Results 41 to 50 of about 92,626 (194)

Estudio computacional de RMN del acetaminofén y sus precursores químicos

infoANALITÍCA, 2018
En este artículo, se presenta un estudio espectroscópico computacional de Resonancia Magnética Nuclear del acetaminofén y sus principales precursores químicos: el 4-nitrofenol y el 4-aminofenol.
Sebastian Cuesta, Shirley Morocho, Lorena Meneses   +2 more
doaj   +1 more source

Nutritional Potential, Phytochemical Content, In Vivo Antioxidant, and Antanemic Potential of Musa paradisiaca Flower

Food Chemistry International, EarlyView.
After collecting Musa paradisiaca leaves, some were dried and others were used to produce aqueous extracts. The extracts and powders were characterized and then administered to rats made anaemic by PHZ. After 14 days of administration of the two samples, the rats were euthanized and it was observed that after 9 days of treatment, the aqueous extract ...
Josée Rebeca Nombo, Jethro Roland Misse Ngangue Ekwala, Somon Régine Tuem, Stéphano Tene Tambo, Merlin Ngafon Nchoutpouen, Valery Jean François Nsoga, Jules Christophe Koule Manz, Jordan Mekui Nwotue, Mathieu Ndomou   +8 more
wiley   +1 more source

Minimum power multicasting with delay bound constraints in Ad Hoc wireless networks [PDF]

, 2005
In this paper, we design a new heuristic for an important extension of the minimum power multicasting problem in ad hoc wireless networks. Assuming that each transmission takes a fixed amount of time, we impose constraints on the number of hops allowed ...
Bulbul, Kerem, Bülbül, Kerem, Ercetin, Ozgur, Erçetin, Özgür, Kilic, Kemal, Kılıç, Kemal, Kundakcioglu, Erhun Omer, Kundakcıoğlu, Erhun Ömer, Unluyurt, Tonguc, Ünlüyurt, Tonguç   +9 more
core   +1 more source

Remoción de sales de cobre por sodalitas recubiertas con hidróxidos doble laminares

Tecnología y ciencias del agua
Se sintetizaron zeolitas tipo sodalita a partir de silicio y aluminio posconsumo, las cuales se recubrieron con el hidróxido doble laminar (HDL) con una relación molar Mg2+ / Al3+ = 2, que se formaron por el método de coprecipitación a baja saturación ...
Andrea P. Aparicio, José H. Quintana-Mendoza, J. A. Henao   +2 more
doaj   +1 more source

BRST Analysis of Physical Fields and States for 4D Quantum Gravity on R x S^3

, 2012
We consider the background-free quantum gravity based on conformal gravity with the Riegert-Wess-Zumino action, which is formulated in terms of a conformal field theory. Employing the $R \times S^3$ background in practice, we construct the nilpotent BRST
D. Varshalovich, Ken-ji Hamada
core   +1 more source

Ocean acidification at the crossroads I: Harmonizing unpurified and purified meta‐cresol purple spectrophotometric pHT measurements based on absorbance data

Limnology and Oceanography: Methods, EarlyView.
Abstract Consistent monitoring of seawater spectrophotometric pH on the total hydrogen ion scale (pHT) has been questioned by an evolving method, with changes in parameterization and the purity of the meta‐cresol purple (mCP). Using real seawater samples, we demonstrate that spectrophotometric pHT measurements obtained with unpurified (UNPUR) and ...
Marta Álvarez, Maribel I. García‐Ibáñez, Rubén Acerbi, Rocío Santiago‐Domenech, Elisa F. Guallart, Noelia M. Fajar, Lisandro Arbilla   +6 more
wiley   +1 more source

MODELADO DE PREDICCIÓN DE LA EFECTIVIDAD DE TRATAMIENTOS QUÍMICOS PARA REMOCIÓN DE ORGÁNICOS, MEDIANTE RMN1H Y QUIMIOMETRÍA

Revista Fuentes El Reventón Energético, 2013
Uno de los problemas más comunes presentados en la producción de petróleo a nivel mundial son los depósitos parafínicos, los cuales se producen por cambios en las condiciones termodinámicas originales del crudo.
Edison Odilio García Navas, Daniel Molina Velasco, Emiliano Ariza León, Fernando Enrique Calvete González, Mario Quintero González   +4 more
doaj  

Influence of Dzyaloshinskii-Moriya interactions on magnetic structure of a spin-1/2 deformed kagome lattice antiferromagnet

, 2012
Motivated by the recent neutron scattering experiment on Rb2Cu3SnF12 [Nat. Phys. 6, 865 (2010)], we investigate the effect of Dzyaloshinskii-Moriya interactions in a theoretical model for the magnetic structure of this material.
G. Misguich, J. P. Blaizot, Kwon Park, Kyusung Hwang, Yong Baek Kim   +4 more
core   +1 more source

Physico‐Chemical Understanding of Plasticizers Interaction with P(VDF‐TrFE‐CFE) Electroactive Polymer

Macromolecular Materials and Engineering, EarlyView.
This study explores the effects of DNOP plasticizer on P(VDF‐TrFE‐CFE) terpolymers, revealing a strong synergy between chemical structure and physical properties. High TrFE bringing natural flexibility and CFE enhancing the plasticizer retention through theorized halogen bonds, ultra‐soft, crack‐free films of high permittivity and softness are ...
Colin Lesenne, David Audigier, Jean‐Fabien Capsal   +2 more
wiley   +1 more source

The dynamics of a class of quasi-periodic Schr\"odinger cocycles [PDF]

, 2013
Let $f:\mathbb{T}\to\mathbb{R}$ be a Morse function of class $C^2$ with exactly two critical points, let $\omega\in\mathbb{T}$ be Diophantine, and let $\lambda>0$ be sufficiently large (depending on $f$ and $\omega$). For any value of the parameter $E\in
Bjerklöv, Kristian
core