Results 81 to 90 of about 287,878 (297)
Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges
Advanced Functional Materials, EarlyView.Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley +1 more source
Promet (Zagreb), 2013 The problem of controlling a string of vehicles moving in one dimension is considered so that they all follow a lead vehicle with a constant spacing between successive vehicles.
Ali Ghasemi
doaj +1 more source
On the stability of string theory vacua
Journal of High Energy Physics, 2022 Vacuum compactifications may suffer from instabilities under small perturbations or tunnel effects; both are difficult to analyze. In this paper we consider the issue from a higher-dimensional perspective.
Suvendu Giri +2 more
doaj +1 more source
The Dirac Sea Contribution To The Energy Of An Electroweak String [PDF]
, 1999 We present a systematic determination of the order hbar fermionic energy shift when an electroweak string is perturbed. We show that the combined effect of zero modes, bound states and continuum states is to lower the total fermionic ground state energy ...
Achucarro +29 more
core +3 more sources
Advanced Functional Materials, EarlyView.A swelling‐programmed micropatterned hydrogel guides adherent cells through a controlled transition from cell–matrix anchoring to cadherin‐mediated cell–cell compaction, enabling rapid assembly of high‐viability spheroids with defined size and morphology.
Han Gyeol Nam +8 more
wiley +1 more source
Spacing Policies for Adaptive Cruise Control: A Survey
IEEE Access, 2020 Adaptive cruise control (ACC) systems are designed to provide longitudinal assistance for drivers to enhance safety and reduce workload. As the core of all ACC control algorithms, the spacing policy plays a crucial role in various aspects.
Cunxue Wu +5 more
doaj +1 more source
Influence of bit size on stability bottom drill column balance when drilling a horizontal well
Известия высших учебных заведений: Нефть и газ, 2021 The article raises the question that if you change the bit type, the "critical length" of the lower part of the drill string change too. For the first time, the issue of the stability of the lower part of the drill string when drilling a horizontal ...
V. G. Griguletsky, A. B. Kuznetsov
doaj +1 more source
Coupled currents in cosmic strings [PDF]
, 2009 We first examine the microstructure of a cosmic string endowed with two simple Abelian currents. This microstructure depends on two state parameters. We then provide the macroscopic description of such a string and show that it depends on an additional ...
B. Carter +9 more
core +2 more sources
Advanced Functional Materials, EarlyView.When hydrated zinc ions are deposited onto Cu substrates at practical current densities, the modified Cu enables simultaneously compact zinc growth and suppressed hydrogen evolution. This regulatory effect originates from the superior adsorption of the modified Cu interface, which enhances zincophilicity and the hydrogen desorption barrier, thereby ...
Zhe Zhu +8 more
wiley +1 more source
IEEE AccessEnsuring string stability in adaptive cruise control (ACC) systems is essential to prevent disturbance amplification in vehicle platoons. Conventional speed-dependent spacing policies, such as the constant time-gap (CTG) policy, are widely adopted to ...
Kbrom Lbsu Gdey, Woo Young Choi
doaj +1 more source