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A web-based, hospital-wide health care-associated bloodstream infection surveillance and classification system: Development and evaluation

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JMIR Medical Informatics 2015年第3期3卷 e31页

作者： Tseng, Yi-Ju Wu, Jung-Hsuan Lin, Hui-Chi Chen, Ming-Yuan Ping, Xiao-Ou Sun, Chun-Chuan Shang, Rung-Ji Sheng, Wang-Huei Chen, Yee-Chun Lai, Feipei Chang, Shan-Chwen Graduate Institute of Biomedical Electronics and Bioinformatics National Taiwan University Taipei Taiwan Computational Health Informatics Program Boston Children's Hospital Boston MA United States Department of Electrical Engineering National Taiwan University Taipei Taiwan Center for Infection Control National Taiwan University Hospital Taipei Taiwan National Taiwan University Hospital Information Systems Office Taipei Taiwan Department of Computer Science and Information Engineering National Taiwan University Taipei Taiwan Department of Internal Medicine National Taiwan University Hospital and College of Medicine Taipei Taiwan National Health Research Institutes National Institute of Infectious Diseases and Vaccinology Miaoli Taiwan

Background: Surveillance of health care-associated infections is an essential component of infection prevention programs, but conventional systems are labor intensive and performance dependent. Objective: To develop an automatic surveillance and classification system for health care-associated bloodstream infection (HABSI), and to evaluate its performance by comparing it with a conventional infection control personnel (ICP)-based surveillance system. Methods: We developed a Web-based system that was integrated into the medical information system of a 2200-bed teaching hospital in Taiwan. The system automatically detects and classifies HABSIs. Results: In this study, the number of computer-detected HABSIs correlated closely with the number of HABSIs detected by ICP by department (n=20;r=.999 P<.001) and by time (n=14;r=.941;P<.001). Compared with reference standards, this system performed excellently with regard to sensitivity (98.16%), specificity (99.96%), positive predictive value (95.81%), and negative predictive value (99.98%). The system enabled decreasing the delay in confirmation of HABSI cases, on average, by 29 days. Conclusions: This system provides reliable and objective HABSI data for quality indicators, improving the delay caused by a conventional surveillance system. © 2020 JMIR Publications Inc. All rights reserved.

关键词： Health care-associated infection Infection control Information systems Surveillance Web-based services

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Design and implementation of array readout integrated circuit and image system for current mode sensors

Design and implementation of array readout integrated circui...

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IEEE Sensors Applications Symposium, SAS

作者： Tai-Ping Sun Jia-Hao Li Hsiu-Li Shieh Lai-Li Kang Yi-Chuan Lu Teng-Yi Wang Department of Electronics Engineering Nan Kai University of Technology Nantou County Taiwan R.O.C Department of Electrical Engineering National Chi Nan University Nantou County Taiwan R.O.C Graduate Program of Optoelectronic Technology National Chi Nan University

Considered that the dual band sensor system is the most popular design at present, this study discussed the design of a dual-band hybrid array readout circuit. The direct injection circuit structure was used in the unit pixel. The design, simulation, and layout were conducted in the 40um×40um unit pixel to complete middle and long waveband signal readouts, in order to achieve one sensor unit with two sensor modes. The readout circuit chip adopted TSMC 0.35um 2P4M CMOS 5V to design a 16×12 array readout circuit, with an input current range of the measured current at 1.9pA to 50 nA, an adjustable integration time, a maximum frame rate of 110Hz, the output swing of the chip signal of 2V, the maximum operating chip frequency of 3MHz, power dissipation of 18mW, system noise voltage Vrms of 0.68mV, and signal-noise ratio of 69dB. Finally, the tested chip was used to connect the detection system proxy board and digital signal board, and digital signal processing video through front-end filters and analog to digital converter, in order to complete signal conversion and digital signal processing. With the digital control signal provided by the signal board and signal capture, the back-end digital signal was processed and imaged on the screen. The readout circuit chip connected the signal proxy board for testing. The overall system resolution reached 10 bit.

关键词： Arrays Dual band Field programmable gate arrays Noise Infrared sensors Optical sensors

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Design of LCP based Flexible Patch Antenna Array

Design of LCP based Flexible Patch Antenna Array

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2nd Advanced Electromagnetics Symposium, AES 2013

作者： Hamdoun, A.A. Ghaffar, F.A. Shamim, A. Roy, L. Department of Electronics Carleton University Canada Electrical Engineering Program KAUST Saudi Arabia

ISBN: (纸本)9782954546018

A fully characterized 38 GHz flexible two element patch antenna array realized on LCP is presented. A single LCP layer is used to maximize flexibility, allowing wrapping in the E and H planes. Measured and simulated results show relatively small degradation of the gain and radiation performance with wrapping, and a clear advantage of H plane plane bending versus E plane bending. The design is highly suitable for wearable and flexible applications. © 2013 Advanced Electromagnetics Symposium. All rights reserved.

