Academic literature on the topic 'Modified Morlet transform'
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Journal articles on the topic "Modified Morlet transform"
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Le, Thai-Hoa, and Luca Caracoglia. "Rectangular prism pressure coherence by modified Morlet continuous wavelet transform." Wind and Structures 20, no. 5 (2015): 661–82. http://dx.doi.org/10.12989/was.2015.20.5.661.
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Hundzina, M. A. "Spectrum Analysis of Signal in Wolfram Mathematica System." Science & Technique 20, no. 2 (2021): 173–78. http://dx.doi.org/10.21122/2227-1031-2021-20-2-173-178.
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The purpose of this paper is a spectrum analysis of signals of various nature, construction of the signal scalogram using Morlet wavelet, modification of the scalogram to obtain a more informative graphic representation of the signal. Spectral analysis of the signal is constructed by means of the Fourier transform. A modification of the graphical representation of the result of the wavelet transform has been developed with the help of the Mathematica system. For this, a wavelet scalogram has been used as a two-dimensional representation of the original signal. A scale has been introduced on it for the value of the signal amplitude depending on the time and period of its constituent components. This graphical representation allows us to obtain additional information about the dynamic properties of the original signal. A modification of the representation of the original signal scalogram has been developed for a more complete spectrum analysis (determination of the period of the constituent components). The paper contains an example using a modified scalogram for the analysis of a signal containing two pulses, an audio signal and white noise. The basic wavelet in this case is the Morlet wavelet. A comparison of the scalogram, obtained using the built-in function, and the modified scalogram has been made in the paper. The disadvantage of the first scalogram is the impossibility of assessing the frequency of the signal; its advantage is the ability to assess the localization of the pulse. For a modified scalogram, the advantage is the estimation of the signal periodicity, and the disadvantage is the inaccuracy in determining the range of pulse localization. For spectrum analysis in Mathematica, it is recommended to use a combination of two approaches (using a standard built-in function to determine the localization of the pulse) and a modified scalogram (to determine the periods of the constituent components).
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Liu, Yi, Yi Li, Linchao Li, and Chunyan Chen. "Spatiotemporal Variability of Monthly and Annual Snow Depths in Xinjiang, China over 1961–2015 and the Potential Effects." Water 11, no. 8 (2019): 1666. http://dx.doi.org/10.3390/w11081666.
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The spatiotemporal variability of snow depth supplies important information for snow disaster prevention. The monthly and annual snow depths and weather data (from Xinjiang Meteorological Observatory) at 102 meteorological stations in Xinjiang, China over 1961–2015 were used to analyze the spatiotemporal characteristics of snow depths from different aspects. The empirical orthogonal function (EOF), the modified Mann–Kendall method, Morlet wavelet, Daubechies wavelet decomposition and cross wavelet transform were applied to investigate the trend and significance, spatial structure, periods, decomposed series and coherence of monthly and annual snow depths. The results indicated that: (1) The value of EOF first spatial mode (EOF1) of the monthly and annual snow depths in north Xinjiang were larger than south Xinjiang, indicating greater variability of snow depths in north Xinjiang. (2) The change points of annual snow depth mainly occurred during 1969–1979 and 1980–1990. The annual snow depth of most sites showed increasing trends, but with different slope magnitudes. (3) The sites that had main periods of 2–8 and 9–14 years of monthly and annual snow depths (detected by the Morlet wavelet) mainly distributed in northern Xinjiang. The sites that had main periods of 15–20 years of monthly and annual snow depths mainly distributed in southwestern Xinjiang. (4) By using the Daubechies wavelet, the decomposed annual snow depth in entire Xinjiang tended to increase. (5) Through the cross wavelet transform, annual snow depths in entire Xinjiang had good correlations with annual precipitation or relative humidity, and showed a low negative correlation with minimum temperature or sunshine hours. In conclusion, the monthly and annual snow depths had comprehensive spatiotemporal variability but had overall increasing trend during 1961–2015.
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Chaudhry, Ahsen Tahir, and Daud Akhtar. "Gene Therapy and Modification as a Therapeutic Strategy for Cancer." University of Ottawa Journal of Medicine 6, no. 1 (2016): 44–48. http://dx.doi.org/10.18192/uojm.v6i1.1564.
