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  1. No Access

    Chapter

    Raman Scattering Studies of Optical Phonons in GaAs/AlAs and GaAs/AlxGa1-xAs Superlattices

    It is weL.L. known from the phonon dispersion curves of bulk GaAs and AlAs that though their acoustic branches basically overlap, the optical branches do not. As a consequence, in GaAs/AlAs superlattices the a...

    Z. P. Wang, H. X. Han, G. H. Li in Light Scattering in Semiconductor Structur… (1991)

  2. No Access

    Article

    Urea N uptake efficiency of ryegrass (Lolium perenne L.) in the presence of urease inhibitors

    A greenhouse experiment was conducted to study the comparative efficiency of urea as an N fertilizer with and without the addition of different urease inhibitors. Ryegrass (Lolium perenne L.) was used as the test...

    Li Liantie, Z. P. Wang, O. Van Cleemput, L. Baert in Biology and Fertility of Soils (1993)

  3. No Access

    Article

    Methane emission and entrapment in flooded rice soils as affected by soil properties

    Laboratory incubation experiments were conducted to study the effects of soil chemical and physical properties on CH4 emission and entrapment in 16 selected soils with a pH range of 4.7–8.1, organic matter conten...

    Z. P. Wang, C. W. Lindau, R. D. Delaune… in Biology and Fertility of Soils (1993)

  4. No Access

    Article

    Raman Scattering from [(CdSe)m(ZnSe)n]p-ZnSe Quantum Wells

    Raman scattering from a (CdSe)m(ZnSe)n-ZnSe strained quantum well structure, composed of (CdSe)m(ZnSe)n as well layers and thick ZnSe as barrier layers, is presented in this report. Two kinds of ZnSe-like LO phon...

    Z. P. Wang, H. X. Han, Z. X. Liu, W. T. Qin, Z. L. Peng… in MRS Online Proceedings Library (1993)

  5. No Access

    Article

    Photoluminescence and Raman Scattering from (CdSe)m(ZnSe)n-ZnSe Multiple Quantum Wells under Hydrostatic Pressure

    The photoluminescence and Raman scattering of {[(CdSe)1(ZnSe)3]14-(ZnSe)130} × 5 multiple quantum well structure have been investigated at 77 K and under hydrostatic pressure up to 7 GPa. Resonant excitations hav...

    J.Q. Zhang, Z.X. Liu, Z.P. Wang, H.X. Han, G.H. Li… in MRS Online Proceedings Library (1995)

  6. No Access

    Article

    Raman Scattering and Photoluminescence of Spontaneously Ordered Ga0.5In0.5P Alloy

    Samples of the spontaneously ordered Ga0.5In0.5P alloys were grown by the MOCVD method on [001]-oriented GaAs substrates. The thickness of the epitaxal layer is about 2 μm. Raman scattering and photoluminescence ...

    G. H. Li, Z. X. Liu, H. X. Han, Z. P. Wang, J. R. Dong… in MRS Online Proceedings Library (1996)

  7. No Access

    Article

    Nitrous oxide and methane transport through rice plants

    The separate closed chamber technique was used to study the potential of rice plants for transporting N2O and CH4 produced in soil to the atmosphere. The results indicate that N2O produced in soil can be conduct...

    K. W. Yu, Z. P. Wang, G. X. Chen in Biology and Fertility of Soils (1997)

  8. No Access

    Article

    Characteristics of methane oxidation in a flooded rice soil profile

    Laboratory experiments were conducted to study the variation of CH4 oxidation patterns in flooded rice soil profiles. The results indicated that surface soil presented the strongest CH4 oxidation activities as sh...

    Z.P. Wang, D. Zeng, W.H. Patrick Jr. in Nutrient Cycling in Agroecosystems (1997)

  9. No Access

    Chapter

    Effects of organic and N fertilizers on methane production potential in a Chinese rice soil and its microbiological aspect

    An incubation experiment to determine the effects of organic and chemical N fertilizers on methane (CH4) production potential in a Chinese flooded rice soil was conducted. Organic matter, added as rice straw and ...

    A. X. Hou, Z. P. Wang, G. X. Chen… in Methane Emissions from Major Rice Ecosyste… (2000)

  10. No Access

    Article

    Effects of Organic and N Fertilizers on Methane Production Potential in a Chinese Rice Soil and its Microbiological Aspect

    An incubation experiment to determine the effects of organic and chemical N fertilizers on methane (CH4) production potential in a Chinese flooded rice soil was conducted. Organic matter, added as rice straw and ...

