A5078748158- Particle accelerators and beam dynamics
- Advanced machining processes and optimization
- Particle Accelerators and Free-Electron Lasers
- Manufacturing Process and Optimization
- Advanced Surface Polishing Techniques
- Superconducting Materials and Applications
- Advanced Measurement and Metrology Techniques
- Particle Detector Development and Performance
- Magnetic confinement fusion research
- Additive Manufacturing Materials and Processes
- Advanced Machining and Optimization Techniques
- Metal Forming Simulation Techniques
- Additive Manufacturing and 3D Printing Technologies
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Gyrotron and Vacuum Electronics Research
- Parallel Computing and Optimization Techniques
- Engineering Technology and Methodologies
- X-ray Spectroscopy and Fluorescence Analysis
- Mechanical Engineering and Vibrations Research
- Distributed and Parallel Computing Systems
- Spacecraft and Cryogenic Technologies
- Soil Mechanics and Vehicle Dynamics
- Tunneling and Rock Mechanics
- Embedded Systems Design Techniques
Oak Ridge National Laboratory
2020-2024
Brookhaven National Laboratory
2013-2024
Beaumont Health
2024
Michigan United
2024
Government of the United States of America
2024
Becton Dickinson (United States)
2023
National Transportation Research Center
2020-2022
National Technical Information Service
2022
Office of Scientific and Technical Information
2022
Sandia National Laboratories California
2016-2021
In this paper, various models of the milling process in frequent use are reviewed. They classified order increasing sophistication and accuracy as (1) Average Rigid Force Static Deflection Model, (2) Instantaneous (3) Force, (4) With Feedback (5) Regenerative Dynamic Model. each case, validity, possible applications, limitations model discussed. final section, several applications Model used to illustrate wide range applicability model.
This paper compares various sensors and shows that a microphone is an excellent sensor to be used for chatter detection control. Comparisons are made between the some other common (dynamometers, displacement probes, accelerometers) regarding sensing of unstable milling. It shown signal from provides competitive, in many instances superior, tht can utilized identify chatter. Using time domain milling simulations low-radial-immersion, low-feed, finishing operations it these cuts (especially at...
The focus of the majority high-speed machining research has been directed toward improving metal removal rates. Tool materials capable withstanding high cutting speeds have become available (silicon nitride for cast iron, solid carbide aluminum, and superabrasives hardened steels), shifted to maximizing performance machine tool. Measurement performance, chatter avoidance, structural design, tool retention, axis control important topics. purpose this paper is provide an overview state art in...
As spindle speeds and power have increased, the possibility of using stability lobe phenomena to substantially increase metal removal rate has become more attractive, selection optimum an important consideration. It is shown that, for many milling operations, it desirable set tooth frequency equal natural frequency. At this speed, development resonant forced vibration actually inhibited by regeneration waviness. An algorithm presented automatically selecting speed based on cutting force signal.
The dielectric constant and conductivity of saturated clays vary with the frequency alternating current in range 106 to 108 Hz. These variations can be used reflect influences changes fabric structure-determining factors clays, since dispersion radio are influenced a numerically significant predictable manner by clay type amount, water content, particle orientation, contact, nature heterogeneity amount electrolyte. A new compositional property, defined herein as wet particles or aggregate,...
Large language models (LLMs) fine-tuned on multimodal financial data have demonstrated impressive reasoning capabilities in various tasks. However, they often struggle with multi-step, goal-oriented scenarios interactive markets, such as trading, where complex agentic approaches are required to improve decision-making. To address this, we propose \textsc{FLAG-Trader}, a unified architecture integrating linguistic processing (via LLMs) gradient-driven reinforcement learning (RL) policy...
Background: The exercise treadmill test is recommended for risk stratification among patients with intermediate to high pretest probability of coronary artery disease. Posttest based on the Duke score, which includes only functional capacity and measures ischemia. Objective: To develop externally validate a post–treadmill test, multivariable mortality prediction rule adults suspected disease normal electrocardiograms. Design: Prospective cohort study conducted from September 1990 May 2004....
Continuous-wave photoinjectors operating at high accelerating gradients promise to revolutionize many areas of science and applications. They can establish the basis for a new generation monochromatic x-ray free electron lasers, high-brightness hadron beams, or microchip production. In this Letter we report on record-performing superconducting rf gun with ${\mathrm{CsK}}_{2}\mathrm{Sb}$ photocathode. The is generating charge bunches (up $10\text{ }\text{ }\mathrm{nC}/\text{bunch}$) low...
Abstract High brightness, high charge electron beams are critical for a number of advanced accelerator applications. The initial emittance the beam, which is determined by mean transverse energy (MTE) and laser spot size, one most important parameters determining beam quality. bialkali photocathodes illuminated visible have advantages quantum efficiency (QE) low MTE. Furthermore, Superconducting Radio Frequency (SRF) guns can operate in continuous wave (CW) mode at accelerating gradients,...