Journal articles on the topic 'EME'
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1
Walker, S. "EIC/EME chairman's report." IEEE Electrical Insulation Magazine 20, no. 5 (September 2004): 28–29. http://dx.doi.org/10.1109/mei.2004.1342431.
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Lim, Jong-Kwang, and Hyunju Lee. "Analysis of High-Voltage EME and Design for EMC in Hybrid Electric Vehicle." Journal of the Korea Institute of Military Science and Technology 17, no. 5 (October 5, 2014): 569–76. http://dx.doi.org/10.9766/kimst.2014.17.5.569.
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Wang, Lei, Jun-Geon Je, Hyun-Soo Kim, Kaiqiang Wang, Xiaoting Fu, Jiachao Xu, Xin Gao, and You-Jin Jeon. "Anti-Melanogenesis and Photoprotective Effects of Ecklonia maxima Extract Containing Dieckol and Eckmaxol." Marine Drugs 20, no. 9 (August 30, 2022): 557. http://dx.doi.org/10.3390/md20090557.
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Seaweeds are potential ingredients in the cosmeceutical industry. Our previous study demonstrates that the phlorotannin-enriched extract of Ecklonia maxima (EME-EA) containing dieckol and eckmaxol possesses strong anti-inflammatory activity and suggests the cosmeceutical potential of EME-EA. In order to evaluate the cosmeceutical potential of EME-EA, the anti-melanogenesis and photoprotective effects of EME-EA were investigated in this study. EME-EA remarkably inhibited mushroom tyrosinase and melanogenesis in alpha-melanocyte-stimulating hormone-stimulated B16F10 cells. In addition, EME-EA significantly suppressed UVB-induced HaCaT cell death that was consistent with inhibition of apoptosis and reduction in scavenging intracellular reactive oxygen species. Furthermore, EME-EA significantly inhibited collagen degradation and matrix metalloproteinases expression in UVB-irradiated HDF cells in a concentration-dependent manner. These results indicate that EME-EA possesses strong anti-melanogenesis and photoprotective activities and suggest EME-EA is an ideal ingredient in the pharmaceutical and cosmeceutical industries.
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Li, Bing, Yang Zhen, Lei Zhang, and Zhen Hua Fu. "Feature Extraction for Electromagnetic Environment Complexity Classification Based on Non-Negative Matrix Factorization." Advanced Materials Research 791-793 (September 2013): 2100–2103. http://dx.doi.org/10.4028/www.scientific.net/amr.791-793.2100.
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Assessing the complexity degree of electromagnetic environments (EME) is a typical pattern recognition problem. Feature extraction is the most significant step for EME complexity classification tasks. In his work, a novel feature extraction scheme for EME complexity classification scheme based on non-negative matrix factorization (NMF) is presented. EME signals with four complexity degree are simulated to evaluate the effectiveness of the presented method. Experimental results reveal that the NMF based features to be desirable indices for accurate complexity degree evaluation of EME.
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Wan, Guo Xiang, Qi Sheng Wang, and Wen Biao Zeng. "Intensity Variation of the Electromagnetic Emission (EME) of Rock Masses Failure under Dynamic Load." Advanced Materials Research 900 (February 2014): 699–702. http://dx.doi.org/10.4028/www.scientific.net/amr.900.699.
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Incident frequency of wave on the intensity variation of the EME had been studied in this paper, based on failure test under dynamic load of Granite. The results show that the intensity of EME gradually attenuates with increasing of incident frequency of wave. The intensity of EME with the joint stiffness; the intensity of EME increases with viscosity coefficient; the variation of the EME with viscosity coefficient is influenced by frequency. The research outcomes are in agreement with others experimental results.
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Kolář, P. "Some possible correlations between electro-magnetic emission and seismic activity during West Bohemia 2008 earthquake swarm." Solid Earth 1, no. 1 (October 6, 2010): 93–98. http://dx.doi.org/10.5194/se-1-93-2010.
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Abstract. A potential link between electromagnetic emission (EME) and seismic activity (SA) has been the subject of scientific speculations for a long time. EME versus SA relations obtained during the 2008 earthquake swarm which occurred in West Bohemia are presented. First, a brief characterisation of the seismic region and then the EME recording method and data analysis will be described. No simple direct link between EME and SA intensity was observed, nevertheless a deeper statistical analysis indicates: (i) slight increase of EME activity in the time interval 60 to 30 min before a seismic event with prevalent periods about 10 min, (ii) some gap in EME activity approximately 2 h after the event, and (iii) again a flat maximum about 4 h after the seismic events. These results qualitatively correspond with the observations from other seismically active regions (Fraser-Smith et al., 1990). The global decrease of EME activity correlating with the swarm activity decay was also observed. Due to the incomplete EME data and short observation time, these results are limited in reliability and are indicative only.
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Huang, Chuixiu, Astrid Gjelstad, and Stig Pedersen-Bjergaard. "Organic solvents in electromembrane extraction: recent insights." Reviews in Analytical Chemistry 35, no. 4 (December 1, 2016): 169–83. http://dx.doi.org/10.1515/revac-2016-0008.
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AbstractElectromembrane extraction (EME) was invented in 2006 as a miniaturized sample preparation technique for the separation of ionized species from aqueous samples. This concept has been investigated in different areas of analytical chemistry by different research groups worldwide since the introduction. Under the influence of an electrical field, EME is based on electrokinetic migration of the analytes through a supported liquid membrane (SLM), which is an organic solvent immobilized in the pores of the polymeric membrane, and into the acceptor solution. Up to date, close to 150 research articles with focus on EME have been published. The current review summarizes the performance of EME with different organic solvents and discusses several criteria for efficient solvents in EME. In addition, the authors highlight their personal perspective about the most promising organic solvents for EME and have indicated that more fundamental work is required to investigate and discover new organic solvents for EME.
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Tiago de Oliveira, J. "An extreme-Markovian-evolutionary (EME) sequence." Trabajos de Estadistica Y de Investigacion Operativa 36, no. 3 (October 1985): 291–300. http://dx.doi.org/10.1007/bf02888564.
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Pilau, Felipe Gustavo, Rafael Battisti, Lucindo Somavilla, and Luciano Schwerz. "Temperatura basal, duração do ciclo e constante térmica para a cultura do crambe." Bragantia 70, no. 4 (2011): 958–64. http://dx.doi.org/10.1590/s0006-87052011000400032.
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A cultura do crambe surge como alternativa de produção, destacando sua precocidade e o potencial para a produção de óleo, em estação fria. A escassez de informações sobre parâmetros climáticos e fenológicos conduziu à determinação da temperatura basal inferior, da duração do ciclo e da constante térmica da cultura do crambe em Frederico Westphalen (RS). O trabalho foi composto por sete épocas de semeadura em 2009 e quatro em 2010. A temperatura basal inferior foi determinada pelos métodos do menor desvio-padrão e do desenvolvimento relativo. A temperatura basal para o subperíodo emergência-maturação (EME-MAT) foi de 9,5 ºC, enquanto para os subperíodos emergência-início da floração (EME-IFLO), emergência-fim da floração (EME-FFLO) e início da floração-fim da floração (IFLO-FFLO) foram, respectivamente, de 10,2 ºC, 10,8 ºC e 10,0 ºC, obtidas pelo método do menor desvio-padrão. O subperíodo compreendido entre EME-MAT variou de 74 a 136 dias, com duração média de 96 dias. Para os subperíodos EME-IFLO, EME-FFLO e IFLO-FFLO a duração média foi, respectivamente, de 52, 82 e 29 dias. Considerando-se os valores de temperatura basal para cada subperíodo, a duração média entre EME-MAT foi de 691 ºC dia, variando entre 576 ºC dia e 792ºC dia. Para os subperíodos EME-IFLO, EME-FFLO e IFLO-FFLO, a duração média do foi de 279 ºC dia; 444 ºC dia e 220 ºC dia, respectivamente.
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Ebersole, Kyle T., and David M. Malek. "Fatigue and the Electromechanical Efficiency of the Vastus Medialis and Vastus Lateralis Muscles." Journal of Athletic Training 43, no. 2 (March 1, 2008): 152–56. http://dx.doi.org/10.4085/1062-6050-43.2.152.
