Literatura científica selecionada sobre o tema "Hamilton (Ont.) – History"

Crie uma referência precisa em APA, MLA, Chicago, Harvard, e outros estilos

Selecione um tipo de fonte:

Consulte a lista de atuais artigos, livros, teses, anais de congressos e outras fontes científicas relevantes para o tema "Hamilton (Ont.) – History".

Ao lado de cada fonte na lista de referências, há um botão "Adicionar à bibliografia". Clique e geraremos automaticamente a citação bibliográfica do trabalho escolhido no estilo de citação de que você precisa: APA, MLA, Harvard, Chicago, Vancouver, etc.

Você também pode baixar o texto completo da publicação científica em formato .pdf e ler o resumo do trabalho online se estiver presente nos metadados.

Artigos de revistas sobre o assunto "Hamilton (Ont.) – History"

1

Gagan, Rosemary R. "Mortality Patterns and Public Health in Hamilton, Canada, 1900–14". Articles 17, n.º 3 (5 de agosto de 2013): 161–75. http://dx.doi.org/10.7202/1017629ar.

Texto completo da fonte
Resumo:
In recent years a wide-ranging debate has focused on the origins and extent of the decline in mortality rates in Britain in the 18th century and in North America during the closing decades of the 19th century. Some historians suggest that the decrease was tied to a general improvement in living standards and in particular to better nutrition while others point to municipal public health measures carried out by vigilant medical health officers. This paper examines the experience of Hamilton, Ont., during a period of extreme urban and industrial expansion, 1900-14. The evidence, both qualitative and quantitative, suggests that these years were not a ''golden age" of public health: the health of Hamiltonians did not improve, and, in fact, mortality rates increased. Moreover, infants and children of the working class were the most obvious casualties of an inhospitable environment that hurt those least able to exert any degree of control over their circumstances. Public health was not a popular cause in the city, and as a consequence, much of the minimal progress that did occur was either fortuitous or the result of the exertions of one man, Dr James Roberts, the crusading medical health officer.
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Henretta, James A. ":One Nation under Debt: Hamilton, Jefferson, and the History of What We Owe". American Historical Review 114, n.º 2 (abril de 2009): 438. http://dx.doi.org/10.1086/ahr.114.2.438.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

Prasad, M. "Robert E. Wright. One Nation Under Debt: Hamilton, Jefferson, and the History of What We Owe". Enterprise and Society 11, n.º 3 (2 de junho de 2010): 641–42. http://dx.doi.org/10.1093/es/khq070.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

Ramos-Estebanez, Ciro, Maryo Kohen, Jonathan Pace, Alireza Bozorgi, Sunil Manjila, Vilakshan Alambyan, Ifeyinwa Nwankwo, Michael DeGeorgia, Nicholas C. Bambakidis e Faruk Orge. "Bedside optical coherence tomography for Terson’s syndrome screening in acute subarachnoid hemorrhage: a pilot study". Journal of Neurosurgery 130, n.º 2 (fevereiro de 2019): 517–24. http://dx.doi.org/10.3171/2017.7.jns171302.

Texto completo da fonte
Resumo:
OBJECTIVEApproximately 10% of patients with subarachnoid hemorrhage (SAH) become permanently, legally blind. The average cost of lifetime support and unpaid taxes for each blind person amounts to approximately $900,000. This study evaluates the feasibility and potential role of bedside optical coherence tomography (OCT) in Terson’s syndrome (TS) in patients with acute SAH (aSAH) and its potential role in blindness prevention.METHODSThe authors conducted an open-label pilot study, in which 31 patients with an angiographic diagnosis of aSAH were first screened for TS with dilated funduscopy and then with OCT in the acute phase and at 6-week follow-up visits. Outpatient mood assessments (Patient Health Questionnaire–depression module, Hamilton Depression Scale), and quality of life general (NIH Patient-Reported Outcomes Measurement Information System) and visual scales (25-item National Eye Institute Visual Functioning Questionnaire) were measured at 1 and 6 weeks after discharge. Exclusion criteria included current or previous history of severe cataracts, severe diabetic retinopathy, severe macular degeneration, or glaucoma.RESULTSOCT identified 7 patients with TS, i.e., a 22.6% incidence in our aSAH sample: 7 in the acute phase, including a large retinal detachment that was initially missed by funduscopy and diagnosed by OCT in follow-up clinic. Dilated retinal funduscopy significantly failed to detect TS in 4 (57.1%) of these 7 cases. Intraventricular hemorrhage was significantly more common in TS cases (85.7% vs 25%). None of the participants experienced any complications from OCT examinations. Neither decreased quality of life visual scale scores nor a depressed mood correlated with objective OCT pathological findings at the 6-week follow-up after discharge. There were no significant mood differences between TS cases and controls.CONCLUSIONSOCT is the gold standard in retinal disease diagnosis. This pilot study shows that bedside OCT examination is feasible in aSAH. In this series, OCT was a safe procedure that enhanced TS detection by decreasing false-negative/inconclusive funduscopic examinations. It allows early diagnosis of macular holes and severe retinal detachments, which require acute surgical therapy to prevent legal blindness. In addition, OCT aids in ruling out potential false-positive visual deficits in individuals with a depressed mood at follow-up.
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

