Results 41 to 50 of about 463,460 (194)

Estimating the monthly pan evaporation with limited climatic data in dryland based on the extended long short-term memory model enhanced with meta-heuristic algorithms

Scientific Reports, 2023
Accurate estimation of evaporation is of great significance for understanding regional drought, and managing and applying limited water resources in dryland.
Tonglin Fu, Xinrong Li
doaj   +1 more source

Importance of pan evaporation for irrigation scheduling and proper use of crop-pan coefficient (Kcp), crop coefficient (Kc) and pan coefficient (Kp)

AFRICAN JOURNAL OF AGRICULTURAL RESEEARCH, 2011
The objectives of this study were: (1) to submit comprehensive information about the distinctions among pan coefficient (Kp), crop coefficient (Kc), and crop-pan coefficient (Kcp); (2) to reveal the importance of using pan evaporation for irrigation scheduling.
openaire   +2 more sources

Spin Alignment of Heavy Meson Revisited

, 2001
Using heavy quark effective theory a factorized form for inclusive production rate of a heavy meson can be obtained, in which the nonperturbative effect related to the heavy meson can be characterized by matrix elements defined in the heavy quark ...
Abreu P., Brandenburg G., J. P. MA, Ma J. P.   +3 more
core   +1 more source

A Decision Support System for Irrigation Scheduling Using a Reduced-Size Pan

Agronomy
An automatic, weight-based, small 20 cm diameter pan was used for real-time calculations of evaporation and precipitation in a semiarid environment.
Georgios Nikolaou, Damianos Neocleous, Efstathios Evangelides, Evangelini Kitta   +3 more
doaj   +1 more source

Decoupling peroxyacetyl nitrate from ozone in Chinese outflows observed at Gosan Climate Observatory [PDF]

Atmospheric Chemistry and Physics, 2017
We measured peroxyacetyl nitrate (PAN) and other reactive species such as O3, NO2, CO, and SO2 with aerosols including mass, organic carbon (OC), and elemental carbon (EC) in PM2. 5 and K+ in PM1.
J. Han, J. Han, M. Lee, X. Shang, G. Lee, L. K. Emmons   +5 more
doaj   +1 more source

From Baking a Cake to Solving the Schrodinger Equation

, 2005
The primary emphasis of this study has been to explain how modifying a cake recipe by changing either the dimensions of the cake or the amount of cake batter alters the baking time.
Brown Alton, Edward A. Olszewski, McGee Harold, Wolke Robert L.   +3 more
core   +1 more source

New estimates of pan-Arctic sea ice–atmosphere neutral drag coefficients from ICESat-2 elevation data

The Cryosphere, 2022
Abstract. The effect that sea ice topography has on the momentum transfer between ice and atmosphere is not fully quantified due to the vast extent of the Arctic and limitations of current measurement techniques. Here we present a method to estimate pan-Arctic momentum transfer via a parameterization that links sea ice–atmosphere form drag coefficients
A. Mchedlishvili, C. Lüpkes, A. Petty, A. Petty, M. Tsamados, G. Spreen   +5 more
openaire   +6 more sources

Estimation of Actual Evapotranspiration and Crop Coefficient of Transplanted Puddled Rice Using a Modified Non-Weighing Paddy Lysimeter

Agronomy, 2022
Lysimetric and eddy covariance techniques are commonly used to directly estimate actual crop evapotranspiration (ETa). However, these technologies are costly, laborious, and require skills which make in situ ET estimation difficult, particularly in ...
Arti Kumari, Ashutosh Upadhyaya, Pawan Jeet, Nadhir Al-Ansari, Jitendra Rajput, Prem K. Sundaram, Kirti Saurabh, Ved Prakash, Anil K. Singh, Rohan K. Raman, Venkatesh Gaddikeri, Alban Kuriqi   +11 more
doaj   +1 more source

Evaluation of the Linear Relationship Between Pulse Arrival Time and Blood Pressure in ICU Patients: Potential and Limitations [PDF]

, 2018
A variety of techniques based on the indirect measurement of blood pressure (BP) by Pulse Transit Time (PTT) have been explored over the past few years.
Braiam Escobar-Restrepo, Braiam Escobar-Restrepo, Panayiotis A. Kyriacou, Robinson Torres-Villa   +3 more
core   +2 more sources

OH+ in Diffuse Molecular Clouds [PDF]

, 2013
Near ultraviolet observations of OH+ and OH in diffuse molecular clouds reveal a preference for different environments. The dominant absorption feature in OH+ arises from a main component seen in CH+ (that with the highest CH+/CH column density ratio ...
Federman, S. R., Porras, A. J., Ritchey, A. M., Welty, D. E.   +3 more
core   +3 more sources