WorldWideScience

Sample records for satcom terminal research

  1. Recent technical advances in general purpose mobile Satcom aviation terminals

    Science.gov (United States)

    Sydor, John T.

    A second general aviation amplitude companded single sideband (ACSSB) aeronautical terminal was developed for use with the Ontario Air Ambulance Service (OAAS). This terminal is designed to have automatic call set up and take down and to interface with the Public Service Telephone Network (PSTN) through a ground earth station hub controller. The terminal has integrated RF and microprocessor hardware which allows such functions as beam steering and automatic frequency control to be software controlled. The terminal uses a conformal patch array system to provide almost full azimuthal coverage. Antenna beam steering is executed without relying on aircraft supplied orientation information.

  2. Recent technical advances in general purpose mobile Satcom aviation terminals

    Science.gov (United States)

    Sydor, John T.

    1990-01-01

    A second general aviation amplitude companded single sideband (ACSSB) aeronautical terminal was developed for use with the Ontario Air Ambulance Service (OAAS). This terminal is designed to have automatic call set up and take down and to interface with the Public Service Telephone Network (PSTN) through a ground earth station hub controller. The terminal has integrated RF and microprocessor hardware which allows such functions as beam steering and automatic frequency control to be software controlled. The terminal uses a conformal patch array system to provide almost full azimuthal coverage. Antenna beam steering is executed without relying on aircraft supplied orientation information.

  3. Research on Predicting Drive Current of Shipborne Satcom Antenna

    OpenAIRE

    Kong Jinping; Xu Zhengfeng; Wu Botao

    2015-01-01

    Predicting the effect of antenna wind load on servo system precisely is meaningful to ensure the safety of satcom antenna on operation, which can avoid overload operation. In this paper, the computational fluid dynamics is used to proceed numerical computation on the pressure distribution of the reflector and torque of drive shaft under different wind speed, windward angle and angle of pitch of the antenna. The simulation model is built under MATLAB/Simulink simulation environment, and the dr...

  4. Research on Predicting Drive Current of Shipborne Satcom Antenna

    Directory of Open Access Journals (Sweden)

    Kong Jinping

    2015-01-01

    Full Text Available Predicting the effect of antenna wind load on servo system precisely is meaningful to ensure the safety of satcom antenna on operation, which can avoid overload operation. In this paper, the computational fluid dynamics is used to proceed numerical computation on the pressure distribution of the reflector and torque of drive shaft under different wind speed, windward angle and angle of pitch of the antenna. The simulation model is built under MATLAB/Simulink simulation environment, and the drive current of the antenna servo system is analyzed under wind load effect and ship swing. Then, a method of predicting drive current of antenna servo system according to the wind speed, wind direction and attitude of the antenna is concluded. And this method is verified by simulation at last.

  5. Wideband Global SATCOM (WGS)

    Science.gov (United States)

    2015-12-01

    SATCOM (WGS), previously reported as Wideband Gapfiller Satellites, is a constellation of the Department of Defense’s highest capacity communication...has two International Partnerships. In exchange for access to a portion of the WGS constellation , Australia is providing funds for WGS-6 while Canada...48 UNCLASSIFIED 6 Executive Summary Wideband Global SATCOM (WGS), previously reported as Wideband Gapfiller Satellites, is a constellation of the

  6. China Satcom: Innovating Satellite Communication

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    China Satellite Communications Group Corporation (China Satcom) is a state-owned large-sized key enterprise formally established on Dec. 19, 2001 according to the general deployment of the State Council on telecommunication system reform. Relying on its complete service system, China Satcom provides various users with specialized and high quality information communication service.

  7. SHF SATCOM Interference Study

    Science.gov (United States)

    1975-12-01

    58N 0.2 22.4 -205.4 1720 70N 0.4 22.6 -202.4 1722 82N 0 22.2 - NOTES: Aircraft at 26,000 feet, antenna had a simulated satellite orientation of +42...100 watts transmit power. With the airborne SHF SATCOM antenna in the typical or the simulated satellite orientation towards the MARS station, there...c’rtft. r-ntcnna in a 5-mulat’.d satellite orientation . Wien the aircratt arite.nna was depressed ia a -70 elevatiovi directly W~towofi the t toý crecte

  8. China Satcom Merged Into CASC

    Institute of Scientific and Technical Information of China (English)

    Wei Tong

    2009-01-01

    @@ China Satellite Communications Corporation (China Satcom) merged with China Aerospace Science and Technology Corporation (CASC) recently on the request under regrouping and structure readjustment by the State-owned Assets Supervision and Administration Commission of the State Council (SASAC).

  9. Satcom access in the Evolved Packet Core

    NARCIS (Netherlands)

    Cano Soveri, M.D.; Norp, A.H.J.; Popova, M.P.

    2011-01-01

    Satellite communications (Satcom) networks are increasingly integrating with terrestrial communications networks, namely Next Generation Networks (NGN). In the area of NGN the Evolved Packet Core (EPC) is a new network architecture that can support multiple access technologies. When Satcom is consid

  10. Satcom access in the evolved packet core

    NARCIS (Netherlands)

    Cano, M.D.; Norp, A.H.J.; Popova, M.P.

    2012-01-01

    Satellite communications (Satcom) networks are increasingly integrating with terrestrial communications networks, namely Next Generation Networks (NGN). In the area of NGN the Evolved Packet Core (EPC) is a new network architecture that can support multiple access technologies. When Satcom is consid

  11. Hybrid onboard and ground based digital channelizer beam-forming for SATCOM interference mitigation and protection

    Science.gov (United States)

    Xiong, Wenhao; Wang, Gang; Tian, Xin; Pham, Khanh; Blasch, Erik; Chen, Genshe

    2016-05-01

    In this work, we propose a novel beam-forming power allocation method for a satellite communication (SATCOM) multiple-input multiple-output (MIMO) system to mitigate the co-channel interference (CCI) as well as limiting the signal leakage to the adversary users. In SATCOM systems, the beam-forming technique is a conventional way of avoiding interference, controlling the antenna beams, and mitigating undesired signals. We propose to use an advanced beam-forming technique which considers the number of independent channels used and transmitting power deployed to reduce and mitigate the unintentional interference effect. With certain quality of service (QoS) for the SATCOM system, independent channels components will be selected. It is desired to use less and stronger channel components when possible. On the other hand, considering that SATCOM systems often face the problem that adversary receiver detects the signal, a proposed power allocation method can efficiently reduce the received power at the adversary receiver. To reduce the computational burden on the transponder in order to minimize the size, mass, power consumption and delay for the satellite, we apply a hybrid onboard and ground based beam-forming design to distribute the calculation between the transponder and ground terminals. Also the digital channelizer beam-forming (DCB) technique is employed to achieve dynamic spatial control.

  12. Towards structural integration of airborne Ku-band SatCom antenna

    NARCIS (Netherlands)

    Schippers, Harmen; Verpoorte, Jaco; Hulzinga, Adriaan; Roeloffzen, C.G.H.; Baggen, Rens

    2013-01-01

    The paper describes research towards a fully structurally integrated Ku-band SatCom antenna. This antenna covers the complete receive band for aeronautical earth stations and DVB-S broadcast in Ku band (10.7 - 12.75 GHz). The antenna front-end consists of 32 tiles where each tile has 8×8 Ku-band

  13. ULTRA HIGH FREQUENCY (UHF) SATELLITE COMMUNICATIONS (SATCOM) TEST FACILITY

    Data.gov (United States)

    Federal Laboratory Consortium — UHF SATCOM Program Description: JITC has a mission requirement to support the directives of Chairman of the Joint Chiefs of Staff Instruction (CJCSI 6251.01), which...

  14. Terminal Area ATM Research at NASA Ames

    Science.gov (United States)

    Tobias, Leonard

    1997-01-01

    The presentation will highlight the following: (1) A brief review of ATC research underway 15 years ago; (2) A summary of Terminal Area ATM Tool Development ongoing at NASA Ames; and (3) A projection of research activities 10-15 years from now.

  15. Research and development of prefabricated terminal cabinet

    Science.gov (United States)

    Jin, Huawei; Chen, Junjie; Zhou, Jie; Zhang, Yi; Geng, Yixiao; Huang, Nan; Yin, Yaohua

    2017-04-01

    At present, the terminal Cabinet used in the substation is mostly integral type, the terminal Cabinet adopts fixed wiring mode, the texture is mostly iron, and the few are stainless steel. Inside it, all kinds of air, cable and terminal block are fixed in the terminal Cabinet. Equipment replacement, and technical projects to promote, often need to transform the terminal Cabinet, this time, you need to remove the terminal Cabinet as a whole, the cable cable removed, while replacing the overall terminal block, often replace the terminal block, then the cable Installation, it will cause the terminal block, open space, shell, etc. can not be used twice, resulting in a great waste, while the replacement of power outages for a long time, construction workload, therefore, the team decided to develop a Prefabricated terminal Cabinet, the shell and the internal terminal blocks and empty open modular Prefabricated way, the replacement of the terminal Cabinet, you can easily replace the need to be part of the construction, rather than the terminal Cabinet as a whole construction, reduce power outages, Reduce the workload, saving labor costs, engineering costs.

  16. 40 CFR 26.1123 - Early termination of research.

    Science.gov (United States)

    2010-07-01

    ... SUBJECTS Basic Ethical Requirements for Third-Party Human Research for Pesticides Involving Intentional Exposure of Non-pregnant, Non-nursing Adults § 26.1123 Early termination of research. The Administrator may... 40 Protection of Environment 1 2010-07-01 2010-07-01 false Early termination of research....

  17. A satellite orbital testbed for SATCOM using mobile robots

    Science.gov (United States)

    Shen, Dan; Lu, Wenjie; Wang, Zhonghai; Jia, Bin; Wang, Gang; Wang, Tao; Chen, Genshe; Blasch, Erik; Pham, Khanh

    2016-05-01

    This paper develops and evaluates a satellite orbital testbed (SOT) for satellite communications (SATCOM). SOT can emulate the 3D satellite orbit using the omni-wheeled robots and a robotic arm. The 3D motion of satellite is partitioned into the movements in the equatorial plane and the up-down motions in the vertical plane. The former actions are emulated by omni-wheeled robots while the up-down motions are performed by a stepped-motor-controlled-ball along a rod (robotic arm), which is attached to the robot. The emulated satellite positions will go to the measure model, whose results will be used to perform multiple space object tracking. Then the tracking results will go to the maneuver detection and collision alert. The satellite maneuver commands will be translated to robots commands and robotic arm commands. In SATCOM, the effects of jamming depend on the range and angles of the positions of satellite transponder relative to the jamming satellite. We extend the SOT to include USRP transceivers. In the extended SOT, the relative ranges and angles are implemented using omni-wheeled robots and robotic arms.

  18. Research Progress and Development Trends of U.S.Military Satellite Communication Terminals%美军卫星通信终端的研究现状与发展趋势*

    Institute of Scientific and Technical Information of China (English)

    刘红军

    2013-01-01

      随着软件无线电技术的快速发展和实践应用,原本数量众多且种类多样的美军军用卫星通信终端也即将迎来更新换代和整合。在介绍美三军最新一代卫星通信终端研制现状的基础上,研究了美军新一代卫星通信终端发展的特点,分析了美军卫星通信终端的未来发展趋势,总结了从中获得的启示。%With the rapid development and practical application of software defined radio(SDR), U. S military Satellite Communication ( SATCOM) terminals are evolving to softwaredefined, modular, and multifunctional terminals . The next generation SATCOM terminal programs of U. S army, navy, and air force are introduced, the characteristics of these terminals are analyzed, the future trend of U. S military SATCOM terminals is summarized,and what we can learn from it is presented .

  19. Columbia River: Terminal fisheries research project. 1994 Annual report

    Energy Technology Data Exchange (ETDEWEB)

    Hirose, P.; Miller, M.; Hill, J.

    1996-12-01

    Columbia River terminal fisheries have been conducted in Youngs Bay, Oregon, since the early 1960`s targeting coho salmon produced at the state facility on the North Fork Klaskanine River. In 1977 the Clatsop County Economic Development Council`s (CEDC) Fisheries Project began augmenting the Oregon Department of Fish and Wildlife production efforts. Together ODFW and CEDC smolt releases totaled 5,060,000 coho and 411,300 spring chinook in 1993 with most of the releases from the net pen acclimation program. During 1980-82 fall commercial terminal fisheries were conducted adjacent to the mouth of Big Creek in Oregon. All past terminal fisheries were successful in harvesting surplus hatchery fish with minimal impact on nonlocal weak stocks. In 1993 the Northwest Power Planning Council recommended in its` Strategy for Salmon that terminal fishing sites be identified and developed. The Council called on the Bonneville Power Administration to fund a 10-year study to investigate the feasibility of creating and expanding terminal known stock fisheries in the Columbia River Basin. The findings of the initial year of the study are included in this report. The geographic area considered for study extends from Bonneville Dam to the river mouth. The initial year`s work is the beginning of a 2-year research stage to investigate potential sites, salmon stocks, and methodologies; a second 3-year stage will focus on expansion in Youngs Bay and experimental releases into sites with greatest potential; and a final 5-year phase establishing programs at full capacity at all acceptable sites. After ranking all possible sites using five harvest and five rearing criteria, four sites in Oregon (Tongue Point, Blind Slough, Clifton Channel and Wallace Slough) and three in Washington (Deep River, Steamboat Slough and Cathlamet Channel) were chosen for study.

  20. Lower Columbia River Terminal Fisheries Research Project : Final Environmental Assessment.

    Energy Technology Data Exchange (ETDEWEB)

    United States. Bonneville Power Administration.

    1995-04-01

    This notice announces BPA`S`s decision to fund the Oregon Department of Fish and Wildlife (ODFW), the Washington Department of Fish and Wildlife (WDFW), and the Clatsop Economic Development Committee for the Lower Columbia River Terminal Fisheries Research Project (Project). The Project will continue the testing of various species/stocks, rearing regimes, and harvest options for terminal fisheries, as a means to increase lower river sport and commercial harvest of hatchery fish, while providing both greater protection of weaker wild stocks and increasing the return of upriver salmon runs to potential Zone 6 Treaty fisheries. The Project involves relocating hatchery smolts to new, additional pen locations in three bays/sloughs in the lower Columbia River along both the Oregon and Washington sides. The sites are Blind Slough and Tongue Point in Clatsop County, Oregon, and Grays Bay/Deep River, Wahkiakum County, Washington. The smolts will be acclimated for various lengths of time in the net pens and released from these sites. The Project will expand upon an existing terminal fisheries project in Youngs Bay, Oregon. The Project may be expanded to other sites in the future, depending on the results of this initial expansion. BPA`S has determined the project is not a major Federal action significantly affecting the quality of the human environment, within the meaning of the National Environmental Policy Act (NEPA) of 1969. Therefore, the preparation of an environmental impact statement is not required, and BPA`S is issuing this FONSI.

  1. B-2 Extremely High Frequency SATCOM and Computer Increment 1 (B-2 EHF Inc 1)

    Science.gov (United States)

    2015-12-01

    Selected Acquisition Report (SAR) RCS: DD-A&T(Q&A)823-224 B-2 Extremely High Frequency SATCOM and Computer Increment 1 (B-2 EHF Inc 1) As of FY...10 Track to Budget 11 Cost and Funding 13 Low Rate Initial Production 19 Foreign Military Sales 20 Nuclear Costs 20 Unit Cost...Document CLIN - Contract Line Item Number CPD - Capability Production Document CY - Calendar Year DAB - Defense Acquisition Board DAE - Defense

  2. Columbia River : Terminal Fisheries Research Report : Annual Report 1994.

    Energy Technology Data Exchange (ETDEWEB)

    Hirose, Paul; Miller, Marc; Hill, Jim

    1996-12-01

    In 1993 the Northwest Power Planning Council recommended in its Strategy for Salmon that terminal fishing sites be identified and developed. The Council called on the Bonneville Power Administration to fund a 10-year study to investigate the feasibility of creating and expanding terminal known stock fisheries in the Columbia River Basin.

  3. Leveraging an SNMP Agent in Terminal Equipment for Network Monitoring of U.S. Navy SATCOM

    Science.gov (United States)

    2011-09-01

    Network Topology TWT Traveling-wave Tube TX Transmitter UCD Uplink Channel Descriptor UDP User Datagram Protocol UFO UHF Follow-On UHF Ultra High...through DSCS III, UFO , and Milstar” (Martin, n.d.a).  “Capabilities have grown dramatically with the development of satellite and electronics...Communication Systems (DSCS) II and III and the Global Broadcast Service (GBS) payload on the UHF Follow-On ( UFO ) satellite  In 1971, the DSCS II

  4. 34 CFR 97.123 - Early termination of research support: Evaluation of applications and proposals.

    Science.gov (United States)

    2010-07-01

    ... 34 Education 1 2010-07-01 2010-07-01 false Early termination of research support: Evaluation of applications and proposals. 97.123 Section 97.123 Education Office of the Secretary, Department of Education... Protection of Human Research Subjects) § 97.123 Early termination of research support: Evaluation...

  5. 45 CFR 46.123 - Early termination of research support: Evaluation of applications and proposals.

    Science.gov (United States)

    2010-10-01

    ... Research Subjects § 46.123 Early termination of research support: Evaluation of applications and proposals... 45 Public Welfare 1 2010-10-01 2010-10-01 false Early termination of research support: Evaluation of applications and proposals. 46.123 Section 46.123 Public Welfare DEPARTMENT OF HEALTH AND...

  6. 40 CFR 26.123 - Early termination of research support: Evaluation of applications and proposals.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 1 2010-07-01 2010-07-01 false Early termination of research support: Evaluation of applications and proposals. 26.123 Section 26.123 Protection of Environment ENVIRONMENTAL... Research Conducted or Supported by EPA § 26.123 Early termination of research support: Evaluation...

  7. Research on information security system of waste terminal disposal process

    Science.gov (United States)

    Zhou, Chao; Wang, Ziying; Guo, Jing; Guo, Yajuan; Huang, Wei

    2017-05-01

    Informatization has penetrated the whole process of production and operation of electric power enterprises. It not only improves the level of lean management and quality service, but also faces severe security risks. The internal network terminal is the outermost layer and the most vulnerable node of the inner network boundary. It has the characteristics of wide distribution, long depth and large quantity. The user and operation and maintenance personnel technical level and security awareness is uneven, which led to the internal network terminal is the weakest link in information security. Through the implementation of security of management, technology and physics, we should establish an internal network terminal security protection system, so as to fully protect the internal network terminal information security.

  8. 16 CFR 1028.123 - Early termination of research support: Evaluation of applications and proposals.

    Science.gov (United States)

    2010-01-01

    ... 16 Commercial Practices 2 2010-01-01 2010-01-01 false Early termination of research support: Evaluation of applications and proposals. 1028.123 Section 1028.123 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION GENERAL PROTECTION OF HUMAN SUBJECTS § 1028.123 Early termination of research...

  9. 7 CFR 1c.123 - Early termination of research support: Evaluation of applications and proposals.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 1 2010-01-01 2010-01-01 false Early termination of research support: Evaluation of applications and proposals. 1c.123 Section 1c.123 Agriculture Office of the Secretary of Agriculture PROTECTION OF HUMAN SUBJECTS § 1c.123 Early termination of research support: Evaluation of applications...

  10. 10 CFR 745.123 - Early termination of research support: Evaluation of applications and proposals.

    Science.gov (United States)

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false Early termination of research support: Evaluation of applications and proposals. 745.123 Section 745.123 Energy DEPARTMENT OF ENERGY PROTECTION OF HUMAN SUBJECTS § 745.123 Early termination of research support: Evaluation of applications and proposals. (a)...

  11. 28 CFR 46.123 - Early termination of research support: Evaluation of applications and proposals.

    Science.gov (United States)

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Early termination of research support: Evaluation of applications and proposals. 46.123 Section 46.123 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) PROTECTION OF HUMAN SUBJECTS § 46.123 Early termination of research support: Evaluation...

  12. 15 CFR 27.123 - Early termination of research support: Evaluation of applications and proposals.

    Science.gov (United States)

    2010-01-01

    ... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Early termination of research support: Evaluation of applications and proposals. 27.123 Section 27.123 Commerce and Foreign Trade Office of the Secretary of Commerce PROTECTION OF HUMAN SUBJECTS § 27.123 Early termination of research...

  13. 22 CFR 225.123 - Early termination of research support: Evaluation of applications and proposals.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Early termination of research support: Evaluation of applications and proposals. 225.123 Section 225.123 Foreign Relations AGENCY FOR INTERNATIONAL DEVELOPMENT PROTECTION OF HUMAN SUBJECTS § 225.123 Early termination of research support: Evaluation...

  14. 32 CFR 219.123 - Early termination of research support: Evaluation of applications and proposals.

    Science.gov (United States)

    2010-07-01

    ....123 Early termination of research support: Evaluation of applications and proposals. (a) The... 32 National Defense 2 2010-07-01 2010-07-01 false Early termination of research support: Evaluation of applications and proposals. 219.123 Section 219.123 National Defense Department of...

