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Impacts of land use and land cover changes on hydrological processes and sediment yield determined using the sWAT model

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International Journal of sediment Research 2022年第1期37卷 54-69页

作者： Edivaldo Afonso de Oliveira serr?o Madson Tavares silva thomás.rocha ferreira Lorena Concei??o Paiva de Ataide Cleber Assis dos santos Aline Maria Meiguins de Lima Vicente de Paulo Rodrigues da silva Francisco de Assis salviano de sousa Denis José Cardoso Gomes Academic Unit of Atmospheric sciences Federal University of Campina Grande Department of Physics Center for Natural and Exact Sciences Federal University of Santa Maria Institute of Technology Civil Engineering Graduate Program Federal University of Pará Earth system science Center National Institute of Space Research Institute of Geosciences Federal University of Pará

Land use and land cover (LULC) changes strongly affect local hydrology and sediment *** current study focused on a basin in the Brazilian Amazon and had the following three objectives:(1) to perform an effective diagnosis of flow and sediment yield,(2) to evaluate the impacts of LULC changes over the last 40 years on the hydro-sedimentological variables,and (3) to investigate the impacts of the possible trends or breaking points in the flow,surface runoff,and sediment yield *** soil and Water Assessment Tool (sWAT) model validation showed that the simulated results were consistent with the data measured in the dynamic reproduction of flow ***,changes in LULC altered surface runoff,sediment yield,and flow according to the Mann-Kendall and Pettitt non-parametric *** was also observed that the sub-basins in which pastureland is predominant are more susceptible to increased surface runoff and sediment *** to trend and homogeneity tests,these sub-basins had break points in the time series of these *** the other hand,in the sub-basins whose land cover is predominantly forest,the time series is homogeneous and *** current study highlighted the impacts that 40 years of LULC changes in an Amazonian basin had on hydro-sedimentological variables,which,in turn,can play an important role in changing the hydrological cycle,consequently these changes can also impact diverse human activities in the region,such as agribusiness,livestock,energy production,food security,and public water ***,it is concluded that the sWAT model is a good estimator of hydro-sedimentological processes in Amazonian basins and can be used by decision makers in the management of water and environmental resources.

关键词： Hydrological modeling sediment yield Amazon basin sWAT model

Trophic niche changes associated with the eradication of invasive mammals in an insular lizard: an assessment using isotopes

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Current Zoology 2022年第2期68卷 211-219页

作者： sara F.NUNEs Mario MOTA-ferreira Marta sAMPAIO Joana ANDRADE Nuno OLIVEIRA Rui REBELO Ricardo rocha Faculty of sciences Centre for EcologyEvolution and Environmental ChangesUniversity of LisbonLisbon1749-016Portugal CIBI0-lnBI0 Research Center in Biodiversity and Genetic ResourcesUniversity of PortoVairao4485-661Portugal CIBI0-lnBI0 Research Center in Biodiversity and Genetic ResourcesInstitute of AgronomyUniversity of LisbonLisbon1349-017Portugal sociedade Portuguesa Para o Estudo das Aves Av.Columbano Bordalo Pinheiro873°AndarLisboa1070-062Portugal

Invasive species are a major threat to island biodiversity,and their eradications have substantially contributed to the conservation of island ***,the consequences of eradications on the trophic ecology of native taxa are largely ***,we used the eradication of invasive black rats Rattus rattus and European rabbits Oryctolagus cuniculus from the Berlenga Island,in the western coast of Portugal,as a whole-ecosystem experiment to investigate the effects of the eradication of invasive mammals on the trophic niche and body dimensions of the island-restricted Berlenga wall lizard Podarcis carbonelli berlengensis over a 2-year *** results suggest an expansion of the isotopic niche and an intensification of the sexual dimorphism of the lizard following mammal ***,we found considerable variability in isotopic niche across the island and detected evidence of sex-specific and season-modulated nutritional requirements of this threatened *** findings support that the eradication of 2 of the planets most problematic invasive vertebrates led to changes in the lizard trophic niche and sexual dimorphism in just 2 *** suggests that the ecological pressuresfor example,prey availability and habitat structureto which lizards are exposed have substantially changed *** study emphasizes the scientific value of island eradications as experiments to address a wide range of ecological questions and adds to the increasing body of evidence supporting substantial conservation gains associated with these restoration interventions.

