Abstract: The present invention discloses a method for producing lithium carbonate from a low-lithium brine by separating magnesium and enriching lithium. A salt-lake brine is used as a raw material and is converted into halide salts through dehydration by evaporation and separation by crystallization; the halide salts are directly extracted using trialkyl phosphate or a mixture of trialkyl phosphate and monohydric alcohol, and an organic extraction phase as well as remaining halide salts are obtained after solid-liquid separation; reverse extraction is performed on the organic extraction phase to obtain a lithium-rich solution with a low magnesium-to-lithium ratio, and lithium carbonate is obtained after concentration and removal of magnesium by alkalization. The used solid-liquid extraction method is simple with no co-extraction agent used, and a solute distribution driving force is strong, unaffected by phase equilibrium of the brine extraction agent.

Abstract: In an example, an apparatus for detecting signal loss on a serial communication channel coupled to a receiver includes an input, a detector, and an output circuit. The input is configured to receive decisions generated by sampling the serial communication channel using multiplexed decision paths in a decision feedback equalizer (DFE). The detector is coupled to the input and configured to monitor the decisions for at least one pattern generated by the multiplexed decision paths in response to absence of a serial data signal on the serial communication channel. The output circuit is coupled to the detector and configured to assert loss-of-signal in response detection of the at least one pattern by the detector.

Abstract: An example method of clock and data recovery in a receiver includes generating data samples and crossing samples of a received signal based on a data phase and a crossing phase, respectively, of a sampling clock supplied by a phase interpolator in the receiver; generating a phase detect result signal in response to phase detection of the data samples and the crossing samples; filtering the phase detect result signal to generate a phase interpolator code, the phase interpolator generating the sampling clock based on the phase interpolator code; determining an average phase detect result from the phase detect result signal; and adjusting the phase interpolator code in response to the average phase detect result being less than a threshold value.

Abstract: Disclosed herein are methods, systems and devices for evaluating a health condition of an Internet user. In one embodiment, the method comprises acquiring Internet activity data associated with a plurality of users, the plurality of users including a first user; selecting a set of sample users from the plurality of users based on a plurality of specified Internet activities identified in Internet activity data associated with the first user; extracting characteristic data for the first user and the set of sample users from the Internet activity data; utilizing the characteristic data as at least one parameter of a health index calculation model; and calculating a health index for the first user based on the health index calculation model.

Abstract: A computer implemented method of storing data in at least one mobile node according to mobile node location may include identifying a first qualified mobile node and determining a first geographic position of the first qualified mobile node. The method may include determining a user geographic position of a user device, determining whether the first geographic position is within a first proximity relative to the user device, and causing storage of a first data portion in the first qualified mobile node in response to determining that the first geographic position is within the first proximity.

Abstract: The invention relates to antibodies which treat diseases in which human IL-8, Gro-alpha, Gro-beta, Gro-gamma, GCP-2, and/or ENA-78 are implicated.

Abstract: A method for accessing webpages based on a transit mode is provided. A crawler route server receives a webpage access request sent from a client where the webpage access request contains identification of a target website to be accessed. The crawler route server obtains a target crawler server which has the fastest speed for accessing the target website corresponding to the identification of the target website to be accessed from at least one crawler server. Further, the method includes the crawler route server returns the identification of the target crawler server to the client, and the client accesses the target website through the target crawler server corresponding to the identification of the target crawler server.

Abstract: A computer implemented method of storing data in at least one mobile node according to mobile node location may include identifying a first qualified mobile node and determining a first geographic position of the first qualified mobile node. The method may include determining a user geographic position of a user device, determining whether the first geographic position is within a first proximity relative to the user device, and causing storage of a first data portion in the first qualified mobile node in response to determining that the first geographic position is within the first proximity.

Abstract: Techniques that facilitate management of skewed data during a parallel multiple join operation are provided. Portions of tables involved in the join operation can be distributed among a plurality of processing modules, and each of the processing modules can be provided with a list of skewed values of a join column of a larger table involved in the join operation. Each of the processing modules can scan the rows of first and second tables distributed to the processing modules and compare values of the join columns of both tables with the list of skewed values. One or more of the processing modules can then redistribute the skewed values.

Abstract: Techniques for data assignment from an external distributed file system (DFS) to a database management system (DBMS) are provided. Data blocks from the DFS are represented as first nodes and access module processors of the DBMS are represented as second nodes. A graph is produced with the first and second nodes. Assignments are made for the first nodes to the second nodes based on evaluation of the graph to integrate the DFS with the DBMS.

Abstract: A computer implemented method of storing data in at least one mobile node according to mobile node location may include identifying a first qualified mobile node and determining a first geographic position of the first qualified mobile node. The method may include determining a user geographic position of a user device, determining whether the first geographic position is within a first proximity relative to the user device, and causing storage of a first data portion in the first qualified mobile node in response to determining that the first geographic position is within the first proximity.

