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| 1 | Microwave Synthesis of Large Few-Layer Graphene Sheets in Aqueous Solution of Ammonia显示文摘Few-layer graphene (FLG) sheets with sizes exceeding several micrometers have been synthesized by exfoliation of expanded graphite in aqueous solution of ammonia under microwave irradiation, with an overall yield approaching 8 wt.%. Transmission electron microscopy (in bright-field and dark-field modes) together with electron diffraction patterns and atomic force microscopy confirmed that this graphene material consisted mostly of mono-, bi- or few-layer graphene (less than ten layers). The high degree of surface reduction was confirmed by X-ray photoelectron and infrared spectroscopies. In addition, the high stability of the FLG in the liquid medium facilitates the deposition of the graphene material onto several substrates via low-cost solution-phase processing techniques, opening the way to subsequent applications of the material. | Izabela Janowska Kambiz Chizari Ovidiu Ersen Spyridon Zafeiratos Driss Soubane Victor Da Costa Virginie Speisser Christine Boeglin Matthieu Houllé Dominique Bégin Dominique Plee Marc-Jacques Ledoux Cuong Pham-Huu | 2010 | Nano Research2010，3，2： | 22 |
| 2 | Galvanic and asymmetry effects on the local electrochemical behavior of the 2098-T351 alloy welded by friction stir welding显示文摘Scanning electrochemical microscopy(SECM)and scanning vibrating electrode technique(SVET)were used to investigate the electrochemical behaviour of the top surface of the 2098-T351 alloy welded by friction stir welding(FSW).The SVET technique was efficient in identifying the cathodic and anodic weld regions.The welding joint(WJ),which comprises the thermomechanically affected zone(TMAZ)and the stir zone(SZ),was cathodic relative to the heated affected zone(HAZ)and the base metal(BM).The reactivities of the welding joint at the advancing side(AS)and the retreating side(RS)were analyzed and compared using SECM technique in the competition mode by monitoring the dissolved oxygen as a redox mediator in 0.005 mol L^-1 NaCl solution.The RS was more electrochemically active than the AS,and these results were correlated with the microstructural features of the welded alloy. | Mariana X.Milagre Uyime Donatus Naga V.Mogili Rejane Maria PSilva Barbara Victoria Gde Viveiros Victor F.Pereira Renato A.Antunes Caruline S.CMachado Joao Victor S.Araujo Isolda Costa | 2020 | Journal of Materials Science & Technology2020，42，10： | 2 |
| 3 | Energetic-protein supplementation in the last 60 days of gestation improves performance of beef cows grazing tropical pastures显示文摘Background: Nutrition is one of the most important factors that affect animal performance, and it therefore also impacts on financial results in beef systems. In this way, finding the best strategy for feeding supplements is of paramount importance. Aiming to evaluate the effect of supplement feeding strategies for beef cows in the last third of gestation, two experiments were conducted. In Experiment 1, 35 pregnant Nellore cows were assigned to a completely randomized design with four treatments: control, which received no supplement; supplementation for the last 30 d of gestation(30-d; 3.0 kg/d); supplementation for the last 60 d of gestation(60-d; 1.5 kg/d); or supplementation for the last 90 d of gestation(90-d; 1.0 kg/d). All supplemented treatments received the same total amount of supplement throughout the experiment: 90 kg(20% of crude protein). A second experiment(Experiment 2) was delineated to evaluate the effects of the amounts offered in Experiment 1 on intake and metabolism. Four multiparous pregnant Nellore cows were assigned to a 4 × 4 Latin square design, with periods of15 d each.Results: There was a linear effect of the number of days of supplementation on calving body weight(BW; P < 0.05)and a quadratic effect on BW change from parturition to d 31 post-calving(P < 0.05), with cows on the 60-d strategy losing less BW post-calving. No difference was found in offspring birth BW(P > 0.10). A significant linear effect on interval from parturition to conception(P < 0.05) was observed, with the highest calving to conception interval being observed in the 90-d strategy. The level of supplementation did not affect forage intake or neutral detergent fiber digestibility(P > 0.10). Nitrogen excreted through urine tended to increase linearly with the level of supplementation(P < 0.10).Conclusion: Providing 1.5 kg of supplement during the last 60 d of gestation improves cow performance after calving, reducing the magnitude of BW lost, and reduces the number of days from calving to re-conception in the following breeding season compared to the usually recommended period of supplementation of 90 d pre-partum. | Aline Gomes da Silva Mário Fonseca Paulino Edenio Detmann Henrique Jorge Fernandes Lincoln da Silva Amorim Román Enrique Maza Ortega Victor Valério de Carvalho Josilaine Aparecida da Costa Lima Felipe Henrique de Moura Mariana Benevides Monteiro Jéssika Almeida Bitencourt | 2018 | Journal of Animal Science and Biotechnology2018，9，1： | 2 |