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Gene therapy is an exciting new field of personalized medicine, allowing for medical procedures that can target diseases such as cancer in novel ways. Technologies that involve gene transfer treatments allow for the insertion of foreign DNA into tumour cells, resulting in restored protein expression or altered function. Gene therapy can also be used as a form of immunotherapy, either by modifying cancer cells to make them better targeted by the immune system, or by modifying the body’s immune cells to make them more aggressive towards tumours. Additionally, oncolytic virotherapy uses classes of genetically modified viruses that can specifically target and interfere with tumour cells. The ongoing development of the CRISPR/Cas9 gene editing tool may also have promise in future therapeutic applications, with the tool being capable of removing cancer-causing, latent viral infections, such as HPV, from afflicted cells. Nonetheless, there are still many questions of safety, efficacy, and commercial viability which remain to be resolved with many gene therapy procedures. There is also emerging controversy over the ethical, legal, and moral implications that modifying the genetic content of human beings will have on society. These concerns must be confronted and addressed if the benefits promised by gene therapy are to be properly realized. La thérapie génétique est un nouveau domaine d’étude médicale personnalisée qui permet de cibler des maladies spécifiques comme le cancer de façon innovatrice. Cette thérapie utilise le transfert de gènes avec une insertion d’ADN étrangère dans les cellules cancéreuses dans le but de restaurer l’expression des protéines et de retrouver la fonction cellulaire. La thérapie génétique peut aussi être utilisée comme une forme d’immunothérapie, soit en modifiant les cellules cancéreuses pour qu’elles soient mieux ciblées par le système immunitaire ou en modifiant les cellules immunitaires du corps pour les rendre plus agressives envers les tumeurs. De plus, une virothérapie oncolytique utilise des virus génétiquement modifiés qui peuvent cibler spécifiquement et interférer avec des cellules cancéreuses. Le développement du système d’édition génétique CRISPR/Cas9 s’avère prometteur pour les applications thérapeutiques futures. Cet outil est capable d’enlever les infections virales latentes dans les cellules affectées qui peuvent causer le cancer, tel que l’HPV. Malgré ces découvertes, plusieurs questions importantes demeurent quant à la sécurité et à l’efficacité de leur application. Il s’agit d’un domaine controversé avec des implications éthiques, légales, et morales, car le tout implique une modification du contenu génétique humain. Ces inquiétudes doivent être adressées afin de pouvoir continuer à explorer les bienfaits de cette thérapie génétique. En poursuivant la recherche dans ce domaine, il serait possible de valider cette thérapie et optimiser ses bienfaits.
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Yadav, O. P., and G. L. Pahuja. "Time-Frequency Spectral Power Assessment of Rolling Element Bearing Faults Using Adaptive Modified Morlet Wavelet Transform." Recent Advances in Computer Science and Communications 13 (January 6, 2020). http://dx.doi.org/10.2174/2666255813666200106150735.
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Objectives: The main objectives of this manuscript are to investigate and diagnose rolling element bearing defects in its inception time. Methods: Vibration signal generated by induction motor contains series of frequency components that have rich and viable information about bearing health conditions. Recently, maximum energy concentration (MEC) measure of time-frequency spectrum has been employed to investigate the small variations in low frequency biomedical signal spectrum. In this paper, the above technique has been modified and applied to study the bearing defects of induction motor using vibration signal and it is termed as adaptive modified Morlet wavelet (AMMW) transform. Initially, this proposed method was validated on two medium frequency synthetic time series signals in terms of MEC measurement at different signal to noise ratio (SNR). Results: The simulated results have depicted that AMMW method provides excellent time-frequency localization capability over other time-frequency methods like Morlet wavelet transform, modified Morlet wavelet transform, adaptive S-transform and adaptive modified S-transform. Then this method has been applied on standard database of vibration signal to determine of interquartile power for fault detection purpose and also fault index parameter termed as has been analyzed to detect small variation in vibration signals.
Dissertations / Theses on the topic "Modified Morlet transform"
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Chalco, Jesus Pascual Mena. "Identificação de regiões codificantes de proteína através da transformada modificada de Morlet." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/45/45134/tde-05062007-115359/.
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Um tópico importante na análise de seqüências biológicas é a busca de genes, ou seja, a identificação de regiões codificantes de proteínas. Esta identificação permite a posterior procura de significado, descrição ou categorização biológica do organismo analisado. Atualmente, vários métodos combinam reconhecimento de padrões com conhecimento coletado de conjuntos de treinamento ou de comparações com banco de dados genômicos. Entretanto, a acurácia desses métodos está ainda longe do satisfatório. Novos métodos de processamento de seqüências de DNA e de identificação de genes podem ser criados através da busca por conteúdo (search-by-content). O padrão periódico de DNA em regiões codificantes de proteína, denominada periodicidade de três bases, vem sendo considerado uma propriedade dessas regiões. As técnicas de processamento digital de sinais fornecem uma base robusta para a identificação de regiões com periodicidade de três bases. Nesta dissertação, são apresentados um \\pipeline, os conceitos básicos da identificação genômica, e métodos de processamento digital de sinais utilizados para a identificação de regiões codificantes de proteínas. Introduzimos um novo método para a identificação dessas regiões, baseado na transformada proposta, denominada Transformada Modificada de Morlet. Apresentamos vários resultados experimentais obtidos a partir de seqüências de DNA sintéticas e reais. As principais contribuições do trabalho consistem no desenvolvimento de um pipeline para projetos genoma e na criação de um método de identificação de regiões codificantes onde a periodicidade de três bases seja latente. O método apresenta desempenho superior e vantagens importantes em comparação ao método tradicional baseado na transformada de Fourier de tempo reduzido.<br>An important topic in biological sequences analysis is gene finding, i.e. the identification of protein coding regions. This identification allows the posterior research for meaning, description or biological categorization of the analyzed organism. Currently, several methods combine pattern recognition with knowledge collected from training datasets or from comparison with genomic databases. Nonetheless, the accuracy of these methods is still far from satisfactory. New methods of DNA sequences processing and genes identification can be created through search-by-content such sequences. The periodic pattern of DNA in protein coding regions, called three-base periodicity, has been considered proper of coding regions. Digital signal processing techniques supply a strong basis for regions identification with three-base periodicity. In this work, we present a bioinformatics pipeline, basic concepts of the genomic identification and digital signal processing methods used for protein coding regions identification. We introduce a new method for identification of these regions, based on a newly proposed transform, called Modified Morlet Transform. We present some obtained experimental results from synthetic and real DNA sequences. The main contributions consist of the bioinformatics pipeline development for genoma projects and the creation of a method for protein coding regions identification where the three-base periodicity is latent. The method presents superior performance and important advantages in comparison to traditional method based on the short time Fourier transform.
