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Articles de revues sur le sujet « Dynamic warm-up with Thera-Band »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 4 février 2022

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1

Yoo, Inhwa, and Hyung-Min Yoon. "The Effect of Two Exercise Types in the 8 Week Exercise Training on the Physical Fitness of Elderly Women." Asian Journal of Kinesiology 22, no. 1 (2020): 15–23. http://dx.doi.org/10.15758/ajk.2020.22.1.15.

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OBJECTIVES The purpose of this study was to investigate the effect of two exercise types (Gyrokinesis exercise and Elastic band exercise) in the 8 week exercise training on the physical fitness of elderly women.METHODS The subjects of this study were 57 elderly women between 65 and 80 years old, who had no abnormality in the Physical Readiness Questionnaire (PAR-Q test) and were able to do physical activity on the orthopedic standpoints. The subjects were divided into three groups: Gyrokinesis Exercise Group (GKEG: n=19), Elastic Band Exercise Group (EBEG: n=20), and Control Group (CG: n=18).

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Nouri, Reza, Klaus Michaeil Braumann, Bahareh Mahmoudieh ChamPiri, Jan Schröder, and Mahdieh Akochakian. "Cancer Related Fatigue and Upper Limb Disabilities Cannot Improve after 6 Weeks Resistance Training with Thera-Band in Breast Cancer Survivors." International Journal of Applied Exercise Physiology 7, no. 2 (2018): 76–84. http://dx.doi.org/10.22631/ijaep.v7i2.263.

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Aim. Breast cancer and its treatments lead to cancer related fatigue and upper limb disabilities. On the other hand, resistance training has positive benefits for breast cancer survivors. Thus, the aim of present study was to clarify the effect of resistance training with Thera – Band on CRF and upper limb disabilities in breast cancer survivors. Methods. Fifty women with breast cancer aged 29-65 were divided in to 2 groups: 1) resistance training with Thera- Band group (n=25) and 2) control group (n=25). Resistance training with Thera- Band group, after 5 minutes warm up, were performed the 9

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Wu, Bing Hui, Bao Jun Pang, and Zong Quan Deng. "Modeling and Simulation of Flexible Band Based on the Muti-Body Dynamics." Key Engineering Materials 458 (December 2010): 200–205. http://dx.doi.org/10.4028/www.scientific.net/kem.458.200.

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To provide theory and technique support for the research on dynamic properties of flexible lock-unlock technology, dynamic equation of band is built up based on the muti-body dynamics. Simulation based on modal neutral file and mixed model with rigid and flexible properties are accomplished in the software of ADAMS. The result reveals that the later one is much closed to the actual movement.

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Chen, Funan, Huili Bi, Soo-Hwang Ahn, Zhongyu Mao, Yongyao Luo, and Zhengwei Wang. "Investigation on Dynamic Stresses of Pump-Turbine Runner during Start Up in Turbine Mode." Processes 9, no. 3 (2021): 499. http://dx.doi.org/10.3390/pr9030499.

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The startup process occurs frequently for pumped storage units. During this process, the rotating rate that changes rapidly and unsteady flow in runner cause the complex dynamic response of runner, sometimes even resonance. The sharp rise of stress and the large-amplitude dynamic stresses of runner will greatly shorten the fatigue life. Thus, the study of start-up process in turbine mode is critical to the safety operation. This paper introduced a method of coupling one dimensional (1D) pipeline calculation and three-dimensional computational dynamics (3D CFD) simulation to analyze transient u

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Chen, Hong Mei, Hua Shun Yu, Guang Hui Min, and Yun Xue Jin. "Study on the Microstructure and Texture of Warm Rolled ZK60 Magnesium Alloy Sheet." Advanced Materials Research 557-559 (July 2012): 1344–48. http://dx.doi.org/10.4028/www.scientific.net/amr.557-559.1344.

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The microstructure and macrotexture of ZK60 alloy sheet were investigated through OM and XRD, which were produced by twin roll casting and sequential warm rolling. Microstructure of twin roll cast ZK60 alloy changed from dendrite structure to fibrous structure with elongated grains and high density shear bands along the rolling direction after warm rolling process at different rolling parameters. The density of shear bands increased with the decreasing of the rolling temperature, or the increasing of per pass rolling reduction. Dynamic recrystallization could be found during the warm rolling p

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Sasaki, Hideharu, Bunmei Taguchi, Nobumasa Komori, and Yukio Masumoto. "Influence of Local Dynamical Air–Sea Feedback Process on the Hawaiian Lee Countercurrent." Journal of Climate 26, no. 18 (2013): 7267–79. http://dx.doi.org/10.1175/jcli-d-12-00586.1.

