Academic literature on the topic 'Conjugated frequency analysis'

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Journal articles on the topic "Conjugated frequency analysis"

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Liu, C. C., Terry B. J. Kuo, and Cheryl C. H. Yang. "Effects of estrogen on gender-related autonomic differences in humans." American Journal of Physiology-Heart and Circulatory Physiology 285, no. 5 (2003): H2188—H2193. http://dx.doi.org/10.1152/ajpheart.00256.2003.

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Our previous studies demonstrated that premenopausal women have dominant vagal and subordinate sympathetic activity compared with age-matched men. This study was designed to investigate the role of estrogen in gender-related autonomic differences. We evaluated the heart rate variability of four healthy groups: agedmatched postmenopausal women without hormone replacement therapy (PM), postmenopausal women on conjugated estrogen replacement therapy (PME), men, and non-age-matched premenopausal women (PreM). Frequency-domain analysis of short-term and stationary R-R intervals was performed to eva
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Ueda, Yuichiro, Toshihiko Sato, Ryosuke Nakamura, et al. "Evaluation of regenerated tracheal cilia function on a collagen-conjugated scaffold in a canine model." Interactive CardioVascular and Thoracic Surgery 31, no. 5 (2020): 644–49. http://dx.doi.org/10.1093/icvts/ivaa167.

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Abstract OBJECTIVES It is unclear whether the movement and function of the regenerated cilia on collagen-conjugated artificial trachea are the same as those of normal cilia. This study assessed the ciliary beat frequency (CBF) and ciliary transport functions (CTFs) of regenerated cilia in a canine model. METHODS A tracheal defect introduced into the anterior portion of the cervical trachea of an adult beagle dog was covered with a collagen-conjugated prosthesis. Two months later, the trachea was harvested along the long axis, both from normal and regenerated regions. The cilia were stained wit
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Araten, David, Katie J. Sanders, Dan Anscher, Leah Zamechek, Stephen P. Hunger, and Sherif Ibrahim. "A High Frequency of Blasts with the PNH Phenotype in Patients with ALL." Blood 114, no. 22 (2009): 1575. http://dx.doi.org/10.1182/blood.v114.22.1575.1575.

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Abstract Abstract 1575 Poster Board I-601 It has been proposed that if more than 2 mutations are required for leukemia to arise, then an elevation in the mutation rate would be necessary for these mutations to coincide in the same cell, based on the rarity of spontaneous mutations (Loeb 1991). Hypermutability could occur transiently, for example, due to mutagens, or permanently, due to inactivation of repair pathways. Genome-wide analysis has indicated that in acute lymphoblastic leukemia (ALL), more than 2 somatic mutations are often found (Mullighan et al 2007), suggesting that hypermutabili
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Beck, Richard A., Scott Kambiss, and James W. Bass. "The Retreat of Hemophilus Influenzae Type B Invasive Disease: Analysis of an Immunization Program and Implications for OTO-HNS." Otolaryngology–Head and Neck Surgery 109, no. 4 (1993): 712–21. http://dx.doi.org/10.1177/019459989310900413.

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Hemophilus influenzae type b (Hib) is the most common cause of bacterial meningitis among children under 5 years old. Hib is also responsible for other invasive diseases including epiglottitis, cellulitis, sepsis, pneumonia, and osteomyelitis. A child's cumulative risk of systemic Hib disease during the first 5 years of life is approximately 1 in 200. A polysaccharide Hib vaccine was first marketed in 1985, and newer, more effective conjugated vaccines have been licensed since 1987. Immunization schedules have Included Increasingly younger children. No studies have been published that analyze
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Ding, Jiang, Aiping Deng, Liwei Liu, and Mengen Lu. "Dynamic Analysis of Line Gear Pair Based on Numerical Manifold Method." Strojniški vestnik – Journal of Mechanical Engineering 67, no. 6 (2021): 275–86. http://dx.doi.org/10.5545/sv-jme.2021.7118.

