Abstract: A process for the production of yttrium-90, generated by radioactive decay of strontium-90, by means of a generator including a column containing strontium-90 adsorbed on a cation-exchange resin, wherein yttrium-90, the decay product of strontium-90, is obtained by the flow of an eluent through the resin column of the generator, an acetate buffer solution being used as the eluent. The process enables a solution to be obtained which is usable directly for labelling protein substrates, particularly monoclonal antibodies, with yttrium-90.

Abstract: A coherent tracking apparatus for a CDMA receiver capable of achieving high accuracy tracking by suppressing noise. It includes a demodulation correlator for detecting correlation between a received spread signal and a demodulation spreading code replica inphase with a received spreading code included in the received spread signal by multiplying them, an absolute coherent detector for demodulating information data through absolute coherent detection of the correlation signal (despread signal) fed from the demodulation correlator, a tracking correlator for detecting correlation by multiplying the received spread signal by a pair of tracking spreading code replicas whose phases are shifted by .+-.

Abstract: A variable rate transmission method that can vary the transmission rate of data. A transmitting side supplies a transmitted data sequence to an error detecting encoder 105 and a frame memory 103. The frame memory 103 stores data of a variable length to be transmitted in one frame. The error detecting encoder 105 calculates an error detecting code (such as CRC code) for each frame of the transmitted data. A multiplexer 104 adds the calculated error detecting code ahead of the transmitted data to place it at the initial position of the frame, and sequentially outputs the data sequence frame by frame. A receiving side calculates an error detecting code of the data in each transmitted frame in the same manner as the transmitting side, and compares the calculated error detecting code with the error detecting code at the initial position of the frame. The end bit of the frame data is decided as a position at which the two error detecting codes coincide.

Abstract: A tamper evident cap is provided which includes plastic and includes a skirt having means for engaging means on a neck of a container for closing and opening the container, and an annular frangible band connected to and depending from the skirt, wherein the band includes an outer wall frangibly connected to the skirt by a line of weakness comprising fracturable bridges, posts and the like, and an inner wall joined to the bottom of the outer wall by a curvilinear connecting portion and extending therefrom inwardly and upwardly in a generally inverted "J", "U", "V", triangulated curl " or "trapazoidal" cross-sectional shape, wherein the inner wall includes a free end comprising a rim adapted to engage the interfering means on a container.

Abstract: For the transmission of variable length coded data blocks, a threshold arithmetic calculation circuit (9) obtains a threshold from an average of the bit lengths of the variable length coded data blocks for each group of such block, and the judgment circuit (10) makes a judgment as to whether or not those variable length coded data blocks have bit lengths exceeding the threshold of the block group to which such data blocks belong. Then, a block divider circuit 11 divides the variable length coded data blocks having bit lengths exceeding the threshold into blocks having small bit lengths. Each block thus obtained is fixedly equalized in bit length to an average length level and transmitted in that condition.

Abstract: In a mobile communication system, a data communication fixed station 3 and a voice communication fixed station 4 control a common service area, the connection between a mobile station 5 and the data communication fixed station 3 can be quickened. The data communication fixed station 3 notifies, sequentially, the voice communication fixed station 4 of channel informations (e.g., usable channels, traffic quantity). The voice communication fixed station 4 receives the channel information via a broadcast channel for voice communication, and broadcasts the channel information to the mobile stations. When the mobile station 5 is to execute packet communication with an ISDN 1 via the data communication fixed station 3, the mobile station 5 selects an appropriate channel among the channels broadcasted thereto, and notifies the data communication fixed station 3 of the selected channel.

Abstract: A tamper evident sleeve and method of forming the sleeve. The tamper evident sleeve is used in conjunction with a closure or cap, such as a twist-off metal crown seal, for a container or bottle. The sleeve has a skirt made from plastic material which engages the crown seal and rotates with the crown seal in opening and closing the container without discomfort or injury which can be encountered in-directly gripping a metal crown seal. The sleeve also includes a tamper evident feature depending from the skirt of the sleeve which indicates the condition of the container upon the initial removal of the sleeve and crown seal.

