Results 71 to 80 of about 2,725 (185)

Substrate‐driven enrichment and eDNA metabarcoding reveal indigenous microbiomes in mangrove sediments with potential for ammonia and nitrite transformation

Journal of the World Aquaculture Society, Volume 57, Issue 4, August 2026.
Abstract Effective management of ammonia and nitrite remains a major challenge in intensive shrimp aquaculture, where excessive nitrogen loading compromises water quality and animal health. Indigenous microbial communities inhabiting mangrove sediments are widely considered potential sources of ammonia‐ and nitrite‐transforming microorganisms; however,
Muhamad Amin, Hussein Taha, Norhayati Ahmad, Ledhyane Ika Harlyan, Agustina Agustina, Ren Fitriadi, Supono Supono, Takaomi Arai   +7 more
wiley   +1 more source

Mineralogy, mineral chemistry, and redox equilibria in ten aggregate particles from asteroid Bennu

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1905-1927, August 2026.
Abstract Examination of 10 Bennu aggregate particles has revealed the presence of many phases which taken together can provide constraints on the oxygen fugacity (fO2) of Bennu samples. Phyllosilicates (saponite and serpentine), carbonates, oxides (magnetite, chromite), sulfides (pyrrhotite, pentlandite), phosphate (hydroxyapatite, Na‐Mg‐phosphate ...
K. Righter, J. Gorce, L. Le, K. Thomas‐Keprta, Z.E. Wilbur, L.P. Keller, Z. Gainsforth, T.J. McCoy, T.J. Zega, S.S. Russell, H.C. Connolly Jr., D.S. Lauretta   +11 more
wiley   +1 more source

An Efficient Uplink 3D AoA Positioning Framework for 5G RedCap UEs in Indoor Factory Environments

Sensors
This paper addresses the challenge of Reduced Capability (RedCap) User Equipment (UE) positioning within indoor 5G networks. While conventional approaches rely on time-domain ranging, the limited signal bandwidth associated with RedCap devices ...
Ilya Averin, Andrey Pudeev, Seunggye Hwang, Hyunsoo Ko   +3 more
doaj   +1 more source

Origin and formation of a chondritic xenolith in Krymka (LL3.2, breccia): Indications for a late formation of the accretionary breccia

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 2016-2047, August 2026.
Abstract An unusual chondritic xenolith was found in two sequentially prepared thin sections of a sample from the Krymka (LL3.2) chondrite. The xenolith has a rounded, slightly deformed shape of about 5 mm in apparent diameter and is partially surrounded by a double rim made of an inner fine‐grained silicate‐rich rim and an outer sulfide‐rich rim.
Aelita Girich, Addi Bischoff, Samuel Ebert, Kazuhide Nagashima, Andreas Morlok, Harald Hiesinger, Jasper Berndt   +6 more
wiley   +1 more source

Enhanced Orbital‐Forcing Sensitivity of Northern High Latitude Temperatures in the Late Cretaceous Relative to Modern Geography

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Orbital forcing is a primary driver of paleoclimate change, but its influence on deep time climates, particularly in the polar regions of the Late Cretaceous, is poorly understood. Here, we conduct climate simulations with an atmosphere‐ocean‐vegetation coupled model, MIROC4mV, to investigate the response of northern high latitude temperature ...
Taro Higuchi, Ayako Abe‐Ouchi, Wing‐Le Chan, Ryouta O'ishi   +3 more
wiley   +1 more source

NEW TRENDS FOR ANGLE OF ARRIVAL ESTIMATION

Journal of Engineering and Sustainable Development, 2018
The Angle Of Arrival (AOA) estimation of radio signal gained high attention, and effort in the last 20 years, since it is a very important tool for security purposes and for military operations, it is considered as an essential part of Electronic ...
Bassim Sayed Mohammed, Hadeer Hussein Ali   +1 more
doaj  

Two-Stage High-Resolution AoA Estimation With Rainbow Beams

IEEE Access
The combination of orthogonal frequency-division multiplexing (OFDM) and a true-time-delay (TTD) array gives rise to subcarrier-dependent beams, referred to as rainbow beams. When a sufficient number of subcarriers is available, these beams can cover the
Kitae Kang, Yeo-Sun Yoon, Kyoungtae Park
doaj   +1 more source

Three‐Fourths of Carbon Emissions From 2023 Record‐Breaking Wildfires in Canada Traced to Soil and Peat Combustion

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract In 2023, wildfires burned vast areas in Canada, emitting large amounts of carbon (C). The area burned by the 2023 wildfires is the largest ever recorded in Canada, but the partitioning of C emissions between aboveground biomass and soil sources remains unknown.
Z. Zhong, C. Ottah, B. M. Rogers, S. Veraverbeke, S. Potter, W. A. Kurz, L. R. Diaz, S. Christensen, A. Gonsamo   +8 more
wiley   +1 more source

An AOA Estimation Algorithm for 5G Positioning Technology

Academic Journal of Science and Technology
Among the many positioning technologies, AOA (Angle of Arrival), as one of the most basic wireless positioning technologies, can be fused with other positioning technologies to achieve higher positioning accuracy. In this paper, the principle and implementation process of the MUSIC algorithm are studied according to the application requirements of AOA ...
Zhifei Luo, Jun Dai, Xuelin Han
openaire   +1 more source

Coarse-to-Fine Partitioning Algorithm for Angle-of-Arrival Estimation in Visible Light Positioning Using Liquid Crystal Display

IEEE Photonics Journal
Coarse-to-fine partitioning (CFP) algorithm is proposed for angle-of-arrival (AoA) estimation with a controllable liquid crystal display (LCD) in front of a photodetector (PD). By electrically switching each pixel of the LCD in transparent or opaque, the
Ryunosuke Fukuda, Koji Kamakura, Masayuki Kinoshita, Takaya Yamazato   +3 more
doaj   +1 more source