Scholarly record · Open technical outputs · Responsible access

Publications, Technical Frameworks and Open Scientific Outputs

This page is the evidence layer of the wider scientific and engineering knowledge system. Publications, preprints, technical frameworks and professional articles are presented according to their actual evidence role and linked, where appropriate, to the canonical knowledge object, reproducible repository, methodology or engineering case they support.

How the evidence layer is organized

Knowledge objects and publication outputs are kept distinct

A publication is one representation of knowledge, not the knowledge object itself. The catalogue therefore keeps publication type, evidence status, identifiers and access routes distinct while connecting selected outputs to the Scientific & Engineering Knowledge Objects (SEKOs), repositories and case studies they support.

Peer-reviewed evidence

Journal and conference work supporting defined experimental, computational or theoretical claims.

Framework evidence

Open engineering methods and diagnostic structures linked to explicit decision questions and applicability boundaries.

Reproducible representations

Repositories, software archives and open outputs that make calculations, assumptions or reconstruction pathways inspectable.

Knowledge transfer

Professional articles communicate technical ideas to industry but are not treated as peer-reviewed scientific validation.

Flagship knowledge objects

Four canonical objects organize the strongest reusable technical evidence

Detailed engineering interpretation is maintained in Selected Work, while this page preserves the publication, identifier and access record for each object.

SEKO-NDMS-001

Nanoparticle inception hypothesis and persistence–stabilization closure.

View canonical case

SEKO-AOP-001

Matrix-aware advanced-oxidation kinetic screening framework.

View canonical case

Publication and evidence catalogue

Find evidence by topic, output type or identifier

Search by title, author, source, DOI, method or technical topic. Links lead to the website record, a locally available PDF, DOI or lawful external publication page according to the access status of each output. Where a lawful local full-text file is available, the access link identifies the available version and opens it directly in the browser.

Filter by technical domain

30 items shown

Nanoparticle Inception, Combustion Aerosols & NDMS

Scientific hypothesis · Open preprint SEKO-NDMS-001

A Transient Nano-Dense Molecular State in Nanoparticle Inception: Bridging Physical Clustering and Chemical Stabilization

Author: Ahmad Saylam
Date: March 2026
Platform: Zenodo

DOI: 10.5281/zenodo.19730735

Proposes NDMS as a testable bridge between reversible molecular clustering and chemically stabilized nanoparticle inception. The concept is exploratory and is not presented as a universally validated physical state or inception mechanism.

Knowledge role: hypothesis evidence for SEKO-NDMS-001; the repository and persistence–stabilization paper provide complementary representations of the same knowledge object.

Exploratory modelling framework · Open preprint SEKO-NDMS-001

Transient Nano-Dense Molecular States as a Persistence–Stabilization Closure for Combustion Nanoparticle Inception

Author: Ahmad Saylam
Date: May 2026
Platform: Zenodo

DOI: 10.5281/zenodo.20258147

Translates the NDMS hypothesis into a reduced closure separating association, dissociation, non-stabilizing loss and stabilization. It is a falsifiable conceptual model, not a validated particle-number or soot-yield predictor.

Knowledge role: modelling-framework evidence for SEKO-NDMS-001; scientific hypothesis and executable closure remain explicitly distinct from validated inception mechanisms.

Combustion, Soot, Engines & Chemical Kinetics

Adaptive kinetic reduction · Open preprint

Causal Adaptive Reduction of Detailed Chemical Kinetic Mechanisms: Accuracy, Transfer to a Second Mechanism, and Runtime Limits

Author: Ahmad Saylam
Date: 15 August 2026
Platform: Zenodo

DOI: 10.5281/zenodo.21932685

Tests a causal adaptive mechanism-reduction controller with GRI-Mech 3.0 and USC Mech II. The study separates reduction accuracy from computational speed, demonstrates transfer to a second parent mechanism, and identifies adaptive-management overhead as the main runtime limitation of the present Python/Cantera implementation.

Evidence role: open preprint with a complete reproducibility supplement covering the frozen method, computational-validation evidence, transfer cases, performance tests and runtime attribution.

Peer-reviewed journal article

Influence of Lateral Species Diffusion and Heat Transfer on the Evaluation of Near-Threshold Sooting Flames

Authors: Ahmad Saylam, Torsten Endres, Christof Schulz
Date: July 2023
Source: Combustion and Flame, Vol. 253, Article 112775

DOI: 10.1016/j.combustflame.2023.112775

Evaluates how lateral species diffusion and heat transfer affect interpretation of near-threshold sooting flames and the adequacy of simplified one-dimensional assumptions.

