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Dropped objects are among the top ten causes of fatalities and serious injuries in the oil and gas industry (DORIS, 2016). Objects may be dropped during lifting or any other offshore operation. Concerns for health, safety, and the environment (HSE) as well as possible damage to structures require the prediction of where and how a dropped object moves underwater. In this paper, the authors propose...
In this paper, the method to get lane equation and vehicle desired path based on image information and multi-preview points is presented. And then a dynamic equation is established to characterize the vehicle lateral motion and tire lateral characteristics. And the constraint requirements of vehicle steering constraint and lateral acceleration constraint under vehicle stable situation are also considered...
Parametric resonance of offshore crane cable was predicted by using Mathieu equation to provide structural safety prediction during subsea lowering operation. This paper studied the predicting method of offshore crane cable to complement the safety management during subsea lowering operation. The offshore crane cable was modeled as a tensioned long cylindrical structure and Mathieu instability coefficients...
The proliferation of Web 2.0 technology, coupled with the advancements in social networking, have unraveled a new Internet information exchanging paradigm where every individual user involved is capable of publishing information at will and at any time, while also being able to filter and selectively receive any information they are interested in a timely manner. To facilitate this process, users...
Existing distributed XML-based pub-sub systems normally targeted on filtering precision, while lacked scalability and fault-tolerance concern. In a large-scale dynamic network, nodes may join/leave/fail at times, hence a scalable yet fault-tolerant architecture is crucial. In this paper, we proposed HOPE: a hypercube overlay based pub-sub architecture for efficient XML dissemination in large-scale...
In this paper, the channel capacity of a Multiple Input Multiple Output (MIMO) broadcast system is investigated under correlated fading environment where there exists a transmitter , a legitimate receiver and an eavesdrop, each node equipped with multiple antennas. We derive the secret capacity and its upper bound of the MIMO broadcast channel in detail by using the Information theory and random matrices...
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