, a new superconducting gravimeter with a cryocooler was installed to replace the former device at the Syowa station in Antarctica. The new gravimeter has a high sensitivity of one nano-gal and is being used to survey the earth's core in the Global Geodynamics Project. A new type of diaphragm was confirmed to well isolate the vibration from the refrigerator cold-head and effectively prevent solid air contamination. A remote monitoring system from Japan is also going to be installed.
This document provides a solution to the topology problem for the Middlebox Communication (MIDCOM) method. We define two new messages: Selection Message, which is exchanged between end users, and Request Message, which is exchanged between the Middlebox (MB) and Middlebox Agent m). These messages enable an MA to discover appropriate MBs that should be controlled for communication between end users.
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