Results 31 to 40 of about 43,577,290 (194)

Worldlines on Orbifolds and the Fayet-Iliopoulos Term

, 2004
We adapt ``string-inspired'' worldline techniques to one-loop calculations on orbifolds, in particular on the $S^1/Z_2$ orbifold. Our method also allows for the treatment of brane-localized terms, or bulk-brane couplings.
Arkani-Hamed, Arkani-Hamed, Barbieri, Bern, D’Hoker, F. Brümmer, Hofmann, M. G. Schmidt, Martí, n, Nibbelink, Reuter, Schmidt, Schmidt, Strassler, Z. Tavartkiladze   +15 more
core   +2 more sources

Orthoamide, LXIX [1]. Beiträge zur Synthese N,N,N´,N´,N´´-peralkylierter Guanidine und N,N,N´,N´,N´´䞲,N´´-persubstituierter Guanidiniumsalze / Orthoamides, LXIX [1]. Contributions to the Synthesis of N, N, N´, N´, N´-peralkylated Guanidines and N, N, N´, N´, N´´, N´´-persubstituted Guanidinium Salts

Zeitschrift für Naturforschung B, 2010
N, N, N´, N´-Tetraalkyl-chloroformamidinium chlorides 6 are prepared from N, N, N´, N´-tetraalkylureas 5 and phosgene in acetonitrile. The iminium salts 6 react with primary and secondary amines in the presence of triethylamine to give N, N, N´, N´, N´´-pentasubstituted and N, N, N´, N´, N´´, N´´- hexasubstituted guanidinium salts 7 and 8, respectively,
Willi Kantlehner, Jochen Mezger, Ralf Kreß, Horst Hartmann, Thorsten Moschny, Ioannis Tiritiris, Boyan Iliev, Oliver Scherr, Georg Ziegler, Bahari Souley, Wolfgang Frey, Ivo C. Ivanov, Milen G. Bogdanov, Ulrich Jäger, Günther Dospil, Tillmann Viefhaus   +15 more
openaire   +1 more source

Optimised fertiliser suggestion in smart agriculture system based on fuzzy inference rule

Acta Agriculturae Scandinavica. Section B, Soil and Plant Science, 2021
Rice crop is one of the major cultivating crops in India, especially in south India. Fertiliser plays an important role to achieve the highest rice yield. Each crop needs an adequate amount of fertiliser for its growth.
S. Nithiya, K. Annapurani
doaj   +1 more source

Carbonitriding reduction of TiO2 in the CH4-H2-N2 system: Reduction temperature effect and kinetics [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy
Understanding reaction kinetics can provide valuable information for the design and optimization of a reaction process. In this study, the reduction degree and carbonitriding ratio of TiO2 in the CH4-H2-N2 system were investigated to understand the ...
Zhang R., Fan G.-Q., Hou Y., You Y., Dang J.   +4 more
doaj   +1 more source

EFFECT OF RICE STRAW AND APPLICATIONS OF POTASSIUM SILICATE, POTASSIUM HUMATE AND SEAWEED EXTRACT ON GROWTH AND SOME MACRONUTRIENTS OF SWEET PEPPER PLANTS UNDER IRRIGATION DEFICIT [PDF]

Arab Universities Journal of Agricultural Sciences, 2018
growing seasons of 2013-2014 and 2014-2015, in a private farm at El-Salheya El-Gedida City, Ismailia Governorate, Egypt, to investigate the effect of rice straw (RS) as alternative to sandy soil (SS) and drenching applications of potassium humate (K2-HA)
Nesma Youssif, H. Osman, Y. Salama, Sanaa Zaghlool   +3 more
doaj   +1 more source

Theoretical study of the N N --> N N pi pi reaction

, 1998
We have developed a model for the N N --> N N pi pi reaction and evaluated cross sections for the different charged channels. The low energy part of those channels where the pions can be in an isospin zero state is dominated by N* excitation, driven by ...
Amado, Bar-Nir, Barnett, Benmerrouche, Bernard, Bernard, Bernard, Brunt, Carrasco, Dakhno, E. Hernández, E. Oset, Ferrari, Gasser, Gómez Tejedor, Gómez Tejedor, Gómez Tejedor, Hirenzaki, Jensen, L. Alvarez-Ruso, Lacombe, Machleidt, Mandl, Manley, Meissner, Meissner, Morsch, Olsson, Olsson, Oset, Oset, Oset, Plouin, Prades, Shimizu, Weinberg   +35 more
core   +4 more sources

N,N,N′,N′-Tetramethylethylenediammonium tetrachloridozincate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2013
The asymmetric unit of the title compound, (C6H18N2)[ZnCl4], consists of one tetrachloridozincate anion and two half-N,N,N′N′-tetramethylethylenediammonium cations. Each of the two diammonium cations is located about an inversion center and one of them is disordered over two sets of sites in a 0.780 (17):0.220 (17) ratio.
Muhammad Naseem Akhtar, Mohammed Fettouhi, Maqsood Ahmed, Islam Ullah Khan, Saeed Ahmad   +4 more
openaire   +2 more sources

From Formica® to FormiCAN: One‐Pot Synthesis of Melamine‐based Covalent Adaptable Network Endowed With High Transition Temperature and Fast Stress Relaxation

Macromolecular Rapid Communications, Volume 46, Issue 17, September 5, 2025.
Melamine‐based resins are benchmark materials in the field of laminates and composites, and this beyond the world‐famous Formica® brand, but these thermosets are not reprocessable and hardly degradable. This study describes a melamine‐based CAN containing N,O‐acetal exchangeable functions, obtained via a one‐pot and solvent‐free microwave‐assisted ...
Sidonie Laviéville, Camille Bakkali‐Hassani, Vincent Ladmiral, Eric Leclerc   +3 more
wiley   +1 more source

Fenton process enhanced by metal sulfide for treating the actual evaporated mother liquid of gas field wastewater

Journal of Water Reuse and Desalination, 2023
Evaporated mother liquor of gas field wastewater (EML-GFW) is a form of wastewater generated by the triple-effect evaporation treatment of gas field wastewater containing complex pollutants.
Bing Yao, Ying Chen, Mengzhe Wang, Min Liu   +3 more
doaj   +1 more source

Effectiveness and safety of balloon pulmonary valvuloplasty in newborns and infants [PDF]

Българска кардиология, 2020
Balloon pulmonary valvuloplasty (BPVP) is the procedure of choice for the treatment of isolated pulmonary valve stenosis. Complications and failure of the procedure are more common in newborns and infants.
Kiparisiya Nenova, Anna Kaneva-Nencheva, Elisaveta Levunlieva, Lyubomir Dimitrov, Margarita Tzonzarova   +4 more
doaj   +3 more sources