Abstract: Embodiments relate generally to systems and methods for gas detection. A method may comprise operating a gas detector with a first alarm setting comprising a first predefined threshold; receiving sensed data of oxygen content in the ambient air; when the sensed data is below the first predefined threshold, activating an alarm; generating an acknowledgement request asking if the gas detector has entered an inert work zone; receiving a response from the user acknowledging that the gas detector has entered an inert work zone; deactivating the alarm; changing the alarm settings of the gas detector to a second alarm setting comprising a second predefined threshold; continuing to receive sensed data of oxygen content in the ambient air; when the sensed data is above the second predefined threshold, activating an alarm; and generating an acknowledgement request for the user asking if the gas detector has entered a normal operation work zone.

Abstract: A method for testing a system under test (SUT) in an active environment to identify cause of a soft failure includes recording a first difference vector by executing a set of test cases on a baseline system and monitoring performance parameters of the baseline system before and after executing the test cases. Each performance record represents differences in the performance parameters of the baseline system from before and after the execution of a corresponding test case. The method further includes, similarly, recording a second difference vector by executing the test cases on the SUT and monitoring performance parameters of the SUT before and after executing the test cases. The method further includes identifying an outlier performance record from the second difference vector by comparing the difference vectors and further, determining a root cause of the soft failure by analyzing a test case corresponding to the outlier.

Abstract: Vaporizer vessels include one or more reagent support panels, serving as dividers of interior space of the vessel, in a vertical orientation such as when filling the vaporizer vessels, and when rotated into a horizontal orientation, the panels support the vaporizable solid materials placed in one or more chambers formed by the panels and interior walls of the vessels and enable transfer of heat to those solid materials. The chambers are such that any or all chambers filled with the vaporizable solid materials provide a void space to allow the solid materials to vaporize and for gas to move through the vaporizer vessels when heated, to allow effective vaporization of the solid materials and further allow the vapor resulting from the solid materials to move to an outlet of the vessels where it can be provided as part of a process.

Abstract: Disclosed are methods and systems for improved wireless terminal roaming. In some embodiments, a management module determines access point density metrics for a plurality of centrally managed access points of a communications site. The density metric considers an average RSSI of access point signals received by other access points of the site, and each access point's contribution to the average. A determination of whether a particular wireless terminal roams is based on the density metrics of the source and target access point, as well as statistics relating to a current capacity of each of the access points. The disclosed embodiments may determine that a wireless terminal should transition/roam away from an access point even when that access point's RSSI value at the wireless terminal is above a threshold that would cause traditional methods to inhibit roaming.

Abstract: A method for testing a system under test (SUT) in an active environment to identify cause of a soft failure includes recording a first difference vector by executing a set of test cases on a baseline system and monitoring performance parameters of the baseline system before and after executing the test cases. Each performance record represents differences in the performance parameters of the baseline system from before and after the execution of a corresponding test case. The method further includes, similarly, recording a second difference vector by executing the test cases on the SUT and monitoring performance parameters of the SUT before and after executing the test cases. The method further includes identifying an outlier performance record from the second difference vector by comparing the difference vectors and further, determining a root cause of the soft failure by analyzing a test case corresponding to the outlier.

Abstract: An airflow inhibitor apparatus for use in the mouth has an airflow inhibitor body and a tongue shelf. The tongue shelf positions the forward part of the tongue upward, improving the oral posture of the wearer and promoting proper nasal breathing. The airflow inhibitor body helps block the user from mouth breathing. The body is adjacent to the lips and the teeth when in the mouth. The tongue shelf extends laterally from the body. A bite pad may be shaped to fit the teeth of the wearer, having been made with reference to a custom mold or the like, or may have a combination of protrusions that permit the teeth to grip the pad. In an alternative configuration, the body has thinned wall sections that facilitate trimming of the airflow inhibitor apparatus with scissors or the like.

Abstract: A method, computer system, and computer program product for protecting user confidentiality. Signal transmissions in a location in which a user is present are monitored by a computer system. A set of recording devices in an active state for recording the user in the location is identified by the computer system based on patterns in the signal transmissions monitored in the location. A set of alerts notifying the user of the set of recording devices in the active state for recording the user is generated by the computer system.

