Article
Energy & Fuels
Vivek Ravisankar, Jie Wu, Suresh Bhargava, Rajarathinam Parthasarathy
Summary: Over-processing particles during mixing can lead to particle damage and reduced product quality in the mineral and chemical processing industries. This study investigated particle attrition in a mechanically agitated vessel using focused beam reflectance measurement (FBRM). It was found that increasing solids concentration resulted in increased particle count due to higher levels of attrition. However, under unbaffled conditions, certain impellers showed lower particle attrition, suggesting potential for process intensification.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2023)
Article
Chemistry, Multidisciplinary
Ariel Yi Hui Chua, Gian Yion Tan, Eunice Wan Qi Yeap, David Millar Walker, Joel M. Hawkins, Saif A. Khan
Summary: In this paper, a well-based microfluidic flow cell platform is presented for rapid and direct measurements of evolving crystal sizes and size-dependent growth rates. The platform allows extraction of time-varying crystal size distributions and estimation of shear and size-dependent growth rates. It can be used as a process development and analytics tool, and can be retrofitted to crystallization vessels for online measurements.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Engineering, Chemical
Roberto Irizarry, Akshaya Nataraj, Jochen Schoell
Summary: This work presents a refined model architecture for calculating particle size distribution (PSD) from chord length distribution (CLD) measurements, enabling the prediction of additional PSD modalities. Additionally, an inference system is proposed to detect morphology or modality transitions in crystallization processes using CLD input signals.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Engineering, Chemical
C. E. Crestani, A. Bernardo, C. B. B. Costa, M. Giulietti
Summary: The research converted sucrose chord length distribution measured by an online sensor into particle size distribution using an artificial neural network, demonstrating a reliable model which has potential applications in both industrial processes and laboratory studies.
Article
Acoustics
Kana Kitao, Tomohisa Norisuye
Summary: In this study, high-speed and high-precision nanoparticle measurement was achieved by using a high-energy focused transducer, a high-frequency sensor enhancing scattering performance, and a short pulse repetition time. By observing diffusive motion, the motion of nanoparticles could be directly tracked and particle size analysis could be conducted.
Article
Chemistry, Multidisciplinary
David Acevedo, Wei-Lee Wu, Xiaochuan Yang, Naresh Pavurala, Adil Mohammad, Thomas F. O'Connor
Summary: Pharmaceutical crystallization significantly impacts the properties of active pharmaceutical ingredients. FBRM is commonly used for monitoring crystal size and distribution characteristics. This study validated two CLD-CSD models and found that the theoretical model had high prediction error for CSD. The data driven model can serve as a qualitative monitoring tool in continuous operations.
Article
Chemistry, Analytical
Su Wu, Yong-Sheng Li, Xin-Long Wang
Summary: By combining FIA with FBRM, the dynamic formation of BaSO4 particles was evaluated, and optimized parameters for BaCl2, PEG-4000, ethanol were obtained. The system showed accurate results for measuring high sulfate concentrations.
ANALYTICAL METHODS
(2021)
Article
Engineering, Geological
Abolfazl Hashemi, Sara Borazjani, Cuong Nguyen, Grace Loi, Nastaran Khazali, Alex Badalyan, Yutong Yang, Bryant Dang-Le, Thomas Russell, Pavel Bedrikovetsky
Summary: This study focuses on the transport of nano particles in porous media, specifically the detachment mechanisms of detrital and authigenic fines. By integrating Timoshenko's beam theory, a CFD-based model, and strength failure criteria, a novel explicit criterium for fines detachment by breakage at the pore scale is proposed. Experimental results show a good match with the analytical model, validating its reliability.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2023)
Article
Engineering, Ocean
Jian-Feng Chen, Stephen Akosah, Chao Ma, Solomon S. R. Gidigasu
Summary: This study analyzed the behavior of reinforced coral sand through large-scale consolidated drained triaxial tests. The inclusion of geogrid was found to significantly improve the shear strength and shear dilation of the coral sand, with better reinforcement effect on dry samples. The uniformly graded coral sand exhibited higher compressibility and distinct strain hardening behavior, resulting in a better reinforcement effect of geogrid on the natural coral sand sample.
