Abstract: An ultrasonic transducer is described, including a piezoelectric element, a fluid medium contact layer, a matching layer between the piezoelectric element and the fluid medium contact layer, and a backing layer. Ultrasound sensor devices utilising the ultrasonic transducer are also described, for use in systems for analysing a fluid such as milk.

Abstract: The invention generally relates to apparatuses for focusing ions at or above ambient pressure and methods of use thereof. In certain embodiments, the invention provides an apparatus for focusing ions that includes an electrode having a cavity, at least one inlet within the electrode configured to operatively couple with an ionization source, such that discharge generated by the ionization source is injected into the cavity of the electrode, and an outlet. The cavity in the electrode is shaped such that upon application of voltage to the electrode, ions within the cavity are focused and directed to the outlet, which is positioned such that a proximal end of the outlet receives the focused ions and a distal end of the outlet is open to ambient pressure.

Abstract: The invention generally relates to conducting reactions in Leidenfrost-levitated droplets.

Abstract: The invention generally relates to sample analysis systems and methods of use thereof. In certain aspects, the invention provides a system for analyzing a sample that includes an ion generator configured to generate ions from a sample. The system additionally includes an ion separator configured to separate at or above atmospheric pressure the ions received from the ion generator without use of laminar flowing gas, and a detector that receives and detects the separated ions.

Abstract: Optical fiber connections and their applications in downhole assemblies are described herein. The downhole assembly includes a well completion element with an end that couples with a corresponding well completion element. An optical fiber extends along at least a portion of the well completion element and transmits an optical signal using a first mode. The well completion element includes an optical fiber connector that is coupled to the optical fiber. The connector also includes a mode converter that receives the optical signal from the optical fiber and converts the optical signal from the first mode to a second larger mode. This second larger mode may be more robustly communicated to a corresponding optical fiber connector affixed to the corresponding well completion element.

Abstract: Techniques are disclosed for query processing system that can, when queried, generate a result related to one or more connectivity paths and/or one or more network security rules. Network security rules and connectivity paths may be stored in corresponding data structures (e.g., sets of attributes) that may be utilized with a number of set operations. The user may issue a query requesting the system to apply a rule to a path, a set of rules to a set of paths, to identify if one set of rule(s) are equivalent to another set of rule(s), and the like. Utilizing this query processing system can enable a user to identify effects of one or more network rules with respect to traffic being allowed or restricted along particular connectivity paths between components of the system.

Abstract: Techniques are disclosed for network policy verification system that can obtain a set of connectivity paths of a containerized environment that individually indicate connections between pairs of containers. Identify a first container and a second container of a pair based at least in part on a connectivity path. Determine a network policy corresponding to the connectivity path that indicates an expected result of that particular connection. A connection can be initiated between the two containers. The result may be presented at a user device based at least in part on identifying that the result is different from the expected result indicated by the network policy corresponding to the connectivity path.

Abstract: Techniques are disclosed for network policy verification system that can obtain a set of connectivity paths of a containerized environment that individually indicate connections between pairs of containers. Identify a first container and a second container of a pair based at least in part on a connectivity path. Determine a network policy corresponding to the connectivity path that indicates an expected result of that particular connection. A connection can be initiated between the two containers. The result may be presented at a user device based at least in part on identifying that the result is different from the expected result indicated by the network policy corresponding to the connectivity path.

Abstract: The invention generally relates to systems and methods for conducting reactions and screening for reaction products.

Abstract: The invention generally relates to enclosed desorption electrospray ionization probes, systems, and methods. In certain embodiments, the invention provides a source of DESI-active spray, in which a distal portion of the source is enclosed within a transfer member such that the DESI-active spray is produced within the transfer member.

Abstract: A computer system may receive one or more requests for access to one or more cloud services and may store the one or more requests in a request log. The computer system may receive one or more access rules applicable to cloud service access rights. The computer system may aggregate the one or more requests of the request log to determine access requirements for a container, the container being configured to store one or more applications. The computer system may generate and store container access policies that define access of a container and the one or more cloud services, the container access policies based at least in part on the aggregated one or more requests and the one or more access rules. The computer system may send the container access policies to a request forwarder of a compute instance in a production environment.

Abstract: The invention generally relates to systems and methods for precursor and neutral loss scan in an ion trap. In certain aspects, the invention provides a system that includes a mass spectrometer having an ion trap, and a central processing unit (CPU). The CPU includes storage coupled to the CPU for storing instructions that when executed by the CPU cause the system to excite a precursor ion and eject a product ion in the single ion trap.

Abstract: Techniques are disclosed for query processing system that can, when queried, generate a result related to one or more connectivity paths and/or one or more network security rules. Network security rules and connectivity paths may be stored in corresponding data structures (e.g., sets of attributes) that may be utilized with a number of set operations. The user may issue a query requesting the system to apply a rule to a path, a set of rules to a set of paths, to identify if one set of rule(s) are equivalent to another set of rule(s), and the like. Utilizing this query processing system can enable a user to identify effects of one or more network rules with respect to traffic being allowed or restricted along particular connectivity paths between components of the system.

Abstract: The invention generally relates to methods for analyzing a metabolite level in a sample. In certain embodiments, methods of the invention may involve obtaining a sample, analyzing the sample using a mass spectrometry technique to determine a level of at least one metabolite in the sample, and correlating the metabolite level with an originating source of the sample, thereby analyzing the sample.

Abstract: The invention generally relates to high-throughput label-free enzymatic bioassays using desorption electrospray ionization-mass spectrometry (DESI-MS).

Abstract: The invention generally relates to methods for analyzing an analyte in a sample that involve providing a capture module, the module configured to capture an analyte from a sample in an ambient environment and generate ions of the analyte, wherein the capture module comprises a cartridge and a porous substrate within the cartridge that is connected to a voltage source; and generating ions of the analyte from the capture module that are analyzed in a mass analyzer operably coupled to the capture module, thereby analyzing the analyte in the sample.

Abstract: The invention generally relates to a sample dispenser including an internal standard and methods of use thereof.

Abstract: A system and technique for a Request Forwarder as for a computer network architecture is disclosed to provide selective access to one or more cloud services. In some implementations, a computer system may receive a request for access to a cloud service, the request including a container credential. The computer system may determine an identification of the container using the container credential. The computer system may verify that the container requesting access to the cloud service is authorized based at least in part on stored policies. Based at least in part on the determination that the container requesting access to the cloud service is authorized: receiving instance credential from a metadata service. The computer system may include the instance credential with the request. The computer system may send the request to the cloud service. In various examples, the Request Forwarder can be provided as a service.

Abstract: The invention generally relates to apparatuses for focusing ions at or above ambient pressure and methods of use thereof. In certain embodiments, the invention provides an apparatus for focusing ions that includes an electrode having a cavity, at least one inlet within the electrode configured to operatively couple with an ionization source, such that discharge generated by the ionization source is injected into the cavity of the electrode, and an outlet. The cavity in the electrode is shaped such that upon application of voltage to the electrode, ions within the cavity are focused and directed to the outlet, which is positioned such that a proximal end of the outlet receives the focused ions and a distal end of the outlet is open to ambient pressure.

Abstract: The invention generally relates to sample analysis systems and methods of use thereof. In certain aspects, the invention provides a system for analyzing a sample that includes an ion generator configured to generate ions from a sample. The system additionally includes an ion separator configured to separate at or above atmospheric pressure the ions received from the ion generator without use of laminar flowing gas, and a detector that receives and detects the separated ions.