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Abstract Context: The relationship between the amplitudes of the mechanomyographic (MMG) and electromyographic (EMG) signals has been used to examine the “electromechanical efficiency” (EME) of normal and diseased muscle. The EME may help us to better understand the neuromuscular relationship between the vastus medialis and vastus lateralis muscles. Objective: To examine the EME of the vastus medialis and vastus lateralis muscles during a fatiguing task. Design: Repeated-measures design. Setting: Research laboratory. Patients or Other Participants: Ten healthy males (age = 23.2 ± 1.2 years) with no history of knee injury. Intervention(s): Seventy-five consecutive, maximal concentric isokinetic leg extensions at a velocity of 180°/s. Main Outcomes Measure(s): Bipolar surface EMG electrodes were placed over the vastus medialis and vastus lateralis muscles, with an MMG contact sensor placed adjacent to the superior EMG electrode on each muscle. The MMG and EMG amplitude values (root mean squares) were calculated for each of the 75 repetitions and normalized to the highest value from the 75 repetitions. The EME was expressed as the ratio of the log-transformed normalized MMG amplitude to the normalized EMG amplitude. For each muscle, the linear relationship for the normalized-group mean EME was determined across the 75 repetitions. Results: Linear regression indicated decreases in torque (R2 = .96), vastus medialis EME (R2 = .73), and vastus lateralis EME (R2 = .73). The slopes for the vastus medialis and vastus lateralis EME were not different (P > .10). Conclusions: The similarities in the fatigue-induced decreases in EME for the vastus medialis and vastus lateralis muscles suggested that symmetry was present between the muscles in the electric and mechanical responses to repeated, maximal muscle actions. The EME measurements may provide a unique insight into the influence of fatigue on the contractile properties of skeletal muscle, including alterations that occur to the intrinsic electric and mechanical components. The EME may be useful in assessing and quantifying clinically relevant asymmetries in vastus medialis and vastus lateralis muscle function in those with knee injuries.
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Marques, Suelen Fernanda, and Suelly Cecilia Olivan Limongi. "A extensão média do enunciado (EME) como medida do desenvolvimento de linguagem de crianças com síndrome de Down." Jornal da Sociedade Brasileira de Fonoaudiologia 23, no. 2 (2011): 152–57. http://dx.doi.org/10.1590/s2179-64912011000200012.
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OBJETIVO: Caracterizar a extensão média de enunciados em morfemas (EME-m) e palavras (EME-p) produzida por crianças com síndrome de Down (SD) e verificar a eficácia da utilização da EME-p como medida do desenvolvimento linguístico geral de crianças com SD. MÉTODOS: Participaram 15 crianças com SD, com idades entre cinco e 12 anos, que foram submetidas à situação de interação livre. As crianças foram divididas em três grupos, com base na idade cronológica e mental, a partir da aplicação do Primary Test of Nonverbal Intelligence. Os 100 primeiros enunciados foram analisados quanto a: número de morfemas gramaticais para artigos, substantivos e verbos (MG-1) e pronomes, preposições e conjunções (MG-2); extensão média dos enunciados considerando-se morfemas (EME-m) e palavras (EME-p). RESULTADOS: A comparação intergrupos mostrou que quanto maior a idade, mais altas foram as médias obtidas, havendo diferença para todas as variáveis, com exceção de MG-2. Os mesmos resultados foram obtidos na comparação intragrupo para todas as variáveis. Houve forte correlação entre EME-m e EME-p. CONCLUSÃO: A EME-p pode ser utilizada como medida de identificação de desenvolvimento linguístico geral. No entanto, ressalta-se que a utilização de todas as variáveis relacionadas à extensão média de enunciados fornece maior eficiência na identificação do desenvolvimento linguístico e na análise de suas alterações.
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Eie, Linda Vårdal, Torstein Kige Rye, Frederik Hansen, Trine Grønhaug Halvorsen, and Stig Pedersen-Bjergaard. "Electromembrane extraction of peptides and amino acids – status and perspectives." Bioanalysis 13, no. 4 (February 2021): 277–89. http://dx.doi.org/10.4155/bio-2020-0285.
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This article reviews the scientific literature on electromembrane extraction (EME) of peptides and amino acids. In EME, target analytes are extracted from aqueous sample, through a supported liquid membrane (organic) and into a microliter volume of aqueous buffer (acceptor). Experimental conditions and performance for EME of peptides and amino acids are reviewed and discussed in detail, providing readers with an overview and basic understanding of the subject. In addition, this review discuss the potential for future applications, and scientific questions that need to be addressed for EME of peptides and amino acids to be generally accepted. EME is under commercialization, and therefore we expect it will be an active area of research in the near future.
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Kolář, P. "Some possible correlations between electro-magnetic emission and seismic activity during West Bohemia 2008 earthquake swarm." Solid Earth Discussions 2, no. 1 (April 12, 2010): 145–60. http://dx.doi.org/10.5194/sed-2-145-2010.
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Abstract. There are long time lasting speculations about electro-magnetic emission phenomena (hereafter EME) connected with seismic activity. In the present work we study such relations in West Bohemia region during 2008 earthquake swarm. After brief characterization of the seismic region, we describe recording method and data analysis. We did not observe any direct link between EME and seismic events, however statistical analysis indicates that it could be some increase of EME activity in time 60 to 30 min before an event on periods 17–14 min, some gap in EME activity approximately 2 h after the event and a maximum 4 h after the events (note, that this result qualitatively correspond with observations from other seismic regions). Also global decrease of EME activity with the decay of the swarm activity was observed. However due to incomplete EME data and short time of observation these results must be understand as indication of possible correlation rather than reliable relation.
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Dai, Hua. "Service Convenience, Trust and Exchange Relationship in Electronic Mediated Environment (EME)." International Journal of Dependable and Trustworthy Information Systems 1, no. 1 (January 2010): 1–24. http://dx.doi.org/10.4018/jdtis.2010010101.
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The purpose of this study is to develop and empirically validate a research framework in relation to Chinese consumers’ service convenience perceptions, its determinants, and influences in EME. The analysis of data from 415 Chinese consumers reveals that service convenience serves a very significant meditating role in terms of services in EME and consumer relational exchange in the Chinese context. This study provides companies and service providers in EME, who are seeking to acquire and retain customers in Chinese marketplace, specific information about the Chinese consumer’s perceptions in EME in relation to service consumption decisions.
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Patra, A. K., M. Lalhriatpuii, and B. C. Debnath. "Predicting enteric methane emission in sheep using linear and non-linear statistical models from dietary variables." Animal Production Science 56, no. 3 (2016): 574. http://dx.doi.org/10.1071/an15505.
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The objective of the present study was to develop linear and non-linear statistical models for prediction of enteric methane emission (EME) in sheep. A database from 80 publications, which included a total of 449 mean observations of EME measured on more than 1500 sheep, was constructed to develop prediction and evaluation of models of EME. Dietary nutrient composition (g/kg), nutrient or energy intake (kg/day or MJ/day) and digestibility (g/kg) of organic matter were used as predictors of EME (MJ/day). The dietary concentrations of neutral detergent fibre and crude protein, and feed intake, were 435 g/kg, 152 g/kg and 0.92 kg/day, respectively. The EME by sheep expressed as MJ/day and % of gross energy intake was 1.02 and 6.54, respectively. The simple linear equation that predicted EME with high precision and accuracy was EME = 0.208(±0.040) + 0.049(±0.0039) × gross energy intake (MJ/day), adjusted R2 = 0.86 with root mean-square prediction error of 22.7%, of which 93% was from random error and regression bias of 3.20%. Additions of dietary concentration of fibre and feeding level, and organic matter digestibility to the simple linear model improved the models. Among the non-linear equations developed, monomolecular model, i.e. EME = 5.699 (±1.94) – [5.699 (±1.94) – 0.133 (±0.047)] × exp[–0.021(±0.0071) × metabolisable energy intake (MJ/day)]; adjusted R2 = 0.90 and mean-square prediction error = 20.1%, with 96.3% random error, performed better than simple linear and other non-linear models. The equations developed in the present study will be useful for national methane inventory preparation, and for a better understanding of dietary factors influencing EME in sheep.
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Roushangar, Kiyoumars, and Farhad Alizadeh. "Entropy-based analysis and regionalization of annual precipitation variation in Iran during 1960–2010 using ensemble empirical mode decomposition." Journal of Hydroinformatics 20, no. 2 (January 29, 2018): 468–85. http://dx.doi.org/10.2166/hydro.2018.037.
