Results 61 to 70 of about 526 (138)

Interconnection, Obligation, Solar Power, and the Remaking of Energy Citizens on and off the Grid in California

open access: yesAmerican Anthropologist, Volume 128, Issue 2, Page 359-368, June 2026.
ABSTRACT Electricity grid infrastructures shape future publics and the contours of political belonging or exclusion, including citizenship. But in fire‐prone, more precariously grid‐connected regions in California, experiments with micro‐ and home nanogrids, subsidized by the state and built in many cases with Tesla products, provide new opportunities ...
Joanne Randa Nucho
wiley   +1 more source

Slow switching and the psychology of memory

open access: yesMind &Language, Volume 41, Issue 3, Page 383-401, June 2026.
This article presents elements of a theory of the representational contents of episodic memory and a new perspective on the relationship between memory and self‐knowledge. These two interrelated outcomes fall out of a novel naturalistic treatment of the debate concerning the compatibility between semantic externalism and a priori self‐knowledge.
Jay Richardson
wiley   +1 more source

Experimental investigation of the unclogging process of propped fractures with dynamic stimulation: influence of the proppant and of the dynamic signal

open access: yesOpen Geomechanics
Dynamic excitation of reservoir systems trapping hydrocarbons is a potentially promising solution for increasing the production. At the laboratory scale, it was found that a dynamic vibration of the fluid pressure could induce an increase in ...
Youssef Fawaz   +3 more
doaj   +1 more source

Experimental study on particle migration in propped fractures of coal seam under true triaxial stress

open access: yesMeitan xuebao
During the production of deep coalbed methane (CBM) after fracturing, the output of coal fines and proppants is prone to occur, leading to a decline in well productivity.
Ruili ZHOU   +3 more
doaj   +1 more source

Experimental study on dynamic evolution characteristics of permeability in shale fracturing zones under creep effects

open access: yesYouqicang pingjia yu kaifa
During shale hydraulic fracturing, strain evolution exacerbates physical damage, leading to differentiated permeability changes across reservoir regions.
JIANG SONGLIAN   +5 more
doaj  

A new impulse-stage sand fracturing technology and its pilot application in the western Sichuan Basin

open access: yesNatural Gas Industry B, 2015
A better placement of proppants has been always the goal pursued in sand fracturing in order to get longer effective fractures and higher flow conductivity. However, it is always difficult to achieve satisfactory effects by conventional processes. On the
Bin Qi   +5 more
doaj   +1 more source

Fracture morphology of variable pumping-rate hydraulic fracturing in middle and deep coal reservoirs

open access: yesPetroleum Exploration and Development
Outcrop coal samples from the Shizhuang South Block of the Qinshui Basin, Shanxi Province, China, were subjected to true triaxial hydraulic fracturing experiments to simulate frature propagation.
Shikang LIU   +6 more
doaj   +1 more source

Experimental study on the pseudo threshold pressure gradient of supported fractures in shale reservoirs

open access: yesJournal of Petroleum Exploration and Production Technology
Pseudo threshold pressure gradient (PTPG) exists in the propped fractured reservoir, but its nonlinear flow law remains unclear. The effects of the mineral composition of shale and microstructure of fracturing fluid on PTPG were analyzed by X-ray ...
Jidong Gao   +5 more
doaj   +1 more source

Study on proppant flowback mechanism during post-fracturing stage based on CFD-DEM

open access: yesEarth Energy Science
Proppant flowback in the post-fracturing flowback period not only reduces the fracture conductivity but also damages equipment. Due to the current lack of experimental or numerical simulation methods for proppant flowback in partial closure fracture, the
Mingkun Lv   +5 more
doaj   +1 more source

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