Relevant bibliographies by topics / Primate mating systems

Contents

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

Academic literature on the topic 'Primate mating systems'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Primate mating systems"

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Opie, Christopher, Quentin D. Atkinson, and Susanne Shultz. "The evolutionary history of primate mating systems." Communicative & Integrative Biology 5, no. 5 (September 2012): 458–61. http://dx.doi.org/10.4161/cib.20821.

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DIXSON, ALAN F. "Evolutionary Perspectives on Primate Mating Systems and Behavior." Annals of the New York Academy of Sciences 807, no. 1 Integrative N (January 1997): 42–61. http://dx.doi.org/10.1111/j.1749-6632.1997.tb51912.x.

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Anderson, M. J., J. K. Hessel, and A. F. Dixson. "Primate mating systems and the evolution of immune response." Journal of Reproductive Immunology 61, no. 1 (February 2004): 31–38. http://dx.doi.org/10.1016/j.jri.2003.11.001.

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Schillaci, Michael A. "Primate Mating Systems and the Evolution of Neocortex Size." Journal of Mammalogy 89, no. 1 (February 19, 2008): 58–63. http://dx.doi.org/10.1644/06-mamm-a-417.1.

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Schumacher, Julia, David Rosenkranz, and Holger Herlyn. "Mating systems and protein–protein interactions determine evolutionary rates of primate sperm proteins." Proceedings of the Royal Society B: Biological Sciences 281, no. 1775 (January 22, 2014): 20132607. http://dx.doi.org/10.1098/rspb.2013.2607.

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To assess the relative impact of functional constraint and post-mating sexual selection on sequence evolution of reproductive proteins, we examined 169 primate sperm proteins. In order to recognize potential genome-wide trends, we additionally analysed a sample of altogether 318 non-reproductive (brain and postsynaptic) proteins. Based on cDNAs of eight primate species (Anthropoidea), we observed that pre-mating sperm proteins engaged in sperm composition and assembly show significantly lower incidence of site-specific positive selection and overall lower non-synonymous to synonymous substitution rates ( d N / d S ) across sites as compared with post-mating sperm proteins involved in capacitation, hyperactivation, acrosome reaction and fertilization. Moreover, database screening revealed overall more intracellular protein interaction partners in pre-mating than in post-mating sperm proteins. Finally, post-mating sperm proteins evolved at significantly higher evolutionary rates than pre-mating sperm and non-reproductive proteins on the branches to multi-male breeding species, while no such increase was observed on the branches to unimale and monogamous species. We conclude that less protein–protein interactions of post-mating sperm proteins account for lowered functional constraint, allowing for stronger impact of post-mating sexual selection, while the opposite holds true for pre-mating sperm proteins. This pattern is particularly strong in multi-male breeding species showing high female promiscuity.
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Ostner, Julia, and Oliver Schülke. "The evolution of social bonds in primate males." Behaviour 151, no. 7 (2014): 871–906. http://dx.doi.org/10.1163/1568539x-00003191.

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Social bonds, here defined as strong, equitable and enduring social relationships, increase fitness in both male and female primates irrespective of their dispersal regime. Despite the benefits they carry for some, social bonds evolved more often among female than among male primates which is thought to be caused by the unsharable nature of males’ limiting resource, fertilizations. Here we present a structured review of variation in primate male social relationships, mating systems, and social organization. In addition to classical socio-ecological reasoning and recent models on the evolution of male coalitions, we consider the phylogenetic history of species living in multi-male groups and alternative evolutionary routes to male co-residency, which may constrain the evolution of male social bonds in some cases. We summarize our results in a conceptual framework that represents the effects of male contest competition within and between groups on male social organization, affiliation and cooperation. We conclude that male social bonds evolved as long-term alliances that gain their adaptive function in within group contests and, thus, that the evolution of male social bonds is driven by variation in within group contest competition. Between group contest competition may select for large male group size but in the end it is the narrow window of medium to low within group contest competition that promotes the evolution of political coalitions and thus is responsible for the rarity of social bonds among primate males.
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Huck, Maren, Eduardo Fernandez-Duque, Paul Babb, and Theodore Schurr. "Correlates of genetic monogamy in socially monogamous mammals: insights from Azara's owl monkeys." Proceedings of the Royal Society B: Biological Sciences 281, no. 1782 (May 7, 2014): 20140195. http://dx.doi.org/10.1098/rspb.2014.0195.

