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An automated bottle filling and capping project for freshman engineering students

An automated bottle filling and capping project for freshman...

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2010 ASEE Annual Conference and Exposition

作者： Meah, Kala Garrison, Timothy Kearns, James Link, Gregory Garrison, Laura Blanding, Wayne Celik, Emine Kuchnicki, Stephen Dawson, Jennifer McFarland, Barry Department of Physical Science York College of Pennsylvania United States Mechanical Engineering Program York College of Pennsylvania United States Department of Electrical and Computer Engineering York College of Pennsylvania United States Department of Thermal Sciences Freshmen Design Courses and Computer Programming York College of Pennsylvania United States Department of Electrical Engineering York College of Pennsylvania United States York College of Pennsylvania United States Department of Mechanical Engineering York College of Pennsylvania United States

All freshman engineering students at York College participate in a spring semester design challenge as part of a year-long, two-course introduction to engineering. This paper describes the course organization, the project goals, and project itself and how it supports the broader engineering curriculum goals of engaging freshman engineering students in a design project, exposing them in an interesting way to the breath of engineering, and motivating them in their engineering studies. The students work in small teams and have roughly 12 weeks to design an automated electromechanical system that first transports three empty Snapple bottles, three tennis balls, and 36 oz. of water to a 2/x3/ operational zone. The machine must fill each bottle with 12 oz. of water, cap each bottle by covering the top with a tennis ball, and then deliver the capped and filled bottles to an area outside of the operational zone. The bottle-filling project serves as the second of two interdisciplinary engineering design experiences during the freshman year. It introduces aspects of computer, electrical, and mechanical engineering, including the following five primary knowledge areas: (i) machining and fabrication;(ii) electronic circuit prototyping and programming;(iii) sensor and actuator applications;(iv) mechanical design;(v) project planning;and (vi) presentation skills. A project demonstration at the end of the semester determines the relative effectiveness of each machine based upon a number of quantitative factors, including the total time required to complete the overall process, the volume of water in each bottle, the number of bottles successfully capped, the amount of water spilled, and approximate manufacturing cost. Some qualitative factors considered are simplicity, creativity, and aesthetics. Student interest in this substantial hands-on experience, as measured by surveys and exhibited by attendance, enthusiasm, productivity, and success, appears to be high through the three y

关键词： Bottles

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SPRING: Speech and pronunciation improvement through games, for hispanic children 10

SPRING: Speech and pronunciation improvement through games, ...

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4th ACM/IEEE International Conference on Information and Communication Technologies and Development, ICTD 2010

作者： Tewari, Anuj Goyal, Nitesh Chan, Matthew K. Yau, Tina Canny, John Schroeder, Ulrik Department of Electrical Engineering and Computer Sciences Berkeley Institute of Design University of California 387 Soda Hall #1776 Berkeley CA 94720-1776 United States Informatik 9 Computer-Supported Learning RWTH Aachen University Ahornstr. 55 52056 Aachen Germany

ISBN: (纸本)9781450307871

Lack of proper English pronunciations is a major problem for immigrant population in developed countries like U.S. This poses various problems, including a barrier to entry into mainstream society. This paper presents a research study that explores the use of speech technologies merged with activity-based and arcadebased games to do pronunciation feedback for Hispanic children within the U.S. A 3-month long study with immigrant population in California was used to investigate and analyze the effectiveness of computer aided pronunciation feedback through games. In addition to quantitative findings that point to statistically significant gains in pronunciation quality, the paper also explores qualitative findings, interaction patterns and challenges faced by the researchers in dealing with this community. It also describes the issues involved in dealing with pronunciation as a competency. Copyright 2010 ACM.

关键词： computer games

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Addressing Response Time and Video Quality in Remote Server Based Internet Mobile Gaming

Addressing Response Time and Video Quality in Remote Server ...

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IEEE Conference on Wireless Communications and Networking

作者： Shaoxuan Wang Sujit Dey Mobile System Design Lab Department of Electrical and Computer Engineering University of California San Diego USA

A new remote server based gaming approach, where the responsibility of executing the gaming engines is put on remote servers instead of the mobile devices, has the potential for enabling mobile users to play the same rich Internet games available to PC users. However, the mobile gaming user experience may be limited by risks of unacceptably high response time, and low gaming video quality, as gaming control commands, and the resulting gaming video, have to travel through wireless networks characterized by high bandwidth fluctuations, latency and packet loss. In this paper, we propose a set of application layer optimization techniques to ensure acceptable gaming response time and video quality in the remote server based approach. The techniques include downlink gaming video rate adaptation, uplink delay optimization, and client play-out delay adaptation. Experiments conducted on a commercial HSDPA network demonstrate that the proposed optimization techniques can make the remote server based approach feasible, allowing rich Internet games to be played on mobile devices, while ensuring acceptable user experience.

