Integrative Technology Research Articles

集成成像三维显示系统显示性能的研究进展

Integral imaging technology is a three-dimensional display technology of picking up and displaying stereo images by using a lens array.For its wider applications,this paper overviews the characteristics of integral imaging three dimensional display systems.As the performance of integral imaging three-dimensional display system is limited by the resolution,depth and the viewing angle,the research progresses of enhancing the resolution,depth and the viewing angle in recent years are comprehensively discussed and the relative merits of various methods are compared and analyzed.At the same time,it gives the research present situation of the integral imaging three-dimensional display technology and describes the work by the author′s research group in this field.

气象预警信息显示终端设计

Based on the national public administrations' demand for meteorological early warning,a specialized meteorological early warning information display terminal is designed.With inte-grating SMS technology,GPRS wireless communication technology,speech synthesis technology,LED display technology,embedded Linux technology and Qt software designing technology,the system realizes receiving,displaying and broadcasting remote meteorological warning messages.The task requirement,hardware design,soft ideas and the LCD interface driver based on Linux are described in details.Experimental results show that the system displays images distinctly,communicates with the control center stably and meets the design requirement entirely.

GEOMETRIC COMPLEXITY ANALYSIS IN AN INTEGRATIVE TECHNOLOGY EVALUATION MODEL (ITEM) FOR SELECTIVE LASER MELTING (SLM)#

Selective laser melting (SLM) is becoming an economically viable choice for manufacturing complex serial parts. This paper focuses on a geometric complexity analysis as part of the integrative technology evaluation model (ITEM) presented here. In contrast to conventional evaluation methodologies, the ITEM considers interactions between product and process innovations generated by SLM. The evaluation of manufacturing processes that compete with SLM is the main goal of ITEM. The paper includes a complexity analysis of a test part from Festo AG. The paper closes with a discussion of how the expanded design freedom of SLM can be used to improve company operations, and how the complexity analysis presented here can be seen as a starting point for feature-based complexity analysis.

Impact of web usability on user acceptance using tourism website

Development of network technology from Web 1.0 to Web 2.0 realizes revolutionary transformation in values of websites existing. How to provide proper human computer reaction service platform through websites is the topic that many technology developers and users concerns with at current times. This study conducts an analysis on factors related to web usability from the perspectivie of tourism operators and web users by adopting integrative technology acceptance module as a theoretical framework, and discusses important factors of web usability derived from behavioral intention of web users by adopting Scavenger Hunt test and questionnaire survey, and then validiates impact on user acceptance using tourism websites and finally summarizes and analysizes the service strategy and service framework suitable to the development of tourism website. Research results show that web usability factors highlighted by users and reasons of enhancing willingness of user using websites could solve problems existing in websites, increase website flow and trust of users, and further increase overall operation income of tourism websites.

A Mathematics Teacher’s Practice in a Technological Environment: A Case Study Analysis Using Two Complementary Theories

Integrating technology in school mathematics has become more and more common. The teacher is a key person in integrating technology into everyday practice. To understand teacher practice in a technological environment, this study proposes using two theoretical perspectives: the theory of technological pedagogical content knowledge to analyze teachers’ knowledge, and instrumental orchestration to analyze teachers’ actions. Applying this dual perspective to one teacher’s practice can shed light on the complexities faced by a teacher who integrates technology in her practice.

Improving Internal Supply Chain Collaboration by Increasing Information-Processing Capacity

This study examines the role of enterprise information systems in fostering collaboration between the Purchasing, Production, and Outbound Logistics functions of manufacturing facilities. These forms of integrative information technology are considered key facilitators of supply chain management. The research model embeds these systems within a broader model of facilitators of interfunctional integration. The model is tested by path analysis, using a survey sample of 120 manufacturing facilities located in the United States. The results suggest that integrative information technology has a significant effect on collaboration, and that the level of demand uncertainty moderates the effect on collaboration.

Inquiry-Based Lessons That Integrate Technology: Their Development and Evaluation in Elementary Mathematics Teacher Education

Technology-enhanced mathematics tasks were introduced to elementary pre-service candidates (n = 84) and in-service teachers (n = 38), who then, either in partners or small groups, created and taught inquiry-based lessons incorporating technology, with individual reflections. The lessons were coded using the following criteria: (a) The students themselves used the technology for inquiry learning, (b) technology was integral to the learning task, (c) the lesson focused on mathematics concepts—not the technology, and (d) the task would have been more difficult to accomplish without the technology. The lesson analysis revealed that, after instruction on inquiry learning and technology integration, each group achieved a high level of proficiency using these criteria. Further, the analysis assisted the instructors in identifying issues and concerns regarding implementation of technology in elementary mathematics instruction.

Stability analysis for linear delayed systems via an optimally dividing delay interval approach

This paper addresses the problem of stability for linear systems with time-varying delay. A novel augmented Lyapunov–Krasovskii functional is constructed by using the idea of optimally dividing the delay interval [0,τ(t)] into some variable sub-intervals and line integral technology. Using the novel augmented functional, the new delay-dependent stability criteria are proposed for linear systems with time-varying delay. The gain is that this stability criterion can lead to much less conservative stability results compared to other methods for linear systems with delay. Two numerical examples are provided to verify the effectiveness of the proposed criteria.

