Electronics and Telecommunications Research Institute

You-Hee Choi

Gwang-Ja Jin

Oh-Cheon Kwon

Seung-Youn Lee

Joa-Hyoung Lee

Gyu-Sang Shin

Disclosed herein are a surge prevention apparatus and method for a centrifugal compressor. The surge prevention apparatus includes a control unit for controlling a gas provision operation based on a flow rate and pressure on an inlet side of a compressor and pressure on an outlet side of the compressor, and a gas provision unit for storing a part of gas flowing into the inlet side of the compressor and providing the stored gas to the inlet side in response to a control signal from the control unit.

Surge prevention apparatus and method for centrifugal compressor

Disclosed herein are an apparatus and method for preventing a collision between vessels. The apparatus includes a position information processing unit, an expected collision route calculation unit, an escape route calculation unit, and a control unit. The position information processing unit collects information about the position of a reference vessel using a mobile terminal and receives information about a counterpart vessel from a user. The expected collision route calculation unit calculates an expected collision route based on the information. The escape route calculation unit calculates escape routes if the possibility of a collision is above a set value. The control unit provides the escape routes, compares changes in actually measured positions of the vessels with the escape routes, and manages navigation on the results of the comparison between changes in the actually measured positions of the vessels and the escape routes.

Apparatus and method for preventing collision between vessels

An apparatus for assembling EJB components is provided. The apparatus includes a composite palette for browsing and managing the EJB components, and an architecture diagram editor module for dragging and dropping the EJB components shown in the composite palette or new component and connector icons to visually generate the architecture based on the C2 style. The apparatus further includes a component property editor module for describing properties and specifications of the EJB components in an architecture, and a glue code and composite EJB generator module for generating composite EJB component code and related glue code.

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Daejeon, South Korea

You-Hee Choi