Results 61 to 70 of about 131,723 (308)

Strength characteristics of different stress spaces of red sandstone under loading and unloading tests

Scientific Reports
Red sandstone tests were conducted on the rock mechanics test system to clarify the strength and failure characteristics of red sandstone under triaxial loading and different unloading confining pressure rates.
Xiaojuan Zheng, Yunfei Wang, Mengyi Song, Sajid Injamamul Karim   +3 more
doaj   +1 more source

Strength characteristics and damage constitutive model of sandstone under hydro-mechanical coupling

Applied Rheology, 2023
To study the mechanical properties of saturated sandstone, experiments were conducted under hydro-mechanical coupling on saturated sandstone. A damage constitutive model was established to describe the response of saturated sandstone under pore pressure,
Liu Qiang, Zhao Yanlin, Liao Jian, Tan Tao, Wang Xiaguang, Li Yang, Tan Zhe   +6 more
doaj   +1 more source

Experimental study on the acoustic wave propagation characteristics of bedding shales under changes in temperature and pressure

Natural Gas Industry B, 2023
To determine the acoustic wave propagation characteristics of bedded shales under different confining pressures and temperatures, shales from the Longmaxi Formation in the Sichuan Basin are taken as research objects.
Jianfei Ren, Xiangjun Liu, Jian Xiong, Yuchen Cai, Xiaolong Yu, Lianlang Hou   +5 more
doaj   +1 more source

Intraoperative Collection of Ascitic Fluid With Intra‐ or Postoperative Reinfusion in Ovarian Cancer: Safety and Feasibility of a Roller Pumping Method

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Patients with ovarian cancer often present with massive ascites, leading to significant protein loss during surgical procedures. Although cell‐free concentrated ascites reinfusion therapy (CART) is used in palliative settings to mitigate protein loss, its application in intraoperative settings remains unexplored.
Yutaka Yoneoka, Tsukuru Amano, Akimasa Takahashi, Mari Deguchi, Hiroyuki Yamanaka, Yuji Tanaka, Shunichiro Tsuji, Takashi Murakami   +7 more
wiley   +1 more source

Pressure Dependence of Fragile-to-Strong Transition and a Possible Second Critical Point in Supercooled Confined Water

, 2005
By confining water in nano-pores of silica glass, we can bypass the crystallization and study the pressure effect on the dynamical behavior in deeply supercooled state using neutron scattering. We observe a clear evidence of a cusp-like fragile-to-strong
Antonio Faraone, Chun-Wan Yen, Chung-Yuan Mou, H. Kanno, H. E. Stanley, Li Liu, P. C. Shih, P. G. Debenedetti, Sow-Hsin Chen, Yu. A. Osipov   +9 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Fractal Characteristics of Rock Fracture Surface under Triaxial Compression after High Temperature

Advances in Materials Science and Engineering, 2016
Scanning Electron Microscopy (SEM) test on 30 pieces of fractured granite has been researched by using S250MK III SEM under triaxial compression of different temperature (25~1000°C) and confining pressure (0~40 MPa).
X. L. Xu, Z. Z. Zhang
doaj   +1 more source

Yang-Mills thermodynamics at low temperature

, 2007
For the confining phase of SU(2) Yang-Mills thermodynamics we show that the asymptotic series representing the pressure is Borel summable for negative (unphysical) values of a suitably defined coupling constant. The inverse Borel transform is meromorphic
Hofmann, Ralf
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Ductilityof fiber-reinforcedself-consolidatingconcreteundermulti-axial compression

, 2011
The results of 12 multi-axial compression tests performed on cylinders made of self-consolidating concrete, plain (SCC) and reinforced with steel fibers (FR-SCC), are presented.
Chiaia, Bernardino, Fantilli, Alessandro Pasquale, Vallini, Paolo   +2 more
core   +1 more source