Abstract: A memory device is provided. The memory device includes a variable resistance layer. A selection device layer is electrically connected to the variable resistance layer. The selection device layer includes a chalcogenide switching material having a composition according to chemical formula 1 below, [GeASeBTeC](1-U)[X]U??(1) where 0.20?A?0.40, 0.40?B?0.70, 0.05?C?0.25, A+B+C=1, 0.0?U?0.20, and X is at least one selected from boron (B), carbon (C), nitrogen (N), oxygen (O), phosphorus (P), or sulfur (S).

Abstract: Techniques for efficiently loading graph data into memory are provided. A plurality of node ID lists are retrieved from storage. Each node ID list is ordered based on one or more order criteria, such as node ID, and is read into memory. A new list of node IDs is created in memory and is initially empty. From among the plurality of node ID lists, a particular node ID is selected based on the one or more order criteria, removed from the node ID list where the particular node ID originates, and added to the new list. This process of selecting, removing, and adding continues until no more than one node ID list exists, other than the new list. In this way, the retrieval of the plurality of node ID lists from storage may be performed in parallel while the selecting and adding are performed sequentially.

Abstract: Techniques for storing and processing graph data in a database system are provided. Graph data (or a portion thereof) that is stored in persistent storage is loaded into memory to generate an instance of a particular graph. The instance is consistent as of a particular point in time. Graph analysis operations are performed on the instance. The instance may be used by multiple users to perform graph analysis operations. Subsequent changes to the graph are stored separate from the instance. Later, the changes may be applied to the instance (or a copy thereof) to refresh the instance.

Abstract: The present disclosure discloses a communication method for a slave device connected to a master device via an I2C bus. The method includes detecting the condition of a byte end flag when the slave device is in a transmission mode, and clearing the byte end flag to stop transmitting data to the master device as the slave device is in the transmission mode when the byte end flag is detected to be in a first condition. The first condition indicates all data requested by the master device has been transmitted by the slave device. The present disclosure further discloses a slave device using the above-mentioned communication method. When the slave device is in the transmission mode, it is unnecessary to switch the operation mode of the slave device to stop the slave device from continuing transmitting data when the last byte of data has been transmitted.

Abstract: A semiconductor memory device including first lines and second lines overlapping and intersecting each other, variable resistance memory elements disposed at intersections between the first lines and the second lines, and switching elements disposed between the variable resistance memory elements and the first lines. At least one of the switching elements includes first and second chalcogenide compound layers, and conductive nano-dots disposed between the first and second chalcogenide compound layers.

Abstract: Disclosed are methods using degradable silica nanoshells for local intra-operative ultrasound marking; tumor detection via systemic injection; and nanoshell enhanced ultrasonic ablation of tumors.

Abstract: There is provided a non-volatile memory device which can enhance the reliability of a memory device by using an ovonic threshold switch (OTS) selection element including a multilayer structure. The non-volatile memory device includes a first electrode and a second electrode spaced apart from each other, a selection element layer between the first electrode and the second electrode, which is closer to the second electrode rather than to the first electrode, and which includes a first chalcogenide layer, a second chalcogenide layer, and a material layer disposed between the first and second chalcogenide layers. The first chalcogenide layer including a first chalcogenide material, and the second chalcogenide layer including a second chalcogenide material. A memory layer between the first electrode and the selection element layer includes a third chalcogenide material which is different from the first and second chalcogenide materials.

Abstract: A memory device includes a variable resistance layer and a selection device layer electrically connected to the variable resistance layer. The memory device further included a chalcogenide switching material that reduces leakage current and has, for example, a composition according to chemical formula 1 below, [GeXSiY(AsaTe1-a)Z](1-U)[N]U??(1) (where 0.05?X?0.1, 0.15?Y?0.25, 0.7?Z?0.8, X+Y+Z=1, 0.45?a?0.6, and 0.08?U?0.2).

Abstract: A semiconductor memory device including first lines and second lines overlapping and intersecting each other, variable resistance memory elements disposed at intersections between the first lines and the second lines, and switching elements disposed between the variable resistance memory elements and the first lines. At least one of the switching elements includes first and second chalcogenide compound layers, and conductive nano-dots disposed between the first and second chalcogenide compound layers.

Abstract: A variable resistance memory device may include separate memory cells between separate vertical intersections of first conductive lines extending in a first direction and second conductive lines extending in a second direction intersecting the first direction. A memory cell may include a switching element and a variable resistance structure coupled in series between a first conductive line and a second conductive line. The switching element may include at least one insulative impurity and a chalcogenide material. The variable resistance structure may reversibly switch phases, between a crystalline state and an amorphous state, at a first phase transition temperature, and the switching element may reversibly switch phases, between a crystalline state and an amorphous state, at a second phase transition temperature, where the second phase transition temperature is greater than the first phase transition temperature.

Abstract: A method and apparatus for a graph database instance (GDI) maintaining a secondary index, that indexes data from a sparse data map storing graph application data, within a sparse data map dedicated to the secondary index. The GDI formulates row-keys, for the secondary index map, by hashing the values of key/value pairs stored in rows of a map storing application data. The GDI stores for each formulated row-key, in the row of the secondary index that is indexed by the formulated row-key, references to rows of the map storing application data that match the key/value pair on which formulation of the row-key was based. The row-keys into the secondary index map may incorporate bucket identifiers, which, for each key/value pair, allows the GDI to spread the references to graph elements that match the key/value pair among a set number of “buckets” for the key/value pair within the secondary index map.

