We present an approach to detect network configuration errors, which combines the benefits of two prior approaches. Like prior techniques that analyze configuration files, our approach can find errors proactively, before the configuration is applied, and answer “what if” questions. Like prior techniques that analyze data-plane snapshots, our approach can check a broad range of forwarding proper...

An induced draft fan frequency converter fault during the operation of a CFB unit, furnace pressure fluctuates greatly in process switching from conversion mode to power automatically. By mean analyzing reasons abnormal event, corresponding improvement measures were put forward and experience lessons also summarized. It provides reference for preventing occurrence such events dealing with simil...

This document defines two new DHCPv6 messages: Reconfigure-Request and Reconfigure-Reply. The Reconfigure-Request message is sent by a DHCPv6 relay agent to notify a DHCPv6 server about a configuration information change, so that the DHCPv6 server can send a Reconfigure message accordingly. The Reconfigure-Reply message is used by the server to acknowledge the receipt of the Reconfigure-Request...

In a patient with endocarditis and significant aortic insufficiency, two-dimensional echocardiography revealed an abnormal mitral valve configuration with division of the valve into two separate orifices. At autopsy, a double orifice mitral valve with two sets of valve leaflets was observed. Appreciation of this echocardiographic abnormality is important because double orifice mitral valve is a...

This document defines two new DHCPv6 messages: Reconfigure-Request and Reconfigure-Reply. The Reconfigure-Request message is sent by a DHCPv6 relay agent to notify a DHCPv6 server about a configuration information change, so that the DHCPv6 server can send a Reconfigure message accordingly. The Reconfigure-Reply message is used by the server to acknowledge the receipt of the Reconfigure-Request...

The root canal anatomy of mandibular incisors can present a number of variations . This case report illustrates the abnormal configuration and successful non-surgical endodontic management of complex canal systems in mandibular lateral incisors.

OBJECTIVE To prospectively investigate the healing process of meniscal repair with plain magnetic resonance imaging (MRI) and indirect MR arthrography and to compare the two methods. MATERIALS AND METHODS Twenty patients with an arthroscopic meniscal repair without clinical symptoms underwent conventional and indirect MR arthrography of the affected knee, 3, 6 and 12 months after the index op...

A two-dimensional echocardiographic manifestation of a ruptured right sinus of Valsalva aneurysm is described in this case report. The ultrasono-cardiotomograms demonstrated the aneurysm cut longitudinally and protruding into the outflow tract of the right ventricle. The configuration of the aneurysm was consistent with the contrast medium-filled sinus demonstrated by angiocardiography. In syst...