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Abstract Local air–sea interactions over the high sea surface temperature (SST) band along the Hawaiian Lee Countercurrent (HLCC) are examined with a focus on dynamical feedback of SST-induced wind stress to the ocean using the atmosphere–ocean coupled general circulation model (CGCM). A pair of ensemble CGCM simulations are compared to extract the air–sea interactions associated with HLCC: the control simulations and other simulations, the latter purposely eliminating influences of the high SST band on the sea surface flux computations in the CGCM. The comparison reveals that oceanic response

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Battaglia, Alessandro, Pavlos Kollias, Ranvir Dhillon, Katia Lamer, Marat Khairoutdinov, and Daniel Watters. "Mind the gap – Part 2: Improving quantitative estimates of cloud and rain water path in oceanic warm rain using spaceborne radars." Atmospheric Measurement Techniques 13, no. 9 (2020): 4865–83. http://dx.doi.org/10.5194/amt-13-4865-2020.

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Abstract. The intrinsic small spatial scales and low-reflectivity structure of oceanic warm precipitating clouds suggest that millimeter spaceborne radars are best suited to providing quantitative estimates of cloud and rain liquid water paths (LWPs). This assertion is based on their smaller horizontal footprint; high sensitivities; and a wide dynamic range of path-integrated attenuations associated with warm-rain cells across the millimeter wavelength spectrum, with diverse spectral responses to rain and cloud partitioning. State-of-the-art single-frequency radar profiling algorithms of warm

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Fujii, Y., W. E. Tobler, E. M. Clausing, T. W. Megli, and M. Haghgooie. "Application of dynamic band brake model for enhanced drivetrain simulation." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 216, no. 11 (2002): 873–81. http://dx.doi.org/10.1243/095440702321031423.

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In a modern vehicle design process, analytical tools are widely employed to complement experimental approaches for design evaluation. When effectively utilized, they lead to a reduced development time with improved vehicle performance. The development process of an automatic transmission (AT) system can benefit from an analytical representation which accurately captures AT shifting behaviours. In a typical AT system, friction components such as wet clutches and band brakes are utilized to alter planetary gear configurations for automatic shifting. Thus, an accurate representation of friction c

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Vazza, F., S. Ettori, M. Roncarelli, M. Angelinelli, M. Brüggen, and C. Gheller. "Detecting shocked intergalactic gas with X-ray and radio observations." Astronomy & Astrophysics 627 (June 25, 2019): A5. http://dx.doi.org/10.1051/0004-6361/201935439.

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Detecting the thermal and non-thermal emission from the shocked cosmic gas surrounding large-scale structures represents a challenge for observations, as well as a unique window into the physics of the warm-hot intergalactic medium. In this work, we present synthetic radio and X-ray surveys of large cosmological simulations in order to assess the chances of jointly detecting the cosmic web in both frequency ranges. We then propose best observing strategies tailored for existing (LOFAR, MWA, and XMM) or future instruments (SKA-LOW and SKA-MID, Athena, and eROSITA). We find that the most promisi

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Wojtowicz, Sebastian, Anna Daniluk, Karolina Wiaderna, et al. "ASSESSMENT OF IMPACT OF ACTIVATION OF HIP JOINT ABDUCTORS AND EXTERNAL ROTATORS ON GAIT AND RUNNNING PARAMETERS IN HEALTHY PEOPLE - PILOT STUDY." Acta kinesiologica, N1 2021 (2021): 120–26. http://dx.doi.org/10.51371/issn.1840-2976.2021.15.1.14.

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Many physiotherapists and motor preparation coaches recommend including resistance exercises for the hip joint abductors and external rotators in a warm-up. Muscle activation with resistance band exercises is believed to improve positional control of the pelvis and the lower limbs, thus reducing the risk of musculoskeletal injury during rehabilitation or training proper. The aim of this study was to assess the impact of a single session of activation of hip joint abductors and external rotators on gait and running parameters in healthy people. The study involved 54 healthy individuals aged 19-

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Kingsmill, David E., Paul J. Neiman, F. Martin Ralph, and Allen B. White. "Synoptic and Topographic Variability of Northern California Precipitation Characteristics in Landfalling Winter Storms Observed during CALJET." Monthly Weather Review 134, no. 8 (2006): 2072–94. http://dx.doi.org/10.1175/mwr3166.1.

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Abstract Observations from northern California during the California Landfalling Jets (CALJET) experiment are used to examine the mean characteristics of precipitation and their variances as functions of synoptic and topographic regimes. Ten cases involving the landfall of extratropical cyclones are analyzed with radar and rain gauge data collected at two sites: one in the coastal mountains north of San Francisco (CZD) and the other in the Central Valley just west of Sacramento (KDAX). Aside from the melting-layer bright band, the most striking feature in the 10-case composite vertical profile

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McPhee, M. G. "Analysis and Prediction of Short-Term Ice Drift." Journal of Offshore Mechanics and Arctic Engineering 110, no. 1 (1988): 94–100. http://dx.doi.org/10.1115/1.3257130.

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Techniques for kinematic analysis and dynamic, “free-drift” ice modeling are described and applied to interpretation of ice-drift data from recent marginal ice zone (MIZ) experiments. Kinematic description is based on a complex demodulation algorithm that separates inertial and tidal components from lower frequency, “synoptic” drift. Complex demodulation produces the time series of phasors (complex numbers describing phase and amplitude of the oscillating components), useful for separating the physical processes active in the upper ocean/ice system. Free-drift ice motion modeling utilizes a si

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Diba, Ibrahima, Moctar Camara, and Arona Diedhiou. "Investigating West African Monsoon Features in Warm Years Using the Regional Climate Model RegCM4." Atmosphere 10, no. 1 (2019): 23. http://dx.doi.org/10.3390/atmos10010023.