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Abstract This study proposes an ensemble empirical mode decomposition (EEMD)-based multiscale entropy (EME) approach. The proposed model is used to analyze and gage variability of the annual precipitation series and spatially classify raingauges in Iran. For this end, historical annual precipitation data during 1960–2010 from 31 raingauges are decomposed using EEMD. Decomposed series of precipitation series present different periods and trends. Next, entropy concept is applied to the components obtained from EEMD to measure dispersion of multiscale components. It is observed that entropy values of intrinsic mode functions (IMFs) 1–5 and residual component show different behaviors. IMF 5 and residual components have highest values of entropy, whereas IMF 3 and 4 present highest entropy variation among all components. Based on spatial distribution of EME values, EME 3 and 1 have a downward variation from north to south, whereas EME 1 presents increasing variation. Spatial classification of raingauges is performed using EME values as input data to self-organizing map (SOM) and k-means clustering techniques. Finally, spatial structure of annual precipitation variation is investigated. It is observed that EME values have a downward trend with latitude, whereas it is observed that EME shows an upward relationship with longitude in Iran.
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Santos, Maria Inês, Hipólito Nzwalo, José Paulo Monteiro, and Maria José Fonseca. "Estado de mal convulsivo na urgência pediátrica: estudo retrospectivo de cinco anos." Acta Médica Portuguesa 25, no. 4 (August 30, 2012): 203–6. http://dx.doi.org/10.20344/amp.61.
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Introdução/Objectivos: O estado de mal epiléptico (EME) é a emergência neurológica mais comum na infância. Pode associar-se a mortalidade e morbilidade elevadas, traduzida em défices neurológicos focais, perturbação do desenvolvimento e epilepsia. Os objectivos deste estudo foram descrever a epidemiologia, a mortalidade e morbilidade do EME convulsivo e avaliar os fatores preditivos do seu prognóstico neurológico, cognitivo e comportamental. Material e Métodos: Estudo observacional, retrospectivo e analítico. Foram analisados os processos clínicos das crianças admitidas na Urgência Pediátrica do Hospital Garcia de Orta com diagnóstico de EME convulsivo entre um de Janeiro 2002 a 31 de Dezembro 2006. As variáveis estudadas foram: idade na crise e idade atual, sexo, tipo de crise epiléptica, duração e etiologia da crise epiléptica, défice neurológico, epilepsia, crises epilépticas, desenvolvimento psicomotor e comportamento. Relativamente às últimas cinco variáveis foram analisados os dados prévios e posteriores ao episódio de EME. O tratamento dos dados foi efectuado com os programas Excel2007® e SPSS 15.0®. Resultados: Foram admitidas 29 crianças, com 33 episódios de EME com idades compreendidas entre os nove meses e os cinco anos, não foram encontradas diferenças na distribuição entre sexos (masculino: 12; feminino: 17 – p = 0,46). A etiologia do EME foi febril em 16 crianças, sintomática remota em sete, relacionada com epilepsia idiopática/criptogénica em cinco crianças e não classificável em um caso. O tempo médio de seguimento foi de seis anos e quatro meses. Não se verificaram mortes associadas ao EME. Verificou-se deterioração do estado neurológico prévio em duas crianças (8,7%). Foi diagnosticada epilepsia subsequente ao EME em três (13%) crianças. Conclusões: Esta revisão retrospectiva sugere que o EME está associado a um melhor prognóstico do que o registado há algumas décadas atrás. Verificou-se uma evolução mais favorável no estado de mal febril relativamente às outras etiologias.
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Valcke, Jennifer, Nashwa Nashaat-Sobhy, Davinia Sánchez-García, and Julie Walaszczyk. "Teacher development to mediate global citizenship in English-medium education contexts." Journal of English-Medium Instruction 1, no. 1 (January 21, 2022): 65–84. http://dx.doi.org/10.1075/jemi.21020.val.
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Abstract This paper reviews how higher education should rethink the Continuous Professional Development (CPD) of their teaching staff, so that English-Medium Education (EME) is integrated in addressing issues of sustainability (solving problems that threaten humanity and the quality of life). Four focal points are selected: promoting inclusive and equitable quality education; shifting to a transdisciplinary approach; dialogic teaching and learning; and digitalising EME practices. The paper, which draws on research findings, presents an overview of the current contexts of teacher training for EME in Europe, with specific examples of available best practices. This is followed by a vision for future directions to link internationalisation of education and EME to the Sustainable Development Goals (SDGs) with a focus on educational development fit for global engagement. The current importance of training EME lecturers for teaching in English is acknowledged, but it is stressed that professional development must evolve to include emerging global teaching and learning competences. The last section is dedicated to practical recommendations for all EME community members.
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Foucart, G., A. Aranda, S. Grolleau, R. Palancade, L. Valton, and J. L. Ducassé. "Étude prospective sur EME ; résultats en préhospitalier." Journal Européen des Urgences 22 (June 2009): A76. http://dx.doi.org/10.1016/j.jeur.2009.03.124.
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Trčka, Tomáš, Robert Macků, Pavel Koktavý, Pavel Škarvada, Ivo Baroň, and Josef Stemberk. "Field Measurement of Natural Electromagnetic Emissions near the Active Tectonic and Mass-Movement Fractures in Caves." Solid State Phenomena 258 (December 2016): 460–64. http://dx.doi.org/10.4028/www.scientific.net/ssp.258.460.
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Laboratory tests on a wide range of solid materials shoved that the electromagnetic emission (EME) signals are generated during the samples mechanical stress. EME anomalies have been observed also under natural conditions in association to fracture processes, tectonic loading, stress redistribution and crack propagation prior to earthquake or in relation to deep-seated gravitational mass movements. This paper describes a first prototype of the Emission data logger, which was specially developed for the continual EME monitoring in field conditions. Our equipment has been installed and tested in Obir Caves (Austria) at an active tectonic fault. The pilot long-term EME measurement results from this location are also presented in this paper.
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Vasiliades, John. "Sensitive, Selective, and Rapid Procedure for Quantifying Cocaine in Urine." Clinical Chemistry 37, no. 12 (December 1, 1991): 2152. http://dx.doi.org/10.1093/clinchem/37.12.2152.
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Abstract Cocaine metabolism produces two major metabolites, benzoylecgonine (BE) and ecgonine methyl ester (EME) (1-4). BE is the metabolite ordinarily used to identify cocaine misuse in urine (5). However, determination of EME and cocaine in urine can provide valuable and important forensic information as to the source of BE and the time of cocaine ingestion (4-7). Laboratories should therefore be able to provide information on EME and cocaine when requested, in addition to BE. We have already described a sensitive and selective procedure for EME analysis in urine (8). We now present a rapid and sensitive procedure for the identification and quantification of cocaine in urine.
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Dias, Adrielle Araújo, Catarine Ottobeli, and Ledismar José Da Silva. "Estado de Mal Epiléptico Refratário." JBNC - JORNAL BRASILEIRO DE NEUROCIRURGIA 26, no. 2 (March 31, 2018): 151–58. http://dx.doi.org/10.22290/jbnc.v26i2.1325.
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Objetivo: O estado de mal epiléptico (EME) é uma emergência neurológica caracterizada por crises epilépticas prolongadas, com duração maior do que 30 minutos. O EME que não responde a doses adequadas de dois anticonvulsivantes iniciais é caracterizado como refratário, quadro com elevada morbimortalidade. Nos casos em que a terapia medicamentosa se mostra ineficaz e nos quais há alto grau de concordância entre a semiologia, os exames de imagem e o eletroencefalograma, a abordagem cirúrgica deve ser considerada. Com base no exposto, este artigo teve como objetivo relatar o caso de um paciente submetido a tratamento cirúrgico do EME refratário. Métodos: Relato de caso com base na análise retrospectiva do prontuário e dos exames complementares. Resultados: Paciente com EME refratário foi submetido a tratamento cirúrgico com ressecção focal após 14 dias do início do quadro. As crises cessaram imediatamente. Conclusão: Houve completa resolução do EME refratário com boa evolução após o tratamento cirúrgico. Portanto, nos pacientes refratários ao tratamento clínico, a abordagem cirúrgica deve ser considerada.
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Yu, Ying. "Mechanical Engineering in English Teaching." Advanced Materials Research 482-484 (February 2012): 192–95. http://dx.doi.org/10.4028/www.scientific.net/amr.482-484.192.
