A brownfield to greenfield success story: Denver Radium Superfund Site

International Nuclear Information System (INIS)

Baracani, E.; Bruskin, L.J.

1996-01-01

The Denver Radium Site consists of forty-nine separate sites divided into 11 operable units throughout the city of Denver, Colorado. The sites contained radioactive soils and residues (310,000 tons) from processing of radium in the early 1900s. The majority of the radioactive material was removed, transported by rail, and disposed offsite in Utah. During radiologic cleanup at the former Robinson Brick Company Site (ROBCO), (OU No. 4/5), metal contaminated soils from previous smelting operations were encountered. The Denver Radium Site was placed on the National Priorities List (NPL), and through cooperation of private parties, the state and federal governments, the land was cleaned up and restored to productive use

The history of aggregate development in the denver, Co area

Science.gov (United States)

Langer, W.H.

2009-01-01

At the start of the 20th century Denver's population was 203,795. Most streets were unpaved. Buildings were constructed of wood frame or masonry. Transport was by horse-drawn-wagon or rail. Statewide, aggregate consumption was less than 0.25 metric tons per person per year. One hundred years later Denver had a population of 2,365,345. Today Denver is a major metropolitan area at the crossroads of two interstates, home to a new international airport, and in the process of expanding its light rail transit system. The skyline is punctuated with skyscrapers. The urban center is surrounded with edge cities. These changes required huge amounts of aggregate. Statewide, aggregate consumption increased 50 fold to over 13 metric tons per person per year. Denver has a large potential supply of aggregate, but sand and gravel quality decreases downstream from the mountain front and potential sources of crushed stone occur in areas prized for their scenic beauty. These issues, along with urban encroachment and citizen opposition, have complicated aggregate development and have paved a new path for future aggregate development including sustainable resource management and reclamation techniques.

78 FR 64007 - Notice of Inventory Completion: University of Denver Department of Anthropology and Museum of...

Science.gov (United States)

2013-10-25

....R50000] Notice of Inventory Completion: University of Denver Department of Anthropology and Museum of Anthropology, Denver, CO; Correction AGENCY: National Park Service, Interior. ACTION: Notice; correction. SUMMARY: The University of Denver Museum of Anthropology has corrected an inventory of human remains and...

Metro Conservation Corridors

Data.gov (United States)

Minnesota Department of Natural Resources — The Metro Conservation Corridors (MeCC) grow out of the natural resource analysis work done by the DNR in the late '90's, documented in the Metro Greenprint...

Denver Radium Boom and the Colorado School of Mines

International Nuclear Information System (INIS)

Hart, S.S.

1986-01-01

The November 7, 1985, Rocky Mountain News, proclaimed Radiation hot spot detected at Mines. This hot spot discovery was the result of investigative reports by a local television station, with follow-up radiation monitoring by the Colorado Department of Health. Not an isolated occurrence of alpha and gamma radiation contamination, the School of Mines discovery is only the latest in a five-year series of discoveries of radioactive waste disposal sites in the Denver metropolitan area. These discoveries have involved not only the Colorado Department of Health, but also the Environmental Protection Agency, at least five consulting firms, and numerous businessmen and homeowners. In 1982, the sites were combined into a single project called the Denver Radium Site and selected for clean-up under the Federal Superfund program. This paper reviews the historical aspects of these hot spots by describing the history of radium processing in Denver; early work of the Colorado School of Mines, National Radium Institute, the Golden Experiment Station, and other institutional research; and the commercial production of radium. 20 references

Uranium hydrogeochemical and stream sediment reconnaissance of the Denver and Greeley NTMS Quadrangles, Colorado

International Nuclear Information System (INIS)

Bolivar, S.L.; Broxton, D.E.; Olsen, C.E.

1978-03-01

Although this report covers two National Topographic Map Series 2 0 quadrangles, the data for each quadrangle are presented separately. Evaluation of the data by quadrangle resulted in the delineation of areas in which water and/or sediment uranium concentrations are notably higher than surrounding background concentrations. The major clusters of anomalous water samples were found in areas of the Denver Basin underlain by the Pierre, Laramie, Fox Hills, Denver, and Arapahoe formations. Most of the anomalous sediment samples were collected in areas of the Front Range underlain by Precambrian crystalline rocks, particularly granites of the Silver Plume-Sherman group. Many of the anomalous sediment samples are from sites located near fault zones. The data in this report are also presented by geologic/physiographic province because background uranium concentrations in Front Range samples differ significantly from those in the Denver Basin. Denver Basin waters have higher mean uranium concentrations (mean 14.4 ppB) than Front Range waters (mean 3.3 ppB). Conversely, Front Range sediments are more uraniferous (mean 14.7 ppM) than those in the Denver Basin (mean 6.1 ppM). These differences in background uranium concentrations between Front Range and Denver Basin samples can be attributed to differences in regional geology, physiography, and (in the case of water) the ratio of surface water to ground water sites sampled. There is a significant northward increase in uranium concentrations in water samples from the Denver Basin. The higher uranium concentrations in water samples from the northern part of the basin are probably due to leaching of uraniferous strata in the Pierre and Laramie formations which crop out in that area

77 FR 23501 - Notice of Intent To Repatriate Cultural Item: University of Denver Department of Anthropology and...

Science.gov (United States)

2012-04-19

... Cultural Item: University of Denver Department of Anthropology and Museum of Anthropology, Denver, CO... Anthropology and Museum of Anthropology, in consultation with the appropriate Indian tribes, has determined... University of Denver Department of Anthropology and Museum of Anthropology. DATES: Representatives of any...

76 FR 9606 - Notice of Inventory Completion: Denver Museum of Nature & Science, Denver, CO

Science.gov (United States)

2011-02-18

...The Denver Museum of Nature & Science has completed an inventory of human remains, in consultation with the appropriate Indian Tribes, and has determined that there is no cultural affiliation between the remains and any present-day Tribe. Representatives of any Indian Tribe that believes itself to be culturally affiliated with the human remains may contact the museum. Disposition of the human remains to the Tribes stated below may occur if no additional requestors come forward.

76 FR 9598 - Notice of Inventory Completion: Denver Museum of Nature & Science, Denver, CO

Science.gov (United States)

2011-02-18

...The Denver Museum of Nature & Science has completed an inventory of human remains, in consultation with the appropriate Indian Tribes, and has determined that there is no cultural affiliation between the remains and any present-day Tribe. Representatives of any Indian Tribe that believes itself to be culturally affiliated with the human remains may contact the museum. Disposition of the human remains to the Tribes stated below may occur if no additional requestors come forward.

76 FR 9597 - Notice of Inventory Completion: Denver Museum of Nature & Science, Denver, CO

Science.gov (United States)

2011-02-18

...The Denver Museum of Nature & Science has completed an inventory of human remains, in consultation with the appropriate Indian Tribes, and has determined that there is no cultural affiliation between the remains and any present-day Tribe. Representatives of any Indian Tribe that believes itself to be culturally affiliated with the human remains may contact the museum. Disposition of the human remains to the Tribes stated below may occur if no additional requestors come forward.

76 FR 9604 - Notice of Inventory Completion: Denver Museum of Nature & Science, Denver, CO

Science.gov (United States)

2011-02-18

...The Denver Museum of Nature & Science has completed an inventory of human remains, in consultation with the appropriate Indian Tribes, and has determined that there is no cultural affiliation between the remains and any present-day Tribe. Representatives of any Indian Tribe that believes itself to be culturally affiliated with the human remains may contact the museum. Disposition of the human remains to the Tribes stated below may occur if no additional requestors come forward.

76 FR 5432 - United Western Bank Denver, Colorado; Notice of Appointment of Receiver

Science.gov (United States)

2011-01-31

... DEPARTMENT OF THE TREASURY Office of Thrift Supervision United Western Bank Denver, Colorado... section 5(d)(2) of the Home Owners' Loan Act, the Office of Thrift Supervision has duly appointed the Federal Deposit Insurance Corporation as sole Receiver for United Western Bank, Denver, Colorado, (OTS No...

Astronomy in Denver: Centenary of the 1918 total solar eclipse across Denver

Science.gov (United States)

Stencel, Robert E.

2018-06-01

Totality during the 2017 August 21 solar eclipse (Saros 145) traveled along a path across the United States similar to that which occurred for the eclipse on 1918 June 8 (Saros 126), but with a less west-northerly track. This placed Denver and its then new Chamberlin Observatory in the path of totality. Denver University astronomy Professor Herbert Howe offered use of the Chamberlin Observatory 20-inch f/15 refractor, with its Clark doublet lens and Saegmueller mounting, in service of eclipse-related research. In preparation for the eclipse, Professor Howe and assistants had spent the last three months of 1917, refurbishing mechanical aspects of the telescope. Edwin Frost, then Director of Yerkes Observatory expressed interest and made a reconnaissance visit to the area in September 1917, reporting results in the Feb. 1918 issue of Popular Astronomy ( http://adsabs.harvard.edu/abs/1918PA.....26R.103F ). Frank Schlesinger, then director of Allegheny Observatory, asked if he might attach a special camera for star photography to the telescope at the eclipse, to test displacement of stars, in order to test a prediction of relativity theory. Among the additional visiting astronomical luminaries present on that June day in 1918 were Annie J. Cannon (Harvard), John Duncan (Wellesley), Herbert R. Morgan (U.S. Naval Observatory) and Robert Trumpler (Berkeley). To learn the results of all this eclipse preparedness, you will need to attend my talk in order to get “the rest of the story” or visit our twitter feed at: https://twitter.com/Chamberlin_Obs .

Metro Manila: the urban challenge.

Science.gov (United States)

1987-06-01

Metro Manila is the commercial, industrial, financial, cultural and administrative center of the Philippines, and the world's 100 largest business corporations and 60% of all manufacturing firms. Experts predict that Metro Manila will continue to experience the surging population growth rate it recorded between 1980 and 1985 of about 3.4% annually and then decline to about 2% annually by the year 2000. Metro Manila's population is primarily young, with 35% of its total population under age 15. Although poverty is widespread in Metro Manila, with about 60% of households officially below the poverty line of a paltry $120 a month for a family of 6, Metro Manila still offers most interregional in-migrants a better life. The labor force participation rate has averaged around 54% annually in recent years. As in most cities of the developing world, manufacturing employment is giving way to service - sector employment. The dire need for adequate housing in Metro Manila cannot be overstated; although government spending on housing rose from 260 million to 1.1 billion pesos between 1978 and 1983, public investment could not keep up with the pressing demands of new family formation and in-migration. The most up-to-date analysis of Metro Manila demographics is Population Growth and Policies in Mega-Cities: Metro Manila, published by the UN in 1986.

Quality of groundwater in the Denver Basin aquifer system, Colorado, 2003-5

Science.gov (United States)

Musgrove, MaryLynn; Beck, Jennifer A.; Paschke, Suzanne; Bauch, Nancy J.; Mashburn, Shana L.

2014-01-01

Groundwater resources from alluvial and bedrock aquifers of the Denver Basin are critical for municipal, domestic, and agricultural uses in Colorado along the eastern front of the Rocky Mountains. Rapid and widespread urban development, primarily along the western boundary of the Denver Basin, has approximately doubled the population since about 1970, and much of the population depends on groundwater for water supply. As part of the National Water-Quality Assessment Program, the U.S. Geological Survey conducted groundwater-quality studies during 2003–5 in the Denver Basin aquifer system to characterize water quality of shallow groundwater at the water table and of the bedrock aquifers, which are important drinking-water resources. For the Denver Basin, water-quality constituents of concern for human health or because they might otherwise limit use of water include total dissolved solids, fluoride, sulfate, nitrate, iron, manganese, selenium, radon, uranium, arsenic, pesticides, and volatile organic compounds. For the water-table studies, two monitoring-well networks were installed and sampled beneath agricultural (31 wells) and urban (29 wells) land uses at or just below the water table in either alluvial material or near-surface bedrock. For the bedrock-aquifer studies, domestic- and municipal-supply wells completed in the bedrock aquifers were sampled. The bedrock aquifers, stratigraphically from youngest (shallowest) to oldest (deepest), are the Dawson, Denver, Arapahoe, and Laramie-Fox Hills aquifers. The extensive dataset collected from wells completed in the bedrock aquifers (79 samples) provides the opportunity to evaluate factors and processes affecting water quality and to establish a baseline that can be used to characterize future changes in groundwater quality. Groundwater samples were analyzed for inorganic, organic, isotopic, and age-dating constituents and tracers. This report discusses spatial and statistical distributions of chemical constituents

A laundry's reincarnation. Hospital Cooperative Laundry, Denver, CO.

Science.gov (United States)

1993-12-15

It started out as an off-site hospital laundry, then was leased to a commercial operator, now it is a cooperative plant that serves several accounts in the Denver area. See what makes Hospital Cooperative Laundry tick.

Books and Game-Review: Metro 2033 und Metro 2034 - von Dmitry Glukhovsky

OpenAIRE

Karl H. Stingeder

2013-01-01

Karl H. Stingeder rezensiert die beiden postapokalyptischen Romane Metro 2033 und Metro 2034 von Dmitry Glukhovsky, die auch in einer Spielversion auf den Markt gebracht wurden. Ein typischer Fall für unseren stellaren Spielexperten, der uns in die multimediale Welt der Science Fiction entführt.

Complex Network Analysis of Guangzhou Metro

Directory of Open Access Journals (Sweden)

Yasir Tariq Mohmand

2015-11-01

Full Text Available The structure and properties of public transportation networks can provide suggestions for urban planning and public policies. This study contributes a complex network analysis of the Guangzhou metro. The metro network has 236 kilometers of track and is the 6th busiest metro system of the world. In this paper topological properties of the network are explored. We observed that the network displays small world properties and is assortative in nature. The network possesses a high average degree of 17.5 with a small diameter of 5. Furthermore, we also identified the most important metro stations based on betweenness and closeness centralities. These could help in identifying the probable congestion points in the metro system and provide policy makers with an opportunity to improve the performance of the metro system.

Shortest-paths preserving metro maps

NARCIS (Netherlands)

Milea, T.Y.; Schrijvers, O.J.; Buchin, K.; Haverkort, H.J.; Kreveld, van M.J.; Speckmann, B.

2012-01-01

A metro map, or subway map, is a schematic representation of a metro system of a city. The main goal of a metro map is to provide a traveler with information on which lines to take to get from station A to station B, and at which stations he needs to switch lines. It is often not beneficial to use

Settlement Behaviors of Metro Tunnels during the Metro Operation

Directory of Open Access Journals (Sweden)

Wenbo Shi

2015-01-01

Full Text Available This paper investigates the settlement behaviors of a metro tunnel during metro operation. A nonlinear vibration model of vehicle-track is established, and a series of vibration loadings for the frequency domain acting on segments are obtained based on a modal analysis method and applying the Fourier transformation algorithm. The displacements at any position in the soil are derived from the segment-soil interaction coupled model with the elastic continuum theory, and its accuracy is verified by comparing with the calculation result obtained by elastic-plastic finite element model.

Great Expectations, Mixed Results: Standards and Performance in Denver's New Public Schools, 2007-2011

Science.gov (United States)

Ooms, Alexander

2012-01-01

In conjunction with the Denver Plan instituted in 2005, Denver Public Schools (DPS) has embarked upon a consistent strategy of opening new schools in an effort to improve overall academic performance. DPS has pursued this strategy under several different paths: an annual request for proposals from charter school applicants; allowing current…

Books and Game-Review: Metro 2033 und Metro 2034 - von Dmitry Glukhovsky

Directory of Open Access Journals (Sweden)

Karl H. Stingeder

2013-03-01

Full Text Available Karl H. Stingeder rezensiert die beiden postapokalyptischen Romane Metro 2033 und Metro 2034 von Dmitry Glukhovsky, die auch in einer Spielversion auf den Markt gebracht wurden. Ein typischer Fall für unseren stellaren Spielexperten, der uns in die multimediale Welt der Science Fiction entführt.

76 FR 14061 - Notice of Inventory Completion: Denver Museum of Nature & Science, Denver, CO

Science.gov (United States)

2011-03-15

...The Denver Museum of Nature & Science has completed an inventory of human remains and associated funerary objects, in consultation with the appropriate Indian tribes, and has determined that there is no cultural affiliation between the remains and associated funerary objects and any present-day Indian tribe. Representatives of any Indian tribe that believes itself to be culturally affiliated with the human remains and associated funerary objects may contact the museum. Disposition of the human remains and associated funerary objects to the Indian tribes stated below may occur if no additional requestors come forward.

Denver's Pioneer Astronomer: Herbert Alonso Howe (1858-1926)

Science.gov (United States)

Howe, H. J.; Stencel, R. E.; Fisher, S.

1999-05-01

Herbert A. Howe arrived at Denver University (DU) to teach autumn 1880 classes, in math, astronomy and surveying. Howe established himself with clever solutions to the Kepler problem for orbit determinations in thesis work at Cincinnati Observatory. Riding the economic expansion of Colorado gold and silver mining in 1888, the University accepted a proposed gift of a major observatory, offered by Denver real estate baron, Humphrey Chamberlin. The result features a 20 inch aperture Alvan Clark refractor, which still ranks among the largest telescopes of the era. With the observatory building ready, the Silver Panic of 1893 -- when the US Congress dropped silver reserves from the currency basis -- burst the Denver economic bubble. Chamberlin was unable to complete payments on the balances due. Clark and G.N.Saegmuller (Fauth and Co.) at personal expense, delivered on the optics and telescope assemblies in 1894, but would wait for repayment. Sadly, this fiscal crisis affected DU for over a decade. Professor Howe, while observatory director, found himself consumed as Dean and Acting Chancellor for a young, struggling university, at the expense of the astronomy future that had looked so bright in 1892. Absent the Silver Panic, Howe would have probably been given an endowed chair in astronomy, as promised by Chamberlin. The complexion of American astronomy at the time of the birth of the American Astronomical Society in 1899 might have been different, in terms of US observing sites, etc. We are fortunate to have extensive Prof.Howe's daily diaries now in the University archives. These describe Howe's view of progress on the observatory, meetings with astronomy notables, plus vignettes of the life and times of Denver and the nation. Grandson, Herbert Julian Howe rediscovered their existence and is summarizing them in the form of a biography entitled: The Pioneer Astronomer. DU archival records contain numerous original letters from late 19th century astronomy luminaries

El gran impacto del Metro

Directory of Open Access Journals (Sweden)

LOUIS DE GRANGE C

2010-04-01

Full Text Available Las grandes ciudades del mundo que han resuelto su problema de transporte público lo han logrado principalmente a la luz de las siguientes dos políticas públicas: una expansión significativa de la red de Metro y trenes urbanos, y una firme regulación en el uso del automóvil. La evidencia empírica a nivel mundial ha permitido constatar que la expansión de redes de Metro genera una reducción mucho más efectiva en el uso del transporte privado que otras medidas como por ejemplo subsidiar la tarifa del transporte público. Adicionalmente, la existencia de una importante red de Metro o trenes urbanos permite aumentar notablemente la efectividad de políticas regulatorias al uso del automóvil, como tarificación vial y gravámenes específicos, entre otras, ya que los automovilistas habituales sí ven en el Metro una alternativa real de transporte, no así en los servicios de buses.Large cities around the world that have successfully addressed their public transport problems have made it mainly through the folio wing two public policies: a significant expansion of the Metro or urban train networks, and a tight regulation of the use of automobiles. Empirical evidence worldwide shows that the expansion of the Metro network produces a much more effective reduction in the use of private transport than alternative policies as for instance subsidizing the tariff of public transport. Besides, the existence of an important Metro or urban train network enlarges the effectiveness of other regulatory policies to the use of automobile, as road pricing and specific taxes, since the users of automobiles see in Metro a reasonable alternative of transport, which is not the case for buses.

77 FR 5837 - Notice of Intent To Repatriate Cultural Items: University of Denver Department of Anthropology...

Science.gov (United States)

2012-02-06

... Cultural Items: University of Denver Department of Anthropology and Museum of Anthropology, Denver, CO... Anthropology and Museum of Anthropology, in consultation with the appropriate Indian tribes, has determined... Department of Anthropology and Museum of Anthropology. DATES: Representatives of any Indian tribe that...

Experience in Collaboration: McDenver at McDonald's.

Science.gov (United States)

Combs, Clarice Sue

2002-01-01

The McDenver at McDonald's project provided a nontraditional, community-based teaching and learning environment for faculty and students in a health, physical education, and recreation (HPER) department and a school of nursing. Children and parents come to McDonald's, children received developmental screenings, and parents completed conferences…

Superfund Record of Decision (EPA Region 8): Denver Radium Site Streets, Colorado, March 1986. Final report

International Nuclear Information System (INIS)

1986-01-01

Denver Radium Site Streets is located in Denver, Colorado. The operable unit is comprised of eight street segments in the Cheesman Park area and one segment in the upper downtown area. The nine contaminated street segments are owned by the City and County of Denver and extend approximately 4.5 miles through largely residential areas. The Denver Radium Site Streets contain a 4- to 6-inch layer of radium-contaminated asphalt. The contaminated layer is underlain by compacted gravel road base and is usually overlain by 4 to 12 inches of uncontaminated asphalt pavement. There is an estimated 38,500 cubic yards of contaminated material covering approximately 832,000 square feet. The selected remedial action for the site includes: leaving the contaminated material in place; improving institutional controls; and removing any contaminated material excavated during routine maintenance, repair, or construction activities in the affected streets to a facility approved for storage or disposal of contaminated material

PEMETAAN POTENSI BIOGAS DI KOTA METRO

Directory of Open Access Journals (Sweden)

Riswanto Riswanto

2017-09-01

Full Text Available Metro City is a developing city that attracts many new citizens to come and live in the city of Metro. It affects the density and population growth in the city of Metro so it boils down to the increasing need for energy for fuel such as gas and electricity needs. UU No. 33 of 2007 the government seeks to optimize the role of PEMDA and communities and academics to be able to take advantage of the various potential that may be developed in their respective city in meeting energy needs. The survey results show the picture that the city of Metro has potential in the utilization of biogas energy. The availability of this organic material is quite common in Metro city. But the availability of the material has not been classified in number and variety. For that, we need to do research in mapping biogas potential in every area in Metro city. The research method used is the method of documentation, observation, and interview. As for data analysis techniques, conducted qualitatively and quantitatively through the findings of observations in the form of descriptions, calculation analysis, and tabulation. The results obtained show that the North Metro sub-district has the highest potential for biogas development. The most common materials are animal waste derived from cow dung as much as 84% and biogas from plants that are from rice straw (54% and Tahu/tempe processing waste (38%. Other organic ingredients found are chicken, goat, buffalo, and banana peels. This result shows that the biogas potency of Metro City is best developed that is through the use of cow dung

77 FR 5839 - Notice of Intent To Repatriate a Cultural Item: University of Denver Department of Anthropology...

Science.gov (United States)

2012-02-06

... Cultural Item: University of Denver Department of Anthropology and Museum of Anthropology, Denver, CO... Anthropology and Museum of Anthropology, in consultation with the appropriate Indian tribes, has determined... of Anthropology and Museum of Anthropology. DATES: Representatives of any Indian tribe that believes...

Desempenho de crianças pré-termo com muito baixo peso e extremo baixo peso segundo o teste Denver-II The performance of pre-term children with very and extreme low weight according to the Denver-II test

Directory of Open Access Journals (Sweden)

Lívia de Castro Magalhães

2011-12-01

Full Text Available OBJETIVOS: analisar o desempenho de crianças da região metropolitana Belo Horizonte/MG nascidas pré-termo com muito e extremo baixo peso nos itens do teste Denver II. MÉTODOS: as crianças foram selecionadas em um programa de acompanhamento do desenvolvimento de crianças de risco. A amostra incluiu 177 crianças, nas quais o Teste de Denver II foi aplicado nas idades corrigidas de 4, 8, 12, 18 e 24 meses. As respostas foram comparadas (χ2 aos dados da amostra normativa do instrumento. RESULTADOS: crianças pré-termo de muito e extremo baixo peso apresentaram desempenho superior no primeiro ano de vida com desvantagem a partir dos 12 meses em relação à amostra normativa do Denver II. O grupo de extremo baixo peso foi o que apresentou pior desempenho. CONCLUSÕES: houve diferenças no padrão de respostas das crianças examinadas em relação à amostra normativa do Denver II, sendo importante fazer mais estudos acerca da validade do teste para a população brasileira.OBJECTIVES: to evaluate the performance on the Denver II test of preterm children with very and extreme low weight from the Belo Horizonte/MG metropolitan region. METHODS: the children were selected as part of a program to monitor the development of children at risk. The sample included 177 children, to whom the Denver II Test was applied at corrected ages of 4, 8, 12, 18 and 24 months. The responses were compared (χ2 to data from a normative sample. RESULTS: preterm children with very or extremely low weight showed improved performance in the first year of life, although disadvantages began to emerge after twelve months in relation to the normative Denver II sample. The extremely low weight group performed the worst. CONCLUSIONS: there were differences in the pattern of children's responses compared to those of the normative Denver II sample, and it is important to carry out further studies of the validity of this test for the Brazilian population.

Complex Network Analysis of Guangzhou Metro

OpenAIRE

Yasir Tariq Mohmand; Fahad Mehmood; Fahd Amjad; Nedim Makarevic

2015-01-01

The structure and properties of public transportation networks can provide suggestions for urban planning and public policies. This study contributes a complex network analysis of the Guangzhou metro. The metro network has 236 kilometers of track and is the 6th busiest metro system of the world. In this paper topological properties of the network are explored. We observed that the network displays small world properties and is assortative in nature. The network possesses a high average degree...

Denver Reengineers: By Relying More on Vendors and Technology, Jo Sarling Explains How the Denver Public Library Shifted Resources to the Public

Science.gov (United States)

Sarling, Jo

2005-01-01

This article gives details of the developments and changes in the Denver Public Library (DPL). Through a review of advancements in technology, vendor capabilities, staffing levels and talent, as well as outsourcing opportunities, DPL reinvented its workflow and processing. The result? The once giant stacks of books, CDs, videos, and DVDs waiting…

Metro orange line BRT project evaluation.

Science.gov (United States)

2011-10-01

In partnership with the Los Angeles County Metropolitan Transportation Authority (Metro) and the Federal Transit Administration (FTA), the National Bus Rapid Transit Institute (NBRTI) conducted an evaluation of the Metro Orange Line BRT service, whic...

Metro Navigation for the Blind

Science.gov (United States)

Sanchez, Jaime; Saenz, Mauricio

2010-01-01

This study evaluates the impact of using the software program AudioMetro, a tool that supports the orientation and mobility of people who are blind in the Metro system of Santiago de Chile. A quasi-experimental study considering experimental and control groups and using the paired Student's t in a two sample test analysis (pretest-posttest) was…

Theory Loves Practice: A Teacher Researcher Group

Science.gov (United States)

Hochtritt, Lisa; Thulson, Anne; Delaney, Rachael; Dornbush, Talya; Shay, Sarah

2014-01-01

Once a month, art educators from the Denver metro area have been gathering together in the spirit of inquiry to explore issues of the perceived theory and daily practice divide. The Theory Loves Practice (TLP) group was started in 2010 by Professors Rachael Delaney and Anne Thulson from Metropolitan State University of Denver (MSU) and now has 40…

Quantifying the robustness of metro networks

NARCIS (Netherlands)

Wang, X.; Koç, Y.; Derrible, S.; Nasir Ahmad, Sk.; Kooij, R.E.

2015-01-01

Metros (heavy rail transit systems) are integral parts of urban transportation systems. Failures in their operations can have serious impacts on urban mobility, and measuring their robustness is therefore critical. Moreover, as physical networks, metros can be viewed as network topological entities,

Patterns of facial trauma before and after legalization of marijuana in Denver, Colorado: A joint study between two Denver hospitals.

Science.gov (United States)

Sokoya, Mofiyinfolu; Eagles, Justin; Okland, Tyler; Coughlin, Dylan; Dauber, Hannah; Greenlee, Christopher; Winkler, Andrew A

2018-05-01

The effect of marijuana on human health has been studied extensively. Marijuana intoxication has been shown to affect performance, attention span, and reaction time. The public health relationship between trauma and cannabis use has also been studied, with mixed conclusions. In this report, the effect of marijuana legalization on many aspects of facial trauma at two hospitals in Denver, Colorado is examined. A retrospective review of the electronic medical records was undertaken. Mann-Whitney U tests were used to compare age of patients before and after legalization, and chi squared analyses were used to compare mechanism of injury, and fracture types before and after recreational marijuana legalization in Denver, Colorado. Geographical location of patients was also considered. No significant increase was found in race before and after marijuana legalization (p=0.19). A significant increase in age was found before (M=39.54,SD=16.37), and after (M=41.38,SD=16.66) legalization (p0.05). Public health efforts should be directed towards educating residents and visitors of Colorado on the effects and toxicology of marijuana. More epidemiologic studies are needed for further assessment of the long-term effects of the legalization of marijuana on the population. Copyright © 2017 Elsevier Inc. All rights reserved.

Comparison analysis on vulnerability of metro networks based on complex network

Science.gov (United States)

Zhang, Jianhua; Wang, Shuliang; Wang, Xiaoyuan

2018-04-01

This paper analyzes the networked characteristics of three metro networks, and two malicious attacks are employed to investigate the vulnerability of metro networks based on connectivity vulnerability and functionality vulnerability. Meanwhile, the networked characteristics and vulnerability of three metro networks are compared with each other. The results show that Shanghai metro network has the largest transport capacity, Beijing metro network has the best local connectivity and Guangzhou metro network has the best global connectivity, moreover Beijing metro network has the best homogeneous degree distribution. Furthermore, we find that metro networks are very vulnerable subjected to malicious attacks, and Guangzhou metro network has the best topological structure and reliability among three metro networks. The results indicate that the proposed methodology is feasible and effective to investigate the vulnerability and to explore better topological structure of metro networks.

Modeling metro users' travel behavior in Tehran: Frequency of Use

Directory of Open Access Journals (Sweden)

Amir Reza Mamdoohi

2016-10-01

Full Text Available Transit-oriented development (TOD, as a sustainable supporting strategy, emphasizes the improvement of public transportation coverage and quality, land use density and diversity of around public transportation stations and priority of walking and cycling at station areas. Traffic, environmental and economic problems arising from high growth of personal car, inappropriate distribution of land use, and car-orientation of metropolitan area, necessitate adoption of TOD. In recent years, more researches on urban development and transportation have focused on this strategy. This research considering metro stations as base for development, aims to model metro users' travel behavior and decision-making procedures. In this regard, research question is: what are the parameters or factors affecting in the frequency of travel by metro in half-mile radius from stations. The radius was determine based on TOD definitions and 5 minute walking time to metro stations.  A questionnaire was designed in three sections that including travel features by metro, attitudes toward metro, economic and social characteristics of respondents. Ten stations were selected based on their geographic dispersion in Tehran and a sample of 450 respondents was determined. The questionnaires were surveyed face to face in (half-mile vicinity of metro stations. Based on a refined sample on 400 questionnaires ordered discrete choice models were considered. Results of descriptive statistics show that 38.5 percent of the sample used metro more than 4 times per week. Trip purpose for 45.7 percent of metro users is work. Access mode to the metro stations for nearly half of the users (47.6 percent is bus. Results of ordered logit models show a number of significant variables including: habit of using the metro, waiting time in station, trip purpose (working, shopping and recreation, personal car access mode to the metro station, walking access mode to the metro station and being a housewife.

Geologic sources and concentrations of selenium in the West-Central Denver Basin, including the Toll Gate Creek watershed, Aurora, Colorado, 2003-2007

Science.gov (United States)

Paschke, Suzanne S.; Walton-Day, Katherine; Beck, Jennifer A.; Webbers, Ank; Dupree, Jean A.

2014-01-01

Toll Gate Creek, in the west-central part of the Denver Basin, is a perennial stream in which concentrations of dissolved selenium have consistently exceeded the Colorado aquatic-life standard of 4.6 micrograms per liter. Recent studies of selenium in Toll Gate Creek identified the Denver lignite zone of the non-marine Cretaceous to Tertiary-aged (Paleocene) Denver Formation underlying the watershed as the geologic source of dissolved selenium to shallow ground-water and surface water. Previous work led to this study by the U.S. Geological Survey, in cooperation with the City of Aurora Utilities Department, which investigated geologic sources of selenium and selenium concentrations in the watershed. This report documents the occurrence of selenium-bearing rocks and groundwater within the Cretaceous- to Tertiary-aged Denver Formation in the west-central part of the Denver Basin, including the Toll Gate Creek watershed. The report presents background information on geochemical processes controlling selenium concentrations in the aquatic environment and possible geologic sources of selenium; the hydrogeologic setting of the watershed; selenium results from groundwater-sampling programs; and chemical analyses of solids samples as evidence that weathering of the Denver Formation is a geologic source of selenium to groundwater and surface water in the west-central part of the Denver Basin, including Toll Gate Creek. Analyses of water samples collected from 61 water-table wells in 2003 and from 19 water-table wells in 2007 indicate dissolved selenium concentrations in groundwater in the west-central Denver Basin frequently exceeded the Colorado aquatic-life standard and in some locations exceeded the primary drinking-water standard of 50 micrograms per liter. The greatest selenium concentrations were associated with oxidized groundwater samples from wells completed in bedrock materials. Selenium analysis of geologic core samples indicates that total selenium

The Denver Federal Courthouse: Energy-efficiency in a new Federal building

Energy Technology Data Exchange (ETDEWEB)

Jacobs, P.C.; Holtz, M.J.; Digert, N.; Starkweather, S.; Porter, F.; Clevenger, C.

1999-07-01

The US Federal Courthouse Expansion in Denver, Colorado is twelve story, 16,112 m{sup 2} project to be constructed adjacent to several existing Courthouse and Federal buildings in downtown Denver. The project has been designated a sustainable design showcase by the General Services Administration, and additional funds were made available to the project for sustainable design features. The design achieves a high level of energy efficiency through a combination of strategies that seek first to reduce building lighting and HVAC loads as low as possible, and then satisfy the remaining, loads through a combination of state-of-the-art, high-efficiency mechanical, electrical, and renewable energy systems. The unique attributes of the Denver climate--sunny skies and low humidity, are utilized throughout the design to minimize energy consumption. The resulting building provides a visible expression of sustainability through the incorporation of a set of features that are designed to work together in an integrated energy-efficient building system. Careful life-cycle assessment of materials and building practices results in minimized use of natural resources as well as a healthier environment for the occupants. The use of local materials is emphasized and the building is designed to have a 100-year life. Issues addressed in material selection include sustainability, recyclability, toxicity, and maintenance. The criteria used to establish the success of the design are contained in the Leadership in Energy and Environmental Design (LEED) rating system. Although the building is currently entering final design, a LEED gold rating is expected.

77 FR 42510 - Notice of Inventory Completion: History Colorado, Denver, CO

Science.gov (United States)

2012-07-19

... associated funerary objects may contact History Colorado. Disposition of the human remains and associated... human remains and associated funerary objects under the control of History Colorado, Denver, CO. One set... detailed assessment of the human remains and associated funerary objects was made by History Colorado...

Confiabilidade intra e interexaminadores e erro da medição no uso do goniômetro e inclinômetro digital

Directory of Open Access Journals (Sweden)

Carolline Maciel dos Santos

2012-02-01

Full Text Available INTRODUÇÃO: A amplitude de movimento articular (ADM é um importante componente avaliado durante o exame físico; porém, para que essa mensuração possa ser utilizada, é necessário que ela seja confiável e que suas propriedades de medida sejam conhecidas. OBJETIVOS: Verificar a confiabilidade inter e intraexaminadores das medidas realizadas pelo goniômetro e inclinômetro na avaliação da ADM de flexão e extensão de joelho e cotovelo, e determinar o erro padrão da medição (EPM dos instrumentos em questão. MÉTODOS: Foi avaliada ADM de flexão e extensão de cotovelo e joelho, bilateralmente, de uma amostra de indivíduos jovens saudáveis do gênero masculino, com faixa etária entre 18 e 30 anos, utilizando um inclinômetro digital e um goniômetro universal. RESULTADOS: A confiabilidade interexaminador variou de pequena a muito alta para os dois instrumentos, apresentando CCI de 0,24 a 0,96 para as medidas feitas com o goniômetro, e de 0,02 a 0,98 para o inclinômetro. O único movimento que obteve confiabilidade muito alta para ambos os aparelhos e examinadores foi a flexão de joelho. O EPM determinado por meio da goniometria e inclinometria variou entre 0,21 e 12,75 graus. CONCLUSÃO: O inclinômetro digital apresenta melhores índices de confiabilidade que o goniômetro para as medidas de ADM. Apenas quatro medidas obtiveram CCI alto e EPM abaixo de dois graus, e, assim, foram consideradas apropriadas para serem utilizadas clinicamente, todas essas realizadas com o inclinômetro.

Air quality inside subway metro indoor environment worldwide: A review.

Science.gov (United States)

Xu, Bin; Hao, Jinliang

2017-10-01

The air quality in the subway metro indoor microenvironment has been of particular public concern. With specific reference to the growing demand of green transportation and sustainable development, subway metro systems have been rapidly developed worldwide in last decades. The number of metro commuters has continuously increased over recent years in metropolitan cities. In some cities, metro system has become the primary public transportation mode. Although commuters typically spend only 30-40min in metros, the air pollutants emitted from various interior components of metro system as well as air pollutants carried by ventilation supply air are significant sources of harmful air pollutants that could lead to unhealthy human exposure. Commuters' exposure to various air pollutants in metro carriages may cause perceivable health risk as reported by many environmental health studies. This review summarizes significant findings in the literature on air quality inside metro indoor environment, including pollutant concentration levels, chemical species, related sources and health risk assessment. More than 160 relevant studies performed across over 20 countries were carefully reviewed. These comprised more than 2000 individual measurement trips. Particulate matters, aromatic hydrocarbons, carbonyls and airborne bacteria have been identified as the primary air pollutants inside metro system. On this basis, future work could focus on investigating the chronic health risks of exposure to various air pollutants other than PM, and/or further developing advanced air purification unit to improve metro in-station air quality. Copyright © 2017 Elsevier Ltd. All rights reserved.

Evaluation of a marketing program designed to increase consumer consideration of energy-efficient products in Denver, Colorado

Energy Technology Data Exchange (ETDEWEB)

1978-08-01

A demonstration marketing program to sensitize Denver homeowners to incorporate the energy cost of ownership orientation in their decision process regarding purchase of energy-efficient products is described. Personal interviews with Denver homeowners were conducted. A first survey established a baseline for consumer awareness and acceptance of energy conservation and conservation-related products and provided information which could be utilized in developing marketing strategies related to energy conservation and the concept of energy cost of ownership. A second survey measured shifts in awareness and attitudes which might have occurred as a result of the marketing demonstration program. The methodology and results of the evaluation are discussed in detail. The Denver Test Market Media Campaign conducted through multi-media advertising and public relations campaigns to sensitize the residents to the positive consideraton of energy-efficient products is described. (MCW)

77 FR 13629 - Notice of Inventory Completion: History Colorado, Denver, CO

Science.gov (United States)

2012-03-07

... Fort Hall Reservation of Idaho; and the Zuni Tribe of the Zuni Reservation, New Mexico. History and...: History Colorado, Denver, CO AGENCY: National Park Service, Interior. ACTION: Notice. SUMMARY: History... human remains may contact History Colorado. Disposition of the human remains to the Indian tribes stated...

Implementation of the Early Start Denver Model in an Italian Community

Science.gov (United States)

Colombi, Costanza; Narzisi, Antonio; Ruta, Liliana; Cigala, Virginia; Gagliano, Antonella; Pioggia, Giovanni; Siracusano, Rosamaria; Rogers, Sally J.; Muratori, Filippo

2018-01-01

Identifying effective, community-based specialized interventions for young children with autism spectrum disorder is an international clinical and research priority. We evaluated the effectiveness of the Early Start Denver Model intervention in a group of young children with autism spectrum disorder living in an Italian community compared to a…

77 FR 13627 - Notice of Inventory Completion: History Colorado, Denver, CO

Science.gov (United States)

2012-03-07

... History Colorado by the Denver Medical Examiner's Office. They are identified as OAHP Case Number 128. There is no information available as to where or how the remains were recovered. The medical examiner...); Paiute Indian Tribe of Utah (Cedar Band of Paiutes, Kanosh Band of Paiutes, Koosharem Band of Paiutes...

World Renewable Energy Congress - To Be Held In Denver In 1996

Science.gov (United States)

) announced today that they will host the World Renewable Energy Congress IV in Denver from June 15-21, 1996 to be held outside of the United Kingdom. The World Renewable Energy Congress, which meets every two include world leaders in renewable energy, banking and business. The Congress' objectives are to support

Electronic Book Usage: A Survey at the University of Denver

Science.gov (United States)

Levine-Clark, Michael

2006-01-01

In the spring of 2005, the University of Denver's Penrose Library conducted a survey of its users to determine their degree of awareness of electronic books, how and why they use them, and their level of satisfaction with the format. It is clear from vendor-supplied usage statistics that electronic books are used, but it is not clear how or why…

Prácticas de Física: Resistencia de un voltímetro

OpenAIRE

Beléndez, Augusto; Bernabeu, Guillermo; Vera Guarinos, Jenaro; Pastor Antón, Carlos; Martín García, Agapito

1988-01-01

El objetivo de esta práctica es determinar la resistencia interna de un voltímetro. Para ello se utilizan varias resistencias de valor conocido. El voltímetro es un aparato que sirve para medir la diferencia de potencial entre dos puntos de un circuito. Los voltímetros de aguja se basan en el mismo principio que el amperímetro de aguja, pues ambos se pueden construir mediante un galvanómetro de cuadro móvil, pero en el caso del voltímetro se monta en serie con el galvanómetro una resistencia ...

The Denver region traffic signal system improvement program : planning for management and operations

Science.gov (United States)

2009-04-01

The Denver Regional Council of Governments (DRCOG) works with over 30 local jurisdictions on the Traffic Signal System Improvement Program (TSSIP), a combination of management and operations strategies designed to time and coordinate traffic signals ...

Reducing lighting electricity use in underground metro stations

International Nuclear Information System (INIS)

Casals, Miquel; Gangolells, Marta; Forcada, Núria; Macarulla, Marcel

2016-01-01

Highlights: • Lighting systems are big energy consumers in underground metro stations. • An adaptive lighting system strategy is developed for underground stations. • Dimming controls are based on station occupancy levels and maintenance cycles. • The k-means clustering technique is used to identify stations’ occupancy patterns. • Savings were found to amount to 255.47 MW h in 2 years for a case study metro network. - Abstract: Lighting systems are usually one of the largest electrical end-uses in underground metro stations. Taking into account that budget restrictions in publicly owned companies hinder energy efficiency retrofit projects that require high initial investments, affordable energy saving strategies are needed. This paper presents a low-cost approach for reducing lighting electricity use in underground stations, without affecting passengers’ comfort or the metro operator’s service. For this purpose, an adaptive lighting strategy of dimming the illuminance levels of artificial light sources has been developed. Dimming controls are based on the occupancy of the station, and the preventive maintenance and cleaning cycles of the luminaires. The stations’ monthly occupancy patterns are defined through the k-means clustering technique. To illustrate its effectiveness, the method was applied to 115 underground stations of the Barcelona metro network. The results revealed overall electricity savings of 255.47 MW h on a biannual basis, which represents 36.22% of the stations’ baseline lighting consumption. Individual energy savings were found to range from 25 to 87.5 MW h/year in the stations of the Barcelona metro network, depending on the number and profile of station users. The research findings will undoubtedly be useful for the future energy efficiency project plans of worldwide metro operators and managers of other underground spaces.

Radon exposure of passengers in the Prague metro

International Nuclear Information System (INIS)

Sabol, J.

1996-01-01

This paper summarises the results of radon concentration monitoring in the carriages and at some stations of the Prague Metro network. The measurements revealed that radon levels in the Metro are relatively low in comparison to those normally encountered in dwellings in the Prague region. On average, the radon concentrations in the air inside the carriages have been found to be about 11 - 12 Bq m -3 while the levels at most stations reached values between 10 and 15 Bq m -3 . The Metro is intensively ventilated by means of powerful blowers and fans; the piston effect of the moving trains also contributes to air exchange. The ventilation rate is typically 3-4 h -1 . The highest rate is in line C, where the air in all underground areas is completely exchanged 6 times within each hour. These results demonstrate that Metro passengers receive about the same effective dose as passengers using surface transport. The doses from radon in the metro are only slightly higher than radon-related doses in the open air, while exposure due to external photon radiation seems to be a few percent lower than dose rates common in typical Czech houses. (author)

Analisis Pendapatan dan Kesejahteraan Produsen Jamur Tiram di Kota Metro

OpenAIRE

Mitha, Silvya Dara; Haryono, Dwi; Rosanti, Novi

2015-01-01

The purposes of this research are to: (1) determine income oyster mushroom producer in Metro City, (2) determine welfare level of oyster mushroom producer in Metro City. This experiment was conducted in Metro City that was chosen by purposive in December 2013 until May 2014. It was considered that the Metro City has high enough in producing the oyster mushroom. This study takes 42 producers. This study used a census method with qualitative and quantitative analysis. Analysis of the data us...

Potential Influence of Metro on Bus: A Case Study

Science.gov (United States)

Selvakumar, M.; Abishek Reddy, M.; Sathish, V.; Venkatesh, R.

2018-06-01

A modal shift occurs when one mode of transport has a comparative advantage in a similar market over another. The present work concerns with the development of modal shift model for urban travel in Chennai, India. The modal shift model was calibrated using binary logit technique and validated using hold-out sample method. The validated model was used to predict the probability of shift in selected corridor. The recent introduction of metro rail in Chennai has lead to an increasing competition among public transport modes. To study the influence of metro on bus transport, a Stated Preference (SP) survey was conducted among express bus travellers. Using the SP survey data, a modal shift model was calibrated to estimate the plausible shift from bus to metro. Results indicate that variables like fare- difference, age, and income play an important role in the shift behaviour. When metro fare increases with respect to express bus fare, bus passengers are less willing to use metro and vice-versa.

Potential Influence of Metro on Bus: A Case Study

Science.gov (United States)

Selvakumar, M.; Abishek Reddy, M.; Sathish, V.; Venkatesh, R.

2018-03-01

A modal shift occurs when one mode of transport has a comparative advantage in a similar market over another. The present work concerns with the development of modal shift model for urban travel in Chennai, India. The modal shift model was calibrated using binary logit technique and validated using hold-out sample method. The validated model was used to predict the probability of shift in selected corridor. The recent introduction of metro rail in Chennai has lead to an increasing competition among public transport modes. To study the influence of metro on bus transport, a Stated Preference (SP) survey was conducted among express bus travellers. Using the SP survey data, a modal shift model was calibrated to estimate the plausible shift from bus to metro. Results indicate that variables like fare-difference, age, and income play an important role in the shift behaviour. When metro fare increases with respect to express bus fare, bus passengers are less willing to use metro and vice-versa.

In vitro efficacy of a novel chemoradiopotentiator-taxoltere metro

International Nuclear Information System (INIS)

Yang Lixi; Wang Huijuan; Holton, Robert A.

2000-01-01

Purpose: To evaluate the in vitro cytotoxic and radiopotentiating effects of a novel paclitaxel analog (taxoltere metro) on Chinese hamster ovary (CHO) cells and human colon cancer cells. Methods and Materials: Three cell lines (CHO cells, HCT116 human colon carcinoma cells [paclitaxel-sensitive], and VM46 cells [paclitaxel-resistant subline of HCT116]) were employed in this study. Cell survival was determined using the standard colony-forming assay. The ID 50 value (drug concentrations required to reduce colony formation to 50% of the control value) was determined as a cytotoxic index from each cell survival curve. The sensitizer enhancement ratio (SER) as a radiopotentiating endpoint was determined as the ratio of the D 0 values (with or without drugs) under hypoxic or air conditions. Results: Taxoltere metro was 5-15 times more effective in killing CHO cells than paclitaxel under both hypoxic and euoxic treatment conditions. Cytocidal effects of taxoltere metro on HCT116 cells and VM46 cells were 28 and 70 times higher than those of paclitaxel (p < 0.001), respectively. Taxoltere metro also produced significant radiopotentiating effects on euoxic CHO and HCT116 cells, but not on hypoxic cells. The SER value of taxoltere metro for CHO cells was about 2.3 at a dose of 100 nM. With HCT116 cells, taxoltere metro yielded an SER of 1.2 at the low dose of 10 nM. In contrast, the parent compound paclitaxel yielded little or no radiosensitization with either CHO or HCT116 cells. Conclusion: The results demonstrate that taxoltere metro is significantly more potent than paclitaxel in chemoradiopotentiating CHO cells and HCT116 human colon carcinoma cells. The data strongly suggest that taxoltere metro could be a promising chemoradiopotentiating agent for treatment of cancer

Community-Based Investigation of Radon and Indoor Air Quality in Northeast Denver Neighborhoods

Science.gov (United States)

Pfotenhauer, D.; Iwasaki, P. G.; Ware, G. E.; Collier, A.; Hannigan, M.

2017-12-01

In 2015, Taking Neighborhood Health to Heart (TNH2H), a community-based organization based in Northeast Denver, and researchers from the University of Colorado, Boulder jointly piloted a project to investigate indoor air quality within Denver communities. This pilot study was carried out across 2015-2016 and found higher than actionable-levels for radon across a majority of its participants. These results inspired a continued collaboration between the community group and academic researchers from CU Boulder. The partnership went on to conduct a similar project this last year in which the team again employed a community-based participatory research (CBPR) framework to investigate indoor air pollutants across a broader geographical footprint in Denver's Northeast Neighborhoods. The collaboration sampled 30 participant houses across 5 neighborhoods for radon and volatile organic compounds (VOCs). Although VOC levels were found to be well under thresholds for concern, for the second year of this investigation, radon levels were found on average to be significantly above the EPA's threshold for hazardous levels. Additionally, in collecting survey data on the participants' house characteristics, certain identifiable trends emerged that signal which house types have greater risk of radon intrusion. Having found in two consecutive studies that a majority of homes in these neighborhoods are burdened with dangerous levels of radon, the partnership is now moving towards developing educational and political actions to address the results from these projects and disseminate the information regarding radon levels and threats to these neighborhood communities.

South Platte Watershed from the Headwaters to the Denver Metropolitan Area (Colorado) Systems Thinking

Science.gov (United States)

South Platte Watershed from the Headwaters to the Denver Metropolitan Area (Colorado) of the Urban Waters Federal Partnership (UWFP) reconnects urban communities with their waterways by improving coordination among federal agencies and collaborating

An Evaluation of the Research Evidence on the Early Start Denver Model

Science.gov (United States)

Baril, Erika M.; Humphreys, Betsy P.

2017-01-01

The Early Start Denver Model (ESDM) has been gaining popularity as a comprehensive treatment model for children ages 12 to 60 months with autism spectrum disorders (ASD). This article evaluates the research on the ESDM through an analysis of study design and purpose; child participants; setting, intervention agents, and context; density and…

The Early Start Denver Model: A Case Study of an Innovative Practice

Science.gov (United States)

Vismara, Laurie A.; Rogers, Sally J.

2008-01-01

Intervention was implemented with an infant identified at 9 months of age with a behavioral profile consistent with autistic spectrum disorder. The intervention approach, the Early Start Denver model, consisted of a 12-week, 1.5-hr-per-week individualized parent-child education program. Results of this case study demonstrated that the parent…

Elasticidad precio de la demanda y perfil de los usuarios de la parada “Pablo de Olavide" de Metro de Sevilla || Price Elasticity of Demand and Profile of “Pablo de Olavide" Metro Stop's Users of Seville Metro

Directory of Open Access Journals (Sweden)

Hernández-Díaz, Alfredo G.

2014-06-01

Full Text Available En el presente trabajo mostramos los resultados más relevantes obtenidos en un proceso de encuestación a 300 usuarios de la estación “Pablo de Olavide" del metro de Sevilla. El objetivo del trabajo es doble: por un lado, analizar el perfil del usuario (motivaciones por las que usan el metro, intermodalidad y flujos; mientras que, por otro lado, a partir de las disposiciones a pagar con respecto a posibles incrementos en el precio del servicio, estimamos parcialmente la elasticidad precio de la demanda para esta población objetivo tan concreta. El perfil tan específico de los usuarios de dicha parada así como las características propias del metro de Sevilla explican algunos de los resultados obtenidos esperando ayuden a los gestores y administradores de Metro de Sevilla en la toma de decisiones. || In this paper the most relevant results obtained in a survey conducted by 300 users of the “Pablo de Olavide" Seville metro stop are presented. The aim of the paper is twofold. On the one hand, the user profile is analysed: motivations for using the subway, intermodality and ows, whereas, on the other hand, the price elasticity of demand is partially computed by means of the willingness to pay for that specic user profile. In fact, both the particular user profile and Seville metro's characteristics explain some of the obtained results that hopefully will help managers of Seville Metro in making decisions.

Denver's airport of doom; the story behind the world's possibly most controversial airport

NARCIS (Netherlands)

Stolwijk, J.

2014-01-01

Big airport projects have often been prone to controversy. Schiphol’s Polderbaan project, Heathrow’s expansion, and the construction of Berlin’s new airport all suffered from political, financial or technical issues. However, Denver International Airport (often referred to as DIA) caused uproar in

An energy-efficient metro speed profiles for energy savings: application to the Valencia metro

Energy Technology Data Exchange (ETDEWEB)

Villalba Sanchis, I.; Salvador Zuriaga, P.

2016-07-01

Nowadays one of the main priorities for metro line operators is the reduction of energy consumption, due to the environmental impact and economic cost. In order to achieve this objective different strategies can be applied, normally focused into rolling stock, infrastructure and/or operation. Considering short-term measures and related to the traffic operation strategies, different approaches are being researched. One of the most effective strategy which reduce net energy consumption is the use of efficient driving techniques. These techniques produces a speed profile between two stations that requires the minimum net energy consumption, without degrading commercial running times or passenger comfort. In this paper, a computer model for calculating the metro vehicles speed profiles minimizing the energy consumption was developed. The equations considered in the model represent the behavior of a single vehicle operated under manual driving, subject to different constraints such as the headway, cycle time, distances and acceleration limits. The proposed model calculates different commands to be systematically executed by the driver. The resulting simulator has been tuned by means of on board measurements of speed, accelerations and energy consumption obtained along different lines in Metro de Valencia network. For this purpose, different scenarios are analyzed to assess the achievable energy savings. In general terms and comparing with the actual energy consumption, the solutions proposed can reduce the net energy consumption around 19%. (Author)

Medición comparativa de la densidad urinaria: tira reactiva, refractómetro y densímetro

OpenAIRE

Costa, Christian Elías; Bettendorff, Carolina; Bupo, Sol; Ayuso, Sandra; Vallejo, Graciela

2010-01-01

Introducción. La densidad urinaria se utiliza en la clínica para evaluar la capacidad renal de concentrar y diluir la orina. Se puede medir mediante tres métodos: urodensímetro (UD), refractómetro (RE) y tiras reactivas (TR). Objetivo. Evaluar la exactitud de diferentes métodos de medición de la densidad urinaria. Diseño del estudio. Transversal, comparativo, con recolección prospectiva de datos. Material y métodos. Se analizaron 156 muestras de orina de pacientes pediátricos, durante abril y...

Importancia y utilidad del test de Denver para la valoración del desarrollo de los niños colombianos

Directory of Open Access Journals (Sweden)

Rubiano Luz Marina C. de

1992-06-01

Full Text Available

Este artículo se ha escrito teniendo en cuenta la experiencia docente de 17 años en las universidades del Valle, Nacional, Escuela Colombiana de Medicina, y otras universidades de Centroamérica; con estudiantes de enfermería y medicina de pregrado y postgrado, aplicando el  test de Denver para la valoración del niño menor de 6 años. El test de Denver fue elaborado en el año de 1967 por un grupo de investigadores del Centro Médico de la Universidad de Colorado en Denver, Colorado EE.UU., y se basó en la observación de 1.000 niños normales de O a 6 años para ver a qué edades realizaban las actividades correspondientes.

An application of the graph theory which examines the metro networks

Directory of Open Access Journals (Sweden)

Svetla STOILOVA

2015-06-01

Full Text Available The graph theory gives a mathematical representation of transport networks and allows us to study their characteristics effectively. A research of the structure of metro system has been conducted in the study by using the graph theory. The study includes subway systems of 22 European capitals. New indicators have been defined in the research such as a degree of routing, a connectivity of the route, average length per link (which takes into account the number of routes, intensity of the route, density of the route. The new and the existing indicators have been used to analyze and classify the metro networks. The statistical method cluster analysis has been applied to classify the networks. Ten indicators have been used to carry out an analysis. The metro systems in European capitals have been classified in three clusters. The first cluster includes large metro systems, the second one includes small metro networks whereas the third cluster includes metro networks with only one line. The combination of both two methods has been used for the first time in this research. The methodology could be used to evaluate other existing metro networks as well as for preliminary analysis in the design of subway systems.

FIDEDIGNIDADE DA CORRIDA DE 1000 METROS PARA ESPAÇO REDUZIDO

Directory of Open Access Journals (Sweden)

Marilia do Rosso Krug

2008-07-01

Full Text Available Este estudo teve como objetivo estabelecer a fidedignidade do teste de corrida de 1000 metros, padronizado por KLISSOURAS (1973, para espaço reduzido. A amostra foi constituída aleatoriamente de 240 escolares, sendo 120 escolares de cada sexo, e 30 escolares por idade e sexo, nas faixas etárias de 9 a 12 anos, matriculados nas escolas da rede municipal de ensino, da zona urbana, da cidade de Pelotas, RS. O peso corporal foi medido através de uma balança de alavanca e a estatura pelo estadiômetro. Utilizou-se o teste de corrida de 1000 metros, padronizado por KLISSOURAS (1973, para medir a potência aeróbica. Obteve-se correlação positiva significativa entre os resultados do teste de corrida de 1000 metros realizados em pista de atletismo com o de espaço reduzido (configuração oval. Conclui-se que na falta da pista de atletismo, pode-se realizar o teste de corrida de 1000 metros em espaço reduzido (configuração oval.

Passive solar ranch house for the mass market

Energy Technology Data Exchange (ETDEWEB)

Albanes, M.N.

1981-01-01

To promote the building of passive solar housing in the Denver metropolitan area, a solar ranch style house was designed for a builder, Unique Homes, as part of a group of thirteen passive solar houses built for the mass market under SERI's Denver Metro Home Builders Program. The project, process of design, thermal performance analysis, cost and consumer/media response are reviewed. The final design was a direct gain, attached greenhouse system that used brick as interior mass.

78 FR 50095 - Notice of Inventory Completion: History Colorado, Formerly Colorado Historical Society, Denver, CO

Science.gov (United States)

2013-08-16

... Mountain Reservation, Colorado, New Mexico & Utah may proceed. History Colorado is responsible for....R50000] Notice of Inventory Completion: History Colorado, Formerly Colorado Historical Society, Denver, CO AGENCY: National Park Service, Interior. ACTION: Notice. [[Page 50096

Early Start Denver Model for Young Children with Autism: Promoting Language, Learning, and Engagement

Science.gov (United States)

Rogers, Sally J.; Dawson, Geraldine

2009-01-01

From leading authorities, this state-of-the-art manual presents the Early Start Denver Model (ESDM), the first comprehensive, empirically tested intervention specifically designed for toddlers and preschoolers with autism. Supported by the principles of developmental psychology and applied behavior analysis, ESDM's intensive teaching interventions…

Analysis of factors influencing safety management for metro construction in China.

Science.gov (United States)

Yu, Q Z; Ding, L Y; Zhou, C; Luo, H B

2014-07-01

With the rapid development of urbanization in China, the number and size of metro construction projects are increasing quickly. At the same time, and increasing number of accidents in metro construction make it a disturbing focus of social attention. In order to improve safety management in metro construction, an investigation of the participants' perspectives on safety factors in China metro construction has been conducted to identify the key safety factors, and their ranking consistency among the main participants, including clients, consultants, designers, contractors and supervisors. The result of factor analysis indicates that there are five key factors which influence the safety of metro construction including safety attitude, construction site safety, government supervision, market restrictions and task unpredictability. In addition, ANOVA and Spearman rank correlation coefficients were performed to test the consistency of the means rating and the ranking of safety factors. The results indicated that the main participants have significant disagreement about the importance of safety factors on more than half of the items. Suggestions and recommendations on practical countermeasures to improve metro construction safety management in China are proposed. Copyright © 2013 Elsevier Ltd. All rights reserved.

Superfund Record of Decision (EPA Region 8): Denver Radium/Card Corporation Property, Colorado (third remedial action), June 1987. Final report

International Nuclear Information System (INIS)

1987-01-01

The Denver Radium/Card Corporation property is a 17.2-acre site located in Denver, Colorado. In 1979, the EPA discovered a reference to the National Radium Institute in 1916 U.S. Bureau of Mines report. Subsequent field research revealed the presence of thirty-one radioactive sites in the Denver Metropolitan area, one of these being Card property, the location of the original Pittsburgh Radium Company processing facility. The site consists of five buildings and an oil and waste water pond at the eastern boundary. There is no serious public health risk at present from radium or its decay products, most notable radion gas. However, there is the potential for increased public health risk if the radium contaminated materials are misused or inadvertently spread. Currently, radium has been detected in the soil, sediment, and underneath the True Truss building. EPA's preferred remedial action for the Card property is permanent offsite disposal. However, the alternative can not be implemented until a suitable offsite facility is designated

Metro nature, environmental health, and economic value.

Science.gov (United States)

Wolf, Kathleen L; Robbins, Alicia S T

2015-05-01

Nearly 40 years of research provides an extensive body of evidence about human health, well-being, and improved function benefits associated with experiences of nearby nature in cities. We demonstrate the numerous opportunities for future research efforts that link metro nature, human health and well-being outcomes, and economic values. We reviewed the literature on urban nature-based health and well-being benefits. In this review, we provide a classification schematic and propose potential economic values associated with metro nature services. Economic valuation of benefits derived from urban green systems has largely been undertaken in the fields of environmental and natural resource economics, but studies have not typically addressed health outcomes. Urban trees, parks, gardens, open spaces, and other nearby nature elements-collectively termed metro nature-generate many positive externalities that have been largely overlooked in urban economics and policy. Here, we present a range of health benefits, including benefit context and beneficiaries. Although the understanding of these benefits is not yet consistently expressed, and although it is likely that attempts to link urban ecosystem services and economic values will not include all expressions of cultural or social value, the development of new interdisciplinary approaches that integrate environmental health and economic disciplines are greatly needed. Metro nature provides diverse and substantial benefits to human populations in cities. In this review, we begin to address the need for development of valuation methodologies and new approaches to understanding the potential economic outcomes of these benefits.

Summary and evaluation of the quality of stormwater in Denver, Colorado, 2006-2010

Science.gov (United States)

Stevens, Michael R.; Slaughter, Cecil B.

2012-01-01

Stormwater in the Denver area was sampled by the U.S. Geological Survey, in cooperation with the Urban Drainage and Flood Control District, in a network of 5 monitoring stations - 3 on the South Platte River and 2 on streams tributary to the South Platte River, Sand Creek, and Toll Gate Creek beginning in January 2006 and continuing through December 2010. Stormwater samples were analyzed at the U.S. Geological Survey National Water Quality Laboratory during 2006-2010 for water-quality properties such as pH, specific conductance, hardness, and residue on evaporation at 105 degrees Celsius; for constituents such as major ions (calcium, magnesium), organic carbon and nutrients, including ammonia plus organic nitrogen, ammonia, dissolved nitrite plus nitrate, total phosphorus, and orthophosphate; and for metals, including total recoverable and dissolved phases of copper, lead, manganese, and zinc. Samples collected during selected storms were also analyzed for bacteriological indicators such as Escherichia coli and fecal coliform at the Metro Wastewater Reclamation Laboratory. About 200 stormwater samples collected during storms characterize the quality of storm runoff during 2006-2010. In general, the quality of stormwater (2006-2010) has improved for many water-quality constituents, many of which had lower values and concentrations than those in stormwater collected in 2002-2005. However, the physical basis, processes, and the role of dilution that account for these changes are complex and beyond the scope of this report. The water-quality sampling results indicate few exceptions to standards except for dissolved manganese, dissolved zinc, and Escherichia coli. Stormwater collected at the South Platte River below Union Avenue station had about 10 percent acute or chronic dissolved manganese exceedances in samples; samples collected at the South Platte River at Denver station had less than 5 percent acute or chronic dissolved manganese exceedances. In contrast

Street floods in Metro Manila and possible solutions.

