibility in lighting supply.
Patent SI-9400156-A (SI)
Title: Device for coupling conveyance
Inventor: SWITZENY KURZ
IPC: F16G11/00
Filed: 1994-03-30
Abstract: Device for clamping a ropeway vehicle, e.g. a cab or a chair, to the conveying cable or traction cable (5) of a ropeway system, consisting of a clamping element (1) which is provided with running rollers (13) and bears a rigidly attached first clamping jaw (15) and a second clamping jaw (25) which can be pivoted with respect to the first clamping jaw (15), the second clamping jaw (25) being located at one end of a two-armed clamping lever (23) at whose other end a control element, in particular a control roller (2), which interacts with control rails, is provided, and the clamping lever (23) being pivotable with respect to the clamping element (1) counter to the effect of at least one torsion spring (3), as a result of which the second clamping jaw (25) moves in the open position. A toggle lever joint (21, 22) is provided here between the clamping lever (23) and the torsion spring (3). <IMAGE>
Patent UA-19097-A (UA)
Title: D-1-phenyl-2 methylaminopropanol-1-5,6,7-trioxyflavon-7-0-BETA-D-glukuronidate having antioxidative and vasodilating activity
Filed: 1991-06-17
Abstract: The invention relates to novel chemical compound. D-1-phenyl-2 methylaminopropanol-1-5,6,7-trioxyflavon-7-0---D-glukuronidate of the formula having antioxidative and vasodilating activity.
Patent BG-101040-A (BG)
Title: Benzopyrans and their use as therapeutic agents
Inventor: CHAN WAI N
IPC: A61K31/00
Filed: 1996-12-10
Abstract: The invention relates to certain cis and trans benzopyrans having substituted benzamides at position C-4 and to their use in treating and/or preventing certain CNS disorders.
Patent BG-101204-A (BG)
Title: Method and device for the filtration, degassing and dehydration of, and removal of ageing products from petroleum oils
Inventor: RANTISN MIKNAILO
IPC: C10G33/04
Filed: 1997-02-06
Abstract: The invention pertains to the separation of differentsubstances, more specifically, to a method and device for thefiltration, degassing and dehydration of, and removal of ageingproducts from insulation and other petroleum oils. The technicalresult is a high level of efficiency when the aforementionedphases produced by the processing of the oil or mixture of oilsare passed once through the active component, and the possibilityof regenerating the used adsorbents in the process of operatingthe equipment, while simplifying the design and reducingdimensions and energy consumption. The device (1) for filtration,degassing and dehydration and for the removal of ageing productscomprises at least one reservoir (2) in which are arrangedcylindrical partitions (3, 4) filled with adsorbent (5) andsecured in the reservoir (2) by fastening elements (6). Thepartitions (3, 4) form channels for the passage of the oilundergoing processing. The reservoir (2) is provided with an inletaperture (7) and an outlet aperture (8) both of which are fittedwith mechanical filters (9, 10). An electric drive (12) is mountedon the base (11) of the device (1) and connected to a deliverypump (13). Also mounted on the base is a unit (14) for protectingand starting the electrical drive (12). The circulating pipes (15)link the separate parts of the device (1) as well as link theindividual devices (1) which make up the oil processing units toone another and to the consumer reservoirs containing the oil tobe processed.17 claims, 10 figures
Patent BG-106922-A (BG)
Title: Heterocyclic amide derivatives
Inventor: BROWN MATTHEW F
IPC: C07D215/54
Filed: 2002-07-15
Abstract: A compound of formula or the pharmaceutically acceptable salt thereof, wherein R1, R2, R3 and R4 have the meaning given in the description, useful to treat inflammation and other immune disorders. 36 claims
Patent BG-110589-A (BG)
Title: Device for dry grinding of surfaces
Inventor: RENDOV IVAN
IPC: B24B23/06
Filed: 2010-01-27
Abstract: The device can be applied for dry processing by means of grinding of gypsum and/or lime based plasters and putties in the construction and repair works and in the polishing of wooden surfaces and paints of any type. It allows dust free grinding because the dust forming during the dry grinding is sucked by the vacuum created by a machine (vacuum cleaner) and passes through the openings of the silicon sand paper of network type and the dust-permeable mat (4). When the dust enters the two openings (3) of the main plane (1), it enters the tubular handle (2) which operates as a dust duct at its outlet, after which the dust is directed through the flexible duct (7) directly into the dust collecting bag of the machine (vacuum cleaner).
