Relevant bibliographies by topics / Incremental dynamic analysis

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

Academic literature on the topic 'Incremental dynamic analysis'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 March 2023

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Journal articles on the topic "Incremental dynamic analysis"

1

Vamvatsikos, Dimitrios, and C. Allin Cornell. "Incremental dynamic analysis." Earthquake Engineering & Structural Dynamics 31, no. 3 (2002): 491–514. http://dx.doi.org/10.1002/eqe.141.

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Lachanas, Christos G., and Dimitrios Vamvatsikos. "Rocking incremental dynamic analysis." Earthquake Engineering & Structural Dynamics 51, no. 3 (December 13, 2021): 688–703. http://dx.doi.org/10.1002/eqe.3586.

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Vamvatsikos, Dimitrios, and C. Allin Cornell. "Applied Incremental Dynamic Analysis." Earthquake Spectra 20, no. 2 (May 2004): 523–53. http://dx.doi.org/10.1193/1.1737737.

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We are presenting a practical and detailed example of how to perform incremental dynamic analysis (IDA), interpret the results and apply them to performance-based earthquake engineering. IDA is an emerging analysis method that offers thorough seismic demand and capacity prediction capability by using a series of nonlinear dynamic analyses under a multiply scaled suite of ground motion records. Realization of its opportunities requires several steps and the use of innovative techniques at each one of them. Using a nine-story steel moment-resisting frame with fracturing connections as a test bed, the reader is guided through each step of IDA: (1) choosing suitable ground motion intensity measures and representative damage measures, (2) using appropriate algorithms to select the record scaling, (3) employing proper interpolation and (4) summarization techniques for multiple records to estimate the probability distribution of the structural demand given the seismic intensity, and (5) defining limit-states, such as the dynamic global system instability, to calculate the corresponding capacities. Finally, (6) the results can be used to gain intuition for the structural behavior, highlighting the connection between the static pushover (SPO) and the dynamic response, or (7) they can be integrated with conventional probabilistic seismic hazard analysis (PSHA) to estimate mean annual frequencies of limit-state exceedance. Building upon this detailed example based on the nine-story structure, a complete commentary is provided, discussing the choices that are available to the user, and showing their implications for each step of the IDA.
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dos Santos, Ketson R. M., Ioannis A. Kougioumtzoglou, and André T. Beck. "Incremental Dynamic Analysis: A Nonlinear Stochastic Dynamics Perspective." Journal of Engineering Mechanics 142, no. 10 (October 2016): 06016007. http://dx.doi.org/10.1061/(asce)em.1943-7889.0001129.

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Mofid, Massood, Panam Zarfam, and Babak Raiesi Fard. "On the modal incremental dynamic analysis." Structural Design of Tall and Special Buildings 14, no. 4 (2005): 315–29. http://dx.doi.org/10.1002/tal.271.

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Vamvatsikos, Dimitrios. "Performing incremental dynamic analysis in parallel." Computers & Structures 89, no. 1-2 (January 2011): 170–80. http://dx.doi.org/10.1016/j.compstruc.2010.08.014.

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Christovasilis, Ioannis P., Andre Filiatrault, Michael C. Constantinou, and Assawin Wanitkorkul. "Incremental dynamic analysis of woodframe buildings." Earthquake Engineering & Structural Dynamics 38, no. 4 (April 10, 2009): 477–96. http://dx.doi.org/10.1002/eqe.864.

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A., Zafeirakos, Gerolymos N., and Drosos V. "Incremental dynamic analysis of caisson–pier interaction." Soil Dynamics and Earthquake Engineering 48 (May 2013): 71–88. http://dx.doi.org/10.1016/j.soildyn.2013.01.021.

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Asgarian, Behrouz, Mahmood Yahyai, M. Mirtaheri, Hamid Rahmani Samani, and Pejman Alanjari. "Incremental dynamic analysis of high-rise towers." Structural Design of Tall and Special Buildings 19, no. 8 (May 20, 2009): 922–34. http://dx.doi.org/10.1002/tal.518.

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Goda, Katsuichiro. "Record selection for aftershock incremental dynamic analysis." Earthquake Engineering & Structural Dynamics 44, no. 7 (October 22, 2014): 1157–62. http://dx.doi.org/10.1002/eqe.2513.

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Dissertations / Theses on the topic "Incremental dynamic analysis"

1

Kruep, Stephanie Jean. "Using Incremental Dynamic Analysis to Visualize the Effects of Viscous Fluid Dampers on Steel Moment Frame Drift." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/34122.

