f

Method for copy protection

A method for copy protection in which an audiovisual or audio data is divided into a plurality of portions. The plurality of portions is at least partly scrambled and prepared so as to be stored on a record carrier in the scrambled order. This is done so that a physical position on the record carrier, e.g., a sector of the record carrier, where a respective portions of the divided data is stored depends on the scrambled order.




f

Optical information recording and reproducing method and device

Disclosed is an optical information recording and reproducing device capable of recording an interference fringe pattern as a hologram in an optical information recording medium, the interference fringe pattern being formed by a signal beam superimposed with signal information and a reference beam, and also capable of reproducing the signal information from the optical information recording medium, the device having a light source unit to emit light, a light splitting unit to split the light into the reference beam and the signal beam, a spatial light modulation unit to superimpose the signal information on the signal light, and a light detection unit to detect an image reproduced by the reference beam, wherein information about defects on the spatial light modulation unit is recorded in the optical information recording medium.




f

System, portable electronic device, and method for peer-to-peer communication of media

A wireless media player and a related system and methodology are disclosed. One aspect of the wireless media player system pertains to a virtual connector system, apparatus, and method for the automatic establishment of wireless connectivity with other electronic devices. In one embodiment, the media player device employs the use of integrated Radio Frequency Identification (RFID) technology to exchange communication settings, media capability, and other parameters with an external device that also has integrated RFID technology. The automatic exchange of settings and other information via a proximity-based RFID data exchange allows a media player to quickly establish a secure communication link with another device via a commonly supported wireless protocol such as Ultra Wideband (UWB) or Bluetooth. Another aspect of the media player system pertains to a method of using the captured media capability of the connecting device to customize certain menu options and software parameters in the media player.




f

Applying digital frequency offset to timing loop

A system for providing an accumulated phase to an interpolator of a read channel, the interpolator configured to provide a digital clock signal. A frequency accumulator is configured to generate a frequency offset based on a difference between the digital clock signal and a desired clock signal. A zero phase start module is configured to, during a zero phase start, output an incremental phase jump. A phase accumulator is configured to generate the accumulated phase based on the difference between the digital clock signal and the desired clock signal, and, during the zero phase start, the incremental phase jump output by the zero phase start module, or the frequency offset generated by the frequency accumulator or a predetermined frequency offset.




f

Multilayer optical recording medium, drive device, reproducing and recording apparatus, and inspection method for multilayer optical recording medium

According to one embodiment, a multilayer optical recording medium including a substrate, a guide layer group that is provided on the substrate and has guide layers in which positional information in a radial direction is recorded, and a recording layer group that is provided on the substrate and has recording layers in which information can be recorded. In the recording layer group, positional information of the recording layers associated with the positional information recorded in the guide layers and control information of the optical device where reflected light volumes of the laser beams on the guide layers and the recording layers become maximum at the positions in the radial direction are recorded at the positions in the radial direction of the recording layers.




f

Low friction linear tracking tone arm

This invention is provides a means of playing LP records with minimal distortion. Low distortion is achieved by eliminating tracking error normally associated with pickup cartridges mounted to pivoting tone arms. This invention discloses a tone arm that constrains the motion of the stylus to straight radial path, mimicking the cutting path of the record lathe, supported on parallel rails by free rolling spherical bearings. Unlike many previous linear tracking tone arms, this invention does not rely on air pressure or servo motor mechanisms. The use of free rolling bearings or axles between parallel tracks fashioned from rails, rods or tubes, eliminates all sources of lateral friction other than pure static and rolling friction of the balls on the rails, rods or tubes. In the preferred embodiment, the fixed rods or tubes are driven synchronously, thereby eliminating static friction of the supporting rolling balls. Friction is further reduced using magnetic or buoyant support of the tone arm to reduce bearing load to that amount minimally sufficient to maintain full contact between the rolling balls and the upper and lower rods.




f

Optical disc with pre-recorded and recordable regions and method of forming the disc

