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Journal articles on the topic 'Pvsol'

Author: Grafiati

Published: 28 June 2021

Last updated: 15 February 2022

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1

Bugała, Artur, and Karol Bednarek. "The use of computer simulations and measurements in determining the energy efficiency of photovoltaic installations." ITM Web of Conferences 19 (2018): 01021. http://dx.doi.org/10.1051/itmconf/20181901021.

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The paper presents an analysis of the energy efficiency of a photovoltaic installation connected to the AC power grid. Forecasting of energy yield was carried out in two ways: with the use of PVSol software, as well as physical measurements of daily electricity production. On that basis, a statistical correlation between the results obtained from measurements and computer calculations was determined.

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Abernethy, Margaret A., Yu Flora Kuang, and Bo Qin. "The Influence of CEO Power on Compensation Contract Design." Accounting Review 90, no. 4 (October 1, 2014): 1265–306. http://dx.doi.org/10.2308/accr-50971.

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ABSTRACT We investigate whether CEO power influences a firm's decision to change its compensation system in response to regulatory and public pressure. In particular, we assess whether CEO power influences the choice of performance measures as a form of camouflage to minimize the impact of these reforms on their wealth. We examine one component of CEO pay, namely, the use of performance-vested stock option (PVSO) plans, and find that firms with powerful CEOs attach less challenging targets in the initial PVSOs granted to their CEOs. Such firms also appear to adopt PVSO plans early, and are more likely to do so when faced with public outrage over executive compensation. Our results suggest that powerful CEOs attempt to appease public outrage by quickly adopting PVSOs, but that adopting PVSOs early does not appear to be an optimal strategy for increasing shareholder value. Regulators intended that implementation of PVSOs would be beneficial to shareholders by improving the link between CEO pay and firm performance. However, our results indicate that powerful CEOs can negate some of the beneficial effect of PVSOs through their influence on adoption and choice of performance targets. Data Availability: All data used in this study are publicly available from the sources indicated in the paper.

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ABDÜLSAMED, TABAK, and ENDIZ MUSTAFA SACID. "THE COMPARATIVE ANALYZES OF SOLAR ENERGY PRODUCTION POTENTIAL BETWEEN VAN AND ANTALYA USING PVSOL SIMULATION TOOL." i-manager’s Journal on Instrumentation and Control Engineering 4, no. 3 (2016): 1. http://dx.doi.org/10.26634/jic.4.3.7061.

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Mehadi, Abdullah Al, Misbahul Alam Chowdhury, Mirza Muntasir Nishat, Fahim Faisal, and Md Minhajul Islam. "A software-based approach in designing a rooftop bifacial PV system for the North Hall of Residence, IUT." Clean Energy 5, no. 3 (July 8, 2021): 403–22. http://dx.doi.org/10.1093/ce/zkab019.

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Abstract Bifacial rooftop photovoltaic panels appear to be an excellent means of power generation in this era of urbanization, especially for land-limited countries like Bangladesh. This paper presents a software-based approach to design and simulate a bifacial solar-panel-based energy model on the rooftop of the North Hall of Residence of the Islamic University of Technology, Gazipur. This vertically mounted model investigates the feasibility and applicability of such an energy model in a university residence, situated in a load-shedding-prone area. Hence, three prominent software platforms, namely PVSOL, PVsyst and System Advisor Model (SAM), are brought into action and rigorous simulations are performed for three different orientations; promising outcomes are observed in terms of annual energy yield, bifacial gain (BG) and consumption coverage of the grid and PV model. The annual energy demand of the North Hall is ~444 733.5 kWh. The three orientations can generate annually 92 508.62, 94 643.48 and 86 758.94 kWh, respectively. Hence, it is evident that the proposed orientations can supply almost 19–21% of the site’s annual demand. Monthly BG analysis shows an overall increase in energy gain of 13%, 15.6% and 6% for Orientation-1, Orientation-2 and Orientation-3, respectively. A rigorous comparative analysis and deviation analysis among the software results has been accomplished to gain more insight into the feasibility of the proposed system. Thus, we have focused on a detailed software-based estimation of energy production for different orientations of the PV panels, considering several factors, which will provide prior knowledge and assessment before going for hardware implementation in the future.

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Mubarak, Riyad, Eduardo Weide Luiz, and Gunther Seckmeyer. "Why PV Modules Should Preferably No Longer Be Oriented to the South in the Near Future." Energies 12, no. 23 (November 28, 2019): 4528. http://dx.doi.org/10.3390/en12234528.

