Relevant bibliographies by topics / Critical growth periods

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Critical growth periods'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

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Journal articles on the topic "Critical growth periods"

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Gale, C. R. "Critical periods of brain growth and cognitive function in children." Brain 127, no. 2 (2004): 321–29. http://dx.doi.org/10.1093/brain/awh034.

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Jameel, H. "CRITICAL PERIODS OF DEVELOPMENT AND PEAKS OF EMBRYO MORTALITY DURING INCUBATION." National Association of Scientists 2, no. 68 (2021): 20–22. http://dx.doi.org/10.31618/nas.2413-5291.2021.2.68.447.

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In the process of development, the embryo goes through a number of stages due to qualitative structural changes and the following periods of growth. Periods of change of development for periods of growth are critical and most sensitive to external factors.
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Cooke, R. W. I. "Are there critical periods for brain growth in children born preterm?" Archives of Disease in Childhood - Fetal and Neonatal Edition 91, no. 1 (2005): F17—F20. http://dx.doi.org/10.1136/adc.2005.077438.

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Matthews, Lillian G., Brian H. Walsh, Clare Knutsen, et al. "Brain growth in the NICU: critical periods of tissue-specific expansion." Pediatric Research 83, no. 5 (2018): 976–81. http://dx.doi.org/10.1038/pr.2018.4.

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Chen, Chen, Bin He, Lanlan Guo, Yafeng Zhang, Xiaoming Xie, and Ziyue Chen. "Identifying Critical Climate Periods for Vegetation Growth in the Northern Hemisphere." Journal of Geophysical Research: Biogeosciences 123, no. 8 (2018): 2541–52. http://dx.doi.org/10.1029/2018jg004443.

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Cameron, No�l, and Ellen W. Demerath. "Critical periods in human growth and their relationship to diseases of aging." American Journal of Physical Anthropology 119, S35 (2002): 159–84. http://dx.doi.org/10.1002/ajpa.10183.

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Middaugh, Lawrence D., and William O. Boggan. "Postnatal Growth Deficits in Prenatal Ethanol-Exposed Mice: Characteristics and Critical Periods." Alcoholism: Clinical and Experimental Research 15, no. 6 (1991): 919–26. http://dx.doi.org/10.1111/j.1530-0277.1991.tb05189.x.

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Cormier, Aurelie. "Precautionary Principle: Cancer Prevention Efforts During Critical Periods of Growth and Development." Clinical Journal of Oncology Nursing 23, no. 6 (2019): 659–63. http://dx.doi.org/10.1188/19.cjon.659-663.

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Praznikov, V. P. "Motor responses in rats during critical growth periods in early postnatal life." Bulletin of Experimental Biology and Medicine 100, no. 3 (1985): 1150–54. http://dx.doi.org/10.1007/bf00839393.

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Bhatta, Sandip, Toshiharu Iwai, Takeshi Miura, Masato Higuchi, Gersende Maugars, and Chiemi Miura. "Differences between male and female growth and sexual maturation in tilapia (oreochromis mossambicus)." Kathmandu University Journal of Science, Engineering and Technology 8, no. 2 (2013): 57–65. http://dx.doi.org/10.3126/kuset.v8i2.7326.

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In tilapia, growth during critical periods of the life cycle varies at different ages of development and is influenced by sexual maturation. The mechanisms controlling gametogenesis and how growth affects this process are poorly understood. This study indicates that tilapia exhibit a sexually dimorphic growth pattern in which males grow faster and bigger than females. During critical periods of development growth patterns of tilapia vary between males and females as they increase in age and sexual maturation. In this study interactions between growth and reproductive development were examined
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Dissertations / Theses on the topic "Critical growth periods"

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Paulauskienė, Skaidrė. "The relation between elevated blood pressure in young men and critical growth periods." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110920_152526-26757.

