Journal articles: 'TMFF'

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Christmann, Mara Keli, Talita Marin Scherer, Carla Aparecida Cielo, and Carla Franco Hoffmann. "Tempo máximo de fonação de futuros profissonais da voz." Revista CEFAC 15, no. 3 (April 16, 2013): 622–30. http://dx.doi.org/10.1590/s1516-18462013005000019.

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OBJETIVO: verificar os tempos máximos de fonação (TMF) de vogais e correlacionar os resultados das relações entre /e/ áfono e sonoro (ė/e), s/z e TMF obtido/previsto (TMFO/TMFP), conforme o sexo, em futuros profissionais da voz adultos com voz normal. MÉTODO: seleção por meio de avaliação vocal pela escala RASATI; coleta dos TMF /a, i, u, e, s, z/, do /e/ áfono (/ė/) e da capacidade vital; cálculo das relações s/z, ė/e e TMFO/TMFP de 50 mulheres (média 21,42 anos) e 12 homens (média 24,25 anos). RESULTADOS: em ambos os sexos, os TMF estiveram significantemente dentro da normalidade ou com valores diminuídos, sugerindo equilíbrio ou escape aéreo à fonação. Relação s/z significantemente normal, relação ė/e significantemente aumentada quando comparada aos resultados diminuídos e, relação TMFO/TMFP sem diferenças significantes. Resultados que apontaram equilíbrio ou hipercontração de pregas vocais à fonação. Correlação positiva significante apenas entre as relações ė/e e s/z mostrando que crescem proporcionalmente e que a relação TMFO/TMFP não se correlaciona com elas. CONCLUSÃO: os futuros profissionais da voz adultos e com voz normal estudados em sua maioria apresentaram os TMF de vogais dentro da normalidade ou diminuídos, a relação s/z normal; a relação ė/e com valores aumentados quando comparada ao grupo com valores diminuídos, sugerindo a presença de incoordenação pneumofonoarticulatória. A correlação positiva entre as relações ė/e e s/z sugere que ambas fornecem resultados compatíveis entre si, não ocorrendo o mesmo com a relação TMFO/TMFP.

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Li, Xiaozhou, Marcus A. Neumann, and Jacco van de Streek. "The application of tailor-made force fields and molecular dynamics for NMR crystallography: a case study of free base cocaine." IUCrJ 4, no. 2 (February 15, 2017): 175–84. http://dx.doi.org/10.1107/s2052252517001415.

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Motional averaging has been proven to be significant in predicting the chemical shifts inab initiosolid-state NMR calculations, and the applicability of motional averaging with molecular dynamics has been shown to depend on the accuracy of the molecular mechanical force field. The performance of a fully automatically generated tailor-made force field (TMFF) for the dynamic aspects of NMR crystallography is evaluated and compared with existing benchmarks, including static dispersion-corrected density functional theory calculations and the COMPASS force field. The crystal structure of free base cocaine is used as an example. The results reveal that, even though the TMFF outperforms the COMPASS force field for representing the energies and conformations of predicted structures, it does not give significant improvement in the accuracy of NMR calculations. Further studies should direct more attention to anisotropic chemical shifts and development of the method of solid-state NMR calculations.

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van de Streek, Jacco, Kristoffer Johansson, and Xiaozhou Li. "Computational Pharmaceutical Materials Science: Beyond Static Structures." Acta Crystallographica Section A Foundations and Advances 70, a1 (August 5, 2014): C1541. http://dx.doi.org/10.1107/s2053273314084587.

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The five Crystal-Structure Prediction (CSP) Blind Tests have shown that molecular-mechanics force fields are not accurate enough for crystal structure prediction[1]. The first--and only--method to successfully predict all four target crystal structures of one of the CSP Blind Tests was dispersion-corrected Density Functional Theory (DFT-D), and this is what we use for our work. However, quantum-mechanical methods (such as DFT-D), are too slow to allow simulations that include the effects of time and temperature, certainly for the size of molecules that are common in pharmaceutical industry. Including the effects of time and temperature therefore still requires molecular dynamics (MD) with less accurate force fields. In order to combine the accuracy of the successful DFT-D method with the speed of a force field to enable molecular dynamics, our group uses Tailor-Made Force Fields (TMFFs) as described by Neumann[2]. In Neumann's TMFF approach, the force field for each chemical compound of interest is parameterised from scratch against reference data from DFT-D calculations; in other words, the TMFF is fitted to mimic the DFT-D energy potential. Parameterising a dedicated force field for each individual compound requires an investment of several weeks, but has the advantage that the resulting force field is more accurate than a transferable force field. Combining crystal-structure prediction with DFT-D followed by molecular dynamics with a tailor-made force field allows us to calculate e.g. the temperature-dependent unit-cell expansion of each predicted polymorph, as well as possible temperature-dependent disorder. This is relevant for example when comparing the calculated X-ray powder diffraction patterns of the predicted crystal structures against experimental data.

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Li, Min, Fengjiao Liu, and John Z. H. Zhang. "TMFF—A Two-Bead Multipole Force Field for Coarse-Grained Molecular Dynamics Simulation of Protein." Journal of Chemical Theory and Computation 12, no. 12 (November 9, 2016): 6147–56. http://dx.doi.org/10.1021/acs.jctc.6b00769.

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Ueda, Y., T. Koyama, K. Yamaguchi, M. Shikimori, H. Fukuda, and K. Hashimoto. "Functional reconstruction of swallowing by free flap transfer combined with temporal myo-fascia flap (TMFF)." International Journal of Oral and Maxillofacial Surgery 26 (January 1997): 165. http://dx.doi.org/10.1016/s0901-5027(97)81338-0.

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De Oliveira, Júlia Barreto Bastos. "A influência da drenagem torácica intercostal fechada com selo d’água na respiração e voz, em sujeitos hospitalizados com doenças pleuropulmonares." Fisioterapia Brasil 6, no. 2 (March 18, 2018): 101. http://dx.doi.org/10.33233/fb.v6i2.1970.

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Este estudo objetivou verificar a influência do dreno torácico intercostal fechado com selo d’água na respiração e voz, em sujeitos portadores de doenças pleuropulmonares. Foram avaliados 18 sujeitos com drenagem torácica intercostal fechada com selo d’água de ambos os sexos, com faixa etária de 18 a 74 anos de idade. Foram realizadas duas avaliações envolvendo voz e respiração, sendo a primeira, 48 horas após a colocação do dreno e, a segunda, logo após a retirada do dreno, incluindo anamnese respiratória e fonoaudiológica; medidas de cirtometria do tórax; propedêutica pulmonar; testes de medidas de Pimax e Pemax; testes de função pulmonar, avaliando o VCI e CVF; testes pneumofonoarticulatórios (TMF, CFS, CFC, TMFP e TMFO) e questionário sobre o comportamento da respiração e voz. O comportamento dos dois grupos se assemelhou, em termos de medida-resumo, com médias da cirtometria com dreno SAIF 91,58 cm, SAEF 89,69 cm, XIF 93,17 cm, XEF 91,11cm, BIF 88,17cm e o BEF 86,08 cm. As médias da pressão respiratória máxima foram: Pimax 71,11 cm H2O, Pemax 61,94 cm H2O. Quanto às médias da função pulmonar: VCI 427,78ml, CVFNNO 2169,44 ml e CVFNO 2316,11ml. Sem dreno: SAIF 92,08 cm, SAEF 89,08 cm, XIF 92,86 cm, XEF 90,36 cm, BIF 88,67 cm e BEF 85,36 cm e as médias da pressão respiratória máxima foram: Pimax 82,72 cm H2O, Pemax 73,56cm H2O. Quanto às médias da função pulmonar: VCIArtigo original440,17 ml, CVFNNO 2587,22 ml e CVFNO 2762,22 ml. Na avaliação da voz com dreno, a média da CFS foi de 209,58, CFC de 207,05, TMFP 12,15s, TMFO/TMFP de 1,03s e, sem o dreno, a média da CFS foi de 134,15, CFC de 95,42, TMFP 2,81s, TMFO/TMFP de 0,54s. Concluiu-se que o dreno não exerce influência quanto às medidas da mecânica respiratória; apesar dos sujeitos permanecerem com as mesmas alterações pulmonares, não houve diferença quanto ao tempo pneumofonoarticulatório; o nível de sensação de desempenho respiratório e vocal aumentou com o uso do dreno. Palavras-chave: respiração, voz, drenagem torácica, doenças pleurais.

