Results 121 to 130 of about 74,161 (253)

Nitrification-denitrification in WSP: a mechanism for permanent nitrogen removal in maturation ponds [PDF]

, 2009
A pilot-scale primary maturation pond was spiked with 15N-labelled ammonia (15NH4Cl) and 15N labelled nitrite (Na15NO2), in order to improve current understanding of the dynamics of inorganic nitrogen transformations and removal in WSP systems.
Camargo Valero, M, Curtis, T, Davenport, R, Mara, D, Newton, R, Read L F   +5 more
core  

Equivalent topological invariants of topological insulators

, 2012
A time-reversal invariant topological insulator can be generally defined by the effective topological field theory with a quantized \theta coefficient, which can only take values of 0 or \pi.
Dubrovin B A, Shou-Cheng Zhang, Xiao-Liang Qi, Zhong Wang   +3 more
core   +1 more source

Adaptive optics near-IR imaging of NGC2992 - unveiling core structures related to radio figure-8 loops

, 1999
We present near-IR adaptive optics, VLA radio and HST optical imaging of the nearby Seyfert galaxy NGC2992. Spiral structure and an extension to the West are traced down to the core region at the limiting resolution of our near-IR images.
Alonso-Herrero, Almudena, Chapman, Scott C., Falcke, Heino, Morris, Simon L.   +3 more
core   +3 more sources

Innovation in prediction planning for anterior open bite correction [PDF]

, 2015
This study applies recent advances in 3D virtual imaging for application in the prediction planning of dentofacial deformities. Stereo-photogrammetry has been used to create virtual and physical models, which are creatively combined in planning the ...
Al Anezi, Thamer, Almukhtar, Anas, Almuzian, Mohammed, Ayoub, Ashraf, Benington, Philip, O'Neil, Michael   +5 more
core  

Annual Reports to the ESA Council ESA 110th Annual Meeting July, 2025

The Bulletin of the Ecological Society of America, Volume 107, Issue 2, April 2026.
wiley   +1 more source

Differential adaptability of active ammonia-oxidizing bacteria and archaea to nitrogen amendment and fusarium in monocropped banana soils

BMC Microbiology
This study examines how intensive agricultural management influences ammonia-oxidizing microbial communities (AOB and AOA) in banana monoculture systems, with implications for nitrogen cycling and soil acidification dynamics.
Pingshan Fan, Jawad Ullah, Zhongjun Jia, Yunze Ruan   +3 more
doaj   +1 more source

Combinatorial Calabi flows on surfaces [PDF]

, 2013
For triangulated surfaces, we introduce the combinatorial Calabi flow which is an analogue of smooth Calabi flow. We prove that the solution of combinatorial Calabi flow exists for all time.
Ge, Huabin
core  

AOB - an easily deployable, reconfigurable and multifunctional acoustic-oceanographic system

, 2004
The concept of an easy to use and easy to deploy ocean acoustic tomographic OAT system is presented. The system is composed of a network of buoys and a data inversion online processor. This study concerns the individual node of that network—the acoustic-oceanographic buoy AOB —the data inversion technique and the testing of the system at sea.
Jesus, S. M., Soares, C., Silva, A., Hermand, J.-P., Coelho, E.   +4 more
openaire   +1 more source

The potential of plant-derived triterpenoids as biological nitrification inhibitors. [PDF]

Appl Microbiol Biotechnol
Ribeiro H, Papadopoulou ES, Zhang K, Kanellopoulos AE, Papadopoulou KK, Karpouzas DG.   +5 more
europepmc   +1 more source

Ammonia monooxygenase: a work in progress. [PDF]

Chem Sci
Arndt TC, Laughlin AL, Lancaster KM.
europepmc   +1 more source