WorldWideScience

Sample records for range pound sterling

  1. Cimber Sterling

    DEFF Research Database (Denmark)

    Boyd, Britta; Hollensen, Svend

    2013-01-01

    The Danish family owned airline Cimber Sterling was established as Cimber Air in 1950, and started flying on some domestic routes. On 3 December 2008 Cimber Air bought parts of Sterling Airlines, which had filed for bankruptcy and the company became Cimber Sterling A/S. The airline company was li...

  2. Suez and Sterling, 1956

    OpenAIRE

    Adam Klug; Gregor W. Smith

    1999-01-01

    Daily data on spot and forward dollar/sterling exchange rates and on Britain's foreign exchange reserves are used to reassess the financial history of the 1956 Suez crisis. We find that support of sterling at its Bretton Woods lower bound lost credibility as early as July. Reserve losses also are consistent with an exchange rate crisis. We provide the first econometric study of foreign exchange market intervention in the pre-convertibility phase of the Bretton Woods system. The Bank of Englan...

  3. 76 FR 40407 - Sterling Capital Funds and Sterling Capital Management LLC; Notice of Application

    Science.gov (United States)

    2011-07-08

    ... Company serves as a Sub-Adviser of Sterling Capital National Tax- Free Money Market Fund and Sterling Capital Prime Money Market Fund. Sterling has also entered into a Sub-Advisory Agreement with Scott...

  4. Project Sterling. Project manager's report

    Energy Technology Data Exchange (ETDEWEB)

    None

    1967-12-01

    The Sterling experiment, detonated Dec. 3, 1966, was the first decoupled underground nuclear detonation. This experiment used the existing Salmon cavity and the original Salmon emplacement hole. The principal purpose of the Sterling experiment was (1) to determine the extent of decoupling of a sprung cavity in salt; specifically, to determine the decoupling ratio as a function of frequency; (2) to determine the accuracy of decoupling calculations for a sprung cavity; and (3) to define any operational problems associated with the reuse of a cavity. Project Sterling is a part of the Vela Uniform program. Vela is the short title of a research and development program directed toward locating, detecting, and identifying underground, surface, and high altitude nuclear detonations. The administration, operational planning, public safety, engineering and construction and logistics performed by NVOO in support of the technical and scientific experiments carried out are presented. (TFD)

  5. Improving the Patron Experience: Sterling Memorial Library's Single Service Point

    Science.gov (United States)

    Sider, Laura Galas

    2016-01-01

    This article describes the planning process and implementation of a single service point at Yale University's Sterling Memorial Library. While much recent scholarship on single service points (SSPs) has focused on the virtues or hazards of eliminating reference desks in libraries nationwide, this essay explores the ways in which single service…

  6. 78 FR 58288 - Consistency Certification for a Proposed Project in Sterling, New York; Notice of Appeal

    Science.gov (United States)

    2013-09-23

    ... for the installation of a solar panel array onto an existing dock located in Sterling, New York. The solar array would provide energy to a private residence. Under the CZMA, the Secretary may override the...

  7. Structural Pounding Detection by Using Wavelet Scalogram

    Directory of Open Access Journals (Sweden)

    Shutao Xing

    2012-01-01

    Full Text Available Structural pounding can cause considerable damage and even lead to collapse of structures. Most research focuses on modeling, parameter investigation, and mitigation approaches. With the development of structural health monitoring, the on-line detection of pounding becomes possible. The detection of pounding can provide useful information of potential damage of structures. This paper proposed using wavelet scalograms of dynamic response to detect pounding and examined the feasibility of this method. Numerical investigations were performed on a pounding system that consisted of a damped single-degree-of-freedom (SDOF structure and a rigid barrier. Hertz contact model was used to simulate pounding behavior. The responses and pounding forces of the system under harmonic and earthquake excitations were numerically solved. The wavelet scalograms of acceleration responses were used to identify poundings. It was found that the scalograms can indicate the occurrence of pounding and occurrence time very well. The severity of the poundings was also approximately estimated. Experimental studies were carried out, in which shake table tests were conducted on a bridge model that underwent pounding between its different components during ground motion excitation. The wavelet scalograms of the bridge responses indicated pounding occurrence quite well. Hence the conclusions from the numerical studies were verified experimentally.

  8. The 800-Pound Gorilla and Stability Operations

    Science.gov (United States)

    2010-06-30

    THE 800-POUND GORILLA AND STABILITY OPERATIONS by James P. Hunt, Major General, USAF Deputy Commanding General, MNC-I, April 09 – Jan...control number. 1. REPORT DATE 2010 2. REPORT TYPE 3. DATES COVERED 00-00-2010 to 00-00-2010 4. TITLE AND SUBTITLE The 800-Pound Gorilla and...national interests in this ever-changing world; each must change and adapt to succeed in Stability Operations. …WHERE DOES AN 800-POUND GORILLA SIT

  9. VizieR Online Data Catalog: Abundances in PNe. III: Se and Kr (Sterling+, 2015)

    Science.gov (United States)

    Sterling, N. C.; Porter, R. L.; Dinerstein, H. L.

    2015-08-01

    We have selected 15 PNe that exhibit emission lines from multiple Kr ions in their optical and near-infrared spectra (Table 1). Ten of these objects were modeled in Paper I (Sterling et al., 2007ApJS..169...37S). We draw the other objects from optical spectra published since Paper I (Sharpee et al. 2007, J/ApJ/659/1265; Garcia-Rojas et al. 2012, J/A+A/538/A54), with the exception of NGC 5315 (Peimbert et al. 2004ApJS..150..431P). Intensities for the K-band emission lines from Paper II (Sterling+, 2008ApJS..174..158S) were determined using the extinction coefficients listed in Table 1 and the extinction law adopted by the optical data reference. See section 3 for the complete explanation. (6 data files).

  10. 16 million [pounds] investment for 'virtual supercomputer'

    CERN Multimedia

    Holland, C

    2003-01-01

    "The Particle Physics and Astronomy Research Council is to spend 16million [pounds] to create a massive computing Grid, equivalent to the world's second largest supercomputer after Japan's Earth Simulator computer" (1/2 page)

  11. The "Biggest Loser" Expounds on the Benefits of Losing Pounds

    Science.gov (United States)

    ... Bar Home Current Issue Past Issues Special Section The "Biggest Loser" Expounds on the Benefits of Losing Pounds Past Issues / Winter 2008 ... 186 pounds, going from 361 to 175 pounds. The Twins on Losing Weight Bill: "The only way ...

  12. Autour des critiques du concept de sexe. Entretien avec Anne Fausto-Sterling

    OpenAIRE

    Fausto-Sterling, Anne; Touraille, Priscille

    2015-01-01

    Ce dialogue entre Anne Fausto-Sterling, professeure émérite de biologie et d’études sur le genre à Brown University (Providence, Rhode Island) et Priscille Touraille, anthropologue au CNRS (laboratoire éco-anthropologie et ethnobiologie du Muséum national d’histoire naturelle, Paris) revient sur les questions essentielles de la confrontation entre deux épistémologies disciplinaires, celle des études sur le genre et celle qui ont cours en biologie. Sur la base des travaux développés depuis les...

  13. 700m pound to smash open big bang secret

    CERN Multimedia

    Leake, J

    2003-01-01

    British scientists have won 700m pounds of government money to partipate in the project to build the world's largest and most powerful atom-smasher, the Next Generation Linear Collider (NGLC) (1 page).

  14. Insulin and Weight Gain: Keep the Pounds Off

    Science.gov (United States)

    Insulin and weight gain: Keep the pounds off Insulin and weight gain often go hand in hand, but weight control is possible. If you need insulin therapy, here's how to minimize — or avoid — weight ...

  15. God particle disappears down 6 billion pound drain

    CERN Multimedia

    Henderson, M

    2001-01-01

    An estimated 6 billion pounds has been spent looking for the Higgs particle over the last three decades. Recent results from LEP though, are now causing some scientists to doubt that it exists at all (1 page).

  16. Estimating indirect costs in primary Sjögren's syndrome.

    Science.gov (United States)

    Bowman, Simon J; St Pierre, Yvan; Sutcliffe, Nurhan; Isenberg, David A; Goldblatt, Fiona; Price, Elizabeth; Hamburger, John; Richards, Andrea; Rauz, Saaeha; Regan, Marian; Rigby, Shirley; Jones, Adrian; Mulherin, Diarmuid; Clarke, Ann E

    2010-05-01

    To estimate the indirect costs associated with primary Sjögren's syndrome (pSS) compared with rheumatoid arthritis (RA) and community controls. Data were obtained from 84 women patients with pSS as part of a study to develop a systemic activity measure, from 87 consecutive women patients with RA attending a hospital clinic, and from 96 women community controls on a general practice list. A modified economic component of the Stanford Health Assessment Questionnaire was used to assess lost productivity. Using a conservative model, the estimated total annual indirect costs (95% CI) were 7677 pound sterling (5560 pound sterling, 9794 pound sterling) for pSS, 10,444 pound sterling (8206 pound sterling, 12,681 pound sterling) for RA, and 892 pound sterling (307 pound sterling, 1478 pound sterling) for controls. Using a model that maximizes the estimates, the equivalent figures were 13,502 pound sterling (9542 pound sterling, 17,463 pound sterling), 17,070 pound sterling (13,112 pound sterling, 21,028 pound sterling), and 3382 pound sterling (2187 pound sterling, 4578 pound sterling), respectively. These were all significantly greater at p indirect costs equivalent to 69%-83% of that for patients with RA. This needs to be taken into account when evaluating the overall economic consequences of pSS.

  17. Novel design of an all-cryogenic RF pound circuit

    DEFF Research Database (Denmark)

    Basu, Ronni; Wang, R. T.; Dick, G. J.

    2005-01-01

    We report on the design, construction and test of a new all-cryogenic RF Pound circuit used to stabilize a 100 MHz VCXO. Here, all active and passive RF components used to accomplish the phase modulation and detect a PM to AM conversion have been installed into the cryogenic environment. In conju......We report on the design, construction and test of a new all-cryogenic RF Pound circuit used to stabilize a 100 MHz VCXO. Here, all active and passive RF components used to accomplish the phase modulation and detect a PM to AM conversion have been installed into the cryogenic environment....... In conjunction with a high-Q cryogenic sapphire resonator a Pound discriminator sensitivity of 0.1 mV/Hz was seen experimentally. Based on this sensitivity and the noise properties of the pre-amplifier of the Pound signal, we calculate a limit of the oscillator's Allan deviation as low as 4middot10-16/radictau...

  18. 60m pounds research funds to boost technical science

    CERN Multimedia

    Radford, T

    2002-01-01

    A 60m science research package was announced yesterday by the trade and industry secretary, Patricia Hewitt.The extra money comes from the chancellor's spending review. It will accelerate growth in science spending from 7% to 10% a year in real terms, and take the total budget to pounds 2.9bn by 2005-06 (1 page).

  19. Glycaemic Index and Glycaemic Load of Pounded yam in Diabetic ...

    African Journals Online (AJOL)

    Study design: metabolic study of 10 type-2 diabetic and 6 healthy volunteer subjects were carried out on two non- consecutive days after an overnight fast. Fifty grams of glucose was used as reference food while 50grams of available carbohydrate of pounded yam and egusi melon vegetable soup meal was used as test ...

  20. 16 CFR 500.19 - Conversion of SI metric quantities to inch/pound quantities and inch/pound quantities to SI...

    Science.gov (United States)

    2010-01-01

    ... 16 Commercial Practices 1 2010-01-01 2010-01-01 false Conversion of SI metric quantities to inch... LABELING ACT § 500.19 Conversion of SI metric quantities to inch/pound quantities and inch/pound quantities to SI metric quantities. (a) For calculating the conversion of SI metric quantities to inch/pound...

  1. Raw data report of elemental analyses from hydrogeochemical and stream sediment samples taken near Sterling and Fort Morgan, Northeastern Colorado, December 1976 and January 1977

    Energy Technology Data Exchange (ETDEWEB)

    Maxwell, J.C.

    1977-03-01

    Water and sediment samples were collected from 125 sites near Sterling and Fort Morgan, Colorado, from Dec. 20, 1976, to Jan. 15, 1977. The samples were analyzed for U using fluorometry and delayed-neutron counting, and for various elements using emission spectrometry, energy-dispersive x-ray fluorometry, and neutron activation analysis. Several parameters were measured at each sample site during the sampling. The data from each sample site and for the elemental analyses are included in this document. (DLC)

  2. Cardiovascular responses to millet pounding activity among women in a rural community in Northeastern Nigeria.

    Science.gov (United States)

    Oyeyemi, Adetoyeje Y; Jajimaji, Fati; Oyeyemi, Adewale L; Jabbo, Abdul-Hameed A

    2017-01-01

    Pounding food items in a wooden mortal is a common home chore in many communities in African and Asian countries. However, no empirical data exist on energy expenditure during this activity, and whether the activity can be considered a light, moderate, or vigorous intensity physical activity is unknown. This study was aimed at gaining insights into energy expenditure during millet pounding through cardiovascular responses to millet pounding activity, and to explore possible differences in response between women who pound millet as their occupation (habitual millet pounders) and those who pound millet only for their own home cooking but not as a job (nonhabitual pounders). A total of forty apparently healthy women performed millet pounding activity in standing position for 15 min durations, and their cardiovascular parameters including heart rate (HR), systolic blood pressure (SBP) and diastolic blood pressures (DBPs), and rated perceived exertion (RPE) at rest, and immediately after pounding activity were assessed. Significant increases in the subjects' cardiovascular parameters in the range of 7-12, 1-5, and 19-21 point values above the resting levels for SBP, DBP, and HR, respectively, were observed. Significantly higher SBP was also observed for the habitual pounders than the values for the nonhabitual pounders, whereas RPE was significantly higher for the nonhabitual pounders than for the habitual pounders in response to pounding. This study suggests that millet pounding substantially stresses the cardiovascular system sufficiently to place the activity within the moderate intensity category. Further studies on energy cost of this house chore, using instrumentation that is capable of direct measure of oxygen consumption, is warranted. Résumé Contexte: Le fait de battre des aliments dans un mortier en bois est une corvée à domicile fréquente dans de nombreuses communautés des pays d'Afrique et d'Asie. cependant, Il n'existe pas de données empiriques sur

  3. A decision analytical cost analysis of offering ECV in a UK district general hospital.

    Science.gov (United States)

    James, M; Hunt, K; Burr, R; Johanson, R

    2001-01-01

    To determine the care pathways and implications of offering mothers the choice of external cephalic version (ECV) at term for singleton babies who present with an uncomplicated breech pregnancy versus assisted breech delivery or elective caesarean. A prospective observational audit to construct a decision analysis of uncomplicated full term breech presentations. The North Staffordshire NHS Trust. All women (n = 176) who presented at full term with a breech baby without complications during July 1995 and June 1997. The study determined to compare the outcome in terms of the costs and cost consequences for the care pathways that resulted from whether a women chose to accept the offer of ECV or not. All the associated events were then mapped for the two possible pathways. The costs were considered only within the hospital setting, from the perspective of the health care provider up to the point of delivery. The additional costs for ECV, assisted breech delivery and elective caesarean over and above a normal birth were 186.70 pounds sterling, 425.36 pounds sterling and 1,955.22 pounds sterling respectively. The total expected cost of the respective care pathways for "ECV accepted" and "ECV not accepted" (including the probability of adverse events) were 1,452 pounds sterling and 1,828 pounds sterling respectively, that is the cost of delivery through the ECV care pathways is less costly than the non ECV delivery care pathway. Implementing an ECV service may yield cost savings in secondary care over and above the traditional delivery methods for breech birth of assisted delivery or caesarean section. The scale of these expected cost savings are in the range of 248 pounds sterling to 376 pounds sterling per patient. This converts to a total expected cost saving of between 43,616 pounds sterling and 44,544 pounds sterling for the patient cohort considered in this study.

  4. Pounding effects during an earthquake, with and without consideration of soil‑structure interaction

    Directory of Open Access Journals (Sweden)

    Daniela DOBRE

    2015-07-01

    Full Text Available The pounding between adjacent buildings can cause both architectural and structural damages. The paper presents some aspects related to the Vrancea seismic motions pattern, a review of observed damages after a strong earthquake due to pounding of buildings in Romania, a few causes of pounding, an analytical and numerical modeling study. For the behavior of buildings under structural pounding, an analysis with and without consideration of soil-structure interaction is done.

  5. 76 FR 12941 - Proposed Information Collection; Comment Request; Virginia Modified Pound Net Leader Inspection...

    Science.gov (United States)

    2011-03-09

    ... Modified Pound Net Leader Inspection Program AGENCY: National Oceanic and Atmospheric Administration (NOAA... program for modified pound net leaders in the Virginia waters of the mainstem Chesapeake Bay. Pound net..., they must allow for the inspection of gear to ensure the modified leader meets the definition of a...

  6. Ezra Pound and Du Fu: Gazing at Mt. Tai

    Directory of Open Access Journals (Sweden)

    Kent Su

    2017-08-01

    Full Text Available Confined to a six-by-six-foot outdoor steel cage, Ezra Pound saw a series of mountain hills from a few miles to the east of Pisa. The poet compared one of these small 800-metre hills to the sacred Chinese Mt. Tai, which becomes the most common geographical name in The Pisan Cantos. Pound’s poetic summoning of this particular mountain is related to the fact that Mt. Tai is historically and culturally connected to the philosophy of Confucius, who personally ascended the mountain several times. Pound, as a devout Confucian disciple, closely follows the philosophical doctrines and attempts to mentally trace the footsteps of Confucius. This paper will argue how Pound’s poetic evocation of the mountain shares a striking similarity to an eighth-century Chinese poem called “Gazing at Mt. Tai,” which was written by the famous literatus - Du Fu 杜甫(712 – 770 . In spite of living in two completely different eras and countries, Pound’s and Du Fu’s reference to Mt. Tai demonstrates the confluence of their poetic spirits. Neither of them ascended mountain personally. They instead made use of their poetic imagination to follow the paths of Confucius and perceived the mountain as an earthly paradise, one which represents tranquillity and serenity away from the moral and physical corruption of the external world.

  7. Pounding tools in HWK EE and EF-HR (Olduvai Gorge, Tanzania): Percussive activities in the Oldowan-Acheulean transition.

    Science.gov (United States)

    Arroyo, Adrián; de la Torre, Ignacio

    2017-11-20

    In this paper, we present pounded objects from excavations at HWK EE and EF-HR, which are studied from macro and microscopic perspectives. Analysis of HWK EE revealed one of the largest collections of percussive objects from Olduvai Gorge, while excavations at EF-HR have allowed us to recover a much wider collection of percussive tools than previously recorded. Differences are observed between the two localities. At the Acheulean site of EF-HR, percussive tools were predominantly used in the production of flakes and large cutting tools (LCTs). At the Oldowan site of HWK EE, the tool repertoire probably related to a wider range of activities, including bone breaking and bipolar knapping. Comparison of these two assemblages, potentially produced by different hominin species, helps provide a wider picture of pounding activities during the Oldowan-Acheulean transition at Olduvai Gorge. Copyright © 2017 Elsevier Ltd. All rights reserved.

  8. Studies on Pounding Response Considering Structure-Soil-Structure Interaction under Seismic Loads

    Directory of Open Access Journals (Sweden)

    Peizhen Li

    2017-12-01

    Full Text Available Pounding phenomena considering structure–soil–structure interaction (SSSI under seismic loads are investigated in this paper. Based on a practical engineering project, this work presents a three-dimensional finite element numerical simulation method using ANSYS software. According to Chinese design code, the models of adjacent shear wall structures on Shanghai soft soil with the rigid foundation, box foundation and pile foundation are built respectively. In the simulation, the Davidenkov model of the soil skeleton curve is assumed for soil behavior, and the contact elements with Kelvin model are adopted to simulate pounding phenomena between adjacent structures. Finally, the dynamic responses of adjacent structures considering the pounding and SSSI effects are analyzed. The results show that pounding phenomena may occur, indicating that the seismic separation requirement for adjacent buildings of Chinese design code may not be enough to avoid pounding effect. Pounding and SSSI effects worsen the adjacent buildings’ conditions because their acceleration and shear responses are amplified after pounding considering SSSI. These results are significant for studying the effect of pounding and SSSI phenomena on seismic responses of structures and national sustainable development, especially in earthquake prevention and disaster reduction.

  9. El montaje y el gesto (Ezra Pound / Henri Michaux): dos poéticas del ideograma

    OpenAIRE

    Pérez Villalón, Fernando

    2015-01-01

    Este ensayo compara el modo en que los escritores Ezra Pound y Henri Michaux incorporan en su pensamiento y su obra poética un diálogo con la escritura china, y específicamente con la noción de ideograma como un modo de entender su naturaleza. Tanto Pound como Michaux comparten un alto grado de fascinación por la dimensión pictográfica de la escritura china, que consideran como menos radicalmente divorciada de las cosas que la escritura alfabética, pero en Pound predomina una apropiación del ...

  10. Τesting models for the beginnings of the Aurignacian and the advent of figurative art and music: the radiocarbon chronology of Geißenklösterle.

    Science.gov (United States)

    Higham, Thomas; Basell, Laura; Jacobi, Roger; Wood, Rachel; Ramsey, Christopher Bronk; Conard, Nicholas J

    2012-06-01

    The German site of Geißenklösterle is crucial to debates concerning the European Middle to Upper Palaeolithic transition and the origins of the Aurignacian in Europe. Previous dates from the site are central to an important hypothesis, the Kulturpumpe model, which posits that the Swabian Jura was an area where crucial behavioural developments took place and then spread to other parts of Europe. The previous chronology (critical to the model), is based mainly on radiocarbon dating, but remains poorly constrained due to the dating resolution and the variability of dates. The cause of these problems is disputed, but two principal explanations have been proposed: a) larger than expected variations in the production of atmospheric radiocarbon, and b) taphonomic influences in the site mixing the bones that were dated into different parts of the site. We reinvestigate the chronology using a new series of radiocarbon determinations obtained from the Mousterian, Aurignacian and Gravettian levels. The results strongly imply that the previous dates were affected by insufficient decontamination of the bone collagen prior to dating. Using an ultrafiltration protocol the chronometric picture becomes much clearer. Comparison of the results against other recently dated sites in other parts of Europe suggests the Early Aurignacian levels are earlier than other sites in the south of France and Italy, but not as early as recently dated sites which suggest a pre-Aurignacian dispersal of modern humans to Italy by ∼45000 cal BP. They are consistent with the importance of the Danube Corridor as a key route for the movement of people and ideas. The new dates fail to refute the Kulturpumpe model and suggest that Swabian Jura is a region that contributed significantly to the evolution of symbolic behaviour as indicated by early evidence for figurative art, music and mythical imagery. Copyright © 2012 Elsevier Ltd. All rights reserved.

  11. Flexible Connection Elastomeric Rubber as a Pounding Resisting Element between Two Adjacent Buildings

    Directory of Open Access Journals (Sweden)

    Yuskar Lase

    2013-03-01

    Full Text Available To solve pounding problem of two adjacent buildings, structural designer usually employs a dilatation between the structures or make the two structures as a monolith structure. Other alternative is by using an elastomeric rubber as a pounding resisting element between the two structures. Effectiveness in applying elastomeric rubber component as flexible connection of two adjacent structures is the main focus of this paper. Various simulations such as structure models, earthquake excitations and openings in gap element are studied. Observation of maximum structural responses will be performed for structure model with elastomeric rubber in comparison with (1 monolith structure model and (2 structure model with rigid element (steel element. Simulation results show that application of elastomeric rubber component to prevent structures from pounding problem provides advantages especially in reducing internal forces in the shorter building. However, it slightly increases displacement of both structures.

  12. Starches from non - conventional sources to improve the technological characteristics of pound cake

    Directory of Open Access Journals (Sweden)

    Eveline Lopes Almeida

    2013-11-01

    Full Text Available This study evaluated and compared the effect of the utilization of five different non-conventional starches (chickpea, common bean, Peruvian carrot, sweet potato and white bean and four different commercial starches (cassava, corn, potato and rice in pound cake. Common bean starch, followed by Peruvian carrot starch were the non-conventional starch sources that showed tendency to improve the technological quality of pound cake, mainly in relation to corn starch, the most common commercial source. With these sources, the batters presented lower specific gravity and the cakes presented higher specific volume, lighter color, lower crumb moisture reduction during the storage period, and better texture attributes during all the cake shelf-life. Moreover, common bean starch provided higher scores in the cake sensory evaluation; especially for grain and texture attributes (moisture, tenderness and softness. Chickpea and white bean starches were more similar to corn starch in pound cake application.

  13. Numerical Study on Pounding between Two Adjacent Buildings under Earthquake Excitation

    Directory of Open Access Journals (Sweden)

    H. Naderpour

    2016-01-01

    Full Text Available Seismic excitation, which results in large horizontal relative displacements, may cause collisions between two adjacent structures due to insufficient separation distance between them. Such collisions, known as earthquake-induced structural pounding, may induce severe damage. In this paper, the case of pounding between two adjacent buildings is studied by the application of single degree-of-freedom structural models. Impact is numerically simulated with the use of a nonlinear viscoelastic model. Special attention is focused on calculating values of impact forces during collisions which have significant influence of pounding-involved response under ground motions. The results of the study indicate that the impact force time history is much dependent on the earthquake excitation analyzed. Moreover, the peak impact forces during collision depend substantially on such parameters as gap size, coefficient of restitution, impact velocity, and stiffness of impact spring element. The nonlinear viscoelastic model of impact force with the considered relation between the damping coefficient and the coefficient of restitution has also been found to be effective in simulating earthquake-induced structural pounding.

  14. New Equivalent Linear Impact Model for Simulation of Seismic Isolated Structure Pounding against Moat Wall

    Directory of Open Access Journals (Sweden)

    Yang Liu

    2014-01-01

    Full Text Available Base-isolated buildings subjected to extreme earthquakes or near-fault pulse-like earthquakes can exceed their design gap distance and impact against the surrounding moat wall. Based on equating energy dissipation and maximum collision compression deformation of isolated structure with the Hertz-damp model and Kevin-Voigt model in the process of collision, an equivalent linear impact model (ELIM is proposed to better predict impact response of seismic isolated structure. The formula of the equivalent linear stiffness of ELIM is theoretically derived. The effectiveness of ELIM is verified by comparing the results of numerical analyses with the results of pounding experiments. Four near-fault earthquakes are selected to validate rationality and accuracy of the proposed model using numerical analysis. The results indicate that the proposed linear model can nearly capture impact behavior of isolated structure in simulating the pounding-involved structural response.

  15. Pounding Effects on the Earthquake Response of Adjacent Reinforced Concrete Structures Strengthened by Cable Elements

    Science.gov (United States)

    Liolios, Angelos; Liolios, Asterios; Hatzigeorgiou, George; Radev, Stefan

    2014-06-01

    A numerical approach for estimating the effects of pounding (seismic interaction) on the response of adjacent Civil Engineering structures is presented. Emphasis is given to reinforced concrete (RC) frames of existing buildings which are seismically strengthened by cable-elements. A double discretization, in space by the Finite Element Method and in time by a direct incremental approach is used. The unilateral behaviours of both, the cable-elements and the interfaces contact-constraints, are taken strictly into account and result to inequality constitutive conditions. So, in each time-step, a non-convex linear complementarity problem is solved. It is found that pounding and cable strengthening have significant effects on the earthquake response and, hence, on the seismic upgrading of existing adjacent RC structures.

  16. Trade partners UK in Europe Leaf lands 2.5 million pound CERN deal

    CERN Multimedia

    2002-01-01

    "Leaf Technologies of Newtownabbey, County Antrim, has won a 2.5 million pound contract to supply electronic modules to CERN (the European Laboratory for Particle Physics) in Geneva, one of the world's most advanced scientific research projects, which is funded by the UK and 19 other European governments. Leaf will develop sophisticated circuit boards for the high precision controls of the Large Hadron Collider" (1 page)

  17. Structural pounding of concrete frame structure with masonry infill wall under seismic loading

    Science.gov (United States)

    Ismail, Rozaina; Hasnan, Mohd Hafizudin; Shamsudin, Nurhanis

    2017-10-01

    Structural pounding is additional problem than the other harmful damage that may occurs due to the earthquake vibrations. A lot of study has been made by past researcher but most of them did not include the walls. The infill masonry walls are rarely involved analysis of structural systems but it does contribute to earthquake response of the structures. In this research, a comparison between adjacent building of 10-storey and 7-storey concrete frame structure without of masonry infill walls and the same dynamic properties of buildings. The diagonal strut approach is adopted for modeling masonry infill walls. This research also focused on finding critical building separation in order to prevent the adjacent structures from pounding. LUSAS FEA v14.03 software has been used for modeling analyzing the behavior of structures due to seismic loading and the displacement each floor of the building has been taken in order to determine the critical separation distance between the buildings. From the analysis that has been done, it is found that masonry infill walls do affect the structures behavior under seismic load. Structures without masonry infill walls needs more distance between the structures to prevent structural pounding due to higher displacement of the buildings when it sways under seismic load compared to structures with masonry infill walls. This shows that contribution of masonry infill walls to the analysis of structures cannot be neglected.

  18. Field tests on total gap of modular expansion joints to avoid bridge pounding

    Directory of Open Access Journals (Sweden)

    Bo eLi

    2016-03-01

    Full Text Available Modular expansion joints (MEJs are used for accommodating large relative displacements of adjacent bridge segments and for completely eliminating pounding. However, the minimum total gap that an MEJ needs to avoid pounding is not well investigated. To provide guidance for the seismic gap of MEJs, the maximum relative displacement of adjacent bridge segments subject to strong earthquakes was studied experimentally. To date, no experimental investigation of excitation spatial variation effect on bridge on natural soil has been reported. This research addressed a bridge with three identical segments of 100 m. A 1:22 scale bridge model founded on compacted beach sand was tested using electro-magnetic inertial exciters. Different ground motions were applied to the model to simulate the effect of spatially varying ground motions. Soil-structure interaction (SSI was studied by comparing the minimum total gaps with those obtained from the fixed-based experiments in the laboratory. The spatially varying ground motions were simulated based on the New Zealand design spectra for soft soil, shallow soil and strong rock conditions using an empirical coherency loss function. SSI was found to reduce the minimum total gap of an MEJ needed to avoid pounding between adjacent segments. Under spatially varying ground motions designing adjacent bridge segments with identical or similar fundamental frequencies is still recommended even if it does not necessarily preclude an out-of-phase movement of adjacent structures.

  19. Upper extremity cumulative trauma disorders in the makers of Maraş pounded ice cream

    Directory of Open Access Journals (Sweden)

    Betül Bakan

    2013-01-01

    Full Text Available Objective: Upper Extremity Cumulative Trauma Disorders(UE-CTD are among the major health problems affectingthe workers. The aim of this study was to investigateUE-CTD in the makers of Maras pounded ice cream(MMPICMethods: This study was conducted among 50 volunteerswho work as a MMPIC and 50 control in our downtownarea. During face-to-face conversion, the participantsfilled out a survey inquiring about age, duration ofwork (in years in job, daily working time, occupation withanother job, health history, and medication usage. Thesubjects were questioned regarding the musculoskeletalcomplaints within the last six months and upper bodyphysical examination was performed in all participants.Results: The study group was composed of males.The mean age of study group and control group were31.78±6.58 and 30.74±5.99 years (p=0.411, respectively.The mean duration of work in pounded ice creambusiness and the mean duration of work in control were11.64± 6.26 years and 10.68±5.48 years (p=0.417, respectively.The mean daily working time in the studygroup and in control group were 10.64±1.82 hours and11.12±1.62 hours (p= 0.168, respectively. Musculoskeletalcomplaints of the upper extremity were found in 52%of the study group, and 28% of the control group. Musculoskeletaldisease of upper extremity was found in 28% ofthe study group and in 12% of the control group. Upperextremity musculoskeletal system complaints and illnesswere difference statistically between the two groups (p=0.014; p= 0.046, respectively.Conclusion: UE-CTD was seen in the makers of poundedice cream and its prevalence was similar to the otherlaborers work in the areas needing repetitive arm andhand motion.Key words: Makers of Maras pounded ice cream, cumulativetrauma disorders, upper extremity problems

  20. Highly reusable space transportation: Approaches for reducing ETO launch costs to $100 - $200 per pound of payload

    Science.gov (United States)

    Olds, John R.

    1995-01-01

    The Commercial Space Transportation Study (CSTS) suggests that considerable market expansion in earth-to-orbit transportation would take place if current launch prices could be reduced to around $400 per pound of payload. If these low prices can be achieved, annual payload delivered to low earth orbit (LEO) is predicted to reach 6.7 million pounds. The primary market growth will occur in communications, government missions, and civil transportation. By establishing a cost target of $100-$200 per pound of payload for a new launch system, the Highly Reusable Space Transportation (HRST) program has clearly set its sights on removing the current restriction on market growth imposed by today's high launch costs. In particular, achieving the goal of $100-$200 per pound of payload will require significant coordinated efforts in (1) marketing strategy development, (2) business planning, (3) system operational strategy, (4) vehicle technical design, and (5) vehicle maintenance strategy.

  1. Analisis Perbandingan Unjuk Kerja Sistem Penyeimbang Beban Web Server dengan HAProxy dan Pound Links

    Directory of Open Access Journals (Sweden)

    Dite Ardian

    2013-04-01

    Full Text Available The development of internet technology has many organizations that expanded service website. Initially used single web server that is accessible to everyone through the Internet, but when the number of users that access the web server is very much the traffic load to the web server and the web server anyway. It is necessary for the optimization of web servers to cope with the overload received by the web server when traffic is high. Methodology of this final project research include the study of literature, system design, and testing of the system. Methods from the literature reference books related as well as from several sources the internet. The design of this thesis uses Haproxy and Pound Links as a load balancing web server. The end of this reaserch is testing the network system, where the system will be tested this stage so as to create a web server system that is reliable and safe. The result is a web server system that can be accessed by many user simultaneously rapidly as load balancing Haproxy and Pound Links system which is set up as front-end web server performance so as to create a web server that has performance and high availability.

  2. Physiology, propaganda, and pound animals: medical research and animal welfare in mid-twentieth century America.

    Science.gov (United States)

    Parascandola, John

    2007-07-01

    In 1952, the University of Michigan physiologist Robert Gesell shocked his colleagues at the business meeting of the American Physiological Society by reading a prepared statement in which he claimed that some of the animal experimentation being carried out by scientists was inhumane. He especially attacked the National Society for Medical Research (NSMR), an organization that had been founded to defend animal experimentation. This incident was part of a broader struggle taking place at the time between scientists and animal welfare advocates with respect to what restrictions, if any, should be placed on animal research. A particularly controversial issue was whether or not pound animals should be made available to laboratories for research. Two of the prominent players in this controversy were the NSMR and the Animal Welfare Institute, founded and run by Gesell's daughter, Christine Stevens. This article focuses on the interaction between these two organizations within the broader context of the debate over animal experimentation in the mid-twentieth century.

  3. Markers of dietary protein intake are associated with successful weight loss in the POUNDS Lost trial.

    Science.gov (United States)

    Bray, G A; Ryan, D H; Johnson, W; Champagne, C M; Johnson, C M; Rood, J; Williamson, D A; Sacks, F M

    2017-06-01

    To assess the association of markers for dietary protein intake, measures of dietary adherence and demographic variables with weight loss in the POUNDS Lost study over the first 6 months and again between 6 and 24 months using data from those who completed each period. This is a secondary analysis of pooled data on completers assigned to one of four diets: 65%C/15%P/20%F (AP/LF), 55%C/25%P/20%F (HP/LF), 45%C/15%P/40%F (AP/HF) or 35%C/25%P40%F (HP/HF) in the POUNDS Lost study. Urinary nitrogen excretion, dietary adherence measured by 24-h recall and attendance at sessions, age (above and below 50 years), gender, race/ethnicity and activity by pedometry were analysed. Increased spread between protein intake at baseline and protein at 6 or 24 months, assessed by urinary nitrogen excretion, was associated with greater weight loss from baseline to 2 years. At 6 and 24 months, older age, male gender, body mass index > 30 kg m-2 and adherence to the fat and protein diets were associated with more weight loss. None of these variables was associated with a regain from 6 to 24 months. Weight regain for women in the highest carbohydrate (65%) group was significantly greater (-4.4 kg [95% CI: -5.9, -3.0]) than for women in the lowest carbohydrate group (-1.8 kg [95% CI: -3.2, -0.4 kg]) (P for interaction = 0.012). An increased spread in the difference between baseline and follow-up protein intake was associated with greater weight loss, consistent with the 'protein spread theory'. Women eating the highest carbohydrate diet regained more weight from 6 to 24 months. © 2017 World Obesity Federation.

  4. Altitude-Wind-Tunnel Investigation of a 4000-Pound-Thrust Axial-Flow Turbojet Engine. Part 1; Performance and Windmilling Drag Characteristics

    Science.gov (United States)

    Fleming, William A.

    1948-01-01

    The results of altitude-wind-tunnel tests conducted to determine the performance of an axial-flow-type 4000.pound-thrust turboJet engine for a range of pressure altitudes from 5000 to 40,000 feet and ram pressure ratios from 1.02 to 1.86 are presented and the experimental and analytical methods employed are discussed. By means of suitable generalizing factors applied to the measured performance data, curves were obtained from which the engine performance at any altitude for a given ram pressure ratio can be estimated. The data presented include the windmilling drag characteristics of the turbojet engine for the ranges of altitudes and ram pressure ratios covered by the performance data.

  5. Pestle-pounding and nut-cracking by wild chimpanzees at Kpala, Liberia.

    Science.gov (United States)

    Ohashi, Gaku

    2015-04-01

    Bossou in Guinea is one of the longitudinal study sites of wild chimpanzees, and is located only a few kilometers away from the national border between Guinea and Liberia. The forests in the area spread over the national border of Guinea, and the Bossou chimpanzees have been found to use the neighboring Liberian forest. Local assistants and I started surveying these forests in Liberia, and found that additional groups of chimpanzees lived in Nimba County, Liberia. The present study reports tool use behaviors by chimpanzees living in forests of the Kpala area in Nimba County. We directly observed pestle-pounding behavior, which had been confirmed only in the Bossou group of wild chimpanzees. Moreover, we heard sounds of nut-cracking, and successfully filmed chimpanzees cracking open oil palm nuts with stones. The uniqueness of stone-tool use behaviors has been emphasized with the group of chimpanzees that have been longitudinally studied at Bossou, but the behaviors probably have a wide distribution in this area. Emigrant chimpanzees are thought to contribute to the propagation of the cultural tool-use behaviors. It is also thought that, if the distantly located groups share similar cultural behaviors, there might be genetic exchange between them. Conservation efforts should be needed not only at Bossou, but also in a wider area including nonprotected forests beyond the national border.

  6. Antifungal properties of fermentates and their potential to replace sorbate and propionate in pound cake.

    Science.gov (United States)

    Samapundo, S; Devlieghere, F; Vroman, A; Eeckhout, M

    2016-11-21

    The major objective of this study was to assess the antifungal activities of commercially available 'clean label' fermentates and their potential to replace the preservative function of sorbate and propionate in cake. This study was performed in two parts. In the first part of the study the inhibitory activities of selected fermentates - FA, FB, FC and FD - towards Aspergillus tritici and Aspergillus amstelodami were assessed as a function of pH (5.0-6.5) on malt extract agar (MEA). In the second part of the study, challenge, shelf-life and sensorial tests were used to determine the suitability of these fermentates to replace potassium sorbate and calcium propionate in quarter pound cake. All the fermentates evaluated in this study all had significant (p0.05) in flavour from the reference cake (0.5% calcium propionate and 0.54% potassium sorbate). However, the challenge and shelf-life tests showed that cakes produced with ≤1% FC were not as microbiologically shelf-stable as the reference cake, especially when sliced. Therefore, it can be concluded that whilst fermentates have appreciable antifungal effects, their use could potentially result in reduced shelf-stabilities. Robust challenge and shelf-life tests would be recommended before the marketing of cakes were propionate and/or sorbate has been replaced to ensure accurate shelf-lives are stated. Copyright © 2016 Elsevier B.V. All rights reserved.

  7. Pounding Dynamic Responses of Sliding Base-Isolated Rectangular Liquid-Storage Structure considering Soil-Structure Interactions

    Directory of Open Access Journals (Sweden)

    Xuansheng Cheng

    2017-01-01

    Full Text Available The soil-structure interaction (SSI is simulated by an artificial boundary, the pounding that occurs between the sliding base-isolated rectangular liquid-storage structure (LSS and the surrounding moat wall is considered, the instantaneous pounding is simulated using the Hertz-damp model, and a simplified mechanical model with two particles and four degrees of freedom is established. Dynamic equation is obtained using Hamilton principle; effects of SSI, initial gap, and friction coefficient on the pounding responses under the action of near-field pulse-like Chi-Chi earthquake and far-field Imperial Valley-06 earthquake are studied. The results show that SSI will amplify liquid sloshing height but that structural acceleration and impact force will be reduced because of SSI. The responses caused by Chi-Chi earthquake are far greater than those of Imperial Valley-06 earthquake. Initial gap has a small effect on liquid sloshing height; structural acceleration and impact force first increase as the initial gap increases and then begin to decrease; in the design of moat wall of sliding isolation LSS, a certain gap exists that will more adversely affect the pounding responses of structure. Liquid sloshing height is less affected by coefficient of friction, but structural acceleration and impact force decrease as friction coefficient increases in general.

  8. 76 FR 64229 - Function and Reliability Flight Testing for Turbine-Powered Airplanes Weighing 6,000 Pounds or Less

    Science.gov (United States)

    2011-10-18

    ... the 6,000 pound threshold. The NPRM addressed the reality that advancements in technology since 1950... complex integrated systems, and that guidance should be developed accordingly. While the FAA agrees that... constitutes a complex integrated system that could be placed within part 21 regulations would be a difficult...

  9. Equipments - products: PAM, Europe, Atex; Sudco:an innovative manufacturer; A Silva Matos and the environment; Worthington Cylinders: expanding our activities; Lagoplast: indicator plates and cap seals; Sterling pumps; Rego GmbH Distribution Centre; Equipements - produits: PAM, Europe, Atex; Sudco: un fabricant innovant; A. Silva Matos et l'environnement; Worthington Cylinders: etendre notre activite; Lagoplast: plaques indicatrices et capsules; Sterling Fluid Systems; le centre de distribution de Rego GmbH

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    2004-07-15

    The Provencale d'Automation et de Mecanique (P.A.M) together with its partner Athelia Solutions is setting its presence on the European Market under the occasion of this event 17. World LP Gas Forum in Berlin, confirming its leading position from its competitors in the application of the latest European directives and more particularly the ATEX. Based in Molleges in the south of France since 1991, Sudco is a manufacturer of pallets and display stands for the transport, storage and distribution of LPG cylinders and industrial gases. Sudco goes forward in the field of innovation. A. Silva Matos uses to execute the painting of its constructions through the traditional equipment of liquid painting, where lines comprising shot blasting chambers, painting chambers and sweating-rooms are included. The expanding activities of Worthington Cylinders is explained here. Sterling Fluid Systems presents a new CEB vertical tank pump for autogas application. Continuing its research in the field of LPG, Lagoplast has created a line of indicator plates and labels in nylon 6 and 66, in order to meet the different requirements that domestic and international regulations submit to the LPG cylinders manufacturers. Rego GmbH Distribution Centre presents its new products, changes and features. (authors)

  10. 40 CFR 721.3320 - Ethanol, 2-amino-, com-pound with N-hydroxy-N-nitro-soben-zena-mine (1:1).

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 30 2010-07-01 2010-07-01 false Ethanol, 2-amino-, com-pound with N... Significant New Uses for Specific Chemical Substances § 721.3320 Ethanol, 2-amino-, com-pound with N-hydroxy-N...) The chemical substance identified as ethanol, 2-amino-, compound with N-hydroxy-N-nitrosobenzenamine...

  11. The Effects of Shielded Tote Bins on the Safe Separation of 168 Pounds of Composition A-7 Explosive.

    Science.gov (United States)

    1977-09-01

    shielding. Each tote bin con- tained 168 pounds of Comi . A-7 traveling an a s~imulated conveyor system with- in a tunnel or rarap. Full-scale tests were...propagation of acceptors. The results of this study are briefly summarized as follows: (1) Tbe thickness of Kevlar tested was ineffective in preventing...the appendix Mr. J. W. Gehring - Editing and preparation of the film Messrs. A. C. Garcia, Robert Marin, and John F. Weschler for implementing the field

  12. An ounce of discretion is worth a pound of wit--ergonomics is a healthy choice.

    Science.gov (United States)

    Rehman, Rehana; Khan, Rakhshaan; Surti, Ambreen; Khan, Hira

    2013-01-01

    The objective of the study was to identify the occurrence and outcome of low back ache amongst computer users and their relation to age, gender, occupation and duration of computer use. A self reported questionnaire tailored from Occupational Health and Safety Act of the Ministry of Labor, Ontario, Canada was used. 416 participants 55.5% males and 45% females using computers for a minimum of five years with age range 22 to 59 years belonged to different occupational groups. Consecutive hours of computer work was found to be associated with work related backache or discomfort in 27.4% (n = 114) participants (16.1% male, 11.3% female). Frequent short breaks improved backache (p value relation was observed with the duration of computer usage or usage per day; between the two genders or occupational groups. Backache had no significance within age groups. Our study identifies the occurrence of low back pain among those who are using computer for consecutive hours without breaks and the results suggest the need to create health awareness especially use of short breaks to minimize the risk and occurrence of low back pain. The result of this study can also be used to improve ergonomic design and standards.

  13. An Ounce of Discretion Is Worth a Pound of Wit — Ergonomics Is a Healthy Choice

    Science.gov (United States)

    Rehman, Rehana; Khan, Rakhshaan; Surti, Ambreen; Khan, Hira

    2013-01-01

    Objective The objective of the study was to identify the occurrence and outcome of low back ache amongst computer users and their relation to age, gender, occupation and duration of computer use. Materials and Methods A self reported questionnaire tailored from Occupational Health and Safety Act of the Ministry of Labor, Ontario, Canada was used. Results 416 participants 55.5% males and 45% females using computers for a minimum of five years with age range 22 to 59 years belonged to different occupational groups. Consecutive hours of computer work was found to be associated with work related backache or discomfort in 27.4% (n = 114) participants (16.1% male, 11.3% female). Frequent short breaks improved backache (p value relation was observed with the duration of computer usage or usage per day; between the two genders or occupational groups. Backache had no significance within age groups. Conclusion Our study identifies the occurrence of low back pain among those who are using computer for consecutive hours without breaks and the results suggest the need to create health awareness especially use of short breaks to minimize the risk and occurrence of low back pain. The result of this study can also be used to improve ergonomic design and standards. PMID:24204559

  14. The value of the managed entry of new drugs: a case study of donepezil.

    Science.gov (United States)

    Payne, Katherine; Davies, Linda M; Noyce, Peter R; Weiss, Marjorie C

    2003-01-01

    A United Kingdom Department of Health directive (EL[94]72) asked Health Authorities to manage the entry of new drugs into practice. There seem to be costs associated with the decision-making process of managed entry, but no clear evidence of benefit to patient populations. The objective of this study was to assess the potential costs and outcomes of different models of managed entry, using the example of donepezil in the North West Health Region of the U.K. National Health Service. This is a preliminary study designed to identify the key pieces of information required to evaluate the value of managed entry. Decision analytic models of three Health Authorities' approaches to manage the entry of donepezil were used to estimate the expected costs and effectiveness of the process. Resource use data were obtained from published sources and the relevant Health Authority. Probabilistic sensitivity analysis was used to determine the robustness of the results. The process of managed entry of donepezil was associated with higher expected costs and higher expected outcome than no managed entry. The 95% confidence intervals for the net expected costs and net expected outcomes were relatively narrow and did not cross zero, which suggests a statistical difference between managed entry and no managed entry for donepezil. The incremental cost-effectiveness ratios for managed entry of donepezil indicate that, compared with no managed entry, there were substantial differences between the different models used in the three study sites. The expected cost per unit of cognitive function gained was between 18,000 pounds sterling in study site 001 to 28,000 pounds sterling in study site 010. The expected cost per person with a clinically significant improvement was between 140,000 pounds sterling and 230,000 pounds sterling. The expected cost per QALY ranged from 470,000 pounds sterling to 19.3 million pounds sterling. Managed entry does not appear to be a worthwhile mechanism to

  15. Altitude-Wind-Tunnel Investigation of a 4000-Pound-Thrust Axial-Flow Turbojet Engine. II - Operational Characteristics. II; Operational Characteristics

    Science.gov (United States)

    Fleming, William A.