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Li, Min, and John Z. H. Zhang. "Two-bead polarizable water models combined with a two-bead multipole force field (TMFF) for coarse-grained simulation of proteins." Physical Chemistry Chemical Physics 19, no. 10 (2017): 7410–19. http://dx.doi.org/10.1039/c6cp07958j.

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Esmail, Rosmin, Heather M. Hanson, Jayna Holroyd-Leduc, Daniel J. Niven, and Fiona M. Clement. "Identification of knowledge translation theories, models or frameworks suitable for health technology reassessment: a survey of international experts." BMJ Open 11, no. 6 (June 2021): e042251. http://dx.doi.org/10.1136/bmjopen-2020-042251.

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ObjectiveHealth technology reassessment (HTR) is a field focused on managing a technology throughout its life cycle for optimal use. The process results in one of four possible recommendations: increase use, decrease use, no change or complete withdrawal of the technology. However, implementation of these recommendations has been challenging. This paper explores knowledge translation (KT) theories, models and frameworks (TMFs) and their suitability for implementation of HTR recommendations.DesignCross-sectional survey.ParticipantsPurposeful sampling of international KT and HTR experts was administered between January and March 2019.MethodsSixteen full-spectrum KT TMFs were rated by the experts as ‘yes’, ‘partially yes’ or ‘no’ on six criteria: familiarity, logical consistency/plausibility, degree of specificity, accessibility, ease of use and HTR suitability. Consensus was determined as a rating of ≥70% responding ‘yes’. Descriptive statistics and manifest content analysis were conducted on open-ended comments.ResultsEleven HTR and 11 KT experts from Canada, USA, UK, Australia, Germany, Spain, Italy and Sweden participated. Of the 16 KT TMFs, none received ≥70% rating. When ratings of ‘yes’ and ‘partially yes’ were combined, the Consolidated Framework for Implementation Research was considered the most suitable KT TMF by both KT and HTR experts (86%). One additional KT TMF was selected by KT experts: Knowledge to Action framework. HTR experts selected two additional KT TMFs: Co-KT framework and Plan-Do-Study-Act cycle. Experts identified three key characteristics of a KT TMF that may be important to consider: practicality, guidance on implementation and KT TMF adaptability.ConclusionsDespite not reaching an overall ≥70% rating on any of the KT TMFs, experts identified four KT TMFs suitable for HTR. Users may apply these KT TMFs in the implementation of HTR recommendations. In addition, KT TMF characteristics relevant to the field of HTR need to be explored further.

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Crausbay, Shelley D., and Patrick H. Martin. "Natural disturbance, vegetation patterns and ecological dynamics in tropical montane forests." Journal of Tropical Ecology 32, no. 5 (July 14, 2016): 384–403. http://dx.doi.org/10.1017/s0266467416000328.

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Abstract:Disturbance is a central process in forest dynamics, yet the role of natural disturbance in tropical montane forests (TMFs) has not been systematically addressed. We posit that disturbance in TMFs has a wider role than commonly acknowledged and its effects are distinctive because: (1) TMFs often have very low rates of productivity due to low resources, and so recovery from disturbance may be slow, (2) montane forests have marked environmental heterogeneity which interacts with disturbance, (3) a large percentage of TMFs are regularly exposed to high energy windstorms and landslides, and (4) TMFs contain a biogeographically rich mixture of tree species with divergent evolutionary histories that interact differently with different disturbance types. We reviewed the literature on natural disturbance in TMFs and found 119 peer-reviewed papers which met our search criteria. Our review shows that disturbance is widespread in TMFs with pronounced effects on structure, function, composition and dynamics. Disturbance is also evident in the ecology of TMF biota with clear examples of plant life-history traits adapted to disturbance, including disturbance-triggered germination, treefall gap strategies and resprouting ability. Important aspects of TMF disturbances are stochastic and site-specific, but there are broad patterns in disturbance type, frequency and severity along latitudinal, altitudinal and environmental gradients. Compared with the lowland tropics, TMF disturbances are more spatially structured, TMFs experience more disturbance types in a given area due to environmental complexity, and TMFs are much more prone to small-scale yet severe landslides as well the large and potentially catastrophic disturbances of cyclones, forest die-back and fire. On the whole, natural disturbance should assume a larger role in models of ecosystem processes and vegetation patterns in TMFs. An improved understanding of what creates variation in disturbance severity and post-disturbance recovery rates, how composition and diversity feedback on disturbance type and likelihood, and how global change will alter these dynamics are important priorities in future TMF ecology research.

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Li, Xiaozhou, Kristoffer Johansson, Andrew Bond, and Jacco van de Streek. "Crystal structure prediction of indomethacin." Acta Crystallographica Section A Foundations and Advances 70, a1 (August 5, 2014): C1540. http://dx.doi.org/10.1107/s2053273314084599.

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Indomethacin is a non-steroidal anti-inflammatory and antipyretic agent. Because different packing arrangements of the same drug can greatly affect drug properties such as colours, solubility, stability, melting point, dissolution rate and so forth, it is important to predict its polymorphs. The computational prediction of the stable form will reduce undesirable risks in both clinical trials and manufacturing. Reported polymorphs of indomethacin include α, β, γ, δ, ε, η and ζ [1], of which only the thermodynamically stable form γ and the metastable form α are determined. Density functional theory with dispersion-correction (DFT-D) has been used extensively to study molecular crystal structures[2]. It gives better results with a compromise between the computational cost and accuracy towards the reproduction of molecular crystal structures. In the fourth blind test of crystal structure prediction in 2007, the DFT-D method gave a very successful result that predicted all four structures correctly. Rather than using transferable force fields, a dedicated tailor-made force field (TMFF) parameterised by DFT-D calculations[3] is used for every chemical compound. The force field is used to generate a set of crystal structures and delimit a candidate window for energy ranking. The powder diffraction patterns of predicted polymorphs are calculated to compare with experimental data.

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Lima do Vale, Marjorie Rafaela, Anna Farmer, Geoff D. C. Ball, Rebecca Gokiert, Katerina Maximova, and Jessica Thorlakson. "Implementation of Healthy Eating Interventions in Center-Based Childcare: The Selection, Application, and Reporting of Theories, Models, and Frameworks." American Journal of Health Promotion 34, no. 4 (January 27, 2020): 402–17. http://dx.doi.org/10.1177/0890117119895951.

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Purpose: To explore the selection, use, and reporting of theories, models, and frameworks (TMFs) in implementation studies that promoted healthy eating in center-based childcare. Data Source: We searched 11 databases for articles published between January 1990 and October 2018. We also conducted a hand search of studies and consulted subject matter experts. Study Inclusion and Exclusion Criteria: We included studies in center-based settings for preschoolers that addressed the development, delivery, or evaluation of interventions or implementation strategies related to healthy eating and related subjects and that explicitly used TMF. Exclusion criteria include not peer reviewed or abstracts and not in English, French, German, and Korean. Data Extraction: The first author extracted the data using extraction forms. A second reviewer verified data extraction. Data Synthesis: Direct content analysis and narrative synthesis. Results: We identified 8222 references. We retained 38 studies. Study designs included quasi-experimental, randomized controlled trials, surveys, case studies, and others. The criteria used most often for selecting TMFs were description of a change process (n = 12; 23%) or process guidance (n = 8; 15%). Theories, models, and frameworks used targeted different socioecological levels and purposes. The application of TMF constructs (e.g., factors, steps, outcomes) was reported 69% (n = 34) of times. Conclusion: Reliance on TMFs focused on individual-level, poor TMF selection, and application and reporting for the development of implementation strategies could limit TMF utility.

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Spracklen, D. V., and R. Righelato. "Tropical montane forests are a larger than expected global carbon store." Biogeosciences 11, no. 10 (May 23, 2014): 2741–54. http://dx.doi.org/10.5194/bg-11-2741-2014.

