| Patent application number | Description | Published |
|---|
| 20090095446 | SYSTEM, METHOD, AND APPARATUS FOR PULSED-JET-ENHANCED HEAT EXCHANGER - A pulsed-jet active flowfield control actuation system enhances the rate of heat transfer and heat removal in a heat exchanger for better management of thermal loads. The pulsed jet actuators impart an unsteady component of velocity to the working fluid of the heat exchanger. This design increases the convective heat transfer, and avoids increases in heat exchanger volume and weight for a given performance value. | 04-16-2009 |
| 20090308980 | Method and system for fully fixed vehicle control surfaces - A fully fixed, non-articulating geometry vehicle that includes a number of virtual control surfaces operable to replicate a mechanical control surface's functionality. These virtual control surfaces further include a number of flow control devices on the non-articulating vehicle surface. The plurality of flow control surfaces is operable to induce secondary flow structure(s) within a boundary layer of a fluid flow over the non-articulating vehicle surface. A virtual control surface controller is operable to dynamically adjust a frequency and amplitude of the secondary flow structure(s) in order to reposition the virtual control surface. A vehicle control and stability system communicatively coupled to the plurality of virtual control surfaces is operable to direct positioning of the plurality of virtual control surfaces in response to vehicle control commands. | 12-17-2009 |
| 20100003129 | Flow control redistribution to mitigate high cycle fatigue - The present invention provides a method operable to improve pressure recovery and/or distortion within engine inlet. This method involves providing a first fluid flow to primary jet vortex generator(s) operable to inject fluid at a first injection rate into a boundary layer of a primary fluid flow within the inlet. A secondary fluid flow is injected by secondary jet vortex generator(s) at a second injection rate into the boundary layer of the primary fluid flow. The fluid injected at the first injection rate and second injection rate is operable to induce secondary flow structures within the boundary layer. These secondary close structures are then operable to improve or manipulate the pressure recovery of the inlet. At specific engine conditions, this method may redistribute the ratio of the first injection rate and second injection rate in order to improve pressure recovery and/or distortion of the inlet when the particular engine conditions. Such engine conditions may be associated with a natural blade frequency of the engine at a particular speed. Embodiments of the invention allow blade vibration problems associated with engine operation at particular speeds to be solved without adding damping or increasing blade strength to change the natural frequency of the blades, thereby reducing weight and improving engine performance. | 01-07-2010 |
| 20100084514 | System and method to control flowfield vortices with micro-jet arrays - The present invention provides a system and method for actively manipulating and controlling aerodynamic or hydrodynamic flow field vortices within a fluid flow over a surface using micro-jet arrays. The system and method for actively manipulating and controlling the inception point, size and trajectory of flow field vortices within the fluid flow places micro-jet arrays on surfaces bounding the fluid flow. These micro-jet arrays are then actively manipulated to control the flow behavior of the ducted fluid flow, influence the inception point and trajectory of flow field vortices within the fluid flow, and reduce flow separation within the primary fluid flow. | 04-08-2010 |
| 20100270433 | Method and System For Global Flow Field Management Using Distributed, Surface-Embedded, Nano-Scale Boundary Layer Actuation - Systems and methods to provide distributed flow control actuation to manage the behavior of a global flow field, are provided. An example of a system can include an aerodynamic structure having an outer surface, and an array of a plurality of effectors connected to the outer surface of the aerodynamic structure to be in fluid contact with a flowing fluid when operationally flowing, to induce controlled, globally distributed disturbances at a viscous wall sublayer of a turbulent boundary layer of the flowing fluid when operationally flowing and to manipulate fluid behavior of the flowing fluid to thereby substantially reduce pressure loss associated with incipient separation of the fluid flow from portions of the aerodynamic structure. | 10-28-2010 |
| 20110089835 | SYSTEMS AND METHODS FOR PLASMA JETS - A plasma jet system includes a housing with a single opening. A plasma generator is coupled to ionize a fluid in the housing. An electromagnetic accelerator is coupled to generate an electric field that accelerates ionized fluid in the housing toward the opening. A controller can modulate the frequency of the electric field to cause the ionized fluid to form a plasma vortex flow through the opening. A magnetic field is applied normal to the direction of the plasma vortex flow to mitigate the momentum of the electrons. The electrons slowed by the magnetic field can be collected and conducted to a location where they are re-inserted into the plasma vortex flow to maintain charge neutrality. | 04-21-2011 |
