WorldWideScience

Sample records for air taxi service

  1. Suggestions about Taxi Service in Beijing

    Institute of Scientific and Technical Information of China (English)

    李颖

    2006-01-01

    @@ No matter what kinds1 of work we are engaged in, we usually play the role of the customers2 in life. Maybe we offer service to our clients, but at the same time, we get service from other people. So, to the society3, it is very important of the level of the service occupations4. In this essay, I want to talk about the service of the taxi in Beijing5. Because there are some problems in this service occupation, I will give three suggestions to these problems6.

  2. Measuring and modeling air exchange rates inside taxi cabs in Los Angeles, California

    Science.gov (United States)

    Shu, Shi; Yu, Nu; Wang, Yueyan; Zhu, Yifang

    2015-12-01

    Air exchange rates (AERs) have a direct impact on traffic-related air pollutant (TRAP) levels inside vehicles. Taxi drivers are occupationally exposed to TRAP on a daily basis, yet there is limited measurement of AERs in taxi cabs. To fill this gap, AERs were quantified in 22 representative Los Angeles taxi cabs including 10 Prius, 5 Crown Victoria, 3 Camry, 3 Caravan, and 1 Uplander under realistic driving (RD) conditions. To further study the impacts of window position and ventilation settings on taxi AERs, additional tests were conducted on 14 taxis with windows closed (WC) and on the other 8 taxis with not only windows closed but also medium fan speed (WC-MFS) under outdoor air mode. Under RD conditions, the AERs in all 22 cabs had a mean of 63 h-1 with a median of 38 h-1. Similar AERs were observed under WC condition when compared to those measured under RD condition. Under WC-MFS condition, AERs were significantly increased in all taxi cabs, when compared with those measured under RD condition. A General Estimating Equation (GEE) model was developed and the modeling results showed that vehicle model was a significant factor in determining the AERs in taxi cabs under RD condition. Driving speed and car age were positively associated with AERs but not statistically significant. Overall, AERs measured in taxi cabs were much higher than typical AERs people usually encounter in indoor environments such as homes, offices, and even regular passenger vehicles.

  3. Understanding taxi travel patterns

    Science.gov (United States)

    Cai, Hua; Zhan, Xiaowei; Zhu, Ji; Jia, Xiaoping; Chiu, Anthony S. F.; Xu, Ming

    2016-09-01

    Taxis play important roles in modern urban transportation systems, especially in mega cities. While providing necessary amenities, taxis also significantly contribute to traffic congestion, urban energy consumption, and air pollution. Understanding the travel patterns of taxis is thus important for addressing many urban sustainability challenges. Previous research has primarily focused on examining the statistical properties of passenger trips, which include only taxi trips occupied with passengers. However, unoccupied trips are also important for urban sustainability issues because they represent potential opportunities to improve the efficiency of the transportation system. Therefore, we need to understand the travel patterns of taxis as an integrated system, instead of focusing only on the occupied trips. In this study we examine GPS trajectory data of 11,880 taxis in Beijing, China for a period of three weeks. Our results show that taxi travel patterns share similar traits with travel patterns of individuals but also exhibit differences. Trip displacement distribution of taxi travels is statistically greater than the exponential distribution and smaller than the truncated power-law distribution. The distribution of short trips (less than 30 miles) can be best fitted with power-law while long trips follow exponential decay. We use radius of gyration to characterize individual taxi's travel distance and find that it does not follow a truncated power-law as observed in previous studies. Spatial and temporal regularities exist in taxi travels. However, with increasing spatial coverage, taxi trips can exhibit dual high probability density centers.

  4. 互联网专车服务对出租车行业垄断的影响%Impacts on Monopoly of Taxi Industry from Online Tailored Taxi Service

    Institute of Scientific and Technical Information of China (English)

    肖沛然

    2015-01-01

    By mathematical modelling,it is clear that the monopoly of taxi industry does harm the consumers and the taxi drivers because their social welfare is reduced,and the monopoly profit is grabbed by taxi companies and government.Online tai-lored taxi service has displayed its power to break the monopoly by lower prices and better service.The results from the model analysis indicate that traditional taxi industry is faced with deep reform on the profit distribution among the tax drivers,con-sumers,taxi companies and government in order to realize an harmonious structure of taxi services.%通过数学建模方法可知,由于出租车公司和政府部门追求垄断利润,出租车司机和消费者的福利减少,因此,对消费者和司机来说,出租车行业垄断确实是一种伤害。互联网专车服务以低廉的价格和优质的服务,是打破出租车行业垄断的有力工具。从模型分析揭示的结果可知:传统的出租车行业必须对司机、消费者、公司和政府间的利润分配制度进行深层次的改革。只有这样,才能建立一个和谐的出租车服务体系。

  5. Economic Perspectives on Automated Demand Responsive Transportation and Shared Taxi Services - Analytical models and simulations for policy analysis

    OpenAIRE

    Jokinen, Jani-Pekka

    2016-01-01

    The automated demand responsive transportation (DRT) and modern shared taxi services provide shared trips for passengers, adapting dynamically to trip requests by routing a fleet of vehicles operating without any fixed routes or schedules. Compared with traditional public transportation, these new services provide trips without transfers and free passengers from the necessity of using timetables and maps of route networks. Furthermore, automated DRT applies real-time traffic information in ve...

  6. Taxi pooling in New York City: a network-based approach to social sharing problems

    CERN Document Server

    Santi, Paolo; Szell, Michael; Sobolevsky, Stanislav; Strogatz, Steven; Ratti, Carlo

    2013-01-01

    Taxi services are a vital part of urban transportation, and a major contributor to traffic congestion and air pollution causing substantial adverse effects on human health. Sharing taxi trips is a possible way of reducing the negative impact of taxi services on cities, but this comes at the expense of passenger discomfort in terms of a longer travel time. Due to computational challenges, taxi sharing has traditionally been approached on small scales, such as within airport perimeters, or with dynamical ad-hoc heuristics. However, a mathematical framework for the systematic understanding of the tradeoff between collective benefits of sharing and individual passenger discomfort is lacking. Here we introduce the notion of shareability network which allows us to model the collective benefits of sharing as a function of passenger inconvenience, and to efficiently compute optimal sharing strategies on massive datasets. We apply this framework to a dataset of millions of taxi trips taken in New York City, showing th...

  7. International comparison of taxi regulations

    OpenAIRE

    Sytze Rienstra, Peter Bakker, Johan Visser

    2015-01-01

    IntroductionIn 2014, research was conducted to evaluate the changes made in 2011 to the taxi regulations contained in the national Passenger Transport Act 2000. During the course of this research, Uber’s introduction in the taxi market emerged as an increasingly important focal point. In particular, UberPOP – a service connecting customers to private drivers (operating their own vehicles) via a smartphone app – generated much debate. It is in this context that the Directorate General Accessib...

  8. The air pollution of automobile origin among Parisian artisans taxi drivers: perception inquiry and exposure study; La pollution atmospherique d'origine automobile chez les chauffeurs de taxi artisans parisiens: enquete de perception et etude d'exposition

    Energy Technology Data Exchange (ETDEWEB)

    Zagury, E.

    1998-02-11

    The study concerns the impact of the atmospheric pollution of automobile origin in the drivers population. It includes two parts:the first part is an inquiry to 188 Parisian artisans taxi drivers, with a questionnaire. The objective is to determine the behavior about this phenomenon and what perception they have of it. The second part is an exposure study that consists in four pollutants (carbon monoxide, fine particulates in suspension, nitrogen monoxide and nitrogen dioxide). It is in order to reveal the concentrations of these pollutants inside 29 cabs during the professional activity. The taxi drivers complain of headaches, eyes and throat irritations, respiratory difficulties. The results of exposure measurements show 3.8 p.p.m. for carbon monoxide, 168 micrograms/m{sup 3} for the fine particulates in suspension, 625 micrograms for nitrogen monoxide and 139 micrograms/m{sup 3} for nitrogen dioxide. These measures are clearly higher than these ones measured in Parisian ambient air, even higher than these ones of stations that are exposed to the maximum level to automobile effluents. (N.C.)

  9. International Air Services

    OpenAIRE

    Productivity Commission

    2001-01-01

    On 12 December 1997 the Treasurer referred international air services arrangements to the Industry Commission for inquiry and report within nine months. The Commission was asked to report on the arrangements for negotiating entitlements under air services agreements and the process of allocating capacity entitlements to Australian carriers.

  10. 基于车联网的智能打车系统%Intelligent Taxi Service System Based on Internet of Vehicle

    Institute of Scientific and Technical Information of China (English)

    于明鹭; 刘南杰; 赵海涛; 彭江琴

    2016-01-01

    由于出租车的数量管制,以及出租车行业一直没有一个有效的调配系统,导致交通拥塞、时间浪费和耗油量增加。而车联网( Internet Of Vehicle,IOV)的迅速发展,给传统出租车行业带来了新的契机。在该背景下,针对国内出租车行业出现的问题,提出基于车联网中管-云-端架构的智能打车系统。该系统采用新型车载智能终端,功能强大的云平台和实用的客户端应用。从终端信息感知、数据处理到顶层的应用展示来进行模块化功能描述和分析。该系统能显著提高用户满意度、司机积极性和整体运营性能。最后,通过将该智能打车系统应用于现实场景证明了它的价值。结果表明,该系统的服务性能优于现存的多数打车系统。%Taxi number control and inefficient dispatching system lead to many serious problems,such as traffic congestion,time wasting and increase in oil consumption. The rapid development of Internet Of Vehicle ( IOV) brings a golden opportunity to traditional taxi serv-ice systems. In this paper,aiming at the existed problems,propose an intelligent taxi service system based on Carrier-Cloud-Client frame-work of IOV for the first time. Basically,the system employs an advanced intelligent vehicle terminal,a powerful cloud platform and prac-tical client applications. Specifically,a hierarchical model is presented as an architecture to modularize the system,spanning from terminal sensing and data processing to the topmost service presentation. The proposed system can significantly improve customer satisfaction,driv-er enthusiasm and business performance. Finally,the value of the intelligent taxi service system is demonstrated by applying it to some scenarios in the real word. The result shows that this system outperforms most existing taxi service systems with respect to the service quality.

  11. Exposure of bus and taxi drivers to urban air pollutants as measured by DNA and protein adducts

    DEFF Research Database (Denmark)

    Hemminki, K.; Zhang, L.F.; Krüger, J.;

    1994-01-01

    Urinary 1-hydroxypyrene, lymphocyte DNA adducts, serum protein-bound PAH and hemoglobin-bound alkene adducts were analysed from 4 groups of non-smoking men: urban and suburban bus drivers, taxi drivers and suburban controls. The only differences between the groups were in DNA adducts between subu...

  12. Ag-Air Service

    Science.gov (United States)

    1981-01-01

    Econ, Inc.'s agricultural aerial application, "ag-air," involves more than 10,000 aircraft spreading insecticides, herbicides, fertilizer, seed and other materials over millions of acres of farmland. Difficult for an operator to estimate costs accurately and decide what to charge or which airplane can handle which assignment most efficiently. Computerized service was designed to improve business efficiency in choice of aircraft and determination of charge rates based on realistic operating cost data. Each subscriber fills out a detailed form which pertains to his needs and then receives a custom-tailored computer printout best suited to his particular business mix.

  13. 基于位置服务的出租车调度系统的研究与设计%RESEARCH AND DESIGN OF TAXI DISPATCHING SYSTEM BASED ON LOCATION SERVICE

    Institute of Scientific and Technical Information of China (English)

    蔡莉; 梁利刚; 李海

    2014-01-01

    出租车作为城市居民出行的重要辅助交通工具,目前存在空驶率高、营运效率低下、乘客打车难等一系列问题。解决这些问题的关键在于科学合理地调度出租车,有效分配出租车的运能资源。基于位置服务和 Google Maps 等技术,设计一种以乘客为中心的出租车集中式调度算法和一种新的最短路径算法,在此基础上开发相应的智能调度系统。该系统的使用能有效提高出租车行业的运营效率,改善城市环保,解决现有出租车电召业务中所存在的问题。%Taxi is an important paratransit vehicle for urban residents.At present,there are many problems existed in taxi industry,such as high no-passengers travelling rate,low operation efficiency,difficult in taxi calling and so on.The key to solve these problems depends on the scientific taxi dispatching and effective distribution of taxi transport capacity resources.Based on location service and Google Maps technology,we design a passenger-centred centralised taxi dispatching algorithm and the shortest path algorithm,and develop a corresponding smart dispatching system based on it.The application of this system can effectively improve the operation efficiency for taxi industry and improve the urban environmental protection,at the same time it solves some problems existing in phone call business of taxi services.

  14. Regulations on Special Car Reservation Service and Taxi Market%专车服务与出租汽车市场的法律规制

    Institute of Scientific and Technical Information of China (English)

    尹欣; 张长青

    2015-01-01

    多地监管部门针对专车服务所进行的黑车式查处使得中国刚刚兴起的专车服务面临困境,是否应鼓励专车服务成为时下的热点话题。为解决专车服务在中国出租汽车市场所遭遇的身份尴尬问题,综合考虑出租汽车服务的准公共性、专车服务的现实需要以及合规性等因素展开探讨。指出尽管专车服务存在不符合法规的现象,但在中国却拥有广阔的市场发展前景。进而提出对待专车服务所采取的正确措施应该是:通过完善法律法规、适度放松数量管制、适度放松价格管制、加强质量与安全管制等措施,引导、规范不符合法规的专车服务行为,实现专车服务市场的规范化。%Investigations by local supervisory authorities in many cities on unlicensed vehicle providing taxi service have made the emerging special car reservation service face a terrible predicament. Whether to encourage special car reservation service is becoming a hot conversation topic. In order to address the awkward identity problem for special car reservation service in China, this paper discusses the quasi-public nature of taxi service, current need for special car reservation service and its legality. Although special car reservation service does not accord with the existing laws and regulations, it does have a broad market potential in China. Because of this, the paper proposes the practical solutions for special car reservation service: through standardizing the governing laws and regulations to reasonably lessen the control on quantity and price of special car reservation services and to enhance quality control and safety management. All these measurements would help to normalize the special car reservation market.

  15. 城市出租汽车客运服务质量感知差距分析——以杭州市为例%Taxi Service Quality Perception Gaps in Urban Areas: A Case of Hangzhou, China

    Institute of Scientific and Technical Information of China (English)

    姚志刚; 袁球明

    2012-01-01

    将Parasuranman、Zeithaml和Berry(PZB)服务质量差距模型扩展后用于分析出租汽车客运企业管理人员、驾驶员和乘客之间的服务质量感知差距,以杭州市为例进行出租汽车客运服务质量调查,发现驾驶员的服务感知值最高、企业管理人员次之、乘客最低.驾驶员与乘客的感知差距超过企业管理人员与驾驶员的感知差距,且两个差距均与总体服务质量评价显著负相关;企业管理人员与乘客间的感知差距部分显著,且感知差距与总体服务质量评价结果的负相关性不显著.结果表明,出租汽车客运服务人员的服务质量评价过于乐观,改善出租汽车客运服务质量要缩小驾驶员与乘客的服务感知差距.%Three gaps of taxi service quality are added to the Gaps model proposed by Parasuranman, Zeithaml and Berry. The perception gaps of taxi service quality among management staff, driver and passenger are analyzed based on a survey in Hangzhou, China. The most perception scales of drivers are higher than those of management staff and passenger indicate that the service provider always overestimates the service quality. The gaps between drivers and passengers are larger than that between drivers and management staff, and two kinds of gaps have significantly negative impacts on the overall taxi service quality. The gaps between management staff and passengers have partly significant difference and its negative impacts on the overall taxi service quality are not significant. The result indicates that the service provider always overestimates the service quality and gaps between drivers and passengers should be eliminated to improve taxi service quality.

  16. Hailing the bionic taxi

    Energy Technology Data Exchange (ETDEWEB)

    Kelley, T

    1990-02-01

    This article reports on the development and marketing of the GSM, a passenger vehicle capable of running on natural gas. The vehicle is being configured in three arrangements: a commercial/taxi version, a paratransit van, and as a family car. Its body is made of plastic composites which will not rust and its fenders are made from an energy absorbing foam which resumes its original shape after being dented.

  17. Where are the taxis going? : A history of regulatory disruptions

    OpenAIRE

    Darbéra, Richard

    2010-01-01

    1. Everywhere in the world, the taxi is set to play a central role in the future of urban mobility. On the supply side, the revolution in practices brought about by the mobile phone and GPS still have a long way to go in terms of improvements in service and reductions in costs. On the demand side, demographic and lifestyle changes and environmental imperatives are beginning to create certain needs that the taxi is best able to meet at minimum cost. 2. These forces that govern the role of the ...

  18. Het CBb en 'Der digitale Taxi-Krieg'

    NARCIS (Netherlands)

    M. Westerveld

    2015-01-01

    UberPOP, the taxi service company that claims to be based on the concept of shared economy, offering a positive effect on mobility, environment and usage of energy, in reality confronts us with the question whether we are able to protect 'on demand' workers against exploitation and underpayment. The

  19. Validation of an on-board taxi guidance system

    OpenAIRE

    Biella, Marcus

    2010-01-01

    An on-board taxi guidance system with displayed ground traffic and data link to air traffic control was validated in two main studies with 57 commercial airline pilots at DLR’s Institute of Flight Guidance simulation facilities. Following the validation guidelines by EUROCONTROL, results in terms of operational feasibility and operational improvements were gained. In a first step, eye gaze data were analysed to control the effect of increased head down times. In a second step (within the EU p...

  20. Research on the Coordinated Design of Bus and Taxi Station

    Directory of Open Access Journals (Sweden)

    Jiangfeng Xi

    2015-01-01

    Full Text Available Rises in the number of transit buses, bus routes, and overall traffic volume in China’s cities, coupled with interference from other transport modes, such as taxis loading and unloading passengers nearby, have led to increasing traffic delays at bus stops, which is considered one of the factors degrading service levels and traffic operations on urban roadways. This paper studies traffic characteristics at bus stops, investigates variations in delay from different types or designs of bus stops, and analyzes the impact of it on traffic capacity, the purpose of which is to propose a solution to predicting the feasibility of an integrated design of bus stops and taxi stands with the help of mathematical models and based on the objectives of optimal traffic operations and passenger transfer.

  1. Analyzing the Value of Location Information for Four Taxi Dispatching Modes

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    Location-based service (LBS) is often quoted as one of the killer applications of mobile commerce. The LBS, especially the GPS dispatching system, is often adopted by taxi operators for fleet management, but there is no theoretical analysis on the real value of location information for dispatching services. This paper presents four types of dispatching modes and how location information is obtained and used to support dispatching services. Then the Pros and Cons of different taxi dispatching modes were compared. It is concluded that different mode fits different situations, no one overwhelms all situation, even if the GPS-based dispatching mode. The value of the GPS-based dispatching service then was further analyzed through the case study of DaZhong Company in Shanghai, China. The results show that the use of the up-to-date GPS technology radically changes the traditional approaches to taxi dispatching and enables companies to enhance customers'satisfaction.

  2. Exploring Urban Taxi Drivers’ Activity Distribution Based on GPS Data

    Directory of Open Access Journals (Sweden)

    Xiaowei Hu

    2014-01-01

    Full Text Available With the rapid development of information communication technology and data mining technology, we can obtain taxi vehicle’s real time operation status through the large-scale taxi GPS trajectories data and explore the drivers’ activity distribution characteristics. Based on the 204 continuous hours of 3198 taxi vehicles’ operation data of Shenzhen, China, this paper analyzed the urban taxi driver’s activity distribution characteristics from different temporal and spatial levels. In the time level, we identified the difference with taxi daily operation pattern (weekday versus weekends, continuous time in one day, passengers in vehicle time, and taxi drivers’ operation frequency; in the space level, we explored the taxi driver’s searching pattern, including searching activity space distribution and the relationship between the pick-up locations and the drop-off locations. This research can be helpful for urban taxi drivers’ operation and behavior pattern identification, as well as the contribution to the geographical activity space analysis.

  3. Fuel cell hybrid taxi life cycle analysis

    Energy Technology Data Exchange (ETDEWEB)

    Baptista, Patricia, E-mail: patricia.baptista@ist.utl.pt [IDMEC-Instituto Superior Tecnico, Universidade Tecnica de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa (Portugal); Ribau, Joao; Bravo, Joao; Silva, Carla [IDMEC-Instituto Superior Tecnico, Universidade Tecnica de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa (Portugal); Adcock, Paul; Kells, Ashley [Intelligent Energy, Charnwood Building, HolywellPark, Ashby Road, Loughborough, LE11 3GR (United Kingdom)

    2011-09-15

    A small fleet of classic London Taxis (Black cabs) equipped with hydrogen fuel cell power systems is being prepared for demonstration during the 2012 London Olympics. This paper presents a Life Cycle Analysis for these vehicles in terms of energy consumption and CO{sub 2} emissions, focusing on the impacts of alternative vehicle technologies for the Taxi, combining the fuel life cycle (Tank-to-Wheel and Well-to-Tank) and vehicle materials Cradle-to-Grave. An internal combustion engine diesel taxi was used as the reference vehicle for the currently available technology. This is compared to battery and fuel cell vehicle configurations. Accordingly, the following energy pathways are compared: diesel, electricity and hydrogen (derived from natural gas steam reforming). Full Life Cycle Analysis, using the PCO-CENEX drive cycle, (derived from actual London Taxi drive cycles) shows that the fuel cell powered vehicle configurations have lower energy consumption (4.34 MJ/km) and CO{sub 2} emissions (235 g/km) than both the ICE Diesel (9.54 MJ/km and 738 g/km) and the battery electric vehicle (5.81 MJ/km and 269 g/km). - Highlights: > A Life Cycle Analysis of alternative vehicle technologies for the London Taxi was performed. > The hydrogen powered vehicles have the lowest energy consumption and CO{sub 2} emissions results. > A hydrogen powered solution can be a sustainable alternative in a full life cycle framework.

  4. Expanding and Developing the Android Application for a Private Taxi Start-up

    OpenAIRE

    Viala, Adrien

    2013-01-01

    El proyecto de fin de carrera q ue se presenta en este documento se ha realizado en una nueva empresa creada en Julio 2012 y basada en Paris que se llama SnapCar. SnapCar es una aplicación móvil conectada a una red de coches con chofer que van a buscar los clientes para llevarlos donde q uieren, un taxi moderno. Durante años , Paris tenía pocos taxis y se necesitaban más, y aún hoy , la situación es la misma, y con más flexibilidad y mejor calidad de servic...

  5. Assessment of the market for compressed air services

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2001-01-01

    The objective of this report is to provide a comprehensive and balanced view of the market for engineering and consulting services to improve the energy efficiency of plant compressed air systems. The report is intended for use by Compressed Air Challenge and other industrial energy efficiency program operators in developing strategies to encourage the growth of the compressed air system efficiency and enhance the quality of the services it offers.

  6. Cardiovascular Risk Factors of Taxi Drivers.

    Science.gov (United States)

    Elshatarat, Rami Azmi; Burgel, Barbara J

    2016-06-01

    In the United States (U.S.), cardiovascular disease (CVD) is a major leading cause of death. Despite the high mortality rate related to CVD, little is known about CVD risk factors among urban taxi drivers in the U.S. A cross-sectional design was used to identify the predictors of high cardiovascular risk factors among taxi drivers. Convenience sampling method was used to recruit 130 taxi drivers. A structured questionnaire was used to obtain the data. The sample was male (94 %), age mean (45 ± 10.75) years, married (54 %), born outside of the USA (55 %), had some college or below (61.5 %), night drivers (50.8 %), and driving on average 9.7 years and 41 h/week. About 79 % of them were eligible for CVD prevention, and 35.4 % had high CVD risk factors (4-9 risk factors). A CVD high-risk profile had a significant relationship with the subjects who were ≥55 years old; had hypertension, diabetes, or hyperlipidemia; were drinking alcohol ≥2 times/week; and had insufficient physical activity. Subjects who worked as a taxi driver for more than 10 years (OR 4.37; 95 % CI 1.82, 10.50) and had mental exertion from cab driving >5 out of 10 (OR 2.63; 95 % CI 1.05, 6.57) were more likely to have a CVD high-risk profile. As a conclusion, system-level or worksite interventions include offering healthy food at taxi dispatching locations, creating a work culture of frequent walking breaks, and interventions focusing on smoking, physical activity, and weight management. Improving health insurance coverage for this group of workers is recommended. PMID:27151321

  7. Operating a fleet of electric taxis

    OpenAIRE

    Gacias, Bernat; Meunier, Frédéric

    2012-01-01

    The deployment of electric taxi fleets is highly desirable from a sustainable point of view. Nevertheless, the weak autonomy of this kind of vehicles requires a careful operation. The way of managing such a fleet and the question of locating charging terminals for the vehicles are addressed in this paper. Methods for dealing with these tasks are proposed and their efficiency is proved through simulations.

  8. Ergonomic Evaluation on Taxi Drivers Compartment

    Institute of Scientific and Technical Information of China (English)

    Jimmy; SF; Chan; YW; Chui; Reggie; Kwan; K; K; Chau

    2002-01-01

    Driving involves long hours of physical work within c onfined compartment. Taxi drivers usually work with prolonged working hours, add itional stress may likely be induced on particular body limbs. Occupational heal th may occur and working efficiency may potentially be affected resulting fr om fatigues, pains or diseases. These problems, however, could be remedied if mo re attention is paid on seating design, the workplace and driving postures adopt ed. Ergonomics design can provide better understanding...

  9. Emission characteristics of nonmethane hydrocarbons from private cars and taxis at different driving speeds in Hong Kong

    Science.gov (United States)

    Guo, H.; Zou, S. C.; Tsai, W. Y.; Chan, L. Y.; Blake, D. R.

    2011-05-01

    Vehicular emissions are the major sources of a number of air pollutants including nonmethane hydrocarbons (NMHCs) in urban area. The emission composition and emission factors of NMHCs from vehicles are currently lacking in Hong Kong. In this study, speciation and emission factors of NMHCs emitted from gasoline-fuelled private cars and liquefied petroleum gas (LPG)-fuelled taxis at different driving speeds were constructed using a chassis dynamometer. Large variations in the contributions of individual NMHC species to total emission were observed for different private cars at different driving speeds. The variations of individual NMHC emissions were relatively smaller for taxis due to their relatively homogeneous year of manufacture and mileages. Incomplete combustion products like ethane, ethene and propene were the major component of both types of vehicles, while unburned fuel component was also abundant in the exhausts of private cars and taxis (i.e. i-pentane and toluene for private car, and propane and butanes for taxi). Emission factors of major NMHCs emitted from private cars and taxis were estimated. High emission factors of ethane, n-butane, i/ n-pentanes, methylpentanes, trimethylpentanes, ethene, propene, i-butene, benzene, toluene and xylenes were found for private cars, whereas propane and i/ n-butanes had the highest values for taxis. By evaluating the effect of vehicular emissions on the ozone formation potential (OFP), it was found that the contributions of olefinic and aromatic hydrocarbons to OFP were higher than that from paraffinic hydrocarbons for private car, whereas the contributions of propane and i/ n-butanes were the highest for taxis. The total OFP value was higher at lower speeds (≤50 km h -1) for private cars while a minimum value at driving speed of 100 km h -1 was found for taxis. At the steady driving speeds, the total contribution of NMHCs emitted from LPG-fuelled taxis to the OFP was much lower than that from gasoline

  10. Collaborative Outbound Taxi Metering for Environmental Benefits Project

    Data.gov (United States)

    National Aeronautics and Space Administration — This proposal addresses the concept of Collaborative Outbound Taxi Metering (COTM), which provides environmental benefits without sacrificing throughput. In current...

  11. Using the Crowd of Taxis to Last Mile Delivery in E-commerce: a Methodological Research

    OpenAIRE

    Chen, Chao; Pan, Shenle

    2015-01-01

    Crowdsourcing is garnering increased attention in freight transport area, mainly applied in internet-based services to city logistics. However, scientific research, especially methodology for application is still rare in the literature. This paper aims to fill this gap and to propose a methodological approach of applying crowdsourcing solution to Last Mile Delivery in E-commerce environment. The proposed solution is based on taxi fleet in city and a transport network composed by road network ...

  12. Distribution of Total Volatile Organic Compounds at taxi drivers in Tehran

    Directory of Open Access Journals (Sweden)

    Seyyed Mohammad Javad Golhosseini

    2015-06-01

    Full Text Available Air pollution is currently the most serious environmental health threat worldwide. Volatile Organic Compounds (VOC are considered as the main effective factors in causing air pollution. Vehicles are among the major sources which emit these compounds, so it seems that automobiles’ microenvironment is one of the places where people are exposed to high concentration of VOC. Evaluating the exposure amount of Total Volatile Organic Compounds (TVOC can indeed be used as an indicator to estimate the amount of exposure to every individual VOC. This study was conducted on the concentration of TVOC inside Tehran taxies for a period of one year. For this purpose, a real time instrument equipped with photo-ionization detector (PID was used. Consequently, the highest and the lowest measured TVOC in taxies equaled 3.33 ppm and 0.72 ppm, respectively. In addition, the arithmetic mean of TVOC concentration was 1.77±0.53 ppm inside the examined taxies. In this study, the parameters like measurement time, climate and vehicle conditions were found to have significant effect on the amount of exposure to TVOC.

  13. Distribution of Total Volatile Organic Compounds at taxi drivers in Tehran

    Directory of Open Access Journals (Sweden)

    Seyyed Mohammad Javad Golhosseini*

    2015-06-01

    Full Text Available Air pollution is currently the most serious environmental health threat worldwide. Volatile Organic Compounds (VOCs are considered as the main effective factors in causing air pollution. Vehicles are among the major sources which emit these compounds, so it seems that automobiles’ microenvironment is one of the places where people are exposed to high concentration of VOC. Evaluating the exposure amount of Total Volatile Organic Compounds (TVOC can indeed be used as an indicator to estimate the amount of exposure to every individual VOC. This study was conducted on the concentration of TVOC inside Tehran taxies for a period of one year. For this purpose, a real time instrument equipped with photo-ionization detector (PID was used. Consequently, the highest and the lowest measured TVOC in taxies equaled 3.33 ppm and 0.72 ppm, respectively. In addition, the arithmetic mean of TVOC concentration was 1.77±0.53 ppm inside the examined taxies. In this study, the parameters like measurement time, climate and vehicle conditions were found to have significant effect on the amount of exposure to TVOC.

  14. Selecting appropriate Internet advertising type in air transport services,Case Study: Iran Air Airlines (Homa

    Directory of Open Access Journals (Sweden)

    Hamid Zargham Borojeni

    2012-01-01

    Full Text Available This study is looking for selecting the appropriate form of Internet advertising in the air transport services. The model which is used in this research is a combination of structural models of the interactive advertising, interactive advertising model TOORSON Mr. RAGERS, Mr. Kasipo, and Patty probability model complexity and model of how advertising Mr. Vaqn, obtained, is used. The purpose of this study is to select the appropriate form of Internet advertising in the air transport services, (case study: Iran Air. This study is descriptive - survey. For gathering information, a questionnaire was used. The questionnaire included four parts. With applying exploratory data analysis methods (comparison of the relative frequencies according to the results of Sections 2 and 4 of questionnaires, the Internet advertising Skyscraper as the most desirable form of Internet advertising in air transport services is selected.

  15. Selecting appropriate Internet advertising type in air transport services,Case Study: Iran Air Airlines (Homa

    Directory of Open Access Journals (Sweden)

    anna alaei

    2012-12-01

    Full Text Available This study is looking for selecting the appropriate form of Internet advertising in the air transport services. The model which is used in this research is a combination of structural models of the interactive advertising, interactive advertising model TOORSON Mr. RAGERS, Mr. Kasipo, and Patty probability model complexity and model of how advertising Mr. Vaqn, obtained, is used. The purpose of this study is to select the appropriate form of Internet advertising in the air transport services, (case study: Iran Air. This study is descriptive - survey. For gathering information, a questionnaire was used. The questionnaire included four parts. With applying exploratory data analysis methods (comparison of the relative frequencies according to the results of Sections 2 and 4 of questionnaires, the Internet advertising Skyscraper as the most desirable form of Internet advertising in air transport services is selected.

  16. Comparison Of Taxis And Logical Semantic Systems In Indonesian And Malaysian Newspapers About Airasia Qz8501 Accident

    OpenAIRE

    Syahputra, Yudha

    2016-01-01

    This study seeks to describe the comparative portion of taxis and logical semantic systems between Malaysian and Indonesian newspapers’ articles about AirAsia QZ8501 accident. The data are clause complexes in Indonesia naval captain says may have located missing plane tail’s section’s New Straits Times (Text A) and AirAsia tail section located, blackbox still missing’s The Jakarta Post (Text B) articles. This study uses qualitative-descriptive method. As the result, both par...

  17. Modeling of taxi drivers’ experience for routing applications

    Institute of Scientific and Technical Information of China (English)

    SHAW; ShihLung

    2010-01-01

    Taxi drivers drive on the roads every day and become very knowledgeable of the spatiotemporal traffic patterns in a city.It therefore is reasonable to assume that the routes chosen by taxi drivers often work out better than those selected by other drivers.Since dynamic navigation assistance based on real-time traffic information faces limitations such as the spatial coverage of real-time data collection sites,performance of real-time data processing and communications,and accuracy of short-term traffic forecasts in a large urban area,experiences gained by taxi drivers can be a valuable data source for improving the quality of vehicle navigation guidance.This paper develops a vehicle navigation guidance system based on taxis drivers’ knowledge derived from floating car data collected over an extended time period.We then classify road segments based on the spatiotemporal characteristics of taxi tracking data.A case study using taxi tracking data collected in Wuhan,China is presented in this paper to demonstrate the performance of this vehicle navigation system based on taxi tracking data.

  18. Environment and air pollution: health services bequeath to grotesque menace.

    Science.gov (United States)

    Qureshi, Muhammad Imran; Rasli, Amran Md; Awan, Usama; Ma, Jian; Ali, Ghulam; Faridullah; Alam, Arif; Sajjad, Faiza; Zaman, Khalid

    2015-03-01

    The objective of the study is to establish the link between air pollution, fossil fuel energy consumption, industrialization, alternative and nuclear energy, combustible renewable and wastes, urbanization, and resulting impact on health services in Malaysia. The study employed two-stage least square regression technique on the time series data from 1975 to 2012 to possibly minimize the problem of endogeniety in the health services model. The results in general show that air pollution and environmental indicators act as a strong contributor to influence Malaysian health services. Urbanization and nuclear energy consumption both significantly increases the life expectancy in Malaysia, while fertility rate decreases along with the increasing urbanization in a country. Fossil fuel energy consumption and industrialization both have an indirect relationship with the infant mortality rate, whereas, carbon dioxide emissions have a direct relationship with the sanitation facility in a country. The results conclude that balancing the air pollution, environment, and health services needs strong policy vistas on the end of the government officials. PMID:25242593

  19. Environment and air pollution: health services bequeath to grotesque menace.

    Science.gov (United States)

    Qureshi, Muhammad Imran; Rasli, Amran Md; Awan, Usama; Ma, Jian; Ali, Ghulam; Faridullah; Alam, Arif; Sajjad, Faiza; Zaman, Khalid

    2015-03-01

    The objective of the study is to establish the link between air pollution, fossil fuel energy consumption, industrialization, alternative and nuclear energy, combustible renewable and wastes, urbanization, and resulting impact on health services in Malaysia. The study employed two-stage least square regression technique on the time series data from 1975 to 2012 to possibly minimize the problem of endogeniety in the health services model. The results in general show that air pollution and environmental indicators act as a strong contributor to influence Malaysian health services. Urbanization and nuclear energy consumption both significantly increases the life expectancy in Malaysia, while fertility rate decreases along with the increasing urbanization in a country. Fossil fuel energy consumption and industrialization both have an indirect relationship with the infant mortality rate, whereas, carbon dioxide emissions have a direct relationship with the sanitation facility in a country. The results conclude that balancing the air pollution, environment, and health services needs strong policy vistas on the end of the government officials.

  20. Disability and motorcycle taxi drivers in Cartagena, Colombia

    OpenAIRE

    Yaneth Herazo B; Regina Domínguez A; Sandra Olarte B; Liliseth Quitian C

    2011-01-01

    Objective: to estimate the functional dependency as a measure of disability in a group of motorcycle taxi drivers from Cartagena, Colombia. Methods: a retrospective descriptive study in which researchers reviewed 1123 files of motorcycle taxi drivers involved in traffic accidents in Cartagena during 2006. The level of functional dependence regarding performance of some basic activities of daily life was determined for 262 subjects using the Barthel scale. Furthermore, data analysis was carr...

  1. Air Freight Service Development Plan : Case: CMA CGM Logistics Vietnam

    OpenAIRE

    Nguyen, Giang

    2014-01-01

    Being one of the fastest-growing nations in the world, Vietnam is trading across the border actively and at the same time attracting multiple foreign investments. Import and export activities are occurring vigorously which leads to a huge potential for international transportation sectors, particularly for aviation industry. Hence, the ultimate goal of this thesis is to establish a development plan of air freight service for the case company – CMA CGM Logistics Vietnam (CCLOG VN). The stu...

  2. [Comparative life cycle environmental assessment between electric taxi and gasoline taxi in Beijing].

    Science.gov (United States)

    Shi, Xiao-Qing; Sun, Zhao-Xin; Li, Xiao-Nuo; Li, Jin-Xiang; Yang, Jian-Xin

    2015-03-01

    Tailpipe emission of internal combustion engine vehicle (ICEV) is one of the main sources leading to atmospheric environmental problems such as haze. Substituting electric vehicles for conventional gasoline vehicles is an important solution for reducing urban air pollution. In 2011, as a pilot city of electric vehicle, Beijing launched a promotion plan of electric vehicle. In order to compare the environmental impacts between Midi electric vehicle (Midi EV) and Hyundai gasoline taxi (ICEV), this study created an inventory with local data and well-reasoned assumptions, and contributed a life cycle assessment (LCA) model with GaBi4.4 software and comparative life cycle environmental assessment by Life cycle impact analysis models of CML2001(Problem oriented) and EI99 (Damage oriented), which included the environmental impacts of full life cycle, manufacture phase, use phase and end of life. The sensitivity analysis of lifetime mileage and power structure was also provided. The results indicated that the full life cycle environmental impact of Midi EV was smaller than Hyundai ICEV, which was mainly due to the lower fossil fuel consumption. On the contrary, Midi EV exhibited the potential of increasing the environmental impacts of ecosystem quality influence and Human health influence. By CML2001 model, the results indicated that Midi EV might decrease the impact of Abiotic Depletion Potential, Global Warming Potential, Ozone Layer Depletion Potential and so on. However, in the production phase, the impact of Abiotic Depletion Potential, Acidification Potential, Eutrophication Potential, Global Warming Potential, Photochemical Ozone Creation Potential, Ozone Layer Depletion Potential, Marine Aquatic Ecotoxicity Potential, Terrestric Ecotoxicity Potential, Human Toxicity Potential of Midi EV were increased relative to Hyundai ICEV because of emissions impacts from its power system especially the battery production. Besides, in the use phase, electricity production was

  3. pH-Taxis of Biohybrid Microsystems

    Science.gov (United States)

    Zhuang, Jiang; Wright Carlsen, Rika; Sitti, Metin

    2015-06-01

    The last decade has seen an increasing number of studies developing bacteria and other cell-integrated biohybrid microsystems. However, the highly stochastic motion of these microsystems severely limits their potential use. Here, we present a method that exploits the pH sensing of flagellated bacteria to realize robust drift control of multi-bacteria propelled microrobots. Under three specifically configured pH gradients, we demonstrate that the microrobots exhibit both unidirectional and bidirectional pH-tactic behaviors, which are also observed in free-swimming bacteria. From trajectory analysis, we find that the swimming direction and speed biases are two major factors that contribute to their tactic drift motion. The motion analysis of microrobots also sheds light on the propulsion dynamics of the flagellated bacteria as bioactuators. It is expected that similar driving mechanisms are shared among pH-taxis, chemotaxis, and thermotaxis. By identifying the mechanism that drives the tactic behavior of bacteria-propelled microsystems, this study opens up an avenue towards improving the control of biohybrid microsystems. Furthermore, assuming that it is possible to tune the preferred pH of bioactuators by genetic engineering, these biohybrid microsystems could potentially be applied to sense the pH gradient induced by cancerous cells in stagnant fluids inside human body and realize targeted drug delivery.

  4. Uncovering urban human mobility from large scale taxi GPS data

    Science.gov (United States)

    Tang, Jinjun; Liu, Fang; Wang, Yinhai; Wang, Hua

    2015-11-01

    Taxi GPS trajectories data contain massive spatial and temporal information of urban human activity and mobility. Taking taxi as mobile sensors, the information derived from taxi trips benefits the city and transportation planning. The original data used in study are collected from more than 1100 taxi drivers in Harbin city. We firstly divide the city area into 400 different transportation districts and analyze the origin and destination distribution in urban area on weekday and weekend. The Density-Based Spatial Clustering of Applications with Noise (DBSCAN) algorithm is used to cluster pick-up and drop-off locations. Furthermore, four spatial interaction models are calibrated and compared based on trajectories in shopping center of Harbin city to study the pick-up location searching behavior. By extracting taxi trips from GPS data, travel distance, time and average speed in occupied and non-occupied status are then used to investigate human mobility. Finally, we use observed OD matrix of center area in Harbin city to model the traffic distribution patterns based on entropy-maximizing method, and the estimation performance verify its effectiveness in case study.

  5. Mining spatiotemporal patterns of urban dwellers from taxi trajectory data

    Science.gov (United States)

    Mao, Feng; Ji, Minhe; Liu, Ting

    2016-06-01

    With the widespread adoption of locationaware technology, obtaining long-sequence, massive and high-accuracy spatiotemporal trajectory data of individuals has become increasingly popular in various geographic studies. Trajectory data of taxis, one of the most widely used inner-city travel modes, contain rich information about both road network traffic and travel behavior of passengers. Such data can be used to study the microscopic activity patterns of individuals as well as the macro system of urban spatial structures. This paper focuses on trajectories obtained from GPS-enabled taxis and their applications for mining urban commuting patterns. A novel approach is proposed to discover spatiotemporal patterns of household travel from the taxi trajectory dataset with a large number of point locations. The approach involves three critical steps: spatial clustering of taxi origin-destination (OD) based on urban traffic grids to discover potentially meaningful places, identifying threshold values from statistics of the OD clusters to extract urban jobs-housing structures, and visualization of analytic results to understand the spatial distribution and temporal trends of the revealed urban structures and implied household commuting behavior. A case study with a taxi trajectory dataset in Shanghai, China is presented to demonstrate and evaluate the proposed method.

  6. GIS-BASED TAXI DISPATCHING ALGORITHM%基于GIS的出租车调度算法

    Institute of Scientific and Technical Information of China (English)

    侯燕; 张锦华

    2015-01-01

    With the popularity of geographic information system (GIS ) and smart mobile terminals,more and more GIS-based taxi dispatching system and taxi-calling software are presented,they all aim at reasonably planning the delivery of taxi’s capacity,reducing the mileage of empty taxi running and the resource waste,so as to make passengers enjoy high quality services.However,since the lack of reasonable taxi dispatching algorithms,existing taxi dispatching systems cause huge waste to the society resources.To solve this problem,in the paper,through GIS modelling we extract passengers as the label points of GIS,and then search the empty taxis nearby through fast attribution algorithm of label points and send out the service calling messages to leisure taxis in vicinity.After answering the service calling from passengers,the taxis will select reasonable routes by using shortest path algorithm of urban road network and go to the locations of the passengers and transport them from departure sites to their destinations,thereby the taxis resource is utilised effectively and reasonably.In end of the paper,the timeliness property and feasibility of the algorithm are verified through simulation experiments.%随着地理信息系统(GIS)与智能移动终端的普及,越来越多的基于GIS的出租车调度系统和打车软件被提出来,为合理规划出租车运力的投放、减少空车行驶的里程和资源的浪费,以使得乘客享受高品质的服务。而在现有的出租车调度系统中,由于缺乏合理的车辆调度算法,给社会资源带来了巨大的浪费。针对这种问题,通过GIS建模,将乘客抽象为GIS中的内点,然后通过内点快速归属算法查找附近的空车,并向附近空闲的出租车发出叫车服务。出租车在响应了用户的叫车服务后,使用城市道路网最短路径算法选择合理的路线前往乘客所在地以及将用户从出发点送往目的地,从而有效合理地利

  7. 关于加强打车软件综合管理的建议%Integrated Management of Taxi Booking Apps

    Institute of Scientific and Technical Information of China (English)

    汪光焘; 肖晓俊; 谭永朝; 齐彤岩; 陈小鸿; 殷广涛; 黎晴; 陆锡明; 刘明姝; 郭继孚; 安健

    2014-01-01

    中国打车软件从2012年开始上线,“嘀嘀打车”和“快的打车”通过“双向补贴”方式竞争客户,一度导致全国范围主要城市出租汽车运营秩序混乱,引起社会广泛争议。对打车软件涉及的金融系统安全、出租汽车运营秩序、群体性事件等问题展开分析。总结国内外打车软件的主要区别,指出中国打车软件的管理更为复杂、更容易引起社会矛盾。最后,建议在国家层面提出指导性意见,着重研究网络金融进入公共服务业的规则、现代信息技术服务于出租汽车营运的管理规则,以及出租汽车行业管理中政府和企业的权责界限。%Taxi booking apps were launched in China in 2012. “Didi Taxi” and “KuaiDi” compete for customers through subsidies for taxi drivers and passengers, which led to the chaos in taxi operation in major cities and caused widespread controversy. For better problem solutions, this paper discusses the is-sues involved in taxi booking apps such as the payment security system, taxi operation, mass disturbance, and etc. By summarizing the main differences of taxi booking apps between China and other countries, the paper points out that managing taxi apps in China is very complicated, which can easily trigger some social conflicts. Finally, the paper suggests the development of national guidelines with focus on the regulations on e-finance network in the public services, information technology management rules for taxi operation, and responsibility/liabilities of governments and enterprises in the taxi industry management.

  8. Diretrizes para identificação e análise de fontes de resiliência e fragilidades: estudo de caso em duas empresas de táxi-aéreo A framework for identifying and analyzing sources of resilience and brittleness: a case study of two air taxi carriers

    Directory of Open Access Journals (Sweden)

    Guido César Carim Junior

    2013-01-01

    Full Text Available O crescente interesse pela engenharia de resiliência (ER como um paradigma para a gestão da segurança em sistemas sociotécnicos complexos tem demandado métodos para que sejam realizadas avaliações sob essa perspectiva. Nesse contexto, o presente artigo apresenta diretrizes para identificar e analisar fontes de resiliência (FR e fontes de fragilidades (FF com impacto na segurança das operações. Inicialmente deve ser realizada uma descrição do sistema sociotécnico, explicitando as práticas informais que garantem a manutenção da sua operação. Em seguida deve ser elaborado e aplicado um protocolo para avaliar o uso de quatro princípios da ER. Uma vez identificadas, as fontes devem ser analisadas segundo cinco categorias: FR ou FF oposta; risco da FF; eficácia da FR; origem interna ou externa; origem formal ou informal. Um estudo de caso em duas empresas de táxi-aéreo ilustra a aplicação das diretrizes, salientando suas limitações, benefícios teóricos e práticos.The increasing interest in resilience engineering (RE as a safety management paradigm for complex systems has demanded methods for undertaking safety assessments from its perspective. Thus, this article introduces a framework for identifying and analyzing sources of resilience (SR and sources of brittleness (SB that have an impact on safety. Firstly, a description of the socio-technical system should be performed, giving visibility to the informal practices that maintain the system operational. Next, a protocol to assess the use of four RE principles should be designed and applied. Based on the data generated in the previous stages, the sources might be identified and analyzed across five categories: the opposite SR or SB; the risk of the SB; the effectiveness of the SR; either originated from internal processes or external environment; either originated from formal or informal practices. A case study of two air taxi carriers illustrates the application of the

  9. US EPA 2012 Air Quality Fused Surface for the Conterminous U.S. Map Service

    Data.gov (United States)

    U.S. Environmental Protection Agency — This web service contains a polygon layer that depicts fused air quality predictions for 2012 for census tracts in the conterminous United States. Fused air quality...

  10. Applicative Research on Psychological Demand of Audience and the TAXI for People

    Directory of Open Access Journals (Sweden)

    Zhang Caixia

    2015-01-01

    Full Text Available Whether TAXI for People from Beijing traffic channel, the only special program customized for taxi driver in Beijing, knows about the psychological feature of the certain taxi group is an important factor that affects the development of program. Based on demand theory of psychology, this article uses the questionnaire method to find out the psychological feature and lifestyle of audience, and discusses the degree to the TAXI for People which meets the psychological demand of taxi driver audience by analysis on the program content. It is said from the research that the TAXI for People basically meets the psychological demand from taxi drivers. However, this program shall focus more on their basic needs and provide the opportunity for the audience to participate in the program and activity.

  11. On the Design of Simulation System of Intelligent City Taxi Call

    Directory of Open Access Journals (Sweden)

    Xudong Zhu

    2013-06-01

    Full Text Available The city taxi system is characterized as inconvenience information interaction with passengers and regional imbalance. With the development of wireless network technology, VANET can realize the real-time information interaction between taxi and passengers. Thus to conduct reasonable taxi scheduling and improve the efficiency of the taxi system. In order to validate the effectiveness of intelligent call system of city taxi which adopts the wireless network technology, this study provides a taxi control simulation system based on the wireless network, thus to analyze the behavior of vehicles and passengers. The results show that the real-time taxi call system and intelligent scheduling by using the wireless network technology can effectively reduce the not-taken rate and the average waiting time of passengers.

  12. 77 FR 20789 - Work Group on Measuring Systems for Taxis

    Science.gov (United States)

    2012-04-06

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF COMMERCE National Institute of Standards and Technology Work Group on Measuring Systems for Taxis AGENCY: National... Standards and Technology (NIST) is forming a Work Group (WG) to develop proposals to revise the...

  13. EPA Facility Registry Service (FRS): AIRS_AFS Sub Facilities

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Air Facility System (AFS) contains compliance and permit data for stationary sources regulated by EPA, state and local air pollution agencies. The sub facility...

  14. Talent in the taxi: a model system for exploring expertise

    Science.gov (United States)

    Woollett, Katherine; Spiers, Hugo J.; Maguire, Eleanor A.

    2009-01-01

    While there is widespread interest in and admiration of individuals with exceptional talents, surprisingly little is known about the cognitive and neural mechanisms underpinning talent, and indeed how talent relates to expertise. Because many talents are first identified and nurtured in childhood, it can be difficult to determine whether talent is innate, can be acquired through extensive practice or can only be acquired in the presence of the developing brain. We sought to address some of these issues by studying healthy adults who acquired expertise in adulthood. We focused on the domain of memory and used licensed London taxi drivers as a model system. Taxi drivers have to learn the layout of 25 000 streets in London and the locations of thousands of places of interest, and pass stringent examinations in order to obtain an operating licence. Using neuropsychological assessment and structural and functional magnetic resonance imaging, we addressed a range of key questions: in the context of a fully developed brain and an average IQ, can people acquire expertise to an exceptional level; what are the neural signatures, both structural and functional, associated with the use of expertise; does expertise change the brain compared with unskilled control participants; does it confer any cognitive advantages, and similarly, does it come at a cost to other functions? By studying retired taxi drivers, we also consider what happens to their brains and behaviour when experts stop using their skill. Finally, we discuss how the expertise of taxi drivers might relate to the issue of talent and innate abilities. We suggest that exploring talent and expertise in this manner could have implications for education, rehabilitation of patients with cognitive impairments, understanding individual differences and possibly conditions such as autism where exceptional abilities can be a feature. PMID:19528024

  15. Fuel Consumption and Emissions from Airport Taxi Operations

    Science.gov (United States)

    Jung, Yoon

    2010-01-01

    Developed a method to calculate fuel consumption and emissions of phases of taxi operations. Results at DFW showed that up to 18% of fuel can be saved by eliminating stop-and-go situations. Developed an energy efficient and environmentally friendly surface concept: Spot and Runway Departure Advisory (SARDA) tool. The SARDA tool has been identified as a potential candidate for a technology transfer to the FAA.

