Abstract: A method for distributing multiple cryptographic keys used to access data includes: receiving a data signal superimposed with an access key request, wherein the access key request includes at least a number, n, greater than 1, of requested keys; generating n key pairs using a key pair generation algorithm, wherein each key pair includes a private key and a public key; deriving an access private key by applying the private key included in each of the n key pairs to a key derivation algorithm; generating an access public key corresponding to the derived access private key using the key pair generation algorithm; and electronically transmitting a data signal superimposed with a private key included in one of the n key pairs for each of the n key pairs.

Abstract: A golf club head comprising at least one part manufactured via a metal injection molding process, and attached to another part of the golf club head via electrical resistance welding or electrical resistance brazing, is disclosed herein. The present invention is also directed to a method of making said golf club head, the method comprising the steps of providing a first golf club head part made from a first metal material, metal injection molding a second golf club head part from a second, different metal material, and electrical resistance welding or electrical resistance brazing the second golf club head part to the first golf club head part to form a combined part.

Abstract: Counter-flow heat exchanged is constructed with plenums at either end that separate the opposing fluids, the channels of which are arrayed in a checkerboard patterns, such that any given channel is surrounded by channels of opposing streams on four sides—laterally on both sides and vertically above and below.

Abstract: The present disclosure relates to vascular devices such as guidewires and microcatheters having integrated coil sections for optimizing torquability, flexibility, and ability to shape and maintain the distal tip. A guidewire device includes a core and a tube structure coupled to the core such that at least a portion of the core passes into the tube structure. A distal section of the tube structure includes a spiral cut arrangement that configures the distal section as an integral coil integrally incorporated as part of the tube structure. The integrated coil configuration increases the flexibility of the tube structure to reduce the tendency of resilient forces from the tube structure to disrupt a shaped distal tip of the guidewire device.

Abstract: A method for propagating configuration data using a blockchain includes: storing a blockchain comprised of a plurality of blocks, each being comprised of a block header having a timestamp and one or more configuration transactions; receiving one or more configuration data items; generating a new configuration transaction for each configuration data item; hashing a most recent block identified based on the timestamp included in the respective block header to generate a previous block hash value; hashing a combination of the new configuration transactions and/or data associated therewith to generate a current block hash value; generating a new block header, the new block header including a current timestamp, the previous block hash value, the current block hash value, and a digital signature; generating a new block comprised of the new block header and each new configuration transaction; and updating the blockchain by appending the new block.

Abstract: A modular structure includes a sill and a plurality of interlocking panels. The interlocking panels are attached to one another to form a panel assembly having a first end and a second end. The first end of the panel assembly is attached to a first side of the sill, and the second end of the panel assembly is attached to a second, opposing side of the sill.

Abstract: An approach is provided for deterring a tampering of content. Content is signed by using an asymmetric key cryptography. The signed content is stored in a distributed ledger which is accessible to a plurality of subscribers of the distributed ledger. The signing of the content using the asymmetric key cryptography together with the storing of the signed content in the distributed ledger provide a non-repudiable identification of an owner of the content and a non-repudiable proof of an ownership of the content.

Abstract: Devices, methods and systems are provided for occluding an opening within the tissue of a body, such as a left atrial appendage. In one embodiment, a delivery system for use in occluding an opening in the tissue of a body includes an actuation assembly operatively coupled to a medical device including an anchor portion and an occluder portion. The actuation assembly is configured to move the anchor portion between a deployed state and retracted state while the occluder portion maintains a deployed state. With this arrangement, the deployed occluder portion can be visualized via imaging at a preferred position prior to deploying the anchor portion of the medical device.

Abstract: Devices, methods and systems are provided for occluding an opening within the tissue of a body, such as a left atrial appendage. In one embodiment, a medical device includes an anchor portion and an occluder portion. The anchor portion includes frame segments, each anchor frame segment extending between a first end and a second end such that the second end of each anchor frame segment is coupled to an anchor hub. The occluder portion includes a hub that defines an axis. The occluder portion includes multiple occluder frame segments that extend between a proximal end and a distal end such that the proximal end of the occluder frame segments are pivotably coupled to the hub and the distal end of the occluder frame segments are pivotably coupled to the first end of the anchor frame segments.

Abstract: A computer-implemented method according to one embodiment includes determining a location within a file system that is potentially vulnerable to hardware failures, and injecting one or more simulated hardware failures into the determined location within the file system. The method further includes determining whether the file system was damaged as a result of injecting the simulated hardware failure(s). In response to determining that the injection of the simulated hardware failure(s) resulted in damage to the file system, it is determined whether the damage is repairable. Based on whether the file system was damaged as a result of injecting the simulated hardware failure(s) and/or based on whether or not the damage is determined to be repairable, a tolerance-to-storage-failure score is assigned to the file system.