MARINE GEORESOURCES & GEOTECHNOLOGY
(2023)
Article
Materials Science, Paper & Wood
Sezen Yucel, Robert J. Moon, Linda J. Johnston, Berkay Yucel, Surya R. Kalidindi
Summary: This paper introduces a new semi-automated image analysis framework called SMART, which can reliably and quickly detect and classify CNCs from TEM and AFM images and measure their dimensions. The SMART approach shows good agreement and higher throughput in CNC identification and dimensional measurements compared to conventional manual methods.
Article
Nanoscience & Nanotechnology
Yawar Abbas, Muhammad Umair Khan, Florent Ravaux, Baker Mohammad, Moh'd Rezeq
Summary: The optical rectenna is a device that converts electromagnetic radiations in the optical range into direct current. In this study, the researchers demonstrate the optical rectenna effect using single-wall carbon nanotubes cut at resonance lengths of monopole nano-antennas. By engineering the SWCNTs using high-energy gallium ion beams, they were able to convert incident red, green, and blue lights into direct current. The rectenna characteristics were investigated using conductive mode atomic force microscopy.
ACS APPLIED NANO MATERIALS
(2022)
Article
Multidisciplinary Sciences
Muhaimin Muhaimin, Anis Yohana Chaerunisaa, Roland Bodmeier
Summary: In this study, online real-time particle size analysis of microencapsules manufacturing process using FBRM was conducted, investigating the impact of polymer type on size distribution. Results showed that FBRM measurements during particle solidification were comparable to other methods, and polymer type significantly influenced microparticle characteristics and transformation process.
SCIENTIFIC REPORTS
(2021)
Article
Metallurgy & Metallurgical Engineering
J. W. Elmer, A. T. Teruya, G. Gibbs
Summary: Measuring and controlling the power density distribution of electron beams used for welding is crucial for producing repeatable welds. The enhanced modified Faraday cup (EMFC) diagnostic method can reconstruct the beam's power density distribution more accurately, and there may be differences in the results compared to the International Standards Organization (ISO) method.
Article
Engineering, Chemical
P. Sudhakar, Alka Kumari, Sazal Kundu, Vivek Ravi Sankar, Prathap Kumar Thella, Kalpit Shah, Suresh K. Bhargava
Summary: In this study, antisolvent crystallization of L-aspartic acid (L-ASP) was optimized using response surface methodology (RSM) and a focused beam reflectance measurement (FBRM) tool. Important process parameters such as storage temperature, stirrer velocity, storage time, and solvent ratio were identified to significantly improve the yield and quality of the product, while chord length distribution (CLD) data was obtained through FBRM. The results showed that 2-propanol was a more effective antisolvent than methanol for L-ASP crystallization. Temperature was found to have a critical effect on crystal formation, with crystals forming between 298.15 and 303.15 K. ANOVA results confirmed the significant impact of all studied variables on the yield and CLD. The optimum crystallization conditions were determined as 18 h, stirrer velocity of 200 rpm, distilled water-formic acid/IPA ratio of 1:3 (v/v), and storage temperature of 298.15 K. A quadratic response surface model satisfactorily described the crystallization of L-ASP with an R2 of 0.99 and a deviation of 1.2%.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Engineering, Chemical
Carmine Sabia, Tommaso Casalini, Luca Cornolti, Marco Spaggiari, Giovanni Frigerio, Luca Martinoli, Alberto Martinoli, Antonio Buffo, Daniele L. Marchisio, Maurizio C. Barbato
Summary: This work presents a novel approach for modeling the micronization of pharmaceutical ingredients. It combines 3D single-phase fluid-dynamics simulations to calculate gas velocity with a 1D compartmentalized model to calculate solid velocities and takes into account particle size reduction through a breakage kernel. The simulation results are validated against experiments and the model shows good predictions, especially for D90 values, in a short computational time.