关键词： Delay Web server Internet Games Network servers Search engines Wireless networks Bandwidth Fluctuations Downlink

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Wavelet electromagnetic field processing: Multidimensional fast wavelet transform decomposition of time and frequency domain electromagnetic fields

Wavelet electromagnetic field processing: Multidimensional f...

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Antennas and Propagation Society International Symposium

作者： Adrian Ngoly Steve McFee Computational Analysis and Design Laboratory Department of Electrical and Computer Engineering McGill University Montreal QUE Canada

ISBN: (纸本)9781424449675

This paper presents a wavelet processing method for time and frequency domain electromagnetic fields for the rigorous and efficient inspection of the wave physics properties of transient and time-harmonic electromagnetic field solutions. More specifically, this research expounds upon the construction of (discrete) isotropic Fast Wavelet Transform (FWT) decompositions for multidimensional time and frequency domain electromagnetic fields with applications to electromagnetic radiation and scattering. In this work, discretely sampled space-time and space-frequency electromagnetic fields are processed using the (isotropic) Fast Wavelet Transform (FWT) algorithm [5], customized here to address real (IR) and complex (C) valued electromagnetic vector fields. Moreover, the structure and physical interpretation of the wavelet coefficients are described in detail.

关键词： Electromagnetic fields Wavelet transforms Frequency domain analysis Wavelet domain Transient analysis Electromagnetic scattering

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Rendering Adaptation to Address Communication and Computation Constraints in Cloud Mobile Gaming

Rendering Adaptation to Address Communication and Computatio...

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2010 IEEE Global Telecommunications Conference GLOBECOM 2010

作者： Shaoxuan Wang Sujit Dey Mobile System Design Laboratory Department of Electrical and Computer Engineering University of California San Diego USA

A new Cloud Mobile Gaming (CMG) approach, where the responsibility of executing the gaming engines, including the most compute intensive tasks of graphic rendering, is put on cloud servers instead of the mobile devices, has the potential for enabling mobile users to play the same rich Internet games available to PC users. However, the mobile gaming user experience may be limited by the communication constraint imposed by available wireless networks and computation constraint imposed by the cost and availability of cloud servers. In this paper, we propose a rendering adaptation technique which can adapt the game rendering parameters to satisfy CMG communication and computation constraints, such that the overall mobile gaming user experience is maximized. Experiments conducted on a commercial UMTS network demonstrate that the proposed rendering adaptation techniques can make the CMG approach feasible: ensuring protection against wireless network conditions, and ensuring server computation scalability, thereby ensuring acceptable mobile gaming user experience.

关键词： Rendering (computer graphics) Games Servers Mobile communication Engines Graphics processing unit

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A sensor network configuration considering priori estimation error and communication energy

A sensor network configuration considering priori estimation...

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12th IFAC Symposium on Large Scale Systems: Theory and Applications, LSS 2010

作者： Takeda, Takashi Namerikawa, Toru Division of Electrical Engineering and Computer Science Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan Department of System Design Engineering Ke University 3-14-1 Hiyoshi Kohoku-ku Yokohama 223-8522 Japan

ISBN: (纸本)9783902661913

This paper deals with a network configuration considering priori estimation error variance and communication energy in sensor networked feedback system. Each sensor transmits information to a fusion center via multi-hop communication network. We propose a novel network configuration algorithm that each sensor node transmits information with a same dimension. The transmitted information is merged in each sensor node and consists of measurement data with time delay. Then the priori estimate can be minimum variance estimation. The proposed algorithm achieves sub-optimal network topology with minimum energy and a desired variance. Experimental results show an effectiveness of the proposed method.

