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Relevant bibliographies by topics / Frequency analysis procedures

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Academic literature on the topic 'Frequency analysis procedures'

Author: Grafiati

Published: 6 September 2023

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Journal articles on the topic "Frequency analysis procedures"

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Vieira, T. M. M., L. F. Oliveira, and J. Nadal. "Estimation procedures affect the center of pressure frequency analysis." Brazilian Journal of Medical and Biological Research 42, no. 7 (2009): 665–73. http://dx.doi.org/10.1590/s0100-879x2009000700012.

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Wazneh, H., F. Chebana, and T. B. M. J. Ouarda. "Optimal depth-based regional frequency analysis." Hydrology and Earth System Sciences 17, no. 6 (2013): 2281–96. http://dx.doi.org/10.5194/hess-17-2281-2013.

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Abstract. Classical methods of regional frequency analysis (RFA) of hydrological variables face two drawbacks: (1) the restriction to a particular region which can lead to a loss of some information and (2) the definition of a region that generates a border effect. To reduce the impact of these drawbacks on regional modeling performance, an iterative method was proposed recently, based on the statistical notion of the depth function and a weight function φ. This depth-based RFA (DBRFA) approach was shown to be superior to traditional approaches in terms of flexibility, generality and performan

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Wazneh, H., F. Chebana, and T. B. M. J. Ouarda. "Optimal depth-based regional frequency analysis." Hydrology and Earth System Sciences Discussions 10, no. 1 (2013): 519–55. http://dx.doi.org/10.5194/hessd-10-519-2013.

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Abstract. Classical methods of regional frequency analysis (RFA) of hydrological variables face two drawbacks: (1) the restriction to a particular region which can correspond to a loss of some information and (2) the definition of a region that generates a border effect. To reduce the impact of these drawbacks on regional modeling performance, an iterative method was proposed recently. The proposed method is based on the statistical notion of the depth function and a weight function φ. This depth-based RFA (DBRFA) approach was shown to be superior to traditional approaches in terms of flexibil

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Nguyen, Denis D., Ryan T. Judd, Terence E. Imbery, and Michael B. Gluth. "Frequency-Specific Analysis of Hearing Outcomes Associated with Ossiculoplasty Versus Stapedotomy." Annals of Otology, Rhinology & Laryngology 130, no. 9 (2021): 1010–15. http://dx.doi.org/10.1177/0003489421990164.

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Objective: Surgery on the ossicular chain may impact its underlying mechanical properties. This study aims to investigate comparative differences in frequency-specific hearing outcomes for ossiculoplasty versus stapedotomy. Methods: A retrospective chart review was conducted on subjects who underwent ossiculoplasty with partial ossicular replacement prosthesis (PORP) or laser stapedotomy with self-crimping nitinol/fluoroplastic piston, and achieved closure of postoperative pure tone average air-bone gap (PTA-ABG) ≤ 15 dB. 45 PORP and 38 stapedotomy cases were included, with mean length of foll

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Saf, Betül. "Application of Index Procedures to Flood Frequency Analysis in Turkey1." JAWRA Journal of the American Water Resources Association 44, no. 1 (2008): 37–47. http://dx.doi.org/10.1111/j.1752-1688.2007.00136.x.

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Loganathan, G. V., C. Y. Kuo, and T. C. McCormick. "Frequency Analysis of Low Flows." Hydrology Research 16, no. 2 (1985): 105–28. http://dx.doi.org/10.2166/nh.1985.0009.

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The transformations (i) SMEMAX (ii) Modified SMEMAX (iii) Power and Probability Distributions (iv) Weibull (α,β,γ) or Extreme value type III (v) Weibull (α,β,0) (vi) Log Pearson Type III (vii) Log Boughton are considered for the low flow analysis. Also, different parameter estimating procedures are considered. Both the Weibull and log Pearson can have positive lower bounds and thus their use in fitting low flow probabilities may not be physically justifiable. A new derivation generalizing the SMEMAX transformation is proposed. A new estimator for the log Boughton distribution is presented. It

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Guan, Wei, Zuo Jing Su, and Guo Qing Zhang. "Concise Robust Control for MIMO System Based on Frequency Domain Analysis." Applied Mechanics and Materials 278-280 (January 2013): 1555–60. http://dx.doi.org/10.4028/www.scientific.net/amm.278-280.1555.

