Results 51 to 60 of about 131,967 (276)
Gravitational Field of a Spinning Cosmic String
, 2008 We study the effect of internal space rotation on the gravitational properties of infinite straight and stationary cosmic string. From the approximate solution of Einsten equations for the spinning Q-lump string we obtain long range gravitational ...
A. Abrikosov +7 more
core +1 more source
, 1997 We solve the Cauchy problem for the relativistic closed string in Minkowski space $M^{3+1}$, including the cases where the initial data has a knot like topology.
Barbashov +19 more
core +2 more sources
Advanced Functional Materials, EarlyView.This research presents a novel implantable bio‐battery, GF‐OsG, tailored for diabetic bone repair. GF‐OsG generates microcurrents in high‐glucose conditions to enhance vascularization, shift macrophages to the M2 phenotype, and regulate immune responses.
Nanning Lv +10 more
wiley +1 more source
Transient Response and Strength Analysis of Perforating String
Shiyou jixie, 2017 For a better understanding of dynamic response and stress intensity safety of the perforating tubular string under detonation loads, a finite element model of perforating tubular string has been established by using ANSYS.
Zhang Wei +4 more
doaj
Single and twin string cavitation swirling flows in multi-hole mini-sac diesel injector and sprays
Journal of Fluid Science and Technology, 2023 A new design of fuel injector for diesel engines is expected to enhance fuel spray atomization at the end of the fuel injection for the reduction in particulate matter emission. It was pointed out that string cavitation may occur in a multi-hole mini-sac
Samsu Dlukha NURCHOLIK +7 more
doaj +1 more source
Low-velocity cosmic strings in accelerating universe
, 2011 The standard cosmological model supposes that the dominant matter component changes in the course of the evolution of the universe. We study the homogeneous and isotropic universe with non-zero cosmological constant in the epoch when the dominant matter component has a form of a gas of low-velocity cosmic strings.
Kuzmichev, V. E., Kuzmichev, V. V.
openaire +2 more sources
Velocity String Drainage Technology for Horizontal Gas Wells in Changbei
Processes, 2022 The Changbei gas field is dominated by wells with large horizontal displacement, which have exhibited high gas production performance at an early stage of development. With the decrease in reservoir pressure, the liquid loading in the gas well is relatively high and gas production rapidly decreases. Therefore, suitable drainage measures are required to
Wenbin Cai +3 more
openaire +1 more source
Thickness‐Dependent Skyrmion Evolution in Fe3GeTe2 During Magnetization Reversal
Advanced Functional Materials, EarlyView.Thickness‐ and field‐dependent magnetic domain behavior in 2D van der Waals Fe3GeTe2 is studied using Lorentz TEM and micromagnetic simulations. A patch‐like domain phase evolves from skyrmions during magnetization reversal, and step edges between thickness regions act as pinning sites.
Jennifer Garland +9 more
wiley +1 more source
Development of the Optimum Design Software for CT Velocity String
Shiyou jixie, 2018 There is no coiled tubing velocity string optimization design software in China, and the calculation model of foreign related software is old fashioned with difficult operation, whose function does not meet the on-site demand. To address the issue, using
He Huiqun +5 more
doaj
Shiyou jixie, 2023 The pull-setting internal packer usually needs to conduct overload setting,while the setting tool has the risk of being pulled apart due to insufficient strength itself,and there is also a problem of incapable of immediately conducting sealing test; to ...
Zhang Shibin +5 more
doaj