In the process of high flow rate fracture and gas production, sealing performance premium connection decreases due to dynamic load vibration downhole tubing strings, which may cause accidents. Existing static analysis methods cannot effectively explain this phenomenon. The main objective paper is propose a novel analytical method for evaluating connection. paper, model surfaces established base...

This paper presents the Fourier and wavelet characterization of vibratio...

In recent several years, the tensor force, one of most important components nucleon-nucleon has been implemented in time-dependent density functional theories and it found to influence many aspects low-energy heavy-ion reactions, such as dissipation dynamics, sub-barrier fusions, low-lying vibration states colliding partners. Especially, effects force on fusion reactions have investigated from ...

It is noted that the results of recent experiments on the enhancement of turbulent kinetic energy (TKE) dissipation below surface waves can be stated as follows. TKE dissipation is enhanced by a factor 15Hws/z at depths 0.5Hws < z < 20Hws with respect to the wall-layer result ǫ = u ∗w/κz, where u∗w is the friction velocity in water and Hws is the significant windsea wave height. For open ocean ...

The magnetic flux pinning phenomenon enables high-$Q$ trapping of a magnet above superconductor. In practice, the trapped can undergo nonlinear mode coupling and dissipation as its vibration induce variations field vortex displacement on superconductor surface. Here we study interactions between vibrational modes levitated mirror superconducting disk in vacuum conditions. We observe that by exc...

This paper introduces a peculiar approach of designing Static Random Access Memory (SRAM) memory cell in Quantum-dot Cellular Automata (QCA) technique. The proposed design consists of one 3-input MG, one 5-input MG in addition to a (2×1) Multiplexer block utilizing the loop-based approach. The simulation results reveals the excellence of the proposed design. The proposed SRAM cell achieves 16% ...