摘要:
A process for reforming a hydrocarbon feed containing precursors of ethylbenzene, e.g., C8 isoalkane and/or C8 isoalkene precursors of ethylbenzene, that results in the formation of reduced amounts of ethylbenzene. The process is carried out in a catalytic reforming unit comprised of a plurality of operatively connected reactors comprising at least one lead reforming reactor and a tail reforming reactor. The process is carried out by reforming the feed in at least one lead reactor which contains a first reforming catalyst and a catalyst effective for converting ethylbenzene and further reforming the product of the lead reactor in the tail reactor that contains a second reforming catalyst.
摘要:
A process for reforming wherein ethylbenzene formed during the reforming is converted to xylenes. The process is carried out by reforming a feed containing precursors of ethylbenzene with a reforming catalyst under conditions effective to reform said feed; wherein the reforming catalyst is contained in a reactor which contains a second catalyst effective under said conditions to convert ethylbenzene to xylenes. The resulting product contains reduced amounts of ethylbenzene and increased amounts of xylenes.
摘要:
In a push-to-talk device having two processors where one of said processors is a radio chip and one of said processors is a microprocessor, a method and apparatus for synchronizing said microprocessor and said radio chip comprising the steps of: checking the status of a radio push-to-talk key on said radio chip when a user push-to-talk button is turned on or off on said microprocessor; if said user push-to-talk button is on and said radio push-to-talk key is off, performing the steps of: sending a command to said radio chip to turn on said radio push-to-talk key; and waiting for a response from said radio chip, and if said response indicates said radio push-to-talk key is on, remaining in this synchronized state, otherwise repeating said sending and waiting steps; if said user button is off and said radio push-to-talk key is on, performing the steps of: sending a command to said radio chip to turn off said radio push-to-talk key; and waiting for a response from said radio chip, and if said response indicates said radio push-to-talk key is off, remaining in this synchronized state, otherwise repeating said sending and waiting steps; if said user push-to-talk button is off and said radio push-to-talk key is off, remaining in this synchronized state; and if said user push-to-talk button is on and said radio push-to-talk key is on, remaining in this synchronized state.
摘要:
In a dual processor mobile device one processor is a radio processor and one processor is an application processor, the mobile device further including a polyphonic audio chip, a method and apparatus for audio control, the method having the steps of: connecting the polyphonic audio chip between the controller and a highly integrated audio codec; connecting the radio processor to the highly integrated audio codec; controlling the highly integrated audio codec from the radio processor; and coordinating between the application processor and the radio processor to allow the radio processor to control the highly integrated audio codec through the radio processor.
摘要:
In a push-to-talk device having two processors where one of the processors is a radio chip and one of the processors is a microprocessor, a method and apparatus for synchronizing the microprocessor and the radio chip includes the steps of checking the status of a radio push-to-talk key on the radio chip when a user push-to-talk button is turned on or off on the microprocessor; if the user push-to-talk button is on and the radio push-to-talk key is off, performing the steps of sending a command to the radio chip to turn on the radio push-to-talk key; and waiting for a response from the radio chip, and if the response indicates the radio push-to-talk key is on, remaining in this synchronized state, otherwise repeating the sending and waiting steps; if the user button is off and the radio push-to-talk key is on, performing the steps of sending a command to the radio chip to turn off the radio push-to-talk key; and waiting for a response from the radio chip, and if the response indicates the radio push-to-talk key is off, remaining in this synchronized state, otherwise repeating the sending and waiting steps; if the user push-to-talk button is off and the radio push-to-talk key is off, remaining in this synchronized state; and if the user push-to-talk button is on and the radio push-to-talk key is on, remaining in this synchronized state.
摘要:
In a push-to-talk device having two processors where one of said processors is a radio chip and one of said processors is a microprocessor, a method and apparatus for synchronizing said microprocessor and said radio chip comprising the steps of: checking the status of a radio push-to-talk key on said radio chip when a user push-to-talk button is turned on or off on said microprocessor; if said user push-to-talk button is on and said radio push-to-talk key is off, performing the steps of: sending a command to said radio chip to turn on said radio push-to-talk key; and waiting for a response from said radio chip, and if said response indicates said radio push-to-talk key is on, remaining in this synchronized state, otherwise repeating said sending and waiting steps; if said user button is off and said radio push-to-talk key is on, performing the steps of: sending a command to said radio chip to turn off said radio push-to-talk key; and waiting for a response from said radio chip, and if said response indicates said radio push-to-talk key is off, remaining in this synchronized state, otherwise repeating said sending and waiting steps; if said user push-to-talk button is off and said radio push-to-talk key is off, remaining in this synchronized state; and if said user push-to-talk button is on and said radio push-to-talk key is on, remaining in this synchronized state.
摘要:
A monolithic semiconductor structure of a laser and a field effect transistor applicable to telecommunications comprises, on a semiinsulating substrate, a semiconductor layer of Ga.sub.1-x Al.sub.x As, a N-doped semiconductor layer of Ga.sub.1-y Al.sub.y As, a semiconductor layer of Ga.sub.1-z Al.sub.z As, in which x and z vary from 0.2 to 0.7 and y from 0 to 0.15 and a GaAs semiconductor layer. In these four layers are formed one type P region and two type N regions, the type P region and one of the type N regions defining between them the active zone of the laser and the two type N regions defining between them the active zone of the transistor, respectively forming the transistor source and drain. The P region of the laser is equipped with an electrode and the transistor source and drain with ohmic contacts. A process for making the structure as also disclosed.
摘要翻译:可应用于通信的激光器和场效应晶体管的单片半导体结构在半绝缘衬底上包括Ga 1-x Al x As的半导体层,Ga 1-y Al y As的N掺杂半导体层,Ga 1-z Al zAs的半导体层, 其中x和z从0.2变化到0.7,y从0到0.15以及GaAs半导体层。 在这四个层中形成一个P型区域和两个N型区域,P型区域和N型区域中的一个在它们之间限定激光器的有效区域和两个N型区域之间限定它们的有效区域 晶体管分别形成晶体管源极和漏极。 激光器的P区域配备有电极,晶体管源极和漏极具有欧姆接触。 还公开了制造结构的方法。
摘要:
In a dual processor mobile device one processor is a radio processor and one processor is an application processor, the mobile device further including a polyphonic audio chip, a method and apparatus for audio control, the method having the steps of: connecting the polyphonic audio chip between the controller and a highly integrated audio codec; connecting the radio processor to the highly integrated audio codec; controlling the highly integrated audio codec from the radio processor; and coordinating between the application processor and the radio processor to allow the radio processor to control the highly integrated audio codec through the radio processor.
摘要:
A method and assembly for utilizing open-cell cellular solid material in a component separation unit to separate one or more process streams into component process streams having desired compositions. A method and assembly for using said open-cell cellular solid material to separate process streams into desired component process streams in a component separation unit, wherein the open-cell cellular solid material can include oxides, carbides, nitrides, borides, ceramics, metals, polymers, and chemical vapor deposition materials.