Abstract: Provided is a cryptographic device for fast session switching, and more particularly, a cryptographic device using a block cipher algorithm and capable of rapidly performing session switching. The cryptographic device includes: a block cipher algorithm executer for performing encryption or decryption on input data using an initialization vector and a round key corresponding to a current session; an initialization vector manager for storing an initialization vector input from outside of the cryptographic device and an initialization vector received from the block cipher algorithm executer, and providing the initialization vector corresponding to the current session to the block cipher algorithm executer; and a session round key generator for storing a session key input from outside of the cryptographic device, generating the round key based on a session key corresponding to the current session, and providing the round key to the block cipher algorithm executer.

Abstract: The present invention provides a process for the extraction and isolation of bioactive lignans with high yield and purity from Sesame oil by sequential extraction, crystallization, and saponification. The present invention provides a process for the production of highly pure bioactive lignan crystal, lignan enriched formulations with lignan content varying from 50 to 95% and with product flexibility and also at the same time preserve the starting raw material i.e. sesame oil.

Abstract: The present invention provides a time-frequency code spreading method in an OFDMA system. The method includes: converting a transmission message into one or more modulating signal vectors, and each bit of the transmission message is spread onto all vector elements of a modulating signal vector; mapping one or more modulating signal vectors to a set of time-frequency grids, wherein in an OFDMA time-frequency plane, two time-frequency grids to which any two vector elements in each modulating signal vector are mapped do not have the same frequency location or time location. In addition, the present invention also provides a time-frequency code spreading apparatus in an OFDMA system.

Abstract: A system and method of controlling torque of plural variable displacement hydraulic pumps in construction equipment are provided, which can control torque of the variable displacement hydraulic pumps so that the total amount of torque of the hydraulic pumps does not exceed the preset amount of torque by presetting the torque so that the engine does not stop even at maximum load of the hydraulic pumps or by presetting the speed of the engine or the used torque of the hydraulic pumps in consideration of the fuel economy or working speed.

Abstract: Provided are an apparatus and method for efficiently and dynamically allocating a bandwidth on a Time Division Multiple Access-based Passive Optical Network (TDMA PON).

Abstract: A clock receiver in a semiconductor integrated circuit includes a first clock buffer configured to buffer an external clock to generate a low frequency buffered clock in response to a first operation signal; a second clock buffer configured to buffer the external clock to generate a high frequency buffered clock in response to a second operation signal; and an internal clock generating unit configured to receive the low frequency buffered clock and the high frequency buffered clock, to control states of the first operation signal and the second operation signal and to generate an internal clock.

Abstract: A two-factor authenticated key exchange method. A subscriber station transmits a value generated by using an identifier and an authentication server's public key to the authentication server through an access point. The authentication server uses the value to detect the subscriber's password, a key stored in a token, and the authentication server's secret key, generate a random number. The subscriber station uses the random number, password, and the key to transmit an encrypted value and the subscriber's authenticator to the authentication server. The authentication server establishes a second value generated by using the password, key, and random number to be a decrypted key to decrypt the encrypted value, authenticate the subscriber's authenticator, and transmits the authentication server's authenticator to the subscriber station. The subscriber station authenticates the authentication server's authenticator by using the key and password.

Abstract: The present invention provides novel processes of preparing racemic and optically active cyclopentenones of Formula I: The invention also provides novel cyclopentenones of formula I in racemic or optically active form.

Abstract: The invention provides the compounds of formula (I) or pharmaceutically acceptable salts thereof. The invention also provides pharmaceutical compositions comprising one or more compounds of formula I or intermediates thereof and one more of pharmaceutically acceptable carriers, vehicles or diluents. The invention further provides methods of preparation and methods of use of prodrugs including NO-releasing prodrugs, double prodrugs and mutual prodrugs comprising the compounds of formula I.

Abstract: A method of scrubbing flue gases of two or more diesel engines and a scrubber for scrubbing flue gases of two or more diesel engines. The scrubber (1) comprises scrubbing means (3) for scrubbing the flue gases, and conduits (4) for conveying the flue gases to said scrubbing means (3) to be scrubbed in the same scrubbing process. The different flue gas flows are arranged to be conveyed in separate conduits (4) all the way to the scrubbing means (3).