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As a kind of tiny gear based on space curve meshing theory, the line gear is very suitable for miniaturized machines due to its compact size and low weight. However, the line gear usually suffers from serious vibration problems since its line teeth are designed as twisted three-dimensional cantilevers to provide conjugated meshing curves. A dynamic model of the line gear pair is established in this paper using the numerical manifold method (NMM) to alleviate its vibration conditions, which can simultaneously provide mathematical and physical covers. The displacement function is first derived f
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Serizawa, Takahiro, Takako Terui, Tatsuya Kagemoto, et al. "Real-time measurement of the length of a single sarcomere in rat ventricular myocytes: a novel analysis with quantum dots." American Journal of Physiology-Cell Physiology 301, no. 5 (2011): C1116—C1127. http://dx.doi.org/10.1152/ajpcell.00161.2011.

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As the dynamic properties of cardiac sarcomeres are markedly changed in response to a length change of even ∼0.1 μm, it is imperative to quantitatively measure sarcomere length (SL). Here we show a novel system using quantum dots (QDs) that enables a real-time measurement of the length of a single sarcomere in cardiomyocytes. First, QDs were conjugated with anti-α-actinin antibody and applied to the sarcomeric Z disks in isolated skinned cardiomyocytes of the rat. At partial activation, spontaneous sarcomeric oscillations (SPOC) occurred, and QDs provided a quantitative measurement of the leng
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Zhao, Sicheng, Mathias Dietzel, and Steffen Hardt. "Faraday instability of a liquid layer on a lubrication film." Journal of Fluid Mechanics 879 (September 27, 2019): 422–47. http://dx.doi.org/10.1017/jfm.2019.684.

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The Faraday instability in a system of two conjugated immiscible liquid layers with disparate thicknesses is investigated. The top layer is relatively thick and undergoes short-wavelength instabilities, while the bottom layer is thin and undergoes long-wavelength instabilities. The two layers are coupled by the kinematic and dynamic relations at the interface. Through linear stability analysis, a lubrication effect, which significantly reduces the destabilization threshold, is identified. Especially when the vibration frequency is low, the lubrication effect is seen to influence the transition
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Zhao, Shoujun, Keqin Chen, Xiaosha Zhang, et al. "A High-Order Load Model and the Control Algorithm for an Aerospace Electro-Hydraulic Actuator." Actuators 10, no. 3 (2021): 53. http://dx.doi.org/10.3390/act10030053.

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It is difficult to describe precisely, and thus control satisfactorily, the dynamics of an electro-hydraulic actuator to drive a high thrust liquid launcher engine, whose structural resonant frequency is usually low due to its heavy inertia and complicated mass distribution, let alone one to drive a heavy kerolox engine with high-order dynamics. By transforming classic control block diagrams, a baseline two-mass-two-spring load model and a normalized actuator-engine system model were developed for understanding the basic physics and methodology, where a fourth-order transfer function is used t
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Liu, Jie, Tracy J. Ruckwardt, Man Chen, Teresa R. Johnson, and Barney S. Graham. "Characterization of Respiratory Syncytial Virus M- and M2-Specific CD4 T Cells in a Murine Model." Journal of Virology 83, no. 10 (2009): 4934–41. http://dx.doi.org/10.1128/jvi.02140-08.

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ABSTRACT CD4 T cells have been shown to play an important role in the immunity and immunopathogenesis of respiratory syncytial virus (RSV) infection. We identified two novel CD4 T-cell epitopes in the RSV M and M2 proteins with core sequences M213-223 (FKYIKPQSQFI) and M227-37 (YFEWPPHALLV). Peptides containing the epitopes stimulated RSV-specific CD4 T cells to produce gamma interferon (IFN-γ), interleukin 2 (IL-2), and other Th1- and Th2-type cytokines in an I-Ab-restricted pattern. Construction of fluorochrome-conjugated peptide-I-Ab class II tetramers revealed RSV M- and M2-specific CD4 T-
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Tedla, Getachew, Jesse Plotkin, Anthony Dellinger, and Christopher Kepley. "Design and Testing of Dual-Targeted Gd3N@C80-Containing Glioblastoma Theranostics." Journal of Nanomaterials 2019 (March 3, 2019): 1–13. http://dx.doi.org/10.1155/2019/1242930.

