Sorption Of Lanthanum(Iii) Ions On Impregnated Solid Extractants,
2026
Uzbek-Japan Innovation Center of Youth, Tashkent, Uzbekistan
Sorption Of Lanthanum(Iii) Ions On Impregnated Solid Extractants, Jaloliddin Q. Abdurashidov, Tadjigul R. Odamova, Maksim A. Kamarou, Zuhra Ch. Kadirova, Shahlo Sh. Daminova
CHEMISTRY AND CHEMICAL ENGINEERING
The aim of this work was to obtain solid extractants by impregnating the organic reagent 1-phenyl-1,3-butadione (BNA) onto carriers based on styrene-divinylbenzene copolymers (PAD600, PAD400) as well as activated carbon, and to investigate the sorption isotherms of La³⁺ ions under static conditions. The structure of the sorbents before and after La³⁺ ion sorption was studied using SEM-EDX and IR spectroscopy. The parameters of sorption extraction of La³⁺ ions, including extraction degree, sorbent capacity, and distribution coefficient, were evaluated. It was established that the PAD600-BNA sorbent exhibits the most favorable sorption properties toward La3+ ions.
Two-Stage Heat Treatment For Producing Highly Crystalline H-Bn Nanoparticles From Boric Acid And Urea,
2026
Tashkent Institute of Chemical Technology, Tashkent, Uzbekistan;Almalyk branch of the National Research Technological University "MISiS", Almalyk, Uzbekistan
Two-Stage Heat Treatment For Producing Highly Crystalline H-Bn Nanoparticles From Boric Acid And Urea, Sherzod E. Abdurakhmonov, Mastura Kh. Aripova, Umar A. Yakhyaev, Shoxrux B. Naimov, Odiljon E. Abdurakhmonov
CHEMISTRY AND CHEMICAL ENGINEERING
The purpose of the study was to investigate the formation of the crystal structure of hexagonal boron nitride (h-BN) nanoparticles obtained by the chemical-thermal method using two-stage heat treatment. Boric acid and urea were used as starting precursors, enabling ammonia-free synthesis conditions. It is shown that the first thermal stage at 600 °C under a nitrogen atmosphere leads to the formation of a predominantly amorphous BN-containing precursor, whereas the second stage at 1000 °C in an N2/H2 atmosphere promotes crystallization of a highly ordered hexagonal h-BN phase. The morphology and particle size distribution were examined by transmission …
Structure And Morphology Of Ultradispersed Erbium Ytterbium Oxide Powders Obtained By Deposition Method,
2026
State Technical University of Gomel, Gomel, Belarus
Structure And Morphology Of Ultradispersed Erbium Ytterbium Oxide Powders Obtained By Deposition Method, Eygeniy N. Poddenezhny, Andrei A. Boiko, Natalya E. Drobyshevskaya, Vladimir S. Urbanovich, Ekaterina E. Trusova
CHEMISTRY AND CHEMICAL ENGINEERING
The aim of research is to develop a new method for synthesis of ultra-dispersed crystalline powders of lanthanide oxides, in particular, erbium oxide doped with ytterbium oxide, intended for making transparent ceramics. The formation of nanostructured powders of the erbium oxide – ytterbium oxide system using deposition and heat treatment processes by co-deposition of salt solutions mixed with ammonium carbonate and hydrogen peroxide complex solution at temperature of 10 °C followed annealing at 100, 650, 900 and 1200°C was studied. Studies of the morphological and structural characteristics of the powders using scanning electron microscopy and X-ray phase analysis showed that …
Chemical Design Strategies For Hybrid Metal Halide Semiconductors With Enhanced Stability And Optoelectronic Properties,
2026
University of South Florida
Chemical Design Strategies For Hybrid Metal Halide Semiconductors With Enhanced Stability And Optoelectronic Properties, Ali Azmy
USF Tampa Graduate Theses and Dissertations
Metal halide semiconductors have rejuvenated the attention of the scientific community for the last two decades owing to their photophysical and electronic properties. However, these materials have some limitations that hinder their commercialization and widespread application. One major limitation of these materials is their instability under ambient and operating conditions of moisture, head, light and radiation exposure. Here, we report multiple chemical design strategies to address the stability issues of these materials while simultaneously maintaining their exceptional optoelectronic properties. Such design strategies allowed the acquisition of the first members of the family of porous metal halide semiconductors which exhibit record …
Mechanical, Thermal And Fire Behaviour Of Hemp-Based Composites With Different Binders For Sustainable Building Applications,
2026
Eindhoven University of Technology, Department of the Built Environment, Eindhoven 5612 AE, the Netherlands
Mechanical, Thermal And Fire Behaviour Of Hemp-Based Composites With Different Binders For Sustainable Building Applications, Anilcan Aygun, Fahri Birinci, Selim Aytac, Ali Kemal Ayan, Hasan Alp Sahin, Ibrahim Isildak