DOW, DEREK A. "Under One Roof: A History of Waikato Hospital (Hamilton, NZ: Half Court Press, 2009). ISBN 978-0-473-15863-7 (PB). 518pp." Health and History 13, n.º 1 (2011): 115–17. http://dx.doi.org/10.1353/hah.2011.0029.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

Brownlee, W. Elliot. "One Nation under Debt: Hamilton, Jefferson, and the History of What We Owe. By Robert E. Wright (New York, McGraw Hill, 2008) $27.95". Journal of Interdisciplinary History 40, n.º 1 (julho de 2009): 114–15. http://dx.doi.org/10.1162/jinh.2009.40.1.114.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

Barker-Collo, Suzanne, Alice Theadom, Shanthi Ameratunga, Kelly Jones, Amy Jones, Nicola Starkey e Valery L. Feigin. "Prevalence and Predictors of Post-traumatic Stress Disorder in Adults One Year Following Traumatic Brain Injury: A Population-based Study". Brain Impairment 14, n.º 3 (13 de novembro de 2013): 425–35. http://dx.doi.org/10.1017/brimp.2013.27.

Texto completo da fonte
Resumo:
Objective: Experiencing a traumatic brain injury (TBI) may increase the risk of post-traumatic stress disorder (PTSD); however, this has not been examined in a population-based context. This study examined prevalence and predictors (demographic and injury related) of PTSD 1 year after TBI in a population-based sample.Method: A population-based TBI incidence and outcomes study was conducted in Hamilton and Waikato Districts of New Zealand over 12 months (February 2011–March 2012) with follow-up at 1 year. The relationship of baseline demographic and TBI characteristics to PTSD (Post-traumatic Diagnostic Scale; PDS) was examined in 431 adults (>15 years old) 1 year post-TBI.Results: On average, participants reported three PTSD symptoms, with heightened arousal being the most commonly reported. Nearly 18% of participants met criteria for PTSD. These participants were significantly more likely to report pre-TBI history of depression/anxiety, and to have drugs implicated in the injury. Regression indicated that female gender, increased loss of consciousness (LOC) and intentional injury predicted PTSD severity (R2 = .109, F[6, 294] = 6.007, p < .001) and number of symptoms (R2 = .098, F[3, 297] = 4.562, p < .001).Conclusion: PTSD occurred as a long-term sequela in 18% of participants after TBI, with increased PTSD severity and greater number of symptoms associated with female gender, longer LOC and intentional injury. These findings have implications for identification and targeting of assessment and intervention resources towards those at greatest risk of PTSD following TBI.
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Rousseau, Peter L. "One Nation Under Debt: Hamilton, Jefferson, and the History of What We Owe. By Robert E. Wright. New York: McGraw Hill, 2008. Pp. vii, 419. $28, cloth." Journal of Economic History 69, n.º 02 (26 de maio de 2009): 606. http://dx.doi.org/10.1017/s0022050709000977.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

Vietor, R. H. K. "One Nation under Debt: Hamilton, Jefferson, and the History of What We Owe. By Robert E. Wright. (Boston: McGraw Hill, 2008. x, 419 pp. $27.95, ISBN 978-0-07-154393-4.)". Journal of American History 95, n.º 3 (1 de dezembro de 2008): 827. http://dx.doi.org/10.2307/27694409.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

Prasad, Monica. "Robert E. Wright. One Nation Under Debt: Hamilton, Jefferson, and the History of What We Owe. New York: McGraw-Hill, 2008. 256 pp. ISBN 978-0071-54393-4, $27.95 (cloth)." Enterprise & Society 11, n.º 3 (setembro de 2010): 641–42. http://dx.doi.org/10.1017/s1467222700009332.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.

