Recent interdisciplinary discoveries in the sciences and engineering at the nanoscale, specifically in our ability to manipulate, molecules at atomic scales, suggests a need for the education community to reconsider t...
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ISBN:
(纸本)0805861742
Recent interdisciplinary discoveries in the sciences and engineering at the nanoscale, specifically in our ability to manipulate, molecules at atomic scales, suggests a need for the education community to reconsider the ways in which disciplinary-based sciences and mathematics are being taught in schools, as well as how the public might engage with nanoscale phenomena. this session will discuss key learning questions and their importance in helping to advance both conceptual reasoning from the macro, micro, nano, and atomic levels, as well as their implications for curricular restructuring, public programming, and teacher professional development. the timeliness and broader importance of this research derives in part from two NSF-sponsored workshops on nanoscale education held in 2005, the National Nanotechnology Initiative, and two multi-institutional NSF awards: a National Center for Learning and Teaching and the Nanoscale Informal Science Education Network. this session will discuss research implications for the learning sciences and education community.
there is a need to measure deep in situ moisture conditions for all types of waste storage facilities in a safe, cost effective, practical, and efficient manner. this paper describes the Deep Diviner moisture probe, a...
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ISBN:
(纸本)9781622760855
there is a need to measure deep in situ moisture conditions for all types of waste storage facilities in a safe, cost effective, practical, and efficient manner. this paper describes the Deep Diviner moisture probe, a deep capacitance moisture sensor, which has been developed by the authors withthe assistance of the Canada Industrial Research Assistance Program (IRAP). the deep capacitance moisture probe uses the Diviner 2000®, a portable capacitance soil moisture monitoring sensor manufactured by Sentek Sensor Technologies. this portable probe was developed for irrigation management, and is a nonradioactive sensor. Development of the deep capacitance moisture probe involved modifying the Diviner 2000®, which has a limited depth range of 1.6 m, to allow the measurement of volumetric water content to depths of 40 m or 50 m, and possibly deeper. A winch / cable assembly was developed to lower the sensor down within a PVC access tube to allow for fully automated measurement of in situ moisture contents at user specified depth intervals, each of which are recorded on a portable datalogger. the prototype of the deep capacitance moisture probe was tested both in the laboratory and in a full-scale field situation to ensure the required hardware modifications were functional. Full scale field testing was also completed on the prototype. the results of this testing show that the deep capacitance moisture sensor is capable of measuring the water content of till and sand materials to depths of 6 m. this paper describes the development and testing of the deep capacitance moisture.
Games are a nascent topic for educational research, with an increasing number of conferences (e.g. Games, Learning, & Society), print publications (e.g. Games & Culture), and even federal grants (e.g. Quest At...
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ISBN:
(纸本)0805861742
Games are a nascent topic for educational research, with an increasing number of conferences (e.g. Games, Learning, & Society), print publications (e.g. Games & Culture), and even federal grants (e.g. Quest Atlantis, RiverWorld, Whyville) recently given to the study and design of gaming technologies in/for education. However, to date, games have been chronically under-theorized - a "technology in search of a paradigm" (Gredler, 1996). this symposium proposes new conceptualizations of games in relation to education. Our collective goal is to better articulate the nature of contemporary interactive technologies so as to forward educational theory;each paper addresses crucial aspects of games and gaming culture against a backdrop of research on learning, education, and society (c.f. Shaffer, Squire, Halverson, & Gee, 2005;Steinkuehler, in press). To do so, this unique symposium combines (a) ethnographies of naturally occurring game environments, (b) game-based learning programs based on findings of how learning occurs in such environments (c) a an empirical model based on games for thought, a type of professional practice simulation games, and (d) a research project using games and game technologies for social science theorizing. Together, these papers suggest new directions for the cognitive sciences pointing toward how to design learning systems for an information age networked society.
this paper discusses the attempts to combine classical enterprise information systems development methodologies with component-based approach. It argues to use component-oriented paradigm for the development of system...
