Relevant bibliographies by topics / Degree of disturbance

Contents

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

Academic literature on the topic 'Degree of disturbance'

Author: Grafiati
Published: 28 May 2022
Last updated: 31 July 2025

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Journal articles on the topic "Degree of disturbance"

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Farmer, Warren J., and Arnold J. Rix. "The Network Topology Metrics Contributing to Local-Area Frequency Stability in Power System Networks." Energies 14, no. 15 (2021): 4643. http://dx.doi.org/10.3390/en14154643.

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The power system network topology influences the system frequency response to power imbalance disturbances. Here, the objective is to find the network metric(s) contributing to frequency transient stability. The graph Laplacians of six 4-node network topologies are analysed using Spectral Graph Theory. For homogeneous network connections, we show that the node degree measure indicates node robustness. Based on these analytical results, the investigation expands to a 10-node network topology consisting of two clusters, which provide further insight into the spectral results. The research then i
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Sukkarnkha, Pisit, and Chanin Panjapornpon. "Two-degree-of-freedom Controller Design for Uncertain Processes Using Input/output Linearization Control Technique." ASEAN Journal of Chemical Engineering 11, no. 1 (2011): 16. http://dx.doi.org/10.22146/ajche.50039.

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In this work, a new control method for uncertain processes is developed based on two-degree-of-freedom control structure. The setpoint tracking controller designed by input/output linearization technique is used to regulate the disturbance-free output and the disturbance rejection controller designed is designed by high-gain technique. The advantage of two-degree-of-freedom control structure is that setpoint tracking and load disturbance rejection controllers can be designed separately. Open-loop observer is applied to provide disturbance-free response for setpoint tracking controller. The pro
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Wen, Jian-Ping, Bing-Gang Cao, and Jun-Yi Cao. "Robust ESO Two-Degree-of-Freedom Control Design for Permanent Magnet Synchronous Motor." Mathematical Problems in Engineering 2010 (2010): 1–10. http://dx.doi.org/10.1155/2010/405251.

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A robust two-degree-of-freedom control scheme is proposed for permanent magnet synchronous motor (PMSM) using extended state observer (ESO). The robustness is achieved based on the ESO. Parameter perturbation and external disturbances in PMSM drive system are treated as disturbance variable, and then the motion model of PMSM is transformed into an extended state model by introducing this disturbance variable. To estimate the disturbance variable, an ESO is constructed. Estimator is compensated into the control system to improve robustness and adaptability of 2DOF controller against parameter p
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Altun, Yusuf. "The road disturbance attenuation for quarter car active suspension system via a new static two-degree-of-freedom design." An International Journal of Optimization and Control: Theories & Applications (IJOCTA) 7, no. 2 (2017): 142–48. http://dx.doi.org/10.11121/ijocta.01.2017.00458.

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The main aim of this paper is to attenuate the effects of the road disturbance on the quarter-car active suspension system (ASS) for the passenger comfort by using design. Therefore, a new static disturbance compensator is proposed by using linear matrix inequality method such that the disturbance compensator and feedback controller are simultaneously designed for the disturbances in the linear time-invariant systems, which are measurable or predictable. They have static structure, and the disturbance compensator is designed on the feedforward path. The design is applied against the road distu
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Liu, Yong, Hugan Zhang, and Xianku Zhang. "Trajectory Tracking Control of Unmanned Underwater Vehicle Based on Projected Perpendicular Guidance Method with Disturbance Observer." Journal of Marine Science and Engineering 12, no. 6 (2024): 901. http://dx.doi.org/10.3390/jmse12060901.

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Unmanned underwater vehicles (UUVs) possess impressive maneuverability and versatility, but controlling them during trajectory tracking can be challenging due to their susceptibility to external disturbances and perturbations in their model parameters. Additionally, the UUV has four degrees of freedom underwater, but only three control inputs, making it a typical underactuated system. To address these issues, this paper introduces a novel optimize sliding mode control (OPSMC) algorithm grounded in projected perpendicular guidance (PPG). The PPG algorithm transforms the three-degree-of-freedom
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Tang, Y., and R. G. Boutilier. "Correlation between catecholamine release and degree of acidotic stress in trout." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 255, no. 3 (1988): R395—R399. http://dx.doi.org/10.1152/ajpregu.1988.255.3.r395.

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Exhaustive exercise in freshwater (FW) and seawater (SW) rainbow trout resulted in a marked and acute increase of plasma catecholamines. Immediately after exercise, epinephrine and norepinephrine concentrations in FW trout were 69 and 15 times the resting level, respectively; in SW trout, they were 46 and 11 times the resting value, respectively. Over the 1st h of recovery, the magnitude of the catecholamine surge in FW animals was about twice that of their SW counterparts. Correlated with this was an extracellular pH disturbance in FW trout, which was approximately twice as severe as in SW tr
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Shi-Yao, Zhu, Li Dong-Xu, and Lei Yong-Jun. "Multi-degree-of-freedom vibration reduction strategy of the solar array drive system." Advances in Mechanical Engineering 13, no. 5 (2021): 168781402110154. http://dx.doi.org/10.1177/16878140211015475.

