摘要:
Provided are an apparatus and a method for generating a return-to-zero (RZ) signal, including: a first modulator receiving a first signal having a predetermined frequency to modulate, compensate for and output a first laser beam; a second modulator receiving a second signal complementary to the first signal to modulate, compensate for, and output a second laser beam; a mixer mixing signals output from the first and second modulators to output a third signal; and a third modulator modulating the third signal into an RZ signal and outputting the RZ signal.
摘要:
Provided are an Ethernet line card and a method of providing various services using the same. The Ethernet line card includes: a priority allocation unit setting a priority of a received Ethernet packet according to a pre-set control standard based on header information of the Ethernet packet; a quality of service (QoS) guarantee unit defining a capacity per class based on a pre-set QoS standard, inserting the Ethernet packet into a relevant class, and dropping and managing the Ethernet packet based on the priority if the Ethernet packet exceeds a capacity of the relevant class; and a signal processing unit managing and updating the pre-set control standard and the pre-set QoS standard, receiving results of processing the Ethernet packet from the priority allocation unit and the QoS guarantee unit, and storing the received results.
摘要:
Disclosed herewith is a broadband wireless repeater for a mobile communication system. The broadband wireless repeater generally includes a transmission stage and a receiving stage. The transmission stage includes an RF switch for establishing a frequency path, an Intermediate Frequency delay unit for applying delay to IFs and bypassing the IF delay, a frequency up conversion modulator, an amplifier, a filter unit for eliminating undesired band signals, and a transmitting side antenna. The receiving stage includes an array antenna, a band-pass filter unit for eliminating undesired band signals, an amplifier, a phase shifter for controlling phases of channels, a frequency down conversion modulator, a phase comparison unit, a gain comparison unit, a vector value optimizer for decreasing errors of the main signals with a maximum output, and a synthesizing module for detecting and storing output levels of the channels.
摘要:
Provided is a method for producing an antibody binding to a sulfonylated isoform of a protein; not to a non-sulfonylated isoform of the protein and other proteins, including: providing a peptide comprised of 6 to 15 amino acids derived from the protein and having a sulfonylated cysteine residue; inducing an antibody to the peptide in an animal; and isolating a population of antibodies reactive to the peptide.
摘要:
A wire structure may have a loop of fishing line on each of four sides, with weights to lower the line, giving a loop on each side. These loops may be tied to a central fishing line, which a user may pull to close the loops. This may catch a crab if one is in the trap, allowing a user to bring the crab to a wharf or boat, for example. Releasing the fishing line may allow the weights to lower, which may open the loops and release the crab without the user needing to touch the trap near the crab, which may reduce the chance of being pinched by a crab claw.
摘要:
A method of provisioning organization users in a multi-tenant database system includes receiving a request via a single sign-on protocol from an organization user to create a new multi-tenant database user account for access to the multi-tenant database system. The method retrieves rules that specify how to derive user permissions for access to the multi-tenant database system from stored user attributes of the organization user. The method continues with applying the rules to the stored user attributes to determine permissions for the users to access particular objects in the multi-tenant database system, and creating the new user account with the determined user permissions for access to the multi-tenant database system.
摘要:
In accordance with embodiments, there are provided mechanisms and methods for debugging an assertion. These mechanisms and methods for debugging an assertion can enable improved interpretation and analysis of data validation results, more efficient development associated with data validation, etc.
摘要:
In accordance with embodiments, there are provided mechanisms and methods for authenticating and authorizing an external entity. These mechanisms and methods for authenticating and authorizing an external entity can enable improved data security, more efficient data transfer, improved data access channels, etc.
摘要:
Disclosed is a polylactic acid composition with improved heat-resistance and improved impact-resistance. Specifically, in the disclosed polylactic acid composition, both impact strength and heat-resistance are improved by mixing 30 to 80 wt % of polyketone and 10 to 40 wt % of modified rubber. The disclosed polylactic acid composition does not only exhibit excellent in heat resistance, chemical resistance, fuel permeation resistance, abrasion resistance, etc., but also has improved impact-resistance and improved heat resistance. Thus, it is possible to employ polylactic acid as a bioplastic in interior/exterior parts of a vehicle.
摘要:
Disclosed is a polylactic acid composition with improved heat-resistance and improved impact-resistance. Specifically, in the disclosed polylactic acid composition, both impact strength and heat-resistance are improved by mixing 30 to 80 wt % of polyketone and 10 to 40 wt % of modified rubber. The disclosed polylactic acid composition does not only exhibit excellent in heat resistance, chemical resistance, fuel permeation resistance, abrasion resistance, etc., but also has improved impact-resistance and improved heat resistance. Thus, it is possible to employ polylactic acid as a bioplastic in interior/exterior parts of a vehicle.