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This thesis presents the details of a study regarding both the use of linear viscous fluid dampers in controlling the interstory drift in steel moment frames, and the use of incremental dynamic analysis as a method of visualizing the behavior of these moment frames when subjected to seismic load effects. Models of three story and nine story steel moment frames were designed to meet typical strength requirements for office buildings in Seattle, Washington. These models were intentionally designed to violate seismic interstory drift restrictions to test the ability of the linear viscous fluid dampers to reduce these drifts to the point of code compliance. Dampers were included in one bay of every story in each model. These devices were used to produce total structural damping ratios of 5%, 10%, 20%, and 30% of critical. Undamped, traditional stiffness controlled models of both three stories and nine stories were also created for comparison purposes. Incremental dynamic analysis was used to subject these models to ten ground motions, each scaled to twenty incremental levels. Two new computer applications were written to facilitate this process. The results of these analyses were studied to determine if the linear viscous fluid dampers were able to cause compliance with codified drift limits. Also, incremental dynamic analysis plots were created to examine the effects of the dampers on structural behavior as damping increased from inherent to 30% of critical. It was found that including linear viscous fluid dampers in steel moment frame design can satisfactorily control interstory drift, and incremental dynamic analysis is a beneficial tool in visualizing dynamic structural behavior.
Master of Science
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2

De, Samrat. "Effect of Variation of the Systemic Parameters on the Structural Response of Single Degree of Freedom Systems Subjected to Incremental Dynamic Analysis." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/9730.

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This thesis presents the results of a study of the effect of variations of systemic parameters on the structural response of single degree of freedom systems subjected to Incremental Dynamic Analysis. The systemic parameters are mass, stiffness, damping, yield strength and geometric stiffness. Each of these parameters was varied one at a time while the other values were kept constant. For each variation of parameters a set of single-record IDA curves was obtained. Five to six ground motions were used for this study to generate the single-record IDA curves. These ground motions were scaled prior to their application on the structure. The scaling factor was based on the spectral acceleration at the fundamental frequency of the structure at 5% of critical damping. The scale factor is affected if the system parameters are changed. An important issue for this study was whether to persist with scaling corresponding to the median value from the range of the values of the parameter or to update the scaling according to the system. Based on some tests using both methods, the median scaling approach was found to be more suitable. The IDA curves for variation of parameters were then investigated to identify any trends that may help in qualitatively predicting the response of a system relative to another system. The response was measured by the peak displacement and the maximum base shear of the system. A clear trend was identified when the damping or the yield strength was varied. However, no definite trend was observed when the material stiffness or the geometric stiffness of the system was varied.
Master of Science
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Atlayan, Ozgur. "Effect of Viscous Fluid Dampers on Steel Moment Frame Designed for Strength and Hybrid Steel Moment Frame Design." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/32318.

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The first purpose of this research is to investigate the effect of added viscous fluid dampers on a nine story special steel moment frame designed for strength in Seattle. At the initial stages of the work, knowing the fact that moment frames are almost always controlled by drift, it was thought that two different moment frames, controlled by strength or controlled by drift (stiffness), could be designed in Seattle and the effect of additional dampers on the structural behavior of the strength controlled design could be studied.

However, since ASCE 7 permits determining the elastic drifts by using the seismic design forces based on the computed fundamental period of the structure, without the upper limit (CuTa), the strength controlled design satisfied the drift limit requirements of ASCE 7. Although the strength controlled design meets the drift requirements, the stability checks of both ASCE 7 and the AISC Seismic Design Manual were not satisfied. Thus, the strength controlled frame was redesigned to meet the stability requirements, and the process is called stability controlled design.

By adding supplemental dampers to the strength controlled design, it was expected that the seismic drift would be controlled and a better structural behavior would be obtained in terms of dynamic stability. Incrementral Dynamic Analysis (IDA) was implemented to investigate the benefits of the dampers on the structural behavior. Using ten different earthquakes scaled up to a maximum target multiplier two, with ten increments, damage measures such as interstory drift, residual displacement, IDA dispersion, base shear, and roof displacement were studied. Using IDA dispersion, the effect of dampers on dynamic instability was also investigated in this study.

As a result, it was found that as the damping of the structure increases with the help of added dampers, the structural response gets better. Maximum and residual roof displacements, interstory drifts, and IDA dispersion decreases with increasing damping. In addition, by using supplemental damping, most of the collapses that occur for the inherently damped frames are prevented.

