Bibliografías temáticas / Restoration feedback

Literatura académica sobre el tema "Restoration feedback"

Autor: Grafiati

Publicado: 13 de abril de 2024

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Artículos de revistas sobre el tema "Restoration feedback"

Yamazaki, T., M. J. Brunner y K. Sagawa. "Pulsatile vs. mean component of baroreflex compensation for posthemorrhage hypotension". American Journal of Physiology-Heart and Circulatory Physiology 254, n.º 6 (1 de junio de 1988): H1074—H1080. http://dx.doi.org/10.1152/ajpheart.1988.254.6.h1074.

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We studied the influence of pulsatile pressure and mean arterial pressure signals on the restoration of arterial pressure after 10% hemorrhage in seven anesthetized dogs. After transection of the aortic nerve, a quick 10% hemorrhage was repeated under four different sinus conditions: condition 1, carotid sinus pressure depulsated and fixed at a level equal to the prehemorrhage level (no feedback); condition 2, pulsatile component of aortic pressure fed back to the carotid sinus with a fixed mean pressure (pulsatile feedback); condition 3, depulsated mean aortic pressure fed back (mean pressure feedback); condition 4, both pulsatile and mean pressure fed back (pulsatile plus mean component feedback). The restoration of arterial pressure in condition 2 was not significantly different from that in condition 1, but there was greater restoration in conditions 3 and 4. At 1.5 min posthemorrhage, the open-loop gains calculated from the restoration values were nearly zero for the pulsatile feedback only, 2.8 +/- 0.8 for mean arterial pressure feedback, and 1.5 +/- 0.3 for pulsatile and mean pressure feedback. These results indicate that the pulsatile component of the carotid baroreflex contributes minimally to the restoration of arterial pressure after 10% hemorrhage in the anesthetized dog.

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Turetsky, Vladimir. "Two Inverse Problems Solution by Feedback Tracking Control". Axioms 10, n.º 3 (28 de junio de 2021): 137. http://dx.doi.org/10.3390/axioms10030137.

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Two inverse ill-posed problems are considered. The first problem is an input restoration of a linear system. The second one is a restoration of time-dependent coefficients of a linear ordinary differential equation. Both problems are reformulated as auxiliary optimal control problems with regularizing cost functional. For the coefficients restoration problem, two control models are proposed. In the first model, the control coefficients are approximated by the output and the estimates of its derivatives. This model yields an approximating linear-quadratic optimal control problem having a known explicit solution. The derivatives are also obtained as auxiliary linear-quadratic tracking controls. The second control model is accurate and leads to a bilinear-quadratic optimal control problem. The latter is tackled in two ways: by an iterative procedure and by a feedback linearization. Simulation results show that a bilinear model provides more accurate coefficients estimates.

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Kayerova, Elena V., Natalya S. Zhuravskaya, Ekaterina A. Kozina y Olga V. Shakirova. "Restoration of Upper Limb Motor Function After Stroke". Bulletin of Rehabilitation Medicine 20, n.º 1 (26 de febrero de 2021): 21–26. http://dx.doi.org/10.38025/2078-1962-2021-20-1-21-26.

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Since the task of eliminating the consequences of a stroke remains unsolved, research on the use of robotic simulators equipped with feedback to restore upper limb motor functions is of particular relevance. Aim of the study was to conduct an experimental evaluation of the effectiveness of the use of the Anika sensory glove with biological feedback for the restoration of upper extremity motor function in the early period of ischemic stroke. Materials and methods. We analyzed 108 medical histories and selected 28 patients with a single history of stroke and moderate cognitive disorders, which were divided into 2 groups - control and experimental with 14 individuals each. Patients of the control group engaged in therapeutic physical culture according to the traditional methodology adopted in neurological practice and aimed at restoring muscle strength, passive and active movements of the upper extremity. Trainings using the sensory glove Anika with biological feedback were included in the therapeutic physical culture training program for the experimental group. Results. The inclusion of special exercises on the Anika simulator with biological feedback in a comprehensive physical rehabilitation program increases the effectiveness of the recovery process, contributing to improving articular mobility, reducing spasticity, increasing muscle strength of the hand, reducing the level of personal and situational anxiety, normalizing psychoemotional state and increasing the functional mobility of stroke patients. Conclusion. The use of the sensory glove Anika with biological feedback in the early recovery period contributed to the expansion of the motor activity of patients, the development of self-care skills, psychological and social adaptation.

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Wan, Jia, Kaihao Zhang, Hongdong Li y Antoni B. Chan. "Angular-Driven Feedback Restoration Networks for Imperfect Sketch Recognition". IEEE Transactions on Image Processing 30 (2021): 5085–95. http://dx.doi.org/10.1109/tip.2021.3071711.

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Guo, Zhenyu, Yujuan Sun, Muwei Jian y Xiaofeng Zhang. "Deep Residual Network with Sparse Feedback for Image Restoration". Applied Sciences 8, n.º 12 (28 de noviembre de 2018): 2417. http://dx.doi.org/10.3390/app8122417.

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A deep neural network is difficult to train due to a large number of unknown parameters. To increase trainable performance, we present a moderate depth residual network for the restoration of motion blurring and noisy images. The proposed network has only 10 layers, and the sparse feedbacks are added in the middle and the last layers, which are called FbResNet. FbResNet has fast convergence speed and effective denoising performance. In addition, it can also reduce the artificial Mosaic trace at the seam of patches, and visually pleasant output results can be produced from the blurred images or noisy images. Experimental results show the effectiveness of our designed model and method.

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Chen, Yang, Yan Cheng Liu y Chuan Wang. "Feedback Particle Swarm Optimization for Shipboard Power System Restoration". Advanced Materials Research 1070-1072 (diciembre de 2014): 1902–5. http://dx.doi.org/10.4028/www.scientific.net/amr.1070-1072.1902.

