74results about How to "Overcome the lack of robustness" patented technology

Shaped, composite bodies are provided. One portion of the shaped bodies comprises an RPR-derived porous inorganic material, preferably a calcium phosphate. Another portion of the composite bodies is a different solid material, preferably metal, glass, ceramic or polymeric. The shaped bodies are especially suitable for orthopaedic and other surgical use.

Shaped, preferably porous, inorganic bodies are provided which are prepared from a reactive blend. In accordance with one preferred embodiment, the solution is absorbed into a porous sacrificial substrate such as a cellulose sponge. The solution-saturated substrate is heated and an oxidation-reduction reaction occurs thereby forming an inorganic solid. A shaped, inorganic body is formed in situ. Optional, but preferred additional thermal treatment of the shaped, inorganic body removes the organic substrate, leaving an inorganic body that faithfully mimics the porosity, shape, and other physical characteristics of the organic substrate. Inorganic substrates may also be used to good effect. Large varieties of shaped bodies can be prepared in accordance with other embodiments of the invention and such shapes find wide use in surgery, laboratory and industrial processes and otherwise. The invention also provides chemically and morphologically uniform powders, including those having uniformly small sizes.

A filter membrane, methods of making such filter membrane and apparatus employing such filter membrane are disclosed, in which the filter membrane is a monolithic polymeric membrane that includes a polymeric filter layer including a micron-scale precision-shaped pores and a polymeric support layer that has a precision-shaped porous support structure for the filter layer. Several methods are disclosed for making such a membrane using micromachining techniques, including lithographic, laser ablation and x-ray treatment techniques. Several filter apparatus employing such a membrane are also disclosed.

A method and an apparatus for tracking an object are disclosed. The method includes determining a first position by a first tracking template and determining a second position by a second tracking template, the first and second tracking templates being formed based on first and second feature sets, respectively, the first feature set being different from the second feature set, and the first feature set and the second feature set including one or more features; and determining a final position based on the first position and the second position, wherein the first tracking template is updated for each of a predetermined number of frames, the second tracking template is updated based on a predetermined rule, the second tracking template and the first tracking template are independently updated, and the update frequency of the second tracking template is lower than the first tracking template.

A bone graft substitute composition can include essentially of calcium sulfate, a mixing solution, and a plasticizing substance. A bone graft substitute composition can include calcium sulfate, demineralized bone matrix, cancellous bone, a plasticizing substance, and a mixing solution.

The invention provides a method for retrieving an Internet video based on contents. The method comprises the following steps of: 1, acquiring a plurality of videos serving as a training sample set from Internet, building a video library, and extracting a blocking color histogram characteristic and a brightness characteristic of each frame in all videos in the training sample set, wherein the blocking color histogram characteristic and the brightness characteristic are used as a segmentation judging basis of a camera; 2, self-adaptively segmenting the camera for all the videos in the training sample set according to the two kinds of characteristics extracted in the step 1, and acquiring a camera segmentation list; 3, extracting key frames for all videos in the training sample set accordingto the camera segmentation list and the characteristics and acquiring the indexes of the key frames; and 4, for a video to be retrieved, performing the steps 1, 2, and 3 to acquire the key frame list, and fast positioning and retrieving by using a new soft judgment method. By the method for retrieving the Internet video based on contents, videos can be fast positioned and retrieved; and the method is high in the processing speed, the retrieval efficiency and the retrieval accuracy rate.

A micromechanical rate-of-rotation sensor for detecting a rate of rotation about a sense axis includes a substrate, a detection unit, means for generating a rotational oscillation of the detection unit about a drive axis which is orthogonal to the sense axis, and a central suspension means rotatably coupling the detection unit to the substrate in a fulcrum of the detection unit. The central suspension means is configured to permit the detection unit to perform a detection movement about a detection axis orthogonal to the sense axis in the form of a rotational oscillation about the central suspension means. The sensor also includes at least two second suspension means coupling the detection unit and the substrate for providing a response behavior specific to rotation about at least one of the drive axis and the detection axis.

A sample dispensing apparatus is realized which can detect a dispensing abnormality occurred during the sample dispensing operation regardless of the type and the extent of the abnormality. A pressure sensor is connected to a dispensing flow passage system, including a sample probe and a dispensing syringe, and a plurality of output values of the pressure sensor during the sample dispensing operation are taken in. A multi-item analysis (based on the Mahalanobis distance) is carried out by using, as items, the plurality of taken-in output values of the pressure sensor. Whether the dispensing is normally performed or not is determined by comparing an analysis result with a threshold. A highly reliable determination result is obtained in spite of variations of sensitivity of the pressure sensor.

