Integrating Logical and Physical Analysis Capabilities for Diagnostics

2004 ◽  
Author(s):  
Thomas Bartenstein ◽  
Bernd Koenemann ◽  
Lee Todd ◽  
Lisa Vallerie
Keyword(s):  
Data Model ◽  
Design Automation ◽  
Interaction Analysis ◽  
Physical Analysis ◽  
Design Intent ◽  
The Public ◽  
Analysis And Design ◽  
Industry Standard ◽  
Static Information ◽  
Analysis Environment

Abstract This paper describes and shows some anticipated application examples for an integrated logical/physical analysis environment that utilizes the public-domain OpenAccess database as a key infrastructure element. Using an electronic design automation (EDA) database makes it possible to enrich the failure analysis and debug environment with useful EDA-type utilities and applications. The article introduces the industry-standard OpenAccess data base and illustrates how this database can be used for better integration of a more comprehensive postsilicon debug, diagnostics, and characterization environment. It provides a summary of OpenAccess and highlights the possible role for OpenAccess/Unified Data Model as a complementary technology that captures the more static information about a product's design, design analysis, and design intent information. An initial integrated logical/physical analysis environment for logic diagnostics has been established for prototyping purposes. The article also presents examples of logical/physical analysis: signal interaction analysis and probing and circuit edit.

Design of Coal Mine Belt Conveyor Control System Based on OPC Technology

2014 ◽  
Vol 614 ◽  
pp. 191-194 ◽  
Author(s):  
Lei Yu ◽  
Feng Wang ◽  
Xu Long Zhang
Keyword(s):  
Control System ◽  
Coal Mine ◽  
Belt Conveyor ◽  
Analysis And Design ◽  
Industry Standard ◽  
Opc Client ◽  
Opc Technology ◽  
Mine Automation ◽  
Actual Operation ◽  
Automation Control

OPC has been widely applied to coal mine automation control system as an industry standard of communication between the field control substation and PC in the control system. In this paper, through the analysis and design for the transport system of coal mine belt conveyor, communication between the PC and S7-300 PLC is realized by using OPC technology. This paper gives the configuration scheme of OPC Server and develops the OPC Client program. The actual operation shows that the system is stable, reliable of communication and high of data real-time.

scholarly journals Developing and Implementing a Conceptual Composite Materials Design Database

1993 ◽  
Author(s):  
William J. Rasdorf ◽  
Lisa K. Spainhour
Keyword(s):  
Composite Materials ◽  
Computer Technology ◽  
Data Model ◽  
Data Representation ◽  
Future Research ◽  
Clear Understanding ◽  
Analysis And Design ◽  
Problems And Solutions ◽  
Software Interfaces ◽  
Design Software

Abstract Researchers and materials engineers require a greater understanding of the problems and solutions that emerge when integrating composite materials data with computer technology so that utilitarian composite materials databases can be developed to effectively and efficiently support analysis and design software. Composite materials constitute a representational challenge due to their composition and use. However, this paper suggests that a conceptual composite material data model and application software interfaces must be developed to support the dissemination and use of composite materials data. This paper primarily serves to analyze several of the problems facing developers of composite materials databases, evolving from the complexity of the materials themselves and from the current lack of testing and data representation standards. Without a clear understanding of the scope and nature of these problems, there is no possibility of designing concise yet comprehensive composites data models, yet we feel that such an understanding is presently lacking. In addition, an effort is made to present possible solutions to these difficulties being suggested and/or implemented both by the authors and by other researchers in the field. Such an effort provides a firm foundation upon which future research may be based.

scholarly journals Mining multiple sources of historical data: The example of a standardized dataset of medieval monasteries and convents in France

2019 ◽  
Vol 2 ◽  
pp. 1-7
Author(s):  
Adam Mertel ◽  
David Zbíral
Keyword(s):  
Data Mining ◽  
Spatial Patterns ◽  
Data Model ◽  
Computational Analysis ◽  
Historical Data ◽  
Model Data ◽  
Multiple Sources ◽  
The Public ◽  
Comprehensive Collection ◽  
Online Databases

<p><strong>Abstract.</strong> In this paper, we present a dataset of medieval monasteries and convents on the territory of today’s France and discuss the workflow of its integration. Spatial historical data are usually dispersed and stored in various forms &amp;ndash; encyclopedias and catalogues, websites, online databases, and printed maps. In order to cope with this heterogeneity and proceed to computational analysis, we have devised a method that includes the creation of a data model, data mining from sources, data transformation, geocoding, editing, and conflicts solving.</p><p> The resulting dataset is probably the most comprehensive collection of records on medieval monasteries within the borders of today’s France. It can be used for understanding the spatial patterns of medieval Christian monasticism and the implantation of the official Church infrastructure, as well as the relation between this official infrastructure and phenomena covered in other datasets. We open this dataset, as well as scripts for mining, to the public (https://github.com/adammertel/dissinet.monasteries) and provide a map tool to visualize, filter, and download the records (http://hde.geogr.muni.cz/monasteries).</p>

scholarly journals ANALYSIS AND DESIGN OF Q-STORE MARKETPLACE  CASE STUDY OF TEMBILAHAN

