A5018243060- Granular flow and fluidized beds
- Landslides and related hazards
- Microbial Metabolic Engineering and Bioproduction
- Optical Coherence Tomography Applications
- Biofuel production and bioconversion
- Advanced MEMS and NEMS Technologies
- Optical measurement and interference techniques
- Solar Thermal and Photovoltaic Systems
- Magnetic properties of thin films
- Bacterial Genetics and Biotechnology
- Advanced Surface Polishing Techniques
- Laser Material Processing Techniques
- Magnetic Properties and Applications
- Photoacoustic and Ultrasonic Imaging
- Advanced Materials and Mechanics
- Surface Roughness and Optical Measurements
- Geotechnical and Geomechanical Engineering
- Fluid Dynamics and Turbulent Flows
- Structural Health Monitoring Techniques
- Catalysis for Biomass Conversion
- Enzyme Catalysis and Immobilization
- Enzyme Structure and Function
- Glaucoma and retinal disorders
- Advanced Sensor and Energy Harvesting Materials
- Physics of Superconductivity and Magnetism
Tianjin University
2024
University of Florida
1998-2018
ABSTRACT Escherichia coli strains (KJ060 and KJ073) that were previously developed for succinate production have now been modified malate production. Many unexpected changes observed during this investigation. The initial strategy of deleting fumarase isoenzymes was ineffective, continued to accumulate. Surprisingly, a mutation in fumarate reductase alone sufficient redirect carbon flow into even the presence fumarase. Further deletions needed inactivate malic enzymes (typically...
In this paper, we present a simple and accurate model for the normal force-displacement (NFD) relation contacting spherical particles, accounting effects of plastic deformation. This NFD model, based on formalism continuum theory elastoplasticity, is to be used in granular flow simulations involving thousands particles; efficiency thus crucial property. The accuracy allows an prediction contact force level regime. addition being more than previously proposed models, also leads coefficient...
The fermentative metabolism of glucose was redirected to succinate as the primary product without mutating any genes encoding native mixed-acid fermentation pathway or redox reactions. Two changes in peripheral pathways were together found increase yield fivefold: (i) increased expression phosphoenolpyruvate carboxykinase and (ii) inactivation phosphoenolpyruvate-dependent phosphotransferase system. These two net ATP production, pool available for carboxylation, production. Modest further...
Abstract Depth-resolved, non-contact, full-field three-dimensional (3D) deformation measurement is essential for the application of hydrogels in biomimicry, soft robotics, and optical components. However, current methods are constrained to surface measurements encounter difficulties underwater settings. Leveraging 3D depth-resolved imaging capabilities coherence tomography (OCT), we propose an OCT-based method measuring water. This integrates electrically driven devices with a Limited-memory...
MEMS scanners are useful for medical applications as optical coherence tomography and laser microsurgery. Although widespread design of have been presented, their behavior is not well known, thus, motions easily efficiently controlled. This deficiency induces several difficulties (limited resolution, accuracy, cycle time, etc.), to tackle this problem, article presents the modeling an ISC electrothermally actuated mirror experimental characterization piston motion. Modeling important...
A compact laser scanner that scans approximately 90° has been demonstrated, which is enabled by an electrothermal MEMS mirror encapsulated in a 3D printed holder with curved dome for optical amplification.
A mechanism for achieving large in-plane displacement is proposed, fabricated and tested. key distinguishing feature of this that it employs bimorph actuator beams, which have traditionally been used out-of-plane displacements only. combination rigid beams bimorphs amplifies minimizes produced by the bimorphs. test structure with thermal an embedded resistive heater fabricated; a maximum 135 μm measured at just 3.8 V dc. The may also be implemented using multimorphs based on piezoelectric...
This paper develops an averaging analysis for qualitative and quantitative study of switched piezostructural systems. The systems including passive active shunt circuits has been carried out some time. Far less is known regarding analytical methods the technique developed in this motivated by success power supplies. In it shown that provides a means determining time domain as well frequency response characteristics include capacitive circuits. performance tunable piezoceramic vibration...
The phenomenon of exchange coupling has become major research area since its discovery and was extensively studied in various ferrromagnet (FM) - antiferromagnet (AFM) systems the presence spintronics, which usually occurs a FM/AFM bilayer. A large bias field (H <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ex</sub> ) at room temperature is preferred, but perpendicular magnetic anisotropy found to be more desirable due high thermal stability...