A method of infrared-optically determining the concentration of at least one analyte in a liquid sample, wherein the infrared absorption of the analyte(s) is measured and compared with a standard, which is characterized in that the liquid sample is sampled with an infrared radiation of high light density, wherein the infrared radiation has a sharp intensity peak at at least one wave length, as well as an arrangement for the infrared-optical transmission determination of the concentration of at least one analyte in a liquid sample, with a sample cuvette flowed through by the sample liquid, the sample cuvette being arranged in the radiation path between a radiation source for providing the infrared radiation and a detector for measuring the infrared absorption induced by the analyte in the sample cuvette.

A reductant delivery unit having active cooling which is constructed to have sufficient structural robustness, and to improve corrosion resistance of the assembly, where an attack on the base injector is conceivable with the use of incorrect coolant media. The reductant delivery unit has an upper shield, a lower shield connected to the upper shield, and an inner sleeve. The reductant delivery unit also includes a lower sleeve connected to the inner sleeve and the lower shield. A liquid cooling cavity is formed by the connection between the inner sleeve and the lower shield, the lower sleeve and the lower shield, and the lower sleeve and the inner sleeve. Coolant flows into the liquid cooling cavity to provide a cooling function to an injector partially located within the inner sleeve, and a corrugated portion of the lower sleeve transfers heat away from at least a portion of the injector.

The invention discloses a method for determining a local optimal route of ship navigation by aiming at the convex obstacles. The method includes the following six steps: confirming the starting point, the target point and the area of the navigation by combining the task information; generating the no-sail zones according to the convex obstacles in the navigation area; using the longitude and latitude to generate a grid map based on the navigation area; calculating all the basic elements of the navigation route-planning technology; connecting the starting point with the target point by a straight line and calculating the included angle between the connecting line and the north direction; introducing the included angle as heuristic information into the navigation route-planning technology to obtain a local optimal route. In the method, the included angle between the north direction and the connecting line from the starting point to the target point is introduced as heuristic information into the navigation route-planning technology. Taking into account the relative positions of the starting point and the target point, the method is conveniently implanted in the ship navigation route-planning system, more efficiently provides the navigators with the local optimal route which meets the actual requirements, and makes the ship navigation safe and economical during the whole navigation route.

A device for acquiring a combined eye gaze image of an object under dark-eye effect conditions, with a first camera, a second camera, a first light source and a second light source being located on opposite sides of, and on essentially equal distance to a central optical axis. A control unit is arranged to acquire the combined eye gaze image by capturing, in a first point in time, a first frame of the object with the first camera with the second light source activated, and, at a second point in time, capturing a second frame of the object with the second camera with the first light source activated. The device comprises no additional light sources further away from the central optical axis than the first location and the second location. The device is thereby designed as compact as possible while a sufficient eye gaze tracking accuracy and robustness is maintained.

A structure of vehicle seat including a seat cushion frame pivoted therein, a striker, and a lock mechanism for locking and unlocking the seat cushion frame to and from the striker. The lock mechanism is disposed in the rearward area of the seat cushion frame, while the striker is fixed on the floor of vehicle, so as to allow smooth and direct escape of a great load from the seat cushion frame via the striker to the floor. This avoids the necessity of any reinforcement leading to weight increase of the seat. Also, a seat belt is provided in the seat cushion frame together with the lock mechanism in an integral manner.

A semiconductor package includes a carrier, a chip, a stiffener and an encapsulant. The chip is disposed on the carrier. The stiffener is disposed around the chip, directly contacts the carrier, and is mounted on the carrier. The encapsulant is adapted to seal the chip and the stiffener.

The invention introduces “crossed” navigation message authentication, which comprises a) generation and transmission of unpredictable bits periodically from satellites currently not connected to the ground mission segment and b) generation of digital signatures for the data from these satellites, and the transmission thereof through satellites that currently are connected to the ground mission segment. An attacker cannot spoof the navigation message as it contains an unpredictable bit pattern that is verified a few seconds later through a digital signature.

A laser video endoscope provides a small diameter (25 mils) probe. This size probe requires a minimum access lesion. The tradeoff that produces such a probe includes reducing the laser guide fiber to 100 microns in diameter, employing an image bundle having approximately 6,000 optical fibers and an illumination bundle having only about 210 optical fibers. The probe where it extends into the handle has a 45 mil outer diameter and a 5 mil thick sidewall to provide resistance to breaking at the juncture with the handle. The probe is rigid, preferably metal. The probe has a larger diameter proximal portion and a smaller diameter distal portion. The distal portion of the probe has a length limited to about 710 mils. A green laser of 532 nanometers wavelength provides a collimated laser beam that causes minimal loss in the 100 micron laser optical fiber.