    1948-01-01

    An investigation was conducted in the Cleveland altitude wind tunnel to determine the operational characteristics of an axial flow-type turbojet engine with a 4000-pound-thrust rating over a range of pressure altitudes from 5,000 to 50,OOO feet, ram pressure ratios from 1.00 to 1.86, and temperatures from 60 deg to -50 deg F. The low-flow (standard) compressor with which the engine was originally equipped was replaced by a high-flow compressor for part of the investigation. The effects of altitude and airspeed on such operating characteristics as operating range, stability of combustion, acceleration, starting, operation of fuel-control systems, and bearing cooling were investigated. With the low-flow compressor, the engine could be operated at full speed without serious burner unbalance at altitudes up to 50,000 feet. Increasing the altitude and airspeed greatly reduced the operable speed range of the engine by raising the minimum operating speed of the engine. In several runs with the high-flow compressor the maximum engine speed was limited to less than 7600 rpm by combustion blow-out, high tail-pipe temperatures, and compressor stall. Acceleration of the engine was relatively slow and the time required for acceleration increased with altitude. At maximum engine speed a sudden reduction in jet-nozzle area resulted in an immediate increase in thrust. The engine started normally and easily below 20,000 feet with each configuration. The use of a high-voltage ignition system made possible starts at a pressure altitude of 40,000 feet; but on these starts the tail-pipe temperatures were very high, a great deal of fuel burned in and behind the tail-pipe, and acceleration was very slow. Operation of the engine was similar with both fuel regulators except that the modified fuel regulator restricted the fuel flow in such a manner that the acceleration above 6000 rpm was very slow. The bearings did not cool properly at high altitudes and high engine speeds with a low

  16. SOCIOLOGICAL JURISPRUDENCE: ROSCOE POUND'S ...

    African Journals Online (AJOL)

    eliasn

    jurisprudence from an anthropological-ethnological stage which is also interpretive but instead of concentrating on the mechanisms of social forces like the first group, they rather are more concerned with ethnological interpretation – making comparative studies of primitive institutions or generalising jural materials gathered ...

  17. Underweight? Add Pounds Healthfully

    Science.gov (United States)

    ... and cereals; fruits and vegetables; dairy products; lean protein sources; and nuts and seeds. Try smoothies and shakes. Don't fill up on diet soda, coffee and other drinks with few calories and little nutritional value. Instead, ...

  18. Sex Differences in the Effects of Weight Loss Diets on Bone Mineral Density and Body Composition: POUNDS LOST Trial.

    Science.gov (United States)

    Tirosh, Amir; de Souza, Russell J; Sacks, Frank; Bray, George A; Smith, Steven R; LeBoff, Meryl S

    2015-06-01

    Weight loss is associated with reduction in bone mineral density (BMD). The objective was to address the role of changes in fat mass (FM) and lean mass (LM) in BMD decline in both sexes. A 2-year randomized controlled trial, the Preventing Overweight Using Novel Dietary Strategies (POUNDS-LOST). The setting was the general community. Enrolled were 424 overweight and obese participants (mean age, 52 ± 9 y; 57% females). Intervention included weight loss diets differing in fat, protein, and carbohydrates. Main outcome measures were change in spine, total hip (TH), and femoral neck (FN) BMD and sex differences after dietary intervention. At baseline, a stronger correlation between BMD and body composition measurements was observed in women, primarily with LM (r = 0.419, 0.507, and 0.523 for spine, FN, and TH, respectively; all P weight loss at 2 years was -6.9%, without differences among diets. Two-year changes in BMD were 0.005 (P = .04), -0.014 (P women (r = 0.200, 0.324, and 0.260 for spine, FN, and TH, respectively), whereas FM loss correlated only with changes in TH BMD (0.274; P Weight loss diets result in sex-specific effects on BMD. Although men exhibited a paradoxical increase in spine BMD, women tended to decrease in BMD at all sites.

  19. Comment on 'The characterization of doped CeO2 electrodes in solid oxide fuel cells' by B.G. Pound

    DEFF Research Database (Denmark)

    Ranløv, J.; Poulsen, F.W.; Mogensen, Mogens Bjerg

    1993-01-01

    Electrode tests and ac impedance measurements presented by Pound on Ni, Co and Mn doped CeO2 are reviewed. We find that the stability of solid solutions in the systems of NiO-CeO2 and CoO-CeO2 are improbable and that therefore the interpretation of ac impedance data and electrode tests should...

  20. 40 CFR 86.1806-05 - On-board diagnostics for vehicles less than or equal to 14,000 pounds GVWR.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 19 2010-07-01 2010-07-01 false On-board diagnostics for vehicles less than or equal to 14,000 pounds GVWR. 86.1806-05 Section 86.1806-05 Protection of Environment... HIGHWAY VEHICLES AND ENGINES (CONTINUED) General Compliance Provisions for Control of Air Pollution From...

  1. 23 CFR Appendix C to Part 658 - Trucks Over 80,000 Pounds on the Interstate System and Trucks Over STAA Lengths on the National...

    Science.gov (United States)

    2010-04-01

    ... 23 Highways 1 2010-04-01 2010-04-01 false Trucks Over 80,000 Pounds on the Interstate System and Trucks Over STAA Lengths on the National Network C Appendix C to Part 658 Highways FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION ENGINEERING AND TRAFFIC OPERATIONS TRUCK SIZE AND WEIGHT, ROUTE...

  2. 7 CFR 201.30b - Lot number or other lot identification of vegetable seed in containers of more than 1 pound.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 3 2010-01-01 2010-01-01 false Lot number or other lot identification of vegetable... Vegetable Seeds § 201.30b Lot number or other lot identification of vegetable seed in containers of more than 1 pound. The lot number or other lot identification of vegetable seed in containers of more than 1...

  3. Surrendered and Stray Dogs in Australia—Estimation of Numbers Entering Municipal Pounds, Shelters and Rescue Groups and Their Outcomes

    Science.gov (United States)

    Chua, Diana; Rand, Jacquie; Morton, John

    2017-01-01

    Simple Summary Analyses of comprehensive and accurate dog intake and outcome data in municipal pounds and shelters across states in Australia would provide an in-depth understanding of the surrendered and stray dog issue as well as facilitate effective evaluation of existing management strategies. Currently, there is a lack of comprehensive and reliable data at the federal, state and local government levels across public and private agencies. In this study, we developed a methodology to estimate the annual numbers of dog admissions in Australia, and to describe their outcomes. In 2012–2013, there were an estimated 9.3 dog admissions per 1000 residents (211,655 dog admissions). Of these admissions, 4.4 per 1000 residents were reclaimed (101,037 reclaimed), 2.9 per 1000 residents were rehomed (66,443 rehomed) and 1.9 per 1000 residents were euthanized (43,900 euthanized). An ongoing standardized monitoring system would enable Australia to evaluate management strategies to reduce numbers of dogs admitted and euthanized, and to benchmark its unwanted dog management policies and performance against comparable countries. Abstract There is no national system for monitoring numbers of dogs entering municipal council pounds and shelters in Australia, or their outcomes. This limits understanding of the surrendered and stray dog issue, and prevents the evaluation of management strategies. We aimed to estimate these in 2012–2013. Dog intake and outcome data were collected for municipal councils and animal welfare organizations using annual reports, publications, primary peer-reviewed journal articles, websites and direct correspondence. More comprehensive data were obtained for New South Wales, Victoria, South Australia and Australian Capital Territory, whereas it was necessary to impute some or all data for Western Australia, Northern Territory, Queensland and Tasmania, as data were incomplete/unavailable. A refined methodology was developed to address the numerous

  4. Surrendered and Stray Dogs in Australia-Estimation of Numbers Entering Municipal Pounds, Shelters and Rescue Groups and Their Outcomes.

    Science.gov (United States)

    Chua, Diana; Rand, Jacquie; Morton, John

    2017-07-12

    There is no national system for monitoring numbers of dogs entering municipal council pounds and shelters in Australia, or their outcomes. This limits understanding of the surrendered and stray dog issue, and prevents the evaluation of management strategies. We aimed to estimate these in 2012-2013. Dog intake and outcome data were collected for municipal councils and animal welfare organizations using annual reports, publications, primary peer-reviewed journal articles, websites and direct correspondence. More comprehensive data were obtained for New South Wales, Victoria, South Australia and Australian Capital Territory, whereas it was necessary to impute some or all data for Western Australia, Northern Territory, Queensland and Tasmania, as data were incomplete/unavailable. A refined methodology was developed to address the numerous limitations of the available data. An estimated national total of 211,655 dog admissions (9.3 admissions/1000 residents) occurred in 2012-2013. Of these admissions, the numbers where the dog was reclaimed, rehomed or euthanized were estimated as 4.4, 2.9 and 1.9/1000 residents, respectively. Differences in outcomes were evident between states, and between municipal councils, welfare organizations and rescue groups. This study emphasizes the need for an ongoing standardized monitoring system with appropriate data routinely collected from all municipal councils, animal welfare organizations and rescue groups in Australia. Such a system would only require data that are easily collected by all relevant organizations and could be implemented at relatively low cost. This could facilitate ongoing evaluation of the magnitude of the surrendered and stray dog problem, and allow assessment of strategies aiming to reduce numbers of admissions and euthanasia.

  5. Surrendered and Stray Dogs in Australia—Estimation of Numbers Entering Municipal Pounds, Shelters and Rescue Groups and Their Outcomes

    Directory of Open Access Journals (Sweden)

    Diana Chua

    2017-07-01

    Full Text Available There is no national system for monitoring numbers of dogs entering municipal council pounds and shelters in Australia, or their outcomes. This limits understanding of the surrendered and stray dog issue, and prevents the evaluation of management strategies. We aimed to estimate these in 2012–2013. Dog intake and outcome data were collected for municipal councils and animal welfare organizations using annual reports, publications, primary peer-reviewed journal articles, websites and direct correspondence. More comprehensive data were obtained for New South Wales, Victoria, South Australia and Australian Capital Territory, whereas it was necessary to impute some or all data for Western Australia, Northern Territory, Queensland and Tasmania, as data were incomplete/unavailable. A refined methodology was developed to address the numerous limitations of the available data. An estimated national total of 211,655 dog admissions (9.3 admissions/1000 residents occurred in 2012–2013. Of these admissions, the numbers where the dog was reclaimed, rehomed or euthanized were estimated as 4.4, 2.9 and 1.9/1000 residents, respectively. Differences in outcomes were evident between states, and between municipal councils, welfare organizations and rescue groups. This study emphasizes the need for an ongoing standardized monitoring system with appropriate data routinely collected from all municipal councils, animal welfare organizations and rescue groups in Australia. Such a system would only require data that are easily collected by all relevant organizations and could be implemented at relatively low cost. This could facilitate ongoing evaluation of the magnitude of the surrendered and stray dog problem, and allow assessment of strategies aiming to reduce numbers of admissions and euthanasia.

  6. Penny wise, pound foolish: an assessment of Canadian Hemophilia/inherited bleeding disorder comprehensive care program services and resources.

    Science.gov (United States)

    Page, D; Crymble, S; Lawday, K; Long, M; Stoffman, J; Waterhouse, L; Wilton, P

    2016-07-01

    A network of 25 haemophilia/inherited bleeding disorder comprehensive care centres was established in Canada in the 1970s and 1980s. In 2007, standards of care, focused on the structural and resource requirements necessary to effectively provide optimal care, were adopted. Assess how human and physical resources affect centres' capacity to attain standards of care. The Canadian Hemophilia Society (CHS), with the support of the Association of Hemophilia Clinic Directors of Canada (AHCDC), undertook the assessment. Health care providers were interviewed in person by lay CHS volunteers and staff. A comprehensive patient satisfaction survey was mailed to a representative cross-section of patients/caregivers. The CHS observed that, despite competent and dedicated staff, many of the programmes are experiencing serious resource deficiencies. Twenty-three of the 25 programmes lack resources in one or more of the following disciplines: haematology, nursing, physiotherapy, social work and clerical/data entry. In nine of the 25 programmes, no resources are allocated to certain core disciplines, notably physiotherapy and social work. Key standards of care, including regular health assessments and close monitoring of home infusion with factor concentrates, are not always respected. Nevertheless, a high level of satisfaction was observed among patients and their caregivers. The study also discovered that clotting factor concentrates constitute 90-95% of the total cost of care while all other aspects of care delivery represent only 5-10%. Under-funding of programmes and suboptimal monitoring of valuable clotting factor concentrate utilization and reporting are both 'penny-wise' and 'pound-foolish'. A formal accreditation process is needed. © 2016 John Wiley & Sons Ltd.

  7. Thyroid hormones and changes in body weight and metabolic parameters in response to weight loss diets: the POUNDS LOST trial.

    Science.gov (United States)

    Liu, G; Liang, L; Bray, G A; Qi, L; Hu, F B; Rood, J; Sacks, F M; Sun, Q

    2017-06-01

    The role of thyroid hormones in diet-induced weight loss and subsequent weight regain is largely unknown. To examine the associations between thyroid hormones and changes in body weight and resting metabolic rate (RMR) in a diet-induced weight loss setting. Data analysis was conducted among 569 overweight and obese participants aged 30-70 years with normal thyroid function participating in the 2-year Prevention of Obesity Using Novel Dietary Strategies (POUNDS) LOST randomized clinical trial. Changes in body weight and RMR were assessed during the 2-year intervention. Thyroid hormones (free triiodothyronine (T3), free thyroxine (T4), total T3, total T4 and thyroid-stimulating hormone (TSH)), anthropometric measurements and biochemical parameters were assessed at baseline, 6 months and 24 months. Participants lost an average of 6.6 kg of body weight during the first 6 months and subsequently regained an average of 2.7 kg of body weight over the remaining period from 6 to 24 months. Baseline free T3 and total T3 were positively associated, whereas free T4 was inversely associated, with baseline body weight, body mass index and RMR. Total T4 and TSH were not associated with these parameters. Higher baseline free T3 and free T4 levels were significantly associated with a greater weight loss during the first 6 months (Pweight. Comparing extreme tertiles, the multivariate-adjusted weight loss±s.e. was -3.87±0.9 vs -5.39±0.9 kg for free T3 (Ptrend=0.02) and -4.09±0.9 vs -5.88±0.9 kg for free T4 (Ptrend=0.004). The thyroid hormones did not predict weight regain in 6-24 months. A similar pattern of associations was also observed between baseline thyroid hormones and changes in RMR. In addition, changes in free T3 and total T3 levels were positively associated with changes in body weight, RMR, body fat mass, blood pressure, glucose, insulin, triglycerides and leptin at 6 months and 24 months (all Pweight loss setting, higher baseline free T3 and free T4

  8. Altitude-Wind-Tunnel Investigation of a 4000-Pound-Thrust Axial-Flow Turbojet Engine. 3; Performance Characteristics with the High-Flow Compressor

    Science.gov (United States)

    Fleming, William A.; Golladay, Richard L.

    1948-01-01

    A wind tunnel investigation was conducted to determine the performance of a 4000-pound-thrust axial-flow turbojet engine with a high flow compressor. Pressure altitudes included 5000 to 40000 feet with ram pressure ratios from 1.00 to 1.82. Altitudes included 20000 to 40000 feet and ram pressure ratios from 1.09 to 1.75. A comparison is made between engine performance with high flow and low flow compressors.

  9. In vitro starch digestibility and expected glycemic index of pound cakes baked in two-cycle microwave-toaster and conventional oven.

    Science.gov (United States)

    García-zaragoza, Francisco J; Sánchez-Pardo, María E; Ortiz-Moreno, Alicia; Bello-Pérez, Luis A

    2010-11-01

    Bread baking technology has an important effect on starch digestibility measured as its predicted glycemic index tested in vitro. The aim of this work was to evaluate the changes in predicted glycemic index of pound cake baked in a two-cycle microwave toaster and a conventional oven. The glycemic index was calculated from hydrolysis index values by the Granfeldt method. Non-significant differences (P > 0.05) were found in hydrolysis index (60.67 ± 3.96 for the product baked in microwave oven and 65.94 ± 4.09 for the product baked in conventional oven) and predicted glycemic index content (60.5 for product baked in microwave oven and 65 for the product baked in conventional oven) in freshly-baked samples. Results clearly demonstrate that the baking pound cake conventional process could be replicated using a two-cycle multifunction microwave oven, reducing the traditional baking time. Further research is required in order to achieve pound cake crumb uniformity.

  10. The economic impact of mastitis-control procedures used in Scottish dairy herds with high bulk-tank somatic-cell counts.

    Science.gov (United States)

    Yalcin, C; Stott, A W; Logue, D N; Gunn, J

    1999-07-20

    We used multiple-regression analysis of field data to quantify the marginal impacts of various mastitis-control procedures on bulk-tank somatic-cell count (BTSCC). Estimates of milk-yield depression and the probability of herds paying a BTSCC penalty due to the presence of subclinical mastitis were made. An assessment of the economic efficiency of mastitis control by high BTSCC producers was also made using a loss-expenditure frontier. Significant interactions were detected between premilking udder-preparation methods (UP) and post-milking teat disinfection (PMTD), and also between the milking system of the herds and both the use of dry-cow therapy (DCT) and a regular milking-machine test (MMT). Udder preparation involving washing was associated with a higher SCC and had a detrimental effect on the efficacy of PMTD. Amongst herds facing a high-BTSCC problem (BTSCC >400,000 cells/ml), herds using PMTD without UP (regardless of the type of milking system), those using DCT (in parlour systems), and those with a parlour system having their milking machines tested obtained returns of Pound Sterling 1.4, Pound Sterling 3.9 and Pound Sterling 1.1, respectively, per Pound Sterling 1 investment in each of these procedures as a result of reductions in milk-yield losses and BTSCC penalties. The minimum total cost of disease within these herds was Pound Sterling 65.50/cow/year (due to Pound Sterling 41.40 revenue losses plus Pound Sterling 24.10 mastitis-control expenditure) attained by herds which had a parlour system and used DCT, MMT and PMTD (without UP). However, the average cost of subclinical mastitis for all high-BTSCC farms was Pound Sterling 100/cow/yr; hence, the difference (pound Sterling 34.50) could be saved by the more-efficient application of mastitis-control procedures.

  11. 78 FR 39576 - Adoption of Statutory Prohibition on the Operation of Jets Weighing 75,000 Pounds or Less That...

    Science.gov (United States)

    2013-07-02

    ... Price Digest, Winter 2011. The Airplane Bluebook Price Digest contains the average retail value, by year... Airplane Blue Book Price Digest \\2\\ was used. The ``Digest'' provides average retail values for airplanes... 457 registered owners of 599 \\1\\ airplanes that range between 25 to 50 years in age. Four hundred and...

  12. Predicting successful long-term weight loss from short-term weight-loss outcomes: new insights from a dynamic energy balance model (the POUNDS Lost study).

    Science.gov (United States)

    Thomas, Diana M; Ivanescu, Andrada E; Martin, Corby K; Heymsfield, Steven B; Marshall, Kaitlyn; Bodrato, Victoria E; Williamson, Donald A; Anton, Stephen D; Sacks, Frank M; Ryan, Donna; Bray, George A

    2015-03-01

    Currently, early weight-loss predictions of long-term weight-loss success rely on fixed percent-weight-loss thresholds. The objective was to develop thresholds during the first 3 mo of intervention that include the influence of age, sex, baseline weight, percent weight loss, and deviations from expected weight to predict whether a participant is likely to lose 5% or more body weight by year 1. Data consisting of month 1, 2, 3, and 12 treatment weights were obtained from the 2-y Preventing Obesity Using Novel Dietary Strategies (POUNDS Lost) intervention. Logistic regression models that included covariates of age, height, sex, baseline weight, target energy intake, percent weight loss, and deviation of actual weight from expected were developed for months 1, 2, and 3 that predicted the probability of losing treatment approaches during early intervention. © 2015 American Society for Nutrition.

  13. Postprandial glycaemic and insulinaemic responses in adults after consumption of dairy desserts and pound cakes containing short-chain fructo-oligosaccharides used to replace sugars.

    Science.gov (United States)

    Lecerf, J M; Clerc, E; Jaruga, A; Wagner, A; Respondek, F

    2015-01-01

    The present studies aimed to evaluate the glycaemic and insulinaemic responses, in healthy adults, to short-chain fructo-oligosaccharides (scFOS) from sucrose used to replace sugars in foods. Two study populations aged 18-50 years were recruited and they consumed dairy desserts or pound cakes containing either standard sugar content or scFOS to replace 30 % of the sugar content. For each study, the two products were tested once under a double-blind and cross-over design with at least 7 d between the two tests. Glucose and insulin were measured using standard methods in blood samples collected with a venous catheter for 120 min during a kinetic test. For the dairy desserts, replacing 30 % of the sugars with scFOS significantly reduced postprandial glycaemic (AUC0-120 min; P = 0·020) and insulinaemic (AUC0-120 min; P = 0·003) responses. For the pound cakes, the glycaemic response was not altered (AUC0-120 min; P =  0·322) while the insulinaemic response tended to be lower (AUC0-120 min; P = 0·067). This study showed that scFOS can be used to replace sugars with the benefit of lowering the postprandial glycaemic response without increasing the insulinaemic response. The effect might be modulated by other parameters (e.g. fat content) of the food matrices.

  14. Two-year changes in circulating adiponectin, ectopic fat distribution and body composition in response to weight-loss diets: the POUNDS Lost Trial.

    Science.gov (United States)

    Ma, W; Huang, T; Wang, M; Zheng, Y; Wang, T; Heianza, Y; Sun, D; Smith, S R; Bray, G A; Sacks, F M; Qi, L

    2016-11-01

    Adiponectin has a pivotal role in linking fat distribution with cardiometabolic disorders. We investigated the associations of long-term changes in circulating adiponectin with body composition and fat distribution at different abdominal depots in response to weight-loss dietary interventions, as well as the modification effect of sex. In the 2-year Preventing Overweight Using Novel Dietary Strategies (POUNDS Lost) Trial, 811 overweight or obese adults were randomly assigned to one of four diets varying in macronutrient intakes. Circulating concentrations of adiponectin were repeatedly measured at baseline, 6 months and 2 years. Body composition and fat distribution were repeatedly measured by dual-energy X-ray absorptiometry scan (n=424) and computed tomography (n=195). Over the 2-year intervention, after adjustment for age, sex, ethnicity, follow-up time, diet group, baseline body mass index and baseline level of respective outcome trait, increase of adiponectin was significantly associated with reduction of total fat mass (FM), total fat-free mass (FFM), whole body total percentage of fat mass (FM%), percentage of trunk fat (TF%), total adipose tissue (TAT), and adipose tissue mass at different depots including visceral (VAT), deep subcutaneous (DSAT) and superficial subcutaneous (SSAT; Pwomen. Long-term changes in circulating adiponectin were differentially associated with improvement of body composition and abdominal fat distribution in men and women.

  15. Repression of Lateral Organ Boundary Genes by PENNYWISE and POUND-FOOLISH Is Essential for Meristem Maintenance and Flowering in Arabidopsis1[OPEN

    Science.gov (United States)

    Khan, Madiha; Ragni, Laura; Tabb, Paul; Salasini, Brenda C.; Chatfield, Steven; Datla, Raju; Lock, John; Kuai, Xiahezi; Després, Charles; Proveniers, Marcel; Yongguo, Cao; Xiang, Daoquan; Morin, Halima; Rullière, Jean-Pierre; Citerne, Sylvie; Hepworth, Shelley R.; Pautot, Véronique

    2015-01-01

    In the model plant Arabidopsis (Arabidopsis thaliana), endogenous and environmental signals acting on the shoot apical meristem cause acquisition of inflorescence meristem fate. This results in changed patterns of aerial development seen as the transition from making leaves to the production of flowers separated by elongated internodes. Two related BEL1-like homeobox genes, PENNYWISE (PNY) and POUND-FOOLISH (PNF), fulfill this transition. Loss of function of these genes impairs stem cell maintenance and blocks internode elongation and flowering. We show here that pny pnf apices misexpress lateral organ boundary genes BLADE-ON-PETIOLE1/2 (BOP1/2) and KNOTTED-LIKE FROM ARABIDOPSIS THALIANA6 (KNAT6) together with ARABIDOPSIS THALIANA HOMEOBOX GENE1 (ATH1). Inactivation of genes in this module fully rescues pny pnf defects. We further show that BOP1 directly activates ATH1, whereas activation of KNAT6 is indirect. The pny pnf restoration correlates with renewed accumulation of transcripts conferring floral meristem identity, including FD, SQUAMOSA PROMOTER-BINDING PROTEIN LIKE genes, LEAFY, and APETALA1. To gain insight into how this module blocks flowering, we analyzed the transcriptome of BOP1-overexpressing plants. Our data suggest a central role for the microRNA156-SQUAMOSA PROMOTER BINDING PROTEIN-LIKE-microRNA172 module in integrating stress signals conferred in part by promotion of jasmonic acid biosynthesis. These data reveal a potential mechanism by which repression of lateral organ boundary genes by PNY-PNF is essential for flowering. PMID:26417006

  16. The Role of PENNYWISE and POUND-FOOLISH in the Maintenance of the Shoot Apical Meristem in Arabidopsis1[W][OA

    Science.gov (United States)

    Ung, Nolan; Lal, Shruti; Smith, Harley M.S.

    2011-01-01

    Growth of the aerial part of the plant is dependent upon the maintenance of the shoot apical meristem (SAM). A balance between the self-renewing stem cells in the central zone (CZ) and organogenesis in the peripheral zone (PZ) is essential for the integrity, function, and maintenance of the SAM. Understanding how the SAM maintains a balance between stem cell perpetuation and organogenesis is a central question in plant biology. Two related BELL1-like homeodomain proteins, PENNYWISE (PNY) and POUND-FOOLISH (PNF), act to specify floral meristems during reproductive development. However, genetic studies also show that PNY and PNF regulate the maintenance of the SAM. To understand the role of PNY and PNF in meristem maintenance, the expression patterns for genes that specifically localize to the peripheral and central regions of the SAM were examined in Arabidopsis (Arabidopsis thaliana). Results from these experiments indicate that the integrity of the CZ is impaired in pny pnf plants, which alters the balance of stem cell renewal and organogenesis. As a result, pools of CZ cells may be allocated into initiating leaf primordia. Consistent with these results, the integrity of the central region of pny pnf SAMs can be partially restored by increasing the size of the CZ. Interestingly, flower specification is also reestablished by augmenting the size of the SAM in pny pnf plants. Taken together, we propose that PNY and PNF act to restrict organogenesis to the PZ by maintaining a boundary between the CZ and PZ. PMID:21505100

  17. Range management visual impacts

    Science.gov (United States)

    Bruce R. Brown; David Kissel

    1979-01-01

    Historical overgrazing of western public rangelands has resulted in the passage of the Public Rangeland Improvement Act of 1978. The main purpose of this Act is to improve unsatisfactory range conditions. A contributing factor to unfavorable range conditions is adverse visual impacts. These visual impacts can be identified in three categories of range management: range...

  18. 'An ounce of prevention is worth a pound of cure': the case for and against GnRH-agonist for fertility preservation.

    Science.gov (United States)

    Blumenfeld, Z; Katz, G; Evron, A

    2014-09-01

    The late effects of cancer treatment have recently gained a worldwide interest among reproductive endocrinologists, oncologists, and all health-care providers, and the protection against iatrogenic infertility caused by chemotherapy assumes a high priority. Here, we summarize the case for and against using GnRH-agonist for fertility preservation and minimizing chemotherapy-induced gonadotoxicity. The rationale and philosophy supporting its use is that preventing premature ovarian failure (POF) is preferable to treating it, following the dictum: 'an ounce of prevention is worth a pound of cure'. Despite many publications on this subject, there are many equivocal issues necessitating summary. Until now, 20 studies (15 retrospective and 5 randomized, controlled trials) have reported on 1837 patients treated with GnRH-a in parallel to chemotherapy, showing a significant decrease in POF rate in survivors versus 9 studies reporting on 593 patients, with results not supporting GnRH-a use. Patients treated with GnRH-a in parallel to chemotherapy preserved their cyclic ovarian function in 91% of cases when compared with 41% of controls, with a pregnancy rate of 19-71% in the treated patients. Furthermore, seven meta-analyses have concluded that GnRH-a are beneficial and may decrease the risk of POF in survivors. However, controversy still remains regarding the efficiency of GnRH-a in preserving fertility. Since not all the methods involving fertility preservation are unequivocally successful and safe, these young patients deserve to be informed of all the various modalities to minimize gonadal damage and preserve ovarian function and future fertility. Combining several methods for a specific patient may increase the odds for minimally invasive fertility preservation. © The Author 2014. Published by Oxford University Press on behalf of the European Society for Medical Oncology. All rights reserved. For permissions, please email: journals.permissions@oup.com.

  19. Minnesota Pheasant Range

    Data.gov (United States)

    Minnesota Department of Natural Resources — This dataset delineates the spatial range of wild pheasant populations in Minnesota as of 2002 by dividing the MN state boundary into 2 units: pheasant range and...

  20. Substring Range Reporting

    DEFF Research Database (Denmark)

    Bille, Philip; Gørtz, Inge Li

    2014-01-01

    We revisit various string indexing problems with range reporting features, namely, position-restricted substring searching, indexing substrings with gaps, and indexing substrings with intervals. We obtain the following main results. We give efficient reductions for each of the above problems...... to a new problem, which we call substring range reporting. Hence, we unify the previous work by showing that we may restrict our attention to a single problem rather than studying each of the above problems individually. We show how to solve substring range reporting with optimal query time and little...... for substring range reporting generalize to substring range counting and substring range emptiness variants. We also obtain non-trivial time-space trade-offs for these problems. Our bounds for substring range reporting are based on a novel combination of suffix trees and range reporting data structures...

  1. Substring Range Reporting

    DEFF Research Database (Denmark)

    Bille, Philip; Gørtz, Inge Li

    2011-01-01

    We revisit various string indexing problems with range reporting features, namely, position-restricted substring searching, indexing substrings with gaps, and indexing substrings with intervals. We obtain the following main results. – We give efficient reductions for each of the above problems...... to a new problem, which we call substring range reporting. Hence, we unify the previous work by showing that we may restrict our attention to a single problem rather than studying each of the above problems individually. – We show how to solve substring range reporting with optimal query time and little...... range reporting are based on a novel combination of suffix trees and range reporting data structures. The reductions are simple and general and may apply to other combinations of string indexing with range reporting....

  2. Compact Antenna Range

    Data.gov (United States)

    Federal Laboratory Consortium — Facility consists of a folded compact antenna range including a computer controlled three axis position table, parabolic reflector and RF sources for the measurement...

  3. Dryden Aeronautical Test Range

    Data.gov (United States)

    Federal Laboratory Consortium — Recently redesignated to honor Dr. Hugh L. Dryden, NASA's Dryden Aeronautical Test Range (DATR) supports aerospace flight research and technology integration, space...

  4. Bolo de "chocolate" produzido com pó de cupuaçu e kefir "Chocolate" pound cake with cupuassu and kefir

    Directory of Open Access Journals (Sweden)

    Mauricio Sergio Esteller

    2006-09-01

    Full Text Available Nos últimos anos vem ocorrendo a valorização dos recursos e produtos naturais. Cresce em todo o mundo a preocupação com a conservação do meio ambiente e a valorização dos recursos da flora e fauna. É forte a demanda por tecnologias de processo, de produto e de aplicação. Neste estudo foi utilizada formulação padronizada para bolo tipo inglês, substituindo cacau em pó por cupuaçu em pó e com adição de kefir, mantendo-se o total de sólidos. O tempo e a temperatura de assamento foram fixados em 50 minutos e 180 ºC. Foram avaliados a porosidade do miolo, o perfil de textura, cor, umidade, volume específico e densidade da massa. Os resultados mostraram que a adição de pó de cupuaçu não altera as características do bolo padrão elaborado com cacau e que a adição de kefir modifica a textura e a porosidade do miolo.In the last years, natural resources and products have gained the attention of consumers. The concern with the conservation of the environment and the importance of the flora and fauna increases in the whole world. The demand for application, product, and process technologies is strong. In this study, a control chocolate pound cake formula was used changing cocoa powder from the original formula to cupuassu powder and adding kefir, keeping the amounts of total solids. The time and temperature were fixed in 50 minutes and 180 ºC. Crumb porosity, texture profile analysis (TPA, color, moisture, specific volume, and dough density were evaluated. The results showed that cupuassu powder can be used as a cocoa replacer in "chocolate" cake production and that kefir changed the texture and crumb porosity of the cake.

  5. On Range of Skill

    DEFF Research Database (Denmark)

    Hansen, Thomas Dueholm; Miltersen, Peter Bro; Sørensen, Troels Bjerre

    2008-01-01

    size (and doubly exponential in its depth). We also provide techniques that yield concrete bounds for unbalanced game trees and apply these to estimate the Range of Skill of Tic-Tac-Toe and Heads-Up Limit Texas Hold'em Poker. In particular, we show that the Range of Skill of Tic-Tac-Toe is more than...

  6. Range Scheduling Aid (RSA)

    Science.gov (United States)

    Logan, J. R.; Pulvermacher, M. K.

    1991-01-01

    Range Scheduling Aid (RSA) is presented in the form of the viewgraphs. The following subject areas are covered: satellite control network; current and new approaches to range scheduling; MITRE tasking; RSA features; RSA display; constraint based analytic capability; RSA architecture; and RSA benefits.

  7. Home range and travels

    Science.gov (United States)

    Stickel, L.F.; King, John A.

    1968-01-01

    The concept of home range was expressed by Seton (1909) in the term 'home region,' which Burr (1940, 1943) clarified with a definition of home range and exemplified in a definitive study of Peromyscus in the field. Burt pointed out the ever-changing characteristics of home-range area and the consequent absence of boundaries in the usual sense--a finding verified by investigators thereafter. In the studies summarized in this paper, sizes of home ranges of Peromyscus varied within two magnitudes, approximately from 0.1 acre to ten acres, in 34 studies conducted in a variety of habitats from the seaside dunes of Florida to the Alaskan forests. Variation in sizes of home ranges was correlated with both environmental and physiological factors; with habitat it was conspicuous, both in the same and different regions. Food supply also was related to size of home range, both seasonally and in relation to habitat. Home ranges generally were smallest in winter and largest in spring, at the onset of the breeding season. Activity and size also were affected by changes in weather. Activity was least when temperatures were low and nights were bright. Effects of rainfall were variable. Sizes varied according to sex and age; young mice remained in the parents' range until they approached maturity, when they began to travel more widely. Adult males commonly had larger home ranges than females, although there were a number of exceptions. An inverse relationship between population density and size of home range was shown in several studies and probably is the usual relationship. A basic need for activity and exploration also appeared to influence size of home range. Behavior within the home range was discussed in terms of travel patterns, travels in relation to home sites and refuges, territory, and stability of size of home range. Travels within the home range consisted of repeated use of well-worn trails to sites of food, shelter, and refuge, plus more random exploratory travels

  8. Long range image enhancement

    CSIR Research Space (South Africa)

    Duvenhage, B

    2015-11-01

    Full Text Available and Vision Computing, Auckland, New Zealand, 23-24 November 2015 Long Range Image Enhancement Bernardt Duvenhage Council for Scientific and Industrial Research South Africa Email: bduvenhage@csir.co.za Abstract Turbulent pockets of air...

  9. SNOWY RANGE WILDERNESS, WYOMING.

    Science.gov (United States)

    Houston, Robert S.; Bigsby, Philip R.

    1984-01-01

    A mineral survey of the Snowy Range Wilderness in Wyoming was undertaken and was followed up with more detailed geologic and geochemical surveys, culminating in diamond drilling of one hole in the Snowy Range Wilderness. No mineral deposits were identified in the Snowy Range Wilderness, but inasmuch as low-grade uranium and associated gold resources were identified in rocks similar to those of the northern Snowy Range Wilderness in an area about 5 mi northeast of the wilderness boundary, the authors conclude that the northern half of the wilderness has a probable-resource potential for uranium and gold. Closely spaced drilling would be required to completely evaluate this mineral potential. The geologic terrane precludes the occurrence of fossil fuels.

  10. Atlantic Test Range (ATR)

    Data.gov (United States)

    Federal Laboratory Consortium — ATR controls fully-instrumented and integrated test ranges that provide full-service support for cradle-to-grave testing. Airspace and surface target areas are used...

  11. Light Detection And Ranging

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — LiDAR (Light Detection and Ranging) discrete-return point cloud data are available in the American Society for Photogrammetry and Remote Sensing (ASPRS) LAS format....

  12. On Range of Skill

    DEFF Research Database (Denmark)

    Hansen, Thomas Dueholm; Miltersen, Peter Bro; Sørensen, Troels Bjerre

    2008-01-01

    is a small number, but only gave heuristic arguments for this. In this paper, we provide the first methods for rigorously estimating the Range of Skill of a given game. We provide some general, asymptotic bounds that imply that the Range of Skill of a perfectly balanced game tree is almost exponential in its......At AAAI'07, Zinkevich, Bowling and Burch introduced the Range of Skill measure of a two-player game and used it as a parameter in the analysis of the running time of an algorithm for finding approximate solutions to such games. They suggested that the Range of Skill of a typical natural game...... size (and doubly exponential in its depth). We also provide techniques that yield concrete bounds for unbalanced game trees and apply these to estimate the Range of Skill of Tic-Tac-Toe and Heads-Up Limit Texas Hold'em Poker. In particular, we show that the Range of Skill of Tic-Tac-Toe is more than...

  13. Range Selection and Median

    DEFF Research Database (Denmark)

    Jørgensen, Allan Grønlund; Larsen, Kasper Green

    2011-01-01

    that supports queries in constant time, needs n1+ (1) space. For data structures that uses n logO(1) n space this matches the best known upper bound. Additionally, we present a linear space data structure that supports range selection queries in O(log k= log log n + log log n) time. Finally, we prove that any...

  14. Electric vehicles: Driving range

    Science.gov (United States)

    Kempton, Willett

    2016-09-01

    For uptake of electric vehicles to increase, consumers' driving-range needs must be fulfilled. Analysis of the driving patterns of personal vehicles in the US now shows that today's electric vehicles can meet all travel needs on almost 90% of days from a single overnight charge.

  15. Long-range antigravity

    Energy Technology Data Exchange (ETDEWEB)

    Macrae, K.I.; Riegert, R.J. (Maryland Univ., College Park (USA). Center for Theoretical Physics)

    1984-10-01

    We consider a theory in which fermionic matter interacts via long-range scalar, vector and tensor fields. In order not to be in conflict with experiment, the scalar and vector couplings for a given fermion must be equal, as is natural in a dimensionally reduced model. Assuming that the Sun is not approximately neutral with respect to these new scalar-vector charges, and if the couplings saturate the experimental bounds, then their strength can be comparable to that of gravity. Scalar-vector fields of this strength can compensate for a solar quadrupole moment contribution to Mercury's anomalous perihelion precession.

  16. Online Sorted Range Reporting

    DEFF Research Database (Denmark)

    Brodal, Gerth Stølting; Fagerberg, Rolf; Greve, Mark

    2009-01-01

    We study the following one-dimensional range reporting problem: On an arrayA of n elements, support queries that given two indices i ≤ j and an integerk report the k smallest elements in the subarray A[i..j] in sorted order. We present a data structure in the RAM model supporting such queries...... in optimal O(k) time. The structure uses O(n) words of space and can be constructed in O(n logn) time. The data structure can be extended to solve the online version of the problem, where the elements in A[i..j] are reported one-by-one in sorted order, in O(1) worst-case time per element. The problem...... is motivated by (and is a generalization of) a problem with applications in search engines: On a tree where leaves have associated rank values, report the highest ranked leaves in a given subtree. Finally, the problem studied generalizes the classic range minimum query (RMQ) problem on arrays....

  17. Investigation of Thrust Augmentation of a 1600-pound Thrust Centrifugal-flow-type Turbojet Engine by Injection of Refrigerants at Compressor Inlets

    Science.gov (United States)

    Jones, William L.; Dowman, Harry W.

    1947-01-01

    Investigations were conducted to determine effectiveness of refrigerants in increasing thrust of turbojet engines. Mixtures of water an alcohol were injected for a range of total flows up to 2.2 lb/sec. Kerosene was injected into inlets covering a range of injected flows up to approximately 30% of normal engine fuel flow. Injection of 2.0 lb/sec of water alone produced an increase in thrust of 35.8% of rate engine conditions and kerosene produced a negligible increase in thrust. Carbon dioxide increased thrust 23.5 percent.

  18. Lightning detection and ranging

    Science.gov (United States)

    Lennon, C. L.; Poehler, H. A.

    1982-01-01

    A lightning detector and ranging (LDAR) system developed at the Kennedy Space Center and recently transferred to Wallops Island is described. The system detects pulsed VHF signals due to electrical discharges occurring in a thunderstorm by means of 56-75 MHz receivers located at the hub and at the tips of 8 km radial lines. Incoming signals are transmitted by wideband links to a central computing facility which processes the times of arrival, using two independent calculations to determine position in order to guard against false data. The results are plotted on a CRT display, and an example of a thunderstorm lightning strike detection near Kennedy Space Center is outlined. The LDAR correctly identified potential ground strike zones and additionally provided a high correlation between updrafts and ground strikes.

  19. Proposal to place a supplementary order for LHC cryodipole end restraints

    CERN Document Server

    2004-01-01

    This document concerns a proposal to place a supplementary order for LHC cryodipole end restraints. The Finance Committee is invited to agree to the placing of a supplementary order with STAINLESS METALCRAFT (GB) for the supply of 125 additional end restraints for an amount not exceeding 215 500 pounds sterling (492 797 Swiss francs), not subject to revision, bringing the total order value to an amount not exceeding 534 996 pounds sterling (1 223 407 Swiss francs), not subject to revision with an option for up to 80 extra transport end restraints for an amount of 137 920 pounds sterling (315 390 Swiss francs), not subject to revision. The rate of exchange used is that stipulated in the tender. The firm has indicated the following distribution by country of the contract value covered by this adjudication proposal: GB - 100%.

  20. Detachment Faulting in the Western Basin and Range: New Geometric, Thermal, and Temporal Constraints From the Bare Mountain Region in Southwestern Nevada

    Science.gov (United States)

    Ferrill, D. A.; Stamatakos, J. A.; Morris, A. P.; Donelick, R. A.; Blythe, A. E.

    2001-12-01

    Zircon and apatite fission-track cooling ages for 50 samples taken from Bare Mountain and surrounding areas of southern Nevada, analyzed in conjunction with structural and paleomagnetic data and calcite deformation geothermometry data, provide new constraints on the timing and distribution of detachment faulting in the western Basin and Range. Our results show that: (i) Bare Mountain was tilted to the east or northeast, probably during Middle Miocene extension, prior to development of the Bullfrog Hills detachment system. (ii) Bare Mountain cooled through the fission-track closure temperature for fluorine-rich apatite (115-125 C) more or less as a unit at 8 to 17 Ma. (iii) Northwest Bare Mountain cooled through the zircon closure temperature (250 C) at 8 to 17 Ma, whereas the rest of the mountain cooled through this temperature between the Late Paleozoic and the Eocene. The combination of tilting at Bare Mountain and the apatite and zircon fission-track cooling ages indicates the presence of a west-dipping breakaway fault at Bare Mountain at around 15 Ma. New apatite fission-track cooling ages from Yucca Flat, Frenchman Flat, Mount Sterling, the Striped Hills, the Resting Springs Range, and the Funeral Mountains, when combined with published apatite ages, constrain the regional position of a west-dipping breakaway fault and exhumed footwall. The current position of the trailing edge of the hanging wall of this system is the Death Valley - Furnace Creek fault system. Migration rates of the cooling front in the footwall of this system range from 4.0 mm/yr at the latitude of Bare Mountain to 7.3 mm/yr at the latitude of central Death Valley. * Work performed at the CNWRA for the U.S. NRC under contract number NRC-02-97-009. This is an independent product of the CNWRA and does not necessarily reflect the views or regulatory position of the NRC.

  1. An economic evaluation of three physiotherapy treatments for non-specific neck disorders alongside a randomized trial.

    Science.gov (United States)

    Lewis, M; James, M; Stokes, E; Hill, J; Sim, J; Hay, E; Dziedzic, K

    2007-11-01

    Cost-effectiveness and cost-utility analyses were conducted to compare advice and exercise plus manual therapy (MT) and advice and exercise plus pulsed shortwave diathermy (PSWD) with advice and exercise alone (A&E) in the treatment of non-specific neck disorders by experienced physiotherapists. Between July 2000 and June 2002, 350 participants with neck disorders from 15 physiotherapy departments were randomized to: A&E (n = 115); MT (n = 114) and PSWD (n = 121). Outcome and resource-use data were collected using physiotherapist case report forms and participant self-complete questionnaires. Outcome measures were the Northwick Park Neck Pain Questionnaire (NPQ) and EuroQoL EQ-5D [used to derive quality-adjusted-life-year (QALY) utility scores]. Two economic viewpoints were considered (health care and societal). Cost-effectiveness acceptability curves were used to assess the probabilities of the interventions being cost-effective at different willingness-to-pay threshold values. Mean improvement in NPQ at 6 months was 11.5 in the A&E group, 10.2 in the MT group and 10.3 in the PSWD group; mean QALY scores were 0.362, 0.342 and 0.360, respectively. Mean health care costs were pound sterling105, pound sterling119 and pound sterling123 in the A&E, MT and PSWD groups, respectively. Mean societal costs were pound sterling373, pound sterling303 and pound sterling 338 in each group, respectively. Depending on the viewpoint and the outcome measure, A&E or MT were most likely to be the cost-effective interventions. PSWD was consistently the least cost-effective intervention. The cost-effective intervention is likely to be A&E or MT, depending on the economic perspective and preferred outcome, but not PSWD.