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PV modules tilted and oriented toward east and west directions gain gradually more importance as an alternative to the presently-preferred south (north in the Southern Hemisphere) orientation and it is shown to become economically superior even under the reimbursement of feed-in tariff (FIT). This is a consequence of the increasing spread between the decreasing costs of self-consumed solar power and the costs for power from the grid. One-minute values of irradiance were measured by silicon sensors at different orientations and tilt angles in Hannover (Germany) over three years. We show that south-oriented collectors give the highest electrical power during the day, whereas combinations of east and west orientations (E-W) result in the highest self-consumption rate (SC), and combinations of southeast and southwest (SE-SW) orientations result in the highest degree of autarky (AD), although they reduce the yearly PV Power by 5–6%. Moreover, the economic analysis of PV systems without FIT shows that the SE-SW and E-W combinations have the lowest electricity cost and they are more beneficial in terms of internal rate of return (IRR), compared to the S orientation at the same tilt. For PV systems with FIT, the S orientation presently provides the highest transfer of money from the supplier. However, as a consequence of the continuing decline of FIT, the economic advantage of S orientation is decreasing. E-W and SE-SW orientations are more beneficial for the owner as soon as FIT decreases to 7 Ct/kWh. East and west orientations of PV modules do not only have benefits for the individual owner but avoid high costs for storing energy—regardless who would own the storage facilities—and by avoiding high noon peaks of solar energy production during sunny periods, which would become an increasing problem for the grid if more solar power is installed. Furthermore, two types of commonly used PV software (PVSOL and PVsyst) were used to simulate the system performance. The comparison with measurements showed that both PV software underestimate SC and AD for all studied orientations, leading to the conclusion that improvements are necessary in modelling.

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Santos, Milton Cesar P., Mario Sarcinelli-Filhot, Alexandre S. Brandaot, and Ricardo Carelli. "Un Controlador Basado en la Fusión de Controladores PVTOL para Navegación 3D de Vehículos Aéreos Autónomos." Revista Tecnología y Ciencia, no. 36 (October 30, 2019): 226–43. http://dx.doi.org/10.33414/rtyc.36.226-243.2019.

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En este trabajo se propone una arquitectura de control basada en la fusión de las acciones de control generadas por tres controladores sencillos (controladores PVTOL, del inglés Planar Vertical Take-Off and Landing) para guiar vehículos aéreos autónomos en posicionamiento y seguimiento de caminos 3D. Considerando la navegación como una tarea compuesta por el control de la orientación del vehículo en relación al blanco (asociada a un controlador Z-PVTOL), por el control de su movimiento hacia adelante (asociado a un controlador XZ-PVTOL), y por la corrección de cualquier desplazamiento lateral (asociada a un controlador YZ-PVTOL, similar al controlador XZ-PVTOL), nuestro primer abordaje consistió en ejecutar dichas maniobras parciales una por vez, utilizando los controladores PVTOL, conmutando de uno al otro mediante la acción de un supervisor. En este trabajo el abordaje se cambió, pasando a considerarse que los controladores PVTOL actúan simultáneamente y generando la acción de control final mediante la fusión de las acciones de control generadas por ellos, acoplando así suavemente tres controladores muy sencillos. Se presentan resultados experimentales para validar el abordaje propuesta, y su desempeño en vuelo es comparado con el desempeño correspondiente a la estrategia de conmutación.

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Lambert, Susan J., Jason B. Scott, Sarah J. Pethybridge, and Frank S. Hay. "Strain Characterization of Potato virus S Isolates from Tasmania, Australia." Plant Disease 96, no. 6 (June 2012): 813–19. http://dx.doi.org/10.1094/pdis-07-11-0573.

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Potato virus S (PVS) is prevalent within potato (Solanum tuberosum) production worldwide. Traditionally, PVS has been split into two strains, Ordinary (PVSO) and Andean (PVSA), based on reaction in herbaceous indicator species such as Chenopodium quinoa. However, recent research has identified further strain designations, such as PVSO-CS (Ordinary and Chenopodium systemic). Forty-four isolates of PVS were collected from potato seed lines in different geographical regions within Tasmania, Australia. Isolates were initially characterized by reactions in C. quinoa. Nineteen isolates were characterized as PVSO, based on the development of local lesions and serological detection in inoculated leaves only. Three isolates were identified as PVSA-like, based on local lesion development in inoculated leaves, mild mottling or chlorotic spots on noninoculated leaves, and serological detection in both inoculated and noninoculated leaves. Thirteen isolates produced no symptoms, and were detected serologically in inoculated leaves only (PVSO-like). Four isolates produced no symptoms but were detected serologically in both inoculated and noninoculated leaves (PVSA-like). Five isolates produced symptoms in inoculated leaves only but were detected serologically in both inoculated and noninoculated leaves (also PVSA-like). The ability of isolates to infect tomato has also been used as a criterion to assist in PVS strain differentiation. A subsample of isolates (n = 16) was unable to infect tomato ‘Grosse Lisse’. Seventeen isolates representative of these groupings based on reactions in C. quinoa were also characterized by coat-protein sequencing. Phylogenetic comparisons suggested that all isolates were PVSO rather than PVSA. Therefore, whereas some of these PVS isolates were systemic in C. quinoa, findings from this study suggest that they were not PVSA, and that only PVSO and PVSO-CS isolates are present in Tasmania. The implications of this finding for disease management are discussed.

