Abstract: A method can include determining an initial position of an object with respect to a sensing region formed by a plurality of sensors and having a core region bounded by at least one edge; if the initial position is proximate to the edge and a size of the object was previously calculated, determining a final edge position of the object using the previously calculated object size; and if the initial position is proximate to the edge and the size of the object was not previously calculated, determining a size of the object.

Abstract: Methods, systems, and computer programs are presented for automated detection and mitigation of Denial of Service (DoS) attacks. One method includes an operation for collecting traffic data from service network routers that provide users access to a service. The traffic data is applied to security rules to identify a blacklist of illegitimate users to be blocked. Further, the method receives from the one or more servers a whitelist with information regarding legitimate users and their geographical location. A safe blacklist is determined for each router based on the blacklist and the whitelist, and the respective safe blacklist is sent to each router. Legitimate users are not blocked from accessing the service, but an illegitimate user spoofing a legitimate user is blocked by the routers when trying to access the service from a geographic location that is not the geographic location of the legitimate user.

Abstract: Methods of low power detection of an activation phrase are described. A microphone system comprises dedicated hardware logic for detecting a pre-defined activation phrase in an audio stream received via a microphone. If the pre-defined activation phrase is detected, the hardware logic sends a trigger signal to activate a module, such as a main speech detection module, which is external to the microphone system and which may be in a low power standby state.

Abstract: Embodiments of the present disclosure include a riser tensioner includes a cylinder barrel, a rod reciprocally carried within the cylinder barrel and having an external end sealingly extending out of a proximal end of the cylinder barrel, and a piston on an interior end of the rod that slides and seals against an inner surface of the cylinder barrel. The tensioner further includes a selectively sealed low pressure chamber in the cylinder barrel between the piston and a distal end of the cylinder barrel and fillable with a low pressure fluid, and a selectively sealed annulus between the rod and the cylinder barrel, the annulus extending between the piston and the proximal end of the cylinder barrel and fillable with an annulus fluid at a pressure higher than the low pressure fluid, thereby urging the piston and rod towards retraction.

Abstract: A method is provided for processing image data for display by a multiple-view display device (24) so as to reduce the visibility of undesirable artefacts. Image pixel data are received (20, 21) representing the pixel brightnesses of respective images or sequences of images. The pixel data are processed (22) by applying a unidirectional filter. The processed pixel data for the images may then be interleaved (23) and supplied to the display device (24).

Abstract: A robotic climbing platform has a chassis and a carriage adapted to support and move the chassis relative to a climbing surface. An adhesion mechanism provides an adhesion force between the climbing platform and the climbing surface. The adhesion mechanism has one or more suction pads adapted to retain an adhesion force between the climbing platform and the climbing surface during movement of the chassis relative to the climbing surface.

Abstract: Unique apparatuses, methods, and systems of opposing, limiting, and/or preventing undesired or un-commanded compressor rotation are disclosed. One exemplary embodiment is an HVACR system comprising a variable frequency drive configured to drive an electric motor to rotate a screw compressor or scroll compressor. A controller is configured to monitor various aspects of the system and to control the drive. When a condition indicative of potential undesired or un-commanded compressor rotation is identified, the controller commands the variable frequency drive to control the motor to limit and preferably prevent compressor rotation. One technique comprises shorting switches of the drive to a DC bus rail to allow back EMF induced current in the motor windings to be dissipated through winding resistance thus providing a damping force. Another technique comprises controlling the inverter to insert a DC current into the motor to cause the motor to align to and hold a particular position.

Abstract: A thermosetting polymer formulation includes: 40 to 90 volume percent of a thermosetting polymer system; 10 to 40 volume percent, preferably 20 to 35 volume percent, preferably 20 to 30 volume percent, of a plurality of hexagonal boron nitride platelets having a mean particle diameter of 5 to 20 micrometers, preferably 8 to 15 micrometers, and a D10 particle diameter of 3 to 7 micrometers, preferably 3 to 5 micrometers, and a D90 particle diameter of 20 to 30 micrometers, preferably 25 to 30 micrometers; a total of 0.01 to 10 volume percent of a coupling agent, an impact modifier, a curing agent, a defoamer, a colorant, a thickening agent, a release agent, an accelerator, or a combination comprising at least one of the foregoing, wherein the volume percentages are based on the total volume of the formulation.

Abstract: The invention relates to a compound of formula (I) wherein R1 to R4 and n are defined as in the description and in the claims. The compound of formula (I) can be for treating.

Abstract: Fan blade containment system includes circular tile layer of annular ceramic tiles attached to and extending radially inwardly from a shell, radially inner and outer annular surfaces of ceramic tiles bonded to a radially inner composite layer and the shell respectively with elastomeric inner and outer adhesive layers respectively. Elastomeric adhesive layers between circumferentially adjacent overlapped or scarfed edges along circumferential edges of the ceramic tiles overlap and mate along oppositely facing surfaces of adjacent ones of the ceramic tiles. Inner and outer adhesive layers and elastomeric adhesive layer may be a double-sided adhesive foam tape. Scarfed edges may be bevels or rabbets. Shell may be made of a metal or composite material. Fan blade containment system may be bonded to and extend inwardly from fan case circumscribing fan blades of a fan. Inner composite layer and composite outer shell may be co-cured with ceramic tiles therebetween.

