1.

Conference Proceedings
Conference Proceedings
1. Positron Annihilation Spectroscopic Studies of 6H Silicon Carbide
Hu, Y.F. ; Lam, C.H. ; Ling, C.C. ; Fung, S. ; Beling, C.D. ; Weng, H.M.
Pub. info.: Positron annihilation, ICPA-12 : Proceedings of the 12th International Conference on Positron Annihilation, August 6-12, 2000, München, Germany.  pp.120-122,  2001.  Zuerich, Switzerland.  Trans Tech Publications
Title of ser.: Materials science forum
Ser. no.: 363-365
2.

Conference Proceedings
Conference Proceedings
2. Characterizing Porosity In Nanoporous Thin Films Using Positronium Annihilation Lifetime Spectroscopy
Sun, J.N. ; Gidley, D.W. ; Hu, Y.F. ; Frieze, W.E. ; Yang, S.
Pub. info.: Organic inorganic hybrid materials-2002 : symposium held April 1-5, 2002, San Francisco, California, U.S.A..  pp.311-322,  2002.  Warrendale, PA.  Materials Research Society
Title of ser.: Materials Research Society symposium proceedings
Ser. no.: 726
3.

Conference Proceedings
Conference Proceedings
3. GaN Thin Films on SiC Substrates Studied Using Variable Energy Positron Annihilation Spectroscopy
Hu, Y.F. ; Shan, Y.Y. ; Beling, C.D. ; Fung, S. ; Xie, M.H. ; Cheung, S.H. ; Tu, J. ; Brauer, G. ; Anwand, W. ; Tong, D.S.Y.
Pub. info.: Positron annihilation, ICPA-12 : Proceedings of the 12th International Conference on Positron Annihilation, August 6-12, 2000, München, Germany.  pp.478-480,  2001.  Zuerich, Switzerland.  Trans Tech Publications
Title of ser.: Materials science forum
Ser. no.: 363-365
4.

Technical Paper
Technical Paper
4. Motivating Quasi-Newton Updates by Preconditioned Conjugate Gradient Methods
Hu, Y.F. ; STOREY, C.
Pub. info.: NASA Technical Reports.  pp.1-25,  1991.  National Aeronautics and Space Adminstration
5.

Technical Paper
Technical Paper
5. A Global Convergence Result for Conjugate Gradient Mehods
Hu, Y.F. ; Storey, C.
Pub. info.: NASA Technical Reports.  pp.1-10,  1990.  National Aeronautics and Space Adminstration
6.

Technical Paper
Technical Paper
6. Projected Quasi-Newton Updates
Hu, Y.F. ; Storey, C.
Pub. info.: NASA Technical Reports.  pp.1-11,  1990.  National Aeronautics and Space Adminstration
7.

Technical Paper
Technical Paper
7. Preconditioned Low-order Newton Methods
Hu, Y.F. ; Storey, C.
Pub. info.: NASA Technical Reports.  pp.1-24,  1992.  National Aeronautics and Space Adminstration