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Van Jura, Josh, David Haines, and Andrew Gemperline. "Use of Portable and Dynamic Variable Speed Limits in Construction Zones." Transportation Research Record: Journal of the Transportation Research Board 2672, no. 16 (September 6, 2018): 35–45. http://dx.doi.org/10.1177/0361198118794284.

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The Utah Department of Transportation (UDOT) implemented dynamic management of portable variable speed limit (PVSL) technology to reduce regulatory speed limits through an active work space (AWS). UDOT also developed and tested an intelligent system approach to alter speed limits in construction work zones. The goal of the PVSL system was to provide a portable and dynamic system that was easy for construction personnel to use to prudently reduce speeds within an AWS and make construction work zones safer for workers and the traveling public, while limiting the need to reduce speed throughout the AWS, rather than the entire construction work zone. This was achieved through temporary regulatory reductions in driver speeds within the immediate boundary of an AWS when workers were on site and exposed to the danger of errant vehicles during active construction. The system also raises speed limits when workers were not present. This PVSL system used a dynamic variable speed limit (VSL) algorithm to raise and lower the regulatory speed limits. The PVSL system also provided a queue warning algorithm that operated independent of the VSL algorithm to control messages posted on the portable variable message sign (PVMS) trailers to disseminate dynamic information to drivers. UDOT has completed 2 years of PVSL system deployment testing in four separate construction work zones to evaluate the effectiveness of the system. This paper highlights key elements that guided development of the PVSL system, along with the successful results from deployment of the system.

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Poletti, Sophia C., Elisabeth Michel, and Thomas Hummel. "Olfactory Training Using Heavy and Light Weight Molecule Odors." Perception 46, no. 3-4 (October 5, 2016): 343–51. http://dx.doi.org/10.1177/0301006616672881.

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Background Repeated short-term exposure to odors is known to improve olfaction in patients with acquired olfactory dysfunction. The aim was to find out whether differences in molecular weight of odors used for olfactory training influences olfaction. We hypothesized a greater improvement following training with light weight molecule (LWM) odors. Methods A prospective study was performed in patients with posttraumatic (PTOL) and postviral olfactory loss (PVOL). Olfactory training was performed over a period of 5 months. One group ( n = 48) used four odors containing heavy weight molecules (HWM; >150 g/mol) and another ( n = 48) containing LWM (<150 g/mol). Olfaction was tested before and after the training using the Sniffin’ Sticks test. Results Olfactory training was associated with olfactory improvement, with the improvement in PVOL patients being three times greater than that seen in the PTOL group. Compared with LWM training, HWM training was associated with a significantly greater improvement in Phenyl Ethyl Alcohol (PEA) threshold scores in PVOL patients; however, no such improvement could be shown for other subtests or in PTOL patients. Conclusion Overall, training was associated with olfactory improvement. With the exception of threshold scores in PVOL, there were no significant differences between LWM and HWM groups.

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Randall, George K., and Alex Bishop. "A TEST OF THE OKLAHOMA INMATE FORGIVENESS AND WELL-BEING MODEL." Innovation in Aging 3, Supplement_1 (November 2019): S359. http://dx.doi.org/10.1093/geroni/igz038.1305.

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Abstract Data was collected from older male offenders (N = 86 non-violent; N = 163 violent) incarcerated in Oklahoma. Testing a forgiveness model, positive evaluation of life PVOL was regressed on religiosity (REL) and forgiveness of self (FSelf), others (FOthers), and situation (FSit) using hierarchical OLS regression. Blocks of predictors included: a) age and education; b) religiosity; and c) FSelf, FOthers, and FSit. For the non-violent model of PVOL significant predictors included REL (β = .26, p ≤ .01) and FSelf (β = .40, p ≤ .01). For the violent offender model of PVOL significant predictors included REL (β = .31, p ≤ .001), FS (β = .21, p ≤ .01) and FSit (β = .33, p ≤ .001). Result indicate effects of REL and FSelf for both non-violent and violent offenders but a unique association of FSit for violent offenders. Implications for gerontological inquiry, practice, and policy are discussed.

