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ECONOMIC SANCTIONS IN THE COMPETITION
Published 2016-07-01Subjects: “…sanctions…”
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An Experimental Study of Seepage Properties in Crushed Sandstone and Mudstone
Published 2019-01-01“…Seepage properties of sandstone and mudstone were tested on specimens under six axial displacement levels. …”
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Experimental Study on Permeability of Fractured Sandstone with Different Tips
Published 2020-01-01Subjects: “…sandstone…”
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Creep characteristics of sandstone during freezing/thawing process
Published 2024-11-01“…This study focused on the sandstone from a slope engineering in the cold region. …”
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Aging damage characteristics of acid‐etched sandstone samples
Published 2024-11-01“…Abstract To investigate the erosive damage effect of the acidic solution on sandstone, experiments were conducted to examine the macro‐ and micro‐characteristics of sandstone samples under different acid etching times. …”
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Advantages of Shear Wave Seismic in Morrow Sandstone Detection
Published 2011-01-01“…The Upper Morrow sandstones in the western Anadarko Basin have been prolific oil producers for more than five decades. …”
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Effect of Temperature and Strain Rate on the Brittleness of China Sandstone
Published 2021-01-01“…To quantitatively study the influence of temperature and strain rate on the brittleness of sandstone, the mechanical parameters of sandstone under different temperatures and strain rates are collected from the previous literature, and two empirical equations for calculating rock brittleness are used to quantitatively calculate and evaluate the brittleness of sandstone. …”
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Mechanical Properties of Sandstones under Initial Unloading Damage
Published 2021-01-01“…To study the influence of initial unloading damage on the mechanical properties of sandstone, the repeated loading test of unloading damaged sandstone was carried out considering 8 initial unloading quantities of 100%, 93.33%, 86.67%, 80%, 73.33%, 66.67%, 40%, and 0%. …”
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Navajo Sandstone concretions record extended magnetic chronology
Published 2025-02-01“…Abstract This study investigates iron oxide concretions from the Jurassic Navajo Sandstone in Utah as potential recorders of long-term magnetic field variations. …”
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Effect of Water Content on the Impact Propensity of White Sandstone
Published 2023-01-01“…The influence law of water content was analyzed on the strength characteristics, energy change characteristics, and impact propensity of white sandstone. The results showed that (1) the internal structure of the sandstone gets softened with the increase of the water content. …”
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Characterization of Nanoscale Pores in Tight Gas Sandstones Using Complex Techniques: A Case Study of a Linxing Tight Gas Sandstone Reservoir
Published 2021-01-01“…Results show that tight gas sandstones are primarily comprised of residual interparticle and clay-dominated pores. …”
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SANCTIONS: POLITICAL AND ECONOMIC FORESHORTENING
Published 2019-06-01Subjects: “…sanctions…”
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Effectiveness of Sanctions in International Politics
Published 2021-09-01Subjects: “…economic sanctions…”
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Understanding Effectiveness of International Sanctions
Published 2019-07-01Subjects: “…targeted sanctions…”
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SANCTIONS AND THEIR IMPACT ON THE IRAN’S ECONOMY
Published 2019-11-01Subjects: Get full text
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Fracability Evaluation Method and Influencing Factors of the Tight Sandstone Reservoir
Published 2021-01-01“…In this study, a systematic model was proposed for the fracability evaluation of tight sandstone reservoirs. The rock mechanics tests and sonic tests demonstrated that tight sandstone reservoir is characterized by high brittleness, high fracture toughness, and weak development of natural fractures. …”
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