A5015947757- Rheology and Fluid Dynamics Studies
- Electrical and Bioimpedance Tomography
- Additive Manufacturing and 3D Printing Technologies
- Microfluidic and Capillary Electrophoresis Applications
- Carbon Nanotubes in Composites
- Advanced Sensor and Energy Harvesting Materials
- Microfluidic and Bio-sensing Technologies
- Electromagnetic Launch and Propulsion Technology
- Music Technology and Sound Studies
- Material Properties and Processing
- BIM and Construction Integration
- Advanced Cellulose Research Studies
- Polysaccharides Composition and Applications
- Non-Destructive Testing Techniques
- Enhanced Oil Recovery Techniques
- Manufacturing Process and Optimization
- Software Engineering Research
- Graphene research and applications
- Advanced Measurement and Detection Methods
- Fiber-reinforced polymer composites
- Pickering emulsions and particle stabilization
- Guidance and Control Systems
- Injection Molding Process and Properties
- Blood properties and coagulation
- Natural Language Processing Techniques
Massachusetts Institute of Technology
2017-2024
IIT@MIT
2016-2024
Politecnico di Milano
2022
Duke University
2015-2018
Triangle
2015
Durham Technical Community College
2015
Wider use and adaptation of microfluidics is hindered by the infrastructure, knowledge, time required to build prototype systems, especially when multiple fluid operations measurements are required. As a result, 3D printing attracting interest, yet cannot readily achieve feature size, smoothness, optical transparency needed for many standard microfluidic systems. Herein we present new approach design construction high-precision modular microfluidics, using injection-molded blocks that...
Generative AI models provide foundational knowledge and sufficient reasoning to aid in individual aspects of a computational design modeling workflow (see Part 1 <https://doi.org/10.1162/99608f92.cc80fe30> ). In this work, we analyze the ability state-of-the-art LLMs (in particular GPT-4) reason about entire end-to-end workflow, from conceptualizing realization, for two target domains: static physical objects (here, furniture), dynamical cyberphysical systems quadcopters). Our investigation...
Micro-prosthetics requires the fabrication of mechanically robust and personalized components with sub-millimetric feature accuracy. Three-dimensional (3D) printing technologies have had a major impact on manufacturing such miniaturized devices for biomedical applications; however, biocompatibility requirements greatly constrain choice usable materials. Hydroxyapatite (HA) its composites been widely employed to fabricate bone-like structures, especially at macroscale. In this work, we...
The progress in generative AI, particularly large language models (LLMs), opens new prospects design and manufacturing. Our research explores the use of these tools throughout entire manufacturing workflow. We assess capabilities LLMs various tasks: converting text prompts into designs, generating spaces variations, transforming designs instructions, evaluating performance, searching for based on performance metrics. identify discuss current strengths limitations LLMs, suggesting areas...
Chlorosulfonic acid and oleum are ideal solvents for enabling the transformation of disordered carbon nanotubes (CNTs) into precise highly functional morphologies. Currently, processing these using extrusion techniques presents complications due to chemical compatibility, which constrain equipment substrate material options. Here, we present a novel solvent system based on methanesulfonic or p -toluenesulfonic acids with low corrosivity, form true solutions CNTs at concentrations as high 10...
Published regression equations relating digestibility of starch to fecal concentration have slopes that differ by over 5-fold. Hence, nutritionists questioned their legitimacy. Total-tract and in feces are interlocked mathematically 2 factors—starch content the diet DM. Digestibility data compiled from published literature including 201 diets fed lactating dairy cows 191 feedlot cattle were employed re-examine relationships concentrations NDF. Regression analyses plots clearly illustrated...
The precise arrangement of microscopic objects is critical to the development functional materials and ornately patterned surfaces. Here, we present an acoustics-based method for rapid particles into organized programmable architectures, which are periodically spaced within a square assembly chamber. This macroscale device employs two-dimensional bulk acoustic standing waves propel along base chamber toward pressure nodes or antinodes, depending on contrast factor particle, capable...
Development of a refractory selective solar absorber (RSSA) is the key to unlock high-temperature thermal and thermochemical conversion. The fundamental challenge RSSA lack design fabrication guidelines simultaneously achieve omnidirectional, broadband absorption sharp spectral selectivity at desired cutoff wavelength. Here, we realize ruthenium-carbon nanotube (Ru-CNT) nanocomposite with multiscale nanoparticle-on-nanocavity plasmonic modes. Ru conformally coated on sidewalls CNTs enables...
The advancement of Large Language Models (LLMs), including GPT-4, provides exciting new opportunities for generative design. We investigate the application this tool across entire design and manufacturing workflow. Specifically, we scrutinize utility LLMs in tasks such as: converting a text-based prompt into specification, transforming instructions, producing space variations, computing performance design, searching designs predicated on performance. Through series examples, highlight both...
