Abstract: A system and process for generating, on-site, a sustained C6+C7 aromatic rich solvent stream for tar solvation within the olefin plant employing a two-fuel oil tower system receiving a hydrocarbon feed from a quench water separator drum, where the two-fuel oil tower system is configured to make a sufficient solvent stream containing C6+C7 aromatic rich hydrocarbons that is recycled and mixed with quench water going to the quench water separator drum to assist in removing tar molecules out of the quench water.

Abstract: Described herein are fields of exercise or therapy systems in particular exercise or therapy systems that controllably generate and maintain an unweighted environment using a mechanical system or a differential air pressure (DAP) envelope about a user so as to at least partially or completely unweight the user. This application also relates to improved control systems for pressure chambers for use in differential air pressure (DAP) systems including data collection and utilization for general fitness use, athletic use, or medical use treadmills and related software, control and analytics systems, especially as related to obtaining gait data from load cells provided in the system.

Abstract: Systems and methods for streaming data in a legacy mainframe environment. In some embodiments, the method includes receiving, at a KAFKA streaming platform abstraction layer interface, production data from a first publisher application; selecting a producer instance to receive the production data; and configuring the selected producer instance with a first set of configuration parameters from at least one producer library. The method may further include communicating the first publication data to the selected producer instance; and forwarding the first publication data to a KAFKA streaming platform cluster in operable communication with a consumer instance.

Abstract: Systems and methods for streaming data in a legacy mainframe environment. In some embodiments, the method includes receiving, at a KAFKA streaming platform abstraction layer interface, production data from a first publisher application; selecting a producer instance to receive the production data; and configuring the selected producer instance with a first set of configuration parameters from at least one producer library. The method may further include communicating the first publication data to the selected producer instance; and forwarding the first publication data to a KAFKA streaming platform cluster in operable communication with a consumer instance.

Abstract: Systems and methods for gaining percutaneous access to a body lumen, preferably without a guidewire, are provided herein. The system can include a tubular medical device and a needle with a distal tip. A side port is provided through a wall of the tubular medical device, to be in communication with a distal end opening of the device via a passageway. The needle can be positioned within the side port to extend the distal tip beyond the distal end opening. In this position, the distal tip can form an entry opening in the body lumen, and a distal portion of the device can be advanced over the indwelling needle into the entry opening. The needle can then be withdrawn from the tubular medical device, while maintaining a portion of the tubular medical device in place within the body lumen.

Abstract: Method and apparatus for shared data update and query operations. Two control fields are associated with each data block of interest. Before any data in shared memory is modified, a value different from the present value is written into one of the shared memory control fields. The shared memory data is then updated. Thereafter, the other shared memory control field is updated to the new value, thus making the values of the shared memory control fields identical once again. During query operations, the data and control fields of interest are copied into in private storage. The values of the control fields in private memory are compared. If the values are equal, the data in private storage is considered to be consistent. Otherwise, the data is considered to be in the process of being updated and the data is ignored until the values of the shared memory control fields become equal.

Abstract: An arrangement and method of inactivating dynamically an exit in a computer system. An exit is a program module associated with a first program and which is invoked while active by a second program in response to the occurrence of a prescribed system event. When a request to inactivate exit is received, it is determined if one or more invocations of the exit are in progress or scheduled. If an invocation of the exit is not in progress or scheduled, the exit is marked as inactive. However, if one or more invocations of the exit are in progress or scheduled, the exit is marked as inactive only when all such invocations that are in progress or scheduled are complete.

Abstract: In multi-user (including multi-process) computing systems, Memory Access Serialization instructions are used to allow multiple processes to add and remove elements from a list without the usual software serialization requirements.