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This study investigates the changes in West African monsoon features during warm years using the Regional Climate Model version 4.5 (RegCM4.5). The analysis uses 30 years of datasets of rainfall, surface temperature and wind parameters (from 1980 to 2009). We performed a simulation at a spatial resolution of 50 km with the RegCM4.5 model driven by ERA-Interim reanalysis. The rainfall amount is weaker over the Sahel (western and central) and the Guinea region for the warmest years compared to the coldest ones. The analysis of heat fluxes show that the sensible (latent) heat flux is stronger (we

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Teshiba, M., H. Hashiguchi, S. Fukao, and Y. Shibagaki. "Typhoon 9707 observations with the MU radar and L-band boundary layer radar." Annales Geophysicae 19, no. 8 (2001): 925–31. http://dx.doi.org/10.5194/angeo-19-925-2001.

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Abstract. Typhoon 9707 (Opal) was observed with the VHF-band Middle and Upper atmosphere (MU) radar, an L-band boundary layer radar (BLR), and a vertical-pointing C-band meteorological radar at the Shigaraki MU Observatory in Shiga prefecture, Japan on 20 June 1997. The typhoon center passed about 80 km southeast from the radar site. Mesoscale precipitating clouds developed due to warm-moist airmass transport from the typhoon, and passed over the MU radar site with easterly or southeasterly winds. We primarily present the wind behaviour including the vertical component which a conventional met

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Hsu, Hsiao-ming, Mitchell W. Moncrieff, Wen-wen Tung, and Changhai Liu. "Multiscale Temporal Variability of Warm-Season Precipitation over North America: Statistical Analysis of Radar Measurements." Journal of the Atmospheric Sciences 63, no. 9 (2006): 2355–68. http://dx.doi.org/10.1175/jas3752.1.

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Abstract Directionally averaged time series of precipitation rates for eight warm seasons (1996–2003) over the continental United States derived from Next Generation Weather Radar (NEXRAD) measurements are analyzed using spectral decomposition methods. For the latitudinally averaged data, in addition to previously identified diurnal and semidiurnal cycles, the temporal spectra show cross-scale self-similarity and periodicity. This property is revealed by a power-law scaling with an exponent of −4/3 for the frequency band higher than semidiurnal and −3/4 for the 1–3-day band. For the longitudin

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Vliegenthart, Gerard A., Arvind Ravichandran, Marisol Ripoll, Thorsten Auth, and Gerhard Gompper. "Filamentous active matter: Band formation, bending, buckling, and defects." Science Advances 6, no. 30 (2020): eaaw9975. http://dx.doi.org/10.1126/sciadv.aaw9975.

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Motor proteins drive persistent motion and self-organization of cytoskeletal filaments. However, state-of-the-art microscopy techniques and continuum modeling approaches focus on large length and time scales. Here, we perform component-based computer simulations of polar filaments and molecular motors linking microscopic interactions and activity to self-organization and dynamics from the filament level up to the mesoscopic domain level. Dynamic filament cross-linking and sliding and excluded-volume interactions promote formation of bundles at small densities and of active polar nematics at hi

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Tikhomirov, S. A. "Ultrafast dynamics and mechanisms of non-stationary absorption in thin gallium selenide samples." Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series 57, no. 1 (2021): 99–107. http://dx.doi.org/10.29235/1561-2430-2021-57-1-99-107.

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Herein, the dynamics and mechanisms of induced absorption in thin samples of gallium selenide under various excitation conditions are studied using femtosecond kinetic spectroscopy. We have registered several types of induced changes including induced absorption on free charge carriers (“hot” and thermalized electrons), bleaching and absorption due to the population of near-edge trap or exciton states, as well as rapid changes in the absorption of probing radiation in the region of the overlap of the exciting and probing pulses due to two-quantum two-frequency interband transitions. The time r

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Cveticanin, L., and I. Kovacic. "On the Dynamics of Bodies With Continual Mass Variation." Journal of Applied Mechanics 74, no. 4 (2006): 810–15. http://dx.doi.org/10.1115/1.2711231.

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In this paper the differential equations of the general motion of the rigid body with continual mass variation are considered. The impact force and the impact torque that occur due to addition or separation of the body with velocity and angular velocity which differs from the velocity of mass center and angular velocity of the existing body are introduced. The theoretical consideration is applied for solving a real technical problem when the band winds up on the drum. The plane motion of the drum on which the band winds up is considered. The influence of the velocity of the band on the angular

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Eklund, Henrik, Sven Wedemeyer, Mikolaj Szydlarski, Shahin Jafarzadeh, and Juan Camilo Guevara Gómez. "The Sun at millimeter wavelengths." Astronomy & Astrophysics 644 (December 2020): A152. http://dx.doi.org/10.1051/0004-6361/202038250.

