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dETERMINATION OF FIBER PROOF-TEST STRESS FOR UNdERSEA LIGHTGUIdE CABLE

AT&T TECHNICAL JOURNAL 1985年第4期64卷 971-982页

作者： CHU, TC CHANdAN, HC Authors are employees of AT&T Bell Laboratories. Harish C. Chandan: B. Tech. and M. Tech. (Metallurgical Engineering) in 1969 and 1971 respectively Indian Institute of Technology Kanpur India M.S. (Solid State Science) 1974 Syracuse University Ph.D. (Ceramics Science) 1977 Pennsylvania State University AT&T Bell Laboratories 1977—. Tek-Che Chu: B.S. 1964 Cheng Rung University (Taiwan) M.S. 1967 Syracuse University Ph.D. 1971 (Aerospace Engineering) Cornell University AT&T Bell Laboratories 1972—.

A method is developed to determine the fiber strength requirements for the undersea lightguide cable. This method utilizes the theories involved in fiber proof testing, undersea cable dynamics, and nonlinear tensile behavior of cable. The method is illustrated with a sample cable currently being developed for the transatlantic system. This method provides great flexibility in designing undersea lightguide cable. It can be applied to justify a new cable design at an early stage or to select proper fiber proof-test levels for an existing cable under different operating conditions, i.e., deeper ocean, worse sea state, or faster recovery.

关键词： TELECOMMUNICATION CABLES

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Effect of mouth-opening levels on sound field gain in the ear canal 45

Effect of mouth-opening levels on sound field gain in the ea...

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45th International Congress and Exposition on Noise Control engineering: Towards a Quieter Future, INTER-NOISE 2016

作者： Xiao, Jimg-Hong Yu, Jen-Fang Lee, Kun-Che Chiu, Hsiu-Hui Graduate Institute of Medical Mechatronics Chang Gung University Taiwan Taiouan Interdisciplinary Otolaryngology Laboratory Chang Gung University Taiwan Ph.D. Program in Biomedical Engineering College of Engineering Chang Gung University Taiwan

The human ear canal can become deformed when the mouth opens and closes, changing the sound field in the external auditory canal. Thus, measuring the mandibular movement trajectory may provide a reference for identifying mouth-opening levels. The human ear canal can become deformed when the mouth opens and closes, changing the sound field in the external auditory canal. Thus, measuring the mandibular movement trajectory may provide a reference for identifying mouth-opening levels. The K7 system and a Frye Fonix 7000 sensor were used to perform several measurements of mouth-opening and -closing to obtain the mean maximal mouth opening level. The mandible was fixed at the 1/3, 2/3, and maximal mouth-opening levels. Subsequently, a 65-dB sweep tone, which is the sound pressure level of people talking at a normal level, was adopted as the sound stimulus to measure sound fields at 5, 10, 15, and 20 mm from the entrance of the external auditory canal. The stimulus frequencies of 200, 500, 1000, 2000, 4000, 6000, and 8000 Hz were noted. The differences in sound field gains at depths of 5, 10, 15, and 20 mm were analyzed for the various mouth-opening levels. The results show that except for the 1.70-dB decrease at a depth of 5 mm with an 8000-Hz stimulus frequency, the differences at the other depths and stimulus frequencies were within 1 dB. Thus, the mouth-opening levels will influence the gain in ear canal. © 2016, German Acoustical Society (dEGA). All rights reserved.

关键词： Acoustic fields

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development of intelligent massage manipulator and reconstruction of massage process path using image processing technique

Development of intelligent massage manipulator and reconstru...

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2010 IEEE International Conference on Robotics, Automation and Mechatronics, RAM 2010

作者： Peng, Chih-Cheng Hwang, Thong-Shing Lin, Chih-Jui Wu, Yao-Ting Chang, Ching-Yi Huang, Jian-Bin Ph.D. Program Graduate Institute of Electrical and Communications Engineering Feng Chia University Taiwan Department of Automatic Control Engineering Feng Chia University Taiwan Graduate Institute of Electrical Engineering National Cheng Kung University Taiwan

ISBN: (纸本)9781424465033

This paper develops a motor-driven massage artificial electro-mechanical manipulator system with intelligent biomedical sensing-monitoring capabilities and constructs the path of massage process by using CCd image processing technique. In this paper, we integrate a versatile inter-digital electrocardiograph (ECG) into the manipulator system and construct a massage path by using twin CCd image processing technique with inverse engineering method. So, this electromechanical manipulator can automatically do the full massage process including pushing, pick-up and kneading actions to get the best therapy effect. By capturing the variant signals of the cardiovascular physiological parameters from the versatile inter-digital electrocardiograph, we can understand and analyze the physiological reaction due to the massage action and then try further to improve the therapy effect of massage. In the meantime, we have imitated a real human's palm with finger's action to design a human-like mechanical palm and accomplished the actions of massage including "pushing, picking-up, and kneading", the most decisive technique is lying on the design of the fingers. ©2010 IEEE.