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In this paper, a concise nonlinear robust control scheme based on the frequency domain is proposed. Compared with the arbitrary selection of weighting function in classical H∞ mixed sensitivity robust control design procedures, the CGSA methods gives a relatively more straightforward and concise design procedure for MIMO robust control problem. In the simulations, the CGSA is applied to an integrated rudder and fin control loop to indicate that the integrated rudder and fin CGSA control scheme is very feasible for future practical application.

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Basu, Bidroha, and V. V. Srinivas. "Evaluation of the Index-Flood Approach Related Regional Frequency Analysis Procedures." Journal of Hydrologic Engineering 21, no. 1 (2016): 04015052. http://dx.doi.org/10.1061/(asce)he.1943-5584.0001264.

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Everstine, G. C. "Prediction of Low Frequency Vibrational Frequencies of Submerged Structures." Journal of Vibration and Acoustics 113, no. 2 (1991): 187–91. http://dx.doi.org/10.1115/1.2930168.

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Practical numerical techniques are described for calculating the low frequency vibrational resonances of general submerged structures. Both finite element and boundary element approaches for calculating fully-coupled added mass matrices are presented and illustrated. The finite element approach is implemented using existing structural analysis capability in NASTRAN. The boundary element approach uses the NASHUA structural acoustics program in combination with NASTRAN to compute the added mass matrix. The two procedures are compared in application to a submerged cylindrical shell with flat end

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Moon, Andrew S., Andrew S. McGee, Harshadkumar A. Patel, et al. "A Safety and Cost Analysis of Outpatient Versus Inpatient Hindfoot Fusion Surgery." Foot & Ankle Specialist 12, no. 4 (2018): 336–44. http://dx.doi.org/10.1177/1938640018803699.

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Background. Hindfoot fusion procedures are increasingly being performed in the outpatient setting. However, the cost savings of these procedures compared with the risks and benefits has not been clearly investigated. The objective of this study was to compare patient characteristics, costs, and short-term complications between inpatient and outpatient procedures. Methods. This was a retrospective review of all patients who underwent inpatient and outpatient hindfoot fusion procedures by a single surgeon, at 1 academic institution, from 2013 to 2017. Data collected included demographics, operat

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Dissertations / Theses on the topic "Frequency analysis procedures"

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Soloviev, Andrey. "Investigation into performance enhancement of integrated global positioning/inertial navigation systems by frequency domain implementation of inertial computational procedures." Ohio : Ohio University, 2002. http://www.ohiolink.edu/etd/view.cgi?ohiou1178652218.

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Chvatík, Štěpán. "Asynchronní motor s vnějším rotorem." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377075.

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Kiran, K. G. "New Approaches to At-site and Regional Frequency Analysis of Hydrologic Extremes in Peaks Over Threshold Framework." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5752.

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Frequency analysis procedures are widely used to quantify the risk associated with floods that have devastating consequences worldwide. Conventionally, the frequency analysis is performed based on the annual maximum series (AMS) of peak flows extracted from the available streamflow records. Peaks-over-threshold or Partial duration series (PDS) framework is deemed more efficient than AMS in depicting information on extremes. Despite its advantages, the use of PDS is less prevalent than AMS. It is due to the lack of a universally established systematic approach to select an appropriate threshold

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Books on the topic "Frequency analysis procedures"

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Kanda, Motohisa. A radio-frequency power delivery system: Procedures for error analysis and self-calibration. U.S. Dept. of Commerce, National Bureau of Standards, 1985.

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Kanda, Motohisa. A radio-frequency power delivery system: Procedures for error analysis and self-calibration. U.S. Dept. of Commerce, National Bureau of Standards, 1985.

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Kanda, Motohisa. A radio-frequency power delivery system: Procedures for error analysis and self-calibration. U.S. Dept. of Commerce, National Bureau of Standards, 1985.

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Kanda, Motohisa. A radio-frequency power delivery system: Procedures for error analysis and self-calibration. U.S. Dept. of Commerce, National Bureau of Standards, 1985.