  2. Nytteomkostningsanalyse af populationsscreening for abdominalt aortaaneurisme baseret på fem års resultater af en randomiseret hospitalsbaseret screeningsundersøgelse--sekundaerpublikation

    DEFF Research Database (Denmark)

    Lindholt, Jes S; Juul, Svend; Fasting, Helge

    2006-01-01

    The lethality of ruptured abdominal aortic aneurysm (AAA) is 80-95% compared to 5-6% after elective surgery. However, AAA seldom causes symptoms before rupture. From 1994 to 1998, 12,639 men aged 64-73, from Viborg County, were randomised 1:1 for an invitation to an ultrasonographic scan...... or for controls. There were 75% fewer emergency operations (P AAA-specific mortality in the screening group (P = 0.002). The costs were 6,221 pounds sterling (4,034-13,782) per saved living year, expected to decrease to about 1,860 pounds sterling after 10 years. Screening of Danish men...

  3. State-of-the-art HDU's critical importance.

    Science.gov (United States)

    Green, Philip

    2012-09-01

    Phil Green, senior project engineer at independent building services company, Shepherd Engineering Services (SES), describes SES's creation a new 'state-of-the-art', 4.5 million sterling pounds, high dependency unit (HDU) at The James Cook University Hospital, Middlesbrough. Completion of the 16-bed HDU, part of a wider South Tees Hospitals NHS Foundation Trust investment programme to remodel and enhance the hospital's facilities, follows last September's completion, also by SES, of the Endeavour Unit (HEJ - November 2011), a new oncology satellite building built as a key element of the Trust's 30 million sterling pounds expansion and redevelopment of its Radiotherapy Unit at the Middlesbrough hospital.

  4. Ranging Behaviour of Commercial Free-Range Laying Hens

    Directory of Open Access Journals (Sweden)

    Leonard Ikenna Chielo

    2016-04-01

    Full Text Available In this study, the range use and behaviour of laying hens in commercial free-range flocks was explored. Six flocks were each visited on four separate days and data collected from their outdoor area (divided into zones based on distance from shed and available resources. These were: apron (0–10 m from shed normally without cover or other enrichments; enriched belt (10–50 m from shed where resources such as manmade cover, saplings and dust baths were provided; and outer range (beyond 50 m from shed with no cover and mainly grass pasture. Data collection consisted of counting the number of hens in each zone and recording behaviour, feather condition and nearest neighbour distance (NND of 20 birds per zone on each visit day. In addition, we used techniques derived from ecological surveys to establish four transects perpendicular to the shed, running through the apron, enriched belt and outer range. Number of hens in each 10 m × 10 m quadrat was recorded four times per day as was the temperature and relative humidity of the outer range. On average, 12.5% of hens were found outside. Of these, 5.4% were found in the apron; 4.3% in the enriched zone; and 2.8% were in the outer range. This pattern was supported by data from quadrats, where the density of hens sharply dropped with increasing distance from shed. Consequently, NND was greatest in the outer range, least in the apron and intermediate in the enriched belt. Hens sampled in outer range and enriched belts had better feather condition than those from the apron. Standing, ground pecking, walking and foraging were the most commonly recorded activities with standing and pecking most likely to occur in the apron, and walking and foraging more common in the outer range. Use of the outer range declined with lower temperatures and increasing relative humidity, though use of apron and enriched belt was not affected by variation in these measures. These data support previous findings that outer range

  5. Ranging Behaviour of Commercial Free-Range Laying Hens.

    Science.gov (United States)

    Chielo, Leonard Ikenna; Pike, Tom; Cooper, Jonathan

    2016-04-26

    In this study, the range use and behaviour of laying hens in commercial free-range flocks was explored. Six flocks were each visited on four separate days and data collected from their outdoor area (divided into zones based on distance from shed and available resources). These were: apron (0-10 m from shed normally without cover or other enrichments); enriched belt (10-50 m from shed where resources such as manmade cover, saplings and dust baths were provided); and outer range (beyond 50 m from shed with no cover and mainly grass pasture). Data collection consisted of counting the number of hens in each zone and recording behaviour, feather condition and nearest neighbour distance (NND) of 20 birds per zone on each visit day. In addition, we used techniques derived from ecological surveys to establish four transects perpendicular to the shed, running through the apron, enriched belt and outer range. Number of hens in each 10 m × 10 m quadrat was recorded four times per day as was the temperature and relative humidity of the outer range. On average, 12.5% of hens were found outside. Of these, 5.4% were found in the apron; 4.3% in the enriched zone; and 2.8% were in the outer range. This pattern was supported by data from quadrats, where the density of hens sharply dropped with increasing distance from shed. Consequently, NND was greatest in the outer range, least in the apron and intermediate in the enriched belt. Hens sampled in outer range and enriched belts had better feather condition than those from the apron. Standing, ground pecking, walking and foraging were the most commonly recorded activities with standing and pecking most likely to occur in the apron, and walking and foraging more common in the outer range. Use of the outer range declined with lower temperatures and increasing relative humidity, though use of apron and enriched belt was not affected by variation in these measures. These data support previous findings that outer range areas tend to be

  6. Celiac Disease: Four Inches and Seven Pounds...

    Science.gov (United States)

    ... of this page please turn JavaScript on. Feature: Celiac Disease Four Inches and Seven Pounds… Past Issues / Spring 2015 Table of Contents Maghann and Stella—managing celiac disease. Photo courtesy of Maghann Ruiz Much to her ...

  7. The mosquito problem in Oxidation Pounds

    CSIR Research Space (South Africa)

    Loedolff, C.J

    2011-01-20

    Full Text Available or chicken blood . :\\Tnitlc niosquito cannot stick blood because its inotttli—parts arc onl’ imperfectly developed and are incapable of piercing the human skin, Its fond consists tif tile nectar of [lowers and the tuces of ripe fruits, food which die...

  8. Britain's delegation to CERN, the European Centre for Nuclear Research near Geneva, voted in favour of a project which take seven years to build, involve a 27 kilometre long tunnel, and cost 230 million pounds. Now LEP receives the go-ahead later this month

    CERN Multimedia

    Llewellyn Smith, Christopher Hubert

    1981-01-01

    Britain's delegation to CERN, the European Centre for Nuclear Research near Geneva, voted in favour of a project which take seven years to build, involve a 27 kilometre long tunnel, and cost 230 million pounds. Now LEP receives the go-ahead later this month

  9. Osprey Range - CWHR [ds601

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  10. Short-range fundamental forces

    CERN Document Server

    Antoniadis, I; Buchner, M; Fedorov, V V; Hoedl, S; Lambrecht, A; Nesvizhevsky, V V; Pignol, G; Protasov, K V; Reynaud, S; Sobolev, Yu

    2011-01-01

    We consider theoretical motivations to search for extra short-range fundamental forces as well as experiments constraining their parameters. The forces could be of two types: 1) spin-independent forces, 2) spin-dependent axion-like forces. Differe nt experimental techniques are sensitive in respective ranges of characteristic distances. The techniques include measurements of gravity at short distances, searches for extra interactions on top of the Casimir force, precision atomic and neutron experim ents. We focus on neutron constraints, thus the range of characteristic distances considered here corresponds to the range accessible for neutron experiments.

  11. Cascade Mountain Range in Oregon

    Science.gov (United States)

    Sherrod, David R.

    2016-01-01

    The Cascade mountain system extends from northern California to central British Columbia. In Oregon, it comprises the Cascade Range, which is 260 miles long and, at greatest breadth, 90 miles wide (fig. 1). Oregon’s Cascade Range covers roughly 17,000 square miles, or about 17 percent of the state, an area larger than each of the smallest nine of the fifty United States. The range is bounded on the east by U.S. Highways 97 and 197. On the west it reaches nearly to Interstate 5, forming the eastern margin of the Willamette Valley and, farther south, abutting the Coast Ranges

  12. Ranging Behaviour of Commercial Free-Range Laying Hens

    Science.gov (United States)

    Chielo, Leonard Ikenna; Pike, Tom; Cooper, Jonathan

    2016-01-01

    Simple Summary Commercial free-range production has become a significant sector of the fresh egg market due to legislation banning conventional cages and consumer preference for products perceived as welfare friendly, as access to outdoor range can lead to welfare benefits such as greater freedom of movement and enhanced behavioural opportunities. This study investigated dispersal patterns, feather condition and activity of laying hens in three distinct zones of the range area; the apron area near shed; enriched zone 10–50 m from shed; and outer range beyond 50 m, in six flocks of laying hens under commercial free-range conditions varying in size between 4000 and 24,000 hens. Each flock was visited for four days to record number of hens in each zone, their behaviour, feather condition and nearest neighbour distances (NND), as well as record temperature and relative humidity during the visit. Temperature and relative humidity varied across the study period in line with seasonal variations and influenced the use of range with fewer hens out of shed as temperature fell or relative humidity rose. On average, 12.5% of the hens were observed on the range and most of these hens were recorded in the apron zone as hen density decreased rapidly with increasing distance from the shed. Larger flocks appeared to have a lower proportion of hens on range. The hens used the range more in the early morning followed by a progressive decrease through to early afternoon. The NND was greatest in the outer range and decreased towards the shed. Feather condition was generally good and hens observed in the outer range had the best overall feather condition. Standing, pecking, walking and foraging were the most commonly recorded behaviours and of these, standing occurred most in the apron whereas walking and foraging behaviours were recorded most in the outer range. This study supported the findings of previous studies that reported few hens in the range and greater use of areas closer

  13. Desert Experimental Range: Annotated bibliography

    Science.gov (United States)

    E. Durant McArthur; Stanley G. Kitchen

    2013-01-01

    Entries qualify for inclusion if they were conducted in whole or part at the Desert Experimental Range (DER, also known as the Desert Range Experiment Station) or were based on DER research in whole or part. They do not qualify merely by the author having worked at the DER when the research was performed or prepared. Entries were drawn from the original abstracts or...

  14. Foraging optimally for home ranges

    Science.gov (United States)

    Mitchell, Michael S.; Powell, Roger A.

    2012-01-01

    Economic models predict behavior of animals based on the presumption that natural selection has shaped behaviors important to an animal's fitness to maximize benefits over costs. Economic analyses have shown that territories of animals are structured by trade-offs between benefits gained from resources and costs of defending them. Intuitively, home ranges should be similarly structured, but trade-offs are difficult to assess because there are no costs of defense, thus economic models of home-range behavior are rare. We present economic models that predict how home ranges can be efficient with respect to spatially distributed resources, discounted for travel costs, under 2 strategies of optimization, resource maximization and area minimization. We show how constraints such as competitors can influence structure of homes ranges through resource depression, ultimately structuring density of animals within a population and their distribution on a landscape. We present simulations based on these models to show how they can be generally predictive of home-range behavior and the mechanisms that structure the spatial distribution of animals. We also show how contiguous home ranges estimated statistically from location data can be misleading for animals that optimize home ranges on landscapes with patchily distributed resources. We conclude with a summary of how we applied our models to nonterritorial black bears (Ursus americanus) living in the mountains of North Carolina, where we found their home ranges were best predicted by an area-minimization strategy constrained by intraspecific competition within a social hierarchy. Economic models can provide strong inference about home-range behavior and the resources that structure home ranges by offering falsifiable, a priori hypotheses that can be tested with field observations.

  15. Reference Ranges & What They Mean

    Science.gov (United States)

    ... Chains Sex Hormone Binding Globulin (SHBG) Shiga toxin-producing Escherichia coli Sickle Cell Tests Sirolimus Smooth Muscle ... If you're trying to follow a healthy lifestyle, take test results that are within range as ...

  16. Kenai National Moose Range Alaska

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This book presents a summary of the history, wildlife, recreational opportunities, economic uses, and future plans for Kenai National Moose Range.

  17. Genetic susceptibility to diabetes and long-term improvement of insulin resistance and β cell function during weight loss: the Preventing Overweight Using Novel Dietary Strategies (POUNDS LOST) trial.

    Science.gov (United States)

    Huang, Tao; Ley, Sylvia H; Zheng, Yan; Wang, Tiange; Bray, George A; Sacks, Frank M; Qi, Lu

    2016-07-01

    Diet interventions have shown effectiveness in improving diabetes risk factors; however, little is known about whether the effects of diet intervention are different according to genetic susceptibility. We examined interactions between weight-loss diets and the genetic risk score (GRS) for diabetes on 2-y changes in markers of insulin resistance and β cell function in a randomized controlled trial. Data from the Preventing Overweight Using Novel Dietary Strategies (POUNDS LOST) trial were analyzed. A GRS was calculated on the basis of 31 diabetes-associated variants in 744 overweight or obese nondiabetic adults (80% white Americans). We assessed the changes in insulin resistance and β cell function over the 2-y intervention. Dietary protein significantly interacted with the diabetes GRS on fasting insulin, glycated hemoglobin (HbA1c), the homeostasis model assessment of β cell function (HOMA-B), and the homeostasis model assessment of insulin resistance (HOMA-IR) at 2 y in white Americans (P-interaction = 0.02, 0.04, 0.01, and 0.05, respectively). The lower GRS was associated with a greater decrease in fasting insulin (P = 0.04), HbA1c (P = 0.0001), and HOMA-IR (P = 0.02), and a lesser increase in HOMA-B (P = 0.004) in participants consuming a low-protein diet. Participants with a higher GRS might have a greater reduction in fasting insulin when consuming a high-protein diet (P = 0.03). Our data suggest that individuals with a lower genetic risk of diabetes may benefit more from consuming a low-protein weight-loss diet in improving insulin resistance and β cell function, whereas a high-protein diet may be more beneficial for white patients with a higher genetic risk. This trial was registered at clinicaltrials.gov as NCT00072995. © 2016 American Society for Nutrition.

  18. Wide Operational Range Thermal Sensor

    Science.gov (United States)

    Goebel, John H. (Inventor); McMurray, Robert E., Jr. (Inventor)

    2005-01-01

    Bolometer system and method for detecting, at BLIP levels, presence of radiation over a broad range of wavelengths in an infrared spectrum and in a temperature range from 20 K to as high as room temperature. The radiation is received by a Si crystal having a region that is doped with one or more of In, Ga, S, Se, Te, B, Al, P, As and Sb in a concentration ratio in a range such as 5 x 10(exp -11) to 5 x 10(exp -6). Change in electrical resistance delta R due to receipt of the radiation is measured through a change in voltage difference or current within the crystal, and the quantity delta R is converted to an estimate of the amount of radiation received. Optionally, incident radiation having an energy high enough to promote photoconductivity is removed before detection.

  19. GEA CRDA Range Data Analysis

    Science.gov (United States)

    1999-07-28

    E1, July-August 1998 18 3.3. Example 3: SatMex, Solidaridad 2, May-June 1998 27 3.4. Example 4: PanAmSat, Galaxy IV, May-June 1998 33 3.5...17 Millstone measurements residuals for Telstar 401 on Days 181-263. 26 3-18 Millstone measurement residuals for Solidaridad 1 on Days 141-153...with 29 SatMex range data. 3-19 Hermosillo B-- Solidaridad 1 range residuals through Days 135-144 with bias 30 removed. 3-20 Iztapalapa D

  20. Radio pill antenna range test

    Science.gov (United States)

    Cummins, W. F.; Kane, R. J.

    1992-05-01

    In order to investigate the potential of a proposed 'radio pill' beacon transmitter, a range test experiment was devised and carried out in the VHF frequency range. Calculations and previous work indicated that optimum sensitivity and, thus, distance would be obtained in this frequency range provided body radio-frequency (RF) absorption was not too great. A ferrite-core loop antenna is compatible with a pill geometry and has better radiation efficiency than an air core loop. The ferrite core may be a hollow cylinder with the electronics and batteries placed inside. However, this range test was only concerned with experimentally developing test range data on the ferrite core antenna itself. A one turn strap loop was placed around a 9.5 mm diameter by 18.3 mm long stack of ferrite cores. This was coupled to a 50 Omega transmission line by 76 mm of twisted pair line and a capacitive matching section. This assembly was excited by a signal generator at output levels of -10 to +10 dBm. Signals were received on a VHF receiver and tape recorder coupled to a 14 element, circularly polarized Yagi antenna at a height of 2.5 m. Field strength measurements taken at ranges of 440, 1100, and 1714 m. Maximum field strengths referenced to 0 dBm transmitter level were -107 to -110 dB at 440 m, -124 to -127 dBm at 1100 m, and -116 to -119 dBm at 1714 m when the antenna cylinder was horizontal. Field strengths with a vertical antenna were about 6 dB below these values. The latter transmit site was elevated and had a clear line-of-site path to the receiving site. The performance of this test antenna was better than that expected from method-of-moment field calculations. When this performance data is scaled to a narrow bandwidth receiving system, ground level receiving ranges of a few to 10 km can be expected. Clear line-of-sight ranges where either or both the transmitter and receiver are elevated could vary from several km to 100 km.

  1. Improved Range Searching Lower Bounds

    DEFF Research Database (Denmark)

    Larsen, Kasper Green; Nguyen, Huy L.

    2012-01-01

    by constructing a hard input set and query set, and then invoking Chazelle and Rosenberg's [CGTA'96] general theorem on the complexity of navigation in the pointer machine. For the group model, we show that input sets and query sets that are hard for range reporting in the pointer machine (i.e. by Chazelle...

  2. Anatomy of a Mountain Range.

    Science.gov (United States)

    Chew, Berkeley

    1993-01-01

    Provides written tour of Colorado Rockies along San Juan Skyway in which the geological features and formation of the mountain range is explored. Discusses evidence of geologic forces and products such as plate tectonic movement and the Ancestral Rockies; subduction and the Laramide Orogeny; volcanism and calderas; erosion, faulting, land…

  3. Mobile Lunar Laser Ranging Station

    Science.gov (United States)

    Intellect, 1977

    1977-01-01

    Harlan Smith, chairman of the University of Texas's Astronomy Department, discusses a mobile lunar laser ranging station which could help determine the exact rates of movement between continents and help geophysicists understand earthquakes. He also discusses its application for studying fundamental concepts of cosmology and physics. (Editor/RK)

  4. Range Compressed Holographic Aperture Ladar

    Science.gov (United States)

    2017-06-01

    step 1. This image can be obtained through any digital holography processing technique and contains no range information. Since the penny has a... digital holography, laser, active imaging , remote sensing, laser imaging 16. SECURITY CLASSIFICATION OF: 17. LIMITATION OF ABSTRACT: SAR 8...30 15. Digital Hologram Image

  5. Mandibular movement range in children.

    Science.gov (United States)

    Machado, Barbara Cristina Zanandréa; Medeiros, Ana Paula Magalhães; Felício, Cláudia Maria de

    2009-01-01

    identification of the mandibular movement range is an important procedure in the evaluation of the stomatognathic system. However, there are few studies in children that focus on normal parameters or abnormalities. to determine the average range of mandibular movements in Brazilian children aged 6 to 12 years; to verify the difference between genders, in each age group, and between the different age groups: 6-8 years; 8.1-10 years; and 10.1-12 years. participants of the study were 240 healthy children selected among regular students from local schools of São Paulo State. The maximum mandibular opening, lateral excursion and protrusive movements, and deviation of the medium line, if present, were measured using a digital caliper. Student T test, Analysis of variance and Tukey test were considered significant for p mandibular opening; 7.71mm for lateral excursion to the right; 7.92mm for lateral excursion to the left; 7.45mm for protrusive movements. No statistical difference was observed between genders. There was a gradual increase in the range of mandibular movements, with significant differences mainly between the ages of 6-8 years and 10.1-12 years. during childhood the range of mandibular movements increases. Age should be considered in this analysis for a greater precision in the diagnosis.

  6. Oil Prices and Interest Rates: Do They Determine the Exchange Rate?

    Science.gov (United States)

    Law, I. A.; Old, J. L.

    1986-01-01

    Argues that the relationship between the British pound sterling, interest rates, and oil prices has been overemphasized by economic commentators because they ignored a basic economic theory about the determination of the exchange rate. Provides an example and suggestions for follow up instruction. (Author/JDH)

  7. Short-range communication system

    Science.gov (United States)

    Alhorn, Dean C. (Inventor); Howard, David E. (Inventor); Smith, Dennis A. (Inventor)

    2012-01-01

    A short-range communication system includes an antenna, a transmitter, and a receiver. The antenna is an electrical conductor formed as a planar coil with rings thereof being uniformly spaced. The transmitter is spaced apart from the plane of the coil by a gap. An amplitude-modulated and asynchronous signal indicative of a data stream of known peak amplitude is transmitted into the gap. The receiver detects the coil's resonance and decodes same to recover the data stream.

  8. Countering short range ballistic missiles

    OpenAIRE

    Conner, George W.; Ehiers, Mark A.; Marshall, Kneale T.

    1993-01-01

    Approved for public release; distribution is unlimited. Concepts commonly found in ASW search are used to model the flow and detection of mobile launchers for short range ballistic missiles. Emphasis is on detection and destruction of the launcher before launch. The benefit of pre-hostility intelligence and pre-missile-launch prosecution, the backbone of successful ASW, is revealed through the analysis of a circulation model which reflects the standard operations of a third world mobile mi...

  9. Medium Range Forecasts Representation (and Long Range Forecasts?)

    Science.gov (United States)

    Vincendon, J.-C.

    2009-09-01

    The progress of the numerical forecasts urges us to interest us in more and more distant ranges. We thus supply more and more forecasts with term of some days. Nevertheless, precautions of use are necessary to give the most reliable and the most relevant possible information. Available in a TV bulletin or on quite other support (Internet, mobile phone), the interpretation and the representation of a medium range forecast (5 - 15 days) must be different from those of a short range forecast. Indeed, the "foresee-ability” of a meteorological phenomenon decreases gradually in the course of the ranges, it decreases all the more quickly that the phenomenon is of small scale. So, at the end of some days, the probability character of a forecast becomes very widely dominating. That is why in Meteo-France the forecasts of D+4 to D+7 are accompanied with a confidence index since around ten years. It is a figure between 1 and 5: the more we approach 5, the more the confidence in the supplied forecast is good. In the practice, an indication is supplied for period D+4 / D+5, the other one for period D+6 / D+7, every day being able to benefit from a different forecast, that is be represented in a independent way. We thus supply a global tendency over 24 hours with less and less precise symbols as the range goes away. Concrete examples will be presented. From now on two years, we also publish forecasts to D+8 / J+9, accompanied with a sign of confidence (" good reliability " or " to confirm "). These two days are grouped together on a single map because for us, the described tendency to this term is relevant on a duration about 48 hours with a spatial scale slightly superior to the synoptic scale. So, we avoid producing more than two zones of types of weather over France and we content with giving an evolution for the temperatures (still, in increase or in decline). Newspapers began to publish this information, it should soon be the case of televisions. It is particularly

  10. Truthful approximations to range voting

    DEFF Research Database (Denmark)

    Filos-Ratsika, Aris; Miltersen, Peter Bro

    We consider the fundamental mechanism design problem of approximate social welfare maximization under general cardinal preferences on a finite number of alternatives and without money. The well-known range voting scheme can be thought of as a non-truthful mechanism for exact social welfare......-unilateral has an approximation ratio between 0.610 and 0.611, the best ordinal mechanism has an approximation ratio between 0.616 and 0.641, while the best mixed-unilateral mechanism has an approximation ratio bigger than 0.660. In particular, the best mixed-unilateral non-ordinal (i.e., cardinal) mechanism...

  11. Nonlinear dynamic range compression deconvolution

    Science.gov (United States)

    Haji-Saeed, Bahareh; Sengupta, Sandip K.; Goodhue, William; Khoury, Jed; Woods, Charles L.; Kierstead, John

    2006-07-01

    We introduce a dynamic range image compression technique for nonlinear deconvolution; the impulse response of the distortion function and the noisy distorted image are jointly transformed to pump a clean reference beam in a two-beam coupling arrangement. The Fourier transform of the pumped reference beam contains the deconvolved image and its conjugate. In contrast to standard deconvolution approaches, for which noise can be a limiting factor in the performance, this approach allows the retrieval of distorted signals embedded in a very high-noise environment.

  12. Kärlek i det västerländska samhället

    DEFF Research Database (Denmark)

    Engdahl, Emma

    2013-01-01

    Tornhill: Intersubjektivitet, erkännande och rationalitetens gränser •Jessica Benjamin: Herre och slav •Axel Honneth: Negativitetens verk •Helena Tinnerholm Ljungberg och Per-Anders Svärd: Njutning och dödsdrift •Yannis Stavrakakis: _ Den nationella njutningen – en framgångssaga?_ •Lee Edelman: För alltid...

  13. VizieR Online Data Catalog: Atomic Data for Neutron-Capture Elements. II (Sterling, 2011)

    Science.gov (United States)

    Sterling, N. C.

    2011-07-01

    'Direct' and 'Direct and resonant' photoionization cross sections are tabulated for neutral and the first five ions of Kr. Note that photoexcitation-autoionization resonances are not included in these data files. Names of the files are given by xdp.dat (xp.dat), e.g., kr2+xdp.dat (kr2+xp.dat) for photoionization of Kr2+ ions. Comments are indicated by '#' in the first column of a lines. The first two lines of a file are header information indicating the number of photon targets (ground state and metastable states in the ground configuration, with 1 the lowest energy) and number of energies. The photoionization cross section of each state is preceded by a comment giving the energy above the ground state (large negative number corresponds to 0), the first energy relative to that state (always a large negative number corresponding to zero), and the energy-order of that state (1 = ground state, 2 = first excited state, etc.). All energies are reported in Rydbergs, and cross sections in megabarns (10-18 cm2). Total and partial final state resolved dielectronic recombination rate coefficients are tabulated for the first six ions of Kr, in the ADAS adf09 and adf48 formats. Names of the files are given by adf09 (adf48), e.g., adf09kr2+ (adf48_kr2+) gives dielectronic recombination data for Kr2+ forming Kr+. The format of these files is complex, and beyond the scope of this README file. The reader is referred to http://amdpp.phys.strath.ac.uk/tamoc/RR/RR_web/appxa-09.pdf for a complete description of the adf09 and adf48 files format. (14 data files).

  14. Ut Pictura Poesis : dialéctica entre palabras e imagen en Sir William Sterling Maxwell

    Directory of Open Access Journals (Sweden)

    Hilary Macartney

    2002-01-01

    Full Text Available En el presente artículo se analiza la estrecha relación entre la historia del arte de Sir William Stirling Maxwell, su biblioteca y su colección artística. Este vínculo encierra la clave para la comprensión de su excepcional aportación a la historiografía del arte español. Sus diversas actividades, como historiador del arte, coleccionista de libros y cuadros, y director de ediciones privadas de libros raros, fueron todas manifestaciones de su gran fascinación por el paralelo entre la literatura y el arte, la palabra y la imagen. Tal relación se encuentra incluso en el esquema decorativo de su biblioteca.This article examines the remarkable unity between Sir William Stirling Maxwell's art history, his library and his art collection and argües that this relationship is the key to understanding his unique contribution to scholarship of Spanish art. In particular, it will be shown that his actlvities as an art historian, bibliophile, art collector and editor of prívate editions of rare books were all expressions of his fascination with the relationship between literature and art in general, and more specifically between word and image. Even the decorative scheme of his library emphasised this relationship.

  15. "Dancing" with Your Baby Means Sometimes Leading, Sometimes Following. Dr. Alice Sterling Honig Talks with Parents.

    Science.gov (United States)

    Honig, Alice Sterling

    1992-01-01

    Explains how parents can be their baby's partners in the "dance of development" by understanding the milestones, windows, and prerequisites of child development; by giving their baby the power and treasure of language; and by teaching their baby about kindness and beauty. (BB)

  16. Live Fire Range Environmental Assessment

    Energy Technology Data Exchange (ETDEWEB)

    None

    1993-08-01

    The Central Training Academy (CTA) is a DOE Headquarters Organization located in Albuquerque, New Mexico, with the mission to effectively and efficiently educate and train personnel involved in the protection of vital national security interests of DOE. The CTA Live Fire Range (LFR), where most of the firearms and tactical training occurs, is a complex separate from the main campus. The purpose of the proposed action is to expand the LFR to allow more options of implementing required training. The Department of Energy has prepared this Environmental Assessment (EA) for the proposed construction and operation of an expanded Live Fire Range Facility at the Central Training Academy in Albuquerque, New Mexico. Based on the analysis in the EA, DOE has determined that the proposed action is not a major Federal action significantly affecting the quality of the human environment, within the meaning of the National Environmental Policy Act (NEPA) of 1969. Therefore, the preparation of an environmental impact statement is not required and DOE is issuing this Finding of No Significant Impact (FONSI).

  17. Dynamic range majority data structures

    DEFF Research Database (Denmark)

    Elmasry, Amr Ahmed Abd Elmoneim; He, Meng; Munro, J. Ian

    2011-01-01

    data structure for answering range α-majority queries on a dynamic set of points, where α ε (0,1). Our data structure uses O(n) space, supports queries in O((lg n)/α) time, and updates in O((lg n)/α) amortized time. If the coordinates of the points are integers, then the query time can be improved to O......((lg n/(α lglg n)). For constant values of α, this improved query time matches an existing lower bound, for any data structure with polylogarithmic update time. We also generalize our data structure to handle sets of points in d-dimensions, for d ≥ 2, as well as dynamic arrays, in which each entry...

  18. Range Performance of Bombers Powered by Turbine-Propeller Power Plants

    Science.gov (United States)

    Cline, Charles W.

    1950-01-01

    Calculations have been made to find range? attainable by bombers of gross weights from l40,000 to 300,000 pounds powered by turbine-propeller power plants. Only conventional configurations were considered and emphasis was placed upon using data for structural and aerodynamic characteristics which are typical of modern military airplanes. An effort was made to limit the various parameters invoked in the airplane configuration to practical values. Therefore, extremely high wing loadings, large amounts of sweepback, and very high aspect ratios have not been considered. Power-plant performance was based upon the performance of a typical turbine-propeller engine equipped with propellers designed to maintain high efficiencies at high-subsonic speeds. Results indicated, in general, that the greatest range, for a given gross weight, is obtained by airplanes of high wing loading, unless the higher cruising speeds associated with the high-wing-loading airplanes require-the use of thinner wing sections. Further results showed the effect of cruising at-high speeds, of operation at very high altitudes, and of carrying large bomb loads.

  19. Eglin Gulf Test and Training Range: Final Programmatic Environmental Assessment

    Science.gov (United States)

    2002-11-01

    Information System (LMRIS),” Cecilia R. Burrus, SPAWAR Systems Center. April 22, 1999 Naval Air Systems Command, 1995. "Environmental Assessment... Payne , 1974) show that breaching 1-pound shots at 1.5 feet and 3 feet exhibit normal image-interference directional source effects. It is expected...NAVORD Rept 478 (1949) Bluy, O.Z. and F. A. Payne , 1974. “Angular dependence of Spectral Shapes of Near-Surface Fired Charges,” J. Acoust. Soc

  20. Tank Investigation of a Powered Dynamic Model of a Large Long-Range Flying Boat

    Science.gov (United States)

    Parkinson, John B; Olson, Roland E; Harr, Marvin I

    1947-01-01

    Principles for designing the optimum hull for a large long-range flying boat to meet the requirements of seaworthiness, minimum drag, and ability to take off and land at all operational gross loads were incorporated in a 1/12-size powered dynamic model of a four-engine transport flying boat having a design gross load of 165,000 pounds. These design principles included the selection of a moderate beam loading, ample forebody length, sufficient depth of step, and close adherence to the form of a streamline body. The aerodynamic and hydrodynamic characteristics of the model were investigated in Langley tank no. 1. Tests were made to determine the minimum allowable depth of step for adequate landing stability, the suitability of the fore-and-aft location of the step, the take-off performance, the spray characteristics, and the effects of simple spray-control devices. The application of the design criterions used and test results should be useful in the preliminary design of similar large flying boats.

  1. Longer term clinical and economic benefits of offering acupuncture care to patients with chronic low back pain.

    Science.gov (United States)

    Thomas, K J; MacPherson, H; Ratcliffe, J; Thorpe, L; Brazier, J; Campbell, M; Fitter, M; Roman, M; Walters, S; Nicholl, J P

    2005-08-01

    randomised to the offer of acupuncture care chose to receive acupuncture treatment, and received an average of eight acupuncture treatments within the trial. Analysis of covariance, adjusting for baseline score, found an intervention effect of 5.6 points on the SF-36 Pain dimension [95% confidence interval (CI) -1.3 to 12.5] in favour of the acupuncture group at 12 months, and 8 points (95% CI 0.7 to 15.3) at 24 months. No evidence of heterogeneity of effect was found for the different acupuncturists. Patients receiving acupuncture care did not report any serious or life-threatening events. No significant treatment effect was found for any of the SF-36 dimensions other than Pain, or for the PPI or the ODI. Patients receiving acupuncture care reported a significantly greater reduction in worry about their back pain at 12 and 24 months compared with the usual care group. At 24 months, the acupuncture care group was significantly more likely to report 12 months pain free and less likely to report the use of medication for pain relief. The acupuncture service was found to be cost-effective at 24 months; the estimated cost per quality-adjusted (QALY) was 4241 pounds sterling (95% CI 191 pounds sterling to 28,026 pounds sterling) using the SF-6D scoring algorithm based on responses to the SF-36, and 3598 pounds sterling (95% CI 189 pounds sterling to 22,035 pounds sterling) using the EQ-5D health status instrument. The NHS costs were greater in the acupuncture care group than in the usual care group. However, the additional resource use was less than the costs of the acupuncture treatment itself, suggesting that some usual care resource use was offset. Traditional acupuncture care delivered in a primary care setting was safe and acceptable to patients with non-specific low back pain. Acupuncture care and usual care were both associated with clinically significant improvement at 12- and 24-month follow-up. Acupuncture care was significantly more effective in reducing bodily pain

  2. Qualidade físico-química de mortadelas e carnes moídas e conhecimento dos consumidores na conservação destes produtos Quality physicist-chemistry of mortadelas and pounded meats and knowledge of the consumer in the conservation of these

    Directory of Open Access Journals (Sweden)

    Fernanda Vilares Escaleira da Conceição

    2009-06-01

    Full Text Available Produtos cárneos apresentam uma composição que facilita sua deterioração, e cuidados desde a produção ao consumo garantem sua qualidade. Avaliaram-se pH, temperatura, cálcio, umidade, gás sulfídrico e sulfito de carnes moídas e mortadelas, e o conhecimento do consumidor na conservação destes produtos. Quanto ao pH, todas as amostras de carnes moídas e duas de mortadelas estavam fora do padrão estabelecido por LANARA. A temperatura de 60% das amostras estava superior ao preconizado. Todas as amostras estavam dentro dos padrões quanto ao teor de cálcio e umidade. Todas as carnes moídas e 92% das mortadelas apresentaram gás sulfídrico. A presença de sulfito foi observada em 47% das carnes moídas. Analisando-se os rótulos observou-se que 20% das mortadelas não condiziam quanto ao teor de cálcio e 57% das mortadelas e 40% das carnes moídas não condiziam com o valor estabelecido para a umidade. Apenas 60% dos consumidores observam a temperatura de conservação dos produtos cárneos nos postos de vendas, mas isto é feito utilizando o "tato", o que obviamente não condiz com o valor real da temperatura, e é comum o congelamento destes na própria embalagem. Acredita-se que a indústria e o estabelecimento comercializador devam ser fiscalizados com maior rigor e que ações educativas do consumidor devam ser estimuladas visando a garantia da qualidade no setor de alimentos.Meat products present a composition that facilitates its deterioration. Cares since the production to the consumption guarantee its quality. Was evaluated pH, temperature, calcium, humidity, sulfídrico gas and sulfite of pounded meats and mortadelas, and the knowledge of the consumer in the conservation of these. Respecting to pH, all the samples of pounded meats and 2 of mortadelas were of the established one for LANARA. The temperature of 60% of the samples was superior to the praised one. All the samples were inside of the standards respecting to the

  3. Radar range measurements in the atmosphere.

    Energy Technology Data Exchange (ETDEWEB)

    Doerry, Armin Walter

    2013-02-01

    The earths atmosphere affects the velocity of propagation of microwave signals. This imparts a range error to radar range measurements that assume the typical simplistic model for propagation velocity. This range error is a function of atmospheric constituents, such as water vapor, as well as the geometry of the radar data collection, notably altitude and range. Models are presented for calculating atmospheric effects on radar range measurements, and compared against more elaborate atmospheric models.

  4. A Feasibility Study of the Flare-Cylinder Configuration as a Reentry Body Shape for an Intermediate Range Ballistic Missile

    Science.gov (United States)

    Garland, B. J.; Hall, J. R.

    1958-01-01

    A study has been made of a flare-cylinder configuration to investigate its feasibility as a reentry body of an intermediate range ballistic missile. Factors considered were heating, weight, stability, and impact velocity. A series of trajectories covering the possible range of weight-drag ratios were computed for simple truncated nose shapes of varying pointedness, and hence varying weight-drag ratios. Four trajectories were chosen for detailed temperature computation from among those trajectories estimated to be possible. Temperature calculations were made for both "conventional" (for example, copper, Inconel, and stainless steel) and "unconventional" (for example, beryllium and graphite) materials. Results of the computations showed that an impact Mach number of 0.5 was readily obtainable for a body constructed from conventional materials. A substantial increase in subsonic impact velocity above a Mach number of 0.5 was possible without exceeding material temperature limits. A weight saving of up to 134 pounds out of 822 was possible with unconventional materials. This saving represents 78 percent of the structural weight. Supersonic impact would require construction of the body from unconventional materials but appeared to be well within the range of attainability.

  5. Colored Range Searching in Linear Space

    DEFF Research Database (Denmark)

    Grossi, Roberto; Vind, Søren Juhl

    2014-01-01

    In colored range searching, we are given a set of n colored points in d ≥ 2 dimensions to store, and want to support orthogonal range queries taking colors into account. In the colored range counting problem, a query must report the number of distinct colors found in the query range, while...... an answer to the colored range reporting problem must report the distinct colors in the query range. We give the first linear space data structure for both problems in two dimensions (d = 2) with o(n) worst case query time. We also give the first data structure obtaining almost-linear space usage and o...

  6. WPC's Short Range Forecast Coded Bulletin

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Short Range Forecast Coded Bulletin. The Short Range Forecast Coded Bulletin describes the expected locations of high and low pressure centers, surface frontal...

  7. Range-Based Auto-Focus Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Maracel Systems and Software Technologies, LLC proposes a revolutionary Range-Based Auto Focus (RBAF) system that will combine externally input range, such as might...

  8. Report to Congress on Sustainable Ranges, 2008

    Science.gov (United States)

    2008-01-01

    Air Facility Quantico in FY2008. RAICUZ studies at Townsend Range, Chocolate Mountain Aerial Gunnery Range, and Barry M Goldwater Range-West are on...representatives from Arizona, California, Nevada, New Mexico and Utah and other interested stakeholders. Part of the working group’s tactical

  9. Compressed Data Structures for Range Searching

    DEFF Research Database (Denmark)

    Bille, Philip; Gørtz, Inge Li; Vind, Søren Juhl

    2015-01-01

    matrices and web graphs. Our contribution is twofold. First, we show how to compress geometric repetitions that may appear in standard range searching data structures (such as K-D trees, Quad trees, Range trees, R-trees, Priority R-trees, and K-D-B trees), and how to implement subsequent range queries......We study the orthogonal range searching problem on points that have a significant number of geometric repetitions, that is, subsets of points that are identical under translation. Such repetitions occur in scenarios such as image compression, GIS applications and in compactly representing sparse...... that supports range searching....

  10. An algorithm for segmenting range imagery

    Energy Technology Data Exchange (ETDEWEB)

    Roberts, R.S.

    1997-03-01

    This report describes the technical accomplishments of the FY96 Cross Cutting and Advanced Technology (CC&AT) project at Los Alamos National Laboratory. The project focused on developing algorithms for segmenting range images. The image segmentation algorithm developed during the project is described here. In addition to segmenting range images, the algorithm can fuse multiple range images thereby providing true 3D scene models. The algorithm has been incorporated into the Rapid World Modelling System at Sandia National Laboratory.

  11. Report to Congress on Sustainable Ranges, 2010

    Science.gov (United States)

    2010-05-01

    Continuing to work with JIOR to provide a mobile service which can be deployed at the Urban Operations Complex ( UOC ) on Range 62. Electronic Combat...range; some means of facilitating IO play but no organic capability. NTTR continuing to work with JIOR to provide a mobile service to deploy at UOC ...no organic capability. Continuing to work with JIOR to provide a mobile service which can be deployed at the UOC . Collective Ranges Information

  12. Report to Congress on Sustainable Ranges, 2015

    Science.gov (United States)

    2015-03-01

    no organic capability. HQ NTTR continues to work with JIOR to provide a mobile service which can be deployed at the Urban Operations Complex ( UOC ...NTTR continues to work with JIOR to provide a mobile service which can be deployed at the Urban Operations Complex ( UOC ) on Range 62. Electronic... UOC ) on Range 62. Electronic Combat Support h The range lacks a complete electronic target set. EA platforms do not get real-time feedback on their

  13. Supersymmetric inversion of effective-range expansions

    OpenAIRE

    Midya, Bikashkali; Evrard, Jérémie; Abramowicz, Sylvain; Ramirez Suarez, Oscar Leonardo; Sparenberg, Jean-Marc

    2015-01-01

    A complete and consistent inversion technique is proposed to derive an accurate interaction potential from an effective-range function for a given partial wave in the neutral case. First, the effective-range function is Taylor or Pad\\'e expanded, which allows high precision fitting of the experimental scattering phase shifts with a minimal number of parameters on a large energy range. Second, the corresponding poles of the scattering matrix are extracted in the complex wave-number plane. Thir...

  14. Range contraction in large pelagic predators.

    Science.gov (United States)

    Worm, Boris; Tittensor, Derek P

    2011-07-19

    Large reductions in the abundance of exploited land predators have led to significant range contractions for those species. This pattern can be formalized as the range-abundance relationship, a general macroecological pattern that has important implications for the conservation of threatened species. Here we ask whether similar responses may have occurred in highly mobile pelagic predators, specifically 13 species of tuna and billfish. We analyzed two multidecadal global data sets on the spatial distribution of catches and fishing effort targeting these species and compared these with available abundance time series from stock assessments. We calculated the effort needed to reliably detect the presence of a species and then computed observed range sizes in each decade from 1960 to 2000. Results suggest significant range contractions in 9 of the 13 species considered here (between 2% and 46% loss of observed range) and significant range expansions in two species (11-29% increase). Species that have undergone the largest declines in abundance and are of particular conservation concern tended to show the largest range contractions. These include all three species of bluefin tuna and several marlin species. In contrast, skipjack tuna, which may have increased its abundance in the Pacific, has also expanded its range size. These results mirror patterns described for many land predators, despite considerable differences in habitat, mobility, and dispersal, and imply ecological extirpation of heavily exploited species across parts of their range.

  15. California Tiger Salamander Range - CWHR [ds588

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  16. Oregon Spotted Frog Range - CWHR [ds597

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  17. Caspian Tern Range - CWHR [ds604

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  18. Willow Flycatcher Range - CWHR [ds594

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  19. Western Pond Turtle Range - CWHR [ds598

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  20. Great Blue Heron Range - CWHR [ds609

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  1. Black Swift Range - CWHR [ds605

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  2. Bank Swallow Range - CWHR [ds606

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  3. Northern Leopard Frog Range - CWHR [ds593

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  4. Yellow Warbler Range - CWHR [ds607

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  5. Great Egret Range - CWHR [ds610

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  6. Black Rail Range - CWHR [ds595

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  7. Cascades Frog Range - CWHR [ds591

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  8. Western spadefoot Range - CWHR [ds590

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  9. Bald Eagle Range - CWHR [ds600

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  10. Close range photogrammetry and machine vision

    CERN Document Server

    Atkinson, KB

    1996-01-01

    This book presents the methodology, algorithms, techniques and equipment necessary to achieve real time digital photogrammetric solutions, together with contemporary examples of close range photogrammetry.

  11. Long-Range WindScanner System

    DEFF Research Database (Denmark)

    Vasiljevic, Nikola; Lea, Guillaume; Courtney, Michael

    2016-01-01

    The technical aspects of a multi-Doppler LiDAR instrument, the long-range WindScanner system, are presented accompanied by an overview of the results from several field campaigns. The long-range WindScanner system consists of three spatially-separated, scanning coherent Doppler LiDARs and a remote......-rangeWindScanner system measures the wind field by emitting and directing three laser beams to intersect, and then scanning the beam intersection over a region of interest. The long-range WindScanner system was developed to tackle the need for high-quality observations of wind fields on scales of modern wind turbine...

  12. Software for computing and annotating genomic ranges.

    Directory of Open Access Journals (Sweden)

    Michael Lawrence

    Full Text Available We describe Bioconductor infrastructure for representing and computing on annotated genomic ranges and integrating genomic data with the statistical computing features of R and its extensions. At the core of the infrastructure are three packages: IRanges, GenomicRanges, and GenomicFeatures. These packages provide scalable data structures for representing annotated ranges on the genome, with special support for transcript structures, read alignments and coverage vectors. Computational facilities include efficient algorithms for overlap and nearest neighbor detection, coverage calculation and other range operations. This infrastructure directly supports more than 80 other Bioconductor packages, including those for sequence analysis, differential expression analysis and visualization.

  13. Snowy Egret Range - CWHR [ds611

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  14. Giant Garter Snake Range - CWHR [ds599

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  15. Ultrasonic range measurements on the human body

    NARCIS (Netherlands)

    Weenk, D.; van Beijnum, Bernhard J.F.; Droog, Adriaan; Hermens, Hermanus J.; Veltink, Petrus H.

    2013-01-01

    Ambulatory range estimation on the human body is important for the assessment of the performance of upper- and lower limb tasks outside a laboratory. In this paper an ultrasound sensor for estimating ranges on the human body is presented and validated during gait. The distance between the feet is

  16. 5 CFR 534.502 - Pay range.

    Science.gov (United States)

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Pay range. 534.502 Section 534.502 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PAY UNDER OTHER SYSTEMS Pay for Senior-Level and Scientific and Professional Positions § 534.502 Pay range. A pay rate fixed under this...

  17. Flinders Mountain Range, South Australia Province, Australia

    Science.gov (United States)

    1983-01-01

    Classic examples of folded mountain ranges and wind erosion of geologic structures abound in the Flinders Mountain Range (30.5S, 139.0E), South Australia province, Australia. Winds from the deserts to the west gain speed as they blow across the barren surface and create interesting patterns as they funnel through the gullies and valleys.

  18. Report to Congress on Sustainable Ranges

    Science.gov (United States)

    2007-07-01

    Laysan Albatrosses , and the recovery of a shoreline/littoral zone when human traffic is limited to security vehicles and personnel. This range...Requirements Module (ARRM) and feed the Installation Status C-8 July 2007 2007 SUSTAINABLE RANGES REPORT Report-Natural Infrastructure (see

  19. On the validity range of piston theory

    CSIR Research Space (South Africa)

    Meijer, M-C

    2015-06-01

    Full Text Available as the analytical validity range for linear piston theory as based in potential flows. The range of validity of single-term nonlinear extensions to the linear potential equation into the transonic and hypersonic regions is treated. A brief review of the development...