  16. Detecting Traffic Anomalies in Urban Areas Using Taxi GPS Data

    Directory of Open Access Journals (Sweden)

    Weiming Kuang

    2015-01-01

    Full Text Available Large-scale GPS data contain hidden information and provide us with the opportunity to discover knowledge that may be useful for transportation systems using advanced data mining techniques. In major metropolitan cities, many taxicabs are equipped with GPS devices. Because taxies operate continuously for nearly 24 hours per day, they can be used as reliable sensors for the perceived traffic state. In this paper, the entire city was divided into subregions by roads, and taxi GPS data were transformed into traffic flow data to build a traffic flow matrix. In addition, a highly efficient anomaly detection method was proposed based on wavelet transform and PCA (principal component analysis for detecting anomalous traffic events in urban regions. The traffic anomaly is considered to occur in a subregion when the values of the corresponding indicators deviate significantly from the expected values. This method was evaluated using a GPS dataset that was generated by more than 15,000 taxies over a period of half a year in Harbin, China. The results show that this detection method is effective and efficient.

  17. 76 FR 55347 - Aerospace Executive Service Trade Mission at Singapore Air Show

    Science.gov (United States)

    2011-09-07

    ... International Trade Administration Aerospace Executive Service Trade Mission at Singapore Air Show AGENCY... organizing an Aerospace Executive Service Trade Mission (AESTM) to Singapore in conjunction with the... from a variety of U.S. aerospace-industry manufacturers and service providers. The mission...

  18. A Mixed Integer Linear Program for Solving a Multiple Route Taxi Scheduling Problem

    Science.gov (United States)

    Montoya, Justin Vincent; Wood, Zachary Paul; Rathinam, Sivakumar; Malik, Waqar Ahmad

    2010-01-01

    Aircraft movements on taxiways at busy airports often create bottlenecks. This paper introduces a mixed integer linear program to solve a Multiple Route Aircraft Taxi Scheduling Problem. The outputs of the model are in the form of optimal taxi schedules, which include routing decisions for taxiing aircraft. The model extends an existing single route formulation to include routing decisions. An efficient comparison framework compares the multi-route formulation and the single route formulation. The multi-route model is exercised for east side airport surface traffic at Dallas/Fort Worth International Airport to determine if any arrival taxi time savings can be achieved by allowing arrivals to have two taxi routes: a route that crosses an active departure runway and a perimeter route that avoids the crossing. Results indicate that the multi-route formulation yields reduced arrival taxi times over the single route formulation only when a perimeter taxiway is used. In conditions where the departure aircraft are given an optimal and fixed takeoff sequence, accumulative arrival taxi time savings in the multi-route formulation can be as high as 3.6 hours more than the single route formulation. If the departure sequence is not optimal, the multi-route formulation results in less taxi time savings made over the single route formulation, but the average arrival taxi time is significantly decreased.

  19. EPA Facility Registry Service (FRS): AIRS_AQS

    Data.gov (United States)

    U.S. Environmental Protection Agency — This web feature service contains location and facility identification information from EPA's Facility Registry Service (FRS) for the subset of facilities that link...

  20. EPA Facility Registry Service (FRS): AIRS_AFS

    Data.gov (United States)

    U.S. Environmental Protection Agency — This web feature service contains location and facility identification information from EPA's Facility Registry Service (FRS) for the subset of facilities that link...

  1. EPA Facility Registry Service (FRS): AIRS_AFS_MAJOR

    Data.gov (United States)

    U.S. Environmental Protection Agency — This web feature service contains location and facility identification information from EPA's Facility Registry Service (FRS) for the subset of facilities that link...

  2. Calidad del servicio de taxis del municipio Maracaibo

    Directory of Open Access Journals (Sweden)

    Joheni A. Urdaneta G.

    2011-05-01

    Full Text Available El presente trabajo tiene como objetivo describir la calidad del servicio de los taxis en el municipio Maracaibo, ya que los mismos forman parte del sistema de transporte urbano de la ciudad, y es un servicio público fundamental para la convivencia de la sociedad; para lograr este objetivo se realizó una adaptación del modelo SERVPERF, diseñando un instrumento tipo cuestionario, con 32 ítems en 6 dimensiones, adecuado a las características propias del servicio de taxi, con la finalidad de confirmar que los ítems de los instrumentos se correspondían con las dimensiones adaptadas se aplicó la técnica de análisis factorial resultando un nuevo instrumento con 24 ítems en 3 dimensiones. Se utilizó la escala de Likert con tres (3 alternativas de respuesta. La investigación es de tipo descriptiva y aplicada, bajo diseño no experimental de tipo transeccional descriptiva y de campo. La población quedó conformada por los usuarios de las líneas de taxis del municipio Maracaibo. Se aplicó muestreo aleatorio por conglomerado. La confiabilidad del instrumento se midió a través del coeficiente alfa de Cronbach resultando de 0,82 lo cual se considera aceptable. Los resultados revelan que la calidad del servicio de taxis del municipio Maracaibo es mediana por lo tanto este servicio es susceptible a mejoras, las cuales son necesarias para elevar la calidad de vida de los marabinos. Este resultado se obtuvo con el instrumento originalmente adaptado de 32 ítems y con el cuestionario resultante del análisis factorial, de 24 ítems; esto confirma lo apropiado de esta técnica, ya que se redujo el número de ítems y de las dimensiones originalmente adaptadas y no se encontraron diferencias significativas en los resultados con ambos instrumentos; de esta manera se puede medir la calidad del servicio de taxis en el municipio Maracaibo a través de las dimensiones: confiabilidad del servicio, socialización y responsabilidad.

  3. Factors associated with crashes involving taxi owners and non-owners: A case of moral hazard and adverse selection?

    Science.gov (United States)

    Tay, Richard; Choi, Jaisung

    2016-02-01

    Taxis experience a higher risk of a motor vehicle crash partly because of their much higher levels of exposure on the roads. Although several studies have been conducted to examine the factors associated with the frequency and severity of taxi collisions, little research has been conducted to examine the differences in the factors associated with owner taxis and non-owner taxis. This study finds that collisions involving non-owners are more likely to be associated with poor or risky driving behaviors than collisions involving taxi vehicle owners. This result is consistent with the economic principles of moral hazard and adverse selection. Hence, policy makers responsible for traffic safety, taxi regulation or taxi operations should consider measures to reduce these market inefficiencies and improve the safety of not only taxi drivers but all road users.

  4. Factors associated with crashes involving taxi owners and non-owners: A case of moral hazard and adverse selection?

    Science.gov (United States)

    Tay, Richard; Choi, Jaisung

    2016-02-01

    Taxis experience a higher risk of a motor vehicle crash partly because of their much higher levels of exposure on the roads. Although several studies have been conducted to examine the factors associated with the frequency and severity of taxi collisions, little research has been conducted to examine the differences in the factors associated with owner taxis and non-owner taxis. This study finds that collisions involving non-owners are more likely to be associated with poor or risky driving behaviors than collisions involving taxi vehicle owners. This result is consistent with the economic principles of moral hazard and adverse selection. Hence, policy makers responsible for traffic safety, taxi regulation or taxi operations should consider measures to reduce these market inefficiencies and improve the safety of not only taxi drivers but all road users. PMID:26655521

  5. 72-Hour Forecast of Air Temperatures from the National Weather Service's National Digital Forecast Database (NDFD)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The National Digital Forecast Database (NDFD) contains a seamless mosaic of the National Weather Service's (NWS) digital forecasts of air temperature. In...

  6. 24-Hour Forecast of Air Temperatures from the National Weather Service's National Digital Forecast Database (NDFD)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The National Digital Forecast Database (NDFD) contains a seamless mosaic of the National Weather Service's (NWS) digital forecasts of air temperature. In...

  7. Utilising excess minibus-taxi capacity for South African townships tours

    NARCIS (Netherlands)

    Rietjens, Sebastiaan; Makoriwa, Collins; Boer, de Sirp

    2006-01-01

    This paper proposes an option for the utilisation of excess off-peak capacity of minibus-taxis in South Africa for township tours. The minibus-taxi system typically faces steep peak loads during rush hours with excess vehicle and person capacity available during off-hours. The advantages of the prop

  8. Measurement of cellular chemotaxis with ECIS/Taxis.

    Science.gov (United States)

    Pietrosimone, Kathryn M; Yin, Xiuyin; Knecht, David A; Lynes, Michael A

    2012-01-01

    Cellular movement in response to external stimuli is fundamental to many cellular processes including wound healing, inflammation and the response to infection. A common method to measure chemotaxis is the Boyden chamber assay, in which cells and chemoattractant are separated by a porous membrane. As cells migrate through the membrane toward the chemoattractant, they adhere to the underside of the membrane, or fall into the underlying media, and are subsequently stained and visually counted (1). In this method, cells are exposed to a steep and transient chemoattractant gradient, which is thought to be a poor representation of gradients found in tissues (2). Another assay system, the under-agarose chemotaxis assay, (3, 4) measures cell movement across a solid substrate in a thin aqueous film that forms under the agarose layer. The gradient that develops in the agarose is shallow and is thought to be an appropriate representation of naturally occurring gradients. Chemotaxis can be evaluated by microscopic imaging of the distance traveled. Both the Boyden chamber assay and the under-agarose assay are usually configured as endpoint assays. The automated ECIS/Taxis system combines the under-agarose approach with Electric Cell-substrate Impedance Sensing (ECIS) (5, 6). In this assay, target electrodes are located in each of 8 chambers. A large counter-electrode runs through each of the 8 chambers (Figure 2). Each chamber is filled with agarose and two small wells are the cut in the agarose on either side of the target electrode. One well is filled with the test cell population, while the other holds the sources of diffusing chemoattractant (Figure 3). Current passed through the system can be used to determine the change in resistance that occurs as cells pass over the target electrode. Cells on the target electrode increase the resistance of the system (6). In addition, rapid fluctuations in the resistance represent changes in the interactions of cells with the electrode

  9. The liver taxis of receptor mediated lactosaminated human growth hormone

    International Nuclear Information System (INIS)

    Radiography imaging is used to assess liver taxis mechanism of anti-dwarfism drug lactosaminated human growth hormone (L-rhGH). Both L-rhGH and rhGH labelled with 131I are used to study their biodistribution in animals (including rabbits, cocks and rats). The results show that L-rhGH is of specific hepatic targeting property, and the maximum hepatic concentration rate is 76.8%, which is two times of rhGH. Its hepatic binding is receptor mediated

  10. Impacts of Shared Autonomous Taxis in a Metropolitan Area

    OpenAIRE

    Burghout, Wilco; Rigole, Pierre Jean; Andreasson, Ingmar

    2015-01-01

    The purpose of this paper is to provide an analysis of potential benefits of a fleet of shared autonomous taxis “aTaxis”, in this paper referred to as Shared Autonomous Vehicles  (SAV)) when replacing private car commuter trips in a metropolitan area. We develop a framework for dynamic allocation of SAVs to passenger trips, empty-vehicle routing and multi-criteria evaluation with regard to passenger waiting time, trip times and fleet size. Using a dynamic representation of current private veh...

  11. Three-wheeled scooter taxi: A safety analysis

    Indian Academy of Sciences (India)

    S Mukherjee; D Mohan; T R Gawade

    2007-08-01

    The rollover propensity of a three-wheeled scooter taxi used extensively on SE Asian roads is analysed in this report. A rigid body mathematical model was used to simulate increasing steer, NHTSA -turn, and Road Edge Recovery maneuvers. The anomaly between public perception of the rollover susceptibility and available crash data has been resolved through finite element (FE) simulation. The optimum configuration of the vehicle and seating arrangement for varying numbers of passengers was determined. The safety of occupants and pedestrians in impact events was analysed through simulation in MADYMOTM, and cost effective solutions to improve safety were identified.

  12. Aeronautical mobile satellite service: Air traffic control applications

    Science.gov (United States)

    Sim, Dave

    1990-01-01

    Canada's history both in aviation and in satellite communications development spans several decades. The introduction of aeronautical mobile satellite communications will serve our requirements for airspace management in areas not served by line-of-sight radio and radar facilities. The ensuing improvements in air safety and operating efficiency are eagerly awaited by the aviation community.

  13. 14 CFR 272.6 - Considerations in the determination of essential air service.

    Science.gov (United States)

    2010-01-01

    ... TRANSPORTATION (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS ESSENTIAL AIR SERVICE TO THE FREELY ASSOCIATED STATES... other factors, the following: (1) The demonstrated level of traffic demand; (2) The amount of compensation necessary to maintain a level of service sufficient to meet that demand; (3) The extent to...

  14. A Correlational Study of How Airline Customer Service and Consumer Perception of Airline Customer Service Affect the Air Rage Phenomenon

    Science.gov (United States)

    Hunter, Joyce A.

    2007-01-01

    Between 1995 and 2000, customer service declined throughout the airline industry, as reported in February 2001 by the U.S. Department of Transportation (2001). One of the biggest problems today within the airline industry is the constant complaining from customers regarding the deterioraton of service (McCollough, Berry, & Yadav, 2000). Since 1995, unfortunately no airline has been immune from service deterioration, as reported by the Airline Quality Rating, an annual report by two airline industry experts who analyzed Department of Transportation statistics (Harrison & Kleinsasser, 1999). The airline' refusal to recognize the issue of customer service has perpetuated an environment that has become dangerous and detrimental to the traveling public as well as to airline employees, which in turn has fueled a new phenomenon, now referred to as "air rage".

  15. Pili-taxis: Clustering of Neisseria gonorrhoeae bacteria

    Science.gov (United States)

    Taktikos, Johannes; Zaburdaev, Vasily; Biais, Nicolas; Stark, Holger; Weitz, David A.

    2012-02-01

    The first step of colonization of Neisseria gonorrhoeae bacteria, the etiological agent of gonorrhea, is the attachment to human epithelial cells. The attachment of N. gonorrhoeae bacteria to surfaces or other cells is primarily mediated by filamentous appendages, called type IV pili (Tfp). Cycles of elongation and retraction of Tfp are responsible for a common bacterial motility called twitching motility which allows the bacteria to crawl over surfaces. Experimentally, N. gonorrhoeae cells initially dispersed over a surface agglomerate into round microcolonies within hours. It is so far not known whether this clustering is driven entirely by the Tfp dynamics or if chemotactic interactions are needed. Thus, we investigate whether the agglomeration may stem solely from the pili-mediated attraction between cells. By developing a statistical model for pili-taxis, we try to explain the experimental measurements of the time evolution of the mean cluster size, number of clusters, and area fraction covered by the cells.

  16. Increasing influenza vaccination in New York City taxi drivers: A community driven approach.

    Science.gov (United States)

    Gany, Francesca; Rau-Murthy, Rohini; Mujawar, Imran

    2015-05-21

    The Healthy People 2020 influenza immunization goal is 80% for non-institutionalized adults 18-64. However, vaccination rates remain stubbornly low. Culturally tailored approaches to communities with poor vaccine uptake are necessary. Taxi drivers are at risk for influenza and its complications, could serve as vectors for influenza infection, and could be an effective vaccination target to enhance herd immunity of the urban population. To the best of our knowledge, this is the first study related to influenza vaccination among taxi drivers. The NYC Taxi Network surveyed a convenience sample of 53 taxi drivers to understand vaccination barriers. Only 17% had been vaccinated. Results informed a pilot tailored workplace intervention, which resulted in vaccinations for 44% of unvaccinated drivers. The study revealed that older drivers were more likely to be vaccinated than younger drivers, while the most common barrier to immunization was that drivers thought vaccination was 'not necessary'.

  17. Conserved Residues in the HAMP Domain Define a New Family of Proposed Bipartite Energy Taxis Receptors▿

    OpenAIRE

    Elliott, Kathryn T; Igor B Zhulin; Stuckey, Jeanne A.; DiRita, Victor J.

    2008-01-01

    HAMP domains, found in many bacterial signal transduction proteins, generally transmit an intramolecular signal between an extracellular sensory domain and an intracellular signaling domain. Studies of HAMP domains in proteins where both the input and output signals occur intracellularly are limited to those of the Aer energy taxis receptor of Escherichia coli, which has both a HAMP domain and a sensory PAS domain. Campylobacter jejuni has an energy taxis system consisting of the domains of A...

  18. Organizing in the informal economy : a case study of the minibus taxi industry in South Africa

    OpenAIRE

    Barrett, Jane

    2003-01-01

    Provides an overview of the minibus taxi industry in South Africa and outlines the process of formalization that the industry has undergone since the mid-1990s. Investigates conditions of employment and examines the strategies of the South African National Taxi Council (SANTACO) and the South African Transport and Allied Worker's Union (SATAWU) in organizing and catering for informal workers and owners in the industry.

  19. High-efficiency particulate air (HEPA) filter performance following service and radiation exposure

    International Nuclear Information System (INIS)

    Small HEPA filters were exposed to a 60Co source with a radiation strength of 3 x 107 rads per hour and then exposed to steam--air mixtures at several times filter design flow, followed by extended exposure to steam and air at reduced flow. Additional filters were exposed to air flow in a reactor confinement system and then similarly tested with steam--air mixture flows. The test data and calculated effects of filter pluggage with moisture on confinement system performance following potential reactor accidents are described. Gamma radiation exposure impaired the performance of new filters only slightly and temporarily improved performance of service aged filters. Normal confinement system service significantly impaired filter performance although not sufficiently to prevent adequate performance of the SRP confinement system following an unlikely reactor accident. Calculations based on measured filter pluggage indicate that during an accident air flow could be reduced approximately 50 percent with service-degraded HEPA filters present, or approximately 10 percent with new filters damaged by the radiation exposure. (U.S.)

  20. Impacts of nitrogen deposition on ecosystem services in interaction with other nutrients, air pollutants and climate change

    NARCIS (Netherlands)

    Vries, de W.; Goodale, C.; Erisman, J.W.; Hettelingh, J.P.

    2014-01-01

    Nitrogen (N) deposition affects many ecosystem services, ranging from: (i) provisioning services such as timber/wood fuel production, (ii) regulating services such as carbon sequestration and pollutant filtering leading to the provision of clean air and water, (iii) supporting services such as nutri

  1. Charging Guidance of Electric Taxis Based on Adaptive Particle Swarm Optimization.

    Science.gov (United States)

    Niu, Liyong; Zhang, Di

    2015-01-01

    Electric taxis are playing an important role in the application of electric vehicles. The actual operational data of electric taxis in Shenzhen, China, is analyzed, and, in allusion to the unbalanced time availability of the charging station equipment, the electric taxis charging guidance system is proposed basing on the charging station information and vehicle information. An electric taxis charging guidance model is established and guides the charging based on the positions of taxis and charging stations with adaptive mutation particle swarm optimization. The simulation is based on the actual data of Shenzhen charging stations, and the results show that electric taxis can be evenly distributed to the appropriate charging stations according to the charging pile numbers in charging stations after the charging guidance. The even distribution among the charging stations in the area will be achieved and the utilization of charging equipment will be improved, so the proposed charging guidance method is verified to be feasible. The improved utilization of charging equipment can save public charging infrastructure resources greatly.

  2. Taxi Time Prediction at Charlotte Airport Using Fast-Time Simulation and Machine Learning Techniques

    Science.gov (United States)

    Lee, Hanbong

    2016-01-01

    Accurate taxi time prediction is required for enabling efficient runway scheduling that can increase runway throughput and reduce taxi times and fuel consumptions on the airport surface. Currently NASA and American Airlines are jointly developing a decision-support tool called Spot and Runway Departure Advisor (SARDA) that assists airport ramp controllers to make gate pushback decisions and improve the overall efficiency of airport surface traffic. In this presentation, we propose to use Linear Optimized Sequencing (LINOS), a discrete-event fast-time simulation tool, to predict taxi times and provide the estimates to the runway scheduler in real-time airport operations. To assess its prediction accuracy, we also introduce a data-driven analytical method using machine learning techniques. These two taxi time prediction methods are evaluated with actual taxi time data obtained from the SARDA human-in-the-loop (HITL) simulation for Charlotte Douglas International Airport (CLT) using various performance measurement metrics. Based on the taxi time prediction results, we also discuss how the prediction accuracy can be affected by the operational complexity at this airport and how we can improve the fast time simulation model before implementing it with an airport scheduling algorithm in a real-time environment.

  3. Charging Guidance of Electric Taxis Based on Adaptive Particle Swarm Optimization

    Directory of Open Access Journals (Sweden)

    Liyong Niu

    2015-01-01

    Full Text Available Electric taxis are playing an important role in the application of electric vehicles. The actual operational data of electric taxis in Shenzhen, China, is analyzed, and, in allusion to the unbalanced time availability of the charging station equipment, the electric taxis charging guidance system is proposed basing on the charging station information and vehicle information. An electric taxis charging guidance model is established and guides the charging based on the positions of taxis and charging stations with adaptive mutation particle swarm optimization. The simulation is based on the actual data of Shenzhen charging stations, and the results show that electric taxis can be evenly distributed to the appropriate charging stations according to the charging pile numbers in charging stations after the charging guidance. The even distribution among the charging stations in the area will be achieved and the utilization of charging equipment will be improved, so the proposed charging guidance method is verified to be feasible. The improved utilization of charging equipment can save public charging infrastructure resources greatly.

  4. A Mobile, Dynamic, and Privacy-Preserving Matching System for Car and Taxi Pools

    Directory of Open Access Journals (Sweden)

    Shin-Yan Chiou

    2014-01-01

    Full Text Available Recently, rates of vehicle ownership have risen globally, exacerbating problems including air pollution, lack of parking, and traffic congestion. While many solutions to these problems have been proposed, carpooling remains one of the most effective approaches. Recently, several carpooling platforms have been built on cloud computing systems, with originators posting online list of departure/arrival points and schedules from which participants can search for rides that match their needs. However, it can be difficult to make matches quickly and the systems are subject to privacy concerns in that they may disclose private information such as names, registration data, and departure/arrival schedules. This paper proposes a dynamic matching method for car/taxi pools for use in mobile devices via ad hoc Wi-Fi networks. The proposed method also preserves user privacy including names and departure/arrival schedules. Moreover, the system does not require the user to register any personal data, so such data cannot be leaked. The system was implemented on the Android mobile platform, allowing users to immediately and securely access the system via their smart phones.

  5. Simulation of Special Structure Queuing System Made up of Taxis and Passengers%由出租车和乘客构成的特殊结构排队系统仿真

    Institute of Scientific and Technical Information of China (English)

    慕晨; 宣慧玉

    2011-01-01

    出租车排队系统的特殊性体现在:1)服务台移动;2)服务台与服务对象双向排队等待;3)服务台具备主动搜索服务对象的能力;4)服务时间受到路网动态交通流和信号灯的影响.基于此,采用离散事件仿真技术模拟出租车在路网上搜索乘客并提供出行服务的动悉过程.校核与验证的结果表明:仿真模型能够更真实和精铹地描述出租车运营系统,仿真结果与实际系统是一致的.%The taxi queueing system possesses special structure as follows: l) the servers are mobile; 2) not only passengers are in queues waiting for services, but taxis are often observed to be lining up to wait for passengers; 3) the servers have the ability to search for passengers, 4) a passenger's trip time is affected greatly by dynamic traffic flow and signals. Therefore,discrete event system simulation technology is used to model the dynamic process of taxis cruising in the streets and providing travel services. The results of verification and validation show that simulation model can illustrate taxi operation system more accurately, and the conclusions of this model are consistent with taxi operation system in reality.

  6. Nonconstant Positive Steady States and Pattern Formation of 1D Prey-Taxis Systems

    Science.gov (United States)

    Wang, Qi; Song, Yang; Shao, Lingjie

    2016-08-01

    Prey-taxis is the process that predators move preferentially toward patches with highest density of prey. It is well known to have an important role in biological control and the maintenance of biodiversity. To model the coexistence and spatial distributions of predator and prey species, this paper concerns nonconstant positive steady states of a wide class of prey-taxis systems with general functional responses over 1D domain. Linearized stability of the positive equilibrium is analyzed to show that prey-taxis destabilizes prey-predator homogeneity when prey repulsion (e.g., due to volume-filling effect in predator species or group defense in prey species) is present, and prey-taxis stabilizes the homogeneity otherwise. Then, we investigate the existence and stability of nonconstant positive steady states to the system through rigorous bifurcation analysis. Moreover, we provide detailed and thorough calculations to determine properties such as pitchfork and turning direction of the local branches. Our stability results also provide a stable wave mode selection mechanism for thee reaction-advection-diffusion systems including prey-taxis models considered in this paper. Finally, we provide numerical studies of prey-taxis systems with Holling-Tanner kinetics to illustrate and support our theoretical findings. Our numerical simulations demonstrate that the 2× 2 prey-taxis system is able to model the formation and evolution of various striking patterns, such as spikes, periodic oscillations, and coarsening even when the domain is one-dimensional. These dynamics can model the coexistence and spatial distributions of interacting prey and predator species. We also give some insights on how system parameters influence pattern formation in these models.

  7. Association of Some Environmental Factors with Breath Carbon Monoxide Levels of Some Taxi Drivers in Ankara

    Directory of Open Access Journals (Sweden)

    Oguz Baran

    2010-12-01

    Full Text Available AIM: Taxi drivers are among the occupational groups with the highest smoking prevalence and exposure to carbon monoxide (CO. This study aimed to measure breath CO levels of some taxi drivers working in Ankara and to find out some associated factors (if any. METHOD: The descriptive study was carried out with 173 taxi drivers from 14 different taxi stations in the center of Ankara. Data was collected by face to face interviews with a standart questionnaire, while breath CO was measured by a Pi-CO Smokerlyser. Descriptive statistics were used to summarize data, whereas chi-square, independant samples t-test and One-Way ANOVA were used to compare groups by SPSS 15.0 statistical package programme. RESULTS: In the study, all of the taxi drivers (n=173 were male with a mean age of 39.2±9.6 years. Of the drivers, 58.4% were current smokers, whereas 75.1% were exposed to enviromental tobacco smoke. The frequency of indoor smoking in the taxi stations, taxis and drivers’ homes were 48.0%, 45.1%, and 59.0%, respectively. The mean breath CO level of the drivers was 16.9±12.8 ppm. CO level was positively associated with the current smoking status, total years of smoking, number of cigarettes smoked per day and passive exposure to tobacco smoke, whereas the association was negative with the elapsed time from the last cigarette smoked (p0.05. CONCLUSION: Results of the study provide evidence in support of the previous literature that smoking is one of the most important sources of carbonmonoxide. Interventions such as awareness raising trainings, referral of smokers willing to quit smoking to smoking cessation centers and screening programmes for smoking related diseases are needed to be implemented in collaboration with the relevant drivers’ associations. [TAF Prev Med Bull 2010; 9(6.000: 591-596

  8. Collective human mobility pattern from taxi trips in urban area

    KAUST Repository

    Peng, Chengbin

    2012-04-18

    We analyze the passengers\\' traffic pattern for 1.58 million taxi trips of Shanghai, China. By employing the non-negative matrix factorization and optimization methods, we find that, people travel on workdays mainly for three purposes: commuting between home and workplace, traveling from workplace to workplace, and others such as leisure activities. Therefore, traffic flow in one area or between any pair of locations can be approximated by a linear combination of three basis flows, corresponding to the three purposes respectively. We name the coefficients in the linear combination as traffic powers, each of which indicates the strength of each basis flow. The traffic powers on different days are typically different even for the same location, due to the uncertainty of the human motion. Therefore, we provide a probability distribution function for the relative deviation of the traffic power. This distribution function is in terms of a series of functions for normalized binomial distributions. It can be well explained by statistical theories and is verified by empirical data. These findings are applicable in predicting the road traffic, tracing the traffic pattern and diagnosing the traffic related abnormal events. These results can also be used to infer land uses of urban area quite parsimoniously. 2012 Peng et al.

  9. Collective human mobility pattern from taxi trips in urban area.

    Directory of Open Access Journals (Sweden)

    Chengbin Peng

    Full Text Available We analyze the passengers' traffic pattern for 1.58 million taxi trips of Shanghai, China. By employing the non-negative matrix factorization and optimization methods, we find that, people travel on workdays mainly for three purposes: commuting between home and workplace, traveling from workplace to workplace, and others such as leisure activities. Therefore, traffic flow in one area or between any pair of locations can be approximated by a linear combination of three basis flows, corresponding to the three purposes respectively. We name the coefficients in the linear combination as traffic powers, each of which indicates the strength of each basis flow. The traffic powers on different days are typically different even for the same location, due to the uncertainty of the human motion. Therefore, we provide a probability distribution function for the relative deviation of the traffic power. This distribution function is in terms of a series of functions for normalized binomial distributions. It can be well explained by statistical theories and is verified by empirical data. These findings are applicable in predicting the road traffic, tracing the traffic pattern and diagnosing the traffic related abnormal events. These results can also be used to infer land uses of urban area quite parsimoniously.

  10. The effect of air transport on the production of goods and services

    OpenAIRE

    Sheard, Nicholas

    2012-01-01

    This paper estimates the effect of air transport on local production in the manufacturing and service sectors. The analysis is conducted using data from the United States. These effects are important for the design of policies that aim to develop an airport or to otherwise attract airlines to operate to and from the airport. This type of policy is commonly employed by national and local governments, indeed most large commercial airports in the United States and Canada are publicly owned. Thou...

  11. Study the epidemiological profile of taxi drivers in the background of occupational environment, stress and personality characteristics

    Directory of Open Access Journals (Sweden)

    Mukesh Suresh Bawa

    2013-01-01

    Full Text Available Background: Work hazards have been a major cause of concern in driving industry especially in taxi drivers. This study integrates the various factors that influence physical and emotional well-being of taxi drivers into the theoretical model that shows that the work environment, stress and personality characteristics directly influence taxi drivers′ health. Objective: The aim of the following study is to study the relative and combined influence of work environment, personality characteristics and stress on the health of taxi drivers. Meterials and Methods: The present study is cross-sectional (descriptive study taxi drivers in Mumbai. They are selected using multistage random sampling method. Calculated sample size is 508. Data produced after the survey is analyzed using IBM SPSS 16.0 software. Results: Nearly 65% of taxi drivers belonged to middle-age group of 21-40 years of age. Majority (59% of taxi drivers belonged to the lower upper socio-economic class. 70% of taxi drivers worked for more than 8 h daily. 63% gave the history of one or more addictions. 52% taxi drivers had type B1 personality, only 6% had stress prone and aggressive type A1 personality. Traffic congestion (67.1% was reported as the leading stressor followed by narrow bottle neck roads (43%, too many speed breakers (41%, rude gestures and behavior by other drivers (42% and bad weather (36%. Nearly 86% taxi drivers had one or more symptoms of morbidities. Gastrointestinal symptoms predominated followed by musculoskeletal symptoms and depression. Conclusion: Socio-demographic attributes, work environment, stress and personality significantly influence physical and psychological morbidities in taxi drivers.

  12. Traffic Variability in Benchmarking of Air Navigation Services Providers Cost-Effectiveness

    Directory of Open Access Journals (Sweden)

    Andrej Grebenšek

    2012-02-01

    Full Text Available The European Air Navigation Services Providers (ANSPs currently handle around 26,000 flights per day. According to forecasts, air traffic levels should probably double by 2020. Different benchmarking exercises have shown that European ATM costs, in comparison to other similar systems on the globe, additional € 2-3 billion per year. This strongly implies that European ATM needs to cut costs and improves its performance. Aeronautical organisations such as the European Organisation for the Safety of Air Navigation (EUROCONTROL or Civil Air Navigation Services Organisation (CANSO perform benchmarking studies and issue reports, but they both admit that their work is based on factual analysis and not on proper normative analysis and therefore are not entirely objective. Factual analysis is a good starting point, but as already recognized generally, proper methodology should be developed for proper normative analysis. To get a bit closer to objectivity of the results, this paper challenges one of the recognized endogenous factors, the traffic variability. Equalizing the calculations by different variability factors proved that benchmarking order of individual ANSPs changed. Showing an example on how seasonal variability can influence cost-effectiveness and ATCOHour productivity is only one small stone in a mosaic of potential future methodology for normative analysis.

  13. Contribution of ecosystem services to air quality and climate change mitigation policies: the case of urban forests in Barcelona, Spain.

    Science.gov (United States)

    Baró, Francesc; Chaparro, Lydia; Gómez-Baggethun, Erik; Langemeyer, Johannes; Nowak, David J; Terradas, Jaume

    2014-05-01

    Mounting research highlights the contribution of ecosystem services provided by urban forests to quality of life in cities, yet these services are rarely explicitly considered in environmental policy targets. We quantify regulating services provided by urban forests and evaluate their contribution to comply with policy targets of air quality and climate change mitigation in the municipality of Barcelona, Spain. We apply the i-Tree Eco model to quantify in biophysical and monetary terms the ecosystem services "air purification," "global climate regulation," and the ecosystem disservice "air pollution" associated with biogenic emissions. Our results show that the contribution of urban forests regulating services to abate pollution is substantial in absolute terms, yet modest when compared to overall city levels of air pollution and GHG emissions. We conclude that in order to be effective, green infrastructure-based efforts to offset urban pollution at the municipal level have to be coordinated with territorial policies at broader spatial scales.

  14. An assessment on in-vehicle concentration of carbon monoxide for taxis in central business district of Tehran

    Directory of Open Access Journals (Sweden)

    Nabi ollah Mansouri

    2013-01-01

    Full Text Available Background and Aim: Carbon monoxide is colorless and odorless gas. In high concentrations, CO is deadly poisonous and in low concentrations can cause fatigue, headache, dizziness and seizures. Carbon monoxide has a high affinity to combines hemoglobin which can decrease oxygen capacity in blood. To address this problem, human body begins to produce red blood cells, this can increases blood viscosity and thus increase diseases such as stroke and heart attack. About 60 percent of total emissions of carbon monoxide are associated automobile exhaust. In this study, concentration of carbon monoxide has been measured in the cabin space of taxis in high-traffic areas of Tehran.Materials and Methods: This study is carried out in spring and summer 2011. Concentrations of carbon monoxide in different types of taxi cabin space (Peugeot, Samand, Pride and Peykan were measured by carbon monoxide meter Q RAE 2 models in different conditions of motion: high speed (over 45 kilometers per hour, low speed (15-30 kilometers per hour and stop (0 kilometers per hour. Results: Results showed that concentration of carbon monoxide in old vehicles (above 10 years is more than three times compared to new vehicles and outdoor. In addition, according to the measured values, at low speeds, values of CO rapidly increased, so that in speeds of less than 15 km, values of CO go beyond standard values (9 ppm.Conclusion: Results show that the mean value of the measured concentration of carbon monoxide is higher than amounts recommended by WHO and EPA and local authorities such as Air Quality Control Organization of Tehran. Concentrations observed in this study are up to 40 more than results of a study by German researchers in summer 1995 and winter 1996.

  15. Application of ESE Data and Tools to Air Quality Management: Services for Helping the Air Quality Community use ESE Data (SHAirED)

    Science.gov (United States)

    Falke, Stefan; Husar, Rudolf

    2011-01-01

    The goal of this REASoN applications and technology project is to deliver and use Earth Science Enterprise (ESE) data and tools in support of air quality management. Its scope falls within the domain of air quality management and aims to develop a federated air quality information sharing network that includes data from NASA, EPA, US States and others. Project goals were achieved through a access of satellite and ground observation data, web services information technology, interoperability standards, and air quality community collaboration. In contributing to a network of NASA ESE data in support of particulate air quality management, the project will develop access to distributed data, build Web infrastructure, and create tools for data processing and analysis. The key technologies used in the project include emerging web services for developing self describing and modular data access and processing tools, and service oriented architecture for chaining web services together to assemble customized air quality management applications. The technology and tools required for this project were developed within DataFed.net, a shared infrastructure that supports collaborative atmospheric data sharing and processing web services. Much of the collaboration was facilitated through community interactions through the Federation of Earth Science Information Partners (ESIP) Air Quality Workgroup. The main activities during the project that successfully advanced DataFed, enabled air quality applications and established community-oriented infrastructures were: develop access to distributed data (surface and satellite), build Web infrastructure to support data access, processing and analysis create tools for data processing and analysis foster air quality community collaboration and interoperability.

  16. Revealing daily travel patterns and city structure with taxi trip data

    CERN Document Server

    Liu, Xi; Gong, Yongxi; Liu, Yu

    2013-01-01

    Detecting regional spatial structures based on spatial interactions is crucial in applications ranging from urban planning to traffic control. In the big data era, various movement trajectories are available for studying spatial structures. This research uses large scale Shanghai taxi trip data extracted from GPS-enabled taxi trajectories to reveal traffic flow patterns and urban structure of the city. Using the network science methods, 15 temporally stable regions reflecting the scope of people's daily travels are found using community detection method on the network built from short trips, which represent residents' daily intra-urban travels and exhibit a clear pattern. In each region, taxi traffic flows are dominated by a few 'hubs' and 'hubs' in suburbs impact more trips than 'hubs' in urban areas. Land use conditions in urban regions are different from those in suburban areas. Additionally, 'hubs' in urban area associate with office buildings and commercial areas more, whereas residential land use is mor...

  17. A Moderator’s Perspective From Service Quality and Purchase Intentions Relationship: A Case Study of AirAsia Airlines

    OpenAIRE

    Meysam Salimi; Hamid Reza Hadjali; Shahryar Sorooshian

    2012-01-01

    In this study, it was aimed to examine the relationships between service quality, brand loyalty and intention to buy among AirAsia passengers in Malaysia. The results obtained indicate that there is a positive relationship between service quality, brand loyalty and purchase intentions, while there is a moderator effect of ticket price affecting the relationship between service quality and intention to buy among customers. With more scrutinizing, it was revealed that the effect of service qual...

  18. Optimizing Air Transportation Service to Metroplex Airports. Part 1; Analysis of Historical Data

    Science.gov (United States)

    Donohue, George; Hoffman, Karla; Sherry, Lance; Ferguson, John; Kara, Abdul Qadar

    2010-01-01

    The air transportation system is a significant driver of the U.S. economy, providing safe, affordable, and rapid transportation. During the past three decades airspace and airport capacity has not grown in step with demand for air transportation (+4% annual growth), resulting in unreliable service and systemic delays. Estimates of the impact of delays and unreliable air transportation service on the economy range from $32B to $41B per year. This report describes the results of an analysis of airline strategic decision-making with regards to: (1) geographic access, (2) economic access, and (3) airline finances. This analysis evaluated markets-served, scheduled flights, aircraft size, airfares, and profit from 2005-2009. During this period, airlines experienced changes in costs of operation (due to fluctuations in hedged fuel prices), changes in travel demand (due to changes in the economy), and changes in infrastructure capacity (due to the capacity limits at EWR, JFK, and LGA). This analysis captures the impact of the implementation of capacity limits at airports, as well as the effect of increased costs of operation (i.e. hedged fuel prices). The increases in costs of operation serve as a proxy for increased costs per flight that might occur if auctions or congestion pricing are imposed.

  19. Occupational Exposure to Carbon Monoxide of Taxi Drivers in Tehran, Iran

    OpenAIRE

    Seyed Jamaleddin Shahtaheri; Hossein Kakooei; Mohammad Javad Golhosseini; Kamal Azam; Davood Panahi

    2011-01-01

    Occupational exposure to carbon monoxide (CO) of taxi drivers has seldom been evaluated in Iran. Accordingly, in-vehicle CO levels were evaluated during 6 months inside the taxis between May 2009 and October 2010. The CO concentrations of 36 personal samples were collected using a direct reading instrument equipped with electrochemical sensor. The arithmetic mean of the personal monitoring CO levels was 19.84 ± 4.24 ppm per day, with a range of 13.29-33.46 ppm. The observed concentrations of ...

  20. nowCOAST's Map Service for NOAA NWS NDFD Forecasts of Daily Min Surface Air Temperature (deg. F) (Time Offsets)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Map Information: This nowCOAST time-offsets map service provides maps depicting the NWS daily minimum surface air temperature forecasts from the National Digital...

  1. nowCOAST's Map Service for NOAA NWS NDFD Forecasts of Daily Max Surface Air Temperature (deg. F) (Time Offsets)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Map Information: This nowCOAST time-offsets map service provides maps depicting the NWS daily maximum surface air temperature forecasts from the National Digital...

  2. Efficient supersonic air vehicle design using the Service-Oriented Computing Environment (SORCER

    Directory of Open Access Journals (Sweden)

    Burton Scott A.

    2014-01-01

    Full Text Available The Air Force Research Lab’s Multidisciplinary Science and Technology Center is investigating conceptual design processes and computing frameworks that could significantly impact the design of the next generation efficient supersonic air vehicle (ESAV. The ESAV conceptual design process must accommodate appropriate fidelity multidisciplinary engineering analyses (MDAs to assess the impact of new air vehicle technologies. These analyses may be coupled and computationally expensive, posing a challenge due to the large number of air vehicle configurations analyzed during conceptual design. In light of these observations, a design process using the Service-Oriented Computing Environment (SORCER software is implemented to combine propulsion, structures, aerodynamics, aeroelasticity, and performance in an integrated MDA. The SORCER software provides the automation and tight integration to grid computing resources necessary to achieve the volume of appropriate fidelity analyses required. Two design studies are performed using a gradient-based optimization method to produce long and short range ESAV wing designs. The studies demonstrate the capability of the ESAV MDA, the optimization algorithm, and the computational scalability and reliability of the SORCER software.

  3. Research on Strategy Control of Taxi Carpooling Detour Route under Uncertain Environment

    Directory of Open Access Journals (Sweden)

    Wei Zhang

    2016-01-01

    Full Text Available For the problem of route choice in taxi carpooling detour, considering the uncertainty of traffic and the characteristic of passengers’ noncomplete rationality, an evolutionary game model of taxi carpooling detour route is built, in which prospect theory is introduced and revenue of strategy is replaced by prospect value. The model reflects more really decision-making psychology of passengers. Then the stable strategies of the model are studied, and the influences of detour distance and traffic congestion on detour carpooling success are analyzed, respectively. The results show that when at least one route of which prospect values for two passenger sides are both positive exists, carpooling route can reach an agreement. The route is stable strategy of evolutionary game, and the passengers requiring short travel time tend to select the nondetour route. With the increase of detour distance and traffic congestion rate, the possibility of reaching an agreement decreases gradually; that is, possibility of carpooling failure increases. So taxi carpooling detour is possible under the certain condition, but some measures must be carried out such as constraints of detour distance and mitigation of traffic congestion to improve carpooling success probability. These conclusions have a certain guiding significance to the formulation of taxi carpooling policy.

  4. [Association between psychosocial aspects of work and quality of life among motorcycle taxi drivers].

    Science.gov (United States)

    Teixeira, Jules Ramon Brito; Boery, Eduardo Nagib; Casotti, Cezar Augusto; Araújo, Tânia Maria de; Pereira, Rafael; Ribeiro, Ícaro José Santos; Rios, Marcela Andrade; Amorim, Camila Rego; Moreira, Ramon Missias; Boery, Rita Narriman Silva de Oliveira; Sales, Zenilda Nogueira

    2015-01-01

    This study aimed to evaluate the quality of life of motorcycle taxi drivers and the association with psychosocial characteristics of their work. This was a cross-sectional epidemiological study with a sample of 400 motorcycle taxi drivers in Jequié, Bahia State, Brazil. The study used a form containing demographic and socioeconomic data, WHO Quality of Life-Bref Questionnaire (WHOQOL-Bref), and the Job Content Questionnaire (JCQ). Motorcycle taxi drivers with greater decision-making control over their work showed better self-rated quality of life in the psychological domain; those with high psychological demands presented better self-rated quality of life in the social relations and environmental domains; those with high strain and active work showed better self-rated quality of life in the social and environmental domains. The psychosocial work environment and especially decision-making autonomy were thus important determinants of self-rated quality of life in this group of motorcycle taxi drivers.

  5. Operator splitting and approximate factorization for taxis-diffusion-reaction models

    NARCIS (Netherlands)

    Gerisch, A.; Verwer, J.G.

    2000-01-01

    In this paper we consider the numerical solution of 2D systems of certain types of taxis-diffusion-reaction equations from mathematical biology. By spatial discretization these PDE systems are approximated by systems of positive, nonlinear ODEs (Method of Lines). The aim of this paper is to examine

  6. Institutional statism: an overview of the formulation of the taxi recapitalisation policy

    Directory of Open Access Journals (Sweden)

    D. van Schalkwyk

    2008-07-01

    Full Text Available This article provides an overview of the government’s formulation of the taxi recapitalisation policy which is aimed at regulating the minibus taxi industry. Coupled with a brief social and politico-historical context of the policy, the aim is to highlight the government’s statist conduct in the formulation of the recapitalisation policy. The minibus taxi industry started to fulfil a prominent role in the 1970s as a result of a loophole in the legislation of the former apartheid government. It is currently the most accessible mode of public transport and conveys 65 per cent of the country’s commuters daily. Consequently, the Industry is an imperative force to be considered by the government in its formulation of transport policies. However, the industry is characterised by numerous problems, including a high rate of minibus taxis involved in accidents, unroadworthy vehicles and violence. It is in this context that the government formulated both the original and revised versions of the recapitalisation policy. However, the formulation of the policy has been problematic. The government followed a statist approach during the formulation process when it directed the course of the process according to its interests and without adequate consultation with relevant role players.

  7. Energy Taxis Drives Campylobacter jejuni toward the Most Favorable Conditions for Growth

    DEFF Research Database (Denmark)

    Vegge, C.S.; Brondsted, L.; Li, Yiping;

    2009-01-01

    Campylobacter jejuni is a serious food-borne bacterial pathogen in the developed world. Poultry is a major reservoir, and C. jejuni appears highly adapted to the gastrointestinal tract of birds. Several factors are important for chicken colonization and virulence, including a taxis mechanism...

  8. AIRS/AMSU-A/HSB Data On-demand Subsetting and Visualization Services at NASA GES DISC DAAC

    Science.gov (United States)

    Li, J.; Cho, S.; Sun, D.; Qin, J.; Sharma, A. K.

    2002-12-01

    The Atmospheric Infrared Sounder (AIRS) is a high-resolution infrared sounder closely coupled with AMSU-A (Advanced Microwave Sounding Unit-A) and HSB (Humidity Sounder for Brazil) on EOS Aqua spacecraft launched on May 4, 2002. The data products from AIRS/AMSU-A/HSB will be archived and distributed at the Goddard Distributed Active Archive Center (GDAAC) located in the NASA Goddard Earth Sciences Data and Information Services Center (GES DAAC). The ADDST is developing tools to read, visualize, analyze and reformat AIRS/AMSU-A/HSB data. The web-based AIRS on-the-fly/on-demand subsetter will be available to perform channel/variable subsetting and restructuring for Level1B (Calibrated Radiances) and Level2 (Atmospheric Retrievals) data products. One can narrow down criteria to subset data files with desired channels and variables and then download the subsetted file. AIRS QuickLook allows users to view AIRS/HSB/AMSU Level-1B data online for a specific channel prior to ordering or downloading data. Global map is also provided along with image to show geographic coverage of the granule and flight direction of the spacecraft. The Atmospheric Dynamics Data Support Team (ADDST) at the GES DISC/DAAC is providing various services to assist users in understanding, accessing, and using AIRS data product. Information on AIRS data and data analysis tools can be found at AIRS data support informational web site (http://daac.gsfc.nasa.gov/atmodyn/airs/ ) that provides access to various technical online documents, such as, readmes, user's guides, instrument guides, images from AIRS/AMSU-A/HSB data, product search and ordering interfaces, HDF-EOS format information, format conversion software, online data analysis tools, other AIRS related web links and more. Other data support services provided by the ADDST are assist with data mining, helpdesk for user questions on data and information, data ordering, and educational resources.

  9. Evolution of taxis responses in virtual bacteria: non-adaptive dynamics.

    Directory of Open Access Journals (Sweden)

    Richard A Goldstein

    2008-05-01

    Full Text Available Bacteria are able to sense and respond to a variety of external stimuli, with responses that vary from stimuli to stimuli and from species to species. The best-understood is chemotaxis in the model organism Escherichia coli, where the dynamics and the structure of the underlying pathway are well characterised. It is not clear, however, how well this detailed knowledge applies to mechanisms mediating responses to other stimuli or to pathways in other species. Furthermore, there is increasing experimental evidence that bacteria integrate responses from different stimuli to generate a coherent taxis response. We currently lack a full understanding of the different pathway structures and dynamics and how this integration is achieved. In order to explore different pathway structures and dynamics that can underlie taxis responses in bacteria, we perform a computational simulation of the evolution of taxis. This approach starts with a population of virtual bacteria that move in a virtual environment based on the dynamics of the simple biochemical pathways they harbour. As mutations lead to changes in pathway structure and dynamics, bacteria better able to localise with favourable conditions gain a selective advantage. We find that a certain dynamics evolves consistently under different model assumptions and environments. These dynamics, which we call non-adaptive dynamics, directly couple tumbling probability of the cell to increasing stimuli. Dynamics that are adaptive under a wide range of conditions, as seen in the chemotaxis pathway of E. coli, do not evolve in these evolutionary simulations. However, we find that stimulus scarcity and fluctuations during evolution results in complex pathway dynamics that result both in adaptive and non-adaptive dynamics depending on basal stimuli levels. Further analyses of evolved pathway structures show that effective taxis dynamics can be mediated with as few as two components. The non-adaptive dynamics

  10. Minibus taxi drivers’ sexual beliefs and practices associated with HIV infection and AIDS in KwaZulu- Natal, South Africa

    Directory of Open Access Journals (Sweden)

    Busisiwe Ncama

    2013-01-01

    Full Text Available Risky sexual behaviours in South Africa are a major contributing factor to the spread of HIV infection and AIDS. HIV infection amongst minibus taxi drivers is a concern, because these people belong to an occupational group that exhibits risky behaviours due to the demands of their work. Given the high vulnerability of minibus taxi drivers, exploring the sexual beliefs and health-related sexual practices of this group will assist in planning targeted interventions.The objectives of this study were to assess the level of knowledge, beliefs and practices regarding HIV infection and AIDS amongst minibus taxi drivers. An exploratory descriptive study was conducted using a pre-tested questionnaire to explore and describe sexual beliefs and practices associated with HIV infection and AIDS in a convenience sample of 175 minibus taxi drivers. Permission to undertake the study was obtained from the KwaZulu-Natal Taxi Alliance and individuals who participated in the study. Data analysis were analysed using the Statistical Package for Social Sciences 13.0. The study revealed that minibus taxi drivers are one of the high- risk groups in the spread of HIV infection and AIDS; they lack necessary education and need attention in relation to control and prevention of the spread of HIV and AIDS. Multiple sexual partners are relatively common amongst the minibus taxi drivers. Violence against women and even forceful sexual intercourse in the belief that women should tolerate it to keep the family together was reported. There is a need for intervention programmes with a focus on minibus taxi drivers and similar high-risk groups. Prevention activities should incorporate the distribution of condoms amongst this group and HIV prevention educational programmes, as well as creating mechanisms for accessing circumcision by the minibus taxi drivers.