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Kanda, Motohisa. A radio-frequency power delivery system: Procedures for error analysis and self-calibration. U.S. Dept. of Commerce, National Bureau of Standards, 1985.

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Kanda, Motohisa. A radio-frequency power delivery system: Procedures for error analysis and self-calibration. U.S. Dept. of Commerce, National Bureau of Standards, 1985.

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7

Bohn, Michael P. Procedures for the external event core damage frequency analyses for NUREG-1150. Division of Systems Research, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1990.

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Kuhn, Gerhard. Use of frequency analysis and the extended streamflow prediction procedure to estimate evacuation dates for the joint-use pool of Pueblo Reservoir, Colorado. U.S. Dept. of the Interior, U.S. Geological Survey, 1994.

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Congendo, Marco, and Fernando H. Lopes da Silva. Event-Related Potentials. Edited by Donald L. Schomer and Fernando H. Lopes da Silva. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780190228484.003.0039.

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Event-related potentials (ERPs) can be elicited by a variety of stimuli and events in diverse conditions. This chapter covers the methodology of analyzing and quantifying ERPs in general. Basic models (additive, phase modulation and resetting, potential asymmetry) that account for the generation of ERPs are discussed. The principles and requirements of ensemble time averaging are presented, along with several univariate and multivariate methods that have been proposed to improve the averaging procedure: wavelet decomposition and denoising, spatial, temporal and spatio-temporal filtering. We em

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Velkushanova, Konstantina, Linda Strande, Mariska Ronteltap, Thammarat Koottatep, Damir Brdjanovic, and Chris Buckley, eds. Methods for Faecal Sludge Analysis. IWA Publishing, 2021. http://dx.doi.org/10.2166/9781780409122.

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Faecal sludge management is recognized globally as an essential component of city-wide inclusive sanitation. However, a major gap in developing appropriate and adequate management and monitoring for faecal sludge is the ability to understand and predict the characteristics and volumes of accumulated faecal sludge, and correlations to source populations. Since standard methods for sampling and analysing faecal sludge do not currently exist, results are not comparable, the actual variability is not yet fully understood, and the transfer of knowledge and data between different regions and institu

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Book chapters on the topic "Frequency analysis procedures"

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Krajewski, W., A. Lepschy, S. Miani, and U. Viaro. "Robustness Analysis of Frequency-Domain PI Controller Design Procedures." In AMST’02 Advanced Manufacturing Systems and Technology. Springer Vienna, 2002. http://dx.doi.org/10.1007/978-3-7091-2555-7_67.

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Banerjee, Amal. "Radio Frequency Power Amplifier (Narrow Band, Distributed) Design Fundamentals: Design Procedures and Analysis." In Practical RF Amplifier Design and Performance Optimization with SPICE and Load- and Source-pull Techniques. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-62512-2_2.

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Henriques, Carla, and Clara Viseu. "Are ERDF Devoted to Boosting ICT in SMEs Inefficient? Insights Through Different DEA Models." In Springer Proceedings in Political Science and International Relations. Springer Nature Switzerland, 2022. http://dx.doi.org/10.1007/978-3-031-18161-0_2.

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AbstractWe evaluated the execution of operational programs (OPs) targeted at increasing the adoption of information and communication technologies (ICT) in small and midsize enterprises (SMEs). As a result, we employed two different data envelopment analysis (DEA) models to evaluate 51 OPs from 16 countries, contemplating data provided to the European Union (EU). All in all, we observed that almost 20% of the OPs (10) achieved efficient procedural outcomes, with the slack-based method (SBM) and with the weighted Russel Directional Distance model (WRDDM), respectively. Two of the OPs most frequently viewed as benchmarks were in Spain (the country that uses “vouchers” simplifying processes), remaining robustly efficient for data perturbations of 5% and 10%. The ‘number of operations supported’ is the metric that necessitates more consideration according to both models. Overall, these findings show the robustness of results with both methods, highlighting a higher discriminatory power of the second method, particularly for inefficient OPs. Finally, the unsuccessful findings attained might be linked to bureaucratic procedures and SMEs’ incapacity to deal with the complicated processes involved in obtaining and implementing European Regional Development Fund (ERDF) proposals. As a result, it is critical to provide the extra help that reduces managerial requirements while also meeting the demands of SMEs.