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Context. Solar observations with the Atacama Large Millimeter/sub-millimeter Array (ALMA) facilitate studies of the atmosphere of the Sun at chromospheric heights at high spatial and temporal resolution at millimeter wavelengths. Aims. ALMA intensity data at millimeter(mm)-wavelengths are used for a first detailed systematic assessment of the occurrence and properties of small-scale dynamical features in the quiet Sun. Methods. We analyzed ALMA Band 3 data (∼3 mm/100 GHz) with a spatial resolution of ∼1.4–2.1 arcsec and a duration of ∼40 min together with SDO/HMI magnetograms. The temporal evo

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Kepert, Jeffrey D. "The Boundary Layer Dynamics of Tropical Cyclone Rainbands." Journal of the Atmospheric Sciences 75, no. 11 (2018): 3777–95. http://dx.doi.org/10.1175/jas-d-18-0133.1.

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Abstract Spiral bands are ubiquitous features in tropical cyclones and significantly affect boundary layer thermodynamics, yet knowledge of their boundary layer dynamics is lacking. Prompted by recent work that has shown that relatively weak axisymmetric vorticity perturbations outside of the radius of maximum winds in tropical cyclones can produce remarkably strong frictional convergence, and by the observation that most secondary eyewalls appear to form by the “wrapping up” of a spiral rainband, the effect of asymmetric vorticity features that mimic spiral bands is studied. The mass field co

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Vannière, Benoît, Arnaud Czaja, Helen Dacre, and Tim Woollings. "A “Cold Path” for the Gulf Stream–Troposphere Connection." Journal of Climate 30, no. 4 (2017): 1363–79. http://dx.doi.org/10.1175/jcli-d-15-0749.1.

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Abstract The mechanism by which the Gulf Stream sea surface temperature (SST) front anchors a band of precipitation on its warm edge is still a matter of debate, and little is known about how synoptic activity contributes to the mean state. In the present study, the influence of the SST front on precipitation is investigated during the course of a single extratropical cyclone using a regional configuration of the Met Office Unified Model. The comparison of a control run with a simulation in which SST gradients were smoothed brought the following conclusions: a band of precipitation is reproduc

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Lee, Hansoo, Shannon D. Thomas, Sharath Paravastu, Tracie Barber, and Ramon L. Varcoe. "Dynamic Banding (DYBAND) Technique for Symptomatic High-Flow Fistulae." Vascular and Endovascular Surgery 54, no. 1 (2019): 5–11. http://dx.doi.org/10.1177/1538574419874934.

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Introduction: High flow rates may develop in arteriovenous fistula (AVF), resulting in clinical syndromes of steal, aneurysmal fistula, or high-output cardiac failure. Various techniques with varying success have been advocated to treat this difficult problem. We present a hemodynamically validated novel banding technique. Methods: We designed a computational fluid dynamic (CFD) model of the native high-flow AVF and tested various juxta-anastomotic venous diameters to determine the effect on AVF blood flow and pressure. We translated this principle in our banding technique, wherein adjustable

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Halliday, C., D. Carter, Z. C. Jackson, T. J. Bridges, N. W. Evans, and M. I. Wilkinson. "Dynamics of the Halo of the Andromeda Galaxy M31." Symposium - International Astronomical Union 209 (2003): 629–32. http://dx.doi.org/10.1017/s0074180900209893.

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We present an investigation of the halo dynamics of M31 using planetary nebulae velocities. We have performed on-band [OIII] and off-band continuum imaging for a 3.6 square degree area centred on M31 and follow-up spectroscopy for over 600 planetary nebulae candidates. In the future the halo mass will be measured and the mass distribution and velocity anisotropy will be constrained as a function of radius.

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Gurbatov, Sergey, and Efim Pelinovsky. "Probabilistic characteristics of narrow-band long-wave run-up onshore." Natural Hazards and Earth System Sciences 19, no. 9 (2019): 1925–35. http://dx.doi.org/10.5194/nhess-19-1925-2019.

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Abstract. The run-up of random long-wave ensemble (swell, storm surge, and tsunami) on the constant-slope beach is studied in the framework of the nonlinear shallow-water theory in the approximation of non-breaking waves. If the incident wave approaches the shore from the deepest water, run-up characteristics can be found in two stages: in the first stage, linear equations are solved and the wave characteristics at the fixed (undisturbed) shoreline are found, and in the second stage the nonlinear dynamics of the moving shoreline is studied by means of the Riemann (nonlinear) transformation of

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Leon, David C., Jeffrey R. French, Sonia Lasher-Trapp, et al. "The Convective Precipitation Experiment (COPE): Investigating the Origins of Heavy Precipitation in the Southwestern United Kingdom." Bulletin of the American Meteorological Society 97, no. 6 (2016): 1003–20. http://dx.doi.org/10.1175/bams-d-14-00157.1.