  11. Design of intelligent terminal for TAXI based on ARM%基于 ARM的出租车智能终端的设计

    Institute of Scientific and Technical Information of China (English)

    卢锋

    2013-01-01

      大城市受道路运载能力限制,出现了出租车数量不足问题,催生了乘客私自拼乘现象,由此带来一系列交通纠纷。该文提出了一种出租车智能终端系统设计方案,它具有智能拼乘、GPS定位及远程调度管理等功能。该系统的推广使用将在降低能源消耗、缓解交通压力和提高城市服务水平方面发挥具大作用。%Limited by road carrying capacity , big city appeared TAXI shortage problem , which gen-erates privately taking-together and brings a series of traffic conflicts .This paper presents a taxi intelligent terminal system , it has intelligence for taking-together , GPS positioning and remote management func-tions.The widespread use of the system will plays a great role in reduce energy consumption , alleviate the traffic pressure and improve the level of city services .

  12. A Moderator’s Perspective From Service Quality and Purchase Intentions Relationship: A Case Study of AirAsia Airlines

    Directory of Open Access Journals (Sweden)

    Meysam Salimi

    2012-12-01

    Full Text Available In this study, it was aimed to examine the relationships between service quality, brand loyalty and intention to buy among AirAsia passengers in Malaysia. The results obtained indicate that there is a positive relationship between service quality, brand loyalty and purchase intentions, while there is a moderator effect of ticket price affecting the relationship between service quality and intention to buy among customers. With more scrutinizing, it was revealed that the effect of service quality on intention to buy is not significant for passengers when there is a higher ticket price.

  13. Water Services in the Buenos Aires Metropolitan Area: How Does State Regulation Work?

    Directory of Open Access Journals (Sweden)

    Mariela Verónica Rocca

    2014-08-01

    Full Text Available This article deals with the State regulation of drinking water and sanitation services in the Metropolitan Area of Buenos Aires. Its main objective is to identify the continuities and ruptures in State regulation during the transition from private management (1993-2006 to renationalisation and State management (2006 onwards. The concept of “State capacities” (both administrative and relational is used to assess regulatory performance. For the administrative capacities, the correspondence between the design and resources of the agencies, as well as the differences between their formal functions and actual practices, is examined. For the relational capacities, the policies of the National Government and its interaction with both the water and sanitation companies and the regulatory and control agencies are considered. The analysis is based on official documents, legislation and statistics, company balance sheets and reports, newspaper articles and semi-structured interviews.

  14. Applying the ecosystem service concept to air quality management in the UK: a case study for ammonia

    DEFF Research Database (Denmark)

    Smart, James Christopher Rudd; Hicks, Kevin; Morrissey, Tim;

    2011-01-01

    To date evaluation of the benefits of policies to control emissions of air pollutants in the UK has focused on human health effects, which are quantified economically, whereas ecosystem protection has only been assessed using critical levels and critical loads. This paper considers the current...... and quantification methods are needed before a full ecosystem services-based evaluation of costs and benefits becomes possible for ammonia and for other major air pollutants. Keywords: nitrogen; economic valuation; ecosystem approach; air pollution; biodiversity; climate regulation...... that economic valuation of impacts on many key ecosystem services was constrained by inadequate dose–response relationships to predict physical changes in service flows and/or by an inability to produce economic valuations of the predicted physical changes. For effects on biodiversity, both the timescale...

  15. Characterization of CetA and CetB, a bipartite energy taxis system in Campylobacter jejuni

    OpenAIRE

    Elliott, Kathryn T; DiRita, Victor J.

    2008-01-01

    The energy taxis receptor Aer, in Escherichia coli, senses changes in the redox state of the electron transport system via an flavin adenine dinucleotide cofactor bound to a PAS domain. The PAS domain (a sensory domain named after three proteins Per, ARNT and Sim, where it was first identified) is thought to interact directly with the Aer HAMP domain to transmit this signal to the highly conserved domain (HCD) found in chemotaxis receptors. An apparent energy taxis system in Campylobacter jej...

  16. Constitutive expression of the xylanase inhibitor TAXI-III delays Fusarium head blight symptoms in durum wheat transgenic plants.

    Science.gov (United States)

    Moscetti, Ilaria; Tundo, Silvio; Janni, Michela; Sella, Luca; Gazzetti, Katia; Tauzin, Alexandra; Giardina, Thierry; Masci, Stefania; Favaron, Francesco; D'Ovidio, Renato

    2013-12-01

    Cereals contain xylanase inhibitor (XI) proteins which inhibit microbial xylanases and are considered part of the defense mechanisms to counteract microbial pathogens. Nevertheless, in planta evidence for this role has not been reported yet. Therefore, we produced a number of transgenic plants constitutively overexpressing TAXI-III, a member of the TAXI type XI that is induced by pathogen infection. Results showed that TAXI-III endows the transgenic wheat with new inhibition capacities. We also showed that TAXI-III is correctly secreted into the apoplast and possesses the expected inhibition parameters against microbial xylanases. The new inhibition properties of the transgenic plants correlate with a significant delay of Fusarium head blight disease symptoms caused by Fusarium graminearum but do not significantly influence leaf spot symptoms caused by Bipolaris sorokiniana. We showed that this contrasting result can be due to the different capacity of TAXI-III to inhibit the xylanase activity of these two fungal pathogens. These results provide, for the first time, clear evidence in planta that XI are involved in plant defense against fungal pathogens and show the potential to manipulate TAXI-III accumulation to improve wheat resistance against F. graminearum.

  17. Video event data recording of a taxi driver used for diagnosis of epilepsy

    Directory of Open Access Journals (Sweden)

    Kotaro Sakurai

    2014-01-01

    Full Text Available A video event data recorder (VEDR in a motor vehicle records images before and after a traffic accident. This report describes a taxi driver whose seizures were recorded by VEDR, which was extremely useful for the diagnosis of epilepsy. The patient was a 63-year-old right-handed Japanese male taxi driver. He collided with a streetlight. Two years prior to this incident, he raced an engine for a long time while parked. The VEDR enabled confirmation that the accidents depended on an epileptic seizure and he was diagnosed with symptomatic localization-related epilepsy. The VEDR is useful not only for traffic accident evidence; it might also contribute to a driver's health care and road safety.

  18. PENINGKATAN HASIL BELAJAR PERPAJAKAN MELALUI MEDIA TAXI SNADERS PADA SISWA XI B SMK PL TARCISIUS 2

    Directory of Open Access Journals (Sweden)

    Cornelius Hery Setyawan

    2016-01-01

    Full Text Available Vocational School (SMK is an educational institution to transfer knowledge about the tax. Unluckily, teaching learning process in delivering this material was monotonous, so it needed a medium called TAXI SNADERS. The objective of the study was to increase interest and learning outcomes taxation on Value Added Tax (VAT and Sales of Luxury through a medium called TAXI SNADERS. The result of the study showed that there was improvement toward students’ interest for 14.5%. On the 1st cycle, students’ interest was only 67.25%, then it increased up to 81.75% on the 2nd cycle. Moreover, students’ learning outcomes also increased for 20% in post test. It was 67% on the 1st cycle and rose to 87% on the 2nd cycle. 

  19. Relation between workplace accidents and the levels of carboxyhemoglobin in motorcycle taxi drivers

    Directory of Open Access Journals (Sweden)

    Luiz Almeida da Silva

    2013-09-01

    Full Text Available OBJECTIVE: to investigate the relation between workplace accidents and the levels of carboxyhemoglobin found in motorcycle taxi drivers. METHOD: correlational, quantitative study involving 111 workers and data obtained in July 2012 through a questionnaire to characterize the participants and blood collection to measure carboxyhemoglobin levels. RESULT: 28.8% had suffered workplace accidents; 27.6% had fractured the lower limbs and significant symptoms of carbon monoxide exposure were verified in smokers. The carboxyhemoglobin levels were higher among smokers and victims of workplace accidents. CONCLUSION: motorcycle taxi drivers had increased levels of carboxyhemoglobin, possibly due to the exposure to carbon monoxide; these levels are also increased among smokers and victims of workplace accidents. The study provides advances in the knowledge about occupational health and environmental science, and also shows that carboxyhemoglobin can be an indicator of exposure to environmental pollutants for those working outdoors, which can be related to workplace accidents.

  20. ASME N511-19XX, Standard for periodic in-service testing of nuclear air treatment, heating, ventilating and air conditioning systems

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-08-01

    A draft version of the Standard is presented in this document. The Standard covers the requirements for periodic in-service testing of nuclear safety-related air treatment, heating, ventilating, and air conditioning systems in nuclear facilities. The Standard provides a basis for the development of test programs and does not include acceptance criteria, except in cases where the results of one test influence the performance of other tests. The Standard covers general inspection and test requirements, reference values, inspection and test requirements, generic tests, acceptance criteria, in-service test requirements, testing following an abnormal incident, corrective action requirements, and quality assurance. Mandatory appendices provide a visual inspection checklist and four test procedures. Non-mandatory appendices provide additional information and guidance on mounting frame pressure leak test procedure, corrective action, challenge gas substitute selection criteria, and test program development. 8 refs., 10 tabs.

  1. Metabolism-dependent taxis and control of motility in Pseudomonas putida

    OpenAIRE

    Österberg, Sofia

    2013-01-01

    Bacteria living in soil and aquatic habitats rapidly adapt to changes in physico-chemical parameters that influence their energy status and thus their ability to proliferate and survive. One immediate survival strategy is to relocate to more metabolically optimal environments. To aid their movement through gradients (a process called taxis), many bacteria use whip like flagella organelles. Soil-dwelling Pseudomonas putida possesses a polar bundle of flagella that propel the bacterium forward ...

  2. The Taxi Driver Found His Long-lost Son(高一适用)

    Institute of Scientific and Technical Information of China (English)

    孙伟玲

    2002-01-01

    A taxi driver has found the son he last saw 34 years ago --as a fare in the back of his cab. The chance of reunion came when Barry Bagshaw, 61,picked up a fare at a motel near Brighton in southern England. A short panying the man in the back found the driver's identity and noticed he had the same surname as her boyfriend.

  3. Air

    Science.gov (United States)

    ... house) Industrial emissions (like smoke and chemicals from factories) Household cleaners (spray cleaners, air fresheners) Car emissions (like carbon monoxide) *All of these things make up “particle pollution.” They mostly come from cars, trucks, buses, and ...

  4. 非正规出租车存在下的出租车合理规模研究%Reasonable Taxi Scale Based on Existence of Unregistered Taxi

    Institute of Scientific and Technical Information of China (English)

    张丰焰

    2015-01-01

    现有的出租车合理规模是根据出租车分担率计算得出的,但分担率在调查过程中受抽样比例、调查方式等因素的影响而存在较大误差,而且现有的出租车规模计算模型均未考虑非正规出租车分担了部分客运需求的事实,导致规模计算结果普遍偏低。为减少计算偏差,采用全数调查的方法,并结合出租车计价器的原始数据,直接测定出租车的日均载客人次、运营次数及单次载客人数等指标,提出在出租车有效行驶里程计算模型中不再考虑出租车分担率指标;基于非正规出租车客观存在而引入了非正规出租车承运比例指标,建立基于供需平衡的现时出租车合理保有量计算修正模型。最后通过实证分析验证了修正后的模型是合理和实用的,有利于抑制非正规出租车非法营运和城市出租车行业的健康发展。%The existing reasonable taxi scale was calculated according to the taxi share ratio. However, the taxi share ratio typically had large deviation due to the influence of sampling rate and survey method in the survey process. In addition, the fact that the unregistered taxi took some shares of market was not considered in the existing model for calculating the taxi scale. As a result, the calculated taxi scale was lower than that it should be. To reduce the deviation, combined with the original data of taxi fare meter, a full-data survey method was adopted, to investigate the daily passenger capacity, operating frequency, and average passengers on board. An effective taxi mileage calculation model which did not need to con⁃sider the taxi share rate was proposed. Due to the existence of unregistered taxi, the share of unregistered taxi was used to establish the revised reasonable taxi scale calculation model based on the balance of supply and demand. At last, through a case study, it is demonstrated that the revised model is reasonable and applicable

  5. Taxi ! méthode de français : niveau 3

    CERN Document Server

    Johnson, Anne-Marie

    2004-01-01

    Taxi ! 3 est une méthode interactive, qui développe non seulement les connaissances, mais aussi les savoir-faire et les savoir-être de l'apprenant, à l'écrit comme à l'oral. La méthode est très simple à utiliser : une leçon = une double page. Taxi ! 3 couvre le niveau Bl du Cadre européen commun de référence pour l'apprentissage, l'enseignement et l'évaluation des langues. La méthode permet de se préparer aux épreuves A3 et A4 du DELF 1er degré. Une progression et des contenus fonctionnels et langagiers solides permettent à l'apprenant d'atteindre rapidement une autonomie en français dans des situations de la vie courante. Taxi ! 3 permet de mieux connaître la France d'aujourd'hui et les comportements des Français à travers une grande variété de documents authentiques (écrit et audio).

  6. Analysis and Visualization for Hot Spot Based Route Recommendation Using Short-Dated Taxi GPS Traces

    Directory of Open Access Journals (Sweden)

    Ying Shen

    2015-04-01

    Full Text Available Taxi GPS traces, which contain a great deal of valuable information as regards to human mobility and city traffic, can be extracted to improve the quality of our lives. Since the method of visualized analysis is believed to be an effective way to present information vividly, we develop our analysis and visualization method based on a city’s short-dated taxi GPS traces, which can provide recommendation to help cruising taxi drivers to find potential passengers with optimal routes. With our approach, hot spots for loading and unloading passenger(s are extracted using an improved DBSCAN algorithm after data preprocessing including cleaning and filtering. Then, this paper describes the start-end point-based similar trajectory method to get coarse-level trajectories clusters, together with the density-based ε distance trajectory clustering algorithm to identify recommended potential routes. A weighted tree is defined including such factors as driving time, velocity, distance and endpoint attractiveness for optimal route evaluation from vacant to occupied hot spots. An example is presented to show the effectiveness of our visualization method.

  7. Occupational Exposure to Carbon Monoxide of Taxi Drivers in Tehran, Iran

    Directory of Open Access Journals (Sweden)

    Seyed Jamaleddin Shahtaheri

    2011-06-01

    Full Text Available Occupational exposure to carbon monoxide (CO of taxi drivers has seldom been evaluated in Iran. Accordingly, in-vehicle CO levels were evaluated during 6 months inside the taxis between May 2009 and October 2010. The CO concentrations of 36 personal samples were collected using a direct reading instrument equipped with electrochemical sensor. The arithmetic mean of the personal monitoring CO levels was 19.84 ± 4.24 ppm per day, with a range of 13.29-33.46 ppm. The observed concentrations of CO fell well lower than occupational standards. Exposures to CO during traffic flow in the evening were considerably higher than those measured in the morning. The weekdays, months and atmospheric environment had a significant effect on exposure to CO (p< 0.0001. The average CO level was 19.84 ± 4.24 ppm, which was higher than the outdoor CO levels (3.21 ppm. In conclusion, the penetration of outdoor CO pollution and engine combustion/exhaust infiltration constituted the main sources of the taxis drivers' personal exposure to CO.

  8. NO and NO2 emission ratios measured from in-use commercial aircraft during taxi and takeoff.

    Science.gov (United States)

    Herndon, Scott C; Shorter, Joanne H; Zahniser, Mark S; Nelson, David D; Jayne, John; Brown, Robert C; Miake-Lye, Richard C; Waitz, Ian; Silva, Phillip; Lanni, Thomas; Demerjian, Ken; Kolb, Charles E

    2004-11-15

    In August 2001, the Aerodyne Mobile Laboratory simultaneously measured NO, NO2, and CO2 within 350 m of a taxiway and 550 m of a runway at John F. Kennedy Airport. The meteorological conditions were such that taxi and takeoff plumes from individual aircraft were clearly resolved against background levels. NO and NO2 concentrations were measured with 1 s time resolution using a dual tunable infrared laser differential absorption spectroscopy instrument, utilizing an astigmatic multipass Herriott cell. The CO2 measurements were also obtained at 1 s time resolution using a commercial non-dispersive infrared absorption instrument. Plumes were measured from over 30 individual planes, ranging from turbo props to jumbo jets. NOx emission indices were determined by examining the correlation between NOx (NO + NO2) and CO2 during the plume measurements. Several aircraft tail numbers were unambiguously identified, allowing those specific airframe/engine combinations to be determined. The resulting NOx emission indices from positively identified in-service operating airplanes are compared with the published International Civil Aviation Organization engine certification test database collected on new engines in certification test cells.

  9. Improving Pre-Service Elementary Teachers' Education via a Laboratory Course on Air Pollution: One University's Experience

    Science.gov (United States)

    Mandrikas, Achilleas; Parkosidis, Ioannis; Psomiadis, Ploutarchos; Stoumpa, Artemisia; Chalkidis, Anthimos; Mavrikaki, Evangelia; Skordoulis, Constantine

    2013-01-01

    This paper describes the structure of the "Air Pollution Course", an environmental science laboratory course developed at the Science Education Laboratory of the Faculty of Primary Education, University of Athens, as well as the findings resulting from its implementation by pre-service elementary teachers. The course proposed in this study deals…

  10. Advances of air pollution science: from forest decline to multiple-stress effects on forest ecosystem services.

    Science.gov (United States)

    Paoletti, E; Schaub, M; Matyssek, R; Wieser, G; Augustaitis, A; Bastrup-Birk, A M; Bytnerowicz, A; Günthardt-Goerg, M S; Müller-Starck, G; Serengil, Y

    2010-06-01

    Over the past 20 years, the focus of forest science on air pollution has moved from forest decline to a holistic framework of forest health, and from the effects on forest production to the ecosystem services provided by forest ecosystems. Hence, future research should focus on the interacting factorial impacts and resulting antagonistic and synergistic responses of forest trees and ecosystems. The synergistic effects of air pollution and climatic changes, in particular elevated ozone, altered nitrogen, carbon and water availability, must be key issues for research. Present evidence suggests air pollution will become increasingly harmful to forests under climate change, which requires integration amongst various stressors (abiotic and biotic factors, including competition, parasites and fire), effects on forest services (production, biodiversity protection, soil protection, sustained water balance, socio-economical relevance) and assessment approaches (research, monitoring, modeling) to be fostered.

  11. Advances of air pollution science: from forest decline to multiple-stress effects on forest ecosystem services.

    Science.gov (United States)

    Paoletti, E; Schaub, M; Matyssek, R; Wieser, G; Augustaitis, A; Bastrup-Birk, A M; Bytnerowicz, A; Günthardt-Goerg, M S; Müller-Starck, G; Serengil, Y

    2010-06-01

    Over the past 20 years, the focus of forest science on air pollution has moved from forest decline to a holistic framework of forest health, and from the effects on forest production to the ecosystem services provided by forest ecosystems. Hence, future research should focus on the interacting factorial impacts and resulting antagonistic and synergistic responses of forest trees and ecosystems. The synergistic effects of air pollution and climatic changes, in particular elevated ozone, altered nitrogen, carbon and water availability, must be key issues for research. Present evidence suggests air pollution will become increasingly harmful to forests under climate change, which requires integration amongst various stressors (abiotic and biotic factors, including competition, parasites and fire), effects on forest services (production, biodiversity protection, soil protection, sustained water balance, socio-economical relevance) and assessment approaches (research, monitoring, modeling) to be fostered. PMID:20036449

  12. Air

    International Nuclear Information System (INIS)

    In recent years several regulations and standards for air quality and limits for air pollution were issued or are in preparation by the European Union, which have severe influence on the environmental monitoring and legislation in Austria. This chapter of the environmental control report of Austria gives an overview about the legal situation of air pollution control in the European Union and in specific the legal situation in Austria. It gives a comprehensive inventory of air pollution measurements for the whole area of Austria of total suspended particulates, ozone, volatile organic compounds, nitrogen oxides, sulfur dioxide, carbon monoxide, heavy metals, benzene, dioxin, polycyclic aromatic hydrocarbons and eutrophication. For each of these pollutants the measured emission values throughout Austria are given in tables and geographical charts, the environmental impact is discussed, statistical data and time series of the emission sources are given and legal regulations and measures for an effective environmental pollution control are discussed. In particular the impact of fossil-fuel power plants on the air pollution is analyzed. (a.n.)

  13. The Effect of Working Conditions to the Health Status in Taxi and Bus Drivers in Canakkale, Turkey; Community Based Study

    Directory of Open Access Journals (Sweden)

    Aysegul Uludag

    2016-04-01

    Full Text Available Aim: The growing taxi and bus driver workforce is at risk for poor health status, obesity, hypertension, metabolic syndrome and with increased risk for cardiovascular disease. We aimed to determine the relationship between working conditions and health status in taxi and bus drivers. Material and Method: This study is a descriptive study. The population of the study was taxi and bus drivers in central of Canakkale. There were total 250 taxi and bus drivers who registered in The Chamber of Canakkale Drivers and Vehicle. We reached the 70 taxi drivers and 93 bus drivers. The participants were visited at their workplace. We performed the questionnaire that include the socio-demografic features, habits, the working conditions. We evaluated the blood pressure, waist-hip measurements and capillary blood glucose at any time. Results: Total of the 163 men drivers were enrolled the study. Nine (12.9% taxi drivers and 6 (6.5% bus drivers were hipertensive, and 1 taxi driver and 2 bus drivers with random capillary blood glucose levels higher than 200 mg. The prevalence of hypertension was 9.2%, diabetes mellitus was 1.8, obesity was 49.4%. Discussion: Drivers have many risk factors for CVD like stress and immobility. In our study, the socio-demografic and working conditions are limited for explaining the risk for hipertension, diabetes mellitus and obesity in drivers in Canakkale. These study have to be done in metropolitan cities. In this aspect, the drivers can be evaluated in their own living spaces and working conditions.

  14. 以市场机制倒逼出租车行业改革的经济学分析%Economic Analysis on the Reform of the Taxi Industry

    Institute of Scientific and Technical Information of China (English)

    黄莺; 孙福明

    2015-01-01

    专车服务这一新生产关系出现,撬动了出租车行业的利益杠杆。十几年的行业问题为何能被“专车”撼动。不难看出,社会财富再分配的严重失衡,是“专车”倒逼出租车行业改革的社会根源。共享经济的到来,使移动信息服务平台(叫车软件公司)解决了消费者和司机信息供需不畅的问题。当前行业的首要任务是处理好增量改革(专车市场)与存量改革(出租车市场)的关系,促使传统出租车行业在“互联网+”下实现跨产业整合的制度创新。%Special train service as the new relations of production, leverage the interests of taxi industry. why the special train service can direct more than ten years of industry problems. Obviously, a serious imbalance in the redistribution of wealth is the main reason of taxi industry reform. At the same time, the current sharing economy make the special train service company can connect consumers and driver. The primary task of the current industry is to deal with the incremental reform and stock reform, and promote the traditional taxi industry in the“Internet+” background, to achieve system innovation of cross industry integration.

  15. Aging of control and service air compressors and dryers used in nuclear power plants

    Energy Technology Data Exchange (ETDEWEB)

    Moyers, J.C. (Oak Ridge National Lab., TN (USA))

    1990-07-01

    This report was produced under the Detection of Defects and Degradation Monitoring of Nuclear Plant Safety Equipment element of the Nuclear Plant Aging Research Program. This element includes the identification of practical and cost-effective methods for detecting, monitoring, and assessing the severity of time-dependent degradation (aging) of control and service air compressors and dryers in nuclear power plants. These methods are to provide capabilities for establishing degradation trends prior to failure and developing guidance for effective maintenance. The topics of this Phase 1 assessment report are failure modes and causes resulting from aging, manufacturer--recommended maintenance and surveillance practices, and measurable parameters (including functional indicators) for use in assessing operational readiness, establishing degradation trends, and detecting incipient failure. the results presented are based on information derived from operating experience records, manufacturer-supplied information, and input from plant operators. For each failure mode, failure causes are listed by subcomponent, and parameters potentially useful for detecting degradation that could lead to failure are identified. 13 refs., 9 figs., 16 tabs.

  16. The Ontario Energy Board`s draft standard supply service code: effects on air quality

    Energy Technology Data Exchange (ETDEWEB)

    Gibbons, J.; Bjorkquist, S. [Ontario Clean Air Alliance, Toronto, ON (Canada)

    1999-06-29

    The Ontario Clean Air Alliance (OCAA), a coalition of 67 organizations, takes issue with the Ontario Energy Board`s draft document `Standard Supply Service Code`, particularly sections 2.2.2. and 2.5.2 which they claim are not in the public interest unless the Ontario government implements the OCAA`s recommended emission caps. The alliance is of the view that without strict new environmental regulations the proposed Code would encourage the use of coal for electricity generation. Public health, the environment, consumer interests, job creation and promotion of a competitive electricity market would all be jeopardized by this development, the alliance states. The argument is supported by extensive reference to the Final Report of the Ontario Market Design Committee (MDC) which also emphasized the importance of combining the introduction of competition with appropriate environmental regulations, singling out the emission cap and trade program, and recommending that it be launched concurrently with the electricity market opening for competition. The view of the MDC was that public support for restructuring would not be forthcoming in the absence of regulatory measures to control power plant emissions. 25 refs.

  17. Agent-based organizational modelling for analysis of safety culture at an air navigation service provider

    International Nuclear Information System (INIS)

    Assessment of safety culture is done predominantly by questionnaire-based studies, which tend to reveal attitudes on immaterial characteristics (values, beliefs, norms). There is a need for a better understanding of the implications of the material aspects of an organization (structures, processes, etc.) for safety culture and their interactions with the immaterial characteristics. This paper presents a new agent-based organizational modelling approach for integrated and systematic evaluation of material and immaterial characteristics of socio-technical organizations in safety culture analysis. It uniquely considers both the formal organization and the value- and belief-driven behaviour of individuals in the organization. Results are presented of a model for safety occurrence reporting at an air navigation service provider. Model predictions consistent with questionnaire-based results are achieved. A sensitivity analysis provides insight in organizational factors that strongly influence safety culture indicators. The modelling approach can be used in combination with attitude-focused safety culture research, towards an integrated evaluation of material and immaterial characteristics of socio-technical organizations. By using this approach an organization is able to gain a deeper understanding of causes of diverse problems and inefficiencies both in the formal organization and in the behaviour of organizational agents, and to systematically identify and evaluate improvement options.

  18. 76 FR 2744 - Disclosure of Code-Share Service by Air Carriers and Sellers of Air Transportation

    Science.gov (United States)

    2011-01-14

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION... agents must inform the consumer of the code-share service ``before booking transportation'' and state... global distribution systems, which may be assisting travel agents to establish airline ticket sales...

  19. Signal balancing by the CetABC and CetZ chemoreceptors controls energy taxis in Campylobacter jejuni.

    Directory of Open Access Journals (Sweden)

    Mark Reuter

    Full Text Available The coupling of environmental sensing to flagella-mediated directed motility allows bacteria to move to optimum environments for growth and survival, either by sensing external stimuli (chemotaxis or monitoring internal metabolic status (energy taxis. Sensing is mediated by transducer-like proteins (Tlp, either located in the membrane or in the cytoplasm, which commonly influence motility via the CheA-CheY chemotaxis pathway. In this study we have investigated the role of PAS-domain-containing intracellular Tlp-sensors in energy taxis of the food-borne pathogen Campylobacter jejuni, using plate- and tube-based assays utilising the conversion of the redox indicator dyes triphenyl tetrazolium chloride (TTC and resazurin. Inactivation of the genes encoding the Campylobacter Energy Taxis system (CetA (Tlp9 and CetB (Aer2 in C. jejuni strain NCTC 11168 resulted in reduced taxis. Inactivation of the cj1191c gene, encoding the CetB homolog CetC (Aer1, did not affect taxis per se, but the cetC gene complemented a cetB mutant in trans, indicating that CetC can form a functional signal transduction complex with CetA in the absence of CetB. Inactivation of both CetB and CetC resulted in greatly reduced taxis confirming the role of CetC in energy taxis. Inactivation of the cj1110c gene, encoding Tlp8 (CetZ, a cytoplasmic sensor with two PAS-domains, resulted in increased taxis, a phenotype opposite to that of CetAB. Inactivation of the cheA gene resulted in the same overall phenotype as the cetAB mutant in both wild-type and cetZ backgrounds, suggesting that both systems use the CheA system for signal transduction. Absence of both CetAB and CetZ resulted in the cetAB taxis phenotype, suggesting that CetZ is subordinate to CetAB. In conclusion, we present evidence that C. jejuni balances the input from two counteracting PAS-domain-containing sensory systems to position itself for optimal usage of energy resources.

  20. Taxi Fleet Renewal in Cities with Improved Hybrid Powertrains: Life Cycle and Sensitivity Analysis in Lisbon Case Study

    Directory of Open Access Journals (Sweden)

    António P. Castel-Branco

    2015-09-01

    Full Text Available Stringent emissions regulations in cities and the high amount of daily miles driven by taxi vehicles enforce the need to renew these fleets with more efficient and cleaner technologies. Hybrid vehicles are potential candidates due to their enhanced powertrain, and slower battery depletion and fewer lifetime issues, relative to full electric vehicles. This paper proposes a methodology to analyze the best theoretical hybrid powertrain candidate with maximum in-use efficiency, minimum life cycle greenhouse gas emissions, and minimum additional cost, for a Lisbon taxi fleet case study. A multi-objective genetic algorithm integrated with a vehicle simulator is used to achieve several trade-off optimal solutions for different driving patterns. Potential improvements in taxi carbon footprint are discussed as a function of its lifetime, urban/extra-urban driving and maintenance/fuel life cycle uncertainty. Hybrid powertrains reveal to be advantageous comparatively to the conventional vehicle, especially in urban conditions. Specifically optimized solutions could reduce in-use energy consumption by 43%–47% in urban driving, and 27%–34% in extra-urban driving conditions, and reduce life cycle emissions by 47%–49% and 34%–36% respectively, relative to the conventional taxi. A financial gain of 50 $/km/fleet in extra-urban and 226 $/km/fleet in urban routes could be achieved by replacing the taxi fleet with the optimal solutions.

  1. Commuting and communication: An investigation of taxi drivers’ experiences, attitudes and beliefs about passengers with communication disorders

    Directory of Open Access Journals (Sweden)

    Sianne Green

    2015-02-01

    Full Text Available Background: One of the most popular means of public transport within South Africa is mini-bus taxis.Objectives: As South Africa is made up of diverse cultures, religions and beliefs, the aim of this study was to explore Johannesburg based taxi drivers’ experiences of beliefs about, and attitudes towards passengers who have a communication disability.Method: Semi-structured interviews were conducted with 10 mini-bus taxi drivers.Results: Interviews revealed that almost all the taxi drivers had encountered passengers with a communication disability, and had an awareness of passengers with a hearing disability as opposed to a speech disability. Furthermore mini-bus taxi drivers generally held a positive view of their passengers with a communication disability.Conclusion: Study findings contribute to existing literature within the fields of speech pathology and audiology, advocacy groups and policy makers, particularly research studies on participation experiences of persons with communication disabilities related to transportation access. The results of the study should also provide a foundation for disability policy development initiatives with the aim of increasing levels of public awareness.[Full article text to follow.

  2. Economic Analysis on Value Chain of Taxi Fleet with Battery-Swapping Mode Using Multiobjective Genetic Algorithm

    Directory of Open Access Journals (Sweden)

    Guobao Ning

    2012-01-01

    Full Text Available This paper presents an economic analysis model on value chain of taxi fleet with battery-swapping mode in a pilot city. In the model, economic benefits of charging-swapping station group, taxi company, and taxi driver in the region have been taken into consideration. Thus, the model is a multiobjective function and multiobjective genetic algorithm is used to solve this problem. According to the real data collected from the pilot city, the multiobjective genetic algorithm is tested as an effective method to solve this problem. Furthermore, the effects of price of electricity, price of battery package, life cycle of battery package, cost of battery-swapping devices and infrastructure, and driving mileage per day on the benefits of value holders are analyzed, which provide theoretical and practical reference for the deployment of electric vehicles, for the national subsidy criteria adjusment, technological innovation instruction, commercial mode selection, and infrastructure construction.

  3. The protein interaction network of a taxis signal transduction system in a Halophilic Archaeon

    Directory of Open Access Journals (Sweden)

    Schlesner Matthias

    2012-11-01

    Full Text Available Abstract Background The taxis signaling system of the extreme halophilic archaeon Halobacterium (Hbt. salinarum differs in several aspects from its model bacterial counterparts Escherichia coli and Bacillus subtilis. We studied the protein interactions in the Hbt. salinarum taxis signaling system to gain an understanding of its structure, to gain knowledge about its known components and to search for new members. Results The interaction analysis revealed that the core signaling proteins are involved in different protein complexes and our data provide evidence for dynamic interchanges between them. Fifteen of the eighteen taxis receptors (halobacterial transducers, Htrs can be assigned to four different groups depending on their interactions with the core signaling proteins. Only one of these groups, which contains six of the eight Htrs with known signals, shows the composition expected for signaling complexes (receptor, kinase CheA, adaptor CheW, response regulator CheY. From the two Hbt. salinarum CheW proteins, only CheW1 is engaged in signaling complexes with Htrs and CheA, whereas CheW2 interacts with Htrs but not with CheA. CheY connects the core signaling structure to a subnetwork consisting of the two CheF proteins (which build a link to the flagellar apparatus, CheD (the hub of the subnetwork, two CheC complexes and the receptor methylesterase CheB. Conclusions Based on our findings, we propose two hypotheses. First, Hbt. salinarum might have the capability to dynamically adjust the impact of certain Htrs or Htr clusters depending on its current needs or environmental conditions. Secondly, we propose a hypothetical feedback loop from the response regulator to Htr methylation made from the CheC proteins, CheD and CheB, which might contribute to adaptation analogous to the CheC/CheD system of B. subtilis.

  4. Factors associated with drug use among male motorbike taxi drivers in urban Vietnam.

    Science.gov (United States)

    Nguyen, Huy Van; Vu, Thinh Toan; Pham, Ha Nguyen

    2014-08-01

    A cross-sectional study was conducted on a sample of 291 male motorbike taxi drivers (MMTDs) recruited through social mapping technique in Hanoi, Vietnam, for face-to-face interviews to examine factors associated with drug use among MMTDs using Information-Motivation-Behavioral skills (IMB) model. Among 291 MMTDs, 17.18% reported drug use sometime in their lives, 96% of whom were drug injectors. Being depressed, being originally borne in urban cities, currently residing in rural areas, having a longer time living apart from their wives/lovers, using alcohol, following Buddhism, and reporting lower motivation of HIV prevention predict significantly higher odds of uptaking drugs. PMID:24601783

  5. An Electric taxi fleet charging system using second life electric car batteries simulation and economical approach

    OpenAIRE

    Canals Casals, Lluc; Amante García, Beatriz

    2013-01-01

    The industrial car manufacturers see in the high battery price an im-portant obstacle for an electric vehicle mass selling, thus mass production. There-fore, in order to find some cost relieves and better selling opportunities, they look and push forward to find profitable second battery uses. This study presents a sim-ulation and an economical approach for an electric taxi fleet charging system, us-ing these “old” electric car batteries, implemented in the city of Barcelona. The simulation w...

  6. A feasibility study of using Biomethane as an alternative fuel for taxis in the Reykjavík capital area

    OpenAIRE

    Hannes Arnórsson

    2011-01-01

    Price of gasoline at the dispenser in Iceland has never been higher than today. This paper investigates the economic feasibility of using biomethane as an alternative fuel for the taxi fleet in the Reykjavík capital area. Cases of different groups of taxis were set up on the basis of existing data of the fleet and the financial feasibility evaluated. The cases were divided into separate groups based on the emission classes and various scenarios and sensitivity analysis applied. The research l...

  7. A lightweight neighbor-info-based routing protocol for no-base-station taxi-call system.

    Science.gov (United States)

    Zhu, Xudong; Wang, Jinhang; Chen, Yunchao

    2014-01-01

    Since the quick topology change and short connection duration, the VANET has had unstable routing and wireless signal quality. This paper proposes a kind of lightweight routing protocol-LNIB for call system without base station, which is applicable to the urban taxis. LNIB maintains and predicts neighbor information dynamically, thus finding the reliable path between the source and the target. This paper describes the protocol in detail and evaluates the performance of this protocol by simulating under different nodes density and speed. The result of evaluation shows that the performance of LNIB is better than AODV which is a classic protocol in taxi-call scene. PMID:24737984

  8. The design of road and air networks for express service providers

    NARCIS (Netherlands)

    Meuffels, W.J.M.

    2015-01-01

    Express service providers move packages (i.e. parcels, documents, or pieces of freight) from senders to receivers under various but guaranteed service level agreements. These service level agreements specify date and time of collection at the sender, and receiving at the customer. Research in this d

  9. 对出租车行业特许模式的经济学和行政法学分析%Exploring the franchise system of taxi industry——on the basis of administrative law and economics

    Institute of Scientific and Technical Information of China (English)

    章亮亮

    2012-01-01

    Problems occur in taxi industry every year in our country,The root is the franchise system.From the angle of administrative law and economics perspective,this article discusses the legitimacy and rationality of the quantitative control of the taxi industry.In the view of administrative law perspective,the taxi industry does not belong to the administrative licensing scope of "administrative licensing law".The implementation of quantitative control also violates the principle of administration.In the view of economics,the quantitative control of the taxi industry can not eliminate the negative externality,but can lead to the rent-seeking behaviors and the loss of social welfare.The government will consume more manpower and material resources in order to maintain the control effect,which directly leads to the increase of the social cost.In the world,the practice of the relaxation of the quantity control has proved that it will do no harm to the safety and service level,also will not cause the economic disorder with the implementation of strict service standards and safety control.Only let the taxi industry return back to a normal competitive industry,we can really solve the problems continuing appearing of the taxi industry.%我国出租车行业诸多问题年年不绝,深层原因都和作为该行业制度核心的特许经营权制度密不可分。本文从行政法学和经济学视角,对出租车行业实行数量管制的合法性和合理性进行探讨。从行政法学视角看,出租车行业不属于《行政许可法》规定的行政特许范围,实施数量管制也违反了行政法学上的依法行政原则和比例原则;从经济学视角看,数量管制无法消除出租车行业的负外部性,反而导致权力寻租和社会福利损失,政府为了维持管制效果会耗费更多人力物力,直接导致社会成本增加。世界各国放松数量管制的实践证明,只要实施严格的服务和安全标

  10. A study of instability in a miniature flying-wing aircraft in high-speed taxi

    Directory of Open Access Journals (Sweden)

    Song Lei

    2015-06-01

    Full Text Available This study investigates an instability that was observed during high-speed taxi tests of an experimental flying-wing aircraft. In order to resolve the reason of instability and probable solution of it, the instability was reproduced in simulations. An analysis revealed the unique stability characteristics of this aircraft. This aircraft has a rigid connection between the nose wheel steering mechanism and an electric servo, which is different from aircraft with a conventional tricycle landing gear system. The analysis based on simulation results suggests that there are two reasons for the instability. The first reason is a reversal of the lateral velocity of the nose wheel. The second reason is that the moment about the center of gravity created by the lateral friction force from the nose wheel is larger than that from the lateral friction force from the main wheels. These problems were corrected by changing the ground pitch angle. Simulations show that reducing the ground pitch angle can eliminate the instability in high-speed taxi.

  11. Assessment and cleanup of the Taxi Strip waste storage area at LLNL [Lawrence Livermore National Laboratory

    International Nuclear Information System (INIS)

    In September 1982 the Hazards Control Department of the Lawrence Livermore National Laboratory (LLNL) began a final radiological survey of a former low-level radioactive waste storage area called the Taxi Strip so that the area could be released for construction of an office building. Collection of soil samples at the location of a proposed sewer line led to the discovery of an old disposal pit containing soil contaminated with low-level radioactive waste and organic solvents. The Taxi Strip area was excavated leading to the discovery of three additional small pits. The clean-up of Pit No. 1 is considered to be complete for radioactive contamination. The results from the chlorinated solvent analysis of the borehole samples and the limited number of samples analyzed by gas chromatography/mass spectrometry indicate that solvent clean-up at this pit is complete. This is being verified by gas chromatography/mass spectrometry analysis of a few additional soil samples from the bottom sides and ends of the pit. As a precaution, samples are also being analyzed for metals to determine if further excavation is necessary. Clean-up of Pits No. 2 and No. 3 is considered to be complete for radioactive and solvent contamination. Results of analysis for metals will determine if excavation is complete. Excavation of Pit No. 4 which resulted from surface leakage of radioactive contamination from an evaporation tray is complete

  12. INFLUENCE OF ACUPUNCTURE ON BRAIN-TAXIS OF TETRAMETHYLPYRAZINE IN ACUTE CEREBRAL INFARCTION RATS

    Institute of Scientific and Technical Information of China (English)

    崔荣秀; 陈以国; 谷雨

    2003-01-01

    Purpose: To observe the effect of acupuncture on the brain-taxis of tetrarmethylpyrazine (TMP) and toexplore into the underlying mechanisms of combined action of acupuncture and medicine in the treatment of acute cere-bral ischemia. Methods: 37 male Wistar rats were randomly divided into normal control group (n= 10), sham-operationgroup (n= 10), acute cerebral ischemia (ACI) + drug group (model group, n=8)and ACl+drug+acupuncture group(acupuncture group, n=9). Rat ACl model was established by using photochemical method. "Neiguan"(PC 6) and"Shuigou"(GV 26) were punctured and stimulated with both hand manipulation and electroacupuncture, 30 min and16hrs after ACI. TMP was given to the rats of the later 2 groups using gastric perfusion method. High pressure chro-matography (HPLC) was used to detect the target absorption level of TMP in the brain. Results: The content of TMP inthe brain in acupuncture group was significantly higher than that in model group (P<0.01), suggesting that acupunc-ture can strengthen the brain-taxis of TMP in ACl rats, and combined administration of acupuncture and Chinese drugmaybe work better for treatment of acute cerebral infarction. Conclusion: Acupuncture can strengthen the chano-taxisof TMP to the brain in ACl rats.

  13. The Scope of State Aid and Public Service Obligation for Airports and Air Carriers in the Light of European Law

    Directory of Open Access Journals (Sweden)

    Grzegorz Zajac

    2015-10-01

    Full Text Available Public aid is the kind of advantage granted directly or indirectly for private companies from State resources. The European Commission prerogative to control the transfer of public resources by the public authorities (national or local for the benefit of private undertakings, as a general rule, there is an obligation of notification, as provided for in article 108 (3 of the Treaty on the Functioning of the European Union (TFEU. It should be noted in the beginning that State aid given to undertakings conducting economic activity is, in principle, incompatible with the European Union’ law, as provided for in article. 107 (1 of the TFEU. There are certain situations that the granting of public funds will not constitute “public aid” within the meaning of article 107 of the TFEU and, therefore, will not violate European rules in this field. One of them are activities related to the exercise of the prerogatives of the public authority (security, safety, customs, air traffic control. The other is related to the exercise of services in general economic interest. This could be an example of public service obligation (PSO. This service can be applied in the light of the provisions of European law on two types of action on air routes, and on airport managing body. The imposition of a PSO to the specified route is the support given by the State to the outermost regions that due to their unfavourable geographical position cannot fully develop economically, and no carrier had not been interested in performing air services to that region due to the lack of cost effectiveness. Some activities at the airport may be considered as activities of general economic interest.

  14. Looking for the minimum efficiency of fibrous air filters during their service life

    OpenAIRE

    Tronville, Paolo Maria

    2012-01-01

    Electret fibrous air filter media achieve high efficiencies while maintaining low air flow resistance by incorporating electrostatic charges on their fibers. However, captured ultrafine particles reduce this electrostatic enhancement. It is important to evaluate the behavior of such media when their electrostatic enhancement has been completely suppressed, leaving only "mechanical" effects such as sieving, impaction, interception and diffusion. Existing standards EN779:2002 and ASHRAE 52.2-20...

  15. The Shift of the Demand for Air Transport Services when Prices Change

    Directory of Open Access Journals (Sweden)

    Dan Pauna

    2011-05-01

    Full Text Available The decrease of the charge/unit price determines the extension of demand, as well as the increaseof the amount of a product/service required on the market. The relationship between the evolution ofcharge/unit price (the independent variable and the market demand of a good/service (the dependentvariable can be illustrated in a table, a function or a graph. The causal relationships between the change ofthe charge/unit price of a good/service and the change of the amount required represent the essence of thegeneral law of demand. This law is not fully valid when it comes to services. There are situations whichapparently contradict the general law of demand: there are buyers who mostly use the services of a companyeven if this asks for higher prices on the grounds of saving time, which reflects the relationship between theprice and the quality of the service offered. Price increase can be accompanied by the increase of the quantityrequired when the difference in price can be compensated for by the growth in quality. The increase ordecrease of demand can be determined, at a certain offer, by the change of the charge/unit price of agood/service. The following paper deals with the limits of the demand shift under the conditions of a pricechange. The direct competition between the airlines offering full services (classical companies and those thatdo not offer any auxiliary services (low cost is increasing in the entire world.

  16. Effect of fee-for-service air-conditioning management in balancing thermal comfort and energy usage.

    Science.gov (United States)

    Chen, Chen-Peng; Hwang, Ruey-Lung; Shih, Wen-Mei

    2014-11-01

    Balancing thermal comfort with the requirement of energy conservation presents a challenge in hot and humid areas where air-conditioning (AC) is frequently used in cooling indoor air. A field survey was conducted in Taiwan to demonstrate the adaptive behaviors of occupants in relation to the use of fans and AC in a school building employing mixed-mode ventilation where AC use was managed under a fee-for-service mechanism. The patterns of using windows, fans, and AC as well as the perceptions of students toward the thermal environment were examined. The results of thermal perception evaluation in relation to the indoor thermal conditions were compared to the levels of thermal comfort predicted by the adaptive models described in the American Society of Heating, Refrigerating, and Air-Conditioning Engineers Standard 55 and EN 15251 and to that of a local model for evaluating thermal adaption in naturally ventilated buildings. A thermal comfort-driven adaptive behavior model was established to illustrate the probability of fans/AC use at specific temperature and compared to the temperature threshold approach to illustrate the potential energy saving the fee-for-service mechanism provided. The findings of this study may be applied as a reference for regulating the operation of AC in school buildings of subtropical regions.

  17. US EPA Office of Research and Development Community-Focused Exposure and Risk Screening Tool (C-FERST) Air Pollutants 2011 web mapping service

    Data.gov (United States)

    U.S. Environmental Protection Agency — This map service displays all air-related layers used in the USEPA Community/Tribal-Focused Exposure and Risk Screening Tool (C/T-FERST) mapping application...

  18. US EPA Office of Research and Development Community-Focused Exposure and Risk Screening Tool (C-FERST) Air web mapping service

    Data.gov (United States)

    U.S. Environmental Protection Agency — This map service displays all air-related layers used in the USEPA Community/Tribal-Focused Exposure and Risk Screening Tool (C/T-FERST) mapping application...

  19. The xylanase inhibitor TAXI-III counteracts the necrotic activity of a Fusarium graminearum xylanase in vitro and in durum wheat transgenic plants.

    Science.gov (United States)

    Moscetti, Ilaria; Faoro, Franco; Moro, Stefano; Sabbadin, Davide; Sella, Luca; Favaron, Francesco; D'Ovidio, Renato

    2015-08-01

    The xylanase inhibitor TAXI-III has been proven to delay Fusarium head blight (FHB) symptoms caused by Fusarium graminearum in transgenic durum wheat plants. To elucidate the molecular mechanism underlying the capacity of the TAXI-III transgenic plants to limit FHB symptoms, we treated wheat tissues with the xylanase FGSG_03624, hitherto shown to induce cell death and hydrogen peroxide accumulation. Experiments performed on lemmas of flowering wheat spikes and wheat cell suspension cultures demonstrated that pre-incubation of xylanase FGSG_03624 with TAXI-III significantly decreased cell death. Most interestingly, a reduced cell death relative to control non-transgenic plants was also obtained by treating, with the same xylanase, lemmas of TAXI-III transgenic plants. Molecular modelling studies predicted an interaction between the TAXI-III residue H395 and residues E122 and E214 belonging to the active site of xylanase FGSG_03624. These results provide, for the first time, clear indications in vitro and in planta that a xylanase inhibitor can prevent the necrotic activity of a xylanase, and suggest that the reduced FHB symptoms on transgenic TAXI-III plants may be a result not only of the direct inhibition of xylanase activity secreted by the pathogen, but also of the capacity of TAXI-III to avoid host cell death.

  20. Quantifying the benefits of vehicle pooling with shareability networks

    OpenAIRE

    Santi, Paolo; Resta, Giovanni; Szell, Michael; Sobolevsky, Stanislav; Strogatz, Steven H.; Ratti, Carlo

    2013-01-01

    Taxi services are a vital part of urban transportation, and a considerable contributor to traffic congestion and air pollution causing substantial adverse effects on human health. Sharing taxi trips is a possible way of reducing the negative impact of taxi services on cities, but this comes at the expense of passenger discomfort quantifiable in terms of a longer travel time. Due to computational challenges, taxi sharing has traditionally been approached on small scales, such as within airport...

  1. Using an innovative price model to leverage the business model – The case of price model innovation in the largest Swedish taxi company

    Directory of Open Access Journals (Sweden)

    Carl-Johan Petri

    2014-08-01

    Full Text Available Purpose: The purpose of the paper is to describe how the biggest Swedish taxi company (Taxi Kurir developed an innovative price model to leverage the business model. Design/methodology/approach : The empirical data in the article describe Taxi Kurir’s development of a new price model. Data about the Swedish taxi market and about Taxi Kurir has been compiled though interviews and document studies. Detailed information about the background, development and implementation of Taxi Kurir’s new price model has been captured through interviews with representatives from Taxi Kurir. Findings : Based on both the empirical example, and other investigations, we have found that a company can create substantial changes in their price model, by just changing some of its basic characteristics. A well designed price model can contribute to leveraging the intentions of the business model. Practical implications : Most academic and practical texts about business models consider pricing to be an important component. However, they typically do not refer to the specifics of the price- or revenue models. According to the literature review in this paper, and the empirical findings, the configuration of a company’s price model should be aligned with its business model. This will contribute to leveraging the business model. Originality/value: The Swedish taxi market is one of the most deregulated in the world. Differently from most other countries, any individual or company can start and operate a taxi business. This case offers a unique description on how the biggest company in the market responded to the competition by introducing a fundamentally new price model, by making a small change in one of the dimensions in their existing price model.

  2. The Shift of the Demand for Air Transport Services when Prices Change

    OpenAIRE

    Dan Pauna

    2011-01-01

    The decrease of the charge/unit price determines the extension of demand, as well as the increaseof the amount of a product/service required on the market. The relationship between the evolution ofcharge/unit price (the independent variable) and the market demand of a good/service (the dependentvariable) can be illustrated in a table, a function or a graph. The causal relationships between the change ofthe charge/unit price of a good/service and the change of the amount required represent the...

  3. The development of long-haul air services from regional and secondary airports in Europe

    OpenAIRE

    Dennis, Nigel

    2005-01-01

    In recent years there has been tremendous interest in the growth of low-cost airlines in Europe operating from regional and secondary airports. These have been entirely in the short-haul sector, however. Intercontinental services remain dominated by a few large airports such as London Heathrow, Frankfurt, Paris CDG and Amsterdam. This paper examines the recent development of long-haul services and shows that some of the medium sized European airports have seen their network reduced in the las...

  4. 14 CFR 375.50 - Transit flights; scheduled international air service operations.

    Science.gov (United States)

    2010-01-01

    ... and intermediate point to be served). (4) A statement as to whether or not any advertisement or publication of the proposed operations has been made in the United States. If there has been any advertisement... ownership and effective control are vested in nationals of a State party to the International Air...