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The fast network restoration is required to restore the Shipboard power system (SPS) to near pre-fault condition for proper functioning. This paper proposed an improved Particle Swarm Optimization for restoration of shipboard power system. Firstly, we proposed an improvement strategy of S-Curve Decreasing Inertia Weight. Secondly, the feedback mechanism was introduced to improve the algorithm rate of convergence. Particle swarm optimization algorithm enables to find the optimal combination of loads that can be supplied after the occurrence of the fault, considering the priorities of the loads and the constraint of balance between the total load and total generation. The proposed method is applied to a naval shipboard power system model.

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Morandi, Bertrand, Hervé Piégay, Nicolas Lamouroux y Lise Vaudor. "How is success or failure in river restoration projects evaluated? Feedback from French restoration projects". Journal of Environmental Management 137 (mayo de 2014): 178–88. http://dx.doi.org/10.1016/j.jenvman.2014.02.010.

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Miller, Joseph M., Hugo N. Villegas Pico, Ian Dobson, Andrey Bernstein y Bai Cui. "Feedback control approaches for restoration of power grids from blackouts". Electric Power Systems Research 211 (octubre de 2022): 108414. http://dx.doi.org/10.1016/j.epsr.2022.108414.

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Kandlikar, M. y I. Jacobs. "Analysis of quantized feedback low-frequency restoration in digital regenerators". IEEE Transactions on Communications 38, n.º 8 (1990): 1118–20. http://dx.doi.org/10.1109/26.58740.

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Foerde, Karin y Joanna E. Steinglass. "Decreased feedback learning in anorexia nervosa persists after weight restoration". International Journal of Eating Disorders 50, n.º 4 (abril de 2017): 415–23. http://dx.doi.org/10.1002/eat.22709.

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Tesis sobre el tema "Restoration feedback"

Youmans, Robert J. "The restoration of diluted judgment /". Electronic thesis, 2003. http://etd.wfu.edu/theses/available/etd-05132003-134031/.

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Li, Kairu. "Electrotactile feedback for sensory restoration : modelling and application". Thesis, University of Portsmouth, 2018. https://researchportal.port.ac.uk/portal/en/theses/electrotactile-feedback-for-sensory-restoration(f9107084-dab3-419b-8e79-9aac2e4262b4).html.

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An ideal upper-extremity prosthesis is expected to simultaneously decode users' intentions and deliver artificial somatosensory feedback. Among all the feasible feedback modalities, electrotactile stimulation remains the most promising solution due to its advantages of light weight, little noise and low power consumption. This thesis further enhances the existing electrotactile feedback strategies by proposing a haptics model, developing a portable electrotactile stimulation (ETS) system and establishing a virtual hand rehabilitation platform for implementation and evaluation. Firstly, a Gaussian distribution based haptics model is proposed to characterise the human fingertip's biomechanics, including a prediction model to estimate the contact force according to the fingertip deformation and a probabilistic model to describe force uncertainty. Experiments results reveal the non-linearity, dispersion and individual difference of the fingertip's mechanical behaviour. Secondly, a potable 16-channel ETS system with a wireless mode for transmission is developed to provide electrotactile feedback for clinical use. The proposed ETS system can generate stable current output with programmable stimulation parameters, including amplitude, frequency and pulse width. The ETS output waveforms and stability were evaluated by capability tests. Thirdly, a virtual hand rehabilitation platform is established to investigate the effect of electrotactile feedback on user training of hand grasping tasks. The platform consists of a surface electromyography (sEMG) acquisition module, a virtual grasping environment, and an ETS module. Experiments were conducted to evaluate the impact of electrotactile feedback on a closed-loop grasping control in comparison with the visual feedback and no feedback. The quantitative results show that the integration of electrotactile feedback can both reduce the duration of rehabilitation and improve the virtual grasping success rate in comparison with the no feedback condition while possessing a better practicality over visual feedback. In summary, the proposed electrotactile feedback centred research is validated in facilitating the user training and improving the rehabilitation performance. Despite the initial motivation of this thesis driven by the upper-extremity prostheses, the verified success of electrical stimulation is not confined to the hand rehabilitation scenarios but potentially applicable to a wider spectrum of applications, such as biomedical engineering and virtual reality.

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BISONI, LORENZO. "An implantable micro-system for neural prosthesis control and sensory feedback restoration in amputees". Doctoral thesis, Università degli Studi di Cagliari, 2015. http://hdl.handle.net/11584/266608.

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In this work, the prototype of an electronic bi-directional interface between the Peripheral Nervous System (PNS) and a neuro-controlled hand prosthesis is presented. The system is composed of two Integrated Circuits (ICs): a standard CMOS device for neural recording and a High Voltage (HV) CMOS device for neural stimulation. The integrated circuits have been realized in two different 0.35μm CMOS processes available fromAustriaMicroSystem(AMS). The recoding IC incorporates 8 channels each including the analog front-end and the A/D conversion based on a sigma delta architecture. It has a total area of 16.8mm2 and exhibits an overall power consumption of 27.2mW. The neural stimulation IC is able to provide biphasic current pulses to stimulate 8 electrodes independently. A voltage booster generates a 17V voltage supply in order to guarantee the programmed stimulation current even in case of high impedances at the electrode-tissue interface in the order of tens of k. The stimulation patterns, generated by a 5-bit current DAC, are programmable in terms of amplitude, frequency and pulse width. Due to the huge capacitors of the implemented voltage boosters, the stimulation IC has a wider area of 18.6mm2. In addition, a maximum power consumption of 29mW was measured. Successful in-vivo experiments with rats having a TIME electrode implanted in the sciatic nerve were carried out, showing the capability of recording neural signals in the tens of microvolts, with a global noise of 7μVrms , and to selectively elicit the tibial and plantarmuscles using different active sites of the electrode. In order to get a completely implantable interface, a biocompatible and biostable package was designed. It hosts the developed ICs with the minimal electronics required for their proper operation. The package consists of an alumina tube closed at both extremities by two ceramic caps hermetically sealed on it. Moreover, the two caps serve as substrate for the hermetic feedthroughs to enable the device powering and data exchange with the external digital controller implemented on a Field-Programmable Gate Array (FPGA) board. The package has an outer diameter of 7mm and a total length of 26mm. In addition, a humidity and temperature sensor was also included inside the package to allow future hermeticity and life-time estimation tests. Moreover, a wireless, wearable and non-invasive EEG recording system is proposed in order to improve the control over the artificial limb,by integrating the neural signals recorded from the PNS with those directly acquired from the brain. To first investigate the system requirements, a Component-Off-The-Shelf (COTS) device was designed. It includes a low-power 8- channel acquisition module and a Bluetooth (BT) transceiver to transmit the acquired data to a remote platform. It was designed with the aimof creating a cheap and user-friendly system that can be easily interfaced with the nowadays widely spread smartphones or tablets by means of a mobile-based application. The presented system, validated through in-vivo experiments, allows EEG signals recording at different sample rates and with a maximum bandwidth of 524Hz. It was realized on a 19cm2 custom PCB with a maximum power consumption of 270mW.

