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A Rapid and cost-effective method for detecting bacterial cells on surfaces is critical to protect public health from various aspects, including food safety, clinical hygiene, and pharmacy quality. Herein, we first established an optical…

Quantitative Methods · Quantitative Biology 2024-03-13 Yuzhen Zhang , Zili Gao , Lili He

The term bacteriophage means killer or eater of bacteria. They were initially discovered by F.W. Twort and later on, Felix d'Herelle unveiled them to the world in 1910. Phage therapy has arisen as a favorable option to conventional…

Biocomputing systems based on engineered bacteria can lead to novel tools for environmental monitoring and detection of metabolic diseases. In this paper, we propose a Bacterial Molecular Computing on a Chip (BMCoC) using microfluidic and…

We probe non-equilibrium properties of an active bacterial bath through measurements of correlations of passive tracer particles and the response function of a driven, optically trapped tracer. These measurements demonstrate violation of…

Soft Condensed Matter · Physics 2009-11-13 D. T. N. Chen , A. W. C. Lau , L. A. Hough , M. F. Islam , M. Goulian , T. C. Lubensky , A. G. Yodh

High impedance faults (HIFs) in distribution grids may cause wildfires and threaten human lives. Conventional protection relays at substations fail to detect more than 10\% HIFs since over-currents are low and the signatures of HIFs are…

Signal Processing · Electrical Eng. & Systems 2021-03-17 Wenting Li , Deepjyoti Deka

A protein undergoes conformational dynamics with multiple time scales, which results in fluctuating enzyme activities. Recent studies in single molecule enzymology have observe this "age-old" dynamic disorder phenomenon directly. However,…

Biomolecules · Quantitative Biology 2009-11-10 Zhanghan Wu , Vlad Elgart , Hong Qian , Jianhua Xing

Accurate and quick identification of high-impedance faults is critical for the reliable operation of distribution systems. Unlike other faults in power grids, HIFs are very difficult to detect by conventional overcurrent relays due to the…

Systems and Control · Electrical Eng. & Systems 2023-11-28 Yuqi Zhou , Yuqing Dong , Rui Yang

We present two algorithms to identify and flag radio frequency interference (RFI) in radio interferometric imaging data. The first algorithm utilizes the redundancy of visibilities inside a UV cell in the visibility plane to identify…

Instrumentation and Methods for Astrophysics · Physics 2018-06-27 Srikrishna Sekhar , Ramana Athreya

We show that studying of low-frequency internal friction (LFIF) of solid samples at low temperatures allows determining the presence of various gases absorbed, for some reasons, in pores and caverns of the solids. The gases come over to a…

Materials Science · Physics 2016-07-20 A. I. Erenburg , A. Yu. Zakharov , A. V. Leont'eva , A. Yu. Prokhorov

In this Letter, we propose and experimentally demonstrate a simple method to provide additional in-formation by conductivity measurements of soils. The AC electrical conductance of the soil is measured while it is exposed to a periodic…

General Physics · Physics 2007-05-23 Laszlo B. Kish , Cristine L. S. Morgan , Andrea Sz. Kishne

A novel algorithm for the ultrashort laser pulse characterization method of interferometric frequency-resolved optical gating (iFROG) is presented. Based on a genetic method, namely differential evolution, the algorithm can exploit all…

Optics · Physics 2017-10-25 Janne Hyyti , Esmerando Escoto , Günter Steinmeyer

A fundamental step in the race to design a rapid diagnostic test for antimicrobial resistance is the separation of bacteria from their matrix. Many recent studies have been focused on the development of systems capable of separating and…

Biological Physics · Physics 2021-11-01 Vincenzo Ierardi

Mesoscopic active systems exhibit various unique behaviours - absent in passive systems - due to the forces generated by the corresponding constituents by converting their available free energies. However, estimating these forces - which…

Editing of radio interferometer data, a process commonly known as ``flagging'', can be laborious and time-consuming. One quickly tends to flag more data than actually required, sacrificing sensitivity and image fidelity in the process. I…

Astrophysics · Physics 2009-11-11 E. Middelberg

We study fault identification in discrete-time nonlinear systems subject to additive Gaussian white noise. We introduce a Bayesian framework that explicitly accounts for unmodeled faults under reasonable assumptions. Our approach hinges on…

Systems and Control · Electrical Eng. & Systems 2025-09-08 Chun-Wei Kong , Jay McMahon , Morteza Lahijanian

VoIP applications are emerging today as an important component in business and communication industry. In this paper, we address the intrusion detection and prevention in VoIP networks and describe how a conceptual solution based on the…

Networking and Internet Architecture · Computer Science 2007-05-23 Mohamed El Baker Nassar , Radu State , Olivier Festor

Detection of level shifts in a noisy signal, or trend break detection, is a problem that appears in several research fields, from biophysics to optics and economics. Although many algorithms have been developed to deal with such problem,…

Signal Processing · Electrical Eng. & Systems 2019-02-19 Felipe Calliari , Gustavo C. Amaral , Michael Lunglmayr

This paper proposes an accurate High Impedance Fault (HIF) detection and isolation scheme in a power distribution network. The proposed schemes utilize the data available from voltage and current sensors. The technique employs multiple…

Systems and Control · Electrical Eng. & Systems 2019-09-25 Muhammad Sarwar , Faisal Mehmood , Muhammad Abid , Abdul Qayyum Khan , Sufi Tabassum Gul , Adil Sarwar Khan

This paper proposes a method of identifying single line outages in power systems based on phasor measurement unit (PMU) measurements and ac power flow models. In addition to the main identification algorithm, a rejection filter is…

Systems and Control · Electrical Eng. & Systems 2020-11-20 Zhen Dai , Joseph Euzebe Tate

A widely used method to measure the bending rigidity of bilayer membranes is fluctuation spectroscopy, which analyses the thermally-driven membrane undulations of giant unilamellar vesicles recorded with either phase-contrast or confocal…

Biological Physics · Physics 2020-09-21 Hammad A. Faizi , Cody J. Reeves , Vasil N. Georgiev , Petia M. Vlahovska , Rumiana Dimova