  15. 49 CFR 11.123 - Early termination of research support: Evaluation of applications and proposals.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 1 2010-10-01 2010-10-01 false Early termination of research support: Evaluation of applications and proposals. 11.123 Section 11.123 Transportation Office of the Secretary of Transportation PROTECTION OF HUMAN SUBJECTS § 11.123 Early termination of research support: Evaluation...

  16. Research on 3G Terminal-Based Agricultural Information Service

    OpenAIRE

    Xie, Nengfu; Zhang, Xuefu

    2013-01-01

    International audience; In order to solve the farmer’s agricultural production information’ acquisition problems with a 3G terminal, a 3G-terminial agricultural information service system method is proposed in the paper. With the advent of 3G and WLAN technologies, the rural and urban areas in which 3G coverage is complemented by WLAN deployments is becoming available. The agricultural information services limited by network bandwidth and geography will be changed completely. In the paper, we...

  17. 14 CFR 1230.123 - Early termination of research support: Evaluation of applications and proposals.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 5 2010-01-01 2010-01-01 false Early termination of research support: Evaluation of applications and proposals. 1230.123 Section 1230.123 Aeronautics and Space NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PROTECTION OF HUMAN SUBJECTS § 1230.123 Early termination of...

  18. A research agenda for moving early medical pregnancy termination over the counter.

    Science.gov (United States)

    Kapp, Nathalie; Grossman, Daniel; Jackson, Emily; Castleman, Laura; Brahmi, Dalia

    2017-03-19

    Given the overall safety profile and increasing availability of medical pregnancy termination drugs, we asked: would the mifepristone-misoprostol regimen for medical termination at ≤10 weeks gestation meet U.S. FDA regulatory criteria for over-the-counter (OTC) approval, and if not, what are the present research gaps? We conducted a literature review of consumer behaviors necessary for a successful OTC application for medical termination ≤10 weeks and identified crucial research gaps. If we were to embark on a development program for OTC or more generally, self-use of medical termination, the critical elements missing are the label comprehension, self -selection and actual use studies. This article is protected by copyright. All rights reserved.

  19. 77 FR 13376 - Notice of License Termination for the University of Arizona Research Reactor, License No. R-52

    Science.gov (United States)

    2012-03-06

    ... COMMISSION Notice of License Termination for the University of Arizona Research Reactor, License No. R-52 The... No. R-52, for the University of Arizona Research Reactor (UARR). The NRC has terminated the license... released for unrestricted use. Therefore, Facility Operating License No. R-52 is terminated. For...

  20. 45 CFR 690.123 - Early termination of research support: Evaluation of applications and proposals.

    Science.gov (United States)

    2010-10-01

    ... of research support: Evaluation of applications and proposals. (a) The department or agency head may... 45 Public Welfare 3 2010-10-01 2010-10-01 false Early termination of research support: Evaluation of applications and proposals. 690.123 Section 690.123 Public Welfare Regulations Relating to...

  1. A Wideband Satcom Based Avionics Network with CDMA Uplink and TDM Downlink

    Science.gov (United States)

    Agrawal, D.; Johnson, B. S.; Madhow, U.; Ramchandran, K.; Chun, K. S.

    2000-01-01

    The purpose of this paper is to describe some key technical ideas behind our vision of a future satcom based digital communication network for avionics applications The key features of our design are as follows: (a) Packetized transmission to permit efficient use of system resources for multimedia traffic; (b) A time division multiplexed (TDM) satellite downlink whose physical layer is designed to operate the satellite link at maximum power efficiency. We show how powerful turbo codes (invented originally for linear modulation) can be used with nonlinear constant envelope modulation, thus permitting the satellite amplifier to operate in a power efficient nonlinear regime; (c) A code division multiple access (CDMA) satellite uplink, which permits efficient access to the satellite from multiple asynchronous users. Closed loop power control is difficult for bursty packetized traffic, especially given the large round trip delay to the satellite. We show how adaptive interference suppression techniques can be used to deal with the ensuing near-far problem; (d) Joint source-channel coding techniques are required both at the physical and the data transport layer to optimize the end-to-end performance. We describe a novel approach to multiple description image encoding at the data transport layer in this paper.

  2. Termination of Degree and Research Programmes: An Exercise in University Cooperation.

    Science.gov (United States)

    Acherman, Hans A.

    1984-01-01

    The Netherlands' use of an ad hoc interinstitutional committee of university board members during a period of retrenchment is described which resulted in a plan to close a number of university departments and to terminate many small and not very successful research programs. (MSE)

  3. The Design of Compass/BeiDou Navigation Satellite Terminal for Migrant Bird Research

    Directory of Open Access Journals (Sweden)

    Yaohui Li

    2014-01-01

    Full Text Available A terminal of Compass Navigation Satellite System (CNSS, which can not only support BeiDou-1 and BeiDou-2 but also support Global Positioning System (GPS, is designed to research the activities of the migrant birds, with our novel design of a multiband antenna. By a high-density integration, this terminal is designed with a compact size and light weight. When the terminal is assembled to a whooper swan, its flying trace is recorded by the CNSS, which is in agreement with that of GPS. The flying route map based on the CNSS is useful to check the situation and habit of the migrant bird, which is important for animal protection and bird flu outbreak prediction.

  4. SATCOM antenna siting study on a P-3C using the NEC-BSC V3.1

    Science.gov (United States)

    Bensman, D.; Marhefka, R. J.

    1990-01-01

    The location of a UHF SATCOM antenna on a P-3C aircraft is studied using the NEC-Basic Scattering Code V3.1 (NEC-BSC3). The NEC-BSC3 is a computer code based on the uniform theory of diffraction. The code is first validated for this application using scale model measurements. In general, the comparisons are good except in 10 degree regions near the nose and tail of the aircraft. Patterns for various antenna locations are analyzed to achieve a prescripted performance.

  5. Evaluation of research and development for terminal isolation of nuclear wastes

    Energy Technology Data Exchange (ETDEWEB)

    Burton, B.W.

    1982-08-01

    The National Waste Terminal Storage program is responsible for identifying and constructing a geologic repository for spent reactor fuel, high-level waste, and transuranic waste. Extensive research and development work is in progress in the areas of site selection, waste treatment and waste form development, model development and validation, and long-term repository performance assessment. Many potential technologies are under investigation, but specific technologies cannot be identified until a repository site is selected. It is too early in the program to assess the adequacy of environmental control technologies for deep geologic disposal.

  6. Research on the Behavior Characteristics of Pedestrian Crowd Weaving Flow in Transport Terminal

    Directory of Open Access Journals (Sweden)

    Liya Yao

    2012-01-01

    Full Text Available Due to the poor transfer organization in urban public transport terminal, pedestrian crowd are often forced to weaving in their transfer flow lines. Frequent weaving behaviors not only decrease passengers’ transfer comfort, but may also trigger serious crowd disaster such as trampling. In order to get accurate understanding of the weaving features of pedestrian crowd and analyze the relevant evolution law, researches have been conducted on the basis of field investigation. First, the typical weaving phenomenon were defined and classified, and a microscopic parameters system of pedestrian crowd weaving flow was constructed. The detection and quantification methods of multiple indicator parameters were also given. Then, correlation between different behavioral parameters was analyzed based on the survey data of weaving pedestrian crowd on the stairs of DongZhiMen (DZM hub. The basic characteristics and evolution law of the weaving behaviors were then discussed, and conclusions were drawn.

  7. 移动终端群智感知研究%Research on Mobile Terminal Crowdsourcing

    Institute of Scientific and Technical Information of China (English)

    黄涵霞; 丁强; 李莉; 娄梦茜; 孙知信

    2014-01-01

    Under the circumstance that smartphones integrate many sensors,the research on mobile crowdsourcing are becoming important and popular in recent years. Through the way of analyzing the data collected from the mobile terminal,mobile crowdsourcing can sense user's situation intelligently and provide personalized service. It summarizes the latest researches home and abroad,and proposes a general model for the mobile terminal crowdsourcing. Also introduce the state of the art in mobile crowdsourcing in four aspects,namely the data processing,motivation mechanism,mobile crowdsourcing applications and platforms supporting crowdsoucing. The latest data processing techniques and crowdsourcing applications are proposed and a new mechanism is put forward.%随着移动终端集成了越来越多的内置传感器,移动群智感知成为近几年来的研究热点。通过对移动终端传感器感知数据的收集分析处理,用户所处情境便能被识别,还原用户所处场景,为用户提供个性化服务。文中通过归纳国内外的最新研究成果,提出了移动终端群智感知模型,并从数据处理、激励机制和群智感知应用、群智感知平台等几个方面具体归纳概括了国内外的研究趋势。文中归纳了最新的数据处理技术和群智感知应用场景,并提出了竞争和协作相辅相成的激励模式。

  8. Research on DTX Technology and Power Consumption Performance of Mobile Communication Terminal

    Directory of Open Access Journals (Sweden)

    Xie Shui Zhen

    2016-01-01

    Full Text Available In order to reduce the power consumption of GSM and TD-SCDMA mobile communication system terminal, the paper starts with DTX (Discontinuous Transmission technology of GSM and TD-SCDMA systems, offers a detailed analysis of the DTX’s function in optimizing power consumption of GSM and TDSCDMA mobile communication system terminal and reducing system interference, and verifies DTX’s positive role in reducing the power consumption of the mobile terminal by experiment.

  9. A critical review of theories to explain violent relationship termination: implications for research and intervention.

    Science.gov (United States)

    Rhatigan, Deborah L; Street, Amy E; Axsom, Danny K

    2006-05-01

    The following review represents an update and extension to an influential article (see [Strube, M.J. (1988). The decision to leave an abusive relationship: Empirical evidence and theoretical issues. Psychological Bulletin, 104, 236-250.]), which evaluated empirical research and suggested potential theories to explain victimized women's decisions to terminate violent relationships. In contrast to the original review, this paper provides information on the importance of and means by which theory should be evaluated and critically determines which theoretical approach(es) might be most productive based on theoretical and atheoretical evidence. In addition, this paper discusses strengths and weaknesses of each approach, in light of certain criteria deemed to be important for the evaluation of theory (e.g., comprehensiveness, parsimony, etc.). Furthermore, this paper discusses current controversies regarding these issues, ramifications of differing theoretical approaches, and their potential impact on the field. Based on this analysis, it is determined that general approaches (e.g., reasoned action/planned behavior, investment model) may be better for understanding this complex and multifaceted decision. Suggestions for future theoretical and intervention research are discussed.

  10. Seaside operations in container terminals : literature overview, trends, and research directions

    NARCIS (Netherlands)

    Carlo, Hector J.; Vis, Iris F. A.; Roodbergen, Kees Jan

    2015-01-01

    Seaside operations are considered the bottleneck operation in most container terminals around the world. This paper presents an in-depth updated overview of the seaside operations at container terminals and highlights current trends and developments. We review and classify scientific journal papers

  11. Sea Container Terminals : New Technologies, OR models, and Emerging Research Areas

    NARCIS (Netherlands)

    A.H. Gharehgozli (Amir); D. Roy (Debjit); M.B.M. de Koster (René)

    2014-01-01

    textabstractDue to a rapid growth in world trade and a huge increase in containerized goods, sea container terminals play a vital role in globe-spanning supply chains. Container terminals should be able to handle large ships, with large call sizes within the shortest time possible, and at competitiv

  12. Inventory of Federal energy-related environment and safety research for FY 1977. Volume III. Interactive terminal users guide

    Energy Technology Data Exchange (ETDEWEB)

    Shriner, C.R.; Peck, L.J.; Miller, C.E.

    1978-07-01

    This users guide was prepared to provide interested persons access to, via computer terminals, federally funded energy-related environment and safety research projects for FY 1977. Although this information is also available in hardbound volumes, this on-line searching capability is expected to reduce the time required to answer ad hoc questions and, at the same time, produce meaningful reports.

  13. Transport operations in container terminals : Literature overview, trends, research directions and classification scheme

    NARCIS (Netherlands)

    Carlo, Hector J.; Vis, Iris F. A.; Roodbergen, Kees Jan

    2014-01-01

    Internal transport operations connect the seaside, yard side, and landside processes at container terminals. This paper presents an in-depth overview of transport operations and the material handling equipment used, highlights current industry trends and developments, and proposes a new classificati

  14. Storage yard operations in container terminals : Literature overview, trends, and research directions

    NARCIS (Netherlands)

    Carlo, Hector J.; Vis, Iris F. A.; Roodbergen, Kees Jan

    2014-01-01

    Inbound and outbound containers are temporarily stored in the storage yard at container terminals. A combination of container demand increase and storage yard capacity scarcity create complex operational challenges for storage yard managers. This paper presents an in-depth overview of storage yard o

  15. Strategy research on new urban space development and new deepwater terminal in Hengsha

    Institute of Scientific and Technical Information of China (English)

    Bao Qifan; Ren Guohua

    2014-01-01

    From a strategic perspective,the paper presents a forward-looking thinking supported by interdisci-plinary of modern logistics,estuary and coast,environment and ecology,economic management and mathe-matical statistics. It leads to a reasonable solution to space expansion by reclamation. Construction of new deep-water terminal is the best usage of land resources and can strengthen the status of Shanghai as an international shipping center,thus support the preparation and strategic decision of future urban development of Shanghai.

  16. Research and design of smart grid monitoring control via terminal based on iOS system

    Science.gov (United States)

    Fu, Wei; Gong, Li; Chen, Heli; Pan, Guangji

    2017-06-01

    Aiming at a series of problems existing in current smart grid monitoring Control Terminal, such as high costs, poor portability, simple monitoring system, poor software extensions, low system reliability when transmitting information, single man-machine interface, poor security, etc., smart grid remote monitoring system based on the iOS system has been designed. The system interacts with smart grid server so that it can acquire grid data through WiFi/3G/4G networks, and monitor each grid line running status, as well as power plant equipment operating conditions. When it occurs an exception in the power plant, incident information can be sent to the user iOS terminal equipment timely, which will provide troubleshooting information to help the grid staff to make the right decisions in a timely manner, to avoid further accidents. Field tests have shown the system realizes the integrated grid monitoring functions, low maintenance cost, friendly interface, high security and reliability, and it possesses certain applicable value.

  17. Inventory of Federal Energy-Related Environment and Safety Research for FY 1978. Volume III, interactive terminal users guide

    Energy Technology Data Exchange (ETDEWEB)

    Miller, C. E.; Barker, Janice F.

    1979-12-01

    This users' guide was prepared to provide interested persons access to, via computer terminals, federally funded energy-related environmental and safety research projects for FY 1978. Although this information is also available in hardbound volumes, this on-line searching capability is expected to reduce the time required to answer ad hoc questions and, at the same time, produce meaningful reports. The data contained in this data base are not exhaustive and represent research reported by the following agencies: Department of Agriculture, Department of Commerce, Department of Defense, Department of Energy, Department of Health, Education, and Welfare, Department of the Interior, Department of Transportation, Federal Energy Administration, National Aeronautics and Space Administration, National Science Foundation, Nuclear Regulatory Commission, Tennessee Valley Authority, U.S. Coast Guard, and the U.S. Environmental Protection Agency.

  18. 76 FR 14278 - U.S. Honey Producer Research, Promotion, and Consumer Information Order; Termination of...

    Science.gov (United States)

    2011-03-16

    ... Agricultural Marketing Service 7 CFR Part 1245 RIN 0581-AC78 U.S. Honey Producer Research, Promotion, and... INFORMATION CONTACT: Kimberly Coy, Marketing Specialist, Research and Promotion Branch, Fruit and Vegetable..., Marketing agreements, Promotion, Reporting and recordkeeping requirements. Accordingly, under the...

  19. 38 CFR 16.123 - Early termination of research support: Evaluation of applications and proposals.

    Science.gov (United States)

    2010-07-01

    ... research support: Evaluation of applications and proposals. 16.123 Section 16.123 Pensions, Bonuses, and... research support: Evaluation of applications and proposals. (a) The department or agency head may require... approving applications or proposals covered by this policy the department or agency head may take...

  20. A semiparametric joint model for terminal trend of quality of life and survival in palliative care research.

    Science.gov (United States)

    Li, Zhigang; Frost, H R; Tosteson, Tor D; Zhao, Lihui; Liu, Lei; Lyons, Kathleen; Chen, Huaihou; Cole, Bernard; Currow, David; Bakitas, Marie

    2017-08-17

    Palliative medicine is an interdisciplinary specialty focusing on improving quality of life (QOL) for patients with serious illness and their families. Palliative care programs are available or under development at over 80% of large US hospitals (300+ beds). Palliative care clinical trials present unique analytic challenges relative to evaluating the palliative care treatment efficacy which is to improve patients' diminishing QOL as disease progresses towards end of life (EOL). A unique feature of palliative care clinical trials is that patients will experience decreasing QOL during the trial despite potentially beneficial treatment. Often longitudinal QOL and survival data are highly correlated which, in the face of censoring, makes it challenging to properly analyze and interpret terminal QOL trend. To address these issues, we propose a novel semiparametric statistical approach to jointly model the terminal trend of QOL and survival data. There are two sub-models in our approach: a semiparametric mixed effects model for longitudinal QOL and a Cox model for survival. We use regression splines method to estimate the nonparametric curves and AIC to select knots. We assess the model performance through simulation to establish a novel modeling approach that could be used in future palliative care research trials. Application of our approach in a recently completed palliative care clinical trial is also presented. Copyright © 2017 John Wiley & Sons, Ltd.

  1. Interface of the transport systems research vehicle monochrome display system to the digital autonomous terminal access communication data bus

    Science.gov (United States)

    Easley, W. C.; Tanguy, J. S.

    1986-01-01

    An upgrade of the transport systems research vehicle (TSRV) experimental flight system retained the original monochrome display system. The original host computer was replaced with a Norden 11/70, a new digital autonomous terminal access communication (DATAC) data bus was installed for data transfer between display system and host, while a new data interface method was required. The new display data interface uses four split phase bipolar (SPBP) serial busses. The DATAC bus uses a shared interface ram (SIR) for intermediate storage of its data transfer. A display interface unit (DIU) was designed and configured to read from and write to the SIR to properly convert the data from parallel to SPBP serial and vice versa. It is found that separation of data for use by each SPBP bus and synchronization of data tranfer throughout the entire experimental flight system are major problems which require solution in DIU design. The techniques used to accomplish these new data interface requirements are described.

  2. Termination Documentation

    Science.gov (United States)

    Duncan, Mike; Hill, Jillian

    2014-01-01

    In this study, we examined 11 workplaces to determine how they handle termination documentation, an empirically unexplored area in technical communication and rhetoric. We found that the use of termination documentation is context dependent while following a basic pattern of infraction, investigation, intervention, and termination. Furthermore,…

  3. Research into the Effect of Supercapacitor Terminal Voltage on Regenerative Suspension Energy-Regeneration and Dynamic Performance

    Directory of Open Access Journals (Sweden)

    Ruochen Wang

    2017-01-01

    Full Text Available To study the effect of supercapacitor initial terminal voltage on the regenerative and semiactive suspension energy-regeneration and dynamic performance, firstly, the relationship between supercapacitor terminal voltage and linear motor electromagnetic damping force and that between supercapacitor terminal voltage and recycled energy by the supercapacitor in one single switching period were both analyzed. The result shows that the linear motor electromagnetic damping force is irrelevant to the supercapacitor terminal voltage, and the recycled energy by the supercapacitor reaches the maximum when initial terminal voltage of the supercapacitor equals output terminal voltage of the linear motor. Then, performances of system dynamics and energy-regeneration were studied as the supercapacitor initial terminal voltage varied in situations of B level and C level road. The result showed that recycled energy by the supercapacitor increased at first and then decreased while the dynamic performance had no obvious change. On the basis of previous study, a mode-switching control strategy of supercapacitor for the regenerative and semiactive suspension system was proposed, and the mode-switching rule was built. According to simulation and experiment results, the system energy-regeneration efficiency can be increased by utilizing the control strategy without influencing suspension dynamic performance, which is highly valuable to practical engineering.

  4. Reliability Block Diagram (RBD) Analysis of NASA Dryden Flight Research Center (DFRC) Flight Termination System and Power Supply

    Science.gov (United States)

    Morehouse, Dennis V.

    2006-01-01

    In order to perform public risk analyses for vehicles containing Flight Termination Systems (FTS), it is necessary for the analyst to know the reliability of each of the components of the FTS. These systems are typically divided into two segments; a transmitter system and associated equipment, typically in a ground station or on a support aircraft, and a receiver system and associated equipment on the target vehicle. This analysis attempts to analyze the reliability of the NASA DFRC flight termination system ground transmitter segment for use in the larger risk analysis and to compare the results against two established Department of Defense availability standards for such equipment.

  5. Effects of Scale Transformation and Test Termination Rule on the Precision of Ability Estimates in CAT. ACT Research Report Series.

    Science.gov (United States)

    Yi, Qing; Wang, Tianyou; Ban, Jae-Chun

    Error indices (bias, standard error of estimation, and root mean square error) obtained on different scales of measurement under different test termination rules in a computerized adaptive test (CAT) context were examined. Four ability estimation methods were studied: (1) maximum likelihood estimation (MLE); (2) weighted likelihood estimation…

  6. Research on the Best Routing Algorithm of Terminal Distribution Based on the Random Factor of Road Hustling Degree

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Dijkstra algorithm is a basic algorithm to analyze the vehicle routing problem (VRP) in the terminal distribution of logistics center. According to the actual client demands of service speed and quality, the conceptions of economical distance of delivery and the best routing algorithm were given on the base of the Dijkstra algorithm with consideration of a coefficient of the road hustle degree. Economical distance of delivery is the shortest physical distance between two customers. It is the value of goods delivery in shortest distance when concerning factors such as the road length, the hustle degree, the driveway quantity, and the type of the road. The improved algorithm is being used in the development and application of a distribution path information system in the terminal distribution of logistics center. The simulation and practical case prove that the algorithm is effective and reasonable.

