Abstract: A manufacturing system for producing polyolefin includes a polymerization reactor, a flash chamber, and a purge column. In certain embodiments, the purge column may receive a solids stream directly from the flash chamber. Further, the purge column may function as a feed tank for an extruder within an extrusion/loadout system. According to certain embodiments, the manufacturing system may be configured to consume less than 445 kilowatt-hours of energy per metric ton of polyolefin produced based on consumption of electricity, steam, and fuel gas.

Abstract: A composition comprising PAA nanoparticles containing a post loaded tetrapyrollic photosensitizer and an imaging agent and methods for making and using same.

Abstract: A wind turbine blade includes a root portion, a tip and a body extending between the root portion and the tip. The body has a pressure side and a suction side. The body further has at least one winglet. Each winglet has a spanwise extension towards the root portion of the rotor blade and that ends at the tip to form a winglet having a substantially C-shaped or substantially open P-shaped geometry.

Abstract: A beamsplitter that includes a first prism including an input face, an output face and an oblique face and a second prism including an output face and an oblique face, the oblique face of the second prism being coupled to the oblique face of the first prism. A polarizing coating is sandwiched between the oblique face of the first prism and the oblique face of the second prism, and a linear polarizer coupled to at least one of the output face of the first prism and the output face of the second prism.

Abstract: An eyepiece for a head mounted display includes a display module, end reflector, and viewing region. The end reflector is disposed at an opposite end of the eyepiece from the display module to reflect the display light back from a forward propagation path to a reverse propagation path. The viewing region is disposed between the display module and the end reflector and includes a partially reflective surface, that passes the display light traveling along the forward propagation path and redirects the display light traveling along the reverse propagation path out of an eye-ward side of the eyepiece along an emission path. The partially reflective surface has a compound folding angle such that the emission path of the display light emitted from the eyepiece is folded along two axes relative to the reverse propagation path between the concave end reflector and the partially reflective surface.

Abstract: A composition comprising PAA nanoparticles containing a post loaded tetrapyrollic photosensitizer and a postloaded imaging agent and methods for making and using same.

Abstract: PAA nanoparticles containing at least one tetrapyrrolic photosensitizer and at least one PET imaging agent.

Abstract: A PAA nanoparticle containing a covalently linked fluorescent dye and a post-loaded tetrapyrrolic photosensitizer.

Abstract: A wind turbine blade includes a root region. A first extension (LEX) is attached to the leading edge side of the root region while a trailing edge strake (TES) is attached to the trailing edge side of the root region. The LEX and TES each include an outer profile that becomes more pronounced relative to their respective locations in the root region as the root region of the wind turbine blade morphs from a substantially cylindrical shape to a substantially airfoil shape. The LEX provides both optimal angle of attack and lift generation in the root region, while the TES mitigates airflow separation and enhances airfoil lift in the root region.

Abstract: An illumination module includes a light source to output lamp light and a mixing light guide having a substantially rectangular cross-section. The mixing light guide includes a spatial homogenization section and an emission section. The spatial homogenization section includes a first end coupled to receive the lamp light having a first cross-section profile from the light source and a second end to deliver the lamp light with a second cross-section profile substantially conforming to the substantially rectangular cross-section of the mixing light guide. The emission section is adjacent to the second end. The emission section includes an emission surface through which the lamp light is emitted with a substantially uniform intensity profile. The emission surface faces a different direction than an input surface of the first end through which the lamp light is received into the mixing light guide.

Abstract: A method including receiving a work flow for the ingestion, transformation, and distribution of content, wherein the work flow includes one or more work unit tasks; retrieving work unit task information pertaining to the one or more work unit tasks; identifying one or more network elements to execute one of the one or more work unit tasks based on the work unit task information; translating the work unit task information from a format used by one or more devices to another format that is used by the one or more network elements based on one of an object adapter pattern or a class adapter pattern; and send the translated work unit task information to the one or more network elements.

Abstract: A fluid dynamic structure includes a surface and a microstructure mounted on the surface. The microstructure is defined by a plurality of peaks and valleys (i.e., riblets) and includes a transition region in which each peak and valley changes from a first profile to a second profile along a chord length of the structure. The peaks and/or valleys may have a variable dimension along the length of the microstructure. The peaks and valleys can be non-linear along the chord length and have a smooth transition from the first profile to the second profile. The different profiles of the microstructure are optimized to reduce noise generated by turbulent fluid flow across the structure.