The second purpose of this research is to develop an improved â Hybridâ moment frame without added damping but by controlling the inelastic behavior. Hybrid Frames were designed as the combination of three different moment frames: Special, Intermediate and Ordinary Moment Frames (SMF, IMF, OMF). The design procedure of each bay, which corresponds to different moment frame systems, follows the rules of the related moment frame for that bay. By varying the plastic hinge capacities across the same level stories, four different Hybrid Frame designs were obtained. Nonlinear static pushover analysis was applied to these frames, and as expected, the more reduction in the plastic capacity of the Hybrid Frame, the earlier the pushover curve starts yielding and the later the negative post yield stiffness of the pushover curve was reached. It was observed that the effect of early plastic hinge forming in the frame, which caused inelastic hysteretic damping, and the relatively late formation of negative post yield stiffness resulted in a better dynamic behavior.

As a result of the IDA studies, as the frames become more â hybridâ , the residual displacements decrease significantly and then collapses are even prevented. This is considered as the positive effect of reaching the negative post yield stiffness late. The residual displacement was reduced for low intensity gentle earthquakes. The ductility demand IDA study proves that as the frames become more hybrid, the ductility demand increases for the special detailing frame, where plastic capacity was reduced, and decreases for the ordinary detailing frame, where the plastic capacity was increased. The Hybrid Frame system is expected to perform better than the traditional special moment frame, and to be more economical than the special moment frame because of the limited amount of special detailing.
Master of Science

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Chan, Gordon. "Nonlinear Analysis of Multistory Structures Using "NONLIN"." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/31430.

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During the months I have been at Virginia Tech, I have experienced the most exciting time of my life. There are many persons who helped me to pursue my Masterâ s degree. I would like to take this opportunity to express my appreciations to them. I would like to thank my advisor and committee chairman, Dr Finley A. Charney. He has supported me for the entire duration of this project with all of his efforts. Without his assistance, it would have been very difficult for me to learn so many concepts in the field of nonlinear dynamic analysis and practical earthquake engineering. I would also like to acknowledge my other committee members, Dr. Raymond Plaut and Dr. W. Samuel Easterling, for taking the time to review the thesis and providing valuable insights and feedback on this thesis. I would like to thank my father, Chan Kwok Fung, who encouraged me to pursue my Master Degree, and my mother, Yu Yuk Ping, who brought me to life. I would like to thank my sister, Doris Chan, and my girlfriend, Ka Man Chan, for supporting and encouraging me during the past two years at Virginia Tech. Finally, I would like to give thanks to the rest of my family, friends, professors, and fellow graduate students for their help and encouragement during my stay at Virginia Tech.
Master of Science
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Oesterle, Michael Gerhardt. "Use of Incremental Dynamic Analysis to Assess the Performance of Steel Moment-Resisting Frames with Fluid Viscous Dampers." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/31536.

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This thesis presents the results of a study that uses Incremental Dynamic Analysis to assess the seismic performance of steel moment-resisting frames with fluid viscous dampers subjected to earthquake ground motions. The study systematically investigated the effects of linear and nonlinear dampers on the response of steel moment-resisting frames to earthquakes that varied in intensity and type. Both near-field and far-field motions were considered. Two different types of nonlinear dampers were investigated; one had a hardening and the other had a softening force-velocity relationship. The nonlinear dampers were calibrated to the linear dampers so that there was a basis of comparison. Maximum damper displacement is one of the parameters of the calibration, and it was varied to investigate its effect on structural response. Several nonlinear inelastic time history analyses were performed to obtain responses, such as peak base shear, peak interstory drift, or residual displacement index, which were plotted versus earthquake intensity to create individual IDA curves. Sets of related IDA curves provide a useful summary of the structural behavior for a wide range of variables. IDA curves for the tests with different damping types are presented. The results show that for both near-field and far-field ground motions the nonlinear dampers with a hardening force-velocity relationship are best suited to reduce undesirable drifts and residual displacements; however, these reductions come at the cost of high base shear forces.
Master of Science
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Bélec, Gilbert. "Seismic Assessment of Unreinforced Masonry Buildings In Canada." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/34301.

