Abstract: Embodiments of the disclosure are drawn to apparatuses and methods for bad row mode. The memory may prevent proper access operations (e.g., read operations) from being performed on a selected bad row of the memory as part of a bad row mode. For example, the memory may store a bad row address and when an access address matches the bad row address, may suppress one or more signals, change data read from the address, or combinations thereof. The bad row mode may be used to provide a positive control for post package repair (PPR) operations on the memory. A controller may enter the memory into bad row mode and then test the memory to determine if the selected bad row can be located and repaired via PPR.

Abstract: An automatic sensitivity adjusting analog ultrasonic sensor includes an ultrasonic transducer, and a front end adjustable gain amplifier that amplifies the received ultrasonic signal from the transducer. A processor generates a carrier signal and a heterodyning circuit combines the carrier signal and the amplified ultrasonic signal to form a modulated signal spectrum from which an audio spectrum signal is generated. The processor further monitors the amplitude level of the audio spectrum signal and executes an auto sensitivity adjustment algorithm that automatically adjusts the sensitivity (the gain) of the analog front end amplifier down if the amplitude is above a preset upper threshold or up if the amplitude is below a present lower threshold. The processor may also further monitors the amplitude level of the ultrasonic signal level directly from the front end adjustable gain amplifier and execute the auto sensitivity adjustment algorithm as required.

Abstract: An apparatus and method for detecting an initial lubrication of a moving component including an ultrasonic sensor for detecting an ultrasonic output signal from the moving component and a processor for operating on the output signal. The processor determines if there has been an initiation of a lubrication operation. After identifying the initiation of the lubrication operation, the processor monitors the ultrasonic output signal received from the ultrasonic sensor to detect a momentary increase in the amplitude of the ultrasonic output signal above a level that indicates a need for lubrication, and which is indicative of an initial interaction between a lubricant and the moving component. Upon detecting the momentary increase in the amplitude, the processor tracks a progress of the lubrication operation by detecting for a sustained decrease in the amplitude of the ultrasonic output signal received from the ultrasonic sensor.

Abstract: An automatic sensitivity adjusting analog ultrasonic sensor includes an ultrasonic transducer, and a front end adjustable gain amplifier that amplifies the received ultrasonic signal from the transducer. A processor generates a carrier signal and a heterodyning circuit combines the carrier signal and the amplified ultrasonic signal to form a modulated signal spectrum from which an audio spectrum signal is generated. The processor further monitors the amplitude level of the audio spectrum signal and executes an auto sensitivity adjustment algorithm that automatically adjusts the sensitivity (the gain) of the analog front end amplifier down if the amplitude is above a preset upper threshold or up if the amplitude is below a present lower threshold. The processor may also further monitors the amplitude level of the ultrasonic signal level directly from the front end adjustable gain amplifier and execute the auto sensitivity adjustment algorithm as required.

Abstract: A bearing lubrication system includes an ultrasonic signal detector affixed in proximity or in contact with a set of bearings and a control unit. The control unit including (a) a lubrication dispenser fixed to a structure connected with the set of bearings and having an output for dispensing lubricant to the set of bearings through a controllable valve; and (b) a transceiver affixed in proximity to the set of bearings, said transceiver transmitting the ultrasonic signal to a location remote from the set of bearings. A hub computer is at the remote location that receives the ultrasonic signal from the transceiver. When the hub computer determines that the ultrasonic signal is above a local predetermined threshold the hub computer generates a local valve open/close signal and sends it back to the transceiver of the control unit.

Abstract: An ultrasonic mechanical defect and/or fault detection and monitoring system includes at least one ultrasonic fault detection device configured to measure ultrasonic emissions from an object under evaluation and to generate an output signal in response thereto. The system further includes at least one processor configured by code to receive the generated output signal; access a library of stored signal patterns; compare the generated output signal against the library of stored signal patterns; and generate an alert where the generated output signal matches at least one of the library of stored signal patterns.

Abstract: An ultrasonic mechanical defect and/or fault detection and monitoring system includes at least one ultrasonic fault detection device configured to measure ultrasonic emissions from an object under evaluation and to generate an output signal in response thereto. The system further includes at least one processor configured by code to receive the generated output signal; access a library of stored signal patterns; compare the generated output signal against the library of stored signal patterns; and generate an alert where the generated output signal matches at least one of the library of stored signal patterns.

Abstract: The present invention is directed an ultrasonic frequencies fault detecting apparatus. The present invention uses high frequency ultrasonic energy signals to analyze bearings and determine the presence of faults therein. The ultrasonic return signals are heterodyned (by amplitude demodulation) into the audio spectrum for purposes of audio detection. In addition, a FFT spectrum of the signal is displayed on a monitor for more accurate results. According to the present invention software is used to automatically analyze the FFT spectrum by comparing the current spectrum with stored spectrums of known bearing conditions as modified based on the rotary speed of the bearing and the number of balls. Once a defect in a bearing has been located in this manner using automated FFT analysis, an operator can then use a device, such as a calibrated lubricant dispenser, to effectuate maintenance and/or repair.

Abstract: A lubrication dispensing apparatus for lubricating a device with moving parts includes a lubricant reservoir, a lubricant dispenser for dispensing lubricant from the lubricant reservoir, an ultrasonic detection module which detects the amplitude of ultrasonic energy emitted by said device when its parts are moving and produces an signal related thereto, and a control module which analyzes the amplitude of the signal from the ultrasonic detection module and, in response to a lubricate signal, causes the lubricant dispenser to automatically dispense lubricant onto the moving parts of the device until the signal from the ultrasonic detector indicates that the ultrasonic energy produced by the device has decreased to a particular level. The control module includes a programmed processor and a storage memory. The memory stores as a base value the value of the detected amplitude of ultrasonic energy when the device is operating properly.