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FARES, HODA. "Distributed Sensing and Stimulation Systems Towards Sense of Touch Restoration in Prosthetics". Doctoral thesis, Università degli studi di Genova, 2020. http://hdl.handle.net/11567/998183.

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Modern prostheses aim at restoring the functional and aesthetic characteristics of the lost limb. To foster prosthesis embodiment and functionality, it is necessary to restitute both volitional control and sensory feedback. Contemporary feedback interfaces presented in research use few sensors and stimulation units to feedback at most two discrete feedback variables (e.g. grasping force and aperture), whereas the human sense of touch relies on a distributed network of mechanoreceptors providing high-fidelity spatial information. To provide this type of feedback in prosthetics, it is necessary to sense tactile information from artificial skin placed on the prosthesis and transmit tactile feedback above the amputation in order to map the interaction between the prosthesis and the environment. This thesis proposes the integration of distributed sensing systems (e-skin) to acquire tactile sensation, and non-invasive multichannel electrotactile feedback and virtual reality to deliver high-bandwidth information to the user. Its core focus addresses the development and testing of close-loop sensory feedback human-machine interface, based on the latest distributed sensing and stimulation techniques for restoring the sense of touch in prosthetics. To this end, the thesis is comprised of two introductory chapters that describe the state of art in the field, the objectives and the used methodology and contributions; as well as three studies distributed over stimulation system level and sensing system level. The first study presents the development of close-loop compensatory tracking system to evaluate the usability and effectiveness of electrotactile sensory feedback in enabling real-time close-loop control in prosthetics. It examines and compares the subject’s adaptive performance and tolerance to random latencies while performing the dynamic control task (i.e. position control) and simultaneously receiving either visual feedback or electrotactile feedback for communicating the momentary tracking error. Moreover, it reported the minimum time delay needed for an abrupt impairment of users’ performance. The experimental results have shown that electrotactile feedback performance is less prone to changes with longer delays. However, visual feedback drops faster than electrotactile with increased time delays. This is a good indication for the effectiveness of electrotactile feedback in enabling close- loop control in prosthetics, since some delays are inevitable. The second study describes the development of a novel non-invasive compact multichannel interface for electrotactile feedback, containing 24 pads electrode matrix, with fully programmable stimulation unit, that investigates the ability of able-bodied human subjects to localize the electrotactile stimulus delivered through the electrode matrix. Furthermore, it designed a novel dual parameter -modulation (interleaved frequency and intensity) and compared it to conventional stimulation (same frequency for all pads). In addition and for the first time, it compared the electrotactile stimulation to mechanical stimulation. More, it exposes the integration of virtual prosthesis with the developed system in order to achieve better user experience and object manipulation through mapping the acquired real-time collected tactile data and feedback it simultaneously to the user. The experimental results demonstrated that the proposed interleaved coding substantially improved the spatial localization compared to same-frequency stimulation. Furthermore, it showed that same-frequency stimulation was equivalent to mechanical stimulation, whereas the performance with dual-parameter modulation was significantly better. The third study presents the realization of a novel, flexible, screen- printed e-skin based on P(VDF-TrFE) piezoelectric polymers, that would cover the fingertips and the palm of the prosthetic hand (particularly the Michelangelo hand by Ottobock) and an assistive sensorized glove for stroke patients. Moreover, it developed a new validation methodology to examine the sensors behavior while being solicited. The characterization results showed compatibility between the expected (modeled) behavior of the electrical response of each sensor to measured mechanical (normal) force at the skin surface, which in turn proved the combination of both fabrication and assembly processes was successful. This paves the way to define a practical, simplified and reproducible characterization protocol for e-skin patches In conclusion, by adopting innovative methodologies in sensing and stimulation systems, this thesis advances the overall development of close-loop sensory feedback human-machine interface used for restoration of sense of touch in prosthetics. Moreover, this research could lead to high-bandwidth high-fidelity transmission of tactile information for modern dexterous prostheses that could ameliorate the end user experience and facilitate it acceptance in the daily life.

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Luscombe, Julie. "Stepping out from behind the curtains of academic Oz : an autoethnography of restorative learning". Thesis, University of Exeter, 2015. http://hdl.handle.net/10871/17459.