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Based on the characteristic of English for mechanical engineering (EME) curriculum, an analysis is made of the EME teaching situation and learners’ requirement, and then the EME teaching practice is researched from the respects of teaching materials selection, acquisition of vocabulary, analysis of long complex sentence, training of students autonomous learning and diversity of teaching methods in order to well cultivate compound talents needed in the new century.
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Lv, Chengkun, Ziao Wang, Lei Dai, Hao Liu, Juntao Chang, and Daren Yu. "Control-Oriented Modeling for Nonlinear MIMO Turbofan Engine Based on Equilibrium Manifold Expansion Model." Energies 14, no. 19 (October 2, 2021): 6277. http://dx.doi.org/10.3390/en14196277.
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This paper investigates the control-oriented modeling for turbofan engines. The nonlinear equilibrium manifold expansion (EME) model of the multiple input multiple output (MIMO) turbofan engine is established, which can simulate the variation of high-pressure rotor speed, low-pressure rotor speed and pressure ratio of compressor with fuel flow and throat area of the nozzle. Firstly, the definitions and properties of the equilibrium manifold method are presented. Secondly, the steady-state and dynamic two-step identification method of the MIMO EME model is given, and the effects of scheduling variables and input noise on model accuracy are discussed. By selecting specific path, a small amount of dynamic data is used to identify a complete EME model. Thirdly, modeling and simulation at dynamic off-design conditions show that the EME model has model accuracy close to the nonlinear component-level (NCL) model, but the model structure is simpler and the calculation is faster than that. Finally, the linearization results are obtained based on the properties of the EME model, and the stability of the model is proved through the analysis of the eigenvalues, which all have negative real parts. The EME model constructed in this paper can meet the requirements of real-time simulation and control system design.
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Hersche, Ruth, and Andrea Weise. "Occupational Therapy-Based Energy Management Education in People with Post-COVID-19 Condition-Related Fatigue: Results from a Focus Group Discussion." Occupational Therapy International 2022 (April 14, 2022): 1–9. http://dx.doi.org/10.1155/2022/4590154.
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Persons with post-COVID-19 conditions have prolonged symptoms and longer-term consequences which can prevent them from returning to previous everyday functioning. Fatigue is the most frequent symptom reported in literature. Occupational therapists (OTs) are specialized in client-centered problem analysis, counseling, and education to recover occupational engagement and performance in everyday life. Since the beginning of the COVID-19 pandemic, OTs have been challenged to respond with services adequate to the needs of this patient group. Energy management education (EME) was initially developed for persons with multiple sclerosis-related fatigue and then made independent of diagnosis suitable to persons living with chronic disease-related fatigue. EME, a structured self-management education, is becoming a part of the new services. This study was aimed at exploring the initial experiences of OTs using the EME protocol and materials with persons with postacute COVID-19 and/or post-COVID-19 condition-related fatigue and gathering their recommendations for improvements and adaptions. One online focus group discussion took place in May 2021 with OTs experienced in using the EME protocol. The topics addressed were the institutional context of the OTs and their experiences during the treatment. A thematic analysis was performed. According to nine OTs working in different settings in Switzerland, the EME protocol is exploitable in both in- and outpatient settings and was judged appropriate by them, even if the EME materials can be improved. The main challenges for the OTs were the short period their patients had lived with fatigue; the discrepancy between self-concept, self-perception, and performance; and the insecurity, fear, and anxiety related to recovery. Further research is needed to include the perspective of EME participants and to measure quantitative outcomes such as fatigue impact, self-efficacy, occupational performance, and quality of life. Until the existing EME protocol is improved, it is applicable to persons with post-COVID-19 condition-related fatigue.
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Guo, Zhong Wei, Wen Tao Xu, Hong Feng Li, and Wang Yang Hu. "The Visualization of Electromagnetic Environment for Weapon Equipments." Advanced Materials Research 466-467 (February 2012): 1191–96. http://dx.doi.org/10.4028/www.scientific.net/amr.466-467.1191.
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Aiming at the invisibility of the electromagnetic environment (EME), this paper presents the method to visualize the weapon equipments EME. The visualization can be divided into two steps. Firstly, we can model the weapon equipments EME to get the electromagnetic data by the finite difference time domain(FDTD) and the transformation from the near field to the far field. Secondly, we can render the electromagnetic data by the data field visualization. The experiment shows that this way is feasible and effective.
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Zhou, Jin Hua, Ni Li, Jing Yang, Wen Jie Ma, and Han Zhou Sun. "A Solvent-Free Synthetic Technique for Epoxidized Methyl-α-Eleostearate Catalyzed by Cation Exchange Resin." Advanced Materials Research 830 (October 2013): 180–84. http://dx.doi.org/10.4028/www.scientific.net/amr.830.180.
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Epoxidized methyl-α-eleostearate (EME) is a new kind of plant oil-based epoxidized aliphatic acid ester which starts from Tung oil. Tung oil is a special, but abundant biomass resource in China. A solvent-free synthetic technique for EME catalyzed by cation exchange resin was developed. Experimental results showed that the optimal synthetic conditions for EME were as follows: cation exchange resin dosage 5% (wt, calculated by methyl-α-eleostearate), material molar ratio of methyl-α-eleostearate, H2O2 and CH3COOH 1:5:2.5, reaction duration 3 h and reaction temperature 65 °C. EME epoxy value reaches 6.5% under the optimal preparation conditions. The newly developed green technique features low cost, simple operation, low energy consumption, less pollution, short production cycle and good quality and is promising to be industrialized.
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Huertas, Teresa, Carmen Jurado, Manuel Salguero, Teresa Soriano, and Joaquin Gamero. "Stability of Cocaine Compounds in Biological Fluids During Post-Analytical Sample Storage." Journal of Analytical Toxicology 44, no. 8 (May 4, 2020): 864–70. http://dx.doi.org/10.1093/jat/bkaa044.
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Abstract The objective of this study is to evaluate in vitro stability of cocaine compounds, cocaine (COC), benzoylecgonine (BE), ecgonine methyl ester (EME) and benzoylecgonine ethyl ester (EBE), in blood and urine, during post-analysis custody. Stability was evaluated by measuring percent recovery. Parameters evaluated were time of custody (1 year), storage temperature (−20°C and 4°C), influence of preservative (only for blood samples) and pH (only for urine samples). The impact of the temperature is very important in blood samples. At −20°C all compounds demonstrated to be stable, with recoveries higher than 80% after 1 year. In contrast, degradation was observed in the concentration for all four compounds when the samples were maintained at 4°C. In these same conditions, the influence of the preservative was also noticeable and a higher stability was found in samples preserved with NaF. COC and EBE had similar profiles, and both compounds disappeared after 30 days in samples without NaF and after 150 days in samples with NaF added. EME disappeared after 185 days and after 215 days in samples without and with preservative, respectively. BE recoveries, after 365 days of storage, were 68.5% (in samples with NaF) and 3.7% (in samples without NaF). In urine samples, the four compounds were stable in all the studied conditions except when samples were at pH 8 and stored at 4°C where the compounds disappeared (COC and EBE after 75 days of storage and EME after 15 days). The exception was BE, with a recovery of 23% after 1 year of storage. Of the temperatures evaluated, −20°C seems to be optimal for storage to maintain the stability of cocaine and metabolites in biological samples. This can be further enhanced by maintaining a pH of 4 in urine samples and adding a NaF preservative to blood.
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Rentel, Maike C., Kelly Simpson, Anoushka Davé, Scott Carter, Margaret Blake, Jan Franke, Chris Hale, and Peter Varnai. "A 10-year impact assessment of the Efficacy and Mechanism Evaluation (EME) programme: an independent mixed-method evaluation study." Efficacy and Mechanism Evaluation 8, no. 20 (November 2021): 1–106. http://dx.doi.org/10.3310/eme08200.