Books on the topic "Modified Morlet transform"
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Mevorach, Irit. Modified Universalism as Customary International Law. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198782896.003.0003.
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This chapter considers how modified universalism may be elevated from a broad approach to a recognized, international legal source that can be invoked and applied in a more concrete and consistent manner across legal systems in circumstances of international insolvencies. It draws from sources of international law and, specifically, the concept of customary international law (CIL). CIL is a key legal source that fills gaps in international treaties, influences treaty regimes, and regulates in areas not covered by treaties or by other instruments or regarding countries that are not parties to a treaty or to another regime. CIL is also useful as a debiasing mechanism because its application does not require active action by all participants. The chapter suggests how modified universalism can transform into CIL. It also highlights the prominent international role of private international law and, thus, the role of actors and participants in international insolvencies as creators and guardians of international law.
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Thursfield, Rebecca, Chris Orchard, Rosanna Featherstone, and Jane C. Davies. Future treatments. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780198702948.003.0013.
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There are only a relatively limited armoury of drugs, the majority of which are aimed at downstream symptoms of cystic fibrosis. Therapies targeting the basic defect in CF as well as continued availability of more conventional drugs are required. Progress in gene therapy has been limited by the significant barriers to gene transfer of the CF lung, but the UK is hosting a large repeated dose trial of nebulized non-viral gene therapy designed around clinically meaningful outcomes. The UK CF Gene Therapy Consortium is also seeking to develop a promising modified lentiviral approach, although this is some years off. Perhaps the exciting development of recent decades has come from small molecule CFTR modulators, driven by an understanding of basic pathophysiological mechanisms. Ivacaftor is the first drug to be licensed, having proved itself highly clinically efficacious in patients with the class-3 gating mutation G551D. The trial pipeline seeks to expand indications for this and to explore the potential of Phe508del correctors. Finally, a number of anti-inflammatory and anti-infective strategies are being pursued. The emerging global problem of antibiotic resistance is leading to exciting alternatives such as biofilm disruption and bacteriophage to be explored.
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Wani, Aijaz Ashraf. What Happened to Governance in Kashmir? Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780199487608.001.0001.
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What Happened to governance in Kashmir? studies the state of Jammu and Kashmir from the perspective of an ‘exceptional state’ rather than a ‘normal state’, a periphery on the margins of the centre, and thus shifts the focus from the central grid to the local arena. It contains a mass of information on what successive governments did to manage the conflicted state of Jammu and Kashmir. It identifies the various issues and problems the state has been confronted with since the transfer of power to ‘popular’ government in 1948 to 1989. The book makes a critical study of the engagement of Indian state and its clientele governments and patronage democracies with political instability to create ‘order’ in ‘durable disorder’. With having examined the different political, military, legal, economic, social, and cultural strategies, instruments and tactics employed by the state at different times to suit changing environments, this is the first work on post 1947 Kashmir which brings together many capital dimensions of state, politics, and governance in Kashmir under one cover. While critically delineating the doings of the governments, the book does not only provide flesh and blood to some existing narratives, it also modifies and even refutes some of the long held assumptions on the basis of hitherto unexamined evidence. All in all, the book illuminates the reader about the policies of Indian state towards Kashmir and the extent the successive governments have succeeded in winning the emotional integration of Kashmiris with the Indian Union. As Sheikh Abdullah was a central figure of Kashmir politics and governance, the readers will find a refreshingly new light on his governance when he was in power, and a most influential agency to mould the public opinion when he was out of state power. Similar revealing information on the other governments are documented for the first time. Having studied each government in its own right, we find the governance characterized by change in continuity. Indeed, governance in Kashmir does not constitute one single development. In essence it is a diachronic assemblage, a composite result of different systems each with its own internal or imposed coherence moving at different speeds—some are stable, some move slowly, and some wear themselves out more quickly depending on various forces and factors. What Happened to Governance in Kashmir? is a telling tale on the state of governance in Kashmir; the policies and strategies adopted by Indian state and the successive patronage governments to grapple with the multifarious problems of the state. Kashmir is an ailing state. It is the victim of colonialism and partition, which subverted its geographical centrality with serious economic implications besides making it a permanent conflict state causing immense human and material loss. Besides being claimed by India, Pakistan, and Kashmiris, it is also a rainbow state very difficult to manage with various ethno-regional and sub-regional nationalities at cross-purposes. Added to this, it is a dependent state. This book situates governance in its total milieu and examines the governance in the framework of challenge and response continuum. It unfolds how in a conflict state like Kashmir democracy and governance is always guided and controlled. This is the first comprehensive book on the post 1947 governance in Kashmir.
