Results 31 to 40 of about 165,045 (285)
, 2009 Optimal paths play a fundamental role in numerous physical applications ranging from random polymers to brittle fracture, from the flow through porous media to information propagation.
Andrade Jr, J. S. +3 more
core +1 more source
Fracturing highly disordered materials
, 2012 We investigate the role of disorder on the fracturing process of heterogeneous materials by means of a two-dimensional fuse network model. Our results in the extreme disorder limit reveal that the backbone of the fracture at collapse, namely the subset ...
A. A. Moreira +8 more
core +1 more source
Balancing Hydraulic Fracturing’s Environmental and Economic Impacts: The Need for a Comprehensive Federal Baseline and the Provision of Local Rights [PDF]
, 2013 Reliable evaluation methods is needed to ensure that investments in energy conservation measures (ECMs) and the construction of new energy efficient buildings lives up to the promised and expected performance.
Garmezy, Adam
core +2 more sources
Method for calculation of drilling-and-blasting operations parameters for emulsion explosives [PDF]
, 2019 Purpose. Development of a new method for calculation of drilling-and-blasting operations parameters during underground mining with application of emulsion explosives taking into account their energy characteristics as well as physical and mechanical ...
Khomenko, O +3 more
core +1 more source
A full three‐dimensional fracture propagation model for supercritical carbon dioxide fracturing
Energy Science & Engineering, 2020 Supercritical carbon dioxide fracturing is an environmentally friendly anhydrous method. To study the propagation process during supercritical carbon dioxide fracturing, a full three‐dimensional model, coupled rock deformation, fluid transport, heat ...
Yuting He +5 more
doaj +1 more source
Shuiwen dizhi gongcheng dizhi, 2021 Previous studies on the application of Digital Image Correlation(DIC) method in rock mechanics have mainly focused on obtaining the contours of deformation fields, whereas little attention has been paid to perform quantitative analysis on these ...
Ke ZHANG, Na LI
doaj +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
Determination of pre-Darcy/Darcy/non-Darcy seepage patterns in coal around extraction boreholes
Meitan xuebaoThe stress concentration phenomenon in extraction drill holes easily leads to different degrees of damage to the coal body structure around the holes, and the redistribution of stress also causes the formation of a large number of pores and fissure ...
Mingkun PANG +4 more
doaj +1 more source
Research and Application of Fiber Carrying Proppant Fracturing Technology in Eastern Ordos Basin
Shiyou jixie, 2021 When conventional fracturing technology is used to conduct fracturing in the gas reservoirs of eastern Ordos Basin, some problems such as low gas flow rate, poor rate maintenance capability and difficult development often occur.
Hu Guangming, Ji Suibo, Gao Yu
doaj
Hematopoietic (stem) cells—The elixir of life?
FEBS Letters, EarlyView.The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo +4 more
wiley +1 more source