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Fluid dynamics analysis and pyrolysis of brewer’s spent grain in a spouted bed reactor

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Particuology 2019年第1期17卷 199-207页

作者： marcos A.S. Barrozo Lidja D.M.S. Borel Taísa S. Lira Carlos H. Ataíde School of Chemical Engineering Federal University of UberlandiaBrazil Department of Engineering and Technologies Federal University of Espirito SantoBrazil

Brewer’s spent grain (BSG) is a large-scale agroindustrial waste that could be more efficiently utilized. This waste is composed of lignocellulosic material and so may serve as a good source of biomass for thermochemical conversion. The present study investigated the fluid dynamics behavior of mixtures of sand and BSG in a spouted bed to assess the viability of the thermochemical conversion of this biomass via fast pyrolysis. Fluid dynamics analyses were performed while varying the mass fraction of BSG (6–80%) and the static bed height (6.6–13.4 cm). Empirical equations for predicting the minimum spouting conditions and the mixing index were obtained using a regression technique, and the selected fluid dynamics parameters were employed in the spouted bed pyrolysis. The bio-oil resulting from this process was rich in phenolic compounds, various nitrogenated compounds (representing precursors for pharmaceuticals) and long-chain hydrocarbons. The products obtained from the analytical and spouted bed pyrolysis processes were also compared.

关键词： Brewer’s spent grain Agroindustrial residue Spouted bed Fast pyrolysis Particle mixing

Increased phosphorus availability to corn resulting from the simultaneous applications of phosphate rock, calcareous rock, and biochar to an acid sandy soil

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Pedosphere 2020年第6期30卷 719-733页

作者： Rogério Borguete Alves RAFAEL Maria Luisa FERNÁNDEZ-marcos Stefania COCCO Maria Letizia RUELLO Flavio FORNASIER Giuseppe CORTI Department of Rural Engineering Faculty of Agronomy and Forestry EngineeringUniversidade Eduardo MondlaneMaputo 257Mozambique Department of Agriculture Food and Environmental SciencesUniversitàPolitecnica delle MarcheAncona 60131Italy Department of Soil Science and Agricultural Chemistry Universidad de Santiago de CompostelaLugo 27002Spain Department of Materials Environmental Sciences and Urban PlanningUniversitàPolitecnica delle MarcheAncona 60131Italy Consiglio per la Ricerca e la Sperimentazione in Agricoltura Centro di Ricerca per lo Studio delle Relazioni tra Pianta e Suolo(C.R.E.A.-R.P.S.)Gorizia 34170Italy Instituto de Biodiversidade Agraria e Desenvolvemento Rural Universidad de Santiago de CompostelaLugo 27002Spain

Phosphorus(P)deficiency is one of the main constraints on crop production in Arenosols(acid sandy soil).The high cost of P fertilizers may represent an insurmountable obstacle in many poor countries,leaving the exploitation of their own calcareous and phosphate rocks as the only low-cost and long-term *** is suggested to have positive effects on soil properties;however,there is no published research on the synergistic effects of biochar and rocky materials in modifying soil *** aim of this study was to investigate the chemical and biochemical responses of an acid Arenosol treated with phosphate rock(PR),calcareous rock(CR),and biochar(BC),and the implications for corn yield.A soil from Marracuene District,Mozambique was used,where corn was grown for 90 d with the soil treated with:no addition(control),water-soluble zinc phosphite fertilizer(WSP),PR,WSP+CR,WSP+BC,WSP+CR+BC,PR+BC,and PR+CR+*** was produced by pyrolysis of babycorn peels for 4 h at 450?C and applied at 11 g *** soil pHH2 Oincreased from about 4.54 in the control to 7.38 in the PR+CR+BC *** oxidizable organic carbon,cation exchange capacity,and available P were higher in the treatments containing BC than in the *** treatments containing CR and/or BC led to the highest activities of alkaline phosphomonoesterase,phosphodiesterase,andα-glucosidase,which increased P availability and gave the greatest biomass and *** suggest that biochar provides additional soluble P and supplies adsorption sites for phosphate,preventing its evolution to unavailable ***,PR applied together with BC contributed to an 840%yield increase compared to the *** treatments containing WSP and BC facilitated phosphite oxidation to phosphate and increased crop yield.

关键词： Arenosols available P enzyme activity phosphite oxidation soil fertility

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marcos Chin作品

高中生之友 2018年第22期 26-27页

作者： marcos Chin 纽约视觉艺术学校

SAR Azimuth Cut-off to Estimate Wind Speed under High Wind Regimes

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Journal of Geodesy and Geoinformation Science 2021年第1期4卷 30-37页

作者： Valeria CORCIONE Ferdinando NUNZIATA marcos PORTABELLA Giuseppe GRIECO Xiaofeng YANG Maurizio MIGLIACCIO Universitàdegli Studi di Napoli Parthenope Dipartimento di IngegneriaNaples 80133Italy The institute of Marine Sciences(ICM-CSIC) Barcelona 08003Spain Koninklijk Nederlands Meterologisch Instituut(KNMI) De Bilt 3731The Netherlands State Key Laboratory of Remote Sensing Science Aerospace Information Research InstituteChinese Academy of SciencesBeijing 100101China

In this study,the azimuth cut-off method,typically used for SAR moderate wind speed estimation purposes,is analyzed under high wind ***,the importance of the pixel spacing,the size of the boxes selected for Synthetic Aperture Radar(SAR)image partitioning and the image texture in terms of homogeneities are discussed by considering their influence on the azimuth cut-off(λc)***,a quality control analysis of the reliability ofλc is carried out by evaluating the distance between the autocorrelation functions(ACF)and their correspondent *** analysis points out the importance of filtering out the unreliable and unfeasibleλc values in order to improve the wind speed *** quality control procedure is based on a x2 test,applied on a large Sentinel-1 A *** soundness of the test is verified by an increment in terms of correlation betweenλc estimations and wind speed *** approach is,then,applied under high wind regimes,i.e.,tropical cyclones.