Book chapters on the topic "Modified Morlet transform"
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Made Arsana, I., and Ruri Agung Wahyuono. "Nanofluid-Enhancing Shell and Tube Heat Exchanger Effectiveness with Modified Baffle Architecture." In Heat Transfer - Design, Experimentation and Applications [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96996.
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As shell and tube heat exchanger is widely employed in various field of industries, heat exchanger design remains a constant optimization challenge to improve its performance. The heat exchanger design includes not only the architectural geometry of either the shell and tube configuration or the additional baffles but also the working fluid. The baffle design including the baffle angle and the baffle distance has been understood as key parameter controlling the overall heat exchanger effectiveness. In addition, a room of improvement is open by substituting the conventional working fluid with the nanomaterials-enriched nanofluid. The nanomaterials, e.g. Al2O3, SiO2, TiO2, increases the thermal conductivity of the working fluids, and hence, the more efficient heat transfer process can be achieved. This chapter provide an insight on the performance improvement of shell and tube heat exchanger by modifying the baffle design and utilizing nanofluids.
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West-Eberhard, Mary Jane. "Cross-sexual Transfer." In Developmental Plasticity and Evolution. Oxford University Press, 2003. http://dx.doi.org/10.1093/oso/9780195122343.003.0021.
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Distinctive male and female traits are perhaps the most familiar of all divergent specializations within species. In cross-sexual transfer, discrete traits that are expressed exclusively in one sex in an ancestral species appear in the opposite sex of descendants. An example is the expression of brood care by males in a lineage where ancestral females are the exclusive caretakers of the young, as in some voles (Thomas and Birney, 1979). Despite the prominence of sexual dimorphism and sex reversals in nature, and an early explicit treatment by Darwin, discussed in the next section, cross-sexual transfer is not often recognized as a major factor in the evolution of novelty (but see, on animals, Mayr, 1963, pp. 435-439; Mayr, 1970, p. 254; on plants, Iltis, 1983). When more widely investigated, cross-sexual transfer may prove to rival heterochrony and duplication as an important source of novelties in sexually dimorphic lineages. For this reason, I devote more attention here to cross-sexual transfer than to these other, well-established general patterns of change. The male and female of a sexually dimorphic species may be so different that it is easy to forget that each individual carries most or all of the genes necessary to produce the phenotype of the opposite sex. Sex determination, like caste determination and other switches between alternative phenotypes, depends on only a few genetic loci or, in many species, environmental factors (Bull, 1983). There is considerable flexibility in sex determination and facultative reversal in some taxa. Among fish, for example, there is even a species wherein sex is determined by juvenile size at a critical age (Francis and Barlow, 1993). The sex determination mechanism, whatever its nature, leads to a series of sex-limited responses, often coordinated by hormones and not necessarily all occurring at once. A distinguishing aspect of sexually dimorphic traits in adults is that there is often a close homology between the secondary sexual traits that are differently modified in the two sexes.
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Kwitt, Roland, Peter Meerwald, and Andreas Uhl. "Blind Detection of Additive Spread-Spectrum Watermarking in the Dual-Tree Complex Wavelet Transform Domain." In Crime Prevention Technologies and Applications for Advancing Criminal Investigation. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-4666-1758-2.ch005.
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In this paper, the authors adapt two blind detector structures for additive spread-spectrum image watermarking to the host signal characteristics of the Dual-Tree Complex Wavelet Transform (DT-CWT) domain coefficients. The research is motivated by the superior perceptual characteristics of the DT-CWT and its active use in watermarking. To improve the numerous existing watermarking schemes in which the host signal is modeled by a Gaussian distribution, the authors show that the Generalized Gaussian nature of Dual-Tree detail subband statistics can be exploited for better detector performance. This paper finds that the Rao detector is more practical than the likelihood-ratio test for their detection problem. The authors experimentally investigate the robustness of the proposed detectors under JPEG and JPEG2000 attacks and assess the perceptual quality of the watermarked images. The results demonstrate that their alterations allow significantly better blind watermark detection performance in the DT-CWT domain than the widely used linear-correlation detector. As only the detection side has to be modified, the proposed methods can be easily adopted in existing DT-CWT watermarking schemes.