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Unreinforced masonry (URM) structures have shown tobe susceptible to significant damage during strong earthquakes. Vulnerability assessment of URM buildings is needed so that appropriate mitigation strategies can be implemented. The existing Canadian practice consists of rapid seismic screening of buildings to assign priorities for further and more refined assessments, followed by refined analysis of individual critical buildings. The current seismic screening procedure, from 1992, is based on qualitative observations of seismic vulnerability, enabling the assignment of seismic priority indices, quantified on the basis of expert opinion and experience. More refined tools are needed for seismic vulnerability assessment of URM buildings in Canada, based on the current Canadian seismic hazard values. The objective of the research project is to fulfill these needs by developing fragility curves that provide a probabilistic assessment of different levels of building performance under different intensities ofeastern and western seismicity. Using an inventory of over 50,000 structures, a seismic assessment of typical low-rise and mid-rise URM structures located in eastern and western Canada was carried out. The required analyses were done using applied element method software which effectively modeled the in-plane and out-of-plane behaviour of masonry walls. Using incremental dynamic analysis, fragility curves were developed to reflect the capacity of URM structures with a wide variety of selected structural and ground motion parameters. The results were verified against available fragility information in the literature. They show the significance of selected parameters, while providing effective tools for seismic vulnerability assessment of URM buildings in eastern and western Canada.
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Cavigli, Marco. "In-Plane cyclic behavior of substandard confined masonry: full-scale experiments, finite elements modeling and incremental dynamic analysis." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/5503/.

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Tahir, Haseeb. "Development of Fragility Curve Database for Multi-Hazard Performance Based Design." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/71794.

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There is a need to develop efficient multi-hazard performance based design (PBD) tools to analyze and optimize buildings at a preliminary stage of design. The first step was to develop a database and it is supported by five major contributions: 1) development of nomenclature of variables in PBD; 2) creation of mathematical model to fit data; 3) collection of data; 4) identification of gaps and methods for filling data in PBD; 5) screening of soil, foundation, structure, and envelope (SFSE) combinations.. A unified nomenclature was developed with the collaboration of a multi-disciplinary team to navigate through the PBD. A mathematical model for incremental dynamic analysis was developed to fit the existing data in the database in a manageable way. Three sets of data were collected to initialize the database: 1) responses of structures subjected to hazard; 2) fragility curves; 3) consequence functions. Fragility curves were critically analyzed to determine the source and the process of development of the curves, but structural analysis results and consequence functions were not critically analyzed due to lack of similarities between the data and background information respectively. Gaps in the data and the methods to fill them were identified to lay out the path for the completion of the database. A list of SFSE systems applicable to typical midrise office buildings was developed. Since the database did not have enough data to conduct PBD calculations, engineering judgement was used to screen SFSE combinations to identify the potential combinations for detailed analysis. Through these five contributions this thesis lays the foundation for the development of a database for multi- hazard PBD and identifies potential future work in this area.
Master of Science
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Spears, Paul Wesley. "Parameters Influencing Seismic Structural Collapse with Emphasis on Vertical Accelerations and the Possible Related Risks for New and Existing Structures in the Central and Eastern United States." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/42793.

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This thesis presents the results of basically two separate studies. The first study involved identifying structural and earthquake parameters that influenced seismic structural collapse. The parameter study involved nonlinear dynamic analyses using single-degree-of-freedom (SDOF) bilinear models. Four parameters were associated with the SDOF models â the lateral stiffness, the post-yield stiffness ratio, the yield strength, and the stability ratio (P-Delta effects). Then, three parameters were associated with the ground motions â the records themselves, the lateral ground motion scales, and the vertical ground motion scales.

From the parameter study, it was found that the post-yield stiffness ratio augmented by P-Delta effects (rp) in conjunction with the ductility demand was the best predictor of collapse. These two quantities include all four structural parameters and the seismic displacement demands. It was also discovered in the parameter study that vertical accelerations did not significantly influence lateral displacements unless a given combination of model and earthquake parameters was altered such that the model was on the verge of collapsing.

The second study involved Incremental Dynamic Analysis (IDA) using bilinear SDOF models representative of low rise buildings in both the Western United States (WUS) and the Central and Eastern United States (CEUS). Models were created that represented three, five, seven, and nine story buildings. Five sites from both the WUS and CEUS were used. Four different damage measures were used to assess the performance of the buildings. The IDA study was primarily interested in the response of the structures between the earthquake intensities that have a 10 percent probability of occurring in 50 years (10/50) and 2 percent probability of occurring in 50 years (2/50).

The results showed that all structures could be in danger of severe damage and possible collapse, depending on which damage measure and which earthquake was used. It is important to note, though, that the aforementioned is based on a damage-based collapse rule. The damage-based rule results were highly variable.

