Results 21 to 30 of about 2,146,528 (354)
Hydrographic and hydrochemical characteristics of selected groundwater outflows in desert and semi-desert areas [PDF]
The presence of natural groundwater outflows depends on many factors, such as lithology, geological structure, and climate. Areas with particularly poor crenological recognition are arid and semi-arid regions, primarily due to rarity of groundwater ...
Tadeusz Molenda
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Hardware Design of 3-Axis Motion Platform with Load Compensation Mechanism [PDF]
The motion platform supports the trainee in experiencing a sense of reality in virtual space by performing a motion on the available degrees of freedom for a motion that mimics a specific motion in connection with a virtual reality content or a simulator.
Jeong Woo Park +4 more
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The Hot Spring Hypothesis for an Origin of Life
We present a testable hypothesis related to an origin of life on land in which fluctuating volcanic hot spring pools play a central role. The hypothesis is based on experimental evidence that lipid-encapsulated polymers can be synthesized by cycles of ...
B. Damer, D. Deamer
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The demand for fresh spring water recently increased due to intensive domestic, industrial irrigation practices which typically caused depletion of water resources and deterioration of water quality.
A. Taloor +6 more
semanticscholar +1 more source
ABSTRAK Mata air merupakan pemunculan air tanah ke permukaan tanah. Pemanfaatan mata air sangat beragam, antara lain penggunaan untuk keperluan air minum, irigasi, perikanan, untuk obyek wisata. Mata air mempunyai debit terbatas, namun kualitasnya baik,
Sudarmadji Sudarmadji +3 more
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Parametric and numerical modeling tools to forecast hydrogeological impacts of a tunnel
The project of interest involving a hydroelectrical diversion tunnel through a crystalline rock massif in the Alps required a detailed hydrogeological study to forecast the magnitude of water inflows within the tunnel and possible effects on groundwater
Valentina Vincenzi +3 more
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Spring warming substantially advances leaf unfolding and flowering time for perennials. Winter warming, however, decreases chilling accumulation (CA), which increases the heat requirement (HR) and acts to delay spring phenology.
Huanjiong Wang +6 more
semanticscholar +1 more source
Spring technique for correction of multilevel deformity using hexapod external fixator
Context: Osteotomies in several parts of one long bone are recommended for correction of a long, curved, and wide-angled deformity. Hexapod external fixators (HEFs) allow for the single-stage correction of multiplanar deformity, but they are heavy ...
Leonid N Solomin +5 more
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Slovenská terminológia travertínov, penovcov a príbuzných terestrických vápencov [PDF]
The paper follows on a review articles on Slovak travertines and tufa published in English in 2021. Geomorphological terms such as ‘fissure ridge’, ‘coalesced mound’, ‘self-buiding channel’, ‘keeled waterfall’, ‘smooth slope’, ‘terrased slope’, ‘dams ...
Daniel Pivko
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An improved model for shield tunnels with double-layer linings and its application in engineering
An improved model for shield tunnels with double-layer linings is proposed. It can reflect the nonlinear characteristic of bending stiffness of segment joints and the failure mechanism of compression and shear springs between segments and secondary ...
WANG Jun 1, XU Guo-wen 2, WEI Yan-qing 1, HE Jia 1, HE Chuan 2, WANG Shi-min 2
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