Peer-reviewed journal article

Degree Centrality of Combustion Reaction Networks for Analysing and Modelling Combustion Processes

Authors: Ahmad Saylam, Kamal Hadj Ali, Mustapha Fikri
Date: Online 6 December 2019; issue 2020
Source: Combustion Theory and Modelling, 24(3), 442–459

DOI: 10.1080/13647830.2019.1699167

Applies degree-centrality measures to combustion reaction networks to identify structurally influential species and reactions and connect graph descriptors with kinetic interpretation.

Peer-reviewed journal article

Reduction of Large Detailed Chemical Kinetic Mechanisms for Autoignition Using Joint Analyses of Reaction Rates and Sensitivities

Authors: Ahmad Saylam, Marc Ribaucour, William J. Pitz, René Minetti
Date: 2007
Source: International Journal of Chemical Kinetics, 39(4), 181–196

DOI: 10.1002/kin.20232

Combines reaction-rate and sensitivity analyses to identify removable reactions while preserving autoignition behaviour, providing a scientific foundation for later mechanism-reduction work.

Peer-reviewed journal article

Characterization of a High-Pressure Flame Facility Using High-Speed Chemiluminescence and OH LIF Imaging

Authors: Will Swain, Yejun Wang, Pradeep Parajuli, Matthew Hay, Ahmad Saylam, Thomas Dreier, Christof Schulz, Waruna D. Kulatilaka
Date: 18 March 2023
Source: Experiments in Fluids, 64, Article 71

DOI: 10.1007/s00348-023-03611-0

Characterizes an optically accessible high-pressure flame facility using high-speed chemiluminescence and planar OH LIF to separate flame behaviour from facility and boundary effects.

Peer-reviewed journal article

Benzene Addition to a Fuel-Stoichiometric Methane/O₂/N₂ Flat Flame and to n-Heptane/Air Mixtures under Rapid Compression

Authors: Abderrahman El Bakali, Marc Ribaucour, Ahmad Saylam, Sylvain Touchard, René Minetti, Pierre-Alexandre Glaude, Jean-François Pauwels
Date: May 2006
Source: Fuel, 85(7–8), 881–895

DOI: 10.1016/j.fuel.2005.10.009

Develops and evaluates a detailed mechanism for benzene-containing methane flames and n-heptane mixtures under rapid compression, linking aromatic and low-temperature oxidation chemistry.

Peer-reviewed journal article

Modeling Study of Reactive Species Formation from C1–C3 Alkanes in an HCCI Engine

Authors: Ahmad Saylam, Burak Atakan, Sebastian A. Kaiser
Date: Online 9 July 2019
Source: Combustion Theory and Modelling, 23(6), 1119–1133

DOI: 10.1080/13647830.2019.1638972

Uses a single-zone HCCI model to study formation of oxygenated hydrocarbons, hydrogen peroxide and ethylene from C1–C3 alkanes under low- and intermediate-temperature conditions.

Exploratory HCCI modelling study

HCCI Engine as Chemical Reactor to Produce Fuel/Chemicals: An Exploring Study of n-Alkanes Low-Temperature Chemistry

Author: Ahmad Saylam
Date: 11 December 2020
Source: Asian Journal of Engineering and Technology Innovation, 8(2), 1–12

Archival DOI: 10.5281/zenodo.19438638

Explores production of oxygenates, hydrogen peroxide, formaldehyde and alkenes from C1–C7 n-alkanes in an HCCI reactor concept. It is not evidence of an industrial chemical-production process.

Doctoral thesis

Modelling Studies of the Oxidation and Autoignition of Alkanes, Aromatics, and Their Mixtures at High Pressure between 600 and 1500 K

Author: Ahmad Saylam
Date: November 2005
Type: Doctoral thesis in physical chemistry

Archival DOI: 10.5281/zenodo.19438123

Integrates hydrocarbon oxidation and autoignition modelling, detailed-mechanism reduction, experimental validation and laser-diagnostic study of soot and polycyclic aromatic species.