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The operation disturbance induced by the solar array drive system (SADS) and the residual vibration of solar array following the attitude adjustment of the spacecraft obviously affect the dynamics environment, quick stabilization, and attitude stability of the high-precision spacecraft. However, these two kinds of vibration disturbance are characterized by distinct vibration categories, direction of vibration, and modal shapes. A multi-degree-of-freedom vibration reduction strategy (VRS) was presented to improve the dynamic characteristics of SADS and then to weaken these disturbances syntheti
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Huang, Hong Cheng, Yi Zhang, and Heng Deng. "Disturbance Observer in Robust DC Motor Control." Applied Mechanics and Materials 614 (September 2014): 219–23. http://dx.doi.org/10.4028/www.scientific.net/amm.614.219.

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The disturbance observer is a specific method of designing a two degree of freedom control structure to achieve insensitivity to modeling error and disturbance rejection. It has been successfully applied in a variety of motion control applications. In motion control, the major sources of uncertainties are friction, inertia, and external disturbances. These uncertainties should be taken into account by any robust motion controller. In this paper, this element is a PD (proportional-derivative) controller. The disturbance observer proves its advantages through the simulation and experiments. With
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Melkumyan, Karine, Darshan Shingala, Syuzanna Simonyan, et al. "Assessment of Smell and Taste Disturbances among COVID-19 Convalescent Patients: A Cross-Sectional Study in Armenia." Journal of Clinical Medicine 11, no. 12 (2022): 3313. http://dx.doi.org/10.3390/jcm11123313.

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Background and Objectives: Neurological manifestations of Coronavirus Disease 2019 (COVID-19) such as olfactory and gustatory disturbance have been reported among convalescent COVID-19 patients. However, scientific data on the prevalence of smell and taste disturbance are lacking. Therefore, we present findings on the degree of smell and taste disturbances among the Armenian population. Methods: Study participants were randomly recruited and then categorized into two groups based on their course of the disease. A cross-sectional study was performed to assess participants’ sensitivity to smell
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Jing, Yutao, Xianghe Wang, Juan Heredia-Juesas, et al. "PX4 Simulation Results of a Quadcopter with a Disturbance-Observer-Based and PSO-Optimized Sliding Mode Surface Controller." Drones 6, no. 9 (2022): 261. http://dx.doi.org/10.3390/drones6090261.

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This work designed a disturbance-observer-based nonlinear sliding mode surface controller (SMC) and validated the controller using a simulated PX4-conducted quadcopter. To achieve this goal, this research (1) developed a dynamic mathematical model; (2) built a PX4-based simulated UAV following the model-based design process; (3) developed appropriate sliding mode control laws for each degree of freedom; (4) implemented disturbance observers on the proposed SMC controller to achieve finer disturbance rejection such as crosswind effect and other mutational disturbances; (5) optimized the SMC con
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Dissertations / Theses on the topic "Degree of disturbance"

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Polston, James D. "DECENTRALIZED ADAPTIVE CONTROL FOR UNCERTAIN LINEAR SYSTEMS: TECHNIQUES WITH LOCAL FULL-STATE FEEDBACK OR LOCAL RELATIVE-DEGREE-ONE OUTPUT FEEDBACK." UKnowledge, 2013. http://uknowledge.uky.edu/me_etds/24.

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This thesis presents decentralized model reference adaptive control techniques for systems with full-state feedback and systems with output feedback. The controllers are strictly decentralized, that is, each local controller uses feedback from only local subsystems and no information is shared between local controllers. The full-state feedback decentralized controller is effective for multi-input systems, where the dynamics matrix and control-input matrix are unknown. The decentralized controller achieves asymptotic stabilization and command following in the presence of sinusoidal disturbances
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Ібрагім, М. Аліяс Насер, М. Алияс Насер Ибрагим та M. Aliias Naser Ibrahim. "Оцінка техногенного впливу на навколишнє середовище Іраку". Thesis, Вид-во СумДУ, 2013. http://essuir.sumdu.edu.ua/handle/123456789/31848.

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Дисертаційна робота присвячена вирішенню актуального завдання у галузі екологічної безпеки - оцінці зміни стану природних комплексів в результаті проведення воєнних дій та розробці заходів по відновленню порушених земель та поліпшенню стану водних ресурсів країни. Вивчення стану природних комплексів проводилось на 30 експериментальних майданчиках та дозволило скласти карту-схему, яка відбиває просторову диференціацію території за ступенем порушеності. Дослідження фізичних та хімічних властивостей ґрунтів на порушених територіях показало значну зміну щільності по висоті розрізів, перемішування
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Zarikian, Garo. "Harmonic disturbance rejection in feedback linearization control of a two degrees of freedom helicopter." The Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=osu1413476261.

