摘要:
The present invention relates to a fiber optic telecommunication cabinet for use in fiber optic telecommunication networks. The fiber optic telecommunication cabinet comprises a base and a housing. The housing defines an internal cavity from an open first end that extends longitudinally to a closed second end. The base is configured for attachment to the open first end of the housing to provide an enclosed configuration. The base has a plurality of ports passing through the base to allow passage telecommunication cables into the fiber optic cabinet. A center support column extends from the base from the base. The fiber optic cabinet includes a plurality of patch panel frames disposed radially around the center support column and a patch cord management plate attached to the center support column above the plurality of patch panel frames.
摘要:
An apparatus includes a magnetic layer, a heat sink layer, and a thermal resistor layer between the magnetic layer and the heat sink layer. The apparatus may be configured as a thin film structure arranged for data storage. The apparatus may also include an interlayer positioned between the magnetic layer and the thermal resistor layer.
摘要:
An image processing apparatus includes a preview generating unit configured to generate, based on image data, a preview image that is expected to be output; an attribute extracting unit configured to extract an attribute of at least one portion in the image data; a display unit configured to display the preview image; a position-information obtaining unit configured to obtain position information indicative of a position of a specified portion in the preview image; and a processing unit configured to perform, on the image data, a process according to an attribute that corresponds to the position.
摘要:
This invention relates to a refuse landfill leachate wastewater treatment system comprising a collection well, an adjustment tank, a filter, a comprehensive treatment system having a multi-stage anoxic/aerobic pool and a membrane biological reactor. The process of treatment is: waste water enters a adjustment tanke in which water quality and quantity are adjusted; subsequently, enters a filter, the water discharged from the filter and enters a comprehensive treatment system having a multi-stage anoxic/aerobic pool and a membrane biological reactor, wherein waster water is bio-chemically treated to remove the organic substances, nitrogen and ammonia, and then the wastewater is discharged into a catalyzed oxidation tower; the organic substance in waste water is oxidized on effect of ozone and under the existing catalyst function and then the biochemical capacity thereof is enhanced; and then the catalyzed and oxidized waste water enters carbon filter pool, the remaining contaminated matter can be further removed by degradation of the anoxic oxidation of the biological membrane on the packing material in pool, then the output water meets the requirement of National Standard or other relevant industrial standards.
摘要:
A modular framework for data import/export in an application that allows modules/components to be independently developed for importing and exporting data related to specific entities, including the handling of dependencies between entities. The framework is metadata driven which allows new entities to be introduced in the application with new modules for importing/exporting data related to those entities, without updating modules for exporting existing entities. Each type of entity is defined with a schema that represents the logical entity such that the entity is agnostic as to how the entity data is stored in database tables. A master configuration file is created for the application that lists each entity that can be imported or exported by the application, and defines how the framework imports or exports the business entity. Additionally, dynamic batching is provided to divide large datasets into multiple batches for suitable consumption by consumers of the exported data.
摘要:
A system and method for detecting a rotor fault condition in an AC induction machine is disclosed. The system includes a processor programmed to receive voltage and current data from an AC induction machine, generate a current frequency spectrum from the current data, and identify rotor-fault related harmonics in the current frequency spectrum. The processor is also programmed to calculate a fault severity indicator using the voltage and current data, identified rotor-fault related harmonics, and motor specifications, analyze the fault severity indicator to determine a possibility of rotor fault. The processor generates an alert based on the possibility of rotor fault.
摘要:
A system and method for determining rotor speed of an AC induction machine is disclosed. The system is programmed to estimate a rotor speed of the induction machine according to a linear speed estimation algorithm and based on name plate information (NPI) of the induction machine and parameters of the AC induction machine during operation thereof. The rotor speed estimation system is also programmed to estimate a rotor speed of the AC induction machine according to a frequency-domain signal processing algorithm and determine if the rotor speed estimated thereby is valid. If the rotor speed estimated by the frequency-domain signal processing algorithm is valid, then a tuned rotor speed of the AC induction machine is estimated according to the linear speed estimation algorithm and based, in part, on the rotor speed estimated by the frequency-domain signal processing algorithm.
摘要:
A system and method for determining electric motor efficiency includes a monitoring system having a processor programmed to determine efficiency of an electric motor under load while the electric motor is online. The determination of motor efficiency is independent of a rotor speed measurement. Further, the efficiency is based on a determination of stator winding resistance, an input voltage, and an input current. The determination of the stator winding resistance occurs while the electric motor under load is online.
摘要:
A system and method for determining stator winding resistance in an AC motor is disclosed. The system includes a circuit having an input connectable to an AC source and an output connectable to an input terminal of an AC motor. The circuit includes at least one contactor and at least one switch to control current flow and terminal voltages in the AC motor. The system also includes a controller connected to the circuit and configured to modify a switching time of the at least one switch to create a DC component in an output of the system corresponding to an input to the AC motor and determine a stator winding resistance of the AC motor based on the injected DC component of the voltage and current.