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Institution

Polytechnic University of Valencia

EducationValencia, Spain
About: Polytechnic University of Valencia is a education organization based out in Valencia, Spain. It is known for research contribution in the topics: Catalysis & Population. The organization has 16282 authors who have published 40162 publications receiving 850234 citations.


Papers
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Journal ArticleDOI
TL;DR: In this paper, a determination was made on the effects of sample pretreatment on the drying process; samples were immersed in a solution containing NaCl, CaCl 2 and Na 2 S 2 O 5 prior to drying at 70°C.

212 citations

Journal ArticleDOI
TL;DR: In this article, the authors proposed a market model that includes demand-side reserve offers and where energy and reserve are jointly dispatched, and the results suggest that not only do the consumers increase their profits but, in addition, the market power of the generators is reduced.
Abstract: We propose a market model that includes demand-side reserve offers and where energy and reserve are jointly dispatched. Generators and consumers can submit offers and bids on five distinct products-energy, upspinning reserve, downspinning reserve, and two kinds of standby reserve. The resources are scheduled and dispatched in a joint auction through a mixed-integer optimization program. The extra scheduling flexibility introduced by demand-side reserve offers can lead to significant gains in economic efficiency. Thus, the results suggest that not only do the consumers increase their profits but, in addition, the market power of the generators is reduced.

212 citations

Proceedings ArticleDOI
01 Jun 2015
TL;DR: This report summarizes the objectives and evaluation of the SemEval 2015 task on the sentiment analysis of figurative language on Twitter (Task 11), the first sentiment analysis task wholly dedicated to analyzing figurativelanguage on Twitter.
Abstract: This report summarizes the objectives and evaluation of the SemEval 2015 task on the sentiment analysis of figurative language on Twitter (Task 11). This is the first sentiment analysis task wholly dedicated to analyzing figurative language on Twitter. Specifically, three broad classes of figurative language are considered: irony, sarcasm and metaphor. Gold standard sets of 8000 training tweets and 4000 test tweets were annotated using workers on the crowdsourcing platform CrowdFlower. Participating systems were required to provide a fine-grained sentiment score on an 11-point scale (-5 to +5, including 0 for neutral intent) for each tweet, and systems were evaluated against the gold standard using both a Cosinesimilarity and a Mean-Squared-Error measure.

212 citations

Journal ArticleDOI
TL;DR: In this paper, the authors carried out the synthesis of ITQ-7 in the presence of Ge and found that the incorporation of Ge reduced the crystallization time from 7 days to less than 12 hours.
Abstract: ITQ-7 is a tri-dimensional twelve-membered ring zeolite which presents double four-membered ring units (D4MR) in its structure. On the basis of theoretical ab initio calculations, which indicate that isomorphic substitution of Ge for Si atoms in the double four-membered ring units stabilizes such small cages, we have carried out the synthesis of ITQ-7 in the presence of Ge. It is found that the incorporation of Ge reduces the crystallization time from 7 days to less than 12 h, while a detailed analysis of the 19F and 29Si MAS NMR leads to the conclusion that Ge selectively occupies positions at the D4MR. An hypothesis has been introduced which assumes that the increase in the crystallization rate is due to the preferential occupancy of D4MR sites by Ge, and this allows relaxation of the constrained T−O−T bonds of these small D4MR cages.

211 citations

Journal ArticleDOI
06 Mar 2009-Science
TL;DR: The results suggest that the emergence of replication fidelity was critical for the evolution of complexity in the early history of life, and the highest mutation rate reported for any biological entity is suggested.
Abstract: The mutation rates of viroids, plant pathogens with minimal non-protein-coding RNA genomes, are unknown. Their replication is mediated by host RNA polymerases and, in some cases, by hammerhead ribozymes, small self-cleaving motifs embedded in the viroid. By using the principle that the population frequency of nonviable genotypes equals the mutation rate, we screened for changes that inactivated the hammerheads of Chrysanthemum chlorotic mottle viroid. We obtained a mutation rate of 1/400 per site, the highest reported for any biological entity. Such error-prone replication can only be tolerated by extremely simple genomes such as those of viroids and, presumably, the primitive replicons of the RNA world. Our results suggest that the emergence of replication fidelity was critical for the evolution of complexity in the early history of life.

211 citations


Authors

Showing all 16503 results

NameH-indexPapersCitations
Avelino Corma134104989095
Bruce D. Hammock111140957401
Geoffrey A. Ozin10881147504
Wolfgang J. Parak10246943307
Hermenegildo García9779246585
María Vallet-Regí9571141641
Albert Ferrando8741936793
Rajendra Prasad8694529526
J.J. Garcia-Luna-Aceves8660225151
George W. Huber8428037964
Juan J. Calvete8145822646
Juan M. Feliu8054423147
Amparo Chiralt7829818378
Michael Tsapatsis7737520051
Josep Redon7748881395
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20241
2023130
2022331
20212,655
20202,861
20192,762