  7. NASA/DoD Aerospace Knowledge Diffusion Research Project. Report Number 21. U.S. Aerospace Industry Librarians and Technical Information Specialists as Information Intermediaries: Results of the Phase 2 Survey

    Science.gov (United States)

    1994-02-01

    Merill. D. W. Stevenson 1976 McClure, C. R. "The Federal Technical Report Literature: Research Needs and 1988 Issues." Government Information Quarterly . 5... Information Quarterly 8(2): 219-233. R. 0. Barclay 1991 Pinelli, T. E., "Aerospace Knowledge Diffusion Research." World Aerospace J. M. Kennedy, Technology 󈨟...Sciences; AKA the SATCOM 1969 Report. Pinelli, T. E., "The NASA/DoD Aerospace Knowledge Diffusion Research J. M. Kennedy, and Project." Government

  8. War Termination: A Selected Bibliography

    Science.gov (United States)

    2010-10-01

    Peace Research 33, no. 4 (November 1996): 491-496. JSTOR Phinney, Catherine. "Enhancing Conflict Termination through Problem Solving...96." Journal of Peace Research 34, no. 3 (August 1997): 339-358. JSTOR Bibliographies Bibliography Branch, comp. Conflict Termination

  9. Research on High Pressure Gas Injection As a Method of Fueling, Disruption Mitigation and Plasma Termination for Future Tokamak Reactors

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    High-pressure gas injection has proved to be an effective disruption mitigation technique in DⅢ-D tokamak experiments. If the method can be applied in future tokamak reactors not only for disruption mitigation but also for plasma termination and fueling, it will have an attractive advantage over the pellet and liquid injection from the viewpoint of economy and engineering design. In order to investigate the feasibility of this option, a study has been carried out with relevant parameters for conveying tubes of different geometrical sizes and for different gases.These parameters include pressure drop, lagger time after the valve's opening, gas diffusion in an ultra-high vacuum condition, and particle number contour.

  10. Terminal structure

    Science.gov (United States)

    Schmidt, Frank; Allais, Arnaud; Mirebeau, Pierre; Ganhungu, Francois; Lallouet, Nicolas

    2009-10-20

    A terminal structure (2) for a superconducting cable (1) is described. It consists of a conductor (2a) and an insulator (2b) that surrounds the conductor (2a), wherein the superconducting cable (1) has a core with a superconducting conductor (5) and a layer of insulation that surrounds the conductor (5), and wherein the core is arranged in such a way that it can move longitudinally in a cryostat. The conductor (2a) of the terminal structure (2) is electrically connected with the superconducting conductor (5) or with a normal conductor (6) that is connected with the superconducting conductor (5) by means of a tubular part (7) made of an electrically conductive material, wherein the superconducting conductor (5) or the normal conductor (6) can slide in the part (7) in the direction of the superconductor.

  11. Termination unit

    Energy Technology Data Exchange (ETDEWEB)

    Traeholt, Chresten; Willen, Dag; Roden, Mark; Tolbert, Jerry C.; Lindsay, David; Fisher, Paul W.; Nielsen, Carsten Thidemann

    2016-05-03

    Cable end section comprises end-parts of N electrical phases/neutral, and a thermally-insulation envelope comprising cooling fluid. The end-parts each comprises a conductor and are arranged with phase 1 innermost, N outermost surrounded by the neutral, electrical insulation being between phases and N and neutral. The end-parts comprise contacting surfaces located sequentially along the longitudinal extension of the end-section. A termination unit has an insulating envelope connected to a cryostat, special parts at both ends comprising an adapter piece at the cable interface and a closing end-piece terminating the envelope in the end-section. The special parts houses an inlet and/or outlet for cooling fluid. The space between an inner wall of the envelope and a central opening of the cable is filled with cooling fluid. The special part at the end connecting to the cryostat houses an inlet or outlet, splitting cooling flow into cable annular flow and termination annular flow.

  12. Making Wireless Terminals Simpler

    DEFF Research Database (Denmark)

    Christensen, Søren Skovgaard; Popovski, Petar; De Carvalho, Elisabeth

    2005-01-01

    The exponential growth of user demands and the limitations of 3G systems have brought researchers and industry to propose solutions for the next generation. Among the requirements are higher bit rates and cheaper deployment. In this paper we focus on a terminal complexity problem related to chann...

  13. 快递配送终端优化研究%Research on Express Distribution Terminal Optimization

    Institute of Scientific and Technical Information of China (English)

    薛开源; 蒋惠西; 顾传进; 黄玲玉; 黄宝娟; 覃运梅

    2016-01-01

    电子商务环境下,如何解决快递配送速度问题至关重要,基于现阶段的配送状况和快递“最后一公里”的问题,文中以快递机使用成本、车辆配送成本以及乘客取件成本最小为目标,构建了快递机布局选址及配送路径的数学模型,采用遗传算法对模型进行求解,并在模型中设置有限的约束条件从而保证了算法的收敛性。通过实例验证了模型和求解算法的正确性,有效解决了配送终端优化问题。%Under the electronic commerce environment, how to solve the problem of express delivery speed is vital, based on the current distribution situation and the problem of "the last kilometer" of express, the model about the express machine layout and the distribution routing is built, which aim to minimum the using express machine cost, vehicle distribution cost and passengers pick-up the parcels cost. Then the genetic algorithm is adopted to solve this model, and the limited constraint conditions are set up in the model to guarantee the convergence of the algorithm. Through the example, the correctness of the model and algorithm is verified, which can solve the distribution terminal optimization problem effectively.

  14. Terminal ballistics

    CERN Document Server

    Rosenberg, Zvi

    2016-01-01

    This book comprehensively discusses essential aspects of terminal ballistics, combining experimental data, numerical simulations and analytical modeling. Employing a unique approach to numerical simulations as a measure of sensitivity for the major physical parameters, the new edition also includes the following features: new figures to better illustrate the problems discussed; improved explanations for the equation of state of a solid and for the cavity expansion process; new data concerning the Kolsky bar test; and a discussion of analytical modeling for the hole diameter in a thin metallic plate impacted by a shaped charge jet. The section on thick concrete targets penetrated by rigid projectiles has now been expanded to include the latest findings, and two new sections have been added: one on a novel approach to the perforation of thin concrete slabs, and one on testing the failure of thin metallic plates using a hydrodynamic ram.

  15. Using ATM over SATCOM links

    Science.gov (United States)

    Comparetto, Gary M.

    1995-01-01

    The Asynchronous Transfer Mode (ATM) protocol is studied from the standpoint of determining what limitations, if any, exist in using it over satellite links. It is concluded that, while there is nothing intrinsic about ATM that would generally preclude its use over satellite links, there are, however, several intrinsic characteristics of satellite links, as well as some satellite system configuration-specific issues, that must be taken into account.

  16. Research of Video Phone Terminal Based on Trimedia Platform%基于Trimedia平台的可视电话终端研究

    Institute of Scientific and Technical Information of China (English)

    赵海涛; 蔡万景

    2009-01-01

    This paper introduces the H.324 criterion established by ITU-T and the Trimedia phtform manufactured by Philips for multi-media application, researchs a blue print optimizing H.263 based on TM1300 chipsets and the controling arithmetic of video coding,and designs a video phone terminal system based on a Trimedia phtform.%介绍了ITU-T制订的H.324框架标准和Philips公司新近推出的针对多媒体应用的Tfimedia开发平台,研究了基于TM1300芯片的H.263优化方法和视频编码中的码率控制算法,设计实现了基于Trimedia平台的可视电话终端系统.

  17. A Functional Description of a Digital Flight Test System for Navigation and Guidance Research in the Terminal Area

    Science.gov (United States)

    Hegarty, D. M.

    1974-01-01

    A guidance, navigation, and control system, the Simulated Shuttle Flight Test System (SS-FTS), when interfaced with existing aircraft systems, provides a research facility for studying concepts for landing the space shuttle orbiter and conventional jet aircraft. The SS-FTS, which includes a general-purpose computer, performs all computations for precisely following a prescribed approach trajectory while properly managing the vehicle energy to allow safe arrival at the runway and landing within prescribed dispersions. The system contains hardware and software provisions for navigation with several combinations of possible navigation aids that have been suggested for the shuttle. The SS-FTS can be reconfigured to study different guidance and navigation concepts by changing only the computer software, and adapted to receive different radio navigation information through minimum hardware changes. All control laws, logic, and mode interlocks reside solely in the computer software.

  18. Research and Implementation of Multi-access Terminal Access VPN Based on Mi-Fi Terminal%基于Mi-Fi的多终端AccessVPN接入研究与实现

    Institute of Scientific and Technical Information of China (English)

    李在浩

    2012-01-01

    In order to solve the probtem ot me mutu-access terminal Access VPN,this paper designed a new scheme with the combination of special APN technology provided by operators and Mi-Fi terminal. It uses the double NAT technology without changing original network. The results of experiment show that new scheme has advantages of network stabilization and setting up quickly. The effect of the multi-access terminal with Mi-Fi was consistent with the single terminal access with APN.%为了解决多个Wi-Fi终端同时接入AccessVPN的问题,采用运营商提供的专用APN技术,利用Mi-Fi和专用APN相结合设计了一种新型实现方案。通过双向NAT转换技术,不改变原网络结构和数据配置。实验结果表明,网络组建快捷,系统运行稳定,通过Mi-Fi实现的多终端接入与单机APN接入效果完全一致。

  19. Research on VoWLAN Terminal Based on FPGA%一种基于FPGA的VoWLAN终端研究

    Institute of Scientific and Technical Information of China (English)

    陶怡栋; 杜永文

    2011-01-01

    In this paper, the design based on Field Programmable Gate Array (FPGA) of wireless IP phone which can work in Wireless Fidelity (Wi-Fi) environment is proposed. The research includes designing Wi-Fi module, transplanting oRi200 soft core processor in FPGA using System-on-a-Programmable-Chip (SOPC) technology, transplanting embedded Linux operating system on OR1200, and finally designing the VolP application software.%在分析现有网络电话终端实现方式的基础上,提出了一种基于现场可编程门阵列(FPGA)且具有无线保真(wi—Fi)功能的无线网络电话终端(VoWLAN终端,基于无线局域网的语音通信终端)的设计方案。主要研究内容包括设计w1-Fi通信模块,利用可编程片上系统(sOPc)技术在FPGA上移植ORl200软核处理器,将嵌入式Linux操作系统移植到ORl200软核处理器上,最后设计出VoIP应用软件。

  20. Aging, Terminal Decline, and Terminal Drop

    Science.gov (United States)

    Palmore, Erdman; Cleveland, William

    1976-01-01

    Data from a 20-year longitudinal study of persons over 60 were analyzed by step-wise multiple regression to test for declines in function with age, for terminal decline (linear relationship to time before death), and for terminal drop (curvilinear relationship to time before death). There were no substantial terminal drop effects. (Author)

  1. Terminal area automatic navigation, guidance, and control research using the Microwave Landing System (MLS). Part 3: A comparison of waypoint guidance algorithms for RNAV/MLS transition

    Science.gov (United States)

    Pines, S.

    1982-01-01

    The results of an investigation carried out for the Langley Research Center Terminal Configured Vehicle Program are presented. The investigation generated and compared three path update algorithms designed to provide smooth transition for an aircraft guidance system from DME, VORTAC, and barometric navaids to the more precise MLS by modifying the desired 3-D flight path. The first, called the Zero Cross Track, eliminates the discontinuity in cross track and altitude error by designating the first valid MLS aircraft position as the desired first waypoint, while retaining all subsequent waypoints. The discontinuity in track angle is left unaltered. The second, called the Tangent Path also eliminates the discontinuity in cross track and altitude and choose a new desired heading to be tangent to the next oncoming circular arc turn. The third, called the Continued Track eliminates the discontinuity in cross track, altitude and track angle by accepting the current MLS position and track angle as the desired ones and recomputes the location of the next waypoint. A method is presented for providing a waypoint guidance path reconstruction which treats turns of less than, and greater than, 180 degrees in a uniform manner to construct the desired path.

  2. Cirrus Crystal Terminal Velocities.

    Science.gov (United States)

    Heymsfield, Andrew J.; Iaquinta, Jean

    2000-04-01

    Cirrus crystal terminal velocities are of primary importance in determining the rate of transport of condensate from upper- to middle-tropospheric levels and profoundly influence the earth's radiation balance through their effect on the rate of buildup or decay of cirrus clouds. In this study, laboratory and field-based cirrus crystal drag coefficient data, as well as analytical descriptions of cirrus crystal shapes, are used to derive more physically based expressions for the velocities of cirrus crystals than have been available in the past.Polycrystals-often bullet rosettes-are shown to be the dominant crystal types in synoptically generated cirrus, with columns present in varying but relatively large percentages, depending on the cloud. The two critical parameters needed to calculate terminal velocity are the drag coefficient and the ratio of mass to cross-sectional area normal to their fall direction. Using measurements and calculations, it is shown that drag coefficients from theory and laboratory studies are applicable to crystals of the types found in cirrus. The ratio of the mass to area, which is shown to be relatively independent of the number of bullets in the rosette, is derived from an analytic model that represents bullet rosettes containing one to eight bullets in 19 primary geometric configurations. The ratio is also derived for columns. Using this information, a general set of equations is developed to calculate the terminal velocities and masses in terms of the aspect ratio (width divided by length), ice density, and rosette maximum dimension. Simple expressions for terminal velocity and mass as a function of bullet rosette maximum dimension are developed by incorporating new information on bullet aspect ratios.The general terminal velocity and mass relations are then applied to a case from the First International Satellite Cloud Climatology Project (ISCCP) Research Experiment (FIRE) 2, when size spectra from a balloon-borne ice crystal

  3. What Determines Joint Venture Termination?

    DEFF Research Database (Denmark)

    Nielsen, Bo Bernhard

    2012-01-01

    Joint venture (JV) research continues to flourish as researchers seek to advance our understanding of why so many JVs fail. Cui and Kumar (this issue) take a contingency approach to explain how and why business relatedness may provide new insights as to what determines JV termination...

  4. Research of intelligent mobile terminal in FMCG sales management%快速消费品销售管理智能移动终端研究

    Institute of Scientific and Technical Information of China (English)

    陈典全

    2012-01-01

    FMCG sales management terminal is a kind of industry-specific terminal which closely related to location and based on the intelligent mobile terminal technology. This paper analyses the status of industry-specific terminal in domestic and foreign, discusses on the key techniques of FMCG sales management terminal, makes the technology roadmap of developing the terminal, views the industrialization and market prospect of this terminal.%快速消费品销售管理终端是与位置密切相关、基于智能移动终端技术的行业定制终端.分析了行业定制智能移动终端的国内外现状,探讨了开发快速消费品销售管理终端所涉及的关键技术,制定了终端开发的技术路线,并对终端的产业化和市场前景进行了展望.

  5. 基于Linux的智能终端键盘驱动的研究与实现%Research and Implementation of Intelligent Terminal Keyboard Driver on Linux

    Institute of Scientific and Technical Information of China (English)

    刘思敏

    2013-01-01

    In order to achieve the requirements for input user interface of the intelligent terminals system, the device driver of keyboard were implemented under Linux environment, based on the OMAP5912 dual-core processor with rich peripheral interface, which further man-machine communication extent of the intelligent terminals.Implementation of the input device driver for the intelligent terminals is the main task of this paper.%  以OMAP5912双核处理器为核心硬件平台,利用其丰富的外围接口,在Montavista Linux环境下,研究并实现了矩阵键盘输入设备的驱动支持,进一步提高了智能终端的人机交流程度。

  6. 移动终端实现视频会议的解决方案研究%Research on Video Conferencing Solution Using Mobile Terminals

    Institute of Scientific and Technical Information of China (English)

    李洁; 吴正茂

    2012-01-01

    阐述了移动终端实现视频会议的必要性.由于WCDMA APN能提供宽带无线接入,选择该技术作为移动终端接入视频会议系统的解决方案.给出了利用WCDMA APN实现H.323和SIP移动终端接入视频会议系统的组网方案.测试数据表明,这一方案能获得满意的效果,具备可行性.%Necessity of video conferencing in mobile terminals is elaborated. Providing broadband wireless accessing, WCDMA APN can be used to implement video conferencing in mobile terminals. Networking solutions of accessing video conferencing systems in H. 323 and SIP terminals are explained. Test data shows satisfactory effects. These solutions are feasible.

  7. 局域网及计算机终端防泄密研究%LAN and Computer Terminal Anti-Phishing Research

    Institute of Scientific and Technical Information of China (English)

    甘性伟

    2011-01-01

    本文首先对局域网及计算机终端泄密的方式进行了分析,主要从局域网内部和局域网实体两个方面进行了介绍,进而据此提出了局域网及计算机终端防泄密的对策。%This paper leaked to the LAN and the computer terminal analysis of the way, mainly from the internal LAN and LAN both entities were introduced,and then then proposed LAN and computer terminal anti-phishing countermeasures.

  8. 电力移动智能终端安全技术研究%Attack and Defense Research on Mobile Intelligent Terminals Used in Electrical Systems

    Institute of Scientific and Technical Information of China (English)

    王春新; 李信; 于然; 易平

    2014-01-01

    电力移动智能终端中存储的用户身份、电力运维数据、电网管理数据等大量重要信息使其具有巨大的攻击价值。Android作为目前全球最广泛使用的移动终端操作系统,也为相当规模的电力移动智能终端所应用,然而,其开放性(第三方开发)等特征在增强其功能和提升应用灵活性的同时也为系统漏洞、恶意应用等多种类型的攻击提供了渠道。文章通过对Android系统安全模型和安全威胁的研究,总结了针对Android平台上的电力移动智能终端的远程和本地攻击、隐私窃取、通信劫持和远程控制技术及方法。最后,提出了在基于Android系统的电力移动智能终端上加载恶意代码检测模块和操作系统加固的建议方案。%Mobile intelligent terminals used in electrical systems store much information,including user identity,operation data of electricity, management information,and etc, which makes them have a great value of being attacked. . As the world's most widely used mobile operating system, Android is applied in a large number of applications within the area of power grid. However, the openness (third-party developers) has provided the possibility to vulnerabilities, malicious behaviors and other types of attacks along with the powerful functionality and flexibility. This paper,based on the Android system security model and existing security threats research, summarizez security threats in Android security, including remote and local attacks, privacy theft, hijacking and remote control techniques. And then this paper provides a corresponding solution by adding malicious code detection module and operating system reinforcement which can help us improve the security of grid management system.

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  7. kfoe Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  8. koaj Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  9. kmss Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  10. kmlb Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  11. paho Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  12. keyw Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  13. klar Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  14. patk Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  15. kogd Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  16. klse Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  17. kgsp Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  18. krog Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  19. pajn Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  20. Terminated Multifamily Mortgages Database

    Data.gov (United States)

    Department of Housing and Urban Development — Includes all terminated HUD Multifamily insured mortgages. It includes the Holder and Servicer at the time the mortgage was terminated. The data is good as of...

  1. Terminated Multifamily Mortgages Database

    Data.gov (United States)

    Department of Housing and Urban Development — This Excel 2010 file includes all terminated HUD Multifamily insured mortgages. It includes the Holder and Servicer at the time the mortgage was terminated. The data...

  2. kpkb Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  3. kaus Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  4. kcar Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  5. kaeg Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  6. ksoa Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  7. paom Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  8. kgmu Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  9. khya Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  10. kjfk Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  11. kpie Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  12. kpns Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  13. ksat Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  14. kcid Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  15. ksny Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  16. klch Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  17. khnd Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  18. ksaf Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  19. kdec Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  20. ktvl Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  1. kttd Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  2. kluk Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  3. ksdf Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  4. krno Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  5. kwwr Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  6. kowb Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  7. kcle Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  8. kcxp Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  9. kgpi Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  10. paun Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  11. keat Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  12. pasc Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  13. koun Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  14. klee Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  15. kiag Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  16. kbmg Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  17. pakn Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  18. kmmh Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  19. kiln Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  20. kbmi Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  1. kcha Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  2. pahn Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  3. khon Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  4. kpeq Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  5. kden Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  6. kmia Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  7. kmaf Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  8. khsa Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  9. kvis Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  10. ktcl Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  11. kmrb Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  12. kcub Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  13. kpdt Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  14. ptkk Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  15. kcsm Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  16. ksfo Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  17. kjhw Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  18. kdab Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  19. kecp Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  20. kmls Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  1. kroc Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  2. kfod Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  3. khdn Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  4. pabe Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  5. ktop Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  6. ktrk Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  7. krvs Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  8. kgld Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  9. kama Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  10. kmgm Terminal Aerodrome Forecast

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are...

