Search results for "imulation"

Opioid-Sensitive Peripheral Neuronal Activity in the Modulation of Gastric Mucosal Injury

1991

There is growing evidence that capsaicin-sensitive afferent neurones participate in the protective mechanisms of the gastric mucosa against damage. Animals pretreated systemically with capsaicin, at doses that lead to the ablation of capsaicin-sensitive afferent neurons, show an increase in the level of macro-scopically apparent mucosal damage in different experimental models of ulceration (Szolcsanyi and Bartho, 1981; Holzer and Sametz, 1986). Furthermore, acute stimulation with capsaicin of afferent nerve endings located in the gastric mucosa protects against different ulcerogenic mechanisms (Szolcsanyi and Bartho, 1981; Holzer and Lippe, 1988; Holzer et al., 1989).

Diagnostic Localizing Value of the Electrically Elicited Blink Reflex

1993

The blink reflex (BlinkR) following electrical stimulation of the supraorbital nerve consists of an early ipsilateral reflex component (R1) and bilateral late reflex components ipsilaterally (R2) and contralateral (R2c). An additional, and even later component, also bilateral, R3, R3c was first described by Penders and Delwaide [34] and so far has not been studied systematically.

Large-eddy simulations of turbulent flow with heat transfer in simple and complex geometries using Harwell-FLOW3D

1996

Abstract Large-eddy simulation (LES) results are presented and discussed for the turbulent flow with heat transfer in different geometrical configurations, including a plane channel, a channel bearing transverse square ribs on one of the walls, and a crossed-corrugated air heater. They were obtained using the computational fluid dynamics (CFD) code Harwell-FLOW3D (Release 2), finite-volume grids having up to 423 nodes, and the Smagorinsky subgrid model with several variants regarding near-wall damping and wall boundary conditions. The first problem (plane turbulent Poiseuille flow with heat transfer) was mainly used as a benchmark to investigate the influence of numerical methods (pressure-…

Sacral neurostimulation and neuromodulation in urological practice

2000

The problems associated with treating various forms of lower tract dysfunction by electrical stimulation are reflected in the many years of basic and clinical research in this area. However, better understanding of both neuroanatomy and neurophysiology, and development of new technologies have led to further application of electrical current to restore impaired bladder function. Contemporary knowledge of the potential for both sacral neurostimulation and neuromodulation as a therapeutic option for lower urinary tract dysfunction is reviewed.

Influence of online shopping information dependency and innovativeness on internet shopping adoption

2008

PurposeThe paper's purpose is to analyse the influence of online shopping information dependency and innovativeness on the acceptance of internet shopping.Design/methodology/approachThe impact of online shopping information dependency, domain‐specific innovativeness and technology acceptance model (TAM) variables on future shopping intention has been tested through structural equation modelling techniques. The sample consisted of 465 Spanish consumers who had never purchased online.FindingsData analysis shows that consumer innovativeness and online shopping information dependency have a direct and positive influence on future online shopping intention and that the basic TAM hypotheses are f…

Artificial Social Ethics: Simulating Culture, Conflict, and Cooperation

2020

In recent years advances in computational modeling and social simulation technologies have enabled scientists to identify some of the conditions under which – and the mechanisms by which – conflict and cooperation within and across human cultures are likely to emerge. There are significant ethical concerns surrounding the increased capacity and growing use of such computer tools to guide public policy discussions. The purpose of this paper is to propose and promote an "artificial social ethics" approach to addressing these concerns and illustrate its application in relation to three agent-based models implemented within the Artificial Society Analytics Platform. We conclude with a brief dis…

Establishing standards for neuronavigated TMS in research and clinical studies

2016

Multifocal TMS for temporo-spatial description of cortico-cortical connectivity patterns

2016

IMPROVING CNC MACHINE TOOLS ACCURACY USING MODELING AND COMPUTER SIMULATION TECHNIQUES

2007

Abstract The position was one of the first parameters that required the introduction of automatic control process. One of the most representative applications is represented by the feed drives of the computer numerically controlled (CNC) machine tools. Today, it is possible to use computer simulation techniques in analysing and synthesising position control systems. Thus, the behaviour of the CNC machine tools feed drives can be treated much more realistically. It is the purpose of this paper to show how simulation can be used to accurately represent, predict and improve the performance of a CNC machine tool feed servo drives.

Combined Endo- and Exoscopic Semi-robotic Manipulator System for Image Guided Operations

2006

This paper describes the development of a robotic assistance system for image guided operations. To minimize operation time, a multimodal user interface enables freehand robotic manipulation of an extracorporeal stereoscopic digital camera (exoscope) and an endoscope. The surgeon thereby wears a head-mounted unit with a binocular display, a head tracker, a microphone and earphones. Different view positioning and adjustment modes can be selected by voice and controlled by head rotation while pressing a miniature confirmation button with a finger. Initial studies focused on the evaluation and optimization of the intuitiveness, comfort and precision of different modes of operation, including a…