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Background The Efficacy and Mechanism Evaluation (EME) programme – a Medical Research Council (MRC) and National Institute for Health Research (NIHR) partnership – funds trials that evaluate the efficacy of interventions with the potential to promote health and studies that improve our understanding of the mechanisms of underlying diseases and their treatments. Objective To conduct an independent review of the EME programme’s impact and identify opportunities for future improvement. Design A mixed-methods approach, including desk research, an analysis of secondary data, stakeholder consultation and the development of impact case studies. Participants Chief investigators of EME awards, unfunded applicants to the EME programme and key opinion leaders relevant to the programme and research ecosystem. Interventions No interventions were tested, as this was a retrospective programme evaluation. Main outcome measures The evaluation was guided by a set of 15 evaluation questions. Results The EME programme bridges the gap between proof-of-concept and effectiveness studies that are located among other MRC and NIHR schemes and grants from charities in the funding landscape. Mechanistic studies alongside EME trials add value by lending confidence to trial findings and providing insights into the underlying biology. Between 2009 and September 2018, £175.7M in funding was approved for 145 EME projects. EME programme-funded research has started to deliver value to the NHS and patients by improving treatments and providing more efficient use of resources. Of the 43 completed trials, 14% (n = 6) showed that the intervention had a positive effect, whereas 74% (n = 32) of trials did not. The remaining five (12%) trials were unable to recruit participants or did not proceed to the full-trial stage. Seven projects (i.e. 16% of completed trials) have informed clinical guidelines or regulatory approval decisions and another eight projects have the potential to do so in the future, given the nature of their findings. Projects in the EME programme portfolio address a range of UK health needs and government priority areas, but they do not fully align with the level of health needs present. Commissioned calls for applications steer applicants. However, many commissioned calls do not lead to funded awards, and a better understanding of the underlying reasons for this would enable targeted supported to address key health needs. The majority of EME projects investigate existing interventions of limited commercial interest, focusing on repurposing (67/136, 49%) and informing current practice (23/136, 17%). Although there is little evidence of wider economic impact from commercial benefits, the EME programme is important in funding research in which industry is unlikely to invest. Stronger co-ordination with other funders, such as charities, could lead to synergies, enhancing the potential for health impact and influence on other funders’ agendas. The main challenges identified for EME projects were ‘complex and slow contracting processes’ (35/46, 76%), ‘setting up of study sites’ (30/46, 65%) and patient recruitment (28/46, 61%). Enablers of research included a clinical research fellow position on the project and support from Clinical Research Networks and Biomedical Research Centres. Nearly all of the chief investigators consulted had engaged in patient and public involvement at some project stage, and a lack of patient and public involvement did not emerge as a barrier to research or impact. Research ideas stemming from patients were, however, over-represented among unfunded applications, but the reason for this is unclear. Limitations Only about one-third of all studies had been completed or had published their main findings, necessitating a purposive, rather than representative, sampling of the portfolio. The COVID-19 outbreak cut short the programme of interviews, limiting the depth to which some evaluation questions could be explored. Several data sources were based on self-reporting by chief investigators; whereas key self-reported aspects were verified through desk research, this was not possible for all findings. Conclusions The EME programme plays an important role in the UK research funding landscape and has started to deliver value to the NHS and patients. Based on the evidence gathered, seven recommendations were developed to enhance the EME programme’s health and economic impact and address challenges encountered by chief investigators in implementing research projects. Funding This project was funded by the EME programme, a MRC and NIHR partnership. This will be published in full in Efficacy and Mechanism Evaluation; Vol. 8, No. 20. See the NIHR Journals Library website for further project information.
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Nugrahani, Ratri Ariatmi, Tri Yuni Hendrawati, and Susanty Susanty. "AN ANALYSIS OF METAL SURFACE IMMERSED IN BASED LUBRICANT FROM MINERAL OIL CONTAINING VEGETABLE OIL WITH RICE BRAN OIL BASED BIO-INHIBITOR." Jurnal Bahan Alam Terbarukan 7, no. 2 (December 16, 2018): 156–63. http://dx.doi.org/10.15294/jbat.v7i2.11623.
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The need for environmentally friendly chemical products in daily needs encourages the production of its. The green-chemistry concept is using the process and produces chemical products that are ecofriendly. Including ecofriendly chemical products are base oil and additives for lubricants, grease, and fuels. The production is expected to reduce the consumption of mineral and synthetic base oils, so it will be biodegradable and renewable. This study compares the results of analysis of metallic surfaces immersed in the mixture of mineral and vegetable base oil, with the addition of rice bran oil bioadditive, ie epoxidized methyl ester (EME) and hydroxyl alkylbenzene sulphonic acid ester (HASE). The research method consists of preparing HASE; analyzing the effect of HASE and EME bioadditives addition on the mixture of base oil to the changing of metallic weight immersed in the mixture; determining the inhibition efficiency of the EME and HSAE additions; analyzing the metal surface using SEM-EDX (Scanning Electron Microscope) / (Energy Dispersive X-ray Spectrometry) to find images of microstructure and chemical compounds contained in specimens, and testing the metal difractogram immersed in base oil mixtures with bioadditive using XRD (X-Ray Diffraction). SEM test results of carbon steel immersed in a mixture of base oil and bioadditives show corrosion in which the metal surface color immersed in EME bioadditive mixtures is brighter. EDX spectra of metal sample surfaces immersed in a mixture of base oil, EME and HASE contain carbon (C) and iron (Fe). The carbon content in carbon steel samples immersed in the mixtures and HASE is higher. XRD test results show Fe2O3 phases in carbon steel samples immersed in the HASE bioadditive mixture are higher than in EME. While Fe3O4 phases in carbon steel samples immersed in the EME bioadditive mixture are higher than Fe2O3 phases in samples immersed in HASE bioadditive mixture.
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Koktavý, Pavel, Václav Veselý, Zbyněk Keršner, Petr Frantík, and Bohumil Koktavý. "Utilization of Electromagnetic and Acoustic Emission in Monitoring of Fracture of Cementitious Composites." Key Engineering Materials 465 (January 2011): 503–6. http://dx.doi.org/10.4028/www.scientific.net/kem.465.503.
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The paper is focused on the utilization of electromagnetic emission (EME) and acoustic emission (AE) phenomena within the non-destructive assessment of damage and fracture in cementitious composites. In the first part of the paper, the EME and AE responses from tests performed in two testing configurations differing considerably in stress distribution are investigated. Typical EME and AE response waveforms appear not to differ from each other for either of the loading configu-rations. However, a significant difference is observed in the frequency distribution of the time lag of the acoustic signal behind the electromagnetic one, which results from the different distribution of the fracture events over the specimen’s volume. In the second part of the paper, the failure process within the specimens in the used testing configurations is assessed from the fracture-mechanical point of view. A numerical 3D analysis of the stress distribution and crack propagation within the specimens was performed by using ATENA non-linear FEM code based on a fracture- and damage-mechanics, and plasticity approach. The predictions of the numerical model are in good agreement with the results obtained by AE/EME experimental measurements. The comparison of the AE/EME records from the tests with the results of performed numerical simulation can help in the understanding, interpretation and exploitation of AE/EME in research into damage to and failure of non-electric quasi-brittle silicate-based building materials.
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Mendes-da-Glória, Fernanda Januzzi, Francisco de Assis Alves Mourão Filho, Clarice Garcia Borges Demétrio, and Beatriz Madalena Januzzi Mendes. "Embryogenic calli induction from nucellar tissue of Citrus cultivars." Scientia Agricola 56, no. 4 suppl (1999): 111–1115. http://dx.doi.org/10.1590/s0103-90161999000500012.
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Nucellar tissues of seven Citrus varieties were introduced onto three growth media to produce embryogenic callus. The media tested were: EME [MT, modified, with the addition of malt extract (500 mg.L-1)]; 1/2-EME [half concentration of MT macronutrients + half concentration of BH3 macronutrients + 500 mg.L-1 malt extract + 1.55 g.L-1 of glutamine]; and EBA [EME + 0.44 muM 6-benzyladenine + 0.04 muM 2,4 D]. Soft friable calli were obtained from 'Cravo' and 'Ponkan' mandarins (Citrus reticulata, Blanco), 'Murcott' tangor (Citrus reticulata Blanco x Citrus sinensis L. Osbeck), 'Serra d'água' and 'Valencia' sweet oranges (Citrus sinensis, L. Osbeck) 120 days after callus induction. 'Natal' and 'Pera' sweet oranges (Citrus sinensis, L. Osbeck) produced hard non-friable calli in this period. EME and 1/2-EME media had the best results for 'Cravo' mandarin, 'Ponkan' mandarin and 'Serra d'água' sweet orange, whereas EBA was the best media composition to induce soft friable calli on 'Murcott' tangor and 'Valencia' sweet orange. Friable callus cultures of 'Cravo' and 'Ponkan' mandarins, and 'Murcott' tangor yielded high quality protoplasts after isolation. Abbreviations: a.c. - activated charcoal; BA - 6-benzyladenine; IAA - indole-acetic acid; 2,4-D - 2,4-diclorophenoxyacetic acid; MT - Murashige & Tucker basal medium.
