Results 41 to 50 of about 346,901 (203)

A prolific catalyst for dehydrogenation of neat formic acid

Nature Communications, 2016
Formic acid is a promising energy carrier for on-demand hydrogen generation. Here, the authors present a robust, reusable iridium catalyst that enables hydrogen release from neat formic acid under mild conditions and in the presence of air.
Jeff Joseph A. Celaje, Zhiyao Lu, Elyse A. Kedzie, Nicholas J. Terrile, Jonathan N. Lo, Travis J. Williams   +5 more
doaj   +1 more source

Modes of occurrence and influencing factors of lithium in Li-rich coal from the Jungar coalfield, China, insights of LA-ICP-MS

International Journal of Coal Science & Technology
Due to the limitations of widely used energy spectrum and spectral analyses for the determination of trace elements in coal, the modes of occurrence of Li still remains unclear.
Huidi Hao, Bo Jiu, Wenhui Huang, Mingzhe Sun   +3 more
doaj   +1 more source

Exploring hydrocarbon-bearing shale formations with multi-component seismic technology and evaluating direct shear modes produced by vertical-force sources [PDF]

, 2013
textIt is essential to understand natural fracture systems embedded in shale-gas reservoirs and the stress fields that influence how induced fractures form in targeted shale units.
Alkan, Engin, 1979-
core  

Innovative Approach Integrating Machine Learning Models for Coiled Tubing Fatigue Modeling

Applied Sciences
Coiled tubing (CT) plays a pivotal role in oil and gas well intervention operations due to its advantages, such as flexibility, fast mobilization, safety, low cost, and its wide range of applications, including well intervention, cleaning, stimulation ...
Khalil Moulay Brahim, Ahmed Hadjadj, Aissa Abidi Saad, Elfakeur Abidi Saad, Hichem Horra   +4 more
doaj   +1 more source

Application ofOrganic Modification strategy in Hydrocarbon Selective Oxidation

, 2009
Application of Organic Modification strategy in Hydrocarbon Selective ...
陈晨, 徐杰
core  

(Table 3) Hydrocarbon composition in bottom sediments from the Black Sea

, 1993
(Table 3) Hydrocarbon composition in bottom sediments from the Black ...
Chernova, Tatyana G, Tatyana G Chernova (7922051)   +1 more
core   +1 more source

Psychrophiles-Cold-adapted hydrocarbon-degrading microorganisms.

, 2010
Throughout the year a high percentage of the biosphere, about 85%, is permanently exposed to temperatures below 5 C. Despite the inhospitable nature of low-temperature environments they are successfully colonized by cold-adapted microorganisms (both ...
Lo Giudice A, Michaud L, Bruni V, De Domenico M   +3 more
core   +1 more source

Decarboxylative stereoretentive C–N coupling by harnessing aminating reagent

Nature Communications
In recent decades, strategies involving transition-metal catalyzed carbon-carbon or carbon-heteroatom bond coupling have emerged as potent synthetic tools for constructing intricate molecular architectures.
Jeonguk Kweon, Bumsu Park, Dongwook Kim, Sukbok Chang   +3 more
doaj   +1 more source

Isolation and characterization of n-alkane utilizing bacteria, which produce biomulsifiers [PDF]

, 2003
Includes bibliographical references.Bacterial strains were isolated by enrichment cultures from oil-contaminated soil samples. In the present study, several strains, capable of growing on crude oil, were isolated.
Ghilamicael, Amanuel Menghs
core   +1 more source

Some Vegetable Oil‐Based Additives for Petroleum Industry: A Review of Sunflower, Rapeseed and Used Cooking Oil‐Derived Surfactants

Engineering Reports
The increasing environmental concerns associated with conventional petroleum‐based additives—such as high toxicity, poor biodegradability, and long‐term ecological persistence—have driven the development of more sustainable alternatives.
Roland Nagy, Gábor Zoltán Nagy, Ditta Adrienn Gerbovits   +2 more
doaj   +1 more source