  5. RCC Arch Dam Structure on the Taxi River and Water Storage Measure During Construction

    Institute of Scientific and Technical Information of China (English)

    刘光廷; 李鹏辉; 胡昱; 张富德; 谢树南

    2002-01-01

    The new structure of roller compacted concrete (RCC) arch dams is presented for extremely cold and earthquake prone areas. The influence of construction plans and improved materials on the stresses in the Taxi River dam is also given. Earlier impoundment of water is shown to not only benefit the engineering design but also improve the stresses during construction in winter. Low cement content in the concrete and artificial short joints improved the monolithic structure and the transmitted forces. The concrete plug installed in the first cooled part of the arch dam provides excellent force transmission in the arch, which increases the monolith of the earlier arch, reduces the increasing thermal stresses that occur later, and improves the deformation flexibility of the dam.

  6. Cross-Cultural Perspectives of Service Quality and Risk in Air Transportation

    Science.gov (United States)

    Cunningham, Lawrence F.; Young, Clifford E.; Lee, Moonkyu

    2002-01-01

    This study compares US and Korean customers in terms of their perceptions of airline service quality based on SERVPERF and industry-based measures, as well as their perceptions of risks involved in the airline choice. SERVPERF is a set of multi-dimensional measures of customer evaluations of service quality. The results indicate that: (1) US passengers are generally more satisfied with their airline service than Korean customers on most of the SERVPERF dimensions; (2) Koreans are generally more satisfied with the bumping procedures whereas US participants feel more satisfied with the airline's baggage handling, operations/safety, and connections; and (3) US participants perceive higher levels of performance and financial risks whereas Koreans feel greater social risk in choosing an airline. This study also examines the SERVPERF, industry-based measure, and perceived risk in predicting customer satisfaction with, and intention to repatronize the airline. The results suggest that US customers consider service reliability, in-flight comfort, and connections as the key factors determining satisfaction with airline service whereas Korean passengers generally regard reliability, assurance, and risk factors as predictors of satisfaction. The determining factors of customer intention to repatronize the airline are reliability and empathy for US, and reliability and overall risk for Korean customers. The study demonstrates the applicability of SERVPERF as a cross-cultural tool and indicates the importance of perceived risk in cross-cultural studies.

  7. Sociodemographic factors associated with aggressive driving behaviors of 3-wheeler taxi drivers in Sri Lanka.

    Science.gov (United States)

    Akalanka, Ediriweera Chintana; Fujiwara, Takeo; Desapriya, Ediriweera; Peiris, Dinithi C; Scime, Giulia

    2012-01-01

    Little is known about the nature and scope of aggressive driving in developing countries. The objective of this study is to specifically examine the sociodemographic factors associated with aggressive driving behavior among 3-wheeler taxi drivers in Sri Lanka. Convenience samples of 3-wheeler taxi drivers from Rathnapura, Ahaliyagoda, Sri Lanka were surveyed from June to August 2006. Analyses included bivariate and multivariate logistic regression. Drivers with less than high school education were 3.5 times more likely to drive aggressively (odds ratio [OR] = 3.46; 95% confidence interval [CI] = 1.08, 11.1). Single drivers were 9 times more likely to run red lights (OR = 8.74; 95% CI = 2.18, 35.0), and being single was a major risk factor for drunk driving (OR = 4.80; 95% CI = 1.23, 18.7). Furthermore, high school completers were 4 times more likely to bribe a policeman (OR = 4.27; 95% CI = 1.23, 14.9) when caught violating the road rules. Aggressive driving and risk-taking behavior are amenable to policy initiatives, and preventive programs targeted at key groups could be used to improve road safety in Sri Lanka. This study demonstrates that aggressive driving behavior is associated with sociodemographic factors, including the level of education, marital status, and other socioeconomic factors. Hence, economic factors should be addressed to find solutions to traffic-related issues. It will be the government's and policy makers' responsibility to try and understand the economic factors behind risky road behavior and bribe-taking behavior prior to legislating or enforcing new laws. PMID:20685667

  8. Optimizing Air Transportation Service to Metroplex Airports. Par 2; Analysis Using the Airline Schedule Optimization Model (ASOM)

    Science.gov (United States)

    Donoue, George; Hoffman, Karla; Sherry, Lance; Ferguson, John; Kara, Abdul Qadar

    2010-01-01

    The air transportation system is a significant driver of the U.S. economy, providing safe, affordable, and rapid transportation. During the past three decades airspace and airport capacity has not grown in step with demand for air transportation; the failure to increase capacity at the same rate as the growth in demand results in unreliable service and systemic delay. This report describes the results of an analysis of airline strategic decision-making that affects geographic access, economic access, and airline finances, extending the analysis of these factors using historic data (from Part 1 of the report). The Airline Schedule Optimization Model (ASOM) was used to evaluate how exogenous factors (passenger demand, airline operating costs, and airport capacity limits) affect geographic access (markets-served, scheduled flights, aircraft size), economic access (airfares), airline finances (profit), and air transportation efficiency (aircraft size). This analysis captures the impact of the implementation of airport capacity limits, as well as the effect of increased hedged fuel prices, which serve as a proxy for increased costs per flight that might occur if auctions or congestion pricing are imposed; also incorporated are demand elasticity curves based on historical data that provide information about how passenger demand is affected by airfare changes.

  9. Airports and Airfields, Shows airport runway and taxi with elevation information as well as runway numbers and names., Published in unknown, Johnson County AIMS.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Airports and Airfields dataset, was produced all or in part from Orthoimagery information as of unknown. It is described as 'Shows airport runway and taxi with...

  10. 76 FR 77939 - Proposed Provision of Navigation Services for the Next Generation Air Transportation System...

    Science.gov (United States)

    2011-12-15

    ... satellites were to go out of service. WAAS is a satellite-based augmentation system (SBAS) standardized by... Global Positioning System (GPS) and the Wide Area Augmentation System (WAAS). The FAA plans to retain an... for Category I instrument operations with WAAS localizer performance with vertical guidance...

  11. Reduction of particle emissions from light duty vehicles and from taxies; Reduktion af partikelelemissioner fra varebiler og taxier

    Energy Technology Data Exchange (ETDEWEB)

    Nielsen, Johan; Henriques, M.; Weibel, T.G. [TetraPlan A/S (Denmark)

    2006-11-03

    This project, 'Reduction of particle emissions from light duty vehicles and from taxies', analyses different strategies to reduce the particle emission, their effect for particle emissions, and the resulting cost for the society and for the companies. The project describes the EU regulation of emissions, the possibilities of reducing the emissions via special requirements in environmental zones and the Danish taxation of light duty vehicles. Further, the project includes interviews with owners of light duty vehicles and taxies and also with Danish producers of particle filters. The strategies analysed in the scenarios include: 1) Promotion of particle filters; 2) Shift from diesel to gasoline and; 3) Downsizing. The effects for particle emissions and for mortality are described. Further, the costs and benefits for the society and the cost for the companies are evaluated. The effects of the scenarios are analysed, both for initiatives implemented at a national level and for implementation in an environmental zone in the municipality of Copenhagen. The main results are that the socioeconomic benefits in the year 2012 are greater than the costs, if taxis and light duty vehicles have filters installed and if they are driving in the Copenhagen area. For light duty vehicles it is only profitable, if the prices of the filters fall to the price level that is expected in the future in the study. Further, the analysis shows that for light duty vehicles and taxies driving all over the country, the socioeconomic benefits achieved by installing particle filters are too small to cover the costs. The analysis shows that it is also profitable socio-economically to change from diesel to petrol for light duty vehicles and for taxies (except taxies driving nationally). The analysis is based on the producer prices including the general net tax level, while the specific taxes are not included. From the point of view of the companies it is not profitable to change to petrol

  12. Searching for preventive measures of cardiovascular events in aged Japanese taxi drivers--the daily rhythm of cardiovascular risk factors during a night duty day.

    Science.gov (United States)

    Hattori, M; Azami, Y

    2001-12-01

    Previous studies have shown that Japanese taxi drivers are exposed to more risk factors and have a higher mortality rate due to cardiovascular disease than other occupational groups. We investigated the effect of night taxi driving with a view to preventing acute events of cardiovascular disease among aged taxi drivers. Twenty-nine taxi drivers (41-67 years old) were examined for urine normetanephrine/creatinine, von Willebrand factor, anti-thrombin III, t-plasminogen activator-plasminogen activator inhibitor 1-complex, hematocrit, blood glucose and blood pressure in the morning and at midnight during a duty day and in the following morning. At the same time, the blood pressure and blood glucose of 46 taxi drivers (43-67 years old) in the morning after a night duty with little sleep and in the morning after daytime work and subsequent night sleep were compared. The results obtained indicate that the aggravation of sympathetic nervous system functions with disturbed circadian rhythms, increased blood coagulation and blood concentration, endothelial injury and the elevation of blood glucose at midnight or the next morning were induced by their night work. These conditions are supposed to favour acute vascular events in aged taxi drivers. Preventive measures considered include social support for anticoagulant food and water intake, short exercise and walking as well as taking a rest and a nap during night work.

  13. Very-High-Cycle-Fatigue of in-service air-engine blades, compressor and turbine

    Science.gov (United States)

    Shanyavskiy, A. A.

    2014-01-01

    In-service Very-High-Cycle-Fatigue (VHCF) regime of compressor vane and turbine rotor blades of the Al-based alloy VD-17 and superalloy GS6K, respectively, was considered. Surface crack origination occurred at the lifetime more than 1500 hours for vanes and after 550 hours for turbine blades. Performed fractographic investigations have shown that subsurface crack origination in vanes took place inspite of corrosion pittings on the blade surface. This material behavior reflected lifetime limit that was reached by the criterion VHCF. In superalloy GS6K subsurface fatigue cracking took place with the appearance of flat facet. This phenomenon was discussed and compared with specimens cracking of the same superalloy but prepared by the powder technology. In turbine blades VHCF regime appeared because of resonance of blades under the influenced gas stream. Both cases of compressor-vanes and turbine blades in-service cracking were discussed with crack growth period and stress equivalent estimations. Recommendations to continue aircrafts airworthiness were made for in-service blades.

  14. Role of Air Cargo and Road Feeder Services for Regional Airports – Case Studies from the Baltic Sea Region

    Directory of Open Access Journals (Sweden)

    Beifert Anatoli

    2016-06-01

    the regional airports and their possible participation in the air cargo market as a supplement instrument to generate additional revenue also by means of so-called “air trucking” services will be presented and discussed.

  15. "Dammed Taxi Cab"--How Silent Communication in Questionnaires Can Be Understood and Used to Give Voice to Children's Experiences

    Science.gov (United States)

    Alerby, E.; Kostenius, C.

    2011-01-01

    "Dammed taxi cab"--a 12-year-old boy wrote these words in the margins of a questionnaire, and within this paper they will serve as a point of departure for the discussion of the use of questionnaires as a way to voice children's experiences. The overall aim of this paper is to enable understanding of and discuss the use of questionnaires as a way…

  16. Signal Balancing by the CetABC and CetZ Chemoreceptors Controls Energy Taxis in Campylobacter jejuni

    OpenAIRE

    Mark Reuter; van Vliet, Arnoud H. M.

    2013-01-01

    The coupling of environmental sensing to flagella-mediated directed motility allows bacteria to move to optimum environments for growth and survival, either by sensing external stimuli (chemotaxis) or monitoring internal metabolic status (energy taxis). Sensing is mediated by transducer-like proteins (Tlp), either located in the membrane or in the cytoplasm, which commonly influence motility via the CheA-CheY chemotaxis pathway. In this study we have investigated the role of PAS-domain-contai...

  17. Repellent Taxis in Response to Nickel Ion Requires neither Ni2+ Transport nor the Periplasmic NikA Binding Protein▿

    OpenAIRE

    Englert, Derek L.; Adase, Christopher A.; Jayaraman, Arul; Manson, Michael D.

    2010-01-01

    Ni2+ and Co2+ are sensed as repellents by the Escherichia coli Tar chemoreceptor. The periplasmic Ni2+ binding protein, NikA, has been suggested to sense Ni2+. We show here that neither NikA nor the membrane-bound NikB and NikC proteins of the Ni2+ transport system are required for repellent taxis in response to Ni2+.

  18. Taxi drivers' views on risky driving behavior in Tehran: a qualitative study using a social marketing approach.

    Science.gov (United States)

    Shams, Mohsen; Shojaeizadeh, Davoud; Majdzadeh, Reza; Rashidian, Arash; Montazeri, Ali

    2011-05-01

    The use of the social marketing approach for public health issues is increasing. This approach uses marketing concepts borrowed from the principles of commercial marketing to promote beneficial health behaviors. In this qualitative study, four focus groups involving 42 participants were used in consumer research to explore taxi drivers' views on the driving situation and the determinants of risky driving behaviors in Tehran, as well as to gather their ideas for developing a social marketing program to reduce risky driving behaviors among taxi drivers in Tehran, Iran. Participants were asked to respond to questions that would guide the development of a marketing mix, or four Ps (product, price, place and promotion). The discussions determined that the program product should involve avoiding risky driving behaviors through increased attention to driving. They pointed out that developing and communicating with a well-designed persuasive message meant to draw their attention to driving could affect their driving behaviors. In addition, participants identified price, place and promotion strategies. They offered suggestions for marketing nonrisky driving to the target audience. The focus group discussions generated important insights into the values and the motivations that affect consumers' decisions to adopt the product. The focus group guided the development of a social marketing program to reduce risky driving behaviors in taxi drivers in Tehran, Iran. PMID:21376850

  19. Taxi drivers' views on risky driving behavior in Tehran: a qualitative study using a social marketing approach.

    Science.gov (United States)

    Shams, Mohsen; Shojaeizadeh, Davoud; Majdzadeh, Reza; Rashidian, Arash; Montazeri, Ali

    2011-05-01

    The use of the social marketing approach for public health issues is increasing. This approach uses marketing concepts borrowed from the principles of commercial marketing to promote beneficial health behaviors. In this qualitative study, four focus groups involving 42 participants were used in consumer research to explore taxi drivers' views on the driving situation and the determinants of risky driving behaviors in Tehran, as well as to gather their ideas for developing a social marketing program to reduce risky driving behaviors among taxi drivers in Tehran, Iran. Participants were asked to respond to questions that would guide the development of a marketing mix, or four Ps (product, price, place and promotion). The discussions determined that the program product should involve avoiding risky driving behaviors through increased attention to driving. They pointed out that developing and communicating with a well-designed persuasive message meant to draw their attention to driving could affect their driving behaviors. In addition, participants identified price, place and promotion strategies. They offered suggestions for marketing nonrisky driving to the target audience. The focus group discussions generated important insights into the values and the motivations that affect consumers' decisions to adopt the product. The focus group guided the development of a social marketing program to reduce risky driving behaviors in taxi drivers in Tehran, Iran.

  20. A Feasibility Test on Adopting Electric Vehicles to Serve as Taxis in Daejeon Metropolitan City of South Korea

    Directory of Open Access Journals (Sweden)

    Seoin Baek

    2016-09-01

    Full Text Available For realizing sustainable development, EV (Electric Vehicle is currently considered as one of the most promising alternative due to its cleanness and inexhaustibility. However, the development and dissemination of EV has stagnated because it faces major constraints such as battery performance and an excessively long charging time. Thus, this study examined the feasibility of using EVs as taxis by analyzing real data from a pilot project in Daejeon, a metropolitan city in South Korea for proposing the effective way to adopt EV. To reflect reality and improve accuracy, we adopted scenarios and assumptions based on in-depth interviews with groups of experts. The resulting initial benefit-to-cost (B/C ratio for EV taxis is approximately 0.4, which is quite low compared to 0.7 for traditional taxis. However, after incorporating some further assumptions into the calculation, the B/C ratio shifts to approximately 0.7, which is more appropriate for EV adoption. For this improvement to be achieved, the dissemination of a charging infrastructure, improvement of the business model and policy support is strongly needed. Limitations to this work and potential areas for future study are also fully discussed.

  1. Targeted axonal import (TAxI) peptide delivers functional proteins into spinal cord motor neurons after peripheral administration.

    Science.gov (United States)

    Sellers, Drew L; Bergen, Jamie M; Johnson, Russell N; Back, Heidi; Ravits, John M; Horner, Philip J; Pun, Suzie H

    2016-03-01

    A significant unmet need in treating neurodegenerative disease is effective methods for delivery of biologic drugs, such as peptides, proteins, or nucleic acids into the central nervous system (CNS). To date, there are no operative technologies for the delivery of macromolecular drugs to the CNS via peripheral administration routes. Using an in vivo phage-display screen, we identify a peptide, targeted axonal import (TAxI), that enriched recombinant bacteriophage accumulation and delivered protein cargo into spinal cord motor neurons after intramuscular injection. In animals with transected peripheral nerve roots, TAxI delivery into motor neurons after peripheral administration was inhibited, suggesting a retrograde axonal transport mechanism for delivery into the CNS. Notably, TAxI-Cre recombinase fusion proteins induced selective recombination and tdTomato-reporter expression in motor neurons after intramuscular injections. Furthermore, TAxI peptide was shown to label motor neurons in the human tissue. The demonstration of a nonviral-mediated delivery of functional proteins into the spinal cord establishes the clinical potential of this technology for minimally invasive administration of CNS-targeted therapeutics.

  2. [Prevention of cervical and breast cancer in health services and non-governmental organizations in the city of Buenos Aires].

    Science.gov (United States)

    Ponce, Marisa

    2013-08-01

    The article analyzes actions for the prevention of cervical and breast cancer in public, private, and employment-based health services and in non-governmental organizations in the city of Buenos Aires. The article seeks to reflect on the reach and limitations of the approaches implemented in the three subsectors of the health care system and the community to prevent women from suffering or eventually dying as a consequence of these diseases, in the fragmented context of a health system with great heterogeneity in access and deep social inequalities in the use of preventive actions. The study utilizes a broad definition of prevention which integrates education, awareness-building and early detection of pre-carcinogenic and carcinogenic lesions, among other medical and non-medical components. The results were obtained using semi-structured interviews with subjects from public hospitals, employment-based health care services, private medical companies and non-governmental organizations with work in cancer prevention. These results show that contrary to a comprehensive approach, each institution limits its actions to only one aspect of prevention, implementing predominately isolated or disconnected actions inadequate to generate an autonomous and well-informed demand for treatment and health care among women. PMID:23989627

  3. Assessing Patient bypass Behavior Using Taxi Trip Origin–Destination (OD Data

    Directory of Open Access Journals (Sweden)

    Gege Yang

    2016-09-01

    Full Text Available Many patients prefer to use the best hospitals even if there are one or more other hospitals closer to their homes; this behavior is called “hospital bypass behavior”. Because this behavior can be problematic in urban areas, it is important that it be reduced. In this paper, the taxi GPS data of Beijing and Suzhou were used to measure hospital bypass behavior. The “bypass behavior index” (BBI represents the bypass behavior for each hospital. The results indicated that the mean hospital bypass trip distance value ranges from 5.988 km to 9.754 km in Beijing and from 4.168 km to 10.283 km in Suzhou. In general, the bypass shares of both areas show a gradually increasing trend. The following hospitals exhibited significant patient bypass behavior: the 301 Hospital, Beijing Children’s Hospital, the Second Affiliated Hospital of Soochow University and the Suzhou Hospital of Traditional Chinese Medicine. The hospitals’ reputation, transport accessibility and spatial distribution were found to be the main factors affecting patient bypass behavior. Although the hospital bypass phenomena generally appeared to be more pronounced in Beijing, the bypass trip distances between hospitals were found to be more significant in Suzhou.

  4. Analysis and Application of Intelligent Transportation Systems to Taxi System in Cameroon

    Institute of Scientific and Technical Information of China (English)

    Nzegge Chantale Ebude; Wang Mingyan

    2007-01-01

    Most traffic control systems available in major cities in Cameroon are still out dated,make use of theories and models which are very slow to implement,waste resources and their efficiency is very low.Thus the number of road accidents encountered on our major highways and inter urban traffic networks has been increasing despite the various efforts made by government and certain NGO to synthesize road users on certain aspects of traffic control and safety road use.Taxis are not left out in the whole show and most of the blame always falls on them.The need to use available Information and Communication Technology ICT to improve on the control of traffic in inter urban cities and major highways is imperative.ITS optimizes the use of resources,reduce pollution,contribute to environmental protection and increases the national economy.This paper starts by giving a brief situation of the transportation system in Cameroon,its drawbacks and proposes an optimized ITS based system.

  5. Autonomous taxis could greatly reduce greenhouse-gas emissions of US light-duty vehicles

    Science.gov (United States)

    Greenblatt, Jeffery B.; Saxena, Samveg

    2015-09-01

    Autonomous vehicles (AVs) are conveyances to move passengers or freight without human intervention. AVs are potentially disruptive both technologically and socially, with claimed benefits including increased safety, road utilization, driver productivity and energy savings. Here we estimate 2014 and 2030 greenhouse-gas (GHG) emissions and costs of autonomous taxis (ATs), a class of fully autonomous shared AVs likely to gain rapid early market share, through three synergistic effects: (1) future decreases in electricity GHG emissions intensity, (2) smaller vehicle sizes resulting from trip-specific AT deployment, and (3) higher annual vehicle-miles travelled (VMT), increasing high-efficiency (especially battery-electric) vehicle cost-effectiveness. Combined, these factors could result in decreased US per-mile GHG emissions in 2030 per AT deployed of 87-94% below current conventionally driven vehicles (CDVs), and 63-82% below projected 2030 hybrid vehicles, without including other energy-saving benefits of AVs. With these substantial GHG savings, ATs could enable GHG reductions even if total VMT, average speed and vehicle size increased substantially. Oil consumption would also be reduced by nearly 100%.

  6. Effect of steady and unsteady flow on chemoattractant plume formation and sperm taxis

    Science.gov (United States)

    Bell, Allison F.; Crimaldi, John P.

    2015-08-01

    The formation of chemoattractant plumes around benthic invertebrate eggs in steady and unsteady shear flows is investigated for a range of shear rates, and the ability of sperm to navigate within these plumes is assessed using several chemotactic strategies. Although many of the details of sperm taxis remain uncertain, we investigate the role of basic processes using a toy model in two dimensions. Search strategies in 2D are intrinsically less complex than 3D, but many of the basic components are similar, and the simplified geometry permits an understanding and identification of the key factors of navigation tactics. Numerical simulations are used to model the advection and diffusion of the chemoattractant within the different flows, using three different sperm swimming behaviors. A Monte-Carlo approach is then used to determine the probability of a sperm reaching an egg for a range of flow conditions, initial conditions, and swimming behaviors. The spatial structure of chemoattractant plumes at the scale of the gametes is also investigated. Success rates for locating an egg decrease monotonically with increasing shear rates, and a definitive hierarchical ordering of the tested swimming strategies is identified. A conceptual framework to study and identify important aspects of this fundamental process to support further studies is provided.

  7. The Detection of Transport Land-Use Data Using Crowdsourcing Taxi Trajectory

    Science.gov (United States)

    Ai, T.; Yang, W.

    2016-06-01

    This study tries to explore the question of transport land-use change detection by large volume of vehicle trajectory data, presenting a method based on Deluanay triangulation. The whole method includes three steps. The first one is to pre-process the vehicle trajectory data including the point anomaly removing and the conversion of trajectory point to track line. Secondly, construct Deluanay triangulation within the vehicle trajectory line to detect neighborhood relation. Considering the case that some of the trajectory segments are too long, we use a interpolation measure to add more points for the improved triangulation. Thirdly, extract the transport road by cutting short triangle edge and organizing the polygon topology. We have conducted the experiment of transport land-use change discovery using the data of taxi track in Beijing City. We extract not only the transport land-use area but also the semantic information such as the transformation speed, the traffic jam distribution, the main vehicle movement direction and others. Compared with the existed transport network data, such as OpenStreet Map, our method is proved to be quick and accurate.

  8. Pulmonary function tests in three wheeler diesel taxi drivers in Bikaner city

    International Nuclear Information System (INIS)

    Pulmonary Function Tests (PFTs) including spirometry give an important clue in terms of respiratory chronic airway disorders and can predict early damage to pulmonary system. The present study was carried out in 100 diesel taxi drivers (Study group) of Bikaner city and compared it with 100 healthy medicos (control group) in the age group of 20 to 50 years by computerised spirometer. The pulmonary function tests included FVC, FEV1, FEV1/FVC, FEF 25-75% and PEFR. All subjects were divided into non-smokers and smokers so that influence of smoking on lungs can be studied. Results: The restrictive impairment was found in 87% of study group, of which 50% were smokers and 37% were non-smokers, mixed pattern (both restrictive and early obstructive impairment) was found in only 13% of study group, of which 7% were smokers and 5% non-smokers. Conclusion: When all the above five parameters were taken together, they were indicative of mixed pattern (both restrictive and obstructive) lung impairment. (author)

  9. Tractor-Maintenance: Operation & Daily Care [and] Servicing Air Cleaner & Lubrication. Student Materials. V. A. III. [V-C-1 through V-C-4].

    Science.gov (United States)

    Texas A and M Univ., College Station. Vocational Instructional Services.

    Designed for use by students in vocational agricultural classes, this manual deals with tractor maintenance. Operation and daily care are the topics of the first section. Safety is also covered. In the final part of the manual, servicing the air cleaner and lubricating the engine are discussed. Both sections conclude with a quiz. (PLB)

  10. The Correlation between Sex, Age, Educational Background, and Hours of Service on Vigilance Level of ATC Officers in Air Nav Surabaya, Indonesia

    Science.gov (United States)

    Saleh, Lalu Muhammad; Suwandi, Tjipto; Hamidah

    2016-01-01

    The vigilance of an Air Traffic Control (ATC) officer determines aviation safety. The number of aviation accidents tends to be increasing in recent years. Aviation accidents may be caused by human errors (i.e. errors made by pilot or ATC officer) or unsafe work condition. Sex, age, educational background, and hours of service might affect…

  11. The Effect and Potential Study of Eco-driving on Taxi Fuel Consumption%出租车驾驶员驾驶行为对油耗的影响及潜力分析

    Institute of Scientific and Technical Information of China (English)

    赵晓华; 陈晨; 伍毅平; 荣建; 刘莹; 程颖; 胡莹

    2015-01-01

    Taxi actual operating data on Beijing urban basic freeway section is taken and then divided according to driving cycle and level of service(LOS), based on which the effect and potential to fuel consumption of eco-driving under different conditions is analyzed. Analysis of variance (ANOVA) is used to analyze the effect to fuel consumption of driver behavior under different conditions. The result shows that taxis accelerating and decelerating are frequently on urban basic freeway section. With the improvement of LOS, taxi fuel consumption is increased under the condition of acceleration and steady running, but it is reduced under deceleration. The main vehicle fuel consumption comes from the accelerating process at low LOS. Considering the conditions' contribution to total fuel consumption, eco-driving fuel-saving potential calculation method is proposed to analyze benefits of eco-driving. It turns out that accelerating process has highest fuel-saving potential and the whole fuel consumption reduction on urban basic freeway section could be 11.18%when adopting eco-driving.%本文基于北京市出租车实际运行数据,研究城市快速路基本路段不同工况、服务水平下驾驶行为对出租车油耗的影响,分析各条件下生态驾驶节能潜力.应用方差分析方法,分析不同条件下驾驶行为对出租车油耗的影响.研究结果表明,出租车在城市快速路基本路段加、减速频繁;随服务水平提高,加速、匀速工况下车辆油耗升高,减速工况下车辆油耗降低;低服务水平下加速工况油耗是车辆油耗的主要来源.考虑各条件下油耗对出租车总油耗的贡献,提出生态驾驶行为节能潜力计算方法.分析结果表明,加速工况下生态驾驶节能潜力最高,出租车在快速路基本路段取生态驾驶行为的综合节能潜力可达11.18%.

  12. Comparison of Ozone and Water Vapor Retrieved From Airbus In-Service Aircraft (MOZAIC) and AIRS data over Delhi

    Science.gov (United States)

    Singh, R. P.; Bhattacharjee, P. S.

    2010-12-01

    Carbon monoxide (CO) is a key trace gas in tropospheric photochemistry and controls the oxidizing capacity in the troposphere. On oxidation with OH radicals, in turn, could perturb the growth rates of many greenhouse gases such as CH4 and O3. We have used Carbon Monoxide (CO in ppbv), Water (H2O) and ozone (O3) mixing ratio data from Measurement of Ozone and Water Vapor by Airbus In-Service Aircraft (MOZAIC) over Delhi centrally located in the northern part of India. We have analyzed more than 100 aircraft profile data measured by flights to and from Delhi during period 2003 - 2006. CO from Atmospheric Infrared Sounder (AIRS) and Measurement of Pollution in the atmosphere (MOPITT), is compared with MOZAIC data. Satellite derived data are found to be be in good agreement with the aircraft data, although the satellite overpass time are not concurrent with aircraft descending/ascending time. CO, H2O and O3 all show prominent seasonal variations and a climatology is produced from the observation data. The seasonal effect on the trace gas concentrations and effect of dust show characteristic behavior.

  13. Factors associated with HIV testing among male motorbike taxi drivers in urban Vietnam.

    Science.gov (United States)

    Huy, Nguyen Van; Khuyen, Le Thi; Ha, Pham Nguyen

    2015-01-01

    Using the Attitude-Skills-Knowledge (ASK) model, this study examined the prevalence of, and factors associated with, human immunodeficiency virus (HIV) testing among male motorbike taxi drivers (MMTDs). In a cross-sectional design, using quantitative approaches, 291 MMTDs were recruited from 135 sites across 13 districts in Hanoi, Vietnam, for a face-to-face interview. Applying the ASK model modified as a central theory, logistic regression was used to identify determinants of HIV testing. Although many MMTDs engaged in multiple risk behaviours for HIV, only 20.6% had been tested for HIV during the past 12 months. The tested model included one factor of the ASK model, HIV prevention knowledge (adjusted odds ratio [AOR] = 4.76; 95% confidence interval [CI] = 2.12-10.7) and five additional factors: being married (AOR = 3.13; 95% CI = 1.25-4.78), preferring sex with men or with both men and women (AOR = 8.72; 95% CI = 1.48-51.5), having lower number of lifetime sex partners (AOR = 0.66; 95% CI = 0.49-0.88), higher number of past year sex partners (AOR = 2.97: 95% CI = 1.21-7.31) and discussing condom use when having sex with partners (AOR = 0.08; 95% CI = 0.01-7.31). This modified ASK model provided better fit than the ASK model, as it explained more variance in HIV testing (47 vs. 29.8%). Recognising factors associated with HIV testing among MMTDs enables us to create suitable public health intervention strategies.

  14. Analysis and improved design of the taxi internal facilities%出租车内部设施分析与改善设计

    Institute of Scientific and Technical Information of China (English)

    江明明; 王霞; 童一飞

    2015-01-01

    It introduces the current design of the taxi internal facilities.In order to improve the design of taxi in-ternal facilities, it presents the special requirements of such special groups as baby and the disabled.Then it de-termines the dimension in ergonomics, establishes the model of the improved taxi internal facilities based on SolidWorks.%分析了目前出租车内部设施的设计,针对婴儿和残疾人这两类特殊人群的特殊需求,运用人机工程学,确定车身和婴儿座椅的设计尺寸,对出租车的内部设施做出改善和重新设计。利用SolidWorks建立模型,得到出租车内部设施改善后的模型。

  15. SUMMARY OF ELECTRIC SERVICE COSTS FOR TOTALLY AIR CONDITIONED SCHOOLS PREPARED FOR HOUSTON INDEPENDENT SCHOOL DISTRICT, MAY 31, 1967.

    Science.gov (United States)

    WHITESIDES, M.M.

    THIS REPORT IS A COMPILATION OF DATA ON ELECTRIC AIR CONDITIONING COSTS, OPERATIONS AND MAINTENANCE. AIR CONDITIONING UNITS ARE COMPARED IN TERMS OF ELECTRIC VERSUS NON-ELECTRIC, AUTOMATIC VERSUS OPERATED, AIR COOLED VERSUS WATER COOLED, RECIPROCATING VERSUS CENTRIFUGAL COMPRESSORS, SPACE AND NOISE, REHEAT, MAINTENANCE AND ORIGINAL COST. DATA ARE…

  16. Air Pollution

    Science.gov (United States)

    ... to a close in June 2013 when the company, Conscious Clothing, was awarded the My Air grand ... Page Options: Request Translation Services Facebook Twitter LinkedIn Google+ Reddit Email Evernote More Increase Font Size Decrease ...

  17. Introduction of a New Transport Service on the Finnish Market

    OpenAIRE

    Qi, Dejie

    2011-01-01

    The aim of the thesis was to identify whether there would be a market for new personal transport service in the Capital region of Finland (Helsinki, Espoo, Vantaa and Kauniainen). The service is a driver-rental service that resembles taxi service with the difference being that the customer is driven to his destination in his own car. Research questions were: is the service feasible in Finland and is there a market for it in the Capital region of Finland? To answer these questions the author u...

  18. Needs and workflow assessment prior to implementation of a digital pathology infrastructure for the US Air Force Medical Service

    Directory of Open Access Journals (Sweden)

    Jonhan Ho

    2013-01-01

    Full Text Available Background: Advances in digital pathology are accelerating integration of this technology into anatomic pathology (AP. To optimize implementation and adoption of digital pathology systems within a large healthcare organization, initial assessment of both end user (pathologist needs and organizational infrastructure are required. Contextual inquiry is a qualitative, user-centered tool for collecting, interpreting, and aggregating such detailed data about work practices that can be employed to help identify specific needs and requirements. Aim: Using contextual inquiry, the objective of this study was to identify the unique work practices and requirements in AP for the United States (US Air Force Medical Service (AFMS that had to be targeted in order to support their transition to digital pathology. Subjects and Methods: A pathology-centered observer team conducted 1.5 h interviews with a total of 24 AFMS pathologists and histology lab personnel at three large regional centers and one smaller peripheral AFMS pathology center using contextual inquiry guidelines. Findings were documented as notes and arranged into a hierarchal organization of common themes based on user-provided data, defined as an affinity diagram. These data were also organized into consolidated graphic models that characterized AFMS pathology work practices, structure, and requirements. Results: Over 1,200 recorded notes were grouped into an affinity diagram composed of 27 third-level, 10 second-level, and five main-level (workflow and workload distribution, quality, communication, military culture, and technology categories. When combined with workflow and cultural models, the findings revealed that AFMS pathologists had needs that were unique to their military setting, when compared to civilian pathologists. These unique needs included having to serve a globally distributed patient population, transient staff, but a uniform information technology (IT structure. Conclusions: The

  19. Characterization of CetA and CetB, a bipartite energy taxis system in Campylobacter jejuni.

    Science.gov (United States)

    Elliott, Kathryn T; Dirita, Victor J

    2008-09-01

    The energy taxis receptor Aer, in Escherichia coli, senses changes in the redox state of the electron transport system via an flavin adenine dinucleotide cofactor bound to a PAS domain. The PAS domain (a sensory domain named after three proteins Per, ARNT and Sim, where it was first identified) is thought to interact directly with the Aer HAMP domain to transmit this signal to the highly conserved domain (HCD) found in chemotaxis receptors. An apparent energy taxis system in Campylobacter jejuni is composed of two proteins, CetA and CetB, that have the domains of Aer divided between them. CetB has a PAS domain, while CetA has a predicted transmembrane region, HAMP domain and the HCD. In this study, we examined the expression of cetA and cetB and the biochemical properties of the proteins they encode. cetA and cetB are co-transcribed independently of the flagellar regulon. CetA has two transmembrane helices in a helical hairpin while CetB is a peripheral membrane protein tightly associated with the membrane. CetB levels are CetA dependent. Additionally, we demonstrated that both CetA and CetB participate in complexes, including a likely CetB dimer and a complex that may include both CetA and CetB. This study provides a foundation for further characterization of signal transduction mechanisms within CetA/CetB. PMID:18631239

  20. Energy Taxis toward Host-Derived Nitrate Supports a Salmonella Pathogenicity Island 1-Independent Mechanism of Invasion

    Science.gov (United States)

    Rivera-Chávez, Fabian; Lopez, Christopher A.; Zhang, Lillian F.; García-Pastor, Lucía; Chávez-Arroyo, Alfredo; Lokken, Kristen L.; Tsolis, Renée M.

    2016-01-01

    ABSTRACT Salmonella enterica serovar Typhimurium can cross the epithelial barrier using either the invasion-associated type III secretion system (T3SS-1) or a T3SS-1-independent mechanism that remains poorly characterized. Here we show that flagellum-mediated motility supported a T3SS-1-independent pathway for entering ileal Peyer’s patches in the mouse model. Flagellum-dependent invasion of Peyer’s patches required energy taxis toward nitrate, which was mediated by the methyl-accepting chemotaxis protein (MCP) Tsr. Generation of nitrate in the intestinal lumen required inducible nitric oxide synthase (iNOS), which was synthesized constitutively in the mucosa of the terminal ileum but not in the jejunum, duodenum, or cecum. Tsr-mediated invasion of ileal Peyer’s patches was abrogated in mice deficient for Nos2, the gene encoding iNOS. We conclude that Tsr-mediated energy taxis enables S. Typhimurium to migrate toward the intestinal epithelium by sensing host-derived nitrate, thereby contributing to invasion of Peyer’s patches. PMID:27435462

  1. The Effect of Philadelphia and Pennsylvania Clean Indoor Air Act on Food Services and Drinking Places Sales and Numbers, 1998-2011

    OpenAIRE

    Ma, Zhen-qiang; Fisher, Monica A

    2013-01-01

    Introduction Philadelphia enacted its Clean Indoor Air Act (CIAA) nearly 2 years before the statewide CIAA. In this study, we assessed the economic impact of CIAAs on 4 types of food services and drinking places and addressed the predominant limitation of previous pre–post ban studies, namely the lack of control for confounders and changes in secular trends over time. Methods We analyzed data from Pennsylvania Department of Revenue Quarterly 1998–2011 taxable county-level revenue sales and nu...

  2. Variability of Compet itive Factors in Air Transportation and Improving Customer Satisfaction with Service Innovation: A New "Mile + Time Score" Application

    OpenAIRE

    Süleyman Can Yıldırır

    2015-01-01

    As in all the world, airlines transportation in our country is increasing every day. Rapid transport, reasonable price and high quality service is the reaso n for this increase. Both local and foreign airline companies have accelerated their activities as result of this rapid growth in air transportation sector. Over the time, these enterprises reached a level to go head to head with each other about the quality, price, transport network and ...

  3. 出租车计费系统设计%The design of taxi billing system

    Institute of Scientific and Technical Information of China (English)

    许洋洋; 王丽娟; 贾瑞匣

    2013-01-01

    A " taxi billing system" is developed based on SCM for a resistance furnace system.This system includes six functional modules that are keying circuit control module,clock circuit controlmodule,reset circuit control module and calculation of mileage control module,design of valuation unit module and display circuit control module.Assembly language is carried on the software design module,the instruction carries out the speed quick,save memory.The text inside describes the system hardware work principle in brief first,and attach with the system hardware design frame diagram,combine development history that introduced the single a machine microprocessor,discuss this graduate design a function for applied each hardware connecting a people the technique connects with each one a mold piece and work processes.This design can achieve the basic valuation function,at the same time,according to the weather condition to adjust the unit price.With the clock function provides the convenienc .%本文以出租车计费系统作为研究对象,开发了基于单片机的控制系统。本控制系统按功能分主要包括以下几个部分:按键控制电路模块、时钟电路控制模块、复位电路控制模块、里程及计价控制模块、显示电路控制模块组成。本系统的编程语言是以单片机的基本语言汇编语言来进行的,指令的执行速度快,节省存储空间。简单描述系统硬件工作原理,介绍了单片机微处理器的发展史,附以系统硬件设计框图,论述了所应用的各硬件接口技术和各个接口模块的功能及工作过程。本次设计能够实现基本计价功能,同时能够根据天气状况来调节单价。附有时钟功能提供方便。

  4. How competitive gas air-conditioning is being offered to domestic users by means of attractive energy selling services?; Une climatisation au gaz concurrentielle pour le marche residentiel via des services de vente d'energie attractifs

    Energy Technology Data Exchange (ETDEWEB)

    Jane, R.; Raventos, M. [Gas Natural, SDG, S.A. (Spain); Naval, J.; Martinez, J.A. [Gas Serviconfort S.A. (Spain)

    2000-07-01

    With the object of responding to the progressive increase in the demand for air-conditioning in the domestic sector with the presentation of gas as a competitive alternative to the electric systems currently available, and in order to avoid not only the loss of this specific market but also of the heating and hot water markets in the new-build residential sector, a new individualized energy selling service has been developed. This new option incorporates the advantages of the individualized and centralized systems of air-conditioning thanks to the utilisation of the medium-size gas air-conditioning systems currently available and to the geNie system as an instrument for totally individualizing the service and offering truly innovative features that will be attractive to the consumer. This new line of activity, implemented by the Serviconfort, a subsidiary company off the Gas Natural Group, has proven its viability both in technological and in service-definition terms in a series of demonstrations with more than 800 clients, which have served to indicate the considerable interest of the new-build residential sector in Spain and the expectations for the potential market over the next few years. (authors)

  5. 缓解苏州主城区“打的”难问题的出租汽车运价结构调整方案%Taxi Price Structure Reformation Plan Based on Having Difficulty in Taking Taxi at Suzhou City

    Institute of Scientific and Technical Information of China (English)

    许秀峰; 王琳

    2012-01-01

    Because of the difficulty in changing city functional layout of Suzhou City and the seriousness of traffic congestion, it has little effect to ease the difficulty in taking taxi by increasing taxi number and administrative measures in recent years. After analysis of the formation mechanism of the difficulty in taking taxi from the view point of the taxi price structure, a taxi price structure reformation plan was proposed and its effect was analyzed after putting the plan into practice.%近年来,由于苏州主城区城市功能布局短期难以改变、道路拥堵日趋严重等因素,通过增加出租汽车运力、行政约束等手段缓解主城区“打的”难问题收效甚微。本文从出租汽车运价结构角度分析主城区“打的”难问题的形成机理,提出出租汽车运价结构调整方案,最后通过实施效果分析其有效性。

  6. Thermal Gradient Behavior of TBCs Subjected to a Laser Gradient Test Rig: Simulating an Air-to-Air Combat Flight

    Science.gov (United States)

    Lima, Rogerio S.; Marple, Basil R.; Marcoux, P.

    2016-01-01

    A computer-controlled laser test rig (using a CO2 laser) offers an interesting alternative to traditional flame-based thermal gradient rigs in evaluating thermal barrier coatings (TBCs). The temperature gradient between the top and back surfaces of a TBC system can be controlled based on the laser power and a forced air back-face cooling system, enabling the temperature history of complete aircraft missions to be simulated. An air plasma spray-deposited TBC was tested and, based on experimental data available in the literature, the temperature gradients across the TBC system (ZrO2-Y2O3 YSZ top coat/CoNiCrAlY bond coat/Inconel 625 substrate) and their respective frequencies during air-to-air combat missions of fighter jets were replicated. The missions included (i) idle/taxi on the runway, (ii) take-off and climbing, (iii) cruise trajectory to rendezvous zone, (iv) air-to-air combat maneuvering, (v) cruise trajectory back to runway, and (vi) idle/taxi after landing. The results show that the TBC thermal gradient experimental data in turbine engines can be replicated in the laser gradient rig, leading to an important tool to better engineer TBCs.

  7. 出租汽车计价器加密传感器设计%Encrypted Sensor Design of Taxi Meter

    Institute of Scientific and Technical Information of China (English)

    王跃红

    2014-01-01

    This paper analyzes the encryption principle and several invasion methods of taxi meter encrypted sensor.%文章对出租汽车计价器加密传感器的加密原理、几种入侵方式进行分析。

  8. Fusarium graminearum produces different xylanases causing host cell death that is prevented by the xylanase inhibitors XIP-I and TAXI-III in wheat.

    Science.gov (United States)

    Tundo, Silvio; Moscetti, Ilaria; Faoro, Franco; Lafond, Mickaël; Giardina, Thierry; Favaron, Francesco; Sella, Luca; D'Ovidio, Renato

    2015-11-01

    To shed light on the role of Xylanase Inhibitors (XIs) during Fusarium graminearum infection, we first demonstrated that three out of four F. graminearum xylanases, in addition to their xylan degrading activity, have also the capacity to cause host cell death both in cell suspensions and wheat spike tissue. Subsequently, we demonstrated that TAXI-III and XIP-I prevented both the enzyme and host cell death activities of F. graminearum xylanases. In particular, we showed that the enzymatic inhibition by TAXI-III and XIP-I was competitive and only FGSG_11487 escaped inhibition. The finding that TAXI-III and XIP-I prevented cell death activity of heat inactivated xylanases and that XIP-I precluded the cell death activity of FGSG_11487 - even if XIP-I does not inhibit its enzyme activity - suggests that the catalytic and the cell death activities are separated features of these xylanases. Finally, the efficacy of TAXI-III or XIP-I to prevent host cell death caused by xylanases was confirmed in transgenic plants expressing separately these inhibitors, suggesting that the XIs could limit F. graminearum infection via direct inhibition of xylanase activity and/or by preventing host cell death.

  9. LOCATING TAXI SIGN BASED ON OPTIMISED DAUGMAN ALGORITHM%基于优化Daugman算法的出租车标志定位

    Institute of Scientific and Technical Information of China (English)

    段虎成

    2011-01-01

    When locating round target,traditional Hough transform algorithm is liable to interference and has poor effect,results in big location deviations. In light of this problem, we propose an optimised Daugman algorithm-based location method to realise the location of the taxi signs. This algorithm introduces an optimised Daugman operator and uses the experienced threshold value to improve the accuracy of taxi sign estimation and location. Experiments show that this algorithm can judge and locate the taxi sign accurately and have good robusmess. The experiment also shows that the optimised Daugman algorithm can locate the taxi sign effectively.%针对传统的Hough变换算法定位圆状目标时易受到干扰,效果不佳,导致定位出现较大偏差的问题,提出了一种基于优化的Daugman算法的定位方法来实现对于出租车标志定位.该算法引进一种优化的Daugnum算子并使用阈值经验以提高出租车标志判断与定位的精确度.实验表明,使用该算法判断与定位出租车标志准确且抗干扰性强,从而能有效地定位出租车标志.

  10. A Functional Thinking Approach to the Design of Future Transportation Systems: Taxis as a Proxy for Personal Rapid Transit in South Korea

    DEFF Research Database (Denmark)

    Thompson, Mary Kathryn; Bae, Hyun Hye

    2014-01-01

    taxis can be used as an alternative embodiment of personal rapid transit and can serve as a test bed to support PRT-related design, research, and development. The paper then explores the transportation patterns and characteristics of cities in South Korea and the United States in order to determine...

  11. The US Air Force medical service system%美国空军的医疗保障体系

    Institute of Scientific and Technical Information of China (English)

    余志斌

    2016-01-01

    借鉴与学习美国空军医疗保障体系与先进理念,以及稳定航空军医队伍的有效手段.主要引用美国空军两个网络资料,文献4篇,军标1个.这些资料表明,美国空军高层已形成共识——良好的医疗服务是飞行安全与战斗力的重要保障.因此,每年预算庞大的经费,以维持75个医疗中心、医院、诊所或医疗站的专一而高效地运转.而军事人员通用医疗保险制度(TRICARE)使三军人员就近就诊,大幅节省费用.全球搜救、空运医疗服务系统和分级健康维护与治疗,构成完备的医疗保障体系.航空军医则是保障空军全体官兵健康的重要前哨,通过分级培训与较高待遇,使航空军医在专业与生活水平两方面均能不断提升,有效地稳定了这支队伍.美国TRICARE制度可以借鉴,稳定航空军医队伍的手段值得学习.%To analyze the United State Air Force (USAF) medical service system in order to obtain core concepts and methods to maintain high level and active flight surgeon team. Data from 4 articles, 1 military standard and 2 websites were cited. The data indicated that the USAF leadership had a consensus: good medical service was an important guarantee for flight safety and fighting capacity. Therefore, the 75 medical centers, hospitals, clinics or stations were maintained by a huge annual budget of funds. TRICARE medical insurance program provided the military personnel with the nearest medication to save substantial cost. Global search and rescue, aeromedical evacuation and grading healthcare constitute a comprehensive medical insurance system. The flight surgeon was as an outpost for healthcare of all the officers and airmen. The higher annual salary and grading professional training can effectively stabilize and improve the flight surgeon team. The medical insurance program serving uniformed military members should be followed as an example. The means of maintaining flight surgeon team was worth

  12. Flight-Deck Interface for High-Precision Taxi Control Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Faced with ever-increasing projections of air traffic, airport expansion plans, changes in operational requirements and introduction of advanced technologies are...

  13. 关于出租车司机英语的课程设计--为北京2008奥运会%A Course Design of Taxi Drivers' English--for the 2008 Beijing Olympic Games

    Institute of Scientific and Technical Information of China (English)

    汪露秋

    2006-01-01

    This paper illustrates how an English for Specific Purposes (ESP) course is designed to meet the needs of a certain group of people engaging in a specific job. In accordance with the development of the taxi industry in Beijing, the paper focuses on how the ESP course enables the taxi drivers to acquire the English language for specific functions in their working environment. Besides, considering the approaching Olympic Games, the paper also explores how this course helps the taxi drivers develop the communicative competence for the Olympic Games.

  14. Comparative Life Cycle Environmental Assessment Between Electric Taxi and Gasoline Taxi in Beijing%北京电动出租车与燃油出租车生命周期环境影响比较研究

    Institute of Scientific and Technical Information of China (English)

    施晓清; 孙赵鑫; 李笑诺; 李金香; 杨建新

    2015-01-01

    Tailpipe emission of internal combustion engine vehicle ( ICEV ) is one of the main sources leading to atmospheric environmental problems such as haze. Substituting electric vehicles for conventional gasoline vehicles is an important solution for reducing urban air pollution. In 2011, as a pilot city of electric vehicle, Beijing launched a promotion plan of electric vehicle. In order to compare the environmental impacts between Midi electric vehicle ( Midi EV) and Hyundai gasoline taxi ( ICEV) , this study created an inventory with local data and well-reasoned assumptions, and contributed a life cycle assessment ( LCA) model with GaBi4. 4 software and comparative life cycle environmental assessment by Life cycle impact analysis models of CML2001( Problem oriented) and EI99 ( Damage oriented) , which included the environmental impacts of full life cycle, manufacture phase, use phase and end of life. The sensitivity analysis of lifetime mileage and power structure was also provided. The results indicated that the full life cycle environmental impact of Midi EV was smaller than Hyundai ICEV, which was mainly due to the lower fossil fuel consumption. On the contrary, Midi EV exhibited the potential of increasing the environmental impacts of ecosystem quality influence and Human health influence. By CML2001 model, the results indicated that Midi EV might decrease the impact of Abiotic Depletion Potential, Global Warming Potential, Ozone Layer Depletion Potential and so on. However, in the production phase, the impact of Abiotic Depletion Potential, Acidification Potential, Eutrophication Potential, Global Warming Potential, Photochemical Ozone Creation Potential, Ozone Layer Depletion Potential, Marine Aquatic Ecotoxicity Potential, Terrestric Ecotoxicity Potential, Human Toxicity Potential of Midi EV were increased relative to Hyundai ICEV because of emissions impacts from its power system especially the battery production. Besides, in the use phase, electricity

  15. FANTASTIC-5G: flexible air interface for scalable service delivery within wireless communication networks of the 5th generation

    DEFF Research Database (Denmark)

    Schaich, Frank; Sayrac, Berna; Elayoubi, Salaheddine;

    2016-01-01

    5th generation mobile networks will have to cope with a high degree of heterogeneity in terms of services, mobility, number of devices and so on. Thus, diverse and often contradicting key performance indicators need to be supported, but having multiple radio access technologies for multi-service ...

