Abstract: The present invention relates to an efficient process for producing polylactic acid from fermentation of renewable agricultural feed-stocks not limited to molasses or cane bagasse employed as starting material. The present invention in particular provides a cost effective and industrially scalable process for producing polylactic acid obtained by fermentation of Lactic acid having industrial applications.

Abstract: A system for determining the effectiveness of the filtering and maneuverability of a robot for cleaning swimming pools, the robot includes a robot propelling motor, at least one water pump having an impeller and an impeller motor, a pool water inlet leading to a filter, a filtered water outlet, and a propelling mechanism for propelling the robot along the floor and/or walls of the swimming pool, the system comprising a computer for determining and setting an initial power to be supplied to the impeller motor, a first circuit for sensing the actual power supplied to the impeller motor during its operation, a second circuit for calculating the ratio between the set power and an instantaneous power supplied to said impeller motor, and a producer connected to the second circuit for producing an indication signal when the ratio exceeds a predetermined value.

Abstract: There is provided a method and kit for rapid clinical diagnosis of HBV in which the amplimers are transcripts of a pre-core or envelop region gene of HBV. The amplicons are hybridized to a specific oligonucleotide probe, which allows the amplicons to be detected.

Abstract: An apparatus and method for image-compression encoding and decoding using an adaptive transform in which, where different transform coefficients are outputted in accordance with a change of the transform direction order for an input image signal block, encoding and decoding procedures are conducted, based on the transform direction order selected in accordance with the characteristics of the input image signal block. In accordance with the present invention, an orthogonal transform and a inverse orthogonal transform for blocks are controlled, based on a determination made about whether signals within a block, to be currently encoded, have a higher correlation in a vertical direction or in a horizontal direction, using information about blocks encoded or both information about blocks encoded and information about the current block.

Abstract: A tile (1) provided with lateral longitudinal fixed joinable lower elements (13) on an underlying surface (8) and upper (14), and at a front end of the tile, an antisliding detent (15) is present. A method and system for covering a roof using a tile (1) having a central curved portion whereby two or more tiers are formed by the tiles joined together by upper elements and lower elements, and adjacent tiers joined together with one tier overlying an adjacent tier and being locked together by the antisliding detent.

Abstract: The invention provides a gas chromatography method for analyzing materials vaporizable in a gas chromatograph system, the method including filling a sample injection device with a sample of the compounds to be analyzed; transferring the sample compounds into an analytical separation column with a transfer gas; passing a carrier gas inside the analytical separation column for time separation of the sample compounds; controlling the temperature of the column for achieving separation of the sample compounds; transferring the vaporized sample compounds eluted from the column into a flame ionization detector; providing the gases required for the operation of the flame ionization detector, and analyzing the data output of the flame ionization detector for analysis of the sample compounds, wherein the gases required for the operation of the gas chromatograph system are produced by water electrolysis.

Abstract: The invention provides an ion source, including an inlet port for introduction of a sample into the ion source; an outlet port through which an ion beam exits; an ionizer for ionizing the sample; an ion formation chamber confined by an ion cage, and at least one electrical shield for shielding the ion chamber from the penetration of electrical fields affecting the ions inside the chamber.

Abstract: In a mobile communication system of multi-cell environment, a pico-cell indicator is installed at predetermined positions for easy cell-registration change of a mobile station from a micro-cell service area to a pico-cell service area.

Abstract: Information on forward power is indicated in the erasure indicator bit of reverse traffic channel frame. A control station searches for the erasure indicator bit of reverse traffic channel frame transmitted from the a mobile, to judge if forward power control is required. The power is controlled according to a transmission rate previously stored when it is judged that the forward power control is required. The control station searches for the erasure indicator bit of reverse traffic channel frame again after the power control and varies the transmission rate according to the information on forward power, carrying out optimum forward power control.

Abstract: Apparatus and method including a starting file storing portion for matching a large amount of configuration data between an exchanger and an initialized TMN repeater, and a modified file storing portion for storing modified information of configuration data managed by the exchanger, and outputting stored modified information to the TMN repeater after initialization, and if an operator stores exchanger configuration data into the starting file storing portion and stores modified configuration data into the modified file storing portion when initialization, the TMN repeater reads exchanger configuration data stored in the starting file storing portion, and updates corresponding managed object with read date. Then, the TMN repeater reads modified configuration data stored in the modified file-storing portion, and updates corresponding managed object with read data.

