AN EXTENSIBLE ARCHITECTURE-BASED FRAMEWORK FOR COORDINATION LANGUAGES

2004 ◽  
Vol 13 (01) ◽  
pp. 37-61
Author(s):  
TORSTEN FINK ◽  
KARSTEN OTTO
Keyword(s):  
Middle Layer ◽  
Distributed Applications ◽  
Target System ◽  
Layered Architecture ◽  
Component Systems ◽  
Coordination Languages ◽  
Coordination Systems ◽  
Coordination Framework ◽  
Time Overhead ◽  
Different Levels

The dynamic and heterogeneous nature of distributed systems makes the development of distributed applications a difficult task. Various tools, such as middleware systems, component systems, and coordination languages, offer support the application developer at different levels. There are several coordination systems that integrate such tools into a complete environment to build applications from heterogeneous components. To achieve extensibility they usually have a layered architecture: an application is first mapped to a middle layer and then to a target system. But this approach hides the specific features of a target system from the developer, as they are not represented in the middle layer, and often induces additional run-time overhead. In this paper, we introduce the extensible coordination framework ECF that allows developers to build efficient distributed applications which exploit the specific features of the target systems. Support for target systems and application domains are encapsulated by extension modules. Modules can be built on top of other modules to support refined functionality.

scholarly journals PSYCHOCORRECTION INTERVENTIONS, DIRECTED TO LEVELING ONTONOPHOBIC REACTIONS IN CHILDREN WITH AUTISM

2019 ◽  
pp. 28-34
Author(s):  
Valeriia Dats ◽  
Vadim Chuhunov
Keyword(s):  
Mental Health ◽  
Autism Spectrum Disorders ◽  
Children With Autism ◽  
Autism Spectrum ◽  
Target System ◽  
Dental Diseases ◽  
Spectrum Disorders ◽  
Different Levels

Aim of the study was to form target system of clinical correction, based on the analysis of pathogenesis factors of odontophobic reactions in children with autism.Materials and methods: 30 children with various dental diseases which had a concomitant diagnosis of autism spectrum disorders and showed odontophobic reactions were examined. The detection of odontophobic reactions was performed using the ethological method.The results of the search for targets for psychocorrection interventions at each level of presentation of each pathological phenomenon, which determine the development of odontophobic reactions in children with different levels of mental health, allow us to formulate a targeted model of adaptation to the conditions of dental admission.Conclusions: psychocorrection interventions aimed at leveling odontophobic reactions of stenic-negativistic, insulating and transaffective type in children with autism are formulated by modifying the basic phenomena of their pathogenesis (fencing, stereotypes, and anancasms).

scholarly journals Kinetochore structure: electron spectroscopic imaging of the kinetochore.

1989 ◽  
Vol 108 (4) ◽  
pp. 1209-1219 ◽  
Author(s):  
J B Rattner ◽  
D P Bazett-Jones
Keyword(s):  
Thin Section ◽  
Structural Information ◽  
Imaging Technique ◽  
Spectroscopic Imaging ◽  
Middle Layer ◽  
Major Portion ◽  
Electron Spectroscopic Imaging ◽  
Outer Plate ◽  
Different Levels ◽  
Biochemical Features

The structure of the kinetochore in thin section has been studied in the Indian muntjac by an electron spectroscopic imaging technique. This procedures allows the analysis of the distribution of phosphorus within the layers of the kinetochore. The results indicate that this element is a major component of both the inner and outer plates whereas it is largely absent in the middle plate and fibrous corona. The majority of the phosphorus is localized to a 30-nm fiber(s) that is woven through the layers of the kinetochore. The presence of phosphorus within this fiber, along with its morphological and biochemical features, indicates that it contains DNA. The fiber(s) occupies a major portion of the inner and outer plate where it forms a series of rows. It is rarely observed in the middle layer except where it passes between the inner and outer layers. The absence of structure in the middle plate suggests that it may represent a space rather than a plate that in turn may be related to the function of this region. The distribution of phosphorus within the kinetochore is neither altered by treatment with colcemid nor by the presence of microtubules at the kinetochore. Analysis of conventional micrographs of the kinetochore together with structural information obtained by electron spectroscopic imaging suggests that most microtubules insert and terminate between the rows of kinetochore fibers in the outer plate. However, some microtubules continue through the middle layer and terminate at the lower plate. The insertion of microtubules at different levels of the kinetochore may reflect the existence of functionally distinct microtubule classes. Electron spectroscopic imaging indicates that the microtubules associated with the kinetochore are phosphorylated.

