Elio Usai

6.9k total citations · 1 hit paper
227 papers, 5.0k citations indexed

About

Elio Usai is a scholar working on Control and Systems Engineering, Electrical and Electronic Engineering and Computer Networks and Communications. According to data from OpenAlex, Elio Usai has authored 227 papers receiving a total of 5.0k indexed citations (citations by other indexed papers that have themselves been cited), including 140 papers in Control and Systems Engineering, 32 papers in Electrical and Electronic Engineering and 30 papers in Computer Networks and Communications. Recurrent topics in Elio Usai's work include Adaptive Control of Nonlinear Systems (99 papers), Stability and Control of Uncertain Systems (26 papers) and Iterative Learning Control Systems (25 papers). Elio Usai is often cited by papers focused on Adaptive Control of Nonlinear Systems (99 papers), Stability and Control of Uncertain Systems (26 papers) and Iterative Learning Control Systems (25 papers). Elio Usai collaborates with scholars based in Italy, Mexico and Serbia. Elio Usai's co-authors include Alessandro Pisano, G. Bartolini, Antonella Ferrara, Alessandro Pilloni, Elisabetta Punta, Leonid Fridman, Yury Orlov, Igor Boiko, Mauro Franceschelli and Milan R. Rapaić and has published in prestigious journals such as IEEE Transactions on Automatic Control, IEEE Transactions on Industrial Electronics and Automatica.

In The Last Decade

Elio Usai

213 papers receiving 4.8k citations

Hit Papers

A survey of applications of second-order sliding mode con... 2003 2026 2010 2018 2003 100 200 300 400 500
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. A survey of applications of second-order sliding mode control to mechanical systems
    2003 552 citations G. Bartolini, Alessandro Pisano et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Elio Usai Italy 34 3.9k 990 830 597 455 227 5.0k
Youyi Wang Singapore 36 3.5k 0.9× 2.0k 2.0× 536 0.6× 1.2k 2.1× 657 1.4× 200 5.3k
Xing‐Gang Yan United Kingdom 40 4.0k 1.0× 704 0.7× 475 0.6× 861 1.4× 235 0.5× 207 4.8k
Juntao Fei China 40 4.0k 1.0× 2.2k 2.2× 500 0.6× 612 1.0× 202 0.4× 297 5.6k
Jaime A. Moreno Mexico 36 6.6k 1.7× 1.2k 1.2× 799 1.0× 796 1.3× 387 0.9× 332 8.0k
Haisheng Yu China 35 3.3k 0.8× 1.2k 1.2× 732 0.9× 1.0k 1.7× 416 0.9× 186 4.5k
Jingqing Han China 5 4.5k 1.2× 1.2k 1.2× 1.1k 1.3× 396 0.7× 333 0.7× 9 5.3k
Sarah K. Spurgeon United Kingdom 40 6.0k 1.6× 547 0.6× 807 1.0× 784 1.3× 471 1.0× 324 7.0k
Xuemei Ren China 35 3.5k 0.9× 596 0.6× 1.0k 1.3× 561 0.9× 290 0.6× 217 4.5k
Zhiqiang Gao United States 45 6.3k 1.6× 2.2k 2.2× 1.5k 1.8× 425 0.7× 594 1.3× 209 7.9k
Jürgen Guldner Germany 9 2.6k 0.7× 1.1k 1.1× 584 0.7× 215 0.4× 404 0.9× 13 3.3k

Countries citing papers authored by Elio Usai

Since Specialization
Citations

This map shows the geographic impact of Elio Usai's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Elio Usai with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Elio Usai more than expected).

Fields of papers citing papers by Elio Usai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Elio Usai. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Elio Usai. The network helps show where Elio Usai may publish in the future.