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This critical autoethnographic exploration evolved following an initial curiosity concerning diversity of practice amongst (other) Lecturers when constructing feedback for mature undergraduate Registered Nurses. As an early exploration revealed that I was viewing my professional experiences as a learner and practitioner through a previously unacknowledged working class lens, I began to foreground personal experiences from which a more relational understanding of the intersecting nature of personal, professional and broader influences on practice has emerged. A reclaimed marginalised perspective provided an ethical direction for the research and for the development of a more nuanced understanding of feedback practice. Within this thesis, autobiographical writing, stories from practice and theory share a symbiotic and reciprocal relationship illustrating the intersectionality of multiple influences on practice. This layered and intertwined approach to data generation and interpretation allowed me to critically engage with my social and practice worlds incorporating the tensions and dilemmas of what it means to practice as a teacher and to be human within the academy. The theory of restorative learning (Lange, 2004, 2007) underpins the structure of the thesis, foregrounding the emerging influence of a restored marginalised perspective. The concepts of habitus, field, capital and symbolic violence (Bourdieu, 1973) have been used to think through how these restored perspectives and personal experiences intersect with professional and broader influences in practice. Through autoethnographic exploration insights emerged; the influence of a wounded learner habitus on feedback practice, a renegotiation of a privileged position in the feedback relationship and the development of trickster properties as a device to open up dialogue and reflexive spaces within my own culture in order to develop feedback practice beyond the self. In practice we are rarely encouraged to confront why we think the way we do about ourselves as teachers, particularly in relation to the social, cultural and political world around us. This thesis contributes to the ongoing scholarly conversation concerning influences on professional practice from a practitioner perspective and the role of a layered approach to autoethnography in making these perspectives accessible.

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Devreux, Lise. "Outils d'évaluation de l'état de santé des hydrosystèmes en tresses restaurés". Electronic Thesis or Diss., Université Côte d'Azur, 2023. http://www.theses.fr/2023COAZ2015.

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Depuis plusieurs décennies, les rivières en tresses ont largement été aménagées pour les ressources qu'elles procurent à la société, provoquant des modifications profondes de leur fonctionnement. Ces évolutions constituent des enjeux de gestion majeurs sur les bassins versants concernés, où la modification des processus physiques peut provoquer une altération considérable des systèmes et engendrer des risques pour les activités humaines présentes dans les vallées. La restauration est alors une pratique de gestion pertinente pour redonner une fonctionnalité à ces hydrosystèmes, notamment dans le but d'atteindre le bon état écologique des masses d'eau requis par la Directive Cadre sur l'Eau. Cette thèse, basée sur l'étude de quatre opérations de restauration hydromorphologiques sur des rivières en tresses alpines, a pour objectif d'adapter et de développer des outils d'analyse pour évaluer et quantifier la réussite des opérations de restauration afin de permettre un retour d'expérience. Des éléments clés sur la gestion et la compréhension de ces hydrosystèmes sont également présentés et discutés grâce à la prise en compte des trajectoires spatiale et temporelle évolutives des sites d'étude ainsi qu'une approche systémique et transdisciplinaire
Braided rivers have been harnessed for their natural resources and modified profoundly through decades of human activity, sometimes to the point where major ongoing management issues and risks to society have arisen. Restoration is then a process that aims to return functionality to these hydrosystems, especially in order to reach good ecological status according to the Water Framework Directive. This thesis, based on four hydromorphological restoration operations on Alpine braided rivers, aims to adapt and develop analysis tools to evaluate and quantify the success of restoration operations in order to produce restoration feedback. Key considerations for the effective management and understanding of these hydrosystems are also presented and discussed within the evolutive trajectories of the studied sites along with a systemic and transdiciplinary perspective

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Huang, Pinchieh y 黃品傑. "Adaptive Channel Estimation And Decision Feedback Orthogonality Restoration Filter for IEEE 802.11 Windowed OFDM". Thesis, 2001. http://ndltd.ncl.edu.tw/handle/61495949863070972550.

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碩士
國立臺灣大學
電信工程學研究所
89
Orthogonal Frequency Division Multiplexing (OFDM) is a promising multi-carrier modulation technique that can effectively mitigate impairments caused by wireless communication channels. OFDM has been adopted in many wireless broadband communication standards, such as IEEE 802.11a and HIPERLAN/2. In some OFDM standards (e.g., IEEE 802.11a), windowing is employed to reduce sensitivity to frequency offset and phase noise, and at the same time conserve bandwidth. However, windowing causes the loss of orthogonality between subcarriers. Furthermore, loss of orthogonality also happens due to inter-OFDM-block interference (IBI) if an OFDM system is not designed properly. In this thesis, we propose a decision feedback orthogonality restoration filter (DFORF) for restoring subcarrier orthogonality at the receiver. A novel channel interpolation algorithm is also proposed. Simulation results using IEEE 802.11a parameters show that with the proposed algorithm, significant performance gain can be achieved.

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Castelli, Giulio. "Evidences of climate mitigation from Landscape Restoration and Water Harvesting: A Remote Sensing Approach". Doctoral thesis, 2018. http://hdl.handle.net/2158/1131579.

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When changes are made in a landscape, changes are made to the microclimate. When farmers plant trees in or around their field, and when communities dig bunds to improve water retention, they change the local climate around them. In the current global climate debate, adaptation and mitigation are dominant concepts, while no attention has been paid to local solutions that can enhance local climatic resilience of landscapes. In arid to semi-arid areas of the world, measures such as Landscape Restoration and Water Harvesting (LRWH) are implemented to revert land degradation and increase soil moisture, reducing runoff losses. The present work aims to analyse to what extent storing soil moisture, with adequate land and water management practices, can reduce temperatures in the hot months after the rainy season, as a consequence of Soil Moisture-Temperature Coupling. Since it is demonstrated how soil moisture deficit can enhance heatwaves in diverse regions of the world, it is hypothesized that increasing soil moisture availability, during the dry and hot periods, can mitigate hot temperatures. The analysis has been carried out for Enabered catchment, in Tigray Region, Ethiopia, where the rainy season runs from June to August. Here, large scale LRWH implementation ended in 2008. An analysis based on remote sensing data has been carried out to evaluate (1) to what extent LRWH implementation can enhance soil moisture conservation at catchment scale; (2) to what extent LRWH implementation can mitigate temperatures in the dry season at catchment scale; and (3) if SMTC were evident. Results showed an increased capacity of the catchment to retain soil moisture produced in the rainy season until September (P < 0.01) and October (P < 0.1) and reduced temperatures for September (P < 0.1), October (P < 0.01) and November (P < 0.05), with decreases of Land Surface Temperatures up to 1.74 °C. A simple, parsimonious linear regression model demonstrated that SMTC is evident at catchment scale and that the implementation of LRWH measures provided a climate mitigation effect in the watershed. The present work can reinforce the call for an increased adoption of water harvesting, land restoration and green water management, to increase the resilience of agricultural ecosystem located in arid and semi-arid areas, that represent a key element to achieve global food security.

