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- Sijie Gao, Robert M. Wald, Enrico
- 2008

We investigate both the “physical process” version of the first law and the second law of black hole thermodynamics for charged and rotating black holes. We begin by deriving general formulas for the… (More)

Late-time particle creation from gravitational collapse to an extremal Reissner-Nordström black hole

- Sijie Gao
- 2008

We investigate the late time behavior of particle creation from an extremal Reissner-Nordstrom (RN) black hole formed by gravitational collapse. We calculate explicitly the particle flux associated… (More)

The problem of a spherically symmetric charged thin shell of dust collapsing gravitationally into a charged Reissner-Nordström black hole in d spacetime dimensions is studied within the theory of… (More)

The first law of black hole mechanics is derived from the EinsteinMaxwell Lagrangian by comparing two infinitesimally nearby stationary black holes. With similar arguments, the first law of black… (More)

- Sijie Gao
- 2008

The first law of black hole mechanics is derived from the Einstein-Maxwell (EM) Lagrangian by comparing two infinitesimally nearby stationary black holes. With similar arguments, the first law of… (More)

- X Y Ni, Sijie Gao, Daniel W Pritchard
- Biotechnology and bioengineering
- 1995

We report experimental data of mass transfer of oxygen into yeast resuspension in a pulsed baffled bioreactor. The bioreactor consists of a 50-mm-diameter column with the presence of a series of… (More)

- Sijie Gao, Robert M. Wald, Enrico
- 2008

Two theorems related to gravitational time delay are proven. Both theorems apply to spacetimes satisfying the null energy condition and the null generic condition. The first theorem states that if… (More)

- Xiaoning Wu, Sijie Gao
- 2007

The tunneling effect near a weakly isolated horizon (WIH) has been studied. By applying the null geodesic method of Parikh and Wilczek and Hamilton-Jacibi method of Angheben et al. to a weakly… (More)

- Minyong Guo, Sijie Gao
- 2016

It has been shown that ultraenergetic collisions can occur near the horizon of an extremal Kerr black hole. Previous studies mainly focused on geodesic motions of particles. In this paper, we… (More)

A recently developed crystal-mechanics-based constitutive model for polycrystalline shape-memory alloys (Thamburaja and Anand [1]) is shown to quantitatively predict the in-plane anisotropy of… (More)