P‐9: Extended Fractional View Integral Imaging Using Slanted Fly's Eye Lens

AbstractA new 3D display system based on integral imaging technology was developed by combining two methods. One is the extended fractional view method in which various LCDs and fly's eye lenses can be used together, and the other is the slanted lens array method that can reduce the moiré pattern.

Technology roadmapping for the production in high-wage countries

Manufacturing companies from high-wage countries must focus on future markets and products to remain competitive and to ensure long-term success. In a dynamic, global environment it is necessary to further improve the underlying production technologies and methodologies to achieve sustainable competitive advantages. Thus, a technology roadmap for advanced production technologies and approaches has been developed. The roadmap provides an overview of relevant technologies and their technological readiness. It points out challenges which manufacturing companies in high-wage countries have to face. Moreover, the applied roadmapping process is used to align the research activities within the Cluster of Excellence “Integrative Production Technology for High-Wage Countries” to the relevant topics concerning the cluster’s four main research areas, namely the individualized, virtual, hybrid and self-optimizing production. This paper describes the roadmapping process as well as its main results. Regarding each of the four research fields, a technology radar including exemplary technologies evaluated e.g., by their state of development is presented. Furthermore, relevant challenges, future trends and scientific tasks are discussed as main drivers influencing the cluster’s research activities.

Design methodology for modular tools

Serving individual customer needs at reasonable prices can be a profitable target market in high-wage countries. The dilemma between scale and scope-oriented production is one major research topic within the Cluster of Excellence “Integrative Production Technology for High-Wage Countries” at the RWTH Aachen University. One main objective of this project is to bridge the existing gap between individual manufacturing and mass production. Modularization is a widely accepted approach in tool-based manufacturing processes. In this paper, we propose a flexible design methodology for modular tools and dies. The methodology will assist the design engineer in setting up a series of modularized tools in a conceptually closed manner. The described methodology covers modularization in a broad sense, i.e. it includes hardware modularization as well as modularization of the construction process. The methodology consists of three phases: initiation, analysis and design phase.

Integrate Technology with Student Success

As teaching methods and teaching tools evolve, so too should the way we use technology in the classroom.

Reflections on a Technology–Rich Mathematics Classroom

Integrating technology into the mathematics classroom means more than just new teaching tools—it is an opportunity to redefine what it means to teach and learn mathematics. Yet deciding when a particular form of technology may be appropriate for a specific mathematics topic can be difficult. Such decisions center on what is commonly being referred to as TPACK (Technological Pedagogical and Content Knowledge), the intersection of technology, pedagogy, and content (Niess 2005). Making decisions about technology use influences not only students' conceptual and procedural understandings of mathematics content but also the ways in which students think about and identify with the subject.

Information flows supporting hinterland transportation by rail: Applications in Sweden

This article analyses how information and communication technology (ICT) is used to support the hinterland transport of maritime containers. It focuses on the way information is conveyed between actors using an ICT facility structure, and how integrative information is used by different partners’ information systems to make different transport operations more efficient and to offer improved service. The analysis includes the identification of the actor network and the management components in line with supply chain management perspectives. To support this analysis, a conceptual model showing the relationship between integrative information and integrative technology was constructed and related to business processes and an ICT maturity model found in the literature. Interviews were conducted with actors involved in Swedish hinterland rail transport. The information flows were mapped and the analysis shows that while the current level of integration and ICT maturity is fairly low, several actors are currently modernising their systems. Their main motivation is to reduce the administrative task load, and at the same time achieve better supply chain integration. The actors are focused on their own tasks and do not see the advantages of advanced integration of the information flows. The risk is identified that the IT level is increasing faster than business integration processes between the companies, which might lead to inefficiencies.

The role of integrative technology in competitiveness

PurposeThe purpose of this paper is to investigate the relationship between integrative technologies and the corporation's ability to remain or gain a competitive advantage in today's fast‐paced global economy.Design/methodology/approachThe authors' professional experience, extensive literature review, and personal communications on the subject provided the foundation for this research.FindingsThe global business environment requires corporations to use a variety of information and communications technologies in order to coordinate and control all activities in its global operations. In order to be competitive, firms are implementing new technologies such as enterprise resource planning (ERP), ERP II, and radio frequency identification to reduce the cost of doing business by improving operational efficiencies, establish better relationship with their business partners, as well as effectiveness by quickly responding to changes in the marketplace. Challenges and benefits of implementing these technologies by both manufacturing and service organizations are explored and examined in this paper.Practical implicationsLow‐cost and differentiation strategies require corporations to integrate information and communications technologies to streamline processes both within the firm and between business associates. A considerable amount of time and capital is required for acquisition and implementation of the new technology but the return on the investment is significant in the long run. Top management participation, change in management, and employee training are critical success factors in successful utilization of technology.Originality/valueThe paper provides useful information with regards to the importance of technology in sustaining or gaining a competitive advantage in the marketplace.