Co-authorship network of co-authors of Elio Usai

This figure shows the co-authorship network connecting the top 25 collaborators of Elio Usai. A scholar is included among the top collaborators of Elio Usai based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Elio Usai. Elio Usai is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Aldana‐López, Rodrigo, David Gómez‐Gutiérrez, Elio Usai, & Hernan Haimovich. (2025). Exact Leader Estimation: A New Approach for Distributed Differentiation. International Journal of Robust and Nonlinear Control. 35(10). 4265–4278.
2.
Pilloni, Alessandro, Alessandro Pisano, & Elio Usai. (2024). Semiglobal Fixed-Time State Estimation and Unknown Input Reconstruction via First-Order Sliding-Mode Observers With Delay. IEEE Transactions on Automatic Control. 69(11). 7839–7846.
3.
Koch, Stefan, Alessandro Pilloni, Alessandro Pisano, & Elio Usai. (2022). Sliding-Mode Boundary Control of an In-Line Heating System Governed by Coupled PDE/ODE Dynamics. IEEE Transactions on Control Systems Technology. 30(6). 2689–2697. 3 indexed citations
4.
Pilloni, Alessandro, et al.. (2021). Robust Distributed Secondary Voltage Restoration Control of AC Microgrids under Multiple Communication Delays. Energies. 14(4). 1165–1165. 8 indexed citations
5.
Pilloni, Alessandro, Mauro Franceschelli, Alessandro Pisano, & Elio Usai. (2020). Sliding Mode-Based Robustification of Consensus and Distributed Optimization Control Protocols. IEEE Transactions on Automatic Control. 66(3). 1207–1214. 22 indexed citations
6.
Pisano, Alessandro, Yury Orlov, Alessandro Pilloni, & Elio Usai. (2019). Combined Backstepping/Second-Order Sliding-Mode Boundary Stabilization of an Unstable Reaction–Diffusion Process. IEEE Control Systems Letters. 4(2). 391–396. 5 indexed citations
7.
Pisano, Alessandro, et al.. (2019). Adaptive unit-vector law with time-varying gain for finite-time parameter estimation in LTI systems. Applied Numerical Mathematics. 155. 16–28. 3 indexed citations
8.
Pisano, Alessandro, et al.. (2002). Robust Control Of The Contact Force Of An Asymmetric Pantograph. Annual Conference on Computers. 61. 2 indexed citations
9.
Bartolini, G., Alessandro Pisano, & Elio Usai. (2000). First and second derivative estimation by sliding mode technique. 4(2). 167–176. 51 indexed citations
10.
Bartolini, G., Arie Levant, Elio Usai, & Alessandro Pisano. (1999). 2-Sliding Mode with Adaptation *. 2421–2429. 25 indexed citations
11.
Bartolini, G., Alessandro Pisano, & Elio Usai. (1999). Variable structure control of nonlinear sampled data systems by second order sliding modes. Lecture notes in control and information sciences. 43–67. 7 indexed citations
12.
Giua, Alessandro & Elio Usai. (1998). Modelling Hybrid Systems by High-Level Petri Nets. UNICA IRIS Institutional Research Information System (University of Cagliari). 2 indexed citations
13.
Bartolini, G., Antonella Ferrara, Alessandro Pisano, & Elio Usai. (1998). Adaptive reduction of the control effort in chattering-free sliding-mode control of uncertain nonlinear systems. International Journal of Applied Mathematics and Computer Science. 8(1). 51–71. 25 indexed citations
14.
Bartolini, G., Antonella Ferrara, Elio Usai, & Vadim Utkin. (1998). Second Order Chattering-Free Sliding Mode Control for some Classes of Multi-Input Uncertain Nonlinear Systems. 337–342. 4 indexed citations
15.
Sirigu, P., Maria Teresa Perra, Cristina Maxia, & Elio Usai. (1997). IgM and IgG in the Human Male Genital TRACT. Archives of Andrology. 39(1). 45–53. 1 indexed citations
16.
Porru, Daniele, et al.. (1997). Urinary tract dysfunction in multiple sclerosis: is there a relation with disease-related parameters?. Spinal Cord. 35(1). 33–36. 30 indexed citations
17.
Sirigu, P., et al.. (1991). Histochemistry of Human Urethral Glands. Archives of Andrology. 26(1). 43–51. 3 indexed citations
18.
Scarpa, Roberto Mario, et al.. (1988). Percutaneous Drainage of Utricular Cyst under Ultrasound Guidance. British Journal of Urology. 62(4). 385–386. 3 indexed citations
19.
Cossu, M, et al.. (1988). Histochemistry of L-Leucyl β-Naphtylamidase Activity in Genital Tract of Men. Archives of Andrology. 21(3). 163–168. 3 indexed citations
20.
Cossu, M, et al.. (1983). Fine Structure of the Epithelium of the Human Ejaculatory Duct. Cells Tissues Organs. 116(3). 225–233. 10 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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