Gate spacers etching of Si3N4 using cyclic approach for 3D CMOS devices

2021 ◽  
Vol 39 (3) ◽  
pp. 033005
Author(s):  
Valentin Bacquié ◽  
Aurélien Tavernier ◽  
François Boulard ◽  
Olivier Pollet ◽  
Nicolas Possémé
Keyword(s):  
Cyclic Approach

Importance Sampling and the Cyclic Approach

2001 ◽  
Vol 49 (6) ◽  
pp. 900-912 ◽  
Author(s):  
Sandeep Juneja
Keyword(s):  
Importance Sampling ◽  
Cyclic Approach

A cyclic approach on classical ruin model

2020 ◽  
Vol 91 ◽  
pp. 104-110
Author(s):  
Fei Lung Yuen ◽  
Wing Yan Lee ◽  
Derrick W.H. Fung
Keyword(s):  
Cyclic Approach

Cyclic Approach to Airport Pavement Management Based on Non-Destructive Deflection Testing

2013 ◽  
Vol 723 ◽  
pp. 1019-1026
Author(s):  
Andrea Graziani ◽  
Andrea Grilli ◽  
Dania Miconi ◽  
Carlotta Godenzoni
Keyword(s):  
Pavement Management ◽  
Pavement Management System ◽  
Structural Evaluation ◽  
Airport Pavement ◽  
Pdca Cycle ◽  
Invaluable Tool ◽  
Deflection Test ◽  
Cyclic Approach ◽  
Non Destructive

The Authors describe the role of non-destructive deflection tests in Airport Pavement Management System (APMS) presenting the experience developed at an Italian Airport. An original approach to APMS implementation is illustrated, based on the PDCA cycle for quality control and continuous improvement of processes. An example application for the management of the runway pavement is described. Deflection test results obtained in four tests campaign carried out over a ten years period were globally analyzed to obtain pavement bearing capacity evolution and demonstrate the effectiveness of cyclic approach to pavement management. It is showed that structural evaluation can be an invaluable tool in pavement management and assist planning activities in the medium and long term.

A Simulation Study on Max Pressure Control of Signalized Intersections

2018 ◽  
Vol 2672 (18) ◽  
pp. 117-127 ◽  
Author(s):  
Xiaotong Sun ◽  
Yafeng Yin
Keyword(s):  
Simulation Study ◽  
Control Strategy ◽  
Network Performance ◽  
Pressure Control ◽  
Local Information ◽  
Signalized Intersections ◽  
Signal Control ◽  
Traffic Signal Control ◽  
Distributed Approach ◽  
Cyclic Approach

In this paper, a decentralized traffic signal control strategy named max pressure control is reviewed and examined. This control strategy aims at optimizing overall network throughputs, but applies a distributed approach that only requires local information to generate timing plans for each intersection. A Vissim simulation study is conducted to compare existing max pressure schemes. The results show that a recently proposed cyclic-based approach performs more poorly than the original non-cyclic approach. Further, to address two issues that hinder existing schemes: frequent changes of phase and queue spillover/blockage, two modifications are suggested. The simulation reveals that network performance can be improved after modifications.

Simulation of Fatigue Crack Growth Using XFEM

2020 ◽  
Author(s):  
Durlabh Bartaula ◽  
Yong Li ◽  
Smitha Koduru ◽  
Samer Adeeb
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Elastic Material ◽  
Low Cycle Fatigue ◽  
Material Behavior ◽  
Plastic Behavior ◽  
Linear Elastic Material ◽  
Linear Elastic ◽  
Cyclic Approach

Abstract Pipelines carrying oil and gas are susceptible to fatigue failure (i.e., unstable fatigue crack propagation) due to fluctuating loading such as varying internal pressure and other external loadings. Fatigue crack growth (FCG) prediction through full-scale pipe tests can be expensive and time consuming, and experimental data is limited particularly in the face of large uncertainty involved. In contrast, numerical simulation techniques (e.g., XFEM) can be alternative to study the FCG, given that numerical models can be theoretically and/or experimentally validated with reasonable accuracy. In this study, capabilities and limitations of existing fatigue analysis code (e.g., direct cyclic approach with XFEM) in Abaqus for low cycle fatigue simulation are explored for compact-tension (CT) specimens and pipelines assuming linear elastic material behavior. The simulated FCG curve for a CT specimen is compared with that obtained from the analytical method using the stress intensity factor prescribed in ASTM E647. However, for real pipelines with elastic-plastic behavior, direct cyclic approach is not suitable, and an indirect cyclic approach is used based on the fracture energy parameters (e.g., J integral) calculated using XFEM in Abaqus. FCG law (e.g., power law relationship like Paris law) is used to generate the fatigue crack growth curve. For comparison, the FCG curve obtained through direct cyclic approach for pipelines assuming linear elastic material is also presented. The comparative studies here indicate that XFEM-based FCG simulation using appropriate techniques can be applied to pipelines for fatigue life prediction.

