Results 21 to 30 of about 30,224 (313)

Use of ammonium sulphate as a sulphur fertilizer: Implications for ammonia volatilization [PDF]

open access: yes, 2021
Ammonium sulphate is widely used as a sulphur (S) fertilizer, constituting about 50% of global S use. Within nitrogen (N) management it is well known that ammonium-based fertilizers are subject to ammonia (NH3) volatilization in soils with pH >7, but ...
Dawson, Chris J.   +5 more
core   +1 more source

Volatility Forecasting for Low-Volatility Investing

open access: yesSSRN Electronic Journal, 2022
Low-volatility investing often involves sorting and selecting stocks based on retrospective risk measures, for example, the historical standard deviation of returns. In this paper, we use the volatility forecasts from a wide spectrum of volatility models to sort and select stocks and estimate portfolio weights.
Christian Conrad   +2 more
openaire   +2 more sources

Data From: Ammonia volatilization from composting with oxidized biochar [PDF]

open access: yes, 2020
Please cite as: Rachel Hestrin, Akio Enders, and Johannes Lehmann. (2020) Data From: Ammonia volatilization from composting with oxidized biochar. Cornell University eCommons Repository.
Hestrin, Rachel   +2 more
core   +1 more source

Study on the Causes for ICP-MS Signal Intensity Declination of Os Water Absorption Liquid

open access: yesYankuang ceshi, 2018
BACKGROUND Os can be separated from the sample matrix by distillation, and the absorbing liquid can be introduced into ICP-MS directly, which is a key step of the molybdenite Re-Os isotopic age analysis.
ZHOU Li-min   +5 more
doaj   +1 more source

Antimony release and volatilization from rice paddy soils: Field and microcosm study. [PDF]

open access: yes, 2022
The fate of antimony (Sb) in submerged soils and the impact of common agricultural practices (e.g., manuring) on Sb release and volatilization is understudied.
Caplette, Jaime N   +7 more
core   +1 more source

Adsorptive removal of adsorbable organic halogens by activated carbon [PDF]

open access: yesRoyal Society Open Science, 2018
Current research mainly focuses on the reduction of adsorbable organic halogen (AOX) sources, while studies on AOX monitoring and management in the environment are scarce. Organic pollutants in water are mainly fixed by sediments.
Chengrong Qin   +5 more
doaj   +1 more source

Efficient Arsenic Methylation and Volatilization Mediated by a Novel Bacterium from an Arsenic-Contaminated Paddy Soil [PDF]

open access: yes, 2016
Microbial arsenic (As) methylation and volatilization are important processes controlling the As biogeochemical cycle in paddy soils. To further understand these processes, we isolated a novel bacterial strain, SM-1, from an As-contaminated paddy soil ...
Jun Zhang (48506)   +13 more
core   +1 more source

Spatial variation of ammonia volatilization from soil and its scale-dependent correlation with soil properties [PDF]

open access: yes, 2008
Quantitative predictions of ammonia volatilization from soil are useful to environmental managers and policy makers and empirical models have been used with some success.
Corstanje, R.   +4 more
core   +1 more source

A VOLATILITY-OF-VOLATILITY EXPANSION OF THE OPTION PRICES IN THE SABR STOCHASTIC VOLATILITY MODEL [PDF]

open access: yesInternational Journal of Theoretical and Applied Finance, 2014
We propose a new type of asymptotic expansion for the transition probability density function (or heat kernel) of certain parabolic partial differential equations (PDEs) that appear in option pricing. As other, related methods developed by Costanzino, Hagan, Gatheral, Lesniewski, Pascucci, and their collaborators, among others, our method is based on ...
Nistor, Victor   +2 more
openaire   +4 more sources

Response of ammonia volatilization to biochar addition: A meta-analysis [PDF]

open access: yes, 2019
There has been increasing interest in and use of biochar as a soil amendment. However, the effects of biochar addition on ammonia volatilization (AV) appeared contradictory from the many reported studies and the main influencing factors remain unclear ...
Li, Q.   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy