Results 51 to 60 of about 170,094 (295)

The effect of hydrate content on seismic attenuation: A case study for Mallik 2L-38 well data, Mackenzie delta, Canada

, 2004
Observations of velocities in sediments containing gashydrates show that the strength of sediments increases with hydrate saturation. Hence it is expected that the attenuation of these sediments will decrease with increasing hydrate saturation.
Minshull, T.A., Chand, S.
core   +1 more source

Thermo-pressure coupling model for gas hydrate depressurization exploitation in South China Sea

Energy Exploration & Exploitation
The sediment type in the “Shenhu” sea area of the South China Sea is mud sediment, with poor reservoir physical conditions, and the seabed is loose with a small pressure window.
Li Bin, Lu Jingan, Shen Kaixiang, Yu Yanjiang, Li Bo   +4 more
doaj   +1 more source

Acute Kidney Injury After Mechanical Thrombectomy for Stroke in Patients With Pre‐Existing Renal Impairment

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Acute kidney injury (AKI) is a common but often underrecognized complication in ischemic stroke patients undergoing mechanical thrombectomy, particularly among those with pre‐existing renal impairment. This study evaluated the incidence, risk factors, and clinical impact of AKI in this high‐risk population.
Michał Borończyk, Marcel Pilarek, Emilia Jaworska, Natalia Kardas, Oliwia Barnaś, Julia Woźniak, Iga Machała, Julia Węgrzynek‐Gallina, Joanna Siuda, Anna Hawrot‐Kawecka, Anetta Lasek‐Bal   +10 more
wiley   +1 more source

Methane release from warming-induced hydrate dissociation in the West Svalbard continental margin: timing, rates, and geological controls

, 2013
Hundreds of plumes of methane bubbles, first observed in 2008, emanate from an area of the seabed off West Svalbard that has become 1°C warmer over the past 30 years. The distribution of the plumes, lying close to and upslope from the present upper limit
Thatcher, K.E., Westbrook, G.K., Sarkar, S., Minshull, T.A.   +3 more
core   +1 more source

Clathrate formation and dissociation in vapor/water/ice/hydrate systems in SBA-15, sol-gel and CPG porous media, as probed by NMR relaxation, novel protocol NMR cryoporometry, neutron scattering and ab initio quantum-mechanical molecular dynamics simulation [PDF]

, 2007
The Gibbs-Thomson effect modifies the pressure and temperature at which clathrates occur, hence altering the depth at which they occur in the seabed. Nuclear magnetic resonance (NMR) measurements as a function of temperature are being conducted for water/
Webber, J. Beau W., Anderson, Ross, Anderson, Ross A., Tohidi, Bahman, Strange, John H., Tohidi, Bahman; id_orcid, Webber, J. B. W.   +6 more
core   +1 more source

Marine microbial biofilms on diverse abiotic surfaces

Frontiers in Marine Science
Marine biofilms are globally ubiquitous surface-associated microbial communities that have gained increasing attention due to their distinctive structure and functions.
Shan Yu, Shan Yu, Xindi Lu, Xindi Lu, Hailong Lu, Hailong Lu   +5 more
doaj   +1 more source

Decomposition Characterizations of Methane Hydrate Confined inside Nanoscale Pores of Silica Gel below 273.15 K

Crystals, 2019
The formation and decomposition of gas hydrates in nanoscale sediments can simulate the accumulation and mining process of hydrates. This paper investigates the Raman spectra of water confined inside the nanoscale pores of silica gel, the decomposition ...
Lihua Wan, Xuebing Zhou, Peili Chen, Xiaoya Zang, Deqing Liang, Jinan Guan   +5 more
doaj   +1 more source

Development Strategy of China’s Offshore Oil and Gas Equipment

中国工程科学, 2023
Offshore oil and gas equipment is crucial for developing offshore oil and gas and strengthening the marine power of a country. In recent years, China’s offshore oil and gas equipment industry has made a series of breakthroughs and is realizing the leap ...
Cheng Bing , Fu Qiang , Li Qingping , Liu Yibin , Zhu Lin , Wu Ying   +5 more
doaj   +1 more source

Changes in Immune‐Inflammation Status and Prognosis in Pregnancy‐Related Cerebral Venous Thrombosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Distinguishing pathological changes from physiological adaptations in pregnancy‐related cerebral venous thrombosis (CVT) is clinically challenging. This study aimed to characterize coagulation, immune‐inflammation, and dehydration status in these patients and assess their prognostic value.
Xiaoming Zhang, Zilin Xu, Ran Duan, Chunxiao Lu, Da Zhou, Chen Zhou, Ran Meng, Xunming Ji   +7 more
wiley   +1 more source

Experimental Investigation of the Hydrate-Based Gas Separation of Synthetic Flue Gas with 5A Zeolite

Energies, 2020
Coal combustion flue gas contains CO2, a greenhouse gas and driver of climate change. Therefore, CO2 separation and removal is necessary. Fortunately, 5A zeolites are highly porous and can be used as a CO2 adsorbent.
Xiaoya Zang, Na Zhang, Xuebing Zhou, Lihua Wan, Deqing Liang   +4 more
doaj   +1 more source