Science.gov (United States)

Lagmay, Alfredo Mahar; Mendoza, Jerico; Cipriano, Fatima; Delmendo, Patricia Anne; Lacsamana, Micah Nieves; Moises, Marc Anthony; Pellejera, Nicanor; Punay, Kenneth Niño; Sabio, Glenn; Santos, Laurize; Serrano, Jonathan; Taniza, Herbert James; Tingin, Neil Eneri

2017-09-01

Urban floods from thunderstorms cause severe problems in Metro Manila due to road traffic. Using Light Detection and Ranging (LiDAR)-derived topography, flood simulations and anecdotal reports, the root of surface flood problems in Metro Manila is identified. Majority of flood-prone areas are along the intersection of creeks and streets located in topographic lows. When creeks overflow or when rapidly accumulated street flood does not drain fast enough to the nearest stream channel, the intersecting road also gets flooded. Possible solutions include the elevation of roads or construction of well-designed drainage structures leading to the creeks. Proposed solutions to the flood problem of Metro Manila may avoid paralyzing traffic problems due to short-lived rain events, which according to Japan International Cooperation Agency (JICA) cost the Philippine economy 2.4billionpesos/day. Copyright © 2017. Published by Elsevier B.V.

78 FR 19296 - Notice of Inventory Completion: History Colorado, formerly Colorado Historical Society, Denver, CO

Science.gov (United States)

2013-03-29

... Reservation, Colorado, New Mexico & Utah agreed to accept disposition of the human remains. In 2006, History....R50000] Notice of Inventory Completion: History Colorado, formerly Colorado Historical Society, Denver, CO AGENCY: National Park Service, Interior. ACTION: Notice. SUMMARY: History Colorado, formerly...

Metro manila transport and traffic management plan (1993-1998)

Energy Technology Data Exchange (ETDEWEB)

Cal, P.C.

1995-12-31

In 1988, former President Corazon Aquino created the Presidential Task Force on Traffic Management to formulate plans and programs to improve the traffic situation in Metro Manila and to address the emerging problem of air pollution and concern on renewable energy sources for transportation. The Task Force formulated the Metro Manila Traffic Improvement Plan (TRIP) which was approved by President Aquino for implementation. TRIP called for the development of a mass urban transport system, which included the expansion of the light rail transit system and the construction and improvement of the Metro Manila road network. Culled mainly from the TRIP proposals, the Updated Transport and Traffic Management Plan for Metro Manila (1993-1998) was developed through interagency discussions, public consultations, data collation and research work. This plan is directed towards the development of a more responsive public transport system, expansion of road network capacity, and improvement of traffic management and enforcement. Constraints may be present along the way but opportunities and potentials exist for the deliverance of daily commuters struggling to make a living.

El cerealémetro

Directory of Open Access Journals (Sweden)

Santos López, Pascual

2006-01-01

Full Text Available "Apparatus for measuring wheat" was the title that Geronimo Salmerón Gómez put his invention patented in 1939. Which calls for defining the quality of wheat is marketed. Salmerón always worried about the price of bread and flour quality came to manufacture his invention usually called "Cerealémetro".

[Models for intervention in autism spectrum disorders: Denver and SCERTS].

Science.gov (United States)

Forment-Dasca, C

2017-02-24

Given the increased prevalence of diagnoses of autism in recent years, the growing amount of research on models with which to work with people with autism spectrum disorders (ASD) has led to the development of different techniques and methods enabling better results to be obtained. As a result, it has become possible to help improve many of the symptoms that prevent people with this diagnosis and their families from leading a normal life. To review two intervention models specifically designed for working with persons with ASD. The review first examines an early intervention model, the Early Start Denver Model, which consists in a checklist for children with ASD aged from 12 to 48 months, based on their progress. The SCERTS model is also reviewed. Unlike the Denver, this model presents goals that must be worked on throughout the entire lifespan of those with ASD. In the absence of further results from scientific evidence-based practice regarding the two models reviewed here, it can be concluded that there is no single standardised model and that children with difficulties in joint attention and imitation need to be referred at an early stage, as well as working together with the families. Thus, to perform a correct intervention it is necessary to take into account evidence-based practice and for the therapist to have a deep knowledge, respect and understanding of children with ASD and of their families.

78 FR 72700 - Notice of Inventory Completion: History Colorado, formerly Colorado Historical Society, Denver, CO

Science.gov (United States)

2013-12-03

... Mexico, were invited to consult but did not participate. History and Description of the Remains In the....R50000] Notice of Inventory Completion: History Colorado, formerly Colorado Historical Society, Denver, CO AGENCY: National Park Service, Interior. ACTION: Notice. SUMMARY: History Colorado has completed...

Hubungan Media Metro Tv Terhadap Pendidikan Politik Mahasiswa Fisip Usu(Studi Tentang Peran Media Metro Tv Dalam Sosialisasi Tahapan Pilpres 2014)

OpenAIRE

Hutauruk, Andreas Ruli

2015-01-01

This research attempts to explain the relationship Metro TV media related to political education socialization stages PILPRES 2014 received FISIP USU students. The theory is used to explain this study are: first theory put forward by the mass media Innis Media Metro TV that has the function of providing information to the community and also educate the public. Second, political education theory put forward Ramlan Surbakti that provide an understanding of the political education should be expl...

Examples of extremely low-frequency magnetic fields in a Finnish metro station

International Nuclear Information System (INIS)

Korpinen, L.; Sydaenheimo, L.; Laehdetie, A.; Amundin, A.; Piippo, H.

2015-01-01

The aim of this pilot study was to present examples of extremely low-frequency (ELF) magnetic fields in a Finnish metro station. The metro trains are powered by 750 V DC voltage supplied through a conductor rail next to the running rails. We measured magnetic fields with a magnetic field meter MFM 3000 in 17 cases when a train was leaving the platform in the same metro station. The maximum measured magnetic field was 5400 nT (at 1 m height and 4.3 m from the conductor rail). The magnetic field stayed at this level for a very short time after the metro left the platform. It is possible that there are also DC magnetic fields near the metro as the train leaves the station because the trains are powered by DC voltage. Therefore, it is also important to measure DC fields and DC currents in the future. (authors)

Bernie's Odyssey: Denver Nuggets' General Manager Bernie Bickerstaff's Basketball Roots in Harlan County, Ky.

Science.gov (United States)

Nelson, Glenn

1992-01-01

Bernie Bickerstaff discusses how growing up as an African-American athlete in rural Kentucky prepared him to become the general manager of the Denver Nuggets. Triumphing over the area's racial segregation, poverty, and mining perils gave him a sense of strength that enabled him to overcome barriers in advancing his career. (LP)

Measuring Crowdedness between Adjacent Stations in an Urban Metro System: a Chinese Case Study

Directory of Open Access Journals (Sweden)

Liudan Jiao

2017-12-01

Full Text Available The urban metro system has been widely appreciated as the most important component in urban infrastructures. It plays a critical role in promoting urban social and economic development, and particularly in reducing the urban traffic congestion. However, there are various inherent problems with operating metro systems, which typically involve the crowdedness both at stations and inside vehicles. Both policymakers and academic researchers in China have paid little attention to the crowdedness between metro stations. In order to solve the problem of crowdedness, it is necessary to develop a method to evaluate the level of crowdedness. This work establishes a model to measure the crowdedness between adjacent stations in a metro system based on the load factor principle, passenger standing density, and other factors such as the metro operation schedule and estimations of passenger flows. The Chongqing Metro Line 3 in China is used as a case study to demonstrate the application of the evaluation model. The case study reveals that the model introduced in this study can assist with assessing the crowdedness level between adjacent stations in a metro line. The model is an effective tool for helping the metro management and administration understand the level of crowdedness, apply proper methods to mitigate the crowdedness, and thus improve the quality of the service for those utilizing the metro system.

ENRAIZAMENTO DE ESTACAS DE DIFERENTES DIÂMETROS EM Platanus acerifolia (Aiton) Willdenow

OpenAIRE

Carlos Alberto Dias; Rosane Maria Simon Lampert Dias; Elcí Terezinha Henz Franco

1999-01-01

O presente trabalho teve como finalidade estudar o efeito do ácido indol-3-butírico (AIB) no enraizamento de estacas caulinares de diferentes diâmetros de Platanus acerifolia (Aiton) Willdenow. Para tal, foram utilizadas estacas finas (diâmetro médio 0,94 cm); médias (diâmetro médio de 1,58 cm) e grossas (diâmetro médio 2,75 cm), submetidas a dois tratamentos: T1 (testemunha) e T2 (6000 ppm de AIB em talco). A aplicação da auxina foi por meio de talco na base das estacas, sendo plantadas em s...

Numerical modeling and monitoring analysis of Heroísmo station, Metro do Porto

DEFF Research Database (Denmark)

Ferreira, P.; Sousa, T.; Silva, P.

2007-01-01

Metro do Porto is a major light rail infrastructure built in the city of Porto and surrounding municipalities. In Porto's downtown, classified by UNESCO as World Heritage, the metro was built underground. From a technical point of view, one of the most challenging underground metro stations due t...

Applying the metro map to software development management

Science.gov (United States)

Aguirregoitia, Amaia; Dolado, J. Javier; Presedo, Concepción

2010-01-01

This paper presents MetroMap, a new graphical representation model for controlling and managing the software development process. Metromap uses metaphors and visual representation techniques to explore several key indicators in order to support problem detection and resolution. The resulting visualization addresses diverse management tasks, such as tracking of deviations from the plan, analysis of patterns of failure detection and correction, overall assessment of change management policies, and estimation of product quality. The proposed visualization uses a metaphor with a metro map along with various interactive techniques to represent information concerning the software development process and to deal efficiently with multivariate visual queries. Finally, the paper shows the implementation of the tool in JavaFX with data of a real project and the results of testing the tool with the aforementioned data and users attempting several information retrieval tasks. The conclusion shows the results of analyzing user response time and efficiency using the MetroMap visualization system. The utility of the tool was positively evaluated.

Outcome for Children Receiving the Early Start Denver Model before and after 48 Months

Science.gov (United States)

Vivanti, Giacomo; Dissanayake, Cheryl

2016-01-01

The Early Start Denver Model (ESDM) is an intervention program recommended for pre-schoolers with autism ages 12-48 months. The rationale for this recommendation is the potential for intervention to affect developmental trajectories during early sensitive periods. We investigated outcomes of 32 children aged 18-48 months and 28 children aged…

Site selection model for new metro stations based on land use

Science.gov (United States)

Zhang, Nan; Chen, Xuewu

2015-12-01

Since the construction of metro system generally lags behind the development of urban land use, sites of metro stations should adapt to their surrounding situations, which was rarely discussed by previous research on station layout. This paper proposes a new site selection model to find the best location for a metro station, establishing the indicator system based on land use and combining AHP with entropy weight method to obtain the schemes' ranking. The feasibility and efficiency of this model has been validated by evaluating Nanjing Shengtai Road station and other potential sites.

2012 OLC Lidar: West Metro, Oregon

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — WSI has collected Light Detection and Ranging (LiDAR) data of the Oregon West Metro Study Area for the Oregon Department of Geology and Mineral Industries (DOGAMI)....

Using a Metro Map Metaphor for organizing Web-based learning resources

DEFF Research Database (Denmark)

Grønbæk, Kaj; Bang, Tove; Hansen, Per Steen

2002-01-01

This paper briefly describes the WebNize system and how it applies a Metro Map metaphor for organizing guided tours in Web based resources. Then, experiences in using the Metro Map based tours in a Knowledge Sharing project at the library at Aarhus School of Business (ASB) in Denmark, are discussed...... is to create models for Intelligent Knowledge Solutions that can contribute to form the learning environments of the School in the 21st century. The WebNize system is used for sharing of knowledge through metro maps for specific subject areas made available in the Learning Resource Centre at ASB. The metro....... The Library has been involved in establishing a Learning Resource Center (LRC). The LRC serves as an exploratorium for the development and the testing of new forms of communication and learning, at the same time as it integrates the information resources of the electronic research library. The objective...

Evaluating the Social Validity of the Early Start Denver Model: A Convergent Mixed Methods Study

Science.gov (United States)

Ogilvie, Emily; McCrudden, Matthew T.

2017-01-01

An intervention has social validity to the extent that it is socially acceptable to participants and stakeholders. This pilot convergent mixed methods study evaluated parents' perceptions of the social validity of the Early Start Denver Model (ESDM), a naturalistic behavioral intervention for children with autism. It focused on whether the parents…

Denver screening protocol for blunt cerebrovascular injury reduces the use of multi-detector computed tomography angiography.

Science.gov (United States)

Beliaev, Andrei M; Barber, P Alan; Marshall, Roger J; Civil, Ian

2014-06-01

Blunt cerebrovascular injury (BCVI) occurs in 0.2-2.7% of blunt trauma patients and has up to 30% mortality. Conventional screening does not recognize up to 20% of BCVI patients. To improve diagnosis of BCVI, both an expanded battery of screening criteria and a multi-detector computed tomography angiography (CTA) have been suggested. The aim of this study is to investigate whether the use of CTA restricted to the Denver protocol screen-positive patients would reduce the unnecessary use of CTA as a pre-emptive screening tool. This is a registry-based study of blunt trauma patients admitted to Auckland City Hospital from 1998 to 2012. The diagnosis of BCVI was confirmed or excluded with CTA, magnetic resonance angiography and, if these imaging were non-conclusive, four-vessel digital subtraction angiography. Thirty (61%) BCVI and 19 (39%) non-BCVI patients met eligibility criteria. The Denver protocol applied to our cohort of patients had a sensitivity of 97% (95% confidence interval (CI): 83-100%) and a specificity of 42% (95% CI: 20-67%). With a prevalence of BCVI in blunt trauma patients of 0.2% and 2.7%, post-test odds of a screen-positive test were 0.03 (95% CI: 0.002-0.005) and 0.046 (95% CI: 0.314-0.068), respectively. Application of the CTA to the Denver protocol screen-positive trauma patients can decrease the use of CTA as a pre-emptive screening tool by 95-97% and reduces its hazards. © 2013 Royal Australasian College of Surgeons.

78 FR 19308 - Notice of Intent To Repatriate Cultural Items: University of Denver Museum of Anthropology...

Science.gov (United States)

2013-03-29

...-PPWOCRADN0] Notice of Intent To Repatriate Cultural Items: University of Denver Museum of Anthropology... Museum of Anthropology, in consultation with the appropriate Indian tribes, has determined that the... Museum of Anthropology. DATES: Representatives of any Indian tribe that believes it has a cultural...

78 FR 2077 - Implementation of the Local Community Radio Act of 2010; Revision of Service and Eligibility...

Science.gov (United States)

2013-01-09

... more limited selection--four unique LPFM channels in the Denver Arbitron Metro market and three in the... to propose use of directional antennas in making these showings. This is consistent with our..., polarization and directional patterns extends only to waiver applicants seeking to demonstrate that their...

INFLUÊNCIA DO DIÂMETRO DE ESTACAS NO DESENVOLVIMENTO DOS BROTOS DE Platanus x acerifolia

OpenAIRE

Leonardo S. Oliveira; Alessandro C. Miola; Mauro V. Schumacher; Juarez M. Hoppe

1999-01-01

O objetivo do presente trabalho foi determinar o diâmetro ideal de estacas para a produção de mudas de Platanus x acerifolia. As estacas utilizadas foram coletadas em árvores cuja a brotação apresentava-se com um ano de idade. Foram comparados três diâmetros de estacas: diâmetros inferiores a 1 cm, diâmetros entre 1 e 2 cm e diâmetros superiores a 2 cm. Todas as estacas possuiam 30 cm de comprimento. Decorridos 90 dias do plantio das estacas, foram medidas as alturas dos brotos, onde na qual ...

Influencia de los parámetros de proceso, en el comportamiento del parámetro vibración absoluta en turbinas de vapor.

Directory of Open Access Journals (Sweden)

F. de la Torre Silva

2008-01-01

Full Text Available Este trabajo muestra el estudio realizado en turbinas de vapor de pequeña capacidad de generación de las centrales termoeléctricas cubanas, relacionadas con la influencia estadística entre parámetros de proceso de la turbina, respecto al parámetro vibración absoluta, medidos en las chumaceras de la turbina. Se utilizan las bases de datos de los sistemas de monitoreado on-line de la turbina. Se exponen las relaciones existentes entre los principales parámetros seleccionados para este estudio.This work show the study in small steam turbine capacity of generation in cubans thermoelectric power station to relative with statistical influence between steam process parameters regarding absolute vibration parameter, in the steam housing measurements. Themselves use database as steam on-line monitoring systems. Expose the existing relation between the principal selection parameters for this study.

Building America Case Study: New Town Builders' Power of Zero Energy Center, Denver, Colorado (Brochure)

Energy Technology Data Exchange (ETDEWEB)

2014-10-01

New Town Builders, a builder of energy efficient homes in Denver, Colorado, offers a zero energy option for all the homes it builds. To attract a wide range of potential homebuyers to its energy efficient homes, New Town Builders created a 'Power of Zero Energy Center' linked to its model home in the Stapleton community of Denver. This case study presents New Town Builders' marketing approach, which is targeted to appeal to homebuyers' emotions rather than overwhelming homebuyers with scientific details about the technology. The exhibits in the Power of Zero Energy Center focus on reduced energy expenses for the homeowner, improved occupant comfort, the reputation of the builder, and the lack of sacrificing the homebuyers' desired design features to achieve zero net energy in the home. The case study also contains customer and realtor testimonials related to the effectiveness of the Center in influencing homebuyers to purchase a zero energy home.

Conference Offers Girls Opportunity to Expand Career Horizons

Science.gov (United States)

Offers Girls Opportunity to Expand Career Horizons For more information contact: e:mail: Public Affairs Golden, Colo., Feb. 11, 1997 -- Expanding Your Horizons, a conference for girls grades 6 - 9 and Employed Women, Girls Incorporated of Metro Denver, King Soopers, McDonalds, the TCI Adult Program and the

Early Start Denver Model - intervention for de helt små børn med autisme

DEFF Research Database (Denmark)

Brynskov, Cecilia

2015-01-01

Early Start Denver Model (ESDM) er en autismespecifik interventionsmetode, som er udviklet til helt små børn med autisme (0-4 år). Metoden fokuserer på at styrke den tidlige kontakt og barnets motivation, og den arbejder målrettet med de socio-kommunikative forløbere for sprog og med den tidlige...

2011 Residential Energy Efficiency Technical Update Meeting Summary Report: Denver, Colorado - August 9-11, 2011

Energy Technology Data Exchange (ETDEWEB)

2011-11-01

This report provides an overview of the U.S. Department of Energy Building America program's Summer 2011 Residential Energy Efficiency Technical Update Meeting. This meeting was held on August 9-11, 2011, in Denver, Colorado, and brought together more than 290 professionals representing organizations with a vested interest in energy efficiency improvements in residential buildings.

Program and Abstracts: DOE Solar Program Review Meeting 2004, 25--28 October 2004, Denver, Colorado

Energy Technology Data Exchange (ETDEWEB)

2004-10-01

This booklet contains the agenda and abstracts for the 2004 U.S. DOE Solar Energy Technologies Program Review Meeting. The meeting was held in Denver, Colorado, October 25-28, 2004. More than 240 abstracts are contained in this publication. Topic areas for the research papers include laboratory research, program management, policy analysis, and deployment of solar technologies.

Comparación interlaboratorial de cronómetros 2014

Directory of Open Access Journals (Sweden)

Oscar Fallas-Cordero

2015-09-01

En este trabajo se describe y presentan los resultados de una comparación de cronómetros que se llevó a cabo en Costa Rica, entre marzo del 2014 hasta octubre del mismo año, por el Laboratorio Metrológico de Variables Eléctricas (LMVE del Instituto Costarricense de Electricidad (ICE, como INM designado en Costa Rica para Electricidad, Magnetismo, Tiempo y Frecuencia. La comparación involucró 6 laboratorios participantes y un cronómetro patrón viajero.

Quantity and quality of ground-water discharge to the South Platte River, Denver to Fort Lupton, Colorado, August 1992 through July 1993

Science.gov (United States)

McMahon, P.B.; Lull, K.J.; Dennehy, K.F.; Collins, J.A.

1995-01-01

Water-quality studies conducted by the Metro Wastewater Reclamation District have indicated that during low flow in segments of the South Platte River between Denver and Fort Lupton, concentrations of dissolved oxygen are less than minimum concen- trations set by the State of Colorado. Low dissolved-oxygen concentrations are observed in two reaches of the river-they are about 3.3 to 6.4 miles and 17 to 25 miles downstream from the Metro Waste- water Reclamation District effluent outfalls. Concentrations of dissolved oxygen recover between these two reaches. Studies conducted by the U.S. Geological Survey have indicated that ground-water discharge to the river may contribute to these low dissolved-oxygen concentrations. As a result, an assessment was made of the quantity and quality of ground-water discharge to the South Platte River from Denver to Fort Lupton. Measurements of surface- water and ground-water discharge and collections of surface water and ground water for water-quality analyses were made from August 1992 through January 1993 and in May and July 1993. The quantity of ground-water discharge to the South Platte River was determined indirectly by mass balance of surface-water inflows and outflows and directly by instantaneous measurements of ground-water discharge across the sediment/water interface in the river channel. The quality of surface water and ground water was determined by sampling and analysis of water from the river and monitoring wells screened in the alluvial aquifer adjacent to the river and by sampling and analysis of water from piezometers screened in sediments underlying the river channel. The ground-water flow system was subdivided into a large-area and a small-area flow system. The precise boundaries of the two flow systems are not known. However, the large-area flow system is considered to incorporate all alluvial sediments in hydrologic connection with the South Platte River. The small- area flow system is considered to incorporate

Diferentes aferições do diâmetro abdominal sagital e do perímetro da cintura na predição do HOMA-IR Mediciones distintas del diámetro abdominal sagital y del perímetro de la cintura en la predicción del HOMA-IR Different measurements of the sagittal abdominal diameter and waist perimeter in the prediction of HOMA-IR

Directory of Open Access Journals (Sweden)

Ana Carolina Junqueira Vasques

2009-11-01

Full Text Available FUNDAMENTO: A correlação entre aumento de gordura visceral e de resistência à insulina coloca o diâmetro abdominal sagital e o perímetro da cintura como instrumentos potenciais para a predição de resistência à insulina. OBJETIVO: Avaliar a reprodutibilidade de diferentes aferições do diâmetro abdominal sagital e do perímetro da cintura e analisar o poder discriminante dos mesmos para predizer resistência à insulina. MÉTODOS: Foram avaliados 190 homens adultos. O diâmetro abdominal sagital (menor cintura, maior diâmetro abdominal, nível umbilical e ponto médio entre as cristas ilíacas e o perímetro da cintura (nível umbilical, menor cintura, imediatamente acima da crista ilíaca e ponto médio entre a crista ilíaca e a última costela foram aferidos em quatro locais diferentes. A resistência à insulina foi avaliada pelo índice HOMA-IR. RESULTADOS: Todas as medidas apresentaram correlação intraclasse de 0,986-0,999. Tanto o diâmetro abdominal sagital aferido na menor cintura (r=0,482 e AUC=0,739±0,049 como o perímetro da cintura aferido no ponto médio entre a última costela e a crista ilíaca (r=0,464 e AUC=0,746±0,05 apresentaram maiores correlações com o HOMA-IR, bem como um melhor poder discriminante para o HOMA-IR segundo a análise ROC (pFUNDAMENTO: La correlación entre aumento de la grasa visceral y de la resistencia a la insulina pone el diámetro abdominal sagital y el perímetro de la cintura como los instrumentos potenciales para la predicción de resistencia a la insulina. OBJETIVO: Evaluar la reproductibilidad de distintas mediciones del diámetro abdominal sagital y del perímetro de la cintura y analizar el poder discriminante de las mismas para predecir resistencia a la insulina. MÉTODOS: Se evaluaron a 190 varones adultos. El diámetro abdominal sagital (menor cintura, mayor diámetro abdominal, nivel umbilical y punto promedio entre las crestas ilíacas y el perímetro de la cintura (nivel

Levels of particulate air pollution, its elemental composition, determinants and health effects in metro systems

Science.gov (United States)

Nieuwenhuijsen, M. J.; Gómez-Perales, J. E.; Colvile, R. N.

The aim of this study was to review and summarise the levels of particulate air pollution, its elemental composition, its determinants, and its potential health effects in metro systems. A number of studies have been conducted to assess the levels of particulate matter and its chemical composition in metro systems. The monitoring equipment used varied and may have led to different reporting and makes it more difficult to compare results between metro systems. Some of the highest average levels of particulate matter were measured in the London metro system. Whereas some studies have reported higher levels of particulate matter in the metro system (e.g. London, Helsinki, Stockholm) compared to other modes of transport (London) and street canyons (Stockholm and Helsinki), other studies reported lower levels in the metro system (e.g. Hong Kong, Guangzhou, and Mexico City). The differences may be due to different material of the wheel, ventilation levels and breaking systems but there is no good evidence to what extent the differences may be explained by this, except perhaps for some elements (e.g. Fe, Mn). The dust in the metro system was shown to be more toxic than ambient airborne particulates, and its toxicity was compared with welding dust. The higher toxicity may be due to the higher iron content. Although the current levels of particulate matter and toxic matter are unlikely to lead to any significant excess health effects in commuters, they should be reduced where possible. It will be difficult to introduce measures to reduce the levels in older metro systems, e.g. by introducing air conditioning in London, but certainly they should be part of any new designs of metro systems.

Brief Report: Predictors of Outcomes in the Early Start Denver Model Delivered in a Group Setting

Science.gov (United States)

Vivanti, Giacomo; Dissanayake, Cheryl; Zierhut, Cynthia; Rogers, Sally J.

2013-01-01

There is a paucity of studies that have looked at factors associated with responsiveness to interventions in preschoolers with autism spectrum disorder (ASD). We investigated learning profiles associated with response to the Early Start Denver Model delivered in a group setting. Our preliminary results from 21 preschool children with an ASD aged…

2012 OLC Lidar DEM: West Metro, Oregon

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — WSI has collected Light Detection and Ranging (LiDAR) data of the Oregon West Metro Study Area for the Oregon Department of Geology and Mineral Industries (DOGAMI)....

Tertiary-care facility's seniors association attracts its highest number of referrals through word-of-mouth. University Hospital, Denver, CO.

Science.gov (United States)

Lewicki, G

1999-01-01

University Hospital, Denver, has started its University Seniors Assn. to promote health and wellness to people 50 and older. Within four months the organization had 500 members. Now the association is 3,500 members strong.

The predicted impact of VOCs from Marijuana cultivation operations on ozone concentrations in great Denver, CO.

Science.gov (United States)

Wang, C. T.; Vizuete, W.; Wiedinmyer, C.; Ashworth, K.

2016-12-01

Colorado is the first the marijuana legal states in the United States since 2014. As a result, thousands of legal Marijuana cultivation operations are at great Denver area now. Those Marijuana cultivation operations could be the potential to release a lot of biogenic VOCs, such as monoterpene(C10H16), alpha-pinene, and D-limonene. Those alkene species could rapidly increase the peroxy radicals and chemical reactions in the atmosphere, especially in the urban area which belong to VOC-limited ozone regime. These emissions will increase the ozone in Denver city, where is ozone non-attainment area. Some previous research explained the marijuana smoke and indoor air quality (Martyny, Serrano, Schaeffer, & Van Dyke, 2013) and the smell of marijuana chemical compounds(Rice & Koziel, 2015). However, there have been no studies discuss on identifying and assessing emission rate from marijuana and how those species impact on atmospheric chemistry and ozone concentration, and the marijuana emissions have been not considered in the national emission inventory, either. This research will use air quality model to identify the possibility of ozone impact by marijuana cultivation emission. The Comprehensive Air Quality Model with Extensions, CAMx, are applied for this research to identify the impact of ozone concentration. This model is government regulatory model based on the Three-State Air Quality Modeling Study (3SAQS), which developed by UNC-Chapel Hill and ENVIRON in 2012. This model is used for evaluation and regulate the ozone impact in ozone non-attainment area, Denver city. The details of the 3SAQS model setup and protocol can be found in the 3SAQS report(UNC-IE, 2013). For the marijuana emission study scenarios, we assumed the monoterpene (C10H16) is the only emission species in air quality model and identify the ozone change in the model by the different quantity of emission rate from marijuana cultivation operations.

The Denver Tube Combined with Antiviral Drugs In the Treatment of HBV-related Cirrhosis with Refractory Ascites: A Report of Three Cases

Directory of Open Access Journals (Sweden)

Wang Xiao-jin

2014-03-01

Full Text Available Treatment of nucleos(tide antiviral drugs for decompensated HBV-related cirrhosis can significantly improve the prognosis. But those patients with refractory ascites possibly deteriorate due to the complications of ascites before any benefit from anti-viral drugs could be observed. Therefore, it is important to find a way to help the patients with HBV-related cirrhosis and refractory ascites to receive the full benefits from antiviral therapy. Peritoneovenous shunt (PVS using Denver tube enables ascites to continuously bypass into systemic circulation, thereby reducing ascites and albumin input and improving quality of life. We report herein 3 cases of decompensated HBV-related cirrhosis with refractory ascites, PVS using Denver tube was combined with lamivudine for antiviral treatment before and after. Then, ascites was alleviated significantly or disapeared and viral responsed well. All patients achieved a satisfactory long-term survival from 6.7 to 14.7 years. It was suggested that the Denver shunt could be used as an adjuvant method to antiviral drugs for decompensated HBV-related cirrhosis with refractory ascites to help the patients reap the full benefits and maximize efficacy of antiviral treatment.

Desarrollo de un Efecto de Sonido controlado mediante un acelerómetro

OpenAIRE

Naami, Amnay

2015-01-01

En este TFG se propone un nuevo procedimiento para accionar un efecto de sonido wah-wah basado en el uso de un acelerómetro que detecta el movimiento del pie del músico, sin necesidad de accionar directamente una plataforma. El efecto de sonido estaría formado por el acelerómetro, un circuito de detección de la señal del acelerómetro y generación de una señal de control que actúa sobre un filtro controlado por tensión (VCF) y el propio VCF, cuya frecuencia de corte depende de la señal d...

VARIABILIDAD DEL PARÁMETRO DE RUGOSIDAD SOBRE UNA COBERTURA VEGETAL

Directory of Open Access Journals (Sweden)

María Isabel Gassmann

2015-12-01

Full Text Available La longitud de rugosidad es un parámetro de escala característico de la capa de superficie, utilizado en estudios micrometeorológicos, de contaminación urbana, de potencial eólico o en los modelos dinámicos de pronóstico del tiempo y el clima. Experimentalmente este parámetro se determina a partir de datos observacionales del perfil de viento bajo condiciones neutrales de estabilidad atmosférica. Sin embargo, existen evidencias de una dependencia del mismo con los cambios en la estabilidad. Utilizando datos observados sobre una superficie con cobertura vegetal y bajo las hipótesis de la teoría de la semejanza de Monin-Obukhov, se estudió la variabilidad del parámetro de rugosidad con la estabilidad atmosférica. Se obtuvieron expresiones empíricas que permitieron estimar esa longitud en función de un parámetro de estabilidad. Se encontraron variaciones en su magnitud de hasta dos órdenes bajo condiciones estables, mientras que en condiciones inestables su variabilidad fue pequeña. Por otra parte, se estudió el impacto que producen las parametrizaciones obtenidas al aplicarlas en un preprocesador meteorológico para un modelo de difusión de contaminantes. Los resultados obtenidos tendrían un impacto directo en el campo de velocidades cercano a superficie

Termómetro digital

OpenAIRE

Olivar Ruiz, Marta

2015-01-01

En este trabajo de fin de grado se ha realizado un termómetro digital utilizando Arduino, plataforma hardware y software basada en microcontroladores comerciales integrados en una PCB y un display digital. Como transductor de temperatura se emplea el termopar de tipo K. Se abarcan todas las etapas, desde el diseño del circuito electrónico hasta la fabricación del prototipo. El circuito electrónico diseñado realiza el acondicionamiento de las señales, tanto del termopar como del sensor de temp...

IAEA perspectives on geological repositories. Address at the international conference on geological repositories, Denver, 1 November 1999

International Nuclear Information System (INIS)

ElBaradei, M.

1999-01-01

In his address at the International Conference on Geological Repositories (Denver, 1 November 1999), the Director General of the IAEA gave a general presentation of the problem of disposal of high-level radioactive waste, and described the current situation in the countries using nuclear energy including present and future Agency's activities

Stationary super-capacitor energy storage system to save regenerative braking energy in a metro line

International Nuclear Information System (INIS)

Teymourfar, Reza; Asaei, Behzad; Iman-Eini, Hossein; Nejati fard, Razieh

2012-01-01

Highlights: ► Super-capacitors are used to store regenerative braking energy in a metro network. ► A novel approach is proposed to model easily and accurately the metro network. ► An efficient approach is proposed to calculate the required super-capacitors. ► Maximum energy saving is around 44% at off-peak period and 42% at peak period. ► Benefit/cost analyses are performed for the suggested ESS. - Abstract: In this paper, the stationary super-capacitors are used to store a metro network regenerative braking energy. In order to estimate the required energy storage systems (ESSs), line 3 of Tehran metro network is modeled through a novel approach, in peak and off-peak conditions based on the real data obtained from Tehran metro office. A useful method is proposed to predict the maximum instantaneous regenerative energy which is delivered to each station before applying ESS and based on that the ESS configuration for each station is determined. Finally, the effectiveness of the proposed ESS is confirmed by economic evaluations and benefit/cost analyses on line 3 of Tehran metro network.

parámetros en híbridos de populus

Directory of Open Access Journals (Sweden)

O. S. Vallejos-Barra

2007-01-01

Full Text Available La variable diámetro a la altura del pecho, medido a 1.3 m desde el suelo (DAP es lognormal si log(DAP-θ se distribuye normalmente. Para simplificar el ajuste de esta función de densidad de probabilidad (fdp se supone que el parámetro de localización (θ es cero en híbridos de Populus; sin embargo, en algunos casos esta simplificación no asegura el mejor ajuste de la fdp, incidiendo en la representación de la estructura horizontal de los híbridos. El objetivo de la investigación fue calcular el parámetro θ que proporcione el mejor ajuste de la fdp lognormal del DAP en los híbridos I-488 e I-63/51. Para este cálculo se utilizó un algoritmo de búsqueda binaria, que minimizó el estadístico Dn de la prueba de Kolmogorov-Smirnov. 38 % de las parcelas presentó un parámetro θ distinto de cero, originando una mejoría del valor de probabilidad (P entre 0.02 y 55.4 %. Se hizo un análisis de varianza no paramétrico de la variable “√n * Dn”, ya que la variable original y múltiples transformaciones no permitieron aceptar los supuestos del análisis paramétrico. El tipo de ajuste presentó diferencias estadísticas altamente significativas con un valor de 17.1 (P0.800 y las edades un valor de 11.2 (P>0.260.

An Association Rule Based Method to Integrate Metro-Public Bicycle Smart Card Data for Trip Chain Analysis

Directory of Open Access Journals (Sweden)

De Zhao

2018-01-01

Full Text Available Smart card data provide valuable insights and massive samples for enhancing the understanding of transfer behavior between metro and public bicycle. However, smart cards for metro and public bicycle are often issued and managed by independent companies and this results in the same commuter having different identity tags in the metro and public bicycle smart card systems. The primary objective of this study is to develop a data fusion methodology for matching metro and public bicycle smart cards for the same commuter using historical smart card data. A novel method with association rules to match the data derived from the two systems is proposed and validation was performed. The results showed that our proposed method successfully matched 573 pairs of smart cards with an accuracy of 100%. We also validated the association rules method through visualization of individual metro and public bicycle trips. Based on the matched cards, interesting findings of metro-bicycle transfer have been derived, including the spatial pattern of the public bicycle as first/last mile solution as well as the duration of a metro trip chain.

Multímetro como sistema de medición alternativo en las valoraciones potenciométricas

Directory of Open Access Journals (Sweden)

José de Jesús Pérez-Saavedra

2015-09-01

Full Text Available En el presente trabajo, experimentalmente se demuestra que las valoraciones potenciométricas usuales en química analítica (acido-base, redox, complejométricas y de halogenuros pueden llevarse a cabo utilizando como sistema indicador de punto de equivalencia, un multímetro en vez del potenciómetro, mediante la prueba estadística de t de Student; y se posibilita con esto que los laboratorios de docencia se puedan equipar mejor y a bajo costo, con multímetros en vez de potenciómetros.

Novo método para calcular o diâmetro médio de agregados de solos

Directory of Open Access Journals (Sweden)

Q. de JONG van LIER

1997-12-01

Full Text Available Ao calcular o diâmetro médio ponderado (DMP ou o diâmetro médio geométrico (DMG de uma amostra de solo, ponderam-se o diâmetro médio aritmético (no caso do DMP ou o logarítmico (no caso do DMG de cada classe pela massa de agregados nela retida. A média aritmética de cada classe, multiplicada pela massa de agregados retidos na respectiva classe, apenas é correta, quando ocorrer uma distribuição simétrica de massa de agregados dentro de cada classe, o que é muito pouco provável. O objetivo deste trabalho, desenvolvido no final de 1996 no Departamento de Solos da UFRGS, Porto Alegre, é propor um novo método para o cálculo do diâmetro médio dos agregados, presumindo ser a distribuição dentro de cada classe semelhante à distribuição dos agregados de toda a amostra. Essa proposta pressupõe ser o diâmetro médio da classe mais bem estimado por aquele diâmetro que divide os agregados contidos nela em duas partes de massa igual. Para isso foi apresentado um procedimento de cálculo, e o diâmetro médio assim encontrado foi denominado "diâmetro médio ajustado" (DMA. Para testar o método, utilizaram-se dados existentes de vários solos, condições de manejo do solo e rotações de culturas. Considerando os resultados, justifica-se a utilização do parâmetro DMA no lugar do DMP ou DMG, por representar mais corretamente o diâmetro médio dos agregados de uma amostra de solo.

Analysing accessibility effects in a continuous treatment framework: the case of Copenhagen metro

DEFF Research Database (Denmark)

Pons Rotger, Gabriel Angel; Nielsen, Thomas Alexander Sick

increases the probability of long commutes (> 4 km) - and decreases the probability of short commutes (men and women...... it is mainly women that are affected by the accessibility gain and commute longer distances in responses to proximity to the metro. Comparing older and younger commuters it is mainly the older commuters that respond to the increased accessibility offered by metro access – by commuting longer distances....... Comparing income groups a considerably stronger response to the increased accessibility is seen in the highest earning and presumably most skilled group. Comparing commuting responses to metro access grouped by the past commuting behavior of the responspondents indicate a positive effect of proximity...

PLANNING TRIPOLI METRO NETWORK BY THE USE OF REMOTE SENSING IMAGERY

Directory of Open Access Journals (Sweden)

O. Alhusain

2012-08-01

Full Text Available Tripoli, the capital city of Libya is going through significant and integrated development process, this development is expected to continue in the next few decades. The Libyan authorities have put it as their goal to develop Tripoli to an important metropolis in North Africa. To achieve this goal, they identified goals for the city's future development in all human, economic, cultural, touristic, and nonetheless infrastructure levels. On the infrastructure development level, among other things, they have identified the development of public transportation as one of the important development priorities. At present, public transportation in Tripoli is carried out by a limited capacity bus network alongside of individual transportation. However, movement in the city is characterized mainly by individual transportation with all its disadvantages such as traffic jams, significant air pollution with both carbon monoxide and dust, and lack of parking space. The Libyan authorities wisely opted for an efficient, modern, and environment friendly solution for public transportation, this was to plan a complex Metro Network as the backbone of public transportation in the city, and to develop and integrate the bus network and other means of transportation to be in harmony with the planned Metro network. The Metro network is planned to provide convenient connections to Tripoli International Airport and to the planned Railway station. They plan to build a system of Park and Ride (P+R facilities at suitable locations along the Metro lines. This paper will present in details the planned Metro Network, some of the applied technological solutions, the importance of applying remote sensing and GIS technologies in different planning phases, and problems and benefits associated with the use of multi-temporal-, multi-format spatial data in the whole network planning phase.

Planning Tripoli Metro Network by the Use of Remote Sensing Imagery

Science.gov (United States)

Alhusain, O.; Engedy, Gy.; Milady, A.; Paulini, L.; Soos, G.

2012-08-01

Tripoli, the capital city of Libya is going through significant and integrated development process, this development is expected to continue in the next few decades. The Libyan authorities have put it as their goal to develop Tripoli to an important metropolis in North Africa. To achieve this goal, they identified goals for the city's future development in all human, economic, cultural, touristic, and nonetheless infrastructure levels. On the infrastructure development level, among other things, they have identified the development of public transportation as one of the important development priorities. At present, public transportation in Tripoli is carried out by a limited capacity bus network alongside of individual transportation. However, movement in the city is characterized mainly by individual transportation with all its disadvantages such as traffic jams, significant air pollution with both carbon monoxide and dust, and lack of parking space. The Libyan authorities wisely opted for an efficient, modern, and environment friendly solution for public transportation, this was to plan a complex Metro Network as the backbone of public transportation in the city, and to develop and integrate the bus network and other means of transportation to be in harmony with the planned Metro network. The Metro network is planned to provide convenient connections to Tripoli International Airport and to the planned Railway station. They plan to build a system of Park and Ride (P+R) facilities at suitable locations along the Metro lines. This paper will present in details the planned Metro Network, some of the applied technological solutions, the importance of applying remote sensing and GIS technologies in different planning phases, and problems and benefits associated with the use of multi-temporal-, multi-format spatial data in the whole network planning phase.

Evaluation of Environmental Risk Due to Metro System Construction in Jinan, China

Directory of Open Access Journals (Sweden)

Guo-Fu Wang

2017-09-01

Full Text Available Jinan is a famous spring city in China. Construction of underground metro system may block groundwater seepage, inducing the depletion risk of springs. This paper presents an assessment of the risk due to metro line construction to groundwater in Jinan City using Analytic Hierarchy Process (AHP and Geographic International System (GIS. Based on the characteristics of hydrogeology and engineering geology, the assessment model is established from the perspectives of surface index and underground index. The assessment results show that the high and very high risk levels of surface index exceed 98% in the north region; and high and very high risk levels of underground index exceed 56% in urban center and southern region. The assessment result also shows that about 14% of the urban area belongs to very high risk level; regions of high risk are 20% in urban area, 9% in Changqing County and 43% in Pingyin County. In the high risk region, metro lines R1 to R3, which are under construction, and metro lines L1 to L5, which are planned, have very high and high risk. Therefore, risk control measures are proposed to protect the groundwater seepage path to spring.

Evaluation of Environmental Risk Due to Metro System Construction in Jinan, China.

Science.gov (United States)

Wang, Guo-Fu; Lyu, Hai-Min; Shen, Jack Shuilong; Lu, Lin-Hai; Li, Gang; Arulrajah, Arul

2017-09-25

Jinan is a famous spring city in China. Construction of underground metro system may block groundwater seepage, inducing the depletion risk of springs. This paper presents an assessment of the risk due to metro line construction to groundwater in Jinan City using Analytic Hierarchy Process (AHP) and Geographic International System (GIS). Based on the characteristics of hydrogeology and engineering geology, the assessment model is established from the perspectives of surface index and underground index. The assessment results show that the high and very high risk levels of surface index exceed 98% in the north region; and high and very high risk levels of underground index exceed 56% in urban center and southern region. The assessment result also shows that about 14% of the urban area belongs to very high risk level; regions of high risk are 20% in urban area, 9% in Changqing County and 43% in Pingyin County. In the high risk region, metro lines R1 to R3, which are under construction, and metro lines L1 to L5, which are planned, have very high and high risk. Therefore, risk control measures are proposed to protect the groundwater seepage path to spring.

Metro nature, environmental health, and economic value

Science.gov (United States)

Kathleen L. Wolf; Alicia S.T. Robbins

2015-01-01

Background: Nearly 40 years of research provides an extensive body of evidence about human health, well-being, and improved function benefits associated with experiences of nearby nature in cities.Objectives: We demonstrate the numerous opportunities for future research efforts that link metro nature, human health and well-being outcomes,...

An Economic Approach to Transportation and Urban Development in Metro Manila

OpenAIRE

Roth, Lars Christian

2001-01-01

High population growth rate in Metro Manila has a direct effect on the intensity of urbanisation and development in the region and population is expected to reach 13 million by the year 2015. Urban congestion is one of the region's most pressing problems as air pollution has a major impact on public health and particularly affects children and the elderly. This study will give a broad description of transportation and urban development in Metro manila and thus contribute to improve the unders...

Enhanced metro MSTP and its applications

Science.gov (United States)

Li, Guangcheng; Qiao, Yang

2005-02-01

With the large-scale application of metro MSTP in recent two years, a lot of problems have emerged inevitably. Some more advanced technologies or mechanisms are needed to deal with the application problems of current version MSTP. RPR and MPLS become new focus of enhanced MSTP"s features and the combination of them will boost maturity and further development of enhanced metro MSTP. The MSTP embedded with RPR and MPLS not only find a solution for perfect transport of TDM service, but also improve the support ability for data traffic and bandwidth utilization. With the help of enhanced MSTP, it"s easy for network carriers to provide a reliable, cost-effective, flexible and competitive transport infrastructure delivering various advanced services. RPR firstly solves the conflict between the transport efficiency and QoS of packet service via some mechanisms such as dual counter-rotating ringlet, statistical multiplexing, bandwidth sharing, topology discovery, fairness control etc. Secondly, RPR guarantees the QoS of subscriber by strict service classification and priority. Thirdly, RPR can provide the carrier-class protection within 50ms. On the other hand, MPLS can solve the lack of VLAN ID by LSP labeling and in addition it offers VPN service for different customers then enhances the SLA. Most of all, MPLS provide cross-networking ability, end-to-end service configuration and QoS guarantee, traffic engineering and network optimization. Enhanced MSTP will be applied in convergence or access layer of metro network first. It could have the function of RPR and MPLS at the same time, the reconciliation sub-layer should adopts GFP or LAPS encapsulation, the mapping granularity can be based on VC-12/VC3/VC4-Xc/v and the LCAS should be supported when the transmission channels are configured by virtual concatenation. Enhanced MSTP can be used to build either a single ring network or multi-ring network for improving the ability and quality of Ethernet transportation and

Differential subsidence in Mexico City and implications to its Collective Transport System (Metro).

Science.gov (United States)

Solano Rojas, D. E.; Wdowinski, S.; Cabral-Cano, E.; Osmanoglu, B.

2017-12-01

Mexico City is one of the fastest subsiding metropolis in the world. At displacement rates ranging from 0 to -380 [mm/yr], the complex geological setting is subjected to differential subsidence, which has led to damage, operation interruptions, and accidents to the Collective Transport System, or Metro. The Metro plays a critical role in Mexico City, carrying more than four million passengers per day. However, no previous study has focused on the deformation monitoring along the 93 km of the Metro surface railways, mainly because of the limitations of the traditional geodetic techniques. In this study, we use high-resolution Interferometric Synthetic Aperture Radar (InSAR) observations to monitor land subsidence throughout the city and quantify differential subsidence along surface Metro lines. Our analysis is based on 34 TerraSAR-X StripMap scenes acquired from May 2011 to June 2013 and 36 COSMO-SkyMed Stripmap scenes acquired from June 2011 to June 2012. The data were processed using the StaMPS InSAR time series technique, obtaining point densities of up to 4827 points/km2. Our post-processing methodologies include the following two components: (1) Detection of differential subsidence along the metro lines by calculating subsidence gradients, and (2) Detection of apparent uplift—areas subsiding slower than their surroundings—by using spatial frequency filtering. The two analyses allow us to recognize four main consequences of differential subsidence in the Metro system: 1. Deflection in elevated railways, 2. Deflection in street-level railways, 3. Columns with decreased loading capacity, and 4. Apparent uplift affecting surrounding infrastructure. Our results aim at shortening the large gap between scientific geodetic studies and applicable engineering parameters that can be used by local authorities in the city for maintenance and new lines development.

ANALYSIS OF ENERGY SAVING AND ENERGY EFFICIENCY ISSUES DURING OPERATION OF THE METRO ROLLING STOCK

Directory of Open Access Journals (Sweden)

A. V. Donchenko

2016-06-01

Full Text Available Purpose.Nowadays a problem of significant power consumption of the rolling stock during its operation is a current issue. In connection with staged electricity rates increase further development of the rail electric transport, including metro rolling stock is impossible without a use of modern energy saving solutions and energy-efficient systems. To solve the specified problem it is necessary to carry out analysis of measures and determine prospective directions in energy saving and increase of energy efficiency on the metro rolling stock. Methodology. Using methods of scientific analysis, generalization, comparative analysis, forecasting and using results of experimental studies, the authors determined main ways for reduction of energy consumption during operation of the metro rolling stock. Energy cost analysis for metro rolling stock of the public utility (PU «Kiev Metro» was carried out. A great number of research works of native and foreign authors concerning the above mentioned problem were analyzed. Findings. Principal directions in energy saving and increase of energy efficiency of the metro rolling stock are implementation of recuperation systems, energy storage systems and energy-efficient control systems. It was determined that implementation of recuperation and energy storage systems helps to save a considerable amount of energy, consumed for traction, but it involves substantial investments. It is pointed out that in current complicated conditions of economic development of Ukraine, use of energy-efficient control systems is a perspective direction in energy saving. Main advantage of this direction is the economic effect obtaining without significant investments. Originality. For the first time was performed potential assessment for energy saving as a result of energy-efficient control systems use at type routine rolling stock operation modes on sections «Khreschatik –Teatralnaya – Khreschatik» and «Shulyavskaya �

Cross Country MetroLink Segment I Business Plan

Science.gov (United States)

1997-12-02

In the St. Louis, Missouri metropolitan area, the East-West Gateway Coordinating : Council decided the route for the first MetroLink extension in the Cross-County : Corridor in September 1997. The next phase, reflected in this paper is develop, : dur...

INVESTIGAÇÃO SOBRE O FUNCIONAMENTO DE UM TERMÔMETRO DIGITAL DE BAIXO CUSTO

OpenAIRE

Pedroso, Luciano Soares; Pimenta Neto, Fabrício; de Araújo, Mauro Sérgio Teixeira

2014-01-01

Apresenta-se nesse artigo o resultado de um ensaio investigativo em laboratório didático sobre o funcionamento de um Termômetro Digital construído com material de baixo custo e de fácil aquisição. Para a montagem do experimento utilizou-se um multímetro digital, bateria e um sensor de temperatura. O Termômetro digital apresentou algumas características adicionais, como robustez, facilidade de construção, baixo custo, e resposta rápida a variações de temperatura. Os resultados dos experimentos...

Medidas automatizadas de psicrômetro de termopar aspirado versus não aspirado

Directory of Open Access Journals (Sweden)

Antonio Ribeiro da Cunha

2014-06-01

Full Text Available O termopar ou par termoelétrico é utilizado na obtenção da temperatura do ar com ótima precisão, sensibilidade e com grande vantagem sobre o termômetro de mercúrio ou álcool, pois geram sinais elétricos que podem ser armazenados em sistemas automatizados. No entanto, quando se trata da obtenção da umidade relativa a partir de termopar, o processo se torna mais cauteloso devido a outros fatores envolvidos. Neste estudo, avaliaram-se dois conjuntos psicrômetros de termopar, aspirado e não aspirado, em relação a um conjunto Vaisala, no período de 17 a 31/01/2008 (15 dias. A partir de medidas de temperaturas de bulbos seco e úmido foram obtidas medidas da umidade relativa, e com isso, foi possível compará-las com as medidas obtidas pelo conjunto Vaisala. Os dois tipos de psicrômetros apresentaram precisão e exatidão nas medidas de temperatura do ar, e apenas precisão nas medidas de umidade relativa do ar, sendo que o psicrômetro aspirado foi o mais preciso. Apesar do psicrômetro não aspirado ter apresentado menor precisão nas medidas, ele é mais robusto porque independe do micro-ventilador de 12 VDC, o que faz dele um sensor com menos riscos de medidas inadequadas. Ambos os psicrômetros, aspirado e não aspirado, não medem com exatidão a umidade relativa do ar no período noturno.

Shade Sails and Passive Recreation in Public Parks of Melbourne and Denver: A Randomized Intervention

Science.gov (United States)

English, Dallas R.; Buller, Mary Klein; Simmons, Jody; Chamberlain, James A.; Wakefield, Melanie; Dobbinson, Suzanne

2017-01-01

Objectives. To test whether shade sails will increase the use of passive recreation areas (PRAs). Methods. We conducted a stratified randomized pretest–posttest controlled design study in Melbourne, Australia, and Denver, Colorado, in 2010 to 2014. We randomized a sample of 144 public parks with 2 PRAs in full sun in a 1:3 ratio to treatment or control. Shade sails were built at 1 PRA per treatment park. The outcome was any use of the study PRA (n = 576 pretest and n = 576 posttest observations; 100% follow-up). Results. Compared with control PRAs (adjusted probability of use: pretest = 0.14, posttest = 0.17), use of treatment PRAs (pretest = 0.10, posttest = 0.32) was higher at posttest (odds ratio [OR] = 3.91; 95% confidence interval [CI] = 1.71, 8.94). Shade increased use of PRAs in Denver (control: pretest = 0.18, posttest = 0.19; treatment: pretest = 0.16, posttest = 0.47) more than Melbourne (control: pretest = 0.11, posttest = 0.14; shaded: pretest = 0.06, posttest = 0.19; OR = 2.98; 95% CI = 1.09, 8.14). Conclusions. Public investment in shade is warranted for skin cancer prevention and may be especially useful in the United States. Trial Registration. Clinicaltrials.gov identifier NCT02971709. PMID:29048958

Shade Sails and Passive Recreation in Public Parks of Melbourne and Denver: A Randomized Intervention.

Science.gov (United States)

Buller, David B; English, Dallas R; Buller, Mary Klein; Simmons, Jody; Chamberlain, James A; Wakefield, Melanie; Dobbinson, Suzanne

2017-12-01

To test whether shade sails will increase the use of passive recreation areas (PRAs). We conducted a stratified randomized pretest-posttest controlled design study in Melbourne, Australia, and Denver, Colorado, in 2010 to 2014. We randomized a sample of 144 public parks with 2 PRAs in full sun in a 1:3 ratio to treatment or control. Shade sails were built at 1 PRA per treatment park. The outcome was any use of the study PRA (n = 576 pretest and n = 576 posttest observations; 100% follow-up). Compared with control PRAs (adjusted probability of use: pretest = 0.14, posttest = 0.17), use of treatment PRAs (pretest = 0.10, posttest = 0.32) was higher at posttest (odds ratio [OR] = 3.91; 95% confidence interval [CI] = 1.71, 8.94). Shade increased use of PRAs in Denver (control: pretest = 0.18, posttest = 0.19; treatment: pretest = 0.16, posttest = 0.47) more than Melbourne (control: pretest = 0.11, posttest = 0.14; shaded: pretest = 0.06, posttest = 0.19; OR = 2.98; 95% CI = 1.09, 8.14). Public investment in shade is warranted for skin cancer prevention and may be especially useful in the United States. Clinicaltrials.gov identifier NCT02971709.

Improving the Power Quality in Tehran Metro Line-Two Using the Ant Colony Algorithm

Directory of Open Access Journals (Sweden)

H. Ehteshami

2017-12-01

Full Text Available This research aims to survey the improvement of power quality in Tehran metro line 2 using the ant colony algorithm and to investigate all the factors affecting the achievement of this goal. In order to put Tehran on the road of sustainable development, finding a solution for dealing with air pollution is essential. The use of public transportation, especially metro, is one of the ways to achieve this goal. Since the highest share of pollutants in Tehran belongs to cars and mobile sources, relative statistical indicators are estimated through assuming the effect of metro lines development and subsequently reduction of traffic on power quality index.

Diámetro transverso del cerebelo fetal en la restricción del crecimiento intrauterino

OpenAIRE

Salazar de Dugarte, Guillermina

2011-01-01

Objetivo: Evaluar el comportamiento de la biometría del cerebelo fetal en su diámetro transverso, en los casos con restricción del crecimiento intrauterino. Ambiente: Servicio de Perinatología, Hospital "Dr. Adolfo Prince Lara", Puerto Cabello. Métodos: Estudio transversal, de correlación. En 1 569 fetos se realizó la biometría del diámetro transverso del cerebelo, para la construcción del nomograma del mismo. Se estableció una comparación entre los valores del diámetro transverso del cerebel...

A Clinical Translation of the Article Titled "Evidence for the Implementation of the Early Start Denver Model for Young Children With Autism Spectrum Disorder".

Science.gov (United States)

Shannon, Robin Adair

2015-01-01

The purpose of this article is to offer a clinical translation of a literature review titled "Evidence for the Implementation of the Early Start Denver Model for Young Children With Autism Spectrum Disorder" by Ryberg (2015). The literature review was conducted to determine the strength of the research evidence regarding the effectiveness of the Early Start Denver Model in improving cognitive, language, and behavioral functioning of children with autism spectrum disorder. In an effort to narrow the gap between evidence and practice, this clinical translation will discuss the components of the literature review in terms of its rationale for and objectives, methods, results, and implications for evidence-based nursing practice. © The Author(s) 2015.

The Denver Aerosol Sources and Health (DASH) study: Overview and early findings

Science.gov (United States)

Vedal, S.; Hannigan, M. P.; Dutton, S. J.; Miller, S. L.; Milford, J. B.; Rabinovitch, N.; Kim, S.-Y.; Sheppard, L.

Improved understanding of the sources of air pollution that are most harmful could aid in developing more effective measures for protecting human health. The Denver Aerosol Sources and Health (DASH) study was designed to identify the sources of ambient fine particulate matter (PM 2.5) that are most responsible for the adverse health effects of short-term exposure to PM 2.5. Daily 24-h PM 2.5 sampling began in July 2002 at a residential monitoring site in Denver, Colorado, using both Teflon and quartz filter samplers. Sampling is planned to continue through 2008. Chemical speciation is being carried out for mass, inorganic ionic compounds (sulfate, nitrate and ammonium), and carbonaceous components, including elemental carbon, organic carbon, temperature-resolved organic carbon fractions and a large array of organic compounds. In addition, water-soluble metals were measured daily for 12 months in 2003. A receptor-based source apportionment approach utilizing positive matrix factorization (PMF) will be used to identify PM 2.5 source contributions for each 24-h period. Based on a preliminary assessment using synthetic data, the proposed source apportionment should be able to identify many important sources on a daily basis, including secondary ammonium nitrate and ammonium sulfate, diesel vehicle exhaust, road dust, wood combustion and vegetative debris. Meat cooking, gasoline vehicle exhaust and natural gas combustion were more challenging for PMF to accurately identify due to high detection limits for certain organic molecular marker compounds. Measurements of these compounds are being improved and supplemented with additional organic molecular marker compounds. The health study will investigate associations between daily source contributions and an array of health endpoints, including daily mortality and hospitalizations and measures of asthma control in asthmatic children. Findings from the DASH study, in addition to being of interest to policymakers, by

Hybrid Decision-making Method for Emergency Response System of Unattended Train Operation Metro

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Bobo Zhao

2016-04-01

Full Text Available Suitable selection of the emergency alternatives is a critical issue in emergency response system of Unattended Train Operation (UTO metro system of China. However, there is no available method for dispatcher group in Operating Control Center (OCC to evaluate the decision under emergency situation. It was found that the emergency decision making in UTO metro system is relative with the preferences and the importance of multi-dispatcher in emergency. Regarding these factors, this paper presents a hybrid method to determinate the priority weights of emergency alternatives, which aggregates the preference matrix by constructing the emergency response task model based on the Weighted Ordered Weighted Averaging (WOWA operator. This calculation approach derives the importance weights depending on the dispatcher emergency tasks and integrates it into the Ordered Weighted Averaging (OWA operator weights based on a fuzzy membership relation. A case from train fire is given to demonstrate the feasibility and practicability of the proposed methods for Group Multi-Criteria Decision Making (GMCDM in emergency management of UTO metro system. The innovation of this research is paving the way for a systematic emergency decision-making solution which connects the automatic metro emergency response system with the GMCDM theory.

Effectiveness and Feasibility of the Early Start Denver Model Implemented in a Group-Based Community Childcare Setting

Science.gov (United States)

Vivanti, Giacomo; Paynter, Jessica; Duncan, Ed; Fothergill, Hannah; Dissanayake, Cheryl; Rogers, Sally J.

2014-01-01

A recent study documented the efficacy of the Early Start Denver Model (ESDM) delivered in a 1:1 fashion. In the current study we investigated the effectiveness and feasibility of the ESDM in the context of a long-day care community service, with a child-staff ratio of 1:3. Outcomes of 27 preschoolers with ASD undergoing 15-25 h per week of ESDM…

Archives of Environmental Health, Volume 18 Number 4. Ninth AMA Air Pollution Medical Research Conference, Denver, July 22-24, 1968.

Science.gov (United States)

Barton, Frank

Papers read before the Ninth American Medical Association (AMA) Air Pollution Medical Research Conference, Denver, Colorado, July 22-24, 1968, are presented in this document. Topics deal with the relationship and effects of atmospheric pollution to respiratory diseases, epidemiology, human physiological reactions, urban morbidity, health of school…

Rock mass characterization for Copenhagen Metro using face logs

DEFF Research Database (Denmark)

Hansen, Sanne Louise; Galsgaard, Jens; Foged, Niels Nielsen

2015-01-01

An extension of the existing Metro in central Copenhagen is currently under construction. We present a comparison of the different field logging techniques available from a large number of borehole logs and face logs carried out during the construction in cooperation with the constructor and client......, describing rock mass characteristics using detailed face logging with geological description and recording of induration and fracturing, giving a field RQD value during excavation, combined with televiewer logs, when available, has shown to be a valuable tool for rock mass characterization compared......’s representatives, which illustrate and approve the applied methods. The new ‘Cityringen’ Metro will consist of two 16 km single track tunnels, with 17 stations and 3 construction and ventilation shafts. The geological ground conditions are dominated by glacial and postglacial deposits overlying Paleocene Greensand...

Knowledge of Pre-exposure Prophylaxis (PrEP) for HIV Prevention Among Men Who Have Sex with Men in Denver, Colorado

Science.gov (United States)

Al-Tayyib, Alia A.; Thrun, Mark W.; Haukoos, Jason S.; Walls, N. Eugene

2014-01-01

As part of the National HIV Behavioral Surveillance System among men who have sex with men (MSM) in Denver, Colorado, we assessed knowledge of pre-exposure prophylaxis (PrEP); willingness to use PrEP; and potential changes in risk behaviors among HIV-negative participants reporting sexual activity with a male partner in the preceding 12 months. We examined knowledge of PrEP before (2008) and after (2011) results of the iPrEx trial were available. Of the 425 participants in the 2008 sample, 91 (21 %) were aware of PrEP compared to 131 (28 %) of the 461 participants in the 2011 sample (adjusted prevalence ratio: 1.43, 95 % confidence interval: 1.18, 1.72). Despite the increase in 2011, few MSM in Denver were aware of PrEP. Educating high-risk MSM about the potential utility of PrEP as an adjunct to other effective prevention methods is needed when considering the addition of PrEP to the HIV prevention arsenal. PMID:23824227

Network planning study of the metro-optical-network-oriented 3G application

Science.gov (United States)

Gong, Qian; Xu, Rong; Lin, Jin Tong

2005-02-01

To compare with the 2G mobile communication, 3G technologies can supply the perfect service scope and performance. 3G is the trend of the mobile communication. So now to build the transmission network, it is needed to consider how the transmission network to support the 3G applications. For the 3G network architecture, it include the 2 part: Utran access network and core network. So the metro optical network should consider how to build the network to adapt the 3G applications. Include the metro core and access layer. In the metro core, we should consider the network should evolved towards the Mesh architecture with ASON function to realize the fast protection and restoration, quick end-to-end service provision, and high capacity cross-connect matrix etc. In the access layer, the network should have the ability to access the 3G services such as ATM interface with IMA function. In addition, the traffic grooming should be provided to improve the bandwidth utility. In this paper, first we present the MCC network situation, the network planning model will be introduced. Then we present the topology architecture, node capacity and traffic forecast. At last, based on our analysis, we will give a total solution to MCC to build their metro optical network toward to the mesh network with the consideration of 3G services.

Optimal design of the cable metro with unified intermediate supports

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Lagerev A.V.