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Chehaitly, Mouhamad, Mohamed Tabaa, Fabrice Monteiro, Safa Saadaoui, and Abbas Dandache. "Ultra-High Performance and Low-Cost Architecture of Discrete Wavelet Transforms." In Wavelet Theory [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.94858.
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This work targets the challenging issue to produce high throughput and low-cost configurable architecture of Discrete wavelet transforms (DWT). More specifically, it proposes a new hardware architecture of the first and second generation of DWT using a modified multi-resolution tree. This approach is based on serializations and interleaving of data between different stages. The designed architecture is massively parallelized and sharing hardware between low-pass and high-pass filters in the wavelet transformation algorithm. Consequently, to process data in high speed and decrease hardware usage. The different steps of the post/pre-synthesis configurable algorithm are detailed in this paper. A modulization in VHDL at RTL level and implementation of the designed architecture on FPGA technology in a NexysVideo board (Artix 7 FPGA) are done in this work, where the performance, the configurability and the generic of our architecture are highly enhanced. The implementation results indicate that our proposed architectures provide a very high-speed data processing with low needed resources. As an example, with the parameters depth order equal 2, filter order equal 2, order quantization equal 5 and a parallel degree P = 16, we reach a bit rate around 3160 Mega samples per second with low used of logic elements ( ≈ 400) and logic registers ( ≈ 700 ).
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Peñalba, Linda M., and Dulce D. Elazegui. "Opportunities and Challenges in Socially Inclusive Innovation." In Biotechnology. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-8903-7.ch064.
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This chapter analyzes the opportunities and challenges for modern biotechnology, particularly Genetically Modified (GM) corn, in addressing social inclusion to ensure its equitable outcomes or impacts. It examines the policy environment in which GM corn was introduced and the related socioeconomic concerns. The study reveals that in the Philippines there is no institutionalized mechanism yet to determine if GM corn promotion policies and strategies conform to the social inclusion context of biotechnology. Governance of the GM technology and the interplay of the innovation system intermediaries hindered the full realization and application of social inclusion principles. Interventions to monitor socio-economic impact, knowledge transfer and interaction, and credit support delivery are needed for a more socially inclusive innovation. There should be a continuous interactive learning among various stakeholders to have evidence-based information on the technology.
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Peñalba, Linda M., and Dulce D. Elazegui. "Opportunities and Challenges in Socially Inclusive Innovation." In Quality Innovation. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-4769-5.ch025.
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This chapter analyzes the opportunities and challenges for modern biotechnology, particularly Genetically Modified (GM) corn, in addressing social inclusion to ensure its equitable outcomes or impacts. It examines the policy environment in which GM corn was introduced and the related socioeconomic concerns. The study reveals that in the Philippines there is no institutionalized mechanism yet to determine if GM corn promotion policies and strategies conform to the social inclusion context of biotechnology. Governance of the GM technology and the interplay of the innovation system intermediaries hindered the full realization and application of social inclusion principles. Interventions to monitor socio-economic impact, knowledge transfer and interaction, and credit support delivery are needed for a more socially inclusive innovation. There should be a continuous interactive learning among various stakeholders to have evidence-based information on the technology.
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Giacovazzo, Carmelo. "Charge flipping and VLD (vive la difference)." In Phasing in Crystallography. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199686995.003.0014.
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Direct methods procedures (see Chapter 6) or Patterson techniques (see Chapter 10), primarily the former, have been methods of choice for crystal structure solution of small- to medium-sized molecules from diffraction data. Over the last 30 years, several new phasing algorithms have been proposed, not requiring the use of triplet and quartet invariants, but based only on the properties of Fourier transforms. These were not competitive with direct methods and have never became popular, but they contain a nucleus for further advances. Among these we mention: (i) Bhat (1990) proposed a Metropolis technique (Metropolis et al., 1953; Kirkpatrick et al., 1983; Press et al., 1992), also known as simulated annealing (the reader is referred to Section 12.9 for details on the algorithm). From a random set of phases, an electron density map is calculated, modified, and inverted. The corresponding phases are altered according to the simulated annealing algorithm, and then used to calculate a new electron density map. The procedure is cyclic. (ii) A strictly related simulated annealing procedure has been proposed by Su (1995). The objective function to minimize was . . . R = ∑h (S|Fh|calc − |Fh|obs)2, . . . where S is the scale factor. The scheme is as follows: random atomic positions are generated and in succession shifted; the simulated annealing algorithm is applied to accept or reject atomic shifts. At the end, a new atomic structure is generated, whose positions are shifted in succession, and so on in a cyclic way. (iii) The forced coalescence method (FCP) was proposed by Drendel et al. (1995). Hybrid electron density maps (see Section 7.3.4) were actively used with different values of τ and ω. Even if never popular, the above algorithms opened the way to two other methods which are much more efficient, charge flipping and VLD (vive la difference), to which this chapter is dedicated. Both are based on the properties of the Fourier transform; they do not require the explicit use of structure invariants and seminvariants, or a deep knowledge of their properties. The reader should not, however, conclude that the invariance and seminvariance concepts are not necessary in the handling of these approaches, on the contrary, understanding these basic concepts is essential to the appreciation of these new methods.