  11. TR069协议在IPTV终端管理系统中的研究与应用%Research and Application of TR069 Protocol on IPTV Terminal Management System

    Institute of Scientific and Technical Information of China (English)

    郭先会; 曾浩; 李致兴

    2011-01-01

    According to the present IPTV service and interactive demand, it has the enormous practical significance to design a set of real time and effective terminal management system. The TR069 protocol and its key technologies are analyed. the IPTV set-top box is researched emphatically, and TR069 protocol in the IPTV set-top box terminal management service application has been realized. The test results show that the IPTV set-top box terminal management system can satisfy the IPTV terminal management's real time and effective demand.%根据目前IPTV业务和互动需求,设计一套实时有效的IPTV终端管理系统具有极大的现实意义.详细分析了TR069协议及其关键技术,着重对IPTV机顶盒进行研究,实现了TR069协议在IPTV机顶盒终端管理业务中的应用.测试结果显示,所设计的IPTV机顶盒终端管理系统能够满足IPTV终端管理的实时性、有效性需求.

  12. 49 CFR 1242.27 - Coal marine terminals, ore marine terminals, TOFC/COFC terminals, other marine terminals, motor...

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 9 2010-10-01 2010-10-01 false Coal marine terminals, ore marine terminals, TOFC/COFC terminals, other marine terminals, motor vehicle loading and distribution facilities, and... Structures § 1242.27 Coal marine terminals, ore marine terminals, TOFC/COFC terminals, other marine...

  13. Evaluation and Research on the Mobile Terminal of MOOC at Home and Abroad%国内外MOOC的移动终端评价研究

    Institute of Scientific and Technical Information of China (English)

    胡以涛; 查贵庭; 唐惠燕; 包平

    2015-01-01

    Massive Open Online Courses (MOOC) has set off an upsurge in the domestic education sector. However, there are few reports on the study of mobile learning on open courses. With the popularization of mobile internet, and the increasing proportion of using cell phones, PAD and other mobile terminals, it is necessary to study the course learning in mobile environment. Selecting four representative open course platforms, such as Netease open class, Tsinghua University, Coursera, and TED, this study is intended to evaluate the mobile terminal (APP) application on open platform from the perspective of customers, relying on the Android system to evaluate installation of cell phone APP. This study adopts the “Mobile terminal evaluation index system on open curriculum”, analyzing the mobile terminal operation and service quality of the open curriculum, proposing optimization strategy of the mobile terminal platform, and offer references for the application and construction of mobile terminal.%MOOC 已经在国内教育界掀起了一股热潮。然而,关于 MOOC 的移动学习方式研究鲜有报道。随着移动互联网的普及,用户使用手机、PAD等移动终端上网的比例越来越高,探讨移动环境下的课程学习十分必要。文章拟从用户的视角,评价国内外主流开放课程平台的移动终端(APP)应用,选取网易公开课、清华学堂、TED、Coursera四个国内外具有代表性的开放课程平台,以安卓系统为例,通过手机APP的安装进行评测。文章还采用归纳整合的“MOOC 移动终端评价指标体系”,通过多维度对比分析,评价了 MOOC 移动终端的运行和服务质量情况,提出了移动终端平台优化对策,以期为MOOC移动终端应用与建设提供决策参考。

  14. Organizational Relationship Termination Competence

    DEFF Research Database (Denmark)

    Ritter, Thomas; Geersbro, Jens

    2011-01-01

    that a firm's percentage of unwanted customers decreases significantly as acceptance of termination increases, if the firm's definition of unwanted customers is well understood, and if a firm has clear termination routines. In addition, general focus on profitability and external constraints on relationship...... termination are found to significantly affect a firm's relationship termination competence. The findings suggest that managers should regard termination as a legitimate option in customer relationship management. In order to decrease the number of unwanted customers, managers must accept termination......Most firms are involved in a number of customer relationships that drain the firm's resources. However, many firms are hesitant to address this problem. This paper investigates customer relationship termination at the organizational level. We develop and analyze the organizational dimensions...

  15. RESEARCH ON FAST IMAGE ENCRYPTION METHOD FOR MOBILE TERMINALS%移动终端的图像快速加密方法研究

    Institute of Scientific and Technical Information of China (English)

    赵戈; 万玉晴

    2015-01-01

    According to the requirements of intelligent terminals of mobile Internet in image encryption,this article puts forward the four selection principles in regard to encryption approaches for images of mobile terminals based on analysing the traditional methods of image pixel positions scrambling and pixel greyscale value encryption by transformation,and based on these principles we design the encryption algorithm with dual image keys and dual scrambling which combines the Arnold conversion and the chaotic sequence encryption.Meanwhile,in order to improve computing speed of encryption and decryption,and to realise fast image encryption and decryption of mobile terminals,based on periodic verification and theoretical derivation of Arnold conversion,we derive a fast look-up table method for image encryption and decryption matrix of mobile terminals.It is proved by application that the algorithm can satisfy the requirement of transaction processing in image encryption of mobile terminals.%针对移动互联网智能终端的图像加密需求,在对传统的图像像素位置置乱以及像素灰度值变换加密等方法的分析与实验基础上,提出移动终端图像加密方法的四项选择原则,并按此原则设计Arnold变换和混沌序列加密相结合的图像双重密钥双重置乱加密算法。同时,为了提高加解密运算速度,实现移动终端快速图像加解密工作,在基于对Arnold变换的周期性验证和理论推导,得出移动终端的图像加解密矩阵的快速查表法。应用证明,该算法能满足事务处理对移动终端图像加密的需求。

  16. CONTAINER TERMINALS IN EUROPE

    Directory of Open Access Journals (Sweden)

    Bart W. WIEGMANS

    2001-01-01

    Full Text Available This paper aims to address the linkage between logistics (in particular, the management of marketing channel flows and transport markets, while also the interaction between these two markets and intermodal container terminals is analysed. The marketing channel theory is used to describe all relevant actors and flows that run through marketing channels, starting with customer needs and ending with customer satisfaction. Porter's theory of competitive advantages is used to review competitive forces in both markets. Finally, a competitor analysis is performed for the logistics and transport market. These theories are applied so as to be able to determine the competitive position of intermodal container terminals with a view to the management of marketing channel flows and the physical transport of freight flows. Hence, the central question of this paper is: Which markets are served by intermodal container terminals and with whom are they competing? At present, neither the maritime container terminals nor the continental container terminals appear to have a significant influence in the logistics service market; they concentrate mainly on the physical movement of containers (transshipment. Furthermore, maritime container terminals and continental container terminals are not dominant players in the transport service market. Our conclusion is that continental terminals are predominantly competing with unimodal road transport, with neighbouring continental terminals and with barge transport companies.

  17. 北斗智能车载终端的研究与实现%Research and Implementation of Beidou Intelligent Vehicle Terminal

    Institute of Scientific and Technical Information of China (English)

    王古月; 陶庭叶; 张耀允

    2016-01-01

    The intelligent vehicle terminalin intelligent transportation system of the role and significance are studied. Combined with the WIFI module which based on the Socket communication and GSM/GPRS communication technology,the Beidou intelligent ve-hicle terminal of cm-level positioning precision is achieved by using beidou high precision real-time differential positioning technology, the Beidou intelligent vehicle terminal based on mobile GIS platform are realized by using Android developmentplatform.%文章对智能交通系统中智能车载终端的作用与意义进行了研究,利用北斗高精度实时差分定位技术,并结合基于WIFI模块的Socket通信和GSM/GPRS通信技术,实现了厘米级定位精度,同时基于Android开发平台,实现了基于移动GIS平台的北斗智能车载终端。

  18. 终端虚拟化实现远程医疗的研究与应用%Research and application on telemedicine by terminal virtualization

    Institute of Scientific and Technical Information of China (English)

    殷一栋; 刘昱; 陆松筠; 吴斌

    2014-01-01

    通过对国内远程医疗发展现状进行分析,比较了目前实现远程医疗的两种方式:移动应用方式和终端虚拟化方式。根据自身医院的业务需求,采用终端虚拟化技术实现远程医疗,并阐述了项目实施后的评价。认为终端虚拟化技术在移动医疗领域的探索应用也将为今后区域卫生信息平台建设和医院与社区双向转诊、社区医生到居民家服务提供宝贵的实践经验,为通过技术手段全面提升医疗服务水平开辟新的通道。%By the analysis of status quo of the development of domestic telemedicine in China, mobile application and terminal virtualization telemedicine mode were compared. According to the needs of Ningbo the first hospital, it shows that terminal virtualization technology can help health information platform establishment, dual referral between hospital and community health center, integrated healthcare between community health center and patient’s home, which can full improve medical service by technology.

  19. Analytical Equation for Estimating Terminal Velocities of Spheroidal Particles

    Energy Technology Data Exchange (ETDEWEB)

    Marshall, Douglas W.

    2007-06-01

    An analytical method for estimating the terminal velocities of spheroidal particles in a fluid medium has been derived form a graphical approach proposed by Haider and Levenspiel. Using an analytical equation enables the researcher to calculate the terminal velocities without resorting to graphical interpolations, thereby reducing errors and enabling terminal velocities to be estimated in automated calculations.

  20. Research on intelligent terminal security based on 4G Era%4G时代智能终端信息安全研究

    Institute of Scientific and Technical Information of China (English)

    李莉

    2014-01-01

    With the rapid growth of intelligent end-user, the 4G era gives users an unprecedented experience. On the basis of an introduction of 4G mobile Internet, the paper analyzed 4G network security threats, and then proposed countermeasures from different levels:the network, intelligent terminal and the application.%智能终端用户正在以井喷之势增长,4G的到来给用户带来前所未有的体验。本文在介绍4G移动互联网特征的基础上,分析4G网络存在的安全威胁,并从网络层面、智能终端层面和应用层面,提出解决方案。

  1. Terminal area automatic navigation, guidance, and control research using the Microwave Landing System (MLS). Part 2: RNAV/MLS transition problems for aircraft

    Science.gov (United States)

    Pines, S.

    1982-01-01

    The problems in navigation and guidance encountered by aircraft in the initial transition period in changing from distance measuring equipment, VORTAC, and barometric instruments to the more precise microwave landing system data type navaids in the terminal area are investigated. The effects of the resulting discontinuities on the estimates of position and velocity for both optimal (Kalman type navigation schemes) and fixed gain (complementary type) navigation filters, and the effects of the errors in cross track, track angle, and altitude on the guidance equation and control commands during the critical landing phase are discussed. A method is presented to remove the discontinuities from the navigation loop and to reconstruct an RNAV path designed to land the aircraft with minimal turns and altitude changes.

  2. Research on an Instant Message Mobile Terminal%一种即时通讯移动终端的研究

    Institute of Scientific and Technical Information of China (English)

    陈为人

    2016-01-01

    针对不方便在触摸屏上操作即时通讯程序的使用群体,提出了一种即时通讯移动终端方案。在移动终端适当位置上安装若干个实体按键和指示灯,并将两者与即时通讯聊天群进行绑定,用于接收和发送聊天群的各种信息。通过短按按键,可以接收聊天信息,并对语音进行直接播放,对文字、图像和视频进行放大显示或播放;通过长按按键,可以发送语音聊天信息。%For certain user-groups with dififculties in operating Instant message (IM) applications on a touch-screen, a solution for the mobile terminal was proposed. Several real buttons and one signal light were attached to proper location on a mobile terminal, and were connected to certain IM groups, thus messages can be received from and sent to these groups. By short pressing one of the buttons, messages can be received, voice messages can be played directly, text messages, images and videos can be enlarged for full-screen view. By long pressing a button, voice messages can be sent.

  3. Is Lake Tahoe Terminal?

    Science.gov (United States)

    Coats, R. N.; Reuter, J.; Heyvaert, A.; Lewis, J.; Sahoo, G. B.; Schladow, G.; Thorne, J. H.

    2014-12-01

    Lake Tahoe, an iconic ultra-oligotrophic lake in the central Sierra Nevada, has been studied intensively since 1968, with the goal of understanding and ultimately controlling its eutrophication and loss of clarity. Research on the lake has included a) periodic profiles of primary productivity, nutrients, temperature, and plankton; b) Secchi depth; c) nutrient limitation experiments; d) analysis of sediment cores; e) radiocarbon dating of underwater in-place tree stumps; g) analysis of long-term temperature trends. Work in its watershed has included a) monitoring of stream discharge, sediment and nutrients at up to 20 stream gaging stations; b) monitoring of urban runoff water quality at selected sites; c) development of a GIS data base, including soils, vegetation, and land use. Based on these studies, we know that a) primary productivity in the lake is limited by phosphorus, and continues to increase; b) the loss of clarity continues, but at a declining rate; c) the lake has been warming since 1970, and its resistance to deep mixing is increasing; d) historically the lake level drops below the outlet elevation about one year in seven; e) 6300 to 4300 yrs BP lake level was below the present outlet elevation long enough for large trees to grow; f) the date of the peak snowmelt runoff is shifting toward earlier dates; g) after accounting for annual runoff, loads of nutrients and suspended sediment have declined significantly in some basin streams since 1980. Downscaled outputs from GCM climatic models have recently been used to drive hydrologic models and a lake clarity model, projecting future trends in the lake and watersheds. Results show a) the temperature and thermal stability will likely continue to increase, with deep mixing shutting down in the latter half of this century; b) the lake may drop below the outlet for an extended period beginning about 2085; c) the annual snowpack will continue to decline, with earlier snowmelt and shift from snowfall to rain; d

  4. Multi Terminal Data Integration Research of Internet of Things Based on Middleware Technology%基于中间件的物联网多终端数据整合分析研究

    Institute of Scientific and Technical Information of China (English)

    赵妍

    2015-01-01

    A station mobile terminal to search and express positioning problem of electric vehicle charging based on middle⁃ware technology, in the realization of data fusion and integration of multiple mobile terminal equipment, provide useful in⁃formation for the electric vehicle users.Multi terminal data integration research method of Internet of things is proposed based on middleware technology, physical architecture analysis of electric vehicle charging, charging heterogeneous hierar⁃chical structure of network of electric vehicles, electric vehicle charging station network middleware design, complete the adjustment by the configuration and topology structure, the main controller S3C2440 module design system the design of the interface circuit, the interface circuit and the 485 network and Ethernet communication. Multi terminal data algorithm is improved, data integration of electric vehicle charging station information resources in multi terminal is realized. The ex⁃perimental results show that, the system can use the mobile terminal location and search for electric vehicle charging sta⁃tion, mobile terminal equipment can provide effective information, the data integration performance is nice.%研究一种基于中间件技术的电动汽车充电站移动终端搜索和快递定位问题,在多移动终端设备上实现数据融合和整合分析,为电动车使用用户提供有效信息。提出一种基于中间件的物联网多终端数据整合分析方法,进行电动汽车充电站网络物理体系结构构建,分析电动汽车充电站网络的异构层次化结构,设计的电动汽车充电站网络的中间件,完成路由配置和拓扑结构的调整,设计系统的主控制器S3C2440模块,设计接口电路及485网络和以太网通信的接口电路。改进多终端数据整合算法,实现电动汽车充电站信息资源多终端的数据整合。实验结果表明,该系统能利用移动终端快速定位和搜

  5. 终端VoLTE与RCS融合方案研究%Research on Integration Scheme of VoLTE and RCS on Terminals

    Institute of Scientific and Technical Information of China (English)

    张达; 张婷; 戴国华

    2014-01-01

    介绍了VoLTE和RCS的发展历程,VoLTE与RCS融合是必然趋势,但在此过程中一些关键问题仍未达成一致,不同终端厂家在APN配置、协议栈架构、业务融合等方面实现迥异。通过对VoLTE与RCS融合关键问题进行详细分析,提出了终端VoLTE与RCS融合解决方案的建议。%The development history of VoLTE and RCS is introduced and the integration of them is the inevitable trend. Some critical problems still exist during the integration. Manufacturers behave differently in APN configuration, protocol stack architecture and business integration. By analyzing the key problems for the integration of VoLTE and RCS in detail, the integration solution of VoLTE and RCS on terminals is put forward.

  6. 浮式LNG接收站新建储罐冷却技术研究%Research of cooling technology for new LNG tank of floating LNG terminal

    Institute of Scientific and Technical Information of China (English)

    王晨; 杨公升; 张宝和; 贾砼; 孙谦

    2015-01-01

    本文针对浮式LNG接收站中LNG储罐的冷却过程,通过方案比选确定了冷却方式和冷却介质,介绍了冷却条件和注意事项,详细分析了从管线到储罐的冷却过程。针对冷却过程中出现的常规问题及非常规问题进行了分析并给出相应的解决方案。研究成果对其他浮式或常规LNG接收站中LNG储罐的冷却具有指导和借鉴意义。%The cooling mode and cooling medium are determined in this paper in terms of the cooling process of LNG tank for floating LNG terminal by comparison of different schemes.The cooling conditions and precautions are introduced along with the cooling process of pipeline to storage tank.The solutions for normal and abnormal issues are provided for reference of other LNG tanks’ operation.

  7. Simulation Research on Road Planning of Container Terminal Yard%集装箱码头堆场的道路规划仿真研究

    Institute of Scientific and Technical Information of China (English)

    秦天保

    2011-01-01

    Based on Flexsim simulation platform, a 3D virtual reality simulation model of a large container terminal yard in China is created to assist its road planning. Combining the model with the road capacity theory, the appropriate width of the road in the yard is determined. The architecture, components and processes of the model are discussed. Through simulation experiments, the peak traffic flow data are obtained.Comparing the data with the road traffic capacity, it can judge the reasonableness of the road planning and make recommendations for improvement.%利用Flexsim仿真软件建立规划中的中国某大型集装箱码头堆场3D虚拟现实仿真模型,结合道路通行能力理论,辅助该码头堆场的道路规划,确定合理的上千道路宽度.给出模型的体系结构、组成和流程.通过仿真实验,获取高峰期主干道路交通流量数据,与道路通行能力进行比对,判断道路设计的合理性并提出改进建议.

  8. Terminated Multifamily Mortgages Database

    Data.gov (United States)

    Department of Housing and Urban Development — This dataset includes all terminated HUD Multifamily mortgages except those from the Hospital Mortgage Insurance Program. It includes the Holder and Servicer at the...

  9. Coal terminal directory

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-06-15

    The directory gives a comprehensive listing of the world's coal terminals, in a total of 50 countries including information on throughput, facilities, storage capacity, and vessel size limitation.

  10. 智能终端个性化情景业务方案研究%Research on Personalized Status Setting Service of Intelligent Terminal

    Institute of Scientific and Technical Information of China (English)

    黄挺; 程静; 周毅

    2013-01-01

      随着移动互联网时代的到来,传统电信语音业务面临着前所未有的压力,如何保持传统语音业务的市场占有率成为运营商需要思考的问题。通过比较和分析传统语音业务和新兴移动互联网业务的不同特征,提出按照移动互联网特性提升传统业务可用性的思路,对“智能终端个性化情景业务”的需求、业务特点、技术实现进行分析和研究,为传统业务焕发新生提供了较好的参考。%With the arrival of mobile internet age, traditional voice business faces an unprecedented pressure. How to keep the market occupation rate of traditional voice business becomes a focal problem of the operator. Through comparison and analysis on the different features of traditional voice business and emerging mobile Internet business. An ideal to promote traditional service availability according to the characteristics of mobile Internet is proposed. And the demand, business characteristics, and technical implementations of intelligent terminal personalized scene business are also analyzed and studied, thus to provide a good reference for revitalization of traditional business.

  11. TD-LTE/TD-SCDMA/GGE多模终端异系统重选技术的研究%Research on Reselection Technology of Multi-mode Terminals between TD-LTE and TD-SCDMA/GGE Different System

    Institute of Scientific and Technical Information of China (English)

    彭涛

    2012-01-01

    With domestic TD-LTE test success and the establishment of 4G standard, TD-LTE/TD-SCDMA/GGE multi-mode terminals will surely become the mainstream market In this paper, the process of eell reselection is discussed which is the main form of expression on TD-LTE multi-mode terminals interoperability between different system. Based on high-level protocol of TD-LTE/ TD-SCDMA /GGE system,the reselection criteria of the different system and reselection process between different mode are emphatically researched%随着国内TD-LTE试验的成功和4G标准的确立,TD-LTE/TD-SCDMA/GGE多模终端必然成为市场的主流.针对TD-LTE多模终端异系统之间互操作的主要表现形式——小区重选过程进行研究,以TD-LTE/TD-SCDMA/GGE系统的高层协议为基础,重点研究了系统间重选的准则和不同模式之间的重选流程.

  12. Documents from malicious terminals

    Science.gov (United States)

    Berta, Istvan Z.; Vajda, Istvan

    2003-04-01

    The user wishes to communicate with a remote partner over an insecure network. Since the user is a human being, a terminal is needed for communication. Cryptographic algorithms running on the terminal may provide authenticity for the user's messages. In this paper the problem of sending authentic messages from insecure or untrusted terminals is analyzed. In this case attackers are able to gain total control over the terminal, so the user must consider the terminal a potential attacker. Smart cards are often considered the ultimate tool for secure messaging from untrusted terminals. However, their lack of user interface enables man-in-the middle attack from the terminal. The authors assume, that user is a human being with limited memory and computational power, and also makes mistakes in his calculations. They demnostrate, that only exceptional useres are able to authenticate messages without a trusted device. Several biometric media encapsulate the content of the message and the identity of the sender, such as speech, video and handwriting. The authors suggest, that such media is far more difficult to counterfeit than plaintext. Thus, the user must rely on his other resources, like biometric ones. In the protocol proposed by the authors, the user sends messages in a biometric format, strengthened by simple algorithmic authenticators. The smart card functions as a secure time gate ensuring, that the attacker has extremely little time to counterfeit both the biometric and the algorithmic protection on the message. The authors claim, that with the proper calibration of the biometric method and the time gate of the smart card, their protocol is strong enough for practical use.