关键词： food-webs invasive species eradication Oryctolagus cuniculus Podarcis carbonelli berlengensis Rattus rattus

Chinese Medicine Pattern Differentiation and Its Implications for Clinical Practice

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Chinese Journal of Integrative Medicine 2011年第11期17卷 818-823页

作者： Arthur sá ferreira Agnaldo José Lopes Laboratory of Computational Modeling and simulation in Rehabilitation Program of Rehabilitation science Augusto Motta University Laboratory of Cardiopulmonar Analysis Rehabilitation science Postgraduation Program Augusto Motta University Laboratory of Respiratory Physiology State University of Rio de Janeiro

Chinese medicine practitioners apply the differentiation reasoning for decision-making. The wide scope of Chinese medicine intervention provides coverage of methods and techniques with applications to primary, secondary and tertiary levels of prevention. The rapid evolution of mathematical and computational techniques allowed the implementation of several models for pattern differentiation that were tested for several physiologic systems. Concurrently, it is argued that pattern differentiation might improve the efficacy of either traditional or conventional medical interventions. This article reviewed the influence of pattern differentiation into clinical practice organized by medical field： general pattern differentiation; genitourinary （recurrent cystitis）; cardiovascular （coronary heart disease; arterial hypertension; angina pectoris）; neurology （stroke）; surgery; metabolic （diabetes mellitus）; hepatic （cirrhosis）; gastrointestinal （chronic superficial gastritis）; orthopedic （low back pain; rheumatoid arthritis; cervical spondylosis; elbow arthritis）; oncology （gastric mucosal dysplasia; lung cancer）; gynecologic and obstetric manifestations （nausea and vomiting）. The reviewed studies presented achievements that have contributed to the integration of Chinese medicine and evidence-based medicine in the treatment of many mild and severe diseases. Target diseases considered as major public health problems were also investigated and the results are promising regarding the possibility to treat guided by pattern differentiation.

关键词： Chinese medicine-syndrome differentiation Chinese medicine preventive medicine rehabilitation "health care delivery"

Laser texturing of piston ring for tribological performance improvement

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Friction 2023年第10期11卷 1895-1905页

作者： Rita ferreira Óscar CARVALHO Luís sOBRAL sandra CARVALHO Filipe sILVA CMEMs-UMinho University of MinhoGuimarães 4800058Portugal LABBELs-Associate Laboratory Guimarães 4800058Portugal CEMMPRE-Center for Mechanical Engineering Materials and ProcessesUniversity of CoimbraRua Luís Reis SantosCoimbra 3030-788Portugal MAHLE Componentes de MotoresS.A.Núcleo Industrial de MurtedeCantanhede 3060-372Portugal

The radial surface coating layer of compression piston rings is used to improve their wear resistance during the internal combustion engine ***,at top dead centers,the friction coefficient of the piston ring–cylinder liner pair is detrimental to the engine’s tribological *** this work,dimples with different texture dimensions and densities were tested in a home-developed *** friction coefficient was measured for all samples,and for those with the best results,their wear resistance was *** texture with an aspect ratio of 0.25 and a density area of 15%reported the best tribological results.

关键词： piston ring surface texture friction wear

Promoting integrative medicine by computerization of traditional Chinese medicine for scientific research and clinical practice: The suiteTCM Project

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Journal of Integrative Medicine 2013年第2期11卷 135-139页

作者： Arthur de sá ferreira Laboratory of Computational simulation and Modeling in Rehabilitation Post-graduation Program of Rehabilitation Science Augusto Motta University Center

BACKGROUND： Chinese and contemporary Western medical practices evolved on different cultures and historical contexts and, therefore, their medical knowledge represents this cultural divergence. Computerization of traditional Chinese medicine （TCM） is being used to promote the integrative medicine to manage, process and integrate the knowledge related to TCM anatomy, physiology, semiology, pathophysiology, and therapy. METHODs： We proposed the development of the suiteTCM software, a collection of integrated computational models mainly derived from epidemiology and statistical sciences for computerization of Chinese medicine scientific research and clinical practice in all levels of prevention. The software includes components for data management （DataTCM）, simulation of cases （simTCM）, analyses and validation of datasets （sciTCM）, clinical examination and pattern differentiation （DiagTCM, TongueTCM, and PulseTCM）, intervention selection （AcuTCM, HerbsTCM, and DietTCM）, management of medical records （ProntTCM）, epidemiologic investigation of sampled data （ResearchTCM）, and medical education, training, and assessment （studentTCM）. DIsCUssION： The suiteTCM project is expected to contribute to the ongoing development of integrative medicine and the applicability of TCM in worldwide scientific research and health care. The suiteTCM 1.0 runs on Windows XP or later and is freely available for download as an executable application.

关键词： traditional Chinese medicine evidence-based practice computer-assisted decision making

Analysis of alternative parameters of dynamic resistance measurement in high voltage circuit breakers

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High Voltage 2019年第3期4卷 197-202页

作者： Herbet Filipe dos santos sousa Adriano Costa de Oliveira George Victor rocha Xavier Henrique Nunes de santana Edson Guedes da Costa Tarso Vilela ferreira Federal University of Campina Grande Campina GrandeBrazil Federal University of sergipe AracajuBrazil

Throughout its lifetime,high-voltage circuit breaker(HVCB)contacts suffer from inevitable degradation processes,especially during the formation of electric *** degraded contacts can reduce the current interruption capacity and increase the chances of operational faults,which might lead to considerable financial ***,the use of efficient evaluating techniques is a key factor to achieve systems *** dynamic resistance measurement(DRM)is a technique that can be used to evaluate the degradation level of HVCB'*** 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 ***,DRM is a non-standardised technique and there are no specified parameters to evaluate the real wear ***,an analysis of alternative parameters extractible from the DRM technique is presented in this study,such as amplitude and variance of the DRM *** 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.

