Results 51 to 60 of about 22,800 (121)

Determination of the parameters of rock viscoelastic creep model and analysis of parameter degradation

open access: yesScientific Reports, 2023
Different stress creep tests are conducted on the sandstone in this study to better describe the creep properties of rocks under different stress states. A model that describes the rock creep process is established.
Zhiming Zheng, Yu Yang, Cheng Pan
doaj   +1 more source

A memory-dependent three-dimensional creep model for concrete

open access: yesCase Studies in Construction Materials
The study of creep models for concrete is of great significance in analyzing and predicting the long-term stability of concrete structures. Based on the theory of memory-dependent derivatives, memory-dependent viscous dashpots that can describe the ...
Deng Zhang   +4 more
doaj   +1 more source

Experimental investigation of the mechanical properties of mud shale under water-bearing conditions and its applications

open access: yesScientific Reports, 2022
Mud shale, used in drilling engineering, is prone to hydration and expansion, resulting in creep deformation that leads to wellbore shrinkage and pipe sticking incidents.
Xinxin Fang   +3 more
doaj   +1 more source

The characteristics of precipitate formed with Ca‐rich groundwater and liquid fertilizer and its effect on Japanese mustard spinach (Brassica rapa rapa var. perviridis)

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 1, March 2026.
Abstract Liquid fertilizer is an essential material in agriculture, and its use tends to increase annually. Liquid fertilizer use also contributes to agricultural development; however, a white precipitate frequently forms with mixing the fertilizer and groundwater, and the effect of precipitate formation is unknown. Therefore, the purpose of this study
Kazutoshi Kinjo   +2 more
wiley   +1 more source

Effect of Time and Stress on Creep Damage Characteristics of Cement-Based Materials

open access: yesBuildings
In the realm of daily life, ensuring the safety of building structures and civil engineering projects remains a paramount research focus. The creep properties of materials significantly influence their long-term loading process.
Yifan Zhang   +5 more
doaj   +1 more source

Creep Properties of Mudstone Interlayer in Bedded Salt Rock Energy Storage Based on Multistage Creep Test: A Case Study of Huai’an Salt Mine, Jiangsu Province

open access: yesGeofluids, 2022
Salt rock is internationally recognized as an excellent medium for energy storage. However, most of the domestic salt mines are lacustrine laminated formations with mudstone interlayers, which have different creep characteristics to pure salt rocks ...
Jie Chen   +6 more
doaj   +1 more source

Accelerating MCMC via Parallel Predictive Prefetching [PDF]

open access: yes, 2014
We present a general framework for accelerating a large class of widely used Markov chain Monte Carlo (MCMC) algorithms. Our approach exploits fast, iterative approximations to the target density to speculatively evaluate many potential future steps of ...
Adams, Ryan P.   +4 more
core  

Do Firms Hoard Cash Under Environmental Pressure? Insights From GHG Emissions and Greenwashing Activities

open access: yesCorporate Social Responsibility and Environmental Management, Volume 33, Issue 2, Page 2313-2327, March 2026.
ABSTRACT Environmental accountability has become a global priority, with governments implementing policies like the Kyoto Protocol and the Paris Agreement. However, many firms continue to operate outside environmentally ethical standards, facing potential regulatory, financial, and reputational risks.
Ones Amri   +3 more
wiley   +1 more source

On the possibility of superconductivity in PrBa2Cu3O7

open access: yes, 1998
Recent reports about observations of superconductivity in PrBa2Cu3O7 raise a number of questions: (i) of various theories striving to explain the Tc suppression in PrxY{1-x}Ba2Cu3O7, are there any compatible with possible superconductivity in ...
A. Shukla   +13 more
core   +1 more source

Investigation of the Programmable Deformation of 4D‐Printed Cassava Starch‐Based Gels: Applications in Baked Foods

open access: yesFood Frontiers, Volume 7, Issue 2, March 2026.
Programmable shape transformations of starch‐based foods were achieved by regulating printing parameters and material composition under baking‐induced dehydration. ABSTRACT 4D printing, an evolution of 3D printing, introduces the dimension of time to enable printed structures to undergo transformations when exposed to external stimuli.
Shengyang Ji   +6 more
wiley   +1 more source

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