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| 20080218968 | WINGED PIEZO FAN - A winged piezo-fan to dissipate the heat generated by the devices in an electronic system is disclosed. The winged piezo-fan may comprise a piezo-ceramic element and two blades. The blades may be coupled to the piezo-ceramic element, which may change its physical dimension in response to receiving an alternating voltage signal. The blades coupled to the piezo-ceramic element may move upwards and downwards in a direction that is perpendicular to the axis drawn along the length dimension of the blades in response to the changes in the physical dimension of the piezo-ceramic element. The movement of the blades may cause a flapping movement, which may create turbulence in the surrounding air. The turbulence so created may create eddies, which may dissipate the heat generated by the devices positioned close to the winged piezo-fan. | 09-11-2008 |
| 20090080157 | METHOD, APPARATUS AND COMPUTER SYSTEM FOR AIR MOVER LID COOLING - Some embodiments of a method, apparatus and computer system are described for cooling a lid with an air mover. A computer system may include a frame and a display with a heat spreader and one or more air movers. In some embodiments, the one or more air movers may include a piezoelectric fan, a synthetic jet, a centrifugal fan, a coaxial fan, an axial fan, or a propeller fan. Moreover, in some embodiments, the air movers may be integrated into or formed as part of the heat spreader's structure. Other embodiments are described. | 03-26-2009 |
| 20090127701 | Thermal attach for electronic device cooling - Embodiments of thermal cooling devices and systems including dies and thermal attaches having surface features are described in this application. The thermal attach may have a surface feature, such as a pattern, to limit movement of a thermal interface material, such as thermal grease, from between the die and the thermal attachment. The restriction of movement of the thermal interface material may improve the thermal performance of cooling systems for electronic devices over many cycles as opposed to known cooling systems. Other embodiments are described. | 05-21-2009 |
| 20090190308 | METHOD AND APPARAUS FOR INVERTED VORTEX GENERATOR FOR ENHANCED COOLING - Some embodiments of a method, apparatus and computer system are described for inverted vortex generator enhanced cooling. In various embodiments an apparatus may comprise a first surface comprising at least one heated component, a second surface in proximity to the first surface, the second surface comprising a non-heated surface, and one or more inverted vortex generators attached to the non-heated surface, a portion of the one or more inverted vortex generators in proximity to and configured to dissipate heat from the at least one heated component. Other embodiments are described. | 07-30-2009 |
| 20090323276 | HIGH PERFORMANCE SPREADER FOR LID COOLING APPLICATIONS - Apparatuses, systems, and methods for a heat spreader plate and pulsating heat pipes to transfer heat sourced from one or more electronic components are described herein. Other embodiments may also be described and claimed. | 12-31-2009 |
| 20100167636 | ACTIVE VENTS FOR COOLING OF COMPUTING DEVICE - Apparatus and methods of cooling a computing device using active air vents. Embodiments include active air vents capable of dynamically changing the pattern of inlet airflow into the housing of the computing device and selectively directing airflow to cool heat-generating components on need basis. Embodiments include active vents coupled to an actuation mechanism to preferentially open and close the active air vents so that inlet airflow into the housing can be regulated based on the cooling requirement of heat-generating components in the housing. Embodiments also include a control module to determine the cooling requirement of the components of the device. | 07-01-2010 |
| 20120073789 | CHIMNEY-BASED COOLING MECHANISM FOR COMPUTING DEVICES - A mechanism is described for chimney-based cooling of computer components. A method of embodiments of the invention includes determining heat-emitting components of a computing device. The method further includes coupling a chimney to one or more of the heat-emitting components such that chimney effect of the chimney is used to guide air associated with a component in and out of the chimney. | 03-29-2012 |
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| 20100161245 | SYSTEM AND METHOD FOR ROTOR BLADE HEALTH MONITORING - A system for rotor blade health monitoring include time of arrival (TOA) sensors and a controller comprising a processor configured for obtaining TOA signals indicative of times of arrival of rotating rotor blades from the respective TOA sensors and for determining initial features from the TOA signals; and a feature level fuser configured for fusing the initial features received from the processor for use in evaluating health of the rotating rotor blades. | 06-24-2010 |
