The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The Internet of Things (IoT) is announced to swamp the world. In order to understand the emergent behaviour of connected things, effective support for the modelling of connection and failure probabilities, execution and waiting times, as well as resource consumptions of various kinds is needed. At the heart of IoT are flexible and adaptive communication and interaction patterns between things, meant...
Additive manufacturing (AM) is the process of joining materials to make objects from Computer Aided Design (CAD) model data, usually layer upon layer, as opposed to using subtractive manufacturing methods. The use of rapid prototyping technologies has increased significantly in recent years. This paper represents an attempt to answer the questions of when 3D printing can be used efficiently and of...
Privacy and Security becomes an indispensable matter of attention in the Vehicular Ad-Hoc Network, which is vulnerable to many security threats these days. Among all the difficulties of the VANET, security got less consideration in this way. VANET parcels contains life basic data consequently it is important to ensure that these bundles are not embedded or altered by the aggressor; in like manner...
Energy consumption is emerging as a new crucial issue of the Cloud Computing environments such as data centers. The problem of power consumption is more challenging especially in the context of scientific workflows deployment in the Cloud as they trigger intensive computational tasks and data manipulation steps which begets excessive data movement operations over communication networks. For instance,...
Grid Computing is a new infrastructure of 21st century that provides access to computational and data intensive resources to its users. The core purpose behind the evolution of Grid computing is to utilize the idle capacity of the resources without acquiring the resources physically. The grid users are resource providers and resource consumers. The resource providers are looking for optimum utilization...
The relationship in Social networking between nodes may be continuous or discontinuous after finite interval of time. To maintain a relationship among nodes may be very complex with increasing number of nodes. The authors have made an extensive study to establish different types of relation in Social Networking with respect to time, length (number of edges) and cost. The authors will try to explain...
This work aims at systematically characterizing urban mobility. There are several possible approaches to the problem but this work focus on reducing commuting times and emissions using the current infrastructures and without increasing the cost to the end user and doing so in an effective and sustainable way. A set of pairs of destinations and origins was chosen to represent usual commutes and cover...
In this paper, an intuitionistic fuzzy rule decision support system based on the fuzzy measure and the fuzzy integral is proposed to handle the various attributes associated with supplier evaluation problem in the supply chain management In this proposed decision support system, because of the importance of continuous evaluation of a particular supplier, the antecedent variable and the consequence...
It has become the norm in many projects to view the traditional trade-offs as classic problems to ‘solve’. This approach often suppresses the creative exploitation of paradox within the triple constraint. The principles and practices of Polarity ManagementTM introduce a refreshed perspective by supporting the ‘either/or’ problem solving approach with the ‘both/and’ rationale, which allows the triple...
Projects over the years failed to be completed within the specified triple constraint, hence lack of development in skills and infrastructure. The objective of the research is to assess the triple constraint and determine sources of failures in order to increase the success rate of construction projects in South Africa and to give priority on the triple constraint. Both the contextual and fieldwork...
Projects are generally undertaken because they are part of the plans to meet business needs and charter organizations to new levels of performance. Projects are however constrained by conflicting demands and competing priorities within the project environment. Neglecting to manage these constraints accurately and effectively may be sufficient to condemn a project even if all other project management...
Take the problem of transportation path optimization as the research object in wartime, aim to the characteristic of multi-modal transportation, using the stochastic dependent-chance programming theory, the maximal credibility model of appointed transportation time and cost is built, when the times of passages and the material's transfer times are all random variables. Design the genetic algorithm...
A proper planning is one of the main issues the success of a software project lies on. However, a perfect planning is not useful without monitoring sufficiently, which involves not only controlling that the activities and expected costs are being met properly, but also having the ability to anticipate the impact that deviations from the plan will have on the future development of the project. Monitoring...
Based on the theory of fuzzy multi-object group decision and fuzzy technique for order preference by similarity to ideal solution (FTOPSIS), fuzzy optimization model of time-cost-quality for Dayawan water diversion engineering project is formed. Then, applying fuzzy multi-model network planning techniques and self-adaptive genetic algorithms, the most satisfied decision alternatives can be obtained.
This paper examines BIM research and application on construction industry in China and provides a view of KPIs. This study establishes a 5-KPIs (quality, cost, time, safety, and energy) model of the BIM impact on construction industry. Then through investigation of 93 valid questionnaires, two kinds of statistical data analysis approaches are conducted and the different results are compared and interpreted...
WenBo routine of South-to-North Water Diversion Project is a complex, large-scale water conveyance project, its allocation of resources and management of complex relationship. Due to the massive change of information in the engineering area companies, they are forced to corporate with each other and built virtual engineering enterprises. This paper has summarized the experiences in the project management,...
With the development of market competitions, the cycle of products is shortening, customers have higher expectation for products and service, especially clothing which is fashionable and seasonal. Evaluation for Quick Response Ability (QRA) of clothing enterprise is significant. First, the basic theories of QR are summarized, the present problem and status is analyzed. Then the paper sets up the evaluation...
Time, cost, quality, and safety, with mutual influence, are the four major control items for project management. The best solution for a project is to achieve high quality with low cost in a proper time limit and without safe accident. Based on the comprehensive limitations above, an integrated optimization model is build up, which can balance the construction time-cost-quality-safety systematically...
An approach which combines PERT and CPM in one model to solve project scheduling problems, is introduced. Due to the stochastic nature of activity time and cost for PERT and CPM networks, robust design for project scheduling via statistical method is introduced in the presented approach. The statistical method, such as response surface methodology (RSM), is used to develop a rationale of the time-cost...
Distribution center is a bridge connecting providers and clients. It plays an important role in logistics system. This paper put forward the least cost and the shortest time allocation models of materials distribution center. The integrated measure allocation models of materials distribution center considering the time and the cost together is built and a solution flow to the least cost and the shortest...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.