Results 21 to 30 of about 22,148 (267)

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

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

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

Nutrient loss in composting of agroindustrial residues [PDF]

open access: yesEngenharia Agrícola, 2013
The management of composting may influence the characteristics of the produced compounds. The experiment used three frequencies of plowing, combined with the conditions: with and without coverage of the composting patio, with and without the use of ...
Leocir J. Carneiro   +4 more
doaj   +1 more source

Rejected Sago Starch as a Coating Material to Mitigate Urea-Nitrogen Emission

open access: yesAgronomy, 2022
Urea–nitrogen is commonly lost through ammonia (NH3) volatilization, denitrification, and nitrate (NO3−) leaching. Rejected sago starch (RSS), which is a by-product of sago flour extraction, could be used to minimize NH3 volatilization from urea.
Rajan Kavitha   +4 more
doaj   +1 more source

Investigating Mercury Interactions of Rhodotorula Toruloides IR-1395 for Mercury Bioremediation Processes in Aquatic Environments [PDF]

open access: yesBiological Journal of Microorganism, 2021
Introduction: Nowadays, heavy metals pollution is one of the most important environmental problems. Due to the high cost of common refining methods, the use of microbial biomass is recommended to clean up heavy metals.
Niosha Tavassoli Tabatabaeei   +4 more
doaj   +1 more source

Zinc and lead recovery from jarosite residues produced in zinc hydrometallurgy by vacuum reduction and distillation

open access: yesGreen Processing and Synthesis, 2018
Jarosite residues in zinc hydrometallurgy are considered as hazardous waste as they contain heavy metals such as Zn and Pb. A novel vacuum reduction and distillation process has been put forward to recover Zn and Pb from jarosite residues.
Li Jin, Ma Hongzhou
doaj   +1 more source

Experimental and theoretical studies on volatilization process of heat-enhanced organic pollutants from soils

open access: yesYantu gongcheng xuebao, 2019
In order to study the laws of volatilization removal of organic pollutants from soils and the influencing factors of volatilization process under heat-enhanced conditions, the indoor volatilization model experiments are designed.
LU Liang-liang , LIU Zhi-bin , WEI Qi-bing , MAO Bai-yang
doaj   +1 more source

Paul Virilio: Clinical Theory

open access: yesMedia Theory, 2019
We characterize Paul Virilio as a «clinical» thinker who diagnoses systemic problems of modernity in accidents and unusual incidents. Virilio’s method of clinical theoretical diagnosis is illustrated through an examination of common elements in his ...
Jim Morrow, Rob Shields
doaj   +1 more source

Inoculation with chlamydospores of Trichoderma asperellum SM-12F1 accelerated arsenic volatilization and influenced arsenic availability in soils

open access: yesJournal of Integrative Agriculture, 2015
Fungi capable of arsenic (As) accumulation and volatilization are hoped to tackle As-contaminated environment in the future. However, little data is available regarding their performances in field soils.
Xiu-rong WANG   +7 more
doaj   +1 more source

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