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Shearin, Amanda F. "Cover Cropping and Soil Disturbance Impacts on the Invertebrate Weed Seed Predator Harpalus rufipes DeGeer (Coleoptera: Carabidae)." Fogler Library, University of Maine, 2005. http://www.library.umaine.edu/theses/pdf/ShearinAF2005.pdf.

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Anske, Ute. "Chronopsychobiologische Pilotstudie zur objektiven Bestimmung funktioneller Gesundheitszustände." Doctoral thesis, Humboldt-Universität zu Berlin, Medizinische Fakultät - Universitätsklinikum Charité, 2003. http://dx.doi.org/10.18452/14965.

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1. Unterschiedliche Definitionen der Gesundheit mit verschiedenen Betrachtungsweisen (WHO: Der Mensch eine biopsychosoziale Einheit. Schulmedizin: ohne klinischen und paraklinischen Befund mit Orientierung an kritikbedürftigen Referenzmittelwerten) führt bei Fachleuten, Behörden und Laien zu Verwirrungen, wenn es um die Beurteilung gesundheitlicher Schäden geht. 2. Es wurde die Aufgabe gestellt zu prüfen, welche der beiden Definitionen der Realität näher kommt. 3. Mittels der chronopsychobiologischen Regulationsdiagnostik, des Dreiphasenentspannungstests (Hecht und Balzer 2001), wurden unter
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Chen, Yong-Sheng, and 陳詠升. "Active Control of Multi-Degree-of-Freedom Vibrating System with Time-Varying Uncertainties and Unknown Persistent Disturbance." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/02184718374579007375.

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碩士<br>國立高雄應用科技大學<br>機械與精密工程研究所<br>93<br>This thesis presents a robust disturbance attenuation method for a class of multi-degree-of-freedom systems with time-varying uncertainties and unknown persistent excitation. The control input is divided into two parts: one is obtained from the optimal LQ method or Genetic Algorithm that is responsible for primary stabilization, the other is derived from the minimum norm solution to attenuate the effect of the persistent disturbance. The states of controlled dynamics and unknown disturbance are estimated by a Waites Estimator in which the estimate gain m
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WANG, PO-YU, and 王柏棛. "The Influence of Competitive Behavior of Taiwan 's Automobile Industry on Performance - The Degree of Market Orientation as the Disturbance Variable." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/qgp223.

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碩士<br>中國文化大學<br>國際企業管理學系<br>105<br>In the past ten years, the dynamic competitive theory has become a great part of strategy area. Therefore, my research`s main subject is using the point of awareness, motivation and capability which belong to dynamic competitive theory and focus on the action level. The research has distinguished competitive action for two type, “tactical action” and “strategic action”, and study the difference of action initiative whether have a positive correlation effect between performance and competitive action type, and add market orientation as the factor which will ef
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Greenwood, Michelle. "The population dynamics of a riparian spider : interactive effects of flow-related disturbance on cross-ecosystem subsidies and spider habitat : a thesis submitted for the degree of Doctor of Philosophy in Ecology in the University of Canterbury /." 2007. http://library.canterbury.ac.nz/etd/adt-NZCU20080109.160603.

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HANOUSKOVÁ, Miloslava. "Metody a přístupy v prevenci rizikových činitelů na prvním stupni základních škol." Master's thesis, 2007. http://www.nusl.cz/ntk/nusl-46448.

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V teoretické části diplomové práce jsem se zabývala rizikovými faktory, které mohou přecházet v poruchy chování u dětí v období školní docházky. Dále jsem zpracovala metodiku, která je s touto problematikou spjatá a uvedla možnosti přístupů, které lze v preventivních aktivitách využít. Nejedná se pouze o aktivity směřující k dětem a mládeži, ale i o přístupy směrem k pedagogům, rodičům a široké veřejnosti. Snažila jsem se vždy zdůraznit to, co je pro školní prostředí nejúčinnější. Nechybí ani názorné příklady.
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Books on the topic "Degree of disturbance"

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Okun, Michele L. Sleep and pregnancy. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198778240.003.0013.

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Pregnant women experience a greater degree of sleep disturbance than their non-pregnant counterparts. Complaints range from sleep maintenance issues to excessive daytime sleepiness. Emerging evidence suggests that there is variability in sleep patterns and complaints which manifest differently among pregnant women. Moreover, it is well accepted that sleep disturbance can dysregulate normal immune and endocrine processes that are critically important to the health and progression of gestation. A possible consequence of sleep disturbance is an increased risk for adverse pregnancy outcomes. Then
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Fink, John K. Upper Motor Neuron Disorders. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199937837.003.0031.