  20. Range management research, Fort Valley Experimental Forest

    Science.gov (United States)

    Henry A. Pearson; Warren P. Clary; Margaret M. Moore; Carolyn Hull Sieg

    2008-01-01

    Range management research at the Fort Valley Experimental Forest during the past 100 years has provided scientific knowledge for managing ponderosa pine forests and forest-range grazing lands in the Southwest. Three research time periods are identified: 1908 to 1950, 1950 to 1978, and 1978 to 2008. Early research (1908-1950) addressed ecological effects of livestock...

  1. Undergraduate range management exam: 1999-2014

    Science.gov (United States)

    The Undergraduate Range Management Exam (URME) has been administered to undergraduate students at the Annual Meeting of the Society for Range Management since 1983, with students demonstrating their higher order learning skills and synthesis knowledge of the art and science of rangeland management. ...

  2. Selected Bibliography On Southern Range Management

    Science.gov (United States)

    R. S. Campbell; L. K. Halls; H. P. Morgan

    1963-01-01

    The purpose of this bibliography is to list important publications relating directly to southern ranges, the domestic livestock and wildlife produced thereon, and the management of these lands, livestock, and wildlife. Range is defined as natural grassland, savannah, or forest that supports native grasses, forbs, or shrubs suitable as forage for livestock and game....

  3. New data structures for orthogonal range searching

    DEFF Research Database (Denmark)

    Alstrup, Stephen; Brodal, Gerth Stølting; Rauhe, Theis

    2000-01-01

    We present new general techniques for static orthogonal range searching problems in two and higher dimensions. For the general range reporting problem in R3, we achieve query time O(log n+k) using space O(n log1+ε n), where n denotes the number of stored points and k the number of points to be re...

  4. Tests of Gravity Using Lunar Laser Ranging

    Directory of Open Access Journals (Sweden)

    Stephen M. Merkowitz

    2010-11-01

    Full Text Available Lunar laser ranging (LLR has been a workhorse for testing general relativity over the past four decades. The three retroreflector arrays put on the Moon by the Apollo astronauts and the French built arrays on the Soviet Lunokhod rovers continue to be useful targets, and have provided the most stringent tests of the Strong Equivalence Principle and the time variation of Newton’s gravitational constant. The relatively new ranging system at the Apache Point 3.5 meter telescope now routinely makes millimeter level range measurements. Incredibly, it has taken 40 years for ground station technology to advance to the point where characteristics of the lunar retroreflectors are limiting the precision of the range measurements. In this article, we review the gravitational science and technology of lunar laser ranging and discuss prospects for the future.

  5. Ranging Behaviour of Commercial Free-Range Broiler Chickens 2: Individual Variation.

    Science.gov (United States)

    Taylor, Peta S; Hemsworth, Paul H; Groves, Peter J; Gebhardt-Henrich, Sabine G; Rault, Jean-Loup

    2017-07-20

    Little is known about broiler chicken ranging behaviour. Previous studies have monitored ranging behaviour at flock level but whether individual ranging behaviour varies within a flock is unknown. Using Radio Frequency Identification technology, we tracked 1200 individual ROSS 308 broiler chickens across four mixed sex flocks in two seasons on one commercial farm. Ranging behaviour was tracked from first day of range access (21 days of age) until 35 days of age in winter flocks and 44 days of age in summer flocks. We identified groups of chickens that differed in frequency of range visits: chickens that never accessed the range (13 to 67% of tagged chickens), low ranging chickens (15 to 44% of tagged chickens) that accounted for <15% of all range visits and included chickens that used the range only once (6 to 12% of tagged chickens), and high ranging chickens (3 to 9% of tagged chickens) that accounted for 33 to 50% of all range visits. Males spent longer on the range than females in winter (p < 0.05). Identifying the causes of inter-individual variation in ranging behaviour may help optimise ranging opportunities in free-range systems and is important to elucidate the potential welfare implications of ranging.

  6. Long-Range Persistence Techniques Evaluated

    Science.gov (United States)

    Witt, A.; Malamud, B. D.

    2006-12-01

    Many time series in the Earth Sciences exhibit persistence (memory) where large values (small values) `cluster' together. Here we examine long-range persistence, where one value is correlated with all others in the time series. A time series is long-range persistent (a self-affine fractal) if the power spectral density scales with a power law. The scaling exponent beta characterizes the `strength' of persistence. We compare five common analysis techniques for quantifying long-range persistence: (a) Power-spectral analysis, (b) Wavelet variance analysis, (c) Detrended Fluctuation analysis, (d) Semivariogram analysis, and (e) Rescaled-Range (R/S) analysis. To evaluate these methods, we construct 26,000 synthetic fractional noises with lengths between 512 and 4096, different persistence strengths, different distributions (normal, log-normal, levy), and using different construction methods: Fourier filtering, discrete wavelets, random additions, and Mandelbrot `cartoon' Brownian motions. We find: (a) Power-spectral and wavelet analyses are the most robust for measuring long-range persistence across all beta, although `antipersistence' is over-estimated for non- Gaussian time series. (b) Detrended Fluctuation Analysis is appropriate for signals with long-range persistence strength beta between -0.2 and 2.8 and has very large 95% confidence intervals for non-Gaussian signals. (c) Semivariograms are appropriate for signals with long-range persistence strength between 1.0 and 2.8; it has large confidence intervals and systematically underestimates log-normal noises in this range. (d) Rescaled- Range Analysis is only accurate for beta of about 0.7. We conclude some techniques are much better suited than others for quantifying long-range persistence, and the resultant beta (and associated error bars on them) are sensitive to the one point probability distribution, the length of the time series, and the techniques used.

  7. Illuminating geographical patterns in species' range shifts.

    Science.gov (United States)

    Grenouillet, Gaël; Comte, Lise

    2014-10-01

    Species' range shifts in response to ongoing climate change have been widely documented, but although complex spatial patterns in species' responses are expected to be common, comprehensive comparisons of species' ranges over time have undergone little investigation. Here, we outline a modeling framework based on historical and current species distribution records for disentangling different drivers (i.e. climatic vs. nonclimatic) and assessing distinct facets (i.e. colonization, extirpation, persistence, and lags) of species' range shifts. We used extensive monitoring data for stream fish assemblages throughout France to assess range shifts for 32 fish species between an initial period (1980-1992) and a contemporary one (2003-2009). Our results provide strong evidence that the responses of individual species varied considerably and exhibited complex mosaics of spatial rearrangements. By dissociating range shifts in climatically suitable and unsuitable habitats, we demonstrated that patterns in climate-driven colonization and extirpation were less marked than those attributed to nonclimatic drivers, although this situation could rapidly shift in the near future. We also found evidence that range shifts could be related to some species' traits and that the traits involved varied depending on the facet of range shift considered. The persistence of populations in climatically unsuitable areas was greater for short-lived species, whereas the extent of the lag behind climate change was greater for long-lived, restricted-range, and low-elevation species. We further demonstrated that nonclimatic extirpations were primarily related to the size of the species' range, whereas climate-driven extirpations were better explained by thermal tolerance. Thus, the proposed framework demonstrated its potential for markedly improving our understanding of the key processes involved in range shifting and also offers a template for informing management decisions. Conservation strategies

  8. Short range DFT combined with long-range local RPA within a range-separated hybrid DFT framework

    CERN Document Server

    Chermak, E; Mussard, Bastien; Angyan, Janos

    2015-01-01

    Selecting excitations in localized orbitals to calculate long-range correlation contributions to range-separated density-functional theory can reduce the overall computational effort significantly. Beyond simple selection schemes of excited determinants, the dispersion-only approximation, which avoids counterpoise-corrected monomer calculations, is shown to be particularly interesting in this context, which we apply to the random-phase approximation. The approach has been tested on dimers of formamide, water, methane and benzene.

  9. Storm surge and tidal range energy

    Science.gov (United States)

    Lewis, Matthew; Angeloudis, Athanasios; Robins, Peter; Evans, Paul; Neill, Simon

    2017-04-01

    The need to reduce carbon-based energy sources whilst increasing renewable energy forms has led to concerns of intermittency within a national electricity supply strategy. The regular rise and fall of the tide makes prediction almost entirely deterministic compared to other stochastic renewable energy forms; therefore, tidal range energy is often stated as a predictable and firm renewable energy source. Storm surge is the term used for the non-astronomical forcing of tidal elevation, and is synonymous with coastal flooding because positive storm surges can elevate water-levels above the height of coastal flood defences. We hypothesis storm surges will affect the reliability of the tidal range energy resource; with negative surge events reducing the tidal range, and conversely, positive surge events increasing the available resource. Moreover, tide-surge interaction, which results in positive storm surges more likely to occur on a flooding tide, will reduce the annual tidal range energy resource estimate. Water-level data (2000-2012) at nine UK tide gauges, where the mean tidal amplitude is above 2.5m and thus suitable for tidal-range energy development (e.g. Bristol Channel), were used to predict tidal range power with a 0D modelling approach. Storm surge affected the annual resource estimate by between -5% to +3%, due to inter-annual variability. Instantaneous power output were significantly affected (Normalised Root Mean Squared Error: 3%-8%, Scatter Index: 15%-41%) with spatial variability and variability due to operational strategy. We therefore find a storm surge affects the theoretical reliability of tidal range power, such that a prediction system may be required for any future electricity generation scenario that includes large amounts of tidal-range energy; however, annual resource estimation from astronomical tides alone appears sufficient for resource estimation. Future work should investigate water-level uncertainties on the reliability and

  10. 2008 NASA Range Safety Annual Report

    Science.gov (United States)

    Lamoreaux, Richard W.

    2008-01-01

    Welcome to the 2008 edition of the NASA Range Safety Annual Report. Funded by NASA Headquarters, this report provides a NASA Range Safety overview for current and potential range users. This year, along with full length articles concerning various subject areas, we have provided updates to standard subjects with links back to the 2007 original article. Additionally, we present summaries from the various NASA Range Safety Program activities that took place throughout the year, as well as information on several special projects that may have a profound impact on the way we will do business in the future. The sections include a program overview and 2008 highlights of Range Safety Training; Range Safety Policy; Independent Assessments and Common Risk Analysis Tools Development; Support to Program Operations at all ranges conducting NASA launch operations; a continuing overview of emerging Range Safety-related technologies; Special Interests Items that include recent changes in the ELV Payload Safety Program and the VAS explosive siting study; and status reports from all of the NASA Centers that have Range Safety responsibilities. As is the case each year, contributors to this report are too numerous to mention, but we thank individuals from the NASA Centers, the Department of Defense, and civilian organizations for their contributions. We have made a great effort to include the most current information available. We recommend that this report be used only for guidance and that the validity and accuracy of all articles be verified for updates. This is the third year we have utilized this web-based format for the annual report. We continually receive positive feedback on the web-based edition, and we hope you enjoy this year's product as well. It has been a very busy and productive year on many fronts as you will note as you review this report. Thank you to everyone who contributed to make this year a successful one, and I look forward to working with all of you in the

  11. Expert systems and ballistic range data analysis

    Science.gov (United States)

    Hathaway, Wayne; Steinhoff, Mark; Whyte, Robert; Brown, David; Choate, Jeff; Adelgren, Russ

    1992-07-01

    A program aimed at the development of an expert system for the reduction of ballistic range data is described. The program applies expert system and artificial intelligence techniques to develop a mathematically complex state-of-the-art spark range data reduction procedure that includes linear theory and six-degree-of-freedom analysis. The scope of the knowledge base includes both spin and statically stable vehicles. The expert system is expected to improve the quality of the data reduction process while reducing the work load on the senior range engineer.

  12. Remote sensing applications for range management

    Science.gov (United States)

    Haas, R. H.

    1981-01-01

    The use of satellite information for range management is discussed. The use of infrared photography and color photography for analysis of vegetation cover is described. The methods of interpreting LANDSAT imagery are highlighted and possible applications of such interpretive methods to range management are considered. The concept of using LANDSAT as a sampling frame for renewable natural resource inventories was examined. It is concluded that a blending of LANDSAT vegetation data with soils and digital terrain data, will define a basic sampling unit that is appropriate for range management utilization.

  13. Kenai National Moose Range : Narrative report : 1968

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Kenai National Moose Range outlines Refuge accomplishments during the 1968 calendar year. The report begins by summarizing the...

  14. Long-Range Nondestructive Testing System Project

    Data.gov (United States)

    National Aeronautics and Space Administration — This proposal is for the development of a long range, multi-point non-destructive system for the detection of subsurface flaws in metallic and composite materials of...

  15. Arctic National Wildlife Range, Annual Narrative Report

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The Arctic National Wildlife Range (ANWR) was established by executive order in 1960 for the purpose of preserving unique wildlife, wilderness and recreational...

  16. Range ecosystem management for natural areas

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report describes methods for managing range ecosystems in natural areas. Preserved natural areas on rangeland may, in a short time, be only those which received...

  17. Mountain ranges favour vigorous Atlantic meridional overturning

    National Research Council Canada - National Science Library

    Bablu Sinha; Adam T. Blaker; Joël J.-M. Hirschi; Sarah Bonham; Matthew Brand; Simon Josey; Robin S. Smith; Jochem Marotzke

    2012-01-01

      We use a global Ocean-Atmosphere General Circulation Model (OAGCM) to show that the major mountain ranges of the world have a significant role in maintenance of the Atlantic Meridional Overturning Circulation (AMOC...

  18. Final Range Wide Environmental Impact Statement

    National Research Council Canada - National Science Library

    Botdorf, Charles

    2001-01-01

    This Final Range Wide Environmental Impact Statement presents the impacts associated with the direct, indirect, and cumulative effects of mission diversification and changes to land use for Yuma Proving Ground, Arizona...

  19. VT E911 road address range geocoder

    Data.gov (United States)

    Vermont Center for Geographic Information — VT E911 road address range geocoder. VCGI, in collaboration with the VT E911 Board, has created a suite of geocoding services that can be used to batch geocode...

  20. Compact ranges in antenna and RCS measurements

    Science.gov (United States)

    Audone, B.

    1989-09-01

    With the increased complexity and extended frequency range of operation model measurements and far field test ranges are no longer suitable to satisfy the demand of accurate testing. Moreover plane wave test conditions are required for Radar Cross Section (RCS) measurements which represent a key point in stealth technology. Compact ranges represent the best test facilities available presently since they allow for indoor measurements under far field conditions in real time without any calculation effort. Several types of compact ranges are described and compared discussing their relevant advantages with regard to RCS and antenna measurements. In parallel to measuring systems sophisticated computer models were developed with such a high level of accuracy that it is questionable whether experiments give better results than theory. Tests performed on simple structures show the correlation between experimental results and theoretical ones derived on the basis of GTD computer codes.

  1. Worst-Case Efficient Range Searching

    DEFF Research Database (Denmark)

    Arge, Lars Allan

    2009-01-01

    In this tutorial we will describe some of the recent advances in the development of worst-case efficient range search indexing structures, that is, structures for storing a set of data points such that the points in a axis-parallel (hyper-) query rectangle can be found efficiently (with as few disk...... discuss the external priority search tree [8], which solves a restricted version of the two-dimensional version of the problem where the query rectangle is unbounded on one side. This structure is then used in a range tree index structure [8, 21] that answers general two-dimensional queries in the same......, 17], as well as recent index structures for higher-dimensional range search indexing [1]. We end by mentioning various R-tree variant [7, 18, 15] that can be used to solve the extended version of range search indexing where the queries as well as the data are (hyper-) rectangles. More comprehensive...

  2. Comparative analysis of planetary laser ranging concepts

    Science.gov (United States)

    Dirkx, D.; Bauer, S.; Noomen, R.; Vermeersen, B. L. A.; Visser, P. N.

    2014-12-01

    Laser ranging is an emerging technology for tracking interplanetary missions, offering improved range accuracy and precision (mm-cm), compared to existing DSN tracking. The ground segment uses existing Satellite Laser Ranging (SLR) technology, whereas the space segment is modified with an active system. In a one-way system, such as that currently being used on the LRO spacecraft (Zuber et al., 2010), only an active detector is required on the spacecraft. For a two-way system, such as that tested by using the laser altimeter system on the MESSENGER spacecraft en route to Mercury (Smith et al., 2006), a laser transmitter system is additionally placed on the space segment, which will asynchronously fire laser pulses towards the ground stations. Although the one-way system requires less hardware, clock errors on both the space and ground segments will accumulate over time, polluting the range measurements. For a two-way system, the range measurements are only sensitive to clock errors integrated over the the two-way light time.We investigate the performance of both one- and two-way laser range systems by simulating their operation. We generate realizations of clock error time histories from Allan variance profiles, and use them to create range measurement error profiles. We subsequently perform the orbit determination process from this data to quanitfy the system's performance. For our simulations, we use two test cases: a lunar orbiter similar to LRO and a Phobos lander similar to the Phobos Laser Ranging concept (Turyshev et al., 2010). For the lunar orbiter, we include an empirical model for unmodelled non-gravitational accelerations in our truth model to include errors ihe dynamics. We include the estimation of clock parameters over a number of arc lengths for our simulations of the one-way range system and use a variety of state arc durations for the lunar orbiter simulations.We perform Monte Carlo simulations and generate true error distributions for both

  3. Adaptive and Approximate Orthogonal Range Counting

    DEFF Research Database (Denmark)

    Chan, Timothy M.; Wilkinson, Bryan Thomas

    2013-01-01

    ]. •We give an O(n loglog n)-space data structure for approximate 2-D orthogonal range counting that can compute a (1+δ)-factor approximation to the count in O(loglog n) time for any fixed constant δ>0. Again, our bounds match the state of the art for the 2-D orthogonal range emptiness problem. •Lastly...

  4. Vehicle Based Laser Range Finding in Crops

    OpenAIRE

    Hans-Juergen Horn; Rolf Adamek; Detlef Ehlert

    2009-01-01

    Laser rangefinders and laser scanners are widely used for industrial purposes and for remote sensing. In agriculture information about crop parameters like volume, height, and density can support the optimisation of production processes. In scientific papers the measurement of these parameters by low cost laser rangefinders with one echo has been presented for short ranges. Because the cross section area of the beam increases with the measuring range, it can be expected that laser rangefinder...

  5. Long-Range Order in β Brass

    DEFF Research Database (Denmark)

    Norvell, J.C.; Als-Nielsen, Jens Aage

    1970-01-01

    The long-range order parameter M of β brass has been determined from measurements of the intensity of superlattice reflections of Bragg-scattered neutrons. Over the whole temperature range T=300 °K to T=Tc=736 °K, the data are in remarkable agreement with the prediction for the compressible Ising...... bcc lattice with only nearest-neighbor interactions. © 1970 The American Physical Society...

  6. High Dynamic Range Digital Imaging of Spacecraft

    Science.gov (United States)

    Karr, Brian A.; Chalmers, Alan; Debattista, Kurt

    2014-01-01

    The ability to capture engineering imagery with a wide degree of dynamic range during rocket launches is critical for post launch processing and analysis [USC03, NNC86]. Rocket launches often present an extreme range of lightness, particularly during night launches. Night launches present a two-fold problem: capturing detail of the vehicle and scene that is masked by darkness, while also capturing detail in the engine plume.

  7. Long range electrostatic forces in ionic liquids.

    Science.gov (United States)

    Gebbie, Matthew A; Smith, Alexander M; Dobbs, Howard A; Lee, Alpha A; Warr, Gregory G; Banquy, Xavier; Valtiner, Markus; Rutland, Mark W; Israelachvili, Jacob N; Perkin, Susan; Atkin, Rob

    2017-01-19

    Ionic liquids are pure salts that are liquid under ambient conditions. As liquids composed solely of ions, the scientific consensus has been that ionic liquids have exceedingly high ionic strengths and thus very short Debye screening lengths. However, several recent experiments from laboratories around the world have reported data for the approach of two surfaces separated by ionic liquids which revealed remarkable long range forces that appear to be electrostatic in origin. Evidence has accumulated demonstrating long range surface forces for several different combinations of ionic liquids and electrically charged surfaces, as well as for concentrated mixtures of inorganic salts in solvent. The original interpretation of these forces, that ionic liquids could be envisioned as "dilute electrolytes," was controversial, and the origin of long range forces in ionic liquids remains the subject of discussion. Here we seek to collate and examine the evidence for long range surface forces in ionic liquids, identify key outstanding questions, and explore possible mechanisms underlying the origin of these long range forces. Long range surface forces in ionic liquids and other highly concentrated electrolytes hold diverse implications from designing ionic liquids for energy storage applications to rationalizing electrostatic correlations in biological self-assembly.

  8. Microprocessor realizations of range and range-rate filters in radar systems

    Science.gov (United States)

    Fleischer, D.; Aronhime, P.

    1980-01-01

    This paper describes the implementation of digital radar range-rate filters on a microprocessor-based system. A range-rate filter processes a digitized noisy range signal to recover smoothed range data and its derivative, range rate. Two filter designs are implemented. Considerations aiding their efficient operation on an 8-bit microprocessor are discussed. The filters are subjected to a noisy range input signal of known variance, and the associated output signals are statistically analysed to determine noise-rejection characteristics. These results are compared to analytical predictions.

  9. Reticle level compensation for long range effects

    Science.gov (United States)

    Figueiro, Thiago; Browning, Clyde; Thornton, Martin J.; Vannufel, Cyril; Schiavone, Patrick

    2013-03-01

    Proximity Effects in electron beam lithography impact feature dimensions, pattern fidelity and uniformity. Electron scattering effects are commonly addressed using a mathematical model representing the radial exposure intensity distribution induced by a point electron source, commonly named Point Spread Function (PSF). PSF models are usually employed for correcting "short-range" and "long-range" backscattering effects up to 10μm to 15μm. It is well known that there are also some process related phenomena impacting pattern uniformity that have a wider range (fogging, chemical mechanical polishing -CMP- effects, etc.) which impacts up to a few millimeters or more. There are a number of commercial strategies for mitigating such long range effects based on data density. However, those traditional ones are usually performed within a single chip on a reticle field and ignore the presence of adjacent fields, neglecting their influence. Full field reticles can contain several different designs or arrayed chips in a multitude of layout placements. Reticle level jobdeck placing each design at specific sites, independent of each other can be used to account for the density of each pattern that has a relative impact on its neighbors, even if they are several millimeters away from offending data. Therefore, full field density analysis accounting for scribe frames and all neighboring patterns is required for reaching fidelity control requirements such as critical dimension (CD) and line end shortening (LES) on the full plate. This paper describes a technique to compensate long range effects going across chip boundaries to the full reticle exposure field. The extreme long range effects are also represented with a model that is calibrated according to the characteristics of the user's process. Data correction can be based on dose and geometry modulation. Uniform pattern dimensional control matching the user's specific process long range variability can be achieved with the

  10. Individual differences in BEV drivers' range stress during first encounter of a critical range situation.

    Science.gov (United States)

    Franke, Thomas; Rauh, Nadine; Krems, Josef F

    2016-11-01

    It is commonly held that range anxiety, in the form of experienced range stress, constitutes a usage barrier, particularly during the early period of battery electric vehicle (BEV) usage. To better understand factors that play a role in range stress during this critical period of adaptation to limited-range mobility, we examined individual differences in experienced range stress in the context of a critical range situation. In a field experiment, 74 participants drove a BEV on a 94-km round trip, which was tailored to lead to a critical range situation (i.e., small available range safety buffer). Higher route familiarity, trust in the range estimation system, system knowledge, subjective range competence, and internal control beliefs in dealing with technology were clearly related to lower experienced range stress; emotional stability (i.e., low neuroticism) was partly related to lower range stress. These results can inform strategies aimed at reducing range stress during early BEV usage, as well as contribute to a better understanding of factors that drive user experience in low-resource systems, which is a key topic in the field of green ergonomics. Copyright © 2015 Elsevier Ltd. All rights reserved.

  11. Optics At White Sands Missile Range

    Science.gov (United States)

    Fronczek, Ron C.; Hayslett, Charles R.

    1985-11-01

    We present an overview of the optics and optical data gathering programs conducted at White Sands Missile Range. Activities at White Sands Missile Range have always been diverse - the first test conducted there was the world's first nuclear explosion. In the forty years since that event the range has hosted a large assortment of vehicles including V2, Nike, Aerobee, Space Shuttle, Cruise, and the Copperhead. The last three of these devices illustrate the difficulty of the White Sands optical data gathering task. One is acquired in orbit, one as it crosses through a mountain pass, and one as it issues from the muzzle of a cannon. A combination of optical, radar, video, computer, and communications technology has produced a versatile system that can satisfy the data gathering requirements of most range users. Another example of the diverse optics programs at the range is the development of the High Energy Laser Systems Test Facility (HELSTF). Because of the nature of the systems being tested, the HELSTF is full of optics and optical systems including the TRW MIRACL laser and the Hughes SEA LITE Beam Director.

  12. Passive ranging of boost-phase missiles

    Science.gov (United States)

    Hawks, Michael; Perram, Glen

    2007-04-01

    The depth of absorption bands in observed spectra of distant, bright sources can be used to estimate range to the source. Previous efforts in this area relied on Beer's Law to estimate range from observations of infrared CO II bands, with disappointing results. A modified approach is presented that uses band models and observations of the O II absorption band near 762 nm. This band is spectrally isolated from other atmospheric bands, which enables direct estimation of molecular absorption from observed intensity. Range is estimated by comparing observed values of band-average absorption, (see manuscript), against predicted curves derived from either historical data or model predictions. Accuracy of better than 0.5% has been verified in short-range (up to 3km) experiments using a Fourier transform interferometer at 1cm -1 resolution. A conceptual design is described for a small, affordable passive ranging sensor suitable for use on tactical aircraft for missile attack warning and time-to-impact estimation. Models are used to extrapolate experimental results (using 1 cm -1 resolution data) to analyze expected performance of this filter-based system.

  13. Hip strength and range of motion

    DEFF Research Database (Denmark)

    Mosler, Andrea B.; Crossley, Kay M.; Thorborg, Kristian

    2017-01-01

    Objectives To determine the normal profiles for hip strength and range of motion (ROM) in a professional football league in Qatar, and examine the effect of leg dominance, age, past history of injury, and ethnicity on these profiles. Design Cross-sectional cohort study. Methods Participants...... values are documented for hip strength and range of motion that can be used as reference profiles in the clinical assessment, screening, and management of professional football players. Leg dominance, recent past injury history and ethnicity do not need to be accounted for when using these profiles...... included 394 asymptomatic, male professional football players, aged 18–40 years. Strength was measured using a hand held dynamometer with an eccentric test in side-lying for hip adduction and abduction, and the squeeze test in supine with 45° hip flexion. Range of motion measures included: hip internal...

  14. Extended range interferometry based on wavefront shaping

    Science.gov (United States)

    Szczupak, M. L.; Salbut, L.

    2007-09-01

    There are many cases when absolute measurements of objects with large height differences or height discontinuity is needed. These measurements can not be covered by classical interferometry since the range of non-ambiguity is limited to half the optical wavelength. Several techniques have been already developed for extending of non-ambiguity range. However most of them is based on multi-wavelength methods which demands expensive light sources and special environment conditions. In this work the new interferometric technique for absolute measurements of large steps discontinuities is proposed. Variable wavefront of the illuminating beam and special procedure for calibration of the measurement volume are used for extending of the measurement range without using multispectral sources. Additionally, calibration of the measurement area simplifies fringe processing and quicken measures. Theoretical analysis of this technique, its numerical simulations and experimental verification are presented and discussed.

  15. Cost-utility analysis of vagus nerve stimulators for adults with medically refractory epilepsy.

    Science.gov (United States)

    Forbes, Raeburn B; Macdonald, Shirley; Eljamel, Sam; Roberts, Richard C

    2003-07-01

    The cost-utility of vagus nerve stimulator (VNS) devices for medically refractory epilepsy has yet to be estimated. Using a meta-analysis of randomised controlled trials of VNS, we estimate that six people require implantation in order for one person to experience a 50% reduction in seizure frequency. Costs averted from improved epilepsy control were ascertained from published literature. Values for health states were obtained from a series of 42 seizure clinic attenders using time trade-off techniques and the EQ-5D health status instrument. The cost per quality adjusted life year gained was estimated and the values obtained were tested in a sensitivity analysis. Improved epilepsy control averted, on average, 745 pounds sterling health care costs per annum. People with epilepsy had great difficulty performing the time trade-off experiment, but those who managed to complete the task valued a 50% reduction in their own seizure frequency at 0.285 units. For a programme of six implants, the baseline model estimated the cost per quality adjusted life year gained at 28,849 pounds sterling. The most favourable estimate was equal to 4785 pounds sterling per quality adjusted life year gained, assuming that the number needed to treat was similar to published series in which one response was obtained for every three implants. The least favourable estimate was equal to 63,000 pounds sterling per quality adjusted life year gained, when EQ-5D utility values were used. The cost per quality adjusted life year gained was not sensitive to changes in length of stay, nor complication rates, but was significantly influenced by cost of device and device battery life expectancy. There is not a strong economic argument against a programme of VNS implantation, although care should be taken to try and identify and treat those most likely to benefit.

  16. PwC's 32 year Tesco audit reign ends as Deloitte appointed

    National Research Council Canada - National Science Library

    Warmoll, Chris

    2015-01-01

    ..., and Tesco's share price to plummet.Deloitte was brought in by the grocer to conduct into the accounting scandal of its overstated half-yearly results. It soon confirmed that the black hole was even bigger than the [pounds sterling]250m previously declared and went back even further than the supermarket group had originally stated.A PwC spokesman said: "We...

  17. Knowledge Transfer in Space Science

    OpenAIRE

    Yuen, P C

    2010-01-01

    Knowledge Transfer (KT) is a major part of technical aspect in space science. By involving the research council funded Knowledge Transfer Account (KTA) programme and the university industrial and commercial partners, these strengthen the future research collaboration amongst the university, industrial, commercial, scientific and engineering communities. Since the space science research and development is a multi-billion pounds sterling industry, it is often referred as the most advanced resea...

  18. Range conditions for a spherical mean transform

    KAUST Repository

    Agranovsky, Mark

    2009-07-01

    The paper is devoted to the range description of the Radon type transform that averages a function over all spheres centered on a given sphere. Such transforms arise naturally in thermoacoustic tomography, a novel method of medical imaging. Range descriptions have recently been obtained for such transforms, and consisted of smoothness and support conditions, moment conditions, and some additional orthogonality conditions of spectral nature. It has been noticed that in odd dimensions, surprisingly, the moment conditions are superfluous and can be eliminated. It is shown in this text that in fact the same happens in any dimension.

  19. Distributed chaos and inertial ranges in turbulence

    CERN Document Server

    Bershadskii, A

    2016-01-01

    It is shown that appearance of inertial range of scales, adjacent to distributed chaos range, results in adiabatic invariance of an energy correlation integral for isotropic homogeneous turbulence and for buoyancy driven turbulence (with stable or unstable stratification, including Rayleigh-Taylor mixing zone). Power spectrum of velocity field for distributed chaos dominated by this adiabatic invariant has a stretched exponential form $\\propto \\exp(-k/k_{\\beta})^{3/5}$. Results of recent direct numerical simulations have been used in order to support these conclusions.

  20. Current Trends in Satellite Laser Ranging

    Science.gov (United States)

    Pearlman, M. R.; Appleby, G. M.; Kirchner, G.; McGarry, J.; Murphy, T.; Noll, C. E.; Pavlis, E. C.; Pierron, F.

    2010-01-01

    Satellite Laser Ranging (SLR) techniques are used to accurately measure the distance from ground stations to retroreflectors on satellites and the moon. SLR is one of the fundamental techniques that define the international Terrestrial Reference Frame (iTRF), which is the basis upon which we measure many aspects of global change over space, time, and evolving technology. It is one of the fundamental techniques that define at a level of precision of a few mm the origin and scale of the ITRF. Laser Ranging provides precision orbit determination and instrument calibration/validation for satellite-borne altimeters for the better understanding of sea level change, ocean dynamics, ice budget, and terrestrial topography. Laser ranging is also a tool to study the dynamics of the Moon and fundamental constants. Many of the GNSS satellites now carry retro-reflectors for improved orbit determination, harmonization of reference frames, and in-orbit co-location and system performance validation. The GNSS Constellations will be the means of making the reference frame available to worldwide users. Data and products from these measurements support key aspects of the GEOSS 10-Year implementation Plan adopted on February 16, 2005, The ITRF has been identified as a key contribution of the JAG to GEOSS and the ILRS makes a major contribution for its development since its foundation. The ILRS delivers weekly additional realizations that are accumulated sequentially to extend the ITRF and the Earth Orientation Parameter (EOP) series with a daily resolution. Additional products are currently under development such as precise orbits of satellites, EOP with daily availability, low-degree gravitational harmonics for studies of Earth dynamics and kinematics, etc. SLR technology continues to evolve toward the next generation laser ranging systems as programmatic requirements become more stringent. Ranging accuracy is improving as higher repetition rate, narrower pulse lasers and faster

  1. High dynamic range imaging sensors and architectures

    CERN Document Server

    Darmont, Arnaud

    2013-01-01

    Illumination is a crucial element in many applications, matching the luminance of the scene with the operational range of a camera. When luminance cannot be adequately controlled, a high dynamic range (HDR) imaging system may be necessary. These systems are being increasingly used in automotive on-board systems, road traffic monitoring, and other industrial, security, and military applications. This book provides readers with an intermediate discussion of HDR image sensors and techniques for industrial and non-industrial applications. It describes various sensor and pixel architectures capable

  2. New range of heavy electric vehicle chassis

    Energy Technology Data Exchange (ETDEWEB)

    1979-06-01

    A new range of electrically-powered vehicles is announced in the UK. The vehicles are a joint venture between the Electric Vehicle Division of Hydrotechniek and its Dutch associate, Creusen Elektro-Mechanische Industrie BV. The 867S and 968S are three-axle vehicles with four-wheel drive on the rear four wheels. At present the vehicles go 20 km/h and have an 80-km range. The speed is to be extended in the near future and a diesel-electric hybrid may be introduced. An 867S is to be fitted out as a mobile library.

  3. Introduction to sensors for ranging and imaging

    CERN Document Server

    Brooker, Graham

    2009-01-01

    ""This comprehensive text-reference provides a solid background in active sensing technology. It is concerned with active sensing, starting with the basics of time-of-flight sensors (operational principles, components), and going through the derivation of the radar range equation and the detection of echo signals, both fundamental to the understanding of radar, sonar and lidar imaging. Several chapters cover signal propagation of both electromagnetic and acoustic energy, target characteristics, stealth, and clutter. The remainder of the book introduces the range measurement process, active ima

  4. Free Space Ranging Utilizing Chaotic Light

    Directory of Open Access Journals (Sweden)

    Tong Zhao

    2013-01-01

    Full Text Available We report our recent works on free space ranging with chaotic light. Using a laser diode with optical feedback as chaotic source, a prototype of chaotic lidar has been developed and it can achieve a range-independent resolution of 18 cm and measurable distance of 130 m at least. And its antijamming performance is presented experimentally and numerically. Finally, we, respectively, employ the wavelet denoising method and the correlation average discrete-component elimination algorithm to detect the chaotic signal in noisy environment and suppress the side-lobe noise of the correlation trace.

  5. Bearings Only Air-to-Air Ranging

    Science.gov (United States)

    1988-07-25

    TERMS (Continue on reverse it necessarv and identify WIock numberl FIELD GROUP’ SUB- GIR Air to Air RangingRange Estimationt Min..a simtr Passive...by uarget rnge sad direction or by observer motion in the statistical behavior of the 4.2 &Awo 0*l LA Sqvwnr. Rmng IoiamIin. Since it hu alredy bin...lengths, sad while they indicate irreularty in the estimation processt, they do nix explain its source. Figure 22, whMc as typical of whet can arise

  6. Ranging Behaviour of Commercial Free-Range Broiler Chickens 1: Factors Related to Flock Variability.

    Science.gov (United States)

    Taylor, Peta S; Hemsworth, Paul H; Groves, Peter J; Gebhardt-Henrich, Sabine G; Rault, Jean-Loup

    2017-07-20

    Little is known about the ranging behaviour of chickens. Understanding ranging behaviour is required to improve management and shed and range design to ensure optimal ranging opportunities. Using Radio Frequency Identification technology, we tracked 300 individual broiler chickens in each of four mixed sex ROSS 308 flocks on one commercial farm across two seasons. Ranging behaviour was tracked from the first day of range access (21 days of age) until 35 days of age in winter and 44 days of age in summer. Range use was higher than previously reported from scan sampling studies. More chickens accessed the range in summer (81%) than winter (32%; p < 0.05). On average, daily frequency and duration of range use was greater in summer flocks (4.4 ± 0.1 visits for a total of 26.3 ± 0.8 min/day) than winter flocks (3.2 ± 0.2 visits for a total of 7.9 ± 1.0 min/day). Seasonal differences were only marginally explained by weather conditions and may reflect the reduction in range exposure between seasons (number of days, hours per day, and time of day). Specific times of the day (p < 0.01) and pop-holes were favoured (p < 0.05). We provide evidence of relationships between ranging and external factors that may explain ranging preferences.

  7. Range-based covariance estimation using high-frequency data: The realized co-range

    NARCIS (Netherlands)

    K. Bannouh (Karim); D.J.C. van Dijk (Dick); M.P.E. Martens (Martin)

    2008-01-01

    textabstractWe introduce the realized co-range, utilizing intraday high-low price ranges to estimate asset return covariances. Using simulations we find that for plausible levels of bid-ask bounce and infrequent and non-synchronous trading the realized co-range improves upon the realized covariance,

  8. Historical Biogeography Using Species Geographical Ranges.

    Science.gov (United States)

    Quintero, Ignacio; Keil, Petr; Jetz, Walter; Crawford, Forrest W

    2015-11-01

    Spatial variation in biodiversity is the result of complex interactions between evolutionary history and ecological factors. Methods in historical biogeography combine phylogenetic information with current species locations to infer the evolutionary history of a clade through space and time. A major limitation of most methods for historical biogeographic inference is the requirement of single locations for terminal lineages, reducing contemporary species geographical ranges to a point in two-dimensional space. In reality, geographic ranges usually show complex geographic patterns, irregular shapes, or discontinuities. In this article, we describe a method for phylogeographic analysis using polygonal species geographic ranges of arbitrary complexity. By integrating the geographic diversification process across species ranges, we provide a method to infer the geographic location of ancestors in a Bayesian framework. By modeling migration conditioned on a phylogenetic tree, this approach permits reconstructing the geographic location of ancestors through time. We apply this new method to the diversification of two neotropical bird genera, Trumpeters (Psophia) and Cinclodes ovenbirds. We demonstrate the usefulness of our method (called rase) in phylogeographic reconstruction of species ancestral locations and contrast our results with previous methods that compel researchers to reduce the distribution of species to one point in space. We discuss model extensions to enable a more general, spatially explicit framework for historical biogeographic analysis. © The Author(s) 2015. Published by Oxford University Press, on behalf of the Society of Systematic Biologists. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  9. Resources and Long-Range Forecasts

    Science.gov (United States)

    Smith, Waldo E.

    1973-01-01

    The author argues that forecasts of quick depletion of resources in the environment as a result of overpopulation and increased usage may not be free from error. Ignorance still exists in understanding the recovery mechanisms of nature. Long-range forecasts are likely to be wrong in such situations. (PS)

  10. Medium-range fire weather forecasts

    Science.gov (United States)

    J.O. Roads; K. Ueyoshi; S.C. Chen; J. Alpert; F. Fujioka

    1991-01-01

    The forecast skill of theNational Meteorological Center's medium range forecast (MRF) numerical forecasts of fire weather variables is assessed for the period June 1,1988 to May 31,1990. Near-surface virtual temperature, relative humidity, wind speed and a derived fire weather index (FWI) are forecast well by the MRF model. However, forecast relative humidity has...

  11. Optimal Static Range Reporting in One Dimension

    DEFF Research Database (Denmark)

    Alstrup, Stephen; Brodal, Gerth Stølting; Rauhe, Theis

    2001-01-01

    a query interval, we present an optimal data structure with linear space cost and with query time linear in the number of integers reported. This result holds in the unit cost RAM model with word size w and a standard instruction set. We also present a linear space data structure for approximate range...

  12. RANGE ECONOMICS RESEARCH (THE NATIONAL INTEREST)

    OpenAIRE

    Crom, Richard J.

    1985-01-01

    Increasing interest in range economics research calls for a more tightly defined set of issues and a menu of research projects addressing these issues. This paper identifies major issues of national importance followed by a brief description of suggested research projects.

  13. Short range radio research in Twente

    NARCIS (Netherlands)

    Meijerink, Arjan

    2010-01-01

    The research and education by the Telecommunication Engineering Group at the University of Twente is dedicated to physical layer topics in communications. Three research tracks have prominence: Short Range Radio, Microwave Photonics, and Electromagnetic Compatibility. Arjan is active in the Short

  14. African Journal of Range and Forage Science

    African Journals Online (AJOL)

    The African Journal of Range & Forage Science (previously known as Proceedings of the Grassland Society of Southern Africa and Journal of the Grassland Society of Southern Africa) is the leading rangeland and pastoral journal in Africa, and serves as an important reference for anyone interested in the management and ...

  15. Controlling a wide range of flow rates

    Science.gov (United States)

    Perkins, G. S.

    1979-01-01

    Servo-operated valve and two flowmeters allow accurate control over 1,900:1 flow-rate range. It was developed as part of laboratory instrument for measuring properties of confined fluids under conditions analogous to those encountered in deep drilling operations.

  16. Demonstration of the Colour Range of Indicators

    Science.gov (United States)

    Woods, G. T.

    1975-01-01

    Describes the construction of a box that is filled with indicator of a particular concentration. A little acid is added to one side and a little alkali to the other so that the complete colour range of the indicator is observable. (GS)

  17. Look Ahead: Long-Range Learning Plans

    Science.gov (United States)

    Weinstein, Margery

    2010-01-01

    Faced with an unsteady economy and fluctuating learning needs, planning a learning strategy designed to last longer than the next six months can be a tall order. But a long-range learning plan can provide a road map for success. In this article, four companies (KPMG LLP, CarMax, DPR Construction, and EMC Corp.) describe their learning plans, and…

  18. Great Basin Experimental Range: Annotated bibliography

    Science.gov (United States)

    E. Durant McArthur; Bryce A. Richardson; Stanley G. Kitchen

    2013-01-01

    This annotated bibliography documents the research that has been conducted on the Great Basin Experimental Range (GBER, also known as the Utah Experiment Station, Great Basin Station, the Great Basin Branch Experiment Station, Great Basin Experimental Center, and other similar name variants) over the 102 years of its existence. Entries were drawn from the original...

  19. Extended-range order in glasses

    Energy Technology Data Exchange (ETDEWEB)

    Ellison, A.J.G.; Price, D.L.; Saboungi, M.L. [Argonne National Lab., IL (United States); Egami, T.; Hu, Rui-Zhong [Pennsylvania Univ., Philadelphia, PA (United States); Howells, W.S. [Rutherford Appleton Lab., Chilton (United Kingdom)

    1994-03-01

    A new type of order is identified in complex glasses, characterized by diffraction peaks at values of the wave vector below those typical of intermediate-range order. Combined neutron and anomalous x-ray diffraction studies of one glass exhibiting this behavior, vitreous rubidium germanate, indicate it to be associated with chemical ordering of the two cations with respect to each other.

  20. Report to Congress on Sustainable Ranges, 2013

    Science.gov (United States)

    2013-04-01

    research, tsunami warning/verification, and seismic / earthquake monitoring. The littoral nature of Navy training ranges and the unique types of...training. `` Completed Phases 1 (Mountainside Village) and 2 (Hillside Tunnels ) of four-phase urban training complex plan. Ongoing Progress

  1. Report to Congress on Sustainable Ranges

    Science.gov (United States)

    2014-02-01

    research, climate research, tsunami warning/ verification, and seismic /earthquake monitoring. The littoral nature of Navy training ranges and the unique...Mountainside Village) and 2 (Hillside Tunnels ) of four-phase urban training complex plan. Ongoing Progress continuing into 2014. 252014 Sustainable

  2. Antenna induced range smearing in MST radars

    Science.gov (United States)

    Watkins, B. J.; Johnston, P. E.

    1984-01-01

    There is considerable interest in developing stratosphere troposphere (ST) and mesosphere stratosphere troposphere (MST) radars for higher resolution to study small-scale turbulent structures and waves. At present most ST and MST radars have resolutions of 150 meters or larger, and are not able to distinguish the thin (40 - 100 m) turbulent layers that are known to occur in the troposphere and stratosphere, and possibly in the mesosphere. However the antenna beam width and sidelobe level become important considerations for radars with superior height resolution. The objective of this paper is to point out that for radars with range resolutions of about 150 meters or less, there may be significant range smearing of the signals from mesospheric altitudes due to the finite beam width of the radar antenna. At both stratospheric and mesospheric heights the antenna sidelobe level for lear equally spaced phased arrays may also produce range aliased signals. To illustrate this effect the range smearing functions for two vertically directed antennas have been calculated, (1) an array of 32 coaxial-collinear strings each with 48 elements that simulates the vertical beam of the Poker Flat, Glaska, MST radar; and (2) a similar, but smaller, array of 16 coaxial-collinear strings each with 24 elements.

  3. Host range evaluation and morphological characterization of ...

    African Journals Online (AJOL)

    A total of 29 isolates of Pseudoperonospora cubensis were collected from various cucurbit farms in West Malaysia. Sporangia of 13 isolates had the ability to germinate at 14°C and were used for host range (pathotype) study using leaf disc assay on a set of twelve cucurbit cultivars. Twelve different pathotypes of P. cubensis ...

  4. Engineering Biosensors with Dual Programmable Dynamic Ranges.

    Science.gov (United States)

    Wei, Benmei; Zhang, Juntao; Ou, Xiaowen; Lou, Xiaoding; Xia, Fan; Vallée-Bélisle, Alexis

    2018-01-10

    Although extensively used in all fields of chemistry, molecular recognition still suffers from a significant limitation: host-guest binding displays a fixed, hyperbolic dose-response curve, which limits its usefulness in many applications. Here we take advantage of the high programmability of DNA chemistry and propose a universal strategy to engineer biorecognition-based sensors with dual programmable dynamic ranges. Using DNA aptamers as our model recognition element and electrochemistry as our readout signal, we first designed a dual signaling "signal-on" and "signal-off" adenosine triphosphate (ATP) sensor composed of a ferrocene-labeled ATP aptamer in complex to a complementary, electrode-bound, methylene-blue labeled DNA. Using this simple "dimeric" sensor, we show that we can easily (1) tune the dynamic range of this dual-signaling sensor through base mutations on the electrode-bound DNA, (2) extend the dynamic range of this sensor by 2 orders of magnitude by using a combination of electrode-bound strands with varying affinity for the aptamers, (3) create an ultrasensitive dual signaling sensor by employing a sequestration strategy in which a nonsignaling, high affinity "depletant" DNA aptamer is added to the sensor surface, and (4) engineer a sensor that simultaneously provides extended and ultrasensitive readouts. These strategies, applicable to a wide range of biosensors and chemical systems, should broaden the application of molecular recognition in various fields of chemistry.