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DeMeester, Julie E. "FEEDBACKS of NITROGEN CYCLING and INVASION with the NON-NATIVE PLANT, MICROSTEGIUM VIMINEUM, in RIPARIAN WETLANDS". Diss., 2009. http://hdl.handle.net/10161/1129.

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Invasive species are rapidly expanding in riparian wetlands while concurrently anthropogenic causes are increasing nitrogen (N) into these ecosystems. Microstegium vimineum (Microstegium) is a particularly abundant invasive grass in the Southeast United States. To evaluate impacts of Microstegium on both plant diversity and N cycling in a riparian floodplain, paired plots of Microstegium hand-weeded and unweeded were established for three years. Plots without Microstegium increased from 4 to 15 species m-2 and 90% of the newly establishing species were native. The Microstegium community accumulated approximately half the annual N in biomass of the diverse community, 5.04 versus 9.36 g-N m-2 year-1, respectively (p=0.05). Decomposition and release of N from Microstegium detritus was much less than in the diverse community, 1.19 versus 5.24 g-N m-2 year-1. Rates of soil N mineralization estimated by in-situ incubations were relatively similar in all plots. While Microstegium invasion appears to greatly diminish within-ecosystem circulation of N through the under-story plants, it might increase ecosystem N losses through enhanced denitrification (due to lower redox potentials under Microstegium plots). Microstegium removal ceased in the fourth growing season and formerly weeded plots increased to 59% (± 11% SE) Microstegium cover and species richness decreased to <8 species m-2.

To learn how Microstegium responds to increased N, we conducted a greenhouse competition experiment between Microstegium and four native plants across an N gradient. There was a unique competition outcome in each species combination, yet Microstegium was most dominant in the high levels of N.

Last, we disturbed a floodplain similar to wetland restoration disturbance and tracked available N. We also established a native community of plants with and without Microstegium in three levels of N. Disturbance to the floodplain dramatically increased inorganic N, especially in the form of NO₃ which was five times higher in the disturbed floodplain than the undisturbed floodplain. N levels remained elevated for over a year. Microstegium was N responsive, but did not show negative effects to the planted vegetation until the second year. Ironically, restoration activities are increasing available N, and favoring invasive species which in turn detracts from restoration success.

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Libros sobre el tema "Restoration feedback"

Watson, John Scott. Changing the Culture. University of Illinois Press, 2017. http://dx.doi.org/10.5406/illinois/9780252039867.003.0004.

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This chapter examines the environmental impact of residents' behavior and the Prairie Crossing Homeowners Association's conservation management practices. Prairie restoration and preservation at Prairie Crossing plays a secondary role, mainly cultural in nature—and equally as important as the development's primary ecological purpose. The prairie acts as the symbol of Prairie Crossing, giving the development not only a name but also a character, the first impression a prospective buyer assimilates. The prairie and open space provide a positive feedback loop for the conservation agenda, offering for adult residents a sense of connection to the land, and for children a playground to stimulate the natural experience. In addition to the Prairie Crossing Homeowners Association's conservation practices and residents' conservation practices and behaviors, this chapter considers how Prairie Crossing combats knowledge deficits with both formal and informal educational settings. It also describes energy conservation as a guiding principle of Prairie Crossing as well as the project's economic viability.

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Capítulos de libros sobre el tema "Restoration feedback"

Yelenik, Stephanie G., Carla M. D'Antonio, Evan M. Rehm y Iain R. Caldwell. "Multiple feedbacks due to biotic interactions across trophic levels can lead to persistent novel conditions that hinder restoration." En Plant invasions: the role of biotic interactions, 402–20. Wallingford: CABI, 2020. http://dx.doi.org/10.1079/9781789242171.0402.

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Abstract Unlike traditional successional theory, Alternate Stable Equilibrium (ASE) theory posits that more than one community state is possible in a single environment, depending on the order that species arrive. ASE theory is often invoked in management situations where initial stressors have been removed, but native-dominated communities are not returning to degraded areas. Fundamental to this theory is the assumption that equilibria are maintained by positive feedbacks between colonizers and their environment. While ASE has been relatively well studied in aquatic ecosystems, more complex terrestrial systems offer multiple challenges, including species interactions across trophic levels that can lead to multiple feedbacks. Here, we discuss ASE theory as it applies to terrestrial, invaded ecosystems, and detail a case study from Hawai'i that exemplifies how species interactions can favour the persistence of invaders, and how an understanding of interactions and feedbacks can be used to guide management. Our system includes intact native-dominated mesic forest and areas cleared for pasture, planted with non-native grasses, and later planted with a monoculture of a native nitrogen-fixing tree in an effort to restore forests. We discuss interactions between birds, understorey fruiting native species, understorey non-native grasses, soils and bryophytes in separate feedback mechanisms, and explain our efforts to identify which of these feedbacks is most important to address in a management context. Finally, we suggest that using models can help overcome some of the challenges that terrestrial ecosystems pose when studying ASE.

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Costa, A. C. P. R., F. A. C. Oliveira, S. R. J. Oliveira y A. B. Soares. "Characterization of Sensory Perception Associated with Transcutaneous Electrostimulation Protocols for Tactile Feedback Restoration". En XXVII Brazilian Congress on Biomedical Engineering, 425–31. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-70601-2_66.

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Granata, Guiseppe, Winnie Jensen, Jean-Louis Divoux, David Guiraud, Silvestro Micera, Xavier Navarro, Thomas Stieglitz, Ken Yoshida y P. M. Rossini. "A New Treatment for Phantom Limb Pain Based on Restoration of Somatosensory Feedback Through Intraneural Electrical Stimulation". En Direct Nerve Stimulation for Induction of Sensation and Treatment of Phantom Limb Pain, 233–54. New York: River Publishers, 2022. http://dx.doi.org/10.1201/9781003337973-10.

