摘要:
Bis(salicylaldiminato)titanium complex with optionally substituted phenyl or cyclohexyl on nitrogen catalyzes highly syndiospecific polymerization of propylene. Syndiotactic polypropylene with defects of the type rmr having [rrrr] content greater than 0.70 and block copolymer containing block(s) of the syndiotactic polypropylene and block(s) of poly(ethylene-co-propylene) and/or poly(alpha-olefin-co-propylene) are obtained. Certain of the catalysts provide living polymerization. Living olefin polymers and olefin terminated oligomers and polymers are also products.
摘要:
Bis(salicylaldiminato)titanium complex with optionally substituted phenyl or cyclohexyl on nitrogen catalyzes highly syndiospecific polymerization of propylene. Syndiotactic polypropylene with defects of the type rmr having [rrrr] content greater than 0.70 and block copolymer containing block(s) of the syndiotactic polypropylene and block(s) of poly(ethylene-co-propylene) and/or poly(alpha-olefin-co-propylene) are obtained. Certain of the catalysts provide living polymerization. Living olefin polymers and olefin terminated oligomers and polymers are also products.
摘要:
Bis(salicylaldiminato)titanium complex with optionally substituted phenyl or cyclohexyl on nitrogen catalyzes highly syndiospecific polymerization of propylene. Syndiotactic polypropylene with defects of the type rmr having [rrrr] content greater than 0.70 and block copolymer containing block(s) of the syndiotactic polypropylene and block(s) of poly(ethylene-co-propylene) and/or poly(alpha-olefin-co-propylene) are obtained. Certain of the catalysts provide living polymerization. Living olefin polymers and olefin terminated oligomers and polymers are also products.
摘要:
Bis(salicylaldiminato)titanium complex with optionally substituted phenyl or cyclohexyl on nitrogen catalyzes highly syndiospecific polymerization of propylene. Syndiotactic polypropylene with defects of the type rmr having [rrrr] content greater than 0.70 and block copolymer containing block(s) of the syndiotactic polypropylene and block(s) of poly(ethylene-co-propylene) and/or poly(alpha-olefin-co-propylene) are obtained. Certain of the catalysts provide living polymerization. Living olefin polymers and olefin terminated oligomers and polymers are also products.
摘要:
The communication apparatus includes: a channel estimating unit for acquiring a channel estimation value of a channel between the communication apparatus and a cell base station of a cell in which the communication apparatus is located; a transmitter transmitting the channel estimation value or information based on the channel estimation value to the cell base station; a receiver receiving coordinated multipoint (CoMP) message from the cell base station, the CoMP message indicates the CoMP transmission mode, the codebook or precoding matrix used by the cell base station, and the codebook or precoding matrix used by a coordinated base station that coordinates with the cell base station; a channel matrix forming unit for acquiring a channel matrix according to the CoMP message; and a decoder decoding received signals according to the channel matrix and the CoMP message.
摘要:
A base station and a mobile station, the base station includes common antennas configured to transmit signals to all mobile stations (UEs) served by the base station; a special antenna to transmit a signal to a UE which is served by the base station and supports the special antenna; a sub-frame selecting unit to select a sub-frame for transmitting a common pilot of the special antenna in the current frame; a resource block (RB) selecting unit to select a RB for transmitting the common pilot, in the sub-frame for transmitting the common pilot selected by the sub-frame selecting unit; a notifying unit to notify the sub-frame and RB for transmitting the common pilot antenna selected by the UE supporting the special antenna in a cell; and a transmitting unit to transmit a signal having the common pilot in the RB selected by the RB selecting unit.
摘要:
A method for multiple-input multiple-output (MIMO) collaborative communication in a wireless communication system includes at least one user equipment and M base stations performing collaborative communication with the user equipment. Here, M is an integer that is greater than or equal to 2. The method includes the following processes for each user equipment: a first level of MIMO pre-coding process is performed for each base station to acquire each first level of pre-coding matrix corresponding to each base station; a second level to the X-th level of MIMO pre-coding process is performed sequentially to acquire the second level to the X-th level of pre-coding matrices of the corresponding base stations. Here, X is an integer that is greater than or equal to 2. A pre-coding device, a user equipment and a wireless communication system related to the method are also provided.
摘要:
Embodiments of the invention generally include multicomponent catalyst systems, polymerization processes and reactor blends formed by the processes. The multicomponent catalyst system generally includes a first catalyst component and a second catalyst component, wherein the second catalyst component is different from the first catalyst component.
摘要:
A method and apparatus are described for determining a threshold, including selecting a desired false result probability, and selecting a threshold value from a threshold table corresponding to the desired false result probability. Also described are a method and apparatus for determining a threshold corresponding to a desired false result probability, including calculating a false result probability, calculating a difference value between the calculated false result probability and the desired false result probability, comparing the difference value to a first predetermined value and comparing the difference value to a second predetermined value if a result of the first comparing act is positive.
摘要:
A system and method for quality of experience estimation are provided. A method for communications device operations includes selecting a portion of a media content stream, processing the portion to produce a processed portion, generating a signature from the processed portion, transmitting the signature, and transmitting the media content stream.