2017-12-01

Full Text Available In article was formulated and solved the problem of conditional nonlinear technical and economic optimization of the distance between intermediate supports, uniform in height, during the design of the cable metro lines in highly urban-ized city environment. The optimization problem involves a single-criterion objective function that expresses the cost of construction of the cable metro line (total cost of intermediate supports and their foundations, traction and carrying steel cables and technical equipment. The specified objective function subject to minimization by finding the optimal combination of the distance between intermediate supports and tension carrying ropes with accounting constructive, modal, structural and planning constraints in the form of nonlinear inequalities. The optimization algorithm was based on the direct method of optimization type, Hooke-Jeeves, which was modified taking into account the need of varying the height of intermediate supports with a constant step equal to the step of unification. When constructing the objective function were considered three possible forms sagging of carrying ropes, which can be implemented for various values of the efforts of their tension. Analysis was done of the influence of the step unification and minimum size of interme-diate supports on their optimum step, the cost of intermediate supports, the cost of 1 km cable metro line for different values of the angle of the longitudinal slope of the surface relief along the cable metro line. The graph of height of uni-fied supports from the angle of the longitudinal slope of the surface relief has discrete-step type. With the increase of the step unify the discreteness increases: the width of the range of angles of the longitudinal slope of the surface relief within which the height of the supports remains constant, increases. The graph of step installation of unified supports along the cable metro line from the angle of the longitudinal

Inferring Social Functions Available in the Metro Station Area from Passengers’ Staying Activities in Smart Card Data

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Yang Zhou

2017-12-01

Full Text Available The function of a metro station area is vital for city planners to consider when establishing a context-aware Transit-Oriented Development policy around the station area. However, the functions of metro station areas are hard to infer using the static land use distribution and other traditional survey datasets. In this paper, we propose a method to infer the functions occurring around the metro station catchment areas according to the patterns of staying activities derived from smart card data. We first define the staying activities by the spatial and temporal constraints of the two consecutive alighting and boarding records from the individual travel profile. Then we cluster and label the whole staying activities by considering the features of duration, frequency, and start time. By analyzing the percentage of different types of aggregated activities happening around each metro station, we cluster and explore the functions of the metro station area. Taking Wuhan as a case study, we analyze the results of Wuhan metro systems and discuss the similarities and differences between the functions and the land use distribution around the station area. The results show that although there exist some agreements, there is also a gap between the human activities and the land uses around the station area. These findings could give us deeper insight into how people act around the stations by metro systems, which will ultimately benefit the urban planning and policy development.

Measurement of ground and nearby building vibration and noise induced by trains in a metro depot.

Science.gov (United States)

Zou, Chao; Wang, Yimin; Wang, Peng; Guo, Jixing

2015-12-01

Metro depots are where subway trains are parked and where maintenance is carried out. They usually occupy the largest ground areas in metro projects. Due to land utilization problems, Chinese cities have begun to develop over-track buildings above metro depots for people's life and work. The frequently moving trains, when going into and out of metro depots, can cause excessive vibration and noise to over-track buildings and adversely affect the living quality of the building occupants. Considering the current need of reliable experimental data for the construction of metro depots, field measurements of vibration and noise on the ground and inside a nearby 3-story building subjected to moving subway trains were conducted in a metro depot at Guangzhou, China. The amplitudes and frequency contents of velocity levels were quantified and compared. The composite A-weighted equivalent sound levels and maximum sound levels were captured. The predicted models for vibration and noise of metro depot were proposed based on existing models and verified. It was found that the vertical vibrations were significantly greater than the horizontal vibrations on the ground and inside the building near the testing line. While at the throat area, the horizontal vibrations near the curved track were remarkably greater than the vertical vibrations. The attenuation of the vibrations with frequencies above 50 Hz was larger than the ones below 50 Hz, and the frequencies of vibration transmitting to adjacent buildings were mainly within 10-50 Hz. The largest equivalent sound level generated in the throat area was smaller than the testing line one, but the instantaneous maximum sound level induced by wheels squeal, contact between wheels and rail joints as well as turnout was close to or even greater than the testing line one. The predicted models gave a first estimation for design and assessment of newly built metro depots. Copyright © 2015 Elsevier B.V. All rights reserved.

Vibrómetro de fibra óptica codificado en frecuencia

OpenAIRE

Sánchez Prudencio, Guillermo

2013-01-01

En el presente proyecto se expone el desarrollo de un vibrómetro basado en fibra óptica. La motivación de este proyecto es el diseño de un sistema capaz de monitorizar las vibraciones de una máquina mediante el uso de tecnología láser y de fibra óptica. Mediante este sistema es posible el cálculo de la frecuencia y amplitud de la vibración de la máquina. El vibrómetro está basado en el principio de interferencia de la luz. Un haz de luz coherente proporcionado por un láser se divide en dos: u...

Clean/alternative fueled fleet programs - 1990 Amendments to the Clean Air Act, the Colorado Air Pollution Prevention and Control Act, and Denver City and County regulations

International Nuclear Information System (INIS)

Bowles, S.L.; Manderino, L.A.

1993-01-01

Despite substantial regulations for nearly two decades, attainment of this ambient standards for ozone and carbon monoxide (CO) remain difficult goals to achieve, Even with of ozone precursors and CO. The 1990 Amendments to the Clean Air Act (CAA90) prescribe further reductions of mobile source emissions. One such reduction strategy is using clean fuels, such as methanol, ethanol, or other alcohols (in blends of 85 percent or more alcohol with gasoline or other fuel), reformulated gasoline or diesel, natural gas, liquified petroleum gas, hydrogen, or electricity. There are regulatory measures involving special fuels which will be required in areas heavily polluted with ozone and CO. The state of Colorado recently passed the 1992 Air Pollution Prevention and Control Act which included provisions for the use of alternative fuels which will be implemented in 1994. In addition to adhering to the Colorado state regulations, the city and county of Denver also have regulations pertaining to the use of alternative fuels in fleets of 10 or more vehicles. Denver's program began in 1992. This paper will address the issue of fleet conversion and its impact on industry in Colorado, and Denver in particular

Optimized Skip-Stop Metro Line Operation Using Smart Card Data

Directory of Open Access Journals (Sweden)

Peitong Zhang

2017-01-01

Full Text Available Skip-stop operation is a low cost approach to improving the efficiency of metro operation and passenger travel experience. This paper proposes a novel method to optimize the skip-stop scheme for bidirectional metro lines so that the average passenger travel time can be minimized. Different from the conventional “A/B” scheme, the proposed Flexible Skip-Stop Scheme (FSSS can better accommodate spatially and temporally varied passenger demand. A genetic algorithm (GA based approach is then developed to efficiently search for the optimal solution. A case study is conducted based on a real world bidirectional metro line in Shenzhen, China, using the time-dependent passenger demand extracted from smart card data. It is found that the optimized skip-stop operation is able to reduce the average passenger travel time and transit agencies may benefit from this scheme due to energy and operational cost savings. Analyses are made to evaluate the effects of that fact that certain number of passengers fail to board the right train (due to skip operation. Results show that FSSS always outperforms the all-stop scheme even when most passengers of the skipped OD pairs are confused and cannot get on the right train.

Effects of the May 5-6, 1973, storm in the Greater Denver area, Colorado

Science.gov (United States)

Hansen, Wallace R.

1973-01-01

Rain began falling on the Greater Denver area the evening of Saturday, May 5, 1973, and continued through most of Sunday, May 6. Below about 7,000 feet altitude, the precipitation was mostly rain; above that altitude, it was mostly snow. Although the rate of fall was moderate, at least 4 inches of rain or as much as 4 feet of snow accumulated in some places. Sustained precipitation falling at a moderate rate thoroughly saturated the ground and by midday Sunday sent most of the smaller streams into flood stage. The South Platte River and its major tributaries began to flood by late Sunday evening and early Monday morning. Geologic and hydrologic processes activated by the May 5-6 storm caused extensive damage to lands and to manmade structures in the Greater Denver area. Damage was generally most intense in areas where man had modified the landscape--by channel constrictions, paving, stripping of vegetation and topsoil, and oversteepening of hillslopes. Roads, bridges, culverts, dams, canals, and the like were damaged or destroyed by erosion and sedimentation. Streambanks and structures along them were scoured. Thousands of acres of croplands, pasture, and developed urban lands were coated with mud and sand. Flooding was intensified by inadequate storm sewers, blocked drains, and obstructed drainage courses. Saturation of hillslopes along the Front Range caused rockfalls, landslides, and mudflows as far west as Berthoud Pass. Greater attention to geologic conditions in land-use planning, design, and construction would minimize storm damage in the future.

Metro Plaza za fasadom Rotermanna / Viktoria Jürmann

Index Scriptorium Estoniae

Jürmann, Viktoria

2008-01-01

Pandi nurgakivi Tallinnas Viru väljaku äärde rajatavale büroohoonele Metro Plaza. Säilitatakse vana fassaad, mille tõttu kujuneb hoone Viru väljaku ja Mere puiestee poolsel küljel kaetud galerii jalakäijatele. Projekteerisid Raivo Kotov ja Kaur Stöör

Energy resources of the Denver and Cheyenne Basins, Colorado - resource characteristics, development potential, and environmental problems. Environmental Geology 12

International Nuclear Information System (INIS)

Kirkham, R.M.; Ladwig, L.R.

1980-01-01

The geological characteristics, development potential, and environmental problems related to the exploration for and development of energy resources in the Denver and Cheyenne Basins of Colorado were investigated. Coal, lignite, uranium, oil and natural gas were evaluated. Emphasis is placed on environmental problems that may develop from the exploration for an extraction of these energy resources

The ''Stadtkante'' building at Dusseldorf. Representative address of the Metro Group; Die Stadtkante in Duesseldorf. Repraesentative Adresse der Metro Group

Energy Technology Data Exchange (ETDEWEB)

Zerres, E.

2006-07-01

The 'Stadtkante' building of the Metro Group was commissioned in June 2005. The building houses offices and a shopping mall. It has an aesthetically pleasing architecture and interesting technical features. (orig.)

Results of wellness examinations of 28 African hunting dog (Lycaon pictus puppies at the Denver Zoological Foundation

Directory of Open Access Journals (Sweden)

D.E. Kenny

2007-05-01

Full Text Available Since 2002 the Denver Zoological Foundation has produced 28 African hunting dog (Lycaon Pictus puppies in 3 litters (7, 14 and 7 pups from the same dam and sire. Wellness examinations were performed on each puppy. The wellness examinations spanned the range of 6-14 weeks of age. During the wellness examinations, in addition to physical examinations and vaccinations, blood samples for complete blood counts and sera biochemistry were obtained.Weights, morphometric measurements, rectal cultures for enteric pathogens and dental eruption patterns were recorded. Blood samples from each age group were compared with adult values from the Denver Zoo. It was noted that animals from the 14-pup litter were 63.6 % of the mean weight of the two 7-pup litters, but size differences (in, for example, total bodylength were less apparent. Two organisms were recovered from rectal cultures, namely Yersinia enterocolitica (n = 2 and Plesiomonas shigelloides (n = 3. The following deciduous eruption patterns were also noted; at 6 weeks, I1-3, i1-3, C1, c1, P1-2 and p1-2 (n=7 were present, at 9-10 weeks, P3 and p3 (n=21 , and finally at 12-14 weeks, P4 (n = 28.

El daminozide aumenta el diámetro de inflorescencia del crisantemo (Dendranthema grandiflora Tzvelev., cultivar polaris white

Directory of Open Access Journals (Sweden)

Á. G. Esquivel-Pool

2005-01-01

Full Text Available Se probaron varias concentraciones (1,000, 2,000, 3,000, 4,000 y 5,000 mg·litro-1 de daminozide sobre plantas de crisantemo cv. Polaris White, en maceta y se midieron el incremento del diámetro del tallo, altura de la planta, número de nudos, longitud de entrenudos, diámetro de la inflorescencia, biomasa y área foliar para comparar su efecto contra un testigo. La concentración de 1,000 mg·litro-1 provocó que los tallos incrementaran su diámetro 10.08 % en comparación con el testigo en tanto que con 4,000 mg·litro-1 el diámetro del tallo se redujo 8 %. Los entrenudos disminuyeron su longitud hasta 76 % con 4,000 mg·litro-1 en comparación con el testigo. Concentraciones iguales o mayores a 2,000 mg·litro-1 redujeron hasta en 34.3 % la altura de la planta. El daminozide favoreció el crecimiento de las inflorescencias incrementando su diámetro 31.22 % en promedio

Reducing Maladaptive Behaviors in Preschool-Aged Children with Autism Spectrum Disorder Using the Early Start Denver Model

OpenAIRE

Fulton, Elizabeth; Eapen, Valsamma; Črnčec, Rudi; Walter, Amelia; Rogers, Sally

2014-01-01

The presence of maladaptive behaviors in young people with autism spectrum disorder (ASD) can significantly limit engagement in treatment programs, as well as compromise future educational and vocational opportunities. This study aimed to explore whether the Early Start Denver Model (ESDM) treatment approach reduced maladaptive behaviors in preschool-aged children with ASD in a community-based long day care setting. The level of maladaptive behavior of 38 children with ASD was rated using an ...

Reducing maladaptive behaviors in preschool-aged children with Autism Spectrum Disorder using the Early Start Denver Model

OpenAIRE

Elizabeth eFulton; Elizabeth eFulton; Valsamma eEapen; Valsamma eEapen; Rudi eČrnčec; Amelia eWalter; Amelia eWalter; Sally eRogers

2014-01-01

The presence of maladaptive behaviors in young people with Autism Spectrum Disorder (ASD) can significantly limit engagement in treatment programs, as well as compromise future educational and vocational opportunities. This study aimed to explore whether the Early Start Denver Model (ESDM) treatment approach reduced maladaptive behaviors in preschool-aged children with ASD in a community-based long day care setting. The level of maladaptive behavior of 38 children with ASD was rated using an ...

Latinobarómetro 1997: Principales resultados

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Ismael CRESPO

2009-11-01

Full Text Available RESUMEN: El latinobarómetro es quizá la encuesta de opinión pública más importante que, cada año, analiza conjuntamente la realidad latinoamericana y española y que, además, permite la comparación de indicadores entre 18 países. Lo que se nos presenta a continuación son comentarios a los principales resultados extraídos en 1997, comparados con los obtenidos el año anterior, sobre aspectos como el desarrollo político e institucional y el estado de la democracia, junto a otras valoraciones de la realidad económica; ofreciéndonos, con ello, una clara descripción de la evolución de la opinión pública en estos países. Palabras clave: Latinobarómetro, opinión pública.ABSTRACT: The "latin-barometer" is perhaps the most important public opinion survey which analysies the latinamerican and the spanish situation together each year. Moreover it allows the comparition of indicators between eighteen countries. This paper shows the main results obtained during 1997. These results are compared with wihic were obtained on 1996. It comparies issues such as the instituctional and political development and the conditios of democracy; it linked to other valuations of the economic situation. These data offer us a clear description about the evoluction of public opinion in these countries.

Journalism and Academic Surgery: The Denver Post and The American Surgeon.

Science.gov (United States)

Nakayama, Don K

2015-07-01

Publication in professional journals is where advancements in surgery are reported and verified. Thus academic surgery holds common ground with journalism, where the principles of service, communication, and integrity are the basis of their public trust and standing in society. Writing for the Denver Post the author learned lessons that are relevant to academic surgery. Facts have to be solid. There are important issues to be discussed. Articles have to be interesting and not tiresome to read. And if it's something new--the essence of news--get it out there first. The American Surgeon embodies the same principles. The journal is a place where members of the Southeastern Surgical Congress discuss important matters, like surgical education, and share stories of interest, like a Japanese surgeon trying to treat victims of nuclear war. It is accessible yet disciplined, dedicated to advancing our field and fostering fellowship and communication among its members.

Metro de Washington EE.UU.

Directory of Open Access Journals (Sweden)

Weese, Harry

1979-09-01

Full Text Available This article describes the works involved in the first stage of the Washington Underground (Subway system which was begun in 1969 and scheduled for completion in 1983 and is the most modern metropolitan railway in North America. Lines have double track and will carry three million passengers daily. Different construction methods have been used throughout: tunnel formed try digging a trench then roofed and covered, excavated tunnel and elevated structures. Stations features answer to the strictest demands, provided with closed circuit television, air conditioning, noise dampening Systems, special access ways, fire protection Systems and automatic traffic control. Special attention is given to the two bridges over the Pentagon and over the Anacostia, pointing out their differences and the elevated structure at the National Airport.

Se describen en este articulo los trabajos de la primera fase del Metro de Washington que, iniciado en el año 1969 será, a su terminación en el año 1983, el más moderno sistema de ferrocarril metropolitano de Norte América. Es de doble carril y servirá para tres millones de usuarios. Se han empleado distintos sistemas de obra en su realización: túnel artificial realizado mediante una zanja que después se cubre; túnel perforado, y estructuras aéreas. Las características de las estaciones responden a las mayores exigencias, pues tienen circuito cerrado de televisión, aire acondicionado, sistemas para atenuar el ruido, accesos especiales, sistema de protección contra el fuego y control automático del Metro. Se estudian de un modo particular: los dos puentes sobre el Pentágono y el Anacostia, señalando sus diferencias y la estructura aérea del Aeropuerto Nacional.

Pengaruh Kualitas Pelayanan Dan Nilai Pelanggan Terhadap Kepuasan Dan Loyalitas Pelanggan Trans Metro Pekanbaru

OpenAIRE

Harpadeles, Ian; ', Jushermi; Nursanti, Aida

2016-01-01

This study aims to measure the impact of service quality and customer value on customer satisfaction and loyalty Trans Metro Pekanbaru. The population in this study is the Trans Metro Pekanbaru customers with a total sample of 100 respondents, using purposive sampling technique. Analysis of data using path analysis with SPSS version 17.0. The results showed that the variables of service quality significantly influence customer satisfaction. Customer value significantly influence customer sati...

MODIFICACIÓN DE OLFATÓMETROS DE CUATRO BRAZOS PARA EXPERIMENTACIÓN EN BROCA DEL CAFÉ, HYPOTHENEMUS HAMPEI FERRARI (COLEOPTERA: CURCULIONIDAE

Directory of Open Access Journals (Sweden)

Arturo Pacheco

2012-01-01

tratamiento en cada olfatómetro. En el olfatómetro de 90° los insectos se vieron claramente atraídos al brazo que contenía el atrayente, con un porcentaje del 45%, mientras que el olfatómetro de 30° tan solo alcanzó un 1,5% de atracción. Las observaciones realizadas durante estas pruebas dejaron en evidencia que las estrategias de ingreso de los insectos a los olfatómetros y el área de ambientación influyeron de manera importante en estos resultados. En una segunda etapa se evaluó el olfatómetro de 90º, al comparar los promedios de atracción de cada uno de sus 4 brazos, y se verificó que las diferencias de atracción en cada brazo no fueron significativas (p<=0,05. Se concluye que el diseño del olfatómetro de 90º es apropiado para realizar pruebas de atracción a compuestos volátiles en hembras adultas de H. hampei.

Early Start Denver Model. Un modello Evidence Based per l’intervento educativo precoce nei Disturbi dello Spettro Autistico

OpenAIRE

Saverio Fontani

2016-01-01

The Autism Spectrum Disorders represents one of the most complex developmental disabilities for the massive deficit of communication competences. The social disability related to disorders is the main objective of the intervention of the Early Start Denver Model – ESDM (Rogers & Dawson, 2010), which can be considered as one of the most advanced models for early educational intervention according the perspective of Evidence Based Education. In this paper the theoretical foundations of the ...

The economic cost of air pollution in Mangaung metro municipality ...

African Journals Online (AJOL)

The economic cost of air pollution in Mangaung metro municipality: A case study in South Africa. ... the significance of air quality, to value the benefits of air pollution control ... Key words: Air pollution, air quality, workdays lost, mitigating cost.

Beheersstrategiën Amstelveenlijn voor integratie tram en metro

NARCIS (Netherlands)

Muller, T.H.J.; Hakkesteegt, P.

1987-01-01

Rapport in opdracht van GVB Amsterdam. In deze studie is nagegaan of het mogelijk is de diensten op de Amstelveenlijn in de richting CS, die deels voeren over het metrotrajekt, zo uit te voeren, dat invoegen op de halte Spaklerweg mogelijk is zonder hinder voor de metro-exploitatie. De centrale

Metro-Wordle: An Interactive Visualization for Urban Text Distributions Based on Wordle

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Chenlu Li

2018-03-01

Full Text Available With the development of cities and the explosion of information, vast amounts of geo-tagged textural data about Points of Interests (POIs have been generated. Extracting useful information and discovering text spatial distributions from the data are challenging and meaningful. Also, the huge numbers of POIs in modern cities make it important to have efficient approaches to retrieve and choose a destination. This paper provides a visual design combing metro map and wordles to meet the needs. In this visualization, metro lines serve as the divider lines splitting the city into several subareas and the boundaries to constrain wordles within each subarea. The wordles are generated from keywords extracted from the text about POIs (including reviews, descriptions, etc. and embedded into the subareas based on their geographical locations. By generating intuitive results and providing an interactive visualization to support exploring text distribution patterns, our strategy can guide the users to explore urban spatial characteristics and retrieve a location efficiently. Finally, we implement a visual analysis of the restaurants data in Shanghai, China as a case study to evaluate our strategy. Keywords: Text visualization, Location retrieval, Urban data, Metro map, Word cloud

Análisis de parámetros objetivos y subjetivos en Pre-Amplificadores de Audio

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Javier A. Beltrán Bríñez

2014-03-01

Full Text Available El siguiente artículo explica los resultados de las mediciones en cinco (5 diferentes pre-amplificadores, entre estado sólido y válvulas al vacío, de parámetros objetivos de THD –Análisis de Fourier- y función de transferencia, y parámetros subjetivos de calidez y brillo, en una muestra no probabilística de expertos con ingenieros de grabación que cuentan con una experiencia entre quince (15 y veinticinco (25 años, con el fin de encontrar una correspondencia directa entre estos parámetros y determinar qué elementos electrónicos están relacionados con la percepción auditiva de calidez y brillo en una grabación realizada con estos dispositivos.

Value of Clean Water Resources: Estimating the Water Quality Improvement in Metro Manila, Philippines

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Shokhrukh-Mirzo Jalilov

2017-12-01

Full Text Available While having many positive impacts, a tremendous economic performance and rapid industrial expansion over the last decades in the Philippines has had negative effects that have resulted in unfavorable hydrological and ecological changes in most urban river systems and has created environmental problems. Usually, these effects would not be part of a systematic assessment of urban water benefits. To address the issue, this study investigates the relationship between poor water quality and resident’s willingness to pay (WTP for improved water quality in Metro Manila. By employing a contingent valuation method (CVM, this paper estimates the benefits of the provision of clean water quality (swimmable and fishable in waterbodies of Metro Manila for its residents. Face-to-face interviews were completed with 240 randomly selected residents. Residents expressed a mean WTP of PHP102.44 (USD2.03 for a swimmable water quality (good quality and a mean WTP of PHP102.39 (USD2.03 for fishable water quality (moderate quality. The aggregation of this mean willingness-to-pay value amounted to annual economic benefits from PHP9443 billion to PHP9447 billion (approx. USD190 million per year for all taxpayers in Metro Manila. As expected, these estimates could inform local decision-makers about the benefits of future policy interventions aimed at improving the quality of waterbodies in Metro Manila.

Influencia de los parámetros de proceso, en el comportamiento del parámetro vibración absoluta en turbinas de vapor. // Influence of process parameters of the behaviour of absolute vibration parameters in steam turbine.

Directory of Open Access Journals (Sweden)

F. de la Torre Silva

2008-01-01

Full Text Available Este trabajo muestra el estudio realizado en turbinas de vapor de pequeña capacidad de generación de las centralestermoeléctricas cubanas, relacionadas con la influencia estadística entre parámetros de proceso de la turbina, respecto alparámetro vibración absoluta, medidos en las chumaceras de la turbina. Se utilizan las bases de datos de los sistemas demonitoreado on-line de la turbina. Se exponen las relaciones existentes entre los principales parámetros seleccionados paraeste estudio.Palabras claves: Monitorado on-line, Monitorado de la condición, Parámetros de proceso, Vibraciónabsoluta, Turbinas de vapor.______________________________________________________________________________AbstractThis work show the estudy in small steam turbine capacity of generation in cubans thermoelectric power station to relative withstatistical influence between steam process parameters regarding absolute vibration parameter, in the steam housing measurements.Themselves use database as steam on-line monitoring systems. Expose the existing relation between the principal selection parametersfor this study.Key Words: On.line monitoring, Condition monitoring, Process parameters, Absolute vibration, SteamTurbine.

Denver Radium Site -- Operable Unit I closeout report for the US Environmental Protection Agency

International Nuclear Information System (INIS)

1992-08-01

The Denver Radium Site consists of properties in the Denver, Colorado, area having radioactive contamination left from radium processing in the early 1900s. The properties are divided into 11 gaps or operable units to facilitate remedial action of the Site. Operable Unit I is an 8-acre block bounded by Quivas Street to the east, Shoshone Street to the west, West 12th Avenue to the south, and West 13th Avenue to the north. The primary focus of interest concerning investigations of radiological contamination was a radium, vanadium, and uranium processing facility at 1201 Quivas Street owned by the Pittsburgh Radium Company (PRC) from 1925 until 1926. The Radium Ores Company, which was associated with PRC, operated the facility until 1927. A Remedial investigation (RI) of Operable Unit I was prepared by Jacobs Engineering Group and CH 2 M Hill on behalf of EPA in April 1986. The draft Feasibility Study (FS), prepared by Jacobs Engineering Group and CH 2 M Hill, was issued in July 1987 (the final FS is the Community Relations Responsiveness Summary with an errata to the draft, issued September 1987). The RI focused on radium uranium processing residues discarded in the early 1900s. These residues contained uranium, radium, and thorium. EPA s Community Relations Plan involved the community in the decision-making process relating to the remedy to be implemented at Operable Unit X, and promoted communications among interested parties throughout the course of the project. The remedial action alternative preferred by EPA for Operable Unit I was Off-Site Permanent Disposal. Because a permanent disposal facility was not available at the time the Record of Decision was issued in September 1987, EPA selected the On-Site Temporary Containment (capping) with the Off-Site Permanent Disposal alternative

Self-Reported Efficacy of Cannabis and Other Complementary Medicine Modalities by Parkinson’s Disease Patients in Colorado

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Taylor Andrew Finseth

2015-01-01

Full Text Available Introduction. Complementary and alternative medicine (CAM is frequently used by Parkinson’s disease (PD patients. We sought to provide information on CAM use and efficacy in PD patients in the Denver metro area with particular attention to cannabis use given its recent change in legal status. Methods. Self-administered surveys on CAM use and efficacy were completed by PD patients identified in clinics and support groups across the Denver metro area between 2012 and 2013. Results. 207 patients (age 69±11; 60% male completed the survey. Responses to individual CAM therapy items showed that 85% of respondents used at least one form of CAM. The most frequently reported CAMs were vitamins (66%, prayer (59%, massage (45%, and relaxation (32%. Self-reported improvement related to the use of CAM was highest for massage, art therapy, music therapy, and cannabis. While only 4.3% of our survey responders reported use of cannabis, it ranked among the most effective CAM therapies. Conclusions. Overall, our cross-sectional study was notable for a high rate of CAM utilization amongst PD patients and high rates of self-reported efficacy across most CAM modalities. Cannabis was rarely used in our population but users reported high efficacy, mainly for nonmotor symptoms.

Future Scenarios for Software-Defined Metro and Access Networks and Software-Defined Photonics

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Tommaso Muciaccia

2017-01-01

Full Text Available In recent years, architectures, devices, and components in telecommunication networks have been challenged by evolutionary and revolutionary factors which are drastically changing the traffic features. Most of these changes imply the need for major re-configurability and programmability not only in data-centers and core networks, but also in the metro-access segment. In a wide variety of contexts, this necessity has been addressed by the proposed introduction of the innovative paradigm of software-defined networks (SDNs. Several solutions inspired by the SDN model have been recently proposed also for metro and access networks, where the adoption of a new generation of software-defined reconfigurable integrated photonic devices is highly desirable. In this paper, we review the possible future application scenarios for software-defined metro and access networks and software-defined photonics (SDP, on the base of analytics, statistics, and surveys. This work describes the reasons underpinning the presented radical change of paradigm and summarizes the most significant solutions proposed in literature, with a specific emphasis to physical-layer reconfigurable networks and a focus on both architectures and devices.

Collective efficacy in Denver, Colorado: Strengthening neighborhoods and health through community gardens.

Science.gov (United States)

Teig, Ellen; Amulya, Joy; Bardwell, Lisa; Buchenau, Michael; Marshall, Julie A; Litt, Jill S

2009-12-01

Community gardens are viewed as a potentially useful environmental change strategy to promote active and healthy lifestyles but the scientific evidence base for gardens is limited. As a step towards understanding whether gardens are a viable health promotion strategy for local communities, we set out to examine the social processes that might explain the connection between gardens, garden participation and health. We analyzed data from semi-structured interviews with community gardeners in Denver. The analysis examined social processes described by community gardeners and how those social processes were cultivated by or supportive of activities in community gardens. After presenting results describing these social processes and the activities supporting them, we discuss the potential for the place-based social processes found in community gardens to support collective efficacy, a powerful mechanism for enhancing the role of gardens in promoting health.

Evaluation of Fast-Time Wake Models Using Denver 2006 Field Experiment Data

Science.gov (United States)

Ahmad, Nash’at N.; Pruis, Matthew J.

2015-01-01

The National Aeronautics and Space Administration conducted a series of wake vortex field experiments at Denver in 2003, 2005, and 2006. This paper describes the lidar wake vortex measurements and associated meteorological data collected during the 2006 deployment, and includes results of recent reprocessing of the lidar data using a new wake vortex algorithm and estimates of the atmospheric turbulence using a new algorithm to estimate eddy dissipation rate from the lidar data. The configuration and set-up of the 2006 field experiment allowed out-of-ground effect vortices to be tracked in lateral transport further than any previous campaign and thereby provides an opportunity to study long-lived wake vortices in moderate to low crosswinds. An evaluation of NASA's fast-time wake vortex transport and decay models using the dataset shows similar performance as previous studies using other field data.

Exploring ethical conflicts in emergency trauma research: the COMBAT (Control of Major Bleeding after Trauma) study experience.

Science.gov (United States)

Chin, Theresa L; Moore, Ernest E; Coors, Marilyn E; Chandler, James G; Ghasabyan, Arsen; Harr, Jeffrey N; Stringham, John R; Ramos, Christopher R; Ammons, Sarah; Banerjee, Anirban; Sauaia, Angela

2015-01-01

Up to 25% of severely injured patients develop trauma-induced coagulopathy. To study interventions for this vulnerable population for whom consent cannot be obtained easily, the Food and Drug Administration issued regulations for emergency research with an exception from informed consent (ER-EIC). We describe the community consultation and public disclosure (CC/PD) process in preparation for an ER-EIC study, namely the Control Of Major Bleeding After Trauma (COMBAT) study. The CC/PD was guided by the four bioethical principles. We used a multimedia approach, including one-way communications (newspaper ads, brochures, television, radio, and web) and two-way communications (interactive in-person presentations at community meetings, printed and online feedback forms) to reach the trials catchment area (Denver County's population: 643,000 and the Denver larger metro area where commuters reside: 2.9 million). Particular attention was given to special-interests groups (eg, Jehovah Witnesses, homeless) and to Spanish-speaking communities (brochures and presentations in Spanish). Opt-out materials were available during on-site presentations or via the COMBAT study website. A total of 227 community organizations were contacted. Brochures were distributed to 11 medical clinics and 3 homeless shelters. The multimedia campaign had the potential to reach an estimated audience of 1.5 million individuals in large metro Denver area, the majority via one-way communication and 1900 in two-way communications. This resource intensive process cost more than $84,000. The CC/PD process is resource-intensive, costly, and complex. Although the multimedia CC/PD reached a large audience, the effectiveness of this process remains elusive. The templates can be helpful to similar ER-EIC studies. Copyright © 2015 Elsevier Inc. All rights reserved.

Characteristics and chemical compositions of particulate matter collected at the selected metro stations of Shanghai, China

Energy Technology Data Exchange (ETDEWEB)

Guo, Li; Hu, Yunjie; Hu, Qingqing [Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai 200433 (China); Lin, Jun [Key Laboratory of Nuclear Analysis Techniques, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800 (China); Li, Chunlin; Chen, Jianmin [Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai 200433 (China); Li, Lina [Key Laboratory of Nuclear Analysis Techniques, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800 (China); Fu, Hongbo [Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai 200433 (China)

2014-10-15

A campaign was conducted to assess and compare the air quality at the different metro platforms at Shanghai City, focusing on particulate matter (PM) levels, chemical compositions, morphology and mineralogy, as well as species of iron. Our results indicated that the average PM{sub 2.5} concentrations for the three metro lines were 177.7 μg/m{sup 3}, 105.7 μg/m{sup 3} and 82.5 μg/m{sup 3}, respectively, and the average PM{sub 1} concentrations for the three lines were 122.3 μg/m{sup 3}, 84.1 μg/m{sup 3} and 59.6 μg/m{sup 3}, respectively. Fe, Mn, Cr, Cu, Sr, Ba and Pb concentrations in all of the sampling sites were significantly higher than that in the urban ambient air, implicating that these trace metals may be associated with the metro systems working. Individual airborne dusts were studied for morphology and mineralogy characteristics. The results revealed that the presence of most individual particles were with no definite shape and most of them were with a large metal content. Furthermore, Fe-rich particles had significantly higher abundance in the metro systems, which were more frequently encountered in the underground lines than the aboveground line. The 2D distribution map of an interested Fe-rich particle showed an uneven Fe distribution, implying that a hollow or core of other substance exists in the particle center during the formation process. Cluster analysis revealed that Fe-rich particles were possibly a mixture of Fe species. Fitting of X-ray absorption near-edge fine structure spectra (XANES) showed the main iron species within the particles collected from the three contrasting metro lines of Shanghai to be hematite, magnetite, iron-metal and mineral Fe. Hematite and mineral Fe were all found in three lines, while magnetite only existed in aboveground metro line. Iron-metal was determined in both the older and younger underground lines, based on the X-ray diffraction (XRD) analysis. As diverse Fe species have different physical�

Protótipo do primeiro interferômetro brasileiro - BDA

Science.gov (United States)

Cecatto, J. R.; Fernandes, F. C. R.; Neri, J. A. C. F.; Bethi, N.; Felipini, N. S.; Madsen, F. R. H.; Andrade, M. C.; Soares, A. C.; Alonso, E. M. B., Sawant, H. S.

2004-04-01

A interferometria é uma poderosa ferramenta usada para investigar estruturas espaciais de fontes astrofísicas fornecendo uma riqueza de detalhes inatingível pelas técnicas convencionais de imageamento. Em particular, a interferometria com ondas de rádio abre o horizonte de conhecimento do Universo nesta ampla banda do espectro eletromagnético, que vai de cerca de 20 kHz até centenas de GHz já próximo ao infravermelho, e que está acessível a partir de instrumentos instalados em solo. Neste trabalho, apresentamos o interferômetro designado por Arranjo Decimétrico Brasileiro (BDA). Trata-se do primeiro interferômetro a ser desenvolvido no Brasil e América Latina que já está em operação na fase de protótipo. Apresentamos o desenvolvimento realizado até o momento, o sítio de instalação do instrumento, o protótipo e os principais resultados dos testes de sua operação, as perspectivas futuras e a ciência a ser desenvolvida com o instrumento nas fases II e III. Neste trabalho é dada ênfase ao desenvolvimento, testes de operação e principais resultados do protótipo. É discutida brevemente a ciência que pode ser feita com o instrumento. Tanto os detalhes técnicos quanto os principais parâmetros estimados para o instrumento nas próximas fases de desenvolvimento e o desempenho do protótipo serão publicados em breve.

The evaluation of radiation level and dose of workers in Guangzhou metro line 1

International Nuclear Information System (INIS)

Zhang Lin; Hu Canyun; Meng Xiaolian; He Zhan

2006-01-01

Objective: To find out the level of radiation and effective dose of workers in Guangzhou Metro line 1. Methods: In metro stations, external Gamma-ray exposure rates were obtained by FD-71A radiance measurer, 222 Rn and 220 Rn concentrations were obtained by using Rn-Tn solid state nuclear track detectors developed by The National Institute for Radiological Protection and Nuclear Safety, Chinese Centre for Disease Control. The annual Effective dose from Gamma, 222 Rn and 220 Rn were calculated. Results: The external Gamma-ray exposure average rate is 17.74 x 10 -8 Gy/h. The average concentration of 222 Rn is 59.8 Bq/m 3 . The average concentration of 220 Rn is 32.1 Bq/m 3 . The total annual effective dose from Gamma, 222 Rn and 220 Rn is 2.878 mSv/a. Conclusion: In the stations of Guangzhou in metro line 1, no more effective radiation dose to the workers has measured. (authors)

Application Analysis of BIM Technology in Metro Rail Transit

Science.gov (United States)

Liu, Bei; Sun, Xianbin

2018-03-01

With the rapid development of urban roads, especially the construction of subway rail transit, it is an effective way to alleviate urban traffic congestion. There are limited site space, complex resource allocation, tight schedule, underground pipeline complex engineering problems. BIM technology, three-dimensional visualization, parameterization, virtual simulation and many other advantages can effectively solve these technical problems. Based on the project of Shenzhen Metro Line 9, BIM technology is innovatively researched throughout the lifecycle of BIM technology in the context of the metro rail transit project rarely used at this stage. The model information file is imported into Navisworks for four-dimensional animation simulation to determine the optimum construction scheme of the shield machine. Subway construction management application platform based on BIM and private cloud technology, the use of cameras and sensors to achieve electronic integration, dynamic monitoring of the operation and maintenance of underground facilities. Make full use of the many advantages of BIM technology to improve the engineering quality and construction efficiency of the subway rail transit project and to complete the operation and maintenance.

Uranium deposits: northern Denver Julesburg basin, Colorado

International Nuclear Information System (INIS)

Reade, H.L.

1978-01-01

The Fox Hills Sandstone and the Laramie Formation (Upper Cretaceous) are the host rocks for uranium deposits in Weld County, northern Denver Julesburg basin, Colorado. The uranium deposits discovered in the Grover and Sand Creek areas occur in well-defined north--south trending channel sandstones of the Laramie Formation whereas the sandstone channel in the upper part of the Fox Hills Sandstone trends east--west. Mineralization was localized where the lithology was favorable for uranium accumulation. Exploration was guided by log interpretation methods similar to those proposed by Bruce Rubin for the Powder River basin, Wyoming, because alteration could not be readily identified in drilling samples. The uranium host rocks consist of medium- to fine-grained carbonaceous, feldspathic fluvial channel sandstones. The uranium deposits consist of simple to stacked roll fronts. Reserve estimates for the deposits are: (1) Grover 1,007,000 lbs with an average grade of 0.14 percent eU 3 O 8 ,2) Sand Creek 154,000 lbs with an average grade of 0.08 percent eU 3 O 8 , and 3) The Pawnee deposit 1,060,000 lbs with an average grade of 0.07 percent eU 3 O 8 . The configuration of the geochemical cells in the Grover and Sand Creek sandstones indicate that uraniferous fluids moved northward whereas in the Pawnee sandstone of the Fox Hills uraniferous fluids moved southward. Precipitation of uranium in the frontal zone probably was caused by downdip migration of oxygcnated groundwater high in uranium content moving through a favorable highly carbonaceous and pyritic host sandstone

Forecasting of passenger traffic in Moscow metro applying artificial neural networks

International Nuclear Information System (INIS)

Ivanov, V.V.; Natsional'nyj Issledovatel'skij Yadernyj Univ. MIFI, Moscow; FKU Rostransmodernizatsiya, Moscow

2016-01-01

Methods for the forecasting of passenger traffic in Moscow metro have been developed using artificial neural networks. To this end, the factors primarily determining passenger traffic in the subway have been analyzed and selected [ru

Diâmetro de estacas e substratos na propagação vegetativa de maniçoba, Manihot glaziovii Muell. Arg

OpenAIRE

Ferreira,Leonardo Elias; Andrade,Leonaldo Alves de; Gonçalves,Gerlandio Suassuna; Souza,Eliziete Pereira de; Ferreira,Heriverta Virgínio

2010-01-01

Objetivou-se com este trabalho estudar a influência do diâmetro das estacas e dos substratos na propagação vegetativa de maniçoba, Manihot glaziovii Muell. Arg. Utilizou-se o delineamento em blocos casualizados em esquema fatorial 10 x 3, sendo 10 substratos e 3 diâmetros de estacas, totalizando 30 tratamentos, oriundos das combinações entre substratos e diâmetros de estacas, com 4 repetições e 8 estacas por parcela. Os diâmetros das estacas corresponderam a: 0,5 a 1,0 cm (D1); 1,1 a 2,0 cm (...

Proposed Regulation of Fuels and Fuel Additives: Federal Volatility Control Program in the Denver-Boulder-Greeley-Ft. Collins-Loveland, Colorado, 1997 8-Hour Ozone Nonattainment Area

Science.gov (United States)

This notice proposes establishing an applicable standard of 7.8 pounds (psi) Reid vapor pressure under the federal volatility control program, in the Denver-Boulder-Greeley-Ft. Collins-Loveland, Colorado, 1997 8-hour ozone nonattainment area.

Variability of levels and composition of PM10 and PM2.5 in the Barcelona metro system

Directory of Open Access Journals (Sweden)

E. de Miguel

2012-06-01

Full Text Available From an environmental perspective, the underground metro system is one of the cleanest forms of public transportation in urban agglomerations. Current studies report contradicting results regarding air quality in the metro systems: whereas some reveal poor air quality, others report PM levels which are lower or of the same order of magnitude than those measured in traffic sites above ground level. The present work assesses summer and winter indoor air quality and passenger exposure in the Barcelona metro, focusing on PM levels and their metal contents. In addition, the impact on indoor air quality of platform screen door systems (automated systems consisting of closed rail track and platforms is evaluated, to determine whether these systems reduce passenger exposure to PM when compared with conventional systems (open tracks and platforms. In the Barcelona metro PM levels inside the trains in summer are amongst the lowest reported for worldwide metro systems (11–32 μg m−3 PM2.5. This is most likely due to the air conditioning system working in all carriages of the Barcelona metro during the whole year. Levels were considerably higher on the platforms, reaching mean levels of 46 and 125 μg m3 in the new (L9 and old (L3 lines, respectively. PM10 data are also reported in the present study, but comparison with other metro systems is difficult due to the scarcity of data compared with PM2.5. Results showed distinct PM daily cycles, with a drastic increase from 06:00 to 07:00 a.m., a diurnal maximum from 07:00 to 10:00 p.m., and marked decrease between 10:00 p.m. and 05:00 a.m. The elements with the highest enrichment were those associated with wheel or brake abrasion products (Ba, Fe, Cu, Mn, Cr, Sb, As, Mo, Co, Sr, among others. Laminar hematite (Fe2O3 was the dominant particle type, being mainly originated by mechanical abrasion of the rail track and wheels. Regarding passenger exposure to PM, the contribution of commuting by metro was

Abstracts for the 4th Annual Congress on Medicine & Science in Ultra-Endurance Sports, May 30, 2017, Denver, Colorado.

Science.gov (United States)

2017-04-01

The 4th Annual Congress on Medicine & Science in Ultra-Endurance Sports will be held on May 30, 2017, in Denver, Colorado. While prior meetings have been multiple-day events, the 2017 Congress will be an intense 1-day preconference to the American College of Sports Medicine annual meeting. Details of this Congress, as well as past and future meetings, can be found at the Ultra Sports Science Foundation Web site: http://ultrasportsscience.us.

Sala de exhibiciones Currigan Denver (EE.UU.

Directory of Open Access Journals (Sweden)

Muchow, -

1978-04-01

Full Text Available The exhibition hall designed, of a multifunctional type, includes a main hall covering 9,400 m² and a 14,900 m² basement, intended mainly for mechanical installations, facilities and car-parks. It also has an additional area of 4,700 m² distributed in a 'twen floor, organized the length of the inner construction perimeter which houses: offices, rest rooms, and the light and sound control cabins. Worth special mention is the solution adopted for the enormous structure of the roof —with spans close on 75 m—, which relegate the vertical supports to the perimeter, leaving the hall area obstacle-free, which enables it to be used as a whole or subdivided into parts to form up to 600 small exhibition stands. The space framework making up the roofing, executed in white painted metal sections, remains entirely visible, taking advantage of its geometrical movement with plastic and esthetic aims, so that the structural working needs combine with the architectural design.

La sala de exhibiciones proyectada, de tipo multifuncional, comprende un salón principal de 9.400 m², y un sótano de 14.900 m² destinado fundamentalmente a instalaciones mecánicas, servicios y aparcamientos. Cuenta, además, con una superficie suplementaria de 4.700 m² distribuidos en una entreplanta organizada a lo largo del perímetro interior de la construcción, que alberga: oficinas, salas de descanso y las cabinas de control de luz y sonido. Destaca la solución adoptada para la enorme estructura de cubierta —con luces próximas a los 75 m—, que relega los apoyos verticales al perímetro, dejando libre de obstáculos la superficie de la sala, la cual puede ser utilizada en su conjunto o subdividirse en partes para la formación de hasta 600 pequeños stands de exposición. El entramado espacial que constituye dicha cubierta, realizado en perfilería metálica pintada de blanco, permanece

Belgrade metro studies

Directory of Open Access Journals (Sweden)

Biljana Arandjelović

2009-01-01

Full Text Available The subway system is an indispensable part of every modern metropolis. Building a subway is no longer a matter of prestige but a necessity, a consequence of the traffic revolution worldwide. This paper shows four metro studies with specific reference to the Belgrade subway and problems that occurred. The first one was conducted in 1946 by the famous Serbian architect Nikola Dobrovic. This document is indeed the first written record discussing the subway issue in Belgrade. The next study dates back to 1968. This project was the first major study on the possibility of a subway. The third and biggest, this subway study was completed in 1982 and contained a major and comprehensive subway project. This project was officially accepted and enacted by the city government. The fourth project in circulation with regard to the subway is the light city railway project. It came out due to the consequences of the decision that a classical subway was not necessary in Belgrade, so that a replacement for the classical subway system was to be undertaken. The light city railway project was adopted as a part of the General Urban Plan for Belgrade by the year 2021.

Dissatisfaction with Democracy: Evidence from the Latinobarómetro 2005 Insatisfacción con la Democracia: Evidencia de Latinobarómetro 2005

Directory of Open Access Journals (Sweden)

Brian J. L. Berry

2010-01-01

Full Text Available Data for 17 Latin American countries collected by Latinobarómetro 2005 reveal that dissatisfaction with democracy is a sign of progress. Political stability and increased governmental effectiveness enable the better-educated leftish young to express their feelings without fear of repression and violence, which is particularly notable in countries least connected into the global economy, where inequality remains high. Dissatisfaction is thus an indicator of political modernization running ahead of progress in the economic sphere. Datos de 17 países Latinoamericanos recolectados por Latinobarómetro 2005 revelan que la insatisfacción con la democracia es un signo de progreso. La  estabilidad política y la mejor efectividad gubernamental permite a los jovenes de izquierda mejor educados a expresar sus sentimientos sin el temor de represión y violencia, que es particularmente notable en países que están menos conectados en la economía global, donde la desigualdad permanece alta. La insatisfacción es por tanto un indicador de la modernización política que va adelante del progreso en la esfera económica.

Effectiveness and Feasibility of the Early Start Denver Model Implemented in a Group-Based Community Childcare Setting

OpenAIRE

Vivanti, G; Paynter, J; Duncan, E; Fothergill, H; Dissanayake, C; Rogers, SJ; the, VASELCCT

2014-01-01

© 2014, Springer Science+Business Media New York. A recent study documented the efficacy of the Early Start Denver Model (ESDM) delivered in a 1:1 fashion. In the current study we investigated the effectiveness and feasibility of the ESDM in the context of a long-day care community service, with a child-staff ratio of 1:3. Outcomes of 27 preschoolers with ASD undergoing 15–25 h per week of ESDM over 12 months were compared to those of 30 peers with ASD undergoing a different intervention prog...

3D Adaptive Virtual Exhibit for the University of Denver Digital Collections

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Shea-Tinn Yeh

2015-07-01

Full Text Available While the gaming industry has taken the world by storm with its three-dimensional (3D user interfaces, current digital collection exhibits presented by museums, historical societies, and libraries are still limited to a two-dimensional (2D interface display. Why can’t digital collections take advantage of this 3D interface advancement? The prototype discussed in this paper presents to the visitor a 3D virtual exhibit containing a set of digital objects from the University of Denver Libraries’ digital image collections, giving visitors an immersive experience when viewing the collections. In particular, the interface is adaptive to the visitor’s browsing behaviors and alters the selection and display of the objects throughout the exhibit to encourage serendipitous discovery. Social media features were also integrated to allow visitors to share items of interest and to create a sense of virtual community.

Evaluating accessibility to Bangkok Metro Systems using multi-dimensional criteria across user groups

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Duangporn Prasertsubpakij

2012-07-01

Full Text Available Metro systems act as fast and efficient transport systems for many modern metropolises; however, enhancing higher usage of such systems often conflicts with providing suitable accessibility options. The traditional approach of metro accessibility studies seems to be an ineffective measure to gage sustainable access in which the equal rights of all users are taken into account. Bangkok Metropolitan Region (BMR transportation has increasingly relied on the role of two mass rapid transport systems publicly called “BTS Skytrain” and “MRT Subway”, due to limited availability of land and massive road congestion; however, access to such transit arguably treats some vulnerable groups, especially women, the elderly and disabled people unfairly. This study constructs a multi-dimensional assessment of accessibility considerations to scrutinize how user groups access metro services based on BMR empirical case. 600 individual passengers at various stations were asked to rate the questionnaire that simultaneously considers accessibility aspects of spatial, feeder connectivity, temporal, comfort/safety, psychosocial and other dimensions. It was interestingly found by user disaggregated accessibility model that the lower the accessibility perceptions—related uncomfortable and unsafe environment conditions, the greater the equitable access to services, as illustrated by MRT — Hua Lumphong and MRT — Petchaburi stations. The study suggests that, to balance the access priorities of groups on services, policy actions should emphasize acceptably safe access for individuals, cost efficient feeder services connecting the metro lines, socioeconomic influences and time allocation. Insightful discussions on integrated approach balancing different dimensions of accessibility and recommendations would contribute to accessibility-based knowledge and potential propensity to use the public transits towards transport sustainability.

An analysis of the demographic, educational, and employment characteristics of participants in the continuing education program of the Medical Library Association, Denver, Colorado, June 1968.

Science.gov (United States)

Rees, A M; Rothenberg, L

1970-04-01

A survey was performed to elicit details about attendees of the continuing education program given in Denver at the 1968 MLA Annual Meeting. Factors considered included sex, age, geographic distribution, professional mobility, educational background, current jobs, and interest in further continuing education.

Audiotermômetro: um termômetro para a inclusão de estudantes com deficiência visual

OpenAIRE

Cordova, Hercílio P.; Aguiar, Carlos E.; Amorim, Helio S. de; Sathler, Karla Silene O. M.; Santos, Antônio Carlos F. dos

2017-01-01

Neste trabalho apresentamos os detalhes técnicos de construção de um termômetro em que as medidas de temperatura são audíveis. Inicialmente planejado para atender estudantes com deficiência visual em atividades práticas de termometria, o projeto se mostra perfeitamente adaptável para medir uma variedade de outras grandezas físicas. O projeto é baseado na placa Arduino Uno e no escudo (shield) para Arduino dedicado a reprodução de arquivos de som (Arduino MP3 shield player). A medida da temper...

Examination of accessibility for disabled people at metro stations

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Evren Burak Enginöz

2016-07-01

enforcements, as well as insufficient user’s knowledge cause our cities inaccessible. Therefore, we have to increase the awareness of our community on accessible city life and transportation systems rather than make laws and hope for recovery. In this context, a case study is intended to examine the approaches on barrier-free design and level of accessibility at metro stations in Turkey. With the scope of this case study, current informative, stimulating and guiding regulations, vertical and horizontal implementations on circulation areas at metro stations are examined by an accessible design control list Accessible design control list consists of 28 questions that have been selected from Turkish Ministry of Family and Social Policies-People with Disabilities and Elderly General Service Accessibility check Lists and Turkish World Handicapped Foundation- Outdoors and Indoors Accessibility Check Lists. With the help of question we can examine the passengers’ expectations on the quality of informative, stimulating and guiding signboards at entrance, circulations and surroundings of metro stations; except the legislations related to the product sizes and constraints that designers or professionals have to obey The questions are answered by disabled passengers who use Kadıkoy Ayrılık Cesme main transmission metro station. Disabled passengers are divided into two subject groups. First subject group consist of 5 visually impaired and partially impaired people. The second subject group consist of 7 wheelchair users. Experimentally, asked all the subject groups to make a journey beginning from the entrance of metro station to the train platforms without getting any help. After they completed their journey, they were requested to answer the questions of control list and describe the positive and negative situations from their experiences. According to the result of examining the approaches on barrier-free design and the level of accessibility at Ayrılıkcesme main transmission

Gardening and age-related weight gain: Results from a cross-sectional survey of Denver residents.

Science.gov (United States)

Litt, Jill S; Lambert, Jeffrey Richard; Glueck, Deborah H

2017-12-01

This study examined whether gardening modifies the association between age and body mass index (BMI). We used data from the Neighborhood Environments and Health Survey, which was conducted in Denver (N = 469) between 2006 and 2007. We fit two general linear mixed models. The base model had BMI in kg/m 2 as the outcome, and age, an indicator variable for non-gardening status and the age-by-non-gardening status interaction as predictors. The adjusted model included as covariates the potential confounders of education, ethnicity and self-reported health. We assessed self-selection bias and confounding. BMI was 27.18 kg/m 2 for non-gardeners, 25.62 kg/m 2 for home gardeners, and 24.17 kg/m 2 for community gardeners. In the base model, a statistically significant association was observed between age and BMI for non-gardeners but not for the combined community and home gardening group (F = 9.27, ndf = 1, ddf = 441, p = 0.0025). In the adjusted model, the association between age and BMI in non-gardeners was not statistically significant (F = 1.72, ndf = 1, ddf = 431, p = 0.1908). Gardeners differed on social and demographic factors when compared to non-gardeners. The results from the base model are consistent with the hypothesis that gardening might offset age-related weight gain. However, the cross-sectional design does not permit differentiation of true causal effects from the possible effects of bias and confounding. As a follow-up study, to remove bias and confounding, we are conducting a randomized clinical trial of community gardening in Denver.

An Analysis of the Demographic, Educational, and Employment Characteristics of Participants in the Continuing Education Program of the Medical Library Association, Denver, Colorado, June 1968 *

Science.gov (United States)

Rees, Alan M.; Rothenberg, Lesliebeth

1970-01-01

A survey was performed to elicit details about attendees of the continuing education program given in Denver at the 1968 MLA Annual Meeting. Factors considered included sex, age, geographic distribution, professional mobility, educational background, current jobs, and interest in further continuing education. PMID:5439905

URBANISASI, MODERNISASI DAN PERUBAHAN SOSIAL PADA KOMUNITAS LOKAL PERKOTAAN: KASUS KOTA BARU METRO TANJUNG BUNGA, MAKASSAR

OpenAIRE

Batara Surya

2016-01-01

This study aims to analyze the spatial physical changes in working as a determinant of social formation changes, processes of social interaction and social adaptation between migrants and local communities in new social formations and consequences of changes in social structure, social processes and cultural patterns of local communities in the Metro Tanjung Bunga area interest. Spatial physical changes take very quickly encourage the acceleration of development and modernization in the Metro...

Coeficiente de repetibilidade e parâmetros genéticos em capim-elefante

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Marcelo Cavalcante

2012-04-01

Full Text Available O objetivo deste trabalho foi determinar os coeficientes de repetibilidade de caracteres morfofisiológicos em genótipos de capim-elefante (Pennisetum spp., a partir de dados obtidos durante seis ciclos de avaliação. Foram estimados: número mínimo de medições e parâmetros genéticos. Utilizou-se o delineamento experimental de blocos ao acaso, em arranjo de parcelas subdivididas, com quatro níveis de N (controle, 30, 60 e 90 kg ha‑1 por corte e 16 genótipos de Pennisetum (11 híbridos interespecíficos e cinco cultivares. Os ciclos consistiram de avaliações em 2010 (21/4, 19/7 e 28/9 e 2011 (6/1, 7/4 e 3/8. Os coeficientes de repetibilidade foram de média‑alta magnitude para todas as variáveis, o que indica que houve regularidade entre as medidas repetidas. Para as variáveis massa de forragem, altura da planta, comprimento e largura da folha, diâmetro do colmo, clorose e índice de área foliar, três ciclos de avaliação são suficientes para obter R² de 90%, pela análise de componentes principais. Para o comprimento do entrenó, o mínimo de sete avaliações é necessário para predizer o valor real dos genótipos. Os parâmetros genéticos das variáveis massa de forragem, comprimento e largura da folha, diâmetro do colmo e clorose foliar são de alta magnitude, o que favorece a seleção de genótipos superiores de Pennisetum.

EL USO DE Enterococcus faecium MEJORA PARÁMETROS PRODUCTIVOS EN POLLOS DE ENGORDE

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L. A. Chavez

2016-01-01

Full Text Available El consumo de probióticos se ha asociado con mejoras en algunos parámetros productivos como la conversión alimenticia y la ganancia de peso vivo, lo que se ve reflejado en el desarrollo y salud de las aves. El objetivo de este trabajo fue evaluar la influencia de la inclusión de cepas probióticas en la alimentación de pollos de engorde sobre parámetros productivos de importancia económica. Se utilizaron 180 pollos machos (Cobb de un día de edad, alimentados con cinco dietas: dieta comercial con y sin la adición de antibióticos, y a esta última se le adicionó una de tres diferentes cepas probióticas (Lactobacillus casei, Lactobacillus acidophilus o Enterococcus faecium en el agua de bebida (108 UFC/ml durante 42 días. Se evaluaron parámetros zootécnicos: consumo de alimento, peso corporal, conversón alimenticia (CA y ganancia de peso (GDP; e indicadores productivos: supervivencia, factor de eficiencia americana (FEA, índice productivo (IP, eficiencia europea (EE y eficiencia alimenticia (EA. El diseño estadístico utilizado fue de bloques al azar. La inclusión de probióticos, específicamente E. faecium, mejoró parámetros productivos (P < 0,05 como peso (2.730 g, conversión (1,55, GDP (53,59 g/día, FEA (172, IP (393, EE (400 y EA (63,11%. Por todo lo anterior, la utilización de probióticos, especialmente E. faecium, puede ser considerada como factor promotor de crecimiento durante todo el ciclo de producción del ave debido a que demostró tener efectos positivos, tanto en el desempeño productivo, como en el rendimiento económico del lote.

CALIBRAÇÃO DE ERROS SISTEMÁTICOS EM ACELERÔMETROS MEMS

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Stefanie Von Randow de Souza

Full Text Available Os sensores inerciais MEMS de baixo custo apresentam grandes vantagens para diversas aplicações em navegação, porém estes dispositivos são caracterizados por diversos tipos de erros. Através de procedimentos específicos como a calibração é possível obter resultados com melhor acurácia. Neste artigo utilizou-se o Método de Calibração Multi-Posições Modificado, que permite determinar erros sistemáticos, tais como deriva, erro de fator de escala e de não-ortogonalidade. O método, o procedimento e as equações desta calibração são brevemente descritos. Primeiramente foi realizada a calibração com diferentes acelerômetros. O desempenho dos parâmetros de calibração foi verificado por meio de um teste em campo, comparando as trajetórias calculadas pelas acelerações antes e após as correções. Após a correção das acelerações com os parâmetros de calibração, foram verificadas algumas discrepâncias nas trajetórias. Ainda assim houve uma melhora significativa na solução final. A vantagem deste método consiste no fato de que este não requer o uso de equipamentos especiais ou de um preciso alinhamento dos sensores, podendo ser aplicado em campo antes da utilização dos sensores.

Radiofrequency electromagnetic radiation exposure inside the metro tube infrastructure in Warszawa.

Science.gov (United States)

Gryz, Krzysztof; Karpowicz, Jolanta

2015-09-01

Antennas from various wireless communications systems [e.g. mobile phones base transceiver stations (BTS) and handsets used by passengers, public Internet access, staff radiophone transmitters used between engine-drivers and traffic operators] emitting radiofrequency electromagnetic radiation (RF-EMR) are used inside underground metro public transportation. Frequency-selective exposimetric investigations of RF-EMR exposure inside the metro infrastructure in Warsaw (inside metro cars passing between stations and on platforms) were performed. The statistical parameters of exposure to the E-field were analyzed for each frequency range and for a total value (representing the wide-band result of measurements of complex exposure). The recorded exposimetric profiles showed the dominant RF-EMR sources: handsets and BTS of mobile communication systems (GSM 900 and UMTS 2100) and local wireless Internet access (WiFi 2G). Investigations showed that the GSM 900 system is the dominant source of exposure - BTS (incessantly active) on platforms, and handsets - used by passengers present nearby during the tube drive. The recorded E-field varies between sources (for BTS were: medians - 0.22 V/m and 75th percentile - 0.37 V/m; and for handsets: medians - 0.28 V/m and 75th percentile - 0.47 V/m). Maximum levels (peaks) of exposure recorded from mobile handsets exceeded 10 V/m (upper limit of used exposimeters). Broadband measurements of E-field, including the dominant signal emitted by staff radiophones (151 MHz), showed that the level of this exposure of engine-drivers does not exceed 2.5 V/m.

77 FR 16850 - Notice of Reclassification of One Investigative Field Office to Regional Office: Denver, CO

Science.gov (United States)

2012-03-22

...This notice advises the public that the HUD/OIG Office of Investigation plans to reclassify its Denver, Colorado field office as a regional office. The planned reorganization is intended to: 1. Improve the alignment of limited investigative resources, to promote more efficient responses to HUD or Congressional requests involving critical program issues; 2. Redeploy resources to prevent and detect fraud in new program delivery of CPD, FHA and other HUD programs; and 3. Improve management control and effectiveness, and reduce travel costs of management by reducing region size. 4. Return to the traditional Regional alignment of HUD OIG Regional offices and HUD Regional offices.

Users’ Awareness of Electronic Books is Limited. A review of: Levine‐Clark, Michael. “Electronic Book Usage: A Survey at the University of Denver.” portal: Libraries and the Academy 6.3 (Jul. 2006): 285‐99.

OpenAIRE

Gale G. Hannigan

2007-01-01

Objective – To determine if university library users are aware of electronic books,and how and why electronic books are used.Design – Survey.Setting – University of Denver.Subjects – Two thousand sixty‐seven graduate and undergraduate students, faculty, and staff.Methods – In Spring 2005, the University of Denver faculty, and graduate and undergraduate students were invited to participate in a survey about awareness and use of electronic books. A link to the survey was also posted on the libr...

Comparação entre a utilização de saliva e sangue para determinação do lactato mínimo em cicloergômetro e ergômetro de braço em mesa-tenistas Comparacion entre la utilizacion de saliva y sangre para la determinacion del lactato mínimo en cicloergómetro y ergómetro de brazo en tenistas de mesa Comparison between the use of saliva and blood for the minimum lactate determination in arm ergometer and cycle ergometer in table tennis players

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Alessandro Moura Zagatto

2004-12-01

Full Text Available O objetivo do estudo foi verificar a possibilidade de determinar o teste de lactato mínimo (TLM com concentrações de sódio (Na+, potássio (K+ e lactato (LAC na saliva em ergômetro de braço e cicloergômetro. Foram participantes deste estudo oito mesa-tenistas de nível internacional. Como estímulo anaeróbio no TLM em ambos os ergômetros foram utilizados testes máximos de 30 segundos. No ergômetro de braço isocinético (Cybex Ube 2432 foi aplicada a força máxima com rotação fixa em 102rpm e no cicloergômetro, aplicada a carga de 7,5% do peso corporal (Kp. Após o estímulo anaeróbio no ergômetro de braço, foi iniciado um teste incremental com rotações na manivela constante a 60rpm, iniciado a 49 watts com aumento de 16 watts a cada estágio de três minutos de exercício. A intensidade correspondente ao TLM foi determinado com amostras de sangue e saliva (LACmin braço; Na+min braço-saliva e K+min braço-saliva, respectivamente. Para o cicloergômetro, a carga inicial foi de 85 watts e aumento de 17 watts com rotação do pedal constante a 70rpm. Cada estágio de exercício também teve a duração de três minutos. O LACmin foi determinado utilizando amostras de sangue e saliva (LACmin ciclo; Na+min ciclo-saliva, K+min ciclo-saliva e LACmin ciclo-saliva, respectivamente. Em ambos os ergômetros, as intensidades obtidas no TLM foram correspondentes à derivada zero do ajuste polinomial entre metabólito versus intensidade. Foram utilizados, como procedimentos estatísticos, o teste ANOVA One Way, teste t de Student pareado e teste de correlação de Pearson com níveis de significância de 5%. Os LACmin determinados com amostras de sangue e de saliva, tanto para o ergômetro de braço (LACmin braço 91,71 ± 12,43; Na+min braço-saliva 71,99 ± 23,42; K+min braço-saliva 79,67 ± 17,72, quanto para cicloergômetro (LACmin ciclo 157,68 ± 13,48; LACmin ciclo-saliva 135,49 ± 33,2; Na+min ciclo-saliva 121,81 ± 51,31; K

Early Start Denver Model. Un modello Evidence Based per l’intervento educativo precoce nei Disturbi dello Spettro Autistico

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Saverio Fontani

2016-07-01

Full Text Available The Autism Spectrum Disorders represents one of the most complex developmental disabilities for the massive deficit of communication competences. The social disability related to disorders is the main objective of the intervention of the Early Start Denver Model – ESDM (Rogers & Dawson, 2010, which can be considered as one of the most advanced models for early educational intervention according the perspective of Evidence Based Education. In this paper the theoretical foundations of the model are presented and its implications for a modern inclusive education are discussed..