The advancement of Large Language Models (LLMs), including GPT-4, provides exciting new opportunities for generative design. We investigate the application this tool through sequential steps computational design and manufacturing workflow. In particular, we examine how LLMs can aid in tasks including: converting a text-based prompt into quantitative specification, transforming instructions, producing space variations within that space, computing performance given design, optimizing designs...
The vane-in-cup (VIC) geometry has been widely used for the rheological characterization of yield-stress fluids because it minimizes slip effects at liquid/solid interface rotating and reduces sample damage during loading process. However, severe kinematic limitations arising from spatial complexity mixed shear extensional flow have identified quantitative rheometrical measurements in complex fluids. Recently, vanes with fractal cross sections suggested as alternatives accurate rheometry...
Secondary propulsion methods for high-speed hyperloop transportation are sparsely researched. essential to quickly, efficiently, and safely get a pod up its target speed from stationary state. In this article, we propose analyze the feasibility of form electromagnetic (EM) secondary propulsion, called railgun, commonly used in modern-day artillery technology ammunition launching. We assess two different materials three geometries railgun armature propel pod. Inverse design multiphysics...
Aseptic loosening, or loss of implant fixation, is a common complication following total joint replacement. Revision surgeries cost the healthcare system over $8 billion annually in US. Despite prevalence aseptic timely and accurate detection remains challenge because traditional imaging modalities such as plain radiographs struggle to reliably detect early stages loosening. Motivated by this challenge, we present novel approach for vivo monitoring failure cemented replacements. Poly(methyl...
Ionic liquids (ILs) hold great potential as solvents to dissolve, recycle, and regenerate cellulosic fabrics, but the dissolved cellulose material system requires greater study in conditions relevant fiber spinning processes, especially characterization of nonlinear shear extensional flows. To address this gap, we aimed disentangle effects temperature, concentration, degree polymerization (DOP) on flows an IL. We have studied behavior from two sources, fabric filter paper,...
The mechanical experience of consumption (i.e., feel, softness, and texture) many foods is intrinsic to their enjoyable consumption, one example being the habit twisting a sandwich cookie reveal cream. Scientifically, cookies present paradigmatic model parallel plate rheometry in which fluid sample, cream, held between two plates, wafers. When wafers are counter-rotated, cream deforms, flows, ultimately fractures, leading separation into pieces. We introduce Oreology (/ɔriːˈɒlədʒi/), from...
Abstract Acoustic waves are increasingly used to concentrate, separate, and pattern nanoparticles in liquids, but the extent which of different size composition can be focused is not well‐defined. This article describes a simple analytical model for predicting distribution around node 1D bulk acoustic standing wave over time as function pressure amplitude, contrast factor (i.e., nanoparticle fluid composition), nanoparticles. Predictions from this systematically compared results experiments...
Aqueous foams are useful in several applications, especially to reduce liquid loading the oil and gas industry. The rheology of these evolves rapidly, suitable constitutive models required describe resulting multiphase flow. We a new experimental setup for advanced rheometry involving 4-arm 12-arm vane-in-textured-cup toolsets. cup was designed provide situ foaming minimize injection times flow-history artifacts before measurement, while vane selected eliminate slip generate homogeneous...
Tactile sensors, or sensors that collect measurements through touch, have versatile applications in a wide range of fields including robotic gripping, intelligent manufacturing, and biomedical technology. Hoping to match the ability human hands sense physical changes objects engineers experimented with variety materials from soft polymers hard ceramics, but so far, all fallen short. A grand challenge for developers "human-like" bionic tactile is be able strains while maintaining low profile...
The design of soft magnetic hydrogels with high concentrations particles is complicated by weak retention the iron oxide in hydrogel scaffold. Here, we propose a strategy that circumvents this problem through situ mineralization nanoparticles within polymer functionalized strongly iron-coordinating nitrocatechol groups. process facilitates synthesis concentration large (up to 57 wt % dry mass per single cycle) simple one-step under ambient conditions. resulting are (kPa range) and...
To enable robust rheological measurements of the properties yield stress fluids, we introduce a class modified vane fixtures with fractal-like cross-sectional structures. A greater number outer contact edges leads to increased kinematic homogeneity at point yielding and beyond. The vanes are 3D printed using desktop stereolithography machine, making them inexpensive (disposable), chemically-compatible wide range solvents, readily adaptable as base for further design innovations. complete...
At an estimated cost of $8 billion annually in the United States, revision surgeries to total joint replacements represent a substantial financial burden health care system. Fixation failures, such as implant loosening, wear, and mechanical instability poly(methyl methacrylate) (PMMA) cement, which bonds bone, are main causes long-term failure. Early accurate diagnosis cement failure is critical for developing novel therapeutic strategies reducing high risk misjudged revision. Unfortunately,...