| 4 | Clinical and Economic Impact of Diabetes Mellitus on Percutaneous and Surgical Treatment of Multivessel Coronary Disease Patients: Insights From the Arterial Revascularization Therapy Study (ARTS) Trial显示文摘 | Alexandre Abizaid Marco A. Costa Marinella Centemero Andrea S. Abizaid Victor M.G. Legrand Robert V. Limet Gerhard Schuler Friedrich W. Mohr Wietze Lindeboom Amanda G.M.R. Sousa J. Eduardo Sousa Ben van Hout Paul G. Hugenholtz Felix Unger Patrick W. Serru | 2001 | Circulation: Journal of the American Heart Association2001，，5： | 1 |
| 5 | Analysis of alternative parameters of dynamic resistance measurement in high voltage circuit breakers显示文摘Throughout its lifetime,high-voltage circuit breaker(HVCB)contacts suffer from inevitable degradation processes,especially during the formation of electric arcs.Highly degraded contacts can reduce the current interruption capacity and increase the chances of operational faults,which might lead to considerable financial losses.Therefore,the use of efficient evaluating techniques is a key factor to achieve systems reliability.The dynamic resistance measurement(DRM)is a technique that can be used to evaluate the degradation level of HVCB'contacts.It stands out from the usual technique,static resistance measurement,by allowing the assessment of both the main contacts and the arcing contacts(ACs).Usually,the mean resistance or the area under the DRM curve is used to estimate the AC degradation.However,DRM is a non-standardised technique and there are no specified parameters to evaluate the real wear conditions.Therefore,an analysis of alternative parameters extractible from the DRM technique is presented in this study,such as amplitude and variance of the DRM curve.The results attest the possible use of more than one parameter for the continuous evaluation of HVCB ACs,characterising the DRM as a more complete and precise diagnosis tool. | Herbet Filipe dos Santos Sousa Adriano Costa de Oliveira George Victor Rocha Xavier Henrique Nunes de Santana Edson Guedes da Costa Tarso Vilela Ferreira | 2019 | High Voltage2019，4，3： | 1 |
| 6 | Phase transformations evaluation on a UNS S31803 duplex stainless steel based on nondestructive testing 显示文摘 | Edgard de Maeedo Silva Victor Hugo Costa de Albuquerque Josinaldo Pereira Leite | 2009 | Materials Science and Engineering A2009，516，： | 1 |
| 7 | Waterborne polyurethane dispersions obtained with poly- carbonate of hexanediol intended for use as coatings显示文摘 | Vanesa Garcia Pacios Victor Costa Manuel Colera | 2011 | Progress in Organic Coatings2011，71，2： | 1 |
| 8 | Waterborne polyurethane dispersions obtaíned with polycarbonate of hexanediol intended for tse as coatings显示文摘 | Vanesa Garcia Victor Costa Manuel Colera | | 0，，71： | 1 |
| 9 | Nanofluidic Digital PCR for KRAS Mutation Detection and Quantification in Gastrointestinal Cancer显示文摘 | Daniel Azuara Mireia M. Ginesta Mireia Gausachs Francisco Rodriguez-Moranta Joan Fabregat Juli Busquets Nuria Pelaez Jaume Boadas Sara Galter Victor Moreno Jose Costa Javier de Oca Gabriel Capellá | 2012 | Clinical Chemistry2012，，： | 1 |
| 10 | Affect of polydispersity on the properties of waterborne polyurethane dispersions based on polycarbonate polyol显示文摘 | Vanesa Garcia Victor Costa Manuel Colera | | 0，，： | 1 |
| 11 | Therapeutic action of physical exercise on markers of oxidative stress induced by chronic kidney disease显示文摘 | Priscila Soares de Souza Luis Gustavo Costa da Rocha Camila Baumer Tromm Débora Luz Scheffer Eduardo Ghisi Victor Paulo Cesar Lock da Silveira Claudio Teodoro de Souza Luciano Acordi Silva Ricardo Aurino Pinho | 2012 | 2012 (3-4)2012，，3： | 1 |
| 12 | Nanoencapsulation of bovine lactoferrin for food and biopharmaceutical applications显示文摘 | Victor M. Balc?o Carla I. Costa Carla M. Matos Carla G. Moutinho Manuela Amorim Manuela E. Pintado Ana P. Gomes Marta M. Vila José A. Teixeira | 2013 | Food Hydrocolloids2013，，2： | 1 |
