Results 71 to 80 of about 799,907 (311)

Analisis Tingkat Pencemaran Air Sungai Rangkui Kota Pangkalpinang Kepulauan Bangka Belitung Berdasarkan Status Mutu Air

open access: yesJurnal Ilmu Lingkungan
Sungai Rangkui merupakan sungai yang melintasi Kecamatan Tamansari dan Kecamatan Rangkui yang berada di Kota Pangkalpinang, Provinsi Kepulauan Bangka Belitung.
Rizka Azzahra Natasha, Ratih Adharini
doaj   +1 more source

General variational approach to nuclear-quadrupole coupling in rovibrational spectra of polyatomic molecules [PDF]

open access: yes, 2017
A general algorithm for computing the quadrupole-hyperfine effects in the rovibrational spectra of polyatomic molecules is presented for the case of ammonia (NH$_3$).
Andrey Yachmenev   +2 more
core   +1 more source

In‐Situ Growth of 2D MOFs as a Molecular Sieving Layer on SnS2 Nanoflakes for Realizing Ultraselective H2S Detection

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
The ultraselective H2S detection of the ZIF‐L/SnS2 heterostructure is demonstrated. The introduction of 2‐dimensional (2D) breathable ZIF‐L results in a substantial increase in H2S selectivity attributable to the molecular sieving effect, which impedes the permeation of gases with large kinetic diameters and high polarity.
Soo Min Lee   +7 more
wiley   +1 more source

Preliminary Considerations on the Co-Production of Biomethane and Ammonia from Algae and Bacteria

open access: yesInventions
Ammonia is a critical compound for numerous industrial processes; however, the conventional methods for its production present substantial environmental challenges.
Umberto Lucia, Giulia Grisolia
doaj   +1 more source

Palladium Catalysts for Dehydrogenation of Ammonia Borane with Preferential B−H Activation [PDF]

open access: yes, 2010
Cationic Pd(II) complexes catalyzed the dehydrogenation of ammonia borane in the most efficient manner with the release of 2.0 equiv of H_2 in less than 60 s at 25 °C.
Han, Won-Sik   +9 more
core   +2 more sources

In Situ Formation of a Melt‐Solid Interface Toward Stable Oxygen Reduction in Protonic Ceramic Fuel Cells

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
Protonic ceramic fuel cells offer a promising route to generate power efficiently but face critical challenges in achieving industrially viable activity and stability at their cathodes in CO2‐containing air. This report proposes a new cathode material design strategy to enable the cathode to be both catalytically active and CO2 tolerant through the ...
Desheng Feng   +14 more
wiley   +1 more source

Thermal Performance Comparison of Working Fluids for Geothermal Snow Melting with Gravitational Heat Pipe

open access: yesFluids
Snow and ice accumulation on transportation infrastructure presents significant safety and maintenance challenges in cold regions, while conventional removal methods are both energy-intensive and environmentally detrimental. This study proposes a passive
Wenwen Cui   +3 more
doaj   +1 more source

A Reliable Production System of Large Quantities of [13N]Ammonia for Multiple Human Injections [PDF]

open access: gold, 2023
Luis Martínez‐Crespo   +6 more
openalex   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

open access: yesAdvanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana   +2 more
wiley   +1 more source

Hazard Identification of Ammonia FSS for Ammonia Fuelled Ammonia Carrier

open access: yes한국해양공학회지
Ammonia is a zero-carbon fuel that has attracted considerable interest. The compound has high volumetric energy density and is easy to store and transport.
Eunyoung Park   +3 more
doaj   +1 more source

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