Results 111 to 120 of about 2,872,752 (258)

α‐Amination of 1,3‐Dicarbonyl Compounds and Analogous Reactive Enolate‐Precursors Using Ammonia under Oxidative Conditions

Angewandte Chemie International Edition, Volume 64, Issue 25, June 17, 2025.
Using ammonia in combination with hypochlorites as simple oxidants under phase‐transfer conditions allows for the direct oxidative α‐amination of reactive enolate precursors such as cyclic β‐ketoesters, oxindoles, as well as malonitriles and malonates with good to excellent yields.
Christopher Mairhofer, Katharina Röser, Gabriel Burel, Sarah Merzinger, Jean‐François Brière, Roland Obermüller, Mario Waser   +6 more
wiley   +1 more source

Photovoltaic Effect Derived from the Carnot Cycle [PDF]

, 1960
A. Rose
openalex   +1 more source

Multi-criteria/comparative analysis and multi-objective optimization of a hybrid solar/geothermal source system integrated with a carnot battery

Case Studies in Thermal Engineering
Among the different electrical energy storage technologies, the Carnot batteries are promising options with low specific cost that do not suffer from geographical limitations and power-capacity coupling.
Badreddine Ayadi, Dheyaa J. Jasim, Ali E. Anqi, Walid Aich, Wajdi Rajhi, Mohammad Marefati   +5 more
doaj  

Techno-Economic Analysis of Waste Heat Recovery in Automotive Manufacturing Plants

Applied Sciences
This study proposes an innovative system for recovering waste heat from exhaust air after a regenerative thermal oxidiser process, integrating a Carnot battery and photovoltaic (PV) modules.
Putu Diah Prajna Paramita, Sindu Daniarta, Attila R. Imre, Piotr Kolasiński   +3 more
doaj   +1 more source

Simplified Helium Refrigerator Cycle Analysis Using the `Carnot Step' [PDF]

, 2006
P Knudsen, V Ganni
openalex   +2 more sources

Vertical temperature gradient of the ocean as perspective source of renewable energy [PDF]

E3S Web of Conferences
In our research we studied the efficiency of converting low-grade heat into electrical energy. The studied cycle is based on sulphuric acid solutions separation in temperature gradient and further electricity generation in concentration galvanic cell. In
Vassel Sergei, Vassel Natalia, Pavlova Irina   +2 more
doaj   +1 more source

A Posteriori Multiobjective Self-Adaptive Multipopulation Jaya Algorithm for Optimization of Thermal Devices and Cycles

IEEE Access, 2019
This paper presents the multiobjective optimization aspects of three thermal devices and two thermodynamic cycles. The thermal devices considered are two-stage thermoelectric cooler, heat pump, and a plate-fin heat exchanger.
Ravipudi V. Rao, Ankit Saroj, Pawel Oclon, Jan Taler, Jaya Lakshmi   +4 more
doaj   +1 more source

Molecular kinetic analysis of a finite-time Carnot cycle [PDF]

, 2008
Yuki Izumida, Koji Okuda
openalex   +1 more source

A simple model for Carnot heat engines

, 2008
We present a (random) mechanical model consisting of two lottery-like reservoirs at altitude $E_h$ and ...
Arnaud, Jacques, Chusseau, Laurent, Philippe, Fabrice   +2 more
core   +1 more source

Carnot's Cycle and Efficiency of Heat Engines [PDF]

Nature, 1925
ON p. 326 of NATURE for August 29 appears an abstract of a paper by Dr. J. S. Haldane, which he read before the Institution of Mining Engineers on June 16. In this paper he has “thrown to the winds” the usual academic teaching in regard to the efficiency of a Carnot cycle, and has put forward a claim that another cycle has a greater efficiency.
openaire   +2 more sources