Article
Thermodynamics
Minh Tri Luu, Dia Milani, Robbie McNaughton, Ali Abbas
APPLIED THERMAL ENGINEERING
(2018)
Review
Green & Sustainable Science & Technology
Peter Adeniyi Alaba, Ali Abbas, Jun Huang, Wan Mohd Ashri Wan Daud
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2018)
Article
Green & Sustainable Science & Technology
Joseph Zeaiter, Fouad Azizi, Mohammad Lameh, Dia Milani, Hamza Y. Ismail, Ali Abbas
Article
Computer Science, Interdisciplinary Applications
Saket Sinha, Dia Milani, Minh Tri Luu, Ali Abbas
COMPUTERS & CHEMICAL ENGINEERING
(2018)
Article
Automation & Control Systems
Norhuda Abdul Manaf, Abdul Qadir, Ali Abbas
JOURNAL OF PROCESS CONTROL
(2019)
Article
Green & Sustainable Science & Technology
Norhuda Abdul Manaf, Gordon Weiss, Ali Abbas
JOURNAL OF CLEANER PRODUCTION
(2019)
Article
Biochemical Research Methods
Hanan Hasan, Muhamad Hafiz Abd Rahim, Leona Campbell, Dee Carter, Ali Abbas, Alejandro Montoya
Article
Energy & Fuels
Minh Tri Luu, Dia Milani, Mobin Nomvar, Ali Abbas
Article
Environmental Sciences
Aldric S. Tumilar, Dia Milani, Zachary Cohn, Nick Florin, Ali Abbas
Summary: This article introduces a unique industrial symbiosis model using an algae cultivation unit, demonstrating the potential for emission reduction, production enhancement and CO2 mitigation through optimization.
Article
Chemistry, Multidisciplinary
Lisa Pokrajac, Ali Abbas, Wojciech Chrzanowski, Goretty M. Dias, Benjamin J. Eggleton, Steven Maguire, Elicia Maine, Timothy Malloy, Jatin Nathwani, Linda Nazar, Adrienne Sips, Jun'ichi Sone, Albert van den Berg, Paul S. Weiss, Sushanta Mitra
Summary: In summary, nanotechnology can contribute to the achievement of Sustainable Development Goals through technological innovation and interdisciplinary approaches, accelerating progress both in individual countries and globally. Various nations are actively working towards these goals by targeting solutions, technology translation, and promoting a circular economy.
Article
Polymer Science
Rafay Tashkeel, Gobinath P. Rajarathnam, Wallis Wan, Behdad Soltani, Ali Abbas
Summary: This study presents an adaptation of the material circularity indicator (MCI) that incorporates economic considerations and examines post-consumer plastic packaging waste in the Netherlands. The results suggest that separately collected plastic waste may have greater conformity to the circular economy under cost normalization.
Article
Green & Sustainable Science & Technology
Jasleen Kaur Daljit Singh, Georgina Molinari, Jonathan Bui, Behdad Soltani, Gobinath Pillai Rajarathnam, Ali Abbas
Summary: The study shows that recycling technologies can reduce the environmental impact of EoL PV systems, but the impact of recycling plant construction phase is not considered. Increasing the lifespan of PV systems helps in reducing environmental impacts.
Article
Biochemistry & Molecular Biology
Jasleen Kaur Daljit Singh, Minh Tri Luu, Jonathan F. Berengut, Ali Abbas, Matthew A. B. Baker, Shelley F. J. Wickham
Summary: DNA nanotechnology allows for the construction of custom membrane-interacting nanostructures with diverse functions. Quantification of assembly yield of cholesterol-modified DNA origami nanostructures revealed specific changes that can maximize yield. These findings provide fundamental guidelines to reduce cholesterol-induced aggregation and improve the yield of well-formed structures for future applications in nanomedicine and biophysics.
Review
Engineering, Environmental
Eric Sanjaya, Ali Abbas
Summary: This paper provides a comprehensive review of the environmental impact of plasma gasification technology and highlights its environmental benefits over landfilling and incineration. It also compares the environmental impact of plasma gasification with conventional gasification and finds differing results.
RESOURCES CONSERVATION AND RECYCLING
(2023)
Article
Materials Science, Multidisciplinary
Amira Farzana Samat, Dee Carter, Ali Abbas
Summary: This study focuses on the degradation of polypropylene (PP) using Aspergillus terreus ATCC 20542 and Engyodontium album BRIP 61534a, with emphasis on pre-treatment. UV and heat-treated metallised film (MFPP) demonstrated significant weight loss when incubated with A. terreus. Biomass production, reduction rate, FTIR, and SEM analyses support the degradation rate. The results indicate that PP can be utilized as a carbon source by A. terreus and E. album with the aid of pre-treatment, promoting biological pathways for plastic waste treatment.
NPJ MATERIALS DEGRADATION
(2023)
