Results 91 to 100 of about 3,219,487 (379)

Recent development of combined heat transfer performance for engine systems: A comprehensive review

open access: yesResults in Surfaces and Interfaces
Heat transfer regulation between engine components has a direct impact on engine efficiency and performance. Improving engine system efficiency, reducing emissions, and prolonging component life all depend on efficient heat management.
Md. Abdullah, Mohammad Zoynal Abedin
doaj   +1 more source

Micro‐computed tomography evaluation of dentinal microcracks following canal preparation with thermomechanically heat‐treated engine‐driven files [PDF]

open access: hybrid, 2021
Sharmini Arumugam   +5 more
openalex   +1 more source

An out-of-equilibrium non-Markovian quantum heat engine [PDF]

open access: yesQuantum Science and Technology, 2018
We study the performance of a quantum Otto cycle using a harmonic work medium and undergoing collisional dynamics with finite-size reservoirs. We span the dynamical regimes of the work strokes from strongly non-adiabatic to quasi-static conditions, and ...
M. Pezzutto, M. Paternostro, Y. Omar
semanticscholar   +1 more source

Thrombolytic proteins profiling: High‐throughput activity, selectivity, and resistance assays

open access: yesFEBS Open Bio, EarlyView.
We present optimized biochemical protocols for evaluating thrombolytic proteins, enabling rapid and robust screening of enzymatic activity, inhibition resistance, and fibrin affinity, stimulation, and selectivity. The outcome translates to key clinical indicators such as biological half‐life and bleeding risk. These assays streamline the development of
Martin Toul   +3 more
wiley   +1 more source

Apparatus for improving the fuel efficiency of a gas turbine engine [PDF]

open access: yes, 1983
An energy recovery system is provided for an aircraft gas turbine engine of the type in which some of the pneumatic energy developed by the engine is made available to support systems such as an environmental control system.
Coffinberry, G. A.
core   +1 more source

Dissipative heat engine is thermodynamically inconsistent

open access: yes, 2009
A heat engine operating on the basis of the Carnot cycle is considered, where the mechanical work performed is dissipated within the engine at the temperature of the warmer isotherm and the resulting heat is added to the engine together with an external ...
Gorshkov, V. G., Makarieva, A. M.
core   +1 more source

Efficiency at maximum power of minimally nonlinear irreversible heat engines [PDF]

open access: yes, 2012
We propose the minimally nonlinear irreversible heat engine as a new general theoretical model to study the efficiency at the maximum power $\eta^*$ of heat engines operating between the hot heat reservoir at the temperature $T_h$ and the cold one at ...
Benjamin R.   +12 more
core   +2 more sources

Out-of-equilibrium operation of a quantum heat engine [PDF]

open access: yes, 2019
Realistic quantum heat engines are operated at finite cycle times and thus represent open quantum systems in non-equilibrium. Here, their full time evolution including control of both the work medium and thermal contact to reservoirs is simulated non ...
M. Wiedmann   +2 more
semanticscholar   +1 more source

Universal constraint for efficiency and power of a low-dissipation heat engine [PDF]

open access: yesPhysical Review E, 2018
The constraint relation for efficiency and power is crucial for the design of optimal heat engines operating within finite time. We find a universal constraint between efficiency and output power for heat engines operating in the low-dissipation regime ...
Yu-Han Ma   +3 more
semanticscholar   +1 more source

Long‐term culture of skin biopsies: maintenance of fibroblast production and competency of reprogramming

open access: yesFEBS Open Bio, EarlyView.
Skin biopsies taken from a patient with an ultra‐rare disorder as well as controls were cultured for up to 473 days. The chunks of skin were serially transferred to a new culture plate when confluent with fibroblasts. Different generations of fibroblasts were analyzed for cell and molecular properties, proliferation, and competence for reprogramming to
Sudiksha Rathan‐Kumar   +3 more
wiley   +1 more source

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