Using an intensity-based collapse rule, proved to be more consistent. Due to the nature of the bilinear models, only those structures with negative rp values ever collapsed using an intensity-based collapse rule. Most of the WUS models had positive rp values and many of the CEUS models had negative rp values. While many of the CEUS structures had negative rp values, which made them prone to collapse, most of the CEUS structures analyzed did not collapse at the 2/50 intensity. The reason was that the periods of the CEUS models were much longer than the approximate periods that were required to determine the strengths. Consequently, the strength capacity of most of the CEUS models was much greater than the seismic strength demands. While many of the CEUS models did have sudden collapses due to the large negative rp values, the collapses happened at intensities that were generally much higher than the 2/50 event.

In the IDA, it was also shown that vertical accelerations can significantly affect the ductility demands of a model with a negative rp post-yield stiffness ratio as the earthquake intensity approaches the collapse intensity. Since IDA is concerned with establishing collapse limit states, it seems that the most accurate collapse assessments would include vertical accelerations.
Master of Science

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Cott, Andrew. "An examination of analysis and optimization procedures within a PBSD framework." Manhattan, Kan. : Kansas State University, 2009. http://hdl.handle.net/2097/2318.

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Books on the topic "Incremental dynamic analysis"

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E, Barndorff-Nielsen O., Schürmann Michael, and Franz Uwe, eds. Quantum independent increment processes. Berlin: Springer, 2006.

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Teitt, Sarah. Asia Pacific and South Asia. Edited by Alex J. Bellamy and Tim Dunne. Oxford University Press, 2016. http://dx.doi.org/10.1093/oxfordhb/9780198753841.013.20.

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There is a tendency to view R2P diffusion in the Asia Pacific region as a function of ‘norm containment’, which explains endorsement of R2P as a result of the weakening, deconstruction, or dilution of R2P to render it more compatible with the region’s state-centred security norms and practices. This chapter demonstrates, however, that R2P has diffused in the Asia Pacific region through a dynamic process of negotiation and compromise between international R2P norm advocates and Asia Pacific actors, which has witnessed concession and accommodation on both sides. Through case study analysis of how the governments of Japan and India have engaged with R2P, the chapter argues that the Asia Pacific’s socialization to R2P is most aptly characterized as a balance of R2P norm containment and localization, witnessed in Asia Pacific actors shaping the contours of the R2P norm and accommodating its prescriptions through gradual, incremental normative and institutional change.
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Thelen, Kathleen, and James Conran. Institutional Change. Edited by Orfeo Fioretos, Tulia G. Falleti, and Adam Sheingate. Oxford University Press, 2016. http://dx.doi.org/10.1093/oxfordhb/9780199662814.013.3.

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This chapter traces developments in historical institutionalist approaches to institutional change. Originally, historical (like rational choice and sociological) institutionalism focused on institutions as “independent” variables, favoring a “comparative statics” mode of analysis. Institutions were relatively fixed and unproblematically enforced rules, while change came through periodic “critical junctures.” A dualistic institutional imagery treated institutions as exogenous for some analytical purposes, highly plastic for others. More recently, historical institutionalists have turned their attention to the dynamics of institutional evolution through political contestation and contextual change. This has allowed the identification of previously neglected processes of incremental and endogenous institutional change.
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Ford, Matthew. Weapon of Choice. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780190623869.001.0001.

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This book examines Western military technological innovation through the lens of developments in small arms during the twentieth century. These weapons have existed for centuries, appear to have matured only incrementally and might seem unlikely technologies for investigating the trajectory of military–technical change. Their relative simplicity, however, makes it easy to use them to map patterns of innovation within the military–industrial complex. Advanced technologies may have captured the military imagination, offering the possibility of clean and decisive outcomes, but it is the low technologies of the infantryman that can help us develop an appreciation for the dynamics of change. Tracing the path of innovation from battlefield to back office, and from industry to alliance partner, Ford develops insights into the way that small arms are socially constructed. He thereby exposes the mechanics of power across the military–industrial complex. This in turn reveals that shifting power relations between soldiers and scientists, bureaucrats and engineers, have allowed the private sector to exploit infantry status anxiety and shape soldier weapon preferences. Ford's analysis allows us to draw wider conclusions about how military innovation works and what social factors frame Western military purchasing policy, from small arms to more sophisticated and expensive weapons.
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Szewczyk, Janusz. Rola zaburzeń w kształtowaniu struktury i dynamiki naturalnych lasów bukowo-jodłowo-świerkowych w Karpatach Zachodnich. Publishing House of the University of Agriculture in Krakow, 2018. http://dx.doi.org/10.15576/978-83-66602-35-9.