关键词： Sensor nodes

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Optimal sensor network configuration based on control theory

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作者： Takeda, Takashi Namerikawa, Toru Division of Electrical Engineering and Computer Science Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan Department of System Design Engineering Keio University 3-14-1 Hiyoshi Kohoku-ku Yokohama 223-8522 Japan

ISBN: (纸本)9783642127069

Introduction: Recently wireless sensor networks with the function distribution of memory units, communications, calculations etc. have attracted much attention, and there has been increasing research [1, 2]. In these researches, sensor nodes are connected wirelessly and some local estimates are merged into the common estimate by the wireless communication. It is well known that sensor networks are superior to a observation by a system with single sensor in a fault tolerance, load reduction of operator, collection and application of information etc. and its application to not only a sensing system but also the guidance control system via a sensor network has received attention. For example, traffic control systems, nano-medicines and disaster countermeasures. Meanwhile, each sensor node requires electric power more than a case of only sensing because of communications and calculations, but sensor nodes are generally powered and driven by batteries. Moreover it is difficult to change batteries frequently or charge by power cable because of increasing of costs. Therefore, it is important to utilize the energy efficiently to achieve the energy-saving and prolong sensor nodes life. For this requirement, the sensor scheduling, the optimization of the communication rate and communications traffic and decreasing communication distances by the multi-hop communication are discussed [4,3, 5]. Consequently, in this paper, we discuss a sensor scheduling problem selecting available sensor nodes considering the estimation error variance and communication energy in a feedback control system via a sensor network. © 2010 Springer-Verlag.

关键词： Adaptive control systems

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Research and implementation of ontology conflict detection and reasoning based on description logic for forest disease and pest diagnosis

Research and implementation of ontology conflict detection a...

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2nd International Workshop on Education Technology and computer Science, ETCS 2010

作者： Wang, Nihong Li, Dan Hua, Pan Liang, Zhiqiang College of Information and Computer Engineering Northeast Forestry University Harbin China College of Mechanical and Electrical Engineering Northeast Forestry University Harbin China Department of Science and Technology Northeast Forestry University Harbin China Forestry Reconnaissance and Design Institute of Heilongjiang Province Harbin China

ISBN: (纸本)9780769539874

This paper focused on ontology reasoning and conflict detection based on description logic. It presented the formal definition of forest disease and pest diagnosis ontology, which can reveal the clear hierarchy structure of knowledge. SWRL rules are built from the ontology that can have application in the reasoning of forest disease and pest diagnosis system. And ontology conflict detections of individual consistency checking and relation consistency checking are proposed and designed in this paper. The reasoning process is also designed, and can provide reference information in other domain applications. © 2010 IEEE.

关键词： Ontology

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Digitally controlled integrated pseudo-CCM SIMO converter with adaptive freewheel current modulation

Digitally controlled integrated pseudo-CCM SIMO converter wi...

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Annual IEEE Conference on Applied Power Electronics Conference and Exposition (APEC)

作者： Yi Zhang Dongsheng Ma Integrated System Design Laboratory Department of Electrical and Computer Engineering University of Arizona Tucson Tucson AZ USA

ISBN: (纸本)9781424447824

In this paper, a digitally controlled integrated single-inductor multiple-output (SIMO) converter operating in pseudo-CCM (PCCM) mode is presented. With an adaptive freewheel current modulation (AFCM) technique, conduction loss of the freewheel switch is significantly reduced in unbalanced load conditions. Moreover, cross-regulation and switching noise are both effectively restricted. A prototype of a single-inductor dual-output (SIDO) boost converter was designed with a 130-nm CMOS process. The two outputs are regulated at 2.5 V and 1.8 V respectively, at a switching frequency of 500 KHz. The simulation results indicate that the expectant specifications are well implemented.

关键词： Digital control Programmable control Adaptive control Digital modulation Inductors Switches Switching converters Control systems Dynamic voltage scaling DC-DC power converters

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Integrated switched-capacitor voltage doubler with clock transition periods boosting and transfer blocking techniques

Integrated switched-capacitor voltage doubler with clock tra...

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Annual IEEE Conference on Applied Power Electronics Conference and Exposition (APEC)

作者： Phong Ngo Dongsheng Ma Integrated System Design Laboratory Department of Electrical and Computer Engineering University of Arizona Tucson Tucson AZ USA

In this paper, a CMOS switched-capacitor voltage doubler is proposed. It employs the techniques of clock synchronization and charge transfer blocking to minimize the reversion loss. The clock transition period detection and boosting circuit modules allow continuous charge action to the output node, which significantly improves operation performances. The proposed voltage doubler was designed using IBM 180 nm CMOS process, with a 1.2 V supply voltage. Under no-load condition, it achieves 99.92% of ideal voltage level with 8 mV voltage ripple, while consuming only 9.6 ¿W of quiescent power. With a load ranging from 20 k¿ to 200 k¿, the up-conversion ratio performs 45% better than the prior arts.

关键词： Clocks Boosting Charge transfer Switching converters Charge pumps Power supplies Timing Capacitors Threshold voltage Topology

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