Optimization of struvite precipitation in synthetic biologically treated swine wastewater - Determination of the optimal process parameters [PDF]
, 2013 A sustainable way to recover phosphorus (P) in swine wastewater involves a preliminary step of P dissolution followed by the separation of particulate organic matter.
Biscans, Béatrice +4 more
core +2 more sources
The ATM implied volatility slope, the (dual) volatility swap, and the (dual) zero vanna implied volatility [PDF]
arXiv, 2022 Exact relationships between the short time-to-maturity ATM implied volatility slope, the (dual) volatility swap, and the (dual) zero vanna implied volatility are given.
arxiv
The memory of volatility [PDF]
Quantitative Finance and Economics, 2018 The focus of the volatility literature on forecasting and the predominance of the conceptually simpler HAR model over long memory stochastic volatility models has led to the fact that the actual degree of memory estimates has rarely been considered. Estimates in the literature range roughly between 0.4 and 0.6 - that is from the higher stationary to ...
Wenger, Kai +2 more
openaire +3 more sources
Local volatility under rough volatility
Mathematical Finance, 2023 AbstractSeveral asymptotic results for the implied volatility generated by a rough volatility model have been obtained in recent years (notably in the small‐maturity regime), providing a better understanding of the shapes of the volatility surface induced by rough volatility models, supporting their calibration power to SP500 option data.
Florian Bourgey +3 more
openaire +4 more sources
Local volatility under rough volatility [PDF]
arXiv, 2022 Several asymptotic results for the implied volatility generated by a rough volatility model have been obtained in recent years (notably in the small-maturity regime), providing a better understanding of the shapes of the volatility surface induced by rough volatility models, and supporting their calibration power to S&P500 option data. Rough volatility
arxiv
Fate of allelochemicals in the soil Destino de aleloquímicos no solo
Ciência Rural, 1997 Allelochemicals are compounds released by one plant or plant residues that may have a negative or positive effect on other plant. The importance of allelopathy was extensively explored during the past three decades, with the work concentrating in the ...
Ribas Antonio Vidal, Thomas Trost Bauman
doaj +1 more source
Characteristics of Ammonia Emissions from the use of Compost manure and Composite Fertilizer in Upland Field [PDF]
대한환경공학회지, 2023 Objectives This study aimed to monitor ammonia volatilization in upland fields under different nitrogen fertilizer applications, comparing compost manure (CM) and composite fertilizer (CF) and investigate the environmental factors influencing ammonia ...
Yeon-Jin Lee +3 more
doaj +1 more source
Maize initial development as affected by nitrogen sources and rates at sowing time [PDF]
Biotemas, 2009 The growth of notillage has stimulated an increase in nitrogen applied at maize sowing time. This work was carried out aiming to evaluate the effects of nitrogen fertilizer sources and rates on maize germination.
Paula Bianchet +2 more
doaj
Release of volatile organic compounds from natural rubber at different temperatures
Hecheng xiangjiao gongye, 2022 The effects of different temperatures （80 ℃ and 130 ℃） and different vulcanization temperatures （130 ℃， 140 ℃， and 150 ℃） on volatile organic compounds （VOCs） of two natural rubbers （SVR 3 L and SPR 10#） were investigated by static headspace coupled with
CHEN Xin1 a， ZHANG Bo-yu1 b， WANG Dan-ling2， DU Zhen-xia1 b， WU You-ping1 a
doaj +1 more source
N, P and K budgets for crop rotations on nine organic farms in the UK [PDF]
, 2003 On organic farms, where the importation of materials to build/maintain soil fertility is restricted, it is important that a balance between inputs and outputs of nutrients is achieved to ensure both short-term productivity and long-term sustainability ...
Berry, P.M. +7 more
core +1 more source