Patent BG-110920-A (BG)
Title: A method and a device for treating metallurgy and floatation waste and lean non-ferrous metal ores
Inventor: PANAYOTOVA MARINELA
IPC: C25C1/00
Filed: 2011-04-28
Abstract: The method and the device provide effective concentration of precious components in a smaller volume leading to lower costs in successive processing. The includes simultaneous leaching by proper chemicals and electrochemical treatment by direct current. In accordance with the invention fine particles of metallurgy and flotation waste and lean non-ferrous ores are mixed with solutions of chemicals in the ratio of solids to leaching chemical in the range of 1:0,5 û 1:5, the resulting mixture is homogenized and is treated electrochemically by direct current through 2 to 5 pairs of electrodes anode-cathode situated in the solution at current density in the range of 0,2-30 mA/cm and voltage 0,2-0,4 V/cm and duration of the process 8 to 240 h. After that the enriched material situated in thecathode and/or anode area is separated and processed by well known methods. The device comprises a rectangular section container (1) wherein 2 to 5 pairs of electrodes anode (5) and cathode (4) are situated and fixed at the upper end to a horizontal shaft (6). Inter electrode distance between the electrodes is possible to control by this shaft. There are outlets with movable lids (T) at the bottom of container (1) to take out the enriched material from the anode and cathode area.
Patent CN-1348982-A (CN)
Title: 不锈钢叶片无余量精锻工艺用玻璃防护润滑剂
Inventor: DUAN SUJIE
IPC: C10M113/14
Filed: 2000-10-16
Abstract: 本发明提供了一种不锈钢叶片无余量精锻工艺用玻璃防护润滑剂,由10.7－14.7(重量)%的玻璃A,9－13(重量)%的玻璃B,和10.7－14.7(重量)%的玻璃C,8.2－28.2(重量)%的耐热型水溶性纤维素,26.4－46.4(重量)%的水,2.5－6.5(重量)%的Cr 2 O 3 和2.5－6.5(重量)%的黏土组成。
Patent CN-1378133-A (CN)
Title: 显示资料转换装置
Inventor: ZHANG JIANLI
IPC: G06F3/14
Filed: 2001-04-04
Abstract: 本发明是提供一种显示资料转换装置。这种显示资料转换装置能将适用于一小型显示装置,如个人数字助理的显示器上,较低解析度的显示资料转换成具有较高解析度的显示资料,而将其显示于如投影机、液晶显示器等等的显示装置。