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Sopcak, Paul y Kevin Hood. "Building a Culture of Restorative Practice and Restorative Responses to Academic Misconduct". En Academic Integrity in Canada, 553–71. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-83255-1_29.

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AbstractThe Universal Declaration of Human Rights’ Article 26 on education and more recently UNESCO’s “World Declaration on Higher Education for the Twenty-First Century: Mission and Action” have called for civic and ethical education alongside academic education in postsecondary settings. Many post-secondary institutions have made fostering civic responsibility, engaged citizenship, and ethical decision making in students a strategic priority. What often remains ambiguous is how these priorities translate into action. A growing body of scholarly literature and research establishes the role Restorative Practice (RP) can play in pursuing these strategic priorities surrounding moral development, emotional intelligence, and engaged citizenship. Specifically, RP has been shown to prevent conflict and misconduct, while empowering marginalized individuals. Restorative practices demonstrate fairness; and foster empathy, compassion and accountability; through experiential learning opportunities. In light of these developments, MacEwan University, in Alberta, Canada, has been actively building a restorative culture. One aspect of this endeavour was the revision of its Academic Integrity Policy and Academic Misconduct Procedures to include the possibility of alternative resolutions to academic misconduct, based on restorative practices and principles. In our chapter, we will (a) provide a brief introduction to restorative practices that makes explicit its connection to universities’ civic education mandate, integrity, and specifically, academic integrity; (b) describe the restorative practices model that is being established at MacEwan University; (c) discuss in detail the application of restorative practices to academic misconduct cases, including training of facilitators, as well as successes and challenges experienced in the first year since it became available; and, finally, (d) share feedback regarding its effectiveness received from students, staff, and faculty who participated in restorative resolutions.

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Caldwell, David J., Jeneva A. Cronin, Lila H. Levinson y Rajesh P.N. Rao. "Touch restoration through electrical cortical stimulation in humans". En Somatosensory Feedback for Neuroprosthetics, 443–78. Elsevier, 2021. http://dx.doi.org/10.1016/b978-0-12-822828-9.00021-6.

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Chen, Yu-Luen y Te-Son Kuo. "A Feedback Controlled FES in Rehabilitation". En Handbook of Research on Personal Autonomy Technologies and Disability Informatics, 144–53. IGI Global, 2011. http://dx.doi.org/10.4018/978-1-60566-206-0.ch009.

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A feedback control functional electrical stimulation (FES) system was proposed to prevent quadriceps weakness and drop-foot of the hemiplegia during gait training. The FES system is triggered by a footswitch on the heel of the affected foot to stimulate the tibialis anterior muscle for dorsi-flexion and to turn-off the knee locker in the swing phase through the main controller. The footswitch on the heel of the affected-side can be used to stimulate the quadriceps and turn-on the knee locker for quadriceps weakness in the stance phase. It was revealed that the mean velocity, cadence, stride length, active ankle motion range and functional ambulation category (FAC) were significantly improved. A paired t-test indicated that the differences in the electromyography (EMG) of the tibialis anterior and the quadriceps muscles between patient’s affected foot and unaffected foot were not significant (p>0.05) after 16 weeks of training. The proposed knee locker device with closed-loop FES system is capable of providing a hemiplegic patient with regular walking restoration after appropriate gait training.

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Yelenik, Stephanie G., Carla M. D’Antonio, Evan M. Rehm y Iain R. Caldwell. "Multiple feedbacks due to biotic interactions across trophic levels can lead to persistent novel conditions that hinder restoration." En Plant invasions: the role of biotic interactions, 402–20. CABI, 2020. http://dx.doi.org/10.1079/9781789242171.0023.

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Unlike traditional successional theory, Alternate Stable Equilibrium (ASE) theory posits that more than one community state is possible in a single environment, depending on the order that species arrive. ASE theory is often invoked in management situations where initial stressors have been removed, but native-dominated communities are not returning to degraded areas. Fundamental to this theory is the assumption that equilibria are maintained by positive feedbacks between colonizers and their environment. While ASE has been relatively well studied in aquatic ecosystems, more complex terrestrial systems offer multiple challenges, including species interactions across trophic levels that can lead to multiple feedbacks. Here, we discuss ASE theory as it applies to terrestrial, invaded ecosystems, and detail a case study from Hawai'i that exemplifies how species interactions can favour the persistence of invaders, and how an understanding of interactions and feedbacks can be used to guide management. Our system includes intact native-dominated mesic forest and areas cleared for pasture, planted with non-native grasses, and later planted with a monoculture of a native nitrogen-fixing tree in an effort to restore forests. We discuss interactions between birds, understorey fruiting native species, understorey non-native grasses, soils and bryophytes in separate feedback mechanisms, and explain our efforts to identify which of these feedbacks is most important to address in a management context. Finally, we suggest that using models can help overcome some of the challenges that terrestrial ecosystems pose when studying ASE.

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Florsheim, Joan L., Alison P. O’Dowd y Anne Chin. "Introduction to biogeomorphic responses to wildfire in fluvial ecosystems". En Biogeomorphic Responses to Wildfire in Fluvial Ecosystems. Geological Society of America, 2024. http://dx.doi.org/10.1130/2024.2562(001).

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ABSTRACT Developing wildfire biogeomorphology as an integrative science is fundamental toward understanding the dynamic processes of adjustment that must occur after wildfires to support heterogeneity, biodiversity, and resilience in fluvial ecosystems. This GSA Special Paper introduces and synthesizes several key points derived from interdisciplinary studies. First, post-wildfire sediment pulses that change the physical elements of fluvial habitat may be transitory or long-lasting, depending on variations in post-wildfire climate conditions. Second, biological processes and feedback may alter post-wildfire geomorphic responses and enhance ecosystem resilience. Third, a greater emphasis on integrated approaches, as encompassed by the discipline of wildfire biogeomorphology, is necessary to adapt ecosystem management strategies. New approaches toward conservation, restoration, and wildfire management that incorporate the variable and dynamic post-wildfire geomorphic responses, the feedbacks between biological and geomorphic processes, and the multiple possible disturbance and recovery trajectories will facilitate sustainable fire management practices in the future.