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Abstract The Convective Precipitation Experiment (COPE) was a joint U.K.–U.S. field campaign held during the summer of 2013 in the southwest peninsula of England, designed to study convective clouds that produce heavy rain leading to flash floods. The clouds form along convergence lines that develop regularly as a result of the topography. Major flash floods have occurred in the past, most famously at Boscastle in 2004. It has been suggested that much of the rain was produced by warm rain processes, similar to some flash floods that have occurred in the United States. The overarching goal of C

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Zheng, Zhang, Liu, Liu, and Che. "A Study of Vertical Structures and Microphysical Characteristics of Different Convective Cloud–Precipitation Types Using Ka-Band Millimeter Wave Radar Measurements." Remote Sensing 11, no. 15 (2019): 1810. http://dx.doi.org/10.3390/rs11151810.

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Millimeter wave cloud radar (MMCR) is one of the primary instruments employed to observe cloud–precipitation. With appropriate data processing, measurements of the Doppler spectra, spectral moments, and retrievals can be used to study the physical processes of cloud–precipitation. This study mainly analyzed the vertical structures and microphysical characteristics of different kinds of convective cloud–precipitation in South China during the pre-flood season using a vertical pointing Ka-band MMCR. Four kinds of convection, namely, multi-cell, isolated-cell, convective–stratiform mixed, and war

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Dacre, H. F., O. Martínez-Alvarado, and C. O. Mbengue. "Linking Atmospheric Rivers and Warm Conveyor Belt Airflows." Journal of Hydrometeorology 20, no. 6 (2019): 1183–96. http://dx.doi.org/10.1175/jhm-d-18-0175.1.

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Abstract Extreme precipitation associated with extratropical cyclones can lead to flooding if cyclones track over land. However, the dynamical mechanisms by which moist air is transported into cyclones is poorly understood. In this paper we analyze airflows within a climatology of cyclones in order to understand how cyclones redistribute moisture stored in the atmosphere. This analysis shows that within a cyclone’s warm sector the cyclone-relative airflow is rearwards relative to the cyclone propagation direction. This low-level airflow (termed the feeder airstream) slows down when it reaches

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Sampe, Takeaki, and Shang-Ping Xie. "Large-Scale Dynamics of the Meiyu-Baiu Rainband: Environmental Forcing by the Westerly Jet*." Journal of Climate 23, no. 1 (2010): 113–34. http://dx.doi.org/10.1175/2009jcli3128.1.

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Abstract Meiyu-baiu is the major rainy season from central China to Japan brought by a zonally elongated rainband from June to mid-July. Large-scale characteristics and environmental forcing of this important phenomenon are investigated based on a reanalysis dataset. The meiyu-baiu rainband is accompanied by a trough of sea level pressure, horizontal shears, and sharp moisture gradients near the surface, a westerly jet tilted northward with height, and large northeastward moisture transport from the south. The analysis here reveals the westerly jet as an important culprit for meiyu-baiu. Along

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Padmalatha, Pournami, and Susy Thomas. "Discrete time reaching law based variable structure control for fast reaching with reduced chattering." IAES International Journal of Robotics and Automation (IJRA) 9, no. 1 (2020): 51. http://dx.doi.org/10.11591/ijra.v9i1.pp51-61.

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In this paper, a variable structure control law is proposed for discrete time sliding mode control so as to reduce both reaching time and quasi sliding mode band reduction. This new law is composed of two different sliding variable dynamics; one to achieve fast reaching and the other to counter its effect on widening the quasi sliding mode band. This is accomplished<br />by introducing a boundary layer around the sliding surface about which the transformation of the sliding variable dynamics takes place. This provides the flexibility to choose the initial dynamics in such a way as to spe

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Marcisz, J., W. Burian, R. Rozmus, and J. Janiszewski. "Microstructural Changes of the Nanostructured Bainitic Steel Induced by Quasi-Static and Dynamic Deformation." Archives of Metallurgy and Materials 62, no. 4 (2017): 2317–29. http://dx.doi.org/10.1515/amm-2017-0341.

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AbstractChanges in the microstructure of nanostructured bainitic steel induced by quasi-static and dynamic deformation have been shown in the article. The method of deformation and strain rate have important impact on the microstructure changes especially due to strain localization. Microstructure of nanostructured steel Fe-0.6%C-1.9Mn-1.8Si-1.3Cr-0.7Mo consists of nanometer size carbide-free bainite laths and 20-30% volume fraction of retained austenite. Quasi-static and dynamic (strain rate up to 2×102s−1) compression tests were realized using Gleeble simulator. Dynamic deformation at the st

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Bou, Jordi, Antònia Caritat, and Lluís Vilar. "Litterfall and growth dynamics relationship with the meteorological variability in three forests in the Montseny natural park." Folia Forestalia Polonica 57, no. 3 (2015): 145–59. http://dx.doi.org/10.1515/ffp-2015-0015.