  16. Levy-taxis: a novel search strategy for finding odor plumes in turbulent flow-dominated environments

    International Nuclear Information System (INIS)

    Locating chemical plumes in aquatic or terrestrial environments is important for many economic, conservation, security and health related human activities. The localization process is composed mainly of two phases: finding the chemical plume and then tracking it to its source. Plume tracking has been the subject of considerable study whereas plume finding has received little attention. We address here the latter issue, where the searching agent must find the plume in a region often many times larger than the plume and devoid of the relevant chemical cues. The probability of detecting the plume not only depends on the movements of the searching agent but also on the fluid mechanical regime, shaping plume intermittency in space and time; this is a basic, general problem when exploring for ephemeral resources (e.g. moving and/or concealing targets). Here we present a bio-inspired search strategy named Levy-taxis that, under certain conditions, located odor plumes significantly faster and with a better success rate than other search strategies such as Levy walks (LW), correlated random walks (CRW) and systematic zig-zag. These results are based on computer simulations which contain, for the first time ever, digitalized real-world water flow and chemical plume instead of their theoretical model approximations. Combining elements of LW and CRW, Levy-taxis is particularly efficient for searching in flow-dominated environments: it adaptively controls the stochastic search pattern using environmental information (i.e. flow) that is available throughout the course of the search and shows correlation with the source providing the cues. This strategy finds natural application in real-world search missions, both by humans and autonomous robots, since it accommodates the stochastic nature of chemical mixing in turbulent flows. In addition, it may prove useful in the field of behavioral ecology, explaining and predicting the movement patterns of various animals searching for food

  17. Recknagel/Sprenger/Hoenmann: Pocket book for heating and air conditioning including service water heating and refrigeration engineering 92/93. Recknagel/Sprenger/Hoenmann: Taschenbuch fuer Heizung und Klimatechnik einschliesslich Warmwasser- und Kaeltetechnik 92/93

    Energy Technology Data Exchange (ETDEWEB)

    Schramek, E.R. (Dortmund Univ. (Germany)) (ed.)

    1992-01-01

    The book comprises the following chapters: 1. Fundamentals of heating and air conditioning; 2. Heating engineering; 3. Ventilation and air conditioning engineering; 4. Service water heating; 5. Industrial forced ventilation systems; 6. Refrigeration engineering; 7. Appendix (laws, books, journals, associations, societies, schools, institutes, standards, legal regulations, etc.). (orig./HW) With 2082 figs., 356 tabs.

  18. Recknagel/Sprenger/Hoenmann: Pocket book for heating and air conditioning including service water heating and refrigeration engineering 88/89. 64. ed. Recknagel/Sprenger/Hoenmann: Taschenbuch fuer Heizung und Klimatechnik einschl. Brauchwassererwaermung und Kaeltetechnik 88/89

    Energy Technology Data Exchange (ETDEWEB)

    Hoenmann, W. (ed.)

    1987-01-01

    The book comprises the following chapters: 1. Fundamentals of heating and air conditioning; 2. Heating engineering; 3. Ventilation and air conditioning engineering; 4. Service water heating; 5. Industrial forced ventilation systems; 6. Refrigeration engineering; 7. Appendix (laws, books, journals, associations, societies, schools, institutes, standards, legal regulations, etc.). (orig./HW) With 2068 figs., 347 tabs.

  19. Analysis of Air Cargo Transfer Service Chain at Pudong International Airport%浦东国际机场货运中转服务链分析

    Institute of Scientific and Technical Information of China (English)

    刘锐; 崔诚靓; 陈川

    2015-01-01

    Air cargo transfer involves several participants in its operation process, including ship pers, freight forwarders, airport cargo terminal, airlines, customs and other regulatory agencies. All of the related participants constitute the entire service chain of air cargo transfer, making the air transport continuous and convenient. Based on field research into the related enterprises, this study summarizes the developing situation about the air cargo transfer at Pudong International Airport as well as the related appeals proposed by the relevant partici pants, points out the problems at Pudong International Airport and presents some suggestions from the perspec tive of service chain.%现代航空货物中转运输在其运营过程中涉及到许多参与方,包括货主、货代、机场货站、航空公司以及海关等监管机构,所有这一系列参与方构成了整个货运中转服务链条,维系着航空运输的连续性和快捷性. 在立足对浦东机场各个货运相关参与方的实地调研的基础上,通过收集整理国外枢纽机场和相关企业的资料,分析总结浦东机场各个参与方的发展现状,梳理了参与方对中转联程运输的相关诉求,指出了浦东机场货运中转服务链中所存在的相关问题,最后从服务链的角度提出改善浦东机场货运中转的建议.

  20. Flight-Deck Interface for High-Precision Taxi Control Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Faced with ever-increasing projections of air traffic, NASA and the Federal Aviation Administration (FAA) have been developing advanced technologies to increase...

  1. 大规模出租车起止点数据可视分析%Visual Analysis of Large Taxi Origin-Destination Data

    Institute of Scientific and Technical Information of China (English)

    姜晓睿; 郑春益; 蒋莉; 梁荣华

    2015-01-01

    在现代化城市中,出租车起止点数据是一类非常有用的交通大数据,其中蕴含着丰富的时空信息。为了挖掘潜在的出租车起止点时空模式,设计了一个出租车起止点数据可视分析系统。首先利用起止点分布的全局概览图从空间上确定需要进一步挖掘的区域;然后利用系统提供的套索或者矩形选择工具选择待分析区域,由所设计的环形像素图对该区域的起止点时空模式进行可视化编码;最后通过多可视化组件协同交互,从不同维度分析出租车起止点数据的潜在时空模式。将该系统用于杭州市出租车 GPS 真实数据,取得了良好的效果,既有助于交通管理部门按需调配车辆,也能帮助出租车司机获得更高收益。%In modern cities, taxis origin-destination data is a kind of very useful big traffic data, which contains rich spatio-temporal information. This paper designs a visual analysis system for mining spatio-temporal patterns of big taxis origin-destination data. The system helps users determine the regions of interest for further investiga-tion by the global overview of origin-destination distributions; uses the circular pixel graph to visually encode the spatio-temporal patterns of the origin-destination data of the analyzed regions chosen by lasso or rectangle region selection tools; and provides multi-dimensional analysis of the latent spatio-temporal patterns of taxis ori-gin-destination data through interactions between multiple coordinated views of visualizations. The designed sys-tem obtains some interesting findings and receives good user feedbacks when applied to real taxis GPS data in Hangzhou. The system is not only useful for vehicle administration departments to dispatch taxi cabs according to temporal demands but also helpful for taxi drivers to earn more money.

  2. 面向冲突避免的航空器场面滑行引导方法%Conflict Avoidance Oriented Airport Surface Aircraft Taxiing Guidance Method

    Institute of Scientific and Technical Information of China (English)

    汤新民; 安宏锋; 王翀

    2011-01-01

    为避免大型高密度机场航空器之间可能发生的冲突,提出了一种基于混杂系统结构的滑行引导方案.建立了航空器滑行连续动力学模型和航空器在滑行道直线段、交叉口运行的离散事件动态系统模型,通过场面运行观测器建立了连续状态到离散状态的映射.采用禁止状态线性不等式约束和禁止状态逻辑互斥约束,描述场面运行模型应遵循的控制规范,并给出满足控制规范的离散控制器设计方法.最后建立了运行模型中可控变迁的使能状态到场面冲突控制策略的映射.通过助航灯光沙盘控制系统的验证表明,该滑行引导方法能及时对可能冲突的航空器采取恰当的控制策略,并实时生成航空器滑行操纵指令,能有效避免航空器滑行冲突.%To avoid confliction troubles between aircrafts at high density airports, an aircraft taxiing guidance framework based on hybrid system is proposed. Firstly, an aircraft taxiing dynamic model in continuous space and discrete event dynamic system models for the taxiing operation on straightaway and intersection are built, and a surface operation observer that maps the continuous dynamic state into discrete observation is proposed. Secondly, the forbidden state avoidance-based regulations described by linear inequality constraints and logical mutex constraints are introduced to express surface traffic control rules, and the discrete controller design method are proposed. Finally, the mapping from the enabling state of controllable transition in the straightaway and intersection operation models to control strategies is built. The validation by control system of an airfield lighting sand table shows that the taxiing guidance method can issue feasible control strategies in time and generate taxi manoeuvring instructions for aircrafts to avoid potential taxiing conflicts effectively.

  3. Economic impact of air pollution on timber markets: Studies from North America and Europe. Forest Service general technical report

    International Nuclear Information System (INIS)

    The impact of air pollution on forest health has in recent years become an issue of major public concern. This is true despite the fact that irrefutable cause-and-effect relationships have in most instances been quite difficult to establish. The purpose of the report is to assist government officials and other concerned parties by contributing to a better understanding of the economics of forest damage from air pollution. The papers presented here were written by seven economists who have studied the forestry air pollution situation and its relationship to timber markets. The first paper explains the economic linkages among fossil fuel consumption, air pollution externalities, and losses in timber markets. The five papers that follow are concerned with the actual estimation of damages across selected large geographic areas. One study deals with the Southeastern United States; three are national studies from Finland, the U.S., and Canada; and one is concerned with the entire European continent. Yet, while each of the studies is concerned with estimating damage within a large geographic area, the methods of analysis are diverse

  4. 38 CFR 3.7 - Individuals and groups considered to have performed active military, naval, or air service.

    Science.gov (United States)

    2010-07-01

    ... Medical Corps. (m) National Guard. Members of the National Guard of the United States and Air National... Technicians Who Served in the Combat Areas of the Pacific during World War II (December 7, 1941 to August 15... Scientific Research and Development, Office of Emergency Management, which served overseas with the U.S....

  5. 北京电动出租车与燃油出租车生命周期环境影响比较研究%Comparative Life Cycle Environmental Assessment Between Electric Taxi and Gasoline Taxi in Beijing

    Institute of Scientific and Technical Information of China (English)

    施晓清; 孙赵鑫; 李笑诺; 李金香; 杨建新

    2015-01-01

    势的主要原因.对关键因素敏感性分析发现,随着报废里程以及清洁能源比例的增加,迷迪电动汽车相对现代燃油车的单位里程碳减排量呈现增加的趋势.清洁电力能源的使用可大幅降低迷迪电动汽车致霾污染物的排放量.根据分析结果,为北京市电动车的推广提出了对策建议.%Tailpipe emission of internal combustion engine vehicle ( ICEV ) is one of the main sources leading to atmospheric environmental problems such as haze. Substituting electric vehicles for conventional gasoline vehicles is an important solution for reducing urban air pollution. In 2011, as a pilot city of electric vehicle, Beijing launched a promotion plan of electric vehicle. In order to compare the environmental impacts between Midi electric vehicle ( Midi EV) and Hyundai gasoline taxi ( ICEV) , this study created an inventory with local data and well-reasoned assumptions, and contributed a life cycle assessment ( LCA) model with GaBi4. 4 software and comparative life cycle environmental assessment by Life cycle impact analysis models of CML2001( Problem oriented) and EI99 ( Damage oriented) , which included the environmental impacts of full life cycle, manufacture phase, use phase and end of life. The sensitivity analysis of lifetime mileage and power structure was also provided. The results indicated that the full life cycle environmental impact of Midi EV was smaller than Hyundai ICEV, which was mainly due to the lower fossil fuel consumption. On the contrary, Midi EV exhibited the potential of increasing the environmental impacts of ecosystem quality influence and Human health influence. By CML2001 model, the results indicated that Midi EV might decrease the impact of Abiotic Depletion Potential, Global Warming Potential, Ozone Layer Depletion Potential and so on. However, in the production phase, the impact of Abiotic Depletion Potential, Acidification Potential, Eutrophication Potential, Global Warming

  6. Poisson process-based algorithm for searching vacant taxi%基于泊松过程的寻找空驶出租车的算法

    Institute of Scientific and Technical Information of China (English)

    樊里略

    2016-01-01

    随着城市化进程的推进,城市车辆数量呈现激增的趋势.城市交通为居民的出行提供便利的同时,也带来了比如打车难问题.为了解决这个问题,首先采用对大规模的出租车GPS轨迹数据进行预处理,并生成道路特征索引;然后利用非齐次泊松过程NPP进行预测和推荐工作.用此方法与其它相关先进方法进行对比,实验结果表明,此方法在准确率和运行效率方面更具优势.%With the development of urbanization, the number of cars was proliferating fast. Urban transportation provides convenience for city resident, meanwhile, it also brings many challenges, such as causing a difficulty for taking a taxi. To solve the problem, main work was composed of two parts: first, a method was proposed to estimate the probability and waiting time for a vacant taxi at a given time and place, second, an recommendations was provided for passengers of where to wait for a taxi. In order to complete the main work, the Large-scale Taxi GPS Traces was preprocessed and the road characteristic index was generated. Then NPP ( Nonhomogeneous Poisson Process) was used to predict and recommend. Compared with other related advanced methods, the results show that the method has more advantages in accuracy and efficiency.

  7. Monte Carlo simulation calculation method for taxi boarding area scale%出租车上客区规模的Monte Carlo仿真计算方法

    Institute of Scientific and Technical Information of China (English)

    黎冬平

    2011-01-01

    为确定出租车上客区的合理规模,分析其运行特征,同时存在乘客和出租车相互等待的情况,而不能采用停车场模型或排队论模型计算.采用Monte Carlo仿真方法,利用随机原理来拟合乘客与出租车的相互作用过程,给出了合理规模的确定流程.实例应用证明该方法具有很好的适用性;同时分析结果表明:(1)当出租车上客区泊位规模达到一定程度时,再增加并不能减少乘客等待时间;(2)高峰时段适当限制乘客的排队长度能够在较小比例的乘客损失下,极大地降低乘客的等待时间.%To determine the reasonable scale of the taxi boarding area, this paper analyzes the operating characteristics that the passengers and unoccupied taxies may waiting, which can not be calculated with parking model or queue theory model Therefore, it adopts the random data to fitting the interaction process between the passengers and taxis with Monte Carlo simulation.The numerical example validates the applicability of the mode and shows that: (1)the queue waiting time will not reduce after the berths of the taxi boarding areas reached the certain nember; (2)it can greatly reduce the average waiting time when queue length is restricted.

  8. Battery-quick-replacement Operation Mode for Electric Taxi Vehicle%纯电动出租汽车快速更换电池运营模式

    Institute of Scientific and Technical Information of China (English)

    王健; 梁桂航

    2011-01-01

    提出了纯电动出租汽车快速更换电池的运营模式:每一辆纯电动出租汽车配置2组电池,电池的所有权属于独立的电池租赁公司,每次更换电池的费用按实际用电量计算,电池租赁公司实行集中充电,分散更换.指出了快速更换电池运营模式的优点,并对该运营模式进行了经济分析.该运营模式的实施,可有效促进纯电动汽车的发展.%The battery-quick-replacement operation mode for electric taxi vehicles was proposed; Each electric taxi equipped with two groups of electric battery belongs to the independent battery leasing companies. The cost of replacing battery will be calculated according to actual consumption. The battery leasing companies will charge the replaced batteries in batches and distribute the charged batteries for new replacement. The advantage of the battery-quick-replacement operation mode was explained. The economic analysis of the battery-quick-replacement operation mode was performed. The implement of this operation mode is helpful for the development of electric taxi vehicle.

  9. A Web Service Tool (SOAR) for the Dynamic Generation of L1 Grids of Coincident AIRS, AMSU and MODIS Satellite Sounding Radiance Data for Climate Studies

    Science.gov (United States)

    Halem, M.; Yesha, Y.; Tilmes, C.; Chapman, D.; Goldberg, M.; Zhou, L.

    2007-05-01

    Three decades of Earth remote sensing from NASA, NOAA and DOD operational and research satellites carrying successive generations of improved atmospheric sounder instruments have resulted in petabytes of radiance data with varying spatial and spectral resolutions being stored at different data archives in various data formats by the respective agencies. This evolution of sounders and the diversities of these archived data sets have led to data processing obstacles limiting the science community from readily accessing and analyzing such long-term climate data records. We address this problem by the development of a web based Service Oriented Atmospheric Radiance (SOAR) system built on the SOA paradigm that makes it practical for the science community to dynamically access, manipulate and generate long term records of L1 pre-gridded sounding radiances of coincident multi-sensor data for regions specified according to user chosen criteria. SOAR employs a modification of the standard Client Server interactions that allows users to represent themselves directly to the Process Server through their own web browsers. The browser uses AJAX to request Javascript libraries and DHTML interfaces that define the possible client interactions and communicates the SOAP messages to the Process server allowing for dynamic web dialogs with the user to take place on the fly. The Process Server is also connected to an underlying high performance compute cluster and storage system which provides much of the data processing capabilities required to service the client requests. The compute cluster employs optical communications to NOAA and NASA for accessing the data and under the governance of the Process Server invokes algorithms for on-demand spatial, temporal, and spectral gridding. Scientists can choose from a variety of statistical averaging techniques for compositing satellite observed sounder radiances from the AIRS, AMSU or MODIS instruments to form spatial-temporal grids for

  10. Free Trade in Airline Services: Assessing the Proposals to Liberalize the Canada – U.S. Air Transport Bilateral

    OpenAIRE

    Gillen, David W.; Hansen, Mark; Ramos, Robson

    1990-01-01

    In this paper we examine the consequences of changes to the bilateral agreement which regulates air transport between Canada and the United States. A hubbing competition model based on an n-player non-cooperative game is used to simulate six alternative bilateral scenarios including the current positions of Canada and the U.S.. We find that changes to the bilateral does not have a significant effect on the total amount of traffic but it does effect the distribution of traffic between countrie...

  11. An Electric taxi fleet charged by second use batteries: not just economic profit

    OpenAIRE

    Canals Casals, Lluc; Amante García, Beatriz

    2013-01-01

    The road transport sector is the second biggest CO2 emissions contributor after energy generation. In urban environments, its impact is increased due to the worse combustion engine driving efficiency. It is thought that electric mobility might bring some relief to big cities’ polluted air. At the same time, car manufacturers are searching for second battery applications in order to reduce its manufacture cost and make electric cars achievable for most people. This paper seeks to a...

  12. Jobs, food, taxis and journals: complexities of implementing Stepping Stones and Creating Futures in urban informal settlements in South Africa.

    Science.gov (United States)

    Gibbs, Andrew; Jewkes, Rachel; Mbatha, Nompumelelo; Washington, Laura; Willan, Samantha

    2014-01-01

    This paper seeks to refocus debates on structural interventions away from 'assessing' their effectiveness towards understanding processes around how such interventions are implemented. Implementation Science is focused on understanding potential challenges of translating interventions from highly controlled conditions into 'real life' settings. Using the case study of Stepping Stones and Creating Futures a structural and behavioural intervention to reduce intimate partner violence and HIV risk behaviours amongst young women and men in urban informal settlements, we explore the challenges of implementing such an approach. We move beyond simply describing challenges of implementing, to understand how these challenges had an impact on the safe social space the intervention seeks to create as its underlying theory of change. We identify four major challenges of implementation: taxi fares, food provided during the intervention, young people's ongoing need to work and journals provided during the intervention. We suggest that, in different ways, these factors all impinged on the emergence of a safe social space. Understanding the challenges of implementing the intervention is critical for reflecting on scaling up interventions. Central to this is the need to work with participants to help them negotiate the challenges of participating in interventions. PMID:25174633

  13. Jobs, food, taxis and journals: complexities of implementing Stepping Stones and Creating Futures in urban informal settlements in South Africa.

    Science.gov (United States)

    Gibbs, Andrew; Jewkes, Rachel; Mbatha, Nompumelelo; Washington, Laura; Willan, Samantha

    2014-01-01

    This paper seeks to refocus debates on structural interventions away from 'assessing' their effectiveness towards understanding processes around how such interventions are implemented. Implementation Science is focused on understanding potential challenges of translating interventions from highly controlled conditions into 'real life' settings. Using the case study of Stepping Stones and Creating Futures a structural and behavioural intervention to reduce intimate partner violence and HIV risk behaviours amongst young women and men in urban informal settlements, we explore the challenges of implementing such an approach. We move beyond simply describing challenges of implementing, to understand how these challenges had an impact on the safe social space the intervention seeks to create as its underlying theory of change. We identify four major challenges of implementation: taxi fares, food provided during the intervention, young people's ongoing need to work and journals provided during the intervention. We suggest that, in different ways, these factors all impinged on the emergence of a safe social space. Understanding the challenges of implementing the intervention is critical for reflecting on scaling up interventions. Central to this is the need to work with participants to help them negotiate the challenges of participating in interventions.

  14. Effects of electro-fishing on galvano-taxis and carcass quality characteristics in sea bass (Dicentrarchus labrax

    Directory of Open Access Journals (Sweden)

    Edo D’Agaro

    2010-01-01

    Full Text Available The aim of this study was to investigate the effects of electro-fishing in sea water. We evaluated the feasibility of an electro-fishing system using numerical simulations for laboratory tanks and the open sea and performing a laboratory experiment. A non-homogeneous bi-dimensional electric-field model for marine water and fish based on discrete formulation of electro-magnetic field equations was developed using GAME (geometric approach for Maxwell equations software. Voltage gradients inside the fish and close to the body were determined. Re- sults showed that fish in the open sea and in groups had greater internal voltage differences than did fish in tanks and single fish. Sea bass (length:10 and 30 cm were exposed in laboratory tanks to pulsed direct current (PDC, 25-125 Hz and duty cycle (5-40%. We measured the electro-taxis and tetanus thresholds after electrical exposure. It is significant that these values decreased with increasing the size of fish. No differences were found after electro-fishing on overall appearance, internal and external haemorrhage, standard freshness scoring techniques and carcass quality characteristics

  15. Structure identification for compound I separated and purified from taxoids-produced endophytic fungi (Alternaria. alternata var. taxi 1011)

    Institute of Scientific and Technical Information of China (English)

    XIANG Yong; LIU Jun; LU An-guo; CUI Jing-xia

    2003-01-01

    Endophytic fungi are widely found in almost all kinds of plants. Many endophytic fungi can produce some physiological active compounds, which are same to or analog to those isolated from their hosts. Producing physiological active compounds through microbial fermentation can give a new way to resolve resource limitation and to find out alternative source. Through the methods of organic solvent extraction, thin layer chromatography (TLC) and column chromatography, compound I was isolated, purified from the liquid fermentation metabolites of the taxoids-produced endophytic fungi (Alternaria. alternata var. taxi 1011 Y. Xiang et LU An-guo) that was screened from the bark of Taxus. cuspidata Sieb.et Zucc.. Compound I was identified as one kind of taxoids type III, based on the analyzing results by using the methods of ultraviolet spectroscopy (UV), infrared spectroscopy (IR), mass spectrometry (MS) and nuclear magnetic resonance spectroscopy (NMR). This study provides a completed method for separation and purification of the endophytic fungi as well as structure identification of its fermentation metabolite

  16. Markets for environmental hazardous waste, solid waste and air products and services in New York and Pennsylvania : a guide for Canadian firms

    International Nuclear Information System (INIS)

    This report describes environmental industry opportunities in upstate New York and Pennsylvania. Market information related to the environmental products and services industry in New York State and Pennsylvania was presented for the benefit of Canadian firms looking for trade opportunities. The report focuses on solid waste, hazardous waste and air pollution. An overview of the New York Clean Water/Clean Air Bond Act of 1996 was included. Regulations are no longer the only driving force behind the environmental industry. New standards and drivers for the industry include cost-effect solutions for environmental problems. The sector slowed somewhat in the 1990s, but the report indicates that both New York and Pennsylvania offer several expanding markets for innovative Canadian companies that can respond to specialized industry niches. Each segment of the report provides a classification of the major industry sub segments, describes demand determinants and growth prospects, and summarizes relevant laws and regulations. Customers and specific leads were also described where possible. Various channels of distribution and marketing support for Canadian firms looking for trade opportunities were also described. 9 tabs., 1 fig., 15 appendices

  17. 出租汽车经营行政许可之合宪性分析%Constitutionality Analysis of Administrative License to Taxi

    Institute of Scientific and Technical Information of China (English)

    王军

    2016-01-01

    从宪法视角看,出租汽车经营行政许可制度禁止个人利用其非营运车辆从事有偿运送服务,构成了对公民财产权和劳动权的法律限制。从法律保留原则角度看,这种禁止规范的法律基础并不牢固。从明确性原则看,出租车行政许可的规范欠缺必要的明确性,在实施过程中有较大任意性。从比例相当性原则角度考量,在移动互联网等信息技术快速发展的背景下,这一禁止的妥当性虽在理论上勉强成立,但其必要性和手段目的之衡平性大有疑问。网络约车平台现已具备审查车辆安全性能和司机背景资质以及通过信息技术、合同安排和责任保险最大程度保护乘客、司机和第三人安全的能力。对非营运车辆的网络预约服务有条件、有限度的放开,已具备开展试点进行探索的条件。%To view from the constitution angle, the system of administration license to taxi prohibits individuals from doing paid delivery service by their non-operating vehicles, which forming the legal restriction of citizens’ property right and labor right. However, to view from the legal reservation doctrine angle, such prohibition norm lacks sufficient legal basis. To view from the principle of definiteness, such license lacks necessary definition causing more arbitrariness in the implementation process. To view from the principle of proportion, under the background of fast development of internet technology, although the validity of such prohibition barely has grounds in theory, there is much doubt of the balance between its necessity and the due means. Since now the internet chauffeured car platform is already able to examine the safety performance of vehicles and the background and qualification of drivers as well as protecting the safety of passengers, drivers and third parties by information technology, contract arrangement and liability insurance to the most, there is enough

  18. Caracterización de los Servicios de Atención en Violencia Familiar del área metropolitana de Buenos Aires, Argentina Analysis of Services Targeting Family Violence Against Women in Greater Metropolitan Buenos Aires, Argentina

    Directory of Open Access Journals (Sweden)

    Roxana Cecilia Ynoub

    1998-01-01

    Full Text Available Se presentan, en este trabajo, un diagnóstico y evaluación de la disponibilidad de servicios existentes en la región metropolitana de Buenos Aires para la atención en Violencia Familiar Contra la Mujer. De ellos se describen las redes existentes y las articulaciones intersectoriales. Asimismo se evaluan su desarrollo institucional, los enfoques teóricos, las modalidades de intervención y la producción de información e investigaciones. Entre los resultados, se destaca la presencia de distintas perspectivas teóricas ­ particularmente entre quienes incluyen o no la temática de género ­, a las que corresponden distintas modalidades de intervención; y las conexiones ­ más informales que formales ­ entre distintos sectores y áreas oficiales y las organizaciones no gubernamentales. Finalmente se proponen las experiencias institucionales desarrolladas en esta tema como un modelo de nuevas modalidades en el diseño de políticas públicas y de salud.This study presents a diagnosis and evaluation of the availability of services related to family violence against women in Greater Metropolitan Buenos Aires, Argentina. The paper focuses on institutional development, theoretical foci, intervention modalities, and production of information and research. Existing networks and interprofessional relationships are also described. Results point to several noteworthy theoretical perspectives. Some programs include gender as an issue, while others do not. The relationship (more informal than formal between governmental and nongovernmental organizations is also a relevant issue. The paper concludes by proposing these institutional experiences as a model for the design of new public health policies.

  19. Service-oriented integration of coordination logic in air combat simulation%面向服务的空战仿真协调逻辑集成

    Institute of Scientific and Technical Information of China (English)

    焉彬; 张曙光; 孙金标

    2009-01-01

    The importance of system agility in simulation has been widely realized and understood. How-ever , the current architecture of coordination logic in aerial warfare simulation is central "single layered" , while it has total control over coordination process, but solidifies the coordination logic in the simulation system too. A service-oriented integration for coordination logic in the air combat simulation ( ACS) was proposed. Based on the principle of separation of concerns, the solution provides mechanisms for factoring out coordina-tion logic in the ACS, and then distributes them to a series of flexible coordinator proxy which extends passive component model into self-coordinating service. A service is autonomous and is contractually defined in a de-scription. According to the specific simulation task, coordination logics are dynamic bind by interconnecting related services at run time, therefore promoting system agility in ACS.%系统的敏捷性是仿真建模的重要目标,它反映了系统适应需求变化的能力.然而当前普遍采用集中式的单层架构建模空战仿真系统中各组件模型之间大量的协调逻辑,这导致系统结构呈现刚性化特征,难于灵活适应不断变化的仿真需求.提出并实现了一种面向服务的空战仿真协调逻辑集成方案.系统中的协调逻辑被有机抽取并封装为一系列协调代理,将协调过程中被动的组件模型扩展为自协调的服务,服务是一种高度可重用的资源并且被机器可处理的描述契约文档完全定义;根据特定的仿真需求在运行时动态组合相关服务即可完成空战仿真系统中协调逻辑的绑定,从而提升了系统的敏捷性.

  20. Establishing a successful pre-hospital emergency service in a developing country: experience from Rescue 1122 service in Pakistan.

    Science.gov (United States)

    Waseem, Hunniya; Naseer, Rizwan; Razzak, Junaid Abdul

    2011-06-01

    As in many other developing countries, emergency medical services, especially pre-hospital emergency care, has long been neglected in Pakistan. Consequently, patients are brought to the emergency departments by relatives or bystanders in private cars, taxis or any other readily available mode of transportation. Ambulances, where they exist, have barely a stretcher and arrangements for oxygen supply. Modern emergency services are considered too costly for many countries. A model of pre-hospital emergency services, called Rescue 1122 and established in Punjab province of Pakistan, is presented. The system is supported by government funding and provides a quality service. The article describes the process of establishment of the service, the organisational structure, the scope of services and the role it is currently playing in the healthcare of the region it serves.

  1. Development of a management protocol for the reduction of fuel consumption and decreasing of the emanations of CO2 as contaminant of environment in air service companies

    International Nuclear Information System (INIS)

    A management protocol is developed for air services companies to improve the eco-efficiency of its processes. The application of operational procedures have allowed the reduction of fuel consumption and decreased the emanations of CO2 into the environment. The methodology of the research has consisted in quantitative and qualitative analysis of the variables and processes that have influenced significantly in the operation of airline fleet. An integral analysis is realized of the procedures of management and use of resources in the cockpits of the aircraft (Cockpit Resource Management) and navigation based in performance (NBP). The results of analysis are used to elaborate a protocol to minimize the fuel consumption and energy through the application of practices and operational procedures more efficient and safe. The environmental burdens associated with the services that are provided in the airline industry are minimized. The application of methods of improvement and procedures that are updated continuously have achieved the sustainability of the protocol. The operational procedures are applied to decrease the fuel consumption. Sensitization programs are developed for the utilization of more efficient operational practices and friendly with the environment. An incentive program is implemented to optimize the fuel consumption safely by pilots. A new procedure of flight scheduling is modified based on performance of the pilots and fleet degradation factors, assigning the pilots who have had higher consumption to airplanes with lower degradation, and the pilots who have had lower consumption, to airplanes with higher degradation. A self-liquidating incentive plan is developed based on the savings achieved in the operation in high-performance, could reinforce the change of attitude necessary for the group of pilots can support the implementation of the protocol

  2. Selection game model of air service provider based on corporate social responsibility%基于企业社会责任的航空服务商选择博弈模型

    Institute of Scientific and Technical Information of China (English)

    王桂花; 李南

    2015-01-01

    The concept of corporate social responsibility was proposed,and the performance level and performance strength of corporate social responsibility for air service provider were redefined. The game case between the core enterprise of supply chain and air service provider was divided into four types,and the selection game model of air service provider based on corporate social responsibility was set up.The critical cooperation intentions of short-term cooperation and long-term cooperation for the core enterprise of supply chain and the critical performance probabilities of short-term cooperation and long-term cooperation for air service provider were calculated,and the relationship between the performance level of corporate social responsibility and the selection of air service provider was analyzed.Analysis result shows that when the performance level of corporate social responsibility for air service provider is 0.5,the core enterprise of supply chain requires that the performance probability of corporate social responsibility for general air service provider should be over 40%,and the performance probability of corporate social responsibility for strategic air service provider should be over 80%.When the cooperation intention of core enterprise for supply chain is over 41.67%,the general air service provider will actively perform the corporate social responsibility,but only when the cooperation intention is over 83.33%,the strategic air service provider will actively perform the corporate social responsibility.When the performance level of corporate social responsibility for air service provider is 0.1,0.2,0.3,0.4, 0.5,0.6,0.7,0.8,0.9 respectively,the core enterprise of supply chain requires that the performance probability of corporate social responsibility for strategic air service provider should be over 94.6%,90.0%,86.2%,82.6%,80.0%,77.5%,75.3%,73.3%,71.6% respectively. Compared with the traditional method,the proposed model not only defines the specific

  3. Variability of Compet itive Factors in Air Transportation and Improving Customer Satisfaction with Service Innovation: A New "Mile + Time Score" Application

    Directory of Open Access Journals (Sweden)

    Süleyman Can Yıldırır

    2015-03-01

    Full Text Available As in all the world, airlines transportation in our country is increasing every day. Rapid transport, reasonable price and high quality service is the reaso n for this increase. Both local and foreign airline companies have accelerated their activities as result of this rapid growth in air transportation sector. Over the time, these enterprises reached a level to go head to head with each other about the quality, price, transport network and they have begun to use similar applications as element of competition. The aim of this study is; to determinate the factors that influence to the customer’s preferences about airline companies and to be a source for enter prises to increase customer satisfaction. For this reason, in addition to “bonus miles” application which is used of almost all airline companies, example of “miles+time score” application was made and evaluated the impact of eliminating in terms of custom er victimization. As a result of the survey applied to 444 people; it is also identified that the impact of the “miles + time” application at the preferences of customers as well as positive and negative factors affecting the enterprises of preferences.

  4. Pyramiding PvPGIP2 and TAXI-III But Not PvPGIP2 and PMEI Enhances Resistance Against Fusarium graminearum.

    Science.gov (United States)

    Tundo, Silvio; Kalunke, Raviraj; Janni, Michela; Volpi, Chiara; Lionetti, Vincenzo; Bellincampi, Daniela; Favaron, Francesco; D'Ovidio, Renato

    2016-08-01

    Plant protein inhibitors counteract the activity of cell wall-degrading enzymes (CWDEs) secreted by pathogens to breach the plant cell-wall barrier. Transgenic plants expressing a single protein inhibitor restrict pathogen infections. However, since pathogens secrete a number of CWDEs at the onset of infection, we combined more inhibitors in a single wheat genotype to reinforce further the cell-wall barrier. We combined polygalacturonase (PG) inhibiting protein (PGIP) and pectin methyl esterase inhibitor (PMEI), both controlling the activity of PG, one of the first CWDEs secreted during infection. We also pyramided PGIP and TAXI-III, a xylanase inhibitor that controls the activity of xylanases, key factors for the degradation of xylan, a main component of cereal cell wall. We demonstrated that the pyramiding of PGIP and PMEI did not contribute to any further improvement of disease resistance. However, the presence of both pectinase inhibitors ensured a broader spectrum of disease resistance. Conversely, the PGIP and TAXI-III combination contributed to further improvement of Fusarium head blight (FHB) resistance, probably because these inhibitors target the activity of different types of CWDEs, i.e., PGs and xylanases. Worth mentioning, the reduction of FHB symptoms is accompanied by a reduction of deoxynivalenol accumulation with a foreseen great benefit to human and animal health.

  5. Facility Registry Service (FRS)

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Facility Registry Service (FRS) provides an integrated source of comprehensive (air, water, and waste) environmental information about facilities across EPA,...

  6. 北京地区出租汽车司机超重与肥胖调查分析%Investigation and Analysis on Overweight and Obesity of Taxi Drivers in Beijing Area

    Institute of Scientific and Technical Information of China (English)

    王洪瑛

    2011-01-01

    [Objective]To understand the present status of overweight and obesity among taxi drivers in Beijing area. [Methods] The physical examination was conducted in 5941 taxi drivers, and the characteristics of overweight and obesity were analyzed. [ Results] Among the 5941 taxi drivers, there were 1009 cases of overweight and obesity, which accounted for 67.48% , and the in-cidence was significantly higher than that of the general population. [ Conclusion] The incidence of overweight and obesity among taxi drivers is high. It is necessary to improve the health management, in order to prevent and control the chronic diseases.%目的 了解北京地区出租汽车司机超重与肥胖状况.方法对5941例出租汽车司机进行体格检查,分析超重、肥胖的特征.结果5941例出租汽车司机中超重、肥胖者4009例,占67.48%,明显高于一般人群.结论出租汽车司机超重、肥胖发生率高,应加大健康管理,预防控制慢性疾病发生.

  7. 出租车司机体检结果分析及健康教育对策%Analysis of Physical Examination Results of taxi drivers and the Countermeasures of health Education

    Institute of Scientific and Technical Information of China (English)

    金静

    2014-01-01

    In order to understand the health conditions of taxi drivers,1402 taxi drivers are given free physical examination,in Wuhan City.Through statistical a-nalysis,found that overweight,high uric acid and high blood fat are the three major problems affecting the health of the taxi driver .Causes this kind of condition is not eat-ing on time,not sleeping enough,liking hold regular habits.Medical experts recommend the taxi drivers must set up the concept of health ,diet,exercise,psychological ad-justment.%为了了解出租车司机的健康状况,对武汉市1402名出租车司机进行了免费健康体检,经过统计分析,发现超重、尿酸偏高和高血脂是影响出租车司机健康的三大隐患,导致这种状况是吃饭不定时、睡眠不足、喜欢憋尿等恶习造成的。体检专家建议出租车司机们要树立健康理念、合理饮食、适量运动、调整心态。

  8. Aircrafts' taxi noise emission

    OpenAIRE

    Asensio Rivera, César; Pagán Muñoz, Raúl; López Navarro, Juan Manuel

    2008-01-01

    During planning stages, when noisy activity has not been implanted or while evaluating operation changes, it is necessary to find an environmental noise mapping prediction tool for future scenarios. When an activity is already implanted, it is possible to measure noise emissions, but this is expensive, so prediction tools can also be useful. Because of these reasons, for the last 10 years, as a response to the increasing concern for noise pollution in developed countries, several simulation m...

  9. Bangkok and its air pollution problem

    Energy Technology Data Exchange (ETDEWEB)

    Panich, S.

    1995-12-31

    Bangkok is the city on a former river delta and is a very flat area. The topography is unremarkable but being only a few kilometers (about 20) from the sea in the Gulf of Bangkok, the City experiences the sea breeze every afternoon and evening. The natural phenomenon is caused by the uplifting of hot air from the sun-baked ground and heat generation in the city, to be replaced by the cooler air from the sea, which is to the south. During the nighttime the sea breeze ceases to operate as the ground temperature cools down. The late night and early morning is characterized by the calm or no wind. With 2.1 million vehicles, the city has a serious problem of carbon monoxide from the gasoline vehicles stuck in the traffic on start and stop cycles, while particulate matter is the result of diesel vehicles. Hydrocarbons mainly result from two-stroke motorcycles and tuk-tuk (three-wheeled) taxis. Air pollution in Bangkok and major cities of Thailand is the result of emissions from gasoline, diesel, and LPG fueled vehicles, which contribute to the observed levels of carbon monoxide, lead, particulate matter, sulfur dioxide, nitrogen dioxide, ozone and hydrocarbons. The industrial activities contribute smaller share due to tall stacks and more efficient combusting processes and pollution control.

  10. Kinetics and substrate selectivity of a Triticum aestivum xylanase inhibitor (TAXI) resistant D11F/R122D variant of Bacillus subtilis XynA xylanase

    DEFF Research Database (Denmark)

    Rasmussen, Louise Enggaard; Sørensen, Jens F.; Meyer, Anne S.

    2010-01-01

    ), water-unextractable arabinoxylan (WUAX), birchwood xylan, and wheat bran. Both the BsX and the BsX(mut) catalyzed the release of xylo-oligosaccharides with higher degree of polymerization from WUAX than from WEAX. At equimolar addition levels the activity of the BsX(mut) was lower than that of the Bs......X with respect to both the initial rate and the product yields obtained after prolonged reaction on the xylan substrates. The calculated substrate selectivity factors indicated that the BsX and the BsX(mut) both had higher catalytic rate on WUAX than on WEAX. Addition of a 100:1 (TAXI:xylanase) molar ratio...

  11. Évaluer les services rendus par les dépendances vertes des infrastructures linéaires de transport : une démarche exploratoire

    OpenAIRE

    Labarraque, Dorothée

    2016-01-01

    Les dépendances vertes des infrastructures linéaires de transport, par les processus écologiques qui s’y exercent, peuvent rendre des services à la société humaine. Quels sont-ils ? Peut-on, et y a-t-il un intérêt à faire varier, en nombre et/ou en quantité, ces services ? L’article, sur la base d’un cas concret, propose une évaluation préliminaire des services produits par les habitats naturels des dépendances de l’infrastructure. Pour une infrastructure de transport routier et ferroviaire, ...

  12. Air Pollution

    Science.gov (United States)

    Air pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust, pollen and ... Ozone, a gas, is a major part of air pollution in cities. When ozone forms air pollution, ...

  13. Audiology Services Manual.

    Science.gov (United States)

    Gallaudet Coll., Washington, DC. Pre-College Programs.

    The manual describes audiology services offered at the Model Secondary School for the Deaf (MSSD). Components are listed for diagnostic services, instructional services, program development, training, and publications. Testing and reporting procedures for MSSD students are outlined. Testing includes pure-tone air conduction testing, tympanometry,…

  14. 高速无人机着陆滑跑纠偏联合仿真研究%Co-simulation Research of Deviation Correction Control for High-speed UAV Taxiing

    Institute of Scientific and Technical Information of China (English)

    王永全; 魏小辉; 尹乔之; 李洁玉

    2016-01-01

    The deviation-correction control model for high-speed unmanned aerial vehicle( UAV) taxiing was studied. A combined deviation-correction control structure was proposed which employed rudder de-flection and main-wheel differential braking. The whole aircraft dynamic model that contains the drag parachute,aerodynamic control surfaces and landing gear was established with dynamics software LMS Virtual. Lab Motion,and aircraft taxiing model co-simulation and analysis with Matlab/Simulink control model,to verify the performance of aircraft landing taxiing under strong crosswind. The simulation results show that the designed control system meets the performance requirements for the high-speed UAV,and it could realize effective deviation-correction control for the full taxiing stage on this aircraft.%针对高空高速无人机着陆地面滑跑过程中的侧向偏移问题,建立了差动刹车和方向舵联合纠偏控制系统。使用动力学软件LMS Virtual. Lab Motion建立了包含阻力伞、气动舵面和起落架等设计因素的全机动力学模型,并与Matlab/Simulink控制模型进行全无人机着陆滑跑联合仿真分析,验证了在侧风情况下无人机着陆滑跑纠偏性能。仿真结果表明,所设计控制系统满足性能指标要求,在无人机的整个滑跑阶段均有良好的抗风纠偏效果。

  15. Passengers’ perceptions of low cost airlines and full service carriers: a case study involving Ryanair, Aer Lingus, Air Asia and Malaysia Airlines

    OpenAIRE

    O'Connell, John F.; Williams, George

    2005-01-01

    Direct competition between full service airlines and no-frills carriers is intensifying across the world. US and European full service airlines have lost a significant proportion of their passengers to low cost carriers, the experience now being repeated in the domestic markets of Asia. This paper attempts to provide answers to a number of critical questions: What are the key drivers of each type of airline's business model? Is there a difference in passengers’ perceptions between low cost ca...

  16. Air Abrasion

    Science.gov (United States)

    ... delivered directly to your desktop! more... What Is Air Abrasion? Article Chapters What Is Air Abrasion? What Happens? The Pros and Cons Will I Feel Anything? Is Air Abrasion for Everyone? print full article print this ...

  17. Hadoop支持下海量出租车轨迹数据预处理技术研究%Based on the Hadoop Massive Taxi Trajectory Data Preprocessing Technology Research

    Institute of Scientific and Technical Information of China (English)

    吕江波; 张永忠

    2016-01-01

    海量出租车轨迹数据预处理是轨迹数据挖掘和应用的前提。出租车轨迹数据是典型的大数据,传统的数据处理技术无法解决大规模出租车轨迹数据误差分析和处理问题,文章在分析轨迹数据误差来源和误差类型的基础上,提出基于Hadoop的海量出租车轨迹数据预处理模型,使用Hive实现轨迹数据误差统计分析,设计MapReduce并行处理程序实现轨迹数据预处理。实验结果表明,该模型可以有效解决大规模出租车轨迹数据预处理问题,处理方式可靠性较高,大大提高了轨迹数据预处理效率,为后期轨迹数据深入挖掘和分析奠定了基础。%Massive taxi trajectory data preprocessing is the precondition of trajectory data mining and the application. Taxi trajectory data is a typical big data,the traditional data processing technology can not solve the problem of large scale taxi track data error analysis and preprocessing,on the basis of analyzing the trajectory data error source and error type, study of mass trajectory error statistical analysis method and data processing method,the taxi trajectory data preprocessing model based on Hadoop is put forward,using the hive for the realization of the trajectory error statistics,design MapReduce parallel processing procedures for the realization of trajectory data preprocessing. Experimental results show that,the model can effectively solve the problem of large scale taxi trajectory data preprocessing,high reliability,greatly improve the effi-ciency of the trajectory data preprocessing,late for trajectory data digging and analysis laid a foundation.

  18. 无缝隙对接在空勤科医疗保障中的应用%Application of Seamless Handover in Special Medical Service for the Air Serviceman

    Institute of Scientific and Technical Information of China (English)

    薛娟; 于涛; 陈燚

    2014-01-01

    目的:通过无缝隙对接在空勤科医疗保障中的应用提高飞行人员满意度。方法宣传、执行无缝隙对接,深入细节,分工明确,抓好质量,落实回访。结果根据科室层面综合评价指标,门诊、住院人数增加,飞行人员满意度上升。讨论无缝隙对接适应空勤科医疗保障的新特点。%Objective To improve the satisfaction of flight personnel on air force special medical service through seamless handover.Methods To propagate and implement seamless handover , and attach much impor-tance on details and implementing return .Results According to the comprehensive evaluation of the department level indicators, the quantities of outpatient and inpatient increased .The satisfaction rate also increased.Discus-sio n Seamless handover does adapts to the new features of air force special medical service .

  19. 19 CFR 122.165 - Air cabotage.

    Science.gov (United States)

    2010-04-01

    ... AIR COMMERCE REGULATIONS Penalties § 122.165 Air cabotage. (a) The air cabotage law (49 U.S.C. 41703... provided for in 14 CFR 121.153, and those aircraft used exclusively in the service of any government. (b... 19 Customs Duties 1 2010-04-01 2010-04-01 false Air cabotage. 122.165 Section 122.165...

  20. Surface-to-Air Radar Jamming System Service Efficiency Analysis Based on Queuing Theory%基于排队论的地对空雷达干扰系统服务效能分析

    Institute of Scientific and Technical Information of China (English)

    陈立; 潘谊春; 王冰切

    2011-01-01

    Based on the characteristics of modern EW and air-defense operation, and applying the principle of queuing theory, several efficiency analysis models close to actual combat are built up.After the calculation and analysis to the combat scene, the author deeply researches the service efficiency of the surface-to-air radar jamming system.What this paper achieves may be good references for aiding decisionmaking for commanders and configuration optimization of the surface-to-air radar jamming system.%结合现代电子战和防空作战特点,运用排队论理论,分别建立了不同条件下实战背景的地对空雷达干扰系统效能分析模型.通过作战想定和计算分析,深入研究了地对空雷达干扰系统的服务效能.对辅助指挥员决策,优化兵力配置等都有一定的参考价值.

  1. Research on the Service Probability of the Ground Air Defense System Based on the Queuing Theory%基于排队论的地面防空系统服务概率研究

    Institute of Scientific and Technical Information of China (English)

    朱雪平; 李东伟; 王敬华

    2013-01-01

    排队理论计算地面防空系统的服务(可射击)概率时,因计算模型的制约,可能使计算结果大于实际结果,影响防空兵指挥员指挥决策的准确性.对此,根据地面防空系统的主要特征,分析了引起计算误差的因素和误差的可能取值范围,克服了排队论模型的局限性,为计算结果的修正提供了依据.%This study considers calculating the service probability of the Ground Air Defense system by using Queuing Theory. Due to the constraint of calculated models, the calculated result may be greater than the actual result, which affects Air Defense Force Commanders' precise command decision. In accordance with the Ground Air Defense System's main features, this study analyses the factors and the probable range of the calculated errors, surmounts the Queuing Theory model's limitations and provides the evidence for revising the calculated results.

  2. Air Quality in Mexico City: Policies Implemented for its Improvement

    Science.gov (United States)

    Paramo, V.

    2007-12-01

    stringent emission levels of the gasoline fleet; update the detention of pollutant vehicles program; partial exemption of the inspection and maintenance program for cleaner and or highly efficient vehicles; substitution of 3,000 microbuses, 40,000 taxis and 1,200 buses; commissioning of the first Bus Rapid Transit system; implementation of a program for the emissions reduction for the 300 most polluted industrial facilities; and continuous update of the air quality environmental management programs. To continue improving the air quality in the MCMA, the environmental authorities will continue the implementation of the 2002-2010 Air Quality Improvement Program. In 2007 the Green Program was started, this includes those actions that have proven to be effective reduction of pollutant emissions and incorporates new actions for the reduction of local and global pollutant emissions. The most important of these new actions are: substitution of 9,500 microbuses; renewal of all the taxis fleet; commissioning of 10 Bus Rapid Transit lines; commissioning of Line 12 of the underground system; schedules and routes limitations to the cargo fleet; increase 5 percent the number of non-motorized trips (bicycling and walking); regulation of the private public transport passenger stops; requirement of private schools to provide school transport; regulation of non-occupied taxis in circulation; modifications to the circulation of 350 critical crossing points in the city; adoption of intelligent traffic lights systems; complete substitution of the local government vehicle's fleet; implement the inspection and maintenance of the cargo fleet; introduction of low- sulfur diesel, among other measures.

  3. (1.Hechi Service, Maintenance Method of Upper-air Weather Station Back-up Power%高空站后备电源维护方法

    Institute of Scientific and Technical Information of China (English)

    覃晓玲; 赵建吉; 曾斌

    2011-01-01

    对目前高空站所使用的后备电源的维护方面,参考有关资料,结合台站的工作经验,总结出备份电源的维护与保障方法,为各台站在日常使用备份电源时提供一定参考。%Based on back-up power used in upper-air stations and work experience, some maintenance methods were discussed.

  4. Free Trade in Airline Services: Assessing the Proposals to Liberalize the Canada – U.S. Air Transport Bilateral

    OpenAIRE

    Gillen, David W.; Hansen, Mark; Ramos, Robson

    1990-01-01

    In this paper we examine the consequences of changes to the bilateral agreement which regulates air transport between Canada and the United States. A hubbing competition model based on an n-player non-cooperative game is used to simulate six alternative bilateral scenarios including the current positions of Canada and the U.S.. We find that changes to the bilateral does not have a significant effect on the total amount of traffic but it does effect the distribution of traffic between countrie...

  5. Making the customer the co-producer : A critical incident study on customer satisfaction and self-service channel choice in commercial air travel

    OpenAIRE

    Huotari, Henrik

    2012-01-01

    This thesis is based on a case study of an airline’s (Scandinavian Airlines (SAS)) customers’ views on self-service technologies for check-in; mobile check-in, internet check-in, and machine (kiosk) check-in. The first aim of the paper was to find sources of satisfaction and dissatisfaction in the airline industry. A number of critical incidents leading to satisfactory and dissatisfactory experiences have been categorized by using the critical incident technique method based on customers’ rec...

