Results 101 to 110 of about 1,061,714 (256)

Exploring the Coordinated Development of Water-Land-Energy-Food System in the North China Plain: Spatio-Temporal Evolution and Influential Determinants

open access: yesLand
Water, land, energy, and food are fundamental resources for human survival and ecological stability, yet they face intensifying pressure from surging demands and spatial mismatches.
Zihong Dai   +4 more
doaj   +1 more source

A Comprehensive Microbial Gene Catalog of the Human Airway Microbiome Across Anatomical Sites and Geographic Regions

open access: yesAdvanced Science, EarlyView.
An integrated Human Airway Microbiome Gene Catalog (iHAMGC) is constructed from 12,273 metagenomic airway samples, providing a high‐resolution reference of respiratory microbial genes. The catalog enables systematic exploration of taxonomic and functional variation across airway niches and geographic regions, revealing site‐specific and region ...
Qing Zhang   +15 more
wiley   +1 more source

DELPHI Barrel Ring Imaging Cherenkov Detector

open access: yes, 2001
DELPHI was one of the four experiments installed at the LEP particle accelerator from 1989 - 2000. This is a piece of the Barrel Ring Imaging Cherenkov detector which was used to identify particles in DELPHI.It measured the Cherenkov light emitted when ...

core  

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

open access: yesAdvanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais   +32 more
wiley   +1 more source

90th Anniversary of the Battle of the Somme 1916 [cartographic material] /

open access: yes, 2006
1-GSGS. Shows entrenchments, fortifications, railways, roads, etc.; Reduced facsimiles of various editions of the now declassified Series GSGS 3062 trench maps held at the National Archives.; Includes historical text. Sheet 1.
Great Britain. Defence Geographic Centre.
core  

Strategic management plan for geographic information systems technology Geographic information systems technology

open access: yes, 1990
"September 1990."Section 1: Executive Summary -- Section 2: Organization of the Plan -- Section 3: Strategic Planning Policy -- Section 4: Goals of the GIS Technology Management Plan -- Section 5: Background -- Section 6: The Potential of GIS Technology ...
Kansas Geographic Information Systems Policy Board
core   +1 more source

Analysis of Land Subsidence During Rapid Urbanization in Chongqing, China: Impacts of Metro Construction, Groundwater Dynamics, and Natural–Anthropogenic Environment Interactions

open access: yesRemote Sensing
Urban land subsidence, a globally prevalent environmental problem and geohazard triggered by rapid urbanization, threatens ecological security and socioeconomic stability.
Yuanfeng Li   +4 more
doaj   +1 more source

A Molten Salt Extraction Method for Palladium Recovery via the CaPd2 Intermetallic Compound

open access: yesAdvanced Science, EarlyView.
A designed Ca → CaPd2 → Pd pathway enables acid–free palladium recovery in molten salt. Calcium alloying forms anionic CaPd2, which is selectively oxidized by iodine from CaI2 to yield high–purity metallic Pd. ABSTRACT To address palladium scarcity and the low efficiency of conventional recovery processes, this work presents a molten–salt extraction ...
Jiapeng Zhang   +6 more
wiley   +1 more source

4000 jaar metaal in Nederland

open access: yes, 1999
il
Jager, Alexander
core  

Revolutionising Agricultural Sustainability: New ‘Furrow Tillage’ can Mitigate Short‐Term Soil‐to‐Atmosphere CO2 Flux and Promote Soil‐Plant‐Microbe Health

open access: yesAdvanced Science, EarlyView.
Furrow tillage resolves the conventional‐vs.‐no‐tillage trade‐off by simultaneously cutting CO2 efflux to 2.0–3.0 g C m−2 d−1 and unlocking high nutrient availability for the rice rhizosphere. This scalable agronomic solution strengthens soil health, enhances plant physiology, reshapes microbial metabolism, and shifts paddy systems toward a net ...
Arnab Majumdar   +10 more
wiley   +1 more source

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