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Abstract. Tropical montane forests (TMFs) are recognized for the provision of hydrological services and the protection of biodiversity, but their role in carbon storage is not well understood. We synthesized published observations (n = 94) of above-ground biomass (AGB) from forest inventory plots in TMFs (defined here as forests between 23.5° N and 23.5° S with elevations ≥ 1000 m a.s.l.). We found that mean (median) AGB in TMFs is 271 (254) t per hectare of land surface. We demonstrate that AGB declines moderately with both elevation and slope angle but that TMFs store substantial amounts of biomass, both at high elevations (up to 3500 m) and on steep slopes (slope angles of up to 40°). We combined remotely sensed data sets of forest cover with high resolution data of elevation to show that 75% of the global planimetric (horizontal) area of TMF are on steep slopes (slope angles greater than 27°). We used our remote sensed data sets to demonstrate that this prevalence of steep slopes results in the global land surface area of TMF (1.22 million km2) being 40% greater than the planimetric area that is the usual basis for reporting global land surface areas and remotely sensed data. Our study suggests that TMFs are likely to be a greater store of carbon than previously thought, highlighting the need for conservation of the remaining montane forests.

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Sherman, Ruth E., Timothy J. Fahey, Patrick H. Martin, and John J. Battles. "Patterns of growth, recruitment, mortality and biomass across an altitudinal gradient in a neotropical montane forest, Dominican Republic." Journal of Tropical Ecology 28, no. 5 (August 29, 2012): 483–95. http://dx.doi.org/10.1017/s0266467412000478.

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Abstract:We examined stand dynamics and biomass along an altitudinal gradient in a tropical montane forest (TMF) in the disturbance-prone Cordillera Central, Dominican Republic. We tested the general hypothesis that chronic disturbance by fire, wind, floods and landslides results in a landscape of relatively low above-ground biomass with high rates of mortality, recruitment and growth as compared with other TMFs. We also expected above-ground biomass to decrease with altitude in part due to declines in growth and increased biomass losses from mortality with increasing altitude. We resurveyed 75 0.1-ha plots distributed across the altitudinal gradient (1100–3100 m asl) 8 y after they were established. Our observations provided mixed evidence on these hypotheses. Turnover rates were high (> 2% y−1) and significantly greater on windward slopes. Above-ground biomass (mean = 306 Mg ha−1, 95% CI = 193–456 Mg ha−1) was highly variable but comparable to other TMFs. Altitudinal patterns of declining biomass and above-ground growth matched observations for other TMFs, whereas mortality and recruitment exhibited no altitudinal trends. More quantitative studies in a variety of TMF settings are needed to better understand how natural disturbance, complex environmental gradients and species dynamics interact to regulate carbon storage, sequestration and turnover across altitudinal gradients in TMFs.

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Spracklen, D. V., and R. Righelato. "Tropical montane forests are a larger than expected global carbon store." Biogeosciences Discussions 10, no. 12 (December 3, 2013): 18893–924. http://dx.doi.org/10.5194/bgd-10-18893-2013.

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Abstract. Tropical montane forests (TMFs) are recognised for the provision of hydrological services and the protection of biodiversity, but their role in carbon storage is not well understood. We synthesized published observations (n=89) of above-ground biomass (AGB) from forest inventory plots in TMFs (defined here as forests between 23.5° N and 23.5° S with elevations ≥ 1000 m a.s.l.). We found that mean (median) AGB in TMF is 257 (239) t per hectare of Earth's surface. We demonstrate that AGB declines moderately with both elevation and slope angle but that TMF store substantial amounts of biomass, both at high elevations (up to 3500 m) and on steep slopes (slope angles of up to 40°). We combined remote sensed datasets of forest cover with high resolution data of elevation to show that seventy five percent of the planimetric global area of TMF are on steep slopes (slope angles greater than 27°). We used our remote sensed datasets to demonstrate that this prevalence of steep slopes results in the global land-surface area of TMF (1.22 million km2) being 40% greater than the planimetric (horizontal) area that is the usual basis for reporting global land surface areas and remotely sensed data. Our study suggests that TMF are likely to be a greater store of carbon than previously thought, highlighting the need for conservation of remaining montane forests.

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Imsya, A., Y. Windusari, and R. Riswandi. "The ammoniation of total mixed fiber with mineral organic supplementation in ration to increase beef cattle production." Journal of the Indonesian Tropical Animal Agriculture 45, no. 1 (December 4, 2019): 28–36. http://dx.doi.org/10.14710/jitaa.45.1.28-36.

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The objective of this study was to evaluate the level of organic minerals and total mixed fiber ammoniation (TMFA) as basal feed on the performance of beef cattle. This study used the In Vivo technique and the experimental method using t-test. The t-test compares the best supplementation result on in vitro research and control treatment, each treatment got6 replications. The treatments tested were P1: 60% TMF ammoniation + 15% swamp legume without supplementation of organic minerals P2: 60% TMF ammoniation + 1.5 x Organic macrominerals (Ca, P, and S) NRC (2000) + 15% Swamp Legumes. The parameters measured in the in-vivo technique were nutrient digestibility consisting of dry and organic matters, crude protein, crude fiber, NDF, and ADF. The animal performance: ration and dry matter consumption, body weight gain and ration efficiency. The results showed that supplementation of minerals in rations with TMFA as basal feed had a significant effect (P<0.05) on nutrient digestibility (dry matter, organic matter, crude fiber, NDF, and ADF) and animal performance. The conclusion of this study was supplementation of organic macrominerals 1.5 x (Ca, P, and S) NRC (2000) in a ration with TMF ammoniation as basal feed can improve the beef cattle performance.

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Dalling, James W., Katherine Heineman, Grizelle González, and Rebecca Ostertag. "Geographic, environmental and biotic sources of variation in the nutrient relations of tropical montane forests." Journal of Tropical Ecology 32, no. 5 (November 20, 2015): 368–83. http://dx.doi.org/10.1017/s0266467415000619.

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Abstract:Tropical montane forests (TMF) are associated with a widely observed suite of characteristics encompassing forest structure, plant traits and biogeochemistry. With respect to nutrient relations, montane forests are characterized by slow decomposition of organic matter, high investment in below-ground biomass and poor litter quality, relative to tropical lowland forests. However, within TMF there is considerable variation in substrate age, parent material, disturbance and species composition. Here we emphasize that many TMFs are likely to be co-limited by multiple nutrients, and that feedback among soil properties, species traits, microbial communities and environmental conditions drive forest productivity and soil carbon storage. To date, studies of the biogeochemistry of montane forests have been restricted to a few, mostly neotropical, sites and focused mainly on trees while ignoring mycorrhizas, epiphytes and microbial community structure. Incorporating the geographic, environmental and biotic variability in TMF will lead to a greater recognition of plant–soil feedbacks that are critical to understanding constraints on productivity, both under present conditions and under future climate, nitrogen-deposition and land-use scenarios.

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Nascimento, Michele, Maurício Kosminsky, Viviane Colares, and Jair Carneiro Leão. "Translation and Cross-cultural Adaptation of Traditional Masculinity and Femininity Scale (TMF-s) for use with Brazilian University Students." Journal of Health Sciences 21, no. 3 (September 24, 2019): 260. http://dx.doi.org/10.17921/2447-8938.2019v21n3p260-263.

