Results 51 to 60 of about 308 (200)

Catalytic Hydrothermal Liquefaction of Polyethylene With Pt/C to Tune Product Selectivity

CleanMat, EarlyView.
Pt/C‐catalyzed hydrothermal liquefaction of polyethylene in supercritical water enables time‐dependent control of product selectivity, producing paraffin‐rich oils at shorter reaction times and aromatic‐enriched products at longer times without external hydrogen. ABSTRACT Hydrothermal liquefaction (HTL) represents a promising thermochemical pathway for
Taofeng Lu, Wan‐Ting Chen
wiley   +1 more source

DEVELOPMENT OF THE ALTERNATE PRESSURIZED THERMAL SHOCK RULE (10 CFR 50.61a) IN THE UNITED STATES

Nuclear Engineering and Technology, 2013
In the early 1980s, attention focused on the possibility that pressurized thermal shock (PTS) events could challenge the integrity of a nuclear reactor pressure vessel (RPV) because operational experience suggested that overcooling events, while not ...
MARK KIRK
doaj   +1 more source

Unprecedented Wall‐Atomically Thick Bi5O7Br Nanotubes Embedding Abundant Bi Nanodots Boosting Efficiently Photothermal Coupling Catalytic CO2 Conversion

EcoEnergy, EarlyView.
Atomically thin Bi5O7Br nanotubes embedded with abundant Bi nanodots were constructed as an efficient photothermal catalyst for CO2 conversion. The localized surface plasmon resonance and photothermal effect of Bi nanodots synergistically enhance light harvesting, charge utilization, and reaction kinetics, resulting in significantly improved CO2 to CO ...
Guobing Mao, Lu Wang, Fenfa Yao, Chuanhong Jin, Lizhe Liu, Zhigang Zou, Yong Zhou   +6 more
wiley   +1 more source

Ceria Nanostructures Obtained by Hydrothermal Synthesis: Exploring the Experimental Parameter Landscape for Precise Morphology and Size Control

European Journal of Inorganic Chemistry, EarlyView.
Hydrothermal and microwave‐assisted syntheses enable systematic tuning of ceria nanostructure morphology. Chloride counter‐ions direct nanorod growth, while an acetate buffer yields uniform nanocubes whose size (14–26 nm) is tuned via the reactor filling ratio, with microwave heating significantly cutting reaction times to minutes while preserving high
Omar Bettini, Nicola Da Roit, Andrea De Giacinto, Paolo Dolcet, Giulia Bragaggia, Jan‐Dierk Grunwaldt, Silke Behrens, Silvia Gross   +7 more
wiley   +1 more source

Oscillatory Precipitation and Re-Dissolution of Mn-Ni-(Si)-Based Precipitates in Aged Reactor Pressure Vessel Model Steels

Metals
The irradiation-induced precipitation of Mn-Ni-rich precipitates (MNPs) or Mn-Ni-Si-rich precipitates (MNSPs) is the primary cause of embrittlement in reactor pressure vessel (RPV) steels.
Fan Yang, Zhiwei Cao, Jianbin Zhang, Ting Hao   +3 more
doaj   +1 more source

Monte Carlo evaluation of neutron irradiation damage to the VVER-1000 RPV

Nuclear Energy and Technology, 2017
Neutron irradiation damage is of the most critical damage mechanisms in nuclear power plant's pressure vessel. Neutrons transfer their kinetic energy to target atoms of RPV that start to jump creating vacancies and interstitials known as Frenkel Pair (FP)
Seyed Fazel Ghazi Ardekani, Kamal Hadad
doaj   +1 more source

Application, Challenges, and Prospects of Non‐Thermal Processing Technologies for Seaweed Protein Extraction—A Review

Food Chemistry International, EarlyView.
This review highlights non‐thermal extraction technologies for seaweed proteins, emphasizing their mechanisms, impacts on protein structure and functionality, and sustainability potential. Key limitations related to species dependence, extract complexity, and scale‐up are discussed to guide future industrial and biorefinery applications.
Rahat Mahmud, Md Fuad Al Hasan, Shuvojit Roy, Tanvir Ahmed   +3 more
wiley   +1 more source

Misure di tenacità a frattura su acciai utilizzando velocità di deformazione elevate

Fracture and Structural Integrity, 2013
The knowlegde of dynamic mechanical properties is useful in all cases where the strain rate sensitivity of metallic materials is an issue, and whenever the actual loading conditions for a structure (either in normal operation or under accidental ...
Enrico Lucon
doaj   +3 more sources

Effect of Thermal Ageing at 400 °C on the Microstructure of Ferrite-Austenite Interface of Nickel-Base Alloy Narrow-Gap Dissimilar Metal Weld

Metals, 2020
Dissimilar metal welds (DMWs) are a key design feature in nuclear power systems, typically involving ferritic low-alloy steels (LAS), stainless steels (SS), and nickel-base alloys. They are, however, a potential concern regarding the structural integrity
Matias Ahonen, Roman Mouginot, Teemu Sarikka, Sebastian Lindqvist, Zaiqing Que, Ulla Ehrnstén, Iikka Virkkunen, Hannu Hänninen   +7 more
doaj   +1 more source

Removal of pharmaceuticals from municipal wastewater using a powdered activated carbon‐supplemented moving bed membrane bioreactor

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND The new European Union Wastewater Directive 2024/3019 requires upgrading sewage treatment plants to achieve 80% removal of micropollutants. This study aimed to compare different Powdered Activated Carbon dosing strategies within a hybrid Moving Bed‐Membrane Bioreactor (PAC‐MB‐MBR) system, to evaluate its performance and to study the
Athanasia Iliopoulou, Petros Mastoras, Georgia Gatidou, Kallisti Skarveli, Konstantina Adamaki, Olga S Arvaniti, Maria Aloupi, Michail S Fountoulakis, Athanasios S Stasinakis   +8 more
wiley   +1 more source