Results 51 to 60 of about 718,980 (307)

Impact of facies and diagenetic variability on permeability and fluid flow in an oolitic grainstone—Pleistocene Miami Oolite

The Depositional Record, 2020
The Miami Oolite of South Florida is representative of a grainstone‐rich carbonate unit that has been surficially karsted, and therefore may be considered as an analogue for subsurface reservoirs/aquifers with ‘high’ permeability extremes.
Paul (Mitch) Harris, Sam Purkis
doaj   +1 more source

Calcium carbonate-calcium phosphate mixed cement compositions for bone reconstruction [PDF]

, 2006
The feasibility of making calcium carbonate-calcium phosphate (CaCO3-CaP) mixed cements, comprising at least 40 % (w/w) CaCO3 in the dry powder ingredients, has been demonstrated.
Bareille, Reine, Combes, Christèle, Rey, Christian   +2 more
core   +1 more source

Application of new dating and temperature-measuring technologies in study of strike-slip fault-controlled reservoirs and hydrocarbon accumulation: A case study of Ordovician strata in non-foreland area of Tarim Basin, NW China

Petroleum Exploration and Development
Focusing on the geochronological issues related to the matching relationship between the strike-slip fault activity and the stages of hydrocarbon generation, reservoir formation, and hydrocarbon accumulation, this study aims to quantitatively constrain ...
Chao NI, Anping HU, Tianjie JIN, Junmao DUAN, Zhanfeng QIAO, Shaoying CHANG, Yahao HUANG, Anjiang SHEN, Hanlin CHEN   +8 more
doaj   +1 more source

Experimental simulation of dissolution law and porosity evolution of carbonate rock

Petroleum Exploration and Development, 2016
Experiments of acetic acid (initial 0.2%) with porous dolostone, fractured-porous-vuggy dolostone, porous limestone and fractured limestone were done in a continuous flow diagenesis simulation system to find out the controlling factor of dissolution and ...
Min SHE, Jianfeng SHOU, Anjiang SHEN, Liyin PAN, Anping HU, Yuanyuan HU   +5 more
doaj   +1 more source

Reservoir characteristics and genesis of the Ordovician M54−1a in the central and eastern parts of the Ordos Basin, China

Journal of Natural Gas Geoscience, 2020
M54−1a is a new natural gas exploration target of the Ordovician in the Ordos Basin and is expected to have large-scale reserves and a production increasing area after M51 and M52 weathering crust gas reservoir.
Zhou Yu, Jingao Zhou, Zhenchun Ding, Liubin Wei, Yuan Wei, Xingning Wu, Dongxu Wu, Shaoyi Wang, Weiling Li   +8 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Effect of carbonate chemistry alteration on the early embryonic development of the pacific pyster (Crassostrea gigas) [PDF]

, 2011
Ocean acidification, due to anthropogenic CO(2) absorption by the ocean, may have profound impacts on marine biota. Calcareous organisms are expected to be particularly sensitive due to the decreasing availability of carbonate ions driven by decreasing ...
Heip, Carlo H. R., Greaves, Mervyn, Jack J Middelburg, Gattuso, J.P., Greaves, M., Frédéric Gazeau, Jan Peene, Gazeau, F., Gazeau, Frédéric, Jack J. Middelburg, Middelburg, Jack J., Heip, Carlo, Middelburg Jack J., Middelburg, Jack, Elderfield Henry, Peene, J., Peene Jan, Elderfield, H., Mervyn Greaves, Middelburg, J.J., Gazeau Frédéric, Carlo H. R. Heip, Gattuso, Jean-Pierre, Heip Carlo H. R., Gattuso Jean-Pierre, Elderfield, Henry, Jean-Pierre Gattuso, Henry Elderfield, Carlo H R Heip, Peene, Jan, Gattuso, J.-P., Gazeau, F.P.H., Greaves Mervyn, Heip, C.H.R.   +33 more
core   +4 more sources

Verification of a large-band metamaterial absorber and its application in the measurement of thermal properties of clothing fabrics

Materials Research Express, 2022
The development and application of smart fabrics is a research hotspots in clothing fabrics. Accurately measuring the thermal conductivity of clothing fabric samples is an important basis for developing corresponding products.
Ge Huang, Min Zhong, Nanguang Su
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Stable isotope values in modern bryozoan carbonate from New Zealand and implications for paleoenvironmental interpretation [PDF]

, 2004
Bryozoan carbonate contains useful geochemical evidence of temperate shelf paleoenvironments. Stable isotope values were determined for 103 modern marine bryozoan skeletons representing 30 species from New Zealand. δ18O values range from -1.4 to 2.8 VPDB,
Nelson, Campbell S., Campbell S. Nelson, Marcus M. Key, Smith, Abigail M., Key, Marcus M., Patterson, William P., Abigail M. Smith, William P. Patterson   +7 more
core   +1 more source