scholarly journals Queueing Aspects of Integrated Information and Computing Systems in Geosciences and Natural Sciences

10.5772/29337 ◽  
2011 ◽  
Author(s):  
Claus-Peter Ruckemann
Keyword(s):  
Natural Sciences ◽  
Computing Systems ◽  
Integrated Information

Integrated Information and Computing Systems for Advanced Cognition with Natural Sciences

2012 ◽  
pp. 1-26
Author(s):  
Claus-Peter Rückemann
Keyword(s):  
Information System ◽  
Information Systems ◽  
High Performance Computing ◽  
High Performance ◽  
Natural Sciences ◽  
Comprehensive Overview ◽  
Computing Systems ◽  
System Components ◽  
Performance Computing ◽  
Integrated Information

This chapter gives a comprehensive overview of the present status of Integrated Information and Computing Systems for complex use cases and system architectures in order to exploit new resources for opening up new cognitive insights for natural sciences applications. It shows up with the challenges creating complex integrated information and computing components and covers implementation, frameworks, and security issues with these processes and how the overall complexity can be reduced using collaboration frameworks with Distributed and High Performance Computing resources in natural sciences disciplines for building integrated public / commercial information system components within the e-Society. The focus is on using a collaboration framework for integrating computing resources with information system components, interfaces for data and application interchange, based on current developments and embedding development, operational, up to strategical level. Referenced are the case studies within the long-term GEXI project, GISIG framework and Active Source components used in heterogeneous environments. The Collaboration house framework has been created over the last years and is being used for a number of scenarios in research environments, using High End Computing resources. The application of these methods for commercial service structures affords the consideration of various legal, security, and trust aspects. This has already been used by international partners from geosciences, natural sciences, industry, economy, and education though this concept has been found a solution for the component integration and cooperation for information systems, e.g., in natural sciences and archaeology. Nevertheless the different aspects and situations need to be collected in order to provide and disseminate them for wider use. Examples are Envelope Interfaces for geoscientific processing, from advanced scientific computing up to High Performance Computing and Information Systems as well as enabling object security and verification for Integrated Information and Computing Systems.

Artefact in 20Å-Resolution Electron Images of Negatively Stained Twodimensional Membrane Protein Crystals

1982 ◽  
Vol 40 ◽  
pp. 92-93
Author(s):  
Douglas L. Dorset ◽  
Barbara Moss
Keyword(s):  
Electron Scattering ◽  
Cross Correlation ◽  
Transmission Function ◽  
Group Symmetry ◽  
Asymmetric Structure ◽  
Object Model ◽  
Phase Object ◽  
Computing Systems ◽  
Resolution Electron ◽  
Plane Group

A number of computing systems devoted to the averaging of electron images of two-dimensional macromolecular crystalline arrays have facilitated the visualization of negatively-stained biological structures. Either by simulation of optical filtering techniques or, in more refined treatments, by cross-correlation averaging, an idealized representation of the repeating asymmetric structure unit is constructed, eliminating image distortions due to radiation damage, stain irregularities and, in the latter approach, imperfections and distortions in the unit cell repeat. In these analyses it is generally assumed that the electron scattering from the thin negativelystained object is well-approximated by a phase object model. Even when absorption effects are considered (i.e. “amplitude contrast“), the expansion of the transmission function, q(x,y)=exp (iσɸ (x,y)), does not exceed the first (kinematical) term. Furthermore, in reconstruction of electron images, kinematical phases are applied to diffraction amplitudes and obey the constraints of the plane group symmetry.

Pengembangan pembelajaran PAI model student facilitator and explaining pada kelas VII SMP Negeri 1 Puri Mojokerto

2017 ◽  
Vol 1 (1) ◽  
pp. 91
Author(s):  
Hariris Nur Cahyo
Keyword(s):  
Everyday Life ◽  
Secondary Students ◽  
Natural Sciences ◽  
Trial Data ◽  
Islamic Education ◽  
Development Research ◽  
Test Results ◽  
Junior Secondary ◽  
Expert Validation

Learning PAI (Islamic Education) seeks to increase the interest of students to develop the knowledge, skills and ability to think about nature and its contents are full of secrets endless. Based Permendiknas No. 23 of 2006, Standard Competency Education Unit (SKL-SP) SMP / MTS include: students can find and apply information from the environment and other sources logically, critically and creatively, and students can demonstrate the ability analyze and solve problems in everyday life. The purpose of development research are: 1) to describe the model of PAI that has been applied in SMP Negeri 1 Puri Mojokerto 2) Describe the product feasibility PAI learning for junior secondary students and secondary review of aspects of the model Student Facilitator and Explaining 3) Produce Learning PAI student Facilitator and explaining the model that corresponds to the culture and character of students in SMP Negeri 1 Puri Mojokerto Products PAI learning facilitator and explaining the model student has been accomplished based analysis of trial data. Based on the measures that have been implemented can be concluded as follows. 1). Products are revised based on theoretically and empirically test results are: Revised by students by questionnaire: Change to increase the attractiveness of the model 2) Products that are developed interesting for classical learning in the classroom and independently. 3) The product of these products can ease the burden of teachers in teaching. 4) The results of expert validation and testing, PAI Learning Facilitator and explaining the model student is fit for use for subjects of Natural Sciences (PAI). 5) Products that are developed can increase students' motivation, and motivation is one of the conditions of implementation of productive models.

Recovery boiler sootblowers: History and technological advances

TAPPI Journal ◽  
2015 ◽  
Vol 14 (1) ◽  
pp. 51-60
Author(s):  
HONGHI TRAN ◽  
DANNY TANDRA
Keyword(s):  
Cfd Modeling ◽  
Computing Systems ◽  
The Past ◽  
Technological Advances ◽  
Recovery Boilers ◽  
Computational Fluid Dynamics Cfd ◽  
Recovery Boiler ◽  
Steam Parameters ◽  
Insight Into ◽  
Deposit Removal

Sootblowing technology used in recovery boilers originated from that used in coal-fired boilers. It started with manual cleaning with hand lancing and hand blowing, and evolved slowly into online sootblowing using retractable sootblowers. Since 1991, intensive research and development has focused on sootblowing jet fundamentals and deposit removal in recovery boilers. The results have provided much insight into sootblower jet hydrodynamics, how a sootblower jet interacts with tubes and deposits, and factors influencing its deposit removal efficiency, and have led to two important innovations: fully-expanded sootblower nozzles that are used in virtually all recovery boilers today, and the low pressure sootblowing technology that has been implemented in several new recovery boilers. The availability of powerful computing systems, superfast microprocessors and data acquisition systems, and versatile computational fluid dynamics (CFD) modeling capability in the past two decades has also contributed greatly to the advancement of sootblowing technology. High quality infrared inspection cameras have enabled mills to inspect the deposit buildup conditions in the boiler during operation, and helped identify problems with sootblower lance swinging and superheater platens and boiler bank tube vibrations. As the recovery boiler firing capacity and steam parameters have increased markedly in recent years, sootblowers have become larger and longer, and this can present a challenge in terms of both sootblower design and operation.

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