359 results about "Mathematical Calculus" patented technology

Instrumented networks, computer systems and platforms having target subjects (devices, transactions, services, users, organizations) are disclosed. A security orchestration service generates runtime operational integrity profiles representing and identifying a level of threat or contextual trustworthiness, at near real time, of subjects and applications on the instrumented target platform. Methods and systems are disclosed for calculating security risks by determining subject reputation scores. In an embodiment, a system receives a query for a reputation score of a subject, initiates directed queries to external information management systems to interrogate attributes associated with the subject, and analyzes responses. The system receives a hierarchical subject reputation score based on a calculus of risk and returns a reputation token. In another embodiment, a method provides real time attestation of a subject's reputation to a service provider using an endpoint trust agent, and a trust orchestrator comprising a reputation broker and a trust broker.

A percutaneous surgical instrument for de-bulking calculi or drilling bone includes an actuator for generating vibrations at ultrasonic frequencies and a horn coupled to said actuator for amplifying the actuator vibration. A fixed probe is attached to said horn for engaging the calculi and introducing the ultrasonic frequencies thereto. A floating probe is disposed concentric to and under said fixed probe and slidable thereover. A free mass is disposed between the horn and the floating probe for oscillating therebetween, in response to actuator vibration, for causing low frequency impact with the calculi.

Disclosed is a stereo vision measuring device based on a binocular omni-directional vision sensor. Each ODVS composing the binocular omni-directional vision sensor adopts the design of mean angle resolution. The parameters of two image collection cameras are in complete accord and in possession of a pretty good symmetry, and can quickly realize the point-to-point matching. The device adopts a unified spherical coordinate in the process of data collection, processing, description and representation of space objects in terms of centering on human in visual space, and adopts the elements of distance sense, direction sense and color sense to express features of each characteristic point, thereby simplifying the complication of calculus, omitting the calibration of the cameras, facilitating the feature extraction and realizing the stereo image matching easily, finally realizing the purpose of high-effective, real-time, and accurate stereo vision measurement. The device can be applied in a plurality of fields of industrial detection, object identification, robot automatic guidance, astronautics, aeronautics, military affairs, etc.

The invention discloses an implementation method of skinned skeletal animation. The implementation method comprises the following steps: A, constructing a skeleton model and a skinned mesh model which constitute a role model; B, determining a skeleton which influences the mesh vertexes on the skinned mesh model, and determining the influence weight according to a geometrical relationship and a physical relationship between the skeleton and the vertexes; C, carrying out calculus of interpolation between each two adjacent key frames according to a key frame sequence of skeleton movement, which is stored in a role model file, and determining new position and new orientation of each skeleton at certain moment; and D, calculating new position and new orientation of each vertex under a world coordinate system according to skeleton index and corresponding influence weight which influence each vertex and are stored in each vertex on the skinned mesh model, and thus achieving skinned skeleton animation. According to the implementation method disclosed by the invention, the joint problem in skeletal animation is solved, the effect is real and vivid, and is more flexible compared with that of vertex animation, and little memory space is occupied while a favorable animation effect is finished; the skinned skeletal animation can be constructed more easily and rapidly.

This invention relates to a periodontal instrument and curettage method for separating and removing calculus and diseased granulation tissue from the tooth surface and periodontal cavity in deep pockets greater than 10 mm. The invention is comprised of a straight shaft, a distal portion in parallel orientation with and terminating in a spoon-shaped blade with a rounded tip and continuous sharp edge. The approximate 90 degree angle orientation between the distal and proximal shank portions, rounded blade tip, and parallel alignment of the blade face relative to the distal shank portion enhance maneuverability, accessibility, and efficiency and minimize tissue trauma during periodontal curettage.

This invention discloses a teeth whitening candy intended to fill the gap between daily brushing and the need to augment dental hygiene between visits with dental professionals. The candy will enhance the removal of the tartar and plaque, which accumulates after meals. In addition to whitening teeth, the candy will help to dissolve tartar, calculus and stains from the various surfaces of teeth. Although the candy is intended as stand alone product, it will be also useful in maintaining/prolonging the effects of professional whitening procedures.

The present invention implements a method and system for dynamically adapting the modulation and coding scheme for radio links in a wireless communications network based on a retransmission environment model in order to maximize throughput and most efficiently allocate bandwidth resources. The present invention encompasses a refined calculus and methodology for deriving the link adaptation thresholds in a retransmission environment using a complex model and analysis of the retransmission environment. The present invention holds particular application for wireless data communications as opposed to real time data services because it is based on a retransmission model applicable primarily for data services. A critical component of this new link adaptation system is a “no transmission” cutoff mode that is selected for SIR below a base threshold value. This new mode prevents system instability and misallocation of bandwidth in a wireless communication system.

