• Journal of Construction Engineering and Project Management
• /
• v.2 no.1
• /
• pp.27-34
• /
• 2012

Recent requirements in component management of building systems have focused on the requirement for improving methods and metric tools to support component condition assessment and appropriate decisions for infrastructure owned facilities. Although engineers and researchers have focused on developing methodologies for component assessment in recent years but there is not enough attention dedicate to facilities and components that have been constructed. This paper is a literature study of scientific papers within the topic of component condition index system (CCIS) in the period 1976 to 2009. Infrastructure component condition index had existed for some 40 years. The purpose of this paper is to provide an overview of CCIS to identify the suitable method for component condition assessment during its service life. This paper finds that the focus of CCIS, surveyed in several aspects during the 40 years that have been investigated, from technology to measurement and from assessment function to component maintenance as an integrated part of the infrastructure component management. This study offers help to researchers in understanding the selection of an appropriate method for component condition assessment in building and non-building systems.

• Computers and Concrete
• /
• v.1 no.3
• /
• pp.303-324
• /
• 2004

The Component-Based Software Development (CBSD) has established itself as a sound paradigm in the software engineering discipline and has gained wide spread acceptance in the industry. The CBSD relies on the availability of standard software components for encapsulation of specific functionality. This paper presents the framework for the development of a software component for the design of general member cross-sections. The proposed component can be used in component-based structural engineering software or as a stand-alone program developed around the component. This paper describes the use-case scenarios for the component, its design patterns, object models, class hierarchy, the integrated and unified handling of cross-section behavior and implementation issue. It is expected that a component developed using the proposed patterns and model can be used in analysis, design and detailing packages to handle reinforced concrete, partially prestressed concrete, steel-concrete composite and steel sections. The component can provide the entire response parameters of the cross section including determination of geometric properties, elastic stresses, flexural capacity, moment-curvature, and ductility ratios. The component can also be used as the main computational engine for stand-alone section design software. The component can be further extended to handle the retrofitting and strengthening of cross-sections, shear and torsional response, determination of fire-damage parameters, etc.

• Journal of Internet Computing and Services
• /
• v.6 no.2
• /
• pp.13-24
• /
• 2005

Software development by component integration is the mainstream for time-to-market and is the solution for overcoming the short lifecycle of software. Therefore, the effective techniques for component integration have been working. However, the systematic and practical technique has not been proposed. One of main issues for component integration is how to specify integration and the component architecture for operating the specification, in this paper, we propose a workflow variability design technique for component integration, This technique focuses on designing to a connection contract based on the component architecture. The connection contract is designed to use the provided interface of component and the architecture can assemble and customize components by the connection contract dynamically.

• The KIPS Transactions:PartD
• /
• v.11D no.3
• /
• pp.617-624
• /
• 2004

Recent developments in component technology enable the construction of complex software systems by assembling together off-the-shelf components However, It is still difficult to develop efficient, reliable, and dynamically configurable component-based systems. Unspecified dependencies and behavior on components often has cause the source of the trouble. Therefore, component-based software systems must maintain explicit presentations of inter-component dependence and component requirements. In this paper, I describe the design on repository of component service to deployment, status reporting, and control in component service. Through the existing researches to customize component technology, I present the algorithm that supports dynamic dependency interface in order to reuse context of application.

• Earthquakes and Structures
• /
• v.13 no.4
• /
• pp.409-419
• /
• 2017

In order to analyze the vibration control effect of viscous damper in the concrete archaized buildings with lintel-column joints under seismic action, 3 specimens were tested under dynamic excitation. Two specimens with viscous damper were defined as the controlled component and one specimen without viscous damper was specified as the non-controlled component. The loading process and failure patterns were obtained from the test results. The failure characteristics, skeleton curves and mechanical behavior such as the load-displacement hysteretic loops, load carrying capacity, degradation of strength and rigidity, ductility and energy dissipation of the joints were analyzed. The results indicate that the load-bearing capacity of the controlled component is significantly higher than that of the non-controlled component. The former component has an average increase of 27.4% in yield load and 22.4% in ultimate load, respectively. Meanwhile, the performance of displacement ductility and the ability of energy dissipation for the controlled component are superior to those of the non-controlled component as well. Compared with non-controlled component, equivalent viscous damping coefficients are improved by 27.3%-30.8%, the average increase is 29.0% at ultimate load for controlled component. All these results reflect that the seismic performance of the controlled component is significantly better than that of the non-controlled component. These researches are helpful for practical application of viscous damper in the concrete archaizing buildings with lintel-column joints.