Dynamic Simulation of Energy Systems: Comparison of a Physics-Based Against Time Constant Based Approach Applied to a Microturbine Test Rig

2015 ◽  
Author(s):  
Rory A. Roberts ◽  
I. Rossi ◽  
A. Traverso
Keyword(s):  
Time Constant ◽  
First Principles ◽  
Energy Production ◽  
Dynamic Performance ◽  
Distributed Applications ◽  
Target System ◽  
Small Scale ◽  
Test Rig ◽  
System Generator ◽  
Global Configuration

As distributed systems arise as the dominate approach in energy production, new and time-effective methods to study global configuration of small scale generation systems have to be discovered. This work proposes a comparison between two disparate approaches to microturbine modelling. The target system is a modified Turbec T100 microturbine coupled with an external vessel, which aims to simulate the dynamic global behavior of a fuel cell gas turbine hybrid system generator. The first model is based on first principles with ordinary differential equations to capture the dynamic performance of the turbine and it is developed with Matlab/Simulink environment. The second model is based on a simplified-physics time constant approach and it is developed with Excel/Visual Basic software, thus aiming at a viable tool for distributed applications, despite any lose in accuracy. Both models have been verified against the experimental data of the microturbine test rig, and compared in terms of computational efforts, modelling flexibility, prediction accuracy.

scholarly journals Uveitis [Only for Educational Purpose]

2021 ◽  
Author(s):  
Dattatreya Mukherjee
Keyword(s):  
Young Adults ◽  
Ciliary Body ◽  
Inflammatory Diseases ◽  
Middle Layer ◽  
General Term ◽  
Educational Purpose ◽  
Eye Tissues ◽  
Different Levels ◽  
White Part

Uveitis is a general term describing a group of inflammatory diseases that produces swelling anddestroys eye tissues. These diseases can slightly reduce vision or lead to severe vision loss.The uvea is the middle layer of the eye. It lies beneath the white part of the eye (the sclera). It ismade of the iris, ciliary body, and choroid. These structures control many eye functions,including adjusting to different levels of light or distances of objects. The term “uveitis” is used because the diseases often affect a part of the eye called the uvea.Nevertheless, uveitis is not limited to the uvea. These diseases also affect the lens, retina, opticnerve, and vitreous, producing reduced vision or blindness.It is characterized as seen in young adults with both eyes affected to it, mostly recurrent and cancause blindness.Uveitis may be caused by problems or diseases occurring in the eye or it can be part of aninflammatory disease affecting other parts of the body.It can happen at all ages and primarily affects people between 20-60 years old.Uveitis can last for a short (acute) or a long (chronic) time. The severest forms of uveitis reoccurmany times.

scholarly journals Assessing the Quality of Persian Translation of Orwell's Nineteen Eighty-four Based on House's Model: Overt-covert Translation Distinction

2015 ◽  
Vol 4 (3) ◽  
pp. 29-42
Author(s):  
Hossein Heidani TABRIZI ◽  
Azizeh CHALAK ◽  
Amir Hossein TAHERIOUN
Keyword(s):  
Target Language ◽  
Target System ◽  
Source Text ◽  
Translation Quality ◽  
Different Dimensions ◽  
System Errors ◽  
Persian Translation ◽  
Different Levels ◽  
Do So

This study aimed to assess the quality of Persian translation of Orwell's (1949) Nineteen Eighty-Four by Balooch (2004) based on House's (1997) model of translation quality assessment. To do so, about 10 percent of the source text was randomly selected. The profile of the source text register was produced and the genre was realized. The source text profile was compared to the translation text profile. The result of this comparison was dimensional mismatches and overt errors. The dimensional mismatches were categorized based on different dimensions of register. The overt errors which were based on denotative mismatches and target system errors were categorized into omissions, additions, substitutions, and breaches of the target language system. Then, the frequencies of occurrences of subcategories of overt errors along with their percentages were calculated. The dimensional mismatches and a large number of major overt errors including omissions and substitutions indicated that the translation was not in accordance with the House's view stating that literary works needed to be translated overtly. Mismatches on different levels of register showed that the cultural filter was applied in translation and the second-level functional equivalence required for overt translation was not reached. Therefore, the Persian translation of Nineteen Eighty-Four did not fulfill the criteria to be an overt translation.

scholarly journals Event-Triggered Intervention Framework for UAV-UGV Coordination Systems

Machines ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 371
Author(s):  
Wu Wang ◽  
Junyou Guo ◽  
Guoqing Tian ◽  
Yutao Chen ◽  
Jie Huang
Keyword(s):  
Predictive Control ◽  
Null Space ◽  
Integer Programming Problem ◽  
Ground Vehicles ◽  
Behavior Control ◽  
Coordination System ◽  
Coordination Systems ◽  
New Type ◽  
Coordination Framework ◽  
Event Triggered