| 20110010108 | SYSTEM AND METHOD FOR MONITORING HEALTH OF AIRFOILS - A system is presented. The system includes a data acquisition system that generates time of arrival (TOA) data corresponding to a plurality of blades in a device, a central processing subsystem that determines features of each of the plurality of blades utilizing the TOA data, and evaluates the health of each of the plurality of blades based upon the determined features. | 01-13-2011 |
| 20110320137 | SYSTEM AND METHOD FOR MONITORING HEALTH OF AIRFOILS - A method for monitoring the health of one or more blades is presented. The method includes the steps of determining a delta TOA corresponding to each of the one or more blades based upon respective actual time of arrival (TOA) of the one or more blades, determining a normalized delta TOA corresponding to each of the one or more blades by removing effects of one or more operational data from the delta TOA, and determining a corrected delta TOA corresponding to each of the one or more blades by removing effects of reseating of the one or more blades from the normalized delta TOA. | 12-29-2011 |
| 20110320138 | SYSTEM AND METHOD FOR MONITORING HEALTH OF AIRFOILS - A method for monitoring the health of a plurality of blades is presented. The method includes determining delta TOAs corresponding to the plurality of blades, determining a standard deviation utilizing the delta TOAs corresponding to the plurality of blades, determining a delta sigma | 12-29-2011 |
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| 20110066859 | FLEXIBLE BROADCAST AUTHENTICATION IN RESOURCE-CONSTRAINED SYSTEMS: PROVIDING A TRADEOFF BETWEEN COMMUNICATION AND COMPUTATIONAL OVERHEADS - A method for authenticating a message that is transmitted wirelessly. The method includes providing a set of private key values that define a private key and performing a key pair generation process that provides a key pair including the private key and a public key, where performing the key pair generation process includes applying one or more hash functions to the private key values, where a succeeding hash function provides a hash of a previous hash function. The scheme uses a signature generation process that generates a message digest by applying a hash function on the message to be signed and then separates the message digest into two parts including signing bits and selection bits and using the private key to sign the message. A receiver verifies the authenticity of the received message using the public key and a signature verification algorithm. | 03-17-2011 |
| 20110208971 | Method of Using ECDSA with Winternitz One Time Signature - A method is provided of authenticating a digitally signed message. A chain of messages is generated. A Winternitz pair of keys is generated for each respective message. A sequence number is assigned to each of the messages. Each of the sequence numbers cooperatively identify an order of Winternitz verifiers assigned to each of the messages. A signature to a first message in the chain of messages is signed using a digital signature algorithm private key. Signatures to each of the following messages in the chain of messages are signed using both Winternitz private keys and digital signature algorithm private keys. The signed messages are broadcast from a sender to a receiver. The first signed broadcast message is authenticated at the receiver by verifying the digital signature algorithm signature. At least some of the following signed broadcast messages are authenticated at the receiver by verifying only the Winternitz signature. | 08-25-2011 |
| 20110238986 | ADAPTIVE CERTIFICATE DISTRIBUTION MECHANISM IN VEHICULAR NETWORKS USING VARIABLE INTER-CERTIFICATE REFRESH PERIOD - A method for improving the reliability and performance of Vehicle-to-Vehicle (V2V) networks where digital certificates are necessary for message authentication and some messages may be lost in transmission. The method uses a variable inter-certificate refresh period to optimize communications throughput based on network conditions such as node density and bandwidth saturation. In some network conditions, the inter-certificate refresh period may be increased, such that more certificate digests are sent between full digital certificates, to decrease average message size. In other network conditions, the inter-certificate refresh period may be decreased, to allow for more frequent message authentication by receiving nodes. Empirical data and an adaptive controller are used to select the refresh period which will provide the best performance based on network conditions. | 09-29-2011 |
