Patent application number | Description | Published |
20100036170 | Alkylene oxide purification processes and systems - Processes and systems for purifying ethylene oxide, including introducing a feed stream including ethylene oxide to a heat exchanger to heat the feed stream, feeding the heated feed stream to a distillation apparatus base below a first stage, removing from the distillation apparatus an impurity fraction as a top exit stream from the distillation apparatus located at a top take-off on the distillation apparatus, removing from the distillation apparatus an ethylene oxide stream of 99.7 weight percent purity, based on the total weight of the ethylene oxide stream, from the distillation apparatus, and removing from the distillation apparatus an aldehyde enriched fraction as a bottom stream from the distillation apparatus, where the aldehyde enriched fraction is fed directly to a glycol reactor. | 02-11-2010 |
20100267972 | METHOD OF ACHIEVING AND MAINTAINING A SPECIFIED ALKYLENE OXIDE PRODUCTION PARAMETER WITH A HIGH EFFICIENCY CATALYST - An improved method of operating an alkylene oxide production process to achieve and maintain a desired alkylene oxide production parameter is shown and described. The method comprises adjusting one of an overall catalyst chloriding effectiveness parameter or reaction temperature to obtain the desired alkylene oxide production parameter. | 10-21-2010 |
20100267973 | METHODS FOR ENHANCING THE EFFICIENCY OF RHENIUM-PROMOTED EPOXIDATION CATALYSTS AND EPOXIDATION METHODS UTILIZING THESE - A method for enhancing the efficiency of a rhenium-promoted epoxidation catalyst is provided. Advantageously, the method may be carried out in situ, i.e., within the epoxidation process, and in fact, may be carried out during production of the desired epoxide. As such, a method for the epoxidation of alkylenes incorporating the efficiency-enhancing method is also provided, as is a method for using the alkylene oxides so produced for the production of 1,2-diols, 1,2-carbonates, 1,2-diol ethers, or alkanolamines. | 10-21-2010 |
20100267974 | SIMPLIFIED METHOD FOR PRODUCING ALKYLENE OXIDES WITH A HIGH EFFICIENCY CATALYST AS IT AGES - A simplified method of operating an alkylene oxide production process that utilizes a high efficiency silver catalyst is shown and described. The method accounts for declining catalyst activity that occurs as the catalyst ages by making alternating changes to the reaction temperature and an overall chloriding effectiveness parameter. | 10-21-2010 |
20130245296 | METHOD OF REDUCING THE VALUE OF AN ALKYLENE OXIDE PRODUCTION PARAMETER IN A PROCESS OF MAKING AN ALKYLENE OXIDE USING A HIGH EFFICIENCY CATALYST - Methods of reducing the value of an alkylene oxide production parameter (such as alkylene oxide production rate) in a process of making an alkylene oxide by reacting an alkylene and oxygen over a high efficiency catalyst are shown and described. One method comprises reducing the concentration of oxygen in the reactor feed gas to reduce the value of the alkylene oxide production parameter. | 09-19-2013 |
20140012022 | PROCESS FOR CONDITIONING A HIGH EFFICIENCY ETHYLENE OXIDE CATALYST - A process for conditioning a high efficiency silver catalyst used to manufacture ethylene oxide from ethylene, oxygen, and at least one organic chloride is described. A non-reactive conditioning gas comprising at least one of ethylene, oxygen, and a ballast gas is introduced to the catalyst at a conditioning temperature ranging from 150° C. to 180° C. for a selected period of at least 4 hours. | 01-09-2014 |
20140316150 | METHOD OF REDUCING OR MAINTAINING THE VALUE OF AN ALKYLENE OXIDE PRODUCTION PARAMETER IN A PROCESS OF MAKING AN ALKYLENE OXIDE USING A HIGH EFFICIENCY CATALYST - Methods of reducing or maintaining the value of an alkylene oxide production parameter (such as alkylene oxide production rate) in a process of making an alkylene oxide by reacting an alkylene and oxygen over a high efficiency catalyst are shown and described. One method comprises reducing the concentration of oxygen in the reactor feed gas to reduce or maintain the value of the alkylene oxide production parameter. | 10-23-2014 |
20140323295 | METHOD OF FORMULATING ALKYLENE OXIDE CATALYST IN RELATION TO CATALYST REFERENCE PROPERTIES - Methods of preparing a second high-efficiency, rhenium-promoted silver catalyst for producing alkylene oxide from an alkylene based on a first catalyst are disclosed and described. In accordance with the disclosed methods, the first and second catalysts include at least one promoter that includes a rhenium promoter. The target catalyst concentrations of one or more promoters of the at least one promoter on the second catalyst are determined based on the values of a catalyst reference property for the two catalysts and the concentration of the one or more promoters of the at least one promoter on the first catalyst. Suitable catalyst reference properties include carrier specific surface area and silver specific surface area. Reaction systems utilizing the first and second catalysts are also described. | 10-30-2014 |
Patent application number | Description | Published |
20110151863 | Automated Communications Device Field Testing, Performance Management, And Resource Allocation - Field testing, performance monitoring, and resource management are performed via a communications device, automatically and autonomously, without user intervention. Abnormal conditions are automatically detected while the communications device is performing a service and adjustments are automatically made to network resources in order to improve service performance. Upon initiation of a request for service (e.g., IM, MMS, SMS, etc.), the communications device automatically begins to monitor the performance of the service session (e.g., send time, receive time, etc.). During or after the service session, the communications device stores the performance data associated with the performance of the service. The performance data is analyzed in accordance with a subscriber's user profile information, to detect any problems with the service. If problems are detected, necessary adjustments and/or reallocation of resources are made automatically and autonomously, without user intervention. | 06-23-2011 |
Patent application number | Description | Published |
20110275092 | METHOD FOR DETECTING BIOLOGICAL MARKERS BY AN ATOMIC FORCE MICROSCOPE - A method for detecting biological markers involves preparing sample slices using a hard granular labeling material such as hard nano-gold granular material. The sample slices are fixed to sample patches. The sample is scanned using the atomic force microscope (AFM) in tapping mode to collect the height, amplitude and phase data of the hard granular material. The hard labeling material is mainly determined through changes in discrepancies in phase diagram color, while height and amplitude diagrams are used to provide auxiliary evidence of sample morphological features. Integrating these data with the state of the biological target object can thus determine the existence of a marked object. | 11-10-2011 |