Identificación de parámetros en geotecnia aplicación a la excavación de túneles

OpenAIRE

Ledesma Villalba, Alberto

1987-01-01

En esta tesis se desarrolla una metodología general para la identificación de parámetros en problemas geotécnicos. Dado un problema especifico se supone fijado un modelo (determinista) y se consideran conocidos algunos valores de las variables de estado que caracterizan el sistema (observaciones). La identificación de parámetros o resolución del problema inverso consiste en estimar los parámetros del modelo que mejor ajustan predicciones y medidas. Como criterio de identificación se ha escogi...

High-Penetration Photovoltaics Standards and Codes Workshop, Denver, Colorado, May 20, 2010: Workshop Proceedings

Energy Technology Data Exchange (ETDEWEB)

Coddington, M.; Kroposki, B.; Basso, T.; Lynn, K.; Herig, C.; Bower, W.

2010-09-01

Effectively interconnecting high-level penetration of photovoltaic (PV) systems requires careful technical attention to ensuring compatibility with electric power systems. Standards, codes, and implementation have been cited as major impediments to widespread use of PV within electric power systems. On May 20, 2010, in Denver, Colorado, the National Renewable Energy Laboratory, in conjunction with the U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE), held a workshop to examine the key technical issues and barriers associated with high PV penetration levels with an emphasis on codes and standards. This workshop included building upon results of the High Penetration of Photovoltaic (PV) Systems into the Distribution Grid workshop held in Ontario California on February 24-25, 2009, and upon the stimulating presentations of the diverse stakeholder presentations.

Photochemistry in the Atmospheres of Denver and Mexico City

Science.gov (United States)

Cantrell, C. A.

2016-12-01

The composition of atmospheres in and downwind of urban centers has been the subject of study for decades. While early campaigns involved measurements exclusively from the ground, more recent studies have included airborne-based observations. Improved understanding has hinged critically on the development of instrumentation for better qualitifcation of pollutants, and measurement of previously unobserved species in the gas and particulate phases. Comprehensive, well-planned studies have, over time, led to more detailed understanding of chemical transformations and thus improved model representations and directions for further research. This presentation focuses on findings from two case studies of urban atmospheres, namely the MILAGRO study in the Mexico City metropolitan area and the FRAPPE study in the Denver metropolitan region. Both studies made use of extensive ground-based networks and multiple aircraft platforms. The data collected during these studies have been combined with numerical models to derive assessments of the evolution of atmospheric composition due to photochemistry, mixing, and surface processes. Here, analysis of MILAGRO data focuses on the evolution of outflow downwind of the urban region. In FRAPPE, the focus is the possible role of oil and gas exploration on urban air quality. These findings are used to assess the accuracy of current numerical models to reproduce observations, and to point toward areas possibly needing further study.

EFFORTS TO IMPROVE LEARNING MOTIVATION OF STUDENT WITH CONTENT MASTERY IN SMP NEGERI 1 METRO

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Hadi Pranoto

2013-09-01

Full Text Available Abstract: The study design using action research applied in guidance and counseling services (follow-services research. Subjects in this study, researchers took VII.4 grade students of SMP Negeri 1 Metro Odd Semester Lesson Tabun 2012/2013. Of the 24 students, there are 10 students who experience a lack of motivation to learn to 41.66%. The method used in collecting data by observation and field notes. Analysis of the data used is the analysis of qualitative and quantitative data. Validity test is done through assessment experts /specialists ie counseling teachers SMP Negeri 1 Metro, other friends peer discussions that instrument with other friends FKIP students with courses in counseling. The results of this study, it can be concluded that the results obtained through the implementation of the procurement of content services in increasing the motivation of learners class VII.4 SMP Negeri 1 Metro Tabun Odd Semester Lesson 20 12/20 13 is visible from the change in behavior and ability of learners in learners become more willing to meet the needs of achievement, students can understand or have confidence in learning, learners have the ability to overcome failure in learning, and learners have a good competitiveness in the service learning. Through mastery of content supplied by BK teacher can increase the motivation of learners class VII.4 SMP Negeri 1 Metro Odd Semester Academic Year 201212013. There is increased the motivation of learners in the first cycle seen from the average percentage that is equal to 27.5% and in the second cycle of 75 %, resulting in an increase of 47.5%. Response and activity VIl.4 grade students of SMP Negeri 1 Metro Odd Semester Lesson Tabun 2012/2013 on the service in the content mastery enhance learning motivation is very positive, it is shown by the participation of learners in the service following the mastery of content, learner motivation and enthusiasm in participating services as well as content mastery

Estacas de diferentes diâmetros na propagação de Lippia alba (Mill.) N.E.Br. - Verbenaceae

OpenAIRE

Marchese,J.A.; Pissaia,E.; Bocchese,V.C.C.; Cambruzzi,E.; Colussi,G.; Hart,V.; Magiero,E.C.

2010-01-01

Este trabalho teve por objetivo avaliar o efeito de diferentes diâmetros de estacas na propagação de Lippia alba. Foram testadas estacas de 25 cm de comprimento, com diâmetros de 0,3-0,5 cm; 0,6-0,9 cm e 1-1,2 cm. Aos 30 e 60 dias após o plantio das estacas foram determinadas as características biométricas, como porcentagem de enraizamento, número de brotos, comprimento dos brotos, massas secas de brotos, estacas, raízes e total. Todos os diâmetros de estacas apresentaram altas taxas de enrai...

Metro Commuter Exposures to Particulate Air Pollution and PM2.5-Associated Elements in Three Canadian Cities: The Urban Transportation Exposure Study.

Science.gov (United States)

Van Ryswyk, Keith; Anastasopolos, Angelos T; Evans, Greg; Sun, Liu; Sabaliauskas, Kelly; Kulka, Ryan; Wallace, Lance; Weichenthal, Scott

2017-05-16

System-representative commuter air pollution exposure data were collected for the metro systems of Toronto, Montreal, and Vancouver, Canada. Pollutants measured included PM 2.5 (PM = particulate matter), PM 10 , ultrafine particles, black carbon, and the elemental composition of PM 2.5 . Sampling over three weeks was conducted in summer and winter for each city and covered each system on a daily basis. Mixed-effect linear regression models were used to identify system features related to particulate exposures. Ambient levels of PM 2.5 and its elemental components were compared to those of the metro in each city. A microenvironmental exposure model was used to estimate the contribution of a 70 min metro commute to daily mean exposure to PM 2.5 elemental and mass concentrations. Time spent in the metro was estimated to contribute the majority of daily exposure to several metallic elements of PM 2.5 and 21.2%, 11.3% and 11.5% of daily PM 2.5 exposure in Toronto, Montreal, and Vancouver, respectively. Findings suggest that particle air pollutant levels in Canadian metros are substantially impacted by the systems themselves, are highly enriched in steel-based elements, and can contribute a large portion of PM 2.5 and its elemental components to a metro commuter's daily exposure.

Disdrómetro óptico de bajo costo para la determinación del tamaño y velocidad de las gotas de lluvia

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Nelson Falcón

2013-09-01

Full Text Available El tamaño y la velocidad de caída de las gotas de lluvia es un factor importante para estudiar la erosión de los suelos. Los pluviómetros no permiten medir directamente estas magnitudes. Para superar estas limitaciones se emplean los disdrómetros que sirven además para calibrar los radares meteorológicos. Se diseña y construye un disdrómetro óptico de bajo costo, que puede emplearse como medidor universal de precipitaciones. El disdrómetro se elabora con dos LED IR333C como optocopladores infrarrojos de 940 nanómetros, junto a un amplificador operacional TL82 y un pulsador LM555. Se obtuvieron resultados preliminares para varios eventos de precipitación, logrando medir un tamaño medio de 1,6 ± 0,25mm de diámetro, alcanzando una velocidad media de 5,4 ± 1,8 m/s. El disdrómetro elaborado mostró su efectividad para cálculos pluviométricos y cinemáticos de los eventos de precipitación en la estaciones de Valencia (Carabobo, Venezuela durante las primeras lluvias del periodo lluvioso de julio de 2012.

Framing Analysis In Media Television News MetroTVOne Related Arrest by the Chairman MK Akil Mocktar Commission Case of Corruption

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Aryadi Aryadi

2014-07-01

Full Text Available Aryadi, G331.10.0018.Framing  Analysis In Media Television News Metro TVOne Related Arrest by   the   Chairman   MK  Akil   Mocktar   Commission   Case   of  Corruption   Skripsi   :  Program   S1   of Communication University of Semarang. This research aims to understand how the framing of television-related  news in the arrest of the chairman of the Constitutional Court AkilMocktar by the Commission on cases of corruption. Impressions is catching  news MK chairman  AkilMocktar  on Metro TV and TVOne. Theoretical  foundation,  framing analysis model of Murray Edelman, the theory is used to understand the reality of diverse and irregular into a reality that has meaning, using the categorization, the use of a particular perspective with certain words is also a word that signifies how the facts or reality understood. Qualitative research methods and strategies for framing the analysis, the study was conducted by observing the video sempel news on Metro TV and TVOne selected. Based on the research results, the general conclusion of each media that Metro TV and TVOne has a different way of constructing a bribery case Mocktar chairman MK Akil is in its message. Metro TV tend to highlight cases of bribery Court of facts, Metro TV does not describe the alleged emerging society. While TVOne looks construct audiences with growing allegations in the news

Rational Formations of a Metro Train Improve Its Efficiencies of Both Traction Energy Utilization and Passenger Transport

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Xuesong Feng

2013-01-01

Full Text Available Based on simulations of passenger transports of two representative types of metro trains in China, this study analyzes efficiencies of energy consumption and passenger transport of a metro train in the effect of its target speed, formation scale (FS (i.e., length and mass of the formation, relative traction capacity (RTC (i.e., ratio of the motoring cars to all its cars, and so forth. It is found that increasing energy cost efficiency of a metro train with decreasing its target speed is evidently accelerated with reducing its RTC below 0.50 at the expense of obviously lowering its passenger transport efficiency. Moreover, if the passenger capacity of the train is sufficiently utilized, increasing its FS for the same RTC is easy to have its passenger transport efficiency improved significantly even for a meanwhile much decreased target speed with consuming energy less intensively. Therefore, metro trains in peak hours may take comparatively big FSs, relatively high target speeds, and RTCs over 0.50 to meet usually urgent and large-scale travel demands in such time. In contrast, trains in nonpeak hours ought to have small FSs, relatively low target speeds, and RTCs smaller than 0.50 for mainly avoiding energy waste.

Influência da temperatura e do teor de gordura nos parâmetros reológicos do leite condensado e creme de leite

OpenAIRE

Flauzino, Rodrigo Dias [UNESP

2007-01-01

Neste trabalho estudou-se a influência da temperatura (275,4 a 359,8 K) e teor de gordura (10,2% a 30,6%) nos parâmetros reológicos do creme de leite, como também a influência da temperatura (278 a 343 K) nos parâmetros reológicos do leite condensado. A caracterização reológica foi realizada com o auxílio de um reômetro rotacional do tipo cone e placa, localizado no DEA/FZEA/USP, e de um reômetro rotacional do tipo cone e placa, localizado no DETA/UNESP. Os dados experimentais foram ajustados...

AVALIAÇÃO DO INCREMENTO EM DIÂMETRO DO MOGNO (Swietenia macrophylla EM UM SAF - RURÓPOLIS-PARÁ

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Itabira Jaguaraçú Ricardo Sanches

2016-11-01

Full Text Available Esse trabalho tem como objetivo avaliar o incremento em diâmetro da espécie Swietenia machophylla em um sistema Agroflorestal. Em uma área de 1 ha foram alocadas 5 parcelas de 12 x 24 m. As medições foram realizadas em  três ocasiões, sendo: Janeiro de 2014, Janeiro de 2015 e Julho de 2015. Para construção dos histogramas de frequência foram testados os métodos de Sturges e “empírico”. Em um segundo plano histogramas de crescimento foram elaborados tendo em vista a visualização dos diâmetros de cada indivíduo para análise do incremento em diâmetro. O melhor resultado para construção dos histogramas foi o método “empírico”, pois apresentou menor erro. O incremento no DAP médio foi de 0,58 cm entre as três medições, no primeiro período o incremento em diâmetro foi de 11,32, no segundo 11,76 cm e no último 11,90 cm.

A feasibility study for decision-making support of a radioactive contamination model in an urban environment (METRO-K)

International Nuclear Information System (INIS)

Hwang, Won Tae; Han, Moon Hee; Jeong, Hyo Joon; Kim, Eun Han; Lee, Chang Woo

2008-01-01

A Korean urban contamination model METRO-K (Model for Estimates the Transient behavior of RadiOactive materials in the Korean urban environment), which is capable of calculating the exposure doses resulting from radioactive contamination in an urban environment, is taking part in a model testing program EMRAS (Environmental Modelling for RAdiation Safety) organized by the IAEA (International Atomic Energy Agency). For radioactive contamination scenarios of Pripyat districts and a hypothetical RDD (Radiological Dispersal Device), the predicted results using METRO-K were submitted to the EMRAS's urban contamination working group. In this paper, the predicted results for the contamination scenarios of a pripyat district were shown in case of both without remediation measures and with ones. Comparing with the predicted results of the models that have taken part in EMRAS program, a feasibility for decision-making support of METRO-K was investigated. As a predicted result of METRO-K, to take immediately remediation measures following a radioactive contamination, if possible, might be one of the best ways to reduce exposure dose. It was found that the discrepancies of predicted results among the models are resulted from 1) modeling approaches and applied parameter values, 2) exposure pathways which are considered in models, 3) assumptions of assessor such as contamination surfaces which might affect to an exposure receptor and their sizes, 4) parameter values which are related with remediation measures applied through literature survey. It was identified that a Korean urban contamination model METRO-K is a useful tool for decision-making support through the participation of EMRAS program

Study on construction technology of metro tunnel under a glass curtain wall

Science.gov (United States)

Zhang, Jian; Yu, Deqiang

2018-03-01

To ensure the safety of the glass curtain wall building above loess tunnel and get an optimal scheme, an elastic-plastic FEM model is established to simulate three reinforcement schemes based on a tunnel section in Xi’an Metro Line 3. The results show that the settlement value of the optimal scheme is reduced by 69.89% compared with the drainage measures, and the uneven settlement value is reduced by 57.5%. The construction points, technical processes and technical indexes of the optimal scheme are introduced. According to the actual project, the cumulative settlement of the building under construction is 16mm, which meets the control standards. According to the actual project, the cumulative settlement of the glass curtain wall building is 16mm, which meets the control standards. The reinforcement scheme can provide some reference for the design and construction of the metro in loess area.

Response of hatchling Komodo Dragons (Varanus komodoensis) at Denver Zoo to visual and chemical cues arising from prey.

Science.gov (United States)

Chiszar, David; Krauss, Susan; Shipley, Bryon; Trout, Tim; Smith, Hobart M

2009-01-01

Five hatchling Komodo Dragons (Varanus komodoensis) at Denver Zoo were observed in two experiments that studied the effects of visual and chemical cues arising from prey. Rate of tongue flicking was recorded in Experiment 1, and amount of time the lizards spent interacting with stimuli was recorded in Experiment 2. Our hypothesis was that young V. komodoensis would be more dependent upon vision than chemoreception, especially when dealing with live, moving, prey. Although visual cues, including prey motion, had a significant effect, chemical cues had a far stronger effect. Implications of this falsification of our initial hypothesis are discussed.

THE IMPROVEMENT OF STAFF PERFORMANCE THROUGH VARIATION OF LEADERSHIP APPROACH AT STATE VOCATIONAL HIGH SCHOOL (SMKN 2 METRO ACADEMIC YEAR 2015/2016

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Sutarman - -

2015-10-01

Full Text Available Abstract : SMKN 2 Metro, as one of vocational high schools potentially becomes a reference school, need to deal that possibility with high performace both teachers and staff. Reference school requires all staffs to manage and organize the school establishment in accordance with quality management procedure and do their best to improve their competency and qualification. The improvement of their competency and qualification is a supporting factor of the service provided by the school to all stake holders at SMKN 2 Metro. The aim of the research is to improve the performance of the staff at SMKN 2 Metro.It was school action research applied. This research was conducted to improve working situation and process to overcome problems of the school. SMKN 2 Metro is located at Street Yos Sudars, West Metro of Metro Municipal City. The subjcts of the research were staff consist of 13 civil servants (PNS and 20 volunteer (PTT. It was done for three months from February to April 2015.The researcher was able to conclude that staff performance at SMKN 2 Metro improved when variation of leadership approach applied. This conclusion was supported by some findings. There was linear improvement of staff performance both PNS and PTT. The improvement of PTT performance was better than PNS in the beggining of the treatment, bu then they reached the same quality of improvement. Coersive power needed to be apllied more intensive in the beggining although applied with very careful manner. Flexible leadership approach must equip authoritative approach. Reward, even in smallest amount of recognition, must be applied more intensive.   Key Words: Approach, Performance, Staff

Anaplasmose bovina: parâmetros clínicos e de patologia clínica em bezerros infectados experimentalmente.: parâmetros clínicos e de patologia clínica em bezerros infectados experimentalmente.

OpenAIRE

Leonardo Costa Tavares Coelho

2007-01-01

Avaliou-se o comportamento dos parâmetros de patologia clínica em cinco bezerros HPB, com idade entre 90 e 120 dias, inoculados com Anaplasma marginale. O período médio de incubação foi de 13 dias, a duração do período patente, quando foram realizadas as análises, foi de 14 dias e o período convalescente durou 10 dias. Foram avaliadas as alterações no equilíbrio ácido-básico, perfil eletrolítico, parâmetros bioquímicos e hematológicos. Os animais apresentaram anemia, inicialmente normocítica ...

Astronomy in Denver: Probing Interstellar Circular Polarization with Polvis, a Full Stokes Single Shot Polarimeter

Science.gov (United States)

Wolfe, Tristan; Stencel, Robert E.

2018-06-01

Measurements of optical circular polarization (Stokes V) introduced by dust grains in the ISM are important for two main reasons. First of all, the polarization itself contains information about the metallic versus dielectric composition of the dust grains themselves (H. C. van de Hulst 1957, textbook). Additionally, circular polarization can help constrain the interstellar component of the polarization of any source that may have intrinsic polarization, which needs to be calibrated for astrophysical study. Though interstellar circular polarization has been observed (P. G. Martin 1972, MNRAS 159), most broadband measurements of ISM polarization include linear polarization only (Stokes Q and U), due to the relatively low circular polarization signal and the added instrumentation complexity of including V-measurement capability. Prior circular polarization measurements have also received very little follow-up in the past several decades, even as polarimeters have become more accurate due to advances in technology. The University of Denver is pursuing these studies with POLVIS, a prototype polarimeter that utilizes a stress-engineered optic ("SEO", A. K. Spilman and T. G. Brown 2007, Applied Optics IP 46) to produce polarization-dependent PSFs (A. M. Beckley and T. G. Brown 2010, Proc SPIE 7570). These PSFs are analyzed to provide simultaneous Stokes I, Q, U, and V measurements, in a single beam and single image, along the line-of-sight to point source-like objects. Polvis is the first polarimeter to apply these optics and measurement techniques for astronomical observations. We present the first results of this instrument in B, V, and R wavebands, providing a fresh look at full Stokes interstellar polarization. Importantly, this set of efforts will constrain the ISM contribution to the polarization with respect to intrinsic stellar components. The authors are grateful to the estate of William Herschel Womble for the support of astronomy at the University of Denver

Capitalización anticipada del metro de Santiago en el precio de las viviendas

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Claudio Agostini

2008-01-01

Full Text Available En general, las viviendas que por su ubicación muestran mejores accesos tienen un valor de mercado superior respecto a viviendas de características similares con peores accesos. Esta diferencia se debe a los menores costos de transporte hacia los principales mercados laborales y comerciales de una ciudad. Por esta razón, las inversiones en infraestructura pública de transporte, como por ejemplo la construcción de una nueva línea de metro, se capitalizan total o parcialmente en el precio de los terrenos y de las viviendas. Este trabajo estudia empíricamente el grado de capitalización en el precio de las viviendas que tuvo la construcción de la nueva línea 4 del metro en la ciudad de Santiago. En particular, dado que la nueva línea entra en operación en diciembre de 2005, se estima el grado de capitalización anticipada en el precio de las viviendas ocurrido en el momento del anuncio de la construcción de la nueva línea 4 y en el momento del anuncio de la ingeniería básica que determinó la ubicación de las estaciones. Con una base de datos única, que contiene todas las transacciones de compra y venta de viviendas realizadas en el Gran Santiago entre Diciembre de 2000 y Marzo de 2004. Los resultados muestran que el valor promedio de los departamentos aumentó entre 3.3% y 4.4% en consecuencia del anuncio de construcción y entre 4.5% y 5.7% después del conocimiento de la ubicación de las estaciones. Este aumento no se distribuye en forma uniforme, sino que depende de la distancia a la estación de metro más cercana. Un efecto indirecto de esta capitalización es que la recaudación del impuesto a las propiedades aumentaría si se reavalúan las propiedades de acuerdo a su aumento de valor. Este efecto no es despreciable en magnitud y podría representar al menos entre 14 y 20% de la inversión de la nueva línea de metro, lo cual abre una discusión interesante respecto a la forma de financiar la expansión de la red de metro.

Parâmetros quantitativos da anatomia da madeira de eucalípto que cresceu em diferentes locais

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José Geraldo Lima de Oliveira

2012-06-01

Full Text Available Sabe-se da existência de influência do local de crescimento nas propriedades da madeira e que estas são influenciadas principalmente pela sua estrutura anatômica. Este trabalho teve como objetivo avaliar parâmetros quantitativos da estrutura anatômica da madeira de eucalipto de um clone de híbrido natural de Eucalyptus grandis W. Hill ex-Maiden, ocorrentes na localidade de Rio Claro-SP, com 64 meses de idade. As 138 árvores foram cultivadas nos os municípios de Aracruz, Domingos Martins, Alto Rio Novo e São Mateus - ES e Mutum e Aimorés - MG. Os parâmetros anatômicos mensurados foram o diâmetro e a frequência vascular, o comprimento, a largura, o diâmetro do lume e a espessura da parede das fibras e ainda a altura, largura e frequência de raios. De acordo com os resultados obtidos pode-se concluir que relativo aos vasos houve diferenças significativas entre as regiões. Quanto aos raios, também foram verificadas diferenças significativas relativas à altura, largura e frequência diversas regiões. As madeiras produzidas na região de Aracruz possuem fibras de comprimento e espessura de paredes muito inferiores às produzidas nas demais regiões estudadas.

A constrained multinomial Probit route choice model in the metro network: Formulation, estimation and application

Science.gov (United States)

Zhang, Yongsheng; Wei, Heng; Zheng, Kangning

2017-01-01

Considering that metro network expansion brings us with more alternative routes, it is attractive to integrate the impacts of routes set and the interdependency among alternative routes on route choice probability into route choice modeling. Therefore, the formulation, estimation and application of a constrained multinomial probit (CMNP) route choice model in the metro network are carried out in this paper. The utility function is formulated as three components: the compensatory component is a function of influencing factors; the non-compensatory component measures the impacts of routes set on utility; following a multivariate normal distribution, the covariance of error component is structured into three parts, representing the correlation among routes, the transfer variance of route, and the unobserved variance respectively. Considering multidimensional integrals of the multivariate normal probability density function, the CMNP model is rewritten as Hierarchical Bayes formula and M-H sampling algorithm based Monte Carlo Markov Chain approach is constructed to estimate all parameters. Based on Guangzhou Metro data, reliable estimation results are gained. Furthermore, the proposed CMNP model also shows a good forecasting performance for the route choice probabilities calculation and a good application performance for transfer flow volume prediction. PMID:28591188

Estimación del diámetro, altura y volumen a partir del tocón para especies forestales de Durango

OpenAIRE

Quiñónez Barraza, Gerónimo; Cruz Cobos, Francisco; Vargas Larreta, Benedicto; Hernández, Francisco Javier

2012-01-01

Cuando una masa forestal ha sido aprovechada mediante un programa de manejo y solo se tiene como evidencia las dimensiones de los tocones, es posible estimar a través de relaciones alométricas el diámetro y la altura, así como el volumen de los árboles en pie. En el presente trabajo se describe un experimento en el que se ajustaron 12 modelos matemáticos para predecir el diámetro normal, la altura total y el volumen del fuste, a partir del diámetro del tocón para Pinus arizonica , P. ayacahui...

A Longitudinal Analysis of Densities within the Pedestrian Sheds around Metro Stations. The Case of Tehran.

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Houshmand E. Masoumi

2016-10-01

Full Text Available Evaluation of spatial accessibility to public transportation has a weak background in many emerging countries, including Iran. Transit-Oriented Development is of great interest among Iranian planners and academics, but little is known about transit orientation provided by major public transport systems exemplified by the Tehran Metro. Statistical difference tests and polynomial regression done in this study show how residential densities within walking distances of metro stations established at different times after 1998 are significantly different. Both population and employment densities have decreased in more recent stations compared to those opened between 2005 and 2010. Moreover, one-way T-Tests comparing the population and densities of older lines with those of newer lines reveal that, in most cases, densities within walking distances of stations of older lines are higher. The paper concludes that lack of proper site selection and failing to locate new stations near job centers and highly populated areas threatens the transit-friendliness that emerged in the early years after establishing the first metro station in 1998.

Determining the Optimal Layout Design for Public Bicycle System within the Attractive Scope of a Metro Station

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Jingxu Chen

2015-01-01

Full Text Available Public bicycle acts as a seamless feeder mode in combination with the citywide public transit, as well as a competitor for the inner-city short trips. The primary objective of this study is to address the layout planning of public bicycle system within the attracted scope of a metro station. Based on the land use function, population, and bicycle mode share, bicycle rental stations are divided into three types, namely, the metro station, district station, and resident station, and later the quantity of bicycle facilities in each rental station is estimated. Then, the service stations are selected from these bicycle rental stations to provide the service of periodical bicycle redistribution. An improved immune algorithm is proposed to determine the number and locations of service stations and the optimal route options for the implement of redistributing strategy. Finally, a case study of Nanjing Tianyin Road metro station is conducted to illustrate the proposed model and clarify some of its implementation details.

Traffic and Technological Assumptions for the Metro in the City of Split

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Vinko Višnjić

2007-05-01

Full Text Available Rationalization of the traffic systems in major cities, whichincludes Split, is possible at present only by providing a more diverseand higher quality supply of public urban transport.In Split the situation in public urban transport shows that itdoes not meet its basic function. Only partial or transitional solutionsare offered. All this contributes to the delay in makingthe decision which is the only possible one in the city of Split regardingits size and the level of motorization.The solution of the public urban transport lies in the introductionof the metro system through phase construction. Eachphase represents in fact the construction of one line. Due to thecomplexity of the construction of the underground section (tunnelconstntction in the centre of the City the first phase is themost demanding one regarding construction works, with twometro lines intersecting (the need to build two-level stationsand therefore this section is the most complex and the most expensivepart in the network of the metro line system.

Case Study for the ARRA-funded Ground Source Heat Pump Demonstration at Denver Museum of Nature & Science

Energy Technology Data Exchange (ETDEWEB)

Im, Piljae [ORNL; Liu, Xiaobing [ORNL

2016-09-01

High initial costs and lack of public awareness of ground-source heat pump (GSHP) technology are the two major barriers preventing rapid deployment of this energy-saving technology in the United States. Under the American Recovery and Reinvestment Act (ARRA), 26 GSHP projects were competitively selected and carried out to demonstrate the benefits of GSHP systems and innovative technologies for cost reduction and/or performance improvement. This report highlights the findings of a case study of one such GSHP demonstration projects that uses a recycled water heat pump (RWHP) system installed at the Denver Museum of Nature & Science in Denver, Colorado. The RWHP system uses recycled water from the city’s water system as the heat sink and source for a modular water-to-water heat pump (WWHP). This case study was conducted based on the available measured performance data from December 2014 through August 2015, utility bills of the building in 2014 and 2015, construction drawings, maintenance records, personal communications, and construction costs. The annual energy consumption of the RWHP system was calculated based on the available measured data and other related information. It was compared with the performance of a baseline scenario— a conventional VAV system using a water-cooled chiller and a natural gas fired boiler, both of which have the minimum energy efficiencies allowed by ASHRAE 90.1-2010. The comparison was made to determine energy savings, operating cost savings, and CO2 emission reductions achieved by the RWHP system. A cost analysis was performed to evaluate the simple payback of the RWHP system. Summarized below are the results of the performance analysis, the learned lessons, and recommended improvement in the operation of the RWHP system.

Effects of Parent-Implemented Early Start Denver Model Intervention on Chinese Toddlers with Autism Spectrum Disorder: A Non-Randomized Controlled Trial

OpenAIRE

Zhou, B; Xu, Q; Li, H; Zhang, Y; Wang, Y; Rogers, SJ; Xu, X

2018-01-01

© 2017 International Society for Autism Research, Wiley Periodicals, Inc. To evaluate the effects of a 26-week, high-intensity, parent-implemented Early Start Denver Model (P-ESDM) intervention on developmental outcomes, severity of autism spectrum disorder (ASD), and parental stress of ASD toddlers in China. Subjects in P-ESDM group (n = 23) were recruited from 1.5- to 2.5-year-old toddlers who were screened positive in Xuhui and Minhang Districts and were diagnosed with ASD. A community (co...

Atmospheric benzene observations from oil and gas production in the Denver-Julesburg Basin in July and August 2014

Science.gov (United States)

Halliday, Hannah S.; Thompson, Anne M.; Wisthaler, Armin; Blake, Donald R.; Hornbrook, Rebecca S.; Mikoviny, Tomas; Müller, Markus; Eichler, Philipp; Apel, Eric C.; Hills, Alan J.

2016-09-01

High time resolution measurements of volatile organic compounds (VOCs) were collected using a proton-transfer-reaction quadrupole mass spectrometry (PTR-QMS) instrument at the Platteville Atmospheric Observatory (PAO) in Colorado to investigate how oil and natural gas (O&NG) development impacts air quality within the Wattenburg Gas Field (WGF) in the Denver-Julesburg Basin. The measurements were carried out in July and August 2014 as part of NASA's "Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality" (DISCOVER-AQ) field campaign. The PTR-QMS data were supported by pressurized whole air canister samples and airborne vertical and horizontal surveys of VOCs. Unexpectedly high benzene mixing ratios were observed at PAO at ground level (mean benzene = 0.53 ppbv, maximum benzene = 29.3 ppbv), primarily at night (mean nighttime benzene = 0.73 ppbv). These high benzene levels were associated with southwesterly winds. The airborne measurements indicate that benzene originated from within the WGF, and typical source signatures detected in the canister samples implicate emissions from O&NG activities rather than urban vehicular emissions as primary benzene source. This conclusion is backed by a regional toluene-to-benzene ratio analysis which associated southerly flow with vehicular emissions from the Denver area. Weak benzene-to-CO correlations confirmed that traffic emissions were not responsible for the observed high benzene levels. Previous measurements at the Boulder Atmospheric Observatory (BAO) and our data obtained at PAO allow us to locate the source of benzene enhancements between the two atmospheric observatories. Fugitive emissions of benzene from O&NG operations in the Platteville area are discussed as the most likely causes of enhanced benzene levels at PAO.

Atmospheric Benzene Observations from an Oil and Gas Field in the Denver Julesburg Basin in July and August 2014

Science.gov (United States)

Halliday, Hannah S.; Thompson, Anne M.; Wisthaler, Armin; Blake, Donald; Hornbrook, Rebecca S.; Mikoviny, Tomas; Mueller, Markus; Eichler, Philipp; Apel, Eric C.; Hills, Alan

2016-01-01

High time resolution measurements of volatile organic compounds (VOCs) were collectedusing a proton-transfer-reaction quadrupole mass spectrometry (PTR-QMS) instrument at the PlattevilleAtmospheric Observatory (PAO) in Colorado to investigate how oil and natural gas (ONG) developmentimpacts air quality within the Wattenburg Gas Field (WGF) in the Denver-Julesburg Basin. The measurementswere carried out in July and August 2014 as part of NASAs Deriving Information on Surface Conditions fromColumn and Vertically Resolved Observations Relevant to Air Quality (DISCOVER-AQ) field campaign. ThePTR-QMS data were supported by pressurized whole air canister samples and airborne vertical and horizontalsurveys of VOCs. Unexpectedly high benzene mixing ratios were observed at PAO at ground level (meanbenzene 0.53 ppbv, maximum benzene 29.3 ppbv), primarily at night (mean nighttime benzene 0.73ppbv). These high benzene levels were associated with southwesterly winds. The airborne measurementsindicate that benzene originated from within the WGF, and typical source signatures detected in the canistersamples implicate emissions from ONG activities rather than urban vehicular emissions as primary benzenesource. This conclusion is backed by a regional toluene-to-benzene ratio analysis which associated southerlyflow with vehicular emissions from the Denver area. Weak benzene-to-CO correlations confirmed that trafficemissions were not responsible for the observed high benzene levels. Previous measurements at the BoulderAtmospheric Observatory (BAO) and our data obtained at PAO allow us to locate the source of benzeneenhancements between the two atmospheric observatories. Fugitive emissions of benzene from ONGoperations in the Platteville area are discussed as the most likely causes of enhanced benzene levels at PAO.

PERCEPTION STUDENT OF DEPARTMENT GUIDANCE AND COUNSELING AT UNIVERSITAS MUHAMMADIYAH METRO INTO SCHOOL COUNSELOR PROFESSION

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SERLI NOVITA SARI

2015-06-01

Full Text Available Abstract: Guidance and Counseling Teaching profession is a profession with dignity and requiring scientific competence and qualifications. Many emerging negative perception, even from students of guidance and counseling to the profession of guidance and counseling. The problem in this research is formulated as follows: "What are the perceptions students of Guidance and Counselling, University of Muhammadiyah Metro the teaching profession Counseling?". The goal is to find out how students' perceptions of Guidance and Counselling, University of Muhammadiyah Metro the teaching profession Guidance and Counseling. The method used is quantitative descriptive. The population is students of guidance and counseling, the sample totaled 175 students. Instruments used in the form of Likert scale. The data analysis technique used percentages. The results showed that students' perceptions BK UM Metro is at a very high category to the teaching profession Guidance and Counseling. Suggestions put forward are: Based on these results, the researchers gave some suggestions are as follows: 1 for lecturers to add hours of practicum BK for students, and provide student guidance and counseling opportunities to interact more with teacher guidance and counseling directly in schools, and 2 the students are expected to apply to run a positive perception of the teaching profession Counseling well. Keywords: Perception, Student, Guidance and Counseling

Um satélite brasileiro para observação do diâmetro solar

Science.gov (United States)

Emilio, M.; Leister, N. V.; Benevides Soares, P.; Teixeira, R.; Kuhn, J.

2003-08-01

Propomos uma missão espacial para medir a forma e o diâmetro solar com o objetivo de ajudar a determinar o potencial gravitacional do Sol e a sua rotação com precisão, testar modelos teóricos de variação de energia e pela primeira vez medir os modos g de oscilação. As observações serão obtidas através do instrumento denominado APT (Astrometric and Photometric Telescope) descrito por Kuhn(1983). A sensibilidade do instrumento é de 0,2 mas em 27 dias para as observações do diâmetro solar feitas a cada minuto. Esta é uma missão de três anos de duração e pode complementar as medidas que serão feitas pelo satélite PICARD (a ser lançado em 2007). Outros parâmetros físicos podem ser obtidos com as mesmas imagens o que certamente interessará à comunidade de física solar. Um primeiro contato foi realizado com a agência espacial brasileira que pretende lançar um satélite científico a cada dois anos.

Mejora de la calidad de las medidas de ozono mediante un fotómetro UV de referencia

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C. Sánchez Blaya

2001-11-01

Full Text Available La Directiva 92/72/CE hace referencia al método de análisis descrito en la UNE 77-221:2000 y a que los analizadores de ozono se deben calibrar con un fotómetro UV de referencia o con un patrón transferido.De la necesidad de desarrollar un procedimiento que asegure la calidad y la trazabilidad de las mediciones en España, el Área de Contaminación Atmosférica ha decidido implantar un fotómetro UV de referencia NIST como patrón de ozono.Teniendo en cuenta los procedimientos empleados por EPA y NIST, se ha desarrollado un procedimiento de verificación consistente en la realización de 6 comparaciones del Patrón Transferido frente al Fotómetro UV de Referencia NIST, en días diferentes, analizándose, como mínimo, 5 concentraciones de ozono diferentes. Cada comparación se inicia y se finaliza siempre con una concentración de 0 ppb de O3. De cada comparación se obtiene una regresión lineal.Una vez realizadas las 6 comparaciones se obtiene la Recta de calibración y se calcula la incertidumbre asociada al patrón transferido.Se ha realizado la verificación de 17 patrones transferidos de los que 11 son fotómetros UV, 2 son generadores de ozono y 4 son generadores de ozono de bancos de dilución.De los resultados se concluye que las incertidumbres de los generadores de ozono, en general, son mayores que las de los fotómetros UV, recomendándose estos últimos como patrones transferidos.Destacar que mediante la utilización de los patrones transferidos para la calibración de analizadores de ozono se garantiza tanto la calidad como la trazabilidad de los datos generados.

Algoritmo PSO para identificación de parámetros en un motor DC

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César Duarte

2010-01-01

Full Text Available En este artículo se presenta la aplicación del algoritmo Particle Swarm Optimization (PSO como estrategia de búsqueda para determinar los parámetros de un sistema tipo caja gris. Este proceso de identificación se ilustra utilizando la respuesta a un escalón de un motor DC en lazo abierto. Para agilizar la identificación del sistema a través del uso de PSO, se limita el espacio de búsqueda usando la información que puede extraerse de la respuesta en el dominio del tiempo del sistema a identificar. Los resultados del proceso de identificación de los parámetros del motor se obtienen utilizando la herramienta PSOt disponible para entorno Matlab® desarrollada por Brian Birge.

STUDY ON ENERGY EXCHANGE PROCESSES IN NORMAL OPERATION OF METRO ROLLING STOCK WITH REGENERATIVE BRAKING SYSTEMS

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A. O. Sulym

2017-10-01

Full Text Available Purpose. The analysis of the existing studies showed that the increasing of energy efficiency of metro rolling stock becomes especially important and requires timely solutions. It is known that the implementation of regenerative braking systems on rolling stock will allow significantly solving this problem. It was proved that one of the key issues regarding the introduction of the above-mentioned systems is research on efficient use of electric energy of regenerative braking. The purpose of the work is to evaluate the amount of excessive electric power of regenerative braking under normal operation conditions of the rolling stock with regenerative braking systems for the analysis of the energy saving reserves. Methodology. Quantifiable values of electrical energy consumed for traction, returned to the contact line and dissipated in braking resistors (excessive energy are determined using results of experimental studies of energy exchange processes under normal operating conditions of metro rolling stock with regenerative systems. Statistical methods of data processing were applied as well. Findings. Results of the studies analysis of metro rolling stock operation under specified conditions in Sviatoshinsko-Brovarskaia line of KP «Kyiv Metro system» stipulate the following: 1 introduction of regenerative braking systems into the rolling stock allows to return about 17.9-23.2% of electrical energy consumed for traction to the contact line; 2 there are reserves for improving of energy efficiency of rolling stock with regenerative systems at the level of 20.2–29.9 % of electrical energy consumed for traction. Originality. For the first time, it is proved that the most significant factor that influences the quantifiable values of the electrical energy regeneration is a track profile. It is suggested to use coefficients which indicate the amount and reserves of unused (excessive electrical energy for quantitative evaluation. Studies on

UTILIDAD DEL PERÍMETRO ABDOMINAL COMO MÉTODO DE CRIBAJE DEL SÍNDROME METABÓLICO EN LAS PERSONAS CON HIPERTENSIÓN ARTERIAL

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Roberto Genique Martínez

2010-01-01

Full Text Available Fundamento: Para el diagnóstico de Síndrome Metabólico (SM los criterios mas utilizados son los propuestos, por el ATP-III del NCEP de 2001, actualizados posteriormente en 2005. El perímetro de cintura es uno de los cinco criterios utilizados para su diagnóstico. Dada la elevada incidencia ajustada de enfermedad coronaria atribuible a este factor de riesgo, el objetivo de este trabajo es valorar la utilidad del perímetro de cintura como método de cribaje único de SM en la población con otros factores de riesgo muy prevalentes, como la HTA. Método: Estudio de casos (pacientes hipertensos con SM y controles (pacientes hipertensos sin SM. Mediante muestreo sistemático de la totalidad de individuos hipertensos de un cupo de Atención Primaria con resultados de al menos una analítica sanguínea desde el 1/07/2007 hasta 31/12/2007. El tamaño muestral fue de 137 individuos (casos = pacientes hipertensos con SM = 60 y controles = pacientes hipertensos sin SM=77. Se utilizó el test de regresión logística para el cálculo de la probabilidad de SM disponiendo únicamente del perímetro abdominal. Resultados: Los resultados para el objetivo principal fueron: Probabilidad de SM en población hipertensa=1/(1+2,718281828-(-10+ (perímetro x 0,097, Probabilidad de SM en mujeres hipertensas=1/ (1+2,718281828-(-10+ (perímetro x 0,099, Probabilidad de SM en varones hipertensos=1/(1+2,718281828-(-10+ (perímetro x 0,105. Conclusiones: Utilizando una calculadora podría predecirse la probabilidad de SM en personas hipertensas con el perímetro de cintura como única variable, priorizando mejor a los pacientes con más necesidad preventiva y mayor riesgo cardiovascular. Se propone una tabla con los cálculos ya realizados.

2014 Oregon Department of Geology and Mineral Industries (DOGAMI) Oregon Lidar: Metro Portland, OR

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — The dataset encompasses 1221.6 square miles in portions of the greater Portland Metro area in the state of Oregon. The highest hit digital surface models (DSM)...

Soldadura TIG de espumas de aluminio. Análisis de los parámetros operacionales de espumado

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Portolés, A.

2011-06-01

Full Text Available In this work the influence of main parameters that take part during TIG welding process are analyzed. Some of these parameters belong to the welding process, as for example the welding speed, intensity and voltage while others are from the material and tooling features, as for example foaming material and tooling design. The result of this work shows a strong dependence on these parameters of the TIG welding process for metallic foams.

En este trabajo se analiza la influencia de los principales parámetros que intervienen en el proceso de soldadura TIG. Algunos de estos parámetros pertenecen al proceso de soldadura, velocidad de soldadura, intensidad y tensión, mientras otros son propios de las características del material y el utillaje, material precursor y forma de implementar la instalación de ensayo. El resultado de este trabajo muestra una fuerte dependencia de estos parámetros con el proceso de soldadura TIG para las espumas metálicas de aluminio.

Un algoritmo de replanificación en tiempo real basado en un índice de estabilidad de Lyapunov para líneas de metro

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A. Berbey

2014-04-01

Full Text Available Resumen: En este trabajo, se propone un nuevo índice basado en el método directo de Lyapunov para el diseño de un algoritmo de reprogramación en tiempo real para líneas de metro. En este estudio se utiliza una versión modificada de un modelo de espacio de estados en tiempo real discreto, que considera los efectos de saturación en la línea de metro. Una vez que el modelo de espacio de estados se ha obtenido, el método directo de Lyapunov se aplica con el fin de analizar la estabilidad del sistema de la línea de metro. Como resultado de este análisis no sólo se propone un nuevo índice de estabilidad, sino también la creación de tres zonas de estabilidad para indicar el estado actual del sistema. Finalmente, se presenta un nuevo algoritmo que permite la reprogramación del calendario de los trenes en tiempo real en presencia de perturbaciones medianas. Abstract: A new Lyapunov-based index for designing a rescheduling algorithm in real time for metro lines has been proposed in this paper. A modified real time discrete space state model which considers saturation effects in the metro line has been utilized in this study. Once the space state model has been obtained, the direct method of Lyapunov is applied in order to analyze the stability of the metro line system. As a result of this analysis not only a new stability index is proposed, but also the establishment of three stability zones to indicate the current state of the system. Finally, a new algorithm which allows the rescheduling of the timetable in the real time of the trains under presence of medium disturbances has been presented. Palabras clave: Sistema de metro, estabilidad de Lyapunov, planificación en tiempo real, Keywords: Metro system, Lyapunov stability, real time planning, traffic regulation

Novo tipo de evaporímetro terrestre A new type of evaporimeter

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Rino N. Tosello

1960-01-01

Full Text Available No presente trabalho descreve-se um novo tipo de evaporímetro, cujo princípio de funcionamento está baseado em leis físicas que regem o fenômeno de tensão superficial. Neste tipo de evaporímetro a medida da evaporação é feita por processo volumétrieo, dispensando o emprego de mecanismos de precisão e dispendiosos. Foi feita uma análise matemática do princípio de funcionamento do novo evaporímetro, demonstrando-se oferecer exatidão plenamente satisfatória para propósitos práticos. São dados suficientes detalhes construtivos, de instalação e operação, a fim de permitir que pessoas e entidades interessadas possam reproduzi-lo e comprovar as vantagens de seu emprêgo.In this paper is described a new type of evaporimeter, the principle of operation of which is based on physical laws governing the surface tension phenomenon. The measurement of evaporation in, the new evaporimeter, described as Evaporimeter IA-58, is made by simple volumetric procedure, thus avoiding the use of precise and expensive mechanisms. A mathematical analysis of the principle of operation is made, and proves that the new evaporimeter can offer satisfactory xeaults for practical use. The operation of the new evaporimeter is very simple, since only volumetric measurements are made, with a graduated cylinder of 1000 ml, both of the added water to restore the water level to the same initial level and the outflown or excess water. It is believed that enough details are given to allow the understanding of the construction, installation and operation of the new evaporimeter, bo that interested persons or organizations could have the model reproduced and verify the advantage of its use.

Selected Private Higher Educational Institutions in Metro Manila: A DEA Efficiency Measurement

Science.gov (United States)

de Guzman, Maria Corazon Gwendolyn N.; Cabana, Emilyn

2009-01-01

This paper measures the technical efficiency of 16 selected colleges and universities in Metro Manila, Philippines, using academic data for the SY 2001-2005. Using the data envelopment analysis (DEA), on average, schools posted 0.807 index score and need additional 19.3% efficiency growth to be efficient. Overall, there are top four efficient…

Analisis Framing Pemberitaan Kisruh Partai Golkar Pasca Keputusan Menkumham Dalam Program Dialog Primetime News Metro TV Dan Kabar Petang TVOne

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Etika Widya Kusumadewi

2016-12-01

Full Text Available In the span of 2014 to 2015, the Golkar Party experienced a tumultuous duality of leadership between Aburizal Bakrie and Agung Laksono version. The Government through the Ministry of Justice and Human Rights issued a decree stating Golkar Party Agung Laksono version is a legitimate stewardship. Two national television news station, Metro TV and TVOne, which are both owned by political party leaders, also 'warm' to the conflict on both sides. This study aims to understand, analyze, describe and compare dialog program Primetime News Metro and Evening News TVOne in framing news Golkar chaotic post-issuance of a decree by the Minister of Justice and Human Rights. Data analysis techniques used in this research is the analysis method with the paradigm framing or constructionist approach. This study uses a model framing analytical approach by using categorization Murray Edelman. From the results of research show can be quite impartial Metro while TVOne are beyond reasonable limits. Both seemed to favor and do not promote objectivity. Media ownership is considered to impact content that do both. Pada rentang waktu 2014 hingga 2015 Partai Golkar mengalami kisruh dualisme kepemimpinan yakni Golkar Aburizal Bakrie versi Munas Bali dan Golkar Agung Laksono versi Munas Jakarta. Menkumham kemudian mengeluarkan SK yang semakin membuat panas tubuh partai. Dua media televisi nasional, Metro TV dan TVOne, yang keduanya dimiliki oleh pimpinan partai politik, turut ‘menghangatkan’ konflik kedua kubu. Penelitian ini bertujuan untuk memahami, menganalisis, mendeskripsikan serta menbandingkan program dialog Primetime News Metro TV dan Kabar Petang TVOne dalam membingkai pemberitaan kisruh partai Golkar pasca dikeluarkannya SK Menkumham yang isinya menyatakan Golkar Agung Laksono adalah kepengurusan yang sah. Teknik analisis data yang digunakan dalam penelitian ini adalah metode analisis framing dengan paradigma atau pendekatan konstruksionis. Penelitian ini

Metro passengers’ route choice model and its application considering perceived transfer threshold

Science.gov (United States)

Jin, Fanglei; Zhang, Yongsheng; Liu, Shasha

2017-01-01

With the rapid development of the Metro network in China, the greatly increased route alternatives make passengers’ route choice behavior and passenger flow assignment more complicated, which presents challenges to the operation management. In this paper, a path sized logit model is adopted to analyze passengers’ route choice preferences considering such parameters as in-vehicle time, number of transfers, and transfer time. Moreover, the “perceived transfer threshold” is defined and included in the utility function to reflect the penalty difference caused by transfer time on passengers’ perceived utility under various numbers of transfers. Next, based on the revealed preference data collected in the Guangzhou Metro, the proposed model is calibrated. The appropriate perceived transfer threshold value and the route choice preferences are analyzed. Finally, the model is applied to a personalized route planning case to demonstrate the engineering practicability of route choice behavior analysis. The results show that the introduction of the perceived transfer threshold is helpful to improve the model’s explanatory abilities. In addition, personalized route planning based on route choice preferences can meet passengers’ diversified travel demands. PMID:28957376

Efeito da escarificação sobre alguns parâmetros físicos de um planossolo

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R.L.T. Machado

1997-09-01

Full Text Available Em face da importância do planossolo (Albaqualf nas atividades agrícolas desenvolvidas na região Sul do estado do Rio Grande do Sul, Brasil, estudou-se o efeito de um escarificador sobre alguns parâmetros físicos desse solo, no Campo Experimental de Máquinas Agrícolas da EMBRAPA-CPACT, no Município do Capão-do-Leão, em novembro de 1994. Analisou-se esse efeito sobre a densidade, porosidade e agregação do solo, utilizando três velocidades de operação do escarificador (4,76; 3,63 e 2,58 km h-1 e dois teores de água (119,6 e 71,7 g kg-1 no solo. Não houve efeito significativo da interação teor de água x velocidade de operação sobre os parâmetros físicos do solo. As condições físicas do solo foram melhoradas, quando o solo foi preparado com maior teor de água no solo, com exceção da densidade e macroporosidade do solo, as quais não foram influenciadas pelo teor de água no solo. A velocidade de deslocamento do escarificador não apresentou influência sobre os parâmetros físicos do solo estudados, com exceção do diâmetro médio geométrico e estabilidade dos agregados do solo, que apresentaram melhores resultados na menor velocidade de deslocamento.

Proyecto de construcción de la línea de Metro Ligero: tramo Monterrozas-Las Rozas

OpenAIRE

Cabañas Pellicer, Darío

2015-01-01

El presente Proyecto Constructivo define las obras necesarias para la construcción de la infraestructura de la línea de Metro Ligero Monterrozas- Las Rozas. La línea comienza discurriendo por el bulevar central de la Calle Camilo José Cela, donde efectúa dos paradas. La primera se encuentra a la altura de la Biblioteca Leon Tolstoi, mientras que la segunda se sitúa entre el Heron City y Las Rozas Village. Se diseña así la línea de transporte guiado urbano tipo metro ligero, y la definición al...

La ampliación del Metro en la periferia de Madrid (1999-2011

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Miguel Á Alonso-Neira

2013-09-01

Full Text Available El crecimiento de población y empleo en la metrópoli de Madrid implica un aumento de la movilidad y de su complejidad. Este trabajo analiza cómo influye esta situación en el planeamiento de los transportes públicos del gobierno de Madrid, cuyo principal esfuerzo inversor se ha centrado desde 1999 en la ampliación de la red de Metro hacia los municipios que rodean la ciudad. El análisis de la eficiencia de estas ampliaciones ofrece los siguientes resultados: i el menor coste de la inversión de metro ligero ha permitido reducir los problemas financieros de los gobiernos madrileños; y ii la demanda por los nuevos servicios de transporte aumenta durante los primeros años, aunque desciende posteriormente. Estas conclusiones sugieren la complejidad de las decisiones económicas y políticas de estas ampliaciones, adaptadas a la evolución policéntrica y dispersa de Madrid.

REGRESIÓN BAYESIANA LINEAL PARA CALIBRAR LOS PARÁMETROS DE UN MODELO DE HORNO DE ARCO

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Jesser James Marulanda Durango

2013-01-01

Full Text Available Este documento presenta la calibración de los parámetros de un modelo de horno de arco eléctrico, que tiene en cuenta la naturaleza no lineal y la impedancia variable que exhibe este tipo de carga. A partir de la ecuación diferencial no lineal que describe la característica estática voltaje-corriente del arco eléctrico, se establece una ecuación equivalente lineal que facilita el ajuste de las constantes del modelo, usando mediciones reales de voltaje y de corriente tomadas en la etapa más crítica de la operación del horno. Se muestra el procedimiento de ajuste de los parámetros del modelo usando regresión Bayesiana Lineal. Se presenta a través de gráficas, la relación entre los parámetros del modelo de la etapa determinista y el comportamiento de la varianza de las funciones de densidad de probabilidad Gaussianas a posterior con el número de datos usados para la calibración del modelo. La validación de los resultados obtenidos se realiza simulando el modelo con los parámetros estimados para luego comparar éstos con mediciones reales. Se ha utilizado un medidor de Flicker que cumple con el estándar CEI IEC 61000-4-15 para determinar la Sensación Instantánea de Flicker (IFL de las fluctuaciones presentes en las formas de onda reales y simuladas de las corrientes del arco eléctrico. Adicionalmente, se presenta en una gráfica el contenido armónico real y simulado de las corrientes de fase generadas en el horno.

Optimal Energy Management, Location and Size for Stationary Energy Storage System in a Metro Line Based on Genetic Algorithm

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Huan Xia

2015-10-01

Full Text Available The installation of stationary super-capacitor energy storage system (ESS in metro systems can recycle the vehicle braking energy and improve the pantograph voltage profile. This paper aims to optimize the energy management, location, and size of stationary super-capacitor ESSes simultaneously and obtain the best economic efficiency and voltage profile of metro systems. Firstly, the simulation platform of an urban rail power supply system, which includes trains and super-capacitor energy storage systems, is established. Then, two evaluation functions from the perspectives of economic efficiency and voltage drop compensation are put forward. Ultimately, a novel optimization method that combines genetic algorithms and a simulation platform of urban rail power supply system is proposed, which can obtain the best energy management strategy, location, and size for ESSes simultaneously. With actual parameters of a Chinese metro line applied in the simulation comparison, certain optimal scheme of ESSes’ energy management strategy, location, and size obtained by a novel optimization method can achieve much better performance of metro systems from the perspectives of two evaluation functions. The simulation result shows that with the increase of weight coefficient, the optimal energy management strategy, locations and size of ESSes appear certain regularities, and the best compromise between economic efficiency and voltage drop compensation can be obtained by a novel optimization method, which can provide a valuable reference to subway company.

Estimación de los parámetros del modelo de Heston. Una aplicación al índice IBEX 35

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Marabel Romo, Jacinto

2010-01-01

Full Text Available En este artículo se aborda la calibración de los parámetros del modelo de Heston, utilizando datos correspondientes al índice IBEX 35. Uno de los parámetros más importantes del modelo, es el relativo a la volatilidad de la varianza instantánea. Los resultados muestran que la estimación correspondiente a dicho parámetro, obtenida con datos de volatilidad realizada para el período anterior a la crisis financiera iniciada en agosto de 2007, es considerablemente inferior al obtenido calibrando el modelo a las opciones cotizadas para dicho mes. Por el contrario, el valor estimado con los datos de volatilidad realizada posteriores al inicio de la crisis, es similar al obtenido utilizando volatilidades implícitas. Este hecho muestra el problema para la correcta valoración y gestión del riesgo derivado de las opciones, que conlleva la estimación de los parámetros exclusivamente en base a datos históricos, sin considerar las expectativas que incorporan las volatilidades implícitas de mercado

Somatic mutation in peripheral blood lymphocytes among Metro Manila residents: indicator of exposure to environmental pollution

International Nuclear Information System (INIS)

Yulo-Nazarea, M.T.; Cobar, M.L.C.; Endriga, M.A.; Sta Maria, E.J.; Nato, A.Q.; Eduardo, J.; Dy, R.

1994-01-01

Metro Manila is ranked as one of the world's most polluted cities where air quality levels are 2-3 times higher than the levels set by WHO. Development of diseases could be alleviated if early warning signs as occurrence of gene mutations are detected early enough. The adapted hypoxanthine guanine phosphoribosyl transferase (HGPRT) mutation assay measures the degree of mutation on the HGPRT gene and allows rapid evaluation of the occurrence of mutation in an individual exposed to radiation or mutagens within six months after exposure. The objective of the project is to (1) assay exposure of Metro Manila residents exposed to environmental pollution, (2) determine population groups significantly affected by pollutants and (3) construct an environmental baseline HGPRT mutation data bank specific to area in Metro Manila. A composite table of personal information of donors against mutation index in two barangays in Venezuela is presented. About 30% of the total samples are shown to have mutation index greater than 0.5. So far, the data show a slightly higher mutation rate among donors who are smokers with more than 5 hours outdoor exposure to pollutants per day than the corresponding class of non-smokers. (author). 5 refs.; 5 tabs

Ranking of Metro Corridors Basing on Environmental and Occupational Health Impacts in a Construction Organization in India, Using Madm Approach

OpenAIRE

SUNKU VENKATA-SIVA-RAJA-PRASAD; PASUPULATI VENKATA-CHALAPATHI

2015-01-01

 Infrastructure development being the major construction activity undertaken with the support of the Government to eradicate poor transport infrastructure, to cater to ever-increasing population, to reduce the usage of own vehicle and environmental impact thereof, the concept of mass rapid transit system came into existence. Among the various mass rapid transit system modes, Metro rail construction was picked up in several cities in India. The execution of metro rail involves many painstaking...

Representasi Perempuan Indonesia Dalam Ajang Penghargaan Televisi (Studi Feminisme pada Penghargaan Indihome Women Award Di Metro TV

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Ahmad Toni

2014-01-01

Full Text Available Television personality award for the motor marketing television programs itself, the need to raise the rating and share. The awards were recently held by MetroTV devoted to female finalists Indonesia called modern Kartini. This study aimed to describe the representation of women in the awards Indihome Women Award at Metro TV. The method used consciousness-raising method, a method to generate knowledge and awareness in terms of women's issues and women movement within the frame of the mass media (television. This study used a qualitative descriptive method with emphasis on the reality of the media that have a relationship or context with social reality in Indonesia. The results showed the awards event Indihome Women Award in Metro women disepresentasikan as duality and ambiguity in the system of nation building; (1 Women look no further indicate the identity and values alignment on national development map but are represented at the level of the worse off, (2 Women made a movement which is represented as a capitalist agent, (3 Women and the movement into the implementation of a number of representations of themselves and movements performed in the frame of self falsehood.

The effect of topography on the choice of optimal step intermediate supports along the line of the cable metro

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Lagerev A.V.

2017-09-01

Full Text Available In article was formulated and solved the problem of conditional nonlinear optimization of the distance between inter-mediate supports during the design of the cable metro lines in highly urbanized environment, taking into account not the horizontal surface of the terrain. The optimization problem involves a single-criterion objective function that expresses the cost of construction of the cable metro line (total cost of intermediate supports and their foundations, traction and carrying steel cables and technical equipment. The specified objective function subject to minimization by finding the optimal combination of the distance between intermediate supports and tension carrying ropes with accounting con-structive, modal, structural and planning constraints in the form of nonlinear inequalities. When constructing the objec-tive function were considered three possible forms sagging of carrying ropes, which can be implemented for various values of the efforts of their tension. Analysis was done of the influence of the angle of the longitudinal slope of the surface relief along the line of the cable metro on the value of the optimal distance between intermediate supports de-pending on the design and cost of intermediate supports and at the cost of 1 km line of the cable metro. Quantitative calculations showed that with the increase of the longitudinal slope of the surface construction cost also increases with nonlinear increasing rate. The dependence of the cost of 1 km of line underground cable metro from the parameters of the relief is of extreme character with a pronounced minimum at small angles of inclination of the terrain surface about 3...60 degrees. The position of the minimum is quite stable and only slightly changes when enough significant change in the cost of intermediate supports and installed on them technological equipment. The most effective conditions for the construction of the cable metro is the terrain with considerable

Análise inversa para determinação de parâmetros de deformabilidade de solos

OpenAIRE

Guimarães, Adinele Gomes

2008-01-01

A previsão do comportamento mecânico de maciços de solos requer a utilização de modelos constitutivos que representem mais adequadamente sua relação tensão-deformação. Alguns modelos podem incluir parâmetros de difícil obtenção em laboratório e sua determinação, ao envolver julgamentos de engenharia, é mais bem consumada por usuários experientes de um modelo particular. Alternativamente, os parâmetros podem ser obtidos utilizando a análise inversa. O procedimento matemático consiste, basicame...

Three-dimensional numerical analysis of stress and deformation of surrounding soil in safety construction of metro station

International Nuclear Information System (INIS)

Fung, I W H; Wang, J A; Au, A S K; Zhou, Y F

2008-01-01

Utilizing underground spaces synthetically has become an important task in urban planning and civil engineering in this century. Due to the complexity and uncertainty of technical issues in underground construction and soil engineering, construction safety arouses a great concern in underground construction industry. This paper focused on construction of an underground metro station, numerical analyses are carried out to estimate the possible stresses and deformations of surrounding soil and underground structures under the worse loading conditions to assess the structural design and construction safety. Influences of pit excavation on existing tunnel and surrounding spaces are discussed and the stability of main structure of metro station will be analyzed

Simulación del sistema CBTC en la Línea 1 de Metro de Ho Chi Minh

OpenAIRE

González Barquilla, Roberto

2011-01-01

El objeto del proyecto es simular el tráfico de trenes en una línea de metro bajo el control del sistema CBTC (Control de Trenes Basado en Comunicaciones). El objetivo final es la simulación de una línea de metro, bajo el sistema CBTC, comprobando que cumpla con los requerimientos contractuales de los intervalos de tiempo en la línea y el cumplimiento de la velocidad media en el recorrido de la línea. Para la realización de la simulación se utilizará un programa con el que a partir de los par...

2014 Oregon Department of Geology and Mineral Industries (DOGAMI) Oregon Lidar DEM: Metro Portland, OR

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — The dataset encompasses 1221.6 square miles in portions of the greater Portland Metro area in the state of Oregon. The highest hit digital surface models (DSM)...

Understanding household energy consumption patterns: When 'West Is Best' in Metro Manila

International Nuclear Information System (INIS)

Sahakian, Marlyne D.

