Browsing by Author "Singh, Vijay P."

Now showing items 41-60 of 100

    • Evaluation of Bed Load in a Gravel-Bed River 
      Afzalimehr, Hossein; Dehghani, Amir Ahmad; Pourhosein, Mehrdad; Singh, Vijay P. (Scientific & Academic Publishing, 2015)
      Bed load transport is needed for river training works, reservoir management, watershed management, and ecosystem maintenance. A number of equations have been developed for determining bed load transport, primarily for ...
    • Experimental Investigation of Influence of Vegetation on Flow Turbulence 
      Afzalimehr, Hossein; Mohammadzade, Nazanin; Singh, Vijay P. (Scientific & Academic Publishing, 2015)
      Vegetation in channels, rivers, reservoirs, and wetlands alters the flow turbulence characteristics. Vegetation has both positive and negative effects, depending on the objective of the hydraulic conduit. For example, it ...
    • A fractional dispersion model for overland solute transport 
      Deng, Zhi-Qiang; de Lima, M. Isabel P.; Singh, Vijay P.; de Lima, Jo?�o L. M. P. (American Geophysical Union, 2006-03-18)
      Using the kinematic-wave overland flow equation and a fractional dispersion-advection equation, a process-oriented, physically-based model is developed for overland solute transport. Two scenarios, one consisting of downslope ...
    • Future Climate Data from RCP 4.5 and Occurrence of Malaria in Korea 
      Hong, Seung Jin; Kim, Duckgil; Kim, Hung Soo; Kim, Soojun; Kwak, Jaewon; Lee, Keonhaeng; Noh, Huiseong; Singh, Vijay P.; Kang, Narae (2014-10-15)
      Since its reappearance at the Military Demarcation Line in 1993, malaria has been occurring annually in Korea. Malaria is regarded as a third grade nationally notifiable disease susceptible to climate change. The objective ...
    • Future Climate Data from RCP 4.5 and Occurrence of Malaria in Korea 
      Kwak, Jaewon; Noh, Huiseong; Kim, Soojun; Singh, Vijay P.; Hong, Seung Jim; Kim, Duckgil; Lee, Keonhaeng; Kang, Narae; Kim, Hung Soo (2014)
      Since its reappearance at the Military Demarcation Line in 1993, malaria has been occurring annually in Korea. Malaria is regarded as a third grade nationally notifiable disease susceptible to climate change. The objective ...
    • Future Climate Data from RCP 4.5 and Occurrence of Malaria in Korea 
      Kwak, Jaewon; Noh, Huiseong; Kim, Soojun; Singh, Vijay P.; Hong, Seung Jin; Kim, Duckgil; Lee, Keonhaeng; Kang, Narae; Kim, Hung Soo; Tchounwou, Paul B. (International Journal of Environmental Research and Public Health, 2014)
    • The Grading Entropy-based Criteria for Structural Stability of Granular Materials and Filters 
      Fityus, Stephen; Imre, Emoke; Lorincz, Janos; Singh, Vijay P.; Talata, Istvan; Tarnai, Tibor; Trang, Phong Q. (2015-05-04)
      This paper deals with three grading entropy-based rules that describe different soil structure stability phenomena: an internal stability rule, a filtering rule and a segregation rule. These rules are elaborated on the ...
    • Have GRACE satellites overestimated groundwater depletion in the Northwest India Aquifer? 
      Long, Di; Chen, Xi; Scanlon, Bridget R.; Wada, Yoshihide; Hong, Yang; Singh, Vijay P.; Chen, Yaning; Wang, Cunguang; Han, Zhongying; Yang, Wenting (Scientific Reports, 2016)
    • Hybrid fuzzy and optimal modeling for water quality evaluation 
      Wang, Dong; Singh, Vijay P.; Zhu, Yuansheng (American Geological Union, 2007-05-08)
      Water quality evaluation entails both randomness and fuzziness. Two hybrid models are developed, based on the principle of maximum entropy (POME) and engineering fuzzy set theory (EFST). Generalized weighted distances are ...