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Symptomatic disturbance of corticospinal and corticobulbar tracts (collectively, the upper motor neuron UMN) occurs in innumerable acquired central nervous system disorders including the consequences of trauma, hypoxia-ischemia, inflammation (e.g. multiple sclerosis), toxins (e.g. thiocyanate1 and specific organophosphorus compound toxicity2) and deficiencies (e.g. hypocupremia3 and vitamin B12 deficiency). Variable degrees of UMN disturbance frequently accompany degenerative disorders in which disturbance of another neurologic system results in the primary clinical. Neuropathologic studies ha
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Rajappan, Kim. Bradyarrhythmias. Edited by Patrick Davey and David Sprigings. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199568741.003.0119.

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A bradyarrhythmia is defined as a rhythm disturbance that results in a heart rate of less than 60 bpm. It is important to note that many healthy people have a resting heart rate that is less than 60 bpm, most commonly due to sinus bradycardia (i.e. a rhythm arising from the sinus node but with a ventricular rate less than 60 bpm). Other forms of bradyarrhythmia are sinus node disease, sick sinus syndrome, first-degree atrioventricular (AV) block, second-degree AV block (which can be characterized as Möbitz type I (Wenckebach phenomenon) or Möbitz type II), and third-degree AV block (also known
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Lavalle, Carlo, Renato Pietro Ricci, and Massimo Santini. Conduction disturbances and pacemaker. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199687039.003.0055.

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The most frequent clinical conditions complicated by bradyarrhythmias or atrioventricular blocks seen in an emergency setting are the degeneration of the conduction system, acute myocardial infarction, drug toxicity, and hyperkalaemia. Pacemaker malfunction is another cause of potentially life-threatening bradyarrhythmias. The presence of signs/symptoms of hypoperfusion and the localization of the block condition the therapeutic approach. Treatment of bradyarrhythmias and atrioventricular block in a critical care setting may be preventative or therapeutic. A preventative approach is necessary
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Kulak, Dariusz. Wieloaspektowa metoda oceny stanu gleb leśnych po przeprowadzeniu procesów pozyskania drewna. Publishing House of the University of Agriculture in Krakow, 2017. http://dx.doi.org/10.15576/978-83-66602-28-1.

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Presented reasearch aimed to develop and analyse the suitability of the CART models for prediction of the extent and probability of occurrence of damage to outer soil layers caused by timber harvesting performed under varied conditions. Having employed these models, the author identified certain methods of logging works and conditions, under which they should be performed to minimise the risk of damaging forest soils. The analyses presented in this work covered the condition of soils upon completion of logging works, which was investigated in 48 stands located in central and south-eastern Pola
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Karatasakis, G., and G. D. Athanassopoulos. Cardiomyopathies. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199599639.003.0019.

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Echocardiography is a key diagnostic method in the management of patients with cardiomyopathies.The main echocardiographic findings of hypertrophic cardiomyopathy are asymmetric hypertrophy of the septum, increased echogenicity of the myocardium, systolic anterior motion, turbulent left ventricular (LV) outflow tract blood flow, intracavitary gradient of dynamic nature, mid-systolic closure of the aortic valve and mitral regurgitation. The degree of hypertrophy and the magnitude of the obstruction have prognostic meaning. Echocardiography plays a fundamental role not only in diagnostic process
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Soleta, Amy, and Joelle Karlik. Goldenhar Syndrome. Edited by Kirk Lalwani, Ira Todd Cohen, Ellen Y. Choi, and Vidya T. Raman. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190685157.003.0058.

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Goldenhar syndrome (also known as oculo-auriculo-vertebral spectrum, facio-auriculo-vertebral syndrome, and Goldenhar-Gorlin syndrome) is caused by fetal growth disturbances of the first two brachial clefts. Diagnostic criteria include eye, ear, mandibular, and/or vertebral anomalies. These patients may also have cardiac and renal malformations with varying degrees of severity. Airway management for Goldenhar patients may include difficult ventilation and intubation, which may become increasingly difficult with age. Vertebral anomalies including fused cervical vertebrae and/or cervical instabi
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Izaute, Marie, and Elizabeth Bacon. Metamemory in Psychopathology. Edited by John Dunlosky and Sarah (Uma) K. Tauber. Oxford University Press, 2015. http://dx.doi.org/10.1093/oxfordhb/9780199336746.013.20.

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This chapter explores the degree to which various psychopathologies influence metamemory. The literature suggests such patients suffer different impairment patterns rather than global, nonspecific impairments of metamemory processes and the memory-metamemory relationships: Depressed patients present memory and metamemory difficulties; obsessive-compulsive patients appear to suffer from metamemory impairments rather than memory disturbances. ADHD patients suffer more from control process impairments than from monitoring deficits. Patients with autism present metamemory and memory difficulties t
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Lozsadi, Dora A. Sleep and epilepsy—chicken or egg? Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198778240.003.0011.