Abstract: Systems and methods for liquefying a gaseous hydrogen that include a first refrigeration stage and a second refrigeration stage. The first refrigeration stage includes a first heat exchanger configured to flow a first refrigerant to pre-cool the gaseous hydrogen. The second refrigeration stage includes a second heat exchanger configured to flow a second refrigerant to liquefy and sub-cool the hydrogen. The second refrigerant is split into two streams that flow through two compressor-expanders and multiple passes through the second heat exchanger before being recombined to repeat the second refrigeration stage circuit.

Abstract: Systems and methods for liquefying a gaseous hydrogen that include a first refrigeration stage and a second refrigeration stage. The first refrigeration stage includes a first heat exchanger configured to flow a first refrigerant to pre-cool the gaseous hydrogen. The second refrigeration stage includes a second heat exchanger configured to flow a second refrigerant to liquefy and sub-cool the hydrogen. The second refrigerant is split into two streams that flow through two compressor-expanders and multiple passes through the second heat exchanger before being recombined to repeat the second refrigeration stage circuit.

Abstract: A LNG liquefaction plant includes a propane recovery unit including an inlet for a feed gas, a first outlet for a LPG, and a second outlet for an ethane-rich feed gas, an ethane recovery unit including an inlet coupled to the second outlet for the ethane-rich feed gas, a first outlet for an ethane liquid, and a second outlet for a methane-rich feed gas, and a LNG liquefaction unit including an inlet coupled to the second outlet for the methane-rich feed gas, a refrigerant to cool the methane-rich feed gas, and an outlet for a LNG. The LNG plant may also include a stripper, an absorber, and a separator configured to separate the feed gas into a stripper liquid and an absorber vapor. The stripper liquid can be converted to an overhead stream used as a reflux stream to the absorber.

Abstract: Disclosed are methods and systems for improved wireless terminal roaming. In some embodiments, a management module determines access point density metrics for a plurality of centrally managed access points of a communications site. The density metric considers an average RSSI of access point signals received by other access points of the site, and each access point's contribution to the average. A determination of whether a particular wireless terminal roams is based on the density metrics of the source and target access point, as well as statistics relating to a current capacity of each of the access points. The disclosed embodiments may determine that a wireless terminal should transition/roam away from an access point even when that access point's RSSI value at the wireless terminal is above a threshold that would cause traditional methods to inhibit roaming.

Abstract: Embodiments relate to a system, program product, and method for reserving one or more meeting rooms, and, more specifically, for reserving one or more meeting rooms based on a determination of meeting confidentiality levels and determined Internet of things (IoT) privacy levels associated with the one or more meeting rooms.

Abstract: Embodiments relate generally to systems and methods for pre-cooling a natural gas stream to a liquefaction plant. A system may include a compressor configured to receive a first natural gas stream at a first pressure and produce a second natural gas stream at a second pressure; an exchanger, wherein the exchanger is configured to receive the second natural gas stream as the second pressure and cool the second natural gas stream to produce a cooled natural gas stream; and an expander, wherein the expander is configured to receive the cooled natural gas stream and expand the cooled natural gas stream to produce a chilled natural gas stream from the second pressure to a third pressure. An LNG liquefaction plant system, wherein the refrigeration content of the external or internal refrigerant is used to liquefy and sub-cool a natural gas stream to produce liquefied natural gas (LNG) in a cold box or cryogenic exchanger.

Abstract: An approach is provided for generating an interface. Using natural language processing and natural language understanding, ingredients are derived from audio data from a customer's spoken order of ingredients of a food item. Locations of the ingredients in a preparation area are identified. A location of an employee is determined. Distances of the ingredient locations to the employee location are calculated. A sequence of selecting the ingredients is determined so that the employee selecting the ingredients in the sequence optimizes a speed at which the food item is prepared. An overlay to an interface for viewing in an augmented reality (AR) headset worn by the employee is generated and displayed. The overlay includes indicators overlaying an image of the preparation area. The indicators mark the ingredients, mark the sequence of selecting the ingredients, and distinguish the ingredients from other ingredients in the preparation area.