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Primary arterial hypertension is diagnosed in every third adult. The disease tends to appear in younger individuals, especially men. However, general cardiovascular disease risk factors fail to explain this trend. Insufficient attention is given to the possible relation between hypertension and birth parameters as well as growth characteristics. It was not known which of the general hypertension risk factors and which of the critical growth period characteristics have major influence on the development of elevated blood pressure in young men in our country. Therefore, this dissertation aims at
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Paulauskienė, Skaidrė. "Jaunuolystės amžiaus vyrų padidėjusio kraujospūdžio sąsajos su kritiniais augimo periodais." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110920_152416-70215.

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Pirminė arterinė hipertenzija diagnozuojama kas trečiam suaugusiam. Liga jaunėja, ypač tarp vyrų, šios tendencijos nepavyksta paaiškinti vien bendraisiais kardiovaskulinės rizikos veiksniais. Mažai kreipiamas dėmesys į galimą hipertenzijos ryšį su gimimo parametrais ir augimo ypatumais. Nebuvo aišku, kurie iš bendrųjų hipertenzijos rizikos veiksnių ir kokie kritinių augimo tarpsnių ypatumai daro didžiausią įtaką mūsų šalies jaunimo kraujospūdžio raidai. Todėl disertacija skirta įvertinti jaunuolystės amžiaus vyrų (18-21 metų) padidėjusio kraujospūdžio ryšį su skirtingų kritinių augimo periodų
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Katsube, Motoki. "Critical Growth Processes for the Midfacial Morphogenesis in the Early Prenatal Period." Kyoto University, 2019. http://hdl.handle.net/2433/242383.

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Denis, Jeremy. "Changements ontogéniques de la condition larvaire chez une espèce de poisson à reproduction hivernale, le hareng des Downs." Thesis, Littoral, 2016. http://www.theses.fr/2016DUNK0431/document.

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La condition des larves de hareng des Downs durant la période critique a été caractérisée entre 2008 et 2015, en Manche orientale et dans la Baie sud de la Mer du Nord à partir des données collectées, durant la campagne International Bottom Trawl Surveys (IBTS). Tout d'abord, l'étude de la stratégie alimentaire, à partie de l'observation des proies dans les contenus digestifs par deux méthodes complémentaires (microscopie électronique et mesure de la fluorescence) a montré un changement de régime en fonction de la taille. Les larves inférieures à 13 mm avaient un régime omnivore très diversifi
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Keil, Wolfgang. "Optimization principles and constraints shaping visual cortical architecture." Doctoral thesis, 2012. http://hdl.handle.net/11858/00-1735-0000-000D-F0B0-0.

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Books on the topic "Critical growth periods"

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Berman, Joshua A. A Critical Intellectual History of the Historical-Critical Paradigm in Biblical Studies. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780190658809.003.0012.

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This chapter seeks to understand the origins of the intellectual commitments that shape the discipline today, and its halting disposition toward empirical models of textual growth. It examines how theorists over three centuries have entertained the most fundamental questions concerning the goals and methods of historical-critical study of the Hebrew Bible. The axioms that governed nineteenth-century German scholarship were at a great divide from those that governed earlier historical-critical scholarship, such as that of Spinoza. From there, the chapter offers a brief summary of the claims of
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Gluckman, Sir Peter, Mark Hanson, Chong Yap Seng, and Anne Bardsley. Conceptual background to healthy growth and development. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780198722700.003.0002.

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This chapter reviews the concepts of developmental plasticity and mismatch, critical periods for exposures, and the emergent science of epigenetics to explain how relatively subtle changes in parental behaviour can affect the outcomes of pregnancy, and why there are echoes of such influences across the whole of life. Contrary to earlier belief that embryonic and fetal development is set by a genetic programme, it is now clear that the fetus responds to cues in the in utero environment and can alter its development and metabolism accordingly. The ‘decisions’ that the developing fetus makes are
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Friedman, Michael T., and Jacob Bustad. Sport and Urbanization. Edited by Robert Edelman and Wayne Wilson. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199858910.013.3.

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Since the start of the nineteenth century, the processes of urban development and the development of modern sport have been dialectically linked. With critical masses of potential participants, spectators, and media, the city provided the necessary ingredients for the development of sport as a structured activity and viable enterprise. With concerns over the social and public health impacts of rapid urbanization, sport helped to shape urban growth through the development of major metropolitan parks; the creation of small parks, playgrounds, and gymnasiums; the provision of resources for recrea
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Franko, William W., and Christopher Witko. Introduction. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190671013.003.0001.