The invention relates to an electrical installation, especially a medium-voltage switchgear, comprising at least one encapsulated function module (FM), a decompression channel (DK) which is connected to said function module, and at least one in-flow opening (EO . . . ) which connects the function module (FM) to the decompression channel (DK). The covering surface (DF 1,2,3) of the decompression channel (DK), opposite the inflow opening (EO . . . ), comprises at least one partial region which is obliquely oriented in relation to the inflow direction. Hot gases and high pressures produced during an accidental arc can thus be evacuated from the installation, without any risk to humans and buildings. Pressure channels are used, inter alia, in installations used in relation to medium-voltage technique for providing and distributing energy.

The invention relates to a thermal infrared transparent polymer film suitable for use in an identification device, said film comprising an infrared transparent polymer matrix with a pigment dispersed therein, wherein the thickness of the polymer film is greater than 30 micron and wherein the polymer film has an average transmission in the thermal infrared of greater than or equal to 0.5. Preferably, the pigment comprises an inorganic material. There is further provided a thin film, thermally reflective material (20) comprising the afore-mentioned infrared transparent film (21) and an infrared reflective layer provided on one surface thereof (22).

A magnetic read head having a reduced read gap and a stable magnetic pinned layer structure. The sensor includes a seed layer that has a surface formed with an anisotropic texture. A magnetic pinned layer formed over the seed layer has a body centered cubic structure which causes the pinned layer structure to have a magnetic anisotropy with an easy axis oriented perpendicular to the air bearing surface when deposited over the textured seed layer. A magnetic free layer structure formed over the pinned layer structure and over a non-magnetic barrier layer has a face centered cubic structure which causes the magnetic free layer to have a magnetic anisotropy with an easy axis oriented parallel with the air bearing surface.

A power system for dynamic positioning of a vessel. The power system reduces fuel consumption, carbon buildup deposits and the risk of cylinder bore glazing while in combustion engine driven generators and provides an adequate protection against blackouts. The power system includes first and second combustion engine driven generators, a battery unit, and a converter unit arranged to provide power to the vessel from the battery unit. A first operational state of the power system in which the first combustion engine driven generator is arranged to deliver power to the vessel, and a second operational state, in which the first generator is subject to a fault, the second combustion engine driven generator arranged to deliver power to the vessel, and the converter unit is arranged to deliver power to the vessel during transition between the states.

A shift control apparatus of an automatic transmission of a motor vehicle to which torque is transmitted from an engine via a fluid coupling device is provided. In the automatic transmission including a plurality of hydraulically operated friction elements, a clutch-to-clutch downshift is carried out during coasting of the vehicle by releasing one of the friction elements and engaging another friction element. A controller of the shift control apparatus detects a difference between input and output rotation speeds of the fluid coupling device, and increases an engine speed by a controlled amount based on the difference between the input and output rotation speeds when the clutch-to-clutch downshift is carried out during coasting of the vehicle, so that the vehicle is brought into a minimal driving state in which the engine speed is slightly higher than the output rotation speed of the fluid coupling device.

Laser video endoscope has laser guide, illumination guide and image guide which extend through optical probe and through hand piece that supports the probe. Hand piece is connected by optical fiber cable to laser energy source and illumination source. Image is transmitted from hand piece to image processing interface by camera assembly optically coupled and mounted directly to hand piece and via electrical cable extending from camera assembly. Camera and its electrical cable can be uncoupled from hand piece and reused. The rest of the product, including probe and hand piece, can be disposed of after each medical routine. Probe can have proximal portion and distal portion such that proximal portion extends from distal end of hand piece, and outside diameter of proximal portion as measured at least near the distal end of hand piece is greater than the outside diameter of the distal portion.

The invention discloses a double-observer cooperative passive positioning method and system. The method comprises the steps of acquiring filtering information of a model selected at the previous moment and the observed quantity of an observer at the current moment ; determining the mixing probability of the model selected at the previous moment according to the mutual transition probability of theselected model and the probability that the model selected at the previous moment correctly describes the target motion; calculating a filtering information initial value according to the mixing probability of the model selected at the previous moment and the filtering information of the model selected at the previous moment, wherein the filtering information initial value comprises a filtering estimation result initial value and a filtering estimation error covariance initial matrix; respectively calculating a target passive tracking and positioning result of each observer at the current moment; and performing weighted fusion processing according to the target passive tracking and positioning result of each observer at the current moment to obtain a fused target tracking and positioningresult. The method and the system have the advantages that the positioning time can be shortened while the positioning precision is improved.