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Bittante, Giovanni, Claudio Cipolat-Gotet, and Alessio Cecchinato. "Genetic Parameters of Different FTIR-Enabled Phenotyping Tools Derived from Milk Fatty Acid Profile for Reducing Enteric Methane Emissions in Dairy Cattle." Animals 10, no. 9 (September 15, 2020): 1654. http://dx.doi.org/10.3390/ani10091654.
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This study aimed to infer the genetic parameters of five enteric methane emissions (EME) predicted from milk infrared spectra (13 models). The reference values were estimated from milk fatty acid profiles (chromatography), individual model-cheese, and daily milk yield of 1158 Brown Swiss cows (85 farms). Genetic parameters were estimated, under a Bayesian framework, for EME reference traits and their infrared predictions. Heritability of predicted EME traits were similar to EME reference values for methane yield (CH4/DM: 0.232–0.317) and methane intensity per kg of corrected milk (CH4/CM: 0.177–0.279), smaller per kg cheese solids (CH4/SO: 0.093–0.165), but greater per kg fresh cheese (CH4/CU: 0.203–0.267) and for methane production (dCH4: 0.195–0.232). We found good additive genetic correlations between infrared-predicted methane intensities and the reference values (0.73 to 0.93), less favorable values for CH4/DM (0.45–0.60), and very variable for dCH4 according to the prediction method (0.22 to 0.98). Easy-to-measure milk infrared-predicted EME traits, particularly CH4/CM, CH4/CU and dCH4, could be considered in breeding programs aimed at the improvement of milk ecological footprint.
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Fábio, Agertt, Sérgio Antonio Antoniuk, Isac Bruck, and Lúcia Coutinho dos Santos. "Tratamento do estado de mal epiléptico em pediatria: revisão e proposta de protocolo." Journal of Epilepsy and Clinical Neurophysiology 11, no. 4 (December 2005): 183–88. http://dx.doi.org/10.1590/s1676-26492005000400006.
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INTRODUÇÃO: A definição do Estado de Mal Epiléptico (EME) compreende uma crise prolongada ou crises recorrentes sem recuperação da consciência por 30 minutos. Além de freqüente, tem mortalidade e morbidade elevadas. Há várias propostas de abordagem, sem uniformidade. OBJETIVO: Realizar uma revisão do tratamento do EME e proposta de protocolo. METODOLOGIA: Revisão na base de dados Medline, e proposta de um protocolo. RESULTADOS: A conduta inicial no EME é o estabelecimento de suporte de vida e uso de medicações efetivas. Os benzodiazepínicos são os medicamentos de primeira linha. Concomitante aos benzodiazepínicos utiliza-se fenitoína. Esta é eficaz em cessar a crise, porém com início de ação lento. O fenobarbital é a terceira droga mais usada, eficaz, porém as complicações podem indicar cuidados intensivos. O EME que não responde, considerado refratário, exige uso de midazolam em infusão contínua ou indução anestésica com barbitúricos, enquanto que propofol e outros têm sido menos usados. Aliando a revisão à experiência do serviço, realizamos uma proposição de abordagem ao EME. CONCLUSÃO: Há divergências nos protocolos de tratamento, e a realização de mais estudos com pacientes pediátricos poderia auxiliar o esclarecimento. O protocolo apresentado visa um tratamento eficaz com um mínimo de morbidade.
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Jara Barnett, Linda, Margot Hilarión Palomino, and Eduardo Manzanares Medina. "Evidencias de validez y confiabilidad de la Escala de Metas de Estudio (EME) en universitarios peruanos." Revista Argentina de Ciencias del Comportamiento 14, no. 1 (April 22, 2022): 23–35. http://dx.doi.org/10.32348/1852.4206.v14.n1.29771.
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El presente estudio instrumental tuvo por objetivo analizar las propiedades psicométricas de la Escala de Metas de Estudio (EME). Participaron 287 universitarios de Lima, (66% hombres), de 18 a 26 años (M = 19.66, DE = 1.64). Se realizó un análisis factorial confirmatorio donde el modelo de tres factores relacionados presentó adecuados índices de ajuste (CFI = .92, SRMR = .06, RMSEA = .07). Adicionalmente, se hallaron correlaciones positivas y significativas entre la EME y la Escala de Autoeficacia Percibida Específica de Situaciones Académicas (EAPESA), así como con la dimensión Autorregulación académica de la Escala de Procrastinación Académica (EPA). La confiabilidad por consistencia interna para las dimensiones de la EME fue: metas de aprendizaje (ω = .90); metas de logro (ω = .88) y metas de refuerzo social (ω = .88). Se concluye que, la EME cuenta con apropiadas evidencias de validez y confiabilidad en la muestra de estudio.
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Duan, Yuan-Feng, Ru Zhang, Chuan-Zhi Dong, Yao-Zhi Luo, Siu Wing Or, Yang Zhao, and Ke-Qing Fan. "Development of Elasto-Magneto-Electric (EME) Sensor for In-Service Cable Force Monitoring." International Journal of Structural Stability and Dynamics 16, no. 04 (March 28, 2016): 1640016. http://dx.doi.org/10.1142/s0219455416400162.
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Stress/force monitoring of in-service steel structures is challenging but crucial to the evaluation of structural safety. A smart elasto-magneto-electric (EME) sensor was recently proposed by the authors for stress monitoring of steel components not only with the superiorities of the traditional elasto-magnetic (EM) sensors such as noncontact monitoring, actual-stress measurement, low cost, corrosion resistance and long expected service-life, but also with higher sensitivity, faster response and higher signal-to-noise ratio (SNR). In this paper, the application of the developed EME sensory system on the cable force monitoring of the Second Jiaojiang Bridge in China is presented. Full-scale experiment, factory calibration and in situ verification for engineering applications were successively carried out, which verify that the EME sensor is feasible and reliable to monitor the in-service cable force as a nondestructive testing (NDT) tool. Long-term on-line monitoring of the cable forces is in progress and the typical monitoring data over 7 months are presented and discussed. It is demonstrated that the proposed EME sensor is feasible for the in-service force monitoring of steel cables and that the EME sensory technology is suitable for developing the stable and reliable long-term monitoring system for steel structures.
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Moreira, Leonardo M. C., Karen M. Cardoso, Ary E. Aboud-Dutra, Camile M. Ferrão, and Gilberto S. Gazêta. "Frequency of Equine Monocytic Ehrlichiosis (EME) in Brazil." Pesquisa Veterinária Brasileira 33, no. 6 (June 2013): 697–99. http://dx.doi.org/10.1590/s0100-736x2013000600001.
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From a cross-sectional observational study with convenience samples, 347 blood samples from horses were collected from different physiographic regions, as follows: Santa Catarina Plateau (Santa Catarina State - SC), Médio Paraíba do Sul (São Paulo State - SP and Rio de Janeiro State RJ), Mountainous and Metropolitan regions (Rio de Janeiro State - RJ). Samples were tested for the presence of antibodies (IgG) anti Neorickettsia risticii by indirect immunofluorescence assay (IFA). The frequency obtained in this study corroborates with the ones obtained in the U.S.A., which refers to endemic regions. Fisher's exact test showed significant differences in the number of positive animals between regions, indicating that the probability of an animal becoming infected varies depending on the area. The CI 95% revealed no association between infection and geopolitical space. Moreover, Odds ratio test showed differences of an animal getting infected in different regions. This event could be influenced by the type of treatment used in each area, as the seasonal frequency of injury or even potential vectors. Therefore, there are seropositive animals for N. risticii in the studied areas, suggesting that this agent may be circulating in those regions. Future studies mainly based on molecular analyzes are needed to confirm these serological findings.
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Farber, Daniel. "Unpacking EME Homer: Cost, Proportionality, and Emissions Reductions." Michigan Journal of Environmental & Administrative Law, no. 4.2 (2015): 213. http://dx.doi.org/10.36640/mjeal.4.2.unpacking.
