manoliu lia 1932 1998 romanian track and field athlete
The 1998 bleaching event and its aftermath on a coral reef in Belize doc
... 1989; Williams and Bunkley-Williams 1990; Lang et al 1992; McField 1999) In 1997 1998 the highest seasurface temperatures ever recorded, related to the El Nino-Southern Oscillation (ENSO) and possibly ... Goreau and Hayes 1994; Hoegh-Guldberg 1999; Williams and Bunkley-Williams 2000; Wellington et al 2001a) The role of high levels of incident solar radiation in these bleaching events is complex and ... after 1986 (Aronson and Precht 1997) Ag tenuifolia and the other agariciids readily recruited to and grew on the Echinometra-grazed Ac cervicornis rubble The cover of Ag tenuifolia increased dramatically,...
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Raman spectroscopy and field electron emission properties of aligned silicon nanowire arrays
... frequency shifts and the more asymmetric and the broader the peak becomes This feature has been confirmed by experiments on nanocrystalline silicon [22] and porous silicon [23] and SiNWs fabricated ... completely (Fig 2a and b) Further structural characterization of the SiNWs was performed with TEM and HRTEM Fig shows a typical individual nanowire Fig SEM images of as-prepared and treated SiNWs ... acetone and ethanol for 20 each The cleaned silicon wafer was immersed in a mixture of 4.6 mol/L HF aqueous solution and 0.02 mol/L silver nitrate with equal volume Then, the autoclave was sealed and...
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synthesis, electrical measurement, and field emission properties of a-fe2o3 nanowires
... 10-6 torr The sweep voltage was 0–1100 V and the emission current was measured using Keithley 2410 Results and Discussion Figure 1a and b shows the top view and cross-section view of the Fe-coated ... a-Fe2O3 NWs, a-Fe2O3 film, and Fe film were present in stage I At this stage, for both samples I and II, short NWs (\100 nm) and long NWs ([500 nm) grew from the low and high degree defect regions ... resistance between the CAFM tip and the NW RNW and Rfilm are the resistances of the NW and the film, respectively The overall resistance (Roverall) is the sum of Rcontact, RNW, and Rfilm It can be expressed...
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ultra-sharp a-fe2o3 nanoflakes growth mechanism and field-emission
... 245, 291, 408 and 499 cm−1 correspond to the α-Fe2 O3 phase [20], namely two A1g modes (225 and 499 cm−1 ) and three Eg modes (245, 291 and 408 cm−1 ) Those peaks locating at 552 and 671 cm−1 ... [110] and the growth plane may be (110) where the oxygen is rich and Fe is deficient [13] Driven by the O-rich and Fe-deficient, at low temperatures (260 – 300 ◦ C), the diffusion of Fe atoms and ... points of Fe and α-Fe2 O3 (1535 and 1350 ◦ C, respectively) [15], the growth of α-Fe2 O3 nanoflakes is inexplicable by the vapor phase mechanism such as the vapor–liquid–solid (VLS) and vapor–solid...
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williams, j. (1998). the art and science of analog circuit design
... Manhattan Project and Radiation Lab alumnus, and father of atomic time It was Jerrold who waved a magic wand and got me an MIT appointment, and Jerrold who handed me carte blanche a lab and operating ... Michigan and an MSEE from Stanford University JAMES BRYANT is head of European applications at Analog Devices He lives in England and is a Eur Ing and MIEE and has degrees in philosophy and physics ... Art and Science of Analog Circuit Design The EDN Series for Design Engineers J Williams J Lenk V Lakshminarayanan J Lenk M Brown B Travis and I Hickman J Dostal T Williams R Marston N Dye and...
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dixon (1998) fluid mechanics and thermodynamics of turbomachinery 4th ed
... the long process of abandoning the old Imperial System of Units in favour of the International System of Units, and was soon followed by Canada, Australia, New Zealand and South Africa In the ... versions of eqns (1.8) and (1.9) in radians are also in common use and are written (1.8a) Q , = Qrn ~ ( g H ) / 4’ There is a simple connection between N , and N,, (and between 52, and dividing eqn ... Cengel and Boles (1994), Reynolds and Perkins (1977), Rogers and Mayhew (1992), enables the concept of entropy to be introduced and ideal thermodynamic processes to be defined An important and useful...