Journal of Sustainable Construction Materials and Technologies
This study investigates the physical, mechanical and thermal properties of hemp-based composites produced with traditional binders such as lime, cement, gypsum, clay, and water-based glue. Hemp fractions of different sizes (splinter, shiv, fiber and powder) were combined with these binders to manufacture cube and plate specimens, which were tested for physical, mechanical, thermal, and temperature resistance properties. The study aims to compare the mechanical, physical, thermal, and fire behaviour of these composites to assess their suitability for sustainable construction applications. The hemp-based composites were tested for unit weight, water absorption, compressive strength and thermal conductivity. Most specimens are lightweight (<1000 kg/m3), and exhibit good thermal insulation performance and high compressive deformability, making them suitable for seismic-prone regions. The glue-based composite had the lowest unit weight, measured as 330 kg/m3. Thermal conductivity ranged from 0.051 to 0.243 W/m· K, with several mixtures performing better than natural pumice. While cement-based composites showed the highest compressive strength, ranging from 5.5 to 24.8 kg/cm2, natural hydraulic lime is the lowest. Water absorption was high, and moisture release occurred slowly across all hemp fractions. Combustion tests indicated that hemp-based materials have moderate temperature resistance, with charring temperatures ranging from 238–265°C for raw hemp and 300–385°C when mixed with binders. Overall, hemp-based composites are lightweight, eco-friendly, and suitable for non-load-bearing construction and insulation applications. However, improvements in moisture resistance and long-term durability are necessary to enhance their practical applicability.
Sustainable Cow Dung Bricks: An Innovative Approach To Eco-Friendly Masonry With Enhanced Thermal And Mechanical Performance,
2026
Assistant Professor, Department of Civil Engineering, Navodaya Institute of Technology, Raichur, 584103, Karnataka, India
Sustainable Cow Dung Bricks: An Innovative Approach To Eco-Friendly Masonry With Enhanced Thermal And Mechanical Performance, Nagesh Sugandhi, Sachin Patil, Satish Reddy, Ashwini G, Santosh Kumar
Journal of Sustainable Construction Materials and Technologies
This study explores the development, characterization, and performance of sustainable cow dung bricks using locally sourced organic (cow dung) and mineral (clay, quartz sand, feldspar, lime) constituents for non-load-bearing masonry in India. Three blends with varying cow dung content (70%, 75%, 80%) were mixed, molded, air dried, and cured without kiln firing to reduce environmental impact. The bricks' mechanical properties—compressive strength, water absorption, bulk density, flexural strength, shore hardness, and modulus of elasticity—were systematically evaluated with complete statistical documentation (n = 6 replicates per formulation per test age). Microstructural features were investigated using Fourier Transform Infrared Spectroscopy (FTIR) and X-Ray …
Sustainable Cement-Blast Furnace Slag Mortar,
2026
IPS Academy, Institute of Engineering & Science (A UGC Autonomous Institute), Civil Engineering Department, Rajendra Nagar, A.B. Road, Indore, 452012, Madhya Pradesh, India
Sustainable Cement-Blast Furnace Slag Mortar, Richa Jain, Harshit Jain, Ashish Nim
Journal of Sustainable Construction Materials and Technologies
New building materials that required and produced less energy are need of today's infrastructure development. The ability of such building materials to promote sustainable development always puts its demand in active mode. With huge consumption of naturally occurring materials in building construction, the problem related to environment degradation is now common for world. Along with this, world is also facing the problem of reuse, recover and scientifically approved disposal of non-biodegradable wastes. Blast furnace slag (BFS) is one of those steel industry wastes that are abundantly available and their disposal arises as prime challenge for industries. This research work makes …
Polymer Microstructures For Advanced Biomanufacturing,
2026
Louisiana State University and Agricultural and Mechanical College
Polymer Microstructures For Advanced Biomanufacturing, Tongyao Wu
LSU Doctoral Dissertations