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Interstate air pollution can prevent even the most diligent downwind state from attaining the air quality levels required by federal law. Allocating responsibility for emissions cuts when multiple upwind states contribute to downwind air quality violations presents a particularly difficult problem. Justice Ginsburg’s opinion for the Court in EPA v. EME Homer City Generator, L.P., gives EPA broad discretion to craft regulatory solutions for this problem. Although the specific statutory provision at issue was deceptively simple, the underlying problem was especially complex because of the large number of states involved. Indeed, neither the majority opinion nor the dissent seems to have fully grasped how allocation would work even in some of the simplified numerical examples discussed by the justices. Although the specific question before the Court is now settled, the Court’s holding has continuing ramifications. It will shape further development of EPA’s ongoing efforts to deal with interstate pollution, but it also has broader implications for the role of cost under federal pollution laws. In addition, the decision may have significant implications regarding EPA’s flexibility in mandating state plans to reduce carbon emissions under sections 111(d) and 115 of the Clean Air Act.
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Greenslade, Thomas B. "The EME Boyle’s law and absolute zero apparatus." Physics Teacher 29, no. 2 (February 1991): 116–17. http://dx.doi.org/10.1119/1.2343238.
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Meng, Ke, Jiang Guo, Wei Chai, and Hongyan Wu. "Research on EME of real-time monitoring system." IOP Conference Series: Earth and Environmental Science 108 (January 2018): 052003. http://dx.doi.org/10.1088/1755-1315/108/5/052003.
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Bao, Francielli, Marco Antonio de Assis, and Arnildo Pott. "APPLICABILITY OF SEED BANK ASSESSMENT METHODS IN WETLANDS: ADVANTAGES AND DISADVANTAGES." Oecologia Australis 25, no. 01 (March 15, 2021): 22–33. http://dx.doi.org/10.4257/oeco.2021.2501.03.
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The soil seed bank is the primary source of regeneration in wetlands and has different assessment methods that vary according to the objective of the study. We evaluated the seed bank composition using three methods: seedlings emergence (EME), seedlings emergence with submersion trays in water (SUB) and screening and counting seeds (COU), and finally, we evaluated the applicability of COU to assess seed predation. The abundance and species richness were evaluated for two years at the end of the flood and dry seasons, in the Brazilian Pantanal. The abundance and species richness differed significantly between methods and seasons. The COU method showed the highest richness (84) and abundance (95.023) followed by EME and SUB. The SUB method reflected only the aquatic community. In the flood season, EME and COU methods showed similar species composition. There were no differences between COU and EME + SUB. The main advantage of COU method was the possibility to assess the seed predation, and we detected that Croton trinitatis had 32% of predated seeds. We consider that wetland ecosystems can be sampled by both methods COU and EME + SUB; however, the complete method that can be used for different purposes is COU, also, must be considered the infrastructure and objective of each study.
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GODA, THOMAS, and JAN PRIEWE. "Determinants of real exchange rate movements in 15 emerging market economies." Brazilian Journal of Political Economy 40, no. 2 (June 2020): 214–37. http://dx.doi.org/10.1590/0101-31572020-3072.
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ABSTRACT Previous work has established that an appreciation of the real effective exchange rate (REER) contributes to premature deindustrialization, less productive investment and dependence on commodity booms and busts in emerging markets economies (EME). From the literature, it is less clear, however, what the most important drivers for the cyclical REER movements in EME are. The aim of this study is to provide empirical evidence about the determinants of the REER movements of 15 emerging markets during the last two decades, using statistical analysis and a dynamic panel fixed effects model approach. Our analysis shows that although “commodity” and “industrial” EME are heterogeneous, REER volatility tends to be higher among the former. EME that had more stable REER fared better than those that had a depreciating or appreciating trend (with the notable exception of China). As theoretically expected, commodity prices are an important structural driver of REER movements in “commodity EME”. Moreover, the results confirm the existence of the Harrod-Balassa-Samuelson effect, and show the importance of financial inflows. Further, the interventions of central banks were partially successful to avoid more substantial appreciations (depreciations). Finally, we find that lower country risk and, at least in some periods, growing broad money in OECD countries has led to REER appreciations in our sample countries.
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Stankosky, Michael, and Ellen F. Mac Garrigle. "Validating Enterprise Management Engineering Through the Use of Knowledge Capital Assessments." Journal of Information & Knowledge Management 05, no. 02 (June 2006): 129–42. http://dx.doi.org/10.1142/s0219649206001384.
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This is the first in a series of studies intended to validate the efficacy of the Enterprise Management Engineering© (EME) approach, a more flexible variation of the usual systems engineering (SE) approach, to KM systems implementation. The study used large US publicly-traded non-financial firms due to the need for public financial data. Subject organisations were assessed using a measure of intangible valuation developed by Professor Baruch Lev of NYU called Knowledge Capital Earnings© (KCE). These organisations were surveyed on the 18 points of the EME approach, and the EME results were then compared against each other and against each organisation's KC scores. The data show that companies with high KCE also implement most if not all of the 18 steps within the EME construct and demonstrate that a quantifiable correlation exists between the EME approach and successful KM implementation. Now that there is a correlation, work can begin on investigating causative factors (which factors in the systems development produce MORE value for a company — and which ones have we overlooked altogether?) and on modifying the model to address the results of the survey. This in turn should contribute to the slim body of objective knowledge on the design, deployment, and measurement of KM systems.
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Yu, Jiangping, Mingju E, Wei Sun, Wei Liang, Haitao Wang, and Anders Pape Møller. "Differently sized cuckoos pose different threats to hosts." Current Zoology 66, no. 3 (October 8, 2019): 247–53. http://dx.doi.org/10.1093/cz/zoz049.
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Abstract Hole-nesting tits Parus spp. have been classified as “unsuitable” hosts for cuckoo parasitism because cuckoos cannot enter a cavity if the entrance is too small. However, Chinese tits could reject alien eggs and egg ejection rate increased with the local diversity of parasitic cuckoo species. Antiparasitic behavior among Chinese tits may have evolved due to greater size variation among sympatric cuckoo species. This raises the question of whether differently sized parasitic cuckoos pose different threats to Chinese tits. A green-backed tit Parus monticolus population that is sympatric with Asian emerald cuckoo Chrysococcyx maculatus (eme-cuckoo, small-sized parasite) and common cuckoo Cuculus canorus (com-cuckoo, large-sized parasite), and a cinereous tit P. cinereus population that is only sympatric with com-cuckoo were chosen as study organisms. We observed behavioral response and recorded alarm calls of the 2 tit species to eme-cuckoo, com-cuckoo, chipmunk Tamias sibiricus (a nest predator) and dove Streptopelia orientalis (a harmless control), and subsequently played back alarm calls to conspecific incubating females. In dummy experiments, both tit species performed intense response behavior to chipmunk, but rarely responded strongly to the 3 avian species. In playback experiments, both tit species responded strongly to conspecific chipmunk alarm calls, but rarely responded to dove alarm calls. The intensity of response of incubating female green-backed tits to eme-cuckoo and com-cuckoo alarm calls were similar to that of chipmunk alarm calls, while the intensity to eme-cuckoo alarm calls was higher than the intensity to dove alarm calls which was similar to that of com-cuckoo alarm calls. In contrast, few female cinereous tits responded to eme-cuckoo and com-cuckoo alarm calls. These findings indicated that the threat level of eme-cuckoo was slightly greater than that of com-cuckoo for sympatric green-backed tits, but not for allopatric cinereous tits.
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Stepins, Deniss, Dhruv Deveshkumar Shah, Aleksandrs Sokolovs, and Janis Zakis. "An Improved Spread-Spectrum Technique for Reduction of Electromagnetic Emissions of Wireless Power Transfer Systems." Electronics 11, no. 17 (August 30, 2022): 2733. http://dx.doi.org/10.3390/electronics11172733.
