Results 41 to 50 of about 432,284 (250)

Simplified heat engine [PDF]

open access: yes, 1975
In Sterling-cycle heat engine, pneumatic system is used to drive displacer/regenerator, eliminating mechanical linkages and ...
Higa, W. H.
core   +1 more source

The Thermodynamic Efficiency in Static and Dynamic Black Holes

open access: yes, 2017
We note that, in extended phase space the cosmological constant is a thermodynamic variable. In this paper, this cosmological constant lead us to consider a black hole as a heat engine.
Jafarzade, Kh., Sadeghi, J.
core   +1 more source

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova   +25 more
wiley   +1 more source

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

Start up system for hydrogen generator used with an internal combustion engine [PDF]

open access: yes, 1977
A hydrogen generator provides hydrogen rich product gases which are mixed with the fuel being supplied to an internal combustion engine for the purpose of enabling a very lean mixture of that fuel to be used, whereby nitrous oxides emitted by the engine ...
Cerini, D. J., Houseman, J.
core   +1 more source

Stochastic energetics of a Brownian motor and refrigerator driven by non-uniform temperature

open access: yes, 2014
The energetics of a Brownian heat engine and heat pump driven by position dependent temperature, known as the B\"uttiker-Landauer heat engine and heat pump, is investigated by numerical simulations of the inertial Langevin equation. We identify parameter
Feynman R. P.   +5 more
core   +1 more source

Quantum mechanical Carnot engine [PDF]

open access: yes, 2000
A cyclic thermodynamic heat engine runs most efficiently if it is reversible. Carnot constructed such a reversible heat engine by combining adiabatic and isothermal processes for a system containing an ideal gas.
Bernhard K Meister   +7 more
core   +2 more sources

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

open access: yesMolecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla   +9 more
wiley   +1 more source

Holographic heat engine with momentum relaxation

open access: yes, 2017
We investigate the heat engine defined via black hole with momentum relaxation, which is introduced by massless axion fields. We first study the extended thermodynamical properties of the black hole and then apply it to define a heat engine.
Fang, Li-Qing, Kuang, Xiao-Mei
core   +1 more source

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