Abstract: A computer-implemented method, a computer program product, and a computer system for dynamically adjusting zoom settings in a multiple user environment. A server determines whether the multiple user environment is an environment of co-located users or an environment of distributed users. In response to determining the environment of the co-located users, the server determines an aggregated preference, determines an optimal zoom setting for a singular display based on the aggregated preference, and adjusts the singular display based on the optimal zoom setting for the singular display. In response to determining the environment of the distributed users, the server determines optimal zoom settings for respective ones of the multiple displays, based on preferences of respective ones of the distributed users, and the server adjusts the respective ones of the multiple displays, based on the optimal zoom settings for the respective ones of the multiple displays.

Abstract: A recoil assembly for a rifle includes a barrel assembly, a bolt, bolt actuator, and a buffer assembly. The barrel assembly includes a barrel secured to a barrel extension. The barrel assembly is configured to be movably received through the fore end of a receiver and to move axially relative to the upper receiver when the rifle is fired. The barrel extension is coupled to a hydraulic buffer assembly located below the barrel extension and counteracts recoil forces acting on the barrel extension when the rifle is fired. An op-rod spring is coupled to an op rod extending from a gas piston assembly on the barrel. The op-rod spring counteracts recoil forces acting the bolt actuator when the rifle is fired.

Abstract: Identifying and reducing package delivery risks can include receiving, at a computer, package delivery data for a package to be delivered. Package delivery factors can be determined which include package fragility. Product information and product reviews can be analyzed based on the factors, and the analyzing can include using natural language processing to evaluate the product information and product reviews to identify language related to the factors. The factors can be weighted based on the analysis of the product information and the product reviews based on a probability of risk of damage to the package. A package risk score is calculated based on the analysis and the weighting. A best delivery practice for the package is generated based on the package risk score, and the package risk score and best delivery practice is communicated to a device of a delivery person.

Abstract: An ejector device (1), e.g., for pumping a gas using a liquid motive fluid, has an injector portion (100), and a diffuser portion (50), the injector portion (100) being arranged for injecting a flow of motive fluid from a motive fluid inlet (10) into an inlet section (52) of the diffuser portion (50) thereby to draw a suction fluid from a suction fluid inlet (20) into the inlet section (52) of the diffuser portion (50). The injector portion (100) includes a flow-modifying arrangement with at least one rotational deflector element (104), e.g., three vanes (104V1, 104V2, 104V3) each at a desired twist angle, constructed and arranged to deflect motive fluid into a helical path as it moves over or through the rotational deflector element (104), and at least one baffle element (103), e.g., a baffle plate (103), downstream of the rotational deflector element (104).

Abstract: Aspects for resolving failed user-interface functionality are described. One or more processors are configured for detecting a first user input having a first input magnitude at user-selectable elements displayed on a local device user-interface, determining that the local device user-interface is not responsive to the first user input; detecting a second user input having a second input magnitude that is greater than the first input magnitude at the user-selectable elements, wherein the first user input and the second user input are by the user; determining that the local device user-interface is not responsive to the second user input; transmitting first data corresponding to a user-interface offload prompt to a mobile device associated with the user, wherein the mobile device is within a predetermined proximity of the local device user-interface; and receiving second data corresponding to a plurality of mobile device user inputs from the mobile device.

Abstract: Aspects for resolving failed user-interface functionality are described. One or more processors are configured for detecting a first user input having a first input magnitude at user-selectable elements displayed on a local device user-interface, determining that the local device user-interface is not responsive to the first user input; detecting a second user input having a second input magnitude that is greater than the first input magnitude at the user-selectable elements, wherein the first user input and the second user input are by the user; determining that the local device user-interface is not responsive to the second user input; transmitting first data corresponding to a user-interface offload prompt to a mobile device associated with the user, wherein the mobile device is within a predetermined proximity of the local device user-interface; and receiving second data corresponding to a plurality of mobile device user inputs from the mobile device.