Interface Risk Reduction in an Integrated SURF-SPS Scope Execution

2021 ◽  
Author(s):  
Hemant Priyadarshi ◽  
Daniel Nickel ◽  
Seban Jose
Keyword(s):  
Risk Reduction ◽  
Qualitative Comparison ◽  
The Matrix ◽  
Execution Model ◽  
Execution Models

Abstract The paper provides a detailed estimation of the interfaces that exist in a split SURF-SPS execution model and provides a qualitative comparison to an integrated SURF-SPS execution model. A comprehensive matrix of dependencies between SURF and SPS is presented and is categorized into engineering, procurement, construction/fabrication and installation work packages. The matrix is used to illustrate the exact scope dependencies and thus, the sources of interfaces. A hypothetical greenfield development has been assumed to develop the interface matrix and to use it for comparison of the two execution models. The comparison also reveals how interfaces are naturally eliminated in an integrated SURF-SPS execution model. In each of the workstreams (E-P-C-I), top risks have been identified and monetary liability estimates for those risks have been provided. By transfer of these risks from company to contractor, monetary liability gets transferred to the contractor, thus, resulting in significant savings for operating companies. The following tangible results are provided in the paper: a) % of interface(s) reduced in the E-P-C-I areas; b) Risk reduction in monetary terms for operators – estimated values. This paper justifies the fact that there is a significant interface scope and risk reduction for operators, if they adopt an integrated SURF-SPS execution model.

How the science of injury prevention contributes to advancing home fire safety in the USA: successes and opportunities

2018 ◽  
Vol 24 (Suppl 1) ◽  
pp. i7-i13 ◽  
Author(s):  
Andrea C Gielen ◽  
Shannon Frattaroli ◽  
Keshia M Pollack ◽  
Corinne Peek-Asa ◽  
Jingzhen G Yang
Keyword(s):  
Injury Prevention ◽  
Risk Reduction ◽  
Ecological Model ◽  
Smoke Alarms ◽  
Community Risk ◽  
The Matrix ◽  
Control Research ◽  
The Usa ◽  
Reduction Methods ◽  
Community Environments

BackgroundIn the decades since the landmark report-America Burning-was published in 1973, the number of home fire deaths has shrunk from >5500 per year to 2650 in 2015. This paper: (1) describes how science and practice in injury prevention and fire and life safety contributed to successful interventions, and (2) identifies emerging strategies and future opportunities to prevent home fire-related deaths.MethodsThe aims are addressed through the lens of population health research, with a focus on the work of selected Centers for Disease Control and Prevention-funded Injury Control Research Centers. Results are organised using the Haddon Matrix and an ecological model.ResultsWe found evidence to support interventions that address all components of both the matrix and the model, including: reduced ignition propensity cigarettes, stop smoking campaigns, housing codes, residential sprinkler systems, smoke alarms, community risk reduction, school-based educational programmes, and fire and burn response systems. Future reductions are likely to come from enhancing residential sprinkler and smoke alarm technology, and increasing their utilisation; expanding the use of community risk reduction methods; and implementing new technological solutions. Despite the successes, substantial disparities in home fire death rates remain, reflecting underlying social determinants of health.ConclusionMost of the evidence-supported interventions were focused on changing the policy and community environments to prevent home fires and reduce injury when a fire occurs. Future prevention efforts should give high priority to addressing the continued disparities in home fire deaths.

A HYBRID SHARED MEMORY EXECUTION MODEL FOR A DATA PARALLEL LANGUAGE WITH I/O

2008 ◽  
Vol 18 (01) ◽  
pp. 23-37 ◽  
Author(s):  
CLEMENS GRELCK ◽  
STEFFEN KUTHE ◽  
SVEN-BODO SCHOLZ
Keyword(s):  
Program Analysis ◽  
Flow Characteristics ◽  
Parallel Execution ◽  
Parallel Language ◽  
Data Parallel ◽  
Execution Model ◽  
Execution Mode ◽  
Parallel Code ◽  
Execution Models ◽  
Compilation Techniques

We propose a novel execution model for the implicitly parallel execution of data parallel programs in the presence of general I/O operations. This model is called hybrid because it combines the advantages of the standard execution models fork/join and SPMD. Based on program analysis the hybrid model adapts itself to one or the other on the granularity of individual instructions. We outline compilation techniques that systematically derive the organization of parallel code from data flow characteristics aiming at the reduction of execution mode switches in general and synchronization/communication requirements in particular. Experiments based on a prototype implementation show the effectiveness of the hybrid execution model for reducing parallel overhead.

scholarly journals Structures à subordonnée comparative en français

2008 ◽  
Vol 31 (1) ◽  
pp. 11-61
Author(s):  
Catherine Fuchs ◽  
Nathalie Fournier ◽  
Pierre Le Goffic
Keyword(s):  
Semantic Representation ◽  
Subordinate Clause ◽  
Semantic Representations ◽  
Matrix Clause ◽  
Qualitative Comparison ◽  
Syntactic Structures ◽  
The Matrix

This article deals with syntactic and semantic representation of comparative structures in French. We propose an analysis of quantitative comparatives (plus, moins, aussi … que) and qualitative comparatives (comme) which highlights their common properties as well as their specificities. The first section (§ 1) offers a syntactic typology of matrix clause structures and (comparative) subordinate clause structures. The following sections consider the various aspects of semantic representations, as related to syntactic structures : we successively deal with (§ 2.) the type of parameter, (§ 3.) the type of differential constituant in the subordinate clause, (§ 4.) the type of parallel constituant in the matrix clause (with restitution of ellipses and anaphora), (§ 5.) the type of compared terms, by contrasting quantitative comparisons and qualitative comparison, and (§ 6.) the type of comparison, accounting for prototypical structures as well as for pragmatic effects induced by certain configurations.