2011-01-01

This paper addresses the topic of energy and development through a multi-disciplinary and systemic approach that combines environmental considerations with a social understanding of consumption. The focus is on electricity usage in the home and specifically lighting and cooling. Set in the urban mega-polis of Metro Manila, the Philippines, energy consumption is first placed in its biophysical perspective: the energy sources and electricity grid are presented, in relation to the Philippines as well as the region. The research findings then explore the social and cultural drivers behind household electricity consumption, revealing in several examples the strong influence of globalization-understood here as the flow of people, remittances, images and ideas. Policy recommendations are provided, based on the research results, with concluding remarks relevant to other similar contexts. - Research highlights: →Metro Manila household electricity consumption is environmentally significant. →The meaning given to electricity services varies by socio-economic group. →Structural conditions, such as building type, can lock-in energy consumption. →Global flows-people, ideas, remittances-influence local consumption patterns. →Social networks, rather than the individual consumer, can influence change.

Influencia de parámetros clínicos sobre la severidad de la recesión gingival localizada

OpenAIRE

A. García-Rubio; A.L. Bujaldón-Daza; A. Rodríguez-Archilla

2015-01-01

Introducción: La recesión gingival localizada es un problema de salud bucodental fundamental porque su progresión conduce a la pérdida dentaria. El propósito de este trabajo fue evaluar la influencia de distintos parámetros clínicos sobre la recesión gingival localizada. Material y métodos: Se estudiaron 40 pacientes con recesión gingival localizada en los que se analizaron diversos parámetros clínicos relacionados con la recesión gingival. Para la comparación de variables cuantitativas se ut...

Soil Investigation Aspects of a Complex Metro Project in Amsterdam

Science.gov (United States)

Herbschleb, Jurgen

The municipality of Amsterdam wishes to reduce the level of car traffic within the City Centre. As a consequence the public transport is to be extended by a new (bored) North/South Metro line. The excavation depths for the stations will exceed 30 m and will be constructed in difficult soft soil conditions. A further significant aspect is that the building pits are very near (3 to 5 m) to buildings of historical importance. The design philosophy of the station boxes was to determine an acceptable balance between the safety requirements and construction costs. The guidelines for the design, both for the building pits and the bored tunnel, are the predicted deformations of the adjacent building foundations. One of the more important geotechnical risks for this project is incorrect determination of the deformations arising from the building processes alongside the route of the metro. As such it should be realised that advanced finite element programs with second order material models require different geotechnical parameters than analytical models. The careful selection of calculation (soil) models, the level of safety (risk analysis), and site investigation is the start of the determination of the geotechnical parameters. This paper will focus on the interpretation of the site investigation for this complex project and will concentrate on the process followed, the problems encountered with the interpretation, the obtained results, and the used tools for geotechnical risk management.

El desarrollo de valores de referencia para el perímetro braquial según la estatura y su comparación con otros indicadores utilizados para el tamizaje del estado nutricional

Directory of Open Access Journals (Sweden)

Mei Z.

1998-01-01

Full Text Available Durante muchos años se han usado los valores de perímetro braquial inferiores a cierto límite como índice alternativo del estado nutricional de los menores de 5 años de edad en épocas de hambruna o crisis de refugiados y también como método adicional de tamizaje en situaciones normales. Sin embargo, recientemente se ha puesto en duda la independencia del perímetro braquial respecto de la edad y el sexo. Tras revisar las pruebas científicas en las que se basan el uso y la interpretación del perímetro braquial, un Comité de Expertos de la OMS recomendó nuevos valores de referencia de perímetro braquial según la edad en menores de 5 años. Sin embargo, en algunas situaciones es difícil evaluar la edad de un niño y en tales circunstancias el perímetro braquial según la altura puede ser una buena alternativa. La regla QUAC (del inglés Quaker arm circumference para medir la altura es un medio sencillo para determinar el punto de corte del perímetro braquial correspondiente a una altura dada. Este artículo describe los valores de referencia del perímetro braquial y la construcción y uso del medidor QUAC, así como la utilización del método de curvas de características funcionales (receiver operating characteristic curve para evaluar el rendimiento del perímetro braquial, el perímetro braquial según la edad y el perímetro braquial según la altura en la detección de niños malnutridos.

Desenvolvimento de um penetrômetro manual eletrônico - doi: 10.4025/actascitechnol.v33i1.5914

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Rafael Cesar Tieppo

2011-03-01

Full Text Available O excesso de tráfego de máquinas pode causar compactação prejudicial ao desenvolvimento da cultura. Uma das maneiras de se obter um indicativo de compactação é a resistência do solo à penetração (RSP. Assim, desenvolveu-se um penetrômetro eletrônico, seguindo a norma S313.2 ASAE (1998, tendo a haste 0,0095 m de diâmetro e o cone de 30° com 0,01283 m de diâmetro na base. Para o desenvolvimento do penetrômetro, utilizou-se um sistema para aquisição de dados, sensor de distância, sensor de força e barras circulares de aço inox para confecção da haste e do cone. O aparelho armazena os dados coletados a campo em uma frequência de 4 Hz, sendo estes posteriormente transferidos para um microcomputador, via interface RS232. Por meio de uma planilha eletrônica, os dados podem ser processados de acordo com a necessidade do usuário. Os sensores apresentaram confiabilidade em sua utilização, os arquivos de dados gerados pelo aparelho proporcionaram conforto e confiança no processamento de dados e os dados puderam ser reorganizados conforme a necessidade do usuário para, assim, evitar o erro de leitura pelo processo visual.

PARÁMETROS INERCIALES PARA EL MODELADO BIOMECÁNICO DEL CUERPO HUMANO

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M. Gutiérrez

2010-09-01

Full Text Available

RESUMEN

El presente trabajo expone una visión general de los parámetros inerciales necesarios para el modelado biomecánico del cuerpo humano desde una perspectiva biomecánica, realizando un análisis retrospectivo, situación actual así como tendencias futuras en este ámbito. El modelado del cuerpo humano implica la determinación de una serie de puntos anatómicos y segmentos interconectados, que deben ser complementados con información inercial como es la masa segmentaria, el vector posición del centro de gravedad, los ejes de un sistema de referencia local segmentario, así como los momentos de inercia. La obtención de estos parámetros inerciales se considera imprescindible para el análisis biomecánico ya que permiten obtener algunas variables consideradas como básicas en cualquier análisis cuantitativo del movimiento, como son el centro de gravedad (CG tanto segmentario como corporal, el momento de inercia (I y el momento angular (H segmentario y corporal.
PALABRAS CLAVE: Biomecánica, parámetros inerciales. .

ABSTRACT

This work gives a general view of the inertial parameters needed for the biomechanical modelling of the human body from the biomechanical point of view, making an analysis of the past, present situations and future tendencies in this subject. Human body modelling needs to determine several anatomical points and interconnected segments, which should be complemented with inertial information such as the segmentary mass, centre of gravity position vector, axes of the local segmentary reference system, and also the moments of inertia. The process of obtaining this inertial parameters is essential for biomechanical analysis since it enables us to obtain several basic variables needed in any quantitative analysis of movement, for example

A Study on the Radio Coverage in Underground Stations of the New Copenhagen Metro System

DEFF Research Database (Denmark)

Millan, Maria del Carmen de la O; Sørensen, Troels Bundgaard; Mikkelsen, Niels Michael

2013-01-01

In connection with the extension of the Copenhagen Metro system, architects and wireless operators met early in the design phase to plan the radio coverage inside the public areas of the metro transport system. Based on common best practice, an initial design for the antenna installations......, and hence radio coverage, was proposed for a distributed antenna system in each of two distinctly different types of underground stations. In this paper, we describe the considerations for the design, and specifically the modelling and analysis of the underground stations by way of a commercial ray......-tracing tool. Radio coverage results are given for different designs, including different number and types of antennas, their configuration and placement, as well as the dependency on frequency and construction materials and presence of trains on the station platforms. In a practical case like this...

Diseño y construcción de un reloj/termómetro electrónico con visor gigante

OpenAIRE

Sánchez Gutiérrez, Jorge Alfredo; Yapur Auad, Miguel Eduardo

2014-01-01

El crecimiento de la industria electrónica debido a los sistemas muy pequeños, de bajo costo, relativamente complejos, conocidos como circuitos integrados a muy grande escala, ha permitido que en un solo circuito podamos tener una calculadora o un reloj electrónico que remplaza al tradicional reloj mecánico de resorte o al de péndulo. Los termómetros digitales han remplazado a los tradicionales termómetros de mercurio y vidrio; son mucho más precisos y portátiles y pueden brindar algunas f...

Estimación de parámetros en sistemas de ecuaciones diferenciales ordinarias en modelos farmacocinéticos de dos compartimentos

Directory of Open Access Journals (Sweden)

José Arturo Montoya Laos

2013-12-01

Full Text Available En este trabajo se presenta una metodología estadística para estimar parámetros de sistemas de ecuaciones diferenciales ordinarias que modelan la cinética de fármacos en el organismo humano, utilizando modelos de dos compartimentos, los cuales se usan ampliamente en farmacocinética. La necesidad de usar un enfoque estadístico para estimar estos parámetros se debe principalmente a que la cinética de un fármaco varía de un individuo a otro, afectando los valores de los parámetros en el modelo. Se ilustra la metodología y el enfoque estadístico con datos de un estudio realizado en doce individuos, sobre la cinética de la teofilina en sus organismos. El modelo estadístico utilizado supone que para un tiempo dado, las observaciones se modelan con una densidad de probabilidad normal centrada en la solución numérica del sistema y su dispersión cambia en el tiempo, de acuerdo con el valor esperado del proceso. Para estimar los valores de los parámetros se utiliza un enfoque Bayesiano y el sistema de ecuaciones diferenciales se resuelve con un método numérico adecuado.

Parâmetros erosividade da chuva, da enxurrada e da chuva-enxurrada correlacionados com as perdas de solo de um luvissolo

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A. W. Albuquerque

2002-09-01

Full Text Available Foram estudadas as correlações lineares simples, múltiplas e não-lineares entre os parâmetros erosividade da chuva, da enxurrada e da chuva-enxurrada e as perdas de solo provocadas por chuvas erosivas num Luvissolo. Os dados correspondentes ao período de 1986-1990 foram obtidos na estação experimental de Sumé (PB, pertencente à Universidade Federal da Paraíba - UFPB. Para determinar os parâmetros erosividade da chuva, da enxurrada e da chuva-enxurrada, foram analisadas chuvas individuais registradas em 136 pluviogramas. O volume de enxurrada isolado ou em combinação com características da chuva contribuiu, de forma significativa, para melhorar a estimativa das perdas de solo de chuvas individuais. Os parâmetros erosividade da chuva-enxurrada a(Vu α I30b; a(Vu α I5b; a(EIAb e da enxurrada a(Vub foram os melhores estimadores das perdas de solo para chuvas individuais. Dentre os parâmetros da erosividade da chuva, os que melhor se correlacionaram com as perdas de solo foram aqueles que incluíram o produto do volume da chuva pela intensidade máxima em trinta minutos a(VrI30.

A evolução da noção de parâmetros The evolution of the notion of parameter

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Mary A. Kato

2002-01-01

Full Text Available Este trabalho apresenta uma retrospectiva do conceito de parâmetro na teoria de Princípios e Parâmetros e mostra que: a no primeiro estágio da teoria, os parâmetros eram concebidos como propriedades associadas a Princípios e b no segundo estágio, como propriedades do léxico, mais especificamente do léxico funcional.. Essa segunda visão também sofreu uma evolução, de um conceito substantivo, para um conceito formal de classes funcionais. O trabalho discute ainda a noção de parâmetros associados a diferentes níveis de representação.This paper presents an overview of the concept of parameter in the Principles and Parameters theory, showing that a in the first stage parameters were conceived as variation associated to the Principles and b in the second stage as properties of the lexicon, and more specifically as properties of functional categories. The latter view has also developed from a substantive conception of functional categories to a more formal abstract characterization of functional heads. The paper also discusses parameters related to different levels of representation.

Tonometer calibration in Brasília, Brazil Calibragem de tonômetros em Brasília, Brasil

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Fernanda Pires da Silva Abrão

2009-06-01

Full Text Available PURPOSE: To determine calibration errors of Goldmann applanation tonometers in ophthalmic clinics of Brasília, Brazil, and correlate the findings with variables related to tonometers model and utilization. METHODS: Tonometers from ophthalmic clinics in Brasília, Brazil, were checked for calibration errors. A standard Goldmann applanation tonometer checking tool was used to asses the calibration error. Only one trained individual made all verifications, with a masked reading of the results. Data on the model, age, daily use, frequency of calibration checking and the nature of the ophthalmic department - private or public - were collected and correlated with the observed errors. RESULTS: One hundred tonometers were checked for calibration. Forty seven percent (47/100 were out of 1 mmHg range at least at one point checking. Tonometers mounted to slit lamp, with less than 5 years, used in less than 20 patients daily, that had a calibration check on a yearly basis, and those from private office exhibit a lower rate of inaccuracy, but only the first variable was statistically significant. Sixty one percent of tonometers on public hospitals were out of calibration. CONCLUSION: Calibration of tonometers in the capital of Brazil is poor; those from general hospitals are worst, and this fact can lead to inaccurate detection and assessment of glaucoma patients, overall in the population under government assistance.OBJETIVOS: Determinar os erros de calibração dos tonômetros de aplanação de Goldmann em clínicas oftalmológicas de Brasília, Brasil, e correlacioná-los a variáveis relativas ao modelo e à utilização dos aparelhos. MÉTODOS: Tonômetros de clínicas oftalmológicas de Brasília tiveram a calibragem aferida usando um cilindro padrão fornecido pelo fabricante dos aparelhos. Todas as aferições foram realizadas por um só examinador previamente treinado e a leitura das medidas foi mascarada por um observador independente. As medidas

Parâmetros de planta para aprimorar o manejo da adubação nitrogenada de cobertura em milho

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Rambo Lisandro

2004-01-01

Full Text Available O milho é uma das culturas mais exigentes em fertilizantes nitrogenados os quais proporcionam os maiores acréscimos no rendimento de grãos. Para manter a planta bem nutrida, há necessidade de estimar corretamente a quantidade de nitrogênio (N que deve ser aplicada no solo, com intuito de satisfazer as suas necessidades durante todo o ciclo. No Rio Grande do Sul e Santa Catarina, o teor de matéria orgânica, a expectativa de rendimento de grãos e a contribuição da cultura antecedente como fonte de N são os parâmetros que têm servido como critério para recomendação de adubação nitrogenada no milho. No entanto, considerando a complexidade da dinâmica do N no solo, e todas as modificações que ocorrem durante a ontogenia desta cultura, outros parâmetros podem ser úteis para auxiliar na decisão sobre o manejo da adubação nitrogenada em cobertura. Vários parâmetros de planta têm sido estudados como indicadores do nível de N no tecido. Dentre estes, destacam-se o teor de nitrato no colmo, o teor e o acúmulo de N na folha e/ou planta e o teor relativo de clorofila na folha. A estimativa do teor de clorofila na folha pelo clorofilômetro tem sido bastante estudada nos últimos anos, em função da sua rapidez, precisão e baixo custo. Esta revisão visa abordar parâmetros de planta que podem ser utilizados como indicadores do nível de N na planta para predizer a necessidade de adubação nitrogenada em cobertura na cultura do milho, objetivando aumentar a eficiência de uso do nutriente e reduzir o impacto ambiental do N aplicado.

Framing Persoalan Indonesia Melalui Film Dokumenter Model Direct Cinema (Studi Pada Film-film Dokumenter Terbaik, Program Eagle Award Competitions Di Metro TV)

OpenAIRE

Styo Wibowo, Novin Farid

2013-01-01

FRAMING PERSOALAN INDONESIA MELALUI FILM DOKUMENTER MODELDIRECT CINEMA(STUDI PADA FILM-FILM DOKUMENTER TERBAIK, PROGRAM EAGLEAWARD COMPETITIONS DI METRO TV)Frames Indonesia Issues Through Direct Cinema DocumentaryFilm On Television (Framing Analysis of the 3 Best Documentary Film, Eagle AwardCompetitions Program at Metro TV)Novin Farid Styo WibowoJurusan Ilmu Komunikasi, Fakultas Ilmu Sosial dan Ilmu PolitikUniversitas Muhammadiyah MalangEmail : TThe research disc...

Environmental ground borne noise and vibration protection of sensitive cultural receptors along the Athens Metro Extension to Piraeus.

Science.gov (United States)

Vogiatzis, Konstantinos

2012-11-15

Attiko Metro S.A., the state company ensuring the development of the Athens Metro network, has recently initiated a new extension of 7.6 km, has planned for line 3 of Athens Metro from Haidari to Piraeus "Dimotikon Theatre" towards "University of Piraeus" (forestation), connecting the major Piraeus Port with "Eleftherios Venizelos" International Airport. The Piraeus extension consists of a Tunnel Boring Machine, 2 tracks and, tunnel sections, as well as 6 stations and a forestation (New Austrian Tunnelling Method) at the end of the alignment. In order to avoid the degradation of the urban acoustic environment from ground borne noise and vibration during metro operation, the assessment of the required track types and possible noise mitigation measures was executed, and for each section and each sensitive building, the ground borne noise and vibration levels will be numerically predicted. The calculated levels were then compared with ground borne noise and vibration level criteria. The necessary mitigation measures were defined in order to guarantee, in each location along the extension, the allowable ground borne Noise and Vibration max. levels inside nearby sensitive buildings taking into account alternative Transfer Functions for ground borne noise diffusion inside the buildings. Ground borne noise levels were proven to be higher than the criterion where special track work is present and also in the case of the sensitive receptor: "Dimotikon Theatre". In order to reduce the ground borne noise levels to allowable values in these sections, the installation of tracks and special track work on a floating slab was assessed and recommended. Copyright © 2012 Elsevier B.V. All rights reserved.

ANÁLISE DE PARÂMETROS OPERATIVOS DO SISTEMA HIDROTÉRMICO BRASILEIRO

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Maria Luiza Viana Lisboa

2014-08-01

Full Text Available 10.12957/cadest.2010.15735Neste trabalho será apresentada uma análise compreensiva das condições operativas do parque gerador brasileiro com um número crescente de usinas hidrelétricas com menor capacidade de regularização e uma maior penetração de usinas eólicas e de usinas termelétricas movidas a bagaço de cana de açúcar. Os fatores de participação térmicos adotados no modelo MELP são parâmetros utilizados para definição dos limites de geração média anual de usinas termelétricas nas condições de hidrologia média e crítica. Estes parâmetros são função da configuração do sistema e de dados econômicos como o custo de operação de usinas termelétricas. Será feita uma análise das possíveis alterações dos valores destes fatores ao longo do horizonte de planejamento até 2019, utilizando o programa NEWAVE. Resultados de simulações obtidos com o MELP levando em consideração a característica sazonal da geração serão mostrados e discutidos.

An infrastructure with a unified control plane to integrate IP into optical metro networks to provide flexible and intelligent bandwidth on demand for cloud computing

Science.gov (United States)

Yang, Wei; Hall, Trevor

2012-12-01

The Internet is entering an era of cloud computing to provide more cost effective, eco-friendly and reliable services to consumer and business users and the nature of the Internet traffic will undertake a fundamental transformation. Consequently, the current Internet will no longer suffice for serving cloud traffic in metro areas. This work proposes an infrastructure with a unified control plane that integrates simple packet aggregation technology with optical express through the interoperation between IP routers and electrical traffic controllers in optical metro networks. The proposed infrastructure provides flexible, intelligent, and eco-friendly bandwidth on demand for cloud computing in metro areas.

Effects of Job Accessibility Improved by Public Transport System: Natural Experimental Evidence from the Copenhagen Metro

DEFF Research Database (Denmark)

Pons Rotger, Gabriel Angel; Nielsen, Thomas Alexander Sick

2015-01-01

This study examines the effect of accessibility to urban jobs via a public transport system on individual earnings and commuting behaviour. The effect of improved public transport based accessibility on these outcomes is determined by exploiting the exogenous variation in access to a public rail...... and Metro system resulting from the construction of a new terminal Metro station connecting southern townships to Copenhagen city centre. The results show that public transport based job accessibility has a positive and permanent effect on individual earnings. The increase in earnings is associated...... with a change in commuting patterns as the improved access to public transport facilitates a shift from employment within the township to better paid jobs in the city centre, as well as in other suburbs of the Copenhagen Metropolitan area...

Metro-access integrated network based on optical OFDMA with dynamic sub-carrier allocation and power distribution.

Science.gov (United States)

Zhang, Chongfu; Zhang, Qiongli; Chen, Chen; Jiang, Ning; Liu, Deming; Qiu, Kun; Liu, Shuang; Wu, Baojian

2013-01-28

We propose and demonstrate a novel optical orthogonal frequency-division multiple access (OFDMA)-based metro-access integrated network with dynamic resource allocation. It consists of a single fiber OFDMA ring and many single fiber OFDMA trees, which transparently integrates metropolitan area networks with optical access networks. The single fiber OFDMA ring connects the core network and the central nodes (CNs), the CNs are on demand reconfigurable and use multiple orthogonal sub-carriers to realize parallel data transmission and dynamic resource allocation, meanwhile, they can also implement flexible power distribution. The remote nodes (RNs) distributed in the user side are connected by the single fiber OFDMA trees with the corresponding CN. The obtained results indicate that our proposed metro-access integrated network is feasible and the power distribution is agile.

DESENVOLVIMENTO, AUTOMAÇÃO E DESEMPENHO DE UM CONSOLIDÔMETRO COM INTERFACE HOMEM-MÁQUINA

Directory of Open Access Journals (Sweden)

Reginaldo Barboza da Silva

2015-04-01

Full Text Available O ensaio de consolidação preconiza a utilização de um consolidômetro. Esse equipamento, até então, não era produzido e comercializado no Brasil. Os modelos não automatizados disponíveis para importação, apesar da proposta de baixo custo, ainda são rústicos e necessitam de contínua calibração dos níveis de pressão durante a realização do ensaio. A exclusividade e intervenção de um técnico durante todo o ensaio, associada à precária coleta de dados nesses modelos, ainda são os principais fatores que têm inviabilizado a consolidação desse ensaio na ciência do solo brasileira. Como alternativa a esses problemas, este trabalho teve por objetivos desenvolver e automatizar um consolidômetro a partir de um Controlador Lógico Programável (CLP com interface homem-máquina (IHM. O equipamento é constituído de um gabinete de metal que aloja conjuntos de dispositivos pneumáticos, eletrônico-digital e atuadores de força e posição. O funcionamento de cada dispositivo de forma isolado ou conjugado é gerenciado por meio de um software em linguagem de programação ladder, que, a partir de um CLP com IHM incorporada, possibilita armazenar instruções e implementar funções. A interface entre o PC e o consolidômetro é feita pelo software CA-Linker, v 1.0, projetado especificamente para o equipamento. O uso do CLP com IHM incorporada permitiu o desenvolvimento e a automação do consolidômetro. O desempenho e a eficiência do conjunto de dispositivos (pneumáticos, eletrônico-digital e atuadores de força e pressão foram comprovados pelos excelentes resultados dos valores de deformação e pressão obtidos em função do tempo e, principalmente, do comportamento da curva de compressão, gerada pelos ensaios de compressão.

Migrant modernities and interstices of power: El metro by Donato Ndongo

OpenAIRE

Ilaria Rossini

2011-01-01

Starting from the novel El Metro Donato Ndongo, the article focuses on the relationship that the migrant establishes with Western culture. We highlight the feelings that prevail in the subject when it comes in contact with another world, characterized by innovative spaces and different habits. The subway station, a symbol of modernity in this novel, and an example of the complexity of relationships that arise in the city as a whole, shows that today reality is a blend of "otherness", a scenar...

Chemical source characterization of residential wood combustion emissions in Denver, Colorado; Bakersfield, California; and Mammoth Lakes, California

International Nuclear Information System (INIS)

Houck, J.E.; Goulet, J.M.; Chow, J.C.; Watson, J.G.

1989-01-01

The chemical composition of residential wood combustion particulate emissions was determined for fireplaces and woodstoves. Burn rates, burn patterns, wood burning appliances, and cordwood types characteristic of Denver, Colorado; Bakersfield, California; and Mammoth Lakes, California, were used during sample collection. Samples were collected using a dilution/cooling system to ensure that condensible compounds were captured. Analyses for 44 chemical species were conducted. Source profiles for use in chemical mass balance (CMB) modeling were calculated from the analytical data. The principal chemical species comprising the profiles were organic compounds and elemental carbon. The minor chemical species were sulfur, chlorine, potassium, sodium, calcium, zinc, nitrate, and ammonium. Virtually all potassium was in a water-soluble form, and sulfur emissions between fireplaces and woodstoves were noted. Area-specific source profiles for fireplaces, woodstoves, and overall residential wood combustion are presented

The Copenhagen Traffic Model and its Application in the Metro City Ring Project

DEFF Research Database (Denmark)

Vuk, Goran; Overgård, Christian Hansen; Fox, J.

2009-01-01

In June 2007, the Danish Parliament passed an act to finance the construction of the Metro City Ring in Copenhagen. The assessment project is based on the passenger patronage forecasts for 2015 from the Copenhagen traffic model. In this paper we show how the model forecasts for this particular...... infrastructure project can be explained through detailed knowledge of model structure and model validation....

Acelerômetro eletrônico e a placa Arduino para ensino de física em tempo real

OpenAIRE

Fábio Saraiva da Rocha; Guilherme Frederico Maranghello; Márcia Maria Lucchese

2013-01-01

http://dx.doi.org/10.5007/2175-7941.2014v31n1p98 Apresenta-se o projeto de um acelerômetro eletrônico triaxial voltado ao ensino de física experimental. Este dispositivo, quando acoplado adequadamente a um corpo, permite a leitura da aceleração imprimida ao conjunto. O acelerômetro funciona conectado eletronicamente à placa Arduíno sendo capaz de fornecer dados numéricos de aceleração que atualizam no decorrer de uma experiência. Tais dados podem ser disponibilizados através de tabelas e ...

Compressed Air Working in Chennai During Metro Tunnel Construction: Occupational Health Problems.

Science.gov (United States)

Kulkarni, Ajit C

2017-01-01

Chennai metropolis has been growing rapidly. Need was felt of a metro rail system. Two corridors were planned. Corridor 1, of 23 km starting from Washermanpet to Airport. 14.3 km of this would be underground. Corridor 2, of 22 km starting from Chennai Central Railway station to St. Thomas Mount. 9.7 km of this would be underground. Occupational health centre's role involved selection of miners and assessing their fitness to work under compressed air. Planning and execution of compression and decompression, health monitoring and treatment of compression related illnesses. More than thirty five thousand man hours of work was carried out under compressed air pressure ranged from 1.2 to 1.9 bar absolute. There were only three cases of pain only ( Type I) decompression sickness which were treated with recompression. Vigilant medical supervision, experienced lock operators and reduced working hours under pressure because of inclement environmental conditions viz. high temperature and humidity, has helped achieve this low incident. Tunnelling activity will increase in India as more cities will soon opt for underground metro railway. Indian standard IS 4138 - 1977 " Safety code for working in compressed air" needs to be updated urgently keeping pace with modern working methods.

Downsizing in the public sector: Metro-Toronto's hospitals.

Science.gov (United States)

Flint, Douglas H

2003-01-01

This study has two objectives. First, to predict the outcomes of a public sector downsizing; second to measure effects of downsizing at organizational and inter-organizational levels. Primary data to assess the organizational level effects was collected through interviews with senior executives at two of Metro-Toronto's hospitals. Secondary data, to assess the inter-organizational effects, was collected from government documents and media reports. Due to the exploratory nature of the study's objectives a case study method was employed. Most institutional downsizing practices aligned with successful outcomes. Procedures involved at the inter-organizational level aligned with unsuccessful outcomes and negated organizational initiatives. This resulted in an overall alignment with unsuccessful procedures. The implication, based on private sector downsizings, is that the post-downsized hospital system was more costly and less effective.

DISEÑO Y CONSTRUCCIÓN DE UN TERMÓMETRO ELECTRÓNICO DIGITAL BASADO EN LA TECNOLOGÍA DE LOS MICROCONTROLADORES

OpenAIRE

Collantes Mendoza, Abraham Eduardo

2015-01-01

En Medicina, en algunos casos existe la necesidad de monitorear la temperatura de dos partes del cuerpo en el mismo instante de tiempo; esto constituye un problema debido a la necesidad de utilizar dos termómetros y observar sus lecturas para monitorear dichas temperaturas. En el presente trabajo se desarrolla una solución basada en el diseño y la construcción de un termómetro electrónico digital que muestra dos lecturas, cuyo objetivo es medir la temperatura corporal, para lo cual se necesit...

Refractómetro de cubeta de sección cuadrada

OpenAIRE

Duque, M.F.; Gómez P, D., S.; Pinilla C, C.C.; Duque D., C.A.

2006-01-01

Con el fin de encontrar un método simple y confiable para medir el índice de refracción de sustancias líquidas, se diseñó y construyó un refractómetro de sección cuadrada de fácil montaje y disponibilidad conveniente en el que además se realizaron pruebas para mezclas liquidas agua - alcohol etílico a diferentes concentraciones de masa. En el presente artículo se presentan los resultados experimentales obtenidos en dichas pruebas, los cuales presentaron valores del índice de refracción con de...

Proceedings of a U.S. Geological Survey pressure-sensor Workshop, Denver, Colorado, July 28-31, 1992

Science.gov (United States)

Wilbourn, Sammy L.

1994-01-01

The U.S. Geological Survey (USGS) conducted a Pressure Sensor Workshop, oriented toward the measurement of stage in surface waters, in Denver, Colorado, July 28-31, 1992. Twenty attendees from the U.S. Geological Survey and the National Oceanic and Atmospheric Administration gave presentations concerning their experiences with the use of pressure sensors in hydrologic investigations. This report is a compilation of the abstracts of the presentations made at the workshop. Workshop participants concluded that each of the sensors evaluated by the U.S. Geological Survey has strengths and weaknesses. Personnel contemplating the use of pressure sensors discussed at this workshop should contact workshop attendees and consult with them about their experiences with those sensors. The attendees preferred to use stilling wells with float-operated water-level sensors as the primary means for monitoring water levels. However, pressure sensor systems were favored as replacements for mercury manometers and as alternatives to stilling wells at sites where stilling wells are not practical or cost effective.

Manômetros artesanais não medem com precisão a pressão de balão dos tubos endotraqueais

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Raquel Annoni

2015-09-01

Full Text Available RESUMOObjetivo:Testar a concordância entre dispositivos artesanais e um manômetro especificamente projetado para esse fim.Métodos:Testamos em 79 sujeitos a concordância entre as mensurações realizadas com 2 dispositivos artesanalmente adaptados para medir a pressão de balão dos tubos endotraqueais e as obtidas com uso de um manômetro específico para esse fim. A pressão de balão foi medida com um manômetro comercial e com dois dispositivos artesanais montados a partir de esfigmomanômetro aneroides. Os dados foram comparados utilizando os testes de Wilcoxon e Spearman, o coeficiente de correlação intraclasse e a análise do limite de concordância.Resultados:As pressões do balão medidas com os dispositivos artesanais foram significantemente diferentes das medidas obtidas com o dispositivo comercial (as pressões foram mais elevadas nas mensurações obtidas com o dispositivo artesanal 1 e mais baixas nas avaliações realizadas com o dispositivo artesanal 2. O coeficiente de correlação intraclasse entre o dispositivo comercial e os dispositivos 1 e 2 foi excelente (0,8; p < 0,001 e bom (0,66; p < 0,001, respectivamente. No entanto, os gráficos de Bland-Altman demonstraram limites amplos de concordância entre os dispositivos 1 e 2 e o dispositivo comercial.Conclusão:Os manômetros artesanais não proporcionam mensurações precisas da pressão do balão, quando comparados a um dispositivo específico para esse fim e, portanto, não devem ser utilizados na avaliação de pacientes mecanicamente ventilados em substituição aos manômetros comerciais específicos para avaliação da pressão do balão.

Uranium hydrogeochemical and stream sediment reconnaissance of the Denver NTMS quadrangle, Colorado

International Nuclear Information System (INIS)

1981-11-01

This report presents results of a Hydrogeochemical and Stream Sediment Reconnaissance of the Denver NTMS quadrangle, Colorado. In addition to this abbreviated data release, more complete data are available to the public in machine-readable form. These machine-readable data, as well as quarterly or semiannual program progress reports containing further information on the HSSR program in general, or on the Los Alamos National Laboratory portion of the program in particular, are available from DOE's Technical Library at its Grand Junction Area Office. Presented in this data release are location data, field analyses, and laboratory analyses of several different sample media. For the sake of brevity, many field site observations have not been included in this volume; these data are, however, available on the magnetic tape. Appendices A through E describe the sample media and summarize the analytical results for each medium. The data have been subdivided by one of the Los Alamos National Laboratory sorting programs of Zinkl and others (1981a) into groups of stream-sediment, lake-sediment, stream-water, lake-water, and ground-water samples. For each group which contains a sufficient number of observations, statistical tables, tables of raw data, and 1:1,000,000 scale maps of pertinent elements have been included in this report. Also included are maps showing results of multivariate statistical analyses

Uma exposição acidental aos raios X de um difratômetro

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Valverde N.J. de L.

2000-01-01

Full Text Available As mãos de três trabalhadores foram irradiadas acidentalmente numa indústria em Camaçari, Estado da Bahia, Brasil. O diagnóstico clínico de radiodermite aguda foi possível, antes mesmo da confirmação dosimétrica da ocorrência, em virtude das manifestações cutâneas exibidas, precedidas por um eritema, e também pelas histórias ocupacionais. As avaliações das doses recebidas pelos acidentados, usando-se restituições com dosímetros termoluminescentes, tiveram boa correlação com as doses estimadas em função das manifestações clínicas. A causa imediata do acidente foi a má manutenção do equipamento que levou a sua janela posterior a ficar permanentemente aberta, porém foram fatores contributórios importantes a falta de informação dos empregados sobre os possíveis efeitos biológicos das radiações ionizantes e o não seguimento dos procedimentos operacionais corretos. A descrição deste acidente é importante, face ao grande número de difratômetros existentes em laboratórios, universidades, centros de pesquisa e indústrias. Tais aparelhos são considerados "virtualmente isentos de risco ocupacional", o que não é verdadeiro, como comprova a ocorrência que descrevemos. A evolução médica dos pacientes tem sido satisfatória, especialmente em virtude da baixa energia do feixe de raios X do difratômetro e, em conseqüência, da sua pequena penetração tissular.

Predição de Séries Temporais de parâmetros de Rede WCDMA – HSPA

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Tiago dos Santos Bezerra

2014-02-01

Full Text Available Em telecomunicações, com o crescimento da demanda de tráfego de dados nas redes de terceira geração (3G, as operadoras de telefonia móvel têm atentado para o direcionamento dos recursos em infraestrutura nos locais onde se identifica maior necessidade. O direcionamento desses investimentos tem o objetivo de manter a qualidade do serviço prestado, principalmente, em regiões urbanas densas. Neste trabalho, é realizada a predição de séries temporais em redes HSPA – WCDMA dos parâmetros: potência recebida (Rx Power, potência de código do sinal recebido (Received Signal Code Power – RSCP, relação energia por chip em função da interferência (Energy per chip/Interference – Ec/Io e taxa de transmissão (throughput na camada física. A coleta dos valores dos parâmetros foi realizada numa rede em pleno funcionamento através de um drive test na cidade de Natal – RN. O modelo utilizado para predição das séries temporais foi o Modelo de Alisamento Exponencial de Holt. O objetivo das predições das séries temporais é verificar para quais parâmetros da rede HSPA – WCDMA o modelo de Holt melhor se adequou.

Sex trafficking and health care in Metro Manila: identifying social determinants to inform an effective health system response.

Science.gov (United States)

Williams, Timothy P; Alpert, Elaine J; Ahn, Roy; Cafferty, Elizabeth; Konstantopoulos, Wendy Macias; Wolferstan, Nadya; Castor, Judith Palmer; McGahan, Anita M; Burke, Thomas F

2010-12-15

This social science case study examines the sex trafficking of women and girls in Metro Manila through a public health lens. Through key informant interviews with 51 health care and anti-trafficking stakeholders in Metro Manila, this study reports on observations about sex trafficking in Metro Manila that provide insight into understanding of risk factors for sex trafficking at multiple levels of the social environment: individual (for example, childhood abuse), socio-cultural (for example, gender inequality and a "culture of migration"), and macro (for example, profound poverty caused, inter alia, by environmental degradation disrupting traditional forms of labor). It describes how local health systems currently assist sex-trafficking victims, and provides a series of recommendations, ranging from prevention to policy, for how health care might play a larger role in promoting the health and human rights of this vulnerable population. Copyright © 2010 Williams, Alpert, Ahn, Cafferty, Konstantopoulos, Wolferstan, Castor, McGahan, and Burke. This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original author and source are credited.

Metro Optical Networks for Homeland Security

Science.gov (United States)

Bechtel, James H.

Metro optical networks provide an enticing opportunity for strengthening homeland security. Many existing and emerging fiber-optic networks can be adapted for enhanced security applications. Applications include airports, theme parks, sports venues, and border surveillance systems. Here real-time high-quality video and captured images can be collected, transported, processed, and stored for security applications. Video and data collection are important also at correctional facilities, courts, infrastructure (e.g., dams, bridges, railroads, reservoirs, power stations), and at military and other government locations. The scaling of DWDM-based networks allows vast amounts of data to be collected and transported including biometric features of individuals at security check points. Here applications will be discussed along with potential solutions and challenges. Examples of solutions to these problems are given. This includes a discussion of metropolitan aggregation platforms for voice, video, and data that are SONET compliant for use in SONET networks and the use of DWDM technology for scaling and transporting a variety of protocols. Element management software allows not only network status monitoring, but also provides optimized allocation of network resources through the use of optical switches or electrical cross connects.

Estudo exploratório da capacidade de pagamento da alocação de água em perímetros irrigados : o caso do Projeto Icó-Mandantes no Sistema Itaparica - PE

OpenAIRE

Mozart Benevides Cruz, José

2005-01-01

O estudo contextualiza a construção da barragem de Itaparica no leito do Rio São Francisco e os perímetros irrigados do Sistema Itaparica. Objetivou-se levantar o perfil dos agricultores que podem vir a arcar com os custos da alocação da água em perímetros irrigados, especificamente explorando o caso do perímetro Icó Mandantes. A pesquisa levantou os custos da CHESF no processo de alocação de água no perímetro, definiu o perfil do reassentado, identificou o perfil dos que têm...

Análisis de los parámetros del modelo NRTL para aminoácidos en mezclas de etanol-agua, empleando el enfoque de la solubilidad relativa

OpenAIRE

Rivera, Andrés; Espinosa, Armando

2016-01-01

Este artículo presenta un análisis alternativo al realizado por Ferreira y colaboradores, sobre datos de solubilidad de aminoácidos en soluciones etanol-agua, mediante la correlación de los parámetros del modelo NRTL. El examen inicial de los parámetros energéticos, para el sistema etanol-agua, mostró una alta correlación que permitió una representación por medio de un modelo modificado de un único parámetro y una regla de mezcla basada en la entalpia de vaporización de los componentes puros....

Estudo da influência do diâmetro do orifício piloto na resistência ao arrancamento do parafuso pedicular The influence of pilot hole diameter on screw oullout resistance

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José Roberto Benites Vendrame

2008-01-01

Full Text Available A influência do diâmetro do orifício piloto em relação ao diâmetro interno do parafuso na resistência ao arrancamento do parafuso pedicular foi o objetivo do estudo. Foram utilizados parafusos de 5, 6 e 7 mm do sistema USS de fixação vertebral, os quais foram inseridos nos corpos de prova de madeira, poliuretana e osso. O orifício piloto para a inserção do parafuso foi realizado com brocas de diâmetro inferior, igual e superior ao diâmetro interno do parafuso. Ensaios mecânicos de arrancamento foram realizados em máquina universal de teste. Nos corpos de prova de madeira, poliuretana e osso a realização do orifício piloto com brocas de diâmetro maior que o diâmetro interno do parafuso produziu diminuição da força máxima de arrancamento dos implantes nos ensaios de arrancamento, tendo sido observada diferença estatística. O diâmetro da perfuração do orifício piloto em relação ao diâmetro interno do parafuso exerce influência na resistência ao arrancamento do implante, tendo sido observado aumento da resistência ao arrancamento com a utilização de brocas de diâmetro menor que o diâmetro interno e redução da resistência ao arrancamento com a utilização de brocas com diâmetro maior que o diâmetro interno do parafuso.The influence of the diameter of the pilot hole compared to the inner diameter of the screw on the pull-out resistance of a pedicular screw was studied. 5-, 6-, and 7-mm USS system screws for vertebral fixation were inserted into wood, polyurethane and bone test bodies. The pilot hole for screw insertion was drilled with burrs of smaller, equal or wider diameter than the inner diameter of the screw. Mechanical pull-out assays were performed using a universal testing machine. In the wood, polyurethane and bone test bodies, a pilot hole drilled with burrs of a wider diameter than the inner diameter of the screw produced reduced maximum pull-out strength on the implants, with statistical

Urban policy engagement with social sustainability in metro Vancouver.

Science.gov (United States)

Holden, Meg

2012-01-01

This article presents an analysis of social sustainability in comparative theoretical context and as a challenge to the post-political interpretation of sustainability in policy practice at the urban and regional scales. Metro Vancouver provides a case study for improving our understanding of the meaning of social sustainability as a framework for social policy in that it is among the handful of cities around the world currently working to define and enact social sustainability in governance terms. Results of this participant research provide evidence that some cities are politically engaging alternative development pathways using the concept of social sustainability. For sustainable development to retain its promise as an alternative policy framework for cities, social sustainability must be at the forefront.

Barriers to calling 911 and learning and performing cardiopulmonary resuscitation for residents of primarily Latino, high-risk neighborhoods in Denver, Colorado.

Science.gov (United States)

Sasson, Comilla; Haukoos, Jason S; Ben-Youssef, Leila; Ramirez, Lorenzo; Bull, Sheana; Eigel, Brian; Magid, David J; Padilla, Ricardo

2015-05-01

Individuals in neighborhoods composed of minority and lower socioeconomic status populations are more likely to have an out-of-hospital cardiac arrest event, less likely to have bystander cardiopulmonary resuscitation (CPR) performed, and less likely to survive. Latino cardiac arrest victims are 30% less likely than whites to have bystander CPR performed. The goal of this study is to identify barriers and facilitators to calling 911, and learning and performing CPR in 5 low-income, Latino neighborhoods in Denver, CO. Six focus groups and 9 key informant interviews were conducted in Denver during the summer of 2012. Purposeful and snowball sampling, conducted by community liaisons, was used to recruit participants. Two reviewers analyzed the data to identify recurrent and unifying themes. A qualitative content analysis was used with a 5-stage iterative process to analyze each transcript. Six key barriers to calling 911 were identified: fear of becoming involved because of distrust of law enforcement, financial, immigration status, lack of recognition of cardiac arrest event, language, and violence. Seven cultural barriers were identified that may preclude performance of bystander CPR: age, sex, immigration status, language, racism, strangers, and fear of touching someone. Participants suggested that increasing availability of tailored education in Spanish, increasing the number of bilingual 911 dispatchers, and policy-level changes, including CPR as a requirement for graduation and strengthening Good Samaritan laws, may serve as potential facilitators in increasing the provision of bystander CPR. Distrust of law enforcement, language concerns, lack of recognition of cardiac arrest, and financial issues must be addressed when community-based CPR educational programs for Latinos are implemented. Copyright © 2014 American College of Emergency Physicians. Published by Elsevier Inc. All rights reserved.

ANALISIS KESULITAN ANAK TUNAGRAHITA DALAM MENYELESAIKAN SOAL OPERASI PENJUMLAHAN DI SEKOLAH LUAR BIASA (SLB HARAPAN IBU METRO

Directory of Open Access Journals (Sweden)

Shinta Saputri

2017-12-01

Abstract: The purpose of this study is to describe the learning difficulties faced by mental retardation students in solving the problem of addition operation. The research was conducted at Harapan Ibu Metro Special School (SLB in the even semester of the academic year 2016/2017. Research subjects consisted of 3 mental retardation students class III SDLB Harapan Ibu Metro who only experienced difficulty learning mathematics (diskalkulia. This research method is qualitative method, approach in research use approach descriptive. The technique of choosing the subject of this research is purposive sampling. Data analysis that refers to Miles and Huberman's opinion such as data reduction, data exposure, data analysis, and conclusion. The results showed that the difficulties faced by students tunagrahita as follows: (1 calculation, (2 difficulty showing numbers, dan (3 the use of erroreous processes in the summing.

Construcción de un calorímetro isoperibolico de inmersión de precisión

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Liliana Giraldo G.

2010-07-01

Full Text Available Se diseña y construye un calorímetro isoperibólico tipo submarino para la medida de calores de inmersión de sólidos en líquidos. La celda calorimétrica, de una capacidad aproximada de 85 mi, se fabrica en vidrio Pyrex y va sumergida dentro de una chaqueta submarina construida en bronce cromado. El conjunto se introduce dentro de un termostato de agua estabilizado a 25 ±0,001 °C. El sensor de temperatura está constituido por termisiores NTC colocados en un puente de Maier transpuesto y provisto de una Fuente de intensidad constante. La sensibilidad del termómetro es del orden de 5 * I O' °C/p V cuando la corriente de medida en el puente es del orden de 1 mA.

Evaluation of Strategies to Reducing Traction Energy Consumption of Metro Systems Using an Optimal Train Control Simulation Model

Directory of Open Access Journals (Sweden)

Shuai Su

2016-02-01

Full Text Available Increasing attention is being paid to the energy efficiency in metro systems to reduce the operational cost and to advocate the sustainability of railway systems. Classical research has studied the energy-efficient operational strategy and the energy-efficient system design separately to reduce the traction energy consumption. This paper aims to combine the operational strategies and the system design by analyzing how the infrastructure and vehicle parameters of metro systems influence the operational traction energy consumption. Firstly, a solution approach to the optimal train control model is introduced, which is used to design the Optimal Train Control Simulator(OTCS. Then, based on the OTCS, the performance of some important energy-efficient system design strategies is investigated to reduce the trains’ traction energy consumption, including reduction of the train mass, improvement of the kinematic resistance, the design of the energy-saving gradient, increasing the maximum traction and braking forces, introducing regenerative braking and timetable optimization. As for these energy-efficient strategies, the performances are finally evaluated using the OTCS with the practical operational data of the Beijing Yizhuang metro line. The proposed approach gives an example to quantitatively analyze the energy reduction of different strategies in the system design procedure, which may help the decision makers to have an overview of the energy-efficient performances and then to make decisions by balancing the costs and the benefits.

Tabla de vida y parámetros poblacionales de Lobesia botrana (Den. et Schiff. en condiciones de laboratorio

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María E. HERRERA

2017-01-01

Full Text Available Lobesia botrana Den. & Schiff. es plaga cuarentenaria para Argentina. Su reciente introducción en la provincia de Mendoza requiere el estudio de aspectos relacionados al ciclo de vida y parámetros poblacionales. El objetivo de este trabajo fue construir una tabla de vida horizontal, determinar los parámetros demográficos, la duración media de los períodos pre-reproductivo, reproductivo, post-reproductivo, la longevidad adulta, la fecundidad y fertilidad de las hembras bajo condiciones de laboratorio. Los parámetros demográficos de L. botrana obtenidos fueron: tasa intrínseca de crecimiento poblacional (rm de 0,137, tasa neta de reproducción (Ro de 66,82, tiempo generacional (T de 30,51, tasa de incremento finito (λ de 1,073 y el tiempo de duplicación (D de 9,76 días. La fecundidad bruta obtenida (Mx de 134,84 ± 15,68 huevos por hembra, la duración media en días de los períodos pre-reproductivo fue de 1 ± 0,81, reproductivo 6,25 ± 1,25 y post-reproductivo de 2 ± 0,68, la longevidad de la hembra 9,25 ± 1,67 y del macho 8,64 ± 0,83 días.

Reparación general o restablecimiento a kilómetro cero. ¿Cuál es la diferencia? // General repair or reestablishment to zero kilometer. Which is the difference?

Directory of Open Access Journals (Sweden)

J. Baste González

2003-09-01

Full Text Available En la actualidad se ha presentado con gran énfasis el uso de los agregados y motores que han pasado un proceso derestablecimiento a kilómetro cero. El empleo de los procesos tecnológicos de reparación general de agregados ha sidosiempre un método que en la variante individual es de gran aplicación en los talleres que reparan modelos distintos y enpequeñas cantidades. En la presente nota técnica se hace un análisis de las diferencias y semejanzas entre la reparacióngeneral individual y el restablecimiento a kilómetro cero.Palabras claves: Reparación general, kilómetro cero, reparación de motores.______________________________________________________________________________En la actualidad se ha presentado con gran énfasis el uso de los agregados y motores que han pasado un proceso derestablecimiento a kilómetro cero. El empleo de los procesos tecnológicos de reparación general de agregados ha sidosiempre un método que en la variante individual es de gran aplicación en los talleres que reparan modelos distintos y enpequeñas cantidades. En la presente nota técnica se hace un análisis de las diferencias y semejanzas entre la reparacióngeneral individual y el restablecimiento a kilómetro cero.Palabras claves: Reparación general, kilómetro cero, reparación de motores.

Respuesta láctica de atletas de élite ante un entrenamiento específico para la prueba de 3.000 metros lisos

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Dionisio Alonso Curiel

2016-01-01

Full Text Available El presente trabajo analiza el comportamiento láctico de cuatro atletas de élite (con marcas en 3.000 metros entre 7' 38'' y 8' 08'' ante un estímulo de entrenamiento interválico extensivo medio: 4 × (4 × 400 (102 %, Recuperación: 1' y 3' + 1 × 400 (máxima intensidad, y ante la prueba de competición de 3.000 metros lisos. El estudio evidencia, por una parte y mediante estadística descriptiva, cuál es la respuesta láctica de los atletas a estos estímulos y, por otro lado y mediante análisis inferencial no paramétrico, la idoneidad de este entrenamiento a la hora de mejorar la resistencia láctica en la prueba de 3.000 metros lisos.

Evidence for the Implementation of the Early Start Denver Model for Young Children With Autism Spectrum Disorder.

Science.gov (United States)

Ryberg, Kayce H

2015-01-01

The Early Start Denver Model (ESDM) is a manualized comprehensive therapy for toddlers with autism spectrum disorder. It emphasizes interpersonal engagement through synchrony, rhythms, and reciprocity to decrease symptom severity and accelerate cognitive, social-emotional, and language development. To systematically review evidence regarding the use of the ESDM as an intervention for young children with autism spectrum disorder. PubMed, Scopus, Web of Science, Embase, and CINAHL were searched from 2010-2015 using predetermined inclusion criteria. Study methodology, participant characteristics, and outcomes were evaluated and quality of evidence was assigned. Eight articles met inclusion criteria and consisted of two randomized controlled trials, four controlled trials, and two observational cohort studies. Evidence quality ranged from low to high. The ESDM is an effective intervention that improves cognition, language, and adaptive behavior. ESDM strategies delivered in community group settings and in the home by parents have potential to be efficacious and feasible. © The Author(s) 2015.

New Whole-House Solutions Case Study: New Town Builders' Power of Zero Energy Center - Denver, Colorado

Energy Technology Data Exchange (ETDEWEB)

None

2014-10-01

New Town Builders, a builder of energy efficient homes in Denver, Colorado, offers a zero energy option for all the homes it builds. To attract a wide range of potential homebuyers to its energy efficient homes, New Town Builders created a "Power of Zero Energy Center" linked to its model home in the Stapleton community. This case study presents New Town Builders' marketing approach, which is targeted to appeal to homebuyers' emotions rather than overwhelming homebuyers with scientific details about the technology. The exhibits in the Power of Zero Energy Center focus on reduced energy expenses for the homeowner, improved occupant comfort, the reputation of the builder, and the lack of sacrificing the homebuyers' desired design features to achieve zero net energy in the home. This case study also contains customer and realtor testimonials related to the effectiveness of the Center in influencing homebuyers to purchase a zero energy home.

Exploring the Factors that Impact on Transit Use through an Ordered Probit Model: the Case of Metro of Madrid

Energy Technology Data Exchange (ETDEWEB)

Eboli, L.; Forciniti, C.; Mazzulla, G.; Calvo, F.

2016-07-01

The configuration of urban areas is the result of a cyclic relationship between land use and transportation system: the changes in transportation system arrangements influence the localisation of residence and economic activities, as well as the changes in land use affect transportation system characteristics. In this context, by operating on land use, travel demand can be shift from the individual transportation modes to transit systems. In the literature, many conceptual models were proposed to describe the complex relationship between land use and travel behaviour. In addition to spatial variation, the study of travel demand shows the categorical variation of variables. This work aims to analyse the influence of the categorical variation of variables impacting on transit use. An ordered probit model is proposed for evaluating how transit use depends on variables related to socio-economic characteristics of population, territorial features, accessibility, and transportation system. The study case is Madrid metro network (Spain). The results show a strong influence of characteristics of population and land use variables on daily trips made using metro system and highlighted the aspects that mainly impact on the choice to travel by metro, providing useful suggestions for shifting people from individual transportation mode to transit systems. (Author)

Understanding household energy consumption patterns: When 'West Is Best' in Metro Manila

Energy Technology Data Exchange (ETDEWEB)

Sahakian, Marlyne D., E-mail: marlyne.sahakian@graduateinstitute.c [Graduate Institute of International and Development Studies, Development Studies, 20 rue Rothschild, 1207 Geneva (Switzerland)

2011-02-15

This paper addresses the topic of energy and development through a multi-disciplinary and systemic approach that combines environmental considerations with a social understanding of consumption. The focus is on electricity usage in the home and specifically lighting and cooling. Set in the urban mega-polis of Metro Manila, the Philippines, energy consumption is first placed in its biophysical perspective: the energy sources and electricity grid are presented, in relation to the Philippines as well as the region. The research findings then explore the social and cultural drivers behind household electricity consumption, revealing in several examples the strong influence of globalization-understood here as the flow of people, remittances, images and ideas. Policy recommendations are provided, based on the research results, with concluding remarks relevant to other similar contexts. - Research highlights: {yields}Metro Manila household electricity consumption is environmentally significant. {yields}The meaning given to electricity services varies by socio-economic group. {yields}Structural conditions, such as building type, can lock-in energy consumption. {yields}Global flows-people, ideas, remittances-influence local consumption patterns. {yields}Social networks, rather than the individual consumer, can influence change.

Determinación de propiedades físicas y parámetros de transporte a colas auríferas de mina El Limón

Directory of Open Access Journals (Sweden)

J. Ramírez

2006-01-01

Full Text Available Los parámetros de transporte de colas mineras y otras propiedades físicas, tales como permeabilidad intrínseca, distribución de tamaño de partículas, porosidad y densidad fueron determinados experimentalmente. Se realizaron experimentos de infiltración en columnas de laboratorio con el fin de determinar; la conductividad hidráulica, las propiedades capilares y estudiar el comportamiento hidrodinámico de las colas auríferas. También se hizo uso de un modelo matemático para simular la infiltración isotérmica unidimensional y ajustar los perfiles experimentales, con el propósito de determinar los parámetros de transporte que describen el proceso de infiltración. Aunque los experimentos se realizaron con diferentes grados de compactación, se obtuvieron parámetros con una coherencia razonable para describir la conductividad hidráulica y las propiedades capilares de las colas por este método. Estos parámetros fueron usados en un modelo simple para simular el lavado con agua del cianuro contenido en las colas auríferas.

Investigation on thermal environment improvement by waste heat recovery in the underground station in Qingdao metro

Science.gov (United States)

Liu, Jianwei; Liu, Jiaquan; Wang, Fengyin; Wang, Cuiping

2018-03-01

The thermal environment parameters, like the temperature and air velocity, are measured to investigate the heat comfort status of metro staff working area in winter in Qingdao. The temperature is affected obviously by the piston wind from the train and waiting hall in the lower Hall, and the temperature is not satisfied with the least heat comfort temperature of 16 °C. At the same time, the heat produced by the electrical and control equipments is brought by the cooling air to atmosphere for the equipment safety. Utilizing the water-circulating heat pump, it is feasible to transfer the emission heat to the staff working area to improve the thermal environment. Analyzed the feasibility from the technique and economy when using the heat pump, the water-circulating heat pump could be the best way to realize the waste heat recovery and to help the heat comfort of staff working area in winter in the underground metro station in north China.

URBANISASI, MODERNISASI DAN PERUBAHAN SOSIAL PADA KOMUNITAS LOKAL PERKOTAAN: KASUS KOTA BARU METRO TANJUNG BUNGA, MAKASSAR

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Batara Surya

2016-01-01

Full Text Available This study aims to analyze the spatial physical changes in working as a determinant of social formation changes, processes of social interaction and social adaptation between migrants and local communities in new social formations and consequences of changes in social structure, social processes and cultural patterns of local communities in the Metro Tanjung Bunga area interest. Spatial physical changes take very quickly encourage the acceleration of development and modernization in the Metro Tanjung Bunga area. Working differentiation push social interaction processes between local communities and settlers in new social formations and within the framework to build social relationships and social relations that are integrative towards the fulfillment of basic needs and efforts to maintain the existence, so conditions of social change on local communities. The consequences of social change on local communities is changing of stratification system from simple stratification then evolved toward sharpening of economic stratification and cultural change from traditional agrarian to urban industrial.

Tratamiento magnético sobre parámetros físicos-químicos de muestras de petróleo

OpenAIRE

Campos-Sofia, Melek; León-Cañet, Maida; Silveira-Font, Yadira; Moro Martínez, Alina; Falcón-Hernández, José

2015-01-01

En este trabajo se realizó un estudio de los parámetros físico-químicos a muestras de crudo PCNm-1400 y M-30, antes y después del tratamiento magnético; con el objetivo de evaluar el efecto de un campo magnético estático sobre dichos parámetros. Al pasar la muestra de crudo M-30 por un acondicionador magnético de 0,4550 ± 0,009 T, se logra separar hasta un 52,8 % del agua presente en la muestra. No hay evidencias de la influencia del tratamiento magnético en la viscosidad ni en el comportamie...

Novas determinações dos parâmetros atmosféricos das estrelas anãs brancas DA

Science.gov (United States)

Giovannini, O.; Costa, A. F. M.; Kepler, S. O.

2003-08-01

Nós temos selecionado uma amostra de estrelas anãs brancas DA (atmosfera de hidrogênio) a partir dos índices de Strömgren cujos valores estão próximos a região de instabilidade das estrelas anãs brancas DA variáveis, as chamadas estrelas DAV ou ZZ Ceti. O objetivo é determinar os parâmetros fundamentais (temperatura efetiva, Teff, aceleração da gravidade, log g, e massa) destas estrelas para verificar quais os parâmetros estelares estão envolvidos com o mecanismo de pulsação das estrelas DAV. Nós obtemos, até agora, mais de 120 espectros óticos de estrelas DA. Entre as estrelas selecionadas há 20 estrelas variáveis (DAV). Assim, podemos verificar se existem ou não estrelas não variáveis dentro da faixa de instabilidade das estrelas ZZ Ceti. Neste trabalho nós apresentamos a determinação dos parâmetros atmosféricos (temperatura efetiva, Teff, e aceleração da gravidade, log g) das estrelas anãs brancas DA usando os novos modelos de atmosfera ML2/a = 0.6. Estes modelos têm sido utilizados recentemente por fornecerem uma excelente consistência interna na determinação das temperaturas nas regiões do ultra-violeta e ótico. Os parâmetros atmosféricos são determinados espectroscopicamente através da comparação do fluxo de energia das linhas de Balmer (Hb à H9) entre os espectros observados e sintéticos (gerados pelos modelos de atmosfera). As temperaturas obtidas com os novos modelos são, em geral, menores (~ 1000 K menos) que as temperaturas determinadas anteriormente, com modelos ML1. Os valores de log g não mudaram significativamente (menos de 10%). A faixa de instabilidade das DAVs está entre 11000 e 13000 K, consistente com dados de outros autores.

High optical label switching add-drop multiplexer nodes with nanoseconds latency for 5G metro/access networks

NARCIS (Netherlands)

Calabretta, N.; Miao, W.; De Waardt, H.

2016-01-01

We present a novel optical add-drop multiplexer for next-generation metro/access networks by exploiting optical label switching technology. Experimental results of a ring network show nanoseconds add/drop operation including multicasting and power equalization of 50Gb/s data.

VARIACIÓN DE PARÁMETROS FISICOQUIMICOS DURANTE UN PROCESO DE COMPOSTAJE

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Diana María Farias Camero

2010-08-01

Full Text Available Se llevaron a cabo dos procesos de compostaje a partir de residuos lignocelulósicos de rosas durante 165 días aproximadamente. En uno de los procesos la descomposición del material fue realizada sólo por microorganismos (compostaje directo y en el otro fuera de los microorganismos se adicionaron lombrices de tierra Eisenia foetida (compostaje indirecto. El compostaje directo fue realizado en un sistema de compostación denominado "camas" y el proceso indirecto se desarrolló en la etapa inicial en un sistema de "panelas" siendo trasladado posteriormente a una cama. Los dos procesos se manejaron con adiciones de cal, NH4NO3 (20%N y microorganismos. Se tomaron muestras periódicas en diferentes lugares de las pilas y se midió semanalmente la temperatura. En cada una de las muestras se determinaron los siguientes parámetros fisicoquímicos: % humedad, color, pH en relaciones muestra: agua 1:5 y 1:10, cenizas, materia orgánica. Cíe libre de cenizas, carbono, nitrógeno y relación C/N. En el extracto acuoso se determinaron el contenido de carbono orgánico total y nitrógeno, la relación C/N y el porcentaje de hidrosolubles y se hizo un ensayo de germinación en el que se calculó el porcentaje de semillas de berro (Lepidium sativum que germinaron en el extracto. La variación de los parámetros en cada uno de los procesos permifió establecer que los mayores cambios en el material se llevan a cabo durante las etapas iniciales del proceso (fases termófila y mesófila, siendo la presencia de microorganismos el factor limitante de la dinámica del proceso; así mismo la adición de lombrices de tierra no aceleró la mineralización de la materia orgánica. A nivel metodológico se estableció que la determinación del color no es un parámetro efectivo para evaluar el estado de madurez del compost y que, medidas de la temperatura y el porcentaje de germinación pueden realizarse rutinariamente para determinar el avance del proceso. Para

Diseño e Implementación de un Sistema de Seguimiento de Parámetros Ambientales en Plantaciones de Cafe

OpenAIRE

Abad Alameda, Ana Sofía

2016-01-01

Este trabajo plantea el diseño e implementación de un sistema de medición y monitoreo remoto basado, principalmente, en la instalación y operación de una estación meteorológica automática, para el seguimiento remoto de las condiciones ambientales bajo las cuales crece una plantación de café. La estación está dotada con los sensores correspondientes, para medir los parámetros del ambiente (Temperatura, Humedad Relativa, Radiación Solar y Lluvia), parámetros del suelo (Temperatura y Humedad del...

Book Review of 'The Metropolitan Revolution, How Cities and Metros are fixing our Broken Policies and Fragile Economy'

OpenAIRE

Fitzpatrick, Miriam

2014-01-01

Book Reviews for Architecture Ireland of 'The Metropolitan Revolution, How Cities and Metros are fixing our Broken Policies and Fragile Economy', by Bruce Katz and Jennifer Bradley, Published by Brookings Institution Press, 288 pages.

