Results 81 to 90 of about 1,771,434 (327)

Mass‐Transport–Engineered CCM Architecture Employing MPL‐Free Carbon Paper and Graphene‐Coated Ni Foam Channels for High‐Temperature PEM Fuel Cells

open access: yesAdvanced Science, EarlyView.
A CCM‐based architectural strategy is introduced for high‐temperature PEM fuel cells, enabling MPL‐free carbon paper gas diffusion layers via decal‐transfer processing. By co‐engineering the CCM, GDL, and a G‐foam flow field, oxygen transport is enhanced while phosphoric‐acid leakage is suppressed, resulting in high power density and stable operation ...
Seongmin Cho   +6 more
wiley   +1 more source

Intermontane eolian sand sheet development, Upper Tulum Valley, central-western Argentina

open access: yesBrazilian Journal of Geology
The intermontane Upper Tulum eolian sand sheet covers an area of ca. 125 km² at north of the San Juan Province, central-western Argentina. The sand sheet is currently an aggrading system where vegetation cover, surface cementation and periodic flooding ...
Patrick Francisco Fuhr Dal' Bó   +1 more
doaj   +1 more source

Multi-hazard assessment in Europe under climate change

open access: yesClimatic Change, 2016
While reported losses of climate-related hazards are at historically high levels, climate change is likely to enhance the risk posed by extreme weather events.
G. Forzieri   +9 more
semanticscholar   +1 more source

Assessing Mesoscale Heterogeneities in Hard Carbon Electrodes Through Deep Learning‐Assisted FIB‐SEM Characterization, Manufacturing and Electrochemical Modeling

open access: yesAdvanced Energy Materials, EarlyView.
A combination of discrete and finite element method models for the current collector deformation and electrochemical performance analysis, respectively. The models are calibrated and validated with electrochemical and imaging data of hard carbon electrodes. These electrodes were manufactured with different parameters (slurry solid contents of 35 and 40
Soorya Saravanan   +12 more
wiley   +1 more source

Biogeochemical dynamics of dissolved organic matter in the Changjiang Estuary during a late flooding season

open access: yesFrontiers in Marine Science
To address the knowledge gap concerning the behavioral dynamics of dissolved organic matter (DOM) in the Changjiang Estuary during the late flooding season, we conducted an extensive sampling campaign during which 188 water samples were systematically ...
Zhongqiao Li   +14 more
doaj   +1 more source

Hydrodynamic Feedbacks of Salt‐Marsh Loss in the Shallow Microtidal Back‐Barrier Lagoon of Venice (Italy)

open access: yesWater Resources Research, 2023
Extensive loss of salt marshes in back‐barrier tidal embayments is ongoing worldwide as a consequence of land‐use changes, wave‐driven lateral marsh erosion, and relative sea‐level rise compounded by mineral sediment starvation.
Alvise Finotello   +5 more
doaj   +1 more source

Landsscape diachronic reconstruction in the Tiber Delta during historical time. A holistic approach [PDF]

open access: yes, 2018
The sensitivity of deltas in response to evolutionary factors makes them important archives of the events that occurred in the entire river basin.
Bellotti, Piero   +2 more
core   +1 more source

Selective Electrolysis of Water Under Artificial Seawater Conditions Using Transition Metal Borate Anodes

open access: yesAdvanced Energy Materials, EarlyView.
The borate‐based cobalt‐iron catalyst promotes selective oxidation of water rather than chlorine evolution reaction during electrolysis of seawater. When integrated into a zero‐gap electrolyzer prototype, this catalyst supports robust splitting of artificial seawater into oxygen and hydrogen on an extended timescale.
Ananta R. Fareza   +10 more
wiley   +1 more source

Study on bearing characteristics and instability law of coal pillar dams under the effect of mining and water immersion

open access: yesMeikuang Anquan
Coal mine underground reservoir water storage technology has become one of the important ways for the coordinated development of coal resource mining and water resource protection in western mining areas of China, and the stability of coal pillar dam ...
Junmin WU
doaj   +1 more source

Scientific investigations into the eutrophication of the Norfolk Broads [PDF]

open access: yes, 1980
The word ”Broads” is used to describe a series of relatively shallow lakes resulting from the flooding of medieval peat diggings. Broadland is essentially freshwater, but because the rivers have such low gradients the lower reaches are brackish.
Davies, A.W.
core  

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