Teses / dissertações sobre o assunto "Hamilton (Ont.) – History"

1

Hay, J. A. "Trends in policing : a case study of the Hamilton police 1900-1973 /". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0029/NQ66212.pdf.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.

Livros sobre o assunto "Hamilton (Ont.) – History"

1

Margaret, Houghton, ed. First here. Burlington, Ont: North Shore Pub., 2008.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Stott, Rosalie Mary. Hamilton's doctors 1863-1935: Guardians of the city's health. Hamilton, Ont: Hamilton Academy of Medicine Foundation and Hamilton Academy of Medicine, 1995.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

Stott, Rosalie Mary. Hamilton's doctors 1863-1935: Guardians of the city's health. Hamilton, Ont: Hamilton Academy of Medicine and the Hamilton Academy of Medicine Foundation, 1995.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

Buchanan, W. Watson. Scottish immigrants in Hamilton, Ontario, Canada: Their onomastic legacy. Toronto, ON: Pro Familia Pub., 2005.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Buchanan, W. Watson. Scottish immigrants in Hamilton, Ontario, Canada: Their onomastic legacy. Toronto: Pro Familia Pub., 2004.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

Gibbon, Mary. A history of St. Stephen-on-the-Mount, Hamilton, Ontario: The first seventy-five years. [S.l: s.n., 1989.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

Laking, Leslie. Love, sweat and soil: A history of Royal Botanical Gardens from 1930 to 1981. [Hamilton, Ont.]: Royal Botanical Gardens Auxiliary, 2006.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Love, sweat and soil: A history of Royal Botanical Gardens from 1930 to 1981. Hamilton, ON: Auxiliary of Royal Botanical Gardens, 2007.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

Greenfield, J. Katharine. Hamilton Public Library, 1889-1963: A celebration of vision and leadership. Hamilton, Ont: Hamilton Public Library, 1989.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

Ito, Roy. Hamilton Japanese United Church: 1946-1996, 50th anniversary. Hamilton, Ont: R. Ito, 1996.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.

Capítulos de livros sobre o assunto "Hamilton (Ont.) – History"

1

Carrington, Ben. "Can the Formula One Driver Speak? Lewis Hamilton, Race and the Resurrection of the Black Athlete". In The History and Politics of Motor Racing, 355–84. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-22825-4_15.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

"Introduction: History Is Happening in Manhattan". In Historians on Hamilton, 1–14. Rutgers University Press, 2019. http://dx.doi.org/10.36019/9780813590332-001.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

"13. Who Tells Your Story?: Hamilton as a People’s History". In Historians on Hamilton, 277–96. Rutgers University Press, 2019. http://dx.doi.org/10.36019/9780813590332-014.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

"9. From The Black Crook to Hamilton: A Brief History of Hot Tickets on Broadway". In Historians on Hamilton, 187–221. Rutgers University Press, 2019. http://dx.doi.org/10.36019/9780813590332-010.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Allen, Nicholas. "Fluidity and Form in Hamilton, Banville, and Enright". In Ireland, Literature, and the Coast, 220–36. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198857877.003.0011.

Texto completo da fonte
Resumo:
This chapter offers readings of three recent Irish novels that take water, the coast, history, and family as their subject: Hugo Hamilton’s The Speckled People, first published in 2003; John Banville’s The Sea, which won the Booker Prize when it was published in 2005; and Anne Enright’s The Gathering, which also won the Booker when it was published in 2007. The chapter explores these novels as experiments in a liquid prose whose porous narratives complicate ideas of memory and belonging. Mournful and resilient, The Gathering is one of the best written and most relentless novels in modern Irish fiction. Like The Speckled People and The Sea, it is speculative and uncertain, Enright’s reflections on family and attachment shaped, like those of Hamilton and Banville, by an intense awareness of water as a resource for imagery and characterization capable of representing the complexity of the evaporating moment.
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

Sáez, Elena Machado. "In Pursuit of Property and Forgiveness". In Critical Dialogues in Latinx Studies, 332–43. NYU Press, 2021. http://dx.doi.org/10.18574/nyu/9781479805198.003.0026.

