Results 51 to 60 of about 3,287,588 (278)

Pore structure and gas content evaluation of coal-rock gas using well log data

Unconventional Resources
The pore structure of coal significantly affects the adsorbability, desorption, and seepage behavior of coal-rock gas. This study firstly represents a comprehensive assessment of pore structure and fractal dimension characteristics for the low-medium ...
Fei Zhao, Jin Lai, Lu Xiao, Zongli Xia, Zhongrui Wang, Ling Li, Bin Wang, Guiwen Wang   +7 more
doaj   +1 more source

Geomechanical unit modeling using seismic and well log data in one of the southwestern Iranian oilfields

Journal of Petroleum Exploration and Production Technology, 2020
Geomechanical modeling plays a substantial role in the life cycle of a hydrocarbon reservoir and is a key factor in drilling operation optimization. Formations with low mechanical stability can cause wellbore instability or failure during drilling.
Mahdi Nazari Sarem, Mohammad Ali Riahi
doaj   +1 more source

The evolution of HI and CIV quasar absorption line systems at 1.9 < z < 3.2

, 2013
We have investigated the distribution and evolution of ~3100 intergalactic HI absorbers with HI column densities log N(HI) = [12.75, 17.0] at 1.9 < z < 3.2, using 18 high resolution, high S/N quasar spectra obtained from the ESO VLT/UVES archive. We used
Carswell, Robert F., Kim, Tae-Sun, Müller, Volker, Partl, Adrian M.   +3 more
core   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Improved Implementation of Point Location in General Two-Dimensional Subdivisions

, 2012
We present a major revamp of the point-location data structure for general two-dimensional subdivisions via randomized incremental construction, implemented in CGAL, the Computational Geometry Algorithms Library. We can now guarantee that the constructed
D.G. Kirkpatrick, D.P. Dobkin, D.T. Lee, E. Berberich, E. Flato, F.P. Preparata, H. Edelsbrunner, J. Snoeyink, K. Mulmuley, N. Sarnak, O. Devillers, R. Seidel, R. Seidel   +12 more
core   +2 more sources

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

The Porosity Prediction of One of Iran South Oil Field Carbonate Reservoirs Using Support Vector Regression [PDF]

Iranian Journal of Oil & Gas Science and Technology, 2013
Porosity is considered as an important petrophysical parameter in characterizing reservoirs, calculating in-situ oil reserves, and production evaluation. Nowadays, using intelligent techniques has become a popular method for porosity estimation.
Mohsen Karimian, Nader Fathianpour, Jamshid Moghaddasi   +2 more
doaj   +1 more source

Inhibiting stearoyl‐CoA desaturase suppresses bone metastatic prostate cancer by modulating cellular stress, mTOR signaling, and DNA damage response

FEBS Letters, EarlyView.
Bone metastasis in prostate cancer (PCa) patients is a clinical hurdle due to the poor understanding of the supportive bone microenvironment. Here, we identify stearoyl‐CoA desaturase (SCD) as a tumor‐promoting enzyme and potential therapeutic target in bone metastatic PCa.
Alexis Wilson, Mackenzie K Herroon, Shane Mecca, Laimar C Garmo, Jacob Lindquist, Shrila Rajendran, Steve M. Patrick, Izabela Podgorski   +7 more
wiley   +1 more source

Geomechanical properties evaluation of Mauddud formation based on experimental measurements and well log data

Iraqi Journal of Chemical and Petroleum Engineering
    Mauddud formation is one of the most prominent formations in Northeastern Iraq due to its significant hydrocarbon reserves, making accurate geomechanical characterization essential for safe drilling operations and informed development planning. This
Mohammed Almojahed F. Al-jumaili, Nagham J. Al-Ameri   +1 more
doaj   +1 more source

PETROPHYSICAL EVALUATION OF WELL LOG DATA TO ANALYSE RESERVOIR PROPERTIES IN OGBA FIELD, NIGER DELTA, NIGERIA [PDF]

Geological Behavior
This study evaluates the petrophysical characteristics of Ogba Field in the Niger Delta Basin, Nigeria, using well log data (gamma ray, resistivity, neutron, and density logs) from two wells (Ogba-1 and Ogba-2) and core data from Ogba-4ST.
Khadijah Abdullahi Ahmad, Sani Kasim, Auwalu Lawan Yola   +2 more
doaj   +1 more source