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Hron, Igor. "(Un)Clean Hands in International Investment Arbitration: Some Cleaning Required?" In Cofola International 2021. Masaryk University Press, 2021. http://dx.doi.org/10.5817/cz.muni.p210-8639-2021-8.

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The aim of the paper is to examine the so-called doctrine of clean hands frequently utilized as a defence in Investor-State arbitration procedures under international investment agreements in cases, where the law of the host State has been violated. The paper thus provides a historical and comparative context of the doctrine at hand stemming from the common law tradition. Furthermore, it scrutinizes the status of the doctrine under contemporary international law by analysing the scholar views, as well as the jurisprudence of international bodies.

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Chatterton, Steven, Paolo Pennacchi, Andrea Vania, and Pietro Borghesani. "A Novel Procedure for the Selection of the Frequency Band in the Envelope Analysis for Rolling Element Bearing Diagnostics." In Proceedings of the 9th IFToMM International Conference on Rotor Dynamics. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-06590-8_33.

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Li, Q., D. Wu, and W. Gao. "Insights into the Size Effect of the Dynamic Characteristics of the Perovskite Solar Cell." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-3330-3_37.

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AbstractDriven by government policy and incentives, solar power production has soared in the past decade and become a mainstay during the worldwide clean-power transition process. Among the various next-generation photovoltaic technologies, perovskite solar cells (PSCs) are the most important emerging area of research due to their outstanding power conversion efficiency and affordable scale-up operation. We adopted the nonlocal strain gradient theory and the first-order shear deformation plate theory to investigate the size-dependent free vibration behavior of PSCs. The size-dependency in the nanostructure of the PSCs was captured by coupling the nonlocal and strain gradient parameters. In accordance with the Hamilton principle, the governing equations set was derived. Subsequently, the Galerkin procedure was applied to address the dynamic characteristics analysis of PSCs with simply supported and clamped edges. Compared with the size-insensitive traditional continuum plate model, the current multiscale framework revealed a size effect on the free vibration of the PSC. Moreover, some parametric experiments were conducted to explore the impacts of scale length parameter, nonlocal parameter, and boundary conditions on the natural frequency of the PSC.

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Shah, Milap, B. M. Zeeshan Hameed, Amelia Pietropaolo, and Bhaskar K. Somani. "Use of Drugs to Reduce the Morbidity of Ureteral Stents." In Urinary Stents. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-04484-7_7.

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AbstractDouble ureteral stents are amongst the commonest procedures performed in urology. However, there are complications such as infection, and encrustation associated with its use, together with uncomfortable lower urinary tract symptoms (LUTS). The latter are known as stent related symptoms (SRS) and are commonly reported in the scientific literature. SRS mentioned in literature are urgency, frequency, dysuria, haematuria, pain in the suprapubic and flank region. These can result in decreased sexual activity, reduced work performance, as well as decreased quality of life (QoL) in more than two-third of the patients. Drugs still hold the key in reducing the morbidity related to the ureteral stents.In terms of monotherapy, Alpha blockers as well as Antimuscarinics are effective in reducing SRS. Role of Mirabegron in the field is currently gaining importance. However, combination therapy reaches better outcomes than monotherapy alone while in cases with sexual dysfunction along with stent related symptoms, PDE5-I are better than other options. The role of complementary therapy for SRS with natural remedies is promising but needs to be assessed further. More randomized studies and laboratory trials are necessary to analyse possible alternative treatments for SRS that can heavily affects patients’ quality of life.

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Harbaugh, John W., and Johannes Wendebourg. "Risk Analysis Of Petroleum Prospects." In Computers in Geology - 25 Years of Progress. Oxford University Press, 1994. http://dx.doi.org/10.1093/oso/9780195085938.003.0012.