With the continued growth of the biopharmaceutical industry, the demand for scalable, robust, and resource-efficient platforms for large-scale mammalian cell culture is amplified. Recent developments in microfluidic technology, such as precise control of the microenvironment, showed the potential to improve the performance of cell culture systems. However, constrained by scalability and operational efficiency, applying such approaches to large-scale cell culture and biopharmaceutical production presents challenges. This dissertation addresses these challenges through three independent but conceptually related technological developments. First, a roll-to-roll (R2R) fabrication process was developed for the scalable production of hollow microcarriers (HMCs). HMCs provide three-dimensional microenvironments suitable for …
Comparative Study Of Cement-Rice Husk Ash Stabilized Bricks And Fired Clay Bricks,
2026
Department of Structural and Construction Engineering, College of Engineering and Technology University of Dar es Salaam, P.O. Box 35131, Dar es Salaam, Tanzania
Comparative Study Of Cement-Rice Husk Ash Stabilized Bricks And Fired Clay Bricks, Daniel R. Samson, Emmanuel S. Leo
Tanzania Journal of Science
In some countries, fired clay bricks (FCBs) are widely used for construction, but their production is energy-intensive, relies largely on firewood, and contributes to deforestation and carbon emissions. This study explores unfired clay bricks stabilised with cement and rice husk ash (RHA) as a sustainable alternative, using Dakawa ward in the Morogoro Region, Tanzania, as a case study. The bricks, with a clay of plasticity index 17%, were stabilized with 6%, 10%, and 14% cement by mass, moulded into 40 mm cubes, and cured for 28 days. The compressive strengths achieved were 1.5, 3.6, and 4.1 MPa with water absorption …
Wasting The Risk, Or Risking The Waste? Understanding The Trends Of Critical Raw Material Loss Into Waste Streams During Copper And Aluminium Processing,
2026
Missouri University of Science and Technology
Wasting The Risk, Or Risking The Waste? Understanding The Trends Of Critical Raw Material Loss Into Waste Streams During Copper And Aluminium Processing, Ella Lausberg, Joël Brugger, Rahul Ram, John R. Owen, Deanna Kemp, Micheal S. Moats, Jonathan Hamisi, Vanessa N.L. Wong
Materials Science and Engineering Faculty Research & Creative Works
Many critical raw materials (CRM) necessary in the transition to carbon-neutral energy reside in the waste streams of mining projects, as they are by-products and often not recovered alongside the primary metal. This work aims to document (i) the loss and potential recovery of by-product metals during the host commodity processing and (ii) the consequences of non-recovery, via a multi-scale risk–reward analysis. The information on the deportment of by-product metals through processing circuits is crucial for treating them as a resource, without which they risk near-permanent loss when treated as 'waste'. We review the deportment of tellurium and selenium as …
Improving Hydrogen Storage Kinetics Of Polymeric Composites Via Additions Of La0.6Ce0.4Ni5 And Carbon Particles,
2026
Air Force Institute of Technology
Improving Hydrogen Storage Kinetics Of Polymeric Composites Via Additions Of La0.6Ce0.4Ni5 And Carbon Particles, Muhammad M. Rahman, Fenil J. Desai, Ramazan Asmatulu, Md. Nizam Uddin, Karina Suarez-Alcantara
Faculty Publications
Nanostructured metal hydrides have garnered interest in their potential to store hydrogen safely and effectively as an energy carrier. By partially substituting lanthanum (La) with cerium (Ce), the structure of lanthanum pentanickel (LaNi5) was maintained to create a novel encapsulated La–Ce–Ni-based metal hydride (La0.6Ce0.4Ni5). The incorporation of metal-polymer composites can protect metal hydrides from oxidation and enhance cyclic stability. Carbon-based materials such as graphene and multi-walled carbon nanotubes (MWCNTs) not only store hydrogen but also improve the reaction kinetics and address thermal management issues. This study presents La0.6Ce0.4Ni …
Impact Of Glass Powder As A Sustainable Material On The Workability, Strength, And Durability Properties In High-Performance Basalt Fiber Reinforced Concrete: A Statistical Analysis,
2026
Department of Civil Engineering, College of Engineering, Bisha University, P.O. Box 67711, Bisha 61361, Saudi Arabia
Impact Of Glass Powder As A Sustainable Material On The Workability, Strength, And Durability Properties In High-Performance Basalt Fiber Reinforced Concrete: A Statistical Analysis, Ahmed Fathi Mohamed Salih
Journal of Sustainable Construction Materials and Technologies