Abstract: This disclosure relates to a system and method for facilitating interaction with a virtual space via a touch sensitive surface. The user may interact with the virtual space via a touch sensitive surface in a wireless client device. The user may interact with the virtual space by providing control inputs to the touch sensitive surface. The control inputs may be reflected in one or more views of the virtual space. In some implementations, the system may be configured such that the one or more views of the virtual space include one or more views of a shooter game. The system may be configured such that the user may interact with the game primarily with fingers from one hand via the touch sensitive surface. The user may enter various command inputs into the touch sensitive surface that correspond to actions in the virtual space presented to the user.

Abstract: Systems and methods are used to control operation of a rotary compressor of a refrigeration system to limit or prevent movement of rotors due to axial thrust loading resulting from rapid changes in speed of the rotors of the compressor. The operational profile of the motor is controlled to maintain acceleration torque and deceleration torque within predefined limits. The acceleration torque and deceleration torque are maintained within the predefined limits by controlling the speed of the motor, or by controlling the torque applied by the motor to the rotors during acceleration or deceleration.

Abstract: An online educational publishing platform generates an effective grade point average for respective users of the platform by aggregating data describing educational activities of the users. The educational activity data includes users' interactions with pages of content distributed by the online educational platform, as well as data retrieved from user profiles of the users and external databases. The educational activity data is filtered into a plurality of categories and scored based on scoring metrics associated with the categories. Using the scored user activity data, the publishing platform generates the effective grade point averages. Each user may have multiple eGPAs whose value depends on how the eGPA was generated. Accordingly, an eGPA provides a quantitative representation of a student's academic engagement, achievements, and experiences.

Abstract: Methods for isolating 9-{(R)-2-[((S)—{[(S)-1-(isopropoxycarbonyl)ethyl]amino}phenoxyphosphinyl)methoxy]propyl}adenine (compound 16): a method for preparing in high diastereomeric purity, intermediate compounds 13 and 15: and a method for preparing intermediate compound 12: 9-{(R)-2-[((S)—{[(S)-1-(isopropoxycarbonyl)ethyl]amino}phenoxyphosphinyl)methoxy]propyl}adenine has anti-viral properties.

Abstract: The present disclosure provides processes for the preparation of a compound of formula: which is useful as an antiviral agent. The disclosure also provides compounds that are synthetic intermediates.

Abstract: An active matrix electrowetting on dielectric (AM-EWOD) device includes a plurality of array elements configured to manipulate one or more droplets of fluid on an array, each of the array elements including a corresponding array element circuit. Each array element circuit includes a top substrate electrode and a drive electrode between which the one or more droplets may be positioned, with an insulator layer being interposed between the one or more droplets and the drive electrode; and write circuitry configured to write data to the array element. At least some of the array element circuits include measure circuitry configured to detect a pinhole defect in the insulator layer.

Abstract: Diagnostic and/or control methods, systems and apparatuses for variable frequency drives are disclosed. The variable frequency drive may be controlled by a controller that may conduct one or more tests or evaluations. The tests or evaluations may include determining whether a switching device in the variable frequency drive is open-circuited, short-circuited, or operating normally. The tests may include determining whether current provided at an inverter output of the variable frequency drive is within a predetermined range. An exemplary embodiment evaluates the drive for a short circuit condition, an open circuit condition, and a sensor error or failure condition, controls operation of the drive based upon these one or more evaluations, may abort operation of the drive based upon one or more evaluations, and may set a fault code indicative of the type of error encountered.

Abstract: Variable frequency drive active harmonic mitigation controls and diagnostics are disclosed. Exemplary controls and diagnostics include operating a variable frequency drive including converting an AC input line voltage to a DC voltage, generating a motor drive signal using the DC voltage, and driving an electric motor with the motor drive signal. A harmonic mitigation signal is provided to the drive configured to at least partially mitigate harmonics during the operation of the drive. The harmonic mitigation signal is inhibited based upon presence of an error condition associated with the drive input. The inhibiting is terminated based upon the absence of the error condition. A diagnostic fault condition based upon a number of occurrences of the error condition.

Abstract: An mucosal impedance (“MI”) device may include or utilize a retaining member sized to retain a tines structure including N tines, each provided with one or more impedance electrodes on each tine. The retaining member may mechanically deform the tines such that they fit inside it. The tines, made of spring like material, may be chosen, for example, for their elastic modulus and yield strength. The tines may be pre-conditioned with a shape that provides a spring tension force in the radial outward direction. When the retaining member or is retracted to release and expose the tines and impedance electrodes, the preconditioned shape and elasticity of the tines cause the tines to expand radially outward, providing an appropriate contact force of the impedance electrodes on the inner wall of the esophagus for a range of esophageal diameters.

Abstract: A system and method according to various embodiments can include a lighting fixture comprising a light source. A multilayer thin film coated reflector is applied to an outer light emitting surface of the lighting fixture. A top layer of the multilayer thin film coated reflector comprises a material including an anatase TiO crystal structure that exhibits antimicrobial properties when activated by the light source.