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Chapter 1 is the introductory chapter. In this chapter the authors briefly lay out the scope of income inequality in the United States, in comparison to past periods of US history and to other wealthy democracies. They also describe the growing salience of inequality in American politics, and explain how policy decisions made by the federal government have been critical to the growth of inequality, and how the federal government has failed to take action to reduce inequality. They conclude by explaining that, in keeping with American history, the states are beginning to tackle this growing eco
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Capussela, Andrea Lorenzo. The ‘Economic Miracle’ and an Ambitious Reform Programme. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198796992.003.0007.

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This chapter discusses the 1950–64 period, during which Italy’s convergence to the productivity frontier proceeded at the fastest pace in its history. This burst of catch-up growth—the so-called ‘economic miracle’, which radically transformed Italian society—was driven by TFP growth. Though largely unreformed, the country’s economic institutions sustained structural change, technology absorption and adaptation, and intense capital accumulation. The weakness of this transitory growth model—for which the unlimited supply of labour from the agricultural sector was a critical condition—emerged whe
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Kabha, Mustafa. The Arabic Palestinian Press between the Two World Wars. Edinburgh University Press, 2018. http://dx.doi.org/10.3366/edinburgh/9781474430616.003.0004.

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This chapter discusses the development of the Arabic press in Palestine during the years 1929–39, a period that saw the emergence of the Palestinian national movement in its struggle with the Zionist movement and the administration of the British mandate to prevent the fulfilment of the programme for a Jewish national home. The press played a critical role in this process, from its beginnings in the mid-1920s through a period of growing strength following the events of 1929 which peaked during the Great Strike of April–October 1936. In its examination of the development of the Palestinian nati
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Thompson, William R., and Leila Zakhirova. Comparing the Four Main Cases. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190699680.003.0009.

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No two system leaders were identical in their claims to being the most innovative states in their respective zones, eras, and periods of leadership. Nonetheless, three general categories emerge: maritime commercial leadership, a pushing of agrarian boundaries, and sustained industrial economic growth. Those that made breakthroughs in the latter category, of course, redefined the modern world. Frontiers were critically important in all four cases of system leadership (China, the Netherlands, Britain, and the United States), but not exactly in the same way. Major improvements in transportation/c
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Hegmon, Michelle. Path Dependence. Edited by Barbara Mills and Severin Fowles. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199978427.013.7.

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Path dependence concepts, thus far, have seen little application in archaeology, but they have great potential. At a general level, these concepts provide tools for theorizing historical sequences, such as patterns of settlement on a landscape and divergent historical traditions. Potential applications include issues of historical contingency in the late Rio Grande, settlement in the Mesa Verde region, and divergent trajectories in the post-Chaco period. Specific concepts from path dependence theory, including lock-in and critical junctures, are illustrated by an analysis of the growth of Hoho
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Lee, Jongkyung. Introduction and survey of scholarship. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198816768.003.0001.

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In this introductory chapter, a hypothesis is put forward that a series of programmatic additions were made to the oracles against the nations in Isa 13-23 by the same circle of writers who were responsible for putting together chs 40-55 in the late-exilic period. Various views on the formation of chs 13-23 are surveyed because many critics suspect that there was a merger between a series of oracles belonging to the Isaiah tradition and an extra-Isaianic collection of oracles against the nations sometime in the post-exilic period – a theory that a priori negates the present study’s proposal. T
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Spray, E. C. Health and Medicine in the Enlightenment. Edited by Mark Jackson. Oxford University Press, 2012. http://dx.doi.org/10.1093/oxfordhb/9780199546497.013.0005.