  6. 道路环境对营运出租车与摩托车相撞事故的防范研究%Research on Taxi Operation Collided with a Motorcycle Accident Prevention

    Institute of Scientific and Technical Information of China (English)

    覃巍

    2014-01-01

    Roads reasons also contributed an important aspect of operating a taxi collided with a motorcycle.As two -wheelers,motorcycles and more vulnerable due to road design,construction,maintenance and road conditions such as road environment.According to a city taxi operations and informed analysis identified a motorcycle accident liability,there is no road leading to environmental problems found responsible for the accident.But this does not explain the city's road environment without any impact on traffic accidents,but the city's transportation department to consider the issue described in the accident statistics in different angles,so the study of the road but also preventive operations taxi collided with a motorcycle accident an important aspect.Through traffic accident cases a section of a city with a motorcycle taxi operations in recent years occurred,summary and analysis of the causes of the accident and therefore,based on this study and build working environment based on road motorcycle collided with a taxi and prevention system,which can effectively prevent and reduce operating taxi collided with a motorcycle accident,reduce accidents mortality,reduce economic losses,effectively curb serious accidents.%道路原因是造成营运出租车与摩托车相撞的一个重要方面。作为两轮车,摩托车更易受因道路设计、施工、养护和路面情况等道路环境的影响。根据某市的营运出租车与摩托车事故责任认定分析获知,没有对道路环境问题导致事故责任的认定。但这并不能说明该市的道路环境对交通事故无任何影响,只是说明该市交通部门在事故统计中考虑问题的角度不同,所以对于道路的研究也是预防营运出租车与摩托车相撞事故发生的一个重要方面。文中通过某市一路段近年来营运出租车与摩托车发生的交通事故案件,总结和分析研究引起事故的成因,在此基础上研究并构建基于道路环境的

  7. Analysis and Simulation of a Large Amphibian Aircraft Taxiing%大型水陆两栖飞机地面滑跑稳定性分析与仿真

    Institute of Scientific and Technical Information of China (English)

    韩纪军; 许锋; 聂宏

    2012-01-01

    The landing gear system works in concert with the safety of the aircraft's take off and landing directly, therefore it is one of the most important parts and systems of an aircraft. The landing gear design of an amphibian aircraft need to coordinate aerodynamics and liquid dynamics. It is a complicated dynamical problem, and it is the problem which is faced during the process of the large amphibian aircraft design nowadays. Depending on multi - body dynamical theories and the simulating plate of LMS Virtual. Lab, the dynamical model of a large amphibian aircraft taxiing process is proposed. By simulating the model, the a-nalysis of the heading stability during taxiing is conducted. The dynamical analysis and simulation of a large amphibian aircraft's heading taxiing is achieved.%起落装置直接关系到飞行器的起飞与着陆安全,是其重要部件和系统之一.大型水陆两栖飞机的起落架设计需在空气动力学与水动力学领域得到协调,是一个更为复杂的动力学问题,同时也是当前大型飞机研制中亟待解决的问题之一.基于多体动力学理论与LMS Virtual.Lab仿真环境,建立某大型水陆两栖飞机地面滑跑过程的动力学模型,通过对其地面对称滑跑等情况的仿真计算,着重对滑跑过程中的航向稳定性进行分析,实现水陆两栖飞机对称滑跑动力学分析与仿真.

  8. Clustering Taxi Quantity Regulatory Levels of Chinese Capital Cities%中国省会城市客运出租汽车数量管制强度分类

    Institute of Scientific and Technical Information of China (English)

    姚志刚; 程高

    2012-01-01

    由于不同管制目标下的城市客运出租汽车数量管制绩效存在差异,为掌握省会城市客运出租汽车数量管制强度,将人口拥有率、建成区面积拥有率、公交客运量比率、GDP拥有率、道路面积拥有率和对外客运量比率作为分类指标,运用模糊-均值聚类法对中国省会城市客运出租汽车的数量管制强度进行分类,进行Matlab 7.0编程,经聚类有效性分析和F-统计量检验后获得最佳分类方案.结果表明,将31个样本城市的客运出租汽车数量管制强度分为低、较低、中、较高、高5个等级最佳,分类结果为建立出租汽车数量调控模型奠定了基础.%Different purposes of taxi quantity control lead to different performances of quantity regulation in Chinese urban areas. To obtain a clear division of taxi quantity regulation levels of Chinese capital cities, a fuzzy c-means clustering is presented. The paper identifies six important demanding factors such as population, urban built-up area, transit volume, GDP, road area and amount of intercity passenger to get the corresponding indexes of urban taxi quantity regulatory levels. An efficient classification scheme is selected with clustering effectiveness analysis and F-statistics test after running a dedicated the MATLAB 7. 0 program. The result indicates that thirty-one capital cities of mainland China are definitely classified into five categories. The categorization of quantity regulatory levels in this paper provide references for formulating the of taxi license supply models.

  9. Construction of Air Quality Real-time Collaborative Service System in Changzhou City%常州市空气质量实时发布协同服务体系建设

    Institute of Scientific and Technical Information of China (English)

    孙南; 蔡继军

    2014-01-01

    从空气质量实时发布的发布接口、集成环节、发布要素三个方面建立空气质量实时发布协同服务体系,在此基础上建立了协同服务框架,对发布信息的统计计算、数据质控、数据聚合计算、数据自动化处理等功能进行阐述,由此保证了不同层次、不同接口间发布信息的质量和一致性,具有较大的实际应用价值。%On the basis of real-time air quality publishing service systeme stablished from the interfaces,integrated parts and release factors,the framework of collaborative services has been built,which publishes information of statistical computing,data quality con-trol,data aggregation calculation ,automated data processing and other functions,ensuring the quality and consistency of different lev-els and different interfaces.It definitely has practical value.

  10. CASE COMMENT ON NATIONAL LEGAL SERVICES AUTHORITY V. UNION OF INDIA & OTHERS (AIR 2014 SC 1863: A RAY OF HOPE FOR THE LGBT COMMUNITY

    Directory of Open Access Journals (Sweden)

    M.K. Sahu

    2016-01-01

    Full Text Available The lives of human beings are full of complexities, but LGBT face much more trauma compared to other people. What is necessary is to understand the sentiments of the LGBT community and also to grant them common human rights. But the world lowers its eyes and refuses a discussion over the granting of basic human rights to the LGBT community. And it is so sad to see that such discrimination exists even in the 21st century. Indian law, on the whole, only recognizes the paradigm of the binary genders of male and female, based on a person’s sex assigned at birth, which permits a gender system, including the laws relating to marriage, adoption, inheritance, succession and taxation, and welfare legislation. The most pertinent question with respect to the LGBT community is whether LGBT are to be discriminated against by other human beings. Merely being different does not give others the authority to ostracize one from society. In fact, in July 2009 the Delhi High Court ruled that consensual same-sex relations between adults in private could not be criminalized. Then in a recent judgment, the Supreme Court of India expressed its concerns over the mental trauma, emotional agony and pain of the members of the transgender community: all forms of mental suffering of the LGBT community, as well as ignorance and isolation of the community, were brought to an end by the Court’s decision in National Legal Services Authority v. Union of India & Others.

  11. Air pollution and respiratory diseases in African big cities : the case of Cotonou in Benin

    International Nuclear Information System (INIS)

    Cotonou is one of the most polluted cities in west Africa because of its preferred mode of transportation for residents, the zemidjan. The zemidjan is a two-wheeled vehicle taxi whose motorcycle exhaust emits air pollution, creating health risks for drivers, passengers and residents. The pollution contributes to respiratory diseases and other ailments such as respiratory infection, cardiovascular diseases, and cancer. This paper describes and statistically analyses the pollution problem in Cotonou by presenting information on the city of Cotonou, examining environment quality indicators (such as air quality) and presenting an overview of the situation. It also estimates and forecasts the human health risks to Cotonou residents. It reviews the measures taken by central and local governments to protect citizens against these risks. The paper also makes several recommendations including: organize a permanent and formal monitoring system for air quality management in the city; create stronger local laws and rules to regulate air pollution in the city; involve the population living in the city in decision making processes; and, conduct research studies on the perception and behaviour of the population towards environmental issues such as air pollution and air quality. 6 tabs., 1 fig., 11 refs

  12. Air quality and air quality related values in Chassahowitzka National Wildlife Refuge and Wilderness Area

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Chassahowitzka Wilderness Area is a Class I air quality area administered by the U.S. Fish and Wildlife Service. Despite the special protection mandated for...

  13. Impact of Hong Kong's Voluntary Catalytic Converter Replacement Programme on Roadside Air Quality

    Science.gov (United States)

    Simpson, I. J.; Guo, H.; Louie, P. K. K.; Luk, C.; Lyu, X.; Meinardi, S.; Yam, Y. S.; Blake, D. R.

    2015-12-01

    As part of its ongoing policies to improve roadside air quality, in 2013 the Hong Kong government launched an incentive programme to replace catalytic converters and oxygen sensors in taxis and light buses mainly fueled by liquefied petroleum gas (LPG). The majority of replacements occurred from October 2013 to April 2014, with 75% of eligible vehicles participating in the programme, or 16,472 vehicles. Based on taxi exhaust measurements at a Hong Kong vehicle testing facility, the concentrations of n-butane, propane and i-butane (the primary components of LPG) decreased by 97% following the replacements. To determine the impact of the programme on roadside air quality, long-term measurements of volatile organic compounds (VOCs) were analyzed before, during and after the replacement programme, mainly at a busy roadside location in Mong Kok, Hong Kong. A clear decrease in the levels of major pollutants associated with LPG vehicle exhaust was observed at the roadside. For example, average (± 1 standard deviation) n-butane levels from October to April decreased from 13.0 ± 3.6 and 13.9 ± 2.6 ppbv in the two years preceding the programme, to 9.2 ± 2.9 ppbv during the programme, to 6.2 ± 1.7 ppbv the year after the programme. By contrast, compounds such as i-pentane that are not strongly associated with LPG or with LPG exhaust remained steady, averaging 0.90 ± 0.34, 1.01 ± 0.31, 0.93 ± 0.37, and 0.91 ± 0.42 ppbv from October to April of 2011/12, 2012/13, 2013/14 and 2014/15, respectively. Impacts of the programme on roadside levels of nitrogen oxides (NOx) and ozone (O3) will also be discussed. Because many taxis are high mileage vehicles that travel several hundred kilometers daily, their catalytic converters need to be replaced approximately every 18 months. Therefore ongoing vehicle maintenance will be required in order to preserve the gains made from this initial subsidy programme.

  14. European Private Law: Up in the Air?

    OpenAIRE

    Luzak, J.; Bobek, M.; Prassl, J.

    2016-01-01

    This paper compares the existing rights granted to consumers when they purchase services in the EU, whether in a shop or within a distance selling scheme, with the provisions of Regulation 261/2004. While the works on the new European rules on air passengers’ rights are still ongoing it is important to examine what protection measures the air passengers are currently missing that European consumers may already be enjoying while concluding contracts other than for air transport services. Addit...

  15. Proposal for the award of a contract for the design, supply, installation and commissioning of a ventilation and air conditioning system for the ECN3 experimental area and the TCC8 and GHN300 service tunnels and for the dismantling of the existing system

    CERN Document Server

    2014-01-01

    Proposal for the award of a contract for the design, supply, installation and commissioning of a ventilation and air conditioning system for the ECN3 experimental area and the TCC8 and GHN300 service tunnels and for the dismantling of the existing system

  16. Comparison between PEMS and VMAS Based on Taxi Emission Measurement%出租车PEMS与VMAS排放测试比较

    Institute of Scientific and Technical Information of China (English)

    方荣华; 彭美春; 吴晓伟; 李剑锋; 林怡青

    2011-01-01

    For a LPG taxi, the difference and correlation between PEMS and VMAS were studied. Using the VMAS and PEMS respectively, the CO, HC and NOx emission were measured by IG195 short transient driving cycles on the roller test bench. Through comparing and analyzing the emission rate and exhaust factor of the two systems, the emission trends of corresponding working conditions were found to be the same. The measurement principles between them were different. The emission rate and exhaust factor of PEMS were larger than those of VMAS, but the measurement results of PEMS were more accurate. The liner correlation coefficient of CO, HC and NOx exhaust rate between PEMS and VMAS was 0. 881 9, 0. 868 1, and 0. 772 3 respectively, which indicated that the two emission measurement systems had good liner correlation.%以1辆LPG出租车为研究对象,研究PEMS排放测试与VMAS排放测试的差异性与相关性,在转鼓试验台上按IG195简易瞬态工况运行,分别采用VMAS与PEMS排放测试系统进行CO,HC与NOx排放测试.对排放速率、排放因子测试结果进行对比分析,发现两种测试方法下对应工况排放值的变化趋势相同;两者测试原理不同,PEMS测得的CO,HC与NOx的排放速率、排放因子均较VMAS大,PEMS测试结果更准确;VMAS测试方法与PEMS测试方法测得的CO,HC,NOx的排放速率线性相关系数分别为0.881 9,0.868 1,0.772 3,两者存在较好的线性相关性.

  17. 14 CFR 272.8 - Obligation to continue service.

    Science.gov (United States)

    2010-01-01

    ... PROCEEDINGS) ECONOMIC REGULATIONS ESSENTIAL AIR SERVICE TO THE FREELY ASSOCIATED STATES § 272.8 Obligation to... eligible Freely Associated State place below the level of essential air service to such place, whether or not the Department has previously determined the level of essential air service to such place,...

  18. Privatisation des services urbains et desserte des quartiers défavorisés : une responsabilité sociale en partage.
    Le cas des services d'eau et d'assainissement, d'électricité et de télécommunications dans les quartiers « carenciados » de l'agglomération de Buenos Aires (Argentine) de 1991 à 2004

    OpenAIRE

    Botton, Sarah

    2005-01-01

    This thesis confronts the notion of "privatization" with that of "universal urban services" byquestioning the concept of "corporate social responsibility" It investigates the management practices of water, electricity and telecommunications operators in the greater Buenos Aires with respect to a "new" category of customers: those who live in shantytowns, lower-income neighbourhoods or housing projects, grouped in this research under the heading of carenciados neighbourhoods. The basic urban s...

  19. Thin air

    OpenAIRE

    Jasanoff, Sheila

    2013-01-01

    Clearing the air How do we grasp the air? Without Michel Callon’s guidance, I might never have asked that question. Years ago, when I first entered environmental law practice, I took it for granted that problems such as air pollution exist “out there” in the real world for science to discover and law to fix. It is a measure of Callon’s influence that I understand the law today as a metaphysical instrument, no less powerful in its capacity to order nature than the tools of the ancient oracular...

  20. Estimation Models for Average Speed of Traffic Flow Based on GPS Data of Taxi%基于出租车GPS数据的路段平均速度估计模型

    Institute of Scientific and Technical Information of China (English)

    姜桂艳; 常安德; 李琦; 伊峰

    2011-01-01

    The existing average speed estimation models based on GPS ( global positioning system) data of taxis are not applicable where high precision and low cost are of necessities. Two traditional models, namely a time integral model and a time interpolation model, based on the GPS data of taxis were modified, and the two modified models were combined to form a hybrid model. The three new models were verified using GPS data of taxis obtained from a part of road network of a large city. The results shown that the estimating precisions of the two modified models increased by 1. 5% and 19.7% , respectively, compared with the original time integral model and time interpolation model, and those of the hybrid model by 2. 8% and 8. 8% , respectively, compared with the two modified models.%为了解决现有基于GPS数据的路段平均速度估计模型应用条件苛刻、难以满足低成本和高精度信息需求问题,考虑不同类型GPS车辆运行特征,设计了两个基于出租车GPS数据估计路段平均速度的改进模型.基于两个改进模型,设计了路段平均速度的融合估计方法.用某城市局部路网的出租车GPS数据验证两个改进模型,并与传统模型进行了对比分析.结果表明,在不增加成本的条件下,两个改进模型的估计精度分别比传统模型提高了1.5%与19.7%;融合估计方法的精度比两个改进模型分别提高了2.8%与8.8%.

  1. Air sea ratio reduction initiative

    Energy Technology Data Exchange (ETDEWEB)

    Oberle, Jean

    2010-09-15

    Airfreight is the most expensive mode of transportation as well as the most impacting in terms of CO{sup 2} emissions. It is 7 times more expensive on average to ship by air than shipping by sea 1. Airfreight transportation mode emits 30 times more CO{sup 2} than sea freight mode 2. These elements provided a compelling platform to design a global logistics program to initiate a modal shift from air to sea freight without compromising service to customers.

  2. La automatización y los servicios de las bibliotecas de acceso público de la ciudad autónoma de Buenos Aires y sus alrededores en el marco de la sociedad de la información Public libraries automation and services in buenos aires and surrounding areas in the information society framework

    Directory of Open Access Journals (Sweden)

    Elsa Barber

    2004-12-01

    Full Text Available Se estudia la relación existente entre el nivel de automatización alcanzado y el uso de las nuevas tecnologías para brindar servicios de alto valor agregado, en el ámbito de las bibliotecas de acceso público de la Ciudad Autónoma de Buenos Aires y sus alrededores. Se presenta un diagnóstico de la situación actual, con el objetivo de determinar si estas unidades están preparadas para responder a las necesidades de la comunidad a la cual sirven en la sociedad de la información. Se aplica una encuesta, con preguntas cerradas, estructurada sobre la base de las siguientes categorías: información general, recursos, automatización, control bibliográfico, integración en redes, servicios y financiamiento. La investigación se realiza sobre la base de 73 respuestas proporcionadas por las bibliotecas relevadas. Se verifica la falta de adopción de estándares con miras al intercambio y el procesamiento distribuido de la información, la ausencia del control de calidad de la información, el aprovechamiento limitado de las tecnologías de información y comunicaciónThe existing relationship between the achieved automation level and the use of new technologies to provide high value-added services, in the context of public libraries in the Ciudad Autónoma de Buenos Aires and surrounding areas is studied. It presents a diagnosis of the current situation, aiming to determine whether these information units are prepared to respond to the needs of the community they serve within the information society. A survey with closed questions is applied based on the following categories: general information, resources, library automation, bibliographic control, networks integration, services, and financing sources. Research is made upon 73 responses provided by the libraries surveyed. The analysis verifies the lack of use of standards looking towards information exchange and the distributed processing of information, the abscence of information quality

  3. Phosphate taxis in Pseudomonas aeruginosa.

    OpenAIRE

    Kato, J.; Ito, A.; Nikata, T; Ohtake, H

    1992-01-01

    Pseudomonas aeruginosa was shown to be attracted to phosphate. The chemotactic response was induced by phosphate starvation. The specificity of chemoreceptors for phosphate was high so that no other tested phosphorus compounds elicited a chemotactic response as strong as that elicited by phosphate. Competition experiments showed that the chemoreceptors for phosphate appeared to be different from those for the common amino acids. Mutants constitutive for alkaline phosphatase showed the chemota...

  4. Taxi Drivers and Beauty Contests

    OpenAIRE

    Camerer, Colin F

    1997-01-01

    The trading floor of the New York Stock Exchange. The British economist John Maynard Keynes likened playing the market to voting for the prettiest face in a beauty contest; hence the second part of this article’s title.

  5. Taxi violence reflects larger problems

    Index Scriptorium Estoniae

    2009-01-01

    Läti Kaubandus-Tööstuskoja esimees Zanete Jaunzeme-Grende leiab, et Riias toimuvad taksosõjad peegeldavad olukorda kogu riigis. Samuti arvab ta, et valitsus peaks aitama ettevõtjatetel oma konkurentsivõimet tõsta

  6. Korean Air Excellence in Flight

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    @@ Korean Air with a fleet of 119 aircraft, is one of the world's top 20 airlines, and oper-ates almost 400 flights everyday to 90 cities in 33 countries. The airline has about 50 flights per week between the US and Asia from nine US gateways: New York, Los Angeles, Washington,Chicago, Dallas, San Francisco, Atlanta, Anchorage and Honolulu.The carrier is a founding member of SkyTeam, the global airline alliance partnering AeroMexico, Air France, Alitalia, CSA Czech Airlines, Continental Airlines, Delta Air Lines, KLM and Northwest Airlines to provide customers with extensive worldwide destina-tions, flights and services.

  7. CDC WONDER: Daily Air Temperatures and Heat Index

    Data.gov (United States)

    U.S. Department of Health & Human Services — The Daily Air Temperature and Heat Index data available on CDC WONDER are county-level daily average air temperatures and heat index measures spanning the years...

  8. Survey on eating behavior and dietary structure of taxi drivers in Beijing%北京市出租车司机膳食结构与饮食行为调查

    Institute of Scientific and Technical Information of China (English)

    段一凡; 潘丽莉; 赖建强; 闫玲; 张红梅; 荫士安; 葛可佑

    2012-01-01

    目的 了解北京市出租车司机膳食结构与饮食行为,为改善出租车司机的营养健康状况提供科学依据.方法 采用方便抽样的方法,在北京首都机场T3航站楼地下停车场候机排队的出租车中随机抽取1052人作为调查对象.采用问卷调查的方法收集司机的饮食行为、膳食结构等信息.结果 21.8%的出租车司机出车时3餐均在外就餐,郊区司机3餐进食时长低于城区司机.出租车司机不吃早餐、午餐、晚餐的比例分别是10.5%、4.4%和14.8%.出租车司机出车时午餐和晚餐的构成主要是“主食+荤菜+素菜”,较少司机选择加入水果,尤其是午餐.干净卫生和能吃饱是司机们选择就餐环境时考虑的主要因素,仅有少部分司机在选择午餐(20.4%)或晚餐(27.4%)时会考虑营养因素.结论 北京市出租车司机特别是郊区司机,目前仍存在饮食不规律、3餐分配及膳食结构不合理的现象.%Objective To investigate the eating behavior and dietary structure of taxi drivers in Beijing, and to provide scientific information for improving the nutrition and health of the taxi drivers. Methods Convenience sampling method was employed in the current study. A questionnaire survey was conducted among 1052 taxi drivers who were waiting for work at the parking of Terminal 3 capital airport. Results There are 21. 8% drivers had meals outside 3 times one day. This proportion was higher in the suburban drivers. Time for spending in eating in suburban drivers was shorter than urban drivers. The proportions of without breakfast lunch and dinner were 10. 5% , 4.4% and 14. 8% respectively. The drivers' dietary structure of lunch and dinner were "grain + meat + vegetables" during working outside, few drivers had some fruit, especially for the lunch. Drivers chose the lunch or dinner for clean and sanitary and for full, few for nutrition (20.4% or 27.4% ). Conclusion Eating disorders, unreasonable

  9. 北京市某出租汽车公司司机吸烟状况调查研究%Smoking Status of Professional Taxi Drivers in Beijing

    Institute of Scientific and Technical Information of China (English)

    孙越; 张立成; 方秋红; 马迎民

    2013-01-01

    Objective To investigate the smoking status of professional taxi drivers in Beijing.Methods A questionnaire survey was performed in 93 smoking taxi drivers in a taxi team ( 122 drivers ) and their pulmonary function tests were carried out.Results The smoking rate of the drivers was 76.2% ( 93/122 ).28% ( 26/93 ) smokers could relieve their cravings through oral cavity, the depth of smoke inhalation had linear correlation with smoking addiction ( P <0.001 ).With the increase of depth of smoke inhalation and annual number of cigarettes, the smokers who used to craving relief through oral carvity reduced gradually, those who used to deep inhalation for carving relief increased ( P < 0.05 ).Pulmonary function tests confirmed 4 patients with chronic obstructive pulmonary disease ( COPD ), all of whom were moderate or severe addictive smokers, inhalation depth 3 ~ 4 degrees and consumed over 400 cigarettes annually.Conclusion The drivers of this taxi team, having a high smoking rate, need smoking control education and management.Smokers who relieve carvings through oral - smoking are mostly mild addicts, those who need through lungs are moderate or severe addicts.COPD occurs in moderate or severe addicts who need to relieve their cravings through lungs.%目的 了解北京市某出租汽车公司司机的吸烟状况.方法 对北京市某出租车队122名司机采用统一问卷调查,了解其吸烟状况,并对吸烟司机的肺功能进行检测.结果 (1)该车队司机的吸烟率为76.2%(93/122).(2)28%(26/93)的出租车司机经口腔吸烟可缓解烟瘾,烟雾吸入深度与吸烟成瘾性之间存在线性相关关系(P<0.001).随着烟雾吸入深度及吸烟年支数的增加,经口腔吸烟可缓解烟瘾者逐渐减少,经肺部吸烟可缓解烟瘾者逐渐增加(P<0.05).(3)肺功能检查证实有4名慢性阻塞性肺疾病(COPD)患者,全部为吸烟400年支以上,中、重度成瘾,烟雾吸入深度达3~4级者.结论 (1)该出租车队司机

  10. 不同班次出租车司机高血压危险因素分析%Analysis of risk factors for hypertension among taxi drivers on different shifts

    Institute of Scientific and Technical Information of China (English)

    刘振华; 王欲晓; 闫凤凤; 魏晓珉; 于素芳

    2015-01-01

    Objective To investigate the incidence and risk factors for hypertension among taxi drivers working different shifts.Methods Using the cluster sampling method,415 day-shift and 304 night-shift taxi drivers in Jinan,China were selected and investigated.The influencing factors for hypertension were analyzed,Results The incidence of hypertension in all taxi drivers was 33.2%.The incidence of hypertension in nightshift drivers was significantly higher than that in day-shift drivers (37.8% vs 29.9%,P<0.05).According to multivariate analysis,the incidence of hypertension in day-shift drivers was closely related to body mass index (BMI),working years,working hours,sleep duration,rest days,diet quality,water intake,and smoking,while the incidence of hypertension in night-shift drivers was closely related to BMI,working years,working hours,part-time job,sleep duration,rest days,and drinking.Conclusion BMI,working years,and working hours are the common risk factors for hypertension in day-shift and night-shift drivers.Sleep duration and rest days are the common protective factors.The risk factors for hypertension in taxi drivers vary with different shifts.%目的 了解不同班次出租车司机高血压患病情况及探讨高血压的影响因素.方法 采用整群抽样方法,对济南市415名白班出租车司机和304名夜班出租车司机进行问卷调查,并进行影响因素分析.结果 被调查出租车司机高血压患病率为33.2%,其中白班司机高血压患病率为29.9%,夜班司机高血压患病率为37.8%,夜班司机高血压患病率高于白班司机,差异有统计学意义(P<0.05).多因素分析表明,白班司机高血压患病与体重指数(BMI)、工作年限、工作时长、睡眠时长、休息天数、饮食质量、饮水量和吸烟密切相关;夜班司机高血压患病与BMI、工作年限、工作时长、兼职、睡眠时长、休息天数和饮酒密切相关.结论 BMI、工作年限、工作时长等是

  11. 出租车司机冠心病危险因素研究%A Study on the Distribution of Risk Factors for Coronary Heart Disease among Taxi Drivers

    Institute of Scientific and Technical Information of China (English)

    任开涵; 张邢炜; 陈玉林; 杨威风; 徐瞾

    2013-01-01

    目的 探讨出租车司机冠心病危险因素分布情况.方法 在杭州市随机抽取302名驾龄5年及以上的出租车司机进行问卷调查,调查内容包括:年龄、性别、文化程度、每日运动量、高危因素、值班规律、家族史和既往史.一般健康体检内容包括:舒张压、收缩压、体重指数、总胆固醇、甘油三酯、低密度脂蛋白、高密度脂蛋白、空腹血糖、葡萄糖耐量餐后2h血糖、血尿酸、超敏C反应蛋白等.各种危险因素的患病率、检出率用百分率表示.结果 肥胖、缺乏运动、高胆固醇血症、高甘油三酯血症、高低密度脂蛋白血症、吸烟、高血压、糖尿病、高尿酸、超敏C反应蛋白升高和心理压力等冠心病危险因素在出租车司机人群中高发.12个月随访中发现出租车司机有急性心肌梗死和心绞痛等发生.结论 出租车司机中冠心病危险因素高发,需要进行防治.%Objective To probe into the distribution of risk factors for coronary heart disease among taxi drivers in Hangzhou.Methods 302 taxi driver with more than 5 years driving experience were randomly selected and investigated with general questionnaire survey which comprised age,gender,educational level,the daily physical activity,high risk factors,regularity on duty,family history and past medical history.General health questionnaire (GQH12) include diastolic blood pressure,systolic blood pressure,body mass index,total cholesterol,triglyceride,low-density lipoprotein cholesterol,high-density lipoprotein cholesterol,fasting blood glucose,blood glucose at 2 hours on OGTT,blood uric acid,highsensitivity creactive protein(hs-CRP).Prevalence and detection rate of various risk factors were expressed as a percentage.Results The risk factors of coronary heart disease including obesity,lack of exercise,hyper-cholesterolmia,hypertriglyceridemia,high hypolipoproteinemia,smoking,high blood pressure,diabetes,high uric acid levels

  12. 75 FR 1770 - Proposed Consent Decree, Clean Air Act Citizen Suit

    Science.gov (United States)

    2010-01-13

    ... Health and Environment, Air Pollution Division, to the Public Service of Colorado to operate the Hayden... Department of Public Health and Environment, Air Pollution Division, to the Public Service of Colorado...

  13. Association of monthly frequencies of diverse diseases in the calls to the public emergency service of the city of Buenos Aires during 1999-2004 with meteorological variables and seasons.

    Science.gov (United States)

    Alexander, P

    2013-01-01

    This work aims to study associations between monthly averages of meteorological variables and monthly frequencies of diverse diseases in the calls to the public ambulance emergency service of the city of Buenos Aires during the years 1999-2004. Throughout this time period no changes were made in the classification codes of the illnesses. Heart disease, arrhythmia, heart failure, cardiopulmonary arrest, angina pectoris, psychiatric diseases, stroke, transient ischemic attack, syncope and the total number of calls were analyzed against 11 weather variables and the four seasons. All illnesses exhibited some seasonal behavior, except cardiorespiratory arrest and angina pectoris. The largest frequencies of illnesses that exhibited some association with the meteorological variables used to occur in winter, except the psychiatric cases. Heart failure, stroke, psychiatric diseases and the total number of calls showed significant correlations with the 11 meteorological variables considered, and the largest indices (absolute values above 0.6) were found for the former two pathologies. On the other side, cardiorespiratory arrest and angina pectoris revealed no significant correlations and nearly null indices. Variables associated with temperature were the meteorological proxies with the largest correlations against diseases. Pressure and humidity mostly exhibited positive correlations, which is the opposite of variables related to temperature. Contrary to all other diseases, psychiatric pathologies showed a clear predominance of positive correlations. Finally, the association degree of the medical dataset with recurrent patterns was further evaluated through Fourier analysis, to assess the presence of statistically significant behavior. In the Northern Hemisphere high morbidity and mortality rates in December are usually assigned to diverse factors in relation to the holidays, but such an effect is not observed in the present analysis. There seems to be no clearly preferred

  14. Air surveillance

    Energy Technology Data Exchange (ETDEWEB)

    Patton, G.W.

    1995-06-01

    This section of the 1994 Hanford Site Environmental Report summarizes the air surveillance and monitoring programs currently in operation at that Hanford Site. Atmospheric releases of pollutants from Hanford to the surrounding region are a potential source of human exposure. For that reason, both radioactive and nonradioactive materials in air are monitored at a number of locations. The influence of Hanford emissions on local radionuclide concentrations was evaluated by comparing concentrations measured at distant locations within the region to concentrations measured at the Site perimeter. This section discusses sample collection, analytical methods, and the results of the Hanford air surveillance program. A complete listing of all analytical results summarized in this section is reported separately by Bisping (1995).

  15. Healthy Air Outdoors

    Science.gov (United States)

    ... lung.org > Our Initiatives > Healthy Air > Outdoor Healthy Air Outdoors The quality of the air we breathe ... families and can even shorten their lives. Outdoor Air Pollution and Health Outdoor air pollution continues to ...

  16. The Statement Airline Service Quality Development

    Institute of Scientific and Technical Information of China (English)

    周威

    2014-01-01

    As the recent emergence of the Low Cost Carriers (LLCs) in Air-line industry, service differentiation and customer satisfaction takes critical role in order to sharpen competitive edges to both Full Service Carriers (FSCs) and LLCs. The current research aims to explore the nature of service quality in airline and its relationship to customer satisfaction. Air service quality dimensions using factor analysis are classified as Ticketing and Boarding Processes, Customer Encounter Services, and Tangibles. Further, the regression analysis reveals the strength of relationships between each of service quality dimensions and customer satisfaction scales that the Ticketing and Boarding Process dimension has the strongest co-relations with customer satisfaction scales.

  17. NOAA NOS SOS, EXPERIMENTAL - Air Temperature

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA NOS SOS server is part of the IOOS DIF SOS Project. The stations in this dataset have air temperature data. *These services are for testing and evaluation...

  18. Comprehensive Smokefree Indoor Air PDF Slides

    Data.gov (United States)

    U.S. Department of Health & Human Services — Download the comprehensive smokefree indoor air slides. These slides are available in PDF and PowerPoint formats. The PowerPoint version can be found at:...

  19. Impact of aircraft plume dynamics on airport local air quality

    Science.gov (United States)

    Barrett, Steven R. H.; Britter, Rex E.; Waitz, Ian A.

    2013-08-01

    Air quality degradation in the locality of airports poses a public health hazard. The ability to quantitatively predict the air quality impacts of airport operations is of importance for assessing the air quality and public health impacts of airports today, of future developments, and for evaluating approaches for mitigating these impacts. However, studies such as the Project for the Sustainable Development of Heathrow have highlighted shortcomings in understanding of aircraft plume dispersion. Further, if national or international aviation environmental policies are to be assessed, a computationally efficient method of modeling aircraft plume dispersion is needed. To address these needs, we describe the formulation and validation of a three-dimensional integral plume model appropriate for modeling aircraft exhaust plumes at airports. We also develop a simplified concentration correction factor approach to efficiently account for dispersion processes particular to aircraft plumes. The model is used to explain monitoring station results in the London Heathrow area showing that pollutant concentrations are approximately constant over wind speeds of 3-12 m s-1, and is applied to reproduce empirically derived relationships between engine types and peak NOx concentrations at Heathrow. We calculated that not accounting for aircraft plume dynamics would result in a factor of 1.36-2.3 over-prediction of the mean NOx concentration (depending on location), consistent with empirical evidence of a factor of 1.7 over-prediction. Concentration correction factors are also calculated for aircraft takeoff, landing and taxi emissions, providing an efficient way to account for aircraft plume effects in atmospheric dispersion models.

  20. COMPOSITION CHANGES IN REFRIGERANT BLENDS FOR AUTOMOTIVE AIR CONDITIONING

    Science.gov (United States)

    Three refrigerant blends used to replace CFC-12 in automotive air conditioners were evaluated for composition changes due to typical servicing and leakage. When recommended service procedures were followed, changes in blend compositions were relatively small. Small changes in b...

  1. Service Gateway

    Institute of Scientific and Technical Information of China (English)

    WANG Guozhong; HOU Gang; HUANG Zeqing

    2003-01-01

    This article focuses on the service gateway which implements the Open Service gateway Initiative (OSGI), it manages voice, data, Internet, and multimedia communications to and from the home, office and other locations. This service gateway can also function as an application server for a range of high value services such as energy management and control, safety and security services, health care monitoring services, device control and maintenance, electronic commerce services and more.

  2. HEATING AND AIR CONDITIONING EDUCATIONAL PROGRAM.

    Science.gov (United States)

    Lennox Industries, Inc., Marshalltown, IA.

    INCREASED MOTIVATION, INCREASED INITIAL COMPREHENSION, AND INCREASED RETENTION ARE THE PRIME GOALS OF THE LENNOX HEATING AND AIR CONDITIONING EDUCATION PROGRAM. IT IS A COMPLETE PROGRAM WITH ALL THE TEACHING TOOLS REQUIRED TO PRODUCE A KNOWLEDGEABLE HEATING AND AIR-CONDITIONING INSTALLER OR SERVICE MAN. THIS INSTRUCTIONAL PROGRAM IS DESIGNED…

  3. Royal Danish Air Force. Air Operations Doctrine

    DEFF Research Database (Denmark)

    Nørby, Søren

    This brief examines the development of the first Danish Air Force Air Operations Doctrine, which was officially commissioned in October 1997 and remained in effect until 2010. The development of a Danish air power doctrine was heavily influenced by the work of Colonel John Warden (USAF), both...... through his book ”The Air Campaign” and his subsequent planning of the air campaign against Iraq in 1990-1991. Warden’s ideas came to Denmark and the Danish Air Force by way of Danish Air Force students attending the United States Air Force Air University in Alabama, USA. Back in Denmark, graduates from...... the Air University inspired a small number of passionate airmen, who then wrote the Danish Air Operations Doctrine. The process was supported by the Air Force Tactical Command, which found that the work dovetailed perfectly with the transformation process that the Danish Air Force was in the midst...

  4. 基于射频识别技术的出租车防伪管理系统的设计与实现%Design and implementation of taxi anti-counterfeiting management system based on radio frequency identification technique

    Institute of Scientific and Technical Information of China (English)

    杜成阳; 文光俊; 雷滨滨

    2012-01-01

    Taking comprehensive use of 2.45 GHz active Radio Frequency Identification (RFID) technique, information processing technology, wireless communication technology of General Packet Radio Service (GPRS), Global Positioning System (GPS) technique, mobile computing and network technology, this paper designed the software and hardware structure of the taxi anti-counterfeiting management system, developed the 2. 45 GHz active tags and information terminals with the functions of recognition, orientation navigation and mobile communication. Meanwhile, on the basis of the analysis of the main application models, it developed the upper application software of the system. By setting up the application system and testing, the results show that the system can work with ultra-low power, the peak current is only 2 mA; And the data transmit in realtime while delaying less than 4 seconds; Also the identifiable distance of the RFID terminal is about 110 m and it can read no less than 150 tags at the same time.%综合运用2.45 GHz有源射频识别(RFID)射频识别技术、信息处理技术、通用分组无线业务(GPRS)通信技术、全球定位系统(GPS)定位技术、移动计算与网络技术,设计了出租车防伪管理系统软硬件架构,开发出2.45 GHz有源标签和具有识别、定位导航、移动通信功能于一体的信息终端.同时,在分析系统应用模式的基础上,开发出系统上层应用软件.搭建的应用系统测试结果表明:该系统超低功耗工作,标签峰值电流仅2mA;数据实时性高,传输平均延时小于4s;RFID感知终端有效识读距离达到110m,并能同时识读不少于150个标签.

  5. Manual on indoor air quality

    International Nuclear Information System (INIS)

    This reference manual was prepared to assist electric utilities in helping homeowners, builders, and new home buyers to understand a broad range of issues related to indoor air quality. The manual is directed to technically knowledgeable persons employed by utility companies - the customer service or marketing representative, applications engineer, or technician - who may not have specific expertise in indoor air quality issues. In addition to providing monitoring and control techniques, the manual summarizes the link between pollutant concentrations, air exchange, and energy conservation and describes the characteristics and health effects of selected pollutants. Where technical information is too lengthy or complex for inclusion in this volume, reference sources are given. Information for this manual was gathered from technical studies, manufacturers' information, and other materials from professional societies, institutes, and associations. The aim has been to provide objective technical and descriptive information that can be used by utility personnel to make informed decisions about indoor air quality issues

  6. 出租车司机幽门螺旋杆菌感染情况调查分析%Investigation and Analysis of Taxi Drivers to H.Pylori Infection

    Institute of Scientific and Technical Information of China (English)

    刘爱胜; 陈荣贵; 文艳; 施俊柱

    2012-01-01

    目的 调查来医院体检中心健康体检的出租车司机幽门螺旋杆菌(Hp)的感染情况,为临床诊断与预防提供参考.方法 用14C-呼气试验和酶联免疫吸附实验(ELISA法)同时平行检测来体检中心健康体检的出租车司机394例及对照组为行政单位1 735例和教育工作者查体人员627例的Hp感染状况.结果 对照组Hp感染率为49%(1 154/2 362),其中行政单位查体人员Hp感染率为51%(885/1 735),教育工作者查体人员Hp感染率43%(269/627),两者比较差异有统计学意义(x2=12.7,P<0.05),出租车司机Hp感染率为71.6%(282/394),显著高于对照组,差异有统计学显著性意义(x=21.3,P<0.01).14c-呼气试验Hp检出率62.1%(1 467/2 362),ELISA法为58.7%(1 387/2 362),两方法Hp阳性检出率具有良好的相关性(r=0.934).结论 出租车司机Hp感染率明显高于一般查体人员,这可能与其职业压力、精神紧张、不规律的就餐和长期外面快餐以及长时间处于坐位姿势、工作时间长等原因有关,加强出租车行业人员Hp检测,宣传和预防减少Hp感染.%Objective Surveys to the taxi driver to Hospital Medical Center healthy HeLicobacter pylori (Hp) infection provide a reference for the clinical diagnosis and prevention. Methods Used 14C-breath test and enzyme-linked immunosorbent assay (ELISA) in parallel to detect 394 cases to the medical center healthy taxi drivers and the control group of 1 735 cases of administrative units and educators investigation staff of 627 cases of Hpinfection status. Results Hp infection of the control group was 49% (1 154/2 362). Among them, examination of the administrative unit staff Hp infection rate was 51% (885/1 735),examination of the educators 43% (269/627). Both comparing,there was statistically significant (χ2=12. 7, P <0. 05) ,taxi drivers Hp infection rate was 71. 6% (282/394) .significantly higher than, than control group (χ2=2L 3,P< 0. 01). 14C-breath test for Hp

  7. Air filtration and indoor air quality

    DEFF Research Database (Denmark)

    Bekö, Gabriel

    2006-01-01

    Demands for better indoor air quality are increasing, since we spend most of our time indoors and we are more and more aware of indoor air pollution. Field studies in different parts of the world have documented that high percentage of occupants in many offices and buildings find the indoor air...... decent ventilation and air cleaning/air filtration, high indoor air quality cannot be accomplished. The need for effective air filtration has increased with increasing evidence on the hazardous effects of fine particles. Moreover, the air contains gaseous pollutants, removal of which requires various air...... cleaning techniques. Supply air filter is one of the key components in the ventilation system. Studies have shown that used ventilation filters themselves can be a significant source of indoor air pollution with consequent impact on perceived air quality, sick building syndrome symptoms and performance...

  8. Services and Services Innovation

    OpenAIRE

    Gallouj, FaÏz; Windrum, Paul

    2009-01-01

    International audience We have witnessed a dramatic transformation of the US and western European economies in just twenty years. Built on manufacturing, today these are indubitably services-based economies. The transformation raises a number of important issues for economists, and for evolutionary economists in particular for they have long highlighted the importance of innovation and structural change in their treatment of industrial organisation, employment creation, welfare, economic g...

  9. Service Modularity

    DEFF Research Database (Denmark)

    Avlonitis, Viktor; Hsuan, Juliana

    2015-01-01

    The purpose of this research is to investigate the studies on service modularity with a goal of informing service science and advancing contemporary service systems research. Modularity, a general systems property, can add theoretical underpinnings to the conceptual development of service science...... in general and service systems in particular. Our research is guided by the following question: how can modularity theory inform service system design? We present a review of the modularity literature and associated concepts. We then introduce the contemporary service science and service system discourse...

  10. AirData

    Data.gov (United States)

    U.S. Environmental Protection Agency — The AirData site provides access to yearly summaries of United States air pollution data, taken from EPA's air pollution databases. AirData has information about...

  11. R9 Air Districts

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Region 9 Air Districts layer is a compilation of polygons representing the California Air Pollution Control and Air Quality Management Districts, Arizona Air...

  12. Hazardous Air Pollutants

    Science.gov (United States)

    ... Facebook Twitter Google+ Pinterest Contact Us Hazardous Air Pollutants Hazardous air pollutants are those known to cause ... protect against adverse environmental effects. About Hazardous Air Pollutants What are hazardous air pollutants? Health and Environmental ...

  13. California Air Basins

    Data.gov (United States)

    California Department of Resources — Air ResourcesCalifornia Air Resources BoardThe following datasets are from the California Air Resources Board: * arb_california_airbasins - California Air BasinsThe...

  14. 47 CFR 24.55 - Antenna structures; air navigation safety.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Antenna structures; air navigation safety. 24... SERVICES PERSONAL COMMUNICATIONS SERVICES Technical Standards § 24.55 Antenna structures; air navigation safety. Licensees that own their antenna structures must not allow these antenna structures to become...

  15. 47 CFR 27.56 - Antenna structures; air navigation safety.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Antenna structures; air navigation safety. 27... SERVICES MISCELLANEOUS WIRELESS COMMUNICATIONS SERVICES Technical Standards § 27.56 Antenna structures; air navigation safety. A licensee that owns its antenna structure(s) must not allow such antenna structure(s)...

  16. 14 CFR 302.720 - Service.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Service. 302.720 Section 302.720... Processing Contracts for the Carriage of Mail in Foreign Air Transportation § 302.720 Service. A copy of each... scheduled mail services between any pair of points between which mail is to be transported pursuant to...

  17. Pengaruh Kualitas Jasa Terhadap Kepuasan dan Loyalitas Pelanggan PT. Sriwijaya Air Distrik Medan

    OpenAIRE

    Sipayung, Sari Mariahma Nova

    2011-01-01

    Sari Mariahma Nova Sipayung, 2011, The Influence of Service Quality on Satisfaction And Loyalty of The Customers of PT. Sriwijaya Air District Medan, Prof. Dr. Paham Ginting, MS, Dr. Arlina Nurbaity, SE, MBA. Service business is a vital sector needed by community. Flight services is one of forms of air transportation services tightly competing with other kinds transportation services. The tight competition has resulted in fluctuating number passangers of flight service. Therefore, airline...

  18. 40 CFR 52.1778 - Significant deterioration of air quality.

    Science.gov (United States)

    2010-07-01

    ... quality. 52.1778 Section 52.1778 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... Significant deterioration of air quality. (a)-(b) (c) All applications and other information required pursuant... Air Quality, 1641 Mail Service Center, Raleigh, North Carolina 27699-1641 or local agencies,...

  19. Simulation Verification of Exponential Distribution of Service Time and Maximum Queuing Time for Air Defense Weapon Target%防空武器目标服务时间和等待时间指数分布的仿真验证

    Institute of Scientific and Technical Information of China (English)

    刘兵; 李相民

    2012-01-01

    The queuing theory is widely applied to air defense weapon, which is illustrated by an example, to analyze the penetration process and calculate the penetration probability. The paper firstly analyses the service time statistical characteristics of air defense weapon and the maximum queuing time statistical characteristics of the target, then provides simulation experiment data to verify the theoretical analyses.%排队理论广泛应用于防空武器系统突防过程的分析和突防概率的解算。首先对目标服务时间和最大等待时间分布特性进行了理论分析。应用计算机仿真方法,对上述两种随机变量的统计特性进行了分析验证,得出了比较合理的结论。

  20. Conflictividad por la operación del transporte público de pasajeros (modalidad taxi en conjuntos urbanos de Tecámac, Estado de México

    Directory of Open Access Journals (Sweden)

    Yasmín Hernández Romero

    2015-01-01

    Full Text Available El presente artículo expone resultados parciales de una investigación sobre los conflictos surgidos en el transporte públicode pasajeros, específicamente con organizaciones de la modalidad de taxi en el municipio de Tecámac, Estado de México,que buscan la operación en nuevos conjuntos urbanos, derivados de la reconfiguración urbano-espacial acaecida en estazona. El hecho resulta relevante, ya que no se trata de espacios habitables que surjan de manera “natural” o irregular, sinode espacios que son resultado de un proceso de planificación urbana. Dicha indagación se llevó a cabo mediante inves-tigación documental y hemerográfica, así como a través de entrevistas a actores involucrados. Dentro de los resultadosobtenidos se encontró, como conclusión parcial, que no existe una articulación adecuada entre la planificación urbanacon la planeación del servicio público de transporte; además de que, las proyecciones urbanas no toman en cuenta losconflictos que pueden resultar de los procesos de interacción social entre actores locales –viejos y nuevos–.

  1. Air movement and perceived air quality

    DEFF Research Database (Denmark)

    Melikov, Arsen Krikor; Kaczmarczyk, J.

    2012-01-01

    The impact of air movement on perceived air quality (PAQ) and sick building syndrome (SBS) symptoms was studied. In total, 124 human subjects participated in four series of experiments performed in climate chambers at different combinations of room air temperature (20, 23, 26 and 28 °C), relative...... humidity (30, 40 and 70%) and pollution level (low and high). Most of the experiments were performed with and without facially applied airflow at elevated velocity. The importance of the use of recirculated room air and clean, cool and dry outdoor air was studied. The exposures ranged from 60. min to 235....... min. Acceptability of PAQ and freshness of the air improved when air movement was applied. The elevated air movement diminished the negative impact of increased air temperature, relative humidity and pollution level on PAQ. The degree of improvement depended on the pollution level, the temperature...

  2. Service Innovations

    DEFF Research Database (Denmark)

    Sørensen, Lene Tolstrup; Nicolajsen, Hanne Westh

    2010-01-01

    This article discusses the challenges in relation to an ongoing project named converged advanced mobile media platform (CAMMP), where all the different stakeholders need to have a saying in the service development for the upcoming rich, mobile broadcasting services.......This article discusses the challenges in relation to an ongoing project named converged advanced mobile media platform (CAMMP), where all the different stakeholders need to have a saying in the service development for the upcoming rich, mobile broadcasting services....

  3. 76 FR 3076 - Availability of an Environmental Assessment for a Biological Control Agent for Air Potato

    Science.gov (United States)

    2011-01-19

    ... Control Agent for Air Potato AGENCY: Animal and Plant Health Inspection Service, USDA. ACTION: Notice of... Inspection Service has prepared an environmental assessment (EA) relative to the control of air potato... severity of air potato infestations. We are making the EA available to the public for review and...

  4. In situ monitoring of urban air in Córdoba, Argentina using the Tradescantia-micronucleus (Trad-MCN) bioassay

    Science.gov (United States)

    Carreras, H. A.; Pignata, M. L.; Saldiva, P. H. N.

    During the last decades, a significant deterioration of ambient air quality has been observed in Argentina. However, the availability of air pollution monitoring stations is still limited to only few cities. In this study, we investigated the genotoxicity of ambient levels of air pollution in Córdoba using the Tradescantia micronucleus assay. The experiment was performed from October, 2004 to April 2005. Pots with Tradescantia pallida were placed in three sites: Córdoba city center, characterized by important avenues with high traffic activity (cars, taxis, and public transport vehicles); the university campus, along a side road with heavy traffic of gasoline and diesel powered vehicles, buses and trucks; and a residential area, with no significant local sources of air pollution. Twenty young T. pallida inflorescences were collected from each sampling site in November, February and April. Micronuclei frequencies were determined in early tetrads of pollen mother cells and expressed as MCN/100 tetrads. Simultaneously, the environmental levels of total suspended particles (24 h mean) were determined for each site. A significant difference in micronuclei frequency was observed among sites ( p=0.036). Post-hoc analysis revealed that the residential area exhibited a lower micronuclei frequency than the university and city center areas. In conclusion, we found that the gradients of ambient air pollution of Córdoba are associated with changes in the spontaneous micronuclei frequency of Tradescantia pollen mother cells. These results indicate that in situ biomonitoring with higher plants may be useful for characterizing air pollution in areas without instrumental monitoring techniques, or for exploring the distribution of air contaminants at a microscale.