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Understanding the evolution of mating systems, a central topic in evolutionary biology for more than 50 years, requires examining the genetic consequences of mating and the relationships between social systems and mating systems. Among pair-living mammals, where genetic monogamy is extremely rare, the extent of extra-group paternity rates has been associated with male participation in infant care, strength of the pair bond and length of the breeding season. This study evaluated the relationship between two of those factors and the genetic mating system of socially monogamous mammals, testing predictions that male care and strength of pair bond would be negatively correlated with rates of extra-pair paternity (EPP). Autosomal microsatellite analyses provide evidence for genetic monogamy in a pair-living primate with bi-parental care, the Azara's owl monkey ( Aotus azarae ) . A phylogenetically corrected generalized least square analysis was used to relate male care and strength of the pair bond to their genetic mating system (i.e. proportions of EPP) in 15 socially monogamous mammalian species. The intensity of male care was correlated with EPP rates in mammals, while strength of pair bond failed to reach statistical significance. Our analyses show that, once social monogamy has evolved, paternal care, and potentially also close bonds, may facilitate the evolution of genetic monogamy.
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Bergey, Christina M., Jane E. Phillips-Conroy, Todd R. Disotell, and Clifford J. Jolly. "Dopamine pathway is highly diverged in primate species that differ markedly in social behavior." Proceedings of the National Academy of Sciences 113, no. 22 (May 2, 2016): 6178–81. http://dx.doi.org/10.1073/pnas.1525530113.

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In the endeavor to associate genetic variation with complex traits, closely related taxa are particularly fruitful for understanding the neurophysiological and genetic underpinnings of species-specific attributes. Similarity to humans has motivated research into nonhuman primate models, yet few studies of wild primates have investigated immediate causal factors of evolutionarily diverged social behaviors. Neurotransmitter differences have been invoked to explain the distinct behavioral suites of two baboon species in Awash, Ethiopia, which differ markedly in social behavior despite evolutionary propinquity. With this natural experiment, we test the hypothesis that genomic regions associated with monoamine neurotransmitters would be highly differentiated, and we identify a dopamine pathway as an outlier, highlighting the system as a potential cause of species-specific social behaviors. Dopamine levels and resultant variation in impulsivity were likely under differential selection in the species due to social system structure differences, with either brash or circumspect social behavior advantageous to secure mating opportunities depending on the social backdrop. Such comparative studies into the causes of the behavioral agendas that create and interact with social systems are of particular interest, and differences in temperament related to boldness and associated with dopamine variation likely played important roles in the evolution of all social, behaviorally complex animals, including baboons and humans.
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Huchard, Elise, Alexandre Courtiol, Julio A. Benavides, Leslie A. Knapp, Michel Raymond, and Guy Cowlishaw. "Can fertility signals lead to quality signals? Insights from the evolution of primate sexual swellings." Proceedings of the Royal Society B: Biological Sciences 276, no. 1663 (February 25, 2009): 1889–97. http://dx.doi.org/10.1098/rspb.2008.1923.

