Abstract: Methods of producing graphene, reaction chambers for forming graphene, and graphene sheets formed from the methods are described herein. A method may include adding at least one metal catalyst in a reaction chamber, adding at least one hydrocarbon gas in the reaction chamber, allowing the at least one metal catalyst and the at least one hydrocarbon gas to contact one another to produce a product, and dehydrogenating the product to produce the graphene.

Abstract: Technologies are generally described for generating a communication request. An example method may include retrieving an image from a memory. The method may also include sending the image to a first device operated by a first user and a second device operated by a second user. The method may also include receiving a first indication of a first selection region from the first device. The method may also include receiving a second indication of a second selection region from the second device. The method may also include analyzing the first and second selection regions. The method may also include selecting the first and second user based on the analysis. The method may also include generating the communication request to request communication between the first user and the second user. The method may also include sending the communication request to at least one of the first device or the second device.

Abstract: Disclosed herein are methods and systems to isolate nitrogen from a mixture of gases. In an embodiment, a method of isolating nitrogen from a gaseous mixture involves contacting the gaseous mixture with a superparamagnetic catalyst to form a reaction mixture, and exposing the reaction mixture to a fluctuating magnetic field at ambient conditions.

Abstract: A reinforcing element and a method of forming the reinforcing element are generally described. The reinforcing element may be used in reinforcing a cementitious material and may comprise a settable material and a tension-resistant material that extends for a length of the element. To form the reinforcing element the settable material and tension-resistant material may be disposed together such that the settable and tension-resistant materials generally take the form of the reinforcing element. The settable material may then be cured.

Abstract: Technologies are generally described for rendering a character for games. In some examples, a method performed under control of a game server may include calculating a level of detail (LOD) for a first character positioned in a same virtual game space as a second character, based at least in part on a calculated degree of closeness between the first character and the second character; and controlling a display definition of the first character based at least in part on the calculated LOD.

Abstract: Examples include autonomously authenticating a financial transaction, on behalf of the user, without interacting with the user, via wireless communication link. In various embodiments, the user's cellular phone may be configured to process a message that provides at least partial service context and autonomously authenticate the financial transaction.

Abstract: Technologies are generally described for a beacon implementation scheme. In some example, a method performed under control of a server may include receiving, from a plurality of mobile devices over a period of time, location information that identifies a point of interest; determining a number of times that location information identifying the point of interest has been received from one or more of the plurality of mobile devices; and implementing a beacon based on the number of times that location information identifying the point of interest has been received.

Abstract: When the intensity of visible light is properly modulated, the difference between the modulated visible light and the original visible light is not noticeable to human eyes but detectable to electronic devices. Thus, the modulated visible light may be utilized to form patterns that are only recognizable to electronic devices but not to human eyes.

Abstract: A method performed under control of a mobile device may include receiving at least one probe response from at least one access point; determining whether a number of the at least one Wi-Fi access point satisfies a predetermined condition; adjusting a signal transmission power of a probe request, when the determining indicates that the number of the at least one Wi-Fi access point does not satisfy the predetermined condition; and transmitting the probe request with the adjusted signal transmission power.

Abstract: Technologies are generally described for spectroscopic determination of one or more optical properties of a gemstone. An imaging device may include one or more light sources configured to illuminate one or more portions of the gemstone, and one or more photo detectors configured to detect reflected light from the portions of the gemstone in response to the illumination. An analysis module may be communicatively coupled to the imaging device, and configured to analyze the reflected light to determine the optical properties of the portions of the gemstone. The optical properties may include at least one of a clarity, color, fluorescence, birefringence, dichroism, and brilliance of the portions of the gemstone. In some examples, an optical fingerprint of the gemstone may be created based on one or more determined optical characteristics of the portions of the gemstone, where the optical fingerprint may uniquely identify the gemstone.

Abstract: In some examples, a first device may detect the presence of a second device or a particular person and, when a triggering event related to the second device or the particular person applies, the first device may change from a first mode to a second mode.