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Epilepsy is the commonest serious chronic neurological condition, affecting 0.5% of the population in the UK. Subjective sleep disturbance and excessive daytime sleepiness are reported to be 50% more frequent in those with epilepsy than in controls. Causes are multiple. Both poor seizure control and nocturnal attacks are known to contribute to such sleep disorders. Epilepsy also increases the risk of associated sleep disorders, and additional neurological conditions, such as dementia, learning disability, and depression. These all affect sleep hygiene. Prescribed anti-epileptic drugs will furt
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Book chapters on the topic "Degree of disturbance"

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Gamon, John A., Ran Wang, Hamed Gholizadeh, Brian Zutta, Phil A. Townsend, and Jeannine Cavender-Bares. "Consideration of Scale in Remote Sensing of Biodiversity." In Remote Sensing of Plant Biodiversity. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-33157-3_16.

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AbstractA coherent and effective remote sensing (RS) contribution to biodiversity monitoring requires careful consideration of scale in all its dimensions, including spatial, temporal, spectral, and angular, along with biodiversity at different levels of biological organization. Recent studies of the relationship between optical diversity (spectral diversity) and biodiversity reveal a scale dependence that can be influenced by the RS methods used, vegetation type, and degree and nature of disturbance. To better understand these issues, we call for multi-scale field campaigns that test the effe
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Olga, Malinnikova, Malinnikov Vasiliy, Uchaev Denis, and Uchaev Dmitry. "Multifractal Interpretation of Images of Coal Specimen Surfaces to Assess the Degree of Coal Tectonic Disturbance." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92144-6_42.

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de Almeida, Eduardo Robatto Plessim, Lucival Silva Santos, and Igor Lima Maldonado. "Dysgraphia Following the Resection of a Left Parietal Glioma." In Acta Neurochirurgica Supplement. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-61601-3_13.

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AbstractWe report herein the case of a 41-year-old man operated on for a small inferior parietal lobule ganglioglioma with a sleep-awake-sleep protocol and language mapping to avoid major speech disorders. Postoperatively, however, writing disturbance was characterized by persistent graphemic errors that lasted for about 8 months. The topic is discussed in light of recent literature, exploring the possible relationship between writing difficulties and disconnections produced by a combination of resecting supramarginal gyrus components and interrupting arcuate fasciculus fibers. Awake mapping o
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Hsu, Liu, Eduardo V. L. Nunes, Tiago Roux Oliveira, and Alessandro Jacoud Peixoto. "Global Multivariable Hybrid Estimator for Nonuniform Relative Degree Systems with Uncertainties and Disturbances." In Recent Advances in Sliding Modes: From Control to Intelligent Mechatronics. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-18290-2_10.

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Goss, W. M., Claire Hooker, and Ronald D. Ekers. "To the Cavendish Laboratory of the University of Cambridge, 1931." In Historical & Cultural Astronomy. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-07916-0_6.

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AbstractFrom the 1851 Exhibition Scholarship Committee to Pawsey on 1 October 1931:Pawsey started out in research in the midst of excitement over the possibilities of radio communications and the iteratively developing physical understanding of the ionosphere and of the equipment that might be used to investigate it. During 1926–28 he completed his BSc at the University of Melbourne, Victoria. In 1929 he began a Master’s Degree, which was at that time a research-only degree, under the direction of Professor T.H. Laby. He was supported by receiving the M.J. Bartlett Research Scholarship. Presum
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Al-Awadhi, Jasem Mohammed, Abd el-aziz Khairy Abd el-aal, Raafat Misak, and Ahmed Abdulhadi. "Geo- and Environmental Hazard Studies in Kuwait." In The Geology of Kuwait. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-16727-0_8.

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AbstractLow magnitude Earthquakes are the most natural hazard facing Kuwait, while other environmental challenges such as flooding, dust fallout, land degradation, and aeolian sand movement often arise from human impact as well as natural factors. Because of the rapid socio-economic development in the last five decades in Kuwait, these issues cause environmental and social problems as well as economic disturbance; they are also considered natural disasters for country. The scale and intensity of the geological environment hazards are considerably increasing especially land degradation, and imp
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Peng, Minggang, and Jinjin Sun. "Neural Network Prediction of Dynamic Characteristics of Soft Soil Disturbance." In Modern Management Based on Big Data IV. IOS Press, 2023. http://dx.doi.org/10.3233/faia230211.

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In recent years, many large-scale projects have been built on thick soft soil foundations. Due to insufficient understanding of the engineering properties of soft soil, many major engineering accidents have occurred. Based on the intersection project of Nangangdao Bridge and subway tunnel in Fuzhou, in order to study the disturbance degree of pile foundation construction to surrounding soil under the influence of multi factor coupling, direct shear test under different disturbance factors (vertical pressure, consolidation time, shear rate, disturbance degree) were carried out on soft soil in F
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Wohl, Ellen, Anna Marshall, Julianne Scamardo, and Sara Rathburn. "Biogeomorphic processes, spatial heterogeneity, and river corridor resilience to stand-killing wildfire." In Biogeomorphic Responses to Wildfire in Fluvial Ecosystems. Geological Society of America, 2024. http://dx.doi.org/10.1130/2024.2562(08).