| 20110238987 | ADAPTIVE CERTIFICATE DISTRIBUTION MECHANISM IN VEHICULAR NETWORKS USING FORWARD ERROR CORRECTING CODES - A method for improving the reliability and performance of Vehicle-to-Vehicle (V2V) networks where digital certificates are necessary for message authentication and some messages may be lost in transmission. The method uses Forward Error Correcting (FEC) codes to encode a digital certificate into multiple segments, and attaches one or more segment to each message transmitted. Nodes receiving the messages can reconstruct the certificate as long as they successfully receive a minimum number of the transmitted messages, where the minimum number is less than the total number of messages transmitted. This allows message authentication to continue uninterrupted, even in a network environment where some messages are lost in transmission. Two different types of FEC codes are described, and adaptive schemes are included to optimize message throughput based on such network conditions as node density. | 09-29-2011 |
| 20110238997 | EFFICIENT TECHNIQUE TO ACHIEVE NON-REPUDIATION AND RESILIENCE TO DoS ATTACKS IN WIRELESS NETWORKS - A computationally efficient message verification strategy that achieves non-repudiation and resilience to computational denial of service attacks in conjunction with a broadcast authentication protocol that authenticates messages using a combination of a digital signature and a TESLA MAC. When messages are received at a receiver, the verification strategy separates the messages into messages with the same sender identification. The strategy then determines whether the TESLA MAC authenticator is valid for each message and discards those messages that do not have a valid TESLA MAC. The strategy collects the messages that have a valid TESLA MAC for each sender identification and performs a batch verification process on the group of messages to determine if the messages in the group have a valid digital signature. This strategy verifies each message in the group of messages if the batch verification process shows that the group of messages has a valid digital signature. | 09-29-2011 |
| 20110258435 | Threat Mitigation in a Vehicle-to-Vehicle Communication Network - A method is provided for obtaining a certificate revocation list (CRL) for a vehicle in a vehicle-to-vehicle communication system. A portable security unit is provided to access secured operations for the vehicle. The portable security unit is linked to a device having access to a communication network. The communication network is in communication with a certificate authority for issuing an updated CRL. The updated CRL is downloaded from the certificate authority to the portable security unit. At a later time, when a user enters the vehicle, a communication link is established between the portable security unit and a vehicle processor unit. Mutual authentication is exchanged between the portable security unit and the vehicle processing unit. The updated CRL stored in the portable security unit is downloaded to a memory of the vehicle communication system in response to a successful mutual authentication. | 10-20-2011 |
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| 20100304084 | PROTECTIVE COATINGS WHICH PROVIDE EROSION RESISTANCE, AND RELATED ARTICLES AND METHODS - A coating composition is described, having a first coating layer which includes a metallic matrix in which metal carbide particles are dispersed; and a hard, dense second coating layer disposed over the first coating layer. The second coating layer is formed from a metal nitride-type material, and has an average roughness of less than about 80 micro-inches (Ra). Related articles and processes are also disclosed. | 12-02-2010 |
| 20100304181 | PROTECTIVE COATINGS WHICH PROVIDE EROSION RESISTANCE, AND RELATED ARTICLES AND METHODS - A coating composition is described, having a first coating layer which includes a nickel-chromium matrix in which metal carbide particles are dispersed; and a hard, dense second coating layer disposed over the first coating layer. The second coating layer is formed from a metal nitride-type material, and has an average roughness of less than about 80 micro-inches (Ra). Related articles and processes are also disclosed. | 12-02-2010 |
| 20110305873 | COMPOSITION AND METHOD FOR APPLYING A PROTECTIVE COATING - A coating composition includes a cermet material having metal carbide phase particles with an average size of less than 5 microns. The coating has an average surface roughness of less than approximately 5 microns. A system for applying a coating to a substrate includes a spray gun configured for use with a high velocity oxygen or high velocity air fuel system. The system further includes a cermet material supplied to the spray gun, wherein the cermet material includes at least approximately 34 percent by weight of a metal carbide phase having an average particle size of less than or equal to approximately 5 microns. The metal carbide phase is dispersed in a liquid selected from the group consisting of water, alcohol, an organic combustible liquid, or an organic incombustible liquid. | 12-15-2011 |