The global construction sector is increasingly challenged to balance environmental sustainability with the growing demand for durable, high-performance materials. As cement production continues to be a major source of anthropogenic CO2 emissions, the incorporation of alternative, low-impact binders has become a key strategy for reducing the environmental footprint of concrete. In this context, glass powder (GP)—a finely ground industrial by-product rich in amorphous silica—has emerged as a promising partial replacement for Portland cement. Its pozzolanic reactivity contributes to improved hydration and matrix densification, while its use also supports circular economy principles by diverting waste glass from landfills. At the same …
Developing And Delphi-Validating A Phase-Based Sustainable Bsc Framework For Contractors' Sustainable Productivity Management In Developing Countries,
2026
Faculty of Civil Engineering, Ho Chi Minh City Open University, Vietnam
Developing And Delphi-Validating A Phase-Based Sustainable Bsc Framework For Contractors' Sustainable Productivity Management In Developing Countries, Truong Van Luu, Le Minh Long Nguyen
HBRC Journal
This study develops and validates, using the Delphi method, a conceptual decision-support framework for construction contractors' sustainable productivity management (CSPM) in developing-country settings. Guided by KAMET rules, semi-structured interviews were conducted with 15 experts to elicit, refine, and reach consensus on a set of productivity management attributes that construction contractors can realistically apply. The outcome is 29 feasible productivity management attributes, organized under the four Sustainable Balanced Scorecard (SBSC) perspectives and mapped onto five management phases (planning, organizing, staffing, leading/coordination, and controlling). Rather than predicting or demonstrating productivity gains, the framework provides a practical roadmap for diagnosing capability gaps, prioritizing …
Heuristic Particle Swarm Optimization Method For The Stability Analysis Of Geosynthetics-Reinforced Slopes,
2026
Associate Professor, Department of Soil Mechanics and Geotechnical Engineering, Housing and Building National Research Center, Giza, Egypt
Heuristic Particle Swarm Optimization Method For The Stability Analysis Of Geosynthetics-Reinforced Slopes, Hoda Mostafa, Ibrahim Mashhour
HBRC Journal
Slope stability is considered one of the crucial topics in geotechnical engineering. Accurate soil slopes stability analyses are essential as slope failures could cause catastrophic environmental and human disasters. Geosynthetics are widely used as stabilizing elements in slope stability analyses. Incorporating geosynthetic reinforcement generally improves the global factor of safety against slope failure. However, in practice, analyses must not only focus on the global slope stability but should also account for any sliding along geosynthetic interfaces, since geosynthetics are considered as week layers within the reinforced soil mass and act as potential slip interfaces that should be checked for stability. …
Investigating Confounding Factors In Shear Wave Speed Measurements Of Fibrotic Liver Tissues: A Computer Simulation Study,
2026
Michigan Technological University
Investigating Confounding Factors In Shear Wave Speed Measurements Of Fibrotic Liver Tissues: A Computer Simulation Study, Emily J. Miller, Yongmei Jin, Jingfeng Jiang
Michigan Tech Publications
Screening patients with liver fibrosis and identifying those at risk of developing advanced liver fibrosis is of clinical interest. Shear wave elastography (SWE), a promising non-invasive screening tool used to distinguish healthy tissue from diseased tissue, measures tissue shear wave speed (SWS) to describe tissue stiffness and identify liver fibrosis. However, considerable variations in the reported results have been found. We propose that the heterogeneity of the liver tissue background, such as the presence of fatty liver tissue and the preferred local orientation of the scarred fibrotic liver tissues embedded into the liver parenchyma, may contribute to the uncertainty in …
Co-Electrospinning Polyacrylonitrile (Pan) / Polymer Of Intrinsic Microporosity-1 (Pim-1) For Electrochemical-Based Sensor For Pyridine Detection And Absorption,
2026
The British University in Egypt
Co-Electrospinning Polyacrylonitrile (Pan) / Polymer Of Intrinsic Microporosity-1 (Pim-1) For Electrochemical-Based Sensor For Pyridine Detection And Absorption, Samar A. Salim
Nanotechnology Research Centre
The electrospinning of the polymer of intrinsic microporosity-1 (PIM-1) poses challenges due to its limited solubility and tendency to form bead-like structures at high concentrations. This work details the synthesis and analysis of electrospun composite fibers made from polyacrylonitrile (PAN) and PIM-1 for electrochemical applications. The data analysis confirmed the successful incorporation of PIM-1 into the PAN matrix. The fiber characteristics were significantly influenced by PIM-1 loading (1–10%), resulting in fiber diameters ranging from 0.8 to 1.7 μm. A 10% concentration of PIM-1 results in the formation of macropores with diameters ranging from 0.5 to 1.7 μm. Optical analysis using …
