Results 21 to 30 of about 2,848,636 (250)

Coordinate Systems and Map Projections Used in Mapping and GIS Activities in Turkey [PDF]

open access: yesMicro, Macro & Mezzo Geoinformation
Map projections and coordinate reference systems (CRS) play a crucial role in mapping and Geographical Information Systems (GIS) applications. In Turkey, large-scale mapping is standardized via a juridical regulation, the Large-scale Map and Geospatial ...
İbrahim Öztuğ Bildirici
doaj   +1 more source

Topographic and thematic (in)visibility of Small Island Developing States in a world map

open access: yesJournal of Maps, 2020
Many world maps visualize global data to represent the statistical and spatial relationships among countries. These maps are typically printed in reports or displayed online at a small scale. At such scale, small nations are difficult to perceive or even
Jessica Gosling-Goldsmith   +2 more
doaj   +1 more source

Custom Map Projections for Regional Groundwater Models

open access: yesGround Water, 2017
For regional groundwater flow models (areas greater than 100,000 km2), improper choice of map projection parameters can result in model error for boundary conditions dependent on area (recharge or evapotranspiration simulated by application of a rate ...
E. Kuniansky
semanticscholar   +1 more source

Evaluating Young People’s Area Estimation of Countries and Continents

open access: yesISPRS International Journal of Geo-Information, 2019
For decades, cartographers and cognitive scientists have speculated about the influence of map projections on mental representations of the world. The development of Web 2.0 and web mapping services at the beginning of the 21st century—such as Google ...
Lieselot Lapon   +4 more
doaj   +1 more source

Matching Standard and Secant Parallels in Cylindrical Projections

open access: yesISPRS International Journal of Geo-Information, 2023
Map projections are usually interpreted by mapping a sphere onto an auxiliary surface, and then the surface is developed into a plane. It is taken as a fact without proof that the parallels in which the auxiliary surface intersects the sphere are mapped ...
Miljenko Lapaine
doaj   +1 more source

Circumcentering approximate reflections for solving the convex feasibility problem

open access: yesFixed Point Theory and Algorithms for Sciences and Engineering, 2022
The circumcentered-reflection method (CRM) has been applied for solving convex feasibility problems. CRM iterates by computing a circumcenter upon a composition of reflections with respect to convex sets. Since reflections are based on exact projections,
G. H. M. Araújo   +5 more
doaj   +1 more source

The Light Source Metaphor Revisited—Bringing an Old Concept for Teaching Map Projections to the Modern Web

open access: yesISPRS International Journal of Geo-Information, 2019
Map projections are one of the foundations of geographic information science and cartography. An understanding of the different projection variants and properties is critical when creating maps or carrying out geospatial analyses.
Magnus Heitzler   +3 more
doaj   +1 more source

Prevalence of 21 Physician‐Defined Severe Toxicities Following Childhood Acute Lymphoblastic Leukemia Treatment: Australian Retrospective Cohort Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Acute lymphoblastic leukemia (ALL) is the most common pediatric cancer, with an overall survival now surpassing 90% in developed countries. However, treatments are not without adverse effects. In this study, we apply the severe toxicity‐free survival (STFS) framework to determine the prevalence of 21 physician‐defined severe ...
Lane Collier   +10 more
wiley   +1 more source

Mapping brain-wide excitatory projectome of primate prefrontal cortex at submicron resolution and comparison with diffusion tractography

open access: yeseLife, 2022
Resolving trajectories of axonal pathways in the primate prefrontal cortex remains crucial to gain insights into higher-order processes of cognition and emotion, which requires a comprehensive map of axonal projections linking demarcated subdivisions of ...
Mingchao Yan   +18 more
doaj   +1 more source

Fundamentals of Geo-Positioning Reference Frames, Map Projections and Their Applications [PDF]

open access: yesMaǧallaẗ Markaz Al-Buḥūṯ Al-Ǧuġrāfiyyaẗ wa Al-Kārtūğirāfiyyaẗ, 2020
: A map is defined as a miniature drawing of the Earth's surface or part of it. The designation was based on many projections used to transmit information from reality to the map, and this would be in the processing of geospatial information.
ايمان القحطاني
doaj   +1 more source

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