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The sexual swellings of female primates have generated a great deal of interest in evolutionary biology. Two hypotheses recently proposed to elucidate their functional significance argue that maximal swelling size advertises either female fertility within a cycle or female quality across cycles. Published evidence favours the first hypothesis, and further indicates that larger swellings advertise higher fertility between cycles. If so, a male preference for large swellings might evolve, driving females to use swellings as quality indicators, as proposed by the second hypothesis. In this paper, we explore this possibility using a combination of empirical field data and mathematical modelling. We first test and find support for three key predictions of the female-quality hypothesis in wild chacma baboons ( Papio ursinus ): (i) inter-individual differences in swelling size are maintained across consecutive cycles, (ii) females in better condition have larger swellings and higher reproductive success, and (iii) males preferentially choose females with large swellings. We then develop an individual-based simulation model that indicates that females producing larger swellings can achieve higher mating success even when female–female competition is low and within-female variance in the trait is high. Taken together, our findings show that once sexual swellings have evolved as fertility signals, they might, in certain socio-sexual systems, be further selected to act as quality signals. These results, by reconciling two hypotheses, help to clarify the processes underlying sexual swelling evolution. More generally, our findings suggest that mate choice for direct benefits (fertility) can lead to indirect benefits (good genes).
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Vandeleest, Jessica J., Brianne A. Beisner, Darcy L. Hannibal, Amy C. Nathman, John P. Capitanio, Fushing Hsieh, Edward R. Atwill, and Brenda McCowan. "Decoupling social status and status certainty effects on health in macaques: a network approach." PeerJ 4 (September 13, 2016): e2394. http://dx.doi.org/10.7717/peerj.2394.

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BackgroundAlthough a wealth of literature points to the importance of social factors on health, a detailed understanding of the complex interplay between social and biological systems is lacking. Social status is one aspect of social life that is made up of multiple structural (humans: income, education; animals: mating system, dominance rank) and relational components (perceived social status, dominance interactions). In a nonhuman primate model we use novel network techniques to decouple two components of social status, dominance rank (a commonly used measure of social status in animal models) and dominance certainty (the relative certainty vs. ambiguity of an individual’s status), allowing for a more complex examination of how social status impacts health.MethodsBehavioral observations were conducted on three outdoor captive groups of rhesus macaques (N = 252 subjects). Subjects’ general physical health (diarrhea) was assessed twice weekly, and blood was drawn once to assess biomarkers of inflammation (interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), and C-reactive protein (CRP)).ResultsDominance rank alone did not fully account for the complex way that social status exerted its effect on health. Instead, dominance certainty modified the impact of rank on biomarkers of inflammation. Specifically, high-ranked animals with more ambiguous status relationships had higher levels of inflammation than low-ranked animals, whereas little effect of rank was seen for animals with more certain status relationships. The impact of status on physical health was more straightforward: individuals with more ambiguous status relationships had more frequent diarrhea; there was marginal evidence that high-ranked animals had less frequent diarrhea.DiscussionSocial status has a complex and multi-faceted impact on individual health. Our work suggests an important role of uncertainty in one’s social status in status-health research. This work also suggests that in order to fully explore the mechanisms for how social life influences health, more complex metrics of social systems and their dynamics are needed.
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Dissertations / Theses on the topic "Primate mating systems"

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Ruiz, Cody A. "Y-Chromosome Introgression: An Analysis of Spermatogenesis Genes Between Macaca mulatta and Macaca fascicularis." Kent State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=kent1501168493482051.

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Pullen, Samantha Lucy. "Behavioural and genetic studies of the mating system in a nocturnal primate : the Lesser Galago (Galago moholi)." Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621123.

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Wlasiuk, Battagliotti Gabriela. "THE MOLECULAR EVOLUTION OF INNATE IMMUNITY GENES." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/195184.