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Chun, Seung Su. "The Pattern Based Visual Property Specification Language and Supporting System for Software Verifications." Applied Mechanics and Materials 752-753 (April 2015): 1090–96. http://dx.doi.org/10.4028/www.scientific.net/amm.752-753.1090.

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This paper deals with issue of properties specification for software verifications and translation between formal languages. Through this paper, the unique framework of property specifications including most kinds of formal specifications logics, automatic methods are shown by a property specifications guided system and PVSL(The Pattern based Visual property Specification Language).Additionally, a properties to specify and structures, Interconnection of them are also described by property charts. In this study, the pattern based visual property specification language (PVSL) is defined and property specifications method is also designed by convenience specifications of required property.Required properties can be described by its charts and analyzes its meaning and structures as using patterns diagrams and property and-or tree. On the other hands, it also guarantees stability and limitation of utilizations of patterns using much stronger specifying Dwyer`s meaning based property classification. The PVSL and property charts use hierarchical state machine notation to take advantage of knowledge a person who is one of practitioners has as much as possible, and for Nu-SMV, CW-CNC. They can be adapted to describe property charts and analyze into examples of CTL(Computation Tree Logic) and Modal Mu-Calculus logic that have been already used.Keywords: Patterns, Property specifications, model checking, Software verification

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Consolini, Luca, Manfredi Maggiore, Christopher Nielsen, and Mario Tosques. "Path following for the PVTOL aircraft." Automatica 46, no. 8 (August 2010): 1284–96. http://dx.doi.org/10.1016/j.automatica.2010.05.014.

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Sánchez, Anand, Isabelle Fantoni, Rogelio Lozano, and J. De León Morales. "Nonlinear Estimation of the PVTOL Aircraft Attitude." IFAC Proceedings Volumes 37, no. 21 (December 2004): 527–32. http://dx.doi.org/10.1016/s1474-6670(17)30523-2.

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Feng Lin, W. Zhang, and R. D. Brandt. "Robust hovering control of a PVTOL aircraft." IEEE Transactions on Control Systems Technology 7, no. 3 (May 1999): 343–51. http://dx.doi.org/10.1109/87.761054.

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Sánchez, Anand, Isabelle Fantoni, Rogelio Lozano, and Jesús De León Morales. "OBSERVER-BASED CONTROL OF A PVTOL AIRCRAFT." IFAC Proceedings Volumes 38, no. 1 (2005): 121–26. http://dx.doi.org/10.3182/20050703-6-cz-1902.01981.

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Machado, Gabriela Carvalho, Caio Leônidas Oliveira de Andrade, and Carlos Maurício Cardeal Mendes. "Avaliação quantitativa da produção ambulatorial em saúde auditiva no município de Salvador-Bahia no período de 2004 a 2016." Revista de Ciências Médicas e Biológicas 16, no. 3 (December 19, 2017): 323. http://dx.doi.org/10.9771/cmbio.v16i3.24480.

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<p><strong>Introdução: </strong>A saúde auditiva no Brasil ganhou impulso com a implantação da Política Nacional de Atenção à Saúde Auditiva (PNASA), em 2004, gerando melhorias para a assistência ao deficiente auditivo. Essa política ficou vigente até o ano de 2011, quando foi instituído o Plano Nacional dos Direitos da Pessoa com Deficiência – Plano Viver sem Limite (PVSL), mudando o cenário brasileiro no cuidado à pessoa com deficiência, no qual a assistência ao deficiente auditivo havia sido incluída. <strong>Objetivos</strong>: Avaliar a produção ambulatorial em saúde auditiva e os recursos financeiros investidos nessa produção nos anos de 2004 a 2016, no município de Salvador-Bahia e verificar o impacto da revogação da PNASA e implantação do PVSL no tempo sobre a produção ambulatorial em saúde auditiva e recursos financeiros investidos nessa produção no município de Salvador. <strong>Métodos</strong>: Estudo ecológico realizado através de dados secundários de domínio público provenientes do Sistema de Informações Ambulatoriais do SUS (SIA/SUS). Foi realizada análise descritiva dos dados por meio do tamanho do efeito, média, desvio padrão, valor mínimo e máximo, frequência relativa e frequência absoluta. <strong>Resultados</strong>: Verificou-se crescimento da produção ambulatorial e dos recursos financeiros investidos no ano de 2004 a 2016. Observou-se, também, que a revogação da PNASA e instituição do PVSL ocasionou grande efeito na produção ambulatorial e nos recursos financeiros. <strong>Conclusão:</strong> Foi possível constatar que as mudanças no cenário da saúde auditiva no Brasil geraram evolução dos serviços, podendo ser constatado pela crescente produção ambulatorial e aumento dos investimentos financeiros ao longo dos anos.</p>

