Results 81 to 90 of about 5,675,120 (331)

The time-inconsistency of alternative energy policy [PDF]

open access: yes
Time-inconsistency can arise when a government attempts to convince private sector to use a particular alternative energy (gas, green electricity...) rather than petroleum products.
Agnes dArtigues   +2 more
core  

KINERJA OIL SPILL DISPERSANT DALAM PROSES BIOREMEDIASI TANAH TERCEMAR MINYAK BUMI (STUDI KASUS TANAH TERCEMAR MINYAK BUMI LAPANGAN XYZ)

open access: yesJurnal Teknologi Industri Pertanian, 2018
Oil spill dispersant (OSD) is a surfactant product that serves as dispersant. OSD has been widely used and proven to be effective in oil spills both in the sea and in the land. The OSD-SBRC (Surfactant and Bioenergy Research Center) IPB was produced from
Imam Chanif   +2 more
doaj   +1 more source

Kinetic Insights into Precursor‐Assisted Soft Sphere Close Packing Revealed by In Situ GISAXS with Implications for Gas Sensing

open access: yesAdvanced Functional Materials, EarlyView.
The versatile precursor‐assisted soft sphere close packing during slot‐die coating is investigated with in situ X‐ray scattering. The soft crystallization pathways towards a close packing involve multistep structural transitions such as surface nucleation, in‐plane, and out‐of‐plane crystallization.
Guangjiu Pan   +14 more
wiley   +1 more source

Methodical aspects of the assessment of the state of subsurface contamination with petroleum products caused by the military aggression of the Russian Federation against Ukraine

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія
Formulation of the problem. As a result of Russian military aggression, a significant number of petroleum product supply objects were destroyed in Ukraine, which led to the formation of new sources of subsurface contamination.
Руслан Гаврилюк   +3 more
doaj   +1 more source

Methods for assessing territory pollution by oil or petroleum product spills

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2020
During the development of oil and gas fields and transportation of hydrocarbons, the ecology of regions is subject to various negative impacts. The most severe consequences for the environment are caused by accidental spills of oil or petroleum products,
S. I. Chelombitko, V. V. Piven
doaj   +1 more source

Oil and Product Price Dynamics in International Petroleum Markets [PDF]

open access: yes
In this paper we investigate crude oil and products price dynamics. We present a comparison among ten price series of crude oils and fourteen price series of petroleum products, considering four distinct market areas (Mediterranean, North Western Europe,
Alessandro Lanza   +2 more
core  

Synthesis of α-hydroxy-β,β-difluoro-γ-ketoesters via [3,3]sigmatropic rearrangements [PDF]

open access: yes, 2000
Readily available γ,γ-difluorinated allylic alcohols obtained from trifluoroethanol were esterified efficiently. Exposure to strong base (LDA) afforded the ester enolates, in which chelation both controlled configuration and stabilised against ...
Broadhurst, Michael   +3 more
core   +1 more source

Flux‐Regulated Crystallization of Perovskites Using Machine Learning‐Predicted Solvent Evaporation Rates for X‐Ray Detectors

open access: yesAdvanced Functional Materials, EarlyView.
By integrating machine learning into flux‐regulated crystallization (FRC), accurate prediction of solvent evaporation rates in real time, improving crystallization control and reducing crystal growth variability by over threefold, is achieved. This enhances the reproducibility and quality of perovskite single crystals, leading to reproducible ...
Tatiane Pretto   +8 more
wiley   +1 more source

OXIDATION OF OIL TAR IN THE PRESENCE OF THE ADDITIVE-INITIATOR

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2016
The effect on the process of oxidation of the oil tar of initiating additive - ethyl benzene was studied. It is shown, that ethyl - benzene provides being oxidized petroleum product with additional active centers free radicals.
E. I. Grushova   +3 more
doaj   +1 more source

Highly-functionalised difluorinated cyclohexane polyols via the Diels–Alder reaction : regiochemical control via the phenylsulfonyl group [PDF]

open access: yes, 2005
A difluorinated dienophile underwent cycloaddition reactions with a range of furans to afford cycloadducts whichcould be processed regio- and stereoselectively via episulfonium ions, generated by the reaction between their alkenyl groups and ...
Crowley, Patrick J   +5 more
core   +1 more source

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