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AbstractMen and women seem to have different susceptibilities to disease and dissimilar responses to pain. These differences are not well understood. Understanding those variations between men and women from the perspective of gender identity can contribute to disparities observed in the health field. Since 1980, efforts have been made to develop instruments that can help to categorize individuals according to their own gender perception. One of these, recently developed, is the Traditional Masculinity and Femininity Scale (TMFs). The advantage of this scale is to allow the gender self-identification without the need for attributes. The aim of this study is to present the process of cross cultural adaptation of the TMFs for applicability in studies in the Brazilian population. The cross-cultural adaptation followed the steps: 1) authorization by the authors; 2) initial translation into Portuguese; 3) cultural, conceptual, experimental and idiomatic adaptation to the target population; 4) retroversion; 5) assessment by a revision committee; and 6) pretest. The equivalence of measurement, corresponding to the psychometric properties to a gold standard, is in progress. In conclusion, the original version of the TMF scale, having been translated, culturally adapted, and validated into Brazilian Portuguese has proven to be a reliable instrument that is easy to use, and can be used in both clinical practice and clinical trials in the evaluation of gender identity.Keywords: Gender Identity. Transcultural Adaptation. Surveys and Questionnaires.ResumoHomens e mulheres parecem ter diferentes suscetibilidades às doenças e respostas diferentes à dor. Essas disparidades não são bem compreendidas. A compreensão dessas variações entre homens e mulheres na perspectiva da identidade de gênero pode contribuir para as disparidades observadas no campo da saúde. Desde a década de 1980, esforços têm sido feitos para desenvolver instrumentos que possam ajudar a categorizar os indivíduos de acordo com sua própria percepção de gênero. Uma delas, recentemente desenvolvida, é a Escala de Masculinidade e Feminilidade Tradicionais (TMFs). A vantagem desta escala é permitir a auto identificação do gênero sem a necessidade de atributos. O objetivo deste estudo é apresentar o processo de adaptação transcultural dos TMFs para aplicabilidade em estudos na população brasileira. A adaptação transcultural seguiu os passos: 1) autorização dos autores; 2) tradução inicial para o português; 3) adaptação cultural, conceitual, experimental e idiomática à população-alvo; 4) retroversão; 5) avaliação por um comitê de revisão; e 6) pré-teste. A equivalência de medida, correspondente às propriedades psicométricas de um padrão ouro, está em andamento. Em conclusão, a versão original da escala TMF, traduzida, adaptada culturalmente e validada para o português brasileiro, mostrou-se um instrumento confiável e de fácil utilização, podendo ser utilizada tanto na prática clínica quanto nas pesquisas para a avaliação da identidade de gênero.Palavras-chave: Identidade de Gênero. Adaptação Transcultural. Inquéritos e Questionários.

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Lange, K., and P. J. Van Geel. "Physical and numerical modelling of a dual-porosity fractured rock surrounding an in-pit uranium tailings management facility." Canadian Geotechnical Journal 48, no. 3 (March 2011): 365–74. http://dx.doi.org/10.1139/t10-080.

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In-pit tailings management facilities (TMFs) have been used to dispose of uranium mine tailings in northern Saskatchewan. The pervious surround method can be employed to reduce groundwater flow through the tailings, and thereby moderate the rate of flux of radioactive and metal contamination that could enter the local groundwater via advection. A laboratory-scale analogue of an in-pit TMF was constructed to evaluate the impacts of a dual-porosity representation of the host rock on the effectiveness of the pervious surround concept in reducing peak concentrations and mass flux at a downgradient receptor. This work complemented the work of West et al. (2003) in which similar laboratory-scale experiments were conducted, simulating the host rock using the equivalent porous media and discrete fracture approaches. The experiments were adequately simulated using SWIFT II, a dual-porosity flow and transport model. Finally, to illustrate the impact of a dual-porosity representation of a fractured host rock on a contaminant plume from a TMF in the field, a field-scale scenario was modelled. The simulations illustrate the impact of diffusion into the host rock matrix on the simulated peak concentrations and the time for the peak concentrations to reach a downgradient receptor.

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Balslev, Henrik, L. S. Hamilton, J. O. Juvik, and F. N. Scatena. "What Are TMCF?" Journal of Biogeography 21, no. 5 (September 1994): 562. http://dx.doi.org/10.2307/2845659.

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Borovsky, Dov, Kato Deckers, Anne Catherine Vanhove, Maud Verstraete, Pierre Rougé, Robert G. Shatters, and Charles A. Powell. "Cloning and Characterization of Aedes aegypti Trypsin Modulating Oostatic Factor (TMOF) Gut Receptor." Biomolecules 11, no. 7 (June 23, 2021): 934. http://dx.doi.org/10.3390/biom11070934.

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Trypsin Modulating Oostatic Factor (TMOF) receptor was solubilized from the guts of female Ae. Aegypti and cross linked to His6-TMOF and purified by Ni affinity chromatography. SDS PAGE identified two protein bands (45 and 61 kDa). The bands were cut digested and analyzed using MS/MS identifying a protein sequence (1306 amino acids) in the genome of Ae. aegypti. The mRNA of the receptor was extracted, the cDNA sequenced and cloned into pTAC-MAT-2. E. coli SbmA− was transformed with the recombinant plasmid and the receptor was expressed in the inner membrane of the bacterial cell. The binding kinetics of TMOF-FITC was then followed showing that the cloned receptor exhibits high affinity to TMOF (KD = 113.7 ± 18 nM ± SEM and Bmax = 28.7 ± 1.8 pmol ± SEM). Incubation of TMOF-FITC with E. coli cells that express the receptor show that the receptor binds TMOF and imports it into the bacterial cells, indicating that in mosquitoes the receptor imports TMOF into the gut epithelial cells. A 3D modeling of the receptor indicates that the receptor has ATP binding sites and TMOF transport into recombinant E. coli cells is inhibited with ATPase inhibitors Na Arsenate and Na Azide.

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Shen, Yi. "Gap Detection and Temporal Modulation Transfer Function as Behavioral Estimates of Auditory Temporal Acuity Using Band-Limited Stimuli in Young and Older Adults." Journal of Speech, Language, and Hearing Research 57, no. 6 (December 2014): 2280–92. http://dx.doi.org/10.1044/2014_jslhr-h-13-0276.

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Purpose Gap detection and the temporal modulation transfer function (TMTF) are 2 common methods to obtain behavioral estimates of auditory temporal acuity. However, the agreement between the 2 measures is not clear. This study compares results from these 2 methods and their dependencies on listener age and hearing status. Method Gap detection thresholds and the parameters that describe the TMTF (sensitivity and cutoff frequency) were estimated for young and older listeners who were naive to the experimental tasks. Stimuli were 800-Hz-wide noises with upper frequency limits of 2400 Hz, presented at 85 dB SPL. A 2-track procedure (Shen & Richards, 2013) was used for the efficient estimation of the TMTF. Results No significant correlation was found between gap detection threshold and the sensitivity or the cutoff frequency of the TMTF. No significant effect of age and hearing loss on either the gap detection threshold or the TMTF cutoff frequency was found, while the TMTF sensitivity improved with increasing hearing threshold and worsened with increasing age. Conclusion Estimates of temporal acuity using gap detection and TMTF paradigms do not seem to provide a consistent description of the effects of listener age and hearing status on temporal envelope processing.

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Culver, Dominic Leon, and Paul VanKoughnett. "On the K(1)-local homotopy of $$\mathrm {tmf}\wedge \mathrm {tmf}$$." Journal of Homotopy and Related Structures 16, no. 3 (July 20, 2021): 367–426. http://dx.doi.org/10.1007/s40062-021-00283-7.

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AbstractAs a step towards understanding the $$\mathrm {tmf}$$ tmf -based Adams spectral sequence, we compute the K(1)-local homotopy of $$\mathrm {tmf}\wedge \mathrm {tmf}$$ tmf ∧ tmf , using a small presentation of $$L_{K(1)}\mathrm {tmf}$$ L K ( 1 ) tmf due to Hopkins. We also describe the K(1)-local $$\mathrm {tmf}$$ tmf -based Adams spectral sequence.

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Cielo, Carla Aparecida, Joziane Padilha de Moraes Lima, Bruna Franciele da Trindade Gonçalves, and Mara Keli Christmann. "Relações entre /s/ e /z/ e entre /e/ e /e/ não vozeado ou áfono." Revista CEFAC 15, no. 5 (June 11, 2013): 1308–15. http://dx.doi.org/10.1590/s1516-18462013005000026.