  5. Inversion of spheroid particle size distribution in wider size range and aspect ratio range

    Directory of Open Access Journals (Sweden)

    Tang Hong

    2013-01-01

    Full Text Available The non-spherical particle sizing is very important in the aerosol science, and it can be determined by the light extinction measurement. This paper studies the effect of relationship of the size range and aspect ratio range on the inversion of spheroid particle size distribution by the dependent mode algorithm. The T matrix method and the geometric optics approximation method are used to calculate the extinction efficiency of the spheroids with different size range and aspect ratio range, and the inversion of spheroid particle size distribution in these different ranges is conducted. Numerical simulation indicates that a fairly reasonable representation of the spheroid particle size distribution can be obtained when the size range and aspect ratio range are suitably chosen.

  6. Comparison of range migration correction algorithms for range-Doppler processing

    Science.gov (United States)

    Uysal, Faruk

    2017-07-01

    The next generation digital radars are able to provide high-range resolution by the advancement of radar hardware technologies. These systems take advantage of coherent integration and Doppler processing technique to increase the target's signal-to-noise ratio. Due to the high-range resolution (small range cells) and fast target motion, a target migrates through multiple range cells within a coherent processing interval. Range cell migration (also known as range walk) occurs and degrades the coherent integration gain. There are many approaches in the literature to correct these unavoidable effects and focus the target in the range-Doppler domain. We demonstrate some of these methods on an operational frequency-modulated continuous-wave (FMCW) radar and point out practical issues in the application.

  7. Method and apparatus for coherent burst ranging

    Science.gov (United States)

    Wachter, Eric A.; Fisher, Walter G.

    1998-01-01

    A high resolution ranging method is described utilizing a novel modulated waveform, hereafter referred to as coherent burst modulation. In the coherent burst method, high frequency modulation of an acoustic or electromagnetic transmitter, such as a laser, is performed at a modulation frequency. This modulation frequency is transmitted quasi-continuously in the form of interrupted bursts of radiation. Energy from the transmitter is directed onto a target, interacts with the target, and the returning energy is collected. The encoded burst pattern contained in the collected return signal is detected coherently by a receiver that is tuned so as to be principally sensitive to the modulation frequency. The receiver signal is processed to determine target range using both time-of-flight of the burst envelope and phase shift of the high frequency modulation. This approach effectively decouples the maximum unambiguous range and range resolution relationship of earlier methods, thereby allowing high precision ranging to be conducted at arbitrarily long distances using at least one burst of encoded energy. The use of a receiver tuned to the high frequency modulation contained within the coherent burst vastly improves both sensitivity in the detection of the target return signal and rejection of background interferences, such as ambient acoustic or electromagnetic noise. Simultaneous transmission at several energies (or wavelengths) is possible by encoding each energy with a separate modulation frequency or pattern; electronic demodulation at the receiver allows the return pattern for each energy to be monitored independently. Radial velocity of a target can also be determined by monitoring change in phase shift of the return signal as a function of time.

  8. Artists to receive 1 million pounds for nuvlear creations

    CERN Multimedia

    Milner, C

    2000-01-01

    A group of Britain's leading artists including Anish Kapoor and Richard Deacon, are being paid to create works inspired by talking to physicists working at CERN. The project is sponsored jointly by the British Council, the Gulbenkian Foundation and the London Institute. The aim is to find out if artists can respond to nature as it has been defined by scientists, according to Ken McMullen the project director (1 page).

  9. Page 1 AVuclear Oxidation in Flavones and Related Com pounds ...

    Indian Academy of Sciences (India)

    It undergoes debenzylation and partial demethyl- ation in the 5-position with hydrobromic acid and the product is a dimethyl ether having all the properties of pectolinarigenin (II). Its diacetate also agrees with the description of pectolinarigenin diacetate. We have also repeated the synthesis by the method of Wessely and ...

  10. Pound the Student: A Great Leap Forward in Pedagogy.

    Science.gov (United States)

    Zepazauer, Frank

    A teacher describes his unexpected success with a technique designed to help special needs ninth graders acquire writing and spelling skills. Assisted by his teaching aide, he used a dictation exercise coupled with immediate feedback and touch. He found that dictating sentences helped students make transitions betweens talking and writing. The…

  11. Google Scholar: The 800-Pound Gorilla in the Room

    Science.gov (United States)

    Shapiro, Steven

    2012-01-01

    There is a "clash of civilizations" going on in the information field--a clash characterized by a brash upstart, Google, and its attendant creations, Google Scholar and Google Books, and the old guard represented by the library world. Librarians who deprecate Google Scholar or simply ignore the Google phenomenon do so at their own risk. Google…

  12. Design and construction of a yam pounding machine | Odior ...

    African Journals Online (AJOL)

    International Journal of Natural and Applied Sciences. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 4, No 3 (2008) >. Log in or Register to get access to full text downloads.

  13. In for a penny, in for a pound

    DEFF Research Database (Denmark)

    Campbell-Meiklejohn, Daniel; Simonsen, Arndis; Scheel-Krüger, Jørgen

    2012-01-01

    . This is known as ‘escalation of commitment’. Drugs that affect catecholamine receptors can alter the way magnitude of anticipated outcomes affect brain activity and behaviour. Correspondingly, clinical evidence suggests a link between catecholaminergic stimulant use and pathological gambling, for which...... escalation of commitment is a defining feature. We tested for an effect of methylphenidate (MPH), a catecholaminergic stimulant, on the inhibiting effect of high stakes on persistent risky choice. In a double-blind study, 20 healthy female subjects received a 20mg oral dose of MPH while 20 matched controls...... received a placebo (PL). All subjects performed a task of double-or-nothing gambles after loss with varied stakes. As expected, subjects who received PL gambled less when stakes were high. Subjects who received MPH, however, maintained relatively high persistence across all stakes. We also found...

  14. High Precision Ranging and Range-Rate Measurements over Free-Space-Laser Communication Link

    Science.gov (United States)

    Yang, Guangning; Lu, Wei; Krainak, Michael; Sun, Xiaoli

    2016-01-01

    We present a high-precision ranging and range-rate measurement system via an optical-ranging or combined ranging-communication link. A complete bench-top optical communication system was built. It included a ground terminal and a space terminal. Ranging and range rate tests were conducted in two configurations. In the communication configuration with 622 data rate, we achieved a two-way range-rate error of 2 microns/s, or a modified Allan deviation of 9 x 10 (exp -15) with 10 second averaging time. Ranging and range-rate as a function of Bit Error Rate of the communication link is reported. They are not sensitive to the link error rate. In the single-frequency amplitude modulation mode, we report a two-way range rate error of 0.8 microns/s, or a modified Allan deviation of 2.6 x 10 (exp -15) with 10 second averaging time. We identified the major noise sources in the current system as the transmitter modulation injected noise and receiver electronics generated noise. A new improved system will be constructed to further improve the system performance for both operating modes.

  15. Sterling C. Robertson Dam and Limestone Lake on the Navasota River, Texas (Leon, Limestone and Robertson Counties).

    Science.gov (United States)

    1976-04-01

    drumrw’on- dii), Paspulum sp., coast sandbur (Cenchrus incertus). sedge (Carex sp.). Oxalis sp.. and vetch (Vicia sp.). 2.36 There are no known species in the...coast sandbur (Cenchrus incertus), sedge Carex sp.), Oxalis , and vetch (Vivia sp.). There are no known species in the project area classified as...St. Peterswort, Ea mne t-riandra Waterwort Utricularia inflata Floating Bladderwort ~pe-LCUIl sp. St. Johnswort Rurnex acetosella Sheep Sorrel

  16. Aligning Assessment Instruments with the Sterling Quality Criteria: Technical Report for the Teaching and Leadership Center at Florida Atlanta University.

    Science.gov (United States)

    Pisapia, John; Coukos-Semmel, Eleni

    Florida Atlantic University College of Education was commissioned by the South Florida Annenberg Challenge to develop and create five diagnostic and assessment instruments for leaders that will provide candidate information about: (1) personality skills related to leadership; (2) transformational leadership potential; (3) leadership skills; (4)…

  17. DOE Zero Energy Ready Home Case Study: Sterling Brook Custom Homes — Village Park Eco Home, Double Park, TX

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2014-09-01

    This builder won a Custom Builder honor in the 2014 Housing Innovation Awards for this showcase home that serves as an energy-efficient model home for the custom home builder: 1,300 visitors toured the home, thousands more learned about the home’s advanced construction via the webpage, YouTube, Twitter, Facebook, Instagram, and Pinterest.

  18. Sovereigns, sterling and “some bastards too!”: Brexit seen from Shakespeare’s King John\\ud

    OpenAIRE

    Watt, Gary

    2017-01-01

    2016 marks the 800th anniversary of the death of King John and the 400th anniversary of the death of William Shakespeare. The premise of this article is that the dynamics of human motivation which Shakespeare attributed to individuals living four hundred years before he wrote, apply as well four centuries on, in the year of “Brexit”. Statistics will never tell us what led the majority of UK voters to vote “leave” on the fateful day of the EU referendum, but an appreciation of Shakespeare's Ki...

  19. The Hybrid Sterling Engine: boosting photovoltaic efficiency and deriving mechanical work from fluid expansion and heat capture

    Science.gov (United States)

    Beets, Nathan; Wake Forest CenterNanotechnology; Molecular Materials Team; Fraunhofer Institute Collaboration

    2015-11-01

    Two major problems with many third generation photovoltaics is their complex structure and greater expense for increased efficiency. Spectral splitting devices have been used by many with varying degrees of success to collect more and more of the spectrum, but simple, efficient, and cost-effective setups that employ spectral splitting remain elusive. This study explores this problem, presenting a solar engine that employs stokes shifting via laser dyes to convert incident light to the wavelength bandgap of the solar cell and collects the resultant infrared radiation unused by the photovoltaic cell as heat in ethylene glycol or glycerin. When used in conjunction with micro turbines, fluid expansion creates mechanical work, and the temperature difference between the cell and the environment is made available for use. The effect of focusing is also observed as a means to boost efficiency via concentration. Experimental results from spectral scans, vibrational voltage analysis of the PV itself and temperature measurements from a thermocouple are all compared to theoretical results using a program in Mathematica written to model refraction and lensing in the devices used, a quantum efficiency test of the cells, the absorption and emission curves of the dues used to determine the spectrum shift, and the various equations for fill factor, efficiency, and current in different setups. An efficiency increase well over 50% from the control devices is observed, and a new solar engine proposed.

  20. Visual Control of Robots Using Range Images

    Directory of Open Access Journals (Sweden)

    Fernando Torres

    2010-08-01

    Full Text Available In the last years, 3D-vision systems based on the time-of-flight (ToF principle have gained more importance in order to obtain 3D information from the workspace. In this paper, an analysis of the use of 3D ToF cameras to guide a robot arm is performed. To do so, an adaptive method to simultaneous visual servo control and camera calibration is presented. Using this method a robot arm is guided by using range information obtained from a ToF camera. Furthermore, the self-calibration method obtains the adequate integration time to be used by the range camera in order to precisely determine the depth information.

  1. Orthogonal Range Searching on the RAM, Revisited

    DEFF Research Database (Denmark)

    Chan, Timothy M.; Larsen, Kasper Green; Patrascu, Mihai

    2011-01-01

    We present a number of new results on one of the most extensively studied topics in computational geometry, orthogonal range searching. All our results are in the standard word RAM model: We present two data structures for 2-d orthogonal range emptiness. The first achieves O(n lg lg n) space and O...... the output size. This resolves two open problems (both appeared in Preparata and Shamos' seminal book): given a set of n axis-aligned rectangles in the plane, we can report all k enclosure pairs (i.e., pairs (r1,r2) where rectangle r1 completely encloses rectangle r2) in O(n lg n + k) expected time; given...

  2. Space Weather Effects on Range Operations

    Science.gov (United States)

    2013-02-01

    War II, with heavy reliance on radar and radio as war-fighting tools, we encountered unexplained outages. You may have seen movies showing soldiers...individual meteorology offices, and the issues that each range might possibly encounter. You may have radars that can be directly affected by solar radio...may interact with atomic nuclei thus imparting a certain recoil energy and generating secondary particles. Both the recoiling nucleus and secondary

  3. Ranges of bimodule projections and conditional expectations

    CERN Document Server

    Pluta, Robert

    2013-01-01

    The algebraic theory of corner subrings introduced by Lam (as an abstraction of the properties of Peirce corners eRe of a ring R associated with an idempotent e in R) is investigated here in the context of Banach and C*-algebras. We propose a general algebraic approach which includes the notion of ranges of (completely) contractive conditional expectations on C*-algebras and on ternary rings of operators, and we investigate when topological properties are consequences of the algebraic assumpt...

  4. Semiconductor Sensors for a Wide Temperature Range

    OpenAIRE

    Nikolay GORBACHUK; Mikhail LARIONOV; Aleksey FIRSOV; Nikolay SHATIL

    2014-01-01

    Prototype sensors are described that are applicable for pressure, position, temperature, and field measurements in the temperature range of 4.2 to 300 K. The strain gauges utilize the silicon substrate and thin film technology. The tensosensitivity of strain sensors is 40 µV/mln-1 or better depending on metrological characteristics of semiconductor films, orientation, and current. The temperature sensors (thermistors) make use of the germanium powder bulk. The temperature coefficient of resis...

  5. Reference Physiological Ranges for Serum Biochemical Parameters ...

    African Journals Online (AJOL)

    After complete assay, the data were subjected to both parametric and non parametric statistics for analyses with 2.5 and 97.5 percentiles considered as the lower and upper limits of reference ranges. Results: There were 331(66.1%) males and 170(33.9) females, with 359(71.7%) and 142(28.3) of them residing in the urban ...

  6. Short Rayleigh Range Free Electron Laser Amplifiers

    CERN Document Server

    Yu, L H; Murphy, J B; Rose, J; Shaftan, T V; Wang, X J; Watanabe, T

    2005-01-01

    An important requirement for a high average power laser system is a manageable power density on the first optical element. One possibility to achieve this is a single pass amplifier which generates a short Rayleigh range (SRL) light beam. We present design parameters and calculated performances for several SRL configurations. These include a simulation of the optically guided (pinched) MW class FEL [1], the scalloped beam FEL amplifier [2] and high gain TOK amplifiers we propose to explore at our SDL facility.

  7. Capacitive Proximity Sensor Has Longer Range

    Science.gov (United States)

    Vranish, John M.

    1992-01-01

    Capacitive proximity sensor on robot arm detects nearby object via capacitive effect of object on frequency of oscillator. Sensing element part of oscillator circuit operating at about 20 kHz. Total capacitance between sensing element and ground constitutes tuning capacitance of oscillator. Sensor circuit includes shield driven by replica of alternating voltage applied to sensing element. Driven shield concentrates sensing electrostatic field in exterior region to enhance sensitivity to object. Sensitivity and dynamic range has corresponding 12-to-1 improvement.

  8. Report to Congress on Sustainable Ranges, 2011

    Science.gov (United States)

    2011-07-01

    Services (IGI&S) data proponency, Common Installation Picture, and Quality Assurance Plans ( QAPs ). Based on this guidance, all Army installations are...Sustainable Ranges Report July 2011 Support Center are defined in each layer’s geospatial data QAP . QAPs provide the definition, information about the...requirements for each of the data layers. QAPs are living documents and are maintained by the HQDA proponent with input from the installation data

  9. On the ranges of discrete exponentials

    Directory of Open Access Journals (Sweden)

    Florin Caragiu

    2004-01-01

    Full Text Available Let a>1 be a fixed integer. We prove that there is no first-order formula ϕ(X in one free variable X, written in the language of rings, such that for any prime p with gcd(a,p=1 the set of all elements in the finite prime field Fp satisfying ϕ coincides with the range of the discrete exponential function t↦at(modp.

  10. On the ranges of discrete exponentials

    OpenAIRE

    Florin Caragiu; Mihai Caragiu

    2004-01-01

    Let a>1 be a fixed integer. We prove that there is no first-order formula ϕ(X) in one free variable X, written in the language of rings, such that for any prime p with gcd(a,p)=1 the set of all elements in the finite prime field Fp satisfying ϕ coincides with the range of the discrete exponential function t↦at(modp).

  11. Range of motion and cervical myofascial pain.

    Science.gov (United States)

    Wilke, J; Niederer, D; Fleckenstein, J; Vogt, L; Banzer, W

    2016-01-01

    Several studies investigating myofascial pain syndrome include assessments of range of motion (ROM) as a diagnostic criterion. However, the value of ROM in this context has not yet been evaluated in controlled clinical studies. We aimed to examine whether patients with myofascial pain syndrome display alterations of ROM when compared to healthy subjects. Twenty-two individuals (13 females, 9 males; aged 33.4 ± 13.9 yrs) afflicted with active myofascial trigger points in the upper trapezius muscle as well as 22 age and sex matched healthy controls were included. All subjects underwent an examination of maximal active cervical ROM in flexion/extension assessed by means of a 3D ultrasonic movement analysis system (30 Hz; Zebris CMS 70). In the patients group, pressure pain threshold (PPT) of the trigger points was determined using a pressure algometer. Maximum range of motion in the sagittal plane did not differ between individuals with MTrP (125.9 ± 23.2°, 95% CI: 116.2-135.6°) and asymptomatic subjects (128.2 ± 20.4°, 95% CI: 119.7-136.7°; p > .05). In patients, PPT (1.7 ± .6, 95% CI: 1.5-1.9) was not correlated with cervical mobility (r = -.13; p > .05). Based on these pilot data, range of motion in flexion/extension is not a valid criterion for the detection of myofascial trigger points. Additional research incorporating movement amplitudes in other anatomical planes and additional afflicted muscles should be conducted in order to further delineate the relative impact of MTrP on range of motion. Copyright © 2015 Elsevier Ltd. All rights reserved.

  12. Long-range order in canary song.

    Science.gov (United States)

    Markowitz, Jeffrey E; Ivie, Elizabeth; Kligler, Laura; Gardner, Timothy J

    2013-01-01

    Bird songs range in form from the simple notes of a Chipping Sparrow to the rich performance of the nightingale. Non-adjacent correlations can be found in the syntax of some birdsongs, indicating that the choice of what to sing next is determined not only by the current syllable, but also by previous syllables sung. Here we examine the song of the domesticated canary, a complex singer whose song consists of syllables, grouped into phrases that are arranged in flexible sequences. Phrases are defined by a fundamental time-scale that is independent of the underlying syllable duration. We show that the ordering of phrases is governed by long-range rules: the choice of what phrase to sing next in a given context depends on the history of the song, and for some syllables, highly specific rules produce correlations in song over timescales of up to ten seconds. The neural basis of these long-range correlations may provide insight into how complex behaviors are assembled from more elementary, stereotyped modules.

  13. A Computational Approach to Competitive Range Expansions

    Science.gov (United States)

    Weber, Markus F.; Poxleitner, Gabriele; Hebisch, Elke; Frey, Erwin; Opitz, Madeleine

    2014-03-01

    Bacterial communities represent complex and dynamic ecological systems. Environmental conditions and microbial interactions determine whether a bacterial strain survives an expansion to new territory. In our work, we studied competitive range expansions in a model system of three Escherichia coli strains. In this system, a colicin producing strain competed with a colicin resistant, and with a colicin sensitive strain for new territory. Genetic engineering allowed us to tune the strains' growth rates and to study their expansion in distinct ecological scenarios (with either cyclic or hierarchical dominance). The control over growth rates also enabled us to construct and to validate a predictive computational model of the bacterial dynamics. The model rested on an agent-based, coarse-grained description of the expansion process and we conducted independent experiments on the growth of single-strain colonies for its parametrization. Furthermore, the model considered the long-range nature of the toxin interaction between strains. The integration of experimental analysis with computational modeling made it possible to quantify how the level of biodiversity depends on the interplay between bacterial growth rates, the initial composition of the inoculum, and the toxin range.

  14. Lead Poisoning at an Indoor Firing Range.

    Science.gov (United States)

    Kang, Kyung Wook; Park, Won Ju

    2017-10-01

    In March 2014, a 39-year-old Korean male presented with a 6-month history of various nonspecific symptoms including dizziness, fatigue, asthenia, irritability, elevated blood pressure, palpitation, eyestrain, and tinnitus. His occupational history revealed that he had been working as an indoor firing range manager for 13 months; therefore, he was subjected to a blood lead level (BLL) test. The test results showed a BLL of 64 μg/dL; hence, he was diagnosed with lead poisoning and immediately withdrawn from work. As evident from the workplace environmental monitoring, the level of lead exposure in the air exceeded its limit (0.015-0.387 mg/m³). He received chelation treatment with calcium-disodium ethylenediaminetetraacetic acid (1 g/day) for 5 days without any adverse effects. In the follow-up results after 2 months, the BLL had decreased to 9.7 μg/dL and the symptoms resolved. This report represents the first occupational case of lead poisoning in firing ranges in Korea, and this necessitates institutional management to prevent the recurrence of poisoning through this route. Workplace environmental monitoring should be implemented for indoor firing ranges, and the workers should undergo regularly scheduled special health examinations. In clinical practice, it is essential to question the patient about his occupational history. © 2017 The Korean Academy of Medical Sciences.

  15. Enhanced Graphics for Extended Scale Range

    Science.gov (United States)

    Hanson, Andrew J.; Chi-Wing Fu, Philip

    2012-01-01

    Enhanced Graphics for Extended Scale Range is a computer program for rendering fly-through views of scene models that include visible objects differing in size by large orders of magnitude. An example would be a scene showing a person in a park at night with the moon, stars, and galaxies in the background sky. Prior graphical computer programs exhibit arithmetic and other anomalies when rendering scenes containing objects that differ enormously in scale and distance from the viewer. The present program dynamically repartitions distance scales of objects in a scene during rendering to eliminate almost all such anomalies in a way compatible with implementation in other software and in hardware accelerators. By assigning depth ranges correspond ing to rendering precision requirements, either automatically or under program control, this program spaces out object scales to match the precision requirements of the rendering arithmetic. This action includes an intelligent partition of the depth buffer ranges to avoid known anomalies from this source. The program is written in C++, using OpenGL, GLUT, and GLUI standard libraries, and nVidia GEForce Vertex Shader extensions. The program has been shown to work on several computers running UNIX and Windows operating systems.

  16. Effect of dispersal at range edges on the structure of species ranges

    Science.gov (United States)

    Bahn, V.; O'Connor, R.J.; Krohn, W.B.

    2006-01-01

    Range edges are of particular interest to ecology because they hold key insights into the limits of the realized niche and associated population dynamics. A recent feature of Oikos summarized the state of the art on range edge ecology. While the typical question is what causes range edges, another important question is how range edges influence the distribution of abundances across a species geographic range when dispersal is present. We used a single species population dynamics model on a coupled-lattice to determine the effects of dispersal on peripheral populations as compared to populations at the core of the range. In the absence of resource gradients, the reduced neighborhood and thus lower connectivity or higher isolation among populations at the range edge alone led to significantly lower population sizes in the periphery of the range than in the core. Lower population sizes mean higher extinction risks and lower adaptability at the range edge, which could inhibit or slow range expansions, and thus effectively stabilize range edges. The strength of this effect depended on the potential population growth rate and the maximum dispersal distance. Lower potential population growth rates led to a stronger effect of dispersal resulting in a higher difference in population sizes between the two areas. The differential effect of dispersal on population sizes at the core and periphery of the range in the absence of resource gradients implies that traditional, habitat-based distribution models could result in misleading conclusions about the habitat quality in the periphery. Lower population sizes at the periphery are also relevant to conservation, because habitat removal not only eliminates populations but also creates new edges. Populations bordering these new edges may experience declines, due to their increased isolation. ?? OIKOS.

  17. Does this range suit me? Range satisfaction of battery electric vehicle users.

    Science.gov (United States)

    Franke, Thomas; Günther, Madlen; Trantow, Maria; Krems, Josef F

    2017-11-01

    User satisfaction is a vital design criterion for sustainable systems. The present research aimed to understand factors relating to individually perceived range satisfaction of battery electric vehicle (BEV) users. Data from a large-scale BEV field trial (N = 72) were analyzed. Apart from an initial drop in range satisfaction, increasing practical experience was related to increased range satisfaction. Classical indicators of users' mobility profiles (daily travel distances) were only weakly related to lower range satisfaction (not significant), after controlling for practical experience and preferred coverage of mobility needs. The regularity/predictability of users' mobility patterns, the percentage of journeys not coverable because of range issues, and users' individual comfortable range accounted for variance in range satisfaction. Finally, range satisfaction was related to key indicators of general BEV acceptance (e.g., purchase intentions). These results underline the complex dynamics involved in individual range satisfaction, as well as its central role for BEV acceptance. Copyright © 2017 Elsevier Ltd. All rights reserved.

  18. Development of the seafloor acoustic ranging system

    Science.gov (United States)

    Osada, Y.; Kido, M.; Fujimoto, H.

    2007-12-01

    We have developed a seafloor acoustic ranging system, which simulates an operation with the DONET (Development of Dense Ocean-floor Network System for Earthquake and Tsunami) cable, to monitor seafloor crustal movement. The seafloor acoustic ranging system was based on the precise acoustic transponder (PXP). We have a few problems for the improvement of the resolution. One thing is the variation of sound speed. Another is the bending of ray path. A PXP measures horizontal distances on the seafloor from the round trip travel times of acoustic pulses between pairs of PXP. The PXP was equipped with the pressure, temperature gauge and tilt-meter. The variation of sound speed in seawater has a direct effect on the measurement. Therefore we collect the data of temperature and pressure. But we don't collect the data of salinity because of less influence than temperature and pressure. Accordingly a ray path of acoustic wave tends to be bent upward in the deep sea due to the Snell's law. As the acoustic transducer of each PXPs held about 3.0m above the seafloor, the baseline is too long for altitude from the seafloor. In this year we carried out the experiment for the seafloor acoustic ranging system. We deployed two PXPs at about 750m spacing on Kumano-nada. The water depth is about 2050m. We collected the 660 data in this experiment during one day. The round trip travel time show the variation with peak-to-peak amplitude of about 0.03msec. It was confirmed to explain the majority in this change by the change in sound speed according to the temperature and pressure. This results shows the resolution of acoustic measurements is +/-2mm. Acknowledgement This study is supported by 'DONET' of Ministry of Education, Culture, Sports, Science and Technology.

  19. Limited Range Sesame EOS for Ta

    Energy Technology Data Exchange (ETDEWEB)

    Greeff, Carl William [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Crockett, Scott [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Rudin, Sven Peter [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Burakovsky, Leonid [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-03-30

    A new Sesame EOS table for Ta has been released for testing. It is a limited range table covering T ≤ 26, 000 K and ρ ≤ 37.53 g/cc. The EOS is based on earlier analysis using DFT phonon calculations to infer the cold pressure from the Hugoniot. The cold curve has been extended into compression using new DFT calculations. The present EOS covers expansion into the gas phase. It is a multi-phase EOS with distinct liquid and solid phases. A cold shear modulus table (431) is included. This is based on an analytic interpolation of DFT calculations.

  20. Fast Range Covariance Estimation using CONRAD

    Energy Technology Data Exchange (ETDEWEB)

    De Saint Jean, C.; Habert, B.; Noguere, G.; Archier, P.; Litaize, O.; Ruggieri, J.M. [CEA-Cadarache, DER/SPRC/LEPh, 13 - St-Paul-Lez-Durance (France)

    2009-07-01

    One of the initial goals of the CONRAD code development was to properly take into account various uncertainties propagations. First developments were performed to treat adequately nuisance parameters (such as experimental parameters), in the resolved and unresolved resonance region by using a marginalization technique. A generalization of these methodologies to higher energy range is presented in this paper. We will first present in detail the mathematics involved in this technique. The interface of CONRAD with ECIS will be presented, especially, the way optical model were parameterized in CONRAD from the classical RIPL database. Then, some applications of CONRAD (wrapping ECIS) will be presented. (authors)

  1. Tracking capabilities of SPADs for laser ranging

    Science.gov (United States)

    Zappa, F.; Ripamonti, Giancarlo; Lacaita, A.; Cova, Sergio; Samori, C.

    1993-01-01

    The spatial sensitivity of Single-Photon Avalanche Diodes (SPADs) can be exploited in laser ranging measurements to finely tune the laser spot in the center of the detector sensitive area. We report the performance of a SPAD with l00 micron diameter. It features a time resolution better than 80 ps rms when operated 4V above V(b) at minus 30 C, and a spatial sensitivity better than 20 microns to radial displacements of the laser spot. New SPAD structures with auxiliary delay detectors are proposed. These improved devices could allow a two dimensional sensitivity, that could be employed for the design of pointing servos.

  2. Unitarity corrections to short-range order long-range rapidity correlations

    CERN Document Server

    Capella, A

    1978-01-01

    Although the effective hadronic forces have short range in rapidity space, one nevertheless expects long-range dynamical correlations induced by unitarity constraints. This paper contains a thorough discussion of long-range rapidity correlations in high-multiplicity events. In particular, the authors analyze in detail the forward- backward multiplicity correlations, measured recently in the whole CERN ISR energy range. They find from these data that the normalized variance of the number n of exchanged cut Pomerons, ((n/(n)-1)/sup 2/) , is most probably in the range 0.32 to 0.36. They show that such a number is obtained from Reggeon theory in the eikonal approximation. The authors also predict a very specific violation of local compensation of charge in multiparticle events: The violation should appear in the fourth-order zone correlation function and is absent in the second-order correlation function, the only one measured until now. (48 refs).

  3. Climate-driven range extension of Amphistegina (protista, foraminiferida: models of current and predicted future ranges.

    Directory of Open Access Journals (Sweden)

    Martin R Langer

    Full Text Available Species-range expansions are a predicted and realized consequence of global climate change. Climate warming and the poleward widening of the tropical belt have induced range shifts in a variety of marine and terrestrial species. Range expansions may have broad implications on native biota and ecosystem functioning as shifting species may perturb recipient communities. Larger symbiont-bearing foraminifera constitute ubiquitous and prominent components of shallow water ecosystems, and range shifts of these important protists are likely to trigger changes in ecosystem functioning. We have used historical and newly acquired occurrence records to compute current range shifts of Amphistegina spp., a larger symbiont-bearing foraminifera, along the eastern coastline of Africa and compare them to analogous range shifts currently observed in the Mediterranean Sea. The study provides new evidence that amphisteginid foraminifera are rapidly progressing southwestward, closely approaching Port Edward (South Africa at 31°S. To project future species distributions, we applied a species distribution model (SDM based on ecological niche constraints of current distribution ranges. Our model indicates that further warming is likely to cause a continued range extension, and predicts dispersal along nearly the entire southeastern coast of Africa. The average rates of amphisteginid range shift were computed between 8 and 2.7 km year(-1, and are projected to lead to a total southward range expansion of 267 km, or 2.4° latitude, in the year 2100. Our results corroborate findings from the fossil record that some larger symbiont-bearing foraminifera cope well with rising water temperatures and are beneficiaries of global climate change.

  4. Climate-driven range extension of Amphistegina (protista, foraminiferida): models of current and predicted future ranges.

    Science.gov (United States)

    Langer, Martin R; Weinmann, Anna E; Lötters, Stefan; Bernhard, Joan M; Rödder, Dennis

    2013-01-01

    Species-range expansions are a predicted and realized consequence of global climate change. Climate warming and the poleward widening of the tropical belt have induced range shifts in a variety of marine and terrestrial species. Range expansions may have broad implications on native biota and ecosystem functioning as shifting species may perturb recipient communities. Larger symbiont-bearing foraminifera constitute ubiquitous and prominent components of shallow water ecosystems, and range shifts of these important protists are likely to trigger changes in ecosystem functioning. We have used historical and newly acquired occurrence records to compute current range shifts of Amphistegina spp., a larger symbiont-bearing foraminifera, along the eastern coastline of Africa and compare them to analogous range shifts currently observed in the Mediterranean Sea. The study provides new evidence that amphisteginid foraminifera are rapidly progressing southwestward, closely approaching Port Edward (South Africa) at 31°S. To project future species distributions, we applied a species distribution model (SDM) based on ecological niche constraints of current distribution ranges. Our model indicates that further warming is likely to cause a continued range extension, and predicts dispersal along nearly the entire southeastern coast of Africa. The average rates of amphisteginid range shift were computed between 8 and 2.7 km year(-1), and are projected to lead to a total southward range expansion of 267 km, or 2.4° latitude, in the year 2100. Our results corroborate findings from the fossil record that some larger symbiont-bearing foraminifera cope well with rising water temperatures and are beneficiaries of global climate change.

  5. Enhanced dynamic range x-ray imaging.

    Science.gov (United States)

    Haidekker, Mark A; Morrison, Logan Dain-Kelley; Sharma, Ajay; Burke, Emily

    2017-03-01

    X-ray images can suffer from excess contrast. Often, image exposure is chosen to visually optimize the region of interest, but at the expense of over- and underexposed regions elsewhere in the image. When image values are interpreted quantitatively as projected absorption, both over- and underexposure leads to the loss of quantitative information. We propose to combine multiple exposures into a composite that uses only pixels from those exposures in which they are neither under- nor overexposed. The composite image is created in analogy to visible-light high dynamic range photography. We present the mathematical framework for the recovery of absorbance from such composite images and demonstrate the method with biological and non-biological samples. We also show with an aluminum step-wedge that accurate recovery of step thickness from the absorbance values is possible, thereby highlighting the quantitative nature of the presented method. Due to the higher amount of detail encoded in an enhanced dynamic range x-ray image, we expect that the number of retaken images can be reduced, and patient exposure overall reduced. We also envision that the method can improve dual energy absorptiometry and even computed tomography by reducing the number of low-exposure ("photon-starved") projections. Copyright © 2017 Elsevier Ltd. All rights reserved.

  6. Vehicle based laser range finding in crops.

    Science.gov (United States)

    Ehlert, Detlef; Adamek, Rolf; Horn, Hans-Juergen

    2009-01-01

    Laser rangefinders and laser scanners are widely used for industrial purposes and for remote sensing. In agriculture information about crop parameters like volume, height, and density can support the optimisation of production processes. In scientific papers the measurement of these parameters by low cost laser rangefinders with one echo has been presented for short ranges. Because the cross section area of the beam increases with the measuring range, it can be expected that laser rangefinders will have a reduced measuring accuracy in small sized crops and when measuring far distances. These problems are caused by target areas smaller than the beam and by the beam striking the edges of crop objects. Lab tests under defined conditions and a real field test were performed to assess the measuring properties under such difficult conditions of a chosen low cost sensor. Based on lab tests it was shown that the accuracy was reduced, but the successful use of the sensor under field conditions demonstrated the potential to meet the demands for agricultural applications, Insights resulting from investigations made in the paper contribute to facilitating the choice or the development of laser rangefinder sensors for vehicle based measurement of crop parameters for optimisation of production processes.

  7. SVSVGMKPSPRP: a broad range adhesion peptide.

    Science.gov (United States)

    Estephan, Elias; Dao, Jérôme; Saab, Marie-Belle; Panayotov, Ivan; Martin, Marta; Larroque, Christian; Gergely, Csilla; Cuisinier, Frédéric J G; Levallois, Bernard

    2012-12-01

    A combinatorial phage display approach was previously used to evolve a 12-mer peptide (SVSVGMKPSPRP) with the highest affinity for different semiconductor surfaces. The discovery of the multiple occurrences of the SVSVGMKPSPRP sequence in an all-against-all basic local alignment search tool search of PepBank sequences was unexpected, and a Google search using the peptide sequence recovered 58 results concerning 12 patents and 16 scientific publications. The number of patent and articles indicates that the peptide is perhaps a broad range adhesion peptide. To evaluate peptide properties, we conducted a study to investigate peptide adhesion on different inorganic substrates by mass spectrometry and atomic force microscopy for gold, carbon nanotubes, cobalt, chrome alloy, titanium, and titanium alloy substrates. Our results showed that the peptide has a great potential as a linker to functionalize metallic surfaces if specificity is not a key factor. This peptide is not specific to a particular metal surface, but it is a good linker for the functionalization of a wide range of metallic materials. The fact that this peptide has the potential to adsorb on a large set of inorganic surfaces suggests novel promising directions for further investigation. Affinity determination of SVSVGMKPSPRP peptide would be an important issue for eventual commercial uses.

  8. Perceived glossiness in high dynamic range scenes.

    Science.gov (United States)

    Doerschner, Katja; Maloney, Laurence T; Boyaci, Huseyin

    2010-01-01

    We investigated how spatial pattern, background, and dynamic range affect perceived gloss in brightly lit real scenes. Observers viewed spherical objects against uniform backgrounds. There were three possible objects. Two were black matte spheres with circular matte white dots painted on them (matte-dot spheres). The third sphere was painted glossy black (glossy black sphere). Backgrounds were either black or white matte, and observers saw each of the objects in turn on each background. Scenes were illuminated by an intense collimated source. On each trial, observers matched the apparent albedo of the sphere to an albedo reference scale and its apparent gloss to a gloss reference scale. We found that matte-dot spheres and the black glossy sphere were perceived as glossy on both backgrounds. All spheres were judged to be significantly glossier when in front of the black background. In contrast with previous research using conventional computer displays, we find that background markedly affects perceived gloss. This finding is surprising because darker surfaces are normally perceived as glossier (F. Pellacini, J. A. Ferwerda, & D. P. Greenberg, 2000). We conjecture that there are cues to surface material signaling glossiness present in high dynamic range scenes that are absent or weak in scenes presented using conventional computer displays.

  9. Perceptual Contrast Enhancement with Dynamic Range Adjustment

    Science.gov (United States)

    Zhang, Hong; Li, Yuecheng; Chen, Hao; Yuan, Ding; Sun, Mingui

    2013-01-01

    Recent years, although great efforts have been made to improve its performance, few Histogram equalization (HE) methods take human visual perception (HVP) into account explicitly. The human visual system (HVS) is more sensitive to edges than brightness. This paper proposes to take use of this nature intuitively and develops a perceptual contrast enhancement approach with dynamic range adjustment through histogram modification. The use of perceptual contrast connects the image enhancement problem with the HVS. To pre-condition the input image before the HE procedure is implemented, a perceptual contrast map (PCM) is constructed based on the modified Difference of Gaussian (DOG) algorithm. As a result, the contrast of the image is sharpened and high frequency noise is suppressed. A modified Clipped Histogram Equalization (CHE) is also developed which improves visual quality by automatically detecting the dynamic range of the image with improved perceptual contrast. Experimental results show that the new HE algorithm outperforms several state-of-the-art algorithms in improving perceptual contrast and enhancing details. In addition, the new algorithm is simple to implement, making it suitable for real-time applications. PMID:24339452

  10. Normal values for cervical range of motion.

    Science.gov (United States)

    Swinkels, Raymond A H M; Swinkels-Meewisse, Ilse E J C M

    2014-03-01

    Cohort study. To generate normal values for active range of motion (ACROM) of the cervical spine in asymptomatic persons. There is a lack of normal values for ACROM based on large groups and stratified for different age categories. Four hundred asymptomatic persons were included, 100 for each decade of age from 20 years to 60 years and in each subgroup 50 males and 50 females. ACROM was measured with the cervical range of motion (CROM) device. Analysis of variance and the Scheffé post hoc test was used to investigate the differences of ACROM between the decades of age. Linear regression analysis was performed to examine the influence of age and sex on ACROM. The results of this study show that the ACROM decreases significantly in persons older than 50 years for all directions except extension and side flexion compared with that in the subgroup aged 40 to 50. Age had an overall significant effect on the ACROM for all directions. Sex proved to have no significant effect on the ACROM. Normal values were established for ACROM in a group of 400 persons without neck complaints. It was demonstrated that age has a significant influence on the ACROM, but sex has no influence. N/A.

  11. Parallel Track Initiation for Optical Space Surveillance Using Range and Range Rate Bounds

    Science.gov (United States)

    Schumacher, P.; Roscoe, C.; Wilkins, M.

    2013-09-01

    As new optical sensors come online and more optical observations become available for space objects previously too small or too far away to detect, the space surveillance community is presented with the computationally challenging problem of generating initial orbit solutions (data association hypotheses) for a large number of short-arc line-of-sight observations. Traditional methods of angles-only orbit determination do not scale well to large problems because of the large number of combinations of observations that must be evaluated, since these methods require at least 3 observations for each initial orbit determination (IOD). On the other hand, if unique ranges are known (or assumed) then IOD can be performed with 2 observations using a Lambert-based approach. Furthermore, if angles and angle rates are available and range and range rate are both known (or assumed) then a complete orbit solution can be obtained for a single observation and the IOD computational load is only O(N). One possible method to deal with line-of-sight data is to assign a number of range hypotheses to each angles-only observation and develop data association hypotheses to be either confirmed or eliminated for each one. This approach would allow the use of the already proven Search and Determine (SAD) algorithm and software that was designed for generating and testing data association hypotheses for position-type observations typical of radar sensors. If the number of range hypotheses can be limited then this method will be more computationally efficient than performing pure angles-only IOD. If angle rates are available or can be derived from the observation data then another possible approach is to assign range and range rate hypotheses to each angle-angle rate pair and develop data association hypotheses based on their corresponding orbit solutions, which will be extremely efficient if the range-range rate hypothesis set can be limited. For both of these methods, once range and range

  12. Free Range Hens Use the Range More When the Outdoor Environment Is Enriched

    Directory of Open Access Journals (Sweden)

    T. A. D. Nagle

    2012-04-01

    Full Text Available To evaluate the role of using forage, shade and shelterbelts in attracting birds into the range, three trials were undertaken with free range layers both on a research facility and on commercial farms. Each of the trials on the free range research facility in South Australia used a total of 120 laying hens (Hyline Brown. Birds were housed in an eco-shelter which had 6 internal pens of equal size with a free range area adjoining the shelter. The on-farm trials were undertaken on commercial free range layer farms in the Darling Downs in Southeast Queensland with bird numbers on farms ranging from 2,000–6,800 hens. The first research trial examined the role of shaded areas in the range; the second trial examined the role of forage and the third trial examined the influence of shelterbelts in the range. These treatments were compared to a free range area with no enrichment. Aggressive feather pecking was only observed on a few occasions in all of the trials due to the low bird numbers housed. Enriching the free range environment attracted more birds into the range. Shaded areas were used by 18% of the hens with a tendency (p = 0.07 for more hens to be in the paddock. When forage was provided in paddocks more control birds (55% were observed in the range in morning than in the afternoon (30% while for the forage treatments 45% of the birds were in the range both during the morning and afternoon. When shelterbelts were provided there was a significantly (p<0.05 higher % of birds in the range (43% vs. 24% and greater numbers of birds were observed in areas further away from the poultry house. The results from the on-farm trials mirrored the research trials. Overall 3 times more hens used the shaded areas than the non shaded areas, with slightly more using the shade in the morning than in the afternoon. As the environmental temperature increased the number of birds using the outdoor shade also increased. Overall 17 times more hens used the shelterbelt

  13. Revised tephra volumes for Cascade Range volcanoes

    Science.gov (United States)

    Nathenson, Manuel

    2017-01-01

    Isopach maps from tephra eruptions from Mount St. Helens were reported in Carey et al. (1995) and for tephra eruptions from Glacier Peak in Gardner et al. (1998). For exponential thinning, the isopach data only define a single slope on a log thickness versus square root of area plot. Carey et al. (1995) proposed a model that was used to estimate a second slope, and volumes were presented in both studies using this model. A study by Sulpizio (2005) for estimating the second slope and square root of area where the lines intersect involves a systematic analysis of many eruptions to provide correlation equations. The purpose of this paper is to recalculate the volumes of Cascades eruptions and compare results from the two methods. In order to gain some perspective on the methods for estimating the second slope, we use data for thickness versus distance beyond the last isopach that are available for some of the larger eruptions in the Cascades. The thickness versus square root of area method is extended to thickness versus distance by developing an approximate relation between the two assuming elliptical isopachs with the source at one of the foci. Based on the comparisons made between the Carey et al. (1995) and Sulpizio (2005) methods, it is felt that the later method provides a better estimate of the second slope. For Mount St. Helens, the estimates of total volume using the Sulpizio (2005) method are generally smaller than those using the Carey et al. (1995) method. For the volume estimates of Carey et al. (1995), the volume of the May 18, 1980, eruption of Mount St. Helens is smaller than six of the eight previous eruptions. With the new volumes using the Sulpizio (2005) method, the 1980 eruption is smaller in volume than the upper end of the range for only three of the layers (Wn, Ye, and Yn) and is the same size as layer We. Thus the 1980 eruption becomes representative of the mid-range of volumes rather than being in the lower range.

  14. Sampling Number Effects in 2D and Range Imaging of Range-gated Acquisition

    Energy Technology Data Exchange (ETDEWEB)

    Kwon, Seong-Ouk; Park, Seung-Kyu; Baik, Sung-Hoon; Cho, Jai-Wan; Jeong, Kyung-Min [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2015-10-15

    In this paper, we analyzed the number effects of sampling images for making a 2D image and a range image from acquired RGI images. We analyzed the number effects of RGI images for making a 2D image and a range image using a RGI vision system. As the results, 2D image quality was not much depended on the number of sampling images but on how much well extract efficient RGI images. But, the number of RGI images was important for making a range image because range image quality was proportional to the number of RGI images. Image acquiring in a monitoring area of nuclear industry is an important function for safety inspection and preparing appropriate control plans. To overcome the non-visualization problem caused by airborne obstacle particles, vision systems should have extra-functions, such as active illumination lightening through disturbance airborne particles. One of these powerful active vision systems is a range-gated imaging system. The vision system based on the range-gated imaging system can acquire image data from raining or smoking environments. Range-gated imaging (RGI) is a direct active visualization technique using a highly sensitive image sensor and a high intensity illuminant. Currently, the range-gated imaging technique providing 2D and 3D images is one of emerging active vision technologies. The range-gated imaging system gets vision information by summing time sliced vision images. In the RGI system, a high intensity illuminant illuminates for ultra-short time and a highly sensitive image sensor is gated by ultra-short exposure time to only get the illumination light. Here, the illuminant illuminates objects by flashing strong light through airborne disturbance particles. Thus, in contrast to passive conventional vision systems, the RGI active vision technology robust for low-visibility environments.

  15. Climate driven range divergence among host species affects range-wide patterns of parasitism

    Directory of Open Access Journals (Sweden)

    Richard E. Feldman

    2017-01-01

    Full Text Available Species interactions like parasitism influence the outcome of climate-driven shifts in species ranges. For some host species, parasitism can only occur in that part of its range that overlaps with a second host species. Thus, predicting future parasitism may depend on how the ranges of the two hosts change in relation to each other. In this study, we tested whether the climate driven species range shift of Odocoileus virginianus (white-tailed deer accounts for predicted changes in parasitism of two other species from the family Cervidae, Alces alces (moose and Rangifer tarandus (caribou, in North America. We used MaxEnt models to predict the recent (2000 and future (2050 ranges (probabilities of occurrence of the cervids and a parasite Parelaphostrongylus tenuis (brainworm taking into account range shifts of the parasite’s intermediate gastropod hosts. Our models predicted that range overlap between A. alces/R. tarandus and P. tenuis will decrease between 2000 and 2050, an outcome that reflects decreased overlap between A. alces/R. tarandus and O. virginianus and not the parasites, themselves. Geographically, our models predicted increasing potential occurrence of P. tenuis where A. alces/R. tarandus are likely to decline, but minimal spatial overlap where A. alces/R. tarandus are likely to increase. Thus, parasitism may exacerbate climate-mediated southern contraction of A. alces and R. tarandus ranges but will have limited influence on northward range expansion. Our results suggest that the spatial dynamics of one host species may be the driving force behind future rates of parasitism for another host species.