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The majority of the malignant brain tumors are gliomas with glioblastoma being the most common and aggressive type. Due to its extreme infiltrative nature and higher occurrence frequency, finding new glioblastoma therapeutics and diagnostics is a high priority. In line with this, we previously synthesized a glioblastoma-targeting theranostic that images and delivers a therapeutic payload of doxorubicin (DXR) to human xenograft tumors. Herein, a dual-targeted theranostic is synthesized on the hypothesis that targeting multiple receptors would enhance delivery precision. Doxorubicin and endo-ful
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Dissertations / Theses on the topic "Conjugated frequency analysis"

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Cavalcanti, Daysy Lira Oliveira. "Estudo comparativo de métodos de estimação de vazões máximas de projeto para grandes bacias hidrográficas." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-02102014-095904/.

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Se por um lado a estimação das vazões máximas pelos métodos tradicionais, estatístico (Análise de Frequência Local - AFL) e determinístico (Cheia Máxima Provável - CMP), vem sendo alvo de críticas, por outro, a Análise de Frequência Conjugada (AFC) e o método do Hidrograma Máximo Mais Provável (HMMP), mais recentemente proposto, evidenciam-se como ferramentas promissoras. A AFC consiste da combinação entre técnicas probabilísticas e determinísticas e o HMMP utiliza os conceitos do Hidrograma Unitário Curvilíneo (HUC) de Mockus e da distribuição temporal de chuvas dada por Huff. Este trabalho t
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Salisbury, Shaun M. "A Method for Characterizing the Properties of Industrial Foams." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd990.pdf.

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Ale, Etrati Khosroshahi Seyed Ali. "A Detailed Analysis of Guard-Heated Wall Shear Stress Sensors for Turbulent Flows." Thesis, 2013. http://hdl.handle.net/1828/4713.

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This thesis presents a detailed, two-dimensional analysis of the performance of multi-element guard-heated hot-film wall shear stress microsensors for turbulent flows. Previous studies of conventional, single-element sensors show that a significant portion of heat generated in the hot-film travels through the substrate before reaching the fluid, causing spectral and phase errors in the wall shear stress signal and drastically reducing the spatial resolution of the sensor. Earlier attempts to reduce these errors have focused on reducing the effective thermal conductivity of the substrate. New g
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Book chapters on the topic "Conjugated frequency analysis"

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Pires, Robson. "Solution Methods of Large Complex-Valued Nonlinear System of Equations." In Advances in Complex Analysis and Applications. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.92741.

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Nonlinear systems of equations in complex plane are frequently encountered in applied mathematics, e.g., power systems, signal processing, control theory, neural networks, and biomedicine, to name a few. The solution of these problems often requires a first- or second-order approximation of nonlinear functions to generate a new step or descent direction to meet the solution iteratively. However, such methods cannot be applied to functions of complex and complex conjugate variables because they are necessarily nonanalytic. To overcome this problem, the Wirtinger calculus allows an expansion of nonlinear functions in its original complex and complex conjugate variables once they are analytic in their argument as a whole. Thus, the goal is to apply this methodology for solving nonlinear systems of equations emerged from applications in the industry. For instances, the complex-valued Jacobian matrix emerged from the power flow analysis model which is solved by Newton-Raphson method can be exactly determined. Similarly, overdetermined Jacobian matrices can be dealt, e.g., through the Gauss-Newton method in complex plane aimed to solve power system state estimation problems. Finally, the factorization method of the aforementioned Jacobian matrices is addressed through the fast Givens transformation algorithm which means the square root-free Givens rotations method in complex plane.
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Chambers, Robert G. "Quality, Valuation, and Welfare." In Competitive Agents in Certain and Uncertain Markets. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190063016.003.0010.

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The analytic structure developed in the first six chapters is applied to quality-differentiated production, quality-differentiated pricing, and consumer welfare analysis. The quality-differentiated production problem is developed as a special case of the multiple-output problem for both nonstochastic and stochastic pricing regimes. The "household production" model of Gorman (1956) and Lancaster (1966) is developed in a conjugate dual framework whose solution for rational individuals obeys the zero-maximum (zero minimum) principle. The nominal concepts of compensating variation and equivalent variation are shown to have real-valued (dual) parallels in the compensating benefit and the equivalent benefit. Real, as opposed to nominal, valuation for traded and nontraded goods is treated in the benefit framework. Directional derivatives of distance functions are used to rationalize the frequently observed empirical discrepancy between willingness-to-pay and willingness-to-accept.
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Bar, Nirjhar, and Sudip Kumar Das. "Applicability of ANN in Adsorptive Removal of Cd(II) from Aqueous Solution." In Handbook of Research on Natural Computing for Optimization Problems. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-5225-0058-2.ch022.