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AbstractWe assessed the influence of some environmental conditions (temperature and rainfall) on the litterfall and BAI (basal area increment), in three close forests in the Montseny massif (NE part of the Iberian peninsula, Spain). Two of them are composed of deciduous speciesFagus sylvaticaandQuercus petraea, and the other one is a Mediterranean evergreen species,Quercus ilex. We have collected monthly data about litterfall and radial growth since 2007. For each forest there are tree plots, with litterfall traps and band dendrometers. This data has been related with the meteorological parame

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Oertel, Annika, Maxi Boettcher, Hanna Joos, Michael Sprenger, and Heini Wernli. "Potential vorticity structure of embedded convection in a warm conveyor belt and its relevance for large-scale dynamics." Weather and Climate Dynamics 1, no. 1 (2020): 127–53. http://dx.doi.org/10.5194/wcd-1-127-2020.

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Abstract. Warm conveyor belts (WCBs) are important airstreams in extratropical cyclones. They can influence large-scale flow evolution by modifying the potential vorticity (PV) distribution during their cross-isentropic ascent. Although WCBs are typically described as slantwise-ascending and stratiform-cloud-producing airstreams, recent studies identified convective activity embedded within the large-scale WCB cloud band. However, the impacts of this WCB-embedded convection have not been investigated in detail. In this study, we systematically analyze the influence of embedded convection in an

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Inoue, Satoru, Mitsuru Tamaki, Hiroshi Kawazoe, and Masayuki Yamane. "Estimation of the infrared absorption of ZnCl2–KBr glass by molecular dynamics." Journal of Materials Research 2, no. 3 (1987): 357–60. http://dx.doi.org/10.1557/jmr.1987.0357.

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Molecular dynamic calculations have been made on glasses in the ZnCl2–KBr system in order to estimate the infrared (IR) absorption of these glasses. Oxygen-free glass was estimated to be transparent up to 25 μm. Glasses containing oxygen impurities were estimated to be transparent only up to 16 μm, with a weak absorption band around 10.4 μm. This agrees with experimental results of glasses in the ZnCl2–KBr–PbBr2 system.

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Pole, Stephen J. "Application of Matlab and Simulink to a Low-Lift Sump System." Measurement and Control 25, no. 8 (1992): 234–39. http://dx.doi.org/10.1177/002029409202500802.

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This paper describes the application of a computer-aided control system design (CACSD) tool known as Simulink. Simulink is a modern non-linear dynamic simulation tool and forms an extension to Matlab,* adding many features specific to dynamic systems. The application of Simulink to a water treatment works pumping station is outlined. The objective is to enable a complex simulation model of the plant (block diagram descriptions), including all relevant process dynamics, to be easily built up. Using this simulation model a control strategy is designed to maintain the water level in a two well su

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Shiau, L. J., S. C. Clemens, M. T. Chen, M. Yamamoto, and Y. Yokoyama. "SST phases in the open-ocean and margins of the tropical Pacific; implication on tropical climate dynamics." Climate of the Past Discussions 10, no. 2 (2014): 1857–99. http://dx.doi.org/10.5194/cpd-10-1857-2014.

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Abstract. The tropical Pacific exerts a major effect on the global climate system and might have driven large extra-tropical climate change. We present a 320 kyr high resolution UK'37-sea surface temperature (SST) record from core MD052928 (11°17.26' S, 148°51.60' E, water depth 2250 m) located off southeastern Papua New Guinea (PNG), in the western tropical Pacific. The age model of the core is based on AMS 14C dating of planktic foraminifers and correlation of benthic to the LR04 stack. The UK'37-SST ranges from 26.5 to 29 °C, showing glacial–interglacial and millennial variations. We assess

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James, P. M., and D. Peters. "The Lagrangian structure of ozone mini-holes and potential vorticity anomalies in the Northern Hemisphere." Annales Geophysicae 20, no. 6 (2002): 835–46. http://dx.doi.org/10.5194/angeo-20-835-2002.

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Abstract. An ozone mini-hole is a synoptic-scale area of strongly reduced column total ozone, which undergoes a growth-decay cycle in association with baroclinic weather systems. The tracks of mini-hole events recorded during the TOMS observation period over the Northern Hemisphere provide a database for building anomaly fields of various meteorological parameters, following each mini-hole center in a Lagrangian sense. The resulting fields provide, for the first time, a complete mean Lagrangian picture of the three-dimensional structure of typical ozone mini-holes in the Northern Hemisphere. M

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Yamamoto, M., H. Sai, M. T. Chen, and M. Zhao. "The East Asian winter monsoon variability in response to precession during the past 150 000 yr." Climate of the Past 9, no. 6 (2013): 2777–88. http://dx.doi.org/10.5194/cp-9-2777-2013.

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Abstract. The response of the East Asian winter monsoon variability to orbital forcing is still unclear, and hypotheses are controversial. We present a 150 000 yr record of sea surface temperature difference (ΔSST) between the South China Sea and other Western Pacific Warm Pool regions as a proxy for the intensity of the Asian winter monsoon, because the winter cooling of the South China Sea is caused by the cooling of surface water at the northern margin and the southward advection of cooled water due to winter monsoon winds. The ΔSST showed dominant precession cycles during the past 150 000

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Hu, R. C., X. F. Wang, X. D. Gu, and R. H. Huan. "Nonlinear Stochastic Optimal Control of MDOF Partially Observable Linear Systems Excited by Combined Harmonic and Wide-Band Noises." International Journal of Structural Stability and Dynamics 19, no. 03 (2019): 1950019. http://dx.doi.org/10.1142/s0219455419500196.