关键词： Manipulators

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Visual Field Examination Technology Based on Semi-transparent Elliptical Mirror 6

Visual Field Examination Technology Based on Semi-transparen...

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6th IEEE Eurasian Conference on Educational Innovation, ECEI 2023

作者： Chang, Chao-Kai Chiang, Chun-Yu Yeh, Feng-Ming Lee, Chi-Hung Tien, Chuen-Lin Chen, der-Chin Department of Optometry Yuanpei University of Medical Technology Hsinchu Taiwan Ph.D. Program of Electrical and Communications Engineering Feng Chia University Taichung Taiwan Department of Electrical Engineering Feng Chia University Taichung Taiwan

ISBN: (纸本)9798350334289

In this study, the human visual field test technology is established by using an optoelectrical system consisting of a translucent ellipsoid, an area light source, and a landscape scene with an indicator. during the test, the subjects stared at the indicator directly in front of them with one eye and kept their eyeballs still, scanning the light strip with peripheral vision and using the mouse button plus the playback program to record the start and end positions of the scanning light strip in the landscape scene. This method is tested subjectively, and the subject needs to respond during the test. Therefore, before the test, the subject needs to understand the test process and be trained in advance to improve the exam accuracy. In the experiment, fifteen subjects with normal vision and no eye disease were selected. Their visual fields were confirmed normal after a preliminary assessment. The test results showed that the subjects' eyes were within the normal visual field, indicating that this method was feasible. In this research, a digital optical platform for the near visual field is proposed to establish an optoelectric visual field measurement technology. The proposed method is characterized by small size, rapid operation, and easy portability. With the digital LCd and visual imaging technology, both dynamic and static visual fields can be tested. The test data on the eyes' upper, lower, nasal, and temporal sides were consistent with the normal visual field. This shows that this method is feasible and worthy of promotion in the optometry industry. © 2023 IEEE.

关键词： Light sources

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An agent-based model of trade with distance-based transaction cost

An agent-based model of trade with distance-based transactio...

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Summer Computer Simulation Conference 2006, SCSC 2006, Part of the 2006 Summer Simulation Multiconference, SummerSim 2006

作者： Venkat, Kumar Wakeland, Wayne W. Surya Technologies Inc. 4888 NW Bethany Blvd. Portland OR 97229 United States Systems Science Ph.D. Program Portland State University Portland OR 97207 United States

ISBN: (纸本)9781622763528

This paper describes an application of agent-based modeling to investigate the effect of a distance-based transaction cost on trade. Long-distance trade is rapidly increasing, but may ultimately be constrained by our ability to move material goods between sellers and buyers. Unlike information exchange, trade in material goods is dependent on the price of oil and vulnerable to future scarcities of oil. In addition, there are growing concerns about greenhouse gas emissions from long-distance transportation. Our purpose in this study is to take the first step in understanding the impact of a distance constraint on free global trade using a simple artificial economy. We use the perspective of agent-based computational economics to model two different scenarios of random initial allocations of goods among traders, and investigate the response of the economy as a distance-based transaction cost is applied. We show that a geographically skewed initial allocation of goods performs poorly, while a more uniform initial distribution responds in a highly resilient way as the transaction cost is varied. Underlying this resilience is the emergence of a stable trade network that has some of the properties of scale-free networks.

关键词： Commerce

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Corporate planning, forecasting, and the long wave

Corporate planning, forecasting, and the long wave

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Portland International Conference on Management of engineering and Technology (PICMET)

作者： H.A. Linstone Systems Science Ph.D. Program Portland State University Portland OR USA

The author describes how his two decades of experience in corporate planning and three in professional journal editing suggest a correlation of technological innovation clusters, corporate planning and technological forecasting with the well-known 50 to 60 year-long wave cycles, i.e., the knowledge consolidation associated with the upswing phase and the creative destruction/knowledge innovation corresponding to the downswing phase of the 4/sup th/ long wave.

关键词： Technological innovation Technology forecasting Technology planning Space technology Evolution (biology) Power generation economics Economic forecasting Military computing Operations research Information technology

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Emulation of analog audio circuits on FPGA using wave digital filters 16

Emulation of analog audio circuits on FPGA using wave digita...