Abstract: The communication terminal (102) is provided with a notice unit (204) for recognizing a state of use of itself and states of use of the data terminals (103.sub.1) through (103.sub.n) and notifying a result of the recognition to the network side, whereas the network system (101) is provided with a storage unit (303) for registering a communication terminal in which the communication terminal (102) and at least one of the data terminal (103.sub.1) through (103.sub.n) became usable and deleting the registration of the communication terminal (102) or a communication terminal in which the data terminals (103.sub.1) through (103.sub.n) became unusable, in accordance with a result of the notice made by the notice unit (204), so that a receiving possible state of the communication terminal (102) is preliminarily registered on the side of the network system (101). Moreover, the receiving standby state is discriminated between a voice-only standby state and a voice and packet simultaneous standby state.

Abstract: The present invention relates to an echo canceler for training an echo path estimation without providing a hindrance to a speech. The echo canceler of the present invention includes a pseudo noise generator for generating a certain pseudo noise. This pseudo noise is forcibly supplied to a transmission line for transmitting a far-end talker's voice. Here, in the case where the far-end talker's transmitting speech level is faint or the far-end talker is in a speechless condition, a certain correlation is established between the pseudo noise and a signal of the transmission line for transmitting the near-end talker's voice. Based on such a correlation as just mentioned, a coefficient for generating an echo replica is calculated. Therefore, a training for estimating an echo path is performed based on the pseudo noise and without depending on the far-end talker's voice, thereby enabling to generate an appropriate echo replica.

Abstract: A urea production process with high energy efficiency, in which the urea solution obtained from the synthesis stage is subjected to a first stage of high pressure thermal decomposition of the ammonium carbamate which has not undergone conversion to urea together with simultaneous self-stripping by excess ammonia, the gaseous products from said decomposition being condensed in two stages at different temperatures, in the first of which the heat is directly transferred to a second ammonium carbamate decomposition stage which is divided into two parts, namely a first thermal decomposition part and a second part consisting of adiabatic stripping with part of the carbon dioxide feed to the process.

Abstract: A transmitter receiver implementing both frequency division duplex and time division duplex in one device in a CDMA mobile communication system. In the FDD mode, data in an interleave memory in an interleaver is read at a predetermined read rate V.sub.R =V.sub.N, where V.sub.N is a normal rate. In the TDD mode, a transmitting carrier frequency is set identical to a receiving carrier frequency, and the read rate V.sub.R of the interleave memory and the write rate V.sub.W of the deinterleave memory are set at V.sub.R =V.sub.W >2V.sub.N. The transfer rate V.sub.T from column to column of the memories are set identical in the FDD mode and the TDD mode. This makes it possible to create a vacant duration while transferring from column to column, and to perform reception or transmission during the vacant duration. The remaining operation of the TDD mode is the same as the operation of the FDD mode.

Abstract: An expression vector cDNA library derived from senescent cells has been used to isolate cDNA clones that encode inhibitors of DNA synthesis. Such inhibitors play a role in cellular senescence and aging. Antisense nucleic acids reduce the inhibition of DNA synthesis.

Abstract: A high breakdown voltage semiconductor device is formed in a desired region on a semiconductor substrate. An impurity diffusion layer 32 is disposed at the center of the high breakdown voltage semiconductor device. The impurity diffusion layer 32 has a rounded or semi-circular configuration at both ends thereof having a particular curvature. The impurity diffusion layer 32 serves as drain. An impurity diffusion layer 33 is formed in the neighborhood and periphery of the impurity diffusion layer 32. The width of a portion 33b of the impurity diffusion layer 33 in abutting relation with the two semi-circular end portions of the impurity diffusion layer 32 is wider than that of a remaining portion 33a of the impurity diffusion layer 33 in abutting relation with longitudinal sides of the impurity diffusion layer 32. The rounded end portions of the impurity diffusion layer 32 have a larger curvature than the longitudinal side portions thereof.

