Results 131 to 140 of about 41,080 (299)
Rock brittleness capacity upon compressive fracture energy dissipation to assess drilling efficiency
, 2016 Rock drilling is essential in the mining industry. Complexities involved in the drilling process encompassing not only rock properties but also the nature of the drilling action impact the drilling performance and operational costs.
Taheri, A., Chanda, E., Munoz, H.
core
Aspects of energy requirements for rock drilling [PDF]
, 1974 Development of laboratory rock breakage techniques to relate energy and surface area produced by slow compression, drop hammer and stamp mill. A detailed study of laboratory rotary-percussive drilling in a wide range of rocks under different ...
Wootton, David
core
Numerical Modelling of the Heterogeneous Rock Fracture Process Using Various Test Techniques
, 2007 A series of numerical tests including both rock mechanics and fracture mechanics tests are conducted by the rock and tool (R-T2D) interaction code coupled with a heterogeneous masterial model to obtain the physical-mechanical properties and fracture ...
Liu, H. Y., +7 more
core +1 more source
CD4+ Tregs Drive Post‐Ischemic Sprouting Angiogenesis via Endothelial YY1/MAML1 Reactivation
Advanced Science, EarlyView.ABSTRACT Microvascular complications of diabetes are chronic diseases of small vessels. We previously found that CD4+ regulatory T‐cells (Tregs) are markedly reduced in type 2 diabetes (T2D) after ischemic injury in both mice and humans, and that Treg deficiency in immunodeficient mice impairs vascular regeneration.
Hang Qu +10 more
wiley +1 more source
Scientific ReportsThe stability of rock masses is critically influenced by pre-existing cracks, yet the micro-mechanisms governing cracks evolution under varying crack geometries remain inadequately quantified. This work introduces a novel, rock-specific acoustic emission
Peng Sha +3 more
doaj +1 more source
Geotecnia, 1971 The advent and evolution of roc mechanics as independent subjects are briefly described as well as its affinities with other subjects. The reasons for the rapid growth of this new branch of mechanics are stated, and some typical instances of its numerous applications in the field of engineering and geosciences are given. The paper ends with the ...
openaire +1 more source
Advanced Science, EarlyView.Pancreatic neuroendocrine tumors frequently silence MEN1 through epigenetic mechanisms. Here, SIRT7 recruits DNMT1 to the MEN1 promoter, drives hypermethylation, and enhances DNA repair. Inhibiting SIRT7 restores MEN1, reduces MRN complex abundance, impairs double‐strand break repair, and sensitizes PanNET models to radiation, supporting SIRT7 as a ...
Jianyun Jiang +11 more
wiley +1 more source
Rock slope design using slope stability rating (SSR) - Application and field verifications
, 2007 SSR (Slope Stability Rating) classification system is a new rating system which has been proposed in Iran to study the stability of fractured rock slopes of non-structurally controlled failures.
A Taheri, Taheri, A., K Tani, Tani, K.
core +1 more source
Advanced Science, EarlyView.High‐throughput single‐cell analysis of resuscitating bacteria reveals a starvation‐history‐dependent transiently tolerant subpopulation that survives β$\beta$‐lactam exposure by temporarily reducing growth. Distinct from classical persisters, these actively growing yet dynamically modulated cells dominate survival across clinically relevant antibiotic
Kieran Abbott +5 more
wiley +1 more source
BuildingsThe durability of concrete in immersed tunnels is critically influenced by the coupled effects of stress, seepage, and chemical erosion, particularly in inland water environments.
Qixian Wu +4 more
doaj +1 more source