Worcester Polytechnic Institute is a private research university in Worcester, Massachusetts, focusing on the instruction and research of technical arts and applied science.Founded in 1865 in Worcester, WPI was one of the United States' first engineering and technology universities and now has 14 academic departments with over 50 undergraduate and graduate degree programs in science, engineering, technology, management, the social science, and the humanities and arts, leading to bachelor's, master's and PhD degrees. WPI's faculty works with students in a number of research areas, including biotechnology, fuel cells, information security, materials processing, and nanotechnology. Wikipedia.
Worcester Polytechnic Institute | Date: 2016-08-12
Compositions and methods for coating medical devices are provided. A coating composition may comprise a tether covalently attached to an anti-microbial peptide, the tether having sufficient length to permit the anti-microbial peptide to at least partially penetrate a membrane of a bacteria, upon contact of the anti-microbial peptide with the bacteria.
Worcester Polytechnic Institute | Date: 2016-08-10
A self-healing coating for reinforcing steel embedded in concrete includes emulsion derived microcapsules having a healing agent and adapted for dispersion through a liquid coating medium for application on a structural steel surface to form a coating for corrosion prevention. The microcapsule particles are dispersed in the coating medium for being disposed on the surface and are configured to rupture and release the healing agent onto the surface in response to a compromise of the coating, such as being dropped or dragged on a construction site. The self-healing agent, such as Tung oil, complements the protective properties of the coating medium by flowing into regions where the coating medium has been scraped off, flaked off, or otherwise undergone compromise. Alternatively, post-installation corrosive influences, such as rust and oxidation, can also cause rupture of the particles to abate corrosion in the concrete-encased steel members.
Worcester Polytechnic Institute | Date: 2016-09-29
An electrohydrodynamic (EHD) pump increases refrigerant flow rate and the resulting pressure in a vapor compression based cooling system for permitting reduced compressor sizes and power demands. The EHD pump disposes electrodes in a liquid path of the refrigerant flow, and increases fluid flow and resulting pressure by an induced liquid flow between a pair of asymmetric electrodes. Voltage applied to these electrodes results in a conduction pumping mechanism associated with heterocharge layers in the vicinity of the electrodes based on disassociation of a neutral electrolyte species in the refrigerant fluid and recombination of the generated ions. The induced flow draws the liquid due to a net fluid flow toward one of the electrodes based on the asymmetry of the electrode pair. Electrodes are disposed on an inner surface of a refrigerant vessel, in communication with an annular liquid film that forms around the inner circumference in two-phase fluid systems.
Worcester Polytechnic Institute | Date: 2016-09-09
The present disclosure provides devices and methods for cleaning up or burning spills of burnable materials in situ. In some embodiments, a system for burning a burnable material comprises a base having a first side configured for placement on a surface with a burnable material and a second side; and a plurality heat conducting members extending from the second side of the base.
Worcester Polytechnic Institute | Date: 2016-12-22
An assessment engine includes a definition of inquiry skills being assessed. Assessment models are used to infer skill demonstration as one or more students engage in inquiry within computerized simulations and/or microworlds. A pedagogical agent and/or help system provides real-time feedback to one or more students based on the assessment model outputs, and/or based on additional models that track one or more students developing proficiency across inquiry tasks over time. A pedagogical agent and/or help system for science inquiry tutoring responds in real-time on the basis of knowledge-engineered and data-mined assessment and/or tracking models.
Worcester Polytechnic Institute | Date: 2016-10-06
A parallel robotic manipulator for generating 3 dimensional structures includes a set of redeployable towers adapted to transport one or more cables, and at least one drive source operable to draw or traverse the cables across a rendering area. An end-effector suspended from the cables is operable to deposit extrudate onto the rendering area, and a nozzle in the end-effector is configured to selectively deposit the extrudate at predefined locations based on the position of the cable. A control unit has control logic for directing the drive source, in which the cables are responsive to the drive source for disposing the end-effector either along the cables or drawn and extended from the towers. An extrudate reservoir and a pump in fluidic communication with the reservoir allows the pump to force the extrudate for deposition at the predefined location responsive to the control logic.
Case Western Reserve University and Worcester Polytechnic Institute | Date: 2017-01-11
A modular engineered tissue construct includes a plurality of fused self-assembled, scaffold-free, high-density cell aggregates. At least one cell aggregate includes a plurality of cells and a plurality of biocompatible and biodegradable nanoparticles and/or microparticles that are incorporated within the cell aggregates. The nanoparticles and/or microparticles acting as a bulking agent within the cell aggregate to increase the cell aggregate size and/or thickness and improve the mechanical properties of the cell aggregate.
Worcester Polytechnic Institute | Date: 2016-12-16
A service provider device includes a controller having a memory and a processor. The controller is configured to receive a device access request from the client device via a residential network, the server provider device being located external to the residential network and detect a communication type identifier associated with the device access request. The controller is configured to establish a secure communication channel between the client device and a middlebox associated with the detected communication type identifier and provide communication between the client device and the server device via the secure communication channel between the client device.
Worcester Polytechnic Institute | Date: 2016-12-15
Device, and methods of using or making the device, for engineering cells in vitro are disclosed. In some aspects, a cell culture device comprises at least one glass or polymer surface configured for incubating cells in a culture medium; a charged molecule electrostatically bound to the surface; and a polyelectrolyte multilayer (PEM) electrostatically bound to the charged molecule, the PEM comprising one or more bi-layers of oppositely charged polyelectrolytes, and the PEM having a sufficient thickness to permit release of the charged molecule into the culture medium in a controlled released manner.
Landau S.,Worcester Polytechnic Institute
Science | Year: 2015
Massive data collection by businesses and governments calls into question traditional methods for protecting privacy, underpinned by two core principles: (i) notice, that there should be no data collection system whose existence is secret, and (ii) consent, that data collected for one purpose not be used for another without user permission. But notice, designated as a fundamental privacy principle in a different era, makes little sense in situations where collection consists of lots and lots of small amounts of information, whereas consent is no longer realistic, given the complexity and number of decisions that must be made. Thus, efforts to protect privacy by controlling use of data are gaining more attention. I discuss relevant technology, policy, and law, as well as some examples that can illuminate the way.