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| 20100191414 | INTEGRATED DIAGNOSIS AND PROGNOSIS SYSTEM AS PART OF THE CORPORATE VALUE CHAIN - An integrated diagnosis and prognosis system that collects vehicle information over the life of a vehicle and its development. The system provides the collected vehicle information to supplier management, product development management, service/dealership management, customer relations departments and production facilities, which use the information to take certain action for existing vehicles, fleets of vehicles or future vehicles to improve vehicle reliability and quality. | 07-29-2010 |
| 20100228423 | AGGREGATED INFORMATION FUSION FOR ENHANCED DIAGNOSTICS, PROGNOSTICS AND MAINTENANCE PRACTICES OF VEHICLES - A system and method for enhancing vehicle diagnostic and prognostic algorithms and improving vehicle maintenance practices. The method includes collecting data from vehicle components, sub-systems and systems, and storing the collected data in a database. The collected and stored data can be from multiple sources for similar vehicles or similar components and can include various types of trouble codes and labor codes as well as other information, such as operational data and physics of failure data, which are fused together. The method generates classes for different vehicle components, sub-systems and systems, and builds feature extractors for each class using data mining techniques of the data stored in the database. The method also generates classifiers that classify the features for each class. The feature extractors and feature classifiers are used to determine when a fault condition has occurred for a vehicle component, sub-system or system. | 09-09-2010 |
| 20110015967 | METHODOLOGY TO IDENTIFY EMERGING ISSUES BASED ON FUSED SEVERITY AND SENSITIVITY OF TEMPORAL TRENDS - A method for temporal trend detection employing non-parametric techniques. A set of discrete data is provided and a rank is assigned to the data based on both sensitivity and severity of the data. The method statistically ranks the ranked data by categorizing the data in bins defined by an average positional ranking that identifies the severity of the data for each sensitivity category provided by a bin. The method then clusters the statistically ranked data that has been categorized by average positional ranking so as to detect changes in the data. Clustering the statistically ranked data can include using a multi-nominal hypothesis testing procedure. The method then identifies trends in the data based on the detected changes. | 01-20-2011 |
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| 20090246529 | Particle with Bipolar Topospecific Characteristics and Process for Preparation Thereof - A particle with bipolar topospecific characteristics, whose precursor is an asymmetric 1:1 or 2:1:1 clay particle having alternating tetrahedral and octahedral sheets terminating with a tetrahedral sheet at one external surface plane and an octahedral sheet at another external surface plane, wherein a chemical group, having greater than 3 carbon atoms, and selected from an organyl or an organoheteryl chemical group, is attached to coordinating cations on the exterior side of one of the surface sheets. | 10-01-2009 |
| 20110021799 | PARTICLE WITH BIPOLAR TOPOSPECIFIC CHARACTERISTICS AND PROCESS FOR PREPARATION THEREOF - This invention relates to particles with bipolar topospecific characteristics and process of preparation thereof. It is an object of the present invention is to provide a particle with bipolar topospecific characteristics with two spatially distinct regions on its surface having non-identical surface characteristics. It has been found that particles prepared by topospecific treatment of an asymmetric clay precursor with an organyl or an organoheteryl group attached to coordinating cations of one of the surface sheets, provides a particle with bipolar topospecific characteristics with two spatially distinct regions on its surface having non-identical surface characteristics. | 01-27-2011 |
| 20120094883 | PERSONAL CLEANSING COMPOSITION - This invention relates to a liquid or soft-solid personal cleansing composition that utilises the detergency properties of new materials which are more efficient, more inexpensive and are an environmentally friendly alternative to conventional soaps or synthetic surfactants. It more particularly relates to a cleansing composition in liquid, gel or cream formats. The present invention provides for a personal cleansing composition comprising (i) 1 to 50% of treated clay particles; and (ii) a cosmetically acceptable base; wherein said treated clay particles are asymmetric 1:1 or 2:1:1 clay particles having alternating tetrahedral and octahedral sheets terminating with a tetrahedral sheet at one external surface plane and an octahedral sheet at another external surface plane, with a fatty acid of carbon chain length 10 to 22 attached to coordinating cation on one of said exterior surface planes. | 04-19-2012 |