| 20110095135 | PRISMATIC-SHAPED VORTEX GENERATORS - A prismatic vortex generator for attenuating flow separation which occurs during supersonic flow of air over structure such as an aircraft airfoil, its fuselage, surfaces forming a part of a jet engine inlet, or similar surfaces subjected to supersonic airflow. A series of prismatic vortex generators are provided, each of which is configured to generate a vortex which attenuates flow separation and weight drag resulting from the supersonic airflow. Each prismatic vortex generator has a prismatic shape with a base, leading and trailing ends, and sidewalls that incline toward and join each other to form an apex. The leading end of each prismatic vortex generators is inclined away from the direction of flow. | 04-28-2011 |
| 20120079803 | Exhaust plume heat effect reducing method and apparatus - An apparatus for reducing heating effects of an exhaust plume of a jet engine on an impinged surface includes fluid injectors disposed adjacent and aimed into an exhaust plume zone that's to be occupied by an exhaust plume when the engine is running. A flow generator transmits fluid flow into such an exhaust plume through the injectors. Each injector emits fluid in at least two divergent directions to increase the cross-sectional area of the exhaust plume by forming fluidic lobes in the exhaust plume. | 04-05-2012 |
| 20120222768 | System for Global Flow Field Management Using Distributed, Surface-Embedded, Nano-Scale Boundary Layer Actuation - Systems to provide distributed flow control actuation to manage the behavior of a global flow field, are provided. An example of a system can include an aerodynamic structure having an outer surface, and an array of a plurality of nano-scale effectors connected to the outer surface of the aerodynamic structure to be in fluid contact with a flowing fluid when operationally flowing, to induce controlled, globally distributed disturbances at a viscous wall sublayer of a turbulent boundary layer of the flowing fluid when operationally flowing and to manipulate fluid behavior of the flowing fluid to thereby substantially reduce pressure loss associated with incipient separation of the fluid flow from portions of the aerodynamic structure. | 09-06-2012 |
| Patent application number | Description | Published |
|---|
| 20090278726 | Method and Apparatus for Representing and Classifying Microwave Back-Projection Radar Signals - A moving object is classified by transmitting, by a linear array of transmit antenna elements, a microwave into a surveillance area. A scattered microwave backprojected from a moving object is received by a linear array of receive antenna elements. Features are extracted from the scattered microwave related to a spiral evolution of the scattered microwave. The moving object is then classified as one of a set of possible classes according to the extracted features, and an alarm signal can be generated indicating the selected class. | 11-12-2009 |
| 20100083095 | Method for Extracting Data from Web Pages - Embodiments of the invention describe a computer-implemented method for extracting data from web pages. During a learning stage, the embodiments receive a template web page represented by a template Document Object Model (DOM) and select a record node, which is a root node of a sub-tree of the template DOM that contains data to be extracted. After that, a record node sub-tree and data field sub-paths are stored in a memory, wherein the record node is a root node of the record node sub-tree, and the data field sub-paths are relative paths of the template DOM from the record node to data field nodes. During the extraction stage, a web page represented by a DOM-tree is received and a matched sub-tree of the DOM-tree according to a structure of the record node sub-tree is identified. Next, data from the matched sub-tree according to the data field sub-paths are extracted. | 04-01-2010 |
| 20100094783 | Method and System for Classifying Data in System with Limited Memory - Embodiments of the invention describe a method for classifying data in a system with limited memory. The method applies exemplar learning (EL) procedures to a training data set to produce an exemplar data set adapted to the size of the memory. The EL procedure is selected form a group consisting of an entropy based exemplar learning (EBEL) procedure and an advanced broadband enabled learning (ABEL) procedure. The exemplar data set is used to classify acquired by the system data. | 04-15-2010 |
| 20110016070 | Method for Predicting Future Environmental Conditions - An average environmental condition for a specified target date and time is determined by indexing a database of time series data to retrieve the environment condition for each day and time where an orbital position of the earth with respect to the sun is nearest to the orbital position of the earth on the target date and time. The average environmental condition is then determined from the retrieved environmental conditions. | 01-20-2011 |
| 20110161258 | Method for Converting Dynamical Systems with Continuous States into Markov Decision Processes with Discrete States - A continuous dynamical system is converted to a Markov decision process (MDP) with discrete states. A predetermined number of continuous states of the continuous system is selected, wherein each continuous state corresponds to one discrete state of the MDP. Delaunay triangulation is applied to the continuous states to produce a set of triangles, wherein vertices of each triangle represent the continuous states. For each discrete state, a next discrete state y=f(x, a) is determined, wherein x represents the continuous state corresponding to the discrete state, a is a control action, and f is a non-linear transition function for the continuous. A particular triangle containing the next discrete state y is identified, and the next discrete state y is expressed as probabilities of transitioning to the discrete states corresponding to the continuous states x represented by the vertices of the particular triangle. | 06-30-2011 |
