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将新监护仪引入临床麻醉

麻醉与镇痛 2009年第5期5卷 67-68页

作者： marcos F. vidal Melo Bruce J. Leone 刘畅(译) 郭曲练(校) Cardiac Anesthesia Group Department of Anesthesia and Critical CareMassachusetts General Hospital and Harvard Medical School Boston Massachusetts Department of Anesthesiology Mayo Clinic Jacksonville Florida 不详

麻醉医师们总是对于技术革新充满热情。作为科技和安全技术的前沿，麻醉领域日新月异的变革提高了患者安全性。从临床上广泛应用的CO2监测仪和脉搏血氧饱和度监测仪，到最近反映麻醉深度的脑电监测仪，电子和电脑技术的快速革新使得越... 详细信息

麻醉医师们总是对于技术革新充满热情。作为科技和安全技术的前沿，麻醉领域日新月异的变革提高了患者安全性。从临床上广泛应用的CO2监测仪和脉搏血氧饱和度监测仪，到最近反映麻醉深度的脑电监测仪，电子和电脑技术的快速革新使得越来越多的新技术将很快应用于临床实践。

关键词：临床麻醉血氧饱和度监测仪监护仪技术革新麻醉医师安全技术麻醉深度临床实践

Investigation of pore geometry influence on fluid flow in heterogeneous porous media:A pore-scale study

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Energy Geoscience 2024年第1期5卷 72-88页

作者： Ramin Soltanmohammadi Shohreh Iraji Tales Rodrigues de Almeida Mateus Basso Eddy Ruidiaz Munoz Alexandre Campane vidal Ingram School of Engineering Texas State UniversitySan MarcosTX78666USA Department of Mechanical Engineering(FEM) State University of Campinas(UNICAMP)CampinasSP13083-855Brazil Department of Geology and Natural Resources Geosciences Institute(IG)State University of Campinas(UNICAMP)CampinasSP13083-855Brazil Center of Energy and Petroleum Study(CEPETRO) State University of Campinas(UNICAMP)CampinasSP13083-855Brazil

Brazilian pre-salt reservoirs are renowned for their intricate pore networks and vuggy nature,posing significant challenges in modeling and simulating fluid flow within these carbonate *** possessing excellent petrophysical properties,such as high porosity and permeability,these reservoirs typically exhibit a notably low recovery factor,sometimes falling below 10%.Previous research has indicated that various enhanced oil recovery(EOR)methods,such as water alternating gas(WAG),can substantially augment the recovery factor in pre-salt reservoirs,resulting in improvements of up to 20%.Nevertheless,the fluid flow mechanism within Brazilian carbonate reservoirs,characterized by complex pore geometry,remains *** study examines the behavior of fluid flow in a similar heterogeneous porous material,utilizing a plug sample obtained from a vugular segment of a Brazilian stromatolite outcrop,known to share analogies with certain pre-salt *** conducted single-phase and multi-phase core flooding experiments,complemented by medical-CT scanning,to generate flow streamlines and evaluate the efficiency of water ***,micro-CT scanning of the core sample was performed,and two cross-sections from horizontal and vertical plates were *** cross-sections were then employed as geometries in a numerical simulator,enabling us to investigate the impact of pore geometry on fluid *** of the pore-scale modeling and experimental data unveiled that the presence of dead-end pores and vugs results in a significant portion of the fluid remaining stagnant within these ***,the injected fluid exhibits channeling-like behavior,leading to rapid breakthrough and low areal swept ***,the numerical simulation results demonstrated that,irrespective of the size of the dead-end regions,the pressure variation within the dead-end vugs and pores is *** the stromatolite's favorable petrophysica

关键词： Pore-scale modeling Pore geometry Flow streamlines Computational modeling Digital rock analysis

Lightweight Approach to Connect Business Rules with Aspects

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Journal of Software Engineering and Applications 2012年第2期5卷 76-84页

作者： Sandra Casas Claudia marcos Cecilia Fuentes Juan Enriquez Graciela vidal ISISTAN Universidad Nacional del Centro de la Pcia de Buenos Aires Tandil Argentina. UARG Universidad Nacional de la Patagonia Austral Rio Gallegos Argentina

Aspectual connection that compose business rule, refers to the code in charge of not only triggering the application of the rules at certain events, but also gathering the necessary information for their application and incorporating their results in the rest of the core application functionality. We propose an approach to connect business rule with aspect systematically. This approach is agile, programming language-independent, business rules type independent and it can be used in different stages of development. This approach considers the identification, analysis and construction of connections with aspects, (aspectual connection). We use our experience and previous works to define the initial steps, and complete them with the analysis of interactions and propose methods to implement aspectual connections code. We have developed a tool that supports this approach.

关键词： Business Rules Connection Aspectual Connections Interactions AOP Volatile Concerns AspectJ

Methodology for the Study of the Quality of CFRP Dry Drilling Based on Macrogeometrical and Dimensional Deviations

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World Journal of Engineering and Technology 2016年第3期4卷 200-205页

作者： J. Salguero S. R. Fernandez-vidal P. Mayuet J. M. Vazquez-Martinez M. Alvarez M. marcos Mechanical Engineering and Industrial Design Department University of Cadiz Cadiz Spain

Commonly, Carbon Fiber Reinforced Plastics (CFRP) aerospace elements need to be machined (drilling) for subsequent assembly operations, mainly riveting, taking a critical importance the quality requirements of the holes. Some of the adjustment defects that can be produced during the dry drilling of CFRP are related to macrogeometrical (diameter, D, and cylindricity, DC) deviations. This paper reports on the results of a study of the influence of the cutting parameters V (cutting speed) and f (feedrate) on the D and DC deviations in the dry drilling of CFRP. A particular procedure based on plastic hole replicas has been performed. Diameters deviations were acceptable in all the cases studied. Because of this, DC is the controlling factor for accepting the drilled holes. In the studied range, lowest cutting speeds and highest feedrates have allowed obtaining the minimum cylindricity deviation.

关键词： Dry Drilling CFRP Macrogeometrical Deviations Cylindricity Diameter