Pittsburgh, PA, United States

Carnegie Mellon University

www.cmu.edu
Pittsburgh, PA, United States

Carnegie Mellon University is a private research university in Pittsburgh, Pennsylvania.The university began as the Carnegie Technical Schools founded by Andrew Carnegie in 1900. In 1912, the school became the Carnegie Institute of Technology and began granting four-year degrees. In 1967, the Carnegie Institute of Technology merged with the Mellon Institute of Industrial Research to form Carnegie Mellon University. The university's 140-acre main campus is 3 miles from Downtown Pittsburgh and abuts the Carnegie Museums of Pittsburgh, the main branch of the Carnegie Library of Pittsburgh, the Carnegie Music Hall, Schenley Park, Phipps Conservatory and Botanical Gardens, the Pittsburgh Golf Club, and the campus of the University of Pittsburgh in the city's Oakland and Squirrel Hill neighborhoods, partially extending into Shadyside.Carnegie Mellon has seven colleges and independent schools: the Carnegie Institute of Technology , College of Fine Arts, Dietrich College of Humanities and Social science, Mellon College of Science, Tepper School of Business, H. John Heinz III College and the School of Computer Science. Carnegie Mellon fields 17 varsity athletic teams as part of the University Athletic Association conference of the NCAA Division III. Wikipedia.


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Patent
Carnegie Mellon University | Date: 2017-02-01

An articulated probe (10), comprising: a first mechanism (12, 14) comprised of a plurality of links; a second mechanism (12, 14) comprised of a plurality of links; a first wire extending through either said plurality of links of said first mechanism (12, 14) or said plurality of links of said second mechanism (12, 14) and a plurality of wires running through the other of said plurality of links of said first mechanism (12, 14) or said plurality of links of said second mechanism (12, 14); a device for producing command signals; and an electromechanical feeder (16) responsive to said command signals, said electromechanical feeder (16) capable of alternating each of said first mechanism (12) and second mechanism (14) between a limp mode and a rigid mode and comprising: a first motor for controlling the tension of said first wire or said plurality of wires, one of said first mechanism or said second mechanism being responsive to said first motor; and a second motor for controlling the tension of the other of said first wire or said plurality of wires, the other of said first mechanism or said second mechanism being responsive to said second motor and a method of moving the articulated probe.


An approach to modeling the nonlinear steady-state behavior of an electrical power grid in terms of equivalent circuits with currents and voltages as state variables is provided. Current and voltage conservation equations are formulated with circuit-theoretic algorithms that offer demonstrably superior robustness relative to traditional approaches. Generalized bus and line models are accommodated by the equivalent circuit-based approach, allowing for simulation of physical models not compatible with traditional methods. Unbalanced three-phase systems are handled without loss of generality. The provided methods allow for robust, efficient power flow simulation for contingency analysis, power system planning, power system design, power system control, component configurations and operating conditions, real-time scheduling, and optimization, among other applications.


Patent
Carnegie Mellon University | Date: 2017-02-10

Local swing leg control was developed that takes advantage of segment interactions to achieve robust leg placement under large disturbances while generating trajectories and joint torque patterns similar to those observed in human walking and running. The results suggest the identified control as a powerful alternative to existing swing leg controls in humanoid and rehabilitation robotics. Alternatively, a detailed neuromuscular model of the human swing leg was developed to embody the control with local muscle reflexes. The resulting reflex control robustly places the swing leg into a wide range of landing points observed in human walking and running, and it generates similar patterns of joint torques and muscle activations. The results suggest an alternative to existing swing leg controls in humanoid and rehabilitation robotics which does not require central processing.


Patent
Carnegie Mellon University and University of Pittsburgh | Date: 2017-01-24

Artificial heart valve structures and methods of their fabrication are disclosed. The heart valve structures may be fabricated from a biocompatible polymer and include one or more heart valve leaflet structures incorporated within a conduit. The valve structures may incorporate one or more conduit sinuses, as well as a gap between the lower margin of the valve leaflets and the interior of the conduit. In addition, the valve structures may include one or more valve sinuses created in a space between the valve leaflets and the conduit inner surface. Computational fluid dynamics and mechanical modeling may be used to design the valve leaflets with optimal characteristics. A heart valve structure may also incorporate a biodegradable component to which cells may adhere The incorporated cells may arise from patient cells migrating to the biodegradable component, or the component may be pre-seeded with cells prior to implantation in a patient.


In some aspects, computer-implemented methods of identifying patterns in time-series social-media data. In an embodiment, the method includes applying a deep-learning methodology to the time-series social-media data at a plurality of temporal resolutions to identify patterns that may exist at and across ones of the temporal resolutions. A particular deep-learning methodology that can be used is a recursive convolutional Bayesian model (RCBM) utilizing a special convolutional operator. In some aspects, computer-implemented methods of engineering outcome-dynamics of a dynamic system. In an embodiment, the method includes training a generative model using one or more sets of time-series data and solving an optimization problem composed of a likelihood function of the generative model and a score function reflecting a utility of the dynamic system. A result of the solution is an influence indicator corresponding to intervention dynamics that can be applied to the dynamic system to influence outcome dynamics of the system.


Patent
Carnegie Mellon University | Date: 2017-01-27

A system for controlling the movement of a steerable multi-linked device may include a steerable multi-linked device, a feeder mechanism releasably connected to the steerable multi-linked device and a controller device. The steerable multi-linked device may include a first link, a plurality of intermediate links, and a second link movably coupled to a second one of the intermediate links. A first one of the intermediate links may be movably coupled to the first link. The controller device may be configured to control movement of the multi-linked device via the feeder mechanism.


Patent
Carnegie Mellon University | Date: 2017-01-30

Provided herein are methods of suppressing viral nucleic acid, e.g. double-stranded (ds) DNA, genome release from or packaging of viruses having their nucleic acid genome packaged under stress in their capsid, and compositions useful for that purpose. The methods alter the ionic environment of the nucleic acid within the capsid and thereby prevent release of, and/or interfere with packaging of the viral genome.


Patent
University of Pittsburgh and Carnegie Mellon University | Date: 2017-04-10

A method of aiding the diagnosis of otitis media in a patient includes obtaining image data in a processor apparatus of a computing device, the image data being associated with at least one electronic image of a tympanic membrane of the patient, calculating, a plurality of image features, each image feature being calculated based on at least a portion of the image data, classifying the at least one electronic image as a particular type of otitis media using the plurality of image features, and outputting an indication of the particular type of otitis media. Also, a system for implementing such a method that includes an output device and a computing device.


Disclosed herein is a composite comprising a conductive elastomer and an isolating elastomer. When a current is passed through the conductive elastomer, its tensile modulus decreases as the elastomer heats from internal Joule heating, changing the rigidity of the composite. When the current is no longer present, the elastomer cools and the rigidity of the composite returns to its original state.


Patent
Carnegie Mellon University | Date: 2017-02-02

Disclosed herein is a composite comprising an elastomer with an embedded network of liquid metal inclusions. The composite retains similar flexibility to that of an elastomer but exhibits electrical and thermal properties that differ from the properties of a homogeneous elastomer. The composite has applications for wearable devices and other soft matter electronics, among others.

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