关键词： SAR wind speed azimuth cut-off significant wave height

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Mass Spectrum in the Minimal Supersymmetric 3-3-1 Model

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Journal of Modern Physics 2011年第10期2卷 1193-1214页

作者： marcos Cardoso Rodriguez 不详

We consider the minimal supersymmetric extension of the 3-3-1 model. We study the mass spectrum of this model in the fermionic and gauge bosons sectors without the antisextet. We also present some phenomenological con... 详细信息

关键词： Supersymmetric Models

Macao and Beijing on the Sly A European’s Impressions of His First Visit to China

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China Today 2013年第5期62卷 72-74页

作者： marcos FERNANDES Portuguese media group MCR’s newsroom

I recently made a trip to *** I only had time to visit three places-Hong Kong, Macao and Beijing-the country made a deep impression on *** one, it was nothing like I expected. I had arrived with a backpack and a good camera, hoping to capture some snapshots of traditional life in Chinese streets. But at the same time I suspected that the old ways had disappeared to make way for grand buildings and other symbols of newfound wealth.

关键词：北京中国印象澳门 OL 欧洲

Lenvatinib as first-line therapy for recurrent hepatocellular carcinoma after liver transplantation:Is the current evidence applicable to these patients?

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World Journal of Transplantation 2020年第11期10卷 297-306页

作者： Federico Piñero marcos Thompson Juan Ignacio Marín Marcelo Silva Hepatology and Liver Transplant Unit Hospital Universitario AustralBuenos Aires B1629HJArgentina Hospital Universitario Austral Facultad de Ciencias BiomédicasUniversidad AustralBuenos Aires B1629HJArgentina Latin American Liver Research Educational and Awareness Network(LALREAN) Buenos Aires B1629HJArgentina Hepatology and Liver Transplantation Unit Hospital Pablo Tobón UribeMedellín 240Colombia

Liver transplantation(LT)is one of the leading curative therapies for hepatocellular carcinoma(HCC).Despite recent optimization of transplant selection criteria,including alpha-feto protein,HCC recurrence after LT is still the leading cause of death in these *** the last decades,effective systemic treatments for HCC,including tyrosine kinase inhibitors and immunotherapy,have been *** describe the clinical scenario of a patient with recurrence of HCC five years after LT,who received lenvatinib as first-line systemic therapy to introduce systemic treatment options in this clinical *** this opinion review,we detail first and second-line systemic treatment options,focusing on those feasible for patients with recurrent HCC after *** trials have evaluated new drugs to treat HCC patients in first and secondline therapy,but patients with recurrent HCC after LT have been excluded from these ***,most of the evidence comes from observational retrospective *** tyrosine kinase inhibitors will remain the primary therapeutic approach in these patients,due to a relative contraindication for immunotherapy,may be clarified in the near future.

关键词： Liver transplantation Recurrence Systemic therapies Hepatocellular carcinoma

The fossil record of birds from the James Ross Basin,West Antarctica

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Advances in Polar Science 2019年第3期30卷 251-273页

作者： Carolina ACOSTA HOSPITALECHE Piotr JADWISZCZAK Julia ACLARKE marcos CENIZO Consejo Nacional de Investigaciones Científicas y Técnicas(CONICET) Godoy CruzArgentina División Paleontología Vertebrados Museo de La PlataFacultad de Ciencias Naturales y MuseoArgentina Institute of Biology University of BialystokBialystokPoland Jackson School of Geosciences The University of TexasAustinTexasUSA División Paleontología Museo de Historia Natural de La PampaSanta RosaLa PampaArgentina Fundación de Historia Natural Félix de Azara Departamento de Ciencias Naturales y AntropologíaCEBBAD–Universidad MaimónidesBuenos AiresArgentina

The fossil record of birds from Antarctica is concentrated in the James Ross Basin,located in north-east of the Antarctic *** are here represented by an extensive Paleogene record of penguins(Sphenisciformes)and Cretaceous–Paleogene record of Anseriformes,followed by other groups with a minor representation(Procellariiformes,Falconiformes,and Pelagornithidae),and others previously assigned controversially to“Ratites”,Threskiornithidae,Charadriiformes,Gruiformes,Phoenicopteriformes,and *** provide a complete update of these records,commenting on the importance of some of these remains for the evolution of the major clades.

关键词： fossil avifauna Cretaceous Paleogene Seymour Island Vega Island

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A message classifier based on multinomial Naive Bayes for online social contexts

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Journal of Management Analytics 2018年第3期5卷 213-229页

作者： Thársis Salathiel de Souza Viana marcos de Oliveira Ticiana Linhares Coelho da Silva Mário Sérgio Rodrigues Falc ao and Enyo JoséTavares Gonçalves Universidade Federal do CearáQuixadáBrazil

Children and teenagers today are increasingly connected to the *** use by minors of social networks applications,and games that are connected to the internet offer the possibility of communication,can make them exposed to various *** of the most troubling threats is sexual *** the objective of this project is to create a model for classifying messages,as normal or dangerous,according to the risk they present to the *** addition to integrating the developed model with a project that analyzes the behavior of minors in a social network(Facebook),and calculates the risk of the minor be a victim of sexual ***,we use the model in the classification of messages obtained from a server of the game Minecraft,quite popular among children.

关键词： messages exchange classification social media children and teenagers protection minecraft clustering messages