20140241403 | Method, Apparatus, Receiver, Computer Program and Storage Medium for Joint Detection - A method for performing joint detection includes adjusting a ranking order of codes in a matched filtering result, and a ranking order of column vectors in a system submatrix according to the power. The joint detection is performed using an adjusted matched filtering result and an adjusted system submatrix, and acquires demodulated signals corresponding to the codes. The codes that have high power will be demodulated first. This ensures accuracy of demodulation, inhibits erroneous propagation effect, and improves accuracy of the joint detection. | 08-28-2014 |
20140294127 | Method, Apparatus, Receiver, Computer Program and Storage Medium for Joint Detection - The present invention relates a method, apparatus, receiver, computer program for joint detection. In the method, it is firstly determined if whether a number of original active codes is beyond a predefined threshold or not, and when the number of the original active codes is beyond the predefined threshold and a strong interference code exists in the active codes corresponding to intra-frequency adjacent cells, it is to apply an interference cancellation to a receive signal, cancel MAI caused by a strong interference signal corresponding to the strong interference code, and perform a joint detection by utilizing a matched filtering result of a remaining signal after the interference cancellation for the joint detection. According to at least one embodiment of the present invention, when there is large interference in the intra-frequency adjacent cells and the number of the active codes is beyond a maximum threshold, the joint detection performance is improved. | 10-02-2014 |
20140348136 | Method, Apparatus, Receiver, Computer Program and Storage Medium for Joint Detection - A method, apparatus, receiver, computer program and storage medium for joint detection are disclosed. The joint detection method includes categorizing interference signals based on level of interference so as to obtain a strong interference signal, cancelling the strong interference signal from a received signal, and performing a joint detection by utilizing a matched filtering result of a remaining signal. In one embodiment, it is to firstly determine whether a strong interference codes corresponding to an intra-frequency adjacent cell exists in an active code list or not, recovering a strong interference signal transmitted by a Node B if the strong interference codes exists, applying an interference cancellation to a received signal received by a receiver so as to obtain a matched filtering result of a remaining signal derived by subtracting the strong interference signal from the received signal, performing a joint detection by utilizing the matched filtering result of the remaining signal, and outputting a demodulated result. In at least one embodiment, the computation complexity of the joint detection is reduced, and the accuracy of the joint detection is improved. | 11-27-2014 |
Patent application number | Description | Published |
20130006950 | Method for Attaching Partition ONLINE to Range Partitioned Table - Method for attaching one or more tables online to a range partitioned table, includes: starting a child transaction; obtaining an exclusive lock on a source table; obtaining an intent exclusive lock on a target table; soft invalidating queries on the target table where compiled form of queries are cached for reuse; attaching the source table(s) to the target table as a new partition(s) of the target table; modifying indices and table structure of the target table to reflect the attaching of the new partition; committing the child transaction; and releasing the exclusive lock and the intent exclusive lock, where concurrently running queries over the target table continue to run without considering the partition until the intent exclusive lock and the exclusive lock are released. Queries on the target table only consider existing partitions when the attaching is in progress. The new partition is available once the attach operation is complete. | 01-03-2013 |
20140372411 | ON-THE-FLY ENCODING METHOD FOR EFFICIENT GROUPING AND AGGREGATION - Embodiments include a method and computer program product for encoding data while it is being processed as part of a query is provided. The method includes receiving a query request and determining a set of values associated with data to be encoded for completing the query request. The method also includes encoding those values such that any subsequent processing operations can be performed on the encoded values to complete the requested query. After performing the subsequent processing operations to complete the requested query, each value is decoded back to its original value. | 12-18-2014 |
20140372470 | ON-THE-FLY ENCODING METHOD FOR EFFICIENT GROUPING AND AGGREGATION - Embodiments include a system for encoding data while it is being processed. The system includes a processor, an encoder and a decoder. The processor is configured to process a query request by determining a set of values. The encoder is configured for encoding the set of values, such that a subsequent processing operation can be performed on the encoded values. The processor performs the subsequent processing operations. The decoder is configured for decoding each value back to its value prior to being encoded upon completion of the processor completing the requested query. | 12-18-2014 |
20140379985 | MULTI-LEVEL AGGREGATION TECHNIQUES FOR MEMORY HIERARCHIES - Embodiments include method, system, and computer program product for providing aggregation hierarchy that is related memory hierarchies. In one embodiment, the method includes determining capacity of a first level memory of a memory hierarchy for processing data relating to completion of an aggregation process and generating a per thread local look-up table in said first level memory upon determining said capacity. Upon the first level memory reaching capacity, a plurality of per thread partitions to store remaining data to complete the aggregation process in a second level memory of the memory hierarchy is generated such that each of said per-thread partitions includes an identical amount of data portion on each thread. The method also includes storing the per thread partitions in said second level memory and providing a single global look up table for each of the identical data portions. | 12-25-2014 |