  16. Unsynchronized scanning with a low-cost laser range finder for real-time range imaging

    Science.gov (United States)

    Hatipoglu, Isa; Nakhmani, Arie

    2017-06-01

    Range imaging plays an essential role in many fields: 3D modeling, robotics, heritage, agriculture, forestry, reverse engineering. One of the most popular range-measuring technologies is laser scanner due to its several advantages: long range, high precision, real-time measurement capabilities, and no dependence on lighting conditions. However, laser scanners are very costly. Their high cost prevents widespread use in applications. Due to the latest developments in technology, now, low-cost, reliable, faster, and light-weight 1D laser range finders (LRFs) are available. A low-cost 1D LRF with a scanning mechanism, providing the ability of laser beam steering for additional dimensions, enables to capture a depth map. In this work, we present an unsynchronized scanning with a low-cost LRF to decrease scanning period and reduce vibrations caused by stop-scan in synchronized scanning. Moreover, we developed an algorithm for alignment of unsynchronized raw data and proposed range image post-processing framework. The proposed technique enables to have a range imaging system for a fraction of the price of its counterparts. The results prove that the proposed method can fulfill the need for a low-cost laser scanning for range imaging for static environments because the most significant limitation of the method is the scanning period which is about 2 minutes for 55,000 range points (resolution of 250x220 image). In contrast, scanning the same image takes around 4 minutes in synchronized scanning. Once faster, longer range, and narrow beam LRFs are available, the methods proposed in this work can produce better results.

  17. Interference of lee waves over mountain ranges

    Directory of Open Access Journals (Sweden)

    N. I. Makarenko

    2011-01-01

    Full Text Available Internal waves in the atmosphere and ocean are generated frequently from the interaction of mean flow with bottom obstacles such as mountains and submarine ridges. Analysis of these environmental phenomena involves theoretical models of non-homogeneous fluid affected by the gravity. In this paper, a semi-analytical model of stratified flow over the mountain range is considered under the assumption of small amplitude of the topography. Attention is focused on stationary wave patterns forced above the rough terrain. Adapted to account for such terrain, model equations involves exact topographic condition settled on the uneven ground surface. Wave solutions corresponding to sinusoidal topography with a finite number of peaks are calculated and examined.

  18. Broader range of skills distinguishes successful CFOs.

    Science.gov (United States)

    Doody, M F

    2000-09-01

    In recent years, healthcare CFOs have seen their role expand significantly beyond traditional financial duties. A series of trended surveys on CFO roles and responsibilities reveals that today's healthcare CFO requires a broad new range of traits and skills in the areas of leadership, operations, and healthcare strategy. CFOs regard strategic thinking and the ability to communicate clearly as the most important of their essential leadership traits and skills, respectively. Among operational and strategic skills, CFOs most often cite the importance of being able to improve organizational performance and benchmark. Healthcare CFOs can enhance their chances of success by focusing self-improvement efforts on five key areas: implementing the organization's vision; developing tactics that stimulate change; enhancing communication skills; focusing on managing and leading; and strengthening relationships.

  19. An introduction to optimal satellite range scheduling

    CERN Document Server

    Vázquez Álvarez, Antonio José

    2015-01-01

    The satellite range scheduling (SRS) problem, an important operations research problem in the aerospace industry consisting of allocating tasks among satellites and Earth-bound objects, is examined in this book. SRS principles and solutions are applicable to many areas, including: Satellite communications, where tasks are communication intervals between sets of satellites and ground stations Earth observation, where tasks are observations of spots on the Earth by satellites Sensor scheduling, where tasks are observations of satellites by sensors on the Earth. This self-contained monograph begins with a structured compendium of the problem and moves on to explain the optimal approach to the solution, which includes aspects from graph theory, set theory, game theory and belief networks. This book is accessible to students, professionals and researchers in a variety of fields, including: operations research, optimization, scheduling theory, dynamic programming and game theory. Taking account of the distributed, ...

  20. Principles of digital dynamic-range compression.

    Science.gov (United States)

    Kates, James M

    2005-01-01

    This article provides an overview of dynamic-range compression in digital hearing aids. Digital technology is becoming increasingly common in hearing aids, particularly because of the processing flexibility it offers and the opportunity to create more-effective devices. The focus of the paper is on the algorithms used to build digital compression systems. Of the various approaches that can be used to design a digital hearing aid, this paper considers broadband compression, multi-channel filter banks, a frequency-domain compressor using the FFT, the side-branch design that separates the filtering operation from the frequency analysis, and the frequency-warped version of the side-branch approach that modifies the analysis frequency spacing to more closely match auditory perception. Examples of the compressor frequency resolution, group delay, and compression behavior are provided for the different design approaches.

  1. Long-range interaction of anisotropic systems

    KAUST Repository

    Zhang, Junyi

    2015-02-01

    The first-order electrostatic interaction energy between two far-apart anisotropic atoms depends not only on the distance between them but also on their relative orientation, according to Rayleigh-Schrödinger perturbation theory. Using the first-order interaction energy and the continuum model, we study the long-range interaction between a pair of parallel pristine graphene sheets at zero temperature. The asymptotic form of the obtained potential density, &epsi:(D) &prop: ?D ?3 ?O(D?4), is consistent with the random phase approximation and Lifshitz theory. Accordingly, neglectance of the anisotropy, especially the nonzero first-order interaction energy, is the reason why the widely used Lennard-Jones potential approach and dispersion corrections in density functional theory give a wrong asymptotic form ε(D) &prop: ?D?4. © EPLA, 2015.

  2. Range-preserving AE(0-spaces

    Directory of Open Access Journals (Sweden)

    W.W. Comfort

    2013-07-01

    Full Text Available All spaces here are Tychonoff spaces. The class AE(0 consists of those spaces which are absolute extensors for compact zero-dimensional spaces. We define and study here the subclass AE(0rp, consisting of those spaces for which extensions of continuous functions can be chosen to have the same range. We prove these results. If each point of T 2 AE(0 is a G-point of T , then T 2 AE(0rp. These are equivalent: (a T 2 AE(0rp; (b every compact subspace of T is metrizable; (c every compact subspace of T is dyadic; and (d every subspace of T is AE(0. Thus in particular, every metrizable space is an AE(0rp-space.

  3. Range of drainage effect of surface mines

    Energy Technology Data Exchange (ETDEWEB)

    Sozanski, J.

    1978-03-01

    This paper discusses methods of calculating the range of effects of water drainage from surface coal mines and other surface mines. It is suggested that methods based on test pumping (water drainage) are time consuming, and the results can be distorted by atmospheric factors such as rain fall or dry period. So-called empirical formulae produce results which are often incorrect. The size of a cone shaped depression calculated on the basis of empirical formulae can be ten times smaller than the size of the real depression. It is suggested that using a formula based on the Dupuit formula is superior to other methods of depression calculation. According to the derived formulae the radius of the depresion cone is a function of parameters of the water bearing horizons, size of surface mine working and of water depression. The proposed formula also takes into account the influence of atmospheric factors (water influx caused by precipitation, etc.). (1 ref.) (In Polish)

  4. Semiconductor Sensors for a Wide Temperature Range

    Directory of Open Access Journals (Sweden)

    Nikolay GORBACHUK

    2014-01-01

    Full Text Available Prototype sensors are described that are applicable for pressure, position, temperature, and field measurements in the temperature range of 4.2 to 300 K. The strain gauges utilize the silicon substrate and thin film technology. The tensosensitivity of strain sensors is 40 µV/mln-1 or better depending on metrological characteristics of semiconductor films, orientation, and current. The temperature sensors (thermistors make use of the germanium powder bulk. The temperature coefficient of resistance is within 50-100 % /K at 4.2 K. The magnetic field sensors use GaAs films that offer weak temperature dependence of parameters at high sensitivity (up to 300-400 mV/T.

  5. Tonopah Test Range Post-Closure Inspection Annual Report, Tonopah Test Range, Nevada, Calendar Year 2003

    Energy Technology Data Exchange (ETDEWEB)

    U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office; Bechtel Nevada

    2004-04-01

    This post-closure inspection report provides documentation of the semiannual inspection activities, maintenance and repair activities, and conclusions and recommendations for calendar year 2003 for eight corrective action units located on the Tonopah Test Range, Nevada.

  6. Evolution of Topography in Glaciated Mountain Ranges

    Science.gov (United States)

    Brocklehurst, Simon H.

    2002-01-01

    This thesis examines the response of alpine landscapes to the onset of glaciation. The basic approach is to compare fluvial and glacial laudscapes, since it is the change from the former to the latter that accompanies climatic cooling. This allows a detailed evaluation of hypotheses relating climate change to tectonic processes in glaciated mountain belts. Fieldwork was carried out in the eastern Sierra Nevada, California, and the Sangre de Cristo Range, Colorado, alongside digital elevation model analyses in the western US, the Southern Alps of New Zealand, and the Himalaya of northwestern Pakistan. hypothesis is overstated in its appeal to glacial erosion as a major source of relief production and subsequent peak uplift. Glaciers in the eastern Sierra Nevada and the western Sangre de Cristos have redistributed relief, but have produced only modest relief by enlarging drainage basins at the expense of low-relief topography. Glaciers have lowered valley floors and ridgelines by similar amounts, limiting the amount of "missing mass' that can be generated, and causing a decrease in drainage basin relief. The principal response of glaciated landscapes to rapid rock uplift is the development of towering cirque headwalls. This represents considerable relief production, but is not caused by glacial erosion alone. Large valley glaciers can maintain their low gradient regardless of uplift rate, which supports the "glacial buzzsaw" hypothesis. However, the inability of glaciers to erode steep hillslopes as rapidly can cause mean elevations to rise. Cosmogenic isotope dating is used to show that (i) where plucking is active, the last major glaciation removed sufficient material to reset the cosmogenic clock; and (ii) former glacial valley floors now stranded near the crest of the Sierra Nevada are at varying stages of abandonment, suggesting a cycle of drainage reorganiszation and relief inversion due to glacial erosion similar to that observed in river networks. Glaciated

  7. A survey of commercially available broilers marketed as organic, free-range, and conventional broilers for cooked meat yields, meat composition, and relative value.

    Science.gov (United States)

    Husak, R L; Sebranek, J G; Bregendahl, K

    2008-11-01

    The objective of this survey was to investigate qualitative and quantitative properties of meat from organic, free-range, and conventional broilers as currently provided to consumers. Fifteen broilers from 4 suppliers of each type were evaluated for raw meat yield, cooked meat yield, proximate composition, pH, color, lipid oxidation, fatty acid composition, and sensory attributes. Organic broilers yielded more dark (thigh) meat (P conventional, when compared on a raw-meat basis, but conventional and free-range broilers yielded more (P organic. Protein content of organic breast and thigh meat was greater (P conventional in the raw and the cooked meat comparisons. The pH of breast meat from organic broilers was higher (P conventional. Organic breast and thigh meat was less yellow (P conventional. Fatty acid analysis showed that organic breasts and thighs were lower (P conventional broilers. Shear force measurements were less (P conventional broilers relative to free-range and organic broilers. Sensory panel results indicated that thighs from conventional broilers were more tender (P organic broilers, whereas other sensory properties did not differ. At the time of the study, March through May of 2006, the average retail prices for US broilers were USD 3.19, USD 2.78, and USD 1.29 per pound (USD 7.03, USD 6.13, and USD 2.84/kg) for organic, free-range, and conventional, respectively. Whereas a difference in the fatty acid composition was the largest difference observed between retail broilers in this survey, it is important to note that diets and production environments within the study were not controlled. It is apparent that the market prices for broilers at the time of this study are not fully reflected in the quantitative and qualitative measurements included in this study. It appears that consumers may be placing significant value on more intangible attributes associated with broilers marketed as organic and free-range chicken than on those attributes measured in

  8. Wide Range Multiscale Entropy Changes through Development

    Directory of Open Access Journals (Sweden)

    Nicola R. Polizzotto

    2015-12-01

    Full Text Available How variability in the brain’s neurophysiologic signals evolves during development is important for a global, system-level understanding of brain maturation and its disturbance in neurodevelopmental disorders. In the current study, we use multiscale entropy (MSE, a measure that has been related to signal complexity, to investigate how this variability evolves during development across a broad range of temporal scales. We computed MSE, standard deviation (STD and standard spectral analyses on resting EEG from 188 healthy individuals aged 8–22 years old. We found age-related increases in entropy at lower scales (<~20 ms and decreases in entropy at higher scales (~60–80 ms. Decreases in the overall signal STD were anticorrelated with entropy, especially in the lower scales, where regression analyses showed substantial covariation of observed changes. Our findings document for the first time the scale dependency of developmental changes from childhood to early adulthood, challenging a parsimonious MSE-based account of brain maturation along a unidimensional, complexity measure. At the level of analysis permitted by electroencephalography (EEG, MSE could capture critical spatiotemporal variations in the role of noise in the brain. However, interpretations critically rely on defining how signal STD affects MSE properties.

  9. Survivial Strategies in Bacterial Range Expansions

    Science.gov (United States)

    Frey, Erwin

    2014-03-01

    Bacterial communities represent complex and dynamic ecological systems. Different environmental conditions as well as bacterial interactions determine the establishment and sustainability of bacterial diversity. In this talk we discuss the competition of three Escherichia coli strains during range expansions on agar plates. In this bacterial model system, a colicin E2 producing strain C competes with a colicin resistant strain R and with a colicin sensitive strain S for new territory. Genetic engineering allows us to tune the growth rates of the strains and to study distinct ecological scenarios. These scenarios may lead to either single-strain dominance, pairwise coexistence, or to the coexistence of all three strains. In order to elucidate the survival mechanisms of the individual strains, we also developed a stochastic agent-based model to capture the ecological scenarios in silico. In a combined theoretical and experimental approach we are able to show that the level of biodiversity depends crucially on the composition of the inoculum, on the relative growth rates of the three strains, and on the effective reach of colicin toxicity.

  10. Frequency ranges and attenuation of macroseismic effects

    Science.gov (United States)

    Tosi, Patrizia; De Rubeis, Valerio; Sbarra, Paola

    2017-09-01

    Macroseismic intensity is assessed on the basis of the effects caused by an earthquake. These effects reflect the expression of both the intensity and frequency of the ground motion, thus complicating prediction equation modelling. Here we analysed data of several macroseismic transitory effects caused by recent Italian earthquakes in order to study their attenuation as a function of magnitude and hypocentral distance and to obtain a specific prediction equation, of simple functional form, that could be applied to each of the effects under analysis. We found that the different attenuation behaviours could be clearly defined by the values of the specially formulated magnitude-distance scaling ratio (S), thus allowing to group the effects on the basis of the S value. The oscillation of hanging objects and liquids, together with the feeling of dizziness, were separated from most other variables, such as the effects of the earthquake on small objects, china and windows, which were caused by a vibration of higher frequency. Besides, the greater value of S, associated with the perception of the seismic sound, explained the peculiarity of this phenomenon. As a result, we recognized the frequency range associated with each effect through comparisons with the ground motion prediction equations and, in particular, with the 5 per cent damped horizontal response spectra. Here we show the importance of appropriately selecting the diagnostic elements to be used for intensity assessment in order to improve the correlation with ground motion.

  11. Stochastic processes and long range dependence

    CERN Document Server

    Samorodnitsky, Gennady

    2016-01-01

    This monograph is a gateway for researchers and graduate students to explore the profound, yet subtle, world of long-range dependence (also known as long memory). The text is organized around the probabilistic properties of stationary processes that are important for determining the presence or absence of long memory. The first few chapters serve as an overview of the general theory of stochastic processes which gives the reader sufficient background, language, and models for the subsequent discussion of long memory. The later chapters devoted to long memory begin with an introduction to the subject along with a brief history of its development, followed by a presentation of what is currently the best known approach, applicable to stationary processes with a finite second moment. The book concludes with a chapter devoted to the author’s own, less standard, point of view of long memory as a phase transition, and even includes some novel results. Most of the material in the book has not previously been publis...

  12. Relativistic tests with lunar laser ranging

    Science.gov (United States)

    Hofmann, F.; Müller, J.

    2018-02-01

    This paper presents the recent version of the lunar laser ranging (LLR) analysis model at the Institut für Erdmessung (IfE), Leibniz Universität Hannover and highlights a few tests of Einstein’s theory of gravitation using LLR data. Investigations related to a possible temporal variation of the gravitational constant, the equivalence principle, the PPN parameters β and γ as well as the geodetic precession were carried out. The LLR analysis model was updated by gravitational effects of the Sun and planets with the Moon as extended body. The higher-order gravitational interaction between Earth and Moon as well as effects of the solid Earth tides on the lunar motion were refined. The basis for the modeled lunar rotation is now a 2-layer core/mantle model according to the DE430 ephemeris. The validity of Einstein’s theory was studied using this updated analysis model and an LLR data set from 1970 to January 2015. Within the estimated accuracies, no deviations from Einstein’s theory are detected. A relative temporal variation of the gravitational constant is estimated as \\dot{G}/G_0=(7.1+/-7.6)×10-14~yr-1 , the test of the equivalence principle gives Δ(m_g/m_i)EM=(-3+/-5)×10-14 and the Nordtvedt parameter \

  13. Long-range forecasting of intermittent streamflow

    Directory of Open Access Journals (Sweden)

    F. F. van Ogtrop

    2011-11-01

    Full Text Available Long-range forecasting of intermittent streamflow in semi-arid Australia poses a number of major challenges. One of the challenges relates to modelling zero, skewed, non-stationary, and non-linear data. To address this, a statistical model to forecast streamflow up to 12 months ahead is applied to five semi-arid catchments in South Western Queensland. The model uses logistic regression through Generalised Additive Models for Location, Scale and Shape (GAMLSS to determine the probability of flow occurring in any of the systems. We then use the same regression framework in combination with a right-skewed distribution, the Box-Cox t distribution, to model the intensity (depth of the non-zero streamflows. Time, seasonality and climate indices, describing the Pacific and Indian Ocean sea surface temperatures, are tested as covariates in the GAMLSS model to make probabilistic 6 and 12-month forecasts of the occurrence and intensity of streamflow. The output reveals that in the study region the occurrence and variability of flow is driven by sea surface temperatures and therefore forecasts can be made with some skill.

  14. Home range and ranging behaviour of Bornean elephant (Elephas maximus borneensis) females.

    Science.gov (United States)

    Alfred, Raymond; Ahmad, Abd Hamid; Payne, Junaidi; Williams, Christy; Ambu, Laurentius Nayan; How, Phua Mui; Goossens, Benoit

    2012-01-01

    Home range is defined as the extent and location of the area covered annually by a wild animal in its natural habitat. Studies of African and Indian elephants in landscapes of largely open habitats have indicated that the sizes of the home range are determined not only by the food supplies and seasonal changes, but also by numerous other factors including availability of water sources, habitat loss and the existence of man-made barriers. The home range size for the Bornean elephant had never been investigated before. The first satellite tracking program to investigate the movement of wild Bornean elephants in Sabah was initiated in 2005. Five adult female elephants were immobilized and neck collars were fitted with tracking devices. The sizes of their home range and movement patterns were determined using location data gathered from a satellite tracking system and analyzed by using the Minimum Convex Polygon and Harmonic Mean methods. Home range size was estimated to be 250 to 400 km(2) in a non-fragmented forest and 600 km(2) in a fragmented forest. The ranging behavior was influenced by the size of the natural forest habitat and the availability of permanent water sources. The movement pattern was influenced by human disturbance and the need to move from one feeding site to another. Home range and movement rate were influenced by the degree of habitat fragmentation. Once habitat was cleared or converted, the availability of food plants and water sources were reduced, forcing the elephants to travel to adjacent forest areas. Therefore movement rate in fragmented forest was higher than in the non-fragmented forest. Finally, in fragmented habitat human and elephant conflict occurrences were likely to be higher, due to increased movement bringing elephants into contact more often with humans.

  15. Are fish outside their usual ranges early indicators of climate-driven range shifts?

    Science.gov (United States)

    Fogarty, Hannah E; Burrows, Michael T; Pecl, Gretta T; Robinson, Lucy M; Poloczanska, Elvira S

    2017-05-01

    Shifts in species ranges are a global phenomenon, well known to occur in response to a changing climate. New species arriving in an area may become pest species, modify ecosystem structure, or represent challenges or opportunities for fisheries and recreation. Early detection of range shifts and prompt implementation of any appropriate management strategies is therefore crucial. This study investigates whether 'first sightings' of marine species outside their normal ranges could provide an early warning of impending climate-driven range shifts. We examine the relationships between first sightings and marine regions defined by patterns of local climate velocities (calculated on a 50-year timescale), while also considering the distribution of observational effort (i.e. number of sampling days recorded with biological observations in global databases). The marine trajectory regions include climate 'source' regions (areas lacking connections to warmer areas), 'corridor' regions (areas where moving isotherms converge), and 'sink' regions (areas where isotherms locally disappear). Additionally, we investigate the latitudinal band in which first sightings were recorded, and species' thermal affiliations. We found that first sightings are more likely to occur in climate sink and 'divergent' regions (areas where many rapid and diverging climate trajectories pass through) indicating a role of temperature in driving changes in marine species distributions. The majority of our fish first sightings appear to be tropical and subtropical species moving towards high latitudes, as would be expected in climate warming. Our results indicate that first sightings are likely related to longer-term climatic processes, and therefore have potential use to indicate likely climate-driven range shifts. The development of an approach to detect impending range shifts at an early stage will allow resource managers and researchers to better manage opportunities resulting from range

  16. Relief Evolution in Tectonically Active Mountain Ranges

    Science.gov (United States)

    Whipple, Kelin X.

    2004-01-01

    The overall aims of this 3-yr project, as originally proposed were to: (1) investigate quantitatively the roles of fluvial and glacial erosion in the evolution of relief in mountainous regions, and (2) test rigorously the quality and accuracy of SRTM topographic data in areas of rugged relief - both the most challenging and of greatest interest to geomorphic, neotectonic, and hazards applications. Natural laboratories in both the western US and the Southern Alps of New Zealand were identified as most promising. The project has been both successful and productive, despite the fact that no SRTM data for our primary field sites in New Zealand were released on the time frame of the work effort. Given the delayed release of SRTM data, we pursued the scientific questions of the roles of fluvial and, especially, glacial erosion in the evolution of relief in mountainous regions using available digital elevation models (DEMs) for the Southern Alps of New Zealand (available at both 25m and 50m pixel sizes), and USGS 10m and 30m DEMs within the Western US. As emphasized in the original proposal, we chose the emphasis on the role of glacial modification of topographic relief because there has been little quantitative investigation of glacial erosion processes at landscape scale. This is particularly surprising considering the dramatic sculpting of most mid- and high-latitude mountain ranges, the prodigious quantities of glacially-derived sediment in terrestrial and marine basins, and the current cross-disciplinary interest in the role of denudational processes in orogenesis and the evolution of topography in general. Moreover, the evolution of glaciated landscapes is not only a fundamental problem in geomorphology in its own right, but also is at the heart of the debate over Late Cenozoic linkages between climate and tectonics.

  17. Relativity Parameters Determined from Lunar Laser Ranging

    Science.gov (United States)

    Williams, J. G.; Newhall, X. X.; Dickey, J. O.

    1996-01-01

    Analysis of 24 years of lunar laser ranging data is used to test the principle of equivalence, geodetic precession, the PPN parameters beta and gamma, and G/G. Recent data can be fitted with a rms scatter of 3 cm. (a) Using the Nordtvedt effect to test the principle of equivalence, it is found that the Moon and Earth accelerate alike in the Sun's field. The relative accelerations match to within 5 x 10(exp -13) . This limit, combined with an independent determination of y from planetary time delay, gives beta. Including the uncertainty due to compositional differences, the parameter beta differs from unity by no more than 0.0014; and, if the weak equivalence principle is satisfied, the difference is no more than 0.0006. (b) Geodetic precession matches its expected 19.2 marc sec/yr rate within 0.7%. This corresponds to a 1% test of gamma. (c) Apart from the Nordtvedt effect, beta and gamma can be tested from their influence on the lunar orbit. It is argued theoretically that the linear combination 0.8(beta) + 1.4(gamma) can be tested at the 1% level of accuracy. For solutions using numerically derived partial derivatives, higher sensitivity is found. Both 6 and y match the values of general relativity to within 0.005, and the linear combination beta+ gamma matches to within 0,003, but caution is advised due to the lack of theoretical understanding of these sensitivities. (d) No evidence for a changing gravitational constant is found, with absolute value of G/G less than or equal to 8 x lO(exp -12)/yr. There is significant sensitivity to G/G through solar perturbations on the lunar orbit.

  18. Infinite matter properties and zero-range limit of non-relativistic finite-range interactions

    Energy Technology Data Exchange (ETDEWEB)

    Davesne, D. [Université de Lyon, Université Lyon 1, CNRS/IN2P3, Institut de Physique Nucléaire de Lyon, UMR 5822, F-69622 Villeurbanne cedex (France); Becker, P., E-mail: pbecker@ipnl.in2p3.fr [Université de Lyon, Université Lyon 1, CNRS/IN2P3, Institut de Physique Nucléaire de Lyon, UMR 5822, F-69622 Villeurbanne cedex (France); Pastore, A. [Department of Physics, University of York, Heslington, York, Y010 5DD (United Kingdom); Navarro, J. [IFIC (CSIC-Universidad de Valencia), Apartado Postal 22085, E-46.071-Valencia (Spain)

    2016-12-15

    We discuss some infinite matter properties of two finite-range interactions widely used for nuclear structure calculations, namely Gogny and M3Y interactions. We show that some useful informations can be deduced for the central, tensor and spin–orbit terms from the spin–isospin channels and the partial wave decomposition of the symmetric nuclear matter equation of state. We show in particular that the central part of the Gogny interaction should benefit from the introduction of a third Gaussian and the tensor parameters of both interactions can be deduced from special combinations of partial waves. We also discuss the fact that the spin–orbit of the M3Y interaction is not compatible with local gauge invariance. Finally, we show that the zero-range limit of both families of interactions coincides with the specific form of the zero-range Skyrme interaction extended to higher momentum orders and we emphasize from this analogy its benefits.

  19. The cost-effectiveness of testing for hepatitis C in former injecting drug users.

    Science.gov (United States)

    Castelnuovo, E; Thompson-Coon, J; Pitt, M; Cramp, M; Siebert, U; Price, A; Stein, K

    2006-09-01

    To evaluate the effectiveness and cost-effectiveness of testing for hepatitis C (HCV) among former injecting drug users (IDUs). Electronic databases 1996-October 2004. Trent Regional Database Study. Routine UK mortality data. A decision analytic model was developed to investigate the impact of case-finding and treatment on progression of HCV disease in a hypothetical cohort of 1000 people. This was compared with a cohort in whom no systematic case-finding is implemented but spontaneous presentation for testing is allowed to occur. A group of epidemiological and clinical experts informed the structure of the model, which has three main components: (1) testing and diagnosis, (2) treatment, and (3) long-term consequences of infection. A fourth component, case-finding strategies, examines the potential impact of case-finding in three settings: prisons, general practice and drug services. Case-finding for HCV is likely to prevent, for 1000 people approached, three cases of decompensated cirrhosis, three deaths due to HCV and one case of hepatocellular cancer (at 30 years). Twenty-five additional people are likely to undergo combination therapy as a result of initial case-finding. One liver transplant is likely to be prevented for 10,000 people included in case-finding. Case-finding is likely to cost, in the general case, around pounds sterling 760,000 more than a policy of not case-finding. The total cost of either strategy is high and driven predominantly by the cost of treatment with combination therapy (the costs of long-term consequences are heavily discounted owing to the duration of the model). Systematically offering testing to 1000 people would cost around pounds sterling 70,000. In terms of life-years gained, case-finding is likely to result in an additional life-year gained for an investment of pounds sterling 20,084. Taking impacts on quality of life into account gives an estimate for the cost-utility of case-finding as pounds sterling 16,514 per QALY. The

  20. A study of the sensitivity of long-range passive ranging techniques to atmospheric scintillation

    CSIR Research Space (South Africa)

    De

    2012-04-01

    Full Text Available of the sensitivity of long-range passive ranging techniques to atmospheric scintillation Jason de Villiersa,b, Fintan Wilsona and Fred Nicollsb aCouncil for Scientific and Industrial Research, Pretoria, South Africa; bUniversity of Cape Town, Cape Town, South... and not scintillation and remove it from the list. 6. Interpolate between identified matches to create a complete de-warping mesh for the image. 7. Use de-warping mesh to create stabilised image. 6. RESULTS The resultant depth images in this paper are small in order...

  1. Predicting Long-Range Traversability from Short-Range Stereo-Derived Geometry

    Science.gov (United States)

    Turmon, Michael; Tang, Benyang; Howard, Andrew; Brjaracharya, Max

    2010-01-01

    Based only on its appearance in imagery, this program uses close-range 3D terrain analysis to produce training data sufficient to estimate the traversability of terrain beyond 3D sensing range. This approach is called learning from stereo (LFS). In effect, the software transfers knowledge from middle distances, where 3D geometry provides training cues, into the far field where only appearance is available. This is a viable approach because the same obstacle classes, and sometimes the same obstacles, are typically present in the mid-field and the farfield. Learning thus extends the effective look-ahead distance of the sensors.

  2. Active deformation offshore the Western Transverse Ranges

    Science.gov (United States)

    Ucarkus, G.; Driscoll, N. W.; Brothers, D. S.; Kent, G.; Rockwell, T. K.

    2014-12-01

    The Transverse Ranges within the structural province of southern California, an east-west trending active fold and thrust belt system, has rapid uplift rates that are capable of generating large earthquakes and tsunamis. This system to the west consists of north and south dipping reverse faults offshore Santa Barbara and Ventura (i.e., Pitas Point fault, Red Mountain fault, Rincon Creek fault). Ventura Avenue Anticline (VAA) is one of the fastest uplifting structure within this system has experienced nearly 2.7 km of structural uplift since fold initiation about 200-300 thousand years ago, yielding an average uplift rate of 9-13 mm/yr. Mapped and dated Holocene marine terraces between Ventura and Carpenteria reveal that large uplift events occurred at 0.8 ka and 1.9 ka; a recurrence interval of approximately a thousand years. The VAA trends offshore to the west and is buried by sediment from Rincon Creek. This sediment completely obscures the surficial expression of the fold between Rincon Point and Punta Gorda, indicating that Holocene sedimentation has kept pace with fold growth. Given the high sedimentation rate, each uplift event should be captured by stratigraphic rotation and onlap, and formation of angular unconformities. With that perspective, we acquired ~240 km-long very high-resolution (decimeter) CHIRP seismic reflection data from offshore Santa Barbara in the west to Ventura in the east, in order to examine discrete folding/uplift events that are preserved in the Holocene sediment record. CHIRP data together with re-processed USGS sparker profiles provide new constraints on timing and architecture of deformation offshore. A transgressive surface that dates back to ~9.5 kyr B.P is identified in seismic reflection data and dips landward; bending of the transgressive surface appears to be due to active folding and faulting. Observed onlapping sediments together with the deformation of the transgressive surface mark the onset of deformation while periods

  3. A general approach for cache-oblivious range reporting and approximate range counting

    DEFF Research Database (Denmark)

    Afshani, Peyman; Hamilton, Chris; Zeh, Norbert

    2010-01-01

    of points in the query range. As a corollary, we also obtain the first approximate 3-d halfspace range counting and 3-d dominance counting data structures with a worst-case query time of O(log(N/K)) in internal memory. An easy but important consequence of our main result is the existence of -space cache...... counting queries. This class includes three-sided range counting in the plane, 3-d dominance counting, and 3-d halfspace range counting. The constructed data structures use linear space and answer queries in the optimal query bound of O(logB(N/K)) block transfers in the worst case, where K is the number......-oblivious data structures with an optimal query bound of O(logBN+K/B) block transfers for the reporting versions of the above problems. Using standard reductions, these data structures allow us to obtain the first cache-oblivious data structures that use almost linear space and achieve the optimal query bound...

  4. Barium Titanate Nanoparticles: Short-range Lattice Distortions with Long-range Cubic Order

    Science.gov (United States)

    Haskell, Richard C.; Shi, Chenyang; Billinge, Simon J. L.; Puma, Eric; Bang, Sun Hwi; Bean, Nathaniel J. H.; de Sugny, Jean-Claude; Gambee, Robert G.; Hightower, Adrian; Monson, Todd C.

    Small barium titanate (BTO) nanoparticles (atomic pair distribution functions (PDFs). Fits to PDFs at temperatures of 20° to 220°C suggest that Ti atom displacements from the center of the unit cell are comparable to or even greater than those in the bulk material and persist at temperatures well above 120°C where the tetragonal to pseudo-cubic phase transition occurs in the bulk. Raman spectra acquired over a temperature range of 20° to 220°C confirm that small BTO nanoparticles exhibit a distorted unit cell even above 120°C. On the other hand, small BTO nanoparticles exhibit a long-range order consistent with a cubic lattice as recorded by laboratory XRD Bragg reflections at temperatures of 20° to 150°C. We have reconciled these seemingly contradictory data sets by fitting the PDFs over their full range of 6 nm to reveal a long-range structure with a reduced lattice distortion that still manages to support tetragonal Raman lines but is sufficiently close to cubic to yield apparent Bragg peak singlets. US DOE NNSA contract DE-AC04-94AL85000 and US DOE Office of Science contract DE-SC00112704.

  5. Environment Assessment for Grand Bay Range, Bemiss Field, and Moody Explosive Ordnance Disposal Range Operations

    Science.gov (United States)

    2013-06-01

    longleaf pine (Pinus palustris), and slash pine (Moody AFB 2007a). The Grand Bay Range impact area and Bemiss Field are managed to provide a Bahia ...Bemiss Field or immigration has occurred in this area. No confirmed sightings of indigo snakes have occurred since 1996, despite intensive monitoring

  6. Range-Image Acquisition for Discriminated Objects in a Range-gated Robot Vision System

    Energy Technology Data Exchange (ETDEWEB)

    Park, Seung-Kyu; Ahn, Yong-Jin; Park, Nak-Kyu; Baik, Sung-Hoon; Choi, Young-Soo; Jeong, Kyung-Min [KAERI, Daejeon (Korea, Republic of)

    2015-05-15

    The imaging capability of a surveillance vision system from harsh low-visibility environments such as in fire and detonation areas is a key function to monitor the safety of the facilities. 2D and range image data acquired from low-visibility environment are important data to assess the safety and prepare appropriate countermeasures. Passive vision systems, such as conventional camera and binocular stereo vision systems usually cannot acquire image information when the reflected light is highly scattered and absorbed by airborne particles such as fog. In addition, the image resolution captured through low-density airborne particles is decreased because the image is blurred and dimmed by the scattering, emission and absorption. Active vision systems, such as structured light vision and projected stereo vision are usually more robust for harsh environment than passive vision systems. However, the performance is considerably decreased in proportion to the density of the particles. The RGI system provides 2D and range image data from several RGI images and it moreover provides clear images from low-visibility fog and smoke environment by using the sum of time-sliced images. Nowadays, the Range-gated (RG) imaging is an emerging technology in the field of surveillance for security applications, especially in the visualization of invisible night and fog environment. Although RGI viewing was discovered in the 1960's, this technology is, nowadays becoming more applicable by virtue of the rapid development of optical and sensor technologies. Especially, this system can be adopted in robot-vision system by virtue of its compact portable configuration. In contrast to passive vision systems, this technology enables operation even in harsh environments like fog and smoke. During the past decades, several applications of this technology have been applied in target recognition and in harsh environments, such as fog, underwater vision. Also, this technology has been

  7. The Boulder Creek Batholith, Front Range, Colorado

    Science.gov (United States)

    Gable, Dolores J.

    1980-01-01

    The Boulder Creek batholith is the best known of several large Precambrian batholiths of similar rock composition that crop out across central Colorado. The rocks in the batholith belong to the calc-alkaline series and range in composition from granodiorite through quartz diorite (tonalite) to gneissic aplite. Two rock types dominate': the Boulder Creek Granodiorite, the major rock unit, and a more leucocratic and slightly younger unit herein named Twin Spruce Quartz Monzonite. Besides mafic inclusions, which occur mainly in hornblende-bearing phases of the Boulder Creek Granodiorite, there are cogenetic older and younger lenses, dikes, and small plutons of hornblende diorite, hornblendite, gabbro, and pyroxenite. Pyroxenite is not found in the batholith. The Boulder Creek Granodiorite in the batholith represents essentially two contemporaneous magmas, a northern body occurring in the Gold Hill and Boulder quadrangles and a larger southern body exposed in the Blackhawk and the greater parts of the Tungsten and Eldorado Springs quadrangles. The two bodies are chemically and mineralogically distinct. The northern body is richer in CaO and poorer in K2O, is more mafic, and has a larger percentage of plagioclase than the southern body. A crude sequence of rock types occurs from west to east in the batholith accompanied by a change in plagioclase composition from calcic plagioclase on the west to sodic on the east. Ore minerals tend to decrease, and the ratio potassium feldspar:plagioclase increases inward from the western contact of the batholith, indicating that the Boulder Creek batholith is similar to granodiorite batholiths the world over. Emplacement of the Boulder Creek batholith was contemporaneous with plastic deformation and high-grade regional metamorphism that folded the country rock and the batholith contact along west-northwest and north-northwest axes. Also, smaller satellitic granodiorite bodies tend to conform to the trends of foliation and fold axes in

  8. Lead exposure in indoor firing ranges: environmental impact and health risk to the range users.

    Science.gov (United States)

    Abudhaise, B A; Alzoubi, M A; Rabi, A Z; Alwash, R M

    1996-01-01

    Health risk from airborne lead exposure were evaluated in 54 trainees and 31 firearm instructors at two indoor firing ranges in Amman, Jordan. Airborne lead concentration was measured during shooting sessions of conventional lead ammunition. Venous blood was collected from the trainees, instructors and controls. The levels of blood lead (PbB) and the activity of amino levulinic acid dehydrogenase (ALAD) were measured. High concentrations of air lead that markedly exceeded the internationally adopted safe exposure levels were found on both ranges. Despite the absence of symptoms of lead poisoning, there was a significantly higher PbB in the instructors (19 +/- 7 micrograms/dl) and trainees (22.9 +/- 4.6 micrograms/dl) than in the controls (2.1 +/- 1.4 micrograms/dl). Furthermore, the activity of ALAD was significantly lower in both groups (29.2 +/- 1.3, 18.9 +/- 1.2 U/L, respectively) than in the controls (47.5 +/- 1.1 U/L) indicating a subcritical lead effect. In the trainees, levels of PbB rose from a pre-training mean of 2.2 to 22.9 micrograms/dl and the activity of ALAD decreased from 46.9 to 18.9 U/L. It is concluded that indoor firing range users are at risk of lead absorption and intoxication and, therefore, periodic biological monitoring of the frequent users of firing ranges is highly recommended. Environmental hygienic actions to control excessive emissions of lead on the ranges are also imperative.

  9. 50 CFR 30.1 - Surplus range animals.

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 6 2010-10-01 2010-10-01 false Surplus range animals. 30.1 Section 30.1... NATIONAL WILDLIFE REFUGE SYSTEM RANGE AND FERAL ANIMAL MANAGEMENT Range Animals § 30.1 Surplus range animals. Range animals on fenced wildlife refuge areas, including buffalo and longhorn cattle, determined...

  10. Current range of the eastern population of Painted Bunting (Passerina ciris). Part II: Winter range

    Science.gov (United States)

    Sykes, P.W.; Holzman, S.; Iñigo-Elias, Eduardo E.

    2007-01-01

    The importance of wintering areas for Neotropical migrants is well established. The wintering range of the eastern population of Painted Bunting (Passerina ciris) is described in detail and presented in maps. The paper also discusses extralimital records from islands in the Caribbean Basin as well as scattered wintering individuals outside the winter range. The possibility of eastern birds wintering on the Yucatan Peninsula and adjacent Central America is considered. An extensive treatment of the protected areas of Peninsular Florida, the northern Bahamas, and Cuba describes the importance of upland habitats within these protected areas for wintering buntings. This information should be useful to land management agencies, conservation organizations, and private landholders for the welfare of the bunting and biodiversity in general and may also be of interest to ornithologists, other biological disciplines, naturalists, and birders.

  11. Self-welding evaluation of type 304 and A286 stainless steel in the temperature range 800/sup 0/-1140/sup 0/F in flowing sodium

    Energy Technology Data Exchange (ETDEWEB)

    Chang, J.Y.; Flagella, P.N.; Schrock, S.L.

    1976-01-01

    This paper covers two material combinations, Type 304 SS vs Type 304 SS and Type 304 SS vs A286, tested at temperatures from 800 to 1140/sup 0/F for time periods up to six months in flowing sodium. Contact stresses ranged from 2 to 30 ksi on contact areas for 0.63 to 1.00 in./sup 2/. Tests were performed in either tensile or shear modes on the flat-on-flat samples. Surface morphologies of the sample before and after the test were presented. Self-welding of Type 304 SS was significant at temperatures above 1080/sup 0/F while no self-welding was detected at 800/sup 0/F. Sliding friction coefficient (..mu..) data for a Type 304 SS couple at 800/sup 0/F under compressive stresses from 2000 to 30,000 psi in sodium could be correlated quite accurately by W/sigma = 0.08e/sup 9..mu../, where W is the waviness height in microinches and sigma is the compressive stress in kilo-pound per square inch. One self-weld couple of Type 304 SS/Type 304 SS exposed at 1080/sup 0/F for 3 months was not separated but rather removed intact from the test apparatus and examined in cross-section. Scanning electron micrographs of the contacted area revealed that portions of the original interface were no longer discernible. (auth)

  12. A national range inventory for the Kingdom of Lesotho. | Martin ...

    African Journals Online (AJOL)

    Keywords: classification; Colour aerial photography; Ecological sites; ecology; inventory; lesotho; management; management plan; mapping; National range inventories; photo interpretation; photography; plant communities; Plant community relationships; range; range management; rangeland; rangelands; remote sensing; ...

  13. Minimum Entropy Autofocus Correction of Residual Range Cell Migration

    Science.gov (United States)

    2017-03-02

    Minimum Entropy Autofocus Correction of Residual Range Cell Migration Joshua M. Kantor Abstract—In this article we present a SAR autofocus algorithm...residual range shift, or operate by cross correlating range profiles to estimate residual range migration . These approaches are quite effective in many...range migration by cross-correlating range profiles can be difficult when the single pulse SNR is low and the scene does not have prominent point-like

  14. Factors affecting the range of movement of total knee arthroplasty

    National Research Council Canada - National Science Library

    Harvey, I A; Barry, K; Kirby, S P; Johnson, R; Elloy, M A

    1993-01-01

    We have investigated those factors which influence the range of movement after total knee arthroplasty, including sex, age, preoperative diagnosis and preoperative flexion deformity and flexion range...

  15. Unexploded Ordnance Site Investigation of US Military Ranges in Panama: Empire, Balboa West and Pina Ranges

    Science.gov (United States)

    1998-07-01

    Process, UXO Detection Technologies, and Detector Reference Area. Table 1-1 UXO Site Investigation Report Components Aiko ik ogai6Componehp - Sect"on Site...200.0 C2 Suspect impact area of Range 6 09 97 482 17 645 592 929.9 D FP- 11 Firing Fan 0995639 17648673 369.0 E FP-15 Firing Fan 0997194 17645735 326.5 K ...bulldozer was brought in to grade and level the area. The transect was surveyed with a hand held EM61 locator starting off the K -6 road about 1.000

  16. Orthogonal Range Searching in Moderate Dimensions: k-d Trees and Range Trees Strike Back

    OpenAIRE

    Chan, Timothy M.

    2017-01-01

    We revisit the orthogonal range searching problem and the exact l_infinity nearest neighbor searching problem for a static set of n points when the dimension d is moderately large. We give the first data structure with near linear space that achieves truly sublinear query time when the dimension is any constant multiple of log n. Specifically, the preprocessing time and space are O(n^{1+delta}) for any constant delta>0, and the expected query time is n^{1-1/O(c log c)} for d = c log n. The ...

  17. 50 CFR 30.2 - Disposition of surplus range animals.

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 6 2010-10-01 2010-10-01 false Disposition of surplus range animals. 30.2... (CONTINUED) THE NATIONAL WILDLIFE REFUGE SYSTEM RANGE AND FERAL ANIMAL MANAGEMENT Range Animals § 30.2 Disposition of surplus range animals. Disposition shall be made only during regularly scheduled disposal...

  18. Sound propagation from a semi-open shooting range

    NARCIS (Netherlands)

    Eerden, F.J.M. van der; Berg, F. van den

    2011-01-01

    Semi-open shooting ranges, in contrast to a fully open shooting range, are often used in the densely populated area of the Netherlands. The Ministry of Defense operates a number of these ranges. In these shooting ranges above the line of fire a number of screens are situated for safety precautions

  19. 25 CFR 700.721 - Range management plans.

    Science.gov (United States)

    2010-04-01

    ... 25 Indians 2 2010-04-01 2010-04-01 false Range management plans. 700.721 Section 700.721 Indians... Lands Grazing § 700.721 Range management plans. The Commissioner (or his designee) and the permittees of each range unit will meet as a group and develop a Range Management Plan for the common use of the...

  20. 25 CFR 161.203 - Are range management plans required?

    Science.gov (United States)

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Are range management plans required? 161.203 Section 161... LANDS GRAZING PERMITS General Provisions § 161.203 Are range management plans required? Yes. BIA will... range restoration activities for the Navajo Partitioned Lands. (b) Develop range management plans with...

  1. Climate change, aboveground-belowground interactions, and species range shifts

    NARCIS (Netherlands)

    Putten, van der W.H.

    2012-01-01

    Changes in climate, land use, fire incidence, and ecological connections all may contribute to current species' range shifts. Species shift range individually, and not all species shift range at the same time and rate. This variation causes community reorganization in both the old and new ranges. In

  2. Surviving "Payment by Results": a simple method of improving clinical coding in burn specialised services in the United Kingdom.

    Science.gov (United States)

    Wallis, Katy L; Malic, Claudia C; Littlewood, Sonia L; Judkins, Keith; Phipps, Alan R

    2009-03-01

    Coding inpatient episodes plays an important role in determining the financial remuneration of a clinical service. Insufficient or incomplete data may have very significant consequences on its viability. We created a document that improves the coding process in our Burns Centre. At Yorkshire Regional Burns Centre an inpatient summary sheet was designed to prospectively record and present essential information on a daily basis, for use in the coding process. The level of care was also recorded. A 3-month audit was conducted to assess the efficacy of the new forms. Forty-nine patients were admitted to the Burns Centre with a mean age of 27.6 years and TBSA ranging from 0.5% to 65%. The total stay in the Burns Centre was 758 days, of which 22% were at level B3-B5 and 39% at level B2. The use of the new discharge document identified potential income of about 500,000 GB pound sterling at our local daily tariffs for high dependency and intensive care. The new form is able to ensure a high quality of coding with a possible direct impact on the financial resources accrued for burn care.

  3. Data resources for range-wide assessment of livestock grazing across the sagebrush biome

    Science.gov (United States)

    Assal, T.J.; Veblen, K.E.; Farinha, M.A.; Aldridge, C.L.; Casazza, Michael L.; Pyke, D.A.