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Öztürk, Özkan, and Hacı M. Güzey. "Saturation control of PVTOL aircraft on time scales." Journal of Mathematics and Computer Science 21, no. 03 (April 24, 2020): 198–212. http://dx.doi.org/10.22436/jmcs.021.03.04.

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LU, XIAO-YUN, SARAH K. SPURGEON, and IAN POSTXETHWAITE. "Robust variable structure control of a PVTOL aircraft." International Journal of Systems Science 28, no. 6 (June 1997): 547–58. http://dx.doi.org/10.1080/00207729708929415.

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Obregon-Pulido, G., B. Castillo-Toledo, and A. G. Loukianov. "Adaptive internal model regulation of a pvtol vehicle." IFAC Proceedings Volumes 37, no. 21 (December 2004): 533–38. http://dx.doi.org/10.1016/s1474-6670(17)30524-4.

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Salazar-Cruz, S., and R. Lozano. "ROBUST CONTROL OF PVTOL AIRCRAFT USING SATURATIONS FUNCTIONS." IFAC Proceedings Volumes 38, no. 1 (2005): 360–65. http://dx.doi.org/10.3182/20050703-6-cz-1902.02021.

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Fantoni, Isabelle, Rogelio Lozano, and Pedro Castillo. "A SIMPLE STABILIZATION ALGORITHM FOR THE PVTOL AIRCRAFT." IFAC Proceedings Volumes 35, no. 1 (2002): 7–11. http://dx.doi.org/10.3182/20020721-6-es-1901.01227.

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Vallejo C., Daniela, Pablo Andrés Gutiérrez S., and Mauricio Marín M. "Genome characterization of a Potato virus S (PVS) variant from tuber sprouts of Solanum phureja Juz. et Buk." Agronomía Colombiana 34, no. 1 (January 1, 2016): 51–60. http://dx.doi.org/10.15446/agron.colomb.v34n1.53161.

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Potato virus S (PVS) is a prevalent virus in potato fields in Colombia and the rest of the world. PVS has been classified into two separate lineages, PVSO (Ordinary) and PVSA (An- dean), which are genetically distinct. In this study, the com- plete genome sequence of a new PVS isolate (PVS_Antioquia) was obtained using High-throughput sequencing (Illumina HiSeq-2000) from tuber sprouts of Solanum phureja (var. Criolla Colombia). The PVS_Antioquia genome comprises 8,483 nt that code for six ORFs: RdRp (223 kDa), TGBp1-3 (25kDa, 12kDa, 7kDa) CP (32.3 kDa) and NABP (11 kDa) and share a high sequence identity with respect to the PVS_RVC (>95%) from Colombia, in contrast to 81 to 82% identity with respect to the PVSA and PVSO isolates from around the world. This genome information was used to design RT-qPCR primers that are specific for the Colombian PVS strains (RVC and Antioquia) which were validated in S. phureja leaf and tuber samples. These primers detected PVS in 80 and 60% of a set of fifteen leaf and tuber samples, respectively, suggesting a high incidence of this virus in the potato crops of Antioquia.

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Eminaga, Okyaz, Omran Alhamad, Udo Engelmann, Sebastian Wille, and Axel Heidenreich. "Inclusion of corrected calcium and creatinine levels in a novel nomogram for prediction of pathologically localized prostate cancer." Journal of Clinical Oncology 34, no. 2_suppl (January 10, 2016): 140. http://dx.doi.org/10.1200/jco.2016.34.2_suppl.140.

