Results 91 to 100 of about 14,507 (274)

A new determination of higher-order QCD corrections to hadronic τ decays

Physics Letters B
We employ Levin-type sequence transformations to accelerate the convergence of the perturbative fixed-order expansion of the QCD correction δ(0) in terms of the strong coupling αs.
Gauhar Abbas, Vartika Singh
doaj   +1 more source

Yield, Evapotranspiration, Production Functions, Crop Coefficients, Water Productivity and Soil‐Water Extraction of Three Watermelon Varieties

Irrigation and Drainage, EarlyView.
ABSTRACT While watermelon is an important commodity in the United States and worldwide, some of the fundamental watermelon productivity indices (crop evapotranspiration [ETc], transpiration [Tr], evaporation [E], ET‐yield production functions [ETYPF], basal crop coefficients [Kcb], crop water productivity [CWP], soil‐water extraction [SWE]) have not ...
Suat Irmak
wiley   +1 more source

Artificial Neural Networks for Defining the Operational Parameters of Sand Filters for Irrigation

Irrigation and Drainage, EarlyView.
ABSTRACT The difficulty in defining the working configuration during the operation of sand filters arises from the complexity of the relationships among the variables in the filtration and backwashing processes. The objective was to use artificial neural networks to model the pressure loss and removal efficiency of filtration in a commercial sand ...
Mádilo Lages Vieira Passos, Fábio Ponciano de Deus, Evelise Roman Corbalan Góis Freire, Adriano Valentim Diotto, Michael Silveira Thebaldi   +4 more
wiley   +1 more source

Towards Water, Food and Energy Security: The Global Challenges and Possible Solutions for a Holistic Vision of Sustainability

Irrigation and Drainage, EarlyView.
ABSTRACT This invited paper gives an overview of the challenges the world is facing and offers a possible solution for water and food security within the holistic integrated concept of the water–energy–food (WEF) nexus. The paper summarizes the experience the author gained through working on various research projects at national and international ...
Ragab Ragab
wiley   +1 more source

Beyond the Metrics: Context‐Aware Calibration for Better Drain Flow Modelling

Irrigation and Drainage, EarlyView.
ABSTRACT Robust hydrological and water quality modelling is essential for advancing the understanding and management of engineered agricultural subsurface drainage systems. Achieving credible model output hinges on calibration strategies that are both rigorous and context sensitive. At the field scale, accurately capturing the dynamics of nutrient load
R. Caleb Bruhn, Anamelechi Falasy, Richard A. C. Cooke, Rabin Bhattarai   +3 more
wiley   +1 more source

Farmer‐Led Strategies for Water Conservation in the Urmia Lake Basin, Iran

Irrigation and Drainage, EarlyView.
ABSTRACT This study examines the urgent issues of water scarcity and limited farmer livelihoods in the Urmia Lake basin. To address these challenges, we apply the Governance, Autonomy, Integration, and Needs orientation (GAIN) methodology. Our participatory approach revealed that farmers prioritised actionable measures for water management, yield ...
Sina Besharat, Kamran Zeinalzadeh, Behzad Hessari, Ahmad Alijanpour, Azizeh Alizadeh Berdouki, Farideh Feghhenabi, Esmaeil Rezaei‐Chiyaneh, Hamid Hassanpour, Morteza Molaei, Mohammad Hossein Behroozi, Masoumeh Shadan, Mohamad Kouhani, Bizhan Golzari, Neda Khanmohammadi, Shanay Farazkhah, Ramin Hamidi Khasraqi, Hamed Abasalinezhad, Mahsa Mirdashtvan, Hamed Sabzchi‐Dehkharghani, Aziz Elbehri, Moritz von Cossel   +20 more
wiley   +1 more source

A Comparative Study on the Irrigation Suitability of Kerala's Rivers Using Fuzzy AHP and Conventional Methods

Irrigation and Drainage, EarlyView.
ABSTRACT Food security in Kerala depends on effective irrigation, but poor‐quality irrigation water poses threats such as salinity, sodicity and reduced soil productivity. Although past assessments have been localised, this study presents the first comprehensive, statewide evaluation of irrigation water suitability across 44 major rivers in Kerala.
Raji Karuna, S. K. Pramada, Venkataramana Sridhar   +2 more
wiley   +1 more source

Does the Application Flow Rate of Nutrient Solutions Prepared in Brackish Water Affect Coriander Production?

Irrigation and Drainage, EarlyView.
ABSTRACT Flow rates for applying nutrient solutions in hydroponic systems are empirically known, yet uncertainties remain regarding whether brackish water affects the optimal flow rate and, consequently, biomass production and allocation. This study evaluated whether variations in application flow rate affect coriander biomass when brackish water is ...
Raphaela Revorêdo Bezerra, Uriel Calisto Moura Pessoa, Ênio Farias de França e Silva, Tarcísio Ferreira de Oliveira, Thieres George Freire da Silva, Nildo da Silva Dias, José Fernandes Ferreira Junior, José Amilton Santos Júnior   +7 more
wiley   +1 more source

Collinearly-improved BK evolution meets the HERA data

Physics Letters B, 2015
In a previous publication, we have established a collinearly-improved version of the Balitsky–Kovchegov (BK) equation, which resums to all orders the radiative corrections enhanced by large double transverse logarithms.
E. Iancu, J.D. Madrigal, A.H. Mueller, G. Soyez, D.N. Triantafyllopoulos   +4 more
doaj   +1 more source

Temperature Renormalization Group and Resummation

, 1992
The temperature renormalization group equation (TRGE) is compared with a diagrammatic expansion for the $(\phi^4)_4$-theory. It is found that the one-loop TRGE resums the leading powers of temperature for the effective mass.
Elmfors, Per
core   +1 more source