Diamond Model
Mostrando 1-12 de 38 artigos, teses e dissertações.
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1. Countries’ governance and competitiveness: business environment mediating effect
Abstract Purpose The purpose of this study is to analyze how institutional governance and business environment affect countries’ competitiveness and their relative importance. Design/methodology/approach In this paper, the authors analyze how institutional governance and business environment affect countries’ competitiveness, their relative importance
RAUSP Management Journal. Publicado em: 2022
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2. Geostatistical simulations with heterotopic hard and soft data without modeling the linear model of coregionalization
Abstract Most mining decisions are based on models estimated/simulated given the information obtained from samples. During the exploration stage, samples are commonly taken using diamond drill holes which are accurate and precise. These samples are considered hard data. In the production stage, new samples are added. These last are cheaper and more abundant
REM, Int. Eng. J.. Publicado em: 2021-06
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3. Polymicrobial Leakage and Retention of MTA and Portland Cement in a Model of Apexification
Abstract Objective: To evaluate the sealing capacity and retention of apical barriers made with mineral trioxide aggregate (MTA) and Portland cement (PC). Material and Methods: Fifty-six bovine incisors were sectioned 8 mm above and 12 mm below the cement-enamel junction. The root canal was enlarged with a diamond drill to create a standard 2.5 mm diameter
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 13/01/2020
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4. An Extended Linear Discontinuous Method for One-group Fixed Source Discrete Ordinates Problems with Isotropic Scattering in Slab Geometry
RESUMO Atualmente, a obtenção de uma solução numérica precisa para problemas de fonte fixa em ordenadas discretas é relevante em muitas áreas da engenharia e das ciências. Neste trabalho, estendemos o método híbrido Elementos Finitos-Espectro Nodal (FEM-SGF), que foi originalmente desenvolvido para resolver problemas de autovalores de difusão, par
TEMA (São Carlos). Publicado em: 30/05/2019
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5. Water jet tunneling: a theoretical advanced rate evaluation
Abstract Tunnel Boring Machines play an important role in the underground infrastructure execution of modern cities. They weigh thousands of tons and measure hundreds of meters besides utilizing high powered energy in the excavation process. Although being well established, they are based on a last century design approach and they are not compatible anymore
REM, Int. Eng. J.. Publicado em: 2018-04
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6. Improving short-term grade block models: alternative for correcting soft data
Abstract Short-term mining planning typically relies on samples obtained from channels or less-accurate sampling methods. The results may include larger sampling errors than those derived from diamond drill hole core samples. The aim of this paper is to evaluate the impact of the sampling error on grade estimation and propose a method of correcting the impre
REM, Int. Eng. J.. Publicado em: 2018-03
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7. New concept of tunnel boring machine: high performance using water jet and diamond wire as rock cutting technology
Abstract Tunnel boring machines are important tools in underground infrastructure projects. Although being well established equipment, these machinesare based on designsof more than 60 years ago and are characterized by big dimensions, enormous weight and high power consumption. Commercial aspects should be noted too. The model adopted by the TBM industry re
REM, Int. Eng. J.. Publicado em: 2018-03
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8. Influence of chloride-mediated oxidation on the electrochemical degradation of the direct black 22 dye using boron-doped diamond and β-PbO2 anodes
The Direct Black 22 dye was electrooxidized at 30 mA cm-2 in a flow cell using a BDD or β-PbO2 anode, varying pH (3, 7, 11), temperature (10, 25, 45 °C), and [NaCl] (0 or 1.5 g L-1). In the presence of NaCl, decolorization rates were similar for all conditions investigated, but much higher than predicted through a theoretical model assuming mass-transport
Quím. Nova. Publicado em: 2014
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9. Does the contact time of alginate with plaster cast influence its properties?
The aim of this study was to verify the influence of the time of contact between alginate and gypsum after the modeling procedure on the properties of the plaster cast, such as surface detail, dimensional stability and microhardness. Thirty cylindrical specimens of orthodontic gypsum Type III were made by means of impressions of a stainless steel master mode
Brazilian Oral Research. Publicado em: 20/03/2012
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10. Enriching Information to Prevent Bank Runs
Sequential service in the banking sector, as modeled by Diamond and Dybvig (1983), is a barrier to full insurance and potential source of financial fragility against which deposit insurance is infeasible (Wallace, 1988). In this paper, we pursue a different perspective, viewing the sequence of contacts as opportunities to extract information through a larger
Escola de Pós-Graduação em Economia da FGV. Publicado em: 27/07/2011
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11. A note on convergence of Peck-Shell and Green-Lin mechanisms in the Diamond-Dybvig model
We study the e¤ects of population size in the Peck-Shell analysis of bank runs. We nd that a contract featuring equal-treatment for al- most all depositors of the same type approximates the optimum. Because the approximation also satis es Green-Lin incentive constraints, when the planner discloses positions in the queue, welfare in these alternative spec-
Escola de Pós-Graduação em Economia da FGV. Publicado em: 27/07/2011
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12. Avaliação do potencial erosivo do suco de laranja modificado pela adição de caseína e ovalbumina / Evaluation of the erosive potential of an orange juice modified by the addition of casein and ovalbumin [dissertation
The erosive potential of a modified orange juice by addition of casein, ovalbumin and its combination, on human enamel and root dentin was evaluated in this in vitro study. Two dietary proteins, 0.2 g/l casein (CAS), 2.0 g/l ovalbumin (OVA) and their combination (CAS + OVA) were added to a commercially available orange juice. The juice with no additives was
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/06/2011