Abstract: Techniques described herein generally include methods and systems related to cooperatively caching data in a chip multiprocessor. Cooperatively caching of data in the chip multiprocessor is managed based on an eviction rate of data blocks from private caches associated with each individual processor core in the chip multiprocessor. The eviction rate of data blocks from each private cache in the cooperative caching system is monitored and used to determine an aggregate eviction rate for all private caches. When the aggregate eviction rate exceeds a predetermined value, for example the threshold beyond which network flooding can occur, the cooperative caching system for the chip multiprocessor is disabled, thereby avoiding network flooding of the chip multiprocessor.

Abstract: Nano scale collagen particles can be obtained from an embrittling and attrition process that reduces the size of collagen particles to the nano scale. These nano scale collagen particles have many favorable properties such as providing beneficial and enhanced properties for cell seeding and wound healing. The nano scale collagen particles can be included in biocompatible (e.g., biostable or biodegradable) compositions and are useful for wound treatment and management, as well as in cell cultures and tissue engineering implants.

Abstract: Filtration systems and methods for removing a filter residue from a filter employed in filtering a liquid (for example, grey water). The filtration system may include a vessel having an inlet through which a liquid can be introduced during use and an outlet through which filtered clean liquid can exit. A filter configured to filter the liquid is disposed within the vessel between the inlet and the outlet. The filtration system may further include at least one transducer disposed on or adjacent to the filter. The at least one transducer may be configured to generate one or more pressure waves effective to dislodge at least some residue materials collected on an upstream side of the filter.

Abstract: Polymers, co-polymers, and monomers using CO2 as a reagent and methods of production thereof are described. Polymerization methods include converting CO2 into a polymerizable monomer by exciting the CO2 with a light source.

Abstract: In one example embodiment, live migration in a datacenter may include JIT compiling a process that is configured to be executed on both a source instruction set architecture and a destination instruction set architecture, mapping variables and address stacks of the process on both the source instruction set architecture and the destination instruction set architecture into a labeled form thereof, and mapping the labeled form of the variables and address stacks onto the destination instruction set architecture.

Abstract: Technologies are generally described herein for bandwidth amplification using a pre-clock signal to latch data at a latch in an input register of a sender section while passing the data through a multiplexer of the sender section in a serial manner. In some configurations, pre-clocking the multiplexer can allow for parallel operations to occur within the sender section, thus hiding or reducing the effects of certain serialization delays associated with the multiplexer. Furthermore, the pre-clocking of the multiplexer, in some configurations, hides or reduces the register latch hold and setup delays. A method may create three levels of parallelization of latencies between a sender circuit, a serialization circuit, and a receiver circuit by overlapping them at same time.

Abstract: Technologies are generally provided for a hybrid architecture of an enhanced networked environment implementing a centralized management of peer-to-peer (P2P) code exchange for secure real-time content distribution. In some examples, central game servers in a massively multiplayer online game (MMOG) service may prepare both P2P admission and eviction planning and P2P element integration packages, instructing a game client whom to send data to while also removing exploitable data from the P2P channel. Thus, large amounts of data may be offloaded from a datacenter hosting an MMOG or similar service involving high numbers of users to P2P connections.

Abstract: Described herein is a method of converting a first alcohol to a second alcohol that includes forming a mixture including a superparamagnetic catalyst and a feedstock, wherein the feedstock includes the first alcohol, and exposing the mixture to a fluctuating magnetic field to form a product, wherein the product includes a second alcohol having a longer carbon chain length than the first alcohol. A flow-through method is described for converting a first alcohol to a second alcohol, wherein the second alcohol has a longer carbon chain length than the first alcohol. Also described is a method of converting glycerol to butanol that includes forming a mixture including a superparamagnetic catalyst and a feedstock, wherein the feedstock includes glycerol, and exposing the mixture to a fluctuating magnetic field to form a product, wherein the product includes butanol. A flow-through method is described for converting glycerol to butanol.

Abstract: Technologies are generally described for phase measuring profilometry (PMP) using structured light patterns based on orthogonal frequency division multiplexing (OFDM). In some examples, a composite structured light pattern generated using OFDM may be used to illuminate a surface of interest. The surface may reflect a phase-distorted version of the structured light pattern, and the phase-distorted structured light pattern may be processed to recover image and/or height information about the surface. In some embodiments, fast Fourier transform schemes may be used to generate the composite structured light pattern and process the phase-distorted structured light pattern.