EFFORTS TO INCREASE THE ABILITY TO CHOOSE A SCHOOL GROUP COUNSELING SERVICES THROUGH ADVANCED CLASS IX SMP NEGERI 2 METRO STATE IN 2013

Directory of Open Access Journals (Sweden)

Rohima Rohima

2016-06-01

Full Text Available SMP Negeri 2 Metro In reality, there are many confused students choose a major program of advanced studies, especially for junior high school students. It is necessary to learn / coaching to the students to be able to choose the school accordingly. Researchers conduct action research through the Guidance Counseling Group in Class IX student of SMP Negeri 2 Metro. The experiment was conducted using two cycles. Recapitulation of data Selecting a program majoring in the process of learning / coaching from the first cycle to the second cycle, there is an increase of 57.06% to 86.35%. The results of the data summary portfolio also increased from 33.32% to 83.33%, and the recapitulation of learning outcomes of students who otherwise Completed Pass also risen from 54.54% increase to 96.96%. Thus concluded indicator of success is to reach the target / as are 95% or more. Keywords: guidance group, select schools, smp negeri 2 metro

Desenvolvimento de um penetrômetro manual eletrônico = Development of an electronic manual penetrometer

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Rafael Cesar Tieppo

2011-01-01

Full Text Available O excesso de tráfego de máquinas pode causar compactação prejudicial ao desenvolvimento da cultura. Uma das maneiras de se obter um indicativo de compactação é a resistência do solo à penetração (RSP. Assim, desenvolveu-se um penetrômetro eletrônico, seguindo a norma S313.2 ASAE (1998, tendo a haste 0,0095 m de diâmetro e o cone de 30° com 0,01283 m de diâmetro na base. Para o desenvolvimento do penetrômetro, utilizou-se um sistema para aquisição de dados, sensor de distância, sensor de força e barras circulares de aço inox para confecção da haste e do cone. O aparelho armazena os dados coletados a campo em uma frequência de 4 Hz, sendo estes posteriormente transferidos para um microcomputador, via interface RS232. Por meio de uma planilha eletrônica, os dados podem ser processados de acordo com a necessidade do usuário. Os sensores apresentaram confiabilidade em sua utilização, os arquivos de dados gerados pelo aparelhoproporcionaram conforto e confiança no processamento de dados e os dados puderam ser reorganizados conforme a necessidade do usuário para, assim, evitar o erro de leitura pelo processo visual.Excess machine traffic can cause compaction that is harmful for crop growth. One way to obtain evidence of soil compaction is to check the mechanical resistance of soil. Thus, an electronic penetrometer was developed according to ASAE (1998 Standard S313.2, featuring a 9.53mm wide diving shaft and a 30° circular stainless steel cone with a 12.83 mm base diameter. The penetrometer was outfitted with a data acquisition system, distance and force sensors, and stainless steel circular bars to construct the diving shaft and cone. The device stores field data collected at a frequency of 4 Hz, which are later transferred onto a microcomputer via a RS232 interface. The collected data can be processed using an electronic spreadsheet according to user needs. The sensors proved reliable during use, and the data files

Um Termômetro para as Macro-Prudenciais

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Fabio Kanczuk

2013-12-01

Full Text Available Desenvolvemos um modelo com fricções no crédito tanto para firmas como famílias. Crédito às firmas é tratado como nos modelos de acelerador financeiro (e.g. Bernanke e Gilchrist (1999. Os juros sobre os recursos emprestados às famílias dependem de seu endividamento, como em Curdia e Woodford (2010. O modelo é estimado para o Brasil, utilizado para estudar os episódios de desaceleração, e para a extração dos prêmios de financiamento (destilados a partir de dados não financeiros, os quais são comparados com informações sobre crédito às pessoas físicas e jurídicas. Dessa forma, o obtém-se um termômetro para mensurar como medidas prudenciais sobre o crédito afetam atividade e inflação.

Análisis del rendimiento y parámetros de una tuneladora

OpenAIRE

Requena Molano, Miguel Ángel

2011-01-01

A lo largo de este trabajo se han estudiado diferentes parámetros e incidencias que han ocasionado paradas durante la excavación de un túnel con una tuneladora del tipo TBM, con el fin de que pueda ser de utilidad en futuras obras similares. Este proyecto se ha realizado con el túnel una vez acabado en base a los partes diarios realizados por el personal de la tuneladora, donde quedan registrados los anillos colocados, el material excavado y las paradas ocasionadas por las diferentes...

Piezocomposites metal-cerámica como elementos activos en acelerómetros

OpenAIRE

Ochoa, Pilar; Villegas, Marina; Pons Rovira, José Luis; Fernández Lozano, José Francisco; Bengochea, M. A.

2002-01-01

[ES] Los materiales cerámicos piezoeléctricos presentan un número importante y en continuo aumento de aplicaciones. Entre éstas su utilización como elementos activos en el diseño de acelerómetros posibilita el control de vibraciones en la industria del transporte, aerospacial, robótica e ingeniería civil entre otras. Entre los múltiples diseños como material compuesto destaca, gracias a sus elevados coeficientes de carga efectivos, el denominado tipo címbalo. En este trabajo se compr...

Correlación entre algunos parámetros climáticos y la hora del día en Heredia, Costa Rica.

Directory of Open Access Journals (Sweden)

Jaime Wright

2016-03-01

Full Text Available Se midieron las radiaciones solar global, infrarroja y ultravioleta, la presión atmosférica, la temperatura del aire, la humedad relativa y la velocidad del viento en Heredia, Costa Rica (latitud 10° 02’ N, longitud 84° 09’ W, altitud 1050 m durante el período de enero 1996 a diciembre 1997, y se correlacionaron con el tiempo local. Este trabajo contribuirá al desarrollo de un modelo para derivar parámetros climáticos a partir de la hora del día. Correlaciones entre parámetros climáticos y el mes del año han sido desarrolladas en investigaciones anteriores. Análisis de regresión entre valores horarios medios mensuales de los parámetros climáticos y el tiempo local mostraron una relación cúbica como mejor método de ajuste. Las observaciones experimentales presentadas en este estudio son consistentes con los esperados procesos físicos conocidos.

Ring aggregation pattern of metro passenger trips: A study using smart card data

Science.gov (United States)

Wang, Ziyang; Hu, Yuxin; Zhu, Peng; Qin, Yong; Jia, Limin

2018-02-01

With the widespread implementation of smart cards and with more travel details being recorded, travel patterns can be studied more precisely and deeply. Although considerable attention has been paid to travel patterns, the relationship between travel patterns and the functional structure of a city is yet to be well understood. In this research, we study this relationship by analysing metro passenger trip data (in Beijing and Shenzhen in China and London in the United Kingdom), and we present two unprecedented findings. First, through averaging, a linear relationship is found to exist between individual travel distance and the distance between the origin and the city centre. The underlying mechanism is a travel pattern we call "ring aggregation", i.e., the daily movement of city passengers is aggregated into a ring (with approximately equal distances to the city centre). Then, for commuting trips, the daily travel pattern can be regarded as switching between the outer residential ring and the inner work ring. Second, this linear relationship and the ring aggregation pattern seem to be exclusive characteristics of metro systems (and may also fit other moderate- and long-distance transportation modes) but do not apply to short-distance transportation modes, such as bicycles and taxis. This finding implies that the ring aggregation pattern is a product of the relationship between travel patterns and the city functional structure at a large scope.

Modelling the potential for bicycle in access trips to bus, train and metro in Rio de Janeiro

NARCIS (Netherlands)

Carvalho de Souza, Flavia; La Paix Puello, Lissy Cesarina; Brussel, M.J.G.; Orrico, R.; van Maarseveen, M.F.A.M.

2017-01-01

Most studies that address the integration of cycling and public transport (PT) focus on developed countries and deal with multi-modal bicycle-train trips. Little is known about the integration of cycling and other main modes such as bus and metro, especially in developing countries, where entirely

Intervalo hídrico ótimo utilizado como indicador da qualidade física em perímetro irrigado.

Directory of Open Access Journals (Sweden)

Thiago Lima da Silva

2016-12-01

Full Text Available Um dos principais parâmetros para se avaliar as condições físicas do solo é o Intervalo Hídrico Ótimo (IHO que tem como conceito a incorporação de uma faixa de quantidade de água, as limitações ao desenvolvimento das plantas por aeração, água disponível e resistência do solo à penetração das raízes. O objetivo neste trabalho foi avaliar o intervalo hídrico ótimo de um Latossolo amarelo distrófico com diferentes usos e manejos no perímetro irrigado Piauí, município de Lagarto-SE. Foram selecionados 4 (quatro  diferentes tipos de usos do solo que tivessem diferentes manejos agrícolas no perímetro irrigado Piauí e três profundidades 0-0,15 m; 0,15-0,30 m e 0,30-0,45 m avaliadas nesses sistemas. Os usos distintos consistiram em: a área sob cultivo de pimenteira malagueta (Capsicum frutensens L; b área sob cultivo de maracujazeiro amarelo (Passiflora edulis sims; c área sob cultivo de maracujazeiro em consórcio com pimenteira malagueta; d área sob pastagem (Brachiaria decumbens. O intervalo hídrico ótimo foi determinado por meio da curva de resistência à penetração e da curva de retenção da água no solo e mostrou-se importante indicador para avaliação da qualidade física do solo avaliado sob diferentes usos no perímetro irrigado Piauí, onde o manejo empregado no solo afetou a qualidade física deste, já que, em profundidades maiores todos os usos apresentam restrições ao desenvolvimento do sistema radicular, sendo que, a pastagem e o consórcio maracujá e a pimenteira apresentam essa restrição já na profundidade superficial 0-0-15m.

Software Defined Networking for Next Generation Converged Metro-Access Networks

Science.gov (United States)

Ruffini, M.; Slyne, F.; Bluemm, C.; Kitsuwan, N.; McGettrick, S.

2015-12-01

While the concept of Software Defined Networking (SDN) has seen a rapid deployment within the data center community, its adoption in telecommunications network has progressed slowly, although the concept has been swiftly adopted by all major telecoms vendors. This paper presents a control plane architecture for SDN-driven converged metro-access networks, developed through the DISCUS European FP7 project. The SDN-based controller architecture was developed in a testbed implementation targeting two main scenarios: fast feeder fiber protection over dual-homed Passive Optical Networks (PONs) and dynamic service provisioning over a multi-wavelength PON. Implementation details and results of the experiment carried out over the second scenario are reported in the paper, showing the potential of SDN in providing assured on-demand services to end-users.

Pré-melhoramento do camucamuzeiro: estudo de parâmetros genéticos e dissimilaridade

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Walnice Maria Oliveira do Nascimento

2014-08-01

Full Text Available O camucamuzeiro pertence à família Myrtaceae e é espécie em processo de domesticação, encontrada na forma extrativa, a partir de plantas crescendo naturalmente nas margens dos rios e lagos, ou cultivadas em pequenas áreas de terra firme. As estimativas e a compreensão dos parâmetros genéticos desta espécie são importantes para o conhecimento da estrutura genética das populações e para a inferência da diversidade genética presente, além de proporcionar subsídios para predizer os ganhos genéticos e o possível sucesso no programa de melhoramento dessa cultura. Neste sentido, o objetivo deste trabalho foi estimar parâmetros genéticos e a dissimilaridade genética, em acessos existentes no Banco Ativo de Germoplasma de camucamuzeiro, da Embrapa Amazônia Oriental. Para o estudo, foram analisados 46 progênies, colhidos 40 frutos por planta matriz em completo estádio de maturação (frutos com epicarpo totalmente roxo, sendo avaliados sete caracteres morfoagronômicos: peso de fruto (g, PFR, comprimento de fruto (cm, CFR, diâmetro de fruto (cm, DFR, peso da casca (g, PCS, espessura da casca (cm, ECS, número de sementes (n, NSE, peso de sementes (g, PSE. Por meio do Programa Genes, estimaram-se os componentes de variância, herdabilidade e a variabilidade. A importância relativa de caracteres e dissimilaridades entre as progênies, bem como as correlações genéticas entres os caracteres avaliados também foram estudadas. Verificou-se que há dissimilaridade entre os acessos do BAG de camucamuzeiro e que, por causa das correlações significativas entre as variáveis, podem-se adotar métodos de seleção indireta como ferramenta auxiliar no processo de domesticação e melhoramento desta espécie.

Determinação do parâmetro de suavização ótimo na regressão geograficamente ponderada

OpenAIRE

Mendes, Felipe Franco

2017-01-01

Os modelos da Regressão Geograficamente Ponderada são muito sensíveis à escolha do parâmetro de suavização. E essa escolha é tradicionalmente feita através do algoritmo Otimização por Seção Áurea, ou do inglês Golden Section Search. Esse algoritmo é aplicado com uma função que quantifica a eficiência do modelo, procurando, portanto, o parâmetro ótimo que resulta no melhor modelo. Neste trabalho, estudou-se o comportamento da função de validação cruzada e verificou-se que ela não é estritament...

Automatização de um dinamômetro hidráulico para ensaios de motores de combustão interna

OpenAIRE

Albuquerque, Luiz Eduardo Nunes de

2016-01-01

Esta dissertação apresenta a automatização de um dinamômetro hidráulico instalado na cabine de testes de motores de combustão interna do laboratório de máquinas térmicas da Universidade de Brasília. O dinamômetro é operado por meio de um controlador analógico que comanda o freio do equipamento pela variação da pressão interna gerada pelo vórtice da água no circuito hidráulico. A pressão interna, por sua vez, é controlada por uma válvula borboleta acoplada a um servo motor de corrente contínua...

Determinação de parâmetros reológicos de argamassas e concreto através de técnicas alternativas

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M. P. Barbosa

Full Text Available As pastas, juntamente com as argamassas e os concretos, são suspensões reativas, cuja consistência é modificada ao longo do tempo, sobretudo pela atuação do cimento. Eles apresentam um comportamento de fluido não-newtoniano e exibem uma viscosidade que varia com a tensão aplicada. Com base em técnicas alternativas, foram determinados, analisados e comparados o comportamento e as propriedades reológicas de argamassas e de concretos a partir de medidas experimentais de abatimento, cálculo da tensão crítica ou de escoamento, com e sem adição de aditivos, assim como valores de viscosidade. As técnicas alternativas utilizadas foram o cilindro de Pashias e o ensaio de abatimento de tronco de cone modificado para as argamassas e os concretos, respectivamente. Os valores de parâmetros reométricos obtidos a partir das técnicas alternativas para as argamassas e concretos testados foram comparados com resultados de ensaios realizados em reômetro, apontando boa aceitação das técnicas alternativas e menos onerosas na determinação de parâmetros reológicos de materiais à base cimentícia. Pôde-se inferir ainda que o modelo reológico binghamiano, com dois parâmetros reológicos (tensão crítica ou de escoamento e viscosidade, mostrou-se como condição necessária e suficiente para representar o comportamento das misturas estudadas neste trabalho.

Optimización de parámetros de deposición de capas delgadas de cobre utilizando diseño de experimentos

OpenAIRE

Shirkavand, Nazanin

2013-01-01

Una investigación, denominada Optimización de parámetros de deposición de capas delgadas de cobre utilizando diseño de experimentos y desarrollada en el Centro de Investigación en Ciencia e Ingeniería de Materiales (CICIMA), de la Universidad de Costa Rica, tuvo como objetivo poder encontrar la relación de los parámetros del magnetrón (presión, potencia y tiempo) con el grosor de formación de las capas delgadas de cobre. Se utilizó el método estadístico de 2K (donde K es el número de parámetr...

Aplicaci??n de los SIG para determinar la variabilidad espacial de par??metros de calidad del mosto de uva. Experiencia en la D.O. Bierzo

OpenAIRE

Rodr??guez P??rez, Jos?? Ram??n, 1968-; ??lvarez Taboada, Mar??a Flor; Peters, Stefan

2008-01-01

Los estudios tradicionales sobre par??metros de calidad del mosto abarcan grandes bloques de vi??edo y se centran en determinar la evoluci??n temporal de estas variables para decidir la ??poca de vendimia m??s adecuada. En este trabajo se propone una metodolog??a para el an??lisis de la variabilidad espacial de los par??metros del mosto y se exponen los resultados obtenidos en la DO Bierzo, para cuatro variedades diferentes de vid. Los resultados permiten identificar zonas homogeneas en cuant...

A perisynaptic ménage à trois between Dlg, DLin-7, and Metro controls proper organization of Drosophila synaptic junctions.

Science.gov (United States)

Bachmann, André; Kobler, Oliver; Kittel, Robert J; Wichmann, Carolin; Sierralta, Jimena; Sigrist, Stephan J; Gundelfinger, Eckart D; Knust, Elisabeth; Thomas, Ulrich

2010-04-28

Structural plasticity of synaptic junctions is a prerequisite to achieve and modulate connectivity within nervous systems, e.g., during learning and memory formation. It demands adequate backup systems that allow remodeling while retaining sufficient stability to prevent unwanted synaptic disintegration. The strength of submembranous scaffold complexes, which are fundamental to the architecture of synaptic junctions, likely constitutes a crucial determinant of synaptic stability. Postsynaptic density protein-95 (PSD-95)/ Discs-large (Dlg)-like membrane-associated guanylate kinases (DLG-MAGUKs) are principal scaffold proteins at both vertebrate and invertebrate synapses. At Drosophila larval glutamatergic neuromuscular junctions (NMJs) DlgA and DlgS97 exert pleiotropic functions, probably reflecting a few known and a number of yet-unknown binding partners. In this study we have identified Metro, a novel p55/MPP-like Drosophila MAGUK as a major binding partner of perisynaptic DlgS97 at larval NMJs. Based on homotypic LIN-2,-7 (L27) domain interactions, Metro stabilizes junctional DlgS97 in a complex with the highly conserved adaptor protein DLin-7. In a remarkably interdependent manner, Metro and DLin-7 act downstream of DlgS97 to control NMJ expansion and proper establishment of synaptic boutons. Using quantitative 3D-imaging we further demonstrate that the complex controls the size of postsynaptic glutamate receptor fields. Our findings accentuate the importance of perisynaptic scaffold complexes for synaptic stabilization and organization.

Produção de biscoitos extrusados de polvilho azedo com fibras: efeito de parâmetros operacionais sobre as propriedades físicas

OpenAIRE

Camargo,Karina Fernandes de; Leonel,Magali; Mischan,Martha Maria

2008-01-01

Neste trabalho buscou-se avaliar o efeito de parâmetros operacionais do processo de extrusão no desenvolvimento de biscoitos de polvilho com fibras, utilizando como matérias-primas o polvilho azedo e o farelo de mandioca. O processamento foi realizado em um extrusor mono-rosca, sendo considerados parâmetros variáveis: temperatura na 3ª zona de extrusão, umidade e porcentagem de fibras na mistura. Para analisar o efeito combinado das variáveis independentes nas características tecnológicas dos...

Implementasi Program Pembinaan Napi di Lapas Kelas II B Metro

Directory of Open Access Journals (Sweden)

Narsidi Narsidi

2004-01-01

Full Text Available Penelitian ini bertujuan untuk mengungkap kesiapan sarana fisik dan nonfisik, jenis program pembinaan yang dilaksanakan, proses pelaksanaan program pembinaan, hasil, dan kemanfaatan program bagi narapidana di Lapas. Penelitian ini adalah jenis penelitian studi kasus dengan pendekatan kualitatif fenomenologis naturalistik. Pengumpulan data dilakukan melalui teknik observasi dan wawancara Teknik analisis data menggunakan model analisis interaktif dari Miles dan Huberman (1984. Hasil analisis data menunjukkan, bahwa Lapas Kelas II B Metro secara nonfisik masih memiliki kekurangan, baik kuantitas maupun kualitas. Proses pembinaan narapidana di Lapas belum banyak mengadopsi teori pembelajaran orang dewasa sehingga model pembelajarannya masih cenderung menggunakan model pembelajaran anak-anak (paedagogik. Secara umum dapat dikatakan bahwa pembinaan yang dilakukan Lapas dirasakan kemanfaatannya oleh narapidana.Namun, pembinaan yang dilakukan belum dapat memenuhi minat dan kebutuhan narapidana. Kata kunci: implementasi, program, pembinaan, narapidana.

THE EFFECTIVENESS OF USING SCRABBLE AND BINGO GAME TECHNIQUE TOWARD STUDENTS’ VOCABULARY MASTERY AT THE TENTH GRADE OF SMA N 2 METRO ACADEMIC YEAR 2013/2014

Directory of Open Access Journals (Sweden)

Ahmad Rosidi -

2017-02-01

Full Text Available Abstract: Vocabulary mastery is the activity to enrich the vocabulary, they master the vocabulary in order to be able to master four language skills. The problem formulation of this research are; (1  Is there any difference influence of using Scrabble and Bingo Game Technique toward Students’ Vocabulary Mastery at The Tenth Grade of SMA N 2 Metro Academic Year 2013/3014? (2 Which one is more effective between Scrabble and Bingo Game Technique toward Students’ Vocabulary Mastery at The Tenth Grade of SMA N 2 Metro Academic Year 2013/3014 ?, The object of this research are; (1 To know whether there is any difference Influence of using Scrabble and Bingo Game Technique toward Students’ Vocabulary Mastery at The Tenth Grade of SMA N 2 Metro Academic Year 2013/3014, (2 To know which one is more effective between Scrabble and Bingo Game Technique toward Students’ Vocabulary Mastery at The Tenth Grade of SMA N 2 Metro Academic Year 2013/3014. This research is Quantitative research. Research design that will be used in this research is true experimental design (pretest posttest control group design.. The population of this research is the students’ of SMA N 2 Metro Academic Year 2013/2014 that consist of 660 students. The sample is 60 students. As the sample, 30 as experimental class and 30 as  control class. In taking sample, the researcher used the cluster stratified random sampling. The data collecting tehniques the researcher used try-out, pre-test, treatment and post-test. The data analyzing tehniques, the researcher used normality test, homogenity test and hypothesis test. The differences of both the tehnique are Scrabble Game can make the students feel enjoy, creative and have a challenge and Bingo Game gives the students opportunity to identify the word interestingly. Based on the data analysis, the researcher uses t-test formula. The researcher got the result of tobserved = 3,69 and ttable is 2.00. it means that tobserved > ttable

75 FR 19455 - Intent To Prepare an Environmental Impact Statement for the South Bay Metro Green Line Extension...

Science.gov (United States)

2010-04-14

...; and encourage a mode shift to transit, reducing air pollution and Greenhouse Gas emissions. The EIS... completion of the Metro Rapid Bus Program would be included as well as possible additional feeder bus... widening, traffic engineering actions, bus route restructuring, shortened bus headways, expanded use of...

Measuring Transit Oriented Development of Existing Urban Areas around Metro Stations in Faridabad City

Directory of Open Access Journals (Sweden)

Sat Pal

2018-01-01

Full Text Available Urban population in Indian cities is encouraging auto reliance and having unsafe economic, social and environmental consequences. Land-use-change patterns are the outcome of the complex relations between the human and the physical surroundings. To address these issues the planners are moving beyond land use planning to a sustainable development. Transit and Land use planning are important components to achieve sustainable future of urban development. TOD is a planning tool to encourage this integration. This paper discusses the land use scenario and opportunity around four Metro transit stations in Faridabad city. Different methods and various sets of indicators are considered to evaluate and measure TOD index in this study. This study will evaluate and measure the Faridabad city in the context of land use around Metro Stations to support TOD. This paper seeks to answer how to promote walkable communities, compact and transit-oriented development (TOD that incorporates mixed land use development, including neighbourhood schools, retail and business related space and a mix range of housing types within walkable distance. This paper concludes that the stations area which had a low TOD score needs to have policy for improvement. If planned efficiently, TODs can realize the sustainable development with considerable change in the urban development that focuses on pedestrian based neighbourhood planning.

Parâmetros astrofísicos de estrelas gigantes do aglomerado globular 47 Tucanae

Science.gov (United States)

Alves-Brito, A.; Barbuy, B.

2003-08-01

Os aglomerados globulares são considerados laboratórios astrofísicos para a verificação da teoria de evolução estelar, bem como a trajetória químio-dinâmica das galáxias hospedeiras. Em particular, 47 Tucanae (NGC 104) configura-se como um dos mais extensivamente estudados aglomerados globulares da Galáxia devido a relativa proximidade ao Sol (R¤ = 4.5 kpc) e alta latitute galáctica (b = -44°,89). Neste trabalho, apresentamos a velocidade radial heliocêntrica e os parâmetros atmosféricos (Teff, logg, [Fe/H]) de 5 estrelas gigantes do aglomerado globular 47 Tucanae. Os espectros foram obtidos pelo espectrógrafo UVES (Ultaviolet Visual Echelle Spectrograph) de alta resolução (R = 60000) e alta razão sinal-ruído (S/N > 200), acoplado ao telescópio de 8,2m Kueyen do VLT (Very Large Telescope). Nós encontramos = -22,43 +/- 3,97 km/s, [Fe/H] ~ -0.7, 1,2 estrelas cobrem um intervalo de magnitude 12,2 < V < 14,2. Os parâmetros atmosféricos são fundamentais para a construção de espectros sintéticos de outros aglomerados globulares ricos em metais. Trabalho financiado pela FAPESP e pelo CNPq.

La sensibilidad de los parámetros en el mercado potencial y actual de una organización

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Francisco Javier Landa Bercebal

2015-07-01

Full Text Available El sistema del mercado compuesto por el entorno, las organizaciones en competencia y los consumidores/compradores realizan una interacción permanente que se concreta en una trayectoria dinámica. Si el mercado se divide en mercado actual y mercado potencial, el cambio de los consumidores/compradores del uno al otro o simplemente la entrada al mercado actual de una organización cualquiera suponen también un proceso dinámico que depende de variables exógenas al sistema y del valor de los parámetros de ajuste, cuyo origen está en la manera de comportamiento de los individuos que componen el sistema estudiado. La sensibilidad y el estudio de esos valores de los parámetros requieren conocer la posible tendencia del sistema, así como el comportamiento del mismo, dependiendo de la región paramétrica en la que se encuentre.

Níveis de alumínio e o desenvolvimento de porta-enxertos cítricos em cultivo hidropônico: I. Parâmetros biométricos

Directory of Open Access Journals (Sweden)

Santos Carlos Henrique dos

1999-01-01

Full Text Available O presente trabalho teve como objetivo avaliar a influência de diferentes níveis de alumínio nos parâmetros biométricos dos porta-enxertos cítricos limoeiro Cravo e citrumeleiro Swingle em cultivo hidropônico. O experimento foi instalado em casa de vegetação em Botucatu, SP. Os tratamentos seguiram o delineamento estatístico inteiramente casualizado, com 3 repetições, em parcelas subdivididas. Os níveis de alumínio utilizados foram: 0; 7,5; 15; 22,5 e 30 mg L-1, na forma de AlCl3 6.H2O em solução nutritiva. Foram avaliados os parâmetros biométricos altura, número de folhas, diâmetro do caule, área foliar, comprimento e volume de raízes. De acordo com os resultados obtidos, conclui-se que o citrumeleiro Swingle apresentou-se mais sensível ao alumínio, sendo que, a partir de 7,5 mg L-1 houve redução nos valores destes parâmetros, enquanto que o limoeiro Cravo mostrou-se mais tolerante aos níveis de alumínio.

GROUND SUBSIDENCE ALONG SHANGHAI METRO LINE 6 BY PS-InSAR METHOD

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J. Wu

2018-04-01

Full Text Available With the rapid development of urban economy, convenient, safe, and efficient urban rail transit has become the preferred method for people to travel. In order to ensure the safety and sustainable development of urban rail transit, the PS-InSAR technology with millimeter deformation measurement accuracy has been widely applied to monitor the deformation of urban rail transit. In this paper, 32 scenes of COSMO-SkyMed descending images and 23 scenes of Envisat ASAR images covering the Shanghai Metro Line 6 acquired from 2008 to 2010 are used to estimate the average deformation rate along line-of-sight (LOS direction by PS-InSAR method. The experimental results show that there are two main subsidence areas along the Shanghai Metro Line 6, which are located between Wuzhou Avenue Station to Wulian Road Station and West Gaoke Road Station to Gaoqing Road Station. Between Wuzhou Avenue Station and Wulian Road Station, the maximum displacement rate in the vertical direction of COSMO-SkyMed images is −9.92 mm/year, and the maximum displacement rate in the vertical direction of Envisat ASAR images is −8.53 mm/year. From the West Gaoke Road Station to the Gaoqing Road Station, the maximum displacement rate in the vertical direction of COSMO-SkyMed images is −15.53 mm/year, and the maximum displacement rate in the vertical direction of Envisat ASAR images is −17.9 mm/year. The results show that the ground deformation rates obtained by two SAR platforms with different wavelengths, different sensors and different incident angles have good consistence with each other, and also that of spirit leveling.

Estudo e determinação de fatores de influência das dimensões dos frascos de radiofármacos utilizados no IPEN para calibração de ativímetros

OpenAIRE

Elaine Wirney Martins

2010-01-01

A eficiência e a segurança de uma prática de medicina nuclear dependem, entre outros fatores, de um programa de controle de qualidade, principalmente no que diz respeito à utilização de medidores de atividade de radionuclídeos (ativímetros). Dentre as maiores fontes de erro nas medidas realizadas com um ativímetro estão: a espessura, o tamanho e o volume do frasco que contém o radiofármaco, considerando que um ativímetro típico tem a sua resposta reconhecidamente dependente do frasco utilizad...

Incidência Pélvica: um parâmetro fundamental para definição do equilíbrio sagital da coluna vertebral Incidência pélvica: un parámetro fundamental para definir el equilibrio sagital de la columna Pelvic incidence: a fundamental parameter for defining the sagittal balance of the spine

Directory of Open Access Journals (Sweden)

Sérgio Afonso Henneman

2012-09-01

Full Text Available Este trabalho propõe um parâmetro anatômico, a incidência pélvica, como fator chave para a compreensão do alinhamento da coluna vertebral. Existe estreita relação, tanto para indivíduos normais como para indivíduos com deformidades da coluna, entre o parâmetro anatômico de incidência pélvica e a inclinação sacral, determinantes da lordose lombar. O ângulo de Cobb e a rotação vertebral apical servem de instrumento para o entendimento do aspecto tridimensional da coluna vertebral e das relações entre a pelve e a coluna. Uma equação preditiva para lordose é apresentada. A incidência pélvica parece ser o fator determinante do equilíbrio sagital da coluna. Ela determina as curvas da coluna vertebral, variando conforme outros parâmetros.En este trabajo se propone un parámetro anatómico, la incidencia de la pelvis, como el factor clave para entender la alineación de la columna vertebral. Hay estrecha relación, tanto para el normal y para las personas con deformidades de la columna entre el parámetro anatómico de la incidencia de la pelvis y la inclinación del sacro, determinantes de la lordosis lumbar. El ángulo de Cobb y la rotación vertebral apical sirven como una herramienta para entender el aspecto tridimensional de la columna vertebral y de su relación con la pelvis. Se presenta una ecuación de predicción para la lordosis. La incidencia pélvica parece ser el factor determinante del equilibrio sagital de la columna. Dicha ecuación determina las curvas de la columna y varía según otros parámetros.This paper proposes an anatomical parameter, the pelvic incidence, as the key factor for managing the spinal balance. There is a close relationship for both normal individuals and those with spinal deformities between the anatomical parameter of pelvic incidence and the sacral slope, which determine lumbar lordosis. The Cobb angle and the apical vertebral rotation serve as a tool for understanding the three

Parámetros del modelo de infiltración de Horton obtenidos mediante el uso de un simulador de lluvia, Córdoba, Argentina

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Juan Francisco Weber

2014-01-01

Full Text Available Se presentan los resultados obtenidos del ajuste de los parámetros del modelo de infiltración de Horton, a partir de los datos experimentales recopilados en una campaña de medición in situ de la capacidad de infiltración en distintos sitios de la ciudad de Córdoba (Argentina. Como instrumento se utilizó un microsimulador de lluvia portátil diseñado y construido en el Laboratorio de Hidráulica, UTN-Facultad Córdoba. Este equipo, que es completamente desarmable y define una parcela de ensayo de 1 m², permite generar lluvias de intensidades comprendidas entre los 65 y 120 mm/h. La selección de los sitios de ensayo respondió a dos condiciones: el tipo y el uso del suelo. A su vez, se consideraron distintas condiciones de humedad inicial. Los valores medidos fueron digitalizados y procesados, construyéndose las curvas de infiltración acumulada y tasa de infiltración en función del tiempo. A partir de estos valores, se ajustaron los parámetros del modelo de Horton. Los parámetros así obtenidos, que superan en calidad a los determinados en campañas anteriores utilizando la técnica del infiltrómetro de doble anillo, serán de utilidad en tareas de diseño hidrológico urbano, y representan un aporte original al conocimiento de la respuesta hidrológica de los suelos urbanos de Córdoba. La propuesta podrá repetirse en otros sitios ampliando de esa forma su significación científica.

Método de Cobb na escoliose idiopática do adolescente: avaliação dos ângulos obtidos com goniômetros articulados e fixos Método de Cobb en la escoliosis idiopática del adolescente: evaluación de los ángulos obtenidos con goniómetros articulados y fijos Cobb method in adolescent idiopathic scoliosis-angle: evaluation with articulated and fixed goniometers

Directory of Open Access Journals (Sweden)

Ana Laura Loyola Munhoz da Cunha

2009-06-01

Full Text Available OBJETIVO: determinar a variação do ângulo de Cobb na escoliose idiopática do adolescente por meio da utilização de dois tipos de goniômetro calibrados: articulado e fixo. MÉTODOS: oito radiografias de pacientes com escoliose idiopática do adolescente, obtidas em aparelho digital, com curva primária grave (acima de 30º foram selecionadas. As imagens de cada uma das oito radiografias das escolioses foram processadas e impressas 36 vezes em película radiográfica (totalizando 228 imagens. As curvas escolióticas tanto primárias como secundárias (17 curvas tiveram suas vértebras-limite pré-determinadas e foram medidas, por seis ortopedistas, atuantes na área de cirurgia da coluna vertebral. Cada examinador recebeu alternadamente um conjunto das 8 escolioses/17 curvas a serem medidas com um goniômetro ora articulado e ora fixo sempre acompanhado de um lápis apropriado para medir radiografias. Os seis ortopedistas mediram cada uma das 17 curvas em seis ocasiões diferentes, sendo que três delas com o goniômetro articulado e três com o goniômetro fixo. O intervalo entre a entrega de cada conjunto não foi inferior a 24 horas. A análise estatística foi feita por meio de testes pareados, para a avaliação da variação entre os diferentes goniômetros pelos mesmos indivíduos, e de comparações por porcentagem, média, coeficientes e índices de variação obtidos, para as demais variáveis estudadas (variação intra e interobservadores. RESULTADOS: entre as 17 curvas avaliadas (A a Q, apenas a curva M mostrou diferenças estatisticamente significativas entre os valores angulares obtidos com o goniômetro articulado (média de 33,3+9,1º e com o goniômetro fixo (27,9+4,2º, em que p=0,009. CONCLUSÃO: não foram encontradas diferenças significativas entre os valores obtidos com o goniômetro articulado e com o goniômetro fixo em 16 das 17 curvas avaliadas na presente amostra. As diferenças observadas entre os goniômetros

Siim Nestor soovitab : uute eesti plaatide esitlusõhtud! Metro Luminal. Lu : K. Metsatöll / Siim Nestor

Index Scriptorium Estoniae

Nestor, Siim, 1974-

2004-01-01

Rockansambli Metro Luminal plaadi "Reboot" esitlusest Tartu Sadamateatris 9. dets. ja Rock Café's Tallinnas 10. dets.(kaasa teeb DJ Sing). Popansambli Lu:k albumist "Raadiomaja valvelauas" ja ansambli 10. aastapäeva tähistamisest 10. dets. Tallinnas Kunstiakadeemia saalis. Ansambli Metsatöll albumi "Hiiekoda" esitlusest 11.dets. Rock Café's Tallinnas

Fuel gas production from animal and agricultural residues and biomass. Quarterly coordination meeting, December 11-12, 1978, Denver, Colorado. Second Quarterly progress report

Energy Technology Data Exchange (ETDEWEB)

Wise, D L; Ashare, E; Wentworth, R L

1979-01-05

The tenth quarterly coordination meeting of the methane production group of the Fuels from Biomass Systems Branch, US Department of Energy was held at Denver, Colorado, December 11-12, 1978. Progress reports were presented by the contractors and a site visit was made to the Solar Energy Research Institute, Golden, Colorado. A meeting agenda, a list of attendees, and progress are presented. Report titles are: pipeline fuel gas from an environmental feedlot; operation of a 50,000 gallon anaerobic digester at the Monroe State Dairy Farm near Monroe, Washington; anaerobic fermentation of livestock and crop residues; anaerobic fermentation of agricultural residues - potential for improvement and implementation; heat treatment of organics for increasing anaerobic biodegradability; and biological conversion of biomass to methane. (DC)

Diseño y construcción de un teslámetro digital embebido para la caracterización magnética de materiales

OpenAIRE

Velásquez, A. A; Baena Rodríguez, Juliana; Gutiérrez Loaiza, Yhefferson Fernando

2015-01-01

Se presenta el diseño, construcción y validación de un teslámetro digital embebido para uso en experimentos de caracterización magnética de materiales por métodos inductivos y estáticos. El teslámetro se compone de un transductor de efecto Hall THS119 de tipo planar, con salida diferencial y ajustable a diferentes rangos de medida, un amplificador de instrumentación INA129P con ganancia ajustable y un microcontrolador PIC16F873A con convertidor ADC de 10 bits para el procesamiento digital de ...

Treinamento de sobrecarga muscular não afeta o diâmetro das principais veias dos membros inferiores em mulheres adultas com insuficiência venosa

Directory of Open Access Journals (Sweden)

Gigliola Cibele Cunha da Silva

2010-12-01

Full Text Available O exercício físico pode promover benefícios na funcionalidade do sistema venoso. Contudo, tratando-se de exercício com sobrecargas musculares, observa-se contraindicações quanto à sua prática diante da possibilidade da mesma estar relacionada ao agravamento das disfunções venosas. OBJETIVO: Analisar os efeitos da prática do exercício com sobrecargas musculares sobre o diâmetro venoso de mulheres fisicamente inativas portadoras de insuficiência venosa crônica de membros inferiores. MÉTODOS: Vinte e duas mulheres com idades entre 21 e 58 anos (34,27 ± 12 anos foram divididas aleatoriamente em dois grupos: experimental (n = 12 e controle (n = 10. O treinamento com cargas foi realizado por 16 semanas, e o diâmetro venoso foi medido nas veias safenas magna (em nível da coxa e perna e parva no membro inferior esquerdo por meio de ecodoppler colorido. Utilizou-se a ANOVA por dois fatores para avaliar as possíveis modificações dos diâmetros entre os grupos e ao longo do tempo (p < 0,05. RESULTADOS: Não foram encontradas alterações significativas nos diâmetros das veias safenas parva (porções superior, média e inferior: p = 0,80, 0,32 e 0,20, respectivamente, magna em nível da perna (p = 0,17, 0,74 e 0,96 e magna em nível da coxa (p = 0,57, 0,67 e 0,52. CONCLUSÃO: A prática do exercício com sobrecargas musculares pode ser considerada um meio de intervenção ou tratamento, uma vez que não promoveu alterações no diâmetro venoso de mulheres que apresentaram insuficiência venosa crônica nos membros inferiores.

Amyotrophic lateral sclerosis: prospective study on respiratory parameters Esclerose lateral amiotrófica: estudo prospectivo de parâmetros respiratórios

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Sara Regina Meira Almeida

2010-04-01

Full Text Available OBJECTIVE: To verify how efficient respiratory parameters are in the follow-up of subjects with amyotrophic lateral sclerosis (ALS and to observe possible correlations between respiratory and nutritional functions. METHOD: Sixteen patients with probable or defined ALS were selected and evaluated over eight months using the following respiratory parameters: spirometry, maximum inspiratory pressure (MIP, maximum expiratory pressure (MEP, arterial gasometry and pulse oximetry; and nutritional parameters such as body mass index (BMI and percentage weight loss. RESULTS: PaCO2 was a significant parameter to follow up disease evolution (p=0.051. There was significant correlation between MIP and MEP (r: 0.83; BMI and MIP (r: 0.70; BMI and MEP (r: 0.72; pulse oximetry and forced vital capacity (r: 0.57. CONCLUSION: PaCO2 was shown to be an efficient and significant parameter in the measurement of respiratory impairment; the correlations among MIP, MEP and BMI indicated that these are significant parameters for periodic clinical evaluation.OBJETIVO: Verificar a eficácia dos parâmetros respiratórios na evolução de indivíduos com esclerose lateral amiotrófica (ELA e identificar possíveis correlações entre função respiratória e nutricional. MÉTODO: 16 pacientes com diagnóstico provável ou definido de ELA foram selecionados por critérios definidos e avaliados, durante 8 meses, através de parâmetros respiratórios: espirometria, pressão inspiratória máxima (PIM, pressão expiratória máxima (PEM, gasometria arterial e oximetria de pulso; e parâmetros nutricionais: índice de massa corporal (IMC e porcentagem de perda de peso. RESULTADOS: PaCO2 foi um parâmetro significativo para acompanhar a evolução da doença (p=0.051. Houve correlação significante entre PIM e PEM (r: 0.83; IMC e PIM (r: 0.70; IMC e PEM (r: 0.72; oximetria de pulso e capacidade vital forçada (r: 0.57. CONCLUSÃO: PaCO2 foi marcador eficaz e significante para

Mezinárodní strategie společnosti Metro - vybrané problémy

OpenAIRE

Zakouřilová, Eliška

2009-01-01

Currently, there is a clear trend of revival of small shops near the customer's home. In this context, formulated by Metro, or Macro new business idea - the concept of small shops / convenience store (ie, smaller stores with food and other basic commodities of daily use). Therefore, it was created and introduced the project Macro Small shops (where the aim is to create a "network of retail stores under the auspices of the macro) to allow the company to effectively compete with chain stores, p...

¿Es válido utilizar con precisión parámetros reológicos obtenidos en laboratorio para modelar aludes torrenciales a escala real?

OpenAIRE

Blanco, Armando; Rodríguez, Carmen; García, Reinaldo

2009-01-01

Para predecir el comportamiento de aludes torrenciales a escala real se utilizan modelos numéricos. Sin embargo, los parámetros reológicos que permiten representar los fluidos que componen el flujo son difíciles de obtener utilizando reómetros convencionales. En general experiencias de laboratorio son combinadas con modelos matemáticos para calibrar los modelos reológicos. Luego, el modelo numérico calibrado es utilizado para predecir el comportamiento de los aludes torrenciales en campo. Sin...

Peak bone mass density among residents of Metro Manila

International Nuclear Information System (INIS)

Lim-Abrahan, M.A.B.; Guanzon, M.L.V.V.; Balderas, J.A.J.; Villaruel, C.M.; Santos, F.

1996-01-01

To determine the peak bone mass density among residents of Metro Manila using dual x-ray absorptiometry (DEXA).The design used is cross-sectional study. The study include 23 females and 22 males, with 3 to 4 subjects for each age range of 5. The methods used was bone mass density measurements on the lumbar spine and the femur using dual x-ray absorptiometry (DPXI lunar) were taken. The values were also age-matched and matched with that of a young adult based on programmed Caucasian norm provided by Lunar Co. The values were then scattered against age for each sex. Ten (10) cc of blood was also extracted from the patients, with 5 cc of blood separated for future studies. Patients were also interviewed as to their lifestyle, diet, use of contraceptive pill or hormonal replacement treatment, using a Filipino version of the revised questionnaire on the WHO Study on osteoporosis. The mean bone mass density at the L21.4 level for females was 1.12±0.11 g/cm 2 and 0,91±0.11 g/cm 2 at the femur. The highest BMD in both the lumbar spine femoral neck measurements among females was achieved between the ages 30-35 years of age with the lowest BMD occurring between 15-20 yrs. old and incidentally in 2 subjects with ages between 40-44. There seems to be little bone loss among beyond the age 35, unlike in the females. Bone mass density among a sample Metro Manila residents was determined using DEXA and the measurements on the lumbar spine and femoral neck. These were age-matched with that of young adult based on Caucasian norm provided by the Lunar Co. Peak bone mass density in the L2L4 level among the females is reached between the ages 30-35 years old, after which there is progressive bone loss with values in the 45-50 years old approximating the values in the 15-19 years old age range. A similar pattern is seen in the measurements taken at the femoral neck. Among males, the peak BMD is reached during the 30-35 years old, but there seems to be no rapid decline or rapid bone

Jet grout strut for deep station boxes of the north/south metro line Amsterdam : Design and back analysis

NARCIS (Netherlands)

Delfgaauw, S.; Buykx, S.M.; Bosch, J.W.

2009-01-01

The new North/South metro line in Amsterdam contains several stations, some of which with an excavation depth of 30 m below surface. The design of these station boxes is very much determined by the adjacent historic buildings, high water table and the relatively soft soil. A lot of effort is put

Penetrômetro de impacto stolf - programa computacional de dados em EXCEL-VBA

Directory of Open Access Journals (Sweden)

Rubismar Stolf

2014-06-01

Full Text Available Há dois principais tipos de penetrômetro, o estático e o dinâmico. No primeiro, uma haste com uma ponta cônica é introduzida contínua e lentamente (quase estático, registrando-se concomitantemente a força de reação que é igual à resistência do solo. No segundo, utiliza-se a mesma haste. Contudo, esta é introduzida por meio da promoção de uma massa de impacto em queda livre. Dessa forma, a teoria pode ser tratada pela dinâmica newtoniana para obtenção da resistência. O objetivo do programa é proporcionar uma ferramenta rápida, facilitadora da computação de dados de resistência do solo, para esse último penetrômetro, resultando tabelas e gráficos já no formato científico. Desenvolvido em linguagem de programação Visual Basic Aplication (VBA, escolheu-se o aplicativo Excel como interface com o usuário pela sua popularidade. É constituído por quatro planilhas, duasauxiliares, sendo duas delas essenciais, Plan1 e 2: Plan1 - dados de entrada (número de impactos e profundidade. Concomitante à digitação, a tabela de resistência é confeccionada com o respectivo gráfico, podendo tabelar 40 perfis. Plan2 - cumpre função especial de equalizar, ou seja, padronizar a profundidade em camadas constantes, permitindo unificar todos os perfis em uma única tabela. Para tal, escolhe-se uma espessura de camada (exemplo: 5 cm; em seguida, o programa coleta os dados de resistência (MPa da Plan1 e interpola os valores para a profundidade de 5 em 5 cm. Após realizar esse procedimento para todas as tabelas da Plan1, o programa gera, na Plan2, uma única tabela com todos os perfis, a média geral e os respectivos gráficos. É possível selecionar os perfis; por exemplo, apenas os medidos na linha ou entrelinha de plantio e eliminar perfis a critério do usuário. Como objetivo complementar, descreve-se a evolução do projeto "Penetrômetro de impacto", iniciado em 1982, cuja técnica passou a ser adotada no meio cient

DETERMINACIÓN DE LA SIMETRÍA DEL PARÁMETRO DE ORDEN EN SUPERCONDUCTORES DE ALTA Tc DE BISMUTO (BiSCCO-2223

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Alvaro Mariño

2012-01-01

Full Text Available A partir de mediciones de la conductividad electrotérmica (P en función del campo magnético externo aplicado, se determinó la simetría del parámetro de orden (OPS de muestras superconductoras de bismuto (BiSCCO-2223, asumiendo una correlación entre el exceso de conductividad electrotérmica y la contribución producida por la dispersión entre cuasipartículas y vórtices. El comportamiento de los resultados experimentales del exceso de la conductividad electrotérmica determinados a partir de mediciones de resistividad eléctrica (ρ y termopotencia (S a diferentes temperaturas cercanas a Tc, se describen bien asumiendo un parámetro de orden con simetría del tipo ondas d (dx2 - y2.

La medición del miedo al delito a través de los barómetros del CIS

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Manuel Caro Cabrera

2017-01-01

Full Text Available En este trabajo se explora si la preocupación por el delito que manifiesta la población española como problema del país y personal en los barómetros del CIS es una buena medida del concepto de miedo al delito. Primero, se muestran las dimensiones del miedo al delito y se presentan las bases conceptuales y empíricas de la preocupación que denominamos problematización del delito. Segundo, se evalúa la pertinencia teórica de adoptar dicho concepto como indicador de miedo al delito. Tercero, se presentan datos que demuestran su utilidad empírica. El análisis concluye que la problematización del delito, construida a partir de los barómetros del CIS, es una buena medida de miedo al delito que además incluye ventajas frente a las utilizadas por las encuestas de victimización.

Splitting Travel Time Based on AFC Data: Estimating Walking, Waiting, Transfer, and In-Vehicle Travel Times in Metro System

Directory of Open Access Journals (Sweden)

Yong-Sheng Zhang

2015-01-01

Full Text Available The walking, waiting, transfer, and delayed in-vehicle travel times mainly contribute to route’s travel time reliability in the metro system. The automatic fare collection (AFC system provides huge amounts of smart card records which can be used to estimate all these times distributions. A new estimation model based on Bayesian inference formulation is proposed in this paper by integrating the probability measurement of the OD pair with only one effective route, in which all kinds of times follow the truncated normal distributions. Then, Markov Chain Monte Carlo method is designed to estimate all parameters endogenously. Finally, based on AFC data in Guangzhou Metro, the estimations show that all parameters can be estimated endogenously and identifiably. Meanwhile, the truncated property of the travel time is significant and the threshold tested by the surveyed data is reliable. Furthermore, the superiority of the proposed model over the existing model in estimation and forecasting accuracy is also demonstrated.

Piezocomposites metal-cerámica como elementos activos en acelerómetros

Directory of Open Access Journals (Sweden)

Ochoa, P.

2002-02-01

Full Text Available Piezoelectric ceramic materials have an important number of applications that is continuing increasing. One of these applications is as driving element in the design of an accelerometer. They may be used in monitoring vibration for the automobile and aeroespacial industries and robotic or civil engineering. The cymbal transducer is a good candidate for accelerometer applications due to its high effective piezoelectric charge coefficients. In this work it is shown that changes in the geometry and size of the caps improve the performance of the sensor. The sensitivity of the cymbal accelerometer increases with decreasing cap size. The mechanical vibration response of the cymbal is studied and different properties, like resonant frequency, electromechanical coupling coefficient, and fastest response time are compared.

Los materiales cerámicos piezoeléctricos presentan un número importante y en continuo aumento de aplicaciones. Entre éstas su utilización como elementos activos en el diseño de acelerómetros posibilita el control de vibraciones en la industria del transporte, aerospacial, robótica e ingeniería civil entre otras. Entre los múltiples diseños como material compuesto destaca, gracias a sus elevados coeficientes de carga efectivos, el denominado tipo címbalo. En este trabajo se comprueba que modificando la geometría y el tamaño de las cápsulas se optimiza el comportamiento del sensor. Concretamente una disminución en el tamaño de las cápsulas se traduce en un aumento de la sensibilidad del acelerómetro. También se muestran los espectros de impedancia y se comparan distintas propiedades como son la frecuencia de resonancia, coeficiente de acoplo electromecánico y tiempo mínimo de respuesta.

ZONEAMENTO GEOAMBIENTAL DO PERÍMETRO URBANO DE SANTA MARIA – RS, BRASIL

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Carlos Alberto da Fonseca Pires

2011-12-01

Full Text Available O presente trabalho de pesquisa tem por objetivo a caracterização geoambiental da paisagem, através da elaboração de Zoneamento Geoambiental do Perímetro Urbano de Santa Maria, Rio Grande do Sul. O perímetro urbano, cujos limites foram definidos pela municipalidade, possui uma área de 13.092 ha e engloba as áreas urbanas e as de possível urbanização. A pesquisa foi desenvolvida tendo como referencial teórico a análise sistêmica, utilizando-se da paisagem como categoria de análise, e como instrumental metodológico a utilização de geotecnologias, especialmente de SIGs. O tratamento metodológico segue a proposta metodológica desenvolvida pelo LAGEOLAM/UFSM, com algumas adaptações. Os atributos utilizados na análise geoambiental compreendem as características climáticas, o substrato geológico, a hidrologia, a geomorfologia, as feições superficiais e o uso e ocupação do solo. A espacialização destes componentes da paisagem, exceto as informações climáticas, através da elaboração de mapas temáticos, e a posterior integração, por meio de uma representação de síntese, foi realizada no software Spring 4.3.3, que permitiu a manipulação de dados de diferentes fontes. Como produto final estabeleceu-se uma hierarquia composta por nove unidades geoambientais, seis subunidades e quatro feições. A elaboração do zoneamento geoambiental, através do estudo integrado da paisagem, constitui numa importante ferramenta no gerenciamento dos recursos da área.

Development of a Statistical Model for Forecasting Episodes of Visibility Degradation in the Denver Metropolitan Area.

Science.gov (United States)

Reddy, P. J.; Barbarick, D. E.; Osterburg, R. D.

1995-03-01

In 1990, the State of Colorado implemented a visibility standard of 0.076 km1 of beta extinction for the Denver metropolitan area. Meteorologists with Colorado's Air Pollution Control Division forecast high pollution days associated with visibility impairment as well as those due to high levels of the federal criteria pollutants. Visibility forecasts are made from a few hours up to about 26 h in advance of the period of interest. Here we discuss the key microscale, mesoscale, and synoptic-scale features associated with episodes of visibility impairment. Data from special studies, case studies, and the 22 NOAA Program for Regional Observing and Forecasting Services mesonet sites have been invaluable in identifying patterns associated with extremes in visibility conditions. A preliminary statistical forecast model has been developed using variables that represent many of these patterns. Six variables were selected from an initial pool of 27 to be used in a model based on linear logistic regression. These six variables include forecast measures of snow cover, surface pressures and a surface pressure gradient in eastern Colorado, relative humidity, and 500-mb ridge position. The initial testing of the model has been encouraging. The model correctly predicted 76% of the good visibility days and 67% of the poor visibility days for a test set of 171 days.

Construção e avaliação de psicrômetro aspirado de termopar Construction and evaluation of an aspirated thermocouple psychrometer

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Fábio Ricardo Marin

2001-12-01

Full Text Available Construiu-se um psicrômetro de termopar aspirado, de baixo custo e fácil utilização em sistemas automáticos de aquisição de dados, utilizando-se tubos de PVC. A aspiração foi feita por ventiladores utilizados em microcomputadores e as temperaturas foram determinadas com junções de termopar de cobre-constantan. Para umidecimento do bulbo, utilizou-se um cordão de algodão. Os resultados da comparação com higrômetro capacitivo Vaisala Inc. e com psicrômetro aspirado tipo Assman mostraram que tanto em ambientes naturais como em controlados, a precisão e a exatidão das medidas foi muito boa, de maneira que o psicrômetro aqui descrito pode ser empregado para determinação da pressão atual de vapor e da umidade relativa sem perda de qualidade dos dados, e também em estudos que levem em conta gradientes de temperatura e umidade específica.The construction of a low cost aspirated thermocouple psychrometer made of PVC tubes is described. The instrument can easily be connected to dataloggers. The aspiration is made by fans used in microcomputers and temperatures measured with cooper-constantan thermocouples. A cotton string was used to make the wet junction. Its perfomance was evaluated in comparison to an Assman aspirated psychrometer and a Vaisala Inc. capacitive higrometer, in natural and controlled environments. The results show a good agreement between measures, allowing air vapour, relative humidity, temperature and specific humidity gradients to be determined using the proposed psychrometer.

Evaluation of passenger health risk assessment of sustainable indoor air quality monitoring in metro systems based on a non-Gaussian dynamic sensor validation method.

Science.gov (United States)

Kim, MinJeong; Liu, Hongbin; Kim, Jeong Tai; Yoo, ChangKyoo

2014-08-15

Sensor faults in metro systems provide incorrect information to indoor air quality (IAQ) ventilation systems, resulting in the miss-operation of ventilation systems and adverse effects on passenger health. In this study, a new sensor validation method is proposed to (1) detect, identify and repair sensor faults and (2) evaluate the influence of sensor reliability on passenger health risk. To address the dynamic non-Gaussianity problem of IAQ data, dynamic independent component analysis (DICA) is used. To detect and identify sensor faults, the DICA-based squared prediction error and sensor validity index are used, respectively. To restore the faults to normal measurements, a DICA-based iterative reconstruction algorithm is proposed. The comprehensive indoor air-quality index (CIAI) that evaluates the influence of the current IAQ on passenger health is then compared using the faulty and reconstructed IAQ data sets. Experimental results from a metro station showed that the DICA-based method can produce an improved IAQ level in the metro station and reduce passenger health risk since it more accurately validates sensor faults than do conventional methods. Copyright © 2014 Elsevier B.V. All rights reserved.

Crescimento em diâmetro do Pinus elliottii e Pinus taeda em áreas arenizadas e degradadas no Oeste do Rio Grande do Sul

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Paulo Renato Schneider

2014-09-01

Full Text Available Este trabalho foi realizado com o objetivo de estudar o desempenho do Pinus elliottii Engelm. e Pinus taeda L. em áreas arenizadas e degradadas por ação antrópica, na região da fronteira oeste do estado do Rio Grande do Sul. Em povoamentos, foram selecionadas árvores médias, que foram abatidas e seccionadas pelo método de Smalian, a fim de obter discos de madeira para a análise dendrocronológica, para a obtenção do diâmetro por idade. O crescimento em diâmetro, quando comparado entre espécies, apresentou tendências diferentes de níveis de desenvolvimento no tempo. O uso de variáveis dummy no modelo de crescimento permitiu definir uma equação única para estimar o diâmetro em função da idade para ambas as espécies, considerando os níveis de degradação do solo médio e baixo, como variáveis necessárias para estimar o crescimento destas espécies nestes tipos de solos arenizados e degradados.

UN PENETRÓMETRO DINÁMICO PARA EVALUAR LA RESISTENCIA MECÁNICA EN SUELOS FORESTALES

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Irma Vásquez García

2011-01-01

matorral. En laboratorio se prepararon muestras de diferente densidad aparente y contenido de humedad para probar la sensibilidad del penetrómetro. El equipo diseñado es sensible a los ambios de resistencia mecánica a densidades bajas (0.6-1.0 Mg·m-3, que son comunes en los suelos forestales y cambios de humedad del suelo (5-25 %. Con la validación del protocolo se encontró que una serie de 10 impactos genera un dato confiable sobre la resistencia mecánica del suelo superficial.

Digital non-linear equalization for flexible capacity ultradense WDM channels for metro core networking

DEFF Research Database (Denmark)

Arlunno, Valeria; Zhang, Xu; Larsen, Knud J.

2011-01-01

carriers, we demonstrate that a digital non-linear equalization allow to mitigate inter-channel interference and improve overall system performance in terms of OSNR. Evaluation of the algorithm and comparison with an ultradense WDM system with coherent carriers generated from a single laser are also......An experimental demonstration of Ultradense WDM with advanced digital signal processing is presented. The scheme proposed allows the use of independent tunable DFB lasers spaced at 12.5 GHz for ultradense WDM PM-QPSK flexible capacity channels for metro core networking. To allocate extremely closed...

Sistema electrónico de calibración de fruta por diámetro

OpenAIRE

Cruz Lemus, Erico

2013-01-01

En la actualidad, las cooperativas recolectan, seleccionan, tratan y separan la fruta según su calibre (peso, diámetro máximo, medio y/o mínimo) para que esta llegue al consumidor final según la categoría (calibre). Para poder competir en un mercado cada vez más exigente en calidad y precios, se requieren sistemas de clasificación automáticos que nos permitan obtener óptimos resultados con altos niveles de producción y productividad. Para realizar estas tareas existen calibr...

Medición de Parámetros Eléctricos y Análisis Económico Enfocado al Entorno Nacional-Edición Única

OpenAIRE

Carlos Valdes Parada

2003-01-01

Los sistemas de medición de parámetros eléctricos son muy utilizados actualmente en la industria y se encuentran disponibles en varias presentaciones dependiendo fundamentalmente de sus características de análisis y despliegue de los mismos. El siguiente trabajo de tesis se centra en el acondicionamiento de señales digitalizadas correspondientes a parámetros eléctricos de voltaje y corriente reales. Se diseñó un módulo con la electrónica necesaria para acondicionar dichas señales. Las partes ...

Crescimento em diâmetro do Pinus elliottii e Pinus taeda em áreas arenizadas e degradadas no Oeste do Rio Grande do Sul

OpenAIRE

Schneider, Paulo Renato; Elesbão, Luiz Ernesto Grilo; Schneider, Paulo Sérgio Pigato; Longhi, Régis Villanova

2014-01-01

Este trabalho foi realizado com o objetivo de estudar o desempenho do Pinus elliottii Engelm. e Pinus taeda L. em áreas arenizadas e degradadas por ação antrópica, na região da fronteira oeste do estado do Rio Grande do Sul. Em povoamentos, foram selecionadas árvores médias, que foram abatidas e seccionadas pelo método de Smalian, a fim de obter discos de madeira para a análise dendrocronológica, para a obtenção do diâmetro por idade. O crescimento em diâmetro, quando comparado entre espécies...

Somatic mutation in peripheral blood lymphocytes among Metro Manila residents: indicator of exposure to environmental pollution

International Nuclear Information System (INIS)

Yulo-Nazarea, Teresa; Cobar, Ma. Lucia C.; Nato, Alejandro Q.; Nazarea, Apolinario D.

2001-01-01

Results of a four-year study on somatic mutation in peripheral blood lymphocytes among Metro Manila residents as an indicator of exposure to environmental pollution conducted by the Philippine Nuclear Research Institute (PNRI) is presented. The study which involves mutation indexing of 200 blood donors demonstrated very strong correlation between high levels of ambient air pollution and increase incidence of mutation at the specific gene locus in peripheral blood lymphocytes among residents of specific areas in Metro Manila. Using the PNRI adapted protocol to determine incidence of mutation at a specific gene marker, hypoxanthine guanine phosphoribosyl transferase (HGPRT), our database analysis indicated a statistically significant difference between mean mutation index of blood donors residing in an area with lower level of pollution (Las Pinas) compared to those residents living in areas with the highest estimated pollution level (Valenzuela). The results of the statistical analyses should provide regulators the direction in incorporating the data into their pollution abatement program to maximize health impact. Biomarker analysis should play a greater role in the future in the formulation of national environment policies. The temporal variation of these ''aseline data'' as the Philippine moves forward through the next several years in its industrialization program should in itself be a very valuable source of environmental policy instruments. (Author)

Influencia de la Altitud en Parámetros Fisiológicos Generales y Heméticos de Bovinos Holstein.

Directory of Open Access Journals (Sweden)

Arango O Nora Cecilia

1992-12-01

Full Text Available Con el objeto de evaluar el efecto de la altitud sobre algunos parámetros fisiológicos generales y hemáticos de los bovinos Holstein, ubicados en dos zonas de vida del departamento de Antioquia, se determinaron la frecuencia cardíaca, frecuencia respiratoria, temperatura rectal, hemoglobina, hematocrito, recuento total de glóbulos blancos, cantidad de glóbulos rojos, y recuento diferencial de glóbulos blancos, de 154 animales en dos estados fisiológicos: vacas adultas en el segundo tercio de la gestación y terneras de 6 a 12 meses de edad, distribuídos en: 78 animales ubicados a una altitud de 2.400 metros sobre el nivel del mar y 76 animales ubicados a una altitud promedio de 1.350 metros sobre el nivel del mar. Los resultados indican que las frecuencias respiratoria y cardiaca, el hematocrito, la hemoglobina, la cantidad de glóbulos rojos y el recuento de linfocitos y neutrófilos presentaron diferenci.a significativa (p≤0,05 con respecto a la altitud. El análisis del estado fisiológico indicó que las frecuencias cardíaca y respiratoria, la temperatura rectal, el hematocrito y la cantidad de glóbulos rojos presentaron diferencia significativa (p≤0,05 entre estados fisiológicos. Con base en la información obtenida en este estudio, se pudo demostrar que la altitud expresó un efecto significativo (p≤0,05 sobre las frecuencias cardiaca y respiratoria, la hemoglobina, el hematocrito y la cantidad de glóbulos rojos de los animales evaluados.