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this paper discusses the attempts to combine classical enterprise information systems development methodologies with component-based approach. It argues to use component-oriented paradigm for the development of systems at all three layers of enterprise. the paper presents principles and concepts of this paradigm in enterprise engineering context, proposes component abstraction as realization technique of most general engineering principles which can reduce the complexity of integrated enterprise information system development and maintenance the integrated enterprise information system components and their types are discussed
the proceedings contain 62 papers. the topics discussed include: ultrasonically modulated x-ray phase contrast and vibration potential imaging methods;capacitive micromachined ultrasonic transducers (CMUTs) for photoa...
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ISBN:
(纸本)0819461288
the proceedings contain 62 papers. the topics discussed include: ultrasonically modulated x-ray phase contrast and vibration potential imaging methods;capacitive micromachined ultrasonic transducers (CMUTs) for photoacoustic imaging;imaging of gene expression in vivo with photoacoustic tomography;in-vivo testing optoacoustic system for image-guided biopsy of prostate;in vivo functional photoacoustic imaging of brain tumor vasculature;elimination of leukemic cells from human transplants by laser nano-thermolysis;photoacoustics of individual live cells and particles;a noninvasive optical probe for breast cancer: diagnostic use of acoustically induced blood stasis;and imaging of venous valves with photoacoustics.
Globalization and deregulation are modifying the competitive framework in the majority of economic sectors and, as a result, many companies are changing their commercial model to focus on the preservation of existing ...
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We present a program logic, Lc, which modularly reasons about unstructured control flow in machine-language programs. Unlike previous program logics, the basic reasoning units in Lc are multiple-entry and multiple-exi...
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this paper describes the use of LinuxGym - software which assists a student's learning of Linux scripting, from directory listing to advanced Perl programming. the software randomly generates new tasks for each st...
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this paper describes the use of LinuxGym - software which assists a student's learning of Linux scripting, from directory listing to advanced Perl programming. the software randomly generates new tasks for each student and is used to check their attempts for the purpose of both formative and summative assessment. While the tasks are smaller than an assignment-sized software development project, they are nevertheless actual Linux usage (rather than a simulation) and enable a large number of practice and feedback loops, rather than just one or two large submissions. As a result, there has been a far lower failure rate and student surveys indicate a high level of motivation and satisfaction with its use
the proceedings contain 65 papers. the topics discussed include: decision table based analysis of trading models;a three-layer model for software engineering metrics;design phase analysis of software qualities using a...
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ISBN:
(纸本)076952611X
the proceedings contain 65 papers. the topics discussed include: decision table based analysis of trading models;a three-layer model for software engineering metrics;design phase analysis of software qualities using aspect-oriented programming;applying dynamic change impact analysis in component-based architecture design;transforming linear terms of algebraic specifications into extended pomsets;an extension of robustness slicing algorithm based on dynamic array;text classification by combining different distance functions with weights;network intrusion detection through genetic feature selection;minimizing multicast communication latency in WAN-based environment;a software tool for network traffic analysis;topology control and mobility management in mobile Ad Hoc Networks;approximation algorithm for maximum lifetime in wireless sensor networks with data aggregation;and a survey of software estimation techniques and project planning practices.
We present a novel tracking algorithm that uses dynamic programming to determine the path of target objects and that is able to track an arbitrary number of different objects. the traceback method used to track the ta...
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We present a novel tracking algorithm that uses dynamic programming to determine the path of target objects and that is able to track an arbitrary number of different objects. the traceback method used to track the targets avoids taking possibly wrong local decisions and thus reconstructs the best tracking paths using the whole observation sequence. the tracking method can be compared to the nonlinear time alignment in automatic speech recognition (ASR) and it can analogously be integrated into a hidden Markov model based recognition process. We show how the method can be applied to the tracking of hands and the face for automatic sign language recognition
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