Texto completo da fonte
Resumo:
Lin-Manuel Miranda’s musicals, In the Heights and Hamilton, are the product of a complex negotiation with the institution of Broadway and its historic (mis)representation of people of color. The musicals ambivalently balance a counternarrative to a history of race and class stereotypes on the Broadway stage with the goal of convincing the predominantly white, highly educated tourists in attendance that the “other” is one of “us.” Both musicals display an ambivalence about the efficacy of the affective strategies used to educate the spectator. The symbolic conflict between the value of community versus capitalism becomes articulated using literal and rhetorical references to blackness. The dynamics of choosing profit over people within the geopolitical locale of New York City ultimately trouble the work of creating audience empathy within Lin-Manuel Miranda’s In the Heights and Hamilton.
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

Cerva, Rita, e Francesca R. Dani. "Social parasitism and its evolution in Polistes". In Natural History and Evolution of Paper-Wasps, 98–112. Oxford University PressOxford, 1996. http://dx.doi.org/10.1093/oso/9780198549475.003.0005.

Texto completo da fonte
Resumo:
Abstract Wasps in general, and Polistes in particular, constitute for West-Eberhard (1991) a group of organisms especially suited to inspire and inform the study of social evolution. Not by chance was Polistes one of the first groups on which kin selection theory was tested (Hamilton 1964a and b). Though this theory is today the most accredited for explaining the origin of eusociality, it is possible that various selective factors may have operated together in determining its several appearances, making a single explanation unlikely (West-Eberhard 1975; Andersson 1984; Brockmann 1984).
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Bernstein, R. B. "4. Legacies". In The Founding Fathers: A Very Short Introduction, 84–114. Oxford University Press, 2015. http://dx.doi.org/10.1093/actrade/9780190273514.003.0004.

Texto completo da fonte
Resumo:
“Legacies: What history has made of the founding fathers” shows that the founding fathers’ history has unfolded in two ways—one being their developing role in the American people’s historical memory, the other being their evolving place in history as interpreted by generations of historians. It also highlights how posterity has chosen individuals to revere or to chastise. The reputations of some founding fathers (George Washington and Benjamin Franklin) have remained consistently high; the reputations of others (Thomas Jefferson and Alexander Hamilton) have risen and fallen in historical cycles; others (John Adams, James Madison, and John Jay) have languished in neglect, only to be rediscovered and restored to the national pantheon.
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

Strassmann, Joan E. "Selective altruism towards closer over more distant relatives in colonies of the primitively eusocial wasp, Polistes". In Natural History and Evolution of Paper-Wasps, 190–201. Oxford University PressOxford, 1996. http://dx.doi.org/10.1093/oso/9780198549475.003.0011.

Texto completo da fonte
Resumo:
Abstract One of the predictions of Hamilton's theory of inclusive fitness is that individuals should use relatedness information in behavioural decision making. In Polistes a number of circumstances give individuals the opportunity to favour certain individuals over others on the basis of genetic relatedness.
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

Kessler-Harris, Alice. "From Household Manufactures to Wage Work". In Out To Work: A History of Wage-Earning Women in the United States, 20–44. Oxford University PressNew York, NY, 2003. http://dx.doi.org/10.1093/oso/9780195157093.003.0002.

Texto completo da fonte
Resumo:
Abstract The American Revolution and the period that followed it offered both ideological and economic lessons to those who cared to listen. Alongside grand expostulations about individual liberty and freedom from tyranny lay challenges posed by more developed industrial nations. Britain and France threatened to flood the new nation with goods that would stifle American economic initiative and create permanent dependence. A way had to be found to create an economic foundation sturdy enough to protect citizens from both the armed might and the insidious trading pressures of other nations. To do this, Federalists such as Alexander Hamilton felt that the United States had to develop a balanced economy. In a society still almost totally agrarian, still rooted in the conviction that land was the basis of an independent republic, such views meant convincing an unwilling populace that nonagricultural production was desirable and necessary. No one wanted to threaten the society’s agrarian base, or to deprive the land of the labor that would both extend America’s borders and coax from it maximal yields. And no one wanted to reproduce the poverty and degradation of English industrialism. But there were many who, with Hamilton and his ally, manufacturing promoter Tench Coxe, believed the new nation could avoid the evils of industrialization and yet derive the benefits of national self-sufficiency. Industrial growth, they believed, would complement and support a rich agricultural production and an independent national economy.
Estilos ABNT, Harvard, Vancouver, APA, etc.