    2012-01-01

    The data contained in this series were compiled, modified, and analyzed for the U.S. Geological Survey (USGS) report "Range-Wide Assessment of Livestock Grazing Across the Sagebrush Biome." This report can be accessed through the USGS Publications Warehouse (online linkage: http://pubs.usgs.gov/of/2011/1263/). The dataset contains spatial and tabular data related to Bureau of Land Management (BLM) Grazing Allotments. We reviewed the BLM national grazing allotment spatial dataset available from the GeoCommunicator National Integrated Land System (NILS) website in 2007 (http://www.geocommunicator.gov). We identified several limitations in those data and learned that some BLM State and/or field offices had updated their spatial data to rectify these limitations, but maintained the data outside of NILS. We contacted appropriate BLM offices (State or field, 25 in all) to obtain the most recent data, assessed the data, established a data development protocol, and compiled data into a topologically enforced dataset throughout the area of interest for this project (that is, the pre-settlement distribution of Greater Sage-Grouse in the Western United States). The final database includes three spatial datasets: Allotments (BLM Grazing Allotments), OUT_Polygons (nonallotment polygons used to ensure topology), and Duplicate_Polygon_Allotments. See Appendix 1 of the aforementioned report for complete methods. The tabular data presented here consists of information synthesized by the Land Health Standard (LHS) analysis (Appendix 2), and data obtained from the BLM Rangeland Administration System (http://www.blm.gov/ras/). In 2008, available LHS data for all allotments in all regions were compiled by BLM in response to a Freedom of Information Act (FOIA) request made by a private organization. The BLM provided us with a copy of these data. These data provided three major types of information that were of interest: (1) date(s) (if any) of the most recent LHS evaluation for each

  4. ISAR imaging using the instantaneous range instantaneous Doppler method

    CSIR Research Space (South Africa)

    Wazna, TM

    2015-10-01

    Full Text Available In Inverse Synthetic Aperture Radar (ISAR) imaging, the Range Instantaneous Doppler (RID) method is used to compensate for the nonuniform rotational motion of the target that degrades the Doppler resolution of the ISAR image. The Instantaneous Range...

  5. High-Range Scalar Helium Magnetometer (HSHM) Project

    Data.gov (United States)

    National Aeronautics and Space Administration — This SBIR Phase I proposal describes development of a conceptual design for a High-range Scalar Helium Magnetometer (HSHM) for the field range +/-16 Gauss. The HSHM...

  6. 128 EVALUATION OF RANGE CONDITION AND TREND OF ...

    African Journals Online (AJOL)

    2010-03-01

    . Email-mrmbaya@gmail.com GSM-08057884935 ... Range condition is used as a guide to ensure sustainable land use; to determine ... Range trend assessments depend upon evaluation of the general health of individual.

  7. Tonopah test range - outpost of Sandia National Laboratories

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, L.

    1996-03-01

    Tonopah Test Range is a unique historic site. Established in 1957 by Sandia Corporation, Tonopah Test Range in Nevada provided an isolated place for the Atomic Energy Commission to test ballistics and non-nuclear features of atomic weapons. It served this and allied purposes well for nearly forty years, contributing immeasurably to a peaceful conclusion to the long arms race remembered as the Cold War. This report is a brief review of historical highlights at Tonopah Test Range. Sandia`s Los Lunas, Salton Sea, Kauai, and Edgewood testing ranges also receive abridged mention. Although Sandia`s test ranges are the subject, the central focus is on the people who managed and operated the range. Comments from historical figures are interspersed through the narrative to establish this perspective, and at the end a few observations concerning the range`s future are provided.

  8. The History of the Naval Torpedo Tracking Ranges at Keyport

    Science.gov (United States)

    1998-08-01

    1961, negotiations were begun with Canada for the installation and joint operation of an acoustic range near Ballenas Island, in the Strait of Georgia...After several exploratory trips were made to Ballenas and Winchelsea Islands, construction of the range, based on the low frequency 75 kHz tracking...The array cables were temporarily terminated at a trailer on South Ballenas Island that contained the range tracking computer and served as a range

  9. Common Risk Criteria Standards for National Test Ranges

    Science.gov (United States)

    2017-09-01

    process among the ranges; b. Promote valid, repeatable risk assessments; c. Facilitate innovation to support challenging missions; d. Nurture...with operational requirements. Range flight operations typically involve some level of risk. Therefore, an important aspect of the range safety...accurate, repeatable risk assessments by minimizing errors in estimating and ensuring their scientific validity; c. Facilitate innovation to support

  10. Home range location of white-tailed deer.

    Science.gov (United States)

    Michael E. Nelson

    1979-01-01

    Deer migrations and home range traditions indicated that home range location is determined more by early social experience, learning, and tradition than by an innate ability to select the best habitat. Different deer preferred the same or similar habitat but such selection was a secondary influence on home range location.

  11. Lead pollution of shooting range soils | Sehube | South African ...

    African Journals Online (AJOL)

    Atotal of eight military shooting ranges were used for this study. Soil samples were collected at each of the eight shooting ranges at the berm, target line, 50 and 100 m from berm. In all of the shooting ranges investigated the highest total lead (Pb) concentrations were found in the bermsoils. Elevated Pb concentrations of 38 ...

  12. 5 CFR 9701.372 - Creating initial pay ranges.

    Science.gov (United States)

    2010-01-01

    ... 5 Administrative Personnel 3 2010-01-01 2010-01-01 false Creating initial pay ranges. 9701.372... HUMAN RESOURCES MANAGEMENT SYSTEM Pay and Pay Administration Transitional Provisions § 9701.372 Creating initial pay ranges. (a) DHS must, after coordination with OPM, set the initial band rate ranges for the...

  13. Mountain range specific analog weather forecast model for ...

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Earth System Science; Volume 117; Issue 5. Mountain range specific ... Mountain range specific analog weather forecast model is developed utilizing surface weather observations of reference stations in each mountain range in northwest Himalaya (NW-Himalaya).The model searches past ...

  14. Cow and calf weight trends on mountain summer range.

    Science.gov (United States)

    Jon M. Skovlin

    1962-01-01

    Mountain range furnishes the bulk of summer forage for commercial cow-calf operations in northeastern Oregon. Herds maintained on valley range and pasture during winter and spring months are annually trailed to mountain ranges and remain there until calves are ready for fall markets (fig. 1).

  15. Parasite host range and the evolution of host resistance

    NARCIS (Netherlands)

    Gorter, F.A.; Hall, A.R.; A., Buckling; P.D., Scanlan

    2015-01-01

    Parasite host range plays a pivotal role in the evolution and ecology of hosts
    and the emergence of infectious disease. Although the factors that promote
    host range and the epidemiological consequences of variation in host range
    are relatively well characterized, the effect of parasite

  16. 76 FR 63656 - Front Range Resource Advisory Council Meeting Cancellation

    Science.gov (United States)

    2011-10-13

    ...] Front Range Resource Advisory Council Meeting Cancellation AGENCY: Bureau of Land Management, Interior... Front Range Resource Advisory Council meeting scheduled for October 19, 2011 at the BLM Royal Gorge....m. to 4:30 p.m. FOR FURTHER INFORMATION CONTACT: Tina Brown, Front Range RAC Coordinator, BLM...

  17. 36 CFR 222.10 - Range betterment fund.

    Science.gov (United States)

    2010-07-01

    ... allocated for range rehabilitation, protection and improvements on National Forest lands within the Forest... also be accomplished through use of the range betterment fund as follows: (a) On National Forest land... 36 Parks, Forests, and Public Property 2 2010-07-01 2010-07-01 false Range betterment fund. 222.10...

  18. The Role of Data Range in Linear Regression

    Science.gov (United States)

    da Silva, M. A. Salgueiro; Seixas, T. M.

    2017-01-01

    Measuring one physical quantity as a function of another often requires making some choices prior to the measurement process. Two of these choices are: the data range where measurements should focus and the number (n) of data points to acquire in the chosen data range. Here, we consider data range as the interval of variation of the independent…

  19. 50 CFR 70.8 - Range and feral animal management.

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 6 2010-10-01 2010-10-01 false Range and feral animal management. 70.8... (CONTINUED) MANAGEMENT OF FISHERIES CONSERVATION AREAS NATIONAL FISH HATCHERIES § 70.8 Range and feral animal management. The range and feral animal management provisions set forth in part 30 of this chapter are equally...

  20. Rank range test for equality of dispersion | Odiase | Journal of ...

    African Journals Online (AJOL)

    This paper exploits the computational simplicity of the range of a set of data to formulate a twosample scale test called the Rank Range test. The performance of the test statistic is compared with other tests of scale. The exact distribution of the Rank Range test statistic is generated empirically through the unconditional ...

  1. Cultural resources of the Santa Rita Experimental Range

    Science.gov (United States)

    John H. Madsen

    2003-01-01

    The Santa Rita Experimental Range is a vast open space with few signs of houses or human habitation, but at one time it was quite the opposite scene. Archaeological surface inspections reveal heavy use of the Range dating back hundreds of years. This paper will review the history of cultural resource management on the Range and provide a timeline of local cultural...

  2. Tonopah Test Range Post-Closure Inspection Annual Report, Tonopah Test Range, Nevada, Calendar Year 2002

    Energy Technology Data Exchange (ETDEWEB)

    R. B. Jackson

    2003-08-01

    This Post-Closure Inspection Annual Report provides documentation of the semiannual inspections conducted at the following Corrective Action Units (CAU)s: CAU 400: Bomblet Pit and Five Points Landfill; CAU 404: Roller Coaster Lagoons and Trench; CAU 407: Roller Coaster RadSafe Area; CAU 424: Area 3 Landfill Complexes; CAU 426: Cactus Spring Waste Trenches; CAU 427: Septic Waste Systems 2, 6; and CAU 453: Area 9 UXO Landfill, all located at the Tonopah Test Range, Nevada. Post-closure inspections are not required at CAU 400 but are conducted to monitor vegetation and fencing at the site. Site inspections were conducted in May and November 2002. All site inspections were made after Nevada Division of Environmental Protection (NDEP) approval of the appropriate Closure Report (CR), excluding CAU 400 which did not require a CR, and were conducted in accordance with the Post-Closure Inspection Plans in the NDEP-approved CRs. Post-closure inspections conducted during 2002 identified several areas requiring maintenance/repairs. Maintenance work and proposed additional monitoring are included in the appropriate section for each CAU. This report includes copies of the Post-Closure Inspection Plans, Post-Closure Inspection Checklists, copies of the field notes, photographs, and the Post-Closure Vegetative Monitoring Report. The Post-Closure Inspection Plan for each CAU is located in Attachment A. Post-Closure Inspection Checklists are in Attachment B. Copies of the field notes from each inspection are included in Attachment C. Attachment D consists of the photographic logs and photographs of the sites. The post-closure vegetative monitoring report for calendar year 2002 is included in Attachment E.

  3. Start-Stop Moment Optimization of Range Extender and Control Strategy Design for Extended -Range Electric Vehicle

    Science.gov (United States)

    Zhao, Jing-bo; Han, Bing-yuan; Bei, Shao-yi

    2017-10-01

    Range extender is the core component of E-REV, its start-stop control determines the operation modes of vehicle. This paper based on a certain type of E-REV, researched constant power control strategy of range extender in extended-range model, to target range as constraint condition, combined with different driving cycle conditions, by correcting battery SOC for range extender start-stop moment, optimized the control strategy of range extender, and established the vehicle and range extender start-stop control simulation model. Selected NEDC and UDDS conditions simulation results show that: under certain target mileage, the range extender running time reduced by 37.2% and 28.2% in the NEDC condition, and running time UDDS conditions were reduced by 40.6% and 33.5% in the UDDS condition, reached the purpose of meeting the vehicle mileage and reducing consumption and emission.

  4. Long-range correlation and market segmentation in bond market

    Science.gov (United States)

    Wang, Zhongxing; Yan, Yan; Chen, Xiaosong

    2017-09-01

    This paper investigates the long-range auto-correlations and cross-correlations in bond market. Based on Detrended Moving Average (DMA) method, empirical results present a clear evidence of long-range persistence that exists in one year scale. The degree of long-range correlation related to maturities has an upward tendency with a peak in short term. These findings confirm the expectations of fractal market hypothesis (FMH). Furthermore, we have developed a method based on a complex network to study the long-range cross-correlation structure and applied it to our data, and found a clear pattern of market segmentation in the long run. We also detected the nature of long-range correlation in the sub-period 2007-2012 and 2011-2016. The result from our research shows that long-range auto-correlations are decreasing in the recent years while long-range cross-correlations are strengthening.

  5. Target Image Matching Algorithm Based on Binocular CCD Ranging

    Directory of Open Access Journals (Sweden)

    Dongming Li

    2014-01-01

    Full Text Available This paper proposed target image in a subpixel level matching algorithm for binocular CCD ranging, which is based on the principle of binocular CCD ranging. In the paper, firstly, we introduced the ranging principle of the binocular ranging system and deduced a binocular parallax formula. Secondly, we deduced the algorithm which was named improved cross-correlation matching algorithm and cubic surface fitting algorithm for target images matched, and it could achieve a subpixel level matching for binocular CCD ranging images. Lastly, through experiment we have analyzed and verified the actual CCD ranging images, then analyzed the errors of the experimental results and corrected the formula of calculating system errors. Experimental results showed that the actual measurement accuracy of a target within 3 km was higher than 0.52%, which meet the accuracy requirements of the high precision binocular ranging.

  6. On Dynamic Range Limitations of CMOS Current Conveyors

    DEFF Research Database (Denmark)

    Bruun, Erik

    1999-01-01

    This paper is concerned with the dynamic range of continuous time CMOS current mode circuits. As a representative current mode device a class AB current conveyor is examined. First, the voltage input range of the high impedance Y input is investigated. Next, the current input range of the low...... impedance X input is investigated. It is compared to the thermal noise in the X to Z signal path in order to evaluate the dynamic range, and the dependencies of the dynamic range on the supply voltage and the transistor lay-out is derived, both for the situation where the conveyor is used over a narrow...... frequency band and for the situation where the conveyor is used over the full bandwidth achievable. Finally, the optimisation of the current input range is related to the distortion characteristics and it is pointed out that to a first order approximation the distortion is independent of the current range....

  7. Geographical range and local abundance of tree species in China.

    Directory of Open Access Journals (Sweden)

    Haibao Ren

    Full Text Available Most studies on the geographical distribution of species have utilized a few well-known taxa in Europe and North America, with little research in China and its wide range of climate and forest types. We assembled large datasets to quantify the geographic ranges of tree species in China and to test several biogeographic hypotheses: 1 whether locally abundant species tend to be geographically widespread; 2 whether species are more abundant towards their range-centers; and 3 how abundances are correlated between sites. Local abundances of 651 species were derived from four tree plots of 20-25 ha where all individuals ≥1 cm in stem diameter were mapped and identified taxonomically. Range sizes of these species across China were then estimated from over 460,000 geo-referenced records; a Bayesian approach was used, allowing careful measures of error of each range estimate. The log-transformed range sizes had a bell-shaped distribution with a median of 703,000 km(2, and >90% of 651 species had ranges >10(5 km(2. There was no relationship between local abundance and range size, and no evidence for species being more abundant towards their range-centers. Finally, species' abundances were positively correlated between sites. The widespread nature of most tree species in China suggests few are vulnerable to global extinction, and there is no indication of the double-peril that would result if rare species also had narrow ranges.

  8. Effects of sample size on KERNEL home range estimates

    Science.gov (United States)

    Seaman, D.E.; Millspaugh, J.J.; Kernohan, Brian J.; Brundige, Gary C.; Raedeke, Kenneth J.; Gitzen, Robert A.

    1999-01-01

    Kernel methods for estimating home range are being used increasingly in wildlife research, but the effect of sample size on their accuracy is not known. We used computer simulations of 10-200 points/home range and compared accuracy of home range estimates produced by fixed and adaptive kernels with the reference (REF) and least-squares cross-validation (LSCV) methods for determining the amount of smoothing. Simulated home ranges varied from simple to complex shapes created by mixing bivariate normal distributions. We used the size of the 95% home range area and the relative mean squared error of the surface fit to assess the accuracy of the kernel home range estimates. For both measures, the bias and variance approached an asymptote at about 50 observations/home range. The fixed kernel with smoothing selected by LSCV provided the least-biased estimates of the 95% home range area. All kernel methods produced similar surface fit for most simulations, but the fixed kernel with LSCV had the lowest frequency and magnitude of very poor estimates. We reviewed 101 papers published in The Journal of Wildlife Management (JWM) between 1980 and 1997 that estimated animal home ranges. A minority of these papers used nonparametric utilization distribution (UD) estimators, and most did not adequately report sample sizes. We recommend that home range studies using kernel estimates use LSCV to determine the amount of smoothing, obtain a minimum of 30 observations per animal (but preferably a?Y50), and report sample sizes in published results.

  9. Evolution of density-dependent movement during experimental range expansions.

    Science.gov (United States)

    Fronhofer, E A; Gut, S; Altermatt, F

    2017-12-01

    Range expansions and biological invasions are prime examples of transient processes that are likely impacted by rapid evolutionary changes. As a spatial process, range expansions are driven by dispersal and movement behaviour. Although it is widely accepted that dispersal and movement may be context-dependent, for instance density-dependent, and best represented by reaction norms, the evolution of density-dependent movement during range expansions has received little experimental attention. We therefore tested current theory predicting the evolution of increased movement at low densities at range margins using highly replicated and controlled range expansion experiments across multiple genotypes of the protist model system Tetrahymena thermophila. Although rare, we found evolutionary changes during range expansions even in the absence of initial standing genetic variation. Range expansions led to the evolution of negatively density-dependent movement at range margins. In addition, we report the evolution of increased intrastrain competitive ability and concurrently decreased population growth rates in range cores. Our findings highlight the importance of understanding movement and dispersal as evolving reaction norms and plastic life-history traits of central relevance for range expansions, biological invasions and the dynamics of spatially structured systems in general. © 2017 European Society For Evolutionary Biology. Journal of Evolutionary Biology © 2017 European Society For Evolutionary Biology.

  10. Firing Range Contaminants and Climate Change Tool: Spreadsheet User Instructions

    Science.gov (United States)

    2017-09-18

    ER D C S R- 17 -4 Firing Range Contaminants and Climate Change Tool Spreadsheet User Instructions En gi ne er R es ea rc h an d...SR-17-4 September 2017 Firing Range Contaminants and Climate Change Tool Spreadsheet User Instructions Catherine Fox-Lent, Dayton C. Marchese...can now use the tool and this instructional guide as an aid to long-term range planning in the face of climate changes . DISCLAIMER: The contents

  11. Building accurate geometric models from abundant range imaging information

    Science.gov (United States)

    Diegert, Carl F.; Sackos, John T.; Nellums, Robert O.

    1997-08-01

    We define two simple metrics for accuracy of models built from range imaging information. We apply the metric to a model built from a recent range image taken at the laser radar Development and Evaluation Facility, Eglin AFB, using a scannerless range imager (SRI) from Sandia National Laboratories. We also present graphical displays of the residual information produced as a byproduct of this measurement, and discuss mechanisms that these data suggest for further improvement in the performance of this already impressive SRI.

  12. Passive Wireless Temperature Sensors with Enhanced Sensitivity and Range Project

    Data.gov (United States)

    National Aeronautics and Space Administration — This proposal describes the development of passive surface acoustic wave (SAW) temperature sensors with enhanced sensitivity and detection range for NASA application...

  13. Modulation of neuronal dynamic range using two different adaptation mechanisms

    Science.gov (United States)

    Wang, Lei; Wang, Ye; Fu, Wen-long; Cao, Li-hong

    2017-01-01

    The capability of neurons to discriminate between intensity of external stimulus is measured by its dynamic range. A larger dynamic range indicates a greater probability of neuronal survival. In this study, the potential roles of adaptation mechanisms (ion currents) in modulating neuronal dynamic range were numerically investigated. Based on the adaptive exponential integrate-and-fire model, which includes two different adaptation mechanisms, i.e. subthreshold and suprathreshold (spike-triggered) adaptation, our results reveal that the two adaptation mechanisms exhibit rather different roles in regulating neuronal dynamic range. Specifically, subthreshold adaptation acts as a negative factor that observably decreases the neuronal dynamic range, while suprathreshold adaptation has little influence on the neuronal dynamic range. Moreover, when stochastic noise was introduced into the adaptation mechanisms, the dynamic range was apparently enhanced, regardless of what state the neuron was in, e.g. adaptive or non-adaptive. Our model results suggested that the neuronal dynamic range can be differentially modulated by different adaptation mechanisms. Additionally, noise was a non-ignorable factor, which could effectively modulate the neuronal dynamic range. PMID:28469660

  14. Sierra Nevada Yellow-legged Frog Range - CWHR [ds592

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  15. Double-crested Cormorant Range - CWHR [ds602

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  16. Foothill Yellow-legged Frog Range - CWHR [ds589

    Data.gov (United States)

    California Department of Resources — Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for...

  17. Middle Range Theory: A Perspective on Development and Use.

    Science.gov (United States)

    Liehr, Patricia; Smith, Mary Jane

    This replication and critique addresses ongoing development and use of middle range theory since considering this body of nursing knowledge 18 years ago. Middle range theory is appreciated as essential to the structure of nursing knowledge. Nine middle range theories that demonstrate ongoing use by the theory authors are analyzed using the criteria of theory name, theory generation, disciplinary perspective, theory model, practice use and research use. Critique conclusions indicate the importance of staying with the theory over time, naming and development consistent with the disciplinary perspective, movement to an empirical level, and bringing middle range theory to the interdisciplinary table.

  18. Monitoring vegetation conditions from LANDSAT for use in range management

    Science.gov (United States)

    Haas, R. H.; Deering, D. W.; Rouse, J. W., Jr.; Schell, J. A.

    1975-01-01

    A summary of the LANDSAT Great Plains Corridor projects and the principal results are presented. Emphasis is given to the use of satellite acquired phenological data for range management and agri-business activities. A convenient method of reducing LANDSAT MSS data to provide quantitative estimates of green biomass on rangelands in the Great Plains is explained. Suggestions for the use of this approach for evaluating range feed conditions are presented. A LANDSAT Follow-on project has been initiated which will employ the green biomass estimation method in a quasi-operational monitoring of range readiness and range feed conditions on a regional scale.

  19. A trunk ranging system based on binocular stereo vision

    Science.gov (United States)

    Zhao, Xixuan; Kan, Jiangming

    2017-07-01

    Trunk ranging is an essential function for autonomous forestry robots. Traditional trunk ranging systems based on personal computers are not convenient in practical application. This paper examines the implementation of a trunk ranging system based on the binocular vision theory via TI's DaVinc DM37x system. The system is smaller and more reliable than that implemented using a personal computer. It calculates the three-dimensional information from the images acquired by binocular cameras, producing the targeting and ranging results. The experimental results show that the measurement error is small and the system design is feasible for autonomous forestry robots.

  20. BOLD subjective value signals exhibit robust range adaptation.

    Science.gov (United States)

    Cox, Karin M; Kable, Joseph W

    2014-12-03

    Many theories of decision making assume that choice options are assessed along a common subjective value (SV) scale. The neural correlates of SV are widespread and reliable, despite the wide variation in the range of values over which decisions are made (e.g., between goods worth a few dollars, in some cases, or hundreds of dollars, in others). According to adaptive coding theories (Barlow, 1961), an efficient value signal should exhibit range adaptation, such that neural activity maintains a fixed dynamic range, and the slope of the value response varies inversely with the range of values within the local context. Although monkey data have demonstrated range adaptation in single-unit correlates of value (Padoa-Schioppa, 2009; Kobayashi et al., 2010), whether BOLD value signals exhibit similar range adaptation is unknown. To test for this possibility, we presented human participants with choices between a fixed immediate and variable delayed payment options. Across two conditions, the delayed options' SVs spanned either a narrow or wide range. SV-tracking activity emerged in the posterior cingulate, ventral striatum, anterior cingulate, and ventromedial prefrontal cortex. Throughout this network, we observed evidence consistent with the predictions of range adaptation: the SV response slope increased in the narrow versus wide range, with statistically significant slope changes confirmed for the posterior cingulate and ventral striatum. No regions exhibited a reliably increased BOLD activity range in the wide versus narrow condition. Our observations of range adaptation present implications for the interpretation of BOLD SV responses that are measured across different contexts or individuals. Copyright © 2014 the authors 0270-6474/14/3316533-11$15.00/0.

  1. Reference Ranges for Some Biochemical Parameters in Adult ...

    African Journals Online (AJOL)

    PURPOSE: To establish the reference ranges of some biochemical parameters for adult Kenyan population. METHODS: In a prospective involving 1100 healthy blood donors (age: 18-55 yr) in Kenyatta National Hospital, Kenya reference ranges of some biochemical analytes were constructed by using the parametric ...

  2. Nanoimprinted Long-range Surface Plasmon Polariton Waveguide Components

    DEFF Research Database (Denmark)

    Johansen, Dan Mario; Boltasseva, A.; Nielsen, Theodor

    2006-01-01

    We report on the fabrication by nanoimprint lithography (NIL) and performance of metal stripe waveguides embedded in a polymer, capable of supporting long-range surface plasmon polariton (LRSPP) propagation.......We report on the fabrication by nanoimprint lithography (NIL) and performance of metal stripe waveguides embedded in a polymer, capable of supporting long-range surface plasmon polariton (LRSPP) propagation....

  3. Photonic bandgap structures for long-range surface plasmon polaritons

    DEFF Research Database (Denmark)

    Bozhevolnyi, Sergey I.; Boltasseva, Alexandra; Søndergaard, Thomas

    2005-01-01

    Propagation of long-range surface plasmon polaritons (LR-SPPs) along periodically thickness-modulated metal stripes embedded in dielectric is studied both theoretically and experimentally for light wavelengths in the telecom range. We demonstrate that symmetric (with respect to the film surface) nm...... of achieving a full bandgap (in the surface plane) for LR-SPPs are also discussed....

  4. The Geologic Story of Colorado's Sangre de Cristo Range

    Science.gov (United States)

    Lindsey, David A.

    2010-01-01

    There is no record of the beginning of time in the Sangre de Cristo Range. Almost 3 billion years of Earth history are missing, but the rest is on spectacular display in this rugged mountain landscape. This is the geologic story of the Sangre de Cristo Range.

  5. Evolutionary responses to climate change in a range expanding plant

    NARCIS (Netherlands)

    Macel, Mirka; Dostálek, Tomás; Esch, Sonja; Bucharová, Anna; van Dam, Nicole M.; Tielbörger, Katja; Verhoeven, Koen J. F.; Münzbergová, Zuzana

    2017-01-01

    To understand the biological effects of climate change, it is essential to take into account species' evolutionary responses to their changing environments. Ongoing climate change is resulting in species shifting their geographical distribution ranges poleward. We tested whether a successful range

  6. Modelling the effect of climate change on species ranges

    NARCIS (Netherlands)

    Nagelkerke, C.J.; Alkemade, J.R.M.

    2003-01-01

    Three main types of models can be used to understand and predict climate-related range shifts. Equilibrium models predict potential future distributions from the current climate envelope of a species, but do not take migration constraints into account. They show that future range changes can be

  7. Effects of GPS sampling intensity on home range analyses

    Science.gov (United States)

    Jeffrey J. Kolodzinski; Lawrence V. Tannenbaum; David A. Osborn; Mark C. Conner; W. Mark Ford; Karl V. Miller

    2010-01-01

    The two most common methods for determining home ranges, minimum convex polygon (MCP) and kernel analyses, can be affected by sampling intensity. Despite prior research, it remains unclear how high-intensity sampling regimes affect home range estimations. We used datasets from 14 GPS-collared, white-tailed deer (Odocoileus virginianus) to describe...

  8. Quantum correlations in a long range interaction spin chain

    Science.gov (United States)

    Li, Bo; Wang, Yan-Shen

    2012-01-01

    We propose a new type of long range interaction spin chain. The quantum correlations such as quantum discord, entanglement, and structure factor are investigated in the thermal state with considering them both in zero temperature and finite temperature. Based on our results, we compare the differences and show the relations between the three types of quantum correlations in this long range interaction model.

  9. Long-range interactions in dilute granular systems

    NARCIS (Netherlands)

    Müller, M.K

    2008-01-01

    In this thesis, on purpose, we focussed on the most challenging, longest ranging potentials. We analyzed granular media of low densities obeying 1/r long-range interaction potentials between the granules. Such systems are termed granular gases and differ in their behavior from ordinary gases by

  10. Common Plants of Longleaf Pine-Bluestem Range

    Science.gov (United States)

    Harold E. Grelen; Vinson L. Duvall

    1966-01-01

    This publication describes many grasses, grasslike plants, forbs, and shrubs that inhabit longleaf pine-bluestem range. The species vary widely in importance; most produce forage palatable to cattle, some are noxious weeds, and others are valuable indicators of trends in range condition. All are abundant enough on certain sites, however, to require identification for...

  11. Patterns of endemicity and range restriction among southern African ...

    African Journals Online (AJOL)

    Although the distribution and overall species-richness patterns of several component taxa are well documented, studies considering range sizes are absent. This study considers range size frequencies and distribution patterns of seven major marine invertebrate taxa. The most commonly observed pattern of size frequency ...

  12. Infinite range correlations of intensity in random media

    Indian Academy of Sciences (India)

    Infinite range correlations of intensity in random media. A RETZKER and B SHAPIRO. Department of Physics, Technion-Israel Institute of Technology, Haifa 32000, Israel. Abstract. We study a new type of long-range correlations for waves propagating in a random medium. These correlations originate from scattering events ...

  13. Infinite range correlations of intensity in random media

    Indian Academy of Sciences (India)

    We study a new type of long-range correlations for waves propagating in a random medium. These correlations originate from scattering events which take place close to a point source. The scattered waves propagate by diffusion to distant regions. In this way long range correlations, between any pair of distant points, are ...

  14. 33 CFR 159.115 - Temperature range test.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Temperature range test. 159.115...) POLLUTION MARINE SANITATION DEVICES Design, Construction, and Testing § 159.115 Temperature range test. (a) The device must be held at a temperature of 60 °C or higher for a period of 16 hours. (b) The device...

  15. Managing interior Northwest rangelands: the Oregon Range Evaluation Project.

    Science.gov (United States)

    Thomas M. Quigley; H. Reed Sanderson; Arthur R. Tiedemann

    1989-01-01

    This report is a synthesis of results from an 11-year study of the effects of increasing intensities of range management strategies on herbage production, water resources, economics, and associated resources-such as wood fiber and recreation-in Grant County, Oregon. Four intensities of management were studied on Federal land (19 grazing allotments) ranging from no...

  16. In-Vivo High Dynamic Range Vector Flow Imaging

    DEFF Research Database (Denmark)

    Villagómez Hoyos, Carlos Armando; Stuart, Matthias Bo; Jensen, Jørgen Arendt

    2015-01-01

    Current vector flow systems are limited in their detectable range of blood flow velocities. Previous work on phantoms has shown that the velocity range can be extended using synthetic aperture directional beamforming combined with an adaptive multi-lag approach. This paper presents a first invivo...

  17. On-line battery identification for electric driving range prediction

    NARCIS (Netherlands)

    Kessels, J.T.B.A.; Rosca, B.; Bergveld, H.J.; Bosch, P.P.J. van den

    2011-01-01

    Hybrid and electric vehicles require accurate knowledge of the battery to make an educated guess about the expected electric driving range. Range prediction is complicated by the fact that batteries are subject to external influences and aging. Also the future driving behavior is often unknown. This

  18. Effect of visible range electromagnetic radiations on Escherichia coli ...

    African Journals Online (AJOL)

    Background: Escherichia coli is the agent responsible for a range of clinical diseases. With emerging antimicrobial resistance, other treatment options including solar/photo-therapy are becoming increasingly common. Visible Range Radiation Therapy/Colour Therapy is an emerging technique in the field of ...

  19. Correlation between passive and dynamic range of rotation in lead ...

    African Journals Online (AJOL)

    ... between the passive hip range of movement and dynamic hip range during the golf swing of the trail hip. Clinicians and coaches should thus note that improving passive hip ROM might not be associated with an increased hip rotation utilised during the golf swing. Key words: Lower limb rotation; Golf swing biomechanics; ...

  20. Directional couplers using long-range surface plasmon polariton waveguides

    DEFF Research Database (Denmark)

    Boltasseva, Alexandra; Bozhevolnyi, Sergey I.

    2006-01-01

    We present an experimental study of guiding and routing of electromagnetic radiation along the nanometer-thin and micrometer-wide gold stripes embedded in a polymer via excitation of long-range surface plasmon polaritons (LR-SPPs) in a very broad wavelength range from 1000 to 1650 mn. For straight...

  1. 42 CFR 1008.59 - Range of the advisory opinion.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 5 2010-10-01 2010-10-01 false Range of the advisory opinion. 1008.59 Section 1008... AUTHORITIES ADVISORY OPINIONS BY THE OIG Scope and Effect of OIG Advisory Opinions § 1008.59 Range of the advisory opinion. (a) An advisory opinion will state only the OIG's opinion regarding the subject matter of...

  2. Water chemistry of Rocky Mountain Front Range aquatic ecosystems

    Science.gov (United States)

    Robert C. Musselman; Laura Hudnell; Mark W. Williams; Richard A. Sommerfeld

    1996-01-01

    A study of the water chemistry of Colorado Rocky Mountain Front Range alpine/subalpine lakes and streams in wilderness ecosystems was conducted during the summer of 1995 by the USDA Forest Service Arapaho and Roosevelt National Forests and Rocky Mountain Forest and Range Experiment Station, and the University of Colorado Institute of Alpine and Arctic Research. Data...

  3. Detection Range of Airborne Magnetometers in Magnetic Anomaly Detection

    Directory of Open Access Journals (Sweden)

    Chengjing Li

    2015-11-01

    Full Text Available Airborne magnetometers are utilized for the small-range search, precise positioning, and identification of the ferromagnetic properties of underwater targets. As an important performance parameter of sensors, the detection range of airborne magnetometers is commonly set as a fixed value in references regardless of the influences of environment noise, target magnetic properties, and platform features in a classical model to detect airborne magnetic anomalies. As a consequence, deviation in detection ability analysis is observed. In this study, a novel detection range model is proposed on the basis of classic detection range models of airborne magnetometers. In this model, probability distribution is applied, and the magnetic properties of targets and the environment noise properties of a moving submarine are considered. The detection range model is also constructed by considering the distribution of the moving submarine during detection. A cell-averaging greatest-of-constant false alarm rate test method is also used to calculate the detection range of the model at a desired false alarm rate. The detection range model is then used to establish typical submarine search probabilistic models. Results show that the model can be used to evaluate not only the effects of ambient magnetic noise but also the moving and geomagnetic features of the target and airborne detection platform. The model can also be utilized to display the actual operating range of sensor systems.

  4. Estimating range of influence in case of missing spatial data

    DEFF Research Database (Denmark)

    Bihrmann, Kristine; Ersbøll, Annette Kjær

    2015-01-01

    the estimated range of influence is affected when 1) the outcome is only observed at some of a given set of locations, and 2) multiple imputation is used to impute the outcome at the non-observed locations. METHODS: The study was based on the simulation of missing outcomes in a complete data set. The range...

  5. Desirable forest structures for a restored Front Range

    Science.gov (United States)

    Yvette L. Dickinson; Rob Addington; Greg Aplet; Mike Babler; Mike Battaglia; Peter Brown; Tony Cheng; Casey Cooley; Dick Edwards; Jonas Feinstein; Paula Fornwalt; Hal Gibbs; Megan Matonis; Kristen Pelz; Claudia Regan

    2014-01-01

    As part of the federal Collaborative Forest Landscape Restoration Program administered by the US Forest Service, the Colorado Front Range Collaborative Forest Landscape Restoration Project (FR-CFLRP, a collaborative effort of the Front Range Roundtable1 and the US Forest Service) is required to define desired conditions for lower montane ponderosa pine (Pinus ponderosa...

  6. The Ranges Of Subauroral Geomagnetic Field Elements | Rabiu ...

    African Journals Online (AJOL)

    Nigeria Journal of Pure and Applied Physics ... On quiet condition, the range in j season dominates over d- and e- seasons in all elements. ... Generally, the seasonal range in the D component for all the years as well as in H and Z components - apart from the anomaly - maintain the order e>j>d of seasonal variation which is ...

  7. Efficient external memory structures for range-aggregate queries

    DEFF Research Database (Denmark)

    Agarwal, P.K.; Yang, J.; Arge, L.

    2013-01-01

    We present external memory data structures for efficiently answering range-aggregate queries. The range-aggregate problem is defined as follows: Given a set of weighted points in Rd, compute the aggregate of the weights of the points that lie inside a d-dimensional orthogonal query rectangle. The...

  8. Editorial Greater international exposure for African range and forage ...

    African Journals Online (AJOL)

    Password, Remember me, or Register. DOWNLOAD FULL TEXT Open Access DOWNLOAD FULL TEXT Subscription or Fee Access. Editorial Greater international exposure for African range and forage science. Susi Vetter. Abstract. Click on the link to view the editorial. African Journal of Range & Forage Science 2009, ...

  9. Epidemiological reference ranges for low-density lipoprotein ...

    African Journals Online (AJOL)

    Although there is widespread acceptance that total cholesterol (TC) value reference ranges should be based on epidemiological rather than statistical considerations, the epidemiological action limits for Iow-density lipoprotein cholesterol (LDL-C) are still incomplete and only statistical reference ranges for apolipoprotein B ...

  10. Local participation, equity, and popular support in Lesotho's Range ...

    African Journals Online (AJOL)

    The Range Management Area (RMA) programme was implemented in 1982 to improve range condition and livestock management productivity on Lesotho's rangelands by mobilizing collective management of communal grazing areas. Active local participation in management initiatives, equitable distribution of costs and ...

  11. A Range-Based Multivariate Model for Exchange Rate Volatility

    NARCIS (Netherlands)

    B. Tims (Ben); R.J. Mahieu (Ronald)

    2003-01-01

    textabstractIn this paper we present a parsimonious multivariate model for exchange rate volatilities based on logarithmic high-low ranges of daily exchange rates. The multivariate stochastic volatility model divides the log range of each exchange rate into two independent latent factors, which are

  12. Range management research, Fort Valley Experimental Forest (P-53)

    Science.gov (United States)

    Henry A. Pearson; Warren P. Clary; Margaret M. Moore; Carolyn Hull Sieg

    2008-01-01

    Range management research at the Fort Valley Experimental Forest during the past 100 years has provided scientific knowledge for managing ponderosa pine forests and forest-range grazing lands in the Southwest. Three research timeperiods are identified: 1908 to 1950, 1950 to 1978, and 1978 to 2008. Early research (1908-1950) addressed ecological effects of livestock...

  13. The Standley allotment: a history of range recovery.

    Science.gov (United States)

    Gerald S. Strickler; Wade B. Hall

    1980-01-01

    One of the first range research programs on National Forest lands was conducted by Dr. Arthur W. Sampson in the Wallowa Mountains, Oregon, between 1907 and 1911. This paper reviews the historical perspective of and the basic range management principles and practices developed from Sampson's studies as well as the land and grazing management of the study area to...

  14. Cross-Linguistic Differences in Bilinguals' Fundamental Frequency Ranges

    Science.gov (United States)

    Ordin, Mikhail; Mennen, Ineke

    2017-01-01

    Purpose: We investigated cross-linguistic differences in fundamental frequency range (FFR) in Welsh-English bilingual speech. This is the first study that reports gender-specific behavior in switching FFRs across languages in bilingual speech. Method: FFR was conceptualized as a behavioral pattern using measures of span (range of fundamental…

  15. Full Range Advising: Transforming the Advisor-Advisee Experience

    Science.gov (United States)

    Barbuto, John E., Jr.; Story, Joana S.; Fritz, Susan M.; Schinstock, Jack L.

    2011-01-01

    Drawing from the leadership literature, a new model for advising is proposed. Full range advising encompasses laissez-faire, management by exception, contingent rewards, and transformational behaviors. The relationships between full range advising and advisees' extra effort, satisfaction with the advisor, and advising effectiveness were examined.…

  16. Range Information Systems Management (RISM) Phase 1 Report

    Science.gov (United States)

    Bastin, Gary L.; Harris, William G.; Nelson, Richard A.

    2002-01-01

    RISM investigated alternative approaches, technologies, and communication network architectures to facilitate building the Spaceports and Ranges of the future. RISM started by document most existing US ranges and their capabilities. In parallel, RISM obtained inputs from the following: 1) NASA and NASA-contractor engineers and managers, and; 2) Aerospace leaders from Government, Academia, and Industry, participating through the Space Based Range Distributed System Working Group (SBRDSWG), many of whom are also; 3) Members of the Advanced Range Technology Working Group (ARTWG) subgroups, and; 4) Members of the Advanced Spaceport Technology Working Group (ASTWG). These diverse inputs helped to envision advanced technologies for implementing future Ranges and Range systems that builds on today s cabled and wireless legacy infrastructures while seamlessly integrating both today s emerging and tomorrow s building-block communication techniques. The fundamental key is to envision a transition to a Space Based Range Distributed Subsystem. The enabling concept is to identify the specific needs of Range users that can be solved through applying emerging communication tech

  17. Normal range MMPI-A profiles among psychiatric inpatients.

    Science.gov (United States)

    Hilts, Darolyn; Moore, James M

    2003-09-01

    The present study examined the base rates of normal range Minnesota Multiphasic Personality Inventory-Adolescent (MMPI-A) profiles in an inpatient sample and examined the differences between adolescents with apparently valid normal range profiles (all clinical scale T-scores MMPI-A validity scale scores and other indexes of underreporting. Normal range profiles cannot be adequately explained by a less pathological history prior to hospitalization or by defensiveness. Thirty percent of male and 25% of female adolescents produced valid MMPI-A profiles in which none of the clinical scales were elevated. Both male and female adolescents with normal range profiles were generally less likely to report internalizing symptoms than those with elevated profiles, but both groups report externalizing symptoms. Neither the standard MMPI-A validity scales nor additional validity scales discriminated between profile groups. Clinicians should not assume that normal range profiles indicate an absence of problems.

  18. Discrete filtering techniques applied to sequential GPS range measurements

    Science.gov (United States)

    Vangraas, Frank

    1987-01-01

    The basic navigation solution is described for position and velocity based on range and delta range (Doppler) measurements from NAVSTAR Global Positioning System satellites. The application of discrete filtering techniques is examined to reduce the white noise distortions on the sequential range measurements. A second order (position and velocity states) Kalman filter is implemented to obtain smoothed estimates of range by filtering the dynamics of the signal from each satellite separately. Test results using a simulated GPS receiver show a steady-state noise reduction, the input noise variance divided by the output noise variance, of a factor of four. Recommendations for further noise reduction based on higher order Kalman filters or additional delta range measurements are included.

  19. Geographical ranges in macroecology: Processes, patterns and implications

    DEFF Research Database (Denmark)

    Borregaard, Michael Krabbe

    , are distributed over the entire Earth. Species’ ranges are one of the basic units of the science of macroecology, which deals with patterns in the distribution of life on Earth. An example of such patterns is the large geographic variation in species richness between areas. These patterns are closely linked......, I draw upon a wide range of approaches, including statistical comparative analysis, computer simulations and null models. The core of the thesis is constituted by five independent scientific articles. These chapters fall naturally within two thematic groups: The first group consists of articles...... that investigate how ecology and evolution determine species’ ranges. The central paper in this group is a large review article about one of the best described patterns in ecology: That species with large ranges tend to also be very locally abundant within their range. In the article I review the potential causes...

  20. Challenges in miniaturized automotive long-range lidar system design

    Science.gov (United States)

    Fersch, Thomas; Weigel, Robert; Koelpin, Alexander

    2017-05-01

    This paper discusses the current technical limitations posed on endeavors to miniaturize lidar systems for use in automotive applications and how to possibly extend those limits. The focus is set on long-range scanning direct time of flight LiDAR systems using APD photodetectors. Miniaturization evokes severe problems in ensuring absolute laser safety while maintaining the systems' performance in terms of maximum range, signal-to-noise ratio, detection probability, pixel density, or frame rate. Based on hypothetical but realistic specifications for an exemplary system the complete lidar signal path is calculated. The maximum range of the system is used as a general performance indicator. It is determined with the minimum signal-to-noise ratio required to detect an object. Various system parameters are varied to find their impact on the system's range. The reduction of the laser's pulse width and the right choice for the transimpedance amplifier's amplification have shown to be practicable measures to double the system's range.

  1. Degeneracy and long-range correlation: A simulation study

    Directory of Open Access Journals (Sweden)

    Marmelat Vivien

    2011-12-01

    Full Text Available We present in this paper a simulation study that aimed at evidencing a causal relationship between degeneracy and long-range correlations. Long-range correlations represent a very specific form of fluctuations that have been evidenced in the outcomes time series produced by a number of natural systems. Long-range correlations are supposed to sign the complexity, adaptability and flexibility of the system. Degeneracy is defined as the ability of elements that are structurally different to perform the same function, and is presented as a key feature for explaining the robustness of complex systems. We propose a model able to generate long-range correlated series, and including a parameter that account for degeneracy. Results show that a decrease in degeneracy tends to reduce the strength of long-range correlation in the series produced by the model.

  2. Adaptive long-range migration promotes cooperation under tempting conditions.

    Science.gov (United States)

    Ichinose, Genki; Saito, Masaya; Sayama, Hiroki; Wilson, David Sloan

    2013-01-01

    Migration is a fundamental trait in humans and animals. Recent studies investigated the effect of migration on the evolution of cooperation, showing that contingent migration favors cooperation in spatial structures. In those studies, only local migration to immediate neighbors was considered, while long-range migration has not been considered yet, partly because the long-range migration has been generally regarded as harmful for cooperation as it would bring the population to a well-mixed state that favors defection. Here, we studied the effects of adaptive long-range migration on the evolution of cooperation through agent-based simulations of a spatial Prisoner's Dilemma game where individuals can jump to a farther site if they are surrounded by more defectors. Our results show that adaptive long-range migration strongly promotes cooperation, especially under conditions where the temptation to defect is considerably high. These findings demonstrate the significance of adaptive long-range migration for the evolution of cooperation.

  3. Chiral Topological Superconductors Enhanced by Long-Range Interactions

    Science.gov (United States)

    Viyuela, Oscar; Fu, Liang; Martin-Delgado, Miguel Angel

    2018-01-01

    We study the phase diagram and edge states of a two-dimensional p -wave superconductor with long-range hopping and pairing amplitudes. New topological phases and quasiparticles different from the usual short-range model are obtained. When both hopping and pairing terms decay with the same exponent, one of the topological chiral phases with propagating Majorana edge states gets significantly enhanced by long-range couplings. On the other hand, when the long-range pairing amplitude decays more slowly than the hopping, we discover new topological phases where propagating Majorana fermions at each edge pair nonlocally and become gapped even in the thermodynamic limit. Remarkably, these nonlocal edge states are still robust, remain separated from the bulk, and are localized at both edges at the same time. The inclusion of long-range effects is potentially applicable to recent experiments with magnetic impurities and islands in 2D superconductors.