关键词： resistance parameters dynamic

Theoretical studies of Proton Radioactivity

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原子核物理评论 2016年第2期33卷 184-189页

作者： Lidia s. ferreira Enrico Maglione Centro de Fisica e Engenharia de Materiais CeFEMA and Departmento de Fisica Instituto Superior Tecnico Universidade de Lisboa Av Rovisco Pals 1049 001 Lisboa Portugal Dipartimento di Fisica e Astronomia "G. Galilei" Via Marzolo 8 1-35131 Padova Italy Istituto Nazionale di Fisica Nucleate Padova Italy

In the paper, we will discuss the most recent theoretical approaches developed by our group,to understand the mechanisms of decay by one proton emission, and the structure and shape of exotic nuclei at the limits of s... 详细信息

关键词： proton radioactivity drip-line nuclear density functional theory

simTCM: A human patient simulator with application to diagnostic accuracy studies of Chinese medicine

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Journal of Integrative Medicine 2015年第1期13卷 9-19页

作者： Arthur de sá ferreira Antonio Guilherme Pacheco Postgraduation Program in Rehabilitation science Augusto Motta University Center Program of scientific Computing

OBJECTIVE： The aim of this work is to develop and implement the simTCM, an advanced computationa model that incorporates relevant aspects from traditional Chinese medicine （TCM） theory as well as advanced statistical and epidemiological techniques for simulation and analysis of human patients. METHODs： simTCM presents five major attributes for simulation： representation of true and false profiles for any single pattern; variable count of manifestations for each manifestation profile; empirical distributions of patterns and manifestations in a disease-specific population; incorporation of uncertainty in clinical data; and the combination of the four examinations. The proposed model is strengthened by following international standards for reporting diagnostic accuracy studies, and incorporates these standards in its treatment of study population, sample size calculation, data collection of manifestation profiles, exclusion criteria and missing data handling, reference standards, randomization and blinding and test reproducibility. REsULTs： simulations using data from patients diagnosed with hypertension and post-stroke sensory- motor impairments yielded no significant differences between expected and simulated frequencies of patterns （P = 0.22 or higher）. Time for convergence of simulations varied from 9.90 s （9.80, 10.27） to 28.31 s （26.33, 29.52）. The ratio iteration profile necessary for convergence varied between 1：1 and 5：1. CONCLUsION： This model is directly connected to forthcoming models in a large project to design and implement the suite TCM： ProntTCM, sciTCM, DiagTCM, studentTCM, Research TCM, HerbsTCM, AcuTCM, and DataTCM. It is expected that the continuity of the suiteTCM project enhances the evidence-based practice of Chinese medicine.

关键词： medicine, Chinese traditional evidence-based medicine computer-assisted decision making rehabilitation medicine (TCM)

Tunable super-structured Fiber Bragg Gratings with Perfect sequences Based on m-sequence

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Journal of Electronic science and Technology 2017年第4期15卷 358-363页

作者： Joao s.Pereira Marco P.M.ferreira Marko Gasparovic Instituto de Telecomunicacoes Lisboa 1049-001 Portugal Institute Polytechnic of Leiria Leiria 2411-901 Portugal Centro de Investigaao em Informaica e Comunicacoes Institute Polytechnic of Leiria Leiria 2411-901Portugal

Recently, a tunable fiber Bragg grating(FBG) was developed by using stress-responsive colloidal crystals. In this paper, we have simulated the application of these nanoparticles into the super-structured fiber Bragg grating(ssFBG) written with perfect sequences derived from a short maximal-length sequence. A tunable ssFBG will be available to overcome the prohibitive temperature variation of the optical codecs. Nevertheless,we presented a method to implement coherent time spreading optical code-division multiple-access(OCDMA) where a unique code(or perfect sequence) can be reused and mixed with different wavelengths to obtain a tunable wavelength-division multiplexing(WDM)system. In order to maximize the binary throughput, we have selected a unique short maximal-length sequence composed of 7 chips that can be tuned with 7 different optical wavelengths. We found thousands of different tunable combinations that presented power contrast ratios(P/C) higher than 12 dB. When a WDM-OCDMA system used 2 different combinations simultaneously, the perfect binary detection with error correction codes was achieved successfully. The tunable ssFBG with colloidal crystals will be a simple and good alternative choice for fiber-to-the-home(FTTH) communications.

关键词： Optical code-division multiple-access(OCDMA) super-structured fiber Bragg grating(ssFBG) wavelength-division multiplexing OCDMA(WDM-OCDMA)