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It is not clear whether genes of the innate immune system of vertebrates are subject to the same selective pressures as genes of the adaptive immune system, despite the fact that innate immunity genes lie directly at the interface between host and pathogens. The lack of consensus about the incidence, type, and strength of selection acting on vertebrate innate immunity genes motivated this study. The goal of this work was to elucidate the general principles of innate immune receptor evolution within and between species. A phylogenetic analysis of the Toll-like receptor 5 (TLR5) in primates showed an excess of nonsynonymous substitutions at certain codons, a pattern that is consistent with recurrent positive selection. The putative sites under selection often displayed radical substitutions, independent parallel changes, and were located in functionally important regions of the protein. In contrast with this interspecific pattern, population genetic analysis of this gene in humans and chimpanzees did not provide conclusive evidence of recent selection. The frequency and distribution of a TLR5 null mutation in human populations further suggested that TLR5 function might be partially redundant in the human immune system (Appendix A). Comparable analyses of the remaining nine human TLRs produced similar results and further pointed to a biologically meaningful difference in the pattern of molecular evolution between TLRs specialized in the recognition of viral nucleic acids and the other TLRs (Appendix B). The general picture that emerges from these studies challenges the conventional idea that pattern recognition receptors are subject to an extreme degree of functional constraint dictated by the recognition of molecules that are essential for microbial fitness. Instead, TLRs display patterns of substitution between species that reflect an old history of positive selection in primates. A common theme, however, is that only a restricted proportion of sites is under positive selection, indicating an equally important role for purifying selection as a conservative force in the evolution of this gene family. A comparative analysis of evolutionary rates at fifteen loci involved in innate, intrinsic and adaptive immunity, and mating systems revealed that more promiscuous species are on average under stronger selection at defense genes (Appendix C). Although the effect is weak, this suggests that sexual promiscuity plays some role in the evolution of immune loci by affecting the risk of contracting infectious diseases.
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Books on the topic "Primate mating systems"

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Mansperger, Mark C. The pristine human mating system. 1987.

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Book chapters on the topic "Primate mating systems"

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Dunbar, Robin I. M. "Mating Strategies." In Primate Social Systems, 151–81. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-6694-2_8.

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Tilson, Ronald L. "Primate Mating Systems and Their Consequences for Captive Management." In Primates, 361–73. New York, NY: Springer New York, 1986. http://dx.doi.org/10.1007/978-1-4612-4918-4_28.

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Dixson, Alan F. "Mating systems." In Primate Sexuality, 28–67. Oxford University Press, 2012. http://dx.doi.org/10.1093/acprof:osobl/9780199544646.003.0003.

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Plavcan, J. Michael. "Mating systems, intrasexual competition and sexual dimorphism in primates." In Comparative Primate Socioecology, 241–70. Cambridge University Press, 1999. http://dx.doi.org/10.1017/cbo9780511542466.012.

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Guha, Sutirtha Kumar, Anirban Kundu, and Rana Dattagupta. "Domain-Based Dynamic Ranking." In Advances in Systems Analysis, Software Engineering, and High Performance Computing, 262–79. IGI Global, 2015. http://dx.doi.org/10.4018/978-1-4666-8676-2.ch017.

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In this chapter a domain based ranking methodology is proposed in cloud environment. Web pages from the cloud are clustered as ‘Primary Domain' and ‘Secondary Domain'. ‘Primary' domain Web pages are fetched based on the direct matching with the keywords. ‘Primary Domain' Web pages are ranked based on Relevancy Factor (RF) and Turbulence Factor (TF). ‘Secondary Domain' is constructed by Nearest Keywords and Similar Web pages. Nearest Keywords are the keywords similar to the matched keywords. Similar Web pages are the Web pages having Nearest Keywords. Matched Web pages of ‘Primary' and ‘Secondary' domain are ranked separately. A wide range of Web pages from the cloud would be available and ranked more efficiently by this proposed approach.
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Rosenthal, Gil G. "Conclusions: A Mate-Choice View of the World." In Mate Choice. Princeton University Press, 2017. http://dx.doi.org/10.23943/princeton/9780691150673.003.0018.

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This concluding chapter provides suggestions toward a synthetic theory of mate choice. It argues that mating decisions are a primary driver of individual fitness. The regularities that emerge around mate choice are of the sobering kind, where the Dionysian exuberance of preferences and ornamentation is checked by Apollonian concerns of fecundity and survivorship. Our intuition, however, tells us that desire is complicated and strange and unpredictable, and this intuition holds true broadly across sexually reproducing organisms. These properties of mate choice are built into the system, from the initial arbitrariness of how traits and preferences originate to the coevolutionary dynamics that drive them in unexpected directions. The seriousness of mate choice, then, is overlain with a mischievous streak that can generate gratuitous beauty and complexity.
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Vinod, P., Jikku Kuriakose, T. K. Ansari, and Sonal Ayyappan. "Optimal Features for Metamorphic Malware Detection." In Data Mining and Analysis in the Engineering Field, 1–32. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-6086-1.ch001.