  5. Proyecto "Encuesta a los Servicios Alimentarios de Comedores Escolares Estatales" (PESCE: alcance de las metas nutricionales de las prestaciones alimentarias de los comedores escolares de Gran Buenos Aires, Argentina Proyect: "Survey of State School meal service" (PESCE: Scope of Food Supply Nutritional Goals in State School in Gran Buenos Aires, Argentina

    Directory of Open Access Journals (Sweden)

    Susana Buamden

    2010-03-01

    Full Text Available Objetivo: Evaluar el alcance de las metas nutricionales de las prestaciones alimentarias de los comedores escolares estatales de la región Gran Buenos Aires, Argentina, en 2007. Materiales y Métodos: Unidad de análisis: prestación alimentaria de todas las escuelas estatales de la región. Metas nutricionales: elaboradas por prestación, para energía, nutrientes y alimentos críticos por grupo etario (Grupo 1: 3 años; Grupo 2: 4-8 años; Grupo 3: 9-14 años. Encuesta ad-hoc: administrada por nutricionistas. Muestreo: aleatorio estratificado bietápico; total 301 escuelas, 299 relevadas. Análisis de datos: sistema informático ad-hoc. Resultados: Desayuno/Merienda: el aporte de leche fue menor a la meta para todos los grupos etarios. La ración brindada al Grupo 1 alcanzó la meta para todos los nutrientes excepto el Calcio. Para el Grupo 2 la ración brindada solo fue aceptable en zinc y hierro. El Grupo 3 no alcanzó ninguna meta. Almuerzo: para todos los grupos etarios, existió un aporte calórico por debajo de la meta y exceso proteico. Para el Grupo 1, la ración ofrecida superó las metas de hierro y zinc; y no alcanzó la de Vitamina A. Para el Grupo 2, los aportes de zinc y vitamina C superaron la meta; calcio, hierro y vitamina A presentaron aportes bajos. Para el Grupo 3, solo se alcanzó la meta en vitamina C. El aporte de carne solo superó las metas establecidas para el grupo 1. El aporte de fruta superó la meta para el grupo 1 y 2, y fue aceptable para el grupo 3. El Desayuno/Merienda para Grupo 2 aportó más kcal en las escuelas que no brindaban almuerzo. Conclusiones: El Desayuno/Merienda solo alcanzó las metas nutricionales (excepto calcio en el grupo de 3 años. En Almuerzo, se observó aporte calórico por debajo de la meta y exceso proteico para todos los grupos etarios.Objective: To assess the scope of food supply nutritional goals in state school in the area of Gran Buenos Aires, Argentina, in 2007. Materials and

  6. Heat and mass transfer in building services design

    CERN Document Server

    Moss, Keith

    1998-01-01

    Building design is increasingly geared towards low energy consumption. Understanding the fundamentals of heat transfer and the behaviour of air and water movements is more important than ever before. Heat and Mass Transfer in Building Services Design provides an essential underpinning knowledge for the technology subjects of space heating, water services, ventilation and air conditioning. This new text: *provides core understanding of heat transfer and fluid flow from a building services perspective *complements a range of courses in building services engineering *

  7. 山西省实施煤电超低排放的空气质量效益模拟%A numerical simulation of the air quality improvement when all service coal -fired power plants maintain a ultra-low emission standard in Shanxi

    Institute of Scientific and Technical Information of China (English)

    谢卧龙; 崔艳丽

    2015-01-01

    In Shanxi province,50% of the air pol utants comes from coal-fired power plants.Shanxi provincial government has been asking al the service coal-fired power plants meet a ultra-low emission standard before 2020 , it's predictable that this policy wil improve the ambient air quality.It developes emission inventorys before and after the service coal-fired power plants maintain the ultra-low emission standard, and numerical y simu-lates the improvement of the ambient air quality, with the Calpuff model.Results indicate that there is an signifi-cantly decline of the pol ution contribution of service coal-fired power plants after maintaining the ultra-low e-mission standard in 11 districted cities, but non significant in the whole provincial area.To evidently improve the ambient air quality in the whole provincial area,other types of emission sources need more focus.%山西省煤电行业的大气污染物排放占到全省排放总量的将近50%,山西省政府要求2020年前现役机组进行超低排放改造,鉴于煤电产业的排放特点,现役机组实施超低排放对于空气质量将会有较大的影响。研究建立现有燃煤电厂超低排放实施前和实施后的排放源清单,利用Calpuff 模型对现役机组执行超低排放空气质量改善效益进行模拟。结果显示,在原标准下现役燃煤发电机组对11个设区市市区的空气质量浓度贡献较大,山西省平均来看贡献相对较小,现役燃煤发电机组执行超低排放后,11个设区市市区现役燃煤发电机组的空气质量浓度贡献值有明显的下降,但山西省平均的下降值相对较小,“十三五”期间的大气污染防治需更多的考虑对其他源的控制。

  8. Indoor Air Quality

    Science.gov (United States)

    ... protect yourself and your family. Learn more Air Quality at Work Workers should breathe easy while on the job, but worksites with poor air quality put employees at risk. Healthy air is essential ...

  9. Air protection. Ochrana ovzdusia

    Energy Technology Data Exchange (ETDEWEB)

    Siska, F.

    1980-01-01

    This paper discusses problems of air pollution control, air pollution abatement and effects of air pollution. Air pollution caused by black and brown coal combustion, by fossil-fuel power plants and by coking plants is evaluated. Air pollution by dusts, sulfur oxides, nitrogen oxides, carbon monoxide, ammonia as well arsenic, barium, beryllium, boron, chromium, gallium, cobalt, manganese, copper, nickel, lead, plutonium, titanium and vanadium, which sometimes accompany ashes in coal, is analyzed. Methods of air pollution abatement such as fluidized bed combustion, coal preparation, desulfurization or dry coke quenching are described. Systems for air pollution control are presented: air filtration, cyclones, electrostatic precipitators. Systems of air pollution measurement and recording are evaluated. Propagation of air pollutants in the atmosphere as well as the factors which influence pollutant propagation are characterized. Problems associated with site selection for fossil-fuel power plants are also discussed. An analysis of economic aspects of air pollution abatement and air pollution control is made. (55 refs.)

  10. HEPA air filter (image)

    Science.gov (United States)

    ... pet dander and other irritating allergens from the air. Along with other methods to reduce allergens, such ... controlling the amount of allergens circulating in the air. HEPA filters can be found in most air ...

  11. Bad Air Day

    Science.gov (United States)

    ... link, please review our exit disclaimer . Subscribe Bad Air Day Air Quality and Your Health In many parts of the country, summer has the worst air quality of any season. When the forecast says ...

  12. 47 CFR 73.403 - Digital audio broadcasting service requirements.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false Digital audio broadcasting service requirements... SERVICES RADIO BROADCAST SERVICES Digital Audio Broadcasting § 73.403 Digital audio broadcasting service requirements. (a) Broadcast radio stations using IBOC must transmit at least one over-the-air digital...

  13. A STUDY OF APPLICATION GUI DESIGN ACCORDING TO KANO MODEL--FOCUSING ON CHINESE TAXI APPLICATION%基于KANO模型对应用软件的GUI设计研究--以打车软件设计为例

    Institute of Scientific and Technical Information of China (English)

    孙棋; 金世和

    2015-01-01

    由于目前全世界的交通拥堵,打车越来越难。因此惊现出了许多打车APP来改善这一现状。本研究通过中国和韩国最常用的打车APP的GUI设计调查,并运用KANO模型分析后得出打车软件所需要的属性来提高软件的质量。首先,选出上海和釜山最具有代表性的三个打车APP,对每一个APP的 GUI功能使用反馈进行调查。其次,使用KANO模型在四个步骤:“叫车”,“等待”,“上车”,“评价”对用户进行使用后满意度进行调查。最后,根据评估结果,对四个部分的GUI设计提出改善方案。%It’s harder and harder to take a cab since traffic jam al around the world nowadays. There suddenly appears a lot of Apps of taking a cab to improve this situation. This research compares the GUI Design of the popular Apps in China with Korea and use KANO model to analysis to improve the quality of those Apps. To begin, the most three representative taxi applications in Shanghai and Busan are selected and opinions on the GUI features are surveyed. Secondly, the level of satisfaction in regards to the fulfilment of users’ expectations is evaluated in each of the folowing four sections using the KANO Model:Cal, Wait, Take, and Evaluate. Finaly, through the results of this evaluation, improvement project of the GUI design is produced.

  14. Dosimetry Service

    CERN Multimedia

    2006-01-01

    Cern Staff and Users can now consult their dose records for an individual or an organizational unit with HRT. Please see more information on our web page: http://cern.ch/rp-dosimetry Dosimetry Service is open every morning from 8.30 - 12.00. Closed in the afternoons. We would like to remind you that dosimeters cannot be sent to customers by internal mail. Short-term dosimeters (VCT's) must always be returned to the Service after the use and must not be left on the racks in the experimental areas or in the secretariats. Dosimetry Service Tel. 7 2155 Dosimetry.service@cern.ch http://cern.ch/rp-dosimetry

  15. Management services

    International Nuclear Information System (INIS)

    The Management Services Section provides coordinated professional administrative services to the Fusion Energy Division (FED), allowing the work of technical professionals to be more fully concentrated in their areas of specialty. Services are provided in general administration, personnel, financial management, communications (including text and graphics generation), management information, library, safety, quality assurance, and nonprogrammatic engineering services. Highlights of the past year included adoption of the Procurement Module in the FED Management Information System (MIS) for use by the entire Laboratory, completion of the Personnel Module of the MIS, greatly increased personnel recruiting activity, and increased industrial subcontracting activity

  16. REACH. Air Conditioning Units.

    Science.gov (United States)

    Garrison, Joe; And Others

    As a part of the REACH (Refrigeration, Electro-Mechanical, Air-Conditioning, Heating) electromechanical cluster, this student manual contains individualized instructional units in the area of air conditioning. The instructional units focus on air conditioning fundamentals, window air conditioning, system and installation, troubleshooting and…

  17. CDBG Public Services Activity

    Data.gov (United States)

    Department of Housing and Urban Development — CDBG activity related to public services, including senior services, legal services, youth services, employment training, health services, homebuyer counseling,...

  18. Indoor Air Pollution (Environmental Health Student Portal)

    Science.gov (United States)

    ... Students to Environmental Health Information Menu Home Air Pollution Air Pollution Home Indoor Air Pollution Outdoor Air Pollution ... Pollution Indoor Air Pollution Print this Page Air Pollution Air Pollution Home Indoor Air Pollution Outdoor Air Pollution ...

  19. Registration Service

    CERN Multimedia

    GS Department

    2010-01-01

    Following a reorganization in Building 55, please note that the Registration Service is now organised as follows :  Ground floor: access cards (76903). 1st floor : registration of external firms’ personnel (76611 / 76622); car access stickers (76633); biometric registration (79710). Opening hours: 07-30 to 16-00 non-stop. GS-SEM Group General Infrastructure Services Department

  20. Therapy Services.

    Science.gov (United States)

    Austin Independent School District, TX.

    Reviewed are the goals and activities of the therapy services in the Austin Early Childhood Special Education Program. Specific sections detail activities for speech therapy (such as diagnostic assessment, habilitation, consultation, and reporting procedures), occupational therapy (including identification and assessment, and services to children,…

  1. Telephone Service

    CERN Multimedia

    2005-01-01

    As part of the upgrade of telephone services, the CERN exchange switches will be updated on Thursday 2 June between 7.00 p.m. and midnight. Telephone services may be affected and possibly even disrupted during this operation. 

  2. 75 FR 44214 - Notice of Meeting of the Agricultural Air Quality Task Force

    Science.gov (United States)

    2010-07-28

    ... Quality Task Force AGENCY: Natural Resources Conservation Service, United States Department of Agriculture. ACTION: Notice of meeting. SUMMARY: The Agricultural Air Quality Task Force (AAQTF) will meet to...

  3. 77 FR 1913 - Notice of Meeting of the Agricultural Air Quality Task Force

    Science.gov (United States)

    2012-01-12

    ... Quality Task Force AGENCY: Natural Resources Conservation Service, USDA. ACTION: Notice of Meeting. SUMMARY: The Department of Agriculture (USDA), Agricultural Air Quality Task Force (AAQTF) will meet...

  4. CDC STATE System Tobacco Legislation - Smokefree Indoor Air

    Data.gov (United States)

    U.S. Department of Health & Human Services — 1995-2016. Centers for Disease Control and Prevention (CDC). State Tobacco Activities Tracking and Evaluation (STATE) System. Legislation – Smokefree Indoor Air....

  5. Air Quality Measures on the National Environmental Health Tracking Network

    Data.gov (United States)

    U.S. Department of Health & Human Services — The Environmental Protection Agency (EPA) provides air pollution data about ozone and particulate matter (PM2.5) to CDC for the Tracking Network. The EPA maintains...

  6. Air flotation treatment of salmon processing waste water

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This paper discusses methods for the reduction of the pollution strength of salmon processing waste water. Past research has indicated the success of air pressure...

  7. NOS CO-OPS Meteorological Data, Air Temperature, 6-Minute

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset has Air Temperature data from NOAA NOS Center for Operational Oceanographic Products and Services (CO-OPS). WARNING: These preliminary data have not...

  8. EnviroAtlas - Clean Air Metrics for Conterminous United States

    Data.gov (United States)

    U.S. Environmental Protection Agency — This EnviroAtlas web service supports research and online mapping activities related to EnviroAtlas (https://www.epa.gov/enviroatlas). The Clean Air category in...

  9. 77 FR 39321 - Air Traffic Procedures Advisory Committee

    Science.gov (United States)

    2012-07-02

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF... Kyker, Environmental Specialist, Air Traffic Eastern Service Center, Operations Support Group, 1701...- point operations help enhance reliability and reduce delays by defining more precise terminal...

  10. CDC STATE System Tobacco Legislation - Smokefree Indoor Air Summary

    Data.gov (United States)

    U.S. Department of Health & Human Services — 1995-2016. Centers for Disease Control and Prevention (CDC). State Tobacco Activities Tracking and Evaluation (STATE) System. Legislation – Smokefree Indoor Air....

  11. 75 FR 45091 - Notice of Request for Nominations to the Agricultural Air Quality Task Force

    Science.gov (United States)

    2010-08-02

    ... Task Force AGENCY: Natural Resources Conservation Service, United States Department of Agriculture... the Agricultural Air Quality Task Force (AAQTF) and requests nominations for qualified persons to... Chief of the Natural Resources Conservation Service (NRCS) will establish a task force to...

  12. Connectable solar air collectors

    Energy Technology Data Exchange (ETDEWEB)

    Oestergaard Jensen, S.; Bosanac, M.

    2002-02-01

    The project has proved that it is possible to manufacture solar air collector panels, which in an easy way can be connected into large collector arrays with integrated ducting without loss of efficiency. The developed connectable solar air collectors are based on the use of matrix absorbers in the form of perforated metal sheets. Three interconnected solar air collectors of the above type - each with an transparent area of approx. 3 m{sup 2} - was tested and compared with parallel tests on two single solar air collectors also with a transparent area of approx. 3 m{sup 2} One of the single solar air collectors has an identical absorber as the connectable solar air collectors while the absorber of the other single solar air collector was a fibre cloth. The efficiency of the three solar air collectors proved to be almost identical in the investigated range of mass flow rates and temperature differences. The solar air collectors further proved to be very efficient - as efficient as the second most efficient solar air collectors tested in the IEA task 19 project Solar Air Systems. Some problems remain although to be solved: the pressure drop across especially the connectable solar air collectors is too high - mainly across the inlets of the solar air collectors. It should, however, be possible to considerably reduce the pressure losses with a more aerodynamic design of the inlet and outlet of the solar air collectors; The connectable solar air collectors are easy connectable but the air tightness of the connections in the present form is not good enough. As leakage leads to lower efficiencies focus should be put on making the connections more air tight without loosing the easiness in connecting the solar air collectors. As a spin off of the project a simple and easy way to determine the efficiency of solar, air collectors for pre-heating of fresh air has been validated. The simple method of determining the efficiency has with success been compared with an advance method

  13. IT Service

    Data.gov (United States)

    Department of Homeland Security — Means of delivering value to customers by facilitating outcomes customers want to achieve without the ownership of specific costs and risks. The term 'service' is...

  14. Serviced Living

    Institute of Scientific and Technical Information of China (English)

    LIU BO

    2006-01-01

    @@ As recently as ten years ago,the term serviced apartment made no sense to most people living in Beijing and residing in hotels was the only options for foreign visitors. But since then, serviced apartments have begun to appear in big cities all around China. In Beijing alone, it is estimated that there are more than 30,000service apartments spread across dozens of properties occupying a space of more than I million square meters. Concentrating in the Financial Street, the Central Business District and Zhongguancun, also known as China's Silicon Valley, the explosion in service apartments in the city continues to be fueled by the influx of overseas and domestic business people.

  15. Service modelling

    NARCIS (Netherlands)

    Steen, M.W.A.; Iacob, M.E.; Lankhorst, M.M.; Jonkers, H.; Zoet, M.; et al., et al.; Lankhorst, M.

    2012-01-01

    The development of enterprise services involves making design decisions at different levels, ranging from strategic to infrastructural choices, and concerning many different aspects, ranging from customer interaction to information registration concerns. In order to support an agile development proc

  16. Breathe the air!

    CERN Multimedia

    2003-01-01

    Feeling a bit cooped up in your office? Want to share your interest in science and technology with others but your computer's heard it all before and your colleagues won't even listen anymore? Then here's the answer - come and get some fresh air with the Education and Communication Group. The Visits Service and the Press Office offer you the opportunity to come into contact with CERN visitors. - Be a guide! In becoming a guide you get the opportunity to introduce the Laboratory to vast array of visitors of all nationalities and ages and communicate to them your passion for science and technology. You can get involved as a CERN guide on various levels - giving presentations and tours of the Laboratory, but also leading a «Drôle de Physique» workshop and giving tours of Microcosm. Guides receive training. If you're interested, take a look at the Guides Homepage where all the relevant information and formalities are explained: http://www.cern.ch/guides See also the article in the Bulletin n°25/2002. - Fa...

  17. 49 CFR 1510.7 - Air transportation advertisements and solicitations.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 9 2010-10-01 2010-10-01 false Air transportation advertisements and... PASSENGER CIVIL AVIATION SECURITY SERVICE FEES § 1510.7 Air transportation advertisements and solicitations... part as “September 11th Security Fee” in all its advertisements and solicitations for...

  18. CASE-CONTROL STUDY ON THE TAXI DRIVERS' RISK FACTORS FOR THE TRAFFIC ACCIDENTS%出租车驾驶员道路交通事故危险因素的病例对照研究

    Institute of Scientific and Technical Information of China (English)

    卢国良; 鲍鲸; 夏昭林

    2011-01-01

    [目的]探讨道路交通事故中出租车驾驶员的危险因素,为进一步开展交通事故的预防提供科学依据.[方法]采用病例对照研究方法,通过问卷调查方法收集事故组驾驶员和非事故组驾驶员的一般情况、家庭状况、生活习惯、交通安全意识和驾驶行为等情况.用SPSS11.5软件进行统计分析. [结果]单因素分析显示教育程度、驾龄、驾驶水平评价、驾驶员的一些安全意识和驾驶行为是交通事故的重要危险因素.[结论]应针对这些危险因素加强道路交通管理的力度,同时进一步加强对驾驶员的安全意识和安全驾驶行为的教育宣传,提高驾驶员的安全意识和行为,预防和减少交通事故的发生.%[Objective] To explore the taxi drivers' risk factors for the road traffic accidents, and provide scientific evidence for traffic accidents preventing and control. [Methods] Case-control study was used in research, and self designed questionnaire were used to collect data. The information in questionnaire included basic characteristics, family condition, living habit, drive behavior and traffic consciousness. Data were analyzed by using the software SPSS11.5. [Results] Single factor analysis result showed that the degree of study, driving years, self evaluate of road sense and some of drive behavior and traffic consciousness were significantly relative to traffic accidents. [Conclusion] According to the risk factors, road traffic management should be strengthened and drive safety education should be used to improve the drivers' behavior and traffic consciousness.

  19. A Portable Low-Cost High Density Sensor Network for Air Quality at London Heathrow Airport

    Science.gov (United States)

    Popoola, Olalekan; Mead, Iq; Bright, Vivien; Baron, Ronan; Saffell, John; Stewart, Gregor; Kaye, Paul; Jones, Roderic

    2013-04-01

    sensor nodes is being deployed in and around the airport perimeter. We present here some of the early results from the deployment showing some regional pollution episodes influenced by meteorology, as well as localised pollution effects related to aircraft taxiing, take-off and landing at the airport. We show how SNAQ can provide measurement data useful for validation of air quality models currently used for LHR, the generation of emission inventories for the airport as well as pollution source attribution within and around LHR.

  20. Air Quality Facilities

    Data.gov (United States)

    Iowa State University GIS Support and Research Facility — Facilities with operating permits for Title V of the Federal Clean Air Act, as well as facilities required to submit an air emissions inventory, and other...

  1. Airing It Out.

    Science.gov (United States)

    Fitzemeyer, Ted

    2000-01-01

    Discusses how proper maintenance can help schools eliminate sources contributing to poor air quality. Maintaining heating and air conditioning units, investigating bacterial breeding grounds, fixing leaking boilers, and adhering to ventilation codes and standards are discussed. (GR)

  2. AirCompare

    Data.gov (United States)

    U.S. Environmental Protection Agency — AirCompare contains air quality information that allows a user to compare conditions in different localities over time and compare conditions in the same location...

  3. Allegheny County Air Quality

    Data.gov (United States)

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — Air quality data from Allegheny County Health Department monitors throughout the county. Air quality monitored data must be verified by qualified individuals...

  4. Air Quality System (AQS)

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Air Quality System (AQS) database contains measurements of air pollutant concentrations from throughout the United States and its territories. The measurements...

  5. Indoor air quality

    DEFF Research Database (Denmark)

    Jensen, Trine Susanne; Recevska, Ieva

     The objective of the 35th specific agreement is to provide support to the EEA activities in Environment and Health (E&H) on the topic of indoor air quality. The specific objectives have been to provide an overview of indoor air related projects in EU and indoor air related policies as well...... as idenfiying "good practices" to reduce health impact of indoor air exposure and suggest areas for future improvements....

  6. Pure Air`s advanced flue gas desulfurization clean coal project

    Energy Technology Data Exchange (ETDEWEB)

    Brown, J.R. [Pure Air Bailly Station, Chesterton, IN (United States)

    1998-12-31

    Pure Air`s Advanced Flue Gas Desulfurization (AFGD) Clean Coal Project successfully completed four and a half years of operation in December 1996 at Northern Indiana Public Service Company`s (NIPSCO) Bailly Generating Station. This project received a $60 million grant from the DOE Clean Coal II program. Included in this was a three year DOE demonstration period. The facility was designed, built and is owned and operated by Pure Air of Allentown, Pennsylvania, through its project company, Pure Air on the Lake, Limited Partnership. The project met or exceeded all performance criteria. It has averaged 95.3% SO{sub 2} removal, 99.9% availability and produced high quality commercial gypsum during this four and a half year period. It demonstrated many advanced technology features including a single, large absorber module serving two boilers, a wastewater evaporation system, an air rotary sparger for oxidation, and a new technology for agglomerating gypsum.

  7. Air Pollution Training Programs.

    Science.gov (United States)

    Public Health Service (DHEW), Rockville, MD.

    This catalog lists the universities, both supported and not supported by the Division of Air Pollution, which offer graduate programs in the field of air pollution. The catalog briefly describes the programs and their entrance requirements, the requirements, qualifications and terms of special fellowships offered by the Division of Air Pollution.…

  8. Indoor Air Pollution

    Science.gov (United States)

    We usually think of air pollution as being outdoors, but the air in your house or office could also be polluted. Sources of indoor pollution ... is known as sick building syndrome. Usually indoor air quality problems only cause discomfort. Most people feel ...

  9. Indoor Air Quality Manual.

    Science.gov (United States)

    Baldwin Union Free School District, NY.

    This manual identifies ways to improve a school's indoor air quality (IAQ) and discusses practical actions that can be carried out by school staff in managing air quality. The manual includes discussions of the many sources contributing to school indoor air pollution and the preventive planning for each including renovation and repair work,…

  10. We Pollute the Air

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    1.Clean air is important to good health.If the aircontains impurities,they may be absorbed by ourbodies and make us ill.We need clean air,butunfortunately,air pollution is generally present,especially in cities. 2.Our cities have many factories,which we need tomake food products,clothing and many other things.

  11. Air Travel Health Tips

    Science.gov (United States)

    MENU Return to Web version Air Travel Health Tips Air Travel Health Tips How can I improve plane travel? Most people don't have any problems when ... and dosages of all of your medicines. The air in airplanes is dry, so drink nonalcoholic, decaffeinated ...

  12. 32 CFR 881.3 - Individual Service Review Board.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 6 2010-07-01 2010-07-01 false Individual Service Review Board. 881.3 Section... Individual Service Review Board. (a) The Commander, Headquarters Air Force Personnel Center (HQ AFPC/CC) establishes the Individual Service Review Board as necessary. (b) The Board consists of military members...

  13. Air Conditioning Does Reduce Air Pollution Indoors

    Science.gov (United States)

    Healy, Bud

    1970-01-01

    Report of the winter meeting of the American Society of Heating, Refrigerating and Air-Conditioning Engineers. Subjects covered are--(1) title subject, (2) predictions for the human habitat in 1994, (3) fans, and (4) fire safety in buildings. (JW)

  14. Advanced air distribution

    DEFF Research Database (Denmark)

    Melikov, Arsen Krikor

    2011-01-01

    The aim of total volume air distribution (TVAD) involves achieving uniform temperature and velocity in the occupied zone and environment designed for an average occupant. The supply of large amounts of clean and cool air are needed to maintain temperature and pollution concentration at acceptable....... Ventilation in hospitals is essential to decrease the risk of airborne cross-infection. At present, mixing air distribution at a minimum of 12 ach is used in infection wards. Advanced air distribution has the potential to aid in achieving healthy, comfortable and productive indoor environments at levels...... higher than what can be achieved today with the commonly used total volume air distribution principles....

  15. Service refinement

    Institute of Scientific and Technical Information of China (English)

    HE JiFeng

    2008-01-01

    This paper presents a refinement calculus for service components. We model the behaviour of individual service by a guarded design, which enables one to separate the responsibility of clients from the commitment made by the system, and to iden-tify a component by a set of failures and divergences. Protocols are introduced to coordinate the interactions between a component with the external environment. We adopt the notion of process refinement to formalize the substitutivity of components, and provide a complete proof method based on the notion of simulations.

  16. Released air during vapor and air cavitation

    Science.gov (United States)

    Jablonská, Jana; Kozubková, Milada

    2016-06-01

    Cavitation today is a very important problem that is solved by means of experimental and mathematical methods. The article deals with the generation of cavitation in convergent divergent nozzle of rectangular cross section. Measurement of pressure, flow rate, temperature, amount of dissolved air in the liquid and visualization of cavitation area using high-speed camera was performed for different flow rates. The measurement results were generalized by dimensionless analysis, which allows easy detection of cavitation in the nozzle. For numerical simulation the multiphase mathematical model of cavitation consisting of water and vapor was created. During verification the disagreement with the measurements for higher flow rates was proved, therefore the model was extended to multiphase mathematical model (water, vapor and air), due to release of dissolved air. For the mathematical modeling the multiphase turbulence RNG k-ɛ model for low Reynolds number flow with vapor and air cavitation was used. Subsequently the sizes of the cavitation area were verified. In article the inlet pressure and loss coefficient depending on the amount of air added to the mathematical model are evaluated. On the basis of the approach it may be create a methodology to estimate the amount of released air added at the inlet to the modeled area.

  17. Air Conditioner/Dehumidifier

    Science.gov (United States)

    1986-01-01

    An ordinary air conditioner in a very humid environment must overcool the room air, then reheat it. Mr. Dinh, a former STAC associate, devised a heat pipe based humidifier under a NASA Contract. The system used heat pipes to precool the air; the air conditioner's cooling coil removes heat and humidity, then the heat pipes restore the overcooled air to a comfortable temperature. The heat pipes use no energy, and typical savings are from 15-20%. The Dinh Company also manufactures a "Z" coil, a retrofit cooling coil which may be installed on an existing heater/air conditioner. It will also provide free hot water. The company has also developed a photovoltaic air conditioner and solar powered water pump.

  18. Innovation in Services: From Service Concepts to Service Experiences

    OpenAIRE

    Fynes, Brian; Lally, Anne Marie

    2008-01-01

    ABSTRACT Identifying the nature of service experiences is recognised As being of primary importance in the shaping of an enhanced competitive position for industry; however service managers often have difficulty articulating the true nature of their service concept. The definition of service concept is a fundamental part of the strategic advantage seeking Processes of service design, service development and service innovation. In response to the competitive Imperative for improved product/...

  19. Manual for THOR-AirPAS - air pollution assessment system

    DEFF Research Database (Denmark)

    Jensen, Steen Solvang; Ketzel, Matthias; Brandt, Jørgen;

    The report provides an outline of the THOR-AirPAS - air pollution assessment system and a brief manual for getting started with the air quality models and input data included in THOR-AirPAS.......The report provides an outline of the THOR-AirPAS - air pollution assessment system and a brief manual for getting started with the air quality models and input data included in THOR-AirPAS....

  20. PFInancial services

    Index Scriptorium Estoniae

    2002-01-01

    Briti ettevõttest International Financial Services, mis viib maailmas läbi kampaaniat PPP (Public Private Partnership) ja PFI (Private Finance Initiative) - erasektori ja avaliku sektori vahelise koostöö reklaamimiseks ja edendamiseks. Firma esindajad kohtusid Eesti ametnikega

  1. Refrigeration Servicing.

    Science.gov (United States)

    Hamilton, Donald L.; And Others

    This self-study course is designed to familiarize Marine enlisted personnel with the services required to be performed on refrigeration equipment. The course contains four study units. Each study unit begins with a general objective, which is a statement of what the student should learn from the unit. The study units are divided into numbered work…

  2. Dosimetry Service

    CERN Multimedia

    2005-01-01

    Please remember to read your dosimeter at least once a month. Regular read-outs are vital to ensure that your personal dose is periodically monitored. Dosimeters should be read even if you have not visited the controlled areas. Dosimetry Service - Tel. 72155 http://cern.ch/rp-dosimetry

  3. Dosimetry Service

    CERN Multimedia

    2005-01-01

    Please remember to read your dosimeter at least once a month. Regular read-outs are vital to ensure that your personal dose is periodically monitored. Dosimeters should be read even if you have not visited the controlled areas. Dosimetry Service Tel. 7 2155 http://cern.ch/rp-dosimetry

  4. Dosimetry Service

    CERN Multimedia

    2005-01-01

    Please remember to read your dosimeter at least once a month. Regular read-outs are vital to ensure that your personal dose is periodically monitored. Dosimeters should be read even if you have not visited the controlled areas. Dosimetry Service - Tel. 7 2155 http://cern.ch/rp-dosimetry

  5. Mail Service

    CERN Multimedia

    TS-FM Group

    2004-01-01

    Tuesday 19 October 2004 Please note that the distribution and collection of mail are likely to be disrupted on Tuesday, October 19, 2004, because of traffic and other restrictions enforced on that day in connection with CERN's fiftieth anniversary celebrations. The service may be completely interrupted in certain areas. Group TS-FM, Tel. 77551

  6. National Environmental Meteorological Services in China

    Directory of Open Access Journals (Sweden)

    Zhiming Kang

    2016-01-01

    Full Text Available The environmental meteorological services in China are concerned with atmospheric environmental quality, which is directly related to human activities and affects human health. In recent years, air pollution and other environmental problems have attracted nationwide attention in China, so the environmental meteorological services have been developed rapidly. To provide better meteorological monitoring and forecasting services, the Environmental Meteorological Centre of China Meteorological Administration was established in March 2014 by integrating the resources of various national service units. We review the development of China’s national environmental meteorological services and highlight their current status including major technological capabilities. We also explore future trends of the national environmental meteorological services by analysing deficiencies, gaps in supply and demand, and capabilities of the current environmental meteorological services.

  7. 42 CFR 84.140 - Air velocity and noise levels; hoods and helmets; minimum requirements.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 1 2010-10-01 2010-10-01 false Air velocity and noise levels; hoods and helmets; minimum requirements. 84.140 Section 84.140 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES OCCUPATIONAL SAFETY AND HEALTH RESEARCH AND RELATED ACTIVITIES APPROVAL OF RESPIRATORY PROTECTIVE DEVICES Supplied-Air...

  8. Efficacy Analysis on 50 Cases of Humeral Supracondylar Fracture of Straighten Radial Deviation Rotary Type Treated by Twisted Taxis%手法整复伸直桡偏旋转型肱骨髁上骨折50例疗效分析

    Institute of Scientific and Technical Information of China (English)

    符名赟; 杨延斌

    2013-01-01

    Objective:To investigate the efficacy of internal rotation twisted taxis and small splint fixation for children's humeral supracondylar frac-ture of straighten radial deviation rotary type. Methods: 50 cases of children were randomly divided into treatment group (27 cases) and control group (23 cases), the treatment group treated by internal rotation twisted taxis and small splint fixation, while the control group by traditional manual reduction, evaluated the efficacy after 6 months. Results:There were 19 cases of excellent, 4 cases of good, 3 cases of general and 1 case of bad in treatment group;9 cases of excellent, 6 cases of good, 5 cases of general and 3 case of bad in control group;the efficacy of treatment group was sig-nificantly better than that in control group (P<0.05). Conclusion:The treatment of internal rotation twisted taxis and small splint fixation has a good curative effect on children's humeral supracondylar fracture of straighten radial deviation rotary type.%目的:探讨内旋手法整复小夹板固定治疗儿童伸直桡偏旋转型肱骨髁上骨折的疗效。方法:50例伸直桡偏旋转型肱骨髁上骨折患儿随机分为治疗组27例和对照组23例,治疗组予内旋提按手法整复及小夹板固定;对照组按传统手法复位,6个月后评定疗效。结果:治疗组优19例,良4例,一般3例,差1例;对照组优9例,良6例,一般5例,差3例;治疗组明显优于对照组(P<0.05)。结论:内旋手法整复小夹板固定治疗治疗儿童伸直桡偏型肱骨髁上骨折效果良好。

  9. Automate The Tax Levy Process (Taxy)

    Data.gov (United States)

    Social Security Administration — This data store contains information to support the automation of Tax Levy payments. Data includes but is not limited to Title II benefits adjustment data, as well...

  10. Air filtration in HVAC systems

    CERN Document Server

    Ginestet, Alain; Tronville, Paolo; Hyttinen, Marko

    2010-01-01

    Air filtration Guidebook will help the designer and user to understand the background and criteria for air filtration, how to select air filters and avoid problems associated with hygienic and other conditions at operation of air filters. The selection of air filters is based on external conditions such as levels of existing pollutants, indoor air quality and energy efficiency requirements.

  11. Health Effects of Air Pollution

    Science.gov (United States)

    ... air pollution How to protect yourself from air pollution Chemicals Noise Quizzes Links to more information girlshealth glossary girlshealth.gov home http://www.girlshealth.gov/ Home The environment and your health Air Health effects of air pollution ... Health effects of air pollution Breathing air that ...

  12. 76 FR 27003 - Notice of Meeting of the Agricultural Air Quality Task Force

    Science.gov (United States)

    2011-05-10

    ... Natural Resources Conservation Service Notice of Meeting of the Agricultural Air Quality Task Force AGENCY...: Notice of meeting. SUMMARY: The Agricultural Air Quality Task Force (AAQTF) will meet to continue... Updates D. Federal Travel Regulations E. Air Quality Issues/Concerns from Previous Task Force...

  13. 78 FR 10127 - Request for Nominations to the Agricultural Air Quality Task Force

    Science.gov (United States)

    2013-02-13

    ... Air Quality Task Force AGENCY: Natural Resources Conservation Service, United States Department of Agriculture. ACTION: Notice of Request for Nominations to the Agricultural Air Quality Task Force. SUMMARY... term on the Agricultural Air Quality Task Force (AAQTF) which was established by the...

  14. Prediction of Air Conditioning Load Response for Providing Spinning Reserve - ORNL Report

    Energy Technology Data Exchange (ETDEWEB)

    Kueck, John D [ORNL; Kirby, Brendan J [ORNL; Ally, Moonis Raza [ORNL; Rice, C Keith [ORNL

    2009-02-01

    This report assesses the use of air conditioning load for providing spinning reserve and discusses the barriers and opportunities. Air conditioning load is well suited for this service because it often increases during heavy load periods and can be curtailed for short periods with little impact to the customer. The report also provides an appendix describing the ambient temperature effect on air conditioning load.

  15. 75 FR 66125 - Federal Land Managers' Air Quality Related Values Work Group (FLAG)

    Science.gov (United States)

    2010-10-27

    ... National Park Service Federal Land Managers' Air Quality Related Values Work Group (FLAG) AGENCY: National...' Air Quality Related Values Work Group (FLAG) was formed (1) to develop a more consistent and objective... constituencies (e.g., State air regulatory agencies, concerned citizens, environmental groups,...

  16. Air quality and future energy system planning

    Science.gov (United States)

    Sobral Mourao, Zenaida; Konadu, Dennis; Lupton, Rick

    2016-04-01

    Ambient air pollution has been linked to an increasing number of premature deaths throughout the world. Projected increases in demand for food, energy resources and manufactured products will likely contribute to exacerbate air pollution with an increasing impact on human health, agricultural productivity and climate change. Current events such as tampering emissions tests by VW car manufacturers, failure to comply with EU Air Quality directives and WHO guidelines by many EU countries, the problem of smog in Chinese cities and new industrial emissions regulations represent unique challenges but also opportunities for regulators, local authorities and industry. However current models and practices of energy and resource use do not consider ambient air impacts as an integral part of the planing process. Furthermore the analysis of drivers, sources and impacts of air pollution is often fragmented, difficult to understand and lacks effective visualization tools that bring all of these components together. This work aims to develop a model that links impacts of air quality on human health and ecosystems to current and future developments in the energy system, industrial and agricultural activity and patterns of land use. The model will be added to the ForeseerTM tool, which is an integrated resource analysis platform that has been developed at the University of Cambridge initially with funding from BP and more recently through the EPSRC funded Whole Systems Energy Modeling (WholeSEM) project. The basis of the tool is a set of linked physical models for energy, water and land, including the technologies that are used to transform these resources into final services such as housing, food, transport and household goods. The new air quality model will explore different feedback effects between energy, land and atmospheric systems with the overarching goal of supporting better communication about the drivers of air quality and to incorporate concerns about air quality into

  17. 40 CFR 265.1061 - Alternative standards for valves in gas/vapor service or in light liquid service: percentage of...

    Science.gov (United States)

    2010-07-01

    ... gas/vapor service or in light liquid service: percentage of valves allowed to leak. 265.1061 Section... FACILITIES Air Emission Standards for Equipment Leaks § 265.1061 Alternative standards for valves in gas/vapor service or in light liquid service: percentage of valves allowed to leak. (a) An owner or...

  18. 40 CFR 265.1062 - Alternative standards for valves in gas/vapor service or in light liquid service: skip period...

    Science.gov (United States)

    2010-07-01

    ... gas/vapor service or in light liquid service: skip period leak detection and repair. 265.1062 Section... FACILITIES Air Emission Standards for Equipment Leaks § 265.1062 Alternative standards for valves in gas/vapor service or in light liquid service: skip period leak detection and repair. (a) An owner...

  19. Using Service Scenarios to Model Business Services

    DEFF Research Database (Denmark)

    Bækgaard, Lars

    The purpose of the paper is to present and evaluate the notion of service scenarios. A service is work done by a service executor in interaction with a service consumer. A service scenario is a model of a service system and the roles that are played by the actors participating and interacting...... during the execution of a service. The model represents the roles and the interactions between the participants. Service scenarios can be used to model specific services and roles played by human beings and IT systems in the execution of services. The use of service scenarios is demonstrated by means...... of a case study in a public library. The case study indicates that service systems should be understood as socio-technical systems in which service executors and service consumers co-create value in mutual interaction with each other and with a set of shared resources....

  20. Dosimetry Service

    CERN Multimedia

    Dosimetry Service

    2005-01-01

    Please remember to read your dosimeter at least once every month. A regular read-out is indispensable to ensure periodic monitoring of your personal dose. You must read your dosimeter even if you have not visited the controlled areas. Film badges are no longer valid at CERN and holders of film badges are no longer allowed to enter the controlled radiation areas or work with a source. Dosimetry Service Tel. 72155 http://cern.ch/rp-dosimetry

  1. The effect of different artificial substrates on the inhabitation taxis of sea cucumber Apostichopus japonicus%不同类型附着基对刺参栖息趋向性的影响分析

    Institute of Scientific and Technical Information of China (English)

    管敏; 王印庚; 陈贵平; 廖梅杰; 潘鲁青; 薛太山

    2012-01-01

    By calculating and analyzing the average gathered number of unit volume (AG-NUV) and the mean attractive rate (MAR) on ten types of artificial substrates and 8 distributional areas, the inhabitation taxis and selection of Apostichopus japonicus was estimated. The results showed that the attractive effect of 10 substrates was in the following descending order: big poly-arris tile, stone, three-hole brick, small poly-arris tile, U-shaped tile, eddy abnormity tile, triangle tile, cage substrate, sunshade net and bamboo substrate. There was significant difference between the big poly-arris tile and eddy abnormity tile, triangle tile, cage substrate, sunshade net and bamboo substrate. It also showed that the MAR of pool edge angle (21. 02%) was higher than that of pool wall (8. 23%) and pool bottom surface (15. 68%) , while the MAR underneath and inside of substrate was respectively higher than that of upside and surface. In addition, the experimental test approved the following: (1) The big poly-arris tile had the best performance in the attractive effect; (2) The sea cucumber had an habit that they tended to stay on different location at different time; (3) Stone, cage substrate and sunshade net were not suitable for sea cucumber culture. The attractive effect of several substrates was compared and analyzed in this study.%利用单位体积平均聚集数量(Average Gathered Number of Unit Volume,AGNUV)和平均聚集率(Mean Attractive Rate,MAR)统计分析了刺参对10种附着基(石块、三角瓦、U形瓦、遮阳网、网笼附着基、竹制附着基、三孔砖、涡流式异形瓦、大多棱瓦、小多棱瓦)和8种栖息分布区域(池壁面、池棱角、池底面、附着基上、附着基下、附着基棱角凹槽处、附着基内、附着基外)的选择趋向差异性.结果表明,不同类型附着基诱集刺参的效果为:大多棱瓦>石块>三孔砖>小多棱瓦>U形瓦>涡流式异形瓦>三角瓦>网笼附着基>遮阳网

  2. Indonesia's Clean Air Program

    OpenAIRE

    Budy P. Resosudarmo

    2002-01-01

    Unprecedented industrial development in Indonesia during the last two decades, accompanied by a growing population, has increased the amount of environmental damage. One of the most important environmental problems is that the level of air pollution in several large cities has become alarming, particularly in the last few years. This high pollution level has stimulated the government to develop a national clean air program designed to control the quantity of pollutants in the air. However, th...

  3. Air Quality in Lithuania

    Energy Technology Data Exchange (ETDEWEB)

    Pietilae, P. [Tampere University of Technology / ECAT-Lithuania (Lithuania); Kliucininkas, L. [Department for Environmental Engineering, Kaunas University of Technology (Lithuania)

    2000-07-01

    Sustainable monitoring of the ambient air is the major preventive measure of ensuring its proper quality. Only with a monitoring procedure going-on a continuous basis it is possible to make an objective evaluation of air pollution trends, of the efficiency of air protection measures and, partially, to a certain extent of the impact the pollution exerts on a human health. The information stemming from the monitoring procedure must be reliable, sustainable and efficient. (orig.)

  4. Olefin metathesis in air.

    Science.gov (United States)

    Piola, Lorenzo; Nahra, Fady; Nolan, Steven P

    2015-01-01

    Since the discovery and now widespread use of olefin metathesis, the evolution of metathesis catalysts towards air stability has become an area of significant interest. In this fascinating area of study, beginning with early systems making use of high oxidation state early transition metal centers that required strict exclusion of water and air, advances have been made to render catalysts more stable and yet more functional group tolerant. This review summarizes the major developments concerning catalytic systems directed towards water and air tolerance.

  5. Bad traffic, bad air

    OpenAIRE

    Duca, Edward

    2012-01-01

    Air pollution is one of Malta’s greatest concerns. Transportation is the principal source with over 300,000 vehicles belching out smoke, which damages our environment and health. Emissions from vehicles need to be monitored and controlled, and the information used to improve the current system and ensure an acceptable air quality. By using the pollution data set, Nicolette Formosa (supervised by Dr Kenneth Scerri) mapped the air pollution levels and major sources around Malta. http://www....

  6. 走近Air

    Institute of Scientific and Technical Information of China (English)

    马华

    2007-01-01

    @@ 大家对air这个单词并不陌生,它通常用作名词,表示"空气".例如: 1.Better let in fresh air. 最好让新鲜空气进来. 2.The air smells of paint. 空气里散发着油漆味. 3.The air was heavy with perfume of the flowers. 空气里弥漫着花朵的芳香.

  7. Integrating Naval Surface Fire support into an improved Joint Close Air Support architecture

    OpenAIRE

    Lindahl, Amy E.

    2006-01-01

    Control (C2) process. Situations often occur in which forward air controllers (FACs) from one service integrate into the structure of another service, yet still report to their own leadership. Many non-interoperable communications systems are used, further adding to the confusion. This thesis analyzes the effectiveness of current Joint Close Air Support doctrine in providing the guidelines necessary for the warfighter at all echelons to plan, prepare and execute integrated close air support m...

  8. Applications Using AIRS Data

    Science.gov (United States)

    Ray, S. E.; Pagano, T. S.; Fetzer, E. J.; Lambrigtsen, B.; Olsen, E. T.; Teixeira, J.; Licata, S. J.; Hall, J. R.; Thompson, C. K.

    2015-12-01

    The Atmospheric Infrared Sounder (AIRS) on NASA's Aqua spacecraft has been returning daily global observations of Earth's atmospheric constituents and properties since 2002. With a 12-year data record and daily, global observations in near real-time, AIRS data can play a role in applications that fall under many of the NASA Applied Sciences focus areas. For vector-borne disease, research is underway using AIRS near surface retrievals to assess outbreak risk, mosquito incubation periods and epidemic potential for dengue fever, malaria, and West Nile virus. For drought applications, AIRS temperature and humidity data are being used in the development of new drought indicators and improvement in the understanding of drought development. For volcanic hazards, new algorithms using AIRS data are in development to improve the reporting of sulfur dioxide concentration, the burden and height of volcanic ash and dust, all of which pose a safety threat to aircraft. In addition, anomaly maps of many of AIRS standard products are being produced to help highlight "hot spots" and illustrate trends. To distribute it's applications imagery, AIRS is leveraging existing NASA data frameworks and organizations to facilitate archiving, distribution and participation in the BEDI. This poster will communicate the status of the applications effort for the AIRS Project and provide examples of new maps designed to best communicate the AIRS data.

  9. Development of service equipment

    Directory of Open Access Journals (Sweden)

    Sant Singh

    1952-07-01

    Full Text Available Wars have been fought throughout the ages; at no period, however. In history has there been such phenomenal progress in the development of new equipment as during the present half century needless to add, on account of the unprecedented pace of scientific and technological advancement; for instance, until the beginning of the present century, the mobility and fire-power of the defence forces were very limited and they had no mechanization. tanks, mortars, shaped charges, atomic and guided missiles,  chemical, microbiological and psychological warfare, wireless communications, electronic devices, radar, magnetic, acoustic and oyster mines, to mention only a few  and above all they lacked our colleagues of the third Service, namely, the Air Force.

  10. Uncovering ecosystem service bundles through social preferences.

    Directory of Open Access Journals (Sweden)

    Berta Martín-López

    Full Text Available Ecosystem service assessments have increasingly been used to support environmental management policies, mainly based on biophysical and economic indicators. However, few studies have coped with the social-cultural dimension of ecosystem services, despite being considered a research priority. We examined how ecosystem service bundles and trade-offs emerge from diverging social preferences toward ecosystem services delivered by various types of ecosystems in Spain. We conducted 3,379 direct face-to-face questionnaires in eight different case study sites from 2007 to 2011. Overall, 90.5% of the sampled population recognized the ecosystem's capacity to deliver services. Formal studies, environmental behavior, and gender variables influenced the probability of people recognizing the ecosystem's capacity to provide services. The ecosystem services most frequently perceived by people were regulating services; of those, air purification held the greatest importance. However, statistical analysis showed that socio-cultural factors and the conservation management strategy of ecosystems (i.e., National Park, Natural Park, or a non-protected area have an effect on social preferences toward ecosystem services. Ecosystem service trade-offs and bundles were identified by analyzing social preferences through multivariate analysis (redundancy analysis and hierarchical cluster analysis. We found a clear trade-off among provisioning services (and recreational hunting versus regulating services and almost all cultural services. We identified three ecosystem service bundles associated with the conservation management strategy and the rural-urban gradient. We conclude that socio-cultural preferences toward ecosystem services can serve as a tool to identify relevant services for people, the factors underlying these social preferences, and emerging ecosystem service bundles and trade-offs.

  11. Measuring customer expectations of service quality: case airline industry

    OpenAIRE

    Tolpa, Ekaterina

    2012-01-01

    Objectives of the Study The first theoretical objective of this study is to discuss the concept of service quality and find out the different approaches to measure service quality. The second objective is to define a process model for measuring service quality in air transportation based on literature review. Empirical objectives are to test the process model on selected customer group. Then, the results are used to investigate what services customers consider as the cornerstones of th...

  12. Analysis of Five-year Trend of Prevalence of Hypertension among Female Taxi Drivers in Wuhan Area%武汉地区女性出租车驾驶员五年高血压患病率变化趋势分析

    Institute of Scientific and Technical Information of China (English)

    刘建萍; 徐沙; 陈虹颖; 刘恒友; 柴婷婷; 邓晓丹

    2011-01-01

    目的 了解武汉地区女性出租车驾驶员高血压患病率五年变化趋势,为对这类特殊人群做好健康管理提供依据.方法采取整群抽样的方法,对武汉地区1 226名女性出租车驾驶员进行连续五年(2006-2010年)的健康体检和人口学调查,比较五年来高血压患病率的变化趋势.结果高血压患病率有逐年增高的趋势( P <0.05);不同年龄组间高血压病患病率不同,差异有统计学意义( P <0.05);随着年龄的增加,高血压病患病率逐渐增高,差异有统计学意义( P <0.01),每增10岁平均增长速度为227.38%.不同年龄组女性出租车驾驶员的体质指数、腰围、收缩压、舒张压及血清总胆固醇水平比较,差异均有统计学意义( P <0.05).缺乏锻炼是影响驾驶员血压水平的危险因素( P <0.05).结论 武汉地区女性出租车驾驶员高血压患病率为18.27%,2006-2010年高血压患病率有逐年增高的趋势,存在明显的增龄效应,应大力开展高血压防治知识的宣传教育,在强调高血压危险因素的同时,应当引导其循序渐进地建立健康的生活方式.%Objective To study five - year trend of prevalence of hypertension among female taxi drivers in Wuhan, and to provide basis of health management for this special populations as well.Methods Medical and demographic health survey was performed by cluster sampling method among 1226 female taxi drivers in Wuhan for five consecutive years ( 2006 - 2010 ).The prevalence of hypertension trends in five years was then compared.Results Prevalence of hypertension had a increasing trend year by year ( P < 0.05 ); different age groups had different rates of hypertension, the difference was statistically significant ( P < 0.05 ); With the increase of age, the prevalence of hypertension increased accordingly, the difference was statistically significant ( P < 0.01 ).The average growth rate was 227.38 percent for every additional 10 years

  13. Eight Year Climatologies from Observational (AIRS) and Model (MERRA) Data

    Science.gov (United States)

    Hearty, Thomas; Savtchenko, Andrey; Won, Young-In; Theobalk, Mike; Vollmer, Bruce; Manning, Evan; Smith, Peter; Ostrenga, Dana; Leptoukh, Greg

    2010-01-01

    We examine climatologies derived from eight years of temperature, water vapor, cloud, and trace gas observations made by the Atmospheric Infrared Sounder (AIRS) instrument flying on the Aqua satellite and compare them to similar climatologies constructed with data from a global assimilation model, the Modern Era Retrospective-Analysis for Research and Applications (MERRA). We use the AIRS climatologies to examine anomalies and trends in the AIRS data record. Since sampling can be an issue for infrared satellites in low earth orbit, we also use the MERRA data to examine the AIRS sampling biases. By sampling the MERRA data at the AIRS space-time locations both with and without the AIRS quality control we estimate the sampling bias of the AIRS climatology and the atmospheric conditions where AIRS has a lower sampling rate. While the AIRS temperature and water vapor sampling biases are small at low latitudes, they can be more than a few degrees in temperature or 10 percent in water vapor at higher latitudes. The largest sampling biases are over desert. The AIRS and MERRA data are available from the Goddard Earth Sciences Data and Information Services Center (GES DISC). The AIRS climatologies we used are available for analysis with the GIOVANNI data exploration tool. (see, http://disc.gsfc.nasa.gov).