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ABSTRACT We used field-based case studies to examine how spatial heterogeneity influences the response of river corridors to changes in water and sediment fluxes after wildfire. Spatial heterogeneity describes the degree to which a river corridor differs from a spatially uniform feature. Biogeomorphic processes, especially those that involve beaver (Castor canadensis) dams and large wood in the channel and floodplain, both influence and respond to spatial heterogeneity. These feedbacks can in turn strongly influence the degree to which a river corridor is resistant, resilient, or sensitive (RR
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Lutenegger Alan J. and Tsuha Cristina de H.C. "Evaluating Installation Disturbance from Helical Piles and Anchors Using Compression and Tension Tests." In From Fundamentals to Applications in Geotechnics. IOS Press, 2015. https://doi.org/10.3233/978-1-61499-603-3-373.

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Screw-Piles and Helical Anchors have been in use throughout the world to support a variety of structures for the past 180 years and have seen a dramatic increase in use during the past 20 years. One of the important issues that must be considered in design is the degree of disturbance to the soil during installation. This may be especially important for tension applications in saturated fine-grained soils where the disturbance from installation may produce a reduction of the undrained shear strength and in structured soils where the installation produces a breakdown in the natural soil structu
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"Fish Habitat: Essential Fish Habitat and Rehabilitation." In Fish Habitat: Essential Fish Habitat and Rehabilitation, edited by Joseph DeAlteris, Laura Skrobe, and Christine Lipsky. American Fisheries Society, 1999. http://dx.doi.org/10.47886/9781888569124.ch16.

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&lt;em&gt;Abstract.&lt;/em&gt; —Seabed disturbance by mobile bottom-fishing gear has emerged as a major concern related to the conservation of essential fish habitat. Unquestionably, dredges and trawls disturb the seabed. However, the seabed is also disturbed by natural physical and biological processes. The biological communities that utilize a particular habitat have adapted to that environment through natural selection, and, therefore, the impact of mobile fishing gear on the habitat structure and biological community must be scaled against the magnitude and frequency of seabed disturbance
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Conference papers on the topic "Degree of disturbance"

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Omi, Yusuke, Takumi Yasuda, Hiroki Watanabe, and Jun-ichi Itoh. "Vibration Suppression Method Using Disturbance Observer in Sensorless 120-Degree Conduction Compressor Motor Drive." In 2024 27th International Conference on Electrical Machines and Systems (ICEMS). IEEE, 2024. https://doi.org/10.23919/icems60997.2024.10921180.

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Zinage, Vrushabh, Rohan Chandra, and Efstathios Bakolas. "Disturbance Observer-Based Robust Integral Control Barrier Functions for Nonlinear Systems with High Relative Degree." In 2024 American Control Conference (ACC). IEEE, 2024. http://dx.doi.org/10.23919/acc60939.2024.10644578.

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Bai, Duanyuan, Yingjie Shi, Tingyi Wu, Yongheng Zhang, Qiyue Yuan, and Ruize Li. "Improved active disturbance rejection control-based research on trajectory tracking for multi-degree-of-freedom manipulators." In Fourth International Conference on Testing Technology and Automation Engineering (TTAE 2024), edited by Sumeet S. Aphale and Ajit Jha. SPIE, 2024. https://doi.org/10.1117/12.3055347.

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Diab, Mohammad, Paolo Mercorelli, and Benedikt Haus. "Impulsive Feedback Linearization for Decoupling of a Constant Disturbance with Low Relative Degree to Control Maglev Systems." In 2024 28th International Conference on System Theory, Control and Computing (ICSTCC). IEEE, 2024. http://dx.doi.org/10.1109/icstcc62912.2024.10744753.

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Wen, Yan, Ziyang Chen, Guoli Li, Qunjing Wang, Qian Zhang, and Lufeng Ju. "Model Predictive Control with Disturbance Compensation for Trajectory Tracking of Three-Degree-of-Freedom Spherical Joint Actuator." In 2024 27th International Conference on Electrical Machines and Systems (ICEMS). IEEE, 2024. https://doi.org/10.23919/icems60997.2024.10921418.

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Hirahara, Hideaki, Kenshiro Kuroki, and Shu Yamamoto. "Simple Design Method of Two-Degree-of-Freedom PID Position Controller Specifying Disturbance Response for Linear Servo Motors." In 2024 27th International Conference on Electrical Machines and Systems (ICEMS). IEEE, 2024. https://doi.org/10.23919/icems60997.2024.10920896.

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Deng, Jiangming, Fen Cao, Siwei Cheng, Wei Xu, and Jian Ge. "Two-Degree-of- Freedom Sensorless Control Method Combining Extended Adaptive Full-Order Observer with Disturbance-Observer Based Controller for Induction Machine Drives." In 2024 6th International Conference on Energy Systems and Electrical Power (ICESEP). IEEE, 2024. http://dx.doi.org/10.1109/icesep62218.2024.10651669.

