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Arthur W. Sampson—Pioneer Range Scientist
No full textArthur W. Sampson, internationally known range scientist, plant ecologist and professor of forestry, died of pneumonia in San Francisco, California, February 7, 1967. This brief biography by his former close friends, associates, and students is affectionately dedicated to his memory.This material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries.The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact [email protected] for further information.Migrated from OJS platform August 202
Specification Testing in Nonlinear Time Series with Long-Range Dependence
Get PDFThis paper proposes a model specification testing procedure for parametric specification of the conditional mean function in a nonlinear time series model with long–range dependence. An asymptotically normal test is established even when long–range dependence is involved. In order to implement the proposed test in practice using a simulated example, a bootstrap simulation procedure is established to find a simulated critical value to compute both the size and power values of the proposed test.Asymptotic theory, Gaussian process, nonlinear time series, long-range dependence, parametric specification
On the range of sociolect lexis in the 21st century
No full textThe article is devoted to the issue of the range of use and reception of
sociolect forms. Referring to contemporary tendencies and phenomena (e.g.
specialization and increase of media professionalism, or contemporary literary
strategies), the author proves that notions of environmental origin popularize
becoming a tool of communication on the supranational level.Druk publikacji został sfinansowany przez Uniwersytet Marii Curie-Skłodowskiej
w Lublinie w ramach grantu Wydziału [email protected] Marii Curie-Skłodowskiej w Lublinie139711
Free Range Orchestra performance with Evan Parker
No full textA performance of free improvised experimental orchestral music performed by the Free Range Orchestra with Evan Parker and recorded by Daniel Herbert & Sean Williams at Colyer Fergusson Hall
A power-saving modulation technique for time-of-flight range imaging sensors
No full textTime-of-flight range imaging cameras measure distance and intensity simultaneously for every pixel in an image. With the continued advancement of the technology, a wide variety of new depth sensing applications are emerging; however a number of these potential applications have stringent electrical power constraints that are difficult to meet with the current state-of-the-art systems. Sensor gain modulation contributes a significant proportion of the total image sensor power consumption, and as higher spatial resolution range image sensors operating at higher modulation frequencies (to achieve better measurement precision) are developed, this proportion is likely to increase. The authors have developed a new sensor modulation technique using resonant circuit concepts that is more power efficient than the standard mode of operation. With a proof of principle system, a 93–96% reduction in modulation drive power was demonstrated across a range of modulation frequencies from 1–11 MHz. Finally, an evaluation of the range imaging performance revealed an improvement in measurement linearity in the resonant configuration due primarily to the more sinusoidal shape of the resonant electrical waveforms, while the average precision values were comparable between the standard and resonant operating modes
Zawartość siarki w liściach chryzantem z grupy Time w uprawie całorocznej
No full textThe determination of the range of changes in the sulphur content in chrysanthemum (Dendranthema grandiflora TZVELEV, syn. Chrysanthemum x grandiflorum /Ramat./ Kitam. ) leaves of Time group in the all year-round culture was studied. The studies were carried out in 2002. The experiment included 12 growing cycles with 11 chrysanthemum cultivars. The first cycle was initiated on January 2, 2002. The successive cycles were started on February 2, March 2, and so on. Plants were grown in peat medium using fertigation system. From the day of potting, chrysanthemums were treated with a short day regime. In periods of natural long days, a 10.5-hour day was obtained by applying shading. In the period of light deficiency no supplementary assimilation light was used. In chrysanthemum leaves, after mineralization in strong acids, the total content of sulphur was determined by nephelometric method. The content of the studied element oscillated in the range of 0.25-0.45% S DM. Sulphur content depended on light conditions. The highest content was found in periods of natural light deficiency (November-February), while the lowest