Air-ground coordination systems are usually composed of unmanned aerial vehicles (UAV) and unmanned ground vehicles (UGV). In such a system, UAVs can utilize their much more perceptive information to plan the path for UGVs. However, the correctness and accuracy of the planned route are often not guaranteed, and the communication and computation burdens increase with more sophisticated algorithms. This paper proposes a new type of air-ground coordination framework to enable UAVs intervention into UGVs tasks. An event-triggered mechanism in the null space behavior control (NSBC) framework is proposed to decide if an intervention is necessary and the timing of the intervention. Then, the problem of whether to accept the intervention is formulated as an integer programming problem and is solved using model predictive control (MPC). Simulation results show that the UAV can intervene in UGVs accurately and on time, and the UGVs can effectively decide whether to accept the intervention to get rid of troubles, thereby improving the intelligence of the air-ground coordination system.

Issues on building software for hardware agents

1995 ◽  
Vol 10 (3) ◽  
pp. 301-304 ◽  
Author(s):  
Henry Hexmoor ◽  
David Kortenkamp
Keyword(s):  
Artificial Intelligence ◽  
Short Range ◽  
Middle Layer ◽  
Hierarchical Architecture ◽  
Small Community ◽  
Reactive Control ◽  
Layered Architecture ◽  
Community Of Researchers ◽  
Prior Experiences ◽  
Modelling System

James Albus states that “an architecture is a description of how a system is constructed from basic components and how those components fit together to form the whole” (Albus, 1995). A software architecture for physical agents reflects the organising principles that its designers have learned from many prior experiences in building such agents. Architectures that have been proposed for physical agents have differed greatly—from subsumption (Brooks, 1986) to Soar (Laird et al., 1987). However, a surprising consensus about architectures is beginning to emerge within the small community of researchers applying artificial intelligence to robotics. The consensus is that a multi- layer, hierarchical architecture is necessary. In particular, the community is moving towards a three-layered architecture. The lowest layer is a reactive control system inspired by subsumption (Brooks, 1986). The top layer is a traditional symbolic planning and modelling system. The middle layer is the key; it serves as a “differential” between the short-range reaction and long-range reasoning.

Development of an Internet of Civil Infrastructure Framework

2013 ◽  
Vol 684 ◽  
pp. 583-587 ◽  
Author(s):  
Der Cherng Liaw ◽  
Tzu Hsuan Lin
Keyword(s):  
Disaster Management ◽  
Information Exchange ◽  
Middle Layer ◽  
Data Representation ◽  
Sensor Data ◽  
Civil Infrastructure ◽  
Information Platform ◽  
Civil Infrastructures ◽  
Layered Architecture ◽  
Novel Concept

Nowadays, the civil infrastructures are subjected to disasters such as fires, floods, and earthquakes. Recently, the novel concept of Internet of Things (IoT) is known to be useful for managing crisis situations via providing a good disaster management and emergency response information. This paper addresses the civil infrastructure issue of health monitoring and disaster management by introducing IoT technology. A concept of internet of civil infrastructure (IoCI) framework is also proposed in this paper. The proposed framework is a three layered architecture. Among them, the top layer is a wireless sensor network (WSN) client which is deployed in civil infrastructure to perform specific tasks such as sensing, data processing, and acknowledgement. The middle layer is an information exchange web service (IEWS) through which all the information such as sensor data, structural health and location are exchanged, while the remaining layer is a mobile device based information platform for data representation, control, and event notification.

Dependence of Intergranular Fracture on Boundary Topography and Cohesion

1973 ◽  
Vol 31 ◽  
pp. 150-151
Author(s):  
J. E. Doherty ◽  
A. F. Giamei ◽  
B. H. Kear ◽  
C. W. Steinke
Keyword(s):  
Grain Boundary ◽  
Room Temperature ◽  
Nickel Base Superalloy ◽  
Boundary Shear ◽  
Room Temperature Ductility ◽  
Solid Solution Matrix ◽  
Nickel Base ◽  
Solution Matrix ◽  
Different Levels ◽  
Base Superalloy

Recently we have been investigating a class of nickel-base superalloys which possess substantial room temperature ductility. This improvement in ductility is directly related to improvements in grain boundary strength due to increased boundary cohesion through control of detrimental impurities and improved boundary shear strength by controlled grain boundary micros true tures.For these investigations an experimental nickel-base superalloy was doped with different levels of sulphur impurity. The micros tructure after a heat treatment of 1360°C for 2 hr, 1200°C for 16 hr consists of coherent precipitates of γ’ Ni3(Al,X) in a nickel solid solution matrix.

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