scholarly journals Influence of Cyclical Patterns on Innovation and Transformation Processes in the Economy

2020 ◽  
Vol 11 (1) ◽  
pp. 44-58
Author(s):  
G. A. Shcherbakov
Keyword(s):  
Method Development ◽  
Innovation Policy ◽  
Innovation Process ◽  
The State ◽  
General Idea ◽  
Theoretical Research ◽  
Innovation Activities ◽  
Wide Range ◽  
Cyclic Approach

Purpose: the main purpose of this article is to present and develop a cyclic approach in the theory of innovation. This section of economic theory is based on the understanding of the innovation process as a dynamic system that develops (depending on the type of innovation) within the medium or long-term cycle. The cyclic approach has an insufficiently studied subject of research. In theoretical and practical aspects, this approach is very poorly developed, despite its prospects for this method. The application of the cyclic approach in the practical sphere will increase the effectiveness of activities planning in the field of the state innovation policy, as well as increase the efficiency of the state resources using.Methods: a set of methods of theoretical research is used, including: logical, system and abstract methods, as well as specific scientific (special) research methods. Based on the study of a wide range of scientific literature, as well as statistical and factual information on innovative issues, models (modeling method) were drawn up, which were graphically fixed in the figures illustrating the main provisions of the article.Results: this article develops the cyclic approach to the innovations study, proposed in the works of foreign and domestic scientists. The article describes and presents a scientific method of innovative processes management, called "triad of innovative and transformative activity". The article also contains a brief overview of the cyclic method development in the works of domestic and foreign researchers, giving a general idea of the elaboration degree of the scientific question.Conclusions and Relevance: the analysis of the main theories and concepts in the field of innovation, gives reason to argue that scientific views on the implementation of the innovation process contain a serious omission. It consists in the fact that it does not take into account the influence of cyclical conditions of various medium-term cycle phases or long-term cycle stages. In practice, this leads to asynchronous processes that prevent the effective innovation activities.

Observations on static and cyclic sand-liquefaction methodologies

1992 ◽  
Vol 29 (4) ◽  
pp. 650-665 ◽  
Author(s):  
E. C. McRoberts ◽  
J. A. Sladen
Keyword(s):  
Steady State ◽  
Common Ground ◽  
Input Parameter ◽  
Liquefaction Potential ◽  
Sand Liquefaction ◽  
Cyclic Mobility ◽  
State Of Practice ◽  
Traditional Approaches ◽  
Future Work ◽  
Cyclic Approach

The paper focuses on a review of elements of the liquefaction of sand. Consideration is given to both the static and cyclic approach, and the bases for many of the divergent opinions that currently exist are given. The objective of the paper is to state the arguments and to explore common ground. By considering the inconsistencies that currently exist it is hoped that future work will address issues raised. The real difficulties associated with measurement of the parameters necessary for existing design approaches are highlighted. Because of these difficulties, it is prudent to consider several methods when evaluating liquefaction potential, and practising engineers must often rely on traditional approaches. The state of practice would be improved more by research to address these difficulties than by the development of more elaborate methods of analysis, which are often not justified by the level of precision associated with input parameter measurements. Key words : liquefaction, steady-state, cyclic mobility, critical state.

XPS study of a selective GaN etching process using self-limiting cyclic approach for power devices application

2020 ◽  
Vol 228 ◽  
pp. 111328
Author(s):  
Frédéric Le Roux ◽  
Nicolas Possémé ◽  
Pauline Burtin ◽  
Sébastien Barnola ◽  
Alphonse Torres
Keyword(s):  
Etching Process ◽  
Power Devices ◽  
Xps Study ◽  
Gan Etching ◽  
Cyclic Approach
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