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140 Background: The role of routine parameters in the prediction of organ-confined Prostate Cancer (oPCa) remains unclear. Methods: We conducted a retrospective study of 246 patients with PCa diagnosed on biopsy, who underwent radical prostatectomy with extended lymph node dissection. None of these patients received a neoadjuvant therapy. Gleason score (xGLS), percent of positive cores involved by PCa (pCores), results of transrectal evaluation (TRUS, DRE), prostate volume (PVol), albumin-corrected Calcium (Ca), Hemoglobin (Hb), Creatinine (Crea), PSA, and age at RPE were considered. Postoperative variables including Gleason score (pGLS), TNM stages were evaluated. These patients were divided according to disease advancement into pathologically localized (pT2) and advanced PCa (pT3/4 or pN1). A L2 penalized regression model including all preoperative parameters was evaluated to design a nomogram for oPCa prediction. Furthermore, the internal validation of the nomogram was performed using bootstrapping and cross-validations. The precision and accuracy of the novel nomogram were evaluated by using AUC, F-Score, Brier-Score and the classification accuracy (CA). Results: The lowest probability for pathologically localized PCa was found in patients having the following features: PSA > 20 ng/ml, detection of PCa in all cores, high Ca [1.21 fold over upper normal limit (ULN)] and Crea levels (2.27 fold over ULN), xGls > 7 and normal PVol. A nomogram for oPCa was developed including the following parameter: Crea, Ca, PSA, xGls, PVol, TRUS, pCores. The sensitivity and the specificity of the nomogram for prediction of pathologically localized PCa were 92.2% and 35.9%, respectively. AUC of 0.811, CA of 80.1%, F-Score 0.879, a precision of 84.0%. and Brier-Score of 0.2599 were calculated. The predicted probability of the novel nomogram was associated with higher accuracy for prediction of oPCa compared to those of Partin table and Kattan nomogram. Conclusions: Serum creatinine and corrected calcium are indpendent predictors of oPCa. The novel nomogram can predict oPCa with high precision and accuracy. However, an external validation of the novel nomogram is needed.

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Yu-Chan, Chen, Ma Bao-Li, and Xie Wen-Jing. "Robust Stabilization of Nonlinear PVTOL Aircraft with Parameter Uncertainties." Asian Journal of Control 19, no. 3 (November 28, 2016): 1239–49. http://dx.doi.org/10.1002/asjc.1411.

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Aguilar‐Ibanez, Carlos, Hebertt Sira‐Ramirez, Miguel S. Suarez‐Castanon, and Ruben Garrido. "Robust Trajectory‐Tracking Control of a PVTOL under Crosswind." Asian Journal of Control 21, no. 3 (May 30, 2018): 1293–306. http://dx.doi.org/10.1002/asjc.1817.

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Hernández-Castañeda, Fernando, Víctor Santibáñez, and Francisco Jurado. "Priority altitude PVTOL aircraft control via immersion and invariance." International Journal of Control 93, no. 10 (December 10, 2018): 2290–301. http://dx.doi.org/10.1080/00207179.2018.1554269.

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Zhang, Chunwei, Huosheng Hu, and Xinli Xu. "Research on reconfigurable control for a hovering PVTOL aircraft." International Journal of Modelling, Identification and Control 32, no. 3/4 (2019): 232. http://dx.doi.org/10.1504/ijmic.2019.10025289.

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Xu, Xinli, Chunwei Zhang, and osheng Hu. "Research on reconfigurable control for a hovering PVTOL aircraft." International Journal of Modelling, Identification and Control 32, no. 3/4 (2019): 232–37. http://dx.doi.org/10.1504/ijmic.2019.103658.

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Andersson, Joel Marcus, Tobias Nordström, Martin Eklund, and Henrik Gronberg. "The predictive value of DRE in the modern era of prostate cancer diagnostics." Journal of Clinical Oncology 37, no. 7_suppl (March 1, 2019): 48. http://dx.doi.org/10.1200/jco.2019.37.7_suppl.48.

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48 Background: DRE (digital rectal examination) suspicious for prostate cancer is still used as a clinical tool to diagnose prostate cancer. We aim to analyse the predictive value of DRE to diagnose prostate cancer ISUP grade group ≥2 (GG≥2) prostate cancer including the setting of STHLM3 test as a variable. Methods: The previously described STHLM3 screening-cohort included men between 50 to 70 years with ≥10% risk of prostate cancer as assessed by PSA or the Stockholm3 test and invited for transrectal biopsy (TRUSbx). All 7415 biopsied men was included for analysis. DRE status was categorized as T1-T4. We analysed sensitivity (Sn), specificity (Sp), positive predictive value (PPV) and negative predictive value (NPV) for DRE status of T2-4 to predict GG≥2 and GG≥3 in biopsies. In a multivariate logistic regression analysis; we adjusted for PSA, age, PVol, earlier biopsy (EB) and adjusted STHLM3 model risk set to exclude DRE and prostate volume (PVol). We calculated adjusted odds ratio (OR) for different strata of adjusted STHLM3 risk. Results: Prevalence of ISUP≥2 was 16.8% (1,243/7415). 9.7% (716/7415) men had DRE suspicious for cancer (T2-4) with a Sn to detect GG≥2 of 25.2%. Sp, PPV and NPV was 93.5%, 43.7% and 86.1%, respectively. In univariate model the OR for DRE T2-4 vs. T1 to predict GG≥2 was 4.28 (95% CI 4.09–5.67). Logistic regression analysis including also age, PVol, PSA, earlier biopsies and adjusted STHLM3 risk (%) gave an OR for DRE T2-4 of 2.87 (95% CI 2.36–3.49). In the same analysis stratified PSA group 5-10 ng/ml with PSA < 3 ng/ml as baseline gave OR = 3.21. Using the same univariate model, OR for DRE T2-4 vs. T1 to predict GG≥3 was 6.68 (95% CI 5.44–8.21) and in the multivariate model OR was 3.25 (95% CI 2.54–4.17). Conclusions: As a diagnostic test DRE holds little merit on its own but in combination with other clinical factors and biomarkers in this study we could show that it contributes with value. Just under half of men with DRE suspicious for cancer has GG≥2 cancer. This study does not establish evidence to rule out DRE as a clinically valuable adjunct to PSA, other clinical parameters and new biomarkers like STHLM3.