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OBJETIVO: correlacionar os tempos máximos de fonação (TMF) e as relações entre os fricativos /s/ e /z/ (s/z) e entre /e/ não vozeado e a vogal /e/ (ė/e) de mulheres sem afecções laríngeas. MÉTODO: participaram 60 mulheres com média de 21,56 anos de idade. Coletaram-se os TMF/ė/, /e/, /s/ e /z/ e calcularam-se a relação s/z e a relação ė/e, com padrão de normalidade para as relações de 0,8 a 1,2; para os TMF/s/ e /z/, entre 15,57 e 34,17s; para o TMF/ė/, entre 16 a 18s; e para o TMF/e/, entre 14,04 e 26,96s. Testes de Lilliefords, Spearmann, Binomial e Mann-Whitney com nível de significância de 5%. RESULTADOS: correlação positiva entre TMF/s/ e TMF/ė/, TMF/z/ e TMF/e/, TMF/s/ e TMF/z/, e TMF/ė/ e TMF/e/. Não houve correlação entre as relações s/z e ė/e, nem diferenças entre a relação ė/e, enquanto a relação s/z foi significantemente normal. TMF/ė/ e TMF/e/ significantemente diminuídos; TMF/s/ e TMF/z/ significantemente normais. TMF/ė/ significantemente menor do que TMF/s/; TMF/e/ significantemente menor do que TMF/z/. CONCLUSÃO: os fonemas /s/ e /z/ isolados e sua relação ficaram dentro da normalidade e as relações s/z e ė/e não apresentaram correlação. Os TMF/ė/ e TMF/e/ mostraram-se diminuídos em relação à normalidade. O TMF/ė/ foi menor do que TMF/s/ e o TMF/e/ foi menor do que TMF/z/, possivelmente devido ao modo articulatório dos fricativos ter aumentado o tempo de emissão, independentemente do controle do nível glótico e respiratório.

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Psaltou, Savvina, Stylianos Stylianou, Manasis Mitrakas, and Anastasios Zouboulis. "Heterogeneous Catalytic Ozonation of p-Chlorobenzoic Acid in Aqueous Solution by FeMnOOH and PET." Separations 5, no. 3 (August 20, 2018): 42. http://dx.doi.org/10.3390/separations5030042.

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The oxidation of p-chlorobenzoic acid (p-CBA), used as a typical-model refractory organic compound, in aqueous solutions during the heterogeneous catalytic ozonation treatment process by applying the hydrophilic tetravalent manganese feroxyhyte (TMFx), as well as modified hydrophobic TMFx and the polyethylene terephthalate (PET) as solid (powdered) catalysts was examined in this study. TMFx was hydrophobically modified by using trichloromethylsilane (TriClMS) solutions in toluene at the concentration range 10–1000 mg/L. TMFx catalysts were characterized by the application of scanning electron microscopy (SEM), as well as by Brunauer-Emmet-Teller (BET) and surface charge density determinations. TMFx catalyst, which was modified by 50 mg/L trichloromethylsilane (TriClMS) solution (TMFx-50), was found to present the higher adsorption capacity of studied organic compound (250 μg p-CBA/g) when compared with all the other investigated catalysts, which in turn resulted in the higher removal of p-CBA (>99%) by the subsequent application of ozonation, as compared to hydrophilic TMFx (96.5%) and to single ozonation (96%) applications. PET-catalyst concentration in the range 0.5–10 g/L led to almost total removal of p-CBA within 15 min of reaction/oxidation time at pH 7. Conclusively, the experimental results for both catalysts indicated that hydrophobicity and adsorption capacity are crucial steps for the process of heterogeneous catalytic ozonation of refractory organic compounds.

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Asbjornsen, H., N. Velázquez-Rosas, R. García-Soriano, and C. Gallardo-Hernández. "Deep ground fires cause massive above- and below-ground biomass losses in tropical montane cloud forests in Oaxaca, Mexico." Journal of Tropical Ecology 21, no. 4 (June 27, 2005): 427–34. http://dx.doi.org/10.1017/s0266467405002373.

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Although fire is occurring at greater frequencies and spatial scales in the moist tropics, few studies have examined the ecological impacts of fire in tropical montane cloud forest (TMCF). This study, conducted in the Chimalapas region of Oaxaca, Mexico, documents changes in live tree biomass, live fine-root biomass, and fallen and standing dead wood 4 y following deep ground fires occurring in TMCF during the 1997–98 El Niño Southern Oscillation event. Forests growing on two different substrates (metamorphic and sedimentary) and having three different statures (mean canopy heights: 20–30 m, 15–20 m and 4–6 m) were assessed within six paired plots established on adjacent burned and unburned forest sites. Total live tree biomass was 82% and 88% lower for burned TMCF growing on metamorphic and sedimentary substrates, respectively, compared with unburned TMCF. Nearly 100% of the living biomass was killed in elfin TMCF located on exposed sedimentary limestone at the highest elevations. Live fine-root biomass in the upper organic soil horizon of burned TMCF sites was 49% lower on metamorphic substrates and 77% lower on sedimentary substrates compared with unburned sites. The amount of total dead wood was 3- to 14-fold greater in burned forests compared with unburned forests. These results suggest that first-time fires in relatively undisturbed TMCF can cause dramatic changes in live above- and below-ground biomass at levels greatly exceeding values reported for most lowland tropical rain forests. These patterns may be attributed to the slower decomposition rates and thick organic soils typical of TMCF, combined with the relatively fast drainage associated with steep topography and, in some locations, sedimentary limestone-derived substrates.

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Wang, Rongqiao, Bin Zhang, Dianyin Hu, Kanghe Jiang, Jianxing Mao, and Fulei Jing. "Cyclic viscoplastic deformation modeling of a nickel-based single crystal superalloy with [001] orientation." MATEC Web of Conferences 165 (2018): 19005. http://dx.doi.org/10.1051/matecconf/201816519005.

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Accurate simulations of cyclic viscoplastic deformation behaviors of single crystal superalloys which are widely used for the manufacture of gas turbine blades are important for the effective design and safety assessment in practice. In this context, based on the in-phase thermomechanical fatigue (IP TMF) and out-of-phase thermomechanical fatigue (OP TMF) experiments of the nickel-based single crystal superalloy with [001] orientation, a modified constitutive model has been developed to describe the deformation behavior under thermomechanical loadings. The TMF experiment results indicate that stable hysteresis loops with remarkable ratcheting appear in both IP TMF and OP TMF. And it’s worth noticing that the ratcheting growth direction of IP TMF and OP TMF are opposite. By introducing a Schmid stress rate related term to the back stress evolution equation, the slip-based Walker’s constitutive model is modified in this study. And the simulation results of the deformation behavior reveal good agreement with the experiments under different IP TMF and OP TMF conditions.

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Qiang, Xingzi, Rui Xue, and Yanbo Zhu. "Two-Dimensional Monte Carlo Filter for a Non-Gaussian Environment." Electronics 10, no. 12 (June 9, 2021): 1385. http://dx.doi.org/10.3390/electronics10121385.

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In a non-Gaussian environment, the accuracy of a Kalman filter might be reduced. In this paper, a two- dimensional Monte Carlo Filter is proposed to overcome the challenge of the non-Gaussian environment for filtering. The two-dimensional Monte Carlo (TMC) method is first proposed to improve the efficacy of the sampling. Then, the TMC filter (TMCF) algorithm is proposed to solve the non-Gaussian filter problem based on the TMC. In the TMCF, particles are deployed in the confidence interval uniformly in terms of the sampling interval, and their weights are calculated based on Bayesian inference. Then, the posterior distribution is described more accurately with less particles and their weights. Different from the PF, the TMCF completes the transfer of the distribution using a series of calculations of weights and uses particles to occupy the state space in the confidence interval. Numerical simulations demonstrated that, the accuracy of the TMCF approximates the Kalman filter (KF) (the error is about 10−6) in a two-dimensional linear/ Gaussian environment. In a two-dimensional linear/non-Gaussian system, the accuracy of the TMCF is improved by 0.01, and the computation time reduced to 0.067 s from 0.20 s, compared with the particle filter.

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Kim, You Jin, Shinya Konishi, Yuichiro Hayasaka, Ryo Ota, Ryosuke Tomozawa, and Katsuhisa Tanaka. "Magnetic properties of epitaxial TmFe2O4 thin films with an anomalous interfacial structure." Journal of Materials Chemistry C 8, no. 34 (2020): 11704–14. http://dx.doi.org/10.1039/d0tc01367f.