Experimental Investigation of the Compaction and Tensile Strength of Co-cured Skin-to-Stiffener Structures

The integral technology of co-curing has been attracted increasing attention due to its resulting in fewer parts and reduction the assembly times and cost of aircraft structures. In this study, an experimental co-curing technique was applied to fabricate T-stiffened panels in the autoclave, with an emphasis to investigate experimentally on the influence of tool assembly schemes on the manufacture and performance evaluation of co-cured panels. The pressure transferring characteristic of the tools was measured. The thickness analysis and the microscopy observation were examined to discuss the influence of various tool assembly schemes on the compaction of T-stiffened panels. Moreover, a special pull-off test was performed to evaluate the effect of the manufacturing quality on the mechanical performance. The experimental results indicated that during co-curing period, an interesting observation was found that the manufacturing quality of T-stiffened panels was significantly influenced by a position limit for the tools. In case of absence of a position limit for the tools, a micro-cut showed that the fiber waviness obviously appeared in skins and stiffener corners of T-stiffened panels, which was extremely attributed to the pressure distribution in stiffener corners. Applying a position limit for the tools can effectively eliminate the fiber waviness in stiffener corners and a well consolidated T-stiffened panel with uniform thickness was obtained, almost free of fiber waviness and resin-rich defect. Under tension condition, the fiber waviness in stiffener corners remarkably caused a decrease of the initial damage load, but showed no significant influence on the peak load.

Influence of core fillers on resin flow and fiber compaction of cocured skin‐to‐stiffener structures

AbstractThe integral molding technology is the development of composite structures. In this study, an experimental integral technology of cocuring was applied to fabricate T‐stiffened skins. A study was undertaken to determine the effect of fillers in stiffener core on resin flow and fiber compaction of T‐stiffened skins. A new application of transferring pressure film was carried out to measure the pressure distribution in T‐stiffeners. The characteristics of resin flow were investigated by the bleeding quantity and the stiffener thickness in prebleeding process. The experimental results indicated that nonuniform pressure obviously distributed in T‐stiffeners, especially the lowest pressure exhibited in stiffener corner. Resin‐rich defect and highest thickness were frequently obtained in stiffener corner. However, rolling unidirectional prepregs as fillers into the stiffener core of T‐stiffened skins caused an increase of pressure in stiffener corner, gave the stiffener corner to the opportunity to remove the resin‐rich defect by hindering resin flow into the stiffener corner, and consequently contributed to a significant increase in the fiber compaction and manufacturing quality of T‐stiffeners. POLYM. COMPOS., 31:1360–1368, 2010. © 2009 Society of Plastics Engineers

Temperature field analysis of solar chimney

Analysis of various parameters on the temperature field in solar chimney, for natural convection and heat transfer of the controlling parameters of Rayleigh number Ra and the structural number of width ratio height w and inlet height of air ratio the height of chimney h0 by direct numerical simulation. The conclusion drawn in the paper can promote the development of integrative technology for solar and architecture.

Systems Biology footprint

Systems Biology, a new and validated integrative technology, finds many uses in the fields of cosmetics and nutraceuticals, accelerating the design of new products, and providing scientific support for health claims. Three practical situations are presented to illustrate how systems biology can be applied in the nutraceuticals and cosmetics area. 1 Positive relation between ketogenic diets and diabetes 2 Cosmetics and skin aging 3 Enhancing wellbeing effect.

Cellular reprogramming of human amniotic fluid cells to express insulin

Islet transplantation represents a potential cure for type 1 diabetes; however, a lack of sufficient donor material limits its clinical use. To address the shortfall of islet availability, surrogate insulin-producing cells are sought. Studies suggest that human amniotic fluid (hAF) contains multipotent progenitor cells capable of differentiating to all three germ layers. Here, we used high-content, live-cell imaging to assess the ability to reprogram hAF cells towards a beta cell phenotype. A fluorescent reporter system was developed where DsRed express (DSRE) expression is driven by the human insulin promoter. Using integrative lentiviral technology, we created stable reporter hAF cells that could be routinely monitored for insulin promoter activation. These cells were subjected to combinatorial high-content screening using adenoviral-mediated expression of up to six transcription factors important for beta cell development. Cells were monitored for DSRE expression which revealed an optimal combination of the transcription factors required to induce insulin gene expression in hAF cells. These optimally induced cells were examined for expression of additional beta cell transcription factors and proteins involved in glucose sensing and insulin processing. RT-qPCR revealed very low level expression of insulin that was ultimately insufficient to reverse streptozotocin-induced diabetes following sub-capsular kidney transplantation. High-content, live-cell imaging using fluorescent reporter cells provides a convenient method for repeated assessment of cellular reprogramming. hAF cells could be reprogrammed to express key beta cell proteins, however insulin gene expression was insufficient to reverse hyperglycemia in diabetic animals.