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30

Zavala-Río, A., I. Fantoni, and R. Lozano. "Global stabilization of a PVTOL aircraft model with bounded inputs." International Journal of Control 76, no. 18 (December 2003): 1833–44. http://dx.doi.org/10.1080/00207170310001637147.

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31

Poulin, G., A. Chemori, and N. Marchand. "Minimum energy oriented global stabilizing control of the PVTOL aircraft." International Journal of Control 80, no. 3 (March 2007): 430–42. http://dx.doi.org/10.1080/00207170601069505.

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32

Turker, Turker, Haulk Gorgun, and Galip Cansever. "Stabilization of uncoupled PVTOL aircraft based on a Lyapunov function." Transactions of the Institute of Measurement and Control 34, no. 5 (October 10, 2011): 578–84. http://dx.doi.org/10.1177/0142331211408638.

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33

Notarstefano, Giuseppe, John Hauser, and Ruggero Frezza. "COMPUTING FEASIBLE TRAJECTORIES FOR CONTROL-CONSTRAINED SYSTEMS: THE PVTOL EXAMPLE." IFAC Proceedings Volumes 40, no. 12 (2007): 354–59. http://dx.doi.org/10.3182/20070822-3-za-2920.00059.

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34

Mazenc, F., S. Mondié, and R. Francisco. "STABILIZATION OF A PVTOL AIRCRAFT WITH DELAY IN THE INPUT." IFAC Proceedings Volumes 38, no. 1 (2005): 31–36. http://dx.doi.org/10.3182/20050703-6-cz-1902.01966.

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35

Kuga, Soki, Hisakazu Nakamura, and Ysuyuki Satoh. "Adaptive control for the PVTOL system via Minimum Projection Method." IFAC-PapersOnLine 48, no. 11 (2015): 216–21. http://dx.doi.org/10.1016/j.ifacol.2015.09.186.

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36

Xin, Ming, and Hejia Pan. "Robust Control of PVTOL Aircraft with a Nonlinear Optimal Control Solution." Journal of Aerospace Engineering 23, no. 4 (October 2010): 265–75. http://dx.doi.org/10.1061/(asce)as.1943-5525.0000039.

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37

Zheng, Xiaolong, and Xuebo Yang. "Improved adaptive NN backstepping control design for a perturbed PVTOL aircraft." Neurocomputing 410 (October 2020): 51–60. http://dx.doi.org/10.1016/j.neucom.2020.05.065.

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38

Aguilar-Ibanez, Carlos, Miguel S. Suarez-Castanon, Jesus Meda-Campaña, Octavio Gutierrez-Frias, Carlos Merlo-Zapata, and Jesus A. Martinez-Castro. "A Simple Approach to Regulate a PVTOL System Using Matching Conditions." Journal of Intelligent & Robotic Systems 98, no. 2 (September 6, 2019): 511–24. http://dx.doi.org/10.1007/s10846-019-01087-x.

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39

Wu, Sun-Li, Pang-Chia Chen, Chih-Hua Hsu, and Koan-Yuh Chang. "Gain-scheduled control of PVTOL aircraft dynamics with parameter-dependent disturbance." Journal of the Franklin Institute 345, no. 8 (November 2008): 906–25. http://dx.doi.org/10.1016/j.jfranklin.2008.05.006.

