Results 31 to 40 of about 5,732,959 (308)

Recognition of origin of crude oil from well Yubei 1 in Tarim Basin and its significance

Shiyou shiyan dizhi, 2021
The oil source of the Lower Paleozoic petroliferous system in the Tarim Basin is still controversial. Based on the detailed analysis of the molecular isotopic geochemistry of the crude oil from well Yubei 1 in the Yubei area of the Tarim Basin, the oil ...
Yongge SUN, Qinghua LU, Yuxin HE, Lishu KONG, Shaojie LIU, Yi GU   +5 more
doaj   +1 more source

GEOCHEMICAL CHARACTERISTICS OF SNOW COVER IN TOBOLSK

Известия Томского политехнического университета: Инжиниринг георесурсов, 2021
The relevance of this study is associated with the increasing technogenic pollution of highly industrialized urban areas. The aim of the research is to determine chemical element contents in solid precipitation and identify sources of pollutants. Materials: background ecosystems and technogenic urboecosytems in different functional zones of the city of
Dmitriy V. Moskovchenko, Roman Yu. Pozhitkov, Andrey V. Soromotin   +2 more
openaire   +2 more sources

Autonomous X‐Ray Fluorescence Mapping for Nanoscale Chemical Speciation of Fine Particulate Matter

Advanced Intelligent Discovery, EarlyView.
We present X‐AutoMap, an autonomous X‐ray fluorescence mapping framework that integrates real‐time analysis with rule‐based computer vision to selectively target chemically relevant regions. By avoiding background‐dominated areas, the method reduces acquisition time by fourfold while enabling accurate particle‐level speciation.
Carlos Deleon, Dmitri Gavrilov, Peggy O’Day, Ajith Pattammattel   +3 more
wiley   +1 more source

Genesis of calcite vein in basalt and its effect on reservoir quality: A case study of the Carboniferous in the east slope of Mahu sag, Junggar Basin, NW China

Petroleum Exploration and Development, 2021
The characteristics and genesis of the calcite veins in Carboniferous basalt in the east slope of Mahu Sag, Junggar Basin are investigated based on observation of cores and thin sections; analyses of X-ray fluorescence, in situ major, trace and rare ...
Lu XIA, Yingchang CAO, Baoli BIAN, Hailei LIU, Xiaoxue WANG, Yiwei ZHAO, Miaomiao YAN   +6 more
doaj   +1 more source

Thermochemical and geochemical characteristics of sulphur coals

Fuel Processing Technology, 2002
Abstract Gas chromatography–mass spectrometry (GC-MS) method was applied for investigation of the extracts obtained from three pairs of Donets bituminous coals (76–79% of C daf ) of similar rank but differing in sulphur content. The elemental characteristic of the coals and hydrocarbon composition of their extracts reflect the differences in the ...
Achim Bechtel, Ludmila Butuzova, Oksana Turchanina, Reinhard Gratzer   +3 more
openaire   +1 more source

Particle size and geochemical characteristics of soils at the study sites.

, 2018
Particle size and geochemical characteristics of soils at the study sites.
Valentina Vincenzi (5797571), Stefano Furin (5797574), Luca Minarelli (5797580), Stefano Macolino (5797583), Massimiliano Fazzini (5797577), Cristina Pornaro (5797568)   +5 more
core   +1 more source

Appendix B4. Geochemical characteristics of granitoids from western Uzbek Tien Shan and results of isotopic and geochronological studies

, 2020
Appendix B4. Geochemical characteristics of granitoids from western Uzbek Tien Shan and results of isotopic and geochronological ...
Konopelko, Dmitry L., Dmitry L. Konopelko   +1 more
core   +1 more source

Soil organic matter and geochemical characteristics shape microbial community composition and structure across different land uses in an Australian wet tropical catchment

, 2021
Soil characteristics vary across land uses, and soil microbial communities are likely to respond to such variations. However, such responses are not well understood.
Rashti, Mehran Rezaei, Mohammad Bahadori, Chengrong Chen, Jun‐Tao Wang, Lewis, Stephen, Rezaei Rashti, Mehran, Shen, Ju‐pei, Wang, Jun-Tao, Ju‐pei Shen, Stephen Lewis, Shen, Ju-pei, Chen, Chengrong, Wang, Jun‐Tao, Mehran Rezaei Rashti, Bahadori, Mohammad, Bahadori, M., Lewis, S., Rezaei Rashti, M., Shen, J. -P., Wang, Juntao (R19102), Chen, C.   +20 more
core   +1 more source

Synergistic Effect on Enhanced Oil Recovery in High Salinity Carbonate Reservoirs Using a Novel PEI‐Functionalized Carbon Nanotube Nanocomposite

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Enhancing oil recovery (EOR) in mature reservoirs is hindered by high interfacial tension (IFT) and oil‐wet rock formations, especially under harsh, high‐salinity conditions. This study aims to overcome these limitations by synthesizing a novel carbon nanotube nanocomposite covalently grafted with polyethylenimine and non‐covalently ...
Mohamed Abu Shuheil, Dilipkumar S. Patel, N. Beemkumar, Tariq Abdulkader Alrihaim, Dhirendra Nath Thatoi, Ripendeep Singh, Rohit Kumar, Parminder Singh, Ahmad Khalid   +8 more
wiley   +1 more source

(Table 3) Geochemical characteristics of samples of DSDP Leg 64 Holes igneous rocks

, 1982
(Table 3) Geochemical characteristics of samples of DSDP Leg 64 Holes igneous ...
Verma, Surendra P, Surendra P Verma (6964325), S.P. Verma   +2 more
core   +1 more source