• Applied Biological Chemistry
• /
• v.7
• /
• pp.85-91
• /
• 1966

Paper electrophoretic separation of soybean protein using phosphate buffer(pH. 7.6, I. 0.18) was carried out and revealed five components. The ratio of each component extracted with the phosphate buffer was estimated as follows. Component %(aver.) Component I 14.47 Component II 7.22 Component III 4.43 Component IV 71.7 Component V 2.18 Also, each component of phosphate buffer extract was identified as: Component identified Component I identified phaseolin Component II identified glutelin Component III identified $albumin\;{\alpha}$ Component IV identified glycinin Component V identified $albumin\;{\alpha}$ The quantitative determination of the components was performed with twenty five varieties of Korean soybean and turned out to indicate marked difference between the varities in the ratio of the components.

• Journal of Internet Computing and Services
• /
• v.4 no.3
• /
• pp.57-67
• /
• 2003

Software product lines are to attain the rapid development of qualify applications by concretizing the general components populated in software assets and assembling them according to the predefined architectures. For supporting the construction of the software product lines, this paper proposes a component code generation techniques based on GenVoca architecture and XML/XSLT technologies, In addition, CompGenX(Component Generator using XML), a component code generation system, is proposed on the basis of this techniques. By providing reconfigurability of component at the time of code generation, CompGenX allows the reusers to create the component source code that is appropriate to their purpose, In this system, the process of the component development is divided into two tasks which are the component family construction task and the component reuse task, For the component family construction, CompGenX provides the feature modeling tool for domain analysis and the domain architecture definition tool. Also, it provides the tool for building the component configuration know1edge specification and the code templates, For the component reuse task, it offers the component family search tool. the component customizing tool and the component code generator. Component code generation techniques and system in this paper should be applicable as basic technology to build the component-based software product lines.

• Journal of Sericultural and Entomological Science
• /
• v.6
• /
• pp.34-38
• /
• 1966

This experiment was to find out the exact amount of iron component in filature water affecting or the coloring and iron component content in the raw silk after the quantitative analysis of iron component in the filature water, cocoon bave and raw silk. 1. In Korea the extent of iron component in filature water is 0.01-0.77 PPM, and the average amount is 0.23 PPM. 2. The sample water from wells contains more than twice as much iron component as the river water. 3. The iron component content in the cocoon bave (Fe$_2$O$_3$ 0.0096%) and that in the raw silk (Fe$_2$O$_3$ 0.0084%) are similar. But it should be noticed that while the ash content in cocoon bave is twice as much as raw silk, the same amount of ash in raw silk has twice as much iron component as the cocoon bave. 4. The amount of iron component in filature water has great effect on the resolution and absorption of iron component contained in the raw silk during cooking and reeling. That is, when the amount of iron component is small, the rate of iron component resolution from the cocoon bave increases and finally the raw silk comes to contain much less iron component than the cocoon bave, but when the iron component amount is over 0.40 PPM, the raw silk happens to contain more iron component than the cocoon bave. 5. The iron component in filature water makes the raw silk grayish and the more the iron component, the grayer the raw silk. 6. While even very small amount of iron component can affect the depth of raw silk, relatively large amount of Mn component does not have so much influence on the coloring.

• Journal of KIISE:Software and Applications
• /
• v.29 no.7
• /
• pp.476-486
• /
• 2002

CBD(Component Based Development) has become the best strategical method for the business application. Because CBD is a new development paradigm which makes it possible to assemble the software components for application, it copes with the rapid challenge of business process and meets the increasing requirements for productivity. Since the business process is rapidly changing, CBD technology is the promising way to solve the productivity. Especially, the repository is the most important part for the development, distribution and reuse of components. In component repository, we can store and manage the related work-products produced at each step of component development as well as component itself. In this paper, we suggested a practical approach for repository construction to support and realize the CBD process and developed the CRMS(Component Repository Management System) as implementation product of the proposed techniques. CRMS can manage a variety of component products based on component architecture, and help software developers to search a candidate component for their project and to understand a variety of information for the component. In the paper, a practical approach for component repository was suggested, and a supporting environment was constructed to make CBD to be working efficiently. We expect this work wall be valuable research for component repository and the entire supporting Component Based Development Process.

• Journal of Korean Society of Transportation
• /
• v.21 no.2
• /
• pp.119-130
• /
• 2003

SP data have been widely used in assessing new transport policies and transport related plans. However, one of criticisms of using SP is that respondents may show different reaction between hypothetical experiments and real life. In order to overcome the problem, combination of SP and RP data has been suggested and the combined methods have been being developed. The purpose of this paper is to suggest a new SP and RP combined method using error component method and to verify the method. The error component method decomposes IID extreme value error into non-IID error component(s) and an IID error component. The method estimates both of component parameters and utility parameters in order to obtain relative variance of SP data and RP data. The artificial SP and RP data was created by using simulation and used for the analysis, and the estimation results of the error component method were compared with those of existing SP and RP combined methods. The results show that regardless of data size, the parameters of the error component method models are similar to those assumed parameters much more than those of the existing SP and RP combined models, indicating usefulness of the error component method. Also the values of time for error component method are more similar to those assumed values than those of the existing combined models. Therefore, we can conclude that the error component method is useful in combining SP and RP data and more efficient than the existing methods.