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Epitaxial TmFe₂O₄ thin film with self-assembled interface structure was grown on yttria-stabilized zirconia substrate. TmFe₂O₄ phase itself shows glassy behavior and the interface leads to the exchange bias effect.

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29

Khavse, R., N. Deshmukh, N. Manikandan, J. Chaudhary, and D. Kaushik. "Statistical Analysis of Temperature and Rainfall Trend in Raipur District of Chhattisgarh." Current World Environment 10, no. 1 (April 30, 2015): 305–12. http://dx.doi.org/10.12944/cwe.10.1.38.

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The temperature and rainfall trends are analysed for meteorological data of Labandi station, Raipur district in Chhattisgarh, India over approximately last three decades stretching between years 1971 to 2013. The long–term change in temperature and rainfall has been assessed by linear trend analysis. The increasing trend in mean maximum temperature (MMAX) and total mean rainfall (TMRF) is confirmed by Mann-Kendall trend test. It is observed that in Raipur district of Chhattisgarh region, the December MMAX temperature has increased by 1.1008 0C and annual MMAX temperature has increased by 0.0256 0C whereas the highest decrease in TMRF occurs is observed in August @ 1.4385 mm per year (data base 1971-2013) and annual TMRF quantity has increased by 8.084 mm during the same period. Annual MMAX temperature has shown increasing trend which is statistically non- significant at 5% level of significance whereas annual TMRF has shown increasing trend which is statistically non- significant at 5% level of significance.

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Stewart, G. A. "Quadrupole interaction at169Tm in orthorhombic TmF3." Hyperfine Interactions 53, no. 1-4 (July 1990): 413–18. http://dx.doi.org/10.1007/bf02101076.

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31

Esquinazi, Pablo D. "Topological Matter and Flat Bands (TMFB)." Journal of Low Temperature Physics 191, no. 1-2 (January 29, 2018): 1–3. http://dx.doi.org/10.1007/s10909-018-1860-0.

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32

Hart, K. A., and S. Mall. "Thermomechanical Fatigue Behavior of a Quasi-lsotropic SCS-6/Ti-15-3 Metal Matrix Composite." Journal of Engineering Materials and Technology 117, no. 1 (January 1, 1995): 109–17. http://dx.doi.org/10.1115/1.2804361.

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The response of a quasi-isotropic laminate of metal matrix composite, SCS-6/Ti-15-3 in a thermomechanical fatigue (TMF) environment was investigated. To achieve this, three sets of fatigue tests were conducted: 1) in-phase TMF (IP-TMF), 2) out-of-phase TMF (OP-TMF), and 3) isothermal fatigue (IF). The fatigue response was dependent on the test condition and the maximum stress level during cycling. The IF, IP-TMF, and OP-TMF conditions yielded shortest fatigue life at higher, intermediate and lower stress levels, respectively. Examination of the failure mode through the variation of strain or modulus during cycling, and post-mortem microscopic evaluation revealed that it was dependent on the fatigue condition and applied stress level. Higher stresses, mostly with IP-TMF and IF conditions, produced a primarily fiber dominated failure. Lower stresses, mostly with the OP-TMF condition, produced a matrix dominated failure. Also, an empirical model based on the observed damage mechanisms was developed to represent the fatigue lives for the three conditions examined here.

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Jo, Gi-Hyeon, Jeong-Taek Lee, and Lee Baek. "Development of a Power-tiller TMF Mixer." Journal of Biosystems Engineering 28, no. 2 (April 1, 2003): 97–106. http://dx.doi.org/10.5307/jbe.2003.28.2.097.

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34

Banks, W. A., A. J. Kastin, A. J. Fischman, D. H. Coy, and S. L. Strauss. "Carrier-mediated transport of enkephalins and N-Tyr-MIF-1 across blood-brain barrier." American Journal of Physiology-Endocrinology and Metabolism 251, no. 4 (October 1, 1986): E477—E482. http://dx.doi.org/10.1152/ajpendo.1986.251.4.e477.

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The saturable, carrier-mediated system capable of the brain-to-blood transport of small peptides with an N-terminal tyrosine was characterized. The rate of disappearance of intraventricularly injected iodinated peptide in the presence or absence of the inhibitor being tested was determined from formulas based on the residual radioactivity in the brains of mice after decapitation. The injection of 100 nmol/mouse of unlabeled N-Tyr-MIF-1 (TMIF) increased the half-time disappearance of 125I-TMIF (ITMIF) in the central nervous system (CNS) from 14.1 to 88.7 min (P less than 0.00005). Technetium, a substance transported out of the brain by the same system that transports iodine, was used as a control; the half-time disappearance of technetium pertechnetate was unaffected by unlabeled TMIF. With two related but distinct techniques, the maximum transport rate out of the CNS (Vmax) for TMIF was 0.266 nmol X g of brain per min (method 1) and 0.297 nmol X g-1 X min-1 (method 2), while the amount of unlabeled material needed to achieve 50% of Vmax (Km) was 15.2 nmol/g (method 1) and 15.1 nmol/g (method 2). The lack of effect of the tyrosinated fragments of TMIF as inhibitors indicates that TMIF is being transported in intact form. The Vmax for methionine enkephalin determined with labeled and unlabeled methionine enkephalin was 0.630 nmol X g-1 X min-1 and the Km was 24.95 nmol/g. Studies with the metabolic modulators furosemide, acetozolamide, reserpine, ouabain, and theophylline suggest that the system is sodium dependent and probably independent of ATPase.(ABSTRACT TRUNCATED AT 250 WORDS)

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BRENDEL, T., E. AFFELDT, J. HAMMER, and C. RUMMEL. "Temperature gradients in TMF specimens. Measurement and influence on TMF life." International Journal of Fatigue 30, no. 2 (February 2008): 234–40. http://dx.doi.org/10.1016/j.ijfatigue.2007.01.039.

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36

Lee, Keum Oh, Seong Gu Hong, Sam Son Yoon, and Soon Bok Lee. "Thermomechanical Fatigue Behavior of the Ferritic Stainless Steel." Key Engineering Materials 297-300 (November 2005): 1146–51. http://dx.doi.org/10.4028/www.scientific.net/kem.297-300.1146.

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A thermomechanical fatigue (TMF) life prediction model for ferritic stainless steel, used in exhaust manifold of automobile, was developed based on Tomkins’ two-dimensional crack propagation model. Low-cycle fatigue (LCF) and TMF tests were carried out in a wide temperature range from 200 to 650°C. New concept of plastic strain range on TMF was proposed. Effective stress concept was introduced to get a reasonable stress range in TMF hysteresis loop. The proposed model predicted TMF life within 2X scatter band. The experimental results reveal that TMF life is about 10% of isothermal fatigue life.

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Leidermark, Daniel, Mikael Segersäll, Johan Moverare, and Kjell Simonsson. "Modelling of TMF Crack Initiation in Smooth Single-Crystal Superalloy Specimens." Advanced Materials Research 891-892 (March 2014): 1283–88. http://dx.doi.org/10.4028/www.scientific.net/amr.891-892.1283.

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In this paper the TMF crack initiation behaviour of the single-crystal nickel-base superalloyMD2 is investigated and modelled. TMF tests were performed in both IP and OP for varying mechanicalstrain ranges in the [001] crystallographic direction until TMF crack initiation was obtained. Acrystal plasticity-creep model was used in conjunction with a critical-plane approach, to evaluate thenumber of cycles to TMF crack initiation. The critical-plane model was evaluated and calibrated ata stable TMF cycle, where the effect of the stress relaxation had attenuated. This calibrated criticalplanemodel is able to describe the TMF crack initiation, taking tension/compression asymmetry aswell as stress relaxation anisotropy into account, with good correlation to the real fatigue behaviour.

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Imsya, A., Yuanita Windusari, and Riswandi. "Optimization of Ensilage Total Mixed Fiber (TMF) with Additive and Incubation Periods Differences." E3S Web of Conferences 68 (2018): 01014. http://dx.doi.org/10.1051/e3sconf/20186801014.