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In this paper, nonlinear stochastic optimal control of multi-degree-of-freedom (MDOF) partially observable linear systems subjected to combined harmonic and wide-band random excitations is investigated. Based on the separation principle, the control problem of a partially observable system is converted into a completely observable one. The dynamic programming equation for the completely observable control problem is then set up based on the stochastic averaging method and stochastic dynamic programming principle, from which the nonlinear optimal control law is derived. To illustrate the feasib

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Dabrowski, Bartosz, Paweł Flisek, Katarzyna Mikuła, et al. "Type III Radio Bursts Observations on 20th August 2017 and 9th September 2017 with LOFAR Bałdy Telescope." Remote Sensing 13, no. 1 (2021): 148. http://dx.doi.org/10.3390/rs13010148.

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We present the observations of two type III solar radio events performed with LOFAR (LOw-Frequency ARray) station in Bałdy (PL612), Poland in single mode. The first event occurred on 20th August 2017 and the second one on 9th September 2017. Solar dynamic spectra were recorded in the 10 MHz up to 90 MHz frequency band. Together with the wide frequency bandwidth LOFAR telescope (with single station used) provides also high frequency and high sensitivity observations. Additionally to LOFAR observations, the data recorded by instruments on boards of the Interface Region Imaging Spectrograph (IRIS

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JOVANOVIĆ, GORAN, DARKO MITIĆ, MILE STOJČEV, and DRAGAN ANTIĆ. "SELF-TUNING BIQUAD BAND-PASS FILTER." Journal of Circuits, Systems and Computers 22, no. 03 (2013): 1350008. http://dx.doi.org/10.1142/s0218126613500084.

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One approach to design self-tuning gm-C biquad band-pass filter is considered in this paper. The phase control loop is introduced to force filter central frequency to be equal to input signal frequency what is achieved by adjusting the amplifier transconductance gm. Thanks to that, the filter is robust to parameter perturbations and it can be used as a selective amplifier. In the full tuning range, it has a constant maximum gain at central frequency as well as a constant bandwidth. The 0.25 μm SiGe BiCMOS technology was used during design and verification of the band-pass filter. The filter ha

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Jensen, S. S., J. K. Jørgensen, L. E. Kristensen, et al. "ALMA observations of water deuteration: a physical diagnostic of the formation of protostars." Astronomy & Astrophysics 631 (October 15, 2019): A25. http://dx.doi.org/10.1051/0004-6361/201936012.

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Context. How water is delivered to planetary systems is a central question in astrochemistry. The deuterium fractionation of water can serve as a tracer for the chemical and physical evolution of water during star formation and can constrain the origin of water in Solar System bodies. Aims. The aim is to determine the HDO/H2O ratio in the inner warm gas toward three low-mass Class 0 protostars selected to be in isolated cores, i.e., not associated with any cloud complexes. Previous sources for which the HDO/H2O ratio have been established were all part of larger star-forming complexes. Determi

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Oprea, I. C., and A. Bell. "Meteorological environment of a tornado outbreak in Southern Romania." Natural Hazards and Earth System Sciences 9, no. 2 (2009): 609–22. http://dx.doi.org/10.5194/nhess-9-609-2009.

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Abstract. On 7 May 2005, a squall line with an embedded bow echo formed over Southern Romania causing severe wind damage. The length of the wind damage was around 150 km. Three tornadoes have been reported, two of them being recorded by video camera. One of the tornadoes occurred in Buftea (near Bucharest), the second in Ciobanu village (near Medgidia radar site) and the third in Movilita village, 40 km to the northeast of Bucharest. The site surveys confirmed wind damage associated with these tornadoes. Based on damage, the Movilita village tornado was classified as an F1 type on the Fujita s

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Manzhos, Sergei. "Effects of Nuclear Vibrations on the Energetics of Polythiophene: Quantized Energy Molecular Dynamics." Australian Journal of Chemistry 66, no. 9 (2013): 1021. http://dx.doi.org/10.1071/ch13112.

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The effects of nuclear dynamics on the energetics of polythiophene relevant for the performance of organic solar cells are studied for the first time. Nuclear motions change the expectation values of frontier orbital energies and the band gap by ~0.1 eV versus values at the equilibrium geometry, which is expected to have a significant effect on light absorption, charge separation, and donor regeneration. A new molecular dynamics algorithm that accounts for the quantum nature of vibrations is introduced. It reproduces effects of temperature and deuteration that are lost in the standard molecula

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Midgett, Madeline, Sevan Goenezen, and Sandra Rugonyi. "Blood flow dynamics reflect degree of outflow tract banding in Hamburger–Hamilton stage 18 chicken embryos." Journal of The Royal Society Interface 11, no. 100 (2014): 20140643. http://dx.doi.org/10.1098/rsif.2014.0643.