2020 ◽  
Vol 2 (1) ◽  
pp. 15-28
Author(s):  
Irwandi Rizki Putra ◽  
Muh. Rasyid Ridha
Keyword(s):  
Technological Development ◽  
Human Life ◽  
Unified Modeling Language ◽  
Business World ◽  
Unified Modeling ◽  
The Public ◽  
Analysis And Design ◽  
Online Marketplace ◽  
The Times

Along with the times, technology and information are developing rapidly in various sectors in terms of human life. In the business world, technological development is very helpful in many ways. The phenomenon that occurs at this time is the increasingly widespread competition in the business world, especially in the field of marketplace in getting consumers to the emergence of various online marketplace sites. So far, Tembilahan online shop business is only known through social media such as Facebook, Whatsapp and Instagram or verbally to the public. Therefore, researchers are interested in taking a title, namely Marketpleace Q-Store Market Analysis and planning. Tembilahan Case Study aims to become a media promotion, and can make it easier for people to find goods that they want. In designing this Marketplace, the analysis used is PIECES and UML (Unified Modeling Language) as modeling and using the Framework code igniter to facilitate researchers in building systems. With the implementation of the Marketplace Q-Store, it provides a platform for seller to market their products.

Assembly Representation Within a Product Data Framework

1993 ◽  
Author(s):  
Brian W. Henson ◽  
James E. Baxter ◽  
Neal P. Juster
Keyword(s):  
Data Model ◽  
Tolerance Analysis ◽  
Design For Assembly ◽  
Product Data ◽  
Analysis And Design ◽  
Functional Relationships ◽  
Data Framework ◽  
The University ◽  
Design And Manufacture ◽  
Assembly Analysis

Abstract Recent research at the University of Leeds demonstrated how a product data model can integrate the information required and used during product design and manufacture. The product data framework developed during this research structured assemblies as lists of parts and did not consider information about the relationships between components necessary to support applications such as tolerance analysis and design for assembly. This paper describes how we intend to combine research in assembly representation, functional modeling and data modeling to describe the geometric and functional relationships between components of assemblies. Focus is provided by considering both the design process and the information requirements of a design for assembly analysis.

Numerical Analysis of the Corrosion of Buried Pipes near High Voltage Transmission Lines

2021 ◽  
Vol 35 (11) ◽  
pp. 1376-1377
Author(s):  
Dario Arango Angarita ◽  
Daniel Vargas Medina ◽  
Javier Araque Quijano
Keyword(s):  
High Voltage ◽  
Transmission Lines ◽  
Environmental Parameters ◽  
Corrosion Process ◽  
Physical Analysis ◽  
Buried Pipe ◽  
High Voltage Transmission Line ◽  
Analysis And Design ◽  
Typical Situation ◽  
High Voltage Transmission

We present the multi-physical analysis of the induction-corrosion process undergone by a buried pipe subject to electromagnetic induction from a nearby High Voltage Transmission Line (HVTL). The scenario analyzed models a typical situation found in Colombia by using realistic characteristics of the pipe, the HVTL, and environmental parameters such as soil resistivity. The results presented provide a quantitative view of the corrosion process and constitute a useful tool for the analysis and design of the increasingly common situation of pipelines running near HVTLs.

Semantic Interoperability for Enhancing Sharing and Learning through E-Government Knowledge-Intensive Portal Services

2013 ◽  
pp. 252-262
Author(s):  
Ching-Chieh Kiu ◽  
Lai-Yung Yuen ◽  
Eric Tsui
Keyword(s):  
Semantic Web ◽  
Knowledge Sharing ◽  
Web Sites ◽  
Government Agencies ◽  
The Public ◽  
Government Services ◽  
Static Information ◽  
Knowledge Intensive ◽  
Different Levels

E-Government emerges from web sites that offer static information, documents and forms for employees and citizens, enquiries, and process automations to many types of stakeholders. Increasingly, different layers of government services are being consolidated into a knowledge portal, providing on time and online services. Such knowledge portals not only provide a platform for integrating applications and information from all government sources, but also provide platforms for knowledge sharing and learning to the public with the objective to improve the efficiency and the quality of E-Government processes and services. However, due to the heterogeneity of applications and information across different levels of government agencies, a significant amount of work is needed to re-configure such applications and services into a new platform. However, semantics are often deficient, which results in problems establishing effective knowledge sharing and learning in E-Government. This paper confers how knowledge intensive portals can be used for enhancing sharing and learning in E-Government. The authors discuss innovative information on how the Semantic Web and Web 2.0 technologies can be applied in providing interoperability to leverage knowledge sharing and learning activities.