An optical disc having a region with pre-recorded data and a recordable region, a method of fabricating the disc, a stamper for forming a disc master, and a recording device for use with the disc are disclosed. Data recorded in the recordable region may be used for activation of the disc, providing unique identification or enhancing program content on the disc.




f

Apparatus and method for compensating for pixel distortion in reproduction of hologram data

An apparatus for compensating for pixel distortion while reproducing hologram data includes an extraction unit, a determination and calculation unit, a table, and a compensation unit. The extraction unit extracts a reproduced data image from a reproduced image frame including the reproduced data image and borders. The determination and calculation unit determines position values of edges of the extracted reproduced data image, and calculates average magnification error values of pixels within line data from position values of start and end point pixels thereof, which are based on the determined position values of the edges. The table stores misalignment compensation values for the pixels within the line data, wherein the misalignment compensation values correspond to predetermined references for average magnification error values. The compensation unit compensates for pixel positions in the extracted reproduced data image using the misalignment compensation values that correspond to the calculated average magnification error values.




f

Self-controlled laser pulsing for thermally assisted recording

A method of storing data includes providing a write signal for a write head of a hard disk drive, generating a transition pulse signal derived from the write signal using a transition pulse generator, and generating a logic signal to drive a thermal source associated with the write head of the hard disk drive. The logic signal includes the logical summation of a cyclical base pulse signal and the transition pulse signal.




f

Data storage device adjusting laser input power to compensate for temperature variations

A data storage device is disclosed comprising a head actuated over a disk, wherein the head comprises a laser configured to heat the disk while writing data to the disk. A temperature is measured, and a first input power is generated based on a first function of the measured temperature, wherein the first function compensates for a temperature dependent output power of the laser. A second input power is generated based on a second function of the measured temperature, wherein the second function compensates for a temperature dependent coercivity of the disk. The first input power is combined with the second input power to generate a write power applied to the laser while writing data to the disk.




f

Plasmon generator having flare shaped section

The present invention relates to a plasmon generator, in which a surface plasmon is excited by application of light. The plasmon generator extends along one direction. The plasmon generator includes a first end surface that is positioned on one end in the one direction and at which near-field light is generated along with the excitation of the plasmon; and a second cross section that is substantially parallel to the first end surface and is away from the first end surface. The first end surface has a polygonal shape that does not have a substantially acute inner angle. The second cross section has an upper part that has a shape substantially the same as or similar to that of the first end surface and a flare shaped lower part that is connected to the upper part and has a width that increases as it is far from the upper part.




f

Thermally conductive features for a heat-assisted magnetic recording head

In a heat-assisted magnetic recording hard disk drive, one or more thermally conductive features are incorporated to assist with dissipation of heat from a laser module that comprises a laser and a submount. The submount may be coupled to the slider with solder covering a wider adhesive area for enhanced conduction of heat away from the laser module and to the slider, one or both of the submount and the laser may include a surface coating that increases the thermal radiation of the corresponding component, and/or one or both of the submount and the laser may include fins configured to transfer heat from the corresponding component. Further, a HAMR HGA may be configured such that the submount is coupled directly to the suspension flexure using a thermally conductive material, for conduction of heat away from the laser module and to the flexure.




f

Optical information recording device and method

In an optical information recording device and optical information recording method for angularly multiplexing and recording data on pages on the same recording region on a hologram disk, data on each page is sequentially generated by sequentially dividing input data in predetermined units, the pages to be recorded on the same recording region are divided into page groups so that pages to be recorded adjacently by the angular multiplexing may not belong to the same group, each page group is individually subjected to inter-page coding processing for computing an error-correcting code and adding the computed error-correcting code, and data on the pages subjected to the inter-page coding processing is angularly multiplexed and recorded on the hologram disk.




f

Optical disc with pre-recorded and recordable regions and method of forming the disc

