Abstract: Techniques and architectures for preventing Sybil attacks are provided. A node authenticates to a local certificate authority associated with a social networking group. The local certificate authority issues an encrypted certificate with a secret to the node. The node then makes a request to participate in another external group via a remote certificate authority. The remote certificate authority verifies the secret and grants permission to the node to participate in the external group. Also, a dynamic architecture permits local nodes in a social networking group self organize with some nodes becoming local certificate authorities and others becoming regular participants.

Abstract: In methods and systems that may facilitate detecting abnormal operation in a process plant, values of a process variable are analyzed to determine whether they significantly deviate from expected values. If there is a significant deviation, an indicator may be generated. Analyzing the process variable may include, for example, determining whether a number of values of the process variable are increasingly deviating from expected values, or determining whether the process variable is cycling. Analyzing the process variable may also include, for example, processing and analyzing the process variable to determine whether the process is in a normal state, one or more abnormal states, or an indeterminate state.

Abstract: A system and method is provided for distributing transactional advertisement from a distribution site over a network to online publishers. The transactional data items are rendered by the online publishers, with control elements provided from the distribution site, to control use of the transactional data items on the user terminal.

Abstract: The present invention provides a reusable transition metal complex catalyst useful for the preparation of high pure quality 3,3?-diaminobenzidine and its analogues. The present invention also provides to a process for the preparation of a reusable transition metal complex catalyst. The present invention further provides a process for the preparation of 3,3?-diaminobenzidine (DAB) or 3,3?,4,4? Tetraminobiphenyl (TAB) using reusable transition metal complex catalyst. The high quality 3,3?-diaminobenzedine (DAB) and its analogues are prepared by coupling 4-halo-2-nitroaniline to 3,3?-dinitrobenzidine (DNB) using transition metals as catalysts followed by reduction of 3,3?-dinitrobenzidine to the corresponding substituted 3,3?-diaminobenzidine of formula 1 in high yields.

Abstract: A system for preventing abnormal situations in process plants is provided. A polynomial regression model is employed to predict values of a monitored variable based on measured samples of a load variable. An abnormal situation is detected when a predicted value of the monitored variable differs from a measured value of the monitored variable by more than a predetermined amount. The system employs one or more algorithms for automatically determining an optimal order or degree of the polynomial regression model.

Abstract: The present invention relates to a bioenhancing/bioavailability-facilitating composition comprising: an effective amount of an extract and/or at least one bioactive fraction from Cuminum cyminum; one or more additive selected from drugs, nutrients, vitamins, nutraceuticals, herbal drugs/products, micro nutrients, antioxidants along with pharmaceuticaly acceptable additives/excipient, and optionally, an effective amount of piperine or extract/fraction of piper nigrum or piper longum; and a process for the preparation of such extracts and active fractions from plant Cuminum cyminum.

Abstract: The present invention relates to the use of extracts of Carum carvi as bioenhancers, either alone or in combination with piperine or Zingiber officinale extract to improve the bioavailability of a wide variety of drugs.

Abstract: A data distribution system which includes business groups, a client system and a main database system is described. Coupons and coupon data may be exchanged between the business groups, the client system and the main database system. Each coupon being exchanged may include one or more fraud protection features that can neither be altered nor tampered by users, consumers or retailers.

Abstract: The present invention relates to a novel source of microorganism for production of Camptothecin and related camptothecinoids. The invention also discloses its isolation, screening for Camptothecin production, growth, fermentation requirements and chemical analysis of Camptothecin (camptothecinoids).

Abstract: A method and system for detecting and/or predicting abnormal solids buildup in a main fractionator bottom of a fluid catalytic cracking system measures one or more process parameters of the fluid catalytic cracking system (such as a differential pressure across a reactor cyclone, a noise after the main fractionator bottom, a heat transfer at the steam generator, and/or a differential pressure across the main fractionator) and determines abnormal solids buildup when the measured process parameter(s) changes significantly from a baseline value. The method and system implements algorithms using computing devices to detect or predict an abnormal condition based on the change in the process parameter.

Abstract: A method and system for detecting and/or predicting abnormal levels of catalyst loss in a fluid catalytic cracking unit. The method and system measures a differential pressure across portions of a fluid catalytic cracker, such as a reactor cyclone or a regenerator cyclone, and determines abnormal catalyst loss when the differential pressure changes significantly from a baseline differential pressure. The claimed method and system implements algorithms using computing devices to detect or predict an abnormal condition based on the change in a monitored differential pressure in a fluid catalytic cracking unit.