The invention discloses a measurement method of volumes of goods. The method comprises following steps of using a two-dimensional laser scanner to acquire profile angles and distance information of a loaded vehicle and an empty vehicle; determining running direction and position information of the vehicles; carrying out reconstruction processing on the profile angles and distance information of the loaded vehicle and the empty vehicle, angle echo information and the running direction and position information of the vehicles; by use of the point cloud filtering method, processing the acquired cloud point data of the loaded vehicle and the empty vehicle, and extracting three-dimensional point cloud data of a goods carriage; and based on the calculus algorithm, by use of a method for constructing a triangular plane, processing points in the point cloud data of the loaded vehicle and the empty vehicle, ad obtaining the volume information of the loaded vehicle and the empty vehicle. According to the invention, the measurement method is free from harmful effects caused by the resolution, the film speed, the distortion of a lens, the installation position and the environmental factors of a front end image acquisition device; the acquired data serves as the direct measurement data; and the measurement method is advantaged by high result accuracy, timeliness, objectiveness and vividness, and is worthy of promotion.

The invention discloses a positioning calculating method and belongs to the technical field of satellite navigation. According to the method, a least square method, a Newton iteration method and difference calculus are integrated, and an improved positioning calculating method of a global navigation satellite system (GNSS) receiver is provided. The positioning calculating method of the GNSS receiver includes the following steps: first, calculating pseudorange observation equation sets by using the least square method so as to obtain a general position, conducting iterative computations by using the general position as an initial value of the Newton iteration method to obtain an accurate position, and finally, calculating position differences so as to improve positional accuracy further. By means of the positioning calculating method of the GNSS receiver, positioning calculating speed is raised, and simultaneously, the positional accuracy is effectively improved.

The invention provides a femtosecond laser absolute distance measuring device based on non-linear optical sampling. The femtosecond laser absolute distance measuring device comprises two femtosecond laser frequency combs with different repetition frequencies, a Michelson interference distance measuring device, a second kind phase matching non-linear optical frequency multiplication structure and a data acquisition and processing unit. The two femtosecond laser frequency combs with the different repetition frequencies are used for achieving optical scanning on a time domain. The second kind phase matching non-linear optical frequency multiplication structure is used for generating frequency multiplication light when input pulses coincide in the time domain. The data acquisition and processing unit is used for detecting frequency multiplication optical signals, conducting calculus of differences on collected data, extracting the sequence number of a zero crossing point in the data after the difference in an array, and calculating the length difference of a reference arm and a measuring arm. The invention further provides a measuring method using the femtosecond laser absolute distance measuring device. According to the femtosecond laser absolute distance measuring device and method based on non-linear optical sampling, the off-set frequency does not need to be locked, absolute distance measuring of a continuous range based on a time-of-flight method is achieved, and therefore the applied field of femtosecond laser absolute distance measuring is widened.

The present invention provides a novel composition of matter comprised of a mixture of two specific classes of compounds—Free-B-Ring flavonoids and flavans—for use in the prevention and treatment of diseases and conditions associated with mouth, gums and teeth. This composition of matter simultaneously inhibits cyclooxygenase (COX) and lipoxygenase (LOX) enzymatic activity and reduces cytokine production at the mRNA level in normal, aged and damaged periodontal cells and tissues. This invention further provides a method for the prevention and treatment of diseases and conditions of the mouth, gums and teeth. The method for preventing and treating diseases and conditions of the mouth, teeth and gums is comprised of administering to a host in need thereof a therapeutically effective amount of a composition comprising a mixture of Free-B-Ring flavonoids and flavans synthesized and/or isolated from a single plant or multiple plants, preferably in the Scutellaria, Oroxylum, Acacia or Uncaria genus of plants and pharmaceutically and/or cosmetically acceptable carriers. Finally the present invention provides a method for the prevention and treatment of diseases and conditions of the mouth, teeth or gums, including but not limited to periodontal diseases, such as gingivitis, periodontitis, pulpitis, periodontal conditions caused by the physical implantation of oral dentures, trauma, injuries, bruxism, neoplastic and other degenerative processes; material alba, pellicles, dental plagues, calculus, and stains. Use of the composition described herein also affords the benefit of maintaining optimum saliva production and pH, minimizing bacterial growth, reducing the formation of pellicles and plague, inhibiting tooth decalcification and tooth caries (decay), promoting remineralization, which yields healthy gums, whitening teeth, maintaining healthy oral hygiene and reducing oral malodour (halitosis).

A calculus teaching aid includes a substrate, a plurality of visual components configured to define a two-dimensional graphical model of the first derivative, and a plurality of symbolic labels configured to define a variety of characteristics of the graphical model. The substrate, visual components and labels are preferably magnetized for secure attachment to one another. The calculus teaching aid may be configured in a plurality of different ways to demonstrate the various aspects of the first derivative.

A method of determining orientation parameters of a rigid body (72, 184), including: associating at least two multi-axis accelerometers (40, 42, 202, 204, 206, 208) with the rigid body, wherein the body has a base end 76, 188), a distal end (77, 190), and a line of symmetry between the base end and the distal end. The two first multi-axis accelerometers (40, 42) (202, 204) are disposed at a first point (80, 212) along the line of symmetry between the base end and the distal end. Each first multi-axis accelerometer is disposed at equal distances from the line of symmetry. The line of symmetry and both first multi-axis accelerometers lie in a first plane. The method further includes: associating a gyroscope (46, 210) with the body at the first point, equally between both first multi-axis accelerometers; gathering measured data from the two first multi-axis accelerometers and the gyroscope; and applying analysis free of calculus to determine a first inclination angle (88) (192), of the body from a stable orientation.