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Malware or malicious code intends to harm computer systems without the knowledge of system users. These malicious softwares are unknowingly installed by naive users while browsing the Internet. Once installed, the malware performs unintentional activities like (a) steal username, password; (b) install spy software to provide remote access to the attackers; (c) flood spam messages; (d) perform denial of service attacks; etc. With the emergence of polymorphic and metamorphic malware, signature-based detectors are failing to detect new variants of these malware. The primary reason is that malicious code developed in new generation have different syntactic structures from their predecessor, thereby defeating any pattern matching techniques. Thus, the detection of morphed malware remains a complex open research problem for malware analysts. In this chapter, the authors discuss different types of malware with their detection methods. In addition, they present a proposed method employing machine learning techniques for the detection of metamorphic malware. The methodology demonstrates that appropriately selecting prominent features could improve the classification accuracy. The study also depicts that proposed methods that do not require signatures are effective in identifying and classifying morphed malware.
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Trabelsi, Chiraz, Bilel Moulahi, and Sadok Ben Yahia. "Hidden Markov Models for Context-Aware Tag Query Prediction in Folksonomies." In Advances in Human and Social Aspects of Technology, 168–90. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-4666-0894-8.ch010.

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Recently, social bookmarking systems have received surging attention in academic and industrial communities. In fact, social bookmarking systems share with the Semantic Web vision the idea of facilitating the collaborative organization and sharing of knowledge on the web. The reason for the apparent success of the upcoming tools for resource sharing (social bookmarking systems, photo sharing systems, etc.) lies mainly in the fact that no specific skills are needed for publishing and editing, and an immediate benefit is yielded to each individual user, e.g., organizing one’s bookmarks in a browser-independent, persistent fashion, without too much overhead. As these systems grow larger, however, the users address the need of enhanced search facilities. Today, full-text search is supported, but the results are usually simply listed decreasingly by their upload date. The challenging research issue is, therefore, the development of a suitable prediction framework to support users in effectively retrieving the resources matching their real search intents. The primary focus of this chapter is to propose a new, context aware tag query prediction approach. Specifically, the authors adopted Hidden Markov Models and formal concept analysis to predict users’ search intentions based on a real folksonomy. Carried out experiments emphasize the relevance of the proposal and open many issues.
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Vihman, Marilyn May. "Whole-word phonology." In Phonological Templates in Development, 37–61. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198793564.003.0002.

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This chapter provides a historical overview of the ideas underlying ‘whole-word phonology’, from the 1970s to the present. The importance of a prosodic (syntagmatic) analysis is grounded in the ideas of Firth, as adapted to early child language (Waterson, 1971). Other studies have proposed ways in which ideas based on analyses of early child data, such as lexical primacy (Ferguson & Farwell, 1975) or Radical Templatic Phonology (Vihman & Croft, 2007), are relevant for adult as well as child language. Key ideas included in the overview are developmental reorganization (Macken, 1979), template matching and the two-stage model (Menn, 1983), and exemplar theory and usage-based models (Menn et al., 2013). The principles of Dynamic Systems Theory (Thelen & Smith, 1994) are related to early phonological and lexical development.
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Foley, Michael. "7. The foreign policy process: executive, Congress, intelligence." In US Foreign Policy. Oxford University Press, 2012. http://dx.doi.org/10.1093/hepl/9780199585816.003.0007.

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This chapter examines the U.S. foreign policy process which encompasses the executive, Congress, and intelligence. It first considers American foreign policy as a primary agency of government adaptation before discussing the role of the executive as the lead agency of systemic evolution in response to foreign policy needs, taking into account the executive prerogative and judicial recognition of inherent executive power. It then describes the political and technical difficulties experienced by Congress in matching the executive in foreign policy. It also explores the ramifications of 9/11 and the war on terror for American foreign policy and concludes with an overview of U.S. foreign policy under Barack Obama.
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Conference papers on the topic "Primate mating systems"

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Kindhi, Berlian Al, Muhammad Afif Hendrawan, Diana Purwitasari, Tri Arief Sardjono, and Mauridhi Hery Purnomo. "Distance-based pattern matching of DNA sequences for evaluating primary mutation." In 2017 2nd International Conferences on Information Technology, Information Systems and Electrical Engineering (ICITISEE). IEEE, 2017. http://dx.doi.org/10.1109/icitisee.2017.8285518.

