Results 61 to 70 of about 183,499,325 (279)

Major engineering breakthrough of Well XA‐1, the deepest ten‐thousand‐meter well in a global sedimentary basin

open access: yesDeep Underground Science and Engineering, EarlyView.
Well XA‐1, completed at a true vertical depth of 11 156 m in the Shawan Sag of the Junggar Basin, is the deepest predominantly near‐vertical well drilled in a sedimentary basin. The figure shows the basin's tectonic framework and well location (a), a structural cross‐section spanning the Shawan Sag and adjacent uplifts (b), and the stratigraphic column
Fangkai Liu   +3 more
wiley   +1 more source

Formation of the National Security Strategy of the Russian Federation in the 1990s: Conditions and Dynamics

open access: yesУправленческое консультирование, 2020
The characteristics of the creation of the National Security Strategy of Russian Federation during the first decade after the USSR collapse are considered in the article.
V. I. Bazhukov
doaj   +1 more source

World's fastest 10 000‐m breakthrough: The XY‐22 well redefines deep‐earth access in the Tarim Basin

open access: yesDeep Underground Science and Engineering, EarlyView.
The Tarim Basin in northwestern China hosts one of the world's deepest petroleum systems, exemplified by the XY‐22 ultra‐deep well (bottom depth: 11 116 m; ~220°C, ~145 MPa). This study integrates tectonic mapping, geological cross‐sections, ultraviolet fluorescence microscopy, and optical photothermal infrared (OPTIR) spectroscopy to characterize ...
Qingwen Tan   +4 more
wiley   +1 more source

Costing-out the Big Bang: Impact of external shocks on the Armenian economy at the outset of transition [PDF]

open access: yes
This paper explores factors of economic decline in the small republican economies of the former USSR. It develops quantitative estimates of the costs of major transitional shocks for Armenia during the early transition, including the direct impact of ...
Freinkman, Lev, Avanesyan, Vahram
core  

A case study in causality: The collapse of the soviet union.

open access: yes, 2017
This figure tracks the path through time of six nations that emerged after the collapse of the Soviet Union (in 1990–91). As the collapse unfolded, the fraction of people employed by the government shrank rapidly, as did energy use per capita.
Blair Fix (3727255)
core   +1 more source

Seismic Performance of Reduced‐Strength Steel MRFs With SMA‐Based Superelastic Friction Dampers: An Experimental Investigation

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Shape memory alloys (SMAs) exhibit excellent self‐centering capability due to their stress‐induced phase transformation, making them highly suitable for applications in resilient infrastructure. This study investigates the seismic performance of reduced‐strength moment‐resisting frames (MRFs) equipped with SMA‐based superelastic friction ...
Faisal Nissar Malik   +5 more
wiley   +1 more source

Does gravity induce wavefunction collapse? An examination of Penrose's conjecture [PDF]

open access: yes, 2013
According to Penrose, the fundamental conflict between the superposition principle of quantum mechanics and the principle of general covariance of general relativity entails the existence of wavefunction collapse, e.g.
Gao, Shan, Shan Gao
core  

Tail Risk Transmission in Agricultural and Energy Markets

open access: yesJournal of Futures Markets, EarlyView.
ABSTRACT This paper examines downside hedging, tail diversification, and extreme tail risk transmission between crude oil and agricultural commodity futures over two decades. We develop complementary indicators of downside dependence, including sign‐switching frequency and persistence, to assess tail risk dynamics, hedging effectiveness, and associated
Emmanuel Senyo Fianu   +3 more
wiley   +1 more source

The Great Synchronization of International Trade Collapse [PDF]

open access: yes, 2012
In this study we provide novel results on the extent of international trade synchronization during periods of trade collapses and US recessions.
Antonakakis, Nikolaos
core   +1 more source

Beyond political risk: Toward a holistic understanding of multinational enterprise resilience in the era of cascading crises

open access: yesGlobal Strategy Journal, EarlyView.
Abstract Research Summary This article develops a conceptual framework for understanding multinational enterprise (MNE) resilience in the era of cascading crises. We define resilience as the MNE's capacity to absorb disruption, maintain or restore functioning, and reconfigure operations as conditions shift.
Gerard George, Chang Hoon Oh
wiley   +1 more source

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