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Cadmium is frequently used and is extremely toxic in relatively low dosages and is one of the principal heavy metals that is responsible for causing kidney damage, high blood pressure, renal disorder, destruction of red blood Cells and bone fracture. Permissible limit to discharge in the inland surface water is 2.0 mg/l, discharge in public sewers is 1.0 mg/l and drinking water is 0.01 mg/l. Adsorption is the only user-friendly technique for the removal of heavy metal. We have developed an ANN model for prediction of percentage removal of Cd(II). A multilayer perceptron with a single hidden layer has been learnt separately by three different algorithms: Backpropagation, Levenberg-Marquardt and Scaled Conjugate Gradient algorithms for analysis purpose. Optimization for each one of the four standard transfer functions (in a single hidden layer) has been carried out in all three cases. The ANN model with Backpropagation algorithm, with the second transfer function and 25 processing elements gives the best predictability of the outlet concentration.
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Bar, Nirjhar, and Sudip Kumar Das. "Applicability of ANN in Adsorptive Removal of Cd(II) from Aqueous Solution." In Waste Management. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1210-4.ch067.

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Cadmium is frequently used and is extremely toxic in relatively low dosages and is one of the principal heavy metals that is responsible for causing kidney damage, high blood pressure, renal disorder, destruction of red blood Cells and bone fracture. Permissible limit to discharge in the inland surface water is 2.0 mg/l, discharge in public sewers is 1.0 mg/l and drinking water is 0.01 mg/l. Adsorption is the only user-friendly technique for the removal of heavy metal. We have developed an ANN model for prediction of percentage removal of Cd(II). A multilayer perceptron with a single hidden layer has been learnt separately by three different algorithms: Backpropagation, Levenberg-Marquardt and Scaled Conjugate Gradient algorithms for analysis purpose. Optimization for each one of the four standard transfer functions (in a single hidden layer) has been carried out in all three cases. The ANN model with Backpropagation algorithm, with the second transfer function and 25 processing elements gives the best predictability of the outlet concentration.
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Conference papers on the topic "Conjugated frequency analysis"

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Madankan, Reza, M. Amin Karami, and Puneet Singla. "Uncertainty Analysis of Energy Harvesting Systems." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-35480.

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This paper presents the relation between uncertainty in the excitation and parameters of vibrational energy harvesting systems and their power output. Nonlinear vibrational energy harvesters are very sensitive to the frequency of the base excitation. If the excitation frequency does not match with the resonance frequency of the energy harvester, the power output significantly deteriorates. The mismatch can be due to the inherent changes of the ambient oscillations. The fabrication errors or gradual changes of material properties also result in the mismatch. This paper quantitatively shows the
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Tang, Ping-Huey, Chang-Chou Hwang, and Cheng-Tsung Liu. "Conjugate Thermal Analysis of a High-Power and High-Frequency Transformer." In 2010 IEEE Industry Applications Society Annual Meeting. IEEE, 2010. http://dx.doi.org/10.1109/ias.2010.5614069.

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Sekhar, S. Chandra, Roland Michaely, Rainer A. Leitgeb, and Michael Unser. "Theoretical analysis of complex-conjugate-ambiguity suppression in frequency-domain optical-coherence tomography." In 2008 5th IEEE International Symposium on Biomedical Imaging (ISBI 2008). IEEE, 2008. http://dx.doi.org/10.1109/isbi.2008.4541016.

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He, L., and M. L. G. Oldfield. "Unsteady Conjugate Heat Transfer Modelling." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59174.

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For high pressure turbine heat transfer designs, a primary requirement is to predict blade metal temperature. There has been considerable recent effort in developing coupled fluid convection and solid conduction (conjugate) heat transfer prediction methods. They are so far, however, confined to steady flows. In the present work, a new approach to conjugate analysis for periodic unsteady flows of practical interest is proposed and demonstrated. This paper starts with a simple model analysis to quantify the huge disparity in time scale between convection and conduction and the implications of th
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Siao, J. C. T., S. B. Dong, and J. Song. "Frequency Spectra of Laminated Piezoelectric Cylinders." In ASME 1991 Design Technical Conferences. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/detc1991-0297.