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This article discusses the transformation of medicine at the very end of the century and thus represents a shift both in the training of medical practitioners and in accounts of the body. The eighteenth century has been described as a time of increasing medicalization of Western societies. Though this is usually portrayed as a growth in the power of medical practitioners over ordinary life, in practice lay people may also understand it as an increasing embrace of the medical. The eighteenth century continues to be viewed as a critical period in the history of medicine, as the century when bodi
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Book chapters on the topic "Critical growth periods"

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Scott, J. P. "Critical Periods in Organizational Processes." In Human Growth. Springer US, 1986. http://dx.doi.org/10.1007/978-1-4613-2101-9_10.

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Wlnick, Myron, Pedro Rosso, and Jo Anne Brasel. "Malnutrition and Cellular Growth in the Brain: Existence of Critical Periods." In Novartis Foundation Symposia. John Wiley & Sons, Ltd., 2008. http://dx.doi.org/10.1002/9780470719862.ch12.

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Tura, Belgin. "Critical Periods in the Historical Process in Turkish Higher Education and Effectiveness on Turkey." In Economic Growth and Demographic Transition in Third World Nations. Apple Academic Press, 2019. http://dx.doi.org/10.1201/9780429433894-26.

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"Plants: Critical Growth Periods." In Encyclopedia of Water Science, Second Edition. CRC Press, 2007. http://dx.doi.org/10.1081/e-ews2-120010160.

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"Impact of Dietary Sugars on Obesity and Metabolic Risk during Critical Periods of Growth and Development." In Dietary Sugars and Health. CRC Press, 2014. http://dx.doi.org/10.1201/b17849-22.

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Yersel, Beyhan Özge, and Ender Durualp. "Foundations of Development/Introduction to Development." In Advances in Medical Diagnosis, Treatment, and Care. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2952-2.ch001.

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Development is a dynamic process starting from prenatal period and lasting for life. In order to understand development, some basic concepts such as development, growth, progress, change, maturation, learning, readiness, period, critical period, time, and historical time should be mentioned. To understand development, it is necessary to know the principle of development. Development is affected by biological and many environmental factors. It is accepted that development is a product of heredity and environment. The periods of development, which take part in the life of the individual and defined with certain characteristics, are classified as prenatal, infancy, early childhood, middle childhood, adolescence, adulthood, and old age. Development is examined by branching such as physical, motor, cognitive, language, social and emotional, personality, moral, perceptual development, and sexual development. Families and educators play an important role in supporting the development of children. Ethics is a very sensitive issue in child development.
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Erçek, Mehmet, and Mesut Sarıtemur. "The Dynamics of Entrepreneurial Networks." In Nascent Entrepreneurship and Successful New Venture Creation. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-2936-1.ch011.

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This study attempts to analyze the dynamic impact of the entrepreneurial network at early stages of high technology start-ups, namely conception, gestation and infancy phases, located at a university based incubator. Empirical results show that, in different stages of a new enterprise, the use of formal or informal components of entrepreneurial network imposes distinctive impacts on performance of the start-ups. Prior ties that helped start-ups to acquire critical resources and capabilities proved to be dysfunctional in the latter stages. Conversely, weak or insignificant ties that were created in earlier periods provided start-ups with critical resources or capabilities for growth and survival. Consequently, results revealed that the formal efforts of incubator to facilitate such networks, such as mentoring activities, organized events and provision of access to local and international organizations, positively influenced start-up survival and growth.
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Erçek, Mehmet, and Mesut Sarıtemur. "The Dynamics of Entrepreneurial Networks." In Research Anthology on Small Business Strategies for Success and Survival. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-9155-0.ch019.

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This study attempts to analyze the dynamic impact of the entrepreneurial network at early stages of high technology start-ups, namely conception, gestation and infancy phases, located at a university based incubator. Empirical results show that, in different stages of a new enterprise, the use of formal or informal components of entrepreneurial network imposes distinctive impacts on performance of the start-ups. Prior ties that helped start-ups to acquire critical resources and capabilities proved to be dysfunctional in the latter stages. Conversely, weak or insignificant ties that were created in earlier periods provided start-ups with critical resources or capabilities for growth and survival. Consequently, results revealed that the formal efforts of incubator to facilitate such networks, such as mentoring activities, organized events and provision of access to local and international organizations, positively influenced start-up survival and growth.
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"Pacific Salmon: Ecology and Management of Western Alaska’s Populations." In Pacific Salmon: Ecology and Management of Western Alaska’s Populations, edited by David A. Beauchamp. American Fisheries Society, 2009. http://dx.doi.org/10.47886/9781934874110.ch5.

