Results 71 to 80 of about 35,438 (308)
Biodegradable Zn‐Based Implants: Progress, Challenges, and Pathways toward Clinical Translation
Advanced Science, EarlyView.Exploring biodegradable Zn‐based implants offers a promising pathway to next‐generation biomedical devices with balanced degradation and biocompatibility. A comprehensive overview of biodegradable Zn‐based implants, covering their biological significance, material design principles, and advanced engineering strategies is provided.
Panfeng Zhao +10 more
wiley +1 more source
Improving the energy efficiency of NPP
Nuclear Energy and Technology, 2016 The objective of the present study is the analysis and assessment of potential ways for enhancing the energy efficiency of nuclear power generation. Currently used and promising advanced thermodynamic cycles of nuclear power plants in power generation ...
S.E. Shcheklein +2 more
doaj +1 more source
Market Structure Scenarios in International Steam Coal Trade [PDF]
The seaborne steam coal market changed in recent years. Trade volumes grew dynamically, important players emerged and since 2007 prices increased significantly and remained relatively high since then.
Trueby, Johannes, Paulus, Moritz
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Detection of shaft-seal rubbing in large-scale power generation turbines with acoustic emissions. Case study. [PDF]
, 2004 Rubbing between the central rotor and the surrounding stationary components of machinery such as large-scale turbine units can escalate into severe vibration, resulting in costly damage.
Mba, David +3 more
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Modelling of high temperature storage systems for latent heat [PDF]
, 2009 There is a huge demand for heat storages for evaporation applications. Thermal storage systems are used to increase the efficiency of thermal systems by an improved adaption of energy availability and energy demand. In this paper a possible solution
Andreas Stückle, Stückle, Andreas
core +1 more source
Electrocatalytic Coupling Conversion of Methane by Dual‐Site Control in Nickel Oxyhydroxide
Advanced Science, EarlyView.Electrocatalytic coupling conversion of methane (CH4) is accomplished on the nickel oxyhydroxide (NiOOH), wherein the Ni─O dual‐site is triggered via the proper electronic interaction, synergistically promoting the C─H activation and C─C formation, enabling a selective and efficient C2 product generation route under ambient conditions. ABSTRACT Methane
Kailong Lu +7 more
wiley +1 more source
Solar steam supply: Initial operation of a plant
, 2011 This paper describes experiences in operating a parabolic trough collector field for process heat supply by direct steam generation. The solar steam generator has been running automatically since its start in 2010 except for a winter pause up to now ...
Wirth, Hans Peter +23 more
core +1 more source
Advanced Science, EarlyView.We demonstrate how oxygen‐deficient ruthenium oxide (RuOx) nanoparticles confined within covalent organic framework achieve highly efficient nitrate‐to‐ammonia conversion. Strong interaction between RuOx nanoparticles and COF results in modified interfacial hydrogen‐bond water network and adsorption of nitrogenous intermediates.
Yun Li +6 more
wiley +1 more source
Entropy‐Stabilized Aluminate Catalysts That Break the Activity–Stability Tradeoff in CF4 Hydrolysis
Angewandte Chemie, EarlyView.Entropy‐stabilized aluminate breaks the activity–stability tradeoff in CF4 hydrolysis by combining a multication aluminate framework with an entropy‐stabilized lattice. An electron‐deficient Al–O environment is F‐philic but O‐phobic, enabling C–F activation while suppressing H2O poisoning. Under steam‐rich, strongly fluorinating conditions, the entropy‐
Seunghyuck Chi +7 more
wiley +2 more sources
, 2011 In addition to the commercial parabolic trough power plants using synthetic oil, the direct steam generation (DSG) is one option for future trough plants.
Laing, Doerte +6 more
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