Trabalhos de conferências sobre o assunto "Hamilton (Ont.) – History"

1

Ji, Ming, e Kazuaki Inaba. "Forward and Inverse Problems in Transient Responses of Plates Under Impact Loadings". In ASME 2022 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/pvp2022-83685.

Texto completo da fonte
Resumo:
Abstract By clarifying the free vibration and transient response of the flat plate in contact with the fluid, it is useful for the design of systems such as piping and plants and the development of innovative equipment. We have been studying free vibration and transient response of thin and thick plates and shells. In this paper, transient responses of plates under a point impact load are studied. The first-order plate theory is used to derive the equations of motion by Hamilton’s principle. The out of plane dominated vibration and in-plane dominated vibration can be decoupled. The transient displacement and strain histories are obtained using the method of mode superposition. The low density and high compliance of Polyvinylidene Fluoride (PVDF) films make them a suitable method to measure the external dynamic force history. The force history is applied to conduct the theoretical analysis. The strain histories obtained from the theoretical analysis are compared with those obtained from experiments. Moreover, the effect of the thickness on the displacement and strain histories is studied. In addition, the inverse problems of identifying the impact force history are investigated. The transfer function between the impact force and measured responses: displacement and strain histories, are obtained from the theoretical analysis. A deconvolution technique using wavelet approach for reconstructing impact force is used. The reconstructed impact force is in good agreement in with the measured force using PVDF films.
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Carmichael, Ben, Gary Frey e S. Nima Mahmoodi. "Numerical Analysis of the Tapping Atomic Force Microscopy on a Viscoelastic Sample". In ASME 2014 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/dscc2014-5896.

Texto completo da fonte
Resumo:
Mechanical characterization of thin samples is now routine due to the prominence of the Atomic Force Microscope. Advances in amplitude modulation techniques have allowed for accurate measurement of a sample’s elastic properties by interpreting the changes in the vibration of a cantilevered beam in intermittent contact. However, the nonlinearities associated with contact complicate attempts to find an accurate time-history for the beam. Furthermore, the inclusion of viscous effects, common to soft samples, puts an explicit solution even farther from reach. A numerical method is proposed that analyzes the time-history and frequency response of a microcantilever beam with a viscoelastic end-condition. The mathematics can be simplified by incorporating the viscoelastic end-condition into the equation of motion directly by modeling it as a distributed load. A forcing function can then be derived from the Standard Linear Solid model of viscoelasticity and implemented in the non-conservative work term of Hamilton’s principle. The Galerkin method can separate the resulting nonlinear equation of motion into time and space components. Performing a numerical analysis of the time factor equation provide the beam’s response over time. The results demonstrate the distinctive effects of viscoelasticity and periodic contact on the beam’s motion and provide the framework for the determination of viscous properties using dynamic techniques.
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

Zen, Giampaolo, e Sinan Mu¨ftu¨. "Stability of an Axially Accelerating String Subjected to Frictional Guiding-Forces". In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63863.

Texto completo da fonte
Resumo:
The dynamic response of an axially translating continuum subjected to the combined effects of a pair of spring supported frictional guides and axial acceleration is investigated; such systems are both non-conservative and gyroscopic. The continuum is modeled as a tensioned string translating between two rigid supports with a time dependent velocity profile. The equations of motion are derived with the extended Hamilton’s principle and discretized in the space domain with the finite element method. The stability of the system is analyzed with the Floquet theory for cases where the transport velocity is a periodic function of time. Direct time integration using an adaptive step Runge-Kutta algorithm is used to verify the results of the Floquet theory. Results are given in the form of time history diagrams and instability point grids for different sets of parameters such as the location of the stationary load, the stiffness of the elastic support, and the values of initial tension. This work showed that presence of friction adversely affects stability, but using non-zero spring stiffness on the guiding force has a stabilizing effect.
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

Ahmadian, M. T., Sh Ghorbani, K. Firoozbakhsh e A. Barari. "Vibration and Dynamic Analysis of Oil Well Drillstring Considering Coupled Axial and Torsional Effects Using Cylindrical Superelement". In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-62837.