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Neumann, David J. "The Death of an Immortal Guru." In Finding God through Yoga. University of North Carolina Press, 2019. http://dx.doi.org/10.5149/northcarolina/9781469648637.003.0006.
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This chapter explores discipleship and conversion in SRF, Yogananda’s dramatic death, and the transfer of authority that transpired afterward. The chapter explores profiles of more than fifteen Yogananda disciples, employing a model of conversion to offer insight into common patterns of the spiritual seekers who chose to join a new religious movement, following a guru who claimed powers like clairvoyance and hinted at his own deity. The circumstances surrounding Yogananda’s death and his followers’ efforts to cope with the tragedy are considered next. Yogananda’s death produced a crisis in leadership. Max Weber’s model of the routinization of charisma, modified by subsequent scholars, offers insight into the common challenge faced by organizations led by charismatic individuals, particularly after their death. Yogananda spiritualized his own leadership by indicating that his writings were to become the “guru” after his departure, but this did not fully solve the problem of human leadership. After the short tenure of one leader, long-term female disciple Faye Wright was appointed. Her half-century tenure at SRF stabilized the organization and routinized its publications by and about Yogananda.
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Prasath, J. S. "Compound Cryptography for Internet of Things Based Industrial Automation." In Internet of Things. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95845.
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Internet of things based industrial automation systems are widely used for process monitoring, and control applications. The security threats increase due to the internet is an open environment. This proposed work is the implementation of secure monitoring of plant information through the Supervisory Control and Data Acquisition (SCADA) system. The modified asymmetric and hash algorithm is proposed which generates the large key size of 4096-bit and 512-bit respectively. This proposed security algorithm is implemented using the ARM Cortex A53 processor which performs data encryption and decryption. It provides authentication and integrity of process information across the internet. It achieves a data transfer rate of 300 Megabits per second and more than 95 percent efficiency. This proposed work can be applied for securing the internet-enabled industrial automation process and allows secure monitoring of plant information in remote areas. The security of sensitive process parameters is enhanced through the proposed large key size in asymmetric algorithms. This proposed security algorithm prevents the damage to industrial devices from unauthorized access and modification. It assures the smooth functioning of plant operations and also provides safety to plant operators.
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West-Eberhard, Mary Jane. "Homology." In Developmental Plasticity and Evolution. Oxford University Press, 2003. http://dx.doi.org/10.1093/oso/9780195122343.003.0033.
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Homology—similarity due to common descent—is the cornerstone of comparative evolutionary research. Wake (1994) calls it “the central concept for all of biology”. Yet homology, like “fitness” or “species,” is an elusive concept. There is unceasing debate within evolutionary biology regarding its meaning and use. Combinatorial evolution and the extensive recurrence of similar traits revealed by modern phylogenetic study (see chapter 19) compel biologists to reconsider many ideas about homology. This is already becoming apparent in recent discussions of homology in relation to developmental variation (e.g., Wagner, 1989a,b; Hall, 1994). The traditional idea of homology visualizes a linear series of changes whereby an ancestral trait has been transformed into a descendent one (see discussion by Cartmill, 1994). By this idea different homologues may appear differently modified on different phylogenetic branches, but each descendant homologous trait has at its core a single ancestral trait. If two characters are homologous, that means that each is the modified descendant of a single ancestral trait of a shared common ancestor, and characters can be homologized in simple two-member pairs. Combinatorial evolution raises the possibility that derived traits may often contain elements of more than one ancestral trait, and that what was formerly seen as a de novo modification actually involves the recombined expression of preexisting traits. Homology may involve not just different degrees of similarity, due to divergent modification, but may be “mixed.” The maize ear, for example, combines features of both male and female ancestral inflorescences (see chapter 15), and the insect head evolved by the fusion of six ancestral body segments (Kukalova-Peck, 1997). Tracing mixed homologies requires separately homologizing pairs or series of ancestral and derived states for different elements of the same descendent trait, not just lineal comparisons focusing on the modifications of a single ancestral form. Other problems are raised for the homology concept by the fact that “the same” feature may be conserved via different developmental pathways, and by the frequent and evolutionarily important occurrence of duplication and modification (see chapter 8, on duplication), producing “serial” or “iterative” homology (“homonomy”) and positional shifts (see chapter 12, on heterotopy) of similar and historically related structures (for discussions of these problems, see Roth, 1984, 1988).