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Altered blood flow during embryonic development has been shown to cause cardiac defects; however, the mechanisms by which the resulting haemodynamic forces trigger heart malformation are unclear. This study used heart outflow tract banding to alter normal haemodynamics in a chick embryo model at HH18 and characterized the immediate blood flow response versus the degree of band tightness. Optical coherence tomography was used to acquire two-dimensional longitudinal structure and Doppler velocity images from control ( n = 16) and banded ( n = 25, 6–64% measured band tightness) embryos, from whic

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Mazón, J., and D. Pino. "The role of nocturnal Low-Level-Jet in nocturnal convection and rainfalls in the west Mediterranean coast: the episode of 14 December 2010 in northeast of Iberian Peninsula." Advances in Science and Research 8, no. 1 (2012): 27–31. http://dx.doi.org/10.5194/asr-8-27-2012.

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Abstract. The night of 14 December 2010 radar images of the Spanish Weather Agency recorded a large rain band that moved offshore at the Northeast coast of the Iberian Peninsula. MM5 mesoscale model is used to study the atmospheric dynamics during that day. A Nocturnal Low Level Jet (NLLJ) generated by an inertial oscillation that brings cold air to the coast from inland has been simulated in the area. This cold air interacts with a warmer air mass some kilometers offshore. According to the MM5 mesoscale model simulation, the cold air enhances upward movements of the warm air producing condens

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Roundy, Paul E. "Regression Analysis of Zonally Narrow Components of the MJO." Journal of the Atmospheric Sciences 71, no. 11 (2014): 4253–75. http://dx.doi.org/10.1175/jas-d-13-0288.1.

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Abstract Recent works have demonstrated that eastward-propagating features smaller than zonal wavenumber 3 but with spatial structures similar to those of the Madden–Julian oscillation (MJO) frequently develop over the Indo-Pacific warm pool. These signals are characterized by periods shorter than 4 weeks, but since they occur as part of a spectral peak of the MJO, they might be characterized by similar physics. These zonally narrow features occur at any phase of traditionally defined 30–60-day MJO events, but they occur most frequently in its active convective phase. This work presents a line

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Taie, Shintaro, Hideki Ozawa, Tomohiro Ichinose, Takuei Nishio, Shuta Nakajima, and Yoshiro Takahashi. "Coherent driving and freezing of bosonic matter wave in an optical Lieb lattice." Science Advances 1, no. 10 (2015): e1500854. http://dx.doi.org/10.1126/sciadv.1500854.

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Although kinetic energy of a massive particle generally has quadratic dependence on its momentum, a flat, dispersionless energy band is realized in crystals with specific lattice structures. Such macroscopic degeneracy causes the emergence of localized eigenstates and has been a key concept in the context of itinerant ferromagnetism. We report the realization of a “Lieb lattice” configuration with an optical lattice, which has a flat energy band as the first excited state. Our optical lattice potential has various degrees of freedom in its manipulation, which enables coherent transfer of a Bos

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Xu, Guang-Hui. "Dynamic Parameter Optimization and Experimental Study of Tuned Slab Damper on Metro Systems." Shock and Vibration 2019 (February 17, 2019): 1–14. http://dx.doi.org/10.1155/2019/1236827.

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With the increase of axle weight and speed, the interaction between vehicles and the track becomes more and more intense, and the problem of wheel-rail dynamic action is more serious. In order to reduce the low-frequency vibration caused by train operation, a three-layer elastic track damping structure is proposed. The complex method is used to optimize the dynamic parameters, structural patterns, and coupling relations of the track structure, which allows multiple elastic units to work in harmony with each other to achieve the effects of absorbing vibration energy and reducing vibration trans

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Alves Pires, Felipe, Luca Sangiuliano, Noé Geraldo Rocha de Melo Filho, et al. "Resonant metamaterial designs for a broadband mitigation of flow-induced vibrations." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 3 (2021): 3235–46. http://dx.doi.org/10.3397/in-2021-2344.

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Resonant metamaterials have recently emerged as lightweight and performant noise and vibration solutions for the hard-to-address low-frequency ranges. These engineered materials are made by an assembly of resonant elements onto a host structure. Their interaction leads to tuneable frequency ranges, known as stop bands, in which they can outperform classical noise control measures. However, these stop bands have a limited frequency range effect. To broaden the noise and vibration performance also outside the stop band, this paper presents a design approach for a finite resonant metamaterial pla

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Zhao, Zi Yue, Zhi Hong Fan, Jing Jun Zhang, and Zi Qiang Xia. "Research on Ride Comfort of Nonlinear Vehicle Suspension." Advanced Materials Research 605-607 (December 2012): 443–47. http://dx.doi.org/10.4028/www.scientific.net/amr.605-607.443.

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In this paper, in order to study the effect of nonlinear suspension system, a nonlinear dynamic model considering nonlinearity of suspension is built and another model with the respective of linear suspension system is developed which is for comparison. Then the dynamic equation of the model is set up. The simulation is accomplished through MATLAB/SIMULINK. It is found that the band-limited white noise module can simulate the power spectral density of road surface well. Finally, numerical simulation results indicates that an appropriate nonlinear suspension model fits reality better than a lin

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