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Risk analysis of an oil or gas prospect requires a probability distribution with two components, a dry-hole probability plus a distribution of oil or gas volumes if there is a discovery. While these components should be estimated objectively, risk analysis as currently practiced is mostly guesswork. Geologists assign outcome probabilities without appropriate procedures or data for objective estimation. Valid estimates require frequency data on regional exploratory drilling-success ratios, frequency distributions of oil and gas field volumes, and systematic tabulations of geological variables on a prospect-by-prospect basis. Discriminant functions can be used to analyze relationships between geological variables and hydrocarbons, leading to outcome probabilities conditional on discriminant scores. These probabilities can be incorporated in risk-analysis tables to yield risk-weighted financial forecasts. Computers are required for all procedures. Prior to drilling a petroleum prospect, the likelihood of good outcomes must be weighed against the bad to obtain a risked financial estimate that combines all possibilities. Some oil operators simply contrast the value of discovery that is expected, versus the cost of a dry hole. A cashflow projection yields an estimate of the revenue that will be received if a discovery is made. This assumes an initial producing rate and an ultimate cumulative production for the operator's net revenue interest, and an oil price. When the stream of revenue is discounted and costs for the lease, the completed well, and operating expenses and taxes are subtracted, the net present value is obtained. If the hole is dry, its cost is readily estimated. Only two monetary estimates coupled with an intuitive guess about the likelihood of a producer versus a dry hole form the basis for a decision. A great deal of oil has been found by both independent operators and major oil companies using such simple decision systems. Oil companies generally use more advanced methods at present. Many require their geologists to supply probability estimates for a spectrum of outcomes for each individual prospect, ranging from the probability of a dry hole through the probability of a small discovery, a medium-sized discovery, and various magnitudes of large discoveries.

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Almudena, González, Santapau Manuel, and González Julián Jesús. "EEG Analysis during Music Perception." In Electroencephalography [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.94574.

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This review presents the most interesting results of electroencephalographic studies on musical perception performed with different analysis techniques. In first place, concepts on intra-musical characteristics such as tonality, rhythm, dissonance or musical syntax, which have been object of further investigation, are introduced. Most of the studies found use listening musical extracts, sequences of notes or chords as an experimental situation, with the participants in a resting situation. There are few works with participants performing or imagining musical performance. The reviewed works have been divided into two groups: a) those that analyze the EEGs recorded in different cortical areas separately using frequency domain techniques: spectral power, phase or time domain EEG procedures such as potentials event related (ERP); b) those that investigate the interdependence between different EEG channels to evaluate the functional connectivity between different cortical areas through different statistical or synchronization indices. Most of the aspects studied in music-brain interaction are those related to musical emotions, syntax of different musical styles, musical expectation, differences between pleasant and unpleasant music and effects of musical familiarity and musical experience. Most of the works try to know the topographic maps of the brain centers, pathways and functions involved in these aspects.

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Gubicza, Jenő. "Practical Applications of X-Ray Line Profile Analysis." In Materials Science and Engineering. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1798-6.ch043.

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In the previous chapters, the theory and the main methods of diffraction peak profile analysis were presented. Additionally, the specialties in the measurement and the evaluation of line profiles in the cases of thin films and single crystals were discussed. In this chapter, some practical considerations are given in order to facilitate the evaluation of peak profiles and the interpretation of the results obtained by this method. For instance, the procedures for instrumental correction are overviewed. Additionally, how the prevailing dislocation slip systems and twin boundary types in hexagonal polycrystals can be determined from line profiles is shown. Besides the dislocation density, the vacancy concentration can also be obtained by the combination of electrical resistivity, calorimetric, and line profile measurements. The crystallite size and the twin boundary frequency determined by X-ray peak profile analysis are compared with the values obtained by the direct method of transmission electron microscopy. Furthermore, the limits of line profile analysis in the determination of crystallite size and defect densities are given. Finally, short overviews on the results obtained by peak profile analysis for metals, ceramics, and polymers are presented.

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Conference papers on the topic "Frequency analysis procedures"

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Ilstad, Trygve, Tore So̸reide, and Finn Gunnar Nielsen. "Frequency Proximity for Multi-Mode VIV Interaction." In 25th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/omae2006-92252.

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Uneven seabed and seabed intervention may introduce free-spans in pipelines where interaction between VIV responses of several modes occurs, including longer single spans and moderate length multiple spans. A series of model tests were performed within the Ormen Lange project to study the phenomenon of multi-mode behaviour. While for a beam controlled single span the modes are well separated, the multi-span modes are closer in frequency, and a clear reduction of response amplitude is observed. For single mode response the maximum cross flow amplitude may be 1.3 times the pipeline diameter, whe

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Pandey, Ajit K., Isaac Chang, Matthew R. Myers, and Rupak K. Banerjee. "Finite Element Analysis of Radio-Frequency Ablation in a Reconstructed Realistic Hepatic Geometry." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32046.