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<em>Abstract.</em>—Size-selective mortality is a dominant variable regulating the dynamics of salmon populations. Body size, growth rate, and energy state during one life stage influence survival during that and subsequent life stages. Therefore, simultaneously examining allometric processes, foraging, and thermal constraints on growth within and among life stages can provide a powerful analytical framework for identifying critical periods and sizes during the life cycle of salmon, and for understanding the processes that contribute to the specific ecological bottlenecks confronting different species or stocks of salmon. A bioenergetics model was used to simulate generalized growth responses to a factorial combination of body size, daily feeding rate, and prey energy density over a continuous range of temperatures (0–24oC). The results of these simulations indicated that: 1) smaller salmon benefit from higher potential scope for growth or activity than larger salmon, based on the different allometric relationships for maximum consumption, metabolism, and waste; 2) optimal temperatures for growth decline with increasing body size; 3) optimal temperatures for growth also decline as daily rations decline; 4) thermal tolerances (temperature thresholds beyond which weight loss will occur) also shift to cooler temperatures for larger salmon and when ration sizes decline; 5) increasing the composite energy density of the diet can increase both optimal growth temperature, and thermal tolerance, especially at larger body sizes; 6) after spawners enter freshwater, the amount of energy and days available to migrate, and successfully spawn at a given upstream location was very sensitive to ambient river temperature, and the swimming speed required to reach the spawning grounds. When placed in the context of climate variability, seasonal shifts in temperature, and food availability, these simulations suggest that growth will be more frequently limited by feeding rate (prey availability) and prey quality than by temperature, especially for smaller, younger life stages. Larger salmon should be more sensitive to temperature change, but reductions in optimal growth temperature and thermal tolerance would be magnified for all life stages, if either feeding rate or prey quality were to be reduced. Given intense size-selective mortality during one or more early life stages, this simulation framework could be adopted to identify the key factors limiting growth to critical sizes during critical periods in the life cycle of specific salmon stocks.
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Russ, Tom C., Mark P. C. Cherrie, Chris Dibben, et al. "Life Course Air Pollution Exposure and Cognitive Decline: Modelled Historical Air Pollution Data and the Lothian Birth Cohort 1936." In Advances in Alzheimer’s Disease. IOS Press, 2021. http://dx.doi.org/10.3233/aiad210024.

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Background: Air pollution has been consistently linked with dementia and cognitive decline. However, it is unclear whether risk is accumulated through long-term exposure or whether there are sensitive/critical periods. A key barrier to clarifying this relationship is the dearth of historical air pollution data. Objective: To demonstrate the feasibility of modelling historical air pollution data and using them in epidemiological models. Methods: Using the EMEP4UK atmospheric chemistry transport model, we modelled historical fine particulate matter (PM2.5) concentrations for the years 1935, 1950, 1970, 1980, and 1990 and combined these with contemporary modelled data from 2001 to estimate life course exposure in 572 participants in the Lothian Birth Cohort 1936 with lifetime residential history recorded. Linear regression and latent growth models were constructed using cognitive ability (IQ) measured by the Moray House Test at the ages of 11, 70, 76, and 79 years to explore the effects of historical air pollution exposure. Covariates included sex, IQ at age 11 years, social class, and smoking. Results: Higher air pollution modelled for 1935 (when participants would have been in utero) was associated with worse change in IQ from age 11–70 years (β = −0.006, SE = 0.002, p = 0.03) but not cognitive trajectories from age 70–79 years (p > 0.05). There was no support for other critical/sensitive periods of exposure or an accumulation of risk (all p > 0.05). Conclusion: The life course paradigm is essential in understanding cognitive decline and this is the first study to examine life course air pollution exposure in relation to cognitive health.
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Conference papers on the topic "Critical growth periods"

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Holtam, Colum, Rajil Saraswat, Ramgopal Thodla, and Feng Gui. "A Modified Engineering Critical Assessment Approach for Offshore Pipelines." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77952.

