Results 161 to 170 of about 2,175,809 (315)

Spatio‐temporal dynamics of ringed seal density and habitat use in the Arctic's Last Ice Area

open access: yesEcography, EarlyView.
The Arctic is warming at approximately four times the global rate, driving widespread decline in sea ice extent, thickness, and seasonal duration. The ecological consequences of these rapid changes remain poorly understood within the Last Ice Area, a region that includes northern Ellesmere Island and the northwest of Greenland, projected to retain ...
Roxanne D. MacLean   +9 more
wiley   +1 more source

University of California Radiation Laboratory Reports UCRL-1854

open access: yes, 1952
Quarterly summary report of studies conducted through the University of California Radiation Laboratory.
University of California. Radiation Laboratory.
core  

Global patterns of treeline predictability and the gap between the forest and the treeline

open access: yesEcography, EarlyView.
The alpine treeline is the highest elevation at which trees can grow, which is assumed to be controlled by temperature and globally predictable. However, many upper forest limits (UFLs) do not reach this elevation, due natural factors and human disturbance.
Erickson G. Urquiaga‐Flores   +2 more
wiley   +1 more source

University of California Radiation Laboratory Reports UCRL-1632

open access: yes, 1952
Quarterly summary report of studies conducted through the Radiation Laboratory, University of California.
University of California. Radiation Laboratory.
core  

Modeling and Output Optimization of Triboelectric Microphone for Acoustic Energy Harvesting

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work elucidates the fundamental multiphysics coupling mechanisms governing acoustic T‐phone, providing a critical theoretical foundation and a predictive design paradigm for the future engineering and deployment of next‐generation, self‐powered acoustic sensors.
Dan Liu   +6 more
wiley   +1 more source

University of California Radiation Laboratory Reports UCRL-1610

open access: yes, 1951
Quarterly summary report of studies conducted through the Radiation Laboratory, University of California.
University of California. Radiation Laboratory.
core  

Optimal Lithium‐Ion Battery—Supercapacitor Energy Storage System Capacity for Off‐Grid Intermittent Renewable Energy Mini‐Grids

open access: yesEnergy Science &Engineering, EarlyView.
Deployment of an aging‐based controller during designing of optimal lithium‐ion battery—supercapacitor (LB‐Sc) hybrid energy storage system (HESS) capacity, in off‐grid IREMGs, improves performance of the LB and reduces its aging rate. Also, annualised cost of the LB‐Sc HESS improves by 33.15% in relation to optimal LB SESS.
Isaac Gwayi   +2 more
wiley   +1 more source

The Critical Role of Economies of Scale: A Techno‐Economic Assessment of Small‐ Versus Large‐Scale Biogas Upgrading in Rural Tanzania

open access: yesEnergy Science &Engineering, EarlyView.
Small‐scale biogas upgrading can improve methane quality but remains financially unattractive to individual rural households. Community‐scale implementation substantially lowers energy costs, demonstrating that economies of scale are critical to making purified biogas a viable clean‐cooking option in Tanzania.
Emmanuel Nsekela   +5 more
wiley   +1 more source

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