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Báo cáo hóa học: " On the Morphology, Structure and Field Emission Properties of Silver-Tetracyanoquinodimethane Nanostructures" pptx
... temperature of 373, 393 and 413 K with 30-nm-thick Ag film, respectively, and other conditions are the same With the temperature increasing, the turn-on field is 2.0, 5.5 and 7.0 V/lm, respectively ... is high The slopes and intercedes of these plots in the high field region are the same, showing the effective emission area and the emission for the Ag-TCNQ nanowires constant and stable Nanoscale ... turn-on field And the main point for good field emission lies on the high conductivity and the regular array density Further work needs to be done to verify the difference between two phases and to improve...
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Báo cáo hóa học: " Research Article Track and Cut: Simultaneous Tracking and Segmentation of Multiple Objects with Graph Cuts" doc
... Bar-Shalom and X Li, Estimation and Tracking: Principles, Techniques, and Software, Artech House, Boston, Mass, USA, 1993 [9] Y Bar-Shalom and X Li, Multisensor-Multitarget Tracking: Principles and ... labels and track- to-detection assignment labels This allows the system to track and segment the objects at time t, while establishing the correspondences between an object currently tracked and ... Conference on Computer Vision and Pattern Recognition (CVPR ’07), pp 1–8, Minneapolis, Minn, USA, June 2007 [3] A Bugeau and P P´ rez, Track and cut: simultaneous e tracking and segmentation of multiple...
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Báo cáo hóa học: " Effect of Substrate Morphology on Growth and Field Emission Properties of Carbon Nanotube Films" pptx
... SWNTs is, however, a high-temperature process and sometimes requires additional postsynthesis processing for FE measurements On the other hand, controlled and low-temperature growth of CNT films is ... but Fe patterned (sample 2), (iii) mechanically polished having randomly distributed pits of different shape and size (sample 3), and (iv) electrochemically etched Si having uniformly distributed ... USA; diameter: 0.5 mm and purity 99.99%), followed by vacuum annealing at 350 °C for making proper electrical contacts Distance between the cathode and anode was kept as cm and the current density...
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Báo cáo hóa học: " Synthesis, Electrical Measurement, and Field Emission Properties of a-Fe2O3 Nanowires" potx
... 10-6 torr The sweep voltage was 0–1100 V and the emission current was measured using Keithley 2410 Results and Discussion Figure 1a and b shows the top view and cross-section view of the Fe-coated ... a-Fe2O3 NWs, a-Fe2O3 film, and Fe film were present in stage I At this stage, for both samples I and II, short NWs (\100 nm) and long NWs ([500 nm) grew from the low and high degree defect regions ... resistance between the CAFM tip and the NW RNW and Rfilm are the resistances of the NW and the film, respectively The overall resistance (Roverall) is the sum of Rcontact, RNW, and Rfilm It can be expressed...
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ORCHARD, GARDEN, AND FIELD INSECTSINSECTS pot
... a day; and that if the average number of eggs laid by each female is one hundred and eighty-five, one chickadee would thus destroy in one day five thousand five hundred and fifty eggs, and, in ... "worm," soon hatches and eats its way into the apple Many affected apples ripen too soon and drop as "windfalls." Others remain on the tree and become the common wormy apples so familiar to growers ... fruit, and causes it to drop before ripening The larva then enters the ground to a depth of several inches There it becomes a pupa, and later, as a mature beetle, emerges and winters in cracks and...
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Báo cáo lâm nghiệp: "Nutrient status and field performance of tree seedlings planted in Mediterranean degraded areas" doc
... Mg and N, and Mg and Ca were still positive, whereas correlations between K and N, and K and P were negative On limestone, needle N concentration was positively related to P concentration, and ... diameter on a randomly selected subset of 25 seedlings per site and species 2.4 Leaf and needle sampling and analysis In July 1997, we collected one-year-old needles and leaves from 10 randomly selected ... status and field performance based on early survival and growth Pinus halepensis and Quercus ilex are among the most widespread tree species in the Mediterranean Basin They tolerate basic soils, and...