Analysis of 16 QFN Device I/O Pads for Solderability Failures

2015 ◽  
Vol 2015 (1) ◽  
pp. 000675-000684
Author(s):  
Rama Hegde ◽  
Anne Anderson ◽  
Sam Subramanian ◽  
Andrew Mawer ◽  
Ed Hall ◽  
...  
Keyword(s):  
Cross Section ◽  
Printed Circuit Board ◽  
Depth Profiling ◽  
Lessons Learned ◽  
Circuit Board ◽  
Physical Analysis ◽  
Lead Frame ◽  
Cross Sectional ◽  
Root Cause ◽  
Industry Standard

In-process failures were experienced during printed circuit board (PCB) SMT assembly of a 16 Quad Flat No Leads (QFN) device. The failures appeared to be solderability related with QFN unit I/O pads not soldering robustly and sometimes leading to QFN detachment following board mounting. When assembly did take place on affected QFN units, the resulting solder joint was observed to be weak. This paper reports on very systematic analyses of the QFN device I/O pads using optical inspections, AES surface, AES depth profiling, SEM/EDX, SIMS, FIB and TEM cross-sectional measurements to determine the root cause of the failure and the failure mechanism. The detached QFN units, suspect and good unsoldered units, passing and failing units obtained from customers were examined. The industry standard surface mount solderability testing was performed on good and suspect parts, and all were observed to pass as evidenced by &gt;95% coverage of the I/O pads. Optical inspections and a wide variety of physical analysis of the pads on fresh parts showed no anomalies with only the expected Au over Pd over Ni found. AES analysis was performed including depth profiling to look for any issues in the NiPdAu over base Cu plating layers that could be contributing the solderability failures. The AES depth profiling indicated AuPd film on the Ni under layer for the I/O pads as expected. No unexpected elements or oxide layers were observed at any layer. Then, one failing and one passing units were compared by doing FIB cross-section, FIB planar section and TEM cross-section analysis. The cross-sectional analysis showed rough Ni surface for the failing units, while the Ni surface was relatively smooth for the passing unit. Further, finer Cu grains and Ni grains were observed on the passing units. Additionally, the lead frame fabrication process mapping showed rough Cu, Ni “texturing” and use of low electro chemical polishing (ECP) current on the bad units compared to that of the good units. All affected bad units were confirmed coming from a second source Cu supplier with the rough Cu. The weak and irregular NiSn IMC formation on the bad units caused IMC separation and possible spalling during board solder reflow primarily due to the rough base Cu and irregular grain sizes and resulting lower ECP lead frame plating current. A possible final factor was marginally low Pd thickness. In conclusion, the 16 QFN device solderability failure root cause summary and the lessons learned from a wide variety of analysis techniques will be discussed.

Uncoupled Method for Massively Parallelizable 3D Fluid-Structure Interaction Analysis and Design

2020 ◽  
Author(s):  
Trent White ◽  
Francis Phillips ◽  
William Scholten ◽  
Todd Henry ◽  
John Hrynuk ◽  
...  
Keyword(s):  
Interaction Analysis ◽  
Fluid Structure Interaction ◽  
Fluid Structure ◽  
Analysis And Design ◽  
Structure Interaction

Module and Vessel Interaction Analysis for Module Ocean Transportation

2013 ◽  
Author(s):  
Zhonghui Liu ◽  
Xin Hai ◽  
Andy Ji ◽  
Chun Liang ◽  
Yinguo Cheng
Keyword(s):  
Interaction Analysis ◽  
Direct Method ◽  
Design Criteria ◽  
Module Structure ◽  
Main Concern ◽  
Analysis And Design ◽  
Module Design ◽  
Main Challenge ◽  
Extreme Load ◽  
Ocean Transportation

Bechtel has been contracted for and is in the process of executing multiple onshore Liquefied Natural Gas (LNG) Engineering, Procurement, and Construction (EPC) projects utilizing the modular construction strategy. Modules and associated pieces of equipment have to be shipped to the job site from various manufacturing and fabrication facilities across open oceans. Naval Architects play a key role to assure safe and effective module ocean transportation. Primary naval architectural work consists of a routing study, module design criteria definition, ballasting and stability analysis, grillage and seafastening design, transportation vessel selection and support for module load out and load in. The main challenge is to make the modules, which are originally designed for onshore assembly, sound for ocean transportation. Therefore, module design criteria related to ocean transportation become crucial. Among these criteria, the wave induced inertia loads and vessel deflection have great impact on designed module structure integrity. In order to define inertia loads and deflection appropriately, the interface between vessel and module becomes a main concern. It raises the question of whether the transport vessel and module should be fully integrated. It also increases complexity of the hydrodynamic interaction, which has been demonstrated by widely divergent methods used to address the interface issue in offshore industry. More importantly, whether or not the interface is thoroughly taken into account is critical to successful module design and fully meeting the Marine Warranty requirements. In order to achieve safe and economic module design, a direct method of integrating vessel and module is considered preferable in analysis and design when the inertia effects and structure hydrodynamic response are significant. This paper will provide an overview of integrated vessel and module interaction analysis for the module ocean transportation and focus on the method and procedure of how Bechtel performs analyses: i) spectral motion analysis with a fully coupled constitutive model and ii) vessel and module interaction analysis utilizing an integrated 3D model with fully hydrodynamic loads transferred. In order to determine realistic extreme load case, the equivalent design wave selection will be addressed as well.

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