Results 181 to 190 of about 126,181 (293)

Micronized calcium carbonate to enhance water-based drilling fluid properties.

Sci Rep, 2023
Basfar S, Elkatatny S.
europepmc   +1 more source

A Novel Amphoteric Ion-Modified, Styrene-Based Nano-Microsphere and Its Application in Drilling Fluid. [PDF]

Materials (Basel), 2023
Zhang X, Liu J, Sun J, Wang Z, Dai Z, Sun Y, Zhang T.   +6 more
europepmc   +1 more source

Sleep Alters the Velocity of Physiological Brain Pulsations in Humans

Advanced Science, EarlyView.
Sleep alters I/CSF oscillatory flow, driven by increased respiratory (29%) and vasomotor pulsation (21%) velocities, while cardiovascular pulsations decreased by (22%). Velocity is quantified using optical flow analysis of MREG data. Spectral power increases alongside these pulsations (spatial correlation, r = 0.35 and r = 0.39, respectively ...
Ahmed Elabasy, Heta Helakari, Tommi Väyrynen, Zalán Rajna, Niko Huotari, Lauri Raitamaa, Ville Isokoski, Matti Järvelä, Mika Kaakinen, Johanna Piispala, Mika Kallio, Vesa Korhonen, Tapio Seppänen, Vesa Kiviniemi   +13 more
wiley   +1 more source

Thermal conductivities under high pressure in core samples from IODP NanTroSEIZE drilling site C0001 [PDF]

, 2011
Abdulagatov, Abdulagatov, Abdulagatova, American Society for Testing and Materials (ASTM), Ashi, Demirci, Expedition 315 Scientists, Expedition 316 Scientists, Franklin, Galson, Goto, Harris, Heki, Hideki Mukoyoshi, Horai, Horai, Horai, Hyndman, Kano, Kinoshita, Kinoshita, Kukkonen, Lachenbruch, Lallemand, Lin, Lin, Lin, Manabu Takahashi, Masataka Kinoshita, Moore, Morin, Osako, Osamu Tadai, Park, Pribnow, Pribnow, Ratcliffe, Sass, Schön, Schön, Seipold, Seipold, Takehiro Hirose, Tanaka, Villinger, Walsh, Wang, Wataru Tanikawa, Weiren Lin, Woodside, Xu, Yamano   +51 more
core   +1 more source

Correction to "Hydrodynamic Analysis and Cake Erosion Properties of a Modified Water-Based Drilling Fluid by a Polyacrylamide/Silica Nanocomposite during Rotating-Disk Dynamic Filtration". [PDF]

ACS Omega
Movahedi H, Jamshidi S, Hajipour M.
europepmc   +1 more source

Midbrain PAG Astrocytes Modulate Mouse Defensive and Panic‐Like Behaviors

Advanced Science, EarlyView.
Astrocytes in the midbrain periaqueductal gray (PAG) dynamically encode threat intensity and shape defensive action selection in mice. Real‐time Ca2+ imaging reveals robust astrocytic activation during predator odor and CO2 exposure. Aberrant astrocytic Ca2+ overactivation disrupts goal‐directed escape, biases behavior toward freezing, and induces ...
Ellane Barcelon, Kyungchul Noh, Minkyu Hwang, Yoon‐Jung Kim, Unjin Lee, Yeon Joo Ryu, Je‐Kyung Ryu, Sang Beom Jun, Se‐Young Choi, Woo‐Hyun Cho, Sung Joong Lee   +10 more
wiley   +1 more source

Shale gas extraction in the UK: a review of hydraulic fracturing [PDF]

, 2012
Bickle, M., Goodman, D., Koppelman, B., Mair, R., Roberts, J., Selley, R., Shipton, Z., Thomas, H., Walker, A., Woods, E., Younger, P.   +10 more
core  

Research and Performance Evaluation of Low-Damage Plugging and Anti-Collapse Water-Based Drilling Fluid Gel System Suitable for Coalbed Methane Drilling. [PDF]

Gels
Li J, Tan Z, Jing Q, Mei W, Shen W, Feng L, Dong T, Hao Z.   +7 more
europepmc   +1 more source

Stochastic Nanoscale Biophysical Cues as a Basis for the Induction of Glioblastoma‐Like Transcriptional Programs in Astrocytes

Advanced Science, EarlyView.
Stochastic nanoscale physical cues induce glioblastoma (GBM)‐associated transcriptional traits in naïve astrocytes leading to spontaneous formation of spheroids. Cells within spheroids express activated‐MMP2 and a differential gene expression pattern involving P53 and NOTCH3, providing evidence for a role for changes in brain topography, as observed in
Laurent Starck, Tobias Butelmann, Sabrina Hogan, Melika Sarem, Bernd Heimrich, Ritwick Sawarkar, Marie‐Françoise Ritz, Gregor Hutter, V. Prasad Shastri   +8 more
wiley   +1 more source

Remarkable improvement in drilling fluid properties with graphitic-carbon nitride for enhanced wellbore stability. [PDF]

Heliyon
Ahmed A, Pervaiz E, Ahmed I, Noor T.
europepmc   +1 more source