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2nd International Conference on Communication and Information Processing, ICCIP 2016

作者： Hernandez, diego Hsieh, Yi Lin Huang, Jin Ph.D. Program in Mechanical and Aeronautical Engineering Feng Chia University Taichung Taiwan Basic Research Department Merry Electronics Taichung Taiwan Department of Mechanical and Computer-aided Engineering Feng Chia University Taichung Taiwan

ISBN: (纸本)9781450348195

This paper presents a Wave digital Filter (WdF) emulation system suitable for audio applications implemented on a Field programmable Gate Array (FPGA). The WdF structures are programmed in the reconfigurable FPGA CompactRIO via LabVIEW. When the system runs in real-time, the circuit parameters are controlled and monitored via a graphical user interface on a host computer. A tone control and a three way crossover filter are presented as application examples. The WdF emulations are validated by measuring the signals from the FPGA I/O modules with a data acquisition system. Measurement results confirm the accuracy of the presented examples and the reliability of CompactRIO to perform WdF audio circuit emulations. © 2016 ACM.

关键词： Graphical user interfaces

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SINGLE-CHIP IMPLEMENTATION OF FEATURE MEASUREMENT FOR LPC-BASEd SPEECH RECOGNITION

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AT&T TECHNICAL JOURNAL 1985年第8期64卷 1787-1805页

作者： ACKENHUSEN, JG OH, YH AT&T Bell Laboratories. John G. Ackenhusen: B.S. (Physics) B.S.E. (Nuclear Engineering) M.S. (Physics) M.S.E. (Nuclear Engineering) 1976 Ph.D. (Nuclear Engineering) 1977 University of Michigan AT&T Bell Laboratories 1978—. AT&T Bell Laboratories now with Texas Instruments. Young Hwan Oh: B.S. 1971 M.S. 1974 Ph.D. 1974 (Electrical Engineering) University of New Mexico M.B.A. Program 1971–1972 GTE Automatic Electric Laboratories 1978–1981 AT&T Bell Laboratories 1981–1984 Texas Instruments 1984—.

A single-chip implementation of Linear Predictive Coding (LPC)-based feature measurement for speech recognition, called the Feature Extracting digital Signal Processor (FXdSP), has been developed by programming the AT&T dSP20 ™ programmable digital Signal Processor (dSP) and has been verified by both numerical simulation and system use. For identical input, the recognition distance between floating point simulation and the dSP implementation was found to be negligibly small when compared with distances for word matches. The feature-measurement technique is identical to that used in numerical simulations of LPC-based isolated- and connected-word recognition using combinations of dynamic time warping, vector quantization, and hidden Markov modeling. As a result, the FXdSP represents a single-chip common building block for real-time implementation of most speech recognition techniques under investigation at AT&T Bell Laboratories. The FXdSP performs eighth-order LPC analysis on speech received from a standard COdEC. In every frame period (15 ms) it produces a feature vector consisting of the log energy, nine amplitude-normalized autocorrelation coefficients, and nine LPC-based test-pattern coefficients. The feature-measurement program requires 1023 locations of the 1024 available in on-chip program ROM, 211 of 256 available RAM locations, and 75 percent of available real time.

关键词： SPEECH

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Altruism, the prisoner's dilemma, and the components of selection

Altruism, the prisoner's dilemma, and the components of sele...

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IEEE International Conference on Systems, Man and Cybernetics

作者： J.A. Fletcher M. Zwick Systems Science Ph.D. Program Portland State University Portland OR USA

The n-player prisoner's dilemma (Pd) is a useful model of multilevel selection for altruistic traits. It highlights the nonzero-sum interactions necessary for the evolution of altruism as well as the tension between individual and group-level selection. The parameters of the n-player Pd can be directly related to the equation due to Price (1970) as well as to a useful alternative selection decomposition. Finally, the n-player Pd emphasizes the expected equilibrium condition of mutual defection in the absence of higher levels of organization and selection.

关键词： Equations Evolution (biology) Biological systems Organisms Game theory Costs Psychology Ethics Computer simulation Marine animals

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Hamilton's rule applied to reciprocal altruism

Hamilton's rule applied to reciprocal altruism

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Congress on Evolutionary Computation

作者： J.A. Fletcher M. Zwick Systems Science Ph.D. Program Portland State University Portland OR USA

Reciprocal altruism and inclusive fitness are generally considered alternative mechanisms by which cooperative, altruistic traits may evolve. Here we demonstrate that very general versions of Hamilton's inclusive fitness rule (developed by Queller) can be applied to traditional reciprocal altruism models such as the iterated prisoner's dilemma. In this way we show that both mechanisms rely fundamentally on the same principle - the positive assortment of helping behaviors. We discuss barriers to this unified view, including phenotype/genotype differences and nonadditive fitness (or utility) functions that are typical of reciprocal altruism models. We then demonstrate how Queller's versions of Hamilton's rule remove these obstacles.

关键词： Equations Genetics Frequency Productivity Yarn Predictive models Costs

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