An optical disc having a region with pre-recorded data and a recordable region, a method of fabricating the disc, a stamper for forming a disc master, and a recording device for use with the disc are disclosed. Data recorded in the recordable region may be used for activation of the disc, providing unique identification or enhancing program content on the disc.




f

Increased spectral efficiency and reduced synchronization delay with bundled transmissions

Techniques are provided for increasing spectral efficiency over data channels in a storage or communication system. In some embodiments, data may be encoded and transmitted over multiple channels. The transmitted data from the multiple channels may be considered together as a channel bundle, thereby increasing the edge transitions of the group of signals to improve clock recovery and reduce coding constraints. In some embodiments, the channel bit size is reduced to maximize data rates based on the reduced coding constraints. Furthermore, the channel bundle has only one channel with timing markers, so that a receiver may receive information from the channel bundle and recover clocking based on the timing markers in the one channel.




f

Method and apparatus for laser control during recording

The invention relates to recording on a medium, and in particular, to laser control during recording data on an optical medium. A laser control method for dynamically adjusting laser power during recording data onto an optical disc comprises: recording normal data onto the optical disc according to an initial laser power; stopping recording when a trigger is generated; reading back the recorded normal data and generating a first recording quality index; recording a test pattern at a test pattern starting point according to a selected laser power; reading back the test pattern and generating a second recording quality index; and determining an adaptive laser power to continually record the normal data according to the first recording quality index and the second recording quality index.




f

Optical device, magnetic head, manufacturing method, and near-field light device

An near-field light device (100) is provided with: a first electrode layer (123) having a protruding portion (123a); a second electrode layer (121); and a light emitting layer (122), the protruding portion protrudes along a predetermined direction (Y axis direction) to be capable of extracting energy which is caused by emission of light at the light emitting layer, the predetermined direction intersects with a laminated direction (X axis direction) of the near-field light device, an edge surface of at least one portion of the projection portion is located at more outward side in the optical device than an edge surface of the second electrode layer is.




f

Information storage medium, reproducing method, and recording method

A machine readable information storage medium, a reproducing method and apparatus which reproduces data from the storage medium, and a recording method and apparatus for recording data on the storage medium. The information storage medium includes a control area which stores within a data structure information usable by the recording or reproducing apparatus to record or reproduce the data on or from the storage medium. The information stored within the data structure includes a version corresponding to a specification.




f

E-antenna near field transducer with thermal shunt to return pole

In a heat-assisted magnetic recording head for use in a hard disk drive, a thermal shunt is positioned between an E-antenna near field transducer (NFT) and a return pole, to draw excess heat away from the NFT region. The thermal shunt comprises two portions separated by a gap that has a trapezoidal cross-section, where the NFT-side of the gap is wider than the return pole-side of the gap.




f

Multi-purpose near-field transducer having a temperature coefficient of resistance

An apparatus includes a writer, an arrangement comprising a plasmonic near-field transducer (NFT) adjacent the writer and comprising a material having a temperature coefficient of resistance (TCR), and a lead arrangement connected to the NFT arrangement. In some configurations, the NFT arrangement includes a heat sink, and the lead arrangement is connected to the heat sink. In other configurations, the lead arrangement is connected directly to the NFT.




f

Hinge used for the treatment of anterior and posterior cruciate ligament injury and method for using the same

A device and method for using the device arranged to maintain anatomical alignment between a joint by creating a dynamic load around the joint to restore and maintain the anatomical alignment. The orthotic device uses a hinge to create a directed force on a tibia by maintaining misalignment of an instant center of rotation (ICoR) of the hinge at a position relative to an anatomical knee joint.




f

Orthopedic devices, systems, and methods of use

Orthopedic devices, systems, and methods of using the same are disclosed. In an embodiment, an orthopedic device intended for use with at least one moveable body part of a user may comprise a tubular body forming an interior surface and an exterior surface. The tubular body may include at least one opening and one or more shrinkable materials. The tubular body may be moveable between a first position, wherein the tubular body is configured to at least partially receive and at least partially surround the at least one moveable body part of the user, and a second position, wherein one or more portions of the tubular body are configured to generally conform to and at least partially restrict movement of the at least one moveable body part in one or more directions. The tubular body may be configured to move from the first position to the second position in response to a treatment.




