Results 121 to 130 of about 2,257,902 (405)

Mapping Ancient Structures and Demonstrating Integrated Archaeological Geophysics at Huacas de Moche, Peru

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT At the Huacas de Moche (HdM), one of the most prominent archaeological sites in Trujillo, Peru, the needs of an expanding modern community are in direct conflict with the desire to preserve the wealth of archaeological information. The undetermined extent of the HdM site introduces disputes in land usage where potential archaeological features
Jared Low   +5 more
wiley   +1 more source

Geology of symmetric grounds [PDF]

open access: yesarXiv, 2019
Let us say that a model of $\mathsf{ZF}$ is a symmetric ground if $V$ is a symmetric extension of the model. In this paper, we investigate set-theoretic geology of symmetric grounds. Under a certain assumption, we show that all symmetric grounds of $V$ are uniformly definable. We also show that if $\mathsf{AC}$ is forceable over $V$, then the symmetric
arxiv  

Reconstructing a single-head formula to facilitate logical forgetting [PDF]

open access: yesarXiv, 2020
Logical forgetting may take exponential time in general, but it does not when its input is a single-head propositional definite Horn formula. Single-head means that no variable is the head of multiple clauses. An algorithm to make a formula single-head if possible is shown.
arxiv  

Coastal sand dune geology: Eastern Head, Trescott Twp, Maine [PDF]

open access: yes, 2023
Maine Geological Survey, Open-File Map 23-552.https://digitalmaine.com/mgs_maps/3711/thumbnail ...
Dickson, Stephen M, Slovinsky, Peter A
core  

Coastal sand dune geology: Hockamock Head, Swans Island, Maine [PDF]

open access: yes, 2023
Maine Geological Survey, Open-File Map 23-347.https://digitalmaine.com/mgs_maps/3506/thumbnail ...
Dickson, Stephen M, Slovinsky, Peter A
core  

Photogrammetric documentation in tunneling

open access: yesCivil Engineering Design, EarlyView.
Abstract Photogrammetric surveys for geological excavation documentation are standard practice in tunnel construction, benefiting from the sector's ongoing digitalization. However, the application of photogrammetry often remains confined to geological assessments. By creating comprehensive 3D models of excavated tunnels, it is also possible to evaluate
Andreas Zani   +2 more
wiley   +1 more source

Coastal sand dune geology: West Quoddy Head, Lubec, Maine [PDF]

open access: yes, 2023
Maine Geological Survey, Open-File Map 23-559.https://digitalmaine.com/mgs_maps/3718/thumbnail ...
Dickson, Stephen M, Slovinsky, Peter A
core  

Evaluating the feasibility of using a rapeseed oil‐derived anionic polymeric surfactant for enhanced oil recovery from carbonate/sandstone composite reservoirs

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
The experimental procedure for evaluating the rapeseed oil‐based polymeric surfactant in enhanced oil recovery. Abstract This study aims to investigate enhanced oil recovery from carbonate/sandstone composite (CSC) reservoirs using a negative‐charged rapeseed oil‐based polymeric surfactant.
Iman Nowrouzi   +2 more
wiley   +1 more source

The Geology of Gaspra

open access: yes, 1994
The surface of Gaspra can be divided into several facets separated by ridges. Superimposed on the facets and ridges are two populations of craters. Type 1 craters are crisply defined and constitute a production function of impact origin.
M. Carr   +6 more
semanticscholar   +1 more source

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