Showing 1,421 - 1,440 results of 1,944 for search '"pi"', query time: 0.06s Refine Results
  1. 1421

    Dynamic Modeling and Control of Electromechanical Coupling for Mechanical Elastic Energy Storage System by Yang Yu, Zengqiang Mi

    Published 2013-01-01
    “…The simulation results in three different cases show that the proposed nonlinear dynamic model of MEES system is correct; the designed algorithm has a better control performance in contrast with the conventional PI control.…”
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  2. 1422

    Polarizabilities from kaon Compton scattering by Dominik Stamen, Jan Luca Dammann, Yannis Korte, Bastian Kubis

    Published 2024-12-01
    “…We propose a method to extend the energy range serviceable for this purpose by reconstructing the $$K^*(892)$$ K ∗ ( 892 ) contribution model-independently from its $$K\pi $$ K π intermediate state, using dispersion theory. …”
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  3. 1423

    The Kronecker Summation Method for Robust Stabilization Applied to a Chemical Reactor by Radek Matušů, Jana Závacká, Roman Prokop, Monika Bakošová

    Published 2011-01-01
    “…The paper focuses on robust stabilization where the suitable parameters of a simple continuous-time PI controller are determined through a combination of the Kronecker summation method, sixteen plant theorem, and an algebraic approach to control design in the ring of proper and stable rational functions. …”
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  4. 1424

    Persons in Context. A Model to Represent Observations and Reconstructions of Historical Persons in Linked Data by Pieter E. Woltjer, Ivo Zandhuis, Bob Coret, Mark Lindeman, Jeroen D. Balkenende, Richard L. Zijdeman, Rick J. Mourits

    Published 2024-10-01
    “…Persons in Context, or PiCo, presents a data model for historical person records within the Resource Description Framework (RDF). …”
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    Article
  5. 1425

    Set-Membership Estimation for Complex Networks Under FlexRay Protocol Based on the Proportional-Integral Observer With Probability Constraint by Chaochen Wang, Miaomiao Shi

    Published 2025-01-01
    “…It is the primary objective to provide a proportional-integral (PI) estimation approach with the capability of driving all estimation errors at individual nodes into a desired region with a predetermined probability. …”
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  6. 1426

    Utility of σ and π-Acceptors for the Spectrophotometric Determination of Gemifloxacin Mesylate in Pharmaceutical Formulations by Marothu Vamsi Krishna, Dannana Gowri Sankar

    Published 2008-01-01
    “…The methods are based on the charge transfer complexation reaction of the drug as n-electron donor with sigma (σ)-acceptor iodine, and the pi (π)-acceptors 2, 3-dichloro-5, 6-dicyano-p-benzoquinone (DDQ)-7,7,8,8-tetra cyanoquinodimethane (TCNQ) and tetracyanoethylene (TCNE). …”
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  7. 1427

    Application of Gap Metric to LADRC Design in Multilinear Model of SDR by Hongfu Wang, Qinghua Zeng, An Wang, Zongyu Zhang

    Published 2022-01-01
    “…Finally, through the comparison of simulation with adaptive PI controller and model-assisted LADRC (M-LADRC), the results have shown that the control method designed in this paper can obtain satisfactory performance and has a good engineering application prospect.…”
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  8. 1428
  9. 1429

    Isospin-breaking contribution to the model-independent axion-photon-photon coupling in U(3) chiral theory by Rui Gao, Jin Hao, Chun-Gui Duan, Zhi-Hui Guo, J. A. Oller, Hai-Qing Zhou

    Published 2025-01-01
    “…Abstract We pursue the calculation of the model-independent component of the axion-photon-photon coupling in the U(3) chiral perturbation theory up to next-to-leading order, with the emphasis on the isospin breaking effect. The mixing of the $$\pi ^0$$ π 0 - $$\eta $$ η - $$\eta '$$ η ′ -axion system is revised as well by working out the complete linear isospin-breaking terms. …”
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  10. 1430
  11. 1431

    Surgical Outcomes and Sociodemographic Disparities Across All Races: An ACS-NSQIP and NHIS Multi-Institutional Analysis of Over 7.5 Million Patients by Dany Y. Matar, BA, Samuel Knoedler, Anthony Y. Matar, BS, Sarah Friedrich, PhD, Harriet Kiwanuka, MD, Ryoko Hamaguchi, MD, Carla M. Hamwi, BS, Gabriel Hundeshagen, MD, MMS, Valentin Haug, MD, Ulrich Kneser, MD, PhD, Keisha Ray, PhD, Dennis P. Orgill, MD, PhD, Adriana C. Panayi, MD, PhD

