Results 21 to 30 of about 708,486 (305)
Non-spherical collapse of an air bubble subjected to a lithotripter pulse [PDF]
, 2008 In order to better understand the contribution of bubble collapse to stone comminution in shockwave lithotripsy, the shockinduced and Rayleigh collapse of a spherical air bubble is investigated using numerical simulations, and the free-field collapse ...
Bailey, Michael R. +3 more
core +1 more source
Numerical simulations of non-spherical bubble collapse [PDF]
, 2009 A high-order accurate shock- and interface-capturing scheme is used to simulate the collapse of a gas bubble in water. In order to better understand the damage caused by collapsing bubbles, the dynamics of the shock-induced and Rayleigh collapse of a ...
Colonius, Tim, Johnsen, Eric
core +1 more source
Pressure-Tuned Collapse of the Mott-Like State in Ca_{n+1}Ru_nO_{3n+1} (n=1,2): Raman Spectroscopic Studies [PDF]
, 2002 We report a Raman scattering study of the pressure-induced collapse of the Mott-like phases of Ca_3Ru_2O_7 (T_N=56 K) and Ca_2RuO_4 (T_N=110 K). The pressure-dependence of the phonon and two-magnon excitations in these materials indicate: (i) a pressure ...
C. S. Snow +11 more
core +1 more source
Transitions in Pressure Collapsed Clathrate Hydrates
The Journal of Physical Chemistry B, 2015 Type II clathrate hydrates (CHs), or ice clathrates, are inclusion compounds in which a hydrogen-bonded cage-like structure of H2O accommodates molecules of suitable size, known as "guest molecules". CHs have similar local geometrical arrangements of the hydrogen-bonded water network as ice and both are known to collapse to amorphous states on ...
Ove, Andersson, Yasuhiro, Nakazawa
openaire +2 more sources
COLLAPSE OF TUBES BY EXTERNAL PRESSURE [PDF]
, 1962 The problem of tube collapse by external pressure has been investigated experimentally. A graphical solution developed to simplify inelastic collapse design problems was shown to agree with the test results. The von Karman reduced modulus was used in the graphical solution to correct for the stress redistribution caused by yielding.
Kennedy, C. R., Venard, J. T.
openaire +3 more sources
A review of karst collapse mechanisms
Carsologica Sinica, 2023 Karst collapse is a global geohazard and has been reported to occur in 23 countries, including China, the United States of America, Canada, South Africa, Italy, France, the United Kingdom, Germany, Russia, and Turkey.
Xiaozhen JIANG +6 more
doaj +1 more source
Gravitationally Collapsing Shells in (2+1) Dimensions [PDF]
, 2006 We study gravitationally collapsing models of pressureless dust, fluids with pressure, and the generalized Chaplygin gas (GCG) shell in (2+1)-dimensional spacetimes.
E. Poisson +9 more
core +2 more sources
Instability of black hole formation under small pressure perturbations [PDF]
, 2012 We investigate here the spectrum of gravitational collapse endstates when arbitrarily small perfect fluid pressures are introduced in the classic black hole formation scenario as described by Oppenheimer, Snyder and Datt (OSD) [1].
A Ori +44 more
core +3 more sources
Uncertainty Evaluation of Safe Mud Weight Window Utilizing the Reliability Assessment Method
Energies, 2019 Due to the uncertainty of formation properties and improper wellbore stability analysis methods, the input parameters are often uncertain and the required mud weight to prevent wellbore collapse is too large, which might cause an incorrect result ...
Tianshou Ma +3 more
doaj +1 more source
Meitan xuebao, 2023 The instability and collapse of drainage boreholes is one of the key problems that hinder the efficient extraction of coal-bed methane (CBM). In order to solve the problem of instability and collapse of extraction boreholes in soft coal seams, based on ...
Xuebo ZHANG +4 more
doaj +1 more source