f

Method and apparatus for monitoring surgical traction

Apparatus is described for measuring and displaying the magnitude of traction forces applied to a patient's lower limbs during surgery, and for measuring the direction and magnitude of counter-traction forces applied to the patient's body by the perineal post located at the patient's groin to oppose traction forces applied to the patient's lower limbs.




f

Custom braces, casts and devices having fenestrations and methods for designing and fabricating

A custom brace and method for fabricating the custom brace includes marking a body with reference points and/or other indicators. Multiple images of the body from multiple angles are then obtained. The images are used to determine the contours of the body and the other markings are located and used to design the custom brace. Fenestrations can be added to the brace design. The custom brace can be fabricated with the fenestrations as a single piece structure or in multiple pieces that are assembled to complete the custom device.




f

Force indicating attachment strap for an orthotic

An improved orthotic has a strap that secures the orthotic to a wearer, and comprises a tension indicator coupled to the strap. The tension indicator includes a first element disposed to produce a tactile signal when a tension in the strap reaches a threshold that is less than a permanent deformation threshold.




f

Muscle training apparatus and belt for muscle training

To ensure easy and secure placement of a belt for KAATSU muscle training on a target compressed site near the proximal portion of a limb. A belt 100B has a longer first band-shaped member 110 and a shorter second band-shaped member 120 both of which have a band shape and are connected to a ring-shaped joint member 130 at their respective ends. In order to place the belt 100B on the target compressed site, the limb (right leg in this case) on which the belt 100B is expected to be placed is inserted into a loop of the first band-shaped member 110 formed by passing the end of the first band-shaped member 110 through an opening in the joint member 130, and the belt is moved up to the target compressed site. Then, the first band-shaped member 110 and the second band-shaped member 120 are pulled with both hands in the opposite directions. The belt 100B is placed on the target compressed site with the belt 100B being tensioned appropriately.




f

Load carrier frame and system

Upper assembly including slot, hole array. Lower assembly conforming to hips. Lower assembly anchoring holes shaped/spaced as array. Lower assembly fastener hole for each slot; fastener hole having same position relative to anchoring holes as slot to array; having horizontal dimension equal to horizontal dimension of corresponding slot. Adjuster plate including anchoring points spaced as array holes. Each anchoring point dimensioned less than corresponding hole so as to fit snugly therein, and projecting a distance equal to thickness of corresponding upper and lower assembly anchoring hole. Forming an adjuster plate fastener hole for each lower assembly fastener hole. Each adjuster plate fastener hole having same position relative to anchoring points as slot to array. Releasable fastener for each lower assembly fastener hole. As assembled, fastener secures adjuster plate to upper and lower assembly such that anchoring points of adjuster plate are positioned through upper assembly and lower assembly anchoring holes.




f

Device and method for securing sutures and the like

A bandage and method for securing a tension member comprising a central body and a plurality of tabs disposed about the central body. A tension member may be disposed across or through a slit or aperture of the central body. A body adhesive on the lower surface of the central body may secure the bandage to the patient. The tension member may then be pulled across the upper surface of the central body and a first tab may be folded over and adhered to the tension member and central body. The tension member may then be pulled back across the first tab and a second tab may be folded over and adhered to the tension member and first tab. Likewise, the tension member may then be pulled back across the second tab and a third tab may be folded over and adhered to the tension member and second tab.




f

Orthopedic device and method for correcting skeletal abnormalities in a new-born baby