  13. Local Termination: theory and practice

    CERN Document Server

    Endrullis, Joerg; Waldmann, Johannes

    2010-01-01

    The characterisation of termination using well-founded monotone algebras has been a milestone on the way to automated termination techniques, of which we have seen an extensive development over the past years. Both the semantic characterisation and most known termination methods are concerned with global termination, uniformly of all the terms of a term rewriting system (TRS). In this paper we consider local termination, of specific sets of terms within a given TRS. The principal goal of this paper is generalising the semantic characterisation of global termination to local termination. This is made possible by admitting the well-founded monotone algebras to be partial. We also extend our approach to local relative termination. The interest in local termination naturally arises in program verification, where one is probably interested only in sensible inputs, or just wants to characterise the set of inputs for which a program terminates. Local termination will be also be of interest when dealing with a specif...

  14. Research on ATP System Technology of Laser Communication Terminal in Space%空间激光通信终端ATP技术与系统研究

    Institute of Scientific and Technical Information of China (English)

    胡贞; 姜会林; 佟首峰; 宋正勋

    2011-01-01

    为了提高某机载空间激光通信终端中捕获、跟踪、对准(ATP)系统的跟踪精度,提出了对该系统的改进方案并研制了样机。对光学接收单元、粗跟踪单元、精跟踪单元以及超前瞄准控制等单元进行了设计。建立了复合轴跟踪系统控制模型,对系统的跟踪控制性能进行了仿真研究。为了验证ATP系统校正粗跟踪残余误差的能力,在激光通信平台振动模拟实验台上进行了模拟实验。结果表明,ATP粗跟踪系统的控制带宽5.5 Hz,精跟踪系统的控制带宽350 Hz,跟踪误差小于2 μrad,ATP系统的跟踪性能得到了提高。%The improved acquisition, tracking, and pointing (ATP) system of the developed airborne laser communication terminal with high precision is presented. The optical antenna, coarse tracking assem-bly, fine tracking assembly, and point-ahead assembly in the ATP system are designed and the prototype is developed. The coarse tracking and the fine pointing control model of the compound-axis system is established and their performance is simulated. In order to further verity the error compensation ability of the ATP system, the experiments to reduce the pointing error are done in the platform vibration simulation system. The results show that if the control frequency bandwidth of the coarse tracking system for the ATP system is about 5. 5 Hz and that of the fine pointing system is about 350 Hz, the pointing error is less than 2 μrad. The performance of the ATP system is improved.

  15. 武汉铁路枢纽总图规划再思考%Further Research on Overall Planning of Wuhan Railway Terminal

    Institute of Scientific and Technical Information of China (English)

    周天杰

    2014-01-01

    In the document titled The Strategic Plan for Development of Wuhan in 2049, there is a grand roadmap of the city development from a regional center to a national center, then to a world city;and this raises a higher requirement on the railway planning and construction for Wuhan, a city with great location advantage and development potential, as well as for the surrounding area. In order to improve the national rapid road network structure, enhance the support function of Wuhan railway network, and guide and coordinate railway construction and urban development in a better way, this paper creatively puts forward a new adjustment scheme for Wuhan railway terminal overall planning at a higher perspective, which is based on the in-depth analysis on the current situation and planning scheme of regional railway network in Wuhan, as well as based on the concept of“systematically integrating the regional railway network resources and reasonably establishing the railway main line networks”. In this new adjustment scheme, it is suggested that: ( a) a total of 12 radial passenger dedicated lines or intercity railways should be planned and built, including the Beijing-Guangzhou Railway, Beijing-Jiulong Railway, Lanzhou-Fuzhou Railway, Shanghai-Wuhan-Chengdu Railway, Ningbo-Wuhan-Chengdu Railway, Qingdao-Kunming Railway, etc.;(b) two new railway corridors should be additionally built for passing through the Yangtze River;(c) the passenger transport system should be in accordance with the pattern of“four main stations and two auxiliary stations”. Finally, in the paper it is considered that the landmark railway network structure and the forward-looking general planning will lay the foundation, for Wuhan playing the role of the“High-speed Railway Tianyuan” in the railway network;and will guide the construction development of Wuhan for a long period in the future.%《武汉2049年远景发展战略规划》绘制了武汉从区域中心城市到国家中心城市、再

  16. 28 CFR 512.18 - Termination or suspension.

    Science.gov (United States)

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Termination or suspension. 512.18 Section 512.18 Judicial Administration BUREAU OF PRISONS, DEPARTMENT OF JUSTICE GENERAL MANAGEMENT AND ADMINISTRATION RESEARCH Research § 512.18 Termination or suspension. The Director, Bureau of Prisons, may...

  17. Polar Satcom System and Related Method

    Science.gov (United States)

    Mitchell, James P. (Inventor)

    2016-01-01

    A system and method for communication relay via a repeater platform satellite vehicle to a near surface station in the Polar Region is disclosed. A preferred embodiment receives a plurality of positioning and content data from a plurality of constellations of Geosynchronous Equatorial Orbit (GEO) Satellite Vehicles (SAT). Additionally, the system receives a plurality of position, time and altitude data from constellations of available repeater platform (RP) SATs. The system receives a request for content from a near surface station located in an area lacking adequate line-of-sight to the GEO based signal. The system aligns antenna elements onboard the desired RP SATs to amplify and relay the GEO based signal toward the near surface station and vice versa. Additionally, the system commands directional antenna elements onboard the station to send and receive the relayed signal making the GEO based content available to the near surface station.

  18. Low Earth Orbiter: Terminal

    Science.gov (United States)

    Kremer, Steven E.; Bundick, Steven N.

    1999-01-01

    In response to the current government budgetary environment that requires the National Aeronautics and Space Administration (NASA) to do more with less, NASA/Goddard Space Flight Center's Wallops Flight Facility has developed and implemented a class of ground stations known as a Low Earth Orbiter-Terminal (LEO-T). This development thus provides a low-cost autonomous ground tracking service for NASA's customers. More importantly, this accomplishment provides a commercial source to spacecraft customers around the world to purchase directly from the company awarded the NASA contract to build these systems. A few years ago, NASA was driven to provide more ground station capacity for spacecraft telemetry, tracking, and command (TT&C) services with a decreasing budget. NASA also made a decision to develop many smaller, cheaper satellites rather than a few large spacecraft as done in the past. In addition, university class missions were being driven to provide their own TT&C services due to the increasing load on the NASA ground-tracking network. NASA's solution for this ever increasing load was to use the existing large aperture systems to support those missions requiring that level of performance and to support the remainder of the missions with the autonomous LEO-T systems. The LEO-T antenna system is a smaller, cheaper, and fully autonomous unstaffed system that can operate without the existing NASA support infrastructure. The LEO-T provides a low-cost, reliable space communications service to the expanding number of low-earth orbiting missions around the world. The system is also fostering developments that improve cost-effectiveness of autonomous-class capabilities for NASA and commercial space use. NASA has installed three LEO-T systems. One station is at the University of Puerto Rico, the second system is installed at the Poker Flat Research Range near Fairbanks, Alaska, and the third system is installed at NASA's Wallops Flight Facility in Virginia. This paper

  19. Modeling Terminal Velocity

    Science.gov (United States)

    Brand, Neal; Quintanilla, John A.

    2013-01-01

    Using a simultaneously falling softball as a stopwatch, the terminal velocity of a whiffle ball can be obtained to surprisingly high accuracy with only common household equipment. This classroom activity engages students in an apparently daunting task that nevertheless is tractable, using a simple model and mathematical techniques at their…

  20. NPOESS Field Terminal Updates

    Science.gov (United States)

    Heckmann, G.; Route, G.

    2009-12-01

    The National Oceanic and Atmospheric Administration (NOAA), Department of Defense (DoD), and National Aeronautics and Space Administration (NASA) are jointly acquiring the next-generation weather and environmental satellite system; the National Polar-orbiting Operational Environmental Satellite System (NPOESS). NPOESS replaces the current Polar-orbiting Operational Environmental Satellites (POES) managed by NOAA and the Defense Meteorological Satellite Program (DMSP) managed by the DoD. The NPOESS satellites carry a suite of sensors that collect meteorological, oceanographic, climatological, and solar-geophysical observations of the earth, atmosphere, and space. The ground data processing segment for NPOESS is the Interface Data Processing Segment (IDPS), developed by Raytheon Intelligence and Information Systems. The IDPS processes NPOESS satellite data to provide environmental data products (aka, Environmental Data Records or EDRs) to NOAA and DoD processing centers operated by the United States government. The IDPS will process EDRs beginning with the NPOESS Preparatory Project (NPP) and continuing through the lifetime of the NPOESS system. IDPS also provides the software and requirements for the Field Terminal Segment (FTS). NPOESS provides support to deployed field terminals by providing mission data in the Low Rate and High Rate downlinks (LRD/HRD), mission support data needed to generate EDRs and decryption keys needed to decrypt mission data during Selective data Encryption (SDE). Mission support data consists of globally relevant data, geographically constrained data, and two line element sets. NPOESS provides these mission support data via the Internet accessible Mission Support Data Server and HRD/LRD downlinks. This presentation will illustrate and describe the NPOESS capabilities in support of Field Terminal users. This discussion will include the mission support data available to Field Terminal users, content of the direct broadcast HRD and LRD

  1. Research on Electronic Commerce Recommendation Model Based on Mobile Terminal%基于移动终端的电子商务商品推荐模型研究

    Institute of Scientific and Technical Information of China (English)

    闫科忠

    2015-01-01

    随着移动互联网技术和电子商务的快速发展,基于移动终端的"掌上消费"在人们的消费形式中占据着越来越大的比重.同时,商品推荐系统作为电子商务系统中的重要组成部分受到了研究学者的普遍关注.因此,如何在商品推荐技术中结合移动终端特性,成为一个值得关注的问题.为了解决这个问题,本文在介绍了几种主流的推荐技术及其优缺点之后,提出了一种新型推荐算法,该算法基于移动终端特性并混合了基于内容和协同过滤两种推荐算法,随后本文详细的介绍了该算法的系统流程与步骤,最后在实验环境下实现了该算法的应用,验证了该算法的可行性.%With the rapid development of mobile Internet technology and electronic commerce,"mobile cons umption",which is based on mobile terminal,it accounts for an increasingly large proportion of people's cons umption.At the same time,as an important part of e-commerce system,the commodity recommendation syste m has caught researchers' universal attention,and they constantly put forward many various recommendation t echnologies.Therefore,it has become a focus that how to infuse the mobile terminals features with commodity recommendation technologies.To solve this problem,this paper discusses several mainstream recommendation t echnologies and their advantages and disadvantages and proposes the new recommendation algorithm which is based on the characteristics of mobile terminals and mixed two kinds of recommendation algorithm,content a nd collaborative filtering.In addition,the process and operation is also introduced in detail in this paper and t he algorithm is finally applied in experimental environment,which verified its feasibility.

  2. Technical Proposal for Loading 3000 Gallon Crude Oil Samples from Field Terminal to Sandia Pressurized Tanker to Support US DOE/DOT Crude Oil Characterization Research Study

    Energy Technology Data Exchange (ETDEWEB)

    Lord, David; Allen, Raymond

    2016-10-01

    Sandia National Laboratories is seeking access to crude oil samples for a research project evaluating crude oil combustion properties in large-scale tests at Sandia National Laboratories in Albuquerque, NM. Samples must be collected from a source location and transported to Albuquerque in a tanker that complies with all applicable regulations for transportation of crude oil over public roadways. Moreover, the samples must not gain or lose any components, to include dissolved gases, from the point of loading through the time of combustion at the Sandia testing facility. In order to achieve this, Sandia designed and is currently procuring a custom tanker that utilizes water displacement in order to achieve these performance requirements. The water displacement procedure is modeled after the GPA 2174 standard “Obtaining Liquid Hydrocarbons Samples for Analysis by Gas Chromatography” (GPA 2014) that is used routinely by crude oil analytical laboratories for capturing and testing condensates and “live” crude oils, though it is practiced at the liter scale in most applications. The Sandia testing requires 3,000 gallons of crude. As such, the water displacement method will be upscaled and implemented in a custom tanker. This report describes the loading process for acquiring a ~3,000 gallon crude oil sample from commercial process piping containing single phase liquid crude oil at nominally 50-100 psig. This document contains a general description of the process (Section 2), detailed loading procedure (Section 3) and associated oil testing protocols (Section 4).

  3. Antecedents of Customer Relationship Termination

    DEFF Research Database (Denmark)

    Geersbro, Jens; Ritter, Thomas

    To end business relationships, or to more actively terminate relationships, has long been acknowledged as part of customer relationship management. However, compared to other elements such as initiation and maintenance of relationships, little is known about the termination of business...... relationships as a managerial task. This paper contributes by (1) developing a conceptualization of relationship termination competence and (2) analyzing its antecedents. The empirical results identify termination acceptance, definition non-customers, organizational relationship termination routines......, and motivation as significant antecedents. Because of this, managers need to develop their organizations in order to use relationship termination as a vital strategy....

  4. Termination Casts: A Flexible Approach to Termination with General Recursion

    Directory of Open Access Journals (Sweden)

    Aaron Stump

    2010-12-01

    Full Text Available This paper proposes a type-and-effect system called Teqt, which distinguishes terminating terms and total functions from possibly diverging terms and partial functions, for a lambda calculus with general recursion and equality types. The central idea is to include a primitive type-form "Terminates t", expressing that term t is terminating; and then allow terms t to be coerced from possibly diverging to total, using a proof of Terminates t. We call such coercions termination casts, and show how to implement terminating recursion using them. For the meta-theory of the system, we describe a translation from Teqt to a logical theory of termination for general recursive, simply typed functions. Every typing judgment of Teqt is translated to a theorem expressing the appropriate termination property of the computational part of the Teqt term.

  5. Mobile Phone Terminal

    Science.gov (United States)

    1978-01-01

    In the photo, an employee of a real estate firm is contacting his office by means of HICOM, an advanced central terminal for mobile telephones. Developed by the Orlando Division of Martin Marietta Aerospace, Orlando, Florida, and manufactured by Harris Corporation's RF Division, Rochester, N.Y., HICOM upgrades service to users, provides better system management to telephone companies, and makes more efficient use of available mobile telephone channels through a computerized central control terminal. The real estate man, for example, was able to dial his office and he could also have direct-dialed a long distance number. Mobile phones in most areas not yet served by HICOM require an operator's assistance for both local and long distance calls. HICOM improves system management by automatically recording information on all calls for accurate billing, running continual performance checks on its own operation, and reporting any malfunctions to a central office.

  6. Navy Multiband Terminal (NMT)

    Science.gov (United States)

    2013-12-01

    Acquisition Management Information Retrieval Dev Est - Development Estimate DoD - Department of Defense DSN - Defense Switched Network Econ - Economic Eng...Memo Note for Shore (for MTBF and MTBCF): Represents IOT &E and Verification of Correction of Deficiencies testing results; mission impact deemed...insignificant due to multiple terminals at Shore site. Note for Sub (for MTBF, MTBCF and MTTR): Represents IOT &E hours; test duration limit for

  7. OPTIMAL GOODS STOWAGE IN AIR CARGO TERMINALS

    Directory of Open Access Journals (Sweden)

    Gennadiy Yun

    2011-03-01

    Full Text Available Abstract. Lack of system research done by domestic and foreign scientists in the field of optimal cargostraffic distribution problem in Air Cargo Terminal, proves necessity of investigation and optimization of thisprocess. Mathematical models and algorithms of optimal problem solving for air cargos distribution inwarehouses on the basis of established functional dependence between freight flow stowage in warehousesand transport vehicle loading (unloading processes are presented in the article.Keywords:algorithms, dimensions of air cargo terminal, effectiveness of loading-unloading processes,freight flow, models.

  8. Research

    African Journals Online (AJOL)

    abp

    2015-10-22

    Oct 22, 2015 ... 3.3-53.0) for terminating labour by cesarean section following arrest disorders [9], low APGAR ... height and taken through the questionaire at the start of the study with additional ..... physiological maturity. J Natl Med Assoc.

  9. Contract Terminations for Default and Convenience.

    Science.gov (United States)

    1981-06-01

    terminations that were converted to convenience ter- minations. Howdyshell’s method (15) was to survey all ASBCA decisions in the selected time period, 1 October...on its own work load. The original research plan also included inquiry of data reported to HQ USAF ( AACC ), Con- tract Finance Office, Comptroller (28...duplicated and mailed for study from Sacramento Air Logistics Center, McClellan AFB. Data Analysis Methods Answers to the two research questions were

  10. Educational Research Postdoctoral Fellowship. Terminal Report.

    Science.gov (United States)

    Schmeding, Robert W.

    During his postdoctoral fellowship year, Dr. Schmeding audited courses in the sociology and economics of education, educational development and planning, and instructional technology. He also did independent study in these areas. (RT)

  11. Three-Terminal Superconducting Device Research

    Science.gov (United States)

    1992-09-18

    L.G., and Fistul, MXV JETP Leut. 30, 213 (1979), Sov. Phys. JETP 54, 206 (198 1). Alfeev, V.N., and Gritsenko , N.I. Soy. Phys. Sol. State 22, 1951 (1980...Phys. Semicond. 13,93 (1979). Alfeev. V.N., and Gritsenko , N.I. Soy. Phys. Sol. State 24, 1258 (1982). SoL’. J. Low Temp. Phys. 9, 290 (1983); 10

  12. Sites that cope, cure and commemorate: weblogs of terminally Ill

    NARCIS (Netherlands)

    Altena, M.; Ngwenya, N.; Hinerman, N.; Glahn, J.A.

    2012-01-01

    This text investigates weblogs of terminally ill created by patients to express emotions about dying and death, as well as to reflect about their life and how they want to be remembered. The authors analysed weblogs of terminally ill employed as research instruments in English hospices as well as

  13. Terminal area automatic navigation, guidance and control research using the Microwave Landing System (MLS). Part 5: Design and development of a Digital Integrated Automatic Landing System (DIALS) for steep final approach using modern control techniques

    Science.gov (United States)

    Halyo, N.

    1983-01-01

    The design and development of a 3-D Digital Integrated Automatic Landing System (DIALS) for the Terminal Configured Vehicle (TCV) Research Aircraft, a B-737-100 is described. The system was designed using sampled data Linear Quadratic Gaussian (LOG) methods, resulting in a direct digital design with a modern control structure which consists of a Kalman filter followed by a control gain matrix, all operating at 10 Hz. DIALS uses Microwave Landing System (MLS) position, body-mounted accelerometers, as well as on-board sensors usually available on commercial aircraft, but does not use inertial platforms. The phases of the final approach considered are the localizer and glideslope capture which may be performed simultaneously, localizer and steep glideslope track or hold, crab/decrab and flare to touchdown. DIALS captures, tracks and flares from steep glideslopes ranging from 2.5 deg to 5.5 deg, selected prior to glideslope capture. Digital Integrated Automatic Landing System is the first modern control design automatic landing system successfully flight tested. The results of an initial nonlinear simulation are presented here.

  14. Storage Allocation in Automated Container Terminals: the Upper Level

    Directory of Open Access Journals (Sweden)

    Mengjue Xia

    2016-10-01

    Full Text Available Nowadays automation is a trend of container terminals all over the world. Although not applied in current automated container terminals, storage allocation is indispensable in conventional container terminals, and promising for automated container terminals in future. This paper seeks into the storage allocation problem in automated container terminals and proposed a two level structure for the problem. A mixed integer programming model is built for the upper level, and a modified Particle Swarm Optimization (PSO algorithm is applied to solve the model. The applicable conditions of the model is investigated by numerical experiments, so as the performance of the algorithm in different problem scales. It is left to future research the lower level of the problem and the potential benefit of storage allocation to automated container terminals.

  15. 智能物联网终端操作系统与生态环境研究%Research on Smart IoT Terminal Operating System and the Ecological Environment

    Institute of Scientific and Technical Information of China (English)

    周晓龙; 王芃; 游思佳; 邸青玥

    2013-01-01

    深入分析物联网终端智能化的趋势,并从智能操作系统、终端开发、应用开发以及通用应用平台等层面提出智能物联网终端操作系统与生态环境方案,为智能物联网终端及应用发展提供借鉴和参考。%This paper analyzes the development trend of smart Iot terminal, proposes a scheme for smart Iot terminal operating system and the ecological environment from smartphone operation system, terminal exploration, application exploration and universal application platform. It aims to provide references for the development of smart Iot terminal and the application.