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The aim of the study was to determine the influence of different disturbances (both natural and anthropogenic) on species composition and stand structure of old-growth mixed mountain forests in the Western Carpathians. These stands are usually dominated by beech, fir and spruce, mixed in different proportions. The tree main species represent different growth strategies, and they compete against each other. The longevity of trees makes the factors influencing the stand structure difficult to identify, even during longitudinal studies conducted on permanent research plots. That is why dendroecological techniques, based upon the annual variability of tree rings, are commonly used to analyze the disturbance histories of old-growth stands. Dendroecological methods make it possible to reconstruct the stand history over several centuries in the past by analyzing the frequency, intensity, duration and spatial scale of disturbances causing the death of trees. Combining the dendroecological techniques with the detailed measurements of stand structure, snag volume, CWD volume, and the analyses of regeneration species composition and structure allows us to identify the factors responsible for the changes in dynamics of mixed mountain forests. Various disturbance agents affect some species selectively, while some disturbances promote the establishment of tree seedlings of specific species by modifying environmental conditions. Describing the disturbance regime requires a broad scope of data on stand structure, on dead wood and tree regeneration, while various factors affecting all the stages of tree growth should be taken into consideration. On the basis of the already published data from permanent sample plots, combined with the available disturbance history analyses from the Western Carpathians, three research hypotheses were formulated. 1. The species composition of mixed mountain forests has been changing for at least several decades. These directional changes are the consequence of simultaneous conifer species decline and expansion of beech. 2. The observed changes in species composition of mixed mountain forests are the effect of indirect anthropogenic influences, significantly changing tree growth conditions also in the forests that are usually considered natural or near-natural. Cumulative impact of these indirect influences leads to the decrease of fir share in the tree layer (spruce decline has also been observed recently),and it limits the representation of this species among seedlings and saplings. The final effect is the decrease of fir and spruce share in the forest stands. 3. Small disturbances, killing single trees or small groups of trees, and infrequent disturbances of medium size and intensity dominate the disturbance regime in mixed mountain forests. The present structure of beech-fir-spruce forests is shaped both by complex disturbance regime and indirect anthropogenic influences. The data were gathered in permanent sample plots in strictly protected areas of Babia Góra, Gorce, and Tatra National Parks, situated in the Western Carpathians. All plots were located in the old-growth forest stands representing Carpathian beech forest community. The results of the measurements of trees, snags, coarse woody debris (CWD) and tree regeneration were used for detailed description of changes in the species composition and structure of tree stands. Tree ring widths derived from increment cores were used to reconstruct the historical changes in tree growth trends of all main tree species, as well as the stand disturbance history within the past two to three hundred years. The analyses revealed complex disturbance history in all of the three forest stands. Intermediate disturbances of variable intensity occurred, frequently separated by the periods of low tree mortality lasting from several decades up to over one hundred years. The intervals between the disturbances were significantly shorter than the expected length of forest developmental cycle, in commonly used theories describing the dynamics of old-growth stands. During intermediate disturbances up to several dozen percent of canopy trees were killed. There were no signs of stand-replacing disturbances, killing all or nearly all of canopy trees. The periods of intense tree mortality were followed by subsequent periods of increased sapling recruitment. Variability in disturbance intensity is one of the mechanisms promoting the coexistence of beech and conifer species in mixed forests. The recruitment of conifer saplings depended on the presence of larger gaps, resulting from intermediate disturbances, while beech was more successful in the periods of low mortality. However, in the last few decades, beech seems to benefit from the period of intense fir mortality. This change results from the influence of long-term anthropogenic disturbances, affecting natural mechanisms that maintain the coexistence of different tree species and change natural disturbance regimes. Indirect anthropogenic influence on tree growth was clearly visible in the gradual decrease of fir increments in the twentieth century, resulting from the high level of air pollution in Europe. Synchronous decreases of fir tree rings’ widths were observed in all three of the sample plots, but the final outcomes depended on the fir age. In most cases, the damage to the foliage limited the competitive abilities of fir, but it did not cause a widespread increase in tree mortality, except for the oldest firs in the BGNP (Babia Góra National Park) plot. BGNP is located in the proximity of industrial agglomeration of Upper Silesia, and it could be exposed to higher level of air pollution than the other two plots. High level of fir regeneration browsing due to the deer overabundance and insufficient number of predators is the second clear indication of the indirect anthropogenic influence on mixed mountain forests. Game impact on fir regeneration is the most pronounced in Babia Góra forests, where fir was almost completely eliminated from the saplings. Deer browsing seems to be the main factor responsible for limiting the number of fir saplings and young fir trees, while the representation of fir among seedlings is high. The experiments conducted in fenced plots located in the mixed forests in BGNP proved that fir and sycamore were the most preferred by deer species among seedlings and saplings. In GNP (Gorce National Park) and TNP (Tatra National Park), the changes in species composition of tree regeneration are similar, but single firs or even small groups of firs are present among saplings. It seems that all of the analysed mixed beech-fir-spruce forests undergo directional changes, causing a systematic decrease in fir representation, and the expansion of beech. This tendency results from the indirect anthropogenic impact, past and present. Fir regeneration decline, alongside with the high level of spruce trees’ mortality in recent years, may lead to a significant decrease in conifers representation in the near future, and to the expansion of beech forests at the cost of mixed ones.
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Kiszka, Krzysztof. Ruchy osuwiskowe w świetle badań dendrogeomorfologicznych na podstawie analizy osuwiska Sawickiego w Beskidzie Niskim = Landsilde movements based on dendrogeomorphological research based on a analysis of the Sawicki Landslide in the Beskid Niski mts. Instytut Geografii i Przestrzennego Zagospodarowania im. Stanisława Leszczyckiego, Polska Akademia Nauk, 2021. http://dx.doi.org/10.7163/9788361590835.