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Environmentally assisted sub-critical static crack growth can occur in offshore pipelines exposed to aggressive production environments. Recent advances in fracture mechanics testing methods have shown that slow static crack growth rates can be reliably measured in sweet and sour environments under constant stress intensity factor (K) conditions. This has potential implications for the engineering critical assessment (ECA) of pipe girth welds subject to low cycle fatigue loading with long periods of operation under constant static load between cycles, e.g. lateral buckling. This paper demonstr
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Wang, Jing, Xiao-yang Li, and Shu-rui Li. "Research of Fatigue Crack Growth Behavior of X70 Pipeline Steel in Corrosive Environment and Evaluation of Defect." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25518.

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Long distance pipeline transmission is considered to be the most economic and safest method to transport natural gas nowadays and pipeline safety problem is a focus of concern in the academic and industrial circles. Pressure fluctuation and corrosive environment can make the typical working condition of long distance pipeline become a low frequency corrosion fatigue condition, which leads to high risk. In this paper, mathematic model of fatigue crack growth rate (FCGR) considering frequency and stress ratio has been developed and the expressions of every parameter were fitted. Critical stress
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Platts, Norman, David R. Tice, Alexandra Panteli, and Sam Cruchley. "Effect of Hold Periods on the Corrosion Fatigue Crack Growth Rates of Austenitic Stainless Steels in LWR Coolant Environments." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65787.

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Laboratory tests on austenitic stainless steel in simulated light water reactor (LWR) coolant environments have been shown to give rise to significant environmental enhancements of fatigue crack growth, especially at low cycling frequencies. The impact of LWR environments on fatigue crack growth has recently been codified in ASME code Case N-809 in terms of parameters such as rise time, stress intensity factor and load ratio. However, plant performance suggests that the application of these predicted environmental effects using current assessment procedures may be unduly pessimistic. This has
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Belyshkina, M. Е., and E. V. Gureyeva. "Influence of limiting factors of the growing season on the yield of early-maturing soybean varieties." In Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-142.

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Soybean has an ecological adaptability due to the deep selectivity of this crop in relation to the specific features of the growing zone. At the same time, it makes increased demands on heat and moisture, especially during certain "critical" periods of growth and development. The lower threshold of active average daily temperatures is 15–17oC, and for full maturation of ultra-ripe and early-maturing varieties, the sum of active temperatures of 1700–2100oС is required. Assessment of the agro-climatic resources of the Ryazan region indicates the possibility of growing precocious soybean varietie
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Faizan, M., R. A. McCoy, D. C. Lin, and G. X. Wang. "An Investigation of Copper Dissolution and Microstructural Development in Lead-Free Solders." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-42543.

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Copper dissolution and intermetallic compound (IMC) formation during reflow of soldered joints are critical issues for joint reliability. Most of studies in the literature aimed at the coarsening and growth of the IMC layer of the soldered joints during service and only limited data is available during soldering process. This is particularly true for lead-free solders, which have attracted the attention of researchers just recently. This paper presents an experimental study of copper dissolution and IMC growth of lead-free solders during the reflow process. Solder buttons of either Sn or Sn-3.
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Mao, Jinxin, Olin Hong, Rongqiao Wang, and Mingda Hua. "Damage Tolerance Analysis of Compressor Blade." In ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/94-gt-379.

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In this paper, we apply damage tolerance analysis to a certain compressor blade by finite element and fracture mechanics methods. The blade is analysed by using the isoparametric finite element with 20 nodes, its stress and displacement fields are determined, and the critical position where the crack probably initiates is located. Then the value of J–integral with different crack sizes in the critical position are computed using the 3-D J-integral program. On the basis of the fracture toughness of blade material, Je, the blade extension limit δe, and the deviation of natural frequency, Δfe, th
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Ferrans, Orlando, Walter Aparicio, Andrea Martínez, Cinthia Audivet, Horacio Pinzón, and Marco Sanjuán. "A Hybrid Methodology Combining Functional and Probabilistic Analysis to Assess the Maintenance Plan of a Natural Gas Transmission System: A Turbo-Compressor Power Pack Case Study." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71521.