Abstract: A mobile communications system including a plurality of communications networks, each of which has one location register (a home location register or gate location register) and one or more visitor registers. Each of the visitor registers is located in each one of visiting areas for storing information about a communication terminal. The location register stores the number of the visitor register of the visiting area in which the communication terminal is present, and the information about the communication terminal. When the communication terminal moves between the communications networks, the information about the communication terminal is transferred between the location registers. When the communication terminal moves between the visiting areas in the same communications network, the information about the communication terminal is provided from the location register to the visitor register.

Abstract: There is disclosed a process for producing alkenyl aromatic foams utilizing a combination of atmospheric and organic gases as blowing agent, preferably using greater than 30% by weight of atmospheric gas, and preferably also using a predetermined about of a masterbatch mix comprising a styrenic polymer, a rubbery block copolymer, and a solid blowing agent. Also disclosed are alkenyl aromatic foams produced by the process which exhibit increased densities, increased thermoforming capabilities, increased post-expansion properties, and increased retainment of the atmospheric and organic gases.

Abstract: Datapath elements 1.sub.1 to 1.sub.N can exchange data respectively with local memories 2.sub.1 to 2.sub.N through data buses 6.sub.1 to 6.sub.N, so that parallel operations can be performed. The data bus 6.sub.1, which is connected with one datapath element 1.sub.1, can be connected with the other data buses 6.sub.2 to 6.sub.N through an interconnection network 5, so that by activating one datapath element 1.sub.1 only, data exchange can be made with all of the local memories 2.sub.1 to 2.sub.N through the data buses 6.sub.1 to 6.sub.N and the interconnection network 5. Thus, the multiple datapath elements can perform the parallel operations with being related with the multiple local memories: and a simple configuration is employed such that one datapath element can access to any one of the local memories.

Abstract: An apparatus for restricting movement of a device inside a vehicle having a mounting surface therein, wherein the device has a first part and a second part. The apparatus comprising: a holder comprising a support having a first part and a second part; a first receptacle connected to the first part of the support and moveable between a first position and a second position, the first receptacle for receiving the first part of the device when in the first position; and a second receptacle connected to said second part of the support for receiving the second part of the device when the first receptacle is in the second position so that the device is secured by said holder; and a fastener connected to the holder for fastening the holder to the mounting surface of the vehicle so that movement of the device is restricted.

Abstract: This invention relates to a video coding decoding apparatus for effectively refreshing a video and for recovering degradation of a video caused by code error, in a short time. A video coding decoding apparatus according to the present invention comprises area shape detection (12) for dividing the picture in the single frame into a motion compensation area and the remaining area and then detecting a shape of the motion compensation area by distinguishing between the motion compensation area and the remaining area, and motion vector estimation (14) for estimating a resultant motion vector of the overall motion compensation area from a motion vector of each block in the motion compensation area. A refreshing operation is carried out from a starting point of the estimated resultant motion vector towards the direction of the estimated resultant motion vector in a motion compensation area.

Abstract: A method for forming twin-tub wells in a semiconductor substrate is disclosed. The present invention includes forming a first silicon oxide layer on the substrate. A silicon nitride layer is patterned on a portion of the first silicon oxide layer by a photoresist mask. First-type ions are implanted over the substrate not covered by the silicon nitride layer. Next, a second silicon oxide layer formed by a liquid phase deposition method is deposited on a portion of the first silicon oxide layer not covered by the silicon nitride layer. After the silicon nitride layer is removed, second-type ions are implanted over the substrate not covered by the second silicon oxide layer. Finally, the substrate is drived-in such that a first-type well and a second-type well are formed under the first silicon oxide layer.