Abstract: In pneumatic non-load quick dual-speed hydraulic jack, the small of piston ring (17) of hydraulic pump cylinder integrates with pump body (19) and external ring of step pump core (14) to form movable assembly. The middle part of step pump core (14) is provided with pump core step interface (8) used for conversion of hydraulic speed. The step hole on the same axis of pneumatic valve block on special pneumatic valve structure is provided with washer (48), button (49), pneumatic valve core (45), compressed spring (68) and valve core fastness set. The pneumatic valve parts can replace the hydraulic quick pump structure partially when the high-pressure air source is available. High-pressure air delivered to the oil reservoir of the external sleeve (4) presses the hydraulic oil into the oil chamber of oil cylinder, and thus facilitates the quick lift of jack piston under light load or empty load.

Abstract: Disclosed is an object based audio contents generating/playing apparatus. The object based audio contents generating/playing apparatus may include an object audio signal obtaining unit to obtain a plurality of object audio signals by recording a plurality of sound source signals, a recording space information obtaining unit to obtain recording space information with respect to a recording space of the plurality of sound source signals, a sound source location information obtaining unit to obtain sound location information of the plurality of sound source signals, and an encoding unit to generate object based audio contents by encoding at least one of the plurality of object audio signals, the recording space information, and the sound source location information, thereby enabling the object based audio contents to be played using at least one of a WFS scheme and a multi-channel surround scheme regardless of a reproducing environment of the audience.

Abstract: Provided is a web firewall for automatically checking for vulnerabilities, including: an administrating server scheduling part for ordering the examination of an administrating web server according to a predetermined examination schedule; a vulnerability search database calling part for calling a vulnerability search database previously stored according to the order of the administrating server scheduling part; a vulnerability searching part for searching for potential vulnerabilities of the administrating web server corresponding to data included in the called vulnerability search database; a vulnerability information deducing part for optimizing the results searched in the vulnerability searching part to deduce vulnerability information; a vulnerability checking part for checking the vulnerabilities of the administrating web server based on the results deduced from the vulnerability information deducing part; and a detailed vulnerability information reporting part for reporting detailed information on the c

Abstract: A two-wheeled vehicle, in particular a bicycle, with a rear suspension that includes a front chassis supporting a bottom bracket wheel, and a rear oscillating assembly supporting a rear drive wheel. The rear oscillating assembly is attached to the front chassis by a shock-absorber system, a top pivoting link with two pivot points at top and bottom, and a bottom pivoting link with two pivot points at rear and front. The top and bottom pivot points connect the top pivoting link to the front chassis and to the rear oscillating assembly respectively. The rear and front pivot points connect the bottom pivoting link to the front chassis and to the rear oscillating assembly respectively. Thus, during the compression of the shock-absorber system, the top pivoting link oscillates in relation to the chassis, and about an axis that is perpendicular to the chain line.

Abstract: Provided is antenna having metamaterial and providing gain improvement and beamforming together. The antenna includes a resonator and a superstrate. A feed antenna is disposed in the resonator. The superstrate includes a conductive pattern on the resonator for improving gain and beamforming of the feed antenna.

Abstract: Provided are a system for channel sounding of broadband single carrier mobile communications and a method thereof. A channel sounding device is provided, which achieves precise modeling of a broadband mobile communication in a 5 GHz band. The channel sounding device can perform precise channel modeling by collecting broadband channel data of 20 MHz between a base station and a mobile station moving at maximum 150 km/h, using a sounding signal including a 802.15.3 preamble, a maximum length sequence (MLS) signal, and a single carrier frequency domain equalization (SC-FDE) symbol overcoming a limitation of signal distortion of an orthogonal frequency division multiplexing (OFDM) signal. The channel sounding device can simultaneously perform modeling of interference of an adjacent channel as well as a transmission channel.

Abstract: The present invention relates to novel formulations comprising lipoic acid and hyaluronic acid and/or the derivatives thereof for use in the repair of chronic ulcers, the regeneration of damaged skin, the prevention of skin aging and, when administered by the systemic route, to treat peripheral neuropathies and intoxications by chemical and/or biological agents.

Abstract: Provided are a system and a method for measurement voice over Internet protocol (VoIP) quality of experience (QoE), and a compensation method, a method for measuring QoE for a VoIP telephone service in real time, and claiming after-treatment on the basis of the measurement quality. The present invention measures subjective or objective quality for an actually generated call, and allows the subjective or objective quality to be linked with after-treatment such as compensation.