Full textAbstract:
The application of conventional spread spectrum techniques for conducted electromagnetic emission (EME) reduction in inductive-resonant wireless power transfer (WPT) systems may not reduce conducted EME enough due to specific frequency characteristics of the resonant systems and it can lead to some “adverse effects”, mainly in terms of decreased efficiency. Therefore, in this paper, an improved spread spectrum approach, multi-switching frequency and multi-duty cycle (MFMD) technique, is proposed. The proposed approach can give a considerably better conducted EME reduction along with a better efficiency than the conventional spread spectrum techniques based on a multi-switching frequency scheme. In the proposed approach, the inductive-resonant WPT system can operate at multiple switching frequencies (e.g., three different frequencies) and for a part of a control signal with a specific switching frequency, there is a specific duty cycle. The technique can be implemented in a simple way using an inexpensive 8-bit microcontroller. The effect of the MFMD scheme on the conducted EME and efficiency of the WPT system is studied in detail. The WPT system conducted EME and the efficiency are studied experimentally with a designed laboratory prototype. The performance characteristics of the WPT system with the MFMD scheme are compared to those with the multi-switching frequency scheme and without the spread spectrum. The WPT system with the proposed spread spectrum technique has a better performance than that with the conventional spread spectrum technique.
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Dall’Amico, Mauro, and Joseph Egger. "Empirical Master Equations. Part II: Application to Stratospheric QBO, Solar Cycle, and Northern Annular Mode." Journal of the Atmospheric Sciences 64, no. 9 (September 1, 2007): 2996–3015. http://dx.doi.org/10.1175/jas3993.1.
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Abstract Time series of stratospheric climate variables are used to derive master equations in the discretized phase space spanned by three variables. The empirical master equation (EME) predicts the probability density function (PDF) in this phase space. The numerical properties of EMEs have been investigated in the first part of this paper using synthetic time series. In this part of the paper, the time series consist of normalized and deseasonalized daily and zonally averaged meteorologically relevant quantities obtained from the 40-yr ECMWF Re-Analysis (ERA-40) and observations. One EME reproduces the climatological features of the quasi-biennial oscillation (QBO) of stratospheric equatorial zonal wind including the probabilistic character of transitions between phases. Also, the Arctic stratosphere at 10 hPa is about 2 K warmer during the easterly phase of the QBO than during the westerly phase. Another EME including a time series of the solar radio flux at 10.7 cm hints that the relationship between the QBO and the temperature in the Arctic stratosphere is shifted toward warmer (colder) states by about 1 K during periods of high (low) solar activity. Finally, an EME is derived from time series of variables highly correlated with the northern annular mode (NAM). The EME shows that NAM anomalies in the middle stratosphere propagate into the lower stratosphere and then into the lower troposphere with a time scale of about two and four weeks, respectively. The influence of strong tropospheric NAM anomalies is confined to the lower stratosphere.
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Fagundes, Walter J., Sérgio Dantas, Bruno Veys, Nádia Buisset, Nicola Reyns, and Serge Blond. "Estimulação da Medula Espinhal para o Tratamento da Dor Neuropática Crônica." JBNC - JORNAL BRASILEIRO DE NEUROCIRURGIA 21, no. 4 (March 20, 2018): 215–19. http://dx.doi.org/10.22290/jbnc.v21i4.931.
Full textAbstract:
Objetivos: A estimulação da medula espinhal (EME) tem sido considerada eficaz no tratamento da dor neuropática crônica. O presente estudo tem como objetivo avaliar os resultados em longo prazo da EME, em pacientes portadores de ciatalgia neuropática crônica, considerando suas indicações, os mecanismos de ação e as complicações. Casuística: Foram estudados 308 pacientes portadores de ciatalgia neuropática crônica rebelde ao tratamento clínico submetidos à EME, no Serviço de Neurocirurgia do Centro Hospitalar Regional e Universitário de Lille, França, no período de 16 anos. O tempo médio de seguimento foi de 7,8 anos. Resultados: A maioria dos pacientes (95%) apresentou um alívio da dorciática. Em 49% o resultado foi considerado excelente (alívio completo da dor), em 28% bom (alívio superior a 70%), em 18,4% moderado (alívio entre 25% e 70%) e ruim em 4,6% (sem melhora da dor), de acordo com escala visual analógica. Não foram observadas complicações graves. Conclusão: Conclui-se que a EME é um método útil no tratamento da ciatalgia crônica de origem neuropática, com bons resultados a longo prazo, em pacientes resistentes a outras modalidades terapêuticas. Trata-se de terapia não-destrutiva, ajustável e reversível.
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O. Adeyemi, Hezekiah, Taofeek A. Yusuf, and Martins O. Osifeko. "Forecasting Unsafe Level of Work Stations with Injuries Frequency Measurement Criterion: A Fuzzy Logic Approach." International Journal of Engineering Technology and Sciences 5, no. 1 (May 23, 2018): 109–19. http://dx.doi.org/10.15282/ijets.v5i1.2830.
Full textAbstract:
In this study, a fuzzy-based expert system called Accident Prone Workstations Prediction Expert System (APWAPES) was developed to forecast unsafe level of work stations. APWAPES used fuzzy set theory to make decisions based on the “Total-hours-worked” and “Injury-Count” as inputs and “Workstation-unsafe-ratings” as the output. Data collected from subjects in 20 workstations were run with APWAPES. The results were compared with an Existing Mathematical Model (EME). The validation result showed that there was a strong positive relationship between the EME and the developed APWAPES with a correlation coefficient of 0.710. The t-test result for mean difference showed that EME had a statistically significantly higher level of rating (0.60 ± 0.30, SEM=0.004) compared to APWAPES (0.50 ± 0.02, SEM= 0.007), t(38) = 1.613, p = 0.115. With a significance level of 0.001 at 95% confidence, the APWAPES and the EME predicted values were not significantly different. The study developed an expert system, APWAPES, which can find its applications in any work place where hazards occur and capable of helping managers of industries, to measure work places and/or activities disposed to accidents.
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Zhu, Wenting, Xiangzi Leng, Huiming Li, Ruibin Zhang, Rui Ye, and Xin Qian. "Application of the QUAL2K model to design an ecological purification scheme for treated effluent of a wastewater treatment plant." Water Science and Technology 72, no. 12 (August 26, 2015): 2194–200. http://dx.doi.org/10.2166/wst.2015.439.
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Treated effluent from wastewater treatment plants has become an important source of excess nutrients causing eutrophication in water. In this study, an ecological purification method was used to further treat eutrophic water. A three-season ecological purification scheme which comprised an emergent plant (Eme.), a submerged plant (Sub.) and a novel biological rope (Bio.), was designed for the treated effluent canal of a wastewater treatment plant. The removal parameters determined from the experiment were input into a QUAL2K model to simulate downstream water quality of the treated effluent canal. Respective removal rates of total nitrogen and total phosphorus of the Eme., Sub. and Bio. were 32.48–37.33% and 31.63–39.86% in summer, 14.12–33.61% and 17.74–23.80% in autumn, and 14.13–18.03% and 10.05–12.75% in winter, with 1-day reaction time. Optimal combinations for summer, autumn/spring, and winter are Eme. + Bio., Eme. + Bio. + Sub., and Sub. + Bio., respectively. Simulated load reduction rates of total nitrogen and total phosphorus for the treated effluent canal were 42.64–78.40% and 30.98–78.29%, respectively, year round with 2.5-day reaction time. This study provides an efficient evaluation and design method for ecological purification engineering.
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Dall’Amico, Mauro, and Joseph Egger. "Empirical Master Equations. Part I: Numerical Properties." Journal of the Atmospheric Sciences 64, no. 9 (September 1, 2007): 2981–95. http://dx.doi.org/10.1175/jas3992.1.
Full textAbstract:
Abstract In the atmospheric sciences, master equations are mainly used in a discrete time approximation to provide forecasts of the probability density function in a discretized phase space spanned by a few climate variables. The coefficients of an empirical master equation (EME) are estimated from the relative frequencies of transitions observed in time series of the variables. The quality of an EME depends on, among other things, the length and time resolution of the available time series. In this part of the paper, these dependencies are studied on the basis of data from the three-component Lorenz model with additional white noise forcing. Thus, time series of almost any length and time resolution can be generated easily, and probability density forecasts can be compared directly with the evolution of an ensemble of points. Useful results are obtained by partitioning the phase space into several hundred cells of equal grid size. The authors find that a threshold length of the time series exists beyond which improvements in the performance of the EME are hard to detect. It is even more surprising that the performance deteriorates with reduction of the time step. This is due to an increase in numerical diffusion. The choice of the dimensionality and the selection of the variables of the EME are very important. The results of this part of the paper provide useful guidelines for any application of the EME in the atmospheric sciences and elsewhere. The second part of the paper illustrates the usefulness of these guidelines through applications to stratospheric dynamics.