| 20120310608 | Method for Scheduling Power Generators Based on Optimal Configurations and Approximate Dynamic Programming - A unit commitment problem is solved for a set of generators with a set of configurations having a set of 2 | 12-06-2012 |
| Patent application number | Description | Published |
|---|
| 20080308361 | Method and System for Determining Instantaneous Peak Power Consumption in Elevator Banks - A method and system determine peak power consumption over time by a bank of elevator for servicing a set of passenger hall calls and delivery requests, and selecting elevator schedules that keep peak power consumption below a predetermined threshold. For each car in response to receiving a hall call, a set of all possible paths to service all hall calls assigned to the car are determined, in which each path includes a set of all possible segments. A peak power consumption for each possible segment is also determined. The peak power consumptions for the set of all possible segments for each time instant are added to determine a total peak power consumption for each time instant, and a particular path is selected as a schedule to operate the bank of elevator cars, if the total peak power consumption for any instant in time while operating according to the selected schedule is below a predetermined threshold. | 12-18-2008 |
| 20090094074 | Method for Constructing Business Process Models from Task Execution Traces - A business process is modeled by determining, for each possible pair of tasks in a trace of executions of N tasks corresponding to a business process, whether the tasks in each pair have an identical relation condition with every other task in the trace. A pair of tasks is identified as child task nodes of an associated parent relation node if the identical relation condition is true. A renderable workflow tree is constructed from all identified child task of the associated corresponding parent relation, nodes. | 04-09-2009 |
| 20090177443 | METHOD AND SYSTEM FOR DETECTING CHANGES IN SENSOR SAMPLE STREAMS - A method detects a change in a stream of samples acquired by a sensor. A stream of samples acquired by a sensor over time is stored sequentially in a buffer in which an oldest sample is discarded and a newest sample is stored when the buffer is full such that the buffer forms a window of samples sliding forward in time. For each new sample, the buffer is partitioned into all possible pairs of contiguous sub-windows of samples including a first sub-window and a second sub-window such that the newest sample is stored in the second sub-window of the pair. A difference is determined between the first and second sub-window of each pair of the contiguous sub-windows of samples, and a maximum difference is assigned as a merit score. A change in the stream of samples is signaled if the merit score is greater than a predetermine threshold. The change can be abrupt or gradual. | 07-09-2009 |
| Patent application number | Description | Published |
|---|
| 20080301546 | Systems and methods for rendering media - Methods and systems are provided for maintaining the aspect ratio of an image in the form of a graphic element or a photograph on a printed product in a theme collage. The aspect ratio of each image in the theme collage is maintained independent of any aspect ratio or resolution of the theme collage. Other methods provide for maintaining the resolution of a graphic element on a printed product in a theme collage using any desired combination of bitmap or vector based graphic data and alpha data when rendering the graphic element. An exemplary system may include one or more modules for determining the size of an image on a page while maintaining an aspect ratio of the image, displaying the image, receiving graphic data for the image, receiving alpha-transparency data for the image, and changing the image appearance according to a rendering parameter. | 12-04-2008 |
| 20080304105 | Data management for media production - Systems and methods for authoring, ordering and producing various products are described. A method of ordering a product comprises: receiving a request for a product type, identifying product specification data associated with the product type, presenting one or more options for products characterized by the product specification data, receiving a request for one or more of the presented options, and transmitting product order data associated with the request to a server. A method of producing an ordered product comprises: receiving product order data associated with the authored product, identifying print output data associated with the authored product, generating one or more tables of contents, each table of contents defining one or more components of the authored product, and printing the product components defined by the tables of contents. | 12-11-2008 |
| 20110072376 | METHOD AND SYSTEM FOR DYNAMICALLY PLACING GRAPHIC ELEMENTS INTO LAYOUTS - Techniques are described for dynamically placing graphical elements into theme layouts on a graphical user interface. A rendering engine reads a set of theme metadata and graphics metadata. The theme metadata defines a layout of the page and the regions into which the graphic elements will be placed. The theme metadata can further include tags to define categories or conceptual purposes for the regions and design changes that can be applied to graphics in that region. The graphics metadata defines a list of graphic files to be included in the layout, tags to define a category or conceptual purpose for each element and optional tags to override the design changes that are indicated in the theme metadata. The rendering engine combines and matches the theme metadata to the graphics metadata and places the graphic elements into the theme layout according to the matching. | 03-24-2011 |