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Research concerns the problem of landslide movement, which is one of the most important geomorphological processes in the Carpathians. The aim of the studies is to determine the temporal and spatial complexity of landslide activity and to demonstrate the suitability of using different species of conifers in the dendrogeomorphological method. The Sawicki landslide located in Beskid Niski Mts., which is one of the largest landslides in the Polish Flysch Carpathians, was selected for dendrogeomorphological analysis. The dendrogeomorphological method and geomorphological mapping were used in the research. 1078 samples from conifers (fir, spruce, larch and pine) growing on the Sawicki landslide and its immediate surroundings were taken using an increment borer in 2013- 2018. The cores were taken from the upslope and downslope side of the tree stump. The width of annual tree rings were measured for each extracted core sample. The landslide activity was assessed on the basis of the eccentricity, the eccentricity index and its yearly variation. Geological and topographic maps, published data on landslides activity in the research area, precipitation data from the Research Station in Szymbark (Institute of Geography and Spatial Organization Polish Academy of Science) for 1968-2017 and from the meteorological station in Krynica (Institute of Meteorology and Water Management) for 1881-2010 were also used for dendrogeomorphological research of Sawicki landslide. The research shows that the Sawicki landslide is characterized by varied temporal and spatial complexity of landslide activity. The dynamics of displacements within the research sites and research sub-sites, including various fragments of landslides, and movements of colluvial packages is spatially mosaic and chaotic in time. Mass movements covering almost the entire surface of the landslide occurred in the years 1913-1914 and 1974-1975, while in the years 1888, 1906-1907, 1916, 1918, 1929, 1965, 1973, 1980, 1983-1985, 1997 landslide activity was recorded only in its particular parts. The largest variation in the dynamics of landslide movements is characteristic for the period 1970-1985. It was also found that in the initial stage of formation of the landslide tongue, the colluviums movement is disordered. During further downhill movement, the direction of displacement is arranged. Periods of Sawicki landslide activity refers to extremely humid years (62%) and wet years (48%) and they are consistent with the years of landslides activity in Szymbark, listed in the current literature of the subject. The most predisposed conifer species to dendrogeomorphological analysis were spruce, larch and fir. Despite its limitations, the dendrogeomorphological method is a useful tool in landslide activity research.
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Book chapters on the topic "Incremental dynamic analysis"

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Vamvatsikos, Dimitrios. "Incremental Dynamic Analysis." In Encyclopedia of Earthquake Engineering, 1–8. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-36197-5_136-1.

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Vamvatsikos, Dimitrios. "Incremental Dynamic Analysis." In Encyclopedia of Earthquake Engineering, 1165–71. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-642-35344-4_136.

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Read, Jesse, Albert Bifet, Bernhard Pfahringer, and Geoff Holmes. "Batch-Incremental versus Instance-Incremental Learning in Dynamic and Evolving Data." In Advances in Intelligent Data Analysis XI, 313–23. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-34156-4_29.

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Godefroid, Patrice, Shuvendu K. Lahiri, and Cindy Rubio-González. "Statically Validating Must Summaries for Incremental Compositional Dynamic Test Generation." In Static Analysis, 112–28. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23702-7_12.

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Sitapra, Nidhi J. "A Simplified Incremental Dynamic Analysis Procedure Using SAP2000." In Lecture Notes in Civil Engineering, 97–106. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-3371-4_9.