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Salazar, Ricardo, Enrico Sciubba, and Claudia Toro. "Exergy Analysis and Optimization of a Building Air Conditioning System in Tropical Climate." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-36764.

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The space conditioning sector is one of the highest exergy consumers and least efficient from the point of view of primary-to-end-use matching. Exergy analysis can be considered as a reliable tool for analyzing and optimizing energy consumption related to building conditioning systems. The present study presents a comparative exergy analysis of the air conditioning system of the TOTAL S.A. offices located in Caracas, Venezuela to finally achieve a reduction of the global electric energy use of the considered building. Starting from the provided thermal cooling load, different possible cooling chains (primary-to-final energy conversion chain) are considered in order to locate the thermodynamically more efficient one from an exergetic point of view. The internal air handler unit, which provides for the cooled and dehumidified air to the building, is fed by the energy obtained from different possible converters of renewable energy primary sources. Specifically, solar and hybrid photovoltaic-thermal (PV/T) panels coupled with an absorption refrigeration machine and with an ejector refrigeration cycle are analyzed. The study that has been carried on leads to identify the most convenient matching between final use and primary sources allowing to substantially reduce the global non-renewable energy consumption of the considered building.
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Clayton, Garrett M., and Joshua R. Fabian. "Spatial Feature Matching for Visual Odometry: A Parametric Study." In ASME 2013 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/dscc2013-3913.

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The goal of this paper is to perform a parametric study on a newly developed visual odometry algorithm for use with color-depth (RGB-D) camera pairs, such as the Microsoft Kinect. In this algorithm, features are detected in the color image and converted to 3D points using the depth image. These features are then described by their 3D location and matched across subsequent frames based on spatial proximity. The visual odometry is then calculated using a one-point inverse kinematic solution. The primary contribution of this work is the identification of critical operating parameters associated with the algorithm, the analysis of their effects on the visual odometry performance, and the verification of the analysis using experimentation.
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Pothos, Stamatios, Aaron Boomsma, Dan Troolin, Sayantan Bhattacharya, and Pavlos Vlachos. "PIV Uncertainty: Computational and Experimental Evaluation of the Peak Ratio Method." In ASME 2016 Fluids Engineering Division Summer Meeting collocated with the ASME 2016 Heat Transfer Summer Conference and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/fedsm2016-7926.

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Uncertainty quantification for planar PIV remains a challenging task. In the present study, we assess three methods that were recently described in the literature: primary peak ratio (PPR), mutual information (MI), and image matching (IM). Each method was used to calculate the uncertainty in a synthetic turbulent boundary layer flow and an experimental jet flow. In the experimental case, two PIV systems with common fields of view were used — one with a high dynamic range (which was considered as the true solution) and another with a magnification ratio of about four times less (which was considered the measurand). The high resolution PIV system was verified by comparing velocity records at a point with an LDV measurement system. PIV processing was performed with PRANA and Insight4G. In regards to the experimental flow, the PPR method performed best, followed by mutual information, and lastly image matching. This was due to better responses by PPR and MI of uncertainty to the spatially varying error distribution. Similar conclusions were made with respect to the synthetic test case.
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Alsubai, Shtwai, and Siobhán North. "A Prime Number Approach to Matching an XML Twig Pattern including Parent-Child Edges." In 13th International Conference on Web Information Systems and Technologies. SCITEPRESS - Science and Technology Publications, 2017. http://dx.doi.org/10.5220/0006225602040211.

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Fu, Ruiyun. "Specify the matching of motor drive and electric machine in prime mover emulators." In 2017 IEEE 12th International Conference on Power Electronics and Drive Systems (PEDS). IEEE, 2017. http://dx.doi.org/10.1109/peds.2017.8289173.