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40

Lozano, R., P. Castillo, and A. Dzul. "Global Stabilization of the PVTOL: Real-Time Application to A Mini-Aircraft." International Journal of Control 77, no. 8 (May 20, 2004): 735–40. http://dx.doi.org/10.1080/00207170410001713033.

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41

Lara, David, Marco Panduro, Gerardo Romero, Efrain Alcorta, and Romeo Betancourt. "Robust Control Design Techniques Using Differential Evolution Algorithms Applied to the PVTOL." Intelligent Automation & Soft Computing 20, no. 3 (April 10, 2014): 451–66. http://dx.doi.org/10.1080/10798587.2014.907966.

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42

Lozano, Rogelio, Pedro Castillo, and Alejandro Dzul. "Global Stabilization of the PVTOL: Real-Time Application to a Mini-Aircraft." IFAC Proceedings Volumes 37, no. 21 (December 2004): 235–40. http://dx.doi.org/10.1016/s1474-6670(17)30474-3.

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43

Gandolfo, D., C. Rosales, D. Patiño, G. Scaglia, and M. Jordan. "Trajectory Tracking Control of a PVTOL Aircraft Based on Linear Algebra Theory." Asian Journal of Control 16, no. 6 (December 11, 2013): 1849–58. http://dx.doi.org/10.1002/asjc.819.

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44

Zhu, Bo, Xinhua Wang, and Kai-Yuan Cai. "Approximate trajectory tracking of input-disturbed PVTOL aircraft with delayed attitude measurements." International Journal of Robust and Nonlinear Control 20, no. 14 (August 19, 2010): 1610–21. http://dx.doi.org/10.1002/rnc.1536.

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45

Zavala-Río, A., I. Fantoni, S. Salazar, and R. Lozano. "ROBUST GLOBAL STABILIZING BOUNDED CONTROL OF A PVTOL AIRCRAFT WITH LATERAL COUPLING." IFAC Proceedings Volumes 38, no. 1 (2005): 977–82. http://dx.doi.org/10.3182/20050703-6-cz-1902.00819.

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46

Merlo-Zapata, Carlos Alejandro, Carlos Aguilar-Ibanez, Octavio Gutiérrez-Frías, Mayra Antonio-Cruz, Celso Márquez-Sánchez, and Miguel S. Suarez-Castanon. "A Robust Control Scheme for a PVTOL System Subject to Wind Disturbances." Complexity 2020 (September 1, 2020): 1–11. http://dx.doi.org/10.1155/2020/3510396.

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In this study, a control scheme that allows performing height position regulation and stabilization for an unmanned planar vertical take-off and landing aerial vehicle, in the presence of disturbance due to wind, is presented. To this end, the backstepping procedure together with nested saturation function method is used. Firstly, a convenient change of coordinates in the aerial vehicle model is carried out to dissociate the rotational dynamics from the translational one. Secondly, the backstepping procedure is applied to obtain the height position controller, allowing the reduction of the system and expressing it as an integrator chain with nonlinear disturbance. Therefore, the nested saturation function method is used to obtain a stabilizing controller for the horizontal position and roll angle. The corresponding stability analysis is conducted via the Lyapunov second method. In addition, to estimate the disturbance due to wind, an extended state observer is used. The effectiveness of the proposed control scheme is assessed through numerical simulations, from which convincing results have been obtained.

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47

Aguilar-Ibáñez, Carlos, J. Humberto Sossa-Azuela, and Miguel S. Suarez-Castanon. "A backstepping-based procedure with saturation functions to control the PVTOL system." Nonlinear Dynamics 83, no. 3 (September 30, 2015): 1247–57. http://dx.doi.org/10.1007/s11071-015-2400-y.

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48

KUGA, Soki, Yasuyuki SATOH, Hisakazu NAKAMURA, and Yuh YAMASHITA. "Static State Feedback Control System Design for PVTOL System via Minimum Projection Method." Transactions of the Society of Instrument and Control Engineers 51, no. 5 (2015): 361–70. http://dx.doi.org/10.9746/sicetr.51.361.

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49

López-Araujo, D. J., A. Zavala-Río, I. Fantoni, S. Salazar, and R. Lozano. "Global stabilisation of the PVTOL aircraft with lateral force coupling and bounded inputs." International Journal of Control 83, no. 7 (July 2010): 1427–41. http://dx.doi.org/10.1080/00207171003758778.

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50

Wang, Xinhua, Geng Yang, and Wenli Xu. "Output tracking for nonlinear non-minimum phase systems and application to PVTOL aircraft." International Journal of Systems Science 39, no. 1 (January 2008): 29–42. http://dx.doi.org/10.1080/00207720701621991.

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