Results 31 to 40 of about 9,389,724 (153)

One hundred years of teaching, research, and innovation in chemical engineering at the Faculty of Chemistry, National Autonomous University of Mexico (UNAM): Birthplace and enduring leadership of the discipline in Mexico

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
The teaching of chemical engineering in Mexico started in 1925 at the Faculty of Chemistry (FQ) of the National Autonomous University of Mexico (UNAM). Academic institutions, research centres, chemical companies, technological developments, highly trained personnel, and scientific contributions are part of the legacy from FQ‐UNAM.
Patricia Pérez‐Salinas   +4 more
wiley   +1 more source

From sawtooth to profile control: developing feedback control using ECRH/ECCD systems on the TCV tokamak [PDF]

open access: yes, 2009
Real time control of heating systems is essential to maximize plasma performance and avoid or neutralize instabilities under changing plasma conditions. Several feedback control algorithms have been developed on the Tokamak a Configuration Variable (TCV)
Paley, J.I.   +9 more
core   +2 more sources

Suppression of Lolium multiflorum Lam. with Vicia villosa Roth combined with residual herbicides

open access: yesRIA: Revista Investigaciones Agropecuarias, 2022
Lolium multiflorum Lam. (raigrás anual) es una especie de maleza problemática, especialmente en los sistemas de labranza cero en el sur de Buenos Aires (Argentina).
J.P. Renzi   +7 more
doaj  

Eficacia de las medidas preventivas y evaluación del riesgo químico en una empresa avícola

open access: yesRevista Colombiana de Salud Ocupacional, 2014
Objetivo: Elaborar un diagnóstico inicial de exposición a sustancias químicas en una empresa avícola del Valle del Cauca (Colombia) y un análisis de los medios técnicos de control y de vigilancia que tiene la empresa. Metodología: Estudio descriptivo
Francelly Sánchez, Johana Peláez
doaj   +1 more source

Decoupling Formulation and Processing Effects in Thermoplastic Starch Through a Data‐Driven Structure–Property Framework

open access: yesPolymer Engineering &Science, EarlyView.
Processing‐property relationships in thermoplastic starch (TPS): plasticizer type, starch source and melt‐processing temperature establish a hierarchy of effects that governs process‐induced changes and the resulting TPS properties. ABSTRACT Thermoplastic starch (TPS) is a melt‐processable biopolymer whose properties depend strongly on formulation and ...
Cristina Pavón   +3 more
wiley   +1 more source

Influence of Reaction Conditions and Water on the Manufacture of C9 Aromatic Hydrocarbon Resins

open access: yesPolymer Engineering &Science, EarlyView.
Schematic representation of cationic polymerization process for the statistical analysis performed on material properties, showing the correlation plot of Softening point against Yield. ABSTRACT Aromatic hydrocarbons (HRs) find many commercial applications, demanding control of the cationic reaction conditions to achieve specific resin properties.
Jéssica Bentes   +5 more
wiley   +1 more source

Complex multitrophic species interactions and fitness costs: Intricate consequences of jasmonate and salicylate induced plant defences

open access: yesJournal of Animal Ecology, EarlyView.
This study reveals how long‐term activation of jasmonic and salicylic acid signalling reshapes arthropod communities and plant fitness across seasons. By showing that induced defences generate contrasting outcomes and cascading trade‐offs across trophic levels, it challenges the assumption that induced resistance is uniformly beneficial in natural ...
Mônica F. Kersch‐Becker   +6 more
wiley   +1 more source

Evaluación de diferentes tipos de controles de roya (Hemileia vastatrix Berk. & Broome) y pestalotiopsis (Pestalotia sp.), en el cultivo de la fruta milagrosa (Synsepalum dulcificum ADC)

open access: yesSiembra, 2022
En el Ecuador, la tendencia de la producción de frutas no tradicionales se incrementa anualmente en un 4%. La fruta milagrosa (Synsepalum dulcificum) se ha convertido en una excelente opción al momento de incursionar en la explotación de frutas no ...
Dayana Cristina Ibarra Anchundia   +5 more
doaj   +1 more source

CD68 and F4/80 Markers Demonstrate Inflammatory Synergism Between Apical Periodontitis and Liver Fibrosis in Wistar Rats

open access: yesInternational Endodontic Journal, EarlyView.
ABSTRACT Aim To evaluate CD68 and F4/80 glycoproteins in the worsening of apical periodontitis (AP) and liver fibrosis (LF) in Wistar rats. Methodology Thirty‐two Wistar rats were distributed in the following groups (n = 8): C—control; AP—apical periodontitis; LF—liver fibrosis; APLF—AP and LF.
L. V. Barroti   +9 more
wiley   +1 more source

Efectividad de métodos de control de malezas en la producción de forraje del pasto pangola (Digitaria decumbens Stent.)

open access: yesAgronomía Mesoamericana, 2006
Efectividad de métodos de control de malezas en la producción de forraje del pasto Pangola (Digitaria decumbens Stent). En el periodo de agosto de 1998 a agosto de 1999 se condujo un experimento en Emilio Carranza, municipio de Vega de Alatorre, Veracruz,
Valentín Alberto Esqueda-Esquivel   +1 more
doaj   +1 more source

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