Results 81 to 90 of about 157,403 (306)

Arsenic release dynamics in Punjab's agricultural soils: the role of background species using fractional factorial design

open access: yesDiscover Soil
Arsenic contamination has become an important environmental issue in India, particularly in Punjab, where intensive agriculture and groundwater dependence have exacerbated the problem.
Hafsa Nazir   +3 more
doaj   +1 more source

Interference Adsorption of Cadmium witha Variety of Pollutants in Sediments Basedon Fractional Factorial Design(Resolution V)

open access: yes, 2017
The characteristics of composite cadmium contamination via adsorption onto the surficial sediments in a pesticide (dimethoate, metalaxyl, atrazine, malathion, and prometryn)/heavy metal (copper, zinc, lead, cadmium, and nickel) composite contamination ...
Wenwen Gu, Bingchuan Cheng, Y. Li
semanticscholar   +1 more source

Flexible methods for species distribution modeling with small samples

open access: yesEcography, EarlyView.
Species distribution models (SDMs) predict where species live or could potentially live and are a key resource for ecological research and conservation decision‐making. However, current SDM methods often perform poorly for rare or inadequately sampled species, which include most species on earth, as well as most of those of the greatest conservation ...
Brian S. Maitner   +4 more
wiley   +1 more source

Sustainable Optimization of Emissions and Performance in Hydrogen Port Injection Diesel Engines Through Port Timing and Injection Duration Modulation

open access: yesEnergy Science &Engineering, EarlyView.
Optimizing hydrogen port injection in diesel engines significantly improves efficiency and reduces emissions, demonstrating a sustainable dual‐fuel strategy for cleaner transportation solutions and lower environmental impact. ABSTRACT This study evaluates a single‐cylinder hydrogen port injection (HPFI) Diesel engine by systematically varying the ...
Kaustubh R. Kapadani   +7 more
wiley   +1 more source

Use of experimental design in the optimisation of a solid phase preconcentration system for Cobalt determination by GFAAS

open access: yesEclética Química, 2018
In this work is proposed a solid phase preconcentration system of Co 2+ ions and its posterior determination by GFAAS in which fractional factorial design and response surface methodology (RSM) were used for optimization of the variables associated with ...
Geraldo D. Matos   +3 more
doaj   +1 more source

A Comparison of Realized Measures of Integrated Volatility: Price Duration‐ vs. Return‐Based Approaches

open access: yesJournal of Forecasting, EarlyView.
ABSTRACT We study the accuracy of a variety of parametric price duration‐based realized variance estimators constructed via various financial duration models and compare their forecasting performance with the performance of various nonparametric return‐based realized variance estimators.
Björn Schulte‐Tillmann   +2 more
wiley   +1 more source

Consumers' valuation for cultured meat: A multi‐city choice experiment in China

open access: yesJournal of the Agricultural and Applied Economics Association, EarlyView.
Abstract Despite the rising interest in cultured meat, there remains scant information on whether consumers would value it. This study evaluated consumers' willingness‐to‐pay (WTP) for cultured chicken and examined how information affects WTP. Using a choice experiment with a total of 571 samples, the results found that consumers are unwilling to pay a
Rao Yuan   +3 more
wiley   +1 more source

(M, S)-OPTIMALITY CRITERION FOR REGULAR FRACTIONAL FACTORIAL DESIGNS

open access: yesPakistan Journal of Agriculture, Agricultural Engineering & Veterinary Sciences, 2014
The performance of (M, S)-optimality criterion on Regular two-level fractional factorial designs (FFD’s) is studied. The criterion has good estimation capacity and easy to compute.
M. H. Lakho   +3 more
doaj  

Application of the fractional factorial design in multiple W/O/W emulsions

open access: yes, 2017
In presented research, multiple W/O/W emulsions were developed by using experimental design method. A 24-1 fractional factorial design was performed by varying the following input parameters: primary polymeric emulsifier (PEG 30-dipolyhydroxystearate ...
D. Vasiljević   +3 more
semanticscholar   +1 more source

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