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Báo cáo khoa học: "Effects of desiccation and freezing on vitality and field performance of broadleaved tree species" ppsx
... freezing affected REL and survival The effects of desiccation and freezing on planting stock quality and field performance varied and depended upon the length of exposure and species A main result ... desiccation and rough-handling on the survival and early growth of ash, beech, birch and oak seedlings, Ann For Sci 56 (1999) 391–402 [23] Ritchie G.A., Assessing seedling quality, in: Duryea M.L., Landis ... Research Institute’s experimental field site at 15th of January 1998, in a completely randomized design (40°35' N, 22°58' E, 10 m altitude) The site had been cultivated and weeds were controlled manually...
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Báo cáo toán học: "quality and field performance of Douglas fir seedlings under varying degrees of water stress" potx
... values The field trials were installed in a randomised block with two and four blocks for water-stressed and well-watered regimes, respectively Each block contained 120 seedlings, with ten randomised ... potential and root moisture content and subsequent forest performance of Sitka spruce and Douglas fir transplants, Forestry 65 (1992) 463-472 [32] Stein W.I., Nursery practices, seedling sizes and field ... Water potential in Douglas fir and other conifer species was correlated with mortality [4, 33] It provided good estimates of first- and second-year field survival and height increment in Douglas...
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Báo cáo khoa học: "Effect of desiccation during cold storage on planting stock quality and field performance in forest species" doc
... and root water content: two variables that were measured in all species and treatments and were most sensitive to desiccation in shoots and roots, respectively Some additional results on WL and ... between root water content and survival (curvilinear relationship) on the one hand and between root water content and height variation (linear relationship) on the other hand (figure 4) In red oak, ... Douglas fir [32] and in Sitka spruce [7] Several quality variables and RGP have been used to predict field performance of seedlings exposed to desiccation The relationship between RGP and field performance...
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Báo cáo lâm nghiệp: "The effects of stock type and radicle pruning on blue oak morphology and field performance" docx
... Research and Extension Center Finally, a special thanks to J Tecklin, a UC Staff Research Associate, who helped plant and maintain the seedlings and collected and entered most of the field data ... Oak woodlands are also very important aesthetically, since the tree-covered hillsides provide a distinctive character to the state’s landscape In the minds of many, oaks and oak woodlands are ... trimming the radicles of germinated acorns on seedling morphology and field performance MATERIALS AND METHODS Acorn collection and planting Acorns for this study were collected in early October...
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Báo cáo khoa học: "Growth-chamber trial on frost hardiness and field trial on flushing of sessile oak" pdf
... 111-120 The author thanks E Burchard and C Dühring for technical assistance, H Venne and BR Stephan for valuable discussions and comments, and J D Deans and an unknown reviewer for their helpful ... hardiness of Acer pseudoplatanus and found little difference between seedlings and adult trees He described the frost resistance of different organs and tissues and concluded that frost hardiness ... France (F), from Austria (A), each from Belgium (B) and Denmark (DK) and provenance each from Great Britain (GB), Poland (PL), Hungary (H) and This study was conducted on 34 provenances of Q...
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Báo cáo khoa học: " Ecophysiology and field performance of black spruce (Picea mariana): a review" ppsx
... growth and survival of natural or outplanted seedlings through their effects on water relations, gas exchange, mineral nutrition, soil and air temperature, and light quantity and quality (Brand and ... with field performance Sutton (1987), for example, found poor correlations between field performance and RGC indices based on new root numbers, and good correlations between field performance and ... boreal conifers, its survival and growth are negatively affected by flooding in peatlands (Payandeh, 1975; Dang and Lieffers, 1989) Root tips not survive prolonged flooding and show little growth into...
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báo cáo khoa học: "Association analysis of frost tolerance in rye using candidate genes and phenotypic data from controlled, semi-controlled, and field phenotyping platforms" potx
... 2008 and two months in 2009, and the interaction of year and linear trend in time Three platform-specific random effects (vector gPLATFORM) were used: replication, a random intercept and a random ... associations in a) controlled, b) semi-controlled, and c) field platforms The left and right hand side bars in a), b) and c) represent alleles with negative and positive effects relative to the Lo152 ... between the controlled and semi-controlled platform with r = 0.56, followed by correlations between the controlled and field platform with r = 0.54, and the semi-controlled and field platform with...
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