Dimension Technologies (United States)

Nuclear fusion startups have emerged over the past decade, raising more than ten billion dollars in private funding; this industry has the potential to create 3.6 trillion dollars in economic value before the end of this century. As a zero-carbon, abundant, and baseload energy source, fusion has the potential to offset alternative power sources that emit greenhouse gases and contribute to climate change. Governments can support the fusion industry through various public-private partnership models that can be structured and funded through different policy options. State governments can provide loans, tax credits, infrastructure, permits, workforce development, grants, and matching funds. National governments can write fusion regulations, accelerate patent processing, fund new user facilities, and create vouchers to access publicly funded resources. Publicly funded resources include test facilities, government-owned codes, government contractors and employees, computing centers, and fusion test data. This analysis looks at the effectiveness of different policy options for state governments to support the maturation of the pulsed power industry for fusion companies. It starts with the forecasted pulsed power requirements for different fusion reactor types,s including mirrors, stellarators, tokamaks, inertial fusion energy, and pinches. These needs are then compared to the current state of commercially available pulsed power hardware, and technical gaps are identified. There is a discussion of ways these gaps could be closed - with the associated funding, human capital, facilities, and organizational structures. The analysis then reviews the various policy options for state lawmakers and evaluates how effective each option is in supporting pulsed power maturation.

This paper investigates the evolving subject areas required in management programs within business schools over a two-decade period through a survey of Iranian managers. The study identifies six clusters of subject areas and visually presents the evolving learning needs. It addresses the significance of the marketability and employability of graduates from management programs, contextualizing management education, fostering adaptability, and conducting cross-cultural studies. The paper discusses limitations and offers recommendations for future research, including the impact of cultural and contextual factors on management education. It argues that in today's rapidly changing business landscape, management programs must adopt a comprehensive and flexible approach to meet the diverse learning needs of managers from various backgrounds, ensuring the continued relevance and effectiveness of management education in preparing future leaders to address the dynamic business challenges.

The development of virtual reality (VR) and augmented reality (AR) technologies has drawn great attention in recent times due to the wide variety of applications they can enable, spanning from surgery training to motion capture and everyday users in VR spaces. In order to further enhance the user experience, real-time and accurate orientation detection of the user, the authors propose the usage of a Frequency-Modulated Continuous-Wave (FMCW) radar system with an ultra-low-power, sticker-like mmID that is comprised of four backscattering elements that are multiplexed in amplitude, frequency, and spatial domains in order to train a supervised learning KNN-model for accurate real-time 3-axis orientation detection. The proposed orientation detection system achieves a very good (91.72%) accuracy over three axes at 7 m, highlighting the precise orientation detection of the system for medium-range VR/AR applications.

Solid particle erosion occurs when small high speed particles impact surfaces. It can be either destructive such as in the erosion of oil pipelines by corrosion byproducts, or constructive such as in abrasive jet machining processes. Two dimensional finite element (FE) models of single rhomboid particles impact on a copper target were developed using two different techniques to deal with the problem of element distortion: (i) element deletion, and (ii) remeshing. It was found that the chip formation and the material pile-up, two phenomena that cannot be simulated using a previously developed rigid-plastic model, could be simulated using the FE models, resulting in a good agreement with experiments performed using a gas gun. However, remeshing in conjunction with a failure model caused numerical instabilities. The element deletion approach also induced errors in mass loss due to the removal of distorted elements. To address the limitations of the FE approach, smoothed particle hydrodynamics (SPH) which can better accommodate large deformations, was used in the simulation of the impact of single rhomboid particles on an aluminum alloy target. With appropriate constitutive and failure parameters, SPH was demonstrated to be suitable for simulating all of the relevant damage phenomena observed during impact experiments. A new methodology was developed for generating realistic three dimensional particle geometries based on measurements of the size and shape parameter distributions for a sample of 150 µm nominal diameter angular aluminum oxide powder. The FE models of these generated particles were implemented in a SPH/FE model to simulate non-overlapping particle impacts. It was shown that the simulated particles produced distributions of crater and crater lip dimensions that agreed well with those measured from particle blasting experiments. Finally, a numerical model for simulating overlapping impacts of angular particles was developed and compared to experimental multi-particle erosion tests, with good agreement. An investigation of the simulated trajectory of the impacting particles revealed various erosion mechanisms such as the micromachining of chips, the ploughing of craters, and the formation, forging and knocking off crater lips which were consistent with previously noted ductile solid particle erosion mechanisms in the literature.

La enorme crisis sanitaria y social que ha provocado la COVID-19 ha requerido la activación de

<p>This document presents the results of the project MeDDII - Metrology for drug delivery regarding the four technical objectives.  </p>

El objetivo de este artculo es analizar la presencia y desempeo de los mdicos de ciudad en La Araucana, en su calidad de funcionarios estatales al servicio del control del territorio. Fijaremos nuestro trabajo en la

This article discusses the design and performance of planar capacitors built as pairs of conductive plates by additive manufacturing as part of an electronic circuit board. This article covers several geometries and layers of parallel plates that allow for different capacitance values, from a few picofarads (pF) to several nanofarads (nF). The dc, ac, and radio frequency (RF) characterization demonstrated superior performance compared to off-the-shelve surface mount device (SMD) capacitors up to 20 GHz. The additively manufactured capacitors exhibit breakdown voltages in excess of 1 kV and subpicoampere leakage currents, while the change in RF impedance changes, as a function of frequency, is a factor of $3\times $ smaller than SMD capacitors.

A novel spatiotemporal filtering formalism is proposed as means to further improve SNR realization in Near-Infrared Optical Coherence Tomography (NI/OCT) imaging applications. As is well known noise filtering on such images is rendered more difficult with presence of characteristic multiplicative ‘speckle’ noise processes that preclude direct application of standard LTI techniques. In this work, we first demonstrate OCT noise may be approximated as an additive source for which a significant noise/signal cross-correlation is present. With this approximation, we then develop a spatiotemporal noise filter formalism based upon an MMSE optimal Wiener principle. Noise filtering is then applied along space/time axes based upon a multi-slice, motion-compensated estimation process. In benchmark application to OCT volume data, this filter is shown to exhibit desirable properties of sharply reduced noise variance without distortion or blurring characteristic of more simple filtering schemes.