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Abstract A method is given for determining the entire frequency spectra of a cylinder with cylindrical piezoelectric properties for both propagating modes and edge vibrations. Finite element modeling occurs in the radial direction so that layered profiles can be accommodated. In the vector of displacements and electric potential q(r)exp{iξz + nθ + ωt)}, quadratic polynomials are taken for q(r). Two algebraic eigenvalue problems can be deduced from this finite element formulation depending on whether the axial wave number ξ or the frequency ω acts as the eigenvalue. When real wave number ξ are
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Braun, James, Shengqi Lu, and Guillermo Paniagua. "Development of High Frequency Virtual Thermocouples." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-64669.

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This paper presents a numerical procedure to enhance the frequency response of temperature probes equipped with two thermocouple junctions of different diameter. The output of the two thermocouples exposed to the same flow transient can be used to predict the output of a virtual smaller thermocouple, which cannot be physically realized. The approach is demonstrated numerically, with the aid of conjugate heat transfer simulations performed with 3D Unsteady Reynolds Averaged Navier-Stokes. The dual junction thermocouple with wire diameters of 50 μm, 25 μm were exposed to several inlet temperatur
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Zwiener, Kim, Cassie Carpenter, and Justin Hodges. "Conjugate Heat Transfer Simulation of an Industrial Gas Turbine Blade With Harmonic Balance Method." In ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/gt2021-60276.

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Abstract The performance of turbomachines is often dependent on the unsteady flow fields they naturally produce, owing primarily to row-to-row interactions from both moving and stationary components, as well as the unsteady nature of the turbulent flow. When it comes to computational fluid dynamics, a disparity exists between steady state and transient simulation as far as accuracy is concerned, albeit the computational cost of transient simulation on fully complex industrial hardware can be overwhelming. This study bridges the gap by presenting a harmonic balance conjugate heat transfer simul
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Bhatnagar, Lakshya, and Guillermo Paniagua. "Development of High Speed and High Temperature Atomic Layer Thermopiles." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-91012.

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Abstract This work aims to provide a technique with which high frequency heat flux measurement data can be acquired in systems with high operational temperatures and high-speed flows with quantifiable and accurate uncertainty estimates. This manuscript presents the detailed calibration and application of an atomic layer thermopile, for heat fluxes with a frequency bandwidth of 0 to 1MHz. Two calibration procedures with a detailed uncertainty analysis. The first procedure consists using a laser to deliver radiation heat flux, while the second consists of a convective heat blowdown experiment. T
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Wilson, James, Chris Currie, Michael Jones, and Lewis Davenport. "A Case Study Evaluating the Effects of High Cycle Thermal Loading Within a Pressurised Water Reactor Mixing Tee Using Conjugate CFD/FE Methods." In ASME 2016 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/pvp2016-63233.

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In nuclear plant piping systems thermal fatigue damage can arise at locations where there is turbulent mixing of different temperature flows. The severity of this phenomenon is difficult to assess via plant instrumentation due to the high frequencies involved. NESC report EUR 22763 EN, published in 2007, defines the “Level 1” screening criterion for the design of austenitic stainless steel mixing tees, based on recorded incidents of fatigue cracking in civil power plants. The experimental data indicates that damage due to High Cycle Thermal Loading (HCTL) is unlikely to occur if the temperatur
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Fadl, M., and L. He. "On LES Based Conjugate Heat Transfer Procedure for Transient Natural Convection." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-63600.

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Natural convection prediction closely relevant to flexible operations (e.g. fast and frequent startups and showdowns) of gas turbines and steam turbines presents considerable challenges. The strong inter-dependence between fluid and solid parts points to the need for conjugate heat-transfer (CHT) methods. However, the long time scales of the practical operation processes of interest, and the fundamental fluid-solid time scale disparity raise general issues regarding the computational costs of the CHT methods. In particular, if a high-fidelity flow model (e.g. LES) needing to resolve smaller ti
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