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This study aims to evaluate the effect of different types of additives and incubation periods for optimization of Total Mixed Fiber (TMF) silage. The method used in this study is randomized experimental design. The factorial pattern consists of 2 factors : additive type and incubation time. The treatment consists of Factor A type of additive: A1 = TMF ensilage with 7g sodium diacetate (SDA) / kg TMF A2 = TMF ensilage with 10x105 cfu lactic acid bacteria / kg TMF. Factor B incubation time B1 = ensilage with 21 days incubation time, B2 = ensilage with 30 days incubation time and B3 = ensiles with 45 days incubation time. The parameters measured are evaluation of nutritional value based on proximate analysis and Van soest. The result of this research indicates that there is an interaction between the types of additives and the duration of incubation in the ensilage optimization of total mixed fiber (TMF). In this study, it is found that the use of sodium diacetate gives the best results in the optimization of TMF silage until the incubation time of 45 days. The contents of TMF silage nutritional value with sodium diacetate (SDA) 7g/kg TMF as additive and 45 days incubation time are 83.79% dry matter, 86.62% organic matter, 12.65% crude protein, 17% crude fiber, 8.07% crude fat, 68.65% NDF, 58.78% ADF, 56% cellulose 34, 9.87% hemicellulose and 7.56% lignin

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Miglioranzi, Shanna Lara, Carla Aparecida Cielo, and Márcia do Amaral Siqueira. "Capacidade vital e tempos máximos de fonação de /e/ áfono e de /s/ em mulheres adultas." Revista CEFAC 14, no. 1 (June 10, 2011): 97–103. http://dx.doi.org/10.1590/s1516-18462011005000036.

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OBJETIVO: verificar a capacidade vital (CV) e os valores de tempo máximo de fonação (TMF) do /e/ áfono (representado por /ė/) e do /s/ de mulheres adultas, estabelecendo o perfil da amostra e comparando-o com o padrão de normalidade proposto. MÉTODO: coleta do maior valor de três medidas de CV, de TMF/ė/ e de TMF/s/; e da estatura auto-referida de 48 mulheres entre 18 e 44 anos de idade, normais de acordo com avaliações otorrinolaringológica, miofuncional, vocal, respiratória e auditiva. Aplicou-se análise estatística descritiva, teste de normalidade de Shapiro-Wilk, e cálculo do coeficiente de variação; adotou-se o nível de significância de 5%. RESULTADOS: valores médios de CV de 3.206ml, de TMF/s/ de 17,49s e de estatura de 1,65m, com distribuição normal; TMF/ė/ sem distribuição normal e média de 10,43s significantemente menor do que os valores da literatura (P<0.001). No entanto, o TMF/ė/ apresentou valores de média e mediana bastante próximos (10,43s e 10,25s) e coeficiente de variação muito similar ao TMF/s/. CONCLUSÃO: para o grupo de analisado, encontraram-se valores médios de CV e de TMF/s/ compatíveis com os referidos pela literatura. Os valores médios de TMF/ė/ se apresentaram abaixo do proposto pela única referência teórica existente, evidenciando a necessidade de mais pesquisas como esta - que investiguem em campo a medida de TMF/ė/ - a fim de estabelecer a faixa normalidade conforme o sexo e obter mais dados científicos sobre o que parece ser a medida mais indicada para a avaliação isolada do controle respiratório durante a emissão.

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Bailey, Scott M., and Nicolas Ricka. "On the Tate spectrum of $$\mathrm {tmf}$$ tmf at the prime 2." Mathematische Zeitschrift 291, no. 3-4 (July 31, 2018): 821–29. http://dx.doi.org/10.1007/s00209-018-2108-z.

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41

Warren, J. R., and B. A. Cowles. "A Simplified Thermal Mechanical Fatigue (TMF) Test Method." Journal of Engineering for Gas Turbines and Power 108, no. 3 (July 1, 1986): 515–20. http://dx.doi.org/10.1115/1.3239939.

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The thermal fatigue environment of gas turbine engine airfoils is severe and is often a life-limiting mode of failure. Alloy and coating system evaluation and accurate service life predictions for advanced turbine blades and vanes are dependent upon realistic laboratory simulation of the engine service environment. Engine conditions are best simulated in the laboratory by mechanical testing capable of imposing simultaneous, independently controlled temperature and strain cycles, or thermal mechanical fatigue (TMF) tests. Historically, TMF tests are expensive and usually require computer-controlled laboratory equipment. Consequently the cost of TMF testing has been prohibitively expensive for airfoil material and coating system evaluation. A simplified, low-cost TMF test method has been developed which is useful for alloy/coating system research and screening. This method, referred to as “load-adjusted TMF” (LATMF), uses load and temperature as the primary test control parameters. Test results using the simplified TMF test method show good correlation (within a factor of two) with the full computer-automated strain control TMF test results.

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Li, Longbiao. "Damage accumulation and lifetime prediction of fiber-reinforced ceramic-matrix composites under thermomechanical fatigue loading." High Temperature Materials and Processes 39, no. 1 (November 30, 2020): 608–19. http://dx.doi.org/10.1515/htmp-2020-0092.

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AbstractIn this paper, the damage accumulation and life prediction in fiber-reinforced ceramic-matrix composites (CMCs) subjected to thermomechanical fatigue (TMF) loading are investigated. The relationships between TMF damage mechanisms, fatigue hysteresis-based damage parameters, fraction of broken fiber, and applied cycles are established. Evolution of fatigue hysteresis dissipated energy, fatigue hysteresis modulus, fatigue peak strain, fatigue broken fiber fraction versus applied cycle curves, and the fatigue life S–N curves is analyzed. Damage accumulation and fatigue life of cross-ply silicon carbide/magnesium aluminosilicate composite under in-phase (IP)- and out-of-phase (OP)-TMF and isothermal fatigue (IF) loading are predicted. Under the same fatigue peak stress, the fatigue lifetime decreases from IF loading at 566°C to IF loading at 1,093°C, IP-TMF and OP-TMF. The TMF loading significantly reduced the fatigue lifetime of CMCs.

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Okazaki, Masakazu, Satoshi Yamagishi, and Yuuki Yonaguni. "Thermo-Mechanical and Low Cycle Fatigue Failure Behavior Relevant to Temperature Regime in a TBCed Superalloy Specimen." Materials Science Forum 879 (November 2016): 2518–23. http://dx.doi.org/10.4028/www.scientific.net/msf.879.2518.

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Steady state and non-steady state thermo-mechanical fatigue failure is great concern in this work. At first steady state thermo-mechanical fatigue failure behavior was investigated using the round-bar TBC specimens, after getting basic data of mechanical properties of the bond/top coats and the substrate alloy. The failure behavior was compared with that during isothermal low cycle fatigue (LCF). Next non-steady state TMF tests were carried out in which non-steady state thermal stress was significant in the TBC specimen, compared with the properties under the steady state TMF. The experimental work clearly demonstrated that the TMF failure lives were significantly changed depending on the temperature regime during TMF and LCF. Of particular importance was found in the non-steady state TMF tests. The non-steady state TMF cycling promoted the delamination of ceramic top coat, resulting in a significant reduction in fatigue life.

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Gotsch, Sybil G., Nalini Nadkarni, and Autumn Amici. "The functional roles of epiphytes and arboreal soils in tropical montane cloud forests." Journal of Tropical Ecology 32, no. 5 (July 13, 2016): 455–68. http://dx.doi.org/10.1017/s026646741600033x.

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Abstract:Epiphytes and their associated decomposing litter and arboreal soils (herein, epiphytic material, EM) are ubiquitous features of tropical montane cloud forests (TMCF) and play important roles in ecosystem function. EM intercepts water and nutrients from the atmosphere and from intercepted host tree sources, and may contribute significant inputs of these resources to the forest floor. Despite the importance of EM in the TMCF, a systematic review of the ecosystem roles of EM has not been compiled before. We have synthesized the literature that documents functions of EM in undisturbed TMCFs and discuss how these roles may be affected by disturbances, including changes in climate and land use. The range of EM biomass and water storage in the TMCF varies greatly across sites, with different amounts associated with stand age and microclimate. EM is important as habitat and food for birds and mammals, with over 200 species of birds documented as using EM in the Neotropics. Given its sensitivity to moisture, projected shifts in cloud base heights or precipitation due to changes in climate will likely have a large impact on this community and changes in EM diversity or abundance may have cascading impacts on the ecosystem function of the TMCF.