Abstract: An airfoil of varying span-wise thickness comprising a suction side and a pressure side coupled together at a leading edge and a trailing edge, with the trailing edge comprising a plurality of spaced-apart wave-shaped projections. Exemplary embodiments provide airfoil geometry and/or trailing edge features to influence downstream wake flow. Methods of fabricating an airfoil for improved wake flow are also provided.

Abstract: Methods for controlling polyolefin reactor temperature. In one embodiment, a simulation model is constructed for improving control of polymerization temperature in a polyethylene loop slurry reactor. The model is used to design the reactor coolant system to capacity and to improve tuning of system controllers, such as the reactor temperature controller and coolant temperature controller. A coolant control valve is sized having a bilinear flow characteristic that improves Cv reproducibility at low coolant flow rates and thus improves reactor temperature control.

Abstract: An eyepiece includes an eyepiece frame, an in-coupling polarization beam splitter (“PBS”), an end reflector, and an out-coupling PBS. The eyepiece frame defines an air cavity and includes an illumination region for receiving computer generated image (“CGI”) light into the eyepiece frame and a viewing region to be aligned with an eye of a user. The in-coupling PBS is supported within the eyepiece frame at the illumination region to re-direct the CGI light to a forward propagation path extending along the air cavity towards the viewing region. The end reflector is disposed to reflect the CGI light back along a reverse propagation path within the eyepiece frame. The out-coupling PBS is supported at the viewing region to pass the CGI light traveling along the forward propagation path and to redirect the CGI light traveling along the reverse propagation path out of an eye-ward side of the eyepiece frame.

Abstract: A lens for a flashlight or other lighting unit provides for focusing light from a source, such as an LED, to provide a light beam adjustable between a spot beam and a wide beam. The lens includes a lens body with a front face, a rear LED-receiving well, and a side surface extending between the front face and the rear well. The front face includes a central surface surrounded by an annular concave surface. The rear well includes a space for the LED to be adjusted in position. The rear well space is defined by a concavely-curved sidewall and a concavely-curved base. The concave curvature of the sidewall and base may be Bezier curves.

Abstract: Methods and apparatus for a heat spreader including a vapor chamber, a fluid in the vapor chamber, a wick disposed in the vapor chamber, the wick comprising a metal wick structure, and a coating on wick comprising carbon nanotubes for promoting incipient boiling of the fluid.

Abstract: A carbon nanotube (CNT) through silicon via (TSV) for three-dimensional (3D) substrate interconnects is described. TSV technologies provide for high performance and high density 3D packages. The CNT-based TSVs provide for integration of analog, RF and mixed-signal integrated circuits. CNT-based TSV provides superior electrical characteristics as compared to conventional TVs filled with conductive metals.

Abstract: A manufacturing system for producing polyolefin includes a polymerization reactor, a flash chamber, and a purge column. In certain embodiments, the purge column may receive a solids stream directly from the flash chamber. Further, the purge column may function as a feed tank for an extruder within an extrusion/loadout system. According to certain embodiments, the manufacturing system may be configured to consume less than 445 kilowatt-hours of energy per metric ton of polyolefin produced based on consumption of electricity, steam, and fuel gas.

Abstract: An air distribution system for manipulating a boundary layer of air across a wind turbine rotor blade. The wind turbine rotor blade includes at least one sidewall that defines a cavity therein. The sidewall extends between a leading edge and an axially-spaced trailing edge, and defines a chordwise axis between the leading edge and the trailing edge. The air distribution system includes a plurality of bleed flow assemblies that are positioned within the rotor blade and are configured to discharge air into the boundary layer to reduce a separation of the boundary layer from the rotor blade. Each bleed flow assembly of the plurality of bleed flow assemblies includes a bleed flow conduit that is coupled to an inner surface of the sidewall and is oriented with respect to the chordwise axis between the leading edge and the trailing edge. The bleed flow conduit is configured to channel air through the rotor blade.