    Published 2024-09-01
    “…Among 7,504,734 American College of Surgeons National Surgical Improvement Database patients specifying race, 83.8% were White (WT), 11.8% Black or African American (B/AA), 3.3% Asian (AS), 0.7% American Indian or Alaska Native (AI/AN), 0.4% Native Hawaiian or Pacific Islander (NH/PI), 7.3% Hispanic. Reoperation trends reveal favorable outcomes for WT, AS, and NH/PI patients compared with B/AA and AI/AN patients. …”
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  12. 1432
  13. 1433
  14. 1434

    Efficacy of Andrographis paniculata, Psidium guajava and Piper betle as Prevention on Motile Aeromonad Septicaemia Infection in African Catfish (Clarias sp.) by D. Wahjuningrum, . Tarono, S.L. Angka

    Published 2007-07-01
    “…The dosage of herbal medicine per 100 gram of diet was PI (1.0 g sambiloto, 0.75 g daun jambu and 0.25 g daun sirih), PII (1.0 g sambiloto,  0.50 g daun jambu,  0.50 g daun sirih), and PIII (1.0 g sambiloto, 0.25 g daun jambu, and 0.75 g daun sirih).  …”
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  15. 1435

    Development and optimization of a new competitive ELISA using recombinant (rPSA D15 and rCag11) antigens for the detection of Helicobacter pylori infection. by Biniam Moges Eskeziyaw, Naomi Maina, Rebecca Waihenya, Matthew Mutinda Munyao, Tonny Teya Nyandwaro, Shingo Inoue, Samson Muuo Nzou

    Published 2025-01-01
    “…Based on the optimized conditions, novel rPSA D15-cELISA and rCag11-cELISA assays with a respective optimum cut-off value of 20.80% PI and 24.16% PI were developed. According to the receiver operating characteristic (ROC) curve analysis on the diagnostic performance of the newly developed rPSA D15-cELISA and rCag11-cELISA assays using 60 clinical H. pylori stool samples, the rPSA D15-cELISA test assay established an optimum cut-off point of 20.80% with sensitivity and specificity of 90% (95% confidence of interval (CI) 74.38-96.54), Area under the curve (AUC) of 0.9556 (95% CI = 0.896-1.000) and P value <0.0001. …”
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  16. 1436

    Deep Brain Stimulation in Parkinson’s Disease: New and Emerging Targets for Refractory Motor and Nonmotor Symptoms by Dustin Anderson, Grayson Beecher, Fang Ba

    Published 2017-01-01
    “…Parkinson’s disease (PD) is a progressive neurodegenerative condition characterized by bradykinesia, tremor, rigidity, and postural instability (PI), in addition to numerous nonmotor manifestations. …”
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  17. 1437

    Intelligent Control of a Photovoltaic Generator for Charging and Discharging Battery Using Adaptive Neuro-Fuzzy Inference System by El Hadji Mbaye Ndiaye, Alphousseyni Ndiaye, Mactar Faye, Samba Gueye

    Published 2020-01-01
    “…A regulation of the DC bus voltage is also carried out by means of a PI corrector for a good supply of the load. The simulation results under MATLAB/Simulink show that the method proposed in this work allows the PV system to function normally by charging and discharging the battery whatever the weather conditions.…”
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  18. 1438

    Os discursos protetivos e punitivos acerca dos adolescentes em medida de internação no Brasil by Denise Maria Leal, João Paulo Macedo

    Published 2019-01-01
    “…El presente artículo tiene como objetivo aprehender los sentidos de protección integral en la atención al adolescente que cumple la medida de internación en el Centro Educativo Masculino (CEM) en Teresina-PI, Brasil. Esta investigación fue desarrollada a través de una entrevista semiestructurada con ocho trabajadores y el análisis documental del Plan Individual de Atención (PIA), del Informe Técnico Evaluativo (ITE), de las fichas de evolución del caso, de la sentencia, del informe de evaluación sobre in locus y de la medida socioeducativa pública. …”
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  19. 1439

    Polydatin Protects Bone Marrow Stem Cells against Oxidative Injury: Involvement of Nrf 2/ARE Pathways by Meihui Chen, Yu Hou, Dingkun Lin

    Published 2016-01-01
    “…Hochest 33258, Annexin V-PI, and Western blot assay showed H2O2-induced apoptosis in BMSCs, which was attenuated by polydatin. …”
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  20. 1440

    Transoesophageal Echocardiography for Monitoring Liver Surgery: Data from a Pilot Study by Filipe Pissarra, Antonio Oliveira, Paulo Marcelino

    Published 2012-01-01
    “…The comparison between 39 CO paired measurements obtained by TEE and PiCCO2 revealed a statistically significant correlation (P<0.001, r=0.83). …”
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