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Kirka, Michael M., Sachin R. Shinde, Phillip W. Gravett, and Richard W. Neu. "Influence of Extremum Temperatures on TMF of a Ni-Base Superalloy." Advanced Materials Research 891-892 (March 2014): 1314–19. http://dx.doi.org/10.4028/www.scientific.net/amr.891-892.1314.

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Significantly reducing the minimum temperature while maintaining maximum temperature of thermomechanical fatigue (TMF) cycles can reduce the life even when mechanical strain ranges are similar. This applies to in-phase (IP) and out-of-phase (OP) TMF cycles. This reduction in life has generally been attributed to a combination of changes in microstructure arising from aging and increases in the cyclic inelastic strain promoted by increases in the elastic modulus as the minimum cycle temperature is reduced. TMF cycles under both IP and OP conditions were conducted with maximum cycle temperatures within the 750-950C range and with minimum cycle temperatures of either 100 or 500C. A reduction in minimum temperature was observed to promote a decrease in TMF life by as much as a factor of ten for all TMF experiments. The reduction in TMF life is primarily controlled by increases in the inelastic strain range associated with increases in the elastic modulus that arise when the minimum temperature is reduced.

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Razmyshlyaev, Alexander D., Marina V. Ahieieva, and Elena V. Lavrova. "TMF Influence on Weld Structure at the Welding of 12X18H9T." Materials Science Forum 927 (July 2018): 1–5. http://dx.doi.org/10.4028/www.scientific.net/msf.927.1.

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The transverse magnetic field (TMF) use allows to obtain follow effects: increasing the electrode melting coefficient, reducing the base metal penetration depth and grinding the weld metal structural components. The paper analyzed the existing literature data about the TMF influence on the refinement of the weld metal structure. It is experimentally shown that the alternating TMF influence of 6 Hz frequency reduces the grain size of weld metal is almost twice in comparison with the welding process without the TMF influence at submerged arc welding of plates of austenitic steel type 12X18H9T (X10CrNiTi18-9). The average grains size is 7-6 index, when welding without the TMF influence and the average grains size of the weld metal corresponds to 8 index, with separate inclusions of grains with 7 index when welding with the TMF influence. This is should increase the yield strength value of the weld metal in accordance with the data of Hall – Petch.

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Sugihardjo, Hidajat, Yudha Lesmana, and Dwi Prasetya. "Development of Ductile Truss System Using Double Small Buckling-Restrained Braces: Analytical Study." Open Civil Engineering Journal 13, no. 1 (February 28, 2019): 10–19. http://dx.doi.org/10.2174/1874149501913010010.

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Introdution: This paper proposed a Small Buckling-Restrained Brace (SBRB) for the ductile truss moment frames and is called here as the Double Braced Truss Moment Frames (DB-TMF). The braces are located at the edge of the truss girder and are only placed around the building perimeter. The braces work in pair as a weak element (structural fuses) and is expected to effectively absorb the seismic energy. The proposed DB-TMF system is an extended development of the Knee Braced Truss Moment Frames (KB-TMF). The DB-TMF system is expected to carry the whole seismic loads, while the rest of the frame is designed to carry only the gravity loads. Methods: To study the performance of the proposed DB-TMF system, non-linear finite element analysis was carried out using the DRAIN-2DX package. From the analysis with various time history records, it was found that the drift ratio of the DB-TMF system is lower than the allowed story drift. The roof-top displacement shows an asymptotic behavior. The shape of the hysteresis curve tends to have a pinching shape. However, the cumulative ductility of the proposed system satisfies the requirements as a hysteretic structure. In the event of an earthquake, only the SBRB and the chords adjacent to the column element are damaged while the rest of the structural elements remain elastic which is expected. Results and Conclusion: Based on the performance evaluation of the DB-TMF system, the DB-TMF system is suitable for moderate seismic region and has smaller dimension steel sections compared to the KB-TMF system.

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Kim, Dae Whan, Chang Hee Han, and Woo Seog Ryu. "Improvement of Thermomechanical Fatigue Life in Nitrogen Alloyed 316 Stainless Steel." Materials Science Forum 475-479 (January 2005): 1429–32. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.1429.

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Fatigue tests of type 316 and 316LN stainless steel were conducted at RT and 600ı, 0.8~1.5% strain range for low cycle fatigue (LCF), 300~600ı, 0% strain range for thermal fatigue (TF) and 300~600ı, 2% strain range, in-phase or out-of-phase for thermomechanical fatigue (TMF). LCF, TF, and TMF lives were increased but saturation stresses were decreased with the addition of nitrogen. The higher temperature was the lower TF life at a same temperature change. The minimum temperature change for TF failure was more than 100ı. TMF life was higher at inphase condition than at out-of-phase condition. Fracture mode was transgranular for LCF and outof- phase of TMF and almost transgranular and small intergranular for TF and in-phase TMF.

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Cielo, Carla Aparecida, Bruna Franciele da Trindade Gonçalves, Joziane Padilha de Moraes Lima, and Mara Keli Christmann. "Afecções laríngeas, tempos máximos de fonação e capacidade vital em mulheres com disfonia organofuncional." Revista CEFAC 14, no. 3 (November 16, 2011): 481–88. http://dx.doi.org/10.1590/s1516-18462011005000126.

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OBJETIVO: verificar e correlacionar os tempos máximos de fonação (TMF) de vogais, a capacidade vital (CV) e os tipos de afecções laríngeas (AL) de mulheres com disfonia organofuncional (DOF). MÉTODO: pesquisa retrospectiva, transversal, exploratória, não experimental, quantitativa, com banco de dados de medidas de TMF [a, i, u], de CV e de AL de mulheres com DOF; e os testes estatísticos Qui- quadrado e exato de Fisher, para verificar as diferenças entre as variáveis e suas relações e o teste binomial, a fim de verificar a significância de proporção ou percentual da análise descritiva, com p<0,05. RESULTADOS: a maioria (22; 75,86%) apresentou TMF significantemente reduzidos (p=0,0053) e sete (24,14%) TMF normais. A CV normal foi estatisticamente significante (p=0,0001) (26; 89,66%), mas três mulheres (10,34%) a apresentaram reduzida. Houve predomínio significante dos nódulos vocais (p=0,0016) (22; 75,86%), seguido de edema de Reinke (6; 20,69%) e de pólipo vocal (1; 3,45%). Dentre as 22 mulheres (75,86%) que mostraram TMF reduzidos, houve predomínio com CV normal (19; 86,36%), embora sem significância estatística (p=0,558). Das mulheres com TMF normais, todas apresentaram CV normal (7; 100%). A maioria com DOF apresentou CV normal, embora sem significância estatística (p=0,199). CONCLUSÃO: nas mulheres com DOF deste estudo, os TMF reduzidos, a CV normal e a presença de nódulos vocais foram significantes e não houve relação entre as variáveis TMF, CV e AL.

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Deng, Hong Zhang, Qiu Lin Li, Ding Guo Yang, and Wei Liu. "Effect of Alternating Traveling Magnetic Field on the Removal of Inclusions from Aluminum Melt." Advanced Materials Research 1061-1062 (December 2014): 55–60. http://dx.doi.org/10.4028/www.scientific.net/amr.1061-1062.55.

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Alternating traveling magnetic field (TMF) was introduced to agglomerate the inclusions with a density smaller than surrounding melt. Primary silicon particles precipitating from the solidification process of hypereutectic Al-Si alloy was regarded as inclusions need removing. Results indicated that alternating TMF was more effective to promote the inclusions to agglomerate into clusters than downward TMF. The effect of alternating TMF to agglomerate the inclusions increases with the increase of current and frequency. There exists the best alternating time to get the best agglomeration effect. In this study, 10s is the best alternating time.

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Journal articles on the topic 'TMFF'

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