Results 21 to 30 of about 1,663,813 (295)

Charges and fields in a current-carrying wire

, 2011
Charges and fields in a straight, infinite, cylindrical wire carrying a steady current are determined in the rest frames of ions and electrons, starting from the standard assumption that the net charge per unit length is zero in the lattice frame and ...
Dragan V Redžić, Folman R, French A P, Griffiths D J, Jefimenko O D, Lorrain P, O’Rahilly A, Peregoudov D V, Purcell E M, Redžić D V, Redžić D V, Redžić D V, Redžić D V, Redžić D V, Redžić D V, Redžić D V, Resnick R, Rindler W, Rosser W G V, Shishkin G G, Sommerfeld A, Tolman R C, van Kampen P, van Kampen P   +23 more
core   +1 more source

Evaluating the Efficacy of a Novel Multi-Component Feed Additive for Methane Mitigation and Performance Enhancement in Sheep

Ruminants
Enteric methane emissions from ruminants substantially contribute to global greenhouse gas emissions, necessitating effective mitigation strategies that also support animal productivity. This study assessed the efficacy of a multi-component feed additive
M. Jordana Rivero, Afsal A. Khan, Tersur T. Akpensuen, Paulo Meo-Filho, Simón Pérez-Márquez, Andy Jones   +5 more
doaj   +1 more source

Cosmological constant and gravitational theory on D-brane

, 2003
In a toy model we derive the gravitational equation on a self-gravitating curved D-brane. The effective theory on the brane is drastically changed from the ordinal Einstein equation.
A. Riess, C.L. Bennett, K. Koyama, Kazuya Koyama, L. Anchordoqui, L. Randall, P.J.E. Peebles, S. de Haro, S. Kanno, S. Kanno, S. Nojiri, S. Nojiri, S. Perlmutter, S. Perlmutter, S.B. Giddings, S.S. Gubser, S.W. Hawking, T. Padmanabhan, T. Shiromizu, T. Shiromizu, T. Shiromizu, T. Shiromizu, T. Wiseman, Takashi Torii, Tetsuya Shiromizu   +24 more
core   +1 more source

Effect of Cow Urine Nitrogen Rates and Moisture Conditions on Nitrogen Mineralization in Andisol from Southern Chile

Agronomy, 2022
Urea present in cattle urine contributes large amounts of nitrogen (N) to grazed pastures, which can be the equivalent to approximately 1000 kg N ha−1.
Magdalena Ramírez-Sandoval, Dante Pinochet, M. Jordana Rivero, Laura M. Cardenas   +3 more
doaj   +1 more source

Axially symmetric Yang-Mills-Higgs solutions in AdS spacetime [PDF]

, 2012
We consider axially symmetric solutions of SU(2) Yang-Mills-Higgs theory in globally AdS spacetime and a fixed Schwarzschild-AdS black hole background. The solutions are characterized by two integers $(m,n)$ where $m$ is related to the polar angle and $n$
A. M. Polyakov, A. M. Polyakov, Eugen Radu, J. M. Maldacena, Jutta Kunz, M. Heusler, Olga Kichakova, Y. Shnir, Yasha Shnir   +8 more
core   +1 more source

Design of a 130 MW Axial Turbine Operating with a Supercritical Carbon Dioxide Mixture for the SCARABEUS Project

International Journal of Turbomachinery, Propulsion and Power
Supercritical carbon dioxide (sCO2) can be mixed with dopants such as titanium tetrachloride (TiCl4), hexafluoro-benzene (C6F6), and sulphur dioxide (SO2) to raise the critical temperature of the working fluid, allowing it to condense at ambient ...
Abdelrahman S. Abdeldayem, Salma I. Salah, Omar A. Aqel, Martin T. White, Abdulnaser I. Sayma   +4 more
doaj   +1 more source

Massless scalar free Field in 1+1 dimensions I: Weyl algebras Products and Superselection Sectors [PDF]

, 2009
This is the first of two papers on the superselection sectors of the conformal model in the title, in a time zero formulation. A classification of the sectors of the net of observables as restrictions of solitonic (twisted) and non-solitonic (untwisted ...
Ciolli, Fabio
core   +3 more sources

Net-zero settlement in distribution markets [PDF]

2017 IEEE Power & Energy Society General Meeting, 2017
Accepted to the IEEE Power and Energy General Meeting ...
Sina Parhizi, Alireza Majzoobi, Amin Khodaei   +2 more
openaire   +2 more sources

Trade-offs constrain the success of glyphosate-free farming

Scientific Reports
Glyphosate, the most widely used herbicide, is linked with environmental harm and there is a drive to replace it in agricultural systems. We model the impacts of discontinuing glyphosate use and replacing it with cultural control methods.
H. Metcalfe, J. Storkey, R. Hull, J. M. Bullock, A. Whitmore, R. T. Sharp, A. E. Milne   +6 more
doaj   +1 more source

Simulation dataset of annual crop growth, GHG emission and SOC stock dynamics under current and projected climate conditions for major crops with current and reduced fertiliser inputs in Southwest, England

Data in Brief
For mitigating the unintended environmental impacts associated with intensive farming across the world, it is crucial to understand the complex impacts of potential reductions in fertiliser use on multiple ecosystem services, including crop production ...
Yusheng Zhang, Lianhai Wu, Asma Jebari, Adrian L. Collins   +3 more
doaj   +1 more source