نتایج جستجو برای: well trajectory

تعداد نتایج: 1562653  

1999
XIAOFENG WANG DUO WANG

In this paper a closing lemma for C1 nonsingular endomorphisms equivariant under free actions of finite-groups is proved. Hence a recurrent trajectory, as well as all of its symmetric conjugates, of a C1 nonsingular endomorphism equivariant under a free action of a finite group can be closed up simultaneously by an arbitrarily small C1 equivariant perturbation.

2000
ROBERT J. VANDERBEI

In this first paper, we consider how to putt a golf ball on an uneven green so that it arrives at the cup with minimal speed.

Journal: :international journal of robotics 0
bahram tarvirdizadeh department of mechatronics eng., faculty of new sciences and technologies, university of tehran, tehran, iran khalil alipour department of mechatronics eng., faculty of new sciences and technologies, university of tehran, tehran, iran

this research focuses on proposing an optimal trajectory planning and control method of two link rigid-flexible manipulators (tlrfm) for dynamic object manipulation (dom) missions. for the first time, achievement of dom task using a rotating one flexible link robot was taken into account in [20]. the authors do not aim to contribute on either trajectory tracking or vibration control of the end-...

Determination of optimum location for drilling a new well not only requires engineering judgments but also consumes excessive computational time. Additionally, availability of many physical constraints such as the well length, trajectory, and completion type and the numerous affecting parameters including, well type, well numbers, well-control variables prompt that the optimization approaches b...

Journal: :Sustainability 2023

Teaching is an emotion-laden process during which teachers are inevitably confronted with emotional disturbance. This study examines how Chinese EFL transform disturbance into well-being through interpersonal emotion regulation (IER). Previous research has examined teacher at individual level, yet the perspective not been sufficiently adopted. In order to have in-depth investigation of teachers...

2015
Yuejun Guo Qing Xu Yu Yang Sheng Liang Yu Liu Mateu Sbert

In this paper, we propose a new technique to enhance the trajectory shape analysis by explicitly considering the speed attribute of trajectory data, as an effective and efficient way for anomaly detection. An object motion trajectory is mathematically represented by the Kernel Density Estimation, taking into account both the shape of the trajectory and the speed of the moving object. An unsuper...

Journal: :Journal of Natural Gas Science and Engineering 2021

To achieve efficient recovery of subsurface energy resources, a suitable trajectory needs to be identified for the production well. In this study, new approach is presented automated identification optimum well trajectories in heterogeneous oil/gas reservoirs. The optimisation procedures are as follows. First, productivity potential map generated based on site characterisation data reservoir (w...

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