How Health Care Setting Affects Prenatal Providers' Risk Reduction Practices: A Qualitative Comparison of Settings

2007 ◽  
Vol 45 (2) ◽  
pp. 41-57 ◽  
Author(s):  
Paul Gilbert ◽  
Karen Herzig ◽  
Dhara Thakar ◽  
Joyce Viloria ◽  
Alyssa Bogetz ◽  
...  
Keyword(s):  
Health Care ◽  
Risk Reduction ◽  
Care Setting ◽  
Health Care Setting ◽  
Qualitative Comparison

scholarly journals A Survey of IoT Stream Query Execution Latency Optimization within Edge and Cloud

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Fatima Abdullah ◽  
Limei Peng ◽  
Byungchul Tak
Keyword(s):  
Query Processing ◽  
Streaming Data ◽  
Query Execution ◽  
Cloud Environment ◽  
Future Directions ◽  
Stream Query Processing ◽  
Execution Model ◽  
Iot Devices ◽  
Edge Based ◽  
Execution Models

IoT (Internet of Things) streaming data has increased dramatically over the recent years and continues to grow rapidly due to the exponential growth of connected IoT devices. For many IoT applications, fast stream query processing is crucial for correct operations. To achieve better query performance and quality, researchers and practitioners have developed various types of query execution models—purely cloud-based, geo-distributed, edge-based, and edge-cloud-based models. Each execution model presents unique challenges and limitations of query processing optimizations. In this work, we provide a comprehensive review and analysis of query execution models within the context of the query execution latency optimization. We also present a detailed overview of various query execution styles regarding different query execution models and highlight their contributions. Finally, the paper concludes by proposing promising future directions towards advancing the query executions in the edge and cloud environment.

scholarly journals Execution Model to Reduce the Interference of Shared Memory in ARINC 653 Compliant Multicore RTOS

2020 ◽  
Vol 10 (7) ◽  
pp. 2464
Author(s):  
Sihyeong Park ◽  
Mi-Young Kwon ◽  
Hoon-Kyu Kim ◽  
Hyungshin Kim
Keyword(s):  
Execution Time ◽  
Software Verification ◽  
Main Memory ◽  
Critical Systems ◽  
Multicore Architectures ◽  
L2 Cache ◽  
Execution Model ◽  
Time Division ◽  
L1 And L2 ◽  
Execution Models

Multicore architecture is applied to contemporary avionics systems to deal with complex tasks. However, multicore architectures can cause interference by contention because the cores share hardware resources. This interference reduces the predictable execution time of safety-critical systems, such as avionics systems. To reduce this interference, methods of separating hardware resources or limiting capacity by core have been proposed. Existing studies have modified kernels to control hardware resources. Additionally, an execution model has been proposed that can reduce interference by adjusting the execution order of tasks without software modification. Avionics systems require several rigorous software verification procedures. Therefore, modifying existing software can be costly and time-consuming. In this work, we propose a method to apply execution models proposed in existing studies without modifying commercial real-time operating systems. We implemented the time-division multiple access (TDMA) and acquisition execution restitution (AER) execution models with pseudo-partition and message queuing on VxWorks 653. Moreover, we propose a multi-TDMA model considering the characteristics of the target hardware. For the interference analysis, we measured the L1 and L2 cache misses and the number of main memory requests. We demonstrated that the interference caused by memory sharing was reduced by at least 60% in the execution model. In particular, multi-TDMA doubled utilization compared to TDMA and also reduced the execution time by 20% compared to the AER model.

scholarly journals Modelling Reliability of Henhouse Microclimate Systems with Risk Analysis Approaches

2017 ◽  
Vol 21 (3) ◽  
pp. 47-60
Author(s):  
Jerzy Napiórkowski ◽  
Jarosław Gonera
Keyword(s):  
Risk Analysis ◽  
Risk Reduction ◽  
Ventilation System ◽  
Probabilistic Approach ◽  
Analysis Approach ◽  
Technical Equipment ◽  
Poultry Farm ◽  
Safety Level ◽  
Poultry Farms ◽  
The Matrix

AbstractThe paper presents the issue of modelling reliability of microclimate. It is very important to conduct the risk analysis in poultry farms in order to indicate the most dangerous elements of the discussed system in the aspect of maintaining usefulness. The main objective of the paper was to carry out the risk analysis for the system that maintains microclimate in a poultry farm. It was assumed in the paper that the ventilation system influences maintaining microclimate in a henhouse. Simultaneously, the most effective methods of risk reduction are indicated and a rational assessment of the safety level is made. Studies carried out in the paper enabled identification of the risk analysis approach which the best reflects the issue of maintaining technical equipment devices in operation. With the use of the matrix, the indicator and probabilistic approach, the exploitation risk related to the occurrence of previously defined failures of the henhouse ventilation system was assessed. Based on the results of analysis, a conclusion could have been made that concurrent results were obtained with the use of the matrix and probabilistic approaches. In these cases, for all failures the highest and the lowest exploitation risks of occurrence of certain failures in the ventilation system in a henhouse were the same.