Abstract: In an example, an apparatus for CDR includes at least one data register, at least one edge register having an input coupled to an output of the at least one data register, and a phase detector having inputs coupled to the output of the at least one data register and an output of the at least one edge register. The apparatus further includes a frequency accumulator coupled to an output of the phase detector, a dynamic gain circuit coupled to the output of the phase detector, and a phase accumulator and code generator circuit configured to generate codes to control a phase interpolator based on an output of the dynamic gain circuit and an output of the frequency accumulator.

Abstract: A method for sending requests includes: determining, by a device comprising a processor, the requests and Transmission Control Protocol (TCP) connections between a client and a proxy server; and sending, by the device, the requests to the proxy server via idle TCP connections between the client and the proxy server to forward the requests to a Web server by the proxy server, or establishing, by the device, TCP connections between the client and the proxy server depending on whether the requests are serial or parallel requests, the number of the idle TCP connections between the client and the proxy server, and the number of TCP connections which are needed during sending the requests; and sending, by the device, the requests to the proxy server via the idle TCP connections and the established TCP connections to forward the requests to the Web server by the proxy server.

Abstract: Clock data recovery can be accomplished using a phase change determination circuit that generates, based upon detected phase differences between a capture clock signal and data signal, a delta signal and a delta selection signal. A calculation circuit generates a set of phase interpolation (PI) codes from prior and speculative values of the delta signal. A selection circuit selects, in response to the delta selection signal, between the sets of PI codes, which are provided as an output of the clock data recovery device.

Abstract: Clock data recovery can be accomplished using a phase path circuit that is configured to receive a data signal and a clock signal. A phase detection circuit detects phase differences between the data signal and a plurality of clock signals and generates a phase adjustment signal based upon a majority voting of the detected phase differences. Speculative calculation circuits generate speculative phase selection signals. Selection circuits select, in response to the phase adjustment signal, from speculative phase selection signals to provide outputs of the phase path circuit.

Abstract: A flexibly engaged continuously variable transmission gearbox includes the following components connected sequentially in a transmission: a power input shaft conical roller, a sectional input flexible sprocket, a tooth-shaped chain, a sectional output flexible sprocket, a power output shaft conical roller. When the power input shaft conical roller rotates, it drives five sectional input flexible sprocket members that are slidably matched in five equidistant T-shaped grooves on the conical roller to rotate. The sectional input flexible sprocket drives the tooth-shaped chain engaged therewith to transmit, and thus drives the five sectional output flexible sprocket members that are slidably matched in the five equidistant T-shaped grooves on the output shaft conical roller to rotate. The five sectional output flexible sprocket members are connected to the output shaft conical roller through the five equidistant slidable T-shaped grooves.

Abstract: Methods and apparatus are described for synchronously stepping at least one of a data phase interpolator (PI) code or a crossing PI code in a clock and data recovery (CDR) circuit until one or more preset criteria are satisfied. One example method generally includes determining that a condition has been met; based on the determination, stepping, in a CDR circuit, at least one of a data PI code or a crossing PI code for each cycle of a clock; stopping the stepping based on one or more criteria to generate a predetermined state of the data PI code and the crossing PI code, wherein the predetermined state comprises an offset between the data PI code and the crossing PI code; receiving a data stream; and performing clock and data recovery on the data stream based on the offset between the data PI code and the crossing PI code.

Abstract: Techniques for accessing a parallel database system via an external program using vertical and/or horizontal partitioning are provided. An external program to a database management system (DBMS) configures external mappers to process a specific portion of query results on specific access module processors of the DBMS that are to house query results. The query is submitted by the external program to the DBMS and the DBMS is directed to organize the query results in a vertical or horizontal manner. Each external mapper accesses its portion of the query results for processing in parallel on its designated AMP or set of AMPS to process the query results.

Abstract: A method for sending requests includes: determining, by a device comprising a processor, the requests and Transmission Control Protocol (TCP) connections between a client and a proxy server; and sending, by the device, the requests to the proxy server via idle TCP connections between the client and the proxy server to forward the requests to a Web server by the proxy server, or establishing, by the device, TCP connections between the client and the proxy server depending on whether the requests are serial or parallel requests, the number of the idle TCP connections between the client and the proxy server, and the number of TCP connections which are needed during sending the requests; and sending, by the device, the requests to the proxy server via the idle TCP connections and the established TCP connections to forward the requests to the Web server by the proxy server.

Abstract: Methods and systems for distributed computation of graph data permit edge collection and vertex collection, each to be partitioned among a plurality of computational units. In one embodiment, the methods employ a two-phase computational cycle, which is repeated until the computation is complete. In a first phase, processing units process each active edge and vertex by doing the following: reading their current attribute values, executing programmed computational functions, updating edge attributes and sending data messages to vertices. In a second phase, each vertex update processor processes each of its active vertices by doing the following: reading its current attribute values and received data messages, executing a programmed computational function, and updating the vertex's attribute values.