  4. Analysis of FDML lasers with meter range coherence

    Science.gov (United States)

    Pfeiffer, Tom; Draxinger, Wolfgang; Wieser, Wolfgang; Klein, Thomas; Petermann, Markus; Huber, Robert

    2017-02-01

    FDML lasers provide sweep rates in the MHz range at wide optical bandwidths, making them ideal sources for high speed OCT. Recently, at lower speed, ultralong-range swept-source OCT has been demonstrated using a tunable vertical cavity surface emitting laser (VCSEL) and also using a Vernier-tunable laser. These sources provide relatively high sweep rates and meter range coherence lengths. In order to achieve similar coherence, we developed an extremely well dispersion compensated Fourier Domain Mode Locked (FDML) laser, running at 3.2 MHz sweep rate and 120 nm spectral bandwidth. We demonstrate that this laser offers meter range coherence and enables volumetric long range OCT of moving objects.

  5. Geographic range size and extinction risk assessment in nomadic species.

    Science.gov (United States)

    Runge, Claire A; Tulloch, Ayesha; Hammill, Edd; Possingham, Hugh P; Fuller, Richard A

    2015-06-01

    Geographic range size is often conceptualized as a fixed attribute of a species and treated as such for the purposes of quantification of extinction risk; species occupying smaller geographic ranges are assumed to have a higher risk of extinction, all else being equal. However many species are mobile, and their movements range from relatively predictable to-and-fro migrations to complex irregular movements shown by nomadic species. These movements can lead to substantial temporary expansion and contraction of geographic ranges, potentially to levels which may pose an extinction risk. By linking occurrence data with environmental conditions at the time of observations of nomadic species, we modeled the dynamic distributions of 43 arid-zone nomadic bird species across the Australian continent for each month over 11 years and calculated minimum range size and extent of fluctuation in geographic range size from these models. There was enormous variability in predicted spatial distribution over time; 10 species varied in estimated geographic range size by more than an order of magnitude, and 2 species varied by >2 orders of magnitude. During times of poor environmental conditions, several species not currently classified as globally threatened contracted their ranges to very small areas, despite their normally large geographic range size. This finding raises questions about the adequacy of conventional assessments of extinction risk based on static geographic range size (e.g., IUCN Red Listing). Climate change is predicted to affect the pattern of resource fluctuations across much of the southern hemisphere, where nomadism is the dominant form of animal movement, so it is critical we begin to understand the consequences of this for accurate threat assessment of nomadic species. Our approach provides a tool for discovering spatial dynamics in highly mobile species and can be used to unlock valuable information for improved extinction risk assessment and conservation

  6. Outdoor stocking density in free-range laying hens: radio-frequency identification of impacts on range use.

    Science.gov (United States)

    Campbell, D L M; Hinch, G N; Dyall, T R; Warin, L; Little, B A; Lee, C

    2017-01-01

    The number and size of free-range laying hen (Gallus gallus domesticus) production systems are increasing within Australia in response to consumer demand for perceived improvement in hen welfare. However, variation in outdoor stocking density has generated consumer dissatisfaction leading to the development of a national information standard on free-range egg labelling by the Australian Consumer Affairs Ministers. The current Australian Model Code of Practice for Domestic Poultry states a guideline of 1500 hens/ha, but no maximum density is set. Radio-frequency identification (RFID) tracking technology was used to measure daily range usage by individual ISA Brown hens housed in six small flocks (150 hens/flock - 50% of hens tagged), each with access to one of three outdoor stocking density treatments (two replicates per treatment: 2000, 10 000, 20 000 hens/ha), from 22 to 26, 27 to 31 and 32 to 36 weeks of age. There was some variation in range usage across the sampling periods and by weeks 32 to 36 individual hens from the lowest stocking density on average used the range for longer each day (Paccessed the range with 2% of tagged hens in each treatment never venturing outdoors and a large proportion that accessed the range daily (2000 hens/ha: 80.5%; 10 000 hens/ha: 66.5%; 20 000 hens/ha: 71.4%). On average, 38% to 48% of hens were seen on the range simultaneously and used all available areas of all ranges. These results of experimental-sized flocks have implications for determining optimal outdoor stocking densities for commercial free-range laying hens but further research would be needed to determine the effects of increased range usage on hen welfare.

  7. Global patterns of geographic range size in birds.

    Directory of Open Access Journals (Sweden)

    C David L Orme

    2006-07-01

    Full Text Available Large-scale patterns of spatial variation in species geographic range size are central to many fundamental questions in macroecology and conservation biology. However, the global nature of these patterns has remained contentious, since previous studies have been geographically restricted and/or based on small taxonomic groups. Here, using a database on the breeding distributions of birds, we report the first (to our knowledge global maps of variation in species range sizes for an entire taxonomic class. We show that range area does not follow a simple latitudinal pattern. Instead, the smallest range areas are attained on islands, in mountainous areas, and largely in the southern hemisphere. In contrast, bird species richness peaks around the equator, and towards higher latitudes. Despite these profoundly different latitudinal patterns, spatially explicit models reveal a weak tendency for areas with high species richness to house species with significantly smaller median range area. Taken together, these results show that for birds many spatial patterns in range size described in geographically restricted analyses do not reflect global rules. It remains to be discovered whether global patterns in geographic range size are best interpreted in terms of geographical variation in species assemblage packing, or in the rates of speciation, extinction, and dispersal that ultimately underlie biodiversity.

  8. Quaternary climate change and the geographic ranges of mammals.

    Science.gov (United States)

    Davies, T Jonathan; Purvis, Andy; Gittleman, John L

    2009-09-01

    A species' range can be a proxy for its ecological well-being. Species with small and shrinking range distributions are particularly vulnerable to extinction. Future climate change scenarios are predicted to affect species' geographical extents, but data on how species' distributions respond to changing climate are largely anecdotal, and our understanding of the determinants and limits to species geographic ranges is surprisingly poor. Here we show that mammal species in more historically variable environments have larger geographical ranges. However, the relationship between range size and long-term climate trends cannot be explained by variation in our estimates of habitat specificity. We suggest that large oscillations in Quaternary temperatures may have shaped the contemporary distribution of range sizes via the selective extirpation of small-ranged species during glacial expansion and/or recolonization by good dispersers after glacial retreats. The effect of current climate change on species' distributions and extinctions may therefore be determined by the geographical coincidence between historical and future climate scenarios, the "mesh size" of the extinction/dispersal filter imposed by past climate change, and whether similar ecological and evolutionary responses to historical climatic change are appropriate in an increasingly transformed and fragmented landscape.

  9. The Role of Data Range in Linear Regression

    Science.gov (United States)

    da Silva, M. A. Salgueiro; Seixas, T. M.

    2017-09-01

    Measuring one physical quantity as a function of another often requires making some choices prior to the measurement process. Two of these choices are: the data range where measurements should focus and the number (n) of data points to acquire in the chosen data range. Here, we consider data range as the interval of variation of the independent variable (x) that is associated with a given interval of variation of the dependent variable (y). We analyzed the role of the width and lower endpoint of measurement data range on parameter estimation by linear regression. We show that, when feasible, increasing data range width is more effective than increasing the number of data points on the same data range in reducing the uncertainty in the slope of a regression line. Moreover, the uncertainty in the intercept of a regression line depends not only on the number of data points but also on the ratio between the lower endpoint and the width of the measurement data range, reaching its minimum when the dataset is centered at the ordinate axis. Since successful measurement methodologies require a good understanding of factors ruling data analysis, it is pedagogically justified and highly recommended to teach these two subjects alongside each other.

  10. Fixed time versus fixed range reverberation calculation: analytical solution.

    Science.gov (United States)

    Harrison, Chris H; Ainslie, Michael A

    2010-07-01

    Reverberation is commonly calculated by estimating the propagation loss to and from an elementary area, defined by transmitted pulse length and beam width, and treating the resulting backscatter from the area as a function of its range. In reality reverberation is strictly a function of time and contributions for a given time come from many ranges. Closed-form solutions are given for reverberation calculated both at fixed range and at fixed time isovelocity water and some variants of Lambert's law and linear reflection loss with an abrupt critical angle. These are derived by considering the shape of the two-way scattered multipath pulse envelope from a point scatterer. The ratio of these two solutions is shown to depend on the dominant propagation angle spread for the particular range or time. The ratio is largest at intermediate ranges (though typically less than 1 dB) and depends explicitly on the critical angle. At longer ranges mode-stripping reduces the propagation angle spread and the ratio reduces ultimately to unity. At short range the ratio is also close to unity although interpreting it requires care.

  11. Range and Battery Depletion Concerns with Electric Vehicles

    Directory of Open Access Journals (Sweden)

    Tomio Miwa

    2017-01-01

    Full Text Available This study investigates the effects of the range of a battery electric vehicle (EV by using questionnaire data. The concern about battery depletion changes according to charging station deployment. Firstly, the methodology for deriving the probabilistic distribution of the daily travel distance is developed, which enables us to analyze people’s tolerance of the risk of battery depletion. Secondly, the desired range of an EV is modeled. This model considers the effect of changing charging station deployment and can analyze the variation in the desired range. Then, the intention of a household to purchase an EV is analyzed by incorporating range-related variables. The results show that people can live with a risk of battery depletion of around 2% to 5%. The deployment of charging stations at large retail facilities and/or workplace parking spaces reduces the desired range of an EV. Finally, the answers to the questionnaire show that the probability of battery depletion on a driving day has little effect on the intention to purchase an EV. Instead, people tend to evaluate the range by itself or directly compare it with their desired range.

  12. Fusing range measurements from ultrasonic beacons and a laser range finder for localization of a mobile robot.

    Science.gov (United States)

    Ko, Nak Yong; Kuc, Tae-Yong

    2015-05-11

    This paper proposes a method for mobile robot localization in a partially unknown indoor environment. The method fuses two types of range measurements: the range from the robot to the beacons measured by ultrasonic sensors and the range from the robot to the walls surrounding the robot measured by a laser range finder (LRF). For the fusion, the unscented Kalman filter (UKF) is utilized. Because finding the Jacobian matrix is not feasible for range measurement using an LRF, UKF has an advantage in this situation over the extended KF. The locations of the beacons and range data from the beacons are available, whereas the correspondence of the range data to the beacon is not given. Therefore, the proposed method also deals with the problem of data association to determine which beacon corresponds to the given range data. The proposed approach is evaluated using different sets of design parameter values and is compared with the method that uses only an LRF or ultrasonic beacons. Comparative analysis shows that even though ultrasonic beacons are sparsely populated, have a large error and have a slow update rate, they improve the localization performance when fused with the LRF measurement. In addition, proper adjustment of the UKF design parameters is crucial for full utilization of the UKF approach for sensor fusion. This study contributes to the derivation of a UKF-based design methodology to fuse two exteroceptive measurements that are complementary to each other in localization.

  13. Long-range alpha/beta and short-range gamma EEG synchronization distinguishes phasic and tonic REM periods.

    Science.gov (United States)

    Simor, Péter; Gombos, Ferenc; Blaskovich, Borbála; Bódizs, Róbert

    2017-12-23

    Rapid Eye Movement (REM) sleep is characterized by the alternation of two markedly different microstates, phasic and tonic REM. These periods differ in awakening and arousal thresholds, sensory processing, and spontaneous cortical oscillations. Previous studies indicate that whereas in phasic REM, cortical activity is independent of the external environment, attentional functions and sensory processing are partially maintained during tonic periods. Large-scale synchronization of oscillatory activity, especially in the alpha and beta frequency ranges can accurately distinguish different states of vigilance and cognitive processes of enhanced alertness and attention. Therefore, we examined long-range inter-and intrahemispheric, as well as short-range EEG synchronization during phasic and tonic REM periods quantified by the weighted phase lag index. Based on the nocturnal polysomnographic data of 19 healthy, adult participants we showed that long-range inter-and intrahemispheric alpha and beta synchrony were enhanced in tonic REM states in contrast to phasic ones, and resembled alpha and beta synchronization of resting wakefulness. On the other hand, short-range synchronization within the gamma frequency range was higher in phasic as compared to tonic periods. Increased short-range synchrony might reflect local, and inwardly driven sensorimotor activity during phasic REM periods, whereas enhanced long-range synchrony might index frontoparietal activity that reinstates environmental alertness after phasic REM periods. © Sleep Research Society 2017. Published by Oxford University Press on behalf of the Sleep Research Society. All rights reserved. For permissions, please e-mail journals.permissions@oup.com.

  14. Recognizing history in range ecology: 100 years of science and management on the Santa Rita Experimental Range

    Science.gov (United States)

    Nathan F. Sayre

    2003-01-01

    At the centennial of the Santa Rita Experimental Range, historical analysis is called for on two levels. First, as a major site in the history of range ecology, the Santa Rita illuminates past successes and failures in science and management and the ways in which larger social, economic, and political factors have shaped scientific research. Second, with the turn away...

  15. Optical bistability of graphene in the terahertz range

    DEFF Research Database (Denmark)

    Peres, N. M. R.; Bludov, Yu V.; Santos, Jaime E.

    2014-01-01

    We use an exact solution of the relaxation-time Boltzmann equation in a uniform ac electric field to describe the nonlinear optical response of graphene in the terahertz (THz) range. The cases of monolayer, bilayer, and ABA-stacked trilayer graphene are considered, and the monolayer species...... is shown to be the most appropriate one to exploit the nonlinear free electron response. We find that a single layer of graphene shows optical bistability in the THz range, within the electromagnetic power range attainable in practice. The current associated with the third harmonic generation is also...

  16. Development (design and systematization) of HMS Group pump ranges

    Science.gov (United States)

    Tverdokhleb, I.; Yamburenko, V.

    2017-08-01

    The article reveals the need for pump range charts development for different applications and describes main principles used by HMS Group. Some modern approaches to pump selection are reviewed and highlighted the need for pump compliance with international standards and modern customer requirements. Even though pump design types are similar for different applications they need adjustment to specific requirements, which gets manufacturers develop their particular design for each pump range. Having wide pump ranges for different applications enables to create pump selection software, facilitating manufacturers to prepare high quality quotations in shortest time.

  17. Perceptual effects of dynamic range compression in popular music recordings

    DEFF Research Database (Denmark)

    Hjortkjær, Jens; Walther-Hansen, Mads

    2014-01-01

    The belief that the use of dynamic range compression in music mastering deteriorates sound quality needs to be formally tested. In this study normal hearing listeners were asked to evaluate popular music recordings in original versions and in remastered versions with higher levels of dynamic range...... compression. Surprisingly, the results failed to reveal any evidence of the effects of dynamic range compression on subjective preference or perceived depth cues. Perceptual data suggest that listeners are less sensitive than commonly believed to even high levels of compression. As measured in terms...

  18. Short range order in elemental liquids of column IV.

    Science.gov (United States)

    Mayo, M; Shor, S; Yahel, E; Makov, G

    2015-05-21

    The short range order (SRO) in liquid elements of column IV is analysed within the quasi-crystalline model across a wide range of temperatures. It is found that l-Si, Ge, and Sn are well described with a beta-tin like SRO. In contrast, Pb retains a bcc-like SRO similar to other simple elemental liquids. However, a distinction is found between the SRO in Si and Ge and that in Sn, where the latter has a more rigid structure. This difference persists across the entire temperature range examined but is overcome in Si at pressures above 8 GPa, where the liquid structure evolves towards that of Sn.

  19. Geographic range size and determinants of avian species richness

    DEFF Research Database (Denmark)

    Jetz, Walter; Rahbek, Carsten

    2002-01-01

    Geographic patterns in species richness are mainly based on wide-ranging species because their larger number of distribution records has a disproportionate contribution to the species richness counts. Here we demonstrate how this effect strongly influences our understanding of what determines...... species richness. Using both conventional and spatial regression models, we show that for sub-Saharan African birds, the apparent role of productivity diminishes with decreasing range size, whereas the significance of topographic heterogeneity increases. The relative importance of geometric constraints...... from the continental edge is moderate. Our findings highlight the failure of traditional species richness models to account for narrow-ranging species that frequently are also threatened....

  20. Lead exposure at firing ranges-a review.

    Science.gov (United States)

    Laidlaw, Mark A S; Filippelli, Gabriel; Mielke, Howard; Gulson, Brian; Ball, Andrew S

    2017-04-04

    Lead (Pb) is a toxic substance with well-known, multiple, long-term, adverse health outcomes. Shooting guns at firing ranges is an occupational necessity for security personnel, police officers, members of the military, and increasingly a recreational activity by the public. In the United States alone, an estimated 16,000-18,000 firing ranges exist. Discharge of Pb dust and gases is a consequence of shooting guns. The objectives of this study are to review the literature on blood lead levels (BLLs) and potential adverse health effects associated with the shooting population. The search terms "blood lead", "lead poisoning", "lead exposure", "marksmen", "firearms", "shooting", "guns", "rifles" and "firing ranges" were used in the search engines Google Scholar, PubMed and Science Direct to identify studies that described BLLs in association with firearm use and health effects associated with shooting activities. Thirty-six articles were reviewed that included BLLs from shooters at firing ranges. In 31 studies BLLs > 10 μg/dL were reported in some shooters, 18 studies reported BLLs > 20 μg/dL, 17 studies > 30 μg/d, and 15 studies BLLs > 40 μg/dL. The literature indicates that BLLs in shooters are associated with Pb aerosol discharge from guns and air Pb at firing ranges, number of bullets discharged, and the caliber of weapon fired. Shooting at firing ranges results in the discharge of Pb dust, elevated BLLs, and exposures that are associated with a variety of adverse health outcomes. Women and children are among recreational shooters at special risk and they do not receive the same health protections as occupational users of firing ranges. Nearly all BLL measurements compiled in the reviewed studies exceed the current reference level of 5 μg/dL recommended by the U.S. Centers for Disease Control and Prevention/National Institute of Occupational Safety and Health (CDC/NIOSH). Thus firing ranges, regardless of type and user classification

  1. Characteristics of different frequency ranges in scanning electron microscope images

    Energy Technology Data Exchange (ETDEWEB)

    Sim, K. S., E-mail: kssim@mmu.edu.my; Nia, M. E.; Tan, T. L.; Tso, C. P.; Ee, C. S. [Faculty of Engineering and Technology, Multimedia University, 75450 Melaka (Malaysia)

    2015-07-22

    We demonstrate a new approach to characterize the frequency range in general scanning electron microscope (SEM) images. First, pure frequency images are generated from low frequency to high frequency, and then, the magnification of each type of frequency image is implemented. By comparing the edge percentage of the SEM image to the self-generated frequency images, we can define the frequency ranges of the SEM images. Characterization of frequency ranges of SEM images benefits further processing and analysis of those SEM images, such as in noise filtering and contrast enhancement.

  2. Laser system range calculations and the Lambert W function.

    Science.gov (United States)

    Steinvall, Ove

    2009-02-01

    The knowledge of range performance versus atmospheric transmission, often given by the visibility, is critical for the design, use, and prediction of laser and passive electro-optic systems. I present a solution of the ladar-lidar equation based on Lambert's W function. This solution will reveal the dependence of the maximum range on the system and target parameters for different atmospheric attenuations and will also allow us to take the signal statistics into account by studying the influence on the threshold signal-to-noise ratio. The method is also applicable to many range calculations for passive systems where the atmospheric loss can be approximated by an exponential term.

  3. Ultra-low-power short-range radios

    CERN Document Server

    Chandrakasan, Anantha

    2015-01-01

    This book explores the design of ultra-low-power radio-frequency integrated circuits (RFICs), with communication distances ranging from a few centimeters to a few meters. Such radios have unique challenges compared to longer-range, higher-powered systems. As a result, many different applications are covered, ranging from body-area networks to transcutaneous implant communications and Internet-of-Things devices. A mix of introductory and cutting-edge design techniques and architectures which facilitate each of these applications are discussed in detail. Specifically, this book covers:.

  4. Clutter in the GMTI range-velocity map.

    Energy Technology Data Exchange (ETDEWEB)

    Doerry, Armin Walter

    2009-04-01

    Ground Moving Target Indicator (GMTI) radar maps echo data to range and range-rate, which is a function of a moving target's velocity and its position within the antenna beam footprint. Even stationary clutter will exhibit an apparent motion spectrum and can interfere with moving vehicle detections. Consequently it is very important for a radar to understand how stationary clutter maps into radar measurements of range and velocity. This mapping depends on a wide variety of factors, including details of the radar motion, orientation, and the 3-D topography of the clutter.

  5. Computation of the Different Errors in the Ballistic Missiles Range

    OpenAIRE

    Abd El-Salam, F. A.; Abd El-Bar, S. E.

    2011-01-01

    The ranges of the ballistic missile trajectories are very sensitive to any kind of errors. Most of the missile trajectory is a part of an elliptical orbit. In this work, the missile problem is stated. The variations in the orbital elements are derived using Lagrange planetary equations. Explicit expressions for the errors in the missile range due to the in-orbit plane changes are derived. Explicit expressions for the errors in the missile range due to the out-of-orbit plane changes are derive...

  6. Ranging Consistency Based on Ranging-Compensated Temperature-Sensing Sensor for Inter-Satellite Link of Navigation Constellation.

    Science.gov (United States)

    Meng, Zhijun; Yang, Jun; Guo, Xiye; Zhou, Yongbin

    2017-06-13

    Global Navigation Satellite System performance can be significantly enhanced by introducing inter-satellite links (ISLs) in navigation constellation. The improvement in position, velocity, and time accuracy as well as the realization of autonomous functions requires ISL distance measurement data as the original input. To build a high-performance ISL, the ranging consistency among navigation satellites is an urgent problem to be solved. In this study, we focus on the variation in the ranging delay caused by the sensitivity of the ISL payload equipment to the ambient temperature in space and propose a simple and low-power temperature-sensing ranging compensation sensor suitable for onboard equipment. The experimental results show that, after the temperature-sensing ranging compensation of the ISL payload equipment, the ranging consistency becomes less than 0.2 ns when the temperature change is 90 °C.

  7. Western Aeronautical Test Range (WATR) Mission Control Gold Room During X-29 Flight

    Science.gov (United States)

    1989-01-01

    The mission control Gold room is seen here during a research flight of the X-29 at the Dryden Flight Research Center, Edwards, California. All aspects of a research mission are monitored from one of two of these control rooms at Dryden. Dryden and its control rooms are part of the Western Aeronautical Test Range (WATR). The WATR consists of a highly automated complex of computer controlled tracking, telemetry, and communications systems and control room complexes that are capable of supporting any type of mission ranging from system and component testing, to sub-scale and full-scale flight tests of new aircraft and reentry systems. Designated areas are assigned for spin/dive tests; corridors are provided for low, medium, and high-altitude supersonic flight; and special STOL/VSTOL facilities are available at Ames Moffett and Crows Landing. Special use airspace, available at Edwards, covers approximately twelve thousand square miles of mostly desert area. The southern boundary lies to the south of Rogers Dry Lake, the western boundary lies midway between Mojave and Bakersfield, the northern boundary passes just south of Bishop, and the eastern boundary follows about 25 miles west of the Nevada border except in the northern areas where it crosses into Nevada. Two X-29 aircraft, featuring one of the most unusual designs in aviation history, flew at the Ames-Dryden Flight Research Facility (now the Dryden Flight Research Center, Edwards, California) from 1984 to 1992. The fighter-sized X-29 technology demonstrators explored several concepts and technologies including: the use of advanced composites in aircraft construction; variable-camber wing surfaces; a unique forward- swept wing and its thin supercritical airfoil; strakes; close-coupled canards; and a computerized fly-by-wire flight control system used to maintain control of the otherwise unstable aircraft. Research results showed that the configuration of forward-swept wings, coupled with movable canards, gave

  8. Tree range expansion in eastern North America fails to keep pace with climate warming at northern range limits.

    Science.gov (United States)

    Sittaro, Fabian; Paquette, Alain; Messier, Christian; Nock, Charles A

    2017-08-01

    Rising global temperatures are suggested to be drivers of shifts in tree species ranges. The resulting changes in community composition may negatively impact forest ecosystem function. However, long-term shifts in tree species ranges remain poorly documented. We test for shifts in the northern range limits of 16 temperate tree species in Quebec, Canada, using forest inventory data spanning three decades, 15° of longitude and 7° of latitude. Range shifts were correlated with climate warming and dispersal traits to understand potential mechanisms underlying changes. Shifts were calculated as the change in the 95th percentile of latitudinal occurrence between two inventory periods (1970-1978, 2000-2012) and for two life stages: saplings and adults. We also examined sapling and adult range offsets within each inventory, and changes in the offset through time. Tree species ranges shifted predominantly northward, although species responses varied. As expected shifts were greater for tree saplings, 0.34 km yr -1 , than for adults, 0.13 km yr -1 . Range limits were generally further north for adults compared to saplings, but the difference diminished through time, consistent with patterns observed for range shifts within each life stage. This suggests caution should be exercised when interpreting geographic range offsets between life stages as evidence of range shifts in the absence of temporal data. Species latitudinal velocities were on average <50% of the velocity required to equal the spatial velocity of climate change and were mostly unrelated to dispersal traits. Finally, our results add to the body of evidence suggesting tree species are mostly limited in their capacity to track climate warming, supporting concerns that warming will negatively impact the functioning of forest ecosystems. © 2017 John Wiley & Sons Ltd.

  9. What determines a species' geographical range? Thermal biology and latitudinal range size relationships in European diving beetles (Coleoptera: Dytiscidae).

    Science.gov (United States)

    Calosi, Piero; Bilton, David T; Spicer, John I; Votier, Stephen C; Atfield, Andrew

    2010-01-01

    1. The geographical range sizes of individual species vary considerably in extent, although the factors underlying this variation remain poorly understood, and could include a number of ecological and evolutionary processes. A favoured explanation for range size variation is that this result from differences in fundamental niche breadths, suggesting a key role for physiology in determining range size, although to date empirical tests of these ideas remain limited. 2. Here we explore relationships between thermal physiology and biogeography, whilst controlling for possible differences in dispersal ability and phylogenetic relatedness, across 14 ecologically similar congeners which differ in geographical range extent; European diving beetles of the genus Deronectes Sharp (Coleoptera, Dytiscidae). Absolute upper and lower temperature tolerance and acclimatory abilities are determined for populations of each species, following acclimation in the laboratory. 3. Absolute thermal tolerance range is the best predictor of both species' latitudinal range extent and position, differences in dispersal ability (based on wing size) apparently being less important in this group. In addition, species' northern and southern range limits are related to their tolerance of low and high temperatures respectively. In all cases, absolute temperature tolerances, rather than acclimatory abilities are the best predictors of range parameters, whilst the use of independent contrasts suggested that species' thermal acclimation abilities may also relate to biogeography, although increased acclimatory ability does not appear to be associated with increased range size. 4. Our study is the first to provide empirical support for a relationship between thermal physiology and range size variation in widespread and restricted species, conducted using the same experimental design, within a phylogenetically and ecologically controlled framework.

  10. Effectiveness of electro-fencing for restricting the ranging behaviour ...

    African Journals Online (AJOL)

    Effectiveness of electro-fencing for restricting the ranging behaviour of wildlife: a case study in the degazetted parts of Akagera National Park. Jean D. Bariyanga, Torsten Wronski, Martin Plath, Ann Apio ...

  11. Medium Range Forecast (MRF) and Nested Grid Model (NGM)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Nested Grid Model (NGM) and Medium Range Forecast (MRF) Archive is historical digital data set DSI-6140, archived at the NOAA National Centers for Environmental...

  12. Guidelines for Evaluation of Canadian Forces Indoor Firing Ranges

    National Research Council Canada - National Science Library

    Severs, Y

    1999-01-01

    Indoor Firing Ranges (IFR) within DND are typically used by Canadian Forces (CF) personnel, Cadets, RCMP, and civilian organizations for firing small bore weapons in support of both operational/ occupational and recreational requirements...

  13. Basin and Range Province, Western US, USGS Grids #4

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These grid files were used to produce gravity and basin depth maps of the Basin and Range Province, western United States. The maps show gravity values and modeled...

  14. Range-expanding pests and pathogens in a warming world.

    Science.gov (United States)

    Bebber, Daniel Patrick

    2015-01-01

    Crop pests and pathogens (CPPs) present a growing threat to food security and ecosystem management. The interactions between plants and their natural enemies are influenced by environmental conditions and thus global warming and climate change could affect CPP ranges and impact. Observations of changing CPP distributions over the twentieth century suggest that growing agricultural production and trade have been most important in disseminating CPPs, but there is some evidence for a latitudinal bias in range shifts that indicates a global warming signal. Species distribution models using climatic variables as drivers suggest that ranges will shift latitudinally in the future. The rapid spread of the Colorado potato beetle across Eurasia illustrates the importance of evolutionary adaptation, host distribution, and migration patterns in affecting the predictions of climate-based species distribution models. Understanding species range shifts in the framework of ecological niche theory may help to direct future research needs.

  15. Botanical studies in the Arctic National Wildlife Range: Field report

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report is a botanical study in the Arctic National Wildlife Range during 1970. Cooperative studies on flora and fauna were done on selected sites. Sites include...

  16. Basin and Range Province, Western US, USGS Grids #5

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These grid files were used to produce gravity and basin depth maps of the Basin and Range Province, western United States. The maps show gravity values and modeled...

  17. Standard gestational birth weight ranges and Curve in Yaounde ...

    African Journals Online (AJOL)

    Standard gestational birth weight ranges and Curve in Yaounde, Cameroon. PC Ngassa, L Feuzeu, AP Kegne, MT Obama, MT Wamba, L Kouam, E Nkwabong, W Takang, VK Mve, MR Ekono, EJ Kongnuy, J Itoua-Isséna ...

  18. Lunar laser ranging: a continuing legacy of the apollo program.

    Science.gov (United States)

    Dickey, J O; Bender, P L; Faller, J E; Newhall, X X; Ricklefs, R L; Ries, J G; Shelus, P J; Veillet, C; Whipple, A L; Wiant, J R; Williams, J G; Yoder, C F

    1994-07-22

    On 21 July 1969, during the first manned lunar mission, Apollo 11, the first retroreflector array was placed on the moon, enabling highly accurate measurements of the Earthmoon separation by means of laser ranging. Lunar laser ranging (LLR) turns the Earthmoon system into a laboratory for a broad range of investigations, including astronomy, lunar science, gravitational physics, geodesy, and geodynamics. Contributions from LLR include the three-orders-of-magnitude improvement in accuracy in the lunar ephemeris, a several-orders-of-magnitude improvement in the measurement of the variations in the moon's rotation, and the verification of the principle of equivalence for massive bodies with unprecedented accuracy. Lunar laser ranging analysis has provided measurements of the Earth's precession, the moon's tidal acceleration, and lunar rotational dissipation. These scientific results, current technological developments, and prospects for the future are discussed here.

  19. The middle-range theory of nursing intellectual capital.

    Science.gov (United States)

    Covell, Christine L

    2008-07-01

    This paper is a report of the development of the middle-range theory of nursing intellectual capital. Rising healthcare costs and advances in technology have contributed to the need for better understanding of the influence of nurses' knowledge, skills and experience on patient and organizational outcomes. The middle-range nursing intellectual capital theory was developed using the strategies of concept and theory derivation. The principles of research synthesis were used to provide empirical support for the propositions of the theory. The middle-range nursing intellectual capital theory was derived from intellectual capital theory to make it relevant and applicable to a specific aspect of nursing, continuing professional development. It proposes that the nursing knowledge available in healthcare organizations is influenced by variables within the work environment, and influences patient and organizational outcomes. The middle-range nursing intellectual capital theory should be tested in different healthcare systems and in different settings and countries to determine its effectiveness in guiding research.

  20. Effective-range dependence of two-dimensional Fermi gases

    Science.gov (United States)

    Schonenberg, L. M.; Verpoort, P. C.; Conduit, G. J.

    2017-08-01

    The Feshbach resonance provides precise control over the scattering length and effective range of interactions between ultracold atoms. We propose the ultratransferable pseudopotential to model effective interaction ranges -1.5 ≤kF2Reff2≤0 , where Reff is the effective range and kF is the Fermi wave vector, describing narrow to broad Feshbach resonances. We develop a mean-field treatment and exploit the pseudopotential to perform a variational and diffusion Monte Carlo study of the ground state of the two-dimensional Fermi gas, reporting on the ground-state energy, contact, condensate fraction, momentum distribution, and pair-correlation functions as a function of the effective interaction range across the BEC-BCS crossover. The limit kF2Reff2→-∞ is a gas of bosons with zero binding energy, whereas ln(kFa )→-∞ corresponds to noninteracting bosons with infinite binding energy.

  1. Refuge narrative report : 1967 : Kenai National Moose Range

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Kenai National Moose Range outlines Refuge accomplishments during the 1967 calendar year. The report begins by summarizing the...

  2. Kenai National Moose Range : Annual narrative report : Calendar year 1966

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Kenai National Moose Range outlines Refuge accomplishments during the 1966 calendar year. The report begins by summarizing the...

  3. Kenai National Moose Range : Annual narrative report : Calendar year 1965

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Kenai National Moose Range outlines Refuge accomplishments during the 1965 calendar year. The report begins by summarizing the...

  4. PROVE Surface albedo of Jornada Experimental Range, New Mexico, 1997

    Data.gov (United States)

    National Aeronautics and Space Administration — The objective of this study was to determine the spatial variations in field measurements of broadband albedo as related to the ground cover and under a range of...

  5. Climate change-driven species' range shifts filtered by photoperiodism

    Science.gov (United States)

    Saikkonen, Kari; Taulavuori, Kari; Hyvönen, Terho; Gundel, Pedro E.; Hamilton, Cyd E.; Vänninen, Irene; Nissinen, Anne; Helander, Marjo

    2012-04-01

    Forecasts of species range shifts as a result of climate change are essential, because invasions by exotic species shape biodiversity and therefore ecosystem functions and services. Ecologists have focused on propagule pressure (for example, the number of individuals and invasion events), the characteristics of an invading species, and its new abiotic and biotic environment to predict the likelihood of range expansion and invasion. Here, we emphasize the role of photoperiodic response on the range expansion of species. Unlike temperature, the latitudinal gradient of seasonal changes in day length is a stable, abiotic environmental factor that does not change with local or global climate. Predicting range expansions across latitudes and the subsequent consequences for native communities requires a more comprehensive understanding of how species use day length to coordinate seasonal growth, reproduction, physiology and synchronization of life cycles with interacting individuals and species.

  6. U.S. Geological Survey Gap Analysis Program Species Ranges

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — GAP species range data show a coarse representation of the total areal extent of a species or the geographic limits within which a species can be found (Morrison and...

  7. Annual California Sea Otter Census: 2017 Range Extent Shapefile

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The GIS shapefile "Range extent of southern sea otters 2017" is a simple polyline representing the geographic distribution of the southern sea otter (Enhydra lutris...

  8. Range-wide surveys for prairie butterfly species of concern

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Final report on a project to determine the status and current range of the Dakota skipper (Hesperia dacotae) and Poweshiek skipperling (Oarisma poweshiek) within...

  9. Zadoff-Chu coded ultrasonic signal for accurate range estimation

    KAUST Repository

    AlSharif, Mohammed H.

    2017-11-02

    This paper presents a new adaptation of Zadoff-Chu sequences for the purpose of range estimation and movement tracking. The proposed method uses Zadoff-Chu sequences utilizing a wideband ultrasonic signal to estimate the range between two devices with very high accuracy and high update rate. This range estimation method is based on time of flight (TOF) estimation using cyclic cross correlation. The system was experimentally evaluated under different noise levels and multi-user interference scenarios. For a single user, the results show less than 7 mm error for 90% of range estimates in a typical indoor environment. Under the interference from three other users, the 90% error was less than 25 mm. The system provides high estimation update rate allowing accurate tracking of objects moving with high speed.

  10. Basin and Range Province, Western US, USGS Grids #3

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These grid files were used to produce gravity and basin depth maps of the Basin and Range Province, western United States. The maps show gravity values and modeled...

  11. Basin and Range Province, Western US, USGS Grids, #1

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These grid files were used to produce gravity and basin depth maps of the Basin and Range Province, western United States. The maps show gravity values and modeled...

  12. National Bison Range, Ninepipe and Pablo Refuges: Narrative report - 1970

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for National Bison Range, Pablo NWR, and Ninepipe NWR outlines Refuge accomplishments during the 1970 calendar year. The report begins...

  13. National Bison Range Annual narrative report: Calendar year 1991

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for the National Bison Range outlines Refuge accomplishments for the 1991 calendar year. The report begins with an introduction to the...

  14. National Bison Range: Annual narrative report: Calendar year 1993

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for the National Bison Range outlines Refuge accomplishments for the 1993 calendar year. The report begins with an introduction to the...

  15. National Bison Range Annual narrative report: Calendar year 1984

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for the National Bison Range outlines Refuge accomplishments for the 1984 calendar year. The report begins with an introduction to the...

  16. National Bison Range : Annual narrative report: Calendar year 1985

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for the National Bison Range outlines Refuge accomplishments for the 1985 calendar year. The report begins with an introduction to the...

  17. Definitions of some pasture terms | PJ | African Journal of Range ...

    African Journals Online (AJOL)

    African Journal of Range and Forage Science. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 8, No 1 (1973) >. Log in or Register to get access to full text downloads.

  18. Motion Estimation Utilizing Range Detection-Enhanced Visual Odometry

    Science.gov (United States)

    Friend, Paul Russell (Inventor); Chen, Qi (Inventor); Chang, Hong (Inventor); Morris, Daniel Dale (Inventor); Graf, Jodi Seaborn (Inventor)

    2016-01-01

    A motion determination system is disclosed. The system may receive a first and a second camera image from a camera, the first camera image received earlier than the second camera image. The system may identify corresponding features in the first and second camera images. The system may receive range data comprising at least one of a first and a second range data from a range detection unit, corresponding to the first and second camera images, respectively. The system may determine first positions and the second positions of the corresponding features using the first camera image and the second camera image. The first positions or the second positions may be determined by also using the range data. The system may determine a change in position of the machine based on differences between the first and second positions, and a VO-based velocity of the machine based on the determined change in position.

  19. Reference Ranges: A Novel Interpretation of Turfgrass Nutrient Values

    Directory of Open Access Journals (Sweden)

    T. W. Shaddox

    2017-03-01

    Full Text Available Tissue testing is a common practice in turfgrass management and is intended to guide nutrient applications. However, standard interpretations are a product of agricultural cropping systems and use yield as the primary metric. Yield is often of little importance in turfgrass systems and, thus, traditional test interpretations may be of little value. Reference ranges interpret test results by first defining a ‘normal’ population followed by analysis and determination of the 95% confidence interval for each nutrient. Moreover, reference ranges can be determined for cultivar, season, and age-specific populations, which would result in a more precise interpretation and nutrient recommendation for turf managers. Because reference ranges use the accepted turf quality metric, reference ranges should be considered as an alternate option to traditional turfgrass tissue test interpretations.

  20. Range detection for AGV using a rotating sonar sensor

    Science.gov (United States)

    Chiang, Wen-chuan; Ramamurthy, Dhyana Chandra; Mundhenk, Terrell N.; Hall, Ernest L.

    1998-10-01

    A single rotating sonar element is used with a restricted angle of sweep to obtain readings to develop a range map for the unobstructed path of an autonomous guided vehicle (AGV). A Polaroid ultrasound transducer element is mounted on a micromotor with an encoder feedback. The motion of this motor is controlled using a Galil DMC 1000 motion control board. The encoder is interfaced with the DMC 1000 board using an intermediate IMC 1100 break-out board. By adjusting the parameters of the Polaroid element, it is possible to obtain range readings at known angles with respect to the center of the robot. The readings are mapped to obtain a range map of the unobstructed path in front of the robot. The idea can be extended to a 360 degree mapping by changing the assembly level programming on the Galil Motion control board. Such a system would be compact and reliable over a range of environments and AGV applications.

  1. National Bison Range: Annual narrative report: Calendar year 1992

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for the National Bison Range outlines Refuge accomplishments for the 1992 calendar year. The report begins with an introduction to the...

  2. National Bison Range Annual narrative report: Calendar year 1983

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for the National Bison Range outlines Refuge accomplishments for the 1983 calendar year. The report begins with an introduction to the...

  3. National Bison Range Annual narrative report: Calendar year 1982

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for the National Bison Range outlines Refuge accomplishments for the 1982 calendar year. The report begins with an introduction to the...

  4. National Bison Range Annual narrative report: Calendar year 1990

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for the National Bison Range outlines Refuge accomplishments for the 1990 calendar year. The report begins with an introduction to the...

  5. Wide Output Range Power Processing Unit for Electric Propulsion Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Hall thrusters can be operated over a wide range of specific impulse while maintaining high efficiency. However S/C power system constraints on electric propulsion...

  6. In-Situ Extended Lateral Range Surface Metrology Project

    Data.gov (United States)

    National Aeronautics and Space Administration — We propose to develop an extended lateral range capability for a dynamic optical profiling system to enable non-contact, surface roughness measurement of large and...

  7. Geodetic Control Points - Range Monument Master Positions in Florida

    Data.gov (United States)

    NSGIC Local Govt | GIS Inventory — This coverage indicates a inventory of Florida's Range Monuments fronting on the Atlantic Ocean, Straits of Florida, Gulf of Mexico, and the roughly seventy coastal...

  8. National Bison Range Annual narrative report: Calendar year 1988

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for the National Bison Range outlines Refuge accomplishments for the 1988 calendar year. The report begins with an introduction to the...

  9. Wide Output Range Power Processing Unit for Electric Propulsion Project

    Data.gov (United States)

    National Aeronautics and Space Administration — A power supply concept capable of operation over 25:1 and 64:1 impedance ranges at full power has been successfully demonstrated in our Phase I effort at...

  10. Scintillation mitigation for long-range surveillance video

    CSIR Research Space (South Africa)

    Delport, JP

    2010-09-01

    Full Text Available Atmospheric turbulence is a naturally occurring phenomenon that can severely degrade the quality of long-range surveillance video footage. Major effects include image blurring, image warping and temporal wavering of objects in the scene. Mitigating...

  11. Wide host-range cloning for functional metagenomics.

    Science.gov (United States)

    Wexler, Margaret; Johnston, Andrew W B

    2010-01-01

    We describe how wide host-range cloning vectors can lead to more flexible and effective procedures to isolate novel genes by screening metagenomic libraries in a range of bacterial hosts, not just the conventionally used Escherichia coli. We give examples of various wide host-range plasmid, cosmid, and BAC cloning vectors and the types of genes and activities that have been successfully obtained to date. We present a detailed protocol that involves the construction and screening of a metagenomic library comprising fragments of bacterial DNA, obtained from a wastewater treatment plant and cloned in a wide host-range cosmid. We also consider future prospects and how techniques and tools can be improved.

  12. National Bison Range Annual narrative report: Calendar year: 1978

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for the National Bison Range outlines Refuge accomplishments for the 1978 calendar year. The report begins with an introduction to the...

  13. Range image segmentation for tree detection in forest scans

    Directory of Open Access Journals (Sweden)

    A. Bienert

    2013-10-01

    Full Text Available To make a tree-wise analysis inside a forest stand, the trees have to be identified. An interactive segmentation is often labourintensive and time-consuming. Therefore, an automatic detection process will aspired using a range image. This paper presents a method for the segmentation of range images extracted from terrestrial laser scanner point clouds of forest stands. After range image generation the segmentation is carried out with a connectivity analysis using the differences of the range values as homogeneity criterion. Subsequently, the tree detection is performed interactively by analysing one horizontal image line. When passing objects with a specific width, the object indicates a potential tree. By using the edge points of a segmented pixel group the tree position and diameter is calculated. Results from one test site are presented to show the performance of the method.

  14. Apparatus for handling micron size range particulate material

    Science.gov (United States)

    Friichtenicht, J. F.; Roy, N. L. (Inventor)

    1968-01-01

    An apparatus for handling, transporting, or size classifying comminuted material was described in detail. Electrostatic acceleration techniques for classifying particles as to size in the particle range from 0.1 to about 100 microns diameter were employed.

  15. [September 2000 range survey : Quivira National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This document is data from a September 2000 range survey that was conducted on Quivira National Wildlife Refuge. Six vegetation transects were evaluated and compared...

  16. National Bison Range: Refuge narrative report: Calendar year 1966

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for National Bison Range outlines Refuge accomplishments during the 1966 calendar year. The report begins by summarizing the weather...

  17. Long-range patterns in Hindmarsh-Rose networks

    Science.gov (United States)

    Etémé, Armand Sylvin; Tabi, Conrad Bertrand; Mohamadou, Alidou

    2017-02-01

    Long-range diffusive effects are included in a discrete Hindmarsh-Rose neural network. Their impact on the emergence of nonlinear patterns is investigated via the modulational instability. The whole system is first shown to fully reduce to a single nonlinear differential-difference equation, which has plane wave solutions. The stability of such solutions is investigated and regions of instability are found to be importantly influenced by long-range parameters. The analytical results are confirmed through direct numerical simulations, where scattered and chaotic patterns illustrate the long-range effect. Synchronized states are described by quasi-periodic patterns for nearest-neighbor coupling. The external stimulus is also shown to efficiently control strong long-range effects via more regular spatiotemporal patterns.

  18. Light Detection and Ranging Point Cloud Data: 2000 - Present

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — LIDAR (Light Detection and Ranging) discrete-return point cloud data are available in the American Society for Photogrammetry and Remote Sensing (ASPRS) LAS format....

  19. National Bison Range: Annual narrative report: Calendar year 1977

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for the National Bison Range outlines Refuge accomplishments for the 1977 calendar year. The report begins with an introduction to the...

  20. A novel x-ray circularly polarized ranging method

    Science.gov (United States)

    Song, Shi-Bin; Xu, Lu-Ping; Zhang, Hua; Gao, Na; Shen, Yang-He

    2015-05-01

    Range measurement has found multiple applications in deep space missions. With more and further deep space exploration activities happening now and in the future, the requirement for range measurement has risen. In view of the future ranging requirement, a novel x-ray polarized ranging method based on the circular polarization modulation is proposed, termed as x-ray circularly polarized ranging (XCPolR). XCPolR utilizes the circular polarization modulation to process x-ray signals and the ranging information is conveyed by the circular polarization states. As the circular polarization states present good stability in space propagation and x-ray detectors have light weight and low power consumption, XCPolR shows great potential in the long-distance range measurement and provides an option for future deep space ranging. In this paper, we present a detailed illustration of XCPolR. Firstly, the structure of the polarized ranging system is described and the signal models in the ranging process are established mathematically. Then, the main factors that affect the ranging accuracy, including the Doppler effect, the differential demodulation, and the correlation error, are analyzed theoretically. Finally, numerical simulation is carried out to evaluate the performance of XCPolR. Projects supported by the National Natural Science Foundation of China (Grant Nos. 61172138 and 61401340), the Natural Science Basic Research Plan in Shaanxi Province of China (Grant No. 2013JQ8040), the Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20130203120004), the Open Research Fund of the Academy of Satellite Application, China (Grant No. 2014 CXJJ-DH 12), the Xi’an Science and Technology Plan, China (Grant No. CXY1350(4)), the Fundamental Research Funds for the Central Universities, China (Grant Nos. 201413B, 201412B, and JB141303), and the Open Fund of Key Laboratory of Precision Navigation and Timing Technology, National Time Service Center, Chinese