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Radio-frequency (RF) ablation is a minimally invasive procedure that has the potential for widespread use in hepatic cancer therapy. In the procedure, RF current is applied to the tissue, resulting in the conversion of electrical to heat energy and thus, a rise in temperature, with the goal of eventual tumor necrosis. Potential complications from the procedure include insufficient heating of large tumors, resulting in tumor recursion, as well as excessive thermal damage to healthy tissue. Mathematical models are valuable in predicting the temperature rise within the organ during RF ablation, t

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Christopherson, J., and G. Nakhaie Jazar. "Frequency Response of a Base Excited System With Hydraulic Mount." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-42440.

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This paper investigates the frequency response analysis of a hydraulic suspension system undergoing base excitation. The nonlinearity of the hydraulic suspension due to the decoupler action is taken into account and the effects of utilizing an inertia track in the design of the hydraulic mount are also considered. The analysis focuses on the development of the equations of motion for a three degree of freedom system, and the development of an appropriate model based on the equations of motion for the system, which is essential for utilization is an optimization procedure. The analysis was cond

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Askari, Behrooz, and George Yadigaroglu. "An Advanced Frequency-Domain Code for BWR Stability Analysis and Design." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-65245.

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Density Wave Oscillations in BWRs are coupled with the reactor kinetics. A new analytical, frequency-domain tool that uses the best available models and methods for modeling BWRs and analyzing their stability is described. The steady state of the core is obtained first in 3D with two-group diffusion equations and spatial expansion of the neutron fluxes in Legendre polynomials. The time-dependent neutronics equations are written in terms of flux harmonics (nodal-modal equations) for the study of “out-of-phase” instabilities. Considering separately all fuel assemblies divided into a number of ax

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Webster, Mason J., Derek M. Herbert, Peter T. Pascoal, and Justin C. Smith. "Analysis of Electrode Degradation Through the Use of Synthetic Tissue Analog." In ASME 2009 4th Frontiers in Biomedical Devices Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/biomed2009-83004.

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RF Ablation Efficacy Testing: Modern surgical techniques utilize radio frequency ablation tools in minimally invasive procedures around the world today. The safety and efficacy of these tools must be verified before being used in human trials. This verification is typically performed on bovine, ovine, or porcine tissues which simulate clinical use.

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Lee, Sang-Mo, Ohgeon Kwon, and Vitor Lopes Garcia. "Optimization of Reactor’s Start-Up and Shutdown Procedures by Transient Thermo-Mechanical Finite Element Analysis." In ASME 2018 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/pvp2018-84123.

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Efficient refinery start-up and shutdown durations are vital in establishing prolonged productivity in refineries operating hydrotreating reactors. The benefits of efficient start up and shutdown cycles are extensive, and include considerable operational and cost reduction. Reduced start-up and shutdown cycles, however, require increased heating and cooling rates, which cause higher temperature gradients throughout the reactor vessel, consequently leading to higher thermal stresses, which may affect damage mechanisms and limit reactor’s life. The equipment’s OEM has defined guidelines for the

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Chakrabarti, Partha, and Atul Rikhy. "Comparison of Seismic Analysis of Jacket Structures Using Response Spectrum and Time Domain Procedures." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-10112.

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In seismically active areas of the world an offshore jacket structure has to be designed for seismic loads. Since the structure must meet both strength and ductility requirements, a two stage design for Strength Level Earthquake (SLE) and Ductility Level Earthquake (DLE) is generally used. Normal procedure for designing such a structure for SLE condition is to use Response Spectrum method of analysis (RSA). The main advantage of RSA is that it is computationally very efficient. Time Domain Analysis (TDA) is used mostly to analyze DLE condition. A response spectrum depicts the maximum response

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Porter, Mike, and Mike Fischbach. "Investigation of Vane-Pass Frequency Vibration in a Centrifugal Pump." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25824.