An orthopedic device for correcting abnormalities in the wrist, hand, fingers and thumb of a newborn baby comprises a lightweight glove shaped semi rigid shell constructed and dimensioned to fit a newborn baby within a few hours of birth. A wrist or lower arm and hand engaging portion are rotatably connected and adjustable in one millimeter increments. The adjustments are made with no more than one millimeter correction per 24 hour period. The shell includes a wrist and lower forearm engaging portion, a hand engaging portion and a finger engaging portion and is adjustable for rotationally clockwise or counterclockwise about the longitudinal axis of the lower arm bone. Further adjustments may be made to rotate the fingers upwardly or downwardly, to the left or right and rotationally and/or rotational movement between the hand and lower arm. The invention also contemplates an orthopedic method for correcting skeletal abnormalities of the wrist, hand, fingers and thumb of a newborn baby.




f

Ankle foot orthosis

In one aspect, an ankle foot orthosis generally comprises a leg member, a foot member, and a drive assembly. The leg member is configured to be releasably fastened to a leg of the wearer. The foot member is configured to be releasably fastened to a foot of a wearer, the foot member having anterior and posterior ends. The drive assembly includes a link member hingedly secured to the foot member at a hinge location adjacent to the posterior end of the foot member.




f

Method of using a compression bandage

A compression dressing and method of use is provided. The dressing is self-adherent, washable and reusable and provides a selected and generally constant pressure to the surface of an animal.




f

Extendible tourniquet cuff with stabilizer for improved utility and safety

A surgical tourniquet cuff that includes a stabilizer component that facilitates application of an overlapping cuff around the limb of a patient. The stabilizer is fixed to the cuff, and requires no tying or similar user manipulation to secure the overlapping cuff in alignment with the underlying cuff. The stabilizer improves the stability of the inflated cuff to prevent sideways shifting motion of overlapping cuff portions as the cuff is applied to the limb. The stabilizer also provides a handle mechanism to enable the user to snugly apply the overlapping cuff around the patient's limb while the overlapping portions remain properly aligned along their long axes. The stabilizer is designed to also facilitate attaching together two tourniquet cuffs end-to-end, with respective bladders overlapping and in proper alignment so that those attached cuffs can be used as a single, extended surgical cuff applied around a patient's limb.




f

Bioadhesive for periodontal gingival and/or bone tissues

The invention is directed to an adhesive strip, particularly an adhesive strip or bandage for use in periodontal treatments. The biocompatible adhesive strip comprises a flexible barrier with a biocompatible adhesive for use in an oral environment, wherein the adhesive is in a non-tacky state when dry and becomes adherent upon contact with liquids.




f

Bandage for facilitating transdermal respiration and healing

A bandage includes a reservoir filled with a perfluorochemical fluid, saturated with oxygen. Oxygen passes through a permeable membrane to the skin or wound to promote healing, and carbon dioxide travels from the skin or wound to the reservoir.




f

Orthosis modification tool

An apparatus is provided for mounting to a support for modifying an ankle-foot orthosis. The apparatus comprises a tooling device having a plurality of holes spaced over an outer surface of the tooling device. The tooling device includes a first portion having a longitudinal axis, and a second portion integral with the first portion and having a longitudinal axis substantially perpendicular to the longitudinal axis of the first portion. The second portion of the tooling device defines an opening for receiving the support. A peg is configured to be inserted into one of more holes of the tooling device. The peg comprises a body portion and a post depending from the body portion and configured to be received in the holes in the outer surface of the tooling device. In one embodiment, the body portion of the peg has a convex outer surface.




f

Apparatus for detecting and treating ventricular arrhythmia

A system and method for long-term monitoring of cardiac conditions such as arrhythmias is disclosed. The invention includes a pulse generator including means for sensing an arrhythmia. The pulse generator is coupled to at least one subcutaneous electrode or electrode array for providing electrical stimulation such as cardioversion/defibrillation shocks and/or pacing pulses. The electrical stimulation may be provided between multiple subcutaneous electrodes, or between one or more such electrodes and the housing of the pulse generator. In one embodiment, the pulse generator includes one or more electrodes that are isolated from the can. These electrodes may be used to sense cardiac signals.