Patent CN-1388834-A (CN)
Title: 冷加工性能和高频淬硬性能出色的高碳钢管及其制造方法
Inventor: TAKAAKI TOYOOKA
IPC: C22C38/00
Filed: 2001-06-14
Abstract: 本发明提供一种冷加工性能和高频淬硬性能出色的高碳钢管及其制造方法。具体的方法包括:对含有0.3%－0.8%的C、2%以下的Si和3%以下的Mn的原材料钢管进行加热,接着在(Ac 1 转变点－50℃)－Ac 1 转变点的温区内对原材料钢管进行累积缩径率为30%以上的减径轧制。由此获得渗碳体小于1.0微米的组织并改善了冷加工性能和高频淬硬性能。
Patent CN-1374661-A (CN)
Title: 用于标记存储设备内容的装置和方法
Inventor: TAWSE C P
IPC: G06F12/06
Filed: 2002-03-07
Abstract: 一个用于记录、寻址和读取数据的电可寻址设备,包括一个具有多个数据存储介质层的存储器阵列单元,每一层被安置在一个基底上;和与存储介质的至少一层有关以提供一个显示指示预选信息的电标记设备。该电子标记设备包括至少一个显示层,所述显示层可以部分可视地替换以提供所述显示。该显示层还包括多个多态信息存储单元,每一个表示至少一个数据位的值,其中每一个信息存储单元视觉外表根据信息存储单元的状态而变化。本发明还提供一个用于标记一个用于记录、寻址和读取数据的电可寻址设备的内容的方法。该方法包括选择数据电保存在最外层上以提供指示诸如存储器阵列模块中所保存数据特性的预选信息的显示。
Patent CN-1446878-A (CN)
Title: 双杂环取代的俘精酸酐类光致变色化合物及其合成方法和用途
Inventor: FAN MEIGONG
IPC: C09K9/02
Filed: 2002-03-26
Abstract: 本发明属于光致变色和光信息存储以及光信号转换材料技术领域，特别涉及双杂环取代的俘精酸酐类光致变色化合物及其合成方法和用途。将取代的杂环酮与丁二酸二乙酯混合，然后加入到含有叔丁醇钾的叔丁醇溶液中，酸化反应液，所得半酯在浓硫酸为催化剂下，在乙醇溶液中回流，得到中间体单杂环取代的丁二酸二乙酯；将中间体与等摩尔取代的杂环酮混合于甲苯溶液中，在氮气保护下，混合液加入到氢化钠的无水甲苯悬浮液中，加入无水乙醇引发反应，析出的半酯用乙酸乙酯萃取，抽滤，干燥，所得二酸溶解在四氢呋喃中，然后加入二环己基碳二酰亚胺，分离，重结晶，最终得到双杂环取代的俘精酸酐类光致变色化合物；用于可擦写和三维光信息存储等。
Patent CN-1420663-A (CN)
Title: 用于在网络上传送数据的方法和装置
Inventor: ENGOUGH KING KUCK
IPC: H04L29/08
Filed: 2002-09-16
Abstract: 在网络上从一源节点向一请求的客户机传送一文件的方法，包括：在中间节点接收对该文件的请求；从该中间节点向该客户机提供该文件的时间不敏感部分；以及从该源节点向该客户机提供该文件的时间敏感部分。
Patent CN-1499324-A (CN)
Inventor: XU DE
IPC: G01C22/00
Filed: 2002-11-06
Abstract: 一种机器人位置和姿态的推算定位方法及装置，在驱动轮侧加装测量轮，在机器人的每个轮子的各个自由度安装里程计。测量距离的里程计采用相对码盘，测量角度的里程计采用绝对码盘。通过不同的里程计信息的组合，获得多组转弯半径和转向角，再通过信息融合技术得到运动轨迹的转弯半径和转向角，然后利用基于轨迹的运动学新模型获得机器人的位置和方向。基于轨迹的运动学模型是一组位置和姿态的递推公式，它只用到当前的转弯半径、转向角、上一次采样时刻的位置和姿态。与传统的利用两个轮子的里程信息的推算定位法相比，本发明不仅提高了定位精度，提高了抗干扰能力，而且可用于不平整地面，并适合于在线实时定位。
Patent CN-1424328-A (CN)
Title: 溶液稳定的低直链淀粉木薯淀粉及其用途
Inventor: JEFFCOLT R
IPC: C08B31/12
Filed: 2002-11-20
Abstract: 本发明涉及一种低直链淀粉木薯淀粉。这种淀粉具有优异的溶液稳定性，包括冷冻－融化稳定性，并且链长分布与常规木薯淀粉的类似。该淀粉，在化学改性或者没有化学改性下，可用于各种食品、药品和工业领域。