Wastewater Treatment, Advanced Oxidation & Resource Recovery

Kinetic–process framework · Open preprint SEKO-AOP-001

A Unified Kinetic–Process Framework for Advanced Oxidation Processes: From Radical Chemistry to Reactor-Scale Performance in Wastewater Treatment

Author: Ahmad Saylam
Date: April 2026
Platform: Zenodo

DOI: 10.5281/zenodo.19732394

Links hydroxyl-radical generation, contaminant kinetics, matrix scavenging, oxidant utilization and reactor-scale indicators to explain why intrinsic reactivity may not translate into useful treatment performance.

Knowledge role: scientific-framework evidence for SEKO-AOP-001; the software archive is the reproducible implementation representation.

Desulfurization, Process Intensification & Hydrodynamic Cavitation

Engineering diagnostic framework · Open preprint SEKO-DES-001

Reaction–Transport Regime Analysis for Desulfurization of Gas and Petroleum Streams: An Engineering Diagnostic Framework

Author: Ahmad Saylam
Date: May 2026
Platform: Zenodo

DOI: 10.5281/zenodo.20095695

Distinguishes intrinsic kinetics from adsorption, interphase transfer, internal diffusion, hydrodynamics and downstream separation limitations to identify the controlling regime.

Knowledge role: scientific-framework evidence for SEKO-DES-001; the repository provides executable benchmark and screening representations.

Thermochemical Processes, Waste-to-X, Biochar & Circular Conversion

Process-development framework · Open preprint SEKO-TDS-001 · Supporting methodology evidence

Thermochemical Process Development: From Mechanism to Scale-Up and Industrial Adoption

Author: Ahmad Saylam
Date: June 2026
Platform: Zenodo

DOI: 10.5281/zenodo.20760609

Connects feedstock characterization, reaction mechanisms, transport, reactor behaviour, product recovery, pilot validation and industrial implementation through evidence-gated development stages.

Knowledge role: supporting evidence for the cross-domain technology-development, validation and scale-up methodology maintained in Research & Tools.

Thermochemical modelling study · Research reconstruction SEKO-BIO-001

Enhancing Biomass Conversion: Advanced Modeling and Process Optimization for Efficient Biochar and Heat Production

Author: Ahmad Saylam
Date: September 2024
Platform: Zenodo

DOI: 10.5281/zenodo.19438451

Uses simplified reactor modelling to examine drying, pyrolysis and combustion trends. It is a screening-level foundation, not a validated feedstock-, particle- or reactor-specific industrial model.

Knowledge role: scientific-output representation supporting SEKO-BIO-001; the canonical knowledge object remains explicitly bounded as a research reconstruction and screening foundation.

Energy Storage & Sustainable Energy Systems

Engineering Scale-Up, Project Management & Complex Systems

Engineering scale-up framework · Open preprint SEKO-TDS-001 · Supporting methodology evidence

Engineering Scale-Up: Overcoming Challenges from Lab to Industry

Author: Ahmad Saylam
Date: February 2025
Platform: Zenodo

DOI: 10.5281/zenodo.19767463

Treats scale-up as a multidisciplinary development problem involving flow, heat and mass transfer, kinetics, materials, modelling, economics, operability and risk.

Knowledge role: supporting evidence for SEKO-TDS-001 and the evidence-gated technology-development methodology.

Professional and Industry Articles

German industry article

Hydrodynamische Kavitation

Contribution context: Ahmad Saylam / RAPTECH-related professional article
Date: 2026
Source: RECYCLING Magazin, issue 06/2026

Introduces hydrodynamic cavitation and potential process applications for an industry audience. It is not independent proof of proprietary equipment performance or universal process benefits.

No publication matched the current search and filter.

Access, provenance and interpretation

Responsible publication access and evidence use

Public accessibility, peer-review status and technical maturity are separate questions. The catalogue therefore uses the most appropriate lawful and technically informative route available.

Access and copyright

Where a lawful local full-text file is available, the access link identifies the available version, including an Author Accepted Manuscript (AAM) where applicable, and opens it directly in the browser. Some journal articles still require publisher or institutional access. Restricted publisher versions are not intentionally reproduced or redistributed here.

Evidence and maturity

Peer-reviewed studies, theses, open preprints, reconstructed models, screening frameworks and professional articles are labelled according to their actual type.

This catalogue is the publication and evidence layer of the wider scientific and engineering knowledge system. Selected outputs support canonical SEKOs, methodologies and engineering cases; publication presence alone does not imply general industrial validity or universal applicability.

Practical interpretation and application context are presented in Selected Work. Canonical methods, computational environments and the technology-development methodology are presented in Research & Tools. Defined services and engagement boundaries are presented on the Consulting page.