Prototipos de prueba de acelerómetro y conexión Bluetooth para terminales Android

OpenAIRE

Velasco Gracia, Raúl

2012-01-01

Los objetivos que persigue este PFC son los siguientes: +Estudio de la plataforma Android y el empleo del acelerómetro y opcionalmente el giroscopio para enviar ordenes a un robot móvil. + Realización y prueba de una aplicación que haga uso de tales recursos. + Elaboración de una memoria que pueda utilizarse con propósito docente. Escuela Técnica Superior de Ingeniería de Telecomunicación Universidad Politécnica de Cartagena

Avaliação tomográfica de parâmetros morfométricos do processo odontoide relacionados à fixação interna com parafusos Evaluación tomográfica de parámetros morfométricos del proceso odontoides relacionados con la fijación interna con tornillos Tomographic evaluation of odontoid parameters related to its internal fixation

Directory of Open Access Journals (Sweden)

Murilo Tavares Daher

2010-09-01

Full Text Available OBJETIVOS: avaliar, por meio da tomografia computadorizada, os parâmetros morfométricos do processo odontoide relacionados com a sua fixação interna. MÉTODOS: cinquenta e cinco exames de tomografia computadorizada (TC da coluna cervical que permitissem o estudo do áxis foram utilizados para o estudo. Destes, 24 (47% pertenciam a pacientes do sexo masculino e 31 do sexo feminino. A média de idade foi de 42,05 anos (± 15,82. Foram excluídos os casos com diagnóstico de tumores, infecções, sequelas de fratura, artrose muito avançada ou malformações congênitas. Nenhum dos exames tinha como indicação problemas relacionados à coluna cervical alta. Foram avaliados os seguintes parâmetros: 1 - comprimento estimado do implante (CEI, 2 - angulação do parafuso (aP, 3 - diâmetro transverso mínimo (DTmín e 4 - diâmetro anteroposterior mínimo (DAPmín. Foi utilizado o teste t de Student para comparar os resultados entre o grupo de pacientes do sexo masculino e do feminino. RESULTADOS: o valor médio do CEI foi de 37,95 mm ± 3,44 para a população geral do estudo. O valor médio da angulação do parafuso (aP foi de 60,91º ± 4,06. O diâmetro transverso mínimo (DTmín foi de 9,05 mm ± 0,88 e o diâmetro antero-posterior mínimo DAPmín foi de 10,35 mm ±1,04. Os valores do CEI e do DAPmín na população masculina foram significativamente maiores do que aqueles encontrados na feminina, enquanto os outros parâmetros não apresentaram diferenças entre os dois sexos na população estudada. Dos 55 pacientes, 39% apresentaram DTmín OBJETIVOS: evaluar, por medio de la tomografía computarizada, los parámetros morfométricos del proceso odontoides relacionados con su fijación interna. MÉTODOS: para el estudio, fueron utilizados 55 exámenes de tomografía computarizada (TC de la columna cervical que permitieran el estudio del axis. De éstos, 24 (47% pertenecían a pacientes del sexo masculino. El promedio de edad fue de 42.05 a

Motif Dan Kepuasan Masyarakat Surabaya Dalam Menonton Program Dialog “Titik Tengah” Di Metro TV Jawa Timur

OpenAIRE

Gunawan, Like

2016-01-01

Penelitian ini dilakukan untuk mengetahui kepuasan masyarakat Surabaya dalam menonton program dialog “Titik Tengah” di Metro TV Jawa Timur. Pada penelitian ini, peneliti menggunakan teori Uses and Gratification dengan variabel Gratification Sought (GS) dan Gratification Obtained (GO) yang memiliki indikator yaitu informasi, identitas pribadi, integrasi dan interaksi sosial, dan hiburan.Teknik analisis yang digunakan dalam penelitian ini adalah teknik analisis eksplenatif dengan statistik infe...

COMPACTAÇÃO DE SOLOS EM LABORATÓRIO: EFEITO DO DIÂMETRO E DO NÚMERO DE CAMADAS DO CORPO DE PROVA

Directory of Open Access Journals (Sweden)

Flavio Alessandro Crispim

2015-06-01

Full Text Available RESUMONeste trabalho, estudou-se a influência do diâmetro e do número de camadas do corpo de prova nas curvas de compactação de laboratório e na resistência mecânica de dois solos residuais de gnaisse da Zona da Mata Norte de Minas Gerais, respectivamente, de texturas argilo-areno-siltosa (Solo 1 e areno-silto-argilosa (Solo 2, com vistas à construção de estradas florestais. Além dos resultados dos ensaios de compactação, determinou-se a resistência à compressão não confinada dos solos empregando corpos de prova compactados na umidade ótima (wot e nos teores de umidade 3% abaixo e 2% acima, considerando como referência a energia de compactação do ensaio Proctor normal e empregando corpos de prova compactados em uma, duas e três camadas, bem como nos diâmetros de 35 mm, 73 mm e 100 mm, com nove repetições. Para fins práticos de engenharia e com base em análise estatística aplicada aos parâmetros massa específica aparente seca e resistência à compressão não confinada, pode-se concluir que: (i há diferenças significativas entre as compactações realizadas em uma e em três camadas, não ocorrendo o mesmo nas compactações realizadas em duas e em três camadas, para ambos os solos; e (ii há diferenças significativas entre a compactação de corpos de prova de diâmetro 100 mm e os demais de 73 mm e 35 mm, para o solo 1 (argiloso, bem como há também diferenças apenas no ramo seco da curva de compactação, para o solo 2 (arenoso.

Early diagnosis and Early Start Denver Model intervention in autism spectrum disorders delivered in an Italian Public Health System service

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Devescovi R

2016-06-01

Full Text Available Raffaella Devescovi,1 Lorenzo Monasta,2 Alice Mancini,3 Maura Bin,1 Valerio Vellante,1 Marco Carrozzi,1 Costanza Colombi4 1Division of Child Neurology and Psychiatry, 2Clinical Epidemiology and Public Health Research Unit, Institute for Maternal and Child Health – IRCCS “Burlo Garofolo”, Trieste, 3Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy; 4Department of Psychiatry, University of Michigan Health System, Ann Arbor, MI, USA Background: Early diagnosis combined with an early intervention program, such as the Early Start Denver Model (ESDM, can positively influence the early natural history of autism spectrum disorders. This study evaluated the effectiveness of an early ESDM-inspired intervention, in a small group of toddlers, delivered at low intensity by the Italian Public Health System.Methods: Twenty-one toddlers at risk for autism spectrum disorders, aged 20–36 months, received 3 hours/wk of one-to-one ESDM-inspired intervention by trained therapists, combined with parents’ and teachers’ active engagement in ecological implementation of treatment. The mean duration of treatment was 15 months. Cognitive and communication skills, as well as severity of autism symptoms, were assessed by using standardized measures at pre-intervention (Time 0 [T0]; mean age =27 months and post-intervention (Time 1 [T1]; mean age =42 months.Results: Children made statistically significant improvements in the language and cognitive domains, as demonstrated by a series of nonparametric Wilcoxon tests for paired data. Regarding severity of autism symptoms, younger age at diagnosis was positively associated with greater improvement at post-assessment.Conclusion: Our results are consistent with the literature that underlines the importance of early diagnosis and early intervention, since prompt diagnosis can reduce the severity of autism symptoms and improve cognitive and language skills in younger children

Influência do diâmetro do orifício piloto na resistência ao arrancamento dos parafusos do corpo vertebral The influence of pilot hole diameter on screw pullout resistance

Directory of Open Access Journals (Sweden)

Helton L. A. Defino

2007-01-01

Full Text Available Foram realizados ensaios mecânicos com o objetivo de avaliar a influência do diâmetro do orifício piloto em relação ao diâmetro interno do parafuso na resistência ao arrancamento dos parafusos do sistema de fixação vertebral aplicados no corpo da vértebra. O estudo foi realizado em duas etapas. Na primeira etapa foram utilizados corpos de prova de poliuretana para a colocação de parafusos de 5mm e, 6mm , e na segunda etapa os parafusos foram inseridos na face lateral dos corpos das vértebras lombares de suínos. O orifício piloto foi realizado com brocas de diâmetro menor, igual ou maior que o diâmetro interno do parafuso. Foram realizados ensaios mecânicos de arrancamento em máquina universal de teste para a avaliação da força máxima de arrancamento dos implantes. Foi observado que o diâmetro do orifício piloto em relação ao diâmetro interno do parafuso influencia na resistência ao arrancamento dos implantes.Mechanical assays were performed in order to assess the influence of pilot hole diameter versus screw's inner diameter on screw pullout resistance in the vertebral fixation systems applied to the vertebral body. The study was conducted in two stages. In the first, polyurethane test bodies were used for placing 5 and 6 mm screws, and, in the second stage, the screws were inserted into the lateral surface of the lumbar vertebral bodies of pigs. The pilot hole was built with drills with smaller, similar or larger diameter than screws' inner diameter. Mechanical pullout assays were performed using a universal test machine for the assessment of maximum pullout screw resistance. The diameter of the pilot hole versus screw's inner diameter was shown to influence screw pullout resistance.

King County Metro Battery Electric Bus Demonstration: Preliminary Project Results

Energy Technology Data Exchange (ETDEWEB)

2017-05-22

The U.S. Federal Transit Administration (FTA) funds a variety of research projects that support the commercialization of zero-emission bus technology. To evaluate projects funded through these programs, FTA has enlisted the help of the National Renewable Energy Laboratory (NREL) to conduct third-party evaluations of the technologies deployed under the FTA programs. NREL works with the selected agencies to evaluate the performance of the zero-emission buses compared to baseline conventional buses in similar service. The evaluation effort will advance the knowledge base of zero-emission technologies in transit bus applications and provide 'lessons learned' to aid other fleets in incrementally introducing next generation zero-emission buses into their operations. This report provides preliminary performance evaluation results from a demonstration of three zero-emission battery electric buses at King County Metro in King County, Washington. NREL developed this preliminary results report to quickly disseminate evaluation results to stakeholders. Detailed evaluation results will be published in future reports.

A Metro Map Metaphor for Guided Tours on the Web

DEFF Research Database (Denmark)

Sandvad, Elmer Sørensen; Grønbæk, Kaj; Sloth, Lennert

2001-01-01

maps and route maps with indication of which stations of a tour have been visited; and finally (4) support for arbitrary web pages as stations on the tour. The paper discusses the Webvise Guided Tour System and illustrates its use in a digital library portal. The system is compared to other recent Web......This paper presents a guided tour system for the WWW. It is a module for the Webvise open hypermedia system that implements the ideas of trails and guided tours, originating from the hypertext field. Webvise appears as an open hypermedia helper application to the user and stores the guided tours...... in an XML format called OHIF separated from the WWW documents included in the tour. The main advantages of the system are: (1) a browser independent format in terms of HTML and PNG-based image maps for reading the guided tours; (2) support for a familiar metaphor, namely, a metro route map; (3) overview...

Indoor Air Quality in the Metro System in North Taiwan

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Ying-Yi Chen

2016-12-01

Full Text Available Indoor air pollution is an increasing health concern, especially in enclosed environments such as underground subway stations because of increased global usage by urban populations. This study measured the indoor air quality of underground platforms at 10 metro stations of the Taipei Rapid Transit system (TRTS in Taiwan, including humidity, temperature, carbon monoxide (CO, carbon dioxide (CO2, formaldehyde (HCHO, total volatile organic compounds (TVOCs, ozone (O3, airborne particulate matter (PM10 and PM2.5, bacteria and fungi. Results showed that the CO2, CO and HCHO levels met the stipulated standards as regulated by Taiwan’s Indoor Air Quality Management Act (TIAQMA. However, elevated PM10 and PM2.5 levels were measured at most stations. TVOCs and bacterial concentrations at some stations measured in summer were higher than the regulated standards stipulated by Taiwan’s Environmental Protection Administration. Further studies should be conducted to reduce particulate matters, TVOCs and bacteria in the air of subway stations.

Indoor Air Quality in the Metro System in North Taiwan.

Science.gov (United States)

Chen, Ying-Yi; Sung, Fung-Chang; Chen, Mei-Lien; Mao, I-Fang; Lu, Chung-Yen

2016-12-02

Indoor air pollution is an increasing health concern, especially in enclosed environments such as underground subway stations because of increased global usage by urban populations. This study measured the indoor air quality of underground platforms at 10 metro stations of the Taipei Rapid Transit system (TRTS) in Taiwan, including humidity, temperature, carbon monoxide (CO), carbon dioxide (CO₂), formaldehyde (HCHO), total volatile organic compounds (TVOCs), ozone (O₃), airborne particulate matter (PM 10 and PM 2.5 ), bacteria and fungi. Results showed that the CO₂, CO and HCHO levels met the stipulated standards as regulated by Taiwan's Indoor Air Quality Management Act (TIAQMA). However, elevated PM 10 and PM 2.5 levels were measured at most stations. TVOCs and bacterial concentrations at some stations measured in summer were higher than the regulated standards stipulated by Taiwan's Environmental Protection Administration. Further studies should be conducted to reduce particulate matters, TVOCs and bacteria in the air of subway stations.

Why does Bogota not have at least one metro line? And the reasons why it will probably not have one

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Óscar A. Alfonso Roa

2016-11-01

Full Text Available Although the decision on the first metro line in Bogotá was first sketched out 75 years ago, the city still does not have it, but there is no academic reflection on the reasons for such delay. During this period, the physical and institutional capital dedicated to mobility has deteriorated to the point of capsizing the system of mass passenger transport. The result is visible in the substantial increase in unproductive travel time, traffic congestion, saturation of the fleet intended for collective mobility and personal insecurity to which users are exposed. This article supports the idea that in a metropolis of eight million people, with powerful infrastructure inflexibility, the layout of the priority metro line should be resolved in favor of connecting the most densely populated areas of the city, which would progressively solve investment lags and would provide increased ecological and financial sustainability of the system of mass transit.

Construção de um calorímetro de baixo custo para a determinação de entalpia de neutralização

OpenAIRE

Assumpção, M. H. M. T.; Wolf, L. D.; Bonifácio, V. G.; Fatibello-Filho, O.

2010-01-01

Neste artigo descreve-se a construção de um calorímetro simples, utilizando materiais de fácil aquisição, para a determinação de entalpia de neutralização (pressão constante) de reações ácido-base. Foram utilizadas para o desenvolvimento do experimento soluções de ácidos e bases fortes e fracos, além de termômetro e recipiente de poliestireno expandido (isopor) para a medida e manutenção da temperatura, respectivamente. Com este experimento, foi então possível determinar a entalpia de neutral...

Distribución, abundancia y parámetros poblacionales de la mojarra Diapterus rhombeus (Pisces: Gerreidae) en la Laguna de Términos, Campeche, México

OpenAIRE

Luis Amado Ayala-Pérez; Blanca Andrea Gómez-Montes; Julia Ramos Miranda

2001-01-01

Diapterus rhombeus es una especie dominante dentro de la comunidad nectónica de la Laguna de Términos y se encuentra asociada a zonas con vegetación sumergida, con temperaturas entre 27 y 33°C y salinidad entre 25 y 36.5 UPS. Un total de 3024 individuos fueron recolectados con una red de arrastre en 23 sitios entre septiembre de 1997 y septiembre de 1998. Los parámetros del modelo Talla-Peso son a=0.0098; b=3.155 con una correlación del 96%. Los parámetros de crecimiento son L = 20.4cm, k= 0...

Lixiviação de aldicarbe em macrolisímetros de dois Latossolos Aldicarb leaching in macrolysimeters of two Latosols

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Nélio Ricardo Amaral Castro

2005-08-01

Full Text Available O objetivo deste trabalho foi avaliar a lixiviação do inseticida aldicarbe em macrolisímetros contendo material indeformado dos solos Latossolo Vermelho distroférrico (LVdf e Latossolo Vermelho-Amarelo distrófico (LVAd, em condições de campo. Uma formulação granulada de aldicarbe foi aplicada na dose recomendada, a 5 cm de profundidade, em lisímetros de 1,0 m de diâmetro e 0,45 e 0,90 m de profundidade, no início do período chuvoso. Nos cinco meses seguintes, o volume de água percolada nos lisímetros foi medido e amostras de água foram analisadas por cromatografia gás-líquido para a determinação da concentração de resíduos do composto. Os resíduos de aldicarbe e de seus produtos de oxidação ativos, sulfóxido e sulfona de aldicarbe, foram conjuntamente determinados na forma de sulfona de aldicarbe. Houve alta mobilidade dos resíduos de aldicarbe nos solos, porém, a intensa degradação desses resíduos resultou em sua lixiviação em quantidades relativamente baixas, a profundidades abaixo de 0,45 m (4,9% e 5,9% no LVdf e LVAd, respectivamente; na água percolada nos lisímetros de 0,90 m foram detectados resíduos apenas no LVdf. O risco de contaminação do lençol freático nos solos estudados, caracterizados como muito profundos, é mínimo.The objective of this work was to evaluate the leaching of aldicarb in macrolysimeters containing undisturbed soil material of a distroferric Red Latosol and of a distrofic Red Yellow Latosol, under field conditions. A granular formulation of the aldicarb pesticide was applied at the recommended rate, at 5 cm depth, in soil columns of 1.0 m diameter by 0.45 and 0.90 m long, at the beginning of the rainy season. The volume of percolated water in each lysimeter was measured during the subsequent five months, and water samples were analysed by gas-liquid chromatography for the determination of the pesticide residues concentration. Residues of aldicarb and its toxic transformation

EL FACTOR DE SOSTENIBILIDAD: DISEÑOS ALTERNATIVOS Y VALORACIÓN FINANCIERO - ACTUARIAL DE SUS EFECTOS SOBRE LOS PARÁMETROS DEL SISTEMA

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Robert Meneu Gaya

2013-05-01

Full Text Available La Ley 27/2011, que reforma el sistema de pensiones español, introduce el factor de sostenibilidad, un instrumento que ajusta automáticamente los parámetros del sistema a la evolución de la esperanza de vida a partir del año 2027 y con revisiones cada 5 años, aunque la reciente Ley Orgánica 2/2012 de Estabilidad Presupuestaria y Sostenibilidad Financiera abre la posibilidad de que se anticipe su entrada en vigor si se proyecta un déficit a largo plazo en el sistema de pensiones. Dado que el diseño concreto del factor de sostenibilidad está pendiente, resulta relevante analizar cómo otros países de la Unión Europea han incorporado instrumentos similares en sus sistemas de pensiones y, desde esas experiencias, ofrecer diseños alternativos para el caso español, valorando los efectos de cada uno de ellos sobre los parámetros del sistema, utilizando para ello las recientes proyecciones de esperanza de vida del Instituto Nacional de Estadística. La Ley 27/2011, que reforma el sistema de pensiones español, introduce el factor de sostenibilidad, un instrumento que ajusta automáticamente los parámetros del sistema a la evolución de la esperanza de vida a partir del año 2027 y con revisiones cada 5 años, aunque la reciente Ley Orgánica 2/2012 de Estabilidad Presupuestaria y Sostenibilidad Financiera abre la posibilidad de que se anticipe su entrada en vigor si se proyecta un déficit a largo plazo en el sistema de pensiones. Dado que el diseño concreto del factor de sostenibilidad está pendiente, resulta relevante analizar cómo otros países de la Unión Europea han incorporado instrumentos similares en sus sistemas de pensiones y, desde esas experiencias, ofrecer diseños alternativos para el caso español, valorando los efectos de cada uno de ellos sobre los parámetros del sistema, utilizando para ello las recientes proyecciones de esperanza de vida del Instituto Nacional de Estadística.

USING STORYTELLING TO INCREASE SPEAKING PERFORMANCE OF PAI STUDENTS OF MUHAMMADIYAH UNIVERSITY OF METRO

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Amirudin - Latif

2013-10-01

Full Text Available The study is intended to increase speaking performance of PAI students of Muhammadiyah University of Metro by using storytelling. The design of the research is collaborative classroom action research which involves a collaborator in whole process of the research. The instruments of the research are observation sheet, field notes, and speaking test. The criteria of success of the research are 100% from thirty students are active in the classroom and get score equal to or more than 70. The result shows that twenty two students get score 70 in Cycle 1 and thirty in Cycle 2.

UN PENETRÓMETRO DINÁMICO PARA EVALUAR LA RESISTENCIA MECÁNICA EN SUELOS FORESTALES

OpenAIRE

Irma Vásquez García; Armando Gómez Guerrero; Alejandro Velázquez Martínez; Arnulfo Aldrete; Aurelio M. Fierros-González

2011-01-01

Se diseñó un penetrómetro cónico de impacto para evaluar la resistencia mecánica de los suelos forestales. El equipo diseñado es ligero ya que sólo pesa 4.1 kg, preciso porque se validó en campo y laboratorio, portátil porque desensamblado se puede cargar en el chaleco de un operador de campo, y práctico porque la capacitación para su uso es sencilla y es adecuado para trabajos de inventarios forestales y de suelo. Los resultados mostraron que el uso del prototipo es viable en diferentes ecos...

Predicción bayesiana de parámetros genéticos en clones de Eucalyptus globulus bajo condiciones de suplemento hídrico

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Freddy Mora

2013-01-01

Full Text Available Se realizó un análisis Bayesiano de parámetros genéticos del crecimiento en 29 clones de Eucalyptus globulus de doce meses de edad, en el sur de Chile. Se consideraron dos condiciones ambientales contrastantes en cuanto a la disponibilidad hídrica: 1. Sin irrigación, y 2. Las plantas se irrigaron con un sistema localizado de riego. Para el análisis Bayesiano se utilizó el algoritmo de Gibbs en un modelo de interacción clonambiente. Los valores de heredabilidad fueron altos en la condición de riego (moda a posteriori de H^2=0,41, 0,36 y 0,39 para la altura, diámetro y área basal, respectivamente, en tanto que en la situación sin riego, los valores de las heredabilidades fueron significativamente más bajos; confirmado por medio de los intervalos de credibilidad Bayesianos (95 % de probabilidad. La moda a posteriori de la correlación genética entre sitios fue positiva y alta para las tres características (r=0,7, 0,65 y 0,8, para altura, diámetro y área basal, respectivamente, y de acuerdo al intervalo de credibilidad, esta correlación fue estadísticamente diferente de cero, indicando una interacción no significativa.

Parâmetros hematológicos e bioquímicos do surubim do Iguaçu (Steindachneridion melanodermatum criados em tanques-rede

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Micheli Zaminhan

2017-06-01

Full Text Available O surubim do Iguaçu (S. melanodermatum é o maior pimelodídeo do Rio Iguaçu, podendo atingir até 15,0 kg e 70,0 cm de comprimento. Porém, escassos são os estudos sobre sua fisiologia principalmente em relação às características hematológicas e bioquímicas da espécie, que são fundamentais por contribuírem na compreensão fisiológica, filogenética e o estado de saúde dos peixes. Dentro desse intuito, o presente trabalho avaliou as características hematológicas e bioquímicas do Surubim do Iguaçu cultivados em tanques – rede. Determinou-se os seguintes parâmetros: concentração de hemoglobina, percentual de hematócrito, contagem de eritrócitos, volume corpuscular médio (VCM, hemoglobina corpuscular média (HCM, concentração de hemoglobina corpuscular média (CHCM. Para os parâmetros bioquímicos determinou–se: glicose plasmática, proteínas totais, colesterol total e triglicerídeos. Os parâmetros hematológicos e bioquímicos observados no surubim do Iguaçu S. melanodermatum  fornecem valores sanguíneos que poderão servir de comparação, para mesma espécie em outras situações de cultivo.

Astronomy in Denver: Effects of a summer camp on girls’ preconceived notions of careers in STEM

Science.gov (United States)

Hoffman, Jennifer L.; Fetrow, Kirsten J.; Broder, Dale E.; Murphy, Shannon M.; Tinghitella, Robin; Hart, Quyen N.

2018-06-01

Despite gains in recent years, gender disparities persist in fields related to science, technology, engineering, and mathematics (STEM). Although young women can perform as well as their male peers in STEM courses and tests, they are less likely to pursue higher education and careers in STEM. Our study examined the effectiveness of a STEM-focused summer camp at increasing middle-school girls’ career aspirations in STEM and self-confidence with respect to scientific topics. The 15 participants were Denver-area girls ages 10 to 13 years old from groups underrepresented in STEM fields. During the weeklong DU SciTech camp, these girls built telescopes and computers, collected and classified insects, completed inquiry activities, and interacted with female STEM professionals from a variety of scientific fields and racial backgrounds. We hypothesized that camp attendance would expand girls’ perceptions of who does science, increase their awareness of and interest in STEM careers, and increase their scientific self-efficacy, or belief in their ability to succeed at STEM tasks. We found that DU SciTech improved the girls’ scientific self-efficacy and awareness of STEM careers, but it did not increase their (already high) interest in pursuing their own careers in STEM. We will present our results and discuss their implications for future summer camps and efforts to broaden STEM participation by young women from underrepresented groups.

Typhoon Haiyan-Induced Storm Surge Simulation in Metro Manila Using High-Resolution LiDAR Topographic Data

Science.gov (United States)

Santiago, J. T.

2015-12-01

Storm surge is the abnormal rise in sea water over and above astronomical tides due to a forthcoming storm. Developing an early warning system for storm surges is vital due to the high level of hazard they might cause. On 08 November 2013, Typhoon Haiyan generated storm surges that killed over 6,000 people in the central part of the Philippines. The Nationwide Operational Assessment of Hazards under the Department of Science and Technology was tasked to create storm surge hazard maps for the country's coastal areas. The research project aims to generate storm surge hazard maps that can be used for disaster mitigation and planning. As part of the research, the team explored a scenario wherein a tropical cyclone hits the Metro Manila with strength as strong as Typhoon Haiyan. The area was chosen primarily for its political, economic and cultural significance as the country's capital. Using Japan Meteorological Agency Storm Surge model, FLO2D flooding software, LiDAR topographic data, and GIS technology, the effects of a Haiyan-induced tropical cyclone passing through Metro Manila was examined. The population affected, number of affected critical facilities, and potential evacuation sites were identified. The outputs of this study can be used by the authorities as basis for policies that involve disaster risk reduction and management.

Bafômetro positivo: correlatos do comportamento de beber e dirigir na cidade de Belo Horizonte, Minas Gerais, Brasil Alcoholímetro positivo: interrelación entre la conducta de beber y conducir en la ciudad de Belo Horizonte, Minas Gerais, Brasil Positive breathalyzer test: factors associated with drinking and driving in the city of Belo Horizonte, Minas Gerais State, Brazil

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Valdir Ribeiro Campos

2013-01-01

Full Text Available As características dos condutores que adotam o comportamento do beber e dirigir ainda não foram bem estudadas no país. O presente estudo apresenta dados da prevalência e características dos motoristas sob a influência de álcool nas nove regionais da cidade de Belo Horizonte, Minas Gerais, Brasil. Foram entrevistados 1.656 condutores. Desses, 1.254 (76% aceitaram responder a um questionário estruturado e fazer o teste do bafômetro. O teste do bafômetro foi positivo para 15% dos condutores. O modelo de regressão logística prediz bafômetro positivo com chance 1,5 vez maior para os condutores com idade acima de 31 anos e 4,5 vezes maior para quem tem frequência de consumo de álcool pelo menos semanal. Além disso, condutores da regional Barreiro tem 2 vezes mais chances de apresentarem bafômetro positivo. Estudos localizados com metodologia dos postos de checagem da sobriedade podem monitorar o comportamento e características dos condutores, riscos no trânsito e direcionar políticas públicas para o beber e dirigir.Las características de los conductores que adoptan la conducta de beber y conducir todavía no han sido bien estudiadas en el país. El presente estudio muestra datos de la prevalencia y características de los conductores bajo la influencia de alcohol en las nueve carreteras regionales de la ciudad de Belo Horizonte, Minas Gerais, Brasil. Se entrevistaron a 1.656 conductores. De ellos, 1.254 (76% aceptaron responder a un cuestionario estructurado y hacer el test del alcoholímetro. El test del alcoholímetro fue positivo para un 15% de los conductores. El modelo de regresión logística predice un alcoholímetro positivo con una probabilidad 1,5 vez mayor para los conductores de edad por encima de los 31 años y 4,5 veces mayor para quien tiene una frecuencia de consumo de alcohol por lo menos semanal. Asimismo, conductores de la regional Barreiro tienen 2 veces más probabilidad de presentar positivo en el alcoholímetro

Determinación de los parámetros para la simulación matemática del proceso de deshidratación de la uchuva (Physalis Peruviana L.)

OpenAIRE

Mahecha Godoy, Juan Carlos

2011-01-01

El objetivo de este trabajo fue determinar experimentalmente los parámetros necesarios para la simulación matemática del proceso de deshidratación de la Uchuva (Physalis peruviana L.). Para ello se evaluó el proceso de deshidratación con aire caliente para dos pre-tratamientos: escaldado, osmodeshidratado y testigo sin ningún tratamiento especial. Como parámetros para la simulación matemática del proceso de deshidratación de la uchuva se determinaron las ecuaciones para el Contenido de Humeda...

Estimación de los Parámetros de un Modelo de una Celda Fotovoltaica Utilizando un Algoritmo de Optimización de Búsqueda de Patrones

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Andrés Felipe Tobón-Mejía

2015-07-01

Full Text Available En este artículo se propone un nuevo método para la estimación de los parámetros del modelo matemático de una celda fotovoltaica de un solo diodo. El trabajo está basado en el algoritmo de optimización llamado Pattern Search Method (MPS, por sus siglas en inglés. Los parámetros estimados son: corriente de diodo, corriente de saturación, resistencia en serie, resistencia en paralelo y el factor del diodo ideal. Los resultados muestran que es posible obtener el modelo equivalente a través de la identificación de los parámetros. Adicionalmente, los resultados obtenidos son comparados con datos obtenidos mediante un emulador de celdas fotovoltaicas. Para realizar los experimentos se asumió condiciones controladas, es decir, temperatura e irradiación constantes. De esta manera, se puede deducir que el método propuesto se puede utilizar en aplicaciones de control para el seguimiento del máximo punto de potencia (MPPT, por sus siglas en inglés de celdas fotovoltaicas.

PARÂMETROS DE CURVAS TEMPO-INTENSIDADE DOS ESTÍMULOS DOCE E AMARGO DE EDULCORANTES: SELEÇÃO POR ANÁLISE DISCRIMINANTE POR PASSO E ANÁLISE DE CORRELAÇÃO

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Helena Maria André Bolini CARDELLO

2009-07-01

Full Text Available

A análise tempo-intensidade é uma técnica que permite estudar as variações de intensidade de estímulos sensoriais com o decorrer do tempo. Para este estudo, são coletados os valores de parâmetros das curvas obtidas, os quais são submetidos a análises estatísticas, que fornecem informações sobre o estimulo sensorial gerado pela amostra avaliada. Esse processo é trabalhoso, uma vez que são analisadas várias curvas, em razão do número de amostras, provadores e repetições. O objetivo do presente trabalho foi verificar a possibilidade de diminuir o número de parâmetros que devem ser obtidos de cada curva. Para isso, foram realizadas análises de correlação entre os parâmetros e análise discriminante por passos. Os edulcorantes estudados foram: aspartame, extrato de folhas de estévia e ciclamato/sacarina 2:1, em doçura equivalente à sacarose em solução a 3%, 10%,20% e 30%. Os parâmetros obtidos foram: tempo para atingir a intensidade máxima (TImáx, tempo onde a intensidade máxima começa a declinar (Td, tempo de duração da intensidade máxima (Platô, área total sob a curva (Área, tempo total de duração do estímulo (Ttot e intensidade máxima percebida (Imáx Concluiu-se que, para os gostos doce e amargo, para os edulcorantes estudados, o parâmetro Área poderia ser eliminado .

Precisión diagnóstica de indicadores antropométricos: perímetro de cintura, índice cintura-talla e índice cintura-cadera para la identificación de sobrepeso y obesidad infantil

Directory of Open Access Journals (Sweden)

HI Saldívar-Cerón

2016-04-01

Full Text Available INTRODUCCIÓN: la identificación de obesidad durante la infancia es complicada debido a que la talla sigue incrementándose y la composición corporal está cambiando constantemente; actualmente su diagnóstico se realiza por medio de los patrones de crecimiento propuestos por la Organización Mundial de la Salud (OMS; sin embargo, se han propuesto diversos indicadores antropométricos para una detección equivalente.   OBJETIVO: determinar la precisión diagnóstica del perímetro de cintura, el índice cintura-talla y el índice cintura-cadera para la identificación de sobrepeso y obesidad infantil.   MATERIAL Y MÉTODOS: estudio transversal y analítico con una muestra de 1,001 escolares (9-11 años de ambos géneros. Se hicieron las mediciones antropométricas (peso, talla, perímetro de cintura y perímetro de cadera y se calculó el índice de masa corporal, índice cintura-talla e índice cintura-cadera. Se evaluó la correlación de los índices antropométricos vs. el índice de masa corporal y se efectuó un análisis de curvas ROC tomando como variable de estudio el perímetro de cintura, índice cintura talla e índice cintura-cadera y como parámetro de referencia los percentiles de índice de masa corporal (OMS, 2007. Se obtuvieron la sensibilidad, especificidad, las áreas bajo la curva, el valor predictivo positivo y negativo de los indicadores antropométricos y los puntos de corte que identifican sobrepeso y obesidad.   RESULTADOS: el perímetro de cintura y el índice cintura talla tienen una alta correlación positiva (r = 0.75, 0.69, respectivamente; p < 0.001, pero la correlación fue débil para el índice cintura-cadera (r = 0.23; p < 0.001. El perímetro de cintura e índice cintura-talla mostraron grandes áreas bajo la curva, sensibilidad, especificidad, valor predictivo positivo y valor predictivo negativo para la identificación de obesidad infantil. CONCLUSIÓN: el perímetro de cintura

ESTIMACIÓN DE PARÁMETROS EN MODELOS NO LINEALES: ALGORITMOS Y APLICACIONES

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Óscar Cornejo Zúñiga

Full Text Available En este artículo se muestran diferentes algoritmos para estimar parámetros en modelos no lineales. Se aplican primeramente a una base de datos de problemas clasificados difíciles. Posteriormente, se muestra el comportamiento de los algoritmos para el estudio de crecimiento de la merluza común en machos y hembras, anchoveta y sardina común ajustando un modelo de Von Bertalanffy. Se aplica el test de Cerrato para la comparación de crecimientos entre géneros para la merluza común. Los algoritmos se implementaron en ambiente MATLAB presentando un buen comportamiento en cuanto a tiempo CPU, número de iteraciones y exactitud de la solución encontrada respecto de valores certificados de los problemas de la base de datos.

Balón hidrostático de gran diámetro en coledocolitiasis Large hydrostatic ballon for choledocolithiasis

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J. Espinel

2007-01-01

Full Text Available Objetivo: valorar la eficacia y seguridad de la dilatación hidrostática con balones de gran diámetro en el tratamiento de la coledocolitiasis en pacientes con factores que dificultan o hacen peligrosa la extracción, por las características de los cálculos o de la anatomía peripapilar. Diseño: prospectivo. Pacientes: estudio que incluye 22 pacientes a los que se realizó dilatación hidrostática de la papila con balones de gran diámetro entre junio de 2005 y abril de 2006 por presentar cálculos de gran tamaño, múltiples, colédoco distal afilado, papila peri-/intradiverticular, esfinterotomía previa o Billroth-II. Se emplearon dilatadores CRE de esófago, píloro y colon (Boston Scientific Corporation de diámetros entre 12 y 20 mm. Resultados: se consiguió la extracción de los cálculos en una sesión en todos los pacientes (100%. La mayor parte de las exploraciones (73% no requirieron tiempos prolongados para la extracción. No hubo complicaciones. Se detectó hiperamilasemia en el 18% de los pacientes. Conclusiones: la dilatación hidrostática de la papila con balones de gran diámetro es una técnica sencilla, eficaz y segura en la extracción de cálculos difíciles de la vía biliar, sin incrementar el tiempo de la exploración, ni las complicaciones, reduciendo la necesidad de litotricia. Son necesarios estudios adicionales para definir la utilidad de esta técnica.Aim: to assess the efficacy and safety of hydrostatic dilatation with large balloons for the treatment of choledocolithiasis in patients with difficult or risky extraction due to stone characteristics or peripapillary anatomy. Design: prospective. Patients: this study included 22 patients in whom a hydrostatic dilatation of the papilla with large balloons was performed between June 2005 and April 2006. Patients had multiple large stones, tapered distal common bile duct, peri-/intradiverticular papilla, previous sphincterotomy, or Billroth-II surgery. Esophageal

Effects of Parent-Implemented Early Start Denver Model Intervention on Chinese Toddlers with Autism Spectrum Disorder: A Non-Randomized Controlled Trial.

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Zhou, Bingrui; Xu, Qiong; Li, Huiping; Zhang, Ying; Wang, Yi; Rogers, Sally J; Xu, Xiu

2018-04-01

To evaluate the effects of a 26-week, high-intensity, parent-implemented Early Start Denver Model (P-ESDM) intervention on developmental outcomes, severity of autism spectrum disorder (ASD), and parental stress of ASD toddlers in China. Subjects in P-ESDM group (n = 23) were recruited from 1.5- to 2.5-year-old toddlers who were screened positive in Xuhui and Minhang Districts and were diagnosed with ASD. A community (comparison) group of age-matched toddlers with ASD (n = 20) was recruited from other areas. Subjects of the P-ESDM group attended 1.5-hr parent coaching per week for 26 weeks, and those in the community group received interventions available from communities. Assessments were conducted at baseline (T1) and 26 weeks later (T2). After adjusting for baseline differences between the two groups, P-ESDM group demonstrated greater improvement than the community group in general development, especially in Language domain. Neither group demonstrated significant change in ASD severity, but the P-ESDM group showed greater improvement in social affect, parent-reported social communication and symbolic play than community group did. Finally, parents in P-ESDM group experienced decreased parenting stress while those in community group showed an opposite trend, though the differences did not reach significant association with the P-ESDM intervention. Chinese toddlers with ASD receiving 26 weeks of P-ESDM via regular coaching sessions showed significant greater improvement than those receiving community interventions in multiple aspects of development including social communications. These findings add support to the importance of providing early screening, diagnosis, and immediate referral for evidence-based interventions to improve outcome of young children with ASD. Autism Res 2018, 11: 654-666. © 2017 International Society for Autism Research, Wiley Periodicals, Inc. The development of early screening and diagnosis of autism spectrum disorder (ASD) in

Cost Offset Associated With Early Start Denver Model for Children With Autism.

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Cidav, Zuleyha; Munson, Jeff; Estes, Annette; Dawson, Geraldine; Rogers, Sally; Mandell, David

2017-09-01

To determine the effect of the Early Start Denver Model (ESDM) for treatment of young children with autism on health care service use and costs. We used data from a randomized trial that tested the efficacy of the ESDM, which is based on developmental and applied behavioral analytic principles and delivered by trained therapists and parents, for 2 years. Parents were interviewed about their children's service use every 6 months from the onset of the intervention to follow-up (age 6 years). The sample for this study consisted of 39 children with autism who participated in the original randomized trial at age 18 to 30 months, and were also assessed at age 6 years. Of this sample, 21 children were in the ESDM group, and 18 children were in the community care (COM) group. Reported services were categorized and costed by applying unit hourly costs. Annualized service use and costs during the intervention and post intervention for the two study arms were compared. During the intervention, children who received the ESDM had average annualized total health-related costs that were higher by about $14,000 than those of children who received community-based treatment. The higher cost of ESDM was partially offset during the intervention period because children in the ESDM group used less applied behavior analysis (ABA)/early intensive behavioral intervention (EIBI) and speech therapy services than children in the comparison group. In the postintervention period, compared with children who had earlier received treatment as usual in community settings, children in the ESDM group used less ABA/EIBI, occupational/physical therapy, and speech therapy services, resulting in significant cost savings in the amount of about $19,000 per year per child. Costs associated with ESDM treatment were fully offset within a few years after the intervention because of reductions in other service use and associated costs. Early Characteristics of Autism; http://clinicaltrials.gov/; NCT0009415

Programação, conexão e avaliação de psicrômetro aspirado de termopar de baixo custo em micrologger para estudos agrometeorológicos

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Antonio Ribeiro da Cunha

2013-06-01

Full Text Available Como o método psicrométrico é considerado padrão para a medida da umidade relativa do ar, muitas pesquisas têm utilizado psicrômetros aspirados de termopares conectados em microloggers, mas, no entanto, não detalham a forma de como é feita a aspiração da corrente de ar. Contudo, uma das maiores dificuldades dos psicrômetros aspirados de termopar têm sido a programação e a conexão em micrologger pelo usuário, pois exige especificidade na forma de programação, conexão e habilidade na obtenção de medidas acuradas. Assim, este trabalho teve o objetivo de fornecer a programação e a conexão do psicrômetro aspirado de termopar tipo T, conectado nos microloggers CR10X e CR23X da Campbell Scientific, avaliando-se a qualidade das medidas obtidas de temperatura e umidade relativa do ar em relação a um sensor Vaisala HMP50. As medidas não contínuas foram feitas no período de 04/09/2006 a 11/07/2007 em Jaboticabal, SP. As medidas de temperatura do ar foram semelhantes entre os sensores Vaisala e psicrômetro aspirado de termopar, mas nas medidas de umidade relativa do ar, houve diferenças significativas, sendo que as medidas obtidas pelo psicrômetro aspirado de termopar conectado ao CR10X foram as mais precisas. Utilizando a programação e a conexão de um micro-ventilador 12 VDC da forma sugerida para aspirar os bulbos seco e úmido do psicrômetro aspirado de termopar, nos microloggers modelos CR10X e CR23X, é possível obter medidas de temperatura do ar com boa precisão e exatidão, mas, no entanto, medidas de umidade relativa do ar com boa precisão e exatidão nem sempre é atingida, devido às dificuldades inerentes ao processo físico que ocorre no bulbo úmido, a habilidade e manutenção no uso deste equipamento, e a proteção do reservatório contra os efeitos radiativos.

Time Shared Optical Network (TSON): a novel metro architecture for flexible multi-granular services.

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Zervas, Georgios S; Triay, Joan; Amaya, Norberto; Qin, Yixuan; Cervelló-Pastor, Cristina; Simeonidou, Dimitra

2011-12-12

This paper presents the Time Shared Optical Network (TSON) as metro mesh network architecture for guaranteed, statistically-multiplexed services. TSON proposes a flexible and tunable time-wavelength assignment along with one-way tree-based reservation and node architecture. It delivers guaranteed sub-wavelength and multi-granular network services without wavelength conversion, time-slice interchange and optical buffering. Simulation results demonstrate high network utilization, fast service delivery, and low end-to-end delay on a contention-free sub-wavelength optical transport network. In addition, implementation complexity in terms of Layer 2 aggregation, grooming and optical switching has been evaluated. © 2011 Optical Society of America

The Dynamic Optimization of the Departure Times of Metro Users during Rush Hour in an Agent-Based Simulation: A Case Study in Shenzhen, China

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Yuliang Xi

2017-10-01

Full Text Available As serious traffic problems have increased throughout the world, various types of studies, especially traffic simulations, have been conducted to investigate this issue. Activity-based traffic simulation models, such as MATSim (Multi-Agent Transport Simulation, are intended to identify optimal combinations of activities in time and space. It is also necessary to examine commuting-based traffic simulations. Such simulations focus on optimizing travel times by adjusting departure times, travel modes or travel routes to present travel suggestions to the public. This paper examines the optimal departure times of metro users during rush hour using a newly developed simulation tool. A strategy for identifying relatively optimal departure times is identified. This study examines 103,637 person agents (passengers in Shenzhen, China, and reports their average departure time, travel time and travel utility, as well as the numbers of person agents who are late and miss metro trips in every iteration. The results demonstrate that as the number of iterations increases, the average travel time of these person agents decreases by approximately 4 min. Moreover, the latest average departure time with no risk of being late when going to work is approximately 8:04, and the earliest average departure time with no risk of missing metro trips when getting off work is approximately 17:50.

Comportamiento de algunos parámetros de los azúcares crudos analizados durante el quinquenio 2006-2010. Parte 2

OpenAIRE

Roberto J. Rodríguez-Mambuca; Julián Rodríguez-López; Jesús Mesa-Oramas; Alejandra Sánchez-Herrera; Miriam Gay-Querol Camacho

2014-01-01

El objetivo del presente trabajo es brindar información sobre el comportamiento de diferentes parámetros con incidencia en la calidad del azúcar crudo producido durante el quinquenio 2006-2010 tales como: par- tículas ferromagnéticas, ceniza, granulometría, insolubles, dextrana y almidón, y evaluar las tendencias de esos índices por provincias.

Importância dos parâmetros seminais nos resultados de inseminação intra-uterina

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Borges Junior Edson

2003-01-01

Full Text Available OBJETIVOS: analisar a relevância dos parâmetros seminais nos resultados dos ciclos de inseminação intra-uterina (IIU em pacientes com causa masculina de infertilidade e salientar o caráter prognóstico de cada parâmetro para o sucesso da técnica. MÉTODOS: duzentos e trinta e nove ciclos de IIU (155 casais foram analisados durante período de 15 meses. Todos as pacientes foram submetidas à indução da ovulação de acordo com protocolos do I Consenso Brasileiro de Indução de Ovulação. A análise seminal foi realizada de acordo com os critérios da Organização Mundial da Saúde (OMS para parâmetros como concentração e motilidade e critério estrito de Kruger para avaliação da morfologia. O preparo da amostra para IIU foi realizado por meio de gradientes descontínuos de densidade (ISolate®. Foram formados dois grupos de pacientes de acordo com o resultado de gestação: grupo G - gestação positiva e grupo NG - gestação negativa. RESULTADOS: não houve diferença significativa nos valores obtidos relacionados à concentração total de espermatozóides/mL de sêmen, motilidade total, motilidade de formas progressivas antes e depois do processamento seminal. Quando a morfologia estrita de Kruger foi comparada entre os dois grupos, diferenças significativas foram encontradas (grupo G=10,6% de formas normais; grupo NG=6,4% de formas normais; p<0.05 quando o número de espermatozóides/mL inseminados foi superior a 15 milhões/mL, a taxa de gravidez foi significantemente maior. CONCLUSÕES: tanto a morfologia estrita de Kruger como o número de espermatozóides inseminados parecem ser fatores prognósticos positivos para o estabelecimento da gestação, devendo ser salientados na investigação do homem infértil.

Parâmetros Ecocardiográficos e Sobrevida na Cardiopatia Chagásica com Disfunção Sistólica Importante

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Daniela do Carmo Rassi

2014-04-01

Full Text Available Fundamento: O ecocardiograma fornece dados importantes na avaliação cardiológica de pacientes em insuficiência cardíaca. A identificação de parâmetros ecocardiográficos na cardiopatia chagásica grave auxiliaria na implementação terapêutica e na avaliação prognóstica. Objetivo: Correlacionar parâmetros ecocardiográficos com desfecho mortalidade cardiovascular em pacientes com fração de ejeção 70,71 mL/m2 foi associado ao aumento significativo na mortalidade (log rank p < 0,0001. Conclusão: O volume indexado do átrio esquerdo mostrou-se como único fator de predição independente de mortalidade nesta população de pacientes chagásicos e com disfunção sistólica importante.

UTILIZACIÓN DE IMÁGENES DIGITALES PARA MEDICIÓN DEL DIÁMETRO DE FRUTOS DE MANDARINA (Citrus reticulata EN CRECIMIENTO

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Carlos Alberto Padrón-Pereira

2014-04-01

Full Text Available El propósito de este trabajo fue usar imágenes digitales para medir el diámetro ecuatorial de frutos de mandarina durante el crecimiento en el árbol para construir curvas de crecimiento. El experimento se realizó en una parcela (9 m x 5 m, ubicada en Valencia (Venezuela y cultivada con árboles frutales (Acerola, limón, mandarina, palmeras creciendo naturalmente. Se seleccionaron dos frutos de la parte inferior de la copa (altura del suelo 2.5 m en crecimiento, de idéntico diámetro ecuatorial (39 mm y en la cercanía se colocó una referencia fija de medida. Se utilizó una computadora portátil, una cámara digital calibrada y un software de diseño gráfico. El ensayo se llevó a cabo durante 105 días y cada 4 a 5 días se fotografiaron los frutos. Las imágenes captadas se descargaron en la computadora y procesaron con el software CorelDRAW® X3. La medición de los frutos en las imágenes se realizó con una regla graduada virtual creada con el software y con los datos obtenidos se elaboraron curvas de crecimiento. Los dos frutos se comportaron de similar manera durante el crecimiento, con coincidencias en las mediciones los días 58 y 84 (44.25 y 50.50 mm, respectivamente, en este último día, aproximadamente se inició la fase 3, coincidiendo en ambos frutos. Los diámetros ecuatoriales alcanzados a los 105 días fueron 48.50 y 50.75 mm para el fruto 1 y 2, respectivamente. Fueron factibles las mediciones mediante el procedimiento utilizado.

Revisión de parámetros fisicoquímicos como indicadores de calidad y contaminación del agua

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Natalia Eugenia Samboni Ruiz

2007-09-01

Full Text Available Con el fin de facilitar la interpretación de los datos físicos, químicos y biológicos, cada vez más agencias medio-ambientales, universidades e institutos recurren a los indices de calidad y contaminación del agua (ICA e ICO, los cuales mediante una expresión matemática que representa todos los parámetros valorados permiten evaluar el recurso hídrico. La elaboración y aplicación de cualquier indicador es específica para cada región o fuente en particular; pero su construcción básicamente consta de tres pasos fundamentales: la selección de las variables, la determinación de los subíndices para cada parámetro y la elección de la fórmula de agregación. Los variables que más se tienen en cuenta en este proceso son: pH, oxígeno disuelto, Demanda Bioquímica de Oxígeno (DBO, una forma de nitrógeno, fosfatos y sólidos totales (ST. Por lo tanto su uso no puede ser generalizado ya que se podría terminar realizando juicios subjetivos, además bajo un solo indicador no se puede evaluar la dinámica de un sistema, por lo que es importante también el estudio de cada variable individualmente. Este artículo presenta una revisión de los indicadores ICA e ICO más utilizados en algunos países de América y Europa,asi como su diseño e interpretación, que se basan en parámetros físico-químicos para su evaluación.

Estimación de parámetros de regresión no lineal mediante colonia de abejas artificiales

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Sergio Gerardo de los Cobos Silva

2013-04-01

Full Text Available Este trabajo presenta los resultados de la técnica heurística de ABC (Artificial Bee Colony utilizada para estimar los parámetros de modelos de regresión no lineal. El algoritmo fue probado sobre 27 bases de datos de la colección NIST (2001, de las cuales 8 se consideran con un alto grado de dificultad. Se presentan los resultados experimentales.

Caracterización de la resistencia de la subrasante con la información del deflectómetro de impacto

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Carlos Hernando Higuera Sandoval

2011-05-01

Full Text Available El artículo recopila las diferentes metodologías para caracterizar  la  resistencia  de  la  subrasante  y  la capacidad estructural  efectiva de una  estructura de pavimento  con  la  información del deflectómetro de impacto. Este  documento  es  producto del  proyecto de  investigación  titulado  Caracterización  de  laresistencia de  la  subrasante  con  la  información del deflectómetro de impacto, registrado en la Dirección de Investigaciones de la Uptc con el código SGI-759,que  realizó  el  autor  en  la Escuela  de Transporte  y Vías,  Facultad  de  Ingeniería,  de  la Universidad Pedagógica y Tecnológica de Colombia, en el Grupo de Investigación y Desarrollo en Infraestructura Vial –Grinfravial–.

CALIBRACIÓN DE LOS PARÁMETROS DE UN MODELO DE HORNO DE ARCO ELÉCTRICO EMPLEANDO SIMULACIÓN Y REDES NEURONALES

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Mauricio Alexánder Álvarez López

Full Text Available El horno de arco eléctrico proporciona un medio relativamente simple para la fusión de metales. Se utiliza en la producción de acero de alta pureza, aluminio, cobre, plomo, entre otros metales. Sin embargo, los hornos de arco son considerados como la carga más nociva para el sistema eléctrico de potencia. Por consiguiente, resulta de gran importancia contar con modelos de horno de arco que permitan determinar con alto grado de aproximación el comportamiento de este tipo de carga, puesto que se podría evaluar su impacto en términos de índices de calidad de energía para el sistema de potencia al cual se conecten. Uno de los principales problemas que surge al utilizar los modelos matemáticos de arco eléctrico consiste en la calibración de los parámetros que describen la dinámica del modelo. En este documento se muestra un procedimiento para calibrar todos los parámetros de un modelo de horno de arco eléctrico de corriente alterna, dadas mediciones reales de tensiones y corrientes. Se utiliza una red neuronal multicapa como emulador del modelo del horno. La red neuronal se entrena empleando datos de simulación obtenidos del modelo del horno implementado en el entorno Matlab®-Simulink®. Una vez entrenada la red, los parámetros de interés se obtienen resolviendo un problema inverso. Los resultados obtenidos muestran un error máximo de 4,1 % en el valor eficaz de las corrientes del arco eléctrico.

Conformação de úbere de caprinos da raça Saanen: parâmetros estéticos ou funcionais?

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D. S. Santos

2015-10-01

Full Text Available RESUMODiversos fatores predisponentes são descritos para as afecções mamárias ou distúrbios secundários que comprometem a qualidade e produtividade de leite de fêmeas nas diferentes espécies. As características fenotípicas do úbere são consideradas na avaliação econômica de uma fêmea caprina, tanto pelo potencial de produção como pelo registro genealógico dessa fêmea. A limitação de estudos correlacionando essas características com a saúde do úbere gera a dúvida a respeito do significado da conformação do mesmo à saúde e produtividade da glândula mamária. Sendo assim, este estudo teve como objetivo relacionar os parâmetros da conformação do úbere com a celularidade da glândula mamária aferida pelo teste California Mastitis Test (CMT e contagem de células somáticas (CCS em 80 cabras da raça Saanen sem alterações no exame clínico da glândula mamária nem no teste de Tamis. Observou-se que a maioria dos parâmetros fenotípicos de úbere não influenciou a CCS, sendo considerados puramente estéticos. A circunferência e profundidade de úbere demonstraram correlação negativa com a celularidade e, por serem características de herdabilidade moderada a alta, podem ser parâmetros considerados para seleção genética de caprinos.

Mensuração da evolução terapêutica com paquímetro digital na Paralisia Facial Periférica de Bell

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Claudia Hosana da Maceno Salvador

2013-06-01

Full Text Available OBJETIVO: avaliar o uso do paquímetro digital na mensuração dos movimentos da mímica facial em diferentes momentos do tratamento fonoaudiológico. MÉTODO: estudo longitudinal prospectivo, em 20 sujeitos com idade entre 07 e 70 anos, sendo 13 do genero feminino e 07 masculino, com diagnóstico de paralisia facial periférica de Bell, atendidos no Ambulatório de Paralisia Facial, da disciplina de otorrinolaringologia de um Hospital Público Universitário. Neste estudo foi adotado o uso de um medidor paquímetro digital da marca Digimess 100.174BL, instrumento com resolução de 0,00mm/152,78mm. As medições foram realizadas no movimento da mímica facial, sempre partindo de um ponto fixo para o ponto móvel nas estruturas: tragus e comissura labial, canto externo do olho e comissura labial e também canto interno do olho e asa do nariz, sendo realizadas pré e pós tratamento fonoaudiológico. A quantificação da incompetência do movimento foi mensurada por meio de porcentagem simples. Foi aplicado teste dos Postos Sinalizados de Wilcoxon, para verificar possíveis diferenças entre ambos os momentos considerados (com e sem movimentos, como as variáveis de interesse. RESULTADOS: as mensurações tiveram um resultado estatisticamente significante (p<0,05 em todas as estruturas medidas propostas (tragus e comissura labial, canto externo do olho e comissura labial e canto interno do olho e asa do nariz, demonstrando que há possibilidades de se fazer medições de movimento e de ausência de movimento utilizando o paquímetro digital. CONCLUSÃO: o paquímetro mostrou ser um instrumento útil que permitiu comparar, de forma objetiva, a evolução da reabilitação da mímica facial na Paralisia Facial Periférica de Bell na amostra estudada.

Utilização da medida do clorofilômetro no manejo da adubação nitrogenada em plantas de pimentão

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Godoy L. J. G.

2003-01-01

Full Text Available O adequado manejo da adubação nitrogenada ao longo do ciclo da cultura do pimentão é complicado pela falta de um índice do N disponível no solo e por ser a análise química de folhas um método de diagnose demorado. Foi realizado um experimento em vasos, em um túnel de plástico pertencente ao Departamento de Recursos Naturais/Ciência do Solo, da FCA/UNESP, Botucatu (SP, com o objetivo de avaliar o índice de suficiência de nitrogênio (ISN, calculado com base nas medidas do clorofilômetro, como ferramenta auxiliar no manejo da adubação nitrogenada em plantas de pimentão. O experimento foi composto de doses de N (4,9; 9,8; 14,7; 19,6; e 24,5 g de N 50 kg-1 de solo - uma planta aplicadas de modo convencional ou pela fertirrigação e um tratamento em que as plantas não receberam apenas a adubação nitrogenada, com sete repetições. As medidas do clorofilômetro foram realizadas a cada 15 dias em cinco folhas recém-maduras por planta. O ISN foi calculado pela relação entre a média das medidas do clorofilômetro nas plantas dos tratamentos (MCT e a média das medidas do clorofilômetro nas plantas que receberam a maior dose (MCR, na área de referência (ISN = MCT/MCR x 100. O ISN pode ser um bom indicador do momento de aplicação do adubo nitrogenado e auxiliar no ajuste da dose de N de acordo com a exigência das plantas de pimentão, com a finalidade de aumentar a eficiência de utilização do N aplicado.

Metro Vancouver air quality management plan : progress report

Energy Technology Data Exchange (ETDEWEB)

NONE

2008-10-15

The Greater Vancouver Regional District (GVRD) developed an air quality management plan (AQMP) in 2005 as a means of addressing air quality issues in the region. The plan required progress reports every 2 years as well as a comprehensive review every 5 years. The AQMP established goals to minimize risk to public health from air pollution, improve visibility, and minimize the region's contributions to global climatic change by reducing emissions; implementing local air quality management programs; and enhancing air quality information and public awareness. The AQMP also included a sustainability framework for GVRD's policies and regulations related to regional growth, service delivery and political leadership. Regional strategies for solid waste and liquid waste management were developed in 2008. The sustainability framework has developed 3 priority goals: (1) to reduce diesel particulates by 75 per cent from Metro Vancouver corporate sources by 2012, (2) to be carbon neutral by 2012 excluding solid waste operations, and (3) to reduce regional GHGs by 15 per cent by 2015, and 33 per cent by 2020. Progress updates on regional planning efforts for the AQMP were presented. The report also outlined trends and performance measures used by the GVRD, and discussed changes in air quality issues and priorities that have occurred since the AQMP was adopted in 2005. 1 tab., 8 figs.

Metro Vancouver air quality management plan : progress report

International Nuclear Information System (INIS)

2008-10-01

The Greater Vancouver Regional District (GVRD) developed an air quality management plan (AQMP) in 2005 as a means of addressing air quality issues in the region. The plan required progress reports every 2 years as well as a comprehensive review every 5 years. The AQMP established goals to minimize risk to public health from air pollution, improve visibility, and minimize the region's contributions to global climatic change by reducing emissions; implementing local air quality management programs; and enhancing air quality information and public awareness. The AQMP also included a sustainability framework for GVRD's policies and regulations related to regional growth, service delivery and political leadership. Regional strategies for solid waste and liquid waste management were developed in 2008. The sustainability framework has developed 3 priority goals: (1) to reduce diesel particulates by 75 per cent from Metro Vancouver corporate sources by 2012, (2) to be carbon neutral by 2012 excluding solid waste operations, and (3) to reduce regional GHGs by 15 per cent by 2015, and 33 per cent by 2020. Progress updates on regional planning efforts for the AQMP were presented. The report also outlined trends and performance measures used by the GVRD, and discussed changes in air quality issues and priorities that have occurred since the AQMP was adopted in 2005. 1 tab., 8 figs

Diseño de una fuente conmutada y galvanómetro digital para calibración de respuesta angular de sensores de radiación solar

Directory of Open Access Journals (Sweden)

Nelson Díaz Spencer

2015-12-01

Full Text Available Con el objetivo de determinar el factor de corrección por altura del sol, en los piranómetros - albedómetros empleados en las estaciones actinométricas de Cuba para las mediciones de irradiancia solar, se ha instalado en el Grupo de Óptica Atmosférica de Camagüey un Sistema de Calibración de Respuesta Angular para sensores de radiación solar. Las mediciones realizadas en estas estaciones tributan proveen datos al Servicio de Diagnóstico de Radiación Solar para Cuba. La instalación de este sistema, único de en su tipo en el país, ha sido posible a través de un proyecto de colaboración con el Grupo de Óptica Atmosférica de la Universidad de Valladolid. Para el empleo de este sistema ha sido necesario diseñar y construir tanto, la fuente conmutada de alimentación para la lámpara halógena empleada para las calibraciones, y un galvanómetro digital para registrar los datos generados. El objetivo del presente trabajo es por tanto el diseño, construcción y puesta a punto de funcionamiento de ambos dispositivos. En el caso de la fuente conmutada se estudiaron fuentes con similares prestaciones existentes en el mercado, a partir de la cuales se procedió al diseño electrónico y simulación de los circuitos correspondientes. Finalmente, tanto la fuente conmutada como el galvanómetro digital fueron construidos y actualmente se encuentran en fase de validación. Este último instrumento será replicado para sustituir a sus similares analógicos en el Servicio de Diagnóstico de Radiación Solar para Cuba.

Inferências pedológicas aplicadas ao perímetro irrigado de Custódia, PE

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Oliveira Lindomário Barros de

2002-01-01

Full Text Available O objetivo deste trabalho foi avaliar as propriedades e o comportamento de solos aluviais do perímetro irrigado de Custódia, PE, cujo uso agrícola foi interrompido em virtude de problemas de salinidade/sodicidade. Foram realizadas caracterizações morfológica, física, química e mineralógica de três perfis de solos afetados por sais do referido perímetro irrigado. Os solos foram classificados, de acordo com o Sistema Brasileiro de Classificação de Solos, como Neossolo Flúvico Ta eutrófico solódico, Neossolo Flúvico Sódico salino e Neossolo Flúvico Sódico típico. A estratificação, típica de solos de natureza aluvial, rege o comportamento físico e químico dos solos estudados no sentido vertical. Apesar da presença de minerais que podem contribuir com o processo de salinização/sodificação, tal contribuição deve ser irrisória quando comparada à das águas de rega de baixa qualidade. A reutilização destes solos com agricultura irrigada deve ser precedida do uso de corretivos e da introdução de um eficiente sistema de drenagem que impeça a ascensão do lençol freático e promova a lixiviação do sódio.

Bacteriological and parasitological assessment of currencies obtained in selected markets of Metro Manila

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Glenn Lo Sia Su

2015-06-01

Full Text Available Objective: To assess the bacterial and parasitic contamination of coins and paper bills obtained in selected public markets of Metro Manila. Methods: Money collected from the markets was assessed through culture, microscopy, and biochemical tests. Results: Results showed that the prevalence of bacterial contamination (70.00% was higher than that of parasitic contamination (11.67%. Paper bills were more contaminated with bacteria and parasites compared with coins examined. Money with low denominations had more bacterial and parasitic contamination. Conclusions: Findings indicated that money could be a potential vehicle for the transmission of diseases. There is a need to safeguard oneself from the possible sources of infection that one can get even from money circulating in the market systems.

La estandarización del modelo de programa de mano Metro-Goldwyn-Mayer

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Dr. James F. Willis García-Talavera

2002-01-01

Full Text Available La exhaustiva renovación practicada en el diseño del típico programa de mano Metro-Goldwyn-Mayer, en las postrimerías de la década de los treinta, rompió definitivamente con los tradicionales conceptos anteriores. Esa estandarización de formatos supuso la instauración definitiva del margen blanco, el predominio de los colores vivos y los contrastes acusados, así como la abundancia de primeros planos de los actores protagonistas entre las figuras representadas. Este artículo analiza dicha transformación a través de diferentes teorías sobre la representatividad, simbolismo, separación, valoración y elocuencia de ese peculiar objeto publicitario.

Randomized, controlled trial of an intervention for toddlers with autism: the Early Start Denver Model.

Science.gov (United States)

Dawson, Geraldine; Rogers, Sally; Munson, Jeffrey; Smith, Milani; Winter, Jamie; Greenson, Jessica; Donaldson, Amy; Varley, Jennifer

2010-01-01

To conduct a randomized, controlled trial to evaluate the efficacy of the Early Start Denver Model (ESDM), a comprehensive developmental behavioral intervention, for improving outcomes of toddlers diagnosed with autism spectrum disorder (ASD). Forty-eight children diagnosed with ASD between 18 and 30 months of age were randomly assigned to 1 of 2 groups: (1) ESDM intervention, which is based on developmental and applied behavioral analytic principles and delivered by trained therapists and parents for 2 years; or (2) referral to community providers for intervention commonly available in the community. Compared with children who received community-intervention, children who received ESDM showed significant improvements in IQ, adaptive behavior, and autism diagnosis. Two years after entering intervention, the ESDM group on average improved 17.6 standard score points (1 SD: 15 points) compared with 7.0 points in the comparison group relative to baseline scores. The ESDM group maintained its rate of growth in adaptive behavior compared with a normative sample of typically developing children. In contrast, over the 2-year span, the comparison group showed greater delays in adaptive behavior. Children who received ESDM also were more likely to experience a change in diagnosis from autism to pervasive developmental disorder, not otherwise specified, than the comparison group. This is the first randomized, controlled trial to demonstrate the efficacy of a comprehensive developmental behavioral intervention for toddlers with ASD for improving cognitive and adaptive behavior and reducing severity of ASD diagnosis. Results of this study underscore the importance of early detection of and intervention in autism.

Software-defined optical network for metro-scale geographically distributed data centers.