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Normally, vibration at the vane-pass frequency of a centrifugal pump impeller is not expected to be problematic. Through the application of Murphy’s Law, however, problems can arise. This paper examines such a problem and discusses the process used to develop remedial measures. One of the problems in the analysis involves the separation of pump and piping causes and effects. Lessons learned during the investigation are used to develop recommendations for possible improvements in the analysis procedures for future investigations of similar problems.

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Falkenberg, Erik, Vidar A˚hjem, Kjell Larsen, Halvor Lie, and Karl Erik Kaasen. "Global Performance of Synthetic Rope Mooring Systems: Frequency Domain Analysis." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-49723.

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For deep and ultra-deepwater applications, synthetic fibre ropes are considered an enabling technology due to their higher strength-to-weight ratio as compared to steel wire ropes and chains and due to their superior station-keeping performance. The advantages of synthetic fibre rope mooring systems include: • A higher floater payload and reduction in structural costs due to lower vertical load from mooring lines. • A reduction in vessel offsets and associated riser loads due to taut mooring system. • A potential reduction in installation costs due to lighter installation and handling equipmen

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Askari, Hassan, and Ebrahim Esmailzadeh. "Free Vibration of Micro Cantilever Beam With Electromagnetic Actuators." In ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/esda2014-20569.

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Free vibration of cantilever beam with an electromagnetic actuator is studied. The governing equation of motion of the system is developed and the electromagnetic actuation part is added to the system. The system is modeled by 1DOF vibration mode. Three different analytical solution methods, namely, Krylov and Bogoliubov, Energy Balance and Modified Energy Balance are utilized to obtain the equations of motion and the frequency response of the system. Expression for the fundamental frequency is obtained using different types of analytical procedures. Frequency responses of the system are obtai

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Reports on the topic "Frequency analysis procedures"

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Melvin, Kenneth B., Joseph Neggers, and Dennis Runcie. Analysis of Most Frequency Violated Procedures Accidents,. Defense Technical Information Center, 1988. http://dx.doi.org/10.21236/ada373183.

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Rahman, Shahedur, Rodrigo Salgado, Monica Prezzi, and Peter J. Becker. Improvement of Stiffness and Strength of Backfill Soils Through Optimization of Compaction Procedures and Specifications. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317134.

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Vibration compaction is the most effective way of compacting coarse-grained materials. The effects of vibration frequency and amplitude on the compaction density of different backfill materials commonly used by INDOT (No. 4 natural sand, No. 24 stone sand, and No. 5, No. 8, No. 43 aggregates) were studied in this research. The test materials were characterized based on the particle sizes and morphology parameters using digital image analysis technique. Small-scale laboratory compaction tests were carried out with variable frequency and amplitude of vibrations using vibratory hammer and vibrato

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Lopez-Barrios, Michel, and Paul Peters. Definitions and Methods for Analysis of Multiple Cause of Death: A Scoping Review. Spatial Determinants of Health Lab, 2023. http://dx.doi.org/10.22215/rrep/2023.sdhl.106.

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Objective: This review aims to identify and categorise demographic methods used in modelling multiple causes of death. The assumption that each death is caused by exactly one disease is debatable, as other possible diseases or causes may be associated with the main cause. Hence, the multiple causes of death approach is essential for understanding mortality. Therefore, through this study, we will carry out a Scoping Review of the existing literature on the topic of MCOD. Inclusion criteria: This review considers literature pertaining to methods for the analysis and utilization of multiple cause

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Singh, Anjali. Estimating the Chiasma Frequency in Diplotene-Diakinesis Stage. ConductScience, 2020. http://dx.doi.org/10.55157/cs20200925.

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Chiasma is the point of crossing over or site where the exchange of genetic material takes place between two homologous, non-sister chromatids. The crossover occurs in the pachytene stage, however, it is observed in the diplotene stage of meiosis-I[2]. The cross-over between the two homologs also creates a new combination of parental genes, forming recombinants. The recombination of the genes causes variation in the population and exert a profound effect on genomic diversity and evolution. Meiotic recombination and variation in the population have been a concern for scientists to understand th

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Bonthron, Leslie, Corey Beck, Alana Lund, et al. Empowering the Indiana Bridge Inventory Database Toward Rapid Seismic Vulnerability Assessment. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317282.