关键词： Microstrip antennas

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Measurement of capacitance and electrical potential of plural points for estimation of permittivity distribution

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IEEJ Transactions on Fundamentals and Materials 2013年第4期133卷 173-179+5页

作者： Okada, Shota Ohchi, Masashi Furukawa, Tatsuya Itoh, Hideaki Fukumoto, Hisao Master's Program in Electrical Graduate School of Engineering Chiba Institute of Technology 2-17-1 Tudanuma Narashino 275-0016 Japan Department of Electrical Electronics and Computer Engineering Faculty of Engineering Chiba Institute of Technology 2-17-1 Tudanuma Narashino 275-0016 Japan Graduate School of Science and Engineering Saga University 1 Honjo-machi Saga 840-8502 Japan

Recently, a method for estimating permittivity distributions was reported. The method combined a numerical technique (Finite Element Method) with Genetic Algorithm (GA). However, methods for estimating the distribution of permittivity have not yet been established. The purpose of this study is to obtain experimental data in order to improve the estimation method. We measured capacitance and electrical potential of plural points when an acrylic rod is placed in various positions within a measurement system. © 2013 The Institute of electrical Engineers of Japan.

关键词： Capacitance

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Design of an efficient active noise cancellation circuit for in-ear headphones

Design of an efficient active noise cancellation circuit for...

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IEEE Asia-Pacific Conference on Circuits and Systems

作者： Kuan-Hung Chen Hong-Son Vu Kuo-Yuan Weng Jin-Huang Huang Yu-Ting Tsai Yu-Cheng Liu Wen-Hung Wang Department of Electronic Engineering Feng Chia University Taichung Taiwan R.O.C Ph.D. Program in Electrical and Communications Engineering Feng Chia University Taichung Taiwan R.O.C Department of Mechanical and Computer-Aided Engineering Feng Chia University Taichung Taiwan R.O.C MERRY Electronics CO. LTD Taichung Taiwan R.O.C

ISBN: (纸本)9781479952311

This paper proposes an efficient active noise cancelling (ANC) circuit design for the in-ear headphones. We develop a hardware oriented Least Mean Square (LMS) adaptive algorithm, and design a modified high-performance feed-forward ANC architecture which only uses one microphone to effectively cancel broadband noise for the in-ear headphones. The proposed ANC circuit design has been successfully implemented through adopting the standard cell-based design flow based on the TSMC 90nm CMOS technology. Besides, the proposed design has been verified under versatile noisy scenarios for its real-time ANC performance by using a Field programmable Gate Array (FPGA) platform. Experimental results show that the proposed high-performance circuit design can reduce disturbing noise of various frequency bands very well, and outperforms the existing works. The proposed design can attenuate the broadband pink noise between 300 Hz to 900 Hz, with a maximum performance of 18 dB. Moreover, the proposed design can achieve 406.5 k samples/sec data throughput rate at operating frequency of 50 MHz, at the costs of 111.7 k gates and power consumption of 4.47 mW.

关键词： Headphones Noise Broadband communication Hardware Circuit synthesis Microphones Finite impulse response filters

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Stimulating auditory nerve with MEMS harvesters for fully implantable and self-powered cochlear implants

Stimulating auditory nerve with MEMS harvesters for fully im...

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2013 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013

作者： Beker, Levent Zorlu, Ozge Goksu, Nebil Kulah, Haluk Ankara Turkey Micro and Nanotechnology Graduate Program METU Ankara Turkey Department of Otorhinolaryngology School of Medicine Gazi University Ankara Turkey Department of Electrical and Electronics Engineering METU Ankara Turkey

ISBN: (纸本)9781467359818

This paper presents a novel method for stimulating auditory nerve inside cochlea via a MEMS piezoelectric energy harvester (PEH) implanted on eardrum or ossicles1. In this method, the harvester composed of several cantilevers with varying resonance frequencies within the hearing band is utilized. The signals generated by each cantilever of the PEH are used to stimulate the corresponding section of the auditory nerve. The proposed method mimics the natural operation of cochlea, therefore eliminates the use of microphone, sound processor, battery, and transmitter that are currently used in conventional cochlear implants (CI's). In this framework, a single-cantilever MEMS PEH prototype is designed and fabricated. The prototype generates adequate signal to stimulate the auditory nerve at a typical eardrum vibration, proving the method's feasibility for the next generation fully implantable and self-powered CI's. © 2013 IEEE.