Science.gov (United States)

Samadi, Payman; Wen, Ke; Xu, Junjie; Bergman, Keren

2016-05-30

The emergence of cloud computing and big data has rapidly increased the deployment of small and mid-sized data centers. Enterprises and cloud providers require an agile network among these data centers to empower application reliability and flexible scalability. We present a software-defined inter data center network to enable on-demand scale out of data centers on a metro-scale optical network. The architecture consists of a combined space/wavelength switching platform and a Software-Defined Networking (SDN) control plane equipped with a wavelength and routing assignment module. It enables establishing transparent and bandwidth-selective connections from L2/L3 switches, on-demand. The architecture is evaluated in a testbed consisting of 3 data centers, 5-25 km apart. We successfully demonstrated end-to-end bulk data transfer and Virtual Machine (VM) migrations across data centers with less than 100 ms connection setup time and close to full link capacity utilization.

Troubleshooting of signal power supply system for Shanghai metro line 7

Science.gov (United States)

Lu, Kaixia; Xiao, Jie

2018-03-01

With the rapid development of Urban Rail Transit Signal Technology, the demand of signal power supply system for signal equipment is higher and higher. The signal intelligent power supply panel is the main component of the urban rail traffic signal power supply system. Whether the intelligent power supply panel working or not is directly related to traffic safety. The maintenance of intelligent signal power supply panel is particularly important. Line 7 of Shanghai Metro adopts PMZG Signal Intelligent Power Supply Panel, which is produced by Beijing Jinyujiaxin Polytron Technologies Inc. Maintenance of power supply system mainly includes routine maintenance and troubleshooting. This article will make clear the routine maintenance contents of PMZG Signal Intelligent Power Supply Panel, and put forward the common fault information and troubleshooting methods of PMZG Signal Intelligent Power Supply Panel. In accordance with the steps of fault handling, the faults can be eliminated in the shortest possible time, and PMZG Signal Intelligent Power Supply Panel can be quickly restored to normal working state.

El profesor reflexivo en la línea 743 de Metro

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Marcelo Ribeiro Silva de Souza

2016-10-01

Full Text Available El presente texto se propone discutir sobre la pertinencia de la perspectiva del profesor crítico-reflexivo en la formación docente y paralelamente señalar las dificultades de su realización en el ejercicio profesional. Desde el punto de vista de su tesitura y fundamentos de base, el texto trae algunos aspectos de la realidad brasileña, sobre todo del campo social y político, donde se considera que los movimientos conservadores, junto con el incremento de una perspectiva neotecnicista en la educación ha dado lugar a la imposibilidad de llevar a cabo una propuesta crítico-reflexiva de la tarea docente. El texto termina con la metáfora de la música Metro, línea 743 del compositor y cantante brasileño Raúl Seixas, que apunta a una sociedad en la que ya no cabe la reflexión ni el pensamiento crítico.

El coeficiente de Hurst y el parámetro a-estable para el análisis de series financieras. Aplicación al mercado cambiario mexicano

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Román Rodríguez Aguilar

2014-01-01

Full Text Available Este trabajo aborda la utilidad de estimar, previo a cualquier análisis, el parámetro de la distribución -estable y el coe - ficiente de Hurst para una serie financiera en periodos de alta volatilidad. Mediante la estimación del coeficiente de Hurst y el parámetro se busca explorar la violación de dos grandes supuestos en la modelación de series financieras: suponer que las series presentan una distribución normal y que los rendi - mientos sucesivos son independientes; asimismo, se analiza el caso del tipo de cambio Fix peso-dólar en México en el perio - do 1992-2011. Uno de los principales resultados es la identi - ficación de características fractales y colas pesadas en la serie para algunos periodos en magnitudes diferenciadas; dichas diferencias se acentúan en periodos de crisis. Caracterizar la serie mediante estos parámetros a través de un índice permitirá mejorar la toma de decisiones sobre el tipo de análisis que es metodológicamente correcto aplicar en una ventana de tiempo específica, ya sea para valuación de activos o para la gestión de riesgos.

Diámetro del conducto cístico y coledocolitiasis secundaria Hospital Nacional Arzobispo Loayza 2015

OpenAIRE

Oré de la Cruz, Ronald Arnaldo

2015-01-01

Introducción: en pacientes con sospecha de colédocolitiasis secundaria entre otras opciones se puede plantear la realización de colangiografía intraoperatoria transcístico para hacer el diagnóstico. Algunos cirujanos optan por no hacer efectivo este procedimiento si consideran que el conducto cístico no está dilatado Objetivo: Conocer la relación entre el diámetro del conducto cístico y la colédocolitiasis secundaria en los pacientes intervenidos quirúrgicamente en el hospital nacional Arz...

NREL/Habitat for Humanity Zero Energy Home: A Cold-Climate Case Study for Affordable Zero Energy Homes

Energy Technology Data Exchange (ETDEWEB)

Norton, P.; Christensen, C.; Hancock, E.; Barker, G.; Reeves, P.

2008-06-01

The design of this 1,280-square-foot, three-bedroom Habitat for Humanity of Metro Denver zero energy home carefully combines envelope efficiency, efficient equipment, appliances and lighting, and passive and active solar features to reach the zero energy goal. The home was designed with an early version (July 22, 2004) of the BEOpt building optimization software; DOE2 and TRNSYS were used to perform additional analysis. This engineering approach was tempered by regular discussions with Habitat construction staff and volunteers. These discussions weighed the applicability of the optimized solutions to the special needs and economics of a Habitat house--moving the design toward simple, easily maintained mechanical systems and volunteer-friendly construction techniques. A data acquisition system was installed in the completed home to monitor its performance.

ESTUDO DE PARÂMETROS MORFOMÉTRICOS DA SUB-BACIA HIDROGRÁFICA DO RIO JACARECICA (SE

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Alex de Sousa Lima

2016-03-01

Full Text Available Dentre as diversas formas de se estudar as bacias hidrográficas uma delas é através dos parâmetros morfométricos, pois dão o suporte ao entendimento de processos dinâmicos atuantes no relevo. Este trabalho visou estudar a morfometria da sub-bacia do rio Jacarecica, Sergipe, Brasil. A base de dados utilizada foi a do Atlas Digital sobre Recursos Hídricos de Sergipe (SEPLAN/SRH, 2004, corrigida. As características morfométricas de área foram obtidas através do software Spring 4.3, enquanto que as outras se deram por meio de equações. A área da drenagem encontrada foi de 503,76 km², extensão de 59 km e orientação NW-SE. A partir dos dados constatou-se que a sub-bacia apresenta-se alongada, apesar de o Índice de Circularidade (Ic apontar para um arredondamento. É sinuoso com drenagem baixa e sua densidade hidrográfica é diretamente afetada pelas Serras Residuais (quartzito. Observou-se que na área a montante das serras há uma deficiência de umidade o que influi na ocupação e utilização do espaço agrário local. Fato que faz com que haja na sub-bacia dois comportamentos diferenciados quanto à distribuição de umidade, controlado pelo fator orográfico. Palavras-chave: Morfometria; Bacia Hidrográfica; Geologia; Geomorfologia.   STUDY OF MORPHOMETRIC PARAMETERS OF THE SUB-BASIN OF THE RIVER JACARECICA (SE   ABSTRACT Among the various forms of studying watersheds of them is through the morphometric parameters because they give support to the understanding of active dynamic processes in relief. This work aimed to study the morphology of the sub-basin of the river Jacarecica, Sergipe, Brazil. The database used was the Digital Atlas of Sergipe on Water Resources (SEPLAN / SRH, 2004, corrected. The morphological characteristics of the area were obtained Spring 4.3 software, while the other is given by equations. The drainage area found was 503.76 square kilometers, extending 59 km and NW-SE orientation. From the data it

Reducing maladaptive behaviors in preschool-aged children with autism spectrum disorder using the early start denver model.

Science.gov (United States)

Fulton, Elizabeth; Eapen, Valsamma; Crnčec, Rudi; Walter, Amelia; Rogers, Sally

2014-01-01

The presence of maladaptive behaviors in young people with autism spectrum disorder (ASD) can significantly limit engagement in treatment programs, as well as compromise future educational and vocational opportunities. This study aimed to explore whether the Early Start Denver Model (ESDM) treatment approach reduced maladaptive behaviors in preschool-aged children with ASD in a community-based long day care setting. The level of maladaptive behavior of 38 children with ASD was rated using an observation-based measure on three occasions during the intervention: on entry, 12 weeks post-entry, and on exit (post-intervention) over an average treatment duration of 11.8 months. Significant reductions were found in children's maladaptive behaviors over the course of the intervention, with 68% of children showing a treatment response by 12 weeks and 79% on exit. This change was accompanied by improvement in children's overall developmental level as assessed by the Mullen scales of early learning, but not by significant changes on the Vineland Adaptive Behavior Scales-II or Social Communication Questionnaire. Replication with a larger sample, control conditions, and additional measures of maladaptive behavior is necessary in order to determine the specific factors underlying these improvements; however, the findings of the present study suggest that the ESDM program may be effective in improving not only core developmental domains, but also decreasing maladaptive behaviors in preschool-aged children with ASD.

Reducing maladaptive behaviors in preschool-aged children with Autism Spectrum Disorder using the Early Start Denver Model

Directory of Open Access Journals (Sweden)

Elizabeth eFulton

2014-05-01

Full Text Available The presence of maladaptive behaviors in young people with Autism Spectrum Disorder (ASD can significantly limit engagement in treatment programs, as well as compromise future educational and vocational opportunities. This study aimed to explore whether the Early Start Denver Model (ESDM treatment approach reduced maladaptive behaviors in preschool-aged children with ASD in a community-based long day care setting. The level of maladaptive behavior of 38 children with ASD was rated using an observation based measure on three occasions during the intervention: on entry, 12 weeks post-entry, and on exit (post-intervention over an average treatment duration of 11.8 months. Significant reductions were found in children’s maladaptive behaviors over the course of the intervention, with 68% of children showing a treatment response by 12 weeks and 79% on exit. This change was accompanied by improvement in children’s overall developmental level as assessed by the Mullen Scales of Early Learning, but not by significant changes on the Vineland Adaptive Behavior Scales-II or Social Communication Questionnaire. Replication with a larger sample, control conditions and additional measures of maladaptive behavior is necessary in order to determine the specific factors underlying these improvements; however, the findings of the present study suggest that the ESDM program may be effective in improving not only core developmental domains, but also decreasing maladaptive behaviors in preschool-aged children.

PARÁMETROS HEMATOLÓGICOS EN POLLUELOS DE PSITÁCIDOS EN CAUTIVERIO DE ORIGEN SILVESTRE

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J. A. Herrera

2013-01-01

Full Text Available El objetivo de este estudio fue describir los parámetros hematológicos en 69 polluelos en cautiverio de origen silvestre, clínicamente sanos, menores de tres meses de edad, en cuatro especies de psitácidos: Pionus senilis (n = 18, Amazona albifrons (n = 15, Amazona autumnalis (n = 25 y Amazona oratrix (n = 11, procedentes de la región central de México. Para determinar dichos parámetros, de cada ejemplar se obtuvieron 500 μl de sangre por punción de la vena braquial. En las cuatro especies citadas, el porcentaje del hematocrito fue de 56,4 ± 3,36; 51 ± 6,52; 47,6 ± 6,47 y 53,8 ± 9,26; el VCM en fl fue de 184,6 ± 13,4; 142,0 ± 25,4; 106,3 ± 11,7 y 162,3 ± 71,9; la cuenta eritrocítica fue de 4,7 ± 2,1 x10 6 /μl; 6,1 ± 8,2 x10 6 /μl; 6,9 ± 1,2 x10 6 /μl y 5,4 ± 1,1 x10 6 /μl; y la cuenta leucocitaria de 3,06 ± 0,15 x10 3 /μl; 3,62 ± 0,24 x10 3 /μl; 4,48 ± 0,36 x10 3 /μl y 3,56 ± 0,71 x10 3 /μl respectivamente para P. senilis , A. albifrons , A. autumnalis y A. oratrix . Se constató tendencia a la heterofilia en A. albifrons y A. oratrix , lo cual puede ser de gran utilidad para un diagnóstico cada vez más preciso en la clínica de aves en cautiverio.

Denver Developmental Test Findings and their Relationship with Sociodemographic Variables in a Large Community Sample of 0-4-Year-Old Children.

Science.gov (United States)

Çelikkiran, Seyhan; Bozkurt, Hasan; Coşkun, Murat

2015-06-01

The aim of this study was to investigate the prevalence of developmental problems and relationship with sociodemographic variables in a community sample of young children. Participants included 1000 children (558 males, 442 females, age range 1-48 months, mean 18.4 months, SD 7.8 months). Children were referred generally by their parents for developmental evaluation and consultation in response to a public announcement in a district area in Istanbul, Turkey. An interview form and the Denver Developmental Screening Test II (DDST) were used for sociodemographic data and developmental evaluation. The χ 2 test and Pearson's correlation test were used for data analysis. Seven hundred forty-one out of 1000 children (74.1%) had normal, 140 (14%) had risky, and 119 (11.9%) had abnormal findings on the DDST results. The probability of abnormal findings on the DDST results was significantly higher in males (p=0.003), the 2-4-year-old group (pone child (p=0.001), consanguineous marriages (p0.05). Sociodemographic factors have a noteworthy impact on development. Determining these factors is important especially during the first years of life.

Ejercicios resistidos, parámetros hematológicos, virológicos y perfil antropométrico en personas que viven con VIH/SIDA

Directory of Open Access Journals (Sweden)

I.K. dos Santos

2016-09-01

Conclusiones: Se concluye que al participar en un programa de ejercicios de fuerza, las personas que viven con VIH/ SIDA obtuvieron mejorías en los parámetros hematológicos, virológicos y en su perfil antropométrico.

Peak bone mass density among residents of metro Manila: A preliminary report

International Nuclear Information System (INIS)

Lim-Abrahan, M.A.; Guanzon, L.V.; Guzman, A.M. de; Villaruel, C.M.; Santos, F.

1998-01-01

Study Objective: To determine the peak bone mass density among residents of Metro Manila using dual X-ray absorptiometry (DEXA). Design: Cross-sectional study. Setting: Philippine General Hospital, a university based tertiary care hospital, and St. Luke's Medical Center, a private tertiary care center. Subjects: Forty five (45) healthy subjects aged 15-50 years old, all current residents of Metro Manila, were randomly chosen from among hospital companions were included in the study. There were 23 females and 22 males, with 3 to 4 subjects for each age range of 5. Methods: Bone mass density measurements on the lumbar spine and the femur using dual X-ray absorptiometry (DPXL Lunar) were taken. The values were also age-matched and matched with that of a young adult based on programmed Caucasian norm provided by Lunar Co. The values were then scattered against age for each sex. Ten (10) cc of blood was also extracted from the patients, with the 5 cc of blood separated for future studies. Parathormone assay and biochemistry examinations were also done. Patents were also interviewed as to their lifestyle, diet, use of contraceptive pill or hormonal replacement treatment, using a Filipino version of the revised questionnaire on the WHO Study on Osteoporosis. Dietary content was estimated using a previous day food recall. Results: The mean weight and height for females were 59.48±16.34 kg and 153.52±5.09 cm respectively, and for males, 58.14±10.06 kg and 162.52±6.75 cm respectively. The mean bone mass density at the L 2 L 4 level for females was 1.12±0.11 g/cm 2 and 0.91±0.11 g/cm 2 at the femur. The highest BMD in both the lumbar spine femoral neck measurements among females was achieved among those aged 30-35 years of age with the lowest BMD occurring between 15-19 and 45-50 years of age in the lumbar spine among female subjects. The highest BMD at the lumbar spine and the femoral neck among males was achieved between the ages 30-35 years of age with the lowest IND

Environmental impact assessment of structural flood mitigation measures by a rapid impact assessment matrix (RIAM) technique: a case study in Metro Manila, Philippines.

Science.gov (United States)

Gilbuena, Romeo; Kawamura, Akira; Medina, Reynaldo; Amaguchi, Hideo; Nakagawa, Naoko; Bui, Duong Du

2013-07-01

In recent decades, the practice of environmental impact assessment (EIA) in the planning processes of infrastructure projects has created significant awareness on the benefits of environmentally sound and sustainable urban development around the world. In the highly urbanized megacities in the Philippines, like Metro Manila, high priority is given by the national government to structural flood mitigation measures (SFMM) due to the persistently high frequency of flood-related disasters, which are exacerbated by the on-going effects of climate change. EIA thus, should be carefully and effectively executed to maximize the potential benefits of the SFMM. The common practice of EIA in the Philippines is generally qualitative and lacks clear methodology in evaluating multi-criteria systems. Thus, this study proposes the use of the rapid impact assessment matrix (RIAM) technique to provide a method that would systematically and quantitatively evaluate the socio-economic and environmental impacts of planned SFMM in Metro Manila. The RIAM technique was slightly modified to fit the requirements of this study. The scale of impact was determined for each perceived impact, and based on the results, the planned SFMM for Metro Manila will likely bring significant benefits; however, significant negative impacts may also likely occur. The proposed modifications were found to be highly compatible with RIAM, and the results of the RIAM analysis provided a clear view of the impacts associated with the implementation of SFMM projects. This may prove to be valuable in the practice of EIA in the Philippines. Copyright © 2013 Elsevier B.V. All rights reserved.

Determinación de parámetros físicos aplicables en el escalamiento de la síntesis de zeolita NaA, a partir de geles aluminosilicatos

OpenAIRE

Carmen M. López; Adriana García; Miguel Ríos; Neyla Rondón; Luis García; Johliny Casanova; Kevin Contreras

2016-01-01

Se estudió el efecto de parámetros físicos que influyen en la preparación de la zeolita NaA, a fin de determinar condiciones favorables para realizar el escalamiento de esta síntesis. Partiendo de una mezcla de síntesis con composición fija y cristalización a 80 °C se estudiaron los siguientes parámetros: orden y velocidad de agregado de las soluciones de partida, velocidad y tiempo de agitación de la mezcla de síntesis, agitación durante la cristalización, tiempo de cristalización y reciclo ...

Parámetros y factores asociados a la dilución interna en yacimientos cubanos de níquel y cobalto

Directory of Open Access Journals (Sweden)

Lázaro Fernández-Martínez

2015-12-01

Full Text Available El propósito de este trabajo fue establecer, en los yacimientos cubanos de níquel y cobalto, los elementos que condicionan e identifican las intercalaciones de baja ley, generadoras de dilución interna, para su posterior separación durante el laboreo minero. La observación y la interpretación de datos geológicos y geoquímicos de pozos y frentes de explotación permitieron diferenciar, según su naturaleza geológica o minera, los distintos elementos que engloban los parámetros y factores vinculados con la dilución interna. Son los parámetros y factores geoquímicos del componente geológico los que mejor caracterizan las intercalaciones a partir de muestras de perforación, mientras que el control de campo es, dentro del componente minero, el que mejor permite identificar (y separar las intercalaciones inmediatamente antes del ingreso de las menas al proceso industrial, en virtud del potencial selectivo de la tecnología minera y de los equipos de arranque actuales.

Performance of the University of Denver Low Turbulence, Airborne Aerosol Inlet in ACE-Asia

Science.gov (United States)

Lafleur, B.; Wilson, J. C.; Seebaugh, W. R.; Gesler, D.; Hilbert, H.; Mullen, J.; Reeves, J. M.

2002-12-01

The University of Denver Low Turbulence Inlet (DULTI) was flown on the NCAR C-130 in ACE-Asia. This inlet delivered large sample flows at velocities of a few meters per second at the exit of the inlet. This flow was slowed from the true air speed of the aircraft (100 to 150 m/s) to a few meters per second in a short diffuser with porous walls. The flow in the diffusing section was laminar. The automatic control system kept the inlet operating at near isokinetic intake velocities and in laminar flow for nearly all the flight time. The DULTI permits super micron particles to be sampled and delivered with high efficiency to the interior of the aircraft where they can be measured or collected. Because most of the air entering the inlet is removed through the porous medium, the sample flow experiences inertial enhancements. Because these enhancements occur in laminar flow, they are calculable using FLUENT. Enhancement factors are defined as the ratio of the number of particles of a given size per unit mass of air in the sample to the number of particles of that size per unit mass of air in the ambient. Experimenters divide measured mixing ratios of the aerosol by the enhancement factor to get the ambient mixing ratio of the particles. The diffuser used in ACE-Asia differed from that used in PELTI (2000), TexAQS2000 (2000) and ITCT (2002). In this poster, the flow parameters measured in the inlet in flight are compared with those calculated from FLUENT. And enhancement factors are presented for flight conditions. The enhancement factors are found to depend upon the Stokes number of particles in the entrance to the inlet and the ratio of the mass flow rate of air removed by suction to the mass flow rate delivered as sample.

Datamart para optimizar la gestión de la información del tráfico ferroviario de la Línea 1 del Metro de Lima, 2015

OpenAIRE

Bardales Chávez, César Luis

2016-01-01

La presente investigación tuvo como objetivo general demostrar que el Datamart mejora la gestión de la información del tráfico ferroviario de la Línea 1 del Metro de Lima en el año 2015. Y el problema general se planteó con la siguiente pregunta: ¿En qué medida el Datamart mejora la gestión de la información del tráfico ferroviario de la Línea 1 del Metro de Lima en el año 2015? El método empleado por la investigación fue el hipotético-deductivo. El diseño fue pre-experiment...

Construção e Caracterização de um Fotômetro Destinado ao Uso de Aulas Experimentais de Química sobre a Lei de Beer-Lambert

Directory of Open Access Journals (Sweden)

Alex Ferreira Moreira

2016-04-01

Full Text Available Este artigo apresenta o desenvolvimento de um fotômetro de baixo custo para aulas experimentais de química, através da medição dos valores de absorbância de determinadas concentrações de substâncias, para a comprovação da lei de Beer-Lambert. A aquisição de sinais do protótipo do fotômetro foi realizada através do uso de um microcontrolador Arduino Uno e o tratamento dos dados é realizado no MS-Excel, através do programa PLX-DAQ que recebe os dados do microcontrolador de forma automática. Os resultados experimentais apresentados demonstram o bom funcionamento do fotômetro construído, em que se utilizam materiais de fácil aquisição no mercado para que possam ser construídos para aulas experimentais, sem a necessidade de utilizar grandes recursos financeiros para a aquisição de equipamentos comerciais.

Diferenças no crescimento e desenvolvimento neuropsicomotor de crianças em centros de educação infantil de Goiânia/GO

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Juliana Campos Rodovalho

2012-03-01

Full Text Available Estudo transversal com objetivos de identificar as diferenças no crescimento e desenvolvimento neuropsicomotor de lactentes e verificar a associação entre os fatores de risco biológicos e ambientais. A amostra foi composta de 45 crianças entre 9 meses a 2 anos de idade que frequentaram creches municipais de Goiânia/GO, em março e abril de 2009. Foram avaliados o crescimento (peso, altura, relação peso/estatura, perímetro cefálico e perímetro torácico e o desenvolvimento pelo Teste de Denver II, além da coleta de dados socioeconômicos, familiares, gestação, partos e neonatais. As meninas apresentaram maior peso em relação peso/estatura e menor risco de atraso no desenvolvimento pessoal-social. A relação peso/estatura sofreu influência de fatores socioeconômicos e o comprimento foi inversamente proporcional ao risco de atraso no desenvolvimento da linguagem. Reforça-se a importância da promoção de estratégias preventivas de possíveis problemas no desenvolvimento e crescimento das crianças juntamente com pais e cuidadores.

Diámetro biparietal en fetos a término en varias razas de perros

OpenAIRE

Cahua U, Jacqueline; Quispe M, Lizeth

2016-01-01

El presente estudio tuvo por objetivo la determinación de la medición ecográfica cuantitativa del diámetro biparietal de fetos a término en perras. Se trabajó con 181 informes ecográficos de varias razas de perras en gestación cuyos fetos tenían menos de 210 latidos por minuto, y que fueron examinados en el consultorio de ecografía de la Clínica de Animales Menores de la Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos, Lima, Perú, entre los años 2000-2014. The pr...

Variación de parámetros de calidad del grano y aceite de girasol almacenado a diferentes humedades relativas

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Motta, A.

1991-10-01

Full Text Available Commercial samples of sunflower were exposed to different relative humidities (75%, 80%, 84%, 92% and 98% for two months. In addition to the kinetic rehydratation in standard and treated samples, the following parameters were measured: humidity, fat content, germinative power, acidity index, iodine number and fatty acids composition. Fatty acids composition, iodine number and fat content, did not change significantly. Only the acidity index and the germinative power were an index of the damage.

Muestras comerciales de girasol fueron sometidas a distintas humedades relativas ambiente (75%, 80%, 84%, 92% y 98% durante dos meses. Además de la rehidratación cinética, en las muestras testigos y tratadas, se midieron los siguientes parámetros: humedad, riqueza grasa, poder germinativo, índice de acidez, índice de iodo y composición en ácidos grasos. La composición en ácidos grasos, el índice de iodo y la riqueza grasa no sufrieron variaciones significativas. Los parámetros más sensibles que pusieron en evidencia el deterioro fueron el índice de acidez y el poder germinativo.

Influencia de los parámetros de proyección por plasma atmosférico en recubrimientos de YSZ obtenidos a partir de polvos micro y nanoestructurados

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Carpio, P.

2014-08-01

Full Text Available In the present work, the influence of atmospheric plasma spray (APS parameters on the deposition of two commercial YSZ feedstocks, one conventional and one nanostrcutured, has been studied. First the study focused on how the variability of the different parameters affects the particle behaviour during spraying. For this purpose, a sensor which enables to measure the particle temperature and velocity inside the plasma was used. Once the spraying parameters influence was known, both powders were deposited by APS onto stainless steel substrates modifying the higher influencing parameters. These coatings have been characterised and the influence of the particle behaviour on the coating microstructure and properties has been analysed. This work concludes the spraying parameters variation affects on the particle velocity and temperature inside the plasma plume and this behaviour influences, in turn but in a different way, on the final coating characteristics when using different powders (micro- and nanostructured.En el presente trabajo se ha estudiado la influencia de cada uno de los parámetros de la proyección térmica por plasma atmosférico (atmospheric plasma spraying, APS en la deposición de dos polvos comerciales de YSZ, uno convencional y otro nanoestructurado. En primer lugar se ha estudiado cómo afecta la variabilidad de los diferentes parámetros en el comportamiento de las partículas durante la proyección. Para tal fin, se ha utilizado un sensor que permite determinar la temperatura y la velocidad de las partículas en el interior del plasma. Una vez conocido cómo influyen los parámetros de proyección se han depositado ambos polvos sobre sustratos de acero inoxidable mediante APS modificando aquellos parámetros con un mayor impacto en el comportamiento de las partículas. Estos recubrimientos han sido caracterizados y se ha analizado la influencia del comportamiento de las partículas durante la proyección en la microestructura y

A system's view of metro and regional optical networks

Science.gov (United States)

Lam, Cedric F.; Way, Winston I.

2009-01-01

Developments in fiber optic communications have been rejuvenated after the glut of the overcapacity at the turn of the century. The boom of video-centric network applications finally resulted in another wave of vast build-outs of broadband access networks such as FTTH, DOCSIS 3.0 and WI-FI systems, which in turn also drove up the bandwidth demands in metro and regional WDM networks. These new developments have rekindled research interests on technologies not only to meet the surging demand, but also to upgrade legacy network infrastructures in an evolutionary manner without disrupting existing services and incurring significant capital penalties. Standard bodies such as IEEE, ITU and OIF have formed task forces to ratify 100Gb/s interface standards. Thanks to the seemingly unlimited bandwidth in single-mode fibers, advances in optical networks has traditionally been fueled by more capable physical components such as more powerful laser, cleaner and wider bandwidth optical amplifier, faster modulator and photo-detectors, etc. In the meanwhile, the mainstream modulation technique for fiber optic communication systems has remained the most rudimentary form of on-off keying (OOK) and direct power detection for a very long period of time because spectral efficiency had never been a concern. This scenario, however, is no longer valid as demand for bandwidth is pushing the limit of current of current WDM technologies. In terms of spectral use, all the 100-GHz ITU grids in the C-band have been populated with 10Gb/s wavelengths in most of the WDM transport networks, and we are exhausting the power and bandwidth offered on existing fiber plant EDFAs. Beyond 10Gb/s, increasing the transmission to 40Gb/s by brute force OOK approach incurs significant penalties due to chromatic and polarization mode dispersion. With conventional modulation schemes, transmission impairments at 40Gb/s speed and above already become such difficult challenges that the efforts to manage these

PARÁMETROS DE HUMEDAD DE 63 MADERAS LATIFOLIADAS MEXICANAS EN FUNCIÓN DE SU DENSIDAD BÁSICA

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J. C. Tamarit-Urias

2003-01-01

Full Text Available La madera es un material higroscópico ya que tiene la propiedad de aumentar o disminuir su contenido de humedad en relación directa con los cambios de humedad relativa, es anisotrópica por que sus cambiosdimensionales son diferentes según sea ladirección tangencial, radial o longitudinal. Sus propiedades son afectadas debido a cambios en su contenido de humedad. Conocer y entender los parámetros de humedad es importante en los procesos de secado e impregnación para obtener una materia prima de calidad en la elaboración de productos. El objetivo del presente trabajo fue determinar los modelos que interpretan el comportamiento de 63 maderas latifoliadas mexicanas respecto a las correlaciones entre la densidad básica (DB y los parámetros de humedad, siendo estos el punto de saturación de la fibra (PSF, contenido de humedad libre (CHL y máximo contenido de humedad (MCH. En un rango de DB de 1.05 a 0.29 g·cm-3, se encontró que el PSF estimado varía del 13 a 38 %, en tanto que el ajustado tiene un comportamiento logarítmico y varía del 15 a 35 %. El CHL estimado varía del 9 a 243 % y el ajustado presenta un comportamiento exponencial variando del 14 a 238 %. El MCH estimado varía del 29 a 279 % y el ajustado exhibió un comportamiento exponencial variando del 28 a 250 %. Estos mismos parámetros de humedad expresados en l·m-3 presentaron el siguiente comportamiento el PSF estimado varía de 219 a 86 l·m-3, en tanto que el ajustado tiene un comportamiento polinomial de tercer grado y varía de 215 a 96 l·m-3. El CHL estimado varía de 94 a 707 l·m-3 en tanto que el ajustado presenta un comportamiento lineal y varía de 128 a 699 l·m-3. Por su parte el MCH estimado varía del 313 a 810 l·m-3, mientras que el MCH ajustado exhibió un comportamiento lineal con el mismo intervalo de variación.

EFEITOS DO EXTRATO DE Eugenia uniflora SOBRE OS PARÂMETROS HEMATOLÓGICOS E PRESSÃO ARTERIAL DE RATOS HIPERTENSOS

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Noemia Aparecida Partelli Mariani

2017-01-01

Full Text Available A Eugenia uniflora é uma planta amplamente encontrada no Brasil, utilizada popularmente para tratar diversos distúrbios. O objetivo deste estudo foi avaliar os efeitos do extrato de suas folhas sobre parâmetros hematológicos e pressão arterial de ratos espontaneamente hipertensos (SHR. Os animais foram divididos em grupos controle e tratados com extrato nas doses de 100mg/kg e 200mg/kg. O tratamento foi diário, via gavagem, por 28 dias. O sangue dos animais foi coletado semanalmente, para a contagem global e diferencial de leucócitos e ao final do tratamento, os animais foram anestesiados e foi realizada cateterização da artéria carótida para medida de pressão arterial sistólica, diastólica, média e frequência cardíaca. O extrato não alterou os parâmetros hematológicos e não reduziu a frequência cardíaca dos SHR, porém observou-se uma tendência à redução. Ao passo que, diminuiu a pressão arterial sistólica, diastólica e média, sugerindo um efeito anti-hipertensivo.

77 FR 62429 - Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures...

Science.gov (United States)

2012-10-15

...), Amdt 25 Denver, CO, Centennial, NDB RWY 35R, Amdt 10B, CANCELED Denver, CO, Centennial, RNAV (GPS) RWY 17L, Orig Denver, CO, Centennial, RNAV (GPS) RWY 28, Amdt 1 Denver, CO, Centennial, RNAV (GPS) Y RWY 35R, Amdt 1 Denver, CO, Centennial, RNAV (GPS) Z RWY 35R, Orig Denver, CO, Denver Intl, ILS OR LOC RWY...

Parâmetros de indenização no acidente do trabalho ou doença ocupacional

OpenAIRE

Tagliari, Rômulo Augusto

2013-01-01

O presente trabalho pretende tratar de parâmetros de indenização decorrentes de acidente do trabalho ou doença ocupacional, abordando principalmente decisões judiciais e doutrina referente ao tema. Para tanto, faz-se uma breve análise do instituto da responsabilidade civil, discorrendo-se quanto aos seus elementos e hipóteses em que é caracterizada de maneira geral. Após, examina-se a infortunística, demonstrando as características do acidente do trabalho, de forma a esclarecer a sua caracter...

Krigagem e inverso do quadrado da distância para interpolação dos parâmetros da equação de chuvas intensas

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Mello C. R.

2003-01-01

Full Text Available Em projetos de obras hidráulicas, é necessária a estimativa da chuva intensa adequada à realidade técnico-financeira dos projetos, para posterior cálculo de vazões máximas. O uso da equação de chuvas intensas é a forma mais usual para estimativa da chuva de projeto. No entanto, há dificuldade em obtê-la para locais desprovidos de dados pluviométricos, o que pode ser superado mediante técnicas computacionais para a espacialização dos seus parâmetros. Para isto, pode-se trabalhar com procedimentos estatísticos para interpolação dos parâmetros com base em estações meteorológicas vizinhas ao local. Objetivou-se, neste trabalho, comparar os dois procedimentos estatísticos mais exatos, conforme já constatado em outras aplicações físicas, que são a krigagem (interpolador geoestatístico e o inverso do quadrado da distância, para interpolação dos parâmetros da equação de chuvas intensas. Utilizaram-se 140 estações meteorológicas do estado de São Paulo, as quais dispõem da respectiva equação de chuvas intensas estimada com base em dados pluviométricos, consideradas como ideais. Destas, 126 foram utilizadas para estudo da dependência espacial dos parâmetros e 14 para comparação de erros nas estimativas da chuva intensa. Constatou-se que ambos os métodos apresentaram boa precisão, mas a krigagem produziu menores erros médios para 11 estações, verificando-se melhorias consideráveis em especial para tempos de retorno e tempos de duração da precipitação usuais em projetos em pequenas bacias hidrográficas, podendo-se sugerir este método como o mais adequado.

PENGARUH PENGGUNAAN COOPERATIVE LEARNING TIPE THINK-PAIR-SHARE (TPS TERHADAP HASIL BELAJAR KEWIRAUSAHAAN SISWA KELAS X SEMESTER GENAP SMK KARTIKATAMA 1 METRO T.P 2015/2016

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Safitri Kurnia Lestari

2016-05-01

Full Text Available Metode cooperative learning tipe think-pair-share  merupakan model pembelajaran yang melibatkan peserta didik secara maksimal dalam kegiatan pembelajaran mulai dari merencanakan topik-topik yang akan dipelajari, bagaimana mendiskusikan topik suatu materi, hingga melakukan presentasi kelompok dan evaluasi. Adapun yang menjadi masalah dalam penelitian ini yaitu “ Masih banyak peserta didik yang belum tuntas hasil belajar pada mata pelajaran  kewirausahaan  peserta didik kelas X semester genap  SMK Kartikatama 1 Metro  tahun pelajaran 2015/2016”. Adapun tujuan dalam penelitian ini adalah untuk mengetahui pengatuh penggunaan model Cooperative Learning Tipe Think-Pair-Share(TPS terhadap hasil belajar kewirausahaan pada kelas X semester genap SMK Kartikatama 1 metro tahun pelajaran 2015/2016. Maka hipotesis dalam penelitian ini adalah sebagai berikut: “Ada pengaruh positif pengunaan model Cooperative Learning TipeThink-Pair-Share  terhadap hasil belajar  kewirausahaan  peserta didik kelas X semester genap  SMK Kartikatama 1 Metro  tahun pelajaran 2015/2016”. Populasi dalam penelitian ini wilayah yang sebanyak 3 kelas dengan jumlah 71 peserta didik. Sampel dalam penelitian ini adalah kelas X AK 1 yang berjumlah 24sebagai kelas eksperimen dan kelas X AK 2yang berjumlah 21 sebagai kelas kontrol. Setelah dianalisis hasil penelitian dapat disimpulkan bahwa dari analisis perhitungan nilai thitung>ttabel dapat dilihat pada daftar G, pada daftar signifikan 5% yaitu 9,10>1,72. Dan pada taraf signifikan 1% yaitu 9,10>2,51. Dengan demikian hipotesisnya berbunyi bahwa : ada pengaruh positip penggunaan Cooperative Learning Tipe Think-Pair-Share (TPS dapat meningkatkan hasil belajar kewirausahaan siswa kelas X AK 1 semester genap SMK Kartikatama 1 metro tahun pelajaran 2015/2016 pada pokok bahasan mengelola konflik. Siswa yang dinyatakan tuntas dengan KKM (75 setelah treatment sebanyak 14 siswa atau sebesar 58,33% dan siswa yang dinyatakan belum

Determination of peak bone mass density and composition in low income urban residents of metro Manila using isotope techniques

International Nuclear Information System (INIS)

Lim-Abrahan, M.A.

2000-01-01

The work described in this paper is a continuation of the first phase of the study, which is the determination of the peak bone mass density among residents of Metro Manila using dual energy x-ray absorptiometry. However, it also aims to correlate sex, body mass index, nutritional factors, physical activity and lifestyle to peak bone mass and thus attempts to explain any discrepancies in peak bone mass density to that seen in other countries

Contribuição dos parâmetros biomecânicos para o desempenho de saltos verticais de jogadoras de basquetebol Contribución de los parámetros biomecánicos para el desempeño en saltos verticales de jugadoras de baloncesto Contribution of biomechanical parameters to vertical jump performance in basketball players

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Rodrigo Maciel Andrade

2012-06-01

Full Text Available O objetivo do presente estudo foi investigar a contribuição dos parâmetros biomecânicos para o desempenho do salto vertical com contramovimento (SV e SV precedido de corrida (SVcorrida em 19 jogadoras da seleção brasileira adulta de basquetebol feminino (26,2 ± 4,7 anos; 1,81 ± 0,07 m; 75,6 ± 12,6 kg; 20,4 ± 6,0% de gordura. Foram considerados os picos de força passiva (PFPa e propulsão (PFP, tempo para alcance dos picos de força passiva (TPFPa e propulsão (TPFP, "load rate" (LR, taxa de desenvolvimento de força (TDF, tempo de fase excêntrica (Texc e concêntrica (Tcon. A análise de componentes principais revelou que 50,86% da altura de SV foi explicada por PFPa, TPFPa, LR, Texc e TPFP, e que 43,28% de SVcorrida foi explicada por PFPa, TPFPa, LR, PFP. Esses resultados sugerem que parâmetros temporais parecem contribuir de maneira mais significativa para o desempenho de salto, porém diferentes tipos de salto podem demandar comportamentos distintos de parâmetros biomecânicos.El objetivo de este estudio fue investigar la contribución de parámetros biomecánicos para el rendimiento de salto vertical con contra movimiento (SV e SV precedido de carrera (SVcarrera en diecinueve jugadoras de baloncesto de la selección brasileña femenina adultas (26,2 ± 4,7 años; 1,81 ± 0,07 m; 75,6 ± 12,6 kg; 20,4 ± 6,0% de grasa. Fueran considerados el pico de fuerza pasiva (PFPa y propulsión (PFP, tiempo para llegar a picos de fuerza pasiva (TPFPa y propulsión (TPFP, la tasa de carga (LR, tasa de desarrollo de fuerza (TDF, tiempo de la fase excéntrica (Texc y concéntrica (Tcon. Las análisis de los componentes principales mostraron que 50,86% da la altura de SV fue explicada por PFPa, TPFPa, LR, Texc y TPFP, y que 43,28% de SVcarrera fue explicada por PFPa, TPFPa, LR, PFP. Los resultados sugieren parámetros temporales parecen contribuir más significativamente para rendimiento del salto pero, diferentes tipos del salto pueden

INFLUÊNCIA DE PARÂMETROS GEOMÉTRICOS NO COMPORTAMENTO DA LIGAÇÃO MISTA VIGA-PILAR PREENCHIDO COM CHAPA PASSANTE

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Silvana De Nardin

2016-11-01

Full Text Available RESUMO: Neste artigo é apresentado o desenvolvimento de um modelo numérico de ligação mista viga-pilar preenchido com chapa passante. Além do desenvolvimento do modelo, foram realizadas análises paramétricas com objetivo de avaliar a influência de parâmetros geométricos tais como taxa de armadura da laje, perfis de aço da viga mista e diâmetro dos parafusos. O estudo deu-se por meio das seguintes etapas: desenvolvimento de modelo numérico validado com base em resultados experimentais encontrados na literatura e posterior análise paramétrica. Para a modelagem numérica utilizou-se o pacote computacional Ansys® por meio do método dos elementos finitos. São apresentadas as principais diretrizes adotadas na escolha dos elementos finitos, propriedades dos materiais e relações constitutivas, condições de contorno e vinculações, carregamentos e outros aspectos referentes à modelagem numérica. Os resultados mostraram que dentre os parâmetros analisados, a taxa de armadura resultou no parâmetro mais significativo para a capacidade resistente da ligação mista. As principais contribuições do estudo compreendem, a apresentação da influência de determinados fatores na capacidade resistente da ligação mista viga-pilar com chapa passante, bem como a comprovação da eficácia da metodologia de estudo de ligações por meio de análises numéricas. ABSTRACT: In this paper is presented the development of a numerical model of a composite connection connecting a composite beam to a concrete filled steel tube column using a through steel plate. In addition to the development of the model, parametric analyses were performed in order to evaluate the influence of geometric parameters such as reinforcement ratio of slab, I-steel sections of composite beam and diameter of the bolts. The study came about through the following steps: development of numerical model validated by comparison with experimental results and after parametric

Parâmetros genéticos da curva de produção de ovos de uma linha fêmea de frango de corte Evaluation of posture rating curves of a female line of broilers

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Valdecy Aparecida Rocha Cruz

2013-03-01

Full Text Available Objetivou-se com este trabalho estimar os parâmetros genéticos e fenotípicos dos parâmetros da curva de produção de ovos, pelo o modelo de polinômios segmentados ("x p"- idade das aves ao pico de postura, "P"- nível de produção no pico, "s" - taxa de decréscimo semanal na produção de ovos após o pico e "t" - tempo entre o início da postura e o pico de produção de ovos. Foram utilizados dados da produção de ovos semanal da 25ª até 64ª semanas de idade, provenientes de 2.398 matrizes de uma linhagem de frangos de corte. A estimação dos componentes de covariâncias, herdabilidade e correlações para esses parâmetros da curva de postura foram obtidas por máxima verossimilhança restrita. As tendências genéticas foram estimadas com as médias dos valores genéticos dos parâmetros da curva em função do ano de nascimento das matrizes. As médias das herdabilidades foram de baixa a média magnitudes, 0,25 (x p, 0,18 (P, 0,17 (s e 0,10 (t. As correlações genéticas entre o parâmetro t e os demais parâmetros da curva foram positivas, variando de 0,21 até 1,00, sendo menor entre t e s e maior entre os parâmetros x p e t. Entre os parâmetros x p e P, a correlação também foi positiva, de magnitude média (0,39. As correlações foram negativas entre os parâmetros s e x p e s e P, apresentando-se menor entre s e x p (-0,17 e maior entre s e P (-0,91. As tendências genéticas encontradas para os parâmetros indicaram uma redução no tempo entre o início e pico de produção e idade ao pico de postura. O nível de produção apresentou uma queda no valor genético ao longo do período avaliado. Pode-se observar possível ganho genético para os parâmetros da curva de produção de ovos, contudo, deve-se atentar para as correlações genéticas positivas entre os parâmetro x p e P, o que pode levar a um aumento do nível de produção e a um aumento na idade ao pico de produção. O mesmo caso acontece com os parâmetros

Avaliação dos parâmetros gasométricos dos traumatizados durante o atendimento pré-hospitalar móvel

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Ricardo Alessandro Teixeira Gonsaga

Full Text Available OBJETIVO: avaliar diferenças gasométricas dos pacientes traumatizados graves que necessitaram de intubação orotraqueal no atendimento pré-hospitalar. MÉTODOS: foram colhidas amostras de sangue dos pacientes que necessitaram de manejo de via aérea no início do atendimento pré-hospitalar e ao dar entrada na Unidade de Urgência. Foram analisados: pH, pressão arterial de CO2 (PaCO2, pressão arterial de O2 (PaO2, excesso de base (BE, saturação da hemoglobina por O2 (satO2 e a relação PaO2 e a fração inspirada de O2 (PaO2/FiO2. RESULTADOS: houve significância estatística entre as diferenças das médias entre os dados coletados no local do sinistro e na entrada da UUE na Frequência respiratória (p=0,0181, na Escala de Coma de Glasgow (p=0,0084, na pressão parcial arterial de oxigênio (PaO2; p<0,0001 e na saturação da hemoglobina pelo oxigênio (p=0,0018. CONCLUSÃO: a intubação orotraqueal altera os parâmetros PaO2 e saturação de oxigênio pela hemoglobina. Não houve diferença nos parâmetros metabólicos (pH, Bicarbonato e excesso de base. Na análise dos parâmetros hemogasométricos dos sobreviventes e não sobreviventes observou-se diferença estatística entre o PaO2, saturação de oxigênio pela hemoglobina e excesso de base.

Parâmetros hematológicos e alterações histopatológicas em bijupirá (Rachycentron canadum Linnaeus, 1766 com amyloodiniose

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Bartira Guerra-Santos

2012-11-01

Full Text Available O objetivo do trabalho foi descrever os parâmetros hematológicos e as alterações histopatológicas em bijupirás infectados por Amyloodinium ocellatum. Um grupo de 27 peixes foi anestesiado para coleta de amostras de sangue e eutanasiados para coleta de muco e fragmentos de tecido cutâneo e branquial. Foram avaliadas a prevalência e a intensidade parasitária da infecção, assim como os valores de parâmetros hematológicos e alterações histopatológicas. A prevalência parasitária nas brânquias foi de 100% e no muco foi de 80,8% e as intensidades parasitárias médias foram de 683,5 nas brânquias, e 67,1 no muco cutâneo. Os valores médios dos parâmetros hematológicos foram: eritrócitos 4,3x10(6µL; VG 26%; VGM 64,2fL; proteína plasmática 5,8mg/dL; trombócitos 5,2 x10³/µL e leucócitos 3,6 x10³/µL. Além disso, foram verificadas hiperplasia do epitélio respiratório acompanhada de fusão lamelar, descolamento do epitélio, dilatação do seio venoso, formação de aneurisma, ruptura do epitélio lamelar, hemorragia, necrose, reação inflamatória linfocítica. O parasito foi observado nas lamelas branquiais, o VMA variou do grau discreto ao severo e o IAH foi de 76,8. A pesquisa assume importância por se tratar dos primeiros estudos em Rachycentron canadum, um peixe que se destaca com potencial ao cultivo.

Utilização da função pearson tipo V, Weibull e hiperbólica para modelagem da distribuição de diâmetros

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Daniel Henrique Breda Binoti

2013-09-01

Full Text Available Objetivou-se neste estudo avaliar a eficiência da função log-Pearson tipo V para a descrição da estrutura diamétrica de povoamentos equiâneos de eucaliptos, bem como propor um modelo de distribuição diamétrica utilizando essa função. A modelagem realizada pela função log-Pearson tipo V foi comparada com a modelagem realizada com a função Weibull e hiperbólica. Para isso utilizou-se dados de parcelas permanentes de eucalipto, localizadas na região centro oeste do estado de Minas Gerais. A função Pearson tipo V foi testada em três diferentes configurações, com três e dois parâmetros, e tendo o parâmetro de locação substituído pelo diâmetro mínimo da parcela. A aderência das funções aos dados foi comprovada pela aplicação do teste Kolmogorov-Sminorv (K-S. Todos os ajustes apresentaram aderência aos dados pelo teste KS. As funções Weibull e hiperbólica apresentaram desempenho superior ao demonstrado pela função Pearson tipo V.

Evaluation of a Trapezoidal Predictive Controller for a Four-Wire Active Power Filter for Utility Equipment of Metro Railway, Power-Land Substations

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Sergio Salas-Duarte

2016-01-01

Full Text Available The realization of an improved predictive current controller based on a trapezoidal model is described, and the impact of this technique is assessed on the performance of a 2 kW, 21.6 kHz, four-wire, Active Power Filter for utility equipment of Metro Railway, Power-Land Substations. The operation of the trapezoidal predictive current controller is contrasted with that of a typical predictive control technique, based on a single Euler approximation, which has demonstrated generation of high-quality line currents, each using a 400 V DC link to improve the power quality of an unbalanced nonlinear load of Metro Railway. The results show that the supply current waveforms become virtually sinusoidal waves, reducing the current ripple by 50% and improving its power factor from 0.8 to 0.989 when the active filter is operated with a 1.6 kW load. The principle of operation of the trapezoidal predictive controller is analysed together with a description of its practical development, showing experimental results obtained with a 2 kW prototype.

Allocation of spectral and spatial modes in multidimensional metro-access optical networks

Science.gov (United States)

Gao, Wenbo; Cvijetic, Milorad

2018-04-01

Introduction of spatial division multiplexing (SDM) has added a new dimension in an effort to increase optical fiber channel capacity. At the same time, it can also be explored as an advanced optical networking tool. In this paper, we have investigated the resource allocation to end-users in multidimensional networking structure with plurality of spectral and spatial modes actively deployed in different networking segments. This presents a more comprehensive method as compared to the common practice where the segments of optical network are analyzed independently since the interaction between network hierarchies is included into consideration. We explored the possible transparency from the metro/core network to the optical access network, analyzed the potential bottlenecks from the network architecture perspective, and identified an optimized network structure. In our considerations, the viability of optical grooming through the entire hierarchical all-optical network is investigated by evaluating the effective utilization and spectral efficiency of the network architecture.

Geology beneath and beside the notorious Payatas open dump, Metro Manila, Philippines

Science.gov (United States)

Tomarong, C.; Arcilla, C.; de Sales, L.; Chua, S.; Garcia, E.; Pamintuan, G.

2003-04-01

With a minimum of 6000 tonnes/day municipal waste output, and with NO existing operational sanitary landfill and with incineration illegal, Metro Manila has a very serious solid waste disposal problem. Unsorted municipal waste are being piled in open dumps, the most notorious of which is the Payatas open dump. A recent, tragic garbage-slide in this open dump caused dozens of deaths, news of which were broadcast internationally. Political expediency laced with a lot of corruption, rather than sound science, was the main basis for selecting this site as an open dump. As an example, this dump is situated plastics. Several cross-sections cut across the dump show that the side slopes of the dump are on the average steeper than the pre-dump slopes. The “bedrock” of the Payatas dump are conglomerate members of the Pleistocene volcaniclastic Guadualupe Formation. Studies are still to be done on the extent of pollution on surface and groundwater in the Payatas environs.

Análisis de los parámetros biomecánicos de la economía de carrera en atletas de fondo a velocidades competitivas

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Pedro Ángel Latorre Román

2006-06-01

Full Text Available La mayor parte de los estudios centrados en el análisis de la cinemática de carrera se han basado en protocolos de laboratorio donde se ha utilizado calzado no específico y a velocidades reducidas. Los estereotipos técnicos analizados en estas circunstancias pueden diferir de lo que ocurre en competición, y las posibles variaciones cinemáticas relacionadas con la fatiga, muchas veces se han automatizado en las sesiones de entrenamiento, incluso el estudio de la económica y técnica de carrera en competición, podría estar influenciada por planteamientos tácticos. Las relaciones entre la mecánica y la economía de carrera presentan interrogantes. Numerosos autores han demostrado que la economía de carrera es uno de los determinantes del rendimiento en trabajos de resistencia. En este estudio hemos analizado los parámetros cinemáticos de corredores de fondo a velocidades competitivas en condiciones de fatiga y su relación con la economía de carrera. Para la cuantificación de los factores de análisis se han empleado técnicas fotogramétricas en vídeo (2D. La filmación se realizó desde una visión sagital y posterior. Por medio del sistema Cyborg 3.0 se computerizaron y digitalizaron las imágenes. Consideramos como factores de producto la fatiga, estimada mediante la frecuencia cardiaca, la temperatura timpánica y la percepción subjetiva del esfuerzo, y la velocidad de carrera. Como factores de proceso, variados parámetros biomecánicos (posteriores y laterales, diferenciados en factores de cinemática angular, temporal, distancias, velocidades y parámetros observacionales. En una pista de atletismo y por la calle uno cada deportista recorrió cinco veces la distancia de 2.000 metros ó 1.000 metros dependiendo de la “adherencia” del atleta con cada tipo de entrenamiento, entre cada repetición recuperaron dos y un minuto (andando respectivamente. Los resultados señalan que los atletas han expresado economía de

Mid-upper arm circumference in pregnant women and its relation to birth weight Perímetro braquial da gestante e sua relação com o peso ao nascer

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Anamaría E. Ricalde

1998-04-01

Full Text Available OBJECTIVE: In order to determine the relationship between some maternal anthropometric indicators and birth weight, crown-heel length and newborn's head circumference, 92 pregnant women were followed through at the prenatal service of hospital in S. Paulo, Brazil. MATERIAL AND METHOD: The following variables were established for the mother: weight, height, mid-upper arm circumference, pre-pregnancy weight, gestational weight gain and Quetelet's index. For the newborn the following variables were recorded: birth weight, crown-heel length, head circumference and gestational age by Dubowitz's method. RESULTS: Significant associations were noted between gestational age and newborn variables. In addition, maternal mid-arm circumference (MUAC and pre-pregnancy weight were found to be positively correlated to birth weight (r=0.399; r=0.378, respectively. The multivariate linear regression shows that gestational age, mother's arm circumference and pre-pregnancy weight continue to be significant predictors of birth weight. On the other hand, only gestational age and mother's age was associated with crown-heel length. Similarly MUAC was significantly associated with crown-heel length (r= 0.306; P=0.0030. CONCLUSION: Maternal mid-upper arm circumference is a potential indicator of maternal nutritional status. It could be used in association with other anthropometric measurements, instead of pre-pregnancy weight, as an alternative indicator to assess women at risk of poor pregnancy outcome.OBJETIVO: Para determinar a relação entre os indicadores antropométricos maternos e o peso, a estatura e o perímetro cefálico do recém-nascido, foi realizado um estudo de seguimento de noventa e duas gestantes, inscritas no serviço de pré-natal de um hospital de São Paulo, Brasil. MATERIAL E MÉTODO: Foram estudadas as seguintes variáveis na mãe: peso, estatura, perímetro braquial, peso pré-gestacional, ganho de peso, idade e Índice de Quetelet. Nos rec

Software para el cálculo de parámetros en cribas vibratorias de separación bajo el criterio de la velocidad límite de las partículas

OpenAIRE

Arturo Martínez Rodríguez

2009-01-01

Se presenta el manual de usuario del software "CRIBAS" para el cálculo de los principales arámetros de las cribas vibratorias empleadas para la limpieza o clasificación de productos agrícolas. El software posibilita calcular los parámetros adecuados de las cribas vibratorias de manera tal que las partículas que deben pasar a través de los agujeros de la superficie de la criba, no sobrepasen, en su movimiento de avance a lo largo de la criba, la dimensión de dichos agujeros, lo cual se garan...

EL TRABAJO INFORMAL DE LOS VAGONEROS EN EL METRO DE LA CIUDAD DE MÉXICO

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Eloísa Ramírez Cárdenas

2016-05-01

Full Text Available This paper focuses on analysis of the decisions made by peddlers to continue working on the streets, specifically selling apocryphal items. Those decisions are based on the working conditions in the informal sector. To collect data, the participant observation was used, as buyers; 8 interviews with vendors, aged over 25, were conducted. These sellers are engaged in the sale of pirate compact discs (CDs inside the wagons of the Sistema de Transporte Colectivo (STC Metro Line 8 in Mexico City. The results show that economic income, financial compensation, the working day and the satisfaction of working in the informal sector makes those people keep on working within the framework of informality.

Midiendo el diámetro de la Tierra

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Sierra Porta, S.

2008-09-01

Full Text Available De distintas maneras se han ingeniado interesantes procedimientos para medir el radio de la tierra. Aquí se expone uno con la utilización de muchas técnicas sea formales o no para tal fín. El procedimiento es lo suficientemente sencillo como para que cualquier aficionado pueda repetirlo. No es un nuevo método, pero puede verse como pequeñas variaciones al mismo pudieran dar menos o más errores. El método precisa de tres piedras, una cuerda y una regla, de acuerdo con sus indicaciones, se debe contar también con un cerro desde donde podamos divisar el horizonte desde un lugar despejado en dos direcciones opuestas. La altura ideal de esta colina o promontorio seria de 30 a 300 metros sobre el nivel del mar (fácilmente podría ser desde un edificio; desde ella se divisara claramente una zona despejada. La motivación principal es proporcionar un marco para que los estudiantes en clase diserten acerca de la posibilidad de medier el tamaño de la tierra con argumentos muy sencillos y al alcance de todos. Se estimula de formulación de proyectos para investigación en el aula. Además se considera, en concordancia con las reformas de la educación y la globalización de las ciencias y los conocimientos, como estas actividades pueden acoger distintas disciplinas para un análisis óptimo de los resultados.

Qualidade da irrigação controlada por tensiômetros em pivô central Quality of center pivot irrigation controlled by tensiometers

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A.M. Saad

1994-12-01

Full Text Available A qualidade da irrigação foi avaliada durante a safra de inverno do ano de 1988 na cultura do feijoeiro (Phaseolus vulgaris L., irrigado por pivô central, em área de ocorrência de Latossolo Roxo (A moderado, textura argilosa a muito argilosa, distrófico, em Guaíra, SP. Os critérios utilizados para esta avaliação foram a eficiência do uso da água pela cultura e a efetividade da irrigação, esta última representada pela eficiência de aplicação da água, a uniformidade de distribuição da água sobre o solo e a eficiência de armazenagem da água no solo. O monitoramento das irrigações foi realizado através da instalação de 20 baterias de tensiômetros e 60 coletores de água de chuva e irrigação ao longo de uma transeção de 300 metros na direção radial do pivô. Os tensiômetros de cada bateria foram instalados a 15 cm e 30 cm de profundidade e espaçados entre si de 15 metros. Os coletores foram instalados a uma altura de 50 cm da superfície do terreno e distanciados entre si de 5 metros. O controle da irrigação foi feito com base na média ponderada dos 20 valores diários de potencial mátrico a 15 cm de profundidade, tendo como fator de ponderação a área representativa de cada tensiômetro. O valor mínimo de potencial mátrico estabelecido para a definição do momento da irrigação foi -0,06 MPa à profundidade de 15 cm e o valor da lâmina de água a ser aplicada em cada irrigação, calculado tendo-se em conta o valor de -0,008 MPa para o potencial mátrico a capacidade de campo. Os resultados obtidos mostraram que as irrigações efetuadas foram de alta qualidade uma vez que foram elevados os valores da eficiência de aplicação (80% e dos coeficientes de uniformidade de distribuição (94 e 91% calculados a partir das 16 irrigações acumuladas, o mesmo ocorrendo com a eficiência de armazenagem (95% e a eficiência de uso da água (0,8 kg/m³.The irrigation quality was evaluated for a center pivot

Análise de sensibilidade global dos parâmetros termofísicos de uma edificação residencial de acordo com o método de simulação do RTQ-R

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Arthur Santos Silva

Full Text Available Este trabalho tem por objetivo analisar a sensibilidade global de parâmetros termofísicos considerados no Regulamento Técnico da Qualidade para o Nível de Eficiência Energética de Edificações Residenciais (RTQ-R. Um estudo de caso de uma habitação em Florianópolis, SC, foi realizado por meio de simulação computacional no EnergyPlus com o arquivo climático TRY. Foram definidos 15 parâmetros utilizados no RTQ-R, variados por meio de amostragem com o Hipercubo Latino e geraram-se 500 simulações aleatórias. As variáveis dependentes são os graus-hora de resfriamento, consumo relativo com aquecimento e com refrigeração. Para a análise de sensibilidade foram utilizados os métodos dos Coeficientes de Regressão Padronizados e Coeficientes de Correlação Parcial. Foram feitas análises de variabilidade e comparação de simulações individuais. Os resultados mostraram que os parâmetros mais influentes diferem para cada variável dependente, o que dificulta a proposta de soluções de desempenho que atendam às condições de verão e inverno simultaneamente. A absortância solar e a emissividade da cobertura foram os parâmetros mais influentes em geral. O trabalho contribuiu para a identificação quantitativa dos parâmetros mais influentes no desempenho da edificação, o que pode auxiliar nos processos de otimização e na proposta de níveis de classificação de desempenho em certificações.

Avaliação de hipsômetros e operadores na mensuração de árvores de Eucalyptus urograndis de tamanhos diferentes

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Rafaella Carvalho Mayrinck

2016-12-01

Full Text Available A mensuração da altura de forma acurada é extremamente importante na ciência florestal, pois, influencia diretamente na predição do volume individual das árvores, bem como na volumetria de um povoamento e em todo o sistema de prognose. Por ser feita de forma indireta, é sujeita a erros, que devem ser minimizados. Assim, deve se usar o hipsômetro que proporcione menor erro, além de um operador treinado para o procedimento. Nesse estudo objetivou-se testar a acurácia do hipsômetro e operador em relação a árvores de Eucalyptus urograndis de tamanhos diferentes. Os dados foram coletados em um plantio de Eucalyptus urograndis em Turmalina, MG. Três árvores foram selecionadas, classificadas em pequena (12,1 m, média (18,9 m e grande (25,2 m. Seis operadores mediram cada uma das árvores usando 4 hipsômetros (Prancheta dendrométrica, Clinômetro digital, Suunto e Vertex 5 vezes. Posteriormente, realizou-se o abate das árvores e a obtenção da altura real com uma trena. Para analisar os dados, foi feita uma análise de variância, teste de Tukey e teste T. Os resultados mostram que houveram diferenças entre os valores encontrados pelos observadores, o que salienta a necessidade de treinamento. Todos os instrumentos geraram valores confiáveis. Para árvores mais baixas, o Vertex foi o instrumento mais confiável e para árvores maiores o Clinômetro digital foi o instrumento mais indicado. Evaluation of hypsometers and operators in measuring tree heights in Eucalyptus urograndis with different sizesAbstract: The accurate mensuration of tree hight is very important in forest science because it influences directly the individual tree volume, stand volume prediction and all the prognosis system. Due to the fact it is made indirectly, errors can occur, and they should be minimized. Hence, one should use hypsometers, which lead to a minor error and a trained operator to do it. This study aims to test the accuracy of hypsometers and

Lisímetro de pesagem de grande porte.: desenvolvimento e calibração A large-scale weighting lysimeter. part I: development and calibration

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Luiz F. M. de S. Campeche

2011-05-01

Full Text Available A evapotranspiração de plantas frutíferas foi medida a partir da instalação e calibração de um lisímetro de pesagem de grande porte. O equipamento, composto por caçamba metálica em aço carbono, possui arquitetura circular com área de 5,72 m² e massa total de 10,5 toneladas. Uma muda de coqueiro anão-verde foi transplantada para o lisímetro e mantida sob as mesmas condições de solo e adubação do campo experimental. Na automação do processo foi utilizado o mecanismo de alívio de carga baseado em sistemas de alavancas e contrapesos, apoiado em uma célula de carga com capacidade de 200 kg e precisão de 0,02% de sua capacidade. Os dados de saída da célula de carga foram armazenados em um coletor automático de dados tipo data logger. A relação entre a variação de massa e a voltagem da célula de carga do lisímetro é descrita adequadamente por modelo linear com mínima histerese. A metodologia empregada na instalação e na calibração do lisímetro foi adequada, obtendo-se um coeficiente de determinação de 0,99 na equação de calibração. Os resultados ainda indicam que o lisímetro de pesagem pode ser utilizado com êxito na determinação de evapotranspiração de plantas frutíferas de grande porte.The objectives of present study were to develop and to calibrate a large-scale weighing lysimeter in order to estimate evapotranspiration of fruit plants. The equipment consisted of a metallic bucket (steel carbon of circular design with total area of 5.72 m² and total mass of 10.5 t. A seedling of dwarf-green coconut palm was transplanted in lysimeter and maintained under same fertilization conditions of experimental field. For automation of the process, a mechanism of load relief based on systems of levers and counterbalances was used, leaning in a load cell with capacity of 200 kg and precision of 0.02% of its capacity. The output data of load cell were stored in an automatic data acquisition system. The