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Rogers, Jonathan, Zachary Sunberg, and Nate Miller. "A Real Time Expert Control System for Helicopter Autorotation." In Vertical Flight Society 70th Annual Forum & Technology Display. The Vertical Flight Society, 2014. http://dx.doi.org/10.4050/f-0070-2014-9681.

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A control algorithm for autonomous helicopter autorotation is proposed and evaluated. The algorithm consists of a multi-phase control law with fuzzily-defined transitions, and provides outputs in the form of collective commands, desired forward speed, and maximum pitch and roll angle limits. The algorithm is designed to be used in conjunction with an inner loop velocity tracking controller. A unique feature of the proposed control law is its use of estimated time to ground impact to compute near-optimal flare trajectories from a wide range of initial conditions. Performance of the proposed exp
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Edgemon, G. L., J. L. Nelson, and G. E. C. Bell. "Corrosion Data from Hanford High-Level Waste Tank 241-AN-107." In CORROSION 1999. NACE International, 1999. https://doi.org/10.5006/c1999-99469.

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Abstract In an effort to improve corrosion monitoring and control at the Hanford Site, an eight-channel electrochemical noise (EN) based corrosion monitoring system was designed, fabricated and installed into double-shell tank 241-AN-107 in September 1997. This system is a larger scale version of a prototype system installed in double-shell tank 241-AZ-101 in August 1996 and monitors eight three-electrode channels positioned at different elevations in the tank. The system is capable of detecting the onset of pitting and stress corrosion cracking should tank waste conditions change to allow the
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Wang, Yeqin, Yiting Dong, Jiguo Dai, Beibei Ren, and Qing-Chang Zhong. "Error Dynamics Design via a Repetitive Loop for UDE-Based Robust Control to Reject Periodic Disturbances." In ASME 2020 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/dscc2020-3221.

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Abstract The uncertainty and disturbance estimator (UDE)-based robust control has a two-degree-of-freedom nature through the design of the error dynamics and the design of the UDE filters. In the conventional design to handle periodic disturbances or mixed sinusoidal disturbances, high-order UDE filters incorporated with the internal model principle (IMP) or time-delay filters (TDF) are adopted to achieve the asymptotic reference tracking and the asymptotic disturbance rejection. In this paper, a new error dynamics design combined with a repetitive loop is proposed for the UDE-based robust con
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Reports on the topic "Degree of disturbance"

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Schuurman, Gregor, James Lawler, Joel Reynolds, et al. Climate change adaptation practices and possibilities considered by the National Park Service Alaska Leadership Council in 2019: Summary of an ALC exercise (technical assistance request 10860). National Park Service, 2024. http://dx.doi.org/10.36967/2306300.

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Profound climate change-driven environmental changes observed in Alaska prompted the National Park Service?s Alaska Leadership Council (ALC) to dedicate a half-day of their September 2019 meeting to understanding and addressing key climate change vulnerabilities. The session aimed to introduce participants to the Resist-Accept-Direct (RAD) framework?an emerging framing tool for exploring the ?universe? of potential adaptation actions?and to initiate broader discussion regarding current and potential future adaptation actions in each of Alaska?s national parks. Participating superintendents wer
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Sommer, Stefan, and Andrew W. Dale. Field-experiment to determine the short-term impact of bottom trawling on the benthic ecosystem in the German coastal Baltic Sea - Cruise No. AL616, 18.07. – 09.08.2024, Kiel (Germany) – Kiel (Germany), MGF-OSTSEE-2024. GEOMAR Helmholtz Centre for Ocean Research Kiel, 2025. https://doi.org/10.3289/cr_al616.

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Within the BMBF funded second phase of the DAM project „Ausschluss mobiler grund-berührender Fischerei (MGF) in marinen Schutzgebieten der Ostsee – Phase II (MGF-Ostsee-II)“ an experimental field study has been conducted to determine the effects of bottom trawling on the benthic ecosystem of the German coastal Baltic Sea. An area characterized with low fishing activity was selected in the Mecklenburger Bight ca. 5 km north of the town Kühlungsborn based on geo-acoustic and sedimentological criteria. In a part of this area referred to as High Impact area, high intensity trawling was simulated b
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Leis, Sherry, and Lloyd Morrison. Plant community trends at Tallgrass Prairie National Preserve: 1998–2018. National Park Service, 2022. http://dx.doi.org/10.36967/2294512.

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The Heartland Inventory and Monitoring Network monitors plant communities at Tallgrass Prairie National Preserve and evaluates a variety of environmental variables that affect vegetation patterns, including climate and ecological disturbances such as fire and grazing. Here we report on 2002–2018 trends in management actions (fire and grazing) and key plant community indicators. Temperature has increased over the past 50 years in the region. Precipitation and a standardized precipitation-evapotranspiration index included a high degree of interannual variability and did not demonstrate directional
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Shahverdian, Scott, Derek Schook, Derek Schook, and Scott Shahverdian. Riverscape interpretation in Great Basin National Park: A geomorphic assessment of streams and riparian areas. National Park Service, 2025. https://doi.org/10.36967/2307540.