f

Nasal septal splint and methods for using same

A splint for use in stabilizing the nasal septum of a subject following the completion of a septoplasty procedure has a longitudinal axis and is formed of a substantially rigid sheet having a longitudinal length, an anterior end, and a posterior end. The sheet is labeled with a plurality of guide markings that guide a user in shaping the splint prior to implantation of the splint within a nasal passage of the subject.




f

Method and apparatus for orthopedic cast removal utilizing a rotary impact driver

An orthopedic cast removal tool and method uses an unmodified, typically cordless, rotary impact driver and a embedded wire to cut through an orthopedic cast for removal. By merging it with a slotted spacer block specifically for this cast removal purpose, an ergonomic tool is provided which allays fears of orthopedic patients. When rotating and encountering high resistance of the plaster or fiberglass material of the cast, the cordless rotary impact driver does not bog down; since it seamlessly engages impact action, which offers an order of magnitude or more torque multiplication via short frequent pulses (several per second) to overcome this torque resistance. Thus a high amount of torque with very little reaction force is made available to cut through a cast while affording the technician good control. The cast is cut very rapidly with little dust creation and no jostling of the patient.




f

Knee orthosis, and method for controlling a knee orthosis

A knee orthosis and a method for controlling a knee orthosis including a thigh structure having a fastening structure to be fixed to a thigh, a lower leg structure which is pivotally coupled to the thigh rail using a joint mechanism and has a fastening structure to be fixed to a lower leg as well as a foot piece for supporting a foot, and an actuator device between the thigh structure and the lower leg structure. The fastening points of the actuator on the thigh structure and lower leg structure and the center of rotation of the joint mechanism form a triangle. The fastening points are arranged on the structures such that the connecting line between a fastening point and the center of rotation in an angular position of the knee in which the lower leg is bent at an angle ranging from 0° to 90° relative to the thigh.




f

Device and method for control of hemorrhage

A junctional and truncal tourniquet and a hip-girdling pelvic sling device for maintaining a desired amount of tension surrounding a person's hips and pelvis to securely support and stabilize a pelvis that has been fractured and for securing a pressure applying device to a person so that blood vessel-occluding pressure can be applied. Areas of mating types of fastener material such as mating hook-bearing fastener material and loop pile fastener material are arranged on the device to enable a strap to be secured at various effective lengths to provide a wide range of adjustability. The device may include inflatable bladders, stays, and a chin support and may be wrapped around a patient's neck as a cervical support collar, or around the torso to occlude blood vessels proximal to an injury on a limb.




f

Film dressing with improved application assistance

A film structure having a polymer film and an application system enabling the film structure to be handled in a simple manner. The application system is arranged on a first side of the polymer film and has at least one supporting film to which at least one gripping strip is applied. The polymer film also has at least one first region without a supporting film.




f

Wound dressing inhibiting lateral diffusion of absorbed exudate

A wound dressing including a hydrophilic layer and a hydrophobic layer is described. The hydrophilic layer absorbs exudate from a wound and the hydrophobic layer absorbs the exudate from the hydrophilic layer and traps the exudate. Because the hydrophilic layer is used adjacent to the wound, the exudate is readily absorbed thereby reducing the risk of maceration and infection of the wound tissue by the exudate. The hydrophobic layer receives the absorbed exudate from the hydrophilic layer and traps the exudate through an interaction that in turn prevents lateral diffusion of the exudate through the bandage to healthy portions of the skin. The hydrophilic and hydrophobic layers are fabricated from polymer fibers that can be spun to include components that facilitate wound healing, such as poly(hexamethylene biguanide) and/or hyaluronic acid.




f

Fastening element, use of the element for immobilizing object, preferably parts of the body and device containing the element

