Results 141 to 150 of about 2,863 (264)

Synthesis of the Phospha‐Wittig Reagent Me3P = P(C2F5) and Generation of a Phospanyl‐Wittig Derivative Me3P = C(CF3)P(C2F5)F

Chemistry – A European Journal, EarlyView.
The first example of a simple alkylated phosphinidene‐adduct (“phospha‐Wittig”) is reported. The synthesis of Me3PPC2F5 was enabled through reaction of the cyclotetraphosphane (PC2F5)4 with PMe3. The phosphanyl‐functionalized Wittig reagent Me3PC(CF3)P(C2F5)F was prepared by treating the diphosphane P2(C2F5)4 with PMe3.
Lukas Hartmann, Hannah Koch, Julia Bader, Beate Neumann, Jan‐Hendrik Lamm, Hans‐Georg Stammler, Mira Kessler, Berthold Hoge   +7 more
wiley   +1 more source

The combustion of lemon peel oil/gasoline blends in spark ignition engine with high-insulation piston crown coating. [PDF]

Sci Rep
Saravanan CG, Varuvel EG, Vikneswaran M, Femilda Josephin JS, Chinnathambi A, Pugazhendhi A, Allasi HL.   +6 more
europepmc   +1 more source

Influence of Particle Size, Moisture, and Cloud Density on Wood Dust Ignition

Chemie Ingenieur Technik, EarlyView.
The ignition and combustion of particle clouds are strongly affected by particle interactions. This study uses spectroscopy to examine effects of particle size, water content, and cloud density. Results show ignition delay rises with larger size and density, whereas combustion duration depends mainly on water and density due to moisture‐driven ...
Matteo Giesen, Daniel Bernhardt, Michael Beckmann   +2 more
wiley   +1 more source

Machine learning models for the prediction of turbulent combustion speed for hydrogen-natural gas spark ignition engines. [PDF]

Heliyon
Issondj Banta NJ, Patrick N, Offole F, Mouangue R.   +3 more
europepmc   +1 more source

Box–Behnken optimization and ANN‐ANFIS integrated modelling for transesterification using thermally activated basic oxygen furnace slag catalyst

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Global energy demand and environmental concerns have intensified the search for renewable and sustainable energy sources. This study thus, focuses on optimizing the transesterification process of waste cooking oil (WCO) using thermally activated basic oxygen furnace slag catalyst calcined at 850°C (BOF 850). The optimization and modelling were
Johra S. Ali, Hillary L. Rutto
wiley   +1 more source

Skeletal CH₃OH/NO_x Kinetic Model for Simulating Spark-Ignition and Turbulent Jet Ignition Engines. [PDF]

ACS Omega
Tang W, Silva M, Hakimov K, Zhang X, Hlaing P, Cenker E, AlRamadan AS, Turner JWG, Farooq A, Im HG, Sarathy SM.   +10 more
europepmc   +1 more source

A novel bubbling fluid bed reactor for the autothermal pyrolysis of waste plastics

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract A new pilot‐scale fluidized bed reactor operated under continuous conditions was developed and tested for the thermal pyrolysis of high‐density polyethylene (HDPE). The study focused on assessing the reliability and operability of the system under different operating conditions (400–550°C), while monitoring mass and energy balances, product ...
Khadija Olivia Ogoula Igouwe, Tchini Sévérin Tanoh, Jasmin Blanchard, Inès Esma Achouri, Nicolas Abatzoglou   +4 more
wiley   +1 more source

The SIR Model in a Moving Population: Propagation of Infection and Herd Immunity

Communications on Pure and Applied Mathematics, EarlyView.
ABSTRACT In a collection of particles performing independent random walks on Zd$\mathbb {Z}^d$ we study the spread of an infection with SIR dynamics. Susceptible particles become infected when they meet an infected particle. Infected particles heal and are removed at rate ν$\nu$.
Duncan Dauvergne, Allan Sly
wiley   +1 more source

AI‐Enhanced Laser Manufacturing: A Social Life Cycle Perspective From the White Goods Industry

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Sustainable manufacturing transitions require companies to demonstrate not only environmental and economic benefits, but also measurable advances in corporate social responsibility (CSR). Therefore, we propose using a guideline‐based Social Life Cycle Assessment (S‐LCA) aligned with UNEP (2020) and ISO 14075 (2024) to evaluate the social ...
Ricardo Mejía‐Marchena, José Osorio‐Tejada, Farshid Sadeghi‐Khanegah, Abdullah Sert, Volker Hessel   +4 more
wiley   +1 more source

Ultrafast Transitions in X‐Ray Irradiated Solids

Contributions to Plasma Physics, EarlyView.
ABSTRACT In this review, we present current developments on modeling ultrafast transitions in solids triggered by intense, atto‐ to femtosecond pulses from X‐ray free electron lasers. This specific irradiation regime requires dedicated simulation tools based on theoretical and computational methods, involving the elements of classical and quantum ...
Sebastião Antunes, Konrad J. Kapcia, Vladimir Lipp, Beata Ziaja   +3 more
wiley   +1 more source