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Streams can be challenging systems to manage due to their dynamic nature and complex feedbacks between hydrologic, geomorphic, and biological processes that operate over a range of timescales. Stream-riparian ecosystems, also known as riverscapes or river corridors, are affected by events ranging from single storms to large-scale landscape disturbances such as wildfires and landslides. Understanding riverscape dynamics is necessary for identifying potential causes of their degradation, appropriate management actions, and potential restoration strategies. Developing appropriate expectations req
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Boyle, M. Terrestrial vegetation monitoring at Ocmulgee Mounds National Historical Park: 2021 data summary. National Park Service, 2023. http://dx.doi.org/10.36967/2299748.

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The Southeast Coast Network (SECN) conducts long-term terrestrial vegetation monitoring as part of the NPS Inventory and Monitoring Program. The vegetation community vital sign is one of the primary-tier resources identified by SECN park managers, and monitoring is conducted at 15 network parks (DeVivo et al. 2008). Monitoring plants and their associated communities over time allows for targeted understanding of ecosystems within the SECN geography, which provides managers information about the degree of change within their parks’ natural vegetation. 2021 marks the first year of conducting thi
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Boyle, Maxwell, and Elizabeth Rico. Terrestrial vegetation monitoring at Fort Pulaski National Monument: 2019 data summary. National Park Service, 2021. http://dx.doi.org/10.36967/nrds-2288716.

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The Southeast Coast Network (SECN) conducts long-term terrestrial vegetation monitoring as part of the nationwide Inventory and Monitoring Program of the National Park Service (NPS). The vegetation community vital sign is one of the primary-tier resources identified by SECN park managers, and monitoring is currently conducted at 15 network parks (DeVivo et al. 2008). Monitoring plants and their associated communities over time allows for targeted understanding of ecosystems within the SECN geography, which provides managers information about the degree of change within their parks’ natural veg
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Boyle, Maxwell, and Elizabeth Rico. Terrestrial vegetation monitoring at Cape Hatteras National Seashore: 2019 data summary. National Park Service, 2022. http://dx.doi.org/10.36967/nrr-2290019.

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The Southeast Coast Network (SECN) conducts long-term terrestrial vegetation monitoring as part of the nationwide Inventory and Monitoring Program of the National Park Service (NPS). The vegetation community vital sign is one of the primary-tier resources identified by SECN park managers, and monitoring is currently conducted at 15 network parks (DeVivo et al. 2008). Monitoring plants and their associated communities over time allows for targeted understanding of ecosystems within the SECN geography, which provides managers information about the degree of change within their parks’ natural veg
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Boyle, Maxwell, and Elizabeth Rico. Terrestrial vegetation monitoring at Timucuan Ecological and Historic Preserve: 2019 data summary—Version 2.0. National Park Service, 2022. http://dx.doi.org/10.36967/nrds-2290196.

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The Southeast Coast Network (SECN) conducts long-term terrestrial vegetation monitoring as part of the nationwide Inventory and Monitoring Program of the National Park Service (NPS). The vegetation community vital sign is one of the primary-tier resources identified by SECN park managers, and it is currently conducted on 15 network parks (DeVivo et al. 2008). Monitoring plants and their associated communities over time allows for targeted understanding of ecosystems within the SECN geography, which provides managers information about the degree of change within their parks’ natural vegetation.
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Boyle, M., and Elizabeth Rico. Terrestrial vegetation monitoring at Fort Matanzas National Monument: 2019 data summary. National Park Service, 2022. http://dx.doi.org/10.36967/nrds-2293409.

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The Southeast Coast Network (SECN) conducts long-term terrestrial vegetation monitoring as part of the nationwide Inventory and Monitoring Program of the National Park Service (NPS). The vegetation community vital sign is one of the primary-tier resources identified by SECN park managers, and it is currently conducted at 15 network parks (DeVivo et al. 2008). Monitoring plants and their associated communities over time allows for targeted understanding of ecosystems within the SECN geography, which provides managers information about the degree of change within their parks’ natural vegetation.
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Boyle, M., and Elizabeth Rico. Terrestrial vegetation monitoring at Cumberland Island National Seashore: 2020 data summary. National Park Service, 2022. http://dx.doi.org/10.36967/2294287.

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The Southeast Coast Network (SECN) conducts long-term terrestrial vegetation monitoring as part of the nationwide Inventory and Monitoring Program of the National Park Service (NPS). The vegetation community vital sign is one of the primary-tier resources identified by SECN park managers, and it is currently conducted at 15 network parks (DeVivo et al. 2008). Monitoring plants and their associated communities over time allows for targeted understanding of ecosystems within the SECN geography, which provides managers information about the degree of change within their parks’ natural vegetation.
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