Conference papers on the topic "Modified Morlet transform"
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Hong Han and Cai-Xia Deng. "The isometric identity formulas in the modified Morlet wavelet transform." In 2007 International Conference on Wavelet Analysis and Pattern Recognition. IEEE, 2007. http://dx.doi.org/10.1109/icwapr.2007.4421701.
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Abid, Abdulbasit Z., Munther A. Gdeisat, David R. Burton, Michael J. Lalor, Hussein S. Abdul-Rahman, and Francis Lilley. "Fringe pattern analysis using a one-dimensional modified Morlet continuous wavelet transform." In Photonics Europe, edited by Peter Schelkens, Touradj Ebrahimi, Gabriel Cristóbal, and Frédéric Truchetet. SPIE, 2008. http://dx.doi.org/10.1117/12.781677.
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Sousa, Priscila F. B., Ana P. Fernandes, Vale´rio Luiz Borges, George S. Dulikravich, and Gilmar Guimara˜es. "Dynamic Observer Method Based on Modified Green’s Functions for Robust and More Stable Inverse Algorithms." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49062.
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This work presents a modified procedure to use the concept of dynamic observers based on Green’s functions to solve inverse problems. The original method can be divided in two distinct steps: i) obtaining a transfer function model GH and; ii) obtaining heat transfer functions GQ and GN and building an identification algorithm. The transfer function model, GH, is obtained from the equivalent dynamic systems theory using Green’s functions. The modification presented here proposes two different improvements in the original technique: i) A different method of obtaining the transfer function model, GH, using analytical functions instead of numerical procedures, and ii) Definition of a new concept of GH to allow the use of more than one response temperature. Obtaining the heat transfer functions represents an important role in the observer method and is crucial to allow the technique to be directly applied to two or three-dimensional heat conduction problems. The idea of defining the new GH function is to improve the robustness and stability of the algorithm. A new dynamic equivalent system for the thermal model is then defined in order to allow the use of two or more temperature measurements. Heat transfer function, GH can be obtained numerically or analytically using Green’s function method. The great advantage of deriving GH analytically is to simplify the procedure and minimize the estimative errors.
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Zhang, Zhenzhong, and Shijian Zhu. "Study on the Method of Modified Random Decrement for Transfer Function." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/vib-48451.
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This paper presents a modified random decrement method to obtain the steady-state response of vibration system. The expressions are deduced. Two numerical simulations and verification are given. The efficiencies of the modified method and the conventional process are compared. It is shown that the method is more efficient than the conventional process to diminish the influence of the initial excitation on the transfer function calculation of the vibration system.
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Hossain, Shakhawat, Mubashshir Ahmad Ansari, Afzal Husain, and Kwang-Yong Kim. "Numerical Study on Mixing of Two Fluids With Modified Tesla Structure." In ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer. ASMEDC, 2009. http://dx.doi.org/10.1115/mnhmt2009-18117.
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In this study, a parametric investigation on mixing of two fluids in a modified Tesla microchannel, has been preformed. Modified Tesla micromixer applies both flow separation and vortices string principles to enhance the mixing. The fluid stream splits into two sub-streams and one of them mixes with the other again at the exit of the Tesla unit. Analyses of mixing and flow field have been carried out for a wide range of Reynolds number from 0.05 to 40. Mixing performance and pressure drop characteristics with two geometrical parameters, i.e, ratio of the diffuser gap to channel width (h/w) and ratio of the curved gap to the channel width (s/w), have been analyzed at six different Reynolds numbers. The vortical structure of the flow has been analyzed to explain mixing performance. The sensitivity analysis reveals that mixing is more sensitive s/w, than the h/w.
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Yi, Sung-Jae, and Moon-Sun Chung. "An Advanced Semi-Implicit Method for Two-Phase Flow Calculation." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22009.
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Introducing the interfacial pressure jump terms based on the surface tension into the momentum equations of two-phase two-fluid model, the system of governing equations is turned mathematically into the hyperbolic system. The eigenvalues of the equation system become always real representing the void wave and the pressure wave propagation speeds as shown in the present authors’ reference: Numerical Heat Transfer —Part B, vol. 40, pp. 83–97. To solve the interfacial pressure jump terms with void fraction gradients implicitly, the conventional semi-implicit method should be modified as an intermediate iteration method for void fraction at fractional time step. Owing to this modified numerical scheme with surface tension effect, the advanced semi-implicit method (ASIM) then becomes stable without conventional additive terms. As a consequence, including the interfacial pressure jump terms with the advanced semi-implicit method, the numerical solutions of typical two-phase problems can be more stable and sound than those calculated exclusively by using any other terms like virtual mass, or artificial viscosity.
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Ma, Xianfeng, Gen Li, Xuelin Zheng, Xiaozhong Wang, Zhongcheng Wang, and Yulong Ji. "Thermal Property Enhancement of Liquid Metal Used As Thermal Interface Material by Mixing Magnetic Particles." In ASME 2019 6th International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/mnhmt2019-4155.