| 13 | Mechanisms underlying hypertriglyceridemia in rats with monosodium l -glutamate-induced obesity: Evidence of XBP-1/PDI/MTP axis activation显示文摘 | Lucas Martins Fran?a Larissa Nara Costa Freitas Vinicyus Teles Chagas Caio Fernando Ferreira Coêlho Wermerson Assun??o Barroso Graciomar Concei??o Costa Lucilene Amorim Silva Victor Debbas Francisco Rafael Martins Laurindo Antonio Marcus de Andrade Paes | 2013 | Biochemical and Biophysical Research Communications2013，，： | 1 |
| 14 | VLSI Controller for Active Matrix LCDs显示文摘 | Lee David D Da Costa Victor M Lewis Alan G | 1994 | Digest of Technical Papers-IEEE International Solid-state Circuits Conference1994，，： | 1 |
| 15 | Prioritization of bridges and tunnels in earthquake risk mitigation using multi -criteria decision analysis : Application to Lisbon 显示文摘 | Carlos A Bana e Costa Carlos S Oliveira Victor Vieira | 2008 | Omega2008，36，3： | 1 |
| 16 | Efficient removal of Cd2 from aqueous solutions using by-product of biodiesel Production显示文摘 | Rita F L Ribeiro Victor C Soares Leticia M Costa | 2012 | J Journal of Hazardous Materials2012，，237238： | 1 |
| 17 | Waterborne polyurethane dispersions obtained with polycar- bonate of hexanediol intended for use as coatings 显示文摘 | VANESA GARCIA - PACIOS VICTOR COSTA | 2011 | Pro- gress in Organic Coatings2011，71，2： | 1 |
| 18 | Assessment of postcombustion carbon capture technologies for power generation显示文摘A significant proportion of power generation stems from coal-combustion processes and accordingly represents one of the largest point sources of CO_(2)emissions worldwide.Coal power plants are major assets with large infrastructure and engineering units and an operating life span of up to 50 years.Hence,any process design modification to reduce greenhouse gas emissions may require significant investment.One of the best options to utilize existing infrastructure is to retrofit the power station fleet by adding a separation process to the flue gas,a practice known as postcombustion capture(PCC).This review examines the recent PCC development and provides a summary and assessment of the state of play in this area and its potential applicability to the power generation industry.The major players including the various institutes,government,and industry consortia are identified along with flue gas PCC demonstration scale plants.Of the PCC technologies reviewed,amine-based absorption is preeminent,being both the most mature and able to be adapted immediately,to the appropriate scale,for power station flue gas with minimal technical risk.Indeed,current commercial applications serve niches in the merchant CO_(2)market,while a substantial number of smaller scale test facilities are reported in the literature with actual CO_(2)capture motivated demonstrations now commencing.Hybrid membrane/absorption systems,also known as membrane contactors,offer the potential for the lowest energy requirements,possibly 10%of current direct scrubbers but are at an early stage of development.Other methods being actively pursued as R&D projects include solid absorbents,solid adsorbents,gas membrane separators,and cryogenic separation.The variety and different maturities of these competing technologies make technical comparison largely subjective,but useful insights could be gained through the development and application of econometric techniques such as‘real options’within this context.Despite these limitations,it is clear from this review that amine scrubbing is likely to be adapted first into the existing power station fleet,while less mature technologies will grow and become integrated with the development of future power stations. | Mikel C.DUKE Bradley LADEWIG Simon SMART Victor RUDOLPH João C.Diniz da COSTA | 2010 | Frontiers of Chemical Science and Engineering2010，4，2： | 0 |