  16. 基于虚拟成像技术与语音人机交互技术的移动终端的研究∗%The Research of Mobile Terminals based on Virtual Imaging Technology and Voice Human-computer Interaction Research of Mobile Terminal

    Institute of Scientific and Technical Information of China (English)

    林峻; 陈锦彪

    2016-01-01

    在智能电网发展背景下,针对电力一线作业人员应用平板电脑与 PDA 等,存在户外携带便利性较差,不能简化原有的工作,需要双手拿平板电脑或 PDA 操作录入等问题,结合电网发展对电子化作业的需求,探索将虚拟成像技术与语音人机交互技术应用于移动终端,详细阐述了其技术原理与实现方式,采用成熟的 Mediatek 平台与 Android 操作系统,配备高像素数码摄像头、双麦克风降噪处理系统,同时实现 WCDMA、GSM、GPS、蓝牙和 WiFi 等通信定位功能,将所有功能集成于电力安全帽,形成移动作业的新平台。解放电力工作人员双手,实现了作业同时电子化办公、电力系统内的数据交换及远程可视指导作业等。在配网电力检修操作中进行新作业模式尝试,摸索出了科技成果在员工操作培训模式的改进方式,形成了全新的高效作业方式,具有良好的应用前景。%Under the background of the smart grid development,the tablet computers and PDA when applied in the pow-er line homework personnel have poor outdoor carrying convenience,can not simplify the original work,need hands to carry tablet PC or PDA.Combined with power grid development on the demand of electronic exploration,apply virtual imaging technology and speech interactive mobile terminals,elaborate on the technical principle and implementation way,use the mature Mediatek platform and Android operating system,equip with high pixel digital photo head and the double micro-phone down processing.Realize the WCDMA and GSM,GPS,bluetooth and WiFi positioning functions at the same time loith as communication and integrate functions in the power safety helmet to form the new platform of mobile operations. Hands liberation tapping at a keyboard power staff achieves the operating electronic office in the power system data exchange and remote visual guidance,etc.New operations are tried in the

  17. Fuzzy containers allocation problem in maritime terminal

    Directory of Open Access Journals (Sweden)

    Seyed-Mohammad Seyed-Hosseini

    2009-09-01

    Full Text Available Normal.dotm 0 0 1 140 799 UPC 6 1 981 12.0 0 false 18 pt 18 pt 0 0 false false false /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-ascii-font-family:Cambria; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:??; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Cambria; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Containers allocation in terminals has attracted lots of research works due to practical & theoretical importance in transportation literature. In this paper, we developed a fuzzy mathematical programming model for solving problem of allocating the containers in terminal area. The objective is minimizing the total distance traversed by the containers from the ship to the terminal area they are assigned. Fuzzy set concepts are used to treat imprecision regarding the distances between berth and terminals area, number of containers in an arrived ship and estimation of available area in each terminal at a port. We proposed two types of models for optimistic and pessimistic situations. The proposed models have been coded in LINGO8.0 solver and a numerical example has been solved for illustration purpose. The full analysis of the proposed models can cause an optimum allocation of containers of several ships to different terminals of berths in fuzzy environment.

  18. Key Techniques of Terminal Correction Mortar Projectiles

    Institute of Scientific and Technical Information of China (English)

    XU Jin-xiang

    2007-01-01

    The operational principle, the impulse force and terminal guidance laws of terminal correction mortar projectiles(TCMP) are researched in this paper, by using the TCMP simulation program, key techniques such as the miss distance influenced by the acting point of impulse force, the impulse force value, the correction threshold, and the number of impulse rockets are researched in this paper.And the dual pulse control scheme is also studied.Simulation results indicate that the best acting point is near the center of gravity, sufficient correction resources are needed, the miss distance is insentive to the correction threshold, increasing the number of impulse rockets properly is beneficial to increase the hit precision, the velocity pursuit guidance law has less miss distance, the change of the attack angle is milder and the transient time becomes less in the dual impulse control scheme.These conclusions are important for choosing parameters and impulse correction schemes designed for TCMP.

  19. Research

    African Journals Online (AJOL)

    ebutamanya

    30 juin 2013 ... Introduction: L'objectif de cette étude était de déterminer les facteurs associés aux échecs ... peut indiquer la progression de l'infection à VIH et l'échec devrait ..... Kizito H, Kayiwa M, Namuske A, Mirembe G. Family social.

  20. OPTIMAL GOODS STOWAGE IN AIR CARGO TERMINALS

    OpenAIRE

    Yun, Gennadiy; Gyrych, Victoria

    2011-01-01

    Abstract. Lack of system research done by domestic and foreign scientists in the field of optimal cargostraffic distribution problem in Air Cargo Terminal, proves necessity of investigation and optimization of thisprocess. Mathematical models and algorithms of optimal problem solving for air cargos distribution inwarehouses on the basis of established functional dependence between freight flow stowage in warehousesand transport vehicle loading (unloading) processes are presented in the articl...

  1. Terminal Satisfiability in GSTE

    Directory of Open Access Journals (Sweden)

    Yongsheng Xu

    2014-01-01

    Full Text Available Generalized symbolic trajectory evaluation (GSTE is an extension of symbolic trajectory evaluation (STE and a method of model checking. GSTE specifications are given as assertion graphs. There are four efficient methods to verify whether a circuit model obeys an assertion graph in GSTE, Model Checking Strong Satisfiability (SMC, Model Checking Normal Satisfiability (NMC, Model Checking Fair Satisfiability (FMC, and Model Checking Terminal Satisfiability (TMC. SMC, NMC, and FMC have been proved and applied in industry, but TMC has not. This paper gives a six-tuple definition and presents a new algorithm for TMC. Based on these, we prove that our algorithm is sound and complete. It solves the SMC’s limitation (resulting in false negative without extending from finite specification to infinite specification. At last, a case of using TMC to verify a realistic hardware circuit round-robin arbiter is achieved. Avoiding verifying the undesired paths which are not related to the specifications, TMC makes it possible to reduce the computational complexity, and the experimental results suggest that the time cost by SMC is 3.14× with TMC in the case.

  2. Selection of Air Terminal Device

    DEFF Research Database (Denmark)

    Nielsen, Peter V.

    This paper discusses the selection of the air terminal device for the experiments and numerical prediction in the International Energy Agency Annex 20 work: Air Flow Pattern within Buildings,......This paper discusses the selection of the air terminal device for the experiments and numerical prediction in the International Energy Agency Annex 20 work: Air Flow Pattern within Buildings,...

  3. The practice of terminal discharge.

    Science.gov (United States)

    Radha Krishna, Lalit Kumar; Murugam, Vengadasalam; Quah, Daniel Song Chiek

    2017-01-01

    'Terminal discharges' are carried out in Singapore for patients who wish to die at home. However, if due diligence is not exercised, parallels may be drawn with euthanasia. We present a theoretical discussion beginning with the definition of terminal discharges and the reasons why they are carried out in Singapore. By considering the intention behind terminal discharges and utilising a multidisciplinary team to deliberate on the clinical, social and ethical intricacies with a patient- and context-specific approach, euthanasia is avoided. It is hoped that this will provide a platform for professionals in palliative medicine to negotiate challenging issues when arranging a terminal discharge, so as to avoid the pitfall of committing euthanasia in a country such as Singapore where euthanasia is illegal. It is hoped that a set of guidelines for terminal discharges may someday be realised to assist professionals in Singapore and around the world.

  4. Conformal Mapping for Multiple Terminals

    CERN Document Server

    Wang, Weimin; Wang, Qiang; Ren, Hao

    2015-01-01

    Conformal mapping is an important mathematical tool in many physical and engineering fields, especially in electrostatics, fluid mechanics, classical mechanics, and transformation optics. However in the existing textbooks and literatures, it is only adopted to solve the problems which have only two terminals. Two terminals with electric potential differences, pressure difference, optical path difference, etc., can be mapped conformally onto a solvable structure, e.g., a rectangle, where the two terminals are mapped onto two opposite edges of the rectangle. Here we show a conformal mapping method for multiple terminals, which is more common in practical applications. Through accurate analysis of the boundary conditions, additional terminals or boundaries are folded in the inner of the mapped rectangle. Then the solution will not be influenced. The method is described in several typical situations and two application examples are detailed. The first example is an electrostatic actuator with three electrodes. A ...

  5. Productivity simulation model for optimization of maritime container terminals

    Directory of Open Access Journals (Sweden)

    Elen TWRDY

    2009-01-01

    Full Text Available This article describes a proposed productivity simulation model enabling container terminal operators to find optimization possibilities. A research of more than forty terminals has been done, in order to provide a helping tool for maritime container terminals. By applying an adequate simulation model, it is possible to measure and increase the productivity in all subsystem of the maritime container terminal. Management of a maritime container terminal includes a vast number of different financial and operational decisions. Financial decisions are often in a direct connection with investments in infrastructure and handling equipment. Such investments are very expensive. Therefore, they must give back the invested money as soon as possible. On the other hand, some terminals are limited by the physical extension and are forced to increase annual throughput only with sophisticated equipment on the berth side and on the yard as well. Considering all these important facts in container and shipping industry, the proposed simulation model gives a helping tool for checking the productivity and its time variation and monitoring competitiveness of a certain maritime terminal with terminals from the same group.

  6. 电力企业移动智能终端安全应用初探%Research on Secure Application of Smart Mobile Terminals in Power Grid Enterprises

    Institute of Scientific and Technical Information of China (English)

    吴石松; 刘晔

    2013-01-01

    Analyzes the information security risk power grid enterprises which facing for the application of smart mobile terminals, this study tends to put forth an idea of the security control of smart mobile terminals in enterprises by taking the pattern of PC security management in power grid enterprises for reference. Carries out an exploration of the pattern of smart mobile terminal security management suitable for power grid enterprises by employing the now-mature management techniques of smart mobile terminals.%分析电力企业使用移动智能终端时所面临的信息安全风险,提出借鉴电力企业桌面终端安全管理模式来对企业用移动智能终端进行安全管控的思想,并结合当前成熟的移动智能终端管理技术,对适合于电力企业的移动智能终端安全管理模式进行探讨。

  7. 面向移动互联网终端的安全态势感知研究%Research of Security Situation Awareness based on Mobile Network Terminal

    Institute of Scientific and Technical Information of China (English)

    张琦; 钟求喜; 龚建伟

    2012-01-01

    本文在分析移动互联网终端的安全态势基础上,采用面向对象方法设计了移动终端安全态势模型,采用UML类图对终端态势指标进行描述。设计了一个态势数据感知框架,研究并实现了移动终端态势数据的远程获取。%The mobile Internet is a mobile communication network and Internet integration product.Its composition is flexible,the functional differences.First the paper analysis of the mobile terminal security, then design a mobile terminal security situational awareness model based on object-oriented.The model using UML class diagrams describe the awareness index of terminal security.Finally design a situation data perceptive framework,achieve the mobile terminal remote access to the security situation in the data.

  8. The use of mobile satellite communication terminals

    Science.gov (United States)

    Law, P. A.

    The role of small portable terminals in military satellite systems is examined; the discussion embraces terminals with an antenna reflector diameter of seven meters or less. Emphasis is placed on the specification of MARMOSET (Marconi Mobile Satellite Earth Terminal). Also considered are ship-borne satellite terminals, the improved SCOT terminal, interoperability, reduced downlink power, and reliability and availability.

  9. Women’s experience of termination of a pregnancy

    Directory of Open Access Journals (Sweden)

    M Poggenpoel

    2006-09-01

    Full Text Available In November 1996 the Act on the Termination of Pregnancies (no 92 of 1996 was promulgated. This Act enabled women from the age of twelve years old to decide to terminate their pregnancies before twelve weeks gestation without permission of anybody else. Since February 1997 almost 160 000 terminations of pregnancy have been carried out in South Africa. Little research has been conducted to explore and describe the effect of the termination of pregnancies on women Two aims were formulated for the research project described in this article: (1 the exploration and description of the women’s experience of terminating a pregnancy, and (2 the description of counselling guidelines for caring professionals to assist these women. Participants were included in the sample through purposive sampling. Phenomenological interviews were conducted individually. Data were analysed by means of Tesch’s descriptive approach. Counselling guidelines for educational psychologists and other caring professionals to empower the involved were being logically inferred from the results of the interviews. Measures to ensure trustworthiness have been applied in the research and ethical measures have been strictly adhered to during the research. One central theme was identified from the results of the interviews and naïve sketches, namely women’s experiences of a negative relationship with themselves and other persons as well as their focus on their terminated pregnancies.

  10. Terminality implies non-signalling

    Directory of Open Access Journals (Sweden)

    Bob Coecke

    2014-12-01

    Full Text Available A 'process theory' is any theory of systems and processes which admits sequential and parallel composition. `Terminality' unifies normalisation of pure states, trace-preservation of CP-maps, and adding up to identity of positive operators in quantum theory, and generalises this to arbitrary process theories. We show that terminality and non-signalling coincide in any process theory, provided one makes causal structure explicit. In fact, making causal structure explicit is necessary to even make sense of non-signalling in process theories. We conclude that because of its much simpler mathematical form, terminality should be taken to be a more fundamental notion than non-signalling.

  11. Coffee Filter Terminal Velocity.

    Science.gov (United States)

    Caudill, Wayne; Parker, Stone

    In this presentation we will investigate the mathematics and physics of a free-falling object, not for the purpose of research to discover some profound physical phenomena, but rather to enhance students' ability to gather, organize, and analyze data using state of the art hand held technology. We will use the TI-83 plus (a sophisticated graphing…

  12. Optimizing Integrated Terminal Airspace Operations Under Uncertainty

    Science.gov (United States)

    Bosson, Christabelle; Xue, Min; Zelinski, Shannon

    2014-01-01

    In the terminal airspace, integrated departures and arrivals have the potential to increase operations efficiency. Recent research has developed geneticalgorithm- based schedulers for integrated arrival and departure operations under uncertainty. This paper presents an alternate method using a machine jobshop scheduling formulation to model the integrated airspace operations. A multistage stochastic programming approach is chosen to formulate the problem and candidate solutions are obtained by solving sample average approximation problems with finite sample size. Because approximate solutions are computed, the proposed algorithm incorporates the computation of statistical bounds to estimate the optimality of the candidate solutions. A proof-ofconcept study is conducted on a baseline implementation of a simple problem considering a fleet mix of 14 aircraft evolving in a model of the Los Angeles terminal airspace. A more thorough statistical analysis is also performed to evaluate the impact of the number of scenarios considered in the sampled problem. To handle extensive sampling computations, a multithreading technique is introduced.

  13. Testing of DVB-H Mobile Terminals Capability

    Directory of Open Access Journals (Sweden)

    T. Kratochvil

    2007-12-01

    Full Text Available This paper deals with the transmission of digital television to the DVB-H mobile terminals and interaction of DVB-H system with GSM/UMTS network. The mobile terminals testing approach is introduced including the testing transmission system in the laboratory of digital television and mobile communications at the Department of Radio Electronics, Brno University of Technology. This system can be used for efficient analysis in research and development of near future commercial DVB-H networks. The task of the DVB-H providers is to offer commercial mobile terminals capable to operate in DVB-H network with GSM/UMTS interactivity channel.

  14. Balanced Branching in Transcription Termination

    CERN Document Server

    Harrington, K J; Liang, S

    2000-01-01

    The theory of stochastic transcription termination based on free-energy competition requires two or more reaction rates to be delicately balanced over a wide range of physical conditions. A large body of work on glasses and large molecules suggests that this should be impossible in such a large system in the absence of a new organizing principle of matter. We review the experimental literature of termination and find no evidence for such a principle but many troubling inconsistencies, most notably anomalous memory effects. These suggest that termination has a deterministic component and may conceivably be not stochastic at all. We find that a key experiment by Wilson and von Hippel allegedly refuting deterministic termination was an incorrectly analyzed regulatory effect of Mg2+ binding.

  15. 75 FR 13644 - TORP Terminal LP, Bienville Offshore Energy Terminal Liquefied Natural Gas Deepwater Port License...

    Science.gov (United States)

    2010-03-22

    ... Maritime Administration TORP Terminal LP, Bienville Offshore Energy Terminal Liquefied Natural Gas...) for the TORP Terminal LP, Bienville Offshore Energy Terminal (BOET) Liquefied Natural Gas (LNG... Natural Gas Pipeline, Williams Natural Gas Pipeline, Destin Natural Gas Pipeline, and Viosca...

  16. 33 CFR 159.79 - Terminals.

    Science.gov (United States)

    2010-07-01

    ... SANITATION DEVICES Design, Construction, and Testing § 159.79 Terminals. Terminals must be solderless lugs... vibration, and must be marked for identification on the wiring diagram required in § 159.57. Terminal blocks...

  17. Research on the Effects of Pulse Waves Through a Long Cable on Motor Terminal Overvoltage%长电缆传输脉冲波对电机端过电压影响的研究

    Institute of Scientific and Technical Information of China (English)

    张椿; 戴鹏; 宗伟林; 潘庆山

    2013-01-01

    基于传输线理论分析了脉冲波在电缆中的反射过程及电机端过电压的产生机理,通过Matlab仿真软件对脉冲波反射过程进行了分析.根据反射原理,对电机端各反射波分量和入射波分量进行叠加,得到电机端电压.通过PSpice仿真软件建立了单个脉冲-无损电缆-电机仿真模型,并对电机端产生过电压临界脉冲传输的时间做了仿真研究;在此基础上建立了PWM脉冲-无损电缆-电机仿真模型,仿真结果验证了PWM脉冲占空比最大时电机端电压达到最大值.%The reflection of pulse waves through a long cable and the mechanism of motor terminal overvoltage using transmission line theory was analyzed.The pulse wave reflection prosses was simulated with Matlab software. According to the reflection principle,motor terminal over-voltage is the piling up of the incident and reflected wave components.Pusle-lossless cable-motor model was set up in PSpice software, while the critical state and the most likely moment occurring motor terminal overvoltage was studied with the model.And then PWM pulse-lossless cable-motor model was set up to verify that motor terminal voltage reached its maximum as PWM pulse duty cycle is the largest.

  18. Terminal area automatic navigation, guidance, and control research using the Microwave Landing System (MLS). Part 4: Transition path reconstruction along a straight line path containing a glideslope change waypoint

    Science.gov (United States)

    Pines, S.

    1982-01-01

    The necessary algorithms to reconstruct the glideslope change waypoint along a straight line in the event the aircraft encounters a valid MLS update and transition in the terminal approach area are presented. Results of a simulation of the Langley B737 aircraft utilizing these algorithms are presented. The method is shown to reconstruct the necessary flight path during MLS transition resulting in zero cross track error, zero track angle error, and zero altitude error, thus requiring minimal aircraft response.

  19. 面向移动终端的蒙古文CMS的关键技术研究%Research on the Key Technology of Mongolian CMS Oriented Mobile Terminal

    Institute of Scientific and Technical Information of China (English)

    李娟; 包乌格德勒

    2016-01-01

    设计和实现面向移动终端的蒙古文内容管理系统(CMS),根据移动终端设备的硬件特性和用户的浏览习惯进行网页设计,同时要符合蒙古文的显示模式,所以需要解决以下几个关键问题:移动终端设备信息的获取方法、蒙古文网页的显示技术、页面自适应技术等。%In order to design and implement Mongolian CMS Oriented Mobile Terminal, the webpage design must be based on the mobile terminal's hardware characteristic and the users' browsing habits as well as conforms to Mongolian language display patterns. Therefore it is impor-tant to solve following key problems:how to obtain the mobile terminal's equipment information, the Mongolian language webpage display technique and webpage self-adaption method, etc.

  20. Simulation of proton radiography terminal at IMP

    CERN Document Server

    Yan, Yan; Huang, Zhi-Wu; Wang, Jie; Yao, Ze-En; Wang, Jun-Run; Wei, Zheng; Yang, Jian-Cheng; Yuan, You-Jin

    2015-01-01

    Proton radiography is used for advanced hydrotesting as a new type radiography technology due to its powerful penetration capability and high detection efficiency. A new proton radiography terminal will be developed to radiograph static samples at Institute of Modern Physics of Chinese Academy of Science (IMP-CAS). The proton beam with the maximum energy of 2.6 GeV will be produced by Heavy Ion Research Facility in Lanzhou-Cooling Storage Ring (HIRFL-CSR). The proton radiography terminal consists of the matching magnetic lens and the Zumbro lens system. In this paper, the design scheme and all optic parameters of this beam terminal for 2.6GeV proton energy are presented by simulating the beam optics using WINAGILE code. My-BOC code is used to test the particle tracking of proton radiography beam line. Geant4 code and G4beamline code are used for simulating the proton radiography system. The results show that the transmission efficiency of proton without target is 100%, and the effect of secondary particles ca...

  1. Level of service at airport passenger terminals

    Directory of Open Access Journals (Sweden)

    Tasić Tamara D.

    2016-01-01

    Full Text Available Airport terminals are designed by level of service standards which are regulated by International Air Transport Association (IATA. Level of service offered to passengers, regarding to the primary processes, is not necessarily equivalent to the level of service perceived by them. The fact that passengers spending longer times in terminals makes the secondary processes more important in passenger experience. Aiming to improving airport attractiveness, and business success, passenger perception is approached by paying close attention. This paper discusses the two aspects of level of service. Concept of level of service used in air traffic industry with purpose of designing and planning of passenger terminal is derived from the Highway Capacity Manual. Subject of the paper regards last changes which have been introduced during 2014. Second part of the paper explains the needs of examining and analyzing passenger perception from the management point of view, and gives overview of methods which are conducted during researches. Similarities and differences are shown among measurements of level of service and perceived level of service, including the importance of these aspects mutual complementing.