Texto completo da fonte
Resumo:
In this paper axial and torsional vibrations of a drillstring are studied using cylindrical superelement. Drillstring vibration equation is derived by calculating kinetic and potential energy and work done by external forces on drillstring, and utilizing Hamilton’s principle. The model is analyzed by implementing finite element technique with consideration drillstring weight, centrifugal force due to rotation of drillstring, axial force resulting from bit with the formation contact and torsional torque caused by the stick-slip phenomenon. To calculate the vibrational response of drillstring, a computational finite element scheme was developed. For a typical case of oil well drillstring, the time response of axial and torsional vibrations of bit are presented. Also, time history of rotational speed of bit and frictional torque caused by the stick-slip phenomenon on bit, are calculated. Very good agreement is found between findings with implementing superelement and those were reported in the literature. The time consumption by conventional finite element method is very larger than implementing cylindrical superelement for the same problem. This indicates by implementing a few cylindrical superelements, the same results in much smaller computer time than the conventional finite element method, can be extracted.
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Yiqian, Yang, Zhang Duan, Zhou Hongye, Ma Hezhong e Wang Tsunkuei. "Nonlinear Dynamic Snap-Through Buckling of Composite Laminated Spherical Shells". In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-1194.

Texto completo da fonte
Resumo:
Abstract In this paper, a general, strain-consistent, third-order displacement field of shells is proposed. On this basis, the nonlinear theory of composite laminated shells including third-order transverse shear deformation and rotary inertia is developed. Hamilton’s variational principle is used to derive the nonlinear static and dynamic governing differential equations and the corresponding boundary conditions of composite laminated anisotropic general shells under the orthogonal curvilinear coordinates. And the form of spherical shells is degenerated. The model accounts for the cubic variations of the in-plane displacements through the thickness (thus, does not require any shear correction coefficients), stretching of transverse normals, the von karman nonlinear strain-displacement relations, initial geometric imperfection, rotary inertia, elastic foundations and viscous damping in order to simulate the real structures. The corresponding constitutive equations of composite laminated shells are derived. This paper uses the global orthogonal interior collocation method in space domain and the unconditionally stable Newmark-Beta and Houbolt numerical integration schemes in time domain to comprehensively investigate dynamic axisymmetric behavior of laminated cylindrically orthotropic composite shallow spherical shells subjected to suddenly applied loads. The sufficient condition for dynamic buckling, from the energy transfer consideration, is defined as the smallest load for which an unbounded motion is initiated at one generalized displacement, and the pressure corresponding to a sudden jump in the maximum volume change in the time history of the shell structure is taken as dynamic buckling pressure herein. For the sake of comparison, the results of first-order transverse shear and classical shell theories are presented in this paper. Results of detailed parametric imperfection, the total number of layers, lamination schemes, viscous damping, loading type and loading duration, the loaded area, loading rates, Winkler-Pasternak elastic foundations, opening semi-angle of circular hole, aritifical viscosity of difference scheme, boundary conditions, rotary inertia, transverse shear deformation, h/R (thickness/radius ratio of shells) and dynamic buckling criterion on the buckling loads. Previously the researches on shallow spherical shells were based on shallow shell assumptions. But in this paper, these assumptions are abandoned, thus the theoretical model can be used to study shallow spherical shells, as well as hemi-spherical shells and complete spherical shells. The semi-analytical solutions offered by this paper will provide bench-mark numerical results to test the accuracy of numerical methods. This paper clears up the confused ideas about the different effects of transverse shear deformation on the shallow and deep spherical shells in references.
Estilos ABNT, Harvard, Vancouver, APA, etc.

Relatórios de organizações sobre o assunto "Hamilton (Ont.) – History"

1

Evans, Tyler, Eric Hileman, Melanie Boudreau, Bronson Strickland e Raymond Iglay. Capture history data from hair snare sampling of wild pigs in Mississippi. Mississippi State University, 2024. http://dx.doi.org/10.54718/kxka1060.

Texto completo da fonte
Resumo:
Capture histories of wild pigs (Sus scrofa) identified using nuclear DNA markers from hair snare samples activated on the Sam D. Hamilton Noxubee National Wildlife Refuge in Mississippi between 2021 and 2022. Hair snares were active for 8 weeks (occassions) with non-grain attractants placed at the center of each snare. Dat includes unique pig identifiers (Pig_ID), capture histories (Capture_Occassion), and associated capture year (Group).
Estilos ABNT, Harvard, Vancouver, APA, etc.
Oferecemos descontos em todos os planos premium para autores cujas obras estão incluídas em seleções literárias temáticas. Contate-nos para obter um código promocional único!

Vá para a bibliografia