Abstract: A survey of applications of optimization techniques in oil and gas pipeline engineering is presented. These applications include the optimal design, optimal expansion, optimal control and optimal ...

Abstract: Almost all submarine pipelines are currently laid on the sea floor. This practice is inherently expensive and the system is difficult to maintain and has a high possibility of excessive bending ...

Abstract: Mobility analysis of a novel 3-5R parallel mechanism family whose limb consists of a 2R and a 3R parallel subchain is performed by the aid of screw theory. A mobility criterion applicable ...

Abstract: Segmental bridges with unbonded prestressed tendons have some advantages over conventional concrete bridges, such as weather-independent construction and the corrosion protection of the prestressing tendons. This paper ...

Abstract: Reinforced concrete (RC) structural elements with box sections are commonly used in the horizontal and vertical structures of bridges. Reinforced concrete structures in bridges have often failed under the combined forces ...

Abstract: This paper addresses a basic problem which arises in the coordination of serial chain manipulators, namely, that of decomposing a given end effector velocity state into a set of joint rates. ...

Abstract: Robotic mechanisms in general can be of either serial-chain, parallel-chain, or hybrid (a combination of both parallel and serial chains) geometry. While it can be asserted that kinematic theories ...

Abstract: The effect of fuel injection timing relative to ignition timing on natural gas direct-injection combustion was studied by using a rapid compression machine (RCM). The ignition timing was fixed ...