Abstract: A portable apparatus for determining testing the condition of a machine or device using ultrasonic signals with an array of ultrasonic sensors for receiving an ultrasonic signal transmitted from the machine or device. The apparatus possesses a heterodyne circuit coupled to receive the output signals from the ultrasonic sensors and convert the output signals to a heterodyned audio signal to be analyzed via a digital spectrum analyzer integral to the portable apparatus. The digital spectrum analyzer performs real-time fast fourier transformations on the heterodyned audio signal. After analyzing the signals, the hand held device uses a variety of audiovisual cues to direct a user to portions of the machine in need of repair or monitoring.

Abstract: The present invention is directed an ultrasonic frequencies fault detecting apparatus. The present invention uses high frequency ultrasonic energy signals to analyze bearings and determine the presence of faults therein. The ultrasonic return signals are heterodyned (by amplitude demodulation) into the audio spectrum for purposes of audio detection. In addition, a FFT spectrum of the signal is displayed on a monitor for more accurate results. According to the present invention software is used to automatically analyze the FFT spectrum by comparing the current spectrum with stored spectrums of known bearing conditions as modified based on the rotary speed of the bearing and the number of balls. Once a defect in a bearing has been located in this manner using automated FFT analysis, an operator can then use a device, such as a calibrated lubricant dispenser, to effectuate maintenance and/or repair.

Abstract: A portable apparatus for determining testing the condition of a machine or device using ultrasonic signals with an array of ultrasonic sensors for receiving an ultrasonic signal transmitted from the machine or device. The apparatus possesses a heterodyne circuit coupled to receive the output signals from the ultrasonic sensors and convert the output signals to a heterodyned audio signal to be analyzed via a digital spectrum analyzer integral to the portable apparatus. The digital spectrum analyzer performs real-time fast fourier transformations on the heterodyned audio signal. After analyzing the signals, the hand held device uses a variety of audiovisual cues to direct a user to portions of the machine in need of repair or monitoring.

Abstract: A lubrication dispensing apparatus for lubricating a device with moving parts includes a lubricant reservoir, a lubricant dispenser for dispensing lubricant from the lubricant reservoir, an ultrasonic detection module which detects the amplitude of ultrasonic energy emitted by said device when its parts are moving and produces an signal related thereto, and a control module which analyzes the amplitude of the signal from the ultrasonic detection module and, in response to a lubricate signal, causes the lubricant dispenser to automatically dispense lubricant onto the moving parts of the device until the signal from the ultrasonic detector indicates that the ultrasonic energy produced by the device has decreased to a particular level. The control module includes a programmed processor and a storage memory. The memory stores as a base value the value of the detected amplitude of ultrasonic energy when the device is operating properly.

Abstract: A system determines the carbon footprint of a compressed gas leak. The system comprises an ultrasonic detector to detect a compressed gas leak, a storage device storing information on the type of gas, the compressor efficiency, and the carbon emissions necessary to generate electricity to drive the compressor. A processing unit includes software that determines an amount of electrical energy needed to recharge the lost compressed gas based on the compressor efficiency and calculates the carbon emissions created by the amount of electrical energy. A method monitoring for gas leaks comprises detecting ultrasonic emissions, generating an electrical signal representative of the compressed gas leak, and calculating an amount of electrical energy needed to recharge the lost compressed gas. The method further includes calculating the carbon footprint based on the carbon emissions necessary for the electrical power generation system that drives the compressor.

Abstract: Provided are processes for feeding ethylene into a polymerization system operating in a liquid phase or supercritical phase.

Abstract: A system determines the carbon footprint of a compressed gas leak. The system comprises an ultrasonic detector to detect a compressed gas leak, a storage device storing information on the type of gas, the compressor efficiency, and the carbon emissions necessary to generate electricity to drive the compressor. A processing unit includes software that determines an amount of electrical energy needed to recharge the lost compressed gas based on the compressor efficiency and calculates the carbon emissions created by the amount of electrical energy. A method monitoring for gas leaks comprises detecting ultrasonic emissions, generating an electrical signal representative of the compressed gas leak, and calculating an amount of electrical energy needed to recharge the lost compressed gas. The method further includes calculating the carbon footprint based on the carbon emissions necessary for the electrical power generation system that drives the compressor.

Abstract: In a process for converting methane to alkylated aromatic hydrocarbons, a feed containing methane is contacted with a dehydrocyclization catalyst under conditions effective to convert said methane to aromatic hydrocarbons and produce a first effluent stream comprising aromatic hydrocarbons and hydrogen. At least a portion of said aromatic hydrocarbon from said first effluent stream is then contacted with an alkylating agent under conditions effective to alkylate said aromatic hydrocarbon and produce an alkylated aromatic hydrocarbon having more alkyl side chains than said aromatic hydrocarbon prior to the alkylating.

Abstract: A process is provided for the production of xylenes from reformate. The process is carried out by methylating under conditions effective for the methylation, the benzene/toluene present in the reformate outside the reforming loop, to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.

Abstract: A process for reducing the Bromine Index of a hydrocarbon feedstock, the process comprising the step of contacting the hydrocarbon feedstock with a catalyst at conversion conditions, wherein the catalyst includes at least one molecular sieve and at least one clay, and wherein said catalyst is sufficient to reduce more than 50% of the Bromine Index of a hydrocarbon feedstock.

Abstract: A process is provided for the production of xylenes from reformate. The process is carried out by methylating the benzene, toluene, or both present in the reformate to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.