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Abstract The usage of low melting temperature alloys (LMAs) as thermal interface materials (TIMs) has attracted more and more attention for their high thermal conductivity. However, the wettability between liquid metal and ordinary metal surface was poor, which results in high thermal interface resistance. The thermal and physical properties of LMAs can be modified by adding nano or micro particles. In this study, the room temperature liquid metal (gallium, indium and tin eutectic) was used as TIM and its properties were modified by mixing magnetic nickel particles. Further, the effects of magnetic field application on the thermal performance of modified LMAs were evaluated by steady state method with specially designed sample holder. Results showed that the thermal conductivity of liquid metal mixed with nickel particle increased from 27.33 W/(m · K) to 33.33 W/(m · K) with the application of magnetic field.
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Shi, Guohua, Youyin Jing, Yuefen Gao, and Guozhong Zheng. "Performance Evaluation for Micro-Turbine Using Modified TOPSIS With Objective Weights." In ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/es2009-90110.
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Micro-turbine is paid more and more attention in scientific research and commercial application with the development of distribution generation (DG) in the global range. It is essential to make a synthetic and scientific evaluation on the performance of micro-turbine in order to promote the progress of the distributed generation technology using micro-turbine. This study presents the synthetic performance evaluation of micro-turbine. Some performance characters (rated capacity, generating efficiency, overall system efficiency, unit cost, fuel consumption, multi-fuel, NOx emission level, noises and life time) are chosen as evaluating criterions and some common micro-turbines are taken as evaluating objects in this paper. Considering the difficulty of fuzzy synthetic evaluation method in calculation of the multiple factors and the ignorance of the relationship among evaluating objects, a modified TOPSIS with objective weights is introduced and applied in performance assessment of the micro-turbines. Each criterion weight is calculated based on Shannon’s entropy concept. The evaluation result of the example shows that this approach is favorable for fuzzy synthetic evaluation of micro-turbine performance, particularly applicable for situations where reliable subjective weights from experts cannot be obtained. The evaluation results can also be as references for manufactures how to improve design of micro-turbines and for users how to make proper selection of micro-turbines.
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Eisenkolb, Peter, Martin Pogoreutz, and Hermann Halozan. "Modified Rankine HRSG Beats Triple-Pressure System." In ASME 1996 Turbo Asia Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-ta-050.
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Gas-fired combined cycle power plants (CCP) are presently the most efficient systems for producing electricity with fossil fuels. Gas turbines have been and are being improved remarkably during the last years; presently they achieve efficiencies of more than 38% and gas turbine outlet temperatures of up to 610°C. These high outlet temperatures require modifications and improvements of heat recovery steam generators (HRSG). Presently dual pressure HRSGs are most commonly used in combined cycle power stations. The next step seems to be the triple-pressure HRSG to be able to utilise the high gas turbine outlet temperatures efficiently and to reduce exergy losses caused by the heat transfer between exhaust gas and the steam cycle. However, such triple-pressure systems are complicated considering parallel tube bundles as well as start up operation and load changes. For that reason an attempt has been made to replace such multiple pressure systems by a modified Rankine cycle with only a single-pressure level. In the case of the same total heat transfer surfaces this innovative single-pressure system achieves approximately the same efficiency as the triple-pressure system. By optimising the heat recovery from the exhaust gas to the steam/water cycle, i.e. minimising exergy losses, the stack temperature is much higher. Increasing the heat transfer surfaces means a decrease of the stack temperature and a further improvement of the overall CCP-efficiency. Therefore one has to be aware that the proposed system offers advantages not only in the case of a foreseeable increase of gas turbine outlet temperatures but also for presently available gas turbines. Using existing highly efficient gas turbines and subcritical steam conditions, power plants with this proposed Eisenkolb Single Pressure (ESP_CCP) heat recovery steam generator achieve thermal efficiencies of about 58.7% (LHV).
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Dapeng, Yan, and Ying Luo. "A Study of Heat Transfer Calculation Method of Reactor Vessel Metallic Insulation." In 2014 22nd International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/icone22-30446.
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Metallic insulation is commonly used in reactor vessel because of its resistance to radiation and corrosion. Since the main mode of heat loss of reactor vessel is thermal radiation, the ability to prevent radiation heat transfer is important for metallic insulation. But the thermal conductivity of metallic insulation is difficult to calculate owing to their complex geometry. This article uses FLUENT 14.0 to obtain the important parameter “view factor”, and then develops a computational model of effective conductivity of metallic insulation. Heat transfer test of metallic insulation was done, and the numerical simulation of metallic insulation was also performed. Based on results of test and simulation, the computational model is modified. The modified model can fit the test result better. Based on the modified model, the effective conductivity of metallic insulation increases with the increase of temperature of hot side and cold side, among which the temperature of hot side influences more. And when the temperature is high, the effective conductivity increases much faster.