High-strength materials that are able to resist impact usually have high hardness and high elastic moduli, facilitating also high speeds of elastic waves (sound), so that resulting shock waves quickly dissipate impact energy. Based on theoretical considerations, there is a… Read More
Prof. Alexander Konstantinovich Zaitsev (1873 – 1951) was the founder and a long-term head of the friction and lubrication laboratory (1903) at the St. Petersburg Polytechnic Institute (today the Polytechnic University) as well as of the Department of Applied Mechanics… Read More
This week we, together with a team of chemists from the ITMO University lead by Prof. Е. Skorb, visited Dr. Fedorets’ lab in Tyumen University and performed some experiments using levitating microdroplet clusters as chemical reactors. First, a substance “A”… Read More
The levitating microdroplet cluster is a new phenomenon, which was discovered for the first time in 2004 by Alexander Fedorets. The droplet cluster is typologically similar to self-assembled colloidal crystals, but it has some features absent from colloidal clystals. Thus,… Read More
The website Research.com has published its ratings of Top Universities and Top Scientists, based mostly on citation. The Mechanical Engineering in the UWM is the number 91 in the USA, and the number 338 in the world. University Rankings/Mechanical and… Read More
Scaling is a fascinating phenomenon. Another work on scaling (this time in biochemistry) was presented at the ITMO University InfoChemistry Day in St. Petersburg on May 29, 2022. S. Shityakov, E. Skorb, M. Nosonovsky, “Topological bio-scaling analysis as a universal… Read More
There are many interesting and unusual effects related to the levitating droplet cluster. Most of these have been discovered very recently. Besides the regular (hexagonally arranged) cluster, there is a chain cluster including the branched cluster, small clusters, and the… Read More
Scaling in physical chemistry is a fascinating issue since it combines temporal, spatial, and temperature domains. For a random walk or Brownian motion (the Einstein-Smoluchowski diffusion), the distance is proportional to power 1/2 of the path, R ~ sqr(L). There… Read More
The first in the world PhD dissertation in Triboinformatics was defended today! Congratulations to Dr. Md Syam Hasan! The title of the thesis is “TRIBOINFORMATIC APPROACHES FOR SURFACE CHARACTERIZATION: TRIBOLOGICAL AND WETTING PROPERTIES” Tribology is the study of surface roughness,… Read More
I just came across an interesting publication in the Quanta magazine called “Mathematicians Coax Fluid Equations Into Nonphysical Solutions” by Leila Sloman. The article states that a new paper by D. Albritton, E. Brué, and M. Colombo “set to appear… Read More
“When Bubbles Are Not Spherical: Artificial Intelligence Analysis of Ultrasonic Cavitation Bubbles in Solutions of Varying Concentrations” by Ilya Korolev, Timur A. Aliev, Tetiana Orlova, Sviatlana A. Ulasevich*, Michael Nosonovsky*, and Ekaterina V. Skorb, J. Phys. Chem. B 2022, 126,… Read More
1) M Zhukov, MS Hasan, P Nesterov, M Sabbouh, O Burdulenko, E V. Skorb, and M Nosonovsky* 2022 “Topological Data Analysis of Nanoscale Roughness in Brass Samples” ACS Appl. Mater. Interfaces 2021, https://doi.org/10.1021/acsami.1c20694 Rough surfaces possess complex topographies, which cannot… Read More
“ITMO Fellowship Stories: Prof. Michael Nosonovsky on Triboinformatics, Working Across an Ocean, and Latin Dances” https://news.itmo.ru/en/science/life_science/news/12307/ “First of all, tribology is the study of friction and interaction of solid surfaces. It’s an engineering discipline that also has a fundamental significance,… Read More
1) A new paper got accepted: O. Tolochko, I. Kobykhno, S. Khashirova, A. Zhansitov, A. Breki, M. Nosonovsky* “Friction and wear of polyetheretherketone (PEEK) samples with different melt flow indices” Journal of Tribology, 2021, https://doi.org/10.1115/1.4053092 2) Some Russian press coverage… Read More
I am not a big fan of measuring scientific accomplishments by citation. Your results, found in your publications, should speak for themselves. The problem, however, is that many people would not want to read your papers and discuss your results…. Read More
The mathematical method of separation of motions represents the effect of fast high-frequency oscillations by an effective averaged force or potential. Ultrasound acoustic vibrations are an example of such rapid oscillations leading to cavitation in water due to the gas… Read More
Our research in Triboinformatics, both at UWM and at ITMO, has covered two main directions: 1. Using machine-learing methods to establish correlations between tribological properties (friction and wear) and composition of composite materials. * MS Hasan, A Kordijazi, PK Rohatgi,… Read More
