53 research outputs found
DETERMINISTIC PROCESS NETWORKS BASED ON ADAPTIVE TRAFFIC POLICING AND FILTERING
Techniques are described herein to facilitate deterministic networking based on Time-Sensitive Networking (TSN) for Substation Automation Networks (SANs). The use of adaptive configuration of filtering and policing for TSN-streams allows the implementation and operation of a secure converged process bus architecture and supports the approach of a fully digital substation
INTEGRATED SECURITY-TAGGING FOR DETERMINISTIC ETHERNET
Techniques are described herein for enhancing Time-Sensitive Networking (TSN) in network fabrics by dynamically assigning Secure Group Tags (SGTs) based on the stream configuration in a TSN controller. The TSN controller communicates stream details to a policy engine which creates a policy and assigns an SGT for the stream. The TSN controller pushes regular stream scheduling to the network switches, but also pushes a function that maps the stream identification based on the multicast Media Access Control (MAC) to a specific SGT. The TSN stream is now protected by the correct SGTs end-to-end
Management of IEEE 802.1Qci Security Policies for Time Sensitive Networks (TSN)
Techniques are described herein to provide a centralized policy management mechanism that enables: the consumption of traffic intent from the well-known CNC; translation into new rule sets dynamically applied along the path; and the dynamic monitoring of the CNC rule sets for dynamic adaptation of rules as the traffic intent changes
END-TO-END TIME-SENSITIVE NETWORKING CONNECTING 5G SLICES
Techniques are described herein for deploying 5G slices in conjunction with Time-Sensitive Networking (TSN) in the backhaul network. The system employs a network controller that both provisions the backhaul device scheduling and path detection, and combines it with the aligned requirements of the 5G slice and builds and enforces a Service Level Agreement (SLA) to meet the TSN needs. The system finally manages the end to end system by connecting the fronthaul 5G network with the wired backhaul network
AUTOMATED ONBOARDING AND TIME-SENSITIVE NETWORK (TSN) FLOW CREATION OF DEVICES IN A TSN NETWORK ENVIRONMENT
Techniques described herein provide for automating a time-sensitive network (TSN) configuration using an edge inventory system. In particular, according to techniques described herein, an asset inventory system discovers a TSN-capable device, identifies the requirements of the TSN-capable device, and adds a TSN tag to the asset inventory system that describes the function of the device. The asset inventory system provides instructions to on-board the device to a network as TSN-mandatory and sets the latency bounds for the network based on known or discovered characteristics of the device
Measurement of railway traction transformer using by SFRA method
The paper deals with measurement of railway traction transformer using by Sweep Frequency Response Analysis method (SFRA). It was the first measurement of traction transformer SFRA characteristics. In this paper are given reference measurements as well as measurements after type test of new railway transformer
AN IMPROVED METHOD FOR INTELLIGENT SCREEN LAYOUT
Techniques are described for a mechanism to intelligently change layouts of a video conference or other collaborative meeting based on a variety of possible inputs (e.g., age of the shared screen, user preference, use of white boards, audience gaze, word matching, etc.). The mechanism resizes the shared screen for a collaborative meeting using an algorithm that estimates the current attention to the screen versus meeting participant intercommunications. The goal of the mechanism is to right-size the shared content so that it does not interfere with the live video conversation and to optimize the overall experience for meeting participants
Analysis of unresolved complex mixtures of hydrocarbons extracted from Late Archean sediments by comprehensive two-dimensional gas chromatography (GCĂ—GC)
Author Posting. © Elsevier B.V., 2008. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in Organic Geochemistry 39 (2008): 846-867, doi:10.1016/j.orggeochem.2008.03.006.Hydrocarbon mixtures too complex to resolve by traditional capillary gas chromatrography display gas chromatograms with dramatically rising baselines or “humps” of coeluting compounds that are termed unresolved complex mixtures (UCMs). Because the constituents of UCMs are not ordinarily identified, a large amount of geochemical information is never explored. Gas chromatograms of saturated/unsaturated hydrocarbons extracted from Late Archean argillites and greywackes of the southern Abitibi Province of Ontario, Canada contain UCMs with different appearances or “topologies” relating to the intensity and retention time of the compounds comprising the UCMs. These topologies appear to have some level of stratigraphic organization, such that samples collected at any stratigraphic formation collectively are dominated by UCMs that either elute early- (within a window of C15-C20 of n-alkanes), early- to mid- (C15-C30 of n-alkanes), or have a broad UCM that extends through the entire retention time of the sample (from C15-C42 of n-alkanes). Comprehensive two-dimensional gas chromatography time-of-flight mass spectrometry (GC×GC-MS) was used to resolve the constituents forming these various UCMs. Early- to mid- eluting UCMs are dominated by configurational isomers of alkyl-substituted and non substituted polycyclic compounds that contain up to six rings. Late eluting UCMs are composed of C36-C40 mono-, bi-, and tricyclic archaeal isoprenoid diastereomers. Broad UCMs spanning the retention time of compound elution contain nearly the same compounds observed in the early-, mid-, and late retention time UCMs. Although the origin of the polycyclic compounds is unclear, the variations in the UCM topology appear to depend on the concentration of initial compound classes that have the potential to become isomerized. Isomerization of these constituents may have resulted from hydrothermal alteration of organic matter.This project was supported by NASA Exobiology grant
#NAG5-13446 to Fabien Kenig. GCĂ—GC analysis was supported by NSF grant IIS-0430835 and
the Seaver Foundation to Christopher M. Reddy. Preparation of the archaeal biphytane standard
was supported by NSF grant ARC-0520226 to Benjamin Van Mooy
CP2K: An electronic structure and molecular dynamics software package - Quickstep: Efficient and accurate electronic structure calculations
CP2K is an open source electronic structure and molecular dynamics software package to perform atomistic simulations of solid-state, liquid, molecular, and biological systems. It is especially aimed at massively parallel and linear-scaling electronic structure methods and state-of-the-art ab initio molecular dynamics simulations. Excellent performance for electronic structure calculations is achieved using novel algorithms implemented for modern high-performance computing systems. This review revisits the main capabilities of CP2K to perform efficient and accurate electronic structure simulations. The emphasis is put on density functional theory and multiple post–Hartree–Fock methods using the Gaussian and plane wave approach and its augmented all-electron extension
Diagnosis and treatment of pancreatic duct disruption or disconnection: an international expert survey and case vignette study
Background: Pancreatic duct disruption or disconnection is a potentially severe complication of necrotizing pancreatitis. With no existing treatment guidelines, it is unclear whether there is any consensus among experts in clinical practice. We evaluated current expert opinion regarding the diagnosis and treatment of pancreatic duct disruption and disconnection in an international case vignette study. Methods: An online case vignette survey was sent to 110 international expert pancreatologists. Expert selection was based on publications in the last 5 years and/or participation in development of IAP/APA and ESGE guidelines on acute pancreatitis. Consensus was defined as agreement by at least 75% of the experts. Results: The response rate was 51% (n = 56). Forty-four experts (79%) obtained a MRI/MRCP and 52 experts (93%) measured amylase levels in percutaneous drain fluid to evaluate pancreatic duct integrity. The majority of experts favored endoscopic transluminal drainage for infected (peri)pancreatic necrosis and pancreatic duct disruption (84%, n = 45) or disconnection (88%, n = 43). Consensus was lacking regarding the treatment of patients with persistent percutaneous drain production, and with persistent sterile necrosis. Conclusion: This international survey of experts demonstrates that there are many areas for which no consensus existed, providing clear focus for future investigation
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