Abstract: Described are isolation valves, and chamber systems incorporating and methods of using the isolation valves. In some embodiments, an isolation valve may include a valve body and a flapper assembly. The valve body may define a first fluid volume, a second fluid volume, and a seating surface. The flapper assembly may include a flapper disposed inside the valve body having a flapper surface complimentary to the seating surface. The flapper may be pivotable within the valve body to a first position such that the flapper surface may be away from the seating surface to allow fluid flow between the first fluid volume and the second fluid volume. The flapper may be pivotable within the valve body to a second position such that the flapper surface may be proximate the seating surface to form a non-contact seal to restrict fluid flow between the first fluid volume and the second fluid volume.

Abstract: A system for providing a boosted decision tree (BDT) for use on an electronic device to provide an event score based on a user input event, where the device includes: a machine learning trainer configured to create a trained BDT from an untrained BDT by determining parameters for the untrained BDT; a nanosecond optimizer configured to create an optimized BDT, the nanosecond optimizer including at least one of a tree flattener, a tree merger, a score normalizer, a tree remover, and a cut eraser; and a converter coupled to the nanosecond optimizer and configured to receive the optimized BDT from the nanosecond optimizer and convert the optimized BDT to a language for high-level-synthesis to produce a hardware description language representation of the optimized BDT, wherein the hardware description language representation of the optimized BDT is structured and configured to be implemented in firmware provided on the electronic device.