  14. Service registry design: an information service approach

    NARCIS (Netherlands)

    Ferreira Pires, Luis; Oostrum, van Arjen; Wijnhoven, Fons; Wang, J.

    2010-01-01

    A service registry is a Service-Oriented Architecture (SOA) component that keeps a ‘catalogue’ of available services. It stores service specifications so that these specifications can be found by potential users. Discussions on the design of service registries currently focus on technical issues, wh

  15. Restoran Buenos Aires = Restaurant Buenos Aires

    Index Scriptorium Estoniae

    2008-01-01

    Restorani Buenos Aires (Narva mnt. 5, Tallinn) sisekujundusest. Sisearhitektid: Janno Roos ja Andres Labi (Ruumilabor OÜ). Laudu eraldavad 400 vardasse aetud puukuuli. Sisearhitektidest, nende tähtsamad tööd. I-III korruse plaan, 12 värv. vaadet, fotod sisearhitektidest

  16. Public Perception of Urban Air Pollution: An Exploratory Study

    International Nuclear Information System (INIS)

    This report presents the results of a qualitative study using focus groups aimed at understanding the beliefs and attitudes of the population towards air pollution, its levels, causes, health impacts and possible mitigation and protection actions. The study sample consisted of members of the general population, between 18 and 65 years living in Barcelona. The analysis of the group discussion indicates that there is little awareness among participants about air pollution risks. The causes of air pollution are relatively known but there is little knowledge about pollution levels and types of pollutants. We found a low level of perceived personal risk associated to air pollution that coexists with a general awareness of the health impacts of air pollution, a low level of concern about the problem and a low level of personal involvement in mitigation and self protection measures. Participants reported no use of existing information services about air pollution. (Author)

  17. Services Marketing

    OpenAIRE

    Jägerová, Tereza

    2012-01-01

    The aim of this work is to verify the category of stars and their informational value for customers at the Four Season Hotel in Pankrác. The theoretical part describes a comparison with the literature, solutions marketing with a focus on the specifics of marketing mix and marketing services. It is then investigated using the marketing mix in practice in the above subjects in the form of structured observation in the natural environment of the hotel without the knowledge of the monitored perso...

  18. Over the air test

    DEFF Research Database (Denmark)

    2015-01-01

    [1] This invention relates to over-the-air testing of a device in an anechoic chamber. In particular, the invention is suitable for simulating both uplink and downlink over-the-air communication with a device under test even when the anechoic chamber has different numbers of uplink and downlink...

  19. Energy and air quality

    International Nuclear Information System (INIS)

    This is one of a series of handbooks designed to provide nontechnical readers with a general understanding of the interaction between energy development and environmental media and to provide a rudimentary data base from which estimates of potential future impacts can be made. This handbook describes the air quality impacts of energy development and summarizes the major federal legislation which regulates the potential air quality impacts of energy facilities and can thus influence the locations and timing of energy development. In addition, this report describes and presents the data which can be used as the basis for measurement, and in some cases, prediction of the potential conflicts between energy development and achieving and maintaining clean air. Energy utilization is the largest emission source of man-made air pollutants. Choices in energy resource development and utilization generate varying emissions or discharges into the atmosphere, the emissions are affected by the assimilative character of the atmosphere, and the resultant air pollutant concentrations have biological and aesthetic effects. This handbook describes the interrelationships of energy-related air emissions under various methods of pollution control, the assimilative character of the air medium, and the effects of air pollution. The media book is divided into three major sections: topics of concern relating to the media and energy development, descriptions of how to use available data to quantify and examine energy/environmental impacts, and the data

  20. Air Pollution, Teachers' Edition.

    Science.gov (United States)

    Lavaroni, Charles W.; O'Donnell, Patrick A.

    One of three in a series about pollution, this teacher's guide for a unit on air pollution is designed for use in junior high school grades. It offers suggestions for extending the information and activities contained in the textual material for students. Chapter 1 discusses the problem of air pollution and involves students in processes of…

  1. Air Pollution and Industry.

    Science.gov (United States)

    Ross, R. D., Ed.

    This book is an authoritative reference and practical guide designed to help the plant engineer identify and solve industrial air pollution problems in order to be able to meet current air pollution regulations. Prepared under the editorial supervision of an experienced chemical engineer, with each chapter contributed by an expert in his field,…

  2. AIR RADIOACTIVITY MONITOR

    Science.gov (United States)

    Bradshaw, R.L.; Thomas, J.W.

    1961-04-11

    The monitor is designed to minimize undesirable background buildup. It consists of an elongated column containing peripheral electrodes in a central portion of the column, and conduits directing an axial flow of radioactively contaminated air through the center of the column and pure air through the annular portion of the column about the electrodes. (AEC)

  3. Air-Conditioning Mechanic.

    Science.gov (United States)

    Marine Corps Inst., Washington, DC.

    This student guide, one of a series of correspondence training courses designed to improve the job performance of members of the Marine Corps, deals with the skills needed by air conditioning mechanics. Addressed in the four chapters, or lessons, of the manual are the following topics: principles of air conditioning, refrigeration components as…

  4. Air pollution and air cleaning equipment in buildings

    OpenAIRE

    Evdokimova, Ekaterina

    2011-01-01

    The subject of this thesis work is air pollution and air cleaners in building. Clean air has big significance for human health because different pollutions can cause allergy and disease. The quality of indoor air affects health and effective working. The aim of this thesis is to present methods and devices for cleaning the air.

  5. Barriers to Accessing Emergency Medical Services in Accra, Ghana: Development of a Survey Instrument and Initial Application in Ghana

    Science.gov (United States)

    Mould-Millman, Nee-Kofi; Rominski, Sarah D; Bogus, Joshua; Ginde, Adit A; Zakariah, Ahmed N; Boatemaah, Christiana A; Yancey, Arthur H; Akoriyea, Samuel Kaba; Campbell, Thomas B

    2015-01-01

    Background: Emergency medical services (EMS) systems provide professional prehospital emergency medical care and transportation to help improve outcomes from emergency conditions. Ghana’s national ambulance service has relatively low public utilization in comparison with the large burden of acute disease. Methods: A survey instrument was developed using Pechansky and Thomas’s model of access covering 5 dimensions of availability, accessibility, accommodation, affordability, and acceptability. The instrument was used in a cross-sectional survey in 2013 in Accra, Ghana; eligible participants were those 18 years and older who spoke English, French, or Twi. Although the analysis was mainly descriptive, logistic regression was used to identify factors associated with reported intention to call for an ambulance in the case of a medical emergency. Results: 468 participants completed surveys, with a response rate of 78.4%. Few (4.5%) respondents had ever used an ambulance in prior emergency situations. A substantial proportion (43.8%) knew about the public access medical emergency telephone number, but of those only 37.1% knew it was a toll-free call. Most (54.7%) respondents believed EMTs offered high-quality care, but 78.0% believed taxis were faster than ambulances and 69.2% thought the number of ambulances in Accra insufficient. Many (23.4%) thought using ambulances to transport corpses would be appropriate. In two hypothetical emergency scenarios, respondents most commonly reported taxis as the preferred transportation (63.6% if a family member were burned in a house fire, 64.7% if a pedestrian were struck by a vehicle). About 1 in 5 respondents said they would call an ambulance in either scenario (20.7% if a family member were burned in a house fire, 23.3% if a pedestrian were struck by a vehicle) while 15.5% and 10.2%, respectively, would use any available vehicle. Those aged 18–35 years were more likely than older respondents to prefer an ambulance (odds

  6. AIRE-Linux

    Science.gov (United States)

    Zhou, Jianfeng; Xu, Benda; Peng, Chuan; Yang, Yang; Huo, Zhuoxi

    2015-08-01

    AIRE-Linux is a dedicated Linux system for astronomers. Modern astronomy faces two big challenges: massive observed raw data which covers the whole electromagnetic spectrum, and overmuch professional data processing skill which exceeds personal or even a small team's abilities. AIRE-Linux, which is a specially designed Linux and will be distributed to users by Virtual Machine (VM) images in Open Virtualization Format (OVF), is to help astronomers confront the challenges. Most astronomical software packages, such as IRAF, MIDAS, CASA, Heasoft etc., will be integrated into AIRE-Linux. It is easy for astronomers to configure and customize the system and use what they just need. When incorporated into cloud computing platforms, AIRE-Linux will be able to handle data intensive and computing consuming tasks for astronomers. Currently, a Beta version of AIRE-Linux is ready for download and testing.

  7. Stochastic Modeling of Airlines' Scheduled Services Revenue

    Science.gov (United States)

    Hamed, M. M.

    1999-01-01

    Airlines' revenue generated from scheduled services account for the major share in the total revenue. As such, predicting airlines' total scheduled services revenue is of great importance both to the governments (in case of national airlines) and private airlines. This importance stems from the need to formulate future airline strategic management policies, determine government subsidy levels, and formulate governmental air transportation policies. The prediction of the airlines' total scheduled services revenue is dealt with in this paper. Four key components of airline's scheduled services are considered. These include revenues generated from passenger, cargo, mail, and excess baggage. By addressing the revenue generated from each schedule service separately, air transportation planners and designers are able to enhance their ability to formulate specific strategies for each component. Estimation results clearly indicate that the four stochastic processes (scheduled services components) are represented by different Box-Jenkins ARIMA models. The results demonstrate the appropriateness of the developed models and their ability to provide air transportation planners with future information vital to the planning and design processes.

  8. Flying through code/space: the real virtuality of air travel

    OpenAIRE

    Dodge, Martin; Kitchin, Rob

    2004-01-01

    Commercial air travel is a key global industry facilitating the complex daily movements of planes, people, goods, and services across the world. In this paper we analyse contemporary air travel through the conceptualisation of a culture of real virtuality.We contend that air travel now consists of passage through 'code/space'. Such code/space includes travel websites, check-in, security check- points, flight decks, air-traffic control, immigration, and customs checkpoints, which t...

  9. Rehabilitation and Prosthetic Services

    Science.gov (United States)

    ... Therapy Mental Health Physical Medicine and Rehabilitation Services Physical Therapy Prosthetic and Sensory Aids Service Benefits Prosthetic and Sensory Aids Service General Information Prosthetic ...

  10. The Service Utility Model in Service Management

    Institute of Scientific and Technical Information of China (English)

    LI Yan; ZHOU Wen-an; SONG Jun-de

    2005-01-01

    Aiming to provide a measurable service Quality of Service (QoS) evaluating method for service inventory management, this paper proposes a new mobile Service Utility Model (SUM), considers the service and business layer elements into the service utility influence profile, and proposes an self-adaptive service inventory management algorithm as a QoS control scheme based on SUM. It can be concluded from the simulation result that the service inventory utility can be fully reflected by SUM and the whole system efficiency is greatly increased by using SUM as the adaptive rule.

  11. Tractor Mechanics: Maintaining and Servicing the Fuel System. Learning Activity Packages 20-33.

    Science.gov (United States)

    Clemson Univ., SC. Vocational Education Media Center.

    Learning activity packages are presented for instruction in tractor mechanics. The packages deal with the duties involved in maintaining the fuel system. The following fourteen learning activity packages are included: servicing fuel and air filters, servicing fuel tanks and lines, adjusting a carburetor, servicing a carburetor, servicing the…

  12. Air Baltic: Estonian Air on nurka surutud / Teele Tammeorg

    Index Scriptorium Estoniae

    Tammeorg, Teele

    2010-01-01

    Air Balticu asepresidendi Janis Vanagsi hinnangul on Estonian Air aastaid jätnud tähelepanuta oma peamised turismiturud ning on praegu halvas seisus. Air Baltic on endiselt huvitatud Estonian Airi ostust. Majandus- ja kommunikatsiooniminister Juhan Partsi seisukoht

  13. Dosimetry Service

    CERN Multimedia

    Dosimetry Service

    2005-01-01

    Please remember to read your dosimeter every month at least once and preferably during the first week. A regular read-out is indispensable in order to ensure a periodic monitoring of the personal dose. You should read your dosimeter even if you have not visited the controlled areas. If you still have the old dosimeter (film badge), please send it immediately for evaluation to us (Bdg 24 E-011). After January 2005 there will be no developing process for the old film system. Information for Contractors: Please remember also to bring the form ‘Confirm Reception of a CERN Dosimeter' signed with ‘Feuille d'enregistrement du CERN'. Without these forms the dosimeter cannot be assigned. Thank you for your cooperation. Dosimetry Service Tel 767 2155 http://cern.ch/rp-dosimetry

  14. Olefin metathesis in air.

    Science.gov (United States)

    Piola, Lorenzo; Nahra, Fady; Nolan, Steven P

    2015-01-01

    Since the discovery and now widespread use of olefin metathesis, the evolution of metathesis catalysts towards air stability has become an area of significant interest. In this fascinating area of study, beginning with early systems making use of high oxidation state early transition metal centers that required strict exclusion of water and air, advances have been made to render catalysts more stable and yet more functional group tolerant. This review summarizes the major developments concerning catalytic systems directed towards water and air tolerance. PMID:26664625

  15. Clean Air and Water

    Centers for Disease Control (CDC) Podcasts

    2007-04-10

    The air we breathe and the water we drink are both vital components of our health. Nevertheless, bacteria, pollutants, and other contaminates can alter life-giving air and water into health-threatening hazards. Learn about how scientists at the Centers for Disease Control and Prevention work to protect the public from air and water-related health risks.  Created: 4/10/2007 by CDC National Center for Environmental Health.   Date Released: 4/13/2007.

  16. Air/liquid collectors

    DEFF Research Database (Denmark)

    Jensen, Søren Østergaard; Olesen, Ole; Kristiansen, Finn Harken

    1997-01-01

    This report determine efficiency equations for combined air/liquid solar collectors by measurements on to different air/liquid collectors. Equations which contain all relevant informations on the solar collectors. A simulation program (Kviksol) has been modified in order to be able to handle...... this kind of collectors. The modified simulation program has been used for the determination of the surplus in performance which solar heating systems with this type of solar collectors for combined preheating of ventilation air and domestic hot water will have. The simulation program and the efficiency...

  17. Olefin metathesis in air

    Directory of Open Access Journals (Sweden)

    Lorenzo Piola

    2015-10-01

    Full Text Available Since the discovery and now widespread use of olefin metathesis, the evolution of metathesis catalysts towards air stability has become an area of significant interest. In this fascinating area of study, beginning with early systems making use of high oxidation state early transition metal centers that required strict exclusion of water and air, advances have been made to render catalysts more stable and yet more functional group tolerant. This review summarizes the major developments concerning catalytic systems directed towards water and air tolerance.

  18. Olefin metathesis in air

    Science.gov (United States)

    Piola, Lorenzo; Nahra, Fady

    2015-01-01

    Summary Since the discovery and now widespread use of olefin metathesis, the evolution of metathesis catalysts towards air stability has become an area of significant interest. In this fascinating area of study, beginning with early systems making use of high oxidation state early transition metal centers that required strict exclusion of water and air, advances have been made to render catalysts more stable and yet more functional group tolerant. This review summarizes the major developments concerning catalytic systems directed towards water and air tolerance. PMID:26664625

  19. Indoor Air Quality

    Science.gov (United States)

    Miyazaki, Takeji

    The reduction of intake of outdoor air volume in air conditioned buildings, adopted as the strategy for saving energy, has caused sick building syndrome abroad. Such symptoms of sick building as headache, stimuli of eye and nose and lethargy, appears to result from cigarette smoke, folmaldehyde and volatile organic carbons. On the other hand, in airtight residences not only carbon monoxide and nitrogen oxides from domestic burning appliances but also allergens of mite, fungi, pollen and house dust, have become a subject of discussion. Moreover, asbestos and radon of carcinogen now attract a great deal of attention. Those indoor air pollutants are discussed.

  20. Air Quality Monitoring Programme

    DEFF Research Database (Denmark)

    Kemp, K.; Palmgren, F.

    The air quality in Danish cities has been monitored continuously since 1982 within the Danish Air Quality (LMP) network. The aim has been to follow the concentration levels of toxic pollutants in the urban atmosphere and to provide the necessary knowledge to assess the trends, to perform source...... apportionment, and to evaluate the chemical reactions and the dispersion of the pollutants in the atmosphere. In 2002 the air quality was measured in four Danish cities and at two background sites. NO2 and PM10 were at several stations found in concentrations above the new EU limit values, which the Member...

  1. Mid-air Acrobatics

    Institute of Scientific and Technical Information of China (English)

    LlU FENG'AN

    2011-01-01

    On September 1 two new aerobatic demonstration teams,theSky Wing and the Red Falcon,debuted at an air show held in Changchun,capital of northeast China's Jilin Province.The show was staged at a ceremony held by the Aviation University of the People's Liberation Army (PLA) Air Force.Also performing at the show was the 50-year-old Bayi aerobatic demonstration team.The teams demonstrated their superlative flying skills,which showcase the quality of the air force's rigorous pilot training.

  2. FAULT TREE ANALYSIS FOR EXPOSURE TO REFRIGERANTS USED FOR AUTOMOTIVE AIR CONDITIONING IN THE U.S.

    Science.gov (United States)

    A fault tree analysis was used to estimate the number of refrigerant exposures of automotive service technicians and vehicle occupants in the United States. Exposures of service technicians can occur when service equipment or automotive air-conditioning systems leak during servic...

  3. The air quality in ventilation installations. Practical guidelines; Qualite de l'air dans les installations aerauliques. Guide pratique

    Energy Technology Data Exchange (ETDEWEB)

    Angeli, L. [France Air, 91 - Chilly Mazarin (France); Bianchina, M. [Unelvent, 93 - Le Bourget (France); Blazy, M. [Anjos, 01 - Torcieu (France); Boulanger, X. [Aldes, 21 - Chenove (France); Chiesa, M. [Atlantic (France); Duclos, M. [Groupe Titanair, 69 - Lyon (France); Hubert, D.; Kridorian, O. [Groupe Astato, Blanc Mesnil (France); Josserand, O. [Carrier (Belgium); Lancieux, C. [Camfil, 60 - Saint Martin Longueau (France); Lemaire, J.C. [Agence de l' Environnement et de la Maitrise de l' Energie, ADEME, 75 - Paris (France); Petit, Ph. [Compagnie Industrielle d' Applications Thermiques ( CIAT ), 75 - Paris (France); Ribot, B. [Electricite de France (EDF), 75 - Paris (France); Tokarek, S. [Gaz de France (GDF), 75 - Paris (France); Bernard, A.M.; Tissot, A. [Centre Technique des Industries Aerauliques et Thermiques (CETIAT), 69 - Villeurbanne (France)

    2004-07-01

    The present guide aims to provide design departments, maintenance companies and builders with practical guidelines and recommendations for the installation of ventilation and air-conditioning systems. The objective is to ensure good Indoor Air Quality (IAQ) and to safeguard the health and well-being of the occupants. The guide deals with aspects of design, dimensioning, installation and servicing, all of which play a major role in guaranteeing IAQ and duct-work hygiene. These steps are reviewed for the principal ventilation systems met in both residential and commercial premises. The first part presents the system and draws the attention of the user to specific points which require particular care in term of IAQ. The second part details recommended practice component by component, in respect of design, installation and servicing. Application of these simple guidelines during the various project stages is essential, in order to ensure a good IAQ in ventilation systems. Content: introduction; good ventilation; systems: exhaust ventilation, balanced ventilation, air handling unit, terminal ventilation units, impact of systems on indoor air quality, components: air inlet, air filter, heat recovery unit, heating or cooling coil, humidifier, mechanical fan unit, cowl and hybrid ventilation fan, mixing box, ventilation duct-work, air outlet and air terminal device; references.

  4. Ambient Air Quality Data Inventory

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Office of Air and Radiation's (OAR) Ambient Air Quality Data (Current) contains ambient air pollution data collected by EPA, other federal agencies, as well as...

  5. Ambient Air Quality Data Inventory

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Office of Air and Radiation??s (OAR) Ambient Air Quality Data (Current) contains ambient air pollution data collected by EPA, other federal agencies, as well as...

  6. Introduction to Indoor Air Quality

    Science.gov (United States)

    ... US Environmental Protection Agency Search Search Indoor Air Quality (IAQ) Share Facebook Twitter Google+ Pinterest Contact Us ... Indoor Air Quality An Introduction to Indoor Air Quality IAQ & Health Causes of IAQ Problems Identifying IAQ ...

  7. Emission Facilities - Air Emission Plants

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Represents the Primary Facility type Air Emission Plant (AEP) point features. Air Emissions Plant is a DEP primary facility type related to the Air Quality Program....

  8. Air Quality Guide for Ozone

    Science.gov (United States)

    Local Air Quality Conditions Zip Code: State : My Current Location Air Quality Guide for Ozone Ground-level ozone is one of our nation’s most common air pollutants. Use the chart below to help reduce ...

  9. The service Ouroboros: Designing personas service cycles

    DEFF Research Database (Denmark)

    Gudiksen, Sune Klok; Brandt, Eva

    2014-01-01

    Many companies investigate new business opportunities in a turn from product to service design. As service offerings expand over time and space, such notions as ‘customer journey’ or ‘service blueprint’ have been suggested to grasp and design the nature of the emergent services. However, we find ...

  10. Transportation and Air Quality

    Science.gov (United States)

    ... factors research. - Modeling & Inventories - Testing & Measuring Emissions - Clean Automotive Technologies - Emission Factors Research This page is maintained by EPA's Office of Transportation and Air Quality (OTAQ) . For more: About Us | Get E-mail ...

  11. Air transportation energy efficiency

    Science.gov (United States)

    Williams, L. J.

    1977-01-01

    The energy efficiency of air transportation, results of the recently completed RECAT studies on improvement alternatives, and the NASA Aircraft Energy Efficiency Research Program to develop the technology for significant improvements in future aircraft were reviewed.

  12. Criteria Air Emissions Trends

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Air Emissions Trends site provides national trends of criteria pollutant and precursor emissions data based on the the National Emissions Inventory (NEI) from...

  13. Upswing for hot air

    Energy Technology Data Exchange (ETDEWEB)

    Banse, Stephanie

    2010-07-01

    Optimism reigns in the air collector sector. The market is characterised by high growth rates and numerous new entrants: reason enough to present the sector on its own world map for the first time. (orig.)

  14. Regional Air Quality Data

    Data.gov (United States)

    U.S. Environmental Protection Agency — This asset provides data on regional air quality, including trace level SO2, nitric acid, ozone, carbon monoxide, and NOy; and particulate sulfate, nitrate, and...

  15. Radioactive air sampling methods

    CERN Document Server

    Maiello, Mark L

    2010-01-01

    Although the field of radioactive air sampling has matured and evolved over decades, it has lacked a single resource that assimilates technical and background information on its many facets. Edited by experts and with contributions from top practitioners and researchers, Radioactive Air Sampling Methods provides authoritative guidance on measuring airborne radioactivity from industrial, research, and nuclear power operations, as well as naturally occuring radioactivity in the environment. Designed for industrial hygienists, air quality experts, and heath physicists, the book delves into the applied research advancing and transforming practice with improvements to measurement equipment, human dose modeling of inhaled radioactivity, and radiation safety regulations. To present a wide picture of the field, it covers the international and national standards that guide the quality of air sampling measurements and equipment. It discusses emergency response issues, including radioactive fallout and the assets used ...

  16. Indoor air pollution

    International Nuclear Information System (INIS)

    Although official efforts to control air pollution have traditionally focused on outdoor air, it is now apparent that elevated contaminant concentrations are common inside some private and public buildings. Concerns about potential public health problems due to indoor air pollution are based on evidence that urban residents typically spend more than 90 percent of their time indoors, concentrations of some contaminants are higher indoors than outdoors, and for some pollutants personal exposures are not characterized adequately by outdoor measurements. Among the more important indoor contaminants associated with health or irritation effects are passive tobacco smoke, radon decay products, carbon monoxide, nitrogen dioxide, formaldehyde, asbestos fibers, microorganisms and aeroallergens. Efforts to assess health risks associated with indoor air pollution are limited by insufficient information about the number of people exposed, the pattern and severity of exposures, and the health consequences of exposures. An overall strategy should be developed to investigate indoor exposures, health effects, control options, and public policy alternatives

  17. Indoor air quality

    International Nuclear Information System (INIS)

    Rising energy prices, among other factors, have generated an incentive to reduce ventilation rates and thereby reduce the cost of heating and cooling buildings. Reduced ventilation in buildings may significantly increase exposure to indoor air pollution and perhaps have adverse effects on occupant health and comfort. Preliminary findings suggest that reduced ventilation may adversely affect indoor air quality unless appropriate control strategies are undertaken. The strategies used to control indoor air pollution depend on the specific pollutant or class of pollutants encountered, and differ somewhat depending on whether the application is to an existing building or a new building under design and construction. Whenever possible, the first course of action is prevention or reduction of pollutant emissions at the source. In most buildings, control measures involve a combination of prevention, removal, and suppression. Common sources of indoor air pollution in buildings, the specific pollutants emitted by each source, the potential health effects, and possible control techniques are discussed

  18. Air Data Calibration Facility

    Data.gov (United States)

    Federal Laboratory Consortium — This facility is for low altitude subsonic altimeter system calibrations of air vehicles. Mission is a direct support of the AFFTC mission. Postflight data merge is...

  19. DANIDA; Air Quality Monitoring Programme. Mission 4 Report

    Energy Technology Data Exchange (ETDEWEB)

    Sivertsen, B.

    1997-12-31

    In the development of the Environmental Information and Monitoring Programme for the Arab Republic of Egypt (EIMP), NILU is responsible for the establishment of an air pollution monitoring system. This report summarizes the fourth mission to Egypt, including planning of the second phase meetings and site visits. Additional air quality sites in Cairo have been described. A project group meeting and a visit to Egypt Meteorological Service have been reported

  20. Hot Air Engines

    OpenAIRE

    P. Stouffs

    2011-01-01

    Invented in 1816, the hot-air engines have known significant commercial success in the nineteenth century, before falling into disuse. Nowadays they enjoy a renewed interest for some specific applications. The "hot-air engines" family is made up of two groups: Stirling engines and Ericsson engines. The operating principle of Stirling and Ericsson engines, their troubled history, their advantages and their niche applications are briefly presented, especially in the field of...

  1. Air Distribution in Rooms

    DEFF Research Database (Denmark)

    Nielsen, Peter V.

    The research on air distribution in rooms is often done as full-size investigations, scale-model investigations or by Computational Fluid Dynamics (CFD). New activities have taken place within all three areas and this paper draws comparisons between the different methods. The outcome of the l......EA sponsored research "Air Flow Pattern within Buildings" is used for comparisons in some parts of the paper because various types of experiments and many countries are involved....

  2. Nuclear air cushion vehicles.

    Science.gov (United States)

    Anderson, J. L.

    1973-01-01

    This paper serves several functions. It identifies the 'state-of-the-art' of the still-conceptual nuclear air cushion vehicle, particularly the nuclear powerplant. Using mission studies and cost estimates, the report describes some of the advantages of nuclear power for large air cushion vehicles. The paper also summarizes the technology studies on mobile nuclear powerplants and conceptual ACV systems/missions studies that have been performed at NASA Lewis Research Center.

  3. Air gun test facility

    International Nuclear Information System (INIS)

    This paper describes a facility that is potentially useful in providing data for models to predict the effects of nuclear explosions on cities. IIT Research Institute has a large air gun facility capable of launching heavy items of a wide variety of geometries to velocities ranging from about 80 fps to 1100 fps. The facility and its capabilities are described, and city model problem areas capable of investigation using the air gun are presented

  4. Canada's Clean Air Act

    International Nuclear Information System (INIS)

    This paper provided an outline of Canada's Clean Air Act and examined some of the regulatory changes that will occur as a result of its implementation. The Act is being introduced to strengthen the legislative basis for taking action on reducing air pollution and GHGs, and will allow the government to regulate both indoor and outdoor air pollutants and GHGs. The Act will require the Ministers of the Environment and Health to establish national air quality objectives, as well as to monitor and report on their attainment. The Canadian Environmental Protection Act will be amended to enable the government to regulate the blending of fuels and their components. The Motor Vehicle Fuel Consumption Standards Act will also be amended to enhance the government's authority to regulate vehicle fuel efficiency. The Energy Efficiency Act will also be expanded to allow the government to set energy efficiency standards and labelling requirements for a wider range of consumer and commercial products. The Act will commit to short, medium and long-term industrial air pollution targets. Regulations will be proposed for emissions from industry; on-road and off-road vehicles and engines; and consumer and commercial products. It was concluded that the Government of Canada will continue to consult with provinces, territories, industries and Canadians to set and reach targets for the reduction of both indoor and outdoor air pollutants and GHG emissions. 6 figs

  5. 14 CFR 298.3 - Classification.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Classification. 298.3 Section 298.3... REGULATIONS EXEMPTIONS FOR AIR TAXI AND COMMUTER AIR CARRIER OPERATIONS General § 298.3 Classification. (a) There is hereby established a classification of air carriers, designated as “air taxi operators,”...

  6. ITER diagnostics ex-vessel engineering services

    Energy Technology Data Exchange (ETDEWEB)

    Arumugam, A.P., E-mail: arun.prakash@iter.org; Walker, C.I.; Andrew, P.; Barnsley, R.; Beltran, D.; Bertalot, L.; Dammann, A.; Direz, M.F.; Drevon, J.M.; Encheva, A.; Giacomin, T.; Hourtoule, J.; Kuehn, I.; Lanza, R.; Levesy, B.; Maquet, P.; Patel, K.M.; Patisson, L.; Pitcher, C.S.; Portales, M.; and others

    2013-10-15

    Highlights: • This paper describes about the ITER diagnostics ex-vessel engineering services. • It describes various diagnostics systems, its location and its environment. • Diagnostics interfaces with other services such as the buildings, HVAC, electrical services, cooling water, vacuum, liquid and gas distribution. • All the interfaces with these services are identified and defined. • Buildings services for diagnostics, such as penetrations, local shielding, embedment and temperature control are discussed. -- Abstract: Extensive diagnostics systems will be installed on the ITER machine to provide the measurements necessary to control, evaluate and optimize plasma performance in ITER and to further the understanding of plasma physics. These include measurements of temperature, density, impurity concentration, and particle and energy confinement times. ITER diagnostic systems extend from the center of the Tokamak to the various diagnostic areas, where they are controlled and acquired data is processed. This mainly includes the areas such as ports, port cells, gallery, diagnostics enclosures and cubicle areas. The diagnostics port plugs encloses the front end of the diagnostic systems and the diagnostics building houses the diagnostics equipment, instrumentation and control cubicles. There are several systems providing services to diagnostics. These mainly include ITER buildings, electrical power services, cooling water services, Heating Ventilation and Air Conditioning (HVAC), vacuum services, liquid and gas distribution services, cable engineering, de-tritiation systems, control cubicles, etc. Requirements of these service systems have to be defined, even though many of the diagnostics are at an early stage of development. It is a real challenge to define and to design diagnostics systems considering the constraints imposed by these service systems. This paper summarizes the provision of these services to the individual diagnostics and diagnostics areas

  7. Changes in the Trade and Promotion of Passenger Air Transport

    Directory of Open Access Journals (Sweden)

    Cornelia Petroman

    2010-10-01

    Full Text Available Passenger air carriers will be able to systematically overbook transport capacities on certain aerial routes due to the quick adaptation to modern trading means, to the modern promotion of services and to the modern means of information of potential travellers. Though ticket booking in aerial transport made its debut as a simple process of automation of ticket sale, it soon turned into a strong marketing instrument with unexpected effects on competitiveness on the market of tourism aerial transport. The use of modern ways of operating Computer Reservation Systems and Billing Settlement Plans by passenger air companies and by tour operators improves service standards.

  8. The AirQuality SenseBox

    Science.gov (United States)

    Demuth, Dustin; Nuest, Daniel; Bröring, Arne; Pebesma, Edzer

    2013-04-01

    In the past year, a group of open hardware enthusiasts and citizen scientists had large success in the crowd-funding of an open hardware-based sensor platform for air quality monitoring, called the Air Quality Egg. Via the kickstarter platform, the group was able to collect triple the amount of money than needed to fulfill their goals. Data generated by the Air Quality Egg is pushed to the data logging platform cosm.com, which makes the devices a part of the Internet of Things. The project aims at increasing the participation of citizens in the collection of data, the development of sensors, the operation of sensor stations, and, as data on cosm is publicly available, the sharing, visualization and analysis of data. Air Quality Eggs can measure NO2 and CO concentrations, as well as relative humidity and temperature. The chosen sensors are low-cost and have limited precision and accurracy. The Air Quality Egg consists of a stationary outdoor and a stationary indoor unit. Each outdoor unit will wirelessly transmit air quality measurements to the indoor unit, which forwards the data to cosm. Most recent versions of the Air Quality Egg allow a rough calibration of the gas sensors and on-the-fly conversion from raw sensor readings (impedance) to meaningful air quality data expressed in units of parts per billion. Data generated by these low-cost platforms are not intended to replace well-calibrated official monitoring stations, but rather augment the density of the total monitoring network with citizen sensors. To improve the usability of the Air Quality Egg, we present a new and more advanced concept, called the AirQuality SenseBox. We made the outdoor platform more autonomous and location-aware by adding solarpanels and rechargeable batteries as a power source. The AirQuality SenseBox knows its own position from a GPS device attached to the platform. As a mobile sensor platform, it can for instance be attached to vehicles. A low-cost and low-power wireless chipset

  9. 14 CFR 217.4 - Data collected (service classes).

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Data collected (service classes). 217.4 Section 217.4 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS REPORTING TRAFFIC STATISTICS BY FOREIGN AIR CARRIERS IN CIVILIAN SCHEDULED, CHARTER, AND NONSCHEDULED SERVICES §...

  10. 46 CFR 128.410 - Ship's service refrigeration systems.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Ship's service refrigeration systems. 128.410 Section 128.410 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OFFSHORE SUPPLY VESSELS... service refrigeration systems. No self-contained unit either for air-conditioning or for...

  11. Impact of air traffic emissions on airport air quality. Multi-scale modeling, test bed and field measurements

    Science.gov (United States)

    Ramaroson, R.; Vuillot, F.; Durand, Y.; Courbet, B.; Janin, F.; Copalle, A.; Guin, C.; Paux, E.; Vannier, F.; Talbaut, M.; Weill, M.

    2004-12-01

    Air traffic emissions are playing a significant role in airport air quality. Engine emissions contribute to the ozone and PM formation. There is an emergence of a need to develop advanced numerical tools and airport emission databases for air pollution studies. Field monitoring at airports necessary to support model assessment is still limited in time and space. The French ONERA AIRPUR project has focused on three objectives: emission inventories; dispersion models; field measurements. Results are presented and discussed in this paper. The ground spatial distribution of LTO emissions using realistic aircraft trajectories, aircraft-engine classification by ICAO, fuel flow methodology and diurnal variations of fleet number, is presented and discussed. Exhaust species time evolution is simulated using a chemical-dispersion model. Results show high emissions of NOx during LTO, and a maximum of CO and Hydrocarbons during taxi. Depending on seasons, the NOx lifetime is varying differently; lower concentration is calculated far away from LTO emissions. Longer-lived pollutants such as ozone are formed downstream and require the use of advanced dispersion models. For this reason, two interactive models coupling the micro and the regional scales are developed and used in this work. A 3D CFD model (CEDRE) simulates the flow characteristics around buildings and the dispersion of emissions. CEDRE boundary conditions are provided by the 3D nested dispersion model MEDIUM/MM5, which includes a surface boundary layer chemistry and calculates the concentration of pollutants from the local to the airport vicinities. The CFD results show a tracer accumulation calculated downstream beside terminals, consistent with observations at some mega-airports. Sensibility studies are conducted to highlight the impact of emissions on ozone formation with MEDIUM. Results show that longer-lived species are produced downstream, their concentration depending on NOx, aromatics and VOC released by

  12. Measurement results obtained from air quality monitoring system

    Energy Technology Data Exchange (ETDEWEB)

    Turzanski, P.K.; Beres, R. [Provincial Inspection of Environmental Protection, Cracow (Poland)

    1995-12-31

    An automatic system of air pollution monitoring operates in Cracow since 1991. The organization, assembling and start-up of the network is a result of joint efforts of the US Environmental Protection Agency and the Cracow environmental protection service. At present the automatic monitoring network is operated by the Provincial Inspection of Environmental Protection. There are in total seven stationary stations situated in Cracow to measure air pollution. These stations are supported continuously by one semi-mobile (transportable) station. It allows to modify periodically the area under investigation and therefore the 3-dimensional picture of creation and distribution of air pollutants within Cracow area could be more intelligible.

  13. The automobile in Japan

    OpenAIRE

    Lone, Stewart; Madeley, Christopher

    2005-01-01

    Lone: The 1920s saw the emergence in Kansai of modern industrial urban living with the development of the underground, air services; wireless telephones, super express trains etc. Automobiles dominated major streets from the early 1920s in the new Age of Speed. Using Kyoto city as an example, the article covers automobile advertising, procedures for taxis, buses and cars and traffic safety and regulation. Madeley: Nissan Motor Company had a longer connection with the British industry than any...

  14. Clean air Hamilton

    Energy Technology Data Exchange (ETDEWEB)

    McCarry, B.E. [McMaster Univ., Hamilton, ON (Canada)

    2002-07-01

    The industrial City of Hamilton is located on Lake Ontario, downwind from the Ohio Valley. The Hamilton Air Quality Initiative (HAQI) was divided in several phases, one of which is Clean Air Hamilton. This most recent phase was described in this presentation. Two major goals of this phase were: to ensure that the City of Hamilton has the best air quality of any major urban area in Ontario, and to reduce the emissions of greenhouse gases by 20 per cent compared to the levels in 1990. There were five main objectives to this initiative, namely: (1) the identification of priority air quality issues, (2) achieving an understanding of air quality issues, (3) the identification of sources, the evaluation of impacts and the recommendation of solutions, (4) the assessment of human health, and (5) the identification of further research. The reduction of air quality impacts is progressing through the support provided to the Drive Clean Program, the discouragement of vehicle idling, the support to car pooling initiatives, and the promotion of green vehicles. The implementation of pollution control technologies is taking place on the industrial side, as well as the development of plans to reduce steel industry emissions, the development of energy conservation measures and the promotion of green building practices. Efforts are being deployed over fleet greening partnerships, community tree planting program, an international air conference, an electronic information network linking the United States and the communities of Southern Ontario, a road dust study, a truck emissions research project, the assessment of human health impacts, and finally methods for the monitoring of local improvements. figs.

  15. Dynamics of Air Passenger Transportation in Eastern Romania

    Directory of Open Access Journals (Sweden)

    Dan Păuna

    2013-10-01

    Full Text Available The concept of an air route mile is, of course, entirely different from that of a road or rail route mile. An air route is a direct service between two cities. The too-rapid development of the air route system must inevitably result in an average intensity of operations on the route, and this means the frequencies are low or high, or the airplanes used are profitable or unprofitable. The purpose of this paper is to emphasize air passenger dynamics in Romania and to calculate specific indicators regarding this calculation for the airports in eastern Romania in 2011t., this, because the air passenger featurea indicator passenger – kilometer, starting with 2009 no longer calculate for aviation and shipping.

  16. The performance and subjective responses of call-center operators with new and used supply air filters at two outdoor air supply rates

    DEFF Research Database (Denmark)

    Wargocki, Pawel; Wyon, David; Fanger, Povl Ole

    2004-01-01

    A 2X2 replicated field intervention experiment was conducted in a call-center providing a telephone directory service: outdoor air supply rate was adjusted to be 8% of the total airflow of 430 l/s (3.5/h)and the supply air filters were either new or had been in place for 6 months. One of these...

  17. Autonomous matchmaking web services

    OpenAIRE

    Yu, Hong Qing; Dietze, Stefan; Benn, Neil

    2010-01-01

    Current Semantic Web Services research investigates how to dynamically discover assemble and invoke Web services. Despite many research efforts, Semantic Web Services are still not fully recognized in industry. One important reason is the dissevered description layers of syntax and semantics. In other words, semantics is only useful for a service broker to discover services whereas service requesters still need to invoke services based on syntactic descriptions. In this paper, we view semanti...

  18. Hubungan Kualitas Layanan dengan Loyalitas Pelanggan Lion Air

    OpenAIRE

    Sentosa, Lina

    2016-01-01

    The increase in number of airlines industry in Indonesia has caused competition between airlines company. In order to survive in this industry, delivering high quality of service to the passengers is needed so that airline company can survive and strengthen their competitiveness. This study aims to propose a relationship between service quality with customer loyalty of Lion Air. This study used quantitative approach using 158 Lion Air’s passengers as subjects and selected using incidental sam...

  19. Computers in Air Defence

    Directory of Open Access Journals (Sweden)

    P. V.S. Rao

    1987-10-01

    Full Text Available With man's mastery over the third dimension - the near atmosphere and space- it has become increasingly necessary to protect oneself not merely from attacks from land and the sea but, more importantly, from attacks from the air. This was recognised even during the World War II and a rudimentary air defence capability was sought to be established; by the manul (visual surveillance and the anti-aircraft guns. The advent of radar signified a major advance in air defence technology and techniques. Rather than depend on visual observation and the hazards and limitations thereof, it became possible with radar to detect the presence of flying objects at much great distances. The PPI display of a conventional air-surveillance radar permits an operator to scan the sky for several hundreds of kilometers all around. Early radar-based air defence systems were dependent on human observation and decision making for detecting targets, identifying them, deciding on interception strategy and for recovering the interceptor after completion of his mission. This was feasible because, with a radar of between 200 to 400 kilometers and aircraft speeds in the range of 500 kilometers per hour, upto 30 minutes warning was available before the target was overhead.

  20. Indoor air pollution

    International Nuclear Information System (INIS)

    Indoor air pollution after being a neglected subject for a number of years, is attracting attention recently because it is a side effect of energy crisis. About 50% of world's 6 billion population, mostly in developing countries, depend on biomass and coal in the form of wood, dung and crop residues for domestic energy because of poverty. These materials are burnt in simple stoves with incomplete combustion and infants, children and women are exposed to high levels of indoor air pollution for a considerable period, approximately between 2-4 hours daily. Current worldwide trade in wood fuel is over US $7 billion and about 2 million people are employed full time in production and marketing it. One of the most annoying and common indoor pollutant in both, developing and developed countries, is cigarette smoke. Children in gas-equipped homes had higher incidences of respiratory disease. Babies' DNA can be damaged even before they are born if their mothers breathe polluted air. Exposure to indoor air pollution may be responsible for nearly 2 million excess deaths in developing countries and for 4% of the global burden of the disease. Only a few indoor pollutants have been studied in detail. Indoor air pollution is a major health threat on which further research is needed to define the extent of the problem more precisely and to determine solutions by the policy-makers instead of neglecting it because sufferers mostly belong to Third World countries. (author)

  1. Infants Can Study Air Science.

    Science.gov (United States)

    Ward, Alan

    1983-01-01

    Provided are activities and demonstrations which can be used to teach infants about the nature of air, uses of air, and objects that fly in the air. The latter include airships, hot-air balloons, kites, parachutes, airplanes, and Hovercraft. (JN)

  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. 30 CFR 285.659 - What requirements must I include in my SAP, COP, or GAP regarding air quality?

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false What requirements must I include in my SAP, COP, or GAP regarding air quality? 285.659 Section 285.659 Mineral Resources MINERALS MANAGEMENT SERVICE... must I include in my SAP, COP, or GAP regarding air quality? (a) You must comply with the Clean Air...

  4. A Study of Eco-service Valuation of Saihanba Forest

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    The study made a monetized valuation of eco-service provided by forests at Saihanba Mechanic Forest Farm in terms of water conservancy, soil conversation, carbon sequestration, micro-climate adjustment, air quality improvement, protection for agriculture, biodiversity maintenance, and landscape & recreation. The results revealed that the total value of various eco-services is 3.061 billion yuan/a, while the eco-services of unit area forest values at 42 300 yuan/(ha·a).

  5. Managing service excellence. Internal customer service training

    International Nuclear Information System (INIS)

    WHO ARE OUR CUSTOMERS? Electric Users, regulators, vendors, suppliers, or our own employees? The answer is ALL exclamation point They are all customers. Regardless if they are external or internal customers, one must focus on quality of service delivery in order to maintain customer satisfaction. The most successful companies are quickly realizing that managing SERVICE EX NCE is our only future. For the next decade, the issue of service quality will exceed the issue of productivity. It is very easy to see that the business behind a utility is serving our electric consumers. However, internal customer service - service excellence to employees inside a company is the foundation for success. This paper describes a training program that is being implemented across Duke Power for employees on internal customer service. How we provide service to each other within a company impacts service quality to our external customers. This training refocuses behaviors and perceptions so to concentrate on quality service delivery to our internal customers - our employees. We all have positive and negative experiences with obtaining quality service by either external organizations or internal employees. Therefore, we start with a common foundation. Whether it be a supplier, vendor, or a station administrative group, we have experienced either excellent or poor customer service. All of us have potential in managing the delivery of excellent customer service. However, many of us may need new perspectives so to add depth with which we view and manage service excellence to our internal customers

  6. AirPort Extreme

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    AirPort Extreme是基于IEEE802.11g无线通讯协议的54Mbps的无线路由机站,它提供了比802.11b标准几乎快5倍以上的连接速率。AirPort Extreme基站可以同时为50台Mac和PC机用户服务。它支持从无线打印至带有USB接口或以太网接口的打印机,支持无线桥接技术,并同时提供了一整套强大的管理工具。除此之外,AirPort Extreme基站还配有一个内建防火墙,

  7. Service co-innovation

    DEFF Research Database (Denmark)

    Henten, Anders; Sundbo, Jon; Sundbo, Donna

    This paper examines the factors affecting the innovativeness of service encounters. The assumption is that a considerable share of innovations in service industries is initiated in the service encounters. The theoretical foundation of this paper builds on a combination of research tradition...... of studies of the degree of satisfaction of the users with the services in the service encounters and studies that examine service innovation processes. The paper is based on research conducted in 21 service delivery situations in as many service companies. Drivers of and barriers to encounterbased service...

  8. Web Services Technology Infrastructure

    OpenAIRE

    Gray, Geraldine; O’Connor, Kieran

    2015-01-01

    Web Services using eXtensible Markup Language (XML) based standards are becoming the new archetype for enabling business to business collaborations. This paper describes the conceptual architecture and semantics of constructing and consuming Web Services. It describes how Web Services fit into the enterprise application environment. It discusses Web Services security. Finally, it outlines the flaws of Web Services in their current state.

  9. Air the excellent canopy

    CERN Document Server

    Fahy, F

    2013-01-01

    We take it for granted, but without it we perish and if we continue to abuse it, it may kill us in the end. This fascinating text provides an understanding and appreciation of the role that air plays in our environment and its importance in relation to human life and technology. Aimed at those who are scientifically curious but who have no specialist training, it contains no mathematical equations and relies upon the qualitative descriptions and analogies to explain the more technical parts of the text together with simple home experiments to illustrate a range of air-based phenomena. Liberall

  10. 33 CFR 334.1280 - Bristol Bay, Alaska; air-to-air weapon range, Alaskan Air Command, U.S. Air Force.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Bristol Bay, Alaska; air-to-air weapon range, Alaskan Air Command, U.S. Air Force. 334.1280 Section 334.1280 Navigation and Navigable... REGULATIONS § 334.1280 Bristol Bay, Alaska; air-to-air weapon range, Alaskan Air Command, U.S. Air Force....

  11. Defining Service and Non-Service Exchanges

    OpenAIRE

    Sandeep Kayastha

    2011-01-01

    Clear-cut classification of exchanges into services and non-services is vital for governments to estimate contributions of service and other sectors to national incomes, for businesses to know their tax and tortious liabilities and for researchers to develop new theories and concepts of services. Unfortunately, the definitions and schema they use to classify exchanges have serious shortcomings. This paper proposes a legal approach to classify exchanges. Whereas existing definitions and schema...

  12. Air density correction in ionization dosimetry

    International Nuclear Information System (INIS)

    Air density must be taken into account when ionization dosimetry is performed with unsealed ionization chambers. The German dosimetry protocol DIN 6800-2 states an air density correction factor for which current barometric pressure and temperature and their reference values must be known. It also states that differences between air density and the attendant reference value, as well as changes in ionization chamber sensitivity, can be determined using a radioactive check source. Both methods have advantages and drawbacks which the paper discusses in detail. Barometric pressure at a given height above sea level can be determined by using a suitable barometer, or data downloaded from airport or weather service internet sites. The main focus of the paper is to show how barometric data from measurement or from the internet are correctly processed. Therefore the paper also provides all the requisite equations and terminological explanations. Computed and measured barometric pressure readings are compared, and long-term experience with air density correction factors obtained using both methods is described

  13. Evaluation of Loss of Degraded Farmland Ecosystem Services in Tibet, China

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Four environmemtal service functions of wheat, barley and rape ecosystem are evaluated in material production, air adjustment (including carbon dioxide fixation and oxygen release in Tibetan Autonomous Region), water conservation, and nutrient recycling. Based on it the economic loss of environment due to desertification is valued. The results show that the service functions of farmland ecosystem in Tibet are totally valued at 4 436. 2 × 106 yuan, the value of each service function is ordered as: air adjust...

  14. ServiceNow

    Data.gov (United States)

    US Agency for International Development — A cloud based service for creating a single system of record for all types of business services used by OCIO. Service Now applications are built on a single...

  15. Service design and delivery

    CERN Document Server

    Macintyre, Mairi; Angelis, Jannis

    2011-01-01

    This inclusive overview of the increasingly important role played by the service industry focuses on the development of the various processes employed by service organizations as well as exploring the links between service management and products.

  16. Marketing Youth Services.

    Science.gov (United States)

    Dimick, Barbara

    1995-01-01

    Marketing techniques in youth services are useful for designing programs, collections, and services and for determining customer needs. The marketing mix--product, place, price, and practice--provides a framework for service analysis. (AEF)

  17. Theme: Service Learning.

    Science.gov (United States)

    Agricultural Education Magazine, 2001

    2001-01-01

    Twelve theme articles discuss service learning and reflection in agricultural education, student perspective on service learning, Future Farmers of America, character education, intergenerational projects, agricultural communications, and service learning as advocacy. (SK)

  18. Air quality effects of South Carolina electric and gas company's proposed Cope power plant

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — A review of preliminary determination prepared by the South Carolina bureau of air quality control for the South Carolina electric and gas company's proposed cope...

  19. Report of Findings: Cold Bay Air Force Station (Grant Point) military contaminants: Fiscal year 1988 collections

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes our contaminants investigation at the abandoned Cold Bay Air Force Station (Station), located on the Izembek National Wildlife Refuge at...

  20. Environmental Assessment for the management of the Greenbelt Area at Naval Air Station (NAS)

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Approximately 3,595 acres of land around Naval Air Station (NAS) Fallon, known as the greenbelt, are out leased to local farmers for agricultural production. In...