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"Patience and Sustainability". En The Virtues of Sustainability, editado por Jason Kawall, 187–211. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780190919818.003.0008.

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In this essay I first present a general account of the virtue of patience, drawing upon recent work by Matthew Pianalto and Nic Bommarito. I then illustrate how patience, so understood, will be a crucial virtue in achieving sustainability across a variety of contexts—from efforts in ecological restoration, to political and social action, to responding appropriately to setbacks, errors, and suffering more generally. I argue that a focus on patience in such contexts can bring to the fore often-overlooked aspects of the virtue, including its role (1) in pursuing goals where we ourselves will never see the full impacts and outcomes of our actions, and (2) in maintaining our goals and actions despite a lack of clear results and feedback. To pursue the long-term goals of sustainability effectively, often without clear, short-term, or immediate feedback will constitute a significant challenge; patience and perspective will be essential.

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Jaber, Wassim, Hussein A. H. Jaber, Ramzi Jaber y Zahraa Saleh. "The Convergence of AI and BCIs". En Artificial Intelligence in the Age of Nanotechnology, 98–113. IGI Global, 2023. http://dx.doi.org/10.4018/979-8-3693-0368-9.ch006.

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BCIs and AI converge for enhanced brain-machine interaction. AI optimizes signal processing and control algorithms, fueling applications like movement restoration and mind-driven communication. This comprehensive review underscores AI's vital role in BCIs, tackling translation hurdles and fostering innovation. It explores AI-boosted BCIs for motor control, sensory feedback, and research. Transformative outcomes encompass disability empowerment, performance enhancement, and deeper brain insights. Challenges include quicker training and improved sensor accuracy. This partnership heralds a dynamic future, revolutionizing human-device interaction and advancing neurotech. As AI and neurotechnology advance, BCIs promise impactful transformations, enriching lives, and capabilities.

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Actas de conferencias sobre el tema "Restoration feedback"

Jiang, Jie, Bo Lv y Guangjun Zhang. "Blind image restoration algorithm based on adaptive decision feedback equalizer". En Sixth International Symposium on Instrumentation and Control Technology: Signal Analysis, Measurement Theory, Photo-Electronic technology, and Artificial Intelligence, editado por Jiancheng Fang y Zhongyu Wang. SPIE, 2006. http://dx.doi.org/10.1117/12.716698.

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Mohammed, Samer, Philippe Poignet, Philippe Fraisse y David Guiraud. "Lower limbs movement restoration using input-output feedback linearization and model predictive control". En 2007 IEEE/RSJ International Conference on Intelligent Robots and Systems. IEEE, 2007. http://dx.doi.org/10.1109/iros.2007.4399356.

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Choinzonov, E. L., L. N. Balatskaya, S. Yu Chizhevskaya, R. V. Meshcheryakov, E. Yu Kostyuchenko y T. A. Ivanova. "Restoration of voice function by using biological feedback in laryngeal and hypopharyngeal carcinoma patients". En PHYSICS OF CANCER: INTERDISCIPLINARY PROBLEMS AND CLINICAL APPLICATIONS (PC’16): Proceedings of the International Conference on Physics of Cancer: Interdisciplinary Problems and Clinical Applications 2016. Author(s), 2016. http://dx.doi.org/10.1063/1.4960233.

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Ramasubramanian, Ashok, Nandan L. Nerurkar, Kate H. Achtien y Larry A. Taber. "Role of Mechanical Feedback in Restoration of Normal Cardiac C-Looping Following Perturbed Loading". En ASME 2007 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2007. http://dx.doi.org/10.1115/sbc2007-172183.

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Cardiac c-looping is an important developmental phase, as the initially straight heart tube (HT) is transformed into a c-shaped tube. Looping consists of two distinct processes: ventral bending, which is likely driven by actin polymerization, and dextral torsion, which is likely due to external forces. These forces are applied by a membrane enveloping the ventral side of the heart, the splanchnopleure (SPL, Fig. 2A) and a pair of atria that flank the caudal end of the heart tube (HT, Fig 1A). In particular, the atria provide the initial push, biasing the HT towards the right while the SPL applies a ventrally directed force, which causes the HT to rotate using the dorsal mesocardium (DM, Fig. 2A) as a pivot (the DM attaches the dorsal length of the heart to the body of the embryo).

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Janansefat, Shadi, Kemal Akkaya, Izzet F. Senturk y Michael Gloff. "Rethinking connectivity restoration in WSNs using feedback from a low-cost mobile sensor network testbed". En 2013 IEEE 38th Conference on Local Computer Networks Workshops (LCN Workshops). IEEE, 2013. http://dx.doi.org/10.1109/lcnw.2013.6758506.

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Shirai, Tomohiro. "Restoration of a blurred retinal image with liquid-crystal adaptive optics based on feedback interferometry". En 19th Congress of the International Commission for Optics: Optics for the Quality of Life, editado por Giancarlo C. Righini y Anna Consortini. SPIE, 2003. http://dx.doi.org/10.1117/12.523806.

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Carabal Montagud, María Ángeles, Virginia Santamarina Campos, María Victoria Esgueva López y Sofía Vicente Palomino. "Cooperative learning and brainstorming as didactic strategies in conservation and restoration of cultural assets". En INNODOCT 2019. Valencia: Universitat Politècnica de València, 2019. http://dx.doi.org/10.4995/inn2019.2019.10089.