Creation Of The 2-Way Cross Laminated Timber Subroutine For Computing Dynamic Analysis Parameters,
2026
California Polytechnic State University, San Luis Obispo
Creation Of The 2-Way Cross Laminated Timber Subroutine For Computing Dynamic Analysis Parameters, Joseph Freitas
Architectural Engineering
This document will describe the inputs, methodology, and outputs for the CLT 2-way subroutine for cases with and without openings recently added to a proprietary structural analysis software. For the sake of simplicity, most of the discussion will be focused on cases without openings from here on out, as the verification process for a novel method for cases with openings is still in progress. The CLT 2-way module calculates multi-point resistance functions for panels without openings by automating the procedure outlined in an industry-standard structural design manual. The subroutine also finds the appropriate dynamic response factors, kinetic load multipliers, mass, …
New Insights Into Dynamic Evolution Of Colloidal Network Structure During Early-Age Hardening Of Cementitious Materials,
2026
Missouri University of Science and Technology
New Insights Into Dynamic Evolution Of Colloidal Network Structure During Early-Age Hardening Of Cementitious Materials, Hengrui Liu, Kaiyin Zhao, Shipeng Zhang, Hanghua Zhang, Shuangshuang Liu, Lucen Hao, Hongyan Ma, Kamal Khayat, Chi Sun Poon
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
The evolution of microstructure in cementitious materials during their transition from fluid to solid state plays a critical role in determining their ultimate mechanical strength and overall performance. This hydration stage primarily involves a dynamic densification process occurring within the colloidal network. However, the field of cement-based materials currently lacks a comprehensive theoretical framework and associated parameters capable of effectively characterizing the specific structural regions within this network. In this study, we propose an Improved Particle Linkage (IPL) theory for describing the strength, types, and quantities of particle linkages within colloidal network. The IPL theory classifies the internal network structure …
A Borophosphate Glass Doped With Cobalt Oxide Improves Skeletal Muscle Structure And Function In Myopathic Mice,
2026
Missouri University of Science and Technology
A Borophosphate Glass Doped With Cobalt Oxide Improves Skeletal Muscle Structure And Function In Myopathic Mice, Jacob A. Kendra, Alexandra G. Naman, Rebekah L. Blatt, Carla D. Zingariello, Richard K. Brow, Steven S. Segal, Aaron B. Morton
Materials Science and Engineering Faculty Research & Creative Works
Skeletal muscle myopathy remains a significant cause of disability with limited treatment strategies. Advancements in tissue engineering have led to the development of borophosphate bioactive glasses (BPBGs) capable of enhancing skeletal muscle structure and function. Using a mouse model of severe myopathy (D2.mdx), we investigated muscle force, regeneration, angiogenesis and inflammation at 14, 70 and 140 days post-treatment (dpt). Tibialis anterior (TA) muscles of D2.mdx mice that received a single injection of cobalt oxide-doped BPBG (CoO-TRIM) particles exhibit greater active force, myofiber size, and regeneration through 70 dpt compared to control D2.mdx mice injected with Saline. Vascular endothelial growth factor …
Microstructural Evolution Of Zirconium Diboride Irradiated With 5–10 Mev Au Ions At Room Temperature And 570 °C,
2026
Missouri University of Science and Technology
Microstructural Evolution Of Zirconium Diboride Irradiated With 5–10 Mev Au Ions At Room Temperature And 570 °C, Narrie Loftus, José Olivares, Miguel Crespillo, Esther Enríquez Pérez, Jeremy Watts, Eric W. Bohannan, Gregory Hilmas, William Fahrenholtz, Joseph Graham
Materials Science and Engineering Faculty Research & Creative Works
Zirconium diboride was irradiated with 5 MeV Au2 + , 7 MeV Au4+ and 10 MeV Au3+ ions at room temperature and 570 °C to doses from 1 to 8 displacements per atom (dpa). Grazing incidence X-ray diffraction (GIXRD) analysis revealed no secondary phase formation. Rietveld analysis of the GIXRD data indicated an accumulation of microstrain at low dpa and room temperature. Dislocations observed in transmission electron microscopy (TEM) cross-sections are likely the main contributor to the microstrain. High dpa and high-temperature samples exhibit lower lattice distortion than lower dpa samples, suggesting the presence of enhanced defect …