  2. Conformal mapping for multiple terminals

    Science.gov (United States)

    Wang, Weimin; Ma, Wenying; Wang, Qiang; Ren, Hao

    2016-11-01

    Conformal mapping is an important mathematical tool that can be used to solve various physical and engineering problems in many fields, including electrostatics, fluid mechanics, classical mechanics, and transformation optics. It is an accurate and convenient way to solve problems involving two terminals. However, when faced with problems involving three or more terminals, which are more common in practical applications, existing conformal mapping methods apply assumptions or approximations. A general exact method does not exist for a structure with an arbitrary number of terminals. This study presents a conformal mapping method for multiple terminals. Through an accurate analysis of boundary conditions, additional terminals or boundaries are folded into the inner part of a mapped region. The method is applied to several typical situations, and the calculation process is described for two examples of an electrostatic actuator with three electrodes and of a light beam splitter with three ports. Compared with previously reported results, the solutions for the two examples based on our method are more precise and general. The proposed method is helpful in promoting the application of conformal mapping in analysis of practical problems.

  3. Research

    African Journals Online (AJOL)

    A possible strategy to influence students' understanding and perception ... researcher in higher education teaching and learning facilitated the data- ..... B. Qualitative content analysis in nursing research: Concepts, procedures and measures.

  4. Digital autonomous terminal access communications

    Science.gov (United States)

    Novacki, S.

    1987-01-01

    A significant problem for the Bus Monitor Unit is to identify the source of a given transmission. This problem arises from the fact that the label which identifies the source of the transmission as it is put into the bus is intercepted by the Digital Autonomous Terminal Access Communications (DATAC) terminal and removed from the transmission. Thus, a given subsystem will see only data associated with a label and never the identifying label itself. The Bus Monitor must identify the source of the transmission so as to be able to provide some type of error identification/location in the event that some problem with the data transmission occurs. Steps taken to alleviate this problem by modifications to the DATAC terminal are discussed.

  5. SIRKULASI TERMINAL PENUMPANG KAPAL LAUT

    Directory of Open Access Journals (Sweden)

    Etsa Purnama Sari

    2014-01-01

    Full Text Available Wilayah Indonesia yang terdiri dari pulau dan perairan menjadikan angkutan laut menjadi salah satu sarana transportasi yang cukup efektif di negara ini. Daya angkut yang besar dan beragam serta biaya yang lebih murah dengan jarak jangkauan yang luas, membuat sarana ini banyak diminati oleh masyarakat sekaligus juga merupakan pendukung utama perkembangan kehidupan sosial budaya dan roda perekonomian. Untuk mendukung proses transportasi laut ini perlu sarana berupa pelabuhan. Pelabuhan dalam melakukan pelayanan terhadap kapal memiliki beberapa fasilitas pokok dan penunjang yang wajib dimiliki. Salah satunya adalah terminal penumpang kapal laut dengan berbagai kegiatan di dalamnya untuk kedatangan maupun keberangkatan. Masalah ketidaknyamanan dalam berkegiatan, jauhnya akses sirkulasi antara satu kegiatan dengan kegiatan kegiatan embarkasi dan debarkasi yang tidak teratur, pembagian jalur sirkulasi penumpang dan pengantar penumpang yang tidak jelas seringkali muncul akibat sirkulasi yang tidak direncanakan dengan baik pada terminal penumpang kapal laut. Bahkan tidak jarang dapat menimbulkan adanya calo tiket hingga adanya penumpang tanpa tiket yang dapat masuk ke dalam kapal hingga kapal berlayar. Perencanaan sebuah sirkulasi yang tepat pada terminal penumpang kapal laut memerlukan kajian terhadap unsur-unsur sirkulasi seperti pencapaian, pola sirkulasi, jalur sirkulasi, serta bentuk ruang sirkulasi. Kajian unsur-unsur ini selanjutnya diselidiki melalui penelusuran masalah dengan analisis deskriptif melalui penggambaran objek penelitian yang terdapat pada Terminal Penumpang Pelabuhan International Yokohama, Terminal Penumpang Pelabuhan Kobe dan Terminal Penumpang Pelabuhan Osanbashi Hall   As one of the largest archipelago country, sea transportation acts as one of the most effective means of transportation in Indonesia. Large and diverse carrying capacity, lower cost with wide range of distances, are factors which making sea

  6. Termination of Nondeterministic Quantum Programs

    CERN Document Server

    Li, Yangjia; Ying, Mingsheng

    2012-01-01

    We define a language-independent model of nondeterministic quantum programs in which a quantum program consists of a finite set of quantum processes. These processes are represented by quantum Markov chains over the common state space. An execution of a nondeterministic quantum program is modeled by a sequence of actions of individual processes. These actions are described by super-operators on the state Hilbert space. At each step of an execution, a process is chosen nondeterministically to perform the next action. A characterization of reachable space and a characterization of diverging states of a nondeterministic quantum program are presented. We establish a zero-one law for termination probability of the states in the reachable space of a nondeterministic quantum program. A combination of these results leads to a necessary and sufficient condition for termination of nondeterministic quantum programs. Based on this condition, an algorithm is found for checking termination of nondeterministic quantum progr...

  7. Towards a functional understanding of protein N-terminal acetylation.

    Directory of Open Access Journals (Sweden)

    Thomas Arnesen

    2011-05-01

    Full Text Available Protein N-terminal acetylation is a major modification of eukaryotic proteins. Its functional implications include regulation of protein-protein interactions and targeting to membranes, as demonstrated by studies of a handful of proteins. Fifty years after its discovery, a potential general function of the N-terminal acetyl group carried by thousands of unique proteins remains enigmatic. However, recent functional data suggest roles for N-terminal acetylation as a degradation signal and as a determining factor for preventing protein targeting to the secretory pathway, thus highlighting N-terminal acetylation as a major determinant for the life and death of proteins. These contributions represent new and intriguing hypotheses that will guide the research in the years to come.

  8. 基于井下安全的嵌入式SIP终端研究与设计%Research and design of embedded SIP terminal based on underground security

    Institute of Scientific and Technical Information of China (English)

    方天平; 王凤; 程磊

    2012-01-01

    根据目前矿井的安全状况和实际需要,文章设计了一种基于嵌入式Linux的SIP通信终端.该终端利用SIP协议的软电话模型,在基于ARM的嵌入式平台上结合了WIFI无线局域网技术和VoIP语音处理技术,实现了井下的实时语音通话,同时扩展并实现了井下瓦斯的动态检测功能.实验结果表明,本终端功能合理、低功耗、便携性,在提高井下通信和安全等方面具有良好的应用前景.%According to the current situation of mine safety and the actual needs, a design of session initation protocol (SIP) communication terminal based on embedded Linux is introduced in this paper. Using the soft phone model of SIP protocol and based on ARM embedded platform, this terminal achieves the real-time underground voice communication call as well as the dynamic detection function of undermine gas with WIFI wireless LAN technology and voice over IP (VoIP) voice processing technology. The experimental results show that the presented terminal is portable, reasonable and low in power consumption, and it has a good prospect in improving the communication and safety of underground.

  9. Research on Personalized Page-display Optimization Technology in Mobile Terminal%移动终端个性化页面显示优化技术研究

    Institute of Scientific and Technical Information of China (English)

    史晶; 吴庆波; 杨沙洲

    2012-01-01

    当用户浏览页面时,移动终端屏幕尺寸限制及Web页面显示刻板会造成定位信息难、浪费时间的问题.为此,从用户角度出发,提出一种基于移动终端的个性化页面显示系统.建立用户兴趣库、页面分割、语义块重要性学习等模块,将Web页面内容按用户个人兴趣喜好以标题列表的形式显示在移动终端上.实验结果表明,该系统能依据不同用户兴趣快速地实现信息定位,节省用户查找时间.%In the. cases of the restrictions of screen sizes on mobile terminals and the inflexible display of Web pages, it is hard and time-consuming for users to locate information. This paper proposes a personalized page-displaying system from the user's perspective based-on mobile terminals. The system consists of some modules, such as establishment module of users' interest library, page-segmenting module and learning module for calculating the importance of semantic blocks. The system can display title lists of Web pages on mobile terminals according to user's personal interests and hobbies. Experimental results show that the system can locate information quickly and save searching time according to users' different interests.

  10. Research on Terminal Guidance for Re-Entry Vehicle Based on Second-Order Sliding Mode Control%基于二阶滑模的再入飞行器末制导律研究

    Institute of Scientific and Technical Information of China (English)

    窦荣斌; 张科

    2011-01-01

    A new robust terminal guidance law based on second-order sliding mode control is proposed for the problems existing in vehicle re-entry phase after starting of terminal guidance system, such as model uncertainty, complex aerodynamic conditions and constraint conditions for falling angle. Based on second-order variable structure control theory, a terminal guidance law with finite convergence time is designed; meanwhile, in order to weakening the influence of disturbance and chattering, a super-spiral algorithm is introduced for designing the second-order sliding mode terminal guidance law with finite convergence time and continuous control effect. Controlled by this guidance law, the angular rate of line-of-sight ( LOS) and constraint conditions for falling angle can converge quickly, thus ensuring higher guidance accuracy. Theoretic proof of stability based on Lyapunov theorem and simulation results show that the proposed guidance law is effective.%针对再入飞行过程中飞行器末制导启动后制导系统存在的模型不确定性因素以及气动环境复杂等鲁棒制导问题,结合落点角约束条件,提出一种基于二阶滑模的鲁棒末制导律设计方法.基于二阶滑模控制的思想,设计有限时间收敛的二阶滑模末制导律;为了消除有界的内外扰影响同时削弱抖振效果,引入超螺旋算法设计有限时间收敛的连续二阶滑模末制导律.飞行器在该末制导律导引下,弹目视线角速率及落角约束快速收敛,从而保证飞行器有很高的命中精度.基于Lyapunov定理的稳定性理论证明及仿真结果均表明了该末制导方案的有效性.

  11. 12 CFR 611.1220 - Termination resolution.

    Science.gov (United States)

    2010-01-01

    ... 12 Banks and Banking 6 2010-01-01 2010-01-01 false Termination resolution. 611.1220 Section 611... Institution Status § 611.1220 Termination resolution. No more than 1 week before you submit your plan of termination to us, your board of directors must adopt a termination resolution stating its support...

  12. Operational Semantics of Termination Types

    DEFF Research Database (Denmark)

    Nielson, Flemming; Nielson, Hanne Riis

    1996-01-01

    In principle termination analysis is easy: find a well-founded ordering and prove that calls decrease with respect to the ordering. We show how to embed termination information into a polymorphic type system for an eager higher-order functional language allowing multiple-argument functions...... and algebraic data types. The well-founded orderings are defined by pattern matching against the definition of the algebraic data types. We prove that the analysis is semantically sound with respect to a big-step (or natural) operational semantics. We compare our approach based on operational semantics to one...

  13. Stream Productivity by Outermost Termination

    CERN Document Server

    Zantema, Hans; 10.4204/EPTCS.15.7

    2010-01-01

    Streams are infinite sequences over a given data type. A stream specification is a set of equations intended to define a stream. A core property is productivity: unfolding the equations produces the intended stream in the limit. In this paper we show that productivity is equivalent to termination with respect to the balanced outermost strategy of a TRS obtained by adding an additional rule. For specifications not involving branching symbols balancedness is obtained for free, by which tools for proving outermost termination can be used to prove productivity fully automatically.

  14. Stream Productivity by Outermost Termination

    Directory of Open Access Journals (Sweden)

    Hans Zantema

    2010-01-01

    Full Text Available Streams are infinite sequences over a given data type. A stream specification is a set of equations intended to define a stream. A core property is productivity: unfolding the equations produces the intended stream in the limit. In this paper we show that productivity is equivalent to termination with respect to the balanced outermost strategy of a TRS obtained by adding an additional rule. For specifications not involving branching symbols balancedness is obtained for free, by which tools for proving outermost termination can be used to prove productivity fully automatically.

  15. Combining norms to prove termination

    DEFF Research Database (Denmark)

    Genaim, S.; Codish, M.; Gallagher, John Patrick;

    2002-01-01

    of deriving automatically a candidate norm with which to prove termination. Instead of deriving a single, complex norm function, it is sufficient to determine a collection of simpler norms, some combination of which, leads to a proof of termination. We propose that a collection of simple norms, one for each...... of the recursive data-types in the program, is often a suitable choice. We first demonstrate the power of combining norm functions and then the adequacy of combining norms based on regular types....

  16. 卫星通信系统在海运业的应用需求及发展趋势%Shipping's Evolving SATCOM aNeeds and development of satellite communication

    Institute of Scientific and Technical Information of China (English)

    施意; 张爽; 孙雅琴

    2013-01-01

      本文从三种现有海上卫星通信系统的技术指标及其应用现状,结合海运业的需求特点,以未来海运业对海上卫星通信在科技、经济、市场等方面的新技术、新发展和新需求,对海上卫星通信的发展应用前景和趋势进行了展望,得出今后我国海上卫星通信走向数据宽带化、费用低廉化、使用简便化、终端小型化已经成为一种主流趋势的结论。%  This paper from the three maritime satel ite communication system application,From the point view of technology,economy,market and other new requiremengt of the shiooing industry for maritime satel ite communication,The development prospect and trend of maritime satel ite communication are discussed.The future maritime satel ite communication in China to broadband,low cost,simple to use,the terminal miniaturuzation has become a mainstream trend.

  17. Innovative Educational Aerospace Research at the Northeast High School Space Research Center

    Science.gov (United States)

    Luyet, Audra; Matarazzo, Anthony; Folta, David

    1997-01-01

    Northeast High Magnet School of Philadelphia, Pennsylvania is a proud sponsor of the Space Research Center (SPARC). SPARC, a model program of the Medical, Engineering, and Aerospace Magnet school, provides talented students the capability to successfully exercise full simulations of NASA manned missions. These simulations included low-Earth Shuttle missions and Apollo lunar missions in the past, and will focus on a planetary mission to Mars this year. At the end of each scholastic year, a simulated mission, lasting between one and eight days, is performed involving 75 students as specialists in seven teams The groups are comprised of Flight Management, Spacecraft Communications (SatCom), Computer Networking, Spacecraft Design and Engineering, Electronics, Rocketry, Robotics, and Medical teams in either the mission operations center or onboard the spacecraft. Software development activities are also required in support of these simulations The objective of this paper is to present the accomplishments, technology innovations, interactions, and an overview of SPARC with an emphasis on how the program's educational activities parallel NASA mission support and how this education is preparing student for the space frontier.

  18. Innovative Educational Aerospace Research at the Northeast High School Space Research Center

    Science.gov (United States)

    Luyet, Audra; Matarazzo, Anthony; Folta, David

    1997-01-01

    Northeast High Magnet School of Philadelphia, Pennsylvania is a proud sponsor of the Space Research Center (SPARC). SPARC, a model program of the Medical, Engineering, and Aerospace Magnet school, provides talented students the capability to successfully exercise full simulations of NASA manned missions. These simulations included low-Earth Shuttle missions and Apollo lunar missions in the past, and will focus on a planetary mission to Mars this year. At the end of each scholastic year, a simulated mission, lasting between one and eight days, is performed involving 75 students as specialists in seven teams The groups are comprised of Flight Management, Spacecraft Communications (SatCom), Computer Networking, Spacecraft Design and Engineering, Electronics, Rocketry, Robotics, and Medical teams in either the mission operations center or onboard the spacecraft. Software development activities are also required in support of these simulations The objective of this paper is to present the accomplishments, technology innovations, interactions, and an overview of SPARC with an emphasis on how the program's educational activities parallel NASA mission support and how this education is preparing student for the space frontier.

  19. 企业级系统移动智能终端访问控制技术研究%Research of access control technology for mobile intelligent terminal

    Institute of Scientific and Technical Information of China (English)

    黄健; 黄建文; 黄志新; 梁栋; 李俊磊

    2014-01-01

    In this article , we specifically designed an access control framework for mobile intelligent terminal , expanded DTE security mechanism , the framework dynamically allowed key appiications to reserve system resource , system can allocate and manage these reserve system resource with unite , and effectively prevented system resources competition and conflict problem . Compared with traditional access control framework , the access control framework for mobile intelligent terminal can effectively ensured informational confidentiality , integrity and availability .%设计了一种专门应用于企业级系统移动智能终端访问控制框架,拓展 DTE 安全机制,弹性动态地对重要应用进程进行预留系统资源且对其进行统一分配与管理,能够有效预防系统资源竞争而发生的冲突问题。相比传统的访问控制框架而言,该移动智能终端访问控制框架不仅保证了企业级系统敏感数据信息的机密性和完整性,同时也满足了可用性要求。

  20. Research and implementation of mobile terminal of video conferencing system based on H.323%基于H.323视频会议系统移动终端的研究和实现

    Institute of Scientific and Technical Information of China (English)

    杨辉

    2012-01-01

    随着科技的发展,视频会议广泛地应用于各个领域.文中介绍了视频会议系统的发展,视频会议系统主要由终端、网守、网关和MCU组成,它们分别实现不同的功能.在现有的技术前提下,为了提高视频会议系统的性能,提出了一种基于H.323协议和个人通信设备的便携式视频会议终端的设计方法和实现.%With the development of science and technology, video conferencing is widely used in various fields. The development of video conferencing system is introduced. The system is mainly composed of terminal, gatekeeper, gateway and MCU, which are used to achieve different functions. In the existing technology, in order to improve the performance of video conferencing system, the design and implementation of a portable video conferencing terminal based on H. 323 protocol and personal communication device are proposed.

  1. Equiseparability on Terminal Wiener Index

    DEFF Research Database (Denmark)

    Deng, Xiaotie; Zhang, Jie

    2012-01-01

    The aim of this work is to explore the properties of the terminal Wiener index, which was recently proposed by Gutman et al. (2004) [3], and to show the fact that there exist pairs of trees and chemical trees which cannot be distinguished by using it. We give some general methods for constructing...

  2. Life stories of families with a terminally ill child

    Directory of Open Access Journals (Sweden)

    S Hechter

    2001-09-01

    Full Text Available Family units with a terminally ill child have a tendency to withdraw and this isolation may lead to problems in their mental health. A tendency with psychologists, clergy and helpers from other professions is to act as ideal experts on the lives of saddened people. From painful personal experience, this does not seem to enable acquiescence. Therefore, the aim of research on families with terminally ill children, was to explore and describe their lives and to develop an approach to facilitate their families to obtain acquiescence. In this article however, attention will be given to the life-world of families with terminally ill children. The research consists of two phases. In phase one the experiences of four families with terminally ill children are explored and described by means of phenomenological, unstructured, in-depth interviews. In phase two an acquiescence approach, which was designed for educational psychologists to facilitate families with terminally ill children to achieve acquiscence, is described. This approach is based on results from phase one. This article focuses on phase one. In this phase four families were interviewed individually, in the privacy of their homes. The interviews were audiotaped, and were transcribed for the purpose of data gathering. The data was analysed according to Tesch’s method and a literature control was performed to verify the results. Guba’s model for the validity of qualitative research was used.

  3. Research

    African Journals Online (AJOL)

    A sequential mixed-methods research design was chosen. This research ... development of the questionnaire used in the second phase of the survey. Quantitative data ... Microsoft Office Excel 2010 spreadsheet, descriptive data analysis was applied .... undergraduate curriculum, and implementation and evaluation thereof,.

  4. Research

    African Journals Online (AJOL)

    ebutamanya

    2015-03-02

    Mar 2, 2015 ... Shared and mutually beneficial resources within international research ... organizations[1-9]. ... facilitate research career paths, but few career models exist in Africa ..... international and local resources to clinical studies locally. The ability of ... investigators were seen as an important asset for the transfer of.

  5. 移动智能终端APP发展趋势及面临的安全挑战%Research on Development Trend and Security Challenges of Mobile Intelligent Terminal APP

    Institute of Scientific and Technical Information of China (English)

    赵旺飞

    2015-01-01

    The paper analyzes the development trend and security problem of mobile intelligent terminal APP and presents a‘cloud, tube&end’ three-dimension protecting system for mobile phone malware. The system not only adopts both virus behavior analysis and virus scanning methods which complement each other, but also establishes double engine detection system which can identify corresponding APP malware. The protecting system refines the security protecting mean on existing mobile intelligent terminal, promotes APP development regulations established in China to normalize APP development and set up effective supervision system according to APP store, enhances user’s precaution awareness to mobile phone APP and finally guarantees the safety of user information and property on mobile intelligent terminal.%分析了移动智能终端APP的发展趋势及面临的安全问题,提出了一种手机恶意软件“云管端”立体防治体系,采用了病毒行为分析法和病毒体扫描法,这2种方法互补,综合运用形成双引擎侦测,给出了部分相关APP恶意应用软件典型的安全应用场景。完善现有移动智能终端上APP恶意软件安全防护手段,促进国家建立APP应用程序发展管理办法,规范APP应用软件的开发和应用软件商店针对APP上架建立有效的监督检测体系,有效提升用户对手机APP应用软件的防范意识,最终确保移动智能终端用户信息和财产的安全。

  6. Research and design on the secure payment system of mobile terminal based on CA%基于CA的移动终端安全支付系统的研究与设计

    Institute of Scientific and Technical Information of China (English)

    胡千; 景凤宣; 谢晓尧

    2011-01-01

    针对手机支付中可能出现的安全问题,对基于CA的移动终端支付进行了研究,采用了一种新的密钥管理协议,设计了一种基于CA认证的安全手机支付系统,较好地的解决了目前移动支付中的安全问题。%Since mobile payment security problems that may occur, CA -based mobile payment terminals have been studied. A new key management protocol was used, the security of mobile payment system is designed based on CA certificate which can better resolve the current security issues in mobile payment.