content was identified in months with better light conditions.Określono zakres zmian zawartości siarki w liściach chryzantem (Dendranthema grandiflora TZVELEV, syn. Chrysanthemum x grandiflorum /Ramat./ Kitam.) z grupy Time w całorocznej uprawie. Badania przeprowadzono w roku 2002. Doświadczenie obejmowało 12 cykli uprawowych z 11 odmianami chryzantem. Pierwszy cykl zapoczątkowano 2 stycznia 2002 roku. Kolejne cykle rozpoczynano 2 lutego, 2 marca itd. Rośliny uprawiano w substracie torfowym z wykorzystaniem fertygacji. Od momentu posadzenia chryzantemy traktowane były dniem krótkim. W okresach naturalnego długiego dnia, stosując zaciemnianie, uzyskiwano dzień 10,5 godzinny. Nie stosowano doświetlania asymilacyjnego w okresie niedoboru światła. W liściach chryzantem po mineralizacji materiału w silnych kwasach oznaczono całkowitą zawartość siarki metodą nefelometryczną. Zawartość badanego pierwiastka mieściła się w zakresie 0,25-0,45% S (s.m.). Zawartość siarki zależała od warunków świetlnych. Najwyższe zawartości stwierdzono w okresach naturalnego deficytu światła (listopad - luty), natomiast najniższe w miesiącach, w których panują lepsze warunki świetlne
Fractal Analysis of Intraflow Unidirectional Delay over W-LAN and W-WAN Environments
Get PDFWe have analysed unidirectional delay traces of a diverse set of IPv6 microflows routed over W-LAN and W-WAN environments. Using a number of time-domain and frequency-domain estimators we have examined the existence and intensity of long-range dependence in packet delay when viewed as time-series data. The correlation structures of packet delay on bulk TCP data path and UDP flows follow asymptotic decay while Hurst exponent estimates suggest from moderate to strong intensity(H->1)
Cairn's Range, W. [i.e. west] boundary, Queensland [picture] /
No full textPart of collection: Drawings of North-Western Exploration Party expedition lead by W.O. Hodgkinson, western Qeensland, 1875-1876.; Condition: Some foxing. Glued to mount.; Also available in an electronic version via the Internet at: http://nla.gov.au/nla.pic-vn3262435. Map titled 'Map showing route traversed by north-western exploration party' shows a Cairn Range on the Queensland-Northern Territory border at approximately S 22°50'.--Information from acquisition documentation
Characterization for high dynamic range imaging
No full textIn this paper we present a new practical camera characterization technique to improve color accuracy in high dynamic range (HDR) imaging. Camera characterization refers to the process of mapping device-dependent signals, such as digital camera RAW images, into a well-defined color space. This is a well-understood process for low dynamic range (LDR) imaging and is part of most digital cameras — usually mapping from the raw camera signal to the sRGB or Adobe RGB color space. This paper presents an efficient and accurate characterization method for high dynamic range imaging that extends previous methods originally designed for LDR imaging. We demonstrate that our characterization method is very accurate even in unknown illumination conditions, effectively turning a digital camera into a measurement device that measures physically accurate radiance values — both in terms of luminance and color — rivaling more expensive measurement instruments
3D Shape Reconstruction from Multiple Range Image Views
No full textShape reconstruction of different three dimensional objects using multiple range images has evolved recently within the recent past. In this research shape reconstruction of a three dimensional object using multiple range image views is investigated.
Range images were captured using the Waikato Range Imager. This range images camera is novel in that it uses heterodyne imaging and is capable of acquiring range images with precision less than a millimeter simultaneously over a full field. Multiple views of small objects were taken and the FastRBF was explored as a mean of registration and surface rendering. For comparison to the real range data, simulated range data under noise free condition were also generated and reconstructed with the FastRBF tool box.
The registration and reconstruction of simple object was performed using different views with the FastRBF toolbox. Analysis of the registration process showed that the translation error produced due to distortion during registration of different views hinders the process of reconstructing a complete surface. While analyzing the shape reconstruction using the FastRBF tool it is also determined that a small change in accuracy values can affect the interpolation drastically. Results of reconstruction of a real 3D object from multiple views are shown
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