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Baud, Sébastien, and Philippe Velex. "Static and Dynamic Tooth Loading in Spur and Helical Geared Systems: Experiments and Code Validation." In ASME 2000 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/detc2000/ptg-14435.

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Abstract The primary objective of this study is to validate a specific finite element code aimed at simulated dynamic tooth loading in geared rotor systems. Experiments have been conducted on a high-precision single stage spur and helical gear reducer with flexible shafts mounted on hydrostatic or hydrodynamic bearings. The numerical model is based on classical elements (shaft, lumped stiffnesses, ...) and on an original gear element which accounts for non-linear time-varying mesh stiffness, gear errors and tooth shape modifications. External and parametric excitations are derived from the instantaneous contact conditions between the mating flanks by using an iterative contact algorithm inserted in a time-step integration scheme. In a first step, experimental and numerical results at low speeds are compared and it is demonstrated that the proposed tooth mesh interface model is valid. Comparisons are then extended to dynamic fillet stresses on both spur and helical gears between 50–6000 rpm on pinion shaft. Despite a localized problem in the case of spur gears with one particular bearing arrangement, the broad agreement between the experimental and numerical response curves proves that the model is representative of the dynamic behavior of geared systems.
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Ryou, Jeong Hoon, and Kenn Oldham. "Simulation Study and Experimental Testing of Foot-Terrain Dynamics in Piezoelectric Micro-Robots." In ASME 2010 Dynamic Systems and Control Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/dscc2010-4138.

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In micro-scale environment, contact forces such as adhesion and electrostatic forces, which are generally assumed to be negligible in general macro scale devices, affect the motions of MEMS devices significantly. This paper is an initial exploration of how such forces might influence the locomotion of multi-legged micro-robots, by matching the analytical dynamic simulations to the result from experiments on micro devices including a simple micro-cantilever beam and a bulk piezoelectrically-actuated micro-robotic prototype. Results imply that foot-terrain impacts focusing on primary effects related to electrostatic forces, adhesion forces, and an appropriate coefficient of restitution can provide a reasonable model of micro-scale behavior of a robotic foot.
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Bian, Liming, Kenneth W. Ng, Eric G. Lima, Prakash S. Jayabalan, Aaron M. Stoker, James L. Cook, Gerard A. Ateshian, and Clark T. Hung. "Functional Tissue Engineering of Articular Cartilage With Adult Chondrocytes." In ASME 2009 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2009. http://dx.doi.org/10.1115/sbc2009-206731.

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The concept of cartilage functional tissue engineering (FTE) has promoted the use of physiologic loading bioreactor systems to cultivate engineered tissues with load-bearing properties [1]. Prior studies have demonstrated that culturing agarose constructs seeded with primary bovine chondrocytes from immature joints, and subjected to dynamic deformation, produced equilibrium compressive properties and proteoglycan content matching the native tissue [2]. In the process of translating these results to an adult canine animal model, it was found that protocols previously successful with immature bovine primary chondrocytes did not produce the same successful outcome when using adult canine primary chondrocytes [3]. The objective of this study was to assess the efficacy of a modified FTE protocol using adult (canine) chondrocyte-seeded hydrogel constructs and applied dynamic loading.
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10

Pelletier, Evan, and Sean Brennan. "Diesel Engine Characterization and Performance Scaling via Brake Specific Fuel Consumption Map Dimensional Analysis." In ASME 2019 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/dscc2019-9110.

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Abstract The goal of this work is to develop easily generalized models of heavy duty truck engine maps that allow for approximate comparisons of engine performance, thus enabling fuel efficient matching of engines to a set of corresponding loads and routes. This is achieved by applying dimensional analysis to create a uniformly applicable, dimensionless Brake Specific Fuel Consumption (BSFC) map that fits the behavior of a wide range of diesel engines. A commonality between maps was found to occur when engine data is scaled by specific dimensional parameters that target data consistency among the primary operating points across engines. This common map highlights observable trends in engine performance based on the influence of these same parameters being scaled across engines. The resulting dimensionless engine map fits the minimum BSFC regions of four diesel engines to within 2.5 percent.
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