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This article exposes the tools of cooperative learning and brainstorming as a didactic strategy, in which teamwork, diversity, interaction between the students and feedback between them are promoted as the main source of learning. In professions related to the conservation and restoration of cultural assets, we work as a team, thus is fundamental that the students' training prepares them for this work reality and enables them to be part of and lead these teams, fostering cross-cutting skills such as communication effective, critical thinking, application and practical thinking among others. We will present the case of a teaching experience, in which cooperative learning is a fundamental tool to solve one of the practices of the subject “Introduction to the Conservation and Restoration of golds and polychromies” of the Degree in Conservation and Restoration of Cultural Assets in Universitat Politècnica de València. The practice consists in the identification of manufacturing techniques, and focuses on the subsequent professionalization and comprehensive training of students. The results obtained from it show how peer learning is an effective, dynamic strategy with infinite possibilities.

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Wang, Yang y Xin Liu. "Trust Restoration of Potential Consumers by Merchant Feedback after Online Negative Reviews : Discussion based on Attribution Theory". En 2022 14th International Conference on Measuring Technology and Mechatronics Automation (ICMTMA). IEEE, 2022. http://dx.doi.org/10.1109/icmtma54903.2022.00146.

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Lo, Kanwai Peter y Guy Indebetouw. "Iterative processing using a cavity with a phase conjugate error". En OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.wl4.

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Iterative algorithms have become increasingly important for solving signal recovery/restoration as well as for solving recognition/selection problems. The optical implementation of iterative algorithms using a conventional feedback system is limited by the losses and by the accumulation of phase error at each round trip. A cavity that utilizes a phase conjugate mirror (PCM) offers a means to overcome these limitations. A PCM with gain can compensate for the cavity losses and restore the phase of the wave-front after each pair of round trips. It thus provides a regenerative feedback without accumulation of phase errors. Many image recovery schemes are equivalent to an equalization of the eigenvalues distribution. This process requires either a negative feedback, which is generally not possible to achieve in a cavity with a PCM, or a positive feedback with complementary operators in the feedback loop. A typical example of the latter is the Gerchberg algorithm. An optical system was built to implement the Gerchberg algorithm using an externally pumped BaTiO3 crystal as a PCM, and using complementary masks in the feedback loop. The recovery of simple band-limited images is demonstrated, and some of the limitations of the system are discussed.

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Adegboye, Phillip, Ekene Onyekwena y Tolu Kuku. "Agile Adoption Enhances Cross-Functional Assessment of Idle Wellbore Restoration Project". En SPE Nigeria Annual International Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/217144-ms.

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Abstract The Joint Venture ("JV") Offshore Asset of company X in Nigeria hosts a portfolio of more than 600 wellbores. The asset is over 55 years old and as such, has a sizable number of idle wellbores. The Asset Team has been actively intervening in these idle wellbores using non-rig workover ("NRWO") units over the years. However, due to the age of these wells and the severity of some of the downhole conditions, an increasing number of these wells have become mechanically challenging to execute using NRWO barges. A higher capacity but cost-effective workover unit is therefore required. A cross functional team comprising Asset Team, Wells and Facilities Engineering, was set up to evaluate this cost-efficient restoration project at a unit development cost ("UDC") less than $7/BOE, being the Unit Operating Expenses target for the Business Unit (BU). The early challenge faced by the cross-functional team was the determination of a jointly agreed set of criteria to adopt in assessing the candidates for viability. A candidate considered robust by the Asset Team, based on subsurface estimated ultimate recovery ("EUR") might not necessarily be viable from the Wells and Facilities Engineering ("FE") standpoints. The challenge resulted in delays in making appreciable progress at the early stage of the project. An Agile framework was adopted by the team to aid cross functional engagements. This is an iterative decision-making process which provides frequent feedback on work-in-progress thereby resulting in an early project value delivery. The team collaboratively developed a cross plot which integrates the subsurface, Wells and FE assessment considerations and criteria. It is a plot of Ease of Execution ("EoE") versus EUR which displays the spread of all the candidates assessed against the backdrop of jointly agreed set of criteria. Utilizing the Agile framework principles, every new candidate was screened through the cross-functional plot with little or no recycling. Within 3-4 months, the team assessed 52 wells through this process, a feat which could have otherwise been achieved in 8-12 months. The quadrants of the cross plot enabled a simple visualization of the candidates across four distinct categories namely: High EUR & High EoE, High EUR & Low EoE, Low EUR & High EoE, and Low EUR & Low EoE. The adoption of Agile principles by the experienced multifunctional team accelerated the workover assessment process. A sound understanding of the asset was also pivotal to achieving a successful assessment.

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Informes sobre el tema "Restoration feedback"

Suir, Glenn y Jacob Berkowitz. Inundation depth and duration impacts on wetland soils and vegetation : state of knowledge. Engineer Research and Development Center (U.S.), septiembre de 2021. http://dx.doi.org/10.21079/11681/42146.

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The following synthesizes studies investigating plant and soil responses to increased inundation in order to support ecosystem restoration efforts related to the alteration of natural wetland hydrodynamics. Specific topics include hydrologic regimes, soil response to inundation, and implications for vegetation communities exposed to increased water depths. Results highlight the important interactions between water, soils, and vegetation that determine the trajectory and fate of wetland ecosystems, including the development of feedback loops related to marsh degradation and subsidence. This report then discusses the knowledge gaps related to implications of inundation depth, timing, and duration within an ecosystem restoration context, identifying opportunities for future research while providing source materials for practitioners developing restoration projects.

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Viana, Letícia, Britaldo Soares Filho, Letícia Lima y Maria Bowman. Challenges for Low-Carbon Agriculture and Forest Conservation in Brazil. Inter-American Development Bank, febrero de 2012. http://dx.doi.org/10.18235/0008990.

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This paper discusses the feedbacks between climate change, deforestation, and agricultural expansion and presents scenarios of agricultural demand and forest conservation and restoration policies in Brazil. In addition, it discusses the implications of these scenarios for food and befoul supply, the provision of ecosystem services, and climate change mitigation. Modeling these scenarios provides an integrated assessment of plausible pathways for achieving the goals of the National Climate Change Plan, for making an objective source of information available for the debate on the Forest Code, and for supporting Brazil's cropland expansion plan as well as anticipating potential conflicts.

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