Abstract: An image chrominance signal filtering method and apparatus in which object chrominance information and background chrominance information are extracted in an image format conversion process, based on shape information of luminance signals, and then decimation-filtered or interpolation-filtered. In accordance with the method and apparatus of the present invention, it is possible to avoid a color bleeding phenomenon occurring at the boundaries of objects in an image. Accordingly, there is an advantage in that a degradation in picture quality is prevented.

Abstract: The invention concerns a reverse circulation rock drill having a backhead attached to a piston and cylinder assembly between the backhead and a drill bit assembly and around a sample tube with the outer walls of the sample tube and piston profiled to provide air paths for power and exhaust strokes of the piston, a O-ring seal being provided in the backhead as a check valve.

Abstract: In a shape information coding apparatus and method of bordering a binary alpha block (BAB) by pixels to construct contexts when coding binary shape information, adaptive bordering and coding of the shape information is performed in such a manner of receiving the shape information and storing a BAB; determining whether to perform frame mode coding or field mode coding based upon characteristics of the BAB; and when the frame mode coding is selected, performing frame mode bordering before performing frame BAB coding, and when the field mode coding is selected, performing field mode bordering before performing field BAB coding.

Abstract: A novel marine microorganism (Pseudomonas CH07) capable of degrading different congeners namely coplanar, sterically hindered and other chlorobiphenyls present in a technical grade PCBs (Clophen A-50); the aerobic bacterial strain, identified as Pseudomonas CH07 isolated from coastal zone of Arabian sea near Goa, India subjected to intense anthropogenic activity is shown to degrade PCBs of chlorine content (4-7 chlorine atoms per biphenyl).

Abstract: A pilot signal strength adjusting method in mobile communication systems, in which strength of pilot signals generating in CPTU installed in base stations is automatically adjusted according to sum of calls which are allocated to reference frequencies of the base stations so that hard hand off to different frequencies is performed smoothly between adjacent base stations, wherein when a mobile station uses service coverage area of a base station which is installed with CPTU Common Pilot Transmit Unit, or calls of mobile stations are concentrated on a reference frequency of the base station which is installed with the CPTU Common Pilot Transmit Unit, strength of pilot signal is adjusted by increasing and/or decreasing power of CPCA installed in the CPTU by using the sum of calls allocated to a reference frequency of a base station installed with the CPTU, predetermined threshold values of set-up calls, predetermined user-units and predetermined power up/down values, so that the base station may smoothly perform

Abstract: A method for searching an access channel and allocating a finger for a base station is disclosed.

Abstract: A transmission/reception concurrent matching apparatus for a multiple of TDM channels and a method thereof, wherein in matching the TDM channels, upon data transmission, a signal Serial Communication Controller(SCC) stores data to transmit per each data channel into a multiple of First-in First-out buffers(FIFOs) and transmits in order the data from each FIFO by one byte through a TDM bus, and upon data reception, stores the received data through the TDM bus into each FIFO and processes the data from each FIFO by reading out the data in order. As the number of SCC is reduced, the cost to process the data is saved.

Abstract: A switch controlling apparatus for small capacitance ATM exchange comprises Line Interface Modules having a plurality of buffers for storing cell data inputted from an outside apparatus, and a plurality of self order comparators for determining whether the cell data through a contorl bus from a switch module is mine and producing an enable signal when the cell data is determined to mine. It is possible to connect sequentially a plurality of LIMs to the switch module at integer times rate of input cell rate, to simplify the structure of the apparatus of the present invention and thereby to realize stable data communication.

Abstract: A frequency-modulated converter with a series-parallel resonance, particularly for driving any ohmic or inductive load, including gas discharge tubes, wherein a commutating voltage switch in the form of a transistor is provided and is connected in series between a negative electrode of a direct current voltage source and a first terminal of an inductor, and a pulse generator circuit is provided between the voltage source and the transistor's control electrode and the inductor's second terminal is connected to the primary winding of a transformer. A first capacitor and rectifier diode are also provided in a first and second parallel branch respectively between the transistor's charge receiving and charge emitting electrodes, and a second capacitor is provided across the voltage source's electrodes, and a smoothing capacitance is provided for the voltage source, the second capacitor being connected in series with the inductor via the diode.