The invention relates to a fixing element (33) extending as a flat, particularly lamellar element along a preferred direction (34) and comprising a corrugated sheet metal core (18) as a central component, said core providing the fixing element (33) with the characteristic of being integrally rigid and permanently deformable by hand, and said core being covered by a cover (36, 37). For such a fixing element, a large range of use is achieved in that the corrugations of the corrugated core sheet (18) are oriented substantially parallel to the preferred direction (34), and that means (38, 39) for releasably attaching the fixing element (33) are disposed on the fixing element (33).




f

Composite, electrode catalyst including the composite, method of preparing the composite, and fuel cell including the composite

A composite including a metal having oxygen-reducing activity, nitrogen and carbon, the composite comprising polyhedral particles, an electrode catalyst including the composite, a method of preparing the composite, and a fuel cell using the composite.




f

Method for restoring activity to a spent hydroprocessing catalyst, a spent hydroprocessing catalyst having restored catalytic activity, and a hyrdoprocessing process

A regenerated spent hydroprocessing catalyst treated with a chelating agent and having incorporated therein a polar additive.




f

Nitrogen fixation by titanium dioxide

In various embodiments, the present disclosure provides a method of fixing nitrogen. An amount of titania catalyst is provided and contacted with a feed stream that includes nitrogen. The titania catalyst is heated. The heated titania catalyst fixes nitrogen in the feed stream to form nitrogen products, such as nitrates. The nitrogen products are then removed from the titania catalyst. In some examples, the titania catalyst is treated with a base. In further examples, the catalytic process is carried out in the absence of light for photochemically activating the titania catalyst.




f

Catalyst for hydrogenation of oxalic ester to ethanol, method of preparing the catalyst, and method of using the same

A catalyst including: a support, the support including a mixture of SiO2 and ZrO2; an active ingredient including copper; a first additive including a metal, an oxide thereof, or a combination thereof; and a second additive including Li, Na, K, or a combination thereof. The metal is Mg, Ca, Ba, Mn, Fe, Co, Zn, Mo, La, or Ce. Based on the total weight of the catalyst, the weight percentages of the different components are as follows: SiO2=50-90 wt. %; ZrO2=0.1-10 wt. %; copper=10-50 wt. %; the first additive=0.1-10 wt. %; and the second additive=0.1-5 wt. %.




f

Component having a catalytic surface, method for the production thereof, and use of said component

A component part has a catalyst surface. This surface has metallic components and components of MnO2 (13) in contact with the former. The metallic components are preferably formed of Ag and/or Ni. These material pairs achieve a great improvement in catalyst action compared to the pure metals. Especially in the case of use of Ni, which is toxicologically safe, these surfaces, for example, may also find use in ambient air purification for reduction of the ozone content. The surface can be applied, for example, by a coating of the component part, in which case the metallic component and the component of MnO2 are applied in two layers.




f

Catalyst and a manufacturing method thereof

A catalyst can be manufactured using a method which can include preparing a first aqueous solution including zirconium, filling the pores of the porous alumina with the aqueous solution by a pore-filling method using the capillary phenomenon, forming a zirconia layer in the pores of the porous alumina, preparing a second aqueous solution including noble metals, filling the pores of the porous alumina with the second aqueous solution by a pore-filling method using the capillary phenomenon, and drying and baking the porous alumina to carry the noble metals in the pores of the porous alumina formed with a zirconia layer.




f

Catalyst for preparing carboxylic acids and/or carboxylic anhydrides

The present invention relates to a catalyst for preparing carboxylic acids and/or carboxylic anhydrides, which has a plurality of catalyst zones arranged in series and has been produced using a vanadium antimonate having a maximum content of crystalline valentinite of 5% by weight. The present invention further relates to a process for gas-phase oxidation in which a gas stream comprising at least one hydrocarbon and molecular oxygen is passed through a catalyst which has a plurality of catalyst zones arranged in series and has been produced using a vanadium antimonate having a maximum content of crystalline valentinite of 5% by weight.