In a conformance testing environment, an implementation under test (IUT) communicates with multiple entities. A tester may have differing degrees of control on the interactions between these entities and the IUT: directly controllable, semicontrollable, or uncontrollable. Semicontrollable inputs most likely render portions of an IUT untestable. In addition, multiple communicating entities may c...

Transformer vibration monitoring technique has been known to be safe, stable and resistant interference. Based on the theories of transformer its origins, this study focuses equivalent mathematical model vibration, signal characteristics, as well system for summarize research findings over recent years. A series intelligent technologies have adopted reach certain diagnoses outcomes; however, th...

As the infrastructure for people’s production and life, stable operation of power facilities is very important. a key equipment in facilities, transformers have become important daily maintenance sector. In past, electric personnel mostly used on-site visual inspection to preliminarily judge whether transformer operating normally. The disadvantage this method inaccuracy. A condition monitoring ...

We study a general scenario where confidential information is distributed among a group of agents who wish to share it in such a way that the data becomes common knowledge among them but an eavesdropper intercepting their communications would be unable to obtain any of said data. The information is modelled as a deck of cards dealt among the agents, so that after the information is exchanged, a...

By analyzing the propagating behavior of the supermodes in a coupled-waveguide system, we have derived a universal criterion for designing adiabatic mode transformers. The criterion relates epsilon, the fraction of power scattered into the unwanted mode, to waveguide design parameters and gives the shortest possible length of an adiabatic mode transformer, which is approximately 2/piepsilon1/2 ...

Risk assessment for power transformer is an important means to guide the condition based maintenance of transformer and enhance the reliability of power system operation, but also to strengthen the power transformer to provide an important basis for quality control. In this paper, an index system for comprehensive evaluation of transformer is put forward and a risk assessment model for power tr...

In this paper, we present a novel approach to text mining that helps to build intelligent user interfaces for recommender and information retrieval systems. The main problem for the user in information retrieval is that he must have almost perfect knowledge of the domain and the domain terminology. Our approach eases this burden by showing a way how to encode domain knowledge so that an informa...

One of the most basic linac operation tools is a beam current transformer. Using outstanding materials, the latest low-noise amplifiers, and some good ideas, a universal current monitoring system has been developed and installed at the UNILAC at GSI. With a dynamic range of 112 dB, covering the low-current range down to 100 nA peak to peak at S/N=1, as well as 25 mA pulses, provided for high-cu...