Our new triboinformatics paper just got accepted: Md Syam Hasan and Michael Nosonovsky 2021 “Topological data analysis for friction modeling” Europhysics Letters, DOI: https://doi.org/10.1209/0295-5075/ac2655 Abstract – Dry sliding friction is a complex but ubiquitous phenomenon. Experimental studies of friction produce… Read More
Prof. Nosonovsky was invited to serve as an expert in the investigation of the Russian vessel “Kapitan Lobanov” marine incident. Small fishing trawler (refrigerator) “Kapitan Lobanov” capsized and partially sank in the water area of the bay near Kaliningrad on… Read More
Dr. Michael Nosonovsky has won the competition for the Visiting Research Professor fellowship at the Infochemistry Scientific Center at ITMO University in Russia. He will spend about 4 months yearly at ITMO working on new area of Triboinformatics and research… Read More
Viruses do not maintain homeostasis and depend on the environment. They prefer aqueous environments because the information life-cycle of a virus is dominated by entropic hydrophobic forces that are needed for self-assembly. This makes viruses similar to macroscale objects, such… Read More
Symmetry and orderliness of two-dimensional (2D) levitating microdroplet clusters are quantified with the Voronoi entropy (VE) and the continuous symmetry measure (CSM). The time evolution of both VE and CSM is investigated. To compare the correlation between the two measures… Read More
1. Why viruses prefer water environment? Maybe there are reasons, which can be explained by physics, not biology. How the information cycle is related to the life cycle through the Landauer principle, which connects physics and information? Bormashenko, E.; Fedorets,… Read More
Md Syam Hasan, K. Sobolev, and M. Nosonovsky. Evaporation of droplets capable of bearing viruses airborne and on hydrophobic surfaces, J. Appl. Phys. 129, 024703 (2021); https://doi.org/10.1063/5.0023501 See also LA Dombrovsky, AA Fedorets, VY Levashov, AP Kryukov, E Bormashenko, M… Read More
Our paper on the cover of the MDPI Applied Mechanics journal A. S. Blumenthal and M. Nosonovsky 2020. Friction and Dynamics of Verge and Foliot: How the Invention of the Pendulum Made Clocks Much More Accurate Appl. Mech. 2020, 1(2),… Read More
We have submitted two presentations for the 7th World Tribology Congress 2021: Md Syam Hasan, Amir Kordijazi, Pradeep K. Rohatgi, and Michael Nosonovsky, “Tribological behavior prediction of Al/Gr composites under dry condition using machine learning methods” Md Syam Hasan, Amir… Read More
Call for papers for Special Issue of Surface Topography – Metrology and Properties (IOP journal) “Artificial Intelligence Machine Learning Applied to Surface Topography and Pattern Recognition” Call for papers Guest Editors: Dr Sasan Mahmoodi ECS, University of Southampton, UK Professor… Read More
News about the study of the droplet cluster 1. The Ring Cluster is a new type of droplet clusters, and is reported in our new paper: A A Fedorets, D Shcherbakov, L A Dombrovsky, E Bormashenko, M Nosonovsky 2020 “Impact… Read More
A special issue of Atmosphere (ISSN 2073-4433) “Levitating Droplet Clusters in Aerosol Science”. https://www.mdpi.com/journal/atmosphere/special_issues/droplet_clusters Special Issue Editors Prof. Dr. Alexander A. Fedorets Website Guest Editor Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, 625003 Tyumen, Russian Federation Interests: droplet… Read More
Prof. M. Nosonovsky was selected for the 2020 Office of Research/UWM Foundation Research Awards. Please read an article about that at the College of Engineering and Applied Science website: “In June, Michael Nosonovsky, an associate professor of mechanical engineering at… Read More
The subjects of tribology, which is defined as the study of the interaction of solid surfaces in their relative motion, are friction, wear, lubrication, surface properties, and adhesion. Since the term tribology was introduced by Peter H. Jost in 1966,… Read More
Allometry is a type of scaling in biology, which explains how various parameters (such as the metabolism rate, speed, and even the lifespan of an animal) depend on the average body mass. Ergodicity is a concept in the theory of… Read More
New review paper: Nosonovsky, M.; Roy, P. Scaling in Colloidal and Biological Networks. Entropy 2020, 22, 622. https://www.mdpi.com/1099-4300/22/6/622 First, we consider networks arising from granular and colloidal systems (small colloidal and droplet clusters) due to pairwise interaction between the particles…. Read More