Abstract: A system and method for detecting abnormal operation of a hydrocracker includes a model to model the hydrocracker. The model may be configurable to include one or more regression models corresponding to different operating regions of the portion of the hydrocracker. The system and method may also determine if a monitored temperature difference variable deviates significantly from the temperature difference variable predicted by the model. If there is a significant deviation, this may indicate an abnormal operation.

Abstract: A system and method to facilitate the monitoring and diagnosis of a process control system and any elements thereof is disclosed with a specific premise of abnormal situation prevention in a coker heater of a coker unit in a product refining process. Monitoring and diagnosis of faults in a coker heater includes statistical analysis techniques, such as regression. In particular, on-line process data is collected from an operating coker heater in a coker area of a refinery. A statistical analysis is used to develop a regression model of the process. The output may use a variety of parameters from the model and may include normalized process variables based on the training data, and process variable limits or model components. Each of the outputs may be used to generate visualizations for process monitoring and diagnostics and perform alarm diagnostics to detect abnormal situations in the process.

Abstract: In methods and systems that may facilitate detecting abnormal operation in a process plant, values of a process variable are analyzed to determine whether they significantly deviate from expected values. If there is a significant deviation, an indicator may be generated. Analyzing the process variable may include, for example, utilizing a plurality of thresholds determined based on statistics of the process variable. Analyzing the process variable may also include, for example, determining whether a first number of values of the process variable are in a first region, and whether a second number of values are in a second region.

Abstract: In methods and systems that may facilitate detecting abnormal operation in a process plant, values of a process variable are analyzed to determine whether they significantly deviate from expected values. If there is a significant deviation, an indicator may be generated. Analyzing the process variable may include, for example, determining whether a number of values of the process variable are increasingly deviating from expected values, or determining whether the process variable is cycling. Analyzing the process variable may also include, for example, processing and analyzing the process variable to determine whether the process is in a normal state, one or more abnormal states, or an indeterminate state.

Abstract: The present invention relates to a bioenhancing/bioavailability-facilitating composition comprising: an effective amount of an extract and/or at least one bioactive fraction from Cuminum cyminum; one or more additive selected from drugs, nutrients, vitamins, nutraceuticals, herbal drugs/products, micro nutrients, antioxidants along with pharmaceutically acceptable additives/excipient, and optionally, an effective amount of piperine or extract/fraction of piper nigrum or piper longum; and a process for the preparation of such extracts and active fractions from plant Cuminum cyminum.

Abstract: A multimedia enabled portable communication device and method, including a real-time processor (110) and an application processor (120) communicably coupled to a synchronization entity (112). In one embodiment the synchronization entity is an H.324 entity integrated with the real-time processor. The synchronization entity synchronizes a video data stream from the application processor with an audio data stream from the real-time processor based on delay information.

Abstract: A versatile cavity actuator. The versatile cavity actuator includes a cavity having one or more polymer-based sidewalls. An energetic material is disposed therein. A heater is disposed on or within the cavity. In a specific embodiment, the cavity includes a thermally insulating base positioned beneath the heater, which is positioned near the bottom of the cavity. The polymer-based sidewalls are constructed from a photo-curable epoxy, which is disposed on a substrate via microelectromechanical processes. The sidewalls are angled or parabolic and are constructed via a low-temperature lithographic spin process compatible with post integrated circuit processing.

Abstract: The invention relates to the isolation and preparation of an active fraction from plant Cuminum cyminum, its further purification and standardization as chemically defined entity (ies) with their intended use as drug bioavailability enhancer for the drugs belonging to therapeutic categories such as antimicrobial, antifungal, anti-viral, antitubercular, antileprosy, anti-inflammatory, antiarthritic, cardiovascular, antihistaminics, respiratory distress relieving drugs, immunosuppressants, anti-ulcerogenic, anti-cancer, CNS drugs, corticosteroids, nutraceuticals in compositions to be administered orally/parenterally, topically, inhalations (including nebulizers), rectally, vaginally in human beings and/or veterinary conditions.

Abstract: The present invention is a cost-effective and compact micro-spectrometer for rapid detection of chemical compounds in the low concentration limit. The invention provides for significantly higher sensitivity compared to conventional spectroscopy techniques (continuous wave and Fourier transform methods) by placing the sample within a high Finesse etalon cavity. An Optical Spectrum Analyzer (OSA) built on either continuous wave (CW-SPEC), or Fourier Transform Absorption Spectroscopy (FT-SPEC) is used to monitor the spectrum from the etalon cavity/sample combination during tuning of the etalon cavity˜this information is then used to reconstruct the absorption spectrum.