Abstract: Systems and methods for analyzing the root cause of service failures and service degradation in a telecommunications network are provided. A method, according to one implementation, includes a step of receiving any of Performance Monitoring (PM) data, standard path alarms, service PM data, standard service alarms, network topology information, and configuration logs from equipment configured to provide services in a network. The method also includes a step of automatically detecting a root cause of a service failure or signal degradation from the available PM data, standard path alarms, service PM data, standard service alarms, network topology information, and configuration logs.

Abstract: Systems and methods of network resource optimization based on time-varying traffic in an optical network with a filterless architecture include determining traffic variations based on the time-varying traffic in the optical network; and adjusting one or more of transceivers and wavelengths between nodes in the optical network based on the traffic variations and using the filterless architecture. The adjusting minimizes the number of the transceivers and the wavelengths based on the traffic variations and the time-varying traffic. The optical network can geographically span multiple time zones, contributing to the time-varying traffic.

Abstract: Systems and methods of network resource optimization based on time-varying traffic in an optical network with a filterless architecture include determining traffic variations based on the time-varying traffic in the optical network; and adjusting one or more of transceivers and wavelengths between nodes in the optical network based on the traffic variations and using the filterless architecture. The adjusting minimizes the number of the transceivers and the wavelengths based on the traffic variations and the time-varying traffic. The optical network can geographically span multiple time zones, contributing to the time-varying traffic.

Abstract: A modular robotic platform is provided having four legs mounted to a body. Each of the legs is mounted to the body via a steering assembly so as to pivot in a first plane relatively to the body. Each leg includes an endless track assembly having a first wheel, a drive system for driving the first wheel, a second wheel, an endless track for rotatably coupling the second wheel to the first wheel, and a track tensioning assembly for pivoting the leg in a second plane perpendicular to the first plane. Each leg includes a locomotion controller and a local environment recognition module. Synchronisation of the legs is achieved by a central controller, which gathers data information from each leg through a synchronisation bus. A coordination bus allows to exchange data information between different modules of the robotic platform, including the legs, the central control system and other systems or modules such as an energizing system, a pitch gauge system, etc.

Abstract: The disclosure concerns electron tubes. A tube such as a cathode-ray tube consists of several parts, namely the stem, the neck, the cone and the screen of the front face. To build a tube such as this more compactly while, at the same time, improving the quality of the fabrication, a new construction of the neck is proposed. In the prior art, the neck is a glass tube to which there is soldered a glass stem through which pass the connection terminals towards the various electrodes, internal to the tube. Here, the neck is built in the form of a stack of alternating metallic rings and ceramic rings. The metallic rings are used for the supporting of and electrical connection to the internal electrodes. The ceramic rings are used to insulate the metallic rings. The brazings between metallic rings and ceramic rings provide for vacuum tightness. The base of the tube is a ceramic washer without drillings other than lateral ones for the connections to pass through.