    A.X. Hou, Z.P. Wang, G.X. Chen, W.H. Patrick Jr. in Nutrient Cycling in Agroecosystems (2000)

  11. No Access

    Article

    Corrosion wear behavior of Al-bronzes in 3.5% NaCl solution

    The corrosion wear behaviors of two aluminum bronzes, Cu-14Al-X and QAl9-4, in 3.5% NaCl solution were investigated on a pin-on-block reciprocating tester. It was found that the wear loss of the bronzes in 3.5...

    W. S. Li, Z. P. Wang, Y. Lu, L. H. Yuan in Journal of Materials Engineering and Performance (2006)

  12. No Access

    Article

    Polaron effects on excitons in parabolic quantum wells: fractional-dimension variational approach

    Polaron effects on excitons in parabolic quantum wells are studied theoretically by using a variational approach with the so-called fractional dimension model. The numerical results for the exciton binding ...

    Z. P. Wang, X. X. Liang, X. Wang in The European Physical Journal B (2007)

  13. No Access

    Article

    Diode-end-pumped passively mode-locked Nd:LuVO4 laser with a semiconductor saturable-absorber mirror

    A diode pumped passively mode-locked Nd:LuVO4 laser with a semiconductor saturable-absorber mirror (SESAM) is demonstrated. The mode-locked pulses have a pulse duration of about 8.8 ps and a repetition rate of 15...

    H.H. Yu, H.J. Zhang, D.Y. Tang, Z.P. Wang, J.Y. Wang, Y.G. Yu… in Applied Physics B (2008)

  14. No Access

    Article

    Exploration of dynamical regimes of irradiated small protonated water clusters

    We explore from a theoretical perspective the dynamical response of small water clusters, (H2O)nH3O+ with n=1,2,3, to a short laser pulse for various frequencies, from infrared (IR) to ultra-violet (UV) and inten...

    U. F. Ndongmouo Taffoti, P. M. Dinh, P.-G. Reinhard… in The European Physical Journal D (2010)

  15. No Access

    Article

    Photoluminescence Studies of [(CdSe)1(ZnSe)2]9-ZnSeTe Multiple Quantum Wells Under High Pressure

    We have performed photoluminescence (PL) measurements at liquid nitrogen temperature under high pressure up to 5.5 GPa and in the temperature range 10-300 K at atmospheric pressure on (ZnSe)30(ZnSe0.92Te0.08)30(Z...

    Z. P. Wang, Z. X. Liu, H. X. Han, J. Q. Zhang, G. H. Li… in MRS Online Proceedings Library (2011)

  16. No Access

    Article

    Large-scale synthesis of hierarchical alpha-FeOOH flowers by ultrasonic-assisted hydrothermal route

    In this paper, we report a facile, an environmental friendly ultrasonic-assisted hydrothermal route for preparation of goethite flower structures using Fe nanopowders at low temperature (85°C). The flower stru...

    H. F. Chen, G. D. Wei, X. Han, S. Li… in Journal of Materials Science: Materials in… (2011)

  17. No Access

    Article

    Continuous-wave and passively Q-switched Nd:LYSO lasers

    Continuous-wave (CW) and passively Q-switched performance of a Nd-doped oyorthosilicate mixing crystal, (Nd0.005Lu0.4975Y0.4975)2SiO5 (Nd:LYSO), were reported. As a result, new dual-wavelength all-solid-state las...

    S. D. Zhuang, X. D. Xu, Z. P. Wang, D. Z. Li, H. H. Yu, J. Xu, L. Guo… in Laser Physics (2011)

  18. No Access

    Article

    Investigation of wax and paper materials for the fabrication of paper-based microfluidic devices

    Paper-based microfluidic devices hold great potential in today’s microfluidic applications. They offer low costs, simple and quick fabrication processes, ease of uses, etc. In this work, several wax and paper ...

    Z. W. Zhong, Z. P. Wang, G. X. D. Huang in Microsystem Technologies (2012)

  19. No Access

    Article

    Hydrogenic impurity bound polaron in a quantum dot quantum well structure

    A variational approach is used within the framework of effective mass approximation to study the binding energy of the hydrogenic impurity in a spherical quantum dot quantum well (QDQW) structure. The electron...

    L. Zhou, Y. **ng, Z. P. Wang in The European Physical Journal B (2012)

  20. No Access

    Article

    Engineering microfluidic concentration gradient generators for biological applications

    This paper reviews the latest developments in the design and fabrication of concentration gradient generators for microfluidics-based biological applications. New gradient generator designs and their underlyin...

    Alicia G. G. Toh, Z. P. Wang, Chun Yang, Nam-Trung Nguyen in Microfluidics and Nanofluidics (2014)

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