Results 61 to 70 of about 952,384 (306)

An improved YOLOv7 network achieved precise mapping of Moso bamboo stem density by UAV combined with Sentinel-2 images

Ecological Indicators
Stem density is an important indicator for investigating aboveground biomass (AGB) and productivity of Moso bamboo forests. Traditional field survey methods are costly and difficult to implement.
Lujin Lv, Yinyin Zhao, Xuejian Li, Jiacong Yu, Meixuan Song, Lei Huang, Fangjie Mao, Huaqiang Du   +7 more
doaj   +1 more source

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

Advanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi, Alexander Adamczyk, Nora Brachhold, Gert Schmidt, Jana Hubálková, R. Gumeniuk, Alexandros Charitos, Christos G. Aneziris   +7 more
wiley   +1 more source

Flexible Ag2Se-based thin-film thermoelectrics for sustainable energy harvesting and cooling

Nature Communications
The high cost and complexity of fabrication limit the large-scale application of flexible inorganic thermoelectric materials. Currently, Bi2Te3-based materials are the only commercially viable option, but the inclusion of Te significantly increases ...
Wenyi Chen, Meng Li, Xiaodong Wang, Joseph Otte, Min Zhang, Chengyang Zhang, Tianyi Cao, Boxuan Hu, Nanhai Li, Wei-Di Liu, Matthew Dargusch, Jin Zou, Qiang Sun, Zhi-Gang Chen, Xiao-Lei Shi   +14 more
doaj   +1 more source

OCEAN CARBON SINKS AND INTERNATIONAL CLIMATE POLICY [PDF]

Terrestrial sinks have entered the Kyoto Protocol as offsets for carbon sequestration, but ocean sinks have escaped attention. Ocean sinks are as unexplored and uncertain as were the terrestrial sinks at the time of negotiation.
Katrin Rehdanz, Patrick Wetzel, Richard S.J. Tol   +2 more
core  

Further detections of OH masers in carbon stars with silicate features [PDF]

, 2000
A sample of J-type carbon stars was searched for OH maser emission. The new detection of three OH lines towards two silicate carbon stars is reported. In V778 Cyg, previously known as the main-lines (1665 and 1667 MHz) maser source, the satellite 1612 ...
C Barnbaum, CB Stephenson, D Engels, D Engels, I Yamamura, IR Little-Marenin, IR Little-Marenin, IR Little-Marenin, K Ohnaka, M Jura, NR Trams, PS Chen, T Lloyd, Willems F.J., de Jong T.   +13 more
core   +2 more sources

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

Advanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert, Matheus Roberto Bellé, Florian Kerber, Dinesh Kumar Gunasekar, Hans‐Jörn Weddige, Christos G. Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Hypoxia lowers cell carbon and nitrogen content and accelerates sinking of a marine diatom Thalassiosira pseudonana

Frontiers in Marine Science
The positive or negative effect of a decrease in dissolved O2 on the photophysiology of phytoplankton is determined by the duration of light exposure.
Bokun Chen, Bokun Chen, Hui Song, Hui Song, Ge Xu, Hongli Ji, Hongli Ji, Xue Yang, Xue Yang, Gang Li   +9 more
doaj   +1 more source

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

Advanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk, Farhan Hossain, Felipe A. Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source

Enabling ultra-flexible inorganic thin-film-based thermoelectric devices by introducing nanoscale titanium layers

Nature Communications
Here, we design exotic interfaces within a flexible thermoelectric device, incorporating a polyimide substrate, Ti contact layer, Cu electrode, Ti barrier layer, and thermoelectric thin film. The device features 162 pairs of thin-film legs with high room-
Ming Tan, Xiao-Lei Shi, Wei-Di Liu, Yong Jiang, Si-Qi Liu, Tianyi Cao, Wenyi Chen, Meng Li, Tong Lin, Yuan Deng, Shaomin Liu, Zhi-Gang Chen   +11 more
doaj   +1 more source

Raman Spectroscopic Identification of Oxide Phases in a Corroded MgO–Steel Composite Anode Used in Aluminum Molten Salt Electrolysis

Advanced Engineering Materials, EarlyView.
Micro‐Raman spectroscopy is applied to characterize corrosion products in a recycled‐based MgO–316L steel composite anode after molten salt electrolysis. A depth‐dependent Fe–O/Fe–Al–O layer sequence of magnetite, hercynite, and an Al‐doped magnetite transition zone is identified.
Felix Drechsler, Serhii Yaroshevskyi, Alexander Adamczyk, Mahnaz Mehdizadehlima, Julia Richter, Cameliu Himcinschi, David Rafaja, Alexandros Charitos, Christos G. Aneziris, Jens Kortus   +9 more
wiley   +1 more source