Abstract: A clearance detection system for a railway vehicle includes a cross beam, an upright column connected to two ends of the cross beam through an adjusting block, an inclined support connected to the upright column and the cross beam for supporting the upright column and the cross beam, an electric cylinder arranged on the upright column and the cross beam, a telescopic guide rod being provided on a guide rail of the electric cylinder, a connecting plate fixed at an end of the telescopic guide rod, and a PC connected to a controller of the electric-cylinder. The telescopic guide rod is movable along the guide rail of the electric-cylinder under movement of the electric-cylinder, adjusts the position of the industrial camera, and detects the contours of different types of rail vehicles.

Abstract: Techniques for storing and querying graph data in a key-value store are provided. A graph statement (e.g., an RDF graph statement) includes a plurality of values, at least two of which correspond to nodes in a graph. A key is generated based on the graph statement. The key may be generated based on concatenating hash values that are generated based on the plurality of values. The key-value store stores the key. The value that corresponds to the key may be a null or empty value. In response to a graph query (e.g., in SPARQL) that includes one or more query patterns, each of which includes one or more values, a key is generated based on the one or more values and sent to the key-value store, which returns one or more other keys, each of which is a superset of the generated key.

Abstract: A variable resistance memory device including a selection pattern; an intermediate electrode contacting a first surface of the selection pattern; a variable resistance pattern on an opposite side of the intermediate electrode relative to the selection pattern; and a first electrode contacting a second surface of the selection pattern and including a n-type semiconductor material, the second surface of the selection pattern being opposite the first surface thereof.

Abstract: A variable resistance memory device includes a first electrode layer and a selection device layer on the first electrode layer. The selection device layer includes a first chalcogenide material obtained by doping at least one of boron or carbon into a chalcogenide switching material. A second electrode layer is on the selection device layer. A variable resistance layer is on the second electrode layer. The variable resistance layer includes a second chalcogenide material including at least one different element from the chalcogenide switching material. A third electrode layer is on the variable resistance layer.

Abstract: A method and system are provided for detection of localized hydrogen peroxide within tissue by introducing a catalase-containing material into at location of interest, positioning an ultrasound transducer over the location, and generating an ultrasound image to detect microbubbles, where the presence of microbubbles indicate the presence of localized hydrogen peroxide. The catalase-coated surface may be the inner surface of a microtube, on the surface of or incorporated within a nanosphere or microsphere, or an implantable device.

Abstract: A repository server that provides stored copies of Web-accessible documents A client of the repository server may register a document in the repository server. The repository server makes a copy of the registered document and returns a repository URL for the copy to the client. The repository URL may be used to fetch the copy from the repository URL. Registration further relates the stored copy to its document URL, to an identifier for the stored copy, to a fingerprint that is a condensed representation of the stored copy's content and can be used to determine degrees of similarity other than match-no match, and to a set of stored copies having similar content. The fingerprints are used to compute similarity. The similarity computation further employs comparisons of links in the documents and of document URLS to determine whether it is necessary to use the fingerprints to compute similarity.

Abstract: A repository server that provides stored copies of Web-accessible documents A client of the repository server may register a document in the repository server. The repository server makes a copy of the registered document and returns a repository URL for the copy to the client. The repository URL may be used to fetch the copy from the repository URL. Registration further relates the stored copy to its document URL, to an identifier for the stored copy, to a fingerprint that is a condensed representation of the stored copy's content and can be used to determine degrees of similarity other than match-no match, and to a set of stored copies having similar content. The fingerprints are used to compute similarity. The similarity computation further employs comparisons of links in the documents and of document URLS to determine whether it is necessary to use the fingerprints to compute similarity.

Abstract: Embodiments use successive refinement to allow a user to systematically explore the result set of an arbitrary query over RDF, such as a SPARQL query. A user inputs an arbitrary base query and modifies this query by replacing selected variables with values to which each selected variable is bound within the result set of the base query. Embodiments present, via a GUI, variable facets that may be substituted for query variables. Embodiments also present, through a GUI, a query history graph that represents query versions that a user has created. A user may navigate this query history graph to return to previously-created query versions. The GUI also provides information about the facets, including a number of results that would be included in the result set of the query version resulting from substitution of the facet for the associated variable.

Abstract: A clearance detection system for a railway vehicle includes a cross beam, an upright column connected to two ends of the cross beam through an adjusting block, an inclined support connected to the upright column and the cross beam for supporting the upright column and the cross beam, an electric cylinder arranged on the upright column and the cross beam, a telescopic guide rod being provided on a guide rail of the electric cylinder, a connecting plate fixed at an end of the telescopic guide rod, and a PC connected to a controller of the electric-cylinder. The telescopic guide rod is movable along the guide rail of the electric-cylinder under movement of the electric-cylinder, adjusts the position of the industrial camera, and detects the contours of different types of rail vehicles.