    • Hydrological Drought Atlas for the State of Texas For Durations from 3 Months to 36 Months and Return Periods from 5 Years to 100 Years 
      Rajsekhar, Deepthi; Singh, Vijay P.; Mishra, Ashok (Texas Water Resources Institute, 2013-02)
      Maps depicting the spatial variation of hydrological drought severity for Texas are presented in this report. The return periods chosen are 5, 10, 25, 50 and 100 years for drought durations of 3, 6, 9, 12, 18, 24 and 36 ...
    • Improved Finite-Element Method for Solute Transport 
      Singh, Vijay P.; Yu, Fang Xin (1995-02)
      Five major modifications to the Galerkin finite-element formulation for solute transport were made in this study: (1) A mixed formulation for the time-derivative term of the governing equation was developed by combining ...
    • Improved Modeling of Evapotranspiration using Satellite Remote Sensing at Varying Spatial and Temporal Scales 
      Long, Di (2012-10-19)
      The overall objective of the dissertation was to improve the spatial and temporal representation and retrieval accuracy of evapotranspiration (ET) using satellite imagery. Specifically, (1) aiming at improving the spatial ...
    • Integrating Entropy and Copula Theories for Hydrologic Modeling and Analysis 
      Hao, Zengchao; Singh, Vijay P. (2015-04-15)
      Entropy is a measure of uncertainty and has been commonly used for various applications, including probability inferences in hydrology. Copula has been widely used for constructing joint distributions to model the dependence ...
    • A Kinematic Model for Surface Irrigation 
      Sherman, Bernard; Singh, Vijay P. (American Geophysical Union, 1978-04)
      A kinematic wave model is developed to study surface irrigation. Depending on the variability of infiltration and the kinematic wave friction parameter, three cases are distinguished. Explicit analytical solutions are ...
    • A kinematic model for surface irrigation: An extension 
      Sherman, Bernard; Singh, Vijay P. (American Geophysical Union, 1982-06)
      The kinematic model for surface irrigation, reported previously by Sherman and Singh (1978), is extended. Depending upon the duration of irrigation and time variability of infiltration, three cases are distinguished. ...
    • A kinematic model for surface irrigation: Verification by experimental data 
      Singh, Vijay P.; Ram, Rama S. (American Geophysical Union, 1983-12)
      A kinematic model for surface irrigation is verified by experimental data obtained for 31 borders. These borders are of varied characteristics. Calculated values of advance times, water surface profiles when water reaches ...
    • Kinematic wave model for transient bed profiles in alluvial channels under nonequilibrium conditions 
      Tayfur, Gokmen; Singh, Vijay P. (American Geophysical Union, 2007-12-27)
      Transient bed profiles in alluvial channels are generally modeled using diffusion (or dynamic) waves and assuming equilibrium between detachment and deposition rates. Equilibrium sediment transport can be considerably ...
    • Kinematic wave model for water movement in municipal solid waste 
      Bendz, David; Singh, Vijay P.; Rosqvist, H?�kan; Bengtsson, Lars (American Geophysical Union, 1998-11)
      The movement of water in a large (3.5 m3) undisturbed sample of 22-year-old municipal solid waste has been modeled using a kinematic wave approximation for unsaturated infiltration and internal drainage. The model employs ...
    • Kinematic wave model of bed profiles in alluvial channels 
      Tayfur, Gokmen; Singh, Vijay P. (American Geophysical Union, 2006-06-21)
      A mathematical model, based on the kinematic wave (KW) theory, is developed for describing the evolution and movement of bed profiles in alluvial channels. The model employs a functional relation between sediment transport ...
    • Long Lead Time Drought Forecasting Using a Wavelet and Fuzzy Logic Combination Model: A Case Study in Texas 
      Mishra, Ashok K.; Ozger, Mehmet; Singh, Vijay P. (American Meterological Society, 2012-02)
      Drought forecasting is important for drought risk management. Considering the El Niño–Southern Oscillation (ENSO) variability and persistence in drought characteristics, this study developed a wavelet and fuzzy logic (WFL) ...