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With the recent identification of the Wabash Valley Seismic Zone in addition to the New Madrid Seismic Zone, Indiana’s Department of Transportation (INDOT) has become concerned with ensuring the adequate seismic performance of their bridge network. While INDOT made an effort to reduce the seismic vulnerability of newly-constructed bridges, many less recent bridges still have the potential for vulnerability. Analyzing these bridges’ seismic vulnerability is a vital task. However, developing a detailed dynamic model for every bridge in the state using information from structural drawings is rath

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Kwak, Sang Gyu, Yoo Jin Choo, Soyoung Kwak, and Min Cheol Chang. Efficacy of Transforaminal, Interlaminar, and Caudal Epidural Injections in Lumbosacral Disc Herniation: A Systematic Review and Network Meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.8.0091.

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Review question / Objective: Epidural injection (EI) has been used to manage lower back or radicular leg pain from herniation of lumbar disc (HLD). Three types of EI techniques, including transforaminal (TFEI) interlaminar (ILEI), and caudal epidural injections (CEI), are being applied. We aimed to evaluate the comparative effect of TFESI, ILEI, and CEI for reducing pain or improving function in patients with HLD. Condition being studied: For controlling inflammation by the HLD, various oral medications and procedures are used. Among these therapeutic methods, EI of the drugs is frequently use

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de Carvalho, Clístenes Crístian, Ioannis Kapsokalyvas, and Kariem El-Boghdadly. Second-generation supraglottic airways vs endotracheal tubes in adults undergoing abdominopelvic surgeries: a protocol for a systematic review with pairwise meta-analyses of randomised clinical trials. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.9.0041.

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Review question / Objective: We aim to compare second-generation supraglottic airways with endotracheal tubes for perioperative safety and quality of postoperative recovery as well as for ventilation performance and risk of pulmonary aspiration. Eligibility criteria: Inclusion criteria will be as follows: randomized clinical trials; human patients aged ≥ 16 years undergoing abdominopelvic procedures under general anaesthesia from any population (e.g., general population, pregnant women, obese patients); data available on any outcome related to insertion performance (e.g., failed first attempt,

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Ahmad, Noshin S., Raul Pineda-Mendez, Fahad Alqahtani, Mario Romero, Jose Thomaz, and Andrew P. Tarko. Effective Design and Operation of Pedestrian Crossings. Purdue University, 2022. http://dx.doi.org/10.5703/1288284317438.

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Pedestrians are vulnerable road users since they are prone to more severe injuries in any vehicular collision. While innovative solutions promise improved pedestrian safety, a careful analysis of local conditions is required before selecting proper corrective measures. This research study had two focuses: (1) methodology to identify roads and areas in Indiana where the frequency and severity of pedestrian collisions are heightened above the acceptable level, and (2) selecting effective countermeasures to mitigate or eliminate safety-critical conditions. Two general methods of identifying speci

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RRS/Schirmer. PR-339-093708-R01 Survey for Control Room Operators and Operations Specialists Usability Study. Pipeline Research Council International, Inc. (PRCI), 2010. http://dx.doi.org/10.55274/r0010714.

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The purpose of the Human Factors Analysis of Pipeline Monitoring and Control Operations project (Battelle, 2008) was to develop procedures that could be used by liquid pipeline operators to assess and manage the human factors risks in their control rooms that may adversely affect pipeline monitoring and control operations. Two paper surveys were developed: 1. A survey for Control Room Operators (CROs) that consists of 138 questions designed to understand the human factors that affect the CRO�s ability to safely and efficiently monitor and control pipeline operations in the control room. The su

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Lee, Wall, and Burch. L52333 NDE and Inspection Techniques Applied to Composite Wrap Repairs. Pipeline Research Council International, Inc. (PRCI), 2012. http://dx.doi.org/10.55274/r0010468.

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The objective includes: Assess commercially available inspection methods to validate integrity of composite repair systems. Identify applicability to inspect composite overwrap and parent metal for both onshore and sub-sea pipelines (where information is available). Identify sources of data to include other users of composite materials(aerospace/aircraft, naval/ship repairs). Identify procedures and technologies to assess inspection effectiveness and provide a gap analysis. Interface with other PRCI projects on long-term testing of composite repairs and other joint industry projects on composi

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