| 19 | Prospective application of a bleeding and ischemic risks-adjusted antithrombotic protocol in elderly patients revascularized with everolimus-eluting stents:EPIC05-Sierra75 study显示文摘OBJECTIVES Elderly patients show a higher incidence of ischemic and bleeding events after percutaneous transluminal coron-ary intervention(PCI).We sought to investigate outcomes in elderly patients treated with antithrombotic strategy guided by bleeding and ischemic risks after revascularization with last generation everolimus-eluting stent(EES).METHODS Prospective multicenter registry including patients over 75 years revascularized with EES and antithrombotic ther-apy guided by clinical presentation,PCI complexity and PRECISE DAPT score.Co-primary safety endpoints were:(1)composite of cardiac death,myocardial infarction and stent thrombosis and;(2)bleeding(BARC 2-5).Primary efficacy endpoint was target lesion revascularization.A matched group of patients revascularized with current drug-eluting stents and no such tailored antith-rombotic therapy was used as control.RESULTS Finally,1064 patients were included in SIERRA-75 cohort,80.8±4.2 years,36.6%women,71%acute coronary syn-dromes(ACS)and 53.6%complex PCI.Co-primary safety endpoint of major adverse cardiovascular events was met in 6.2%,co-primary safety endpoint of bleeding in 7.8%and primary efficacy endpoint of TKLR in 1.5%.The multivariable adjusted model showed no significant association of the prescribed short/long dual antiplatelet therapy(DAPT)durations with any endpoint suggesting a well tailored therapy.No stent thrombosis reported in the subgroup with 1-3 months DAPT duration.As compared to control group,bleeding BARC 2-5 was significantly lower in SIERRA-75 group(7.4%vs.10.2%,P=0.04)as well as the net safety-efficacy endpoint(14.3%vs.18.5%,P=0.02).CONCLUSIONS In elderly population,the application of this risks-adjusted antithrombotic protocol after revascularization with last generation EES seems to be associated with an improved prognosis in terms of ischemic and bleeding outcomes. | Jose M de la Torre Hernandez Ramon Lopez Palop Jesus M Jimenez Mazuecos Pilar Carrillo Sáez Alejandro Gutierez-Barrios Eduardo Pinar Belen Cid Luis Fernandez Tamara Garcia Camarero Cristóbal Urbano-Carrillo Juan F Oteo Dominguez Victor A Jimenez Diaz Antonio EGomez Menchero Eladio Galindo Fernández Juan GCórdoba Soriano Raymundo Ocaranza Eduardo ArroyoÚcar Koldobika Garcia San Roman Silvio Leal Ginés Martínez Cáceres Jose A Linares Vicente Georgina Fuertes Ferre Xavier Carrillo Juan CRama Merchán Catia Costa Juan Sanchis Renato Fernandes Alberto Rodrigues Jose M Vegas Valle Hélder Pereira Armando Perez de Prado | 2022 | Journal of Geriatric Cardiology2022，19，5： | 0 |
| 20 | A novel supplement with yeast b-glucan, prebiotic, minerals and Silybum marianum synergistically modulates metabolic and inflammatory pathways and improves steatosis in obese mice显示文摘Objective: To evaluate the synergic effects of a novel oral supplement formulation, containing prebiotics,yeast b-glucans, minerals and silymarin(Silybum marianum), on lipid and glycidic metabolism, inflammatory and mitochondrial proteins of the liver, in control and high-fat diet-induced obese mice.Methods: After an acclimation period, 32 male C57 BL/6 mice were divided into the following groups:nonfat diet(NFD) vehicle, NFD supplemented, high-fat diet(HFD) vehicle and HFD supplemented. The vehicle and experimental formulation were administered orally by gavage once a day during the last four weeks of the diet(28 consecutive days). We then evaluated energy homeostasis, inflammation, and mitochondrial protein expression in these groups of mice.Results: After four weeks of supplementation, study groups experienced reduced glycemia, dyslipidemia,fat, and hepatic fibrosis levels. Additionally, proliferator-activated receptor-α, AMP-activated protein kinase-1α, peroxisome proliferator-activated receptor γ co-activator-1α, and mitochondrial transcription factor A expression levels were augmented;however, levels of inhibitor of nuclear factor-κB kinase subunit a and p65 nuclear factor-κB expression, and oxidative markers were reduced. Notably, the cortisol/C-reactive protein ratio, a well-characterized marker of the hypothalamic–pituitary–adrenal axis immune interface status, was found to be modulated by the supplement.Conclusion: We discovered that the novel supplement was able to modify different antioxidant, metabolic and inflammatory pathways, improving the energy homeostasis and inflammatory status, and consequently alleviated hepatic steatosis. | Victor Abou Nehmi Gilson Masahiro Murata Ruan Carlos Macêdo de Moraes Gabriely Cristina AlvesLima Danielle Araujo De Miranda Katrin Radloff Raquel Galvao Figuerêdo Costa Joyce de Cassia Rosade Jesus Jéssica Alves De Freitas Nayara Izabel Viana Ruan Pimenta Katia Ramos Moreira Leite JoséPinhata Otoch Ana Flávia Marcal Pessoa | 2021 | Journal of Integrative Medicine2021，19，5： | 0 |
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