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A probabilistic analysis is an approach that allows to identify whether if preventive, predictive and corrective maintenance practices are efficient for keeping the overall system safety. The implementation of methodologies that evaluate the maintenance plans are a way to improve existing programs. Promigas S.A. E.S.P. is a company that must guarantee the reliability and availability of its natural gas transmission systems to its consumers. Therefore, since 2009, the company has implemented reliability centered maintenance practices to achieve it. However, considering the current scenario of t
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Suzuki, Katsuya, Shinsuke Torisawa, and Tsutomu Takagi. "Mathematical and Experimental Analysis of Schooling Behavior During Growth in Juvenile Chub Mackerel: Considerations of Population Density and Space Limitation." In ASME 2007 26th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2007. http://dx.doi.org/10.1115/omae2007-29669.

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Population density and space limitation have proven important considerations for both fisheries management and aquaculture, resulting in intense interest in the development of new techniques and technologies for management and hatchery applications. To investigate the effects of space limitation and population density on the schooling behavior of fish, we examined the schooling behavior of captive juvenile chub mackerel. Three groups of fish were collected; collections were made at 18, 42, and 73 days post-hatch (dph) at which mean body lengths were 2.28, 8.83, and 11.4 cm, respectively. The t
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Heshmat, Hooshang, Said Jahanmir, and James F. Walton. "Coatings for High Temperature Foil Bearings." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-27975.

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High operating speeds and temperatures required for advanced turbomachinery necessitate the development of bearings capable of continuous operation between 3 to 4 million DN at temperatures up to 820°C. Non-contact oil-free bearings such as compliant foil bearings, active magnetic bearings and hybrid foil and magnetic bearings are alternate solutions to the current liquid-lubricated hydrodynamic and rolling element bearings, which have limited life under these extreme conditions. A critical component in these oil-free bearings is the tribological coating system that must be used on the journal
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Kumar, Manish, Roger Heinig, Mark Cottrell, et al. "Detection of Cracks in Turbomachinery Blades by Online Monitoring." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-14813.

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Abstract The presence of a crack in a blade can change the natural frequencies of that blade. It has long been a goal to detect blade cracks by assessing the change in a measured vibration frequency of the blade over time. It has been found that prior frequency assessment methods can be less accurate than is desirable to reliably detect the relatively small frequency changes that are typically associated with blade crack sizes of practical interest. This paper describes a method in which potential temporal changes in the frequencies of individual blades are assessed by periodically analyzing c
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Reports on the topic "Critical growth periods"

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Tetzlaff, Sasha, Jinelle Sperry, Bruce Kingsburg, and Brett DeGregorio. Captive-rearing duration may be more important than environmental enrichment for enhancing turtle head-starting success. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41800.

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Raising captive animals past critical mortality stages for eventual release (head-starting) is a common conservation tactic. Counterintuitively, post-release survival can be low. Post-release behavior affecting survival could be influenced by captive-rearing duration and housing conditions. Practitioners have adopted environmental enrichment to promote natural behaviors during head-starting such as raising animals in naturalistic enclosures. Using 32 captive-born turtles (Terrapene carolina), half of which were raised in enriched enclosures, we employed a factorial design to explore how enrich
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Ahmad, Ehtisham, and Hans van Rijn. The Role of Local Governments in Driving High-Quality Growth in the People’s Republic of China. Asian Development Bank, 2020. http://dx.doi.org/10.22617/wps200400-2.

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Over the past 25 years, the People’s Republic of China has gone through a long period of remarkable growth, lifting millions of people out of poverty. But this focus on growth has come at a cost, particularly in terms of environmental degradation, increasing socioeconomic and spatial inequalities, and the building up of fiscal liabilities at the local government level. Under the High-Quality Growth agenda, the People’s Republic of China seeks to rebalance the economy by addressing those negative side effects, and local governments will have a key role to play in the implementation of that agen
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