  7. Research on Mobile User Migration Strategy Based on Terminal Access Capacity and Network Cooperation%基于终端接入能力与网络协同的移动用户迁移策略研究

    Institute of Scientific and Technical Information of China (English)

    于毛军; 张进锁; 陈学; 白冬梅

    2014-01-01

    针对中国联通GSM网络数据业务承载能力相对较弱及当前面临的高负荷难题,以秦皇岛分公司GSM移动网络为模型试点,结合2G用户及3G非W终端用户向3G网络迁移迫切的现实需求,围绕用户终端支持能力与用户行为,从技术及用户市场发展等角度进行深入剖析研究,提出了一种基于终端接入能力与网络协同的移动用户迁移策略,为市场营销部门制定营销方案及网络规划部门制定滚动规划提供了很好的借鉴与参考。%In view of the problems on weak carrying capacity on data service of China Unicom GSM network and the high load for GSM network, taking Qinhuangdao Unicom GSM mobile network as example, in combination with the urgent need for 2G users and non-WCDMA 3G users migrating to 3G network, around user terminal supporting capability and user behaviour, from the as-pects of technology and user market development, it presents a mobile user migration strategy based on terminal access ca-pacity and network cooperation, to provide reference for marketing department to make marketing plan and network planning department to make rol ing plan.

  8. Research for Intelligent Transportation System Based on Intelligent Terminal Location%基于智能终端定位的智能交通疏导系统研发

    Institute of Scientific and Technical Information of China (English)

    张伟; 方旭明

    2011-01-01

    在城市发展到比较成熟的阶段,缓解交通堵塞可借鉴智能交通系统(Intelligent Transportation System,ITS)的理念,文章在现有的无线通信设施和车辆系统上,通过融合信息与通信技术、移动互联网和智能终端设备构建一套道路交通流量计算和道路交通服务系统。该系统通过车载智能终端的GPS数据进行实时交通流量计算,并且将计算的交通流量信息实时地反馈给驾驶车辆的用户,方便用户出行道路选择,缓解交通阻塞。%Adapting ITS concept to solve traffic congestion is a feasible solution when urban development has been in mature stage. A system for road traffic flow calculation and road service by fusion of information and communication technology, mobile internet and intelligent terminal device is provided in this article. The system calculates real-time traffic flow with GPS data submitted by intelligent terminal device on vehicle, and then feeds these results back to drivers. Road traffic flow presented on map can help choosing travel road and relieve the traffic congestion.

  9. 基于可信计算的移动智能终端安全技术研究%Research on Security Technology of Mobile Intelligent Terminal Based on Trusted Computing

    Institute of Scientific and Technical Information of China (English)

    雷贵; 班增辉

    2015-01-01

    With the continuous development of modern science and technology,the computing power of mobile terminal is gradually increasing,but the reasonable use of the security technology in the development process has gradually attracted people’s attention. In addition,with the appearance of the mobile platform open and flexible characteristics,the security of mobile terminal operating environment has been threatened.Therefore,it is necessary to study and discuss the application of the technology.This paper begins with the analysis on the traditional security technology,and expounds the security features of the trusted mobile platform,which aims at promoting the further innovation of the current communication means.%随着现代化科学技术的不断发展,移动终端计算能力逐渐增强,但其发展过程中对安全技术的合理运用也逐渐引起了人们的关注。此外,随着移动平台开放性及灵活性的显现,移动终端运行环境的安全性遭到了一定的威胁,为此,为保障移动终端运行的安全性,对其技术层面的应用展开更为深入的研究与探讨是非常必要的。文章从传统安全技术分析入手,详细阐述了可信移动平台的安全特性,旨在推动当前通信手段的进一步创新。

  10. LCC与VSC混联型多端高压直流输电系统运行特性的仿真研究%Simulation research on operation characteristics of hybrid multi-terminal HVDC system with LCC and VSC

    Institute of Scientific and Technical Information of China (English)

    雷霄; 王华伟; 曾南超; 闫朝; 谢国平; 李新年; 吴楠

    2013-01-01

    设计了由五个LCC换流站和一个VSC站组成的串并联混合型六端高压直流输电系统,该结构能发挥不同电压等级的LCC换流站以及VSC换流站的优势,扩展多端直流输电的应用范围.本文基于PSCAD/EMTDC平台建立该系统单极仿真模型,进行了稳态运行和暂态故障过程的相关研究,设计了直流功率协调控制器实现各换流站功率的协调控制,并提出了单换流站紧急停运的控制保护配合方法,仿真结果表明混联多端系统的可行性及控制保护策略的有效性.%A hybrid multi-terminal HVDC system consisting of five LCC converter stations and one VSC station is designed. This configuration can exploit the advantages both of LCC and VSC on different voltage levels to the full, and can extend the range of MTDC. A monopole model is built based on EMTDC/PSCAD, and the stable operation and transient faulty process of parallel multi-terminal HVDC system are studied. The DC power balance controller is worked out to achieve power cooperative control between converter stations. The control and protection coordinative sequences for emergency stop of one station is put forward, and simulation results prove the practicability of this configuration and the efficiency of the strategy.

  11. A Non-Termination Criterion for Binary Constraint Logic Programs

    CERN Document Server

    Payet, Etienne

    2008-01-01

    On the one hand, termination analysis of logic programs is now a fairly established research topic within the logic programming community. On the other hand, non-termination analysis seems to remain a much less attractive subject. If we divide this line of research into two kinds of approaches: dynamic versus static analysis, this paper belongs to the latter. It proposes a criterion for detecting non-terminating atomic queries with respect to binary CLP rules, which strictly generalizes our previous works on this subject. We give a generic operational definition and an implemented logical form of this criterion. Then we show that the logical form is correct and complete with respect to the operational definition.

  12. Research

    African Journals Online (AJOL)

    raoul

    2012-02-17

    Feb 17, 2012 ... This is an Open Access article distributed under the terms of the Creative ..... However, this system has great potential to negatively affect access to ... Dr. Samuel Yaw Opoku: Defining the Concept and Research Design; ...

  13. Research

    African Journals Online (AJOL)

    abp

    2016-04-26

    Apr 26, 2016 ... Management of biomedical waste in two medical laboratories in Bangui, Central ... Research .... Central African Republic Ministry of Health and corresponding ethics ..... In CAR, the management of BW remains embryonic. It is.

  14. Research

    African Journals Online (AJOL)

    ebutamanya

    2015-08-28

    Aug 28, 2015 ... Ethiopia, 2Bahir Dar Regional Health Research Laboratory Center, Department ... of Public Health, 4Institute of Medical Microbiology and Epidemiology of Infectious .... active ingredient x 10,000 dilution rate of product): 0.1%.

  15. Research

    African Journals Online (AJOL)

    raoul

    2011-03-11

    Mar 11, 2011 ... ... to General Organization of Teaching Hospitals and Institutes, Egypt, 2Department of .... Ethiopia at Max-Burger Research Institute, Leipzig, Germany ... [22] than Croatia (50%), Australia (53%), Thailand (41%), Italy (32.6%), ...

  16. Research

    African Journals Online (AJOL)

    7, No. 1 AJHPE. Research. A comprehensive approach to curriculum evaluation is deemed ... While evaluators are guided by the experiences of using different methods, ..... provided a follow-up in-depth exploration of the quantitative results.

  17. Research

    African Journals Online (AJOL)

    ... community in the design, conduct and/or evaluation of these activities. ... During Phase I of the mixed-methods research design, data were collected by ... A questionnaire survey was administered to all students registered for ... Data analysis.

  18. Research

    African Journals Online (AJOL)

    ebutamanya

    2016-02-03

    Feb 3, 2016 ... Published in partnership with the African Field Epidemiology Network (AFENET). (www.afenet.net) .... What is known about this topic ... India Co-ordinated Research Project. Ministry .... African Journal of Biotechnology. 2005 ...

  19. Research

    African Journals Online (AJOL)

    raoul

    2011-12-06

    Dec 6, 2011 ... Asia indicate a high incidence of Kikuchi lymphadenitis [6]. However ... It is believed that information derived from this study will be of immense value to the attending physician and also form a baseline data for future research.

  20. Research

    African Journals Online (AJOL)

    judicious use of current best evidence in making decisions about the care of individual ... [5] This highlights that teaching research methodology is inclined ... to evidence-based practice in final-year undergraduate physiotherapy students.

  1. Research

    African Journals Online (AJOL)

    curricula to address health systems changes and challenges .... Likert scale questions were used, along with open-ended qualitative questions. ... Clear communicator: Able to communicate important aspects of theory, research findings clearly ...

  2. researchers

    African Journals Online (AJOL)

    levels who is fluent in only Afrikaans and English. Differences in race .... The lack of knowledge of a particular vernacular often places a researcher firmly as an ..... discourse of African American women', Black women in the academy. Promises.

  3. Research

    African Journals Online (AJOL)

    2014-05-06

    May 6, 2014 ... Methods. The researchers used an exploratory, sequential mixed-method design, ... This design is useful to explore a topic, using qualitative ... interview a Delphi questionnaire was used to gather additional quantitative.

  4. Research

    African Journals Online (AJOL)

    Research. Clinical teaching is a technique used in the education of nurses. It ... learnt in a contextualised learning environment, which should support them in their ..... development of continuing professional development strategies. This study ...

  5. Research

    African Journals Online (AJOL)

    ebutamanya

    2016-03-03

    Mar 3, 2016 ... radiation therapy [9, 10]. The signs of obstructive ... year's undergraduate medical student: socio-demographic including age (in years), sex. .... awareness and enhance further research in this domain. Conclusion. Patients ...

  6. Research

    Science.gov (United States)

    Mathematics Teaching, 1973

    1973-01-01

    Implications for teachers from Piagetian-oriented piagetian-oriented research on problem solving reported in an article by Eleanor Duckworth are presented. Edward de Bono's Children Solve Problems,'' a collection of examples, is also discussed. (MS)

  7. Research

    African Journals Online (AJOL)

    abp

    2016-04-29

    Apr 29, 2016 ... performance hence workplace training is tied to achieving organizational aims and objectives. .... Ethical consideration: Permission to conduct research was sought from the County ..... Everybody Business: Strengthening.

  8. Mobile Terminal Management in 3G

    Institute of Scientific and Technical Information of China (English)

    SHANG Jing; MAN Yi; SONG Jun-de; SONG Mei-na

    2005-01-01

    Recently, Terminal has become one of the key issues in the 3G development. In the paper, we study the mobile terminal management in 3G network. Based on the analysis of problems encountered with the terminals, the paper describes the use cases of terminal management. A system architecture with its function components of mobile terminal management system is proposed. Moreover, a possible implementation solution is introduced and described. A Management Information Model (MIM) for terminal management is also proposed to support the management services.

  9. Clothes Dryer Automatic Termination Evaluation

    Energy Technology Data Exchange (ETDEWEB)

    TeGrotenhuis, Ward E.

    2014-10-01

    Volume 2: Improved Sensor and Control Designs Many residential clothes dryers on the market today provide automatic cycles that are intended to stop when the clothes are dry, as determined by the final remaining moisture content (RMC). However, testing of automatic termination cycles has shown that many dryers are susceptible to over-drying of loads, leading to excess energy consumption. In particular, tests performed using the DOE Test Procedure in Appendix D2 of 10 CFR 430 subpart B have shown that as much as 62% of the energy used in a cycle may be from over-drying. Volume 1 of this report shows an average of 20% excess energy from over-drying when running automatic cycles with various load compositions and dryer settings. Consequently, improving automatic termination sensors and algorithms has the potential for substantial energy savings in the U.S.

  10. True unipolar ECG machine for Wilson Central Terminal measurements.

    Science.gov (United States)

    Gargiulo, Gaetano D

    2015-01-01

    Since its invention (more than 80 years ago), modern electrocardiography has employed a supposedly stable voltage reference (with little variation during the cardiac cycle) for half of the signals. This reference, known by the name of "Wilson Central Terminal" in honor of its inventor, is obtained by averaging the three active limb electrode voltages measured with respect to the return ground electrode. However, concerns have been raised by researchers about problems (biasing and misdiagnosis) associated with the ambiguous value and behavior of this reference voltage, which requires perfect and balanced contact of at least four electrodes to work properly. The Wilson Central Terminal has received scant research attention in the last few decades even though consideration of recent widespread medical practice (limb electrodes are repositioned closer to the torso for resting electrocardiography) has also sparkled concerns about the validity and diagnostic fitness of leads not referred to the Wilson Central Terminal. Using a true unipolar electrocardiography device capable of precisely measuring the Wilson Central Terminal, we show its unpredictable variability during the cardiac cycle and confirm that the integrity of cardinal leads is compromised as well as the Wilson Central Terminal when limb electrodes are placed close to the torso.

  11. High Octane Fuel: Terminal Backgrounder

    Energy Technology Data Exchange (ETDEWEB)

    Moriarty, Kristi [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2016-02-11

    The Bioenergy Technologies Office of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy sponsored a scoping study to assess the potential of ethanol-based high octane fuel (HOF) to reduce energy consumption and greenhouse gas emissions. When the HOF blend is made with 25%-40% ethanol by volume, this energy efficiency improvement is potentially sufficient to offset the reduced vehicle range often associated with the decreased volumetric energy density of ethanol. The purpose of this study is to assess the ability of the fuel supply chain to accommodate more ethanol at fuel terminals. Fuel terminals are midstream in the transportation fuel supply chain and serve to store and distribute fuels to end users. While there are no technical issues to storing more ethanol at fuel terminals, there are several factors that could impact the ability to deploy more ethanol. The most significant of these issues include the availability of land to add more infrastructure and accommodate more truck traffic for ethanol deliveries as well as a lengthy permitting process to erect more tanks.

  12. Fault location by one-terminal measurement in distribution network

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Presents the theory behind, the system design of the acquisitionof parameters for and the experiment on the fault location by one-terminal measurement in actual distribution network, and some of laws governing the on-site acquisition of parameters and fault location established through experimental research on actual power distribution lines.

  13. Research on the energy saving technology of BOG compressor of Jiangsu LNG Receiving Terminal%江苏LNG接收站BOG压缩机的节能降耗措施

    Institute of Scientific and Technical Information of China (English)

    段碧君

    2012-01-01

    介绍了LNG接收站工艺流程,阐述了活塞式压缩机的工作原理与技术特点,给出了各能耗参数的计算方法,包括排气量、供气量、容积系数、排气压力与级数、压缩比、排气温度、功率、效率等.分析了LNG接收站BOG压缩机的能耗问题,确定了能耗的主要影响因素,包括进气温度、进气压力、气相介质携液率、压缩比以及驱动电机的性能.基于此,提出了节能降耗措施:降低进气温度、控制进气压力、降低气相携液率、将电机改造为变频电机、在电动机拖动系统中加装功率因数控制器、经常更换冷却水系统的冷却液.%This article introduces the process flow of LNG receiving terminal, and also elaborates the working principle and technical characteristics of piston compressors. It also gives the calculating method of the energy consumption parameters, including the exhaust gas volume, the volume coefficient, discharge pressure and progression, the compression ratio, exhaust temperature, power, efficiency, and so on. It identifies the main factors of energy consumption of LNG receiving terminal BOG compressor, including the intake air temperature, inlet pressure, compression ratio and the drive motor performance. So, the energy saving measures are as follows, that is, reducing intake air temperature, controlling the inlet pressure, reducing the gas medium carrying liquid ratio, transforming the motor to frequency conversion motor, installing power factor controllers, regularly replacing of the cooling water coolant system.

  14. 面向移动终端细分市场的差异化定制技术研究%Research of Differentiated Customization Technology in Mobile Terminal Market Segments

    Institute of Scientific and Technical Information of China (English)

    马武; 李海强; 许明

    2012-01-01

    随着智能移动终端普及率的提高,智能终端的用户逐渐根据性别、年龄、收入、职业等因素自然形成不同的用户区隔,但面向大多数消费者的通用型智能终端仍是市场的主流.通用型智能终端在硬件配置、操作系统、应用软件、用户界面设计等方面同质化严重,无法满足细分市场用户的差异化需求.为实现差异化定制,运营商或终端厂商应该根据细分市场用户的主要需求,结合终端软硬件技术的发展情况,在用户可接受价格的约束下开展终端产品的定制工作.本文介绍了一种根据用户自然属性与其对电子消费品的认知水平进行市场区隔的方法,针对区隔出的细分市场,提出了一种差异化定制智能移动终端产品的方法.%With the increasing penetration of smart phone devices, smart phone users gradually form different user segments according to gender, age, income, occupation and other natural factors. But general-purpose smart phone is still the market's mainstream. General-purpose smart phones are similar in the hardware components, operating system, application, user interface and other aspects. They can not meet the user's needs of different segments. To achieve differentiated customization, operator or terminal manufacturers should carry on terminal customization based on user's main demand of the segments, the hardware and software technology development, and the constraints of the user's acceptable price. This paper firstly introduces a market segmentation approach of consumer electronics market based on its natural attributes and its user awareness of consumer electronics, secondly proposes a differentiated customization approach of smart phone according to the segment market.

  15. Communicating terminal diagnoses to Hispanic patients.

    Science.gov (United States)

    Carrion, Iraida V

    2010-06-01

    This study addressed factors physicians employ in their communication of a terminal diagnosis and a hospice referral to Hispanic patients. The research method used was an exploratory qualitative in-depth semi-structured interview with thematic analysis. The interviews were with ten physicians in Central Florida. The interviews were conducted in Spanish and/or English with physicians who serve terminally ill Hispanic patients. The findings provide vital information on factors that impact communication of diagnosis and hospice referral. Themes emerged relating to role of family members and end-of-life decision-making. Language barriers and limited knowledge of cultural factors and beliefs impacted communication related to end-of-life decisions. Gaps in training and education for physicians were also identified. These results suggest that discussing end-of-life issues with the diverse category of Hispanic patients and families will be enhanced by eliminating language barriers, increased understanding of the role of family members, and knowledge of cultural factors and beliefs related to end-of-life decisions.

  16. Satellite communications provisions on NASA Ames instrumented aircraft platforms for Earth science research/applications

    Science.gov (United States)

    Shameson, L.; Brass, J. A.; Hanratty, J. J.; Roberts, A. C.; Wegener, S. S.

    1995-01-01

    Earth science activities at NASA Ames are research in atmospheric and ecosystem science, development of remote sensing and in situ sampling instruments, and their integration into scientific research platform aircraft. The use of satellite communications can greatly extend the capability of these agency research platform aircraft. Current projects and plans involve satellite links on the Perseus UAV and the ER-2 via TDRSS and a proposed experiment on the NASA Advanced Communications Technology Satellite. Provisions for data links on the Perseus research platform, via TDRSS S-band multiple access service, have been developed and are being tested. Test flights at Dryden are planned to demonstrate successful end-to-end data transfer. A Unisys Corp. airborne satcom STARLink system is being integrated into an Ames ER-2 aircraft. This equipment will support multiple data rates up to 43 Mb/s each via the TDRS S Ku-band single access service. The first flight mission for this high-rate link is planned for August 1995. Ames and JPL have proposed an ACTS experiment to use real-time satellite communications to improve wildfire research campaigns. Researchers and fire management teams making use of instrumented aircraft platforms at a prescribed burn site will be able to communicate with experts at Ames, the U.S. Forest Service, and emergency response agencies.

  17. 48 CFR 12.403 - Termination.

    Science.gov (United States)

    2010-10-01

    ... entitled “Termination for the Government's Convenience” and “Termination for Cause” contain concepts which... required to comply with the cost accounting standards or the contract cost principles in part 31....

  18. Research

    African Journals Online (AJOL)

    abp

    2013-02-25

    Feb 25, 2013 ... Of these 56 eyes, the visual acuity in 49 eyes (87.5%) improved with pinhole. Twenty seven pupils had ... (www.afenet.net). Research ... primary basic 1 to 6 and aged 5 to 15 years were included in the study. The United ...

  19. Research

    African Journals Online (AJOL)

    collaboration, but also in less tangible ways affecting quality of research.[5] ... Methods. A 40-hour workshop in biostatistical reasoning was conducted ... test median score was 68% (IQR 62 - 76%), with p<0.0001 for the overall comparison of pre- v. post-scores. ... limitations of a traditional lecture-based mode of instruction.

  20. Research

    African Journals Online (AJOL)

    abp

    2014-03-13

    Mar 13, 2014 ... &Corresponding author: Dr. Oliver Ezechi, Clinical Sciences Division, Nigerian Institute of Medical Research, ... with Hepatitis B and C Virus infection in pregnant HIV positive Nigerians. ... Whether or not HCV directly impacts HIV disease ..... natural history, fibrosis, and impact of antiretroviral treatment:.