关键词： Cochlear implants

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Cooperative control of air flow for HVAC systems

Cooperative control of air flow for HVAC systems

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2013 IEEE International Conference on Automation Science and engineering, CASE 2013

作者： Liu, Shuai Long, Yushen Xie, Lihua Bayen, Alexandre M. Centre for E-City School of Electrical and Electronics Engineering Nanyang Technological University Singapore 639798 Singapore SinBerBEST Program Berkeley Education Alliance for Research in Singapore CREATE Tower Singapore 138602 Singapore Department of Electrical Engineering and Computer Sciences Department of Civil and Environmental Engineering University of California Berkeley CA 94720 United States

ISBN: (纸本)9781479915156

A dynamic pressure and variable air volume (VAV) control strategy is proposed for building heating, ventilation and air-conditioning (HVAC) systems. The strategy consists in two level control, namely, pressure loop control and temperature loop control. The pressure control loop is to make sure that the air pressure at the inlet of each room is equal to a certain value while the temperature control loop is to control the room temperature which is achieved by adjusting the VAV box so that the supply air flow rate can be varied to achieve the room setting temperature. For the pressure control loop, a cooperative control technique is applied. The two control loops are coupled. This paper will analyze the stability of the overall system and give a sufficient condition on the initial values in terms of rooms and the HVAC system parameters. © 2013 IEEE.

关键词： Air conditioning

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Image-based food volume estimation

Image-based food volume estimation

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5th International Workshop on Multimedia for Cooking and Eating Activities, CEA 2013

作者： Xu, Chang He, Ye Parra, Albert Delp, Edward Khanna, Nitin Boushey, Carol School of Electrical and Computer Engineering Purdue University West Lafayette IN United States Department of Electronics and Communication Engineering Graphic Era University Dehradun India Cancer Epidemiology Program University of Hawaii Cancer Center Honolulu HI United States

ISBN: (纸本)9781450323925

In this paper, we propose an extension to our previous work on food portion size estimation using a single image and a multi-view volume estimation method. The single-view technique estimates food volume by using prior information (segmentation and food labels) generated from food identification methods we described earlier. For multi-view volume estimation, we use "Shape from Silhouettes" to estimate the food portion size. The experimental results of our volume estimation methods demonstrate our results with respect to accuracy and reliability. © Copyright 2013 ACM.

关键词： Image reconstruction

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Biomimetics: Biomimetic Microfingerprints for Anti‐Counterfeiting Strategies (Adv. Mater. 12/2015)

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Advanced Materials 2015年第12期27卷

作者： Hyung Jong Bae Sangwook Bae Cheolheon Park Sangkwon Han Junhoi Kim Lily Nari Kim Kibeom Kim Suk‐Heung Song Wook Park Sunghoon Kwon Department of Electrical and Computer Engineering Seoul National University Gwanak‐ro Gwanak‐gu Seoul 151‐744 South Korea Center for Nanoparticle Research Institute for Basic Science (IBS) Seoul National University Gwanak‐ro Gwanak‐gu Seoul 151‐744 South Korea Institute of Entrepreneurial Bio Convergence Seoul National University Gwanak‐ro Gwanak‐gu Seoul 151‐744 South Korea Interdisciplinary Program for Bioengineering Seoul National University Gwanak‐ro Gwanak‐gu Seoul 151‐744 South Korea Department of Electronics and Radio Engineering Institute for Laser Engineering Kyung Hee University Deongyeong‐daero Giheung‐gu Yongin‐si Gyeonggi‐do 446‐701 South Korea

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On the performance of Amplify-and-Forward OFDM relaying with subcarrier mapping in Nakagami-m fading channels

On the performance of Amplify-and-Forward OFDM relaying with...

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2013 International Conference on Computing, Management and Telecommunications, ComManTel 2013

作者： Al-Qahtani, Fawaz S. Ha, Dac-Binh Nguyen, Tuong-Duy Alnuweiri, Hussein Electrical and Computer Engineering Program Texas AandM University at Qatar Doha Qatar Research and Development Center for Science and Technology Duy Tan University Danang Viet Nam Faculty of Airline Electronics and Telecommunications Engineering Vietnam Aviation Academy Viet Nam

ISBN: (纸本)9781467320870

In orthogonal frequency division multiplexing (OFDM) relay system, subcarrier mapping at the relay has been shown to substantially improve the performance evidently. In this paper, we investigate the performance analysis of dual-hop OFDM relay systems with subcarrier mapping over Nakagami-m fading channels. A closed-form expression of outage probabilty is derived for Amplify-and-Forward OFDM Relay System with subcarrier mapping. The efficiency of the analytical performance is demonstrated through simulation results. © 2013 IEEE.

关键词： Orthogonal frequency division multiplexing

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