Q. Y. Chen

Depth evolution of YBa2Cu3O7-d ultrathin films probed by X-ray photoemission spectroscopy (2006)

Seo, H. W., Chen, Q. Y., Van Der Heide, Paul, Chu, Wei-Kan

X-ray photoemission spectroscopy has been used to investigate the depth dependent crystal structures and chemical compositions of sequentially chemical-etched YBa2Cu3O7-d (YBCO) ultrathin film...

Epitaxial GaN Nanorods via Catalytic Capillary Condensation (2005)

Seo, H. W., Chen, Q. Y., Tu, L. W., Hsiao, C. L., Iliev, M. N., Chu, W. K.

Intrinsic catalytic process by capillary condensation of Ga-atoms into nanotrenches, formed among impinging islands during the wurzite-GaN thin film deposition, is shown to be an effective path to...

Characterizations of strain and defect free GaN nanorods on Si(111) substrates (2005)

Seo, H. W., Chen, Q. Y., Iliev, M. N., Chu, W. K., Tu, L. W., Hsiao, C. L., ...

GaN-nanorods grown on Si(111) substrates are found strain- and defect-free as characterized by micro Raman spectroscopy, secondary electron (SE) and cathode-luminescence (CL) imaging. The matrix...

Chain-oxygen ordering in twin-free YBa2Cu3O6+x single crystals driven by 20 keV electron irradiation (2005)

Seo, H. W., Chen, Q. Y., Iliev, M. N., Kolev, N., Welp, U., Wang, C., ...

We have examined the effects of 20 keV electron irradiation on [-Cu(1)-O(1)-]n chain oxygen arrangements in oxygen deficient but otherwise twin-free YBa2Cu3O6+x single crystals. Comparison of...

Direct Observation of Coexistence of Ferromagnetism and Superconductivity in RuSr2(Gd0.7Ce0.3)2Cu2O10 (2001)

Chen, S. Y., Shulman, J., Wang, Y. S., Cao, D. H., Wang, C., Chen, Q. Y., ...

Recent reports of the detecting of ferromagnetism and superconductivity in ruthenium-cuprates have aroused great interest. Unfortunately, whether the two antagonistic phenomena coexist in the same...

Triple sign reversal of Hall effect in HgBa_{2}CaCu_{2}O_{6} thin films after heavy-ion irradiations (1999)

Kang, W. N., Kang, B. W., Chen, Q. Y., Wu, J. Z., Bai, Y., Chu, W. K., ...

Triple sign reversal in the mixed-state Hall effect has been observed for the first time in ion-irradiated HgBa_{2}CaCu_{2}O_{6} thin films. The negative dip at the third sign reversal is more...

An HLA-A2 polyepitope vaccine for malenoma immunotherapy (1999)

Mateo, L. A., Gardner, J., Chen, Q. Y., Schmidt, C., Down, M., Elliott, S. L., ...

Reciprocal Theorem of Residual Stress and Inelastic Strain, (1998)

Lin, T. H., Lin, S. R., Wu, X. Q., Chen, Q. Y.

We consider a body to have an initial stress field. When the body is loaded beyond the elastic range, a plastic strain occurs in some part of the body. If the body is then unloaded, the plastic...

Micromechanics of High-Cycle Initiation of Fatigue Cracking Intermetallic Compounds. (1998)

Lin, T. H., Chen, Q. Y.

Tests have shown that ordered intermetallic compounds favor planar slip and tend to have no cross-slip or multi-slip. This was explained by the long Burger's vector in these ordered compounds. The...

Morphological, phenotypic and functional characteristics of a pure population of CD56+ CD16- CD3- large granular lymphocytes generated from human duodenal mucosa.

Pang, G, Buret, A, Batey, R T, Chen, Q Y, Couch, L, Cripps, A, ...

Interleukin-2 (IL-2)-dependent large granular lymphocytes (LGL) with a distinctive surface phenotype were generated from histologically normal duodenal biopsy tissues. Immunoperoxidase staining of...

Spectral Methods Based on Prolate Spheroidal Wave Functions for Hyperbolic PDEs

Chen, Q. Y.

Diabetic sera react with the glutamic acid decarboxylase molecule in a dimeric-oligomeric form

ROWLEY, M J, CHEN, Q Y, TEOH, K L, ZIMMET, P Z, TUOMI, T, KNOWLES, W J, ...

Glutamic acid decarboxylase (GAD) is a major autoantigen in insulin-dependent diabetes mellitus (IDDM). This was initially identified as a 64–65 kD molecule according to migration in gels after...