Abstract: The invention provides a method of lubricating a 2-stroke marine diesel cylinder liner with a lubricating composition having a total base number of 10 to 25 mg KOH/g. The invention further provides a lubricating composition for lubricating the 2-stroke marine diesel cylinder liner.

Abstract: A microscale device may include a patterned forest of vertically grown and aligned carbon nanotubes defining a carbon nanotube forest with the nanotubes having a height defining a thickness of the forest. The patterned forest may define a patterned frame that defines one or more components of the microscale device. The microscale device may also include a conformal coating of substantially uniform thickness extending throughout the carbon nanotube forest. The carbon nanotube forest may have a thickness of at least three microns. The conformal coating may substantially coat the nanotubes, define coated nanotubes and connect adjacent nanotubes together such that the carbon nanotube forest is sufficiently robust for liquid processing, without substantially filling interstices between individual coated nanotubes. The microscale device may also include a metallic interstitial material infiltrating the carbon nanotube forest and at least partially filling interstices between individual coated nanotubes.

Abstract: Devices, methods and systems are provided for occluding an opening within the tissue of a body, such as a left atrial appendage. In one embodiment, a medical device includes an occluder portion and an anchor portion. The occluder portion includes a hub that defines an axis, the occluder portion extending between a proximal end coupled to the hub and a distal end defining an occluder eyelet adjacent thereto. The anchor portion extends between a first end and a second end, the first end coupled to an anchor hub and the second end defining an anchor eyelet adjacent thereto and hingeably coupled to the occluder eyelet. With this arrangement, the anchor hub is moveable along the axis to move the anchor portion between a retracted position and a deployed position upon the occluder portion being in an expanded position.

Abstract: A computer-implemented method according to one embodiment includes performing a first process for each chunk of data of each file of a snapshot of a file system. The first process includes reading a given chunk of data of a given file of a first snapshot of the file system, and reading shadow records of a shadow file of the first snapshot. The given chunk of data is compared with the shadow records for determining whether a coherent state exists between the given chunk of data and one or more of the shadow records that were recorded in a snapshot creation window. In response to determining that no coherent state exists, an indication is recorded that the given chunk of data is corrupt. In response to determining that a coherent state exist, an indication is recorded that the given chunk of data is accurate.

Abstract: The invention generally relates to novel poly-substituted cis stilbenes, their synthesis, their purification, and their use in thermoset resins. These novel cis stilbenes give rise to thermoset resins with greatly improved processing characteristics such as lower melting temperature and lower viscosity; resulting in polymers and composites having greatly improved thermal stability.

Abstract: A golf club head comprising at least one part manufactured via a metal injection molding process, and attached to another part of the golf club head via electrical resistance welding or electrical resistance brazing, is disclosed herein. The present invention is also directed to a method of making said golf club head, the method comprising the steps of providing a first golf club head part made from a first metal material, metal injection molding a second golf club head part from a second, different metal material, and electrical resistance welding or electrical resistance brazing the second golf club head part to the first golf club head part to form a combined part.

Abstract: The present disclosure relates to guidewire devices with an outer tube and a core. The distal section of the core extends into and is surrounded by the outer tube. One or more centering mechanisms are also disposed within the outer tube and are arranged to fill a portion of the annular space between the core and the inner surface of the tube. The one or more centering mechanisms thereby assist in keeping the distal section of the core axially aligned within the tube, which enables effective control of the device and minimizes undesirable whip movements of the guidewire.

Abstract: A diamondoid fuel comprising a cage structure including 10, 14, 18, or 22 carbons. The diamondoid fuel also includes one of one to four cyclopropyl groups bonded to the cage structure or two to four functional groups bonded to the cage structure where the functional groups are an alkyl group, an allyl group, a cyclopropyl group, or combinations thereof. Additionally, at least one functional group is an allyl group and at least one functional group is a cyclopropyl group.

Abstract: The invention provides a lubricating composition containing an antiwear agent and an oil of lubricating viscosity. The invention further relates to the use of the lubricating composition in an internal combustion engine, or a driveline device.

Abstract: The disclosed technology relates to lubricants for compression ignition internal combustion engines, particularly those demonstrating at least one of improved seals performance, reduced deposit formation, and excellent durability. The present invention provides a low zinc lubricating composition comprising (a) an oil of lubricating viscosity, (b) a borated dispersant, and (c) a metal-free organo-phosphorus anti-wear additive, wherein the lubricating composition is substantially free of a metal containing sulfur coupled alkyl phenol compound. Further, the low zinc lubricating composition contains zinc in an amount less than 600 ppm by weight of the composition.