The insulation of the high voltage equipment is deteriorated due to the partial discharges (PDs). So it is required to monitor PDs continuously for prediction of insulation life, replacement time and early indication of outages of HV power equipment. In this work, an optical network is used to detect and measure the PDs in a model transformer.

The aim of this work was to assess the microbiota (fungi and bacteria) and particulate matter in optical shops, contributing to a specific protocol to ensure a proper assessment. Air samples were collected through an impaction method. Surface and equipment swab samples were also collected side-by-side. Measurements of particulate matter were performed using portable direct-reading equipment. A ...

Most applications built upon vehicular communications (V2X) target on increasing traffic safety. They often require a direct communication between at least two vehicles equipped with a communication device. Thereby, a sufficient amount of equipped vehicles is necessary for assuring these applications’ functionality. Meanwhile, traffic management needs information about the state on the roads. T...

Realizing the important role that photonic switches can play in data-centric networks, a number of leading router and optical-equipment vendors are collaborating to combine the control plane of Multiprotocol Label Switching (MPLS) with the point-and-click provisioning capabilities of photonic switches. The resulting protocols known as multiprotocol lambda switching (MPlS) will enable equipment ...

Abstracf-The output of a simple statistical categorizer is used to improve recognit ion performance on a homogeneous data set. An array I$ initial weights contains a coarse description of the various classes; as the system cycles through a set of characters from the same source (a typewritten or printed page), the weights are modif ied to correspond more closely with the observed distributions....

We investigate the lead-lag relationship between growth of patent applications, growth of R&D, and growth of total sectoral employment for 270 German labour market regions over the period 1999-2005. Our unique panel dataset includes information on four two-digit industries, namely Chemistry, Transport equipment, Medical & Optical Equipment as well as Electrics & Electronics. The results obtaine...

In view of the serious environmental interference coal mine underground, inconvenient power supply underground equipment and existence passive serial series number existing F5G network network, explore a new all-optical redundancy technology networking scheme, realize multi-stage light branches mine, Solve problem low optical in anti-interference communication. Based on principle this paper exp...

In this paper, we propose an Adaptive Hybrid Transmission schemes for free space optical communication. Proposed algorithm utilizes hybrid mechanism which combines Multi-channel multicasting and unicast scheme to enhance not only service over service blocking probability but also reduce overall bandwidth consumption of the free space optical communication system which has very limited resources...

We have developed a novel design method in response to the “intra-EMC problem.” In portable equipment, noise generated from digital circuits in the equipment leaks into the receiver circuit, causing a deterioration in receiver sensitivity. In particular, since downsizing has resulted in the antennas within wireless communication equipment becoming ever closer to the noise source, a significant ...