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Sitapra, Nidhi J., Kunal P. Shukla, Chirag M. Asodariya, and Amit J. Thoriya. "Incremental Dynamic Analysis of Geometrically Irregular RCC Buildings." In Lecture Notes in Civil Engineering, 247–53. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8496-8_32.

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Vargas, Yeudy F., Luis G. Pujades, Alex H. Barbat, and Jorge E. Hurtado. "Incremental Dynamic Analysis and Pushover Analysis of Buildings. A Probabilistic Comparison." In Computational Methods in Stochastic Dynamics, 293–308. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-5134-7_17.

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Waris, M. B., K. Al-Jabri, W. H. Bhuta, and I. El-Hussain. "Incremental dynamic analysis of a hospital building in Oman." In Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems, 128–31. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003348443-20.

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Waris, M. B., K. Al-Jabri, W. H. Bhuta, and I. El-Hussain. "Incremental dynamic analysis of a hospital building in Oman." In Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems, 43–44. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003348450-20.

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Dolsek, Matjaz. "Estimation of Seismic Response Parameters Through Extended Incremental Dynamic Analysis." In Computational Methods in Applied Sciences, 285–304. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-94-007-0053-6_13.

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Conference papers on the topic "Incremental dynamic analysis"

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Charney, Finley A. "Applications in Incremental Dynamic Analysis." In Structures Congress 2005. Reston, VA: American Society of Civil Engineers, 2005. http://dx.doi.org/10.1061/40753(171)183.

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Takaffoli, Mansoureh, Reihaneh Rabbany, and Osmar R. Zaïane. "Incremental local community identification in dynamic social networks." In ASONAM '13: Advances in Social Networks Analysis and Mining 2013. New York, NY, USA: ACM, 2013. http://dx.doi.org/10.1145/2492517.2492633.

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Zacharenaki, A., M. Fragiadakis, and M. Papadrakakis. "MEASURING BIAS IN INCREMENTAL DYNAMIC ANALYSIS USING BOOTSTRAP." In 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering. Athens: Institute of Structural Analysis and Antiseismic Research School of Civil Engineering National Technical University of Athens (NTUA) Greece, 2014. http://dx.doi.org/10.7712/120113.4553.c1689.

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Wang, Xuerui, Erik-Jan Van Kampen, Q. Ping Chu, and Peng Lu. "Stability Analysis for Incremental Nonlinear Dynamic Inversion Control." In 2018 AIAA Guidance, Navigation, and Control Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2018. http://dx.doi.org/10.2514/6.2018-1115.

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Dana, M. Mansouri, and B. Stojadinovic. "Incremental Dynamic Analysis of a Structure with a Gap." In Structures Congress 2005. Reston, VA: American Society of Civil Engineers, 2005. http://dx.doi.org/10.1061/40753(171)186.

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Zarayeneh, Neda, and Ananth Kalyanaraman. "A fast and efficient incremental approach toward dynamic community detection." In ASONAM '19: International Conference on Advances in Social Networks Analysis and Mining. New York, NY, USA: ACM, 2019. http://dx.doi.org/10.1145/3341161.3342877.

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Li, Guohui, Kun Guo, YuZhong Chen, Ling Wu, and Danhong Zhu. "A dynamic community detection algorithm based on Parallel Incremental Related Vertices." In 2017 IEEE 2nd International Conference on Big Data Analysis (ICBDA). IEEE, 2017. http://dx.doi.org/10.1109/icbda.2017.8078743.

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Akhin, Marat, and Vladimir Itsykson. "A regression test selection technique based on incremental dynamic analysis." In 2009 5th Central and Eastern European Software Engineering Conference in Russia (CEE-SECR 2009). IEEE, 2009. http://dx.doi.org/10.1109/cee-secr.2009.5501231.

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Ozawa, Seiichi, Kazuya Matsumoto, Shaoning Pang, and Nikola Kasabov. "An Incremental Principal Component Analysis based on dynamic accumulation ratio." In SICE 2008 - 47th Annual Conference of the Society of Instrument and Control Engineers of Japan. IEEE, 2008. http://dx.doi.org/10.1109/sice.2008.4655080.

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Li, Jingyong, Lan Huang, Tian Bai, Zhe Wang, and Hongsheng Chen. "CDBIA: A dynamic community detection method based on incremental analysis." In 2012 International Conference on Systems and Informatics (ICSAI). IEEE, 2012. http://dx.doi.org/10.1109/icsai.2012.6223494.

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