Our paper about the invention of the pendulum clock mechanism: Blumenthal, A.S.; Nosonovsky, M. Friction and Dynamics of Verge and Foliot: How the Invention of the Pendulum Made Clocks Much More Accurate. Appl. Mech. 2020, 1, 111-122. https://doi.org/10.3390/applmech1020008 “The pendulum… Read More
Small droplet clusters have unusual symmetries absent from colloidal crystals and from large clusters. In our new paper, we discuss the hypothesis that the symmetries of small clusters may be related to an amazing mathematical object, the ADE-classification based on… Read More
The most common example of a successful application of biomimetics in surface science is the Lotus Effect for water-repellency and self-cleaning. Among natural leaves, the lotus (Nelumbo nucifera) leaf exhibits extreme water repellence and hydrophobic behavior. When a water droplet… Read More
Our new grant from the NSF “RAPID: Superhydrophobic and Photocatalytic Antimicrobial (SPA) Coatings” The PI: Prof. Konstantin Sobolev, coPIs: M. Nosonovsky, N. Kouklin, D. Frick. Superhydrophobicity is not only self-cleaning, but also anti-bacterial. We will investigate anti-viral properties as well… Read More
Our new paper about clusters in physics, chemistry, and biology and their relation to networks. E Bormashenko, A. A. Fedorets, M. Frenkel, L. A. Dombrovsky and M. Nosonovsky. “Clustering and self-organization in small-scale natural and artificial systems”Phil. Trans. R. Soc…. Read More
We had a number of recent papers in collaboration with the department of Materials Science & Engineering (Prof. Pradeep Rohatgi’s group) on the development of new metallic materials (alloys and nano-composites) with corrosion-resistant and water-resistant properties. I think this shows… Read More
One of the founding fathers of the Nanotechnology, Professor Charles Lieber from Harvard University, got arrested last week in Boston for his international scientific collaboration. Dr. Lieber is the Chair of the Chemistry Department at Harvard. He was awarded (together… Read More
My article in Russian, “Clifford Truesdell and P. A. Zhilin: on the Leningrad School of the Rational Mechanics” deals with ideas of one of my teachers, Prof. Pavel Zhilin (1942–2005), who being an accomplished Mechanical Engineer with expertise in both… Read More
In addition to the hexagonally ordered clusters of levitating micro-droplets, a cluster with a chain structure can exist. The first systematic observation of this new phenomenon is reported in our paper: A. A. Fedorets et al. “Self-arranged levitating droplet clusters:… Read More
Our new paper: A. A. Fedorets, N. E. Aktaev, D. N. Gabyshev, E. Bormashenko, L. A. Dombrovsky, M. Nosonovsky “Oscillatory Motion of a Droplet Cluster” J. Phys. Chem. C 2019 The work was done mostly by young Russian colleagues, Drs…. Read More
Usually I write here about papers, of which I either an author or a co-author. This paper is mostly a contribution of a graduate student, Mehran Rahmani. He took my graduate course on Vibrations and decided to do a project… Read More
A message from our college’s research support team about an NSF report on its programs supporting scientific buisnesses and the commercialization of science caused me to read other NSF reports including the NSF Office of Inspector General latest report (https://www.nsf.gov/oig/_pdf/NSF_OIG_SAR_60.pdf)…. Read More
During the 14th century, tower clocks became a common element of urban life in Europe. The “cerchi in tempra d’orïuoli” (“wheels in the movements of a clock”) and “orologio che ne chiami ne l’ora” (“a clock that calls us at… Read More
Together with our collaborators from Civil Engineering, we are designing new superhydrophobic concrete pavements and we want to ensure that the hydrophobicity (water repellency) does not mean that the pavement is slippery in terms of traction / friction. Pavements and… Read More
For many years, I have been thinking about a mystery, related to dry friction. Friction is ubiquitous, and it is a universal phenomenon; however, the law of friction is not deduced from any general principles of physics. By “the law… Read More
Our new paper “Ternary Logic of Motion to Resolve Kinematic Frictional Paradoxes” by Michael Nosonovsky and Alexander D. Breki is published in Entropy 2019, 21(6), 620; https://doi.org/10.3390/e21060620 Abstract Paradoxes of dry friction were discovered by Painlevé in 1895 and caused… Read More
Research by Prof. Nosonovsky, along with his former graduate students, Dr. Vahid Mortazavi and Mr. Rob. Morien, and co-workers, Profs. Pradeep Menezes and Pradeep Rohatgi, is featured in an article by Mary Beckman in the magazine “Tribology and Lubrication Technology”… Read More