A DOMAIN-SPECIFIC LANGUAGE TO DESIGN ENTERPRISE APPLICATION INTEGRATION SOLUTIONS

2011 ◽  
Vol 20 (02) ◽  
pp. 143-176 ◽  
Author(s):  
RAFAEL Z. FRANTZ ◽  
ANTONIA M. REINA QUINTERO ◽  
RAFAEL CORCHUELO
Keyword(s):  
Graphical Model ◽  
Enterprise Application Integration ◽  
Application Integration ◽  
Domain Specific ◽  
Enterprise Application ◽  
Execution Model ◽  
Software Engineers ◽  
Set Up ◽  
Execution Models ◽  
Java Code

Enterprise Application Integration (EAI) solutions cope with two kinds of problems within software ecosystems, namely: keeping a number of application's data in synchrony or creating new functionality on top of them. Enterprise Service Bus (ESB) provides the technology required to implement a variety of EAI solutions at sensible costs, but they are still far from negligible. It is not surprising then that many authors are working on proposals to endow them with domain-specific tools to help software engineers reduce integration costs. In this article, we introduce a proposal called Guaraná. Its key features are as follows: it provides explicit support to devise EAI solutions using enterprise integration patterns by means of a graphical model; its DSL enables software engineers to have not only the view of a process, but also a view of the whole set of processes of which an EAI solution is composed; both processes and tasks can have multiple inputs and multiple outputs; and, finally, its runtime system provides a task-based execution model that is usually more efficient than the process-based execution models in current use. We have also implemented a graphical editor for our DSL and a set of scripts to transform our models into Java code ready to be compiled and executed. To set up a solution from this code, a software engineer only needs to configure a number of adapters to communicate with the applications being integrated.

Crystalloid Inclusions in Hepatocyte Mitochondria and Their Similarity to Cytoplasmic Crystalloids

1974 ◽  
Vol 32 ◽  
pp. 198-199
Author(s):  
Odell T. Minick ◽  
Hidejiro Yokoo
Keyword(s):  
Liver Disease ◽  
Alcoholic Liver Disease ◽  
Special Interest ◽  
Structural Variations ◽  
Mitochondrial Alterations ◽  
The Matrix ◽  
Crystalloid Inclusions ◽  
Liver Biopsies

Mitochondrial alterations were studied in 25 liver biopsies from patients with alcoholic liver disease. Of special interest were the morphologic resemblance of certain fine structural variations in mitochondria and crystalloid inclusions. Four types of alterations within mitochondria were found that seemed to relate to cytoplasmic crystalloids.Type 1 alteration consisted of localized groups of cristae, usually oriented in the long direction of the organelle (Fig. 1A). In this plane they appeared serrated at the periphery with blind endings in the matrix. Other sections revealed a system of equally-spaced diagonal lines lengthwise in the mitochondrion with cristae protruding from both ends (Fig. 1B). Profiles of this inclusion were not unlike tangential cuts of a crystalloid structure frequently seen in enlarged mitochondria described below.

Coherency loss in γ' precipitates in nickel-base superalloy

1983 ◽  
Vol 41 ◽  
pp. 244-245
Author(s):  
R. A. Ricks ◽  
Angus J. Porter
Keyword(s):  
Lattice Mismatch ◽  
Lattice Parameter ◽  
Nickel Base Superalloy ◽  
Large Size ◽  
The Matrix ◽  
Nimonic 80A ◽  
Interfacial Dislocations ◽  
Nickel Base ◽  
Coherency Loss ◽  
Nimonic 115

During a recent investigation concerning the growth of γ' precipitates in nickel-base superalloys it was observed that the sign of the lattice mismatch between the coherent particles and the matrix (γ) was important in determining the ease with which matrix dislocations could be incorporated into the interface to relieve coherency strains. Thus alloys with a negative misfit (ie. the γ' lattice parameter was smaller than the matrix) could lose coherency easily and γ/γ' interfaces would exhibit regularly spaced networks of dislocations, as shown in figure 1 for the case of Nimonic 115 (misfit = -0.15%). In contrast, γ' particles in alloys with a positive misfit could grow to a large size and not show any such dislocation arrangements in the interface, thus indicating that coherency had not been lost. Figure 2 depicts a large γ' precipitate in Nimonic 80A (misfit = +0.32%) showing few interfacial dislocations.

Sign in / Sign up

Export Citation Format

Share Document